阅读说明：本技术 一种应用拖运车回撤综采液压支架的方法 (Method for withdrawing fully-mechanized mining hydraulic support by using hauler ) 是由 史守忠 蒲宝山 谢波 冯磊 田贺 刘祥兵 张佃龙 李振 孙强 于 2020-07-03 设计创作，主要内容包括：本发明提供一种应用拖运车回撤综采液压支架的方法,包括步骤：将拖运车行进至被撤支架位置；降下全部下支撑装置,将勾头连接至被撤支架底座,利用机械臂的摆动及伸缩运动将被撤支架抽出并调整方向；收回各下支撑装置,操控机械臂摆动及履带行走机构行进调整被撤支架与工作面方向一致并且拖拽至工作面端头或指定位置；操控拖运车原路返回；循环撤除下一被撤支架。本申请完全取代了传统绞车和单体作业,提升了撤除施工效率,降低劳动强度,提升了施工安全性。(The invention provides a method for withdrawing a fully mechanized mining hydraulic support by using a hauler, which comprises the following steps: the hauling vehicle is moved to the position of the removed bracket; lowering all the lower supporting devices, connecting the hook heads to the bases of the supports to be removed, and extracting the supports to be removed by utilizing the swinging and telescopic motions of the mechanical arms and adjusting the directions; withdrawing all the lower supporting devices, controlling the swinging of the mechanical arm and the advancing adjustment of the crawler traveling mechanism to enable the withdrawn support to be consistent with the direction of the working surface and dragging the withdrawn support to the end head or the designated position of the working surface; controlling the original path of the hauler to return; and circularly removing the next removed bracket. This application has replaced traditional winch and monomer operation completely, has promoted and has removed the efficiency of construction, reduces intensity of labour, has promoted the construction security.)

1. A method for withdrawing a fully mechanized mining hydraulic support by using a hauler is characterized by comprising the following steps:

the method comprises the following steps that a hauling vehicle (1) is moved to a position of a to-be-removed support (2), the hauling vehicle (1) is provided with a machine body, crawler traveling mechanisms are arranged on the left side and the right side of the machine body, a mechanical arm with lifting, rotating and stretching functions is arranged at the front part of the machine body, an automatic cable winding device used for placing a cable and a tail frame mechanism with a lifting function are arranged at the rear part of the machine body, a lower supporting device is arranged at each of four corner positions of the machine body, a side supporting device is arranged on each of two sides of the tail frame mechanism, and the driver operating platform controls the mechanical arm to extend and swing so that a front end hook head of the mechanical arm is opposite to the center position of a;

all the lower supporting devices are descended, the hook heads are connected to the base of the removed bracket, and the removed bracket (2) is drawn out and the direction is adjusted by utilizing the swinging and telescopic motion of the mechanical arm;

withdrawing each lower supporting device, controlling the mechanical arm to swing and the crawler traveling mechanism to advance, adjusting the direction of the withdrawn support (2) to be consistent with the direction of the working surface, and dragging the withdrawn support to the end of the working surface or a designated position;

controlling the original path of the hauler (1) to return;

removing the next removed bracket (2);

and circulating the steps.

2. The method for withdrawing a hydraulic support for fully mechanized mining using a hauler according to claim 1, wherein the steps of: after the withdrawn support (2) is drawn out and the direction is adjusted by utilizing the swinging and stretching of the mechanical arm, and when the tail swinging phenomenon of the equipment occurs, the side supporting device is controlled to abut against the coal wall so as to maintain the stability of the equipment.

3. The method for withdrawing a hydraulic support for fully mechanized mining using a hauler according to claim 1, wherein the steps of: and after the mechanical arm is controlled to swing and the crawler traveling mechanism is controlled to advance to adjust the direction of the removed support (2) to be consistent with the direction of the working surface and drag the removed support to the end of the working surface or the designated position, the method also comprises the steps of controlling the hauling vehicle (1) to pull the shield frame and maintaining the top plate above the removed support (2).

4. A method for withdrawing a hydraulic support for a fully mechanized mining using a hauler according to claim 3, wherein the steps of: and controlling the hauling vehicle (1) to pull the shield frame, maintaining the top plate above the removed bracket (2), and then positioning and supporting the shield frame to confirm the maintenance safety of the top plate.

