KR20120031705A - Drive system for escalators - Google Patents

Abstract

The driving system of the escalator of the present invention relates to an escalator including a step and a handrail, and is coupled to a motor for generating a driving force, a first step driving unit for transmitting the generated driving force to the step, and the first step driving unit. And a first handrail driving unit for transmitting the driving force to the handrail, wherein the motor is directly coupled to the first step driving unit to transmit the driving force to the first step driving unit.

Description

Escalator Drive System {DRIVE SYSTEM FOR ESCALATORS}

The present invention relates to a novel escalator drive system.

The escalator that serves as a passenger transportation device is installed in department stores, subways, officetels, airports, etc., and is widely used as a device for conveniently moving passengers from one point to another. Escalators are typically used when there is a difference in height, or when connecting different floors and floors to eliminate the inconvenience of passengers using stairs. Recently, however, moving walks and the like installed in a horizontal state also move passengers in the same manner as escalators.

A typical escalator basically includes a drive unit for driving a step and a handrail. Usually, such a device includes a driver disposed in a machine room installed at the top of or adjacent to a truss and a driving system driven by the driver. It is included.

In this case, the driver includes an electric motor, a reduction gear, and a brake device, and the driving system driven by the driver includes a step driving device for driving a step, a hand rail driving device for driving a hand rail, and a rotational force of the driving step driver or hand rail. It includes a chain device for transmitting to the drive.

As described above, in the case of a conventional escalator driving system, the driving force is transmitted through several steps, and thus the mechanical efficiency is lowered, and the space of the upper machine room of the escalator has to be relatively large for mounting the driver and other parts. Accordingly, there may be environmental pollution problems such as regular oil supply for maintenance of the machine room.

Some embodiments of the present invention are to solve the problems of the prior art, and to provide an escalator drive system that can be implemented in a compact drive system of the escalator through a configuration that directly connects the motor and the step driving device. do.

As a technical means for achieving the above-described technical problem, the drive system of the escalator according to the first aspect of the present invention relates to an escalator comprising a step and a handrail, the motor for generating a drive force, the generated drive force And a first hand rail driver coupled to the first step driver and a first step driver transmitting the driving force to the handrail, wherein the motor is directly coupled to the first step driver. The driving force is transmitted to the first step driver.

In addition, the driving system of the escalator according to the second aspect of the present invention relates to an escalator including a step and a handrail, the first motor and the second motor for generating a driving force, the driving force generated in the first motor A first hand rail for transmitting a driving force to the handrail coupled to the first step driver, a second step driver for transmitting a driving force generated by the second motor to the step, the first step driver for transmitting to the step And a second handrail driving unit coupled to a driving unit and the second step driving unit to transfer the driving force to the handrail, wherein the first motor is directly coupled to the first step driving unit to transfer the driving force to the first step. The second motor is directly coupled to the second step driver, and the driving force is transmitted to the second step driver. It is.

According to the problem solving means of the present invention described above, it is possible to implement the drive system of the escalator with a minimum configuration. That is, by removing the chain device for transmitting the driving force generated from the motor to the step driving device, and directly connecting the motor and the step driving device, it is possible to minimize the driving force lost in the reducer and chain device. Accordingly, even if a motor of a smaller capacity than the conventional capacity is used, sufficient driving force can be transmitted. In addition, the size of the machine room can be greatly reduced by eliminating the reducer and the chain device. In addition, by removing the driving force transmission means, such as a chain device can minimize the oil lubrication, and can solve the problem of environmental pollution by oil leakage.

1 is a view for explaining the structure of a commonly used escalator.
2 is a view showing in more detail the drive system of a conventional escalator.
3 is a diagram illustrating an escalator driving system according to an exemplary embodiment of the present invention.
4 is a diagram illustrating an escalator driving system according to another exemplary embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is "connected" to another part, this includes not only "directly connected" but also "electrically connected" with another element in between. . In addition, when a part is said to "include" a certain component, which means that it may further include other components, except to exclude other components unless otherwise stated.

1 is a view for explaining the structure of a commonly used escalator.

The illustrated escalator can be largely divided into a hand rail 1 installed on both sides, a step 2 for carrying passengers, and a machine room 3 for driving the hand rail 1 and step 2.

