US20200181869A1 - Boom Lock - Google Patents
Boom Lock Download PDFInfo
- Publication number
- US20200181869A1 US20200181869A1 US16/213,752 US201816213752A US2020181869A1 US 20200181869 A1 US20200181869 A1 US 20200181869A1 US 201816213752 A US201816213752 A US 201816213752A US 2020181869 A1 US2020181869 A1 US 2020181869A1
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- US
- United States
- Prior art keywords
- boom
- frame
- attachment
- coupled
- boom assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
- E02F3/388—Mechanical locking means for booms or arms against rotation, e.g. during transport of the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07504—Accessories, e.g. for towing, charging, locking
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/34—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines
- E02F3/3414—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines the arms being pivoted at the rear of the vehicle chassis, e.g. skid steer loader
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3695—Arrangements for connecting dipper-arms to loaders or graders
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
- E02F3/382—Connections to the frame; Supports for booms or arms
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
- E02F3/431—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like
- E02F3/432—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like for keeping the bucket in a predetermined position or attitude
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/7609—Scraper blade mounted forwardly of the tractor on a pair of pivoting arms which are linked to the sides of the tractor, e.g. bulldozers
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/80—Component parts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/80—Component parts
- E02F3/84—Drives or control devices therefor, e.g. hydraulic drive systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/061—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks characterised by having a lifting jib
Definitions
- the present disclosure generally relates to work vehicles, such as skid steers, compact track loaders, and other agricultural and construction loaders, and more particularly to a boom lock and method for locking a boom assembly for work vehicles.
- the boom lift cylinders are commonly used.
- a work vehicle comprising a frame. At least one ground engaging device is coupled to the frame and configured to support the frame above a surface.
- a boom assembly is coupled to the frame and configured to move from a lowered position to a raised position.
- An attachment coupler is coupled to a distal portion of the boom assembly.
- At least one tilt cylinder coupled to the boom assembly and the attachment coupler.
- a boom lock is coupled to at least one of the frame and the boom assembly. The boom lock is configured to move from an unlocked position where the boom assembly is movable to a locked position where the boom assembly is locked to the frame in the lowered position.
- a boom lock for a work vehicle comprises a frame.
- a boom assembly is coupled to the frame and configured to move from a lowered position to a raised position.
- An attachment coupler is coupled to a distal portion of the boom assembly.
- At least one tilt cylinder is coupled to the boom assembly and the attachment coupler.
- the boom lock comprises a movable shaft coupled to at least one of the boom assembly and the frame.
- a receiving device is coupled to at least one of the other of the boom assembly and the frame. The receiving device is configured to receive the movable shaft.
- the boom lock is configured to move from an unlocked position where the boom assembly is movable to a locked position where the boom is locked to the frame in the lowered position.
- a method for locking a boom assembly of a work vehicle to a frame of the work vehicle comprises providing a movable shaft coupled to at least one of the boom assembly and the frame.
- the method further comprises providing a receiving device coupled to at least one of the other of the boom assembly and the frame.
- the method comprises moving the movable shaft from an unlocked position to a locked position where the receiving device receives the movable shaft.
- the method further comprises creating a load path that passes through the attachment, the attachment coupler, the boom assembly, the movable shaft, the receiving device, and the frame.
- FIG. 1 is a perspective view of a work vehicle with a boom lock.
- FIG. 2A is a schematic of a work vehicle control of the work vehicle of FIG. 1 in a standard configuration.
- FIG. 2B is a schematic of a work vehicle control of the work vehicle of FIG. 1 in an updated configuration.
- FIG. 3 is a perspective view of the work vehicle of FIG. 1 with a boom assembly in a lowered position and a raised position.
- FIG. 4 is a side view of a work vehicle with a dozer blade.
- FIG. 5A is a bottom view of the work vehicle of FIG. 1 , showing the boom lock according to one embodiment.
- FIG. 5B is a bottom view of the work vehicle of FIG. 1 , showing the boom lock according to another embodiment.
- FIG. 5C is a bottom view of the work vehicle of FIG. 1 , showing the boom lock according to yet another embodiment.
- FIG. 6A is a perspective view of a work vehicle with forks.
- FIG. 6B is a perspective view of a work vehicle with a trencher.
- FIG. 7 is a perspective view of the work vehicle of FIG. 1 , showing the boom assembly in a dump position.
- FIG. 8 is a schematic of the work vehicle with the boom lock.
- FIG. 9A is a schematic of an illustrative method for locking a boom assembly of a work vehicle to a frame of the work vehicle.
- FIG. 9B is a schematic of an illustrative method for maintaining a cutting edge on a cutting plane in both an operating position and a dump position of a work vehicle.
- lists with elements that are separated by conjunctive terms (e.g., “and”) and that are also preceded by the phrase “at least one of” or “one or more of” indicate configurations or arrangements that potentially include individual elements of the list, or any combination thereof.
- “at least one of A, B, and C” or “one or more of A, B, and C” indicates the possibilities of only A, only B, only C, or any combination of two or more of A, B, and C (e.g., A and B; B and C; A and C; or A, B, and C).
- FIG. 1 illustrates a work vehicle 10 having a frame 15 .
- the work vehicle 10 is illustrated as a compact track loader 20 .
- Other types of work vehicles 10 are contemplated by this disclosure including skid steers and other types of agricultural, construction, or forestry loaders, for example.
- At least one ground engaging device 25 is coupled to the frame 15 and configured to support the frame 15 above a surface 30 and to move the work vehicle 10 along the surface 30 .
- the illustrated ground engaging device 25 is a pair of tracks 35 .
- the ground engaging device 25 may be wheels (not shown).
- An operator's station 40 having a door 45 is coupled to the frame 15 .
- An operator interface 50 may be positioned in the operator's station 40 or remote from the work vehicle 10 .
- the operator interface 50 may be a display 55 that may comprise an operator input device 60 configured to set or change a work vehicle setting or parameter 65 ( FIG. 8 ) such as a grade command 70 ( FIG. 8 ).
- the display 55 may be a touch screen 75 .
- the operator input device 60 may be separate from the display 55 .
- the operator input device 60 may be a keypad 80 or a sealed switch module (“SSM”) 85 .
- SSM sealed switch module
- a work vehicle control 90 may also be positioned in the operator's station 40 or remote from the work vehicle 10 .
- the work vehicle control 90 may include a first joystick 95 , a second joystick 100 , and any combination of a plurality of switches 102 (e.g., rotary wheel) and a plurality of buttons 103 (e.g., pushbutton) or other control devices (e.g., dials, knobs).
- the first joystick 95 may have the plurality of buttons 103 and the second joystick 100 having a switch 102 and the plurality of buttons 103 .
- Other switch 102 and button 103 configurations are contemplated by this disclosure.
- the functions of the work vehicle control 90 may be re-assignable from a standard configuration 105 to an updated configuration 110 .
