In the residential excavation field, time is money. For Ken Williams of Williams Loader Services Inc. the time savings that he gained from adding a PowerGrip multipurpose bucket to his CAT 314 was immense. When using the PowerGrip in conjunction with his existing PowerTilt Tilting Coupler, Williams is able to complete certain jobs, such as loading trucks, up to 30 percent more quickly than with a conventional bucket/thumb combination. The PowerTilt/PowerGrip combo in addition to the four other PowerTiIt attachments that Williams uses on his fleet of backhoes has maximized his productivity and improved his bottom line.Life before PowerGrip
Prior to using the PowerTilt/ PowerGrip combo, Ken Williams used a hydraulic thumb for clearing lots and found it to be challenging at best. When loading trucks with the thumb, Williams would have to swing around the material at only one angle to the truck, and when he was clearing and loading six foot saplings, he always had to rely on a chain saw to rip them apart, costing him extra man-hours swapping between the excavator and the chain saw at the job sites. With the PowerTilt/PowerGrip combo, Williams never has to leave his machine. The unique design allows him to angle the material into the truck in any direction and rip apart six-foot saplings with ease.
The PowerGrip with its unmatched, hand-like manipulation and dexterity is also unique in that it can be used to pick up and stack brittle stone without breaking it; a task that Williams Loader Services does frequently. When Williams added the PowerGrip to their existing CAT backhoe, it also opened up the opportunity to add utility work to their services. In working on water and sewer lines, Williams found that “When getting into rocky material; you can scoop up a bucket of rocks, then open up the bucket three to four inches to separate the smaller material. You can never do this effectively with a standard bucket.”Flexible performance and durability by design
Parker's integral designs are based on research, engineering and innovation, providing the most efficient solutions for work site versatility. PowerTiIt is available for equipment up to 75,000 pounds in eight sizes with standard rotation of up to 180 degrees. Each model is designed for a specific class of machinery and individually customized to fit the carrier. In addition, PowerTiIt is specifically engineered to work with a variety of other attachments, greatly enhancing your machine's versatility. Wide buckets, brushcutters, narrow buckets, hydraulic hammers, rippers and mowers, are just a few of the attachments that are compatible with the PowerTiIt.
PowerGrip buckets are available for equipment up to 20 tons, in three sizes, with bucket width ranges from 24 to 48 inches in the trenching profiles and 48 or 60 inches in the ditching profiles. PowerGrip has been engineered with the flexibility to function as a trenching, ditching, grading or clamshell bucket and can also be used for gripping and loading. PowerGrip’s adaptability allows it to be a true multi-purpose tool that can change from one job to another without the need to change tools.Diversity of tasks performed with PowerTilt/PowerGrip combo
Williams uses their four PowerTilts and one PowerGrip on his entire fleet of backhoe loaders to perform a wide range of tasks throughout the residential excavation process, ranging from clearing lots, digging basements, tight grading, cutting a swale and picking up soapstone to ripping trees apart, separating materials and loading dump trucks. Because there is no need to remove the PowerGrip bucket, Williams can switch easily from working on his excavating jobs to doing his water and sewer utility work; an important labor and time-saving feature. For his excavation business, Williams uses a grading bucket with PowerTiIt attachment 100 percent of the time, as well as a PowerGrip multi-purpose bucket in combination with a PowerTilt attachment on their CAT314.
“I don't take the PowerTilts or PowerTilt/ PowerGrip combo off the machines, even though they wouldn’t be hard to remove. I personally use the machine with the PowerGrip 50 percent of the time; the other 50 percent of the time my operators use it. Currently we have over 3,000 hours logged onto the PowerGrip. I would never buy another hydraulic thumb. The weight savings and overall versatility of PowerGrip puts it so far ahead of a thumb. I can clear lots, dig basements, cut a swale, rip trees apart, separate materials, and even pick up brittle soapstone without breaking it.”
