CN209778033U - First rope groove-disengaging protection device for friction type elevator - Google Patents

Abstract

The utility model relates to a friction type elevator head rope groove-releasing protection device, which comprises a rack and a laser correlation sensor, wherein the rack comprises two upright posts and an upper cross beam and a lower cross beam which are fixed between the two upright posts and are distributed in parallel from top to bottom, the upper cross beam is used for being arranged above a head rope to be detected, the lower cross beam is used for being arranged below the head rope to be detected, the upper cross beam and the lower cross beam are provided with chutes, the laser correlation sensor is detachably fixed on the upper cross beam and the lower cross beam through the chutes, the laser correlation sensor can adjust the installation position on the upper cross beam and the lower cross beam through the chutes, and when in use, the installation position of the laser correlation sensor corresponds to the position of the head rope to be detected, the utility model discloses a head rope groove-releasing protection device effectively improves the safety and the reliability of an elevator lifting system, avoids the damage of the head rope to the steel wire, the service life of the steel wire rope is prolonged.

Description

First rope groove-disengaging protection device for friction type elevator

Technical Field

the utility model relates to a friction type lifting machine technical field, concretely relates to first rope of friction type lifting machine protection device that takes off groove.

Background

In recent years, in the shaft hoisting of mine enterprises, multi-rope friction type hoists are increasingly used in the shaft hoisting due to the advantages of good reliability, high safety, mature and reliable technology and the like, and become important equipment for mine production. With the application of the friction type hoisting machine with multiple ropes, a problem which is more and more concerned is the problem of groove disengagement of the hoisting head rope. That is, in the running process of the elevator, one or more first ropes are separated from the friction rope grooves normally used by the elevator and jump to the other standby rope groove.

The first rope of the multi-rope friction hoist gets motion power by the friction force with the friction wheel, and when the friction wheel (main roller) rotates, the first rope is driven to lift or lower the hoisting container. In the operation process, the tension on the four first ropes needs to be kept equal, otherwise, the safety factor of the hoisting steel wire rope is not enough. The existing hoisting container is suspended with a self-balancing device for adjusting the problem of unbalanced tension of four first ropes in the operation process, but the adjustment capability of the self-balancing device is limited due to the length of an oil cylinder of the self-balancing device.

The diameters of the rollers of the four rope grooves used by the friction wheel of the multi-rope friction hoist are required to be the same, if the diameters of the rollers are different, the running speeds of the four ropes are different, the pulling force on the four ropes is further different, and rope skipping occurs, namely, the steel wire rope moves relatively on the friction wheel, so that the friction lining is abraded quickly, the diameters of the rope grooves of the friction wheel are further different, and the steel wire rope shakes or is separated from the grooves. If the rope is taken off the groove, the steel wire rope jumps to the standby rope groove from the rope groove in use, because the diameters of the rollers of the old rope groove and the new rope groove are different greatly, more serious rope fleeing can be caused, the tension force received by the four first ropes is seriously uneven, the stress of a single rope is serious, and the serious consequence of rope breakage or even rope breakage is caused. This situation is all the more severe the deeper the well, i.e. the longer the distance the lifting vessel travels. For example, when the conventional friction type hoist is applied to a deep well with a depth of more than one kilometer, the hoisting container needs to rotate about 120 circles from the wellhead to the friction wheel at the bottom of the well. If the diameter of the friction wheel rope groove with the diameter of 2800mm differs by 20mm, namely some diameters are 2800mm and some diameters are 2780mm, then the movement distance of the first rope in each turn differs by 62.8mm, the movement distance of the first rope in each turn differs by 7536mm from the well head to the well bottom, the adjusting distance of the self-balancing suspension device is only 600mm, each rope with the length of nearly 7 meters needs to be shifted and adjusted on the friction wheel in one-time operation, and the situations of rope shaking, groove separation, serious abrasion of the friction wheel, rope breakage and the like can occur.

