Plug-in permanent magnet transmission speed regulator

Abstract

This utility model discloses an insert-type permanent magnet drive speed regulator, including a drive component, a cleaning component, a permanent magnet speed regulator, a reversing component, and a motor. The core component, the permanent magnet speed regulator, is fixedly installed. The motor is slidably connected to the drive component via a base and is located on one side of the permanent magnet speed regulator. The drive component can drive the motor to reciprocate relative to the permanent magnet speed regulator along the axial direction, thereby precisely adjusting the air gap between the two to achieve speed regulation. Through the setting of the cleaning component, the brush on the cleaning component can clean the dust screen set outside the conductor disk. The cleaning component is driven by the original motor of the speed regulation system, saving hardware costs. A mechanical push-block clutch replaces the electromagnetic clutch, avoiding the failure of electronic components in the dusty environment and reducing the failure rate. The axial linear movement of the brush ring can reduce the structural stress of the dust screen compared with traditional rotary cleaning, extending its life. During cleaning, the idle power of the motor in the standby state of the permanent magnet speed regulator is reused, and the energy consumption is close to zero, reducing costs.

Description

Technical Field

[0001] This utility model relates to the field of medical permanent magnet drive speed regulator technology, specifically an insert-type permanent magnet drive speed regulator. Background Technology

[0002] In permanent magnet drive speed controllers, adding an extra drive motor to the cleaning component essentially introduces a new systemic and global problem in order to solve a localized issue (dust prevention and cleaning). It significantly increases system complexity, cost, size, and energy consumption, while reducing reliability, maintenance convenience, and overall energy efficiency, contradicting its inherent core advantages of simple structure and easy maintenance. Therefore, how to achieve efficient and reliable self-cleaning or low-maintenance dust prevention design without relying on an additional power source is indeed the core challenge and a crucial area for innovation in this technology. An ideal solution should focus on utilizing the motion and magnetic field energy of the main drive itself or passive structural design to achieve the cleaning function, thereby avoiding the many drawbacks of adding an extra drive source.

[0003] The existing cleaning components installed on permanent magnet speed controllers typically require an additional drive motor for power, which undoubtedly increases the complexity, manufacturing cost, and potential failure points of the entire speed controller system. The additional motor means higher procurement costs, installation space requirements, additional energy consumption, and potentially increased maintenance workload in the future. For cost-sensitive or space-constrained applications, this to some extent weakens the advantages of the relatively simple structure and convenient maintenance of the permanent magnet speed controller itself.

[0004] How to effectively avoid the increased costs and complexity caused by adding an extra drive source while maintaining or even enhancing the dust prevention and cleaning effect has become an urgent direction for optimization and innovation in the current development of plug-in permanent magnet drive speed controller technology.

[0005] Therefore, an insertion-type permanent magnet drive speed regulator is proposed. Utility Model Content

[0006] The present invention aims to overcome the problem in the prior art of how to effectively avoid the increased cost and complexity caused by adding an additional drive source while maintaining or even enhancing the dustproof and cleaning effect.

[0007] An insert-type permanent magnet drive speed controller is proposed, comprising a drive assembly, a cleaning assembly, a permanent magnet speed controller, a commutation assembly, and a motor. The core component, the permanent magnet speed controller, is fixedly installed. The motor is slidably connected to the drive assembly via a base and is located on one side of the permanent magnet speed controller. The drive assembly can drive the motor to reciprocate relative to the permanent magnet speed controller along the axial direction, thereby precisely adjusting the air gap between the two to achieve speed regulation. The cleaning assembly is attached to the surface of the permanent magnet speed controller. The commutation assembly is located at the end of the movement stroke of the cleaning assembly. When the cleaning assembly moves to its limit position with the motor, the commutation assembly is manually triggered to change the movement direction of the cleaning assembly, avoiding its continuous unidirectional movement and rigid collision with the permanent magnet speed controller, thus ensuring the safety of the cleaning process and the stable operation of the equipment.

[0008] In this utility model's technical solution, the drive assembly is mainly used to drive the motor and provide axial displacement power. It includes a slide rail, a lead screw motor, a lead screw, a slider, a housing, and a top plate. The lead screw motor passes through the housing and drives the lead screw to rotate. The lead screw drives the slider to move axially along the slide rail. The slider is slidably connected to the base, and the base is simultaneously slidably engaged with the top plate. The cleaning assembly is integrated on the base and driven by the motor to achieve self-cleaning of the dustproof structure. The permanent magnet speed regulator is fixed to the top plate and controls the output speed by adjusting the axial air gap with the conductor disk.

