Method and system for paying off thick cable in underground coal mine

Abstract

The invention discloses a method and system for paying off a thick cable in an underground coal mine, and the method comprises the steps: 1, fixing a plurality of fixed pulleys at the top of a roadway through an anchor rod, and 2, hoisting a cable reel for coiling the cable at the top of the roadway through a hoisting anchor cable, and enabling the cable reel to be located at an arrangement starting point where the thick cable needs to be arranged; 3, a traction rope sequentially penetrates through the fixed pulleys; 4, one end of the traction rope at the arrangement starting point of the thick cable is connected with the head end of the thick cable of the cable reel; 5, pulling the pulling rope at the arrangement end point of the thick cable by using power equipment, and further enabling the pulling rope to pull the thick cable to sequentially pass through the fixed pulleys until the head end of the thick cable reaches the arrangement end point; the cable reel is fixed to the top of the roadway, the cable is connected with the traction rope, meanwhile, the top of the roadway is provided with the fixed pulley and the turning guide device, power equipment can be used for pulling the cable through the traction rope for paying off, time and labor are saved, and the production efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of cable laying, and in particular relates to a method and a system for laying out thick cables in coal mines. Background Art

[0002] High-voltage cables in coal mines are mainly used for power transmission in coal mines, providing power support for various equipment underground. Except for cables connected to handheld or mobile equipment, cables must be suspended when laid underground.

[0003] The diameter of the cables used in coal mining working faces is 50-185mm, the length of a single cable can be up to about 1,000 meters, and the maximum weight of a single cable can reach 10 tons. The conventional laying-out method uses a large amount of manpower to pull and transport the cables, and then hang the cables on the cable hooks with cable support rods. This is time-consuming and labor-intensive, requires a large number of people, has great labor intensity, and a long construction period. In addition, the conditions in the underground tunnels are complex, and manual pulling and lifting of cables is prone to unsafe accidents. Summary of the invention

[0004] The purpose of the present invention is to provide a method and system for laying out thick cables in coal mines, so as to solve the problems of time-consuming, labor-intensive and poor safety in the current cable laying process.

[0005] The present invention adopts the following technical scheme: a method for laying out a thick cable in a coal mine, comprising:

[0006] Step 1: Using anchor rods to fix a plurality of fixed pulleys on the top of the tunnel, so that the plurality of fixed pulleys are arranged in a straight line and at intervals;

[0007] Step 2: Use a lifting anchor cable to hoist the cable drum with the coiled cable on the top of the tunnel and at the starting point where the thick cable needs to be laid;

[0008] Step 3: Pass the traction rope through each fixed pulley in sequence, so that one end of the traction rope is located at the starting point of the thick cable and the other end is located at the end point of the thick cable;

[0009] Step 4: Connect one end of the traction rope at the starting point of the thick cable arrangement to the head end of the thick cable on the cable drum;

[0010] Step 5: At the end point of the thick cable arrangement, use a power device to pull the traction rope, so that the traction rope pulls the thick cable through each fixed pulley in turn until the head end of the thick cable reaches the arrangement end point.

[0011] Furthermore, before step 1, the method further includes: installing a plurality of cable hooks on the top of the tunnel, and each cable hook is in a straight line shape and arranged at intervals, and each cable hook is arranged in a one-to-one correspondence with each fixed pulley.

[0012] Furthermore, the power equipment in step 5 is an explosion-proof rubber-wheeled vehicle.

[0013] Furthermore, in step 4, when the traction rope at the starting point of the thick cable is connected to the cable head end of the cable drum, the cable head mesh sleeve and the universal joint are used for connection.

[0014] Furthermore, after step 5, the thick cables are hung on the pre-installed cable hooks, and then the fixed pulleys are removed for later use.

[0015] Furthermore, in step 1, if there is a bend in the tunnel, a bend guide device is installed between two adjacent fixed pulleys at the bend to guide the traction rope and the thick cable.