Ken Williams, Williams Loader Service, IncThe rotary actuator technology
PowerGrip and PowerTilt use Parker’s innovative Helac sliding-spline operating technology to convert linear piston motion into powerful shaft rotation. Each actuator is composed of a housing and two moving parts — the central shaft and piston. As hydraulic pressure is applied, the piston is displaced axially, while the helical gearing on the piston outer diameter and housing’s ring gear cause the simultaneous rotation of the piston. PowerGrip and PowerTilt’s end caps, seals and bearings all work in tandem to keep debris and other contaminants out of the inner workings of the actuator, prolonging product life and reducing required maintenance.
To learn more about our construction attachments, including PowerGrip and PowerTilt, visit http://solutions.parker.com/powertilt
This article was contributed by Jessica Howisey, marketing communications manager and Daniel Morgado, applications engineer, Helac Business Unit, Cylinder Division.
As we embark on an era where technology has seemingly evolved every aspect of our lives, the agriculture industry as well is undergoing an evolution.
New technologies, including drones, robots, GPS, artificial intelligence, big data, IoT technologies and more, are helping farmers use “precision agriculture.” This is farming that optimizes the use of land, uses fewer resources, creates less waste and helps ensure we meet the world’s food demand.
Download our white paper Off-Road Trends: Driving Cleaner, More Efficient and Connected Machinery, and learn what influences the advances in mobile heavy machinery.
What is precision agriculture?
The precision agriculture trend is said to have begun in the 1980s when GPS technology was first made available to the U.S. public. Smart farming tools were developed to help farmers more effectively apply fertilizers and pesticides. By 2015, according to a survey by Purdue University and CropLife magazine, nearly 90% of U.S. farmers were using GPS for chemical applications. In 2020, the Federal Communications Commission announced it would focus on supporting the development of precision ag technologies and committed $1 billion to the effort.
Today, precision agriculture encompasses a variety of technologies and farm management applications, including:
Robots that use vision, guidance and machine learning technology to handle tasks such as identifying and spraying individual weeds. The ability to target an individual weed frees farmers from having to spray entire fields, greatly decreasing their use of pesticides.
Drones that can monitor fields in real-time, gathering a variety of data for farmers to analyze and improve their practices. Advanced drones can selectively apply pesticides, herbicides and fertilizers.
Satellite imagery and Geographic Information Survey (GIS) mapping to help farmers monitor fields, detect threats and gather a variety of data for analysis.
Software that helps farmers make more informed, data-driven decisions regarding field conditions and needs, weather implications, record keeping and more.
Other precision agriculture applications leverage smart farming machinery; machines using either machine-to-machine communications or artificial intelligence (AI) to optimize farming practices. These technologies and applications include:
Irrigation systems using smart controllers and sensors to deliver water only where it’s needed and only in the amount needed.
GPS-guided autosteer systems for tractors, combines, sprayers and other large equipment. These systems can help keep crop rows straight and prevent overlaps.
Satellite-guided, precision seeders and fertilizer systems. These can be accurate to an inch or less, helping maximize yield.
Sensors integrated into farm equipment that can help monitor data such as seed counts, nutrient levels and fertilizer flow.
The benefits of using precision agriculture to help feed a growing population seem clear. And while precision agriculture is likely to grow — the market has an expected CAGR of 12.7% between 2020 and 2025, according to Markets and Markets — the technology does present some challenges.
One challenge is related to big data in agriculture, and to making sure farmers have the tools they need to make maximum use of the information returned to them. This might be another job for AI. Quoted in Inside Unmanned Systems,
“Using AI and deep learning makes it possible to harvest the data and make sense of it. The data is more manageable when algorithms automatically search and sift through it, pulling out the analytics growers need most.”
Jeff Williams of Empire Unmanned
Another challenge, cited in the same article, is that of speed. Farmers need tools to process sensor-collected data by themselves, without having it send it off for processing. This speed allows farmers to use big data to make more actionable, meaningful decisions.
A new era of smart farming
Perhaps no other human activity has been as important throughout our history as farming. It will continue to be critical as our global population swells to nearly 10 billion people by 2050.
