CN213541116U - Self-supporting roller clutch - Google Patents
Self-supporting roller clutch Download PDFInfo
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- CN213541116U CN213541116U CN202022430712.0U CN202022430712U CN213541116U CN 213541116 U CN213541116 U CN 213541116U CN 202022430712 U CN202022430712 U CN 202022430712U CN 213541116 U CN213541116 U CN 213541116U
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- outer ring
- torque transmission
- spring
- rollers
- inner ring
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Abstract
The utility model relates to a roller clutch technical field, in particular to a self-supporting roller clutch, which comprises an inner ring, an outer ring and two plate springs, wherein the outer ring is sleeved outside the inner ring, the plate springs comprise a plate body and spring pieces distributed along the circumferential direction at intervals, the spring pieces of the plate springs are in one-to-one correspondence with torque transmission rollers, and the spring pieces of the plate springs are all propped against the torque transmission rollers corresponding to the plate springs, the outer ring of the self-supporting roller clutch is radially supported on the inner ring by the support rollers to realize the self-supporting of the clutch, and the two plate springs are adopted to provide elasticity for all the torque transmission rollers, so that when in assembly, the two plate springs are only needed to be fixed on two sides of the outer ring, the spring pieces can be positioned at the positions corresponding to the torque transmission rollers one by one, the assembly flow is simplified, the process cost is obviously reduced, and the spring pieces are, the service life and the reliability of the whole clutch are obviously improved.
Description
Technical Field
The utility model belongs to the technical field of roller clutch technique and specifically relates to a self-supporting roller clutch.
Background
The overrunning clutch is a basic component which appears along with the development of mechatronics products, and is an important part for power transmission and separation functions between a prime mover and a working machine or between a driving shaft and a driven shaft in the machine. It is a device with self-clutch function by using speed change or rotation direction change of driving and driven parts
Chinese patent publication No. CN 207333499U discloses a roller self-supporting overrunning clutch, in which an outer ring is radially supported on an inner ring by supporting rollers to realize self-supporting of the overrunning clutch, but the number of spring leaves required is large, which results in tedious assembly and high process cost, and assembly errors are likely to occur during assembly of a single spring leaf, resulting in poor service life and reliability.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve the problems that the roller self-supporting overrunning clutch in the prior art is complex to assemble and high in process cost, the self-supporting roller clutch is provided.
The utility model provides a technical scheme that its technical problem adopted is: a self-supporting roller clutch comprises an inner ring, an outer ring and two plate springs, wherein the outer ring is sleeved outside the inner ring, a plurality of torque transmission rollers and a plurality of supporting rollers are distributed between the inner ring wall of the outer ring and the outer ring wall of the inner ring, a plurality of cam grooves are arranged on the inner ring wall of the outer ring at intervals along the circumferential direction of the inner ring wall, the torque transmission rollers and the cam grooves are in one-to-one correspondence, the torque transmission rollers are positioned in the cam grooves corresponding to the torque transmission rollers, and at least one supporting roller is distributed between every two adjacent torque transmission rollers;
the plate spring includes plate body and follows its circumference interval distribution's spring leaf, two the plate body of plate spring is fixed respectively in the both sides of outer loop, the spring leaf and the moment of torsion transmission roller one-to-one of plate spring, the spring leaf of plate spring all supports the moment of torsion transmission roller rather than corresponding, and moment of torsion transmission roller is bulldozed to the tip cell wall of cam groove by the spring leaf.
In the scheme, the outer ring utilizes the supporting rollers to radially support the inner ring, the clutch is self-supported, the two plate springs are adopted to provide elasticity for all torque transmission rollers, only the two plate springs are required to be fixed on two sides of the outer ring during assembly, the spring pieces can be located at positions corresponding to the torque transmission rollers one by one, the assembly flow is simplified, the process cost is obviously reduced, the spring pieces are respectively fixed on the corresponding plate bodies, the position of the spring pieces can be ensured not to be loosened, and the service life and the reliability of the whole clutch are obviously improved.
Further, the spring piece is arc-shaped.
Further, the spring piece of one of the two leaf springs intersects with the spring piece of the other leaf spring; thereby can prolong the spring leaf, increase the elasticity work interval of spring leaf, improve the working life of spring leaf to form two some supports to moment of torsion transmission roller.
Furthermore, a plurality of arc-shaped grooves matched with the supporting rollers are formed in the inner ring wall of the outer ring, the supporting rollers correspond to the arc-shaped grooves one by one, and the supporting rollers are located in the arc-shaped grooves; therefore, the arc-shaped groove can be positioned, the circumferential position of the supporting roller is prevented from changing, and the interference between the supporting roller and the torque transmission roller is avoided.
The torque transmission device comprises an outer ring, two leaf springs and an outer ring, wherein the outer ring is provided with a side end cover, the side end cover is provided with a torque transmission roller, the torque transmission roller is arranged on the side end cover, and the side end cover is provided with a supporting roller; the design of the two end covers can limit all the torque transmission rollers and all the supporting rollers between the outer ring and the inner ring, and prevent the torque transmission rollers and the supporting rollers from falling off from the space between the outer ring and the inner ring.
