An on-board temporary support device for a roof bolter

Abstract

The utility model relates to the technical field of excavating anchor machine, disclose a kind of excavating anchor machine airborne temporary support device, supporting angle and area can be quickly adjusted, reduce the operation interruption caused by supporting adaptation problem, significantly improve the collaborative efficiency of excavation and support;It includes the chassis set on the excavating anchor machine airborne, hinged with turnover frame on chassis, and turnover frame is connected between chassis by first telescopic cylinder, to make turnover frame can fold or unfold in chassis;Turnover frame is hinged with fender, and fender is connected between turnover frame by second telescopic cylinder, to make fender can fold or unfold in turnover frame, and fender and turnover frame after completely unfolding and chassis form a Z shape structure together;Extension frame is slidably arranged on fender, and extension frame is connected between fender by third telescopic cylinder, to make extension frame can be horizontally stored or unfolded in fender, make extension frame and fender form a support area adjustable support structure together.

Description

Technical Field

[0001] This utility model relates to the field of tunneling and anchoring machine technology, and more specifically, to a temporary support device for tunneling and anchoring machines. Background Technology

[0002] In coal mine tunneling operations, roadheader-anchor (BAR) machines, as highly efficient equipment integrating tunneling and support functions, directly impact mine production progress through their operational safety and efficiency. However, existing temporary support devices for BAR machines generally suffer from fixed structures and insufficient adjustment flexibility. The support range and angle of most devices cannot be quickly adapted to changes in the actual cross-section of the roadway. When facing complex geological conditions or irregular roadways, it is difficult to form comprehensive and stable support protection, easily leading to support blind spots and increasing safety hazards such as roof collapse and spalling.

[0003] Meanwhile, traditional temporary support devices are often bulky, difficult to store when not in use, and occupy too much tunnel space. This not only affects the movement and turning flexibility of the roadheader but may also interfere with other equipment, restricting the continuity of tunneling operations. In addition, the support area of ​​some devices is fixed and cannot be expanded or contracted according to operational needs. When dealing with tunnel cross-sections of different widths and heights, additional auxiliary support equipment is required, increasing equipment investment costs and operational complexity, and reducing tunneling efficiency. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned in the background art above, and then to propose a temporary support device for a tunneling and anchoring machine.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A temporary support device mounted on a roadheader includes a base frame mounted on the roadheader, a hinged frame hinged to the base frame and connected to the base frame via a first telescopic cylinder to allow the hinged frame to be folded or unfolded on the base frame; a stop frame hinged to the hinged frame and connected to the hinged frame via a second telescopic cylinder to allow the stop frame to be folded or unfolded on the hinged frame, and the fully unfolded stop frame and the hinged frame together with the base frame form a Z-shaped structure; an extension frame slidably mounted on the stop frame and connected to the stop frame via a third telescopic cylinder to allow the extension frame to be horizontally stored or unfolded on the stop frame, so that the extension frame and the stop frame together form a support structure with an adjustable support area.

[0007] Furthermore, the above solution includes a U-shaped baffle with slide rails on its two inner walls, and an extension frame with a U-shaped structure matching the inner cavity of the baffle with slide grooves on its two outer walls that cooperate with the slide rails.

[0008] Furthermore, the above solution is further improved by having the upper surfaces of the retaining frame and the extension frame located on the same plane, which can form a continuous and flat support surface and improve the reliability of the support.

[0009] Furthermore, in the above scheme, the third telescopic cylinder is horizontally positioned between the stop and the extension frame.

[0010] Furthermore, the above solution includes an extension component at the bottom of the extension frame for covering the anchor head of the roadheader, thereby improving the safety of the roadheader during use.

[0011] Furthermore, the above solution includes an outer plate, which is located at the bottom of the extension frame and has an inner plate that slides inside it. Three protective plates are flipped and connected to the upper surface of the inner plate. The three protective plates are folded into a stacked structure and stored inside the outer plate. When unfolded, they form a protective cover structure and cover the outside of the anchor head of the tunneling and anchoring machine.

[0012] Furthermore, the outer plate has a movable cavity, a limited seat is formed at the front end of the movable cavity, and a slider connected to the inner plate is slidably fitted inside the movable cavity.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention uses a first telescopic cylinder and a second telescopic cylinder to control the angle between the tilting frame and the base frame, and between the support frame and the tilting frame, respectively. This allows for flexible adjustment of the support angle and rapid adaptation to the actual shape of the roadway cross-section (such as rectangular, trapezoidal, etc.). This effectively eliminates blind spots in the support, ensures full coverage of the roof and sidewalls, and significantly improves operational safety. At the same time, the extension frame can be horizontally extended and retracted under the drive of the third telescopic cylinder, allowing the support area to be flexibly adjusted according to construction needs and meet the support requirements of different roadways.

