Single-support speed regulation type magnetic coupler

Abstract

The utility model is suitable for the technical field of magnetic couplers, and provides a single-support speed regulation type magnetic coupler, which comprises an input end coupler fixedly connected with a rotating end of a motor, and an output end coupler fixedly connected with a load end input end, the input end mounting disc is fixedly connected with one end, close to the output end coupler, of the input end coupler, and a magnetizer is fixedly connected with one end, away from the input end coupler, of the input end mounting disc; the end, close to the input end coupler, of the output end coupler is fixedly connected with a magnet installation disc, a plurality of permanent magnets are fixedly connected into the magnet installation disc, and the multiple permanent magnets are arranged in a crossed mode in the circumferential direction of the magnet installation disc according to the N poles and the S poles. The motor is fixedly connected to the adjusting seat, and the adjusting seat is used for adjusting the distance between the permanent magnet and the magnetizer.

Description

Technical Field

[0001] The utility model belongs to the technical field of magnetic couplers, and in particular relates to a single-support speed-regulating magnetic coupler. Background Art

[0002] The design rated parameters of industrial centrifugal equipment are greater than the actual demand, and it is in a constant speed operation state throughout the year. In response to the call of the corresponding country for energy conservation and emission reduction, magnetic couplings have emerged to adapt to this development trend. Permanent magnet eddy current transmission technology is a breakthrough new technology developed internationally in recent years. It is a suitable technology specifically for speed regulation and energy saving of centrifugal equipment. It has a simple structure, energy saving and high efficiency, green and environmental protection, no rigid connection to transmit torque, and can be used in harsh environments, including places with large grid voltage fluctuations, severe harmonics, humidity, dust, etc. It greatly reduces the overall system vibration, reduces system maintenance and extends the system life, and reduces maintenance costs.

[0003] The existing magnetic coupling structures are mainly disc-type and cylinder-type. The cylinder-type coupler relies on adjusting the relative position of the cylindrical magnetic rotor and the cylindrical permanent magnet rotor in the axial direction to change the coupling area of ​​the magnetic rotor and the permanent magnet rotor, change the output torque, and obtain different speeds with different load torques. The disc-type coupler changes the output torque by adjusting the air gap between the permanent magnet rotor and the magnetic rotor, so that different speeds can be obtained with different load torques.

[0004] The magnetic coupler is installed between the motor and the load machine to adjust the speed of the load machine. Most of the existing small-power magnetic couplers adopt a double-disc structure. Due to structural reasons, when the motor fails, the equipment must be shut down for maintenance, affecting the installation and stable operation of the unit. It also requires corresponding additional equipment, power supply, etc., and the installation precision is high and the workload is large. A new structure is needed to meet the requirements and is easy to install.

[0005] Disadvantages of existing disc-type and cylinder-type magnetic couplings: 1. When adjusting the speed of both types of magnetic couplings, the permanent magnet rotor needs to move axially, the overhang ratio is long, and the vibration is large. 2. Both types of magnetic couplings have bearings, which require timely and appropriate grease filling, temperature monitoring, and increased maintenance workload. 3. Both types of magnetic couplings must be shut down for maintenance when there is a problem with the motor. Utility Model Content

[0006] The purpose of the embodiment of the utility model is to provide a single-support speed-regulating magnetic coupler, which can effectively solve the installation and maintenance workload while ensuring the high reliability of the coupler and reduce the magnetic coupler of supporting additional equipment.

[0007] The utility model is implemented as follows: a single-support speed-regulating magnetic coupler comprises an input-end coupling fixedly connected to the rotating end of a motor, and an output-end coupling fixedly connected to the input end of a load end, and further comprises: an input-end mounting disk fixedly connected to one end of the input-end coupling close to the output-end coupling, and one end of the input-end mounting disk away from the input-end coupling is fixedly connected to a magnetic conductor; one end of the output-end coupling close to the input-end coupling is fixedly connected to a magnet mounting disk, and a plurality of permanent magnets are fixedly connected in the magnet mounting disk, and the plurality of permanent magnets are cross-arranged in the circumferential direction of the magnet mounting disk according to N poles and S poles; and further comprises an adjustment seat, the motor is fixedly connected to the adjustment seat, and the adjustment seat is used to adjust the spacing between the permanent magnets and the magnetic conductors.

[0008] According to a further technical solution, a heat sink is fixedly connected to the other end of the input mounting plate.

[0009] According to a further technical solution, a magnet cover is fixedly connected to one end of the magnet mounting disk close to the output end coupling.

