Permanent magnet motor rotor embedding device

Abstract

The utility model belongs to the technical field of permanent magnet motors, and particularly relates to a permanent magnet motor rotor embedding device, which comprises a fixed table and a support arranged on the surface of the fixed table, an electric push rod is mounted on the surface of the support, an output shaft of the electric push rod penetrates through the support and is fixedly connected with a push block arranged below the support, and the push block is fixedly connected with the fixed table. The device comprises a fixed table and further comprises a positioning assembly arranged in the fixed table, the positioning assembly comprises two first motors symmetrically installed on the surface of the fixed table, two positioning grooves are symmetrically formed in the fixed table, and a two-way screw rod is arranged in each positioning groove; according to the permanent magnet motor shell fixing device, permanent magnet motor shells of different sizes can be fixed through cooperation of a belt and a connecting rod, meanwhile, a moving assembly is additionally arranged, and the permanent magnet motor shells can be conveniently taken away through cooperation of a sliding groove and a sliding block in the moving assembly.

Description

Technical Field

[0001] The utility model belongs to the technical field of permanent magnet motors, and particularly relates to a rotor embedding device for a permanent magnet motor. Background Technique

[0002] The permanent magnet motor uses permanent magnets to provide excitation, making the motor structure relatively simple, reducing processing and assembly costs, eliminating the slip rings and brushes that are prone to problems, improving the reliability of the motor operation. Also, since there is no need for excitation current and no excitation loss, the efficiency and power density of the motor are improved. The permanent magnet motor consists of a stator and a rotor. During the process of installing the rotor into the stator, without the support of bearings, affected by the magnetic force in the rotor, it will be adsorbed on the electromagnetic steel plate and is difficult to move, affecting the installation of the motor;

[0003] It is found that the publication (announcement) number: CN214591074 discloses a rotor embedding device for a permanent magnet motor. In this technology, "including a support frame, clamping members are fixed at both ends of the bottom of the support frame, and fixing screws are provided on the clamping members" and other technical solutions are disclosed; it has technical effects such as reasonable design of the embedding device structure and improvement of the motor assembly efficiency.

[0004] However, during the installation process, the outer shell of the permanent magnet motor may be offset due to the magnetic force in the rotor, thus affecting the installation;

[0005] To solve the above problems, a rotor embedding device for a permanent magnet motor is proposed in this application. Content of the Utility Model

[0006] To solve the problems raised in the above background technique. The utility model provides a rotor embedding device for a permanent magnet motor, which has the characteristic of positioning the outer shell of the permanent magnet motor.

[0007] To achieve the above object, the utility model provides the following technical solution: A rotor embedding device for a permanent magnet motor, including a fixed table and a bracket arranged on the surface of the fixed table, an electric push rod is installed on the surface of the bracket, the output shaft of the electric push rod penetrates through the bracket and is fixedly connected to a push block arranged below the bracket, and it is characterized in that: a positioning component is further arranged inside the fixed table;

[0008] The positioning assembly includes two first motors symmetrically installed on the surface of the fixed table. Two positioning grooves are symmetrically formed inside the fixed table. A bidirectional screw is arranged inside each positioning groove. The output shaft of the first motor penetrates the surface of the fixed table and is fixedly connected to the bidirectional screw. Two support rods are symmetrically and threadedly connected to the surface of each bidirectional screw. One end of each support rod away from the fixed table is rotatably connected to a connecting rod through a bearing. Two belts are symmetrically arranged above the fixed table. The two ends of the belt are fixedly connected to the two connecting rods on the same side.

[0009] As an optimization of a permanent magnet motor rotor embedding device of the present utility model, a number of friction blocks are respectively fixedly connected to the adjacent surfaces of the two belts.

[0010] As an optimization of a permanent magnet motor rotor embedding device of the present utility model, a ratchet groove is formed inside the connecting rod. A positioning block is arranged inside the ratchet groove. Two fixing grooves are formed inside the positioning block. A first ratchet is arranged inside the fixing groove. The first ratchet is slidably connected to the positioning block through the fixing groove. The first ratchet is meshed with the connecting rod through the ratchet groove. A first spring is arranged inside the fixing groove. Two ends of the first spring are respectively fixedly connected to the first ratchet and the positioning block. A pull rod is fixedly connected to the surface of the positioning block.

[0011] As an optimization of a permanent magnet motor rotor embedding device of the present utility model, two spring pieces are symmetrically arranged above the fixed table. Two ends of the spring piece are respectively fixedly connected to the two connecting rods on the same side.

[0012] As an optimization of a permanent magnet motor rotor embedding device of the present utility model, it further includes a moving assembly arranged inside the fixed table;

[0013] Two sliding grooves are symmetrically formed on the surface of the fixed table. Two sliding blocks are symmetrically and fixedly connected to the surface of the bracket. The sliding blocks are inserted into the sliding grooves. The sliding blocks are slidably connected to the fixed table through the sliding grooves.

