CN210273748U

CN210273748U - Low-loss closed motor

Info

Publication number: CN210273748U
Application number: CN201921725265.2U
Authority: CN
Inventors: 高平; 李建军
Original assignee: Zhejiang Xiangyang Gear Electromechanical Co ltd
Current assignee: Zhejiang Xiangyang Gear Electromechanical Co ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-04-07
Anticipated expiration: 2029-10-15

Abstract

The utility model provides a low-loss closed motor belongs to transmission mechanical equipment technical field. The closed motor solves the problem that the cooling effect is poor due to the limitation of the structure of the existing closed motor, and the problem that the unnecessary energy loss is often increased simultaneously due to the unreasonable increase of the heat dissipation structure. This low-loss closed motor, which comprises a housin, the front end housing, the rear end housing, stator magnet steel and rotor lamination, the inner wall of locating the casing is inlayed to the stator magnet steel, the pivot is worn to be equipped with in the position and the center of rotor lamination mutually supporting and the stator magnet steel, install footstep bearing on the rear end housing, install roller bearing on the front end housing, the both ends of rotor lamination all are fixed with heat conduction cover, heat conduction cover and pivot are laminated mutually, the rear end cover of pivot is equipped with the axle sleeve, the tip and the footstep bearing of axle sleeve are supported and are leaned on, be provided with the flywheel on the axle sleeve, be provided with the conducting strip on the rear end housing, the. The utility model has the advantages of the radiating effect is good and can effectively reduce the loss.

Description

Low-loss closed motor

Technical Field

The utility model belongs to the technical field of transmission mechanical equipment, a motor is related to, in particular to low-loss closed motor.

Background

The motor is a device for converting electric energy into mechanical energy, the motor usually includes a rotor with a rotating shaft, a bearing, a stator winding and a bracket for accommodating the stator and rotor windings, a housing for fixing the bracket, the housing includes a housing body and front and rear end covers arranged at two ends of the housing body, a large amount of heat is generated in the housing in the process of the motor operation, the whole motor is overheated along with the continuous accumulation of the heat, the electromagnetic conversion efficiency of a winding coil is influenced, even the bearing operation is possibly influenced, the conventional motor carries out heat dissipation by installing a fan on the rotating shaft, but the efficiency of the motor is reduced to a certain extent by the existence of the fan, the enclosed motor is a structural form that the surrounding air and the internal air of the motor do not flow through the enclosed housing, the enclosed motor has the characteristic of preventing harmful substances from invading from the outside, and the enclosed motor has the problem of poor cooling effect due to the structural limitation, unreasonable addition of heat dissipation structures also tends to increase unnecessary energy losses.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a radiating effect is good and can effectively reduce the consumption closed motor.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a low-loss closed motor, includes casing, front end housing, rear end housing, stator magnet steel and rotor lamination, front end housing and rear end housing seal fixed in the both ends of casing, its characterized in that, stator magnet steel inlay the inner wall of locating the casing, the pivot is worn to be equipped with in rotor lamination's position and stator magnet steel mutually supporting and center, installs footstep bearing on the rear end housing, installs roller bearing on the front end housing, the pivot support through two bearings, the both ends of rotor lamination all are fixed with the heat conduction cover, and the heat conduction cover is laminated with the pivot mutually, the rear end housing of pivot is equipped with the axle sleeve, and the tip and the footstep bearing of axle sleeve offset and lean on, the axle sleeve on be provided with the flywheel, the rear end housing on be provided with the conducting strip, the both ends face of conducting strip is laminated with the rear end housing.

The technical effects of the low-loss closed motor are as follows: the effect of fixed rotor has been played through setting up the heat conduction cover at rotor lamination both ends to the area of contact that has increased with the pivot is convenient for make the heat transfer that stator-rotor subassembly produced for the pivot, wherein the stator magnet steel directly inlays and locates the thermal transmission of being convenient for in the casing and derive, and is further, sets up axle sleeve and flywheel at the rear end of pivot, and the flywheel passes through the conducting strip and laminates with the rear end cap, and the design of this structure helps making the epaxial heat transfer also make the rotational speed of motor more stable to the rear end cap, the utility model discloses a structure makes the inside heat of motor transmit the casing outside more easily, and the outside heat radiation structure of rethread casing realizes effectively dispelling the heat, need not to set up the effectual loss that reduces the motor of fan in the pivot.

In the low-loss closed motor, the flywheel is fixed through the snap ring, and the snap ring is supported and abutted through the step structure on the shaft sleeve.

In the low-loss closed motor, the sealing ring is arranged between the front end cover and the rotating shaft.

