CN212406774U - Combined hydraulic support for gob-side entry retaining - Google Patents
Combined hydraulic support for gob-side entry retaining Download PDFInfo
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- CN212406774U CN212406774U CN202020949655.4U CN202020949655U CN212406774U CN 212406774 U CN212406774 U CN 212406774U CN 202020949655 U CN202020949655 U CN 202020949655U CN 212406774 U CN212406774 U CN 212406774U
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- side entry
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Abstract
The utility model discloses a combination formula hydraulic support for gob entry belongs to colliery underworkings and struts technical field. The combined hydraulic support comprises unit supports symmetrically arranged on two sides of a roadway, each unit support comprises a top beam, a support body and a support base which are sequentially arranged from top to bottom, each support body comprises a hydraulic stand column, a control valve used for controlling the hydraulic stand columns to ascend and descend is arranged on each support body, and the lower sides of the unit supports are connected with movable bases through the support bases. The combined hydraulic support for gob-side entry retaining is reasonable and reliable in structure and simple to use and operate, the movable base is directly placed on the soft bottom plate of the roadway, the unit supports are lifted tightly to support the top plate and the bottom plate, the problems that workers in support forms such as single pillars and stack supports for gob-side entry retaining roadway support of three soft coal seams are high in labor intensity, low in safety, inconvenient to move and low in working efficiency are solved, and reliable guarantee is provided for the safe, efficient and green mining targets of modern mines.
Description
Technical Field
The utility model belongs to the technical field of colliery liquid roadway support in the pit, concretely relates to combination formula hydraulic support for gob entry.
Background
With the popularization of coal-pillar-free mechanized mining, no matter what type of coal-pillar-free mining gob-side entry retaining mode, because certain time is required for stable rotation of an overlying rock stratum and compaction of waste rocks in a goaf, the existing coal mine underground is mostly used in the working face advance and the goaf roadway mining range, and a single hydraulic prop, a stacked hydraulic support or a portal hydraulic support is erected for reinforcement supporting. However, as the working face is propelled, the mining pressure is severe, the support resistance of the single prop adopted in the prior art is low, and the control effect on the soft bottom plate is poor, so that the problem of serious roadway bottom bulging is easily caused, and the safety production of the working face is further influenced. Meanwhile, the walking and the carrying of the stack type hydraulic support and the portal type hydraulic support which are adopted at present depend on a winch to pull and move or adopt a walking mode of pushing a jack to further move, the moving modes are mostly pulled and moved by the winch, so that the labor intensity of workers is high and unsafe, the tunnel top plate can be seriously damaged in the moving process, and great potential safety hazards exist. These problems all lead the original purpose of the existing gob-side entry retaining support form and the mechanized excavation mode to run away, and become important factors which restrict the safe, efficient and green mining of mines.
Therefore, aiming at the problems of serious roadway deformation and large bottom heave amount existing in the roadway support of the underground fully mechanized coal mining face of the coal mine, a support device which can adapt to the mining environment needs to be researched and developed urgently, and reliable guarantee is provided for underground safe mining of a modern mine.
SUMMERY OF THE UTILITY MODEL
In order to overcome the shortcoming of above-mentioned prior art, the utility model aims to provide a combination formula hydraulic support for gob entry, this combination formula hydraulic support structural design is reasonable, and the installation of being convenient for is used, has solved in the colliery underground mining gob entry tunnel through using this combination formula hydraulic support and has warp serious, the big problem of pucking volume, provides the powerful guarantee for the target that realizes modernized mine safety high efficiency, green exploitation.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
the utility model discloses a combined hydraulic support for gob-side entry retaining, which comprises unit supports symmetrically arranged at two sides of a roadway, wherein each unit support comprises a top beam, a support body and a support base which are sequentially arranged from top to bottom;
the bracket body comprises two or more hydraulic upright columns which are uniformly distributed on a bracket base; and a control valve for controlling the lifting of the hydraulic upright post is arranged on the support body.
Preferably, a movable base is further arranged below the unit support, and the unit support is connected with the movable base through a support base.
Further preferably, the movable base comprises a plurality of combined movable base units which are arranged in parallel, and the unit supports which are symmetrically arranged are respectively arranged at the same side ends of the combined movable base units.
Preferably, two ends of the movable base are provided with limiting structures.
Preferably, the control valve is connected with the hydraulic upright through a high-pressure rubber pipe.
