Replacement method of sky wheel lining block of multi-rope friction hoist

Abstract

The invention relates to a method for replacing the lining block of a multi-rope friction hoist. The method adopts the steps of pressing the first rope, turning the old lining block destructively, removing the old lining block and installing a new lining block to replace the lining block of the sky wheel. The invention simultaneously disassembles and installs the lining blocks of two sky wheels, and shortens the maintenance time of the sky wheel lining blocks as a whole. Use 16-hole plate clamps to lock the rope and cooperate with the expansion and contraction of the rope adjustment cylinder to loosen the head rope and leave the sky wheel, avoiding the lifting of the cage and counterweight, and greatly increasing the safety factor of maintenance. The present invention adopts turning device to carry out destructive turning on four old lining blocks of the sky wheel at the same time, and disassembly of the old lining blocks after turning is extremely easy, which reduces the difficulty caused by the forced destruction and disassembly of manual use of hammers and flat shovels in the prior art, and reduces the Labor intensity; avoiding the safety hazard caused by many people standing on the sky wheel and manually dismantling the old pads.

Description

technical field [0001] The invention provides a method for replacing the lining block of a sky wheel, and in particular relates to a method for replacing the lining block of a multi-rope friction hoist. Background technique [0002] Multi-rope friction hoists are widely used in mine hoisting equipment. With the gradual increase of production tasks, the wear and tear of various parts of the hoist gradually increases during use. Whether the hoist operates safely and effectively will directly affect the completion of production tasks. The daily maintenance of the hoist will require us to complete the maintenance task in a timely, efficient and fast manner. The new shaft of Linglong Gold Mine Lingshan mining area adopts a multi-rope (four ropes and two tails) friction hoist for hoisting, with a lifting height of 960.5 meters. The layer cage and the counterweight are mutually balanced and lifted, and are mainly composed of drums, electric control equipment, reducers, motors, wire...

AI Technical Summary

Problems solved by technology

[0003] Due to the intensive lifting task of the new shaft, the lining block of the sky wheel has been used for a long time, and the lining block wears seriously after a long period of time, and the wear degree of the lining block of the four wheel sets of the sky wheel is different, and the running diameter has an error, so the lining block must be replaced , The disassembly of the old lining block in the replacement process of the lining block is the link that takes the longest time and has the greatest labor intensity in the whole process. In the prior art, two methods are generally used to replace the lining block: the first method is: use hoisting The cage and the counterweight make the first rope loose and detached from the sky wheel, and then use various shapes of crowbars and sledgehammers to manually remove and replace the lining block. This replacement method has a high risk factor and high labor intensity. During the installation process, glue is used for installation, and it is quite difficult to disassemble. According to past experience, the entire lining block replacement process takes more than 60 hours.

The second replacement method is: in order to save the time of disassembling the lining block, the spare sky wheel is replaced as a whole, and the old lining block sky wheel is returned to the factory for replacement. very high

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