Automatic net laying device of digging and anchoring all-in-one machine

Abstract

The utility model belongs to the technical field of coal mine tunnel rapid tunneling auxiliary support, and particularly relates to an automatic net laying device of a tunneling and anchoring all-in-one machine, which comprises a net laying frame, a cavity used for placing an anchor net roll is arranged in the net laying frame, and the top end of the cavity is open. Limiting pipes used for preventing the anchor net roll from being separated from the opening in the top of the cavity are arranged at the two ends of the cavity, the limiting pipes are located above the release end of the anchor net roll, and the limiting pipes are located in the opening in the top end of the cavity and located above the same side edge of the release direction of the anchor net roll. The anchor net laying device has the advantages that the anchor net is laid without manually lifting the anchor net roll, and the anchor net laying efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary support technology for rapid tunneling in coal mines; specifically, this utility model relates to an automatic mesh laying device for an integrated tunneling and anchoring machine. Background Technology

[0002] The roadheader-anchor integrated machine is a new type of coal mining machinery product developed to adapt to rapid tunnel excavation. It integrates multiple functions such as cutting, loading, transportation, and support. The support function mainly involves drilling holes around the tunnel perimeter, laying anchor mesh, and installing anchor bolts and cables. Currently, anchor mesh laying is done by miners standing on the operating platform at the front of the machine, manually lifting the welded metal mesh onto temporary supports, and then the roof components of the temporary supports push the mesh to the top of the tunnel. This method of laying anchor mesh not only greatly increases the labor intensity of workers but also severely reduces the production efficiency of the roadheader-anchor integrated machine. Utility Model Content

[0003] In view of this, the present invention provides an automatic net laying device for an integrated excavation and anchoring machine, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.

[0004] To achieve the aforementioned objective, this utility model provides an automatic net laying device for an integrated excavation and anchoring machine, including a net laying frame. The net laying frame has a cavity for placing the anchor net roll. The cavity is open at the top. Both ends of the cavity are provided with limiting tubes for allowing the anchor net roll to detach from the top opening of the cavity. The limiting tubes are located above the release end of the anchor net roll and are located above the side of the top opening of the cavity that is in the same direction as the release of the anchor net roll.

[0005] In the aforementioned automatic mesh laying device for an integrated tunneling and anchoring machine, optionally, a support shaft is rotatably installed inside the limiting tube, and the outer end of the support shaft is installed on the mesh laying frame.

[0006] In the aforementioned automatic mesh laying device for an integrated tunneling and anchoring machine, optionally, mounting sleeves are provided on both sides of the cavity of the mesh laying frame, a limiting ball is provided on the inner side of the mounting sleeve, a limiting spring is connected to the outer side of the limiting ball, the limiting ball is slidably mounted on the mounting sleeve, and the limiting spring is located inside the mounting sleeve, and the rotating shaft is mounted on the mounting sleeve.

[0007] In the aforementioned automatic net-laying device for an integrated tunneling and anchoring machine, optionally, a sliding plate is fixedly connected to the outer side of the limiting ball, the sliding plate is slidably mounted on the mounting sleeve, and the limiting spring is connected between the outer end of the sliding plate and the outer inner wall of the mounting sleeve.

[0008] In the aforementioned automatic net-laying device for an integrated excavation and anchoring machine, optionally, a support plate is rotatably mounted on the top of the mounting sleeve, and the support shaft is mounted on the top of the support plate. When the limiting ball is located at the extreme position of the inner side of the mounting sleeve, the limiting spring is in a free state, the support plate is in a state with its top tip tilted outward, and the limiting tube is in a state away from the cavity. When the sliding plate moves outward, it compresses the limiting spring and drives the top tip of the support plate to rotate inward, so that the limiting tube moves to a state that is close to the top of the release end of the anchor net roll.

[0009] In the aforementioned automatic net-laying device for an integrated excavation and anchoring machine, optionally, the sliding plate includes an inner plate and an outer plate fixedly disposed outside the inner plate. A rotating shaft is provided inside the mounting sleeve, and the support plate is sleeved on the rotating shaft. A groove is provided on the top of the inner plate. When the limiting tube is supported at the top of the release end of the anchor net roll, the bottom end of the support plate is located at the top of the inner plate. The top height of the outer plate is greater than the top height of the inner plate and less than the height of the rotating shaft. When the limiting spring is in a free state, the bottom end of the support plate is located in the groove.

