Mining roadway supporting device
By designing an adjustable-width mining roadway support device, and using telescopic plates and bolts for fixing, the problem of inconsistent support width was solved, and the compatibility between the support and the roadway was achieved.
Patent Information
- Application Number
- CN202520288704.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-02-21
AI Technical Summary
Common mining roadway support devices lack width adjustment functions, resulting in the support width not being able to match the roadway width, affecting the support adaptability and preventing it from entering the roadway.
Design a mining roadway support device that uses a lower hollow telescopic plate and an upper hollow telescopic plate to move to the left and right sides or the middle, respectively, to drive the roadway roof support plate to expand or shrink the support width, and fix it with bolts to achieve width adjustment.
This achieves the adaptation of support width to roadway width, preventing the support from being unable to enter the roadway and improving support adaptability.
Smart Images
Figure CN223621621U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mining roadway support, and more particularly to mining roadway support devices. Background Technology
[0002] Coal mining is mainly underground, which requires the excavation of a large number of roadways underground. The use of roadway support to keep the roadways unobstructed and the surrounding rock stable is of great significance to the construction and production of coal mines. However, the width of the roadways excavated in different locations is also different. At this time, the roadway support needs to be adjusted according to the width of the roadway.
[0003] Common mining roadway support devices only include support functions, which can support the roadway, but lack the function of width adjustment. This means that the width of the support cannot be guaranteed to match the width of the roadway, which can easily lead to a mismatch between the width of the support and the width of the roadway. As a result, the support cannot enter the interior of the roadway, affecting the problem of support adaptability.
[0004] Therefore, to address the lack of width adjustment functionality in the aforementioned mining roadway support devices, a new type of mining roadway support device can be designed. This device expands the support width by pulling the lower and upper hollow telescopic plates to the left and right sides of the lower and upper middle bearing plates, respectively, thereby causing the two first roadway top support cross plates to move to the left and right sides of the upper middle bearing plate. Conversely, it narrows the support width by pushing the lower and upper hollow telescopic plates to the center of the lower and upper middle bearing plates, respectively, thereby causing the two first roadway top support cross plates to move to the center of the upper middle bearing plate. Utility Model Content
[0005] To overcome the common problem that mining roadway support devices lack width adjustment function, which cannot guarantee that the support width can match the roadway width, it is easy for the support width to be inconsistent with the roadway width, resulting in the support being unable to enter the interior of the roadway and affecting the support adaptability.
[0006] The technical solution of this utility model is as follows: a mining roadway support device, including a lower middle support plate; it also includes an upper middle support plate, a limiting strip, a lower hollow telescopic plate and an upper hollow telescopic plate. The upper middle support plate is arranged above the lower middle support plate. Limiting strips are symmetrically arranged on the left and right sides of both the lower middle support plate and the upper middle support plate. Two lower hollow telescopic plates are symmetrically arranged on the left and right sides of the lower middle support plate, and two upper hollow telescopic plates are symmetrically arranged on the left and right sides of the upper middle support plate.
[0007] Preferably, the support width is widened by pulling the lower and upper hollow telescopic plates to the left and right sides of the lower and upper middle bearing plates, respectively, thereby moving the two first roadway top support cross plates to the left and right sides of the upper middle bearing plate. Conversely, the support width is narrowed by pushing the lower and upper hollow telescopic plates to the middle of the lower and upper middle bearing plates, respectively, thereby moving the two first roadway top support cross plates to the middle of the upper middle bearing plate. After the support width is adjusted, the lower and upper hollow telescopic plates are fixed to the lower and upper middle bearing plates, respectively, by bolts passing through the fixing holes and screwing them into the adjustment holes. This addresses the common problem of mining roadway support devices that only provide support but lack width adjustment functionality. This makes it difficult to ensure that the support width matches the roadway width, leading to mismatches and preventing the support from entering the roadway, thus affecting the support's adaptability.
[0008] Preferably, the left and right ends of the lower middle support plate are inserted into the interiors of two lower hollow telescopic plates, and the left and right ends of the upper middle support plate are inserted into the interiors of two upper hollow telescopic plates.
[0009] Preferably, the lower middle support plate and the upper middle support plate have several symmetrically spaced adjustment holes on the front and rear sides of the top, and the lower hollow telescopic plate and the upper hollow telescopic plate have two symmetrical fixing holes on the front and rear ends of the side near the lower middle support plate.
