CN202707103U - Hydraulic support with foldable rear tail beam for extraction of thin coal bed - Google Patents
Hydraulic support with foldable rear tail beam for extraction of thin coal bed Download PDFInfo
- Publication number
- CN202707103U CN202707103U CN 201220379395 CN201220379395U CN202707103U CN 202707103 U CN202707103 U CN 202707103U CN 201220379395 CN201220379395 CN 201220379395 CN 201220379395 U CN201220379395 U CN 201220379395U CN 202707103 U CN202707103 U CN 202707103U
- Authority
- CN
- China
- Prior art keywords
- hydraulic support
- rear tail
- coal bed
- extraction
- foldable rear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to a hydraulic support with a foldable rear tail beam for the extraction of a thin coal bed. Since the rear part of the existing hydraulic support shielding beam for mines lacks a supporting component, a supporting space is impossibly expanded in necessity. In order to solve the technical problem, the hydraulic support with the foldable rear tail beam for the extraction of the thin coal bed comprises a top beam and a base, wherein a hydraulic supporting post is arranged between the top beam and the base; the front part of the top beam is provided with a forepoling beam; and the rear part of the top beam is provided with a shielding beam. The hydraulic support with the foldable rear tail beam for the extraction of the thin coal bed is characterized in that the foldable rear tail beam is connected onto the shielding beam in a hinging way; the middle part of the foldable rear tail beam is connected with one end of a hydraulic telescoping cylinder in the hinging way; and the other end of the hydraulic telescoping cylinder is connected onto the base in the hinging way. Due to such a design, when necessary, the foldable rear tail beam can be supported by the hydraulic telescoping cylinder for the supporting space behind the hydraulic support; and in addition, the hydraulic support with the foldable rear tail beam for the extraction of the thin coal bed has the advantages of simple structure, convenience in use and large protection space, thereby being widely applicable for being used in various underground mines, particularly being applicable for operations such as excavating a tunnel, extracting the thin coal bed and retaining a gob-side entry.
Description
Technical field
The utility model relates to the folding rear tail boom hydraulic support of a kind of thin seam mining band.
Background technology
Existing mine comprises back timber and pedestal with hydraulic support, is provided with one or more hydraulic props between the two, and the back timber front portion is provided with forestope, and the back timber rear portion is provided with caving shield, and the caving shield rear portion lacks the supporting parts, can't enlarge where necessary support space.
The utility model content
The technical problems to be solved in the utility model is the defects that how to overcome prior art, provides a kind of thin seam mining band folding rear tail boom hydraulic support.
For solving the problems of the technologies described above, the tail boom hydraulic support comprised back timber and pedestal after this thin seam mining band was folding, be provided with hydraulic prop between the two, the back timber front portion is provided with forestope, the back timber rear portion is provided with caving shield, it is characterized in that: also be provided with on the caving shield and be hinged with a folding rear tail boom, tail boom middle part was hinged on an end of a hydraulically extensible cylinder after this was folding, and the other end of this hydraulically extensible cylinder is hinged on the pedestal.So design in case of necessity, can be passed through the hydraulically extensible cylinder, will fold rear tail boom and prop up, hydraulic support rear portion support space.
As optimization, described forestope can stretch front and back on back timber, and the forestope bottom is provided with projection, and this projection and back timber are provided with a horizontal hydraulic pressure telescoping cylinder, moves forward and backward so as to driving forestope.So design, as required mobile forestope.
As optimization, be equipped with junction plate before and after the described pedestal, have through hole on this junction plate.So design when needing the towing mobile hydraulic support, can be installed advancing jack at junction plate, conveniently moving.
The tail boom hydraulic support had advantage simple in structure, easy to use, that protective zone is large after the utility model thin seam mining band was folding, and extensively applicable various underground mines use, and are particularly suitable for the operations such as tunnelling, thin seam mining and gob side entry retaining.
Description of drawings
The tail boom hydraulic support is described further after folding to this thin seam mining band below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of the folding rear tail boom hydraulic support of this thin seam mining band.
Among the figure: 1 is that back timber, 2 is junction plate for horizontal hydraulic pressure telescoping cylinder, 10 for projection, 9 for hydraulically extensible cylinder, 8 for tail boom after folding, 7 for caving shield, 6 for forestope, 5 for hydraulic prop, 4 for pedestal, 3.
The specific embodiment
Embodiment one: as shown in Figure 1, tail boom hydraulic support after this thin seam mining band is folding, comprise back timber 1 and pedestal 2, be provided with hydraulic prop 3 between the two, back timber 1 front portion is provided with forestope 4, and the back timber rear portion is provided with caving shield 5, it is characterized in that: also be provided with on the caving shield 5 and be hinged with a folding rear tail boom 6, tail boom 6 middle parts were hinged on an end of a hydraulically extensible cylinder 7 after should folding, and the other end of this hydraulically extensible cylinder 7 is hinged on the pedestal 2.
Described forestope 4 can stretch front and back on back timber 3, and forestope 4 bottoms are provided with projection 8, and this projection 8 is provided with a horizontal hydraulic pressure telescoping cylinder 9 with back timber 3, moves forward and backward so as to driving forestope 4.
Described pedestal 2 front and back are equipped with junction plate 10, have through hole on this junction plate 10.
Claims (3)
1. tail boom hydraulic support after a thin seam mining band folds, comprise back timber and pedestal, be provided with hydraulic prop between the two, the back timber front portion is provided with forestope, the back timber rear portion is provided with caving shield, it is characterized in that: also be provided with on the caving shield and be hinged with a folding rear tail boom, tail boom middle part was hinged on an end of a hydraulically extensible cylinder after this was folding, and the other end of this hydraulically extensible cylinder is hinged on the pedestal.
2. tail boom hydraulic support after thin seam mining band as claimed in claim 1 folds, it is characterized in that: described forestope can stretch front and back on back timber, the forestope bottom is provided with projection, and this projection and back timber are provided with a horizontal hydraulic pressure telescoping cylinder, moves forward and backward so as to driving forestope.
3. the folding rear tail boom hydraulic support of thin seam mining band as claimed in claim 1 or 2 is characterized in that: be equipped with junction plate before and after the described pedestal, have through hole on this junction plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220379395 CN202707103U (en) | 2012-08-01 | 2012-08-01 | Hydraulic support with foldable rear tail beam for extraction of thin coal bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220379395 CN202707103U (en) | 2012-08-01 | 2012-08-01 | Hydraulic support with foldable rear tail beam for extraction of thin coal bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202707103U true CN202707103U (en) | 2013-01-30 |
Family
ID=47587412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220379395 Expired - Lifetime CN202707103U (en) | 2012-08-01 | 2012-08-01 | Hydraulic support with foldable rear tail beam for extraction of thin coal bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202707103U (en) |
-
2012
- 2012-08-01 CN CN 201220379395 patent/CN202707103U/en not_active Expired - Lifetime
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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: 20130130 |