CN216588657U - Supporting device for supporting coal rock mass - Google Patents
Supporting device for supporting coal rock mass Download PDFInfo
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- CN216588657U CN216588657U CN202123105004.0U CN202123105004U CN216588657U CN 216588657 U CN216588657 U CN 216588657U CN 202123105004 U CN202123105004 U CN 202123105004U CN 216588657 U CN216588657 U CN 216588657U
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- coal
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Abstract
The utility model provides a supporting device for a top coal rock mass, which comprises a base and a crosspiece arranged above the base, wherein a top supporting column used for supporting the crosspiece is fixedly connected below the crosspiece, a supporting rod with adjustable length is detachably and fixedly connected to the lower end of the top supporting column, a bottom supporting column is detachably and fixedly connected to the lower end of the supporting rod, the main body of the bottom supporting column is cylindrical, external threads are arranged on the outer surface of the bottom supporting column, an annular connecting sleeve is arranged outside the supporting column of the base, internal threads in threaded connection with the external threads are arranged on the inner surface of the connecting sleeve, a cylindrical limiting groove is arranged on the base, and the lower end of the connecting sleeve is embedded into the limiting groove. The device can adjust the height in a flexible way to the actual height that adapts to each strong point to the coal mine tunnel supports, guarantees the support effect.
Description
Technical Field
The utility model belongs to the field of coal mine supporting equipment, and particularly relates to a top coal rock mass supporting device.
Background
Coal resources are one of the irreplaceable energy sources for people at the present stage, and coal mining is generally divided into underground coal mines and open pit coal mines according to the depth of the coal. An open pit coal mine can be excavated by directly stripping a surface soil layer, but a large part of coal mines are deeply buried underground, an underground excavation roadway needs to be excavated, the underground excavation is greatly influenced by geological environment, a supporting device needs to be installed in the roadway during exploitation to prevent the top of the roadway from caving, the internal height of the coal mine roadway is not fixed, the supporting devices with different heights need to be adopted to support according to the actual height of the top of the roadway, a main roadway is generally supported by a hydraulic support at present, but small roadways, temporary roadways and roadways with special geological structures need to ensure enough supporting force or fixed-point supporting at specific positions, the positions can not be supported by hydraulic support frames, and effective supporting devices are needed, but the height of the existing supporting devices is difficult to adjust or inconvenient to adjust, it is difficult to support the roof of the roadway well.
Disclosure of Invention
Aiming at the defects, the utility model provides the jacking coal rock mass supporting device which can flexibly adjust the height so as to be suitable for supporting the actual height of each supporting point of a coal mine tunnel and ensure the supporting effect.
In order to achieve the purpose, the technical scheme of the utility model is that the supporting device for supporting the coal-bearing rock mass comprises a base and a crosspiece arranged above the base, wherein a top supporting column for supporting the crosspiece is fixedly connected below the crosspiece, a supporting rod with adjustable length is detachably and fixedly connected to the lower end of the top supporting column, the supporting rod consists of a plurality of connecting columns, the length of the supporting rod is adjustable by arranging different numbers of connecting columns, and adjacent connecting columns are detachably and fixedly connected; fixedly connected with bottom sprag post can be dismantled to the bracing piece lower extreme, and bottom sprag post's main part is cylindrically, and the bottom sprag post surface is equipped with the external screw thread, and the base support post is equipped with annular adapter sleeve of circle outward, and the adapter sleeve internal surface is equipped with the internal thread with the external screw thread spiro union, be equipped with columniform spacing recess on the base, the embedding of adapter sleeve lower extreme in the spacing recess.
In the scheme, the length of the supporting rod can be adjusted within a larger range by arranging the connecting columns with different numbers, so that the overall height of the coal mine tunnel can be roughly adjusted, when the overall height of the coal mine tunnel is close to that of a coal mine tunnel, the length of the supporting rod can be adjusted within a small range by rotating the connecting sleeve, so that the height of the coal mine tunnel can be finely adjusted, and the top of the tunnel can be well supported by the coal mine tunnel.
The spliced pole, including the cylinder, the cylinder lower extreme is equipped with the screw, the cylinder upper end fixed be equipped with can with screw complex double-screw bolt, through double-screw bolt and screw spiro union, realize dismantling fixed connection between the adjacent spliced pole.
The lower end of the top support column is also provided with a screw hole, and a stud on the connecting column at the uppermost end of the support rod is in threaded connection with the screw hole at the lower end of the top support column.
