Steel-rope guide hydraulic stretching device

Abstract

This invention is one kind of steel wire pot hydraulic pressure stretching device, suitablly uses in mine shaft steel wire pot tighten. Symmetrically puts on the wrap about steel wire pot to establish two directions opposite pair of voussoir fastening and the foundation connection, and innately is situated on the support, front the double voussoir fastening big forehead is equipped with guards against delivers line anchor; Upside is located in the pair of voussoir fastening release to be equipped with the motion pair of voussoir fastening cylinder, the cylinder fixes through the flange type plate in bolsters on. Its structure simple, is easy to process, disassemblage convenient, performance reliable, the effect is good, has the widespread usability.

Description

technical field [0001] The invention relates to a hydraulic tensioning device for a steel wire rope tank, which is especially suitable for tensioning the steel wire rope tank for hoisting a mine shaft. Background technique [0002] At present, the tanks used in my country's coal mines mainly include steel wire rope tanks and rigid composite tanks. Compared with rigid composite tanks, steel wire rope tanks have many advantages, so steel wire rope tanks are more and more widely used. The tensioning devices for steel wire rope tank road mainly include hammer tensioning method and hydraulic screw tensioning method, and other well spring and manual screw tensioning types have basically been eliminated. The heavy hammer tensioning method is the most common. Its advantage is that the tensioning force is stable, but there are many disadvantages. In addition to the need for a large amount of cast iron and the need to excavate a deep well bottom water pit, it is necessary to equip a m...

AI Technical Summary

Problems solved by technology

The heavy hammer tensioning method is the most common. Its advantage is that the tensioning force is stable, but there are many disadvantages. In addition to the need for a large amount of cast iron and the need to excavate a deep well bottom water pit, it is necessary to equip a multi-layer metal structure, which increases the Increased installation time and labor intensity, making maintenance, inspection and observation difficult

In addition, due to leakage and vehicle movement in the process of loading, unloading and lifting materials, sundries are accumulated in the water nest, which silts up the tensioning device of the weight hammer, reduces the tension at the end of the rope, and reduces the rigidity coefficient of the rope tank. , and will cause the displacement of the tank road rope, which has brought a serious threat to the safety of lifting. When the heavy hammer is set on the derrick, the load on the derrick will increase and cause congestion between the derricks.

The hydraulic screw tensioning method overcomes many disadvantages of the heavy hammer tensioning device, but there are many problems in the process of manufacturing, installation and use: the shell and the wedge are required to be processed in pairs during the manufacturing process, and in the actual processing process Difficult to do, there is sliding friction between the wedge and the shell and between the wedge and the wire rope, and the difference in friction coefficient is very small. There are many reasons such as insufficient depth of the block into the fixing device, etc., which may easily cause the steel wire rope to slip between the double wedges and cause the tank road rope to fall.

In addition, the hydraulic cylinder is a hollow rod type, and the manufacturing cost is high. When installing, the steel wire rope must be penetrated from one end, and the fixing device is inconvenient to disassemble when the rope is channeled.

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