Modularized permanent magnet coupler supported by double bearings

Abstract

The invention relates to the technical field of mechanical transmission parts, and discloses a dual-bearing-supported modular permanent magnet coupler. The dual-bearing-supported modular permanent magnet coupler comprises an input side hub, a bearing a, a conductor disc assembly b, a magnet disc assembly c and an elastic coupler, wherein the elastic coupler and the input side hub are symmetrically distributed; the outer wall of the side, close to the elastic coupler, of the input side hub is provided with a conductor disc assembly b, the conductor disc assembly b is composed of a radiator, an input side steel disc and a copper disc, the input side steel disc and the input side hub are connected and installed through bolts, the radiator is installed on the input side steel disc, the copper disc is installed on the input side steel disc, and the radiator is installed on the input side steel disc. The steel disc is tightly attached to the radiator, and the grooving direction of the radiator is the rotary tangential direction. The device is simple in structure, low in manufacturing cost and convenient to install.

Description

Technical Field

[0001] This invention relates to the field of mechanical transmission components, and in particular to a modular permanent magnet coupler x supported by dual bearings. Background Technology

[0002] A permanent magnet coupler is a device that uses a permanent magnet to generate a magnetic field to achieve torque transmission and speed control without mechanical connection. It is widely used in the power industry, metallurgy industry, petrochemical and chemical industry, mining and cement industry, municipal water affairs, shipbuilding and other fields.

[0003] In the case of horizontal installation, existing permanent magnet couplers require high installation precision because there is no support between the conductor disk and the magnet disk. This necessitates adjusting the motor position to ensure the axial and radial air gaps of the permanent magnet coupler. Furthermore, in cases where a protective cover is required, space constraints make it difficult to meet the specific needs of the installation. Therefore, it is necessary to provide a new modular permanent magnet coupler with dual bearing support to solve the above-mentioned technical problems. Summary of the Invention

[0004] To address the technical problems raised in the background section, this invention provides a modular permanent magnet coupler supported by dual bearings.

[0005] This invention is achieved using the following technical solution: a modular permanent magnet coupler supported by dual bearings, comprising: an input-side hub, a bearing a, a conductor disk assembly b, a magnet disk assembly c, and an elastic coupling symmetrically distributed with respect to the input-side hub; The outer wall of the input-side hub near the flexible coupling is provided with a conductor disk assembly b. The conductor disk assembly b consists of a radiator, an input-side steel disk, and a copper disk. The input-side steel disk is connected to the input-side hub by bolts. The radiator is installed on the input-side steel disk, and the copper disk is installed on the input-side steel disk. The steel disk and the radiator are in close contact. The slotting direction of the radiator is the tangential direction of rotation, so that heat can be dissipated in time to the maximum extent during the movement. Bearings a and adjusting shims are installed at both ends of the magnet disk assembly c. This ensures the relative rotational movement of the magnet disk assembly c and the conductor disk assembly b, while also precisely limiting the axial displacement range of the magnet disk assembly c. The eddy currents between the copper disk and the magnet disk assembly c generate heat, which is transferred to the heat sink through the steel disk. The bearing a adjusts the axial clearance through the input-side hub, bearing cover, and adjusting shims, precisely limiting the axial displacement range of the magnet disk assembly c. The bearing a uses a grease-lubricated sealing structure, which can effectively prevent dust from entering.

[0006] As a further improvement to the above scheme, the magnet disk assembly c is supported by bearing a and forms a permanent magnet coupler body A with the conductor disk assembly b.

[0007] As a further improvement to the above solution, the left claw flange (B1) of the flexible coupling is connected to the magnet disk assembly c, and the right claw flange (B3) is connected to the load end. An elastic body (B2) is provided between the left claw flange (B1) and the right claw flange (B3). During on-site installation, it is only necessary to place the elastic body (B2) of the flexible coupling in the middle and adjust the axial direction of the flange shafts at both ends to complete the installation. The flexible coupling can compensate for the axial deviation, radial deviation and angular deviation generated during the installation process, which greatly reduces the installation difficulty.

[0008] As a further improvement to the above solution, the magnet disk assembly c consists of a permanent magnet, a magnet steel disk, and a magnet disk. When the permanent magnet coupler is started or overloaded, the magnet disk assembly c moves axially through an oil-free bushing.

