CN201412581Y - Double-bearing shaft intelligent electric actuator - Google Patents
Double-bearing shaft intelligent electric actuator Download PDFInfo
- Publication number
- CN201412581Y CN201412581Y CN2009201216563U CN200920121656U CN201412581Y CN 201412581 Y CN201412581 Y CN 201412581Y CN 2009201216563 U CN2009201216563 U CN 2009201216563U CN 200920121656 U CN200920121656 U CN 200920121656U CN 201412581 Y CN201412581 Y CN 201412581Y
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- China
- Prior art keywords
- worm
- motor
- worm screw
- gear
- electric motor
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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.)
- Expired - Fee Related
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Abstract
The utility model relates to a double-bearing shaft intelligent electric actuator, which comprises a casing, an electric motor, a speed reducing mechanism, a control box, a control circuit board mechanism, a display screen, a torque sensor component, a patch board and an end cover. The speed reducing mechanism is formed by a worm wheel-worm rod mechanism, the worm rod is installed inside the casing via bearings, the worm wheel is fixed on a main shaft, and the torque sensor component is installed on the outer side of the worm rod. The electric actuator is mainly characterized in that the wormrod and a rotary shaft of the electric motor are connected by a pin, and one end of the worm rod near a gear and a connection end of the rotary shaft of the electric motor are respectively supported by the bearings. The intelligent electric actuator has the advantages of shortening connection span between the worm rod and the electric motor, reducing elastic deformation of the rotary shaft, and having low transmission noise, high transmission accuracy and transmission efficiency, convenient maintenance and the like, and is adaptable to adjusting control devices of various valves.
Description
Technical field
The utility model relates to the electric actuator that a kind of control valve opens and closes.
Background technique
In the prior art, adopt the intelligent electric activator product of microprocessor technical control and regulation valve a lot, its structure generally comprises motor, the digital operator that shows of band, reducing gear, position feedback mechanism, function translator, torque transducer etc., it can realize the Flow characteristics correction of various valves, and can carry out online detection, diagnosis, malfunction alarm to the working condition of electric actuator.Reducing gear is made up of worm gear, worm transmission structure, worm screw and motor reel are structure as a whole or are fixedly connected on the motor rotary shaft, fixed installation torque transducer assembly on worm screw, in transmission process, worm screw produces axial displacement makes torque transducer produce torque signals.Subject matter is: the same shaft drive of worm screw and motor, and coupling shaft span between the two is big, and coupling shaft can the production resiliently deformable in the rotation process, and increase the transmission noise, reduce transmission accuracy and transmission efficiency, and also inconvenient maintenance, the manufacturing process complexity.
Summary of the invention
The purpose of this utility model is the problem that exists at prior art, provides that a kind of noise is little, the dual-supporting axle intelligent electric activator of degree of regulation and transmission efficiency height, inconvenient maintenance.
The technical solution of the utility model comprises housing, motor, reducing gear, control box, control circuit board mechanism, display screen, the torque transducer assembly, patchboard, end cap, motor, control box, control circuit board mechanism, end cap respectively by screw on housing, patchboard is fixedly mounted on the housing, each tenminal block on the patchboard is respectively by conducting wire and motor power guide line, the power supply of control circuit board mechanism and control signal end connect, reducing gear is made up of worm gear-endless screw mechanism, worm screw by Bearing Installation in housing, worm gear is fixed on the main shaft, the torque transducer assembly is installed on the worm screw outside, mainly be to be interconnected by pin between worm screw and the motor rotary shaft, nearly gear end of worm screw and motor rotary shaft connecting end adopt the bearing supporting respectively.