[0009] In a preferred embodiment of the present invention, the drive assembly includes a slide rail, a lead screw motor, a lead screw, a slider, a housing, and a top plate. The lead screw motor rotates through the housing and is connected to the lead screw. The lead screw connects to the slider, which is slidably connected to the slide rail. The slide rail is fixedly connected to the housing, and the slider is slidably connected to the base. The base is slidably connected to the top plate. The slide rail is fixed to the housing, and the slider slides on the slide rail, ensuring the rigidity and guiding accuracy of the drive and moving parts, reducing swaying. The lead screw motor converts the rotational motion into the linear motion of the slider through the lead screw, effectively transmitting power and bearing the weight of the motor and the base.

[0010] In a preferred embodiment of the present invention, a motor is fixedly connected to the base, a permanent magnet speed regulator is fixedly connected to the top plate, a rotating shaft is provided on the motor, a cleaning component is fixedly connected to the rotating shaft, and a brush is provided on the cleaning component. The brush is used to clean the surface of the permanent magnet speed regulator. The rotating shaft of the motor is directly used as the power input of the cleaning component, eliminating the need for an additional independent cleaning motor, thus simplifying the structure, reducing costs, and reducing energy consumption.

[0011] In a preferred embodiment of the present invention, the cleaning component includes a threaded rod, which is fixedly connected to a first gear. The first gear meshes with a second gear, which is fixedly connected to a rotating shaft. The threaded rod is connected to a base, thus establishing a clear power transmission path from the motor's rotating shaft through the second gear to the threaded rod, effectively transmitting the motor's rotational power to the core rotating component of the cleaning component.

[0012] In a preferred embodiment of the present invention, the rotating shaft is fixedly connected to a third gear, the third gear meshes with a fourth gear, and the fourth gear is fixedly connected to a second rotating shaft. Through the meshing of the third and fourth gears, the power of the motor rotating shaft is further transmitted to the second rotating shaft, which makes it possible to drive another cleaning device, thereby expanding the function or improving the cleaning efficiency.

[0013] In a preferred embodiment of the present invention, the threaded rod is screwed onto the rotating block, and the rotating block is slidably connected to the guide block. The guide block provides precise guidance and support for the sliding of the rotating block, ensuring the stability and reliability of its motion trajectory.

[0014] In a preferred embodiment of the present invention, a brush ring is fixedly connected to the bottom of the rotating block. The inner wall of the brush ring is provided with a brush. The brush ring structure can wrap around the surface of the permanent magnet speed regulator 360 degrees, achieving one-time full circumferential cleaning with extremely high efficiency and no blind spots.

[0015] In a preferred embodiment of this utility model, a fixed rod is fixedly connected to the base, and a circular hole is formed in the fixed rod. A rotating rod passes through the circular hole and is fixedly connected to a rotating plate. A push block is fixedly connected to the rotating plate, and both sides of the push block are engaged with the sides of a first gear. Rotating the rotating rod can drive the push block, which in turn can drive the first gear to move along the threaded rod. Pushing the first gear a different distance allows it to mesh with a second or third gear, enabling the first gear to rotate in different directions. Engaging different gears will reverse the rotation direction of the first gear. This is the core action that can change the direction of movement of the cleaning component.

[0016] The advantages of this utility model compared with the prior art are: Utilizing the power and stroke of the speed-regulating motion itself, the brush is driven to clean the permanent magnet without the need for additional shutdown or power source. The reversing component forcibly changes the direction of movement of the cleaning component at the end of the stroke, effectively preventing rigid collisions and ensuring the safety of equipment and personnel. It has a compact structure and high mechanical reliability.

