Protective device for two ends of underground fully mechanized coal mining face
Through the modular design and hydraulic adjustment of the two end head protection devices of the underground comprehensive mining face, the problem of traditional devices being unable to be flexibly adjusted is solved, rapid replacement and reduced maintenance costs are achieved, and the safety and reliability of underground operations are improved.
Patent Information
- Application Number
- CN202422494157.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-15
AI Technical Summary
The protective devices at both ends of the existing underground comprehensive mining working face are mostly fixed designs and cannot be flexibly adjusted, resulting in difficulty in replacement, high maintenance costs, and affect safety and production efficiency.
The two-end protective device of the underground comprehensive mining working face is adopted with a modular design. The angles of the top plate and the side plate are adjusted through the hydraulic cylinder, and the insert blocks and bolts are used to realize the rapid disassembly and assembly of the protective plate, realizing modular replacement.
It improves the flexibility and adaptability of the protective device, reduces maintenance costs, extends the service life of the equipment, and improves the safety and reliability of underground operations.
Smart Images
Figure CN223136180U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of protection devices, in particular to a protection device for both ends of a fully-mechanized coal mining face underground. Background Technique
[0002] In a fully-mechanized coal mining face underground in a coal mine, due to the complex geological environment and high-intensity production activities, the roof and side plates at both ends of the working face bear huge pressures and are prone to collapse and deformation. This situation not only threatens the lives of miners but also may cause equipment damage and affect production efficiency. Therefore, in order to ensure the safety and stability of underground operations, underground support protection devices have been widely used.
[0003] These devices are mainly used to support and protect the roof and side plates at both ends of the working face to prevent collapse caused by rock pressure. However, there are still some deficiencies in the current support protection devices in actual applications. First of all, traditional protection devices mostly adopt a fixed design and cannot be flexibly adjusted according to actual needs, resulting in difficulties in replacement after equipment or materials age and relatively high maintenance costs. Content of the Utility Model
[0004] The purpose of the utility model is to provide a protection device for both ends of a fully-mechanized coal mining face underground to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A protection device for both ends of a fully-mechanized coal mining face underground, including a base, a roof plate, an extension block, and side plates. One end of the top surface of the base is provided with a top seat, the top of the top seat is provided with a roof plate, and the roof plate is rotatably installed at the top of the top seat through a first shaft. An extension block is arranged inside the bottom surface of the roof plate, one end of the extension block is provided with a side plate, and the side plate is rotatably installed at one end of the extension block through a second shaft.
[0006] When using a protection device at both ends of an underground fully-mechanized coal mining face in this technical solution, the staff needs to first install this utility model and supply power to it for operation. After this utility model is installed at the position to be used, the staff controls the first hydraulic cylinder to push and pull the roof to adjust the inclination angle of the roof, indirectly making the first protection plate abut against the inner wall surface of the well. After the adjustment of the roof is completed, the staff controls the second hydraulic cylinder to push and pull the side plate to adjust the inclination angle of the side plate, indirectly making the second protection plate abut against the inner side wall surface of the well. After the adjustment of the side plate is completed, this utility model can support and protect the inner wall surface of the well. When the first protection plate and the second protection plate of this utility model are damaged due to long-term contact with the inner wall surface of the well, the staff can turn the first bolt to release the connection between the first protection plate and the roof. After the release, drag the first protection plate and it will detach from the surface of the roof. After the first protection plate is removed, the staff replaces it with a new first protection plate on the surface of the roof, aligns the first insertion block with the first slot and pushes it, so that the first insertion block will be inserted into the inside of the first slot, and indirectly connect the first protection plate with the roof. Finally, use the first bolt to fix and connect it. The removal and installation operations of the second protection plate and the side plate are the same as those of the first protection plate and the roof described above, and the operation can be repeated.
