Rotor unit of magnetic suspension conveying system

Abstract

The utility model provides a mover unit of a magnetic suspension conveying system, which comprises a connecting plate and two mover modules symmetrically arranged on two sides of the connecting plate through a rotary connecting mechanism, each mover module comprises a main body part and a guide part, the main body part comprises a frame and a magnetic plate assembly formed by a permanent magnet mover array arranged in the frame, and the guide part is arranged on the frame. The guiding part comprises two sliding base assemblies arranged front and back in the moving direction, each sliding base assembly comprises a sliding base body capable of rotating around a sliding base main shaft, and the two ends of each sliding base assembly are provided with an eccentric roller and a positive roller which are matched with the guide rails respectively. According to the structure, the mover units can adapt to track curvature changes, stable turning and continuous operation are achieved, and meanwhile the load capacity and the operation stability are remarkably improved through cooperative work of the double mover modules.

Description

Technical Field

[0001] This utility model relates to a magnetic levitation mover structure, specifically a mover unit of a magnetic levitation transport system. Background Technology

[0002] Magnetic levitation conveyor systems are widely used in automation fields such as logistics, sorting, and production lines. The moving unit, as the core driving component, directly affects the system's load, accuracy, and flexibility. As the load increases, the motor module size needs to be increased, resulting in more space. Existing moving units mostly adopt a single-module rigid connection structure, while others use a moving unit with a slider structure that follows an S-shaped trajectory. When passing through curved tracks, these are prone to trajectory deviation, increased vibration, and uneven load, leading to unstable operation, reduced efficiency, and a lack of adaptive adjustment capabilities, making it difficult to simultaneously meet the demands of high load and high flexibility.

[0003] Furthermore, in the transport structure of magnetic levitation, the traditional mover uses V-shaped rollers in conjunction with linear guide rails, which can significantly increase the running speed and stability, and has the advantages of high speed and low noise. However, this structure can only follow a specific circular arc trajectory, and its limitation in traversing arc segments is very large. It cannot achieve trajectory changes, and the running speed of the mover must be sacrificed. Therefore, the mover structure needs to be adjusted. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a moving subunit of a magnetic levitation conveyor system, including: a connecting plate;

[0005] Two moving parts are symmetrically mounted on both sides of the connecting plate via a rotating connection mechanism;

[0006] Each mover module includes a guide section and a main body section. The main body section includes a frame, within which a magnetic plate assembly composed of a permanent magnet mover array is installed.

[0007] The guide includes two slide assemblies arranged at the top of the frame. The two slide assemblies are arranged back and forth along the moving direction of the moving unit. Each slide assembly includes a slide body and a slide spindle connected to the middle of the slide body. The slide body is connected through the slide spindle and can rotate around the center of the slide spindle. Eccentric rollers and central rollers that cooperate with the guide rail are respectively provided at both ends of the slide body.

[0008] Furthermore, the rotary connection mechanism is a first bearing, and each moving module can rotate relative to the connecting plate around its own center.

[0009] Furthermore, the eccentric roller is adjusted by bolts to achieve a tight fit between the roller and the guide rail.

[0010] Furthermore, the main body includes protective blocks on both sides of the magnetic plate assembly.

[0011] Furthermore, partitions are provided between the two moving parts and the connecting plate.

[0012] Furthermore, the slide main shaft is connected to the frame via a second bearing.

[0013] Furthermore, the upper part of the frame is provided with a mounting groove along the transmission direction, and the second bearing is connected in the mounting groove.

[0014] Furthermore, a pressure plate is also connected inside the mounting groove, which encapsulates the second bearing inside the mounting groove.

[0015] Furthermore, a follower wheel is provided below the main body, and the follower wheel is connected to the lower part of the frame through a mounting block.

[0016] Furthermore, both the central roller and the eccentric roller adopt a V-shaped structure.

