Cable supporting device of heading machine

Abstract

The utility model discloses a heading machine cable supporting device. The lower end of a first bracket is fixedly supported on a buffer frame of a belt conveyor; the lower end of the second bracket is fixedly connected to a second conveyer of the heading machine; the first guide pulley and the second guide pulley have the same height and are respectively mounted at the upper ends of the first bracket and the second bracket; the guide pulley III is mounted on the supporting seat I; the buffer comprises a connecting seat and a spring; the connecting base is installed on the first supporting base, and one end of the spring is connected to the connecting base. The tensioning mechanism is mounted on the supporting seat II; one end of the steel wire rope is connected with a hook of the spring, and the other end of the steel wire rope is connected with the tensioning mechanism after bypassing the plurality of guide pulleys and is tensioned by the tensioning mechanism; the upper ends of the plurality of sliding wire brackets are in rolling connection with the steel wire rope; a cable is connected with the lower ends of the plurality of sliding wire supporting frames through the plurality of cable fixing clamps; the chain is evenly divided into a plurality of third connecting sections, and the two ends of the third connecting sections are connected with the two adjacent sliding wire supporting frames respectively. The device can prevent the cable from being damaged, and can ensure the reliability of power supply.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable protection, and in particular relates to a cable supporting device for a tunnel boring machine. Background Art

[0002] During the operation of a tunnel boring machine in a coal mine, there will be a back-and-forth reciprocating tunneling operation, which requires the frequent movement of cables to effectively ensure the supply of electricity. In traditional technologies, power supply cables are usually dragged directly on the ground. Since the ground underground is usually uneven and there are some relatively vertical and hard objects stored there, this will not only easily cause cable wear, but also often requires manual dragging, which makes the labor intensity of the operators very high. In order to prevent the cables from being worn during the movement, a dragging device is generally used. The existing dragging device has a relatively simple structure, and the cables often become too loose and drag on the ground. At the same time, the cables are also prone to being over-tightened. In either case, the cables are prone to damage, and the purpose of protecting the cables cannot be truly achieved. For this reason, there is an urgent need to provide a wire supporting device with better wire supporting effect and better cable protection effect. Summary of the Invention

[0003] In response to the problems existing in the above-mentioned prior art, the utility model provides a cable supporting device for a tunnel boring machine, which can enable the cable to move synchronously with the forward and backward movement of the tunnel boring machine, thereby avoiding damage to the cable, effectively ensuring the reliability of power supply, and at the same time, effectively reducing the workload of operators.

[0004] In order to achieve the above-mentioned object, the present invention provides a cable supporting device for a roadheader, comprising a belt conveyor buffer frame, a second roadheader transporter, a first bracket, a second bracket, a first guide pulley, a second guide pulley, a third guide pulley, a fourth guide pulley, a buffer, a tensioning mechanism, a steel wire rope, a sliding cable supporting frame, a cable and a chain;

[0005] The end of the second transporter of the tunnel boring machine is connected to a rolling support and is rollingly supported on the buffer frame of the belt conveyor through the rolling support;

[0006] The first bracket is located on a side away from the second transporter of the tunnel boring machine, and its lower end is fixedly supported on the buffer frame of the belt conveyor;

[0007] The second bracket is located on a side close to the second transporter of the tunnel boring machine, with its lower end fixedly connected to the second transporter of the tunnel boring machine and its upper end located above the second transporter of the tunnel boring machine;

[0008] The guide pulley 1 and the guide pulley 2 have the same height, and the guide pulley 1 is installed on the upper end of the first bracket, and the guide pulley 2 is installed on the upper end of the second bracket;

[0009] The guide pulley three is located below the guide pulley one and is installed on the support seat one of the belt conveyor buffer frame;

[0010] The buffer is located below the guide pulley three and includes a connecting seat and a spring hook; the connecting seat is installed on the supporting seat one, and one end of the spring is connected to the connecting seat;

[0011] The tensioning mechanism is installed on the second support seat at the head end of the buffer frame of the belt conveyor;

[0012] One end of the wire rope is connected to the other end of the spring, and the other end of the wire rope passes through the guide pulley 3 counterclockwise, the guide pulley 1 clockwise, the guide pulley 2 clockwise, and the guide pulley 4 counterclockwise in sequence, and is connected to the tensioning mechanism, and is tensioned between the guide pulley 3, the guide pulley 1, the guide pulley 2 and the guide pulley 4 by the tensioning mechanism;

[0013] The upper end of the sliding wire support is connected to the wire rope in a rolling manner through a built-in guide pulley, and a connection point is provided on the upper part below the guide pulley; a plurality of sliding wire supports are sequentially distributed between the first guide pulley and the second guide pulley, and a plurality of connection sections 1 are formed between the plurality of sliding wire supports;

[0014] One end of the cable is connected to the power supply located on the left side of the first bracket, and the other end is connected to the distribution box of the tunnel boring machine after passing through the lower ends of multiple sliding cable supports in sequence, and is connected to the lower end of each sliding cable support through a cable fixing clamp. At the same time, the cable between the multiple cable fixing clamps forms multiple connection sections of equal length.