The upper end of the bottom supporting column is also fixedly provided with a stud, and a screw hole on a connecting column at the lowest end of the supporting rod is in threaded connection with the stud at the upper end of the bottom supporting column.
Preferably, the screw thread spiral direction of the stud at the upper end of the connecting column is the same as that of the stud on the bottom supporting column, and the screw direction of the external screw thread arranged on the bottom supporting column is opposite to that of the stud at the upper end of the connecting column. According to the arrangement, when the adjacent connecting columns are connected, the connecting columns can be firmly connected only by rotating in the same direction, and similarly, the rotating directions of the connecting columns and the top supporting columns and the bottom supporting columns and the connecting columns are the same when the connecting columns are firmly connected, when the connecting sleeves are rotated to increase the overall height of the utility model, the rotating direction of the connecting sleeves is the same as that of the adjacent connecting columns when the connecting columns are locked, and at the moment, the connection between the adjacent connecting columns, the connecting columns and the top supporting columns and the connection between the bottom supporting columns and the connecting columns is firmer.
Preferably, a limiting ring with a circular ring structure is fixedly arranged on the base, the hollow part of the limiting ring is the limiting groove, and the inner diameter of the limiting groove is equal to the outer diameter of the connecting sleeve.
Preferably, a plurality of anti-skid protrusions are fixedly arranged on the upper plane of the crosspiece.
Preferably, a reinforcing rib is fixedly arranged at the joint of the crosspiece and the top supporting column.
Compared with the prior art, the utility model has the following beneficial effects: the height of the utility model can be adjusted roughly and finely, and can be adjusted according to the actual height of the coal mine tunnel, thereby the top of the coal mine tunnel can be well supported, and the utility model is very convenient to use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a connecting column structure;
in the figure: 1. the base, 2, crosspiece, 3, top support column, 4, bracing piece, 5, spliced pole, 6, bottom sprag post, 7, adapter sleeve, 8, cylinder, 9, non-skid raised, 10, strengthening rib, 11, plane, 12, spacing ring.
Detailed Description
The utility model will be further described with reference to examples of embodiments shown in the drawings to which:
as shown in fig. 1 and 2, the supporting device for supporting the coal-bearing rock mass comprises a base 1 and a crosspiece 2 arranged above the base 1, wherein a top supporting column 3 for supporting the crosspiece 2 is fixedly arranged below the crosspiece 2, the lower end of the top supporting column 3 is detachably and fixedly connected with a supporting rod 4 with adjustable length, the supporting rod 4 consists of more than one connecting column 5, the length of the supporting rod 4 is adjustable by arranging different numbers of connecting columns 5, and adjacent connecting columns 5 are detachably and fixedly connected; fixedly connected with bottom sprag post 6 can be dismantled to 4 lower extremes of bracing piece, and the main part of bottom sprag post 6 is cylindrical structure, and 6 surfaces of bottom sprag post are equipped with the external screw thread, and base 1 support column is equipped with ring shaped structure's adapter sleeve 7 outward, and 7 internal surfaces of adapter sleeve are equipped with the internal thread with the external screw thread spiro union, the last spacing recess that is equipped with cylindrical structure of base 1, the fixed spacing ring 12 that is equipped with ring shaped structure on base 1, the cavity position of spacing ring 12 does spacing recess. The lower end of the connecting sleeve 7 is embedded into the limiting groove. And anti-skid protrusions 9 are fixedly distributed on the upper plane of the crosspiece 2. And reinforcing ribs 10 are fixedly arranged at the joints of the crosspieces 2 and the top supporting columns 3.
Spliced pole 5 includes cylinder 8, and 8 lower extremes of cylinder are equipped with the screw, the fixed ability that is equipped with in 8 upper ends of cylinder with screw complex double-screw bolt, can dismantle fixed connection through the mode realization of double-screw bolt and screw spiro union between the adjacent spliced pole 5. The lower end of the top support column 3 is also provided with a screw hole, and a stud on a connecting column 5 at the uppermost end of the support rod 4 is in threaded connection with the screw hole at the lower end of the top support column 3. The upper end of the bottom support column 6 is also fixedly provided with a stud, and a screw hole on the connecting column 5 at the lowest end of the support rod 4 is in threaded connection with the stud at the upper end of the bottom support column 6. The screw thread spiral direction of the stud at the upper end of the connecting column 5 is the same as that of the stud on the bottom supporting column 6, and the screw direction of the external screw thread arranged on the bottom supporting column 6 is opposite to that of the stud at the upper end of the connecting column 5. The outer diameter of the connecting sleeve 7 is equal to the inner diameter of the limiting groove.
