Single replacement method of double steel wire rope with balance beam

Abstract

The present application relates to hoisting steel wire rope replacement technical field, specifically disclose a kind of single one replacement method of double steel wire rope with balance beam, the rope head of two steel wire ropes at the both ends of balance beam is connected, and is hung to the movable pulley of hanging device, so that two old steel wire ropes are connected to become a steel wire rope, and the replacement of two steel wire ropes can be completed by a steel wire rope through preparation, connection one, connection two, winding one, cutting, winding two, fixing steps;The single one replacement method of double steel wire rope with balance beam designed in the present application completes the replacement of two steel wire ropes by a steel wire rope, short time is required, saves strength, reduces workload, greatly reduces the operation intensity, and the steel wire rope replacement speed is fast.

Description

Technical Field

[0001] This invention relates to the field of hoisting wire rope replacement technology, specifically to a method for replacing a single wire rope of a double wire rope with a balance beam in a single operation. Background Technology

[0002] The crane wire rope with the balance beam 1 consists of two independent wire ropes. The existing crane wire rope usage is as follows: Figure 1 As shown, the wire rope winding method typically involves the first wire rope head being fixed to the drum 6 by the first pressure plate 4. A portion of the wire rope is wound around the drum 6, then passes sequentially through the first movable pulley of the movable pulley group 8 (located on the same side as the first pressure plate 4), a fixed pulley of the fixed pulley group 7 (located on the same side), and the second movable pulley of the movable pulley group 8. The other end of this wire rope is then passed through pin 2 and secured to the balance beam with a wire rope clamp. The second wire rope winding method is symmetrical to the first. The second wire rope head is fixed to the drum 6 by the second pressure plate 5. A portion of the wire rope is wound around the drum 6, then passes sequentially through the first movable pulley of the movable pulley group 8 (located on the same side as the second pressure plate 5), a fixed pulley of the fixed pulley group 7 (located on the same side), and the second movable pulley of the movable pulley group 8. The other end of this wire rope is then passed through pin 3 and secured to the balance beam with a wire rope clamp. Currently, the main characteristics of wire rope replacement methods include: preparation: two coils of wire rope and two rope release devices. If only one coil of wire rope is available, it needs to be manually released and cut off. Cutting: all the old wire rope wound on drum 6 is released, and the two old wire ropes simultaneously pull the two new wire ropes. This replacement method requires two wire ropes of equal length, requires pulling the new wire rope head to the balance beam 1 twice, and requires two people, each responsible for the speed of one rope release device, during the pulling process. This increases the workload, resulting in low work efficiency and requiring a large number of maintenance workers. Therefore, there is an urgent need to design a single-wire replacement method with a balance beam and double wire ropes to solve the problems of wasted manpower and low work efficiency in the current two-wire rope replacement method. Summary of the Invention

[0003] To address the problems existing in the prior art, the purpose of this invention is to provide a method for replacing a single wire rope with a double steel wire rope and a balance beam in a single operation.

[0004] The technical solution adopted by this invention to solve its technical problem is: a method for single-strand replacement of a double wire rope with a balance beam, comprising the following steps:

[0005] 1) Preparation: Prepare a new coil of steel wire rope;

[0006] 2) Connection 1: Connect the ends of the two old steel wire ropes at both ends of the balance beam. The two steel wire ropes are connected to become one steel wire rope, which is then hung on the hanging device. The hanging device is then hung on the hoist in the factory building on site.

[0007] 3) Connection 2: Welding the ends of the new wire rope and the old wire rope;

[0008] 4) Winding 1: The hoisting drum is used, the old wire rope pulls the new wire rope, the other end of the old wire rope is coiled onto the rope coiler, and the new wire rope is wound onto the drum.

[0009] 5) Cutting: When the joint between the new wire rope and the old wire rope leaves the drum, cut the joint and fix the cut end of the new wire rope to the drum with the second pressure plate.

[0010] 6) Winding up two: Continue to raise the drum. When the number of turns of wire rope wound on the drum reaches X, stop raising, release the same length of wire rope as the second pressure plate wire rope that has not entered the moving pulley block from the new wire rope coil, cut it to form a rope end, and lower the drum until all the wire rope on the drum has fallen.

[0011] 7) Fixing: Pull the other end of the unfixed wire rope onto the crane and fix it with the first pressure plate. Cut the wire rope at the center of the entire wire rope, with the center of the wire rope at the mounting device. Pass the two cut ends through pin one and pin two respectively and fix them to both ends of the balance beam with wire rope clamps. Raise the drum until the number of drum turns is X, and install the drum limit switch.

[0012] Specifically, after preparing the new wire rope in step 1), a rope release device needs to be prepared and placed on site. The moving pulley of the wire rope winding system is placed in the work area, the number of turns of the wire rope on the drum is counted and recorded as X turns, and the limit switch on the drum is removed.

[0013] Specifically, the mounting device in step 2) includes a movable pulley, a hook, a flap, flap bolts, and an anti-detachment baffle. The movable pulley is rotatably installed in the pulley box, and the hook is installed on the upper part of the pulley box. The upper side plate of the pulley box is rotatably connected to the flap via a pin. The flap rotates to open the pulley box. The upper part of the flap is provided with bolt holes. When the flap is closed, the flap bolts are inserted into the bolt holes. The flap bolts are fixed to the mounting sleeve of the hook. Nuts are threaded onto the flap bolts, and an anti-detachment baffle is installed on the hook.

[0014] Specifically, the flap is flipped down to open the pulley box, one old steel wire rope is connected to another old steel wire rope, the connected old steel wire rope is hung on the movable pulley, then the flap is closed and fixed with a nut, and the hook is hung on the hoist in the factory building.

[0015] Specifically, in step 3), before welding the ends of the new and old wire ropes, the first and second pressure plates on both sides of the drum are removed, one end of the old wire rope is dropped down, and the other end of the old wire rope is also lowered through the guardrail.

[0016] Specifically, in step 4), the other end of the old wire rope is coiled onto the rope coiler, the old wire rope passes through the movable pulley block, the fixed pulley block and the movable pulley of the hook, and the new wire rope is wound onto the drum.

[0017] The present invention has the following beneficial effects:

[0018] The single-rod replacement method for double wire ropes with a balance beam designed in this invention completes the replacement of two wire ropes with a single wire rope. This method is quick, saves effort, reduces workload, greatly reduces work intensity, and allows for fast wire rope replacement. Attached Figure Description

[0019] Figure 1 This is a structural diagram showing the use of crane wire ropes.

[0020] Figure 2 This is a structural schematic diagram of an embodiment of a single-strand replacement method with double steel wire ropes and a balance beam.

[0021] Figure 3 This is a schematic diagram of the mounting device with the flap closed.

[0022] Figure 4 This is a schematic diagram of the mounting device with the flap open.

[0023] Figure 5 This is a simplified side view of the mounting device.

[0024] In the diagram: 1-Balance beam; 2-Pin one; 3-Pin two; 4-First pressure plate; 5-Second pressure plate; 6-Drum; 7-Fixed pulley block; 8-Moving pulley block; 9-Loading device; 9.1-Moving pulley; 9.2-Hook; 9.3-Flip plate; 9.4-Flip plate bolt; 9.5-Anti-detachment baffle. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] like Figure 2-5 As shown, a method for replacing a single wire rope with a balance beam and two old wire ropes involves connecting the ends of the two old wire ropes at both ends of the balance beam 1 and hanging them on the movable pulley 9.1 of the mounting device 9. This connects the two old wire ropes into a single wire rope. Through the steps of preparation, connection one, connection two, winding one, cutting, winding two, and fixing, the replacement of two wire ropes can be completed using only one wire rope.

[0027] The replacement method includes the following steps:

[0028] Preparation: Prepare a new spool of wire rope and place a rope release device on site. Place the movable pulley block 8 of the wire rope winding system in the work area. Count the number of turns of wire rope on the drum 6 and record it as X turns. Remove the limit switch on the drum 6 (not shown in the figure).

[0029] Connection 1: Connect the ends of the two old steel wire ropes at both ends of the balance beam 1 and hang them on the movable pulley of the hanging device 9. In this way, the two old steel wire ropes are connected into one steel wire rope, and the hanging device 9 is hung on the hoist in the factory building.

[0030] Connection 2: Remove the first pressure plate 4 and the second pressure plate 5 on both sides of the drum 6, drop down one end of the old wire rope, weld the end of the new wire rope to the end of the old wire rope, and lower the other end of the old wire rope through the guardrail.

[0031] Winding 1: Lifting drum 6, old wire rope pulls new wire rope, the other end of old wire rope is coiled onto the rope coiler, and through the moving pulley block 8, the fixed pulley block 7, and the hanging device 9, the new wire rope is wound onto drum 6.

[0032] Cutting: When the new wire rope and the old wire rope joint leave the drum 6, cut the joint and fix the cut end of the new wire rope to the drum 6 with the second pressure plate 5.

[0033] Second winding: Continue lifting drum 6 until the number of turns of wire rope wound on drum 6 reaches X, then stop lifting. Release the length of wire rope from the new wire rope coil that is the same length as the wire rope on the second pressure plate 5 that has not entered the moving pulley block 8, and cut it to form a rope end. Lower drum 6 until all the wire rope on drum 6 has fallen.

[0034] Fixing: Pull the other end of the unfixed wire rope onto the crane and fix it with the first pressure plate 4. Cut the wire rope at the center of the entire wire rope, with the center of the wire rope at the mounting device 9. Fix the two cut ends to the two ends of the balance beam 1 with wire rope clips. Raise the drum 6 until the number of turns of wire rope on the drum 6 is X. Install the limit switch on the drum 6.

[0035] like Figure 3-5As shown, the mounting device 9 includes a movable pulley 9.1, a hook 9.2, a flap 9.3, a flap bolt 9.4, and an anti-detachment baffle 9.5. The movable pulley 9.1 is rotatably installed inside the pulley box. The hook 9.2 is installed on the upper part of the pulley box. The upper side plate of the pulley box is rotatably connected to the flap 9.3 via a pin. The flap 9.3 rotates to open the pulley box. The upper part of the flap 9.3 has bolt holes. When the flap 9.3 is closed, the flap bolt 9.4 is inserted into the bolt holes. The flap bolt 9.4 is fixed to the mounting sleeve of the hook 9.2. A nut is threaded onto the flap bolt 9.4. The anti-detachment baffle 9.5 is installed on the hook 9.2. The flap 9.3 is flipped down to open the pulley box. One old wire rope is connected to another old wire rope. The connected old wire rope is hung on the movable pulley 9.1. Then the flap 9.3 is closed and fixed with the nut. The hook 9.2 is hung on the hoist in the factory building.

[0036] A single-rod replacement method with a balance beam and double wire ropes allows for the replacement of two wire ropes using only one rope. Only one coil of wire rope needs to be prepared and transported to the site. During the process of pulling the new wire rope, only one person is needed to control the speed of one rope release device, saving effort, reducing workload, greatly reducing work intensity, and enabling fast wire rope replacement.

[0037] This invention is not limited to the above-described embodiments. Anyone should know that any structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention.

[0038] The technologies, shapes, and structures not described in detail in this invention are all known technologies.

Claims

1. A method for replacing a single strand of a double wire rope with a balance beam in a single operation, characterized in that, Includes the following steps: 1) Preparation: Prepare a new coil of steel wire rope; 2) Connection 1: Connect the ends of the two old steel wire ropes at both ends of the balance beam, making them into one steel wire rope. Hang it on the hanging device, which is then attached to the hoist in the on-site factory building. The hanging device includes a movable pulley, a hook, a flap, flap bolts, and an anti-detachment baffle. The movable pulley is rotatably installed in the pulley box, and the hook is installed on the upper part of the pulley box. The upper side plate of the pulley box is rotatably connected to the flap via a pin. The flap rotates to open the pulley box. The upper part of the flap has bolt holes. When the flap is closed, the flap bolts are inserted into the bolt holes and fixed to the mounting sleeve of the hook. A nut is threaded onto the flap bolt, and an anti-detachment baffle is installed on the hook. The flap is flipped down to open the pulley box, connecting one old steel wire rope to the other. The connected old steel wire rope is hung on the movable pulley. Then, the flap is closed and fixed with a nut, and the hook is attached to the hoist in the on-site factory building. 3) Connection 2: Welding the ends of the new wire rope and the old wire rope; 4) Winding 1: Lifting drum, old wire rope pulls new wire rope, the other end of old wire rope is coiled onto the rope coiler until the new wire rope is wound onto the drum; 5) Cutting: When the joint of the new wire rope and the old wire rope leaves the drum, cut the joint and fix the cut end of the new wire rope to the drum with the second pressure plate. 6) Winding up two: Continue to raise the drum. When the number of turns of wire rope wound on the drum is X, stop raising, release the same length of wire rope from the new wire rope coil as the second pressure plate wire rope that has not entered the moving pulley block, and cut it to form a rope end. Lower the drum until all the wire rope on the drum has fallen. 7) Fixing: Pull the other end of the unfixed wire rope onto the crane and fix it with the first pressure plate. Cut the wire rope at the center of the entire wire rope, with the center of the wire rope at the mounting device. Pass the two cut ends through pin one and pin two respectively and fix them to both ends of the balance beam with wire rope clamps. Raise the drum until the number of drum turns is X, and install the drum limit switch.

2. The method for single-strand replacement of double wire ropes with a balance beam according to claim 1, characterized in that, After preparing the new wire rope in step 1), a rope release device needs to be prepared and placed on site. Place the moving pulley of the wire rope winding system in the work area, count the number of turns of wire rope on the drum and record it as X turns, and remove the limit switch on the drum.

3. The method for single-strand replacement of double wire ropes with a balance beam according to claim 1, characterized in that, Before welding the ends of the new and old wire ropes in step 3), remove the first and second pressure plates on both sides of the drum, throw down one end of the old wire rope, and lower the other end of the old wire rope through the guardrail.

4. The method for single-strand replacement of double wire ropes with a balance beam according to claim 1, characterized in that, In step 4), the other end of the old wire rope is coiled onto the rope coiler. The old wire rope passes through the movable pulley block, the fixed pulley block, and the movable pulley of the hook until the new wire rope is wound onto the drum.

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