CN201522499U - Motor speed sensor with elastic shaft coupling - Google Patents
Motor speed sensor with elastic shaft coupling Download PDFInfo
- Publication number
- CN201522499U CN201522499U CN2009201951761U CN200920195176U CN201522499U CN 201522499 U CN201522499 U CN 201522499U CN 2009201951761 U CN2009201951761 U CN 2009201951761U CN 200920195176 U CN200920195176 U CN 200920195176U CN 201522499 U CN201522499 U CN 201522499U
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- CN
- China
- Prior art keywords
- shaft coupling
- motor speed
- speed sensor
- spring
- coupling
- 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 - Lifetime
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Abstract
The utility model relates to a motor speed sensor with an elastic shaft coupling, comprising a body, wherein two ends of the body are respectively provided with a first connecting hole and a second connecting hole, wherein a shaft of an internal coder of the body passes through the first connecting hole. The motor speed sensor is also characterized by comprising the elastic shaft coupling; the middle part of the shaft coupling is provided with an elastic component and two ends thereof are provided with a first connecting end and a second connecting end; the first connecting end of the shaft coupling and a spring are arranged in the body; the first connecting end is connected with the shaft of the internal coder; and the second connecting end of the shaft coupling passes through the second connecting hole of the body. As the elastic shaft coupling is arranged between the internal coder of a train traction motor and the sensor, when the train traction motor runs at high speed, the elastic shaft coupling can reduce the contact force between the connecting shaft of the train traction motor and the motor speed sensor, improve the anti-seismic performance, thus ensuring and improving the whole measurement precision.
Description
Technical field
The utility model relates to a kind of train traction motor speed sensor device, the especially a kind of speed pickup that can regulate contact pressure between internal encoder and the coupling spindle, increase the service life.
Background technology
Motor speed sensor is used to detect the train traction rotating speed of motor, and makes the rotating speed unanimity of each traction electric machine by opertaing device.When speed pickup is unusual, traction electric machine can not turn round, and this can influence the safety of train operation, so speed pickup is the visual plant that guarantees the normal operation of train.Will bear very strong impact shock during motor speed sensor work, be easy to damage, the general life-span is about 3 years, therefore is necessary to design a kind of shockproof structure that is used for speed pickup, to increase the serviceable life of motor speed sensor.
The utility model content
The purpose of this utility model provides a kind of speed pickup that can regulate contact pressure between internal encoder and the coupling spindle, increase the service life.
The purpose of this utility model, can realize by following technical measures: a kind of motor speed sensor with spring coupling, comprise body, the both ends of described body all have first and second connecting holes; The axle of the internal encoder of wherein said body passes its first connecting hole; It is characterized in that: also comprise a spring coupling, this shaft coupling center section is an elastic parts, and two ends are first and second links; First link and the spring of described shaft coupling all are positioned at described body, and the axle of first link and described internal encoder is connected, and second link of described shaft coupling then passes through second connecting hole of described body.
During use, second link of shaft coupling is connected the output shaft of train traction motor; Owing to be provided with spring coupling between the internal encoder of train traction motor and sensor, when the train traction motor runs up, this spring coupling can reduce the coupling shaft of train traction motor and the contact force between motor speed sensor, improve shock resistance, thereby guarantee and improved overall measurement accuracy.
Described spring coupling is a MT type spring spiral steel shaft coupling, and the elastic parts of intermediate portion is a spring.MT type spring spiral steel shaft coupling has high moment of torsion rigidity and high sensitivity, the characteristic in zero revolution gap, and spring spiral steel has superpower correction, but high temperature, non-maintaining advantage, and it is suitable, the turning anticlockwise characteristic is identical, guarantees overall measurement accuracy better.
Have two symmetrically arranged breach that penetrate on the end wall of second link of described spring coupling, described breach is U-shaped hole groove.
On the basis of the above, the end face that body described in the utility model has second connecting hole is provided with flange, and convenience is connected with other equipment.
Described body outer wall is enclosed with shell.
The utlity model has following beneficial effect: because the utility model adopts the spring compliant mechanism reasonably to solve contact pressure problems of too between speed pickup internal encoder and the coupling spindle; Under the situation that the train traction motor runs up, contact pressure can be passed through the spring soft readjustment, thereby improves shock resistance, guarantees and has improved overall measurement accuracy.
