CN106315349B - A kind of depth vertical is restricted winding hoisting steel wire rope tension automatic equalization device and method more - Google Patents

Abstract

The invention discloses a kind of deep vertical mostly rope winding hoisting steel wire rope tension automatic equalization device and methods, it include the drive system being made of winding drum hoist, boom hoist cable, hoisting container, diversion sheave, tail rope, drive system is equipped with the slide-and-guide head sheave that can be run up and down, and the equalization of strain mechanism of balance rope composition is connected in slide-and-guide head sheave.When occurring boom hoist cable tension imbalance state in lifting system operational process, equalization of strain is realized by the equalization of strain mechanism being connected in slide-and-guide head sheave.Its simple in structure, easy processing, dependable performance, installation and maintenance are simple, can automatically adjust each steel wire rope tension balance.

Description

A device and method for automatically balancing the tension of steel wire ropes in deep vertical shafts with multi-rope winding and hoisting

technical field

The invention relates to a multi-rope friction hoisting system, in particular to a multi-rope winding hoisting steel wire rope tension self-balancing device and method suitable for deep shafts.

Background technique

In the multi-rope winding hoisting system, the load sharing of each wire rope has an extremely important impact on the safety and economy of the hoisting system, so the tension balance device is very important. At present, the tension balance adjustment method of the steel wire rope in the lifting system is mainly based on the hydraulic system of the Unicom principle to control the expansion and contraction of the hydraulic cylinder, and then adjust the length of the rope to balance the tension. It is easy to leak, causing potential safety hazards; another adjustment method is to control the height of the connection point through the principle of equal arm leverage, and then adjust the length of the rope to balance the tension. The main disadvantage of this method is the short adjustment stroke. If people participate in the adjustment, the workload will be heavy, which will easily cause unnecessary accidents, which is not conducive to the efficient operation of the improvement system.

Contents of the invention

Technical problem: The purpose of this invention is to address the deficiencies in the prior art, to provide a deep shaft multi-rope winding hoisting wire rope tension automatic equalization device and method, to solve the problem of unbalanced tension in the multi-rope hoisting process, through its own real-time Dynamic changes in followability regulate tension balance.

Technical solution: The automatic tension equalization device for multi-rope hoisting steel wire ropes in deep shafts of the present invention includes a drive system. The drive system is provided with two sets of sliding guide sky wheels that can run up and down. The two sets of slide guide sky wheels are connected with tension balance mechanism;

The sliding guide sky pulley includes a guide sky pulley, a fixed shaft of the guide sky pulley, a movable pulley coaxial with the guide sky pulley, and both the guide sky pulley and the movable pulley rotate around the axis; slide rails are arranged vertically on both sides of the guide sky pulley , the two ends of the shaft are provided with sliders that coincide with the slide rails, and the sliders are provided with rolling guide shoes that can move in the slide rails;

The tension balance mechanism includes a balance steel wire rope and a top beam fixed on the beam frame of the hoistway. Two fixed pulleys are fixed on the top beam. One end of the balance steel rope is fixed on the top beam, and the other end goes around the movable pulley and the fixed pulley in turn. The pulley is fixed on the top beam.

There are 2 guide sky wheels.

The movable pulleys are arranged symmetrically on both sides of the guide wheel, and there are two on each side.

The method for automatically balancing the tension of the multi-rope hoisting wire ropes in deep shafts using the above-mentioned device comprises the following steps:

a. Before starting work, since the tension in the balance wire rope in the tension balance mechanism remains the same at all times, under the action of the movable pulley and the balance wire rope on the fixed pulley wound on the two sets of sliding guide pulleys, the two sets of sliding guide pulleys will The corresponding movable pulley on the wheel is subjected to the same tension of the balance wire rope, that is, the tension applied to the two sets of sliding guide sky pulleys is the same, so as to maintain the tension balance between the hoisting wire ropes.

b. During the working process, when one of the hoisting wire ropes is released or wound in a different distance than the other hoisting wire rope during the operation of the deep shaft hoisting system, and the tension of the hoisting wire rope is different, one of the hoisting wire ropes The hoisting wire rope with increased tension is applied to the corresponding guide pulley of one set of sliding guide pulleys. Since its pressure is greater than the tension formed by the balance wire rope being wound on the corresponding movable pulley, the guide pulley slides on both sides. The inner relative moves downward; another hoisting wire rope with smaller tension is applied to the corresponding guide pulley of another set of sliding guide pulleys, because its pressure is less than the tension formed by the balance wire rope wound on the corresponding movable pulley, so that The guide sky wheel relatively moves upwards in the slide rails on both sides.

