CN-121992842-A - Work machine

Abstract

The invention provides a working machine, which can compactly arrange a hydraulic hose and a wire harness. The working machine includes a lower body, a pair of left and right arms attached to the lower body and extending forward, a scraper attached to a distal end side of the arms, a hydraulic hose extending from the lower body to the scraper side, and a wire harness extending from the lower body to the scraper side. The hydraulic hoses extend along one arm and are arranged offset from the wire harness in the up-down direction.

Inventors

• YAMAZAKI TATSUO
• Kageta Takashi

Assignees

• 洋马控股株式会社

Dates

Publication Date

20260508

Application Date

20251105

Priority Date

20241106

Claims (20)

1. 1. A work machine is provided with: A lower body; A pair of left and right arms mounted to the lower body and extending forward, and A scraper mounted on the distal end side of the arm, Wherein, the The work machine includes: A hydraulic hose extending from the lower body to the blade side, and A wire harness extending from the lower body to the blade side, The hydraulic hose extends along one arm and is disposed offset from the harness in the up-down direction.
2. 2. The work machine of claim 1, wherein, The wire harness is routed further above than the hydraulic hose.
3. 3. The work machine of claim 1, wherein, The working machine further includes a lift cylinder disposed between the pair of left and right arms and configured to lift the blade in a vertical direction, The wire harness is disposed on the one arm side with respect to the lift cylinder, and extends from the lower body toward the blade side.
4. 4. The work machine of claim 1, wherein, The wire harness is disposed on the one arm side of the pair of left and right arms, and extends from the lower body toward the blade side.
5. 5. The work machine of claim 1, wherein, The work machine further includes: A swing cylinder which is disposed laterally of the one arm and swings each of left and right end portions of the blade in a front-rear direction; a protection member that protects the swing cylinder; A support part assembled to the protection member, and And a harness guide supported by the support portion.
6. 6. The work machine of claim 5, wherein, The harness guide is configured to overlap with the one arm in a plan view.
7. 7. The work machine of claim 3, wherein, The work machine further includes a holding portion that is disposed in front of the lift cylinder and behind the blade and holds the wire harness.
8. 8. The work machine of claim 7, wherein, The wire harness extends toward the other arm side with respect to the lift cylinder in front of the holding portion.
9. 9. The work machine of claim 8, wherein, The harness includes a first harness and a second harness, The holding portion includes: A first holding portion for holding the first thread bundle, and A second holding portion that holds the second harness, The first holding portion is disposed so as to be offset in the left-right direction or the front-rear direction with respect to the second holding portion.
10. 10. The work machine of claim 7, wherein, The harness includes a first harness and a second harness, The holding portion holds the first harness and the second harness at the same time.
11. 11. The work machine of claim 10, wherein, The holding portion holds the first harness and the second harness in an aligned manner in the up-down direction.
12. 12. The work machine of claim 9, wherein, The working machine further includes an collimating prism mounted to the blade and a posture detecting sensor, The first wire harness is connected with the collimating prism, The second harness is connected with the posture detection sensor.
13. 13. The work machine according to any one of claims 1 to 4, wherein, The work machine further includes: a swinging cylinder that swings each of left and right end portions of the blade in a front-rear direction; A tilt cylinder for swinging each of the left and right end portions of the blade in the up-down direction, and A solenoid valve for switching an oil passage to one of the swing cylinder and the tilt cylinder, The hydraulic hose includes a first hydraulic hose extending from the lower body and connected with the solenoid valve.
14. 14. The work machine of claim 2, wherein, The base end portion is disposed further forward than the opening portion.
15. 15. The work machine of claim 14, wherein, The base end portion is a connector that can be attached to and detached from the wire harness.
16. 16. The work machine of claim 15, wherein, The lower body has a front wall portion provided with the opening portion, A containing part is arranged on the front wall part, The connector is provided at a front end portion of the housing portion.
17. 17. The work machine of claim 16, wherein, The working machine further includes a cable extending to the outside of the lower surface portion of the lower body, The cable extends from below the housing portion to inside the housing portion, and is connected to the connector from a side opposite to a connection side with respect to the wire harness.
18. 18. The work machine of claim 17, wherein, The accommodating part is provided with a notch part on the bottom surface, The cable extends from below the housing portion to the inside of the housing portion through the cutout portion.
19. 19. The work machine of claim 2, wherein, The work machine further includes: a swinging cylinder that swings each of left and right end portions of the blade in a front-rear direction; A tilt cylinder for swinging each of the left and right end portions of the blade in the up-down direction, and A solenoid valve for switching an oil passage to one of the swing cylinder and the tilt cylinder, The hydraulic hose includes a first hydraulic hose that passes through the opening portion and is connected to the solenoid valve.
20. 20. The work machine of claim 19, wherein, The working machine further includes an collimating prism mounted to the blade and a posture detecting sensor, The wire harness includes: a first wire harness connected to the collimating prism, and And a second harness connected to the posture detection sensor.