[0009] As a further improvement to the above solution, the permanent magnet coupler body A is connected to the left claw flange (B1) of the flexible coupling, and the right claw flange (B3) is connected to the load end. During on-site installation, it is only necessary to place the elastic body (B2) of the flexible coupling in the middle and adjust the axial direction of the flange shafts at both ends to complete the installation. The flexible coupling can compensate for the axial deviation, radial deviation and angular deviation generated during the installation process, which greatly reduces the installation difficulty. The permanent magnet coupler body A and the flexible coupling adopt a modular design, which can not only meet the requirements of buffering and vibration reduction and overload protection, but also realize quick assembly and disassembly and easy serialization.

[0010] As a further improvement to the above solution, a bearing cover is installed on the outer wall of the flexible coupling near the input hub. The bearing cover is bolted to the output steel disc, which is connected to the radiator.

[0011] As a further improvement to the above solution, the input-side steel plate and the output-side steel plate are bolted together with the same heat dissipation ring. The outer ring of the heat dissipation ring is machined with multiple grooves to ensure that the temperature of the inner cavity and conductor plate is dissipated in time. By setting the circumferentially closed structure of the heat dissipation ring, a complete heat dissipation path can be constructed in conjunction with the heat sinks on the input and output steel plates. The heat generated during the operation of the permanent magnet coupler can be quickly removed by the heat sink and the heat dissipation ring, which avoids the permanent magnet and bearing a from failing due to high temperature. The circumferential closure effectively isolates the permanent magnet and bearing a from dust, ensuring the reliability of the permanent magnet coupler in continuous working scenarios and improving the service life of the permanent magnet coupler.

[0012] As a further improvement to the above solution, a fixed end cover is bolted to the flexible coupling, and a hub cover plate is bolted to the input side hub. A common transmission sliding shaft is installed between the hub cover plate and the fixed end cover. Two magnet discs are respectively installed on the hub cover plate and the fixed end cover. The transmission sliding shaft passes through the two magnet discs, and an oil-free bushing is provided between the transmission sliding shaft and the magnet discs.

[0013] As a further improvement to the above solution, the permanent magnet is mounted on the magnet disk, and the two magnet steel disks are respectively mounted on the outer wall of the two magnet disks on the side close to each other. The corresponding magnet steel disks are mounted with bases by shoulder screws, and the bases are connected and mounted with swing rods by torsion springs.

[0014] As a further improvement to the above solution, the same mandrel cylinder is installed between the hub cover plate and the fixed end cover.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention, through its dual-bearing support structure, allows for air gap adjustment and axial displacement limitation during the assembly stage, eliminating the need for motor position adjustment. This solves the pain points of high precision requirements and limited space during installation in existing technologies, and improves the smoothness of torque transmission and equipment compatibility. 2. This invention significantly reduces the difficulty of on-site installation through the deviation compensation design of the flexible coupling. Combined with the modularly disassembled permanent magnet coupler body and the flexible coupling, it enables quick assembly and disassembly and convenient maintenance. At the same time, it meets the requirements of buffering, vibration reduction and overload protection, and is easy to mass-produce. 3. This invention constructs an efficient heat dissipation path through the synergistic design of tangential slots in the heat sink and a closed structure in the heat dissipation ring, preventing permanent magnets and bearings from failing due to high temperatures, while also achieving dustproof isolation, significantly improving the reliability and service life of the equipment under harsh working conditions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is an assembly diagram of the heat sink in this invention; Figure 3 This is a schematic diagram of the heat sink structure in this invention; Figure 4 From left to right are a three-dimensional schematic diagram and a front view schematic diagram of the heat dissipation ring in this invention; Figure 5 This is a schematic diagram of the assembly structure of the permanent magnet coupler body, the left claw flange, the elastomer, and the right claw flange of the present invention. Figure 6 This is a schematic diagram of the magnet disk assembly structure in this invention; Figure 7This is a schematic diagram of the conductor disk assembly structure in this invention.

