Heading machine

FIELD: engines and pumps.

SUBSTANCE: heading machine contains a frame supporting the running gear, an actuator reduction gear. A rotary actuator is fitted on the output shafts of the said reduction gear and consists of a cross-piece with four beams provided with loading scoops, the supplied loading ladles, a borer and starting borer, an electric equipment and hydraulic system. A space with volume not less than that of the bucket is arranged inside every rotary actuator cross-piece beam. All the said spaces communicate, via inlets and outlets, by means of a system of pipes, the inlets and outlets incorporating shut-off valves. The spaces of two adjacent cross-piece beams are filled with high-density a liquid. Note also, that an independent pump with a position pickup is built in the space of every beam, the said pickup being coupled with the cross-piece beam inlet and outlet shut-off valves.

EFFECT: automatic balancing of the rotary actuator cross-piece and ruling out its deviation from rectilinear movement.

5 dwg

 

The invention relates to equipment for carrying out mining arch sections in underground mining.

Known continuous miner containing a frame to which is attached the chassis, the drive gear of the Executive body, on the output shaft of which is fixed a rotary Executive body, consisting of a cross with four beams, equipped with a loading bucket, drill and sabornie, electrical and hydraulic systems [1].

The disadvantage of such a harvester is that during operation appears imbalance rotor Executive body that occur because of uneven loading and unloading of the buckets of the spider. Each loading bucket of frogs in the process of work of the Executive body of the harvester moves along the circle, take turns scooping repulsed ore from the ground, raising it above the level of the conveyor belt and unloading it, and then, moving further around the circumference of the blank is lowered to the ground and repeat the process. This happens with each of the four buckets. However, since the latter are located on opposite rays crosses, at any time, two of them loaded, and the other two unloaded. Moreover, the loading of the bucket begins when combined beam crosses the lower half of its vertical axis, when the bucket is seriously the lowest point of its trajectory. During rotation of the bucket approximately 180° from this point it starts unloading. Empty the bucket is moving on until you reach the starting point of the fill. The imbalance of the spider causes the reactive component of the cutting forces affecting the straightness of the sinking drift harvester, and causes overheating and rapid wear of the bearings.

The objective of the invention is the automatic balancing of the spider in the process, combine and eliminate withdrawal from rectilinear motion.

The technical result is achieved by the fact that the harvester shaft sinking, contains a frame to which is attached the chassis, the drive gear of the Executive body, on the output shaft of which is fixed a rotary Executive body, consisting of a cross with four beams, equipped with a loading bucket, drill and sabornie, electrical and hydraulic systems, and within each beam crosses the rotary Executive body cavity not less than the volume of the bucket cavity all the rays of the cross are connected with each other through input and output apertures of the system of tubes into the holes of the mounted locking valves. Cavities of two adjacent beams crosses filled with a liquid of high density, in addition, in the cavity of each beam is embedded stand-alone pump position sensor associated with apiradee valves inlet and outlet cavities rays of the spider.

1 shows a harvester shaft sinking, figure 2 - the Executive body of the harvester, figure 3 is a view in front and the direction of rotation of the spider, figure 4 - cross section crosses the Executive body of the harvester, figure 5 - rear view of crosses with the direction of rotation.

Harvester shaft sinking contains a frame 1 to which is attached running gear 2, gear 3 of the cutter drive the conveyor 4, the electrical and hydraulic system.

On output shafts 3 of the cutter drive fixed rotary Executive body 5 consisting of a cross with 6 loading buckets 7, borax 8 and sabornie 9. The cross-piece 6 has four beam. Inside each beam crosses 6 rotary Executive body 5 is made of the cavity 10. The cavity 10 of the spider 6 is sealed and communicated via a system of tubes 11 through the inlet and outlet openings. In the joints of the tubes 11 with an inlet 12 and outlet 13 holes of the cavities 10 is mounted locking valves. The cavity 10 of the two adjacent beams crosses 6 fluid-filled high density.

