CN221002795U - Roadway support device for coal mining - Google Patents
Roadway support device for coal mining Download PDFInfo
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- CN221002795U CN221002795U CN202322739691.4U CN202322739691U CN221002795U CN 221002795 U CN221002795 U CN 221002795U CN 202322739691 U CN202322739691 U CN 202322739691U CN 221002795 U CN221002795 U CN 221002795U
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- supporting
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- 239000003245 coal Substances 0.000 title claims abstract description 20
- 238000005065 mining Methods 0.000 title claims abstract description 17
- 230000008093 supporting effect Effects 0.000 claims abstract description 56
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model discloses a roadway supporting device for coal mining, which comprises two supporting wall plates symmetrically fixed on the side wall of a roadway, wherein the two supporting wall plates are detachably provided with a cross beam plate through a chute arranged at the upper end part of the supporting wall plates, two fixing pieces are symmetrically arranged on the cross beam plate, and an elastic arch plate is commonly arranged between the two fixing pieces; the fixing piece comprises a fixing base arranged on the beam plate, a hydraulic cylinder is arranged on the fixing base, a connecting seat is arranged at the upper end of the hydraulic cylinder, and two end parts of the elastic arch plate are respectively and rotatably arranged on the two connecting seats. The utility model supports the top of the tunnel by using the independent or synchronous hydraulic lifting elastic arch plate, supports the elastic arch plate and supports the side wall of the tunnel by matching with a supporting structure consisting of two supporting wall plates and a beam plate, realizes the non-blocking support in the middle of the tunnel and can be adjusted according to the tunnel change.
Description
Technical Field
The utility model relates to the technical field of roadway support, in particular to a roadway support device for coal mining.
Background
In the coal mining engineering, a coal mining roadway is required to be opened first, mining equipment is transported through the roadway, and the coal mine is transported. In the opening process of the roadway, the side wall and the top of the roadway are required to be supported so as to avoid the collapse of the side wall and the top of the roadway.
The existing roadway support device is a support structure formed by matching a hydraulic support frame with a telescopic support frame, and when the roadway support device is used, the length of the telescopic support frame and the telescopic length of the hydraulic support frame are adjusted according to the size of a roadway and the concave condition of the inner wall of the roadway, so that the telescopic support frame and the hydraulic support frame are propped against the inner wall of the roadway.
However, in the existing roadway support device, in order to improve the support capacity, a hydraulic support frame is usually required to be arranged in the middle of the roadway, so that the middle of the roadway is blocked, and the traffic capacity of the roadway is affected; and telescopic bracket and hydraulic support frame are the some supports, and the supporting effect is general to need cooperate the roof to support, and the roof is fixed knot structure, can't adjust according to the roughness of tunnel roof, then exist some roof can't support on the roof of tunnel, like tunnel narrowing, tunnel widening etc. the roof of fixed knot structure can't adapt to the tunnel change.
Therefore, when the existing supporting device supports the inner wall of the roadway, the existing supporting device cannot be adjusted according to roadway changes, and the middle supporting frame of the existing supporting device can influence roadway traffic capacity.
Disclosure of utility model
The utility model aims to provide a roadway support device for coal mining, which solves the technical problems that in the prior art, the roadway support device cannot be adjusted according to roadway changes, and the middle support frame can influence roadway traffic capacity.
In order to solve the technical problems, the utility model specifically provides the following technical scheme:
The roadway support device for coal mining comprises two support wall plates symmetrically fixed on the side wall of a roadway, wherein the two support wall plates are detachably provided with a cross beam plate through a chute arranged at the upper end part of the support wall plates, two fixing pieces are symmetrically arranged on the cross beam plate, and an elastic arch plate is commonly arranged between the two fixing pieces;
The fixing piece comprises a fixing base which is arranged on the cross beam plate, a hydraulic cylinder is arranged on the fixing base, a connecting seat is arranged at the upper end of the hydraulic cylinder, and two end parts of the elastic arch plate are respectively and rotatably arranged on the two connecting seats;
the hydraulic cylinder controls the connecting seat and the elastic arch plate to rise so that the vault of the elastic arch plate is tightly supported against the top wall of the roadway;
the two hydraulic cylinders can synchronously lift or independently lift.
As a preferable scheme of the utility model, the elastic arch plate comprises an elastic plate, two ends of the elastic plate are respectively provided with a connecting plate, and the connecting plates are rotatably arranged on the connecting seat;
After the elastic plate is installed with the connecting seat through the connecting plate, the elastic plate is bent and arched upwards to form an arch structure.
As a preferable scheme of the utility model, the beam plate comprises sliding plates which are arranged in the two sliding grooves in a sliding way, an arc-shaped plate is arranged between the two sliding plates, and the inner arc sides of the two arc-shaped plates are oppositely arranged;
The two ends of the two arc-shaped plates are clamped and fixed by the two fixing bases and are abutted against each other.
