CN203442013U - Spindle sleeve type automatic safety clutch - Google Patents
Spindle sleeve type automatic safety clutch Download PDFInfo
- Publication number
- CN203442013U CN203442013U CN201220386552.7U CN201220386552U CN203442013U CN 203442013 U CN203442013 U CN 203442013U CN 201220386552 U CN201220386552 U CN 201220386552U CN 203442013 U CN203442013 U CN 203442013U
- Authority
- CN
- China
- Prior art keywords
- clutch wheel
- tooth
- wheel case
- driving shaft
- driven
- 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
Links
Images
Landscapes
- Mechanical Operated Clutches (AREA)
Abstract
The utility model discloses an automatic safety clutch that protects a driving, a transmission or an execution mechanism of a mechanical apparatus. The automatic safety clutch employs engaging type engagement structure, and mainly comprises a driving shaft, a compaction spring, an active engaging type clutch wheel sleeve and a driven engaging type clutch wheel sleeve. The structure is as following: the compaction spring is sleeved on one end with an outer tooth, of the driving shaft, the non-engaged end face of the active engaging type clutch wheel sleeve that has an inner tooth inside the shaft aperture is sleeved on the section, with an outer tooth, of the driving shaft; one end, with a trapezoidal engagement end face, of the driven engaging type clutch wheel sleeve that has a smooth shaft aperture is sleeved on the section, with a smooth shaft, of the driving shaft, in opposite to the trapezoidal engagement tooth end face of the active engaging type clutch wheel sleeve. A positioning pin and a locating block are installed on the outer ends of the compaction spring and the driven engaging type clutch wheel sleeve. The active engaging type clutch wheel sleeve and the driven engaging type clutch wheel sleeve are engaged through the trapezoidal engagement tooth under the elastic force of the compressed compaction spring. The inner tooth of the active engaging type clutch wheel and the outer tooth of the driving shaft engage to realize synchronous rotation and can slide along the axial direction. The driven engaging type clutch wheel sleeve pushes off the active engaging type clutch wheel sleeve along axial direction and rotates around the driving shaft when meets extra resistance. The two engagement type trapezoidal engagement teeth are arranged along the outside of the end surface of the active engaging type clutch wheel sleeve and the driven engaging type clutch wheel sleeve; the circumferential lengths of the two trapezoidal engagement teeth are different, wherein the circumferential length of one trapezoidal engagement tooth is 1/4 of its girth and the circumferential length of the other trapezoidal engagement tooth is 3/4 of its girth; the engagement angle of the two trapezoidal engagement tooth engagement surfaces is 30-70 DEG; and an engagement or a divorce happens when one circle of rotation is completed.
Description
Affiliated technical field
The utility model patent relates to a kind of machinery functional entity, the automatic clutch safety protection device of especially a kind of driving, transmission or actuator.
Background technique
In the driver output of existing numerous machinery, transmission or actuator, do not install overburdening automatic safe protective device, have potential safety hazard; Or the mode that more existing equipment only have outer peripheral areas protection, electronic induction to shut down protection can not be satisfied the demand; or more existing safety mechanism are not used because of factors such as mode of structure, volume etc. are not easy to install or implant, easily damage, reliability and stability are poor, can not automatically recover in time; cause Safety function disappearance, and when abnormal, cause equipment or personnel's infringement.No matter which kind of situation, except existing equipment and personal security hidden danger, also has influence on the utilization efficiency of equipment simultaneously.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of automatic safety clutch, it is as a whole that this clutch structurally will become, be convenient to install and implant, when output terminal is subject to surpassing the drag effect power of design load, driving or the gearing power of energy automatic disconnection input end, and then play safety protection effect; After additional friction is removed or disappeared, without manual operation, can automatically recover to drive or drive connection, and then continue running; This clutch, when realizing its function, possess stable, reliable, easy or non-maintaining feature.
