Search

KR-20260067990-A - WORKING MACHINE

KR20260067990AKR 20260067990 AKR20260067990 AKR 20260067990AKR-20260067990-A

Abstract

(Project) Provide a working machine capable of compactly mounting hydraulic hoses and harnesses. (Solution) The working machine comprises a lower body, a pair of left and right arms installed on the lower body and extending forward, a blade installed on the tip of the arm, a hydraulic hose extending from the lower body to the blade, and a harness extending from the lower body to the blade. The hydraulic hose extends along one of the arms and is also arranged to be offset from the harness in the vertical direction.

Inventors

  • 야마사키 다츠오
  • 나가타 히로무

Assignees

  • 얀마 홀딩스 주식회사

Dates

Publication Date
20260513
Application Date
20251027
Priority Date
20241106

Claims (20)

  1. The lower body and, A pair of left and right arms installed on the lower body and extending forward, and A working machine having a blade installed on the tip side of the above arm, A hydraulic hose extending from the lower body to the blade side, and It is equipped with a harness extending from the lower body to the blade side, and A working machine in which the above hydraulic hose extends along one arm and is also positioned vertically offset from the above harness.
  2. In Article 1, The above harness is a working machine, wired above the hydraulic hose.
  3. In Article 1, Additionally, a lift cylinder is provided that is positioned between the above-mentioned left and right pair of arms and raises and lowers the blade in the vertical direction, and The above harness is a working machine positioned on the arm side of one side with respect to the lift cylinder and extending from the lower body to the blade side.
  4. In Article 1, The above harness is a working machine positioned on the side of one of the left and right pair of arms and extending from the lower body to the side of the blade.
  5. In Article 1, An angle cylinder disposed on the side of the arm of the above-mentioned one and oscillating each end of the left and right sides of the blade in the front-rear direction, and A protective member that protects the above angle cylinder, and A support member mounted on the above protective member, and A working machine further comprising a harness guide supported by the above-mentioned support member.
  6. In Article 5, A working machine in which, when viewed in a planar view, the harness guide is positioned to overlap with the arm of the one side.
  7. In Paragraph 3, A working machine further comprising a retaining member positioned in front of the lift cylinder and also behind the blade, and holding the harness.
  8. In Article 7, A working machine in which, in front of the above-mentioned retaining part, the harness extends toward the other arm side relative to the lift cylinder.
  9. In Article 8, The above-mentioned harness includes a first harness and a second harness, and The above maintenance part is, A first retaining part that holds the first harness, and It includes a second retaining member that holds the second harness, and A working machine in which the first retaining part is arranged offset from the second retaining part in the left-right direction or the front-back direction.
  10. In Article 7, The above-mentioned harness includes a first harness and a second harness, and The above-mentioned holding member is a working machine that simultaneously holds the first harness and the second harness.
  11. In Article 10, The above-mentioned holding member is a working machine that holds the first harness and the second harness side by side in an up-and-down direction.
  12. In Article 9, The blade is further equipped with a target prism and an attitude detection sensor mounted thereon, and The first harness is connected to the target prism, and The second harness is a working machine connected to the posture detection sensor.
  13. In any one of paragraphs 1 to 4, An angle cylinder that oscillates each of the left and right ends of the above blade in the forward and backward directions, and A tilt cylinder that oscillates each of the left and right ends of the above blade in the up and down direction, and Additionally, an electronic valve is provided to switch the flow path to one side of the angle cylinder and the tilt cylinder, and The above hydraulic hose is, A working machine comprising a first hydraulic hose extending from the lower body and connected to the electronic valve.
  14. In Article 2, The above base portion is a working machine positioned in front of the above opening.
  15. In Article 14, The above base portion is a working machine in which the above harness is a detachable connector.
  16. In Article 15, The above lower body has a front wall portion in which the opening is formed, and A receiving portion is installed in the above front wall portion, and The above connector is a working machine formed at the front end of the receiving portion.
  17. In Article 16, A cable extending to the outside of the lower surface portion of the above-mentioned lower body is additionally provided, and A working machine in which the above cable extends from the lower part of the receiving part into the interior of the receiving part and is connected to the connector from the side opposite to the connection side with the harness.
  18. In Article 17, The above receiving portion has a notch on its bottom surface, and A working machine in which the above cable extends from the lower part of the receiving part through the notch into the interior of the receiving part.
  19. In Article 2, An angle cylinder that oscillates each of the left and right ends of the above blade in the forward and backward directions, and A tilt cylinder that oscillates each of the left and right ends of the above blade in the up and down direction, and Additionally, an electronic valve is provided to switch the flow path to one side of the angle cylinder and the tilt cylinder, and A working machine comprising a first hydraulic hose that passes through the opening and is connected to the electronic valve.
  20. In Article 19, The blade is further equipped with a target prism and an attitude detection sensor mounted thereon, and The above harness is, A first harness connected to the above-mentioned target prism, and A working machine comprising a second harness connected to the above-mentioned posture detection sensor.

