CN112794189B - Magnetic levitation elevator uniform descending control system and magnetic levitation elevator - Google Patents
Magnetic levitation elevator uniform descending control system and magnetic levitation elevator Download PDFInfo
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- CN112794189B CN112794189B CN202110131735.8A CN202110131735A CN112794189B CN 112794189 B CN112794189 B CN 112794189B CN 202110131735 A CN202110131735 A CN 202110131735A CN 112794189 B CN112794189 B CN 112794189B
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- elevator
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- levitation elevator
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- 238000005339 levitation Methods 0.000 title claims abstract description 39
- 230000006698 induction Effects 0.000 claims abstract description 25
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
Abstract
The invention discloses a magnetic levitation elevator uniform descent control system and a magnetic levitation elevator, comprising a rectification circuit connected with a power supply, a driving power supply connected with the rectification circuit and an induction circuit; the driving power supply is connected with the coil of the magnetic levitation elevator to provide current required by power supply for the coil; the induction circuit is connected to the power supply to induce the on-off condition of the power supply; coil closed connecting wires are led out from two ends of the coil, and a switch relay is arranged on the coil closed connecting wires. When the elevator is powered down or out of control, the closed loop is formed by controlling the coil, the magnetic force lines of the cutting magnet generate induction current when the coil forming the closed loop moves, and the induction current applies a reaction force for preventing the coil from moving downwards to the closed coil, so that the elevator car is driven by the coil, and the elevator car tends to descend at a constant speed at a safe speed, and the safety of the elevator is ensured.
Description
Technical Field
The invention belongs to the technical field of elevators, and relates to a magnetic levitation elevator uniform descent control system and a magnetic levitation elevator.
Background
With the development of the building industry and the improvement of the living standard of residents, the demands of private villas, individual residences and the like on home elevators are increased, if the traditional lifting rope elevator is adopted, the horizontal vibration problem is very serious, the running noise is very large, meanwhile, the track of the traditional elevator requires lubricating oil and regular maintenance, and the cost is very high. In addition, the design and manufacturing difficulties of the lifting rope elevator are great for private villas and small-sized living demands, and particularly, the workload of installing, maintaining, debugging, checking, rope changing and the like of the steel wire rope is great. Due to the severe wear and corrosion, the steel wire rope has a short service life, and maintenance and replacement thereof become a heavy burden. Therefore, it is becoming increasingly impractical to use conventional roped elevators for private villas and subminiature residential buildings, so it is becoming increasingly necessary to develop a home elevator that is suitable for the needs of the private villas and the subminiature residences.
In the prior private villa elevator scheme, a screw elevator is generally adopted, a plunger of a straight-top elevator is processed into rectangular threads, a large nut with a thrust bearing is arranged on the top of an oil cylinder, and then the nut is driven to rotate through a motor via a speed reducer (or a belt), so that the screw is lifted up or down by the elevator, namely, a huge screw is simply placed under the elevator, and the elevator is lifted up and down along with the rotation of the screw.
However, screw elevators have a plurality of defects in household use, namely, the noise is overlarge, the screw elevators rotate on the screw through nuts, so that the mechanical noise is larger than that of other elevators, the noise source is closer, and the noise is easy to influence a user in household use; secondly, the running speed is low, the screw elevator is limited by a mechanical mechanism of the screw elevator and is propelled through the rotation of the nut on the screw, so that the running speed is low, the speed is only 0.15m/s, compared with the speed of a general traction elevator, the speed difference is large, and the screw elevator is difficult to meet the requirements of users with driving time.
If a magnetic levitation elevator can be developed, the requirements of the home elevator can be met; in a magnetic levitation elevator, the safety protection of the elevator is very important when the elevator is out of control or is in power failure, however, no safety protection scheme suitable for the magnetic levitation elevator exists in the prior art.
