A traction-fixed self-locking device capable of realizing multi-level protection and its application

Abstract

A traction fixed self-locking device that can realize multi-level protection and its application, it relates to a traction device, the front end of the tractor is hinged and movably connected to the fixed bottom plate through a hinged joint, and the fixed bottom plate The lower side of the hinged connector on the surface is provided with several iron chain fasteners in an orderly interval, and grooves are arranged on the fixed bottom plate between each two iron chain fasteners. The sides are respectively provided with circular guide holes inclined to the upper side, and a column-shaped inserting rod is inserted into the circular guide holes; through the present invention, not only the traction and tension operation of the stay rope iron chain can be realized, but also the After the tension of the guy rope and iron chain is stretched, it is not necessary for the tractor to continue to limit the chain, so that the multi-section fixed locking of the guy rope and iron chain can be realized, which realizes the effect of multiple protection and greatly reduces the amount of traction. wear and tear consumption.

Description

technical field [0001] The invention relates to a traction device, in particular to a traction fixed self-locking device capable of realizing multi-level protection and its application. Background technique [0002] It is known that during the construction of the derrick, in order to ensure the stability of the derrick, it is usually necessary to fix the derrick guy rope on the derrick, and in order to enable the guy rope to effectively pull and limit the derrick, the guy rope needs to be tightened and straightened. The traditional The method is to use turnbuckle screws to realize the tightening of the stay ropes. However, due to the short adjustment distance and slow adjustment speed of the turnbuckle screws, it takes about 20 minutes for each stay rope to be adjusted by three people. The radial torque generated when the turnbuckle adjusts the stay rope will cause the bolts of the threaded buckle to loosen, which increases the safety hazard. At present, a traction fixed sel...

AI Technical Summary

Problems solved by technology

[0002] It is known that during the construction of the derrick, in order to ensure the stability of the derrick, it is usually necessary to fix the derrick guy rope on the derrick, and in order to enable the guy rope to effectively pull and limit the derrick, the guy rope needs to be tightened and straightened. The traditional The method is to use turnbuckle screws to realize the tightening of the stay ropes. However, due to the short adjustment distance and slow adjustment speed of the turnbuckle screws, it takes about 20 minutes for each stay rope to be adjusted by three people. The radial torque generated when the turnbuckle adjusts the stay rope will cause the bolts of the threaded buckle to loosen, which increases the safety hazard. At present, a traction fixed self-locking device is disclosed in the prior art, which is mainly composed of a booster rod (1) , chain guide tank (4), push clip (2), inert clip (3) and locking slot, which are connected as a whole through high-strength pin shafts, and are used together with lifting ring iron chains. The working principle is to use levers The principle is to decompose the external force alternately, and push the iron chain to reciprocate in the chain guide tank (4), so as to achieve the purpose of moving the traction object and tightening the tension. This traction fixed self-locking device is small in size, light in weight, and easy to disassemble and assemble. , simple operation, high safety factor, and can be widely used in different industries, especially for the necessary device for adjusting and fixing the tension of the derrick guyline in the drilling operation. However, there are still the following problems in the use of the traction and fixing self-locking device :

[0003] 1. When using the traction self-locking device, it is necessary to insert the iron chain inside the traction fixed self-locking device before fixing both ends of the iron chain, and then fix and connect the two ends of the iron chain to the derrick and ground anchor respectively. Use the traction fixed self-locking device to tighten the iron chain, which leads to the accumulation of more iron chains at the locking slot in the traction fixed self-locking device, and these accumulated iron chains are completely limited by the locking slot Stuck, if the locking slot is broken or loosened, it will cause the tensioned iron chain to suddenly loosen, and in serious cases, it will also cause the derrick to tilt

[0004] 2. After traction and tightening of the tension rope chain, the tension rope chain and the ground anchor will be connected in series through the traction fixed self-locking device, which will cause the traction fixed self-locking device to be in a stressed state all the time, which makes the The clips inside the traction fixed self-locking device are always subjected to the pulling force transmitted by the iron chain, which greatly increases the wear and tear of the push clip (2) and the inert clip (3), and it is easy to cause the push clip (2) and the inertia clip (3) The end is damaged, so the traction fixed self-locking device cannot be used normally

[0005] 3. Since the stay rope chain and the ground anchor will be connected in series through the traction fixed self-locking device, when the traction fixed self-locking device suddenly becomes slack and damaged during the long-term stress process, the tensioned stay rope chain suddenly If the slack occurs, the derrick will suddenly exert a certain pulling force on the guy rope chain, and this part of the pulling force will be directly transmitted to the ground anchor through the loose guy rope chain, so that the ground anchor will be suddenly subjected to a large pulling force, which is It is easy to cause the ground anchor to loosen

[0006] 4. Fix the tensioned stay rope iron chain of the self-locking device by traction. After the traction, the redundant iron chain is between the locking card slot and the chain guide groove body (4). During the iron chain, the staff cannot manipulate the tractor at will to loosen the tightened iron chain. It is necessary to hold the booster rod (1) firmly at all times to complete the relaxation of the rope and iron chain bit by bit. This requires the staff to manually tighten the chain The control requires the staff to consume a lot of manpower. If there is a loss of force and the excess iron chain of the control booster rod (1) will slide out directly along the chain guide groove (4), this will cause one side of the derrick to suddenly lose tension. The pulling force of the ropes and chains on the derrick is likely to be tilted due to the sudden relaxation of the guy rope at one end of the derrick, especially after dismantling multiple guy ropes and chains, the tension of the derrick on the remaining guy ropes and chains will be greatly strengthened. Unable to control, it is easy to cause the derrick to tilt and collapse

[0007] 5. After the traction fixed self-locking device is connected in series between the ground anchor and the derrick, the traction fixed self-locking device must limit the tightened iron chain after tightening the guy rope chain, which is The traction fixed self-locking device cannot be disassembled, and each guyline chain needs to be installed with a traction fixed self-locking device, resulting in a waste of resources

[0008] 6. When the traction fixed self-locking device is damaged, when the traction fixed self-locking device is repaired and replaced, the tensioned rope and iron chain will inevitably loosen, which poses a certain safety hazard, and it will still be damaged after repair and replacement. It is very inconvenient to perform traction and tightening operations on the stay rope iron chain again

[0009] 7. When the traction fixed self-locking device is used, it is necessary to fix the end of the iron chain with the ground anchor first. Since the ground anchor and the traction fixed self-locking device are two separate parts, not only the installation of the ground anchor is very inconvenient, but also too simple The ground anchor structure cannot achieve ideal stability, and it is easy to forget to install the traction fixing self-locking device after the iron chain is fixed with the ground anchor, which brings great inconvenience to the subsequent traction tensioning operation

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