[0010] Preferably, the lower hollow telescopic plate and the upper hollow telescopic plate are fixed to the lower middle support plate and the upper middle support plate respectively by bolts passing through the fixing holes and screwing them into the adjustment holes.
[0011] Preferably, a lower connecting strip is provided on the side of the lower hollow telescopic plate away from the lower middle support plate, and an upper connecting strip is provided on the side of the upper hollow telescopic plate away from the upper middle support plate. Two support rods are symmetrically provided at the front and rear ends below the lower connecting strip, and the top of the support rods passes through the lower connecting strip and the upper connecting strip and is placed on the top of the upper connecting strip.
[0012] As a preferred embodiment, a first lane top support vertical plate is provided in the middle of the top of both hollow telescopic plates, a first lane top support horizontal plate is provided on the top of the first lane top support vertical plate, and a triangular support block is provided at the bottom end of the first lane top support vertical plate near the upper middle support plate.
[0013] Preferably, a second lane top support vertical plate is provided in the middle of the top of the upper and middle support plate, and a second lane top support horizontal plate is provided on the top of the second lane top support vertical plate.
[0014] The beneficial effects of this utility model are:
[0015] 1. By pulling the lower and upper hollow telescopic plates to the left and right sides of the lower and upper middle bearing plates respectively, the two first roadway top support cross plates are moved to the left and right sides of the upper middle bearing plate respectively, thereby widening the support width. By pushing the lower and upper hollow telescopic plates to the middle of the lower and upper middle bearing plates respectively, the two first roadway top support cross plates are moved to the middle of the upper middle bearing plate respectively, thereby narrowing the support width. After the support width is adjusted, the lower and upper hollow telescopic plates are fixed to the lower and upper middle bearing plates respectively by screwing bolts through the fixing holes and into the adjustment holes. This solves the problem of common mining roadway support devices that only have the function of supporting the roadway but lack the function of width adjustment. They cannot guarantee that the width of the support can match the width of the roadway, which easily leads to the support width not matching the roadway width, resulting in the support not being able to enter the interior of the roadway and affecting the support adaptability problem. Attached Figure Description
[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the mining roadway support device of this utility model.
[0017] Figure 2 The diagram shown is an exploded structural diagram of the mining roadway support device of this utility model.
[0018] Figure 3 The diagram shown is a three-dimensional structural diagram of the bearing plate in the mining roadway support device of this utility model.
[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the telescopic plate of the mining roadway support device of this utility model.
[0020] Explanation of reference numerals in the attached drawings: 1. Lower middle support plate; 2. Upper middle support plate; 3. Limiting strip; 4. Lower hollow telescopic plate; 5. Upper hollow telescopic plate; 6. Adjustment hole; 7. Fixing hole; 8. Lower connecting strip; 9. Upper connecting strip; 10. Support rod; 11. First tunnel top support vertical plate; 12. Triangular support block; 13. First tunnel top support horizontal plate; 14. Second tunnel top support vertical plate; 15. Second tunnel top support horizontal plate. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Please see Figures 1-4This utility model provides an embodiment of a mining roadway support device, including a lower middle support plate 1; it also includes an upper middle support plate 2, limiting strips 3, a lower hollow telescopic plate 4, and an upper hollow telescopic plate 5. The upper middle support plate 2 is arranged above the lower middle support plate 1. Limiting strips 3 are symmetrically arranged on the left and right sides of both the lower middle support plate 1 and the upper middle support plate 2. Two lower hollow telescopic plates 4 are symmetrically arranged on the left and right sides of the lower middle support plate 1, and two upper hollow telescopic plates 5 are symmetrically arranged on the left and right sides of the upper middle support plate 2. By pulling the lower hollow telescopic plates 4 and the upper hollow telescopic plates 5 to the left and right sides of the lower middle support plate 1 and the upper middle support plate 2 respectively, the two first roadway top support cross plates 13 are moved to the left and right sides of the upper middle support plate 2 respectively, thereby expanding the width of the support. Hollow telescopic plate 4 and upper hollow telescopic plate 5 push the lower middle support plate 1 and upper middle support plate 2 respectively to move the two first roadway top support cross plates 13 to the middle of the upper middle support plate 2 respectively, thereby reducing the width of the support. After the width of the support is adjusted, the lower hollow telescopic plate 4 and upper hollow telescopic plate 5 are fixed to the lower middle support plate 1 and upper middle support plate 2 respectively by bolts passing through the fixing hole 7 and screwing them into the adjustment hole 6. This solves the problem that common mining roadway support devices only have the function of support and can support the roadway, but lack the function of width adjustment. They cannot guarantee that the width of the support can match the width of the roadway, which easily leads to the width of the support not matching the width of the roadway, resulting in the support not being able to enter the interior of the roadway and affecting the compatibility of the support.
