CN210735904U

CN210735904U - Electromagnetism-assisted elevator falling buffer device

Info

Publication number: CN210735904U
Application number: CN201920892948.0U
Authority: CN
Inventors: 张延年; 徐向新; 吴金国; 李强
Original assignee: Shenyang Jianzhu University
Current assignee: Shenyang Jianzhu University
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-06-12
Anticipated expiration: 2029-06-14

Abstract

The utility model provides an electromagnetism auxiliary elevator buffer that falls, belongs to elevator technical field, including light receiver, light emitter, pressure-bearing steel sheet, high strength spring, electro-magnet, power, components such as controller are provided with four electro-magnets and rubber block in the elevator bottom, at the lateral wall of elevartor shaft, have arranged light emitter and light receiver, have arranged a plurality of rows of high strength spring in the bottom of elevartor shaft, have arranged the electro-magnet all around, and pressure-bearing steel sheet has been arranged on the high strength spring upper portion. The optical receiver and the optical transmitter are connected with the electromagnet, the controller and the power supply. Falling when the elevator accident, elevator bottom rubber blocks light, and the electro-magnet power is put through immediately to the controller, and the electro-magnet of elevator bottom and the electro-magnet homopolar of elevartor shaft bottom repel each other, force the elevator to slow down, and cushion through bearing plate, high strength spring, the utility model discloses have dual buffer system, can effectually cushion falling the elevator, safe and reliable bears the weight of the dynamic height, the sexual valence ratio is higher.

Description

Electromagnetism-assisted elevator falling buffer device

Technical Field

The utility model belongs to the technical field of the elevator, in particular to supplementary elevator buffer that falls of electromagnetism.

Background

An elevator is a permanent transport device serving a number of specific floors in a building, the cars of which travel in at least two rigid tracks perpendicular to the horizontal or inclined at an angle of less than 15 ° to the vertical. The modern elevator mainly comprises a traction machine, a guide rail, a counterweight, a safety device, a signal control system, a lift car, a hall door and the like. These parts are installed in the hoistway and machine room of the building, respectively. Usually, a steel wire rope is used for friction transmission, the steel wire rope bypasses a traction sheave, two ends of the steel wire rope are respectively connected with a car and a balance weight, and a motor drives the traction sheave to lift the car. The anti-collision device of the elevator is mainly used for protecting the elevator and passengers when the elevator breaks down and falls down, the elevator is used as transportation equipment which runs in the vertical direction to play an important role in modern life, and in the running process of the elevator, due to unpredictable factors such as traction friction force, steel wire rope extension, insufficient brake braking force or control system failure and the like, the phenomenon that a car or a counterweight exceeds a limit position to squat can occur, so that serious safety accidents are caused.

Elevator buffer installs in elevator well bottom, when elevator car trouble falls, can play final buffering, braking and guard action to the car directly hits the end, reduces the elevator and falls the harm to the passenger in the elevator car. The buffer device applied to the elevator at present is generally a spring buffer, although the spring buffer can quickly absorb impact energy, the rebound force of the spring buffer is large, and the elastic potential energy is quickly released and can hurt passengers again, so that the elevator limit buffer device capable of slowly releasing the elastic potential energy is urgently needed to be designed, and the existing elevator anti-collision device is too single in function, too few in protective measures and not very obvious in effect.

Disclosure of Invention

In order to solve the problem that exists, the utility model provides an electromagnetism auxiliary elevator buffer that falls, the device is provided with four electro-magnets and rubber block in the elevator bottom, at the lateral wall of elevartor shaft, has arranged light emitter and photoreceiver, and the elevartor shaft bottom is equipped with high strength spring, has arranged the electro-magnet all around, and the pressure-bearing steel sheet has been arranged on high strength spring upper portion, photoreceiver links to each other with electro-magnet, controller, power with the light emitter, realizes the supplementary purpose that the buffering elevator of electro-magnet falls.

