Winding scraper gear

FIELD: transport.

SUBSTANCE: proposed plant comprises box-like scraper connected by leading and trailing cables with two-drum scraper winch, trailing cable resting on end and deflecting pulleys, and unloading ramp. Reverse branch of training pull cable after running around end deflecting pulley arranged in vertical plane is directed along scraper plant axis, cable being located thereunder between two horizontal deflecting pulleys. The latter cover the cable on both sides to displace it at therein interaction. Note here that both pulleys are secured at U-like frame arranged at scraper top parts. Horizontal rollers are arranged at front edges of scraper front and rear side to allow loose cable to rest thereon.

EFFECT: lower wear, hence, longer life, lower electric power input, higher safety.

2 dwg

 

The invention relates to mining and transport machines of periodic action, namely the scraper installations driven by double-drum scraper winches for use underground mine workings to move smitten rock mass to underground transshipment point - ore passes, hatch or bunker.

Famous adopted for the prototype cable-scraper installation comprising a scraper box type, connected to the head and tail ropes with a double-drum scraper winch leaning tail rope on the end and side deflecting units mounted on the side wall of the excavation, loading the shelves (Tarasov UD, Nikolaev, A. Mining-and-transport machines of periodic action. SPb., 2005, p.6-9, Fig.2a, 3a).

However, the disadvantages of the known constructions of the scraper units are increased abrasive and fatigue wear caudal traction of the rope due to its friction on the ground and the walls of the excavation with a corresponding increase in the energy intensity of transportation, increased risk for staff due to move idle branch pulling the rope along the output.

The technical result of the invention is to reduce wear and tear with increased durability caudal traction of the rope, reducing the energy intensity of transport the Finance of the rock mass and improve safety for staff.

The technical result is achieved by the fact that the scraper installation containing scraper box type, connected to the head and tail ropes with a double-drum scraper winch leaning tail rope on the end and side deflecting units mounted on the side wall of the excavation, loading the shelves, the return branch of the caudal traction rope after rounding end deflecting unit, arranged in a vertical plane oriented along the axis of the scraper installation by placing the rope over the scraper between the two horizontally oriented deflector blocks with their coverage of the rope on both sides and the displacement of the rope when interacting units with each other, both unit installed fixed on the upper part of the scraper U-shaped frame, and the upper edges of the front and rear scrapers mounted horizontally oriented cylindrical rollers with bearing on them blank line.

The scraper installation is presented in figure 1 is a side view in the area of the scraper, figure 2 - a section A-A of figure 1.

The scraper includes a scraper 1 box type, connected to the head 2 and the tail 3 ropes with a double-drum scraper winch and shelves (not shown). The return branch of tails is th hauling rope 3 after rounding end deflecting unit 4, placed in a vertical plane oriented along the axis of the scraper installation by placing the rope over the scraper 1 between two horizontally oriented deflector units 5 and 6 with the possibility of their coverage of the rope 3 with two sides and displacement of the rope 3 in the interaction of units 5 and 6 with each other. Both units 5 and 6 installed fixed on the upper part of the scraper 1 U-shaped frame 7, and the upper edges of the front and rear sides of the scraper 1 is installed horizontally oriented cylindrical rollers 8 and 9 can support them idle rope 3. 10 and 11, the direction of movement of the scraper 1 when working and idle strokes, 12 - soil excavation.

When moving a loaded scraper 1 in the direction of 10 or empty scraper 1 in the direction of 11 single rope 3 moves freely relative to the rotating during its movement deflecting units 5 and 6 with a simultaneous, continuous support idle rope 3 on the cylindrical rollers 8 and 9. This significantly decreases the length of the idle rope 3, based on soil production 12, and therefore the wear and tear while significantly increasing its service life and reducing the energy intensity of the transportation of rock mass. By placing idle rope 3 above the scraper 1 along the longitudinal axis of the scraper installation substantially manufacture the camping safety for operating personnel.

Thus, features of the invention provide reduced wear of the tail pulling rope with increased durability, reduced energy intensity of the transportation of rock mass and improve safety for staff.

