CN2690697Y - Electric actuator - Google Patents
Electric actuator Download PDFInfo
- Publication number
- CN2690697Y CN2690697Y CN 200420045118 CN200420045118U CN2690697Y CN 2690697 Y CN2690697 Y CN 2690697Y CN 200420045118 CN200420045118 CN 200420045118 CN 200420045118 U CN200420045118 U CN 200420045118U CN 2690697 Y CN2690697 Y CN 2690697Y
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- China
- Prior art keywords
- motor
- utility
- connector
- model
- electric actuator
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- 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.)
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Abstract
The utility model relates to an electric actuator which belongs to an electric control opening device of an industrial automatic valve. The utility model comprises a motor, a connector and a connecting arm. The utility model is characterized in that the motor is a stepless speed change motor; the motor is connected with a driving rod by a connecting shaft; the other end of the driving rod is connected with a connecting rod by the connector; the connecting arm is connected to the connecting rod; the connector is a sleeve barrel; the connecting end of the driving rod and the connector is provided with screw threads. The utility model has the advantages of simple structure, small volume, light weight, easy debugging and low failure rate, and the efficiency of a transmission system of the utility model reaches as high as more than 90 percents. The utility model can not be damaged when superpressure or over current situations occur, and thus, use is safe and reliable. The utility model can be widely used for the electric control of various industrial valves.
Description
Technical field:
Of the present utility modelly relate to a kind of electric actuator, it belongs to a kind of electronic control opening device of industrial automatic valve.
Background technique:
The electric actuator of existing industrial automatic valve is made up of servoamplifier, electric pneumatic converter, two-phase actuating motor, retarder and actuator usually, the electric actuator complex structure of this class, bulky, debug difficulties, rate of fault height, transmission system efficiency are low, and its transmission system efficiency only has 30%.Recorded and narrated a kind of electric actuator in the Chinese patent the 00261473.1st, adopted structures such as clutch and gear in this technological scheme, still there is complex structure in this technology, the problem that transmission efficiency is low.
Summary of the invention:
The purpose of this utility model is to provide a kind of simple in structure, rate of fault is low, transmission efficiency is high electric actuator.
The purpose of this utility model is achieved in that
A kind of electric actuator, it comprises a motor, a connector and a link arm, described motor is an infinite variable speed motor, described motor is connected with a driveshaft by a coupling shaft, the other end at a described driveshaft is connected with a connecting rod by connector, and described link arm is connected on the connecting rod; Described connector is a sleeve, and the connecting end of described driveshaft and connector is provided with screw thread.
Outside described motor, be provided with a sheath.
The place is provided with bearing bracket at described live axle.
Described motor and coupling shaft part all are supported on the supporting and positioning device.
Described supporting and positioning device comprises that one is installed in the Vertical location axle on the base, and described Vertical location axle places a Vertical location axle sleeve, connects a supporting plate on described Vertical location axle, and described motor and coupling shaft partly are supported on the described supporting plate.
The utility model is simple in structure, and volume is little, and is in light weight, and debugging easily, rate of fault is low, its transmission system efficiency can be up to more than 90%.When superpressure and overcurrent condition occurring, can not damage, safe and reliable.The utility model can use widely in the electronic control of various industrial valves.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model
Accompanying drawing 2 is a perspective view of the present utility model
Embodiment:
Be embodiment of the present utility model with accompanying drawing 1,2 below, the utility model be further detailed:
In the present embodiment, the utility model comprises three parts, and a part is a motor 11, and motor 11 is an infinite variable speed motor, is provided with a sheath 12 outside described motor 11, and sheath mount connects between motor 11 and the sheath 12.Second portion is a driving mechanism, it comprises driveshaft 7, connector 6, connecting rod 4 and link arm 1, described motor 11 is connected with a driveshaft 7 by coupling shaft 17, the other end at a described driveshaft 7 is connected with a connecting rod 4 by connector 6, and described link arm 1 is connected on the connecting rod 4.Connector 6 is a telescoping structure, and driveshaft 7 and connecting rod 4 are deep into the connector 6 from the two ends of connector 6 respectively, and described driveshaft 7 is provided with screw thread with the connecting end of connector 6, forms the screw thread transmission.Fixing between connecting rod 4 and the connector 6 by back of the body cap 5.Third part is a supporting mechanism, below described motor 11, be provided with a supporting and positioning device 16, described supporting and positioning device 16 comprises that one is installed in the Vertical location axle 14 on the base, described Vertical location axle 14 places a Vertical location axle sleeve 15, connect a supporting plate 13 on described Vertical location axle 14, described motor 11 and coupling shaft partly are supported on the described supporting plate 13.7 places are provided with bearing bracket 8 at described live axle, and bearing bracket 8 also is supported on the supporting plate 13.Sheath mount 10 also is fixed on the supporting plate 13.
Claims (5)
1, a kind of electric actuator, it comprises a motor (11), a connector (6) and a link arm (1), it is characterized in that described motor (11) is an infinite variable speed motor, described motor (11) is connected with a driveshaft (7) by a coupling shaft (17), the other end at a described driveshaft (7) is connected with a connecting rod (4) by connector (6), and described link arm (1) is connected on the connecting rod (4); Described connector (6) is a sleeve, and described driveshaft (7) is provided with screw thread with the connecting end of connector (6).
2, the electric actuator described in claim 1 is characterized in that being provided with a sheath (12) outside described motor (11).
3, the electric actuator described in claim 1 is characterized in that locating to be provided with bearing bracket (8) at described live axle (7).
4, the electric actuator described in claim 1 is characterized in that described motor (11) and coupling shaft part all is supported on the supporting and positioning device (16).
5, the electric actuator described in claim 4, it is characterized in that described supporting and positioning device (16) comprises that one is installed in the Vertical location axle (14) on the base, described Vertical location axle (14) places a Vertical location axle sleeve (15), go up connection one supporting plate (13) at described Vertical location axle (14), described motor (11) and coupling shaft partly are supported on the described supporting plate (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420045118 CN2690697Y (en) | 2004-04-20 | 2004-04-20 | Electric actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420045118 CN2690697Y (en) | 2004-04-20 | 2004-04-20 | Electric actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2690697Y true CN2690697Y (en) | 2005-04-06 |
Family
ID=34672019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420045118 Expired - Lifetime CN2690697Y (en) | 2004-04-20 | 2004-04-20 | Electric actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2690697Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566251B (en) * | 2009-01-15 | 2010-12-01 | 浙江罗托克执行器有限公司 | Linear stroke transmission device of electric valve actuator |
-
2004
- 2004-04-20 CN CN 200420045118 patent/CN2690697Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566251B (en) * | 2009-01-15 | 2010-12-01 | 浙江罗托克执行器有限公司 | Linear stroke transmission device of electric valve actuator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140420 Granted publication date: 20050406 |