Vertical rotating speed adjusting device and vertical cage type outer rotor magnetic coupler

By designing a speed adjustment device and a floating cage assembly for a vertical magnetic coupler, the problems of the large area of ​​the vertical magnetic coupler, the thermal deformation affects the service life and the long heat dissipation path of the outer rotor in the prior art are solved, and long-term stable operation under large slip and large heat generation conditions are achieved.

CN223039878UActive Publication Date: 2025-06-27DALIAN JIAOTONG UNIVERSITY
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Patent Information

Application Number
CN202422104785.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-29
Publication Date
2025-06-27
Estimated Expiration
2034-08-29

AI Technical Summary

Technical Problem

The speed adjustment devices of existing magnetic couplers are mostly horizontal axis direction and cover a large area; and the thermal deformation caused by different thermal expansion coefficients of materials affects the service life; the external rotor heat dissipation path is long, which causes heat to not be dissipated in time, and it is difficult to process and manufacture.

Method used

A speed adjustment device that moves along the vertical axis is designed, including guide columns, bearing press plates, unidirectional thrust ball bearings, large round nuts, floating plates, inner cone sleeves, outer cone sleeves, tension bolts and shims, for use in vertical cage-shaped outer rotor magnetic coupler. The floating cage strip assembly can be reciprocated in the groove shape of the outer yoke, driving the end ring to offset the influence of thermal deformation and accelerate heat dissipation through materials with good thermal conductivity.

Benefits of technology

It realizes long-term operation under conditions of large slip, large heat generation and vertical rotation speed adjustment, solves the difficulties in processing and manufacturing of cage outer rotors and thermal deformation problems, and is not affected by slip heating and vertical power unit operation accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of magnetic couplers, and provides a vertical rotating speed adjusting device and a vertical cage type outer rotor magnetic coupler, the vertical rotating speed adjusting device comprises a guide pillar, a bearing pressing plate, a one-way thrust ball bearing, a large round nut, a floating plate, an inner taper sleeve, an outer taper sleeve, a tension bolt and a sizing block; the multiple guide columns are evenly distributed in the circumferential direction of the floating plate. The plurality of tension bolts are uniformly distributed in the circumferential direction of the floating plate; the inner taper sleeve is fixedly connected to the floating plate; the inner taper sleeve is sleeved on the excircle surface of the outer taper sleeve; the outer taper sleeve is arranged on the top of the guide column in a sleeving mode and located below the one-way thrust ball bearing, an outer taper structure matched with the inner taper sleeve is manufactured at the tail end of the outer circle surface of the outer taper sleeve, and a center blind hole structure is arranged at the top end of the outer circle surface of the outer taper sleeve. The axial adjusting device can move along the direction of the vertical shaft, so that the operation space is saved; according to the magnetic coupler, the cage bars are designed to be of a floating structure, and the thermal deformation influence formed by all parts of the magnetic coupler can be offset or compensated.
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Description

Technical Field

[0001] The utility model relates to the technical field of magnetic couplers, in particular to a vertical speed regulating device and a vertical cage-type outer rotor magnetic coupler. Background Art

[0002] Most of the speed regulating devices of the existing speed regulating magnetic couplers are in the horizontal axis direction. When the motor and the load are horizontally connected by the magnetic coupler, the floor area is relatively large. In order to save the operating space, more and more factories and mines adopt the vertical connection between the motor and the load. Therefore, it is necessary to provide an axial regulating device that can move along the vertical axis and apply it to the magnetic coupler for vertical axis speed regulation.

[0003] The existing magnetic couplers all adopt slip speed regulation. When the slip is large, the heat generated will cause different degrees of thermal deformation of the components of the magnetic coupler; due to the different thermal expansion coefficients of the components, it is easy to cause the cage bars, the weakest link in the cage-type rotor, to be stuck or shelled, seriously affecting the service life of the magnetic coupler;

[0004] Most of the existing cage-type rotor magnetic couplers are of the external squirrel-cage structure, and its heat conduction path is: cage bar - yoke iron - heat dissipation fin; in order to ensure the structural strength, generally the yoke height of the external yoke iron is relatively high, resulting in a long heat dissipation path from the cage bar to the heat dissipation fin on the outer rotor, and the heat generated by the cage bar cannot be dissipated in time and effectively. In addition, compared with the internal rotor squirrel-cage structure, the end ring of the cage-type outer rotor is surrounded by the yoke of the outer rotor, resulting in difficulties in manufacturing and relatively high process costs for both cast aluminum rotors and copper bar rotors.

