Cutter head containing own motors and gearbox
FIELD: machine building.
SUBSTANCE: present description relates to the cutter head for mining machine, and in particular to gear of the force transition to the cutter head of the mining machine, such as continuous miner. The machine for the ore bed development includes: motor with shaft, cutting drum with specified motor and connected to ring tooth-wheels. The primary planetary gear connecting the motor and cutting drum and containing sun gear connected with shaft for force transition to the planetary pinions entering in the engagement with the internal ring tooth-wheel. Secondary planetary gear comprising sun gear receiving force from the ring tooth-wheel and transmitting the rotation force by the non-orbital planetary pinion. Spur gear secured to each side of the non-orbital planetary pinion, at that each spur gear engages with the ring tooth-wheel secured to the cutting drum.
EFFECT: possibility of use of same motor to drive various parts of the cutting drum, as spur gears can engage with various parts of the drum.
10 cl, 6 dwg
The level of technology
The present description relates to a cutting head for mining machines and in particular to a mechanism for transmission of coal-cutting head of the mining unit, such as the mining machine of continuous operation.
Fig.1 and 2 show a conventional mining machine 10 containing the main frame 12 supported on crawler means 14, one on each side of the machine, serving to move or advance relative to the ground. Crawler means 14 are driven by electric or hydraulic motors (not shown) mounted on the frame 12 in a known manner.
The mining machine 10 also includes means, indicated generally by the digital position 16, for the production of cut and excavation of aggregate material from the ore formation. Means 16 are mounted at the front end of the boom 20 pivotally mounted on the frame 12. Unit 18 the cutting drum includes a number of teeth 19 for tearing, breaking or cutting aggregate material ore formation for subsequent excavation.
The boom 20 comprises a jumper 21 connecting to each other two side of the lever 22 located at a distance from each other, each of which is pivotally mounted on a pin (not shown) of the frame 12. To ensure the selection of the angular position of the boom 20 relative to the frame 12 are two water�quarter of actuator 24. Thus, the arrow 20 and, therefore, block 18 of the cutting drum can be raised and lowered as you move the mining machine 10 into the ore formation, so that the cutting aggregate material is provided over the entire height of the reservoir. This material is collected in a downstream mining excavator 26 and fed to a dual chain conveyor 28 for further transport in a known manner. On each lever 22 has one motor 30 and interacting with the gear box 32 (see Fig.2) providing a drive unit 18 of the cutting drum. Gearbox 32 includes a longitudinal wall 34 connecting unit 18 of the cutting drum with a jumper arrows 20. Longitudinal walls 34 are part of a gear box 32, which connects the actual cutting drums with an arrow, and hence with the rest of the machine.
Usually, the cause of failure of the above described conventional mining combine continuous action is the destruction of the mentioned longitudinal walls. These walls not only have to withstand the large forces generated when cutting materials, but, as a rule, to perform the role of a supporting structure for the means for transmitting mechanical forces from cutting the engine to the cutting drums. This transmission is usually by means of a complex mechanism consisting of �updateh wheels and shafts, passing through the entire length of the longitudinal walls, as shown in Fig.2. To provide the force necessary to mechanically remove a substantial amount of material of the longitudinal walls 34, which leads to a significant reduction in the overall strength of the wall. In certain circumstances, when a piece of material or broken cutter got jammed with emphasis in these walls, it can lead to destruction of the walls. In such cases, the material of the wall may come into contact with the shafts or gear wheels passing along the wall, and cause a machine stop.
Summary of the invention
The present invention aims to remove the need of using the said longitudinal walls for transmission of mechanical force.
The present invention proposes an Assembly for mining of ore formation containing the engine and cutting drum mounted on the frame for removing aggregate material from the ore formation. The engine is located inside the cutting drum, while they are connected to each other by means of a transmission, the transmitting force from the motor to the cutting drum. Gearbox is also located inside the cutting drum.
Proposed in the invention of the cut head is a first cylindrical cutting head of the mining combine continuous�VNOM operation, having one or more (usually two) cutting motor located inside the cutting drums. In addition, first proposed the double planetary gear train, which uses a complex planetary gear mechanism, located inside the cutting head.
