CN112794189A - Magnetic suspension elevator is descending control system and magnetic suspension elevator at uniform velocity - Google Patents
Magnetic suspension elevator is descending control system and magnetic suspension elevator at uniform velocity Download PDFInfo
- Publication number
- CN112794189A CN112794189A CN202110131735.8A CN202110131735A CN112794189A CN 112794189 A CN112794189 A CN 112794189A CN 202110131735 A CN202110131735 A CN 202110131735A CN 112794189 A CN112794189 A CN 112794189A
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- elevator
- coil
- power supply
- magnetic suspension
- magnetic
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- 239000000725 suspension Substances 0.000 title claims abstract description 38
- 230000006698 induction Effects 0.000 claims abstract description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000005339 levitation Methods 0.000 claims description 4
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 206010057071 Rectal tenesmus Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 208000012271 tenesmus Diseases 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000008859 change 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
- 230000005611 electricity Effects 0.000 description 1
- 230000004907 flux 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
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
-
- 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
-
- 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
Landscapes
- 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 suspension elevator constant-speed descending control system and a magnetic suspension elevator, which comprise 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 a coil of the magnetic suspension elevator to provide current required by electrifying for the coil; the induction circuit is connected to the power supply to induce the power-on and power-off condition of the power supply; and coil closing connecting wires are led out from two ends of the coil, and a switch relay is arranged on the coil closing connecting wires. According to the elevator car, when the elevator is powered off or out of control, the control coil forms a closed loop, when the coil forming the closed loop moves, the magnetic line of force of the cutting magnet generates induction current, the induction current applies a reaction force for preventing the coil from moving downwards to the closed loop, so that the car is driven by the coil to descend at a constant 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 constant-speed descending control system of a magnetic suspension elevator and the magnetic suspension elevator.
Background
Along with the development of the building industry and the improvement of the living standard of residents, the demands of private villas, individual houses and the like on home elevators are increased, if the traditional lifting rope elevator is adopted, the horizontal vibration problem is very serious, the operation noise is very large, and meanwhile, the track of the traditional elevator requires lubricating oil and regular maintenance, so that the cost is very high. In addition, for the requirements of private villas and small-sized living, the design and manufacturing difficulties of the lifting rope elevator are high, and especially, the workload of installing, maintaining, debugging, inspecting, changing the rope and the like of the steel wire rope is high. Due to the severe wear and corrosion, the service life of the steel cord is short, and its maintenance and replacement become a heavy burden. Therefore, for private villas and subminiature residential buildings, it is becoming impractical to use conventional rope elevators, and there is an increasing need to develop a home elevator suitable for the needs of private villas and small-sized residences.
In the present private villa elevator scheme, generally adopt the screw rod elevator, the screw rod elevator is processed into the rectangle screw thread with the plunger of direct-acting type elevator, installs the big nut that has thrust bearing in the hydro-cylinder top again, then drives the nut rotation through speed reducer (or belt) through the motor to make the elevator that the screw rod jacking car ascended or descend, it is just put a huge screw at the elevator bottom simply to say, along with the rotation of screw the car is ascending and descend.
However, the screw elevator has many disadvantages in household, firstly, the noise is too large, and the screw elevator is characterized in that the nut rotates on the screw, so the mechanical noise is larger than that of other elevators, and the noise source is closer, and the noise is easy to affect users when the elevator is used at home; secondly, the operation speed is slow, the screw elevator is limited by a mechanical mechanism of the screw elevator, and the screw elevator is propelled by the rotation of the nut on the screw, so the operation speed is slow, the speed is only 0.15m/s, and the speed difference is larger than the speed of 0.4m/s of a common traction type elevator, and the screw elevator cannot meet the requirement of users in the time of driving.
If a magnetic suspension elevator can be developed, the requirement of a household elevator can be met; in a magnetic suspension elevator, safety protection when the elevator is out of control or power failure is a very important thing, however, in the prior art, no safety protection scheme suitable for the magnetic suspension elevator exists.