The scraper installation comprising a scraper box type, connected to the head and tail ropes with a double-drum scraper winch with the support of the tail of the rope to the tail and deflecting units, unloading shelves, wherein the return branch of the caudal traction rope after rounding end deflecting unit, arranged in a vertical plane oriented along the axis of the scraper installation by placing the rope over the scraper between the two horizontally oriented deflector blocks with their coverage of the rope on both sides and the displacement of the rope when interacting units with each other, with both units installed fixed on the upper part of the scraper The u-shaped frame, and the upper edges of the front and rear scrapers mounted horizontally oriented cylindrical rollers with bearing on them idle rope.



 

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Transfer point // 2516370

FIELD: mining.

SUBSTANCE: invention relates to mining and can be used in mine working with the use of mobile carriers. Transfer point comprises roadheader conveyor, towed mobile loader and draft ay loader support. Attachment point between loader draft and roadheader is aligned with the point of contact of ore fed from header to loader and, further, from loader to gate conveyors.

EFFECT: ruled out spillage of rock.

3 dwg

FIELD: mining.

SUBSTANCE: system of pneumatic container transport includes loading and unloading sites, a charge and an idle branches of a pipeline, forming a single closed guiding transport track, filled with working medium, sluice chambers and pneumatic pumps. The guiding transport track is made in the form of horizontal sections with loading and unloading sites equipped with pushers and inclined sections. On the unloading site the charge pipeline is located above the idle pipeline, and on the loading site - below. Both branches of the transport track are made at two sides as smoothly meeting in one point to form a coupling. At the same time the pipeline branches are equipped with relief valves installed in the beginning of inclined sections, and gates installed in the beginning of inclined sections and charge and idle branches. The working medium is compressed air. Sluice chambers are located downstream the crossing of the charge and idle branches of the pipeline. The unloading site is equipped with a tilter and an unloading hopper, and the loading site - with a loading hopper.

EFFECT: simplified design, reduced material intensity, smaller dimensions, increased reliability of a device and simplified process of material transportation in development of minerals.

3 cl, 7 dwg

FIELD: mining.

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14 cl, 13 dwg

FIELD: mining.

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1 dwg

FIELD: mining.

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EFFECT: reduction of wear of a rope and rope-supporting rollers and increase in service life of a hoisting unit.

1 dwg

FIELD: mining.

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FIELD: transport.

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EFFECT: higher safety and efficiency.

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FIELD: mining.

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FIELD: transport.

SUBSTANCE: proposed conveyor comprises plate belt consisting of bed secured to two pull chains with rolls rolling in guides mounted on posts, intermediate drives, each composed of endless pull chain surrounding driving and tension sprockets to allow interaction between pull chain with plate belt. Plate belt links arranged opposite each other over belt width are interconnected by "П"-like beams with replaceable straps made from resilient material and secured at their top brass arms to allow interaction with outer surface of plate belt bed. Plate chains of belt upper run are arranged to interact with roller bearings. Bearing housings of driving and tensioning sprockets and said roller bearings are arranged on the frame to displace it vertically relative to conveyor posts and to be locked thereat by screw mechanisms. Magnets are arranged in gaps between pull chains and intermediate drive plate chains with minimum clearance relative to belt bed between said sprockets. Note here that said frame with chain pull member is arranged to be displaced vertically relative to fixed guides secured on conveyor posts and spring loaded thereto by spiral contraction springs. Said springs thrust against guide brackets to displace vertically relative thereto and be locked by screw mechanisms. Note here that total stiffness of springs is taken to ensure total working force equal to the sum of bed weight and total force generated by magnets. Brackets with magnets are attached to pull circuit frame.

EFFECT: higher traction brought about by intermediate drive.

3 cl, 2 dwg

FIELD: mining.

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FIELD: mining.

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FIELD: construction.

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FIELD: mining.

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10 dwg

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2 dwg

FIELD: earth moving facilities.

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8 dwg

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The invention relates to a device for transporting bulk and bulk cargoes have been presented, namely to cable scrapers, and can be used for the development of fluvial gravel deposits of diamonds, for example, in Angola

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FIELD: earth moving facilities.

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EFFECT: reduced power losses, increased capacity of excavator, possibility of operation in working out placer deposits together with other machines.

8 dwg

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