CN102080556A - Transitional bracket for mechanized large mining height working face of coal - Google Patents
Transitional bracket for mechanized large mining height working face of coal Download PDFInfo
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- CN102080556A CN102080556A CN 201110028059 CN201110028059A CN102080556A CN 102080556 A CN102080556 A CN 102080556A CN 201110028059 CN201110028059 CN 201110028059 CN 201110028059 A CN201110028059 A CN 201110028059A CN 102080556 A CN102080556 A CN 102080556A
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- side plate
- back timber
- hinged
- caving shield
- top beam
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Abstract
The invention discloses a transitional bracket for a mechanized large mining height working face of coal. The transitional bracket comprises a pedestal, a bracket shifting mechanism, a hydraulic telescopic upright column, a front connecting rod, a back connecting rod, a top beam which is arranged at the top end of the hydraulic telescopic upright column, a telescopic wall protecting mechanism which is hinged at the front end of the top beam, and a shield beam which is hinged at the back end of the top beam, wherein the lower end of the shield beam is hinged with the front connecting rod and the back connecting rod; a top beam active side plate and a shield beam active side plate are hinged to the same side of the top beam and the shield beam; a top beam side plate and a shield beam side plate which have box structures are welded on the other sides of the top beam and the shield beam respectively; the width of the top beam side plate is more than that of the top beam active side plate; the width of the shield beam side plate is more than that of the shield beam active side plate; a top beam lower side plate is horizontally hinged to the lower end of the top beam side plate; and a support jack is arranged between the top beam side plate and the top beam lower side plate. The invention has the advantages of realizing safety protection in an area in which the intermediate bracket and the end bracket of the working face have large support height difference, and fulfilling the aims of effectively recovering roadway top triangle coal on the two sides of the large mining height working face and improving the coal recovery rate.
Description
Technical field
The present invention relates to coal mine fully-mechanized mining large-mining-height working surface work plane, especially relate to mining height and combine the transition bracket of adopting large-mining-height working surface greater than five meters the coal that is used for.
Background technology
Highly maximum 7 meters of the fully-mechanized mining equipment primary recovery that has used in the colliery, and along with combine the technology of adopting the development exploitation highly improve constantly.The roadway workface height is tunneled, the restriction of support apparatus, highly generally about 4 meters, highly again will sharply increase labour intensity and have certain potential safety hazard.Like this, tunnel and work plane just have the difference in height of a 2-3 rice, and existing transient mode is to reduce height gradually to realize the slow transition of tunnel and work plane joining place by several even tens hydraulic supports; This just causes at top, work plane two ends and leaves coal district, triangle top, has caused certain wasting of resources, and along with the raising waste of exploitation height is more and more serious.With 6.8 meters of mining heights, tunnel is example for 4.4 meters, and every propelling one km of work plane is lost 5.77 ten thousand tons in ventral triangle coal.For reducing the wasting of resources, a kind of special transition bracket must be developed,, work plane middle frame and section transition of face end support height change and protection can be realized by the transition of a hydraulic support, thereby safety reclaims the ventral triangle coal, but yet there are no all relevant reports.
Summary of the invention
The object of the invention is to provide a kind of coal that is used for to combine the transition bracket of adopting large-mining-height working surface, to solve the big discrepancy in elevation protection question of transition bracket and face end support.
For achieving the above object, the present invention can take following technical proposals:
The coal that is used for of the present invention is combined the transition bracket of adopting large-mining-height working surface, it comprises base, be arranged on and move frame mechanism, hydraulically extensible column, front-rear linkage on the described base, with the back timber that is arranged on described hydraulically extensible column top, be hinged on the flexible side protecting mechanism of described back timber front end and the caving shield of rear end respectively; Described caving shield lower end and described front-rear linkage upper end are hinged; Be hinged with back timber side plate alive and caving shield side plate alive respectively in the same side of back timber, caving shield; Live between side plate and the back timber at described back timber, caving shield lives and is respectively arranged with the thruster jack between side plate and the caving shield; Be welded with the back timber side plate and the caving shield side plate of box-structure respectively at the opposite side of back timber, caving shield; The width of described back timber side plate, caving shield side plate is respectively greater than the back timber work side plate of correspondence and the width of caving shield side plate alive; The caving shield side plate is anterior to overlap mutually with the back timber side plate; Be hinged with the back timber lower side panel in back timber side plate lower end; Between back timber side plate and back timber lower side panel, be provided with the support jack; Described back timber lower side panel forms by two boards is hinged.
The invention has the advantages that the security protection that realizes the big zone of work plane intermediate support and face end support supporting height drop, reach the purpose of lane, effective recovery large-mining-height working surface both sides ventral triangle coal, raising coal recovery rate.When working face equipment was just installed, it was highly general consistent with head-room to cut eye, and in advance of the face process, the intermediate support mining height increases gradually.Therefore, different according to face end support and intermediate support difference in height during transition bracket of the present invention uses can be installed and used the back timber side plate of box-structure separately, or with the hinged use of back timber lower side panel.When work plane was arranged hydraulic support, transition bracket back timber side plate and adjacent face end support side guard board overlap joint formed between basic frame and the face end support and realize transition, and back timber side plate alive and intermediate support overlap joint get final product.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the left TV structure schematic diagram of Fig. 1.
Fig. 3 is a working state schematic representation of the present invention.
