CN215934582U

CN215934582U - Permanent magnet motor for low-temperature pump

Info

Publication number: CN215934582U
Application number: CN202122477796.8U
Authority: CN
Inventors: 王家堡
Original assignee: Hunan Institute of Engineering
Current assignee: Hunan Institute of Engineering
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-03-01
Anticipated expiration: 2031-10-14

Abstract

The utility model relates to the technical field of permanent magnet motors, in particular to a permanent magnet motor for a low-temperature pump, which comprises a motor body and a chassis, wherein a mounting frame is symmetrically and fixedly arranged on the lower surface of the motor body, connecting grooves are symmetrically formed in the upper surface of the chassis, a motor is symmetrically and fixedly arranged on one side of the chassis, a screw rod is fixedly arranged at the output end of the motor and penetrates through the connecting grooves, positive and negative threads are symmetrically formed in the outer surface of the screw rod positioned in the connecting grooves, movable blocks are symmetrically sleeved on the outer surface of the screw rod, and an inserted rod is fixedly arranged on the outer surface of each movable block. According to the permanent magnet motor, the chassis is arranged, and the upper screw rod, the motor, the connecting block, the inserting rod, the movable rod, the matching hole and other related structures are matched, so that the permanent magnet motor can be installed without being fixedly installed by bolts, the whole installation process is simple to operate, the connecting block is only required to be aligned to the lantern ring, and further, later-stage maintenance of workers is facilitated.

Description

Permanent magnet motor for low-temperature pump

Technical Field

The utility model relates to the technical field of permanent magnet motors, in particular to a permanent magnet motor for a low-temperature pump.

Background

In recent years, with the rapid development of permanent magnet materials, permanent magnet motors have been developed greatly, and because the permanent magnet motors have the advantages of high efficiency, high power density, large starting torque, wide speed regulation range and the like, induction motors and switched reluctance motors have been gradually replaced, and the permanent magnet motors are increasingly widely applied in various fields of industrial production and daily life.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a permanent magnet motor for a low-temperature pump.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a permanent magnet motor for cryopump, includes motor body and chassis, motor body's lower surface symmetry fixed mounting has the mounting bracket, the spread groove has been seted up to the upper surface symmetry on chassis, a lateral symmetry fixed mounting on chassis has the motor, the output fixed mounting of motor has the lead screw, the lead screw runs through the inside that sets up at the spread groove, is located inside the spread groove positive and negative screw thread has been seted up to the surface symmetry of lead screw, the surface symmetry cover of lead screw is equipped with the movable block, the surface fixed mounting of movable block has the inserted bar, the lower surface symmetry fixed mounting of mounting bracket has the connecting block, the matching hole has all been seted up to the inside of connecting block and the both sides inner wall of spread groove, the inside of establishing at the matching hole is inserted to the inserted bar.

In order to facilitate the normal connection of the connecting block and the screw rod, the utility model has the improvement that the outer surface of the connecting block is provided with a groove, two ends of the screw rod, which are close to the matching hole, are symmetrically and fixedly provided with lantern rings, and the lantern rings are matched with the groove in size.

In order to conveniently separate the two groups of movable blocks, the utility model has the improvement that the outer surface of the screw rod is fixedly provided with an isolating ring.

In order to improve the limiting effect of the movable block, the utility model improves that the inner wall of the connecting groove is symmetrically provided with limiting grooves, and the movable block is in a convex shape.

In order to improve the connecting effect of the mounting frame and the chassis, the utility model has the improvement that the lower surface of the mounting frame is fixedly provided with a rubber pad.

In order to improve the heat dissipation effect of the motor body, the utility model improves that an auxiliary heat dissipation mechanism is arranged inside the chassis, the auxiliary heat dissipation mechanism comprises a micro motor, a built-in hole is formed inside the chassis, the micro motor is fixedly installed inside the built-in hole, a rotating shaft is fixedly installed at the output end of the micro motor, fan blades are fixedly installed on the outer surface of the rotating shaft, and a ventilation shell is sleeved on the outer surface of each fan blade.