[0017] By reusing the original motor-driven cleaning components of the speed control system, hardware costs are saved; a mechanical push-block clutch replaces the electromagnetic clutch, preventing electronic components from failing in dusty environments and reducing the failure rate; the axial linear motion of the brush ring reduces the stress on the dust screen structure compared to traditional rotary cleaning, extending its lifespan. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of an insert-type permanent magnet drive speed controller. Figure 2 A schematic diagram of the drive assembly structure of an insert-type permanent magnet drive speed regulator; Figure 3 for Figure 1 Enlarged view of point A (i.e., schematic diagram of the cleaning component structure); Figure 4 This is a schematic diagram of the rotating rod structure of an insert-type permanent magnet drive speed regulator. Figure 5 A schematic diagram of a brush structure for an insert-type permanent magnet drive speed controller; Figure 6 This is a diagram showing the meshing state of the first and second gears. Figure 7 Diagram showing the meshing state of the first and fourth gears; In the diagram: 1-Screw motor, 2-Cleaning assembly, 201-Threaded rod, 207-Rotating block, 208-Guide block, 209-Brush ring, 210-Brush, 3-Permanent magnet speed regulator, 4-Reversing assembly, 41-Fixed rod, 42-Round hole, 43-Rotating rod, 44-Rotating plate, 45-Push block, 5-Motor, 51-Fixed shaft, 6-Drive assembly, 601-First gear, 602-Second gear, 603-Third gear, 604-Fourth gear. Detailed Implementation

[0019] The following will refer to the appendix in the embodiments of this utility model. Figure 1-7 The technical solutions in the embodiments of this utility model will be described in detail below. Example

[0020] like Figure 1 As shown, an insert-type permanent magnet drive speed regulator includes a lead screw motor 1, a cleaning component 2, a permanent magnet speed regulator 3, a reversing component 4, a motor 5, and a drive component 6. The permanent magnet speed regulator 3 connects the motor 5 to the load. The motor 5 is mounted on the lead screw motor 1, and the lead screw motor 1 can controllably adjust the position of the motor 5 to adjust the air gap in the permanent magnet speed regulator 3. The cleaning component 2 is mounted on the permanent magnet speed regulator 3 and is connected to the main shaft of the motor 5. The cleaning component 2 automatically cleans the permanent magnet speed regulator 3 as the motor 5 rotates. The reversing component 4 is connected to the drive component 6 and the motor 5. The reversing component 4 changes the direction of motion of the drive component 6, enabling the cleaning component 2 to reciprocate and clean the surface of the permanent magnet speed regulator 3.

[0021] The main function of the lead screw motor 1 is to control the axial displacement of the motor 5 through lead screw transmission, adjust the air gap of the permanent magnet speed regulator 3, and ensure smooth movement and avoid vibration by using the slide rail guide. The lead screw motor provides high torque output and is suitable for frequent reciprocating motion.

[0022] The main function of cleaning component 2 is to remove dust from the surface of the permanent magnet, prevent dust from causing changes in the air gap or magnetic attenuation, ensure transmission efficiency, and utilize the power source of motor 5 without the need for an additional drive device.

[0023] The main function of the commutation component 4 is to prevent the cleaning component from moving in one direction and impacting the permanent magnet speed controller 3.

[0024] The drive component 6 mainly adjusts the direction of movement of the rotating block 207 on the threaded rod 201.

[0025] The lead screw motor 1 is an existing device that can adjust the output speed by changing the axial air gap between the permanent magnet speed regulator 3 and the conductor disk.

[0026] Definition: The left end is the motor terminal 5, and the right end is the permanent magnet speed controller terminal 3.

[0027] like Figure 3 and 5 As shown, the cleaning component 2 includes a threaded rod 201, a rotating block 207, a guide block 208, a brush ring 209, and a brush 210. The threaded rod 201 is fixed on the frame of the motor 5. The rotating block 207 is screwed onto the threaded part of the threaded rod 201. The guide block 207 is on both sides of the rotating block 207. The brush ring 209 is fixedly connected below the rotating block 207. The brush ring 209 can brush the permanent magnet speed regulator 3.

[0028] Only a portion of the threaded rod 201 is threaded. The threaded portion is screwed onto the rotating block 207, and the smooth portion is connected to the center of the first gear 601. One end of the threaded rod 201 is fixed to the frame of the motor 5, and the other end is fixedly connected to the permanent magnet speed regulator 3.

[0029] To facilitate the reciprocating brushing of the permanent magnet speed controller 3 by the brush ring 209, a rotating block 207 is screwed onto the threaded rod 201. The rotating block 207 is a rectangular block with a threaded hole at its center. The threaded hole is screwed onto the threaded rod 201. When the threaded rod 201 rotates, the rotating block 207 can move back and forth on the threaded rod 201.

[0030] To ensure that the rotating block 207 can move stably on the threaded rod 201, guide blocks 208 are connected to both sides of it. The guide blocks 208 are long strips with a rectangular cross-section, which are fixed on the base of the permanent magnet speed controller 3 and located on both sides of the rotating block 207, thus ensuring the stable movement of the rotating block 207.

