Method for tunneling machine fixation in predetermined location

FIELD: coal industry, particularly development machines for hydromines.

SUBSTANCE: method involves performing preparation drilling operations along with well flushing in mine ground with the use of several hollow rods provided with cutting crowns; anchoring tunneling machines by fastening thereof to well walls with the use of spring-piston mechanisms provided with anchoring means and connected to hollow rods so that tunneling machine fastening is carried out without rod removal from wells; cutting new ledge after hollow rod removal from well; fixing anchoring member during ledge cutting after hollow rod removal by applying tension to hollow rod in the absence of water pressure in it. Anchoring member is detached from well wall by moving rod to face simultaneously with supplying pressurized water to the rod before hollow rod removal. Spring-piston mechanism acts on anchoring member in direction transversal to well wall. Then the rod is removed from well and the tunneling machine is moved for distance equal to ledge width and tunneling machine fixation operations are repeated.

EFFECT: increased reliability of temporary tunneling machine anchoring during excavation operation performing.

6 dwg

 

The invention relates to the coal industry, in particular the threaded machines for hydrosart.

A known method of keeping mountain excavating machine in a predetermined position, in particular through the gash in the roof framing self-propelled lining belonging to the machine and consisting of three sections, working alternately on the thrust - movement - raspor (see, for example, AIESEC and other Tunneling machines. - M.: Nedra, 1974, - p.36, Fig.22; p.59, .42). This ensures reliable retention of the machine in a predetermined position at its work, including on large (up to 50° - Fig.22 books Ahipara) angles of ascent generation during transmission on the car at this time any reactions from the slaughter.

The effective use of this method is the stability of the roof of the driven working; otherwise, there is kopalnie roof, and therefore, an unacceptably large increase in the complexity of fastening operations of the impossibility of its realization, as is the case in stratum steep drop where the "roof" is coal.

A known way of holding a mining machine in a predetermined position by temporary anchorage in advance the well conducted along the axis of primary production (the book Ahipara and others, p.69 and RIS). When carrying out the production cross section of S1first harvester pumps in stankeviciute, then vibereview on its axis using associated with the machine Central drill rod ahead of the borehole cross-section of S2≪S1then drill rod "pinch" (angeraut machine) in the casing spacer device. Now the machine is fixed in the ongoing development and can perceive workloads.

The advantage of this method is obvious: the machine is certainly held in a predetermined position in the process of slaughter.

However, this method applies to machines, moving only along the axis of advance of the well, i.e. only drilling type, and it should not be used, for example, when conducting a rising diagonal furnace propelled by jetting through the formation of a steep fall from the corner of her rise γ=30° (see Laucou and other Integrated technologies for coal-based dredging." - M.: Publishing House. Bauman, 2000, p.66, 67). You cannot use this method when conducting sublevel drifts in layers steep drop mekhanogidravlicheskijj combines with the Executive of the electoral action (harvesters CMG, GPXH, "Ural-38" for hydrosart). In addition, such a machine must be rastrapati in development before drilling ahead wells for the steep fall of the fastening device is accompanied by the above wood thrown coal, i.e. increasing the complexity of the mounting conducted by you is abode.

There is a method of keeping the tunneling machine in a predetermined position when developing a single ledge of a working body, including preparatory operations drilling with flushing holes in the soil of development by means of several hollow rods with cutting crowns and strained tunneling machine in the wall of the drilled wells with commercially available hollow rods spring-piston mechanisms anerousis element without removing the hollow rods of the wells, and the development of a new ledge after extracting these rods prototype (application for a patent RU №93014499/03 from 19.03.1993 on "the Way of holding a mining machine in a predetermined position, and a device for its implementation"; published 10.03.1995).

Prototype method opens the possibility of creating an easy machine to carry out the development workings, namely sublevel drifts when hydropobic. But does not have a sufficiently high process reliability strained.

The technical result of the invention is to eliminate this drawback, i.e. increasing process reliability temporary anchorage tunneling machine when performing output.