[0005] Therefore, there is an urgent need for a vertical magnetic coupler and a speed regulating device that can solve the above problems. Summary of the Utility Model

[0006] The utility model mainly solves the problems of large floor area when the existing motor and load are horizontally connected by a magnetic coupler, the reduction of the service life of the magnetic coupler caused by the material deformation formed due to the different thermal expansion coefficients of the existing magnetic coupler materials, and the long heat dissipation path resulting in the inability to dissipate heat in time and effectively. The utility model provides a vertical speed regulating device and a vertical cage-type outer rotor magnetic coupler, which solve the problem of difficult processing and manufacturing of the cage-type outer rotor, and are not affected by slip heating and the operating accuracy of the vertical power unit 17, and can operate for a long time under the working conditions of large slip, large heat generation and the need for vertical speed regulation.

[0007] The utility model provides a speed regulating device that moves along the vertical axis, including: a guide post, a bearing pressing plate, a single-direction thrust ball bearing, a large round nut, a floating plate, an inner conical sleeve, an outer conical sleeve, a tension bolt and a shim;

[0008] Multiple guide posts are evenly distributed in the circumferential direction of the floating plate; multiple tension bolts are evenly distributed in the circumferential direction of the floating plate;

[0009] The bearing pressure plate is of a circular structure, has a central blind hole, and is connected to the large circular nut;

[0010] The one-way thrust ball bearing is sleeved on the top of the guide post; the upper surface of the one-way thrust ball bearing is installed in the central blind hole of the bearing pressure plate, and the lower surface is installed in the blind hole on the top surface of the outer cone sleeve;

[0011] The large circular nut has an internal thread structure and forms a thread pair with the external thread structure of the inner cone sleeve;

[0012] The floating plate is of a circular structure; the surface of the floating plate is provided with round holes that match the outer surface of the inner cone sleeve and circular through holes that allow the tension bolts to pass through;

[0013] The inner cone sleeve is fixedly connected to the floating plate; the inner cone sleeve is sleeved on the outer circular surface of the outer cone sleeve; the central hole of the inner cone sleeve is a tapered through hole, and the end of the inner circular surface of the inner cone sleeve has an inner tapered structure that matches the outer cone sleeve;

[0014] The outer cone sleeve is sleeved on the top of the guide post and is located below the one-way thrust ball bearing. The end of the outer circular surface of the outer cone sleeve is provided with an outer tapered structure that matches the inner cone sleeve, and the top of the outer circular surface of the outer cone sleeve has a central blind hole structure;

[0015] The tension bolt is of a full-thread structure, and its screw rod structure passes through the circular through hole of the floating plate;

[0016] The shim is of an open structure. Multiple shims are inserted onto the tension bolt, and the shims are located below the floating plate.

[0017] Preferably, the guide post is of a stepped shaft structure, and the bottom end of the guide post is fixed by a guide post screw and a guide post spring washer.

[0018] Preferably, the inner cone sleeve is fixedly connected to the floating plate by an inner cone sleeve screw and an inner cone sleeve spring washer.

[0019] Preferably, the upper part of the tension bolt is fixed to the floating plate 5 by a round nut and a round nut lock washer.

[0020] Preferably, a vertical axial power unit is provided on the floating plate;

[0021] The vertical axial power unit is used to connect multiple power devices.

