Protection structure for permanent magnet motor

Abstract

The utility model relates to the field of permanent magnet motors, and discloses a protection structure for a permanent magnet motor, which comprises a base, the top of the base is fixedly connected with a first protection shell, the top of the first protection shell is hermetically fitted with a second protection shell, and two sides of the bottom of the second protection shell are fixedly connected with second connecting plates. First connecting plates are fixedly connected to the two sides of the surface of the top of the first protective shell, the two first connecting plates and the two second connecting plates are attached to each other, screw holes are formed in the tops of the first connecting plates, and fixing screw rods are connected to the tops of the second connecting plates in a penetrating and threaded mode. According to the utility model, the use is simple, the steel belt, the rubber shock absorber and the buffer block are designed in sequence in multiple layers, the impact force can be gradually weakened to protect the permanent magnet motor, and the plurality of insertion rods are aligned with the plurality of insertion holes and inserted into the insertion holes to play a role in positioning during installation; therefore, butt joint installation of the first protective shell and the second protective shell can be directly and more accurately carried out.

Description

Technical Field

[0001] This utility model relates to the field of permanent magnet motors, specifically a protective structure for permanent magnet motors. Background Technology

[0002] A permanent magnet synchronous motor is a synchronous motor that uses permanent magnets to generate a magnetic field. The speed of its rotor is consistent with the current frequency of the stator winding. A permanent magnet synchronous motor consists of components such as a stator, a rotor, and end covers. The stator is basically the same as that of an ordinary induction motor. The rotor can be made solid and can use laminated armature windings, concentrated full-pitch windings, distributed short-pitch windings, or unconventional windings.

[0003] In the assembly of permanent magnet motor housings in the prior art, misalignment of the upper and lower housings can prevent the screws or bolts from being fully inserted. As a result, when the misaligned assembly is completed, the upper housing will protrude from the lower housing, thus causing incomplete assembly. Utility Model Content

[0004] The purpose of this invention is to provide a protective structure for permanent magnet motors to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a base, a first protective shell fixedly connected to the top of the base, a second protective shell sealed to the top of the first protective shell, second connecting plates fixedly connected to both sides of the bottom of the second protective shell, and first connecting plates fixedly connected to both sides of the top surface of the first protective shell. The two first connecting plates and the two second connecting plates are respectively fitted together. A screw hole is provided on the top of the first connecting plate, and a fixing screw is threaded through the top of the second connecting plate, with the fixing screw threaded into the screw hole. A rectangular hole is provided through one side of the second protective shell. A rectangular shell is fixedly connected to one side of the second protective shell, and the rectangular shell covers the rectangular hole. A semi-circular groove is provided on the side of the first and second protective shells that are in contact with each other. A mounting hole is provided on the top of the second protective shell. Multiple steel strips are arranged in an arc shape in the mounting hole, and the multiple steel strips are movably connected to each other by a rotating shaft. The two ends of the rotating shaft on both sides are rotatably connected to the inner walls of the two sides of the steel strips. Rubber shock absorbers are fixedly connected to the bottom of the multiple steel strips, and buffer blocks are fixedly connected to the bottom of the multiple rubber shock absorbers.

[0006] As a further improvement of this utility model: anti-collision rings are fixedly connected to both sides of the first protective shell and the second protective shell, and the upper and lower anti-collision rings fit together.

[0007] As a further improvement of this utility model: the top of the first connecting plate has two symmetrically opened insertion holes, and the bottom of the second connecting plate has two symmetrically fixedly connected insertion rods, with the two insertion rods respectively snapped into the two insertion holes.

[0008] As a further improvement of this utility model: a wear-resistant pad is fixedly embedded in the semi-circular groove, and two through holes are symmetrically opened on both sides of the first protective shell and the second protective shell.

[0009] As a further improvement of this utility model: the inner wall of the first protective shell is fixedly connected with a compression pad, and the two opposing semicircular grooves are circular.

