CN212004065U - Adjustable electromagnetic damping device for elevator - Google Patents
Adjustable electromagnetic damping device for elevator Download PDFInfo
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- CN212004065U CN212004065U CN202020235543.2U CN202020235543U CN212004065U CN 212004065 U CN212004065 U CN 212004065U CN 202020235543 U CN202020235543 U CN 202020235543U CN 212004065 U CN212004065 U CN 212004065U
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- electromagnet
- damping device
- elevator
- adjustable electromagnetic
- tubular structure
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Abstract
The utility model relates to an elevator is with adjustable electromagnetism damping device, including two support pieces and the shock pad of superpose between two support pieces, first support piece in two support pieces is as tubular structure, and first electro-magnet is installed to the one end in the tubular structure, and second support piece in two support pieces is equipped with and passes the inside extension of tubular structure installs the second electro-magnet that acts on with first electro-magnet on this extension. Through changing the magnetic field intensity between first magnet and the second electro-magnet to change the repulsion force that two electro-magnets are close to one end, thereby change damping device's damping and in order to adapt to different vibration source frequencies, restrain the vibration, promote passenger's travelling comfort in the sedan-chair.
Description
Technical Field
The utility model relates to an elevator technical field especially relates to an elevator is with adjustable electromagnetism damping device.
Background
The conventional shock absorption such as spring shock absorption, rubber shock absorption, spring rubber combination shock absorption that is used for the elevator among the prior art relies on the shock absorption performance and the mechanical structure of material itself in order to alleviate the vibration situation of equipment, and this kind of passive effect of moving away to avoid possible earthquakes is limited, and can be along with the lapse of live time, thereby the shock pad will distort and lead to the change of rigidity, causes the elevator to take the comfort increasingly poor, when the elevator stops, will obviously feel elevator vibrations.
SUMMERY OF THE UTILITY MODEL
Therefore, the adjustable electromagnetic damping device for the elevator is needed to solve the problem that the rigidity of the damping pad changes in the using process in the prior art.
An adjustable electromagnetic damping device for an elevator comprises two supporting pieces and a damping pad overlapped between the two supporting pieces, wherein a first supporting piece of the two supporting pieces is used as a cylindrical structure, and a first electromagnet is installed at one end in the cylindrical structure;
and an extension part penetrating through the inside of the cylindrical structure is arranged on the second support part of the two support parts, and a second electromagnet which is acted with the first electromagnet is arranged on the extension part.
Preferably, the cylindrical structure has a top and a bottom opposite to each other in the axial direction, wherein the bottom is a closed structure and the outer edge is provided with a flange structure, the top is an open structure, and the extension extends into the cylindrical structure through the top.
Preferably, the top of the tubular structure has an outwardly turned platform portion on which the cushion is superposed.
Preferably, an anti-rotation limiting rod is connected between the bearing part and the second support part, and the anti-rotation limiting rod is eccentrically arranged relative to the cylindrical structure.
Preferably, the middle part of the shock pad is provided with an avoiding area, and the extending part penetrates through the avoiding area and extends into the cylindrical structure.
Preferably, the first electromagnet is fixed at the bottom in the tubular structure, and the second electromagnet is fixed at the end face of the extension part and corresponds to the first electromagnet in position.
Preferably, the side wall of the tubular structure is provided with a wire passing hole, and the wires of the first electromagnet and the second electromagnet extend out of the tubular structure through the wire passing hole.
Preferably, the inner wall of the cylindrical structure is covered with an insulating isolation sleeve.
Preferably, a guide sleeve for insulating side materials is installed at the top position in the cylindrical structure, and the periphery of the extension part is in sliding fit with the guide sleeve.
Preferably, the inner edge of the guide sleeve is provided with a sealing ring in sliding fit with the periphery of the extension part, and a limiting ring which is abutted against the sealing ring along the axial direction is arranged in the cylindrical structure.
Above-mentioned elevator is with adjustable electromagnetism damping device through changing the magnetic field intensity between first magnet and the second electro-magnet to change the repulsion force that two electro-magnets are close to one end, thereby change damping device's damping and in order to adapt to different vibration source frequencies, restrain vibration, promote passenger's travelling comfort in the sedan-chair.
