CN213870828U - Large-torque stable-transmission overrunning clutch - Google Patents
Large-torque stable-transmission overrunning clutch Download PDFInfo
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- CN213870828U CN213870828U CN202022256048.2U CN202022256048U CN213870828U CN 213870828 U CN213870828 U CN 213870828U CN 202022256048 U CN202022256048 U CN 202022256048U CN 213870828 U CN213870828 U CN 213870828U
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Abstract
The utility model relates to a driven freewheel clutch is stabilized to big moment solves current freewheel clutch inner ring cam and middle input gear and adopts bolted connection, the fragile problem of screw thread during big moment transmission. This device includes outer ring gear, inner ring cam, is equipped with roller or voussoir, its characterized in that between inner ring cam and the outer ring gear: the front side of the inner ring cam is fixedly connected with a middle input gear, a plurality of connecting holes are uniformly formed in the circumferential alignment of the inner ring cam and the middle input gear, the connecting holes comprise bolt connecting holes and pin connecting holes, bolts are arranged at the bolt connecting holes of the inner ring cam and the middle input gear, and connecting pins are arranged at the pin connecting holes. The utility model discloses the combination of bolted connection and pin junction is changed into with middle input gear's being connected to the inner ring cam, and the same size freewheel clutch assembly can transmit bigger moment, improves the life of freewheel clutch assembly, can utilize the bigger moment of limited installation space output moreover.
Description
Technical Field
The utility model belongs to mechanical transmission equipment field relates to an overrunning clutch, in particular to driven overrunning clutch is stabilized to big moment.
Background
An overrunning clutch is a commonly used mechanical transmission. The structure of the overrunning clutch mainly comprises an outer ring gear and an inner ring cam, wherein the front side of the inner ring cam is fixedly connected with a middle input gear, and linkage structures such as rollers or wedge blocks are uniformly distributed between the inner ring cam and the outer ring gear. When the rotation speeds of the intermediate input gear and the outer ring gear have a forward difference, the rollers or the wedges idle, and when the rotation speeds of the intermediate input gear and the outer ring gear have a reverse difference, the rollers or the wedges are wedged tightly, so that torque transmission is formed between the intermediate input gear and the outer ring gear. In a traditional overrunning clutch, an inner ring cam and a middle input gear are generally connected by bolts which are circumferentially and uniformly arranged. Because the bolt connection structure has the clearance in screw thread department, and the intensity of flank of screw is lower, when the torsion transmission is great, forms great shearing force to the flank of screw, causes the screw thread to damage, influences the life shortening of freewheel clutch assembly.
Disclosure of Invention
The utility model aims to solve present freewheel clutch inner ring cam and middle input gear and adopt bolted connection, the fragile problem of screw thread during big moment transmission provides a driven freewheel clutch is stabilized to big moment.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a driven freewheel clutch is stabilized to big moment, includes outer ring gear, inner ring cam, is equipped with roller or voussoir between inner ring cam and the outer ring gear, its characterized in that: the front side of the inner ring cam is fixedly connected with a middle input gear, a plurality of connecting holes are uniformly formed in the circumferential alignment of the inner ring cam and the middle input gear, the connecting holes comprise bolt connecting holes and pin connecting holes, bolts are arranged at the bolt connecting holes of the inner ring cam and the middle input gear, and connecting pins are arranged at the pin connecting holes. Compared with the prior art, the scheme changes the connection between the inner ring cam and the middle input gear from full bolt connection into the combination of bolt connection and pin connection. The bolt connection guarantees the stability of axial connection, and pin connection's joint gap is little, can tight fit or even interference fit, can bear bigger transmission torque, and the same size freewheel clutch assembly can transmit bigger moment, not only can improve the life of freewheel clutch assembly, can utilize the bigger moment of limited installation space output moreover.
Preferably, the pin connecting holes are uniformly distributed on the circumference, and the other connecting holes are bolt connecting holes. For example, 4 pin connecting holes are uniformly distributed by taking 12 connecting holes in total, and two bolt connecting holes are arranged between every two adjacent pin connecting holes, wherein at the moment, although each bolt connecting hole is not uniform, the two bolt connecting holes are still uniformly distributed in a group; the pin connecting holes and the bolt connecting holes can be respectively provided with 6. The total number of the connecting holes and the occupation ratio of the pin connecting holes and the bolt connecting holes can be adjusted according to requirements.
