CN214424530U - Fully-mechanized mining working surface gate-groove crawler traveling type forepoling - Google Patents
Fully-mechanized mining working surface gate-groove crawler traveling type forepoling Download PDFInfo
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- CN214424530U CN214424530U CN202120455963.6U CN202120455963U CN214424530U CN 214424530 U CN214424530 U CN 214424530U CN 202120455963 U CN202120455963 U CN 202120455963U CN 214424530 U CN214424530 U CN 214424530U
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Abstract
The utility model discloses a combine and adopt working face crossheading track walking leading support, a serial communication port, including a pair of crawler-type chassis, be equipped with the connecting plate between a pair of crawler-type chassis, the connecting plate both ends are fixed with the stand of liftable respectively, and connecting plate central authorities are connected with the back timber bottom through four-bar linkage, and the stand top is equipped with the back timber, the arbitrary one end outside cover in crawler-type chassis is equipped with hydraulic walking mechanism, and hydraulic walking mechanism is connected with hydraulic power unit through advancing back liquid pipe, it is equipped with the hydraulic walking mechanism operating valve that is used for controlling the motion of crawler-type chassis on the liquid pipe to advance back liquid. The utility model provides a current support exist to connect the top rate not high, walking direction limitation, bottom plate adaptability not strong and the easy oblique problem. The utility model discloses strut intensity height, be convenient for operation and can reduction in production cost.
Description
Technical Field
The utility model relates to an advance support, concretely relates to combine and adopt working face crossheading track walking type advance support.
Background
The characteristics of stable coal seam, approximately horizontal inclination angle, approximately 420-510 m buried depth, sedimentary rock roof, thick sand washing and covering and compact and hard coal seam in the three-panel area of the same coal Tang-Tashan determine the particularity of roof rock stratum breaking movement in the coal seam mining process. The on-site mine pressure observation of the fully mechanized mining face shows that the mine pressure of the longwall fully mechanized mining face appears quite violently, and the method is mainly characterized in that the mine pressure of the working face shows that the overlying bedrock of the coal seam collapses rapidly, the roof sinks in steps, and the mine pressure phenomenon is strong. When the pressure is applied periodically, the pressure of the crossheading at two sides is relatively strong, the rib caving, the bottom drum and the coal wall explosion rib are serious, and the maintenance is difficult under special conditions, which all affect one of the production links of the coal face and are also one of the places where accidents happen on the face; how to safely and efficiently support the end of the working face in advance is one of important ways for improving the production efficiency, and the application of the end and the advance support to the fully mechanized mining working face well solves the problem of end support. The advanced support length of the tail roadway end of the fully mechanized mining working face is 40m in the same coal Tang-Tashan three-panel mountain 4# layer 8307, and a roof is supported by adopting a one-beam three-column support process (the model of a single hydraulic support is DW 40-300/110X) of the traditional single hydraulic support and metal hinged top beam support process. The supporting method has the following problems: firstly, strut the intensity low, the hydraulic prop bores the end volume greatly, and the withdrawal difficulty can not reach when roof pressure is great and strut intensity, leads to the roof of working face safety exit to sink even the roof falls. Secondly, the supporting speed is slow, and if the supporting state of the end head is not good, the high-speed propulsion of the fully mechanized coal mining face cannot be ensured. Thirdly, because the single hydraulic prop is erected and retracted manually, the use of personnel is more, the labor intensity is high, and personal safety accidents are easy to happen. Fourthly, the consumption of the support is large, the supporting cost is high, and the supporting strength is reduced due to the fact that liquid leakage and liquid leakage are easily caused after the support breaks down.
Disclosure of Invention
In order to overcome the defects that the existing support has the defects of low roof contact rate, limitation of walking direction, poor bottom plate adaptability, easy deflection and the like, the utility model provides a fully mechanized mining face crossheading crawler traveling type forepoling which has high supporting strength, is convenient for operation and can reduce the production cost.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is:
the utility model provides a combine and adopt working face crossheading track walking type leading support, includes a pair of crawler-type chassis, is equipped with the connecting plate between a pair of crawler-type chassis, and the connecting plate both ends are fixed with the stand of liftable respectively, and connecting plate central authorities are connected with the back timber bottom through four-bar linkage, and the stand top is equipped with the back timber, the arbitrary one end outside cover of crawler-type chassis is equipped with hydraulic walking mechanism, and hydraulic walking mechanism is connected with hydraulic power unit through advancing back liquid pipe, it is equipped with the hydraulic walking mechanism operating valve that is used for controlling crawler-type chassis motion on the liquid pipe to advance back.