[0017] This invention provides a moving unit for a magnetic levitation conveyor system, comprising a connecting plate and two moving modules symmetrically mounted on both sides of the connecting plate via a rotary connecting mechanism. Each moving module includes a main body and a guide body. The main body includes a frame and a magnetic plate assembly consisting of a permanent magnet moving element array mounted therein. The guide body includes two slide assemblies arranged front and rear along the direction of movement. Each slide assembly includes a slide body rotatable around a slide main axis, with an eccentric roller and a central roller at each end respectively cooperating with a guide rail. This structure enables the moving unit to adapt to changes in track curvature, achieving smooth turning and continuous operation. Simultaneously, the coordinated operation of the two moving modules significantly improves load capacity and operational stability.

[0018] The moving unit of this magnetic levitation conveying system features high load adaptability, stable operation, and strong track fit. Through the rotatable dual moving unit module design, the unit can automatically adjust its angle in arc or S-shaped tracks to maintain a stable center trajectory and reduce vibration and deviation. The V-shaped roller structure forms line contact with the guide rail, improving guiding accuracy and wear resistance during high-speed operation. The design of the protective block and follower wheel further enhances vibration resistance and anti-overturning ability. The overall structure has a high degree of integration and is suitable for various complex magnetic levitation conveying scenarios. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the moving subunit of a magnetic levitation transport system according to this utility model;

[0020] Figure 2 This is a front view of a schematic diagram of the moving subunit of a magnetic levitation transport system according to this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of a single moving part module;

[0022] Figure 4 This is a structural schematic diagram of the slide assembly;

[0023] Figure 5 This is an exploded view of a single moving part module;

[0024] Figure 6 This is a schematic diagram of the movement of two slide assemblies along the guide rail.

[0025] Reference numerals: connecting plate 1, first bearing 11, partition 12;

[0026] Main body 2, magnetic plate assembly 21, frame 22, protective block 23;

[0027] Guide section 3, slide body 31, slide main shaft 32, second bearing 33, pressure plate 34, central roller 35, eccentric roller 36, follower wheel 37, mounting block 38. Detailed Implementation

[0028] like Figure 1 and Figure 2 The illustrated moving part unit of a magnetic levitation conveyor system includes a connecting plate 1 and two moving part modules. The moving part module is the core functional unit in the magnetic levitation conveyor system that directly performs linear motion. It comprises a main body 2 and a guide part 3. The main body 2 contains a magnetic plate assembly 21 composed of a permanent magnet moving part array, which forms an electromagnetic coupling with the stator coil on the track, generating an electromagnetic force to propel the moving part forward. The guide part 3, through rollers, contacts and engages with the magnetic levitation track, constraining the stroke of the moving part module and ensuring it moves strictly along a predetermined path. The connecting plate 1 is the structural foundation of the entire moving part unit, with pins on its upper surface for positioning workpieces. The two moving part modules are connected as a whole by the connecting plate 1, ensuring they can work collaboratively. The connecting plate 1 effectively distributes and balances the load, distributing the force borne by a single moving part module to both moving parts, thereby improving the overall load capacity of the trolley.

[0029] The purpose of this invention is to provide a moving unit that does not affect the mobility of a magnetic levitation track while increasing the load. Each moving module of this device is mounted on both sides of the connecting plate 1 via a rotating connection mechanism, allowing the two moving modules to rotate independently and slightly around their respective mounting centers. When the trolley enters an arc or S-shaped track, the two moving modules can automatically adjust their angles according to the curvature of the guide rail, resulting in minimal change in the center trajectory of the moving unit and thus achieving a smooth transition.

[0030] Specifically, such as Figures 3 to 5As shown, the main body 2 includes a frame 22, and the magnetic plate assembly 21 is installed in the middle of the frame 22. The top of each frame 22 is rotatably connected to the connecting plate 1 through a first bearing 11. The first bearing 11 is a crossed roller bearing, which can simultaneously withstand radial load, axial load, and overturning moment, maintaining the stability of the frame 22 and the connecting plate 1 and reducing the vibration generated by the connecting plate 1 during transportation. A partition 12 is provided between the first bearing 11 and the connecting plate 1. The partition 12 is coaxially arranged with the first bearing 11 and plays the role of adjusting the gap, dispersing stress, and preventing loosening, thereby protecting the first bearing 11 and the connecting plate 1. Furthermore, polyurethane protective blocks 23 are provided on both sides of the magnetic plate assembly 21 in the frame 22. The magnetic plate assembly 21 is wrapped in the protective blocks 23. The protective blocks 23 can absorb the vibration generated when the moving unit moves, reduce the impact on the magnetic plate assembly 21, and improve the stability of the cooperation between the magnetic plate assembly 21 and the stator coil.