In the low-loss closed motor, the front end cover is provided with a mounting groove and is mechanically sealed in the groove, and the mechanical seal cover is arranged on the rotating shaft.

Compared with the prior art, the low-loss closed motor has the advantages that the loss is lower, the heat of the rotor lamination is transferred to the rear end cover through the heat conduction sleeve, the shaft sleeve, the flywheel and the heat conduction fins, the stator magnetic steel is embedded in the shell, the heat is transferred to the outside of the shell, and the motor rotating speed is better in heat dissipation effect and is more stable.

Drawings

Fig. 1 is a sectional view of the present canned motor.

In the figure, 1, a housing; 2. a front end cover; 3. a rear end cap; 4. stator magnetic steel; 5. rotor lamination; 6. a rotating shaft; 7. a thrust bearing; 8. a roller bearing; 9. a heat conducting sleeve; 10. a shaft sleeve; 11. a flywheel; 12. a heat conductive sheet; 13. a snap ring; 14. a seal ring; 15. and (4) mechanically sealing.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, the low-loss closed motor includes a housing 1, a front end cover 2, a rear end cover 3, stator magnetic steel 4 and a rotor lamination 5, the front end cover 2 and the rear end cover 3 are fixed at two ends of the housing 1 in a sealing manner, the stator magnetic steel 4 is embedded in an inner wall of the housing 1, a rotating shaft 6 is arranged at a position of the rotor lamination 5 and is matched with the stator magnetic steel 4, a thrust bearing 7 is installed on the rear end cover 3, a roller bearing 8 is installed on the front end cover 2, the rotating shaft 6 is supported by two bearings, heat conducting sleeves 9 are fixed at two ends of the rotor lamination 5, the heat conducting sleeves 9 are attached to the rotating shaft 6, a shaft sleeve 10 is arranged on a rear end sleeve of the rotating shaft 6, the end of the shaft sleeve 10 abuts against the thrust bearing 7, a flywheel 11 is arranged on the shaft sleeve 10, a heat conducting fin 12 is arranged on the rear end cover 3.

In further detail, the flywheel 11 is fixed by a snap ring 13, and the snap ring 13 is supported against by a step structure on the shaft sleeve 10.

Further, a sealing ring 14 is arranged between the front end cover 2 and the rotating shaft 6, a mounting groove is formed in the front end cover 2, a mechanical seal 15 is arranged in the groove, the rotating shaft 6 is sleeved with the mechanical seal 15, the sealing ring 14 and the mechanical seal 15 are used for sealing a gap between the front end cover 2 and the rotating shaft 6, and sealing oil can be filled into the motor shell 1.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the housing 1, the front end cover 2, the rear end cover 3, the stator magnetic steel 4, the rotor lamination 5, the rotating shaft 6, the thrust bearing 7, the roller bearing 8, the heat conducting sleeve 9, the shaft sleeve 10, the flywheel 11, the heat conducting fins 12, the snap ring 13, the sealing ring 14, the mechanical seal 15, and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a low-loss closed motor, includes casing (1), front end housing (2), rear end housing (3), stator magnet steel (4) and rotor lamination (5), front end housing (2) and rear end housing (3) sealed both ends of being fixed in casing (1), its characterized in that, stator magnet steel (4) inlay the inner wall of locating casing (1), the position and the stator magnet steel (4) of rotor lamination (5) mutually support and the center wears to be equipped with pivot (6), installs footstep bearing (7) on rear end housing (3), installs roller bearing (8) on front end housing (2), pivot (6) support through two bearings, the both ends of rotor lamination (5) all are fixed with heat conduction cover (9), and heat conduction cover (9) are laminated with pivot (6) mutually, the rear end housing of pivot (6) is equipped with axle sleeve (10), and the tip and the footstep bearing (7) of axle sleeve (10) offset and lean on, the heat-conducting type automobile rear end cover is characterized in that a flywheel (11) is arranged on the shaft sleeve (10), a heat-conducting fin (12) is arranged on the rear end cover (3), and two end faces of the heat-conducting fin (12) are respectively attached to the flywheel (11) of the rear end cover (3).

2. A low loss canned motor as in claim 1, wherein the flywheel (11) is held by a snap ring (13) and the snap ring (13) is supported against by a step structure on the sleeve (10).

3. A low loss closed electrical machine as claimed in claim 1, wherein a sealing ring (14) is provided between the front cover (2) and the shaft (6).

4. A low loss closed electric machine according to claim 1 or 3, characterized in that the front end cover (2) is provided with a mounting groove and a mechanical seal (15) is arranged in the groove, the mechanical seal (15) is sleeved on the rotating shaft (6).