CN215720367U - Elastic clutch protection mechanism of transmission pair - Google Patents
Elastic clutch protection mechanism of transmission pair Download PDFInfo
- Publication number
- CN215720367U CN215720367U CN202121528527.3U CN202121528527U CN215720367U CN 215720367 U CN215720367 U CN 215720367U CN 202121528527 U CN202121528527 U CN 202121528527U CN 215720367 U CN215720367 U CN 215720367U
- Authority
- CN
- China
- Prior art keywords
- transmission
- gear
- output end
- transmission shaft
- elastic
- 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.)
- Active
Links
Images
Landscapes
- Gear Transmission (AREA)
Abstract
The utility model relates to the technical field of mechanical clutch structures, in particular to an elastic clutch protection mechanism of a transmission pair, which comprises a motor, a transmission shaft, an output end gear, a clutch plate and a fixing structure, wherein the transmission shaft is in transmission connection with the motor; the output end gear is in clearance fit with the transmission shaft, and a plurality of grooves are formed in the end face of the output end gear; the clutch plate is elastic and comprises a base plate and a plurality of elastic arms arranged at intervals along the circumferential direction of the base plate, each elastic arm is provided with a bulge, and the clutch plate is in transmission connection with the transmission shaft; the fixing structure is used for enabling the end face of the substrate to be mutually abutted to the end face of the output end gear, and enabling the protrusion to be detachably connected with the groove.
Description
Technical Field
The utility model relates to the technical field of mechanical clutch structures, in particular to an elastic clutch protection mechanism of a transmission pair.
Background
In the prior art, the reduction mechanism is generally divided into two types: one is that the worm gear and worm are self-locking, can prevent the worm gear from transmitting to the worm in the opposite direction effectively, but does not allow to rotate the output gear by hand, if rotate the output gear by force the gear and worm is apt to destroy; the second is that the worm gear and the worm are not self-locking, which can allow the output gear to be manually rotated, but the requirement on the internal gear and the worm is higher, and if the output gear is tightly held or overloaded in normal operation, the internal gear and the worm are easily worn or damaged.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the technical problems to be solved by the utility model are as follows: the elastic clutch protection mechanism of the transmission pair can protect the internal gear worm from being damaged difficultly.
In order to solve the technical problems, the utility model adopts the technical scheme that: the elastic clutch protection mechanism of the transmission pair comprises a motor, a transmission shaft, an output end gear, a clutch plate and a fixed structure;
the transmission shaft is in transmission connection with the motor, the output end gear and the clutch plate are both arranged in the axial direction of the transmission shaft, and the fixing structure is fixed at the tail end of the transmission shaft;
the output end gear is in clearance fit with the transmission shaft, and a plurality of grooves are formed in the end face of the output end gear;
the clutch plate is elastic and comprises a base plate and a plurality of elastic arms arranged at intervals along the circumferential direction of the base plate, each elastic arm is provided with a bulge, and the clutch plate is in transmission connection with the transmission shaft;
the fixing structure is used for enabling the end face of the substrate to be mutually abutted to the end face of the output end gear, and enabling the protrusion to be detachably connected with the groove.
The transmission mechanism comprises a worm, a bevel gear and a transmission structure, wherein the worm and the bevel gear are self-locked with each other, and the transmission structure is in transmission connection with the bevel gear and the transmission shaft respectively.
Wherein a guide surface is arranged on the surface of the protrusion.
Wherein, the fixed knot constructs for machine tooth screw.
The motor is characterized by further comprising a gear set, wherein the gear set comprises an input end and an output end, the input end is in transmission connection with the motor, and the output end is in transmission connection with the transmission shaft.
The utility model has the beneficial effects that: the tail end of the transmission shaft is provided with a fixing structure, so that the end surface of the clutch plate is mutually attached to the end surface of the output end gear through the fixing structure, the bulge is kept in a state of being inserted into the groove, and the transmission between the transmission rod and the output end gear is realized through the matching of the bulge and the groove; the elastic arm connected with the bulge is elastic, so that when the output end gear is in a holding state, the elastic arm deforms to enable the bulge to be separated from the groove temporarily until the bulge enters the next groove, damage to a transmission structure between the transmission shaft and the motor due to the fact that the output end gear is in the holding state is avoided, and the service life of the elastic clutch protection mechanism of the transmission pair is prolonged; when the output end gear rotates reversely, the worm and the helical gear are self-locked to be separated from each other through the convex groove, so that damage to a transmission structure due to reverse rotation of the output end gear is avoided.
