CN204025329U

CN204025329U - Controllable type bearing

Info

Publication number: CN204025329U
Application number: CN201420463539.6U
Authority: CN
Inventors: 陈城伟
Original assignee: WENLING XINBIAO PRECISION BEARINGS Co Ltd
Current assignee: WENLING XINBIAO PRECISION BEARINGS Co Ltd
Priority date: 2014-08-16
Filing date: 2014-08-16
Publication date: 2014-12-17
Anticipated expiration: 2024-08-16

Abstract

The utility model discloses a kind of controllable type bearing, described bearing inner ring is provided with the ring-type running through sliding cavity and controls groove, it is coaxial with bearing inner ring that described ring-type controls groove, described ring-type controls groove inner wall and is provided with internal thread, described ring-type controls to be provided with control ring in groove, described control ring is provided with and internal thread transition fit outside thread, described spring one end is fixedly connected with check pawl in sliding cavity, the spring the other end be fixed with can when screwing control ring by check pawl to for release control slide block.When check pawl is released by needs in sliding cavity, just can directly control ring be controlled to screw out in groove from ring-type, allow check pawl and ratchet inconsistent, controllable type bearing just can only carry out single direction rotation, and in the process of operation, all check pawls just can be made to stretch out in sliding cavity together only by turn control ring, operate more efficient and convenient, but also allowing the movement of all check pawls can realize synchronously, the distance of movement is all identical.

Description

Controllable type bearing

Technical field

The utility model relates to a kind of bearing, and more particularly, it relates to a kind of controllable type bearing.

Background technique

Along with axle industrial expansion, for meeting different needs, go out a bit various bearing, but in order to meet the motion of some special entities, often need bearing single direction rotation, or optionally unidirectional or bidirectional rotation, the general plain bearing on market can not meet special circumstances here.So just there has been application number to be: the patent of 201420044945.9, establish in patent upper, unidirectional or the bidirectional rotation of bearing can be controlled although solve, but in order to safety, often need multiple check pawl together to stretch out with ratchet in sliding cavity inconsistent, the controlled bearing of such guarantee can safety and firmness carry out individual event rotation, in above-mentioned patent, can only operate separately single check pawl, operation is wasted time and energy, and in operation, may because of unbalance stress, the length that each check pawl is stretched out is not identical, so not only add operation easier, but also easily cause bearing using the wearing and tearing being, more accident potential may be become.

Model utility content

For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of controllable type bearing simple to operation.

For achieving the above object, the utility model provides following technological scheme: a kind of controllable type bearing, comprise outer race and bearing inner ring, described bearing inner ring is provided with mounting hole, ball is provided with between described outer race and bearing inner ring, described bearing one end is provided with internal messing ratchet mechanism, described internal messing ratchet mechanism comprises ratchet, check pawl and can by check pawl radial direction eject the thrust spring be meshed with ratchet, described ratchet is arranged on outer race inwall, described bearing inner ring is provided with some sliding cavities, described check pawl is arranged in sliding cavity, described bearing inner ring is provided with the ring-type running through sliding cavity and controls groove, it is coaxial with bearing inner ring that described ring-type controls groove, described ring-type controls groove inner wall and is provided with internal thread, described ring-type controls to be provided with control ring in groove, described control ring is provided with and internal thread transition fit outside thread, described thrust spring one end is fixedly connected with check pawl in sliding cavity, the thrust spring the other end be fixed with can when screwing control ring by check pawl to for release control slide block.

The utility model is set to further: described control upper end of slide block is provided with tip chute, described tip chute comprises the vertical plane parallel to each other with control ring and the plane of inclination crossing with vertical plane, described vertical plane is positioned at the distalmost end of inclination annular groove and bearing inner ring place axis, and described control ring end is inconsistent with plane of inclination all the time.The utility model is set to further: be provided with ejector spring between described control slide block and sliding cavity.

By adopting technique scheme, when check pawl is released by needs in sliding cavity, just can directly control ring be controlled to screw out in groove from ring-type, at this moment check pawl will eject in sliding cavity to ratchet direction by ejector spring, allow check pawl and ratchet inconsistent, such controllable type bearing just can only carry out single direction rotation, and in the process of operation, all check pawls just can be made to stretch out in sliding cavity together only by turn control ring, not only operate more efficient and convenient, but also allow the movement of all check pawls can realize synchronously, the distance of movement is all identical.

The utility model is set to further: described control ring upper end controls groove internal projection from ring-type and is provided with operation ring.

By adopt technique scheme, by operation ring just can better Quick labor-saving rotation process is carried out to control ring, better time saving and energy saving.

Accompanying drawing explanation

Fig. 1 is the plan view of the utility model controllable type bearing embodiment;

Fig. 2 is the partial enlarged drawing of A in Fig. 1;

Fig. 3 is that the utility model controllable type bearing embodiment can the sectional view of bidirectional rotation;

Fig. 4 is the partial enlarged drawing of B in Fig. 3;

Fig. 5 is the sectional view of the utility model controllable type bearing embodiment single direction rotation only;

Fig. 6 is the partial enlarged drawing of C in Fig. 5.

Reference character: 1, outer race; 11, ratchet; 2, bearing inner ring; 21, sliding cavity; 22, ring-type controls groove; 221, internal thread; 3, mounting hole; 4, ball; 5, check pawl; 6, thrust spring; 7, slide block is controlled; 71, tip chute; 711, vertical plane; 712, plane of inclination; 8, control ring; 81, outside thread; 82, ring is operated; 9, ejector spring.