Description of drawings
Fig. 1 is the structural representation of spring coupling of the present utility model;
Fig. 2 is a structural representation of the present utility model, and this moment, shell, body and the flange of sensor were the broken section state.
Embodiment
The motor speed sensor with spring coupling shown in Fig. 1～2 is embodiment of the present utility model, it has comprised body 2 and MT type spring spiral steel shaft coupling 3 by shell 1 parcel, the both ends of body 2 all have first and second connecting holes, the axle of the internal encoder of body 2 passes its first connecting hole, shaft coupling 3 center sections are spring 31, two ends are first and second links 32,33, have two symmetrically arranged breach 34 that penetrate on the end wall of second link 33, breach is U-shaped hole groove; First link 32 and the spring 31 of shaft coupling 3 all are positioned at body 2, and the axle of first link 32 and described internal encoder is connected, and 33 second connecting holes through described body 2 of second link pass the output shaft of connection train traction motor.
For making things convenient for being connected of this motor speed sensor and other equipment, body has on the end face of second connecting hole and also is provided with flange 4.
During use, first, second link of shaft coupling connection speed sensor internal scrambler respectively is connected with the train traction motor; When the train traction motor runs up, can reduce contact force between coupling shaft and motor speed sensor by elastic connector, improve shock resistance, thereby guarantee and improved overall measurement accuracy.
Claims (5)
1. the motor speed sensor with spring coupling comprises body (2), and the both ends of described body (2) all have first and second connecting holes; The axle of the internal encoder of wherein said body (2) passes its first connecting hole; It is characterized in that: also comprise a spring coupling (3), this shaft coupling (3) center section is elastic parts (31), and two ends are first and second links (32,33); First link (32) and the spring (31) of described shaft coupling (3) all are positioned at described body (2), and first link (32) is connected with the axle of described internal encoder, and second link (33) of described shaft coupling (3) then passes through second connecting hole of described body (2).
2. motor speed sensor according to claim 1 is characterized in that: described spring coupling (3) is a MT type spring spiral steel shaft coupling, and the elastic parts of intermediate portion (31) is a spring.
3. motor speed sensor according to claim 2 is characterized in that: have two symmetrically arranged breach (34) that penetrate on the end wall of second link (33) of described spring coupling (3), described breach is U-shaped hole groove.
4. according to claim 1,2 or 3 described motor speed sensors, it is characterized in that: the end face that described body (2) has second connecting hole is provided with joint flange (4).
5. according to claim 1,2 or 3 described motor speed sensors, it is characterized in that: described body (2) outer wall is enclosed with shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201951761U CN201522499U (en) | 2009-09-22 | 2009-09-22 | Motor speed sensor with elastic shaft coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201951761U CN201522499U (en) | 2009-09-22 | 2009-09-22 | Motor speed sensor with elastic shaft coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201522499U true CN201522499U (en) | 2010-07-07 |
Family
ID=42508677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201951761U Expired - Lifetime CN201522499U (en) | 2009-09-22 | 2009-09-22 | Motor speed sensor with elastic shaft coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201522499U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107792616A (en) * | 2016-08-29 | 2018-03-13 | 湖北华电襄阳发电有限公司 | Belt offset detecting device |
| CN109358205A (en) * | 2018-11-15 | 2019-02-19 | 力博重工科技股份有限公司 | High-precision conveyer speed measuring device |
| CN110895150A (en) * | 2018-09-12 | 2020-03-20 | 台达电子工业股份有限公司 | Encoder and rotatable device suitable for same |
-
2009
- 2009-09-22 CN CN2009201951761U patent/CN201522499U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107792616A (en) * | 2016-08-29 | 2018-03-13 | 湖北华电襄阳发电有限公司 | Belt offset detecting device |
| CN110895150A (en) * | 2018-09-12 | 2020-03-20 | 台达电子工业股份有限公司 | Encoder and rotatable device suitable for same |
| CN109358205A (en) * | 2018-11-15 | 2019-02-19 | 力博重工科技股份有限公司 | High-precision conveyer speed measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100707 |