Front supporting leg and engineering vehicle

A technology of front outriggers and telescopic legs, applied in vehicle maintenance, lifting vehicle accessories, transportation and packaging, etc., can solve problems such as hydraulic cylinder top deviation, and achieve the effect of preventing top deviation

Pending Publication Date: 2021-11-02
湖南慧盟重工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present application expects to provide a front outrigger and an engineering vehicle, which can effectively solve the problem of the top deviation of the hydraulic cylinder

Method used

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  • Front supporting leg and engineering vehicle
  • Front supporting leg and engineering vehicle
  • Front supporting leg and engineering vehicle

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Embodiment Construction

[0028] It should be noted that, in the case of no conflict, the embodiments in the application and the technical features in the embodiments can be combined with each other. The detailed description in the specific implementation mode should be understood as an explanation of the application, and should not be regarded as an explanation of the application. Undue Restriction of Application.

[0029] In the description of the embodiments of the present application, the orientations or positional relationships of "upper", "lower", "left", "right", "front", "back" are based on the attached figure 2 It should be understood that these orientation terms are only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be configured in a specific orientation, and operation and therefore should not be construed as limiting the application.

[0030] Such a...

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PUM

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Abstract

The invention discloses a front supporting leg and an engineering vehicle. The front supporting leg comprises: a telescopic leg mechanism with a retracted state and an unfolded state, wherein the telescopic leg mechanism comprises a first section piece, a second section piece arranged in the first section piece in a sleeving manner and a third section piece arranged in the second section piece in a sleeving manner; a hydraulic cylinder assembly arranged in an inner cavity of the telescopic leg mechanism, wherein the hydraulic cylinder assembly is used for driving the telescopic leg mechanism to be switched between the unfolded state and the retracted state; and a guide balance seat arranged in the third section piece, wherein the hydraulic cylinder assembly is connected with the guide balance seat. When the telescopic leg mechanism is switched between a retracted state and an unfolded state, the hydraulic cylinder assembly drives the guide balance seat to move relative to the third section piece in the axial direction of the third section piece; and the direction perpendicular to the axial direction of the third section piece is the first direction, and the two opposite ends, in the first direction, of the guide balance seat abut against the inner wall face of the third section piece so as to limit deflection of the hydraulic cylinder assembly in the first direction. According to the front supporting leg and the engineering vehicle, jacking deviation of the hydraulic cylinder can be effectively prevented.

Description

technical field [0001] The present application relates to engineering machinery, in particular to a front outrigger and an engineering vehicle. Background technique [0002] Many movable construction machines need to use supporting devices to support them during work. The purpose is to increase the supporting area and supporting strength, so as to avoid overturning caused by excessive operating loads. In the prior art, in construction machinery, such as concrete pump trucks, the front outriggers usually use three-stage outriggers and are stretched through the oil cylinder, and the entire working machine is supported by the vertical support legs on the front and rear outriggers. , in order to increase the support strength, the support leg can adopt a support oil cylinder. [0003] The current front outriggers adopt three-stage outriggers mainly in the following forms: a. The first-stage outrigger is driven by a motor to drive the chain mechanism + the second and third-stage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60S9/12
CPCB60S9/12
Inventor 方展吴万广陈兰强
Owner 湖南慧盟重工科技有限公司
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