CN217055238U - High-adaptability legless advance support for overhead track moving frame - Google Patents

Abstract

The utility model discloses a high adaptability sky track moves a legless fore-stock, including the back timber, the back timber includes two or many crossbeams, and many longerons of overlap joint on the crossbeam, the both ends of crossbeam are equipped with the piston round steel respectively, and the piston round steel is connected with the jack that sets up in the crossbeam roof beam is internal. The support supporting force does not depend on support stand columns for supporting, the advance support is moved in the air, the defects that the current advance support occupies large ground space and the frame moving mode is insufficient are overcome, and the requirement of advanced support of the working face of a modern mine is met.

Description

High-adaptability legless forepoling for overhead rail moving frame

Technical Field

The utility model relates to a tunnel advance support especially relates to a high adaptability aerial track moves a legless fore-stock.

Background

The roadway advance support is one of key factors influencing the high-yield and high-efficiency mining of a modern mine, and has clear regulations and requirements on the roadway advance support in coal mine safety regulations and modern mine construction specifications. Various advanced supports are developed and applied by combining various mining conditions in various coal enterprises, coal equipment enterprises, scientific research institutions and the like, and the roadway support safety and the labor efficiency are greatly improved.

The first technical scheme is as follows:

the kind of current fore-stock is many, including controlling two row formula fore-stocks, sliding fore-stock, unit formula fore-stock, gate-type fore-stock, buttress formula support, offset support etc. its general principle is exactly to utilize the tunnel to settle the space outside equipment etc. sets up base and stand, supports the back timber and maintains the tunnel. However, with the development of high-yield and high-efficiency working faces, equipment such as transportation, crushing, power and the like in the roadway is gradually upgraded, the occupied roadway space is larger and larger, or a large-section roadway cannot be excavated under special geological conditions, so that no enough space is provided for arranging the forepoling, and mechanical and intelligent support cannot be realized. Therefore, it is highly desirable to develop a new type of forepoling that does not occupy floor space.

The second prior art scheme is:

present leading support generally is from the front to the back, moves the frame according to one or two step in proper order, exists and supports the problem that causes the damage to the tunnel roof repeatedly, for solving the no support problem repeatedly of leading support to the roof, avoids causing the destruction to the roof because of supporting repeatedly, realizes tunnel long distance advance support, each enterprise and scientific research institute have researched and developed multiple back and have added the variable front frame and move the frame mode, for example, the winch pulls and moves the frame, the support carrier moves the frame, the single track hangs and moves the frame, the card rail car moves the frame, etc.. However, the frame moving mode cannot avoid occupying the ground space, and is difficult to realize non-repeated support in a roadway with small available space. Therefore, there is a need to develop a new type of advance support which can realize air moving without occupying ground space.

In view of this, the present invention is especially provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high adaptability aerial track moves a legless leading support to solve the above-mentioned technical problem who exists among the prior art.

The utility model aims at realizing through the following technical scheme:

the utility model discloses a high adaptability sky track moves a legless fore-stock, including the back timber, the back timber includes two or many crossbeams, many longerons of overlap joint on the crossbeam, the both ends of crossbeam are equipped with the piston round steel respectively, the piston round steel is connected with the jack that sets up in the crossbeam roof beam body.

Compared with the prior art, the utility model provides a high adaptability aerial track moves a legless fore-stock has realized that the support supporting power does not rely on the support stand to support, has realized that the fore-stock moves a frame in the air, and it is big to have solved current fore-stock and occupy the ground space to and move not enough that the frame mode exists, satisfied modernized mine working face advance support's demand.

Drawings

FIG. 1 is a schematic view of a top beam of a bracket according to an embodiment of the present invention;

fig. 2 is a schematic view of the supporting force of the bracket according to the embodiment of the present invention:

fig. 3a and fig. 3b are schematic diagrams of an auxiliary lifting column according to an embodiment of the present invention;

fig. 4a and 4b are schematic diagrams of the upright column in a vertical position or a horizontal retraction position according to the embodiment of the present invention;

fig. 5 is a schematic view of a moving manner of the leading support according to an embodiment of the present invention;

fig. 6a, 6b and 6c are schematic diagrams of a moving dual-track electric vehicle according to an embodiment of the present invention, which are respectively shown in a front view, a side view and a top view;

fig. 7a and 7b are schematic side view and schematic top view of the transportation support of the movable frame vehicle according to the embodiment of the present invention.