[0007] Preferably, a first protection plate is provided outside the top surface of the roof. A first insertion block is provided inside the first protection plate. The first insertion block is inserted into the inside of the first slot, and the first slot is opened inside the top surface of the roof. Through the cooperation of the first insertion block and the first slot, the first protection plate can be inserted and connected to be installed on the surface of the roof, achieving the effect of convenient plug-in connection for pre-installation and post-removal. The installation of the first protection plate makes the roof not contact the inner wall surface of the well, and uses the first protection plate to indirectly support it, which is convenient for replacement in case of later damage.
[0008] Preferably, one end of the first protection plate is provided with a first bolt, and one end of the first bolt is inserted into the inside of the roof. The setting of the first bolt enables the first protection plate to be fixedly connected to the roof to prevent detachment.
[0009] Preferably, a second protection plate is provided outside the side surface of the side plate. A second insertion block is provided inside the second protection plate. The second insertion block is inserted into the inside of the second slot, and the second slot is opened inside the side surface of the side plate. Through the cooperation of the second insertion block and the second slot, the second protection plate can be inserted and connected to be installed on the surface of the side plate, achieving the effect of convenient plug-in connection for pre-installation and post-removal. The installation of the second protection plate makes the side plate not contact the inner side wall surface of the well, and uses the second protection plate to indirectly support it, which is convenient for replacement in case of later damage.
[0010] Preferably, one end of the second protective plate is provided with a second bolt, and one end of the second bolt is inserted into the inside of the side plate. The setting of the second bolt enables the second protective plate to be fixedly connected to the side plate to prevent detachment.
[0011] Preferably, one end of a second hydraulic cylinder is rotatably connected to the middle of the bottom surface of the extension block, and the other end of the second hydraulic cylinder is rotatably connected to the side surface of the side plate. By providing the second hydraulic cylinder, the side plate and the second protective plate mounted on its surface can adjust the contact angle, achieving the effect of promoting lifting and adjustment.
[0012] Preferably, one end of a first hydraulic cylinder is rotatably connected to both ends of the bottom surface of the extension block, and the other end of the first hydraulic cylinder is rotatably connected to the top surface of the base. By providing the first hydraulic cylinder, the top plate and the first protective plate mounted on its surface can adjust the contact height, achieving the effect of promoting lifting and adjustment.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] 1. By installing the first protective plate and the second protective plate on the top plate and the side plate, and adopting a modular design, the protective device of the present utility model can be quickly replaced after wear or damage, greatly improving the maintenance efficiency. In addition, the modular design improves the flexibility and adaptability of the protective device, extends the service life of the equipment, reduces the maintenance cost, and thus significantly improves the safety and reliability of underground operations. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a front view external structure schematic diagram of the present utility model;
[0016] Figure 2 is a top view separated structure schematic diagram of the top plate and the first protective plate of the present utility model;
[0017] Figure 3 is a bottom view separated structure schematic diagram of the top plate and the first protective plate of the present utility model;
[0018] Figure 4 is a top view separated structure schematic diagram of the side plate and the second protective plate of the present utility model;
[0019] Figure 5 is a bottom view separated structure schematic diagram of the side plate and the second protective plate of the present utility model.
[0020] In the figure: 1. Base; 2. First hydraulic cylinder; 3. Top seat; 4. First shaft; 5. Top plate; 6. First protective plate; 7. Extension block; 8. Second hydraulic cylinder; 9. Second shaft; 10. Side plate; 11. Second protective plate; 12. First slot; 13. First plug; 14. First bolt; 15. Second slot; 16. Second bolt; 17. Second plug. Detailed implementation manners
[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0022] Embodiment 1
[0023] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 shown, a protection device for both ends of an underground fully-mechanized mining face proposed by the present utility model includes a base 1, a top plate 5, an extension block 7 and a side plate 10. One end of the top surface of the base 1 is provided with a top seat 3, the top of the top seat 3 is provided with a top plate 5, and the top plate 5 is rotatably installed at the top of the top seat 3 through a first shaft rod 4. An extension block 7 is arranged inside the bottom surface of the top plate 5, one end of the extension block 7 is provided with a side plate 10, and the side plate 10 is rotatably installed at one end of the extension block 7 through a second shaft rod 9.
