Stable supporting structure of self-balancing magnetic suspension main shaft

Abstract

The utility model relates to the technical field of magnetic suspension spindles, and discloses a self-balancing magnetic suspension spindle stable supporting structure which comprises a shell, a spindle, a stator and a flange plate, an adjusting mechanism and a protection mechanism are arranged on the two sides in the shell respectively, the adjusting mechanism comprises a threaded rod, and one end of the threaded rod penetrates through the outer wall of the shell and is connected with a fixing frame. A first magnet and a fourth magnet are arranged on the two sides of the inner wall of the fixing frame correspondingly, a fixing sleeve is arranged on the outer wall of one end of the main shaft and corresponds to the fixing frame in a sleeving mode, and a second magnet and a third magnet are arranged on the outer wall of the fixing sleeve in a sleeving mode. According to the device, the magnet can be adjusted according to the thickness of the internal main shaft through the adjusting mechanism, so that the device can be suitable for main shafts with different thicknesses, the use flexibility of the device is improved, and the main shaft can be protected through the protection mechanism when the main shaft falls off, so that the main shaft is prevented from being damaged due to collision with the balls; and the service life of the spindle is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of magnetic levitation spindle technology, and in particular to a stable support structure for a self-balancing magnetic levitation spindle. Background Technology

[0002] As a high-tech product in the field of mechatronics, the magnetic levitation spindle achieves contactless levitation and drive of the spindle through electromagnetic force, which has advantages that traditional bearings cannot match. However, the existing support structure is supported by a combination of electromagnets and permanent magnets. For spindles of different thicknesses, the magnets need to be replaced accordingly, which is quite troublesome. At the same time, when the spindle rotates at high speed, it may detach and collide with the ball bearings. Long-term use will cause damage to the spindle and ball bearings, thus affecting its use.

[0003] Therefore, those skilled in the art have provided a self-balancing magnetic levitation main shaft stabilization support structure to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a self-balancing magnetic levitation spindle stabilization support structure. Through an adjustment mechanism, the magnets can be adjusted according to the thickness of the internal spindle, thus making it suitable for spindles of different thicknesses and improving the flexibility of the device. Furthermore, the protective mechanism can protect the spindle in the event of detachment, preventing it from colliding with the balls and causing damage, thereby extending the service life of the spindle.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The self-balancing magnetic levitation spindle stabilization support structure includes a housing, a spindle, a stator, and a flange. An adjustment mechanism and a protection mechanism are respectively provided on both sides inside the housing.

[0007] The adjustment mechanism includes a threaded rod, one end of which passes through the outer wall of the outer shell and is connected to a fixed frame. A first magnet and a fourth magnet are respectively provided on both sides of the inner wall of the fixed frame. A fixed sleeve is fitted on the outer wall of one end of the main shaft at a position corresponding to the fixed frame. A second magnet and a third magnet are fitted on the outer wall of the fixed sleeve.

[0008] The protection mechanism includes a motor, the output end of which is connected to a turntable. The turntable is rotatably connected to the inner wall of the outer shell. The outer wall of the turntable is provided with multiple limiting grooves. Each of the multiple limiting grooves is slidably connected to a limiting rod. One end of each of the multiple limiting rods is connected to a first clamping plate. One side of the outer wall of the first clamping plate is provided with multiple springs. The other end of each of the multiple springs is connected to a second clamping plate.

[0009] Through the above technical solution, the magnet can be adjusted according to the thickness of the internal spindle by the setting adjustment mechanism, so that it can be used for spindles of different thicknesses, improving the flexibility of the device. Furthermore, the setting protection mechanism can protect the spindle when it falls off, thereby preventing it from colliding with the balls and causing damage, and thus extending the service life of the spindle.

[0010] Furthermore, a plurality of threaded rods are provided at one end of the outer wall of the outer casing, and the threaded rods are threadedly connected to the outer wall of the outer casing;

[0011] The height of the fixed frame can be adjusted by rotating the threaded rod using the above technical solution.

[0012] Furthermore, a fixing plate is provided on one end of the outer wall of the outer shell at a position corresponding to the threaded rod, a scale is provided on the outer wall of the fixing plate, and a fixing rod is provided on one side of the outer wall of the fixing frame, with the fixing rod and the scale cooperating with each other;

[0013] Through the above technical solution, the fixed frame can be adjusted to an accurate height by the cooperation between the set scale and the fixed rod, thus making it suitable for different spindles.

[0014] Furthermore, a level sensor is installed in the middle of the turntable;

[0015] The above technical solution allows the installation of a horizontal sensor to monitor whether the spindle is in a horizontal position. If the spindle falls, the signal is transmitted to the motor via the controller, which then limits the spindle and protects it.

[0016] Furthermore, a fifth magnet is provided on one side inside the outer casing. The fifth magnet and the main shaft cooperate with each other. A screw is threadedly connected to the upper end of the fifth magnet, and the screw is threadedly connected to the outer casing.

[0017] The above technical solution provides radial support for the spindle.

[0018] Furthermore, the magnetic properties of the upper and lower ends of the first magnet and the fourth magnet are opposite;

[0019] The above technical solution involves the second and third magnets working together.