[0014] Compared with the prior art, the beneficial effect of the present utility model is that: by adding a positioning assembly to this application, the cooperation of the belt and the connecting rod can be used to fix permanent magnet motor casings of different sizes. At the same time, a moving assembly is added, and the cooperation of the sliding groove and the sliding block can be used to facilitate the removal of the permanent magnet motor casing. Description of the Drawings

[0015] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0016] Figure 1 is a structural schematic diagram of the present utility model;

[0017] Figure 2 is a structural schematic diagram of the front view of the vertical section of the fixed platform in the present utility model;

[0018] Figure 3 is a structural schematic diagram of the top view of the horizontal section of the connecting rod in the present utility model;

[0019] Figure 4 is the present utility model Figure 3 the enlarged view of part A in;

[0020] In the figure:

[0021] 1. Fixed platform; 11. Bracket; 12. Electric push rod;

[0022] 2. Positioning component; 21. First motor; 22. Positioning groove; 23. Bidirectional screw; 24. Support rod; 25. Connecting rod; 26. Belt; 27. Friction block; 28. Ratchet groove; 29. Positioning block; 210. First ratchet; 211. First spring; 212. Spring piece; 213. Pull rod; 3. Moving component; 31. Chute. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1

[0025] As Figure 1 shown;

[0026] A permanent magnet motor rotor embedding device includes a fixed platform 1 and a bracket 11 arranged on the surface of the fixed platform 1. An electric push rod 12 is installed on the surface of the bracket 11. The output shaft of the electric push rod 12 penetrates through the bracket 11 and is fixedly connected to a push block arranged below the bracket 11;

[0027] In this implementation: After checking, the publication (announcement) number: CN214591074 discloses a rotor embedding device for a permanent magnet motor. To solve the technical problems existing in this prior art, such as the problem disclosed in the above background art that "during the installation process, the outer shell of the permanent magnet motor may be offset due to the magnetic force in the rotor, thus affecting the installation". In combination, this problem is obviously a real and difficult problem to solve. In view of this, to solve this technical problem, a positioning component 2 and a moving component 3 are added on this basis.

[0028] Furthermore:

[0029] As Figures 1 to 4 shown;

[0030] Combined with the above content:

[0031] To fix the permanent magnet motor housing, this rotor embedding device for a permanent magnet motor further includes a positioning component 2 arranged inside the fixing table 1;

[0032] The positioning component 2 includes two first motors 21 symmetrically installed on the surface of the fixing table 1. Two positioning grooves 22 are symmetrically opened inside the fixing table 1. A bidirectional screw 23 is arranged inside each positioning groove 22. The output shaft of the first motor 21 penetrates the surface of the fixing table 1 and is fixedly connected to the bidirectional screw 23. Two support rods 24 are symmetrically threadedly connected to the surface of each bidirectional screw 23. One end of each support rod 24 away from the fixing table 1 is rotatably connected to a connecting rod 25 through a bearing. Two belts 26 are symmetrically arranged above the fixing table 1. The two ends of the belt 26 are fixedly connected to the two connecting rods 25 on the same side. A number of friction blocks 27 are fixedly connected to the adjacent surfaces of the two belts 26.

[0033] In this implementation: When it is necessary to fix the permanent magnet motor housing, connect the two first motors 21 to an external power supply and then start them. The support rods 24 on both sides will move closer to the center of the fixing table 1. The two belts 26 will wrap the permanent magnet motor housing due to the special nature of the material. A number of friction blocks 27 will increase the friction with the permanent magnet motor housing and prevent the permanent magnet motor housing from rotating, thus realizing the fixation of the permanent magnet motor housing.

[0034] Even further:

[0035] In an alternative embodiment, a ratchet groove 28 is formed inside the connecting rod 25. A positioning block 29 is disposed inside the ratchet groove 28. Two fixing grooves are formed inside the positioning block 29, and a first ratchet 210 is disposed inside the fixing groove. The first ratchet 210 is slidably connected to the positioning block 29 through the fixing groove. The first ratchet 210 is meshed with the connecting rod 25 through the ratchet groove 28. A first spring 211 is disposed inside the fixing groove. Two ends of the first spring 211 are fixedly connected to the first ratchet 210 and the positioning block 29 respectively. A pull rod 213 is fixedly connected to the surface of the positioning block 29.

[0036] In this embodiment: When the two connecting rods 25 are rotated to a suitable position, the first ratchet 210 will position the connecting rod 25 through the ratchet groove 28. When releasing the fixation of the permanent magnet motor housing and when it is necessary to facilitate the fixation of the next permanent magnet motor housing, pull the pull rod 213 upward. The positioning block 29 will drive the first ratchet 210 to move upward, releasing the positioning of the connecting rod 25, and then the connecting rod 25 can be rotated back to its original position to facilitate the fixation of the next permanent magnet motor housing.

