CN207069822U - Motor and the conductance exchange device for motor - Google Patents

Motor and the conductance exchange device for motor Download PDF

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Publication number
CN207069822U
CN207069822U CN201721097734.1U CN201721097734U CN207069822U CN 207069822 U CN207069822 U CN 207069822U CN 201721097734 U CN201721097734 U CN 201721097734U CN 207069822 U CN207069822 U CN 207069822U
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CN
China
Prior art keywords
rotating shaft
exchange device
motor
end cap
contact
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Active
Application number
CN201721097734.1U
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Chinese (zh)
Inventor
胡民军
彭三文
樊学敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Welling Motor Manufacturing Co Ltd
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Guangdong Welling Motor Manufacturing Co Ltd
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Application filed by Guangdong Welling Motor Manufacturing Co Ltd filed Critical Guangdong Welling Motor Manufacturing Co Ltd
Priority to CN201721097734.1U priority Critical patent/CN207069822U/en
Application granted granted Critical
Publication of CN207069822U publication Critical patent/CN207069822U/en
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Abstract

It the utility model is related to machine field, disclose a kind of motor and the conductance exchange device for motor, the conductance exchange device can be arranged between the end cap (21) of motor (20) and rotating shaft (22) so that the end cap (21) conducts with rotating shaft (22), the conductance exchange device includes the fixture (10) for being connected with the end cap (21) and the contact (12) for being made electrical contact with the rotating shaft (22), the contact (12) is fixedly connected on the fixture (10) by connector (11) and can be pressed in the rotating shaft (22).Conductance exchange device of the present utility model can conduct the Internal and external cycle of motor bearings, the electrical potential difference between bearing internal external circle be eliminated, so as to solve the problems, such as bearing because of galvanic corrosion and by damage ring.