When the supporting device is actually used, the number of the connecting columns 5 is required to be set according to the actual height of the coal mine tunnel, so that the height of the supporting device is close to the height of the coal mine tunnel, the base 1 is placed on the ground of the coal mine tunnel, the lower end of the connecting sleeve 7 is embedded into the limiting groove, then the connecting sleeve 7 is rotated, so that the supporting device is further close to the height of the coal mine tunnel until the upper end of the crosspiece 2 is attached to the top of the coal mine tunnel, then the connecting sleeve 7 is rotated, so that the upper end of the crosspiece 2 is supported against the top of the coal mine tunnel, and therefore a good supporting effect can be achieved on the top of the coal mine tunnel. In order to rotate the connecting sleeve 7, two planes 11 which are parallel to each other are arranged on two sides of the outer surface of the connecting sleeve 7, and the connecting sleeve 7 can be rotated only by clamping a wrench in the two planes.
The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.
Claims (8)
1. The utility model provides a support top coal rock mass strutting arrangement which characterized in that: the supporting device comprises a base and a crosspiece arranged above the base, wherein a top supporting column used for supporting the crosspiece is fixedly connected below the crosspiece, a supporting rod with adjustable length is detachably and fixedly connected to the lower end of the top supporting column, the supporting rod consists of a plurality of connecting columns, the length of the supporting rod is adjustable by arranging connecting columns with different numbers, and adjacent connecting columns are detachably and fixedly connected; fixedly connected with bottom sprag post can be dismantled to the bracing piece lower extreme, and bottom sprag post's main part is cylindrically, and the bottom sprag post surface is equipped with the external screw thread, and the base support post is equipped with annular adapter sleeve of circle outward, and the adapter sleeve internal surface is equipped with the internal thread with the external screw thread spiro union, be equipped with columniform spacing recess on the base, the embedding of adapter sleeve lower extreme in the spacing recess.
2. The back-up coal-rock mass support device of claim 1, wherein: the spliced pole, including the cylinder, the cylinder lower extreme is equipped with the screw, the cylinder upper end fixed be equipped with can with screw complex double-screw bolt, through double-screw bolt and screw spiro union, realize dismantling fixed connection between the adjacent spliced pole.
3. The back-up coal-rock mass support device of claim 1, wherein: the lower end of the top support column is also provided with a screw hole, and a stud on the connecting column at the uppermost end of the support rod is in threaded connection with the screw hole at the lower end of the top support column.
4. The back-up coal-rock mass support device of claim 1, wherein: the upper end of the bottom supporting column is also fixedly provided with a stud, and a screw hole on a connecting column at the lowest end of the supporting rod is in threaded connection with the stud at the upper end of the bottom supporting column.
5. The apparatus of claim 1, wherein: the screw thread spiral direction of the stud at the upper end of the connecting column is the same as that of the stud on the bottom supporting column, and the screw direction of the external screw thread arranged on the bottom supporting column is opposite to that of the stud at the upper end of the connecting column.
6. The back-up coal-rock mass support device of claim 1, wherein: the base is fixedly provided with a limiting ring with a circular ring structure, the hollow part of the limiting ring is a limiting groove, and the inner diameter of the limiting groove is equal to the outer diameter of the connecting sleeve.
7. The back-up coal-rock mass support device of claim 1, wherein: the upper plane of the crosspiece is fixedly provided with a plurality of anti-skid bulges.
8. The apparatus of claim 1, wherein: and reinforcing ribs are fixedly arranged at the joints of the crosspieces and the top supporting columns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123105004.0U CN216588657U (en) | 2021-12-12 | 2021-12-12 | Supporting device for supporting coal rock mass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123105004.0U CN216588657U (en) | 2021-12-12 | 2021-12-12 | Supporting device for supporting coal rock mass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216588657U true CN216588657U (en) | 2022-05-24 |
Family
ID=81611013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123105004.0U Active CN216588657U (en) | 2021-12-12 | 2021-12-12 | Supporting device for supporting coal rock mass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216588657U (en) |
-
2021
- 2021-12-12 CN CN202123105004.0U patent/CN216588657U/en active Active
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