[0031] A brush ring 209 is fixed at the bottom of the rotating block 207. The brush ring 209 is an arc-shaped ring that fits around the outer surface of the permanent magnet speed regulator 3 without contacting it. There are bristles 210 on its inner wall. The bristles 210 contact the brush ring 209 and the permanent magnet speed regulator 3, and move back and forth on the threaded rod 201 with the rotating block 207. The bristles 210 can scrape the dust on the permanent magnet speed regulator 3.

[0032] like Figure 3 , 6As shown in Figure 7, the drive assembly 6 includes a first gear 601, a second gear 602, a third gear 603, and a fourth gear 604. The first gear 601 meshes with the second gear 602, causing the threaded rod 201 to rotate clockwise and the rotating block 207 to move to the left. The first gear 601 meshes with the third gear 603, and the third gear 603 meshes with the fourth gear 604, causing the threaded rod 201 to rotate counterclockwise and the rotating block 207 to move to the right.

[0033] The first gear 601 is mounted on the smooth surface of the threaded rod 20. The first gear 601 and the second gear 602 have the same diameter and mesh with each other.

[0034] The second gear 602 is mounted on the motor shaft of the motor 5. When the motor 5 starts, the second gear 602 rotates counterclockwise, which in turn drives the first gear 601 to rotate clockwise, and the threaded rod 201 also begins to rotate clockwise.

[0035] The third gear 603 is also mounted on the motor shaft of the motor 5 and meshes with the fourth gear 604. The third gear 603 and the fourth gear 604 have the same diameter, but both of their diameters are half the diameter of the first gear 601. When the motor 5 starts, the third gear 603 also rotates counterclockwise. At this time, the fourth gear 604, which meshes with the third gear 603, rotates clockwise. If the reversing assembly 4 is used to shift the first gear 601 to the position where it meshes with the fourth gear 604, and because the fourth gear 604 rotates clockwise, the first gear 601 will rotate counterclockwise, and the threaded rod 201 will also rotate counterclockwise.

[0036] The two different directions of rotational motion allow the rotating block 207 to reciprocate on the threaded rod 201, which in turn drives the brush ring 209 to clean back and forth on the permanent magnet speed regulator 3.

[0037] The fourth gear 604 is mounted on the fixed shaft 51, and the fixed shaft 51 is mounted on the frame of the motor 5.

[0038] like Figure 4 As shown, the commutation assembly 4 includes a fixed rod 41, a circular hole 42, a rotating rod 43, a rotating plate 44, and a push block 45. The fixed rod 41 is a rod with a rectangular cross-section, which is bolted to the frame of the motor 5. The rotating rod 43 and the rotating plate 44 are connected to the two sides of the fixed rod 41 respectively. The push block 45 is fixed on the rotating plate 44.

[0039] The fixing rod 41 is a rod with a rectangular cross-section. One end of the fixing rod 41 is bolted to the frame. The end of the fixing rod 41 away from the frame has a shaft with the same diameter as the circular hole 42. The shaft passes through the fixing rod 41 and is movably connected to the fixing rod 41.

[0040] The circular hole 42 mainly connects the rotating rod 43 and the rotating plate 44. The rotating rod 43 is composed of a thin plate that is approximately teardrop-shaped and a cylinder. One end of the thin plate has a circular hole 42, which is hinged to the shaft on the fixed rod 41. The rotating rod 43 can rotate around the shaft. The other end of the thin plate has a cylinder. The operator can hold the cylinder and rotate the rotating rod 43 to the left or right to drive the push block 45 to move to the left or right.

[0041] The rotating plate 44 is a thin plate that is approximately teardrop-shaped. Both its upper and lower ends have holes of the same size as the round hole 42. The lower end hole is hinged to the shaft on the fixed rod 41, and the upper end is fixedly connected to the push block 45.

[0042] The push block 45 is U-shaped and contacts the first gear 601. When the rotating rod 43 is rotated, the shaft on the fixed rod 41 will also drive the rotating plate 44 to rotate. Since the rotating plate 44 is fixed to the push block 45, the push block 45 will move to the left or right.

[0043] The usage process of this embodiment: When the lead screw motor 1 is turned on, the lead screw motor 1 will drive the motor 5 to slide axially relative to the permanent magnet speed controller 3. By adjusting the air gap distance between the motor 5 and the permanent magnet speed controller 3, stepless and precise control of the load speed can be achieved.

