Gob-side entry retaining gangue blocking device

Abstract

The utility model provides a gob-side entry retaining waste rock blocking device, and relates to the technical field of coal mine production, the gob-side entry retaining waste rock blocking device comprises a mounting seat, a mounting plate and a waste rock blocking plate, one side of the mounting plate is hinged to the mounting seat, the waste rock blocking plate is arranged on the other side of the mounting plate, a transmission assembly is arranged on the mounting seat, and the transmission assembly is arranged on the mounting seat. The transmission assembly is used for driving the mounting plate to rotate, the bottom of the mounting plate is provided with a shielding assembly, the shielding assembly is used for shielding the space below the mounting plate, the mounting plate is provided with a quick disassembly and assembly assembly, and the gangue blocking plate is mounted on the mounting plate through the quick disassembly and assembly assembly; according to the device, by arranging the quick dismounting assembly, quick mounting, fixing, dismounting and replacing of the gangue blocking plate are achieved, and the working efficiency is improved; according to the device, by arranging the transmission assembly, the inclination angle of the gangue blocking plate can be adjusted, and the requirements of different use environments are met; by arranging the shielding assembly, the gap between the gangue blocking plate and the bottom of the roadway is filled, and gangue is prevented from sliding down.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal mine production, in particular to a gangue blocking device for gob-side entry retaining. BACKGROUND

[0002] In order to recover the protective coal pillar left in the traditional mining method, a certain technical means is used to re-support the crossheading of the previous section for use by the next section. This method of retaining the roadway along the edge of the goaf is called gob-side entry retaining. In the application process of gob-side entry retaining technology, the roof of the coal mining face is prone to large-scale collapse in the goaf after mining, causing the gangue to slide to the roadway under the action of gravity. In order to prevent the gangue from sliding into the roadway, a gangue blocking net is usually needed to block it.

[0003] The existing gangue blocking net is prone to damage after a long time of bearing the impact and pressure of the gangue. The installation and disassembly process of the gangue blocking net is complicated and inconvenient to operate, which affects the work efficiency. In addition, the existing gangue blocking net lacks angle adjustment function and cannot be adaptively adjusted according to the roof collapse of the goaf and the shape of the roadway, which cannot meet the needs of different use environments and reduces the gangue blocking effect and safety. SUMMARY

[0004] The purpose of the embodiments of the present application is to provide a gangue blocking device for gob-side entry retaining, which can solve the technical problems that the existing gangue blocking net is prone to damage after a long time of bearing the impact and pressure of the gangue, the installation and disassembly process is complicated and affects the efficiency; at the same time, it lacks angle adjustment function and cannot adapt to different roof collapses of the goaf and shapes of the roadway, which cannot meet the diversified needs and reduces the gangue blocking effect and safety.

[0005] The embodiments of the present application provide a gangue blocking device for gob-side entry retaining, which comprises a mounting seat, a mounting plate and a gangue blocking plate. One side of the mounting plate is hingedly connected to the mounting seat, and the gangue blocking plate is arranged on the other side of the mounting plate. A transmission assembly is arranged on the mounting seat, which is used to drive the mounting plate to rotate. A shielding assembly is arranged at the bottom of the mounting plate, which is used to shield the space below the mounting plate. A quick disassembly and assembly assembly is arranged on the mounting plate, and the gangue blocking plate is installed on the mounting plate through the quick disassembly and assembly assembly.

[0006] The transmission assembly comprises a sleeve and a first screw rod. The sleeve is fixedly arranged on the mounting plate, and the first screw rod is threaded through the sleeve and abuts against the mounting plate.

[0007] A abutting plate is fixedly arranged on the mounting plate, and an arc-shaped groove is formed in the abutting plate. An end of the first screw rod close to the mounting plate is arranged in an arc shape, and the first screw rod abuts against the arc-shaped groove.

[0008] The first screw is fixedly equipped with a first handle.

[0009] The shielding assembly includes a shielding plate, a second screw, a first bevel gear, a second bevel gear, and a first rotating rod. A groove is provided at the bottom of the mounting plate, and the shielding plate is slidably disposed within the groove, extending beyond the bottom of the mounting plate. The second screw and the first rotating rod are rotatably disposed within the groove via bearings. The shielding plate is threaded onto the shielding plate. The first bevel gear is fixedly disposed on the second screw, and the second bevel gear is fixedly disposed on the first rotating rod, with the first bevel gear meshing with the second bevel gear.