The foregoing background is only for the purpose of providing an understanding of the inventive concepts and technical aspects of the present application and is not necessarily prior art to the present application and is not intended to be used as an aid in the evaluation of the novelty and creativity of the present application in the event that no clear evidence indicates that such is already disclosed at the date of filing of the present application.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a magnetic levitation elevator uniform descent control system and a magnetic levitation elevator, so as to solve at least one of the problems in the prior art.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
A magnetic levitation elevator uniform descent control system comprises a rectification circuit connected with a power supply, a driving power supply connected with the rectification circuit and an induction circuit; the driving power supply is connected with the coil of the magnetic levitation elevator to provide current required by power supply for the coil; the induction circuit is connected to the power supply to induce the on-off condition of the power supply; coil closed connecting wires are led out from two ends of the coil, and a switch relay is arranged on the coil closed connecting wires.
In some embodiments, the sensing circuit senses an output state of the power supply, and when the power supply is in a normal working state, the sensing circuit outputs a TTL level to the switching relay, and the switching relay is in an open state; when the induction circuit senses that the power supply does not supply power, the induction circuit does not output TTL level, the switch relay is closed, and the coil forms a closed loop.
In some embodiments, the coil is mounted and fixed on an elevator car, and a magnet is mounted on an elevator sliding rail; when the magnetic levitation elevator works normally, the power supply supplies current required by electrification to the coil, and the coil drives the car to move under the action of magnetic force after electrification.
In some embodiments, the power supply is a 220V ac power supply, and the 220V ac power supply is rectified by a rectifying circuit and then provided to a driving power supply to provide current for normal power-on of the coil.
The technical scheme of another embodiment of the invention is as follows:
A magnetic levitation elevator, characterized in that: the magnetic levitation elevator uniform descending control system comprises an elevator car, left and right elevator sliding rails and the magnetic levitation elevator uniform descending control system according to the technical scheme of any embodiment.
In some embodiments, the maglev elevator further comprises a brake assembly, and the elevator car comprises a car frame, and the brake assembly is mounted on both sides of the car frame.
In some embodiments, the brake assembly includes a brake mounted to the car and a soft piece mounted to the elevator slide.
In some embodiments, the brake is a magnetic lock and the soft piece is a silicon steel piece.
Compared with the prior art, the constant-speed descending control system of the magnetic levitation elevator and the magnetic levitation elevator form a closed loop through the control coil when the elevator is powered off or out of control, magnetic force lines of the cutting magnet generate induction current when the coil which forms the closed loop moves, and the induction current applies a reaction force for preventing the coil from moving downwards to the closed coil, so that the elevator car is driven by the coil, and the elevator car tends to descend at a constant speed at a safe speed, and the safety of the elevator is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings for those skilled in the art.
Fig. 1 is a schematic diagram of a constant descent control system of a maglev elevator of the present invention;
fig. 2 is a schematic diagram of coils and magnets of the magnetic levitation elevator uniform descent control system of the present invention;
Fig. 3 is a schematic diagram of a magnetic levitation elevator according to another embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like should be construed broadly, as for example, they may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
It will be further understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner" and "outer," and the like, as used herein, are merely for convenience in describing the invention and simplifying the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.
The following will describe in detail.
As shown in fig. 1, fig. 1 is a diagram illustrating a uniform descent control system of a magnetic levitation elevator according to an embodiment of the present invention, and a system 100 includes a rectifying circuit connected to a power supply, a driving power supply connected to the rectifying circuit, and an induction circuit; the driving power supply is connected with the coil of the magnetic levitation elevator to provide current required by power supply for the coil; the induction circuit is connected to the power supply to induce the on-off condition of the power supply; coil closed connecting wires are led out from two ends of the coil, and a switch relay K is arranged on the coil closed connecting wires.
Specifically, in the embodiment of the present invention, the power supply is a 220V ac power supply, and the 220V ac power supply is rectified by the rectifying circuit and then provided to the driving power supply, so as to provide power for normal power-on of the coil.
