A kind of sheathing structure for coal mining machine body

Abstract

The utility model discloses a kind of guard plate structures for coal winning machine body, belong to coal winning machine protection technical field, comprising: body main body and mounting plate;Multiple protective plates, all rotationally connected on mounting plate upper end, multiple protective plate bottom end both sides are equipped with side baffle, multiple side baffles are all set in inclined type;Multiple hydraulic cylinders, all rotationally connected on mounting plate upper end;The utility model, by being equipped with multiple independently rotatable protective plates of coal winning machine body upper end, and being matched with the supporting plate with moving and lifting function, guard plate structure can be dynamically adjusted according to the coal seam thickness change in different coal winning operations, roof and floor undulating characteristics and equipment running posture, so that each protective plate can adhere to local deformation under complex geological conditions, and the flexible displacement of supporting plate further strengthens the adaptability of overall structure to space position, finally makes guard plate system and actual working condition form high degree of agreement, significantly improve the applicability of guard plate structure used for coal winning machine body better.

Description

Technical Field

[0001] This utility model belongs to the field of coal mining machine protection technology, specifically relating to a protective plate structure for the body of a coal mining machine. Background Technology

[0002] The shear plate structure for coal mining machines is a key protective device designed to protect the machine body and ensure operational safety in fully mechanized coal mining equipment. It typically consists of metal plates, hydraulic components, and connecting assemblies, and is flexibly adjustable via bolt fixing or hydraulic drive. Its core principle lies in using high-strength materials to form a physical barrier, combined with a retractable and adjustable design to adapt to operational needs under different mining heights and geological conditions. The shear plate structure for coal mining machines is widely used in medium-thick coal seams to high-mining-height working faces, especially in mining areas with complex geological structures and high roof pressure. The shear plate works synergistically with the hydraulic support's side protection devices to form a dynamic support system, significantly improving the safety and efficiency of fully mechanized mining operations. It is an important technical equipment for ensuring continuous production in high-yield and high-efficiency mines.

[0003] Existing protective plate structures for coal mining machines typically feature rotatable protective plates at the upper part of the machine body. However, current designs generally adopt an integral construction. When implementing protective functions, this structure is difficult to adapt to changes in coal seam dip angles and roof undulations under different geological conditions because the angles of each part are fixed and cannot be adjusted independently. This results in limited matching between the protective plate and the actual working conditions, which in turn restricts the applicability of the protective plate structure in complex geological environments and the full realization of its protective effectiveness. Utility Model Content

[0004] This utility model proposes a protective plate structure for a coal mining machine body to solve the problem that the existing protective plate structure for the coal mining machine body is difficult to adapt to different geological conditions.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective plate structure for a coal mining machine body, comprising:

[0006] The main body of the fuselage and the mounting plate;

[0007] Multiple protective plates are rotatably connected to the upper end of the mounting plate, and side baffles are provided on both sides of the bottom end of the multiple protective plates, and the multiple side baffles are inclined.

[0008] Multiple hydraulic cylinders are rotatably connected to the upper end of the mounting plate, and the output ends of the multiple hydraulic cylinders are rotatably connected to one side of the bottom end of multiple protective plates respectively;

[0009] Multiple support plates are respectively abutted against one side of multiple protective plates, and each of the multiple support plates is rotatably connected to a positioning plate at its bottom end, and each of the multiple positioning plates is provided with a fixing plate at its bottom end.

[0010] In a preferred embodiment, the side walls of the multiple side baffles on one side are provided with guide shafts, and the side walls of the multiple side baffles on the other side are provided with guide grooves adapted to the guide shafts. The multiple guide grooves are all arranged in an arc shape, and the multiple guide shafts are respectively located in the multiple guide grooves and are slidably connected to the side walls of the guide grooves.

[0011] To improve the flexibility of supporting the protective plate, each of the fixed plates is further provided with a positioning sleeve that is adapted to the positioning plate at its upper end. The bottom ends of the positioning plates are respectively located in the positioning sleeves and are slidably connected to the inner wall of the positioning sleeves. Each of the positioning sleeves is rotatably connected with a threaded rod.

[0012] In a preferred embodiment, the bottom ends of the plurality of positioning plates are provided with threaded grooves that are adapted to the threaded rods, and the upper ends of the plurality of threaded rods are respectively located in the plurality of threaded grooves and are slidably connected to the side walls of the threaded grooves.