c. During the relative movement of the two groups of guide sky wheels, the tension of the guide sky wheel on the side with the larger tension of the hoisting wire rope is reduced due to the downward movement of the length of the corresponding hoisting wire rope, which balances the tension due to the lifting. The tension of the hoisting wire rope is relatively increased due to the relatively small release distance during the lowering process of the wire rope or the relatively large winding distance during the ascent process; on the contrary, the length of the corresponding hoisting wire rope becomes larger due to the upward movement of the guide pulley on the side with the smaller tension of the hoisting wire rope And increase its tension force, balance the relative reduction of the tension force of the hoisting wire rope due to the relative excessive release distance in the lowering process of the hoisting wire rope or the relatively too small winding distance in the ascent process; The pulling force applied to the two sets of sliding guiding sky wheels is the same, so that the tension of the hoisting wire ropes on the corresponding sliding guiding sky wheels remains the same, and finally the tension of multiple hoisting wire ropes is automatically balanced.

Beneficial effects: the present invention achieves tension balance through the tension balance mechanism connected to the sliding guide wheel. Compared with the prior art, it has simple structure, easy processing, reliable performance, simple installation and maintenance, and can monitor and automatically adjust various Wire rope tension. Has the following advantages:

(1) The invention is reliable in action, can automatically adjust the tension of each lifting wire rope and make the force uniform, reduce the wear of the wire rope, improve the service life of the wire rope, ensure the stable and safe operation of the lifting container, and help improve the reliability of the lifting system sex.

(2) The tension balance mechanism of the present invention adopts a pulley block system, and the adjustment is fast and accurate without delay, and the effect is intuitive. The tension balance can be automatically adjusted without manually measuring the pulling force on the wire rope, and the tension of each traction wire rope can be guaranteed to be consistent.

(3) The present invention has a simple structure, is convenient for processing, installation and use, can effectively save installation and debugging time, and improve use efficiency.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is the plane structure schematic diagram of the present invention;

Fig. 3 is a structural schematic diagram of the sliding guide sky wheel and the tension balance mechanism of the present invention.

In the figure: drive system 1, drum hoist 1-1, hoisting wire rope 1-2, hoisting container 1-3, anti-rope wheel 1-4, tail rope 1-5, sliding guiding sky wheel 2, guiding sky wheel 2- 1. Shaft 2-2, movable pulley 2-3, slide rail 2-4, slider 2-5, rolling guide shoe 2-6, tension balance mechanism 3, balance wire rope 3-1, fixed pulley 3-2, top beam 3-3.

Detailed ways

The present invention is further described below in conjunction with the embodiment in the accompanying drawings:

The multi-rope hoisting steel wire rope tension automatic equalization device of the present invention mainly passes through the drive system 1 and two sets of sliding guide sky wheels 2 arranged on the drive system 1, and the two sets of slide guide sky wheels 2 can run up and down on the drive system 1 , the two sets of sliding guide pulleys 2 are connected with a tension balance mechanism 3;

The drive system 1 includes a drum hoist 1-1, a hoisting wire rope 1-2, a hoisting container 1-3, a reverse rope wheel 1-4 and a tail rope 1-5, and the hoisting wire rope 1-2 is wound on the drum On the hoist 1-1 and the sliding guide pulley 2, the two ends of the hoisting wire rope 1-2 are respectively fixed above the two hoisting containers 1-3, above the hoisting container 1-3 on the side of the drum hoist 1-1 An anti-rope pulley 1-4 is provided to guide the lifting wire rope 1-2, and the two ends of the tail rope 1-5 are respectively fixed under the two lifting containers 1-3;

The sliding guide sky wheel 2 comprises a guide sky wheel 2-1, a fixed shaft 2-2 of the guide sky wheel 2-1, a movable pulley 2-3 coaxial with the guide sky wheel 2-1, and the guide sky wheel 2-1 It rotates with the movable pulley 2-3 around the shaft 2-2; the two sides of the guide sky wheel 2-1 are vertically arranged with slide rails 2-4, and the two ends of the shaft 2-2 are provided with sliding rails 2-4. The slide block 2-5 is provided with a rolling guide shoe 2-6 that can move in the slide rail on the slide block 2-5; the hoisting wire rope 1-2 is wound around the guide sky wheel 2-1. There are two guide sky wheels 2-1. Described movable pulley 2-3 is located at the both sides of guide sky pulley 2-1, symmetrically arranged, each side respectively has two.

