Telescopic simple tail of scraper conveyer and scraper conveyer

Abstract

The invention relates to the field of scraper conveyors for a fully mechanized mining face underground a coal mine, in particular to a telescopic simple tail of a scraper conveyer and the scraper conveyer. Drive devices are arranged on a head and a tail of a conventional scraper conveyor, however, some coal mines have short working faces or large slopes, only one drive unit needs to be arranged on the head under the condition, and then the transport requirements can be met. Meanwhile, in order to adjust the chain tension at any time, the retractable simple tail needs to be arranged at the time, while a conventional telescopic tail widely adopts the form of being composed of a fixed frame and a movable frame, and the structure of the telescopic tail is bulky and heavy. According to the telescopic simple tail in the embodiment, a sliding frame is arranged in a tailstock, and a telescopic overlapping portion is located at a slope section of the tailstock, so that the space is saved to the greatest extent, the climbing angle of a middle plate is reduced, the dinting amount of a coal cutter is increased, the equipment cost is saved, pushing and maintenance are facilitated, and the service life of equipment is prolonged.

Description

technical field [0001] The invention relates to the technical field of scraper conveyors for fully mechanized mining working faces in coal mines, in particular to a scraper conveyor with a simple retractable tail and a scraper conveyor. Background technique [0002] In the fully mechanized mining face of the coal mine, the scraper conveyor is one of the main equipments of the fully mechanized mining face. During the working process, the size of its load is constantly changing with the influence of the coal mining speed of the shearer and the movement of the support, and the scraper chain is also loose or tight accordingly. The retractable tail, as the main part of the scraper conveyor, can realize the adjustment of the chain tension at any time, effectively reduce the number of chain cutting operations of the scraper conveyor on the working face, save labor and improve work efficiency. [0003] The telescopic tail of the currently widely used scraper conveyor is composed of...

AI Technical Summary

Problems solved by technology

The telescopic overlapping part of this structure is located in the horizontal section, which requires a longer horizontal section. However, when the length of the tail is required to be certain, the longer the horizontal section, the greater the climbing angle of the middle plate, so that the scraper chain is aligned with the middle plate. The more worn

Moreover, this structure is heavy and the overall size is too large, which is difficult to meet the requirements of undercover and cutting through the floor of the shearer.

Images