CN210629242U

CN210629242U - Motor capable of reducing friction force of rotating shaft

Info

Publication number: CN210629242U
Application number: CN201921796759.XU
Authority: CN
Inventors: 戴清; 谢小平; 郑勇
Original assignee: Guangdong Kaihong Electric Co Ltd
Current assignee: Guangdong Kaihong Electric Co Ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-05-26
Anticipated expiration: 2029-10-24

Abstract

The utility model relates to a motor design technical field specifically is a can reduce motor of axis of rotation frictional force, including motor casing, electric rotor and motor shaft, electric rotor installs in motor shaft, and electric rotor corresponds with motor casing, motor casing all has the motor end cover through second set screw fixed mounting in both ends about, and the motor end cover is covered through first set screw fixed mounting by closing cap and cooperation. The beneficial effects are that: the device can utilize outside lubricating oil circulation equipment to carry out forced circulation change to the lubricating oil in the motor end cover to effectual reduction inside oil temperature also can strengthen the mobility of lubricating oil simultaneously and make every department in the motor end cover all can obtain good lubrication, and can effectual reduction because the problem that the lubricating effect that the lubricating oil that causes inadequately brings because of reasons such as long-time oil leak, volatilize descends, consequently can effectively reduce the frictional force that the motor shaft bore and improve the running accuracy.

Description

Motor capable of reducing friction force of rotating shaft

Technical Field

The utility model relates to a motor design technical field specifically is a can reduce motor of axis of rotation frictional force.

Background

The motor is a power output device driven by electric power, and is widely applied to various transmission devices, because the motor depends on a rotating shaft for power output, and the rotating shaft is generally supported by a bearing, friction force can be generated between the rotating shaft and the bearing, if the friction force between the rotating shaft and the bearing is too large, serious heating can be generated, the rotating shaft is seriously abraded and deformed, and the working performance is influenced. And the main influence on the friction performance between the bearing and the rotating shaft is the lubricating performance, so that the friction force of the rotating shaft can be effectively reduced by improving the lubricating condition.

The problem can be effectively solved if the novel motor capable of providing better lubricating performance is invented, and therefore the motor capable of reducing the friction force of the rotating shaft is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can reduce motor of axis of rotation frictional force to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a motor capable of reducing friction force of a rotating shaft comprises a motor shell, a motor rotor and a motor rotating shaft, wherein the motor rotor is arranged on the motor rotating shaft and corresponds to the motor shell, motor end covers are fixedly arranged at the left end and the right end of the motor shell through second fixing screws, and the motor end covers are fixedly arranged through a sealing cover and a matching cover through first fixing screws;

an inner bearing is arranged between the sealing cover and the matching cover, a bearing inner ring of the inner bearing is fixed with the motor rotating shaft, a bearing outer ring of the inner bearing is fixed with the motor end cover, two rings of bearing rollers are arranged between the bearing inner ring and the bearing outer ring, an oil inlet hole is formed in the bearing outer ring at the position corresponding to the middle of the two rings of bearing rollers, and a main flow channel is formed in the sealing cover at the position corresponding to the outer side of the oil inlet hole;

the bearing roller bearing is characterized in that lateral runners are arranged on the outer sides of the sealing cover and the matching cover corresponding to the bearing rollers, the main runner and the lateral runners are communicated through transverse runners, an oil inlet and an oil outlet which are communicated with the main runner are integrally formed on the outer sides of the sealing cover, the oil inlet and the oil outlet are communicated with external lubricating oil circulation supply equipment, and transverse partition plates used for separating the main runner and the lateral runners are integrally formed on the positions, corresponding to the positions between the oil inlet and the oil outlet, of the sealing cover and the matching cover.

Preferably, the bearing outer ring is integrally formed with at least six oil inlets arranged in a circumferential array, and the oil inlets are round holes or kidney-shaped holes.

Preferably, at least six pairs of transverse flow channels are symmetrically arranged in the sealing cover and the matching cover in a circumferential manner, and spring one-way valves are respectively arranged in the oil inlet and the oil outlet.