Proposed coal-cutting head allows you to eliminate several problems associated with the use of coal-cutting heads, are known in the art. Furthermore, the use of such a cutting head reduces the number of parts and simplification of the cutting system.
In the proposed coal-cutting head used hard gear box, located in blocks cutting drum, not only cutting up the motors and gear train, but also provides increased torque compared to known models of continuous-mining machines. Proposed coal-cutting head also facilitates the possibility of increasing the width of the cutting head by using a modular design that allows you to easily increase its width to create space to accommodate the more powerful engine, which allows to significantly increase the overall capacity and performance of these machines. In addition, due to the simplified design, reduced cost of manufacture of the proposed coal-cutting head in comparison with the cutting head, known in the art. Proposed coal-cutting head can also help reduce the cost of cutting the boom and to a smaller width, for example to ensure the placement of drilling devices for the production of roof bolting. Another advantage is that in this invention the mass of the cutting motor is moved forward, helping to improve cutting efficiency. In the proposed coal-cutting head also uses a simple gear train compared to conventional mining combines. In addition, the new gear has fewer custom parts, which can reduce the manufacturing cost and the number of required spare parts.
Brief description of the drawings
Fig.1 depicts in perspective of the mining unit, known in the art.
Fig.2 depicts a partially sectioned mountain unit shown in Fig.1, which contains an arrow, block cutting drum and its transmission.
Fig.3 depicts in perspective of the mining unit containing the boom and cutting head according to the present invention, with the Central and left-hand cutting drums are not shown. The drawing is visible only some of the cutting teeth.
Fig.4 depicts in perspective a gear on the inner side of the longitudinal wall of the mountain of Assembly, while�data in Fig.3.
Fig.5 depicts in perspective of the left side of the transmission gear that is located inside the housing main gearbox mountain unit shown in Fig.3.
Fig.6 depicts in perspective of the right side gear train located inside the housing main gearbox mountain unit shown in Fig.3.
It should be understood that this description is not limited to details of construction and arrangement of its elements, according to the following description or drawings. This description allows for the possibility of other various embodiments of the invention. In addition, it should be borne in mind that the phraseology and terminology are used only for description of the invention and not limit it. The words "comprising" and "containing" and other similar words used in this description, are applied to cover the items listed below and their equivalents, as well as additional elements. The phrase "consists of" and similar phrases are used to cover only the items listed below and their equivalents. In addition, it should be noted that terms such as "forward","backward", "left", "right", "up", "down", etc., are used for convenience of description and should not be construed as limiting the invention.
Description� preferred embodiment of the invention
Fig.3-6 shows the boom and cutting head designated in the collection of digital position 100, mountain harvester of continuous operation. They replace the means indicated in General by the digital position 16, for the production of cut and excavation of aggregate material from ore bed, which is shown in Fig.1 and 2.
Fig.3 shows in perspective a mountain unit containing the arrow 124 and the cutting head 120 according to this description, and the Central and left-hand cutting drums are not shown. The drawing is visible only some of the cutting teeth 188. Arrow cutters and the head Assembly contain cutting the engine 104 and transmission 108, entirely located inside the cutting drum 112, and two longitudinal walls 116, located at a distance from each other, which connect the cutting head 120 with an arrow 124. Each wall 116, made of steel plates bolted 128 to the corresponding side of the arrow 124.
Longitudinal walls 116 have holes (not shown) for the passage of electrical and conductive lines to get electricity and engine cooling, and to ensure the transfer of water for irrigation walls develop to regulate the amount of dust. These openings are smaller than in the longitudinal wall of the conventional unit, where they provide space for gear connecting� Ironman head with remote control, allowing its rotation.
