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WO2016140042A1 - Engin de chantier et dispositif de défonceuse - Google Patents

Engin de chantier et dispositif de défonceuse Download PDF

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Publication number
WO2016140042A1
WO2016140042A1 PCT/JP2016/054198 JP2016054198W WO2016140042A1 WO 2016140042 A1 WO2016140042 A1 WO 2016140042A1 JP 2016054198 W JP2016054198 W JP 2016054198W WO 2016140042 A1 WO2016140042 A1 WO 2016140042A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylinder
work vehicle
vehicle
arm
end portion
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.)
Ceased
Application number
PCT/JP2016/054198
Other languages
English (en)
Japanese (ja)
Inventor
智明 辻
卓矢 植村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Komatsu Ltd
Original Assignee
Komatsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Komatsu Ltd filed Critical Komatsu Ltd
Priority to US15/531,057 priority Critical patent/US20170328029A1/en
Publication of WO2016140042A1 publication Critical patent/WO2016140042A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
    • E02F5/32—Rippers
    • 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
    • E02F3/7604—Combinations of scraper blades with soil loosening tools working independently of scraper blades
    • 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
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/2025—Particular purposes of control systems not otherwise provided for
    • E02F9/205—Remotely operated machines, e.g. unmanned vehicles
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/26—Indicating devices
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/26—Indicating devices
    • E02F9/261—Surveying the work-site to be treated
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
    • E02F9/0883—Tanks, e.g. oil tank, urea tank, fuel tank
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2271—Actuators and supports therefor and protection therefor

