A walking type forepoling hydraulic support group

Abstract

The application provides a step-type advanced support hydraulic support group, and relates to the technical field of mine machinery, which comprises a track, a head frame, a push-moving frame and a plurality of standard frames. The head frame, the push-moving frame and the standard frames are sequentially connected. The head frame is fixedly connected with the track. The push-moving frame and the standard frames are both slidingly arranged on the track. A first push-moving mechanism is arranged between the head frame and the push-moving frame to drive the head frame and the push-moving frame to move close to or away from each other. The head frame, the push-moving frame and the standard frames all comprise a base and a support mechanism for supporting a roadway. The push-moving frame and the standard frames both further comprise a base-lifting mechanism for lifting the base away from the ground. The hydraulic support group can be moved by controlling the base-lifting mechanism and the first push-moving mechanism, without the need for manual carrying and operation, thereby greatly reducing the labor intensity of workers and reducing the manual operation link.

Description

Technical Field

[0001] This application relates to the field of mining machinery technology, and more specifically, to a stepping-type advanced support hydraulic support assembly. Background Technology

[0002] According to the "Coal Mine Safety Regulations," all safety exits and roadway connections within the area affected by the advanced pressure of the coal mining face must be reinforced with support, and the length of the reinforced roadway must not be less than 20m; for fully mechanized coal mining faces, the roadway height within this area must not be less than 1.8m. Currently, the commonly used support method is a single hydraulic prop combined with a 1.2m articulated beam. However, this support method has many drawbacks: firstly, workers need to frequently operate the props and articulated beams manually, resulting in extremely high labor intensity; secondly, manual installation, dismantling, and transportation are inefficient, making it difficult to meet the needs of rapid tunneling and mining; and thirdly, the numerous manual operation steps make it prone to problems such as improper installation, posing significant safety hazards.

[0003] In existing advanced hydraulic supports, most use fixed bases, and the connection between supports is not stable enough. When it is necessary to move the supports, they often need to be moved one by one, which not only consumes a lot of manpower, but also poses a great safety risk to workers during the handling process. At the same time, the support speed is slow and cannot keep up with the rapid pace of coal mining. Summary of the Invention

[0004] The purpose of this application is to provide a step-by-step advanced support hydraulic support assembly, which can solve the technical problems of existing advanced support hydraulic supports being inconvenient to move, having poor stability, and requiring high labor intensity.

[0005] This application provides a step-by-step advanced support hydraulic support assembly, including a track, a head frame, a pushing frame, and several standard frames. The head frame, the pushing frame, and the standard frames are connected in sequence. The head frame is fixedly connected to the track. The pushing frame and the standard frames are slidably disposed on the track. A first pushing mechanism is provided between the head frame and the pushing frame for moving the head frame and the pushing frame closer to or further away from each other. The head frame, the pushing frame, and the standard frames all include a base and a support mechanism for supporting the roadway. The pushing frame and the standard frames all also include a bottom-lifting mechanism for lifting the base away from the ground.

[0006] The first pushing mechanism includes a first pushing jack, which is connected between the base of the head frame and the base of the pushing frame.

[0007] The support mechanism includes a T-shaped frame, a clamp assembly, a column, and a top beam. The T-shaped frame is fixedly mounted on the base, the column is fixed to the T-shaped frame by the clamp assembly, the top beam is located above the base, and the column connects the base and the top beam.

[0008] The top beam is slidably provided with a telescopic beam that can extend out of the top beam. A telescopic jack is fixedly installed inside the top beam, and the piston rod of the telescopic jack is connected to the telescopic beam.

[0009] A second pushing mechanism is provided between the pushing frame and the standard frame, and between adjacent standard frames. The second pushing mechanism includes a second pushing jack, a pushing connecting rod, and a push rod connector. The second pushing jack and the push rod connector are fixedly mounted on the base. The pushing connecting rod is connected to the piston rod of the second pushing jack, and adjacent pushing connecting rods are connected to the push rod connector.

[0010] The lifting mechanism includes a lifting seat, a lifting jack, and a wheel assembly. The lifting seat is fixedly mounted on the base, the lifting jack is fixedly mounted on the lifting seat, and the wheel assembly is connected to the piston rod of the lifting jack and is slidably mounted on the track.

[0011] The base is provided with four lifting mechanisms, which are evenly distributed around the perimeter of the base.

