CN109339845B - Self-moving type advanced support - Google Patents
Self-moving type advanced support Download PDFInfo
- Publication number
- CN109339845B CN109339845B CN201811584011.3A CN201811584011A CN109339845B CN 109339845 B CN109339845 B CN 109339845B CN 201811584011 A CN201811584011 A CN 201811584011A CN 109339845 B CN109339845 B CN 109339845B
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- China
- Prior art keywords
- base
- jacks
- plate
- upright posts
- side pushing
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- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000003245 coal Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
- E21D23/26—Hydraulic or pneumatic control
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
A self-moving type advanced support comprises a top beam, a base, a bottom plate, upright posts, a side pushing jack and a supporting jack, wherein the top beam is of a box type structure, and two sides of the top beam are upwards connected with a horizontal connecting plate; the upper ends of the two upright posts are connected with the top beam, the lower ends of the two upright posts are connected with the base, two cylindrical cavities are horizontally designed at the two ends in the base, and two side pushing jacks are respectively arranged in the two cylindrical cavities; the bottom plate is an L-shaped plate, the plate in the horizontal direction is arranged below the base, and the bottom plate is connected with the base through a side pushing jack to form a side pushing mechanism; four support jack one side two, set up in the base both sides respectively, the upper end is connected below the connecting plate of base, and the lower extreme is connected on a fixing base. The invention has simple structure, easy manufacture and processing and convenient operation and use; the self-moving mechanism is utilized to realize the lateral movement of the device, the traction equipment such as a winch and the like is utilized to pull and move to the front end of the advance section, the purpose of no repeated support of the advance support is realized, and the management level of the roadway roof is improved.
Description
Technical Field
The invention relates to underground coal mine supporting equipment, in particular to supporting equipment in an advanced area of a return airway of a fully-mechanized coal mining face in the underground coal mine.
Background
According to the requirements of the coal mine safety regulations: the support must be reinforced within the influence range of the advanced pressure at the connection part of all the safety outlets of the coal face and the roadway, and the roadway length of the reinforced support must not be less than 20m; the comprehensive mechanized coal mining working face is characterized in that the roadway height in the range is not lower than 1.8m, and the roadway heights in other coal mining working faces are not lower than 1.6m. At present, single prop plus pi-shaped beam or advancing advance support is commonly adopted in the section of the domestic mine, and the former has lower working efficiency and mechanization degree; the latter operation is simple and convenient, but the supporting mode can repeatedly support the top plate, is unfavorable for safety management and maintenance of the top plate, is easy to cause the breakage of the top plate, and both supporting modes have obvious defects.
Disclosure of Invention
The purpose of the invention is that: the self-moving type advanced support is arranged along the direction of the roadway, the self-moving type advanced support can be moved to the middle position of the roadway from two sides of the roadway by utilizing a self-moving mechanism, hydraulic automatic movement of the advanced support from two sides of the roadway to the middle position of the roadway is realized, after the advanced support is moved to the middle position of the roadway, the advanced support is moved to the forefront position from the rearmost position by utilizing equipment such as a winch arranged in the roadway, and then the advanced support is moved to the positions to be supported from two sides of the roadway from the middle position of the roadway by utilizing the self-moving mechanism, so that a frame moving cycle is completed.
The technical scheme adopted for realizing the purpose of the invention is as follows: the device comprises a top beam, a base, a bottom plate, upright posts, side pushing jacks and supporting jacks, wherein the top beam is of a box type structure, the lower part of the base is of a box type structure, and two sides of the top beam are respectively fixed with a horizontal connecting plate through brackets; the upper ends of the two upright posts are connected with the top beam, the lower ends of the two upright posts are connected with the base, and the two upright posts are connected by a fixed connecting device; the bottom plate is an L-shaped plate, the plate in the horizontal direction is arranged below the base, two cylindrical cavities are horizontally designed in the base, two side pushing jacks are respectively arranged in the two cylindrical cavities, positioning sleeves are arranged on the vertical plate of the bottom plate corresponding to the two cylindrical cavities on the base, the front ends of the two side pushing jacks are fixed on the positioning sleeves on the vertical plate, the rear ends of the two side pushing jacks are fixedly connected with the base through pin shafts, and the bottom plate is connected with the base through the side pushing jacks to form a self-moving mechanism; four supporting jacks are arranged on two sides of the base respectively, the upper ends of the supporting jacks are connected below the connecting plates on two sides of the base, and the lower ends of the supporting jacks are connected to a fixed seat.