[0013] In a preferred embodiment, each of the multiple threaded rods is provided with a drive wheel on its outer side, and the two sides of the drive wheel pass through both sides of the positioning sleeve and extend to the outside.

[0014] In a preferred embodiment, each of the plurality of fixing plates is provided with a plurality of fixing bolts, and the upper end of the mounting plate is provided with a plurality of fixing holes adapted to the fixing bolts, and the plurality of fixing bolts are respectively located in the plurality of fixing holes.

[0015] To ensure the stability of the protection for the coal mining machine body, multiple mounting sleeves are rotatably connected to the upper end of the mounting plate. Each of the multiple mounting sleeves is equipped with a matching mounting rod, and the other end of each of the multiple mounting rods is rotatably connected to the bottom end of the multiple protective plates.

[0016] In a preferred embodiment, each of the plurality of mounting sleeves is provided with a limiting spring, and the other end of each of the plurality of limiting springs is respectively disposed at one end of a plurality of mounting rods.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model, through multiple independently rotatable protective plates set on the upper part of the coal mining machine body, and in combination with support plates with moving and lifting functions, allows the protective plate structure to be dynamically adjusted according to the changes in coal seam thickness, roof and floor undulations and equipment operating posture in different coal mining operations. This enables each protective plate to conform to local deformations under complex geological conditions, while the flexible displacement of the support plates further enhances the overall structure's adaptability to spatial position. Ultimately, this makes the protective plate system highly compatible with actual working conditions, significantly improving the applicability of the protective plate structure for the coal mining machine body.

[0019] 2. This utility model, by setting multiple flexibly rotatable mounting sleeves at the upper end of the mounting plate and forming a precise fit with the mounting rods equipped at the bottom of each protective plate, can effectively constrain the rotation position of each protective plate. This ensures that each protective plate maintains independent movement capability while limiting its rotation trajectory to a preset safe range. This not only ensures that the protective plates can be adaptively adjusted according to actual working conditions, but also avoids protective gaps caused by excessive rotation, thereby maintaining stable and reliable protective performance in complex working environments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main appearance of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram showing the connection between the mounting plate and multiple protective plates of the present invention.

[0022] Figure 3 This is a cross-sectional schematic diagram of the mounting plate, protective plate, and positioning plate of the present utility model.

[0023] Figure 4 This diagram illustrates the connection between the support plate, positioning plate, and positioning sleeve in the structure of this utility model.

[0024] Figure 5 This is a cross-sectional schematic diagram of the mounting sleeve of the present utility model.

[0025] Figure 6 for Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0026] In the diagram: 1. Main body; 2. Mounting plate; 3. Protective plate; 4. Side baffle; 5. Hydraulic cylinder; 6. Support plate; 7. Positioning plate; 8. Fixing plate; 9. Guide shaft; 10. Guide groove; 11. Positioning sleeve; 12. Threaded rod; 13. Drive wheel; 14. Fixing bolt; 15. Fixing hole; 16. Mounting sleeve; 17. Mounting rod; 18. Limiting spring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Example 1:

[0029] Please see Figure 1-5 This utility model provides a protective plate structure for the body of a coal mining machine, comprising:

[0030] Main body 1 and mounting plate 2;

[0031] Multiple protective plates 3 are rotatably connected to the upper end of the mounting plate 2. Side baffles 4 are provided on both sides of the bottom end of the multiple protective plates 3. The multiple side baffles 4 are all inclined.

[0032] Multiple hydraulic cylinders 5 are rotatably connected to the upper end of the mounting plate 2, and the output ends of the multiple hydraulic cylinders 5 are rotatably connected to one side of the bottom end of multiple protective plates 3 respectively;

[0033] Multiple support plates 6 are respectively abutted against one side of multiple protective plates 3. The bottom ends of multiple support plates 6 are rotatably connected to positioning plates 7, and the bottom ends of multiple positioning plates 7 are provided with fixing plates 8.

