CN213540452U - Coal cleaning device behind mining caving coal hydraulic support frame - Google Patents
Coal cleaning device behind mining caving coal hydraulic support frame Download PDFInfo
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- CN213540452U CN213540452U CN202022761877.6U CN202022761877U CN213540452U CN 213540452 U CN213540452 U CN 213540452U CN 202022761877 U CN202022761877 U CN 202022761877U CN 213540452 U CN213540452 U CN 213540452U
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Abstract
The utility model belongs to the technical field of the mine supporting system, a clear coal device behind mining caving coal hydraulic support frame is disclosed, connecting rod movable mounting is on the support base of caving coal hydraulic support behind the support, connecting rod welded mounting has the fixed otic placode of pushing coal jack and the fixed otic placode of pushing coal board respectively behind support base and the support, and movable mounting has the pushing coal jack on the fixed otic placode of pushing coal jack, and the end of pushing coal jack passes through pushing coal jack fixed pin axle and fastener movable mounting at the middle part of pushing coal board, and the upper end of pushing coal board is through the fixed otic placode movable mounting of pushing coal board fixed pin axle and fastener and pushing coal board. The utility model can solve the problem that the rear scraper conveyor is not moved in place due to accumulated coal, accumulated waste rock, a large amount of float coal accumulation and the like after the mining top coal caving hydraulic support frame; the labor intensity of coal cleaning work after the manual frame can be effectively reduced, and the number of maintenance personnel on the working face is reduced.
Description
Technical Field
The utility model belongs to the technical field of the mine supporting system, especially, relate to a clear coal device behind mining caving coal hydraulic support frame.
Background
At present, a top coal caving hydraulic support is mainly used for surrounding rock supporting protection on a coal mining fully-mechanized caving working face in the industry, but the existing mature top coal caving hydraulic support easily causes phenomena such as large blocks of accumulated coal and accumulated waste rock behind the support, and large quantities of float coal are accumulated and pressed in the coal caving process, so that the phenomenon that the support is normally pulled and shifted to cause serious influence is often caused, the phenomenon that the support is not pulled and shifted to the right position is caused, and the extrusion and the deformation of a tail beam jack are caused to be frequent, so that the rear coal caving efficiency is influenced.
In recent years, the following researches are made on the coal cleaning solution of the hydraulic support by various domestic research institutions, colleges and universities and enterprises. 6 months 2012, the Beijing university of science and technology vehicle engineering institute has designed a 4 ~ 8m sharp inclined coal seam caving coal frame back coal cleaning device scheme for the open-air coal industry of Hoshin river of Negmo, and this scheme is proposed to horizontal segmentation big gun face, is not suitable for the clear coal behind the full-mechanized caving face frame. In 2019, 4 months, a device for cleaning float coal of an advance hydraulic support is provided by Tiandi science and technology limited company and Chinese coal science and industry group limited company, is suitable for cleaning float coal, broken gangue and other sundries in front of the advance hydraulic support of a roadway underground, and is not suitable for cleaning coal after a fully mechanized caving face frame.
The traditional solution to the problem is to manually clean coal after shutdown, but because of the characteristics of large volume of accumulated coal and accumulated gangue, heavy weight, narrow space for coal cleaning operation, inconvenient operation of personnel and the like, the coal cleaning is not thorough or timely, equipment is damaged, the shutdown of a working face is forced, and the coal mining efficiency is severe. In addition, the risk of manual coal cleaning after the support is high, and the coal mine safety management is inconvenient.
Through the above analysis, the problems and defects of the prior art are as follows:
the existing coal cleaning after the fully mechanized caving face frame adopts manual coal cleaning after shutdown, which often causes the shutdown of the working face and serious coal mining efficiency due to incomplete or untimely coal cleaning to cause equipment damage. In addition, the risk of manual coal cleaning after the support is high, and the coal mine safety management is inconvenient.
The difficulty in solving the above problems and defects is:
the coal discharge often has the extrusion and the smashing injury of all equipment in the space caused by the large blocks of accumulated coal and accumulated gangue, and the coal cleaning device after the frame has the characteristics of high reliability, simple structure, automatic operation, high safety and the like due to the narrow space of the coal cleaning operation and the difficulty in equipment maintenance and repair.