5. The method for withdrawing a hydraulic support for fully mechanized mining using a hauler according to claim 4, wherein the steps of: the mechanical arm is controlled to swing, the track traveling mechanism advances to adjust the direction of the removed support (2) to be consistent with the direction of the working surface, and the front end of the base of the removed support is controlled to lift up a preset distance in the dragging process after the support is dragged to the end of the working surface or the designated position, so that the base of the removed support is dragged conveniently, and the whole base of the removed support is prevented from being lifted.

6. Method for withdrawing a hydraulic support for comprehensive mining with a tow vehicle according to claim 5, characterized in that said predetermined distance is in particular 100 mm.

Technical Field

The invention relates to the technical field of hydraulic support withdrawing, in particular to a method for withdrawing a fully mechanized mining hydraulic support by using a hauling vehicle.

Background

Along with the adjustment of national coal productivity policy, the mine tends to be large-scale gradually, the model of the applied hydraulic support is larger and larger, and the weight is heavier and heavier, so that higher requirements are provided for the removal of the hydraulic support.

At present, the main methods for removing the hydraulic support on the fully mechanized mining face include the following two methods:

a is a direct removing method, mainly apply to the removal of the hydraulic support when the roof condition of the working face is better, withdraw the side guard plate of the hydraulic support at first, and make it drop the post, utilize winch or jack to pull out the hydraulic support along the direction of perpendicular coal wall 1.5-1.8 meters, then, make it rotate 90 degrees, reuse winch to pull to the loading place, after the first group of supports of the end of working face is removed, need to play a wood buttress and support the roof, after every group of supports of removing, need to support the canopy along the direction of working face, in order to support the canopy and move towards one end of the goaf side;

the other method is a shield frame-removing method which is mainly used for removing hydraulic supports when the working face top plate condition is poor, firstly, the top plate at the withdrawing end of the working face is well maintained by single hydraulic supports and wood buttress beams, then three groups or four groups of hydraulic supports at the starting end part are adjusted to be parallel to the coal wall of the working face so as to shield the frame-by-frame removing of other hydraulic supports, and other measures are matched in time to support and remove the space.

The two methods are both pulled out by adopting a method of matching a winch or a single body with the winch, and then the winch is used for dragging the winch to a working face loading platform or a crossheading loading chamber for loading and transporting, so that the labor capacity of workers is large, the working efficiency is low, and potential safety hazards exist.

Disclosure of Invention

The invention aims to provide a method for withdrawing a fully mechanized mining hydraulic support by using a hauling vehicle, which solves the technical problem.

The invention provides a method for withdrawing a fully mechanized mining hydraulic support by using a hauling vehicle, which comprises the steps of advancing the hauling vehicle to the position of a withdrawn support, wherein the hauling vehicle is provided with a machine body, crawler walking mechanisms are arranged on the left side and the right side of the machine body, a mechanical arm with lifting, rotating and stretching functions is arranged at the front part of the machine body, an automatic cable winding device for placing a cable and a tail frame mechanism with a lifting function are arranged at the rear part of the machine body, a lower supporting device is respectively arranged at the four corner positions of the machine body, a side supporting device is respectively arranged at each of two sides of the tail frame mechanism, and the driver operating platform controls the mechanical arm to extend and swing so that a hook head at the front end of the mechanical arm is opposite to the central position of a base of the;

lowering all the lower supporting devices, connecting the hook heads to the bases of the supports to be removed, and extracting the supports to be removed by utilizing the swinging and stretching of the mechanical arms and adjusting the directions;

withdrawing each lower supporting device, controlling the mechanical arm to swing and the crawler traveling mechanism to advance, adjusting the direction of the withdrawn support to be consistent with the direction of the working surface, and dragging the withdrawn support to the end of the working surface or a designated position;

controlling the original path of the hauler to return;

removing the next removed bracket;

and circulating the steps.

Preferably, the steps of: after the support to be removed is drawn out and the direction is adjusted by utilizing the swinging and stretching of the mechanical arm, and when the tail swinging phenomenon of the equipment occurs, the side supporting device is controlled to abut against the coal wall so as to maintain the stability of the equipment.

Preferably, the steps of: and controlling the mechanical arm to swing and the crawler traveling mechanism to advance to adjust the direction of the removed support to be consistent with the direction of the working surface and drag the removed support to the end of the working surface or the designated position, and then controlling the hauling truck to pull the shield frame and maintain the top plate above the removed support.

Preferably, the steps of: and controlling the hauling truck to pull the shield frame, maintaining the top plate above the removed support, putting the shield frame in place and supporting, and confirming the maintenance safety of the top plate.

