CN216836812U - Double-transverse-rail single-rail hoisting system suitable for complex site and not prone to unbalance loading - Google Patents

Abstract

The utility model relates to a be fit for complicated place and difficult single track handling system of two cross rails of unbalance loading. The existing monorail cranes cannot be unbalanced loaded. Therefore, the anti-unbalance-loading monorail hoisting system comprises a monorail hoisting travelling mechanism and a hoisting box, wherein the hoisting box is fixed below the monorail hoisting travelling mechanism, the four corners of the hoisting box are respectively provided with hydraulic supporting legs, and the hoisting box is provided with a hydraulic control valve group, inner cavities at the root parts of the cylinders of the hydraulic supporting legs at the same side are communicated through a high-pressure pipe, a transverse rail is arranged below the hoisting box, an electric transverse tackle and an electric steel wire rope winch are respectively provided with a driving motor, and a controller, a left hydraulic sensor, a right hydraulic sensor and a PLC (programmable logic controller) are arranged on the side wall of the hoisting box, and under the PLC, hydraulic values sensed by the left hydraulic sensor and the right hydraulic sensor and a difference value between the hydraulic values are displayed on the display screen simultaneously. The utility model discloses atress automatic balance is fit for colliery complicated environment in the pit and uses, and is difficult for the unbalance loading.

Description

Double-transverse-rail single-rail hoisting system suitable for complex site and not prone to unbalance loading

Technical Field

The utility model relates to a be fit for complicated place and difficult single track handling system of two cross rails of unbalance loading.

Background

The tracks of existing monorail cranes are designed primarily to carry vertical loads and if heavy objects located on one side are hoisted, an unbalance load is created, as shown in figure 1, which tends to pull the track out of shape. Therefore, in the prior art, the electric wire rope winch of the monorail crane can only hoist the heavy object right below the track, which is very inconvenient.

At present, the underground monorail crane is mainly used for transporting equipment and integrally loading materials, and has a good effect. But the phenomena of low track utilization rate and long idle time exist, and the materials can not be transversely transported in the roadway. After equipment and materials are transported to the ground through the monorail crane, the operation personnel still need to carry out secondary transportation and stack the materials to the two sides of the roadway. The potential safety hazard exists, the working efficiency is reduced, and the working intensity of personnel is increased. In addition, the horizontal conveying can not be carried in many cases, and the device is not suitable for underground places with a plurality of peripheral equipment and complex environment.

Disclosure of Invention

The to-be-solved technical problem of the utility model is how to overcome current in pit monorail crane's easy unbalance loading, can not transversely carry, and the defect that the complicated underground place of unsuitable peripheral equipment is many, environment used provides a two cross rail monorail handling system that is fit for complicated place and is difficult for the unbalance loading.

For solving above-mentioned technical problem, this two cross rail single track handling system that are fit for complicated place and be difficult for unbalance loading include single track and hang running gear and lift the case, it fixes in single track and hangs running gear below, its characterized in that to lift the case: the four corners of the lifting box are respectively and vertically fixed with a hydraulic supporting leg, the top end of each hydraulic supporting leg is respectively provided with a supporting plate and is provided with a hydraulic control valve group, the four hydraulic supporting legs are plunger oil cylinders and respectively comprise a cylinder barrel, a plunger, a guide sleeve, a sealing ring and a gland, the inner cavities of the cylinder barrel roots of the two hydraulic supporting legs on the left side of a matched monorail are communicated through a high-pressure pipe, the inner cavities of the cylinder barrel roots of the two hydraulic supporting legs on the right side of the monorail are communicated through a high-pressure pipe, a transverse rail is arranged below the lifting box, an electric transverse tackle is arranged on the transverse rail, an electric steel wire rope winch is arranged on the electric transverse tackle, the electric transverse tackle and the electric steel wire rope winch are respectively provided with a driving motor and a controller, the controller is provided with an ascending button, a descending button, a left moving button and a right moving button and is connected with the driving motors of the electric transverse tackle and the electric steel wire rope winch through wires or wirelessly, the two hydraulic support legs are respectively controlled, a display screen is arranged on the side wall of the lifting box, and the lifting box is provided with a left hydraulic sensor, a right hydraulic sensor and a PLC (programmable logic controller), the left hydraulic sensor is communicated with the inner cavities at the root parts of the cylinder barrels of the left front hydraulic support leg or/and the left rear hydraulic support leg, the right hydraulic sensor is communicated with the inner cavities at the root parts of the cylinder barrels of the right front hydraulic support leg or/and the right rear hydraulic support leg, the left and right hydraulic sensors are connected with the signal input end of the PLC controller, the display screen is connected with the signal output end of the PLC controller and is arranged under the PLC controller, the hydraulic values sensed by the left hydraulic sensor and the right hydraulic sensor and the difference value between the hydraulic values are displayed on the display screen at the same time, the monorail crane walking mechanism is connected with the hoisting box through the rotating table, the number of the transverse rails is two, each transverse rail is provided with an electric transverse pulley, and each electric transverse pulley is provided with an electric steel wire rope winch.

