RU2002967C1 - Hydroautomated complex support - Google Patents

Abstract

Hydraulic complex support. Use: fastening treatment faces. SUMMARY OF THE INVENTION: A hydraulic support comprises interconnected sections. Each roof support section consists of sub-sections connected by jacks - internal and external covering it. The latter includes side beams connected to the side of the conveyor bridge. One is located on the inner subsection, and three water pillars on the outside. The overlap is formed by the middle and two extreme tops with elements sliding out from the following hydromechanisms. The extreme tops are located on the hydraulic pillars of the side beams and the crossbar mounted on the hydraulic pillar of the conveyor lintel, and the middle upper ones are located on the hydraulic pillar of the internal subsection and on the crossbar in the guides of the hydropatron, which compresses the upper chambers when the lining supports The hydraulic system contains two pressure lines: one for an odd group and a group of even sections, spring-loaded spools connecting all hydraulic actuators to the discharge and drain lines in accordance with the time-phased sequence of operation of these drives when moving subsections. The stroke of the rods of the jacks of movement is less than the width of the capture of the coal-mining body. The movement cycle includes unfastening three racks of the external subsection, moving the latter forward to the bottom by the amount of jack travel, separation of the three racks, unfastening the hydrostand of the internal subsection, pulling it to the outer subsection and the frame of the hydrostand of the internal subsection. This cylinder is repeated so many times. how much the stroke of the ram jacks is less than the width of the szx (it is of a coal-producing organ. A roller is installed on the cantilever front part of the upper tops; for hanging the idle / upper / loop of the conveyor chain. The hydraulic rack rods can be installed on the plungers freely. Hydraulic stands and hydraulic mechanisms of the sliding elements made single acting with polarity springs 12 ip / -N K1 VЈ V. No. & S9t V (

Description

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Mining (mining refers to the extraction of minerals by underground mining, namely, to the accumulation of mines with hydro-agglomerated complex supports working with a new type conveyor, with any method of coal extraction, for any roofs and soils of horizontally inclined formations with a capacity of , 4 m and bopeo.

Mechanized supports for supporting and protecting-supporting hypoeids are known, consisting of sections that are pulled to the head of the carpet during moving with hydraulic jacks, ceilings, top, visors, bases, spreader gates and fences.

However, such mechanized roof supports contain organic flaws that do not allow solving the problem of hydraulic support in the technical process of coal mining, which means increasing labor productivity and its safety during uninhabited mining of coal in the lava. In the applied constructions of all types, roofing rock maintenance following the excavation is carried out by one of the same overlapping, top, visor, they are released and move under the rock that has just been exposed by the excavation, which leads to violation of the monolithicity of the rocks, deprived of backwater, and contributes to an increase in the spin of the spin, and, consequently, to the occurrence of collapses of the breasts of the bottom, cake, cupola, dumps, not only opposite the cut by the combine, but also along the entire length of the front leg, as a result, labor intensity and danger are increased and reduced productivity mining.

The movement of the ceilings of the upper roofs, peaks under the exposed roof by the combine is possible only after passing through its body and in a sequential order, which contributes to the collapse of the face, the coring, the formation and dumping of the rock, and not the preservation of its solidity,

Based on organizational work and the uneven interaction of the structure with the soil and the roof covered with awnings, the movement of sections with residual support-thrust without loss of contact is practically impossible.

The step of movement equal to the width of the tape taken out by the combine during sequential movement of the sections does not allow expanding the functionality of the lining, creates overlapping intersection gaps, which is associated with clogging of the rock and coal in the space inside the section.

Moving jacks are located on the side of the section of the inside of the beams, which are articulated with a chain conveyor, which does not guide the support sections when moving them, but destabilizes the process of pulling up the sections with roof support.

There is no stability of the lining on an inclined dip of the formation, namely, it shuts off the shaft, and the conveyor slides, so the guide beams pivotally attached to the conveyor stand cease to be guide, therefore additional special devices are required to hold them.

