CN201626746U

CN201626746U - Anti-falling device for over-speed car with rope in vertical shaft hoisting cage

Info

Publication number: CN201626746U
Application number: CN2009202820724U
Authority: CN
Inventors: 周茂太; 李旭; 王建廷; 陈宝申; 孟光春; 彭智
Original assignee: 泰安联谊矿山电器科技有限公司
Priority date: 2009-11-25
Filing date: 2009-11-25
Publication date: 2010-11-10

Abstract

The utility model discloses an anti-falling device for an over-speed car with a rope in a vertical shaft hoisting cage, comprising a friction wheel, a speed measuring sensor, a generator, a storage battery and a main control case arranged at the top of the cage, also comprising a mechanism case, a spring tripping device and a cage brake apparatus arranged in the cage, wherein the speed measuring sensor transfers the measured speed signal to a PLC controller which controls an electromagnet for generating electricity; and the spring tripping device drives the cage brake apparatus to brake the cage after tripping. The utility model has the characteristics of simple structure, low production cost, convenient installation and use, sensitive and reliable control and good braking.

Description

The vertical shaft hoisting cage band rope sport car anti-fall device of overrunning

Technical field

The utility model relates to a kind of cage band rope that prevents and weighs down the brake equipment of irritating.

Background technology

It is the great serious accident that exists in the safety of coal mines that the cage band rope that occurs in the colliery weighs down the filling accident, it causes owing to winch breaks down, in order to stop the generation of this type of accident, guarantee the safety of property and life, must monitor the cage running velocity, when off-rating and lasting ascendant trend, must be with the cage snap catch that goes at express speed, anti-falling stop is irritated.

Summary of the invention

The purpose of this utility model just provides a kind of cage anti-fall device, can carry out snap catch to the cage that surpasses setting speed, and for realizing this purpose, technical solution adopted in the utility model is:

This device comprises the friction wheel of being located at the cage top, tachogenerator, electrical generator, storage battery, master control cabinet and be located at cage in-to-in mechanism case, spring tripping device and cage brake equipment, friction wheel is near cage guide rope and connect electrical generator, electrical generator connects storage battery, storage battery connects the master control cabinet, be provided with PLC treater and connected hoist house alarm transmission device in the master control cabinet, tachogenerator connects the PLC treater, mechanism case is fixed on the top in the cage, the spring tripping device comprises the electromagnet of being located in the mechanism case, gear, tooth bar and ratchet and be socketed in retarding spring on the mechanism case, the cage brake equipment comprise connecting panel and with its pivotally attached scotch, be fixed with the brake shoe that passes cage guide rope on the sidewall of cage, electromagnet connects PLC treater and close ratchet, gear can be realized rotating up and down and pinion rack, the front end of ratchet is stuck in the teeth groove of gear, the diapire and the gear that pass mechanism case on the connecting panel are hinged, scotch passes the sidewall of cage and its front end near the mouth of pipe of brake shoe, can realize that the retarding spring that stretches is connected between the roof and connecting panel of cage.

This device can be monitored in real time to the running velocity that promotes the final terminal cage, when tachogenerator records more than 15% and during lasting ascendant trend of cage running velocity off-rating, by PLC controller controlling spring tripping device, and then driving the cage brake equipment with the cage snap catch that goes at express speed, anti-falling stop is irritated.

Adopt this device can stop to cause the band rope to weigh down the generation of the serious accident of irritating because winch breaks down, guarantee the safety of property and life, the utlity model has simple in structure, productive costs is low, sensitive reliable, the characteristics that braking ability is good of easy to install, control.

Description of drawings

Fig. 1 is a control circuit block diagram of the present utility model;

Fig. 2 is positioned at the structural representation of the outer part of cage for the utility model;

Fig. 3 is positioned at the structural representation of cage part for the utility model;

Fig. 4 is positioned at the structural representation of mechanism case part for the utility model.

The specific embodiment

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

As shown in Figure 1, storage battery is connected the PLC controller with tachogenerator, the cage speed signal that is recorded by tachogenerator is sent to the PLC controller, storage battery provides 12V direct supply for the PLC controller, the PLC controller connects hoist house alarm transmission device and electromagnet, the output control signal is given hoist house alarm transmission device, controlling its emission wireless signal gives hoist house interior warning receiving device, the electromagnet of PLC controller control simultaneously gets, electromagnet connects the spring tripping device, the spring tripping device connects the cage brake equipment, and electromagnet is threaded off the spring tripping device, and then the cage brake equipment is braked cage.