The technical result is achieved in that in the method of keeping the tunneling machine in a predetermined position, including preparatory operations drilling with flushing holes in the soil of development by means of several polystar with cutting crowns, strained tunneling machine in the wall of the drilled wells with commercially available hollow rods spring-piston mechanisms anerousis element without removing the hollow rod from wells and move the tunneling machine after removing these bars, after strained tunneling machine anerousis element hold when developing the ledge hollow tension rod in the absence of water pressure in the cavity, and before removing the hollow rod first output anerousis element from contact with the borehole wall by moving the bar to the bottom, while water under pressure in the cavity, and a spring-piston mechanism affects anerousis element perpendicular to the borehole wall, then pull rod after this tunneling machine is moved by the amount of the ledge and repeat the operation in place at the specified position.

Such improvement of the prototype method allows you to keep the machine when developing the next ledge attached to the soil generation and easily extract the hollow rod from the well before changing the position of the tunneling machine, which increases the reliability of the method. In General, the major task is solved by eliminating gopalakrishna during the preparatory workings with unstable roofs, especially on the seams steep decline as realizacji these proposals do not need to enter in contact with the roof and side rocks any raskrepljajut mechanisms; while the complexity of mounting production decreases.

Comparison of the claimed features of the technical solution with the prototype allowed us to establish their compliance with the criterion of "novelty". The study of other known technical solutions in this field of technology features that distinguish the claimed invention from the prototype, were not identified and therefore they provide the claimed technical solution according to the criterion of "significant differences".

The inventive method is illustrated by drawings, where

figure 1 shows rifled machine in the starting position when viewed from the side;

figure 2 is the same when viewed from above;

figure 3 schematically shows Brouncker in the initial position;

figure 4 schematically shows Brouncker system for its administration after the anchorage of the machine;

figure 5 is given a node M in figure 4;

figure 6 shows the section a-a figure 5.

In the drawings shows 1 - remote control machine, 2 - sliding table frame 3 - frame of the machine, 4 - Brouncker frame, 5 - engine working body (RO) machine, 6 - RO 7 - Brouncker table 8 - hydraulic table feed, 9 - oil station, 10 - crown cutting of Brouncker, 11 - rotator hydraulic crowns, 12 - mechanism anerousis, 13 - rod hollow, 14 - bracket for rod, 15 - coupler, 16 - hour guide, 17 - link rigid rack 16 with feed cylinder 18 - bracket cylinder feeds the, 19 - cylinder feeder, 20 - cavity shaft, 21 - well, 22 - locking valve cut, 23 - valve feeder, 24 - valve valve, 25 - valve with hydraulic drive, 26 - hydroline water, 27 - cavity rod, 28 - flange 29 - finger hinge, 30 - anerousis element (rod), 31 - spring 32 is a piston 33 to the axis of the rod 34 to the cylinder chamber "drilling", 35 - hydroline discharge of oil, 36 - cylinder chamber "at checkout 37 - boring bars 38 to the pipe 39 - the cavity of the socket, 40 - shoulder stud head, 41 - shoulder stud tail.

Shows machine "mahanagarpalika": the destruction of the coal produced mechanical work of the body (RO) 6, and the transport crushed rock mass is water, used as an energy source for rotator 5 RO 6, which can be, in particular, gate, high-torque hydraulic motor DM (Medvedkov VI, Krayushkin VG New water motors for downhole equipment hydrosart / Sat. scient. Tr. Vniigintoks. - Novokuznetsk, 1991). This same water (figure 4) and used for washing the wells 21 and the rotator 11 DM type, which is installed between the cutting crown 10 and the hollow drill rod 13. The body of the rotator 11 is rigidly connected with the rod 13, the shaft with the cutting of the crown 10. The rod 13 is not rotating.

Using the threaded machines are sublevel drifts coal seam steep Paden is I, and consider well oriented in the soil generation, i.e. there are also coal.

The machine of figure 1, 2 is represented by a frame 3 welded construction with two drill-intervalym units 4 (BAU) and oil station 9 (MNF) to drive the turbine and table 2 with two BAU 7 and RO 6.

Table 2 connected to the frame 3 by type of case cover and can be moved relative to the frame 3 by the hydraulic cylinders 8. Remote control 1 can be connected as with a table, and with the frame of the machine, as well as outside of the machine itself; in the drawing it is connected with a table. The operator area covered by the canopy, not transmitting the efforts of the RO to the roof framing. The layout is shown as an example. The number of BAU and their positions are shown as an example.