- a standard configuration 105 like a compact track loader mode 115 to an updated configuration 110 like a dozer mode 120 or other mode (e.g., fork mode, trencher mode).
- the first joystick 95 may have the same operation and functions: push the first joystick 95 forward for forward 125 movement of the work vehicle 10 , push the first joystick 95 rearward for reverse 130 movement of the work vehicle 10 , push the first joystick 95 right to turn right 135 , and push the first joystick 95 left to turn left 140 .
- the second joystick 100 may have the same operation and functions: push the second joystick 100 forward for boom down 145 , push the second joystick 100 rearward for boom up 150 , push the second joystick 100 right for bucket down 155 , and push the second joystick 100 left for bucket up 160 .
- the second joystick 100 may have the same operation and functions: push the second joystick 100 forward for blade down 165 , push the second joystick 100 rearward for blade up 170 , push the second joystick 100 right for blade tilt right 175 , push the second joystick 100 left for blade tilt left 180 , push the switch 102 forward for blade angle right 185 , and push the switch 102 rearward for blade angle left 190 .
- a boom assembly 195 is coupled to the frame 15 .
- the boom assembly 195 comprises a pair of upper links 200 pivotally coupled to the frame 15 .
- a pair of lower links 205 are pivotally coupled to the frame 15 .
- a pair of boom cylinders 210 are pivotally coupled to the frame 15 with one per side of the work vehicle 10 .
- the boom cylinders 210 may be hydraulic actuators 215 or electronic actuators 220 .
- a pair of boom arms 225 are pivotally coupled to the upper links 200 and the lower links 205 and positioned one per side of the work vehicle 10 .
- the pair of boom arms 225 are pivotally coupled to the boom cylinders 210 .
- the boom cylinders 210 are configured to move the boom assembly 195 from a lowered position 230 to a raised position 235 .
- Other boom assembly 195 configurations are contemplated by this disclosure.
- a boom position sensor 240 is coupled to at least one of the frame 15 , the boom assembly 195 , and the boom cylinder 210 .
- the boom position sensor 240 is configured to transmit a boom position signal 245 ( FIG. 8 ) indicative of a position of the boom assembly 195 .
- the boom position sensor 240 may be a rotary sensor, cylinder position sensor, or other type of sensor.
- an attachment coupler 250 is coupled to a distal portion 255 of the boom assembly 195 .
- a pair of tilt cylinders 260 are coupled to the boom assembly 195 and the attachment coupler 250 with one per side of the work vehicle 10 .
- the tilt cylinders 260 may be hydraulic actuators 265 or electronic actuators 270 .
- the tilt cylinders 260 are configured to move or tilt the attachment coupler 250 .
- a hydraulic system 275 is fluidly coupled to the boom cylinders 210 and the tilt cylinders 260 .
- the hydraulic system 275 comprises a hydraulic pump 280 and a hydraulic valve 285 (e.g., electrohydraulic valve) to control hydraulic fluid flow to the boom cylinders 210 and tilt cylinders 260 after receiving input from at least one of the operator interface 50 and the work vehicle control 90 .
- a hydraulic valve 285 e.g., electrohydraulic valve
- the second joystick 100 that controlled the boom cylinders 210 in the forward boom down 145 and reverse boom up 150 directions in the compact track loader mode 115 may now be changed to control the tilt cylinders 260 in the forward blade down 165 and reverse blade up 170 directions in the dozer mode 120 .
- This disclosure contemplates other aspects of the hydraulic system 275 may be controlled by other changes to the first joystick 95 , the second joystick 100 , switches 102 , and buttons 103 .
- a boom lock 290 may be coupled to at least one of the frame 15 and the boom assembly 195 .
- the boom lock 290 is configured to move from an unlocked position 295 where the boom assembly 195 is movable to a locked position 300 where the boom assembly 195 is locked to the frame 15 in the lowered position 230 ( FIG. 3 ).
- the boom lock 290 may comprise a receiving device 305 coupled to at least one of the boom assembly 195 and the frame 15 .
- the receiving device 305 is configured to receive a movable shaft 310 (e.g., sliding shaft, rotating shaft) coupled to at least one of the other of the boom assembly 195 and the frame 15 .
- the receiving device 305 may be configured to receive a sliding block 315 or a rotating latch 320 or wedge 325 .
- the movable shaft 310 may be a hydraulic actuator 330 or an electronic actuator 335 .
- an attachment 340 may be coupled to the attachment coupler 250 .
- the attachment 340 may be a bucket 345 , a dozer blade 350 , forks 355 , trencher 360 , or other attachment 340 (e.g., grapple, auger).
- the attachment 340 may comprise a cutting edge 365 ( FIG. 1 ).
- an attachment position sensor 370 may be coupled to at least one of the boom assembly 195 , the attachment coupler 250 , and the tilt cylinder 260 and configured to transmit an attachment position signal 375 ( FIG. 8 ) indicative of a position of the attachment coupler 250 .
- the attachment position sensor 370 may be a rotary sensor, cylinder position sensor, or other type of sensor.
- An inertial measurement unit (“IMU”) 380 or a slope sensor 385 may be coupled to the attachment 340 and configured to transmit a slope signal 390 ( FIG. 8 ) indicative of a slope of the attachment 340 relative to the frame 15 or the surface 30 .
- Slope corresponds with the blade tilt right 175 and blade tilt left 180 in the updated configuration 110 ( FIG. 2B ) and dozer mode 120 ( FIG. 2B ).
- an identification device 395 may be coupled to the attachment 340 and configured to transmit an attachment identification signal 400 after an activation event 405 .
- the identification device 395 may be a beacon assembly 410 .
- the attachment identification signal 400 may comprise attachment dimensions 415 .
- the activation event 405 may comprise the work vehicle 10 contacting the attachment 340 with a minimum force where the attachment 340 remains stationary.
- the activation event 405 may comprise the identification device 395 receiving an activation signal 420 from an activation sensor 425 coupled to the work vehicle 10 .
- the operator interface 50 or display 55 may be communicatively coupled to the identification device 395 and configured to display the attachment identification signal 400 .
- the operator interface 50 , display 55 , or the operator input device 60 may be configured to receive an operator input indicative of an attachment confirmation 430 and the grade command 70 .
- the operator interface 50 or display 55 may show the attachment identification signals 400 of the attachments 340 in order of the strength of the attachment identification signals 400 starting with the strongest signal of the various signals coming from a variety of attachments 340 .
- the operator interface 50 or display 55 may also show the attachment identification signals 400 of the attachments 340 starting with the most recently used or previously used attachments 340 .
- Other attachment identification signal 400 display orders are contemplated by this disclosure.
- a positioning receiver 435 may be coupled to the frame 15 or operator's station 40 and configured to receive a geospatial positioning signal 440 (“GPS”) (e.g., GNSS, GLONASS) to locate a position of the work vehicle 10 .
