CN209262121U

CN209262121U - A kind of moped five leads to one-direction bearing structure

Info

Publication number: CN209262121U
Application number: CN201821974315.6U
Authority: CN
Inventors: 卓岚
Original assignee: Wuxi Chuan Ke Intelligent Motor Co Ltd
Current assignee: Wuxi Chuan Ke Intelligent Motor Co Ltd
Priority date: 2018-11-28
Filing date: 2018-11-28
Publication date: 2019-08-16
Anticipated expiration: 2028-11-28

Abstract

Lead to one-direction bearing structure, including output gear and five axises the utility model discloses a kind of moped five, is sequentially connected five axis in the gear hub of the output gear by unilateral bearing；A pair of annular body is further sleeved on five axis；The unilateral bearing folder is located between the two annular bodies；The copper sheathing or oiliness bearing of the unilateral bearing two sides of the utility model play the role of support and carrying, the bearing capacity of unilateral bearing is effectively relieved, at the same time since unilateral bearing folder is located between two annular bodies, which also acts as the axis location effect to unilateral bearing.

Description

A kind of moped five leads to one-direction bearing structure

Technical field

The utility model belongs to bicycle art more particularly to a kind of moped five leads to one-direction bearing structure.

Background technique

Bicycle bottom bracket axis often uses click to be driven with output gear, and click is in transmission process Can there are certain noise and vibration, influence high-end user experience；It is also easy to generate positioning shakiness using one-direction bearing structure The phenomenon that.

Summary of the invention

Goal of the invention: in order to overcome the deficiencies in the prior art, the utility model provides a kind of structure simple one Kind moped five leads to one-direction bearing structure.

Technical solution: to achieve the above object, a kind of moped five of the utility model leads to one-direction bearing structure, packet It includes output gear and five axises, is sequentially connected five axis in the gear hub of the output gear by unilateral bearing；Institute It states and is further sleeved with a pair of annular body on five axises；The unilateral bearing folder is located between the two annular bodies.

It further, further include position of bearings retainer；The position of bearings retainer is tubular structure, the bearing position The cylinder both ends for setting retainer are respectively arranged with the first inner edge and the second inner edge；The two annular bodies and unilateral bearing press from both sides position Between the first inner edge and the second inner edge.

Further, the inner wall of the cylinder body outer wall of the position of bearings retainer and the gear hub is interference fitted；Institute State the first inner edge and the second inner edge with the five axises clearance fit.

Further, the inner wall of the gear hub is provided with limit inner edge, and one end of the limit inner edge presses contact One end of the position of bearings retainer.

It further, further include the housing end plug being fixedly mounted, the inside integrated coaxial heart setting of the housing end plug There is end cap cylinder, the inner wall of the end cap cylinder and the outer wall of the gear hub are rotatablely connected by deep groove ball bearing.

Further, the both ends of five axis are respectively pedal crank mounting portion, on the two pedal crank mounting portions Pedal crank can be installed.

Further, the limit inner edge is set with sealing ring far from the side of the position of bearings retainer.

Further, the unilateral bearing is Wedge-type bearing.

Further, the annular body is copper sheathing or oiliness bearing.

Further, the position of bearings retainer is the split type structure of two sections of integration or left and right.

The utility model has the advantages that the copper sheathing or oiliness bearing of the unilateral bearing two sides of the utility model play the work of support and carrying With, the bearing capacity of unilateral bearing is effectively relieved, at the same time since unilateral bearing folder is located between two annular bodies, the ring Shape body also acts as the axis location effect to unilateral bearing；The position of bearings retainer makes annular body and unilateral bearing in work It is remained between the first inner edge and the second inner edge during making, plays the role of positioning it, the position of bearings retainer Structure can make five axises, and the structure can be simplified, is used to without multiple shaft shoulders are arranged on five axises to unilateral bearing and annular body Positioning, thereby reduces the manufacturing procedure of five axises；The position of bearings retainer is integrally partly wrapped in unilateral bearing and two annulars On the outside of body, make the lubricant grease on unilateral bearing and two annular bodies in the case where five axises do rotation and generate centrifugal force It is not easy to escape, has and kept for the lubrication duration, reduce the effect in plant maintenance period.

Detailed description of the invention

Attached drawing 1 is that the utility model just cuts open structural schematic diagram；

Attached drawing 2 is the partial enlargement diagram of attached drawing 1.

Specific embodiment

The utility model is further described with reference to the accompanying drawing.

A kind of moped five as shown in attached drawing 1 to 2 leads to one-direction bearing structure, including output gear 8 and five axises 11, it is sequentially connected five axis 11 in the gear hub 21 of the output gear 8 by unilateral bearing 29, the output gear 8 There can be the built-in motor on bicycle to drive, and then drive other transmission parts operating of bicycle by output gear 8, this The unilateral bearing 29 of embodiment is Wedge-type bearing；A pair of annular body 28 is further sleeved on five axis 11；It is described unidirectional The folder of bearing 29 is located between the two annular bodies 28, and the annular body 28 of the present embodiment is copper sheathing or oiliness bearing；Pass through list Drive connection is generated to bearing 29, when five axises 11 rotate in the forward direction, that is, the output gear 8 and five axises when normally riding 11 are driven by unilateral bearing 29, and when five axises 11 reversely rotate, which takes off output gear 8 and five axises 11 It opens, and then realizes that five axises 11 rotate and output gear 8 does not rotate；And the copper sheathing or oiliness bearing of 29 two sides of unilateral bearing play The effect of support and carrying, is effectively relieved the bearing capacity of unilateral bearing 29, at the same time since the folder of unilateral bearing 29 is located at two rings Between shape body 28, therefore the annular body 28 also acts as the axis location effect to unilateral bearing 29；

