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Anti-rotation valve for rotary motors used in engineering equipment

A technology of engineering equipment and valve body, which is applied in the direction of balance valve, valve device, safety valve, etc., can solve the problems of unfavorable weight and cost, complexity, etc., and achieve the effect of favorable cost and weight

Active Publication Date: 2022-03-29
股份公司摩拓乐
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, such a reverse rotation prevention valve necessarily has a complex structure due to a large number of parts as shown in the figure, and thus has disadvantageous limitations in terms of weight and cost.

Method used

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  • Anti-rotation valve for rotary motors used in engineering equipment
  • Anti-rotation valve for rotary motors used in engineering equipment
  • Anti-rotation valve for rotary motors used in engineering equipment

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Embodiment Construction

[0033] In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by implementing the present invention, it is necessary to refer to the drawings illustrating preferred embodiments of the present invention and the contents described in the drawings.

[0034] In describing preferred embodiments of the present invention, descriptions of well-known technologies or repetitive descriptions that may unnecessarily obscure the gist of the present invention will be reduced or omitted.

[0035] figure 2 The reverse rotation prevention valve of the present invention is shown.

[0036] Refer below figure 2 A reverse rotation prevention valve of a swing motor for construction equipment according to an embodiment of the present invention will be described.

[0037] The first chamber 111 and the second chamber 112 respectively communicated with the flow path for left-hand rotation and or the flow path for right-hand r...

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PUM

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Abstract

The present invention provides an anti-rotation valve for a rotary motor used in engineering equipment, comprising: a pair of valve bodies, which are accommodated in a first chamber and a second chamber and respectively positioned in the first chamber and the second chamber The action is carried out indoors, and it is configured as a symmetrical structure with one side facing each other, and the other side is pressurized by elastic force. According to the present invention, while maintaining the function of the anti-rotation valve, it is advantageous in terms of weight and cost.

Description

technical field [0001] The present invention relates to a reverse rotation prevention valve suitable for a reverse rotation phenomenon like an excavator when the upper body rotates and stops. Background technique [0002] Construction equipment, such as an excavator or a crane, is provided with an upper body driven by hydraulic pressure. Such an upper body is configured to turn left or right, and to stop turning by a driver's operation. [0003] Usually, the swing of the upper body is performed by driving a hydraulic swing motor, which swings by supplying hydraulic pressure from a hydraulic pump and stops by cutting off the hydraulic pressure. [0004] On the other hand, when controlling the swing stop of the upper body, the supply of hydraulic oil is cut off through the port for left swing or the port for right swing, and the connection port for left swing and the right swing to the swing motor connected thereto are cut off. In the state where the hydraulic oil is supplie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K17/04F15B13/02
CPCF16K17/048F15B13/025E02F9/2267E02F9/226F15B2211/422
Inventor 吴承焕黄景园
Owner 股份公司摩拓乐