[0023] Please see Figures 2-4 In this embodiment, a lower connecting strip 8 is provided on the side of the lower hollow telescopic plate 4 away from the lower middle support plate 1, and an upper connecting strip 9 is provided on the side of the upper hollow telescopic plate 5 away from the upper middle support plate 2. Two support rods 10 are symmetrically arranged at the front and rear ends below the lower connecting strip 8. The top of the support rod 10 passes through the lower connecting strip 8 and the upper connecting strip 9 and is placed on the top of the upper connecting strip 9. A first lane top support vertical plate 11 is provided in the middle of the top of both upper hollow telescopic plates 5. A first lane top support horizontal plate 13 is provided on the top of the first lane top support vertical plate 11. The bottom of the first lane top support vertical plate 11 is near the upper middle support plate 2. A triangular support block 12 is provided at the end, and a second roadway top support vertical plate 14 is provided in the middle of the top of the upper middle support plate 2. A second roadway top support horizontal plate 15 is provided on the top of the second roadway top support vertical plate 14. After the support is fixed, it is placed inside the roadway. Then, the bottom end of the support rod 10 is inserted into the soil to prevent the support position from shifting. The two first roadway top support horizontal plates 13 and the second roadway top support horizontal plates 15 support the three sides of the roadway top respectively to mitigate and reduce the movement of the surrounding rock so that the roadway cross section is not excessively reduced, and at the same time prevent the scattered and damaged surrounding rock from collapsing, thus completing the support operation.
[0024] Please see Figures 1-4In this embodiment, the left and right ends of the lower middle support plate 1 are respectively inserted into the interiors of two lower hollow telescopic plates 4, and the left and right ends of the upper middle support plate 2 are respectively inserted into the interiors of two upper hollow telescopic plates 5. Several adjustment holes 6 are symmetrically arranged at equal intervals on the front and rear sides of the top of the lower middle support plate 1 and the upper middle support plate 2. Two fixing holes 7 are symmetrically arranged on the front and rear ends of the top of the lower hollow telescopic plate 4 and the bottom of the upper hollow telescopic plate 5 near the side of the lower middle support plate 1. The lower hollow telescopic plates 4 and the upper hollow telescopic plates 5 are fixed to the lower middle support plate 1 and the upper middle support plate 2 respectively by bolts passing through the fixing holes 7 and screwing them into the adjustment holes 6. When it is necessary to adjust the width of the support according to the width of the roadway, the lower hollow telescopic plates 4 and the upper hollow telescopic plates 5 are respectively adjusted on the left and right sides of the lower middle support plate 1 and the upper middle support plate 2. Pulling the two first roadway top support horizontal plates 13 moves them to the left and right sides of the upper middle support plate 2, thereby widening the support width. By pushing the lower hollow telescopic plate 4 and the upper hollow telescopic plate 5 to the middle of the lower middle support plate 1 and the upper middle support plate 2, respectively, the two first roadway top support horizontal plates 13 move to the middle of the upper middle support plate 2, thereby narrowing the support width. After the support width is adjusted, the lower hollow telescopic plate 4 and the upper hollow telescopic plate 5 are fixed to the lower middle support plate 1 and the upper middle support plate 2 respectively by screwing the bolts through the fixing hole 7 and into the adjustment hole 6. This ensures that the support width can match the roadway width, realizing the width adjustment function and preventing the support width from not matching the roadway width, which would prevent the support from entering the roadway and affect the support adaptability.
[0025] During operation, the width of the support needs to be adjusted according to the width of the roadway. This is achieved by pulling the lower hollow expansion joint 4 and upper hollow expansion joint 5 to the left and right sides of the lower middle support plate 1 and upper middle support plate 2, respectively, thereby moving the two first roadway top support horizontal plates 13 to the left and right sides of the upper middle support plate 2, thus widening the support. Conversely, by pushing the lower hollow expansion joint 4 and upper hollow expansion joint 5 to the center of the lower middle support plate 1 and upper middle support plate 2, respectively, this moves the two first roadway top support horizontal plates 13 to the center of the upper middle support plate 2, thus narrowing the support width. After the support width adjustment is complete, it is secured with bolts. After fixing the hole 7, screw the lower hollow expansion plate 4 and the upper hollow expansion plate 5 into the adjustment hole 6 to fix them to the lower middle support plate 1 and the upper middle support plate 2 respectively, ensuring that the width of the support can match the width of the roadway. After the support is fixed, put it into the roadway. Then insert the bottom end of the support rod 10 into the soil to prevent the position of the support from shifting. The two first roadway top support horizontal plates 13 and the second roadway top support horizontal plates 15 support the three sides of the roadway top respectively to mitigate and reduce the movement of the surrounding rock so that the roadway cross section is not excessively reduced, and at the same time prevent the scattered and damaged surrounding rock from collapsing, thus realizing the function of width adjustment.