[0010] According to a further technical solution, the adjustment seat includes a motor mounting seat and a base plate, the motor is fixedly connected to the upper end of the motor mounting seat; the upper end of the base plate is fixedly connected to two guide rails, the two guide rails are symmetrically arranged, the lower part of the motor mounting seat is slidably connected to the base plate through the two guide rails, and one end of the base plate is fixedly connected to a limiting block; a driving assembly is provided on the base plate, and under the guiding action of the guide rail, the driving assembly is used to drive the motor mounting seat to move on the base plate; a clamping block groove is provided in the guide rail, a clamping block is provided in the clamping block groove, a stop bolt is threadedly connected to the upper end of the guide rail, and the lower end of the stop bolt is rotatably connected to the upper end of the clamping block.

[0011] According to a further technical solution, two installation grooves are arranged on the upper end of the base plate, dustproof plates are fixedly connected to the two installation grooves, dust covers are fixedly connected to both sides of the base plate and the motor mounting seat, and the dust cover and the dustproof plate form an enclosed space.

[0012] According to a further technical solution, the drive assembly includes a ball screw fixing seat fixedly connected to the upper end of the base plate, a ball screw is rotatably connected to the ball screw fixing seat, a handwheel is fixedly connected to one end of the ball screw away from the input end mounting plate, and the ball screw is threadedly matched with the motor mounting seat.

[0013] According to a further technical solution, two guide blocks are fixedly connected to the upper end of the bottom plate, the two guide blocks are symmetrically arranged, and the bottom of the motor mounting seat is provided with two guide grooves that slide with the guide blocks.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The present invention provides a magnetic coupler that can effectively solve the problems of inconvenient installation and high maintenance workload while ensuring the high reliability of the coupler, and reduce the number of supporting additional equipment. The structure is simplified, the complex speed regulation mechanism is eliminated, the axial size is shortened, and the vibration problem caused by the overhang ratio is solved. The supporting additional equipment of the speed-regulating magnetic coupler (such as: control box, lubrication station) is eliminated, and later maintenance is reduced. There is no bearing, and there is no need for daily maintenance and replacement of the bearings, which reduces the maintenance workload and saves costs. Compared with the existing disc structure, the speed regulation range is wider, which can reach 0-97%. Similar to the air preheater equipment, the unit can repair the faulty motor without stopping. There is no need to change the original cement foundation, the transformation workload is reduced, and the installation period is shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a single-support speed-regulating magnetic coupler provided by the utility model;

[0017] Figure 2 The utility model provides Figure 1 Structural schematic diagram of the middle adjustment seat;

[0018] Figure 3 The utility model provides Figure 2 Schematic diagram of the cross-sectional structure from the middle AA perspective;

[0019] Figure 4 The utility model provides Figure 1 Schematic diagram of the structure of the input end coupling and the output end coupling.

[0020] In the attached figure: handwheel-1, ball screw-2, dust cover-3, motor mounting seat-4, ball screw fixing seat-5, limit block-6, guide rail-7, base plate-8, clamping block-9, guide block-10, dust plate-11, input end coupling-12, input end mounting plate-13, magnetizer-14, heat sink-15, magnet mounting plate-16, magnet cover-17, permanent magnet-18, output end coupling-19, load end-20, motor-21. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0023] like Figure 1-Figure 4As shown, a single-support speed-regulating magnetic coupling is provided by an embodiment of the utility model, including an input-end coupling 12 fixedly connected to the rotating end of a motor 21, and an output-end coupling 19 fixedly connected to the input end of a load end 20, and also including: an input-end mounting disk 13 fixedly connected to one end of the input-end coupling 12 close to the output-end coupling 19, and a magnet 14 fixedly connected to one end of the input-end mounting disk 13 away from the input-end coupling 12; a magnet mounting disk 16 fixedly connected to one end of the output-end coupling 19 close to the input-end coupling 12, and a plurality of permanent magnets 18 fixedly connected in the magnet mounting disk 16, and the plurality of permanent magnets 18 are cross-arranged in the circumferential direction of the magnet mounting disk 16 according to the N pole and the S pole; and also including an adjustment seat, the motor 21 is fixedly connected to the adjustment seat, and the adjustment seat is used to adjust the distance between the permanent magnet 18 and the magnet 14.

