Buffer device and back-tilting preventing device of boom with buffer device

A buffering device and anti-backward tilting technology, applied in springs/shock absorbers, vibration suppression adjustment, mechanical equipment, etc., can solve the problems that the buffering device cannot be adjusted in real time and the buffering effect is not good.

Active Publication Date: 2013-04-17
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing buffer devices with fixed buffer characteristics cannot be adjusted in real time, so the buffer effect is not good

Method used

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  • Buffer device and back-tilting preventing device of boom with buffer device
  • Buffer device and back-tilting preventing device of boom with buffer device
  • Buffer device and back-tilting preventing device of boom with buffer device

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Embodiment Construction

[0042] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and not to limit the present invention.

[0043] Such as Figure 1 to Figure 4 As shown, the present invention provides a buffer device, the buffer device includes an actuating cylinder 1, wherein the buffer device further includes a control valve 2 and a control device 5, the rodless cavity of the actuating cylinder 1 and the control The working port of the valve 2 is connected, and the control device 5 controls the action of the control valve 2 according to the working state of the buffer device, so that the rodless cavity has different pressures.

[0044] Through the above technical solution, since the control device 5 can control the action of the control valve 2 according to the working state of the buffer devic...

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PUM

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Abstract

The invention discloses a buffer device, which comprises a brake cylinder (1), a control valve (2) and a control device (5). A rod-less cavity of the brake cylinder (1) is communicated with a work port of the control valve (2), and the control device (5) controls action of the control valve (2) according to working states of the buffer device so that different pressure can be applied to the inside of the rod-less cavity. The invention further discloses a back-tilting preventing device of a boom comprising the buffer device. The buffer characteristics of the buffer device can be regulated in real time, and even on the working conditions of sudden unloading and the like, the dynamic characteristics of the buffer device can be regulated in real time, so that the mechanical behavior of the boom can be optimized, the boom can be stabilized within the regular elevation range, back tilting of the boom can be prevented and the buffering power peak can be optimum.

Description

Technical field [0001] The present invention relates to the field of construction machinery, in particular, to an anti-backward tilting device for a large boom of construction machinery, and more specifically, to a buffer device in the anti-backward tilting device. Background technique [0002] The anti-backward dynamic buffer device of the large-scale boom of construction machinery provides backward protection for the large-scale truss boom, box-shaped boom and other booms of the construction machinery under the action of large impact loads. [0003] Existing anti-backward devices usually use spring buffer devices and hydraulic buffer devices, but whether it is a spring buffer device or a hydraulic buffer device, the buffering characteristics are fixed, so that the buffer force of the anti-backward device during working cannot adapt to the working conditions The change. Especially under working conditions such as sudden unloading, the dynamic response of the boom shows a non-line...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F15/027F16F15/04B66C23/88
Inventor 刘洋李宇力刘耀宗张劲
Owner ZOOMLION HEAVY IND CO LTD
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