The utility model adopts the technical scheme as follows:

an electromagnetic-assisted elevator falling buffer device comprises an elevator electromagnet, a rubber block, a light emitter, a light receiver, an elastic damping material, a pressure-bearing steel plate, a high-strength spring, an elevator shaft electromagnet, a power supply and a controller, wherein the elevator electromagnet is arranged at the bottom of an elevator, the elevator electromagnet is a cylindrical steel block externally-wound coil, a semi-elliptical rubber block is arranged at the bottom of the elevator, and the lowest end of the rubber block is lower than the lowest end of the elevator electromagnet in height; the elevator shaft electromagnet is consistent with the elevator electromagnet in position and size; the elevator high-strength spring is characterized in that a pressure-bearing steel plate is arranged on the upper portion of the high-strength spring, the top end of the pressure-bearing steel plate is higher than an elevator shaft magnet, an elastic damping material is arranged on the upper portion of the pressure-bearing steel plate, a light emitter and a light receiver are arranged on the same height of the opposite side walls of the elevator shaft respectively, the light emitter and the light receiver are connected with a controller, the controller is connected with a power supply, and the power supply is connected.

Furthermore, four corners of the bottom of the elevator are respectively provided with an elevator electromagnet.

Furthermore, the contour of the pressure-bearing steel plate is a square corner part, a quarter circle is removed, and the radius of the quarter circle is larger than that of the electromagnet of the elevator shaft.

Further, the winding direction of the coil of the elevator electromagnet is opposite to the winding direction of the elevator shaft electromagnet.

Further, the elastic damping material is semi-elliptical.

Furthermore, the power supply is a direct current power supply special for the electromagnet system and is not connected with the elevator lifting system.

The utility model has the advantages and the effect:

the utility model discloses have multiple buffer system, can effectually cushion the elevator that falls, safe and reliable bears the weight of the dynamic height, and the price/performance ratio is higher, and economic effect is good.

Drawings

FIG. 1 is a schematic diagram of the present system;

FIG. 2 is a schematic diagram of the instant the system triggers the electromagnetic device;

FIG. 3 is a schematic diagram of the positions of a pressure-bearing steel plate and a high-pressure spring of the system;

FIG. 4 is a schematic diagram of the electromagnetic apparatus of the present system;

FIG. 5 is a schematic diagram of the current direction and magnetic poles of the electromagnet coil;

fig. 6 is a program diagram of the control system.

In the figure, 1 is the elevator, 2 is the elevator electro-magnet, 3 is the rubber piece, 4 is the light emitter, 5 is photoreceiver, 6 is elastic damping material, 7 is the pressure-bearing steel sheet, 8 is high strength spring, 9 is the elevartor shaft, 10 is the elevartor shaft electro-magnet, 11 is the power, 12 is the controller.

Detailed Description

The invention is further described below with reference to the drawings and examples.

Example 1

As shown in fig. 1 and 2, the elevator shaft damping device mainly comprises a light emitter 4, a light receiver 5, an elastic damping material 6, a pressure-bearing steel plate 7, a high-strength spring 8, an elevator shaft electromagnet 10, a power supply 11 and a controller 12.

Four corners department of elevator 1's bottom bonds respectively has an elevator electro-magnet 2, elevator electro-magnet 2 is that a cylindrical steel block twines the coil outward and constitutes, bonds in the elevator bottom and has a cross-section for elliptical rubber block 3, the least significant end of rubber block 3 is less than elevator electro-magnet 2's least significant end in the height.

The elevator shaft is characterized in that a plurality of rows of high-strength springs 8 are arranged at the bottom end of the elevator shaft 9, an elevator shaft electromagnet 10 is arranged at four corners of the periphery of the outside of each high-strength spring 8, each elevator shaft electromagnet 10 is composed of a cylindrical steel block outer winding coil, and the size and the position of each elevator shaft electromagnet are consistent with those of the elevator electromagnet 2. The upper portion of the high-strength spring 8 is welded with a pressure-bearing steel plate 7, as shown in fig. 3, the contour of the pressure-bearing steel plate 7 is a square, a quarter circle is removed at the corner, the radius of the quarter circle is slightly larger than that of the elevator shaft electromagnet 10, the top end of the pressure-bearing steel plate 7 is higher than the top end of the elevator shaft magnet 10 in height, the upper portion of the pressure-bearing steel plate 7 is glued with an elastic damping material 6, and the cross section of the elastic damping material 6 is semi-elliptical.

