Control valve for hydraulic circuit
A technology of hydraulic circuits and control valves, which is applied in the direction of fluid pressure actuators, servo motor components, mechanical equipment, etc., and can solve problems such as heating of motors or actuators, damage to motors or actuators, and unsafe use
Inactive Publication Date: 2015-09-23
HIGH TECH FLUID POWER CO LTD
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Problems solved by technology
[0002] In the hydraulic system, multiple motors or actuators are often used to work in parallel. In some cases, it is often necessary to connect a single or multiple motors and actuators in parallel to the hydraulic circuit or separate from the hydraulic circuit. When it will continue to move, due to internal leakage and heat generation of the motor or actuator, simply switching the pipeline will easily cause damage to the motor or actuator, which is unsafe to use
Method used
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[0018] Such as figure 1 , 2 As shown in , 3 and 4, a control valve of a hydraulic circuit includes a valve body 1, the valve body 1 is provided with a valve chamber 11 and a first connection port 12 leading to the valve chamber 11, a second connection port Port 13, the third connection port 14, the fourth connection port 15, the valve body 1 is also provided with an oil inlet 16 connected with the first connection port 12, an oil return port 17 connected with the fourth connection port 15, A valve core 2 is provided in the valve cavity 11, and the valve core 2 is arranged in a columnar shape. A first annular guide for connecting the first connection port 12 and the second connection port 13 is provided on the valve core 2 along its axial direction. The groove 21 is used to connect the third connection port 14 and the fourth connection port 15 to the second annular guide groove 22. The valve body 1 is also provided with a control oil passage 41 for controlling the forward and ...
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The invention relates to a control valve for a hydraulic circuit. The control valve is characterized by comprising a valve body, the valve body is provided with a valve cavity, a first connecting port, a second connecting port, a third connecting port and a fourth connecting port, the first connecting port, the second connecting port, the third connecting port and the fourth connecting port are communicated with the valve cavity, and a valve element used for enabling the third connecting port to be communicated with the fourth connecting port when the first connecting port is communicated with the second connecting port and enabling the second connecting port to be communicated with the third connecting port when the first connecting port and the second connecting port are disconnected and the third connecting port and the fourth connecting port are disconnected is arranged in the valve cavity. By the adoption of the control valve, one or more motors and an executing mechanism can be connected to a hydraulic circuit in parallel or disconnected from the hydraulic circuit, and the motors or the executing mechanism can be made to run for a long time without damage caused.
Description
technical field [0001] The invention relates to a control valve of a hydraulic circuit. Background technique [0002] In the hydraulic system, multiple motors or actuators are often used to work in parallel. In some cases, it is often necessary to connect a single or multiple motors and actuators in parallel to the hydraulic circuit or separate from the hydraulic circuit. When it will continue to move, due to the internal leakage and heat generation of the motor or actuator, if the pipeline is simply switched, it will easily cause damage to the motor or actuator, and it is not safe to use. Contents of the invention [0003] Purpose of the present invention: In order to overcome the defects of the prior art, the present invention provides a control valve of a hydraulic circuit, which can connect single or multiple motors and actuators in parallel to the hydraulic circuit or separate them from the hydraulic circuit, and can make the motor or The actuator maintains long-ter...
Claims
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Login to View More IPC IPC(8): F15B13/02
CPCF15B13/02
Inventor 杨小理
Owner HIGH TECH FLUID POWER CO LTD