The utility model has the advantages that: worm screw and motor rotary shaft are that two discrete parts axially flexibly connect by assembling set, the nearly gear end of worm screw and adopt bearing supporting respectively with the motor rotary shaft connecting end, increased supporting point, shortened the span of being connected between worm screw and the motor, reduce the resiliently deformable of rotating shaft, reduce rotational noise, improve degree of regulation and transmission efficiency, easy to maintenance.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Dual-supporting axle intelligent electric activator as shown in Figure 1 comprises housing 1, motor 2, reducing gear, control box 10, control circuit board mechanism 7, display screen 9, torque transducer assembly 5, patchboard 6, end cap 12.Motor 2, control box 10, control circuit board mechanism 7, end cap 12 respectively by screw on housing 1.Patchboard 6 is fixedly mounted on the housing 1, and each tenminal block on the patchboard 6 is connected by the power supply and the control signal end of conducting wire with power control line, control circuit board mechanism 7 and the control module 17 of motor 2 respectively.Control circuit board mechanism 7 and control module 17 are fixedly installed on the housing 1 by fixing frame 8.Reducing gear is made up of worm gear-endless screw mechanism, and in housing 1, worm gear 3 is fixed on the main shaft 11 worm screw 4 by Bearing Installation.Torque transducer assembly 5 is installed on the outside of worm screw 4, when worm screw 4 is moved to the left, drive block 16 pushing torque sensor clusters 5, make torque transducer 15 stressed, the output torque signal is through recording moment of torsion after control circuit board mechanism 7 and control module 17 signal processing.Interconnect by pin 13 between the rotating shaft 14 of worm screw 4 and motor 2, the nearly gear end of worm screw and adopt bearing supporting respectively with the motor rotary shaft connecting end, both axially can relatively move, and when worm screw 4 moved axially, rotating shaft 14 axial positions of motor 2 maintained static.Display screen 9 is made up of two-part up and down, and top shows actual valve position, bottom display-object valve position, and be fixedly installed on the housing 1 by scaffold assembly 18.Tenminal block on the patchboard 6 is by an injection-compression molding, and tenminal block evenly is fixed on the patchboard 6, and both are connected firmly, good airproof performance.
Claims (1)
1, a kind of dual-supporting axle intelligent electric activator, comprise housing (1), motor (2), reducing gear, control box (10), control circuit board mechanism (7), display screen (9), torque transducer assembly (5), patchboard (6), end cap (12), motor (2), control box (10), control circuit board mechanism (7), end cap (12) respectively by screw on housing (1), patchboard (6) is fixedly mounted on the housing (1), each tenminal block on the patchboard (6) is respectively by conducting wire and motor (2) power control line, the power supply of control circuit board mechanism (7) and control signal end connect, reducing gear is made up of worm gear-endless screw mechanism, worm screw (4) by Bearing Installation in housing (1), worm gear (3) is fixed on the main shaft (11), torque transducer assembly (5) is installed on worm screw (4) outside, it is characterized in that being interconnected by pin (13) between worm screw (4) and motor (2) rotating shaft (14), the nearly gear end of worm screw (4) reaches with motor (2) rotating shaft (14) connecting end and adopts the bearing supporting respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201216563U CN201412581Y (en) | 2009-06-03 | 2009-06-03 | Double-bearing shaft intelligent electric actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201216563U CN201412581Y (en) | 2009-06-03 | 2009-06-03 | Double-bearing shaft intelligent electric actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201412581Y true CN201412581Y (en) | 2010-02-24 |
Family
ID=41714465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201216563U Expired - Fee Related CN201412581Y (en) | 2009-06-03 | 2009-06-03 | Double-bearing shaft intelligent electric actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201412581Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465471A (en) * | 2015-12-31 | 2016-04-06 | 天津宝恒流体控制设备股份有限公司 | Weighing type over-moment device applied to electric actuating mechanism |
-
2009
- 2009-06-03 CN CN2009201216563U patent/CN201412581Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465471A (en) * | 2015-12-31 | 2016-04-06 | 天津宝恒流体控制设备股份有限公司 | Weighing type over-moment device applied to electric actuating mechanism |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20140603 |