Preferably, the bolt connecting holes are uniformly distributed on the circumference, and the other connecting holes are pin connecting holes.
Preferably, a front baffle for limiting the front of the roller or the wedge block is arranged between the front side surface of the inner ring cam and the middle input gear, and a through hole is formed at the position where the front baffle is aligned with the connecting hole; the rear side surface of the inner ring cam is provided with a rear baffle for limiting the rear of the roller or the wedge block, a through hole is formed in the position where the rear baffle is aligned with the bolt connecting hole, and the rear baffle is sealed at the position where the rear baffle is aligned with the pin connecting hole and serves as the rear limit of the connecting pin. The rear baffle plate is used as the rear end limit of the connecting pin.
Preferably, the pin connecting hole in the intermediate input gear is a stepped hole with a small front end and a large rear end, and the pin connecting hole in the inner ring cam is consistent with the large end of the stepped hole.
Preferably, the bolt connecting hole on the middle input gear is a threaded hole, and the bolt connecting hole on the inner ring cam is a unthreaded hole.
Preferably, the front side surface of the outer ring gear is provided with an annular groove, and the inner ring cam is embedded in the annular groove.
Preferably, an intermediate shaft penetrates through the centers of the intermediate input gear and the outer ring gear, the intermediate input gear and the intermediate shaft are in combined transmission, and the outer ring gear is rotatably erected on the intermediate shaft through a bearing.
The utility model discloses the combination of bolted connection and pin junction is changed into with middle input gear's being connected to the inner ring cam, and the same size freewheel clutch assembly can transmit bigger moment, not only can improve the life of freewheel clutch assembly, can utilize the bigger moment of limited installation space output moreover.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
Fig. 1 is a schematic sectional view of the present invention.
Fig. 2 is a schematic diagram of a roller position structure according to the present invention.
In the figure: 1. the device comprises an outer ring gear, 2, an inner ring cam, 3, a roller, 4, an intermediate input gear, 5, a pin connecting hole, 6, a connecting pin, 7, a bolt connecting hole, 8, a bolt, 9, a front baffle, 10, a rear baffle, 11, an intermediate shaft, 12 and a bearing.
Detailed Description
The present invention will be further described with reference to the following specific embodiments and accompanying drawings.
Example (b): an overrunning clutch with a large-torque stable transmission is shown in figures 1 and 2. The device comprises an outer ring gear 1 and an inner ring cam 2, wherein the front side surface of the outer ring gear 1 is provided with an annular groove, and the inner ring cam 2 is embedded in the annular groove. And a roller 3 is arranged between the inner ring cam and the outer ring gear. The front side of the inner ring cam 2 is fixedly connected with an intermediate input gear 4, twelve connecting holes are uniformly formed in the inner ring cam 2 and the intermediate input gear 4 in a circumferential alignment mode, and each connecting hole is arranged at an interval of 30 degrees. The twelve connecting holes comprise eight bolt connecting holes 7 and four pin connecting holes 5, the four pin connecting holes are uniformly arranged at intervals of 90 degrees, and the rest connecting holes are bolt connecting holes. The inner ring cam and the intermediate input gear are provided with bolts 8 at bolt connecting holes and connecting pins 6 at pin connecting holes. The pin connecting hole 5 on the middle input gear 4 is a stepped hole with a small front end and a large rear end, and the pin connecting hole 5 on the inner ring cam 2 is consistent with the large end of the stepped hole. The bolt connecting hole 7 on the middle input gear 4 is a threaded hole, and the bolt connecting hole 7 on the inner ring cam 2 is a unthreaded hole.
A front baffle 9 for limiting the front of the roller 3 is arranged between the front side surface of the inner ring cam 2 and the middle input gear 4, and a through hole is formed at the position where the front baffle 9 is aligned with the connecting hole for a bolt or a connecting pin to pass through; the rear side surface of the inner ring cam 2 is provided with a rear baffle piece 10 for limiting the rear of the roller 3, a through hole is formed in the position where the rear baffle piece is aligned with the bolt connecting hole, and the rear baffle piece 10 is sealed at the position where the rear baffle piece is aligned with the pin connecting hole to serve as the rear limit of the connecting pin 6.
