CN211371091U - Mechanical one-way clutch structure - Google Patents
Mechanical one-way clutch structure Download PDFInfo
- Publication number
- CN211371091U CN211371091U CN202020095453.8U CN202020095453U CN211371091U CN 211371091 U CN211371091 U CN 211371091U CN 202020095453 U CN202020095453 U CN 202020095453U CN 211371091 U CN211371091 U CN 211371091U
- Authority
- CN
- China
- Prior art keywords
- output gear
- input shaft
- guide rod
- moving wheel
- transmission part
- 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 discloses a one-way separation and reunion structure of mechanical type, its characterized in that: comprises an input shaft, a moving wheel and an output gear; the output gear is sleeved on the input shaft, and the moving wheel is sleeved on the input shaft and matched with the input shaft to form a spiral pair; a driving transmission part is arranged on one side of the moving wheel close to the output gear, and a driven transmission part is arranged on one side of the output gear close to the moving wheel; the moving wheel is also provided with a friction spring, the friction spring is connected with a guide rod, and one end of the guide rod is fixedly connected with the friction spring; and a guide hole is formed in the output gear at a position corresponding to the guide rod, and the other end of the guide rod penetrates through the guide hole. The utility model discloses simple structure, the cost is lower, can effectively improve one way clutch's stability in use to extension one way clutch's life.
Description
Technical Field
The utility model relates to a power transmission technical field especially relates to a mechanical type one-way clutch structure.
Background
Along with the development of society and the improvement of environmental protection consciousness, electric vehicles are more and more popular with people. At present, electric vehicles on the market comprise two-wheeled electric vehicles, three-wheeled electric vehicles and four-wheeled electric vehicles, and in the process of power transmission, because the two-wheeled electric vehicles do not have a reverse gear, the two-wheeled electric vehicles generally adopt a motor to drive wheels through a gearbox; three-wheel electric vehicles and four-wheel electric vehicles usually drive a gearbox through a motor, then transmit to a differential through the gearbox, and then transmit to wheels through the differential. In order to realize the unpowered sliding of the electric vehicle and avoid the problems of short sliding distance and high energy consumption of the electric vehicle caused by reversely driving the motor to rotate in the sliding process, and simultaneously, the problems of troublesome switching of forward and reverse rotation of the motor and potential safety hazards are avoided, the motor is usually connected with the gearbox through a one-way clutch. The existing one-way clutch mainly adopts a one-way gear or a combination of the gear and a one-way bearing; the structure has the advantages of high cost, short service life and poor stability in the long-term use process, and particularly when lubricating oil is reduced, the one-way gear or the one-way bearing is easy to lose efficacy, and the power transmission is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The aforesaid to prior art exists is not enough, the utility model discloses a solve current one way clutch with high costs, poor stability, the shorter problem of life provides a mechanical type one way clutch structure, simple structure, and the cost is lower, can effectively improve one way clutch's stability in use to prolong one way clutch's life.
In order to solve the technical problem, the utility model discloses a technical scheme is like this: a mechanical one-way clutch structure is characterized in that: comprises an input shaft, a moving wheel and an output gear; the output gear is sleeved on the input shaft, is in clearance fit with the input shaft and can freely rotate around the input shaft, and positioning check rings are respectively arranged on the input shafts at two sides of the output gear; the movable wheel is sleeved on the input shaft and matched with the input shaft to form a screw pair, so that the movable wheel can move along the axial direction of the input shaft; the side of the moving wheel close to the output gear is provided with a driving transmission part, the side of the output gear close to the moving wheel is provided with a driven transmission part corresponding to the driving transmission part, and after the moving wheel moves towards the direction of the output gear, the driving transmission part and the driven transmission part can be combined to drive the output gear to rotate;
the movable wheel is also provided with a friction spring, the friction spring is provided with two clamping arms, and the two clamping arms are clamped on the movable wheel and can form friction with the movable wheel; the friction spring is connected with a guide rod, the length direction of the guide rod is consistent with the length direction of the input shaft, and one end of the guide rod is fixedly connected with the friction spring; and a guide hole is formed in the output gear at a position corresponding to the guide rod, and the other end of the guide rod penetrates through the guide hole and is in clearance fit with the output gear, so that the guide rod can freely penetrate through the output gear.
Furthermore, an external spiral spline is arranged on the input shaft, an internal spiral spline is arranged on the inner side of the movable wheel, the external spiral spline and the internal spiral spline are matched to form a spiral pair, and a limiting check ring is arranged at one end, far away from the output gear, of the external spiral spline.
