Threaded cartridge electrical control bidirectional pressure compensation flow valve
A two-way pressure, threaded insertion technology, applied in the direction of fluid pressure actuators, servo motor components, mechanical equipment, etc., can solve the problems of low control response flexibility, difficult system integration, large installation volume, etc., to ensure concentricity requirements, low design cost, and compact size
Active Publication Date: 2013-10-30
NINGBO KETAI HYDRAULIC CO LTD
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Problems solved by technology
[0002] In workbench systems that require smooth lifting of circuits such as mobile equipment, medical equipment, and industrial vehicles, it is often necessary to realize the two-way and two-speed pressure compensation function. At present, the embedded structure is often used, and two pressure compensation flow valves are combined. , realize two-way pressure compensation, and further realize two-speed electric control, it is necessary to add a two-way solenoid valve control on this basis to form a functional valve block. Such a structure leads to relatively large installation volume, difficult system integration, and complicated processing. And the flexibility of controlling the reaction is low, and the overall cost is high
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[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0033] Such as figure 1 As shown, the threaded plug-in electronically controlled two-way pressure compensation flow valve of this embodiment includes a screw sleeve 2, a magnetic isolation tube 22, a moving iron 4, a reset member 73, a coil 21, a fixed iron 3, a valve sleeve 1, and a main valve core 5. Compensation spool 6, spring seat 8, front spring 72 and rear spring 71.
[0034] The screw sleeve 2 is hollow to form an inner cavity, and the magnetic isolation tube 22 is provided with a moving iron 4 capable of moving axially, a fixed iron 3 is arranged at the rear end of the magnetic isolation tube 22, and a coil 21 is wrapped around the fixed iron 3 and the magnetic isolation tube On the outside of 22, after electrification, the fixed 3 can generate a magnetic field that attracts the moving iron 4 to move backward, and the reset member 73...
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The invention discloses a threaded cartridge electrical control bidirectional pressure compensation flow valve, which comprises a thread insert, a plunger tube, a movable core, a fixed core, a valve bush, a main valve core, a compensation valve core, a spring seat, a front spring and a rear spring, wherein the movable core which can axially move is arranged inside the plunger tube; the valve bush is provided with an axial opening on the front end part and a first oil port and a second oil port which are radially formed in the middle at intervals; the front end part of the main valve core is axially provided with a through slot; the side part of the through slot is provided with a first opening communicated with the first oil port and a second opening communicated with the second oil port; a blocking ring radially protrudes close to the first opening; a front axial groove and a rear axial groove are formed at openings at two ends of the compensation valve core; and orifices communicated with the front axial groove and the rear axial groove are formed in the middle. Compared with the prior art, the invention has the advantages that: the flow valve is compact in volume, multifunctional in integral structure, convenient to assemble and disassemble, reliable and stable in operation for long-term use and low in repair rate; and compared with the conventional mounting structure, the valve has lower overall cost and sensitive response.
Description
technical field [0001] The invention relates to an electronically controlled two-way pressure compensating flow valve, in particular to a threaded plug-in electronically controlled two-way pressure compensating flow valve, which can realize two-speed control and a hydraulic circuit with pressure compensation function, and can be applied to mobile equipment and industrial Vehicles and other hydraulic circuits. Background technique [0002] In workbench systems that require smooth lifting of circuits such as mobile equipment, medical equipment, and industrial vehicles, it is often necessary to realize the two-way and two-speed pressure compensation function. At present, the embedded structure is often used, and two pressure compensation flow valves are combined. , realize two-way pressure compensation, and further realize two-speed electric control, it is necessary to add a two-way solenoid valve control on this basis to form a functional valve block. Such a structure leads to...
Claims
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IPC IPC(8): F15B13/02
Inventor 朱国胜
Owner NINGBO KETAI HYDRAULIC CO LTD