[0026] Through the above steps, by pulling the lower hollow expansion joint 4 and the upper hollow expansion joint 5 to the left and right sides of the lower middle support plate 1 and the upper middle support plate 2 respectively, the two first tunnel top support horizontal plates 13 are moved to the left and right sides of the upper middle support plate 2 respectively, thereby widening the support width. By pushing the lower hollow expansion joint 4 and the upper hollow expansion joint 5 to the middle of the lower middle support plate 1 and the upper middle support plate 2 respectively, the two first tunnel top support horizontal plates 13 are moved to the middle of the upper middle support plate 2 respectively, thereby narrowing the support width. After the width adjustment is completed, the lower hollow telescopic plate 4 and the upper hollow telescopic plate 5 are fixed to the lower middle support plate 1 and the upper middle support plate 2 respectively by screwing the bolts through the fixing hole 7 and into the adjustment hole 6. This solves the problem that common mining roadway support devices only have the function of support and can support the roadway, but lack the function of width adjustment. They cannot guarantee that the width of the support can match the width of the roadway, which can easily lead to the support width not matching the width of the roadway, resulting in the support not being able to enter the interior of the roadway and affecting the support adaptability.
Claims
1. A support device for mining roadways, comprising a lower and middle support plate (1); characterized in that: It also includes an upper middle support plate (2), a limiting strip (3), a lower hollow telescopic plate (4) and an upper hollow telescopic plate (5). The upper middle support plate (2) is set above the lower middle support plate (1). The lower middle support plate (1) and the upper middle support plate (2) are symmetrically provided with limiting strips (3) on the left and right sides. The lower middle support plate (1) is symmetrically provided with two lower hollow telescopic plates (4) on the left and right sides. The upper middle support plate (2) is symmetrically provided with two upper hollow telescopic plates (5) on the left and right sides.
2. The mining roadway support device according to claim 1, characterized in that: The left and right ends of the lower middle support plate (1) are inserted into the interior of the two lower hollow telescopic plates (4), and the left and right ends of the upper middle support plate (2) are inserted into the interior of the two upper hollow telescopic plates (5).
3. The mining roadway support device according to claim 1, characterized in that: Several adjustment holes (6) are symmetrically provided at equal intervals on the front and rear sides of the top of the lower middle support plate (1) and the upper middle support plate (2). Two fixing holes (7) are symmetrically provided on the front and rear ends of the lower hollow telescopic plate (4) and the upper hollow telescopic plate (5) near the lower middle support plate (1).
4. The mining roadway support device according to claim 1, characterized in that: The lower hollow telescopic plate (4) and the upper hollow telescopic plate (5) are screwed into the adjustment hole (6) after passing through the fixing hole (7) with bolts and fixed to the lower middle support plate (1) and the upper middle support plate (2) respectively.
5. The mining roadway support device according to claim 1, characterized in that: A lower connecting strip (8) is provided on the side of the lower hollow telescopic plate (4) away from the lower middle support plate (1), and an upper connecting strip (9) is provided on the side of the upper hollow telescopic plate (5) away from the upper middle support plate (2). Two support rods (10) are symmetrically provided at the front and rear ends below the lower connecting strip (8). The top of the support rod (10) passes through the lower connecting strip (8) and the upper connecting strip (9) and is placed on the top of the upper connecting strip (9).
6. The mining roadway support device according to claim 1, characterized in that: The top of each of the two hollow telescopic plates (5) is provided with a first lane top support vertical plate (11), the top of the first lane top support vertical plate (11) is provided with a first lane top support horizontal plate (13), and the bottom of the first lane top support vertical plate (11) near the upper middle support plate (2) is provided with a triangular support block (12).
7. The mining roadway support device according to claim 1, characterized in that: A second lane top support vertical plate (14) is provided in the middle of the top of the upper middle support plate (2), and a second lane top support horizontal plate (15) is provided on the top of the second lane top support vertical plate (14).