Electrical energy is supplied through the longitudinal walls 16 to the motors 104, where it is converted into mechanical energy of rotation, for effective use of this energy when performing mining operations must reduce speed and increase torque. As shown in Fig.4, 5 and 6, the force of rotation is transmitted from the engine 104 through the shaft 130 connected to a sun or Central gear wheel 134 of the primary planetary gear mechanism. This sun gear transmits power to the planetary gears 140, which engages with the inner ring gear 148, which in this weekends primary gear mechanism. Then the force is transferred from the ring gear 148 through another shaft 160 to a sun gear 152 (see Fig.5) secondary complex planetary gear. It should be noted that the secondary sun gear 152 is output to the primary planetary gear and the input to the secondary planetary gear. From the sun gear 152 of the force of rotation is transmitted to the mechanism, consisting of a large deorbiting planetary gears 164, which are not included in engagement with the annular gear wheel at their full diameter, as is happening�t in normal planetary mechanism. Instead, a spur gear 168 attached to each side of each of the planetary gears 164. These spur gears 168 having the same axis of rotation, and large planetary gears 164, protrude through the openings 172 in the housing 176 of the main gearbox, which allows them to transmit the force of the outside housing 176. On each of Fig.5 and 6 shows two such combinations of spur gears and planetary gears.
On the outer side of the casing 176 spur gears 168 are engaged with a large ring gear 180, which is attached to the cutting drum 112 either directly or through an intermediate inner drum (not shown) which in turn is attached to the cutting drum 112. The cutting drum 112 rotates relative to the ribs 198 on the housing 176 of the main gearbox. Between the ribs 198 and the cutting drum 112, and between the different gear wheels and their supports has appropriate bearings (not shown). Force transmitted from the cutting drum 112 is converted into cutting effort to ensure the dredging of the material by means of cutting teeth 188.
The axis of all the above-mentioned gear wheels fixedly mounted �otnositelno casing 176 main gearbox. Each gear wheel can rotate, but it otherwise does not revolve around another gear. For example, none of the planetary gear does not rotate around the sun gear. Fig.6 shows one of the supports 192 for fixing the primary planetary gears to the casing of the main gearbox. In addition, in Fig.5 and 6 shows a support 196 for secondary sun gears, and a support 197 for spur gears 168.
In the above-described embodiment, the gear ratio from the motor shaft to the secondary sun gear is less than one. In other embodiments (not shown), which do not require reduction, the motor shaft could lead directly into rotation of the sun gear 152.
Various other features and advantages of the invention are evident from the accompanying claims.
1. Unit for the development of the ore bed comprising: a motor having a shaft,
the cutting drum mounted on the frame, for removing aggregate material from the ore bed, and the cutting drum contains the specified engine and attached to the ring gears,
primary planetary gear mechanism linking the engine and cutting drum for transmission of force from DWI�Atelier to the cutting drum and including a sun gear, coupled with a shaft for transmission of planetary gear wheels, meshing with the internal ring gear wheel, and
the secondary planetary gear mechanism including a sun wheel, receiving the force from the annular inner gear and the transmitting rotational force porbitals planetary gears, and the spur wheel attached to each side of each deorbiting planetary gears, each spur gear meshing with a ring gear attached to the cutting drum.
2. The Assembly according to claim 1, further comprising a casing of a gear box mounted inside the cutting drum containing said engine, and spur gears protrude through the holes in the specified casing to be transmitted beyond it.
3. The Assembly according to claim 1, in which the spur gears have the same axis of rotation as their corresponding neornithine planetary gear.
4. The Assembly according to claim 1, containing also the additional engine.
5. The Assembly according to claim 1, wherein the inner ring gear connected to a sun gear of the secondary planetary gear mechanism through the shaft.
6. Mining machine, comprising: an arrow
the two longitudinal wall�, located at a distance from each other, and a cutting head connected to the boom longitudinal walls, and including
- the engine having a shaft,
- the cutting drum containing said engine and attached to the ring gears,
- primary planetary gear mechanism linking the engine and cutting drum for force transmission from the engine to the cutting drum and comprising a sun gear wheel connected with a shaft to be transmitted to the planetary gears, meshing with the internal ring gear wheel, and
the secondary planetary gear mechanism including a sun wheel, receiving the force from the ring gear and the transmitting rotational force porbitals planetary gears, and the spur wheel attached to each side of each deorbiting planetary gears, each spur gear meshing with a ring gear attached to the cutting drum.
7. Mining machine according to claim 6, in which the longitudinal walls have holes for the passage of electrical and conductive lines for supplying electricity and engine cooling.
