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Plug-in mounting type rotary cushion valve

A slewing buffer and plug-in technology, which is applied in the direction of transportation and packaging, fluid pressure actuating devices, load suspension components, etc., can solve the problems that are not suitable for the wide use of small cranes, high cost, and bulky, etc., and achieve reduction The cumbersome problem of layout and pipeline connection, low cost and smooth movement effect

Active Publication Date: 2018-07-13
安徽仕烽油压科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above two rotary buffer valves are composed of multiple valve parts, which are relatively bulky and costly, and are not suitable for widespread use on small cranes.

Method used

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  • Plug-in mounting type rotary cushion valve

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Embodiment Construction

[0028] In order to make the technical solutions and advantages of the present invention clearer, the exemplary embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than an exhaustive list of all the embodiments. Also, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

[0029] The inventor noticed during the invention process that in the prior art, a rotary buffer valve is generally composed of a plurality of valve parts to prevent overload, resulting in a relatively bulky structure and high cost, which is not suitable for being widely used in small cranes.

[0030] In view of the above deficiencies, an embodiment of the present invention proposes a cartridge-type rotary buffer valve, which will be described below.

[0031] like...

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Abstract

The invention provides a plug-in mounting type rotary cushion valve which comprises a valve body, a main valve core, a valve seat, a threaded sleeve, a first elastic piece and a pilot valve core; an oil port A and an oil port B are formed in the valve body; the main valve core is arranged in the valve body; a first circulation channel communicating with the oil port A and a second circulation channel communicating with the oil port B are formed in the main valve core; the valve seat is connected in the main valve core; one end of the threaded sleeve is fixedly connected with one end, far fromthe oil port A, of the valve body; an oil port T is formed in one side, far from the oil port A, of a threaded sleeve port of the threaded sleeve; the first elastic piece is arranged between the threaded sleeve and the valve seat; one end of the pilot valve core is in compression connection with the threaded sleeve port to separate the oil port T; the other end of the pilot valve core penetrates through the threaded sleeve and the first elastic piece and enters into the valve seat; and a gap circulation channel is formed between the pilot valve core and the valve seat. The plug-in mounting type rotary cushion valve is simpler and more compact in structure, more convenient to machine and lower in cost.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a cartridge-type rotary buffer valve. The cartridge-type rotary buffer valve is mainly used in small cranes, hydraulic cranes, slewing mechanisms and the like. Background technique [0002] In order to improve the work efficiency and the mobility of the whole machine, there are generally slewing mechanisms in construction machinery. For truck cranes, the slewing mechanism is even more indispensable. However, the load inertia of the truck crane during rotation is large, the starting and braking are frequent, and the working conditions are poor, so its hydraulic system requires reliable operation, especially when the rotation is started and braked, there should be no large pressure shock. [0003] In the prior art, overload is generally prevented by setting a swing buffer valve. At present, there are two main types of swing buffer valves for small and medium tonnage hydraulic truc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02B66C23/86B66C13/20
CPCB66C13/20B66C23/86F15B13/02F15B2013/004
Inventor 邵立坤
Owner 安徽仕烽油压科技有限公司
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