Preferably, the motor shell, the motor end cover, the closing cover and the matching cover are sealed through corresponding rubber rings, and the bearing rollers are cylindrical rollers.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a motor can utilize outside lubricating oil circulating equipment to carry out forced circulation to change to the lubricating oil in the motor end cover, thereby effectual reduction inside oil temperature, the mobility that also can strengthen lubricating oil simultaneously makes the inside homoenergetic everywhere of motor end cover obtain good lubrication, and can effectual reduction owing to long-time oil leak, the problem that the not enough lubricated effect that brings of lubricating oil that reasons such as volatilize descends, adopt the air gap in the active circulation lubrication also can discharge the inner bearing effectively simultaneously, thereby the vibration phenomenon of effectual reduction inner bearing in the motion process, consequently, can reduce the frictional force that the motor shaft bore effectively and improve the running precision.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the structure of the present invention;

fig. 3 is a schematic view of the internal structure of the closure cap of the present invention.

In the figure: the structure comprises a motor shell 1, a motor end cover 2, a sealing cover 201, a matching cover 202, an oil inlet 3, an oil outlet 4, a first fixing screw 5, a motor rotating shaft 6, a second fixing screw 7, an inner bearing 8, a bearing inner ring 801, a bearing roller 802, a bearing outer ring 803, a motor rotor 9, an oil inlet 10, a lateral flow channel 11, a transverse flow channel 12, a main flow channel 13 and a diaphragm plate 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the technical scheme in the utility model, all other embodiments that ordinary skilled person in the art obtained under the prerequisite of not making the creative work all belong to the scope of the utility model protection.

Referring to fig. 1 to 3, the present invention provides a technical solution: a motor capable of reducing friction force of a rotating shaft comprises a motor shell 1, a motor rotor 9 and a motor rotating shaft 6, wherein the motor rotor 9 is installed on the motor rotating shaft 6, the motor rotor 9 corresponds to the motor shell 1, motor end covers 2 are fixedly installed at the left end and the right end of the motor shell 1 through second fixing screws 7, and the motor end covers 2 are fixedly installed through a sealing cover 201 and a matching cover 202 through first fixing screws 5;

an inner bearing 8 is arranged between the sealing cover 201 and the matching cover 202, a bearing inner ring 801 of the inner bearing 8 is fixed with the motor rotating shaft 6, a bearing outer ring 803 of the inner bearing 8 is fixed with the motor end cover 2, two rings of bearing rollers 802 are arranged between the bearing inner ring 801 and the bearing outer ring 803, the bearing outer ring 803 is provided with an oil inlet 10 corresponding to the middle of the two rings of bearing rollers 802, and the sealing cover 201 is provided with a main runner 13 corresponding to the outer side of the oil inlet 10;

the sealing cover 201 and the matching cover 202 are provided with lateral runners 11 at the outer sides corresponding to the bearing rollers 802, the main runner 13 is communicated with the lateral runners 11 through a transverse runner 12, an oil inlet 3 and an oil outlet 4 which are communicated with the main runner 13 are integrally formed at the outer side of the sealing cover 201, the oil inlet 3 and the oil outlet 4 are both communicated with external lubricating oil circulation supply equipment, and transverse partition plates 14 for separating the main runner 13 from the lateral runners 11 are integrally formed at the positions corresponding to the positions between the oil inlet 3 and the oil outlet 4 on the sealing cover 201 and the matching cover 202;

at least six oil inlets 10 arranged in a circumferential array are integrally formed in the bearing outer ring 803, the oil inlets 10 are round holes or kidney-shaped holes, at least six pairs of transverse flow passages 12 are symmetrically arranged in the sealing cover 201 and the matching cover 202 in a circumferential manner, spring check valves are installed in the oil inlet 3 and the oil outlet 4, the motor shell 1 and the motor end cover 2, the sealing cover 201 and the matching cover 202 are sealed through corresponding rubber rings, and the bearing roller 802 is a cylindrical roller.

