CN210780337U

CN210780337U - Insulating bearing sleeve for motor

Info

Publication number: CN210780337U
Application number: CN201921927541.3U
Authority: CN
Inventors: 吴家岐; 陈大梁
Original assignee: Wenzhou Longdian Insulating Material Co ltd
Current assignee: Wenzhou Longdian Insulating Material Co ltd
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-06-16
Anticipated expiration: 2029-11-11

Abstract

The utility model provides an insulating bearing housing for motor, insulating bearing housing is by outer interior concentric outer loop that has set gradually, insulating layer subassembly and inner ring, thereby creep distance has been increased through all setting up the recess on insulating layer subassembly's both ends, and the bottom surface of recess is the plane, rounding off between the side of recess and the plane of bottom surface, rounding off and the planar setting of bottom surface make difficult deposition in the recess, thereby set up the temperature measurement hole in making insulating bearing housing set up in the recess of recess, the condition that current switched on between the outer loop inner ring can not appear in other positions and set up the temperature measurement hole and take place.

Description

Insulating bearing sleeve for motor

Technical Field

The utility model particularly relates to a bearing housing technical field, concretely relates to insulating bearing housing for motor.

Background

The bearing sleeve is an important part in a motor product, and the design structure and the manufacturing process level of the bearing sleeve have great influence on the technical grade, the performance, the operation reliability, the service life, the energy consumption, the noise and the like of the motor product. The bearing sleeve for motor products in China is made of steel for a long time, has no insulativity, and cannot solve the problem that shaft current generated in the running process of a motor generates electric corrosion on a bearing assembled in an end cover, so that the smooth working surface of the bearing is corroded to be stained and uneven, the energy consumption of the running of the motor is increased, the noise is increased, the service life is shortened, and the bearing sleeve is in violation of energy-saving and environment-friendly policies of the country.

Disclosure of Invention

In order to solve the technical defect that prior art exists, the utility model provides an insulating bearing housing for motor.

The utility model discloses a technical solution be: the utility model provides an insulating bearing housing for motor, insulating bearing housing by outer within in proper order with one heart set up the outer loop, insulating layer subassembly and inner ring, insulating layer subassembly prevent that the electric current from flowing between inner ring and outer loop, the one end of insulating layer subassembly set up in insulating bearing housing's surface, the other end sets up in insulating bearing housing's side, the both ends of insulating layer subassembly on all be equipped with the recess that is used for increasing creepage distance.

A gap is formed between the outer ring and the inner ring, two ends of the gap are respectively located on the outer surface of the insulating bearing sleeve and the side surface of the insulating bearing sleeve, and the insulating layer assembly is arranged in the gap and is flush with two ends of the gap.

The bottom surface of the groove is a plane, and the side surface of the groove and the plane of the bottom surface are in smooth transition.

And a temperature measuring hole is arranged in the groove.

The inner ring and the outer ring are made of metal materials.

The insulating layer is made of thermosetting plastic.

The utility model has the advantages that: the utility model provides an insulating bearing housing for motor, insulating bearing housing has set gradually the outer loop with one heart within by outer, insulating layer subassembly and inner ring, thereby creep distance has been increased through all setting up the recess on insulating layer subassembly's both ends, and the bottom surface of recess is the plane, rounding off between the plane of the side of recess and bottom surface, rounding off and bottom surface planar setting makes difficult deposition in the recess, thereby the setting up of recess makes insulating bearing housing set up the temperature measurement hole in the recess, the condition that current switched on between the outer loop inner ring appears in the temperature measurement hole can not appear other positions and take place.

Drawings

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

Fig. 2 is a schematic view of the cross-sectional structure of the present invention.

Fig. 3 is an enlarged view of the structure at a position of the present invention.

Wherein 1-outer ring, 2-insulating layer component, 3-inner ring, and 21-groove.

Detailed Description

The present invention will be further described with reference to fig. 1, 2 and 3, which is an insulating bearing housing for a motor, wherein the insulating bearing housing is provided with an outer ring 1, an insulating layer assembly 2 and an inner ring 3 concentrically in sequence from the outside to the inside, and the inner ring 3 and the outer ring 1 are made of metal material. The insulating layer is made of thermosetting plastic. The insulating layer assembly 2 prevents current from flowing between the inner ring 3 and the outer ring 1, one end of the insulating layer assembly 2 is arranged on the outer surface of the insulating bearing sleeve, the other end of the insulating layer assembly 2 is arranged on the side surface of the insulating bearing sleeve, and grooves 21 for increasing creepage distance are formed in the two ends of the insulating layer assembly 2.

A gap is formed between the outer ring 1 and the inner ring 3, two ends of the gap are respectively positioned on the outer surface of the insulating bearing sleeve and the side surface of the insulating bearing sleeve, and the insulating layer assembly 2 is arranged in the gap and is flush with two ends of the gap.

The bottom surface of the groove 21 is a plane, and the side surface of the groove 21 and the plane of the bottom surface are in smooth transition, so that dust is not easy to accumulate in the groove due to the smooth transition and the arrangement of the plane of the bottom surface.

The groove 21 is internally provided with a temperature measuring hole, so that the insulating bearing sleeve is provided with the temperature measuring hole in the groove, and the condition that current conduction between the inner rings of the outer ring occurs when the temperature measuring holes are arranged at other positions can be avoided.

The skilled person should understand that: although the present invention has been described in accordance with the above embodiments, the inventive concept is not limited to this embodiment, and any modification of the inventive concept will be included in the scope of the patent claims.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an insulating bearing housing for motor, its characterized in that, insulating bearing housing by outer within in proper order with one heart be provided with outer ring (1), insulating layer subassembly (2) and inner ring (3), insulating layer subassembly (2) prevent that the electric current flows between inner ring (3) and outer loop (1), the one end of insulating layer subassembly (2) set up in insulating bearing housing's surface, the other end sets up in insulating bearing housing's side, the both ends of insulating layer subassembly (2) on all be equipped with recess (21) that are used for increasing creepage distance.

2. The insulating bearing sleeve for the motor as claimed in claim 1, wherein a gap is formed between the outer ring (1) and the inner ring (3), the two ends of the gap are respectively located on the outer surface of the insulating bearing sleeve and the side surface of the insulating bearing sleeve, and the insulating layer assembly (2) is arranged in the gap and is flush with the two ends of the gap.

3. The insulative bearing sleeve for the motor as claimed in claim 1, wherein the bottom surface of the groove (21) is a plane, and the lateral surface of the groove (21) and the plane of the bottom surface are smoothly transited.

4. An insulating bearing bush for a motor according to claim 1, characterized in that temperature measuring holes are provided in the recesses (21).

5. The insulating bearing sleeve for the motor as claimed in claim 1, wherein the inner ring (3) and the outer ring (1) are both made of metal.

6. The insulating bearing sleeve for the motor as claimed in claim 1, wherein the insulating layer is made of a thermosetting plastic material.