Preferably, the steps of: the mechanical arm is controlled to swing, the track traveling mechanism advances to adjust the direction of the removed support to be consistent with the direction of the working surface, and the removed support is controlled to be lifted for a preset distance by the front end of the removed support base in the dragging process after the removed support is dragged to the end of the working surface or the designated position, so that dragging is facilitated, and the whole removed support base is prevented from being lifted.

Preferably, the preset distance is specifically 100 mm.

Compared with the prior art, the method for withdrawing the fully mechanized mining hydraulic support by using the hauling vehicle provided by the application carries out the following operations when the hydraulic support is withdrawn: firstly, controlling a hauling vehicle to enable a mechanical arm to lift, rotate and stretch so as to ensure that a front end hook head of the mechanical arm is over against the central position of the bottom of a withdrawn support; step two, descending each lower supporting device in sequence, and connecting the hook head to the base of the removed bracket; step three, drawing out the withdrawn support and adjusting the direction by adjusting the swinging and the stretching of the mechanical arm; controlling the trolley to walk and the mechanical arm to swing, adjusting the position of the removed support to enable the position of the removed support to be consistent with the direction of the working surface, and dragging the support to the end or the designated position of the working surface; and fifthly, controlling the original path of the hauler to return, and repeating the removing steps. The method for withdrawing the fully-mechanized mining hydraulic support can completely replace a traditional winch and a single body, the support can be pulled out and dragged to be integrated, the equipment can be used with a hydraulic support carrier in a matched mode, the full-mechanized operation from the drawing-out of the underground hydraulic support to the carrying and well lifting process is achieved, the automation degree is high, the work efficiency is remarkably improved, the construction safety is improved, and the labor intensity of workers is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1-4 are working flow charts of the method for withdrawing the fully-mechanized mining hydraulic support by using the hauling vehicle provided by the invention.

Wherein, 1-the hauling vehicle and 2-the withdrawn bracket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Please refer to fig. 1-4, which are flowcharts illustrating a method for withdrawing a hydraulic support for fully mechanized mining by using a hauler according to the present invention.

The invention provides a method for withdrawing a fully mechanized mining hydraulic support by using a hauling vehicle, which is mainly used for withdrawing the fully mechanized mining hydraulic support in an underground coal mine, and comprises the following steps:

firstly, the hauling vehicle 1 is moved to the position of the removed bracket 2, and a driver console controls the mechanical arm to extend and swing so that a hook head at the front end of the mechanical arm is opposite to the central position of a base of the removed bracket 2;

lowering all the lower supporting devices, connecting the hook heads to the base of the removed bracket, and extracting the removed bracket 2 by utilizing the swinging and stretching of the mechanical arm and adjusting the direction;

thirdly, withdrawing each lower supporting device, controlling the swinging of the mechanical arm and the advancing of the crawler traveling mechanism to adjust the direction of the withdrawn support 2 to be consistent with the direction of the working surface, and dragging the withdrawn support to the end head or the designated position of the working surface;

fourthly, operating the hauler 1 to return to the original path;

and step five, circularly removing the rest of the removed brackets 2.

Wherein, the hauling vehicle 1 for withdrawing the fully mechanized mining hydraulic support has compact integral structure and low profile, comprises a machine body, the machine body is provided with a front frame and a rear frame, crawler traveling mechanisms are arranged on the left side and the right side of the machine body, the front part of the machine body is provided with a mechanical arm, the rear part of the machine body is provided with a tailstock mechanism, four corner positions of the machine body are respectively provided with a lower supporting device, two sides of the tailstock mechanism are respectively provided with a side supporting device, the mechanical arm has the functions of lifting, rotation and extension, and comprises an extension inner cylinder, an outer cylinder, an extension cylinder and a lifting cylinder, the extension inner cylinder can realize extension and retraction movement relative to the inner part of the outer cylinder under the driving of the extension cylinder, in addition, one end of the lifting cylinder is fixed on the machine body, the other end is connected with a hinged lug seat, the extension inner, the rear part of the outer barrel is hinged with the machine body through a pin shaft, in addition, the front end face of the front frame of the machine body is provided with a revolving frame and a revolving oil cylinder, the front frame and the rear frame are connected through a stable pin and a high-strength bolt, the revolving oil cylinder is connected with the revolving frame, the revolving frame is driven to do revolving motion under the driving of the revolving oil cylinder and a motor pump station, and the revolving motion under the action of driving force is realized.

