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Three-position four-way electromagnetic ball type reversing valve

A three-position, four-way, reversing valve technology, which is applied to servo motor components, mechanical equipment, fluid pressure actuators, etc., can solve the problems of electromagnetic reversing valve blocking, jamming, drifting, etc.

Active Publication Date: 2015-05-20
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can solve the problems of blockage, jamming and drift caused by double-nozzle baffle electro-hydraulic servo valves, jet pipe electro-hydraulic servo valves, proportional valves, and electromagnetic reversing valves

Method used

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  • Three-position four-way electromagnetic ball type reversing valve
  • Three-position four-way electromagnetic ball type reversing valve
  • Three-position four-way electromagnetic ball type reversing valve

Examples

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Embodiment Construction

[0032] figure 1 It is the front view of the structure of the three-position four-way electromagnetic logic ball reversing valve of the present invention, which is composed of two sets of valve bodies with the same internal structure, 1 represents valve body A, and 25 represents valve body B. Each group of valve bodies includes pilot stage and power amplifier stage respectively, and the parts include bracket, piston, valve sleeve, screw, O-ring, steel ball, spring, cock, valve seat, electromagnet, ejector rod, upper cover and manual button .

[0033] Such as image 3 As shown, the valve body A includes one hydraulic pilot stage and two hydraulic power amplifier stages, 2 represents the electromagnet A, 3 represents the manual button A, 4 represents the shell A of the valve body A, 5 represents the piston A1, and 6 represents the Seat A1, 7 represents O-ring A3, 8 represents spring A1, 9 represents cock A2, 10 represents steel ball A3, 11 represents cock A3, 12 represents spr...

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Abstract

A three-position four-way electromagnetic ball type reversing valve comprises electromagnets and valve bodies. A hydraulic pilot stage and a hydraulic power amplifier stage are arranged in each valve body; each hydraulic pilot stage comprises a valve base, an ejector rod is arranged in each valve base, the two ends of each ejector rod are provided with two steel balls and a cock respectively, and each hydraulic pilot stage is arranged at the output end of the corresponding electromagnet. Each hydraulic power amplifier stage is divided into two paths which each comprise a valve base, steel balls, a valve sleeve, a spring and a piston, and different power flows can be obtained by selecting the steel balls of different diameters and the valve bodies of different diameters. Non-leakage and non-drifting control over zero closing of the reversing valve is achieved, the disjointed radial and axial clearance between the steel balls and the valve bases is 1.2 mm, non-clogging and non-clamping flow control is achieved, and the problems of clogging, clamping and drifting frequently happening to double nozzle baffle type electro-hydraulic servo valves, jet pipe type electro-hydraulic servo valves, proportional valves and electromagnetic directional valves are solved.

Description

technical field [0001] The invention relates to a three-position four-way electromagnetic logic ball type reversing valve, which is used in an industrial hydraulic control system to control the reciprocating reversing movement of an oil cylinder and keep it in a stopped state, and can also be used to control the forward and reverse rotation of a hydraulic motor and keep it stopped state. Background technique [0002] At present, the hydraulic control valves used in hydraulic systems at home and abroad are mainly double-nozzle baffle electro-hydraulic servo valves, jet tube electro-hydraulic servo valves, proportional valves, three-position four-way electromagnetic reversing valves, etc. The working principle of double-nozzle baffle electro-hydraulic servo valve and jet pipe electro-hydraulic servo valve is to use micro-current to control the deflection of the torque motor to change the gap between the nozzle and the baffle, and the pressure difference generated by the symmet...

Claims

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Application Information

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IPC IPC(8): F15B13/02
CPCF15B13/02
Inventor 袁庆斌龚安友江志农张进杰
Owner BEIJING UNIV OF CHEM TECH
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