KR102097873B1 - Brake System for Linear Motor Type Elevator - Google Patents

Abstract

The present invention relates to a linear motor elevator brake device. The linear motor elevator brake device includes a braking module that can be moved by electromagnetic suction force generated between the brake module and a stator to operate the braking module by the electromagnetic suction force by a braking mover of the braking module and the elastic force of an elastic member. Through this, it is possible to exhibit stable braking performance by generating braking force by the elastic force in the power-off state of the braking module, and to control the operation of the braking module by generating or releasing the electromagnetic suction force by supplying and blocking DC power to a coil of the braking mover through an extra DC power supply part. Accordingly, system configuration and production can be easily performed by having a simple structure and a simple control operation.

Description

Brake system for elevators {Brake System for Linear Motor Type Elevator}

The present invention relates to a brake device for a linear motor elevator. More specifically, by constructing a braking module that can be moved by the electromagnetic suction force generated between the stator, the braking module can be operated by the electromagnetic suction force by the braking mover of the braking module and the elastic force of the elastic member. , Through this, it is possible to exert stable braking performance by generating braking force by elastic force in the power-off state of the braking module, and electromagnetic by supplying and blocking DC power to the coil of the brake mover through a separate DC power supply. The brake device of the linear motor type elevator that can control the operation of the braking module by generating or releasing the suction force, and thus, the structure is simple and the control operation is simple, so that the system configuration and production can be easily performed. It is about.

For skyscrapers (over 1000m), the biggest problem is the transportation system.

Conventional rope-type elevators use a rope of the current structure and materials to satisfy the regulations that set the safety factor of 10 times or more of the breaking strength of the rope when the hoisting stroke becomes large, and the ratio of the weight of the rope to the total suspension load increases. In the Han, the stroke is 700-800m, which is a practical limit.

In addition, since the rope type elevator can operate only one elevator car on one hoistway in structure, it is necessary to increase the number of elevator installations in proportion to the number of floors of the building in order to reduce the waiting time for the elevator.

Therefore, in a high-rise building, it is predicted that the ratio of the elevator core area to the horizontal projected floor area of the entire building exceeds 50%, resulting in a very uneconomical building.

In order to overcome the limitations of such a rope type elevator, expectations for a ropeless elevator of a linear motor drive type are increasing. The ropeless elevator can compensate for the shortcomings of the existing rope-type elevators, and it is possible to efficiently use the building space by circulating the elevator car and operating multiple elevator cars in one hoistway.

Of course, in the linear motor type elevator, a brake device capable of stopping the elevator car is necessary, as in the case of a rope type elevator. Is required.

It is advantageous that such a brake device is designed to be optimized to not only exhibit stable braking performance, but also that the weight of the device does not act as a factor that interferes with the movement of the elevator car, and its control method and structure are also simply manufactured. To date, the level of development of a brake device applicable to a linear motor type elevator is insignificant.

Korean Patent Publication No. 10-1998-025612

The present invention was invented to solve the problems of the prior art, the object of the present invention is to configure the braking module that can move by the electromagnetic suction force generated between the stator, the electronic by the braking mover of the braking module It is possible to operate the braking module by the miracle suction force and the elastic force of the elastic member, thereby generating a braking force by the elastic force in the power-off state of the braking module to provide a stable braking performance. Is to provide.

Another object of the present invention is to control the operation of the braking module by generating or releasing electromagnetic suction power by supplying and blocking DC power to the coil of the brake mover through a separate DC power supply, thereby A linear motor type elevator that can generate or release the braking power simply by supplying and shutting off DC power through the DC power supply, so that the structure is simple and the control operation is simple, making system construction and production easy. It is to provide a brake device.

The present invention is a brake device of a linear motor type elevator that drives an elevator car through a linear motor including a stator made of a magnetic material installed in a hoistway and a mover coupled to an elevator car in a coiled form, parallel to the stator A braking rail installed in the hoistway to be located on one side or both sides of the stator in one direction; It is arranged to be located on one side or both sides of the stator and is coupled to the elevator car so as to be movable away from or adjacent to the stator, and the coil is wound on one side so as to generate a suction force due to electromagnetic force between the stator. Braking module; An elastic member that applies elastic force to the braking module in a direction away from the stator so that the braking module makes frictional contact with the braking rail; And a DC power supply that operates to supply and cut off DC power to the coil of the braking module, and when DC power is supplied to the coil of the braking module through the DC power supply, occurs between the stator. When the braking module is guided toward the stator so that the braking module is separated from the braking rail by electromagnetic suction force, the brake operation is released, and when the DC power supply is cut off through the DC power supply, the coil of the braking module is cut off. It provides a brake device of a linear motor-type elevator, characterized in that the brake module is in frictional contact with the braking rail by an elastic force to perform a brake operation.