Furthermore, an external thread is arranged on the input shaft, an internal thread is arranged on the inner side of the movable wheel, the external thread and the internal thread are matched to form a screw pair, and a limiting check ring is arranged at one end, far away from the output gear, of the external thread.
Furthermore, a spring groove which surrounds the side wall of the moving wheel for a circle is formed in the side wall of the moving wheel, and two clamping arms of the friction spring are positioned in the spring groove and clamp the moving wheel.
Furthermore, the friction spring is V-shaped, the two clamping arms of the friction spring are bent in an arc shape in the direction of departing from each other, and the arc-shaped section can be tightly attached to the moving wheel; the guide rod is connected with one end of the friction spring, which is connected with the two clamping arms.
Further, the friction spring and the guide rod are integrally formed.
Furthermore, the driving transmission part is a lug arranged on the moving wheel, and the driven transmission part is a groove arranged on the output gear and corresponding to the lug.
Furthermore, the driving transmission part is an outer gear ring or an inner gear sleeve arranged on the movable wheel, and the driven transmission part is an inner gear sleeve or an outer gear ring arranged on the output gear and corresponding to the outer gear ring or the inner gear sleeve.
Compared with the prior art, the utility model has the advantages of as follows: simple structure, whole one way clutch mainly comprises axle and gear, and its processing cost is lower to holistic bearing capacity, antifriction ability etc. are stronger, thereby can effectively improve one way clutch's stability in use, and extension one way clutch's life.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of the friction spring.
In the figure: 1-input shaft, 2-moving wheel, 3-output gear, 4-driving transmission part, 5-driven transmission part, 6-friction spring, 7-guide rod and 8-limit retainer ring.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1: referring to fig. 1 and 2, the mechanical one-way clutch structure comprises an input shaft 1, a moving wheel 2 and an output gear 3. The output gear 3 is sleeved on the input shaft 1, is in clearance fit with the input shaft 1 and can rotate freely around the input shaft 1, and the input shaft 1 on the two sides of the output gear 3 are respectively provided with a positioning retainer ring, so that the axial position of the output gear 3 is fixed, and the influence on the transmission stability caused by movement in the action is avoided. The moving wheel 2 is sleeved on the input shaft 1 and matched with the input shaft 1 to form a screw pair, so that the moving wheel 2 can move along the axial direction of the input shaft 1. In a specific implementation, as an embodiment, the input shaft 1 is provided with a male helical spline, the inner side of the moving wheel 2 is provided with a female helical spline, and the male helical spline and the female helical spline are matched to form a helical pair. Wherein, one end of the external spiral spline far away from the output gear 3 is provided with a limit retainer ring 8. Thus, the moving wheel 2 can be moved quickly, and is limited by the limit check ring 8, so that the separation and combination stability is ensured. As another embodiment, the input shaft 1 is provided with an external thread, the inner side of the moving wheel 2 is provided with an internal thread, the external thread and the internal thread are matched to form a screw pair, wherein one end of the external thread, which is far away from the output gear 3, is provided with a limit retainer ring 8; adopt external screw thread and interior screw thread cooperation can guarantee to remove the stability that wheel 2 removed the in-process.
The driving transmission part 4 is arranged on one side of the moving wheel 2 close to the output gear 3, the driven transmission part 5 corresponding to the driving transmission part 4 is arranged on one side of the output gear 3 close to the moving wheel 2, and after the moving wheel 2 moves towards the direction of the output gear 3, the driving transmission part 4 and the driven transmission part 5 can be combined, so that the output gear 3 is driven to rotate. In specific implementation, the driving transmission part 4 is a bump arranged on the moving wheel 2, and the driven transmission part 5 is a groove arranged on the output gear 3 and corresponding to the bump; the cooperation of the convex block and the groove is adopted, so that the transmission stability can be effectively improved, and the processing is more convenient.
