CN202091403U

CN202091403U - Small flywheel coupled to PU wheel

Info

Publication number: CN202091403U
Application number: CN2011201359333U
Authority: CN
Inventors: 庞明方
Original assignee: Taicang Chezhongbao Leisure Products Co Ltd
Current assignee: Taicang Chezhongbao Leisure Products Co Ltd
Priority date: 2011-05-03
Filing date: 2011-05-03
Publication date: 2011-12-28
Anticipated expiration: 2021-05-03

Abstract

A small flywheel coupled to a PU wheel includes a flywheel casing, a two-direction tooth member, a sleeve, rolling needles and bearings. The small flywheel coupled to a PU wheel is characterized in that one end of the two-direction tooth member is provided with a tooth shoulder with straight teeth at the circumference, one side of the center hole of the tooth shoulder is embedded with the bearing, the two-direction tooth member is sleeved by the sleeve, the sleeve is tightly contacted to the tooth shoulder, after the two-direction tooth member is sleeved by the sleeve, the tooth concave portions of the exposed two-direction teeth are smeared with butter, and are arranged with rolling needles, one side of the inner hole of the flywheel casing is also embedded with a bearing, the flywheel casing embedded with the bearing is sleeved at one end of the two-direction tooth member with rolling needles, and a small flywheel coupled to a PU wheel is produced.

Description

The small flywheel that cooperates the PU wheel

Technical field:

The utility model relates to a kind of flywheel, particularly a kind of small flywheel that cooperates PU.

Technical background:

Can see in the market, generally be the flywheel that cooperates ordinary bicycle.And, being difficult to seek suitable flywheel for PU wheel, the design people once formerly designed the small flywheel of a PU wheel, and (patent No. is: Z:2009-20073231X), but this design performance and stability are undesirable.

The model utility content:

The purpose of this utility model will provide a kind of being more suitable for to cooperate with the PU wheel, and performance is better, the small flywheel of the cooperation PU wheel that stability is stronger.The purpose of this utility model is to realize like this, the small flywheel that cooperates the PU wheel, comprise the flywheel hub, fall along tooth spare sleeve pipe, needle roller and bearing is characterized in that, fall along tooth spare one, the tooth shoulder that one circumference band straight-tooth is arranged, one side tooth shoulder mesopore also stud with a bearing, also be with a sleeve pipe along on the tooth spare falling, sleeve pipe is close to the tooth shoulder, falling falling along on the tooth of exposing after suitable tooth spare puts sleeve pipe, the place spreads butter with mark of mouth, and puts needle roller, one side of flywheel hub endoporus also studs with a bearing, to stud with the flywheel hub of bearing, be socketed in down along tooth spare and put of needle roller, just synthesized a small flywheel that can cooperate the PU wheel.

The beneficial effects of the utility model are: tooth shoulder of the present utility model is taken turns to cooperate with PU and is easy to, only need be pressed into the PU wheel and put the endoporus of bearing, with tooth shoulder endoporus and flywheel hub endoporus on one side on one side, each inlays a bearing, it is more sliding suitable to allow the PU hub get, and small flywheel is more durable.

Description of drawings

Fig. 1 is the utility model structural front view

Fig. 2 is the utility model structure side pseudosection

Fig. 3 is the utility model appearance figure

Among the figure: 1-flywheel hub, 2-fall along tooth spare, 3-sleeve pipe, 4-needle roller, 5-bearing, the suitable tooth spare 2 that wherein falls also comprises: 21-fall along tooth 22-tooth shoulder.

Embodiment:

According to Fig. 1, Fig. 1, the small flywheel of described cooperation PU wheel comprises flywheel hub 1, falls along tooth spare 2 sleeve pipe 3, needle roller 4 and bearing 5;

Described flywheel hub 1 is the periphery of sprocket teeth, and the centre is a tubulose, and the end in the [studs with described bearing 5;

Described along tooth spare 2, comprise down along tooth 21 and tooth shoulder 22, described along tooth 21 shapes such as milling cutter, the excircle that described tooth shoulder 22 is circles has tooth, described tooth shoulder 22 connects into described along tooth spare 2 with described suitable tooth 21 one, described is the metallurgical part of powder along tooth spare 2, and the described tooth of described suitable tooth spare 2 is takeed in the 22 circle holes, studs with a described bearing 5.

With described flywheel hub 1, described along tooth spare 2, described sleeve pipe 3, described needle roller 4 and two described bearings 5, composite assembly just can obtain the small flywheel of described cooperation PU wheel.

Claims

1. small flywheel that cooperates PU wheel, comprise flywheel casing, fall along tooth spare, sleeve pipe, needle roller and bearing is characterized in that, fall along tooth spare one, the tooth shoulder that one circumference band straight-tooth is arranged, one side tooth shoulder mesopore also stud with a bearing, also be with a sleeve pipe along on the tooth spare falling, sleeve pipe is close to the tooth shoulder, falling falling along on the tooth of exposing after suitable tooth spare puts sleeve pipe, the place spreads butter with mark of mouth, and puts needle roller, one side of flywheel hub endoporus also studs with a bearing, to stud with the flywheel hub of bearing, be socketed in down along tooth spare and put of needle roller, just synthesized a small flywheel that can cooperate the PU wheel.

2. the small flywheel of cooperation PU wheel according to claim 1, it is characterized in that: described flywheel hub is the periphery of sprocket teeth, and the centre is a tubulose, and the end in the [studs with described bearing.

3. the small flywheel of cooperation PU wheel according to claim 1, it is characterized in that: described along tooth spare, comprise down along tooth and tooth shoulder, described along odontoid such as milling cutter, it is the excircle band straight-tooth of a circle that described tooth is takeed on, and described tooth shoulder and described suitable tooth one connect into described along tooth spare, and described suitable tooth spare is a powder metallurgy part, in described the described tooth shoulder circle hole, stud with a described bearing along tooth spare.