CN202510150U - Hydraulic support for thin-seam coal mine down hole - Google Patents
Hydraulic support for thin-seam coal mine down hole Download PDFInfo
- Publication number
- CN202510150U CN202510150U CN2012200969562U CN201220096956U CN202510150U CN 202510150 U CN202510150 U CN 202510150U CN 2012200969562 U CN2012200969562 U CN 2012200969562U CN 201220096956 U CN201220096956 U CN 201220096956U CN 202510150 U CN202510150 U CN 202510150U
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- China
- Prior art keywords
- coal plate
- coal
- jack
- protect
- back timber
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Abstract
The utility model discloses a hydraulic support for a thin-seam coal mine down hole, which comprises a top beam device, a stand column (2), a balance jack (3), a shield beam (4), a front connecting rod (5), a back connecting rod (6), a base (7), a pushing rod (8), a telescopic jack (11) and a coal shield jack (12), wherein the top beam device comprises an integral top beam (1) and a telescopic beam (10), the telescopic beam (10) acts in the top beam (1) through the telescopic jack (11) to be telescopic, a coal shield (9) is arranged on the top beam; and the coal shield (12) comprises a primary coal shield (14) and a secondary coal shield (13) which are connected and fixed together through two pin rolls. Exhaust holes are arranged in the primary coal shield and the secondary coal shield, and rubber skins are fixed on two sides of the coal shields through bolts.
Description
Technical field
The invention belongs to the coal mining apparatus field, be specifically related to a kind of hydraulic support that is used under the girdle coal mine.
Background technology
Fully-mechanized mining is the developing direction of thin seam mining, and some countries greatly develop girdle automatically working face a complete set of equipment technology at present, and part has realized manless working face.China has carried out the comprehensive mechanical mining of girdle in a plurality of ore deposits, but domestic existing thin coal bed fully-mechanized mining Technical properties of plant is backward, and production capacity is low, poor reliability; After fully-mechanized mining equipment breaks down, narrow and small because of working space, keep in repair extremely difficult; Production management is complicated, and economic effect is poor, has influenced the development of the comprehensive mechanical mining of girdle.
Coal-winning machine can't satisfy under coal and the situation that spoil separates at home, the effective means that big gun is adopted is little owing to its investment, instant effect, compliance become most of complicated thin seam mining by force.Traditional big gun is adopted and is had shortcomings such as poor stability, labor intensity is big, production efficiency is low, is badly in need of the mixed equipment of adopting of machine gun that development is adapted to complicated thin seam mining.Hydraulic support is as the key equipment of work plane; Investment accounts for more than 60% of working face equipment investment; For improving blast mining face safety and supporting efficient; Simultaneously for enlarging the scope of application of hydraulic support, must develop and a kind ofly can be adapted to the hydraulic support that blast mining face also can be applied to fully-mechanized mining working.
Summary of the invention
In order to address the above problem; The present invention provides a kind of machine gun that not only had been applicable to mix mining face but also be applicable to the standing shield hydraulic support of fully-mechanized mining working; Hydraulic support comprises back timber structure, column, balance jack, caving shield, front rod, back link, base, pusher rod, and the back timber structure comprises back timber and extensible canopy, and extensible canopy acts in the back timber flexible through flexible jack; Be equipped with on the back timber and protect the coal plate; Protect the coal plate and can overlap with conveyer after stretching out, prevent to blow out that the avalanche coal cinder falls into goaf one side through protecting the flexible realization folding and unfolding of coal plate jack, protecting the coal plate.Protect the coal plate and can be one or more levels structure, both sides have round so that rubber to be installed.
Back timber is connected through bearing pin with caving shield, between caving shield and back timber, passes through the adjustment of following jin of jacking row relative angle of balance.Caving shield, base, front-rear linkage link together through bearing pin and form four-bar linkage structure; Column is connected with base with back timber through bearing pin, protects coal plate jack and protect the coal plate to link together through bearing pin and back timber, protects the coal plate simultaneously and protect coal plate jack linking together through bearing pin, protects the folding and unfolding of coal plate through the flexible realization of protecting coal plate jack.
Protect the coal plate and protect coal plate and secondary by one-level and protect the coal plate and form, one-level is protected coal plate and secondary and is protected the coal plate and be connected and fixed through two bearing pins, and firsts and seconds protects on the coal plate and has round, through bolt rubber is fixed on and protects coal plate both sides.
Machine gun mixes when adopting exploitation, protects coal plate jack and will protect the coal plate and stretch out and prop, and will protect that the coal plate puts down and the conveyer overlap joint, and in the coal breakage process, the sky side apparatus is avoided coal cinder when explosion coal-falling impact is adopted in protection.During fully-mechanized mining, protect coal plate jack and will protect the coal plate and pack up, hydraulic support can with coal-winning machine, the supporting use of drag conveyor.
Description of drawings
Fig. 1 is the structure chart of hydraulic support;
Fig. 2 protects the structure chart of coal plate.
