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Direct-acting rolling actuator for travel switch

A travel switch, actuator technology, applied in electrical switches, electrical components, circuits, etc., can solve the problems of incomplete protection function, action failure, mechanism stuck, etc., to improve service life, reliable sealing, overcome The effect of sealing

Active Publication Date: 2009-06-03
SHANGHAI JINGYI ELECTRICAL APPARATUS FACTORY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, although many important control occasions have been replaced by foreign brand products, because the protection function of this type of product is not perfect at present, it is more common that the mechanism is stuck due to abnormal operation on site, and the action failure leads to failure.

Method used

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  • Direct-acting rolling actuator for travel switch

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Experimental program
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Effect test

Embodiment Construction

[0014] The present invention will be further described below in conjunction with accompanying drawing.

[0015] Such as figure 1 As shown, a direct-acting rolling actuator for travel switches includes a transmission mechanism, a push rod 1, and a casing 2 with upper and lower openings. The transmission mechanism includes a shaft with axial grooves at both ends of the upper and lower ends. 3. The shaft 3 is installed in the casing 2, and a roller 4 is riveted in the groove at its upper end through a pin shaft, and is exposed outside the upper opening of the casing 2. The upper end of the push rod 1 is connected to the shaft The lower ends of 3 are fixed to each other, and the openings at both ends of the housing 2 are adapted to the shaft 3 and the push rod 1 respectively.

[0016] The groove at the lower end of the shaft 3 is provided with a stepped inner wall, and the upper end of the push rod 1 is fixed in the groove by a support member 5 fixed to the stepped inner wall. T...

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PUM

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Abstract

The invention relates to a direct-acting rolling actuator for a travel switch, comprising a transmission mechanism, a pushing rod and a casing with an upper opening and a lower opening. The transmission mechanism comprises a shaft. An upper end and a lower end of the shaft are respectively provided with an axial groove. The shaft is perforated in the casing. A roller is riveted in the groove at the upper end by a pin and is exposed to the upper opening of the casing. An upper end of the pushing rod is mutually fixed with the lower end of the shaft. The openings at the two ends of the casing are respectively adapted to the shaft and the pushing rod. Compared with the prior art, the direct-acting rolling actuator for the travel switch has the characteristics of simple structure, stable performance, strong reliability, etc.

Description

technical field [0001] The invention relates to a travel switch actuator, in particular to a direct-acting rolling actuator for a travel switch. Background technique [0002] The limit switch can convert mechanical motion into electrical signal, which is used to control mechanical action or program control, so it is widely used in control systems. In practical applications, there are defects such as unstable performance and unreliable work. In recent years, although many important control occasions have been replaced by foreign brand products, because the protection function of this type of product is not perfect at present, it is more common that the mechanism is stuck due to abnormal operation on site, and the action failure leads to failure. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a direct-acting rolling actuator for travel switches with simple structure, stable performance and high reliability in ord...

Claims

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Application Information

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IPC IPC(8): H01H13/12H01H13/14H01H13/20
Inventor 李则贵
Owner SHANGHAI JINGYI ELECTRICAL APPARATUS FACTORY CO LTD