Rear cable moving take-up and pay-off device of fully-mechanized coal winning machine

Abstract

The utility model discloses a rear cable moving take-up and pay-off device of a roadheader, which comprises the roadheader, the rear end of the roadheader is sequentially connected with a first belt conveyor and a second belt conveyor, the bottom of the second belt conveyor is slidably connected with a tail dense frame, and the rear end of the tail dense frame is connected with a cable frame. A first supporting rod, a second supporting rod and rope guiding wheels are connected to the side portion of the second belt conveyor and the side portion of the tail dense frame respectively, the front end of the tail dense frame is connected with one end of a steel wire rope, and the other end of the steel wire rope sequentially bypasses all the rope guiding wheels and then is connected with the tail dense frame below the second supporting rod. A hanging pulley penetrates through the steel wire rope between the first supporting rod and the second supporting rod, hanging rings are arranged on the side portion of the two-belt conveyor, one end of a cable is connected with the distribution box, and the other end of the cable sequentially penetrates through all the hanging rings and the hanging pulley and then is wound on the cable frame. Sliding self-moving of the rear cable of the roadheader is completed through the device, the problem that the cable is prone to damage due to long-term mopping is solved, and standard hanging of the cable is achieved.

Description

Technical Field

[0001] The utility model relates to the field of cable retracting and releasing equipment, in particular to a rear-mounted cable movable retracting and releasing device for a fully mechanized tunneling machine. Background Art

[0002] A tunnel boring machine (TBM), short for a comprehensive mechanized tunneling machine, is a multi-functional mechanized machine that integrates multiple functions, including tunneling, rock loading, coal transportation, and even support and road nailing. It can complete the formation of a roadway in a single cut. Typically located at the forefront of the working face, TBMs are responsible for excavating and crushing rock to create new roadway space. Using comprehensive mechanized tunneling can increase tunneling progress by more than 30 times compared to drilling and blasting.

[0003] However, during the production process, the tunnel boring machine frequently moves back and forth and swings left and right, and its power cord also moves with the movement of the equipment, making cable management difficult. Furthermore, the cables are constantly dragged on the ground, causing friction and accelerated wear. The cables are often squeezed and dragged on the ground, causing them to be easily damaged, increasing equipment troubleshooting time and reducing tunneling efficiency. Furthermore, to prevent the equipment from crushing the cables, personnel must constantly intervene and adjust the cables' position, posing a significant safety hazard. Utility Model Content

[0004] The utility model provides a mobile retracting and releasing device for cables at the rear of a tunnel boring machine, aiming to solve the problems of low cable retracting and releasing efficiency and inconvenience in use during the production process of the tunnel boring machine, and easy damage caused by long-term friction with the ground.

[0005] To achieve its purpose, the utility model adopts the following technical solutions:

[0006] A rear-mounted cable moving and releasing device for a comprehensive excavator comprises a comprehensive excavator arranged in an excavation tunnel, the rear end of the comprehensive excavator is connected to a transport belt conveyor, the rear end of the first transport belt conveyor is connected to a second transport belt conveyor; the rear end of the comprehensive excavator is also connected to a distribution box, the bottom of the second transport belt conveyor is slidably connected to a tail close frame, and the rear end of the tail close frame is connected to a cable rack; the side of the second transport belt conveyor is connected to a vertical first support rod, and the side of the tail close frame on the same side is connected to a vertical second support rod; both ends of the first support rod and the top of the second support rod are connected to guide pulleys, the front end of the tail close frame is connected to one end of a steel rope, and the other end of the steel rope is connected to the tail close frame below the second support rod after passing through all the guide pulleys on the first support rod and the second support rod in sequence;

[0007] A number of suspension pulleys are provided on the horizontal section of the wire rope between the first support rod and the second support rod, and a number of hanging rings are provided on the side of the second belt conveyor; one end of the cable is connected to the distribution box, and the other end passes through all the hanging rings and suspension pulleys in sequence and is coiled on the cable rack, and the end of the cable is connected to a hook provided in the excavation tunnel.