Among Fig. 1 and Fig. 2: back timber 1, column 2, balance jack 3, caving shield 4, front rod 5, back link 6, base 7, pusher rod 8 is protected coal plate 9, extensible canopy 10, flexible jack 11 protects coal plate jack 12, and secondary protects coal plate 13, and one-level is protected coal plate 14.
The specific embodiment
For making those skilled in the art better understand technical scheme of the present invention,, the present invention done further describing in conjunction with Figure of description.
Hydraulic support of the present invention is mainly by back timber 1, column 2, balance jack 3, caving shield 4; Front rod 5, back link 6, base 7, pusher rod 8; Protect coal plate 9, extensible canopy 10, flexible jack 11 protects coal plate jack 12 and forms; Extensible canopy 10 acts in the back timber 1 flexible through flexible jack 11, protect coal plate 9 and be installed on the back timber, protects coal plate 9 through protecting the flexible realization folding and unfolding of coal plate jack 12.Back timber 1 and caving shield 4 are connected through bearing pin, and between caving shield and back timber, can carry out the adjustment of relative angle through balance jack; Caving shield 4, base 7, front-rear linkage 5,6 link together through bearing pin and form four-bar linkage structure; Column 2 is connected with base 7 with back timber 1 through bearing pin; Protect coal plate jack 12 and protect coal plate 9 and link together through bearing pin and back timber 1; Protect coal plate 9 simultaneously and protect coal plate jack 12 and link together, thereby protect the folding and unfolding of coal plate 9 through the flexible realization of protecting coal plate jack 12 through bearing pin; The back timber structure adopts rigidity back timber 1 to add the form of extensible canopy 10, and extensible canopy 10 acts in the back timber 1 through flexible jack 11 and stretches.Protect coal plate 9 and protect coal plate 14 by one-level and protect coal plate 13 with secondary and forms, one-level is protected coal plate 14 and is protected coal plate 13 with secondary and be connected and fixed through two bearing pins, and firsts and seconds protects on the coal plate and has round, through the bolt connection rubber is fixed on and protects coal plate 9 both sides.
Machine gun mixes when adopting exploitation, protects coal plate jack 12 and will protect coal plate 9 and stretch out and prop, and will protect that coal plate 9 puts down and the conveyer overlap joint, and in the coal breakage process, the sky side apparatus is avoided coal cinder when explosion coal-falling impact is adopted in protection.During fully-mechanized mining, protect coal plate jack 12 and will protect coal plate 9 and pack up, hydraulic support can with coal-winning machine, the supporting use of drag conveyor.
Claims (4)
1. be used for the hydraulic support under the girdle coal mine; Comprise back timber structure, column (2), balance jack (3), caving shield (4), front rod (5), back link (6), base (7), pusher rod (8); It is characterized in that: the back timber structure comprises back timber (1) and extensible canopy (10); Extensible canopy (10) acts in the back timber (1) flexible through flexible jack (11), be equipped with on the back timber and protect coal plate (9), protects coal plate (9) through protecting the flexible realization folding and unfolding of coal plate jack (12).
2. hydraulic support according to claim 1; It is characterized in that: described caving shield (4), base (7), front rod (5), back link (6) link together through bearing pin and form four-bar linkage structure; Column (2) is connected with base (7) with back timber (1) respectively through bearing pin; Protect coal plate jack (12) and protect coal plate (9) linking together, protect coal plate (9) and protect coal plate jack (12) linking together through bearing pin through bearing pin and back timber (1).
3. hydraulic support according to claim 1 is characterized in that: the described coal plate (9) that protects protects coal plate (14) and secondary by one-level and protects coal plate (13) and form, and one-level is protected coal plate (14) and secondary and protected coal plate (13) and be connected and fixed through two bearing pins.
4. hydraulic support according to claim 3 is characterized in that: described one-level is protected coal plate (14) and secondary and is protected on the coal plate (13) and have round, through bolt rubber is fixed on and protects coal plate both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200969562U CN202510150U (en) | 2012-03-15 | 2012-03-15 | Hydraulic support for thin-seam coal mine down hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200969562U CN202510150U (en) | 2012-03-15 | 2012-03-15 | Hydraulic support for thin-seam coal mine down hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202510150U true CN202510150U (en) | 2012-10-31 |
Family
ID=47062642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200969562U Expired - Lifetime CN202510150U (en) | 2012-03-15 | 2012-03-15 | Hydraulic support for thin-seam coal mine down hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202510150U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606182A (en) * | 2012-03-15 | 2012-07-25 | 中国煤矿机械装备有限责任公司 | hydraulic support used for underground coal mine with thin seam |
| CN103046944A (en) * | 2012-12-26 | 2013-04-17 | 三一重型装备有限公司 | Hydraulic support |
-
2012
- 2012-03-15 CN CN2012200969562U patent/CN202510150U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606182A (en) * | 2012-03-15 | 2012-07-25 | 中国煤矿机械装备有限责任公司 | hydraulic support used for underground coal mine with thin seam |
| CN103046944A (en) * | 2012-12-26 | 2013-04-17 | 三一重型装备有限公司 | Hydraulic support |
| CN103046944B (en) * | 2012-12-26 | 2015-04-22 | 三一重型装备有限公司 | Hydraulic support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121031 |