- GPS geospatial positioning signal 440
- a grade control system 445 may be communicatively coupled to the operator input device 60 and configured to receive the grade command 70 and define a cutting plane 450 .
- the grade control system 445 may be a laser 455 coupled to the frame 15 and configured to receive the grade command 70 and project the cutting plane 450 on the surface 30 .
- the grade control system 445 may be an internal on-board system 460 that does not project the cutting plane 450 but is communicatively coupled to the operator input device 60 and configured to receive the grade command 70 .
- a controller 465 may be coupled to the work vehicle 10 .
- the controller 465 may be configured to receive an operator signal 470 from the operator interface 50 , transmit a boom lower signal 475 to the hydraulic system 275 to lower the boom assembly 195 to the frame 15 , and transmit a boom lock signal 480 to a hydraulic actuator 330 or an electronic actuator 335 of the boom lock 290 to move the boom lock 290 to the locked position 300 ( FIGS. 5A, 5B, 5C ) after the boom assembly 195 is lowered to the frame 15 .
- the controller 465 may receive and send signals wirelessly (e.g., Bluetooth) via a work vehicle wireless communication device 485 or by way of a communication bus 490 .
- the controller 465 may comprise an electronic data processor 495 .
- the electronic data processor 495 may be arranged locally as a part of the work vehicle 10 or remotely away from the work vehicle 10 .
- the electronic data processor 495 may comprise a microprocessor, a microcontroller, a central processing unit, a programmable logic array, a programmable logic controller, an application specific integrated circuit, a logic circuit, an arithmetic logic unit, or other suitable programmable circuitry that is adapted to perform data processing and/or system control operations.
- the electronic data processor 495 can manage the transfer of data to and from a remote processing system via a network and wireless infrastructure.
- the electronic data processor can collect and process signal data from the communication bus 490 for transmission either in a forward or rearward direction (i.e., to or from the remote processing system).
- a memory device 500 stores information and data for access by the electronic data processor 495 , the communication bus 490 , or the vehicle wireless communication device 485 .
- the memory device 500 may comprise electronic memory, nonvolatile random-access memory, an optical storage device, a magnetic storage device, or another device for storing and accessing electronic data on any recordable, rewritable, or readable electronic, optical, or magnetic storage medium.
- the controller 465 may be configured to receive the geospatial positioning signal 440 from the positioning receiver 435 , the boom position signal 245 , the attachment position signal 375 , the operator signal 470 or input, and reference the memory device 500 and change the work vehicle control 90 between the standard configuration 105 and the updated configuration 110 .
- the controller 465 may be configured to control an elevation of the attachment 340 according to the grade command 70 by controlling the hydraulic system 275 .
- the controller 465 may be configured to receive the geospatial positioning signal 440 from the positioning receiver 435 , the boom position signal 245 , the attachment position signal 375 , the slope signal 390 , the attachment identification signal 400 , the operator signal 470 or input, and change the work vehicle control 90 between the standard configuration 105 and the updated configuration 110 .
- the controller 465 may be configured to control an elevation and a slope of the attachment 340 according to the grade command 70 .
- the controller 465 may be configured to control the hydraulic system 275 to control the elevation and the slope of the attachment 340 according to the grade command 70 .
- the controller 465 may be configured to control the hydraulic system 275 to maintain the cutting edge 365 on the cutting plane 450 .
- the controller 465 may be configured to receive the boom position signal 245 , the attachment position signal 375 , and the grade command 70 , and maintain the cutting edge 365 on the cutting plane 450 in both an operating position 505 ( FIG. 3 ) and a dump position 510 ( FIG. 7 ).
- an operator may enter the operator's station 40 or access the work vehicle 10 remotely via the work vehicle wireless communication device 485 or the communication bus 490 .
- the operator may turn on the work vehicle 10 with the operator input device 60 such as the SSM 85 .
- the operator may move the work vehicle 10 towards an attachment 340 using the work vehicle control 90 .
- the activation event 405 occurs and the identification device 395 sends the attachment identification signal 400 .
- the activation event 405 may occur when the activation sensor 425 sends the activation signal 420 to the identification device 395 causing the identification device 395 to send the attachment identification signal 400 .
- the operator interface 50 or display 55 may show the attachment identification signal 400 or, if more than attachment 340 is present with the identification devices 395 activated, the operator interface 50 or display 55 may show the attachment identification signals 400 in order of strength of the attachment identification signals 400 starting with the strongest signal representing the closest attachment 340 to the work vehicle 10 .
- the operator would position the work vehicle 10 to couple to the attachment 340 .
- the operator interface 50 or display 55 may request the operator to provide the operator input indicative of the attachment confirmation 430 or the grade command 70 .
- the operator interface 50 or display 55 may show the attachment dimensions 415 and the type of attachment 340 such as the bucket 345 , dozer blade 350 , the forks 355 , the trencher 360 , or other attachment 340 (e.g., grapple, auger) as a part of the attachment confirmation 430 .
- the operator may enter the operator input with the display 55 or the operator input device 60 .
- the operator may lock the boom assembly 195 to the frame 15 with the boom lock 290 .
- the operator may activate the boom lock 290 by entering the operator input with the operator interface 50 or display 55 or the operator input device 60 causing the controller 465 to receive the operator signal 470 .
- the controller 465 may transmit the boom lower signal to the hydraulic system 275 to lower the boom assembly 195 to the frame 15 .
- the controller 465 may transmit the boom lock signal 480 to the hydraulic actuator 330 or the electronic actuator 335 to move the boom lock 290 to the locked position 300 .
- the operator may provide operator input to the operator interface 50 or the operator input device 60 to select dozer mode 120 thus reconfiguring the work vehicle control 90 to be more like that of a standard dozer or crawler.
- the tilt cylinders 260 are configured to move or tilt the attachment 340 in both the unlocked position 295 and the locked position 300 .
- the tilt cylinders 260 may raise the attachment 340 off of the surface 30 .
- the tilt cylinders 260 may move the attachment 340 from the operating position 505 to the dump position 510 .
- the attachment 340 may be rotated to maintain the cutting edge 365 on the cutting plane 450 .
- the bucket 345 may be configured to dump and spread contents or a material in the dump position 510 .
- the standard configuration 105 may be for controlling the bucket 345 and the updated configuration 110 may be for controlling the dozer blade 350 or other attachments 340 .
- the grade control system 445 may receive the grade command 70 and define the cutting plane 450 .
- the controller 465 may receive the grade command, the geospatial positioning signal 440 , the boom position signal 245 , the attachment position signal 375 , and the slope signal 390 , to automatically control the elevation and slope of the attachment 340 as the work vehicle 10 traverses the surface 30 .
- FIG. 9A A method for locking a boom assembly 195 of a work vehicle 10 to a frame 15 of the work vehicle 10 is illustrated in FIG. 9A .
- the boom assembly 195 is coupled to an attachment coupler 250 that is coupled to an attachment 340 .
