CN114057072A - Drive device and elevator equipment thereof - Google Patents

Drive device and elevator equipment thereof Download PDF

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Publication number
CN114057072A
CN114057072A CN202111474340.4A CN202111474340A CN114057072A CN 114057072 A CN114057072 A CN 114057072A CN 202111474340 A CN202111474340 A CN 202111474340A CN 114057072 A CN114057072 A CN 114057072A
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CN
China
Prior art keywords
magnetic field
magnetizer
field generating
magnetorheological
fixed
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CN202111474340.4A
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Chinese (zh)
Inventor
龚兴龙
李颜
汪伯潮
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University of Science and Technology of China USTC
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University of Science and Technology of China USTC
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Priority to CN202111474340.4A priority Critical patent/CN114057072A/en
Publication of CN114057072A publication Critical patent/CN114057072A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0035—Arrangement of driving gear, e.g. location or support
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

The present disclosure provides 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 damper, install between first supporting seat and second supporting seat, every vibration damper 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 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
Embodiments of the present disclosure relate to the field of elevator drives, and in particular, to a drive for driving an elevator and an elevator installation including such a drive.
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 tractor generates vibration in the running process, the vibration can be transmitted to the lift car through the tractor, so that the riding comfort degree is reduced, even the bolt is loosened, and 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 together, and when the elevator load changes, the generation of resonance can not 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 running process of the elevator, and further the steel wire rope and the traction wheel are in improper contact, abrasion occurs, and potential safety hazards are caused.
Disclosure of Invention
In view of the above, the present disclosure provides a driving device and an application apparatus thereof to solve at least one of the above and other technical problems.
In order to achieve the above object, in 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 damper, install between first supporting seat and second supporting seat, every vibration damper 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 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, and meanwhile, the traction machine is prevented from inclining.
According to an embodiment of the present disclosure, wherein, the 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 an embodiment of the present disclosure, wherein the vibration damping device further comprises: 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 present disclosure, wherein the magnetic field generating device comprises a first magnetic field generating device and a second magnetic field generating device; the first fixing seat comprises: the first cylinder is provided with a movable magnetizer at the lower end, and the first magnetic field generating device is accommodated in the first cylinder; 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 an embodiment of the present disclosure, each of the vibration damping devices further includes a blocking device made of a non-magnetic conductive material, and the plurality of magnetorheological elastomers and the flat plate magnetizer disposed between two adjacent magnetorheological elastomers are horizontally disposed in a space defined by the blocking device to prevent the magnetorheological elastomers and the magnetizer from horizontally moving.
Preferably, a groove is formed in the lower portion of the movable magnetizer, the upper end of the blocking device is inserted into the groove and has a gap with the bottom of the groove, and the lower end of the blocking device is installed on the fixed magnetizer.
According to an embodiment of the present disclosure, 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 present disclosure, wherein the fixed magnetizer is formed as a cylinder and serves as a housing of the magnetic field generating device; the magnetorheological elastomer comprises 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.
According to an embodiment of the present disclosure, wherein the magnetorheological elastomer is vulcanized and molded from a material comprising an elastomeric matrix and magnetic particles;
preferably, the elastomeric matrix comprises natural rubber or silicone rubber; the magnetic nanoparticles comprise carbonyl iron particles or Fe3O4And (3) granules.
In another aspect of the present disclosure, there is provided an elevator apparatus using the driving device, including: a car; dragging the cable; and the traction cable pulls the car to ascend and descend under the driving of the traction machine of the driving device.
According to the embodiment of the disclosure, the magnetic field intensity of the magnetic field is changed by adjusting the current in the electromagnetic coil according to the weight of the carriage and the change of the stress of the first supporting seat and/or the second supporting seat;
preferably the drive means is mounted on the car, or in the elevator shaft, or on guide rails for the car.
According to the driving device and the elevator equipment thereof disclosed by the embodiment of the disclosure, according to the weight of the carriage and the stress change of the first supporting seat and/or the second supporting seat, the magnetic field intensity of the magnetic field is changed by adjusting the current in the electromagnetic coil, so that the efficiency of the magnetorheological elastomer for transmitting vibration waves and the mechanical property of the magnetorheological elastomer are changed, meanwhile, the tractor 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.
Drawings
FIG. 1 is a schematic front view of a drive arrangement of an embodiment of the present disclosure;
FIG. 2 is a side schematic view of a drive arrangement of an embodiment of the present disclosure;
FIG. 3 is a cross-sectional view of a vibration damping device of an embodiment of the present disclosure;
FIG. 4 is a cross-sectional view of a vibration damping device according to another embodiment of the present disclosure; and
fig. 5 is a cross-sectional view of a vibration damping device according to another embodiment of the present disclosure.
Description of the reference numerals
1 traction machine
2 first supporting seat
3 vibration 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
For the purpose of promoting a better understanding of the objects, aspects and advantages of the present disclosure, reference is made to the following detailed description taken in conjunction with 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 support seat and the second support 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 the general inventive concept of another aspect of the present disclosure, there is provided an elevator apparatus using the driving device, including: a car; dragging the cable; and the traction cable pulls the car 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 disclosure 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 disclosure.
FIG. 1 is a schematic front view of a drive arrangement of an embodiment of the present disclosure; fig. 2 is a schematic structural diagram of a driving device according to an embodiment of the present disclosure.
As shown in fig. 1 and 2, the driving apparatus of the present disclosure 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 cross-sectional view of a vibration damping device of an embodiment of the present disclosure.