[0012] The beneficial effects of this utility model are:

[0013] 1. The stepping-type advanced support hydraulic support group provided by this utility model can realize the movement of the hydraulic support group by controlling the bottom lifting mechanism and the first pushing mechanism. It eliminates the need for a large amount of manual handling and operation, greatly reducing the labor intensity of workers. At the same time, it reduces the direct manual operation links, avoids workers performing high-intensity work in dangerous environments, and significantly improves work safety. In addition, the hydraulic drive makes the hydraulic support group move faster and more accurately, effectively improving work efficiency.

[0014] 2. The stepping-type advanced support hydraulic support group provided by this utility model adopts a cross-track movement method, and the single stepping movement distance can reach 6m. During the movement, the head frame and the standard frame alternately support and move. That is, when the head frame supports, the standard frame slides on the track, and when the standard frame supports, the head frame moves along the track. This alternating stepping action greatly improves the movement efficiency of the hydraulic support group, thereby improving the production efficiency of the entire working face and meeting the needs of rapid advancement in coal mining. 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 structure in some embodiments of this application;

[0017] Figure 2 This is a schematic diagram of the overall structure from another perspective in some embodiments of this application;

[0018] Figure 3 This is a schematic diagram of the overall structure from another perspective in some embodiments of this application;

[0019] Figure 4 This is a schematic diagram of the standard frame structure in some embodiments of this application.

[0020] The reference numerals in the attached figures are as follows:

[0021] 1. Track;

[0022] 2. Headrest; 21. Base;

[0023] 3. Moving frame;

[0024] 4. Standard rack;

[0025] 5. First pushing mechanism; 51. First pushing jack;

[0026] 6. Support mechanism; 61. T-shaped frame; 62. Clamp assembly; 63. Column; 64. Top beam; 65. Telescopic beam; 66. Telescopic jack;

[0027] 7. Lifting mechanism; 71. Lifting seat; 72. Lifting jack; 73. Wheel assembly;

[0028] 8. Second pushing mechanism; 81. Second pushing jack; 82. Pushing connecting rod; 83. Push rod joint. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] like Figures 1 to 4As shown, this application embodiment provides a step-type advanced support hydraulic support assembly, including a track 1, a head frame 2, a pushing frame 3, and several standard frames 4. The head frame 2, the pushing frame 3, and the standard frames 4 are connected in sequence. The head frame 2 is fixedly connected to the track 1. The pushing frame 3 and the standard frames 4 are slidably arranged on the track 1. A first pushing mechanism 5 is provided between the head frame 2 and the pushing frame 3 to drive the head frame 2 and the pushing frame 3 closer or further apart. The head frame 2, the pushing frame 3, and the standard frames 4 all include a base 21 and a support mechanism 6 for supporting the roadway. The pushing frame 3 and the standard frames 4 also include a bottom lifting mechanism 7 for lifting the base 21 away from the ground.

[0036] In use, the base 21 of the standard frame 4 and the pusher frame 3 is raised away from the ground by the lifting mechanism 7, thereby raising the standard frame 4 and the pusher frame 3 as a whole. Then, the first pusher mechanism 5 drives the head frame 2 and the pusher frame 3 to move closer or further apart. The standard frame 4 slides on the track 1 along with the pusher frame 3. After the standard frame 4 and the pusher frame 3 have moved into place, the base 21 of the standard frame 4 and the pusher frame 3 is lowered by the lifting mechanism 7, so that the standard frame 4 and the pusher frame 3 contact the ground and are relatively fixed. Then, the first pusher mechanism 5 drives the head frame 2 and the pusher frame 3 to move closer or further apart, thereby pulling or pushing the head frame 2 to move along the track 1. By cyclically operating the hydraulic support group, continuous stepping self-movement can be achieved. During the movement, the head frame 2 or the standard frame 4 is always kept on the ground, realizing continuous support of the roadway.

[0037] The hydraulic support assembly can be moved by controlling the lifting mechanism 7 and the first pushing mechanism 5, eliminating the need for extensive manual handling and operation, greatly reducing the labor intensity of workers. At the same time, it reduces direct manual operation, avoids workers performing high-intensity work in dangerous environments, and significantly improves work safety. In addition, the hydraulic drive makes the hydraulic support assembly move faster and more accurately, effectively improving work efficiency.

[0038] The hydraulic support assembly adopts a cross-track 1 movement method, with a single step movement distance of up to 6m. During the movement, the head frame 2 and the standard frame 4 alternate in support and movement. That is, when the head frame 2 is supporting, the standard frame 4 slides on the track 1, and when the standard frame 4 is supporting, the head frame 2 moves along the track 1. This alternating stepping action greatly improves the movement efficiency of the hydraulic support assembly, thereby improving the production efficiency of the entire working face and meeting the needs of rapid advancement in coal mining.