Drawings
FIG. 1 is a schematic structural diagram of an elastic clutch protection mechanism of a transmission pair according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a transmission structure according to an embodiment of the present invention;
FIG. 3 is a schematic view of the output gear according to the present invention;
fig. 4 is a schematic structural view of a clutch plate in the embodiment of the present invention.
Description of reference numerals: 1. a motor; 2. a drive shaft; 3. a fixed structure; 4. an output end gear; 41. a groove; 5. a clutch plate; 51. a substrate; 52. a resilient arm; 53. a protrusion; 6. a worm; 7. a helical gear; 8. a gear set.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 4, the present invention relates to a transmission pair elastic clutch protection mechanism, which includes a motor 1, a transmission shaft 2, an output end gear 4, a clutch plate 5 and a fixing structure 3; the transmission shaft 2 is in transmission connection with the motor 1, the output end gear 4 and the clutch plate 5 are both arranged in the axial direction of the transmission shaft 2, and the fixed structure 3 is fixed at the tail end of the transmission shaft 2; the output end gear 4 is in clearance fit with the transmission shaft 2, and a plurality of grooves 4 are formed in the end face of the output end gear 4; the clutch plate 5 is elastic, the clutch plate 5 comprises a base plate 51 and a plurality of elastic arms 52 arranged at intervals along the circumferential direction of the base plate 51, each elastic arm 52 is provided with a bulge 53, and the clutch plate 5 is in transmission connection with the transmission shaft 2; the fixing structure 3 is used for abutting the end face of the substrate 51 and the end face of the output end gear 4 against each other, and enabling the protrusion 53 and the groove 4 to be detachably connected.
Specifically, the transmission process of the utility model is as follows: the motor 1 is in transmission connection with the transmission shaft 2 to drive the transmission shaft 2 to rotate, and the transmission shaft 2 is in transmission connection with the clutch plate 5, and the transmission shaft 2 is in clearance fit with the output end gear 4, namely, the transmission shaft 2 is mutually matched with the groove 4 of the output end gear 4 through the bulge 53 in the clutch plate 5 to realize the transmission connection of the transmission shaft 2 and the output end gear 4.
The clutch plate 5 is elastic, that is, in one embodiment, the output end gear 4 is held tightly, at this time, the elastic arm 52 on the clutch plate 5 deforms due to the relative rotation between the clutch plate 5 and the output end gear 4, and the transmission connection between the output end gear 4 and the clutch plate 5 is released in a manner that the protrusion 53 is separated from the groove 4, so that in this condition, the motor 1 can be protected from being damaged.
It should be noted that the protrusion 53 is detachably connected to the groove 4, that is, the protrusion 53 is connected to the groove 4 to realize the transmission connection between the clutch plate 5 and the output end gear 4, and the protrusion 53 is separated from the groove 4 to realize the transmission disconnection between the clutch plate 5 and the output end gear 4, and the clutch plate 5 continues to rotate relative to the output end gear 4, so that the protrusion 53 is connected to the groove 4 again to realize the reconnection between the clutch plate 5 and the output end gear 4.
Preferably, an accommodating groove for accommodating the clutch plate 5 is arranged on the end face of the output end gear 4, so that the transmission shaft 2, the clutch plate 5 and the output end gear 4 are coaxially arranged.
From the above description, the beneficial effects of the present invention are: the tail end of the transmission shaft 2 is provided with a fixing structure 3, so that the end surface of the clutch plate 5 is attached to the end surface of the output end gear 4 through the fixing structure 3, the bulge 53 is kept in a state of being inserted into the groove 4, and the transmission between the transmission rod and the output end gear 4 is realized through the matching of the bulge 53 and the groove 4; and because the elastic arm 52 connected with the protrusion 53 is elastic, when the output end gear 4 is in a clasping state, the elastic arm 52 deforms to enable the protrusion 53 to be separated from the groove 4 for a short time until the protrusion 53 enters the next groove 4, so that damage to a transmission structure between the transmission shaft 2 and the motor 1 caused by the clasping state of the output end gear 4 is avoided, and the service life of the elastic clutch protection mechanism of the transmission pair is prolonged.
Further, the worm and the bevel gear are self-locked with each other, and the transmission structure is in transmission connection with the bevel gear and the transmission shaft respectively.