The significance of solving the problems and the defects is as follows:
the problem that the back sliding cannot be in place due to the accumulation of large blocks of accumulated coal, accumulated waste rocks and accumulated float coal after the hydraulic support frame for caving the top coal of the fully mechanized coal mining face can be solved, the system control can be integrated into an intelligent control system of the fully mechanized coal mining face for use, and the hydraulic support frame has the advantages of being simple in structure, reliable in performance, convenient to operate and the like.
SUMMERY OF THE UTILITY MODEL
The problem that exists to prior art, the utility model provides a safe and reliable, simple structure, convenient operation's clear coal device behind mining caving coal hydraulic support frame to solve traditional caving coal hydraulic support and cause big bold long-pending coal in the back of the frame, long-pending waste rock easily at the caving in-process, phenomenon such as a large amount of float coals overstock often can appear pulling and move rear scraper conveyor not in place, the frequent problem of tail boom jack extrusion deformation.
The utility model discloses a realize like this, clear coal device behind mining caving coal hydraulic support frame is provided with:
a bracket rear connecting rod;
the coal pushing device comprises a support, a coal pushing jack fixing lug plate, a coal pushing jack fixing pin shaft, a coal pushing;
and a coal pushing plate fixing lug plate is welded on the side surface of the rear connecting rod of the bracket and is connected with the upper end of the coal pushing plate through a coal pushing plate fixing pin shaft and a fastener.
Furthermore, a rubber tube and an auxiliary are communicated with the coal pushing jack, and a one-way lock is arranged on the rubber tube and the auxiliary.
Further, the rubber tube and the auxiliary piece transmit the hydraulic pressure of the hydraulic system to a lower cavity of a coal pushing jack, the coal pushing jack extends out to drive the coal pushing plate to rotate, and the coal pushing plate pushes accumulated coal, accumulated waste rock and a large amount of float coal behind the bracket frame to a rear scraper conveyor to be transported out of a working face.
Further, rubber tube and accessory transmit hydraulic pressure force of hydraulic system to pushing away the very epicoele of coal, it stretches out to drive to push away the coal jack the coal pushing plate is rotatory, the coal pushing plate resets, the one-way lock pins push away the very jack cavity of coal, prevents to push away the very abnormal extension of coal jack.
Combine foretell all technical scheme, the utility model discloses the advantage that possesses and positive effect are:
compared with the traditional support frameless rear coal cleaning device, the utility model can solve the problem that the rear scraper conveyor is not pulled and moved in place due to coal accumulation, waste rock accumulation, a large amount of float coal accumulation and the like after the hydraulic support frame for the mine caving coal; the labor intensity of coal cleaning work after the manual frame can be effectively reduced, and the number of maintenance personnel on the working face is reduced; the maintenance time of the shutdown of the working face caused by coal cleaning after the frame can be obviously shortened; the hydraulic support can better adapt to the intelligent control mining requirement of the intelligent fully mechanized caving face; the problem that large blocks of accumulated coal, accumulated waste rocks and a large amount of accumulated float coal crush the tail beam jack and other parts to a certain extent can be solved, the service life of the tail beam jack is prolonged, the reliability and the competitiveness of the support in operation are improved, the cost is low, the application value and the social benefit are high, the market prospect is wide, and the popularization and the application are convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a coal cleaning device behind a mining caving coal hydraulic support frame provided by the embodiment of the utility model.
Fig. 2 is a schematic view of the coal discharge state of the coal cleaning device behind the hydraulic support frame for caving coal provided by the embodiment of the utility model.
Fig. 3 is a schematic view of the coal discharge completion state of the coal cleaning device behind the hydraulic support frame for caving coal provided by the embodiment of the utility model.
Fig. 4 is a schematic view of a coal cleaning state of a coal cleaning device behind a hydraulic support frame for caving coal provided by the embodiment of the utility model.
