CN219035377U

CN219035377U - One-way bearing

Info

Publication number: CN219035377U
Application number: CN202223014787.6U
Authority: CN
Inventors: 卞海昌; 覃佐章; 柳伟
Original assignee: Jiaxing Fkg Bearing Co ltd
Current assignee: Jiaxing Fkg Bearing Co ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-05-16
Anticipated expiration: 2032-11-14

Abstract

The utility model discloses a one-way bearing, which relates to the technical field of bearings and comprises an outer race, wherein an inner race is movably arranged on the inner wall of the outer race, a rotating shaft is movably arranged on the inner wall of the inner race, a shaft hole is formed in the middle of the rotating shaft, a clamping groove is formed in the inner side wall of the outer race, a limiting assembly is arranged on the outer side of the inner race, a one-way movable assembly is arranged on the inner side of the inner race, and a one-way groove is formed in the outer side of the rotating shaft. This one-way bearing, when anticlockwise rotation appears in the pivot, the one-way inslot wall of seting up in the pivot outside can carry out the joint to the deflection piece, and the pivot can drive deflection piece and inner race and do anticlockwise rotation, can drive trapezoidal stopper and carry out anticlockwise rotation when the inner race pivoted, trapezoidal stopper and draw-in groove joint under the effect of centrifugal force, and then comes to cushion reverse pivoted to the damage of pivot has been avoided.

Description

One-way bearing

Technical Field

The utility model relates to the technical field of bearings, in particular to a one-way bearing.

Background

The bearing is a component for fixing and reducing the friction coefficient of load in the mechanical transmission process, the application range of the bearing is quite wide, and the bearing has a plurality of types, wherein the one-way bearing is a bearing with a one-way rotation function, so the bearing is also called a one-way clutch.

When the unidirectional bearing in the prior art rotates in operation, the traditional unidirectional bearing achieves the purpose of unidirectional rotation through the friction among ball beads, the inner race and the outer race are easy to wear due to the fact that the balls are distributed densely and run for a long time, the existing unidirectional bearing does not have a buffering effect, when the unidirectional shaft suddenly changes direction, huge impact can cause damage to internal components, and the service life of the unidirectional shaft is further influenced.

Disclosure of Invention

The utility model provides a one-way bearing which has the advantages of small abrasion, one-way rotation, protection, buffering and part damage reduction, so as to solve the problems of high loss and no protection of the traditional one-way shaft.

In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a one-way bearing, includes the outer race, the inner wall movable mounting of outer race has the inner race, the inner wall movable mounting of inner race has the pivot, the shaft hole has been seted up at the middle part of pivot, the draw-in groove has been seted up to the inside wall of outer race, the outside of inner race is provided with spacing subassembly, the inboard of inner race is provided with one-way movable assembly, the outside of pivot is provided with one-way groove.

As a preferable technical scheme of the utility model, the limiting component comprises a traction spring, a trapezoid limiting block and a movable groove, wherein the movable groove is formed in the outer side of the inner race, the trapezoid limiting block is movably arranged on the inner wall of the movable groove, one end of the traction spring is fixedly arranged at the inner side end of the trapezoid limiting block, and the other end of the traction spring is fixedly arranged on the inner wall of the movable groove.

As a preferable technical scheme of the utility model, the unidirectional movable assembly comprises balls, a fixed shaft and a reset spring, wherein the inner side wall of the inner race is provided with a bead groove, the balls are movably arranged on the inner wall of the bead groove, the inner side wall of the inner race is provided with a shrinkage groove, the fixed shaft is fixedly arranged on the inner wall of the shrinkage groove, one end of the reset spring is fixedly arranged on the outer side of the fixed shaft, and the other end of the reset spring is fixedly arranged on the inner wall of the shrinkage groove.

As a preferable technical scheme of the utility model, the unidirectional movable assembly further comprises a deflection block, and one end of the deflection block is movably arranged at the outer side of the fixed shaft.

As a preferable technical scheme of the utility model, the unidirectional groove is in a leaf shape, and one end of the deflection block is attached to the inner wall of the unidirectional groove.

As a preferable technical scheme of the utility model, the initial state of the traction spring is in an original long state, and the initial state of the trapezoid limiting block and the clamping groove is in a separated state.