In the figure:

1. the device comprises a cross beam, 2, longitudinal beams, 3, piston round steel, 4, auxiliary lifting columns, 5, column fixing stop blocks, 6, column positioning jacks, 7, a moving track, 8, a moving double-track tractor, 9 and a fore support.

Detailed Description

The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the drawings in the embodiment of the present invention; it is to be understood that the embodiments described are only some embodiments, not all embodiments, and are not to be construed as limiting the invention. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The terms that may be used herein are first described as follows:

the term "and/or" means that either or both can be achieved, for example, X and/or Y means that both cases include "X" or "Y" as well as three cases including "X and Y".

The terms "comprising," "including," "containing," "having," or other similar terms of meaning should be construed as non-exclusive inclusions. For example: including a feature (e.g., material, component, ingredient, carrier, formulation, material, dimension, part, component, mechanism, device, process, procedure, method, reaction condition, processing condition, parameter, algorithm, signal, data, product, or article of manufacture), is to be construed as including not only the particular feature explicitly listed but also other features not explicitly listed as such which are known in the art.

The term "consisting of … …" is meant to exclude any technical feature elements not explicitly listed. If used in a claim, the term shall render the claim closed except for the inclusion of the technical features that are expressly listed except for the conventional impurities associated therewith. If the term occurs in only one clause of the claims, it is defined only to the elements explicitly recited in that clause, and elements recited in other clauses are not excluded from the overall claims.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured," etc., are to be construed broadly, as for example: can be fixedly connected, can also be detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms herein can be understood by those of ordinary skill in the art as appropriate.

The terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship that is indicated based on the orientation or positional relationship shown in the drawings for ease of description and simplicity of description only, and are not intended to imply or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting herein.

The embodiments of the present invention not described in detail belong to the prior art known to those skilled in the art. The embodiment of the present invention does not indicate specific conditions, and the operation is performed according to the conventional conditions in the field or the conditions suggested by the manufacturer. The reagent or instrument used in the embodiment of the utility model does not indicate the manufacturer, and is a conventional product which can be purchased and obtained through market.

The utility model discloses a high adaptability sky track moves a legless fore-stock, including the back timber, the back timber includes two or many crossbeams, many longerons of overlap joint on the crossbeam, the both ends of crossbeam are equipped with the piston round steel respectively, the piston round steel is connected with the jack that sets up in the crossbeam roof beam body.

The back timber respectively sets up 2 or a plurality of supplementary lift stands in both sides, supplementary lift stand adopts two flexible or three flexible stands to be equipped with inside feed pipe.

The upright post is hinged with the top beam, an upright post fixing stop block is arranged at the head of the upright post connected with the top beam, and an upright post position adjusting jack fixed on the top beam adjusts the upright post to be in a vertical position or a horizontal withdrawing position by pushing the stop block.

The upright post position adjusting jack is provided with a hydraulic lock.

The two sides of the top beam or the whole top beam are provided with gangue leakage prevention devices, and the support is provided with a side wall protection device.

The moving mode of the fore support is a mode that a rear support is changed into a front support and no repeated support is used, moving tracks are fixed in the two sides of the roadway coal wall in a semi-empty mode, and moving double-track tractors are arranged on the moving tracks.

The moving frame double-track tractor adopts four wheels to drive front and back or drive front, and the moving frame track adopts a clamping track type.

A square hole for assisting the extension and retraction of the support upright post is reserved in the middle of the moving frame double-track tractor;

the middle part of the front-back direction structure of the moving double-track tractor is concave, and the left-right direction structure is provided with a support stop dog.

The moving double-track tractor adopts a manual or remote control or intelligent control mode.

To sum up, the utility model discloses high adaptability aerial track moves a legless fore-stock, the innovation has realized that the support supporting power does not rely on the support stand to support, has realized that the fore-stock moves a frame in the air, and it is big to have solved current fore-stock and occupy the ground space to and move not enough that the frame mode exists, satisfied modernized mine working face advance support's demand.