- the method further comprises providing a movable shaft 310 coupled to at least one of the boom assembly 195 and the frame 15 , providing a receiving device 305 coupled to at least one of the other of the boom assembly 195 and the frame 15 , moving the movable shaft 310 from an unlocked position 295 to a locked position 300 where the receiving device 305 receives the movable shaft 310 .
- the method comprises creating a load path 515 that passes through the attachment 340 , the attachment coupler 250 , the boom assembly 195 , the movable shaft 310 , the receiving device 305 , and the frame 15 .
- Step 535 the method further comprises providing a controller 465 to receive an operator signal 470 from an operator interface 50 positioned in an operator's station 40 coupled to the frame 15 , transmitting a boom lower signal 475 to a hydraulic system 275 configured to lower the boom assembly 195 to the frame 15 , and transmitting a boom lock signal 480 to a hydraulic actuator 330 or an electronic actuator 335 to cause the receiving device 305 to receive the movable shaft 310 .
- Step 540 the method comprises the attachment 340 is a dozer blade 350 and the load path 515 passes through the dozer blade 350 , the attachment coupler 250 , the boom assembly 195 , the movable shaft 310 , the receiving device 305 , and the frame 15 .
- Step 545 the method further comprises tilting the attachment 340 with at least one tilt cylinder 260 coupled to the boom assembly 195 and the attachment coupler 250 to raise the attachment 340 from a surface 30 without changing the load path 515 .
- Step 550 the method comprises providing a work vehicle 10 comprising a frame 15 , a boom assembly 195 coupled to the frame 15 , an attachment coupler 250 coupled to a distal portion 255 of the boom assembly 195 , and an attachment 340 coupled to the attachment coupler 250 .
- Step 555 the method further comprises receiving a boom position signal 245 indicative of a position of the boom assembly 195 , receiving an attachment position signal 375 indicative of a position of the attachment coupler 250 , receiving a grade command 70 and defining a cutting plane 450 , and maintaining the cutting edge 365 on the cutting plane 450 .
- Step 560 the method comprises maintaining the cutting edge 365 on the cutting plane 450 in the dump position 510 by rotating the attachment 340 .
Abstract
A work vehicle comprises a frame. At least one ground engaging device is coupled to the frame and configured to support the frame above a surface. A boom assembly is coupled to the frame and configured to move from a lowered position to a raised position. An attachment coupler is coupled to a distal portion of the boom assembly. At least one tilt cylinder coupled to the boom assembly and the attachment coupler. A boom lock is coupled to at least one of the frame and the boom assembly. The boom lock is configured to move from an unlocked position where the boom assembly is movable to a locked position where the boom assembly is locked to the frame in the lowered position.
Description
- The present disclosure generally relates to work vehicles, such as skid steers, compact track loaders, and other agricultural and construction loaders, and more particularly to a boom lock and method for locking a boom assembly for work vehicles.
- In order to raise an attachment coupled to a boom of a work vehicle, the boom lift cylinders are commonly used. In order to perform maintenance, it is common to apply a hydraulic cylinder lock to maintain the boom in a raised position.
- In one embodiment, a work vehicle is disclosed. The work vehicle comprises a frame. At least one ground engaging device is coupled to the frame and configured to support the frame above a surface. A boom assembly is coupled to the frame and configured to move from a lowered position to a raised position. An attachment coupler is coupled to a distal portion of the boom assembly. At least one tilt cylinder coupled to the boom assembly and the attachment coupler. A boom lock is coupled to at least one of the frame and the boom assembly. The boom lock is configured to move from an unlocked position where the boom assembly is movable to a locked position where the boom assembly is locked to the frame in the lowered position.
- In another embodiment, a boom lock for a work vehicle is disclosed. The boom lock comprises a frame. A boom assembly is coupled to the frame and configured to move from a lowered position to a raised position. An attachment coupler is coupled to a distal portion of the boom assembly. At least one tilt cylinder is coupled to the boom assembly and the attachment coupler. The boom lock comprises a movable shaft coupled to at least one of the boom assembly and the frame. A receiving device is coupled to at least one of the other of the boom assembly and the frame. The receiving device is configured to receive the movable shaft. The boom lock is configured to move from an unlocked position where the boom assembly is movable to a locked position where the boom is locked to the frame in the lowered position.
- In yet another embodiment, a method for locking a boom assembly of a work vehicle to a frame of the work vehicle is disclosed. The boom assembly is coupled to an attachment coupler that is coupled to an attachment. The method comprises providing a movable shaft coupled to at least one of the boom assembly and the frame. The method further comprises providing a receiving device coupled to at least one of the other of the boom assembly and the frame. The method comprises moving the movable shaft from an unlocked position to a locked position where the receiving device receives the movable shaft. The method further comprises creating a load path that passes through the attachment, the attachment coupler, the boom assembly, the movable shaft, the receiving device, and the frame.
- Other features and aspects will become apparent by consideration of the detailed description and accompanying drawings.
-
FIG. 1 is a perspective view of a work vehicle with a boom lock. -
FIG. 2A is a schematic of a work vehicle control of the work vehicle ofFIG. 1 in a standard configuration. -
FIG. 2B is a schematic of a work vehicle control of the work vehicle ofFIG. 1 in an updated configuration. -
FIG. 3 is a perspective view of the work vehicle ofFIG. 1 with a boom assembly in a lowered position and a raised position. -
FIG. 4 is a side view of a work vehicle with a dozer blade. -
FIG. 5A is a bottom view of the work vehicle ofFIG. 1 , showing the boom lock according to one embodiment. -
FIG. 5B is a bottom view of the work vehicle ofFIG. 1 , showing the boom lock according to another embodiment. -
FIG. 5C is a bottom view of the work vehicle ofFIG. 1 , showing the boom lock according to yet another embodiment. -
FIG. 6A is a perspective view of a work vehicle with forks. -
FIG. 6B is a perspective view of a work vehicle with a trencher. -
FIG. 7 is a perspective view of the work vehicle ofFIG. 1 , showing the boom assembly in a dump position. -
FIG. 8 is a schematic of the work vehicle with the boom lock. -
FIG. 9A is a schematic of an illustrative method for locking a boom assembly of a work vehicle to a frame of the work vehicle. -
FIG. 9B is a schematic of an illustrative method for maintaining a cutting edge on a cutting plane in both an operating position and a dump position of a work vehicle. - Before any embodiments are explained in detail, it is to be understood that the disclosure is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The disclosure is capable of other embodiments and of being practiced or of being carried out in various ways. Further embodiments of the invention may include any combination of features from one or more dependent claims, and such features may be incorporated, collectively or separately, into any independent claim.
- As used herein, unless otherwise limited or modified, lists with elements that are separated by conjunctive terms (e.g., “and”) and that are also preceded by the phrase “at least one of” or “one or more of” indicate configurations or arrangements that potentially include individual elements of the list, or any combination thereof. For example, “at least one of A, B, and C” or “one or more of A, B, and C” indicates the possibilities of only A, only B, only C, or any combination of two or more of A, B, and C (e.g., A and B; B and C; A and C; or A, B, and C).