[0015] In addition, when not in operation, the retraction of the first telescopic cylinder can fold the tilting frame into storage on the base frame surface, the retraction of the second telescopic cylinder can fold the baffle into storage on the tilting frame surface, and the retraction of the third telescopic cylinder can store the extension frame inside the baffle, realizing multi-layer folding storage of the device, significantly reducing the volume when not in operation and avoiding occupying too much roadway space. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram showing the installation location of the extension bracket;

[0018] Figure 3 A diagram showing the installation locations of the expansion components;

[0019] Figure 4 A schematic diagram of the structure of the extended components;

[0020] Figure 5 A schematic diagram of the cross-sectional structure of the extended component;

[0021] Figure 6 for Figure 5 A magnified view of part A in the diagram;

[0022] Reference numerals: 1. Base frame; 2. Flip frame; 3. First telescopic cylinder; 4. Stop frame; 41. Slide rail; 5. Second telescopic cylinder; 6. Extension frame; 61. Slide groove; 7. Third telescopic cylinder; 8. Extension assembly; 81. Outer plate; 811. Movable cavity; 812. Limiting seat; 813. Slider; 82. Inner plate; 83. Protective plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments:

[0024] A temporary support device for a roadheader and anchor machine, as shown in the attached document. Figure 1 and attached Figure 2 As shown, the system includes a base frame 1 mounted on a roadheader, with a tilting frame 2 hinged to the base frame 1. The tilting frame 2 is connected to the base frame 1 via a first telescopic cylinder 3. The tilting frame 2 can be folded and unfolded by the movement of the first telescopic cylinder 3: when the first telescopic cylinder 3 is in the retracted state, the angle between the tilting frame 2 and the base frame 1 gradually decreases, eventually folding and storing itself on the surface of the base frame 1; when the first telescopic cylinder 3 extends, the angle increases, and the tilting frame 2 unfolds outward from the base frame 1. In addition, a stop 4 is hinged to the end of the tilting frame 2, and the stop 4 is connected to the tilting frame 2 via a second telescopic cylinder 5. When the second telescopic cylinder 5 retracts, the tilting frame 2 unfolds. The angle between the baffle 4 and the flip frame 2 decreases, and the baffle 4 folds onto the surface of the flip frame 2. When the second telescopic cylinder 5 extends, the angle increases, and the baffle 4 unfolds from the flip frame 2. At this time, the fully unfolded baffle 4, together with the flip frame 2 and the base frame 1, forms a stable Z-shaped support structure. In addition, an extension frame 6 is slidably provided on the baffle 4, and the extension frame 6 is connected to the baffle 4 through a third telescopic cylinder 7. When the third telescopic cylinder 7 retracts, the extension frame 6 is horizontally stored inside the baffle 4. When the third telescopic cylinder 7 extends, the extension frame 6 unfolds from the baffle 4 in the horizontal direction, together with the baffle 4, forming a frame structure with a flexible adjustable support area.

[0025] In this design, the base frame 1 serves as the basic load-bearing structure. The base frame 1 and the flip frame 2 are connected by a hinge, and the angle between them is controlled by a first telescopic cylinder 3: when the first telescopic cylinder 3 retracts, the flip frame 2 moves closer to the base frame 1 and eventually folds and is stored on the surface of the base frame 1, reducing the space occupied when not in operation; when the first telescopic cylinder 3 extends, the flip frame 2 unfolds outward from the base frame 1, providing a foundation for the subsequent construction of the support structure. The end of the flip frame 2 is hinged to the stop frame 4, and the angle between them is adjusted by a second telescopic cylinder 5: when the second telescopic cylinder 5 retracts, the stop frame 4 folds towards the flip frame 2, further reducing the overall volume; when the second telescopic cylinder 5 extends, the stop frame 4 unfolds from the flip frame 2. At this time, the unfolded stop frame 4, together with the flip frame 2 and the base frame 1, forms a stable Z-shaped support structure, utilizing the principle of triangular stability to enhance the load-bearing capacity of the support. An extension frame 6 is slidably mounted on the retaining frame 4, and its extension and retraction are controlled by a third telescopic cylinder 7: when the third telescopic cylinder 7 retracts, the extension frame 6 is stored inside the retaining frame 4; when the third telescopic cylinder 7 extends, the extension frame 6 unfolds horizontally from the retaining frame 4, and together with the retaining frame 4, expands the support area. The support range can be flexibly adjusted according to actual construction needs.

[0026] For the above scheme, please refer to the appendix for details. Figure 1 and 2 As shown, the baffle 4 has a U-shaped structure and its two inner walls are provided with slide rails 41. The extension frame 6 has a U-shaped structure that matches the inner cavity of the baffle 4 and its two outer walls are provided with slide grooves 61 that cooperate with the slide rails 41. The upper surfaces of the baffle 4 and the extension frame 6 are located on the same plane. The third telescopic cylinder 7 is horizontally arranged between the baffle 4 and the extension frame 6 so that the extension frame 6 can move linearly along the baffle 4 when the third telescopic cylinder 7 extends, thus maintaining the position accuracy.