At this time, the braking module is fixedly coupled to the elevator car through a separate fixing bracket, and the braking module is restricted to the stator when the electromagnetic suction force occurs because the moving distance in the direction close to the stator is limited by the fixing bracket. It can be kept spaced apart.

In addition, the braking module is disposed opposite to one surface of the stator and the braking mover on which the coil is wound on one side; A main body combined with the brake mover and integrally moved; A guide rod protrudingly formed on one side of the main body and integrally moving with the main body and penetrating the fixing bracket; And a brake pad coupled to an end of the guide rod so as to be in frictional contact with the braking rail, and the elastic member may be mounted to elastically press the guide rod toward the braking rail side.

In addition, a locking portion protrudes from the outer circumferential surface of the guide rod, and one end of the elastic member may be supported by the locking portion and the other end may be supported by the fixing bracket.

In addition, a stopper rod protrudingly formed to penetrate the fixing bracket is mounted on one side of the main body, and the outer circumferential surface of the stopper rod is configured to limit a moving distance in a direction close to the stator of the braking module. The stopper part engaged with the fixing bracket may be protruded.

In addition, the braking rail may be installed on the hoistway and applied as a guide rail for guiding the traveling path of the elevator car.

According to the present invention, by constructing a braking module that can move by the electromagnetic suction force generated between the stator, the braking module by the electromagnetic suction force by the braking mover where the coil of the braking module is wound and the elastic force of the elastic member It is possible to operate, and through this, there is an effect of generating a braking force by an elastic force in a power-off state for the braking module to exhibit stable braking performance.

In addition, by generating or releasing electromagnetic suction force by supplying and blocking DC power to the coil of the brake mover through a separate DC power supply, the operation of the braking module can be controlled, thereby simply supplying DC power. Since the braking force can be generated or released through the supply and interruption of DC power through the unit, the structure is simple and the control operation is simple, so that the system configuration and manufacturing can be easily performed.

1 is a perspective view conceptually showing the configuration of a linear motor elevator according to an embodiment of the present invention,
Figure 2 is a perspective view conceptually showing the configuration of a brake device of a linear motor elevator according to an embodiment of the present invention,
3 is a plan view conceptually showing the configuration of a brake device of a linear motor type elevator according to an embodiment of the present invention,
4 is an exploded perspective view showing an exploded configuration of a brake device of a linear motor elevator according to an embodiment of the present invention,
5 and 6 is an operational state diagram conceptually showing the operating state of the brake device of the linear motor elevator according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, when adding reference numerals to the components of each drawing, it should be noted that the same components have the same reference numerals as possible even though they are displayed on different drawings. In addition, in describing the present invention, when it is determined that detailed descriptions of related well-known configurations or functions may obscure the subject matter of the present invention, detailed descriptions thereof will be omitted.

1 is a perspective view conceptually showing the configuration of a linear motor elevator according to an embodiment of the present invention.

The linear motor-type elevator according to an embodiment of the present invention includes a stator 100 installed in a hoistway and a mover 200 coupled to the elevator car 10 to be located on both sides of the stator 100 as shown in FIG. 1. It is a method driven by a linear motor comprising a.

The stator 100 is installed long in the vertical direction along the hoistway, and the mover 200 is installed over a certain section in the vertical direction on one side of the elevator car 10 and arranged to be positioned to be opposite to both sides of the stator 100 do. The elevator car 10 is provided with a mover support member 210 so as to support the mover 200 and fix its position, and the mover 200 is coupled to the mover support member 210 and spaced apart from the stator 100 They are spaced apart. The thrust is generated by the electromagnetic force generated between the stator 100 and the mover 200 to drive the elevator car 10 up and down. At this time, the stator 100 is formed of a magnetic material, and the mover 200 is formed in a form in which a coil capable of receiving power is wound.

In addition, a guide rail 400 may be installed on the hoistway to guide the driving path of the elevator car 10, and the guide roller 11 guided by rolling contact with the guide rail 400 may be installed on the elevator car 10. Can be mounted.