[0022] Correspondingly, the present utility model further provides a magnetic coupling device, comprising: an outer rotor assembly, a middle cover assembly, and a vertical speed regulating device. The outer rotor assembly is located inside the middle cover assembly, and the vertical speed regulating device is located above the middle cover assembly;

[0023] The outer rotor assembly includes a floating cage bar assembly, an outer sleeve, and heat dissipation fins;

[0024] The floating cage bar assembly includes floating cage bars, an outer yoke, a left end ring, and a right end ring; the outer yoke is made of a ferromagnetic material (such as 45 steel), and grooves with the same shape as the floating cage bars are evenly distributed thereon; the floating cage bars are evenly installed in the corresponding grooves of the outer yoke; the floating cage bars are made of a good conductor material (such as industrial pure aluminum or copper T2), and its left and right ends are respectively fixedly connected to the left end ring and the right end ring. The left end ring and the right end ring are also made of a good conductor material consistent with the floating cage bars (such as industrial pure aluminum or copper T2), and they are jointly installed in the inner hole formed by the outer sleeve with the floating cage bar assembly where they are located; wherein, the left end ring and the right end ring maintain a uniform floating distance from the outer sleeve in the radial direction; and the outer circular part of the outer yoke is pressed into the inner hole formed by the outer sleeve in an interference fit manner;

[0025] The outer sleeve is of a cylindrical structure, and heat dissipation fins with good thermal conductivity are evenly distributed on its outer circular surface. Its inner hole can form an interference fit with the outer yoke; the outer sleeve can be made of an iron material with good magnetic conductivity (such as 45 steel), or an aluminum alloy material with good thermal conductivity (such as aviation aluminum or carbon fiber); the heat dissipation fins are made of a material with good thermal conductivity, and their substrates are evenly installed on the outer circular surface of the outer sleeve.

[0026] When the magnetic coupling device undergoes thermal deformation of each component due to heat generation, the floating cage bars will reciprocate along the corresponding grooves of the outer yoke, and drive the left end ring and the right end ring to reciprocate, so as to offset or compensate the influence of the thermal deformation formed by each component of the magnetic coupling device. When the coupling device operates in a working environment with a large slip for a long time, an aluminum alloy (such as aviation aluminum or carbon fiber) material with good thermal conductivity and meeting the structural strength requirements can be used to timely export the heat generated by the heating element (cage bar).

[0027] Preferably, the middle cover assembly includes: an upper plate, a lower plate, and a plurality of vertical plates;

[0028] Both the upper plate and the lower plate are of circular structures; both the upper plate and the lower plate are provided with coaxially circular through holes, and the upper plate and the lower plate are fixedly connected by a plurality of vertical plates;

[0029] A plurality of vertical plates are evenly distributed between the upper plate and the lower plate.

[0030] Preferably, the guide post of the rotational speed adjusting device is fixedly connected to the upper plate of the middle cover assembly through a guide post screw and a guide post spring washer.

[0031] Preferably, a motor is installed on the upper surface of the floating plate; the shaft extension of the motor is supported by an upper bearing support;

[0032] An inner rotor is installed on the shaft extension of the motor.

[0033] Preferably, the outer rotor is supported by a lower bearing support, and the shaft extension of the outer rotor is fixedly connected to the shaft extension of the load through a coupling; the lower plate in the middle cover assembly is fixedly connected to the load support.

[0034] Preferably, a protective net is also covered outside the middle cover assembly to prevent the components in the vertical outer rotor cage-type magnetic coupler from being thrown out and hurting people.

[0035] The vertical rotational speed adjusting device and the vertical cage-type outer rotor magnetic coupler of the present invention have the following advantages compared with the prior art:

[0036] 1. The present invention solves the problem of difficult manufacturing of the cage-type outer rotor. The reason is that: the present invention decomposes the cage-type outer rotor assembly into two parts, an outer sleeve and a floating cage bar assembly, and the floating cage bar assembly can be produced (or processed) by using the manufacturing method of the squirrel-cage rotor of a common motor.

[0037] 2. The present invention is applicable to the working conditions where the magnetic coupler components have large deformations caused by slip heating when the slip is large. When the magnetic coupler forms large thermal deformations due to heating, the floating cage bars will reciprocate in the groove of the outer yoke iron in the cage bar assembly, and drive the left end ring and the right end ring to reciprocate, so as to offset or compensate the influence of the thermal deformations formed by the components of the magnetic coupler; at the same time, the left end ring and the right end ring will also generate radial deformations to offset the thermal deformation influence of the floating cage bars.