The fixed connection device comprises a T-shaped support column, a semicircular pressing plate and bolts, wherein the T-shaped support column is arranged at the middle position of the base, a semicircular clamping plate is arranged at the two ends of the upper surface of the T-shaped support column, the two semicircular clamping plates are respectively clamped at the inner sides of two upright posts, the two semicircular pressing plates are respectively clamped at the outer sides of the upright posts, and the two semicircular clamping plates at the two ends of the upper surface of the T-shaped support column are connected with the semicircular pressing plate through the bolts and locked.
A cylindrical cavity is arranged between the two cylindrical cavities on the base, a guide rod is arranged in the cylindrical cavity, the front end part of the guide rod is fixed on a positioning sleeve on the vertical plate, and the guide rod can slide in the cylindrical cavity relative to the base
The connection parts of the two ends of the side pushing jack and the supporting jack are cylindrical, and pin shaft holes for connecting with related parts are arranged at the front part of the piston rod and the rear part of the cylinder body.
The hydraulic control system belongs to the conventional technology, and a person of ordinary skill in the art can design the hydraulic control system of the device by himself, and the details are not described here.
The invention has the positive effects that: the structure is simple, the manufacturing and the processing are easy, and the operation and the use are convenient; the telescopic supporting and separating of the advance support are realized by controlling the telescopic of the upright post through the control valve, the telescopic supporting jack and the lateral pushing jack are controlled through the control valve, the lateral movement of the advance support is realized, the advance support is automatically moved to the middle position of a roadway, the advance support is pulled to the forefront position from the rearmost position of the advance region of the roadway by using traction equipment such as a winch and the like arranged in the roadway, then the advance support is automatically moved to the positions to be supported on the two sides of the roadway by using the self-moving mechanism, the purpose of no repeated supporting of the advance support is further realized, the integrity of a roadway top plate is ensured, and the management level of the roadway top plate is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention; FIG. 2 is a left side view of FIG. 1; FIG. 3 is a schematic diagram of a side-pushing mechanism; FIG. 4 is a schematic diagram of a base plate structure; FIG. 5 is a left side view of FIG. 4; FIG. 6 is a schematic view of a base structure with T-shaped struts installed; FIG. 7 is a top view of FIG. 6; FIG. 8 is a schematic view of the structure of the fixing base on the supporting jack; FIG. 9 is a schematic view of the structure of the lower fixing base of the supporting jack; fig. 10 is a schematic diagram of the profile of the side-pushing jack and the supporting jack.
Detailed Description
As shown in fig. 1 and 2, the device comprises a top beam 1, a base 2, a bottom plate 3, upright posts 5, side pushing jacks 6 and supporting jacks 7, wherein the top beam 1 is of a box type structure, the lower part of the base 2 is of a box type structure, two sides of the base are welded with a bracket 19 upwards, the brackets 19 are respectively welded with a horizontal connecting plate 20, and the connecting plates 20 are respectively provided with 8 bolt holes (shown in fig. 6 and 7); the piston rods at the upper ends of the two upright posts 5 are fixed with the top beam 1 through the pin shafts 8, the lower ends of the two upright posts 5 are fixed on the base 2 through the pin shafts 8, the two upright posts 5 are connected through a fixed connection device, the fixed connection device consists of a T-shaped support post 14, a semicircular arc pressing plate 4 and bolts 10, the T-shaped support post 14 is box-shaped and welded at the middle position of the base 2, ear plates 18 are respectively arranged at the end parts of the two sides of the base 2 and are used for connecting traction equipment (shown in figures 6 and 7), semicircular arc clamping plates are respectively arranged at the two ends above the T-shaped support post 14, the two semicircular arc clamping plates are respectively clamped at the inner sides of the two upright posts 5, the two semicircular arc pressing plates 4 are respectively clamped at the outer sides of the upright posts 5, and the two semicircular arc clamping plates at the two ends above the T-shaped support post 14 are connected with the semicircular arc pressing plate 4 through the bolts 10 and are locked. The bottom plate 3 is an L-shaped plate (shown in figures 4 and 5), the plate in the horizontal direction is arranged below the base 2, three positioning sleeves 15 are arranged on the outer side of the vertical plate 17, three cylindrical cavities are horizontally designed at the two ends and the middle of the inside of the base 2, two side pushing jacks 6 are respectively arranged in the two cylindrical cavities at the two sides, the front end part of each side pushing jack is fixed on the positioning sleeve 15 on the vertical plate 17 through a pin shaft, the rear end of each side pushing jack is fixed on the base 2 through a pin shaft 16, the guide rod 11 is arranged in the cylindrical cavity at the middle of the inside of the base 2, the front end part of each side pushing jack is fixed on the positioning sleeve 15 on the vertical plate 17 through a pin shaft, the