CN103532311B - With the speed measuring device of overspeed protection - Google Patents
With the speed measuring device of overspeed protection Download PDFInfo
- Publication number
- CN103532311B CN103532311B CN201310514070.4A CN201310514070A CN103532311B CN 103532311 B CN103532311 B CN 103532311B CN 201310514070 A CN201310514070 A CN 201310514070A CN 103532311 B CN103532311 B CN 103532311B
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- China
- Prior art keywords
- speed measuring
- overspeed protection
- protection switch
- bearing
- shaft coupling
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Abstract
The invention provides a kind of speed measuring device with overspeed protection, overspeed protection switch is mounted on the first bearing, by the first shaft coupling connecting flange; Then speed measuring coder is installed on the second bearing, then connects overspeed protection switch and speed measuring coder with the second shaft coupling.The present invention is the speed measuring device with overspeed protection switch, not only simple and reliable for structure, easy for installation, and rotating speed also can effectively be transmitted; Under the prerequisite ensureing speed measuring function, the effect of duplicate protection is played in the utilization of overspeed protection switch to the observing and controlling of motor speed, owing to being direct connection with motor, strong interference immunity, reliability is high, effectively can prevent the generation of electromechanical equipment damage accident.
Description
Technical field
The present invention relates to the speed measuring device field of motor, be especially with the speed measuring device structure of overspeed protection switch.
Background technology
In common DC motor, often adopt speed measuring coder directly to measure the rotating speed of motor, the reliability of this speed measuring device is not very high, is easily disturbed, and only can measures motor speed, but lacks function motor and equipment being provided to protection in time.
Summary of the invention
The present invention is directed to the problems referred to above; a kind of speed measuring device with overspeed protection switch is provided; under the prerequisite ensureing speed measuring function; by installing overspeed protection switch; improve the anti-interference of speed measuring device, reliability greatly; when motor speed exceedes the action range of speeds of overspeed protection switch, the situation such as electromechanics and equipment damage accident can be reduced to a greater extent.
Technical scheme of the present invention is as follows:
With a speed measuring device for overspeed protection, comprise the first bearing, flange, the first shaft coupling, overspeed protection switch, the second bearing, the second shaft coupling and speed measuring coder; First bearing to be fixed on conjunction outside motor bearings by bolt and to cover, flange be bolted be locked at machine shaft end screwed hole in, the spindle nose of flange stretches in the endoporus of the first shaft coupling; Speed measuring coder is fixed on conjunction on the second bearing by screw; Overspeed protection switch puts together on the first bearing, the second bearing by bolt respectively, and the little axle of overspeed protection switch ends is by the first shaft coupling, the second shaft coupling connecting flange and speed measuring coder respectively.
Its further technical scheme is: described flange, overspeed protection switch, speed measuring coder connect into entirety, are connected with machine shaft.
Advantageous Effects of the present invention is:
One, flange of the present invention directly connects into entirety by shaft coupling overspeed protection switch and machine shaft, and the rotating speed of machine shaft passes to overspeed protection switch; By shaft coupling, overspeed protection switch and speed measuring coder are connected into entirety again; the rotating speed of final machine shaft passes to speed measuring coder by overspeed protection switch; rotating speed can effectively be transmitted; under the prerequisite ensureing speed measuring function; owing to being direct connection with motor, improve the anti-interference of speed measuring device, reliability greatly.
Two, overspeed protection switch of the present invention plays the effect of duplicate protection, when motor speed exceedes the action range of speeds of overspeed protection switch, can reduce the situation such as electromechanics and equipment damage accident to a greater extent.
Three, of the present invention simple and reliable for structure, fitting operation is convenient.
The aspect that the present invention adds and advantage provide in the description of embodiment part below, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of flange in Fig. 1.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the structural representation of the first bearing in Fig. 1.
Fig. 5 is the A-A cutaway view of Fig. 4.
Fig. 6 is the structural representation of the second bearing in Fig. 1.
Fig. 7 is the A-A cutaway view of Fig. 6.