Description

Work machine Technical Field The present invention relates to a work machine. Background Conventionally, as a working machine such as a hydraulic excavator, for example, a construction machine of patent document 1 has been known. The construction machine has an outer hose and an outer harness. The outer hose extends from the lower traveling body to the blade side along one of the pair of left and right arms, and is connected to the hydraulic device. The external harness extends from the lower traveling body along the other arm toward the blade, and is connected to the blade displacement detection device. Prior art literature Patent literature Patent document 1 Japanese patent application laid-open No. 2022-13175 Disclosure of Invention With the structure of the above patent document 1, the hydraulic hose (outer hose) and the wire harness (outer wire harness) are separately laid in the left-right direction, and therefore, it is difficult to compactly lay the above components. The present invention has been made to solve the above-described problems, and an object thereof is to provide a working machine capable of compactly laying a hydraulic hose and a wire harness. A working machine according to one aspect of the present invention includes a lower body, a pair of left and right arms attached to the lower body and extending forward, and a scraper attached to a distal end side of the arms, wherein the working machine includes a hydraulic hose extending from the lower body to the scraper side, and a wire harness extending from the lower body to the scraper side, wherein the hydraulic hose extends along one arm and is arranged offset from the wire harness in an up-down direction. The working machine according to another aspect of the present invention includes a lower body, a pair of left and right arms attached to the lower body and extending forward, and a scraper attached to a distal end side of the arms, wherein the working machine includes an opening portion through which a hydraulic hose extends from the lower body to the scraper side, and a base end portion connected to a wire harness extending from the lower body to the scraper side, and the opening portion and the base end portion are arranged so as to be offset in a vertical direction. Effects of the invention According to the above structure, the hydraulic hose and the wire harness can be compactly laid. Drawings Fig. 1 is a side view showing a schematic configuration of a hydraulic excavator as an example of a work machine according to the present invention. Fig. 2 is a block diagram showing an electrical structure for performing squeegee mechanical control. Fig. 3 is a perspective view showing a structure of the hydraulic excavator on the front side of the lower traveling structure. Fig. 4 is a perspective view showing a structure of the front side of the lower traveling body in a state in which a part of the components are omitted. Fig. 5 is a perspective view showing an enlarged support portion of the right swing cylinder of the right arm. Fig. 6 is a perspective view of the housing portion attached to the lower traveling body, as seen obliquely from the front. Fig. 7 is a front view of the housing portion when viewed from the front. Fig. 8 is a perspective view of the housing portion when viewed from below. Fig. 9 is a perspective view of the front wall portion of the lower traveling body as seen from the left arm side. Fig. 10 is a plan view showing a structure in front of the lower traveling body. Fig. 11 is a perspective view showing an appearance of a first holding portion constituting the holding portion. Fig. 12A is an exploded perspective view of the first holding portion. Fig. 12B is an exploded perspective view of the first holding portion. Fig. 13 is a cross-sectional view showing a state in which the covering member is folded back after the first harness passes through the through hole of the covering member. Fig. 14 is a perspective view showing another configuration example of the holding portion. Description of the reference numerals 1 Hydraulic excavator (working machine), 2 lower traveling structure (lower structure), 24D surface portion, 51 scraper, 52 lift cylinder, 53 swing cylinder, 53L left swing cylinder, 53R right swing cylinder, 54 tilt cylinder, 55 arm, 55R right arm, 56 housing portion, 56F front end, 56a main body housing, 56b cover portion, 55L left arm, 55R right arm, 72 solenoid valve, 81 protecting member, 82 supporting portion, 83 harness guide, 90 holding portion, 91 first holding portion, 92 second holding portion, 512 aligning prism, 561 bottom surface, 561C cut-out portion, BE1 base end portion, BE1 first base end portion, BE2 second base end portion, CA: cable, CN: connector, CN1 first connector, CN2 second connector, 514 posture detecting sensor, EN: EN1 first harness, 2 second harness, second harness H, shared hydraulic hose H1, shared hydraulic hose H2. Detailed Description Embodiments of the present inven