Preferably, the upper surface of the top beam is provided with a rib structure.
Preferably, the side of the top beam is provided with a clamping groove structure.
Preferably, the top of the hydraulic upright post is detachably connected with the top beam.
Preferably, the bottom of the hydraulic upright post is detachably connected with the bracket base.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a combined hydraulic support for gob-side entry retaining, which can provide a basic supporting structure for the roadway of underground operation by symmetrically arranging unit supports at the two sides of the roadway and selecting a multi-column hydraulic upright structure, simultaneously improves the overall supporting strength of the support, and solves the problem of lower supporting resistance of supporting forms such as single prop, stack type support and the like; in addition, the hydraulic upright column is selected as the support body and is matched with the installation control valve, so that the whole device can be mechanically controlled, the service efficiency of the device is improved, and a safe and green modernized mine operation mode is realized. Therefore, the utility model discloses a combination formula hydraulic support for gob entry, simple structure convenient to use when being used for gob entry soft bottom plate tunnel to strut, can rise the unit support of settling the symmetry tight to strut tunnel roof and bottom plate, promoted safe in utilization and use work efficiency.
Furthermore, a movable base is arranged below the unit support, and the supporting force of the unit support acts on the roadway bottom plate through the movable base, so that the supporting effect of the whole combined type hydraulic support for gob-side entry retaining on the roadway bottom plate is enhanced.
Further, through with the movable base design including a plurality of combination formula movable base units of parallel placement, the cooperation that can be convenient for movable base and unit support is used and the installation adjustment, avoids the artifical waste of unnecessary, improves work efficiency.
Furthermore, the limiting structures are arranged at the two ends of the movable base, so that the unit support can be conveniently used and positioned, and the use efficiency is improved.
Further, through being equipped with the bead structure at back timber upper surface, can increase the effect frictional force of back timber and tunnel roof, make it be difficult for taking place to slide in the use and shift, and then make the whole supporting effect to the tunnel roof of the above-mentioned combination formula hydraulic support that is used for gob entry get a promotion.
Further, the back timber avris is equipped with the draw-in groove structure that is used for moving, combines the unit supporting structure of symmetry simultaneously, can cooperate the single track in the gob entry roadway to hang the use, moves in pairs, can be convenient for the handling in-process with move the device and match, and then promote the holistic transport efficiency of the above-mentioned combination formula hydraulic support that is used for gob entry.
To sum up, the utility model discloses a combination formula hydraulic support for gob entry has following advantage:
1) the gob-side entry retaining roadway integral support is realized, the support resistance is obviously increased, and the control effect on the top plate and the bottom plate of the roadway is good;
2) the combined hydraulic support has the characteristics of simple and convenient operation, convenient carrying and the like, and has strong compatibility with a roadway;
3) the underground working environment is optimized, the working efficiency of workers is improved, and safe, green and efficient production of a working surface is realized;
4) the combined hydraulic support is greatly improved in carrying and mounting efficiency, the labor intensity of workers is reduced, the labor is saved, and the degree of mechanization is increased.
Drawings
Fig. 1 is a schematic use diagram of a combined hydraulic support for gob-side entry retaining in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a unit bracket in an embodiment of the present invention.
Wherein: 1-a unit scaffold; 2-a limit structure; 3-a combined movable base unit; 4-moving a frame mechanical arm; 101-a top beam; 102-hydraulic column; 103-a control valve; 104-a holder base; 105-a ribbed structure; 106-card slot configuration.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The present invention will be described in further detail with reference to the accompanying drawings: the utility model discloses a combination formula hydraulic support for gob entry, including unit support 1 and movable base, specifically include: the left unit support and the right unit support are symmetrically arranged on two sides of the roadway and are respectively arranged at two ends of the movable base.
Referring to fig. 1 and 2, the details are as follows:
1. the left unit support comprises a top beam 101, a support body and a support base 104 which are sequentially arranged from top to bottom, the support body comprises two or more hydraulic upright posts 102 which are uniformly distributed on the support base 104, a control valve 103 is arranged on the support body, a movable base is further arranged below the unit support 1, and the unit support 1 is connected with the movable base through the support base 104. When the support is used, the hydraulic upright posts 102 are lifted by operating the control valve 103, the top beam 101 directly acts on a roadway top plate to play a role in supporting, the support base 104 directly acts on the movable base, and the roadway bottom plate is supported by the movable base. The side of the top beam 101 is provided with a slot structure 106 matched with the moving device.
