CN212935640U - Bearing bush type motor - Google Patents

Bearing bush type motor Download PDF

Info

Publication number
CN212935640U
CN212935640U CN202022230746.5U CN202022230746U CN212935640U CN 212935640 U CN212935640 U CN 212935640U CN 202022230746 U CN202022230746 U CN 202022230746U CN 212935640 U CN212935640 U CN 212935640U
Authority
CN
China
Prior art keywords
motor
receiving box
bearing bush
bearing
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202022230746.5U
Other languages
Chinese (zh)
Inventor
杨波明
杨斌
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.)
Inner Mongolia Yitai Chemical Co ltd
Original Assignee
Inner Mongolia Yitai Chemical Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inner Mongolia Yitai Chemical Co ltd filed Critical Inner Mongolia Yitai Chemical Co ltd
Priority to CN202022230746.5U priority Critical patent/CN212935640U/en
Application granted granted Critical
Publication of CN212935640U publication Critical patent/CN212935640U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Motor Or Generator Frames (AREA)

Abstract

The utility model provides a bearing bush formula motor, including cooling fan (5) that are arranged in the motor inner chamber and bearing bush (3) of department, still include induced duct (6), the one end and the motor inner chamber intercommunication of induced duct, the other end communicates with the inner chamber of bearing bush. The utility model provides a bearing bush formula motor can effectively avoid the lubricating oil of bearing room to leak to motor winding to help improving the security of motor, increase of service life.

Description

Bearing bush type motor
Technical Field
The utility model relates to the technical field of electric machines, especially, relate to a bearing bush formula motor.
Background
The large-scale bearing bush type motor is mainly applied to large-scale equipment (such as a boiler high-pressure feed water pump), and a mode of combining a built-in cooling fan with water cooling is mostly adopted to cool the motor and a winding, but the following problems exist in the actual operation:
a. the built-in cooling fan rotates in the closed space to cause the negative pressure in the motor winding cavity to rise, under the action of the negative pressure, lubricating oil in the bearing chamber can leak to the motor winding and is mostly sprayed into the motor winding in an oil mist mode, and the leaked lubricating oil causes the aging of the motor winding to be accelerated, and poor insulation and even short circuit are caused.
b. A large amount of oil mist leaks into the winding cavity of the motor, so that the amount of lubricating oil of the bearing bush is reduced, the temperature of the bearing bush is increased or the bearing bush is burnt, and the operation of equipment is seriously influenced.
c. The aging and poor insulation of the motor winding lead to the shortening of the service life of the motor.
In summary, how to avoid the leakage of the lubricant in the bearing chamber to the motor winding becomes a technical problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a bearing bush formula motor, this bearing bush formula motor can effectively avoid the lubricating oil of bearing room to leak to motor winding to help improving the security of motor, increase of service life.
In order to achieve the above object, the utility model provides a following technical scheme:
the bearing bush type motor comprises a cooling fan positioned in an inner cavity of the motor, a shaft seal positioned at a bearing bush and an air guiding pipe, wherein one end of the air guiding pipe is communicated with the inner cavity of the motor, and the other end of the air guiding pipe is communicated with the inner cavity of the shaft seal.
Optionally, in the above-mentioned bearing-shoe motor, the motor further includes an air-receiving box having an opening, the air-receiving box is fixed on the stator core support, and the opening is aligned with a gap seam on the circumferential surface of the stator core, and the other side of the air-receiving box opposite to the opening is communicated with one end of the induced draft tube close to the motor cavity.
Optionally, in the above-described shoe motor, the wind-receiving box has a cone shape.
Optionally, in the above-described shoe motor, the wind-receiving boxes are plural in number and are uniformly distributed around the axis of the stator core.
Alternatively, in the above-described shoe motor, the opening faces in the rotational direction of the motor shaft.
Optionally, in the above-mentioned tile motor, the induced duct is a metal hose.
Optionally, in the above-described shoe motor, the induced duct is screwed to the wind-receiving box.
According to the technical scheme, the utility model provides an among the axle bush formula motor, the one end and the motor inner chamber intercommunication of induced duct, the other end and the inner chamber intercommunication of bearing seal, consequently, the inner chamber of bearing seal is linked together through induced duct and motor inner chamber, and like this, when the cooling fan of motor inner chamber is rotatory, the inner chamber of the relative bearing seal of motor inner chamber just can not form the negative pressure, has not had the negative pressure effect, just can effectively avoid the lubricating oil of bearing room to leak to motor winding, and then can solve bearing bush temperature rising that lubricating oil leakage brought, a series of problems such as motor winding is ageing, from this can see, the utility model provides an axle bush formula motor helps improving the security of motor, increase of service life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a bearing bush type motor provided by an embodiment of the present invention.
Labeled as:
1. a motor shaft; 2. bearing bushes; 3. shaft sealing; 4. a stator core; 5. a cooling fan; 6. an induced draft pipe; 7. and a wind receiving box.
Detailed Description
For the sake of understanding, the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, the embodiment of the present invention provides a bearing bush type motor, which comprises a shaft seal 3, a cooling fan 5 and an induced duct 6, wherein, the cooling fan 5 is located in the inner cavity of the motor, the shaft seal 3 is located at the bearing bush 2, one end of the induced duct 6 is communicated with the inner cavity of the motor, and the other end is communicated with the inner cavity of the shaft seal 3.
Because the inner chamber of bearing seal 3 is linked together through induced duct 6 and motor cavity, so, when 5 rotatory in the motor inner chamber cooling fan, the relative bearing seal 3's of motor cavity inner chamber can not form the negative pressure, has not had the negative pressure effect, just can effectively avoid the lubricating oil of bearing room to leak to motor winding, and then can solve a series of problems such as axle bush temperature rising, motor winding ageing that lubricating oil leakage brought, from this, the utility model provides a bearing bush formula motor helps improving the security of motor, increase of service life.
In order to better guide the air in the motor cavity to the cavity of the shaft seal 3, in this embodiment, the bush-type motor further includes an air receiving box 7 having an opening, as shown in fig. 1, the air receiving box 7 is fixed on the stator core support, the opening of the air receiving box 7 is aligned with the gap seam on the circumferential surface of the stator core 4, and the other side of the air receiving box 7 opposite to the opening is communicated with one end of the induced duct 6 close to the motor cavity. In a specific practical application, the wind-receiving box 7 may be cone-shaped and aligned with the gap of the stator core 4 in a trumpet shape.
It should be noted that the stator core 4 with the gap is often found in a large-sized shoe motor, the wind-receiving boxes 7 are generally provided in plural because the size of the stator core 4 is large, and the wind-receiving boxes 7 are preferably arranged in a uniform manner around the axis of the stator core 4.
During the rotation of the motor shaft 1, the air coming out of the gap of the stator core 4 flows in a direction deviated to the motor shaft 1, so that the opening of the air receiving box 7 can be faced to the rotation direction of the motor shaft 1 when the air receiving box is installed, and the air can enter the air receiving box more easily.
In specific practical application, the induced air pipe 6 can be a metal hose, the induced air pipe 6 can be in threaded connection with the air receiving box 7, and the air receiving box 7 can be fixed on the stator core support in a welding mode.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. The bearing bush type motor comprises a cooling fan (5) located in an inner cavity of the motor and a shaft seal (3) located at a bearing bush, and is characterized by further comprising an air guiding pipe (6), wherein one end of the air guiding pipe (6) is communicated with the inner cavity of the motor, and the other end of the air guiding pipe is communicated with the inner cavity of the shaft seal (3).
2. A bush-type electric motor according to claim 1, further comprising an air receiving box (7) having an opening, wherein the air receiving box (7) is fixed on the stator core support, the opening is aligned with a gap seam on the circumferential surface of the stator core (4), and the other side of the air receiving box (7) opposite to the opening is communicated with one end of the induced draft tube (6) close to the inner cavity of the motor.
3. A bearing-type electric motor according to claim 2, characterized in that said wind-receiving box (7) is cone-shaped.
4. A bushing-type electric machine according to claim 2, characterized in that the wind-receiving box (7) is plural in number and evenly distributed around the axis of the stator core (4).
5. A bushing-type motor according to claim 2, characterized in that the opening faces in the direction of rotation of the motor shaft (1).
6. A bushing-type electric machine according to any of claims 2-5, characterized in that the induced draft tube (6) is a metal hose.
7. A bearing-type electric motor according to claim 6, characterized in that the induced draft tube (6) is in threaded connection with the wind receiving box (7).
CN202022230746.5U 2020-10-09 2020-10-09 Bearing bush type motor Active CN212935640U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022230746.5U CN212935640U (en) 2020-10-09 2020-10-09 Bearing bush type motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022230746.5U CN212935640U (en) 2020-10-09 2020-10-09 Bearing bush type motor