[0015] The chain is evenly divided into multiple connection sections three, multiple connection sections three correspond to multiple connection sections two, and the two ends of each connection section three are respectively connected to two connection points on two adjacent sliding wire support frames. At the same time, the length of the connection section three is less than the length of the connection section two.

[0016] As a preference, the tensioning mechanism is a manual rope reel.

[0017] As a preferred embodiment, the sliding wire support frame includes side guards, wire pulleys and extension rods, the two side guards are distributed at intervals, the two wire pulleys are distributed adjacent to each other up and down, and are rotatably connected between the upper parts of the two side guards through the rotating shaft at the center; the upper end of the extension rod extends between the lower parts of the two side guards, and is rotatably connected to the two side guards through a pin shaft.

[0018] As a preference, there are multiple sliding wire supports.

[0019] In the present invention, a first bracket is mounted on a belt conveyor buffer frame away from the second transporter of a tunnel boring machine, and a guide pulley 1 is mounted on its upper end. Simultaneously, a second bracket is mounted on the second transporter of the tunnel boring machine, and a guide pulley 2 is mounted on its upper end. This provides two top support points for the wire rope. Since the second transporter of the tunnel boring machine is supported on the belt conveyor buffer frame by rolling means via rolling supports, the distance between the two top support points can be adjusted synchronously with the tunnel boring machine. A guide pulley 3 and a buffer are mounted on the first support seat, a guide pulley 4 is mounted at the lower end of the second bracket, and a tensioning mechanism is mounted on the second support seat at the head end of the belt conveyor buffer frame. Simultaneously, one end of the wire rope is connected to a spring in the buffer, and the other end of the wire rope is sequentially wound through the guide pulley 3, the first guide pulley, the second guide pulley, and the fourth guide pulley before being connected to the tensioning mechanism. This facilitates tightening of the wire rope via the tensioning mechanism, thereby ensuring that the wire rope is always in a taut state during the movement of the second transporter of the tunnel boring machine. Multiple sliding wire supports are rollingly connected between guide pulleys one and two. At the same time, the ends of multiple connection sections two of the cable are connected to the lower ends of multiple sliding wire supports through cable fixing clamps, and the ends of multiple connection sections three of the chain are connected to the upper parts of multiple sliding wire supports, and the length of connection section three is less than the length of connection section two. In this way, during the dragging of the cable, the chain between connection section three can effectively limit the displacement of two adjacent sliding wire supports, so that the cable in connection section two will not be excessively dragged, and the cable will not be strained. At the same time, since the steel wire rope between guide pulleys one and two is always in a tensioned state under the action of the tensioning mechanism, it can avoid the cable being dragged on the ground or on the belt conveyor buffer frame, and effectively avoid accidental damage due to contact with hard objects.

[0020] This device enables the cable to move synchronously with the forward and backward movement of the tunnel boring machine, which can avoid damage to the cable, effectively ensure the reliability of power supply, and at the same time effectively reduce the workload of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the sliding wire support frame in the utility model.

[0023] In the figure: 1. Belt conveyor buffer frame, 2. Tunneling machine second transport machine, 3. First bracket, 4. Rolling bearing, 5. Second bracket, 6. Guide pulley 1, 7. Guide pulley 2, 8. Guide pulley 3, 9. Guide pulley 4, 10. Support seat 1, 11. Buffer, 12. Connecting seat, 13. Spring, 14. Tensioning mechanism, 15. Support seat 2, 16. Wire rope, 17. Sliding wire support frame, 18. Pin, 19. Cable, 20. Chain, 21. Connection point, 22. Connecting section 2, 23. Connecting section 3, 24. Side baffle, 25. Guide pulley, 26. Extension rod. DETAILED DESCRIPTION

[0024] The utility model will be further described below.

[0025] like Figure 1 and Figure 2 As shown, the present invention provides a cable supporting device for a roadheader, comprising a belt conveyor buffer frame 1, a roadheader second transporter 2, a first bracket 3, a second bracket 5, a guide pulley 1 6, a guide pulley 2 7, a guide pulley 3 8, a guide pulley 4 9, a buffer 11, a tensioning mechanism 14, a steel wire rope 16, a sliding cable supporting frame 17, a cable 19 and a chain 20;

[0026] The end of the tunnel boring machine second transporter 2 is connected to a rolling support 4, and is rollingly supported on the belt conveyor buffer frame 1 through the rolling support 4;

[0027] The first bracket 3 is located on a side away from the tunnel boring machine 2, and its lower end is fixedly supported on the belt conveyor buffer frame 1;

