Engineering machine and movement cushioning device thereof and arm type bucket wheel machine equipped with movement cushioning device

A technology of construction machinery and buffer devices, which is applied in the direction of mechanical equipment, vibration suppression adjustment, spring/shock absorber, etc., can solve the problems of bucket wheel machine tipping, damage of components in equipment, hidden safety hazards, etc., and achieve the effect of slowing down relative movement

Active Publication Date: 2012-03-21
黄万辉
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In the prior art, in order to solve this problem, a protective wire rope is generally connected between the body and the pitching assembly. When the pitching assembly overturns due to the above reasons, the protective wire rope will be tightened instantly to prevent the pitching action of th

Method used

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  • Engineering machine and movement cushioning device thereof and arm type bucket wheel machine equipped with movement cushioning device
  • Engineering machine and movement cushioning device thereof and arm type bucket wheel machine equipped with movement cushioning device
  • Engineering machine and movement cushioning device thereof and arm type bucket wheel machine equipped with movement cushioning device

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Embodiment Construction

[0022] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0023] Such as figure 1 As shown, the motion buffer device of construction machinery according to the present invention includes a hydraulic cylinder 21 and a controller. Wherein, one end of the hydraulic cylinder 21 is connected to the first part of the construction machine, and the other end is connected to the second part of the construction machine. In this embodiment, the first component is the body 4, and the second component is the pitch assembly 5. The body 4 and the pitch assembly 5 will be described in detail in the following preferred embodiments. Such as figure 2 As shown, the rod cavity and the rodless cavity of the hydraulic cylinder 21 communicate through a parallel first oil passage and a second oil passage. In this embodiment, th...

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Abstract

The invention discloses an engineering machine, a movement cushioning device thereof and an arm type bucket wheel machine equipped with the movement cushioning device. The movement cushioning device comprises a hydraulic ram (21), wherein preferably, one end of the hydraulic ram (21) is connected to a first component of the engineering machine, and the other end of the hydraulic ram (21) is connected to a second component of the engineering machine; a rod chamber and a rodless chamber of the hydraulic ram (21) are communicated with each other through a first oil way and a second oil way connected in parallel, and the valve drift diameter of the first oil way is greater than that of the second oil way; and a controller is connected with the hydraulic ram (21), and is used for controlling the first oil way to be cut off when determining that rapid displacement between the first component and the second component occurs. The movement cushioning device provided by the invention has the beneficial effect that the rapid relative displacement process among components in the engineering machine can be cushioned, and excessive inertia force on the engineering machine can be avoided.

Description

technical field [0001] The invention relates to the technical field of engineering machinery protection, in particular to an engineering machinery, a motion buffer device thereof, and an arm type bucket wheel machine provided with the device. Background technique [0002] During the working process of many construction machinery, especially in the case of some failures during work, rapid relative displacements sometimes occur between components (including rapidly moving away and rapidly approaching or even colliding), which will have a negative impact on The entire construction machinery produces a large impact force, and even causes equipment damage, thus causing potential safety hazards. [0003] Taking the arm type bucket wheel machine as an example, a general arm type bucket wheel machine includes a body and a pitching assembly. When working, the body is fixed on the ground, and the pitching assembly is hinged on the body, and can be pitched with the hinge point as the a...

Claims

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Application Information

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IPC IPC(8): F16F9/16F16F15/027
Inventor 黎明
Owner 黄万辉
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