Further, an outer ring is coaxially fixed on the outer side of the outer ring, and the outer ring, the two plate springs and the two end covers are fixedly connected through rivets.
The utility model has the advantages that: the utility model discloses a self-supporting roller clutch outer ring utilizes the radial support of support roller on the inner ring, realize the self-supporting of clutch, and adopt two leaf springs to provide elasticity for all moment of torsion transmission rollers, realize when the assembly, only need to fix two leaf springs in the both sides of outer loop, alright make the spring leaf be in the position corresponding with moment of torsion transmission roller one by one, simplify the assembly flow, the reduction that technology cost is showing, and each spring leaf is fixed respectively on its plate body that corresponds, can ensure that the position of spring leaf can not take place not hard up, the life and the reliability of whole clutch obtain the improvement that is showing.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is an exploded schematic view of the self-supporting roller clutch of the present invention;
FIG. 2 is a three-dimensional schematic view of the self-supporting roller clutch of the present invention;
FIG. 3 is a schematic front view of the self-supporting roller clutch with the end cap removed;
FIG. 4 is a schematic cross-sectional view of the self-supporting roller clutch of the present invention;
FIG. 5 is an enlarged partial schematic view of A in FIG. 4;
FIG. 6 is a schematic longitudinal cross-sectional view of the self-supporting roller clutch of the present invention;
FIG. 7 is an enlarged partial schematic view of B of FIG. 6;
FIG. 8 is a schematic view of two leaf springs in the self-supporting roller clutch of the present invention;
fig. 9 is a schematic view showing the spring plate of two plate springs crossing each other in the self-supporting roller clutch of the present invention.
In the figure: 1. inner ring, 2, outer ring, 201, cam groove, 202, arc groove, 3, plate spring, 301, plate body, 302, spring piece, 4, torque transmission roller, 5, support roller, 6, end cover, 7, outer ring, 8 and rivet.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic drawings, which illustrate the basic structure of the invention only in a schematic way, and thus show only the components that are relevant to the invention, and the directions and references (e.g., upper, lower, left, right, etc.) may be used only to help describe the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
Example 1
As shown in fig. 1 to 9, a self-supporting roller clutch includes an inner ring 1, an outer ring 2 and two plate springs 3, the outer ring 2 is sleeved outside the inner ring 1, a plurality of torque transmission rollers 4 and a plurality of support rollers 5 are distributed between an inner ring wall of the outer ring 2 and an outer ring wall of the inner ring 1, a plurality of cam grooves 201 are arranged on the inner ring wall of the outer ring 2 at intervals along the circumferential direction thereof, the torque transmission rollers 4 are in one-to-one correspondence with the cam grooves 201, the torque transmission rollers 4 are located in the cam grooves 201 corresponding thereto, and at least one support roller 5 is distributed between two adjacent torque transmission rollers 4;
the plate spring 3 comprises plate bodies 301 and spring pieces 302 distributed along the circumferential direction of the plate bodies 301 at intervals, the plate bodies 301 of the two plate springs 3 are respectively fixed on two sides of the outer ring 2, the spring pieces 302 of the plate springs 3 correspond to the torque transmission rollers 4 one by one, the spring pieces 302 of the plate springs 3 are respectively propped against the torque transmission rollers 4 corresponding to the spring pieces, and the torque transmission rollers 4 are pushed to the small end groove walls of the cam grooves 201 by the spring pieces 302.
The spring plate 302 is curved.
The spring plate 302 of one of the two leaf springs 3 intersects the spring plate 302 of the other; thereby, the spring plate 302 can be extended, the elastic operating range of the spring plate 302 can be increased, the operating life of the spring plate 302 can be prolonged, and the torque transmission roller 4 can be supported in two points.
The inner ring wall of the outer ring 2 is provided with a plurality of arc-shaped grooves 202 matched with the supporting rollers 5, the supporting rollers 5 correspond to the arc-shaped grooves 202 one by one, and the supporting rollers 5 are positioned in the arc-shaped grooves 202 in which the supporting rollers are positioned; thus, the arc-shaped groove 202 can be positioned, the circumferential position of the support roller 5 is prevented from changing, and the support roller 5 and the torque transmission roller 4 are prevented from interfering with each other.
The two end covers 6 are respectively fixed at two ends of the outer ring 2, the two plate springs 3 and the outer ring 2 are positioned between the two end covers 6, and the end parts of the torque transmission rollers 4 and the end parts of the support rollers 5 are opposite to the end covers 6 on the side where the torque transmission rollers are positioned; the design of the two end caps 6 restricts all the torque transfer rollers 4 and all the support rollers 5 between the outer ring 2 and the inner ring 1, preventing the torque transfer rollers 4 and the support rollers 5 from falling out from between the outer ring 2 and the inner ring 1.
An outer ring 7 is coaxially fixed on the outer side of the outer ring 2, and the outer ring 7, the two plate springs 3 and the two end covers 6 are fixedly connected through rivets 8.