Further, crawler-type chassis includes the track, is equipped with the drive wheel in the inboard one end of track, and the other end is equipped with big bearing wheel, is equipped with little bearing wheel between drive wheel and the big bearing wheel, and little bearing wheel is located track central point department top and is equipped with bearing wheel, and little bearing wheel, big bearing wheel and drive wheel are all fixed on the base skeleton through the pivot, are located the cover in the pivot in the drive wheel outside and are equipped with hydraulic running gear.
Preferably, a connecting plate is arranged between the inner sides of the base frameworks.
Furthermore, the four-bar mechanism comprises two bottom connecting rods positioned at the bottom, a top connecting rod positioned at the top and a fixing clamp plate for fixing the bottoms of the two bottom connecting rods, the two bottom connecting rods are respectively fixed between the fixing clamp plates positioned at the top of the center of the connecting plate through pin shafts, one end of the top connecting rod is fixed on the fixing part at the bottom of the top beam through a pin shaft, and the clamp plate at the other end of the top connecting rod is respectively connected with the two bottom connecting rods through a pin shaft.
Furthermore, the fixing part comprises a pair of clamping plates, a mounting plate is fixed between the clamping plates through bolts, and two sides of the mounting plate are located between the clamping arms and connected with the clamping arms through pin shafts.
Preferably, the stand is a hydraulic stand, the bottom of the hydraulic stand is fixed on a support table of a connecting plate, the top of the hydraulic stand is fixed on a steel plate at the bottom of the top beam through bolts, the hydraulic stand is connected with a hydraulic pump station through a liquid inlet and return pipe, and a hydraulic stand operating valve used for lifting the hydraulic stand is arranged on the liquid inlet and return pipe.
Preferably, the hydraulic traveling mechanism is a hydraulic motor.
The utility model discloses constitute by high strength track chassis, hydraulic drive walking portion, 4 diameter 200mm support posts (every initial supporting force is 879KN, and the working resistance is 1100KN), back timber and four-bar linkage, support height 2.0-3.5 m. The forepoling passes through liquid inlet and return pipe and hydraulic power unit formation energy transmission system, and the support walking is gone on through operating the hydraulic valve group to the strut of roof. The width of the support is 1.4m, the supports are used in groups when advanced supporting is carried out on the crossheading, and each group comprises 2 supports. The length of the forepoling of the working face is 40m, and 8 groups of brackets are needed. After the coal mining machine finishes one-time beveling feed, the upright post is lowered through the hydraulic upright post operation valve, the four-bar linkage mechanism is lowered, after the lowering is finished, the hydraulic traveling mechanism operation valve is operated to control the hydraulic motor to drive the crawler chassis to move forwards, after the crawler chassis moves to a destination, the upright post is lifted through the hydraulic upright post operation valve, the top beam is made to reach the top plate, each group of supports are sequentially operated according to the procedures of lowering, moving and lifting to realize the integral migration of 800mm, and one-time frame moving circulation is finished.
The utility model has enough supporting strength, can effectively control the top plate, has enough supporting strength relative to the single body supporting, can bear the pressure of the top plate in special sections and the periodic pressure of the top plate, ensures the height of the tunnel and ensures the safe production; greatly relieving the labor intensity of staff and improving the labor efficiency and benefit. The application of the end forepoling greatly lightens the labor intensity and improves the labor efficiency, 3 workers need to be arranged for the tail roadway crossheading support by matching the contrast monomer with the hinged top beam, and only 1 worker is needed for the crawler traveling forepoling, each worker works 300 yuan, so that the labor cost can be saved by 54000 yuan per month; the maintenance cost of the monomer is reduced, and the material cost is saved. The daily damage maintenance cost of the single prop is saved by 20000 yuan/month, and the consumption cost of the emulsified oil is saved by 1000 yuan/month; the production efficiency is improved. By adopting the end head forepoling, the coal mining machine does not need to stop the machine from the tail end of the working face, the continuous production of the working face is realized, the time is saved by about 20 minutes for each coal cut compared with the traditional column returning mode, one coal cut (920 tons/cut) can be added every day, and 2.7 ten thousand tons of coal can be added every month.
