Sheath crimping device of permanent magnet motor rotor

Abstract

The utility model relates to the technical field of crimping devices, in particular to a sheath crimping device of a permanent magnet motor rotor, which comprises a base body, supporting frames are fixedly mounted at the left end and the right end of the base body, lifting frames are movably connected to the inner sides of the supporting frames through sliding grooves, and limiting rods are movably connected to the bottom ends of the lifting frames through through holes. A first spring is arranged on the outer side of the limiting rod, a protective sleeve is arranged at the top end of the base body, a movable frame is arranged on the inner side of the protective sleeve, a fixed seat is fixedly connected to the bottom end of the inner wall of the base body, a movable pipe is movably connected to the outer side of the fixed seat, and a limiting groove is formed in the side, close to the protective sleeve, of the top end of the base body. According to the utility model, through the arrangement of the base main body, the lifting frame, the limiting rod, the first spring, the sheath, the movable frame, the movable pipe, the rotor, the second spring and the fixed plate, the crimping effect is improved, and the practicability is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of crimping devices, in particular to a sheath crimping device for a permanent magnet motor rotor. Background Art

[0002] A motor is an electromagnetic device that realizes the conversion or transmission of electric energy according to the law of electromagnetic induction. Its main function is to generate driving torque. It is often used as a power source for electrical appliances or various machines. Permanent magnet motor is a common type of motor. It uses permanent magnets as magnetic devices in the motor. The sleeve is connected by first inserting the mouth of one end of the sleeve into the end of the permanent magnet, and then placing a pressure plate on the other end of the sleeve, applying pressure to the pressure plate, and crimping the sleeve onto the permanent magnet. Since the sleeve and the permanent magnet are interference fit, the centering operation between them takes a lot of time, which affects the crimping efficiency.

[0003] After searching, the published patent number CN220440518U mentioned the sleeve crimping device of the permanent magnet motor rotor, which includes a pressure head connected to a press, and is characterized in that a positioning sleeve is provided below the pressure head, the upper part of the positioning sleeve has a small contracted inner circle, the truncated cone body is located in the positioning sleeve, the small outer circle of the upper part of the truncated cone body can be exposed from the small inner circle of the positioning sleeve, the outer circle of the small outer circle is transitionally matched with the inner circle of the sleeve, a sliding sleeve is inserted into the hole of the truncated cone body in a transitionally matched manner, and the hole of the sliding sleeve is connected to the rotor. The shaft is transitionally matched, and the top of the sleeve has a flange. The outer circle of the flange is transitionally matched with the inner circle of the sleeve. A spring is arranged between the cover plate at the bottom of the positioning sleeve and the bottom of the truncated cone body. The beneficial effects of the present invention are that the small outer circle of the truncated cone body positions the sleeve, the hole of the truncated cone body positions and guides the sleeve, and the sleeve positions and guides the rotor, so that the rotor and the sleeve are coaxial, reducing the time taken for the rotor and the sleeve to be centered. When pressure is applied to the rotor, the rotor can be smoothly pressed into the sleeve, and the sleeve will not be damaged during the crimping process.

[0004] Although the above solution solves the problems raised in the background technology, it still has the following shortcomings: when applying pressure to the rotor, it is difficult to stably press the rotor into the sheath, resulting in poor crimping effect and low practicality. Utility Model Content

[0005] The utility model aims to provide a sheath crimping device for a permanent magnet motor rotor to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A sleeve crimping device for a permanent magnet motor rotor comprises a base body, support frames are fixedly installed on both left and right ends of the base body, a lifting frame is movably connected to the inner side of the support frame through a sliding groove, the bottom end of the lifting frame is movably connected to a limiting rod through a through hole, a first spring is provided on the outer side of the limiting rod, a sleeve is provided on the top of the base body, a movable frame is provided on the inner side of the sleeve, a fixing seat is fixedly connected to the bottom end of the inner wall of the base body, a movable tube is movably connected to the outer side of the fixing seat, and a limiting groove is provided on the side of the top of the base body close to the sleeve.

[0008] As a preferred solution of the utility model, the bottom end of the limit rod is fixedly connected to the bottom end of the inner wall of the support frame.

[0009] As a preferred solution of the utility model, a rotor is provided at the top end of the movable frame, and a connecting pipe is fixedly connected to the bottom end of the movable frame.

[0010] As a preferred solution of the present invention, a second spring is provided on the outer side of the fixing seat.

[0011] As a preferred solution of the utility model, the top end of the movable tube is fixedly connected with a fixing plate.

[0012] As a preferred solution of the present utility model, the number of the limiting groove is one.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, a base body, a lifting frame, a limiting rod, a first spring, a sleeve, a movable frame, a movable tube, a rotor, a second spring and a fixed plate are arranged in a sleeve crimping device for a permanent magnet motor rotor, so that the sleeve is placed on the base body, and the crimping effect is improved with the cooperation of the lifting frame, the limiting rod, the first spring, the movable frame, the movable tube, the rotor, the second spring and the fixed plate, thereby enhancing the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the base body and the limiting groove structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the movable frame and the connecting pipe of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the fixing seat, the movable tube, the second spring and the fixing plate of the utility model.

