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Hydraulic crusher

A hydraulic crushing and crushing machine technology, which is applied in earth moving machines/excavators, building maintenance, construction, etc., can solve the problem of easy damage, broken shells clamped in the main body of the cylinder 113 and the second hydraulic software connected to the piston rod. Between the pipes 109, 119, ..., the second hydraulic hose damage and other problems, to achieve the effect of suppressing irregular movement

Inactive Publication Date: 2010-07-07
KOBELCO CONSTR MASCH CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

That is, since the length of the second hydraulic hoses 109, 119, ... is limited to a length that does not bend due to slack even when the crushing arm 111 is closed, when the crushing arm 111 is closed, that is, the hydraulic cylinder 103 is gradually expanded. When opened, the second hydraulic hoses 109, 119, .
[0012] In addition, since the second hydraulic hoses 109, 119, ... are in a state where both ends are fixed, the flexibility is small, so they are contracted by the hydraulic cylinder 103 (the cylinder main body 113 moves toward the base end side to accommodate a piston rod not shown in the figure). , broken shells, etc. are easily caught between the cylinder main body 113 and the second hydraulic hoses 109, 119, ... connected to the piston rod, and the second hydraulic hoses 109, 119, ... may be damaged.

Method used

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other Embodiment approach

[0097] The present invention is not limited to the embodiments, and can be implemented in various other forms without departing from the spirit or main characteristics.

[0098] In the above-mentioned embodiment, the relay mechanism is constituted by the distal end side joints 9b, 19b, . . . It may be configured such that the front-end side joints 7b, 9b, .

[0099] In addition, in the above-mentioned embodiment, the second hydraulic hoses 9, 19, ... are bundled at the central part of the cavity part 65 when viewed from the longitudinal direction, but only the top ends of the four second hydraulic hoses 9, 19, ... part and the top ends of the four first hydraulic hoses are separated by a predetermined distance, then the second hydraulic hoses 9, 19 can also be bundled in such a way as to surround the first hydraulic hoses 7, 17, ... with an annular clamp ,….

[0100] In addition, in the above-described embodiment, the distal end side joints 9b, 19b, ... of the respective sec...

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Abstract

A hydraulic crusher includes crushing arms, a crusher body having a hollow portion extending in the longitudinal direction, and hydraulic cylinders. The hydraulic crusher includes four first hydraulic hoses which have proximal caps connected to ports of the crusher body and extend toward the distal side in the longitudinal direction in the hollow portion; four second hydraulic hoses which have proximal caps connected to ports of the hydraulic cylinders, and extend into the hollow portion and then toward the distal side in the longitudinal direction while being curved; and a clamp or the like serving as a joint member movable in the longitudinal direction, the clamp connecting distal sections of the first hydraulic hoses with distal sections of the second hydraulic hoses.

Description

technical field [0001] The present invention relates to a hydraulic breaker for demolition of construction parts, etc., which is mounted on the tip end of an arm of a working machine such as a hydraulic excavator. Background technique [0002] Conventionally, it is known to use a large crusher or a hydraulic breaker attached to the arm tip of a hydraulic excavator to perform demolition work for concrete structures or the like. Especially in demolition work in urban areas and other places, hydraulic crushers with excellent dust, vibration and noise countermeasures are used more than large crushers. [0003] A hydraulic crusher usually has: a pair of crushing arms used to crush the crushed objects; the main body of the crusher that supports the crushing arms at the top end through a pivot to open and close freely; A pair of hydraulic cylinders that are rotatably connected to the base end of each crushing arm. In addition, most of the hydraulic hose that connects the port at ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F5/30E04G23/08
CPCE02F3/3677E02F3/965E02F3/3681E02F9/2275E02F3/3654
Inventor 村冈大辅
Owner KOBELCO CONSTR MASCH CO LTD
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