[0017] Explanation of key symbols: 1. Input side hub; 2. Radiator; 3. Input side steel disc; 4. Copper disc; 5. Heat sink ring; 6. Output side steel disc; 7. Bearing cover; 8. Flexible coupling; 9. Fixed end cover; 10. Mandrel cylinder; 11. Conducting sliding shaft; 12. Oil-free bushing; 13. Rocker arm; 14. Torsion spring; 15. Base; 16. Shoulder screw; 17. Magnet steel disc; 18. Permanent magnet; 19. Magnet disc; 20. Hub cover plate; 21. Adjusting shim; a. Bearing; b. Conductor disc assembly; c. Magnet disc assembly; A. Permanent magnet coupler body; B1. Left side claw flange; B2. Elastomer; B3. Right side claw flange. Detailed Implementation

[0018] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0019] Please combine Figures 1 to 7 The modular permanent magnet coupler supported by dual bearings in this embodiment includes: an input side hub 1, a bearing a, a conductor disk assembly b, a magnet disk assembly c, and an elastic coupling 8 symmetrically distributed with the input side hub 1. The outer wall of the input-side hub 1 near the flexible coupling 8 is provided with a conductor disk assembly b. The conductor disk assembly b consists of a radiator 2, an input-side steel disk 3, and a copper disk 4. The input-side steel disk 3 is connected and installed to the input-side hub 1 by bolts. The radiator 2 is installed on the input-side steel disk 3, and the copper disk 4 is installed on the input-side steel disk 3. The steel disk 3 and the radiator 2 are in close contact. The slotting direction of the radiator 2 is the tangential direction of rotation, so that heat can be dissipated in time to the maximum extent during the movement. Bearings a and adjusting shims 21 are installed at both ends of the magnet disk assembly c. This ensures the relative rotational movement of the magnet disk assembly c and the conductor disk assembly b, while also precisely limiting the axial displacement range of the magnet disk assembly c. The eddy current effect between the copper disk 4 and the magnet disk assembly c generates heat, which is transferred to the heat sink 2 through the steel disk 3. The bearing a adjusts the axial clearance through the input-side hub 1, bearing cover 7, and adjusting shims 21, precisely limiting the axial displacement range of the magnet disk assembly c. The bearing a adopts a grease-lubricated sealing structure, which can effectively prevent dust from entering.

[0020] The magnet disk assembly c is supported by bearing a and forms a permanent magnet coupler body A with the conductor disk assembly b.

[0021] In the flexible coupling 8, the left claw flange B1 is connected to the magnet disk assembly c, and the right claw flange B3 is connected to the load end. An elastic body B2 is provided between the left claw flange B1 and the right claw flange B3. During on-site installation, it is only necessary to place the elastic body B2 of the flexible coupling 8 in the middle and adjust the axial direction of the flange shafts at both ends to complete the installation. The flexible coupling 8 can compensate for the axial deviation, radial deviation and angular deviation generated during the installation process, which greatly reduces the installation difficulty.

[0022] The magnet disk assembly c consists of a permanent magnet 18, a magnet steel disk 17, and a magnet disk 19. When the permanent magnet coupler is started or overloaded, the magnet disk assembly c moves axially through the oil-free bushing 12.

[0023] The permanent magnet coupler body A is connected to the left claw flange B1 of the flexible coupling 8, and the right claw flange B3 is connected to the load end. During on-site installation, it is only necessary to place the elastic body B2 of the flexible coupling 8 in the middle and adjust the axial direction of the flange shafts at both ends to complete the installation. The flexible coupling 8 can compensate for the axial deviation, radial deviation and angular deviation generated during the installation process, which greatly reduces the installation difficulty. The permanent magnet coupler body A and the flexible coupling 8 adopt a modular design, which can not only meet the requirements of buffering and vibration reduction and overload protection, but also realize quick assembly and disassembly and easy serialization.

[0024] The flexible coupling 8 has a bearing cover 7 installed on the outer wall near the input hub 1. The bearing cover 7 is bolted to the output steel plate 6, which is connected to the radiator 2.