[0010] In the aforementioned automatic net laying device for an integrated excavation and anchoring machine, optionally, when the limiting tube is supported on the top of the release end of the anchor net roll, its axial direction is horizontal, the bottom end of the support plate is inclined outward, and the part of the support plate above the rotating shaft is vertical.

[0011] In the aforementioned automatic net laying device for an integrated excavation and anchoring machine, optionally, a limiting groove is provided at the top of the mounting sleeve, and when the limiting tube is in a state supported on the top of the release end of the anchor net roll and in a state away from the cavity, the portion of the support plate located above the rotating shaft contacts the inner wall surfaces on both sides of the limiting groove.

[0012] This utility model discloses an automatic net laying device for a tunneling and anchoring integrated machine. A net laying frame and its cavity are used to hold the anchor net roll. Coal miners stand on the operating platforms on both sides of the tunneling and anchoring integrated machine and place the pre-rolled anchor net roll into the automatic net laying device installed on temporary supports. The net edge at the release end of the anchor net roll is pulled out and placed on the top plate of the temporary support. Anchor rods are driven using a drilling frame to fix the net edge to the top plate, and a limiting tube supports the top of the release end of the anchor net roll. When the tunneling and anchoring integrated machine moves forward, it automatically unfolds the anchor net roll, achieving automatic net laying across the entire cross-section of the roadway and preventing the anchor net roll from detaching from the cavity. Attached Figure Description

[0013] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:

[0014] Figure 1This is a schematic diagram of the overall structure of the automatic net-laying device of the tunneling and anchoring integrated machine of this utility model.

[0015] Figure 2 This utility model Figure 1 A schematic diagram of the single-sided mounting sleeve after it has been cut open.

[0016] Reference numerals in the attached drawings: 1-Network frame; 2-Cavity; 3-Limiting tube; 4-Support shaft; 5-Mounting sleeve; 6-Limiting ball; 7-Limiting spring; 8-Slide plate; 8.1-Inner plate; 8.2-Outer plate; 9-Support plate; 10-Rotating shaft; 11-Groove; 12-Limiting groove. Detailed Implementation

[0017] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] like Figure 1 and Figure 2 As shown, a typical embodiment of this utility model provides an automatic net laying device for an integrated excavation and anchoring machine, including a net laying frame 1. The net laying frame 1 is provided with a cavity 2 for placing the anchor net roll. The cavity 2 is open at the top. The two ends of the cavity 2 are provided with limiting tubes 3 for preventing the anchor net roll from detaching from the top opening of the cavity 2. The limiting tubes 3 are located above the release end of the anchor net roll, and the limiting tubes 3 are located above the side of the top opening of the cavity 2 that is in the same direction as the release of the anchor net roll.

[0019] By setting the limiting tube 3, during the process of laying the anchor net and rotating the anchor net roll in the cavity 2, the limiting tube 3 presses down on the release end of the anchor net roll to limit the anchor net roll, which can effectively prevent the anchor net roll from detaching from the cavity 2, improve the stability of the anchor net roll, and improve the laying effect.

[0020] Specifically, a support shaft 4 is rotatably mounted inside the limiting tube 3, and the outer end of the support is mounted on the mesh laying frame 1. The limiting tube 3 can rotate on the support shaft 4, reducing the friction between it and the release end of the anchor mesh roll, making it easier to lay the anchor mesh roll. In this embodiment, when the limiting tube 3 is supported on top of the release end of the anchor mesh roll, it is parallel to the axial direction of the anchor mesh roll.

[0021] The cavity 2 of the mesh frame 1 is provided with mounting sleeves 5 on both sides. The inner side of the mounting sleeve 5 is provided with a limiting ball 6, and the outer side of the limiting ball 6 is connected to a limiting spring 7. The limiting ball 6 is slidably mounted on the mounting sleeve 5, and the limiting spring 7 is located inside the mounting sleeve 5. The rotating shaft 10 is mounted on the mounting sleeve 5.

[0022] When the anchor mesh roll is placed into cavity 2, its two ends are supported by limiting balls 6, and the limiting spring 7 is compressed. During the release of the anchor mesh roll, after the anchor mesh roll loosens, the limiting balls 6 will be pressed tightly against the center position of the end of the anchor mesh roll under the action of the limiting spring 7, while the loose anchor mesh roll will contact the spherical surface of the limiting balls 6. This arrangement allows the limiting balls 6 to not only prevent axial displacement of the anchor mesh roll, but also to provide a small offset space for the loose part of the anchor mesh roll using its spherical surface, making the movement of the anchor mesh roll more flexible.