Embodiment

Referring to figs. 1 through Fig. 6, the utility model controllable type bearing embodiment is described further.

A kind of controllable type bearing, comprise outer race 1 and bearing inner ring 2, described bearing inner ring 2 is provided with mounting hole 3, ball 4 is provided with between described outer race 1 and bearing inner ring 2, described bearing one end is provided with internal messing ratchet 11 mechanism, described internal messing ratchet 11 mechanism comprises ratchet 11, check pawl 5 and check pawl 5 radial direction can be ejected the thrust spring 6 be meshed with ratchet 11, and described ratchet 11 is arranged in outer race 1.Described bearing inner ring 2 is provided with the ring-type running through sliding cavity 21 and controls groove 22, it is coaxial with bearing inner ring 2 that described ring-type controls groove 22, described ring-type controls groove 22 inwall and is provided with internal thread 221, described ring-type controls to be provided with control ring 8 in groove 22, described control ring 8 is provided with and internal thread 221 transition fit outside thread 81, described thrust spring 6 one end is fixedly connected with check pawl 5 in sliding cavity 21, and thrust spring 6 the other end is fixed with the control slide block 7 that check pawl 5 and ratchet can be made when screwing control ring 8 inconsistent.

Described control slide block 7 upper end is provided with tip chute 71, described tip chute 71 comprises the vertical plane 711 parallel to each other with control ring 8 and the plane of inclination 712 crossing with vertical plane 711, described vertical plane 711 is positioned at the distalmost end of inclination annular groove and bearing inner ring 2 place axis, and described control ring 8 end is inconsistent with plane of inclination 712 all the time.

Exist in the operating process of reality, when needing check pawl 5 to release in sliding cavity 21, just can directly control ring 8 be controlled in groove 22 to outer turn from ring-type, after turn control ring 8, control ring 8 is made to increase with the conflict point of plane of inclination 712, like this when bearing working rotates, just control slide block 7 because the effect of centrifugal force is to this not inconsistent with ratchet 11 check pawl 5 will be inconsistent with ratchet 11 in order to slide at this moment, such controllable type bearing just can only carry out single direction rotation, and in the process of operation, all check pawls 5 just can be made to stretch out in sliding cavity 21 together only by turn control ring 8, not only operate more efficient and convenient, but also allow the movement of all check pawls 5 can realize synchronously, the distance of movement is all identical.

When controllable type bearing is converted into Double-directional rotary from one-way rotation by needs again, just can turn control ring 8, control ring 8 precession ring-type is gradually made to control in groove 22, effect like this by controlling the tip chute 71 on slide block 7 just can allow check pawl 5 gradually contraction understand in sliding cavity 21, make check pawl 5 away from ratchet 11, such controllable type bearing can carry out bidirectional rotation again.

Ejector spring 9 is provided with between described control slide block 7 and sliding cavity 21.

By the effect of ejector spring 9, when turn control ring 8, by the effect of ejector spring 9, kinetic energy makes control ring 8 be all inconsistent all the time with the plane of inclination 712 of control slide block 7, unidirectional with the two-way conversion of whole bearing so not only can be made sharper, and can also effectively prevent control slide block 7 from sliding cavity 21, unnecessary movement occurring, effectively can reduce noise, reduce friction, greatly improving product is working life.

Described control ring 8 upper end controls groove 22 internal projection from ring-type and is provided with operation ring 82.By operation ring 82 just can better Quick labor-saving rotation process is carried out to control ring 8, better time saving and energy saving, but also can at materials such as operation ring 82 outer surface covered protection rubber, it is more comfortable when people can be allowed to operate like this, and the frictional force to hand when effectively can also be increased in gripping, prevent from skidding.

The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. a controllable type bearing, comprise outer race and bearing inner ring, described bearing inner ring is provided with mounting hole, ball is provided with between described outer race and bearing inner ring, described bearing one end is provided with internal messing ratchet mechanism, described internal messing ratchet mechanism comprises ratchet, check pawl and can by check pawl radial direction eject the thrust spring be meshed with ratchet, described ratchet is arranged on outer race inwall, described bearing inner ring is provided with some sliding cavities, described check pawl is arranged in sliding cavity, it is characterized in that: described bearing inner ring is provided with the ring-type running through sliding cavity and controls groove, it is coaxial with bearing inner ring that described ring-type controls groove, described ring-type controls groove inner wall and is provided with internal thread, described ring-type controls to be provided with control ring in groove, described control ring is provided with the outside thread with internal thread transition fit, described thrust spring one end is fixedly connected with check pawl in sliding cavity, the thrust spring the other end is fixed with and check pawl can be made when turn control ring to the control slide block inconsistent with ratchet.

2. controllable type bearing according to claim 1, it is characterized in that: described control upper end of slide block is provided with tip chute, described tip chute comprises the vertical plane parallel to each other with control ring and the plane of inclination crossing with vertical plane, described vertical plane is positioned at the distalmost end of inclination annular groove and bearing inner ring place axis, and described control ring end is inconsistent with plane of inclination all the time.

3. controllable type bearing according to claim 2, is characterized in that: be provided with ejector spring between described control slide block and sliding cavity.

4. controllable type bearing according to claim 3, is characterized in that: described control ring upper end controls groove internal projection from ring-type and is provided with operation ring.