As a preferable scheme of the utility model, the middle parts of the two arc-shaped plates are provided with adjusting bolts penetrating through the two arc-shaped plates, and the two ends of each adjusting bolt are sleeved with fastening springs fixed on the arc-shaped plates.
As a preferable scheme of the utility model, a plurality of guide posts are arranged on the elastic plate in a sliding penetrating way, the upper end of each guide post is provided with a top plate, and the lower end of each guide post is provided with a limiting piece;
And each guide post is sleeved with a supporting spring fixed on the top plate and the elastic plate, and the top plate is propped against the top wall of the roadway.
As a preferable scheme of the utility model, the side wall of each supporting wall plate is provided with a supporting frame, the upper ends of the two supporting frames are jointly provided with a supporting plate, and the supporting plates are propped against the bottom of the middle section of the cross beam plate.
Compared with the prior art, the utility model has the following beneficial effects:
The utility model supports the top of the tunnel by using the independent or synchronous hydraulic lifting elastic arch plate, supports the elastic arch plate and supports the side wall of the tunnel by matching with a supporting structure consisting of two supporting wall plates and a beam plate, realizes the non-blocking support in the middle of the tunnel and can be adjusted according to the tunnel change.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
FIG. 1 is a schematic diagram of a roadway support device for coal mine exploitation according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a part of a fixing part of a roadway support device for coal mine exploitation according to an embodiment of the utility model;
FIG. 3 is a schematic view of a cross beam plate part of a roadway support device for coal mine exploitation according to an embodiment of the utility model;
Fig. 4 is a schematic view of a part of a structure of an elastic plate of a roadway support device for coal mine exploitation according to an embodiment of the utility model.
Reference numerals in the drawings are respectively as follows:
1-supporting a wallboard; 2-a cross beam plate; 3-fixing parts; 4-elastic arch plates;
11-a chute; 12-supporting frames; 13-a support plate; 21-a skateboard; 22-arc plates; 23-adjusting bolts; 24-fastening a spring; 31-a fixed base; 32-a hydraulic cylinder; 33-connecting seats; 41-spring plates; 42-connecting plates; 43-guide post; 44-top plate; 45-limiting pieces; 46-supporting springs.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 and 2, the present utility model provides a roadway support device for coal mining, comprising two support wall plates 1 symmetrically fixed on the side wall of a roadway, wherein the two support wall plates 1 are detachably provided with a beam plate 2 through a chute 11 arranged at the upper end part of the support wall plates, two fixing pieces 3 are symmetrically arranged on the beam plate 2, and an elastic arch plate 4 is commonly arranged between the two fixing pieces 3;
The fixing piece 3 comprises a fixing base 31 arranged on the cross beam plate 2, a hydraulic cylinder 32 is arranged on the fixing base 31, a connecting seat 33 is arranged at the upper end of the hydraulic cylinder 32, and two end parts of the elastic arch plate 4 are respectively rotatably arranged on the two connecting seats 33;
Wherein, the hydraulic cylinder 32 controls the connecting seat 33 and the elastic arch plate 4 to rise, so that the vault of the elastic arch plate 4 is tightly supported against the top wall of the roadway;
The two hydraulic cylinders 32 can be lifted synchronously or independently.
The supporting device of the embodiment mainly utilizes the supporting wall plates 1 to support two side walls of a roadway, and utilizes the transverse beam plates 2 to be arranged between the two supporting wall plates 1 so as to prevent the two supporting wall plates 1 from inward movement caused by collapse of the side walls of the roadway, thereby improving the supporting capacity of the supporting wall plates 1 to the inner wall of the roadway; and the fixing piece 3 is matched with the elastic arch plate 4, so that the hydraulic cylinder 32 can push the elastic arch plate 4 to move upwards, the elastic arch plate 4 abuts against the top wall of a roadway to support the roadway, the supporting surface is wider, and the slump preventing capability of the roadway is improved.
Compared with the existing supporting device adopting the hydraulic support and the telescopic support, the supporting device of the embodiment has the following advantages:
The elastic arch plate 4 is fixed on the beam plate 2 through the fixing piece 3, and a support is not required to be provided in the middle part, so that the traffic capacity of a roadway is not influenced;
the elastic arch plate 4 is adopted to support the top of the roadway, so that the supporting surface is wide, the supporting force is provided by the supporting wall plates 1 at the two sides, and the supporting strength is higher;
The beam plate 2, the fixing piece 3 and the elastic arch plate 4 are of a preassembled structure, namely, the installation can be completed outside a roadway or in a factory, in the roadway support process, the supporting wall plate 1 is directly fixed, the beam plate 2 is installed on the supporting wall plate 1, the height of the elastic arch plate 4 can be adjusted to complete the support, and the support operation is more convenient;
The two hydraulic cylinders 32 can synchronously lift or independently lift, and then the elastic arch plate 4 can be supported upwards at different inclination angles, so that the supporting and attaching effects are better and the supporting and attaching effects can be adapted to the supporting of uneven surfaces of the top wall of a roadway.