The composition of each BAU: cutting crown 10, the rotator 11, which shaft is connected with the crown 10, one or more ancarola mechanisms 12 (3, 4)bolted to each other, the rotator 11 and the rod 13 through the flanges 28 (figure 5, 6), power coupler 15 (figure 3) and telescopic hydraulic cylinder 19 filing of Brouncker, which has a cavity "drilling" 34 and cavity 36 on the retrieval rod.

The rod 13 has a cavity 27, hydraulically communicated with hydroline 26 through the clutch 15. The cylinder 19 has a hollow shaft 20, through the cavity which is fed oil from MTL 9 on the hydroline 35 to reduce hydro is Jindra, i.e. extraction from wells 21 breanker. The hydraulic cylinder 19 is rigidly connected with the rod 13 through a bracket 14 having a rectangular hole with a contact on the relevant facets of the rod is provided by the absence of its rotation during drilling. The piston rod of the hydraulic cylinder 19 is rigidly connected (bracket 18, slots, bolt, nut) with the design of the machine through the connection 17 and the rack 16-shaped form. The shape of the section of the rack 16 provides the direction of movement of Brouncker; strut rigidly connected with the frame or table (figure 3, figure 4 shows the connection with table 2).

Anerousis mechanism 12 consists of at least one ankerwyke rod 30 (5, 6), articulated with the axis 29 is associated with the rod 13, the springs 31 and piston 32. The piston 32 and the spring 31 are perpendicular to the axis of the bore 21. Thus the end face of the piston from the side of the open cavity 39 of the socket 38, mounted in the bore 37 of the rod, constantly washed by the flowing water, which ensures the absence of tastybaby and improving the reliability of ankerwyke mechanism (unlike ankerwyke mechanism in the method-prototype). Head shoulder 40 of the rod 30 is introduced into contact with the piston 32 with the possibility of radial deflection of the tail of the shoulder 41 in the presence of excess water pressure in the cavity 27 of the rod 13; tail shoulder 41 is spring-loaded against the rod with the possibility egocentrical movement in the absence of water pressure in the cavity 27. Instead of the piston 32 can be set with the same functions of the aperture. You can use a flat spring instead of twisted.

Control system BAU (4 and 7) simplified illustration in figure 4, which shows a locking valve cut 22 in the hydroline reduction of the hydraulic cylinder 19, the valve 23 of the same cylinder, where the position And consistent with the supply of Brouncker down (drilling), and the position of the B - filing of Brouncker up (extraction), and the valve 24, which is a pilot for valve 25 controlling on-off of the water in the cavity 27 (5) of the rod 13. The rotator 11 is structurally not disclosed because 1) its design is known, for example, from A.S. USSR 1523705, BI for 1989 No. 43 or from the specified article "New water engine..."; 2) the subject matter of the invention, this construction is not further characterized.

Work machine with drill-intervalym units (BAU).

Easy rifled machine with a working body (RO) 6 selective action ready to hold the output step N (figure 1). When this rod 13 with cutting bits 10 and rotators 11 (3) BAU 4 and 7 are above ground production (figure 3); the cylinders 8 (2) apart; table 2 "lags" at step n of the frame 3.

Drilling RO.

Two BAU 4 drilling of wells into the soil excavation. Drilling is accompanied by a supply of pressurized water through the hydroline 26 (Fig 3, 4) into the cavity 27 (figure 5, 6) rods 13 and further to p is otocol part of the hydraulic drive 11 - rotate the crown 10. Spent in the hydraulic water makes the products of destruction on the drilled hole 21 (figure 4) upwards. The feed rod down the cylinder 19 at the position And the distributor 23 (cavity 34 in figure 3) when the power cylinder from MTL 9 on the hydroline 35. Flow occurs without rotation of the rod by fixing the latter from turning in the bracket 14, which is rigidly connected with the cylinder 19, the piston rod which is fixed against rotation in the bracket 18. The bracket 18 through connection 17 is part of the rigid structure of the guide 16, is fixed on the table 2 (or frame 3).

During drilling, the piston 32 interacts with its shoulder 40 ankerwyke rod 30, clutching his tail end 41 to the body of the post. Ensured smooth drilling. Unlike the prototype anerousis mechanism 12 (figure 5, 6) with the location of the piston 32 perpendicular to the axis 33 of the rod and the bore 21 has a hollow annular cavity, and an end face of the piston is washed transit passes to the engine 11 water. Therefore, pressing the tail of the shoulder 41 of the rod 30 to the body of the rod 13 is guaranteed.