[0016] A system for laying out a thick cable in a coal mine, comprising:

[0017] Multiple cable hooks are arranged in a straight line and at intervals; they are fixed on the top of the tunnel along the direction of the tunnel;

[0018] Multiple fixed pulleys are arranged in a straight line and spaced apart; they are fixed to the top of the tunnel using anchor rods along the tunnel direction and are arranged close to corresponding cable hooks;

[0019] Power equipment, located at the end point of the thick cable layout;

[0020] A traction rope, one end of which is located at the starting point of the thick cable and connected to the power device, and the other end of which passes through each fixed pulley in turn and continuously extends to the starting point of the thick cable;

[0021] The cable drum is hoisted at the top of the tunnel by means of a hoisting anchor cable and is located at the starting point where the thick cable needs to be laid; the thick cable is wound around the cable drum and the head end of the thick cable is connected to a traction rope located at the starting point of the thick cable layout; then, the traction rope is pulled by the power equipment to pull the thick cable through each fixed pulley in turn until the head end of the thick cable reaches the layout end point.

[0022] Furthermore, it also includes: a turning guide device arranged between two adjacent fixed pulleys at the turning point of the laneway, and the turning guide device is used to guide the traction rope and the thick cable at the turning point.

[0023] Furthermore, the turning guide device comprises:

[0024] A tunnel fixing frame, one side of which is installed on the inner side tunnel wall at the bend;

[0025] Three rollers are successively installed in a triangular shape on the tunnel fixing frame. The three rollers cooperate with each other to form a triangular guide channel, thereby allowing the thick cable to pass through the guide channel and guide the thick cable.

[0026] Further, the tunnel fixing frame comprises:

[0027] The side wall fixing rod is arranged vertically and fixed on the inner side wall of the laneway at the bend;

[0028] A first ear plate, fixed to the middle portion of the side wall fixing rod;

[0029] An upper fixing rod is arranged horizontally, an inner end of which is fixed to the upper end of the side wall fixing rod, and an outer end of which extends toward the center of the laneway;

[0030] A lower fixing rod is arranged horizontally, with its inner end fixed to the lower end of the side wall fixing rod and its outer end extending toward the center of the laneway;

[0031] A second ear plate is fixed to the outer end of the upper fixing rod;

[0032] A third ear plate is fixed to the outer end of the lower fixing rod and is located below the second ear plate;

[0033] A roller is respectively installed between the first ear plate and the third ear plate, between the third ear plate and the second ear plate, and between the second ear plate and the first ear plate, so that the three rollers form a triangular guide channel.

[0034] The beneficial effects of the present invention are:

[0035] The present invention fixes the cable drum on the top of the tunnel, connects the cable with the traction rope, and arranges a fixed pulley and a turning guide device on the top of the tunnel, so that the power equipment can be used to pull the cable through the traction rope to release the cable, which saves time and labor and improves production efficiency.

[0036] The present invention utilizes power equipment to pull the cable through a traction rope during the wire-laying process to realize the wire-laying process, without the need for manual lifting of the cable, thus greatly improving safety;

[0037] After the cable is released, the cable is gradually taken out from the fixed pulley and then hung on the cable hook. The fixed pulley can be removed and reused, thereby reducing the construction cost.

[0038] During the wire laying process, the present invention fixes a turning guide device on the side wall of the tunnel at the turning point of the tunnel. The turning guide device uses three rollers to form a triangular guide channel, which can provide good guidance and load-bearing effects for the traction rope or cable, thereby preventing it from deflecting at the turning point of the tunnel or sagging due to gravity. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the use of the present invention;

[0040] Figure 2 It is a schematic diagram of the structure of the turning guide device in the present invention;