[0028] The second bracket 5 is located on a side close to the second transporter 2 of the tunnel boring machine, with its lower end fixedly connected to the second transporter 2 of the tunnel boring machine, and its upper end is located above the second transporter 2 of the tunnel boring machine;

[0029] The guide pulley 1 6 and the guide pulley 2 7 have the same height, and the guide pulley 1 6 is installed on the upper end of the first bracket 3, and the guide pulley 2 7 is installed on the upper end of the second bracket 5;

[0030] The guide pulley 3 8 is located below the guide pulley 1 6 and is installed on the support seat 10 of the belt conveyor buffer frame 1;

[0031] The buffer 11 is located below the guide pulley 3 8 and includes a connecting seat 12 and a spring 13; the connecting seat 12 is mounted on the support seat 10, and one end of the spring 13 is connected to the connecting seat 12;

[0032] The tensioning mechanism 14 is mounted on the support seat 2 15 at the head end of the belt conveyor buffer frame 1;

[0033] One end of the wire rope 16 is connected to the other end of the spring 13, and the other end of the wire rope 16 passes through the guide pulley 3 8 counterclockwise, the guide pulley 1 6 clockwise, the guide pulley 2 7 clockwise, and the guide pulley 4 9 counterclockwise, and is connected to the tensioning mechanism 14. The tensioning mechanism 14 is tensioned between the guide pulley 3 8, the guide pulley 1 6, the guide pulley 2 7 and the guide pulley 4 9;

[0034] The upper end of the sliding wire support frame 17 is rollingly connected to the wire rope 16 through the built-in wire pulley 25, and a connection point 21 is provided on the upper part below the wire pulley 25; multiple sliding wire supports 17 are sequentially distributed between the guide pulley 1 6 and the guide pulley 2 7, and multiple connection sections 1 are formed between the multiple sliding wire supports 17;

[0035] One end of the cable 19 is connected to the power supply located on the left side of the first bracket 3, and the other end thereof passes through the lower ends of multiple sliding wire supports 17 in sequence and is connected to the distribution box of the tunnel boring machine. The cable 19 is connected to the lower end of each sliding wire support 17 through a cable fixing clamp. At the same time, the cable 19 between the multiple cable fixing clamps forms a plurality of connection sections 22 of equal length.

[0036] The chain 20 is evenly divided into a plurality of connection sections three 23, and the plurality of connection sections three 23 corresponds to the plurality of connection sections two 22, and the two ends of each connection section three 23 are respectively connected to the two connection points 21 on the two adjacent sliding wire support frames 17. At the same time, the length of the connection section three 23 is less than the length of the connection section two 22.

[0037] As a preference, the tensioning mechanism 14 is a manual rope reel.

[0038] As a preferred embodiment, the sliding wire support frame 17 includes side fenders 24, a wire pulley 25 and an extension rod 26. The two side fenders 24 are distributed at intervals, and the two wire pulleys 25 are distributed adjacent to each other up and down, and are rotatably connected between the upper parts of the two side fenders 24 through the rotating shaft at the center; the upper end of the extension rod 26 extends between the lower parts of the two side fenders 24, and is rotatably connected to the two side fenders 24 through the pin shaft 18.

[0039] As a preference, there are multiple sliding wire support racks 17.

[0040] In the present invention, a first bracket is mounted on a belt conveyor buffer frame away from the second transporter of a tunnel boring machine, and a guide pulley 1 is mounted on its upper end. Simultaneously, a second bracket is mounted on the second transporter of the tunnel boring machine, and a guide pulley 2 is mounted on its upper end. This provides two top support points for the wire rope. Since the second transporter of the tunnel boring machine is supported on the belt conveyor buffer frame by rolling means via rolling supports, the distance between the two top support points can be adjusted synchronously with the tunnel boring machine. A guide pulley 3 and a buffer are mounted on the first support seat, a guide pulley 4 is mounted at the lower end of the second bracket, and a tensioning mechanism is mounted on the second support seat at the head end of the belt conveyor buffer frame. Simultaneously, one end of the wire rope is connected to a spring in the buffer, and the other end of the wire rope is sequentially wound through the guide pulley 3, the first guide pulley, the second guide pulley, and the fourth guide pulley before being connected to the tensioning mechanism. This facilitates tightening of the wire rope via the tensioning mechanism, thereby ensuring that the wire rope is always in a taut state during the movement of the second transporter of the tunnel boring machine. Multiple sliding wire supports are rollingly connected between guide pulleys one and two. At the same time, the ends of multiple connection sections two of the cable are connected to the lower ends of multiple sliding wire supports through cable fixing clamps, and the ends of multiple connection sections three of the chain are connected to the upper parts of multiple sliding wire supports, and the length of connection section three is less than the length of connection section two. In this way, during the dragging of the cable, the chain between connection section three can effectively limit the displacement of two adjacent sliding wire supports, so that the cable in connection section two will not be excessively dragged, and the cable will not be strained. At the same time, since the steel wire rope between guide pulleys one and two is always in a tensioned state under the action of the tensioning mechanism, it can avoid the cable being dragged on the ground or on the belt conveyor buffer frame, and effectively avoid accidental damage due to contact with hard objects.