In order to ensure that the fan can uniformly radiate the heat of the motor, the utility model has the improvement that the upper surface of the ventilation shell is uniformly provided with air guide grooves.

Compared with the prior art, the utility model has the advantages and positive effects that:

1. according to the permanent magnet motor, the chassis is arranged, and the upper screw rod, the motor, the connecting block, the inserting rod, the movable rod, the matching hole and other related structures are matched, so that the permanent magnet motor can be installed without being fixedly installed by bolts, the whole installation process is simple to operate, the connecting block only needs to be aligned to the lantern ring, and further later-stage maintenance of workers is facilitated.

2. According to the utility model, the auxiliary heat dissipation mechanism is arranged, and the micro motor and the fan blade structure are additionally arranged in the chassis, so that the fan blades can be driven to rotate under the driving action of the micro motor while the motor body works, and wind power is uniformly guided to the lower surface of the motor body through the wind guide groove, thereby carrying out external auxiliary heat dissipation on the motor.

Drawings

Fig. 1 is a schematic perspective view of a permanent magnet motor for a cryopump according to the present invention;

fig. 2 is an exploded view of a permanent magnet motor for a cryopump according to the present invention;

FIG. 3 is an enlarged view of a portion A of the permanent magnet motor for a cryopump of the present invention shown in FIG. 2;

fig. 4 is a schematic structural diagram of an auxiliary heat dissipation mechanism of a permanent magnet motor for a cryopump according to the present invention.

Illustration of the drawings:

1. a motor body; 2. a mounting frame; 3. a chassis; 4. connecting grooves; 5. a motor; 6. a screw rod; 7. a movable block; 8. inserting a rod; 9. connecting blocks; 10. a matching hole; 11. a collar; 12. a micro motor; 13. a rotating shaft; 14. a fan blade; 15. a ventilated casing.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1-4, the present invention provides a technical solution: a permanent magnet motor for a cryopump comprises a motor body 1 and a chassis 3, wherein a mounting frame 2 is symmetrically and fixedly mounted on the lower surface of the motor body 1, connecting grooves 4 are symmetrically formed in the upper surface of the chassis 3, a motor 5 is symmetrically and fixedly mounted on one side of the chassis 3, a screw rod 6 is fixedly mounted at the output end of the motor 5, the screw rod 6 penetrates through the connecting grooves 4, positive and negative threads are symmetrically formed in the outer surface of the screw rod 6 positioned in the connecting grooves 4, movable blocks 7 are symmetrically sleeved on the outer surface of the screw rod 6, inserting rods 8 are fixedly mounted on the outer surface of the movable blocks 7, connecting blocks 9 are symmetrically and fixedly mounted on the lower surface of the mounting frame 2, matching holes 10 are formed in the inner portion of each connecting block 9 and the inner walls of the two sides of the connecting grooves 4, and the inserting rods 8 are inserted in the matching holes 10, and under the driving of the screw rod 6 and the motor 5, the matching effects of the inserting rods 8 and the matching holes 10 are achieved, can fix the connecting block 9 of 2 bottoms of mounting bracket in the inside of spread groove 4, and then accomplish the installation to motor body 1, do not need the manual work to utilize the bolt to carry out the condition of fixing to appear, easy operation is convenient.

The surface of connecting block 9 has seted up the recess, and the both ends symmetry fixed mounting that lead screw 6 is close to matching hole 10 has the lantern ring 11, and the size of a dimension looks adaptation of lantern ring 11 and recess sets up this recess and lantern ring 11, can play certain positioning action, makes things convenient for connecting block 9 to be connected with lead screw 6.

The outer surface of the screw rod 6 is fixedly provided with a separation ring, and the lower surface of the mounting frame 2 is fixedly provided with a rubber pad.

The spacing groove has been seted up to the inner wall symmetry of spread groove 4, and the shape of movable block 7 is the type of protruding, and spacing groove and type of protruding movable block 7 can be at the in-process of movable block 7 motion, carry on spacingly to movable block 7.

