Auxiliary magnetic suspension motor assembly tool

Abstract

The utility model relates to the field of magnetic suspension motors, in particular to an auxiliary magnetic suspension motor assembly tool which comprises a working table, a lifting plate is arranged over the working table, height adjusting assemblies are arranged at the four corners between the working table and the lifting plate respectively, a supporting frame is arranged at the top of a supporting plate, and a chuck is fixedly connected to the top of the supporting frame. A supporting ring is detachably connected into the chuck, a rotor extension rod is concentrically arranged in the supporting ring, at least three clamping assemblies for clamping the rotor extension rod are distributed on the supporting ring in an annular array mode, and an arc-shaped supporting plate is connected to one side of the supporting frame. The other end of the arc-shaped supporting plate is integrally connected with a connecting ring used for being connected with a motor shell, and the rotor extension rod and the connecting ring are concentrically arranged. The tool is reasonable in structural design and convenient to operate, and can keep a motor rotor concentric with parts such as a stator core and a magnetic suspension bearing, so that the motor rotor and other components can be conveniently and smoothly mounted, and the parts are prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of magnetic levitation motors, and in particular to an auxiliary assembly fixture for magnetic levitation motors. Background Technology

[0002] With the development of science and technology and the demands of production, magnetic levitation high-speed motors have become one of the hot research topics in the international electrical engineering field. Due to their advantages such as high energy density, small structural size, and high efficiency, magnetic levitation high-speed motors are currently widely used in industrial fields such as micro gas turbines, high-speed centrifugal compressors, molecular pumps, high-speed machining centers, and flywheel energy storage, and their application scope continues to expand. During operation, the stability of the motor rotor is crucial to ensuring the smooth and efficient operation of the motor. The magnetic properties of the permanent magnets in the rotor and the dynamic balance of the rotor itself directly affect the working performance of the magnetic levitation motor.

[0003] Currently, magnetic levitation motors have a complex structure, including a stator, rotor, magnetic bearings, and various sensors, making assembly difficult. High-power magnetic levitation motors, in particular, have heavy rotors with strong magnets that attract each other to the stator core during assembly, causing misalignment between the rotor and the overall motor. If this cannot be properly secured, it will affect assembly efficiency and may also damage or even crush fragile components such as magnetic bearings and sensors. Utility Model Content

[0004] The main technical problem to be solved by this utility model is to provide an auxiliary assembly fixture for magnetic levitation motors. The fixture has a reasonable structural design, is easy to operate, and can keep the motor rotor, stator core, magnetic levitation bearing and other parts concentric, thereby facilitating the smooth installation of the motor rotor and other components and ensuring that the parts are not damaged.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] An auxiliary magnetic levitation motor assembly fixture includes a worktable, a lifting plate positioned directly above the worktable, height adjustment components positioned at the four corners between the worktable and the lifting plate, a support frame positioned on the top of the lifting plate, a clamp fixedly connected to the top of the support frame, a support ring detachably connected inside the clamp, a rotor extension rod concentrically arranged inside the support ring, at least three clamping components arranged in a circular array on the support ring for clamping the rotor extension rod, an arc-shaped support plate connected to one side of the support frame, and a connecting ring integrally connected to the other end of the arc-shaped support plate for connecting to the motor housing, with the rotor extension rod and the connecting ring concentrically arranged.

[0007] The following are further optimizations of the above technical solution by this utility model:

[0008] A threaded head is integrally connected to the center of one end face of the rotor extension rod.

[0009] Further optimization: The height adjustment component includes a first threaded rod fixedly installed on the top of the workbench, the top end of the first threaded rod sliding through the lifting plate and extending above it.

[0010] Further optimization: Each of the first threaded rods is symmetrically threaded with fastening bolts on both sides of the lifting plate.

[0011] Further optimization: The clamping assembly includes a second threaded rod threaded through the support ring, a knob fixedly connected to the side of the second threaded rod away from the support ring, and a clamping block rotatably connected to the other end of the second threaded rod.

[0012] Further optimization: An arc-shaped groove is provided on the side of the clamping block that contacts the rotor extension rod, and the arc-shaped groove matches the outer circumferential surface of the rotor extension rod.