[0041] This device enables the cable to move synchronously with the forward and backward movement of the tunnel boring machine, which can avoid damage to the cable, effectively ensure the reliability of power supply, and at the same time effectively reduce the workload of operators.

Claims

1. A cable support device for a tunnel boring machine, comprising a belt conveyor buffer frame (1) and a tunnel boring machine secondary transporter (2), wherein the end of the tunnel boring machine secondary transporter (2) is connected to a rolling support (4) and is rollingly supported on the belt conveyor buffer frame (1) through the rolling support (4); characterized in that: It also includes a first bracket (3), a second bracket (5), a guide pulley 1 (6), a guide pulley 2 (7), a guide pulley 3 (8), a guide pulley 4 (9), a buffer (11), a tensioning mechanism (14), a wire rope (16), a sliding wire support (17), a cable (19) and a chain (20); The first bracket (3) is located on a side away from the tunnel boring machine's second transporter (2), and its lower end is fixedly supported on the belt conveyor buffer frame (1); The second bracket (5) is located on a side close to the second transporter (2) of the tunnel boring machine, with its lower end fixedly connected to the second transporter (2) of the tunnel boring machine, and its upper end located above the second transporter (2) of the tunnel boring machine; The guide pulley 1 (6) and the guide pulley 2 (7) have the same height, and the guide pulley 1 (6) is installed on the upper end of the first bracket (3), and the guide pulley 2 (7) is installed on the upper end of the second bracket (5); The guide pulley three (8) is located below the guide pulley one (6) and is mounted on the support seat one (10) of the belt conveyor buffer frame (1); The buffer (11) is located below the guide pulley three (8), and includes a connecting seat (12) and a spring (13); the connecting seat (12) is mounted on the support seat one (10), and one end of the spring (13) is connected to the connecting seat (12); The tensioning mechanism (14) is mounted on a second support seat (15) at the head end of the belt conveyor buffer frame (1); One end of the steel wire rope (16) is connected to the other end of the spring (13), and the other end of the steel wire rope is passed through the guide pulley 3 (8) counterclockwise, the guide pulley 1 (6) clockwise, the guide pulley 2 (7) clockwise, and the guide pulley 4 (9) counterclockwise, and then connected to the tensioning mechanism (14). The tensioning mechanism (14) is tensioned between the guide pulley 3 (8), the guide pulley 1 (6), the guide pulley 2 (7) and the guide pulley 4 (9); The upper end of the sliding wire support frame (17) is rollingly connected to the wire rope (16) through the built-in wire pulley (25), and a connection point (21) is provided on the upper portion below the wire pulley (25); a plurality of sliding wire support frames (17) are sequentially distributed between the guide pulley 1 (6) and the guide pulley 2 (7), and a plurality of connection sections 1 are formed between the plurality of sliding wire support frames (17); One end of the cable (19) is connected to the power supply located on the left side of the first bracket (3), and the other end is connected to the distribution box of the tunnel boring machine after passing through the lower ends of multiple sliding wire support racks (17) in sequence, and is connected to the lower end of each sliding wire support rack (17) through a cable fixing clamp. At the same time, the cable (19) between the multiple cable fixing clamps forms a plurality of connection sections (22) of equal length. The chain (20) is evenly divided into a plurality of connection sections three (23), and the plurality of connection sections three (23) corresponds to the plurality of connection sections two (22), and the two ends of each connection section three (23) are respectively connected to the two connection points (21) on the two adjacent sliding wire support frames (17), and at the same time, the length of the connection section three (23) is less than the length of the connection section two (22).

2. The cable supporting device for a tunnel boring machine according to claim 1, characterized in that: The tensioning mechanism (14) is a manual rope reel.

3. A cable supporting device for a roadheader according to claim 1 or 2, characterized in that: The sliding wire support frame (17) includes side baffles (24), a wire pulley (25) and an extension rod (26). The two side baffles (24) are spaced apart, and the two wire pulleys (25) are adjacently distributed up and down, and are rotatably connected between the upper parts of the two side baffles (24) through a rotating shaft at the center thereof; the upper end of the extension rod (26) extends between the lower parts of the two side baffles (24) and is rotatably connected to the two side baffles (24) through a pin shaft (18).

4. A cable supporting device for a roadheader according to claim 3, characterized in that: The number of the sliding wire support racks (17) is multiple.

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