Precision agriculture is poised to help farmers step up to the daunting challenge of meeting this growing population’s food demand. Employing a variety of technologies, including GPS, satellite imagery, drones, big data and AI, precision agriculture gives farmers much more sophisticated control of their farm management practices, helping them improve yields while reducing their use of resources and production of waste.
To learn more about the trend of precision agriculture and how Parker plays a key role, read our Off-Road Trends White Paper.
This article was contributed by the Hydraulic Team
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Difficulty and danger have always been inherent in the mining profession. Miners typically face risks ranging from flying debris to mine collapse, to vehicular incidents.
But as mining operations move toward the future, many offer a new vision. It’s one of partially and fully autonomous mining equipment, programmed to handle some of those difficult and dangerous tasks traditionally handled by people.
Mining automation is a key component of many companies’ digital transformation strategies. It promises improvements to safety, productivity, and reduced labor costs. In a 2020 survey of global mining leaders, 75% said they view this kind of technological disruption as more of an opportunity than a threat, while 36% identified innovation and technological transformation as one of their company’s top two growth strategies.
The former CEO of Australian mining firm BHP, Andrew Mackenzie, has stated that automation could save the industry billions.
Download our white paper Off-Road Trends: Driving Cleaner, More Efficient and Connected Machinery, and learn what influences the advances in mobile heavy machinery.Use of autonomous vehicles in mining is expanding
The use of automated equipment in mines is still small. One estimate stated that less than 3% of current mobile mining equipment is autonomous. However, it’s expanding rapidly. Multiple OEMs now offer autonomous equipment, such as hauling trucks, load/haul/dump (LHD) machines, and drillers. According to an article published in Mining, Metallurgy & Exploration in July 2020:
As of February 2020, 459 autonomous trucks were accounted for and active in mines around the world.
Caterpillar® has provided more than 239 autonomous trucks to mining operations in several countries globally, including the United States.
Komatsu® has distributed 141 autonomous trucks to mines in several countries, including the U.S. At one mine in Chile, the use of these trucks over 10 years has significantly reduced the frequency of collision, while raising productivity and tire performance.
The industry expected a 32% growth in the use of automated vehicles in 2019-2020, and higher rates are expected for future years.
Other key emerging technologies include:
Auto-tunable robotic loading (ARTL) technology, which uses non-visual sensors to allow an LHD to judge the size and configuration of a rock pile and adjust for excavation. This technology promises to help automated LHDs better operate in low light/dusty conditions.
Automated power crushers that provide greater crush down capacity between primary and secondary crushers.
Automated, electric light rail systems. These may combine features from conveyors, trucks, and heavy rail in a single system for hauling bulk materials out of a mine.
Challenges to widespread adoption of automated mining equipment
Despite the great promise for automated equipment to transform mine operational efficiency, productivity, and safety, challenges do remain.
As pointed out in a 2018 report by McKinsey & Co., investing in technology is only one piece of the puzzle. Mines also need to adapt management and operational systems to realize automation’s potential, while shifting company culture to being one that embraces a more agile organization that can get value from the technology.
The future of mining automation
Mining has traditionally been difficult and often dangerous work. But new technologies are poised to remove some of the most challenging mining tasks from human hands, creating jobsites that are safer and more productive. Leading OEMs now offer automated mining equipment, including trucks, LHD machines, and drillers. While industrywide adoption has been somewhat slow, it’s difficult to imagine a future of mining without these technologies — and others such as artificial intelligence — playing a key role.
To learn more about the trends in mining automaton and how Parker plays a key role, read our Off-Road Trends: Driving Cleaner, More Efficient and Connected Machinery White Paper.