The hydraulic cylinders 32 are connected and controlled through nozzles by pressurizing equipment carried along with the mining tool, so that the two hydraulic cylinders 32 can be connected simultaneously for synchronous lifting control, and one hydraulic cylinder 32 can be connected independently for independent lifting control.
As shown in fig. 1 and 4, the elastic arch plate 4 includes an elastic plate 41, two ends of the elastic plate 41 are provided with connecting plates 42, and the connecting plates 42 are rotatably mounted on the connecting seats 33;
after the elastic plate 41 is mounted with the connection base 33 by the connection plate 42, the elastic plate 41 is bent and arched upward to form an arch structure.
The elastic plate 41 is in an arc-shaped structure slightly bent as it is, and after the two connection plates 42 are installed with the two connection seats 33, the two connection plates 42 press the elastic plate 41 inward, so that the elastic plate 41 is bent in an arch structure, thereby improving its supporting ability.
As shown in fig. 1 and 3, the cross beam plate 2 comprises sliding plates 21 slidably arranged in two sliding grooves 11, an arc-shaped plate 22 is commonly arranged between the two sliding plates 21, and the inner arc sides of the two arc-shaped plates 22 are oppositely arranged;
wherein both ends of the two arc plates 22 are clamped and fixed by the two fixing bases 31 and are abutted.
The sliding plate 21 and the sliding groove 11 are assembled in a sliding manner, so that the installation is more convenient, and when the elastic arch plate 4 abuts against the top wall of a roadway, the extrusion force between the sliding plate 21 and the sliding groove 11 is increased, so that the static friction force between the sliding plate 21 and the sliding groove 11 is increased, and the sliding plate is difficult to fall off in the use process.
The two arc plates 22 are oppositely arranged, so that when the two arc plates 22 are pressed close, the sliding plates 21 on two sides can be pushed away, and the roadway with wider width can be adapted; when the pressing force is reduced by the two arc plates 22, the two sliding plates 21 can be made to approach each other, so that a narrower roadway can be accommodated.
Specifically, when the roadway is wider, the distance between the two supporting wall plates 1 is longer, and the two arc plates 22 are extruded by the clamp, so that the two sliding plates 21 are far away, the whole length of the cross beam plate 2 is increased, and extrusion force is gradually adjusted, so that the two sliding plates 21 can be slidably inserted into the two sliding grooves 11;
When the roadway is narrower, the distance between the two supporting wall plates 1 is closer, and the two arc plates 22 are extruded by the clamp, so that the two sliding plates 21 are far away, the whole length of the cross beam plate 2 is increased, and extrusion force is gradually adjusted, so that the two sliding plates 21 can be slidably inserted into the two sliding grooves 11.
The arc 22 is for having stronger elasticity, adopts the length of two relative installation arc 22 inwards extrudees adjustment crossbeam boards 2, and is more stable and the holding power is stronger than current telescopic bracket (because hollow structure can appear in the telescopic bracket after the extension, structural strength can weaken, and the telescopic length is longer, intensity is less more).
The two arc plates 22 are easy to fall off after being extruded by the clamp for a long time, so that the arc plates 22 rebound to shorten the cross beam plate 2, and the two support wall plates 1 are pulled to fall off from the inner wall of the roadway. Accordingly, a preferred embodiment is provided below to make the pressing of the arcuate plate 22 more reliable.
As shown in fig. 1 and 3, an adjusting bolt 23 penetrating through the two arc plates 22 is provided at the middle part of the two arc plates 22, and fastening springs 24 fixed on the arc plates 22 are sleeved at both ends of the adjusting bolt 23.
The two arc plates 22 can be gradually locked or loosened by rotating the adjusting bolt 23, so that the middle parts of the two arc plates 22 are clamped and separated, and the adjusting bolt 23 is matched with the fastening spring 24, so that the adjusting bolt 23 is subjected to stronger axial thrust, the rotating friction force of the adjusting bolt 23 is increased, and the adjusting bolt is not easy to loosen and fall off.
As the roadway is opened, there may be a partial collapse condition, resulting in a more uneven roadway top, and a less even spring plate 41 may have an insufficient support for the uneven roadway. Accordingly, a preferred embodiment is provided below to enable support of more uneven roadway top walls.
As shown in fig. 4, a plurality of guide posts 43 are slidably disposed through the elastic plate 41, a top plate 44 is disposed at an upper end of each guide post 43, and a limiting member 45 is disposed at a lower end of each guide post 43;
Each guide post 43 is sleeved with a supporting spring 46 fixed on a top plate 44 and an elastic plate 41, and the top plate 44 abuts against the top wall of the roadway.
