Motor magnetic shoe fixing support

Abstract

The utility model relates to the technical field of motor magnetic shoe fixing, and particularly discloses a motor magnetic shoe fixing support which comprises an upper fixing ring and a lower fixing ring which are coaxially arranged, two connecting plates are fixedly arranged between the upper fixing ring and the lower fixing ring, the connecting plates are matched with the upper fixing ring and the lower fixing ring, and the two connecting plates are symmetrically arranged. The cross section of the connecting plate is a sector-ring-shaped cross section, two groups of mounting holes are formed in the upper fixing ring, and two groups of mounting holes are formed in the lower fixing ring; the mounting holes in the upper fixing ring penetrate through the top face and the bottom face of the upper fixing ring, and the mounting holes in the lower fixing ring penetrate through the top face and the bottom face of the lower fixing ring. Through the arrangement of the upper fixing ring, the lower fixing ring and the connecting plate, the movement of the magnetic shoe in the axial direction and the circumferential direction is limited; the arranged connecting plate is attached to the magnetic shoe, so that the contact area between the connecting plate and the magnetic shoe is increased, the firmness of the magnetic shoe during pasting is ensured, and the magnetic shoe is prevented from being damaged; and by arranging the mounting holes, the motor magnetic shoe fixing bracket can be conveniently fixed by using bolts and nuts.

Description

Technical Field

[0001] The utility model relates to the technical field of motor magnetic shoe fixing, and specifically discloses a motor magnetic shoe fixing bracket. Background Art

[0002] Motor magnetic tiles are a type of tile-shaped magnet used in permanent magnet motors. They are mainly used in permanent magnet DC motors. Unlike electromagnetic motors that generate magnetic potential sources through excitation coils, permanent magnet motors use permanent magnetic materials to generate constant magnetic potential sources.

[0003] The motor magnetic tile fixing bracket is an important component used to support and fix the magnetic tile in the motor. There are many ways to fix the motor magnetic tile, including screw fixing, non-weft tape binding fixing and adhesive bonding fixing. Different fixing methods have different advantages and disadvantages and applicable scopes. For example: the screw fixing method is simple and quick, but it may cause damage to the magnetic tile; the non-weft tape binding fixing method can provide a good fixing effect, but requires certain operating skills and experience; the adhesive bonding fixing method is simple and easy, but it requires the use of environmentally friendly adhesives and ensures firm fixing, and the non-weft tape binding fixing and adhesive bonding fixing methods are prone to cause the magnetic tile to move in the circumferential direction. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a motor magnetic tile fixing bracket to solve the problem that screw fixing may cause damage to the magnetic tile, and the fixing method without weft band binding and adhesive bonding may cause the magnetic tile to move in the circumferential direction.

[0005] To achieve the above purpose, the technical solution of the utility model is:

[0006] The motor magnetic shoe fixing bracket described in the utility model comprises an upper fixing ring and a lower fixing ring which are coaxially arranged, two connecting plates are fixedly arranged between the upper fixing ring and the lower fixing ring, the connecting plates are arranged in coordination with the upper fixing ring and the lower fixing ring, the two connecting plates are symmetrically arranged, the cross section of the connecting plates is a fan-shaped cross section, two groups of mounting holes are arranged on the upper fixing ring, and two groups of mounting holes are arranged on the lower fixing ring; the mounting holes on the upper fixing ring pass through the top surface and the bottom surface of the upper fixing ring, and the mounting holes on the lower fixing ring pass through the top surface and the bottom surface of the lower fixing ring.

[0007] in:

[0008] The two groups of mounting holes on the upper fixing ring are arranged alternately with the connecting plate.

[0009] The two groups of mounting holes on the lower fixing ring are arranged alternately with the connecting plate.

[0010] The upper fixing ring and the lower fixing ring have the same structure.

[0011] The two groups of mounting holes on the upper fixing ring are respectively arranged opposite to the two groups of mounting holes on the lower fixing ring.

[0012] Each group of mounting holes comprises three mounting holes, and the three mounting holes are arranged at intervals.

[0013] The angle formed by the straight lines connecting the centers of two adjacent mounting holes on the upper fixing ring and the center of the upper fixing ring is 25-35°.

[0014] The central angle of the fan-shaped cross section is α, and 25°≤α≤30°.

[0015] Said α=28°.

[0016] The upper fixing ring, the lower fixing ring and the connecting plate are all made of polycarbonate.

[0017] The beneficial effects of the utility model are as follows: by setting an upper fixing ring, a lower fixing ring and a connecting plate, an internal space for fixing the magnetic tile is formed, and at the same time, the movement of the magnetic tile in the axial and circumferential directions is limited; by setting a connecting plate to fit with the magnetic tile, the contact area between the connecting plate and the magnetic tile is increased, the firmness of the magnetic tile when pasted is ensured, and damage to the magnetic tile is avoided; by setting mounting holes, the motor magnetic tile fixing bracket can be conveniently fixed with bolts and nuts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic front view of the structure of the utility model;

[0020] Figure 3 for Figure 2 Middle AA view;

[0021] Figure 4 for Figure 2 Middle BB view;

[0022] Description of reference numerals:

[0023] 1. Upper fixing ring; 2. Lower fixing ring; 3. Connecting plate; 4. Mounting hole; α, center angle. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are further described and illustrated below in conjunction with the accompanying drawings.