8. Mining machine according to claim 6, in which the spur gears have the same axis of rotation as their corresponding porbitals� planetary gear.
9. Mining machine according to claim 6, also containing an additional engine.
10. Mining machine according to claim 6, further comprising a casing of a gear box mounted inside the cutting drum, and spur gears protrude through the holes in the specified casing to be transmitted outside.
FIELD: mechanical engineering.
SUBSTANCE: pulse rotator of a machine working attachment comprises a rotary actuator, a drive and driven shafts, a cam, a pusher. The shafts of the driven and driving gears are made parallel. The cam is made as a circular tooth profile of the drive gear, and tooth cavities in the form of a recess performing the role of the pusher are made on the driven gear. Tooth thickness is selected based on the relationship: S=30·d·ω/p, where S - tooth thickness of the driven gear, d - diameter of the driven gear, ω - angular velocity of rotation of the driven gear, p - frequency of oscillation of the given work process. The maximum value of the inclination angle of the recess is chosen based on the relationship: α=arctg f, where α - angle of inclination of the recess, f - friction coefficient of the cam and pusher kinematic pair.
EFFECT: improved operational reliability, efficiency and service life of the pulse rotator operation.
SUBSTANCE: invention relates to minerals industry, particularly to treating combines for selective concavity of heavy, predominately potassic layers with rock interlayer. Combine for selective concavity of heavy potassic layer with rock interlayer includes casing, on ends of which there are mounted with ability of rotation in vertical plane two handles, each of which is outfitted by integrated rive and screw, and additional cutting block. Additional cutting block contains handle with integrated drive and screw, and is rigidly fixed to casing of combine. Fixed on body basis of cutting block is pivotally connected to carrier and hydro- thruster climbing of handle, which is rigidly connected to slider, installed in guide groove of carrier with ability of displacement with handle to bottom for value not less than width of screw, diametre of which is not more than power of top layer. Additionally end main screws of combine are implemented with diametre of not less than half of power of more heavy layer of stratum.
EFFECT: effectiveness increase of selective concavity of heavy layer with rock interlayer independently from capacity of the latter.
SUBSTANCE: invention relates to mechanisation facilities for underground selective concavity of thin predominately potassic layers by treating combines. Combine for selective concavity of thin layers of minerals includes body, at ends of which there are mounted with ability of rotation in vertical plane two handles, outfitted by agreeably integrated drive and screw with loading shield, and carrier. One of handles allows rigidly fixed on it slider with ability of displacement of it with handle in guide channel of carrier to bottom for value not less than width of screw, diametre of which is not more than output of rock layers of roofing, located at break between bottom and transporter. Screw of other handle is implemented of diametre not less than half of total power of fall rock layers of roofing and mineral.
EFFECT: design simplification of combine, decreasing of its weight and reliability improvement in operation at selective concavity of thin layers with coal-cutting with stone of roofing.
SUBSTANCE: group of inventions refers to mining, particularly to miner for excavating beds of minerals. The miner for excavation of beds of minerals with rock inclusions, notably, of coal beds, consists of case 22 with electrical 2 and hydraulic 3 blocks arranged on the case, of control panels 4 and 5 of the hydraulic blocks and of mechanisms 7 and 8 for miner advance; said mechanisms interact with a pin bar 10 of conveyor 9. Also the miner consists of at least one handle 15 swiveling in vertical plane and assembled at the end of case 22; the handle is equipped with actuator 23 for mineral cutting; the actuator is driven to rotation by means of engine 17 and reducer 18 placed inside handle 15. Also the miner is equipped with main mechanism 24 installed between handle 15 and case 22; the main mechanism advances handle 15 onto a face at destructing of rock inclusions and it is equipped with facility 25 for maintaining the miner immobile, when actuator 23 is cutting rock inclusions.
EFFECT: high efficiency of mineral excavation.
16 cl, 20 dwg
FIELD: mining industry.