-
FIG. 1 illustrates awork vehicle 10 having aframe 15. Thework vehicle 10 is illustrated as acompact track loader 20. Other types ofwork vehicles 10 are contemplated by this disclosure including skid steers and other types of agricultural, construction, or forestry loaders, for example. At least one groundengaging device 25 is coupled to theframe 15 and configured to support theframe 15 above asurface 30 and to move thework vehicle 10 along thesurface 30. The illustrated groundengaging device 25 is a pair oftracks 35. Alternatively, theground engaging device 25 may be wheels (not shown). - An operator's
station 40 having adoor 45 is coupled to theframe 15. Anoperator interface 50 may be positioned in the operator'sstation 40 or remote from thework vehicle 10. Theoperator interface 50 may be adisplay 55 that may comprise anoperator input device 60 configured to set or change a work vehicle setting or parameter 65 (FIG. 8 ) such as a grade command 70 (FIG. 8 ). For example, thedisplay 55 may be atouch screen 75. Theoperator input device 60 may be separate from thedisplay 55. For example, theoperator input device 60 may be akeypad 80 or a sealed switch module (“SSM”) 85. - A
work vehicle control 90 may also be positioned in the operator'sstation 40 or remote from thework vehicle 10. With reference toFIGS. 2A and 2B , thework vehicle control 90 may include afirst joystick 95, asecond joystick 100, and any combination of a plurality of switches 102 (e.g., rotary wheel) and a plurality of buttons 103 (e.g., pushbutton) or other control devices (e.g., dials, knobs). For example, thefirst joystick 95 may have the plurality ofbuttons 103 and thesecond joystick 100 having aswitch 102 and the plurality ofbuttons 103.Other switch 102 andbutton 103 configurations are contemplated by this disclosure. The functions of thework vehicle control 90 may be re-assignable from astandard configuration 105 to an updatedconfiguration 110. For example, from astandard configuration 105 like a compacttrack loader mode 115 to an updatedconfiguration 110 like adozer mode 120 or other mode (e.g., fork mode, trencher mode). - In the
standard configuration 105, the updatedconfiguration 110, the compacttrack loader mode 115, and thedozer mode 120, thefirst joystick 95 may have the same operation and functions: push thefirst joystick 95 forward for forward 125 movement of thework vehicle 10, push thefirst joystick 95 rearward forreverse 130 movement of thework vehicle 10, push thefirst joystick 95 right to turn right 135, and push thefirst joystick 95 left to turn left 140. - In the
standard configuration 105 and the compacttrack loader mode 115, thesecond joystick 100 may have the same operation and functions: push thesecond joystick 100 forward for boom down 145, push thesecond joystick 100 rearward for boom up 150, push thesecond joystick 100 right for bucket down 155, and push thesecond joystick 100 left for bucket up 160. - In the updated
configuration 110 and thedozer mode 120, thesecond joystick 100 may have the same operation and functions: push thesecond joystick 100 forward for blade down 165, push thesecond joystick 100 rearward for blade up 170, push thesecond joystick 100 right for blade tilt right 175, push thesecond joystick 100 left for blade tilt left 180, push theswitch 102 forward for blade angle right 185, and push theswitch 102 rearward for blade angle left 190. - Referring to
FIG. 1 , aboom assembly 195 is coupled to theframe 15. Theboom assembly 195 comprises a pair ofupper links 200 pivotally coupled to theframe 15. A pair oflower links 205 are pivotally coupled to theframe 15. A pair ofboom cylinders 210 are pivotally coupled to theframe 15 with one per side of thework vehicle 10. Theboom cylinders 210 may behydraulic actuators 215 orelectronic actuators 220. A pair ofboom arms 225 are pivotally coupled to theupper links 200 and thelower links 205 and positioned one per side of thework vehicle 10. The pair ofboom arms 225 are pivotally coupled to theboom cylinders 210. With reference toFIGS. 1 and 3 , theboom cylinders 210 are configured to move theboom assembly 195 from a loweredposition 230 to a raisedposition 235.Other boom assembly 195 configurations are contemplated by this disclosure. - Referring to
FIG. 1 , aboom position sensor 240 is coupled to at least one of theframe 15, theboom assembly 195, and theboom cylinder 210. Theboom position sensor 240 is configured to transmit a boom position signal 245 (FIG. 8 ) indicative of a position of theboom assembly 195. Theboom position sensor 240 may be a rotary sensor, cylinder position sensor, or other type of sensor. - With reference to
FIG. 4 , anattachment coupler 250 is coupled to adistal portion 255 of theboom assembly 195. A pair oftilt cylinders 260 are coupled to theboom assembly 195 and theattachment coupler 250 with one per side of thework vehicle 10. Thetilt cylinders 260 may behydraulic actuators 265 orelectronic actuators 270. Thetilt cylinders 260 are configured to move or tilt theattachment coupler 250. - Referring to
FIGS. 1 and 4 , ahydraulic system 275 is fluidly coupled to theboom cylinders 210 and thetilt cylinders 260. Thehydraulic system 275 comprises ahydraulic pump 280 and a hydraulic valve 285 (e.g., electrohydraulic valve) to control hydraulic fluid flow to theboom cylinders 210 andtilt cylinders 260 after receiving input from at least one of theoperator interface 50 and thework vehicle control 90. With reference toFIGS. 2A, 2B, and 4 , in the updatedconfiguration 110 the functions of thefirst joystick 95, thesecond joystick 100, theswitches 102, and thebuttons 103 may be changed to control different aspects of thehydraulic system 275. For example, thesecond joystick 100 that controlled theboom cylinders 210 in the forward boom down 145 and reverse boom up 150 directions in the compacttrack loader mode 115 may now be changed to control thetilt cylinders 260 in the forward blade down 165 and reverse blade up 170 directions in thedozer mode 120. This disclosure contemplates other aspects of thehydraulic system 275 may be controlled by other changes to thefirst joystick 95, thesecond joystick 100, switches 102, andbuttons 103. - With reference to
FIGS. 5A, 5B, and 5C , aboom lock 290 may be coupled to at least one of theframe 15 and theboom assembly 195. Theboom lock 290 is configured to move from anunlocked position 295 where theboom assembly 195 is movable to a lockedposition 300 where theboom assembly 195 is locked to theframe 15 in the lowered position 230 (FIG. 3 ). Theboom lock 290 may comprise a receivingdevice 305 coupled to at least one of theboom assembly 195 and theframe 15. The receivingdevice 305 is configured to receive a movable shaft 310 (e.g., sliding shaft, rotating shaft) coupled to at least one of the other of theboom assembly 195 and theframe 15. In some embodiments, the receivingdevice 305 may be configured to receive a slidingblock 315 or arotating latch 320 orwedge 325. Themovable shaft 310 may be ahydraulic actuator 330 or anelectronic actuator 335. - Referring to
FIGS. 1, 4, 5A, 5B, 5C, 6A and 6B , anattachment 340 may be coupled to theattachment coupler 250. Theattachment 340 may be abucket 345, adozer blade 350,forks 355,trencher 360, or other attachment 340 (e.g., grapple, auger). Theattachment 340 may comprise a cutting edge 365 (FIG. 1 ). - With reference to