[0020] Furthermore, the magnetism between the second magnet and the third magnet is opposite, and the magnetism at the upper ends of the second magnet and the third magnet is the same as that between the first magnet and the fourth magnet, respectively.

[0021] Through the above technical solution, the second and third magnets cooperate with the first and fourth magnets respectively, thereby providing lateral support for the main shaft.

[0022] Furthermore, the protective mechanism is fixed to the outer wall of the housing via a flange;

[0023] The above technical solution allows the protection mechanism to be disassembled, allowing for the replacement of different fifth magnets to fit different spindles.

[0024] This utility model has the following beneficial effects:

[0025] 1. The self-balancing magnetic levitation spindle stabilization support structure proposed in this utility model, through the cooperation of multiple threaded rods, a scale, and a fixed rod, allows the fixed frame to be adjusted to an accurate height. This enables it to adapt to the second and third magnets on the outer wall of different spindles, thus providing lateral support for the spindle. At the same time, the fifth magnet inside the outer shell provides radial support for the spindle. Through the set adjustment mechanism, the magnets can be adjusted according to the thickness of the internal spindle, making it suitable for spindles of different thicknesses and improving the flexibility of the device.

[0026] 2. The self-balancing magnetic levitation spindle stabilization support structure proposed in this utility model can monitor whether the spindle is in a horizontal position through the set horizontal sensor. If the spindle falls, it can be clamped by the cooperation of the motor and multiple clamping plates. At the same time, the spring set between the first clamping plate and the second clamping plate can prevent excessive clamping force from damaging the spindle. Through the set protective mechanism, the spindle can be protected when it falls, thereby preventing it from colliding with the ball bearings and causing damage, thus extending the service life of the spindle. Attached Figure Description

[0027] Figure 1 This is an isometric view of the self-balancing magnetic levitation main shaft stabilization support structure proposed in this utility model;

[0028] Figure 2 This is a cross-sectional view of the self-balancing magnetic levitation main shaft stabilization support structure proposed in this utility model;

[0029] Figure 3 This is a schematic diagram of the internal structure of the self-balancing magnetic levitation main shaft stabilization support structure proposed in this utility model.

[0030] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0031] Figure 5 for Figure 2 Enlarged view of point B in the middle.

[0032] Legend:

[0033] 1. Adjustment mechanism; 101. Threaded rod; 102. Fixing frame; 103. Fixing sleeve; 104. First magnet; 105. Second magnet; 106. Third magnet; 107. Fourth magnet; 2. Protection mechanism; 201. Motor; 202. First clamping plate; 203. Limiting rod; 204. Limiting groove; 205. Turntable; 206. Second clamping plate; 207. Spring; 3. Housing; 4. Main shaft; 5. Screw; 6. Stator; 7. Fifth magnet; 8. Fixing plate; 9. Scale; 10. Fixing rod; 11. Horizontal sensor; 12. Flange. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Reference Figure 1 , Figure 2 and Figure 4 The present invention provides a specific embodiment of a self-balancing magnetic levitation main shaft stabilization support structure, including a housing 3, a main shaft 4, a stator 6 and a flange 12. An adjustment mechanism 1 and a protection mechanism 2 are respectively provided on both sides inside the housing 3.

[0036] The adjustment mechanism 1 includes a threaded rod 101, one end of which passes through the outer wall of the outer casing 3 and is connected to a fixing frame 102. A first magnet 104 and a fourth magnet 107 are respectively arranged on both sides of the inner wall of the fixing frame 102. A fixing sleeve 103 is fitted onto the outer wall of one end of the main shaft 4 at a position corresponding to the fixing frame 102. A second magnet 105 and a third magnet 106 are fitted onto the outer wall of the fixing sleeve 103. Through the adjustment mechanism 1, the magnets can be adjusted according to the thickness of the internal main shaft 4, thus adapting to main shafts 4 of different thicknesses and improving the flexibility of the device. Multiple threaded rods 101 are provided at one end of the outer wall of the outer casing 3, and the threaded rods 101 are threadedly connected to the outer wall of the outer casing 3. The height of the fixing frame 102 can be adjusted by rotating the threaded rods 101. A fixing plate 8 is provided at one end of the outer wall of the outer casing 3 at a position corresponding to the threaded rods 101. A scale 9 is provided on the outer wall of the fixing plate 8. A fixing rod 10 is provided on one side of the outer wall of the fixing frame 102. The fixing rod 10 and... The scales 9 work together to adjust the fixed frame 102 to a precise height, making it suitable for different spindles 4. A fifth magnet 7 is located on one side inside the housing 3. The fifth magnet 7 works with the spindle 4. A screw 5 is threaded onto the upper end of the fifth magnet 7, and the screw 5 is threaded onto the housing 3 to provide radial support for the spindle 4. The magnetic properties of the first magnet 104 and the fourth magnet 107 are opposite at their upper and lower ends, and they work with the second magnet 105 and the third magnet 106. The magnetic properties of the second magnet 105 and the third magnet 106 are opposite, and the magnetic properties of the upper ends of the second magnet 105 and the third magnet 106 are the same as those of the first magnet 104 and the fourth magnet 107. Through the cooperation of the second magnet 105 and the third magnet 106 with the first magnet 104 and the fourth magnet 107, the spindle 4 can be provided with lateral support.