The working principle is as follows: when the device is used, the lubricating oil in the motor end cover 2 can be forcibly circulated and replaced by using external lubricating oil circulating equipment, so that the internal oil temperature is effectively reduced, meanwhile, the fluidity of the lubricating oil can be enhanced, all parts in the motor end cover 2 can be well lubricated, the problem of reduction of the lubricating effect caused by insufficient lubricating oil due to long-time oil leakage, volatilization and the like can be effectively reduced, meanwhile, the air gap in the inner bearing 8 can be effectively discharged by adopting active circulating lubrication, the vibration phenomenon of the inner bearing 8 in the motion process is effectively reduced, and the friction force borne by the motor rotating shaft 6 can be effectively reduced, and the operation precision is improved. The specific lubrication process is as follows: firstly, lubricating oil enters a main flow passage 13 from an oil inlet 3, then enters the middle position of two rings of bearing rollers 802 of an inner bearing 8 from an oil inlet 10, simultaneously enters a lateral flow passage 11 from a transverse flow passage 12, and lubricates the outer side of the bearing rollers 802 and a bearing inner ring 801 through the lateral flow passage 11, because the position between the oil inlet 3 and an oil outlet 4 is isolated by a transverse partition plate 14, the lubricating oil flows from the oil inlet 3 to the oil outlet 4 along the circumferential direction of the bearing through the main flow passage 13, the lateral flow passage 11 and the installation position of the bearing rollers 802 of the inner bearing 8, so that the circulation of the lubricating oil is completed, and the lubricating oil discharged from the oil outlet 4 is cooled and filtered by external equipment and then flows into the motor end cover 2 from the oil inlet 3. The motor is suitable for high-speed rotation occasions with high requirements on the friction performance of the motor rotating shaft 6, and has high practical value.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a can reduce motor of axis of rotation frictional force, includes motor casing (1), electric motor rotor (9) and motor shaft (6), electric motor rotor (9) are installed on motor shaft (6), and electric motor rotor (9) correspond its characterized in that with motor casing (1): the left end and the right end of the motor shell (1) are fixedly provided with motor end covers (2) through second fixing screws (7), and the motor end covers (2) are fixedly arranged through a sealing cover (201) and a matching cover (202) through first fixing screws (5);

an inner bearing (8) is arranged between the sealing cover (201) and the matching cover (202), a bearing inner ring (801) of the inner bearing (8) is fixed with the motor rotating shaft (6), a bearing outer ring (803) of the inner bearing (8) is fixed with the motor end cover (2), two rings of bearing rollers (802) are arranged between the bearing inner ring (801) and the bearing outer ring (803), the bearing outer ring (803) is provided with an oil inlet hole (10) in the middle of the two corresponding rings of bearing rollers (802), and the sealing cover (201) is provided with a main runner (13) in the outer side of the corresponding oil inlet hole (10);

the bearing roller bearing is characterized in that a lateral flow channel (11) is formed in the outer side of the sealing cover (201) and the matching cover (202) corresponding to the bearing roller (802), the main flow channel (13) is communicated with the lateral flow channel (11) through a transverse flow channel (12), an oil inlet (3) and an oil outlet (4) which are communicated with the main flow channel (13) are integrally formed in the outer side of the sealing cover (201), the oil inlet (3) and the oil outlet (4) are communicated with external lubricating oil circulation supply equipment, and transverse partition plates (14) used for separating the main flow channel (13) and the lateral flow channel (11) are integrally formed in positions, corresponding to the positions between the oil inlet (3) and the oil outlet (4), of the sealing cover (201) and the matching cover (202).

2. A motor for reducing friction of a rotating shaft according to claim 1, wherein: at least six oil inlets (10) arranged in a circumferential array are integrally formed in the bearing outer ring (803), and the oil inlets (10) are round holes or waist-shaped holes.

3. A motor for reducing friction of a rotating shaft according to claim 1, wherein: at least six pairs of transverse flow channels (12) are circumferentially and symmetrically arranged in the sealing cover (201) and the matching cover (202), and spring one-way valves are respectively arranged in the oil inlet (3) and the oil outlet (4).

4. A motor for reducing friction of a rotating shaft according to claim 1, wherein: the motor shell (1) and the motor end cover (2), the closing cover (201) and the matching cover (202) are sealed through corresponding rubber rings, and the bearing roller (802) is a cylindrical roller.