The tilt of the gutters to the side towards the hinges when they are hinged with ceilings, tops, peaks and bases in case of movement without loss of contact with the newly exposed rock of the roof leads either to blockage or to jam, especially at an inclined dip of the formation.

The newly exposed roofing rock following the excavation in the area above the combine is not supported by anything.

In order to pull the sections to the conveyor head and move the conveyor to the bottom of the front line, it is necessary to eliminate manually the consequences of the collapse of the side, cake, dome, rock outburst aggravated by extraction.

The bases of the sections, elongated under the conveyor stand, are pressed into the soil of the formation by the body of the combine during its movement along the conveyor stand, which creates significant difficulties during movement.

The insufficient size of the area of the base of the sections and the inability to develop it to the sides leads to drowning in the case of weak soils of the coal seam.

The dimensions of the ceilings and visors used in existing supports, lead to an increased manifestation of the spin, and as a result, to shortening, bathing, collapses of the breasts, and behind them and rocks falling out of the roof, destruction is blocked by falling pieces and blocks, which leads to bloating of the hydraulic pillars.

The purpose of the invention is to expand the functional and operational capabilities by fully automating the processes of moving, remotely controlling from a single remote control using any extraction method, reducing the complexity of maintenance work and increasing labor productivity.

The goal is achieved in that a re-automated complex support, consisting of autonomous sections that do not have a conveyor stand with the ability to move independently, each

of which it is made of two independent preferences of the inner side from the side of the rubble on the bottom of the first pile and the first are connected with a small step with a small step of interchange. and, in addition, the subsections are equipped with 1 fill and days from the beginning of i. with OoSov, in the passage along KOMtnei Cv from the rear of the door, with doors with bars over the scraper chain and in the raised polo, they block the door in the closed oide. Each of the outer sections has side beams spanning k1 a to guiding the internal subsections and rigidly connecting the aegis of the beam co-evening jumpers from the side pig op rng n e d ° ° 5- an h i

rivaki hhln | and. hectare, 1nl i-ijLi. water-resistant feature one of which is tall from the internal Podsch WPCs and others from those external to THIUU bom G-D in the correcting beams with (lorochki and the rest - but i - i e p h i shift along the axis of the symphic chichno zzch 1 subsections on one l / nip ppl jc s. t d

RESISTANT TO THE INTERNAL P J J P P RG H, itt-i 1

each sub-section (t-n, spit h two extremes / tegssg-opi yuschih mounted on g rststoy-s chg og OPORNOU KNOV PP) TOM SRRD1 L1G g G

nkr, protected by a blockage / installed on, spectacle points and subsections, a ncr Y iiM dzymimodi Ti hydroponic tronam h | 01grpuch-n .. max in its average n goggly R i hydraulic stand Koii tH ° nii ix nepCv jCK g

HELP / REMEDDED SUPPORTS Krychk 5 b {rch

ni, reversed ic, based on g and gposts and shoks to and directing batkas external / noiceic- tions, and front / iti goniapi, , to the slaughter, “n nonvrjt-y tops are reliably reliant on the element w pdg. - breed breed croor H o ch h 1 mgo installed with and after the h / g nostyy vyvidrg 1 n I take off the load from the factory in the axis, rom mechanisms p g, t - tich g capture of the combi prpchg with poti-ppch. abutting in ipy.i1, this LCC is equipped with a common ilrg C1 sts 11 i in the ohmic control of tiv gidpes about kamp, and, - home delivery and rv4r, fOfeyr M M f1

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hard-wired; mi bplkp conveyor-a clearance gaps; 1 with empty subsections 2

we pyreichykh 8, made by eating roma-zakrypa vyre ikelny zlesgich-tmi diafzbbo about vpdo complaint 7 for working scraper-rzgmymi: 15 with ignition and bottomhole

sing the chains П (figs. B and 10), 5 - (fig. b, 1 and 3).

 la subsections 1 and 3 are non-selectable All subsections 2 and 3 are equipped with solid-vertical verti cals with spacing hydrostatic fencing mm - lateral 37, about 3

9, 10. 11. 12, one of which is located tunnel 38 pass throughout

on the back side of the non-snubby sub-complex, the back BOs with the bottom stop x} .. G l {.-and other I). 11: T2 m-.e n ruzhnmkh1.0 pi and front -10 from the side of the NSF. Odpodoektsi x 3, one by one on KOi-tsakhry chde 1i 40 performed in 41

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: prices: П,; г-к, f; o-; i.i iM. m-3- (chmg. P p 11).

