A first rope hoist system for mine shaft hoist container installation

Abstract

The utility model discloses a first rope sling system for mine hoist container installation relates to mine construction construction technical field, this system includes two sets of first rope sling of same structure and can alternate use, and each set of sling includes the sling body that is constituted by two high -strength strip shape steel, and the long strip shape wire hole is left between it and is used for the first rope to wear, and the both ends of sling body are equipped with the lifting ear connection steady car hoisting part, and the top is equipped with a plurality of wedge block formula rope clamp for locking each first rope, and at least two layers of safety cable are installed on the top of rope clamp to prevent slipping, through frame type sling structure and multi -rope synchronous locking mechanism, the tension balance control of multiple first ropes has been realized, and the stability in the process of hoist container lowering has been effectively improved, and swing and rotation phenomenon have been reduced significantly, and construction safety and efficiency have been improved, and construction period has been shortened.

Description

Technical Field

[0001] This utility model relates to the field of mine construction technology, specifically a head rope lifting system for installing mine hoisting containers. Background Technology

[0002] In mine construction, the installation of hoisting containers using rope-wound cables is a critical and complex process. Traditional methods often employ single-point lifting or simple locking devices, making it difficult to achieve balanced tension control across multiple lead ropes, which can lead to twisting and swaying of the hoisting container. Furthermore, the lowering process requires multiple stops to re-secure the ropes, resulting in a long construction period and increased safety risks due to repeated operations. Therefore, this paper proposes a lead rope lifting system for installing mine hoisting containers to prevent swaying and rotation during lowering. Utility Model Content

[0003] The present invention aims to solve the above problems, thereby providing a head rope lifting system for the installation of mine hoisting containers to prevent the hoisting containers from swinging or rotating during the lowering process.

[0004] The technical solution adopted by this utility model to solve the aforementioned problem is: A head rope lifting system for installing mine hoisting containers includes a first set of self-made head rope lifting devices and a second set of self-made head rope lifting devices with identical structures that can be used alternately under load; it also includes a stabilizing car that provides power to the two sets of self-made head rope lifting devices, and the stabilizing car is alternately connected to the two sets of self-made head rope lifting devices through wire ropes and pulley blocks. Each set of the aforementioned first rope lifting device includes a lifting device body, which is a frame structure composed of two high-strength steel bars. A long strip-shaped cable passage hole is left between the two high-strength steel bars. Lifting lugs are provided at the upper ends of both ends of the lifting device body. The lifting lugs are connected to the stable car through steel wire ropes and pulley blocks. Multiple rope clamps are provided on the upper part of the lifting device body. The rope holes of the rope clamps are opposite to the cable passage holes and are used to lock multiple first ropes respectively. A safety cable is provided above the rope clamps to prevent the first ropes from slipping off the rope clamps. The bottom of the safety cable abuts against the rope clamps and is locked to the first rope that is inserted into the rope clamps.

[0005] Furthermore, the rope clamp is a wedge-type rope clamp.

[0006] Furthermore, the safety cable has at least two layers. The safety cable includes a pair of clips with bolt holes in opposite positions on the two clips and is fastened with bolts. The two clips of the bottom layer of the safety cable abut against the tops of the two wedges of the wedge-type cable clamp.

[0007] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are: This lifting sling utilizes a frame structure and elongated cable guide holes for the lead rope to pass through, and connects to a stabilizing vehicle at both ends for auxiliary lifting. Multiple rope clamps at the top secure multiple lead ropes, while safety cable clamps prevent slippage between the lead ropes and the clamps, significantly improving construction efficiency and operational safety. Its structural design facilitates simultaneous locking and tension control of multiple lead ropes during the rope-winding and container-hanging process, thereby improving the stability of the container during lowering, reducing swaying or rotational instability, and lowering construction safety risks. Furthermore, the relatively simplified structure of this lifting sling helps shorten the construction cycle. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram illustrating the usage state of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the installation structure of an embodiment of the present utility model; The following are marked in the diagram: 1. Head rope, 2. Lifting device body, 3. Rope clamp, 4. Safety cable clamp, 5. Lifting container, 6. Stable lifting unit, 7. Steel beam, 21. Lifting lug, 31. Wedge block, 61. Pulley block, 62. Wire rope, 63. Stable car. Detailed Implementation

[0009] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0010] See Figures 1-3 A head rope lifting system for installing mine hoisting containers includes a first set of self-made head rope lifting devices and a second set of self-made head rope lifting devices with identical structures that can be used alternately under load; it also includes a stabilizing car 63 that provides power to the two sets of self-made head rope lifting devices, the stabilizing car 63 being alternately connected to the two sets of self-made head rope lifting devices via a steel wire rope 62 and a pulley block 61. Each set of the aforementioned first rope lifting device includes a lifting device body 2, which is a frame structure composed of two high-strength steel bars. A long strip-shaped cable passage hole is left between the two high-strength steel bars. Lifting lugs 21 are provided on the upper part of both ends of the lifting device body 2. A car stabilizing lifting part 6 (including a pulley block 61, a wire rope 62, and a car stabilizing part 63) is connected to the lifting lugs 21. Multiple rope clamps 3 are provided on the upper part of the lifting device body 2. The rope hole of the rope clamp 3 is opposite to the cable passage hole and is used to lock multiple first ropes 1 respectively. A safety cable 4 is provided on the upper part of the rope clamp 3 to prevent the first rope 1 from slipping off the rope clamp 3. The bottom of the safety cable 4 abuts against the rope clamp 3 and is locked to the first rope 1 that is inserted into the rope clamp 3.