Description

Working Machine The present invention relates to a working machine. Conventionally, as a working machine such as a hydraulic shovel, for example, the construction machine of Patent Document 1 is known. The construction machine has an external hose and an external harness. The external hose is formed by extending from the lower body along one of the left and right pair of arms toward the blade side and is connected to a hydraulic device. The external harness is formed by extending from the lower body along the other arm toward the blade side and is connected to a blade displacement detection device. FIG. 1 is a side view showing the schematic configuration of a hydraulic shovel, which is an example of a working machine of the present invention. FIG. 2 is a block diagram showing an electrical configuration for implementing blade machine control. FIG. 3 is a perspective view showing the front side configuration of the lower driving body of the hydraulic shovel. FIG. 4 is a perspective view showing the front side configuration of the lower driving body with some members omitted. FIG. 5 is a perspective view showing an enlarged view of the support portion of the right angle cylinder in the right arm. FIG. 6 is a perspective view of the receiving portion installed on the lower driving body when viewed from an oblique front. Figure 7 is a front view of the above-mentioned receiving portion when viewed from the front. FIG. 8 is a perspective view of the above-mentioned receiving portion when viewed from below. FIG. 9 is a perspective view of the front wall of the lower driving body as seen from the left arm side. FIG. 10 is a plan view showing the configuration of the front of the lower driving body. FIG. 11 is a perspective view showing the appearance of a first retaining part constituting a retaining part. FIG. 12A is an exploded perspective view of the first retaining part. FIG. 12B is an exploded perspective view of the first retaining part. FIG. 13 is a cross-sectional view showing the state in which the covering member is folded back after passing the first harness through the through hole of the covering member. FIG. 14 is a perspective view showing another configuration example of the above-mentioned retaining part. An embodiment of the present invention will be described as follows based on the drawings. [1. Overview of Working Machines] FIG. 1 is a side view showing the schematic configuration of a hydraulic shovel (1), which is an example of a work machine of the present embodiment. The hydraulic shovel (1) is equipped with a lower driving body (2), a working device (3), and an upper rotating body (4). In this specification, each direction is described according to the following definitions. First, the direction facing forward by the operator (pilot, driver) seated in the driver's seat (41a) of the upper swivel body (4) is defined as the front, and the opposite direction is defined as the rear. Accordingly, when the upper swivel body (4) is in a non-swivel state (swivel angle 0°) relative to the lower driving body (2), the front-rear direction of the upper swivel body (4) coincides with the direction in which the lower driving body (2) moves forward and backward. Also, when viewed from the operator seated in the driver's seat (41a), the left side is defined as "left" and the right side as "right." Furthermore, the direction of gravity perpendicular to the front-rear and left-right directions is defined as the up-down direction, and the upstream side of the direction of gravity is defined as "up" and the downstream side as "down." In the drawing, a hydraulic shovel (1) is shown when the upper swivel body (4) is in a non-swivel state relative to the lower driving body (2). Additionally, in drawings, the front is indicated by the symbol "F", the rear by "B", the left by "L", the right by "R", the top by "U", and the bottom by "D" as needed. The lower driving body (2) is a support body (lower body) that supports the upper turning body (4). The lower driving body (2) is equipped with a pair of left and right crawlers (21) and a pair of left and right driving motors (22). Each driving motor (22) is a hydraulic motor. By driving the left and right driving motors (22) respectively to drive the left and right crawlers (21), the hydraulic shovel (1) can be moved forward and backward. The left and right driving motors (22) are each supported by left and right side frames (23). Each side frame (23) extends in the front-rear direction and is positioned on both the left and right sides of the center frame (24) (see FIG. 3) and is supported by the center frame (24). A soil removal device (5) for performing ground leveling work is installed at the front of the lower vehicle body (2). The soil removal device (5) includes a blade (51). On one side of the blade (51) in the left-right direction (e.g., the left side), a target prism (512) is formed through a support column (511). The target prism (512) is formed to realize b