CN211901747U - Output shaft fault positioning device of electric actuator - Google Patents
Output shaft fault positioning device of electric actuator Download PDFInfo
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- CN211901747U CN211901747U CN201922499510.9U CN201922499510U CN211901747U CN 211901747 U CN211901747 U CN 211901747U CN 201922499510 U CN201922499510 U CN 201922499510U CN 211901747 U CN211901747 U CN 211901747U
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- adjusting screw
- output shaft
- nut
- adjusting
- electric actuator
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Abstract
The utility model relates to a power take-off, in particular to electric actuator's output shaft fault locating device. The utility model provides a following technical scheme: the utility model provides an electric actuator's output shaft fault locating device, is including adjusting screw and cover locate adjusting screw and be the nut that the screw thread connects soon rather than locating adjusting screw, and adjusting screw is equipped with first sealing washer including adjusting part and threaded screw part, between the inner wall of nut and adjusting screw's the adjusting part's the outer peripheral face, and the nut is located and is equipped with the second sealing washer on the axial terminal surface of screw part one end. Adopt above-mentioned technical scheme, provide an output shaft fault location device who guarantees leakproofness, extension sealing washer life's electric actuator.
Description
Technical Field
The utility model relates to a power take-off, in particular to electric actuator's output shaft fault locating device.
Background
The electric actuator is a special driving tool for converting electric energy into mechanical energy. The traditional electric actuating device mainly comprises a shell, a motor arranged in the shell, a gear set linked with the motor and an output shaft linked with the gear set, wherein the output shaft is a power output end of the electric actuating device and can be directly linked with a driven object such as a valve.
When the electric actuating device or an object driven by the electric actuating device breaks down and needs to stop providing output actuating force, in order to prevent the motor from continuously driving the output shaft, the output shaft can be positioned by the output shaft fault positioning device to prevent the output shaft from rotating.
Traditional output shaft fault location device is that the mounting hole of output shaft department and the adjusting screw who installs in the mounting hole are seted up to the shell, in order to prevent that outside medium from entering into the shell by the mounting hole, is equipped with the sealing washer between adjusting screw and the mounting hole. However, the sealing ring is directly arranged between the adjusting screw rod and the mounting hole, and threads on the adjusting screw rod can cut the sealing ring in different degrees in the adjusting process, so that the sealing ring is easily scrapped and is not sealed.
Disclosure of Invention
The utility model provides a guarantee leakproofness, extension sealing washer life's electric actuator's output shaft fault locating device to prior art exists.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an output shaft fault locating device of electronic final controlling element which characterized in that: the adjusting screw comprises an adjusting screw and a nut which is sleeved outside the adjusting screw and is in threaded screwed connection with the adjusting screw, the adjusting screw comprises an adjusting part and a screw part with threads, a first sealing ring is arranged between the inner wall of the nut and the outer peripheral surface of the adjusting part of the adjusting screw, and a second sealing ring is arranged on the axial end face of the nut, which is positioned at one end of the screw part.
By adopting the technical scheme, the adjusting screw is used as a positioning piece for locking and positioning the output shaft in the electric actuating device, the nut is sleeved outside the adjusting screw and locked with the adjusting screw, and can be used as a carrier of a sealing piece, so that the sealing between the adjusting screw and the output shaft fault positioning device and the sealing between the output shaft fault positioning device and the mounting hole can be realized, and the first sealing ring and the second sealing ring are not directly contacted with the thread part, so that the first sealing ring and the second sealing ring cannot be damaged in the adjusting process of the adjusting screw, the sealing performance is ensured, and the service lives of the first sealing ring and the second sealing ring are prolonged.
The utility model discloses further set up to: the nut is equipped with adjusting screw locating part for the other end department that sets up second sealing washer one end, and this adjusting screw locating part is the elasticity rand, is equipped with the recess that supplies this elasticity rand joint on the inner wall of nut.
By adopting the technical scheme, the elastic clamping ring can limit the adjusting stroke of the adjusting screw rod opposite to the output shaft, and the adjusting screw rod is prevented from being separated from the nut by excessively rotating the adjusting screw rod.
The present invention will be further described with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic view of a partial structure of the embodiment of the present invention combined with an electric actuator.
Detailed Description
As shown in fig. 1 and 2, the output shaft fault location device of an electric actuator includes an adjusting screw 1 and a nut 2 sleeved outside the adjusting screw 1 and screwed with the adjusting screw 1 in a threaded manner, the adjusting screw 1 includes an adjusting portion 11 and a screw portion 12 with threads, a first sealing ring 3 is disposed between an inner wall of the nut 2 and an outer peripheral surface of the adjusting portion 11 of the adjusting screw 1, and a second sealing ring 4 is disposed on an axial end surface of the nut 2 at one end of the screw portion 12. In the above scheme, the adjusting screw 1 is used as a positioning element for locking and positioning the output shaft 6 in the electric actuating device, the nut 2 is sleeved outside the adjusting screw 1 and locked with the adjusting screw 1, and can be used as a carrier of a sealing element, so that sealing between the adjusting screw 1 and the output shaft fault positioning device and sealing between the output shaft fault positioning device and the mounting hole 71 can be realized, the first sealing ring 3 and the second sealing ring 4 are not directly contacted with the thread, therefore, in the adjusting process of the adjusting screw 1, the first sealing ring 3 and the second sealing ring 4 cannot be damaged, sealing performance is ensured, and meanwhile, the service lives of the first sealing ring 3 and the second sealing ring 4 are prolonged. It should be noted that it is possible that the first sealing ring 3 can be placed on the inner wall of the nut 2 or on the outer circumference of the adjusting part 11 of the adjusting screw 1, and the second sealing ring 4 can be placed on the nut 2 or on the housing 7 in the electric actuator.
In the embodiment of the present invention, the nut 2 is provided with an adjusting screw locating part 5 at the other end corresponding to the end of the second sealing ring 4, the adjusting screw locating part 5 is an elastic clamping ring, and a groove 21 for the elastic clamping ring to be clamped is provided on the inner wall of the nut 2. The elastic retainer ring can limit the adjusting stroke of the adjusting screw rod 1 opposite to the output shaft, and the adjusting screw rod 1 is prevented from being separated from the nut 2 due to excessive rotation of the adjusting screw rod 1.
Claims (2)
1. The utility model provides an output shaft fault locating device of electronic final controlling element which characterized in that: the adjusting screw comprises an adjusting screw and a nut which is sleeved outside the adjusting screw and is in threaded screwed connection with the adjusting screw, the adjusting screw comprises an adjusting part and a screw part with threads, a first sealing ring is arranged between the inner wall of the nut and the outer peripheral surface of the adjusting part of the adjusting screw, and a second sealing ring is arranged on the axial end face of the nut, which is positioned at one end of the screw part.
2. The output shaft fault location device of an electric actuator according to claim 1, wherein: the nut for setting up the other end department of second sealing washer one end be equipped with adjusting screw locating part, this adjusting screw locating part is the elasticity rand, is equipped with the recess that supplies this elasticity rand joint on the inner wall of nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922499510.9U CN211901747U (en) | 2019-12-31 | 2019-12-31 | Output shaft fault positioning device of electric actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922499510.9U CN211901747U (en) | 2019-12-31 | 2019-12-31 | Output shaft fault positioning device of electric actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211901747U true CN211901747U (en) | 2020-11-10 |
Family
ID=73297156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922499510.9U Active CN211901747U (en) | 2019-12-31 | 2019-12-31 | Output shaft fault positioning device of electric actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211901747U (en) |
-
2019
- 2019-12-31 CN CN201922499510.9U patent/CN211901747U/en active Active
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