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Direct-coupled linear stroke electric actuator

An electric actuator, straight-stroke technology, applied in engine components, mechanical equipment, valve details, etc., can solve problems such as high cost, complex structure, and easy failure, and achieve the effect of simple structure

Inactive Publication Date: 2016-12-14
WSUNCTRL INTELLIGENT CONTROL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the straight stroke electric actuator generally cannot be directly connected with the valve, and the flange of the electric actuator must be connected with the flange of the valve through a special bracket, and a threaded coupling sleeve is also required to connect the electric actuator. The output rod of the mechanism is connected with the valve stem of the valve, which is not only complicated in structure and cumbersome to adjust, but also high in cost, ugly in appearance, and more importantly, prone to failure

Method used

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Embodiment Construction

[0010] according to Figure 1 to Figure 5 As shown, when the motor (1) drives the hollow shaft (4) to rotate through the worm (2), worm gear (3) and key (8), the slider (5) will make a straight line along the guide column (6) through thread engagement. Movement, due to the effect of guide column (6), has limited the rotation of slide block (5). Because the valve stem (12) of the valve (13) is installed together with the slide block (5), so the valve stem (12) is driven to do linear motion, and the function of opening and closing the valve is achieved.

[0011] Because the two ends of the guide post (6) are fixed by the first flange (7), therefore, the slide block (5) can only slide along the guide post (6) and cannot rotate.

[0012] Parts such as above-mentioned worm screw (2), worm gear (3), hollow shaft (4), slide block (5), guide post (6), first flange plate (7), key (8) are installed in casing ( In 9), the motor (1) is also installed on the box body (9), forming a direc...

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Abstract

The invention discloses a direct-coupled straight-stroke electric actuator with simple structure and convenient installation, which consists of a motor (1), a worm (2), a worm wheel (3), a hollow shaft (4), a slider (5), and a guide column (6), the first flange (7), key (8), box (9), valve stem nut (10), second flange (11), valve stem (12), valve (13) The structure is characterized in that the valve stem nut (10) is directly installed together with the valve stem (12); the hollow shaft (4) is provided with a thread structure inside, which engages with the thread on the outside of the slider (5); one end of the guide post (6) It is embedded in the guide groove of the slider (5), connected with the slider (5), and connected with the second flange (11) at the other end. The present invention can be directly installed together with the valve (13), and does not need components such as brackets, threaded coupling bushings, screw nuts, etc., nor does it need cumbersome adjustment links, and the structure is simpler and more beautiful.

Description

technical field [0001] The invention relates to an electric actuator, in particular to a direct-connected linear stroke electric actuator. Background technique [0002] In the prior art, the straight-stroke electric actuator generally cannot be directly connected with the valve, and the flange of the electric actuator must be connected with the flange of the valve through a special bracket, and a threaded coupling sleeve is also required to connect the electric actuator. The output rod of the mechanism is connected with the valve stem of the valve, which is not only complex in structure and cumbersome to adjust, but also high in cost, ugly in appearance, and more importantly, prone to failure. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a direct-coupled linear stroke electric actuator with simple structure and easy installation, which consists of a motor (1), a worm (2), a worm wheel (3), a hollow shaft ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/04F16K31/53
Inventor 郭宏
Owner WSUNCTRL INTELLIGENT CONTROL TECH CO LTD