Scraper conveyor

FIELD: mechanical engineering; conveyors.

SUBSTANCE: invention relates to conveyors with multichain traction member. Proposed scraper conveyor contains endless traction member consisting of parallel traction chains, two outer chains and one inner chain, closed in vertical plane on end sprockets and resting on guides of panline flight. It is provided with scrapers secured in turn by ends on outer chains, alternating with scrapers freely fitted with clearances between outer chains and attached by ends on inner chain. Scrappers secured on outer chains are provided with cavities for accommodating inner chain. Traction member is furnished with additional inner chain, both inner chains being arranged in middle part of panline flight symmetrically to each other relative to longitudinal axis of conveyor, and scrapers being secured by ends on both inner chains. Distance between outer and inner chains is set less than distance between inner chains.

EFFECT: increased length of flight owing to increased summary breaking force of traction member chains.

2 dwg

 

The invention relates to konveyerostroeniya, namely conveyors with mnohocetnym traction body, and can be used in the mining industry as a hole, as well as in other industries conveyors increased length and performance.

Known scraper conveyors, comprising a traction unit, consisting of three parallel chains with attached scrapers, closed in the vertical plane at the end sprockets and guides based on panline (Yevnevich AV Transport machines and systems. - M., Nedra, p.40-42, 12,b).

However, a disadvantage of the known conveyors is the constraint length of the rod due to the fact that three-circuit path is statically indeterminate system in which traction can only pass two chains of three.

Known three-circuit scraper conveyor (prototype)containing infinitely closed in the vertical plane at the end sprockets and guides based on panline traction body consisting of three parallel traction chains with attached scrapers, which in turn is fixed by their ends to the two external circuits and alternating with them, scrapers, freely available with clearances between external circuits attached to its Central part on the internal circuit, when closed the prisoners to external circuits scrapers provided with grooves for placement of the internal circuit (RF Application 94024986, M. CL. 65 G 19/00, from 20.02.1996 year).

A disadvantage of the known scraper conveyor is incomplete use of the traction capabilities to maximize the length of the rod conveyor.

The technical result of the invention is to increase the length of the rod by increasing the total disruptive force of the circuits of the traction unit.

The technical result is achieved due to the fact that the scraper conveyor containing infinitely closed in the vertical plane at the end sprockets and guides based on panline traction body consisting of parallel traction chains - two external and one internal, scrapers, in turn secured by their ends to the two external circuits, alternating with them, scrapers, freely placed with a gap between the external circuit and fixed to the inner circuit, while attached to the outer chains scrapers provided with grooves for placement of the internal circuit, according to the invention the traction body provided with an additional internal circuit, both internal circuit placed in the middle part of the panline symmetrically to each other relative to the longitudinal axis of the conveyor, and scrapers mounted on both the internal circuits of their ends, and the distance between the external and internal circuits are made smaller than the distance between the internal circuits.

Scraper conveyor is presented in figure 1 - plan, figure 2 - section a-a of figure 1.

Scraper conveyor contains infinitely closed in the vertical plane at the end sprockets 1 and 2 and supported on the guide panline 3 drawbar organ, consisting of four parallel traction circuits 4, 5, 6, 7, the two outer 4 and 5, and two internal 6 and 7 with attached scrapers 8 and 9. Scrapers 8 are fixed by their ends to the two external circuits 4 and 5, and scrapers 9 is fixed by their ends to the internal circuits 6 and 7. This scrapers 8 and 9 alternate between a and scrapers 9 freely placed with gaps between external circuits 4 and 5. Fixed on the outer circuits 4 and 5 scrapers 8 are provided with notches 10 and 11 for placement of the internal circuits 6 and 7. The two end sprockets 1 and 2 can be driven and provided with drive units 12. The distance b between the outer 4, 5 and 6, 7 chains made smaller than the distance a between the internal circuits 6 and 7.

Scraper conveyor operates in the following manner. When enabled, the drive units 12 and the rotation end of the drive sprockets 1 and 2, the pulling force is transmitted to the external traction circuits 4 and 5 with scrapers 8 and the inner traction circuits 6 and 7 with scrapers 9, which provide for the movement of cargo being transported by panline the rod 3. While all circuits 4, 5, 6, 7 are loading stat is Cesky particular system, i.e. all chains are loaded almost equally. Due to this pulling force, which can transmit the traction body is greatly increased, and therefore, may be correspondingly increased and the length of the rod scraper conveyor. And this allows, in turn, refuse overload of cargo being transported from conveyor to conveyor. Different distances b between the inner 6, 7 and external 4, 5, and the distance between the inner and 4 and 5 chains allow you to limit the width of the panline conveyor 12 and to perform it more compact.

Technical solution allows to increase the total breaking strength of the chain traction unit and the length of the rod scraper conveyor in two times in comparison with the widely used in the mining industry as a downhole two-chain scraper conveyors, and 1.33 times compared to three-circuit conveyor (prototype).

Features of the invention provide an increase in the length of the rod downhole scraper conveyor due to the traction of the four circuits operating in the mode of loading statically defined system that eliminates handling device within a mine site.

Scraper conveyor, containing infinitely closed in the vertical plane at the end sprockets and guides based on Resht is knogo traction rod body, consisting of parallel traction chains - two external and one internal, scrapers, in turn secured by their ends to the two external circuits, alternating with them, scrapers, freely placed with a gap between the external circuits and secured by their ends to the internal circuit, while attached to the outer chains scrapers provided with grooves for placement of the internal circuit, wherein the traction unit is equipped with an additional internal circuit, both internal circuit is placed in the middle part of the panline symmetrically to each other relative to the longitudinal axis of the conveyor, and scrapers mounted on both the internal circuits of their ends, and the distance between external and internal circuits are made smaller than the distance between the internal circuits.



 

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FIELD: mechanical engineering; conveyors.

SUBSTANCE: invention relates to conveyors with multichain traction member. Proposed scraper conveyor contains endless traction member consisting of parallel traction chains, two outer chains and one inner chain, closed in vertical plane on end sprockets and resting on guides of panline flight. It is provided with scrapers secured in turn by ends on outer chains, alternating with scrapers freely fitted with clearances between outer chains and attached by ends on inner chain. Scrappers secured on outer chains are provided with cavities for accommodating inner chain. Traction member is furnished with additional inner chain, both inner chains being arranged in middle part of panline flight symmetrically to each other relative to longitudinal axis of conveyor, and scrapers being secured by ends on both inner chains. Distance between outer and inner chains is set less than distance between inner chains.

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