CN213088039U - Two-column type transition support for fully mechanized coal mining face in underground coal mine - Google Patents
Two-column type transition support for fully mechanized coal mining face in underground coal mine Download PDFInfo
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- CN213088039U CN213088039U CN202021960907.XU CN202021960907U CN213088039U CN 213088039 U CN213088039 U CN 213088039U CN 202021960907 U CN202021960907 U CN 202021960907U CN 213088039 U CN213088039 U CN 213088039U
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- jack
- back timber
- tail
- base
- sides
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 24
- 239000003245 coal Substances 0.000 title claims description 24
- 238000005065 mining Methods 0.000 title claims description 13
- 210000003128 Head Anatomy 0.000 description 3
- 210000001331 Nose Anatomy 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 210000000887 Face Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a colliery is combined in pit and is adopted working face two column type transition support, including base, back timber and tail boom, the back timber is located directly over the base, and base top a symmetric both sides tip all articulates there is the stand, two the stand top articulates respectively in back timber bottom a symmetric both sides, and tail boom one end articulates in back timber one end, the first fixed block of the equal fixedly connected with of base top a symmetric both sides center department, and two opposite sides of first fixed block all rotate and be connected with down the connecting rod, the connecting rod top is rotated and is connected with connecting rod and balanced jack down, and two go up the connecting rod top and articulate respectively in back timber bottom a symmetric both sides. The utility model discloses fundamentally has solved four column type hydraulic support because the atress is unbalanced to lead to strutting the resistance and descends, and the support is died and is pulled the problem of moving the difficulty, and the resistance of strutting of consequently support obtains whole performance, has both improved the utilization ratio of support resistance, has improved the stable form of support again.
Description
Technical Field
The utility model relates to a colliery coal mining technology field especially relates to colliery is combined in pit and is adopted working face two column type transition supports.
Background
From the beginning of the last 90 th century to the beginning of the century, most of hydraulic supports of underground fully mechanized coal mining faces of coal mines in China are four-column hydraulic supports. From the beginning of the century (about 2010), a two-column hydraulic support is designed and is tried to be applied to a fully mechanized coal mining face under a coal mine.
When the existing two-column hydraulic support is used as a transition support on the premise that the support type is not modified, the appearance structures of the front and rear scraper conveyor heads and the tail driving part installed in the space are larger due to small rear space, and the two-column hydraulic support is often interfered with a support tail beam. After the working face is pressed, the tail beam of the transition support falls and is pressed on the driving part, so that the driving part is damaged, even the explosion-proof box of the motor is crushed to cause explosion loss, and huge hidden danger is brought to safety production.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a coal mine underground fully-mechanized coal mining face two-column type transition support.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a coal mine underground fully-mechanized mining working face two-column type transition support comprises a base, a top beam and a tail beam, wherein the top beam is positioned right above the base, two symmetrical two-side ends of the top of the base are hinged with stand columns, the tops of the two stand columns are respectively hinged with two symmetrical sides of the bottom of the top beam, one end of the tail beam is hinged with one end of the top beam, first fixed blocks are fixedly connected with the centers of the two symmetrical sides of the top of the base, opposite sides of the two first fixed blocks are respectively and rotatably connected with a lower connecting rod, the top end of the lower connecting rod is rotatably connected with an upper connecting rod and a balance jack, the top ends of the two upper connecting rods are respectively hinged with two symmetrical sides of the bottom of the top beam, second fixed blocks are respectively welded on two symmetrical sides of the bottom of the top beam, the top ends of the two balance jacks are, and the output end of the tail beam jack is hinged to a symmetrical side face at the bottom of the tail beam.
Preferably, the welding of the one end that the tail boom was kept away from to the back timber has the front beam, and front beam bottom sliding connection has flexible roof beam, flexible roof beam one end is passed the front beam and is kept away from the one end of back timber, one side that the front beam is close to the back timber articulates there is flexible roof beam jack, and the output of flexible roof beam jack articulates in the one end that flexible roof beam is close to the back timber.
Preferably, one end of the telescopic beam, which is far away from the top beam, is hinged with a side protection plate, a side protection plate jack is hinged inside the telescopic beam, and the output end of the side protection plate jack is hinged at the center of the bottom of the side protection plate.
Preferably, the end of the tail beam, far away from the top beam, is connected with an inserting plate in a sliding manner, an inserting plate jack is arranged in the tail beam, and the output end of the inserting plate jack is hinged to one end of the inserting plate.
Preferably, a pushing jack is installed inside the base and arranged in parallel to the base.
