CN216382309U

CN216382309U - One-way transmission structure of shaft transmission rear shaft driving wheel

Info

Publication number: CN216382309U
Application number: CN202122677248.XU
Authority: CN
Inventors: 王运海
Original assignee: Chongqing Haile Machinery Co ltd
Current assignee: Chongqing Haile Machinery Co ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-04-26
Anticipated expiration: 2031-10-26

Abstract

The one-way transmission structure of the shaft transmission rear shaft driving wheel comprises a rear driving bevel gear, wherein at least one shell bearing is placed at the rear end of a tooth part and is installed in a shell inner hole. The rear driving wheel is provided with an inner hole, the inner hole is provided with a plurality of grooves, and the inner hole is provided with a left bearing and a right bearing. The base body passes through the bearing inner hole, and the shaft transmission connecting rod passes through the base body inner hole. The base body does not penetrate through the inner hole part of the bearing and is provided with grooves with two different shapes and a circumferential groove. The pawl is placed in a groove in the base body, a groove is formed in the middle of the pawl in the circumferential direction, an O-shaped spring is placed, and the pawl is fixed in the groove in the outer circle of the base body. One end of the O-shaped spring steel wire is bent and placed in another groove of the base body for fixing. So far, the purpose of unidirectional rotation of the shaft transmission connecting rod relative to the rear driving wheel is achieved.

Description

One-way transmission structure of shaft transmission rear shaft driving wheel

Technical Field

The utility model belongs to the field of bicycles, and particularly relates to a one-way transmission structure of a rear axle driving wheel of a shaft transmission bicycle.

Background

The shaft transmission has a long development history in the field of bicycles, is well known for full sealing, long service life, no maintenance, large transmission torque, high transmission efficiency and low noise, but is not widely popularized, and has the key that an effective one-way transmission structure is not available. In the existing shaft transmission one-way transmission structure, the force transmission of the one-way transmission mechanism can be transmitted to the rear wheel of the bicycle or can be transmitted to the rear wheel of the bicycle through a multi-stage mechanism; or the bicycle is completely in a sliding friction state to work, and the structure has the defects of large friction resistance, poor wear resistance, short service life and high noise, so that the resistance is large when the bicycle slides in the riding process, the bicycle is not smooth, and the riding experience is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provides a one-way transmission structure of a driving wheel of a rear shaft of a shaft transmission, which has the advantages of simple structure, small friction boosting force, long service life and low noise.

The purpose of the utility model is realized by the following technical scheme:

the utility model provides an one-way transmission structure of axle transmission rear axle action wheel, its structure includes the rear drive wheel, and the rear drive wheel is a bevel gear, and tooth portion rear end excircle is downthehole by fixed connection in the shell bearing, and this shell bearing excircle is by fixed connection in axle transmission casing hole, and the rear drive wheel has an hole, has a plurality of recesses to and the dead eye.

Further, the bearing is fixedly connected in the rear driving wheel bearing hole.

Furthermore, the excircle of the base body is provided with two grooves and a groove in the circumferential direction, and the base body is provided with an inner hole which is fixedly connected with the connecting rod and is arranged in the inner hole of the rear driving wheel.

Furthermore, a pawl is arranged in a groove on the excircle of the base body, a groove is arranged in the middle of the pawl,

furthermore, an O-shaped spring is placed in a groove in the middle of the pawl, one end of an O-shaped spring steel wire is bent and placed in another groove of the base body, the pawl is pressed by the O-shaped spring, and the pawl can rotate in the groove of the base body at a small angle.

Furthermore, the base body, the pawl, the O-shaped spring, the connecting rod and the bearing inner ring can rotate together towards one direction relative to the rear driving wheel and cannot rotate towards the other direction.

The utility model has the advantages that the one-way transmission structure of the shaft transmission rear shaft driving wheel is formed by the rear driving wheel, the bearing, the base body, the pawl and the O-shaped spring, and the utility model completely achieves the aims of small friction resistance, low noise, wear resistance, long service life, simple production and assembly and benefits the popularization, standardization and popularization of shaft transmission during the working process of shaft transmission.

Drawings

Fig. 1, 2 and 3 are sectional views of three structures of the one-way transmission structure of the shaft transmission rear shaft driving wheel of the utility model.

FIG. 4 is a schematic structural view of a pawl and an O-shaped spring of a one-way transmission structure of a driving wheel of a rear axle of the axle transmission of the utility model.

In fig. 1:

1. a housing bearing; 2. a rear driving wheel; 3. a bearing; 4. a substrate; 5. a connecting rod; 6. positioning rings; 7. a shaft transmission housing; 8. a bearing; 9. and (6) positioning rings.

In fig. 2:

1. a housing bearing; 2. a rear driving wheel; 3. a bearing; 4. a substrate; 5. a connecting rod; 6. positioning rings; 7. a shaft transmission housing; 8. And (6) positioning rings.

In fig. 3:

In fig. 4:

10. a pawl; 11. and an O-shaped spring.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to fig. 2.