[0041] Among them, 1. Tunnel fixed frame; 2. Roller; 3. Side wall fixed rod; 4. First ear plate; 5. Upper fixed rod; 6. Lower fixed rod; 7. Second ear plate; 8. Third ear plate; 9. Fixed pulley; 10. Cable drum; 11. Arrangement starting point; 12. Arrangement end point; 13. Power equipment; 14. Traction rope. DETAILED DESCRIPTION

[0042] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] The present invention provides a method for laying out a thick cable in a coal mine. Figure 1 As shown, including:

[0044] Step 1: Using anchor rods to fix multiple fixed pulleys 9 on the top of the tunnel, so that the multiple fixed pulleys 9 are in a straight line and arranged at intervals;

[0045] Step 2: The cable drum 10 wound with the cable is hoisted at the top of the tunnel and located at the starting point 11 where the thick cable needs to be laid using a hoisting anchor cable;

[0046] Step 3: Pass the traction rope 14 through each fixed pulley 9 in sequence, so that one end of the traction rope 14 is located at the arrangement starting point 11 of the thick cable, and the other end is located at the arrangement end point 12 of the thick cable;

[0047] Step 4: Connect one end of the traction rope 14 of the thick cable arrangement starting point 11 to the head end of the thick cable of the cable drum 10;

[0048] Step 5: At the end point 12 of the thick cable arrangement, the power device 13 is used to pull the traction rope 14, so that the traction rope 14 pulls the thick cable through each fixed pulley 9 in sequence until the head end of the thick cable reaches the arrangement end point 12.

[0049] Wherein, before step 1, the method also includes: installing a plurality of cable hooks on the top of the tunnel, and each cable hook is in a "one" shape and arranged at intervals, and each cable hook is arranged one by one corresponding to each fixed pulley.

[0050] Among them, the power equipment 13 in step 5 is an explosion-proof rubber-wheeled vehicle.

[0051] In step 4, when the traction rope 14 of the arrangement starting point 11 of the thick cable is connected to the cable head end of the cable drum 10, the cable head mesh and the universal joint are used for connection.

[0052] Wherein, after step 5, the thick cable is hung on each pre-installed cable hook, and then each fixed pulley is removed for later use.

[0053] Among them, if there is a bend in the tunnel in step 1, a bend guide device is installed between two adjacent fixed pulleys at the bend to guide the traction rope 14 and the thick cable.

[0054] The present invention also discloses a system for laying out thick cables in coal mines, comprising: a plurality of cable hooks, a plurality of fixed pulleys 9, a power device 13, a traction rope 14, and a cable drum 10.

[0055] Multiple cable hooks are arranged in a straight line and at intervals; multiple cable hooks are fixed at the top of the tunnel along the tunnel; multiple fixed pulleys 9 are arranged in a straight line and at intervals; multiple fixed pulleys 9 are fixed at the top of the tunnel using anchor rods along the tunnel and are set close to the corresponding cable hooks.

[0056] The power device 13 is located at the end point 12 of the thick cable arrangement; one end of the traction rope 14 is located at the starting point 11 of the thick cable arrangement and is connected to the power device 13, and the other end of the traction rope 14 passes through each fixed pulley 9 in turn and continuously extends to the starting point 11 of the thick cable arrangement.

[0057] The cable drum 10 is hoisted at the top of the tunnel by means of a hoisting anchor cable and is located at the starting point 11 where the thick cable needs to be arranged; the thick cable is wound around the cable drum 10 and the head end of the thick cable is connected to a traction rope 14 located at the starting point 11 of the arrangement of the thick cable; and then the traction rope 14, under the pulling of the power equipment 13, pulls the thick cable through each fixed pulley 9 in turn until the head end of the thick cable reaches the arrangement end point 12.

[0058] The system for laying out thick cables in coal mines disclosed in the present invention also includes a cable head mesh sleeve, which is used to connect the traction rope 14 of the thick cable arrangement starting point 11 with the head end of the cable of the cable drum 10.