The tension balance mechanism 3 includes a balance wire rope 3-1, a top beam 3-3 fixed on the hoistway beam frame, and two rows of fixed pulleys 3-2 are fixed on the top beam 3-3, and the balance wire rope 3- 1. One end is fixed on the top beam 3-3, and the other end is fixed on the top beam 3-3 after going around the movable pulley 2-3 and the fixed pulley 3-2 in turn.

The method for automatically equalizing the tension of the multi-rope hoisting wire ropes in the deep shaft of the present invention comprises the following steps:

a. Before starting work, because the tension moment in the balance wire rope 3-1 in the tension balance mechanism 3 remains the same everywhere, the movable pulley 2-3 and the fixed pulley 3-2 wound on the two sets of sliding guide pulleys 2 Under the action of the balance steel wire rope 3-1, the corresponding movable pulleys 2-3 on the two sets of sliding guide sky pulleys 2 are subjected to the same tension of the balance steel wire rope 3-1, that is, the pulling force applied to the two sets of slide guide sky pulleys 2 is the same, thereby maintaining Improve the tension balance between the wire ropes.

b. During the working process, when one of the hoisting wire ropes is released or wound at a different distance from the other hoisting wire rope during the operation of the deep shaft hoisting system, the tension of the hoisting wire rope 1-2 is unbalanced, One of the hoisting wire ropes 1-2 with increased tension is applied to the corresponding guide sky pulley 2-1 of one set of sliding guide sky pulleys 2. Because its pressure is greater than that of the balance wire rope 3-1, it passes through the corresponding movable pulley 2-3. The tension formed on the top makes the guide sky wheel 2-1 move relatively downward in the slide rails 2-4 on both sides; another lifting wire rope 1-2 with smaller tension is applied to another set of sliding guide sky wheel 2 On the corresponding guide sky wheel 2-1, because its pressure is less than the pulling force formed by the balance wire rope 3-1 wound on the corresponding movable pulley 2-3, the guide sky wheel 2-1 slides on both sides of the rail 2-4 inner relative upward movement.

c. During the relative movement of the two groups of guide sky pulleys 2-1, the length of the corresponding lift wire rope 1-2 becomes smaller due to the downward movement of the guide sky pulley 2-1 on the side where the tension of the hoisting wire rope 1-2 is high And reduced its tension force, balanced the relatively increased tension force of the hoisting wire rope 1-2 because the release distance of the hoisting wire rope 1-2 is relatively too small or the winding distance of the ascent process is relatively too much; on the contrary, the hoisting wire rope 1-2 The guide pulley 2-1 on the side with small tension increases the tension due to the upward movement of the length of the corresponding hoisting wire rope 1-2, which balances the relative excessive release distance of the hoisting wire rope 1-2 during the lowering process. Or the tension of the hoisting wire rope is relatively reduced due to the relatively small winding distance during the ascent process; since the tension of the balance wire rope 3-1 remains the same everywhere at all times, the pulling force applied to the two sets of sliding guide pulleys 2 is the same, so that the corresponding sliding The tension of the hoisting wire ropes 1-2 on the guide sky pulley 2 remains the same, and finally realizes the automatic balancing of tensions of the hoisting wire ropes 1-2.

working principle:

When the tension of the steel wire rope is unbalanced during the operation of the deep shaft hoisting system, due to the different tensions of the ropes, the force loaded on the guide sky wheel 2-1 is also inconsistent, causing the guide sky wheel 2-1 to be in the direction of the slide rail 2-4. Sliding, the height of each guide sky pulley 2-1 is different; at the same time, the pulley block system composed of the movable pulley 2-3 coaxial with the guide sky pulley 2-1 and the fixed pulley 3-2 on the top beam 3-3 has a dynamic Variety;

When at rest, the guide sky wheel 2-1 is in a balanced state, and the force balance in the vertical direction, that is, the pulling force of the hoisting wire rope 1-2 on the lower end is the same as the pulling force of the balanced wire rope 3-1 on the upper end. Since the upper balance wire rope 3-1 is a wire rope passing through the pulley block system, the tension on the rope is the same, so the tension on the top of each guide pulley 2-1 is the same, and the tension on the lower side is also the same, that is, the tension of the lifting wire rope 1-2 is balanced. .