This article was contributed by the Hydraulics Team
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The construction boom in Western Washington spawned many new entrants to the construction business. The leaders of the pack availed themselves of the right tools needed to provide quality workmanship on time, every time. Thomas Construction Company, located in Maple Valley, WA, fully understands the importance of having the right tools for the job. That's why they switched from a cylinder-style tilting bucket to a Helac PowerTilt Tilting coupler PowerTilt allowed the Thomas Construction Company to double their productivity on a host of heavy construction projects that required 1:1, 2:1 and 3:1 slopes for retention ponds and roads.
PowerTiIt has been an important tool for Operations Manager, Dennis Gilkinson’s team at Thomas Construction Company. In the hands of a skilled operator, PowerTilt yields incredible time-savings.
"With the PowerTilt, I accomplished twice as much work on the job site. PowerTilt allowed me to simply tilt the bucket instead of repositioning the entire machine. When the PowerTilt was in the shop for service, I was forced to use a standard bucket and the job took me twice as long to complete.”
CAT 330 Equipment Operator, Kelly Kazaro
PowerTilt outperforms conventional tilting buckets
Increasing the speed at which projects were completed was only half the battle for Thomas Construction Company. Using their cylinder-style tilting bucket while working on rough uneven roads proved difficult and required significant care, time and attention to detail to achieve the quality finished product that they are known for. A cylinder-style tilting bucket forced the equipment operator to put extra dirt on the uneven road under the tracks of his excavator to level the machine in order to build a smooth, consistent 1:1,2:1 or 3:1 slope that the customer demanded. A switch to PowerTilt allowed them to deliver consistent quality without all the hassle and time inefficiency of a tilting bucket.
The cylinder-style tilting bucket did not have the adequate range nor rotation necessary to complete slope work efficiently. The construction company found that they had to reposition the excavator far too frequently, resulting in wasted time spent moving the machine instead of doing productive work. PowerTilt turned out to be the perfect solution to bridge this productivity gap.
The greater rotation of 134 degrees side-to-side swing rotation provided by PowerTilt addressed problems with the tilting bucket. With PowerTilt the need to reposition the machine far less frequently resulted in dramatically increased productivity. Without the PowerTilt, it was very difficult to build a consistent, smooth, finished slope. PowerTilt allowed operators to make small subtle adjustments that saved a tremendous amount of time and improved the quality of the finished product on the job site.Inside the rotary actuator technology
PowerTilt uses Parker’s innovative sliding-spline operating technology to convert linear piston motion into powerful shaft rotation. Each actuator is composed of a housing and two moving parts — the central shaft and piston. As hydraulic pressure is applied, the piston is displaced axially, while the helical gearing on the piston outer diameter and housing's ring gear cause the simultaneous rotation of the piston. PowerTiIt’s end caps, seals and bearings all work in tandem to keep debris and other contaminants out of the inner workings of the actuator, prolonging product life and reducing required maintenance.Engineered for year-round use
Over a decade of research, innovation and engineering has gone into making PowerTilt an integral solution for worksite efficiency. PowerTiIt is specifically engineered to work with a variety of attachments to enhance machine versatility and productivity. PowerTilt's inherent flexibility allowed Thomas Construction Company to keep PowerTilt on their machine 100 percent of the time, year-round. PowerTilt is available for equipment up to 75,000 pounds in eight sizes with standard rotation of up to 180 degrees. Each model is engineered for a specific class of machinery and individually customized to fit your machine.
To learn more about PowerTilt, visit http://solutions.parker.com/powertilt.
This article was contributed by Jessica Howisey, marketing communications manager and Daniel Morgado, applications engineer, Helac Business Unit, Cylinder Division
The Tamrock Axera 226 — built in Lyon, France, by Sandvik Mining and Construction — is a rubber-tired, twin-boom rock-drilling machine. Typically used for underground hard-rock mining and tunneling applications, the machine is designed to drill a series of holes in the face, sides, roof and floor of a chamber without being moved. It can produce cross-sectional areas between six- and 40 m2 from one position. Depending on the application, rock bolts or explosives are inserted into the holes. With the drills located at the outboard ends of the booms, the risk of injury to the operator and damage to the main machine from falling rock and debris is minimized during the drilling operation.How does the rock drilling machine work?