FIG. 4 , anattachment position sensor 370 may be coupled to at least one of theboom assembly 195, theattachment coupler 250, and thetilt cylinder 260 and configured to transmit an attachment position signal 375 (FIG. 8 ) indicative of a position of theattachment coupler 250. Theattachment position sensor 370 may be a rotary sensor, cylinder position sensor, or other type of sensor. - An inertial measurement unit (“IMU”) 380 or a
slope sensor 385 may be coupled to theattachment 340 and configured to transmit a slope signal 390 (FIG. 8 ) indicative of a slope of theattachment 340 relative to theframe 15 or thesurface 30. Slope corresponds with the blade tilt right 175 and blade tilt left 180 in the updated configuration 110 (FIG. 2B ) and dozer mode 120 (FIG. 2B ). - With reference to
FIGS. 1 and 8 , anidentification device 395 may be coupled to theattachment 340 and configured to transmit anattachment identification signal 400 after anactivation event 405. Theidentification device 395 may be abeacon assembly 410. Theattachment identification signal 400 may compriseattachment dimensions 415. Theactivation event 405 may comprise thework vehicle 10 contacting theattachment 340 with a minimum force where theattachment 340 remains stationary. Alternatively, theactivation event 405 may comprise theidentification device 395 receiving anactivation signal 420 from anactivation sensor 425 coupled to thework vehicle 10. Theoperator interface 50 ordisplay 55 may be communicatively coupled to theidentification device 395 and configured to display theattachment identification signal 400. Theoperator interface 50,display 55, or theoperator input device 60 may be configured to receive an operator input indicative of anattachment confirmation 430 and thegrade command 70. Theoperator interface 50 ordisplay 55 may show the attachment identification signals 400 of theattachments 340 in order of the strength of the attachment identification signals 400 starting with the strongest signal of the various signals coming from a variety ofattachments 340. Theoperator interface 50 ordisplay 55 may also show the attachment identification signals 400 of theattachments 340 starting with the most recently used or previously usedattachments 340. Otherattachment identification signal 400 display orders are contemplated by this disclosure. - A
positioning receiver 435 may be coupled to theframe 15 or operator'sstation 40 and configured to receive a geospatial positioning signal 440 (“GPS”) (e.g., GNSS, GLONASS) to locate a position of thework vehicle 10. - A
grade control system 445 may be communicatively coupled to theoperator input device 60 and configured to receive thegrade command 70 and define a cuttingplane 450. Thegrade control system 445 may be alaser 455 coupled to theframe 15 and configured to receive thegrade command 70 and project the cuttingplane 450 on thesurface 30. Alternatively, thegrade control system 445 may be an internal on-board system 460 that does not project the cuttingplane 450 but is communicatively coupled to theoperator input device 60 and configured to receive thegrade command 70. - A
controller 465 may be coupled to thework vehicle 10. In dozer mode 120 (FIG. 2B ), thecontroller 465 may be configured to receive anoperator signal 470 from theoperator interface 50, transmit a boomlower signal 475 to thehydraulic system 275 to lower theboom assembly 195 to theframe 15, and transmit aboom lock signal 480 to ahydraulic actuator 330 or anelectronic actuator 335 of theboom lock 290 to move theboom lock 290 to the locked position 300 (FIGS. 5A, 5B, 5C ) after theboom assembly 195 is lowered to theframe 15. Thecontroller 465 may receive and send signals wirelessly (e.g., Bluetooth) via a work vehiclewireless communication device 485 or by way of a communication bus 490. Thecontroller 465 may comprise anelectronic data processor 495. - The
electronic data processor 495 may be arranged locally as a part of thework vehicle 10 or remotely away from thework vehicle 10. In various embodiments, theelectronic data processor 495 may comprise a microprocessor, a microcontroller, a central processing unit, a programmable logic array, a programmable logic controller, an application specific integrated circuit, a logic circuit, an arithmetic logic unit, or other suitable programmable circuitry that is adapted to perform data processing and/or system control operations. In other embodiments, theelectronic data processor 495 can manage the transfer of data to and from a remote processing system via a network and wireless infrastructure. For example, the electronic data processor can collect and process signal data from the communication bus 490 for transmission either in a forward or rearward direction (i.e., to or from the remote processing system). - A
memory device 500 stores information and data for access by theelectronic data processor 495, the communication bus 490, or the vehiclewireless communication device 485. Thememory device 500 may comprise electronic memory, nonvolatile random-access memory, an optical storage device, a magnetic storage device, or another device for storing and accessing electronic data on any recordable, rewritable, or readable electronic, optical, or magnetic storage medium. - For two-dimensional automatic control of the
attachment 340, thecontroller 465 may be configured to receive thegeospatial positioning signal 440 from thepositioning receiver 435, theboom position signal 245, the attachment position signal 375, theoperator signal 470 or input, and reference thememory device 500 and change thework vehicle control 90 between thestandard configuration 105 and the updatedconfiguration 110. Thecontroller 465 may be configured to control an elevation of theattachment 340 according to thegrade command 70 by controlling thehydraulic system 275. - Alternatively, for three-dimensional automatic control of the
attachment 340, thecontroller 465 may be configured to receive thegeospatial positioning signal 440 from thepositioning receiver 435, theboom position signal 245, the attachment position signal 375, theslope signal 390, theattachment identification signal 400, theoperator signal 470 or input, and change thework vehicle control 90 between thestandard configuration 105 and the updatedconfiguration 110. Thecontroller 465 may be configured to control an elevation and a slope of theattachment 340 according to thegrade command 70. - The
controller 465 may be configured to control thehydraulic system 275 to control the elevation and the slope of theattachment 340 according to thegrade command 70. Thecontroller 465 may be configured to control thehydraulic system 275 to maintain thecutting edge 365 on the cuttingplane 450. Thecontroller 465 may be configured to receive theboom position signal 245, the attachment position signal 375, and thegrade command 70, and maintain thecutting edge 365 on the cuttingplane 450 in both an operating position 505 (FIG. 3 ) and a dump position 510 (FIG. 7 ). - In operation, an operator may enter the operator's