For solving the problems of the technologies described above, the utility model " axle sleeve type automatic safe clutch " adopts castellated meshing engagement structure, mainly driving shaft, holddown spring, active jaw formula clutch wheel case, driven castellated clutch wheel case, consists of.Structural relation is: holddown spring is sleeved on the one end that has external tooth on driving shaft, axis hole has the non-end of engagement of the active jaw formula wheel case of internal tooth facing to holddown spring, to be sleeved on the section that has external tooth on driving shaft, has trapezoidal engaging tooth end face one end that has from dental inlay dynamic formula clutch wheel case of smooth axis hole to be sleeved on optical axis section driving shaft facing to the trapezoidal engaging tooth end face of active jaw formula clutch wheel case.At holddown spring with from the outer end of dental inlay dynamic formula clutch wheel case, locating stud and positioning block are installed respectively.Under the elastic force effect of the holddown spring after driving and driven castellated clutch pinion is enclosed within by compression, its trapezoidal engaging tooth is together intermeshing.The internal tooth of active jaw formula clutch pinion is realized synchronizeing with the engagement of the external tooth of driving shaft and is rotated and can slide vertically.When driven castellated clutch wheel case is subject to exceeding the quata resistance, push vertically active jaw formula clutch wheel case open, around driving shaft, rotate.
Described driven castellated clutch wheel case outer end portion can be installed sprocket wheel, gear or with key-axle driving mechanical actuator.
When the mechanical actuating mechanism of the utility model driven end association is during in operation, the resistance that it is subject to forms reaction force, when reaction force is when the thrust of the dental inlay Surface of action formation of driven castellated clutch wheel case end face is greater than surface friction drag, Surface of action produces relative sliding, active jaw formula clutch wheel case is axially recessed along driving shaft, removes meshing relation with driven castellated clutch wheel case, and gearing power disappears, mechanical actuating mechanism decommissions, and then plays a protective role; When the additional friction being subject to when actuator disappears or removes, active jaw formula clutch pinion is enclosed within the effect of holddown spring and automatically replies engaging position, set up meshing relation with driven castellated clutch wheel case, thereby immediate recovery is to the driving of mechanical actuating mechanism or transmission.
Described two castellated trapezoidal engaging tooths are along layout outside driving and driven clutch wheel case end face, two trapezoidal engaging tooth circumferential lengths are not etc., the circumferential lengths of one of them trapezoidal engaging tooth is 1/4 of girth, and the circumferential lengths of another trapezoidal engaging tooth is girth 3/4; The tooth matching angle of two stepped tooth Surface of action is 30-70 °; Often circle can occur engagement or separation once.
Whole members of the utility model can be encapsulated in the housing of cylindrical shell or equipment itself, and dustproof, anti-collision, anti-abnormal liquid or gas pickling are non-maintaining.
The beneficial effects of the utility model are, can replace easily or be arranged on axle head or the axle middle part of original driving or transmission, and volume is little, can encapsulate separately or be arranged in the original housing of equipment; When driven end the torsion that produces of execution resistance (reaction force) be greater than while setting torsion, this clutch automatic trip from or remove to drive or drive connection, safety protection in time, resistance is normal or while disappearing, automatically recover to drive or drive connection running in time; There is flexible, stable, reliable, non-maintaining functional characteristic.
Accompanying drawing explanation
In accompanying drawing 1: 1. driving shaft
2. holddown spring
3. active jaw formula clutch wheel case
4. driven castellated clutch wheel case
Embodiment
Below in conjunction with accompanying drawing 1 and embodiment, the utility model is further illustrated.