Definitions

  • the present invention relates to a work vehicle and a ripper device.
  • the ripper device is attached to the rear part of the work vehicle.
  • the ripper device includes a shank, a tilt cylinder that operates the shank, and a lift cylinder that moves the shank up and down.
  • the shank is lowered by the lift cylinder.
  • the ripper point at the tip of the shank penetrates the ground.
  • the shank is raised by the lift cylinder.
  • the ripper device of Patent Document 1 includes one tilt cylinder and two lift cylinders.
  • the tip of the tilt cylinder is connected to the arm and is located below the tip of the lift cylinder.
  • the rear part of the vehicle to which the ripper device is attached is easier for the operator to access than other parts of the work vehicle. Therefore, maintainability can be improved if an arrangement space for members of the work vehicle can be provided at the rear of the vehicle.
  • the tip of the tilt cylinder is positioned below the tip of the lift cylinder. Therefore, it is difficult for an operator to provide an arrangement space at a position below the tilt cylinder that is easily accessible.
  • An object of the present invention is to provide a technique capable of improving the maintainability of a work vehicle.
  • the ripper device is a ripper device attached to a work vehicle.
  • the ripper device includes a first cylinder, a shank, and a second cylinder.
  • the shank is operated by the first cylinder and is aligned with the first cylinder in plan view.
  • the second cylinder has a proximal end portion attached to the work vehicle and a distal end portion opposite to the proximal end portion.
  • the second cylinder operates the shank.
  • the base end portion and the tip end portion of the second cylinder are located above the first cylinder in a side view.
  • the diameter of the first cylinder is larger than the diameter of the second cylinder.
  • an arrangement space can be provided at a position below the second cylinder that is easy for the operator to access. Further, the tip of the second cylinder does not hinder access to the arrangement space. Thereby, the maintainability of a work vehicle can be improved.
  • the ripper device may further include a third cylinder.
  • the second cylinder and the third cylinder may be arranged symmetrically with respect to the first cylinder in plan view. In this case, the balance of the load transmitted from the ripper device to the work vehicle can be improved as compared with the case where the pair of left and right first cylinders are attached to the vehicle body apart from the left and right.
  • the ripper device may further include an arm.
  • the arm is rotatably attached to the vehicle main body, is disposed below the first cylinder, and supports the shank.
  • the arm may have a first arm base end, a second arm base end, and a recess.
  • the first arm base end is attached to the work vehicle.
  • the second arm base end is attached to the work vehicle, and is disposed away from the first arm base end in the left-right direction.
  • the recess is disposed between the first arm base end and the second arm base end in the left-right direction.
  • the length of the recess in the front-rear direction may be 1/3 or less of the length of the arm in the front-rear direction.
  • the first cylinder and the shank may be arranged in the front-rear direction in plan view. In this case, the worker can easily access the arrangement space. Thereby, maintainability can be improved.
  • the first cylinder may be disposed on the center line of the ripper device extending in the front-rear direction and may extend in the front-rear direction. In this case, the worker can easily access the arrangement space. Thereby, maintainability can be improved.
  • a work vehicle includes a vehicle body and the above-described ripper device.
  • the second cylinder and the second tilt cylinder are arranged symmetrically with respect to the first cylinder in plan view. For this reason, the balance of the load transmitted from the ripper device to the work vehicle can be improved as compared with the case where the pair of left and right first cylinders are attached to the vehicle body apart from the left and right.
  • the first cylinder may be attached to the center of the vehicle body in the vehicle width direction.
  • a portion located on the side of the first cylinder in the vehicle main body can be used as a member arrangement space. Further, since the first cylinder does not hinder access to the arrangement space, the operator can easily access the arrangement space. Thereby, maintainability can be improved.
  • the rear part of the vehicle main body may have a first attachment part and a first arrangement part.
  • a second cylinder is attached to the first attachment portion.
  • the first arrangement portion may be arranged below the first attachment portion. In this case, the worker can easily access the first placement unit. Thereby, maintainability can be improved.
  • a cooling water reservoir tank may be arranged in the first arrangement part. In this case, access to the cooling water reservoir tank is facilitated.
  • the start switch of the work vehicle may be arranged in the first arrangement unit. In this case, access to the start switch is facilitated.
  • an electric fuse and / or a breaker of the work vehicle may be arranged. In this case, access to the fuse and / or breaker is facilitated.
  • a monitor that displays information on the work vehicle may be arranged in the first arrangement unit. In this case, access to the monitor becomes easy.
  • the ripper device may further include a third cylinder.
  • the second cylinder and the third cylinder are arranged symmetrically with respect to the first cylinder in plan view.
  • the rear portion of the vehicle main body may include a second attachment portion and a second arrangement portion.
  • a third cylinder is attached to the second attachment portion.
  • the second arrangement part may be arranged below the second attachment part. In this case, the operator can easily access the second placement unit. Thereby, maintainability can be improved.
  • FIG. 1 is a perspective view of a work vehicle according to an embodiment. It is a side view of a work vehicle. It is a top view of a work vehicle. It is a rear view of a work vehicle. It is a perspective view of the rear part of a vehicle body. It is a top view of the rear part of a vehicle body. It is a perspective view of the arm of a ripper apparatus. It is a block diagram which shows the control system of a work vehicle.