[0008] Furthermore, the hanging loops are all arranged collinearly.

[0009] Furthermore, the hanging ring is movably arranged on the side of the second belt conveyor and can slide left and right along the side of the second belt conveyor.

[0010] Furthermore, the spacing between adjacent hanging rings is 30 to 40 mm.

[0011] Furthermore, the distance between adjacent suspension pulleys is 30-40 mm.

[0012] Furthermore, the top heights of the first support rod and the second support rod are the same.

[0013] Furthermore, the cable rack is a cylindrical hollow frame.

[0014] Furthermore, the height of the cable rack is less than or equal to half the height of the second support rod.

[0015] Furthermore, the hooks are grouped into at least three, and the end of the cable is connected to one group of hooks.

[0016] Furthermore, the hook is a lockable hook.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] The cable retracting and retracting device provided by this utility model allows the rear cable of the tunnel boring machine to slide and move automatically, solving the problem of the cable dragging on the ground for a long time, causing constant friction with the ground, accelerated wear, and easy damage, thereby achieving standardized cable hanging. Furthermore, the cable can move forward and backward with the tunnel boring machine, providing flexibility and versatility, extending the cable's service life, reducing cable procurement costs, saving production costs, and eliminating the risks of constant human intervention and adjustment of the cable's position, making it safe and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of the cable moving and retracting device of the present utility model;

[0020] In the figure: 1-tunnel boring machine; 2-first belt conveyor; 3-second belt conveyor; 4-hanging ring; 5-guide rope pulley; 6-wire rope; 7-suspension pulley; 8-distribution box; 9-cable rack; 10-hook; 11-tail rack; 12-cable; 13-first support rod; 14-second support rod. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] like Figure 1 As shown, the utility model is a mobile retracting and releasing device for the rear cable of a tunnel boring machine, comprising a tunnel boring machine 1 arranged in an excavation tunnel, a first belt conveyor 2 being connected to the rear end of the tunnel boring machine 1, a second belt conveyor 3 being connected to the rear end of the first belt conveyor 2; a distribution box 8 is also connected to the rear end of the tunnel boring machine 1.

[0023] The bottom of the second belt conveyor 3 is slidably connected to the tail dense frame 11, and the rear end of the tail dense frame 11 is connected to the cable rack 9, which is a cylindrical hollow frame; a vertical first support rod 13 is welded to the side of the second belt conveyor 3, and a vertical second support rod 14 is welded to the side of the tail dense frame 11 on the same side. The top heights of the first support rod 13 and the second support rod 14 are the same, and the height of the cable rack 9 is half the height of the second support rod 14; both ends of the first support rod 13 and the top of the second support rod 14 are connected to a guide pulley 5, the front end of the tail dense frame 11 is connected to one end of the wire rope 6, and the other end of the wire rope 6 is sequentially wound from the bottom of the guide pulley 5 at the bottom of the first support rod 13 to the top of the guide pulley 5 at the top of the first support rod 13, and then horizontally wound to the top of the guide pulley 5 of the second support rod 14, and finally the end of the wire rope 6 is connected to the tail dense frame 11 below the second support rod 14.

[0024] Three suspension pulleys 7 are installed on the horizontal section of wire rope 6 between the first support rod 13 and the second support rod 14. Six hanging rings 4 are movably connected to the side of the secondary belt conveyor 3. The hanging rings 4 can slide left and right along the side of the secondary belt conveyor 3, similar to curtain hooks, so that the spacing of the hanging rings 4 can be adjusted at any time according to the cable specifications. One end of the cable 12 is connected to the distribution box 8, and the other end passes through all the hanging rings 4 and suspension pulleys 7 in sequence before being coiled on the cable rack 9. The end of the cable 12 is connected to a set of locked hooks 10 located in the excavation tunnel. Among them, all hanging rings 4 are arranged in groups of three and are all arranged in a collinear manner. The spacing between adjacent hanging rings 4 and adjacent suspension pulleys 7 is 30 mm.