A friction spring 6 is further arranged on the moving wheel 2, and the friction spring 6 is provided with two clamping arms which are clamped on the moving wheel 2 and can form friction with the moving wheel 2. The friction spring 6 is connected with a guide rod 7, the length direction of the guide rod 7 is consistent with that of the input shaft 1, and one end of the guide rod 7 is fixedly connected with the friction spring 6. Wherein, the friction spring 6 and the guide rod 7 are formed into a whole; thus, the stability of the friction spring 6 and the guide rod 7 can be effectively improved. In specific implementation, a spring groove which surrounds the side wall of the moving wheel 2 by a circle is formed in the side wall of the moving wheel, and two clamping arms of the friction spring 6 are positioned in the spring groove and clamp the moving wheel 2; therefore, the friction spring 6 is prevented from being separated from the moving wheel 2 in the axial moving process in the working process, and the stability of the whole one-way clutch is further improved. The friction spring 6 is V-shaped, two clamping arms of the friction spring are bent towards the direction away from each other to form an arc shape, and the arc-shaped section can be tightly attached to the moving wheel 2; the guide rod 7 is connected with one end of the friction spring 6, which is connected with the two clamping arms; in this way, the friction spring 6 can be better in contact with the moving wheel 2, and the contact surface is larger, so that the friction force between the friction spring 6 and the moving wheel 2 can be effectively increased. A guide hole is formed in the output gear 3 at a position corresponding to the guide rod 7, and the other end of the guide rod 7 penetrates through the guide hole and is in clearance fit with the output gear 3, so that the guide rod 7 can freely penetrate through the output gear 3; and, in the moving process of the moving wheel 2, the guide rod 7 is always positioned in the guide hole.
In the scheme, when the input shaft 1 rotates, the moving wheel 2 and the input shaft 1 form a screw pair (a screw pair), the moving wheel 2 is provided with a friction spring 6, the friction spring 6 is connected with a guide rod 7, and the guide rod 7 penetrates through the output gear 3; therefore, the moving wheel 2 cannot rotate with the input shaft 1, and can move only in the axial direction of the input shaft 1. When the input shaft 1 rotates in the positive direction, the moving wheel 2 moves towards the output gear 3 until the driving connecting part is combined with the driven connecting part, and the input shaft 1 drives the output gear 3 to rotate through the moving wheel 2; when the input shaft 1 rotates reversely, the moving wheel 2 moves towards the direction far away from the output gear 3 until the driving connecting part is separated from the driven connecting part and moves to be attached to the limit retainer ring 8, at the moment, the moving wheel 2 cannot move continuously, but the friction force between the moving wheel 2 and the friction spring 6 is not enough to drive the output gear 3 to rotate through the guide rod 7, so that the moving wheel 2 overcomes the friction force of the friction spring 6 and rotates along with the input shaft 1. When no power is input (namely the input shaft 1 does not rotate), the output gear 3 rotates along with the wheel under the action of inertia and drives the moving wheel 2 to rotate reversely, and because the moving wheel 2 and the input shaft 1 form a spiral pair, in the process of reverse rotation of the moving wheel 2, the moving wheel moves towards the direction departing from the output gear 3 under the action of the friction spring 6 and the guide rod 7 until the moving wheel is separated from the output gear 3 and moves to be attached to the limit retainer ring 8, at the moment, the moving wheel 2 cannot move continuously, but the friction force between the moving wheel 2 and the friction spring 6 is not enough to drive the input shaft 1 to rotate reversely, so that the friction spring 6 overcomes the friction force between the friction spring and the moving wheel 2 and rotates along with the output gear 3 (around the moving wheel 2).
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that those modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all should be covered in the scope of the claims of the present invention.
Claims (8)
1. A mechanical one-way clutch structure is characterized in that: comprises an input shaft, a moving wheel and an output gear; the output gear is sleeved on the input shaft, is in clearance fit with the input shaft and can freely rotate around the input shaft, and positioning check rings are respectively arranged on the input shafts at two sides of the output gear; the movable wheel is sleeved on the input shaft and matched with the input shaft to form a screw pair, so that the movable wheel can move along the axial direction of the input shaft; the side of the moving wheel close to the output gear is provided with a driving transmission part, the side of the output gear close to the moving wheel is provided with a driven transmission part corresponding to the driving transmission part, and after the moving wheel moves towards the direction of the output gear, the driving transmission part and the driven transmission part can be combined to drive the output gear to rotate;
the movable wheel is also provided with a friction spring, the friction spring is provided with two clamping arms, and the two clamping arms are clamped on the movable wheel and can form friction with the movable wheel; the friction spring is connected with a guide rod, the length direction of the guide rod is consistent with the length direction of the input shaft, and one end of the guide rod is fixedly connected with the friction spring; and a guide hole is formed in the output gear at a position corresponding to the guide rod, and the other end of the guide rod penetrates through the guide hole and is in clearance fit with the output gear, so that the guide rod can freely penetrate through the output gear.