Upon completion of drilling off valve 25 water flow into the cavity 27 of the rod. Under the action of the spring 31 mounted perpendicular to the axis of the borehole, tail shoulder 41 of the rod 30 poweractive is camping on the hinge 29 and is in heavy contact with the wall of the well. Unlike the prototype method, where the feed cylinder at this point is disabled and the alternating dynamic loads on the rod cause the machine to move in a vertical plane to the backlash, the appropriate course ankerwyke rod on the introduction of coal - to withdraw from contact with the coal, i.e. to lose stability and performance of the proposed method to guarantee anchorage feed cylinder 19 is not cut off and set on removing the rod by switching the control valve 23 in the position B, and the oil hydroline 35 enters the cavity 20 and 36 of the hydraulic cylinder 19 through the locking valve cut 22.

Dynamic loads up, as in the prototype, causes the rod 30 to be introduced into an array of coal, but unlike the prototype, the "backlash" does not appear, because the rod 13 is always tense up. The absence of this "backlash" and reached for the first time a positive effect.

Relative to the anchored frame 3 by a reduction of the hydraulic cylinders 8 provides a table with 2 RO 6 on the bottom on the depth of the ledge N, controlling with the remote control 1.

Then with the help of the BAU 7 drill under the table 2 (in the manner and with the features described in the work of RAU 4) and angeraut table 2. Note that the number ancarola mechanisms 12 this application is not limited to, a set of them can be accessed through the flanges 28 or otherwise (for example, using threads).

Processing slaughter

As the frame 3 and table 2 are attached to the soil by BAU 4 and 7, the machine is ready for sustainable (positive effect) processing ledge depth N. In the usual way, i.e. by hydraulic cylinders swing boom RO in two planes (not shown) and RO, driven by the hydraulic motor 5, the handle bottom. The transport of rock, dust suppression and cooling of the tool implementing spent in the hydraulic motor 5 is water.

Reset of the unit to a new position

Remove BAU 4. To do this, the way the prototype was required to supply water into the cavity 27 of the rod 13 and to enable the supply to the extraction rod. But when embedded in an array coal terminals 30 of the annular pistons in the chambers with rubble may not provide the output terminals from contact with this array, so the feed rod "removing" ankarali element will work as a cutter, and the bar to fetch will fail.

In the proposed method for reliable extraction of the rods BAU 4 should the valve 25 by setting the dispenser-24 pilot in the position And to apply water in their cavity 27 and simultaneously apply the oil through the position of the distributor 23 (as in drilling) - rod goes down, the rods 30 will be released from engagement with the well wall and pressed against the body of the rod. As this cutting crowns 10 rotate, may be little deepening of the well. Now you can remove the rod BAU 4, but in which we disable when this is impossible, not to enter into contact with the walls of wells respective shafts 30 is reached the second time a positive effect.

Include hydraulic cylinders 8 for separation of the frame 3 is moved forward a step N with respect to the previously anchored with BAU 7 table 2.

Are drilling two wells 21 under the frame 3 with the help of the BAU 4 and angeraut frame in the manner described above; as a result, the machine ready for testing next ledge depth N.

Handle Backspace over its entire surface to the depth of the ledge N. Dynamic loads in the vertical and horizontal plane are transferred to Brouncker, ensures retention of the machine in a predetermined position.

The description allows us to consider the inventive method new and useful, and therefore we claim and request to grant a patent on "Method of keeping the mining machine in a predetermined position according to the attached claims.

The way of holding the drilling machine tool in a predetermined position when developing a single ledge of a working body, including preparatory operations drilling with flushing holes in the soil of development by means of several hollow rods with cutting crowns, strained tunneling machine in the wall of the drilled wells with commercially available hollow rods spring-piston mechanisms anerousis element without removing the hollow Stan is from wells, and the new work bench after extracting these rods, characterized in that after strained tunneling machine anerousis element hold when developing the ledge hollow tension rod in the absence of water pressure in the cavity, and before removing the hollow rod first output anerousis element from contact with the borehole wall by moving the bar to the bottom, while water under pressure in the cavity, and a spring-piston mechanism affects anerousis element perpendicular to the borehole wall, then the rod is extracted, after which the tunneling machine is moved by the amount of the ledge and repeat the operation in place at the specified position.



 

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