SUBSTANCE: combine has main body, drive, feeding mechanism and executive tool, which is made in form of drum with horizontal rotation axis. It is placed at non-straight angle to longitudinal conveyor axis and is turned in horizontal plane in direction providing for displacement of trajectory of coal output towards conveyor. Drum has cylinder, on outer surface of which in certain order cams with cutters are fixed. Inside the cylinder three or five electric engines are placed. These are inserted in parallel in recesses of fixed body with inner teeth of sun ring of planetary gear, which interact with three satellites. Output shafts of three or five electric engines interact with one common cog-wheel. It is placed coaxially with planetary gear and engaged with it by torsion shaft having two cog tail pieces. One of tail pieces interacts with inner slits of wheel hub, and another interacts with teeth of three satellites of planetary gear. Mechanism for hoisting drum mechanism along bed massive has handle raising jack and handle with horizontal rotation axis placed in horizontal plane at non-straight angle to conveyor axis and turned to direct displacement of executive tool towards pit-face. Shoes of stability mechanism for combine are provided with reverse clamps for shelves on front pit-face and back dump sides of conveyor. Back support of conveyor on soil is placed on dump end of inter-section beams. Combine feeding mechanism has drive for chainless feeding system and leading sprocket. Sprocket interacts with fingers of conveyor rack. Drive is placed beyond handle of executive tool and is made in form of separate electric engine with reducer of self-braking worm type. Engagement of sprocket with fingers is guaranteed by reverse clamp of reducer engaging back planes of conveyor rack carrying these fingers. In method for loading coal on conveyor, drum rotation axis in plane around vertical axis is turned in certain direction to turn trajectory of coal towards conveyor. Movement of mining drum along conveyor is performed first along ceiling, and then along soil along coal output direction while providing for cleaning of soil in direction of frontal movement of conveyor to pit-face.
EFFECT: lesser dimensions, lesser mass, higher quality of operation.
SUBSTANCE: method involves positioning of an automated complex for deep development relative to the working face considering the direction of ore bodies settings. Control of mine rock parameters is performed by means of control sensors of physical and mechanical characteristics of mine rocks for adjustment of a mine rock cutting force considering rotation speed of a working element and movement speed of the working element in a vertical plane throughout the cutting depth and cutting direction by means of hydromechanisms of telescopic retraction and a turning mechanism of the head section. Width of capture of the ore body plane in a horizontal direction is provided by means of the positioning mechanism of the complex relative to guides; with that, information on circuits of destructed mine rock is sent from control sensors of mine rock circuits to a system control unit.
EFFECT: increasing productivity, improving reliability and enlarging technological efficiency of destruction of rocks of different strength and coherence degree by controlling a cutting force in a zone of processing and formation in a surface layer of the processed massif of destruction zones considering strength characteristics of rock.
2 cl, 3 dwg
SUBSTANCE: rock massif is disintegrated in crosswise direction by heading-and-winning machine planetary-disc actuators It is performed by serial intersecting cuts in radial-tangential and tangential-radial directions made by cutters of disc running in opposite directions. Said discs are set at the angle to plane formed by cutter lengthwise axis and radial direction relative thereto.
EFFECT: decreased working forces of hearing and wining machine.
2 cl, 3 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to continuous-operation headers. Header cutter comprises support element, extensible cutting head arranged at support element front end with central main part and at least one extensible drum part arranged at butting head end outside in axial direction from said cutting head main part. Extensible drum part has axial inner end abutting on cutting head main part. Axial outer end comprises inner end structure secured to cutting head main part and outer cylinder secured thereto. Inner cylinder secured to said inner end structure is located inside outer cylinder and aligned therewith. Extensible cylinder has inner circular expanded end with the part located between said inner and outer cylinders. End cover has ledge accommodating inner cylinder outer end aligned therewith. First and second spaces are formed between said cylinders. When fluid flows through said spaces extensible cylinder displaces to pulled or pushed position.
EFFECT: drum part that features extension and locking forces higher than those in usual cutting heads.
3 cl, 6 dwg
FIELD: oil and gas industry.
SUBSTANCE: heading machine contains actuating device, support lifter, caged platform, electric equipment, control post, feeding mechanism, conveyor and chassis. In pivot mechanism located at chassis and driven by swing hydraulic cylinders spherical roller bearing is installed at bearing axis inside two-sided plain thrust bearing. Plain thrust bearing consists of assemblies (two at each side) segments in circumferential direction; segments are made of wear-resisting steel and are fixed by sunk screws.