Description

Motor and the conductance exchange device for motor
Technical field
Machine field is the utility model is related to, the conductance exchange device more particularly to a kind of motor and for motor.
Background technology
Bearing is the important component coordinated in motor with rotating shaft.But during motor frequency conversion operates, it is installed on and turns The inner ring of bearing on axle can not be sufficiently conductive due to the influence of Bearing inner oil film with outer ring, thus inner ring and outer ring it Between form electrical potential difference so that electric discharge is produced between the ball and Internal and external cycle in bearing, so as to cause bearing internal external circle and ball Galvanic corrosion, cause bearing damage.
It is, therefore, desirable to provide a kind of device that can conduct the inner ring of bearing and outer ring, with eliminate bearing inner race with Electrical potential difference between outer ring.
Utility model content
The purpose of this utility model is to provide a kind of motor and the conductance exchange device for motor regarding to the issue above, should Conductance exchange device can conduct the Internal and external cycle of motor bearings, the electrical potential difference between bearing internal external circle be eliminated, so as to solve axle The problem of holding galvanic corrosion damage ring.
To achieve these goals, the utility model provides a kind of conductance exchange device for motor, the conductance exchange device It can be arranged between the end cap of motor and rotating shaft so that the end cap conducts with rotating shaft, the conductance exchange device includes being used for The fixture and the contact for being made electrical contact with the rotating shaft being connected with the end cap, the contact are consolidated by connector Surely it is connected to the fixture and the rotating shaft can be pressed in.
Preferably, the fixture is formed to be installed on the lid of the end cap.
Preferably, the lid is bolted to connection in institute with the end cap for interference fit, or the lid State end cap.
Preferably, the connector is elastic component.
Preferably, the elastic component is formed as U-shaped.
Preferably, the contact is contact.
Preferably, the contact is formed as hemispherical.
Preferably, the connector electric resistance welding or the fixture is riveted on, and/or the contact is riveted on the company Fitting.
The utility model also provides a kind of motor, the motor include rotating shaft, be sheathed on described rotating shaft one end bearing and The end cap of the bearing is supported for positioning, the bearing includes what is contacted with the inner ring of the shaft contacts and with the end cap Outer ring, the motor also include the above-described conductance exchange device being arranged between the end cap and rotating shaft.
Preferably, the contact and the central contact of the end face of the rotating shaft.
The utility model makes end cap realize electricity with rotating shaft by setting conductance exchange device between the end cap of motor and rotating shaft Conducting, further such that the bearing outer ring that contact with end cap and being realized between the bearing inner race of shaft contacts conducts, so that The electrical potential difference between bearing inner race and outer ring is eliminated, avoids bearing galvanic corrosion from damaging.It is of the present utility model to conduct apparatus structure letter It is single, convenient disassembly, and motor need not be transformed.
Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is to be further understood for providing to of the present utility model, and a part for constitution instruction, and following Embodiment be used to explain the utility model together, but do not form to limitation of the present utility model.In the accompanying drawings:
Fig. 1 is a kind of sectional view of embodiment of conductance exchange device in the utility model;
Fig. 2 is the stereogram of conductance exchange device in Fig. 1;
Fig. 3 is a kind of structural representation of embodiment of motor in the utility model;
Fig. 4 is Fig. 3 partial enlarged drawing.
Description of reference numerals
The connector of 10 fixture 11
The motor of 12 contact 20
The rotating shaft of 21 end cap 22
The inner ring of 23 bearing 231
The rolling element of 232 outer ring 233
24 retainers
Embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein Described embodiment is merely to illustrate and explained the utility model, is not limited to the utility model.
In the utility model, in the case where not making opposite explanation, the noun of locality such as " inside and outside " that uses refer to relative to Profile of each part itself it is inside and outside.
The utility model provides a kind of conductance exchange device for motor, and the conductance exchange device can be arranged at motor 20 So that the end cap 21 conducts with rotating shaft 22 between end cap 21 and rotating shaft 22, the conductance exchange device includes being used for and the end The fixture 10 and the contact 12 for being made electrical contact with the rotating shaft 22, the contact 12 that lid 21 connects pass through connector 11 are fixedly connected on the fixture 10 and can be pressed in the rotating shaft 22.
By such scheme, conductance exchange device is set between the end cap 21 of motor 20 and rotating shaft 22, by making end cap 21 Realize and conduct with rotating shaft 22, further such that the bearing outer ring contacted with end cap 21 and the bearing inner race that is contacted with rotating shaft 22 it Between realize and conduct, so as to eliminate the electrical potential difference between bearing internal external circle, avoid bearing galvanic corrosion from damaging.And due to contact 12 It is pressed in rotating shaft 22, it can be ensured that in the rotation process of rotating shaft 22, contact 12 makes electrical contact with rotating shaft 22 all the time.In addition, this Conduct apparatus structure simple, low manufacture cost, the convenient disassembly of utility model, and motor need not be transformed.
It should be appreciated that in conductance exchange device of the present utility model, fixture 10, connector 11 and contact 12 are by leading Electric material is made.
In the utility model, fixture 10 can have arbitrary structures or shape, as long as making it be connected with end cap 21. And in order that the structure of conductance exchange device is more stable, make connector 11 and contact 12 that there is reliable support, and need not change Firm connection can be realized with end cap 21 by making motor, preferably, the fixture 10 is formed to be installed on the end cap 21 lid, as shown in Figures 2 and 3, fixture 10 can be covered in the center drilling of end cap 21.
In order to realize the firm connection of the lid and end cap 21, the lid can be that interference is matched somebody with somebody with the end cap 21 Close, the lid can also be made to be bolted to connection in the end cap 21.
In the utility model, fully contacted in order that contact 12 remains with rotating shaft 22, the connector 11 is preferred For elastic component.The elastic component can have arbitrary shape, such as can be the spring-like along the central axis extension of rotating shaft 22.This reality In new, preferably, as Figure 1-Figure 4, the elastic component is formed as U-shaped.So be not only convenient for fixture 10 and The connection of contact 12, and contact 12 can be pressed in rotating shaft 22, it is hardly damaged, service life length.
According to, to a kind of embodiment of contact 12, the contact 12 is preferably contact in the utility model.This is touched Point can be made up of metal materials such as copper.Wherein, the contact is preferably to form sphere-contact with the rotating shaft 22, described to avoid Torque is produced between contact and rotating shaft 22.Such as the contact can be formed as hemispherical.
In the utility model, any-mode can be passed through between fixture 10 and connector 11, connector 11 and contact 12 It is fastenedly connected, for example, by the electric resistance welding of connector 11 or being riveted on fixture 10, contact 12 is riveted on connector 11.
The utility model also provides a kind of motor, and the motor 20 includes rotating shaft 22, is sheathed on the axle of described one end of rotating shaft 22 Hold 23 and the end cap 21 of the bearing 23 is supported for positioning, the bearing 23 includes the inner ring contacted with the rotating shaft 22 231 and the outer ring 232 that is contacted with the end cap 21, the motor 20 also include being arranged between the end cap 21 and rotating shaft 22 Above-described conductance exchange device.
Bearing galvanic corrosion is due to inner ring 231 and the outer ring for the bearing 23 in motor operation course, being installed in rotating shaft 22 232 can not be sufficiently conductive due to the influence of the inside oil film of bearing 23, so that forming potential between inner ring 231 and outer ring 232 Difference so that produced between the rolling element 233 and Internal and external cycle in bearing 23 caused by electric discharge.The utility model by with bearing Conductance exchange device is set between the end cap 21 of 23 contact of outer ring 232 and the rotating shaft 22 contacted with the inner ring 231 of bearing 23, so as to Make the inner ring 231 of bearing 23 realize with outer ring 232 to conduct, eliminate the electrical potential difference between bearing internal external circle, to avoid bearing electric Deteriorate bad.
Wherein, as shown in Figure 3 and Figure 4, the bearing that motor 20 can also include being arranged between end cap 21 and bearing 23 is protected Hold frame 24.
Further, since the centre linear velocity very little of the end face of rotating shaft 22, therefore, contact described in the utility model 12 be preferably the central contact with the end face of rotating shaft 22, can so greatly reduce the abrasion of contact 12 and rotating shaft 22, is extended Its service life.
Preferred embodiment of the present utility model, still, the utility model and unlimited is described in detail above in association with accompanying drawing Detail in above-mentioned embodiment, can be to skill of the present utility model in range of the technology design of the present utility model Art scheme carries out a variety of simple variants, and these simple variants belong to the scope of protection of the utility model.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the utility model is to each The possible combination of kind no longer separately illustrates.
In addition, it can also be combined between a variety of embodiments of the present utility model, as long as it is not disobeyed Thought of the present utility model is carried on the back, it should equally be considered as content disclosed in the utility model.