[0034] Specifically, such as Figure 1 and Figure 2 As shown, the side walls of multiple side baffles 4 on one side are provided with guide shafts 9, and the side walls of multiple side baffles 4 on the other side are provided with guide grooves 10 that are adapted to the guide shafts 9. The multiple guide grooves 10 are all arranged in an arc shape. The multiple guide shafts 9 are respectively located in the multiple guide grooves 10 and are slidably connected to the side walls of the guide grooves 10. The multiple guide grooves 10 on one side of the multiple side baffles 4 and the multiple guide shafts 9 on the other side can restrict the multiple protective plates 3 from rotating, thereby preventing coal blocks from entering the main body of the coal mining machine through the gaps between the multiple side baffles 4.

[0035] Specifically, such as Figure 3 , Figure 4 and Figure 6 As shown, the upper ends of multiple fixed plates 8 are provided with positioning sleeves 11 that are adapted to positioning plates 7. The bottom ends of multiple positioning plates 7 are respectively located inside multiple positioning sleeves 11 and are slidably connected to the inner wall of the positioning sleeves 11. Threaded rods 12 are rotatably connected inside multiple positioning sleeves 11.

[0036] Through its design, multiple positioning plates 7 within multiple positioning sleeves 11 can restrict the vertical movement of the support plate 6, thereby adapting to protective plates 3 at different angles and providing stable support, making the protective plate structure for the coal mining machine body more practical.

[0037] Specifically, such as Figure 3 and Figure 6 As shown, the bottom ends of multiple positioning plates 7 are provided with threaded grooves that are compatible with threaded rods 12. The upper ends of multiple threaded rods 12 are respectively located in multiple threaded grooves and are slidably connected to the side walls of the threaded grooves. By rotating the threaded rods 12, the positioning plates 7 can be moved up and down, thereby moving the support plates 6 so that they abut against the bottom ends of the protective plates 3 at different angles. This allows the protective plate structure of the coal mining machine body to effectively protect the coal mining machine body at different angles.

[0038] Specifically, such as Figure 3 and Figure 6As shown, each of the multiple threaded rods 12 is provided with a drive wheel 13 on its outer side. The two sides of the drive wheel 13 pass through the two sides of the positioning sleeve 11 and extend to the outside. The threaded rod 12 can be easily rotated from the outside through the drive wheel 13.

[0039] Specifically, such as Figure 3 , Figure 4 and Figure 6 As shown, multiple fixing plates 8 are provided with multiple fixing bolts 14. The upper end of the mounting plate 2 is provided with multiple fixing holes 15 that are compatible with the fixing bolts 14. The multiple fixing bolts are located in the multiple fixing holes 15 respectively. By fixing the multiple fixing bolts 14 on the fixing plate 8 into the different fixing holes 15 on the mounting plate 2 respectively, the position of the support plate 6 can be flexibly adjusted so that it can be adapted to the protective plate structure of the coal mining machine body at different angles.

[0040] Example 2:

[0041] Please see Figure 1-5 This utility model provides a protective plate structure for the body of a coal mining machine, comprising:

[0042] Main body 1 and mounting plate 2;

[0043] Multiple protective plates 3 are rotatably connected to the upper end of the mounting plate 2. Side baffles 4 are provided on both sides of the bottom end of the multiple protective plates 3. The multiple side baffles 4 are all inclined.

[0044] Multiple hydraulic cylinders 5 are rotatably connected to the upper end of the mounting plate 2, and the output ends of the multiple hydraulic cylinders 5 are rotatably connected to one side of the bottom end of multiple protective plates 3 respectively;

[0045] Multiple support plates 6 are respectively abutted against one side of multiple protective plates 3. The bottom ends of multiple support plates 6 are rotatably connected to positioning plates 7, and the bottom ends of multiple positioning plates 7 are provided with fixing plates 8.

[0046] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, multiple mounting sleeves 16 are rotatably connected to the upper end of the mounting plate 2. Each mounting sleeve 16 is provided with a matching mounting rod 17. The other end of each mounting rod 17 is rotatably connected to the bottom end of multiple protective plates 3.

[0047] Its design, with multiple mounting sleeves 16 and multiple mounting rods 17, can limit the rotation position of multiple protective plates 3, avoiding protective gaps caused by excessive rotation, thereby maintaining stable and reliable protective performance in complex working environments.

[0048] Specifically, such as Figure 5As shown, each of the multiple mounting sleeves 16 is provided with a limiting spring 18, and the other end of the multiple limiting springs 18 is respectively provided at one end of the multiple mounting rods 17. The multiple limiting springs 18 enable the multiple mounting sleeves 16 to be connected to the multiple mounting rods 17 respectively.