[0013] Further optimization: The connecting ring has multiple connecting holes in a ring array on the side away from the worktable.

[0014] This invention, through the combined arrangement of a height adjustment component and a lifting plate, allows for the adjustment of the lifting plate height according to different assembly requirements.

[0015] This utility model features a concentric design between the rotor extension rod and the connecting ring, as well as between the support ring and the rotor extension rod. This overall-to-partial concentric design lays the foundation for the concentric installation of the motor rotor and other parts, ensuring the accuracy of the motor rotor axis position during installation.

[0016] This invention uses a support ring and a ring array of clamping components to clamp the rotor extension rod evenly from different directions, ensuring its positional accuracy. This facilitates the concentric installation of the motor rotor with the stator core, magnetic bearings, and other parts.

[0017] This invention reduces vibration and sway of the rotor extension rod by using a clamping assembly to stably clamp it, avoiding collisions or friction with other parts and reducing the risk of damage to the parts. Concentric installation ensures accurate matching of the motor rotor with other parts, preventing damage to parts caused by excessive squeezing or friction due to misalignment or non-concentricity.

[0018] By adopting the above technical solution, the present invention has a reasonable structural design, is easy to operate, and can keep the motor rotor, stator core, magnetic levitation bearing and other parts concentric, thereby facilitating the smooth installation of the motor rotor and other components and ensuring that the parts are not damaged.

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0021] Figure 2 This is a schematic diagram of the overall structure from another angle of an embodiment of the present utility model.

[0022] Figure 3 This is a usage state diagram of an embodiment of this utility model.

[0023] In the diagram: 1-Workbench; 2-Lifting plate; 3-Height adjustment assembly; 31-First threaded rod; 32-Fasting bolt; 4-Support frame; 5-Clamping head; 6-Support ring; 7-Rotor extension rod; 8-Clamping assembly; 81-Second threaded rod; 82-Knob; 83-Clamping block; 9-Arc-shaped support plate; 10-Connecting ring; 11-Threaded head; 12-Connecting hole; 13-Support leg; 14-Wheel caster. Detailed Implementation

[0024] like Figure 1-3 As shown, an auxiliary magnetic levitation motor assembly fixture includes a workbench 1, a lifting plate 2 is arranged directly above the workbench 1, height adjustment components 3 are respectively arranged at the four corners between the workbench 1 and the lifting plate 2, a support frame 4 is arranged on the top of the lifting plate 2, a clamp 5 is fixedly connected to the top of the support frame 4, a support ring 6 is detachably connected inside the clamp 5, a rotor extension rod 7 is concentrically arranged inside the support ring 6, at least three clamping components 8 are arranged in a ring array on the support ring 6 to clamp the rotor extension rod 7, an arc-shaped support plate 9 is connected to one side of the support frame 4, and a connecting ring 10 for connecting to the motor housing is integrally connected to the other end of the arc-shaped support plate 9, and the rotor extension rod 7 and the connecting ring 10 are concentrically arranged.

[0025] This design allows for several advantages. Firstly, by coordinating the height adjustment component 3 and the lifting plate 2, the height of the lifting plate 2 can be adjusted according to different assembly requirements.

[0026] Secondly, the rotor extension rod 7 and the connecting ring 10 are concentrically set, and the support ring 6 and the rotor extension rod 7 are also concentric. This concentric design from the whole to the parts lays the foundation for the concentric installation of the motor rotor and other parts, and ensures the accuracy of the motor rotor axis position during the installation process.

[0027] Third, the support ring 6 and the clamping components 8 distributed in a ring array are set together to clamp the rotor extension rod 7 evenly from different directions, ensuring its positional accuracy, which is conducive to the concentric installation of the motor rotor with the stator core, magnetic levitation bearing and other parts.

[0028] Fourth, the stable clamping of the rotor extension rod 7 by the clamping assembly 8 reduces its vibration and shaking, avoids collision or friction with other parts, reduces the risk of damage to the parts, and the concentric installation ensures that the motor rotor and other parts are accurately matched, preventing damage to the parts due to excessive squeezing or friction caused by misalignment or non-concentricity.