The auxiliary heat dissipation mechanism is arranged inside the chassis 3 and comprises a micro motor 12, an internal hole is formed inside the chassis 3, the micro motor 12 is fixedly installed inside the internal hole, a rotating shaft 13 is fixedly installed at the output end of the micro motor 12, fan blades 14 are fixedly installed on the outer surface of the rotating shaft 13, a ventilating shell 15 is sleeved on the outer surface of each fan blade 14, and air guide grooves are uniformly formed in the upper surface of the ventilating shell 15.

The working principle is as follows: when a worker installs the permanent magnet motor, firstly, the motor body 1 is lifted, then the connecting block 9 is aligned to the connecting groove 4 and the lantern ring 11, then the connecting block 9 is slowly placed on the lantern ring 11, at the moment, the lower surface of the mounting frame 2 is combined with the upper surface of the chassis 3, then the worker opens the two groups of motors 5, the motors 5 drive the lead screw 6 to rotate, at the moment, under the auxiliary limiting action of the limiting groove, the movable block 7 on the surface of the lead screw 6 drives the inserting rod 8 to move towards two sides, when the lead screw moves to the final position, the inserting rod 8 is inserted into the matching hole 10, so that the connecting block 9 is connected with the chassis 3, and further the installation of the motor body 1 is realized, when the permanent magnet motor starts to work, if the heat generated by the motor is large, at the moment, the worker can open the micro motor 12, and the micro motor 12 drives the rotating shaft 13 and the fan blade 14 to rotate, wind power directly acts on the lower surface of the motor body 1 through the wind guide groove, and then the motor is physically cooled from the outside, and the heat dissipation speed of the motor is increased.

Although the present invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a permanent-magnet machine for cryopump, includes motor body (1) and chassis (3), its characterized in that: the lower surface of the motor body (1) is symmetrically and fixedly provided with mounting frames (2), the upper surface of the chassis (3) is symmetrically provided with connecting grooves (4), one side of the chassis (3) is symmetrically and fixedly provided with a motor (5), the output end of the motor (5) is fixedly provided with a screw rod (6), the screw rod (6) is arranged in the connecting groove (4) in a penetrating way, the outer surface of the screw rod (6) positioned in the connecting groove (4) is symmetrically provided with positive and negative threads, the outer surface of the screw rod (6) is symmetrically sleeved with movable blocks (7), the outer surface of each movable block (7) is fixedly provided with an inserted rod (8), the lower surface of the mounting rack (2) is symmetrically and fixedly provided with connecting blocks (9), matching holes (10) are formed in the inner portion of the connecting block (9) and the inner walls of the two sides of the connecting groove (4), and the inserting rod (8) is inserted into the matching holes (10).

2. The permanent magnet motor for a cryopump of claim 1, wherein: the outer surface of the connecting block (9) is provided with a groove, two ends of the screw rod (6) close to the matching holes (10) are symmetrically and fixedly provided with lantern rings (11), and the lantern rings (11) are matched with the size of the groove in size.

3. The permanent magnet motor for a cryopump of claim 1, wherein: and the outer surface of the screw rod (6) is fixedly provided with an isolating ring.

4. The permanent magnet motor for a cryopump of claim 1, wherein: the inner wall of the connecting groove (4) is symmetrically provided with a limiting groove, and the movable block (7) is in a convex shape.

5. The permanent magnet motor for a cryopump of claim 1, wherein: the lower surface of the mounting rack (2) is fixedly provided with a rubber pad.

6. The permanent magnet motor for a cryopump of claim 1, wherein: the utility model discloses a fan, including chassis (3), the inside of chassis (3) is provided with supplementary heat dissipation mechanism, supplementary heat dissipation mechanism includes micro motor (12), built-in hole has been seted up to the inside of chassis (3), the inside in built-in hole of micro motor (12) fixed mounting, the output fixed mounting of micro motor (12) has pivot (13), the outer fixed surface of pivot (13) installs flabellum (14), the outer surface cover of flabellum (14) is equipped with ventilative shell (15).

7. The permanent magnet motor for a cryopump of claim 6, wherein: the upper surface of the ventilation shell (15) is uniformly provided with air guide grooves.