[0024] Workers need to first install the present utility model and power it on for operation. After the present utility model is installed at the position to be used, the workers push and pull the top plate 5 by controlling the first hydraulic cylinder 2 to adjust the inclination angle of the top plate 5, indirectly making the first protection plate 6 abut against the inner top wall surface of the well. After the adjustment of the top plate 5 is completed, the workers control the second hydraulic cylinder 8 to push and pull the side plate 10 to adjust the inclination angle of the side plate 10, indirectly making the second protection plate 11 abut against the inner side wall surface of the well. After the adjustment of the side plate 10 is completed, the present utility model can support and protect the inner wall surface of the well. When the first protection plate 6 and the second protection plate 11 of the present utility model are damaged due to long-term contact with the inner wall surface of the well, the workers can loosen the first bolt 14 to release the connection between the first protection plate 6 and the top plate 5. After release, drag the first protection plate 6 and the first protection plate 6 will detach from the surface of the top plate 5. After the first protection plate 6 is removed, the workers replace the new first protection plate 6 onto the surface of the top plate 5, align the first insertion block 13 with the first insertion slot 12 and push, so that the first insertion block 13 will be inserted into the inside of the first insertion slot 12, and indirectly connect the first protection plate 6 and the top plate 5, and finally use the first bolt 14 to fixedly connect them. The removal and installation operations of the second protection plate 11 and the side plate 10 are the same as the removal and installation operations of the first protection plate 6 and the top plate 5 described above, and the operation can be repeated.
[0025] Embodiment 2
[0026] As Figure 1, Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown in ,
[0027] , Figure 1 , Figure 2 , Figure 3 , ,
[0028] , Figure 2 , Figure 3 , ,
[0029] , Figure 1 , Figure 4 , Figure 5 , ,
[0030] , Figure 4 , Figure 5 , , a protection device for both ends of an underground fully-mechanized mining face proposed by the present utility model, compared with the first embodiment, further includes: an outer surface of the top surface of the roof 5 is provided with a first protection plate 6, an inner part of the first protection plate 6 is provided with a first insertion block 13, the first insertion block 13 is inserted into the inside of a first insertion slot 12, and the first insertion slot 12 is opened inside the top surface of the roof 5. One end of the first protection plate 6 is provided with a first bolt 14, and one end of the first bolt 14 is inserted into the inside of the roof 5. An outer surface of the side of the side plate 10 is provided with a second protection plate 11, an inner part of the second protection plate 11 is provided with a second insertion block 17, the second insertion block 17 is inserted into the inside of a second insertion slot 15, and the second insertion slot 15 is opened inside the side of the side plate 10. One end of the second protection plate 11 is provided with a second bolt 16, and one end of the second bolt 16 is inserted into the inside of the side plate 10. The middle of the bottom surface of the extension block 7 is rotatably connected to one end of a second hydraulic cylinder 8, and the other end of the second hydraulic cylinder 8 is rotatably connected to the side of the side plate 10. Both ends of the bottom surface of the extension block 7 are rotatably connected to one end of a first hydraulic cylinder 2, and the other end of the first hydraulic cylinder 2 is rotatably connected to the top surface of the base 1.
