CN213243708U

CN213243708U - Protective structure for automobile generator rotating shaft bearing

Info

Publication number: CN213243708U
Application number: CN202021809131.1U
Authority: CN
Inventors: 杨义友; 武苗苗; 王珏
Original assignee: Wuhu Xingshen Auto Parts Co ltd
Current assignee: Wuhu Xingshen Auto Parts Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-05-18
Anticipated expiration: 2030-08-26

Abstract

The utility model relates to the field of generators, in particular to a protective structure for a rotating shaft bearing of an automobile generator, which comprises a protective ring, wherein the protective ring comprises a ring body, and a cross-connecting through hole is arranged on the ring body; the protective ring is sleeved on the rotor shaft, and the side face of the protective ring is attached to the outer side of the bearing. The utility model discloses a protective structure for a rotating shaft bearing of an automobile generator; through establish the guard ring at the rotor shaft upper cover, inside the tiny foreign matter of reduction that can be fine gets into the bearing, be favorable to prolonging bearing life.

Description

Protective structure for automobile generator rotating shaft bearing

Technical Field

The utility model relates to a generator field is a protective structure that automobile power generation machine pivot bearing used particularly.

Background

At present, a rotor bearing of a generator is generally not provided with protection or sealed by a plastic ring, the traditional plastic ring is used for sealing the bearing, and a gap is reserved between the protection mode and a rotor shaft, so that fine foreign matters (fine particles generated by abrasion of a collecting ring and a carbon brush, external dust and the like) can enter the bearing, the lubrication in the bearing is damaged, and the service life of the bearing is shortened.

Therefore, there is a need for a shield device that can prevent or reduce the entry of foreign matter into the interior of the bearing, while avoiding the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide one kind and can reduce or avoid the foreign matter to get into the protective structure in the bearing along the rotor shaft.

In order to realize the purpose, the utility model discloses a technical scheme be:

a protective structure for a rotating shaft bearing of an automobile generator comprises a protective ring, wherein the protective ring comprises a ring body, and a through hole is arranged on the ring body in a penetrating manner; the protective ring is sleeved on the rotor shaft, and the side face of the protective ring is attached to the outer side of the bearing.

The ring body comprises a base plate, a connecting plate is arranged on the outer edge of the base plate, and the connecting plate and the base plate are distributed in a staggered mode.

The connecting plate is connected with the base plate through the transition plate.

The edge of the through hole is provided with a sleeve ring which is sleeved on the rotor shaft; the sleeve ring is in interference fit with the rotor shaft.

One side of the cross-connecting through hole, which is close to the bearing, is provided with a transition ring groove.

The sleeving ring and the ring body are of an integrated structure; the joint of the sleeve ring and the ring body adopts circular arc surface transition.

The utility model has the advantages that:

the utility model discloses a protective structure for a rotating shaft bearing of an automobile generator; through establish the guard ring at the rotor shaft upper cover, inside the tiny foreign matter of reduction that can be fine gets into the bearing, be favorable to prolonging bearing life.

Drawings

The contents of the various figures of the specification and the labels in the figures are briefly described as follows:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an assembly view of the present invention.

The labels in the above figures are:

1. a ring body 2, a through hole 3 and a sleeve ring.

Detailed Description

The following description of the preferred embodiments of the present invention will be made in further detail with reference to the accompanying drawings

A protection structure for a rotating shaft bearing of an automobile generator comprises a protection ring, wherein the protection ring comprises a ring body 1, and a through hole 2 is arranged on the ring body 1 in a penetrating manner; the protective ring is sleeved on the rotor shaft, and the side surface of the protective ring is attached to the outer side of the bearing; the utility model discloses a protective structure for a rotating shaft bearing of an automobile generator; the protective ring is sleeved on the rotor shaft, so that fine foreign matters can be well reduced from entering the bearing, and the service life of the bearing is prolonged; in the utility model, the side face of the protective ring is jointed with the outer side of the bearing 1-1, the jointing mode can be selected according to the requirement, and the jointing is also equivalent to the extruding jointing of the protective ring and the outer side of the bearing 1-1; and the interference between the relative motion of the protective ring and the bearing is prevented.

