• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A machine for the cutting of rocks in underground works comprises a slideway, a carriage 8 on the slideway, a machine frame (6) which is pivotally mounted to the carriage (8) at pivot (7), an arm (3) which is pivotally mounted to the machine frame (6) at pivot (5), and a cutting drum (1) mounted on said arm (3). The dimension of the cutting drum (1), the arm (3), the machine frame (6) and the carriage (8) as well as the swinging motions imparted to the machine frame (6) and to the arm (3) are such that the single cutting drum (1) can work the machine free at both ends of the slideway. With the machine a gallery can be dug at the head of a cross heading and part of the cross heading which connects to the head gallery can be worked. <IMAGE>
    公开号:SU1347867A3
    申请号:SU802907950
    申请日:1980-04-11
    公开日:1987-10-23
    发明作者:Гислэн Жозеф Легран Мари
    申请人:Гебрюдер Айкхофф Машиненфабрик У Айзенгисерай М.Б.Х. (Фирма)；
    IPC主号:
    专利说明:

    2. The machine according to claim 1, wherein the radius of the cutting drum is less than the distance between the axis of rotation of the drum and the axis of rotation of the handle.
    3. Machine on PP. 1 and 2, which is due to the fact that the distance between the geometric axes of the rotation of the handle and the drum, increased due to the radius of the drum, is larger than the distance between the geometric axes of the rotation of the handle and the frame.
    A. Machine on PP. 1 and 3, that the trolley is mounted on the sliding guide by means of two supports on the side of the drum, and on the side remote from the drum, the cart is connected to two guides covering the part of the sliding guide , and between the opres and guides there is an open space for the paMiii machine.
    5. The machine according to claim 4, wherein the trolley has a frame function with an opening in which the frame moves upwards and downwards.
    6. The machine according to claim S, that is, that the carriage contains a beam, respectively connecting the supports on the drum side and the guides, and two loops, each of which connects the support on the side
    one
    The invention is from mining to the mining industry and concerns machines for digging a field — 1 g; man-made excavations of the R underground.
    The aim of the project is a range of applications.
    and FIG. 1 schematically yucatan machine; 1l underground mining, transverse raz1k s; in fig. 2 - the same, side view; pas figs. 3 - the same, top view; in fig. 4 — the machine on which the lever and frame are in a different position; in fig. 5 - mechanism, mounted on the frame of the machine; in fig. 6 shows the structure of the machine; a variant in FIG. 7 - the same, top view.
    The machine C11 ;; er) holds the drum 1 rotating around the 01-11 2 on the handle.
    cutting drum with a guide on the side remote from the drum.
    7. The machine according to claim 6, characterized in that the trolley is provided with telescopic supports, which in an extended position are located outside of the guide.
    8. Machine on PP. 1-7, characterized in that the drive of the handle is made in the form of a planetary mechanism, the casing of which is connected to the handle, the ring gear is connected to the frame of the machine, and the sun wheel is mounted on the axis of rotation of the handle and has an engine.
    9. The machine according to claim 8, wherein the sun wheel is hollow, and the drum drive is made in the form of an engine connected kinematically with a drum shaft passing through the sun wheel.
    10.Mashina on PP. 1-9, characterized in that it has a loading screen, the hydraulic lines of which pass through the hollow shaft.
    eleven . Maunma on PP. 1-10, that is, that the rotational drive of frames) e1 relative to the trolley is made in the form of a hydraulic cylinder.
    The drum 1 is driven by an electric motor 4, the handle 3 rotates around a geometrical axis 5. Axis 5 occupies a fixed position relative to the frame 6 of the machine. The frame 6 performs the hinge movement around the axis 7 relative to the carriage 8.
    The cart 8 contains two shoes 9, two guides 10, a beam 11 connecting two shoes 9, a beam 12 connecting both guides 10, and two parts 13, each of which connects the bag 9 with the guide 10.