[0010] A second handle is fixedly installed on the first rotating rod.

[0011] The quick-release assembly includes a second rotating rod, a connecting sleeve, two first corner protectors, and two second corner protectors. The second rotating rod is rotatably mounted on the mounting plate via a bearing. The connecting sleeve is fixedly sleeved on the second rotating rod. The first corner protectors are fixedly mounted on the connecting sleeve and can limit the top corner of the rock-blocking plate. The second corner protectors are fixedly mounted on the mounting plate and can limit the bottom corner of the rock-blocking plate.

[0012] A third handle is fixedly installed on the second rotating rod.

[0013] The beneficial effects of this utility model are:

[0014] This utility model provides a goaf-stopping device for retaining waste rock. In use, a waste rock retaining plate is installed on a mounting plate via a quick-release assembly. Then, a transmission assembly drives the mounting plate to rotate, changing the tilt angle between the mounting plate and the mounting base through a hinged connection. A shielding assembly then blocks the space below the mounting plate, enabling waste rock retention. This device, with its quick-release assembly, allows for rapid installation, fixing, disassembly, and replacement of the waste rock retaining plate, improving work efficiency. The transmission assembly allows for adjustment of the tilt angle of the waste rock retaining plate to meet the needs of different operating environments. Even when the mounting plate is tilted to its bottom and raised, the shielding assembly still blocks the space below the mounting plate, filling the gap between the waste rock retaining plate and the roadway bottom, preventing waste rock from slipping, and improving the device's waste rock retention effect and operational safety. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall front view structure in some embodiments of this application;

[0017] Figure 2 This is a sectional view of the overall main view structure in some embodiments of this application;

[0018] Figure 3 This is a schematic diagram of the side view structure of the mounting plate and the baffle plate in some embodiments of this application;

[0019] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at point A;

[0020] Figure 5 for Figure 2 A schematic diagram of the enlarged structure at point B.

[0021] The reference numerals in the attached figures are as follows:

[0022] 1. Mounting bracket;

[0023] 2. Mounting plate; 21. Abutment plate; 22. Arc groove; 23. Sliding groove;

[0024] 3. Wastewater baffle;

[0025] 4. Transmission assembly; 41. Sleeve; 42. First screw; 43. First handle;

[0026] 5. Shielding assembly; 51. Shielding plate; 52. Second screw; 53. First bevel gear; 54. Second bevel gear; 55. First rotating rod; 56. Second handle;

[0027] 6. Quick-release assembly; 61. Second rotating rod; 62. Connecting sleeve; 63. First corner protector; 64. Second corner protector; 65. Third handle. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] like Figures 1 to 3As shown in the figure, this application provides a goaf retaining device, including a mounting base 1, a mounting plate 2, and a retaining plate 3. One side of the mounting plate 2 is hinged to the mounting base 1, and the retaining plate 3 is disposed on the other side of the mounting plate 2. A transmission component 4 is provided on the mounting base 1, which is used to drive the mounting plate 2 to rotate. A shielding component 5 is provided at the bottom of the mounting plate 2, which is used to shield the space below the mounting plate 2. A quick-release assembly 6 is provided on the mounting plate 2, and the retaining plate 3 is installed on the mounting plate 2 through the quick-release assembly 6.

[0035] In use, the quick-release assembly 6 is used to install the rock-blocking plate 3 on the mounting plate 2. Then, the transmission assembly 4 drives the mounting plate 2 to rotate. With the hinged engagement between the mounting plate 2 and the mounting base 1, the tilt angle of the mounting plate 2 and the rock-blocking plate 3 is changed. Then, the blocking assembly 5 blocks the space below the mounting plate 2, and the rock-blocking operation can be carried out.

[0036] The device enables rapid installation, fixing, disassembly, and replacement of the rock-blocking plate 3 by incorporating a quick-release assembly 6, thereby improving work efficiency. The device also allows for adjustment of the tilt angle of the rock-blocking plate 3 by incorporating a transmission assembly 4, meeting the needs of different operating environments. Furthermore, the device features a shielding assembly 5, which, even when the mounting plate 2 is tilted to its bottom and raised, still shields the space below the mounting plate 2, filling the gap between the rock-blocking plate 3 and the bottom of the roadway, preventing rock from slipping, and enhancing the device's rock-blocking effect and operational safety.