Preferably, the ring body 1 of the present invention includes a base plate 11, a connecting plate 12 is disposed on an outer edge of the base plate 11, and the connecting plate 12 and the base plate 11 are distributed in a staggered manner; here, the base plate 11 plays a basic protection role, the connecting plate 12 is used for increasing the size of the protective ring, and meanwhile, in order to avoid the influence of the connecting plate 12 close to the bearing on the normal rotation of the bearing, the problem of interference between parts is reduced because the connecting plate 12 and the base plate 11 are distributed in a staggered manner in the utility model, in addition, the connecting plate 12 and the base plate 11 are distributed in a staggered manner, so that when the rotor shaft rotates at a high speed, fine foreign matters can be quickly discharged through a gap between the connecting plate 12 and the bearing; meanwhile, in order to ensure the connection between the connecting plate 12 and the base plate 11, the connecting plate 12 is connected with the base plate 11 through a transition plate 13; and the transition plate 13 is obliquely arranged, so that the base plate 11 and the connecting plate 12 have a gradual change process, and the problem that a large gap is formed between the protective ring and the bearing when the base plate 11 and the connecting plate 12 are connected through a straight plate is avoided.

Preferably, in the utility model, a sleeve ring 3 is arranged at the edge of the through hole 2, and the sleeve ring 3 is sleeved on the rotor shaft; the tight type that guard ring and rotor shaft are connected can be guaranteed in the setting of cover collar 3, simultaneously cover collar 3 and rotor shaft interference fit have increased the degree of difficulty that the guard ring axial breaks away from the rotor shaft like this, are favorable to guaranteeing whole generator normal operating.

Preferably, a transition ring groove is arranged on one side, close to the bearing, of the middle cross-connecting through hole 2; the arrangement of the transition ring groove is that the opening on one side of the cross-over through hole 2 is added, and the arrangement facilitates the assembly between the protective ring and the rotor shaft.

Preferably, in the present invention, the sleeve ring 3 and the ring body 1 are an integral structure; the split type description is only for clarity, the protective ring of the utility model is of an integrated structure, is convenient to produce, has low cost and practical production significance, and in addition, the joint of the sleeve ring 3 and the ring body 1 of the utility model adopts arc surface transition; the stress concentration can be avoided, and meanwhile, the arc surface transition is adopted, so that the hiding of dirt at the connecting part of the socket ring 3 and the ring body 1 can be reduced.

Obviously the specific implementation of the present invention is not limited by the above-mentioned manner, and various insubstantial improvements made by the method concept and technical solution of the present invention are all within the protection scope of the present invention.

Claims

1. The protective structure for the rotating shaft bearing of the automobile generator is characterized by comprising a protective ring, wherein the protective ring comprises a ring body, and a through hole is arranged on the ring body in a penetrating manner; the protective ring is sleeved on the rotor shaft, and the side face of the protective ring is attached to the outer side of the bearing.

2. The protection structure for the rotating shaft bearing of the automobile generator as claimed in claim 1, wherein the ring body comprises a base plate, a connecting plate is arranged at an outer edge of the base plate, and the connecting plate and the base plate are arranged in a staggered manner.

3. The protective structure for the rotating shaft bearing of the automobile generator as claimed in claim 2, wherein the connecting plate is connected with the base plate through a transition plate.

4. The protection structure for the rotating shaft bearing of the automobile generator as claimed in claim 1, wherein a sleeve ring is provided at the edge of the through hole, and the sleeve ring is sleeved on the rotor shaft; the sleeve ring is in interference fit with the rotor shaft.

5. The protection structure for the rotating shaft bearing of the automobile generator as claimed in claim 1, wherein the through hole has a transition ring groove on a side close to the bearing.

6. The protective structure for the rotating shaft bearing of the automobile generator as claimed in claim 4, wherein the socket ring and the ring body are of an integral structure; the joint of the sleeve ring and the ring body adopts circular arc surface transition.