[0044] When cleaning is required, turn on motor 5 and adjust the motor to its lowest speed. When motor 5 is running, the rotating shaft of motor 5 synchronously drives the second gear 602 to rotate. The second gear 602 meshes and drives the first gear 601 to rotate. The first gear 601 drives the threaded rod 201 to rotate. The threaded rod 201 drives the rotating block 207 to move circumferentially along the guide block 208. The brush ring 209 at the bottom of the rotating block 207 rotates accordingly. The brush 210 on the inner wall of the brush ring 209 continuously cleans the dust adhering to the surface of the permanent magnet speed regulator 3.

[0045] When the motor 5 slides to its limit position (maximum or minimum air gap), the cleaning component 2 reaches the end of its travel stroke. At this time, the rotating rod 43 of the reversing component 4 is manually rotated. The rotating rod 43 drives the push block 45 to move axially. The push block pushes the first gear 601 of 45 to disengage from the second gear 602 and switch to mesh with the third gear 603. After the gear meshing state changes, the rotation direction of the threaded rod 201 is reversed, and the brush ring 209 moves in the opposite direction to avoid rigid collision with the permanent magnet speed regulator 3.

[0046] The lead screw motor 2 is readjusted to make the motor 5 slide in the opposite direction. The cleaning component 2 continues to perform cleaning in the new direction of movement. When it reaches another extreme position again, the manual reversal operation is repeated to achieve continuous and safe operation of the equipment.

[0047] The above embodiments are only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the scope of protection of this utility model.

Claims

1. An insert-type permanent magnet drive speed regulator, characterized in that: The device includes a lead screw motor (1), a cleaning component (2), a permanent magnet speed regulator (3), a reversing component (4), a motor (5), and a drive component (6). The permanent magnet speed regulator (3) connects the motor (5) to the load. The motor (5) is mounted on the lead screw motor (1). The lead screw motor (1) can controllably adjust the position of the motor (5) to adjust the air gap in the permanent magnet speed regulator (3). The cleaning component (2) is mounted on the permanent magnet speed regulator (3) and is connected to the main shaft of the motor (5). The cleaning component (2) automatically cleans the permanent magnet speed regulator (3) as the motor (5) rotates. The reversing component (4) is connected to the drive component (6) and the motor (5). The reversing component (4) changes the direction of motion of the drive component (6) to achieve reciprocating cleaning of the surface of the permanent magnet speed regulator (3) by the cleaning component (2).

2. The insertion-type permanent magnet drive speed regulator according to claim 1, characterized in that: The cleaning component (2) includes a threaded rod (201), a rotating block (207), a guide block (208), and a brush ring (209). The threaded rod (201) is screwed onto the rotating block (207). Guide blocks (208) are provided on both sides of the rotating block (207). The bottom end of the guide block (208) is connected to the brush ring (209).

3. The insertion-type permanent magnet drive speed regulator according to claim 2, characterized in that: The inner wall of the brush ring (209) is provided with brush bristles (210).

4. The insertion-type permanent magnet drive speed regulator according to claim 1, characterized in that: The drive assembly (6) includes a first gear (601), a second gear (602), a third gear (603) and a fourth gear (604). The first gear (601) is mounted on the threaded rod (201), and the second gear (602) and the third gear (603) are mounted on the rotating shaft of the motor (5). The third gear (603) meshes with the fourth gear (604).

5. The insertion-type permanent magnet drive speed regulator according to claim 4, characterized in that: A fixed shaft (51) is provided on the motor (5), and a fourth gear (604) is provided on the fixed shaft (51).

6. The insertion-type permanent magnet drive speed regulator according to claim 1, characterized in that: The reversing assembly (4) includes a fixed rod (41), a round hole (42), a rotating rod (43), a rotating plate (44), and a push block (45). The rotating rod (43) passes through the round hole (42) and connects to the rotating plate (44). The rotating plate (44) connects to the push block (45). The push block (45) contacts the first gear (601). Rotating the rotating rod (43) drives the push block (45) to move, which in turn drives the first gear (601) to move on the threaded rod (201). This enables the first gear (601) to mesh with the second gear (602) or the third gear (603) respectively, thereby enabling the first gear (601) to rotate in different directions.

7. The insertion-type permanent magnet drive speed regulator according to claim 6, characterized in that: The first gear (601), the second gear (602), the third gear (603), and the fourth gear (604) are not the same size.

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