[0011] The rope clamp 3 is a wedge-type rope clamp.

[0012] The safety cable 4 has at least two layers. The safety cable 4 includes a pair of clips with bolt holes that are positioned opposite each other and are fastened with bolts. The two clips of the bottom layer of the safety cable 4 abut against the tops of the two wedges 31 of the wedge-type cable clamp.

[0013] A specific method of using this utility model: S1. Two I63b I-beams are arranged on the guide wheel floor of the well tower to suspend two sets of 50t fixed pulleys and a 20t single pulley for crossing the river between the two sets of 50t fixed pulleys.

[0014] S2. Install two sets of 20t guide pulleys at the temporary sheave platform on the unloading floor of the well tower.

[0015] S3. Install the stabilizing wire rope 62 inside the well tower. First, wind one end of the wire rope 62 through the guide wheel of the unloading floor of the well tower to the No. 1 16t stabilizing car 63 on the east side of the well tower. Stop winding the rope when the remaining wire rope 62 meets the requirements of the pulley block 61 for rope threading. Manually unload the remaining wire rope 62.

[0016] S4. The other end of the traction wire rope 62 completes the rope threading work of 2 sets of fixed pulleys and the single pulley between them. Finally, the rope end is wound onto the 20t single pulley corresponding to the unloading floor of the well tower and onto the 2# 16t stable car 63 on the east side of the well tower.

[0017] S5. Using an 11.4kW dispatching winch, suspend the two 50t fixed pulleys, the river crossing single pulley, and the two sets of movable pulleys above the head rope hoist onto the corresponding suspension wire ropes 62 in sequence.

[0018] S6. Use a truck crane in conjunction with the overhead crane in the shaft tower to lift the No. 1 lifting container 5 into the shaft house. Then start the No. 1 and No. 2 stabilizing cars 63 and use two sets of moving pulleys in conjunction with the overhead crane to lift the No. 1 lifting container 5 into the shaft. Lower the two sets of moving pulleys and stop when the bottom of the No. 1 lifting container 5 is 2m higher than the shaft opening.

[0019] S7. Use the No. 3 stabilizer 63 to lift the two steel beams 7 to the bottom of the No. 1 lifting container 5 in sequence and place them on the wellhead for wading. After the I-beams are in place, loosen the two sets of moving pulleys until the No. 1 lifting container 5 is completely placed on the steel beams 7. Remove the steel wire ropes connecting the two sets of moving pulleys to the top of the container.

[0020] S8. Six head ropes 1 of the hoisting container 5 are erected outside the north window of the well tower. Six 20t self-made single pulleys are arranged at the wellhead, with their relative positions consistent with the head ropes 1. Using an 11.4kW dispatching winch, the six head ropes 1 are pulled through the corresponding self-made single pulleys, then through the guide sheaves on the guide wheel floor of the well tower and the rope grooves corresponding to the top hoist drum, and finally pulled to the ground at the wellhead.

[0021] S9. On the ground, use an 11.4kW dispatch winch to install the six head rope lifting devices of the lifting container 5 in sequence. After the lifting devices are installed, extend all the tension adjusting cylinders of the six head rope lifting devices to the maximum position. These cylinders are used to fine-tune and balance the tension of each head rope 1 during the lifting process.

[0022] S10. Set up a work platform on the unloading floor of the well tower, install the first set of self-made head rope lifting equipment, fix the 6 head ropes 1 of the lifting container 5 to the first set of self-made head rope lifting equipment through the rope clamp 3, and use shackles to connect the two sets of pulley blocks 61 to the self-made head rope lifting equipment as one unit.

[0023] S11. After the above work is completed, pressurize the six first rope lifting devices at the wellhead simultaneously. Stop the pressurization operation when the cylinder has half of its stroke remaining. Close the main valve of the oil pipe of the six first rope lifting devices, remove the pressurization pump and oil pipe, and install the safety cable 4 above the rope clamp 3 of the first set of self-made first rope lifting devices as a safety measure.

[0024] S12. Start the No. 1 and No. 2 stabilizing trolleys 63 to lift the No. 1 lifting container 5 as a whole. Stop when the bottom of the No. 1 lifting container 5 is 1m higher than the wellhead wading beam. Use the No. 3 stabilizing trolley 63 to remove the two steel beams 7 and place them in an area that will not affect the lowering of the lifting container 5.

[0025] S3. Start the No. 1 and No. 2 stabilizers 63 to lower the No. 1 lifting container 5. Stop lowering when the first set of self-made head rope lifting tools is 2m higher than the wellhead. Use the No. 3 stabilizer 63 to place the two steel beams 7 on the wellhead.

