CN212454568U

CN212454568U - Inner and outer rotors capable of damping and reducing noise and oil pump

Info

Publication number: CN212454568U
Application number: CN202022399534.XU
Authority: CN
Inventors: 邓鹏辉; 许仲秋; 刘光明; 佘笑梅
Original assignee: Hunan Oil Pump Co Ltd
Current assignee: Hunan Oil Pump Co Ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-02-02
Anticipated expiration: 2030-10-26

Abstract

The utility model provides an ability vibration/noise reduction's inside and outside rotor and adopted the oil pump of this kind of inside and outside rotor, the terminal surface of inside and outside rotor all is equipped with a plurality of through-holes, and it has damping sound absorbing material all to fill in every through-hole to it is fixed to bond through glue. Because the inner rotor and the outer rotor are filled with damping sound-absorbing materials, the transmission of vibration energy can be better reduced, and the propagation path of noise is blocked, so that the better effects of shock absorption and noise reduction are achieved.

Description

Inner and outer rotors capable of damping and reducing noise and oil pump

Technical Field

The utility model relates to an oil pump technical field, concretely relates to ability vibration/noise reduction's inside and outside rotor.

Background

With the increasing requirement of people on the riding comfort of automobiles, the noise reduction of the automobiles is a popular research field. The noise and vibration problem of the oil pump is one of the main noise sources of the engine, and the noise reduction problem of the oil pump must be considered in the noise reduction research of the engine. How to design an oil pump product with lower noise and lower vibration on the basis of the existing oil pump is crucial to noise reduction of an automobile engine. The traditional damping and noise reduction means are not limited to methods of sufficient structural rigidity, optimal assembly weight, optimized gear and rotor profile and the like.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an ability vibration/noise reduction's inside and outside rotor and oil pump.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides an inside and outside rotor of ability vibration/noise reduction, the terminal surface of inside and outside rotor all is equipped with a plurality of through-holes, all fills in every through-hole has the damping sound absorbing material to it is fixed to bond through glue.

Preferably, the inner rotor is provided with a through hole corresponding to the position of each outer tooth, and the outer rotor is provided with a through hole corresponding to the position of each inner tooth.

Preferably, the height of the damping and sound-absorbing material in each through hole is lower than the end surfaces of the inner and outer rotors.

The utility model discloses a technical scheme is about oil pump: the utility model provides an oil pump, includes the pump body, pump cover, install in the pump body the utility model provides an ability vibration/noise reduction's inside and outside rotor.

The utility model has the advantages that: because the inner rotor and the outer rotor are filled with damping sound-absorbing materials, the transmission of vibration energy can be better reduced, and the propagation path of noise is blocked, so that the better effects of shock absorption and noise reduction are achieved.

Drawings

Fig. 1 is a schematic structural view of an inner rotor and an outer rotor in an embodiment of the present invention;

FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;

the reference signs are:

1-inner rotor 2-outer rotor 3-damping sound-absorbing material.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

It should be noted that, in the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, in the present disclosure, unless explicitly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1

As shown in fig. 1 and 2, the inner rotor 1 is provided with a through hole corresponding to each outer tooth, the outer rotor 2 is provided with a through hole corresponding to each inner tooth, and each through hole is filled with a damping sound-absorbing material 3 and is bonded and fixed by glue; the height of the damping sound-absorbing material 3 in each through hole is lower than the end surfaces of the inner and outer rotors.

Example 2

An oil pump comprises a pump body and a pump cover, wherein the pump body is internally provided with an inner rotor and an outer rotor which can absorb shock and reduce noise in embodiment 1.

The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.

Some of the drawings and descriptions of the present invention have been simplified to facilitate the understanding of the improvements over the prior art by those skilled in the art, and some other elements have been omitted from this document for the sake of clarity, and it should be appreciated by those skilled in the art that such omitted elements may also constitute the subject matter of the present invention.

Claims

1. The utility model provides an inside and outside rotor that ability vibration/noise reduction, its characterized in that: the terminal surface of interior outer rotor all is equipped with a plurality of through-holes, all fills damping sound absorbing material (3) in every through-hole to it is fixed to bond through glue.

2. The inner and outer rotors capable of damping and reducing noise of claim 1, wherein: the position of the inner rotor (1) corresponding to each external tooth is provided with a through hole, and the position of the outer rotor (2) corresponding to each internal tooth is provided with a through hole.

3. The inner and outer rotors capable of damping and reducing noise of claim 1 or 2, wherein: the height of the damping sound-absorbing material (3) in each through hole is lower than the end surfaces of the inner rotor and the outer rotor.

4. The utility model provides an oil pump, includes pump body, pump cover, its characterized in that: the pump body is internally provided with an inner rotor and an outer rotor which are capable of absorbing shock and reducing noise according to any one of claims 1 to 3.