CN218124455U

CN218124455U - Bearing insulation structure

Info

Publication number: CN218124455U
Application number: CN202221723729.8U
Authority: CN
Inventors: 郭福荣; 边杭祥
Original assignee: Zhejiang Yuanli Motor Co ltd
Current assignee: Zhejiang Yuanli Motor Co ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-12-23
Anticipated expiration: 2032-07-05

Abstract

The utility model discloses a bearing insulation structure, which comprises a bearing chamber, a bearing and an end cover which are arranged on the bearing chamber, and a ferrule, wherein a mounting groove is arranged along the circumference of the bearing chamber and on the periphery of the bearing, the ferrule and the end cover are arranged in the mounting groove, and insulation setting is respectively arranged between the ferrule and the bearing chamber and between the end cover and the bearing chamber; this application is through seting up the mounting groove along bearing room circumference, and lasso and end cover are installed in this mounting groove, between lasso and the bearing room, for insulating the setting between end cover and the bearing room to with insulating between end cover and the bearing room, lasso and the bearing room, avoided forming the return circuit between end cover, lasso, bearing room and the bearing, thereby avoided the production of axle current.

Description

Bearing insulation structure

Technical Field

The utility model relates to the technical field of electric machines, concretely relates to bearing insulation system.

Background

When the motor runs, potential difference, namely shaft voltage, can be generated between two ends of the rotating shaft or between the bearings; if the two ends of the rotating shaft form a loop through the motor base and the like, shaft voltage forms shaft current, and the shaft current has a large influence on a motor bearing.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a can prevent to produce bearing insulation system of axle current.

The utility model adopts the technical proposal that:

the utility model provides a bearing insulation system, includes the bearing room and installs bearing and end cover on the bearing room, still includes the lasso, follows bearing room circumference, just be located the bearing periphery and seted up the mounting groove, the lasso with the end cover is installed in the mounting groove, the lasso with between the bearing room the end cover with be insulating setting between the bearing room.

Furthermore, a weftless tape is fixedly arranged between the ferrule and the bearing chamber and on the side wall of the mounting groove.

Further, a first insulating flat gasket is arranged between the ferrule and the bearing chamber and positioned at the bottom of the mounting groove.

Further, the end cover is fixedly installed in the installation groove through a bolt, and an insulation pipe is sleeved between the end cover and the bolt.

Further, a second insulating flat gasket is arranged between the end cover and the bearing chamber and positioned at the bottom of the mounting groove.

Further, a third insulating flat gasket is arranged between the end cover and the bolt head.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic view of a bearing insulation structure provided in an embodiment of the present application;

fig. 2 is a partial schematic view of a bearing insulation structure according to an embodiment of the present application.

The bearing comprises a bearing chamber 1, a weftless tape 2, a ferrule 3, a first insulating flat pad 4, a bolt 5, an end cover 6, a second insulating flat pad 7, a third insulating flat pad 8 and an insulating sleeve 9.

Detailed Description

Here, it is to be noted that the functions, methods, and the like related to the present invention are only conventional adaptive applications of the prior art. Therefore, the present invention is an improvement of the prior art, which substantially lies in the connection relationship between hardware, not in the functions and methods themselves, that is, the present invention relates to a few functions and methods, but does not include the improvements proposed in the functions and methods themselves. The present invention is described for better illustration of the function and method for better understanding of the present invention.

Embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Referring to fig. 1 and 2, the bearing insulation structure of the present application includes a bearing chamber 1, and a bearing and an end cover 6 mounted on the bearing chamber 1, and further includes a ferrule 3, an installation groove is opened along the circumference of the bearing chamber 1 and located at the periphery of the bearing, the ferrule 3 and the end cover 6 are mounted in the installation groove, and the ferrule 3 and the bearing chamber 1 and the end cover 6 and the bearing chamber 1 are all arranged in an insulation manner.

This application is through seting up the mounting groove along 1 circumference of bearing room, and lasso 3 and end cover 6 are installed in this mounting groove, between lasso 3 and the bearing room 1, for insulating the setting between end cover 6 and the bearing room 1, thereby with end cover 6 and bearing room 1, insulate between lasso 3 and the bearing room 1, avoided end cover 6, lasso 3, form the return circuit between bearing room 1 and the bearing, thereby avoided the production of axle current.

Specifically, the ferrule 3 is sleeved on the inner side of the mounting groove, and a weftless tape 2 is fixedly arranged between the ferrule 3 and the bearing chamber 1 and on the side wall of the mounting groove; one end of the weftless tape 2 extends to the bottom of the mounting groove to insulate between the ferrule 3 and the side wall of the mounting groove.

And a first insulation flat gasket 4 is arranged between the ferrule 3 and the bearing chamber 1 and at the bottom of the mounting groove so as to insulate the ferrule 3 from the bottom of the mounting groove.

The end cover 6 is fixedly arranged on the outer side of the mounting groove through a bolt 5, and one side of the end cover 6 abuts against the outer side of the ferrule 3; an insulating tube is sleeved between the end cover 6 and the bolt 5, one end of the insulating tube extends to the bottom of the mounting groove, the other end of the insulating tube extends to the head position of the bolt 5, and insulating treatment is performed between the end cover 6 and the side wall of the bolt 5.

And a second insulating flat gasket 7 is arranged between the end cover 6 and the bearing chamber 1 and positioned at the bottom of the mounting groove so as to perform insulating treatment between the end cover 6 and the bottom of the mounting groove.

And a third insulating flat gasket 8 is arranged between the end cover 6 and the head of the bolt so as to insulate the end cover 6 and the head of the bolt 5.

Through the weftless tape 2, the insulating sleeve 9, the first insulating flat gasket 4, the second insulating flat gasket 7 and the third insulating flat gasket 8, insulativity between the end cover 6 and the bolt 5, between the end cover 6 and the bearing chamber 1 and between the ferrule 3 and the bearing chamber 1 is realized, and a loop is prevented from being formed between the end cover 6 and the bearing, so that generation of shaft current is avoided, and the safety and the service life of the motor are improved.

In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral combinations thereof; may be an electrical connection; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, system, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, systems, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a bearing insulation system, includes the bearing room and installs bearing and end cover on the bearing room, its characterized in that still includes the lasso, follows bearing room circumference, and be located the bearing periphery and seted up the mounting groove, the lasso with the end cover is installed in the mounting groove, the lasso with between the bearing room the end cover with be insulating setting between the bearing room.

2. The bearing insulation structure according to claim 1, wherein a weftless tape is fixedly provided between the ferrule and the bearing chamber and on a side wall of the mounting groove.

3. The bearing insulation structure according to claim 2, wherein a first insulation flat pad is provided between the ring and the bearing chamber at the bottom of the mounting groove.

4. The bearing insulation structure according to claim 1, wherein the end cap is fixedly installed in the installation groove by a bolt, and an insulation tube is sleeved between the end cap and the bolt.

5. The bearing insulation structure of claim 4 wherein a second insulating flat pad is provided between the end cap and the bearing housing at the bottom of the mounting groove.

6. The bearing insulation of claim 5 wherein a third insulating flat pad is provided between the end cap and the bolt head.