Magnet embedding structure of permanent magnet motor

Abstract

The utility model relates to a magnet embedding structure of a permanent magnet motor, which comprises a base, a base plate fixedly arranged at the bottom end in the base, a screw rod fixedly arranged at the central position of the base plate, a movable ring sleeved on the screw rod and a nut arranged on the screw rod and positioned above the movable ring, and a magnet ring is arranged between the base plate and the movable ring. The screw penetrates through a center hole of the magnet ring, and a limiting pressing assembly is arranged on the base plate. According to the utility model, through cooperation of the base, the chassis, the screw rod and the moving ring, stable fixation of the magnet ring is realized, and the operation stability of the motor is improved; the design of the limiting pressing assembly allows the magnet ring to be replaced quickly, and the maintenance time and cost are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor equipment, and in particular relates to a magnet inlay structure of a permanent magnet motor. Background Art

[0002] Permanent magnet motors (PMMs) are widely used in industrial automation, new energy vehicles, aerospace, and other fields due to their high efficiency, high power density, and excellent control performance. However, existing PMM magnet mounting structures have limitations, such as loose magnet fixation, poor heat dissipation, and high maintenance costs. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a magnet inlay structure of a permanent magnet motor, which is convenient for inlaying and supporting the permanent magnets and improves the stability and maintenance convenience of the permanent magnet motor.

[0004] The technical solution adopted in this utility model is:

[0005] A magnet inlay structure for a permanent magnet motor comprises a base, a chassis fixedly arranged at the bottom end of the base, a screw fixedly arranged at the center position of the chassis, a movable ring sleeved on the screw, and a nut mounted on the screw and located above the movable ring, the magnet ring being arranged between the chassis and the movable ring, and the screw passing through the center hole of the magnet ring; a limited position clamping assembly is arranged on the chassis, the limited position clamping assembly comprising a first pressure block arranged on the magnet ring, a connecting rod connected to the first pressure block at one end by a connecting shaft, and a guide shaft for fixing the first pressure block to the chassis, a through hole corresponding to the guide shaft is provided on the magnet ring, the guide shaft is fixedly connected to the chassis after passing through the through hole, and the other end of the connecting rod is hinged to the movable ring.

[0006] Furthermore, the position limiting and pressing assembly also includes an auxiliary pressing rod, which is arranged at an angle and has one end fixedly connected to the connecting shaft. A circular groove is provided on the magnet ring for matching with the end of the auxiliary pressing rod.

[0007] Furthermore, the angle between the auxiliary pressing rod and the connecting rod is degrees.

[0008] Furthermore, an ear block is provided on the first pressing block, and the connecting shaft is installed on the ear block.

[0009] Furthermore, there are several groups of the limiting and pressing components, which are evenly arranged around the circumference of the moving ring.

[0010] Furthermore, an auxiliary limiting assembly is provided on the chassis, which includes a second pressure block, a spring and a limiting rod. A corresponding auxiliary limiting through hole is provided on the magnetic ring. The limiting rod is fixedly connected to the chassis after passing through the auxiliary limiting through hole. The second pressure block is installed at the top position of the limiting rod, and the spring is sleeved on the limiting rod and is located between the magnetic ring and the second pressure block.

[0011] Furthermore, the auxiliary limiting components are evenly arranged in several groups along the circumference.

[0012] Furthermore, an end cover is provided on the base.

[0013] The positive effects of this utility model are:

[0014] The utility model realizes stable fixation of the magnet ring through the cooperation of the base, chassis, screw and movable ring, thereby improving the operating stability of the motor; the design of the limiting and clamping assembly allows for quick replacement of the magnet ring, reducing maintenance time and cost; the use of auxiliary limiting assemblies, such as springs, limiting rods and pressing blocks, provides additional protection for the magnet ring, preventing it from falling off under extreme working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a schematic diagram of the local three-dimensional structure of the utility model Figure 1 ;

[0017] Figure 3 This is a schematic diagram of the local three-dimensional structure of the utility model Figure 2 . DETAILED DESCRIPTION

[0018] As attached Figure 1-3 As shown, the present invention discloses a magnet-mounted structure for a permanent magnet motor, comprising a base 17, a chassis 16, a screw 2, a movable ring 4, a nut 3, a position-limiting and pressing assembly, and an auxiliary position-limiting assembly. The base 17 and chassis 16 provide support for the entire structure. The base 17 is matched with an annular end cap 1.

[0019] The chassis 16 is arranged at the bottom end of the base 17, the screw 2 is fixedly installed at the center position of the chassis 16, the movable ring 4 is sleeved on the screw 2 and a nut 3 is installed on the top of the screw 2, the magnetic ring 15 is installed on the chassis 16, the screw 2 passes through the center hole of the magnetic ring 15, the movable ring 4 is located above the magnetic ring 15, and the nut 3 is pressed against the magnetic ring 15 by a threaded connection to achieve compression positioning.

[0020] The limiting and clamping assembly comprises several groups arranged in a circular array on a magnetic ring 15. These groups include a first pressure block 12, a connecting rod 5, a connecting shaft 6, and a guide shaft 8. A through hole is provided in the magnetic ring 15 for the guide shaft 8 to pass through. The first pressure block 12 is mounted on the surface of the magnetic ring 15. One end of the guide shaft 8 is fixedly connected to the first pressure block 12, while the other end passes through the through hole in the magnetic ring 15 and is fixedly connected to the chassis 16. An ear block 13 is provided on the first pressure block 12, and the connecting shaft 6 is rotatably mounted on the ear block 13. One end of the connecting rod 5 is fixedly connected to the connecting shaft 6, and the other end is hinged to the movable ring 4.