According to an embodiment of the present disclosure, 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 embodiment of the present disclosure, the magnetic conductive housing 613 is disposed outside the electromagnetic coil 612 and the iron core 611, and is fixed outside the laminated structure for controlling the magnetic field direction to achieve the magnetic concentration 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 disclosure, 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 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 seat 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 disclosure, each vibration damping device 3 further includes a blocking device 11 made of a non-magnetic conductive material, a plurality of magnetorheological elastomers 7, and a magnetic conductor 8 disposed between two adjacent magnetorheological elastomers 7 are horizontally disposed in a space defined by the blocking device 11 to prevent the magnetorheological elastomers 7 and the magnetic conductor 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 embodiment of the present disclosure, a groove is provided at the lower portion of the movable magnetizer 81, the upper end of the blocking device 11 is inserted into the groove and has a gap with the bottom of the groove, and the lower end of the blocking device 11 is installed on the 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 embodiment of the disclosure, the vibration damping device 3 is fixed between the first supporting seat 2 and the second supporting seat 4 through bolts, screw holes on the first supporting seat 2 and the second supporting seat 4 are designed to be counter bored, and fixing holes on the first fixing seat 9 and the second fixing seat 10 of the fixing structure of the vibration damping device 3 are also designed to be counter bored.
According to the embodiment of the disclosure, the magnetorheological elastomer 7 and the magnetizer 8 form a laminated structure, so that the propagation of vibration waves among different media can be obviously attenuated, and the transmission of vibration is effectively reduced.
According to the embodiment of the present disclosure, 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, the magnetorheological elastomer 7 and the magnetizer are in an extrusion state,
according to the embodiment of the present disclosure, a gap exists between the first fixing seat 9 and the second fixing seat 10 and the magnetically conductive shell 613, and the magnetically conductive 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 disclosure, 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 cross-sectional view of a vibration damping device according to another embodiment of the present disclosure.
As shown in fig. 4, in another damping device of the present disclosure, a plurality of magnetorheological elastomers 7 and a plurality of magnetizers 8 are vertically disposed between a first fixing base 9 and a second fixing base 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 means 6 includes a first magnetic field generating means 61 and a second magnetic field generating means 62 installed outside the two fixed magnetizers 82 located at the outermost sides, respectively.
According to the embodiment of the disclosure, the laminated structure formed by the magnetorheological elastomer 7 and the magnetizer 8 is transverse, so that the laminating direction is horizontal, and the magnetizer 8 and the magnetorheological elastomer 7 are laminated in multiple layers to increase the shearing working plane and enhance the vibration reduction effect.
According to the embodiment of the disclosure, the laminated structure formed by the magnetorheological elastomer 7 and the magnetizer 8 is transverse, the working direction is changed into the direction perpendicular to the laminated direction, and the number of the blocking devices 11 for limiting the sliding of the magnetorheological elastomer 7 and the magnetizer 8 is reduced to 2, and the blocking devices are only used for limiting the front and back movement of the magnetorheological elastomer 7 and part of the 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 embodiment of the disclosure, the magnetorheological elastomer 7 and the magnetizer 8 are clamped by interference fit without extrusion of the car and the counterweight to the laminated structure.
According to an exemplary embodiment of the present disclosure, the horizontal cross-section of the first and second holders 9, 10 may be rectangular.
Referring to fig. 4, 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.
Fig. 5 is a cross-sectional view of a vibration damping device according to another embodiment of the present disclosure.
As shown in fig. 5, in another vibration damping device of the present disclosure, the fixed magnetizer 82 is formed as a cylinder and serves 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 arranged in the annular magnetorheological elastomer 7 and is used 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 disclosure, 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 disclosure, the annular magnetorheological elastic 7 body is disposed between the fixed magnetizer 82 having 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 disclosure, the magnetorheological elastomer 7 is formed by adopting an extrusion vulcanization process under a magnetic field environment by using a material comprising an elastic matrix and magnetic nanoparticles.
According to an embodiment of the present disclosure, the elastic matrix includes natural rubber or silicone rubber; the magnetic nanoparticles comprise carbonyl iron particles or Fe3O4And (3) granules.
According to the embodiment of the disclosure, the vibration damping device 3 is an open structure, which is convenient for workers to check, so as to maintain and replace the vibration damping device in time.
In another aspect of the present disclosure, 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 disclosure, the magnetic field strength of the magnetic field is changed by adjusting the current in the electromagnetic coil 612 according to the weight of the car body and the change of the stress of the first supporting seat 2 and/or the second supporting seat 4.
According to an embodiment of the disclosure, the drive means is mounted on the car, or in the elevator shaft, or on guide rails for the car.
The working mechanism of the driving device according to the embodiment of the present disclosure is: 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 the independent adjustment of each vibration damper 3, the traction machine 1 can be kept stable and does not incline when each vibration damper 3 is under different stress.
According to the drive device and the elevator using the drive device of the above embodiments of the present disclosure, the magnetic field generating device is used to generate the 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 traction machine is weakened, the stability of the traction machine is maintained, and the inclination of the traction machine is prevented. It should also be noted that directional terms, such as "upper", "lower", "front", "rear", "left", "right", and the like, used in the embodiments are only directions referring to the drawings, and are not intended to limit the scope of the present disclosure. 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 disclosure.
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 disclosure. Furthermore, the word "comprising" does not exclude the presence of elements or steps not 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 disclosure, various features of the disclosure are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure 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: that is, the claimed disclosure 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 disclosure.
The above-mentioned embodiments are intended to illustrate the objects, aspects and advantages of the present disclosure in further detail, and it should be understood that the above-mentioned embodiments are only illustrative of the present disclosure and are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.