[0025] The input-side steel plate 3 and the output-side steel plate 6 are connected by bolts to the same heat dissipation ring 5. The outer ring of the heat dissipation ring 5 is machined with multiple grooves to ensure that the temperature of the inner cavity and conductor plate is dissipated in time. By setting the circumferential closed structure of the heat dissipation ring 5, a complete heat dissipation path can be constructed in conjunction with the heat sink 2 on the input and output steel plates. The heat generated during the operation of the permanent magnet coupler can be quickly removed by the heat sink 2 and the heat dissipation ring 5, which prevents the permanent magnet 18 and bearing a from failing due to high temperature. The circumferential closure effectively isolates the permanent magnet 18 and bearing a from dust, ensuring the reliability of the permanent magnet coupler in continuous working scenarios and improving the service life of the permanent magnet coupler.

[0026] A fixed end cover 9 is bolted to the flexible coupling 8, and a hub cover plate 20 is bolted to the input side hub 1. A common transmission sliding shaft 11 is installed between the hub cover plate 20 and the fixed end cover 9. Two magnet disks 19 are respectively installed on the hub cover plate 20 and the fixed end cover 9. The transmission sliding shaft 11 passes through the two magnet disks 19, and an oil-free bushing 12 is provided between the transmission sliding shaft 11 and the magnet disks 19.

[0027] The permanent magnet 18 is mounted on the magnet disk 19, and the two magnet steel disks 17 are respectively mounted on the outer wall of the two magnet disks 19 on the side close to each other. The corresponding magnet steel disk 17 is mounted with a base 15 by a shoulder screw 16, and a swing rod 13 is connected and mounted on the base 15 by a torsion spring 14.

[0028] The same spindle cylinder 10 is installed between the hub cover plate 20 and the fixed end cover 9.

[0029] The working principle of the modular permanent magnet coupler with dual bearing support provided by this invention is as follows: First step: The input side hub 1 drives the conductor disk assembly b to rotate. The copper disk 4 in the conductor disk assembly b and the permanent magnet 18 in the magnet disk assembly c form relative motion. Eddy current magnetic field is generated through electromagnetic induction. The magnetic force is used to achieve torque transmission without mechanical contact. The air gap between the conductor disk assembly b and the magnet disk assembly c ensures zero-wear operation. The magnet disk assembly c is stably supported by the bearings a at both ends. With the help of the hub cover plate 20, the axial displacement range is precisely controlled. The air gap accuracy can be guaranteed without additional adjustment of the motor position. The second step: The left claw flange B1 of the flexible coupling 8 is rigidly connected to the magnet disk assembly c, and the right claw flange B3 is connected to the load end. The elastic body B2 in the middle can compensate for the axial, radial and angular deviations generated during the installation process in real time, reducing the on-site installation accuracy requirements. When the equipment starts or encounters an overload, the magnet disk assembly c moves axially along the transmission sliding shaft 11 through the oilless bushing 12. With the elastic buffering effect of the torsion spring 14 and the swing rod 13, the overload protection function is realized to avoid damage to the transmission components. Third step: During operation, the heat generated by the eddy current effect between the copper disk 4 and the magnet disk assembly c is transferred to the radiator 2 through the input side steel disk 3. The rotating tangential slotted design of the radiator 2 forms a forced airflow when rotating, which accelerates the heat dissipation. At the same time, the heat dissipation ring 5 between the input side steel disk 3 and the output side steel disk 6 adopts a circumferential closed structure and a multi-ring groove design to build a complete heat dissipation path and quickly conduct heat out of the cavity. The closed structure also isolates dust. Combined with the grease-lubricated sealing design of the bearing a, dust protection is achieved, ensuring continuous working reliability.

[0030] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A dual bearing supported modular permanent magnet coupler, characterized by, The utility model relates to a kind of permanent magnet coupling, including: Input side hub, bearing a, conductor disc assembly b, magnet disc assembly c and elastic coupling distributed symmetrically with input side hub; The input side hub is provided with conductor disc assembly b on the side outer wall close to elastic coupling, the conductor disc assembly b is composed of radiator, input side steel disc, copper disc, the input side steel disc is connected and installed with input side hub by bolt, the radiator is installed on input side steel disc, the copper disc is installed on input side steel disc, the steel disc and radiator are closely attached, the slotting direction of the radiator is rotary tangential direction, maximum degree heat is promptly dissipated during movement process; Both ends of the magnet disc assembly c are provided with bearing a and adjusting washer, which can ensure the relative rotation of the magnet disc assembly c and the conductor disc assembly b, and accurately limit the axial displacement range of the magnet disc assembly c, the copper disc and the magnet disc assembly c generate heat through eddy current effect, which is transmitted to the radiator through the steel disc, the bearing a adjusts the axial clearance through the input side hub, bearing cover and adjusting washer, and accurately limits the axial displacement range of the magnet disc assembly c, the bearing a adopts grease lubrication sealing structure, which can effectively prevent dust from entering.

