CN210152699U - Light hydraulic prop for caving coal - Google Patents
Light hydraulic prop for caving coal Download PDFInfo
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- CN210152699U CN210152699U CN201920761072.6U CN201920761072U CN210152699U CN 210152699 U CN210152699 U CN 210152699U CN 201920761072 U CN201920761072 U CN 201920761072U CN 210152699 U CN210152699 U CN 210152699U
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- hinged
- front extension
- connecting plate
- side protection
- protection plate
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Abstract
The utility model relates to a hydraulic support technical field especially relates to a light-duty caving coal hydraulic support. The hydraulic support comprises a base, a top beam, a stand column hydraulic cylinder and a guide mechanism, wherein the stand column hydraulic cylinder and the guide mechanism are connected between the top beam and the base, a front extension beam is inserted into the front portion of the top beam, two front extension beam hydraulic cylinders are arranged at the bottom of the top beam, piston rods of the front extension beam hydraulic cylinders are connected with the bottom of the front extension beam, a side protection plate is arranged at the front end of the front extension beam, two connecting arms are arranged on two sides of the lower portion of the side protection plate and hinged to the front portion of the front extension beam, a first connecting plate is hinged to the middle of the bottom of the side protection plate, a second connecting plate corresponding to the first connecting plate is hinged to the middle of the bottom of the front extension beam, the other ends of the first connecting plate and the second connecting plate are hinged to piston. This device has increased a side board, can effectually block the coal seam that faces, places the coal seam and leaks down from this position, improves work efficiency.
Description
Technical Field
The utility model relates to a hydraulic support technical field especially relates to a light-duty caving coal hydraulic support.
Background
The main structure of the existing hydraulic support for low-level caving of coal comprises a front canopy, a top beam, a shield beam, a tail beam, a vertical column, a jack, a base and a pushing device thereof, and of course, a hydraulic control system is also needed. Anterior flexible roof beam can only block the coal seam at top in present structure, can not shelter from the coal seam of meeting, and the coal seam leaks down from flexible roof beam front portion easily, and then influences hydraulic support's the gos forward, needs the workman to constantly clear up.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a light hydraulic support for caving coal.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: the utility model provides a light-duty caving coal hydraulic support, includes base, back timber, connects stand pneumatic cylinder and guiding mechanism between back timber and base, the anterior grafting of back timber has the preceding roof beam, and the back timber bottom is equipped with two preceding roof beam pneumatic cylinders, the piston rod of preceding roof beam pneumatic cylinder with the bottom of preceding roof beam is connected, its characterized in that: the front end of the front extension beam is provided with a side protection plate, two connecting arms are arranged on two sides of the lower portion of the side protection plate, the connecting arms are hinged with the front portion of the front extension beam, a first connecting plate is hinged to the middle of the bottom of the side protection plate, a second connecting plate corresponding to the first connecting plate is hinged to the middle of the bottom of the front extension beam, the other ends of the first connecting plate and the second connecting plate are hinged to a piston rod of a side protection plate oil cylinder respectively, and the side protection plate oil cylinder is hinged to the bottom of the front extension beam.
Preferably, the rear portion of top beam articulates there is the shield board, is equipped with the shield board hydro-cylinder between shield board and the guide bracket, it has the picture peg to peg graft in the shield board, the picture peg front portion is fixed with a plurality of and casts the tooth.
Compared with the prior art, the utility model has the advantages that the device is additionally provided with the side protection plate, the coal seam facing the device can be effectively blocked, the coal seam is prevented from leaking from the position, and the working efficiency is improved.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2 is a perspective view of the middle side protection plate of the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided in connection with the accompanying drawings. As shown in fig. 1-2, a light hydraulic support for caving coal comprises a base 1, a top beam 2, a column hydraulic cylinder 3 and a guide mechanism 4, wherein the column hydraulic cylinder 3 and the guide mechanism 4 are connected between the top beam and the base, a front extension beam 5 is inserted in the front of the top beam, two front extension beam hydraulic cylinders 6 are arranged at the bottom of the top beam, a piston rod of each front extension beam hydraulic cylinder is connected with the bottom of the front extension beam, a side guard plate 7 is arranged at the front end of the front extension beam, two connecting arms 8 are arranged on two sides of the lower portion of the side guard plate, and the connecting arms are hinged with the front portion of. The whole structure is compact and stable, and the service life is long.
The middle of the bottom of the side protection plate is hinged with a first connecting plate 9, the middle of the bottom of the front extension beam is hinged with a second connecting plate 10 corresponding to the first connecting plate, the other ends of the first connecting plate and the second connecting plate are respectively hinged with a piston rod of a side protection plate oil cylinder 11, the angle of the side protection plate can be controlled through the two connecting plates, and the side protection plate oil cylinder is hinged with the bottom of the front extension beam. The angle of the side protection plate is adjusted by a side protection plate oil cylinder, the rear part of the top beam is hinged with a shield plate 12, a shield plate oil cylinder 13 is arranged between the shield plate and the guide support, an inserting plate 14 is inserted in the shield plate, mined coal slides into the conveyor belt through the shield plate, the inserting plate and the top beam, and a plurality of cast teeth 15 are fixed at the front part of the inserting plate. The cast teeth are convenient for breaking the coal bed and preventing the blocking of the large coal.
The face-to-face coal seam can be effectively blocked through the side protection plate, the coal seam is prevented from leaking from the position, and the working efficiency is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (2)
1. The utility model provides a light-duty caving coal hydraulic support, includes base, back timber, connects stand pneumatic cylinder and guiding mechanism between back timber and base, the anterior grafting of back timber has the preceding roof beam, and the back timber bottom is equipped with two preceding roof beam pneumatic cylinders, the piston rod of preceding roof beam pneumatic cylinder with the bottom of preceding roof beam is connected, its characterized in that: the front end of the front extension beam is provided with a side protection plate, two connecting arms are arranged on two sides of the lower portion of the side protection plate, the connecting arms are hinged with the front portion of the front extension beam, a first connecting plate is hinged to the middle of the bottom of the side protection plate, a second connecting plate corresponding to the first connecting plate is hinged to the middle of the bottom of the front extension beam, the other ends of the first connecting plate and the second connecting plate are hinged to a piston rod of a side protection plate oil cylinder respectively, and the side protection plate oil cylinder is hinged to the bottom of the front extension beam.
2. The hydraulic support for light caving coal as claimed in claim 1, wherein: the rear portion of back timber articulates there is the shield board, is equipped with the shield board hydro-cylinder between shield board and the guide bracket, it has the picture peg to peg graft in the shield board, the picture peg front portion is fixed with a plurality of and casts the tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920761072.6U CN210152699U (en) | 2019-05-24 | 2019-05-24 | Light hydraulic prop for caving coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920761072.6U CN210152699U (en) | 2019-05-24 | 2019-05-24 | Light hydraulic prop for caving coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210152699U true CN210152699U (en) | 2020-03-17 |
Family
ID=69760356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920761072.6U Active CN210152699U (en) | 2019-05-24 | 2019-05-24 | Light hydraulic prop for caving coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210152699U (en) |
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2019
- 2019-05-24 CN CN201920761072.6U patent/CN210152699U/en active Active
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