Power comes from a Deutz BF4M2012 diesel engine that delivers 74 kW (100 hp). The rig carries twin 55-kW hydraulic power units that produce 18 to 24 kW of percussive power. A drill mechanism uses a combination of percussion and rotation of the drill bit. A manually operated, hydraulically controlled drilling system — with multiple automatic functions — allows high drilling performance with good drill-steel economy and high reliability.
The dual-boom design extends the time period between drill-bit changes. In addition, one boom can work while the other is being set up. A series of rugged cylinders coordinates the X-Y boom movements and manipulates the feed, making control of the drill simple and logical. Each boom includes a 360° helical rotary actuator that enables the operator to roll the feed beam over to drill into face, side, roof, and floor surfaces. The actuator also can position the feed for full visibility over the top of the feed and the drill bit.Helical rotary actuators
The rotary actuators, special model L30-95 manufactured by Parker’s Helac Business Unit are integral parts of the machine, mounted in-line between the booms and drill heads. Their large circular, integral shaft flange — with drilled and tapped bolt circle — is used to attach the actuator to the boom. The drill head assembly is attached to the actuator’s octagonal rear mounting flange. The actuator’s shaft remains stationary with the boom while the housing and drill head rotate. (The actuator also incorporates a drilled and tapped mounting rail on the housing. Sandvik uses the rail mounting for other rotating applications.)
The unique characteristics of the helical rotary actuator make it ideal for this application. Its sliding-spline operating concept produces very high output torque (in this case: 90,000 inch-pounds at 3,000 psi) from a compact configuration. The actuator measures 33 inches in overall length with an eight-inch housing diameter and weighs 415 pounds.
Because all spline teeth remain engaged at all times, loads are equally distributed over the teeth This results in exceptional durability and high tolerance to the shock loads inherent in rock drilling. Backlash is almost negligible — approximately 1°. Parker’s patented integral bearing design enables the actuator to support heavy radial moment, and thrust loads without the need for additional external bearings.
In the Axera 226 machine, one actuator supports the entire drill head assembly on each boom. Because all sealing occurs against smooth, cylindrical surfaces, internal bypass and external leakage has effectively been eliminated, resulting in smooth positioning capabilities and zero drift after a position has been selected. The actuator has an integral dual counterbalance valve that further improves positioning accuracy and adds an extra margin of safety in case of system failure. In short, the helical rotary actuator functions as rotating device, mounting bracket, and bearing support — all in one component.
This article was contributed by Jessica Howisey, marketing communications manager and Daniel Morgado, applications engineer, Helac Business Unit, Cylinder Division and was originally published by Hydraulics & Pneumatics.
It is not unusual in the Pacific Northwest to get substantial rainfall, up to eighteen inches in thirty-six hours, which results in severe damage to forest roads. To make matters worse, many of these washed-out roads span fragile native streams and rivers — home to several threatened or endangered trout and salmon species. For instance, sediment is released into the stream beds causing serious damage to both individual fish and their stream habitats. Fortunately, the experienced team at JJ Welch Contracting have the right tools to rebuild these damaged roads and restore fragile stream habitats.A precision tool that outperforms conventional digging buckets and hydraulic thumbs
Jim Welch, Owner of JJ Welch Contracting, has experienced the benefits firsthand of having the right tools to rebuild roads and restore stream habitats. JJ Welch Contracting uses a unique Kobelco 200 excavator with an extendable dipper stick to regularly rebuild washed out road banks and stream habitats. The extendable dipper stick allows him to do more work from the road avoiding the need to cut shelves into the land around the road. However, the extendable dipper stick was only one piece of the puzzle. He still needed the right attachment for rebuilding the road bank and stream habitat. After trying a conventional digging bucket and a hydraulic thumb, Welch found the optimal attachment -- the Parker PowerGrip Multi-Purpose Bucket.
