Tail rope replacing device

Abstract

The invention belongs to the technical field of mine tail rope replacement, and particularly relates to a tail rope replacement device which comprises a new rope vehicle, the new rope vehicle is fixedly connected with a lower well mouth, and a new tail rope of the new rope vehicle is matched with a first cage of vertical transportation equipment; the old rope vehicle is fixedly connected with the lower well mouth, and a guide rope of the old rope vehicle is matched with an old tail rope of the vertical transportation equipment; the pulley guide roller is used for recycling the old tail rope, the pulley guide roller is rotationally connected with the lower well mouth, and the old tail rope and the new tail rope are both connected with the pulley guide roller in a rolling mode. According to the scheme, the problem that the tail rope is damaged due to friction during replacement is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of mine tail rope replacement, and particularly relates to a tail rope replacement device. Background Art

[0002] Vertical transportation equipment is generally set up at the working shaft of a mine to facilitate the transportation of various materials. The working shaft is generally divided into an upper shaft opening and a lower shaft opening. Commonly used vertical transportation equipment includes a derrick, a winch, a head rope, a tail rope, a rope splitting frame, a first cage and a second cage. The derrick is fixed above the upper shaft opening. The winch is used to pull the head rope, thereby driving the first cage and the second cage to move. The two ends of the head rope are respectively connected to the top of the first cage and the second cage, and the two ends of the tail rope are connected to the bottom of the first cage and the second cage. The tail rope will pass through the rope splitting frame, which is provided with two rope splitting holes. The function of the rope splitting frame is to prevent the first cage and the second cage from colliding.

[0003] At present, the existing quick replacement process of the tail rope with the announcement number CN101798045B has the following steps: 1. Bring the first cage to the wellhead; 2. Connect the new and old tail ropes; 3. The first cage rises, and the old tail rope with the new tail rope passes through the two rope holes of the rope splitting frame. When the rope head of the new tail rope passes through the first rope splitting hole to the wellhead, the new tail rope is separated from the old tail rope and the new tail rope is fixed; 4. Cut the old tail rope; 5. Bring the first cage up, and when the first cage cuts the rope head of the second broken part, 1. Bring the rope to the lower wellhead, connect the disconnected rope head with the old rope collection vehicle; 2. Lower the first cage, and collect the old rope with the old rope collection vehicle to collect the old tail rope; when the first cage reaches the lower wellhead, separate the old tail rope from the first cage, connect the first old rope end with the first disconnected rope head, and connect the new tail rope with the first cage; 3. Raise the first cage, collect the old rope with the old rope collection vehicle to collect the old tail rope, and when the first cage reaches the upper wellhead, separate the old tail rope from the second cage, break the new tail rope, and connect the new tail rope with the second cage. This method is replaced by a rope trolley, and its ingenious method can save labor time.

[0004] But there is also a problem: when the tail rope passes through the crossbeam, it will rub against the corner of the wellhead, which will cause damage to the tail rope. Summary of the invention

[0005] The present invention provides a tail rope replacement device, which is used to solve the problem of damage caused by friction when the tail rope is replaced.

[0006] The present invention provides a device for replacing a tail rope, comprising a new rope trolley: the new rope trolley is fixedly connected to the lower wellhead, and the new tail rope of the new rope trolley cooperates with the first cage of the vertical transportation equipment; an old rope trolley: the old rope trolley is fixedly connected to the lower wellhead, and the guide rope of the old rope trolley cooperates with the old tail rope of the vertical transportation equipment; a pulley guide roller: the pulley guide roller is used for recovering the old tail rope, the pulley guide roller is rotatably connected to the lower wellhead, and the old tail rope and the new tail rope are both rollingly connected to the pulley guide roller.