station 40 or access thework vehicle 10 remotely via the work vehiclewireless communication device 485 or the communication bus 490. The operator may turn on thework vehicle 10 with theoperator input device 60 such as theSSM 85. The operator may move thework vehicle 10 towards anattachment 340 using thework vehicle control 90. When thework vehicle 10 contacts, but before it moves theattachment 340, theactivation event 405 occurs and theidentification device 395 sends theattachment identification signal 400. Alternatively, theactivation event 405 may occur when theactivation sensor 425 sends theactivation signal 420 to theidentification device 395 causing theidentification device 395 to send theattachment identification signal 400. Theoperator interface 50 ordisplay 55 may show theattachment identification signal 400 or, if more thanattachment 340 is present with theidentification devices 395 activated, theoperator interface 50 ordisplay 55 may show the attachment identification signals 400 in order of strength of the attachment identification signals 400 starting with the strongest signal representing theclosest attachment 340 to thework vehicle 10. - The operator would position the
work vehicle 10 to couple to theattachment 340. After theattachment 340 is coupled to thework vehicle 10, theoperator interface 50 ordisplay 55 may request the operator to provide the operator input indicative of theattachment confirmation 430 or thegrade command 70. Theoperator interface 50 ordisplay 55 may show theattachment dimensions 415 and the type ofattachment 340 such as thebucket 345,dozer blade 350, theforks 355, thetrencher 360, or other attachment 340 (e.g., grapple, auger) as a part of theattachment confirmation 430. The operator may enter the operator input with thedisplay 55 or theoperator input device 60. - If the
attachment 340 is adozer blade 350, the operator may lock theboom assembly 195 to theframe 15 with theboom lock 290. The operator may activate theboom lock 290 by entering the operator input with theoperator interface 50 ordisplay 55 or theoperator input device 60 causing thecontroller 465 to receive theoperator signal 470. Upon receiving theoperator signal 470, thecontroller 465 may transmit the boom lower signal to thehydraulic system 275 to lower theboom assembly 195 to theframe 15. Thecontroller 465 may transmit theboom lock signal 480 to thehydraulic actuator 330 or theelectronic actuator 335 to move theboom lock 290 to the lockedposition 300. Once thedozer blade 350 is attached to thework vehicle 10 and theboom lock 290 is in the lockedposition 300, the operator may provide operator input to theoperator interface 50 or theoperator input device 60 to selectdozer mode 120 thus reconfiguring thework vehicle control 90 to be more like that of a standard dozer or crawler. - When the
dozer blade 350 is coupled to the attachment coupler 250 a load path 515 does not pass through thelower links 205 of theboom assembly 195. The load path 515 may pass through thedozer blade 350, theboom assembly 295, theboom lock 290, and theframe 15. Thetilt cylinders 260 are configured to move or tilt theattachment 340 in both theunlocked position 295 and the lockedposition 300. For example, in the lockedposition 300, thetilt cylinders 260 may raise theattachment 340 off of thesurface 30. Thetilt cylinders 260 may move theattachment 340 from theoperating position 505 to thedump position 510. As theattachment 340 is raised from theoperating position 505 to thedump position 510, theattachment 340 may be rotated to maintain thecutting edge 365 on the cuttingplane 450. For example, if theattachment 340 is thebucket 345, thebucket 345 may be configured to dump and spread contents or a material in thedump position 510. Thestandard configuration 105 may be for controlling thebucket 345 and the updatedconfiguration 110 may be for controlling thedozer blade 350 orother attachments 340. - The
grade control system 445 may receive thegrade command 70 and define the cuttingplane 450. Thecontroller 465 may receive the grade command, thegeospatial positioning signal 440, theboom position signal 245, the attachment position signal 375, and theslope signal 390, to automatically control the elevation and slope of theattachment 340 as thework vehicle 10 traverses thesurface 30. - A method for locking a
boom assembly 195 of awork vehicle 10 to aframe 15 of thework vehicle 10 is illustrated inFIG. 9A . InStep 520, theboom assembly 195 is coupled to anattachment coupler 250 that is coupled to anattachment 340. InStep 525, the method further comprises providing amovable shaft 310 coupled to at least one of theboom assembly 195 and theframe 15, providing areceiving device 305 coupled to at least one of the other of theboom assembly 195 and theframe 15, moving themovable shaft 310 from anunlocked position 295 to a lockedposition 300 where the receivingdevice 305 receives themovable shaft 310. InStep 530 the method comprises creating a load path 515 that passes through theattachment 340, theattachment coupler 250, theboom assembly 195, themovable shaft 310, the receivingdevice 305, and theframe 15. - In
Step 535 the method further comprises providing acontroller 465 to receive anoperator signal 470 from anoperator interface 50 positioned in an operator'sstation 40 coupled to theframe 15, transmitting a boomlower signal 475 to ahydraulic system 275 configured to lower theboom assembly 195 to theframe 15, and transmitting aboom lock signal 480 to ahydraulic actuator 330 or anelectronic actuator 335 to cause the receivingdevice 305 to receive themovable shaft 310. - In
Step 540 the method comprises theattachment 340 is adozer blade 350 and the load path 515 passes through thedozer blade 350, theattachment coupler 250, theboom assembly 195, themovable shaft 310, the receivingdevice 305, and theframe 15. - In
Step 545 the method further comprises tilting theattachment 340 with at least onetilt cylinder 260 coupled to theboom assembly 195 and theattachment coupler 250 to raise theattachment 340 from asurface 30 without changing the load path 515. - A method for maintaining a
cutting edge 365 on a cuttingplane 450 in both anoperating position 505 and adump position 510 of awork vehicle 10 is illustrated inFIG. 9B . InStep 550 the method comprises providing awork vehicle 10 comprising aframe 15, aboom assembly 195 coupled to theframe 15, anattachment coupler 250 coupled to adistal portion 255 of theboom assembly 195, and anattachment 340 coupled to theattachment coupler 250. InStep 555 the method further comprises receiving a boom position signal 245 indicative of a position of theboom assembly 195, receiving an attachment position signal 375 indicative of a position of theattachment coupler 250, receiving agrade command 70 and defining a cuttingplane 450, and maintaining thecutting edge 365 on the cuttingplane 450. InStep 560 the method comprises maintaining thecutting edge 365 on the cuttingplane 450 in thedump position 510 by rotating theattachment 340.
Claims (20)
1. A work vehicle comprising:
a frame;
at least one ground engaging device coupled to the frame and configured to support the frame above a surface;
a boom assembly coupled to the frame and configured to move from a lowered position to a raised position;
an attachment coupler coupled to a distal portion of the boom assembly;
at least one tilt cylinder coupled to the boom assembly and the attachment coupler; and
a boom lock coupled to at least one of the frame and the boom assembly, the boom lock configured to move from an unlocked position where the boom assembly is movable to a locked position where the boom assembly is locked to the frame in the lowered position.
2. The work vehicle of claim 1 , wherein the boom lock comprises a receiving device coupled to at least one of the boom assembly and the frame, the receiving device configured to receive a movable shaft coupled to at least one of the other of the boom assembly and the frame.