  • FIG. 1 is a perspective view of a work vehicle 1 according to the present embodiment.
  • FIG. 2 is a side view of the work vehicle 1.
  • FIG. 3 is a plan view of the work vehicle 1.
  • FIG. 4 is a rear view of the work vehicle 1.
  • the work vehicle 1 is a bulldozer.
  • the work vehicle 1 is a vehicle that does not include a cab. As will be described later, the work vehicle 1 can be remotely operated.
  • the work vehicle 1 includes a vehicle main body 2 and a work implement 3.
  • the vehicle body 2 includes a traveling device 4 and an engine room 5.
  • the traveling device 4 is a device for causing the work vehicle 1 to travel.
  • the traveling device 4 has crawler belts 4a and 4b.
  • the crawler belt 4 a is provided on the left side of the vehicle body 2.
  • the crawler belt 4 b is provided on the right side portion of the vehicle main body 2.
  • the work vehicle 1 travels by driving the crawler belts 4a and 4b.
  • the front means the direction where the working machine 3 is arrange
  • Left and right mean the left and right directions in the state of facing forward.
  • the vehicle width direction may be rephrased as the left-right direction.
  • the engine room 5 is arranged on the front part of the vehicle body 2.
  • An engine 11 (see FIG. 8) is disposed in the engine chamber 5.
  • the vehicle main body 2 has a rear housing portion 6, a right housing portion 7, and a left housing portion 8. As shown in FIG. 1, the engine compartment 5, the rear housing portion 6, the right housing portion 7, and the left housing portion 8 are disposed so as to surround the maintenance area MA.
  • the engine room 5 is disposed in front of the maintenance area MA.
  • the rear housing portion 6 is disposed behind the maintenance area MA.
  • the right accommodating portion 7 is disposed on the right side of the maintenance area MA.
  • the left accommodating portion 8 is disposed on the left side of the maintenance area MA.
  • the rear container 6 is a fuel tank.
  • a configuration may be employed in which the fuel tank is accommodated in the rear accommodating portion 6.
  • a cooling device such as a radiator is disposed in the right accommodating portion 7.
  • a hydraulic oil tank is disposed in the left accommodating portion 8.
  • the thing accommodated in each accommodating part 6-8 is not restricted to these things, You may change.
  • the lid member 10 is disposed above the maintenance area MA.
  • the lid member 10 is disposed so that the maintenance area MA can be opened and closed.
  • FIG. 1 illustrates a state where the lid member 10 is opened
  • FIGS. 2 to 4 illustrate a state where the lid member 10 is closed.
  • the engine room 5 and the accommodating part 7 are provided with doors (not shown) for opening and closing the engine room 5 and the accommodating part 7 facing the maintenance area MA.
  • the operator can access the engine room 5 and the inside of the storage part 7 from the maintenance area MA by opening the doors of the engine room 5 and the storage part 7.
  • the work machine 3 is disposed in front of the vehicle body 2.
  • the work machine 3 is disposed in front of the engine room 5.
  • the work machine 3 is a blade.
  • the work machine 3 is supported by the left arm 14 and the right arm 15.
  • the left arm 14 is attached to the left side of the vehicle body 2.
  • the right arm 15 is attached to the right side of the vehicle body 2.
  • the work machine 3 is provided with a left tilt cylinder 16, a right tilt cylinder 17, and a lift cylinder 18.
  • the left tilt cylinder 16 is attached to the left side of the vehicle body 2.
  • the right tilt cylinder 17 is attached to the left side of the vehicle body 2.
  • the left tilt cylinder 16 and the right tilt cylinder 17 are driven by hydraulic oil from the hydraulic pump 12 (see FIG. 8).
  • the left tilt cylinder 16 and the right tilt cylinder 17 operate the working machine 3 to the left and right.
  • the lift cylinder 18 is attached to the center of the vehicle body 2 in the vehicle width direction. In the work vehicle 1, only one lift cylinder 18 is provided. The lift cylinder 18 is disposed in front of the engine compartment 5. The lift cylinder 18 is disposed behind the work machine 3. The lift cylinder 18 is driven by hydraulic oil from the hydraulic pump 12. The lift cylinder 18 moves the work machine 3 up and down.
  • FIG. 5 is a perspective view of the rear part of the vehicle body 2.
  • FIG. 6 is a plan view of the ripper device 31.
  • the ripper device 31 is disposed behind the vehicle body 2.
  • the ripper device 31 is attached to the rear part of the vehicle main body 2.
  • the ripper device 31 includes a shank 51, a ripper support member 52, a first tilt cylinder 53, a second tilt cylinder 54, a lift cylinder 55, and an arm 56.
  • the shank 51 extends in the vertical direction, and the lower end portion of the shank 51 is curved forward.
  • a ripper point 57 is attached to the lower end of the shank 51.
  • the ripper support member 52 supports the shank 51.
  • the shank 51 protrudes downward from the ripper support member 52.
  • the ripper support member 52 has a first tilt mounting portion 521 and a second tilt mounting portion 522.
  • the first tilt mounting portion 521 and the second tilt mounting portion 522 are provided on the upper portion of the ripper support member 52.
  • the first tilt mounting portion 521 and the second tilt mounting portion 522 are disposed apart from each other in the vehicle width direction.
  • a first tilt cylinder 53 is rotatably attached to the first tilt attachment portion 521.
  • the second tilt cylinder 54 is rotatably attached to the second tilt attachment portion 522.
  • the ripper support member 52 has a lift mounting portion 523.
  • the lift attachment portion 523 is located below the first tilt attachment portion 521 and the second tilt attachment portion 522.
  • a lift cylinder 55 is rotatably attached to the lift attachment portion 523.
  • the ripper support member 52 has an arm mounting portion 524.
  • the arm attachment portion 524 is located below the lift attachment portion 523.
  • An arm 56 is rotatably attached to the arm attachment portion 524.
  • the first tilt cylinder 53 and the second tilt cylinder 54 are arranged away from each other in the vehicle width direction.
  • the first tilt cylinder 53 and the second tilt cylinder 54 rotate the shank 51 around the arm attachment portion 524.
  • the first tilt cylinder 53 and the second tilt cylinder 54 are inclined rearward and upward.