The utility model has the advantages that:
1. the utility model discloses, through the setting of two stands, the coal seam roof pressure load that the back timber received is whole to be supported by two stands, and fundamentally has solved four column type hydraulic support because the atress is unbalanced to lead to strutting the resistance decline, and the support is died and is pulled the problem of moving the difficulty, therefore the support strut resistance obtains whole performance, has both improved the utilization ratio of support resistance, has improved the stable form of support again.
2. The utility model discloses, through the setting of two stands that increase the cylinder diameter, kept the supporting resistance of original four-column type transition hydraulic support, consequently strut the resistance and do not change along with the change of frame type structure, guaranteed the same supporting resistance, further improved the stability of support, and become two stands by four stands, frame type simple structure, the operation is simple and easy convenient, realize electric hydraulic control and automated control easily.
3. The utility model discloses, adopt positive four-bar linkage setting through upper connecting rod and lower connecting rod, connecting rod intensity increases, the support resistance of support has been improved, and the top and the back timber of upper connecting rod are connected, the holding power of support back timber to the coal seam roof has been increased, two tail boom jacks have been increased between base and the tail boom in addition, the connection of tail boom and base has both been solved, the problem of strutting when the tail boom comes to press the working face rear portion roof plate has been realized, the rear portion space of support has been increased again, scrape the trigger aircraft nose for the rear portion, the trigger aircraft nose is scraped to the rear portion after installation and the coal-winning machine of tail drive division accomplish the coal cutting, tail drive division draws forward and moves and provides sufficient space.
Drawings
Fig. 1 is a schematic structural diagram of a two-column type transition support of a fully mechanized mining face in a coal mine well according to the utility model.
In the figure: 1 base, 2 upright posts, 3 top beams, 4 telescopic beam jacks, 5 side protection plate jacks, 6 side protection plates, 7 telescopic beams, 8 front beams, 9 tail beams, 10 insertion plates, 11 insertion plate jacks, 12 upper connecting rods, 13 tail beam jacks, 14 pushing jacks, 15 lower connecting rods and 16 balance jacks.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely 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.
Referring to fig. 1, the two-column transition support for the fully mechanized mining face in a coal mine underground comprises a base 1, a top beam 3 and a tail beam 9, wherein the top beam 3 is positioned right above the base 1, two symmetrical side ends of the top of the base 1 are hinged with upright columns 2, the cylinder diameters of the two upright columns 2 are larger than those of the four-column type, the tops of the two upright columns 2 are respectively hinged with two symmetrical sides of the bottom of the top beam 3, one end of the tail beam 9 is hinged with one end of the top beam 3, the centers of the two symmetrical sides of the top of the base 1 are fixedly connected with first fixed blocks, the opposite sides of the two first fixed blocks are respectively and rotatably connected with lower connecting rods 15, the top ends of the lower connecting rods 15 are rotatably connected with upper connecting rods 12 and balance jacks 16, the top ends of the two upper connecting rods 12 are respectively hinged with two symmetrical sides of the bottom of the top beam 3, the two, two ends of the top of the base 1, which are far away from the upright post 2, are hinged with tail beam jacks 13, and the output ends of the tail beam jacks 13 are hinged with a symmetrical side face of the bottom of the tail beam 9.
In the utility model, a front beam 8 is welded at one end of the top beam 3 far from the tail beam 9, a telescopic beam 7 is connected at the bottom of the front beam 8 in a sliding way, one end of the telescopic beam 7 passes through one end of the front beam 8 far from the top beam 3, a telescopic beam jack 4 is hinged at one side of the front beam 8 near the top beam 3, the output end of the telescopic beam jack 4 is hinged with one end of the telescopic beam 7 close to the top beam 3, one end of the telescopic beam 7 far away from the top beam 3 is hinged with a side protection plate 6, a side protection plate jack 5 is hinged in the telescopic beam 7, the output end of the side protection plate jack 5 is hinged at the center of the bottom of the side protection plate 6, an inserting plate 10 is connected in a sliding way at one end of the tail beam 9 far away from the top beam 3, and the tail beam 9 is internally provided with a plug board jack 11, the output end of the plug board jack 11 is hinged at one end of a plug board 10, the base 1 is internally provided with a pushing jack 14, and the pushing jack 14 is arranged in parallel to the base 1.