GNL.G. PSLOYKOKH 9; (UTG; -: IH.; KTSIY I, aEGZ g D: YUS -: PT6iv; D.;. T: GGr L1-.prosrod ;;; -., Tg, o5r ; 1 annm-.N to adieu, lo-30 pulps of 25 dislocation oops,: hl and

zhot: ;;; hydrp-ltromph 17 in 1: apr; zEll.h ,; Khkomg Locom. i.k; wasps 2. s / qi; uy 22 and nagnepromykh / yudhDgWhat N, gn /. RZP SNPA:: vm ;; lm about 9.; gi :: triplets, s ta; okЈ two nuggies of average y. umdrosgoyk um 10 kok-tatslnyl mig igralm 23 m x--) launcher

t y-zlop (, 35 even, e dp3131 (, A} with N CHY SCHOOL and the city of SecdekKraGtnio ovrhmki; and 15. o6p3u.iciii; b Scylmi 2 and 3 (Fig. 3). to the blockage of ko (namm, ota -; 0 tapes on the hndro-On the remote control there are also spool

racks 11 n 12 lateral - r p; avlpyui.ilh ba-switches 25

Lock 5 of the outer subsections 3, about the fore-and-honor and honorary subsections 2 and 3, rely on the back of the table 18 .. 10Inserted in the channels 26 pt 39 psdruzhy Each kerch. 13, A and 15. Stocked spools 27, 28, 2Q, 30, 31. 32, 33,

elements 19 support roof rocks 34 and 35, connecting automatically

Following Zyamkha, they are established in their mode of discharge 22 and discharge 19

bridges x with the possibility of extension in the hundred-highway working cavity hydrostatic to 9,

to the breast, from the built-in jacks of these 4510, 11 and 12. jacks / 1- and cantilever mechanisms of the following tydromechsnizgzdv 20, 20 and 20 and sovereigns with a maximum aftergrowth exceeding that of the harvester, before their work in progress

moreover, the ends of the elements 19 are constantly on-moving subsections 2 and 3 of the complex to

the course of the vehicle under pressure and the chest of the head along the entire front of the front paw (Fig. 11). the front of the complex lining, 50-Zolotniki 27-35 control yugiug

8 sub-sectional designs 2 E3 complex-.digital cavity 38 connected to

I support the delivery of coal along the bottom by the front-working cavities of the listed hydroforms made by one scraper chain of drives 4, 9, 10, 11, 2 and 20, 1-; each before 8 by placing its bottom cantilever-going ETZP in a cycle of moving groups

t x upper racks 14 and 15 and the outer subsections 55 of subsections 2 and 3 (Fig. 11}. 3. On the brackets with 44 dl / d rollers, springs 27-35 are configured

sewing a single branch, which has performed a certain amount of calculated two-row pressure, open on all sides of the iris in the working cavities of the aforementioned lines with scrapers. Upper 13, 14 and 15 of water lines 4,9,10,11.1 and 29 according to

mounted so that within the subsection-sequence they are connected to work. The stroke of the hydraulic jack rods 4 is less than the capture value of the combine by a multiple of times, for example, four.

The hydraulic struts 9, 10, 11, 12 and the hydromechanism 20 of the sliding elements 9 are single-acting with return springs (not shown), which greatly simplifies the overall hydraulic system and its automation. The rods of the hydraulic struts 9, 10, 11 and 12 are mounted on their pistons without mechanical connection, which greatly simplifies and facilitates the process of installation and dismantling.