It further include position of bearings retainer 24；The position of bearings retainer 24 is tubular structure, and the position of bearings is protected 26 both ends of cylinder for holding frame 24 are respectively arranged with the first inner edge 25 and the second inner edge 27；The two annular bodies 28 and unilateral bearing 29 folders are between the first inner edge 25 and the second inner edge 27；26 outer wall of cylinder of the position of bearings retainer 24 with it is described The inner wall of gear hub 21 is interference fitted；First inner edge 25 and the second inner edge 27 with five axises, 11 clearance fit. The position of bearings retainer 24 makes annular body 28 and unilateral bearing 29 remain at 25 He of the first inner edge during the work time Between second inner edge 27, play the role of positioning it, which can be such that five axises, 11 structure becomes Simply, it is used to position unilateral bearing 29 and annular body 28 without multiple shaft shoulders are arranged on five axises 11, thereby reduces The manufacturing procedure of five axises 11；The position of bearings retainer 24 is whole to be partly wrapped in outside unilateral bearing 29 and two annular bodies 28 Side does lubricant grease on unilateral bearing 29 and two annular bodies 28 in the case that rotation generates centrifugal force also not in five axises Easily escape has and is kept for the lubrication duration, reduces the effect in plant maintenance period.

The inner wall of the gear hub 21 is provided with limit inner edge 19, and one end of the limit inner edge 19 presses described in contact One end of position of bearings retainer 24, axis location when which installs for the position of bearings retainer 24.

It further include the housing end plug 9 being fixedly mounted in the present embodiment, the inside integrated coaxial heart of the housing end plug 9 is set It is equipped with end cap cylinder 71, the inner wall of the end cap cylinder 71 and the outer wall of the gear hub 21 are connected by the rotation of deep groove ball bearing 18 It connects, increases outside in the wheel hub of output gear 8 by the stability of its output gear 8 all by the support of bearing.

The both ends of five axis 11 are respectively pedal crank mounting portion 1, can be installed on the two pedal crank mounting portions 1 Pedal crank can also be installed on the pedal crank foot-operated；The limit inner edge 19 is far from the position of bearings retainer 24 Side is set with sealing ring 22；The position of bearings retainer 24 is the split type structure of two sections of integration or left and right, in order to more sharp Position of bearings retainer 24 in the assembly of unilateral bearing 29 and two annular bodies 28, the present embodiment is the split type of two-part Package assembly.

The above is only the preferred embodiment of the utility model, it should be pointed out that: for the common skill of the art For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and Retouching also should be regarded as the protection scope of the utility model.

Claims

1. a kind of moped five leads to one-direction bearing structure, it is characterised in that: including output gear (8) and five axises (11), Pass through unilateral bearing (29) transmission connection five axis (11) in the gear hub (21) of the output gear (8)；Described five A pair of annular body (28) is further sleeved on axis (11)；The unilateral bearing (29) folder be located at the two annular bodies (28) it Between.

2. a kind of moped five according to claim 1 leads to one-direction bearing structure, it is characterised in that: further include bearing Position retainer (24)；The position of bearings retainer (24) is tubular structure, the cylinder of the position of bearings retainer (24) (26) both ends are respectively arranged with the first inner edge (25) and the second inner edge (27)；The two annular bodies (28) and unilateral bearing (29) Folder is between the first inner edge (25) and the second inner edge (27).

3. a kind of moped five according to claim 2 leads to one-direction bearing structure, it is characterised in that: the bearing position The inner wall of cylinder (26) outer wall and the gear hub (21) of setting retainer (24) is interference fitted；First inner edge (25) and Second inner edge (27) with five axis (11) clearance fit.

4. a kind of moped five according to claim 3 leads to one-direction bearing structure, it is characterised in that: the gear wheel The inner wall of hub (21) is provided with limit inner edge (19), and one end press of limit inner edge (19) contacts the position of bearings and keeps One end of frame (24).

5. a kind of moped five according to claim 1 leads to one-direction bearing structure, it is characterised in that: further include fixing The inside integrated coaxial heart of the housing end plug (9) of installation, the housing end plug (9) is provided with end cap cylinder (71), the end cap The inner wall of cylinder (71) and the outer wall of the gear hub (21) are rotatablely connected by deep groove ball bearing (18).

6. a kind of moped five according to claim 1 leads to one-direction bearing structure, it is characterised in that: five axis (11) both ends are respectively pedal crank mounting portion (1), can install pedal crank on the two pedal crank mounting portions (1).

7. a kind of moped five according to claim 4 leads to one-direction bearing structure, it is characterised in that: in the limit Edge (19) is set with sealing ring (22) far from the side of the position of bearings retainer (24).

8. a kind of moped five according to claim 1 leads to one-direction bearing structure, it is characterised in that: the one-way shaft Holding (29) is Wedge-type bearing.

9. a kind of moped five according to claim 1 leads to one-direction bearing structure, it is characterised in that: the annular sleeve Body (28) is copper sheathing or oiliness bearing.

10. a kind of moped five according to claim 2 leads to one-direction bearing structure, it is characterised in that: the bearing Position retainer (24) is the split type structure of two sections of integration or left and right.