CN2058429U

CN2058429U - Photoelectric automatic controller for prevention of running car in mine

Info

Publication number: CN2058429U
Application number: CN 89220834
Authority: CN
Inventors: 高顺义; 杨贵安
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-12-07
Filing date: 1989-12-07
Publication date: 1990-06-20

Abstract

The utility model discloses an automatic safety controller for prevention of rope-broken running car in mine, which is used for the operation of the underground mining rope hoisting winch in mine. The running car barrier net of the original technology has inaccurate function, and the number and the species of the hoisting mine cars are limited, so the utility model adopts a non-contact type photoelectric relay and a time relay. The utility model has the advantages of high sensitivity, exact action, strong reliability and mine transport accident reduction.

Description

Photoelectric automatic controller for prevention of running car in mine

The invention belongs to down-hole, mine rope hoisting winch is in operation to preventing the full automatic control device of disconnected rope sport car.

At present, down-hole, mine catcher commonly used has two kinds normally closed and open in usual.

Normally closed type catcher and hoisting gear motor linkage, when mine car runs to the catcher place, depth indicator touches travel switch, and closed travel switch contact gives for the traction electric machine of catcher, under the traction of this motor, vehilce-blocking door is opened, and allows mine car pass through, after mine car passes through, vehilce-blocking door is opened, and prepares to block sport car at any time.

Catcher open in usual, by the inertia velometer, haulage cable and vehilce-blocking door constitute, when running impact inertia machinery velometer with normal speed when keeping off a car, this velometer is swung a less angle or is called less stroke, it does not touch a mechanism, when mine car hypervelocity bump, bigger angle of velometer swing, touched a mechanism, made vehilce-blocking door fall to blocking sport car.

There is following shortcoming in above-mentioned two kinds of catchers:

1, the mechanical measuring principle that catcher open in usual adopted, needed mine car speed of the pushing-off the wagons of being caught and impact do not have accurate data, move inaccurate.

2, above-mentioned two kinds of catchers all are subjected to promoting the restriction of the value volume and range of product of mine car, can not be widely used in various transportations place.

The objective of the invention is in order to overcome above shortcoming of the prior art, designed the contactless anti-sport car automaton of photoelectricity of a cover.The value volume and range of product that is not promoted mine car limits, and adapts to the safe auto-control device that prevents disconnected rope sport car in various transportations place.Thereby for the down-hole, mine developed a kind of highly sensitive, action accurately, good reliability, reduce the product of mine shipping accident.

See that Fig. 1 the present invention solves by following measure.

It is characterized in that photoelectric relay is with the time relay assembly, when mine car is invested the light of photoelectric relay by first speed measuring point and multitudinous retaining incandescent lamp, photoelectric relay drives the time relay in preset time, subordinate's circuit is connected to circuit between executive component, when mine car passed through second speed measuring point, photoelectric relay was connected through the circuit that clocks of first speed measuring point power supply to the circuit of executive component.Mine car normally moves, and is to pass through second speed measuring point outside preset time, and circuit disconnects, and executive component is failure to actuate.

When mine car group (1) overspeed; Be to pass through second speed measuring point in preset time, entire circuit has electricity, and executive component is worked at once, the pushing-off the wagons of being caught.

If use 1.6 meters winch operations, speed per hour is 2 meter per seconds, a given distance, promptly moving between first speed measuring point and second speed measuring point is 8 meters, mine car should normally pass through two speed measuring points in 4 seconds so, if the mine car operation is broken down, in 3 seconds, pass through two speed measuring points, the mine car overspeed, the circuit executive component is connected the charged work of electromagnet that makes, extract the block bearing pin, allow the mine car pushing-off the wagons of being caught.

Solution of the present invention can be as follows further combined with description of drawings:

Fig. 1 functional-block diagram of the present invention.

Fig. 2 fundamental diagram of the present invention.