[0024] In the embodiment of the utility model, when in use, the adjustment seat adjusts the distance between the permanent magnet 18 and the magnetizer 14 to change the output torque, the motor 21 drives the input end coupling 12 to rotate, the input end coupling 12 drives the input end mounting disk 13 to rotate, the input end mounting disk 13 drives the magnetizer 14 to rotate, the magnetizer 14 drives the magnet mounting disk 16 to rotate through the magnetic force between the permanent magnet 18, the magnet mounting disk 16 drives the output end coupling 19 to rotate, and the output end coupling 19 drives the rotating end of the load end 20 to rotate.

[0025] like Figure 1 and Figure 4 As shown, as a preferred embodiment of the present utility model, the other end of the input end mounting plate 13 is fixedly connected with a heat sink 15 .

[0026] In the embodiment of the utility model, since the induced eddy current generated by the magnetizer 14 when cutting the magnetic lines generates a large amount of heat and the speed regulation loss power is converted into thermal energy, the heat sink 15 is used to dissipate the heat of the magnetizer 14 to ensure the normal operation of the magnetic coupler and avoid demagnetization of the permanent magnet 18 due to high temperature.

[0027] like Figure 1 and Figure 4 As shown, as a preferred embodiment of the present utility model, a magnet cover 17 is fixedly connected to one end of the magnet mounting plate 16 close to the output end coupling 19 .

[0028] In the embodiment of the utility model, the permanent magnet 18 is fixed in the magnet mounting plate 16, and the magnet cover 17 is installed on the surface of the mounting plate 16 to promote the permanent magnet 18 to form a closed magnetic field line and prevent magnetic leakage.

[0029] like Figure 1-Figure 3As shown, as a preferred embodiment of the utility model, the adjustment seat includes a motor mounting seat 4 and a base plate 8, and the motor 21 is fixedly connected to the upper end of the motor mounting seat 4; two guide rails 7 are fixedly connected to the upper end of the base plate 8, and the two guide rails 7 are symmetrically arranged, and the lower part of the motor mounting seat 4 is slidably connected to the base plate 8 through the two guide rails 7, and one end of the base plate 8 is fixedly connected to the limiting block 6; a driving assembly is provided on the base plate 8, and under the guiding action of the guide rail 7, the driving assembly is used to drive the motor mounting seat 4 to move on the base plate 8; a clamping block groove is provided in the guide rail 7, and a clamping block 9 is provided in the clamping block groove, and a stop bolt is threadedly connected to the upper end of the guide rail 7, and the lower end of the stop bolt is rotatably connected to the upper end of the clamping block 9.

[0030] In the embodiment of the utility model, under the guiding action of the guide rail 7, the driving assembly is used to drive the motor mounting seat 4 to move on the base plate 8, the motor mounting seat 4 drives the motor 21 to move, and the motor 21 drives the input end coupling 12 to move, thereby adjusting the distance between the magnetizer 14 and the permanent magnet 18, and then the stop bolt is rotated, and the stop bolt drives the clamping block 9 to move downward through threaded transmission, so that the clamping block 9 is against the motor mounting seat 4, limiting the movement of the motor mounting seat 4, and preventing the vibration of the motor mounting seat 4 from causing damage to the guide rail 7, the guide block 10 and the ball screw 2, thereby affecting the service life of the components.

[0031] like Figure 1-Figure 3 As shown, as a preferred embodiment of the utility model, two mounting grooves are provided on the upper end of the base plate 8, and dustproof plates 11 are fixedly connected in the two mounting grooves. Dust covers 3 are fixedly connected on both sides of the base plate 8 and the motor mounting seat 4, and the dust cover 3 and the dustproof plates 11 form a closed space.

[0032] In the embodiment of the utility model, the dust cover 3 and the dust plate 11 form a closed space, which reduces the workload of daily maintenance and grease filling, and can also prevent dust and gravel from falling into the guide rail 7 and the base plate 8 at the equipment site, causing the motor mounting seat 4 to be stuck, the handwheel 1 to have a large operating torque, or damage the ball screw 2.

[0033] like Figure 1-Figure 3 As shown, as a preferred embodiment of the utility model, the driving assembly includes a ball screw fixing seat 5 fixedly connected to the upper end of the base plate 8, the ball screw fixing seat 5 is rotatably connected to the ball screw 2, the end of the ball screw 2 away from the input end mounting plate 13 is fixedly connected to the handwheel 1, and the ball screw 2 is threadedly matched with the motor mounting seat 4.

[0034] In the embodiment of the utility model, the hand wheel 1 is rotated, the hand wheel 1 drives the ball screw 2, and the ball screw 2 drives the motor mounting seat 4 to move through thread transmission.