2. The dual bearing supported modular permanent magnet coupler of claim 1, wherein, The magnet disc assembly c is supported by the bearing a to form a permanent magnet coupling body A with the conductor disc assembly b.

3. The dual bearing supported modular permanent magnet coupler of claim 2, wherein, The left flange with claw (B1) in the elastic coupling is connected with the magnet disc assembly c, the right flange with claw (B3) is connected with the load end, and the elastic body (B2) is arranged between the left flange with claw (B1) and the right flange with claw (B3), during on-site installation, only need to place the elastic body (B2) of the elastic coupling in the middle, and adjust the axial direction of the flange shaft at both ends to complete the installation, the elastic coupling can compensate the axial deviation, radial deviation and angular deviation generated during installation, greatly reducing the installation difficulty.

4. The dual bearing supported modular permanent magnet coupler of claim 3, wherein, The magnet disc assembly c is composed of permanent magnet, magnet steel disc and magnet disc, when the permanent magnet coupling starts or overloads, the magnet disc assembly c moves axially through the oil-free bushing.

5. The dual bearing supported modular permanent magnet coupler of claim 3, wherein, The left flange with claw (B1) of the permanent magnet coupling body A is connected with the elastic coupling, the right flange with claw (B3) is connected with the load end, during on-site installation, only need to place the elastic body (B2) of the elastic coupling in the middle, and adjust the axial direction of the flange shaft at both ends to complete the installation, the elastic coupling can compensate the axial deviation, radial deviation and angular deviation generated during installation, greatly reducing the installation difficulty, the permanent magnet coupling body A and the elastic coupling adopt modular design, which can satisfy the functions of buffer vibration reduction and overload protection, and realize quick assembly and disassembly and serialization.

6. The dual bearing supported modular permanent magnet coupler of claim 5, wherein, The bearing cover is installed on the side outer wall close to the input side hub of the elastic coupling, the output side steel disc is connected and installed with the radiator through bolt connection of the bearing cover.

7. The dual bearing supported modular permanent magnet coupler of claim 6 wherein, The same heat dissipation ring is bolted between the input side steel disc and the output side steel disc, a plurality of grooves are formed in the outer ring of the heat dissipation ring, the temperature of the inner cavity and the conductor disc is ensured to be dissipated in time, the circumferential closed structure of the heat dissipation ring is arranged, the heat dissipation path is formed by cooperating with the heat radiator on the input and output steel discs, the heat generated in the working process of the permanent magnet coupler can be quickly taken away by the heat radiator and the heat dissipation ring, the failure of the permanent magnet and the bearing a caused by high temperature is avoided, the circumferential direction is closed, the permanent magnet and the bearing a are effectively separated from dust, the reliability of the permanent magnet coupler in the continuous working scene is ensured, and the service life of the permanent magnet coupler is prolonged.

8. The dual bearing supported modular permanent magnet coupler of claim 4, wherein, The elastic coupling is bolted with a fixed end cover, the input side hub is bolted with a hub cover plate, a same conduction sliding shaft is arranged between the hub cover plate and the fixed end cover, two magnet discs are arranged on the hub cover plate and the fixed end cover respectively, the conduction sliding shaft passes through the two magnet discs, and an oil-free bushing is arranged between the conduction sliding shaft and the magnet disc.

9. The dual bearing supported modular permanent magnet coupler of claim 8, wherein, The permanent magnet is arranged on the magnet disc, two magnet steel discs are arranged on the outer walls of the two magnet discs close to each other, a base is arranged on the corresponding magnet steel disc through a shaft shoulder screw, and a swing rod is arranged on the base through a torsional spring.

10. The dual bearing supported modular permanent magnet coupler of claim 8, wherein, The hub cover plate and the fixed end cover are arranged with a same core shaft cylinder.

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