[0027] In this embodiment, as shown in Figure 1 , Figure 2 , Figure 3 , ,
[0028] , Figure 2 , Figure 3 , through the cooperation of the first insertion block 13 and the first insertion slot 12, the first protection plate 6 can be inserted and connected to be installed on the surface of the roof 5, achieving the effect that the insertion is convenient for the pre-installation and post-removal. The installation of the first protection plate 6 makes the roof 5 not contact with the inner top wall surface of the well, and uses the first protection plate 6 to indirectly support it, and it is convenient to replace in case of later damage; Figure 1 , Figure 2 and Figure 3
[0028] Figure 2 As shown in Figure 2 , Figure 3 , the setting of the first bolt 14 enables the first protection plate 6 to be fixedly connected to the roof 5 to prevent detachment; Figure 2 and Figure 3
[0029] Figure 1 As shown in Figure 1 , Figure 4 , Figure 5 , ,
[0030] , through the cooperation of the second insertion block 17 and the second insertion slot 15, the second protection plate 11 can be inserted and connected to be installed on the surface of the side plate 10, achieving the effect that the insertion is convenient for the pre-installation and post-removal. The installation of the second protection plate 11 makes the side plate 10 not contact with the inner side wall surface of the well, and uses the second protection plate 11 to indirectly support it, and it is convenient to replace in case of later damage; Figure 1 , Figure 4 and Figure 5
[0030] Figure 4 As shown in Figure 4 , Figure 5 , the setting of the second bolt 16 enables the second protection plate 11 to be fixedly connected to the side plate 10 to prevent detachment; Figure 4 and Figure 5
[0031] As Figure 1 shown, by setting the second hydraulic cylinder 8, the side plate 10 and the second protection plate 11 mounted on its surface can adjust the contact angle, achieving the effect of promoting lifting adjustment;
[0032] As Figure 1 shown, by setting the first hydraulic cylinder 2, the top plate 5 and the first protection plate 6 mounted on its surface can adjust the contact height, achieving the effect of promoting lifting adjustment.
[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An end protection device for an underground fully-mechanized mining face, comprising a base (1), a roof (5), an extension block (7) and side plates (10), characterized in that: One end of the top surface of the base (1) is provided with a top seat (3), the top of the top seat (3) is provided with a top plate (5), and the top plate (5) is rotatably mounted at the top of the top seat (3) through a first shaft rod (4). An extension block (7) is arranged inside the bottom surface of the top plate (5). One end of the extension block (7) is provided with a side plate (10), and the side plate (10) is rotatably mounted at one end of the extension block (7) through a second shaft rod (9).
2. The end protection device for the fully mechanized underground coal mining face according to claim 1, characterized in that: A first protective plate (6) is arranged outside the top surface of the top plate (5). A first insertion block (13) is arranged inside the first protective plate (6). The first insertion block (13) is inserted into the inside of a first slot (12), and the first slot (12) is opened inside the top surface of the top plate (5).
3. The end protection device for both ends of an underground fully-mechanized mining face according to claim 2, characterized in that: One end of the first protective plate (6) is provided with a first bolt (14), and one end of the first bolt (14) is inserted into the inside of the top plate (5).
4. The end protection device for the fully mechanized underground coal mining face according to claim 1, wherein: A second protective plate (11) is arranged outside the side surface of the side plate (10). A second insertion block (17) is arranged inside the second protective plate (11). The second insertion block (17) is inserted into the inside of a second slot (15), and the second slot (15) is opened inside the side surface of the side plate (10).
5. The protection device for both ends of the underground fully mechanized mining face according to claim 4, characterized in that: One end of the second protective plate (11) is provided with a second bolt (16), and one end of the second bolt (16) is inserted into the inside of the side plate (10).
6. The end protection device for both ends of an underground fully mechanized mining face according to claim 1, characterized in that: One end of a second hydraulic cylinder (8) is rotatably connected to the middle of the bottom surface of the extension block (7), and the other end of the second hydraulic cylinder (8) is rotatably connected to the side surface of the side plate (10).
7. The end protection device for both ends of an underground fully-mechanized mining face according to claim 1, wherein: One ends of first hydraulic cylinders (2) are rotatably connected to both ends of the bottom surface of the extension block (7), and the other ends of the first hydraulic cylinders (2) are rotatably connected to the top surface of the base (1).