Claims (10)

1. a kind of conductance exchange device for motor, it is characterised in that the conductance exchange device can be arranged at the end of motor (20) Cover between (21) and rotating shaft (22) so that the end cap (21) conducts with rotating shaft (22), the conductance exchange device including for The fixture (10) and the contact (12) for being made electrical contact with the rotating shaft (22) of end cap (21) connection, the contact Part (12) is fixedly connected on the fixture (10) by connector (11) and can be pressed in the rotating shaft (22).
2. conductance exchange device according to claim 1, it is characterised in that the fixture (10) is formed to be installed on The lid of the end cap (21).
3. conductance exchange device according to claim 2, it is characterised in that the lid is matched somebody with somebody with the end cap (21) for interference Close, or the lid is bolted to connection in the end cap (21).
4. conductance exchange device according to claim 1, it is characterised in that the connector (11) is elastic component.
5. conductance exchange device according to claim 4, it is characterised in that the elastic component is formed as U-shaped.
6. the conductance exchange device according to any one in claim 1-5, it is characterised in that the contact (12) is tactile Point.
7. conductance exchange device according to claim 6, it is characterised in that the contact is formed as hemispherical.
8. conductance exchange device according to claim 1, it is characterised in that connector (11) electric resistance welding is riveted on institute Fixture (10) is stated, and/or the contact (12) is riveted on the connector (11).
9. a kind of motor, the motor (20) includes rotating shaft (22), the bearing (23) for being sheathed on the rotating shaft (22) one end and used The end cap (21) of the bearing (23) is supported in positioning, the bearing (23) includes the inner ring contacted with the rotating shaft (22) (231) outer ring (232) and with the end cap (21) contacted, it is characterised in that the motor (20) is also described including being arranged at The conductance exchange device as described in any one in claim 1-8 between end cap (21) and rotating shaft (22).
10. motor according to claim 9, it is characterised in that the contact (12) and the end face of the rotating shaft (22) Central contact.
CN201721097734.1U 2017-08-29 2017-08-29 Motor and the conductance exchange device for motor Active CN207069822U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721097734.1U CN207069822U (en) 2017-08-29 2017-08-29 Motor and the conductance exchange device for motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721097734.1U CN207069822U (en) 2017-08-29 2017-08-29 Motor and the conductance exchange device for motor

Publications (1)

Publication Number Publication Date
CN207069822U true CN207069822U (en) 2018-03-02

Family

ID=61514431

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721097734.1U Active CN207069822U (en) 2017-08-29 2017-08-29 Motor and the conductance exchange device for motor

Country Status (1)

Country Link
CN (1) CN207069822U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107370299A (en) * 2017-08-29 2017-11-21 广东威灵电机制造有限公司 Motor and the conductance exchange device for motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107370299A (en) * 2017-08-29 2017-11-21 广东威灵电机制造有限公司 Motor and the conductance exchange device for motor

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