Drawings
FIG. 1 is a schematic sectional view of an adjustable electromagnetic damping device for an elevator according to one embodiment;
description of the figure numbering:
1. a shock pad; 2. a first support member; 3. a first electromagnet; 4. a second support member; 5. an extension portion; 6. a second electromagnet; 7. a flange structure; 8. a bearing section; 9. a fixed shaft; 10. a rubber flat pad; 11. an anti-rotation limiting rod; 12. a wire passing hole; 13. an iron core; 14. a solenoid; 15. an insulating spacer sleeve; 16. a guide sleeve; 17. a seal ring; 18. a limiting ring; 19. a limiting clamp spring; 20. and (7) oil sealing.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
As shown in fig. 1, the utility model provides an elevator is with adjustable electromagnetism damping device, including two support pieces and the shock pad 1 of superpose between two support pieces, first support piece 2 in two support pieces is as tubular structure, and first electro-magnet 3 is installed to the one end in the tubular structure. The second support 4 of the two supports is provided with an extension part 5 penetrating through the inside of the cylindrical structure, and a second electromagnet 6 which is acted with the first electromagnet 3 is arranged on the extension part 5. The first electromagnet 3 and the second electromagnet 6 are electrified to generate the same magnetic fields, so that the first electromagnet and the second electromagnet repel each other, and the first support member 2 and the second support member 4 are acted by repulsive force, so that the damping device has a damping effect. And the repulsive force between the two electromagnets can be changed by adjusting the magnitude of the current so as to adjust the damping characteristic of the damping device, so that the vibration of a wider frequency band can be isolated, the vibration isolation effect is remarkable, and the active damping effect is achieved. And the rigidity of the damping device is not changed along with the use time, so that the elevator is comfortable to ride.
In this embodiment, the cushion 1 stacked between the two supports is designed to prevent the first electromagnet 3 and the second electromagnet 6, which are not energized, from being damaged by a rigid impact generated when the elevator is suddenly stopped during the installation stage or during a power failure. Meanwhile, the temporary shock absorption effect is prevented when the electromagnetic shock absorption device cannot supply electricity to the first electromagnet 3 and the second electromagnet 6 under other conditions.
In this embodiment the tubular structure has axially opposite top and bottom parts, wherein the bottom part is a closed structure and the outer rim is provided with a flange structure 7, the top part is an open structure and the extension 5 extends into the tubular structure through the top part.
In this embodiment, the top of the tubular structure is provided with an outwardly turned platform 8, and the cushion 1 is superposed on this platform 8. One surface of the shock pad 1 is arranged on the bearing platform part 8 of the first supporting part 2, and the other surface is attached to the bottom surface of the second supporting part 4.
Specifically, the middle part of the shock pad 1 is provided with an avoiding area, and the extending part 5 penetrates through the avoiding area and extends into the tubular structure.
In this embodiment, the first electromagnet 3 is fixed at the bottom of the cylindrical structure, and the second electromagnet 6 is fixed at the bottom of the extension part 5 and corresponds to the first electromagnet 3.
Specifically, the first electromagnet 3 is fixedly connected to the bottom of the cylindrical structure through a fixed shaft 9. The center of the outer edge of the bottom of the cylindrical structure is provided with an installation groove, and the flange structure 7 is arranged in the installation groove. An avoiding hole is formed in the mounting groove, so that the fixing shaft 9 can extend into the hole of the flange structure 7 through the avoiding hole. So that one end of the first electromagnet 3 can be fixed at the bottom of the tubular structure of the first support 2. The fixing shaft 9 plays a role in heat dissipation in addition to fixing the first electromagnet 3.
In particular, the second support element 4 comprises a support platform which is open to the function of supporting the support object, wherein the top surface of the support platform acts directly on the bottom surface of the support object. The supporting platform is connected with one end of the extending part 5 through bolt matching, and the other end of the supporting platform is provided with a second electromagnet 6. A hole is formed at the corresponding position of one end of the supporting platform and the extension part 5, so that a screw rod can simultaneously penetrate through the supporting platform and the extension part 5, and the head part of a bolt is positioned in the groove of the top surface of the supporting platform, so that the top surface of the head part of the bolt is flush with the top surface of the supporting platform.
Further, a rubber flat pad 10 is applied on the top surface of the support platform to flatten the support platform and prevent the second support 4 from moving.
In the present embodiment, an anti-rotation limiting rod 11 is connected between the bearing part 8 and the second support 4, and the anti-rotation limiting rod 11 is eccentrically arranged relative to the tubular structure.
Specifically, a first mounting table and a second mounting table connected with an anti-rotation limiting rod 11 are respectively arranged at positions corresponding to the outer edges of the supporting platform of the first supporting piece 2 and the second supporting piece 4 respectively. The two mounting tables are provided with rod passing holes, and the hole centers of the first mounting table and the second mounting table are overlapped along the projection in the vertical direction. Prevent changeing gag lever post 11 and can adopt the bolt, its screw rod part passes the pole hole of crossing on first mount table and the second mount table, and the head lower edge of screw rod supports and leans on the top surface of first mount table, embolias the screw rod with the nut from second mount table bottom surface one side, through screwing the nut to supporting and pressing in the second mount table bottom surface, opens spacing effect to prevent that first support piece 2 from taking place the rotational displacement after internal magnetic field produces. And the anti-rotation limiting rod 11 is adopted on the first supporting piece 2 and the second supporting piece 4 to achieve the effect of fixed connection.