[0010] As a further improvement of this utility model: both the first protective shell and the second protective shell are semi-circular structures, and both the first protective shell and the second protective shell are made of stainless steel.

[0011] As a further improvement of this utility model: shock-absorbing pads are fixedly connected to the four corners of the bottom of the base, and the first protective shell and the second protective shell are semi-circular spaces.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] Multiple plugs are aligned with multiple sockets and inserted into them to install the second protective housing on top of the first protective housing. Then, the fixing screws are threaded onto the first and second connecting plates. At this time, the fixing screws will thread-fix the first and second connecting plates together. During installation, the wiring can be arranged or stored in the second protective housing in advance. When the top of the second protective housing is impacted, it will first contact the steel strip for cushioning. The steel strip will also deform as a result, and the stress points will be dispersed. At this time, the rubber shock absorber under the steel strip will also be squeezed due to the impact and cushion again. Finally, the rubber shock absorber will press down the buffer block to further reduce the impact force and protect the permanent magnet motor.

[0014] This utility model is simple to use. The steel belt, rubber shock absorber, and buffer block are designed in multiple layers to gradually reduce the impact force and protect the permanent magnet motor. Multiple plug rods are aligned with multiple plug holes and inserted into them, which plays a positioning role during installation, so that the first protective shell and the second protective shell can be connected and installed more accurately. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the entire utility model;

[0016] Figure 2 This is a three-dimensional exploded view of the present invention;

[0017] Figure 3This is a partial three-dimensional schematic diagram of the base in this utility model;

[0018] Figure 4 This is a three-dimensional schematic diagram of the second protective shell in this utility model;

[0019] Figure 5 This is a three-dimensional schematic diagram of the first protective shell in this utility model;

[0020] Figure 6 This is a three-dimensional schematic diagram of the steel strip in this utility model.

[0021] In the diagram: 1. First protective shell; 2. Base; 3. Shock-absorbing pad; 4. First connecting plate; 5. Fixing screw; 6. Second connecting plate; 7. Anti-collision ring; 8. Through hole; 9. Wear-resistant pad; 10. Second protective shell; 11. Insert rod; 12. Rectangular shell; 13. Semi-circular groove; 14. Screw hole; 15. Insertion hole; 16. Extrusion pad; 17. Rectangular hole; 18. Steel strip; 19. Buffer block; 20. Rubber shock absorber; 21. Mounting hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-6In this embodiment of the present invention, a protective structure for a permanent magnet motor includes a base 2. A first protective shell 1 is fixedly connected to the top of the base 2. A second protective shell 10 is sealed and fitted to the top of the first protective shell 1. Second connecting plates 6 are fixedly connected to both sides of the bottom of the second protective shell 10, and first connecting plates 4 are fixedly connected to both sides of the top surface of the first protective shell 1. The two first connecting plates 4 and the two second connecting plates 6 are respectively fitted together. A screw hole 14 is provided on the top of the first connecting plate 4. A fixing screw 5 is threaded through the top of the second connecting plate 6, and the fixing screw 5 is threaded through the screw hole 14. A rectangular hole 17 is provided through one side of the second protective shell 10. A rectangular shell 12 is fixedly connected to one side of the second protective shell 10, and the rectangular shell 12 covers the rectangular hole 17. The first protective shell 1 and the second protective shell 10 are connected to each other. A semi-circular groove 13 is provided on the side of the outer shell 10 that is in contact with the inner shell. A mounting hole 21 is provided on the top of the second protective shell 10. Multiple steel strips 18 are arranged in an arc shape in the mounting hole 21 and are movably connected to each other by a rotating shaft. The two ends of the rotating shaft on both sides are rotatably connected to the inner walls of the two sides of the steel strip 18. Rubber shock absorbers 20 are fixedly connected to the bottom of the multiple steel strips 18, and buffer blocks 19 are fixedly connected to the bottom of the multiple rubber shock absorbers 20. When the top of the second protective shell 10 is impacted, it will first contact the steel strips 18 for cushioning. The steel strips 18 will also deform as a result, and the stress points will be dispersed. At this time, the rubber shock absorbers 20 below the steel strips 18 will also be squeezed by the impact and cushion again. Finally, the rubber shock absorbers 20 will press down on the buffer blocks 19 to further reduce the impact force and protect the permanent magnet motor from the impact force.

[0024] In this embodiment, anti-collision rings 7 are fixedly connected to both sides of the first protective shell 1 and the second protective shell 10, and the upper and lower anti-collision rings 7 are fitted together.

[0025] In this embodiment, the top of the first connecting plate 4 has two symmetrically opened insertion holes 15, and the bottom of the second connecting plate 6 has two symmetrically fixedly connected insertion rods 11, and the two insertion rods 11 are respectively snapped into the two insertion holes 15.

[0026] In this embodiment, a wear-resistant pad 9 is fixedly embedded in the semi-circular groove 13. Two through holes 8 are symmetrically opened on both sides of the first protective shell 1 and the second protective shell 10. The permanent magnet motor can be placed in the first protective shell 1. Then, by inserting screws into the two through holes 8 on the back of the first protective shell 1 to enter the permanent magnet motor, the lower part of the permanent magnet motor can be fixed. At this time, the permanent magnet motor will be fixed in the first protective shell 1. The output shaft of the permanent magnet motor can pass through the semi-circular groove 13 and extend out of the first protective shell 1. Similarly, screws can be inserted into the two through holes 8 on the second protective shell 10 to enter the permanent magnet motor and fix the upper part of the permanent magnet motor.

[0027] In this embodiment, the inner wall of the first protective shell 1 is fixedly connected with a compression pad 16, and the two opposing semi-circular grooves 13 are circular. The compression pad 16 can wrap around the outer wall of the permanent magnet motor for fixation and can reduce the impact of shaking and impact on the permanent magnet motor. The power wire of the permanent magnet motor can extend from the rectangular hole 17 to the outside of the rectangular shell 12.

[0028] In this embodiment, both the first protective shell 1 and the second protective shell 10 are semi-circular structures, and both the first protective shell 1 and the second protective shell 10 are made of stainless steel.

[0029] In this embodiment, shock-absorbing pads 3 are fixedly connected to the four bottom corners of the base 2, and the first protective shell 1 and the second protective shell 10 are semi-circular spaces.

[0030] The working principle of this utility model is as follows: The permanent magnet motor can be placed inside the first protective housing 1. Then, by inserting screws into the two through holes 8 on the back of the first protective housing 1 to enter the permanent magnet motor, the lower part of the permanent magnet motor can be fixed. At this time, the permanent magnet motor will be fixed inside the first protective housing 1. The output shaft of the permanent magnet motor can extend out of the first protective housing 1 through the semi-circular groove 13. Then, multiple plug rods 11 are aligned with multiple plug holes 15 and inserted into them to install the second protective housing 10 on the top of the first protective housing 1. Then, the fixing screw 5 is threaded onto the first connecting plate 4 and the second connecting plate 6. At this time, the fixing screw 5 will thread-fix the first connecting plate 4 and the second connecting plate 6 for combination. During installation, the wiring can be arranged or stored inside the second protective housing 10 in advance. The compression pad 16 can wrap around the outer wall of the permanent magnet motor for fixation and can reduce the impact of shaking and impact on the permanent magnet motor. The power wire of the permanent magnet motor can extend out from the rectangular hole 17 to the outside of the rectangular housing 12. When the permanent magnet motor is powered on, the top of the second protective housing 10 will first contact the steel strip 18 for cushioning when impacted. The steel strip 18 will also deform and the stress points will be dispersed. At this time, the rubber shock absorber 20 below the steel strip 18 will also be squeezed by the impact and cushioned again. Finally, the rubber shock absorber 20 will press down on the buffer block 19 to further reduce the impact force and protect the permanent magnet motor. The multiple buffer blocks 19 can fit against the top surface of the permanent magnet motor during installation. At this time, the steel strip 18 can be rotated by the rotating shaft to adapt to the curvature of the top surface of the permanent magnet motor, so as to fit it better. The shock-absorbing pad 3 is used to contact the ground and can play a shock-absorbing role when the permanent magnet motor vibrates during operation. Screws can also be inserted into the two through holes 8 on the second protective housing 10 to fix the upper part of the permanent magnet motor. This operation can also be performed on the through holes 8 on both sides of the first protective housing 1 and the second protective housing 10. At this time, the permanent magnet motor will be fixed at the four corners, so that the installed permanent magnet motor can be completely fixed.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A protective structure for permanent magnet electric machines, comprising a base (2), characterized in that: The top of the base (2) is fixedly connected with a first protective shell (1), the top of the first protective shell (1) is sealingly attached with a second protective shell (10), the bottom of the second protective shell (10) is fixedly connected with a second connecting plate (6) on both sides, and the top surface of the first protective shell (1) is fixedly connected with a first connecting plate (4) on both sides, the two first connecting plates (4) and the two second connecting plates (6) are attached to each other, the top of the first connecting plate (4) is provided with a threaded hole (14), the top of the second connecting plate (6) penetrates and is threadedly connected with a fixed screw rod (5), and the fixed screw rod (5) is threadedly connected with the threaded hole (14), a rectangular hole (17) is formed in one side of the second protective shell (10), a rectangular shell (12) is fixedly connected to one side of the second protective shell (10), and the rectangular shell (12) covers the rectangular hole (17) inside, the side of the first protective shell (1) and the second protective shell (10) is provided with a semicircular groove (13), the top of the second protective shell (10) is provided with a mounting hole (21), a plurality of steel belts (18) are arranged in an arc shape in the mounting hole (21), and the plurality of steel belts (18) are movably connected through rotating shafts, the two ends of the rotating shafts on both sides are rotatably connected with the inner walls of the steel belts (18) on both sides, the bottoms of the plurality of steel belts (18) are fixedly connected with rubber shock absorbers (20), and the bottoms of the plurality of rubber shock absorbers (20) are fixedly connected with buffer blocks (19).

2. The protective structure for a permanent magnet motor according to claim 1, characterized in that: The two sides of the first protective shell (1) and the second protective shell (10) are fixedly connected with anti-collision rings (7), and the upper and lower anti-collision rings (7) are attached to each other.

3. The protective structure for a permanent magnet motor according to claim 1, characterized in that: The top of the first connecting plate (4) is symmetrically provided with two insertion holes (15), and the bottom of the second connecting plate (6) is symmetrically fixedly connected with two insertion rods (11), and the two insertion rods (11) are respectively clamped in the two insertion holes (15).

4. The protective structure for a permanent magnet motor according to claim 1, characterized in that: The semicircular groove (13) is fixedly embedded with a wear-resistant pad (9), and the two sides of the first protective shell (1) and the second protective shell (10) are symmetrically and throughly provided with two through holes (8).

5. The protective structure for permanent magnet machines according to claim 1, characterized in that: The inner wall of the first protective shell (1) is fixedly connected with an extrusion pad (16), and the semicircular grooves (13) are circular.

6. The protective structure for a permanent magnet motor according to claim 1, characterized in that: The first protective shell (1) and the second protective shell (10) are semicircular structures, and the first protective shell (1) and the second protective shell (10) are made of stainless steel.

7. The protective structure for a permanent magnet motor according to claim 1, characterized in that: The bottom of the base (2) is fixedly connected with a shock pad (3) at four corners, and the first protective shell (1) and the second protective shell (10) are semicircular spaces.

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