[0007] The principle of this scheme is as follows: the new rope car and the old rope car are placed at the lower wellhead, the winch is started to lower the first cage to the lower wellhead, and the second cage is raised to the upper wellhead; a new tail rope is drawn out from the new rope car, and the rope head of the new tail rope passes through the pulley guide roller and is connected and fixed with the old tail rope on one side of the second cage; the winch is started to drive the first cage to rise and the second cage to fall, so that the old tail rope drives the new tail rope to pass through the second rope splitting hole and the first rope splitting hole of the rope splitting frame in sequence. When the rope head of the new tail rope passes through the first rope splitting hole and moves to the lower wellhead, the new tail rope is separated from the old tail rope, and the new tail rope is fixed to the lower wellhead; the old tail rope is broken to form a first disconnected portion rope head and a second disconnected portion rope head; the winch is started to raise the first cage and lower the second cage, and when the first cage brings the second disconnected portion rope head to the lower wellhead, the second disconnected portion rope head passes through the pulley guide roller and is connected with the lead rope of the old rope car. Start the winch to lower the first cage and raise the second cage, and use the old rope trolley to collect the old tail rope on the rope head side of the second disconnected part; when the first cage is lowered to the lower wellhead, on the one hand, separate the first old rope end of the old tail rope from the first cage and connect the first old rope end to the rope head of the first disconnected part, and on the other hand, connect the rope head of the new tail rope to the first cage. Start the winch to raise the first cage and lower the second cage, and use the old rope trolley to collect the old tail rope on the rope head side of the first disconnected part. When the first cage moves to the upper wellhead and the second cage moves to the lower wellhead, on the one hand, separate the second old rope end of the old tail rope from the second cage, and use the old rope trolley to collect all the old tail ropes, and on the other hand, break the new tail rope and connect the new tail rope to the second cage to complete the entire replacement work.

[0008] The beneficial effect of this solution is that when releasing a new tail rope or collecting an old tail rope, the tail rope is collected and released through the pulley guide roller. The pulley guide roller can play a good guiding role and can also reduce the friction of the tail rope to prevent damage to the tail rope.

[0009] Furthermore, it also includes a protection mechanism, which includes a torsion spring, a fixed plate and a flip plate, the fixed plate is fixedly connected to the lower wellhead, the flip plate is rotationally connected to the fixed plate through the torsion spring, and the flip plate cooperates with the first cage.

[0010] In the implementation of this solution, personnel need to approach the first and second cages to fix or separate the tail ropes. Personnel will be in the working pit for a long time. During this process, various debris may fall from the top of the working pit due to wind, which may cause injuries to the personnel. When replacing the tail rope, the first cage often needs to move up and down. If only a shield is designed, it is easy to block the movement of the first cage.

[0011] In this solution, when the first cage has not moved to the lower wellhead, the flip plate will remain in a parallel state under the action of the torque spring, playing a shielding role to prevent objects from falling and injuring the staff. When the first cage reaches the lower wellhead, the flip plate will touch the first cage and flip under the force of the first cage to form a vertical state or a nearly vertical state. In this state, the flip plate can not only allow the first cage to pass, but also effectively protect the first cage from shaking and hitting the staff at this time, because when the first cage shakes, the flip plate can withstand the impact.

[0012] Furthermore, the flip plate is provided with a rope groove, and the rope groove cooperates with the head rope of the vertical transport device. In order to make the flip plate larger and protect more places, the flip plate needs to avoid the tail rope and the head rope, so a rope groove is provided on the flip plate so that the head rope and the tail rope are located in the rope groove.

[0013] Furthermore, it also includes a second cylinder and a trigger mechanism, the second cylinder includes a second cylinder body and a piston plate, the second cylinder body is connected to the rope groove, one end of the piston plate cooperates with the head rope, and the other end is slidably connected to the second cylinder, the trigger mechanism is used to control the movement of the piston plate, the trigger mechanism is fixedly connected to the rope groove, and the trigger mechanism is electrically connected to the second cylinder.

[0014] When the tail rope is replaced, the tail rope will be cut off, and the split rope frame will lose its function. If there is strong wind at this time, it is easy to cause the cage to shake, causing the cage to hit the well wall and be damaged. In this solution, when the first cage is moving and shaking due to wind force, the first rope will touch the trigger mechanism, and the trigger mechanism will control the second cylinder to operate, so that the piston plate extends out, blocking the outer part of the rope groove, so that the rope groove becomes a small rope hole. In this way, when the first rope shakes, due to the limitation of the rope hole position, most of the shaking cannot be transmitted, reducing the shaking degree of the first cage.

[0015] Further, the trigger mechanism is a first cylinder, which includes a first cylinder body, a piston rod and a spring. The first cylinder body is connected to the rope groove, one end of the piston rod cooperates with the head rope, and the other end is slidably connected to the first cylinder body, one end of the spring is fixedly connected to the first cylinder body, and the other end is fixedly connected to the piston rod, and the first cylinder body is connected to the second cylinder body.