    The cart 8 has the shape of a frame, the center of which is open inside, so that the frame 6 of the machine can be moved up and down (Fig. 1-4).
    By means of the shoes 9 and 10 10, the trolley 8 is supported on a sliding guide, which is formed by parts (not shown) of the conveyor.
    The conveyor is designated 14, leveling plates 15 located on the front side and side plates 16 on the rear side are fixed to the fixed longitudinal beams,
    The front side of the machine is that facing the face, i. E. drum side 1. The back side is the side removed from the drum.
    Thus, the shoes 9 support the cart 8, and hence the car from the front side. The guides 10 not only support the carriage 8, but also guide it along the rack 17, forming the upper edge of the side plates 16. The beam 12 is positioned above the rack 17
    In the part that is shown barely in FIG. 1, a motor is mounted that drives the gear wheel 18. The gear wheel engages with the rack rail 17. Thus, the carriage 8 alternately moves along a sliding guide formed by the leveling plates 15 and the side plates 16 of the conveyor frame.
    Parts 13 are L-shaped in the transverse direction of the conveyor. These parts have torsional resistance and are located symmetrically with respect to a plane that runs perpendicular to the longitudinal direction of the conveyor 14. Beams 11 and 12 have a resistance to bending. The beam 11 is partially located in front of the conveyor and is designed so low that the loading of the material produced
    sent south






    the drum drum 1, on the conveyor 14, is produced on top of the beam 11, which thereby creates the minimum obstacle.
    From this it follows that the cart 8 has the shape of a frame and that its four elements contain beams 11 and 12 and both parts 13 that surround the open space so that the cut material flows through this space onto the conveyor 14 In addition, the frame 6 of the machine can be moved up and down in this space.
    which is located i placed the elements
    five
    0
    five
    0
    five
    0
    five
    0
    five
    you, which can be extended, and in the extended position, form additional supports supporting the carriage 8 from the outside of the sliding guide. On the front side is a stand 19, which is supported on the ground by means of a support 20. The stand is connected to the carriage 8 by means of rods 21 and 22, both ends of which are hinged. The hydraulic cylinder 23 is pivotally attached at one end to the carriage 8, and at its other end pivotally connected to the rod 2. When the rod moves out of the hydraulic cylinder 23, the rod 22 moves from position 22 to position 22. At this position, the pillar 19 supports the carriage 8, sit on the ground outside the slide guide. When the hydraulic cylinder rod
    23W is powered, then the rack 19 is pressed against the trolley 8.
    When the rod is retracted, i.e. Because the rack 19 is pressed against the trolley 8, it does not interfere with the movement of the lever 3, as a result of which the lever 3 can move down behind the trolley 8.
    On the rear side of the machine is a second rack consisting of a beam 24 and a hydraulic cylinder. 25. Beam 24 can be slid and pushed into part 13. When beam
    24 is in the extended position, the cylinder 25, which is usually located inside the beam, is also extended. After that, both parts of the cylinder 25 are moved apart until the bearing 26 is attached to one of them.
    does not rest on the sole. When the beam 24 and the hydraulic cylinder 25 occupy the position shown in FIG. 2, the cylinder 25 can be adjusted relative to the beam 24 by a fixed angle by means of a rod 27.
    To move the cart 8 through. the sliding guide is first released by the rod 27, both parts of the hydraulic cylinder 25 telescopically move one into the other, and then the hydraulic cylinder is retracted inside the beam 24, after which the beam 24 with the cylinder 25 slides inside the part 13.
