CN217398186U

CN217398186U - Drive device and elevator equipment thereof

Info

Publication number: CN217398186U
Application number: CN202123022907.2U
Authority: CN
Inventors: 龚兴龙; 李颜; 汪伯潮
Original assignee: University of Science and Technology of China USTC
Current assignee: University of Science and Technology of China USTC
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-09-09
Anticipated expiration: 2031-12-03

Abstract

The utility model provides a driving device, its characterized in that: a traction machine; the traction machine is arranged on the first support seat; a second support seat; and a plurality of vibration damper, install between first supporting seat and second supporting seat, every vibration damper includes: a magnetic field generating device for generating a magnetic field; the elastic modulus of the magnetorheological elastomer material is changed according to the magnetic field intensity of the magnetic field generated by the magnetic field generating device; and a plurality of magnetizers alternately arranged with the magnetorheological elastomer; the mechanical property of the magnetorheological elastomer is changed by adjusting the intensity of the magnetic field, so that the vibration caused by the traction machine is weakened. According to the traction machine, the mechanical property of the magnetorheological elastomer is changed due to the change of the magnetic field intensity, so that the efficiency of transmitting vibration waves is changed, the traction machine can be effectively prevented from inclining, and the transmission of vibration is effectively reduced by combining the laminated cross structure of the magnetorheological elastomer and the magnetizer.

Description

Drive device and elevator equipment thereof

Technical Field

The embodiment of the utility model relates to an elevator drive arrangement field, specifically relates to a drive arrangement and including this kind of drive arrangement's elevator equipment for driving the elevator.

Background

At present, the comfort level and the safety level of elevator operation are more and more emphasized. An elevator traction machine is a power device of an elevator for transporting and transmitting power to operate the elevator. In order to save space, the traction machine is generally directly mounted on the guide rail. Therefore, when the traction machine generates vibration in the running process, the vibration can be transmitted to the lift car through the traction machine, so that the riding comfort degree is reduced, even the bolt is loosened, and further the safety problem is caused; vibrations can even be transmitted to the surrounding building via the guide rails, thereby causing building noise problems. On the other hand, because the front and back atress of hauler is different, the slope can take place certainly in the use, even can reduce the slope to a certain extent through the height of adjusting front and back support in advance when the installation, but in the in-service use, the change of elevator passenger for the elevator slope can't be avoided completely, thereby leads to wire rope and traction sheave to appear wearing and tearing because of improper contact, makes wire rope have the risk of breaking, and then threatens life safety.

At present, the aim of reducing vibration transmission of an elevator traction machine is usually achieved by manufacturing a vibration damping device by elastic materials such as a rubber pad and the like. Because the mechanical properties of the traditional elastic material and structure are fixed, the performance of the traditional elastic material and structure cannot be actively adjusted after installation, and the vibration reduction effect on the elevator traction machine is limited. In addition, the resonance frequency is determined by mass and rigidity, and when the elevator load changes, the resonance cannot be effectively avoided, so that the safety problem is caused. Further, under the influence of vibration, after long-time work, the bolt of the traction machine is loosened, the fixing strength is reduced, and the operation safety is influenced. In addition, once the traditional passive shock absorber is installed, the mechanical property is fixed and cannot be adjusted, the traction machine is inclined due to the fact that the front and the back of the traction machine are stressed asymmetrically in the operation process of the elevator, and then the steel wire rope and the traction sheave are in improper contact, abrasion occurs, and potential safety hazards are caused.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a drive arrangement and applied equipment thereof.

In one aspect of the present invention, there is provided a driving device, including: a traction machine; the traction machine is arranged on the first support seat; a second support seat; and a plurality of vibration damping devices installed between the first supporting seat and the second supporting seat. Each of the vibration damping devices includes: magnetic field generating means for generating a magnetic field; the elastic modulus of the magnetorheological elastomer material is changed according to the magnetic field intensity of the magnetic field generated by the magnetic field generating device; and a plurality of magnetizers and the magnetorheological elastomers are alternately arranged. The mechanical property of the magnetorheological elastomer is changed by adjusting the intensity of the magnetic field, so that the vibration caused by the traction machine is weakened, and meanwhile, the traction machine is prevented from inclining.