Referring to fig. 2, in one embodiment, the elastic clutch protection mechanism of the transmission pair further comprises a worm 6 and a bevel gear 7 which can be self-locked, and a transmission structure, specifically, the worm 6 is in transmission connection with the motor 1, the bevel gear 7 is meshed with the worm 6 and has self-locking property, and the transmission structure is arranged between the bevel gear 7 and the transmission shaft 2 so as to enable the bevel gear 7 and the transmission shaft 2 to be in transmission connection. When the output end gear 4 rotates reversely, the worm 6 and the helical gear 7 are self-locked, so that the protrusion 53 on the clutch plate 5 is separated from the groove 4 on the helical gear 7 temporarily, and the transmission structure is prevented from being damaged due to the reverse rotation of the output end gear 4.
Further, a guide surface is provided on the surface of the projection 53.
As can be seen from the above description, the surface of the protrusion 53 has a guiding surface, and preferably, the protrusion 53 is a frustum so as to avoid the protrusion 53 from being stuck in the groove 4 to cause the clutch plate 5 to lose the clutch effect by the circumferential surface of the frustum being a slope.
Further, the fixing structure 3 is a machine thread screw.
As can be seen from the above description, the fixing structure 3 is configured as a machine tooth screw so as to mount the clutch plate 5 and the output gear 4 on the transmission shaft 2 during the production process, and also so as to change the pre-compression force of the machine tooth screw on the clutch plate 5 by changing the screwing-in distance of the machine tooth screw according to actual requirements.
Further, still include gear train 8, gear train 8 includes input and output, the input with motor 1 transmission is connected, the output with transmission shaft 2 transmission is connected.
In one embodiment, the transmission structure is a gear set 8, so as to respectively transmit and connect the motor 1 and the output gear 4 through the gear set 8, thereby realizing the transmission connection between the motor 1 and the output gear 4, and the gear set 8 can be set to adjust the rotation speed of the output gear 4 according to actual requirements.
It should be noted that, in this context, the "self-locking" is mainly achieved by designing the deployment rotation angle of the worm 6 to be smaller than the friction angle of the helical gear 7 in contact with the worm 6.
Example one
Referring to fig. 1 to 4, the transmission pair elastic clutch protection mechanism comprises a transmission pair elastic clutch protection mechanism, which comprises a motor 1, a transmission shaft 2, an output end gear 4, a clutch plate 5, a fixing structure 3, a worm 6, a gear set 8 and a helical gear 7; the transmission shaft 2 is in transmission connection with the motor 1, the output end gear 4 and the clutch plate 5 are both arranged in the axial direction of the transmission shaft 2, and the fixed structure 3 is fixed at the tail end of the transmission shaft 2; the output end gear 4 is in clearance fit with the transmission shaft 2, three grooves 4 are formed in the end face of the output end gear 4, and the three grooves 4 are arranged at equal intervals along the circumferential direction of the end face of the output end gear 4; the clutch plate 5 is elastic, the clutch plate 5 comprises a base plate 51 and three elastic arms 52 arranged at intervals along the circumferential direction of the base plate 51, each elastic arm 52 is provided with a protrusion 53, the clutch plate 5 is in transmission connection with the transmission shaft 2, the position and the shape of each protrusion 53 correspond to the groove 4, the motor 1 is in transmission connection with the worm 6, the worm 6 is meshed with the helical gear 7 and has self-locking performance, and the gear set 8 is arranged between the helical gear 7 and the transmission shaft 2 to realize the transmission connection of the helical gear 7 and the transmission shaft 2;
the fixing structure 3 is used for enabling the end face of the substrate 51 and the end face of the output end gear 4 to be mutually abutted, and enabling the protrusion 53 and the groove 4 to be detachably connected;
a guide surface is arranged on the surface of the bulge 53, and the bulge 53 is a frustum;
the fixing structure 3 is a machine tooth screw.
