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An adjustable high-speed linear stroke electric valve with end face cam

A technology of end face cams and electric valves, which is applied to valve details, valve devices, engine components, etc., can solve the problems of limiting the response speed and switching frequency of electric valves, reducing service life, etc., and achieve the effect of improving service life and high-speed commutation

Inactive Publication Date: 2016-02-24
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current linear stroke electric valve mainly uses a rotary motor to drive the lead screw or a linear motor to drive the valve core to reciprocate. Especially when switching at high speed, it is necessary to control the motor to rotate forward and reverse frequently, which limits the response speed and switching of the electric valve. frequency, reducing the service life

Method used

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  • An adjustable high-speed linear stroke electric valve with end face cam
  • An adjustable high-speed linear stroke electric valve with end face cam
  • An adjustable high-speed linear stroke electric valve with end face cam

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Embodiment Construction

[0011] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0012] Such as figure 1 , figure 2 As shown, an adjustable straight-stroke high-speed electric valve adopting an end face cam includes a motor 1, the motor 1 is fixed on the upper end cover 2, the valve body 5 is fixedly connected with the upper end cover 2 and the lower end cover 6, and is sealed by a sealing ring, The spool 9 and the valve body 5 form a sliding and sealing fit through the sealing ring. The lower part of the spool 9 is guided by the guide plane 7 or the guide key provided on the lower end cover 6, and the spool 9 is limited to reciprocate in the axial direction. The upper part of the spool 9 It is connected to the bottom of the end cam 10, and the end cam 10 is installed in the upper end cover 2 through the bearing 3. The outer ring of the bearing 3 is positioned by the upper end cover 2 and the valve body 5, and the inner ring is installe...

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Abstract

The invention provides an adjustable high-speed straight-stroke electric valve adopting an edge cam. The adjustable high-speed straight-stroke electric valve comprises the edge cam connected with a motor, wherein the bottom surface of the edge cam is a curved surface which is up-and-down with three periods; the curved surface is provided with spherical grooves; three steel balls are respectively arranged in three ball grooves, which are positioned in a same horizontal plane, at the upper end of a valve core; the three steel balls are embedded into the spherical grooves under the effects of reset springs between the valve core and a lower end cover; the edge cam is driven to rotate by virtue of a motor; under the effect of rotation of the edge cam and the reset springs, the three steel balls perform relative movement in the spherical grooves of the edge cam so as to drive the valve core to reciprocate axially together; the edge cam is driven to turn a circle by virtue of the motor, and the valve core reciprocates for tree times. The adjustable high-speed straight-stroke electric valve is capable of realizing high-speed reversing; by virtue of adjusting the rotation speed of the motor, the switching frequency is controlled, and the service life of the electric valve is prolonged.

Description

technical field [0001] The invention belongs to the technical field of straight-stroke electric valves, in particular to an adjustable straight-stroke high-speed electric valve adopting an end face cam. Background technique [0002] The current linear stroke electric valve mainly uses a rotary motor to drive the lead screw or a linear motor to drive the valve core to reciprocate. Especially when switching at high speed, it is necessary to control the motor to rotate forward and reverse frequently, which limits the response speed and switching of the electric valve. frequency, reducing the service life. Contents of the invention [0003] In order to overcome the above-mentioned shortcomings of the prior art, the object of the present invention is to provide an adjustable straight-stroke high-speed electric valve using an end face cam, which can realize the reversing operation of the straight-stroke electric valve while keeping the rotation direction of the motor unchanged. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/04
CPCF16K31/047
Inventor 李靖祥赵升吨郭桐范淑琴张琦陈超
Owner XI AN JIAOTONG UNIV
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