The utility model discloses a it is big to connect the top area, and track and ground area of contact are big, pressure (unit area's pressure) are little, and track walking mobility is strong, the flexibility is good, and tunnel adaptability is strong, characteristics such as efficient. The utility model discloses an adaptation carbolite is coal seam stoping and main equipment's transportation installation demand, rock burst etc. cause the leading section tunnel accident of working face to take place frequently, so confirm the supporting parameter according to tunnel section and roof pressure condition, the research design combine to adopt working face crossheading track walking type leading support, thoroughly solve the monomer hydraulic prop and join in marriage the back timber and carry out leading supporting effect poor, speed is slow, intensity of labour is big, with high costs and the poor scheduling problem of security, has high popularization and application and worth.
Drawings
The invention is further described with reference to the accompanying drawings, in which:
fig. 1 is a first schematic structural diagram of the present invention;
FIG. 2 is a second schematic structural view of the present invention;
description of reference numerals: 1. crawler-type chassis, 2, connecting plate, 3, stand, 4, four-bar linkage, 5, back timber, 6, track, 7, big bearing wheel, 8, little bearing wheel, 9, last bearing wheel, 10, drive wheel, 11, base skeleton, 12, end connecting rod, 13, top connecting rod, 14, solid fixed splint, 15, mounting, 16, brace table, 17, hydraulic motor.
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. Based on the embodiments in 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.
As shown in fig. 1 and 2, combine and adopt working face crossheading track walking leading boom of this embodiment, including a pair of crawler-type chassis 1, be equipped with connecting plate 2 between a pair of crawler-type chassis 1, 2 both ends of connecting plate are fixed with the stand 3 of liftable respectively, and 2 central authorities of connecting plate are connected with back timber 5 bottoms through four- bar linkage 4, and 3 tops of stand are equipped with back timber 5, the arbitrary one end outside cover of crawler-type chassis 1 is equipped with hydraulic walking mechanism, and hydraulic walking mechanism is connected with hydraulic pump station through advancing back liquid pipe, it is equipped with the hydraulic walking mechanism operating valve that is used for controlling the motion of crawler-type chassis to advance back liquid pipe.
Further, the crawler-type chassis comprises a crawler 6, a driving wheel 10 is arranged at one end of the inner side of the crawler 6, a large bearing wheel 7 is arranged at the other end of the inner side of the crawler 6, a small bearing wheel 8 is arranged between the driving wheel 10 and the large bearing wheel 7, the small bearing wheel 8 is arranged at the top of the central position of the crawler 6, the upper bearing wheel 8 is arranged, the small bearing wheel 8, the large bearing wheel 7 and the driving wheel 10 are all fixed on a base framework 11 through rotating shafts, and a hydraulic traveling mechanism is sleeved on the rotating shaft positioned on the outer side of the driving wheel 10.
Preferably, a connecting plate 2 is arranged between the inner sides of the base frames 11.
Further, the four-bar linkage 4 includes two bottom connecting rods 12 located at the bottom, a top connecting rod 13 located at the top, and fixing clamp plates 14 for fixing the bottoms of the two bottom connecting rods 12, the two bottom connecting rods 12 are respectively fixed between the fixing clamp plates 14 located at the top of the center of the connecting plate through pin shafts, one end of the top connecting rod 13 is fixed on a top beam bottom fixing part 15 through a pin shaft, and the clamp plate at the other end of the top connecting rod 13 is respectively connected to the two bottom connecting rods 12 through pin shafts.
Further, the fixing member 15 includes a pair of clamping plates, a mounting plate is fixed between the clamping plates by bolts, and both sides of the mounting plate are located between the clamping arms and connected with the clamping arms by pins.