The hydraulic system of point 39 contains check valves 47, through which the hydraulic stands 9, 10, 11 and 12 are spaced, spools 27-35 ciuiO / .coiib manual control unit for manual autonomous installation for adjustment and movement in stand-alone mode with any subsection 2 and 3 (Fig. 11).

Starting group spools 25 are located on the central control panel of the complex (Fig. 13), and starting pulse spools 27 and 31 are located in channels 26 and 39 of all subsections 2 and 3 of the complexes, unlike other spools, valve spools 27 and 31 are provided with two control hydrocavities 36 and are spring-loaded, which allows at any time of the coal mining process to independently move subsections 2 and 3 forward or backward along the stem stroke (Fig. 11).

The movement of subsections 2 and 3 of the complex in the direction of the coal column is as follows.

In the initial static position of the complex, before moving the hydraulic stand 9, 10, 11 and 12, the bases and tops 13, 14 and 15 are bursting between the roof and soil, the support elements 19 are pulled out from the tops 13, 14 and 15, and abut against the face contact of the roofing layer, since they are under constant pressure of the following mechanisms 20 (Figs. 4,5 and 6).

In hydrostations 10, 11 and 12 of subsections 3, the spool operator 25-27 relieves the pressure, at the same time, the operator switches to the discharge of the hydraulics 17, as a result, the extreme tops 14 and partially weaken the pressure of the rock of the roof of the coal seam, along with the spools 29 include the hydromechanisms 20 of the sliding elements 19 for draining, the hydraulic jacks 4 are turned on by the slide valve 28 and the subsections 3 are moved along with the hydraulic pillars 10, 11 and 12 and the extreme tops 14 and 15, sliding along the roof rock, without loss of contact, with little spread rovli gidrostoykami 10, 11 and 12 at the pitch equal move hydraulic jacks 4, with

this, the chipping ends of the retractable supports and the roof, thus sliding them into the upper 14 and 15. The subsections 3 are moved.

5 Then pressure is applied to the hydraulic stands 10, 11 and 12, they are spaced between the roof and the soil of the formation, after which the pressure is released from the hydraulic stand 9, the pressure of the roof is transferred from the upper 13 0 to the upper 14 and 15, and therefore to the hydraulic stands 10 11 and 12, the jacks 4 are turned on and subsections 2 are pulled to fixed subsections 3 when the middle wall 13 slides along the roof without a loss of contact with it and when it is steadily pulled up by the end of the retractable cloth 19 into the corner zone of the formation -blood thus sheltered it at the top to 13.

0Subsection 2 subt, occurs

spreader (Fig. 11). The described cycle of moving subsections 2 and 3 of the complex is repeated as many times as necessary to overcome the width of the removed coal strip.

5 Despite the fact that the chipping ends of the sliding elements 19 are constantly pressed into the area of the layer-roof, due to the backing reinforced from the following hydromechanisms 20, the movement of the subsection 2

0 and 3 occurs unimpeded, since the efforts of the hydraulic jacks 4 significantly exceed the drainage forces of the hydraulic mechanisms 20, the characteristics of which, along with the drain holes, are selected in an appropriate way.

The described moving operations are based on the law of hydraulics about communicating vessels, therefore, removal or supply of liquid under pressure in the appropriate order in the cavity of the hydraulic mechanisms in subsections 2 and 3 is carried out without the participation of the operator (except for the supply of the initial impulse of movement) automatically using spools and valves located in the channels 26, heels 39 of the hydraulic stands 9, 10, 11 and 12 (Fig. 11).

The movement of subsections 2 and 3 is controlled by an operator from a single remote control; oolnikiko 25, constructed in such a way ofi0 at a time that allows the movement of.-nig subsections 2 and 3 of the integrated lining not only with a checkerboard pattern, but also of all 2 hex 3 pieces together (Fig. 3).

The device of hydraulic automation of movement operates as follows: (Fig. 11).