[0023] When placing the anchor net roll into the cavity 2, first contact one end of the anchor net roll with one of the limiting balls 6, then squeeze it to one side of the limiting ball 6, and then place the anchor net roll into the cavity 2 so that the other limiting ball 6 is aligned with the center of the other end of the anchor net roll.

[0024] A sliding plate 8 is fixedly connected to the outer side of the limiting ball 6. The sliding plate 8 is slidably mounted on the mounting sleeve 5. A limiting spring 7 is connected between the outer end of the sliding plate 8 and the outer inner wall of the mounting sleeve 5. The sliding plate 8 serves as the mounting structure for the limiting ball 6, stably mounting the limiting ball 6 onto the mounting sleeve 5.

[0025] The top of the mounting sleeve 5 is rotatably mounted with a support plate 9, and the support shaft 4 is mounted on the top of the support plate 9. When the limiting ball 6 is in the extreme position of the inner side of the mounting sleeve 5, the limiting spring 7 is in a free state, the support plate 9 is in a state with the top tip tilted outward, and the limiting tube 3 is in a state away from the cavity 2. When the sliding plate 8 moves outward, it compresses the limiting spring 7 and drives the top tip of the support plate 9 to rotate inward, so that the limiting tube 3 moves to a state that is close to the top of the release end of the anchor mesh roll.

[0026] In the initial state, the support plate 9 is tilted outward at the top, and the limiting tube 3 is away from the cavity 2, which makes it easier to place the anchor net roll into the cavity 2.

[0027] During the process of the anchor mesh roll being placed into the cavity 2, when the limiting ball 6 is squeezed by the anchor mesh roll, the support plate 9 is rotated through the slide plate 8. The support plate 9 then drives the limiting tube 3 to one side of the cavity 2 and finally supports it on the top of the release end of the anchor mesh roll.

[0028] The slide plate 8 includes an inner plate 8.1 and an outer plate 8.2 fixedly disposed outside the inner plate 8.1. A rotating shaft 10 is provided inside the mounting sleeve 5. The support plate 9 is sleeved on the rotating shaft 10. The top of the inner plate 8.1 is provided with a groove 11. When the limiting tube 3 is supported at the top of the release end of the anchor wire mesh roll, the bottom end of the support plate 9 is located at the top of the inner plate 8.1. The top height of the outer plate 8.2 is greater than the top height of the inner plate 8.1 and less than the height of the rotating shaft 10. When the limiting spring 7 is in a free state, the bottom end of the support plate 9 is located in the groove 11.

[0029] During the insertion of the anchor mesh roll, the end of the anchor mesh roll is compressed by the limiting ball 6, causing the sliding plate 8 to move outward on the mounting sleeve 5. At this time, the inner plate 8.1 pushes the bottom end of the support plate 9 outward, causing the support plate 9 to rotate and switching the limiting rod to the position supported at the release end of the anchor mesh roll. After the anchor mesh roll is removed or laid, the sliding plate 8 moves inward under the action of the limiting spring 7. At this time, the outer plate 8.2 pushes the bottom end of the support plate 9 inward, causing the support plate 9 to drive the limiting tube 3 to rotate, so that the limiting tube 3 moves to a position away from the cavity 2.

[0030] Specifically, during the release of the anchor mesh roll, the bottom end of the support plate 9 is located at the top of the inner plate 8.1. At this time, the inner plate 8.1 is supported by the support plate 9 to keep the limiting tube 3 stably in a state of limiting the release end of the anchor mesh roll.

[0031] When the limiting tube 3 is supported at the top of the release end of the anchor mesh roll, its axis is horizontal, the bottom end of the support plate 9 is inclined outward, and the part of the support plate 9 above the rotating shaft 10 is vertical. This arrangement makes the inner plate 8.1 have a stronger limiting effect on the bottom end of the support plate 9, and the support plate 9 will not shake when the limiting ball 6 reciprocates slightly, thus improving the limiting effect of the limiting tube 3 on the release end of the anchor mesh roll.

