CN216774450U - Combined bidirectional axial force bearing motor - Google Patents
Combined bidirectional axial force bearing motor Download PDFInfo
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- CN216774450U CN216774450U CN202220340074.XU CN202220340074U CN216774450U CN 216774450 U CN216774450 U CN 216774450U CN 202220340074 U CN202220340074 U CN 202220340074U CN 216774450 U CN216774450 U CN 216774450U
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Abstract
The utility model relates to a modular two-way axial force bears motor, which belongs to the field of motors and comprises a motor shell, a motor shaft, a stator and a rotor, the motor shaft is rotationally connected with the motor shell, one end of the motor shaft extends out of the motor shell, the stator is arranged in the motor shell, the rotor is connected with the position of the motor shaft corresponding to the stator, a first plane thrust bearing is arranged on the motor shaft, a fixed ring of the first plane thrust bearing is connected with the position close to the extending end of the motor shaft in the motor shell, a movable ring of the first plane thrust bearing is sleeved on the motor shaft and rotates along with the motor shaft, and one side of the first plane thrust bearing, which is far away from the extending end of the motor shaft, is abutted against the rotor; a second plane thrust bearing used for bearing the axial force of the motor shaft from the extending end to the inner direction of the motor shell is arranged in the motor shell; a plurality of deep groove ball bearings used for bearing the radial force of the motor shaft are arranged in the motor shell. The condition that the deep groove ball bearing of motor easily takes place the damage under the axial force effect is improved in this application.
Description
Technical Field
The application relates to the field of motors, in particular to a combined bidirectional axial force bearing motor.
Background
With the development of modern industry, the motor has become an indispensable part in electromechanical equipment, and in the field of aviation and underwater equipment, the motor is often used as power equipment for driving a propeller to rotate, and at the moment, the motor needs to bear axial reaction force in the process of propelling the equipment by the propeller besides the traditional radial force. The common motor mainly comprises a motor shell, a motor shaft, a stator, a rotor, an electric brush, a deep groove ball bearing and other parts.
Aiming at the related technologies, the deep groove ball bearing has good bearing capacity on radial force, but has poor bearing capacity on axial force, and the deep groove ball bearing applied to the motor of underwater propulsion equipment is easy to wear and lose efficacy under the action of the axial force of the motor shaft, so that serious problems of shaking of the motor shaft, sweeping of a rotor and the like are caused.
SUMMERY OF THE UTILITY MODEL
In order to improve the condition that the deep groove ball bearing of motor easily takes place the damage under the axial force effect, this application provides a modular two-way axial force bears motor.
The application provides a modular two-way axial force bears motor adopts following technical scheme:
a combined bidirectional axial force bearing motor comprises a motor shell, a motor shaft, a stator and a rotor, wherein the motor shaft is rotationally connected to the motor shell, one end of the motor shaft extends out of the motor shell, the stator is arranged in the motor shell, the rotor is connected to the position, corresponding to the stator, of the motor shaft, a first plane thrust bearing is arranged on the motor shaft, a fixed ring of the first plane thrust bearing is connected to the motor shell, a movable ring of the first plane thrust bearing is sleeved on the motor shaft and rotates along with the motor shaft, and one side, away from the extending end of the motor shaft, of the first plane thrust bearing is abutted to the rotor; a second plane thrust bearing used for bearing the axial force of the motor shaft from the extending end to the inner direction of the motor shell is arranged in the motor shell; a plurality of deep groove ball bearings used for bearing the radial force of the motor shaft are arranged in the motor shell.
