A towline device for a coal mine roadway fully-mechanized excavation machine

Abstract

The utility model discloses a kind of towed cable devices for coal mine roadway comprehensive excavator, including upper crossbeam and lower crossbeam, multiple connecting rods are evenly and vertically arranged between two;Bottom longitudinal beam is vertically arranged in the inner side of two ends of lower crossbeam respectively, a bottom crossbeam is connected between the free end of two bottom longitudinal beams, metal net rack is arranged in the rectangular frame surrounded by two bottom longitudinal beams, lower crossbeam and bottom crossbeam;It also includes two z-shaped hangers arranged at intervals, each hanger: it includes upper steel plate and lower steel plate, connecting steel plate is vertically arranged between two, lower steel plate is fixedly arranged at the bottom of metal net rack, connecting steel plate extends upwards, upper steel plate extends in the direction of away from upper crossbeam;Wherein, metal net rack is used to place cable clamp on it;Each hanger is used to be detachably connected between the crossbeam of comprehensive excavator buffer section and track through its upper steel plate.The problem that immersion wear, safety hazard of big problem caused by floor dragging when comprehensive excavator cable, water pipe moves with equipment is solved.

Description

Technical Field

[0001] This utility model belongs to the field of mining machinery technology, and in particular relates to a cable-dragging device for a coal mine roadway tunneling machine. Background Technology

[0002] During coal mine tunnel excavation, the roadheader needs to move back and forth continuously with the excavation progress, and its associated cables and water pipes also need to be adjusted synchronously. Due to the lack of effective suspension or support devices, these cables and pipes are often dragged directly on the tunnel floor. The tunnel floor often becomes muddy due to water seepage and operations, and the dragged cables and pipes are constantly immersed in it, which not only accelerates the aging of the insulation layer and the corrosion of the pipe walls, but also easily leads to problems such as leakage of electricity and water due to wear, posing serious safety hazards to underground operations. To avoid accidents, it is necessary to assign personnel to constantly monitor and manage these cables and pipes. This not only occupies valuable manpower, wastes working hours, and increases production costs, but also causes long-term wear due to the friction between the cable sheath and the floor during continuous dragging, further shortening the service life of the equipment and creating a vicious cycle. Utility Model Content

[0003] The purpose of this utility model is to provide a cable dragging device for a coal mine roadway tunneling machine, so as to solve the problem of waterlogging and wear caused by the dragging of the tunneling machine's cables and water pipes on the floor plate when the equipment moves, resulting in significant safety hazards.

[0004] The present invention adopts the following technical solution: a cable-dragging device for a coal mine roadway tunneling machine, comprising a horizontally arranged upper crossbeam, a lower crossbeam arranged in parallel below the upper crossbeam, and multiple connecting rods evenly and vertically arranged between the upper and lower crossbeams. A bottom longitudinal beam is vertically installed at both ends of the lower crossbeam, and a bottom crossbeam is connected between the free ends of the two bottom longitudinal beams. A metal mesh frame is installed within the rectangular frame enclosed by the two bottom longitudinal beams, the lower crossbeam, and the bottom crossbeam. It also includes two Z-shaped brackets spaced apart. Each bracket includes a horizontally arranged upper steel plate and a lower steel plate, with a vertically arranged connecting steel plate between the upper and lower steel plates. The lower steel plate is fixed to the bottom of the metal mesh frame, the connecting steel plate extends upward, and the upper steel plate extends away from the upper crossbeam. The metal mesh frame is used to place cable clamps on it; each bracket is detachably connected to the crossbeam and track of the roadheader's buffer section via a steel plate on it.

[0005] Furthermore, the height of the connecting rod is 250~300mm, and the distance between the bottom crossbeam and the lower crossbeam is 300mm~500mm.

[0006] Furthermore, the width of the upper steel plate is 100mm~150mm.

[0007] Furthermore, it includes multiple cable trays arranged side by side in the horizontal direction, the total length of which is the length of the buffer section.