The utility model discloses a principle as follows:

1) the top beam of the forepoling is connected with the top, and a plurality of round steel bars inserted into the coal wall of the roadway on the left side and the right side provide passive supporting force.

2) The forepoling adopts double track electric traction car to move the frame, and the track sets up on tunnel both sides coal wall.

3) The fore support adopts a stand column with large expansion ratio to assist in jacking and lowering the support, and is contracted into a support top beam body when not used.

In order to show the technical solutions and the technical effects provided by the present invention more clearly, the following detailed description is provided in the embodiments of the present invention with specific embodiments.

Example 1

1. Support roof beam:

as shown in fig. 1, two or more cross beams are adopted, a plurality of longitudinal beams are lapped on the cross beams, and the number of the longitudinal beams is determined according to the width of a roadway and the arrangement of anchor rods and anchor cables of a roadway top plate.

2. Supporting force of the bracket:

as shown in fig. 2, a plurality of round bars inserted into the roadway coal wall from the left and right sides of the support provide passive support force. Jacks are arranged in the beam body at the left side and the right side of the top beam cross beam, and piston round steel is inserted into and withdrawn from the coal wall of the roadway by using high hydraulic push-pull force.

3. As shown in fig. 3a and 3b, each super front support is provided with 2 or more auxiliary lifting columns at two sides near the coal wall.

4. The upright post adopts an internal circulation liquid supply upright post, and the exposed liquid supply pipes are reduced as much as possible. According to the requirement of a matching space, double-telescopic or three-telescopic upright columns (a coal northern machine patent) can be adopted, so that the large telescopic ratio of the upright columns is ensured, and the length of the upright columns in a retracting state is shortened as much as possible.

5. As shown in fig. 4a and 4b, an upright post fixing stop is arranged at the upright post head connected with the top beam, and an upright post position adjusting jack fixed on the top beam adjusts the upright post to be in a vertical position or a horizontal retraction position by pushing the stop. After the support is supported by the support in a butting mode or the support falls to the bottom, the stand column is completely retracted, and the retracted stand column is adjusted to the horizontal position by extending out of the stand column position adjusting jack. The upright post position adjusting jack is provided with a hydraulic lock.

6. As shown in fig. 5, the front frame is changed from the rear frame to the front frame without repeated support. The double-track electric car or the battery car and the like are adopted to carry the moving frame, the tracks are fixed at the two sides of the coal wall of the roadway in a semi-empty mode, and the floor equipment arranged in the roadway is not influenced when the moving frame is moved.

7. As shown in fig. 6a, 6b and 6c, the moving double-track electric car adopts four-wheel front-rear double drive or front drive; in order to ensure the safety of transportation, a clamping rail type is adopted; a square hole is reserved in the middle of the carrying rail clamping vehicle, so that the extension and the retraction of the auxiliary supporting upright posts are facilitated; the middle part of the structure in the front-back direction of the transport vehicle is concave, and the stop blocks are arranged in the left-right direction, so that the stability and reliability of the support transportation process are ensured.

8. As shown in fig. 4a and 4b, the moving double-track electric car can adopt a manual or remote control or intelligent control mode.

The utility model discloses beneficial effect that technical scheme brought:

the problem of the advance support of return air tunnel and haulage way not have the support repeatedly is solved, prevents the destruction of advance support to the tunnel roof. Particularly, according to the requirements of coal mine safety regulations, the advance support distance of the rock burst working face roadway exceeds 70 meters, and the integrity of a top plate of the roadway cannot be ensured by non-repeated support advance support. The existing mode of no repeated support and frame moving mostly adopts single-track frame moving, frame moving along a bottom track, frame moving along bottom traction, carrier frame moving and the like, and is difficult to realize when equipment is arranged in a roadway, especially the transportation roadway is not solved so far, and the scheme realizes frame moving in the air, so that the problem is well solved;