[0032] The top of the mounting sleeve 5 has a limiting groove 12, and when the limiting tube 3 is supported on the top of the release end of the anchor net roll and is away from the cavity 2, the part of the support plate 9 above the rotating shaft 10 contacts the inner wall surfaces on both sides of the limiting groove 12.

[0033] In the initial state, the outer side of the support plate 9 located above the rotating shaft 10 is supported on the outward inner wall of the limiting groove 12. At this time, the bottom end of the support plate 9 is located within the groove 11, thereby ensuring that the support plate 9 can be pushed to rotate when the slide plate 8 moves outward.

[0034] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. An automatic net-laying device for an integrated tunneling and anchoring machine, characterized in that, The system includes a net laying frame (1), which has a cavity (2) for placing the anchor net roll. The cavity (2) is open at the top. Both ends of the cavity (2) are provided with limiting tubes (3) for placing the anchor net roll to detach from the top opening of the cavity (2). The limiting tubes (3) are located above the release end of the anchor net roll, and the limiting tubes (3) are located above the side of the top opening of the cavity (2) that is in the same direction as the release of the anchor net roll.

2. The automatic mesh laying device for an integrated tunneling and anchoring machine as described in claim 1, characterized in that, The limiting tube (3) is rotatably mounted with a support shaft (4), and the outer end of the support shaft (4) is mounted on the mesh laying frame (1).

3. The automatic mesh laying device for an integrated tunneling and anchoring machine as described in claim 2, characterized in that, The cavity (2) of the mesh laying frame (1) is provided with mounting sleeves (5) on both sides. The inner side of the mounting sleeve (5) is provided with a limiting ball (6). The outer side of the limiting ball (6) is connected to a limiting spring (7). The limiting ball (6) is slidably mounted on the mounting sleeve (5), and the limiting spring (7) is located inside the mounting sleeve (5). The rotating shaft (10) is mounted on the mounting sleeve (5).

4. The automatic mesh laying device for an integrated tunneling and anchoring machine as described in claim 3, characterized in that, The outer side of the limiting ball (6) is fixedly connected to a sliding plate (8), which is slidably mounted on the mounting sleeve (5). The limiting spring (7) is connected between the outer end of the sliding plate (8) and the outer inner wall of the mounting sleeve (5).

5. The automatic mesh laying device for an integrated tunneling and anchoring machine as described in claim 4, characterized in that, The top of the mounting sleeve (5) is rotatably mounted with a support plate (9), and the support shaft (4) is mounted on the top of the support plate (9). When the limiting ball (6) is located at the extreme position of the inner side of the mounting sleeve (5), the limiting spring (7) is in a free state, the support plate (9) is in a state with its top tip tilted outward, and the limiting tube (3) is in a state away from the cavity (2). When the sliding plate (8) moves outward, it compresses the limiting spring (7) and drives the top tip of the support plate (9) to rotate inward, so that the limiting tube (3) moves to a state that is close to the top of the release end of the anchor net roll.

6. The automatic mesh laying device for an integrated tunneling and anchoring machine as described in claim 5, characterized in that, The slide plate (8) includes an inner plate (8.1) and an outer plate (8.2) fixedly disposed outside the inner plate (8.1). A rotating shaft (10) is provided inside the mounting sleeve (5). The support plate (9) is sleeved on the rotating shaft (10). A groove (11) is provided on the top of the inner plate (8.1). When the limiting tube (3) is supported on the top of the release end of the anchor wire mesh roll, the bottom end of the support plate (9) is located on the top of the inner plate (8.1). The top height of the outer plate (8.2) is greater than the top height of the inner plate (8.1) and less than the height of the rotating shaft (10). When the limiting spring (7) is in a free state, the bottom end of the support plate (9) is located in the groove (11).

7. The automatic mesh laying device for an integrated tunneling and anchoring machine as described in claim 6, characterized in that, When the limiting tube (3) is supported on the top of the release end of the anchor wire mesh roll, its axis is horizontal, and the bottom end of the support plate (9) is inclined outward, and the part of the support plate (9) above the rotating shaft (10) is vertical.

8. The automatic mesh laying device for an integrated tunneling and anchoring machine as described in claim 7, characterized in that, The top of the mounting sleeve (5) has a limiting groove (12), and when the limiting tube (3) is supported on the top of the anchor roll release end and is away from the cavity (2), the part of the support plate (9) above the rotating shaft (10) contacts the inner wall surfaces on both sides of the limiting groove (12).

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