2. A mechanical one-way clutch structure according to claim 1, characterized in that: the input shaft is provided with an external spiral spline, the inner side of the movable wheel is provided with an internal spiral spline, the external spiral spline and the internal spiral spline are matched to form a spiral pair, and one end of the external spiral spline, which is far away from the output gear, is provided with a limiting check ring.
3. A mechanical one-way clutch structure according to claim 1, characterized in that: the input shaft is provided with an external thread, the inner side of the movable wheel is provided with an internal thread, the external thread and the internal thread are matched to form a screw pair, and one end of the external thread, which is far away from the output gear, is provided with a limiting check ring.
4. A mechanical one-way clutch structure according to claim 1, characterized in that: the side wall of the movable wheel is provided with a spring groove which surrounds the movable wheel for a circle, and the two clamping arms of the friction spring are positioned in the spring groove and clamp the movable wheel.
5. A mechanical one-way clutch structure according to claim 1, characterized in that: the friction spring is V-shaped, two clamping arms of the friction spring are bent towards the direction deviating from each other to form an arc shape, and the arc-shaped section can be tightly attached to the moving wheel; the guide rod is connected with one end of the friction spring, which is connected with the two clamping arms.
6. A mechanical one-way clutch structure according to claim 1, characterized in that: the friction spring and the guide rod are integrally formed.
7. A mechanical one-way clutch structure according to claim 1, characterized in that: the driving transmission part is a lug arranged on the moving wheel, and the driven transmission part is a groove arranged on the output gear and corresponding to the lug.
8. A mechanical one-way clutch structure according to claim 1, characterized in that: the driving transmission part is an outer gear ring or an inner gear sleeve arranged on the movable wheel, and the driven transmission part is an inner gear sleeve or an outer gear ring arranged on the output gear and corresponding to the outer gear ring or the inner gear sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020095453.8U CN211371091U (en) | 2020-01-16 | 2020-01-16 | Mechanical one-way clutch structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020095453.8U CN211371091U (en) | 2020-01-16 | 2020-01-16 | Mechanical one-way clutch structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211371091U true CN211371091U (en) | 2020-08-28 |
Family
ID=72171719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020095453.8U Active CN211371091U (en) | 2020-01-16 | 2020-01-16 | Mechanical one-way clutch structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211371091U (en) |
-
2020
- 2020-01-16 CN CN202020095453.8U patent/CN211371091U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211371091U (en) | Mechanical one-way clutch structure | |
| CN211127453U (en) | Bilateral drive gear shifting hub | |
| CN211398360U (en) | Mechanical one-way clutch | |
| CN102817971B (en) | Two-way controllable ratchet clutch transmission device | |
| CN107448576B (en) | Novel differential mechanism | |
| CN210715888U (en) | Electrically-driven mechanical static gear engaging mechanism | |
| CN112628372B (en) | Longitudinal driving self-adaptive taper clutch automatic speed changing system of electric automobile | |
| CN214189988U (en) | Middle-mounted transmission sensing variable speed electric drive system | |
| CN112628375B (en) | Central driving self-adaptive speed change assembly of tricycle | |
| CN212225897U (en) | Non-impact gear transmission | |
| CN111075854B (en) | Central-drive adaptive electric drive assembly with multi-plate friction clutch | |
| CN108679172B (en) | Coaxial linear speed change mechanism | |
| CN111016627B (en) | Central-driven intelligent self-adaptive electric driving system | |
| CN214999162U (en) | Dual-power automatic gearbox for electric vehicle | |
| CN108443428B (en) | Multi-gear gearbox for electric vehicle | |
| CN206889631U (en) | A kind of automatic transmission | |
| CN112610662A (en) | Automatic transmission | |
| CN112498565B (en) | Self-adaptive electric driving system with centrally-mounted transmission sensing multiple clutch plates | |
| CN214267876U (en) | Central electric drive transmission sensing self-adaptive variable speed electric drive wheel hub | |
| CN112678110B (en) | Self-adaptive speed-changing electric driving hub for central electric driving transmission sensing | |
| CN112498564B (en) | Centrally-mounted transmission sensing variable-speed electric driving system | |
| CN214189992U (en) | Wheel-side self-adaptive automatic speed-changing electric drive hub | |
| CN112628374B (en) | Self-adaptive automatic speed changing system for longitudinal driving transmission sensing of electric automobile | |
| CN214189989U (en) | Middle-arranged type transmission sensing multi-plate clutch self-adaptive electric driving system | |
| CN112623104B (en) | Central electric drive transmission sensing speed-changing electric driving hub |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |