CN201093049Y

CN201093049Y - Engine drive sprocket

Info

Publication number: CN201093049Y
Application number: CNU2007201248211U
Authority: CN
Inventors: 陈先发; 孔令康
Original assignee: Chongqing Jianshe Motorcycle Co Ltd
Current assignee: Chongqing Jianshe Motorcycle Co Ltd
Priority date: 2007-07-26
Filing date: 2007-07-26
Publication date: 2008-07-30
Anticipated expiration: 2017-07-26

Abstract

The utility model discloses a motor drive sprocket, which comprises a sprocket body. The utility model is characterized in that a buffer rubber jacket is arranged on the outer of the sprocket body, an organic wearing layer is coated on the outer periphery of the buffer rubber jacket, and the thickness of the organic wearing layer is 0.15-0.6 mm. Since the motor drive sprocket of the utility model is coated with one layer of buffer rubber jacket on outer of the sprocket, thereby excellent buffer function is played, impact vibration which is caused by hard contact between the drive sprocket and a chain is effectively buffered and lowered. The utility model effectively lowers noises which are produced between the drive sprocket and the chain when relative motion is carried on are effectively lowered, which leads drivers to drive comfortably.

Description

A kind of engine-driving sprocket wheel

Technical field

The utility model relates to a kind of power-transmitting part, particularly a kind of driving sprocket wheel of motor.

Background technique

In the power transmission field, commonly used is forms such as chain-driven, shaft drive and belt transmission, and chain-driven wherein is with the power output of chain with motor, passes on the driving sprocket wheel, drives driven sprocket and rotates.Advantages such as chain-driven is simple in structure because of it, velocity ratio is constant, manufacturing is easy to maintenance are widely used in the power transmission field.At motorcycle field, generally there are two positions to adopt chain-driven possibly, one is the timing sprocket (using chain transmission) of gas distribution system, another is the driven sprocket (using chain transmission) in the transmission device of back.In the prior art, the driving sprocket wheel of motorcycle engine generally all is to adopt the 45# steel to process, and chain also is a steel part, and motor is in operation process, owing to be that steel part contacts with steel part, produce bigger noise because of impact shock between driving sprocket wheel and the chain; Especially itself do not adopting oil lubrication or lubricant oil to exhaust or lubricant oil is contaminated and under the situations such as inefficacy, the vibration that produces between driving sprocket wheel and the chain is bigger, its noise is more serious, influences driver and passenger's normal driving.

Summary of the invention

The utility model between the driving sprocket wheel of prior art and the chain because of contacting firmly, impact shock is big and produce the deficiency of bigger noise, and a kind of driving sprocket wheel that can reduce noise, reduce impact shock is provided.

The technical solution of the utility model: a kind of engine-driving sprocket wheel, comprise sprocket body, it is characterized in that: the buffering adhesive cover is set outside sprocket body;

Further be characterised in that: the organic wearing layer of coating on the outer peripheral surface of described buffering gum cover;

The thickness of described organic wearing layer is 0.15mm to 0.6mm.

Engine-driving sprocket wheel of the present utility model with respect to prior art, has following characteristics:

1, owing to, plays good buffer function at sprocket wheel outsourcing one deck buffering gum cover; Effective buffering and reducing between driving sprocket wheel and the chain because of the hard impact shock that produces that contacts.

The noise that produces when 2, effectively reducing relative movement between driving sprocket wheel and the chain makes the comfortable driving of driver and passenger.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1 is the utility model driving sprocket wheel structural representation;

Fig. 2 be Fig. 1 along A-A to sectional view;

Fig. 3 is the working state schematic representation of driving sprocket wheel and chain.

Embodiment

In Fig. 1,2, the 1-sprocket body, 2-cushions gum cover, the organic wearing layer of 3-;

Driving sprocket wheel of the present utility model comprises sprocket body 1, and sprocket body 1 adopts the material of prior art to obtain with making processing method; After it machines, carry out conventional heat treatment, one deck buffering gum cover 2 is set outside sprocket body 1 at last, specifically will cushion gum cover 2 exactly and be coated on sprocket body 1 outside, the material of buffering gum cover 2 is rubber, plastics etc.In order to make it in the transferring power movement process, have good buffer function, the utility model is gone up organic wearing layer 3 that coating one layer thickness is about 0.15mm to 0.6mm at the rubber layer outer peripheral surface (surface that contacts with the chain inner plate) of buffering gum cover 2, strengthen its wear-resisting property, the material of organic wearing layer 3 is teflon, polyethylene etc., the high-molecular organic material with good abrasion resistance.

As shown in Figure 3,4-chain inner plate, 5-chain roller;

When driving sprocket wheel of the present utility model drives chain operation, chain inner plate 4 all the time with wrap in sprocket body 1 on buffering gum cover 2 contact, and chain inner plate 4 is to link to each other with the chain roller 5 of chain, therefore, when between chain roller 5 and the driving sprocket wheel impact shock being arranged, the buffering gum cover 2 that wraps on the sprocket body 1 just can play buffer function, thereby reduces vibration noise.

Claims

1. an engine-driving sprocket wheel comprises sprocket body (1), it is characterized in that: buffering adhesive cover (2) is set outside sprocket body (1).

2. engine-driving sprocket wheel according to claim 1 is characterized in that: coating organic wearing layer (3) on the outer peripheral surface of buffering gum cover (2).

3. engine-driving sprocket wheel according to claim 2 is characterized in that: the thickness of organic wearing layer (3) is 0.15mm to 0.6mm.