2. The right unit bracket is similar to the left unit bracket.
3. The concrete size of the movable base can be adjusted according to the requirement of the roadway width, two combined movable base units 3 are a group and are arranged on the roadway bottom plate side by side to form the movable base, and the two ends of the movable base are provided with the limiting devices 2. The left unit support and the right unit support are respectively placed at two ends of the movable base and are respectively connected with the left end and the right end of the movable base through the support base 104, and the supporting force of the unit support 1 acts on the support base 104 through the movable base to play a role of supporting a bottom plate of the support base 104.
4. The left unit support and the right unit support adopt a moving mechanical arm as a moving device 4 to realize the moving and the moving of the moving mechanical arm, the moving mechanical arm is hung on a monorail crane of a roadway roof through a connecting device and moves to the lower part of the unit support 1 through the monorail crane, the unit support 1 is directly supported, and the rapid transportation of the unit support is realized.
The utility model discloses to no coal pillar mining mine gob entry tunnel support, for the supporting movable base of combination formula support a combination formula hydraulic support who is used for gob entry, this combination formula hydraulic support can realize effectively strutting three soft coal seam tunnel soft bottom plates, and its technical performance index satisfies user operation requirement, can satisfy the needs that gob entry tunnel support was kept in the mining area.
When the combined movable base is used, as shown in figure 1, the movable base is firstly paved on a roadway bottom plate, then the left unit support and the right unit support are respectively placed on the left end and the right end of the combined movable base, and the movable base consists of two combined movable base units 3, so that the distance between the combined movable base units 3 is not too small when the combined movable base is paved, and the unit supports are prevented from being placed without space. Meanwhile, limiting devices are arranged at two ends of the movable base, and the laying position of the unit support 1 is prevented from exceeding the control range of the moving support mechanical arm 4.
Specifically, in the present embodiment, the unit bracket 1 selects a two-column hydraulic bracket; the combined movable base units 3 use high-strength Q550 steel plates (the specific size can be adjusted according to the width requirement of a roadway) with the length of 2.8m, the width of 0.8m and the thickness of 8-12cm, and two ends of each combined movable base unit are provided with stop blocks as limiting devices 2; the frame moving mechanical arm 4 consists of a connecting device, a tray device, a telescopic device and a telescopic oil cylinder, is hung on the top plate monorail crane through the connecting device, and is driven by the telescopic oil cylinder to move the tray below a top beam 101 of the unit support 1 so as to directly support the unit support; the top end of the hydraulic upright post 102 is connected with the top beam 101 by a pin shaft, the bracket base 104 is fixed with the movable base by bolts, and the control valve 103 is connected with the hydraulic upright post 102 by a high-pressure rubber pipe to form a hydraulic system.
Based on this, the utility model discloses a combination formula hydraulic support for gob entry, its specific use installation process includes as follows:
1. a group of movable bases (comprising two combined movable base units) are installed at the front end of the roadway in advance, the movable bases 3 are placed flatly, and when the two combined movable base units are placed, the distance of stop blocks on the two combined movable base units in the roadway direction is not less than the width of the movable bases on the unit supports 1 on the two combined movable base units.
2. After the movable base is prepared, a monorail crane is used for dragging the moving mechanical arm to the middle of a combined hydraulic support needing to be carried at the rearmost of the roadway, and the tray is aligned to the center of the top beam 101 of the unit support 1. And connecting high-pressure rubber pipes of two telescopic jacks for controlling the frame moving mechanical arm with a group of frame control valve groups at the front part of the frame to be carried.
3. And operating the control valve 103 to enable the telescopic jacks of the frame moving mechanical arm to extend out simultaneously, and stopping extending when the central positions of the two tray devices are positioned under the top beams 101 of the left and right unit supports and are inosculated with the clamping groove structures on the sides of the top beams 101.
4. And operating the control valve 103, lowering the group of unit supports 1 at the rearmost end, and after the top beams 101 of the left and right support units 1 are contacted with the tray device, continuously operating the control valve 103 to lift the support base 104, and at the moment, continuously lowering the supports to a height suitable for carrying, wherein the carrying height is determined according to the roadway height on site, generally is more than 200mm away from the ground, and reaches and can avoid the height of protruding gangue or sundries and the like on the roadway bottom plate.
5. And operating the control valve 103 to control the arm of the moving frame machine 4 to retract.
6. The monorail crane is controlled to move forwards, and the unit bracket 1 is transported to the center position of the laid movable base.
7. And operating the frame moving mechanical arm 4, extending out of the tray device, controlling balance, and stopping operating the frame moving mechanical arm 4 after the left bracket and the right bracket extend out of proper positions. And then operating an operating valve 103 arranged on the hydraulic upright post 102 in transportation to lift the unit support 1, wherein a support base 104 is firstly contacted with the movable bottom plate, whether the movable bottom plate is righted or not can be manually intervened, and the lifting is continuously carried out after the movable bottom plate is righted until the top beam 101 is contacted with the top plate of the roadway, and the lifting is stopped after the hydraulic upright post 102 in the unit support 1 reaches the initial supporting force.
At this point the bracket completes an installation process.
To sum up, the utility model relates to a colliery is method of three soft coal seams gob entry tunnel support in pit belongs to underworkings support technical field, is particularly useful for gob entry soft bottom plate tunnel support, has solved three soft coal seams gob entry tunnel support and has used support forms such as monomer pillar, buttress type support workman intensity of labour big, the security is low, move inconvenient, the problem that work efficiency is low. The utility model discloses an in the embodiment a combination formula hydraulic support for gob entry include left unit support, right unit support, movable base, move a frame arm isotructure. The movable base is directly placed on a soft bottom plate of a roadway, the left unit support and the right unit support are placed on the movable base, the unit supports are lifted tightly to support the top plate and the bottom plate, and the moving mechanical arm is responsible for integral moving and transporting of the unit supports and the movable base.
The above embodiments are only used for illustrating the present invention and do not limit the technical solution described in the present invention; thus, while the present invention has been described in detail with reference to the various embodiments thereof, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted; all technical solutions and modifications which do not depart from the spirit and scope of the present invention should be construed as being included in the scope of the claims of the present invention.
The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.
Claims (9)
1. A combined hydraulic support for a gob-side entry retaining is characterized by comprising unit supports (1) symmetrically arranged on two sides of a roadway, wherein each unit support (1) comprises a top beam (101), a support body and a support base (104) which are sequentially arranged from top to bottom;
the support comprises a support body, a support base and a support base, wherein the support body comprises two or more hydraulic upright posts (102) which are uniformly distributed on the support base (104); the bracket body is provided with a control valve (103) for controlling the lifting of the hydraulic upright post (102).
2. The combined hydraulic support for gob-side entry retaining according to claim 1, wherein a movable base is further provided below the unit support (1), and the unit support (1) is connected with the movable base through a support base (104).
3. The combined hydraulic support for gob-side entry retaining according to claim 2, wherein the movable base comprises a plurality of combined movable base units (3) arranged in parallel, and the symmetrically arranged unit supports (1) are respectively arranged at the same side ends of the combined movable base units (3).
4. The combined hydraulic support for gob-side entry retaining according to claim 1, wherein the movable base is provided with a limiting structure (2) at both ends.
5. Combined hydraulic prop for gob-side entry according to claim 1, characterized in that the control valve (103) is connected to the hydraulic upright (102) by means of a high-pressure hose.
6. Combined hydraulic prop for gob-side entry according to claim 1, characterized in that the upper surface of the top beam (101) is provided with a ridge structure (105).
7. The combined hydraulic support for gob-side entry retaining according to claim 1, wherein the side of the top beam (101) is provided with a slot structure (106).
8. The combined hydraulic support for gob-side entry according to claim 1, wherein the top of the hydraulic column (102) is removably connected to the top beam (101).
9. The modular hydraulic support for gob-side entry according to claim 1 wherein the bottom of the hydraulic column (102) is removably attached to the support base (104).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020949655.4U CN212406774U (en) | 2020-05-29 | 2020-05-29 | Combined hydraulic support for gob-side entry retaining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020949655.4U CN212406774U (en) | 2020-05-29 | 2020-05-29 | Combined hydraulic support for gob-side entry retaining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212406774U true CN212406774U (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020949655.4U Active CN212406774U (en) | 2020-05-29 | 2020-05-29 | Combined hydraulic support for gob-side entry retaining |
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| Country | Link |
|---|---|
| CN (1) | CN212406774U (en) |
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- 2020-05-29 CN CN202020949655.4U patent/CN212406774U/en active Active
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