Coal mining entry retaining supporting device

Abstract

The utility model provides a coal seam mining entry retaining supporting device, and relates to the field of supporting devices.The coal seam mining entry retaining supporting device comprises a first fixing bottom plate, a second fixing bottom plate, a first protection side rod, a second protection side rod and an arched ceiling, and a first driving air cylinder is arranged between the first fixing bottom plate and the first protection side rod; a first driving air cylinder is arranged between the first fixing bottom plate and the first protection side rod, a second driving air cylinder is arranged between the second fixing bottom plate and the second protection side rod, the lower end of the arched ceiling is connected with the multiple supporting columns, and third driving air cylinders are arranged between the first protection side rod and the arched ceiling and between the second protection side rod and the arched ceiling. The height can be adjusted through the first driving air cylinder and the second driving air cylinder, pre-tightening force is applied to a coal seam through the arched ceiling, the side portion of a mining roadway is supported through the first protection side rod and the second protection side rod, multi-point supporting can be carried out, the supporting strength is high, and mining safety is guaranteed.

Description

Technical Field

[0001] This application relates to the field of support devices, and more specifically, to a support device for coal seam mining roadway retention. Background Technology

[0002] In coal mining operations, as the working face advances, supports are used to reinforce the roadway roof. Since the roadway roof is reinforced during the initial excavation, the common support method is bolt and cable anchoring. This type of roof support exposes the ends of the bolts, cables, and support plates. Existing support systems have relatively poor strength and pose a risk of collapse, thus requiring improvement. Summary of the Invention

[0003] The purpose of this application is to provide a coal seam mining roadway support device that can solve the above-mentioned technical problems.

[0004] This application provides a coal seam mining roadway support device, including a first fixed base plate, a second fixed base plate, a first protective side rod, a second protective side rod, and an arched roof. A first driving cylinder is provided between the first fixed base plate and the first protective side rod, and a second driving cylinder is provided between the second fixed base plate and the second protective side rod. Multiple support columns are provided at the upper ends of the first and second protective side rods. The lower end of the arched roof is connected to the multiple support columns. A third driving cylinder is provided between the first protective side rod and the arched roof, and between the second protective side rod and the arched roof.

[0005] Preferably, a support assembly is provided between the first fixed base plate and the first protective side rod, and between the second fixed base plate and the second protective side rod. The support assembly includes a fixed seat, a first support rod, a second support rod, and a third support rod. The fixed seat is fixedly installed on the first fixed base plate or the second fixed base plate. The lower ends of the first support rod and the second support rod are respectively hinged to the fixed seat. The upper ends of the first support rod and the second support rod are respectively hinged to the third support rod. The upper end of the third support rod is hinged to the first protective side rod or the second protective side rod.

[0006] Preferably, the lower ends of the first fixed base plate and the second fixed base plate are each provided with a plurality of pulleys with brakes.

[0007] Preferably, at least two of the first driving cylinder and the second driving cylinder are provided.

[0008] Preferably, each side has multiple third drive cylinders.

[0009] Preferably, the arched ceiling includes multiple arched supports and multiple horizontal supports, with the multiple arched supports spaced apart and the horizontal supports installed on the arched supports at intervals.

[0010] Preferably, the first fixed base plate, the second fixed base plate, the first protective side bar, the second protective side bar, and the arched roof are all made of hard metal.

[0011] The beneficial effects of this utility model are:

[0012] This utility model provides a coal seam mining roadway support device, comprising a first fixed base plate, a second fixed base plate, a first protective side rod, a second protective side rod, and an arched roof. A first driving cylinder is disposed between the first fixed base plate and the first protective side rod, and a second driving cylinder is disposed between the second fixed base plate and the second protective side rod. Multiple support columns are disposed at the upper ends of the first and second protective side rods, and the lower end of the arched roof is connected to the multiple support columns. A third driving cylinder is disposed between the first protective side rod and the arched roof, and between the second protective side rod and the arched roof. This utility model allows for height adjustment via the first and second driving cylinders, applies pre-tightening force to the coal seam via the arched roof, and provides side support to the mining roadway via the first and second protective side rods. This utility model provides multi-point support with strong support strength, ensuring the safety of mining. Attached Figure Description

[0013] 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.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a front view of the present invention;

[0016] Figure 3 This is a side view of the present invention.