Claims (4)

1. a kind of depth vertical multi rope winding steel wire rope tension automatic equalization device, including drive system（1）, it is characterised in that：Institute State drive system（1）It is equipped with the two groups of slide-and-guide head sheaves that can be run up and down（2）, two groups of slide-and-guide head sheaves（2）Upper company It is connected to equalization of strain mechanism（3）；

The slide-and-guide head sheave（2）Including being oriented to head sheave（2-1）, fixed guide head sheave（2-1）Axis（2-2）And it is oriented to Head sheave（2-1）Coaxial movable pulley（2-3）, it is oriented to head sheave（2-1）With movable pulley（2-3）Around axis（2-2）Rotation；It is oriented to head sheave （2-1）Both sides be disposed with sliding rail vertically（2-4）, axis（2-2）Both ends be equipped with and sliding rail（2-4）The sliding block to match（2-5）, Sliding block（2-5）It is equipped with the rolling guide shoe that can be moved in sliding rail（2-6）；

The equalization of strain mechanism（3）Including balance rope（3-1）, the top beam that is fixed on hoistway roof beam structure（3-3）, top beam （3-3）On be fixed with two rows of fixed pulleys（3-2）, the balance rope（3-1）One end is fixed on top beam（3-3）On, it is another End bypasses movable pulley successively（2-3）And fixed pulley（3-2）After be fixed on top beam（3-3）On.

2. depth vertical multi rope winding steel wire rope tension automatic equalization device according to claim 1, it is characterised in that：It is described Guiding head sheave（2-1）It is 2.

3. depth vertical multi rope winding steel wire rope tension automatic equalization device according to claim 1, it is characterised in that：It is described Movable pulley（2-3）It is located at guiding head sheave（2-1）Both sides are arranged symmetrically, per side it is each there are two.

4. a kind of deep vertical multi rope winding steel wire rope tension automatic balancing method using claim 1,2 or 3 described devices, It is characterized in that including the following steps：

A. before starting to work, due to equalization of strain mechanism（3）In balance rope（3-1）Inside the tension moment everywhere keeps It is identical, it is wrapped in two groups of slide-and-guide head sheaves（2）On movable pulley（2-3）With fixed pulley（3-2）On balance rope（3-1） Under effect, make two groups of slide-and-guide head sheaves（2）Upper corresponding movable pulley（2-3）By balance rope（3-1）Identical drawing Power is applied to two groups of slide-and-guide head sheaves（2）Pulling force it is identical, to keep the equalization of strain between boom hoist cable；

B. in the course of work, when occurring in which that a boom hoist cable another relatively carries in deep mine shaft hoist system operational process Steel wire rope is risen distance difference is discharged or wound in decentralization or uphill process and forms boom hoist cable（1-2）Tension imbalance shape When state, wherein an increased boom hoist cable of tension（1-2）It is applied to one of which slide-and-guide head sheave（2）It is corresponding to be oriented to Head sheave（2-1）On, since its pressure is more than balance rope（3-1）By being wrapped in corresponding movable pulley（2-3）Above formed Pulling force, make the guiding head sheave（2-1）In two wood side-guides（2-4）Inside move relatively downward；The promotion steel that another tension becomes smaller Cord（1-2）It is applied to another group of slide-and-guide head sheave（2）It is corresponding to be oriented to head sheave（2-1）On, since its pressure is less than balance Steel wire rope（3-1）By being wrapped in corresponding movable pulley（2-3）Upper and formation pulling force, makes the guiding head sheave（2-1）In both sides Sliding rail（2-4）Interior relative upward movement；

C. in two groups of guiding head sheaves（2-1）In respective relative movement, boom hoist cable（1-2）The guiding of the big side of tension Head sheave（2-1）Make corresponding boom hoist cable due to moving downward（1-2）Length become smaller and reduce its tension, balance by In the boom hoist cable（1-2）Decentralization process release distance is relatively very few or uphill process winding is carried apart from relatively excessively caused Rise steel wire rope（1-2）The tension of relative increase；On the contrary, boom hoist cable（1-2）The guiding head sheave of the small side of tension（2-1）By Make corresponding boom hoist cable in moving upwards（1-2）Length become larger and increase its tension, balance due to the promotion steel Cord（1-2）Decentralization process release distance is relatively excessive or uphill process winding is apart from relatively very few caused boom hoist cable phase To the tension of reduction；Due to balance rope（3-1）Inside the tension moment everywhere keeps identical, therefore is applied to two groups of slidings and leads To head sheave（2）Pulling force it is identical, to corresponding slide-and-guide head sheave（2）On boom hoist cable（1-2）Tension keep phase Together, more boom hoist cables are finally realized（1-2）Tension automatic equalization.