The working principle is as follows: in practical use, by arranging the two upright posts 2, the pressure load of the coal bed top plate borne by the top beam 3 is supported by the two upright posts 2, so that the problems that the support resistance is reduced and the support is difficult to be pressed and pulled due to unbalanced stress of a four-post hydraulic support are solved fundamentally, the support resistance of the support is exerted completely, the utilization rate of the support resistance is improved, the stability of the support is improved, the support resistance of the original four-post transition hydraulic support is kept by arranging the two upright posts 2 with enlarged cylinder diameters, the support resistance is not changed along with the change of a frame structure, the same support resistance is ensured, the stability of the support is further improved, the four upright posts are changed into the two upright posts 2, the frame structure is simple, the operation is simple and convenient, the electro-hydraulic control and the automatic control are easy to realize, the upper connecting rod 12 and the lower connecting rod 15 are arranged by adopting the positive four connecting rods, the connecting rod intensity increases, the support resistance of support has been improved, and the top and the back timber 3 of upper connecting rod 12 are connected, the holding power of support back timber 3 to the coal seam roof has been increased, two tail boom jacks 13 have been increased between base 1 and the tail boom 9 in addition, the connection of tail boom 9 and base 1 has both been solved, the problem of strutting when tail boom 9 comes to press the working face rear portion roof panel has been realized, the rear portion space of support has been increased again, scrape the trigger head for the rear portion, the trigger head is scraped to the rear portion after the installation of tail drive division and coal-winning machine completion cut coal, tail drive division draws forward and moves and provides sufficient space.
Having shown and described the basic principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof, and it is therefore intended that the embodiments be considered as exemplary and not limiting in any way, since the scope of the invention is defined by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein and are therefore not to be embraced therein by any reference numerals in the claims.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. Colliery is two post type transition supports of working face that combines in pit, including base (1), back timber (3) and tail-boom (9), its characterized in that, back timber (3) are located directly over base (1), and base (1) top symmetrical both sides tip all articulates there are stand (2), two stand (2) top articulates respectively in back timber (3) bottom symmetrical both sides, and tail-boom (9) one end articulates in back timber (3) one end, base (1) top symmetrical both sides center department all fixedly connected with first fixed block, and two opposite sides of first fixed block all rotate and are connected with down connecting rod (15), connecting rod (15) top rotates and is connected with upper connecting rod (12) and balanced jack (16) down, and two upper connecting rod (12) tops articulate respectively in back timber (3) bottom symmetrical both sides, second fixed block has been welded respectively to back timber (3) bottom symmetrical both sides, and two balance jack (16) tops rotate respectively to be connected in the opposite both sides of two second fixed blocks, the both ends that stand (2) were kept away from at base (1) top all articulate there is tail beam jack (13), and the output of two tail beam jack (13) articulates in tail beam (9) bottom a symmetrical side.
2. The coal mine underground fully mechanized mining face two-column type transition support frame according to claim 1, wherein a front beam (8) is welded at one end of the top beam (3) far away from the tail beam (9), a telescopic beam (7) is connected to the bottom of the front beam (8) in a sliding mode, one end of the telescopic beam (7) penetrates through one end of the front beam (8) far away from the top beam (3), a telescopic beam jack (4) is hinged to one side, close to the top beam (3), of the front beam (8), and an output end of the telescopic beam jack (4) is hinged to one end, close to the top beam (3), of the telescopic beam (7).
3. The coal mine underground fully mechanized mining face two-column type transition support frame according to claim 2, wherein one end of the telescopic beam (7) far away from the top beam (3) is hinged with a side protection plate (6), a side protection plate jack (5) is hinged inside the telescopic beam (7), and an output end of the side protection plate jack (5) is hinged at the center of the bottom of the side protection plate (6).
4. The coal mine underground fully mechanized mining face two-column type transition support frame according to claim 3, wherein an inserting plate (10) is connected to one end, far away from the top beam (3), of the interior of the tail beam (9) in a sliding mode, an inserting plate jack (11) is installed in the tail beam (9), and an output end of the inserting plate jack (11) is hinged to one end of the inserting plate (10).
5. The coal mine underground fully mechanized mining face two-column type transition support frame according to claim 4, characterized in that a pushing jack (14) is installed inside the base (1), and the pushing jack (14) is arranged in parallel with the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021960907.XU CN213088039U (en) | 2020-09-09 | 2020-09-09 | Two-column type transition support for fully mechanized coal mining face in underground coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021960907.XU CN213088039U (en) | 2020-09-09 | 2020-09-09 | Two-column type transition support for fully mechanized coal mining face in underground coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213088039U true CN213088039U (en) | 2021-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021960907.XU Active CN213088039U (en) | 2020-09-09 | 2020-09-09 | Two-column type transition support for fully mechanized coal mining face in underground coal mine |
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| Country | Link |
|---|---|
| CN (1) | CN213088039U (en) |
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- 2020-09-09 CN CN202021960907.XU patent/CN213088039U/en active Active
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