CN202484138U - Clutch used for vacuum circuit breaker chassis vehicle - Google Patents
Clutch used for vacuum circuit breaker chassis vehicle Download PDFInfo
- Publication number
- CN202484138U CN202484138U CN2012200870805U CN201220087080U CN202484138U CN 202484138 U CN202484138 U CN 202484138U CN 2012200870805 U CN2012200870805 U CN 2012200870805U CN 201220087080 U CN201220087080 U CN 201220087080U CN 202484138 U CN202484138 U CN 202484138U
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- Prior art keywords
- clutch
- friction plate
- block
- drive
- coupling band
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- Expired - Fee Related
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- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
The utility model discloses a clutch used for a vacuum circuit breaker chassis vehicle. The clutch used for the vacuum circuit breaker chassis vehicle can effectively protect a motor from overburning caused by overload. The clutch comprises a separation and reunion block installed on a rotating shaft and a coupling shaft sleeve used for driving the rotating shaft to rotate, wherein the separation and reunion block is provided with a separation and reunion block inner groove, a clutch separating spring structure is arranged inside the separation and reunion block inner groove, a transmission block is arranged between the separation and reunion block and the coupling shaft sleeve. Opposite faces of the transmission block and the separation and reunion block are respectively provided with grooves and protruding blocks, wherein the grooves correspondingly are meshed with the protruding blocks. A friction plate structure connected with the coupling shaft sleeve is arranged between the transmission block and the coupling shaft sleeve. One end of the clutch separating spring structure abuts against a supporting face of the separation and reunion block inner groove, the other end of the clutch separating spring structure abuts against a coupling shaft sleeve driving structure formed by the transmission block and the friction plate structure, and the friction plate structure is pressed on a driving face of the transmission block through the clutch separating spring structure.
Description
Technical field
The utility model relates to a kind of clutch, relates in particular to a kind of clutch that is used for the vacuum circuit breaker chassis.
Background technique
The clutch that existing vacuum circuit breaker chassis is used generally comprises rotating shaft; Sprocket wheel, worm gear, clutch block and coupling band are installed in the rotating shaft successively; Sprocket wheel and coupling band are fixedly connected on the two ends of rotating shaft through spring column pin; Be respectively arranged with the groove and the projection of corresponding engagement on the opposing side of clutch block and coupling band; Said clutch block is provided with the clutch block inside groove, and the set inside of said clutch block inside groove has the clutch disengaging spring structure, and symmetry has and is distributed on the conical bore on the circumference and is placed with steel ball on the opposing side of clutch block and worm gear.When needs are controlled chassis is electronic; Drive above-mentioned worm gear through motor worm and rotate, the worm gear of rotation can drive steel ball and promote clutch block and coupling band engagement, and then rotates through coupling band drive rotating shaft; Thereby make the sprocket rotation in the rotating shaft, reach the purpose of transferring power with this.When needs during to the chassis manual manipulation; Manually shake the chassis screw mandrel; The sprocket wheel backward rotation several angle that drives in the rotating shaft through chain makes the steel ball return, and clutch block separates with coupling band under the pressure effect of clutch disengaging spring structure, and this moment, worm gear was static.Not enough below the clutch of said structure exists: the engagement of clutch block and coupling band is a kind of rigid engagement; In this way during transmitting torque; In case because of extraneous factor causes rotating shaft can't normal rotation; Can cause device overloads such as motor, very easily burn motor or damage chassis interlocking mechanism etc.
The model utility content
The technical problem that the utility model solves provides a kind of clutch that is used for the vacuum circuit breaker chassis that can effectively protect motor can not burn because of overload.
The utility model solves the technological scheme that its technical problem adopted: the clutch that is used for the vacuum circuit breaker chassis; Comprise and be installed in the clutch block in the rotating shaft and be used to drive the coupling band that rotating shaft is rotated; Said clutch block is provided with the clutch block inside groove; The set inside of said clutch block inside groove has the clutch disengaging spring structure; Be provided with the drive block that is installed in the rotating shaft between said clutch block and the coupling band, be respectively arranged with the groove and the projection of corresponding engagement on the opposing side of said drive block and clutch block; Be provided with the friction plate structure that links to each other with coupling band between said drive block and the coupling band; One end of said clutch disengaging spring structure is resisted against on the supporting surface of clutch block inside groove; The other end of clutch disengaging spring structure is resisted against on the coupling band driving structure that is formed by drive block and friction plate structure, and said friction plate structure is pressed on the drive surface of drive block through the clutch disengaging spring structure.
