Hydraulic selector valve
A multi-way valve and hydraulic technology, applied in the field of hydraulic control valves, can solve the problems of control restrictions, complex structure, cost increase, etc., and achieve the effects of reducing production costs, improving control functions, and being easy to process and manufacture
Inactive Publication Date: 2008-01-02
王冠军
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Problems solved by technology
[0002] The multi-way valve currently used for hydraulic control is composed of two or more three-position or four-position six-way valves. It needs to open several oil grooves on the valve stem and correspondingly open several There are two oil chambers and oil ports, and the structure is relatively complicated, which makes the manufacturing process more complicated and the cost is correspondingly increased.
Since its structure is composed of two or more three-position or four-position six-way valves, correspondingly, one handle controls one slide valve in use, and the compound manipulation function of single handle controlling two channels cannot be realized, that is, its The structural design makes it impossible to realize the compound action of dual-way control in use, so the application in construction machinery is greatly limited in terms of manipulation.
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[0015] In conjunction with accompanying drawing, provide embodiment of the present invention as follows:
[0016] As shown in the figure, in the hydraulic multi-way valve of the present invention, two valve stems 10-1, 10-2 and the middle slide valve 5 cooperate with the valve body 1 to form a valve group, and the valve stems 10-3, 10- 4 and the middle slide valve 5 cooperate with the valve body 1 to form another valve group, the valve stems 10-1, 10-2 are arranged symmetrically at 180°, and the valve stems 10-3, 10-4 are arranged symmetrically at 180°, each The valve stem has an annular oil groove 7 that is normally connected to a working oil port on the valve body. The working oil port 16 is normally connected, the annular oil groove of the valve stem 10-3 is normally connected to the working oil port 17, and the annular oil groove of the valve stem 10-4 is normally connected to the working oil port 18; The spring 2 that acts upwards, the two valve stems of one valve group ...
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This invention provides a new type hydraulic pressure multiple-way valve. It includes valve block (1) and valve bar and valve manipulating mechanism. It has one / two valve group, each group is consisted by two valve bar and mid position spool valve (5) and valve block (1), the movement of two valves of the same group presents up and down opposite direction, and separately connected to oil supply cavity / oil return cavity, mid position spool valve (5) communicates oil supply cavity (6) and oil return cavity (9) when it is on mid position to release load of oil pump oil supply system. mid position spool valve (5) move follow the movement of any valve bar when the multiple-way valve is working to disconnect the oil supply cavity (6) and oil return cavity (9) of valve block. The original complex single valve bar valve function of multiple-way valve can be realized by using two simple valve bar composing one valve group. Its structure is reasonable, manufacture is easy and manufacturing cost is reduced. It can operate two valve group through the ball pivot operating mechanism, so the complex work of stepless control the original multiple-way valve and two-way valve is realized, and the operating function of multiple-way valve is improved.
Description
technical field [0001] The invention belongs to hydraulic control valve technology, and mainly relates to a hydraulic multi-way valve. Background technique [0002] The multi-way valve currently used for hydraulic control is composed of two or more three-position or four-position six-way valves. It needs to open several oil grooves on the valve stem and correspondingly open several There are two oil chambers and oil ports, and the structure is relatively complicated, which makes the manufacturing process more complicated and the cost is correspondingly increased. Since its structure is composed of two or more three-position or four-position six-way valves, correspondingly, one handle controls one slide valve in use, and the compound manipulation function of single handle controlling two channels cannot be realized, that is, its The structural design makes it impossible to realize the compound action of dual control in use, which is very limited in the application of constru...
Claims
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IPC IPC(8): F15B13/02
Inventor 王冠军
Owner 王冠军