CN220043160U

CN220043160U - Explosion-proof motor bearing structure

Info

Publication number: CN220043160U
Application number: CN202321296742.4U
Authority: CN
Inventors: 蔡伯璋; 蔡丹红
Original assignee: Shanghai Pinxing Explosion Proof Motor Co ltd
Current assignee: Shanghai Pinxing Explosion Proof Motor Co ltd
Priority date: 2023-05-25
Filing date: 2023-05-25
Publication date: 2023-11-17
Anticipated expiration: 2033-05-25

Abstract

The utility model discloses an explosion-proof motor bearing structure, which relates to the field of motors and comprises a bearing sleeve and a bearing cover, wherein a fan is fixedly connected to the bearing cover, a wind shield is arranged on the bearing cover, an air inlet is formed in one side, close to the fan, of the wind shield, a circulation space for air circulation is formed between the wind shield and the bearing cover, and a bearing is fixedly connected in the bearing sleeve. The motor bearing heat dissipation device has the effect of effectively dissipating heat of the motor bearing.

Description

Explosion-proof motor bearing structure

Technical Field

The utility model relates to the field of motors, in particular to an explosion-proof motor bearing structure.

Background

An electric motor is an electromagnetic device that converts or transmits electrical energy according to the law of electromagnetic induction.

In the use process of the motor, a large amount of friction heat is generated due to the fact that a rotor in the motor rotates at a high speed, a fan is arranged in the motor to drive air to flow, heat is dissipated to a motor winding, cooling of a bearing is generally achieved by means of adding heat dissipation ribs, the heat dissipation effect can be achieved, but the actual heat dissipation effect is poor, and the bearing of the motor is damaged due to the fact that the bearing is high in temperature for a long time.

Disclosure of Invention

In order to effectively radiate heat of a motor bearing, the utility model provides an explosion-proof motor bearing structure.

The utility model provides an explosion-proof motor bearing structure, which adopts the following technical scheme:

the utility model provides an explosion-proof motor bearing structure, includes bearing housing and bearing cap, fixedly connected with fan on the bearing cap, be provided with the deep bead on the bearing cap, the deep bead is close to one side of fan has seted up the air intake, the deep bead with be formed with the circulation space that is used for circulation of air between the bearing cap, fixedly connected with bearing in the bearing housing.

Through adopting above-mentioned technical scheme, the fan is connected with external power supply electricity, and when the bearing rotated, bearing friction heat generation transmitted for bearing housing and bearing cap, made whole temperature rise, the fan was also rotating at bearing pivoted in-process, was let in cold air from the air intake, under the blocking effect of deep bead, cold air was circulated along circulation space, carries out heat dissipation cooling to bearing cap and bearing housing effectively, dispels the heat to motor bearing effectively.

Preferably, the bearing cover is fixedly connected with a radiating pipe, one end of the radiating pipe is fixedly connected to the bearing cover, and the other end of the radiating pipe is fixedly connected to the wind shield.

Through adopting above-mentioned technical scheme, through the setting of cooling tube, increased the heat transfer in-process with cold air's area of contact effectively, be convenient for wholly dispel the heat the cooling.

Preferably, a plurality of radiating pipes are provided.

Through adopting above-mentioned technical scheme, through the setting of a plurality of cooling tubes, further increased with the area of contact of cold air, be convenient for wholly dispel the heat the cooling.

Preferably, the bearing cover is fixedly connected with an oil cup, the bearing sleeve is fixedly connected with an oil pipe, the oil pipe is communicated with the oil cup, and one side, far away from the oil cup, of the oil pipe is right opposite to the bearing.

Through adopting above-mentioned technical scheme, through the setting of oil cup and oil pipe, the bearing needs to refuel lubrication in the use, adds lubricating oil through the oil cup, and lubricating oil flows into oil pipe from the oil cup to flow out to bearing department along the flow tube, realized that the bearing is refueled lubricated.

Preferably, the bearing cover is also fixedly connected with an oil drain.