How to enable the steel wire rope to be detected immediately after being out of the groove and further take measures to prevent the steel wire rope from being damaged due to continuous operation, which is a technical problem to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming above-mentioned prior art not enough, provide a friction formula lifting machine first rope and taken off groove protection device, can carry out real-time detection to the displacement that wire rope takes place or the phenomenon of taking off the groove, strengthened the security and the reliability of friction formula lifting machine hoist system operation, avoid wire rope because the accident that the unexpected groove that takes off caused, prolonged wire rope's life simultaneously.

in order to achieve the above purpose, the utility model adopts the following technical scheme:

The utility model provides a friction formula lifting machine first rope protection device that breaks away from groove, includes rack and laser correlation sensor, the rack includes two stands and is fixed in upper beam and bottom end rail that parallel distribution about between two stands, the upper beam is used for setting up and is waiting to detect the top of first rope, and the bottom end rail is used for setting up and is waiting to detect the below of first rope, be equipped with the spout on upper beam and the bottom end rail, on laser correlation sensor passed through spout detachable and is fixed in upper beam and bottom end rail, its mounted position on upper beam and bottom end rail is adjusted to laser correlation sensor accessible spout.

Furthermore, the transmitter of the laser correlation sensor is arranged on a first connecting plate, the receiver is arranged on a second connecting plate, the first connecting plate is detachably connected with the upper cross beam through a sliding groove, and the second connecting plate is detachably connected with the lower cross beam through a sliding groove.

Furthermore, the transmitter of the laser correlation sensor is arranged on a first connecting plate, the receiver is arranged on a second connecting plate, the first connecting plate is detachably connected with the lower cross beam through a sliding groove, and the second connecting plate is detachably connected with the upper cross beam through a sliding groove.

Furthermore, the upright posts, the upper cross beam and the lower cross beam are all made of angle iron.

Furthermore, a base is fixed at the bottom end of the upright post.

Furthermore, the laser correlation sensor is connected with a relay, the relay is connected with a controller, and the controller is further connected with an alarm device.

The utility model has the advantages that:

The utility model discloses a friction formula lifting machine first rope takes off groove protection device, simple structure can realize that many ropes detect simultaneously, during the use not with wire rope direct contact, has realized the non-contact detection, does not influence lifting machine normal operating after the installation, uses laser correlation sensor, has that the directionality is good, the interference killing feature is strong, detect the advantage that the precision is high, whole protection device operation is reliable and stable, detect the sensitivity, the errorless action, detection effect is good.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

FIG. 1 is a schematic view of the present invention in use;

FIG. 2 is a schematic view of the present invention taken along the line A in FIG. 1;

Fig. 3 is a schematic view of the assembly of the transmitter and the upper beam of the present invention;

The elevator comprises an upright column 1, an upper cross beam 2, a lower cross beam 3, a sliding chute 4, an elevator head rope 5, an elevator friction wheel 6, an emitter 7, a first connecting plate 8, a receiver 9, a support 10, a ground 11 and a fixing bolt 12.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

it is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

For convenience of description, the words "upper", "lower", "left" and "right" in the present application, if any, merely indicate correspondence with the upper, lower, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the present invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

As introduced in the background art, in the operation process of the existing friction type elevator, one or more first ropes are easy to be separated from a friction rope groove in normal use and jump to another standby groove, so that the friction loss is increased, the service life of the elevator is reduced, and the application provides a first rope groove-separating protection device of the friction type elevator aiming at the problems.

In an exemplary embodiment of the present application, as shown in fig. 1 to 3, a first rope out-of-groove protection device for a friction type elevator comprises a rack and a laser correlation sensor.

The rack comprises two stand columns 1, an upper cross beam 2 and a lower cross beam 3 which are fixed between the two stand columns in an up-down parallel mode through bolts, the stand columns, the upper cross beam and the lower cross beam are all angle irons, the angle irons comprise two angle iron plates which are perpendicular to each other, four sliding grooves 4 are formed in the angle iron plates which are horizontally arranged on the upper cross beam and the lower cross beam, and during use, four first ropes 5 of the hoister to be detected are wound on a friction wheel 6 of the hoister and penetrate through a space between the upper cross beam and the lower cross beam.