  • the first tilt cylinder 53 and the second tilt cylinder 54 extend in the vehicle front-rear direction in the vehicle plan view.
  • the first tilt cylinder 53 has a first tilt base end portion 531 and a first tilt tip end portion 532.
  • the first tilt base end portion 531 is rotatably attached to the vehicle body 2.
  • the first tilt distal end 532 is positioned opposite to the first tilt base end 531 in the axial direction of the first tilt cylinder 53.
  • the first tilt tip 532 is rotatably attached to the first tilt attachment 521.
  • the second tilt cylinder 54 has a second tilt base end 541 and a second tilt front end 542.
  • the second tilt base end 541 is attached to the vehicle body 2 so as to be rotatable.
  • the second tilt distal end 542 is located opposite to the second tilt base end 541 in the axial direction of the second tilt cylinder 54.
  • the second tilt tip 542 is rotatably attached to the second tilt attachment 522.
  • the rear part of the vehicle body 2 has a first tilt mounting part 201 and a second tilt mounting part 202.
  • the first tilt mounting portion 201 is rotatably attached to the first tilt base end portion 531.
  • the second tilt mounting portion 202 is rotatably attached to the second tilt base end portion 541.
  • the lift cylinder 55 is attached to the center of the vehicle body 2 in the vehicle width direction.
  • the lift cylinder 55 moves the shank 51 and the ripper support member 52 up and down.
  • the lift cylinder 55 is disposed between the first tilt cylinder 53 and the second tilt cylinder 54 in the vehicle plan view.
  • the lift cylinder 55 is disposed on an extension of the center line in the vehicle width direction of the vehicle body 2 and extends in the vehicle front-rear direction.
  • the lift cylinder 55 has a tube 55a and a rod 55b.
  • the rod 55b protrudes rearward from the tube 55a in the vehicle plan view.
  • the lift cylinder 55 extends and contracts in the front-rear direction.
  • the lift cylinder 55 does not overlap the first tilt cylinder 53 and the second tilt cylinder 54 in the vehicle plan view.
  • the lift cylinder 55 is located below the first tilt cylinder 53 and the second tilt cylinder 54. In the vehicle plan view, the lift cylinder 55 is aligned with the shank 51 in the front-rear direction.
  • the diameter of the lift cylinder 55 is larger than the diameter of the first tilt cylinder 53.
  • the diameter of the lift cylinder 55 is larger than the diameter of the second tilt cylinder 54.
  • the lift cylinder 55 has a lift base end portion 551 and a lift tip end portion 552.
  • the lift base end portion 551 is rotatably attached to the vehicle body 2.
  • the lift front end 552 is positioned opposite to the lift base end 551 in the axial direction of the lift cylinder 55.
  • the lift tip portion 552 is rotatably attached to the lift attachment portion 523 of the ripper support member 52.
  • the first tilt tip 532 and the second tilt tip 542 are positioned above the lift tip 552.
  • the first tilt base end portion 531 and the second tilt base end portion 541 are located above the lift base end portion 551.
  • the rear part of the vehicle body 2 has a lift mounting part 203.
  • a lift base end portion 551 of a lift cylinder 55 is rotatably attached to the lift attachment portion 203.
  • the lift mounting portion 203 is located between the first tilt mounting portion 201 and the second tilt mounting portion 202 in the vehicle width direction.
  • the lift attachment portion 203 is positioned below the first tilt attachment portion 201 and the second tilt attachment portion 202.
  • the arm 56 is rotatably attached to the vehicle body 2.
  • the arm 56 is disposed below the lift cylinder 55.
  • the arm 56 rotatably supports the shank 51 and the ripper support member 52.
  • FIG. 7 is a perspective view of the arm 56. As shown in FIG. 7, the arm 56 includes a first arm tip 61, a second arm tip 62, and a tip side recess 63.
  • the first arm tip 61 and the second arm tip 62 are attached to the shank 51 and the ripper support member 52 so as to be rotatable.
  • the first arm tip portion 61 and the second arm tip portion 62 are arranged apart from each other in the vehicle width direction.
  • the first arm tip 61 is provided with a hole 611 that penetrates in the vehicle width direction.
  • the second arm distal end portion 62 is provided with a hole 621 that penetrates in the vehicle width direction.
  • the front end side concave portion 63 is disposed between the first arm front end portion 61 and the second arm front end portion 62 in the vehicle width direction.
  • the length of the tip side recess 63 in the vehicle front-rear direction is 1/3 or less of the length of the arm 56 in the vehicle front-rear direction.
  • a part of the shank 51 is disposed in the distal end side recess 63.
  • the arm 56 includes a first arm base end portion 64, a second arm base end portion 65, and a base end side recess 66.
  • the first arm base end portion 64 and the second arm base end portion 65 are rotatably attached to the vehicle body 2.
  • the second arm base end portion 65 is disposed away from the first arm base end portion 64 in the vehicle width direction.
  • the first arm base end portion 64 is provided with a hole 641 penetrating in the vehicle width direction.
  • the second arm base end portion 65 is provided with a hole 651 penetrating in the vehicle width direction.
  • a first arm attachment portion 204 and a second arm attachment portion 205 are provided at the rear portion of the vehicle body 2.
  • the first arm attachment portion 204 and the second arm attachment portion 205 are located below the upper surfaces of the crawler belts 4a and 4b.
  • the first arm attachment portion 204 and the second arm attachment portion 205 are located inside the crawler belts 4a and 4b.
  • the first arm attachment portion 204 and the second arm attachment portion 205 are located below the lift attachment portion 203.
  • the first arm base end portion 64 When the pin member is passed through the first arm base end portion 64 and the first arm attachment portion 204, the first arm base end portion 64 is rotatably attached to the first arm attachment portion 204.
  • the second arm base end portion 65 By passing the pin member through the second arm base end portion 65 and the second arm attachment portion 205, the second arm base end portion 65 is rotatably attached to the second arm attachment portion 205.
  • the base end side recess 66 is disposed between the first arm base end portion 64 and the second arm base end portion 65 in the vehicle width direction.