As shown in Figure 2, friction wheel 2, tachogenerator 3, electrical generator 4, storage battery 5, master control cabinet 6 are located at the top of cage 1 respectively, cage guide rope 8 is a steel rope, friction wheel 2 is near cage guide rope 8 and connect electrical generator 4, the wheel rim of friction wheel 2 is close to cage guide rope 8 and is rolled, produce friction and drive electrical generator 4 generatings, the electric energy input storage battery 5 that electrical generator 4 produces stores, and uses for PLC treater in the master control cabinet 6 and hoist house alarm transmission device.The wheel limit of friction wheel 2 is equipped with magnet steel 17 at the same intervals place, tachogenerator 3 is fixed on the support of friction wheel 2, tachogenerator 3 detects the velocity of rotation of magnet steel 17 and passes to the PLC treater and carries out computing, the actual speed of cage will be drawn, compare with command speed, judgement should be controlled or not.Be chosen in the place fixed installation simulation overspeed test button of cage 1 below handled easily, be used for detecting the sensitive fiduciary level of control system and dropout, brake equipment.

As shown in Figure 3 and Figure 4, mechanism case 7 is fixed in the top in the cage 1, the brake shoe 16 that passes cage guide rope 8 is fixed on the sidewall of cage 1, electromagnet 9 is installed in the mechanism case 7, gear 10, tooth bar 11 and ratchet 12, electromagnet 9 is electrically connected PLC treater and close ratchet 12, tooth bar 11 engaging gears 10, the wheel shaft of gear 10 is stuck in can be realized in the chute rotating up and down, the front end of ratchet 12 is stuck in the teeth groove of gear 10, it is hinged that the central rotating shaft of the diapire of mechanism case 7 and gear 10 is passed in connecting panel 14 upper ends, the hinged scotch 15 in connecting panel 14 lower ends, scotch 15 passes the sidewall of cage 1 and its front end mouth of pipe near brake shoe 16, and the retarding spring 13 that is enclosed within on the mechanism case 7 is connected between the roof and connecting panel 14 of cage 1.

The specified running velocity of setting cage 1 is 2m/s, because certain fault appears in winch, cylinder loses torsional forces and causes cage 1 band rope to weigh down filling, hoistman is subtle in the time of incipient, cage 1 acceleration due to gravity runs faster and faster, after surpassing 2.3m, the speed of cage 1 also continuing acceleration, cage 1 get out of hand is described, at this time judge hypervelocity through the PLC controller, send control signal, electromagnet 9, attract ratchet 12, gear 10 begins to rotate along tooth bar 11 under the tension force of retarding spring 13, and connecting panel 14 moves down simultaneously, the front end that drives scotch 15 is filled in the mouth of pipe of brake shoe 16 and is clamped cage guide rope 8, and then makes cage 1 emergency braking.Utilize when realizing cage 1 braking and send a special sound and light signal to hoist house by hoist house alarm transmission device wireless transmission method, parkings of cutting off the power supply of notice hoistman carried winch slowly when use behind the trouble removal and can normally be promoted after with the cage braking reset.The serious accident of irritating, the life security of having saved national wealth and miner from damage have been avoided weighing down through this process.

Claims

1. vertical shaft hoisting cage band rope sport car anti-fall device of overrunning, comprise the friction wheel (2) of being located at cage (1) top, tachogenerator (3), electrical generator (4), storage battery (5), master control cabinet (6) and be located at cage (1) in-to-in mechanism case (7), spring tripping device and cage brake equipment, it is characterized in that: friction wheel (2) is near cage guide rope (8) and connect electrical generator (4), electrical generator (4) connects storage battery (5), storage battery (5) connects master control cabinet (6), be provided with PLC treater and connected hoist house alarm transmission device in the master control cabinet (6), tachogenerator (3) connects the PLC treater, mechanism case (7) is fixed on the top in the cage (1), the spring tripping device comprises the electromagnet of being located in the mechanism case (7) (9), gear (10), tooth bar (11) and ratchet (12) and be socketed in retarding spring (13) on the mechanism case (7), the cage brake equipment comprise connecting panel (14) and with its pivotally attached scotch (15), be fixed with the brake shoe (16) that passes cage guide rope (8) on the sidewall of cage (1), electromagnet (9) connects PLC treater and close ratchet (12), gear (10) can be realized rotating up and down and pinion rack (11), the front end of ratchet (12) is stuck in the teeth groove of gear (10), the diapire and the gear (10) that pass mechanism case (7) on the connecting panel (14) are hinged, scotch (15) passes the sidewall of cage (1) and its front end near the mouth of pipe of brake shoe (16), can realize that the retarding spring (13) that stretches is connected between the roof and connecting panel (14) of cage (1).