In addition, the machine room 3 is composed of a motor 4, a reducer 5, and a drive chain 6, and as a drive unit, a drive sprocket 7, a drive terminal gear 8, a drive shaft 12, and a terminal rail ( 13), and the flow portion is composed of a step chain 10), a step 9, and the like.

When the motor 4 is driven, the escalator configured as described above is driven with power to the speed reducer 5 directly connected to the motor 4, and then driven with power from the speed reducer 5 to the drive chain 6. The sprocket 7 is driven, and the drive terminal gear 8 coupled to the coaxial line with the drive sprocket 7 drives the step chain 10 to which the step 9 is coupled, thereby driving the step 9. It moves up and down along the terminal gear 8 and the driven terminal gear 11.

2 is a view showing in more detail the drive system of a conventional escalator.

FIG. 2A is a view of the escalator driving system from the side, and FIG. 2B is a view of the escalator driving system from the top.

The drive system includes an electric motor 101, a speed reducer 102, a brake 103, a step drive 104, a handrail drive 105 and a chain device 106.

The driving force generated in the electric motor 101 is transmitted to the step driving device 104 through the speed reducer 102 and the chain device 106. Meanwhile, the step driving device 104 and the handrail driving device 105 may be directly connected to the step driving device 104 and the handrail driving device 105, which are driving force of the electric motor 101.

As described above, in the case of a typical escalator drive system, the driving force is transmitted through several steps, and thus the mechanical efficiency is reduced, and the space of the upper machine room of the escalator must be relatively large for mounting the driver and other parts. Accordingly, there may be environmental pollution problems such as regular oil supply for maintenance of the machine room.

3 is a diagram illustrating an escalator driving system according to an exemplary embodiment of the present invention.

(A) is a figure which shows the front of a drive system, (b) is the figure which shows the side of a drive system.

An escalator driving system according to an exemplary embodiment of the present invention includes a motor 210, a first step driver 220, a second step driver 222, a first handrail driver 242, and a second handrail driver 240. The first driving shaft 232, the second driving shaft 230, and the motor controller 250 are included.

The motor 210 is directly connected to the first step driver 220, so that the driving force of the motor 210 does not go through the conventional speed reducer or chain, but rather to the step driver 220, 222 or the handrail driver 240, 242. To be delivered directly.

At this time, preferably, the motor 210 uses a synchronous PM (Permanent Magnet) motor. This synchronous PM motor uses a permanent magnet and rotates by pulling with the electromagnetic force produced by the stator windings. In particular, since the permanent magnet is used, the holding torque is large even when it is not excited, and the step angle may be 1.8, 7.5, 15, 30, 34, and 90 degrees depending on the type of the permanent magnet. Synchronous PM motors do not require reduction gears, significantly reducing vibration and noise, improving ride comfort, eliminating the need for oil injection, eliminating environmental pollution due to leakage, and reducing maintenance costs. In addition, since the life is semi-permanent, the cost can be reduced.

The first step driver 220 is coupled to the first handrail driver 242 through the first drive shaft 232. In addition, the first handrail driver 242 is coupled with the second handrail driver 240, and the second hand rail driver 240 is coupled with the second step driver 222 through the second drive shaft 230. . In addition, the first handrail driver 242 and the second handrail driver 240 may be coupled to each other through a driving shaft (not shown).

Therefore, the driving force generated through the motor 210 may be directly transmitted to the step drivers 220 and 222 and the handrail drivers 240 and 242.

Meanwhile, the step drivers 220 and 222 and the hand rail drivers 240 and 242 are implemented with sprockets of appropriate sizes, and transmit driving force to the step or hand rail through a chain (not shown).

The motor controller 250 supplies a current having a predetermined magnitude to the motor 210 for driving or controlling the motor 210. The rotary encoder may further include a rotary encoder (not shown) configured to detect the rotation as a pulse according to the rotation of the motor 210, and the motor controller 250 may control the output of the rotary encoder with a reference input pulse. Can be. That is, the motor controller 250 is configured to up and down the output pulse based on the reference input pulse, and may further include an inverter for converting the output pulse into a voltage and supplying the output pulse to the motor 210.

4 is a diagram illustrating an escalator driving system according to another exemplary embodiment of the present invention.

According to another embodiment of the present invention, an escalator driving system includes a first motor 310, a second motor 312, a first step driver 320, a second step driver 322, and a first handrail driver 342. The second handrail driving unit 340 includes a first driving shaft 332 and a second driving shaft 330.