  • the proximal-side concave portion 66 has a shape that is recessed from the proximal end portion of the arm 56 toward the distal end side.
  • the length of the base end side recess 66 in the vehicle front-rear direction is 1/3 or less of the length of the arm 56 in the vehicle front-rear direction.
  • the distance L2 between the center line of the holes 641 and 651 for attaching the arm 56 to the vehicle main body 2 and the proximal end side recess 66 is the center of the holes 641 and 651 for attaching the arm 56 to the vehicle main body 2. 1/3 or less of the distance L1 between the line and the center line of the holes 611 and 621 for attaching the arm 56 to the shank 51.
  • the length of the proximal end side recess 66 is not limited to 1/3 or less of the length of the arm 56.
  • the base-side concave portion 66 may be of a size that allows the pin member that fixes the first arm base end portion 64 and the first arm attachment portion 204 to be removable.
  • the base-side concave portion 66 may be of a size that allows the pin member that fixes the second arm base end portion 65 and the second arm attachment portion 205 to be removable.
  • the arm 56 overlaps the tube 55a of the lift cylinder 55 in plan view.
  • the arm 56 overlaps with more than half of the tube 55a in the front-rear direction.
  • the arm 56 may overlap the entire tube 55a in plan view.
  • the arm 56 has a tapered shape so that the dimension of the arm 56 in the vehicle width direction decreases toward the rear of the vehicle body 2. That is, the width of the distal end portion of the arm 56 is smaller than the width of the proximal end portion of the arm 56.
  • the left side surface of the arm 56 has a proximal side left side surface 67 and a distal side left side surface 68.
  • the proximal left side surface 67 extends from the proximal end portion of the arm 56 toward the distal end side.
  • the proximal side left side surface 67 is substantially parallel to the vehicle longitudinal direction.
  • the distal left side surface 68 is located on the distal end side of the proximal left side surface 67.
  • the front end side left side surface 68 is inclined with respect to the vehicle front-rear direction so as to approach the center line in the vehicle width direction of the vehicle main body 2 toward the rear of the vehicle main body 2.
  • the right side surface of the arm 56 has a proximal right side surface 69 and a distal right side surface 70.
  • the proximal-side right side surface 69 extends from the proximal end portion of the arm 56 toward the distal end side.
  • the proximal right side surface 69 is substantially parallel to the vehicle longitudinal direction.
  • the distal-side right side 70 is located on the distal side of the proximal-side right side 69.
  • the front end side right side surface 70 is inclined with respect to the vehicle front-rear direction so as to approach the center line in the vehicle width direction of the vehicle main body 2 toward the rear of the vehicle main body 2.
  • At least a part of the front end side left side surface 68 is located inward of the first tilt cylinder 53. At least a part of the front end side right side surface 70 is located inward of the second tilt cylinder 54.
  • the base side left side surface 67 overlaps the first tilt cylinder 53.
  • the proximal right side surface 69 overlaps the second tilt cylinder 54.
  • the width of the tip of the arm 56 is smaller than the distance between the first tilt tip 532 and the second tilt tip 542.
  • the width of the base end portion of the arm 56 is larger than the distance between the first tilt base end portion 531 and the second tilt base end portion 541.
  • the ripper apparatus described above performs a tilt operation and a lift operation.
  • the tilt operation the tilt cylinders 53 and 54 extend, but the lift cylinder 55 does not expand and contract, and the length of the lift cylinder 55 is fixed.
  • the lift cylinder 55 and the arm 56 are rotated, and the tip of the lift cylinder 55 and the tip of the arm 56 are raised while the shank 51 is inclined.
  • the lift cylinder 55 contracts, but the tilt cylinders 53 and 54 do not expand and contract, and the lengths of the tilt cylinders 53 and 54 are fixed. Therefore, the ripper support member 52 is pulled toward the vehicle body side, and the tilt cylinders 53 and 54 and the arm 56 are rotated so that the tip ends of the tilt cylinders 53 and 54 and the tip end of the arm 56 are raised. Thereby, the ripper support member 52 and the shank 51 rise.
  • the rear portion of the vehicle main body 2 includes a first placement portion 71 and a second placement portion 72.
  • the first placement portion 71 is placed below the first tilt mounting portion 201.
  • the first placement portion 71 is placed above the first arm attachment portion 204.
  • the second arrangement part 72 is arranged below the second tilt attachment part 202.
  • the second placement portion 72 is placed above the second arm attachment portion 205.
  • the first placement portion 71 and the second placement portion 72 are spaced apart in the vehicle width direction.
  • a lift cylinder 55 is arranged between the first arrangement part 71 and the second arrangement part 72.
  • the first arrangement portion 71 is arranged on the outer side of the lift cylinder 55.
  • the second arrangement part 72 is arranged outside the lift cylinder 55.
  • the first arrangement 71 has a high access frequency such as a coolant reservoir tank, start switch, emergency stop switch, fuel tank strainer, fuel prefilter, fuel water separator, access light switch, quick drain, quick charge, oil sampling, etc.
  • a high access frequency such as a coolant reservoir tank, start switch, emergency stop switch, fuel tank strainer, fuel prefilter, fuel water separator, access light switch, quick drain, quick charge, oil sampling, etc.
  • One or more of the members are arranged.
  • One or more of the above-described members are arranged in the second arrangement portion 72.
  • FIG. 8 is a block diagram showing a control system of the work vehicle 1.
  • the work vehicle 1 includes a hydraulic pump 12 and a pump capacity control unit 19.
  • the hydraulic pump 12 discharges hydraulic oil by being driven by the engine 11.
  • the hydraulic pump 12 is a variable displacement pump, and the pump displacement control unit 19 controls the discharge displacement of the hydraulic pump 12.
  • the work vehicle 1 has a work implement control valve 20 and a hydraulic actuator 21.
  • the hydraulic actuator 21 is driven by the hydraulic oil discharged from the hydraulic pump 12.