By the design, before the electric steel wire rope winch lifts a heavy object on one side of the transverse rail, the four hydraulic support legs are firstly extended out, and the supporting plate of the electric steel wire rope winch is connected with the top plate of the peripheral roadway. Then planning the hoisting steps and lines in the surrounding environment, selecting an electric steel wire rope winch as a main hoisting mechanism, and fixing the lower end of the steel wire rope on a heavy object to be hoisted; another electric wire rope winch is selected as an adjusting mechanism, and the lower end of the wire rope is fixed on one side of the weight to be lifted, as shown in fig. 2. The load to be lifted is then lifted off the floor 16 by the main lifting mechanism. In the lifting process, the weight to be lifted is pulled and controlled through the adjusting mechanism, and then the weight can be lifted out of a complex place. The design is convenient for adjusting the left and right direction and the up and down elevation angles of the weight to be hung, and the device is suitable for being used in a complex underground environment.

In the hoisting process, when loads generated by heavy objects are applied to one side of the hoisting box, the other side of the hoisting box is upwarped, the hydraulic support legs on the side press to the roadway roof, the reaction force of the roadway roof to the upwarped hoisting box through the hydraulic support legs is increased, the resultant force applied to the monorail crane travelling mechanism is kept vertical all the time, and therefore unbalance loading is avoided. Of course, the possible unbalance loads of this patent refer to the side loads applied to the adapted monorail illustrated in figure 1.

Of course, as shown in fig. 2, the main hoisting mechanism and the adjusting mechanism are also biased to one side. But the main hoisting mechanism is responsible for the main hoisting function, and the direction deflection is limited; the direction deflection of the adjusting mechanism is large, but the output force is limited, and the electric wire rope winch serving as the main hoisting mechanism and the adjusting mechanism cannot be damaged.

Preferably, the rotary table is provided with a rotary driving motor, and the controller is provided with a forward rotation button and a reverse rotation button for controlling the rotary driving motor. So design, be convenient for control the revolving stage as required and rotate.

The utility model discloses utilize aforementioned method that is fit for complicated place and difficult two cross rails single track handling system handling heavy objects of unbalance loading, including following step:

moving the double-transverse-rail single-rail lifting system which is suitable for a complex field and is not easy to carry out unbalance loading to the position above a heavy object to be lifted along a rail;

rotating the operation box according to the upper side barrier and the lower side barrier around the weight to be lifted to enable the two transverse rails to be positioned above the upper side barrier and the lower side barrier, moving an electric transverse pulley to the position above the weight to be lifted through a manipulator, selecting an electric steel wire rope winch below the electric transverse pulley as a main winch, and fixing the lower end of a steel wire rope on the weight to be lifted; the other electric wire rope winch is selected as an adjusting winch, the lower end of the wire rope is fixed on one side of the heavy object to be lifted,

the hydraulic control valve group is used for extending the four hydraulic supporting legs, the supporting plates of the four hydraulic supporting legs are all connected with a matched roadway top plate, and the hydraulic values sensed by the left hydraulic sensor and the right hydraulic sensor are equal and are not lower than 6kg/cm²Then operating a controller, and hoisting a heavy object to be hoisted by using a main winch;

then operating a controller, alternately using and controlling the main hoisting winch and the adjusting winch, and adjusting the left and right directions and the up and down elevation angles of the weight to be hoisted according to the requirement until the weight to be hoisted is far away from the peripheral upper side obstacle and the peripheral lower side obstacle, thereby completing hoisting;

operating the controller to make the electric transverse pulley drive the electric steel wire rope winch and the lower weight to slowly move to the position right below the hoisting box until the difference value of the hydraulic values sensed by the left and right hydraulic sensors reaches 0.1kg/cm²The following is a list of factors, even up to 0,

enabling the four hydraulic supporting legs to be contracted to the shortest state through a hydraulic control valve group, and then moving the transverse track and the heavy object below the transverse track to the position near a destination along a matched monorail;

then, the four hydraulic supporting legs are extended through a hydraulic control valve group, supporting plates of the four hydraulic supporting legs are connected with a matched roadway roof, and hydraulic values sensed by a left hydraulic sensor and a right hydraulic sensor are equal and are not lower than 6kg/cm²；