[0037] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5The protection mechanism 2 includes a motor 201, the output end of which is connected to a turntable 205. The turntable 205 is rotatably connected to the inner wall of the outer casing 3. Multiple limiting grooves 204 are provided on the outer wall of the turntable 205. Limiting rods 203 are slidably connected inside each of the multiple limiting grooves 204. One end of each of the multiple limiting rods 203 is connected to a first clamping plate 202. Multiple springs 207 are provided on one side of the outer wall of the first clamping plate 202. The other end of each of the multiple springs 207 is connected to a second clamping plate 206. Through the protection mechanism 2, the main shaft 4 can be protected when it detaches. The protection mechanism 2 is fixed to the outer wall of the housing 3 by the flange 12. The protection mechanism 2 can be disassembled to replace different fifth magnets 7 to adapt to different spindles 4.

[0038] Working principle: When adjusting according to different spindles 4, the fixed frame 102 is moved by rotating the threaded rod 101. Then, according to the specific thickness of the spindle 4, the distance between the first magnet 104 and the fourth magnet 107 and the second magnet 105 and the third magnet 106 is calculated and observed through the scale 9. Then, the fixed frame 102 is adjusted to the accurate position by adjusting the position of the fixed rod 10, thereby providing lateral support for the spindle 4. When the spindle 4 rotates at high speed, the horizontal sensor 11 monitors the spindle 4. When the spindle 4 falls off, the horizontal sensor 11 transmits the signal to the motor 201 through the controller. The motor 201 drives the turntable 205 to rotate, thereby causing the limit rod 203 to slide inside the limit groove 204, thereby driving the first clamping plate 202 to move, and thus fixing the spindle 4 with multiple first clamping plates 202.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-balancing magnetic levitation main shaft stabilization support structure, comprising a housing (3), a main shaft (4), a stator (6), and a flange (12), characterized in that: An adjustment mechanism (1) and a protection mechanism (2) are respectively provided on both sides inside the outer shell (3); The adjustment mechanism (1) includes a threaded rod (101), one end of which passes through the outer wall of the outer shell (3) and is connected to a fixed frame (102). A first magnet (104) and a fourth magnet (107) are respectively provided on both sides of the inner wall of the fixed frame (102). A fixed sleeve (103) is fitted on the outer wall of one end of the main shaft (4) at a position corresponding to the fixed frame (102). A second magnet (105) and a third magnet (106) are fitted on the outer wall of the fixed sleeve (103). The protection mechanism (2) includes a motor (201), the output end of which is connected to a turntable (205). The turntable (205) is rotatably connected to the inner wall of the outer shell (3). The outer wall of the turntable (205) is provided with multiple limiting grooves (204). Each of the multiple limiting grooves (204) is slidably connected to a limiting rod (203). One end of each of the multiple limiting rods (203) is connected to a first clamping plate (202). One side of the outer wall of the first clamping plate (202) is provided with multiple springs (207). The other end of each of the multiple springs (207) is connected to a second clamping plate (206).

2. The self-balancing magnetic levitation main shaft stabilization support structure according to claim 1, characterized in that: The outer wall of the outer shell (3) is provided with a plurality of threaded rods (101) at one end, and the threaded rods (101) are threadedly connected to the outer wall of the outer shell (3).

3. The self-balancing magnetic levitation main shaft stabilization support structure according to claim 1, characterized in that: A fixing plate (8) is provided on one end of the outer wall of the outer shell (3) at a position corresponding to the threaded rod (101). A scale (9) is provided on the outer wall of the fixing plate (8). A fixing rod (10) is provided on one side of the outer wall of the fixing frame (102). The fixing rod (10) and the scale (9) cooperate with each other.

4. The self-balancing magnetic levitation main shaft stabilization support structure according to claim 1, characterized in that: A horizontal sensor (11) is provided in the middle of the turntable (205).

5. The self-balancing magnetic levitation main shaft stabilization support structure according to claim 1, characterized in that: A fifth magnet (7) is provided on one side inside the outer casing (3). The fifth magnet (7) and the main shaft (4) cooperate with each other. A screw (5) is threadedly connected to the upper end of the fifth magnet (7). The screw (5) and the outer casing (3) are threadedly connected.

6. The self-balancing magnetic levitation main shaft stabilization support structure according to claim 1, characterized in that: The magnetic properties of the first magnet (104) and the fourth magnet (107) are opposite at their upper and lower ends.

7. The self-balancing magnetic levitation main shaft stabilization support structure according to claim 1, characterized in that: The second magnet (105) and the third magnet (106) have opposite magnetic properties, and the magnetic properties of the upper ends of the second magnet (105) and the third magnet (106) are the same as those between the first magnet (104) and the fourth magnet (107).

8. The self-balancing magnetic levitation main shaft stabilization support structure according to claim 1, characterized in that: The protective mechanism (2) is fixed to the outer wall of the outer casing (3) by a flange (12).

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