[0049] See Figure 1-5 When using the protective plate structure for the coal mining machine body, firstly, multiple hydraulic cylinders 5 need to be activated according to the specific working environment of the coal mining machine. The multiple hydraulic cylinders 5 will drive multiple protective plates 3 to rotate, so that the multiple protective plates 3 can be rotated to a suitable angle, thereby adapting to different geological conditions. Then, according to the angle of the multiple protective plates 3, multiple fixing bolts 14 on multiple fixing plates 8 are respectively installed into multiple corresponding fixing holes 15 on the upper end of the mounting plate 2. Then, the drive wheel 13 is rotated, which will drive the threaded rod 12 to rotate. The threaded rod 12 will drive the positioning plate 7 and the support plate 6 to move up and down, so that the support plate 6 can flexibly abut against the bottom of the protective plate 3 at different angles, ensuring the firmness and stability of its protection, and making the applicability of the protective plate structure for the coal mining machine body better.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective plate structure for a coal mining machine body, characterized in that, include: The main body of the fuselage (1) and the mounting plate (2); Multiple protective plates (3) are rotatably connected to the upper end of the mounting plate (2). Side baffles (4) are provided on both sides of the bottom end of the multiple protective plates (3). The multiple side baffles (4) are all inclined. Multiple hydraulic cylinders (5) are rotatably connected to the upper end of the mounting plate (2), and the output ends of the multiple hydraulic cylinders (5) are rotatably connected to one side of the bottom end of multiple protective plates (3); Multiple support plates (6) are respectively abutted against one side of multiple protective plates (3). The bottom ends of the multiple support plates (6) are rotatably connected to positioning plates (7), and the bottom ends of the multiple positioning plates (7) are provided with fixing plates (8).

2. The protective plate structure for a coal mining machine body according to claim 1, characterized in that: The side walls of the multiple side baffles (4) located on one side are provided with guide shafts (9), and the side walls of the multiple side baffles (4) located on the other side are provided with guide grooves (10) that are adapted to the guide shafts (9). The multiple guide grooves (10) are all arranged in an arc shape. The multiple guide shafts (9) are respectively located in the multiple guide grooves (10) and are slidably connected to the side walls of the guide grooves (10).

3. The protective plate structure for a coal mining machine body according to claim 1, characterized in that: Each of the fixed plates (8) has a positioning sleeve (11) that is compatible with the positioning plate (7) at its upper end. The bottom ends of the multiple positioning plates (7) are located inside the multiple positioning sleeves (11) and are slidably connected to the inner wall of the positioning sleeves (11). Each of the multiple positioning sleeves (11) is rotatably connected with a threaded rod (12).

4. The protective plate structure for a coal mining machine body according to claim 3, characterized in that: The bottom ends of the multiple positioning plates (7) are provided with threaded grooves that are compatible with the threaded rods (12). The upper ends of the multiple threaded rods (12) are respectively located in the multiple threaded grooves and are slidably connected to the side wall of the threaded grooves.

5. The protective plate structure for a coal mining machine body according to claim 3, characterized in that: Each of the threaded rods (12) is provided with a drive wheel (13) on its outer side. The drive wheel (13) passes through both sides of the positioning sleeve (11) and extends to the outside.

6. The protective plate structure for a coal mining machine body according to claim 1, characterized in that: Multiple fixing plates (8) are provided with multiple fixing bolts (14) through them. The upper end of the mounting plate (2) is provided with multiple fixing holes (15) that are adapted to the fixing bolts (14). The multiple fixing bolts are respectively located in the multiple fixing holes (15).

7. The protective plate structure for a coal mining machine body according to claim 1, characterized in that: The upper end of the mounting plate (2) is rotatably connected to a plurality of mounting sleeves (16), and each of the plurality of mounting sleeves (16) is provided with a matching mounting rod (17), and the other end of the plurality of mounting rods (17) is rotatably connected to the bottom end of a plurality of protective plates (3).

8. The protective plate structure for a coal mining machine body according to claim 7, characterized in that: Each of the multiple mounting sleeves (16) is provided with a limiting spring (18), and the other end of each of the multiple limiting springs (18) is respectively provided at one end of each of the multiple mounting rods (17).

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