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.
FIELD: open-cast mining.
SUBSTANCE: invention relates to continuous-operation self-propelled device designed for checking possibility of mining mineral materials and taking out interlayers whose properties, from point of view of their breaking and further transportation, are of vital importance at open cast mining. Proposed device has running gear, frame with drive unit and control panel and cutting drum arranged before running gear and equipped with cutting tools. Said drum is installed in supports of carrying frame for rotation around horizontal axis and is made for adjusting position in height by means of cylinder installed between frames and carrying frame. Crawler-type running gear is used. Cutting drum passes over entire width of device, and it is furnished with guide partitions and guard shield, is functionally connected with chute-like housing and is made for stepless change of speed of rotation, speed of feed and adjusting transverse tilting from one of two sides relative to working platform owing to vertical adjustment of position of one of hinge joints connection device frame and carrying frame which is made in form of forked rotary cantilever.
EFFECT: improved operating capabilities of device.
5 cl, 5 dwg
FIELD: mining machinery manufacturing, particularly machines which completely free the mineral from the seam.
SUBSTANCE: heading machine comprises executive tool including boom with body and cutting crown, as well as feeder with nose and rock raking device. Rock raking device is installed in lower boom part facing ground. Rock raking device is plate shaped as rectangular trapezoid. Minor trapezoid side is located at cutting edge, major one facing feeder nose. The plate is rigidly connected to shaft displaced towards minor trapezoid side. The shaft is installed in socket formed in lower boom part facing ground. The plate may rotate with respect to longitudinal shaft axis. Stops are formed on boom body from both sides of longitudinal boom body axis and spaced a distance providing plate rotation through α angle, wherein 30°≤α≤45°.
EFFECT: simplified structure and increased efficiency of machine loading near face.
FIELD: cutting-loading machines for explosion-free cutting of deposits having complex structures.
SUBSTANCE: mining machine comprises frame with movement mechanism, boom with cutting crown and loading device. Crown has rock-cutting tools. Loading device is made as inclined rotary hoisting table with gathering arms and central drag conveyor. Frame may rotate with loading device installed thereon and with unloading conveyer. Cutting crown may rotate about axis of rotation with respect to longitudinal boom axis through φ angle defined in dependence of rock hardness. Rock-cutting members are made as disc cutters reinforced by hard-alloyed pins and freely rotating in staggered order around replaceable pins.
EFFECT: increased operational efficiency due to extended field of practical usage thereof and increased service life of rock-cutting members.
FIELD: mining; apparatus for making tunnels in underground mining of minerals.
SUBSTANCE: machine includes undercarriage representing a frame whereon caterpillar trucks are attached and trunnion axes of a working head gearbox together with a rotary working head, loading buckets, berm mills, cutting drums, gathering blades, conveyer and protection cowl mounted on supports of said frame. Hydraulic lift cylinders of the working head gearbox are attached to this frame, rods of said cylinders are attached to the working head housing and all rotating parts of said rods are set into bearings equipped with a force lubrication system. The lubrication system includes pump, pressure pipeline, manifolds and system of distribution tubes leading to gear shaft bearings of the gearbox. The undercarriage frame has two tightly closed cavities, wherein a pressure line between the pump and manifolds is positioned being made in the form of coils. Both cavities of the frame are filled with cooling fluid.
EFFECT: cooling of lubricating fluid within the lubrication system; increasing the life of gear shaft bearings of the machine gearbox; decreasing the ambient air temperature; enhancement of working conditions for the operating staff.
FIELD: mining; apparatus for making arched tunnels in underground mining of minerals.
SUBSTANCE: machine includes frame whereon an undercarriage and working element drive gearbox are mounted together with a rotary working head being attached to output shafts of said gearbox. The working head consists of borer, pitching borer, cross element, each end of its arms having a loading bucket with a bottom and sidewalls, and conveyer. The front face bottoms of two loading buckets positioned on opposite arms of said cross element are slopped forward with respect to the machine displacement vector, and those of the other buckets - slopped backward with respect to the same vector.
EFFECT: cleaning-up with the full engagement of the bucket cross-section area; reduction of impact loads for the cross element; reduction of heating and increased wear of the bearings in the working head drive gearbox of the 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.
SUBSTANCE: facility for milling and/or drilling rock or similar materials consists of spindle drum assembled on support and intended to rotate around axis; several rotating cutter spindles are installed in drum eccentric to axis of drum. On their ends projecting out of the spindle drum the cutter spindles bear working tools. At least two of cutter spindles are actuated from a common reducing drive, which has driven tooth gears stationary arranged on the cutter spindles and a common drive element interacting with driven tooth gears. Also the drive element and the spindle drum are assembled so as to provide their rotation relative to each other.
EFFECT: processing hard materials at high efficiency of milling, increased operation life of tools, high operational reliability and compactness.
55 cl, 22 dwg
SUBSTANCE: invention is related to mining industry and may be used for performance of assembly works in mine openings. Actuator of mining machine comprises boom with crown arranged in it, reducer, reducer drive, mount platform arranged on two front levers and two back levers made in the form of hydraulic cylinders. At the same time levers and their fixation elements make a parallelogram mechanism, device for lifting and moving of mount platform. Device for lifting and moving of mount platform is arranged in the form of one lifting hydraulic cylinder, which is hingedly joined to mount platform, coaxially to hinged joints of front levers connection to mount platform. At the same time lifting hydraulic cylinder is installed at the sharp angle relative to horizontal plane of reducer and is hingedly joined to reducer in zone of back levers connection to mount platform with making of arm relative to hinged joint of front levers installed on reducer.
EFFECT: wider field of mount platform application in various designs of mining machine actuators, and also simplified design of mining machine actuator.
SUBSTANCE: invention is related to mining industry and may be used in boring-shearing combines for rock breaking with cutting tool. Method for breaking of massif with cross cuts of certain depth made with rotor and planetary-disk actuators. When using combined breaking element: cuts of planetary-disk actuator are arranged in radial direction, and cuts of rotor actuator in tangential one in the form of concentric circumferences. At the same time depth of rotor element cuts is equal to depth of planetary element cuts in the areas of cuts crossing.
EFFECT: reduced power inputs and yield of fine rock fractions in process of massif breaking with combine actuators.
2 cl, 4 dwg
SUBSTANCE: invention refers to mining industry, namely to driving shields, and may be used during building of highway, railway and public tunnels. Operating member of driving shield includes centre rotor working organ in the form of faceplate, working organs with rock-breaking tools on outer surface for creation of oval form of tunnel section, actuating device of working organs and traveling mechanism. In order to create oval form of tunnel section, working organs are designed as two side and two vertical working organs of drum-type. Each side working organ is designed in the form of body of revolution arranged in relation to cross centroidal principal axis of tunnel section, with bow-shaped element corresponding to arch, half of side arches and perimetres of their connection. End surfaces of vertical working organs of drum-type correspond to arch and floor arch of tunnel. Central working organ is installed by means of bearing on axis located in centre of gravity of driving shield, this axis is also operating member guide. At that side working organs and vertical working organs are installed by means of bearings on their axes rigidly cantilever connected to guide. At that each of mentioned working organs is provided with actuating device, and traveling mechanism is designed in the form of hydraulic jacks.
EFFECT: providing of driving of tunnel of optimal oval shape transverse and establishing of conditions for maximum mechanisation and automation of all operating processes during tunnel building.