[0037] Furthermore:

[0038] In an alternative embodiment, two spring pieces 212 are symmetrically disposed above the fixing table 1. Two ends of the spring pieces 212 are fixedly connected to the two connecting rods 25 on the same side respectively.

[0039] In this embodiment: When releasing the limit on the connecting rod 25, the spring pieces 212 will push the two connecting rods 25 back to their original positions through elastic potential energy.

[0040] Furthermore:

[0041] In an alternative embodiment, it further includes a moving component 3 disposed inside the fixing table 1;

[0042] Two sliding grooves 31 are symmetrically formed on the surface of the fixing table 1. Two sliding blocks are symmetrically and fixedly connected to the surface of the support 11, and the sliding blocks are inserted into the sliding grooves 31. The sliding blocks are slidably connected to the fixing table 1 through the sliding grooves 31.

[0043] In this embodiment: After installing the rotor, apply a force to the support 11 to move the support 11 to one side to facilitate the removal of the permanent magnet motor housing.

[0044] Working principle and usage process of the present utility model: When it is necessary to fix the permanent magnet motor housing, connect the two first motors 21 to an external power supply and start them. The support rods 24 on both sides will move towards the center of the fixing table 1. The two belts 26 will wrap the permanent magnet motor housing due to the special nature of the material. A number of friction blocks 27 will increase the friction force with the permanent magnet motor housing to prevent the permanent magnet motor housing from rotating, thus achieving the fixation of the permanent magnet motor housing. When the two connecting rods 25 rotate to an appropriate position, the first ratchet 210 will position the connecting rod 25 through the ratchet slot 28. When releasing the fixation of the permanent magnet motor housing and it is necessary to facilitate the fixation of the next permanent magnet motor housing, pull the pull rod 213 upward. The positioning block 29 will drive the first ratchet 210 to move upward, releasing the positioning of the connecting rod 25, and then the connecting rod 25 can be rotated back to its original position to facilitate the fixation of the next permanent magnet motor housing. When releasing the limit on the connecting rod 25, the spring piece 212 will push the two connecting rods 25 back to their original positions through elastic potential energy. After installing the rotor, apply force to the bracket 11 to move the bracket 11 to one side to facilitate the removal of the permanent magnet motor housing.

[0045] Finally, it should be noted that the above are only preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A permanent magnet motor rotor embedding device, comprising a fixed platform (1) and a bracket (11) arranged on the surface of the fixed platform (1). An electric push rod (12) is installed on the surface of the bracket (11). The output shaft of the electric push rod (12) penetrates through the bracket (11) and is fixedly connected to a push block arranged below the bracket (11), characterized in that: It further includes a positioning component (2) disposed inside the fixed table (1); The positioning component (2) includes two first motors (21) symmetrically mounted on the surface of the fixed table (1). Two positioning grooves (22) are symmetrically formed inside the fixed table (1). A bidirectional screw (23) is disposed inside each positioning groove (22). The output shaft of the first motor (21) penetrates through the surface of the fixed table (1) and is fixedly connected to the bidirectional screw (23). Two support rods (24) are symmetrically threadedly connected to the surface of each bidirectional screw (23). One end of each support rod (24) away from the fixed table (1) is rotatably connected to a connecting rod (25) through a bearing. Two belts (26) are symmetrically disposed above the fixed table (1). Two ends of each belt (26) are fixedly connected to two connecting rods (25) on the same side.

2. The permanent magnet motor rotor embedding device according to claim 1, characterized in that: A number of friction blocks (27) are respectively fixedly connected to the adjacent surfaces of the two belts (26).

3. The permanent magnet motor rotor embedding device according to claim 1, wherein: A ratchet groove (28) is formed inside the connecting rod (25). A positioning block (29) is disposed inside the ratchet groove (28). Two fixing grooves are formed inside the positioning block (29). A first ratchet (210) is disposed inside the fixing groove. The first ratchet (210) is slidably connected to the positioning block (29) through the fixing groove. The first ratchet (210) is meshed with the connecting rod (25) through the ratchet groove (28). A first spring (211) is disposed inside the fixing groove. Two ends of the first spring (211) are respectively fixedly connected to the first ratchet (210) and the positioning block (29). A pull rod (213) is fixedly connected to the surface of the positioning block (29).

4. The permanent magnet motor rotor embedding device according to claim 3, characterized in that: Two spring pieces (212) are symmetrically disposed above the fixed table (1). Two ends of each spring piece (212) are respectively fixedly connected to two connecting rods (25) on the same side.

5. The permanent magnet motor rotor embedding device according to claim 1, characterized in that: It further includes a moving component (3) disposed inside the fixed table (1); Two sliding grooves (31) are symmetrically formed on the surface of the fixed table (1). Two sliders are symmetrically and fixedly connected to the surface of the bracket (11). The sliders are inserted into the sliding grooves (31). The sliders are slidably connected to the fixed table (1) through the sliding grooves (31).

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