[0059] The system disclosed in the present invention for laying out thick cables in coal mines also includes: a turning guide device arranged between two adjacent fixed pulleys 9 at the turning of the tunnel, the turning guide device is used to guide the traction rope 14 and the thick cables at the turning.

[0060] like Figure 2 As shown, the turning guide device includes: a tunnel fixing frame 1 and three rollers 2, one side of the tunnel fixing frame 1 is installed on the inner tunnel side wall at the turning; the three rollers 2 are installed in a triangular shape on the tunnel fixing frame 1 in sequence, and the three rollers 2 cooperate with each other to form a triangular guide channel, so that the thick cable can pass through the guide channel and guide the thick cable.

[0061] The tunnel fixing frame 1 comprises: a side wall fixing rod 3, a first ear plate 4, an upper fixing rod 5, a lower fixing rod 6, a second ear plate 7, and a third ear plate 8.

[0062] The side wall fixing rod 3 is arranged vertically, and the side wall fixing rod 3 is fixed on the inner side wall of the laneway at the bend; the first ear plate 4 is fixed on the middle part of the side wall fixing rod 3; the upper fixing rod 5 is arranged horizontally, and the inner end of the upper fixing rod 5 is fixed on the upper end of the side wall fixing rod 3, and the outer end of the upper fixing rod 5 extends toward the center of the laneway.

[0063] The lower fixed rod 6 is arranged horizontally, the inner end of the lower fixed rod 6 is fixed to the lower end of the side wall fixed rod 3, and the outer end of the lower fixed rod 6 extends toward the center of the tunnel; the second ear plate 7 is fixed to the outer end of the upper fixed rod 5; the third ear plate 8 is fixed to the outer end of the lower fixed rod 6 and is located below the second ear plate 7.

[0064] A roller 2 is installed between the first ear plate 4 and the third ear plate 8, between the third ear plate 8 and the second ear plate 7, and between the second ear plate 7 and the first ear plate 4, respectively, so that the three rollers 2 form a triangular guide channel.

[0065] The method of use of the present invention is:

[0066] Fix the cable drum 10 with the coiled cable on the top of the tunnel, then fix the fixed pulley 9 on the side wall of the tunnel along the line where the thick cable needs to be arranged, and then pass the traction rope 14 through each fixed pulley 9 in turn, so that one end of the traction rope 14 is located at the arrangement starting point 11 of the thick cable, and the other end is located at the arrangement end point 12 of the thick cable, and then connect the end of the traction rope 14 located at the arrangement starting point 11 of the thick cable to the head end of the thick cable on the cable drum 10, start the power equipment 13 to pull the traction rope 14, and then the traction rope 14 pulls the thick cable through each fixed pulley 9 in turn until the head end of the thick cable reaches the arrangement end point 12.

[0067] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for laying out a thick cable in a coal mine, characterized in that: include: Step 1: Using anchor rods to fix a plurality of fixed pulleys (9) on the top of the tunnel, so that the plurality of fixed pulleys (9) are arranged in a straight line and at intervals; Step 2: Using a lifting anchor cable, the cable drum (10) wound with the cable is hoisted at the top of the tunnel and located at the starting point (11) where the thick cable needs to be laid; Step 3: Pass the traction rope (14) through each fixed pulley (9) in sequence, so that one end of the traction rope (14) is located at the starting point (11) of the thick cable, and the other end is located at the end point (12) of the thick cable; Step 4: Connect one end of the traction rope (14) at the starting point (11) of the thick cable arrangement to the head end of the thick cable on the cable drum (10); Step 5: At the end point (12) of the thick cable arrangement, the power device (13) is used to pull the traction rope (14), so that the traction rope (14) pulls the thick cable through each fixed pulley (9) in sequence until the head end of the thick cable reaches the arrangement end point (12).