"In addition to saving up to an hour and a half each day, I am utilizing my materials much better with the PowerGrip. I’m not dropping rock or mishandling material like with a conventional bucket or hydraulic thumb"
- Jim Welch, Owner of JJ Welch Contracting
When Welch tried a conventional digging bucket, he found that he lacked optimal control of material placement — when the bucket rolled forward, all the material would tend dump out too quickly. With PowerGrip, Welch can virtually eliminate material waste when he uses the smooth lip of the bucket to pile up the rock or material, and then use the clam functionality to pick up materials. The PowerGrip eliminates excess dirt being picked up with rock which helps us gain efficiency through improved material utilization.”
When Welch used a hydraulic thumb on his smaller excavators, he discovered the thumb was less than ideal for placing rocks and other material, and the operator is required to keep constant pressure on the thumb to avoid dropping rock prematurely. With PowerGrip, the gripping action is accomplished by one circuit as opposed to two opposing circuits found with a thumb. Having one circuit and an integral lock valve that hydraulically locks and holds objects in the jaw, PowerGrip allows Welch to pick up the material and place it anywhere he wants.
"PowerGrip not only improves our efficiency - since any of our operators can use this solution - it’s also safer since there's less risk of dropping material around the job site.”A durable, maintenance-friendly solution
Soon after Welch began using PowerGrip in the rainy Northwest region, he discovered that PowerGrip exceeded his expectations in terms of durability and lower maintenance.
“PowerGrip is easy to maintain with just two zerks to worry about. With PowerGrip’s fully enclosed rotary actuator hinge, worrying about nicks, dings or debris contamination to exposed cylinders and rods is a thing of the past.”
PowerGrip is equipped with a durable, enclosed rotary actuator hinge that’s ideally suited for regions with heavy rainfall. With the rotary actuator hinge technology offering 120 degrees of jaw movement, there are no exposed cylinders and rods in the bucket shell or clam that can become polluted with debris, leading to attachment malfunctions. The rotating movement is generated by the massive rotating pivot point between the jaw and back of the bucket that’s designed with the Helac sliding spline operating technology by Parker, which converts linear piston motion into powerful shaft rotation. The end caps, seals and bearings work in unison to keep debris and contaminants out of the inner workings of the actuator, prolonging life and reducing required maintenance. High strength, abrasion-resistant steel is used throughout for added durability.A flexible tool for year-round use
With the variety of tasks JJ Welch contracting required from their Kobelco 200 excavator, PowerGrip provided them with a flexible, adaptable tool to get multiple tasks done with a single machine. Built to function as a trenching, grading or clamshell bucket and for gripping and loading, JJ Welch used PowerGrip for a diverse range of tasks – placing riprap and rock, rebuilding road embankments, and cleaning up salmon streams.
This inherent flexibility allows JJ Welch Contracting to keep PowerGrip on their machine 85 percent of the time, year-round. “PowerGrip’s versatility allows our operators to save time and better utilize our materials on the job site,” states Welch.
This article was contributed by Jessica Howisey, marketing communications manager and Daniel Morgado, applications engineer, Helac Business Unit, Cylinder Division.
Mobile off-road machinery is adding more advanced features such as advanced load moment indication (LMI), automated dig routines, and GPS based excavation and grading. In addition to off-road machinery, many on-road vehicles such as transit busses and motor coaches are adding sophisticated sub-systems to support adaptive cruise control and advanced driver assistance (ADAS), hybrid and electric drives.
These new sub-systems have also added the need for more information to be made available to the operators and service technicians. The additional complexity of the sub-systems has also resulted in increased complexity of the information for these systems.Displaying dynamic information
Parker’s PHD display family is designed to keep pace with the advanced sub-systems in mobile machinery. Modern full glass LCD screens offer both the ability to display this information in a flexible and dynamic fashion, but also allows for easy to understand messages in both graphical form and in multiple languages. An example of this is showing the speed limit to the driver through the Advanced Driver Assist System. This can be shown as a graphical image of the speed limit sign, which varies by the posted speed limit, the local language, and even the format of the sign itself. Traditional instrument clusters with dial gages and telltale indicator lights are simply not capable of showing this type of dynamic, advanced information.