[0038] When the magnetic coupler needs to adjust the rotational speed vertically, it can also be divided into the following two situations:

[0039] (1) When the operating precision of the multiple power modules constituting the vertical power unit is not high, the radial clearance between the guide post and the inner cone sleeve can be enlarged by pulling out the outer cone sleeve, so that the floating plate does not get stuck when moving up and down.

[0040] (2) When the operating precision of the multiple power modules constituting the vertical power unit is relatively high, the measures in the first situation can be not taken, and the vertical power unit can directly drive the floating plate to generate vertical movement along the guide post.

[0041] In summary, the utility model solves the problem of difficult processing and manufacturing of the cage-type outer rotor, and is not affected by slip heating and the operating accuracy of the vertical power unit, and can operate for a long time under the working conditions of large slip, large heat generation and the need for vertical speed regulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a schematic structural diagram of a vertical cage-type outer rotor magnetic coupler;

[0043] Figure 2 is a schematic structural diagram of a vertical speed regulation device;

[0044] Figure 3 is Figure 2 a partial enlarged view of;

[0045] Figure 4 is Figure 2 a schematic A-A sectional view of;

[0046] Figure 5 is a sectional view of the outer rotor assembly;

[0047] Figure 6 is Figure 5 a schematic B-B sectional view of.

[0048] In the figure: 1, guide post; 2, bearing pressing plate; 3, single-direction thrust ball bearing; 4, large round nut; 5, floating plate; 6, inner taper sleeve; 7, inner taper sleeve screw; 8, inner taper sleeve spring washer; 9, guide post screw; 10, guide post spring washer; 11, upper plate; 12, outer taper sleeve; 13, tension bolt; 14, round nut; 15, round nut locking washer; 16, packing iron; 17, vertical axial power unit; 18, outer sleeve; 19, lower plate; 20, load support; 21, load shaft extension; 22, lower bearing support; 23, vertical plate; 24, magnetic coupler inner rotor; 25, motor; 26, upper bearing support; 27, coupling; 28, outer rotor shaft extension; 29, floating cage bar; 30, right end ring; 31, left end ring; 32, outer yoke; 33, heat dissipation fin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0049] To make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that, for the sake of description, only parts related to the present utility model are shown in the drawings rather than all of the content.

[0050] Embodiment 1

[0051] As Figures 2-4As shown in the figure, the vertical speed regulating device provided by the embodiment of the present utility model includes: a guide post 1, a bearing pressing plate 2, a single-direction thrust ball bearing 3, a large round nut 4, a floating plate 5, an inner tapered sleeve 6, an outer tapered sleeve 12, a tension bolt 13 and a shim 16.

[0052] A plurality of guide posts 1 are evenly distributed in the circumferential direction of the floating plate 5; a plurality of tension bolts 13 are distributed in the circumferential direction of the floating plate 5; in this embodiment, the guide posts 1 are arranged as Figure 4 shown, four evenly distributed ones, and the tension bolts 13 are arranged as Figure 4 shown, eight evenly distributed ones, and two tension bolts 13 are arranged between adjacent guide posts 1.

[0053] The said guide post 1 has a stepped shaft structure, and the bottom end of the guide post 1 is fixed by a guide post screw 9 and a guide post spring washer 10, specifically fixed on the upper plate 11 of the middle cover assembly of the magnetic coupler.

