The executive body

 

(57) Abstract:

The invention relates to the mining industry and can be used for blasting rock during the conduct of mining Shearer way. Object of the invention is to combine the benefits of Executive bodies swept and planetary, increase performance on the rotating drum, carrying out excavations in hard rock harvesters, machines with swept by the Executive body. The Executive body of the mountain harvester includes an arrow with the rotary support mounted on a planetary body with a Central shaft and rods, interconnected planetary gear. In the hollow Central shaft is a hollow shaft sabornie made front with input Windows. Gears of rods fixed on the Central shaft and the boom can be rotated together with the Central shaft in the direction opposite to the movement of the cutters describing elongated epicycloid acting destruction, dust suppression, crushing the rock mass and loading it through the input window sabornie for further transportation. The axis of the rod and the Central shaft may be parallel or intersect in Pleny on rods interconnected planetary gear between themselves and with the Central shaft. The input window sabornie can be made in the form of grid with the possibility of suction of dust from the zone of action of the tool. 3 C.p. f-crystals, 3 ill.

The invention relates to the mining industry and is designed for mechanization of mining excavation and mining.

Known planetary Executive body of the drill type, which consists of a planetary working body, rods and the Central shaft, interconnected planetary gear.

I. I. Klyuchnikov, A. S. Archangel, Tunneling machines PAG-3 PAG-4. Gosgortechnadzor. M, 1961).

The disadvantages of this Executive body is the presence of only one degree of freedom, which leads to holding generate only the specified cross section and the shape /round-arched/; inability blasting of rock during lateral displacement of the working body: the need for large pressure effort on the working face; shortness of maintenance of the working body with a face. In addition, when crossing the mountain massif different strength in the cross stretch at an angle to naplacivanje or the plane of rotation of the rods of the working body are views critical of alinost slaughter, the face not seen, the suction of the dust is difficult.

Known Executive body of the digging machine. C. the USSR N 323553, publ. 1972), which includes a bolt mounted in the housing boom shaft, rock crown, mounted on the shaft.

The disadvantage of this authority is that the cutters crowns wear out quickly when working on the rock fortress above average, because incisor crown is in contact with the rock for a length equal to half the circumference of the drum in the cutting mode, as a result, it is exposed to wear and heat. In addition, low productivity, strong dust generation, many stiby, spreading dust all over the face, impairing visibility culling for the operator /driver/.

The closest technical solution to offer is the Executive body of the mining machine (patent RF N 2000431), including the arrow, with the rotary support mounted on the planetary working body with a Central shaft and rods, interconnected planetary gear, and the transmission of rotation on the crown is made through the parasitic gear.

The disadvantage of this Executive body is the I parts in the area of the blasting of the rock mass and its repeated contact with the destructive elements of your body, but the question of effective dust is not removed, just not achieved spallation of the rock mass. The movement was taking and incisor crowns are combined in a single direction due to the location of the crowns on the shafts parasitic gear. Thus the linear speed of each cutter crowns when meeting face consists of a finite velocities were taken and cutting crowns, thus, there is no instantaneous contact of the cutter with the bottom, is the distance from the beginning of the entrance of the cutter in a mountain range to its release from the array and the cutter describes an elongated part of epicycloid, while the cutter is experiencing increased dynamic loads due to the folding speed of rotation of the crown, and led and mode of cutting, removing Strugi, compression of the breed. In addition, the complicated design of the transmission due to the transmission of spurious gears, combined with rescueme crowns.

The objective of the invention is to increase the efficiency of destruction of various fortresses of rocks, including strong, when the polling method, increase productivity, reduce dust, improve the reliability.

For solving the tasks of the Executive body of the mountain harvester includes a boom support-rotating , between a planetary gear, in the floor of the Central shaft is a hollow shaft sabornie made front with input Windows, and helical rods fixed on the Central shaft and the boom can be rotated together with the Central shaft in the direction opposite to the movement of the cutters describing elongated epicsode acting destruction, dust suppression, crushing the rock mass and loading it through the input window sabornie for further transportation. The axis of the Central rod of the shaft may be parallel or intersect at a point outside of the working body on the front axis of the Central shaft. Crowns can be installed on rods interconnected planetary gear between themselves and with the Central shaft.

The input window sabornie can be made in the form of grid with the possibility of suction of dust from the zone of action of the tool.

In Fig. 1 Executive authority represented to the tunneling unit with hydropowertransport; Fig. 2 - same for harvesters with traditional transport; Fig. 3 - the trajectory of the bumper-shearing tool.

Executive body (Fig. 1) contains a planetary body work in the form of, for example three conical screw crowns is R, 120 degrees relative to the Central shaft 4. The axis of the rod 3 and the Central shaft may be parallel to each other and interconnected planetary gear.