[0008] The beneficial effects of this utility model are as follows: First, it completely solves the problem of cables and water pipes being dragged along the ground. The metal mesh frame supporting the cable clamps allows the cables and water pipes to be completely detached from the tunnel floor, avoiding soaking in silt and friction with the floor, significantly reducing wear and tear, and lowering safety hazards such as electrical and water leakage. Second, it eliminates the cost of dedicated personnel for supervision. Cables and water pipes are arranged in an orderly manner and move synchronously with the roadheader, eliminating the need for constant manual maintenance, saving time and improving operational efficiency. Third, it enhances the standardization level of the tunnel. The neat and orderly arrangement of cables and water pipes reduces the chaos in the tunnel environment caused by disorder and reduces repeated investment in tunnel standardization construction. Finally, it enhances structural adaptability and durability. The stable design of the three-dimensional frame and Z-shaped bracket can withstand the vibration and impact during the movement of the roadheader, while the modular design extends the overall service life of the device and reduces equipment replacement costs. Attached Figure Description

[0009] Figure 1 This is a front view of a cable-dragging device for a coal mine roadway tunneling machine according to the present invention; Figure 2 This is a top view of a cable-dragging device for a coal mine roadway tunneling machine according to the present invention; Figure 3 This is a side view of a cable-dragging device for a coal mine roadway tunneling machine according to the present invention; Figure 4 This is a schematic diagram showing the usage status of a cable-dragging device for a coal mine roadway tunneling machine according to this utility model.

[0010] Among them: 1. Upper crossbeam, 2. Lower crossbeam, 3. Connecting rod, 4. Bottom longitudinal beam, 5. Bottom crossbeam, 6. Metal mesh frame, 7. Hanger, 71. Upper steel plate, 72. Connecting steel plate, 73. Lower steel plate, 8. Track, 9. Crossbeam, 10. Cable, 11. Cable clamp. Detailed Implementation

[0011] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0012] This utility model provides a cable-dragging device for a coal mine roadway tunneling machine, such as... Figure 1 and Figure 2 As shown, it includes a horizontally arranged upper crossbeam 1, and a lower crossbeam 2 arranged side by side below the upper crossbeam 1. Multiple connecting rods 3 are evenly and vertically arranged between the upper crossbeam 1 and the lower crossbeam 2. A bottom longitudinal beam 4 is vertically arranged at both ends of the lower crossbeam 2 towards its inner side. A bottom crossbeam 5 is connected between the free ends of the two bottom longitudinal beams 4. A metal mesh frame 6 is arranged within the rectangular frame enclosed by the two bottom longitudinal beams 4, the lower crossbeam 2, and the bottom crossbeam 5. It also includes two spaced-apart Z-shaped brackets 7, such as Figure 3 As shown, each of the hanging brackets 7 includes a horizontally arranged upper steel plate 71 and a lower steel plate 73, a vertically arranged connecting steel plate 72 between the upper steel plate 71 and the lower steel plate 73, the lower steel plate 73 being fixedly arranged at the bottom of the metal mesh frame 6, the connecting steel plate 72 extending upward, and the upper steel plate 71 extending away from the upper crossbeam 1. The metal mesh frame 6 serves as a track for placing cable clamps 11. The cable clamps act as protective sheaths for the cables; as the roadheader moves, the cable clamps 11 encase the cables 10 and move along the track formed by the metal mesh frame 6. Each hanger 7 is suspended between the crossbeam 9 and the track 8 of the roadheader's buffer section via a steel plate. The buffer section includes parallel tracks and steel crossbeams, with tracks bolted to the crossbeams. Z-shaped hangers are installed between the crossbeams and tracks of the buffer section and secured by track bolts.

[0013] This utility model discloses a novel cable-dragging device for a coal mine roadway tunnel excavator, which combines a three-dimensional frame with a metal mesh frame for load bearing. The upper crossbeam 1, the lower crossbeam 2, and the connecting rod 3 form a stable three-dimensional support frame. The metal mesh frame 6 is set inside the rectangular frame enclosed by the bottom longitudinal beam 4 and the bottom crossbeam 5, forming a layered load bearing structure. This ensures overall rigidity and allows for the flexible placement of cable clamps through the metal mesh frame, enabling the orderly classification and storage of cables and water pipes.

[0014] The bracket 7 adopts a Z-shaped bidirectional extension design. The upper steel plate 71 extends away from the upper crossbeam 1, the lower steel plate 73 is fixed to the bottom of the metal mesh frame 6, and the connecting steel plate 72 is vertically connected and extends upward. This structure allows the bracket 7 to be stably attached to the roadheader, while maintaining a reasonable distance between the entire device and the roadheader to avoid mutual interference during operation.

[0015] A cable-dragging device for a coal mine roadway tunneling machine is designed in a modular manner. Each unit can be connected by bolts or other means, which facilitates disassembly, installation and maintenance. It can be flexibly adjusted according to the quantity and specifications of cables and water pipes to adapt to different tunneling operation scenarios. In some embodiments, the height of the connecting rod 3 is 250~300mm, and the distance between the bottom crossbeam 5 and the lower crossbeam 2 is 300mm~500mm.