[0054] The said bearing pressing plate 2 has a circular structure, the bearing pressing plate 2 has a central hole and a central blind hole, and the bearing pressing plate 2 is connected with the large round nut 4 by screws;

[0055] The said single-direction thrust ball bearing 3 is a standard part; the single-direction thrust ball bearing 3 is sleeved on the top of the guide post 1; the upper surface of the said single-direction thrust ball bearing 3 is installed in the central blind hole of the bearing pressing plate 2, and the lower surface is installed in the blind hole on the top surface of the outer tapered sleeve 12;

[0056] The said large round nut 4 has an internal thread structure, and forms a thread pair with the external thread structure of the inner tapered sleeve 6;

[0057] The said floating plate 5 has a circular structure; the surface of the floating plate 5 is made with round holes matching the outer surface of the inner tapered sleeve 6 and circular through holes allowing the tension bolts 13 to pass through;

[0058] The said inner tapered sleeve 6 has a stepped shaft structure, and the inner tapered sleeve 6 is fixedly connected to the floating plate 5; specifically, the inner tapered sleeve 6 is fixedly connected to the floating plate 5 by an inner tapered sleeve screw 7 and an inner tapered sleeve spring washer 8. The inner tapered sleeve 6 is sleeved on the outer circular surface of the outer tapered sleeve 12; the central hole of the inner tapered sleeve 6 is a tapered through hole, and the end of the inner circular surface of the inner tapered sleeve 6 has an inner tapered structure adapted to the outer tapered sleeve 12;

[0059] The said outer tapered sleeve 12 has a stepped shaft structure, and its central hole is a through hole structure. The outer tapered sleeve 12 is sleeved on the top of the guide post 1 and is located below the single-direction thrust ball bearing 3. The end of the outer circular surface of the outer tapered sleeve 12 is made with an outer tapered structure adapted to the inner tapered sleeve 6, and the top of the outer circular surface of the outer tapered sleeve 12 has a central blind hole structure; the stepped shaft axis, central hole, outer taper and central blind hole of the outer tapered sleeve 12 are all on the same axis;

[0060] The tension bolt 13 is of a full-thread structure. Its hexagonal head is placed at the bottom of the upper plate 11, and its screw structure passes through the circular through-hole of the floating plate 5. The upper part of the tension bolt 13 is fixed to the floating plate 5 by a round nut 14 and a round nut lock washer 15. Both the round nut 14 and the round nut lock washer 15 are standard parts.

[0061] The shim block 16 is of an open structure. Multiple shim blocks 16 are inserted onto the tension bolt 13. The shim block 16 is located below the floating plate 5, that is, the shim block 16 is inserted into the space formed by the floating plate 5, the upper plate 11, and the tension bolt 13.

[0062] A vertical axial power unit 17 is provided on the floating plate 5. The vertical axial power unit 17 is used to connect multiple power devices and can provide axial movement in the vertical direction. Multiple power devices are, for example, multiple jack linkage devices or multiple linear motor linkage devices, etc. As Figure 4 shown, there are 4 vertical axial power units 17 in this embodiment.

[0063] For the rotational speed adjusting device that moves along the vertical axis direction in this embodiment, when the vertical axial power unit 17 generates vertical axial movement, it can be divided into two cases:

[0064] (1) When the operating precision of multiple power devices that make up the vertical axial power unit 17 is not high (such as multiple jack linkage devices), the large round nut 4 can be unscrewed to disengage it from the inner cone sleeve 6, the single-direction thrust ball bearing 3 can be taken out, and then the outer cone sleeve 12 can be pulled out using a bearing disassembly tool. At this time, there is a large gap between the guide post 1 and the tapered through-hole of the inner cone sleeve 6 in the radial direction. Therefore, even if the operating movement precision of multiple power devices that make up the vertical axial power unit 17 is not high, the vertical axial movement generated by them will not cause jamming when the floating plate 5 moves up and down.

[0065] When the vertical power unit 17 adjusts the floating plate 5 to the required height, the shim block 16 can be embedded between the floating plate 5 and the upper plate 11 through the tension bolt 13; then the single-direction thrust ball bearing 3 is reinstalled into the central blind hole of the bearing pressing plate 2 and the large round nut 4, and then the large round nut 4 is tightened to make the outer cone sleeve 12 and the inner cone sleeve 6 have a taper fit that does not cause them to disengage; due to the precise fit and positioning of the taper fit, the radial clearance uniformity between the inner rotor 24 of the magnetic coupling and the floating cage bar assembly can be accurately guaranteed through the taper fit, that is: the coaxiality requirement between the inner rotor 24 of the magnetic coupling and the floating cage bar assembly is ensured; finally, by tightening the round nut 14, the tension bolt 13 generates a force to compact the gap between the floating plate 5, the shim block 16, and the upper plate 11.