Through adopting above-mentioned technical scheme, through the setting of oil extractor, the waste oil after carrying out lubrication is discharged through the oil extractor, is convenient for in time discharge waste oil.

Preferably, a labyrinth ring is arranged at one end of the bearing, which is far away from the oil pipe.

Through adopting above-mentioned technical scheme, through the setting of labyrinth ring, can increase the dwell time of lubricating oil in bearing department effectively, the bearing make full use of lubricating oil of being convenient for.

Preferably, an oil-resistant rubber strip is fixedly connected to the bearing, and one end, far away from the bearing, of the oil-resistant rubber strip is fixedly and vertically connected to the bearing sleeve.

Through adopting above-mentioned technical scheme, through the setting of resistant oil rubber strip, realized the connection of bearing and bearing housing.

Preferably, the bearing comprises a deep groove ball bearing and a cylindrical roller bearing, the deep groove ball bearing is attached to the cylindrical roller bearing, and the cylindrical roller bearing is close to one side of the oil pipe.

Through adopting above-mentioned technical scheme, through deep groove ball bearing and the cylindrical roller bearing that the laminating set up, make the motor rotor who installs in deep groove ball bearing and cylindrical roller bearing fix a position through two bearings, increased motor rotor's straightness accuracy effectively to reduced motor rotor's radial runout when using effectively, motor rotor rotates, and the position of skew is little, and the vibration of motor during operation is little, and then has reduced noise and the friction of motor during operation.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the cooling air enters from the outside through the arrangement of the fan and the wind shield and flows along the outer walls of the bearing sleeve and the bearing cover under the limit action of the wind shield, so that the bearing sleeve and the bearing cover can be effectively cooled, and the cooling of the bearing is realized;

2. by means of the arrangement of the plurality of radiating pipes, the contact area between cold air and the whole body is effectively increased, and the whole body is convenient to cool and radiate;

3. through deep groove ball bearing and the cylindrical roller bearing that set up side by side, fix a position motor rotor through two bearings, increased motor rotor's straightness accuracy effectively, reduced motor rotor's radial runout when using simultaneously, noise and friction when having reduced the motor effectively and used.

Drawings

FIG. 1 is a schematic view of a semi-section of an embodiment of the present utility model, which is mainly embodied as an overall structure;

FIG. 2 is a schematic view of a drain structure according to an embodiment of the present utility model;

reference numerals: 1. a bearing sleeve; 2. a bearing cap; 3. a fan; 4. a wind deflector; 5. an air inlet; 6. a heat radiating pipe; 7. an oil cup; 8. an oil pipe; 9. an oil drain; 10. a labyrinth ring; 20. an oil-resistant rubber strip; 30. deep groove ball bearings; 40. cylindrical roller bearings.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-2.

The embodiment of the utility model discloses an explosion-proof motor bearing structure.

As shown in fig. 1, an explosion-proof motor bearing structure includes bearing housing 1 and bearing cap 2, there is fan 3 through bolted connection on the bearing cap 2, there is cooling tube 6 through bolted connection on the bearing cap 2, cooling tube 6 is provided with a plurality of, and cooling tube 6 keeps away from bearing cap 2's one end fixedly connected with deep bead 4, deep bead 4 lays along the bearing cap 2 outside, wind intake 5 has been seted up to one side that deep bead 4 is close to fan 3, be formed with the circulation space that is used for the circulation of air between deep bead 4 and the bearing cap 2, fan 3 is just to the circulation space in the orientation, during the use, start fan 3, fan 3 rotates, inhale external cold air, cold air flows along the circulation space, exchange heat with cooling tube 6, bearing cap 2, and along with the flow of cold air, the cold air that the heat transfer accomplished can flow out the circulation space, the heat exchange has been accomplished, heat dissipation is whole.

