CN203687799U - Fully-mechanized coal face roof blasting mechanism - Google Patents
Fully-mechanized coal face roof blasting mechanism Download PDFInfo
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- CN203687799U CN203687799U CN201320843825.0U CN201320843825U CN203687799U CN 203687799 U CN203687799 U CN 203687799U CN 201320843825 U CN201320843825 U CN 201320843825U CN 203687799 U CN203687799 U CN 203687799U
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- roof
- coal face
- back timber
- cartridge
- out mechanism
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Abstract
The utility model discloses a fully-mechanized coal face roof blasting mechanism. The fully-mechanized coal face roof blasting mechanism comprises a powder cartridge mounted at the top beam of a hydraulic support, wherein the upper end and the lower end of the powder cartridge respectively form an opening in each of the roof and the web plate of the top beam; a locking cover is arranged on the web plate at the opening at the lower end of the powder cartridge. The roof blasting mechanism provided by the utility model is directly designed and mounted on the height direction of the top roof body, so that the structure is simple, and the use is safe and reliable.
Description
Technical field
The utility model relates to a kind of coal seam and adopts longwall top coal caving equipment, relates in particular to a kind of roof of coal face and blows out mechanism.
Background technology
At present, along with the improvement in coal market, have advantage safely and efficiently because thick and super high seam adopt longwall top coal caving compared with separate zone production, separate zone production is essentially longwall top coal caving and replaces.Adopt longwall top coal caving as follows to the applicable elements of top coal hardness, ature of coal and whereabouts property:
The Protodyakonov coefficient value in coal seam should be less than 3, otherwise need take broken measure; In coal seam, contain hard dirt band thickness individual layer and should not exceed 0.5m, otherwise need take broken measure; Immediate roof should have the characteristic falling with top coal, and its height should not be less than 1.0～1.2 times of coal seam thickness.
For above condition, for the thick and super high seam of " two is hard ", " high tenacity ", " naturally emit putting property poor ", need carry out fragmentation or softening processing, Sub-Level Caving that could be safe and reliable by top coal, top board.
The equipment that top board is softening and complex process, cost is high, and top board bating effect is undesirable, at present less employing.
In prior art, mainly adopt top board to blow out fragmentation, equipment and technique are simple, and cost is low, and application is many.But the crushing mechanism using in prior art is by simple cartridge and stifled composition, cartridge position and angle are unreasonable, and demolition effect is undesirable, inconvenient operation; The blocking of pulling down when powder charge is easily lost to other position of support, thereby affects safety; The slag falling down from cartridge pollutes support simultaneously.
Utility model content
The purpose of this utility model is to provide a kind of simple in structure, safe roof of coal face and blows out mechanism.
The purpose of this utility model is achieved through the following technical solutions:
Roof of coal face of the present utility model is blown out mechanism, comprise the cartridge being installed on hydraulic support top beam, the top and bottom of described cartridge are respectively in top board and the web upper shed of described back timber, and the web at described cartridge lower ending opening place is provided with tightening cover.
The technical scheme being provided by above-mentioned the utility model can find out, the roof of coal face that the utility model embodiment provides is blown out mechanism, due to directly in back timber beam height direction design and installation top board blow out mechanism, simple in structure, safe and reliable.
Accompanying drawing explanation
The roof of coal face that Fig. 1 a provides for the utility model embodiment is blown out the structural representation of looking up of mechanism;
Fig. 1 b is that the A-A of Fig. 1 is to structural representation;
Fig. 2 is the structural representation of alignment pin in the utility model embodiment;
Fig. 3 a is the planar structure schematic diagram of tightening cover in the utility model embodiment;
Fig. 3 b is the side structure schematic diagram of tightening cover in the utility model embodiment.
In figure:
1, back timber, the top board of 1-1, back timber, the web of 1-2, back timber, position when position of rotation when 2-1, tightening cover powder charge, 2-2, tightening cover locking, 3, L-type pressing plate, 4, U-shaped pressing plate, 5, alignment pin, 6, cartridge, 7, rib direction.
The specific embodiment
To be described in further detail the utility model embodiment below.
Roof of coal face of the present utility model is blown out mechanism, its preferably the specific embodiment be:
Comprise the cartridge being installed on hydraulic support top beam, the top and bottom of described cartridge are respectively in top board and the web upper shed of described back timber, and the web at described cartridge lower ending opening place is provided with tightening cover.
