Top plate supporting device for underground mining of lead-zinc ore

Abstract

The utility model discloses a lead-zinc ore underground mining roof supporting device, which belongs to the technical field of lead-zinc ore mining, and comprises a bottom plate, four mounting plates which are symmetrically distributed are fixedly connected to the top of the bottom plate, the four mounting plates are arranged in a fan-shaped structure, and a telescopic protection assembly is further included. The supporting columns are symmetrically distributed on the two sides of the bottom plate and used for supporting the top plates of different sizes. The four mounting assemblies are located at the four corners of the bottom plate and used for stably mounting the top plate supporting device, and through the design of the telescopic protection assemblies, especially cooperative work of a driving motor, a driving gear and a driven gear and an elastic supporting plate between a first connecting rod and a second connecting rod, the device can flexibly adjust the supporting range, and the supporting effect is improved. The device adapts to roofs of different sizes and shapes, so that the risk of collapse is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lead-zinc mining technology, and more specifically, to a roof support device for underground lead-zinc mining. Background Technology

[0002] Lead-zinc ore is an important metallic mineral resource, widely used in metallurgy, chemical industry, machinery, electrical industry, military and defense industries. With the increasing depletion of surface lead-zinc ore resources, underground mining has become an important way to obtain these resources. Underground mining can make full use of the ore body, increase the mining rate, and at the same time avoid the environmental pollution that may be caused by open-pit mining to a certain extent.

[0003] CN215292553U discloses a roof support device for underground lead-zinc mining, comprising a side plate, a support member, an outer roof plate, a support assembly, and a drive assembly. The outer roof plate is disposed on the side plate, the support member is disposed on the side plate, and the support member is disposed at the lower inner end of the outer roof plate. The drive assembly is disposed on the outer roof plate and the support member, and the support assembly is disposed on the support member. The support assembly includes an inner roof plate, a slider, a push rod, a limiting member, and a fixing rod. The fixing rod is inclinedly disposed on the support member. The slider is slidably sleeved on the fixing rod. One end of the push rod is disposed on the drive assembly, and the other end of the push rod passes through the slider. The limiting member is disposed on the other end of the push rod, and the inner roof plate is disposed on the slider.

[0004] Although the device has many beneficial effects, the following problems still exist: Although the support device can reinforce the external roof, the main function of the support plate is to support and fix the roof to prevent it from collapsing due to geological pressure or mining activities. If the size of the support plate is not compatible with the size of the roof, the support plate may not be able to completely cover the roof, resulting in some areas of the roof not being effectively supported. This will make the roof more prone to deformation and cracking, thereby increasing the risk of collapse. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a roof support device for underground lead-zinc mines, which solves the aforementioned problems.

[0006] To achieve the aforementioned objectives, this utility model provides the following technical solution: a roof support device for underground lead-zinc mines, comprising a base plate, wherein four symmetrically distributed mounting plates are fixedly connected to the top of the base plate, and the four mounting plates are arranged in a fan-shaped structure; and further comprising:

[0007] Telescopic protective components are symmetrically distributed on both sides of the base plate and are used to support top plates of different sizes.

[0008] Four sets of installation components, located at the four corners of the base plate, are used to securely install the top plate support device.

[0009] Preferably, each of the four mounting plates has a second connecting rod fixedly connected inside, the four second connecting rods are perpendicular to the base plate, and the outer surfaces of the four mounting plates are rotatably connected to multiple first connecting rods.

[0010] Preferably, the telescopic protective assembly includes a reinforcing plate, an elastic support plate, and slots. The ends of the plurality of first connecting rods are provided with slots, and the slots corresponding to the plurality of first connecting rods are movably fitted to the outer surface of the corresponding mounting plate. The tops of the four second connecting rods are fixedly connected with reinforcing plates, and elastic support plates are elastically connected between the second connecting rods and the first connecting rods, as well as between two adjacent first connecting rods.

[0011] Preferably, the telescopic protective assembly further includes a drive motor, a drive gear, and a driven gear. Multiple driven gears are rotatably connected inside the two mounting plates on the same side of the base plate. These multiple driven gears are fixedly connected to the outer surface of the corresponding first connecting rod. A drive gear is rotatably connected inside the two mounting plates. The drive gear meshes with the corresponding multiple driven gears. A drive motor is fixedly mounted on the outer surface of both mounting plates. The output ends of the two drive motors are fixedly connected to the corresponding drive gears.

[0012] Preferably, the mounting assembly includes a mounting frame, a threaded tapered rod, a support rod, and a fixed shaft. The mounting frame is fixedly connected to the bottom of the base plate. The mounting frame is triangular in shape. Three circumferentially equidistant fixed shafts are fixedly connected inside the mounting frame. Support rods are rotatably connected to the outer surfaces of the three fixed shafts. A threaded tapered rod is threadedly connected to the center of the mounting frame.

[0013] Preferably, the outer surfaces of the three fixed shafts are provided with a plurality of circumferentially equidistant limiting holes, and the outer surfaces of the three fixed shafts are inserted with limiting posts, and the three limiting posts are inserted with corresponding limiting holes.