  • the hydraulic actuator 21 includes a lift cylinder 18 and left and right tilt cylinders 16 and 17 of the work machine 3.
  • the hydraulic actuator 21 includes a lift cylinder 55 of the ripper device 31 and first and second tilt cylinders 53 and 54.
  • the work machine control valve 20 controls supply and discharge of hydraulic oil to the hydraulic actuator 21.
  • the work vehicle 1 has a power transmission device 13 and a clutch control valve 22.
  • the power transmission device 13 includes, for example, a transmission and a torque converter.
  • the clutch control valve 22 controls switching of a shift clutch, a forward / reverse clutch, a steering clutch, and the like included in the power transmission device 13.
  • the imaging unit 23 acquires an image around the work vehicle 1.
  • the imaging unit 23 includes a surrounding imaging unit 40, a work machine imaging unit 45, and a ripper imaging unit 46.
  • the surrounding imaging unit 40 images a region around the vehicle body 2. That is, the surrounding imaging unit 40 images the front, rear, left, and right areas of the vehicle body 2.
  • the surrounding imaging unit 40 includes a front imaging unit 41, a left imaging unit 42, a right imaging unit 43, and a rear imaging unit 44.
  • the front imaging unit 41 is attached to the support member 33.
  • the support member 33 is attached to the front portion of the vehicle body 2.
  • the support member 33 is attached to the center of the vehicle body 2 in the vehicle width direction.
  • the front imaging unit 41 images the front of the vehicle body 2.
  • the left imaging unit 42 is attached to the left side of the vehicle body 2.
  • the left imaging unit 42 images the left side of the vehicle body 2.
  • the right imaging unit 43 is attached to the right side of the vehicle body 2.
  • the right imaging unit 43 images the right side of the vehicle body 2.
  • the rear imaging unit 44 is attached to the rear part of the vehicle body 2.
  • the rear imaging unit 44 images the rear of the vehicle body 2.
  • the work machine imaging unit 45 images the area in front of the work machine 3 and the work machine 3.
  • the work machine imaging unit 45 is disposed above the work machine 3.
  • the work implement imaging unit 45 is disposed above the upper end of the work implement 3.
  • the work machine imaging unit 45 is disposed above the front imaging unit 41.
  • the work machine imaging unit 45 is disposed in front of the front imaging unit 41.
  • the work machine imaging unit 45 is supported by the support member 33.
  • the ripper imaging unit 46 images the work position by the ripper device 31. Specifically, the ripper imaging unit 46 images the ripper point 57 and the surrounding area. As shown in FIG. 5, the ripper imaging unit 46 is attached to the left end of the rear part of the vehicle body 2. As shown in FIG. 1, the ripper imaging unit 46 is disposed below the rear imaging unit 44. The ripper imaging unit 46 is disposed above the arm 56 in the rear part of the vehicle main body 2. The ripper imaging unit 46 is disposed outside the base end portion of the arm 56 at the rear portion of the vehicle main body 2. A crawler belt 4 a is located below the ripper imaging unit 46.
  • the front end side left side surface 68 is inclined so as not to overlap the virtual straight line L ⁇ b> 1 connecting the ripper imaging unit 46 and the lower end of the shank 51.
  • the ripper imaging unit 46 can image the lower end portion of the shank 51 located around the arm 56 from the position above the arm 56 and the periphery thereof.
  • the ripper imaging unit 46 may be arranged at the right end of the rear part of the vehicle main body 2. Also in this case, the tip side right side surface 70 is inclined so as not to overlap the virtual straight line connecting the ripper imaging unit 46 and the lower end of the shank 51, so that the ripper imaging unit 46 is not interfered with the arm 56. In addition, the lower end portion of the shank 51 located below the arm 56 can be imaged from a position above the arm 56. Alternatively, the ripper imaging unit 46 may be disposed on both the left and right side end portions of the rear portion of the vehicle body 2.
  • the work vehicle 1 includes a vehicle control unit 24 and a communication unit 25.
  • the communication unit 25 is connected to an antenna 99 (see FIG. 1) mounted on the vehicle body 2.
  • the communication unit 25 communicates with the communication unit 27 of the remote operation device 26 by radio.
  • the remote control device 26 is disposed in a management center remote from the work site where the work vehicle 1 is used.
  • the remote control device 26 may be portable and may be arranged at a work site.
  • the vehicle control unit 24 includes an arithmetic device such as a CPU, a memory such as a RAM or a ROM, or a storage device such as a hard disk.
  • the vehicle control unit 24 is programmed to control the work vehicle 1 based on an operation signal from the remote operation device 26. Further, the vehicle control unit 24 acquires the image data acquired by the imaging unit 23 via wired or wireless. The vehicle control unit 24 transmits the image data captured by the imaging unit 23 to the communication unit 27 of the remote operation device 26 via the communication unit 25.
  • the remote operation device 26 includes a remote control unit 28 and an operation unit 29.
  • the remote control unit 28 includes an arithmetic device such as a CPU, a memory such as a RAM or a ROM, or a storage device such as a hard disk.
  • the operation unit 29 is operated by an operator who drives the work vehicle 1.
  • the operation unit 29 includes an accelerator operation device for adjusting the output of the engine 11.
  • the operation unit 29 includes a work machine operation device for operating the work machine 3.
  • the operation unit 29 includes a ripper operating device for operating the ripper device 31.
  • the operation unit 29 includes a steering operation device for changing the traveling direction of the work vehicle 1 to the left and right.
  • the remote control unit 28 transmits an operation signal indicating the operation content by the operation unit 29 to the communication unit 25 of the work vehicle 1 via the communication unit 27.
  • the remote operation device 26 has a display unit 30.
  • the display unit 30 is configured by a display such as a CRT, LCD, or OELD, for example.
  • the display unit 30 is not limited to these displays, and may be other types of displays.