[0027] In this design, the U-shaped retainer 4 and the matching U-shaped extension frame 6 form a precise sliding guide through the slide rail 41 and the slide groove 61. Combined with the horizontally set third telescopic cylinder 7, it not only ensures the stability and position of the linear movement of the extension frame 6, but also forms a continuous and flat support surface because the upper surfaces of the two are flush, thus improving the reliability of the support. At the same time, the U-shaped structure also enhances the overall rigidity and adapts to the support requirements under different working conditions.

[0028] To further improve the safety of the roadheader during use, the above-mentioned solutions are described in detail below. Figure 3 - Appendix Figure 6 As shown, the bottom of the extension frame 6 is provided with an extension component 8 for covering the anchor head of the roadheader; specifically, the extension component 8 includes an outer plate 81, which is located at the bottom of the extension frame 6 and has a movable cavity 811 inside. The front end of the movable cavity 811 forms a limited seat 812, and a slider 813 is slidably fitted inside the movable cavity 811. An inner plate 82 is slidably connected to the inner plate 82. Three protective plates 83 are flipped and connected to the upper surface of the inner plate 82. The three protective plates 83 are folded into a stacked structure and stored inside the outer plate 81. When unfolded, they form a protective cover structure and cover the outside of the anchor head of the roadheader.

[0029] In this design, the outer plate 81 at the bottom of the extension frame 6 and the inner plate 82 form a sliding fit, which facilitates the flexible adjustment and extension of the inner plate 82 and the guard plate 83 on it according to the machine-mounted anchor head of the tunneling and anchoring machine. The three guard plates 83 connected by flipping on the inner plate 82 can be stacked and stored inside the outer plate 81 when folded, without occupying extra space. When unfolded, they form a protective cover structure that can accurately cover the machine-mounted anchor head of the tunneling and anchoring machine. This not only effectively protects the working area of ​​the machine-mounted anchor head of the tunneling and anchoring machine through physical isolation, but also adapts to different working conditions with the help of the foldable and sliding design, which significantly improves the safety of the tunneling and anchoring machine without affecting the function of the main support structure.

[0030] 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 descriptions of the above embodiments and specifications are merely illustrative of the principles of this 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 protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A temporary support device mounted on a roadheader, comprising a base frame (1) mounted on the roadheader, characterized in that: A hinge (2) is hinged on the base frame (1), and the hinge (2) is connected to the base frame (1) through a first telescopic cylinder (3) so that the hinge (2) can be folded or unfolded on the base frame (1). A stop (4) is hinged on the flip frame (2), and the stop (4) and the flip frame (2) are connected by a second telescopic cylinder (5) so that the stop (4) can be folded or unfolded on the flip frame (2), and the fully unfolded stop (4) and the flip frame (2) together with the base frame (1) form a Z-shaped structure; An extension frame (6) is slidably mounted on the baffle (4), and the extension frame (6) is connected to the baffle (4) by a third telescopic cylinder (7) so that the extension frame (6) can be horizontally stored or extended on the baffle (4), so that the extension frame (6) and the baffle (4) together form a support structure with an adjustable support area.

2. The temporary support device for a roadheader as described in claim 1, characterized in that: The baffle (4) has a U-shaped structure and its two inner walls are provided with slide rails (41). The extension frame (6) has a U-shaped structure that matches the inner cavity of the baffle (4) and its two outer walls are provided with slide grooves (61) that cooperate with the slide rails (41).

3. The temporary support device for a tunneling and anchoring machine according to claim 2, characterized in that: The upper surfaces of the retaining frame (4) and the extension frame (6) are located on the same plane, forming a continuous and flat support surface.

4. The temporary support device for a tunneling and anchoring machine according to claim 3, characterized in that: The third telescopic cylinder (7) is horizontally positioned between the stop (4) and the extension frame (6).

5. A temporary support device for a roadheader as described in claim 4, characterized in that: The bottom of the extension frame (6) is provided with an extension component (8) for covering the anchor head of the tunneling and anchoring machine.

6. A temporary support device for a roadheader as described in claim 5, characterized in that: The expansion component (8) includes an outer panel (81); The outer plate (81) is located at the bottom of the extension frame (6) and the inner plate (82) is slidably fitted inside it. Three guard plates (83) are flipped and connected to the upper surface of the inner plate (82). The three guard plates (83) are stacked after being folded and stored inside the outer plate (81). After being unfolded, they form a protective cover structure and cover the outside of the anchor head of the tunneling and anchoring machine.

7. A temporary support device for a tunneling and anchoring machine according to claim 6, characterized in that: The outer plate (81) has a movable cavity (811) inside, a limited seat (812) is formed at the front end of the movable cavity (811), and a slider (813) connected to the inner plate (82) is slidably fitted inside the movable cavity (811).

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