At the same height of the side wall of the elevator shaft 9, there are provided one light emitter 4 and one light receiver 5, respectively. As shown in fig. 4 and 6, the optical transmitter 4 and the optical receiver 5 are connected to a controller 12. The optical transmitter is of HFBR-1414 type, and the optical receiver is of HFBR-2412 type. The controller 12 is connected with a power supply 11, the power supply 11 is connected with the elevator electromagnet 2 and the elevator shaft magnet 10, and the commands of the controller 12 are as follows: when the optical receiver 5 does not receive the optical signal, the power supply 11 is turned on.

As shown in fig. 5, the winding direction of the coil of the elevator electromagnet 2 is opposite to the winding direction of the hoistway electromagnet 10.

When the elevator falls and the rubber block at the bottom of the elevator 1 blocks light, the light receiver 5 cannot receive a light signal sent by the light emitter 4, the control system is switched on immediately, the elevator electromagnet 2 and the elevator shaft electromagnet 10 are both magnetic, the like poles of the two repel each other, and upward thrust is generated. When the elevator 1 continuously falls, the rubber block 3 contacts the elastic damping material 6, the elastic damping material 6 deforms, energy consumption buffering is achieved, the elastic damping material 6 transmits the force on the upper portion to the pressure-bearing steel plate 7, the pressure-bearing steel plate 7 transmits the force to the high-strength spring 8, and energy consumption buffering is achieved.

The power supply 11 is a direct current power supply special for an electromagnet system and is not connected with an elevator lifting system.

Claims

1. The utility model provides an electromagnetism auxiliary elevator buffer that falls which characterized in that: the device comprises an elevator electromagnet (2), a rubber block (3), a light emitter (4), a light receiver (5), an elastic damping material (6), a pressure-bearing steel plate (7), a high-strength spring (8), an elevator shaft electromagnet (10), a power supply (11) and a controller (12), wherein the elevator electromagnet (2) is arranged at the bottom of the elevator (1), the elevator electromagnet (2) is a cylindrical steel block externally-wound coil, the bottom of the elevator is provided with the semi-elliptical rubber block (3), and the lowest end of the rubber block (3) is lower than the lowest end of the elevator electromagnet (2) in height; a high-strength spring (8) is arranged at the bottom of the elevator shaft (9), an elevator shaft electromagnet (10) is arranged outside the high-strength spring (8), and the position and the size of the elevator shaft electromagnet (10) are consistent with those of the elevator electromagnet (2); high-strength spring (8) upper portion is equipped with pressure-bearing steel sheet (7), pressure-bearing steel sheet (7) top height is higher than elevartor shaft electro-magnet (10), pressure-bearing steel sheet (7) upper portion is equipped with elastic damping material (6), be equipped with light emitter (4) and photoreceiver (5) on the relative lateral wall looks co-altitude of elevartor shaft (9) respectively, light emitter (4) and photoreceiver (5) are connected with controller (12), and controller (12) are connected with power (11), and power (11) link to each other with elevator electro-magnet (2) and elevartor shaft electro-magnet (10).

2. An electromagnetically assisted elevator fall buffer as claimed in claim 1, wherein: four corners of the bottom of the elevator (1) are respectively provided with an elevator electromagnet (2).

3. An electromagnetically assisted elevator fall buffer as claimed in claim 1, wherein: the contour of the pressure-bearing steel plate (7) is a square, the corner of the square is removed with a quarter circle, and the radius of the quarter circle is larger than that of the elevator shaft electromagnet (10).

4. An electromagnetically assisted elevator fall buffer as claimed in claim 1, wherein: the winding direction of the coil of the elevator electromagnet (2) is opposite to the winding direction of the elevator shaft electromagnet (10).

5. An electromagnetically assisted elevator fall buffer as claimed in claim 1, wherein: the elastic damping material (6) is semi-elliptical.

6. An electromagnetically assisted elevator fall buffer as claimed in claim 1, wherein: the power supply (11) is a direct current power supply special for the electromagnet system and is not connected with the elevator lifting system.