[0066] (2) When the operating precision of multiple power devices in the vertical axial power unit 17 is relatively high (such as a linear motor linkage device), the measures of the first case may not be taken, and the vertical axial power unit 17 can directly drive the floating plate 5 to generate a vertical axial movement along the guide column 1.

[0067] The speed regulating device for moving along the vertical axis provided by the present utility model is applicable to both the outer rotor cage type (or squirrel cage) structure and the inner rotor cage type (or squirrel cage) structure.

[0068] Embodiment 2

[0069] As Figure 1 、 Figure 5 and Figure 6 As shown, the vertical cage type outer rotor magnetic coupler provided by the embodiment of the present utility model includes: an outer rotor assembly 18, a middle cover assembly, and a speed regulating device for moving along the vertical axis provided by any embodiment of the present utility model.

[0070] The outer rotor assembly includes a floating cage bar assembly, an outer sleeve 18, and heat dissipation fins 33;

[0071] The floating cage bar assembly includes floating cage bars 29, an outer yoke 32, a left end ring 31, and a right end ring 30; the outer yoke 32 is made of a ferromagnetic material, and grooves having the same shape as the floating cage bars 29 are uniformly distributed thereon; the floating cage bars 29 are uniformly installed in the corresponding grooves of the outer yoke 32; the floating cage bars 29 are made of a good conductor material, and the left and right ends thereof are respectively fixedly connected to the left end ring 31 and the right end ring 30. The left end ring 31 and the right end ring 30 are made of a good conductor material, and they and the floating cage bar assembly where they are located are jointly installed in the inner hole formed by the outer sleeve 18; wherein, the left end ring 31 and the right end ring 30 maintain a uniform floating distance from the outer sleeve 18 in the radial direction; and the outer circular part of the outer yoke 32 is pressed into the inner hole formed by the outer sleeve 18 in an interference fit manner;

[0072] The outer sleeve 18 is of a cylindrical structure, and heat dissipation fins 33 with good thermal conductivity are uniformly distributed on its outer circular surface. Its inner hole can form an interference fit with the outer yoke 32; the outer sleeve 18 can be made of an iron material with good magnetic conductivity or an aluminum alloy material with good thermal conductivity; the heat dissipation fins 33 are made of a material with good thermal conductivity, and their substrates are uniformly installed on the outer circular surface of the outer sleeve 18.

[0073] When the magnetic coupling causes thermal deformation of each component due to heating, the floating cage bar 29 will reciprocate along the groove corresponding to the outer yoke 32, driving the left end ring 31 and the right end ring 30 to reciprocate, so as to offset or compensate for the thermal deformation effect formed by each component of the magnetic coupling. When the coupling operates in a working environment with a large slip for a long time, an aluminum alloy (such as aviation aluminum or carbon fiber) material with good thermal conductivity and meeting the structural strength requirements can be used to timely conduct the heat generated by the heating element (cage bar).

[0074] The floating cage bar assembly provided by the utility model is applicable to both the outer rotor cage type (or squirrel cage) structure and the inner rotor cage type (or squirrel cage) structure.

[0075] The middle cover assembly includes: an upper plate 11, a lower plate 19, a plurality of vertical plates 23 and a protective net; both the upper plate 11 and the lower plate 19 are circular structures; both the upper plate 11 and the lower plate 19 are provided with circular through holes with the same axis. The upper plate 11 and the lower plate 19 are fixedly connected through a plurality of vertical plates 23, and the upper plate 11 and the lower plate 19 are fixedly connected into an integral structure through the vertical plates 23; the plurality of vertical plates 23 are evenly distributed between the upper plate 11 and the lower plate 19. The guide post 1 of the speed regulating device is fixedly connected to the upper plate 11 of the middle cover assembly through a guide post screw 9 and a guide post spring washer 10. A protective net is also covered outside the middle cover assembly to prevent the components in the vertical outer rotor cage type magnetic coupling from being thrown out and hurting people.