Operating the controller to enable the electric transverse pulley to drive the electric steel wire rope winch and the lower heavy object thereof to slowly move to the position right below the destination, and dropping the corresponding heavy object onto the destination;

and fifthly, untying the steel wire rope of the main hoisting winch and the adjusting winch from the weight, operating the controller to enable the tail ends of the steel wire rope of the main hoisting winch and the adjusting winch to ascend and separate from the ground, and finally, operating the valve group through hydraulic pressure to enable the four hydraulic supporting legs to contract to the shortest state to complete the hoisting process of the weight.

Before lifting or releasing the heavy object, the four hydraulic support legs are firstly extended, the top supporting plate of the four hydraulic support legs is fully abutted (contacted with the top plate of the roadway), the hydraulic support legs on the other side are slightly upwarped, and the reaction force exerted on the top plate of the roadway above the hydraulic support legs is correspondingly increased. The contact position of the monorail crane walking mechanism and the matched monorail is used as a fulcrum, the moment generated by the increased reaction force on the hoisting box is equal to the moment generated by the hoisting heavy object on the hoisting box through the transverse rail, the directions of the moment and the moment are opposite, the moment and the direction are mutually offset, and the balance is always kept.

The double-cross-rail single-rail hoisting system suitable for the complex site and not prone to unbalance loading and the using method thereof have the advantages of being simple in structure, convenient to use and capable of automatically balancing stress, and are suitable for being used underground in a coal mine.

Drawings

The double-transverse-rail single-rail hoisting system suitable for complex sites and not prone to unbalanced loading is further described in the following with the accompanying drawings:

FIG. 1 is a schematic view of a prior art monorail hoist for off-load hoisting;

FIG. 2 is a schematic view of a top-view perspective structure of the double-cross-rail single-rail hoisting system suitable for complex sites and not prone to unbalanced loading;

FIG. 3 is a schematic view of the bottom perspective structure of the double-cross-rail monorail hoisting system suitable for complex sites and not prone to unbalanced loading;

FIG. 4 is a schematic diagram of the pre-hoisting period of the double-transverse-rail single-rail hoisting system suitable for complex sites and not prone to unbalance loading;

FIG. 5 is a schematic diagram of a later hoisting period of the double-cross-rail single-rail hoisting system suitable for complex sites and not prone to unbalanced loading;

FIG. 6 is a schematic diagram of the double-cross-rail single-rail hoisting system suitable for complex sites and not prone to unbalanced loading after hoisting in place.

In the figure: 1 is a matched monorail, 2 is a monorail crane walking mechanism, 3 is a hoisting box, 4 is a hydraulic supporting leg, 5 is a supporting plate, 6 is a transverse rail, 7 is an electric transverse tackle, 8 is an electric steel wire rope winch, 9 is a display screen, 10 is a left hydraulic sensor, 11 is a right hydraulic sensor, 12 is a rotating table, 13 is a high-pressure pipe, 14 is a heavy object, 15 is a roadway top plate, 16 is a bottom plate, 17 is a lower side barrier, 18 is an upper side barrier (17 and 18 are all other underground equipment), and P1 is a hydraulic value sensed by the left hydraulic sensor 10; p2 is the hydraulic pressure sensed by the right hydraulic pressure sensor 11, Δ P = P1 minus P2; f is the reaction force of the roadway roof to the hoisting box, and G is the weight gravity.

Detailed Description

The first implementation mode comprises the following steps: as shown in fig. 2-3, the utility model discloses be fit for complicated place and the difficult two cross rail monorail handling system of unbalance loading, including single track hang running gear 2 and lift by crane case 3, lift by crane case 3 and fix and hang 2 below, its characterized in that in single track hang running gear: it has a hydraulic support leg 4 to play on the four corners of hanging box 3 respectively the vertical fixation, and 4 tops of each hydraulic support leg are equipped with layer board 5 respectively, and be furnished with hydraulic pressure and control the valves (not shown in the figure), four hydraulic support legs 4 are the plunger hydro-cylinder, include the cylinder respectively, the plunger, the guide pin bushing, sealing washer and gland, the cylinder root inner chamber of 1 left two hydraulic support legs of adapted single track communicates with each other through high-voltage tube 13, the cylinder root inner chamber of two hydraulic support legs 4 on its right side communicates with each other through high-voltage tube 13.