In this embodiment, the sidewall of the tubular structure is opened with a wire passing hole 12, and the wires of the first electromagnet 3 and the second electromagnet 6 extend out of the tubular structure through the wire passing hole 12.
Specifically, the first electromagnet 3 and the second electromagnet 6 are both composed of an iron core 13 and a solenoid 14 wound outside the iron core 13 (in fig. 1, only the iron core and the solenoid of the first electromagnet 3 are labeled, and the iron core 13 and the solenoid 14 are respectively labeled, and the iron core and the solenoid of the second electromagnet are not labeled repeatedly because the second electromagnet has the same structure as the first electromagnet). When the solenoid 14 is energized, the iron core 13 is magnetized to generate a magnetic field. The close ends of the two iron cores 13 generate the same magnetic pole by applying currents with different directions to the solenoids 14 of the first electromagnet 3 and the second electromagnet 6, so that mutually repulsive forces are generated.
Specifically, the solenoids 14 of the first electromagnet 3 and the second electromagnet 6 extend to the outside of the electromagnetic damping device through the wire through holes 12, respectively, and are connected to the current regulators. When the number of turns of the solenoid 14 on the electromagnet is fixed, the electromagnetic magnetism is increased or decreased by adjusting the current of the solenoid 14, the magnetic field intensity is changed, the repulsive force of the adjacent ends of the first electromagnet 3 and the second electromagnet 6 is changed, and finally the function of adjusting the internal damping of the electromagnetic damping device is started. Through adjusting damping device's damping characteristic in the short time changes, then can make timely adjustment according to the vibration frequency of vibration source, better suppression vibration, the transmission of interference frequency such as isolated elevator host computer, elevator system improves elevator operation quality, promotes passenger's travelling comfort in the sedan-chair.
In other embodiments, the magnetic field strength can also be varied by varying the number of turns of the solenoid 14 of the first electromagnet 3 and the second electromagnet 6 without varying the current to energize the solenoid 14.
In the present embodiment, the iron core 13 in the first electromagnet 3 and the second electromagnet 6 includes, but is not limited to, a soft magnetic material, a hard magnetic material, a rectangular magnetic material, a metal, and the like.
In this embodiment, the inner wall of the cylindrical structure is covered with an insulating spacer 15. Therefore, a non-magnetic space is provided for the first electromagnet 3 and the second electromagnet 6, external metal particles which are easy to magnetize are isolated, influence on the magnetic field space caused by the fact that excessive impurities outside are attracted after a magnetic field is generated is reduced to the greatest extent, and stable work can be achieved after the magnetic fields generated by the first electromagnet 3 and the second electromagnet 6.
In this embodiment, a guide sleeve 16 of insulating side material is mounted in the top position within the tubular structure, and the outer periphery of the extension 5 is slidably fitted to the guide sleeve 16.
Specifically, where the inner peripheral wall of the top of the tubular structure corresponds to the outer peripheral wall of the extension portion 5, a guide sleeve 16 is further installed so that the extension portion 5 is movable in the vertical direction. When the repulsive force is changed due to the change of the magnetic field of the first electromagnet 3 and the second electromagnet 6 in the tubular structure, the extension part 5 is enabled to move vertically upwards or vertically downwards. The guide sleeve 16 can ensure that the second supporting member 4 can move along the axial direction of the guide sleeve 16, so that the damping device has better damping effect. And the guide sleeve 16 is an insulating material, also to isolate external metallic impurities to prevent the metallic impurities from affecting the internal magnetic field.
In this embodiment, the inner edge of the guide sleeve 16 is provided with a seal ring 17 which is in sliding fit with the outer periphery of the extension 5, and a stopper ring 18 which abuts against the seal ring 17 in the axial direction is mounted inside the cylindrical structure.
Specifically, the stop collar 18 is a lock nut with external threads, and is disposed on the top of the guide sleeve 16, and the top surface of the lock nut is flush with the top surface of the tubular structure. The sealing ring 17 is arranged between the inner edge of the guide sleeve 16 towards one end of the cylindrical structure and the corresponding outer peripheral wall of the extension part 5, and the movable range of the extension part 5 is limited in the cylindrical structure through the matching of the locking nut and the sealing ring 17.
Specifically, a limiting snap spring 19 is arranged between the outer edge of one end, facing the tubular structure, of the guide sleeve 16 and the inner peripheral wall of the tubular structure, and the guide sleeve 16 can be fixed in the tubular structure under the action of a locking nut and the limiting snap spring 19.
In the present embodiment, an oil seal 20 is further provided below the retainer ring 18, which acts as a lubricant when the extension 5 moves up and down in the vertical direction, and also acts to isolate external dust and impurities.