By adopting the scheme, when the motor shaft is subjected to axial force in the operation process of the motor, the first plane thrust bearing bears the axial force of the motor shaft from the end cover to the extending end, and the second plane thrust bearing bears the axial force of the motor shaft from the extending end to the end cover. The first plane thrust bearing and the second plane thrust bearing conduct the axial force of the motor shaft to the motor shell, the influence of the axial force of the motor shaft on the deep groove ball bearing is reduced, the working condition of the deep groove ball bearing is improved, the service life of the deep groove ball bearing is prolonged, the condition of running vibration of the motor is reduced, and the service life of the whole motor is prolonged. Meanwhile, compared with the common scheme of using a conical roller bearing, the scheme of the first plane thrust bearing, the second plane thrust bearing and the deep groove ball bearing of the motor which work in a matched mode is smaller in the combined design volume of the plane thrust bearing and the deep groove ball bearing under the condition of the same performance, and the motor is favorably reduced in volume and improved in reliability.
Preferably, motor housing keeps away from the end that stretches out of motor shaft and is uncovered setting, and motor housing keeps away from the end that stretches out of motor shaft and is provided with the end cover, and the end cover is sealed setting with motor housing, and one side fixedly connected with support in the end cover corresponds motor housing, and the motor shaft is located to support and motor shaft coaxial line setting, support cover, and the stator sets up in the support outside, and the rotor is cylindric cover and locates outside the stator, and the end that stretches out that the motor shaft was kept away from to the rotor is uncovered setting.
By adopting the scheme, the rotor is arranged on the outer side of the stator, so that the motor becomes an outer rotor motor structure, the space-saving design is compact, the outer rotor can generate larger torque at low speed, the rotational inertia is large, and the stable-speed operation is facilitated.
Preferably, the second planar thrust bearing is arranged at the position, close to the extending end of the motor shaft, of the support, the second planar thrust bearing and the motor shaft are arranged coaxially, a fixed ring of the second planar thrust bearing is connected to the support, a moving ring of the second planar thrust bearing is sleeved on the motor shaft and rotates along with the motor shaft, and the moving ring of the second planar thrust bearing abuts against one side, far away from the extending end of the motor shaft, of the rotor.
By adopting the scheme, when the motor shaft is subjected to the axial force from the extending end to the inner direction of the motor shell, the rotor abuts against the moving coil of the second plane thrust bearing under the action of the axial force, and the second plane thrust bearing transmits the axial force transmitted by the motor shaft and the rotor to the motor shell through the bracket.
Preferably, the second planar thrust bearing is arranged on one side, close to the rotor, of the end cover, the second planar thrust bearing is arranged coaxially with the motor shaft, a stepped shaft section is arranged at the position, corresponding to the second planar thrust bearing, of one end, far away from the extending end, of the motor shaft, the diameter of the stepped shaft section is smaller than that of the motor shaft, a fixed ring of the second planar thrust bearing is connected to the end cover, a movable ring of the second planar thrust bearing is sleeved on the stepped shaft section, and the movable ring of the second planar thrust bearing abuts against one end, close to the end cover, of the motor shaft.
By adopting the scheme, when the motor shaft is subjected to the axial force from the extending end to the inner direction of the motor shell, one end of the motor shaft close to the end cover abuts against the moving coil of the second plane thrust bearing, and the second plane thrust bearing transmits the axial force transmitted by the stepped shaft section and the motor shaft to the motor shell through the end cover.
Preferably, the end cover is provided with a threaded hole corresponding to the second planar thrust bearing, the end cover is in threaded connection with a sealing cover corresponding to the threaded hole, one side, close to the motor shaft, of the sealing cover is provided with a mounting groove, and the second planar thrust bearing is arranged in the mounting groove.
Through adopting above-mentioned scheme, the sealed lid of second plane thrust bearing position department can be dismantled through threaded connection's mode, and the technical staff of being convenient for overhauls motor shaft and second plane thrust bearing, reduces the maintenance degree of difficulty extension equipment's of equipment life.
Preferably, all the deep groove ball bearings are arranged on the inner side of the support, the fixed ring of each deep groove ball bearing is connected to the support, and the moving ring of each deep groove ball bearing is sleeved on the motor shaft and rotates along with the motor shaft.