One side of described tightening cover is hinged by the web of alignment pin and described back timber, and the opposite side of described tightening cover compresses by the U-shaped pressing plate being fixed on back timber.
Described alignment pin is welded on the web of described back timber, and the lower end of described alignment pin is through fixing with split pin after the fraising of described tightening cover one side.
One side of web upper shed place of described back timber is provided with L-type pressing plate, and the opposite side of described tightening cover is fixed on after opening on described L-type pressing plate.
The lower end of described cartridge tilts to rib direction, and the angle of the top board of described cartridge and described back timber is 70 °-80 °, and the angle of the top board of preferred described cartridge and described back timber is 75 °.
The utility model directly in back timber beam height direction design and installation top board blow out mechanism, simple in structure, safe and reliable.
Specific embodiment:
As shown in Fig. 1 a, Fig. 1 b, Fig. 2, Fig. 3 a, Fig. 3 b, comprise cartridge, U-shaped pressing plate and L-type pressing plate, pin assembly, tightening cover assembly, split pin etc.
Cartridge tilts to become with top board 75 degree angles, brave being connected on back timber to rib.Above cartridge, be the naked hole directly contacting with top board, lower face is by sealing lockings such as U-shaped pressing plate and L-type pressing plate, pin assembly, tightening cover assembly, split pins.Pin assembly is brave to be connected on back timber, before brave connecing, assembles with tightening cover assembly.U-shaped pressing plate and L-type pressing plate, split pin are respectively at diverse location locking tightening cover assembly.When powder charge, tightening cover assembly is gone to L-type pressing plate place, completely go to U-shaped pressing plate place locking by it.
Roof of coal face of the present utility model is blown out mechanism and is installed on set cap web, and external form is small and exquisite, does not affect the installation of other parts of support; Simultaneously rationally distributed on support, do not affect miner operating space.
Specific embodiment drops on probation at two working faces of Pingshou, Shanxi Hou Ankuang, effect is fine, is worthy to be popularized.
The above; it is only the preferably specific embodiment of the utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (6)
1. a roof of coal face is blown out mechanism, it is characterized in that, comprise the cartridge being installed on hydraulic support top beam, the top and bottom of described cartridge are respectively in top board and the web upper shed of described back timber, and the web at described cartridge lower ending opening place is provided with tightening cover.
2. roof of coal face according to claim 1 is blown out mechanism, it is characterized in that, a side of described tightening cover is hinged by the web of alignment pin and described back timber, and the opposite side of described tightening cover compresses by the U-shaped pressing plate being fixed on back timber.
3. roof of coal face according to claim 2 is blown out mechanism, it is characterized in that, described alignment pin is welded on the web of described back timber, and the lower end of described alignment pin is through fixing with split pin after the fraising of described tightening cover one side.
4. roof of coal face according to claim 3 is blown out mechanism, it is characterized in that, a side of web upper shed place of described back timber is provided with L-type pressing plate, and the opposite side of described tightening cover is fixed on after opening on described L-type pressing plate.
5. blow out mechanism according to the roof of coal face described in claim 1 to 4 any one, it is characterized in that, the lower end of described cartridge tilts to rib direction, and the angle of the top board of described cartridge and described back timber is 70 °-80 °.
6. roof of coal face according to claim 5 is blown out mechanism, it is characterized in that, the angle of the top board of described cartridge and described back timber is 75 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320843825.0U CN203687799U (en) | 2013-12-19 | 2013-12-19 | Fully-mechanized coal face roof blasting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320843825.0U CN203687799U (en) | 2013-12-19 | 2013-12-19 | Fully-mechanized coal face roof blasting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203687799U true CN203687799U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320843825.0U Withdrawn - After Issue CN203687799U (en) | 2013-12-19 | 2013-12-19 | Fully-mechanized coal face roof blasting mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN203687799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697777B (en) * | 2013-12-19 | 2016-08-17 | 中煤北京煤矿机械有限责任公司 | Roof of coal face blows out mechanism |
-
2013
- 2013-12-19 CN CN201320843825.0U patent/CN203687799U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697777B (en) * | 2013-12-19 | 2016-08-17 | 中煤北京煤矿机械有限责任公司 | Roof of coal face blows out mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140702 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |