CN2436492Y

CN2436492Y - Energy-saving device for escalator

Info

Publication number: CN2436492Y
Application number: CN 00218459
Authority: CN
Inventors: 陈其明
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-07-18
Filing date: 2000-07-18
Publication date: 2001-06-27
Anticipated expiration: 2010-07-18

Abstract

The utility model provides an energy-saving device for an escalator, comprising a motor, a flywheel, a control box and a controller. The utility model is characterized in that arbitrary surface of the flywheel is provided with at least one yin-yang step which is aligned to a sensor which is fixed on a fixed frame; two power lines and a signal line of the sensor pass through the casing control box to be respectively connected with the two power lines and arbitrary a signal inputting line of the controller. The utility model has the advantages of simple structure, easy manufacture, the reduction of energy consumption and safety.

Description

A kind of energy saver of escalator

The utility model relates to a kind of electrical machine energy-saving device, relates more specifically to a kind of energy saver of escalator.

Present escalator, moving sidewalk, the operation scheme of its motor is unalterable, and motor is moved under little load, still presses rating horsepower output, and power consumption is big, and power factor is low, causes the significant wastage of electric energy.

The purpose of this utility model provides a kind of energy saver of escalator, utilize the characteristic of threephase asynchronous machine, the speed that is motor is subjected to the variation of load and produces micro-variation, change the operation scheme of motor by sensor control controller, make motor when little load, power consumption reduces, and reaches energy-conservation purpose.

The purpose of this utility model is achieved in that a kind of energy saver of escalator, comprise: motor, flywheel, control box, put a flywheel on motor coaxial, control box is built-in with controller, star running contactless switch, triangle running contactless switch, anti-, positive contactor, main switch, thermal protector; It is characterized in that: any one side of flywheel is provided with at least one negative and positive step, sensor alignment negative and positive step, and be fixed on the fixed mount two power leads and a signal wire (SW) of sensor, by the shell of control box, respectively with two power leads and any incoming signal wire joint of controller.

The utility model is simple in structure, makes easily, cuts down the consumption of energy, and is safe and reliable, realized energy-conservation about 30% target, can promote the use of on the escalator of any model, moving sidewalk.

Below in conjunction with drawings and Examples the utility model is further described:

Accompanying drawing is the utility model structural representation.

Among the figure:

1 motor, 2 flywheels, 3 negative and positive steps, 4 sensors

5 fixed mounts, 6 control boxs, 7 controllers, 8 stars running contactless switch

9 triangles running contact, 10 counter-rotating contactless switchs

11 positive contactor 12 main switches 13 thermal protectors

As shown in drawings: the utility model comprises: motor 1; flywheel 2; control box 3; put a flywheel 2 on motor 1 coaxial; control box 6 is built-in with controller 7; star running contactless switch 8; triangle running contactless switch 9; counter-rotating contactless switch 10; just transferring and touching 11; main switch 12; thermal protector 13; any one side of flywheel 2 is provided with at least one negative and positive step 3; sensor 4 is aimed at negative and positive step 3; and be fixed on the fixed mount 5; two power leads and a signal wire (SW) of sensor 4; by the shell of control box 6, respectively with two power leads and any incoming signal wire joint of controller 7.

The utility model is at first in the end rotating shaft with motor 1, the flywheel 2 of a coaxial rotation is installed, on motor 1 or other suitable position, put a fixed mount 5 again, fix a sensor 4 on it, and aim at negative and positive step 3, two power leads and a signal wire (SW) of sensor 4 are by the shell of control box 6, with two out-put supply wire joints on the controller 7, and be connected with any of some input signal cables of controller 7.

Energy-saving principle of the present utility model is such: the starting of motor divides two kinds of triangle and stars, but after the starting all is to move under the triangle mode, with the many of load or few irrelevant, motor high-power operation under triangle pattern all the time, so can not be energy-conservation, after inserting energy saver, motor is in operation when running into little load or zero load, its rotating speed is just higher, sensor is sent to controller input end in the control box with these velocity pulses by output line, after original impulse speed of setting of controller basis and successor's impulse speed compares, controller sends the instruction of control star running contactless switch operation, motor is carried out the star operation scheme, power consumption is reduced, save electric power, otherwise, motor moves under heavy load, its speed is slack-off, sensor is sent to the input end of controller with these velocity pulses, and controller sends control triangle operating instruction, makes motor can recover normal operation under high-power again, obviously, the operation of motor and load many or few directly can control its star or leg-of-mutton operation scheme, thereby reach energy-conservation purpose.

Claims

1, a kind of energy saver of escalator, comprise: motor, flywheel, control box, put a flywheel on motor coaxial, control box is built-in with controller, star running contactless switch, triangle running contactless switch, anti-, positive contactor, main switch, thermal protector; It is characterized in that: any one side of flywheel is provided with at least one negative and positive step, sensor alignment negative and positive step, and be fixed on the fixed mount two power leads and a signal wire (SW) of sensor, by the shell of control box, respectively with two power leads and any incoming signal wire joint of controller.