3. The work vehicle of claim 1 , further comprising an operator's station coupled to the frame, an operator interface positioned in the operator's station, and a controller configured to receive an operator signal from the operator interface, transmit a boom lower signal to a hydraulic system configured to lower the boom assembly to the frame, and transmit a boom lock signal to an actuator of the boom lock to move the boom lock to the locked position after the boom assembly is lowered to the frame.
4. The work vehicle of claim 1 , further comprising an attachment coupled to the attachment coupler, the tilt cylinder configured to tilt the attachment in the unlocked position and the locked position.
5. The work vehicle of claim 4 , wherein the attachment is a dozer blade and a load path does not pass through a lower link of the boom assembly with the boom lock in the locked position.
6. The work vehicle of claim 4 , wherein the attachment is a dozer blade and a load path passes through the boom assembly, the boom lock, and the frame.
7. The work vehicle of claim 4 , wherein the attachment is a bucket.
8. The work vehicle of claim 4 , wherein the attachment is a fork.
9. The work vehicle of claim 4 , wherein in the locked position, the tilt cylinder raises the attachment off of the surface.
10. A boom lock for a work vehicle comprising a frame, a boom assembly coupled to the frame and configured to move from a lowered position to a raised position, an attachment coupler coupled to a distal portion of the boom assembly, and at least one tilt cylinder coupled to the boom assembly and the attachment coupler, the boom lock comprising:
a movable shaft coupled to at least one of the boom assembly and the frame; and
a receiving device coupled to at least one of the other of the boom assembly and the frame, the receiving device configured to receive the movable shaft,
the boom lock configured to move from an unlocked position where the boom assembly is movable to a locked position where the boom is locked to the frame in the lowered position.
11. The boom lock of claim 10 , further comprising a controller configured to receive an operator signal from an operator interface, transmit a boom lower signal to a hydraulic system configured to lower the boom assembly to the frame, and transmit a boom lock signal to an actuator of the boom lock to move the boom lock to the locked position after the boom assembly is lowered to the frame.
12. The boom lock of claim 10 , further comprising a dozer blade coupled to the attachment coupler and a load path passes through the dozer blade, the boom assembly, the boom lock, and the frame.
13. The boom lock of claim 10 , wherein in the locked position, the tilt cylinder raises an attachment coupled to the attachment coupler off of a surface.
14. The boom lock of claim 13 , wherein attachment is a dozer blade and a load path does not pass through a lower link of the boom assembly with the boom lock in the locked position.
15. A method for locking a boom assembly of a work vehicle to a frame of the work vehicle, the boom assembly coupled to an attachment coupler that is coupled to an attachment, the method comprising:
providing a movable shaft coupled to at least one of the boom assembly and the frame;
providing a receiving device coupled to at least one of the other of the boom assembly and the frame;
moving the movable shaft from an unlocked position to a locked position where the receiving device receives the movable shaft; and
creating a load path that passes through the attachment, the attachment coupler, the boom assembly, the movable shaft, the receiving device, and the frame.
16. The method of claim 15 , further comprising providing a controller to receive an operator signal from an operator interface positioned in a cab coupled to the frame, transmitting a boom lower signal to a hydraulic system configured to lower the boom assembly to the frame, and transmitting a boom lock signal to an actuator to cause the receiving device to receive the movable shaft.
17. The method of claim 15 , wherein the attachment is a dozer blade and the load path passes through the dozer blade, the attachment coupler, the boom assembly, the movable shaft, the receiving device, and the frame.
18. The method of claim 15 , further comprising tilting the attachment with at least one tilt cylinder coupled to the boom assembly and the attachment coupler to raise the attachment from a surface without changing the load path.
19. The method of claim 15 , wherein the attachment is a bucket.
20. The method of claim 15 , wherein the attachment is a trencher.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US16/213,752 US20200181869A1 (en) | 2018-12-07 | 2018-12-07 | Boom Lock |
AU2019271992A AU2019271992A1 (en) | 2018-12-07 | 2019-11-28 | Boom Lock |
DE102019219101.0A DE102019219101A1 (en) | 2018-12-07 | 2019-12-06 | Boom lock |
CN201911256585.2A CN111287234A (en) | 2018-12-07 | 2019-12-09 | Cantilever lock |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/213,752 US20200181869A1 (en) | 2018-12-07 | 2018-12-07 | Boom Lock |
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US20200181869A1 true US20200181869A1 (en) | 2020-06-11 |
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ID=70776548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US16/213,752 Abandoned US20200181869A1 (en) | 2018-12-07 | 2018-12-07 | Boom Lock |
Country Status (4)
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US (1) | US20200181869A1 (en) |
CN (1) | CN111287234A (en) |
AU (1) | AU2019271992A1 (en) |
DE (1) | DE102019219101A1 (en) |
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US4388038A (en) * | 1981-04-22 | 1983-06-14 | Sperry Corporation | Automatic locking pin retraction mechanism |
US5169277A (en) * | 1991-01-29 | 1992-12-08 | Thomas Equipment Ltd. | Lift arm lock down apparatus and method |
US6764270B1 (en) * | 1998-12-11 | 2004-07-20 | Deere & Company | Telescoping implement attachment for a motor vehicle |
US20130343813A1 (en) * | 2011-03-10 | 2013-12-26 | Clark Equipment Company | Implement coupling system for a power machine |
US20160060842A1 (en) * | 2015-11-06 | 2016-03-03 | Caterpillar Sarl | System for controlling lift path of machine work tool |
US10457533B2 (en) * | 2017-09-01 | 2019-10-29 | Oshkosh Corporation | Articulated boom telehandler |
-
2018
- 2018-12-07 US US16/213,752 patent/US20200181869A1/en not_active Abandoned
-
2019
- 2019-11-28 AU AU2019271992A patent/AU2019271992A1/en not_active Abandoned
- 2019-12-06 DE DE102019219101.0A patent/DE102019219101A1/en not_active Withdrawn
- 2019-12-09 CN CN201911256585.2A patent/CN111287234A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4388038A (en) * | 1981-04-22 | 1983-06-14 | Sperry Corporation | Automatic locking pin retraction mechanism |
US5169277A (en) * | 1991-01-29 | 1992-12-08 | Thomas Equipment Ltd. | Lift arm lock down apparatus and method |
US6764270B1 (en) * | 1998-12-11 | 2004-07-20 | Deere & Company | Telescoping implement attachment for a motor vehicle |
US20130343813A1 (en) * | 2011-03-10 | 2013-12-26 | Clark Equipment Company | Implement coupling system for a power machine |
US20160060842A1 (en) * | 2015-11-06 | 2016-03-03 | Caterpillar Sarl | System for controlling lift path of machine work tool |
US10457533B2 (en) * | 2017-09-01 | 2019-10-29 | Oshkosh Corporation | Articulated boom telehandler |
Also Published As
Publication number | Publication date |
---|---|
DE102019219101A1 (en) | 2020-06-10 |
AU2019271992A1 (en) | 2020-06-25 |
CN111287234A (en) | 2020-06-16 |
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