[0029] The rotor extension rod 7 has a threaded head 11 integrally connected to the center of one end face, and a connecting screw hole (not shown in the figure) adapted to the threaded head 11 is provided at the center of one end face of the motor rotor.

[0030] This design serves several purposes. Firstly, since the threaded head 11 is integrally connected to the rotor extension rod 7, and the connecting screw hole on the motor rotor is also machined according to precise positions, when the threaded head 11 is screwed into the connecting screw hole, it can effectively ensure the concentricity of the rotor extension rod 7 and the motor rotor, thereby placing the motor rotor at the center of the motor housing.

[0031] Secondly, the design of the threaded head 11 and the connecting screw hole allows the rotor extension rod 7 to be quickly and accurately connected to the motor rotor. Thus, during the assembly process, the operator only needs to screw the threaded head 11 into the connecting screw hole to complete the connection.

[0032] The height adjustment component 3 includes a first threaded rod 31 fixedly installed on the top of the workbench 1, the top end of the first threaded rod 31 sliding through the lifting plate 2 and extending above it.

[0033] Each of the first threaded rods 31 is symmetrically threaded with fastening bolts 32 on both sides of the lifting plate 2.

[0034] In practical use, first loosen the fastening bolts 32 on both sides of the lifting plate 2. Then, according to the actual assembly requirements, the operator manually slides the lifting plate 2 up or down along the first threaded rod 31. During the sliding process of the lifting plate 2, due to the guiding effect of the first threaded rod 31, the lifting plate 2 can maintain stable vertical movement without deviation or shaking.

[0035] Once the lifting plate 2 is adjusted to the appropriate height, the operator needs to fix it in that position. At this time, by rotating the fastening bolts 32 located symmetrically on both sides of the lifting plate 2, the fastening bolts 32 are moved closer to the lifting plate 2 and gradually pressed against it. As the fastening bolts 32 are tightened, they will generate friction on the first threaded rod 31, thereby firmly fixing the lifting plate 2 at the current height position.

[0036] This design serves several purposes. First, the first threaded rod 31 provides a stable vertical guide for the lifting plate 2, allowing it to slide smoothly up and down. This ensures the accuracy and stability of height adjustment and helps the motor components to accurately reach their assembly positions in the vertical direction.

[0037] Secondly, after the height adjustment is completed, the symmetrical fastening bolts 32 on both sides of the lifting plate 2 can be rotated to press the lifting plate 2, and the friction force is used to fix it at a specific height position of the first threaded rod 31. The symmetrical design makes the fastening force evenly distributed, preventing the lifting plate 2 from loosening or tilting on one side, and improving the stability of the fixation.

[0038] Thirdly, the height of the lifting plate 2 can be flexibly adjusted according to different motor assembly requirements, adapting to the assembly requirements of various motor models and improving the versatility of the tooling.

[0039] Fourth, the operation is simple and intuitive. The height can be adjusted by sliding the lifting plate 2 and fixed by rotating the fastening bolt 32. No complicated tools or professional skills are required, which makes it convenient for operators to use and improves work efficiency.

[0040] The clamping assembly 8 includes a second threaded rod 81 threaded through the support ring 6. A knob 82 is fixedly connected to the side of the second threaded rod 81 away from the support ring 6, and a clamping block 83 is rotatably connected to the other end of the second threaded rod 81.

[0041] The clamping block 83 has an arc-shaped groove on the side that contacts the rotor extension rod 7, and the arc-shaped groove matches the outer circumferential surface of the rotor extension rod 7.

[0042] When it is necessary to clamp the rotor extension rod 7, the operator rotates the knob 82. Since the second threaded rod 81 is threaded through the support ring 6, the rotation of the knob 82 will drive the second threaded rod 81 to move along its axial direction. As the second threaded rod 81 moves, the clamping block 83, which is rotatably connected to its other end, will move closer to or away from the rotor extension rod 7. Because the side of the clamping block 83 that contacts the rotor extension rod 7 has an arc-shaped groove that matches the outer circumferential surface of the rotor extension rod 7, when the clamping block 83 approaches the rotor extension rod 7, the arc-shaped groove can fit well against the outer circumferential surface of the rotor extension rod 7, thereby achieving a stable clamping of the rotor extension rod 7.