The above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and should not be used for evaluating the novelty and inventive step of the present application in the case that there is no clear evidence that the above content is disclosed at the filing date of the present patent application.
Disclosure of Invention
In order to solve the above problems, the present invention provides a constant descending control system for a magnetic suspension elevator and a magnetic suspension elevator, so as to solve at least one of the problems in the prior art.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a magnetic suspension elevator constant-speed descending control system 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 a coil of the magnetic suspension elevator to provide current required by electrifying for the coil; the induction circuit is connected to the power supply to induce the power-on and power-off condition of the power supply; and coil closing connecting wires are led out from two ends of the coil, and a switch relay is arranged on the coil closing connecting wires.
In some embodiments, the sensing circuit senses the output state of the power supply, when the power supply is in a normal working state, the sensing circuit outputs a TTL level to the switch relay, and the switch relay is in an open state; and when the induction circuit induces 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 fixedly installed on an elevator car, and a magnet is installed on an elevator sliding rail; when the magnetic suspension elevator works normally, the power supply supplies current required by electrifying to the coil, and the coil drives the lift car to move under the action of the magnetic force after being electrified.
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 the driving power supply to supply current for powering up the coil in normal operation.
The technical scheme of another embodiment of the invention is as follows:
a magnetic suspension elevator, characterized in that: the magnetic suspension elevator constant-speed descending control system comprises an elevator car, a left elevator sliding rail, a right elevator sliding rail and the magnetic suspension elevator constant-speed descending control system in the technical scheme of any one of the embodiments.
In some embodiments, the maglev elevator further comprises a brake assembly, 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 member mounted to the car and a flexible sheet mounted to the elevator slide.
In some embodiments, the braking member is a magnetic lock, and the soft iron sheet is a silicon steel sheet.
Compared with the prior art, the constant-speed descending control system of the magnetic suspension elevator and the magnetic suspension elevator form a closed loop through the control coil when the elevator is powered off or out of control, the coil forming the closed loop cuts magnetic lines of force of the magnet to generate induced current when moving, the induced current applies a counterforce preventing the coil from moving downwards to the closed coil, and therefore the cage is driven by the coil, the cage 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 in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings.
Fig. 1 is a schematic view of a constant-speed descending control system of a magnetic suspension elevator of the invention;
fig. 2 is a schematic diagram of a coil and a magnet of the constant speed descending control system of the magnetic suspension elevator of the invention;
fig. 3 presents a diagrammatic view of a magnetic levitation elevator according to another embodiment of the invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
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 are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the invention.
The following are detailed below.
As shown in fig. 1, fig. 1 is a schematic diagram of a constant-speed descending control system of a magnetic suspension elevator according to an embodiment of the present invention, and the system 100 includes a rectification circuit connected to a power supply, a driving power supply connected to the rectification circuit, and an induction circuit; the driving power supply is connected with a coil of the magnetic suspension elevator to provide current required by electrifying for the coil; the induction circuit is connected to the power supply to induce the power-on and power-off condition of the power supply; and coil closing connecting wires are led out from two ends of the coil, and a switch relay K is arranged on the coil closing 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 a rectifier circuit and then provided to the driving power supply, so as to provide current for the coil to be powered on during normal operation.
The induction circuit induces the output state of the 220V alternating current power supply, when the 220V alternating current power supply is in a normal working state, the induction circuit outputs 5V TTL level to the switch relay, and the switch relay is in an open state; when the induction circuit induces 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, since the switching relay is closed, the coil forms a closed loop.