An intermediate shaft 11 penetrates through the centers of the intermediate input gear 4 and the outer ring gear, the outer ring periphery of the intermediate input gear is input teeth, a middle hole of the intermediate input gear 4 is meshed with the intermediate shaft 11 through splines for transmission, and the outer ring gear 1 is rotatably erected on the intermediate shaft 11 through a bearing 12.
The working state of the device is as follows: when the load of the overrunning clutch assembly is small or the rotating speed is high, the roller idles because the rotating speed of the intermediate input gear is higher than that of the outer ring gear, and the intermediate input gear works independently at the moment; the rotating speed of the middle input gear is forced to gradually decrease along with the continuous increase of the load of the overrunning clutch, when the rotating speed of the middle input gear is lower than that of the outer ring gear, the roller is wedged tightly, the torque of the outer ring gear is transmitted to the middle input gear through the roller, the inner ring cam, the bolt and the connecting pin, and at the moment, the outer ring gear and the middle input gear work simultaneously and can transmit larger torque.
The inner ring cam and the middle input gear are connected through combination of bolt connection and pin connection. The bolt connection guarantees the stability of axial connection, and pin connection's joint gap is little, can tight fit or even interference fit, can bear bigger transmission torque, and the same size freewheel clutch assembly can transmit bigger moment, not only can improve the life of freewheel clutch assembly, can utilize the bigger moment of limited installation space output moreover.
Claims (7)
1. The utility model provides a driven freewheel clutch is stabilized to big moment, includes outer ring gear, inner ring cam, is equipped with roller or voussoir between inner ring cam and the outer ring gear, its characterized in that: the front side of the inner ring cam is fixedly connected with a middle input gear, a plurality of connecting holes are uniformly formed in the inner ring cam and the middle input gear in a circumferential alignment manner, the connecting holes comprise bolt connecting holes and pin connecting holes, bolts are arranged at the bolt connecting holes of the inner ring cam and the middle input gear, and connecting pins are arranged at the pin connecting holes; a front baffle for limiting the front of the roller or the wedge block is arranged between the front side surface of the inner ring cam and the middle input gear, and a through hole is formed at the alignment position of the front baffle and the connecting hole; the rear side surface of the inner ring cam is provided with a rear baffle for limiting the rear of the roller or the wedge block, a through hole is formed in the position where the rear baffle is aligned with the bolt connecting hole, and the rear baffle is sealed at the position where the rear baffle is aligned with the pin connecting hole and serves as the rear limit of the connecting pin.
2. A high torque capacity transmission overrunning clutch as claimed in claim 1 wherein: the pin connecting holes are uniformly distributed on the periphery, and the other connecting holes are bolt connecting holes.
3. A high torque capacity transmission overrunning clutch as claimed in claim 1 wherein: the bolt connecting holes are uniformly distributed on the periphery, and the other connecting holes are pin connecting holes.
4. A high torque stabilising drive overrunning clutch according to claim 1, 2 or 3 wherein: the pin connecting hole on the middle input gear is a stepped hole with a small front end and a large rear end, and the pin connecting hole on the inner ring cam is consistent with the large end of the stepped hole.
5. A high torque stabilising drive overrunning clutch according to claim 1, 2 or 3 wherein: the bolt connecting hole on the middle input gear is a threaded hole, and the bolt connecting hole on the inner ring cam is a unthreaded hole.
6. A high torque stabilising drive overrunning clutch according to claim 1, 2 or 3 wherein: the front side surface of the outer ring gear is provided with an annular groove, and the inner ring cam is embedded in the annular groove.
7. A high torque stabilising drive overrunning clutch according to claim 1, 2 or 3 wherein: an intermediate shaft penetrates through the centers of the intermediate input gear and the outer ring gear, the intermediate input gear and the intermediate shaft are in combined transmission, and the outer ring gear is rotatably erected on the intermediate shaft through a bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022256048.2U CN213870828U (en) | 2020-10-12 | 2020-10-12 | Large-torque stable-transmission overrunning clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022256048.2U CN213870828U (en) | 2020-10-12 | 2020-10-12 | Large-torque stable-transmission overrunning clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213870828U true CN213870828U (en) | 2021-08-03 |
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ID=77071392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022256048.2U Active CN213870828U (en) | 2020-10-12 | 2020-10-12 | Large-torque stable-transmission overrunning clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213870828U (en) |
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2020
- 2020-10-12 CN CN202022256048.2U patent/CN213870828U/en active Active
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