Fig. 2 is a schematic view of a one-way transmission structure of a driving wheel of a rear axle driven by a shaft. In this embodiment, an axle transmission rear axle action wheel one-way transmission structure, including back action wheel 2, back action wheel 2 is a bevel gear, and tooth portion rear end excircle is by fixed connection at 1 hole of housing bearing, and this 1 excircle of housing bearing is by fixed connection at 7 holes of axle transmission casing. The rear driving wheel 2 is provided with an inner hole which is provided with a plurality of grooves, and one side of the inner hole close to the rear driving wheel 2 is provided with a bearing hole. The bearing 3 is placed in the bearing hole of the rear driving wheel 2, and the right bearing 3 is fixedly connected in the bearing hole of the rear driving wheel 2 by the positioning ring 6. At 4 excircles of base member, there are two kinds of recesses to and the slot of a circumferencial direction, in 4 holes of base member, by fixedly connected with axle drive connecting rod 5, in a recess of 4 excircles of base member, place pawl 10, there is a slot in the middle of the 10 circumferencial directions of pawl, place O type spring 11, in the one end of O type spring 11 steel wire, through bending, place in another kind of recess of base member 4 to push down pawl 10. The pawl 10 is able to rotate within the groove of the base 4 through a small angle.

When the bicycle pedal is stressed, the connecting rod 5 is driven by the middle shaft driving mechanism and is transmitted to the base body 4, the base body 4 props against the root part of the groove of the inner hole of the rear driving wheel 2 through the pawl 10 and is transmitted to the rear driving wheel 2, and the rear driving wheel 2 is transmitted to the rear driven wheel and then is transmitted to the rear wheel of the bicycle to drive the bicycle to walk. If the bicycle pedal stops, no pedal force is used for driving the rear wheel of the bicycle, and the rear wheel of the bicycle can move forwards. At the moment, the shaft drives the rear shaft driving wheel to drive the structure, so that the function of one-way transmission is achieved.

The utility model relates to a one-way transmission structure of a shaft transmission rear shaft driving wheel, which is suitable for all shaft transmissions including bicycles, electric power-assisted bicycles, tricycles and motorcycles.

Claims

1. The utility model provides a one-way transmission structure of axle transmission rear axle action wheel which characterized in that: including back action wheel, bearing, base member, pawl, O type spring, back action wheel is a bevel gear, and tooth portion rear end excircle is downthehole by fixed connection in the casing bearing, and back action wheel has an inner hole, and the inner hole has a plurality of recesses to and the dead eye, the bearing is by fixed connection in back action wheel dead eye, base member, excircle have two kinds of recesses to and a circumferencial direction's slot to there is an inner hole, the pawl is placed in a base member recess, has a slot in the middle of the pawl circumferencial direction, O type spring is bent in the one end of spring steel wire, places in another kind of recess of base member, and O type spring pushes down the pawl in the pawl slot, and the pawl can be in the base member recess small-angle rotation.

2. The one-way transmission structure of the shaft transmission rear shaft driving wheel according to claim 1, characterized in that: the rear driving wheel is a bevel gear, and a bearing hole is formed at one end close to an inner hole of the rear driving wheel.

3. The one-way transmission structure of the shaft transmission rear shaft driving wheel according to claim 1, characterized in that: the rear driving wheel is a bevel gear, and bearing holes are formed at two ends of an inner hole close to the rear driving wheel.

4. The one-way transmission structure of the shaft transmission rear shaft driving wheel according to claim 1 or 2, characterized in that: the bearing is fixedly connected to one end of an inner hole of the rear driving wheel, and the inner hole of the bearing is fixedly connected with the connecting rod.

5. The one-way transmission structure of the shaft transmission rear shaft driving wheel according to claim 1 or 3, characterized in that: the bearings are fixedly connected to two ends of an inner hole of the rear driving wheel, and the inner hole of each bearing is fixedly connected with the base body.

6. The one-way transmission structure of the shaft transmission rear shaft driving wheel according to claim 1 or 4, characterized in that: the base body is placed in the inner hole of the rear driving wheel, two grooves and a groove in the circumferential direction are formed in the outer circle of the base body, and the inner hole of the base body is fixedly connected to the connecting rod.

7. The one-way transmission structure of the shaft transmission rear shaft driving wheel according to claim 1 or 5, characterized in that: the base body is fixedly connected in the two inner hole bearing holes of the rear driving wheel, two grooves and a groove in the circumferential direction are arranged on the excircle of the base body, and the inner hole of the base body is fixedly connected on the connecting rod.

8. The one-way transmission structure of the shaft transmission rear shaft driving wheel according to claim 1, characterized in that: the pawl is placed in a groove in the excircle of the base body, a groove is formed in the middle of the pawl in the circumferential direction, and an O-shaped spring is placed in the groove.

9. The one-way transmission structure of the shaft transmission rear shaft driving wheel according to claim 1 or 8, characterized in that: the O-shaped spring is bent at one end of the spring steel wire and placed in another groove of the base body, the O-shaped spring presses the pawl in the pawl groove, and the pawl can rotate in the groove of the base body at a small angle.