[0016] In some embodiments, the width of the upper steel plate 71 is 100mm to 150mm. This ensures the stability of the installation while simplifying the structure.

[0017] The dimensions listed above are designed based on the diameter of the cable conduit to be towed, the size of the cable clamps, and the length of the buffer section. Proper matching of all dimensions facilitates convenient on-site use.

[0018] In some embodiments, a cable-drafting device for a coal mine roadway roadway tunneling machine includes multiple cable trays arranged side by side in a horizontal direction, the total length of which is the length of the buffer section. The modular structure allows for easy assembly of cable-drafting devices of various lengths to suit actual usage requirements.

[0019] like Figure 4 As shown, the method of using the towing cable device for a coal mine roadway tunneling machine according to this utility model is as follows: First, remove the rail 8 from the buffer section of the roadheader. Then, place the upper steel plate 71 of the bracket on the upper surface of the crossbeam 9, and press the rail 8 onto the crossbeam 9 to clamp the upper steel plate 71. Next, tighten the rail 8, upper steel plate 71, and crossbeam 9 with bolts to ensure a secure connection. To facilitate bolt installation, holes can be drilled at corresponding positions on the rail 8, upper steel plate 71, and crossbeam 9 before installation.

[0020] Similarly, each upper steel plate 71 can be installed at various positions in the buffer section.

[0021] Next, fix the cable 10 and water pipe with cable clamps 11 respectively, and then place the cable clamps 11 on the metal mesh frame 6 in sequence, arranging them neatly according to their direction to avoid cross-tangle. When the roadheader moves during operation, the cable clamp 11 moves synchronously with it, requiring no additional operation.

[0022] During breaks in operation, check whether the cable clamps 11 on the metal mesh frame 6 are loose; if any have fallen off, reposition them immediately. Check the connection points of the Z-shaped brackets 7 to ensure there is no shaking. The entire tunnel advance process does not require disassembly of cable conduits, adapting to the dynamic operation requirements of the tunnel face.

[0023] This new cable-dragging device for coal mine roadway tunneling machines frees cables and water pipes from being dragged along the roadway floor, avoiding direct contact with silt and gravel, significantly reducing wear and tear and extending service life by over 30%. The cables and pipes no longer run on the ground, eliminating the risk of leakage and corrosion caused by soaking, reducing safety hazards by over 60%. Furthermore, no dedicated personnel are required for maintenance and upkeep, saving 2-3 man-hours per shift. Standardized cable installation within the roadway reduces the need for repeated maintenance and upkeep, resulting in savings of several thousand yuan per month, achieving a dual improvement in safety and efficiency.

Claims

1. A cable-dragging device for a coal mine roadway tunneling machine, characterized in that, It includes a horizontally arranged upper crossbeam (1), and a lower crossbeam (2) arranged in parallel below the upper crossbeam (1). Multiple connecting rods (3) are evenly and vertically arranged between the upper crossbeam (1) and the lower crossbeam (2). A bottom longitudinal beam (4) is vertically arranged at both ends of the lower crossbeam (2) towards its inner side. A bottom crossbeam (5) is connected between the free ends of the two bottom longitudinal beams (4). A metal mesh frame (6) is arranged inside the rectangular frame enclosed by the two bottom longitudinal beams (4), the lower crossbeam (2) and the bottom crossbeam (5). It also includes two Z-shaped brackets (7) spaced apart. Each bracket (7) includes a horizontally arranged upper steel plate (71) and a lower steel plate (73). A connecting steel plate (72) is vertically arranged between the upper steel plate (71) and the lower steel plate (73). The lower steel plate (73) is fixedly arranged at the bottom of the metal mesh frame (6). The connecting steel plate (72) extends upward, and the upper steel plate (71) extends away from the upper crossbeam (1). The metal mesh frame (6) is used to place cable clamps thereon; each of the brackets (7) is used to be detachably connected between the crossbeam (9) and the track (8) of the buffer section of the roadheader via a steel plate (71) thereon.

2. The cable-dragging device for a coal mine roadway tunneling machine as described in claim 1, characterized in that, The height of the connecting rod (3) is 250~300mm, and the distance between the bottom crossbeam (5) and the lower crossbeam (2) is 300mm~500mm.

3. A cable-dragging device for a coal mine roadway tunneling machine as described in claim 1 or 2, characterized in that, The width of the upper steel plate (71) is 100mm~150mm.

4. A cable-dragging device for a coal mine roadway tunneling machine as described in claim 1 or 2, characterized in that, It includes multiple cable trays arranged side by side in the horizontal direction, the total length of which is the length of the buffer section.

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