In addition to the ability to show dynamic information, full glass LCD screens also offer several screen configurations and options to make sure the correct information is shown at the correct time. As the status of the machine changes during operation, the information and status relevant to the operator or driver will also change. Since LCD screens allow an almost unlimited number of screens available to the operator, the correct information can be shown to the driver or operator as needed. For example, generally, the operator doesn’t need to see temperature or fluid level warnings during general operation. However, if there is a fluid level or temperature warning, a display can automatically change screens, showing the relevant fluid level amount and the warning text to bring this to the attention of the operator.Displaying information needed at the right time
This is also true for cranes with advanced Load Moment Indication systems as well as backhoes with auto-dig functionality. For a backhoe, in the normal operating mode, the display would function as a normal instrument cluster, showing engine RPM, temperature, fuel level, etc. However, when the operator enters the auto dig functionality, the screen needs to change to show the backhoe configuration, as well as bucket depth and slope. This information is dynamic in nature and needs the flexibility of a display screen to present this information to the operator.
Flexible, dynamic screens are also essential to service technicians to troubleshoot systems. As sub-systems become more sophisticated, technicians need the ability to see a wide variety of information as well as various descriptions and possible repair options. For electric traction drives, the service technician needs to not only see the fault codes and status relating to the batteries, but also information relating the motors and drives. Since these sub-systems all interrelate, the information shown to the technician is dynamic and would vary by various failure modes between the batteries, drives and motors. Having this flexibility on the screens is essential to supporting these new sub-systems in the field.Machine safety always
Safe operation is also a very important factor in today’s machinery. The ability to see around the machine is key part of overall machine safety. This has driven the demand for back-up and peripheral cameras. In order to reduce the number of screens in the cab, the ability to dynamically change the screen to show one or multiple camera views is also important.
Todays modern on and off-road equipment are implementing more sophisticated sub-systems, such as all-electric drive, auto dig, advanced LMI and ADAS systems. Full glass, mobile displays, such as Parker Hannifin’s PHD mobile displays provide the flexibility and resolution that are essential for the operation, diagnostics and support of these new, advanced sub systems.
Download Parker's Display Product Selection Guide here
Article contributed by Kirk Lola, product manager, Electronic Controls Division, Parker Hannifin Corporation.
It’s a sobering fact that many of the support structures holding up the world’s electrical grid are nearing the end of their serviceable life. After 50 or so years, wooden electric poles and corresponding cross supports inevitably rot and need replacement. When they do, power company linemen get in an insolated bucket and are hoisted by a crane as much as 50 feet in the air to repair those structures. However, many times the equipment used to hold the energized electrical lines in place while the work is done is less than ideal, creating a potentially hazardous environment.Faster and safer installation and maintenance
LinePro Equipment is a manufacturer of insulated crane and digger derrick attachments for energized transmission and distribution line maintenance. Among their products, the company’s Insulated Conductor Supports Jibs (ICSJ) temporary support energized ultra-high voltage power lines to allow faster and safer insulator and tower replacement/relocation.
“With electricity, you only get one mistake. There have been fatalities using equipment that was inadequate. Our products help to keep linemen out of harm's way.”
Larry Ewert, product designer, LinePro Equipment
In addition, the company’s LinePro HA aerial devices are configurable as a Live Line bucket truck/aerial platform device, an energized conductor support, pole setting vehicle, and a material-handling crane. “In the past, we’ve used a multi-pin hole for the buckets and the supporting conductors,” Ewart says. “Linemen used to set the position on the ground, lift it up and hope they had the right angle. If they guessed wrong, they’d have to bring it all down and set it, so it was time consuming.”