[0043] When it is necessary to release the clamp on the rotor extension rod 7, the reverse rotation of the knob 82 will drive the second threaded rod 81 to move axially away from the rotor extension rod 7. As the second threaded rod 81 moves, the clamping block 83 rotatably connected to it will also move away from the rotor extension rod 7. Since the side of the clamping block 83 that contacts the rotor extension rod 7 has an arc-shaped groove that matches the outer circumferential surface of the rotor extension rod 7, when the clamping block 83 is far enough away, the arc-shaped groove will no longer be tightly fitted with the rotor extension rod 7, thereby releasing the rotor extension rod 7. At this time, the rotor extension rod 7 is in a state that can be freely adjusted or removed.

[0044] This design serves several purposes. First, the arc-shaped groove of the clamping block 83 matches the outer circumferential surface of the rotor extension rod 7, increasing the contact area, making the clamping force more uniform, avoiding uneven local force distribution, and enhancing clamping stability and the positional accuracy of the rotor extension rod 7.

[0045] Secondly, by rotating the knob 82, the position of the clamping block 83 can be adjusted to accommodate rotor extension rods 7 of different diameters. For different sizes of rotor extension rods 7 involved in the assembly of different motor models, this clamping assembly 8 can improve the versatility and adaptability of the tooling.

[0046] The connecting ring 10 has multiple connecting holes 12 arranged in a ring array on the side away from the worktable 1.

[0047] This design has several advantages. First, the ring array of connecting holes 12 allows for a uniform distribution of force when the motor housing is connected to the connecting ring 10, preventing excessive local stress that could lead to loosening or damage. This improves the overall structural stability of the motor and enables it to withstand various forces during operation.

[0048] Secondly, during motor assembly, the installation position of the motor housing can be fine-tuned by selecting different connection holes 12 or adjusting the position of the connector in the connection hole 12, thereby improving assembly accuracy and flexibility.

[0049] Support legs 13 are fixedly connected to the four corners of the bottom of the workbench 1, and the bottom of each support leg 13 is equipped with a caster wheel 14 with a brake device.

[0050] This design, with the universal wheel 14 equipped with a brake, not only makes it easy to move the tooling to the required position, but also allows the brake to lock the universal wheel 14 while the tooling is in operation, thus ensuring the stability of the tooling during operation.

[0051] In actual use, first unlock the universal wheel 14, move the tool to the required position using the universal wheel 14, and then lock the universal wheel 14.

[0052] Then, adjust the height of the lifting plate 2 according to the installation requirements. First, loosen the fastening bolts 32 on both sides of the lifting plate 2. Then, according to the actual assembly requirements, the operator manually slides the lifting plate 2 up or down along the first threaded rod 31. During the sliding process of the lifting plate 2, due to the guiding effect of the first threaded rod 31, the lifting plate 2 can maintain stable vertical movement without deviation or shaking.

[0053] Once the lifting plate 2 is adjusted to the appropriate height, the screw holes on the connecting ring 10 are aligned with the corresponding screw holes on the motor housing. The operator needs to fix it in this position. At this time, by rotating the fastening bolts 32 symmetrically located on both sides of the lifting plate 2, the fastening bolts 32 are moved closer to the lifting plate 2 and gradually pressed against it. As the fastening bolts 32 are tightened, they will generate friction on the first threaded rod 31, thereby firmly fixing the lifting plate 2 at the current height position. Then, the screw holes on the connecting ring 10 and the corresponding screw holes on the motor housing are inserted into the same bolt and tightened, so that the connecting ring 10 and the motor housing are firmly connected together.

[0054] When the clamp on the rotor extension rod 7 is released, the operator rotates the knob 82 in the opposite direction. Since the second threaded rod 81 is threaded on the support ring 6, the rotation of the knob 82 will cause the second threaded rod 81 to move along its axial direction and away from the rotor extension rod 7. The clamping block 83 gradually moves away from the rotor extension rod 7 as the second threaded rod 81 moves, until a gap reappears between the clamping block 83 and the rotor extension rod 7. At this time, the rotor extension rod 7 is removed.

