CN203215019U - Electric actuator - Google Patents
Electric actuator Download PDFInfo
- Publication number
- CN203215019U CN203215019U CN 201320103414 CN201320103414U CN203215019U CN 203215019 U CN203215019 U CN 203215019U CN 201320103414 CN201320103414 CN 201320103414 CN 201320103414 U CN201320103414 U CN 201320103414U CN 203215019 U CN203215019 U CN 203215019U
- Authority
- CN
- China
- Prior art keywords
- output shaft
- motor
- electric actuator
- lower limit
- cam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Electrically Driven Valve-Operating Means (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses an electric actuator which comprises a housing, wherein a controller is arranged in the housing, a motor is arranged at the right side of the controller and drives an output shaft through a belt pulley to rotate, an upper limit switch and a lower limit switch are arranged at one side of the output shaft, a contact is arranged on each of the upper limit switch and the lower limit switch, a corresponding upper limit cam and a corresponding lower limit cam are arranged at the other side of the output shaft, and a salient point is arranged on each of the upper limit cam and the lower limit cam. By using the electric actuator provided by the utility model, the output shaft can be effectively prevented from being damaged due to continuous working of the motor after the valve is closed or opened, and the service life of the actuator is prolonged.
Description
Technical field
The utility model relates to a kind of electric actuator.
Background technique
Electric actuator is a kind of drive unit that straight line can be provided or rotatablely move, and it utilizes driving source and carry out work under the control signal effect.At present, traditional electric actuator makes motor keep working state in valve closes or after opening easily, causes the output shaft continuous firing and damages, and has shortened the working life of final controlling element.
The model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of electric actuator is provided, and can effectively prevent valve closes or opens the rear motor continuous firing and damage output shaft, prolongs the working life of final controlling element.
Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs:
A kind of electric actuator, comprise shell, be provided with controller in the shell, the controller right side is provided with motor, motor drives output shaft by belt pulley and rotates, and described output shaft one side is provided with the upper and lower limit bit switch, all is provided with a contact on the upper and lower limit bit switch, the output shaft opposite side is provided with corresponding upper and lower spacing cam, all is provided with a salient point on the upper and lower spacing cam.
The beneficial effect that the utlity model has: when the salient point on the limit cam contacts with contact on the limit switch, salient point extruding contact, make the limit switch closure, the limit switch closure, motor is opened circuit, can effectively prevent from damaging output shaft because of the motor continuous firing after valve closes or the unlatching, prolong the working life of final controlling element.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic representation of limit switch and limit cam.
Among the figure: shell 1, controller 2, motor 3, output shaft 4, upper limit position switch 5, lower position switch 6, upper limit cam 7, lower limit cam 8, contact 9, salient point 10.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
As shown in Figure 1 and Figure 2: a kind of electric actuator, comprise shell 1, be provided with controller 2 in the shell 1, controller 2 right sides are provided with motor 3, motor 3 drives output shaft 4 by belt pulley and rotates, and described output shaft 4 one sides are provided with upper and lower limit bit switch 5,6, all are provided with a contact 9 on the upper and lower limit bit switch 5,6, output shaft 4 opposite sides are provided with corresponding upper and lower spacing cam 7,8, all are provided with a salient point 10 on the upper and lower spacing cam 7,8.
When the utility model uses, the driven gear axle rotates when main shaft arrives upper limit, limit cam puts in place, when the salient point 10 on the limit cam contacts with contact 9 on the limit switch, salient point 10 extruding contacts 9 make the limit switch closure, the limit switch closure, motor is opened circuit, effectively prevented from damaging output shaft because of the motor continuous firing after valve closes or the unlatching, prolonged the working life of final controlling element.
Claims (1)
1. electric actuator, comprise shell (1), be provided with controller (2) in the shell (1), controller (2) right side is provided with motor (3), motor (3) takes output shaft (4) to by belt pulley and rotates, it is characterized in that: described output shaft (4) one sides are provided with upper and lower limit bit switch (5,6), the upper and lower limit bit switch all is provided with a contact (9) on (5,6), output shaft (4) opposite side is provided with corresponding upper and lower spacing cam (7,8), and upper and lower spacing cam all is provided with a salient point (10) on (7,8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320103414 CN203215019U (en) | 2013-03-07 | 2013-03-07 | Electric actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320103414 CN203215019U (en) | 2013-03-07 | 2013-03-07 | Electric actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203215019U true CN203215019U (en) | 2013-09-25 |
Family
ID=49204558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320103414 Expired - Fee Related CN203215019U (en) | 2013-03-07 | 2013-03-07 | Electric actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203215019U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333198A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Electric actuator structure |
-
2013
- 2013-03-07 CN CN 201320103414 patent/CN203215019U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333198A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Electric actuator structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20140307 |