As shown in fig. 1 and 2, the oil cup 7 is fixedly connected to the bearing cover 2 through the bolt, the oil pipe 8 is fixedly clamped on the bearing sleeve 1, the oil pipe 8 is communicated with the oil cup 7, the oil resistant rubber strip 20 is fixedly connected to the bearing sleeve 1 through neoprene adhesive, the oil resistant rubber strip 20 is fixedly connected with the bearing through neoprene adhesive, the bearing comprises a deep groove ball bearing 30 and a cylindrical roller bearing 40, the deep groove ball bearing 30 is attached to the cylindrical roller bearing 40 and is arranged side by side, one end of the oil pipe 8, far away from the oil cup 7, is opposite to the cylindrical roller bearing 40, one end of the deep groove ball bearing 30, far away from the oil pipe 8, is provided with a labyrinth ring 10, the labyrinth ring 10 is slidably connected in the bearing sleeve 1, the oil pipe 9 is fixedly connected to the bearing cover 2 through the bolt, and is screwed with a plug on the bearing cover 2, in actual use, the deep groove ball bearing 30 and the cylindrical roller bearing 40 are all required to be added with lubricating oil, the user adds the lubricating oil through the oil cup 7, the lubricating oil enters the oil pipe 8 through the oil cup 7 and passes through the oil pipe 8 to the deep groove ball bearing 30 and the cylindrical roller bearing 40, the lubricating oil can flow down to the labyrinth ring 10 along with the labyrinth ring 10, the vibration of the rotor can flow down along with the labyrinth ring 10, the vibration of the rotor can be carried out along with the vibration of the labyrinth ring 10, the vibration of the vibration device is also carried out along with the vibration device 10, and the vibration device is caused by the vibration device is in the vibration device is a certain degree, and the vibration device is caused by the vibration device, and the vibration device is a vibration device.

The implementation principle of the bearing structure of the explosion-proof motor provided by the embodiment of the utility model is as follows: when put into practical use, start fan 3, the rotation of fan 3 is inhaled external cold air, and cold air lets in and exchanges heat in the space that flows through, and because the setting of deep bead 4, cold air can follow bearing cap 2 and remove one end distance, carries out abundant heat transfer, and the cold air discharge after accomplishing the heat transfer cools down to the bearing structure.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. An explosion-proof motor bearing structure which characterized in that: including bearing housing (1) and bearing cap (2), fixedly connected with fan (3) on bearing cap (2), be provided with deep bead (4) on bearing cap (2), deep bead (4) are close to air intake (5) have been seted up to one side of fan (3), deep bead (4) with be formed with the circulation space that is used for circulation of air between bearing cap (2), fixedly connected with bearing in bearing housing (1).

2. An explosion-proof motor bearing structure according to claim 1, wherein: the bearing cover (2) is fixedly connected with a radiating pipe (6), one end of the radiating pipe (6) is fixedly connected to the bearing cover (2), and the other end of the radiating pipe (6) is fixedly connected to the wind shield (4).

3. An explosion-proof motor bearing structure according to claim 2, wherein: the radiating pipes (6) are arranged in a plurality.

4. An explosion-proof motor bearing structure according to claim 1, wherein: fixedly connected with oil cup (7) on bearing cap (2), fixedly connected with oil pipe (8) on bearing housing (1), oil pipe (8) with oil cup (7) intercommunication, oil pipe (8) keep away from one side of oil cup (7) is just right the bearing.

5. An explosion-proof motor bearing structure according to claim 4, wherein: an oil drain (9) is fixedly connected to the bearing cover (2).

6. An explosion-proof motor bearing structure according to claim 4, wherein: one end of the bearing, which is far away from the oil pipe (8), is provided with a labyrinth ring (10).

7. An explosion-proof motor bearing structure according to claim 1, wherein: the oil-resistant rubber strip (20) is fixedly connected to the bearing, and one end, far away from the bearing, of the oil-resistant rubber strip (20) is fixedly and vertically connected to the bearing sleeve (1).

8. An explosion-proof motor bearing structure according to claim 4, wherein: the bearing comprises a deep groove ball bearing (30) and a cylindrical roller bearing (40), wherein the deep groove ball bearing (30) is attached to the cylindrical roller bearing (40), and the cylindrical roller bearing (40) is close to one side of the oil pipe (8).