    The frame 6 of the machine, moving relative to the carriage 8 around the axis 7, can make a swinging movement
    51
    relative to the carriage around the axis 7 at an angle of 90. The movement of the frame 6 relative to the carriage 8 is controlled by a hydraulic cylinder 28. One part of the cylinder 28 is connected with a finger 29 to the carriage 8, and the other part of the cylinder is connected with a finger 30 with the end of the frame 6 from axis 7. When one part of the cylinder 28 extends out of the other frame 6, the machine rises relative to the carriage 8. When one part of the cylinder 28 telescopes into the other part, the frame 6 of the machine goes down relative to the carriage 8,
    As follows from FIG. 2 and 3, the hydraulic cylinder 28 is installed on the rear side, where the unloading of biochemified material onto the chain conveyor 14 is not difficult.
    In FIG. 1, the frame 6 of the machine is shown in its lowest position. FIG. 4, frame 6 is swung in solid lines; position and dashed lines in the highest position.
    On the frame 6, an electric motor 4 is mounted, which actuates the cutting drum 1, and a hydraulic motor 31, which controls the handle 3.
    A gear 33 is mounted on the shaft 32 of the electrodynamic unit 4, entering gear with a gear 34 mounted on a shaft 35 mounted on frame 6. Moreover, the gear 34 engages a gear 36 mounted on shaft 37 6, The gear wheel 36 forms the riejMiyio part of the coupling (; - nor, the second part of which forms the gear wheel 38, basement; mounted on the flank 37. The control element (not shown) interacts with the groove 39 and the gearing wheel 38 so that alternately slides over the shaft 37 and enters into the ring heating or not with a wheel 36.
    A gear wheel 38 forming the second clutch part engages with a gear wheel 40 mounted at one end of the hollow shaft and the gear wheel 41 at the other end of the hollow shaft.
    On the shaft 42 g of the hydraulic motor 31, a gear wheel 43 is installed, at a distance of 1 de h s; 1 a clutch with a gear TbiM wheel 44.
    0
    7867
    The latter is mounted on the shaft 45, on which the gear wheel 46 is also fixed. The latter is engaged with the gear wheel 47 mounted on the shaft 48, on which the gear wheel 49 is also fixed,
    The shafts 45 and 48 are fixed on the frame 6 of the machine. The gear wheel 46 is engaged in Q engagement with the gear wheel 50 mounted on the sleeve 51.
    The distal end of the sleeve 51 is provided with internal teeth 52, the entry of the teeth into engagement with the external teeth 53 from the part 54, which in reality consists of two gear wheels of various sizes.
    The smaller gear wheel of the part 54 forms the outer teeth 53 with which the inner teeth 52 of the sleeve 51 interact. The larger gear wheel of the part 54 forms the sun gear of the planetary mechanism.
    The sun gear 5 is engaged with the planetary gears 55, fixed with roller bearings 56 on the shafts 57 of the planetary gear set in the box 58.
    jQ The planetary gears 55 which engage with the sun gear, relate to part 54, also engage with the outer:; uberon rim 59 fixed relative to the frame 6.
    The planetary gearbox 58, which is attached to the frame 6 of the machine by means of roller bearings 60, is also connected to the lever 3.
    The hydraulic motor 31 drives the gears 43, 44, 46, 47, 49 and 50 and the planetary gear of the planetary gear box and, therefore, the lever 3, which is connected to it.
    Using a hydraulic motor 31, the lever is connected to an unlimited oscillatory movement in such a way that the lever 3 can be positioned at any angle on the frame 6. A hollow shaft 61 is installed in the sleeve 51, Three nozzles 63 are mounted on the connecting part 62, each of these nozzles 63 through the connecting part 62 communicates with one of the channels, which is connected with the other ITS end to the distribution part 64, also equipped with three nozzles 65, One channel and the nozzles associated therewith
    five
    ABOUT
    five
    63 and 65 are used to supply water to the level of operation of the drum 1 in order to prevent the formation of dust. Both other channels and nozzles 63 and 65 associated with them serve to supply and return a pressurized fluid in order to adjust the screen 66 of the hanging downwardly from the axis of the drum, as shown in FIG. 2
    The hollow shaft 61 (Fig. 5), which rotates freely in the sleeve 51, is fixed in the frame 6 by means of roller bearings 67, in the planetary gear box 58 by means of roller bearings 68, while the shaft rotates freely in part 54, which is sun gear planetary gear of the hollow shaft 61.