[0017] The reference numerals in the attached figures are as follows:

[0018] 1. First fixed base plate; 2. Second fixed base plate; 3. First protective side bar; 4. Second protective side bar; 5. Arched roof; 6. First drive cylinder; 7. Second drive cylinder; 8. Support column; 9. Third drive cylinder; 10. Support assembly; 11. Fixed seat; 12. First support rod; 13. Second support rod; 14. Third support rod; 15. Pulley; 16. Arched bracket; 17. Horizontal bracket. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] like Figure 1-3 As shown, a coal seam mining roadway support device includes a first fixed base plate 1, a second fixed base plate 2, a first protective side rod 3, a second protective side rod 4, and an arched roof 5. A first driving cylinder 6 is installed between the first fixed base plate 1 and the first protective side rod 3, and a second driving cylinder 7 is installed between the second fixed base plate 2 and the second protective side rod 4. Multiple support columns 8 are installed at the upper ends of the first protective side rod 3 and the second protective side rod 4. The lower end of the arched roof 5 is connected to the multiple support columns 8. A third driving cylinder 9 is installed between the first protective side rod 3 and the arched roof 5, and between the second protective side rod 4 and the arched roof 5. This invention allows for height adjustment via the first driving cylinder 6 and the second driving cylinder 7, applies pre-tightening force to the coal seam via the arched roof 5, and provides side support to the mining roadway via the first protective side rod 3 and the second protective side rod 4. This invention provides multi-point support with strong support strength, ensuring the safety of mining.

[0026] In this embodiment, a support assembly 10 is provided between the first fixed base plate 1 and the first protective side rod 3, and between the second fixed base plate 2 and the second protective side rod 4. The support assembly 10 includes a fixed seat 11, a first support rod 12, a second support rod 13, and a third support rod 14. The fixed seat 11 is fixedly installed on the first fixed base plate 1 or the second fixed base plate 2. The lower ends of the first support rod 12 and the second support rod 13 are respectively hinged to the fixed seat 11. The upper ends of the first support rod 12 and the second support rod 13 are respectively hinged to the third support rod 14. The upper end of the third support rod 14 is hinged to the first protective side rod 3 or the second protective side rod 4. The support assembly 10 of this utility model is used to limit the movement of the first protective side rod 3 and the second protective side rod 4 to prevent displacement during the movement.

[0027] In this embodiment, to facilitate the movement of this utility model, the lower ends of the first fixed base plate 1 and the second fixed base plate 2 are each provided with a plurality of pulleys 15 with brake components.

[0028] In this embodiment, to ensure the smoothness and speed of the drive, at least two of the first drive cylinder 6 and the second drive cylinder 7 are provided, and multiple third drive cylinders 9 are provided on each side.

[0029] In this embodiment, in order to reduce the weight of the present invention and reduce production costs, the arched canopy 5 includes a plurality of arched supports 16 and a plurality of horizontal supports 17. The plurality of arched supports 16 are spaced apart, and the horizontal supports 17 are spaced apart and installed on the arched supports 16.

[0030] In this embodiment, in order to extend the service life of the present invention, the first fixed base plate 1, the second fixed base plate 2, the first protective side rod 3, the second protective side rod 4, and the arched roof 5 are all made of hard metal material.

[0031] 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 coal seam mining roadway support device, characterized in that: The device includes a first fixed base plate, a second fixed base plate, a first protective side rod, a second protective side rod, and an arched roof. A first driving cylinder is disposed between the first fixed base plate and the first protective side rod, and a second driving cylinder is disposed between the second fixed base plate and the second protective side rod. Multiple support columns are disposed at the upper ends of the first and second protective side rods. The lower end of the arched roof is connected to the multiple support columns. A third driving cylinder is disposed between the first protective side rod and the arched roof, and between the second protective side rod and the arched roof.

2. The coal seam mining roadway support device according to claim 1, characterized in that: Support assemblies are provided between the first fixed base plate and the first protective side rod, and between the second fixed base plate and the second protective side rod. Each support assembly includes a fixed seat, a first support rod, a second support rod, and a third support rod. The fixed seat is fixedly installed on the first fixed base plate or the second fixed base plate. The lower ends of the first support rod and the second support rod are respectively hinged to the fixed seat. The upper ends of the first support rod and the second support rod are respectively hinged to the third support rod. The upper end of the third support rod is hinged to the first protective side rod or the second protective side rod.

3. The coal seam mining roadway support device according to claim 1, characterized in that: The lower ends of the first fixed base plate and the second fixed base plate are each provided with multiple pulleys equipped with brakes.

4. The coal seam mining roadway support device according to claim 1, characterized in that: Both the first driving cylinder and the second driving cylinder are provided in at least two forms.

5. A coal seam mining roadway support device according to claim 1, characterized in that: Each side has multiple third drive cylinders.

6. The coal seam mining roadway support device according to claim 1, characterized in that: The arched ceiling includes multiple arched supports and multiple horizontal supports, with the multiple arched supports spaced apart and the horizontal supports installed on the arched supports at intervals.

7. A coal seam mining roadway support device according to claim 1, characterized in that: The first fixed base plate, the second fixed base plate, the first protective side bar, the second protective side bar, and the arched roof are all made of hard metal.

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