Further be: said drive block is provided with the drive block inside groove; Said coupling band comprises first joint that is arranged on the drive block outside and second joint that is arranged on the inside of drive block inside groove; The outer surface of the drive block that said first joint is corresponding forms first drive surface, and the internal surface of the drive block inside groove that said second joint is corresponding forms second drive surface; Said friction plate structure comprises first friction plate that links to each other with first joint of coupling band and second friction plate that links to each other with second joint, and said clutch disengaging spring structure is pressed on first drive surface and second drive surface first friction plate and second friction plate respectively through second friction plate is exerted pressure.
Further be: said friction plate structure also comprises the lock washer that links to each other with second joint of coupling band that is arranged between second friction plate and the clutch disengaging spring structure; The said lock washer and the second friction plate contact matching, an end of said clutch disengaging spring structure is resisted against on the lock washer.
Further be: said second friction plate links to each other with second joint of coupling band through connecting key with lock washer.
Further be: said clutch disengaging spring structure comprises clutch separation stage clip, dish spring and adjusting nut; Said adjusting nut is arranged in the rotating shaft; One end of said dish spring is resisted against on the said coupling band driving structure; The other end of dish spring is resisted against on the adjusting nut, and an end of said clutch separation stage clip is resisted against on the said supporting surface, and the other end of said clutch separation stage clip is resisted against on the dish spring.
Further be: shown in coupling band also comprise the 3rd joint of the inside that is positioned at the clutch block inside groove, said adjusting nut is arranged in the rotating shaft through being threaded with the 3rd joint.
The beneficial effect of the utility model is: owing to be provided with friction plate structure; Worm gear drives coupling band through clutch block, drive block and friction plate structure successively and drives the rotating shaft rotation; When rotating shaft stops operating because of external drag or can't normal rotation; Drive block is owing to the driving that receives clutch block can continue to the friction plate structure transmitting torque, and the suffered resistance of drive block this moment can continue to increase, after the moment of torsion that is transmitted surpasses chassis greatest limit prevention moment of torsion certain value; Can skid between the drive surface of drive block and the friction plate structure; Can significantly reduce the resistance that drive block receives like this when rotating, and then can protect motor can also can not protect other mechanism to avoid damaging because of the overload scaling loss.
Description of drawings
Fig. 1 is the schematic representation of the clutch that is used for the vacuum circuit breaker chassis of the utility model.
Be labeled as among the figure: coupling band 1, the first joint 2, the second joints 3, the first friction plates 4, drive block 5, the second friction plates 6; Connecting key 7, lock washer 8, the three joints 9, steel ball 10, worm gear 11, adjusting nut 12; Drive block inside groove 13, projection 14, groove 15,, dish spring 16, clutch block 17, clutch separation stage clip 18; Clutch block inside groove 19, supporting surface 20, the first drive surface 21, the second drive surface 22, rotating shaft 23.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
As shown in Figure 1; The clutch that is used for the vacuum circuit breaker chassis of the utility model; Comprise the clutch block 17 that is installed in the rotating shaft 23 and be used to drive the coupling band 1 that rotating shaft is rotated; Said clutch block 17 is provided with clutch block inside groove 19; The set inside of said clutch block inside groove 19 has the clutch disengaging spring structure, is provided with the drive block 5 that is installed in the rotating shaft 23 between said clutch block 17 and the coupling band 1, is respectively arranged with the groove 15 and projection 14 of corresponding engagement on the opposing side of said drive block 5 and clutch block 17; Be provided with the friction plate structure that links to each other with coupling band 1 between said drive block 5 and the coupling band 1; One end of said clutch disengaging spring structure is resisted against on the supporting surface 20 of clutch block inside groove 19; The other end of clutch disengaging spring structure is resisted against on the coupling band driving structure that is formed by drive block 5 and friction plate structure, and said friction plate structure is pressed on the drive surface of drive block 5 through the clutch disengaging spring structure.
When needs are electronic when controlling; Can open motor; Motor can drive worm gear 11 rotations of clutch through worm screw, and the worm gear 11 meeting drive steel balls 10 of rotation promote clutch block 17 and mesh with drive block 5, and meeting pass to friction plate structure through the drive surface on it with moment of torsion after drive block 5 rotations; And then pass to coupling band 1, rotate thereby drive coupling band 1.Can drive rotating shaft 23 after coupling band 1 rotates rotates.When rotating shaft 23 stopped operating because of external drag or can't normal rotation, coupling band 1 stopped operating thereupon or can't normal rotation, because friction plate structure links to each other with coupling band 1; Make friction plate structure also stop operating or can't normal rotation thereupon; Drive block 5 is owing to the driving that receives clutch block 17 can continue to the friction plate structure transmitting torque, and this moment, drive block 5 suffered resistances can continue to increase, and the load of motor also can correspondingly increase; After the moment of torsion that is transmitted surpasses chassis greatest limit prevention moment of torsion certain value; Can skid between the drive surface of drive block 5 and the friction plate structure, can significantly reduce the resistance that drive block 5 receives like this when rotating, and then can reduce the load of motor; Can protect motor can also can not protect other mechanism to avoid damaging because of the overload scaling loss.