By adopting the scheme, the deep groove ball bearing is used for bearing the radial force applied to the motor shaft in the motor operation process, so that the interference of the radial force on the motor operation is reduced, and the service life of equipment is prolonged.
Preferably, the end cap is threadedly attached to the motor housing.
Through adopting above-mentioned scheme, the end cover can be dismantled and connect in motor housing, and the technical staff of being convenient for overhauls the motor, prolongs the life of motor.
Preferably, the end cap is provided with a glan head for threading the cable.
Through adopting above-mentioned scheme, the glan head reduces the cable and produces the probability of axial displacement and radial rotation, improves the waterproof dustproof ability of motor.
In summary, the present application has the following beneficial effects:
1. the first plane thrust bearing and the second plane thrust bearing conduct the axial force of the motor shaft to the motor shell, so that the influence of the axial force of the motor shaft on the deep groove ball bearing is reduced, the working condition of the deep groove ball bearing is improved, the service life of the deep groove ball bearing is prolonged, the condition of running vibration of the motor is reduced, and the service life of the whole motor is prolonged;
2. under the condition of the same performance, the combined design of the plane thrust bearing and the deep groove ball bearing is smaller in size, so that the size of the motor is reduced, and the reliability of the motor is improved;
3. the sealing cover at the position of the second plane thrust bearing is detachable in a threaded connection mode, so that technicians can conveniently overhaul the motor shaft and the second plane thrust bearing, the maintenance difficulty of the equipment is reduced, and the service life of the equipment is prolonged.
Drawings
FIG. 1 is a schematic structural diagram of embodiment 1 of the present application;
FIG. 2 is a cross-sectional view of embodiment 1 of the present application;
FIG. 3 is a schematic structural diagram of embodiment 2 of the present application;
fig. 4 is a sectional view of embodiment 2 of the present application.
Description of reference numerals: 1. a motor housing; 11. a motor shaft; 111. a stator; 112. a rotor; 113. a stepped shaft section; 2. an end cap; 21. a glan head; 22. a threaded hole; 3. a sealing cover; 31. mounting grooves; 4. a support; 41. a deep groove ball bearing; 5. a first planar thrust bearing; 6. a second planar thrust bearing.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a combined bidirectional axial force bearing motor.
Example 1:
referring to fig. 1 and 2, including motor housing 1, motor shaft 11, stator 111 and rotor 112, motor shaft 11 rotates and connects in motor housing 1, motor shaft 11 one end is stretched out motor housing 1 and is set up, stator 111 sets up in motor housing 1, rotor 112 fixed connection corresponds stator 111 position department in motor shaft 11, motor housing 1 keeps away from the end that stretches out of motor shaft 11 and is uncovered setting, motor housing 1 corresponds uncovered position department threaded connection and is end cover 2, end cover 2 is sealed setting with motor housing 1, end cover 2 threaded connection has the glan head 21 that is used for wearing to establish the cable. The glan head 21 reduces the probability of axial displacement and radial rotation of the cable, and improves the waterproof and dustproof capacity of the motor. The end cover 2 is fixedly connected with a support 4 corresponding to one side in the motor shell 1, the support 4 is arranged coaxially with the motor shaft 11, the support 4 is sleeved on the motor shaft 11, the stator 111 is fixedly connected to the outer side of the support 4, the rotor 112 is cylindrical and is covered outside the stator 111, and the extending end of the rotor 112 away from the motor shaft 11 is arranged in an open manner. The end cover 2 can be detachably connected to the motor shell 1, so that technicians can conveniently overhaul the motor, and the service life of the motor is prolonged. The rotor 112 is arranged on the outer side of the stator 111, so that the motor is of an outer rotor 112 motor structure, the space-saving design is compact, the outer rotor 112 can generate larger torque at low speed, the rotational inertia is large, and the stable-speed operation is facilitated.