[0076] The upper surface of the floating plate 5 is equipped with a motor 25; the shaft extension of the motor 25 is supported by an upper bearing support 26; an inner rotor 24 is installed on the shaft extension of the motor 25.

[0077] The outer rotor is supported by a lower bearing support 22, and the outer rotor shaft extension 28 is fixedly connected to the load shaft extension 21 through a coupling 27; the lower plate 19 in the middle cover assembly is fixedly connected to the load support 20.

[0078] The working principle of the magnetic coupling in this embodiment:

[0079] The motor 25 is installed on the upper surface of the floating plate 5; the upper bearing support 26 is installed on the lower surface of the floating plate 5; the inner rotor 24 of the magnetic coupling is fixedly connected to the shaft extension of the motor 25, and the shaft extension of the motor is supported by the upper bearing support 26; when the vertical power unit 17 operates, the motor 25, the bearing support 26 and the inner rotor 24 can all move vertically up and down along the guide post 1 with the floating plate 5.

[0080] The outer rotor assembly is supported by a lower bearing support 22, and its outer rotor shaft extension 28 is fixedly connected to the load shaft extension 21 through a coupling 27; the lower plate 19 in the middle cover assembly is fixedly connected to the load support 20.

[0081] When the magnetic coupler forms thermal deformation of each component due to heating, the floating cage bar 29 will reciprocate in the groove of the outer yoke iron 32 in the floating cage bar assembly, and drive the left end ring 31 and the right end ring 30 to reciprocate, so as to offset or compensate the thermal deformation influence formed by each component of the magnetic coupler; at the same time, the left end ring 31 and the right end ring 30 will also generate radial deformation to offset the thermal deformation influence of the floating cage bar 29.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: modifying the technical solutions recorded in the foregoing embodiments, or equivalently replacing some or all of the technical features therein, does not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vertical speed regulating device, characterized in that: include: A guide column (1), a bearing pressure plate (2), a one-way thrust ball bearing (3), a large round nut (4), a floating plate (5), an inner tapered sleeve (6), an outer tapered sleeve (12), a tension bolt (13) and a washer (16); The plurality of guide pillars (1) are evenly distributed in the circumferential direction of the floating plate (5); the plurality of tension bolts (13) are evenly distributed in the circumferential direction of the floating plate (5); The bearing pressure plate (2) is a circular structure, the bearing pressure plate (2) has a central blind hole, and the bearing pressure plate (2) is connected to the large round nut (4); The one-way thrust ball bearing (3) is sleeved on the top of the guide column (1); the upper surface of the one-way thrust ball bearing (3) is installed in the central blind hole of the bearing pressure plate (2), and the lower surface is installed in the blind hole on the top surface of the outer tapered sleeve (12); The large round nut (4) has an internal thread structure, which forms a thread pair with the external thread structure of the inner tapered sleeve (6); The floating plate (5) is of a circular structure; the surface of the floating plate (5) is provided with a circular hole matching the outer surface of the inner cone sleeve (6) and a circular through hole through which the tensioning bolt (13) can pass; The inner conical sleeve (6) is fixedly connected to the floating plate (5); the inner conical sleeve (6) is sleeved on the outer circular surface of the outer conical sleeve (12); the central hole of the inner conical sleeve (6) is a conical through hole, and the end of the inner circular surface of the inner conical sleeve (6) has an inner conical structure adapted to the outer conical sleeve (12); The outer tapered sleeve (12) is sleeved on the top of the guide column (1) and is located below the one-way thrust ball bearing (3); the end of the outer cylindrical surface of the outer tapered sleeve (12) is provided with an outer tapered structure adapted to the inner tapered sleeve (6); the top of the outer cylindrical surface of the outer tapered sleeve (12) is provided with a central blind hole structure; The tension bolt (13) is a full-thread structure, and its screw structure passes through the circular through hole of the floating plate (5); The washer (16) is an open structure, and a plurality of washer irons (16) are inserted into the tensioning bolts (13). The washer irons (16) are located below the floating plate (5).