The set-up mode of above-mentioned friction plate structure has multiple; For example shown in Figure 1; First friction plate 4 only is set, though can moment of torsion be passed to first friction plate 4 through drive block 5 like this, and then drive coupling band 1 rotation; But this set mode is stable inadequately at the long-time moment of torsion that uses the back to be transmitted, and influences the normal operation of chassis.In order to make drive block to the moment of torsion stable for extended periods of time that friction plate structure transmits, chassis can be run well for a long time, as shown in Figure 1, said drive block 5 is provided with drive block inside groove 13; Said coupling band 1 comprises first joint 2 and second joint 3 that is arranged on the inside of drive block inside groove 13 that is arranged on drive block 5 outsides; The outer surface of the drive block 5 of said first joint, 2 correspondences forms first drive surface 21, and the internal surface of the drive block inside groove 13 of said second joint, 3 correspondences forms second drive surface 22; Said friction plate structure comprises first friction plate 4 that links to each other with first joint 2 of coupling band 1 and second friction plate 6 that links to each other with second joint 3, and said clutch disengaging spring structure is pressed on first drive surface 21 and second drive surface 22 first friction plate 4 and second friction plate 6 respectively through second friction plate 6 is exerted pressure.Owing to be provided with two friction plates, two friction plates cooperate with two drive surface of drive block respectively, and it is firm firm to make that moment of torsion transmits, and under the long-play situation, also can guarantee stable transmitting torque, and chassis can be run well for a long time.
Above-mentioned clutch disengaging spring structure can directly be exerted pressure to above-mentioned second friction plate 6, thereby first friction plate 4 and second friction plate 6 are pressed in respectively on first drive surface 21 and second drive surface 22.But might produce damage to second friction plate 6 like this, and the clutch disengaging spring structure is also stable inadequately to second friction plate, 6 applied pressures.In order to overcome above-mentioned deficiency; Said friction plate structure also comprises the lock washer 8 that links to each other with second joint 3 of coupling band 1 that is arranged between second friction plate 6 and the clutch disengaging spring structure; Said lock washer 8 and second friction plate, 6 contact matching, an end of said clutch disengaging spring structure is resisted against on the lock washer 8.
Above-mentioned first friction plate can or be riveted with the coupling band welding.The Placement of above-mentioned second friction plate and lock washer and coupling band also has multiple; Installation and maintenance for the ease of second friction plate and lock washer; Also in order to make the pressure stability of lock washer to the transmission of second friction plate, said second friction plate 6 links to each other with second joint 3 of coupling band 1 through connecting key 7 with lock washer 8.Can guarantee the pressure stability that 8 pairs second friction plates of lock washer 6 transmit like this, also be convenient to the quick mounting of the lock washer 8 and second friction plate 6.
The mode of execution of above-mentioned clutch disengaging spring structure has multiple, for example can be a stage clip, but this set mode can't adjust the pretightening force between friction plate structure and the drive block, just can't adjust the torque of being transmitted.In order to overcome above-mentioned deficiency; As shown in Figure 1, said clutch disengaging spring structure comprises clutch separation stage clip 18, dish spring 16 and adjusting nut 12, and said adjusting nut 12 is arranged in the rotating shaft 23; One end of said dish spring 16 is resisted against on the said coupling band driving structure; The other end of dish spring 16 is resisted against on the adjusting nut 12, and an end of said clutch separation stage clip 18 is resisted against on the said supporting surface 20, and the other end of said clutch separation stage clip 18 is resisted against on the dish spring 16.During use,, thereby can adjust the pretightening force between friction plate structure and the drive block, just can adjust the torque of being transmitted through whole 16 pairs of coupling band driving structure of the dish spring applied pressure of the adjustable positions of regulating above-mentioned adjusting nut 12.Above-mentioned adjusting nut 12 can directly be threaded with rotating shaft 23, but makes processing and use all inconvenient like this.For the ease of install, processing and safeguarding, as shown in Figure 1, shown in coupling band 1 also comprise the 3rd joint 9 of the inside that is positioned at clutch block inside groove 19, said adjusting nut 12 is arranged in the rotating shaft 23 through being threaded with the 3rd joint.