Referring to fig. 2 and 3, the coil 200 is mounted and fixed on an elevator car 300, and a magnet 400 is mounted on an elevator slide rail; when the magnetic suspension elevator works normally, a 220V power supply provides current required by electrifying for the coil, and the coil drives the elevator car to move under the action of the magnetic force after being electrified; meanwhile, the induction circuit senses that the power supply is in a normal working state, outputs 5VTTL level to the switch relay K, and the switch 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 a TTL level, the switch relay is closed, and the coil forms a closed loop. Because the coil falls the electricity, the car begins the tenesmus under the circumstances that does not have magnetic drive, at this moment, the coil that forms closed circuit is along with the car tenesmus, closed coil and magnet relative motion cut the magnetic line of force that the magnet magnetic field formed, thereby make the magnetic flux of closed coil change, thereby produce induced-current, according to lenz's law, produced induced-current exerts a counter force that prevents the coil downstream to closed coil, thereby drive the car through the coil, make the car tend to at the uniform velocity decline with safe speed.
According to the invention, by selecting the proper magnets and coils, the constant-speed descending of the elevator car can be ensured when the elevator is powered off, and the safety of the elevator is ensured.
Referring to fig. 3, a magnetic suspension elevator 500 as another embodiment of the present invention includes an elevator car, two left and right elevator sliding rails, and an elevator constant-speed descending control system according to the above-described embodiment.
In some embodiments, the maglev elevator further comprises a brake assembly, 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 comprises a brake part mounted on the car and a soft body sheet mounted on the elevator sliding rail; in some embodiments, the braking member is a magnetic lock, and the soft iron sheet is a silicon steel sheet.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
In this specification, the schematic representations of the terms used above are not necessarily intended to refer 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, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although 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 of the invention as defined by the appended claims.
Claims (8)
1. A magnetic suspension elevator is at uniform velocity decline control system which characterized in that: the device 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 a coil of the magnetic suspension elevator to provide current required by electrifying for the coil; the induction circuit is connected to the power supply to induce the power-on and power-off condition of the power supply; and coil closing connecting wires are led out from two ends of the coil, and a switch relay is arranged on the coil closing connecting wires.
2. The system for controlling the uniform descending speed of the magnetic suspension elevator as claimed in claim 1, wherein: the induction circuit induces the output state of the power supply, when the power supply is in a normal working state, the induction circuit outputs TTL level to the switch relay, and the switch relay is in an open state; and when the induction circuit induces 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.
3. The system for controlling the uniform descending speed of the magnetic suspension elevator as claimed in claim 2, wherein: the coil is fixedly arranged on the elevator car, and the elevator sliding rail is provided with a magnet; when the magnetic suspension elevator works normally, the power supply supplies current required by electrifying to the coil, and the coil drives the lift car to move under the action of the magnetic force after being electrified.
4. The system for controlling the uniform descending speed of the magnetic suspension elevator as claimed in claim 3, wherein: the power supply is a 220V alternating current power supply, and the 220V alternating current power supply is rectified by the rectifying circuit and then is supplied to the driving power supply so as to supply current for the coil to normally work and electrify.
5. A magnetic suspension elevator, characterized in that: the constant-speed descending control system of the magnetic suspension elevator comprises an elevator car, a left elevator slide rail, a right elevator slide rail and the constant-speed descending control system of the magnetic suspension elevator as claimed in any one of claims 1 to 4.
6. The magnetic levitation elevator as set forth in claim 5, characterized in that: the magnetic suspension elevator also comprises a braking component, the elevator car comprises a car frame, and the braking component is arranged on two sides of the car frame.
7. The magnetic levitation elevator as set forth in claim 6, characterized in that: the braking assembly comprises a braking part arranged on the elevator car and a soft body sheet arranged on the elevator sliding rail.
8. The magnetic levitation elevator as set forth in claim 7, characterized in that: the braking piece is a magnetic lock, and the soft iron sheet is a silicon steel sheet.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| 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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| Publication Number | Publication Date |
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| CN112794189A true CN112794189A (en) | 2021-05-14 |
| CN112794189B CN112794189B (en) | 2024-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110131735.8A Active CN112794189B (en) | 2021-01-30 | 2021-01-30 | Magnetic levitation elevator uniform descending control system and magnetic levitation elevator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113277387A (en) * | 2021-06-08 | 2021-08-20 | 湖北工业大学 | Power-assisted energy-saving device of vertical lifting elevator |
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| CN112794189B (en) | 2024-06-25 |
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