    Through the hollow shaft 61 passes the pipe 69, equipped with four channels. The quoting of these channels is made through rotating seals made in connecting portion 62.
    At the end of the shaft 61, remote from the gear wheel 40, a gear wheel 41 is mounted, which, through a gear transmission (not shown), actuates the cutting drum 1.
    When the gears 36 and 38 are engaged, the cutting drum 1 is driven by an electric motor through gears 33, 34, 36, 38 and 40, shaft 61, gear 41 and a gear (not shown) located inside arm 3.
    When the gears 36 and 38 of the clutch do not interact with each other, the engine 4 does not drive the shaft 61 and thus the drum 1 does not work.
    The dimensions of the drum 1, the arm 3, the frame 6 of the machine and the carriage 8, as well as the magnitude of the mating movements communicated by the handle 3 and the frame 6, are chosen such that the cutting drum can be performed on either side of the other parts of the machine, as a result which it can produce freely at both ends of the sliding guide.
    If you look in a direction perpendicular to the bottom surface, all the machine nodes on the left and right are within the boundary of the cut drum 1, so that the drum can move to the left or right. This is best achieved when the distance between the geometr
    the secondary axis 5 and the cut-in drum 1, increased due to the radius of the drum 1, is greater than the distance between the geometrical axes of the first axis 7 and the second axis 5. The radius of the cut-off drum 1 is less than the distance between the axis 2 of the drum and the second geometric axis 5.
    Using the proposed machine, free cutting can be carried out on both sides using a single drum 1, as opposed to the known types of machines, which in order to achieve 5 the same purpose had to have two cutting-in drums.
    Thanks to the handle 3, on which the cutting-in drum 1 is fixed, hingedly mounted on the frame 6, which in turn is fixed to the trolley 8, the cutting drum can be raised to a greater height relative to the sliding guide, and the whole machine is folded in 5, it has a very small height. Mainly due to this feature, the same machine can be used to generate high altitude drifts or to get medium bottom faces of small height.
    The fact that the carriage 8 is made in the form of a frame and has a free internal space, thanks to which the cut material can freely enter the conveyor 14, as a result of which the material is easily removed even with a low arrangement of the frame 6. Handle 3 attached to the planetary gear box Thanks to this, it has a stable position within 360 °.
    The shoes 9 and guides 10, with the help of which the carriage 8 rests on sliding guides 15 and 16, which are located far from one another, but to the left and right axles are close to the cutting drum 1, which ensures a stable arrangement of the machine.
    Moreover, the shoes 9 leave the drum loading area completely free.
    The floor structure of the shaft 61 facilitates the delivery of sprayed water and the control of the loading screen. The shaft passing through the solar ring 54 from the planetary mechanism provides a compact and super-drive drive for the cut drum 1 and
    0
    five
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    five
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    five
    P1
    this drive is for any POSITION 1 AI 1uko ti 3 within 360.
    By moving the parts hydraulically on the c.i.cindra 28, the frame 6 of the machine is installed: 1c: in the taxis position, with axis 5 around which the handle 3 is turned, ss. drops from the central safety line (1 roadway, which should be withdrawn. Without further adjustment of the frame: 6 cars relative to the trolley 8, just turn the lever in the 5-axis 5 with an upset machine, you can accurately cut down the vault of the track or a tunnel as regards height and direction.
    Frame 6 MLIIPS pschasapa FIG. 4 dotted lines. lpch: ji: vi: i- kg;, with which the handle is 3 in. With BpyOciniiiM package i 1 mo. :: - .i i.