A transverse rail 6 is arranged below the lifting box 3, an electric transverse pulley 7 is arranged on the transverse rail 6, an electric wire rope winch 8 is arranged on the electric transverse pulley 7, the electric transverse pulley 7 and the electric wire rope winch 8 are respectively provided with a driving motor and a controller (not shown in the figure), the controller is provided with a lifting button, a descending button, a left moving button and a right moving button and is connected with the driving motors of the electric transverse pulley 7 and the electric wire rope winch 8 through wires or wireless to control the two respectively, a display screen 9 is arranged on the side wall of the lifting box 3 and is provided with a left hydraulic sensor 10, a right hydraulic sensor 11 and a PLC controller, the left hydraulic sensor 10 is communicated with the root inner cavities of the left front or/and left rear hydraulic supporting legs 4, the right hydraulic sensor 11 is communicated with the root inner cavities of the right front or/and right rear hydraulic supporting legs 4, the left and right hydraulic sensors 10 and 11 are connected with a signal input end of the PLC, the display screen 9 is connected with a signal output end of the PLC, and hydraulic values P1 and P2 sensed by the left hydraulic sensor 10 and the right hydraulic sensor 11 and a difference value delta P between the hydraulic values P1 and P2 are displayed on the display screen 9 under the PLC.

Single track hangs running gear 2 and plays to hang case 3 and be connected through revolving stage 12, horizontal track 6 is total two, is equipped with electronic horizontal coaster 7 on every horizontal track 6 respectively, is equipped with electronic wire rope capstan winch 8 on the electronic horizontal coaster 7. The rotary table 12 is provided with a rotary drive motor (not shown), and the manipulator is provided with a forward rotation button and a reverse rotation button for controlling the rotary drive motor.

As shown in fig. 4-6, the method for hoisting heavy objects by using the double-cross-rail single-rail hoisting system suitable for complex sites and not prone to unbalance loading of the utility model comprises the following steps:

firstly, the double-transverse-rail single-rail hoisting system which is suitable for complex places and is not easy to carry eccentrically is moved to the position above the weight 14 to be hoisted along the rail.

Rotating the operation box 3 according to the upper side barrier 18 and the lower side barrier 17 around the weight 14 to be lifted to enable the two transverse rails 6 to be positioned above the upper side barrier 18 and the lower side barrier 17, moving an electric transverse pulley 7 to the position above the weight 14 to be lifted through a manipulator, selecting an electric steel wire rope winch 8 below the electric transverse pulley as a main winch, and fixing the lower end of a steel wire rope on the weight 14 to be lifted; and the other electric wire rope winch 8 is selected as an adjusting winch, and the lower end of the wire rope is fixed on one side of the heavy object 14 to be lifted.

Thirdly, the four hydraulic supporting legs 4 are extended through the hydraulic control valve group, the supporting plates 5 are connected with the matched roadway top plate 15, the hydraulic pressure P1 and the hydraulic pressure P2 sensed by the left hydraulic pressure sensor 10 and the right hydraulic pressure sensor 11 are equal in value and are not lower than 6kg/cm²Then operating the manipulator to hoist the weight 14 to be hoisted by using the main winch;

after the lifted weight is lifted, under the influence of the gravity of the weight, one side of the lifting box 3 adjacent to the weight slightly falls, the other side of the lifting box 3 upwarps, the hydraulic pressure in the cylinder sleeve of the hydraulic support leg 4 on the upwarping side correspondingly increases, and the difference delta P between the hydraulic values P1 and P2 sensed by the left hydraulic sensor 10 and the right hydraulic sensor 11 reaches the maximum value at the moment. In the process, the roadway roof above the slightly upturned hydraulic support leg 4 is correspondingly increased in the applied reaction force. The contact position of the monorail crane walking mechanism 2 and the matched monorail 1 is taken as a fulcrum, the moment generated by the increased reaction force F on the lifting box 3 is equal to the moment generated by the gravity G of the weight 14 on the lifting box 3 through the transverse rail 6, the directions of the moment and the gravity G are opposite, the moment and the gravity G are mutually offset, and the balance is always kept, so that the resultant force direction of the load borne by the matched monorail is always vertical in the process of lifting the weight, and the problem of unbalance loading of the matched monorail 1 cannot be caused, as shown in fig. 4.