Inside subsections 2 and 3, an overpressure of 49–24 passes through the entire complex. 24 discharge pipe 22 lines from pumping CIVMs 21. Cavities of four hydraulic posts 0. s;

11 and 12, after expansion, they are automatically disconnected from the hydraulic line by valves 46. Two hydraulic lines 23 and 24 of the starting impulse pass from the control panel, receiving liquid under pressure from the pressure 49 of the hydraulic line and connected to subsections 2 and 3 to sections 39 through zlotniki 25, controlled by the operator. The trigger pulse for the even or odd groups is supplied by the discharge lines 23 or 24. The operator shifts the spools 25, by which a pressure pulse is supplied to the spools 27, through which the automatic movement of subsections 2 and 3 of the entire complex is activated.

The shift of the spool 25 to the side odd or even leads to the movement of the corresponding groups of the complex to the bottom. When the spools 25 are controlled simultaneously from the remote control (synchronously, then it moves with the whole complex at once along the entire front-lava (Fig. 3.11).

When the spool 25 is connected by the operator to the impulse discharge line 23, the control cavities 36 of the spools 27 are connected. They open and communicate the cavities of the hydraulic stands 10.11 l 12 with the control cavities 36 of the spools 28 and 29, the latter are activated. The spools 28 provide a drain to the line 22 and the pressure is supplied to the cylinder cavity and the lower hydraulic jack 4, through the spools 35 there is a drain to the line 22, while the spool 29 provides a drain from the following mechanisms 20, the upper 14 and 15 (Fig. .eleven).

The spools 28 provide a fluid supply under pressure to the cylinders a of the lower hydraulic jacks 4 and are activated by reducing the pressure in the hydraulic pillars 10t 11 and 12, The spools 29 provide a drain from the hydraulic mechanisms 20 of the upper 14 and 15 when moving the subsection 3, the spools 29 also act by reducing the pressure in hydrostands 10, 11 and 12. Such interaction of the spools 27. 28 and 29 in time provides an automatic sequence of operations to release the hydrostations 10, 11 and 12 from the pressure before moving the external subsections 3 with a residual Hur, the size of which determines the system itself automatically. During the movement of subsections 3, the elements 19 move to the tops 14 and 15, and the spools 29 provide a drain from the hydromechanisms 20. The decreasing pressure in the hydraulic stands 10,11 and 12 relieves the hydraulic support of the spools 29, which, under the action of the spring, move and connect the cavities of the hydromechanisms 20 , the upper tops 14 and 15 with a drain 22. With a further decrease in the hydraulic support, the spools 28 are activated and the cylinder cavity of the lower hydraulic jack 4 is connected to the pressure line 49. The liquid displaced by the rods of the lower hydraulic jacks 4 presses a fluid cylinder cavity upper hydraulic jacks and drives the pistons in synchronous movement with a bottom, and a starting position of spools 35 provides a fluid drain from the rod end of upper hydraulic jack 4 into the line 22 (Figure 11).

Through the check valves 46 a, the cylinder cavities a of the lower hydraulic jacks 4 are connected by the control cavities 36 of the spools 33. The initial position is that the springs are free. When the springs are compressed, they perform the functions of spreading the hydraulic struts 10, 11 and 12. And in the initial position, they spread the hydraulic struts 9 of subsection 2. When the pistons of the lower hydraulic cylinders 4 select the entire stroke. stops, the movement of the external subsection 3 will stop, however, the pressure in the cylinder cavities a continues to increase to the size of the pressure line 49.

A necessary condition for the operation of hydraulic automation is that the check valves 46a are configured to operate on a pressure exceeding that required to move the subsection 3.

From under the valve 46, a pressure enters under the spool 33 and compresses its spring, moving the grooves of the spool 33 connect the hydraulic pillars 10, 11 and 12 to the spacer, the same pressure passes through the spools of the spool 33 through the channels 36.

During or at the beginning of the spread of the hydraulic struts 10, 11 and 12, the operator, guided by the pressure gauge 48, relieves pressure from the spring-loaded valve spools 27, which returns them to their original position, if he did not.