[0035] like Figure 1-Figure 3 As shown, as a preferred embodiment of the utility model, two guide blocks 10 are fixedly connected to the upper end of the base plate 8, the two guide blocks 10 are symmetrically arranged, and two guide grooves that slide with the guide blocks 10 are arranged at the bottom of the motor mounting seat 4.

[0036] In the embodiment of the utility model, the guide rail 7 and the guide block 10 are combined to ensure that the motor mounting seat 4 can move axially continuously and smoothly according to a predetermined trajectory.

[0037] The utility model provides a single-support speed-regulating magnetic coupler in the above embodiment. When in use, under the guidance of the guide rail 7 and the guide block 10, the hand wheel 1 is rotated, the hand wheel 1 drives the ball screw 2, the ball screw 2 drives the motor mounting seat 4 to move through the thread transmission, the motor mounting seat 4 drives the motor 21 to move, the motor 21 drives the input end coupling 12 to move, thereby adjusting the distance between the magnetizer 14 and the permanent magnet 18 to change the output torque, and then the stop bolt is rotated, and the stop bolt is driven by the thread transmission. The pressing block 9 is driven downward in a dynamic manner, so that the pressing block 9 is against the motor mounting seat 4, limiting the movement of the motor mounting seat 4, and the motor 21 drives the input end coupling 12 to rotate, the input end coupling 12 drives the input end mounting disk 13 to rotate, the input end mounting disk 13 drives the magnetizer 14 to rotate, the magnetizer 14 drives the magnet mounting disk 16 to rotate through the magnetic force between it and the permanent magnet 18, the magnet mounting disk 16 drives the output end coupling 19 to rotate, and the output end coupling 19 drives the rotating end of the load end 20 to rotate.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A single-support speed-regulating magnetic coupling, comprising an input coupling fixedly connected to the motor rotating end, and an output coupling fixedly connected to the load input end, characterized in that: Also includes: An input-end mounting plate is fixedly connected to one end of the input-end coupling close to the output-end coupling, and a magnetic conductor is fixedly connected to one end of the input-end mounting plate away from the input-end coupling; One end of the output coupling close to the input coupling is fixedly connected with a magnet mounting disk, and a plurality of permanent magnets are fixedly connected inside the magnet mounting disk, and the plurality of permanent magnets are cross-arranged in the circumferential direction of the magnet mounting disk according to N poles and S poles; It also includes an adjustment seat, the motor is fixedly connected to the adjustment seat, and the adjustment seat is used to adjust the distance between the permanent magnet and the magnetizer.

2. The single-support speed-regulating magnetic coupler according to claim 1, characterized in that: The other end of the input end mounting plate is fixedly connected with a heat sink.

3. The single-support speed-regulating magnetic coupler according to claim 1, characterized in that: A magnet cover is fixedly connected to one end of the magnet mounting disk close to the output end coupling.

4. The single-support speed-regulating magnetic coupler according to claim 1, characterized in that: The adjustment seat includes a motor mounting seat and a bottom plate, and the motor is fixedly connected to the upper end of the motor mounting seat; The upper end of the bottom plate is fixedly connected to two guide rails, the two guide rails are symmetrically arranged, the lower part of the motor mounting seat is slidably connected to the bottom plate through the two guide rails, and one end of the bottom plate is fixedly connected to a limit block; The bottom plate is provided with a driving assembly, and under the guidance of the guide rail, the driving assembly is used to drive the motor mounting seat to move on the bottom plate; A clamping block groove is arranged in the guide rail, a clamping block is arranged in the clamping block groove, a stop bolt is threadedly connected to the upper end of the guide rail, and the lower end of the stop bolt is rotatably connected to the upper end of the clamping block.

5. The single-support speed-regulating magnetic coupler according to claim 4, characterized in that: Two mounting grooves are arranged at the upper end of the bottom plate, dustproof plates are fixedly connected in the two mounting grooves, dustproof covers are fixedly connected on both sides of the bottom plate and the motor mounting seat, and the dustproof covers and the dustproof plates form a closed space.

6. The single-support speed-regulating magnetic coupler according to claim 4, characterized in that: The driving assembly includes a ball screw fixing seat fixedly connected to the upper end of the base plate, a ball screw is rotatably connected to the ball screw fixing seat, a hand wheel is fixedly connected to one end of the ball screw away from the input end mounting plate, and the ball screw is threadedly matched with the motor mounting seat.

7. The single-support speed-regulating magnetic coupler according to claim 4, characterized in that: The upper end of the bottom plate is fixedly connected to two guide blocks, which are symmetrically arranged. The bottom of the motor mounting seat is provided with two guide grooves which are slidably matched with the guide blocks.

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