Crossed side dump type rear scraper conveyer

Abstract

The invention relates to a crossed side dump type rear scraper conveyer comprising a conveyer head (1), a conveyer tail, a driving part (6), a scraper chain and a middle section (3). The crossed side dump type rear scraper conveyer is characterized in that an unloading part of the rear conveyer head (1) is fixedly connected with a bearing part of the conveyer tail of an elevating conveyer (9) into a whole. The crossed side dump type rear scraper conveyer is suitable for the mining of a full-mechanized caving mining face and comprises the crossed side dump conveyer head, a transitional groove, the middle section, the conveyer tail, the driving part and the like. According to the crossed side dump type rear scraper conveyer, the conveyer head adopts the crossed side dump form so as to reduce the unloading height of the conveyer head to the greatest degree; the driving part is arranged vertically, the hysteresis phenomena of the conveyer head and the conveyer tail of the rear scraper conveyer can be avoided, so that the running condition of the rear scraper conveyer is improved, and the integral running reliability of the device is improved; and as the unloading part of the conveyer head and the bearing part of the conveyer tail of the elevating conveyer are connected into a whole, the unloading position is fixed, a conveyer head pushing beam is connected with a lane tail bracket, and the movement of the elevating conveyer is synchronous with that of the rear scraper conveyer.

Description

Technical field [0001] The invention relates to a cross side unloading type rear scraper conveyor. Background technique [0002] Fully-mechanized caving mining technology is currently one of the important and high-efficiency mining methods for thick coal seams in China. It is used in gently inclined, inclined, steeply inclined thick and medium thick coal seams with relatively complex geological structures and poor conditions of the "three soft" , "Unstable" coal seams have obvious advantages in high-efficiency mining, which are mainly reflected in the following aspects: 1. It has strong adaptability to coal seams with unstable coal and large thickness changes; 2. Complicated geological structures and passing faults It has good adaptability; 3. Fully-mechanized top coal caving technology has obvious advantages for one-time mining of extra-thick coal seams. [0003] However, the existing rear scraper conveyors for fully mechanized caving face are all end-discharge types, and there a...

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Problems solved by technology

[0003] However, the existing scraper conveyors at the back of the fully mechanized caving face are all in the form of end unloading, and there are many problems in the development of equipment matching that have not been fully resolved, mainly in the following aspects: 1. The rear scraper conveyor The machine adopts the end unloading method, and the overlapping unloading position of the conveyor and the reloader varies greatly. On the one hand, the coal unloading effect is unstable, and on the other hand, it is easy to pull back the coal, which increases the running resistance and driving load of the rear scraper conveyor and reduces the load. 2. The rear scraper conveyor adopts the end unloading method. Due to the influence of the layout position and space of the head and tail drive parts, the actual arrangement and operation of the rear scraper conveyor will cause The tail is bent, which increases the running resistance of the rear scraper conveyor to a certain extent; 3. The rear scraper conveyor adopts the end unloading method, and the unloading height of the machine head is high, and the coal discharge effect at the transition section is poor, or even impossible. Coal discharge, to a certain extent, restricts the further improvement of the recovery rate; 4. The rear scraper conveyor adopts the end-unloading method, and the conveyor and the reloader move step by step, the links are complicated, and the propulsion speed and efficiency are low

5. The rear scraper conveyor adopts the end unloading method. Due to the limitation of the layout of the driving part, the support at both ends of the working face is large and difficult, which increases the labor intensity of the workers. At the same time, there are certain safety hazards

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