According to the utility model discloses an embodiment, wherein, magnetic field generating device includes: an iron core; the electromagnetic coil is wound on the iron core; and a magnetically conductive housing adapted to mount the electromagnetic coil and the iron core.

According to the utility model discloses an embodiment, wherein, damping device still includes: the first fixed seat is arranged at the lower part of the first supporting seat; the second fixed seat is arranged at the upper part of the second supporting seat; the magnetizer comprises a movable magnetizer connected with the first fixing seat and a fixed magnetizer connected with the second fixing seat, and the movable magnetizer is suitable for transmitting vibration from the tractor and transmitting a magnetic field.

According to an embodiment of the invention, wherein, the magnetic field generating device comprises a first magnetic field generating device and a second magnetic field generating device. The first fixing base includes: the first cylinder body is provided with a movable magnetizer at the lower end, and the first magnetic field generating device is accommodated in the first cylinder body; and a first flange protruding radially outward from an upper end of the first cylinder, the first support seat being mounted on the first flange. And the second fixing seat comprises: the fixed magnetizer is arranged at the upper end of the second cylinder, and the second magnetic field generating device is accommodated in the second cylinder; and a second flange protruding radially outward from a lower end of the second cylinder, the second support seat being mounted on the second flange.

According to the utility model discloses an embodiment, wherein, every vibration damper still includes the blocking device who is made by non-magnetic material, and a plurality of magnetic current becomes elastomer and the dull and stereotyped magnetizer that sets up between two adjacent magnetic current becomes elastomer sets up horizontally in the space by the restriction of blocking device to prevent magnetic current becomes elastomer and magnetizer horizontal migration.

According to the utility model discloses an embodiment is equipped with the recess in the lower part of portable magnetizer, and blocking device's upper end inserts in the recess and there is the clearance with the bottom of recess, and blocking device's lower extreme is installed on fixed magnetizer.

According to an embodiment of the present invention, wherein the plurality of magnetorheological elastomers and the plurality of magnetizers are vertically disposed between the first fixing base and the second fixing base; each movable magnetizer is arranged to be capable of moving between two adjacent magnetorheological elastomers, and the lower end of each fixed magnetizer is installed on the second fixed seat; the magnetic field generating device comprises a first magnetic field generating device and a second magnetic field generating device which are respectively arranged outside the two fixed magnetizers positioned at the outermost side.

According to an embodiment of the invention, wherein the fixed magnetizer is formed as a cylinder and serves as a housing of the magnetic field generating device; the magnetorheological elastomers comprise at least two annular magnetorheological elastomers which are separately arranged in the fixed magnetic conductor; the movable magnetizer is movably arranged in the annular magnetorheological elastomer and is used as an iron core; at least one electromagnetic coil is arranged in a space enclosed by the fixed magnetizer, the annular magnetorheological elastomer and the movable magnetizer.

In another aspect of the present invention, there is provided an elevator apparatus using the driving device, including: a car; dragging the cable; and the traction cable pulls the cage to ascend and descend under the driving of the traction machine of the driving device.

According to the embodiment of the utility model, the magnetic field intensity of the magnetic field is changed by adjusting the current in the electromagnetic coil according to the weight of the cage and the change of the stress of the first supporting seat and/or the second supporting seat;

according to the utility model discloses an embodiment, drive arrangement installs on the car, or install in the elevator shaft, or install and be used for on the guide rail of car.

According to the utility model discloses an above-mentioned embodiment's drive arrangement and elevator equipment thereof, according to the weight of car and the change of the atress of first supporting seat and/or second supporting seat, change the magnetic field intensity in magnetic field through the electric current in the adjustment solenoid, and then change the mechanical properties of magnetic current becomes elastomer and the efficiency of magnetic current becomes elastomer transmission vibration wave, can effectively prevent the hauler slope simultaneously, combine the stromatolite cross structure of magnetic current becomes elastomer and magnetizer, effectively reduce the transmission of vibration.