Compared with the prior art, the utility model provides the one-way bearing, which has the following beneficial effects:

1. this one-way bearing, when anticlockwise rotation appears in the pivot, the one-way inslot wall of seting up in the pivot outside can carry out the joint to the deflection piece, and the pivot can drive deflection piece and inner race and do anticlockwise rotation, can drive trapezoidal stopper and carry out anticlockwise rotation when the inner race pivoted, trapezoidal stopper and draw-in groove joint under the effect of centrifugal force, and then comes to cushion reverse pivoted to the damage of pivot has been avoided.

2. This one-way bearing is mainly used to contact with the outside of pivot through setting up a plurality of balls, and wherein pivot and inner race contact, and it is more smooth and easy to make the pivot rotate, reduces the sliding friction of pivot and inner race inside wall, and then rotates it into rolling friction, and then reduces the loss of part.

Drawings

FIG. 1 is a perspective view of a one-way bearing structure according to the present utility model;

FIG. 2 is a schematic view of the inner race structure of the present utility model;

FIG. 3 is a schematic cross-sectional view of the inner race structure of the present utility model;

fig. 4 is an enlarged schematic view of the structure of the portion a in fig. 3 according to the present utility model.

In the figure: 1. an outer race; 2. a rotating shaft; 3. an inner race; 4. a shaft hole; 5. a movable groove; 6. a clamping groove; 7. a trapezoid limiting block; 8. a traction spring; 9. a ball; 10. a unidirectional groove; 11. a deflection block; 12. a return spring; 13. and a fixed shaft.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the utility model discloses a one-way bearing, which comprises an outer race 1, an inner race 3 is movably mounted on the inner wall of the outer race 1, a rotating shaft 2 is movably mounted on the inner wall of the inner race 3, a shaft hole 4 is formed in the middle of the rotating shaft 2, a clamping groove 6 is formed in the inner side wall of the outer race 1, a limiting component is arranged on the outer side of the inner race 3, a one-way movable component is arranged on the inner side of the inner race 3, and a one-way groove 10 is formed in the outer side of the rotating shaft 2.

Specifically, the spacing subassembly includes traction spring 8, trapezoidal stopper 7, movable groove 5, and movable groove 5 has been seted up in the outside of inner race 3, and trapezoidal stopper 7 movable mounting is at movable groove 5 inner wall, and traction spring 8's one end fixed mounting is at trapezoidal stopper 7's inboard end, and traction spring 8's the other end fixed mounting is at movable groove 5 inner wall.

In this embodiment, through setting up trapezoidal stopper 7 and traction spring 8 and mainly being used for spacing inner race 3 to make to fix a position pivot 2 and make it can not continue to rotate, wherein set up traction spring 8 and mainly be used for pulling trapezoidal stopper 7, will follow movable groove 5 inner wall outside motion and carry out the joint with draw-in groove 6 when trapezoidal stopper 7 receives centrifugal force and be greater than traction spring 8's traction force.

Specifically, the unidirectional movable assembly comprises a ball 9, a fixed shaft 13 and a return spring 12, wherein a ball groove is formed in the inner side wall of the inner race 3, the ball 9 is movably mounted on the inner wall of the ball groove, a shrinkage groove is formed in the inner side wall of the inner race 3, the fixed shaft 13 is fixedly mounted on the inner wall of the shrinkage groove, one end of the return spring 12 is fixedly mounted on the outer side of the fixed shaft 13, and the other end of the return spring 12 is fixedly mounted on the inner wall of the shrinkage groove.

In this embodiment, the balls 9 are mainly used to contact with the outer side of the rotating shaft 2, so that the rotating shaft 2 rotates more smoothly, friction between the rotating shaft 2 and the inner side wall of the inner race 3 is reduced, and the fixing shaft 13 is mainly used to connect with other parts in the unidirectional movable assembly, wherein the return spring 12 mainly plays a role in traction.

Specifically, the unidirectional movable assembly further comprises a deflection block 11, and one end of the deflection block 11 is movably arranged on the outer side of the fixed shaft 13.

In the present embodiment, the deflection block 11 is provided to mainly limit the rotation direction of the rotation shaft 2, so that the rotation shaft 2 can only rotate in the same direction, wherein the deflection block 11 can rotate along the outer side of the fixed shaft 13 and compress the return spring 12.