Claims (10)

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 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).
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 apparatus 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, wherein each of the vibration damping devices (3) further comprises a blocking device (11) made of a non-magnetic conductive material, a plurality of the magnetorheological elastomers (7) and a flat magnetic conductor (83) arranged between two adjacent magnetorheological elastomers (7) are horizontally arranged in a space defined by the blocking device (11) to prevent the magnetorheological elastomers (7) and the magnetic conductor (83) from horizontally moving;
preferably, a groove is formed in the lower portion of the movable magnetizer (81), the upper end of the blocking device (11) is inserted into the groove, a gap is formed 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, wherein a plurality of said magnetorheological elastomers (7) and a plurality of said magnetizers 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. A drive arrangement according to claim 3, wherein the fixed magnetizer (82) is formed as a cylinder and serves as a housing for the magnetic field generating means (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 is arranged (6) in a space enclosed by the fixed magnetizer (82), the annular magnetorheological elastomer (7) and the movable magnetizer (81).
8. The drive device according to any one of claims 1-7, wherein the magnetorheological elastomer (7) is vulcanised from a material comprising an elastomeric matrix and magnetic particles;
preferably, the elastomeric matrix comprises natural rubber or silicone rubber; the magnetic nanoparticles comprise carbonyl iron particles or Fe3O4And (3) granules.
9. An elevator, comprising:
a car;
a traction cable (5); and
the drive arrangement (3) according to any of claims 1-8, the hoisting cables (5) pulling the car up and down driven by the hoisting machine (1) of the drive arrangement (3).
10. Elevator according to claim 9, wherein the magnetic field strength of the magnetic field is varied by adjusting the current in the electromagnetic coil (612) according to the weight of the car and the variation of the force applied to the first (2) and/or second (4) support;
preferably, the drive means (3) is mounted on the car, or in the elevator shaft, or on guide rails for the car.
CN202111474340.4A 2021-12-03 2021-12-03 Drive device and elevator equipment thereof Pending CN114057072A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111474340.4A CN114057072A (en) 2021-12-03 2021-12-03 Drive device and elevator equipment thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111474340.4A CN114057072A (en) 2021-12-03 2021-12-03 Drive device and elevator equipment thereof

Publications (1)

Publication Number Publication Date
CN114057072A true CN114057072A (en) 2022-02-18

Family

ID=80228569

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111474340.4A Pending CN114057072A (en) 2021-12-03 2021-12-03 Drive device and elevator equipment thereof

Country Status (1)

Country Link
CN (1) CN114057072A (en)

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