A former vehicle technician with BC Hydro, Ewart recognized the safety and productivity issues involved in the traditional multi-pin method and designed an improved aerial device that includes hydraulic actuation, so the company’s bucket truck/aerial platform devices could be repositioned in the air, by radio control. According to Ewert, precise platform positioning without drift increases safety and allows for various degrees of articulation.Rotary actuator solution
For hydraulic actuation, LinePro Equipment relies on Parker’s Helac actuators, specifically the L30-215 helical rotary actuators, which is responsible for the articulation and boom positioning. Ewart says Helac actuators provide jib storage and quick deployment not previously available. “
We can’t accomplish the same thing with cylinders because they’re too cumbersome,” he says. “Because we get the same articulation out of a compact package, Helac actuators are more efficient for what we do.” The actuator functions as a rotating device, mounting bracket, and bearing support. The large circular shaft flange with drilled and tapped bolt circle is used to attach the actuator to the jib boom.
The characteristics of the helical rotary actuator make it ideal for this platform. Parker’s L30 helical actuator series offers high load carrying, high torque output, compact configurations, and corrosion resistance in a cost-effective package with 180-degree rotation. Its sliding-spline operating concept produces output torque to 215,000 pounds per inch at 3,000 psi. At the same time, the actuator measures 23.6 inches with a 10-inch housing diameter and weighs 790 pounds.
Because the spline teeth remain engaged at all times, loads are equally distributed over the teeth, resulting in increased shock load resilience. Large integral nylon composition bearings support heavy radial, moment, and thrust loads without additional external bearings. Sealing occurs against smooth cylindrical surfaces, effectively eliminating leakage and enabling selected positions to be held without drift.
Parker’s Helac helical rotary actuator assists LinePro’s aerial devices to be safer and much more efficient. The load holding capability allows for safety with either the aerial work platform or the insulated conductor support application.
This article was contributed by Jessica Howisey, marketing communications manager and Daniel Morgado, applications engineer, Helac Business Unit, Cylinder Division and was originally published by Design Engineering.
From piercing, punching or riveting applications in the automotive industry to press applications within industrial automation, a linear actuator can be found in virtually all manufacturing sites, sharing the common goal of moving a load. Until recently hydraulics and pneumatics have been the primary options for linear actuation. Increased accuracy and energy efficiency are accelerating the trend to replace traditional hydraulics and pneumatics with electromechanical solutions, such as Parker’s XFC Series.Product features and components
Parker’s electromechanical alternative to traditional fluid powered linear actuators, the XFC Series, utilizes a planetary roller screw allowing higher load capacities, increased life and increased tolerance to shock-loading applications.
The XFC Series can support a maximum thrust load to 80,000 pounds providing a seamless substitution from hydraulic to electro-mechanical motion, while offering high levels of control and energy efficiency. Selecting a XFC Series product is easy, and can be done through Parker’s online configuratorAdvantages to switching to electromechanical
Control – When it comes to traditional fluid-powered actuators, high precision and control is hard to come by due to the standard properties of hydraulic oils and other fluid mediums. By substituting a fluid-powered actuator with Parker’s XFC, a high level of precision and control can be achieved. Utilizing the roller screw lead (linear travel per revolution), combined with the revolutions of the motor, the controller can determine the position of the actuator. In many applications it can achieve a repeatability of 0.001” or better.
Maintenance and installation – By utilizing software and monitoring the actuator’s torque within the planetary drives the controller can predict when maintenance will be required. Along those same lines, it is easier to identify abnormalities that may occur well before the point of failure preventing production downtime. Then, in the event of needing to replace a unit, the only maintenance needed to be done is dropping in the new XFC product--there are no hoses, pumps, or other hydraulic system components to worry about.
This plug-and-play ability of the XFC cuts down on installation costs and reduces system components costs of filters, pumps, hoses, etc. It is important to remember that although hydraulics may be lower cost upfront, long-term maintenance costs and higher installation costs significantly increase the total cost of ownership.
To read more about the advantages of the Parker’s XFC Series such as environmental impact, noise reduction and more, check out the case studies and information in the Parker XFC white paper from Parker's Cylinder Division.
This article was contributed by Bruce Besch, product manager, Cylinder Division