2 is a perspective view conceptually showing a configuration of a brake device of a linear motor elevator according to an embodiment of the present invention, and FIG. 3 is a conceptual view illustrating a configuration of a brake device of a linear motor elevator according to an embodiment of the present invention. 4 is an exploded perspective view showing an exploded configuration of a brake device of a linear motor elevator according to an embodiment of the present invention, and FIGS. 5 and 6 are linear motors according to an embodiment of the present invention. It is an operational state diagram conceptually showing the operating state of the brake device of the elevator system.

The brake device according to an embodiment of the present invention may include a braking rail 300, a braking module 500, an elastic member 600, and a DC power supply.

The braking rail 300 is installed on the hoistway, and is installed to be spaced apart on one side or both sides of the stator 100 in a direction parallel to the stator 100. The braking rail 300 is a configuration for generating a braking force through frictional contact of the braking module 500 to be described later, and guide rails 400 for guiding the driving path of the elevator car 10 as shown in FIGS. 2 and 3. ) Can be installed separately. However, unlike this, it may be installed in combination with the guide rail 400. That is, the guide rail 400 and the braking rail 300 are not separately installed, but only one rail is installed to function as the guide rail 400 during normal driving, and the braking rail 300 functions during braking. You can also let it.

The braking module 500 is coupled to the elevator car 10 to be located on one side or both sides of the stator 100, moving in a direction away from or adjacent to the stator 100 in a direction perpendicular to the longitudinal direction of the stator 100. It is configured to be possible. At this time, the coil 511 is wound on one side so that a suction force due to electromagnetic force can be generated between the stator 100. The braking module 500 may move in a direction away from the stator 100 to generate braking force in a frictional contact with the braking rail 300.

The elastic member 600 is configured to apply elastic force to the braking module 500 in a direction away from the stator 100 so that the braking module 500 makes frictional contact with the braking rail 300.

Although the DC power supply unit (not shown) is not shown, it operates to supply and block DC power to the coil of the braking module 500, and may be mounted on one side of the elevator car 10.

When DC power is supplied to the coil 511 of the braking module 500 through the DC power supply, the braking module 500 is separated from the braking rail 300 by electromagnetic suction force generated between the stator 100. When possible, the brake operation is released to the stator 100 side, and when the DC power supply is cut off to the coil of the braking module 500 through the DC power supply, the braking module 500 is driven by the elastic force of the elastic member 600. The brake operation is performed by frictional contact with the brake rail 300.

At this time, the braking module 500 is coupled and fixed to the elevator car 10 through a separate fixing bracket 700, the braking module 500 in the direction close to the stator 100 by the fixing bracket 700 When the movement distance is limited and the electromagnetic suction force occurs, the stator 100 is maintained at a predetermined distance (d) apart. Therefore, even if the braking module 500 moves closer to the stator 100 side by electromagnetic suction force, the contact between the braking module 500 and the stator 100 does not occur, and thus does not act as a resistance when the elevator car 10 runs. Does not.

Next, looking at the configuration of the braking module 500 in more detail, the braking module 500 is disposed opposite to one surface of the stator 100, and the braking mover 510 on which the coil 511 is wound on one side. , The main body 520 is integrally moved with the braking mover 510 coupled to one side, and protrudingly formed on the other side of the main body 520 to move integrally with the main body 520 to fix the bracket ( It may be configured to include a guide rod 530 penetrating 700, and a brake pad 540 coupled to the end of the guide rod 530 so as to be in frictional contact with the braking rail 300. The brake pad 540 includes a pad support 541 coupled to an end of the guide rod 530 and a friction pad 542 attached to one surface of the pad support 541 and in frictional contact with the braking rail 300. Can be configured.

At this time, the elastic member 600 is mounted to elastically press the guide rod 530 toward the braking rail 300, more specifically, the locking portion 531 is formed protruding on the outer circumferential surface of the guide rod 530, elastic The member 600 is mounted such that one end is supported by the engaging portion 531 and the other end is supported by the fixing bracket 700, the braking mover 510, the main body 520, the guide rod 530 and the brake All pads 540 may be configured to press toward the braking rail 300.