[0031] The guide section 3 includes two slide assemblies disposed on the top of the frame 22. The two slide assemblies are arranged back and forth along the moving direction of the moving subunit. Each slide assembly includes a slide body 31 and a slide main shaft 32 connected to the middle of the slide body 31. The slide main shaft 32 extends vertically and forms a rotary pair with the frame 22 through a second bearing 33. Mounting holes are symmetrically provided on both sides of the slide body. A central roller 35 and an eccentric roller 36 are respectively installed in the two mounting holes by fastening bolts. The rollers are used to cooperate with the track structure of the magnetic levitation conveyor system. The two types of rollers "clamp" the track from both sides, ensuring that the moving subunit runs strictly along the track and preventing it from shifting left or right, lifting, or twisting. The preload of the eccentric roller 36 with the track can be adjusted by fastening bolts, eliminating contact gaps and preventing the roller from falling off the track. The central roller 35 and the eccentric roller 36 form a force couple balance with the slide main shaft 32 as the center. The line connecting their centers always passes through the central axis of the magnetic levitation track. When the moving unit passes through the arc segment or S-segment, the lateral force of the guide rail on the roller will drive the slide main shaft 32 to produce a slight deflection. At this time, the central roller 35 maintains the reference positioning, and the eccentric roller 36 moves along the adjustment direction to automatically compensate for the gap change of the arc segment track.

[0032] This invention incorporates two sliding block assemblies arranged in a front-to-back configuration within a single moving block module. The rollers of these two sliding block assemblies provide support from the front and rear sides of the frame 22, forming a stable support base. This concentrates the force between the guide rail and the rollers onto the frame 22. Each of the two sliding block assemblies is connected to the frame 22 via its respective second bearing 33. When traversing an arc segment, the change in the curvature of the track generates differential lateral forces on the rollers of the two sliding block assemblies, causing the sliding block assemblies to rotate slightly around the sliding block main shaft 32, thus ensuring the movement trajectory of the single moving block module.

[0033] Both the central roller 35 and the eccentric roller 36 adopt a V-shaped structure, which, in conjunction with the V-shaped guide rail of the magnetic levitation system, forms a line contact rolling relationship between the roller and the guide rail, allowing the roller to run at high speed along the guide rail. Furthermore, due to the self-adjusting structure of the slide assembly of this invention, the roller will not detach from the guide rail during movement.

[0034] The upper part of the frame 22 is further provided with a mounting groove along the transmission direction. Two sets of second bearings 33 are connected in the mounting groove, providing a precise reference position for the second bearings 33 and ensuring the center distance and relative distance of the two slide assemblies. A pressure plate 34 is also connected in the mounting groove. The pressure plate 34 is fixed to the mounting groove by screws. The surface of the pressure plate 34 has mounting holes to accommodate the second bearings 33. The pressure plate 34 encapsulates the second bearings 33 in the mounting groove, forming a protective cover, which enhances the operating accuracy of the second bearings 33 and prevents dust from affecting their operation. The first bearing 11 is installed above the pressure plate 34, and its outer ring is connected to the pressure plate 34. The upper surface of the pressure plate 34 forms a mounting surface for the first bearing 11, which facilitates the installation of the sliding assembly and the first bearing 11, and has the advantages of high integration and stable connection.

[0035] Furthermore, a follower wheel 37 is provided below the magnetic plate assembly 21. The follower wheel 37 is configured as a flat guide rail and cooperates with the lower outer side of the track structure. The roller assembly is located on the upper side of the main body 2, and the follower wheel 37 is connected to the lower part of the frame 22 through the mounting block 38. The roller assembly and the follower wheel 37 together guide the movement trajectory of the mover module. The upper roller assembly guides the direction of the mover through adaptive adjustment, and the follower wheel 37 provides anti-overturning torque to prevent the main body 2 from tipping outward due to centrifugal force.