In accompanying drawing 1,1. on driving shaft, be set with successively 2. holddown spring, 3. active jaw formula clutch wheel case, 4. driven castellated clutch wheel case; 2. the sensing that holddown spring is arranged on 3. active jaw formula clutch wheel case outer end and by its elastic force, 3. active jaw formula clutch wheel case is formed to some strength is the thrust of driven castellated clutch wheel case 4.; 3. active jaw formula clutch wheel case meshes with the external tooth realization of 1. this section of driving shaft by its internal tooth and synchronizes rotation, and can slide vertically; 3. active jaw formula clutch wheel case meshes with the 4. driven castellated clutch wheel case trapezoidal inclined plane dental inlay by wheel wheel case end face, under the pressure-acting of 2. holddown spring, because the frictional force of Surface of action drives 4. driven castellated clutch wheel case, synchronously rotate (when under normal circumstances, the pressure of spring is greater than normal operation between two clutch wheel case Surface of action reaction thrust and the deboost sum of friction force); 4. 1. driven castellated clutch wheel case is sleeved on driving shaft and can be around 1. driving shaft rotation; 4. driven castellated clutch wheel case outer end portion can be installed sprocket wheel, gear or key-axle mode and driven or gearing actuator.
In machinery operation, when the abnormal resistance of actuator, (as encounter brick and tile, the hard thing such as stone or overburdening), executive process is obstructed, reaction force is passed to 4. driven castellated clutch wheel case, 4. driven castellated clutch wheel case stops operating and produce end thrust on engagement trapezoidal inclined plane, when thrust is greater than frictional force, 3. active jaw formula clutch pinion is enclosed within rotation vertically outer moving and departs from 4. driven castellated clutch wheel case, meshing relation is removed, the gearing power of driven castellated clutch wheel case and driven actuator is disappeared, and then play a protective role with actuator or device to driven.
When the deboost effect of the 4. driven castellated clutch wheel case that 3. active jaw formula clutch wheel case is subject to disappears or weakens to normal level, under 2. holddown spring elastic force effect, in rotation, move in vertically and automatically build again meshing relation with 4. driven castellated clutch wheel case, thereby drive driven and actuator or device to resume operation, realize auto restore facility.
If actuator or device are encountered hard thing continuously or abnormal resistance is not removed; 3. active jaw formula clutch wheel case and 4. driven castellated clutch wheel case automatically, occur constantly " from-close-from " action (sliping off and remove transmission); thereby avoid distortion and the damage of Mechanical Driven, transmission or actuator and device, play automatic safe protective effect.
Can be according to equipment practical structures or design needs, can by 1. driving shaft, be set with successively 2. holddown spring, 3. active jaw formula clutch wheel case, 4. in driven castellated clutch pinion sleeve dress compact type cylinder shell, or be enclosed in the housing of equipment itself, filling moderate lubrication oil, the fault, damage or the inefficacy that reduce wear, kill, the factor such as corrosion cause, have volume little, installation application is easy, and good stability, reliability, flexibility and non-maintaining property.
Claims (4)
1. an axle sleeve type automatic safe clutch, is characterized in that: adopt castellated meshing engagement structure, mainly driving shaft, holddown spring, active jaw formula clutch wheel case, driven castellated clutch wheel case, consist of.Structural relation is: holddown spring is sleeved on the one end that has external tooth on driving shaft, axis hole has the non-end of engagement of the active jaw formula wheel case of internal tooth facing to holddown spring, to be sleeved on the section that has external tooth on driving shaft, has trapezoidal engaging tooth end face one end that has from dental inlay dynamic formula clutch wheel case of smooth axis hole to be sleeved on optical axis section driving shaft facing to the trapezoidal engaging tooth end face of active jaw formula clutch wheel case.At holddown spring with from the outer end of dental inlay dynamic formula clutch wheel case, locating stud and positioning block are installed respectively.Under the elastic force effect of the holddown spring after driving and driven castellated clutch pinion is enclosed within by compression, its trapezoidal engaging tooth is together intermeshing.The internal tooth of active jaw formula clutch pinion is realized synchronizeing with the engagement of the external tooth of driving shaft and is rotated and can slide vertically.When driven castellated clutch wheel case is subject to exceeding the quata resistance, push vertically active jaw formula clutch wheel case open, around driving shaft, rotate.
2. axle sleeve type automatic safe clutch according to claim 1, it is characterized in that: between driven castellated clutch wheel case and driving shaft, be the non-relation that is fastenedly connected, when driven end is subject to exceeding the quata resistance, active jaw formula clutch wheel case is retired along driving shaft automatically, remove meshing relation with driven castellated clutch wheel case, when driven castellated clutch wheel case and active jaw formula clutch wheel case depart from, can rotate around driving shaft.