[0039] like Figures 1 to 4 As shown, in this embodiment, the first pushing mechanism 5 includes a first pushing jack 51, which is connected between the base 21 of the head frame 2 and the base 21 of the pushing frame 3.

[0040] When in use, the first push jack 51 is activated to move the head frame 2 and the push frame 3 closer or further apart; the piston rod of the first push jack 51 extends and retracts to drive the relative movement of the two, pushing the push frame 3 away when it extends and pulling the head frame 2 closer when it retracts.

[0041] like Figures 1 to 4 As shown, in this embodiment, the support mechanism 6 includes a T-shaped frame 61, a clamp assembly 62, a column 63, and a top beam 64. The T-shaped frame 61 is fixedly mounted on the base 21, the column 63 is fixed to the T-shaped frame 61 by the clamp assembly 62, and the top beam 64 is located above the base 21. The column 63 is connected between the base 21 and the top beam 64.

[0042] The top beam 64 is connected to the column 63, and transmits the supporting force applied to the column 63 during the support process, thereby achieving effective support for the top of the roadway and ensuring the safe operation of coal mine production; the column 63 is firmly installed on the base 21 by the T-shaped frame 61 and the clamp assembly 62, ensuring that the column 63 remains stable during pressure and movement.

[0043] like Figures 1 to 4 As shown, in this embodiment, a telescopic beam 65 is slidably provided inside the top beam 64, the telescopic beam 65 can extend out of the top beam 64, and a telescopic jack 66 is fixedly provided inside the top beam 64, the piston rod of the telescopic jack 66 is connected to the telescopic beam 65.

[0044] During support operations, the telescopic jack 66 can be opened to extend the telescopic beam 65 according to actual needs, thereby widening the support area and enhancing the support effect. When the support is moved, the telescopic jack 66 can be opened to retract the telescopic beam 65, reducing movement resistance and facilitating operation and movement. Moreover, the design of the telescopic beam 65 allows the support area to be adjusted, adapting to roadways of different widths and improving the flexibility and adaptability of the support.

[0045] like Figures 1 to 4 As shown, in this embodiment, a second pushing mechanism 8 is provided between the pushing frame 3 and the standard frame 4, and between adjacent standard frames 4. The second pushing mechanism 8 includes a second pushing jack 81, a pushing connecting rod 82, and a push rod connector 83. The second pushing jack 81 and the push rod connector 83 are both fixedly mounted on the base 21. The pushing connecting rod 82 is connected to the piston rod of the second pushing jack 81, and adjacent pushing connecting rods 82 are connected to the push rod connector 83.

[0046] By setting up a second pushing mechanism 8, the pushing connecting rod 82, the push rod joint 83, and the second pushing jack 81 cooperate with each other to connect the pushing frame 3 and each standard frame 4 into a whole, forming a stable structural system. This effectively enhances the overall support reliability of the hydraulic support group and ensures synchronous movement between the pushing frame 3 and the standard frame 4, as well as between adjacent standard frames 4, thereby improving the stability of the support group's movement.

[0047] like Figures 1 to 4 As shown, in this embodiment, the lifting mechanism 7 includes a lifting seat 71, a lifting jack 72, and a wheel assembly 73. The lifting seat 71 is fixedly mounted on the base 21, the lifting jack 72 is fixedly mounted on the lifting seat 71, the wheel assembly 73 is connected to the piston rod of the lifting jack 72, and the wheel assembly 73 is slidably mounted on the track 1.

[0048] In use, the lifting jack 72 is activated to lift the base 21 of the standard frame 4 and the moving frame 3 away from the ground, thereby lifting the standard frame 4 and the moving frame 3 as a whole. The wheel assembly 73 remains connected to the track 1, allowing the standard frame 4 and the moving frame 3 to slide on the track 1. After the standard frame 4 and the moving frame 3 have moved into place, the lifting jack 72 is activated to lower the base 21 of the standard frame 4 and the moving frame 3, thereby bringing the standard frame 4 and the moving frame 3 into contact with the ground and fixing them relatively. The lifting mechanism 7 is used to lift the base 21 of the standard frame 4 and the moving frame 3, so that the base 21 of the standard frame 4 and the moving frame 3 is off the ground, reducing movement resistance. Moreover, the lifting mechanism 7 reduces the direct friction between the base 21 and the ground, extending the service life of the equipment.