[0036] Combination Figure 6 The working process of this embodiment is described as follows: When the moving sub-unit enters the arc segment from the straight segment, the position of the roller group of the rear moving sub-module remains relatively unchanged, while the roller group of the front moving sub-module adapts to the curvature of the guide rail. The two eccentric rollers 36 are close to the guide rail and move closer to each other. The center of the roller group remains parallel to the guide rail, the swaying distance is small, and the operation is stable and smooth. The design of the dual moving sub-module can adapt to more layouts and expand the application scenarios.

[0037] The assembly process of this embodiment is as follows: The magnetic plate assembly 21 and the protective block 23 are fixed to the middle of the frame 22 of the main body 2 by pins or screws. The two slide bodies 31 are connected to the upper part of the frame 22 by the second bearing 33. The eccentric roller 36 and the center roller 35 are installed, and then the guide rail is inserted. After the eccentric roller is finely adjusted to reach the expected preload, the nut is tightened. The pressure plate 34 is pressed into the mounting groove and the first bearing 11 is installed above the pressure plate 34. The locking screw is used to position the two slides. Then the follower wheel 37 is installed at the bottom of the frame 22 with screws. Finally, the connecting plate 1 is connected to the two second bearings 33 to complete the assembly of the entire moving subunit.

[0038] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A moving subunit of a magnetic levitation transport system, characterized in that, include: Connecting plate (1); Two moving modules are symmetrically installed on both sides of the connecting plate (1) via a rotating connection mechanism; Each mover module includes a guide section (3) and a main body section (2). The main body section (2) includes a frame (22), and a magnetic plate assembly (21) composed of a permanent magnet mover array is installed inside the frame (22). The guide part (3) includes two slide assemblies arranged on the top of the frame (22). The two slide assemblies are arranged back and forth along the moving direction of the moving subunit. Each slide assembly includes a slide body (31) and a slide spindle (32) connected to the middle of the slide body (31). The slide body (31) is connected through the slide spindle (32) and can rotate around the center of the slide spindle (32). The two ends of the slide body (31) are respectively provided with an eccentric roller (36) and a central roller (35) that cooperate with the guide rail.

2. The moving subunit of a magnetic levitation transport system as described in claim 1, characterized in that, The rotating connection mechanism is a first bearing (11), and each moving module can rotate relative to the connecting plate (1) around its own center.

3. The moving subunit of a magnetic levitation transport system as described in claim 1, characterized in that, The eccentric roller (36) is adjusted by bolts to achieve a tight fit between the roller and the guide rail.

4. The moving subunit of a magnetic levitation transport system as described in claim 1, characterized in that, The main body (2) includes protective blocks (23) on both sides of the magnetic plate assembly (21).

5. The moving subunit of a magnetic levitation transport system as described in claim 2, characterized in that, A partition (12) is provided between the two moving modules and the connecting plate (1).

6. The moving subunit of a magnetic levitation transport system as described in claim 1, characterized in that, The slide main shaft (32) is connected to the frame (22) via a second bearing (33).

7. The moving subunit of a magnetic levitation transport system as described in claim 1, characterized in that, The upper part of the frame (22) is provided with a mounting groove along the transmission direction, and the second bearing (33) is connected in the mounting groove.

8. The moving subunit of a magnetic levitation transport system as described in claim 7, characterized in that, A pressure plate (34) is also connected inside the mounting groove, and the pressure plate (34) encapsulates the second bearing (33) inside the mounting groove.

9. The moving subunit of a magnetic levitation transport system as described in claim 1, characterized in that, A follower wheel (37) is provided below the main body (2), and the follower wheel (37) is connected to the lower part of the frame (22) through a mounting block (38).

10. The moving subunit of a magnetic levitation transport system as described in claim 1, characterized in that, Both the central roller (35) and the eccentric roller (36) adopt a V-shaped structure.

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