See that Fig. 1 works as that mine car group (1) is travelled with normal speed and when blocking the first speed measuring point incandescent lamp BD1 and investing the light of photoelectric relay GJ1, the GJ1 action, time relay sj has electricity, when the incandescent lamp BD2 that moves and block second speed measuring point when mine car group (1) invests the light of photoelectric relay GJ2, the GJ2 action, when if the mine car group is moved with normal speed, the mine car group during by second speed measuring point SJ disconnect, mine car still normally travels, when the overspeed of mine car group, the SJ circuit is still being connected, to making electromagnet DT work, pull out block bearing pin (original technology) and make mine car (1) fall into pushing-off the wagons net (2), guaranteed the safety of mine car.

(seeing Fig. 2) mine car group (1) is when normally moving;

When mine car group (1) is passed through first measuring point of incandescent lamp BD1 and photoelectric relay GJ1 formation, G J1 action, closed intermediate relay ZJ 3, give self-insurance through the ZJ3-2 normally opened contact simultaneously, power to time relay sj through the ZJ3-1 normally opened contact again. Because the mine car speed of service is normal, when mine car passes through second speed measuring point of incandescent lamp BD2 and GJ2 formation, because the Time Delay Opening contact SJ-1 of the time relay has opened, intermediate relay ZJ 2 is failure to actuate, so the mine car group is normally moved.

During mine car group (1) overspeed;

Be out of order if the mine car group is in service, too fast and the mine car of the speed of a motor vehicle is during by second speed measuring point, the GJ2 action, the GJ2-1 closure, this moment, Time Delay Opening contact SJ-1 did not open yet, so ZJ2 action, make magnetic starter Qc closure through its contact ZJ2-1, Qc-1 is the self holding contact of Qc, through contact Qc-3, Qc-4 closure, electromagnet DT work, thus the block bearing pin opened, and mine car is blocked by net. The Qc-2 closure makes alarm bell JL and indicator lamp JD send sound simultaneously, light is reported to the police.

Setting up of intermediate relay ZJ 3 is the caused misoperation of light leak that causes for the distance that prevents between the every joint of the mine car compartment.

If incandescent lamp BD1 and BD2 damage, intermediate relay ZJ 1 work of connecting in the circuit, thereby cut off magnetic starter Qc power supply by ZJ1-1, the misoperation that prevents electro-optical system makes electric bell JL and indicator lamp J D send sound, light warning simultaneously simultaneously by ZJ1-2 work.After fault is got rid of, press the AN button, make the ZJ3 outage, set back, for moving once more, mine car prepares.

This device also applicable to the vehicle overspeed alarming on multiple section in urban traffic accident or traffic main artery, can reduce the urban traffic accident.

Characteristics of the present invention are:

(1) because the light-operated speed measuring device of a cover that adopts the photoelectric relay and the time relay etc. to constitute, thus action accurately and reliably, highly sensitive.

(2) this device is installed warning circuit, is convenient to on-call maintenance, significantly reduces the accident rate of mine transportation.

(3) low being convenient to of cost promoted.

Embodiment:

Photoelectric relay is selected GJ1, GJ2-36V for use.

Time relay sj-380V.

Magnetic force is changed device Qc83-60.

Control transformer KB-100 36V/380V.

Claims

1. a mining photoelectricity is prevented the sport car automaton, it is characterized in that on the track of mine car operation, by certain distance two light-operated speed measuring devices are installed, this device is connected with magnetic starter QC by time relay sj, connects the unlatching of electromagnet DT control pushing-off the wagons network sale axle then through the contact.

2. light-operated speed measuring device according to claim 1 is characterized in that this device is made up of two incandescent lamp BD1, BD2 and two photoelectric relay GJ1, GJ2.

3. according to claim 1,2 described light-operated speed measuring devices, it is characterized in that installing the distance that prevents between every joint mine car on the circuit of this device causes light leak to bring the intermediate relay ZJ 3 of misoperation.

4. according to claim 1,2,3 described light-operated speed measuring devices, it is characterized in that installation prevents that incandescent lamp from damaging the intermediate relay ZJ 1 that causes misoperation in this device circuit.