[0014] Compared with the prior art, this utility model provides a roof support device for underground lead-zinc mines, which has the following beneficial effects:

[0015] 1. This lead-zinc mine underground mining roof support device, through the design of telescopic protective components, especially the coordinated work of the drive motor, the active gear and the driven gear, and the elastic support plate between the first link and the second link, the device can flexibly adjust the support range to adapt to roofs of different sizes and shapes, thereby reducing the risk of collapse.

[0016] 2. This lead-zinc mine underground mining roof support device adopts a design combining a triangular mounting frame and a threaded cone rod. This not only provides a stable support foundation, but also allows the threaded cone rod to penetrate deeper into the ground, further enhancing the stability of the device. The cooperation between the limiting hole and the limiting column on the fixed shaft effectively fixes the angle of the support rod, preventing unnecessary movement and ensuring the reliability and stability of the support device in long-term use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the active gear structure of this utility model;

[0019] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0020] Figure 4 This utility model Figure 2 Enlarged view of the structure at point B in the middle;

[0021] Figure 5 This is a schematic diagram of the limiting hole structure of this utility model.

[0022] In the diagram: 1. Base plate; 2. Mounting plate; 3. First connecting rod; 4. Second connecting rod; 5. Reinforcing plate; 6. Drive motor; 7. Mounting bracket; 8. Threaded tapered rod; 9. Elastic support plate; 10. Drive gear; 11. Driven gear; 12. Groove; 13. Support rod; 14. Limiting post; 15. Fixed shaft; 16. Limiting hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-5 This utility model provides a technical solution:

[0025] A roof support device for underground lead-zinc mines includes a base plate 1, with four symmetrically distributed mounting plates 2 fixedly connected to the top of the base plate 1. Each of the four mounting plates 2 is arranged in a fan-shaped structure. The device also includes:

[0026] Telescopic protective components are symmetrically distributed on both sides of the base plate 1 and are used to support top plates of different sizes.

[0027] Four sets of mounting components, located at the four corners of the base plate 1, are used to securely install the roof support device. The telescopic protective components can adapt to roofs of different sizes and curvatures. The mounting components not only stabilize the roof support device but also allow for height adjustment of the roof support device.

[0028] Furthermore, each of the four mounting plates 2 has a second connecting rod 4 fixedly connected inside. The four second connecting rods 4 are all perpendicular to the base plate 1. The outer surfaces of the four mounting plates 2 are rotatably connected to multiple first connecting rods 3. The fixed arrangement of the second connecting rods 4 is used to enhance stability.

[0029] Furthermore, the telescopic protective assembly includes a reinforcing plate 5, an elastic support plate 9, and slots 12. The ends of multiple first connecting rods 3 are provided with slots 12, and the slots 12 corresponding to the multiple first connecting rods 3 are movably fitted to the outer surface of the corresponding mounting plate 2. The tops of the four second connecting rods 4 are fixedly connected with reinforcing plates 5. Elastic support plates 9 are elastically connected between the second connecting rods 4 and the first connecting rods 3, as well as between two adjacent first connecting rods 3. The elastic support plates 9 can not only provide elastic support between the first connecting rods 3 and the second connecting rods 4, but also provide support between two adjacent first connecting rods 3, thereby adapting to roofs of different sizes.

[0030] Furthermore, the telescopic protective assembly also includes a drive motor 6, a drive gear 10, and driven gears 11. Multiple driven gears 11 are rotatably connected inside the two mounting plates 2 on the same side of the base plate 1. These driven gears 11 are fixedly connected to the outer surface of the corresponding first connecting rod 3. A drive gear 10 is rotatably connected inside the two mounting plates 2, meshing with the corresponding multiple driven gears 11. A drive motor 6 is fixedly mounted on the outer surface of the two mounting plates 2. The output ends of the two drive motors 6 are fixedly connected to the corresponding drive gears 10. When the drive motor 6 starts, its output ends drive the drive gear 10 to rotate. Since the drive gear 10 meshes with the multiple driven gears 11, and the driven gears 11 are fixedly connected to the outer surface of the corresponding first connecting rod 3, the rotation of the drive gear 10 will drive the first connecting rod 3 to rotate, thereby adjusting the extension degree of the elastic support plate 9.

[0031] Furthermore, the installation components include a mounting frame 7, a threaded tapered rod 8, a support rod 13, and a fixed shaft 15. The mounting frame 7 is fixedly connected to the bottom of the base plate 1. The mounting frame 7 is triangular in shape. Three circumferentially equidistant fixed shafts 15 are fixedly connected inside the mounting frame 7. The support rods 13 are rotatably connected to the outer surfaces of the three fixed shafts 15. A threaded tapered rod 8 is threadedly connected to the center of the mounting frame 7. By rotating the threaded tapered rod 8 installed at the center of the mounting frame 7, it can be made to penetrate deeper into the ground, further stabilizing the entire device.

