CN203067601U - Cam-type speed-limiting clutch - Google Patents
Cam-type speed-limiting clutch Download PDFInfo
- Publication number
- CN203067601U CN203067601U CN 201220679699 CN201220679699U CN203067601U CN 203067601 U CN203067601 U CN 203067601U CN 201220679699 CN201220679699 CN 201220679699 CN 201220679699 U CN201220679699 U CN 201220679699U CN 203067601 U CN203067601 U CN 203067601U
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- CN
- China
- Prior art keywords
- cam
- block
- outer ring
- lever
- rotating shaft
- 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 - Fee Related
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Abstract
The utility model belongs to the technical field of mechanical engineering and particularly relates to a cam-type speed-limiting clutch. The cam-type speed-limiting clutch comprises a rotating shaft and an outer ring, wherein the outer ring is arranged in the circumferential outside of the rotating shaft. A cam is installed on the rotating shaft. A stop block is arranged in the exterior of the cam. The middle part of the stop block is in hinge joint with a first support base which is connected with the outer ring. A clamping claw which is capable of clamping the cam is arranged at one end of the stop block, and the other end of the stop block is connected with a first compressed spring. The first compressed spring is fixedly arranged on the outer ring, and a lever which is capable of abutting against the stop block is arranged at the end where the clamping claw of the stop block is located. The middle part of the lever is in hinge joint with a second support base which is connected with the outer ring. One end of the lever is abutted against a boss arranged on the outer ring, and the other end of the lever is connected with a second compressed spring. The second compressed spring is fixed on the outer ring. The cam-type speed-limiting clutch is reasonable in structure, easy and convenient to operate and capable of limiting speeds stably.
Description
Technical field
The utility model belongs to mechanical engineering technical field, is specifically related to a kind of cammingly speed limit clutch.
Background technique
The cammingly clutch generally is to utilize eccentric cam wedge structure and the wedge action of driving and driven part, and folk prescription is to transmitting moment of torsion, have simple in structure, bearing capacity by force, be suitable for characteristics such as high rotating speed, good reliability, maintenance be easy.Often there are defectives such as complex structure, speed limit clutch instability in existing cam speed limit clutch.
The model utility content
The technical problems to be solved in the utility model provides a kind of cammingly speed limit clutch of simple in structure, stable operation.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme:
A kind of cammingly speed limit clutch, the outer shroud that comprises rotating shaft and the circumferential outer installment of rotating shaft, cam is installed in the rotating shaft, the cam outside is provided with block, the block middle part is articulated on first bearing that is connected with outer shroud, this block one end has the claw that can block cam, the other end of block is connected with first stage clip, this first stage clip is fixedly installed on the outer shroud, an end that is positioned at the block claw is provided with the lever that can prop up this block, and described lever middle part is articulated on second bearing that is connected with outer shroud, and the boss of establishing on lever one end and the outer shroud offsets, the other end is connected with second stage clip, and this second stage clip is fixed on the outer shroud.
The utility model principle is as follows: under the rotating shaft normal operation, under effect under the thrust of first spring, the claw of block blocks cam, under the thrust of second spring, lever props up claw one end of block, and the moment of torsion of rotating shaft is passed to outer shroud via cam, block; When rotating shaft is rotated with the high speed that surpasses setting value, act on centrifugal force on the block greater than first spring to the power that block applies, act on the power that the centrifugal force on the lever applies to lever greater than second spring, block is thrown off from cam, can not continue to transmit moment of torsion, transmission is cut off.To sum up, the utility model is rational in infrastructure, easy and simple to handle, speed limit stable.
Description of drawings
Fig. 1 is the utility model embodiment's structural representation.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Cammingly speed limit clutch as shown in Figure 1, the outer shroud 2 that comprises rotating shaft 1 and rotating shaft 1 circumferential outer installment, cam 3 is installed in the rotating shaft, cam 3 outsides are provided with block 4, block 4 middle parts are articulated on first bearing 6 that is connected with outer shroud, these block 4 one ends have the claw 41 that can block cam 3, the other end of block 4 is connected with first stage clip 8, this first stage clip 8 is fixedly installed on the outer shroud 2, an end that is positioned at block 4 claws 41 is provided with the lever 5 that can prop up this block, described lever 5 middle parts are articulated on second bearing 7 that is connected with outer shroud 2, lever 5 one ends offset with the boss that is fixedly connected on the outer shroud 2, the other end is connected with second stage clip 9, and this second stage clip 9 is fixed on the outer shroud 2.
Claims (1)
1. cammingly speed limit clutch, it is characterized in that, the outer shroud that comprises rotating shaft and the circumferential outer installment of rotating shaft, cam is installed in the rotating shaft, the cam outside is provided with block, the block middle part is articulated on first bearing that is connected with outer shroud, this block one end has the claw that can block cam, the other end of block is connected with first stage clip, and this first stage clip is fixedly installed on the outer shroud, and an end that is positioned at the block claw is provided with the lever that can prop up this block, described lever middle part is articulated on second bearing that is connected with outer shroud, the boss of establishing on lever one end and the outer shroud offsets, and the other end is connected with second stage clip, and this second stage clip is fixed on the outer shroud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220679699 CN203067601U (en) | 2012-12-11 | 2012-12-11 | Cam-type speed-limiting clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220679699 CN203067601U (en) | 2012-12-11 | 2012-12-11 | Cam-type speed-limiting clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203067601U true CN203067601U (en) | 2013-07-17 |
Family
ID=48766388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220679699 Expired - Fee Related CN203067601U (en) | 2012-12-11 | 2012-12-11 | Cam-type speed-limiting clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203067601U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486155A (en) * | 2013-09-05 | 2014-01-01 | 余姚市精诚高新技术有限公司 | Cam bidirectional clutch device |
-
2012
- 2012-12-11 CN CN 201220679699 patent/CN203067601U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486155A (en) * | 2013-09-05 | 2014-01-01 | 余姚市精诚高新技术有限公司 | Cam bidirectional clutch device |
| CN103486155B (en) * | 2013-09-05 | 2015-12-09 | 余姚市精诚高新技术有限公司 | A kind of cam bidirectional clutch device |
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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: 20130717 Termination date: 20131211 |