The executive body
(57) Abstract:The invention relates to mining machinery and can be used in the construction of mining machines. The technical result - improving the reliability and efficiency of the Executive body. The Executive body consists of arrows with the crown gear with the drive frame with beams placed in the guide gearbox two cylinder telescope connecting the frame with the gearbox installed parallel to the horizontal plane passing through the longitudinal axis of symmetry of the beams. The cylinders telescope located diagonally on opposite sides of a horizontal plane with the formation of the shoulder with respect to a given plane. 2 Il. The invention relates to the field of mining engineering and can be used in the construction of mining machines.Known Executive body of the harvester PC-9R (see kN. I. I. Of Basera, C. I. Kruchinina, Y. L. Sokolova. Tunneling machines. M.: Nedra, 1974 S. 112, 117), containing an arrow with a crown gear connected in a single whole frame, beams which can move the arrow with gear guide gear through cylinders telescope, completed design is its low efficiency and reliability due to the fact, that frame beams in this technical solution, in addition to cutting forces and the additional weight of the body is still active and the torque arising from the cylinders of the telescope as a result of their work. All this leads to intense wear beams and guide gear.The closest technical solution adopted for the prototype, is the Executive body of the digging machine GPX (see Prospectus digging machine GPX, Glorikian S. H. and others Machinery and equipment for mines. - M.: Moscow state mining University, 1994, S. 25 g), including the boom with the crown gear with the guides, United into one, the frame having a beam, which moves in the guide gearbox arrow with the help of hydraulic cylinders telescope, located below the horizontal plane passing through the longitudinal axis of the beams.The disadvantage of this technical solution is also low efficiency and reliability telescopic separation. Due to the fact that the beams and guides reducer force resulting from the torque generated by the cylinders of the telescope, which greatly exceeds the weight of the boom with gear and an additional force to the force of cutting, resulting from the work of ispolnitel beams.The present invention is improving the reliability and efficiency of the Executive body.In a well-known Executive body, including the boom with the crown gear with the drive frame containing beams placed in the guide gearbox two cylinder telescope connecting the frame with the gearbox installed parallel to the horizontal plane passing through the longitudinal axis of symmetry of the beams, cylinders telescope located diagonally on opposite sides of a horizontal plane with the formation of the shoulder with respect to a given plane.Comparison of the claimed Executive authority with the prototype allows to make a conclusion about the absence in the latter of signs similar to a distinctive signs with the claimed Executive authority.The cylinders telescope located diagonally on opposite sides of a horizontal plane with the formation of the shoulder with respect to a given plane.The set of features of the proposed technical solution is different from the prototype and known analogues and should not be explicitly studied the prior art, therefore, the authors believe that object, that combination of traits, namely cylinders telescope located diagonally on opposite sides of a horizontal plane with the formation of the shoulder with respect to a given plane, solves the problem of the invention: improving the reliability and efficiency of the Executive body.These characteristics are related to each other so that when the removal of one of them disappears given by the invention of the technical result.The invention also represents a step in the development of technology and is progressive, as it allows to increase the operational reliability and efficiency of the Executive body.The Executive body, which claimed the invention may find wide application in the mining sector and other sectors of the economy, that is industrially applicable technical solution. The achievement of the technical result, when the work of the Executive authority is ensured by the fact that the cylinders telescope located diagonally on opposite sides of a horizontal plane with the formation of the shoulder with respect to a given plane.This solution allows to increase the telescope is located diagonally on opposite sides of a horizontal plane with the formation of the shoulder with respect to a given plane.This design allows during operation of the telescope Executive body significantly reduce the load on the beams of the frame and guides the gears. This is due to the fact that the moments arising from the cylinders of the telescope in this design, act toward each other, thereby compensating for each other, changing the shoulders of the cylinders of the telescope relative to the horizontal plane passing through the longitudinal axis of symmetry of the beams, it is possible to compensate the action of the weight of the boom and gear. Thereby significantly reduce the forces acting on the beams of the frame and guides the gearbox, and to increase the operational reliability and efficiency of the Executive body.The essence of the invention is illustrated the accompanying drawings.In the drawings shows:
Fig. 1 - General view of the Executive body (side view);
Fig. 2 is a cross section of the Executive body (Sech. A-A).The Executive body contains (Fig. 1, 2) arrow 1 crown 2, gear 3 with the actuator 4, a frame 5, a beam 6, is placed in the guides 7 of the gearbox 3, two cylinder 8 telescope connecting frame 5 with gear 3 and installed parallel to the horizontal plane of the bone "B".The work of the Executive body are carried out as follows ( Fig. 1, 2).Pressure builds in the cylinder 8 telescope with extension boom 1 with the crown 2 and gear 3 driven 4 together in the guides 7 relative to the beams 6.Due to the fact that the cylinders 8 telescope installed diagonally and on opposite sides of the horizontal plane "B" with the formation of the shoulder "l" and "l1" is the compensation of the forces resulting from the torque action arising from the cylinders 8 of the telescope and directed towards each other, thereby greatly reducing the load on the beams 6 and guide 7.We offer Executive body by the arrangement of the cylinders telescope diagonally and on opposite sides of a horizontal plane passing through the longitudinal axis of symmetry of the beams with the formation of the shoulder with respect to a given plane, allows to increase the operational reliability and efficiency of the Executive body. Executive body, including the boom with the crown gear with the drive frame containing beams placed in the guide gearbox two cylinder telescope, soedineniya beams, characterized in that the cylinders telescope located diagonally on opposite sides of a horizontal plane with the formation of the shoulder with respect to a given plane.
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.