EFFECT: decrease in dimensions and increase in service life of heading machine.
FIELD: oil and gas industry.
SUBSTANCE: heading set of equipment includes heading machine with actuator device fixed at it by timberer with hold-down beam and spacing cylinders. Turning shaft at hold-down beam is equipped with turning mechanism at the machine conveyor. Manipulators are equipped with drilling and anchoring tools with permanent anchorage. Hold-down beam is equipped with sliding telescopes; manipulators with permanent fixtures are fixed at sliding telescopes of the hold-down beam. Turning shaft is made as load lifting telescopic boom with lifting and spacing cylinders. Hold-down beam at carry does not protrude beyond machine dimensions.
EFFECT: improving reliability of timberer, reducing errors at erection of permanent anchorage, increasing mobility and expanding scope of application both with minimum and maximum draft size.
5 cl, 3 dwg
SUBSTANCE: method involves uniform destruction of rock mass with continuous cross cutters of cycloidal direction with working tool of planetary flat disc actuators and of tangential direction with working tool of rotary elements. The latter are installed behind front and rear parts of the disc and fixed on reduction gears of planetary flat disc destruction elements.
EFFECT: increasing rock mass destruction efficiency using cross cutters.
2 cl, 3 dwg
SUBSTANCE: method is implemented due to destructing the working face with cross cutters using rotary and planetary disc working members with lower power consumptions and yield of small ore fractions. In order to improve the efficiency of cross cutters, rock-destructing tool of planetary disc members moves in cycloidal-radial directions.
EFFECT: higher efficiency of destructing processes of mine rocks using heading-and-winning machines with cross cutters.
2 cl, 2 dwg
SUBSTANCE: tunnelling machine actuator comprises a boom, a dispensing reducer and two breaking-loading crowns, axes of which are parallel to the longitudinal axis of the boom, the direction of their rotation is mutually opposite, and the body of each breaking-loading crowns is arranged in the form of a truncated conical surface combining a smaller base at the side of the bottomhole with a larger base at the side of the dispensing reducer. On the outer surfaces of bodies of breaking-loading crowns there are trihedral prisms installed with disc tools as capable of covering trajectories of movement and reversing rotation directions.
EFFECT: higher efficiency of mine tunnelling by combination of breaking, grinding and loading processes in a tunnelling actuator.
6 cl, 11 dwg
SUBSTANCE: mining tunnelling combine comprises a displacement mechanism and a boom or a frame. On the frame there are at least two rotary cutting heads and two cutting rollers. Axes of cutting heads rotation pass in direction of tunnelling or are arranged at the sharp angle relative to tunnelling direction. Two cutting rollers are installed in parallel and behind the cutting heads, and may be arranged on the foot and on the roof, accordingly. Both cutting rollers comprise end sections capable of sliding to the profile width to form a substantially rectangular profile of cutting. At the same time each cutting roller is separately hingedly connected with the boom or the frame with the possibility of height adjustment, and each cutting roller has a diameter corresponding to at least one fifth of diameter of cutting heads cutting.
EFFECT: formation of a rectangular profile of a tunnel by a mining machine, exclusion of operation to remove curved profiles, higher safety.
5 cl, 5 dwg
SUBSTANCE: The invention relates to mining, in particular, to design of operating element of a mining machine. The operating element of mining machine for coal extraction in formations with hard inclusions comprises a revolving gear and a cutting section installed on rotatable output gear shaft. A power transmission which rotates the output gear shaft of this revolving gear is installed inside the frame of revolving gear. The cutting section receives power pulses from unbalanced vibrator positioned inside of it. The cutting section is kinematically connected by coaxially positioned outer and inner torsion bars with output gear shaft and unbalanced vibrator respectively. The unbalanced vibrator is actuated through inner torsion bar. There is an additional transmission installed inside the frame of the revolving gear, which is positioned in parallel with the power transmission or the output gear shaft. This additional transmission rotates the inner torsion bar relaying the rotation to the unbalanced vibrator.
EFFECT: reduced size of operating element while retaining efficiency of extracting thin coal layers with hard inclusions.
5 cl, 4 dwg
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