In this embodiment, a plurality of motors are directly connected to the step driving unit, respectively, to drive the step driving unit and the handrail driving unit.

The first motor 310 is directly connected to the first step driver 320, and the second motor 320 is directly connected to the second step driver 330. Thus, according to the configuration using two motors, it is possible to use a motor having a smaller capacity than the motor used in the first embodiment.

In this case, preferably, the first motor 310 and the second motor 312 use a synchronous permanent magnet (PM) motor, and details thereof are as described above.

The first step driver 320 is coupled to the first handrail driver 342 through the first drive shaft 332. In addition, the first handrail driver 342 is coupled to the second handrail driver 340. In addition, the second step driver 322 is coupled to the second handrail driver 340 through the second drive shaft 330. In addition, the first handrail driver 342 and the second handrail driver 340 may be coupled to each other through a driving shaft (not shown).

Therefore, the driving force generated through the first motor 310 may be directly transmitted to the first step driver 320 and the first handrail driver 342. In addition, the driving force generated through the second motor 312 may be directly transmitted to the second step driver 322 and the second handrail driver 340.

Meanwhile, the step drivers 320 and 322 and the hand rail drivers 340 and 342 are implemented with sprockets of appropriate sizes to transmit driving force to the step or hand rail through a chain (not shown).

The motor controller (not shown) supplies a current of a predetermined size by the user to the motors 310 and 312 for driving or controlling the motors 310 and 312. At this time, a current is supplied to each motor so as to transmit driving force in the same direction at the same timing.

The apparatus may further include a rotary encoder (not shown) configured to detect the rotation as a pulse according to the rotation of the motors 310 and 312, and the motor controller performs a control operation on the output of the rotary encoder as a reference input pulse. can do. That is, the motor controller may be configured to up or down the output pulse based on the reference input pulse, and may further include an inverter for converting the output pulse into a voltage and supplying the motor to the motors 310 and 312.

According to the configuration of the present invention as described above, it is possible to implement the drive system of the escalator with a minimum of parts. That is, by removing the chain device that transfers the driving force generated from the motor to the step driving device, by directly connecting the motor and the step driving device, it is possible to minimize the driving force lost in the reducer and the chain device. Accordingly, even if a motor of a smaller capacity than the conventional capacity is used, sufficient driving force can be transmitted. In addition, the size of the machine room can be greatly reduced by eliminating the reducer and the chain device. In addition, by removing the driving force transmission means, such as a chain device can minimize the oil lubrication, and can solve the problem of environmental pollution by oil leakage.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

210: motor
220, 222: step driving unit
230, 232: drive shaft
240, 242: handrail drive unit
250: motor control unit
310, 312: motor
320, 322: step driving unit
330, 332: drive shaft
340 and 342: hand rail drive unit

Claims (6)

In a drive system of an escalator comprising a step and a handrail,
Motor for generating driving force,
A first step driver which transmits the generated driving force to the step;
A first handrail driving unit coupled to the first step driving unit and transmitting the driving force to the handrail;
And the motor is directly coupled to the first step driver to transfer the driving force to the first step driver.
The method of claim 1,
A first drive shaft coupling the first step driver and the first handrail driver;
A second handrail driver coupled to the first handrail driver;
A second step driver which receives a driving force from the second handrail driver and transmits the driving force to the step;
And a second driving shaft coupling the second step driver and the second handrail driver.
The method of claim 1,
The motor is an synchronous permanent magnet motor.
In a drive system of an escalator comprising a step and a handrail,
A first motor and a second motor generating a driving force,
A first step driver for transmitting the driving force generated in the first motor to the step,
A second step driver which transfers the driving force generated in the second motor to the step;
A first handrail driver coupled to the first step driver to transfer the driving force to the handrail;
A second handrail driving unit coupled to the second step driving unit and transmitting the driving force to the handrail;
The first motor is directly coupled to the first step driver to transfer the driving force to the first step driver,
And the second motor is directly coupled to the second step driver to transfer the driving force to the second step driver.
The method of claim 4, wherein
A first drive shaft coupling the first step driver and the first handrail driver;
And a second driving shaft coupling the second step driver and the second handrail driver.
The method of claim 4, wherein
And the first motor and the second motor are synchronous permanent magnet motors.

Images