the legless support of the fore support is realized, and the ground space of the roadway is not occupied. Especially for the conditions that a large-section roadway cannot be excavated under special geological conditions, or equipment in the roadway is large in size, abundant space in the roadway is small, a forepoling is not arranged in enough space, or a safe pedestrian passageway is not arranged after the forepoling is arranged, the scheme only adopts the auxiliary upright post to support and then completely retract, and the difficult problem is solved perfectly. Moreover, due to the adoption of the forepoling in the scheme, the section of the excavated roadway can be intentionally reduced, the workload and time for preparing the working face are reduced, and the coal seam mining efficiency is improved;

the forepoling does not need to be provided with a base, a stabilizing mechanism and the like, so that the forepoling not only occupies small space, but also has light weight and low cost; the bracket has simple structure and is convenient to maintain;

the advanced support has a small influence relation with the matched arrangement of equipment in the roadway, a small influence relation with the height of the roadway, a small influence relation with the geological condition of the bottom plate of the roadway and even only related to the width of the roadway, so the scheme has strong universality and applicability;

the connecting top beam of the super front bracket adopts a strip beam type, so that the anchor rod and the anchor cable can be avoided, and the integrity of the top plate can be kept.

In a word, the utility model discloses some leading supports is one kind can realize not having the leading supports who relapses the support, can realize long distance advance support, is one kind and can adapt to rock burst tunnel, broken roof tunnel advance support, is one kind and can adapt to the high adaptability high-pass usability leading supports in the less tunnel of ground rich space, co-altitude tunnel.

In particular implementations, alternatives may be employed:

and gangue leakage prevention devices or other top beam structural types are arranged on two sides of the top beam of the support or the whole top beam.

The bracket is provided with a side wall protection device or other auxiliary devices.

The support adopts a lifting arm or other auxiliary support lifting devices.

The diesel vehicle or other support moving device is adopted.

The bracket adopts an auger or other methods, so that the part inserted into the coal wall provides passive supporting force; or the side thrust of the bracket is adopted, and the friction force and the prop force are utilized to provide the supporting force for the bracket.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Claims (9)

1. The utility model provides a high adaptability sky track moves a legless fore-stock, a serial communication port, includes the back timber, the back timber includes two or many crossbeams, many longerons of overlap joint on the crossbeam, the both ends of crossbeam are equipped with the piston round steel respectively, the piston round steel is connected with the jack that sets up in the crossbeam roof beam body.

2. The high-adaptability legless advanced support for overhead rail moving frame of claim 1, wherein the top beam is provided with 2 or more auxiliary lifting columns on two sides, the auxiliary lifting columns are double-telescopic or triple-telescopic columns and are provided with internal liquid supply pipes.

3. The high-adaptability overhead rail frame-moving legless advance support frame according to claim 2, wherein the upright is hinged with the top beam, an upright fixing stop block is arranged at the head of the upright connected with the top beam, and an upright positioning jack fixed on the top beam adjusts the upright to be in a vertical position or a horizontal retraction position by pushing the stop block.

4. The high-adaptability overhead rail transfer legless advance support according to claim 3, wherein the column positioning jack is provided with a hydraulic lock.

5. The high-adaptability legless advance support for overhead rail transfer according to claim 4, wherein the two sides of the top beam or the whole top beam are provided with gangue leakage prevention devices, and the support is provided with side wall protection devices.

6. The high-adaptability air track frame-moving legless forepoling as claimed in any one of claims 1 to 5, wherein the frame-moving mode of the forepoling adopts a mode of changing a rear frame into a front frame without repeated support, frame-moving tracks are fixed in the half-empty space at two sides of the roadway coal wall, and frame-moving double-track tractors are arranged on the frame-moving tracks.

7. The high-adaptability legless advance support for overhead rail transfer of claim 6, wherein the transfer double-track tractor adopts four-wheel front-back double drive or forerunner drive and the transfer rail adopts a clamping rail type.

8. The high-adaptability legless advance support for overhead rail transfer of claim 7, wherein a square hole for assisting the extension and retraction of the support column is reserved in the middle of the double-track tractor for transfer;

the middle part of the front-back direction structure of the moving double-track tractor is concave, and the left-right direction structure is provided with a support stop dog.

9. The high-adaptability aerial rail moving legless forepoling as claimed in claim 8, wherein the moving double-track tractor adopts a manual or remote control or intelligent control mode.

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