In addition, in the cavity 10 of the spider 6 is mounted stand-alone pump 14 from the position sensors associated with the locking valve inlet 12 and outlet 13 of the openings of the cavities 10 rays crosses 6.

Harvester shaft sinking R who works as follows.

Ore goes by zaborniak 9 and brown 8 rotary Executive body 5 of the harvester mounted on output shafts 3 of the actuator and rotating in the same direction. Repulsed ore sacebeautle loading buckets 7 turns each beam crosses 6 Executive body 5, rotating in the opposite direction. Upon further rotation of the beam ore in the bucket 7 rises above the level of the conveyor 4 and unloaded its cargo carrying body, which is transported to the next vehicle. This occurs alternately with each beam crosses 6. Upon further rotation of the beam bucket 7 is lowered to the ground and it is loading is repeated. Serving on the bottom is working stroke of the harvester with the chassis 2, mounted on frame 1 of the machine.

The cavity 10 of the two adjacent beams crosses 6 pre-filled with a liquid of high density. The pump 14 is configured to turn on automatically from the position sensors, each of which is triggered when the beam such position when it is combined with the upper part of the vertical axis of the spider 6 and when it is combined with the right part of the horizontal axis crosses 6.

When the sensors are tripped open position locking the valves in their cavities 10 and adjacent cavities 10 and includes a pump 14. This liquid high density re the ekaet through the output hole 13 is filled cavity 10 of the beam, under the combination of the right horizontal half axis crosses 6 in an empty cavity 10 of the beam, under the age of alignment with the upper half of the vertical axis crosses 6 through the inlet 12. And from the cavity 10 of the beam, under the age of alignment with the lower vertical axis crosses 6, the fluid flows in the same manner in the cavity 10 of the beam, sovmestimost with the right part of the horizontal axis crosses 6. Thus, when the beam is combined with the lower half of the vertical axis of the spider 6, appearing at the point of loading of the bucket 7, the fluid from the cavity 10 of the beam through the valve flows into the cavity 10 of the previous beam and when the beam is combined with the upper part of the vertical axis of the spider 6, appearing at the point of unloading of the bucket 7, its cavity is filled with a liquid of high viscosity, balancing the opposite beam with the filled bucket 7. Simultaneous involvement of two pumps 14 supports the presence of a liquid of high density in the cavities 10 rays crosses 6, located only in the right half of the vertical axis of the yoke 6. By filling liquid of high density cavities 10 rays crosses 6 with an empty loading bucket 7 is opposed to the rays with the filled buckets 7, due to their approximately equal to the weight accommodated in their volumes. So, at any point in time, always in the left half vertically from the axis of the spider 6 are two rays with empty cavities 10 of the spider 6 and full loading buckets 7, conversely, in the right half of the vertical axis of the spider 6, the two beams with the filled cavities 10 of the spider 6 and blank loading buckets 7.

Thus, the rays of the cross are mutually cancel each other, so it isn't a deviation from a given rectilinear direction of movement of the harvester during production, imobilecinema crosses the Executive body, increasing the life of bearings.

Literature

1. The operation of the digging machine PC-8M./ Kaahani, Vthread, Whiteline and others; vol. 2, Rev. and extra - M.: Nedra, 1978. - P.5-7, 23-33.

Harvester mine tunnel containing a frame to which is attached the chassis, the drive gear of the Executive body, on the output shaft of which is fixed a rotary Executive body, consisting of a cross with four beams, equipped with a loading bucket, drill and sabornie, electrical and hydraulic systems, characterized in that within each beam crosses the rotary Executive body cavity, not less than the volume of the bucket cavity all the rays of the cross are connected with each other through input and output apertures of the system of tubes into the holes of the mounted locking the valve cavity between two neighboring rays crosses fluid-filled high-density the STI, in addition, in the cavity of each beam is embedded stand-alone pump position sensor associated with locking valves inlet and outlet cavities rays of the spider.



 

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