A Proportional Reversing Valve with Shaft Distribution
A proportional reversing valve and axial flow distribution technology, which is applied in the direction of valve devices, multi-way valves, sliding valves, etc., can solve the problems of actuator failure, limited flow capacity, and influence on heat dissipation characteristics, so as to reduce mechanical contact wear and bias Eliminate hidden dangers, realize the gap sealing length, and ensure the effect of long-term effective work
Active Publication Date: 2022-05-20
TONGJI UNIV
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Problems solved by technology
[0003] According to the type of power supply voltage, it can be divided into DC and AC. The power supply voltage value can be selected in a wide range. The movement of the valve core in the valve body is mainly supported by the hydraulic oil film. Oil pollution particles passing through the gap between the valve core and the valve body will affect the smooth movement of the valve core. If the electromagnetic coil is in the energized state for a long time, the valve core is easy to get stuck, causing the actuator to fail; and due to the limited installation space, the size of the coil will limit its maximum holding force, which will affect its output power characteristics. The hydraulic force generated by the cavity formed by the spool / valve body also limits the flow capacity of conventional on-off electromagnetic reversing valves; and the size of the coil also affects the heat dissipation characteristics, and it is easy to burn the coil in a high-temperature or high-humidity environment. The plastic sealing process of the coil and the way of electrical connection affect the waterproof level
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[0032] Such as Figure 1-6 As shown, the present invention provides an axial distribution proportional reversing valve, which includes an internal axial distribution spool rotor 2 and an external axial distribution valve body stator 4; by adjusting the rotation of the axial distribution spool rotor 2 to different angle ranges, the adjustment work The continuous proportional communication between the oil port, the oil supply port and the oil return port realizes the continuous and different proportional speed control of the action of the actuator. Within the set rotation angle range, the actuator can maintain the same state, with fewer parts and easy processing. Convenience, compact structure, simple, easy adjustment, large flow capacity, easy maintenance, high repeatability, etc.
[0033] The rotor 2 of the axial distribution valve core and the stator 4 of the axial distribution valve body pass through five sealing rings 3 from top to bottom in the axial direction to form four...
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The invention relates to an axial distribution proportional reversing valve, which comprises an axial distribution valve body stator and an axial distribution valve core rotor rotatably installed in the inner cavity of the axial distribution valve body stator, the axial distribution valve body stator and the axial distribution valve The core rotor is divided into four non-connected sealing areas by five sealing rings arranged in sequence from top to bottom, and the working oil port A, working oil port B, The oil supply port and the oil return port, the working oil port A and the working oil port B are respectively connected with the corresponding external actuators, the oil supply port and the oil return port are respectively connected with the external oil source, and the shaft distribution valve core An oil supply channel and an oil return channel are opened axially on the rotor. Compared with the prior art, the invention has the advantages of proportional linear shaft flow distribution, non-contact reduction of wear, high expansibility, large flow capacity, and easy maintenance.
Description
technical field [0001] The invention relates to the technical field of fluid control, in particular to an axial distribution proportional reversing valve. Background technique [0002] The existing switch electromagnetic reversing valve, its double-coil electromagnetic valve structure mainly adopts lock nut + electromagnetic coil + core tube + spring + gasket + valve core + valve body + gasket + spring + core tube + electromagnetic coil + lock nut structure; the single coil solenoid valve structure mainly uses the structure of lock nut + electromagnetic coil + core tube + spring + gasket + valve core + valve body + gasket + spring + end cover. [0003] According to the type of power supply voltage, it can be divided into DC and AC. The power supply voltage value can be selected in a wide range. The movement of the valve core in the valve body is mainly supported by the hydraulic oil film. Oil pollution particles passing through the gap between the valve core and the valve bo...
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IPC IPC(8): F15B13/02F15B13/042F16K11/085F16K3/26F16K3/314
CPCF15B13/021F15B13/0406F15B13/042F16K11/0856F16K3/262F16K3/314F15B2013/0413
Inventor 何斌张玄訚耀保刘小雪
Owner TONGJI UNIV