Above-mentioned adjustable electromagnetism damping device, utilize the principle that homopolar repulsion in the electromagnetic induction law, inside inserting iron core 13 back at circular telegram coil, iron core 13 is magnetized by circular telegram coil's magnetic field, iron core 13 after the magnetization has also become a magnet, like this because two magnetic fields superpose each other, thereby make the magnetism reinforcing of coil, homopolar repulsion's power is constituteed to two sets of the same coils, adjust electromagnetic repulsion's power through the magnetic flux size between the regulation magnetic field, make extension 5 along vertical direction up-and-down motion in uide bushing 16 under the effect of repulsion, so that second holding power acts on bearing thing bottom surface, in order to open initiative absorbing effect.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The adjustable electromagnetic damping device for the elevator comprises two supporting pieces and a damping pad overlapped between the two supporting pieces, and is characterized in that a first supporting piece of the two supporting pieces is used as a cylindrical structure, and a first electromagnet is installed at one end in the cylindrical structure;
and an extension part penetrating through the inside of the cylindrical structure is arranged on the second support part of the two support parts, and a second electromagnet which is acted with the first electromagnet is arranged on the extension part.
2. The adjustable electromagnetic damping device for elevators according to claim 1, wherein the cylindrical structure has opposite top and bottom portions in the axial direction, wherein the bottom portion is a closed structure and has a flanged structure at an outer edge, the top portion is an open structure and the extension portion protrudes into the cylindrical structure through the top portion.
3. An adjustable electromagnetic damping device for an elevator according to claim 2, wherein the top of the tubular structure has an outwardly turned landing portion on which the damping pad is superposed.
4. The adjustable electromagnetic damping device for an elevator according to claim 3, wherein an anti-rotation limit rod is connected between the bearing part and the second support member, and the anti-rotation limit rod is eccentrically disposed with respect to the cylindrical structure.
5. The adjustable electromagnetic shock absorbing device for the elevator as recited in claim 1, wherein an avoidance area is formed in a middle portion of the shock absorbing pad, and the extension portion penetrates through the avoidance area and extends into the tubular structure.
6. The adjustable electromagnetic damping device for an elevator according to claim 1, wherein the first electromagnet is fixed to a bottom portion of the tubular structure, and the second electromagnet is fixed to an end surface portion of the extension portion in a position corresponding to the position of the first electromagnet.
7. The adjustable electromagnetic shock absorption device for the elevator as recited in claim 1, wherein a wire passing hole is opened on a side wall of the tubular structure, and wires of the first electromagnet and the second electromagnet extend out of the tubular structure through the wire passing hole.
8. The adjustable electromagnetic damping device for elevators according to claim 1, wherein an inner wall of the cylindrical structure is covered with an insulating spacer.
9. The adjustable electromagnetic damping device for elevators according to claim 1, wherein a guide sleeve of an insulating side material is installed at a top position in the cylindrical structure, and an outer circumference of the extension is slidably fitted to the guide sleeve.
10. The adjustable electromagnetic shock absorbing device for the elevator as set forth in claim 9, wherein a seal ring slidably fitted to an outer periphery of the extension portion is provided at an inner edge of the guide sleeve, and a stopper ring axially abutting against the seal ring is installed inside the tubular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020235543.2U CN212004065U (en) | 2020-02-29 | 2020-02-29 | Adjustable electromagnetic damping device for elevator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020235543.2U CN212004065U (en) | 2020-02-29 | 2020-02-29 | Adjustable electromagnetic damping device for elevator |
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| CN212004065U true CN212004065U (en) | 2020-11-24 |
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| CN202020235543.2U Active CN212004065U (en) | 2020-02-29 | 2020-02-29 | Adjustable electromagnetic damping device for elevator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112869997A (en) * | 2021-01-12 | 2021-06-01 | 吉林大学 | Dedicated intraoperative position adjusting device of vascular surgeon |
| CN113565924A (en) * | 2021-07-13 | 2021-10-29 | 徐月红 | Supporting structure for electric automatization processing |
| CN114562534A (en) * | 2020-11-27 | 2022-05-31 | 比亚迪股份有限公司 | Buffer block, buffer block rigidity control method and automobile suspension system |
-
2020
- 2020-02-29 CN CN202020235543.2U patent/CN212004065U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114562534A (en) * | 2020-11-27 | 2022-05-31 | 比亚迪股份有限公司 | Buffer block, buffer block rigidity control method and automobile suspension system |
| CN112869997A (en) * | 2021-01-12 | 2021-06-01 | 吉林大学 | Dedicated intraoperative position adjusting device of vascular surgeon |
| CN113565924A (en) * | 2021-07-13 | 2021-10-29 | 徐月红 | Supporting structure for electric automatization processing |
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