The tail frame mechanism is provided with an automatic cable winding device for placing a cable and a driver console, the tail frame mechanism has a lifting function, four corner positions of the machine body are respectively provided with a lower supporting device, two sides of the tail frame mechanism are respectively provided with a side supporting device, and a driver controls the walking of the crawler walking mechanism, the telescopic lifting and the rotating actions of the mechanical arm, the cable winding action of the automatic cable winding device, the front lifting action of the tail frame mechanism and the telescopic supporting actions of the lower supporting device and the side supporting device through the driver console. The hauling vehicle 1 can also be used in cooperation with a hydraulic support carrier, so that full-mechanized operation of the underground hydraulic support from drawing to carrying and lifting is realized, meanwhile, the hauling vehicle 1 can also be used for hoisting or dragging other heavy equipment, the application range is wide, the whole process does not need participation of workers except for controlling the hauling vehicle 1, the circular hoisting of all the hydraulic supports can be realized, and the operation efficiency is improved.

In the first step, the hauling vehicle 1 moves to the withdrawn support 2, the mechanical arm is swung, the telescopic inner cylinder extends out of the outer cylinder, and the position of the hook head is adjusted to ensure that the hook head is opposite to the central position of the support base.

In the second step, after the swing and the expansion of the mechanical arm are utilized to draw out the withdrawn bracket 2 and adjust the direction, the device also comprises a control side support device to abut against the coal wall when the tail swinging phenomenon occurs to the device, so as to maintain the stability of the device, namely, when the tail swinging phenomenon occurs in the withdrawing process of the device, the control side support device and the control side support device abut against the coal wall, so that the device is stable, and the safe operation in the withdrawing process is ensured.

In the third step: control arm swing and track running gear and advance the adjustment and be withdrawn support 2 and the working face direction unanimity and drag behind working face end or assigned position, still include the step: the step of controlling the hauling vehicle 1 to pull the shield frame and maintaining the top plate above the removed bracket 2 is particularly applied to the condition of the top plate of the working face to ensure safe operation.

Further, in the step: and controlling the hauling vehicle 1 to pull the shield frame, and after maintaining the roof above the removed support 2, positioning and supporting the shield frame to confirm the roof maintenance safety.

Further, in the step: control arm swing and track running gear and advance the adjustment and be withdrawn support 2 and the working face direction unanimity and drag behind working face end or assigned position, still include the step: the base front end that pulls in-process control and is removed support 2 lifts up to predetermineeing the distance to do benefit to and pull and prevent to mention all by removing support 2 bases.

The preset distance is preferably, but not limited to, 100mm, and should be set according to actual requirements.

The core of the application lies in that a technological method for removing the support by using the hauling vehicle is adopted, compared with the traditional technology, the working efficiency is improved to some extent, the working environment is improved, the safe use coefficient is improved, and the accident rate is reduced, the traditional fully mechanized mining face hydraulic support is withdrawn by adopting a mode of pulling a steel wire rope of a retracting winch to pull the support firmly or adopting a single hydraulic support to cooperate with the retracting winch to adjust the support, then the winch is used for dragging and transporting the support outwards, 2-3 hours are required for removing one hydraulic support by using the winch, although 5-7 supports can be withdrawn, the rope breakage, bounce and slippage of the winch easily occur in the withdrawing process, the safety coefficient is low, the mode of removing the support by using the hauling vehicle 1 in the application replaces the mode of hauling the steel wire rope of the retracting winch and the single hydraulic support to cooperate with the adjusting support, the safety coefficient is greatly improved, and the rope breakage of the winch is avoided, Accidents such as hurting people by jumping and slipping can be caused, and the accident occurrence probability is reduced.

In addition, adopt the tow car 1 to remove the support mode, reduced intensity of labour: when the traditional process is adopted to remove the support, after the support is transported to the crossheading opening, 2-3 persons are required to be invested by a team to cooperatively remove the hook head, and the steel wire rope for dragging and moving is manually dragged to the removal working face to be hooked, so that the labor intensity is high. The phenomena of feet sprain of personnel and personnel scratch by a steel wire rope easily occur in the dragging process. The support is removed by the hauling vehicle 1, links of picking and hanging hook heads and dragging the steel wire rope by personnel are reduced, the support is hauled by control and control, and labor intensity is reduced.

The method for withdrawing the fully mechanized mining hydraulic support by using the hauling vehicle provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.