The gear rod 5 is fixed on the Central shaft 4 and the arm 6 of the Executive body 2 (Fig. 1 and 2). Arrow Executive body interconnected with the rotary support 7 (shown conventionally) heading of the unit (Fig. 1) combine (Fig. 2). The rotation of the working body is made from the actuator 8. In the hollow Central shaft 4 (Fig. 1) is a hollow shaft sabornie, which is provided with a Central zaborniak 9 input 10 Windows.

In Fig. 1 and 2 shows a parallel arrangement of rods relative to the Central shaft, in this case, the gear 11, between the housing 6 and rods, cylindrical. Possible execution bevel gear, in this case the axis of the shafts and rods relative to the axis of the Central shaft are at an angle less than 90 degrees and the point of intersection of the axes of the crowns is located in front of the tool on the axis of the Central shaft beyond. The need for this option appears when enlarged cross-section of the driven working to ensure a smooth wall /Board/ developing and conducting excavations at the Toa is. the Hema processing of the face is common for swept Executive body.

The Executive body works as follows. Receiving motion from the actuator 8 (Fig. 1), zaboric 9 and crowns 1 rotate. Simultaneously, the gear rod 6 together with the Central shaft 4 rotates (portable movement) in the direction opposite to the movement of the cutters 2 (relative movement) (Fig. 3). Cutters are the result of the addition of the two movements describe a continuous spatial curves, can be flat elongated epicycloid or spherical depending on gear (gear) 11 (cylindrical or conical) satellite gear crown (Fig. 2) or gear (Fig. 1). The trajectory of each cutter lies on the sphere whose center is at the point of intersection of the axes of the rods and the Central shaft relative and portable rotation of the conical transmission or in the plane of the cylinder (Fig. 3), the outer diameter of which is equal to the sum of the two radii of the cutting crown and the distance between the axes of the rods and the Central shaft, and the inner - difference of the distances between the axes of the rods, the Central shaft and the radius of the cutting bits, that is, the cylinder formed by the end positions of the cutters describing UDL is the function of destruction, dust collection, crushing the rock mass and load it through the entrance window 10 for further transportation.

Long epicycloid (Fig. 3) have a loop, facing the top, cropped part of epicycloid, to the slaughter. The maximum speed of the cutters when the cutter is not in contact with the bottom and describes an elongated part of epicycloid (the process of splitting up together with zaborniak), and the lowest when the cutter is in contact with the coal (rock) - the top loop shortened epicycloid. The smaller loop is sharper peak of the loop described by the cutter, which corresponds to the minimum drive speed of the cutter and maximum impact (relative movement) on top of a sharp loop, the more effective the process of spallation coal (rock) and the cutter is held in contact with the bottom path of the blow - introduction, chipping instant, while the wear of the incisor teeth decreases sharply.

When the operating body (Fig. 1) to tunneling machines with swept by the Executive body and the traditional transport input window with grid, can perform the functions of sucking dust from the zone of action of the tool.

In Fig. 2 shows the performance of the working body for existing harvesters blasting, when the gear 5 of the rod 3 with the Central shaft 4 rotates in the direction opposite to the movement of the cutters 2 for cutting the crowns (Fig. 3).

When performing cutting screw crowns of the cylindrical body work can be applied for the extraction of coal in the development system long faces at the treatment harvesters instead of screws. The principle of shear cutters, achieving instant penetrating contact with a mass of rock will increase the capacity of the sewage treatment harvesters, especially when strong coal array.

We offer Executive body will expand the scope swept roadheaders when conducting mining for rocks with different hardness. Several times increased performance (experience of the harvester PCG proved the advantages of shock-shearing mode of destruction of the face compared to cutting), reduced labor intensity, dust, increases the efficiency of dust suppression by sucking dust through the working body, improves visibility of slaughter by the operator (driver).

1. The Executive body of the mountain harvester, including the arrow with the rotary support mounted on the planetary work organosol Central shaft is a hollow shaft sabornie, performed front with input Windows, and helical rods fixed on the Central shaft and the boom can be rotated together with the Central shaft in the direction opposite to the movement of the cutters describing elongated epicycloid acting destruction, dust suppression, crushing the rock mass and loading it through the input window sabornie for further transportation.

2. Executive authority under item 1, characterized in that the axis of the rod and the Central shaft are parallel or intersect at a point outside of the working body on the front axis of the Central shaft.

3. Executive authority under item 1, characterized in that the crown is installed on rods interconnected planetary gear between themselves and with the Central shaft.

4. Executive authority under item 1, characterized in that the entrance window of sabornie made in the form of grid with the possibility of suction of dust from the zone of action of the tool.

 

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