[0037] like Figure 1 and 2 As shown, in this embodiment, the transmission component 4 includes a sleeve 41 and a first screw 42. The sleeve 41 is fixedly mounted on the mounting plate 2, and the first screw 42 is threaded through the sleeve 41 and abuts against the mounting plate 2.

[0038] When in use, the first screw 42 is rotated. Under the threaded engagement between the first screw 42 and the sleeve 41, the first screw 42 moves and drives the mounting plate 2 to rotate. Under the hinged engagement between the mounting plate 2 and the mounting base 1, the tilt angle of the mounting plate 2 and the baffle plate 3 is changed.

[0039] like Figure 1 and 2 As shown in this embodiment, an abutment plate 21 is fixedly provided on the mounting plate 2. An arc-shaped groove 22 is provided on the abutment plate 21. The end of the first screw 42 near the mounting plate 2 is arc-shaped, and the first screw 42 abuts against the arc-shaped groove 22, which can reduce the frictional resistance between the first screw 42 and the abutment plate 21.

[0040] like Figure 1 and 2As shown in this embodiment, a first handle 43 is fixedly provided on the first screw 42. The first handle 43 makes it easier for the operator to apply force to rotate the first screw 42, thus improving the ease of use.

[0041] like Figures 1 to 4 As shown, in this embodiment, the shielding assembly 5 includes a shielding plate 51, a second screw 52, ​​a first bevel gear 53, a second bevel gear 54, and a first rotating rod 55. A groove 23 is provided at the bottom of the mounting plate 2. The shielding plate 51 is slidably disposed in the groove 23 and can extend out of the bottom of the mounting plate 2. The second screw 52 and the first rotating rod 55 are rotatably disposed in the groove 23 through bearings. The shielding plate 51 is threaded onto the shielding plate 51. The first bevel gear 53 is fixedly disposed on the second screw 52, ​​and the second bevel gear 54 is fixedly disposed on the first rotating rod 55. The first bevel gear 53 and the second bevel gear 54 mesh with each other.

[0042] In use, rotating the first rotating rod 55 drives the second bevel gear 54 to rotate, the second bevel gear 54 drives the first bevel gear 53 to rotate, the first bevel gear 53 drives the second screw 52 to rotate, and the second screw 52 drives the baffle plate 51 to move along the slide groove 23 until the baffle plate 51 blocks the space below the mounting plate 2; the cooperation between the baffle plate 51 and the slide groove 23 plays a guiding and limiting role for the baffle plate 51.

[0043] like Figures 1 to 4 As shown in this embodiment, a second handle 56 is fixedly provided on the first rotating rod 55. The second handle 56 makes it easier for the operator to apply force to rotate the first rotating rod 55, thus improving the ease of use.

[0044] like Figures 1 to 5 As shown, in this embodiment, the quick-release assembly 6 includes a second rotating rod 61, a connecting sleeve 62, two first corner protectors 63, and two second corner protectors 64. The second rotating rod 61 is rotatably mounted on the mounting plate 2 via a bearing. The connecting sleeve 62 is fixedly sleeved on the second rotating rod 61. The first corner protectors 63 are fixedly mounted on the connecting sleeve 62 and can limit the top corner of the rock-blocking plate 3. The second corner protectors 64 are fixedly mounted on the mounting plate 2 and can limit the bottom corner of the rock-blocking plate 3.

[0045] In use, place the rock-blocking plate 3 on the mounting plate 2 and insert the bottom of the rock-blocking plate 3 into the second corner protector 64. The second corner protector 64 limits and fixes the bottom corner of the rock-blocking plate 3. Then, rotate the second rotating rod 61 to drive the connecting sleeve 62 to rotate. The connecting sleeve 62 drives the first corner protector 63 to rotate until the first corner protector 63 is in contact with the mounting plate 2. The first corner protector 63 limits and fixes the top corner of the rock-blocking plate 3. The first corner protector 63 and the second corner protector 64 work together to clamp the rock-blocking plate 3 onto the mounting plate 2.

[0046] likeFigures 1 to 5 As shown in this embodiment, a third handle 65 is fixedly provided on the second rotating rod 61. The third handle 65 makes it easier for the operator to rotate the second rotating rod 61, thus improving the ease of use.