The sensing circuit senses the output state of the 220V alternating current power supply, and when the 220V alternating current power supply is in a normal working state, the sensing circuit outputs 5V TTL level to the switching relay, and the switching relay is in an open state; when the induction circuit senses that the 220V alternating current power supply does not supply power, the induction circuit does not output TTL level, and the switch relay is closed; at this time, the coil forms a closed loop due to the switching relay being turned off.
Referring to fig. 2 and 3, the coil 200 is mounted and fixed to the elevator car 300, and the magnet 400 is mounted on the elevator slide rail; when the magnetic levitation elevator works normally, a 220V power supply supplies current required by electrification to the coil, and the coil drives the elevator car to move under the action of magnetic force after the electrification of the coil; meanwhile, the induction circuit senses that the power supply is in a normal working state, outputs 5VTTL levels to the switching relay K, and the switching relay is in an open state. When the power is off, the coil is in a power-off state, the induction circuit senses that the power supply is abnormal, the induction circuit does not output TTL level, the switching relay is closed, and the coil forms a closed loop. Because the coil is powered down, the car begins to fall under the condition that no magnetic force is used for driving, at the moment, the coil forming the closed loop falls along with the car, the closed coil moves relative to the magnet, magnetic lines of force formed by the magnetic field of the magnet are cut, so that the magnetic flux of the closed coil changes, induced current is generated, the generated induced current exerts a reaction force for preventing the coil from moving downwards on the closed coil according to Lenz's law, and the car is driven by the coil, so that the car tends to fall at a constant speed at a safe speed.
The invention can ensure the uniform descent of the lift car when the power of the elevator is off and ensure the safety of the elevator by selecting proper magnets and coils.
Referring to fig. 3, as another embodiment of the present invention, a magnetic levitation elevator 500 includes an elevator car, left and right elevator sliding rails, and an elevator uniform descent control system according to the foregoing embodiment.
In some embodiments, the maglev elevator further comprises a brake assembly, and the elevator car comprises a car frame, and the brake assembly is mounted on both sides of the car frame.
In some embodiments, the brake assembly includes a brake mounted on the car and a soft piece mounted on the elevator slide; in some embodiments, the brake is a magnetic lock and the soft piece is a silicon steel piece.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the invention.
In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope as defined by the appended claims.
Claims (7)
1.A magnetic levitation elevator uniform descent control system is characterized in that: the power supply comprises a rectifying circuit connected with a power supply, a driving power supply connected with the rectifying circuit and an induction circuit; the driving power supply is connected with the coil of the magnetic levitation elevator to provide current required by power supply for the coil; the induction circuit is connected to the power supply to induce the on-off condition of the power supply; coil closed connecting wires are led out from two ends of the coil, and a switch relay is arranged on the coil closed connecting wires; the induction circuit senses the output state of the power supply, and when the power supply is in a normal working state, the induction circuit outputs TTL level to the switching relay, and the switching relay is in an open state; when the induction circuit senses that the power supply does not supply power, the induction circuit does not have TTL level output, the switch relay is closed, the coil forms a closed loop, the magnetic force lines of the cutting magnet generate induction current when the coil forming the closed loop moves, and the induction current applies a reaction force for preventing the coil from moving downwards to the closed coil.
2. The magnetic levitation elevator uniform descent control system of claim 1, wherein: the coil is installed and fixed on the elevator car, and the magnet is installed on the elevator sliding rail; when the magnetic levitation elevator works normally, the power supply supplies current required by electrification to the coil, and the coil drives the car to move under the action of magnetic force after electrification.
3. The magnetic levitation elevator uniform descent control system as defined in claim 2, wherein: the power supply is 220V alternating current power supply, and the 220V alternating current power supply is rectified by the rectifying circuit and then supplied to the driving power supply so as to provide current for normal work and power-on of the coil.
4. A magnetic levitation elevator, characterized in that: a magnetic levitation elevator uniform descent control system comprising an elevator car, left and right elevator slide rails, and any of claims 1-3.