3. axle sleeve type automatic safe clutch according to claim 1, it is characterized in that: two castellated trapezoidal engaging tooths are along layout outside driving and driven clutch wheel case end face, two trapezoidal engaging tooth circumferential lengths are not etc., the circumferential lengths of one of them trapezoidal engaging tooth is 1/4 of girth, and the circumferential lengths of another trapezoidal engaging tooth is girth 3/4.
4. axle sleeve type automatic safe clutch according to claim 1, is characterized in that: the tooth matching angle of two stepped tooth Surface of action is 30-70 °; Often circle can occur engagement or separation once.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220386552.7U CN203442013U (en) | 2012-08-02 | 2012-08-02 | Spindle sleeve type automatic safety clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220386552.7U CN203442013U (en) | 2012-08-02 | 2012-08-02 | Spindle sleeve type automatic safety clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203442013U true CN203442013U (en) | 2014-02-19 |
Family
ID=50093071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220386552.7U Expired - Fee Related CN203442013U (en) | 2012-08-02 | 2012-08-02 | Spindle sleeve type automatic safety clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203442013U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632919A (en) * | 2014-12-12 | 2015-05-20 | 陈相贤 | Emergency stop device installed in farming machine gearbox |
| CN105570333A (en) * | 2014-10-17 | 2016-05-11 | 楚天科技股份有限公司 | Semi-automatic clutch device |
-
2012
- 2012-08-02 CN CN201220386552.7U patent/CN203442013U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570333A (en) * | 2014-10-17 | 2016-05-11 | 楚天科技股份有限公司 | Semi-automatic clutch device |
| CN105570333B (en) * | 2014-10-17 | 2018-06-29 | 楚天科技股份有限公司 | Semi-automatic arrangement of clutch |
| CN104632919A (en) * | 2014-12-12 | 2015-05-20 | 陈相贤 | Emergency stop device installed in farming machine gearbox |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203442013U (en) | Spindle sleeve type automatic safety clutch | |
| CN102650322B (en) | Composite drum type gear shaft coupler | |
| CN201650727U (en) | Disk-type power head anti-reverse mechanism of screw-type oil pump | |
| CN201043572Y (en) | Flange type safe coupling | |
| CN203413040U (en) | Spiral bevel gear right angle speed reducer of frost prevention machine | |
| CN201769987U (en) | Two-roller integrated marine anchor windlass | |
| CN201724235U (en) | Adjustable overload-protection slag eliminator | |
| CN205852678U (en) | Engine flywheel assembling auxiliary device | |
| CN203770130U (en) | Driving device of side driving type reverse rotation preventing screw pump | |
| CN203472826U (en) | Built-in wet-type brake wheel-side-assemble type drive axle | |
| CN203500315U (en) | Novel shaft coupler device | |
| CN203009625U (en) | Spline-type serpentine spring coupler | |
| CN203516508U (en) | Limit moment coupler locking device | |
| CN203727102U (en) | Construction machine and drive axle assembly thereof | |
| CN102728622B (en) | Coupling structure for rolling frame | |
| CN202872610U (en) | Dual-drive four-insurance speed reducer | |
| CN205045372U (en) | Ratchet wheel backstop | |
| CN201231976Y (en) | Overload protection device | |
| CN202001517U (en) | Hand wheel engaging and disengaging gear | |
| CN204553147U (en) | The box pumping plant of a kind of hydraulic drill rig transfer | |
| CN206353928U (en) | Extirpator fluted disc roller release mechanism | |
| CN205036757U (en) | Transmission decelerator with overload protection | |
| CN201401455Y (en) | Cross shaft positioning structure for cross universal shaft | |
| CN203362875U (en) | Powder metallurgy high-torque slipping type gear | |
| CN204226415U (en) | A kind of Motor torque output shaft structure |
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: 20140219 Termination date: 20160802 |