Fig. 8 is the structural representation of overspeed protection switch in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
As shown in Figure 1, the present invention includes the first bearing 2, flange 3, first shaft coupling 4, overspeed protection switch 5, second bearing 6, second shaft coupling 7 and speed measuring coder 8.By the first bearing 2(as shown in Figure 4, Figure 5) by bolt, conjunction is fixed on motor bearings enclosing cover 1, the end of machine shaft is by bolt by flange 3(as shown in Figure 2 and Figure 3) fixing and locking is in the screwed hole that rotating shaft is reserved in advance.The spindle nose 3-1 size of flange 3 manufactures according to the size of the installation endoporus of the first shaft coupling 4, stretches in the endoporus of the first shaft coupling 4 during installation.Speed measuring coder 8 is fixed on the second bearing 6(as shown in Figure 6, Figure 7 by screw conjunction) on.Overspeed protection switch 5(is as shown in Figure 8) put together on the first bearing 2, second bearing 6 respectively by bolt, the little axle 5-1 at overspeed protection switch 5 two ends is by the first shaft coupling 4, second shaft coupling 7 connecting flange 3 and speed measuring coder 8 respectively.Like this, flange 3, overspeed protection switch 5, speed measuring coder 8 connect in aggregates, are directly connected with machine shaft.Wherein the utilization of overspeed protection switch 5 serves the effect of duplicate protection.
The speed measuring device of band overspeed protection switch of the present invention, not only simple and reliable for structure, easy for installation, and also rotating speed also can effectively be transmitted; The utilization of overspeed protection switch, plays the effect of duplicate protection to the observing and controlling of motor speed simultaneously.
Above-described is only the preferred embodiment of the present invention, the invention is not restricted to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive without departing from the basic idea of the present invention or associate, all should think and be included within protection scope of the present invention.
Claims (2)
1. the speed measuring device with overspeed protection, is characterized in that: comprise the first bearing (2), flange (3), the first shaft coupling (4), overspeed protection switch (5), the second bearing (6), the second shaft coupling (7) and speed measuring coder (8); First bearing (2) is bolted and is fixed on motor bearings enclosing cover (1), flange (3) be bolted be locked at machine shaft end screwed hole in, the spindle nose (3-1) of flange (3) stretches in the endoporus of the first shaft coupling (4); Speed measuring coder (8) is connected by screw and is fixed on the second bearing (6); Overspeed protection switch (5) is connected on the first bearing (2), the second bearing (6) by bolt, and the little axle (5-1) at overspeed protection switch (5) two ends is by the first shaft coupling (4), the second shaft coupling (7) connecting flange (3) and speed measuring coder (8) respectively.
2. the speed measuring device according to claim 1 with overspeed protection, is characterized in that: described flange (3), overspeed protection switch (5), speed measuring coder (8) connect into entirety, are connected with machine shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310514070.4A CN103532311B (en) | 2013-10-25 | 2013-10-25 | With the speed measuring device of overspeed protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310514070.4A CN103532311B (en) | 2013-10-25 | 2013-10-25 | With the speed measuring device of overspeed protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103532311A CN103532311A (en) | 2014-01-22 |
| CN103532311B true CN103532311B (en) | 2015-09-30 |
Family
ID=49934086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310514070.4A Active CN103532311B (en) | 2013-10-25 | 2013-10-25 | With the speed measuring device of overspeed protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103532311B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018120370A1 (en) * | 2018-08-21 | 2020-02-27 | Valeo Siemens Eautomotive Germany Gmbh | Holding device for a resolver on a bearing plate of an electric motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005160278A (en) * | 2003-11-28 | 2005-06-16 | Nissan Motor Co Ltd | Synchronous motor and vehicle unit using same |
| CN2730011Y (en) * | 2004-09-28 | 2005-09-28 | 中国北车集团永济电机厂 | Electric machine mounted with speed measuring coder |
| CN201374614Y (en) * | 2009-02-27 | 2009-12-30 | 王照海 | Control device used for overspeed protection of alternating current asynchronous motor |
| CN201985698U (en) * | 2011-03-10 | 2011-09-21 | 上海市城市排水有限公司 | Motor double protection device for grating scrubbing machine |
| CN102403846A (en) * | 2011-11-15 | 2012-04-04 | 中电电机股份有限公司 | Mounting structure of motor speed test encoder |
-
2013
- 2013-10-25 CN CN201310514070.4A patent/CN103532311B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005160278A (en) * | 2003-11-28 | 2005-06-16 | Nissan Motor Co Ltd | Synchronous motor and vehicle unit using same |
| CN2730011Y (en) * | 2004-09-28 | 2005-09-28 | 中国北车集团永济电机厂 | Electric machine mounted with speed measuring coder |
| CN201374614Y (en) * | 2009-02-27 | 2009-12-30 | 王照海 | Control device used for overspeed protection of alternating current asynchronous motor |
| CN201985698U (en) * | 2011-03-10 | 2011-09-21 | 上海市城市排水有限公司 | Motor double protection device for grating scrubbing machine |
| CN102403846A (en) * | 2011-11-15 | 2012-04-04 | 中电电机股份有限公司 | Mounting structure of motor speed test encoder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103532311A (en) | 2014-01-22 |
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