[0047] Working principle: When using the goaf retaining device provided in this application, the retaining plate 3 is placed against the mounting plate 2, and the bottom of the retaining plate 3 is inserted into the second corner protector 64. The second corner protector 64 limits and fixes the bottom corner of the retaining plate 3. Then, the third handle 65 is turned to drive the second rotating rod 61 to rotate. The second rotating rod 61 drives the connecting sleeve 62 to rotate, and the connecting sleeve 62 drives the first corner protector 63 to rotate until the first corner protector 63 is against the mounting plate 2. The first corner protector 63 limits and fixes the top corner of the retaining plate 3. The first corner protector 63 and the second corner protector 64 work together to clamp the retaining plate 3 onto the mounting plate 2. Then, the first handle is turned... 43 drives the first screw 42 to rotate. Under the threaded engagement of the first screw 42 and the sleeve 41, the first screw 42 moves and drives the mounting plate 2 to rotate. Under the hinged engagement of the mounting plate 2 and the mounting base 1, the tilt angle of the mounting plate 2 and the rock-blocking plate 3 is changed. Then, the second handle 56 is rotated to drive the first rotating rod 55 to rotate. The first rotating rod 55 drives the second bevel gear 54 to rotate. The second bevel gear 54 drives the first bevel gear 53 to rotate. The first bevel gear 53 drives the second screw 52 to rotate. The second screw 52 drives the blocking plate 51 to move along the slide groove 23 until the blocking plate 51 blocks the space below the mounting plate 2, and the rock-blocking operation can be carried out.

[0048] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for retaining waste rock along a goaf, characterized in that: The device includes a mounting base (1), a mounting plate (2), and a rock-blocking plate (3). One side of the mounting plate (2) is hinged to the mounting base (1), and the rock-blocking plate (3) is disposed on the other side of the mounting plate (2). A transmission assembly (4) is provided on the mounting base (1) to drive the mounting plate (2) to rotate. A shielding assembly (5) is provided at the bottom of the mounting plate (2) to shield the space below the mounting plate (2). A quick-release assembly (6) is provided on the mounting plate (2), and the rock-blocking plate (3) is installed on the mounting plate (2) through the quick-release assembly (6).

2. The goaf retaining and rock-blocking device according to claim 1, characterized in that: The transmission assembly (4) includes a sleeve (41) and a first screw (42). The sleeve (41) is fixedly mounted on the mounting plate (2). The first screw (42) is threaded through the sleeve (41) and abuts against the mounting plate (2).

3. The goaf retaining and rock-blocking device according to claim 2, characterized in that: An abutment plate (21) is fixedly provided on the mounting plate (2). An arc-shaped groove (22) is provided on the abutment plate (21). The end of the first screw (42) near the mounting plate (2) is arc-shaped, and the first screw (42) abuts against the arc-shaped groove (22).

4. The goaf retaining and rock-blocking device according to claim 2, characterized in that: A first handle (43) is fixedly installed on the first screw (42).

5. The goaf retaining and rock-blocking device according to claim 1, characterized in that: The shielding assembly (5) includes a shielding plate (51), a second screw (52), a first bevel gear (53), a second bevel gear (54), and a first rotating rod (55). The bottom of the mounting plate (2) is provided with a sliding groove (23). The shielding plate (51) is slidably disposed in the sliding groove (23) and can extend out of the bottom of the mounting plate (2). The second screw (52) and the first rotating rod (55) are rotatably disposed in the sliding groove (23) through bearings. The shielding plate (51) is threaded onto the shielding plate (51). The first bevel gear (53) is fixedly disposed on the second screw (52). The second bevel gear (54) is fixedly disposed on the first rotating rod (55). The first bevel gear (53) and the second bevel gear (54) mesh with each other.

6. The goaf retaining and rock-blocking device according to claim 5, characterized in that: A second handle (56) is fixedly installed on the first rotating rod (55).

7. The goaf retaining and rock-blocking device according to claim 1, characterized in that: The quick-release assembly (6) includes a second rotating rod (61), a connecting sleeve (62), two first corner protectors (63) and two second corner protectors (64). The second rotating rod (61) is rotatably mounted on the mounting plate (2) via a bearing. The connecting sleeve (62) is fixedly sleeved on the second rotating rod (61). The first corner protectors (63) are fixedly mounted on the connecting sleeve (62) and can limit the top corner of the rock-blocking plate (3). The second corner protectors (64) are fixedly mounted on the mounting plate (2) and can limit the bottom corner of the rock-blocking plate (3).

8. The goaf retaining and rock-blocking device according to claim 7, characterized in that: A third handle (65) is fixedly installed on the second rotating rod (61).

Images