guide rod 11 is arranged in the cylindrical cavity in the base 2 and is slidable relative to the base 2, and the bottom plate 3 is connected with the base 2 through the side pushing jacks 6 to form a self-moving mechanism (shown in figure 3). Two sides of the four supporting jacks 7 are respectively arranged at two sides of the base 2, two supporting jack upper fixing seats 12 are respectively connected below connecting plates 20 at two sides of the base 2, each supporting jack upper fixing seat 12 consists of a square metal plate 21 and a cylindrical connecting seat 22 (shown in figure 8), each square metal plate 21 is provided with four bolt holes, each supporting jack upper fixing seat 12 is fixed below the connecting plate 20 through bolts, the end parts of piston rods at the upper ends of the supporting jacks 7 are spliced on the cylindrical connecting seats 22 on the supporting jack upper fixing seats 12, and the distribution shaft 9 is fixed on the supporting jack upper fixing seats 12; the lower ends of the supporting jacks 7 are connected to the supporting jack lower fixing base 13, the supporting jack lower fixing base 13 consists of a rectangular metal plate 24 and two cylindrical connecting bases 23 (shown in figure 9), the lower ends of the two supporting jacks 7 on one side are inserted into the cylindrical connecting bases 23 on the supporting jack lower fixing base 13, and the distribution shaft 9 is fixed on the supporting jack lower fixing base 13. The connection parts of the two ends of the side pushing jack 6 and the supporting jack 7 are cylindrical (as shown in figure 10), and the front part of the piston rod and the rear part of the cylinder body are respectively provided with a pin shaft hole for connection with related parts.
Working principle: the piston rod of the upright post 5 is retracted, and the height of the top beam 1 of the advance support is reduced to the lowest height; the side pushing jack 6 is operated to extend out of the piston rod, and the base 2 of the advance bracket and the connecting member on the base integrally move one step distance of the side pushing jack stroke towards the extending direction of the piston rod; operating the supporting jack 7, extending out of the piston rod, enabling the supporting jack lower fixing seat 13 to fall to contact the ground, and simultaneously lifting the whole advance bracket; the bottom plate 3 is lifted up together with the base 2; the side pushing jack 6 is operated to retract the piston rod, and the bottom plate 3 is retracted together with the piston rod; the supporting jack 7 is operated, the piston rod is retracted, the base 2 falls on the ground, the movement of a step distance is completed, and the operation is circulated until the base is moved to the middle position of the roadway. And then, the front support is pulled to the forefront end of the front area by connecting the original traction equipment such as a winch in the roadway with the lug plates 18 on the base 2, and is moved to the positions to be supported on the two sides of the roadway by the self-moving mechanism.
Claims (2)
1. The utility model provides a from moving formula advance support which characterized in that: the device comprises a top beam, a base, a bottom plate, upright posts, side pushing jacks and supporting jacks, wherein the top beam is of a box type structure, the lower part of the base is of a box type structure, and two sides of the top beam are respectively fixed with a horizontal connecting plate through brackets; the upper ends of the two upright posts are connected with the top beam, the lower ends of the two upright posts are connected with the base, and the two upright posts are connected by a fixed connecting device; the bottom plate is an L-shaped plate, the plate in the horizontal direction is arranged below the base, two cylindrical cavities are horizontally designed in the base, two side pushing jacks are respectively arranged in the two cylindrical cavities, positioning sleeves are arranged on the vertical plate of the bottom plate corresponding to the two cylindrical cavities on the base, the front ends of the two side pushing jacks are fixed on the positioning sleeves on the vertical plate, the rear ends of the two side pushing jacks are fixedly connected with the base through pin shafts, and the bottom plate is connected with the base through the side pushing jacks to form a self-moving mechanism; one side of the four supporting jacks is two, the four supporting jacks are respectively arranged at two sides of the base, the upper ends of the supporting jacks are connected below the connecting plates at two sides of the base, the lower ends of the supporting jacks are connected on a fixed seat,
the fixed connecting device consists of a T-shaped support, a semicircular pressing plate and a bolt, wherein the T-shaped support is arranged at the middle position on the base, the semicircular clamping plates are respectively arranged at the two ends of the upper surface of the T-shaped support, the two semicircular clamping plates are respectively clamped at the inner sides of the two upright posts, the two semicircular pressing plates are respectively clamped at the outer sides of the upright posts, the two semicircular clamping plates at the two ends of the upper surface of the T-shaped support are connected with the semicircular pressing plates through the bolt and locked,
a cylindrical cavity is arranged between the two cylindrical cavities on the base, a guide rod is arranged in the cylindrical cavity, the front end part of the guide rod is fixed on a positioning sleeve on the vertical plate, and the guide rod can slide in the cylindrical cavity relative to the base.