[0032] Furthermore, the outer surfaces of the three fixed shafts 15 are provided with multiple circumferentially equidistant limiting holes 16, and the outer surfaces of the three fixed shafts 15 are all inserted with limiting posts 14. The three limiting posts 14 are inserted with the corresponding limiting holes 16. Through the cooperation between the limiting holes 16 and the limiting posts 14, the angle of the support rod 13 can be fixed to prevent unnecessary movement during use.

[0033] Working Principle: When workers need to use this lead-zinc mine underground mining roof support device, the triangular mounting frame 7 at the bottom of the base plate 1 provides a stable support foundation. Support rods 13 are rotatably connected to three circumferentially equidistant fixed shafts 15 inside the mounting frame 7. The angle of the support rods 13 can be adjusted according to the actual ground conditions to achieve the best support effect. Simultaneously, the adjustable angle of the support rods 13 can be used to adjust the overall height of the device. By rotating the threaded tapered rod 8 installed at the center of the mounting frame 7, it can be made to penetrate deeper into the ground, further stabilizing the entire roof support device. At the same time, the cooperation of the limiting holes 16 and limiting posts 14 on the outer surface of the three fixed shafts 15 can fix the angle of the support rods 13, preventing unnecessary movement during use. Multiple first connections on the outer surface of the four mounting plates 2... The rod 3 is movably fitted with the mounting plate 2 through the slot 12 at its end, which allows the first connecting rod 3 to rotate within a certain range. The reinforcing plate 5 fixed to the top of the second connecting rod 4 provides additional strength to the entire telescopic protective assembly. When the support range needs to be adjusted, the drive motor 6 starts, and its output end drives the drive gear 10 to rotate. Since the drive gear 10 is meshed with multiple driven gears 11, and the driven gears 11 are fixedly connected to the outer surface of the corresponding first connecting rod 3, the rotation of the drive gear 10 will drive the first connecting rod 3 to rotate, thereby adjusting the extension degree of the elastic support plate 9. The elastic support plate 9 can not only provide elastic support between the first connecting rod 3 and the second connecting rod 4, but also provide support between two adjacent first connecting rods 3, thereby adapting to top plates of different sizes and curvatures.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A roof support device for underground lead-zinc mining, comprising a bottom plate (1), characterized in that: The top of the base plate (1) is fixedly connected to four symmetrically distributed mounting plates (2), all four mounting plates (2) are arranged in a fan shape, and further include: Telescopic protective components are symmetrically distributed on both sides of the base plate (1) and are used to support top plates of different sizes. Four sets of installation components are located at the four corners of the base plate (1) for the secure installation of the top plate support device.

2. The roof support device for underground lead-zinc mines according to claim 1, characterized in that: The interior of each of the four mounting plates (2) is fixedly connected with a second connecting rod (4), and the four second connecting rods (4) are perpendicular to the base plate (1). The outer surfaces of the four mounting plates (2) are rotatably connected with multiple first connecting rods (3).

3. The roof support device for underground lead-zinc mines according to claim 2, characterized in that: The telescopic protective assembly includes a reinforcing plate (5), an elastic support plate (9), and a slot (12). The ends of multiple first connecting rods (3) are provided with slots (12). The slots (12) corresponding to multiple first connecting rods (3) are movably fitted to the outer surface of the corresponding mounting plate (2). The tops of the four second connecting rods (4) are fixedly connected with reinforcing plates (5). The second connecting rods (4) are elastically connected to the first connecting rods (3) and to two adjacent first connecting rods (3) with elastic support plates (9).

4. The roof support device for underground lead-zinc mining according to claim 1, characterized in that: The telescopic protective assembly also includes a drive motor (6), a drive gear (10), and a driven gear (11). The interiors of the two mounting plates (2) on the same side of the base plate (1) are rotatably connected to multiple driven gears (11). The multiple driven gears (11) are fixedly connected to the outer surface of the corresponding first connecting rod (3). The interiors of the two mounting plates (2) are rotatably connected to a drive gear (10). The drive gear (10) meshes with the corresponding multiple driven gears (11). The outer surfaces of the two mounting plates (2) are fixedly mounted with drive motors (6). The output ends of the two drive motors (6) are fixedly connected to the corresponding drive gears (10).

5. A roof support device for underground lead-zinc mining according to claim 1, characterized in that: The mounting assembly includes a mounting bracket (7), a threaded tapered rod (8), a support rod (13), and a fixed shaft (15). The mounting bracket (7) is fixedly connected to the bottom of the base plate (1). The mounting bracket (7) is triangular in shape. Three fixed shafts (15) are fixedly connected inside the mounting bracket (7) and are circumferentially distributed at equal intervals. The support rods (13) are rotatably connected to the outer surfaces of the three fixed shafts (15). The threaded tapered rod (8) is threadedly connected to the center of the mounting bracket (7).

6. A roof support device for underground lead-zinc mines according to claim 5, characterized in that: The outer surfaces of the three fixed shafts (15) are provided with a plurality of circumferentially equidistant limiting holes (16), and the outer surfaces of the three fixed shafts (15) are all inserted with limiting posts (14), and the three limiting posts (14) are inserted with the corresponding limiting holes (16).

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