[0021] As a further improvement of the present invention, the limiting clamping assembly can also include an auxiliary clamping rod 7, one end of which is fixedly connected to the connecting shaft 6 and forms a 160-degree angle with the connecting rod 5 to optimize the distribution of the clamping force. A circular groove 14 is provided on the magnet ring 15 for cooperating with the other end of the auxiliary clamping rod 7.

[0022] The auxiliary pressing rod 7 follows the movement of the movable ring 4 and the swinging of the connecting rod 5. When the movable ring 4 presses the magnet ring 15, the connecting rod 5 drives the auxiliary pressing rod 7 to swing into the circular groove 14, thereby pressing and limiting the magnet ring 15. The auxiliary pressing rod 7 is arranged at an angle to enhance the pressing effect.

[0023] Preferably, several groups of auxiliary limiting components are evenly arranged along the circumference of the chassis 16, including a second pressure block 9, a spring 10, and a limiting rod 11. An auxiliary limiting through-hole for the limiting rod 11 to pass through is provided on the magnetic ring 15. One end of the limiting rod 11 passes through the auxiliary limiting through-hole and is fixedly connected to the chassis 16. The second pressure block 9 is fixedly mounted on the other end of the limiting rod 11. The spring 10 is placed on the limiting rod 11 and is located between the second pressure block 9 and the magnetic ring 15, and is fixedly connected to the second pressure block 9 and the magnetic ring 15 respectively. The auxiliary limiting components can also provide stable support and limiting for the magnetic ring 15.

[0024] When the present invention is in use, the base 17 is placed in a predetermined position, and ensure that the bottom end inside it is fixed with a chassis 16, the magnetic ring 15 is placed on the chassis 16, and ensure that the center hole of the magnetic ring 15 is aligned with the screw 2 so that the screw 2 can pass through, and after the guide shaft 8 passes through the circular hole on the magnetic ring 15, the two ends of each first pressure block 12 pass through the guide shaft 8, and ensure that the end of the guide shaft 8 is fixedly connected to the chassis 16, the nut 3 is threadedly connected to the screw 2 to adjust the position and clamping force of the magnetic ring 15, tighten the nut 3 so that the end of the auxiliary clamping rod 7 is against the circular groove 14, assemble the spring 10, the limit rod 11 and the second pressure block 9 on the chassis 16, ensure that the limit rod 11 is evenly arranged and passes through the magnetic ring 15 and the spring 10, the upper end of the spring 10 is fixed to the second pressure block 9, and the other end is fixed to the magnetic ring 15, and the limit rod 11 passes through the second pressure block 9.

[0025] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A magnet inlay structure for a permanent magnet motor, characterized in that The invention comprises a base (17), a chassis (16) fixedly arranged at the bottom end of the base (17), a screw (2) fixedly arranged at the center of the chassis (16), a moving ring (4) sleeved on the screw (2), and a nut (3) mounted on the screw (2) and located above the moving ring (4); a magnetic ring (15) is arranged between the chassis (16) and the moving ring (4); the screw (2) passes through the center hole of the magnetic ring (15); a limited pressure is arranged on the chassis (16); The limiting clamping assembly comprises a first pressing block (12) arranged on a magnetic ring (15), a connecting rod (5) connected to the first pressing block (12) at one end through a connecting shaft (6), and a guide shaft (8) for fixing the first pressing block (12) to a chassis (16); a through hole corresponding to the guide shaft (8) is provided on the magnetic ring (15); the guide shaft (8) is fixedly connected to the chassis (16) after passing through the through hole; and the other end of the connecting rod (5) is hinged to the movable ring (4).

2. The magnet inlay structure of a permanent magnet motor according to claim 1, characterized in that The position limiting and pressing assembly further comprises an auxiliary pressing rod (7), which is arranged at an angle and fixedly connected to the connecting shaft (6) at one end, and a circular groove (14) for matching with the end of the auxiliary pressing rod (7) is provided on the magnet ring (15).

3. The magnet inlay structure of a permanent magnet motor according to claim 2, characterized in that The included angle between the auxiliary pressing rod (7) and the connecting rod (5) is 160 degrees.

4. The magnet inlay structure of a permanent magnet motor according to claim 1, characterized in that An ear block (13) is provided on the first pressing block (12), and the connecting shaft (6) is mounted on the ear block (13).

5. The magnet inlay structure of a permanent magnet motor according to claim 1, characterized in that There are several groups of the position limiting and pressing components, which are evenly arranged in the circumferential direction of the moving ring (4).

6. The magnet inlay structure of a permanent magnet motor according to claim 1, characterized in that An auxiliary limiting assembly is also provided on the chassis (16), and the auxiliary limiting assembly includes a second pressure block (9), a spring (10) and a limiting rod (11). An auxiliary limiting through hole is correspondingly provided on the magnet ring (15). The limiting rod (11) passes through the auxiliary limiting through hole and is fixedly connected to the chassis (16). The second pressure block (9) is installed at the top position of the limiting rod (11). The spring (10) is sleeved on the limiting rod (11) and is located between the magnet ring (15) and the second pressure block (9).

7. The magnet inlay structure of a permanent magnet motor according to claim 6, characterized in that The auxiliary limiting components are evenly arranged in several groups along the circumference.

8. The magnet inlay structure of a permanent magnet motor according to claim 1, characterized in that An end cover (1) is provided on the base (17).

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