    pdo.ch osp (,, h from (LDPoG st (ich:; 11) | nl another, NS prsch ;;; і TI i: oaoii ;; y UTjioi-.n ib pa6ivn.l. 1 1 | -kl can Osu; CA C h P-LA GHS and 11,, H G -: i / ll IPgLL OGO rifpt msg. and. NO; Yi: o / 1Ti 3 zl:; i, chokrug ks T iJiii f iy 11Я1Л. j ; i l h L II hp ts n; 1 rl Ms 6 n;:. n: i, 11et, p; lu oh h sd line orao f I l: l smogo CBixan, il-tc gclylo plml o g: l1; yin 3ang..at T positie,; x: ka (Liio; ... i., -h; l 1-hm1 jii iiUH it yl fig 4, Dl I upol1K 1:; 1 i 1 Izpntl.11 ;: - iOr ill.: ;; 1, gr. - .. l ircii.ij:.; corner tl i.}, and eupinu ch (,) os 1 Ü, L;.; key heading c);:. Tim h; h.1 Plrl;, ln 1 ijr.if h h with g py - ,,: i -.iiiKcr ir-hch g. - ji.iL b: i,: oh h.; .. -KHeii eagle; i -iaininii. Л1р / р-л. Л, НЛобороТ, b: Л , L rlml ft ::., Zl-il L | 1;: |; h: 1. It: -Me. - 4cni: i) il f; h. 4; iTi.: Iiviii. Giiiiiiii-.a: line: ii.
    Mauur; .l. - PL. : | rlc: Cogl I 1y | Lol blrO:; ilh laiii with
    U NIZTSS M Mi-:: - ;. ug1 ii
    ,.: 1 i and I. l; I44U m. ia i-. viai -a pn-i i ... ..; -. ; , - oan ni; ii. : a ti. ; i to ,, o; i |;: i i l; lL; 1L |) l. Nose 11., .1Л lirci c а Т1; leach,) 1; and jir-.i I and i. GSP On the neivOTO-acie rallymellipus arip.aia, Ijaj.a.i, parliament dvili {e 1 with ir; -: c 1 .J with r; l1 p,: olt. top storaim, h i: zu.-hl PBX of which ibrachu1 14 and o itMiij 7o4iia i .unollobrate for-; l. Pointer: on- pariiii p .., -; ; CplPM (;.: 1 KOLYLI, MINUTE, ALL GALLALGING LRL ZTOM, CHTG | r; | -, i; PeMC K: PI C LrL | L 1L 1
    786710
    The RL was not cut down during these operations, it is now developed by reciprocating the carriage 8 along the sliding guides 15 and 16, thereby placing it with the help of Rlma 6 and the handle 3 of Barbara 1 at the height where the material should be cut. The machine shown in FIG. 6 and 7,
    Q is a modification of the machine shown in FIG. 1-5, and is used mainly for the development of ptrek and tunnels, when the work in the bottomhole can not be done analogue, gich} the first machine. As for the size restrictions, they are less stringent in this case, with the result that m; a; 1 mi can be higher even in today's V g - M STOPPIIII.
    QB design shown in Fig.6
    and /. 6oKOf iiie plates 70 fja ass} 1 with 1CH1rone conveyor sh. Filled with very strong. Top and bottom sides. I11.1STR1NY are supported on guides of PCPHI 71, which are opposed and under-; snitch cart 2 in vertical
    |; 10GeNII.
    Klk is shown in FIG. 6, trolley 72) 1baet t the upper direction of the ro (-) j;: iK 71 and rests on the lower direction ;.M) PC1LP1- :, the trolley 72 is supplied with mO 7, ti lstylI., (To the front hundred - Yiwu. The frame 6 is fixed to this axis, and the axis 5 is supported by the axis 5, around which the handle 3 is fastened, at the end of which the drum 1 is fixed.
    The work of auIina presented on; jui. 6 and 7, it differs in cyiuecT from the work of MP11PNY shown in ф111. 1-5, (however, in this case, ;; j does not have (the frame's jurma, tdk as | -jump is completely located npe) (pa 14, the result of which and |, fu ii; iOMidJ; -; l1 s- Rial besp1r (M1, Tiesiezzo can / / g fall on KoHBeiiep 14.
    iliHV U iaraOMoc invention is limited to consideration} 1n; mm 1 (there are various 1 1 marks on MorvT instructions, 1, icjicnunnHecH form 11: - L 1, the composition, the composition / content of the KLIJUMCCTIUII and the use of;
    So, for example, cccgruz czii, tio-clicanoG) in fig. 1, the engine can
    UsatsavlnBat1), as on the right side. five
    PS, and ps howl. Into) Instructions,
    tsokazaino; on ijinr. 1-5, the trolley does not need to be in the shape of frame1) 1 with chg-gyrum sides. She may have
    and-edging. The central opening for discharge shall be maintained. When the beam connecting the rifles on the rear side is made sufficiently strong, the beam connecting the shoes on the front side can be eliminated, thereby achieving less obstacles to the material to be discharged.
    In addition, the MSI will eliminate one of the L-shaped parts that connects the guide on the back with the shoe on the front. In this case, the cart also has an i-shape. The U-shape results in a less rigid trolley design, but the other advantages of the machine are retained and a freer loading of the conveyor is achieved.
    2 /
    12
    /. 20 f 9 15 - / 3
    % s.2
    sixteen
    ABOUT
    / 7-f2b to W It29 P
    9igM
    R
     / J
    41 48 47 40 61 69 52
     35
    (Rig 5
    35 3V 32 33
    权利要求:
    Claims (11)
    [1]
    1. MACHINE FOR EXTRACTION OF USEFUL FOSSIL IN UNDERGROUND WORKS-
    Fig 1
    KAH, including a trolley mounted in sliding guides on supports, with a frame on which a handle with a drum is located that can be rotated in a vertical plane, rotatable around an axis parallel to the axis of rotation of the handle, drum, stick and trolley drives, characterized in that, in order to expand the range of application, the frame is mounted with the possibility of rotation around the axis relative to the trolley, and the axis of rotation of the frame is parallel to the axis of rotation of the handle and the drum and is equipped with a drive Ohm turning the frame with respect to the cart.
    347867
    [2]
    2. Machine by π. 1, due to the fact that the radius of the cutting drum is less than the distance between the axis of rotation of the drum and the axis of rotation of the handle.
    [3]
    3. The machine according to paragraphs. 1 and 2, characterized in that the distance between the geometric axes of rotation of the handle and the drum, increased due to the radius of the drum, is greater than the distance between the geometric axes of rotation of the handle and frame.
    [4]
    4. The machine according to paragraphs. 1 and 3, provided that the trolley is mounted on a sliding guide by means of two supports on the drum side, and on the side remote from the drum, the trolley is connected with two guides covering a part of the sliding guide, and there is an open space between the supports and the guides for the car frame.
    [5]
    5. The machine according to claim 4, characterized in that the trolley has the shape of a frame with an opening in which the frame moves up and down.
    [6]
    6. The machine according to p. 5, characterized in that the trolley contains a beam, respectively connecting the supports on the side of the drum and the guides, and two crossbars, each of which connects the support on the side of the cutting drum with the guide on the side remote from the drum.
    [7]
    7. Machine pop. 6, characterized in that the trolley is equipped with telescopic supports, which in the extended position are located outside the guides.
    [8]
    8. The machine according to paragraphs. 1-7, characterized in that the handle drive is made in the form of a planetary mechanism, the housing of which is connected to the handle, the ring gear is connected to the frame of the machine, and the sun wheel is mounted on the axis of rotation of the handle and has an engine.
    [9]
    9. Machine pop. 8, characterized in that the sun wheel is hollow, and the drum drive is made in the form of an engine connected kinematically to the drum by a shaft passing through the sun wheel.
    [10]
    10. The machine according to paragraphs. 1-9, characterized in that it has a loading screen, the hydraulic lines of which pass through the hollow fell.
    [11]
    11. The machine according to paragraphs. 1-10, characterized in that the drive rotation of the rams relative to the cart is made in the form of a hydraulic cylinder.
    类似技术:
    公开号 | 公开日 | 专利标题
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    US3506310A|1970-04-14|Boring machine
    GB868509A|1961-05-17|Road finishing machine
    US2241252A|1941-05-06|Snowplow with power discharge
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    US3442554A|1969-05-06|Machine for cutting a roadway in underground workings
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    US2407448A|1946-09-10|Mining machine
    US4615565A|1986-10-07|Tunnel or road header
    US4239289A|1980-12-16|Maneuverable full face miner
    US1347332A|1920-07-20|hopkinson
    US3309143A|1967-03-14|Continuous miner having angularly adjustable trimmer bars
    CN215718884U|2022-02-01|Protection device for coal mine tunneling
    DE3313435A1|1984-10-18|Tunnelling machine
    US2597040A|1952-05-20|Mining machine
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    US3695718A|1972-10-03|Raise boring machine
    RU1805173C|1993-03-30|Earth-moving machine
    同族专利:
    公开号 | 公开日
    CS265201B2|1989-10-13|
    GB2047774A|1980-12-03|
    BE875547A|1979-10-15|
    GB2047774B|1983-02-02|
    PL223407A1|1981-03-13|
    US4290652A|1981-09-22|
    CS256080A2|1985-08-15|
    YU99780A|1983-04-30|
    PL125067B1|1983-03-31|
    HU182077B|1983-12-28|
    DE3013175A1|1980-10-30|
    YU39874B|1985-04-30|
    FR2470242A1|1981-05-29|
    JPS55148891A|1980-11-19|
    JPS6030836B2|1985-07-18|
    FR2470242B1|1984-12-14|
    DE3013175C2|1990-08-02|
    ATA194480A|1982-07-15|
    AT371221B|1983-06-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2572570C2|2009-11-10|2016-01-20|ФАМУР Акционерное общество|Cutter loader|GB1039981A|1963-10-02|1966-08-24|Greenside Machine Co Ltd|Improvements in or relating to heading and ripping machines for mining|
    FR2057460A5|1969-08-20|1971-05-21|Charbonnages De France|
    GB1403821A|1972-08-17|1975-08-28|Pitcraft Ltd|Mining machines|
    BE839635A|1976-03-17|1976-07-16|IMPROVED MACHINE FOR REDUCING SHORT FRONTS IN MINES|
    DE2731586C2|1977-07-13|1982-04-01|Gebr. Eickhoff, Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum|Roller cutting machine, the cutting rollers of which are each held by a support arm|
    DE2809723C2|1978-03-07|1987-03-26|Gewerkschaft Eisenhuette Westfalia Gmbh, 4670 Luenen, De|DE3144382A1|1981-11-07|1983-05-19|Gewerkschaft Eisenhütte Westfalia, 4670 Lünen|Cutter shield for the driving of development roadways in underground mining operations|
    DE3224514C2|1982-07-01|1986-12-11|Ruhrkohle Ag, 4300 Essen|Tunneling machine|
    JPS59145898A|1983-02-04|1984-08-21|Sp K Tekunorogichiesukoe Biyuu|Apparatus for building tunnel curved mold groove|
    DE3317206A1|1983-05-11|1984-11-15|Gebr. Eickhoff Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum|Selective-cut heading machine|
    DE3329703C2|1983-08-17|1987-02-05|Gebr. Eickhoff Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum, De|
    FR2590930B1|1985-11-29|1988-01-22|Douaisis Sabes Stephanoise|MINING SLAUGHTER|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    BE2/57726A|BE875547A|1979-04-13|1979-04-13|MACHINE FOR DISMANTLING STONES IN UNDERGROUND WORKS|
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