Referring to fig. 1 and 2, a plurality of deep groove ball bearings 41 for bearing the radial force of the motor shaft 11 are arranged in the bracket 4, all the deep groove ball bearings 41 are arranged inside the bracket 4, a fixed ring of the deep groove ball bearings 41 is connected to the bracket 4, and a moving ring of the deep groove ball bearings 41 is sleeved on the motor shaft 11 and rotates along with the motor shaft 11. The deep groove ball bearing 41 is used for bearing the radial force applied to the motor shaft 11 in the motor operation process, so that the interference of the radial force on the motor operation is reduced, and the service life of the equipment is prolonged.
Referring to fig. 1 and 2, a first planar thrust bearing 5 is sleeved on a motor shaft 11, a fixed ring of the first planar thrust bearing 5 is connected to the inner side of one end of a motor housing 1 far away from an end cover 2, a moving ring of the first planar thrust bearing 5 is sleeved on the motor shaft 11 and rotates along with the motor shaft 11, and one side of the first planar thrust bearing 5 far away from the extending end of the motor shaft 11 abuts against a rotor 112.
Referring to fig. 1 and 2, a second planar thrust bearing 6 for bearing an axial force of the motor shaft 11 from the extending end to the inside of the motor housing 1 is arranged in the motor housing 1, the second planar thrust bearing 6 is arranged at a position of the bracket 4 close to the extending end of the motor shaft 11, the second planar thrust bearing 6 is arranged coaxially with the motor shaft 11, a fixed coil of the second planar thrust bearing 6 is connected to the bracket 4, a moving coil of the second planar thrust bearing 6 is sleeved on the motor shaft 11 and rotates with the motor shaft 11, and the moving coil of the second planar thrust bearing 6 abuts against one side of the rotor 112 away from the extending end of the motor shaft 11. When the motor shaft 11 is subjected to an axial force in the motor operation process, the first plane thrust bearing 5 bears the axial force of the motor shaft 11 from the end cover 2 to the extending end, and the second plane thrust bearing 6 bears the axial force of the motor shaft 11 from the extending end to the end cover 2. The first planar thrust bearing 5 and the second planar thrust bearing 6 transmit the axial force of the motor shaft 11 to the motor housing 1, so that the influence of the axial force of the motor shaft 11 on the deep groove ball bearing 41 is reduced, the working condition of the deep groove ball bearing 41 is improved, the service life of the deep groove ball bearing 41 is prolonged, the condition of motor running jitter is reduced, and the service life of the whole motor is prolonged. Meanwhile, compared with the common scheme of using a conical roller bearing, the scheme of the first planar thrust bearing 5, the second planar thrust bearing 6 and the deep groove ball bearing 41 of the motor which work in a matched mode is smaller in the combined design of the planar thrust bearing and the deep groove ball bearing 41 under the condition of the same performance, and the motor is beneficial to reducing the size of the motor and improving the reliability of the motor.
The implementation principle of the embodiment 1 is as follows: when the motor shaft 11 is subjected to axial force in the motor operation process, the first plane thrust bearing 5 bears the axial force of the motor shaft 11 from the end cover 2 to the extending end; when the motor shaft 11 receives an axial force from the extending end to the inside of the motor housing 1, the rotor 112 abuts against the moving coil of the second planar thrust bearing 6 under the action of the axial force, and the second planar thrust bearing 6 transmits the axial force transmitted by the motor shaft 11 and the rotor 112 to the motor housing 1 through the bracket 4. The first planar thrust bearing 5 and the second planar thrust bearing 6 transmit the axial force of the motor shaft 11 to the motor housing 1, so that the influence of the axial force of the motor shaft 11 on the deep groove ball bearing 41 is reduced, the working condition of the deep groove ball bearing 41 is improved, the service life of the deep groove ball bearing 41 is prolonged, the condition of motor running jitter is reduced, and the service life of the whole motor is prolonged.
Meanwhile, compared with the common scheme of using a conical roller bearing, the scheme of the first planar thrust bearing 5, the second planar thrust bearing 6 and the deep groove ball bearing 41 of the motor which work in a matched mode is smaller in the combined design of the planar thrust bearing and the deep groove ball bearing 41 under the condition of the same performance, and the motor is beneficial to reducing the size of the motor and improving the reliability of the motor.
