Conveying belt tensioning device and belt conveyor

Abstract

The invention discloses a conveying belt tensioning device and a belt conveyor. The conveying belt tensioning device comprises a support (3), a connecting rope (6), a first pulley (4) fixed to the support (3) and used for changing the direction of the connecting rope (6), and a balance weight (2) used for tensioning the connecting rope (6). The conveying belt tensioning device further comprises a connecting rope collecting and releasing device (7) used for releasing or collecting the connecting rope (6) so that when the belt conveyor works, the connecting rope (6) can be released or collected according to the stress conditions of the connecting rope (6), and the position of the balance weight (2) can keep unchanged or basically keep unchanged. By means of the conveying belt tensioning device, the maximum load borne by the connecting rope and a connecting piece can be reduced, and therefore the connecting failure is avoided.

Description

technical field [0001] The invention relates to the field of conveyors, in particular to a tensioning device for a conveyor belt and a belt conveyor with the tensioning device. Background technique [0002] The belt conveyor is often used for the load-bearing transportation of materials. Its working principle is to drive the conveyor belt to translate through the rotation of the conveyor wheel, so that the materials placed on the conveyor belt are transported from one end to the other. Belt conveyors are widely used. For example, 117 belt conveyors have been installed in the Huanghua Port production area, which mainly handles coal, with a total length of 67 kilometers. [0003] In order to ensure the normal operation of the belt conveyor, the conveyor belt must have a certain tension, and the conveyor belt is usually tensioned by a conveyor belt tensioning device. The tensioning device can tighten the conveyor belt on the side of the conveyor wheel to increase the contact a...

AI Technical Summary

Problems solved by technology

During the start-up process of the belt conveyor, the active operation of the drive motor will cause uneven tension on the entire conveyor belt 8'. At this time, the counterweight 2' will jump up and down. When the conveyor belt 8' is long or the conveyor belt is elastic When it is too large, the counterweight body 2' jumps greatly, so there must be a bracket 3' high enough to support it, resulting in waste of materials and space

When the jumping direction of the counterweight 2' changes, its acceleration is very large, and the connecting rope 6' and the connecting piece bear a huge pulling force. After long-term use, it is inevitable that the connection failure or the connecting rope 6' and the connecting piece will break. , and the height of the bracket 3' is so high, there is a great potential safety hazard for heavy objects to fall

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