Preferably, the stand 3 is a hydraulic stand, the bottom of the hydraulic stand is fixed on a support table 16 of the connecting plate 2, the top of the hydraulic stand is fixed on a steel plate at the bottom of the top beam 5 through bolts, the hydraulic stand is connected with a hydraulic pump station through a liquid inlet and return pipe, and a hydraulic stand operating valve used for lifting the hydraulic stand is arranged on the liquid inlet and return pipe.
Preferably, the hydraulic traveling mechanism is a hydraulic motor 17.
The utility model provides a hydraulic motor and hydraulic pressure operating valve all adopt general model can.
In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a combine and adopt working face crossheading track walking type leading support, its characterized in that, includes a pair of crawler-type chassis, is equipped with the connecting plate between a pair of crawler-type chassis, and the connecting plate both ends are fixed with the stand of liftable respectively, and connecting plate central authorities are connected with the back timber bottom through four-bar linkage, and the stand top is equipped with the back timber, the arbitrary one end outside cover of crawler-type chassis is equipped with hydraulic walking mechanism, and hydraulic walking mechanism is connected with hydraulic power unit through advancing back liquid pipe, it is equipped with the hydraulic walking mechanism operating valve that is used for controlling the motion of crawler-type chassis on advancing back liquid pipe.
2. The fully mechanized mining face crossheading track walking type forepoling stand of claim 1, wherein the track type chassis comprises a track, one end of the inner side of the track is provided with a driving wheel, the other end of the inner side of the track is provided with a large bearing wheel, a small bearing wheel is arranged between the driving wheel and the large bearing wheel, the small bearing wheel is provided with an upper bearing wheel at the top of the center of the track, the small bearing wheel, the large bearing wheel and the driving wheel are all fixed on the base framework through rotating shafts, and a hydraulic walking mechanism is sleeved on the rotating shaft at the outer side of the driving wheel.
3. The fully mechanized mining face gate track walking type forepoling of claim 2, wherein a connecting plate is arranged between the inner sides of the base frames.
4. The fully mechanized mining face gate track walking type forepoling of claim 1, wherein the four-bar linkage comprises two bottom connecting bars at the bottom, a top connecting bar at the top, and fixing clamps for fixing the bottoms of the two bottom connecting bars, the two bottom connecting bars are respectively fixed between the fixing clamps at the top of the center of the connecting plate through pins, one end of the top connecting bar is fixed on the top beam bottom fixing part through a pin, and the two bottom connecting bars are respectively connected to the clamps at the other end of the top connecting bar through a pin.
5. The fully mechanized mining face gate track walking type forepoling of claim 4, wherein the fixing member comprises a pair of clamping plates, a mounting plate is fixed between the clamping plates through bolts, and two sides of the mounting plate are located between the clamping arms and connected with the clamping arms through pin shafts.
6. The fully mechanized mining face crossheading track walking type forepoling according to any one of claims 1 to 5, wherein the upright is a hydraulic upright, the bottom of the hydraulic upright is fixed on a support table of a connecting plate, the top of the hydraulic upright is fixed on a steel plate at the bottom of a top beam through a bolt, the hydraulic upright is connected with a hydraulic pump station through a liquid inlet and return pipe, and a hydraulic upright operating valve for lifting the hydraulic upright is arranged on the liquid inlet and return pipe.
7. The fully mechanized mining face gate track walking type forepoling of any one of claims 1 to 5, wherein the hydraulic walking mechanism is a hydraulic motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120455963.6U CN214424530U (en) | 2021-03-03 | 2021-03-03 | Fully-mechanized mining working surface gate-groove crawler traveling type forepoling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120455963.6U CN214424530U (en) | 2021-03-03 | 2021-03-03 | Fully-mechanized mining working surface gate-groove crawler traveling type forepoling |
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| Publication Number | Publication Date |
|---|---|
| CN214424530U true CN214424530U (en) | 2021-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120455963.6U Active CN214424530U (en) | 2021-03-03 | 2021-03-03 | Fully-mechanized mining working surface gate-groove crawler traveling type forepoling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214424530U (en) |
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2021
- 2021-03-03 CN CN202120455963.6U patent/CN214424530U/en active Active
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