  • the communication unit 27 of the remote operation device 26 receives the image data captured by the imaging unit 23 from the communication unit 25 of the work vehicle 1.
  • the remote control unit 28 is programmed to display an image showing the periphery of the work vehicle 1 on the display unit 30 based on the image data captured by the imaging unit 23.
  • the remote control unit 28 may combine the bird's-eye view image from the image captured by the imaging unit 23 and display the synthesized image on the display unit 30.
  • the remote control unit 28 may cause the display unit 30 to display images captured by the imaging unit 23.
  • the operator operates the operation unit 29 while viewing the display image. Thereby, an operation signal is transmitted from the communication unit 27 of the remote operation device 26, and the communication unit 25 of the work vehicle 1 receives the operation signal from the remote operation device 26.
  • the vehicle control unit 24 controls the engine 11, the pump capacity control unit 19, the work implement control valve 20, the clutch control valve 22, and the like described above based on the operation signal. Thereby, the operator can operate the work vehicle 1 remotely.
  • the first tilt tip portion 532 and the second tilt tip portion 542 are located above the lift cylinder 55.
  • the first tilt base end portion 531 and the second tilt base end portion 541 are located above the lift cylinder 55.
  • the part located under the 1st tilt cylinder 53 and the 2nd tilt cylinder 54 in the rear part of the vehicle main body 2 can be utilized as the arrangement space of the arrangement parts 71 and 72.
  • the operator can easily access the placement portions 71 and 72. Thereby, maintainability can be improved.
  • a lift cylinder 55 is attached to the center of the vehicle body 2 in the vehicle width direction. Therefore, the arrangement parts 71 and 72 can be arranged in the part located on the left side and the right side of the lift cylinder 55 in the rear part of the vehicle body 2. Since the lift cylinder 55 does not hinder access to the placement parts 71 and 72, the operator can easily access the placement parts 71 and 72. Thereby, maintainability can be improved.
  • the pair of lift cylinders 55 are arranged apart from each other on the left and right, it is possible to reduce the load caused by the twist applied to the vehicle body 2. Further, the rear of the vehicle body 2 is imaged by the rear imaging unit 44. Therefore, the operator can confirm the situation behind the vehicle body 2 by viewing the image captured by the rear imaging unit 44. Therefore, even if the lift cylinder 55 is attached to the center of the vehicle body 2 in the vehicle width direction, there is no problem that the lift cylinder 55 obstructs the field of view.
  • the length of the base side recess 66 of the arm 56 in the vehicle longitudinal direction is 1/3 or less of the length of the arm 56 in the vehicle longitudinal direction. For this reason, compared with the case where the base end side recessed part 66 is still larger, it can suppress that earth and sand contact the lift cylinder 55 through the base end side recessed part 66 at the time of a ripping operation.
  • the lift cylinder 55 is disposed between the first tilt cylinder 53 and the second tilt cylinder 54. Further, in the vehicle plan view, the lift cylinder 55 is disposed on an extension of the center line in the vehicle width direction of the vehicle main body 2 and extends in the vehicle front-rear direction. For this reason, the operator can easily access the placement portions 71 and 72 from the left and right sides of the lift cylinder 55. Thereby, maintainability can be improved.
  • the work vehicle 1 can be remotely operated by the remote operation device 26. Therefore, the operator can operate the work vehicle 1 from the outside of the work vehicle 1. Further, since the operator can easily access the placement units 71 and 72 from the ground, the maintainability can be improved.
  • the work vehicle is not limited to a bulldozer, but may be another type of work vehicle such as a wheel loader.
  • the work vehicle is not limited to a remotely operated vehicle, and may be a manned work vehicle.
  • a cab is provided in the vehicle body, and a device similar to the remote control device 26 may be arranged in the cab. Thereby, the operator can easily operate the work vehicle 1 while viewing the display image.
  • the number of surrounding imaging units 40 is not limited to four, but may be three or less, or five or more.
  • the arrangement of the imaging units of the surrounding imaging unit 40 is not limited to the arrangement of the above-described embodiment, and may be a different arrangement.
  • the front imaging unit 41 is not limited to the support member 33 and may be attached to other parts.
  • the front imaging unit 41 may be attached to the vehicle body 2.
  • the number of work implement imaging units 45 is not limited to one, and may be two or more.
  • the arrangement of the work machine imaging unit 45 is not limited to the arrangement of the above embodiment, and may be a different arrangement.
  • the number of ripper imaging units 46 is not limited to one and may be two or more.
  • the arrangement of the ripper imaging unit 46 is not limited to the arrangement of the above embodiment, and may be a different arrangement.
  • An imaging unit other than the rear imaging unit 44 may be omitted.
  • a driver's seat may be provided in the vehicle main body 2, and an operator may perform an operation while visually confirming the front, left, and right sides of the vehicle. In this case, the operator only needs to be able to confirm the image captured by the rear imaging unit 44 with the display unit 30 arranged in the driver's seat.
  • the support member 33 may be omitted.
  • the arrangement part may be arranged only below the first tilt mounting part 201. That is, only the 1st arrangement
  • the arrangement part may be arranged only below the second tilt attachment part 202. That is, only the second placement portion 72 may be provided in the vehicle body 2 and the first placement portion 71 may be omitted.
  • Vehicle main body 44 Rear imaging unit 31 Ripper device 51 Shank 53 First tilt cylinder 54 Second tilt cylinder 55 Lift cylinder 531 First tilt base end 532 First tilt front end 56 Arm 64 First arm base end 65 Second Arm base end portion 66 Base end side recess 201 First tilt mounting portion 202 Second tilt mounting portion 71 First placement portion 72 Second placement portion 25 Communication portion 24 Vehicle control portion