The final spacing of the hydraulic struts 10, 11 and 12, guaranteeing movement, returns the spools 28 and 29 to their original position. The spools 29 connect the hydraulic mechanisms 20 of the sliding elements 19 from the tops 14 and 15 to the pressure line 49. and the spools 28 connect the cylinder cavities a to the drain 22. Valve 46 a provides a reliable support of the compressed springs of the spools 33. This completes the stage of moving subsections 3

Thus, the spool 33 with its groove connects not only the expansion channel of the hydraulic pillars 10, 11 and 12, but also the second channel

connects 36 spools 32 to the controlled cavities 36. They move and compress the spring at the moment when the strut of the hydraulic struts 10, 11 and 12 is also completed. The grooves of the spools 32 connect the pressure channel 49 to the channel of the valve spools 31, the spring is compressed, the valve opens to drain. The controlled cavity 36 of the spools by 31 channels is connected to the spools 30. 35. As in the previous case, the operation of the spools is carried out according to the law of communicating vessels.

The second stage is the movement-pulling of subsection 2 to subsection 3.

The spools 32 are actuated at the moment of reaching the maximum pressure of the hydrostatic discharge 10, 11 and 12, which provides guarantee conditions for pulling up subsections 2 and 3, then the spools 32 of the spools are moved, compressing the spring, opening the valve spools 31, which are connected to the channels cavities of hydraulic racks 9 and control cavities 36 of spools 30 and 35. Spools 30 and 35 operate simultaneously. The spools 30 are activated by relieving pressure in the working cavities of the hydraulic struts 9. The spools 30 of the spools move from the pressure of the compressed springs, connecting the cavities of the following hydromechanisms 20 of the upper 13 to the drain line 22.

The spools 35 also operate from the pressure removed in the hydraulic stands 9, the spool rods 35, having moved from the compressed springs, connect the rod cavities of the upper hydraulic jacks 4 with the pressure line 49 with their grooves, while the cavity of the lower hydraulic jack 4 is already prepared for draining with spools 28. Sub-sections 2 are pulled up to sub-sections 3. During this retraction, the liquid is forcedly drained from the hydromechanisms 20 of the tops 13 due to the sliding of its elements 19.

When the pulling of subsections 2 to subsections 3 is completed, the pressure continues to increase in the rod cavity of the upper hydraulic jack 4, the pressure rises in the channels 26 connecting the spools 34 to the control cavities 36. In the spools 34, the spring is compressed, the grooves provide simultaneous discharge of fluid from the control cavities 36 of the spools 32 and 33, their rods return to their original position, in which the spools 32 provide closing of the spool valve 31 (the spring presses the valve against the seat), and the grooves of the spool 33 through channels through fluid pressure

through the valve 46 into the cavity of the hydraulic struts 9, their spacer begins, which compresses the springs in the spools 30 and 35. which returns them to their original position, namely: the spools 30 supply pressure to the hydraulic mechanisms 20 of the upper 13, and the spools 35 are connected to by draining the rod cavity of the upper hydraulic jack 4 and spools 34. which occupy the initial position. As a result, subsections 2 and 3 of the complex were prepared for a new shift cycle for the stroke length of the hydraulic jack rods 4 (Fig. 11).

A new cycle of moving subsections 2 and 3 of the complex requires a new impulse sent by the operator from the control panel. Valves 47 protect the cavities of the hydraulic stands 9, 10, 11 and 12 from a pressure exceeding that provided for by the calculation.

Hydraulic cartridges 17 (Fig. 8) are connected to the drain for the entire period of movement of subsections 2 and 3 of the complex to the frontal face to the width of the strip of taken-out coal, and to the pressure line 49, the hydraulic cartridges 17 are connected when the complex support is at the stage of expansion between the roof and the soil.

Hydropartridges 17 are controlled remotely or autonomously (not shown on fmg. 11).