On the other hand, one side of the main body 520 is equipped with a stopper rod 550 protrudingly formed to penetrate the fixing bracket 700, and on the outer circumferential surface of the stopper rod 551 to the stator 100 of the braking module 500. The stopper part 551 engaged with the fixing bracket 700 may be formed to protrude to limit the moving distance in the adjacent direction.

According to this configuration, while the power is supplied to the linear motor and the elevator car 10 is normally operated, DC power is supplied to the coil 511 of the braking module 500 through the DC power supply, and in this case, illustrated in FIG. 5. Main body that moves integrally with the braking mover 510 and the braking mover 510 by generating electromagnetic suction force between the braking mover 510 and the stator 100 where the coil 511 is wound as shown 520, since the guide rod 530 and the brake pad 540 resist the elastic force of the elastic member 600 and move toward the stator 100, the brake pad 540 and the brake rail 300 do not contact frictionally No braking force is generated.

When it is desired to stop the operation of the elevator car, the DC power supply to the coil 511 of the braking module 500 is blocked through the DC power supply along with the power supply to the linear motor being cut off. In this case, the coil 511 ), Since the electromagnetic suction force between the braking mover 510 and the stator 100 is dissipated, as shown in FIG. 6, the braking mover 510, the main body by the elastic force of the elastic member 600 (520), the guide rod 530 and the brake pad 540 is elastically moved toward the braking rail 300, the brake pad 540 is in frictional contact with the braking rail 300 and generates braking force.

Therefore, the brake device according to an embodiment of the present invention can generate or release the braking force simply by supplying and shutting off DC power through the DC power supply, so that the structure is simple and the control operation is simple, thereby constituting the system. And production can be easily performed.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the claims below, and all technical spirits within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

100: stator
200: mover
300: brake rail
400: guide rail
500: braking module
510: Brake mover 520: Main body
530: guide rod 540: brake pads
550: stopper rod 551: stopper portion
600: elastic member
700: fixing bracket

Claims (6)

delete delete A brake device of a linear motor type elevator that drives an elevator car through a linear motor including a stator made of a magnetic material installed in a hoistway and a mover coupled to an elevator car in a coiled form,
A braking rail installed in the hoistway to be located on one side or both sides of the stator in a direction parallel to the stator;
It is arranged to be located on one side or both sides of the stator and is coupled to the elevator car so as to be movable away from or adjacent to the stator, and the coil is wound on one side so as to generate a suction force due to electromagnetic force between the stator. Braking module;
An elastic member that applies elastic force to the braking module in a direction away from the stator so that the braking module makes frictional contact with the braking rail; And
DC power supply unit that operates to supply and cut off DC power to the coil of the braking module
Including, when the DC power is supplied to the coil of the braking module through the DC power supply, guided to the stator side so that the braking module is spaced from the braking rail by electromagnetic suction force generated between the stator When the brake operation is released and the DC power supply is cut off to the coil of the braking module through the DC power supply unit, the braking module is brought into frictional contact with the braking rail by the elastic force of the elastic member, so that the brake operation is performed. ,
The braking module is coupled and fixed to the elevator car through a separate fixing bracket,
The braking module is maintained in a state spaced apart from the stator when the electromagnetic suction force is generated because the moving distance in the direction close to the stator is limited by the fixing bracket,
The braking module
A braking mover disposed opposite to one side of the stator and winding the coil on one side;
A main body combined with the brake mover and integrally moved;
A guide rod protrudingly formed on one side of the main body and integrally moving with the main body and penetrating the fixing bracket; And
Brake pads coupled to the ends of the guide rods in frictional contact with the braking rails
Including, the elastic member is a brake device of a linear motor elevator, characterized in that mounted to elastically press the guide rod toward the braking rail.
The method of claim 3,
On the outer circumferential surface of the guide rod, a locking portion is formed to protrude,
The elastic member is a brake device of a linear motor elevator, characterized in that one end is supported by the engaging portion and the other end is supported by the fixing bracket.
The method of claim 3,
A stopper rod is formed on one side of the main body to protrude to penetrate the fixing bracket,
A brake device of a linear motor elevator, characterized in that a stopper part engaged with the fixing bracket is formed to protrude on an outer circumferential surface of the stopper rod so as to limit a moving distance in a direction close to the stator of the braking module.
The method according to any one of claims 3 to 5,
The brake rail is installed in the hoistway, the brake device of a linear motor elevator, characterized in that applied as a guide rail for guiding the path of the elevator car.

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