The laser correlation sensor adopts an E3F-201 type laser correlation sensor, a transmitter 7 of the E3F-201 type laser correlation sensor is connected with an upper crossbeam through a first connecting plate 8 and a sliding groove 4, a receiver 9 of the E3F-201 type laser correlation sensor is connected with a lower crossbeam through a second connecting plate and a sliding groove, connecting holes and mounting holes are formed in the first connecting plate and the second connecting plate, the transmitter of the E3F-201 type laser correlation sensor is connected with the first connecting plate through the mounting holes, the first connecting plate is connected with the upper crossbeam through the connecting holes, fixing bolts 12, nuts and sliding grooves, the receiver of the E3F-201 type laser correlation sensor is connected with the lower crossbeam through the second connecting plate and the sliding groove in the same way, the transmitter is positioned right above a first rope of the elevator, the receiver is positioned right below the first rope of the elevator, and loosening the fixing bolt to enable the first connecting plate and the second connecting plate to slide along the sliding groove, and adjusting the positions of the emitter and the receiver to enable the emitter and the receiver to be aligned and respectively positioned right above and below the head rope of the elevator.

The bottom end of the upright post is welded on the support 10, and when the lifting device is used, the support is fixed on the ground 11 below the head rope of the lifting machine.

The E3F-201 type laser correlation sensor is connected with a relay, the relay is connected with a controller, the controller adopts a PLC controller, the relay is connected with the input end of the PLC controller, and the PLC controller is also connected with an alarm device to control the alarm device to work.

when the protection device of the utility model is used, when the first rope of the elevator is in the normal position, the tempering of the first rope can block the laser signal sent by the transmitter of the laser correlation sensor, the receiver can not receive the laser signal, at the moment, the switch of the laser correlation sensor is in the normal open state, the alarm device can not work, the elevator runs normally, when the first rope is separated from the rope groove, the first rope shifts and can not block the laser emitted by the emitter, the receiver can receive the laser signal, the switch of the laser correlation sensor is normally opened and shifted and normally closed, the relay connected with the power supply is electrified, the relay outputs a voltage signal to the input end of the PLC controller, the PLC controller controls the alarm device to give an alarm, and through the internal program conversion of the PLC, the elevator is forbidden to operate again after the elevator operates to the middle section and stops, and the elevator can normally operate after the fault is relieved, so that the safe operation of the elevator lifting system is ensured.

The utility model discloses a protection device has realized the non-contact and has detected, does not influence the normal operating of lifting machine after the installation, has effectively improved lifting machine hoist system's security and reliability, has avoided the long-time trough that takes off of first rope to the damage that wire rope caused, has prolonged wire rope's life, has further avoided unplanned's stopping production and has traded the rope, has higher spreading value.

Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.

Claims (6)

1. The utility model provides a friction formula lifting machine first rope protection device that breaks away from groove, its characterized in that, includes rack and laser correlation sensor, the rack includes two stands and is fixed in upper beam and the bottom end rail of parallel distribution from top to bottom between two stands, the upper beam is used for setting up and is waiting to detect the top of first rope, and the bottom end rail is used for setting up and is waiting to detect the below of first rope, be equipped with the spout on upper beam and the bottom end rail, on laser correlation sensor passed through spout detachable and is fixed in upper beam and bottom end rail, its mounted position on upper beam and bottom end rail of laser correlation sensor accessible spout adjustment.

2. The friction type hoist head rope groove-shedding protection device as claimed in claim 1, wherein the emitter of the laser correlation sensor is mounted on a first connecting plate, the receiver is mounted on a second connecting plate, the first connecting plate is detachably connected with the upper cross beam through a sliding groove, and the second connecting plate is detachably connected with the lower cross beam through a sliding groove.

3. The friction type elevator head rope groove-releasing protection device as recited in claim 1, wherein the emitter of the laser correlation sensor is installed on a first connecting plate, the receiver is installed on a second connecting plate, the first connecting plate is detachably connected with the lower cross beam through a sliding groove, and the second connecting plate is detachably connected with the upper cross beam through a sliding groove.

4. The friction type elevator head rope groove-releasing protection device as recited in claim 1, wherein the upright, the upper beam and the lower beam are angle irons.

5. The first rope out-of-groove protection device of the friction type elevator as claimed in claim 1, wherein a base is fixed at the bottom end of the upright column.

6. The first rope out-of-groove protection device of the friction type elevator as claimed in claim 1, wherein the laser correlation sensor is connected with a relay, the relay is connected with a controller, and the controller is further connected with an alarm device.