Specifically, the unidirectional groove 10 has a leaf shape, and one end of the deflection block 11 is attached to the inner wall of the unidirectional groove 10.

In this embodiment, the unidirectional groove 10 is mainly used for limiting the deflection block 11, wherein the unidirectional groove 10 has a certain inclination, so that the deflection block 11 is extruded.

Specifically, the initial state of the traction spring 8 is in the original length state, and the initial state of the trapezoidal stopper 7 and the card slot 6 is in the separated state.

In this embodiment, the traction spring 8 is mainly used to pull the trapezoid stopper 7, so long as the inner race 3 is in a stationary state, the clamping groove 6 and the trapezoid stopper 7 are always in a separated state.

The working principle and the using flow of the utility model are as follows: when the rotary shaft is used, the transmission shaft is connected with the shaft hole 4 through the bolt, the transmission shaft is connected with the rotary shaft 2 into a whole, when the transmission shaft drives the rotary shaft 2 to rotate clockwise, the inner wall of the unidirectional groove 10 formed in the outer side of the rotary shaft 2 can resist the deflection block 11, the deflection block 11 can rotate anticlockwise around the outer side of the fixed shaft 13 and shrink to the inner wall of the shrinkage groove, the reset spring 12 is compressed and stores certain elastic potential energy under the resist pressure of the deflection block 11, the rotary shaft 2 can only do clockwise circular motion, when the transmission shaft drives the rotary shaft 2 to rotate anticlockwise, the inner wall of the unidirectional groove 10 formed in the outer side of the rotary shaft 2 can clamp the deflection block 11, the rotary shaft 2 drives the deflection block 11 and the inner race 3 to rotate anticlockwise, the trapezoidal limiting block 7 can be driven to rotate anticlockwise when the inner race 3 rotates, and centrifugal force borne by the trapezoidal limiting block 7 is larger than traction force of the traction spring 8 can move outwards along the inner wall of the movable groove 5 and clamp the clamping groove 6, and rotation of the inner race 3 and the rotary shaft 2 is limited.

Claims

1. A one-way bearing comprising an outer race (1), characterized in that: inner wall movable mounting of outer race (1) has inner race (3), inner wall movable mounting of inner race (3) has pivot (2), shaft hole (4) have been seted up at the middle part of pivot (2), draw-in groove (6) have been seted up to the inside wall of outer race (1), the outside of inner race (3) is provided with spacing subassembly, the inboard of inner race (3) is provided with one-way movable subassembly, the outside of pivot (2) is provided with one-way groove (10).

2. A one-way bearing according to claim 1, wherein: the limiting assembly comprises a traction spring (8), a trapezoid limiting block (7) and a movable groove (5), the movable groove (5) is formed in the outer side of the inner race (3), the trapezoid limiting block (7) is movably mounted on the inner wall of the movable groove (5), one end of the traction spring (8) is fixedly mounted at the inner side end of the trapezoid limiting block (7), and the other end of the traction spring (8) is fixedly mounted on the inner wall of the movable groove (5).

3. A one-way bearing according to claim 1, wherein: the one-way movable assembly comprises a ball (9), a fixed shaft (13) and a reset spring (12), wherein a ball groove is formed in the inner side wall of the inner race (3), the ball (9) is movably mounted on the inner wall of the ball groove, a shrinkage groove is formed in the inner side wall of the inner race (3), the fixed shaft (13) is fixedly mounted on the inner wall of the shrinkage groove, one end of the reset spring (12) is fixedly mounted on the outer side of the fixed shaft (13), and the other end of the reset spring (12) is fixedly mounted on the inner wall of the shrinkage groove.

4. A one-way bearing according to claim 3, wherein: the unidirectional movable assembly further comprises a deflection block (11), and one end of the deflection block (11) is movably arranged on the outer side of the fixed shaft (13).

5. A one-way bearing according to claim 1, wherein: the unidirectional groove (10) is in a leaf shape, and one end of the deflection block (11) is attached to the inner wall of the unidirectional groove (10).

6. A one-way bearing according to claim 2, wherein: the initial state of the traction spring (8) is in an original long state, and the initial state of the trapezoid limiting block (7) and the clamping groove (6) is in a separated state.