[0055] The motor assembly to be assembled is then placed on the arc-shaped support plate 9. At this time, the rotor extension rod 7 is inserted between the three clamping components 8. Then, the rotor extension rod 7 is moved so that the end of the rotor extension rod 7 with the threaded head 11 passes through the motor assembly and corresponds to the connecting screw hole of the motor rotor. The rotor extension rod 7 is rotated so that the threaded head 11 is screwed into the connecting screw hole, thus realizing the connection between the rotor extension rod 7 and the motor rotor.

[0056] The operator then rotates knob 82 in the forward direction. Since the second threaded rod 81 is threaded onto the support ring 6, the rotation of knob 82 will cause the second threaded rod 81 to move along its axial direction and towards the rotor extension rod 7. As the second threaded rod 81 moves, the clamping block 83, which is rotatably connected to its other end, will also move closer to the rotor extension rod 7. The arc-shaped groove on the clamping block 83 gradually approaches the rotor extension rod 7, and finally the arc-shaped groove contacts the outer circumferential surface of the rotor extension rod 7. Continuing to rotate knob 82, the second threaded rod 81 continuously pushes the clamping block 83, so that the clamping block 83 fits tightly against the outer circumferential surface of the rotor extension rod 7, thereby making the motor rotor concentric with the motor housing. Then, the motor assembly is installed into the motor housing.

[0057] For those skilled in the art, any changes, modifications, substitutions, and variations made to the implementation methods without departing from the principles and spirit of this utility model, based on the teachings of this utility model, still fall within the protection scope of this utility model.

Claims

1. An auxiliary magnetic levitation motor assembly tooling jig comprising a worktable (1), characterized in that: The workbench (1) is provided with a lifting plate (2) above it, four height adjusting assemblies (3) are arranged on the four corners between the workbench (1) and the lifting plate (2), a support frame (4) is arranged on the top of the lifting plate (2), a chuck (5) is fixedly connected to the top of the support frame (4), a support ring (6) is detachably connected in the chuck (5), a rotor extension rod (7) is concentrically arranged in the support ring (6), at least three clamping assemblies (8) for clamping the rotor extension rod (7) are arranged in an annular array on the support ring (6), an arc-shaped support plate (9) is connected to one side of the support frame (4), a connecting ring (10) for connecting with the motor housing is integrally connected to the other end of the arc-shaped support plate (9), and the rotor extension rod (7) and the connecting ring (10) are concentrically arranged.

2. The auxiliary magnetic levitation motor assembly tooling of claim 1, wherein: A threaded head (11) is integrally connected to the center of one end surface of the rotor extension rod (7).

3. The auxiliary magnetic levitation motor assembly tooling of claim 1, wherein: The height adjusting assembly (3) comprises a first threaded rod (31) fixedly arranged on the top of the workbench (1), and the first threaded rod (31) is slidably penetrated through the lifting plate (2) and extends above it.

4. The auxiliary magnetic levitation motor assembly tooling of claim 3, wherein: A fastening bolt (32) is symmetrically and threadedly connected to each first threaded rod (31) on both sides of the lifting plate (2).

5. The assembly tool for a magnetic levitation motor according to claim 1, wherein: The clamping assembly (8) comprises a second threaded rod (81) threadedly arranged on the support ring (6), a knob (82) fixedly connected to the side of the second threaded rod (81) away from the support ring (6), and a clamping block (83) rotatably connected to the other end of the second threaded rod (81).

6. The assembly tool for a magnetic levitation motor according to claim 5, wherein: An arc-shaped groove is formed in the side of the clamping block (83) in contact with the rotor extension rod (7), and the arc-shaped groove is matched with the outer peripheral surface of the rotor extension rod (7).

7. The magnetic suspension motor assembly aid of claim 1, wherein: A plurality of connecting holes (12) are annularly arranged on the side of the connecting ring (10) away from the workbench (1).

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