• 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:
    FIELD OF THE INVENTION The invention relates to the mining industry and increases the productivity of a rock notch. To nick a rock, the notch head of its teeth moves in the axial direction with a limited stroke length. The teeth interact with the cylinder-piston (C-P) unit, for example, with a valve (K) 18. The latter is periodically loaded with working medium. In the phases without loading the C-P unit with the working fluid, the cutter is shifted to the initial position. The volume of fluid displaced by opening K 18 is removed under pressure through at least one nozzle in the direction of the incisor or the chest of the bottom. The working fluid is fed under a pressure of 200 bar, in particular 300-450 bar. The notch device is made in the form of a notch head with incisors 24. The cutters 24 have the ability to move in the axial direction and are connected to the C-P in the form of K 18 with the push rod 19. The Pa (U) barrel 17 K 18 is connected to a switchable working source environment. At the base of the holder 14 of the cutter 24 is made a hole 12 for supplying water under pressure. The chamber 17 through the throttle section is connected with the nozzle 32 via the channel 33. The device operates with both hydraulic and pneumatic units C-P. 2 sec. files, 9 3.p. f-ly, 4 ill.
    公开号:SU1269744A3
    申请号:SU843725554
    申请日:1984-04-09
    公开日:1986-11-07
    发明作者:Врулих Хервиг；Шетина Отто；Зибенхофер Готтфрид；Майер Вильфрид
    申请人:Фоест-Альпине,Аг (Фирма)；
    IPC主号:
    专利说明:

     cm
    The invention relates to the mining industry, in particular to methods of blasting rocks and devices for their implementation.
    The aim of the invention is to increase the productivity of a rock notch.
    FIG. Figure 1 shows the under-head, general view in section; fig. 2
    the holder of the cutter, with a cylinder-piston aggregate in the form of a valve, section; in fig. 3 is a section A-A in FIG. one; in fig. 4 shows an embodiment of a device operating with compressed air.
    The device for rock notching contains a notch head 1, the COTOR consists of plates 2 welded together and is rotatably mounted on a bar (not shown). The final stage of the gearbox 3 is shown by dotted lines. The notch head 1 is mounted on a support 4 connected to the bar by means of rolling bearings 5.
    Channels 6 are provided in support 4, and a distributor chamber 7, a central axial bore 8, which is respectively sealed, and radial channels adjoining to collector hollow spaces 10 passing along the axis of the notch head, in the notch head. The end plate 11 of the notch head 1 is connected with screws to the main body of the notch head. Almost radial channels 12 are conjugated with collector hollow spaces 10.
    At the end end of the central axial hole 8 there are several radial through holes 13, which during rotation of the notch head 1 intersect with radial channels. Lamy 9. This situation is shown enlarged in FIG. 3
    In the case of the holder 14 of the cutter, an opening 12 is made for supplying pressurized water to the notch head. In case of breakage of the holder 14 of the incisor, this hole can be closed with a stopper 15 in order to avoid excessive water consumption. At the base of the holder 14 of the cutter, a channel 16 is located, mated with a working chamber 17 of a hydraulic unit cylinder-por-, Shen, made in the form of a valve 18. The valve 18 has a piston 19 made in the form of a piston, hermetically
    mounted in the housing 20. The valve housing 20 has a valve saddle 21, to which, as shown in FIG. 2 the closed position adjoins the valve body.
    A spring 22 acts in the direction of the valve closing. The valve pusher 19 interacts with the cutter 23 of the cutter 24. The cutter 24 moves
    in the sleeve 25 along the axis in the direction shown by the double arrow 26, and the movement of movement is limited by the width a of the axial groove 27 in the tool bit. To limit the stroke of the cutter 24
    in the direction of the double arrow 26, a spring ring 28 is located in the sleeve, which simultaneously prevents the cutter 24. The sleeve 25 is fixed in the cutter holder 14 with a spring pin 29. The axial structure of the cutting force is shown by the arrow 30. The chamber 17 through the throttle section 31 of st Zana with nozzle 32 through channel 33.
    The method of cutting a rock into a notch head is carried out as follows.
    Water is fed through channels 6, made in support 4, into distribution chamber 7, through which it enters collector hollow spaces 10 through central axial bore 8 and radial channels 9. The working fluid is supplied under a pressure of 200 bar, in particular 300-750 bar .
    From the collector hollow spaces 10, water flows through the channels 12 through the channel 16 located at the base of the cutter holder 14 into the working chamber 17 and pushes both the valve body and the valve pusher 19 to the closed position, the spring 22 acting in the same direction.