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)

Abstract

Cette invention concerne un dispositif de défonceuse, comprenant un premier vérin, une tige, et un second vérin. La tige est actionnée par le premier vérin et est alignée avec le premier vérin lorsqu'elle est vue en plan. Le second vérin présente une extrémité de base montée sur un engin de chantier et une extrémité distale opposée à l'extrémité de base. Le second vérin actionne la tige. En vue latérale, l'extrémité de base et l'extrémité distale du second vérin sont disposées plus haut que le premier vérin. Le diamètre du premier vérin est supérieur au diamètre du second vérin.
PCT/JP2016/054198 2015-03-02 2016-02-12 Engin de chantier et dispositif de défonceuse Ceased WO2016140042A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/531,057 US20170328029A1 (en) 2015-03-02 2016-02-12 Work vehicle and ripper device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-040108 2015-03-02
JP2015040108A JP2018062733A (ja) 2015-03-02 2015-03-02 作業車両及びリッパ装置

Publications (1)

Publication Number Publication Date
WO2016140042A1 true WO2016140042A1 (fr) 2016-09-09

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JP (1) JP2018062733A (fr)
WO (1) WO2016140042A1 (fr)

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CN108487347A (zh) * 2017-10-25 2018-09-04 凌夕珈 破岩装置

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JP2016160649A (ja) * 2015-03-02 2016-09-05 株式会社小松製作所 作業車両及びリッパ装置
JP7158216B2 (ja) 2018-09-03 2022-10-21 株式会社小松製作所 作業機械のための表示システム
US10959364B2 (en) 2018-11-16 2021-03-30 Cnh Industrial America Llc Tillage point having variable ground engaging structure
US11610295B2 (en) * 2019-12-09 2023-03-21 Cnh Industrial America Llc System and method for detecting the operating condition of components of an implement
US12329999B2 (en) * 2021-07-08 2025-06-17 Grant Stanton Cooper Bulldozer with fire apparatus
JP2023142831A (ja) * 2022-03-25 2023-10-05 株式会社小松製作所 作業機械および表示システム

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Publication number Priority date Publication date Assignee Title
US4013129A (en) * 1975-09-24 1977-03-22 International Harvester Company Ripper for attachment to tractor
JP2007154453A (ja) * 2005-12-01 2007-06-21 Komatsu Ltd 建設機械のリアコンソール取付構造
JP2008265698A (ja) * 2007-04-25 2008-11-06 Komatsu Ltd 作業車両のモニタ装置取付構造
JP2009085585A (ja) * 2007-09-11 2009-04-23 Komatsu Ltd ラジエータ
US20140102735A1 (en) * 2012-04-20 2014-04-17 Ronald Hall Hall Vibratory ripper having depth adjustable ripping member

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4013129A (en) * 1975-09-24 1977-03-22 International Harvester Company Ripper for attachment to tractor
JP2007154453A (ja) * 2005-12-01 2007-06-21 Komatsu Ltd 建設機械のリアコンソール取付構造
JP2008265698A (ja) * 2007-04-25 2008-11-06 Komatsu Ltd 作業車両のモニタ装置取付構造
JP2009085585A (ja) * 2007-09-11 2009-04-23 Komatsu Ltd ラジエータ
US20140102735A1 (en) * 2012-04-20 2014-04-17 Ronald Hall Hall Vibratory ripper having depth adjustable ripping member

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108487347A (zh) * 2017-10-25 2018-09-04 凌夕珈 破岩装置
WO2019080897A1 (fr) * 2017-10-25 2019-05-02 成都市猎石者破岩科技有限责任公司 Dispositif de fracture de roche et engin de chantier
CN108487347B (zh) * 2017-10-25 2019-10-08 凌夕珈 破岩装置

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JP2018062733A (ja) 2018-04-19
US20170328029A1 (en) 2017-11-16

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