CN203702191U - Telescopic flexible shield support - Google Patents
Telescopic flexible shield support Download PDFInfo
- Publication number
- CN203702191U CN203702191U CN201320875188.5U CN201320875188U CN203702191U CN 203702191 U CN203702191 U CN 203702191U CN 201320875188 U CN201320875188 U CN 201320875188U CN 203702191 U CN203702191 U CN 203702191U
- Authority
- CN
- China
- Prior art keywords
- long beam
- support
- hinged
- hydraulic jack
- long
- 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 - Fee Related
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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The utility model relates to a flexible shield support which is adopted during the exploitation of a heavy pitch coal seam, in particular to a telescopic flexible shield support. The top end of the upper half section of a <-shaped long beam is hinged to one end of a movable beam of which the other end is provided with a bent part; one end of a hydraulic jack is hinged to the middle of the upper half section of the <-shaped long beam; the other end of the hydraulic jack is hinged to the bent position of the movable beam. The axial force applied to the hydraulic jack can be decomposed into two acting forces; one acting force is vertical to the long beam and points to the outer normal direction of the long beam; the other acting force points to the downside along the axial direction of the long beam; the former can eliminate the bent deformation, generated by self gravity of a gangue, of the long beam, and the latter can convert the axial force applied to the movable beam to be stressed by the axial direction of the long beam, and the pressure resistance of the long beam is larger than the bending resistance of the long beam, so the carrying capacity and the stability of the support are improved; the structure is simple, the weight is light, and the transportation and erection are convenient; the middle of the long beam is not easily bent, so the support is not easily inserted into the top bottom coal (rock), easy to move downwards, and strong in suitability for the thickness variation of the coal seam.
Description
Technical field
Flexible type shield, particularly a kind of Telescopic flexible shield support used when the utility model relates to a kind of steeply-inclined seam mining.
Background technology
At present, half-edge coal seam multiselect is exploited with (puppet) inclination flexible type shield coal-mining method.Flexible type shield isolation goaf and excavation for the method, staff mines under the protection of flexible type shield.Existing flexible type shield is that multiple single-side stands connect by flexible wire rope, and this kind of support belongs to fixed bracket, can not heighten, and is difficult to adapt to the variation in coal seam thickness, sometimes has to abandon top coal or ground coal, causes the waste of resource.To steeply-inclined seam mining, scalability supporting structure complexity in the past, weight is large, and inconvenience is transported and is installed; Support easily inserts in top ground coal (rock), moves down difficulty; Long beam middle part is flexible, and under support, working space is little, is unfavorable for workman's operation and Coal Transport.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, long beam not flexible, and a kind of Telescopic flexible shield support that is easy to move down.
For achieving the above object, the utility model is by the following technical solutions:
A kind of Telescopic flexible shield support, comprising: the long beam of " > " type, and " > " type long beam upper semisection top and walking beam one end are hinged, and hydraulic jack one end is hinged with the long beam upper semisection of " > " type middle part, and the other end and walking beam are hinged.
The lower semisection of the long beam of described " > " type is provided with bending.
Described walking beam is provided with bending.
Described hydraulic jack and walking beam are hinged at bending part.
The utility model hydraulic jack is hinged with the long beam upper semisection of " > " type middle part, increase the operating space of more than 60% mining operations, simultaneously, the suffered axial force of hydraulic jack can be decomposed into perpendicular to long beam and point to its exterior normal direction and axially point to two active forces in below along long beam at the long beam upper semisection of " > " type middle part pin joint, the former can eliminate the flexural deformation of long beam because produced by spoil Gravitative Loads, the latter can be converted to long beam by suffered walking beam axle power and axially bear, and long joist support is subject to pressure-resisting ratio bending resistance large, this has just improved supporting capacity and the stability of support.In addition, lower semisection and the walking beam of the long beam of " > " type are equipped with bending, are difficult for inserting in top ground coal (rock) after support force, are convenient to moving down of support.
The beneficial effects of the utility model are: simple in structure, lightweight, and to be convenient to transport and to install, under support, working space is large, to Coal Seam Thickness Change strong adaptability.From mechanics angle, the long beam of support middle part is not flexible, and support is difficult for inserting in top ground coal (rock), is convenient to moving down of support.
Brief description of the drawings
Fig. 1 is structural scheme of mechanism of the present utility model.
Detailed description of the invention
A kind of Telescopic flexible shield support, comprising: the long beam 1 of " > " type, hydraulic jack 2, walking beam 3.Described " > " type long beam 1 upper semisection 1-1 top and walking beam 3 one end are hinged, and walking beam 3 other ends are provided with bending, and hydraulic jack 2 one end are hinged with the long beam of " > " type 1 upper semisection 1-1 middle part, and the other end and walking beam 3 are hinged at bending part.
The lower semisection 1-2 of the long beam 1 of described " > " type is provided with bending.
The utility model hydraulic jack 2 one end are articulated with walking beam 3 bending parts, the other end is hinged with the long beam of " > " type 1 upper semisection 1-1 middle part, when having increased the operating space of more than 60% mining operations, the suffered axial force of hydraulic jack 2 can be decomposed into perpendicular to long beam 1 and point to its exterior normal direction and axially point to two active forces in below along long beam 1 at the long beam 1 upper semisection 1-1 middle part pin joint of " > " type, the former can eliminate the flexural deformation of long beam 1 because produced by spoil Gravitative Loads, the latter can be converted to long beam 1 by suffered walking beam 3 axle power and axially bear, and that long beam 1 bears pressure-resisting ratio bending resistance is large, this has just improved supporting capacity and the stability of support.In addition, lower semisection 1-1 and the walking beam 3 of the long beam 1 of " > " type are equipped with bending, are difficult for inserting in top ground coal (rock) after support force, are easy to moving down of support.
When use, realize the rotation of walking beam 3 by fluid injection in hydraulic jack 2, thereby realize in height flexible of the utility model, to adapt to the variation that coal is thick.
Claims (4)
1. a Telescopic flexible shield support, comprise: the long beam of " > " type (1), it is characterized in that, the long beam of " > " type (1) upper semisection (1-1) top and walking beam (3) one end are hinged, hydraulic jack (2) one end is hinged with the long beam of " > " type (1) upper semisection (1-1) middle part, and the other end and walking beam (3) are hinged.
2. a kind of Telescopic flexible shield support according to claim 1, is characterized in that, the lower semisection (1-2) of the long beam of described " > " type (1) is provided with bending.
3. a kind of Telescopic flexible shield support according to claim 1, is characterized in that, walking beam (3) is provided with bending.
4. a kind of Telescopic flexible shield support according to claim 3, is characterized in that, hydraulic jack (2) is hinged at bending part with walking beam (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320875188.5U CN203702191U (en) | 2013-12-30 | 2013-12-30 | Telescopic flexible shield support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320875188.5U CN203702191U (en) | 2013-12-30 | 2013-12-30 | Telescopic flexible shield support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203702191U true CN203702191U (en) | 2014-07-09 |
Family
ID=51052646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320875188.5U Expired - Fee Related CN203702191U (en) | 2013-12-30 | 2013-12-30 | Telescopic flexible shield support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203702191U (en) |
-
2013
- 2013-12-30 CN CN201320875188.5U patent/CN203702191U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20161230 |