2. A method for laying out a thick cable in a coal mine according to claim 1, characterized in that: Before step 1, the method further includes: installing a plurality of cable hooks on the top of the tunnel, wherein the cable hooks are in a straight line shape and are arranged at intervals, and each of the cable hooks is arranged in a one-to-one correspondence with each fixed pulley (9).

3. A method for laying out a thick cable in a coal mine according to claim 1, characterized in that: The power equipment (13) in step 5 is an explosion-proof rubber-wheeled vehicle.

4. A method for laying out a thick cable in a coal mine according to claim 1, characterized in that: In step 4, the traction rope (14) of the starting point (11) of the thick cable is connected to the cable head end of the cable drum (10) by using a cable head mesh and a universal joint.

5. A method for laying out a thick cable in a coal mine according to claim 2, characterized in that: After step 5, the thick cable is hung on the pre-installed cable hooks, and then the fixed pulleys (9) are removed for later use.

6. A method for laying out a thick cable in a coal mine according to claim 1, characterized in that: In step 1, if a lane bend is encountered, a bend guide device is installed between two adjacent fixed pulleys (9) at the bend, thereby guiding the traction rope (14) and the thick cable.

7. A system for laying out thick cables in coal mines, characterized in that: include: Multiple cable hooks are arranged in a "one" shape and at intervals; they are fixed on the top of the tunnel along the direction of the tunnel; A plurality of fixed pulleys (9) are arranged in a straight line and at intervals; they are fixed to the top of the tunnel using anchor rods along the tunnel direction and are arranged close to corresponding cable hooks; A power device (13) is located at the end point (12) of the thick cable; A traction rope (14), one end of which is located at the starting point (11) of the thick cable and connected to the power device (13), and the other end of which passes through each of the fixed pulleys (9) in sequence and continuously extends to the starting point (11) of the thick cable; A cable drum (10) is hoisted at the top of a tunnel by means of a hoisting anchor cable and is located at a starting point (11) where a thick cable needs to be laid; a thick cable is wound around the cable drum (10) and the head end of the thick cable is connected to a traction rope (14) located at the starting point (11) of the thick cable; and the traction rope (14) is pulled by a power device (13) to sequentially pass through each fixed pulley (9) until the head end of the thick cable reaches the end point (12) of the laying.

8. A system for laying out thick cables in coal mines according to claim 7, characterized in that: Also includes: A turning guide device is arranged between two adjacent fixed pulleys (9) at a turning point in a laneway, and the turning guide device is used to guide a traction rope (14) and a thick cable at the turning point.

9. A system for laying out thick cables in coal mines according to claim 8, characterized in that: The turning guide device comprises: A tunnel fixing frame (1), one side of which is installed on the inner side wall of the tunnel at the bend; Three rollers (2) are sequentially installed in a triangular shape on the lane fixing frame (1); the three rollers (2) cooperate with each other to form a triangular guide channel, thereby allowing the thick cable to pass through the guide channel and guide the thick cable.

10. A system for laying out thick cables in coal mines according to claim 9, characterized in that: The tunnel fixing frame (1) comprises: A side wall fixing rod (3) is arranged vertically and fixed on the inner side wall of the laneway at the bend; A first ear plate (4) fixed to the middle portion of the side wall fixing rod (3); An upper fixing rod (5) is arranged horizontally, with its inner end fixed to the upper end of the side wall fixing rod (3) and its outer end extending toward the center of the laneway; A lower fixing rod (6) is arranged horizontally, with its inner end fixed to the lower end of the side wall fixing rod (3) and its outer end extending toward the center of the laneway; A second ear plate (7) fixed to the outer end of the upper fixing rod (5); A third ear plate (8) fixed to the outer end of the lower fixing rod (6) and located below the second ear plate (7); A roller (2) is respectively installed between the first ear plate (4) and the third ear plate (8), between the third ear plate (8) and the second ear plate (7), and between the second ear plate (7) and the first ear plate (4), so that the three rollers (2) form a triangular guide channel.

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