Integrated electrohydraulic proportional control valves
An electro-hydraulic proportional control valve technology, applied in the field of control valves, can solve problems such as inability to realize automatic control, uncompact equipment structure, and single function, and achieve the effect of compact structure, reduced volume, and wide application prospects
Inactive Publication Date: 2010-12-08
CHONGQING YUEJIN MACHINERY
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Problems solved by technology
[0003] 1. The control adopts mechanical manual adjustment, which is very inconvenient and cannot realize automatic control
[0004] 2. Even if the electronically controlled proportional valve structure is adopted, the structure of the whole equipment is not compact and the volume is large due to the single function
Method used
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Embodiment Construction
[0020] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0021] like figure 1 , figure 2 , image 3 and Figure 4 As shown, the valve body 1 is a rectangular structure, and the surface of the valve body 1 is provided with a liquid inlet P1, a first liquid outlet P2 and a second liquid outlet P3, wherein the liquid inlet P1, the first and second liquid outlets The specific positions of the ports P2 and P3 can be determined according to actual needs. In this embodiment, the liquid inlet P1 is located on the right end surface of the valve body 1, and the first liquid outlet P2 and the second liquid outlet P3 are located on the left end surface of the valve body 1. . The valve body 1 is provided with three valve chambers 2, 3, 4, the first valve chamber 2, the second valve chamber 3 and the third valve chamber 4 are straight-through hole structures, the three are parallel to each other, and respectively pass throu...
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The invention relates to an integrated electro-hydraulic proportional control valve. A valve body is provided with three valve cavities, wherein the liquid inlet end of the first valve cavity is communicated with a liquid inlet through a first passage, the liquid outlet end of the first valve cavity is communicated with a first liquid outlet through a second passage, and a safety valve is arranged in the first valve cavity; a control valve and an electromagnetic valve are arranged in the second valve cavity, an inlet of the control valve is communicated with an liquid inlet through a third passage, and an outlet of the control valve is communicated with the second valve cavity; the valve body is also provided with a fourth passage of which the inlet end is communicated with the second valve cavity and the outlet end is divided into two paths, one path is communicated with a second liquid outlet, while the other path is communicated with the liquid inlet end of the third valve cavity; and the liquid outlet end of the third valve cavity is communicated with the first liquid outlet, and a one-way valve is arranged in the third valve cavity. The integrated electro-hydraulic proportional control valve adopts current to adjust the control so as to achieve automatic control conveniently; and compared with the split structures of the prior proportional valve and a pressure valve, the integrated electro-hydraulic proportional control valve is integrated into an integral structure of an electro-hydraulic proportional valve, has a more compact structure, and greatly reduces the volume.
Description
technical field [0001] The invention belongs to the technical field of control valves, and in particular relates to an integrated electro-hydraulic proportional control valve. Background technique [0002] Control valves are widely used in various hydraulic systems. Traditional control valves such as safety valves and check valves not only have a single function, but also have the following shortcomings in the control mode: [0003] 1. The control adopts mechanical manual adjustment, which is very inconvenient and cannot realize automatic control. [0004] 2. Even though the electronically controlled proportional valve structure is adopted, the structure of the whole equipment is not compact and the volume is large due to the single function. Contents of the invention [0005] The technical problem to be solved by the present invention is to provide an integrated electro-hydraulic proportional control valve capable of automatic control. [0006] The technical scheme of t...
Claims
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IPC IPC(8): F15B13/02F16K11/22
Inventor 冀庆康张文华欧锐
Owner CHONGQING YUEJIN MACHINERY