Drawings

Fig. 1 is a schematic front view of a drive device according to an embodiment of the present invention;

fig. 2 is a schematic side view of a drive device according to an embodiment of the present invention;

fig. 3 is a sectional view of a vibration damping device according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of a vibration damping device according to another embodiment of the present invention; and

fig. 5 is a sectional view of a vibration damping device according to another embodiment of the present invention.

Description of the reference numerals

1 traction machine

2 first supporting seat

3 damping device

4 second support seat

5 traction cable

6 magnetic field generating device

61 first magnetic field generating device

62 second magnetic field generating device

611 iron core

612 electromagnetic coil

613 magnetic conduction shell

7 magnetorheological elastomer

8 magnetizer

81 movable magnetizer

82 fixed magnetizer

83 flat magnetic conductor

9 first fixing seat

91 first cylinder

92 first flange

10 second fixing seat

101 second cylinder

102 second flange

11 blocking device

12 magnetic line direction of magnetic field generated by electromagnetic coil

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.

The vibration damping device made of elastic materials such as common rubber pads and the like has fixed mechanical properties of materials and structures, so that the mechanical properties of the vibration damping device cannot be actively adjusted after installation, the vibration damping effect on the elevator traction machine is limited, long-term vibration influences are caused, bolts of the traction machine are loosened, the fixing strength is reduced, and the operation safety is influenced. Meanwhile, once the traditional passive vibration damper is installed, the mechanical property of the material of the traditional passive vibration damper is fixed and cannot be adjusted, and the traction machine is inclined due to asymmetrical front and back stress of the traction machine in the running process of the elevator, so that the steel wire rope and the traction sheave are in improper contact, wear occurs, and potential safety hazards are caused.

To this end, according to the general inventive concept of one aspect of the present disclosure, there is provided a driving apparatus including: a traction machine; the traction machine is arranged on the first support seat; a second support seat; and a plurality of vibration damping devices installed between the first supporting seat and the second supporting seat. Each vibration damping device includes: the magnetorheological elastomer material has an elastic modulus which changes according to the magnetic field intensity of the magnetic field generated by the magnetic field generating device; and a plurality of magnetizers alternately arranged with the magnetorheological elastomer. The mechanical property of the magnetorheological elastomer is changed by adjusting the intensity of the magnetic field, so that the efficiency of transmitting vibration waves is changed to weaken the vibration caused by the traction machine, the traction machine can be effectively prevented from inclining, and the transmission of the vibration is effectively reduced by combining the laminated cross structure of the magnetorheological elastomer and the magnetizer.

According to another aspect of the present invention, there is provided an elevator apparatus using the driving device, including: a car; dragging the cable; and the traction cable pulls the cage to ascend and descend under the driving of the traction machine of the driving device.

In the driving device and the elevator equipment thereof, the magnetic field generating device is utilized to generate a magnetic field, the elastic modulus of the magnetorheological elastomer material is changed by adjusting the intensity of the magnetic field, each vibration damping device is actively and independently adjusted, the transmission of vibration and the generation of resonance are reduced, the vibration caused by the tractor is weakened, the stability of the tractor is maintained, and the inclination of the tractor is prevented.

The technical solution of the present invention will be described in detail below with reference to specific examples. It should be noted that the following specific examples are only for illustration and are not intended to limit the present invention.

Fig. 1 is a schematic front view of a drive device according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of a driving device according to an embodiment of the present invention.

As shown in fig. 1 and 2, the driving device of the present invention includes: a traction machine 1; the traction machine is characterized by comprising a first supporting seat 2, wherein the traction machine 1 is arranged on the first supporting seat 2; a second support seat 4; and a plurality of vibration dampers 3 installed between the first support seat 2 and the second support seat 4. Each of the vibration damping devices 3 includes: a magnetic field generating device 6 for generating a magnetic field; the elastic modulus of the material of the magnetorheological elastomers 7 is changed according to the magnetic field intensity of the magnetic field generated by the magnetic field generating device; and a plurality of magnetizers 8 alternately arranged with the magnetorheological elastomer 7. By adjusting the intensity of the magnetic field, the mechanical property of the magnetorheological elastomer 7 is changed to weaken the vibration caused by the traction machine 1.

