Quick loosening and tightening tail counterweight tensioning device

Abstract

The invention discloses a quick loosening and tightening tail counterweight tensioning device. The device comprises a steel rack, a fixed frame, a movable pulley block, an electric lifting device and a counterweight assembly, wherein the electric lifting device is arranged at the upper end of the steel rack, the fixed frame is arranged above the steel rack, the counterweight assembly is arranged on one side of the steel rack, the movable pulley block is arranged over the counterweight assembly, and cross beams are symmetrically arranged on the fixed frame; first fixed pulleys are symmetrically arranged on the steel rack, second fixed pulleys are arranged at the two ends of each cross beam, first ropes are symmetrically arranged on the two sides of the counterweight assembly, the first ropes bypass the corresponding second fixed pulleys and then are matched with the second fixed pulleys, third fixed pulleys are symmetrically arranged on the cross beams, and a balance wheel is arranged on the cross beam located over the movable pulley block; and the movable pulley block comprises a movable pulley block steel framework and movable pulleys, a plurality of notches are formed in the movable pulley block steel framework, and the movable pulleys are arranged in the notches.

Description

technical field [0001] The invention relates to a tail weight tensioning device, in particular to a quick-release type tail weight tensioning device. Background technique [0002] In order to ensure that the conveyor belt on the belt conveyor can effectively rotate and convey materials on the rollers and rollers, it is necessary to longitudinally tighten the belt to generate sufficient friction with the rollers and rollers, so each belt conveyor All are equipped with a set of tensioning devices; at present, the most commonly used ones are the traditional tail weight tensioning device and the middle weight vertical tensioning device. [0003] The disadvantages and backwardness of the traditional tail weight tensioning device are: whenever replacing the belt conveyor motor, reducer, roller, belt or performing maintenance of various belt conveyors such as roller lagging, it is necessary to remove the belt first. Slack, that is, the weight box of the tail tensioning device must...

AI Technical Summary

Problems solved by technology

[0003] The disadvantages and backwardness of the traditional tail weight tensioning device are: whenever replacing the belt conveyor motor, reducer, roller, belt or performing maintenance of various belt conveyors such as roller lagging, it is necessary to remove the belt first. Slack, that is, the weight box of the tail tensioning device must be pulled up first

If the old-fashioned tail weight tensioning device needs to pull up the counterweight box, at least two workers need to climb to the tensioning device and lift the counterweight box little by little with a chain hoist. It is necessary to prepare the hoist in advance. After being transported to the site and hung up, one person on both sides pulls the chain hoist at the same time to lift the counterweight box. The maintenance work can only be started after the tape is loosened; After the tape is re-tightened in the heavy box, the gourd is disassembled and transported back to the warehouse. This is not only labor-intensive, but also time-consuming and labor-intensive. It is also extremely unsafe because it requires workers to climb and pull the gourd.

Therefore, in view of the current backward and inefficient maintenance and production methods, a fast elastic tail weight tensioning device is specially designed.

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