In the figure: 1. hydraulic support for caving coal; 2. a one-way lock; 3. the coal pushing jack fixes the lug plate; 4. a coal pushing jack; 5. the coal pushing plate is fixed with the lug plate; 6. the coal pushing plate is used for fixing the pin shaft and the fastener; 7. the coal pushing jack fixes the pin shaft and the fastener; 8. a coal pushing plate; 9. rubber tubes and accessories; 10. a bracket rear connecting rod; 11. a bracket base; 12. a post-frame coal cleaning device; 13. large blocks of accumulated coal, accumulated gangue and a large amount of accumulated float coal; 14. coal flow during coal discharge; 15. a rear flight conveyor.
Fig. 5 is a parameter diagram of a jhqm.00-01 ear plate according to an embodiment of the present invention.
Fig. 6 is a parameter diagram of a jhqm.00-02 ear plate according to an embodiment of the present invention.
Fig. 7 is a parameter diagram of a jhqm.00-03 ear plate according to an embodiment of the present invention.
Fig. 8 is a parameter diagram of a jhqm.01 coal pushing plate according to an embodiment of the present invention.
Fig. 9 is a jhqm.50 coal-pushing jack parameter diagram according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
To the problem that prior art exists, the utility model provides a clear coal device behind mining caving coal hydraulic support frame, it is right to combine the attached drawing below the utility model discloses do detailed description.
As shown in fig. 1 to 4, a support rear connecting rod 10 of the coal cleaning device behind the mining top coal caving hydraulic support frame provided by the embodiment of the utility model is movably mounted on a support base 11 of the top coal caving hydraulic support 1, a coal pushing jack fixing lug plate 3 is welded on the support base 11, a coal pushing jack 4 is movably mounted on the coal pushing jack fixing lug plate 3, and the tail end of the coal pushing jack 4 is movably mounted in the middle of a coal pushing plate 8 through a coal pushing jack fixing pin shaft and a fastener 7; the side surface of the rear connecting rod 10 of the bracket is welded with a coal pushing plate fixing lug plate, and the coal pushing plate fixing lug plate is connected with the upper end of the coal pushing plate through a coal pushing plate fixing pin shaft and a fastener.
During installation, the coal pushing plate 8 is hinged to the rear connecting rod 10 of the support through a coal pushing plate fixing pin shaft and a fastening piece 6, the coal pushing jack 4 is fixed to the support base 1 and the coal pushing plate fixing lug plate 5 of the coal pushing plate 8 through a coal pushing jack fixing pin shaft and a fastening piece 7, and finally the one-way lock 2, the rubber tube and the auxiliary piece 9 are connected between an electro-hydraulic control reversing valve (or a manual control valve) of the support and the coal pushing jack 4, so that the coal cleaning device behind the mining top coal caving hydraulic support is realized.
The hydraulic control system comprises a one-way lock, a rubber pipe and an auxiliary part, and is directly connected to the electro-hydraulic control reversing valve (or a manual operation valve) of the frame. And then the coal cleaning device 12 behind the frame is used for pushing the large blocks of accumulated coal, accumulated waste rock and a large amount of accumulated float coal 13 to the rear scraper conveyor 15 to be conveyed out of the working surface, so that the problems that the rear scraper conveyor cannot be pulled to a position and the tail beam jack is frequently extruded and deformed due to the frequent phenomena of the large blocks of accumulated coal, accumulated waste rock, accumulated float coal and the like behind the frame are solved.
After the top coal hydraulic support is completely put, large blocks of accumulated coal, accumulated waste rocks and a large amount of accumulated float coal can be generated in front of the rear scraper conveyor. The electric hydraulic control reversing valve (or the manual control valve) of the support is operated to supply liquid to the lower cavity of the coal pushing jack 4, the coal pushing jack 4 extends out to drive the coal pushing plate to push out, and the large accumulated coal, the accumulated waste rock and the large accumulated pressure float coal in front of the rear scraper conveyor are pushed onto the rear scraper conveyor and are conveyed out of the working face under the action of the rear scraper conveyor. In the process of extending the coal pushing jack 4, the one-way lock 2 can avoid the backflow of the working fluid, and the normal extension of the coal pushing jack 4 is ensured. After the large blocks of accumulated coal, accumulated waste rock and a large amount of accumulated float coal are cleaned, the bracket electrohydraulic controlled reversing valve (or the manual control valve) is operated to supply liquid to the upper cavity of the coal pushing jack 4, the coal pushing jack 4 is retracted to drive the coal pushing plate to be retracted, and therefore the large blocks of accumulated coal, accumulated waste rock and a large amount of accumulated float coal after the bracket is cleaned.