[0026] S14. Start the No. 1 and No. 2 stabilizing vehicles 63 to lower the No. 1 lifting container 5 until the first set of self-made head rope lifting tools lands on the two steel beams 7 at the wellhead. Use scaffolding boards to set up the working platform on the two steel beams 7 at the wellhead and remove the connection shackle between the pulley block 61 and the first set of self-made head rope lifting tools.

[0027] S15. Continue to install the second set of self-made head rope lifting devices on the unloading floor of the well tower. After installation, start the No. 1 and No. 2 stabilizer 63 to lift the No. 1 lifting container 5. Stop lifting after the rope clamp 3 on the first set of self-made head rope lifting devices at the wellhead is no longer under force. Remove the safety cable 4 and rope clamp 3 of the first set of self-made head rope lifting devices.

[0028] S16. Start the No. 1 and No. 2 stabilizers 63 to continue lowering the No. 1 hoisting container 5. Stop lowering when the lower edge of the second set of self-made head rope lifting devices is 1m away from the upper edge of the first set of self-made head rope lifting devices. At this time, reinstall and lock the rope clamp 3 of the first set of self-made head rope lifting devices onto the head rope 1. Continue lowering the No. 1 hoisting container 5 until the first set of self-made head rope lifting devices once again bears the full weight of the hoisting container 5. Then, install the safety cable 4 above the rope clamp 3 of the first set of self-made head rope lifting devices. After confirming safety, remove the safety cable 4 and rope clamp 3 from the second set of self-made head rope lifting devices and transport them to the unloading floor of the well tower for future use.

[0029] S17. Start the No. 1 and No. 2 stabilizers 63 to lift the second set of self-made head rope hoisting tools to the unloading floor of the well tower, and follow the construction methods of serial number 14 and serial number 15 until the No. 1 lifting container 5 is lowered into place.

[0030] S18. During the descent, a designated person shall mark the 6 head ropes 1 and count the descent amount of the marks and the cumulative descent amount during each descent. When the difference between the maximum and minimum descent amount of the 6 head ropes 1 is close to half of the cylinder stroke, adjustments shall be made in a timely manner.

[0031] S19. Move the entire floor load-bearing beam of the well tower guide wheel to the top of the No. 2 lifting container 5. Hoist the No. 2 lifting container 5 into the well shaft in the same way as hoisting the No. 1 lifting container 5. Cut the 6 first ropes 1 according to the design position. Use an 11.4kW dispatching winch to install the first rope lifting device of the No. 2 lifting container 5 in sequence.

[0032] Throughout the process, two sets of self-made head rope lifting devices were used alternately, with each lowering being 21.5m. This significantly improved construction efficiency and operational safety, and effectively prevented the lifting container 5 from swinging or rotating during the lowering process.

[0033] This lifting sling utilizes a frame structure and elongated cable guide holes for the lead rope to pass through, and connects to the stabilizing lifting unit at both ends with lifting lugs to assist in lifting. Multiple rope clamps at the top secure multiple lead ropes, and safety cable clamps prevent slippage between the lead ropes and the clamps, significantly improving construction efficiency and operational safety. Its structural design facilitates simultaneous locking and tension control of multiple lead ropes during the rope-winding and container-hanging process, thereby improving the stability of the container during descent, reducing swaying or rotational instability, and lowering construction safety risks. Furthermore, the relatively simplified structure of this lifting sling helps shorten the construction cycle.

[0034] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A head rope lifting system for installing mine hoisting containers, characterized in that: It includes a first set of self-made head rope lifting devices and a second set of self-made head rope lifting devices with the same structure and can be used alternately to bear force; it also includes a stabilizing car that provides power to the two sets of self-made head rope lifting devices, and the stabilizing car is alternately connected to the two sets of self-made head rope lifting devices through steel wire ropes and pulley blocks. Each set of the aforementioned first rope lifting device includes a lifting device body, which is a frame structure composed of two high-strength steel bars. A long strip-shaped cable passage hole is left between the two high-strength steel bars. Lifting lugs are provided at the upper ends of both ends of the lifting device body. The lifting lugs are connected to the stable car through steel wire ropes and pulley blocks. Multiple rope clamps are provided on the upper part of the lifting device body. The rope holes of the rope clamps are opposite to the cable passage holes and are used to lock multiple first ropes respectively. A safety cable is provided above the rope clamps to prevent the first ropes from slipping off the rope clamps. The bottom of the safety cable abuts against the rope clamps and is locked to the first rope that is inserted into the rope clamps.

2. The head rope lifting system for installing mine hoisting containers according to claim 1, characterized in that: The rope clamp is a wedge-type rope clamp.

3. The head rope lifting system for installing mine hoisting containers according to claim 2, characterized in that: The safety cable has at least two layers. The safety cable includes a pair of clips with bolt holes that are positioned opposite each other and are fastened with bolts. The two clips of the bottom layer of the safety cable abut against the tops of the two wedges of the wedge-type cable clamp.

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