The specific embodiment
As shown in Figure 1, 2, 3, the coal that is used for of the present invention is combined the transition bracket of adopting large-mining-height working surface, it comprises base 1, be arranged on and move frame mechanism, hydraulically extensible column 2, front and rear connecting rods 3,4 on the described base 1, with the back timber that is arranged on described hydraulically extensible column 2 tops, be hinged on the flexible side protecting mechanism 5 of described back timber front end and the caving shield of rear end respectively; Described caving shield lower end and described front and rear connecting rods 3,4 upper ends are hinged; Be hinged with back timber side plate 6 alive and caving shield side plate 7 alive respectively in the same side of back timber, caving shield; Live between side plate 6 and the back timber at described back timber, caving shield lives and is respectively arranged with the thruster jack between side plate 7 and the caving shield; Be welded with the back timber side plate 8 and the caving shield side plate 9 of box-structure respectively at the opposite side of back timber, caving shield; The width of described back timber side plate 8, caving shield side plate 9 is respectively greater than the back timber work side plate 6 of correspondence and the width of caving shield side plate 7 alive; Caving shield side plate 9 front portions overlap mutually with back timber side plate 8; Be hinged with back timber lower side panel 10 in back timber side plate 8 lower ends; Between back timber side plate 8 and back timber lower side panel 10, be provided with and support jack 11; Described back timber lower side panel 10 forms by two boards is hinged.
Claims (1)
1. one kind is used for the comprehensive transition bracket of adopting large-mining-height working surface of coal, it comprises base (1), be arranged on moving frame mechanism, hydraulically extensible column (2), front and rear connecting rods (3,4) and being arranged on the back timber on described hydraulically extensible column (2) top on the described base (1), be hinged on the flexible side protecting mechanism (5) of described back timber front end and the caving shield of rear end respectively; Described caving shield lower end and described front and rear connecting rods (3,4) upper end is hinged; It is characterized in that: be hinged with back timber side plate (6) alive and caving shield side plate (7) alive respectively in the same side of back timber, caving shield; Live between side plate (6) and the back timber at described back timber, caving shield lives and is respectively arranged with the thruster jack between side plate (7) and the caving shield; Be welded with the back timber side plate (8) and the caving shield side plate (9) of box-structure respectively at the opposite side of back timber, caving shield; The width of described back timber side plate (8), caving shield side plate (9) is respectively greater than the back timber work side plate (6) of correspondence and the width of caving shield side plate alive (7); Caving shield side plate (9) is anterior to overlap mutually with back timber side plate (8); Be hinged with back timber lower side panel (10) in back timber side plate (8) lower end; Between back timber side plate (8) and back timber lower side panel (10), be provided with and support jack (11); Described back timber lower side panel (10) forms by two boards is hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110028059 CN102080556A (en) | 2011-01-26 | 2011-01-26 | Transitional bracket for mechanized large mining height working face of coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110028059 CN102080556A (en) | 2011-01-26 | 2011-01-26 | Transitional bracket for mechanized large mining height working face of coal |
Publications (1)
| Publication Number | Publication Date |
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| CN102080556A true CN102080556A (en) | 2011-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110028059 Pending CN102080556A (en) | 2011-01-26 | 2011-01-26 | Transitional bracket for mechanized large mining height working face of coal |
Country Status (1)
| Country | Link |
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| CN (1) | CN102080556A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926784A (en) * | 2012-11-16 | 2013-02-13 | 无锡阳工机械制造有限公司 | Hydraulic supporting-shielding bracket structure for coal face |
| CN103758554A (en) * | 2013-12-05 | 2014-04-30 | 中煤北京煤矿机械有限责任公司 | Reliable support beam structure for hydraulic support, and hydraulic support |
| CN111894585A (en) * | 2020-07-15 | 2020-11-06 | 中煤科工开采研究院有限公司 | Fully-mechanized coal mining face system for improving mining rate of mining area |
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| US3726562A (en) * | 1971-04-07 | 1973-04-10 | G Wharton | Mining machine including means for utilizing vacuum at working face and methods of operation thereof |
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| CN1865657A (en) * | 2005-05-19 | 2006-11-22 | 兖矿集团有限公司 | Comprehensive coal-mining process by using long wall mining method |
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| CN201915981U (en) * | 2011-01-26 | 2011-08-03 | 郑州煤矿机械集团股份有限公司 | Transitional support for large-mining-height working surface for full-mechanized coal mining |
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2011
- 2011-01-26 CN CN 201110028059 patent/CN102080556A/en active Pending
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| US3726562A (en) * | 1971-04-07 | 1973-04-10 | G Wharton | Mining machine including means for utilizing vacuum at working face and methods of operation thereof |
| CN1763351A (en) * | 2003-12-12 | 2006-04-26 | 肖自立 | Four-control type comprehensive coal mining method |
| CN1865657A (en) * | 2005-05-19 | 2006-11-22 | 兖矿集团有限公司 | Comprehensive coal-mining process by using long wall mining method |
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| CN201915981U (en) * | 2011-01-26 | 2011-08-03 | 郑州煤矿机械集团股份有限公司 | Transitional support for large-mining-height working surface for full-mechanized coal mining |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926784A (en) * | 2012-11-16 | 2013-02-13 | 无锡阳工机械制造有限公司 | Hydraulic supporting-shielding bracket structure for coal face |
| CN103758554A (en) * | 2013-12-05 | 2014-04-30 | 中煤北京煤矿机械有限责任公司 | Reliable support beam structure for hydraulic support, and hydraulic support |
| CN111894585A (en) * | 2020-07-15 | 2020-11-06 | 中煤科工开采研究院有限公司 | Fully-mechanized coal mining face system for improving mining rate of mining area |
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Application publication date: 20110601 |