Proportional flow cartridge valve and control method thereof
A cartridge valve and proportional valve technology, applied in the hydraulic field, can solve problems such as main valve cavitation, and achieve the effect of avoiding cavitation.
Active Publication Date: 2017-06-16
WUHAN MARINE MACHINERY PLANT
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Problems solved by technology
[0005] In order to solve the problem of cavitation in the main valve of the cartridge valve, the embodiment of the present invention provides a proportional flow cartridge valve and its control method
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[0031] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0032] The embodiment of the present invention provides a proportional flow cartridge valve, which is suitable for being inserted on the hydraulic manifold A, such as figure 1 As shown, the proportional flow cartridge valve includes a main valve 1. The main valve 1 includes a valve body 11 and a valve core 12. One end of the valve body 11 is closed, and the other end of the valve body 11 is provided with an oil outlet for connecting with the hydraulic manifold A. Port C communicates with the opening E, and the side wall of the valve body 11 close to the opening E is provided with a flow hole B for communicating with the oil inlet C of the hydraulic manifold A, and the flow hole B communicates with the opening E; the valve core 12 is co...
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The invention discloses a proportional flow cartridge valve and a control method thereof and belongs to the technical field of hydraulic pressure. The cartridge valve comprises a main valve, the main valve comprises a valve body and a valve cartridge, the valve cartridge is coaxially inserted in the valve body, the outer wall of the valve cartridge is in sliding fit with the inner wall of the valve body, one end of the valve body is provided with a sealed structure, and a cavity is formed between one end of the valve cartridge and one end of the valve body. The cartridge valve further comprises an oil supplementing module. The oil supplementing module comprises a control valve, the valve body is provided with a first channel and a second channel, the first channel is communicated with the cavity and a first working oil port of the control valve, and the second channel is connected with an oil inlet of a hydraulic integrated block and a second working oil port of the control valve. When the valve core moves towards an overflow hole, the first working oil port of the control valve is communicated with the second working oil port of the control valve. According to the proportional flow cartridge valve, a cavitation phenomenon is avoided.
Description
technical field [0001] The invention belongs to the field of hydraulic technology, in particular to a proportional flow cartridge valve and a control method thereof. Background technique [0002] A proportional flow cartridge valve is a common hydraulic component used to regulate the flow of hydraulic oil. [0003] A common proportional flow cartridge valve mainly includes a main valve, which includes a valve body and a valve core. Wherein, one end of the valve body is a closed structure, the other end of the valve body is provided with an opening, and a flow hole communicating with the opening is provided on the side wall of the valve body close to the opening. The valve core is inserted into the valve body, and the outer wall of the valve core is slidingly matched with the inner wall of the valve body. A channel extending from one end of the valve core to the other end is provided in the valve core, and the channel communicates with the opening on the valve body. When t...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F15B13/02
CPCF15B13/02F15B2013/004
Inventor 程源张玲珑胡发国王祺赵天梁
Owner WUHAN MARINE MACHINERY PLANT