In this embodiment, a plurality of teeth are distributed on the outer circumferential surface of the outer ring 7.
In this embodiment, when the clockwise rotation speed of the outer ring 2 is greater than the clockwise rotation speed of the inner ring 1, the torque transmission roller 4 contacts with the groove wall of the small end of the cam groove 201, so that the torque of the outer ring 2 is transmitted to the inner ring 1 through the torque transmission roller 4; when the clockwise rotating speed of the outer ring 2 is less than the clockwise rotating speed of the inner ring 1, the torque transmission rollers 4 compress the spring pieces 302 under the action of the inner ring 1 and move to the large ends of the cam grooves 201, and at the moment, gaps exist between the cam grooves 201 of the outer ring 2 and the torque transmission rollers 4, so that the inner ring 1 and the outer ring 2 are unlocked, the inner ring 1 and the outer ring 2 run independently at the moment, and overrunning is realized, wherein the outer ring 2 is radially supported on the inner ring 1 by the support rollers 5 all the time.
Wherein, outer loop 2 utilizes support roller 5 radial support on inner ring 1 in this scheme, realize the self-supporting of clutch, and adopt two leaf springs 3 to provide elasticity for all moment of torsion transmission rollers 4, realize when the assembly, only need to fix two leaf springs 3 in the both sides of outer loop 2, alright make spring leaf 302 be in the position corresponding with moment of torsion transmission rollers 4 one by one, simplify the assembly flow, the reduction that technology cost is showing, and each spring leaf 302 is fixed respectively on its plate body 301 that corresponds, can ensure that the position of spring leaf 302 can not take place to become flexible, the life and the reliability of whole clutch obtain showing improvement.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. A self-supporting roller clutch, characterized by: the novel bearing comprises an inner ring (1), an outer ring (2) and two plate springs (3), wherein the outer ring (2) is sleeved outside the inner ring (1), a plurality of torque transmission rollers (4) and a plurality of support rollers (5) are distributed between the inner ring wall of the outer ring (2) and the outer ring wall of the inner ring (1), a plurality of cam grooves (201) are arranged on the inner ring wall of the outer ring (2) at intervals along the circumferential direction of the inner ring wall, the torque transmission rollers (4) correspond to the cam grooves (201) one by one, the torque transmission rollers (4) are positioned in the cam grooves (201) corresponding to the torque transmission rollers, and at least one support roller (5) is distributed between every two adjacent torque transmission rollers (4);
leaf spring (3) are including plate body (301) and along its circumference interval distribution's spring leaf (302), two the both sides at outer ring (2) are fixed respectively in plate body (301) of leaf spring (3), spring leaf (302) and the torque transmission roller (4) one-to-one of leaf spring (3), spring leaf (302) of leaf spring (3) all support torque transmission roller (4) rather than corresponding, and torque transmission roller (4) are bulldozed by spring leaf (302) to the tip cell wall of cam groove (201).
2. The self supporting roller clutch of claim 1, wherein: the spring piece (302) is arc-shaped.
3. The self supporting roller clutch of claim 1, wherein: the spring plate (302) of one of the two leaf springs (3) intersects the spring plate (302) of the other leaf spring.
4. The self supporting roller clutch of claim 1, wherein: the inner ring wall of the outer ring (2) is provided with a plurality of arc-shaped grooves (202) matched with the supporting rollers (5), the supporting rollers (5) are in one-to-one correspondence with the arc-shaped grooves (202), and the supporting rollers (5) are located in the arc-shaped grooves (202) where the supporting rollers are located.
5. The self supporting roller clutch of claim 1, wherein: the torque transmission device is characterized by further comprising two end covers (6), wherein the two end covers (6) are respectively fixed at two ends of the outer ring (2), the plate spring (3) and the outer ring (2) are located between the two end covers (6), and the end portions of the torque transmission roller (4) and the supporting roller (5) are opposite to the end covers (6) on the side where the torque transmission roller is located.
6. The self supporting roller clutch of claim 1, wherein: the outer ring (7) is coaxially fixed on the outer side of the outer ring (2), and the outer ring (7), the two plate springs (3) and the two end covers (6) are fixedly connected through rivets (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022430712.0U CN213541116U (en) | 2020-10-27 | 2020-10-27 | Self-supporting roller clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022430712.0U CN213541116U (en) | 2020-10-27 | 2020-10-27 | Self-supporting roller clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213541116U true CN213541116U (en) | 2021-06-25 |
Family
ID=76501200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022430712.0U Active CN213541116U (en) | 2020-10-27 | 2020-10-27 | Self-supporting roller clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213541116U (en) |
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2020
- 2020-10-27 CN CN202022430712.0U patent/CN213541116U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 213000 Longxiang Road, Wujin high tech Development Zone, Changzhou City, Jiangsu Province Patentee after: Jiangsu Nanfang Precision Industry Co.,Ltd. Address before: 213164 No.9, Longxiang Road, Wujin high tech Zone, Changzhou City, Jiangsu Province Patentee before: Jiangsu Nanfang Bearing Co.,Ltd. |
|
| CP03 | Change of name, title or address |