[0016] When the first cage shakes greatly due to wind force, it will hit the piston rod in the rope groove, and the piston rod will move due to compression, so that the gas in the first cylinder is squeezed and transported to the second cylinder. The second cylinder has more internal gas, so the piston plate moves down, and the piston plate blocks most of the rope groove to form a rope hole. Due to the limitation of the position of the rope hole, most of the shaking cannot be transmitted, reducing the shaking degree of the first cage. This mechanism realizes linkage through gas, eliminates electrical equipment, and improves stability. At the same time, the cylinder transmission has a delay. If it is only lightly touched or hit for a short time, the gas in the cylinder will not move in a short time, reducing the possibility of false triggering.

[0017] Furthermore, it also includes a garbage collection trough, which is fixedly connected to the fixed plate, and the garbage collection trough cooperates with the flip plate. In order to ensure a large range of the shielding plate and the passage of the first cage, when the first cage stays at the lower wellhead, the flip plate will flip, making it impossible to block at this time. The mechanism adds a garbage collection trough under the fixed plate. The garbage collection trough is shorter than the flip plate and will not touch the first cage, but is just below the gap after the flip plate flips. When the flip plate flips, the garbage on the flip plate will slide from above into the garbage collection trough. At the same time, the garbage collection trough can also solve the problem of debris falling and hitting the staff when the first cage stays at the lower wellhead. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of a vertical transportation equipment. Figure 2 This is a structural diagram of a protective mechanism for replacing a tail rope device. Figure 3 The present invention is a cross-sectional view of a protective mechanism for replacing a tail rope device.

[0019] The figure marks in the specification include: 1, derrick; 2, winch; 3, second cage; 4, first cage; 5, lower wellhead; 6, second rope distribution hole; 7, tail rope; 8, rope distribution frame; 9, first rope distribution hole; 10, old rope car; 11, new rope car; 12, pulley guide roller; 13, protection mechanism; 14, flip plate; 15, fixed plate; 16, rope groove; 17, head rope; 18, second cylinder; 19, piston plate; 20, piston rod; 21, first cylinder; 22, spring. DETAILED DESCRIPTION

[0020] Basically as attached Figure 1 As shown: This solution provides a device for replacing the tail rope 7, including a derrick 1, a winch 2, a second cage 3, a first cage 4, a lower wellhead 5, a tail rope 7, a rope splitting frame 8, an old rope car 10, a new rope car 11, a pulley guide roller 12, a protection mechanism 13, a head rope 17, a second cylinder 18, a piston plate 19, a piston rod 20, a first cylinder 21 and a spring 22. The derrick 1 is arranged above the mine, the derrick 1 is fixed to the ground by fastening bolts, two fixed pulleys are arranged on the derrick 1, the winch 2 is arranged on the ground, the winch 2 is used to pull the head rope 17, and the head rope 17 passes through the two fixed pulleys and is connected to the first cage 4 and the second cage 3.

[0021] The first cage 4 and the second cage 3 are located in the mine, the first cage 4 is located on the right, the second cage 3 is located on the left, and the lower wellhead 5 is set in the middle and lower part of the mine, so that the staff can easily replace the tail rope 7. The two ends of the tail rope 7 are respectively fixedly connected to the first cage 4 and the second cage 3. When the tail rope 7 is fixedly connected to the first cage 4 and the second cage 3, the tail rope 7 will pass through the first rope splitting hole 9 and the second rope splitting hole 6 of the rope splitting frame 8. The rope splitting frame 8 is fixed at the bottom of the mine to separate the tail rope 7 and prevent the first cage 4 and the second cage 3 from colliding with each other.

[0022] A new rope trolley 11 and an old rope trolley 10 are installed at the lower wellhead 5, and pulley guide rollers 12 are provided at the top and bottom of the lower wellhead 5. The new rope trolley 11 releases the rope through the bottom pulley guide roller 12, and the old rope trolley 10 collects the rope through the top pulley guide roller 12.