Publications (1)

Publication Number Publication Date
CN212935640U true CN212935640U (en) 2021-04-09

Family

ID=75310907

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022230746.5U Active CN212935640U (en) 2020-10-09 2020-10-09 Bearing bush type motor

Country Status (1)

Country Link
CN (1) CN212935640U (en)

Similar Documents

Publication Publication Date Title
WO2021196405A1 (en) Air cooling structure of outer rotor electric roller
CN110932475B (en) Oil-cooled motor
CN109525068B (en) Cooling structure for balancing air pressure in machine base
JP2022041828A (en) Motor shaft
JP6024233B2 (en) Turbine generator
CN112421858A (en) New energy automobile and driving motor thereof
CN212935640U (en) Bearing bush type motor
CN113315298A (en) Air-cooling and water-cooling combined cooling motor
US11802561B1 (en) Cantilever vertical screw vacuum pump
CN110943566A (en) Motor and have its car
CN107086743B (en) Oil-lubricated main cooling fan motor of high-temperature gas cooled reactor nuclear power plant
CN110868019B (en) Air-cooled outer rotor permanent magnet direct-drive synchronous belt transmission roller motor
CN107612224B (en) Circulation cooling type explosion-proof motor
CN110311511B (en) Diversion end ring of motor, motor stator, motor and household appliance
CN106917874A (en) Gap can adjust oil catch and oil catch method automatically
CN210686176U (en) Bearing sealing device of vertical water turbine generator set
CN114640214B (en) Cooling system suitable for exciter
CN204597704U (en) High-efficiency energy-saving motor
CN205779694U (en) A kind of household electrical appliance rolling rotor compressor
CN204794571U (en) High -effect energy -saving motor
CN221354022U (en) Rotor support assembly
CN215990395U (en) Vertical motor end cover with air guide device
CN217508455U (en) High-speed motor heat abstractor
CN221633493U (en) Be suitable for axial ventilation cooling's aerogenerator stator frame structure
CN217883045U (en) Direct drive motor of integrated oil gas way distributor

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant