DE2054298C - Drilling machine for tunneling - Google Patents

Description

7. Machine according to claim ύ, characterized in that the two pumps (25) have a: thrust piston gear (23) in one at the rear end of the rotating shaft (2) attached and behind the rear roller bearing (30) of the same located housing (24) are arranged one after the other.

8. Machine according to claim 7, characterized in that the two pumps (25) have a Thrust piston gear (23) are driven by a countershaft (92), the drive rac (26) meshes with a stationary internal gear rim (2T, whereby a synchronization of the Pivoting movement of the pivot arms (18) mi the rotational movement of the rotating shaft (2) or de; Drill head (1) is effected.

9. Machine according to claim 6 to 8, characterized in that the two cylinders spaces of each thrust piston gear (23) connecting with the associated pumps (25) Slide (56) are umsteuerbai by means of limit switches, which de near the bearing (16) Pivot shaft (17) of each pivot arm: (18) are slidably arranged to be driven by An change the position of this limit switch the ge desired swivel range of each swivel armes (18) to be able to adjust.

10. Machine according to one of the preceding claims, characterized in that de Guide carriage (58) with side thrust piston-driven (63), which with Andruckkufei (66) are provided, support on the side walls of the construction line from (7)

11. Machine according to claim 10, characterized ge indicates that between the Führschiit th (58) and the push piston gears (63) eir Ball joint (67) is provided so that by operating the individual thrust pistons separately gear the position of the guide carriage against the side walls of the mining section (7) ver is changeable.

The invention relates to a drilling-working road tunneling machine, which one on a rotary has shaft arranged drill head, on which several, each equipped with a cutting tool and can be acted upon by means of hydraulic pumps

Plunger-driven movable swivel arms are arranged, and in which the drill head in front of a The frame consists of two housings and is arranged against the site by means of a piston drive Chest is movable, the housing below one another

connected by two parallel side members, the extension of which backwards into the slideway run on a guide carriage.

As is well known, the usual route jacking machines with cutting tools, which au] on a tool holder rigidly attached to a drill head rotating at constant speed mon are only the drilling of a mining section with a uniform diameter, whereby the power

the drive motors in particular due to the hardness With the invention a route advance niades Soil in which under the given feed machine is created, which becomes an economical one conditions is bored, is determined. Reasonable price can be made and without From the German Offenlegungsschrift 1 938 818, the use of sensitive components is more time-saving already a tunneling machine of the input 5 way by simply exchanging its accessories Design known, with soft as a result of the parts adapted to the respective working conditions pivotable mounting of the cutting unit can be.

witness supporting swivel arms of the track cross-so the machine can by optional incision can be changed by swiveling swivel arms with the required output range the swivel arms to the desired route to the most diverse route cross-sections cross-section is adjusted. The face to be adapted to the ab-.

bay section is thereby of one or more By replacing the pinion in which the drilling

Cutting tools, which, as a result of the overhead driving gears, can reduce the rotational speed

storage of the rotary movement of the drill head and the digkcit of the drill head and thus the circumferential

Swivel movement of the swivel arms a spiral 15 speed of the cutting tools in a simple manner

Describe a moderate path. Be changed in a manner, whereby the performance of the

From the German Auslegeschrift 1 247 988 and the drive motor remains constant, so that on the from the French patent specification 1 476 102 fer- drill head is transmitted torque at Vermindener a tunneling machine known which tion increases its speed accordingly. consists of an immovable frame, on whose 20 By exchanging de; Drive wheels of the a drill head is rotatably mounted at the front end. Push piston gear of the swivel arms beaufschla-Am front end of the drill head is a means of slowing pumps can adjust the slewing speed The hydraulic feed device in the axial direction of the swivel arms and thus the pitch of the Arranged in the direction of displaceable pre-drills and the cutting tools executed spiral-shaped on a trajectory curve provided behind the pre-drill and on the cutting tools the diameter of the protruding disc, the radial feed practiced can be changed, of the drill head are several by means of hydraulic The interchangeability of the gear pinion or the Liefereinrich'ungen radially displaceable cutter pump drive wheel is thereby due to the fact arranged. The milling cutters describe it as a result of the favored that these gears each on one Superposition of their radial feed with the rotary drive 30 countershaft, which in their movement of the disc follows a spiral path. Is mounted eccentrically to the bearing sleeve, so that by Verdiese Driving machine to different degrees of hardness turning the bearing sleeve the distance between the To be able to adapt stcinsarten, it is provided that the countershaft and the associated output or changed the drive gear assigned to the pre-drill and the milling cutter and the desired one Feed devices, d. H. the thrust piston 35 gear size can be adapted, drives due to the controllability of the throughput rate, which can be regulated in their turnover performance To pressurize pumps. Further measures that the pump, which the pressure of the drill head make it possible to act on the thrust piston mechanism effecting the operation of the mining machine, it is to different operating conditions in a simpler finally still possible on the cutting unit way to be able to adapt, but are not open to change the axial feed rate exerted, beard. The tunneling machine according to the invention

The object of the invention is to provide the following over the known machines a tunneling machine with the advantages mentioned at the beginning: it can handle very different types of excavation to create a drive device that is more likely to drill diameters between 3.50 and 6 m, allows the tunneling machine to be carried out quickly and reliably, with the machine body remaining the same and tive simply to the respective operating conditions, only the accessories, such as the swivel arms and d. H. For example, on various transverse routes - the drive wheels of the gearbox for the rotary or cuts or rocks of different hardness, adjustable swivel movement and the ground support parts to be removed, are switching.

According to the invention, this task is achieved by the machine body assembled in the factory

Unification of the following features solved: a) The dimensions for road and railroad construction

Swivel arms are each with the drill head and not exceed and the attachment of the accessories in place

the piston rod of the reciprocating piston gear and point requires little time, the integration can

detachably and interchangeably connected. The machine went into operation shortly after arrival

b) The arranged in the front housing and 55 take place on the job site. On the other hand, he has The gearbox driving the drill head includes a machine body with a small central transverse purpose Change in the reduction ratio one cut, so that around it a considerable one Provided with an exchangeable pinion, remains in space, which the removal of the spoil eccentrically arranged in front of their bearing sleeve immediately behind the working joint and good motion shaft. 60 freedom of movement around the machine, especially for

c) The attachment of supporting arches directly behind the pushing piston gear Pumps are permitted by means of an in their bearing sleeve dismantling joint. Since the opening angle of the sen eccentrically built-in countershafts last swivel arm can be enlarged, it is releasably arranged drive wheels driven. possible to very quickly and easily change the diameter

d) To change the pressure of the drill head causing 65 of the mining section, in such a way that Thrust piston gears are pumped through either the borehole with the required end with a loadable throughput capacity or with a larger diameter serves. is drilled to match the thickness of the cast

tons to take into account. For this only need the one on the end of the rod 22 of the piston End stops of the outer swivel arm for the double-acting push piston drive 23 is screwed to match the swivel angle of the same, which is screwed by pivot pin, ball joint to be adjusted accordingly. Almost all of the weight and bearing on the one pierced by four holes the machine rests on the front end and 5 rear plate 13 is attached.

is supported by means of fixed pressure skids. According to FIG. 5, the hollow shaft 2 has on its

the cutting walls of the mining section so that a rear end has a housing 24 with four double pumps

high stability is guaranteed. pen 25, each by means of a drive wheel 26

In the following, the invention is based on the in by a with the fixed part of the Ma-

The drawing shown Ausführungsbcispicls io schinc frictionally connected inner ring gear

more detailed. 27 are driven.

It shows each thrust piston gear 23 is of one

1 shows a side elevation of the double pump 25 according to the invention, the machine throughput, the power ratio of the two pumps corresponding to the

Fig. 2 is a plan view of this machine, showing the cross-sectional area of the two cylinder F i g. 3 corresponds to the swivel arm spaces of the Schubkolbcngctricbes on a larger scale and the

and the thrust piston gear that actuates it, pumps alternately as a motor and as a brake.

Fig. 4 in half a partial longitudinal section the front work, so that the piston movement is precisely controlled Housing, will. The reversal of the movement is done by FIG. 5 shows, in half a partial axial section, the rear Gc ao a slide 56, which from in the vicinity of the bearings 16

häusc with the Drchwellc, which arranged the drill head on the swivel armc and from the Bcwe-

drives, movement of the shaft 17 of the pivot arm 18 actuated

6 in cross section a part of one which is controlled on end contacts. The setting of the

The front housing-mounted lowering end contacts allow the extreme positions

drives, * 5 each swivel arm and thus its Schwcnkwinkcl

7 to determine the arrangement in half a longitudinal section. The low pressure oil supply of the hydraulic

the electric drive motor and the hydraulic system is done through the housing 28.

see pumps on the rear housing, through which the control current for the hydraulic

F i g. 8 a Tcilaxialschnitt the machine in see slide is fed, namely by means of Height of the guide carriage, 3o fed by Schlcifbürstcn, not shown F i g. 9 shows a cross section along the line ίΧ-ΙΧ in slip rings 29. Fig.Sund The housing 4 carries the roller bearing 30, which the 10 shows a cross section through the front axis of rotation of the drill head 1 in connection with

house of the machine. the cylindrical roller bearing 31 (F i g. 4) determined that

In Fig. I and 2 is the drill head 1 is carried on the end 35 of the front housing 3 and the

a hollow shaft 2 applied, the whole drill head 1 supported, while two stops the

in the thrust to be transmitted to the drill head 1 by the two parallel thrusts to each other

cylindrical longitudinal members 5 absorb associated stresses,

sen3 and4 of a rigid frame supported bearings According to Fig.4, the front housing3 consists of

turns. The side members 5 are to the rear over the 4 <> an outer ring 34, an inner ring 35 and two

Housing 4 is also extended to act as a slide for the front and rear flanges 36 and 37.

to serve the guide carriage 6, which with pressure- On the front flange 36 is the outer gear

skids 66, which are on the side wall? of the housing of the roller bearing31, while the internal

Support the ncls, and is equipped with devices, place the housing on the inner ring 12 of the drill head c 1

which exert a thrust on the face 8. Furthermore 45 is applied, which is supported by a in the housing 3

a vibratory conveyor 9 mounted under the machine is rotating

brings. is offset, with the drive wheel 48 in the

According to FIGS. 3 and 4, the drill head 1 is on the outer ring of the rotary head 1 yeast, saturated In-

from a welded whole that engages an external gear rim 38.

ring 10 with a front plate 11. an inner ring 50 The tightness of the roller bearing 31, the un-

12 and a rear plate 13 with a non-illustrated gear drive and the drill head I in

placed central hub, on which the conical rotational movement of the gears displaced by the

Connecting parts and a clamping ring ensures the hollow-hard friction seals 39 and 40,

welle2 is attached, the rear end of which is shown in Fig.5 on the other hand, the stability of the machine in front

is visible. An intermediate plaUc 14 provides the connection 55 by fixed skids 41 (F: g. I and 2).

between the two rings 10 and 12. chert, which are offset from each other by approximately 120 ° A bracket-forming sheet metal parts 15 (Fig. 1 and 2) arranged and carried on the front housing 3, the roller bearings 16. in which the worlds 17 are sligt, while one on the outer ring 34 of the

the pivot arms 18 are mounted, the angle housing 3 of which supports 43 mounted radially

19a is determined by the part of the Ortsbnist8. 60 nice piston gear with the runner 44 on the which each swivel arm for the execution of the Waid7 of the mining impact (Fig. I) is supported to the

Swivel movement is assigned. shocks occurring during operation The drill head thus carries four swivel arms that weaken.

a complete processing of the generally run according to FIG. The outer part of the 65 tongue drive over the sleeve 45, which is attached to the front

The swing arm carries a tool 19 (FIG. 1) with a logclegeweJc 46 attached and with the drive shaft 47

scr turntable, while the inner part is connected to a tiollen- (Fig. 1 and 2) by a KarJan coupling

has lagcr 20, on which the bracket 21 is articulated. that is. The movement is made by gear 48

⁹ %

transferred, which is applied to the shaft 49 and engages in the internal gear rim 38 (FIG. 4). the Shaft 49 takes up the drive movement via the two gear shafts 50 and 51. each of which carries two gears, the drive gear of the WcMc 50 with one on the countershaft! Pinion 90 meshes. The housing 3 thus serves as a carrier for four transmissions, each of which has four their two lüulen equipped with cardan couplings Drive shafts 47 (Fig. I and 2) driven will.

To the reduction of these gel drives and thus the speed of the drill head or the peripheral speed The ability to change the cutting tools is the pinion 90 on the countershaft 46 arranged interchangeably, the countershaft 46 being eccentrically mounted in its I.agerhiilse 91, see above that is the distance between the pre-shaft shaft and the Drive / gear of the shaft 50 by turning the bearing sleeve in a simple manner on the diameter knife of the pinion 90 used in each case can be adapted.

According to FIG. 7, the housing 4 carries four Fleklroinotorcn 52. which drive the drive shafts 47 by means of cardan joints 53 via elastic couplings (not shown) located in the housing 4, the housing also being used as an oil container and al. Ί -ager for the motor pumps 54 and the pumps 55, which are used to supply oil to the various hydraulic SjSiCmC; '■! "*." cisicrs aiii the upper part of the housing 4 attached electrohydraulic slide 56 are intended. The rear part of the housing 4 carries the fixed internal gear rim 27 (I'ig. S). which is used to drive the pumps 25 (Fig. *>), which ensure the swiveling movement of the swivel pan. The hydraulic connection between the pumps 25 and the thrust piston gear !! 23 (Iig. ) Takes place via lines leading through the hollow shaft 2 (FIG. 5).

To the delivery rate of the pumps 25 and thus the speed of the swivel arms 18 Ivw. ilen exerted on the cutting tools 19 To be able to change radial preselection is the driving gear 26 of the pumps, which with your inner rim 27 combs, arranged interchangeably on the countershaft gear 92, which in turn is in their I agerhiilsc 93 is mounted eccentrically. so that by simply turning the bearing sleeve the distance / wipe the counterweight and the inner ring gear changed and adapted to the diameter of the drive wheel 26 used in each case can.

The two cylindrical longitudinal members 5 (I ig. 2). connecting the housings 3 and 4 are ^ mmctrisch to the axial direction of the machine, and / vv ai to the right and left of this, arranged and n.K-h extended at the rear, where their lounges merged connected by a plate 57 (Fig. 2).

According to Fig. X υοΊ 'the rear parts of the side members 5 are used to control the machine by means of a Fiihningschliltcns 58 (Fig. 2). which has two cylindrical tubes 59 in which the carriers S and 6 run, the rear parts being connected to one another by the two plates 60 which have in their center a shaft 61, the axis of which coincides with that of the machine, and which are formed by conical rings 62 is firmly connected to the guide carriage. IXr carrier of the three thrust piston gears 63 ordered from an outer ring 641 and three parts 65 each offset by 120 against each other with conical recess, which receive the ends of the piston rods of the thrust piston gears 63, the cylinder ends of which have plates 66 which are in the form of a pressure skid for support of the machine on the side wall of the Abauslrcekc7 (Fig. I). The parts 65 that carry the shoe piston gear 63 are

ίο connected to the shaft 61 by a ball joint 67, which produces a cardan connection between the Sehubkolbengeliebecn 63 and the machine. The ball joint 67 is supported on the shaft 61 which is firmly connected to the guide carriage 58 (FIG. 2) and on the parts 65. which carry the thrust piston gear 63 by means of rings 68 and 69, respectively. Any pressure 66 (Fig. I and 2) carries two metal sheets 70 (Fig. I) on which three thrust piston gears 71 (Figs. I and 2) support the piston rods

»Ο again on the also by 120 against each other offset and with the housing3 (Fig. 4) Support firmly connected metal sheets 72 (Fig. I). The three thrust piston gears 71 practice on the Housing 3 the required feed on the drill head 1.

The rotational movement around the axis of the machine between its frame and the rear support plate the thrust piston gear 63 is done by a group of two double-acting hydraulic piston

3 ⁿ bengritten 73. «lit * sirh (lurch metal sheets 74 and 75 support icwcils on one of the cylindrical tubes 59 and aiii the ring 64. This arrangement makes it possible on the one hand to transmit the counter-torque of the drill head to the rock and on the other hand to increase the stability of the machine to ensure their axial direction, that is, to accommodate the cylindrical longitudinal members5 in a horizontal plane.

Referring to FIG. I, the falling in the overburden is Abbaustreckc b on the machine-mounted Schwingförders9 cleared away by means of the brackets 78 by ff and 78, which is driven by the hydraulic motor 85.

When the machine is put out of the rest position into operation, it will be (8 and ¹ J Figure) supported mil means of the thrust piston gear 63 from behind against the tunnel walls, and it is with the aid of the thrust piston gear 71 (FIG. I and 2) The forward thrust exerted by the drill head I is transferred to the face, while the front part of the machine slides forward on fixed skids 41 in the mining corner and the longitudinal beams 5 (Fig. 9) in the cylindrical tubes 59 of the guide section 58 ( F i g. 2). The machine is advanced by successive movements, each movement corresponding to the length of the longitudinal members 5 (FIG. 1) in the cylindrical tubes 59 (F 1 g. 8 and 9) of the guide slot 58. When a movement is finished. the pressure of the olive push-piston gears 63 is reduced and the push-piston gears 71 are operated by means of the pumps 55 7iiri! c!; g? / o £ cn. Di ^: rcl. the allocation of one pump to one of the three shoe gears 71, an uneven movement around the ball joint 67 is avoided. The two un: cren push-piston gears 63 slide forwards on the backward movement of the connecting rod 71 on the dots.

When the liilinmiiss »envelop 58! the χκ-Ιι am

309631'4Ol

Floor supporting piston gear 63, according to are out in front, the upper thrust piston gear 63 is pressurized again and the Thrust piston gears 71 are also put under pressure (in order to apply the thrust to the drill head I. transmitted as soon as this is set in a rotary movement, while the pivoting movement of the Swivel arms 18 takes place synchronously with the rotary movement.

Each tool digs a spiral groove in the excavation face, the slope of which depends on the hardness of the soil. Since the speed of the drill head adapted to the diameter of the tunnel to be drilled through the choice of interchangeable sprockets 90 of the Vorgclegcwclle 46 is obtained, the oscillation frequency of the Sehwenkarmc 18 by appropriate choice of exchangeable drive wheels 26 of the pumps 25

ίο

set to the desired value. That to drive the three working in parallel during the drilling process The oil required for thrust piston gear 71 is supplied by a gear pump 55 with adjustable throughput fed that allows manual or automatic adjustment of the feed speed of the Machine to the power of the drilling head driving motors 52 allows.

The guidance of the machine by means of a suitable

th straightening device is done by moving the rear part of the machine by operating the three thrust piston gears 63 connected to the guide carriage via the ball joint 67. These lateral displacement of the rear part of the machine causes a displacement of the drill head opposite the fixed skids 41 in the opposite direction.

For this purpose 2 sheets of drawings

Claims (6)

Patent claims: I. Drilling working tunneling machine, one arranged on a rotating shaft Has drill head on which several, each equipped with a cutting tool and means hydraulic pumps can be acted upon by push piston gears movable swivel arms are arranged, and in which the drill head in front arranged in a frame consisting of two housings and counteracted by means of thrust piston gears the chest is movable, the housings one below the other by two parallel longitudinal members are connected, the extension of which run backwards in the slideways of a guide carriage characterized by the combination of the following features: a) The swivel arms (18) are each connected to the drill head (1) and the piston rod (22) of the thrust piston gear (23) detachably and interchangeably connected. b) The gear arranged in the front housing (3) and driving the drill head For the purpose of changing the reduction ratio, it has a bearing sleeve provided with an exchangeable pinion (90) (91) eccentrically arranged Vorgclegewelle (46). c) The thrust piston gear (23) acting Pumps (25) are eccentric by means of sleeves (93) in their position built-in countershafts (92) detachably arranged drive wheels (26) driven. d) The thrust piston gear (71) which presses the drill head (1) acted upon by a pump (55) with adjustable throughput. 2. Machine according to claim 1, characterized in that on the back of the rear Housing (4) electric motors (52) are arranged, each of which has a cardan joint (53) and a drive shaft (47) with the countershaft (46) of the drilling head (1) driving Transmission are connected. 3. Machine according to claim 1 or 2, characterized in that the drive gear (48) of the gear unit driving the drill head (1) with an internal gear rim arranged on its rear side (38) combs. 4. Machine according to claim 3, characterized in that the drill head (1) opposite the front housing (3) supporting roller bearings (31) in the plane of the internal ring gear (38) is arranged. 5. Machine according to claim 4, characterized in that the roller bearing (31) and the the drill head driving gear are arranged in a closed housing, wherein the rotating housing part (1, 10, 12) opposite the stationary housing part (3) with two sliding seals (39, 40) is sealed. 6. Machine according to claim 1, characterized in that each cylinder chamber of a thrust piston gear (23 ) is supplied via a slide (56) from a pump (25), the throughput ratio of these pumps the ratio of the cross-sectional areas which corresponds to the cylinder spaces and the pumper work alternately as a motor and a brake