A spring-type hydraulic pulse valve and its application method

Abstract

The invention discloses a spring type hydraulic pulse valve and a use method thereof. The spring type hydraulic pulse valve comprises a control component, a flow distribution valve and a buffering body. The control component comprises a driving motor, the flow distribution valve comprises a valve body, an axial through hole is formed in the center of the valve body, and an adjusting gasket, a pressing block, a compression spring, a thrust ball bearing, a rotary disc, an oil distributing block and an end cover are sequentially arranged in the through hole. A shaft on the rotary disc is connected with the motor, and a groove C is formed in the other side of the rotary disc; four axial blind holes, two radial holes, two annular grooves and an annular step are arranged on the oil distributing block, and two oil paths are formed and can be communicated with the buffering body in the rotary disc rotating process. The buffering body comprises a buffering shell, the bottom of the buffering shell is communicated with the valve body, and a buffering piston, a buffering spring, an adjusting nut and a locking nut are sequentially mounted in a hole of the buffering shell. According to the spring type hydraulic pulse valve, on the premise of achieving precise fluid pulse amount control, a control method is greatly simplified, and the pulse frequency control range is widened.

Description

technical field [0001] The invention relates to a spring type hydraulic pulse valve and a using method thereof, belonging to the technical field of hydraulic control components. Background technique [0002] Hydraulic pulse valve, also called hydraulic digital valve, is a hydraulic control element that intermittently outputs pulses with the volume or mass of fluid as the unit of measurement. At present, there are several types of hydraulic pulse valves. To sum up, compared with the present invention, there are three characteristics: (1) when the existing pulse valves output fluid, they all pass the hydraulic power source and the driven valve briefly. The oil circuit of the control object is directly connected to realize the short-term fluid output, that is, the output of pulse fluid; (2) The output of each pulse of the existing pulse valve is structurally uncertain, and its output is the same as The connection liquid resistance between the power source and the controlled ob...

AI Technical Summary

Problems solved by technology

At present, there are several types of hydraulic pulse valves. To sum up, compared with the present invention, there are three characteristics: (1) when the existing pulse valves output fluid, they all pass the hydraulic power source and the driven valve briefly. The oil circuit of the control object is directly connected to realize the short-term fluid output, that is, the output of pulse fluid; (2) The output of each pulse of the existing pulse valve is structurally uncertain, and its output is the same as The connection liquid resistance between the power source and the controlled object, the connection time, the pressure of the power source at the moment of connection and the pressure of the controlled object are all related. If you want to achieve the same amount of pulse output, you need further control; (3 ) of the pulse valve invented at present, the pulse frequency of the output pulse fluid is affected by the dynamic performance of the electromechanical converter, and the upper limit of the pulse frequency is obviously limited

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