And fourthly, operating the manipulator to alternately use the control main hoisting winch and the adjustment winch and adjust the left and right directions and the up and down elevation angles of the weight to be hoisted according to the requirement until the weight to be hoisted is far away from the obstacles 18 and 17 on the upper side and the lower side of the periphery to finish hoisting, as shown in fig. 5.

And operating the controller to make the electric transverse pulley 7 drive the main winch and the lower weight 14 to slowly move to the position right below the hoisting box 3 until the difference delta P between the hydraulic values sensed by the left and right hydraulic sensors 10 and 11 reaches 0.1kg/cm²Below, even up to 0.

Sixthly, the four hydraulic supporting legs 4 are contracted to the shortest state through the hydraulic control valve group, and then the transverse rail 6 and the weight 14 below the transverse rail are moved to the vicinity of a destination along the matched monorail 1 by the monorail crane walking mechanism 2, as shown in fig. 6.

And then, the four hydraulic support legs 4 are extended through a hydraulic control valve group, supporting plates of the four hydraulic support legs are connected with a matched roadway roof 15, and the hydraulic pressure P1 and P2 sensed by the left hydraulic sensor 10 and the right hydraulic sensor 11 are equal in value and are not lower than 6kg/cm²；

Then operating the controller to enable the electric transverse pulley 7 to drive the main winch and the lower weight 14 thereof to slowly move to the position right below the destination, and dropping the corresponding weight 14 onto the destination;

and fifthly, untying the steel wire rope of the main hoisting winch and the adjusting winch from the weight, operating the controller to enable the tail ends of the steel wire rope of the main hoisting winch and the adjusting winch to ascend and separate from the ground, and finally, operating the valve group through hydraulic pressure to enable the four hydraulic supporting legs to contract to the shortest state to complete the hoisting process of the weight.

Kg/cm in this patent document²Is a customary writing method of pressure unit kilogram force/square centimeter, equivalent to kgf/cm²。

Claims (2)

1. The utility model provides a be fit for complicated place and two cross rail single track handling system of difficult unbalance loading, includes that the single track hangs running gear and lifts by crane the case, it fixes in single track and hangs running gear below, its characterized in that to lift by crane the case: the four corners of the lifting box are respectively and vertically fixed with a hydraulic supporting leg, the top end of each hydraulic supporting leg is respectively provided with a supporting plate and is provided with a hydraulic control valve group, the four hydraulic supporting legs are plunger oil cylinders and respectively comprise a cylinder barrel, a plunger, a guide sleeve, a sealing ring and a gland, the inner cavities of the cylinder barrel roots of the two hydraulic supporting legs on the left side of a matched monorail are communicated through a high-pressure pipe, the inner cavities of the cylinder barrel roots of the two hydraulic supporting legs on the right side of the monorail are communicated through a high-pressure pipe, a transverse rail is arranged below the lifting box, an electric transverse tackle is arranged on the transverse rail, an electric steel wire rope winch is arranged on the electric transverse tackle, the electric transverse tackle and the electric steel wire rope winch are respectively provided with a driving motor and a controller, the controller is provided with an ascending button, a descending button, a left moving button and a right moving button and is connected with the driving motors of the electric transverse tackle and the electric steel wire rope winch through wires or wirelessly, the two hydraulic support legs are respectively controlled, a display screen is arranged on the side wall of the lifting box, and the lifting box is provided with a left hydraulic sensor, a right hydraulic sensor and a PLC (programmable logic controller), the left hydraulic sensor is communicated with the inner cavities at the root parts of the cylinder barrels of the left front hydraulic support leg or/and the left rear hydraulic support leg, the right hydraulic sensor is communicated with the inner cavities at the root parts of the cylinder barrels of the right front hydraulic support leg or/and the right rear hydraulic support leg, the left and right hydraulic sensors are connected with the signal input end of the PLC controller, the display screen is connected with the signal output end of the PLC controller and is arranged under the PLC controller, the hydraulic values sensed by the left hydraulic sensor and the right hydraulic sensor and the difference value between the hydraulic values are displayed on the display screen at the same time, the monorail crane walking mechanism is connected with the hoisting box through the rotating table, the number of the transverse rails is two, each transverse rail is provided with an electric transverse pulley, and each electric transverse pulley is provided with an electric steel wire rope winch.

2. The double-cross-rail single-rail hoisting system suitable for complex sites and not prone to unbalanced loading according to claim 1, wherein: the rotating platform is provided with a rotary driving motor, and the controller is provided with a forward rotation button and a reverse rotation button for controlling the rotary driving motor.

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