[0025] Example 1

[0026] like Figure 1-4As shown, the motor magnetic shoe fixing bracket described in the utility model includes an upper fixing ring 1 and a lower fixing ring 2 which are coaxially arranged, two connecting plates 3 are fixedly arranged between the upper fixing ring 1 and the lower fixing ring 2, the connecting plates 3 are arranged in coordination with the upper fixing ring 1 and the lower fixing ring 2, the two connecting plates 3 are symmetrically arranged, and the cross section of the connecting plates 3 is a fan-shaped cross section, two groups of mounting holes 4 are arranged on the upper fixing ring 1, and two groups of mounting holes 4 are arranged on the lower fixing ring 2; the mounting holes 4 on the upper fixing ring 1 pass through the top surface and the bottom surface of the upper fixing ring 1, and the mounting holes 4 on the lower fixing ring 2 pass through the top surface and the bottom surface of the lower fixing ring 2.

[0027] The upper fixing ring 1, the lower fixing ring 2 and the connecting plate 3 are arranged to fix the magnetic tile, limit the movement of the magnetic tile in the axial and circumferential directions, ensure the firm fixation of the magnetic tile, and avoid damage to the magnetic tile. The fan-shaped cross section ensures the contact area between the connecting plate 3 and the magnetic tile, further ensuring the firm fixation of the magnetic tile. When in use, the magnetic tile is bonded and fixed to the upper fixing ring 1, the lower fixing ring 2 and the connecting plate 3 with an adhesive. The installation hole is arranged to facilitate the use of bolts to fix the motor magnetic tile fixing bracket.

[0028] In order to ensure that the motor magnetic shoe fixing bracket is firmly fixed, the two groups of mounting holes 4 on the upper fixing ring 1 are arranged alternately with the connecting plate 3, and the two groups of mounting holes 4 on the lower fixing ring 2 are arranged alternately with the connecting plate 3.

[0029] The upper fixing ring 1 and the lower fixing ring 2 have the same structure.

[0030] The two groups of mounting holes 4 on the upper fixing ring 1 are arranged opposite to the two groups of mounting holes 4 on the lower fixing ring 2 respectively.

[0031] Each group of mounting holes 4 includes three mounting holes 4 , and the three mounting holes 4 are arranged at intervals.

[0032] The angle formed by the center of each of the two adjacent mounting holes 4 on the upper fixing ring 1 and the straight line connecting the center of the upper fixing ring 1 is 25-35°, ensuring the uniform distribution of the bolts in the through holes and the firm fixation of the motor magnetic shoe fixing bracket.

[0033] The central angle of the circle corresponding to the fan-shaped cross section is α, preferably α=28°. At this time, the structure of the motor magnetic shoe fixing bracket is the most stable, and the volume of the magnetic shoe is large enough.

[0034] The upper fixing ring 1, the lower fixing ring 2 and the connecting plate 3 are all made of polycarbonate, which has high and low temperature resistance within a range of -40 to 130°C.

[0035] In order to reduce the wear of the motor components by the motor magnetic shoe fixing bracket, transition fillets are provided on the upper outer ring edge of the upper fixing ring 1 and the lower outer ring edge of the lower fixing ring 2.

[0036] Example 2

[0037] The difference from Example 1 is that the central angle α is 25°, at which time the volume of the magnetic tile is the largest.

[0038] Example 3

[0039] The difference from Example 1 is that the central angle α is 30°, at which time the volume of the magnetic tile is the smallest.

Claims

1. A motor magnetic shoe fixing bracket, comprising an upper fixing ring (1) and a lower fixing ring (2) coaxially arranged, characterized in that: Two connecting plates (3) are fixedly arranged between the upper fixing ring (1) and the lower fixing ring (2). The connecting plates (3) are arranged in coordination with the upper fixing ring (1) and the lower fixing ring (2). The two connecting plates (3) are symmetrically arranged. The cross section of the connecting plates (3) is a fan-shaped cross section. Two groups of mounting holes (4) are arranged on the upper fixing ring (1), and two groups of mounting holes (4) are arranged on the lower fixing ring (2). The mounting holes (4) on the upper fixing ring (1) penetrate the top surface and the bottom surface of the upper fixing ring (1), and the mounting holes (4) on the lower fixing ring (2) penetrate the top surface and the bottom surface of the lower fixing ring (2).

2. The motor magnetic shoe fixing bracket according to claim 1, characterized in that: The two groups of mounting holes (4) on the upper fixing ring (1) are arranged alternately with the connecting plate (3).

3. The motor magnetic shoe fixing bracket according to claim 1, characterized in that: The two groups of mounting holes (4) on the lower fixing ring (2) are arranged alternately with the connecting plate (3).

4. The motor magnetic shoe fixing bracket according to claim 1, characterized in that: The upper fixing ring (1) and the lower fixing ring (2) have the same structure.

5. The motor magnetic shoe fixing bracket according to claim 1, characterized in that: The two groups of mounting holes (4) on the upper fixing ring (1) are respectively arranged opposite to the two groups of mounting holes (4) on the lower fixing ring (2).

6. The motor magnetic shoe fixing bracket according to claim 1, characterized in that: Each group of mounting holes (4) comprises three mounting holes (4), and the three mounting holes (4) are arranged at intervals.

7. The motor magnetic shoe fixing bracket according to claim 6, characterized in that: The angle formed by the straight lines connecting the centres of two adjacent mounting holes (4) on the upper fixing ring (1) and the centre of the upper fixing ring (1) is 25-35°.

8. The motor magnetic shoe fixing bracket according to claim 1, characterized in that: The central angle corresponding to the fan-shaped cross section is α, and 25°≤α≤30°.

9. The motor magnetic shoe fixing bracket according to claim 8, characterized in that: α=28°。 10. The motor magnetic shoe fixing bracket according to claim 1, characterized in that: The upper fixing ring (1), the lower fixing ring (2) and the connecting plate (3) are all made of polycarbonate.

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