In summary, the utility model provides an elastic clutch protection mechanism for a transmission pair, wherein a fixing structure 3 is arranged at the tail end of a transmission shaft 2, so that the end surface of a clutch plate 5 and the end surface of an output end gear 4 are attached to each other through the fixing structure 3, and a protrusion 53 is kept in a state of being inserted into a groove 4, so that the transmission between a transmission rod and the output end gear 4 is realized through the matching of the protrusion 53 and the groove 4; the elastic arm 52 connected with the bulge 53 is elastic, so that when the output end gear 4 is in a holding state, the elastic arm 52 deforms to enable the bulge 53 to be separated from the groove 4 for a short time until the bulge 53 enters the next groove 4, damage to a transmission structure between the transmission shaft 2 and the motor 1 due to the fact that the output end gear 4 is in the holding state is avoided, and the service life of the elastic clutch protection mechanism of the transmission pair is prolonged; and when the output end gear 4 rotates reversely, the worm 6 and the helical gear 7 are self-locked so as to be separated from the groove 4 on the helical gear 7 temporarily through the bulge 53 on the clutch plate 5, so that the transmission structure is prevented from being damaged due to the reverse rotation of the output end gear 4.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (5)
1. The elastic clutch protection mechanism of the transmission pair is characterized by comprising a motor, a transmission shaft, an output end gear, a clutch plate and a fixing structure;
the transmission shaft is in transmission connection with the motor, the output end gear and the clutch plate are both arranged in the axial direction of the transmission shaft, and the fixing structure is fixed at the tail end of the transmission shaft;
the output end gear is in clearance fit with the transmission shaft, and a plurality of grooves are formed in the end face of the output end gear;
the clutch plate is elastic and comprises a base plate and a plurality of elastic arms arranged at intervals along the circumferential direction of the base plate, each elastic arm is provided with a bulge, and the clutch plate is in transmission connection with the transmission shaft;
the fixing structure is used for enabling the end face of the substrate to be mutually abutted to the end face of the output end gear, and enabling the protrusion to be detachably connected with the groove.
2. The elastic clutch protection mechanism of the transmission pair as claimed in claim 1, further comprising a worm and a helical gear which are self-locked with each other, and a transmission structure, wherein the transmission structure is in transmission connection with the helical gear and the transmission shaft respectively.
3. The elastic clutch protection mechanism of the transmission pair as claimed in claim 1, wherein a guide surface is arranged on the surface of the projection.
4. The elastic clutch protection mechanism of the transmission pair as claimed in claim 1, wherein the fixing structure is a machine screw.
5. The elastic clutch protection mechanism of the transmission pair as claimed in claim 1, further comprising a gear set, wherein the gear set comprises an input end and an output end, the input end is in transmission connection with the motor, and the output end is in transmission connection with the transmission shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121528527.3U CN215720367U (en) | 2021-07-06 | 2021-07-06 | Elastic clutch protection mechanism of transmission pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121528527.3U CN215720367U (en) | 2021-07-06 | 2021-07-06 | Elastic clutch protection mechanism of transmission pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215720367U true CN215720367U (en) | 2022-02-01 |
Family
ID=80047503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121528527.3U Active CN215720367U (en) | 2021-07-06 | 2021-07-06 | Elastic clutch protection mechanism of transmission pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215720367U (en) |
-
2021
- 2021-07-06 CN CN202121528527.3U patent/CN215720367U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2234004A1 (en) | Torque limiter with trip indicator | |
| US20140011598A1 (en) | Overload protection torque transmission device | |
| CN215720367U (en) | Elastic clutch protection mechanism of transmission pair | |
| TW201245793A (en) | Transmission assembly | |
| WO2016062260A1 (en) | Driver | |
| GB2040397A (en) | Universal joints | |
| CN211059313U (en) | Folding driving device for automatic folding screen mobile phone | |
| CN110645329A (en) | Folding driving device for automatic folding screen mobile phone | |
| CN212297323U (en) | Elastic ball tooth coupling | |
| GB2180625A (en) | Gear coupling | |
| CN107791243B (en) | Steering engine and robot | |
| CN110332245B (en) | Cross universal coupling | |
| CN102182770B (en) | Shaft connecting device for connecting motor and dynamometer | |
| CN216143143U (en) | Friction slip protection mechanism of transmission pair | |
| CN204358925U (en) | A kind of motor-driven mechanism and air-conditioner | |
| CN107355513B (en) | Transmission structure and rearview mirror driver | |
| CN210397480U (en) | Coupling transmission mechanism in intermediate rubber coating form | |
| CN218510036U (en) | Integral type elastic coupling | |
| CN219082121U (en) | Transmission assembly and mechanical equipment | |
| CN220365876U (en) | Cone-shaped self-aligning coupler | |
| CN217681978U (en) | Engine power take-off device | |
| CN204452577U (en) | A kind of tubing string booster type electric servo steering system | |
| KR102373755B1 (en) | Slack Prevented Tendon Connector for Wearable Robot | |
| CN220060311U (en) | Clutch mechanism for selective torque transmission | |
| CN216922911U (en) | Safety coupling with buffering function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |