Dustproof device for bipolar multiphase permanent magnet synchronous motor

Abstract

The utility model discloses a dustproof device for a bipolar multi-phase permanent magnet synchronous motor, which relates to the technical field of permanent magnet synchronous motor dust prevention and comprises a dustproof cover, one end of the dustproof cover is connected with a movable plate, the other side of the movable plate is provided with a movable cover, one side of the movable plate is connected with a telescopic inner rod, and the telescopic inner rod is connected with a telescopic outer rod. The other end of the telescopic inner rod is sleeved with a telescopic outer rod, and the other end of the telescopic outer rod is connected with a motor. According to the device, through the arrangement of the movable cover, the movable plate, the sliding column and the reserved groove, after people start the motor, the output shaft of the motor rotates, a part can be driven to conduct machining operation on a machined part, chippings generated in the machining process are likely to splash to the connecting position of the movable cover and the output shaft, and the chippings are prevented from falling off along with rotation of the output shaft; and the sliding columns can be driven to move left and right along the inner side of the reserved groove, so that the chippings are conveniently pushed, and centrifugal force is generated under the action of the output shaft which rotates quickly, so that the chippings are centrifuged until the chippings fall off.

Description

Technical Field

[0001] The utility model relates to the technical field of dust prevention of permanent magnet synchronous motors, in particular to a dust prevention device for bipolar multi-phase permanent magnet synchronous motors. Background Art

[0002] With the development of science and technology and the progress of the times, permanent magnet motors use permanent magnet materials, do not require reactive excitation current, reduce stator current and loss, have higher power factor and efficiency, and the efficiency of permanent magnet synchronous motors can be 6% higher than that of AC induction motors. The air gap magnetic density of permanent magnet motors can be greatly improved, and the motor indicators can be optimally designed, making the motor smaller and lighter. In addition, dust often occurs during the use of permanent magnet synchronous motors, causing them to jam, so dustproof devices are required to prevent dust in areas prone to jamming.

[0003] The existing dust prevention device of the permanent magnet synchronous motor is mainly used to prevent dust from occurring at the motor and the output shaft to which it is connected during use. However, when the motor is working, debris may still fly to the connection between the output shaft and the motor, causing a jamming phenomenon and affecting the use effect of the permanent magnet synchronous motor. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the existing dust-proof device of the permanent magnet synchronous motor mainly performs dust-proof operation on the output shaft connected to the motor during use, but when the motor is working, debris will still splash to the connection between the output shaft and the motor, causing a jamming phenomenon, which affects the use effect of the permanent magnet synchronous motor. A dust-proof device for a bipolar multi-phase permanent magnet synchronous motor is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A dust prevention device for a bipolar multiphase permanent magnet synchronous motor, comprising:

[0007] A dust cover, one end of the dust cover is connected to a movable plate, and a movable cover is installed on the other side of the movable plate, one side of the movable plate is connected to a telescopic inner rod, and the other end of the telescopic inner rod is sleeved with a telescopic outer rod, the other end of the telescopic outer rod is connected to a motor, and the end of the motor is connected to an output shaft, the outer wall of the output shaft is provided with a reserved groove, and the inner side of the reserved groove is slidably connected with a sliding column, and the sliding column and the movable cover are fixedly connected.

[0008] Preferably, a first sliding rod is connected to one side of the top end of the inner wall of the dust cover, and the first sliding rod is slidably connected to the motor.

[0009] Preferably, the telescopic inner rod and the telescopic outer rod are slidably connected, and the telescopic inner rod and one side of the movable plate are vertically distributed.

[0010] Preferably, the bottom of the motor is connected to a base, and a slide groove is opened on the inner side of the base, a spring is installed on the inner side of the slide groove, and one end of the spring is connected to a slider, a second slide rod is fixed to the top of the slider, and the top end of the second slide rod is connected to the dust cover.

[0011] Preferably, the reserved groove is composed of a straight groove and an S-shaped groove, and the reserved groove forms an integrated structure with the output shaft through slotting.

[0012] Preferably, the slider forms an elastic structure with the base through a spring, and the slider is slidably connected to the slide groove.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0014] 1. In the utility model, by setting the movable cover, movable plate, sliding column and reserved groove, after people start the motor, its output shaft rotates, which can drive the components to perform processing operations on the processed parts. The debris generated during the process is easy to splash to the connection between the movable cover and the output shaft. With the rotation of the output shaft, the sliding column can be driven to move to the left and right sides along the inner side of the reserved groove, which is convenient for pushing the debris. Under the action of the rapidly rotating output shaft, centrifugal force is generated to complete the centrifugal work of the debris until it falls. In addition, the movable cover, movable plate and dust cover can shield the connection between the motor and the output shaft to achieve the purpose of dust prevention. 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 reserved groove structure in the utility model;

[0017] Figure 3 It is a schematic diagram of the enlarged structure of point A in the utility model.