Fig. 3 is a sectional view of a vibration damping device according to an embodiment of the present invention.

According to an embodiment of the present invention, referring to fig. 3, the magnetic field generating device 6 includes: an iron core 611; an electromagnetic coil 612, the electromagnetic coil 612 being wound around the iron core 611; and a magnetically conductive housing 613 adapted to mount the electromagnetic coil 612 and the iron core 611.

According to the utility model discloses an embodiment, magnetic conduction shell 613 sets up in the outside of solenoid 612 and iron core 611, and fixes the stromatolite structure outside for control magnetic field direction realizes gathering the magnetism effect.

As shown in fig. 3, the vibration damping device 3 further includes: the first fixed seat 9 is arranged at the lower part of the first supporting seat 2; and a second fixing seat 10 installed at an upper portion of the second support seat 4. The magnetizer 8 includes a movable magnetizer 81 connected to the first fixing base 9 and a fixed magnetizer 82 connected to the second fixing base 4, and the movable magnetizer 81 is adapted to transmit vibration from the traction machine 1 and transmit a magnetic field.

According to an embodiment of the present invention, the magnetic field generating device 6 comprises a first magnetic field generating device 61 and a second magnetic field generating device 62. The first fixing base 9 includes: a first cylinder 91, a movable magnetizer 81 installed at a lower end of the first cylinder 91, and a first magnetic field generating device 61 accommodated in the first cylinder 91; and a first flange 92 protruding radially outward from an upper end of the first cylinder 91, the first support holder 2 being mounted on the first flange 92. The second fixing base 10 includes: the second cylinder 101, the fixed magnetizer 82 is installed at the upper end of the second cylinder 101, and the second magnetic field generating device 62 is accommodated in the second cylinder 101; and a second flange 102 protruding radially outward from the lower end of the second cylinder 101, the second support seat 4 being mounted on the second flange 102.

According to the embodiment of the present invention, each vibration damping device 3 further includes a blocking device 11 made of a non-magnetic conductive material, and the plurality of magnetorheological elastomers 7 and the magnetizer 8 disposed between the adjacent two magnetorheological elastomers 7 are horizontally disposed in the space defined by the blocking device 11 to prevent the magnetorheological elastomers 7 and the magnetizer 8 from moving horizontally. The magnetorheological elastomer 7 and the magnetizer 8 are alternately arranged in a laminated manner in the vertical direction, the magnetorheological elastomer and the magnetizer are extruded to a certain degree under the influence of the lift car and the counterweight after being installed, and the blocking device 11 made of a non-magnetic material can prevent magnetization between the two polar plates.

According to the utility model discloses an embodiment is equipped with the recess in the lower part of portable magnetizer 81, and insert the upper end of blocking device 11 there is the clearance in the recess and with the bottom of recess, and the lower extreme of blocking device 11 is installed on fixed magnetizer 82. During the pressing process, the laminated movable magnetizer 81 moves downward, the groove can prevent the movable magnetizer 81 from colliding with the blocking device 11, and the whole working stroke of the blocking device 11 occurs in the groove.

According to the utility model discloses an embodiment, damping device 3 passes through the bolt fastening between first supporting seat 2 and second supporting seat 4, and the screw on first supporting seat 2 and the second supporting seat 4 adopts the counter bore design to the fixed orifices on damping device 3 fixed knot of structure first fixing base 9 and the second fixing base 10 adopts the counter bore equally.

According to the utility model discloses an embodiment, magnetic current becomes elastomer 7 and magnetizer 8 and forms laminated structure, and the damping that the vibration wave can be obvious is propagated between different media, effectively reduces the transmission of vibration.

