SU867835A1 - Device for measuring the value of run-on of hoistable vessel onto rope at braking of hoist inclined workings - Google Patents

Description

I

The invention relates to lifting installations, namely, devices registering rope lapping, and can advantageously be used to determine the amount of flow of the lifting vessel to the rope. with safety braking in inclined workings.

The closest to the proposed technical essence and the achieved result is a device for measuring the amount of incursion of a lifting vessel on the rope when braking a lifting installation in inclined workings, containing a flexible element attached at one end to the lifting vessel through a mechanical compensator and associated with a pulley of a recording device Q one.

A disadvantage of the known device is the impossibility of continuously measuring and storing the magnitude of the incursion of the lifting vessel rope during braking of the lifting installation. ,

The purpose of the invention is to show accuracy.

This goal is achieved by the fact that the flexible element is connected to the cable at its other end, the pulley and the recording device are mounted on the lifting vessel and are interconnected via a gear free-wheeling clutch consisting of driving and driven coupling halves.

ten

In addition, the recording device contains a ratchet wheel with studs, a counter, a writing mechanism and a tape mechanism with a receiving and feeding cassettes, and the ratchet box 15 is rigidly mounted on the driven coupling half with the possibility of the studs to interact with the counter, and the writing mechanism with the receiving and feeding cassettes tape mechanism,

20 while the receiving cassette is rigidly mounted on the driven coupling half.

FIG. I shows the proposed device, a general view, FIG. 2 shows a kinematic diagram of a recording device. The device contains a flexible element, for example, steel cable 1, attached through a mechanical compensator, for example rod 2, to vessel 3. The other end of cable 1 is attached by a clamp to the rope 4 at a distance of 3–7 m from the vessel. The cable I is connected to the pulley of the recording device 6 by means of a loop of friction. When the tight rope is 4, the spring 2 is normally stretched. The recording device 6 is attached to the vessel 3 by means of a fastener, for example, a clamp 7. The device 6 includes a shaft 8 mounted in the bearings of a rack 9. The pulley 5 is rigidly fixed on the shaft 8 on which the overrunning clutch is mounted, consisting of two coupling halves 10 and the slave 11, the coupling half 11 being freely mounted on the shaft 8. The ratchet wheel 12 is rigidly fixed to the coupling half 11. The dog 13 of the wheel 12 is fixed on the rack 14. The ratchet wheel 12 is equipped with studs 15 interacting with the counter 16, the price of one unit is which is determined depending on the diameter of the winding of the pulley 5 and the number of id pins, the ratchet wheel. On the coupling half 11, the receiving cassettes 17 of the tape-drawing mechanism are rigidly fixed. The half of that 11 is spring-loaded from the end by a spring 18. The feed cartridge of tape MexaHjisMa 19 is freely mounted on a roller 20 mounted on a rack 14 and spring-loaded spring 21.. To a rack 14 by means of a hinge 22 when the bar 23 is attached, having the shape of a fork covering the roller 20, and interacting with the cassette 19. A pusher 24 is fastened to the middle part of the bar 23 at one end with the pusher 24, the other end of which is in the initial position at a distance of 1-2 mm from the wheel 12. The said bar 23 and the pusher 24 are intended to synchronously move the feed 19 and the receiver 17 tape cassettes for reciprocating coupling half 11, wheel 12, cash register 17, caused by the reverse movement of the pulley and slipping of the overrunning clutch teeth. A writing mechanism 25, such as a graphite rod, is fixed to the stand 14 for drawing curves on the tape 26 of the tape drive mechanism. The cassette 19 is provided with 4 handles 27 for re-striking the tape 26. The device operates as follows. . To measure the amount of incursion of the vessel onto the rope while braking the lift installation in inclined workings, the device is fixed to vessel 3. The spring 2 is normally stretched. When braking a lift installation, it is possible that a rope 4 of the vessel 3 rushes in, as a result of which the cable 1 sags. The latter chooses a mechanical compensator, made in the form of a spring 2. At this, the pulley 5 starts rotating, which rotates the wheel 12 through the overrunning clutch. The latter, through the studs 15, acts on the counter 16, which records the amount of vessel running over the rope 26 magnitude run-up in the form of a straight line. When the vessel 3 moves backward, after the running in, the cable 4 is picked up, and the cable 1, which starts to rotate the pulley 5 in the opposite direction, is carried along by itself. In this case, the clutch 11 and the wheel I2 do not rotate. They move reciprocally together with the cassette 17 along the shaft 8. This embodiment of the recording instrument is intended to accurately determine the magnitude of each incident. no matter how many times a vessel has accumulated on the rope of the vessel for one torus auger, i.e. regardless of the number of periods of oscillation of the elastic system, the rope-climbing vessel. When braking an elevator installation that pushes the vessel upwards, a vessel may rush onto the rope, at the end of which an oscillatory process occurs in the rope-lifting system - the vessel. To distinguish between periods and determine the amplitudes of each oscillation, a recording device is used. The mechanism 25 marks on the tape 26 a straight longitudinal line when the vessel 4 runs into the rope 3. At the time of the end of each period of oscillation, the belt 5 begins to rotate in the opposite direction, the wheel 12 stops with the pawl 13 and moves with the cartridge 17 along the shaft 8. 19 moves synchronously with the cassette 17 by means of Planck 23 and the pusher 24. In this case, the mechanism 25 draws a straight transverse

line, fixing the end of the first period of oscillation and the beginning of the next, etc. To determine the amount of incursion of the vessel on the rope in linear units of measurement, the cable 1 is removed from the pulley 5 for each period, the pawl 13 is retracted and the tape 26 is casted to the cassette 19 by means of the handle 27, fixing the readings of the counter 16 between two adjacent transverse lines. By multiplying the difference between the readings of the counter 16 corresponding to the transverse marks on the tape and the price of one counter of the counter 16, the amount of incidence (oscillation amplitude) in linear units, for example in meters, is determined. The measurement error is equal to the price of one counter account.

Claims (2)

1. A device for measuring the magnitude of a hoisting vessel running onto a rope when braking a lifting device in inclined workings, comprising a flexible element attached at one end to the lifting vessel through a mechanical compensator and connected A hebee with a registering device pulley, characterized in that, in order to increase accuracy, the flexible element is connected to the cable at its other end, the pulley and the recording device are mounted on a lifting vessel and are interconnected via a gear free-wheeling clutch consisting of a driving and driven coupling half . 2. A device according to claim 1, characterized in that the registering device comprises a ratchet wheel with studs, a counter, a writing mechanism, and a tape mechanism with a receiving and feeding cassettes, the ratchet wheel being rigidly mounted on the driven coupling half with the possibility of the studs interacting with the counter , and the writing mechanism is with the receiving and feeding cassettes of the tape-carrying mechanism, while the receiving cassette is rigidly mounted on the driven coupling half. Sources of information taken into account in the examination 1. USSR author's certificate No. 523850, cl. B 66 B 5/12, 09.04.75 (prototype), / f i2 CZ FIG. g