[0023] like Figure 1 , Figure 2 As shown: When the tail rope 7 needs to be replaced, the staff needs to first install the protection mechanism 13, which includes a torque spring 22, a fixed plate 15 and a flip plate 14. The fixed plate 15 is fixedly connected to the lower wellhead 5, and the flip plate 14 is rotatably connected to the fixed plate 15 through the torque spring 22. Under the action of the torque spring 22, the flip plate 14 remains parallel to the fixed plate 15. In order to ensure the safety of the staff, the flip plate 14 is relatively long so that the first cage 4 will touch the flip plate 14 when passing through.

[0024] like Figure 2 , Figure 3 As shown: The flip plate 14 is provided with a rope groove 16, and when the flip plate 14 is in a horizontal state, the head rope 17 is located in the rope groove 16. In order to make the flip plate 14 larger and protect more places, the flip plate 14 needs to avoid the tail rope 7 and the head rope 17, so the rope groove 16 is provided on the flip plate 14, so that the head rope 17 and the tail rope 7 are located in the rope groove 16.

[0025] The second cylinder 18 includes a second cylinder body and a piston plate 19. The second cylinder body is connected to the rope groove 16. The piston plate 19 is a long plate. In the initial state, the piston plate 19 is located inside the second cylinder body. When the piston plate 19 moves down, the piston plate 19 will block the opening of the rope groove 16. The piston plate 19 is slidably connected to the second cylinder 18. The first cylinder 21 includes a first cylinder body, a piston rod 20 and a spring 22. The first cylinder body is connected to the rope groove 16. One end of the piston rod 20 is located in the rope groove 16 and does not contact the head rope 17 without shaking. When the head rope 17 shakes to a set amplitude, it will touch and squeeze the piston rod 20. The other end of the piston rod 20 is slidably connected to the first cylinder body. One end of the spring 22 is fixedly connected to the first cylinder body, and the other end is fixedly connected to the piston rod 20. The first cylinder body is connected to the second cylinder body.

[0026] As attached Figure 1 , Figure 2 , Figure 3 As shown: The principle of this solution is: place the new rope trolley 11 and the old rope trolley 10 at the lower wellhead 5, start the winch 2 to lower the first cage 4 to the lower wellhead 5, the flip plate 14 will touch the first cage 4, and at the same time will flip under the force of the first cage 4 to form a vertical state or a nearly vertical state. In this state, the flip plate 14 can not only allow the first cage 4 to pass, but also effectively protect the first cage 4 from shaking and hitting the staff at this time, because when the first cage 4 shakes, the flip plate 14 can withstand the impact.

[0027] The second cage 3 is raised to the upper wellhead, a new tail rope 7 is led out from the new rope car 11, and the rope head of the new tail rope 7 is passed through the pulley guide roller 12 and connected and fixed with the old tail rope 7 on one side of the second cage 3; the winch 2 is started to drive the first cage 4 to rise and the second cage 3 to descend, so that the old tail rope 7 drives the new tail rope 7 to pass through the second rope splitting hole 6 and the first rope splitting hole 9 of the rope splitting frame 8 in sequence. When the rope head of the new tail rope 7 passes through the first rope splitting hole 9 and moves to the lower wellhead 5, the new tail rope 7 is separated from the old tail rope 7, and the new tail rope 7 is fixed to the lower wellhead 5; the old tail rope 7 is broken to form a first disconnected portion rope head and a second disconnected portion rope head; the winch 2 is started to raise the first cage 4 and lower the second cage 3, and when the first cage 4 brings the second disconnected portion rope head to the lower wellhead 5, the second disconnected portion rope head is passed through the pulley guide roller 12 and connected with the guide rope of the old rope car 10. Start the winch 2 to lower the first cage 4. At this time, the tail rope 7 is cut off and the split rope frame 8 will lose its function. When the first cage 4 shakes greatly due to the wind, it will hit the piston rod 20 located in the rope groove 16. The piston rod 20 will move under the squeeze, so that the gas in the first cylinder is squeezed and transported to the second cylinder. The second cylinder has more internal gas, so the piston plate 19 moves down. The piston plate 19 blocks most of the rope groove 16 to form a rope hole. Due to the limitation of the position of the rope hole, most of the shaking cannot be transmitted, reducing the shaking degree of the first cage 4. This mechanism realizes linkage through gas, eliminates electrical equipment, and improves stability. At the same time, the cylinder transmission has a delay. If it is only lightly touched or hit for a short time, the gas in the cylinder will not move in a short time, reducing the possibility of false triggering.