2. The self-moving lead frame as defined in claim 1, wherein: the connection parts of the two ends of the side pushing jack and the supporting jack are cylindrical, and pin shaft holes for connecting with related parts are arranged at the front part of the piston rod and the rear part of the cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811584011.3A CN109339845B (en) | 2018-12-24 | 2018-12-24 | Self-moving type advanced support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811584011.3A CN109339845B (en) | 2018-12-24 | 2018-12-24 | Self-moving type advanced support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109339845A CN109339845A (en) | 2019-02-15 |
| CN109339845B true CN109339845B (en) | 2024-03-29 |
Family
ID=65297057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811584011.3A Active CN109339845B (en) | 2018-12-24 | 2018-12-24 | Self-moving type advanced support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109339845B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915191B (en) * | 2019-04-19 | 2024-02-23 | 安徽省矿业机电装备有限责任公司 | Roadway support stroke-adjustable translation structure and use method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203603946U (en) * | 2013-12-04 | 2014-05-21 | 郑州煤矿机械集团股份有限公司 | Electrohydraulic-control large-working-resistance four-column top coal caving support |
| CN203905988U (en) * | 2014-07-01 | 2014-10-29 | 铁法煤业集团机械制造有限责任公司 | Slip type temporary supporting bracket |
| CN104500117A (en) * | 2014-12-10 | 2015-04-08 | 中煤北京煤矿机械有限责任公司 | Repeated-support-free continuous support forepoling hydraulic support frame |
| CN105201536A (en) * | 2015-08-31 | 2015-12-30 | 中国矿业大学 | Self-moving whole-section advanced supporting equipment |
| CN205330705U (en) * | 2015-12-21 | 2016-06-22 | 中国神华能源股份有限公司 | Car is strutted to monomer |
| CN106677813A (en) * | 2016-12-30 | 2017-05-17 | 中国煤炭科工集团太原研究院有限公司 | Novel temporary supporting device for coal mine roadway comprehensive digging face |
| CN209557027U (en) * | 2018-12-24 | 2019-10-29 | 永城煤电控股集团有限公司 | A kind of automatic moving type advance timbering |
-
2018
- 2018-12-24 CN CN201811584011.3A patent/CN109339845B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203603946U (en) * | 2013-12-04 | 2014-05-21 | 郑州煤矿机械集团股份有限公司 | Electrohydraulic-control large-working-resistance four-column top coal caving support |
| CN203905988U (en) * | 2014-07-01 | 2014-10-29 | 铁法煤业集团机械制造有限责任公司 | Slip type temporary supporting bracket |
| CN104500117A (en) * | 2014-12-10 | 2015-04-08 | 中煤北京煤矿机械有限责任公司 | Repeated-support-free continuous support forepoling hydraulic support frame |
| CN105201536A (en) * | 2015-08-31 | 2015-12-30 | 中国矿业大学 | Self-moving whole-section advanced supporting equipment |
| CN205330705U (en) * | 2015-12-21 | 2016-06-22 | 中国神华能源股份有限公司 | Car is strutted to monomer |
| CN106677813A (en) * | 2016-12-30 | 2017-05-17 | 中国煤炭科工集团太原研究院有限公司 | Novel temporary supporting device for coal mine roadway comprehensive digging face |
| CN209557027U (en) * | 2018-12-24 | 2019-10-29 | 永城煤电控股集团有限公司 | A kind of automatic moving type advance timbering |
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| Publication number | Publication date |
|---|---|
| CN109339845A (en) | 2019-02-15 |
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