According to the embodiment of the present invention, the laminated structure formed by the magnetorheological elastomer 7 and the magnetizer 8 adopts an open design structure, and when the magnetorheological elastomer 7 and the magnetizer 8 are installed, they are in an extruding state,

according to the embodiment of the present invention, there is a gap between the first fixing seat 9 and the second fixing seat 10 and the magnetic conduction shell 613, and the magnetic conduction shell 613 does not protrude out of the first fixing seat 9 and the second fixing seat 10.

According to an exemplary embodiment of the present invention, the horizontal cross section of the first fixing seat 9, the second fixing seat 10, the magnetorheological elastomer 7 and the magnetizer 8 may be rectangular or circular.

Fig. 4 is a sectional view of a vibration damping device according to another embodiment of the present invention.

As shown in fig. 4, in another damping device of the present invention, a plurality of magnetorheological elastomers 7 and a plurality of magnetizers 8 are vertically disposed between a first fixing seat 9 and a second fixing seat 10; each movable magnetic conductor 81 is provided to be movable between two adjacent magnetorheological elastomers 7, and the lower end of each fixed magnetic conductor 82 is mounted on the second fixed base 10. The magnetic-field generating device 6 includes a first magnetic-field generating device 61 and a second magnetic-field generating device 62 that are respectively installed outside the two fixed magnetizers 82 located at the outermost sides.

According to the utility model discloses an embodiment, the stromatolite structure that magnetic current becomes elastomer 7 and magnetizer 8 formation is horizontal, makes stromatolite direction level, and magnetizer 8 increases the working plane reinforcing damping effect of shearing with 7 multilayer stacks of magnetic current becomes elastomer.

According to the utility model discloses an embodiment, the stromatolite structure that magnetorheological elastomer 7 and magnetizer 8 formed is horizontal, and the working direction changes into the direction perpendicular with the stromatolite direction, and the 11 quantity reductions of the stop device that restriction magnetorheological elastomer 7 and magnetizer 8 slided are 2 only to be used for restricting the fore-and-aft direction motion of magnetorheological elastomer 7 and partial magnetizer 8 in the view. The blocking device 11 is fixed on the magnetizer 8 connected with the second fixing seat 10, and the magnetizer 8 does not move in the lamination direction (horizontal direction), so that a concave groove is not required to be designed on the magnetizer 8.

According to the utility model discloses an embodiment lacks car and counter weight and presss from both sides tightly through interference fit between magnetic current becomes elastomer 7 and the magnetizer 8 to the extrusion of lamination.

According to an exemplary embodiment of the present invention, the horizontal cross section of the first fixing seat 9 and the second fixing seat 10 may be rectangular.

Referring to fig. 4, in order to allow the first fixing base 9 to move in the vertical direction with respect to the second fixing base 10, a gap exists between the lower portion of the first fixing base 9 and the upper end of the fixed magnetic conductor 82, and a gap electrically exists between the lower end of the movable magnetic conductor 81 and the second fixing base 10.

As shown in fig. 5, in another vibration damping device of the present invention, the fixed magnetizer 82 is formed as a cylinder and used as a housing of the magnetic field generating device 6; the magnetorheological elastomer 7 comprises at least two annular magnetorheological elastomers 7, and the at least two annular magnetorheological elastomers 7 are separately arranged in the fixed magnetizer 82; the movable magnetizer 81 is movably disposed inside the annular magnetorheological elastomer 7 and serves as an iron core. At least one electromagnetic coil 612 is disposed in a space enclosed by the fixed magnetizer 82, the annular magnetorheological elastomer 7 and the movable magnetizer 81.

According to an embodiment of the present invention, the outer diameter of the annular magnetorheological elastomer 7 is larger than the outer diameter of the electromagnetic coil 612.

According to the embodiment of the present invention, the annular magnetorheological elastic body 7 is disposed between the fixed magnetizer 82 in the barrel shape and the movable magnetizer 81 serving as the iron core 611 by interference fit.