[0049] like Figures 1 to 4 As shown, in this embodiment, four lifting mechanisms 7 are provided, and the four lifting mechanisms 7 are evenly distributed around the periphery of the base 21. The even distribution of the four lifting mechanisms 7 can achieve uniform lifting of the base 21, improve the stability and balance of the lifting, and prevent the base 21 from tilting or shifting during the lifting process. The four lifting mechanisms 7 work together to enhance the stability of the support group during the movement process and improve the support capacity and safety of the support group.

[0050] Working principle: When using the stepping-type advanced support hydraulic support assembly provided in this application, the bottom lifting jack 72 is opened to lift the base 21 of the standard frame 4 and the pushing frame 3 away from the ground, thereby lifting the standard frame 4 and the pushing frame 3 as a whole, while the wheel assembly 73 remains connected to the track 1. Then, the first pushing jack 51 is opened to drive the head frame 2 and the pushing frame 3 to move closer or further apart. The standard frame 4 slides on the track 1 along with the pushing frame 3. After the standard frame 4 and the pushing frame 3 have moved into place, the bottom lifting jack 72 is opened to lower the base 21 of the standard frame 4 and the pushing frame 3, thereby making the standard frame 4 and the pushing frame 3 contact the ground and fix them relatively. Then, the first pushing mechanism 5 is used again to drive the head frame 2 and the pushing frame 3 to move closer or further apart, thereby pulling or pushing the head frame 2 to move along the track 1. By cyclically operating the hydraulic support assembly, continuous stepping self-movement can be achieved, and during the movement, the head frame 2 or the standard frame 4 is always kept on the ground, realizing continuous support of the roadway.

[0051] 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 step-by-step advanced support hydraulic support assembly, characterized in that: The system includes a track (1), a head frame (2), a moving frame (3), and several standard frames (4). The head frame (2), the moving frame (3), and the standard frames (4) are connected in sequence. The head frame (2) is fixedly connected to the track (1). The moving frame (3) and the standard frames (4) are slidably mounted on the track (1). A first moving mechanism (5) is provided between the head frame (2) and the moving frame (3) to move the head frame (2) and the moving frame (3) closer or further apart. The head frame (2), the moving frame (3), and the standard frames (4) all include a base (21) and a support mechanism (6) for supporting the roadway. The moving frame (3) and the standard frames (4) also include a bottom lifting mechanism (7) for lifting the base (21) away from the ground.

2. The step-by-step advanced support hydraulic support assembly according to claim 1, characterized in that: The first pushing mechanism (5) includes a first pushing jack (51), which is connected between the base (21) of the head frame (2) and the base (21) of the pushing frame (3).

3. The step-by-step advanced support hydraulic support assembly according to claim 1, characterized in that: The support mechanism (6) includes a T-shaped frame (61), a clamp assembly (62), a column (63), and a top beam (64). The T-shaped frame (61) is fixedly mounted on the base (21). The column (63) is fixed to the T-shaped frame (61) by the clamp assembly (62). The top beam (64) is located above the base (21). The column (63) is connected between the base (21) and the top beam (64).

4. The step-by-step advanced support hydraulic support assembly according to claim 3, characterized in that: A telescopic beam (65) is slidably provided inside the top beam (64). The telescopic beam (65) can extend out of the top beam (64). A telescopic jack (66) is fixedly provided inside the top beam (64). The piston rod of the telescopic jack (66) is connected to the telescopic beam (65).

5. The step-by-step advanced support hydraulic support assembly according to claim 1, characterized in that: A second pushing mechanism (8) is provided between the pushing frame (3) and the standard frame (4), and between adjacent standard frames (4). The second pushing mechanism (8) includes a second pushing jack (81), a pushing connecting rod (82), and a push rod connector (83). The second pushing jack (81) and the push rod connector (83) are fixedly mounted on the base (21). The pushing connecting rod (82) is connected to the piston rod of the second pushing jack (81), and adjacent pushing connecting rods (82) are connected to the push rod connector (83).

6. The step-by-step advanced support hydraulic support assembly according to claim 1, characterized in that: The lifting mechanism (7) includes a lifting seat (71), a lifting jack (72), and a wheel assembly (73). The lifting seat (71) is fixedly mounted on the base (21), the lifting jack (72) is fixedly mounted on the lifting seat (71), the wheel assembly (73) is connected to the piston rod of the lifting jack (72), and the wheel assembly (73) is slidably mounted on the track (1).

7. The step-type advanced support hydraulic support assembly according to claim 6, characterized in that: Four lifting mechanisms (7) are provided, and the four lifting mechanisms (7) are evenly distributed around the base (21).

Images