2. The vertical speed regulating device according to claim 1, characterized in that: The guide column (1) is a stepped shaft structure, and the bottom end of the guide column (1) is fixed by a guide column screw (9) and a guide column spring washer (10).

3. The vertical speed regulating device according to claim 1, characterized in that: The inner cone sleeve (6) is fixedly connected to the floating plate (5) via an inner cone sleeve screw (7) and an inner cone sleeve spring washer (8).

4. The vertical speed regulating device according to claim 3, characterized in that: The upper portion of the tension bolt (13) is fixed to the floating plate (5) via a round nut (14) and a round nut stop washer (15).

5. The vertical speed regulating device according to claim 4, characterized in that: A vertical axial power unit (17) is arranged on the floating plate (5); The vertical axial power unit (17) is used to connect multiple power devices.

6. A vertical cage outer rotor magnetic coupler, characterized in that: include: An outer rotor assembly, a middle cover assembly, and a vertical speed regulating device as described in any one of claims 1 to 5; The outer rotor assembly comprises a floating cage bar assembly, an outer sleeve (18) and heat dissipation fins (33); The floating cage bar assembly comprises a floating cage bar (29), an outer yoke (32), a left end ring (31) and a right end ring (30); the outer yoke (32) is made of a magnetic conductive material and is evenly distributed with grooves having the same shape as the floating cage bar (29); the floating cage bar (29) is evenly installed in the grooves corresponding to the outer yoke (32); the floating cage bar (29) is made of a good conductor material, and its left and right ends are respectively fixedly connected to the left end ring (31) and the right end ring (30); the left end ring (31) and the right end ring (30) are made of a good conductor material and are installed together with the floating cage bar assembly in an inner hole formed by the outer sleeve (18); wherein the left end ring (31) and the right end ring (30) maintain a uniform floating distance from the outer sleeve (18) in the radial direction; and the outer cylindrical portion of the outer yoke (32) is pressed into the inner hole formed by the outer sleeve (18) in an interference fit manner; The outer sleeve (18) is a cylindrical structure, and heat dissipation fins (33) with good thermal conductivity are evenly distributed on its outer cylindrical surface, and its inner hole can form an interference fit with the outer yoke iron (32); the outer sleeve (18) can be made of an iron material with good magnetic conductivity or an aluminum alloy material with good thermal conductivity; the heat dissipation fins (33) are made of a material with good thermal conductivity, and their base plate is evenly installed on the outer cylindrical surface of the outer sleeve (18).

7. The vertical cage outer rotor magnetic coupler according to claim 6, characterized in that: The middle cover assembly comprises: an upper plate (11), a lower plate (19) and a plurality of vertical plates (23); The upper plate (11) and the lower plate (19) are both circular structures; the upper plate (11) and the lower plate (19) are both provided with coaxial circular through holes; the upper plate (11) and the lower plate (19) are fixedly connected via a plurality of vertical plates (23); A plurality of vertical plates (23) are evenly distributed between the upper plate (11) and the lower plate (19); The outer side of the middle cover assembly is also covered with a protective net.

8. The vertical cage outer rotor magnetic coupler according to claim 7, characterized in that: The guide post (1) of the speed regulating device is fixedly connected to the upper plate (11) of the middle cover assembly via a guide post screw (9) and a guide post spring washer (10).

9. The vertical cage outer rotor magnetic coupler according to claim 7, characterized in that: An electric motor (25) is mounted on the upper surface of the floating plate (5); the shaft extension of the electric motor (25) is supported by an upper bearing support (26); An inner rotor (24) is mounted on the shaft extension of the motor (25).

10. The vertical cage outer rotor magnetic coupler according to claim 7, characterized in that: The outer rotor is supported by a lower bearing support (22); the outer rotor shaft extension (28) is fixedly connected to the load shaft extension (21) via a coupling (27); and the lower plate (19) in the middle cover assembly is fixedly connected to the load support (20).