5. Magnetic levitation elevator according to claim 4, characterized in that: the magnetic levitation elevator further comprises a brake assembly, the elevator car comprises a car frame, and the brake assembly is arranged on two sides of the car frame.
6. Magnetic levitation elevator according to claim 5, characterized in that: the braking component comprises a braking piece arranged on the lift car and a soft piece arranged on the slide rail of the lift.
7. Magnetic levitation elevator according to claim 6, characterized in that: the braking piece is a magnetic lock, and the soft piece is a silicon steel piece.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110131735.8A CN112794189B (en) | 2021-01-30 | 2021-01-30 | Magnetic levitation elevator uniform descending control system and magnetic levitation elevator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110131735.8A CN112794189B (en) | 2021-01-30 | 2021-01-30 | Magnetic levitation elevator uniform descending control system and magnetic levitation elevator |
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| CN112794189A CN112794189A (en) | 2021-05-14 |
| CN112794189B true CN112794189B (en) | 2024-06-25 |
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| CN113277387A (en) * | 2021-06-08 | 2021-08-20 | 湖北工业大学 | Power-assisted energy-saving device of vertical lifting elevator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112794191A (en) * | 2021-01-30 | 2021-05-14 | 深圳市嘉伯科技有限公司 | Be applied to magnetic suspension elevator's slide rail and magnetic suspension elevator |
| CN215326324U (en) * | 2021-01-30 | 2021-12-28 | 深圳市嘉伯科技有限公司 | Magnetic suspension elevator is descending control system and magnetic suspension elevator at uniform velocity |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101112957A (en) * | 2006-07-28 | 2008-01-30 | 程磊 | Magnetic levitation elevator |
| DE102009048822A1 (en) * | 2009-10-09 | 2011-04-14 | Siemens Aktiengesellschaft | Transport system with electromagnetic brake |
| FI126998B (en) * | 2015-03-24 | 2017-09-15 | Kone Corp | Energizing circuit for a magnetizing coil for an operating brake, elevator and method for energizing a magnetizing coil for an operating brake on an elevator |
| US10329124B2 (en) * | 2015-08-25 | 2019-06-25 | Otis Elevator Company | Elevator wireless power supply |
| CN205802730U (en) * | 2016-06-29 | 2016-12-14 | 亚洲富士长林电梯（新余）有限公司 | A kind of multifunctional lift |
| CN106006285A (en) * | 2016-07-27 | 2016-10-12 | 京东方科技集团股份有限公司 | Elevator protective device and method |
| CN106185561B (en) * | 2016-09-13 | 2019-03-26 | 成都创慧科达科技有限公司 | A kind of magnetic levitation elevator and suspension control system and suspension control method |
| EP3367068A1 (en) * | 2017-02-27 | 2018-08-29 | KONE Corporation | Method for levitation control of a linear motor, method for determining a position of a linear motor, inductive sensing device, and elevator system |
| CN108408535B (en) * | 2018-03-30 | 2020-06-02 | 太原科技大学 | Safety protection system used when elevator falls down |
| CN109095334A (en) * | 2018-09-12 | 2018-12-28 | 深圳市嘉伯科技有限公司 | A kind of magnetic levitation elevator and its implementation |
| CN109809279A (en) * | 2019-02-20 | 2019-05-28 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | A kind of magnetic levitation elevator system |
| CN109995302B (en) * | 2019-03-06 | 2020-10-30 | 佛山市磁家有导科技有限公司 | Magnetic suspension linear motor without Hall sensor and motor control method |
-
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112794191A (en) * | 2021-01-30 | 2021-05-14 | 深圳市嘉伯科技有限公司 | Be applied to magnetic suspension elevator's slide rail and magnetic suspension elevator |
| CN215326324U (en) * | 2021-01-30 | 2021-12-28 | 深圳市嘉伯科技有限公司 | Magnetic suspension elevator is descending control system and magnetic suspension elevator at uniform velocity |
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