CN2243575Y

CN2243575Y - Noise eliminating plastic gear

Info

Publication number: CN2243575Y
Application number: CN 95246497
Authority: CN
Inventors: 姜宜川
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-11-23
Filing date: 1995-11-23
Publication date: 1996-12-25
Anticipated expiration: 2005-11-23

Abstract

The utility model relates to a noise eliminating plastic gear. In the noise eliminating plastic gear, plastic is shaped into a gear body; radial thin iron sheets which are uniformly arranged around an axle hole are inlaid in the gear body; moreover, the iron sheets are penetrated with pins so that the iron sheets are connected. The thin iron sheets and the pins can be selected according to the size and the use of a gear. The utility model has the advantages of reasonable structure, light weight, high precision low noise, long service life, etc.

Description

The noise reduction plastic gear

The utility model relates to a kind of mechanical drive gear, especially a kind of plastics driving gear can be widely used in textile manufacturing machine and other mechanically.

At present, textile manufacturing machine and other change gear that mechanically uses and driving gear adopt cast iron gear usually because of its requirement of strength, but this cast iron gear, produce bigger noise greatly because of wearing and tearing during use, this cast iron gear Heavy Weight, the energy consumption that transmission produced is big, and quick abrasion and working life are also short, need in time oily.

The purpose of this utility model is to provide a kind of reinforced noise reduction plastic gear made of plastic for the deficiency that overcomes above-mentioned existence.

The purpose of this utility model is finished by following technical solution, with engineering plastics injection moulding or extrusion modling after glass fibre strengthens is gear mass, in the gear mass of this moulding, radially be embedded with thin iron plate, have at least two pins axially to be distributed on around the axis hole and the company's of wearing thin iron plate.

The utility model radially is embedded with two thin iron plates in gear mass, this thin iron plate is provided with and the strong corresponding to groove of groove of gear axis hole, selects for use three pins that two thin iron plates are worn and connects together.

Description of drawings is as follows:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is that the side of Fig. 1 is shown structural representation.

Below will the utility model is further introduced by accompanying drawing: adopting import engineering plastics polypropylene be gear mass 1 with injection moulding or extrusion modling after glass fibre strengthens, in gear mass 1, radially be embedded with a slice thin iron plate 2, this thin iron plate 2 is provided with and axis hole keyway 3 corresponding to grooves 4, select three pins 5 axially to be distributed on around the axis hole and wear to connect and state thin iron plate 2, intensity with reinforced plastic gear mass 1, penetrate in the keyway 3 when connecting axle key during use, under being coupled to each other of thin iron plate 2 and pin 5, the plastics intensity of gear mass 1 is strengthened, particularly strengthen the torsion of axis central part branch.

Other embodiment of the present utility model can be that two of employings or three thin iron plates 2 are settled along the gear axis hole successively, described pin 5 also can be that two or four are axial uniform and with above-mentioned thin iron plate 2 companies of wearing, and the selection of above thin iron plate and pin is with situations such as gear size and purposes and decide.

The utility model has not only reduced weight owing to adopt reinforced plastic to make gear mass, has improved the precision of product, and noise reduces greatly, and wearing and tearing reduce, long service life, and cost of production and former casting toe joint are near.

Claims

1, a kind of noise reduction plastic gear is characterized in that radially being embedded with thin iron plate (2) in the gear mass (1), has at least two pins (5) axially to be distributed on around the axis hole and the company's of wearing thin iron plate (2).

2, noise reduction plastic gear as claimed in claim 1, it is characterized in that radially being embedded with in the described gear mass (1) these thin iron plates of two thin iron plates (2) (2) and be provided with and the corresponding to groove of gear axis hole keyway (3) (4), select for use three pins (5) that two thin iron plates (2) are worn and connect together.