Example 2:
referring to fig. 3 and 4, the present embodiment is different from embodiment 1 in that a threaded hole 22 is formed in a position of the end cover 2 corresponding to the end of the motor shaft 11, a sealing cover 3 is threadedly connected to a position of the end cover 2 corresponding to the threaded hole 22, a mounting groove 31 is formed in a side of the sealing cover 3 close to the motor shaft 11, and the second planar thrust bearing 6 is disposed in the mounting groove 31. The sealing cover 3 at the position of the second plane thrust bearing 6 can be detached in a threaded connection mode, so that technicians can conveniently overhaul the motor shaft 11 and the second plane thrust bearing 6, the maintenance difficulty of the equipment is reduced, and the service life of the equipment is prolonged.
Referring to fig. 3 and 4, the second planar thrust bearing 6 is coaxially disposed with the motor shaft 11, a stepped shaft section 113 is fixedly connected to a position of the end of the motor shaft 11 close to the end cover 2, which corresponds to the second planar thrust bearing 6, a diameter of the stepped shaft section 113 is smaller than a diameter of the motor shaft 11, a fixed coil of the second planar thrust bearing 6 is connected to the end cover 2, a moving coil of the second planar thrust bearing 6 is sleeved on the stepped shaft section 113, and the moving coil of the second planar thrust bearing 6 abuts against one end of the motor shaft 11 close to the end cover 2. When the motor shaft 11 receives an axial force from the extending end to the inside of the motor housing 1, one end of the motor shaft 11 close to the end cap 2 abuts against the moving coil of the second planar thrust bearing 6, and the second planar thrust bearing 6 transmits the axial force transmitted by the stepped shaft section 113 and the motor shaft 11 to the motor housing 1 through the end cap 2.
The implementation principle of the embodiment 2 is as follows: when the motor shaft 11 is subjected to axial force in the motor operation process, the first plane thrust bearing 5 bears the axial force of the motor shaft 11 from the end cover 2 to the extending end; when the motor shaft 11 receives an axial force from the extending end to the inside of the motor housing 1, one end of the motor shaft 11 close to the end cap 2 abuts against the moving coil of the second planar thrust bearing 6, and the second planar thrust bearing 6 transmits the axial force transmitted by the stepped shaft section 113 and the motor shaft 11 to the motor housing 1 through the end cap 2. The first planar thrust bearing 5 and the second planar thrust bearing 6 transmit the axial force of the motor shaft 11 to the motor housing 1, so that the influence of the axial force of the motor shaft 11 on the deep groove ball bearing 41 is reduced, the working condition of the deep groove ball bearing 41 is improved, the service life of the deep groove ball bearing 41 is prolonged, the condition of motor running jitter is reduced, and the service life of the whole motor is prolonged.
The embodiment of the application improves the condition that the deep groove ball bearing 41 of the motor is easy to damage under the action of axial force.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a modular two-way axial force bears motor, includes motor housing (1), motor shaft (11), stator (111) and rotor (112), and motor shaft (11) rotate to be connected in motor housing (1), and motor shaft (11) one end is stretched out motor housing (1) and is set up, and stator (111) set up in motor housing (1), and rotor (112) are connected in motor shaft (11) and correspond stator (111) position department, its characterized in that: a first plane thrust bearing (5) is arranged on the motor shaft (11), a fixed ring of the first plane thrust bearing (5) is connected to the motor shell (1), a movable ring of the first plane thrust bearing (5) is sleeved on the motor shaft (11) and rotates along with the motor shaft (11), and one side, away from the extending end of the motor shaft (11), of the first plane thrust bearing (5) is abutted to the rotor (112);
a second plane thrust bearing (6) used for bearing the axial force of the motor shaft (11) from the extending end to the inner direction of the motor shell (1) is arranged in the motor shell (1);
a plurality of deep groove ball bearings (41) used for bearing the radial force of the motor shaft (11) are arranged in the motor shell (1).