Achieving this goal is ensured by the totality of the features of the invention, how a complete overlapping of the roof-based formation is made of three tops with retractable elements installed with constant follow-up abutment of their wedge ends into the chest of the face, which is created in a special way by the hydraulic system of the system with the possibility reliable blocking of the roof rocks after excavation at any time and anywhere in the lava, including during the movement of subsections, the possibility of using any method both recesses with a new way of transporting coal in the lava. In addition, the indicated FUNCTIONING of subsections makes it possible to move the complex lining by the amount of capture of the coal-mining organizational unit in more than one movement, but several which significantly expand the function | the key capabilities of the complex are to carry out hydraulic jacks for moving sweat, with a smaller volume of fluid consumed, to use new solid fencing flooring.

Using the proposed remote control or automatic control system for all stages of transferring: integrated support due to the sequential inclusion of spools and valves

15200296716

placed on the channels and five hydraulic racks, on (56) Copyright certificate of the USSR built on operation from threshold No. 1314089, kp E21 D 11 / 26,23 / 00, 1985. working fluid pressure in the hydraulic cylinder - USSR Certificate of Authorship

pax, also directed to increase pro- 1015701, cells, E 21 D 23/00, 1980.

labor productivity, creation of conditions; 5 USSR Certificate of Authorship

for deserted extraction of coal in the link, No. 1016527, cl. E 21 D 23/00, 1980,

Formula of the invention and their drawer elements in the form of boxes

from rocking with gels at the ends and hydraulically1, HYDRO-AUTOMATED by the following mechanisms, installing an INTEGRATED FASTENER, including avollen inside the ducts with the possibility of ion sections, each of which you half-abut against the chest of the chest, each yen from the outer and inner outer sections are equipped with subsections, interconnected by two brackets with rollers in the rubber-symmetry of the bases, with the help of the 15th lining for the idle running-in movement and containing four four-wire chains and They are connected between racks with supporting types, secured by means of transverse hooks of the MP on the base, and guards, with hydropartridges mounted on the hydraulic guide with fuel and lubricants, which, in order to expand the height of the conveyor lintels, and the upper operational capabilities and along the Shn kp internal subsections are installed from above the safety of services, the possibility of interacting with hydropath subsections, subsections are equipped with additional cross-hooks, external body jacks for reloading, subsections of complex supports with In the first place, under the tops, the putren-reznaya One is used by means of slender and odd subsections, and by obstructed, downhole-impulse hydromaster- and side guards, forming a line with starting valve-spool passage, at the third obstruction by switches and spools with the cavity is made of dverg and folding gratings, which are installed in most of the coffees by placing supporting hydropower stands in the homnapau. In the lower position, the conveyor-2, Krepysh p, 1, characterized by the fact that it has a trough and vertical troughs are made separately from the rods with the position in front of closed yards, and the ability to remove the latter from the casing floor, mounted on the cylinders of the hydraulic struts.

hydraulic ramp there: 1 movement, and qn „,,

 .g 1 °° 3. The support according to claim 1, characterized in that

among themselves about; casing and blockage by means of F. hydrostations and subsequent hydraulic

vom vertical diaphragms, rigidly for mechanisms made of hydraulic cylinders

mounted on adjacent outdoor „

one-way operation with return subsections, the base of the external subsections "springs,

tions are made of conveyor belts - and

a check having a forge / gutter and side 4, Support according to claim 1, characterized in that

beams, rigidly fixed / on the conveyor and subsections, there are two hydraulic jumpers with cjopouw screwed up, three jacks for moving in a vertical plane-resistant to the external bevels according to their symmetry, in which there are subsections one at the ends of the side bars 5 the cylinder and rod cavities of the joints and on the conveyor lintel, and one - in series, on the internal subsection with the blocking stand-5- The support according to claim 1, characterized in that

Rones in one line and in the plane with the hydraulic axis of the hydraulic jack rod for moving the external sub-sections, more than a few times less than the large subsections are made by the Telesco-Juan, ™ of the combine harvester.

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