[0025] When the tunnel boring machine 1 moves forward and backward, it drives the first belt conveyor 2 to move forward and backward, and the first belt conveyor 2 then drives the second belt conveyor 3 to move synchronously. At the same time, the first support rod 13 moves synchronously with the second belt conveyor 3. At this time, the wire rope 6 and the cable 12 on the wire rope 6 will also move synchronously with the second belt conveyor 3 to cooperate with the tunnel boring machine to perform excavation work. During the excavation process, redundant cables will be coiled on the cable rack 9 to avoid long-term dragging on the ground and causing damage. When the moving range of the tunnel boring machine 1 exceeds the extended length of the cable line, the cable line on the cable rack 9 can also be removed and hung on the excavation tunnel hook 10 closest to the tunnel boring machine 1, and the end of the cable 12 is fixed to the hook 10 to flexibly complete the excavation work beyond the range.

Claims

1. A device for moving and releasing cables at the rear of a tunnel boring machine, comprising a tunnel boring machine (1) arranged in a tunneling tunnel, wherein the rear end of the tunnel boring machine (1) is connected to a first belt conveyor (2), and the rear end of the first belt conveyor (2) is connected to a second belt conveyor (3); the rear end of the tunnel boring machine (1) is also connected to a power distribution box (8), and is characterized in that: The bottom of the second belt conveyor (3) is slidably connected to a tail frame (11), and the rear end of the tail frame (11) is connected to a cable rack (9); the side of the second belt conveyor (3) is connected to a vertical first support rod (13), and the side of the tail frame (11) on the same side is connected to a vertical second support rod (14); both ends of the first support rod (13) and the top of the second support rod (14) are connected to guide pulleys (5), the front end of the tail frame (11) is connected to one end of the wire rope (6), and the other end of the wire rope (6) is connected to the tail frame (11) below the second support rod (14) after passing through all the guide pulleys (5) on the first support rod (13) and the second support rod (14) in sequence; A plurality of suspension pulleys (7) are passed through the horizontal section of the steel wire rope (6) between the first support rod (13) and the second support rod (14), and a plurality of hanging rings (4) are provided on the side of the second belt conveyor (3); one end of the cable (12) is connected to the distribution box (8), and the other end passes through all the hanging rings (4) and the suspension pulleys (7) in sequence and is then coiled on the cable rack (9), and the end of the cable (12) is connected to a hook (10) provided in the excavation tunnel.

2. The rear cable moving and retracting device for a tunnel boring machine according to claim 1, characterized in that: The hanging rings (4) are all arranged collinearly.

3. The rear cable moving and retracting device for a tunnel boring machine according to claim 2, characterized in that: The hanging ring (4) is movably arranged on the side of the second belt conveyor (3) and can slide left and right along the side of the second belt conveyor (3).

4. The rear cable moving and retracting device for a tunnel boring machine according to claim 3, characterized in that: The spacing between adjacent hanging rings (4) is 30 to 40 mm.

5. The rear cable moving and retracting device for a tunnel boring machine according to claim 4, characterized in that: The spacing between adjacent suspension pulleys (7) is 30 to 40 mm.

6. A rear cable moving and retracting device for a tunnel boring machine according to any one of claims 1 to 5, characterized in that: The tops of the first support rod (13) and the second support rod (14) are at the same height.

7. The rear cable moving and retracting device for a tunnel boring machine according to claim 6, characterized in that: The cable rack (9) is a cylindrical hollow frame.

8. The rear cable moving and retracting device for a fully mechanized tunnel boring machine according to claim 7, characterized in that: The height of the cable rack (9) is less than or equal to half the height of the second support rod (14).

9. The rear cable moving and retracting device for a tunnel boring machine according to claim 8, characterized in that: The hooks (10) are at least three in a group, and the end of the cable (12) is connected to a group of hooks (10).

10. The rear cable moving and retracting device for a tunnel boring machine according to claim 9, characterized in that: The hook (10) is a lockable hook.

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