Referring to fig. 5, in order to allow the first fixing holder 9 to move in the vertical direction with respect to the second fixing holder 10, a gap exists between the lower portion of the first fixing holder 9 and the upper end of the fixed magnetizer 82, and a gap also exists between the lower end of the movable magnetizer 81 and the second fixing holder 10.

According to the embodiment of the present invention, the magnetorheological elastomer 7 is formed by an extrusion vulcanization process under a magnetic field environment using a material including an elastic matrix and magnetic nanoparticles.

According to an embodiment of the invention, the elastic matrix comprises natural rubber or silicone rubber; the magnetic nanoparticles comprise carbonyl iron particles or Fe ₃ O ₄ And (3) granules.

According to the utility model discloses an embodiment, damping device 3 is open structure, the staff's inspection of being convenient for to in time maintain, change damping device.

In another aspect of the present invention, there is provided an elevator apparatus using the driving device, including: a car; a traction cable 5; and the traction cable 5 pulls the car to ascend and descend under the driving of the traction machine 1 of the driving device.

According to the embodiment of the present invention, wherein the magnetic field intensity of the magnetic field is changed by adjusting the current in the electromagnetic coil 612 according to the weight of the car and the change of the stress of the first support seat 2 and/or the second support seat 4.

According to the utility model discloses a drive arrangement's mechanism of operation does: in the running process of the elevator, the weight in the elevator car and the stress change of each vibration damper are detected in real time through the matched sensing equipment and the control system, the magnetic field intensity of a required magnetic field is obtained by adjusting the current in each electromagnetic coil 612, and the mechanical property of the magnetorheological elastomer 7 is adjusted, so that the stress condition of the vibration damper changing in the running process of the elevator is met, and the mechanical property of the magnetorheological elastomer is actively controlled to reduce the vibration transmission. Specifically, the change of the mechanical property of the magnetorheological elastomer 7 changes the working condition of the elevator, changes the load condition of the elevator caused by resonance in the running process, and can effectively prevent the resonance. Meanwhile, through independent adjustment of each vibration damper 3, the tractor 1 can be kept stable and does not incline when each vibration damper 3 is under different stress.

According to the utility model discloses a drive arrangement and elevator that utilizes this drive arrangement of above-mentioned embodiment have utilized magnetic field generating device to produce magnetic field, and through adjustment magnetic field intensity size, make magnetorheological elastomer material's modulus of elasticity change, each damping device is just independently adjusted in the initiative, reduces the transmission of vibration, resonant production, weakens the vibration that is caused by the hauler, maintains the hauler stable, prevents its slope. It should also be noted that directional terms, such as "upper", "lower", "front", "rear", "left", "right", etc., used in the embodiments are only directions referring to the drawings, and are not intended to limit the protection scope of the present invention. Throughout the drawings, like elements are represented by like or similar reference numerals. Conventional structures or constructions will be omitted when they may obscure the understanding of the present invention.

And the shapes and sizes of the respective components in the drawings do not reflect actual sizes and proportions, but merely illustrate the contents of the embodiments of the present invention. Furthermore, the word "comprising" does not exclude the presence of elements or steps other than those listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. However, the method of the invention should not be construed to reflect the intent: rather, the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing inventive embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A drive device, comprising:

a traction machine (1);

the traction machine is characterized by comprising a first supporting seat (2), wherein the traction machine (1) is installed on the first supporting seat (2);

a second support seat (4); and

a plurality of vibration damping devices (3) mounted between said first support (2) and said second support (4), each of said vibration damping devices (3) comprising:

magnetic field generating means (6) for generating a magnetic field;

a plurality of magnetorheological elastomers (7), wherein the elastic modulus of the materials of the magnetorheological elastomers (7) is changed according to the magnetic field intensity of the magnetic field generated by the magnetic field generating device (6); and

a plurality of magnetizers (8) alternately arranged with the magnetorheological elastomer (7);

the mechanical property of the magnetorheological elastomer (7) is changed by adjusting the intensity of the magnetic field, so that the vibration caused by the tractor (1) is weakened, and the tractor (1) is prevented from inclining.