By providing the plurality of guide posts 43 on the elastic plate 41, the top plate 44 can slide along with the guide posts 43, so that when the top wall of the roadway is supported, the top plate 44 contacts and abuts against the top wall of the roadway, and when the top wall 44 is pressed, the guide posts 43 are pushed to slide downwards and compress the supporting springs 46, and then the supporting force of the elastic plate 41 supports the top wall of the roadway through the supporting springs 46 and the top plate 44.
Since each guide post 43 can slide independently, it is possible to accommodate supporting a more uneven roadway top wall.
Further, as shown in fig. 1, a supporting frame 12 is provided on the side wall of each supporting wall plate 1, the upper ends of the two supporting frames 12 are provided with supporting plates 13 together, and the supporting plates 13 are propped against the bottom of the middle section of the beam plate 2.
The support frame 12 cooperates backup pad 13, can support the middle part of crossbeam board 2 to further improve the bearing capacity of crossbeam board 2, make the tunnel support safer and firm.
The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this application will occur to those skilled in the art, and are intended to be within the spirit and scope of the application.
Claims (6)
1. The roadway support device for coal mining is characterized by comprising two support wall plates (1) symmetrically fixed on the side wall of a roadway, wherein the two support wall plates (1) are detachably provided with a transverse beam plate (2) through a chute (11) arranged at the upper end part of the support wall plates, two fixing pieces (3) are symmetrically arranged on the transverse beam plate (2), and an elastic arch plate (4) is commonly arranged between the two fixing pieces (3);
The fixing piece (3) comprises a fixing base (31) arranged on the beam plate (2), a hydraulic cylinder (32) is arranged on the fixing base (31), a connecting seat (33) is arranged at the upper end of the hydraulic cylinder (32), and two end parts of the elastic arch plate (4) are respectively rotatably arranged on the two connecting seats (33);
The hydraulic cylinder (32) controls the connecting seat (33) and the elastic arch plate (4) to rise so that the arch top of the elastic arch plate (4) is tightly supported against the top wall of the roadway;
The two hydraulic cylinders (32) can synchronously lift or independently lift.
2. A roadway support apparatus for coal mining as claimed in claim 1, wherein,
The elastic arch plate (4) comprises an elastic plate (41), connecting plates (42) are arranged at two ends of the elastic plate (41), and the connecting plates (42) are rotatably arranged on the connecting seat (33);
After the elastic plate (41) is installed with the connection seat (33) through the connection plate (42), the elastic plate (41) is bent and arched upwards to form an arch structure.
3. A roadway support apparatus for coal mining as claimed in claim 1 or 2, wherein,
The beam plate (2) comprises sliding plates (21) which are arranged in the two sliding grooves (11) in a sliding manner, arc-shaped plates (22) are arranged between the two sliding plates (21) together, and the inner arc sides of the two arc-shaped plates (22) are oppositely arranged;
Wherein, both ends of the two arc plates (22) are clamped and fixed by the two fixed bases (31) and are abutted.
4. A roadway support apparatus for coal mining as claimed in claim 3, wherein,
An adjusting bolt (23) penetrating through the two arc plates (22) is arranged in the middle of the two arc plates (22), and fastening springs (24) fixed on the arc plates (22) are sleeved at two ends of the adjusting bolt (23).
5. A roadway support apparatus for coal mining as claimed in claim 2, wherein,
A plurality of guide posts (43) are arranged on the elastic plate (41) in a sliding penetrating manner, a top plate (44) is arranged at the upper end of each guide post (43), and a limiting piece (45) is arranged at the lower end of each guide post (43);
And each guide post (43) is sleeved with a supporting spring (46) fixed on the top plate (44) and the elastic plate (41), and the top plate (44) is propped against the top wall of the roadway.
6. A roadway support apparatus for coal mining as claimed in claim 1, wherein,
Each side wall of the supporting wall plate (1) is provided with a supporting frame (12), the upper ends of the two supporting frames (12) are jointly provided with a supporting plate (13), and the supporting plate (13) is propped against the bottom of the middle section of the beam plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322739691.4U CN221002795U (en) | 2023-10-12 | 2023-10-12 | Roadway support device for coal mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322739691.4U CN221002795U (en) | 2023-10-12 | 2023-10-12 | Roadway support device for coal mining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221002795U true CN221002795U (en) | 2024-05-24 |
Family
ID=91112714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322739691.4U Active CN221002795U (en) | 2023-10-12 | 2023-10-12 | Roadway support device for coal mining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221002795U (en) |
-
2023
- 2023-10-12 CN CN202322739691.4U patent/CN221002795U/en active Active
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