CN209892715U

CN209892715U - Noise reduction bevel gear

Info

Publication number: CN209892715U
Application number: CN201920639710.7U
Authority: CN
Inventors: 顾伟; 杨帆
Original assignee: Nantong Leveling Macromolecule New Material Co Ltd
Current assignee: Nantong Leveling Macromolecule New Material Co Ltd
Priority date: 2019-05-07
Filing date: 2019-05-07
Publication date: 2020-01-03
Anticipated expiration: 2029-05-07

Abstract

The utility model discloses a noise reduction bevel gear, including metal insert and gear body, the inside of metal insert runs through and is provided with the shaft hole, the inside of gear body is provided with the mounting hole, the upper end of metal insert is pegged graft in the mounting hole of gear body, the top of gear body is provided with three sets of screw holes, the up end of metal insert is opened has three sets of fixed orificess, is provided with the internal thread on the internal surface of three sets of fixed orificess, three sets of the screw hole with three sets of the fixed orificess through flat angle screw fixed connection, the utility model has the advantages of reasonable design, the gear noise reduction effect is obvious, the gear possesses very high gear precision, because need not grind the tooth, the gear precision requirement is relatively lower; the cost is cheaper, the wear resistance of the special plastic is far higher than that of a metal gear, the vibration can be reduced, the service life is longer, and the metal insert of the gear is well fixed with the plastic body.

Description

Noise reduction bevel gear

Technical Field

The utility model relates to the field of textile technology, specifically a noise reduction bevel gear.

Background

On special sewing equipment, an umbrella gear is required for transmission, and a common metal gear is not only high in precision but also harsh and unacceptable; and a long time of gear grinding is required to slightly reduce noise, affecting production efficiency. The prior art selects a special mode of combining engineering plastics and metal firstly, but because the wall thickness ratio of the bevel gear is thicker and the thickness is not uniform, the requirement of the gear strength can not be met by adopting a mode of injection molding and hobbing.

Therefore, it is necessary to provide a noise reduction bevel gear to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an umbrella type gear of making an uproar falls to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an it falls umbrella type gear of making an uproar, includes metal insert and gear body, the inside of metal insert runs through and is provided with the shaft hole, the inside of gear body is provided with the mounting hole, peg graft in the mounting hole of gear body in the upper end of metal insert, the top of gear body is provided with three screw holes of group, the up end of metal insert is opened there are three fixed orificess of group, three groups be provided with the internal thread on the internal surface of fixed orificess, three groups screw hole and three groups through flat angle screw fixed connection between the fixed orificess.

Preferably, one side of the metal insert is provided with a bolt hole.

Preferably, the gear body is in the shape of an umbrella, and the gear body is a plastic gear.

Preferably, the upper end of the metal insert is provided with a boss, a limiting hole is formed above the mounting hole of the gear body, and the boss and the limiting hole are matched with each other and are inserted.

Compared with the prior art, the beneficial effects of the utility model are as follows: according to the noise reduction bevel gear, the bevel gear is formed by the insert made of powder metallurgy or the insert made of free-cutting steel and the gear made of special plastic or the material modified by the special plastic, the metal insert and the gear plastic body are fixedly connected through the screw, the noise reduction effect of the gear is obvious, the gear has high gear precision, and the requirement on the gear precision is relatively low because gear grinding is not needed; the cost is cheaper, the wear resistance of the special plastic is far higher than that of a metal gear, the vibration can be reduced, the service life is longer, and the metal insert of the gear is well fixed with the plastic body.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram of the explosion structure of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure B-B of the present invention;

fig. 4 is a schematic view of the structure of the section a-a of the present invention.

In the figure: 1 metal insert, 2 gear bodies, 3 flat angle screws, 4 mounting holes, 5 screw holes, 6 fixing holes, 7 shaft holes, 8 bolt holes, 9 bosses and 10 limiting holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-4, a noise reduction bevel gear comprises a metal insert 1 and a gear body 2, wherein a shaft hole 7 is formed in the metal insert 1 in a penetrating manner, a mounting hole 4 is formed in the gear body 2, the upper end of the metal insert 1 is inserted into the mounting hole 4 of the gear body 2, three sets of screw holes 5 are formed above the gear body 2, three sets of fixing holes 6 are formed in the upper end face of the metal insert 1, internal threads are formed in the inner surface of the three sets of fixing holes 6, and the three sets of screw holes 5 are fixedly connected with the three sets of fixing holes 6 through flat angle screws 3.

Specifically, one side of the metal insert 1 is provided with a plug pin hole 8.

Claims

1. The utility model provides a make an uproar bevel gear falls, includes metal insert (1) and gear body (2), its characterized in that: the inside of metal insert (1) runs through and is provided with shaft hole (7), the inside of gear body (2) is provided with mounting hole (4), peg graft in mounting hole (4) of gear body (2) in the upper end of metal insert (1), the top of gear body (2) is provided with three screw holes of group (5), the up end of metal insert (1) is opened has three fixed orificess of group (6), three groups be provided with the internal thread on the internal surface of fixed orifices (6), three groups screw hole (5) and three groups through flat angle screw (3) fixed connection between fixed orifices (6).

2. A noise reducing bevel gear as defined in claim 1, wherein: one side of the metal insert (1) is provided with a bolt hole (8).

3. A noise reducing bevel gear as defined in claim 1, wherein: the gear body (2) is in an umbrella shape, and the gear body (2) is a plastic gear.

4. A noise reducing bevel gear as defined in claim 1, wherein: the upper end of the metal insert (1) is provided with a boss (9), a limiting hole (10) is formed in the position, located above the mounting hole (4), of the gear body (2), and the boss (9) and the limiting hole (10) are matched and spliced with each other.