Control valve set with back flushing preventing function
A control valve and anti-recoil technology, which is applied in the direction of servo motor components, fluid pressure actuators, mechanical equipment, etc., can solve problems such as pipeline rupture and damaged valve parts, so as to prevent loss of control, stabilize the system, and reduce impact Effect
Inactive Publication Date: 2017-05-17
SHANGHAI BETT TRANSMISSION EQUIP
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Problems solved by technology
Sometimes damages valves or ruptures lines
Method used
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[0012] Such as figure 1 As shown, a control valve group with an anti-recoil function of the present invention includes a hydraulic motor 1, a reversing valve 2, a forward oil circuit 3 and a reverse oil circuit 4, and one side of the reversing valve 2 is respectively An oil inlet 5 and an oil return port 6, and the other side of the reversing valve 2 is correspondingly provided with two working oil ports 7, and the two working oil ports 7 are respectively connected to the forward oil circuit 3 and the reverse oil circuit One end of 4 is connected, and the oil ports at both ends of the hydraulic motor 1 are respectively connected with the other end of the forward oil circuit 3 and the reverse oil circuit 4; the forward oil circuit 3 and the reverse oil circuit 4 are provided with A balance valve, the balance valve includes a one-way valve 8 and a relief valve 9, the one-way valve 9 is connected in series to the forward oil circuit 3 and the reverse oil circuit 4, and restricts ...
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The invention discloses a control valve set with a back flushing preventing function, and through the control valve set, a system is stable, reliable and safe in running. According to the adopted technical scheme, the control valve set with the back flushing preventing function comprises a hydraulic motor, a reversing valve, a forward oil way and a reverse oil way; an oil inlet and an oil returning port are formed in one side of the reversing valve, and two working oil ports are correspondingly formed in the other side of the reversing valve and communicate with one end of the forward oil way and one end of the reverse oil way correspondingly; two end oil ports of the hydraulic motor communicate with the other end of the forward oil way and the other end of the reverse oil way correspondingly; each of the forward oil way and the reverse oil way is provided with a balance valve; each balance valve comprises a one-way valve and an overflow valve, the one-way valves are connected to the forward oil way and the reverse oil way in series and limit oil from flowing in the hydraulic motor direction, and the overflow valves and the one-way valves are connected to the forward oil way and the reverse oil way in a parallel connection relation; and working oil ways of the two overflow valves communicate with the forward oil way or reverse oil way of the corresponding overflow valves and used for releasing high-pressure oil to the oil ways of the corresponding overflow valves.
Description
technical field [0001] The invention relates to a control valve group with an anti-recoil function, which belongs to the technical field of coal mining area or underground equipment. Background technique [0002] The chain tightening system commonly used in the market changes the direction of rotation of the motor by controlling the valve group during work. When the direction of the motor is changed rapidly during work, the motor will rotate suddenly, and the impact force at this time will be very large. Sometimes it can damage the valve or rupture the pipeline. Therefore, other methods must be used to reduce the impact force to protect other components. Contents of the invention [0003] The invention overcomes the deficiencies in the prior art and provides a control valve group with anti-recoil function which makes the system stable, reliable and safe in operation. [0004] In order to solve the above technical problems, the technical solution adopted in the present i...
Claims
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IPC IPC(8): F15B13/02
CPCF15B13/02
Inventor 胡衣锋崔毅孙业春李春峰张飞
Owner SHANGHAI BETT TRANSMISSION EQUIP