[0018] Legend:

[0019] 1. Dust cover; 2. Movable plate; 3. Movable cover; 4. First slide bar; 5. Telescopic inner rod; 6. Telescopic outer rod; 7. Motor; 8. Output shaft; 9. Base; 10. Reserved groove; 11. Sliding column; 12. Second slide bar; 13. Sliding block; 14. Sliding groove; 15. Spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Reference Figure 1-3 A dustproof device for a bipolar multiphase permanent magnet synchronous motor comprises a dust cover 1, one end of the dust cover 1 is connected to a movable plate 2, and a movable cover 3 is installed on the other side of the movable plate 2, a telescopic inner rod 5 is connected to one side of the movable plate 2, and a telescopic outer rod 6 is sleeved on the other end of the telescopic inner rod 5, the telescopic inner rod 5 and the telescopic outer rod 6 are slidably connected, and the telescopic inner rod 5 and one side of the movable plate 2 are vertically distributed, and the telescopic inner rod 5 can move synchronously along the inner side of the telescopic outer rod 6 when the movable plate 2 moves, so as to effectively guide the movable plate 2 and the movable cover 3. For the purpose of operation, the other end of the telescopic outer rod 6 is connected to a motor 7, and the end of the motor 7 is connected to an output shaft 8. A reserved groove 10 is provided on the outer wall of the output shaft 8, and a slide column 11 is slidably connected to the inner side of the reserved groove 10. The reserved groove 10 is composed of a straight groove and an S-shaped groove, and the reserved groove 10 forms an integrated structure with the output shaft 8 through the groove. When the output shaft 8 rotates, the slide column 11 can move along the S-shaped groove area of ​​the reserved groove 10 to complete the pushing operation of the debris, and it is not easy for the debris to be stuck at the connection between the output shaft 8 and the movable cover 3. The slide column 11 and the movable cover 3 are fixedly connected;

[0022] A first slide bar 4 is connected to one side of the top end of the inner wall of the dust cover 1, and the first slide bar 4 is slidably connected to the motor 7. By setting the first slide bar 4, it can follow the dust cover 1 to move left and right, and the first slide bar 4 and the motor 7 are slidably connected, so that the shielding work between the dust cover 1 and the motor 7 can be effectively completed. The bottom of the motor 7 is connected to a base 9, and a slide groove 14 is provided on the inner side of the base 9. A spring 15 is installed on the inner side of the slide groove 14, and a slider 13 is connected to one end of the spring 15. A second slide bar 12 is fixed to the top of the slider 13, and the top end of the second slide bar 12 is connected to the dust cover 1. The slider 13 forms an elastic structure with the base 9 through the spring 15, and the slider 13 and the slide groove 14 are slidably connected. When the slide column 11 is in the linear groove inside the reserved groove 10, it can drive the movable plate 2, the dust cover 1, and the movable cover 3 to perform a reset operation under the action of the reset force of the spring 15.

[0023] Working principle: When in use, the staff first starts the motor 7, so that it drives the output shaft 8 to rotate and drives the components connected to the output shaft 8 to work. During this period, the slide column 11 can move along the S-shaped groove area of ​​the reserved groove 10 to complete the pushing operation of the debris. It is not easy for the debris to be stuck in the connection between the output shaft 8 and the movable cover 3, and the movable cover 3, the movable plate 2, and the dust cover 1 move to one side under the action of the first slide bar 4 and the second slide bar 12. Subsequently, the slide column 11 moves to the straight groove area of ​​the reserved groove 10, and under the action of the reset force of the spring 15, the movable plate 2, the dust cover 1, and the movable cover 3 are driven to perform a reset operation, so that the dustproof device composed of the movable plate 2, the dust cover 1, and the movable cover 3 can effectively play the purpose of dustproof work for the connection between the output shaft 8 and the motor 7.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dust prevention device for a bipolar multiphase permanent magnet synchronous motor, comprising: A dust cover (1) is characterized in that: one end of the dust cover (1) is connected to a movable plate (2), and a movable cover (3) is installed on the other side of the movable plate (2); one side of the movable plate (2) is connected to a telescopic inner rod (5), and the other end of the telescopic inner rod (5) is sleeved with a telescopic outer rod (6); the other end of the telescopic outer rod (6) is connected to a motor (7), and the end of the motor (7) is connected to an output shaft (8); a reserved groove (10) is provided on the outer wall of the output shaft (8), and a sliding column (11) is slidably connected to the inner side of the reserved groove (10), and the sliding column (11) and the movable cover (3) are fixedly connected.

2. The dust prevention device for a bipolar multiphase permanent magnet synchronous motor according to claim 1, characterized in that: A first sliding rod (4) is connected to one side of the top end of the inner wall of the dust cover (1), and the first sliding rod (4) is slidably connected to the motor (7).

3. The dust prevention device for a bipolar multiphase permanent magnet synchronous motor according to claim 1, characterized in that: The telescopic inner rod (5) and the telescopic outer rod (6) are slidably connected, and the telescopic inner rod (5) and one side of the movable plate (2) are vertically distributed.

4. The dust prevention device for a bipolar multi-phase permanent magnet synchronous motor according to claim 1, characterized in that: The bottom of the motor (7) is connected to a base (9), and a slide groove (14) is provided on the inner side of the base (9). A spring (15) is installed on the inner side of the slide groove (14), and one end of the spring (15) is connected to a slider (13). A second slide rod (12) is fixed to the top of the slider (13), and the top end of the second slide rod (12) is connected to the dust cover (1).

5. The dust prevention device for a bipolar multi-phase permanent magnet synchronous motor according to claim 1, characterized in that: The reserved groove (10) is composed of a straight groove and an S-shaped groove, and the reserved groove (10) forms an integrated structure with the output shaft (8) through slotting.

6. The dust prevention device for a bipolar multiphase permanent magnet synchronous motor according to claim 4, characterized in that: The slider (13) forms an elastic structure with the base (9) through a spring (15), and the slider (13) and the slide groove (14) are slidably connected.

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