The invention is further described with reference to specific examples.
Fig. 5 is a parameter diagram of a jhqm.00-01 ear plate according to an embodiment of the present invention.
Fig. 6 is a parameter diagram of a jhqm.00-02 ear plate according to an embodiment of the present invention.
Fig. 7 is a parameter diagram of a jhqm.00-03 ear plate according to an embodiment of the present invention.
Fig. 8 is a parameter diagram of a jhqm.01 coal pushing plate according to an embodiment of the present invention.
Fig. 9 is a jhqm.50 coal-pushing jack parameter diagram according to an embodiment of the present invention.
The utility model discloses in, the base: integral rigid base (series), rear link: rigid single connecting rod (series), coal jack fixed lug plate: JHQM.00-03, coal pushing plate fixing lug plates JHQM.00-01 and JHQM.00-02, and coal pushing plates: JHQM.01, pin shaft and fastener 6: the pin shaft phi is 40 multiplied by 105, the D-shaped pin TX-40 and the coal pushing jack: JHQM.50, one-way lock FDD200/50, hose and accessory 9: 4SP-DN10-62/1600, 4SP-DN10-62/600 and U-card UD-10.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be covered within the protection scope of the present invention by those skilled in the art within the technical scope of the present invention.
Claims (4)
1. The utility model provides a clear coal device behind mining caving coal hydraulic support frame which characterized in that, clear coal device behind mining caving coal hydraulic support frame is provided with:
a bracket rear connecting rod;
the support rear connecting rod is movably arranged on a support base of the top coal caving hydraulic support, and the side surface of the support rear connecting rod is movably connected with the upper end of the coal pushing plate;
the coal pushing device is characterized in that a coal pushing jack is movably mounted on the rear side of the support base, and the tail end of the coal pushing jack is movably mounted in the middle of the coal pushing plate through a coal pushing jack fixing pin shaft and a fastening piece.
2. The mining hydraulic prop stand rear coal cleaning device of the caving coal of claim 1, wherein a coal pushing jack fixing lug plate is welded to the rear side of the prop stand base, and the coal pushing jack is movably connected to the coal pushing jack fixing lug plate.
3. The mining hydraulic prop stand rear coal cleaning device according to claim 1, wherein a coal pushing plate fixing lug plate is welded to a side surface of the prop stand rear connecting rod, and an upper end of the coal pushing plate is connected with the coal pushing plate fixing lug plate through a coal pushing plate fixing pin shaft and a fastening piece.
4. The mining top coal caving hydraulic support frame rear coal cleaning device according to claim 1, wherein a rubber tube and an auxiliary are communicated with the coal pushing jack, and a one-way lock is installed on the rubber tube and the auxiliary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022761877.6U CN213540452U (en) | 2020-11-25 | 2020-11-25 | Coal cleaning device behind mining caving coal hydraulic support frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022761877.6U CN213540452U (en) | 2020-11-25 | 2020-11-25 | Coal cleaning device behind mining caving coal hydraulic support frame |
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| CN213540452U true CN213540452U (en) | 2021-06-25 |
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| CN202022761877.6U Active CN213540452U (en) | 2020-11-25 | 2020-11-25 | Coal cleaning device behind mining caving coal hydraulic support frame |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482675A (en) * | 2021-06-29 | 2021-10-08 | 中国矿业大学 | Device and method for cleaning and recovering float coal behind caving coal support frame |
| CN114017026A (en) * | 2021-11-08 | 2022-02-08 | 兖州煤业股份有限公司 | Front conveyor tail coal cleaning protection device |
-
2020
- 2020-11-25 CN CN202022761877.6U patent/CN213540452U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482675A (en) * | 2021-06-29 | 2021-10-08 | 中国矿业大学 | Device and method for cleaning and recovering float coal behind caving coal support frame |
| CN114017026A (en) * | 2021-11-08 | 2022-02-08 | 兖州煤业股份有限公司 | Front conveyor tail coal cleaning protection device |
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