2. A modular bi-directional axial force bearing electric machine according to claim 1, characterized in that: motor shaft (11) are kept away from in motor housing (1) the end that stretches out is uncovered setting, motor housing (1) is kept away from the end that stretches out of motor shaft (11) and is provided with end cover (2), end cover (2) are sealed setting with motor housing (1), one side fixedly connected with support (4) in end cover (2) correspond motor housing (1), support (4) and motor shaft (11) coaxial line setting, motor shaft (11) are located in support (4) cover, stator (111) set up in the support (4) outside, rotor (112) are cylindric cover and locate stator (111) outside, the end that stretches out that motor shaft (11) were kept away from in rotor (112) is uncovered setting.
3. A modular bi-directional axial force bearing electric machine according to claim 2, characterized in that: the second plane thrust bearing (6) is arranged at the position, close to the extending end of the motor shaft (11), of the support (4), the second plane thrust bearing (6) and the motor shaft (11) are coaxially arranged, a fixed ring of the second plane thrust bearing (6) is connected to the support (4), a moving ring of the second plane thrust bearing (6) is sleeved on the motor shaft (11) and rotates along with the motor shaft (11), and the moving ring of the second plane thrust bearing (6) abuts against one side, far away from the extending end of the motor shaft (11), of the rotor (112).
4. A modular bi-directional axial force bearing electric machine according to claim 2, characterized in that: the second plane thrust bearing (6) is arranged on one side, close to the rotor (112), of the end cover (2), the second plane thrust bearing (6) and the motor shaft (11) are coaxially arranged, a stepped shaft section (113) is arranged at the position, corresponding to the second plane thrust bearing (6), of one end, far away from the extending end, of the motor shaft (11), the diameter of the stepped shaft section (113) is smaller than that of the motor shaft (11), a fixed ring of the second plane thrust bearing (6) is connected to the end cover (2), a movable ring of the second plane thrust bearing (6) is sleeved on the stepped shaft section (113), and the movable ring of the second plane thrust bearing (6) abuts against one end, close to the end cover (2), of the motor shaft (11).
5. A modular bi-directional axial force bearing electric machine according to claim 4, characterized in that: the end cover (2) is provided with a threaded hole (22) corresponding to the position of the second plane thrust bearing (6), the end cover (2) is in threaded connection with a sealing cover (3) corresponding to the position of the threaded hole (22), one side, close to the motor shaft (11), of the sealing cover (3) is provided with a mounting groove (31), and the second plane thrust bearing (6) is arranged in the mounting groove (31).
6. A combined bi-directional axial force bearing electrical machine according to claim 3 or 4, wherein: all the deep groove ball bearings (41) are arranged on the inner side of the support (4), the fixed ring of each deep groove ball bearing (41) is connected to the support (4), and the moving ring of each deep groove ball bearing (41) is sleeved on the motor shaft (11) and rotates along with the motor shaft (11).
7. A combined bi-directional axial force bearing electrical machine according to claim 3 or 4, wherein: the end cover (2) is in threaded connection with the motor shell (1).
8. A combined bi-directional axial force bearing electrical machine according to claim 3 or 4, wherein: the end cover (2) is provided with a gland head (21) for penetrating a cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220340074.XU CN216774450U (en) | 2022-02-19 | 2022-02-19 | Combined bidirectional axial force bearing motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220340074.XU CN216774450U (en) | 2022-02-19 | 2022-02-19 | Combined bidirectional axial force bearing motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216774450U true CN216774450U (en) | 2022-06-17 |
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ID=81956836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220340074.XU Active CN216774450U (en) | 2022-02-19 | 2022-02-19 | Combined bidirectional axial force bearing motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216774450U (en) |
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2022
- 2022-02-19 CN CN202220340074.XU patent/CN216774450U/en active Active
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