[0028] At the same time, the second cage 3 rises, and the old rope trolley 10 is used to collect the old tail rope 7 on the rope head side of the second disconnected portion; when the first cage 4 is lowered to the lower wellhead 5, on the one hand, the first old rope end of the old tail rope 7 is separated from the first cage 4, and the first old rope end is connected to the rope head of the first disconnected portion, and on the other hand, the rope head of the new tail rope 7 is connected to the first cage 4. Start the winch 2 to raise the first cage 4 and lower the second cage 3, and at the same time, use the old rope trolley 10 to collect the old tail rope 7 on the rope head side of the first disconnected portion. When the first cage 4 moves to the upper wellhead and the second cage 3 moves to the lower wellhead 5, on the one hand, the second old rope end of the old tail rope 7 is separated from the second cage 3, and the old rope trolley 10 collects all the old tail rope 7, and on the other hand, the new tail rope 7 is broken and connected to the second cage 3, completing the entire replacement work.

[0029] The beneficial effects of this solution are as follows: 1. When releasing a new tail rope 7 or collecting an old tail rope 7, the tail rope 7 is released and collected by the pulley guide roller 12. The pulley guide roller 12 can play a good guiding role and reduce the friction of the tail rope 7 to prevent damage to the tail rope 7. 2. The protection mechanism 13 of this solution can protect the staff from being hit by falling objects from above when replacing the tail rope 7. 3. This solution can effectively prevent the cage from shaking through the cooperation of the first cylinder 21 and the second cylinder 18.

[0030] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A device for replacing a tail rope (7), include: New rope trolley (11): the new rope trolley (11) is fixedly connected to the lower wellhead (5), and the new tail rope (7) of the new rope trolley (11) cooperates with the first cage (4) of the vertical transportation equipment; Old rope cart (10): the old rope cart (10) is fixedly connected to the lower wellhead (5), and the guide rope of the old rope cart (10) cooperates with the old tail rope (7) of the vertical transportation equipment; It is characterized by further comprising: Pulley guide roller (12): The pulley guide roller (12) is used to recover the old tail rope (7). The pulley guide roller (12) is rotationally connected to the lower wellhead (5). Both the old tail rope (7) and the new tail rope (7) are rollingly connected to the pulley guide roller (12).

2. A device for replacing a tail rope (7) according to claim 1, It is characterized in that The invention also comprises a protection mechanism (13), the protection mechanism (13) comprising a torque spring (22), a fixed plate (15) and a flip plate (14), the fixed plate (15) being fixedly connected to the lower wellhead (5), the flip plate (14) being rotationally connected to the fixed plate (15) via the torque spring (22), and the flip plate (14) being matched with the first cage (4).

3. A device for replacing a tail rope (7) according to claim 2, It is characterized in that The flip plate (14) is provided with a rope groove (16), and the rope groove (16) cooperates with the head rope (17) of the vertical transportation equipment.

4. A device for replacing a tail rope (7) according to claim 3, It is characterized in that The invention also comprises a second cylinder (18) and a trigger mechanism, wherein the second cylinder (18) comprises a second cylinder body and a piston plate (19), the second cylinder body is connected to the rope groove (16), one end of the piston is matched with the head rope (17), and the other end is slidably connected to the second cylinder (18), the trigger mechanism is used to control the movement of the piston plate (19), the trigger mechanism is fixedly connected to the rope groove (16), and the trigger mechanism is electrically connected to the second cylinder (18).

5. A device for replacing a tail rope (7) according to claim 4, It is characterized in that The trigger mechanism is a first cylinder (21), which comprises a first cylinder body, a piston rod (20) and a spring (22). The first cylinder body is connected to the rope groove (16). One end of the piston rod (20) is matched with the head rope (17), and the other end is slidably connected to the first cylinder body. One end of the spring (22) is fixedly connected to the first cylinder body, and the other end is fixedly connected to the piston rod (20). The first cylinder body is connected to the second cylinder body.

6. A device for replacing a tail rope (7) according to claim 2, It is characterized in that It also comprises a garbage collection trough, the garbage collection trough being fixedly connected to the fixed plate (15), and the garbage collection trough being matched with the flip plate (14).

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