2. The driving device according to claim 1, wherein the magnetic field generating device comprises:

an iron core (611);

an electromagnetic coil (612), the electromagnetic coil (612) being wound around the iron core (611); and

a magnetically conductive housing (613) adapted to mount the electromagnetic coil (612) and the iron core (611).

3. The drive device according to claim 2, wherein the vibration damping device further comprises:

the first fixed seat (9) is arranged at the lower part of the first supporting seat (2); and

the second fixed seat (10) is arranged at the upper part of the second supporting seat (4);

the magnetizer (8) comprises a movable magnetizer (81) connected with the first fixing seat (9) and a fixed magnetizer (82) connected with the second fixing seat (10), and the movable magnetizer (81) is suitable for transmitting vibration from the traction machine (1) and transmitting the magnetic field.

4. The drive device according to claim 3,

the magnetic field generating device (6) comprises a first magnetic field generating device (61) and a second magnetic field generating device (62);

the first holder (9) comprises:

a first cylinder (91), the movable magnetizer (81) being installed at a lower end of the first cylinder (91), the first magnetic field generating device (61) being accommodated in the first cylinder (91); and

a first flange (92) projecting radially outwards from an upper end of the first cylinder (91), the first support seat (2) being mounted on the first flange (92); and

the second holder (10) comprises:

a second cylinder (101), wherein the fixed magnetizer (82) is installed at the upper end of the second cylinder (101), and the second magnetic field generating device is accommodated in the second cylinder (101); and

a second flange (102) protruding radially outward from a lower end of the second cylinder (101), the second support seat (4) being mounted on the second flange (102).

5. The drive device according to claim 4, characterized in that each of said damping devices (3) further comprises a blocking device (11) made of a non-magnetic conductive material, a plurality of said magnetorheological elastomers (7) and a flat plate magnetizer (83) disposed between two adjacent magnetorheological elastomers (7) are horizontally disposed in a space defined by said blocking device (11) to prevent said magnetorheological elastomers (7) and magnetizers (8) from horizontally moving;

the lower part of the movable magnetizer (81) is provided with a groove, the upper end of the blocking device (11) is inserted into the groove, a gap exists between the upper end of the blocking device and the bottom of the groove, and the lower end of the blocking device (11) is installed on the fixed magnetizer (82).

6. The drive device according to claim 3, characterized in that a plurality of said magnetorheological elastomers (7) and a plurality of said magnetizers (8) are vertically arranged between said first and second holders (9, 10);

each movable magnetizer (81) is arranged to be capable of moving between two adjacent magnetorheological elastomers (7), and the lower end of each fixed magnetizer (82) is installed on the second fixed seat (10);

the magnetic field generating device (6) comprises a first magnetic field generating device (61) and a second magnetic field generating device (62) which are respectively arranged outside two fixed magnetizers (82) positioned at the outermost side.

7. The drive device according to claim 3, characterized in that said fixed magnetizer (82) is formed as a cylinder and serves as a housing of said magnetic-field generating device (6);

the magnetorheological elastomer (7) comprises at least two annular magnetorheological elastomers (7), and the at least two annular magnetorheological elastomers (7) are separately arranged in the fixed magnetizer (82);

the movable magnetizer (81) is movably arranged in the annular magnetorheological elastomer (7) and is used as the iron core;

at least one electromagnetic coil (612) is arranged in a space enclosed by the fixed magnetizer (82), the annular magnetorheological elastomer (7) and the movable magnetizer (81).

8. An elevator apparatus, comprising:

a car;

a traction cable (5); and

the drive arrangement according to any of claims 2-7, the hoisting ropes (5) pulling the car up and down driven by the hoisting machine (1) of the drive arrangement.

9. Elevator arrangement according to claim 8, characterized in that the strength of the magnetic field is changed by adjusting the current in the electromagnetic coil (612) depending on the weight of the car and the change in the force of the first support (2) and/or second support (4);

the drive is mounted on the car, or in the elevator shaft, or on a guide rail for the car.