[0019] In the figure: 1. base body; 2. support frame; 3. lifting frame; 4. limit rod; 5. first spring; 6. sheath; 7. movable frame; 8. fixed seat; 9. movable tube; 10. limit groove; 11. rotor; 12. connecting tube; 13. second spring; 14. fixing plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively with reference to the relevant drawings below. Several embodiments of the utility model are given. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] For examples, see Figure 1-4 , the utility model provides a technical solution:

[0025] A sheath crimping device for a permanent magnet motor rotor comprises a base body 1, a support frame 2 is fixedly installed at both left and right ends of the base body 1, a lifting frame 3 is movably connected to the inner side of the support frame 2 through a slide groove, the bottom end of the lifting frame 3 is movably connected to a limit rod 4 through a through hole, a first spring 5 is arranged on the outer side of the limit rod 4, a sheath 6 is arranged at the top of the base body 1, a movable frame 7 is arranged on the inner side of the sheath 6, a fixing seat 8 is fixedly connected to the bottom end of the inner wall of the base body 1, a movable tube 9 is movably connected to the outer side of the fixing seat 8, so that the sheath 6 is placed on the base body 1, the movable frame 7 is placed inside the sheath 6, a rotor 11 is placed on the movable frame 7, a connecting tube 12 is used to limit the rotating shaft of the rotor 11, and a press drives the lifting frame 3 to move downward stably along the limit rod 4, and the crimping effect is improved under the cooperation of the first spring 5, the movable tube 9, the second spring 13 and the fixed plate 14;

[0026] The bottom end of the limiting rod 4 is fixedly connected to the bottom end of the inner wall of the supporting frame 2, a rotor 11 is provided at the top of the movable frame 7, and a connecting pipe 12 is fixedly connected to the bottom end of the movable frame 7, a second spring 13 is provided on the outer side of the fixed seat 8, and a fixing plate 14 is fixedly connected to the top of the movable tube 9, so that the sleeve 6 is placed on the base body 1, the movable frame 7 is placed inside the sleeve 6, and the rotor 11 is placed on the movable frame 7. The connecting pipe 12 plays a limiting role on the rotating shaft of the rotor 11, and the press drives the lifting frame 3 to move downward stably along the limiting rod 4 to press the rotor 11 into the inside of the sleeve 6. After the crimping is completed, the press is reset, and the rebound force generated by the deformation of the first spring 5 drives the lifting frame 3 to reset, and the rebound force generated by the deformation of the second spring 13 drives the movable tube 9 and the fixing plate 14 to move upward along the fixed seat 8, so that the rotor 11 can be taken out easily, the crimping effect is improved, and the practicality is enhanced.

[0027] In this embodiment, please refer to Figure 1 and Figure 2 A limiting groove 10 is provided on one side of the top of the base body 1 close to the sheath 6, so that the sheath 6 is limited by the limiting groove 10;

[0028] There is only one limiting groove 10 , so the limiting groove 10 can limit the sheath 6 , further enhancing the practicality.

[0029] The working process of the utility model is as follows: when in use, check whether the appearance of the equipment is damaged. After the inspection, place the sheath 6 on the base body 1, the movable frame 7 is placed inside the sheath 6, and the rotor 11 is placed on the movable frame 7. The connecting pipe 12 is used to limit the rotating shaft of the rotor 11. The press drives the lifting frame 3 to move downward steadily along the limiting rod 4 to press the rotor 11 into the inside of the sheath 6. After the crimping is completed, the press is reset, and the rebound force generated by the deformation of the first spring 5 drives the lifting frame 3 to reset. The rebound force generated by the deformation of the second spring 13 drives the movable tube 9 and the fixed plate 14 to move upward along the fixed seat 8, which is convenient for taking out the rotor 11 and improving the crimping effect. Among them, the sheath 6 is limited by the limiting groove 10, which enhances the practicality and has promotion value.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sheath crimping device for a permanent magnet motor rotor, comprising a base body (1), characterized in that: The left and right ends of the base body (1) are both fixedly mounted with support frames (2); the inner side of the support frame (2) is movably connected to a lifting frame (3) via a sliding groove; the bottom end of the lifting frame (3) is movably connected to a limit rod (4) via a through hole; the outer side of the limit rod (4) is provided with a first spring (5); the top end of the base body (1) is provided with a sheath (6); the inner side of the sheath (6) is provided with a movable frame (7); the bottom end of the inner wall of the base body (1) is fixedly connected to a fixing seat (8); the outer side of the fixing seat (8) is movably connected to a movable tube (9); and a limiting groove (10) is provided on a side of the top end of the base body (1) close to the sheath (6).

2. The sheath crimping device for a permanent magnet motor rotor according to claim 1, characterized in that: The bottom end of the limiting rod (4) is fixedly connected to the bottom end of the inner wall of the support frame (2).

3. The sheath crimping device for a permanent magnet motor rotor according to claim 1, characterized in that: A rotor (11) is provided at the top end of the movable frame (7), and a connecting pipe (12) is fixedly connected to the bottom end of the movable frame (7).

4. The sheath crimping device for a permanent magnet motor rotor according to claim 1, characterized in that: A second spring (13) is provided on the outer side of the fixing seat (8).

5. The sheath crimping device for a permanent magnet motor rotor according to claim 1, characterized in that: A fixing plate (14) is fixedly connected to the top end of the movable tube (9).

6. The sheath crimping device for a permanent magnet motor rotor according to claim 1, characterized in that: The number of the limiting groove (10) is one.

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