Claims (6)
1. the clutch that is used for the vacuum circuit breaker chassis; Comprise the clutch block (17) that is installed in the rotating shaft (23) and be used to drive the coupling band (1) that rotating shaft is rotated; Said clutch block (17) is provided with clutch block inside groove (19); The set inside of said clutch block inside groove (19) has the clutch disengaging spring structure; It is characterized in that: be provided with the drive block (5) that is installed in the rotating shaft (23) between said clutch block (17) and the coupling band (1), be respectively arranged with the groove (15) and the projection (14) of corresponding engagement on the opposing side of said drive block (5) and clutch block (17); Be provided with the friction plate structure that links to each other with coupling band (1) between said drive block (5) and the coupling band (1); One end of said clutch disengaging spring structure is resisted against on the supporting surface (20) of clutch block inside groove (19); The other end of clutch disengaging spring structure is resisted against on the coupling band driving structure that is formed by drive block (5) and friction plate structure, and said friction plate structure is pressed on the drive surface of drive block (5) through the clutch disengaging spring structure.
2. the clutch that is used for the vacuum circuit breaker chassis as claimed in claim 1 is characterized in that: said drive block (5) is provided with drive block inside groove (13); Said coupling band (1) comprises first joint (2) that is arranged on drive block (5) outside and second joint (3) that is arranged on the inside of drive block inside groove (13); The outer surface of the drive block (5) that said first joint (2) is corresponding forms first drive surface (21), and the internal surface of the drive block inside groove (13) that said second joint (3) is corresponding forms second drive surface (22); Said friction plate structure comprises first friction plate (4) that links to each other with first joint (2) of coupling band (1) and second friction plate (6) that links to each other with second joint (3), and said clutch disengaging spring structure is pressed on first drive surface (21) and second drive surface (22) first friction plate (4) and second friction plate (6) respectively through second friction plate (6) is exerted pressure.
3. the clutch that is used for the vacuum circuit breaker chassis as claimed in claim 2; It is characterized in that: said friction plate structure also comprises the lock washer (8) that links to each other with second joint (3) of coupling band (1) that is arranged between second friction plate (6) and the clutch disengaging spring structure; Said lock washer (8) and second friction plate (6) contact matching, an end of said clutch disengaging spring structure is resisted against on the lock washer (8).
4. the clutch that is used for the vacuum circuit breaker chassis as claimed in claim 3 is characterized in that: said second friction plate (6) links to each other with second joint (3) of coupling band (1) through connecting key (7) with lock washer (8).
5. the clutch that is used for the vacuum circuit breaker chassis as claimed in claim 1; It is characterized in that: said clutch disengaging spring structure comprises clutch separation stage clip (18), dish spring (16) and adjusting nut (12); Said adjusting nut (12) is arranged in the rotating shaft (23); One end of said dish spring (16) is resisted against on the said coupling band driving structure; The other end of dish spring (16) is resisted against on the adjusting nut (12), and an end of said clutch separation stage clip (18) is resisted against on the said supporting surface (20), and the other end of said clutch separation stage clip (18) is resisted against on the dish spring (16).
6. the clutch that is used for the vacuum circuit breaker chassis as claimed in claim 5; It is characterized in that: said coupling band (1) also comprises the 3rd joint (9) of the inside that is positioned at clutch block inside groove (19), and said adjusting nut (12) is arranged in the rotating shaft (23) through being threaded with the 3rd joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200870805U CN202484138U (en) | 2012-03-09 | 2012-03-09 | Clutch used for vacuum circuit breaker chassis vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200870805U CN202484138U (en) | 2012-03-09 | 2012-03-09 | Clutch used for vacuum circuit breaker chassis vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202484138U true CN202484138U (en) | 2012-10-10 |
Family
ID=46958564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200870805U Expired - Fee Related CN202484138U (en) | 2012-03-09 | 2012-03-09 | Clutch used for vacuum circuit breaker chassis vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202484138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106823455A (en) * | 2017-04-06 | 2017-06-13 | 浙江天联机械有限公司 | A kind of self-cleaning extractor that can be flattened automatically |
-
2012
- 2012-03-09 CN CN2012200870805U patent/CN202484138U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106823455A (en) * | 2017-04-06 | 2017-06-13 | 浙江天联机械有限公司 | A kind of self-cleaning extractor that can be flattened automatically |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20180309 |