    In the closed position of the valve 18, the cutter 24 is in the outwardly extended position. While in the working chamber 17, i.e. in the space in front of the valve seat, there is a working medium,
    权利要求:
    Claims (10)
    [1]
    the valve cannot be opened by the force of the cut even when the cutter 24 is introduced into the rock. As soon as the pressure in chamber 17 drops, i.e. as soon as the source of the working medium is turned off, the liquid from the chamber 17 through the throttle section 31 can flow to the nozzle 32, and the valve can move away from the seat. The axial component of the cutting force is able to move the valve to the open position, the volume displaced from the chamber 17, passing through the valve seat, is fed under pressure through the channel 33 to the nozzle 32. The valve is in the open position and the cutter 24 is in the shifted position as long as the workflow source is disabled. As soon as the source of the working medium is turned on again, the valve, despite the axial component of the cutting force acting on the cutter, is pushed back to the closed position, and through the valve seat and through the channels 33 water can still flow to the nozzle 32 for a short time. 18 is closed again, no noticeable liquid outflow occurs, as long as pressure is maintained in chamber 17. In this phase, there is only a slight leakage of fluid through the throttle section 31. When the pressure in the chamber 17 again disappears, the fluid from the chamber 17 again flows through the discharge channels to the nozzle, with the valve again in the open position. By periodically repeating this process, the impact movement of the cutter 24 against the direction 30 of the axial component of the cutting force is provided. Periodic loading of the chamber 17 with the working medium is shown in an enlarged view in FIG. 3. During rotational movement of the notch head around the fixed central axial bore 8, depending on the type, the gate valve alternately by means of radial through holes 13 opens or closes the connection of the working medium source to the radial channels 9 and thus to the chamber 17 in front of the valve seat. In the embodiment shown in FIG. 3, it is shown that the radial holes 13 occupy only a central angle of 120 turns of the notch head, and thus the loading of the chamber 17 in front of the valve seat occurs only in the range in which the impact notch occurs when the cutter 24 is inserted into the rock. FIG. Figure 4 shows a variant of a device for carrying out the method of cutting a rock with a notch head working with compressed air. The cutter 24 is installed with an axial movement in the sleeve 25 in the direction of the double arrow 26. The movement of movement is limited by the width of the axial groove 27 in the cutter bar, and a spring ring 28 is located in the sleeve to limit the stroke of the cutter 24, which simultaneously prevents the tool from falling out 24. The sleeve 25 is also fixed in the cutter holder 14 by a spring pin 29. A piston 34 is disposed along the cutter axis, which is brought into contact with the cutter shaft by means of a spring 35. The piston 34 has a narrowed cross section 36, which interacts with a force closure with the cutter 24, and in the embodiment shown in FIG. 4, closes the opening 37 for supplying compressed air, which is mated to the annular space 38. The piston 34 has an annular surface 39 on which the compressed air acts in the direction of the arrow 40. The lower edge 41 of the piston 34 can block the discharge opening 42. The working chamber of the piston 34 indicated by the symbol 43. The compressed air bypass 44 can be closed by the upper edge 45 of the piston 34. The notch of the rock cutting method of the notch head using a compressed air device is performed as follows: time. As a result of the reactive component of the cutting force in the direction of the arrow 30 after inserting the cutter 24 into the rock, the piston 34 is displaced to such an extent that the opening 37 for supplying compressed air is released. The compressed air now flows through the opening 37 into the annular space 38 and acts on the annular surface 39 of the piston 34 in the direction of arrow 40. The lower edge 41 of the piston 34 then blocks the discharge opening 42, as a result of which pressure can be generated in the working chamber 43 of the piston 34. After the overflow orifice 44 is blocked by the upper edge 45 of the piston 34, the compressed air from the supply screwdriver 37 enters the working chamber 43. Due to the fact that the cross-sectional area rtoptm 34, loaded in the closing direction, is significantly larger compared to the annular surface 38 acting in the direction open up the piston FOR moves forward and at the end of this movement creates a push against the cutter 24. As soon as the bottom edge 41 of the piston 34 again releases the discharge opening 42, the pressure decreases and the compressed air from the opening 37 for supplying compressed air again is able to displace the piston 34 in the direction of the arrow 40. When the cutter leaves the breakage zone, it is held by the force of the spring 35 in the forward position in which the piston 34 closes the opening 37 for supplying compressed air, so that the leech air cannot penetrate into the annular spaces 38. Claim 1. A method of notching a rock with a notch head, which incisors, moving in axial direction with a limited stroke, interact with a cylinder-piston unit, in particular with a plug, characterized in that, in order to increase the efficiency of axial blasting moving the cutter under pressure to the external position is carried out by periodically loading the unit with a cylinder-piston working medium, and the tool is shifted to its initial position in phases without loading the unit into a cylinder piston The working medium, while the volume of fluid displaced by the valve opening stroke, is removed under pressure through at least one nozzle in the direction of the incisor or the bottom of the chest.
    [2]
    2. A method according to claim 1, characterized in that the cylinder-piston assembly is in the form of a valve, the loading of which the working fluid is carried out in the closing direction, with the valve tappet being fed to the valve-closing position against the axial component of the cutting force.
    [3]
    3. Method according to paragraphs. 1-2, which is due to the fact that the working fluid is supplied under a pressure of 200 bar, in particular from 300 to 750 bar.
    [4]
    4. A device for notching a rock, a notch head, including a bar of a cutting machine of a partial cut, having at least one notch head, is equipped with a cutter located in holders with a possibility of movement in an axial direction with a limited length of different, that the cutter rods for force transfer with force closure are connected to a cylinder-piston hydraulic or pneumatic unit, the working chamber of which is connected to a switchable source of working medium.
    [5]
    5. The device according to claim 4, is about the fact that the cylinder-piston unit is made in the form of a valve, the pusher of which, in the direction of closing the valve, is connected with force closure to the tool stem, and the space in front of the valve seat is connected to a switchable source of working medium At the same time, after the valve seat, a canal is made, which connects the space in front of the valve seat with the valve open to the outlet, in particular, with the spray nozzle.
    [6]
    6. The device according to paragraphs. 4-5, about the fact that the valve pusher is located with the seal in the valve body, and its-is the cross-sectional area in such a way that the force equal to the product of this area by the working pressure of the working medium source, together with the force of the spring pushing the valve in the direction of closure, greater than the maximum value acting in the direction of the axis of the cutter constituting the cutting force.
    [7]
    7. A device according to claim 4-6, characterized in that the space in front of the valve seat is connected by a throttle section with an outlet orifice, in particular with a spray nozzle.
    [8]
    8. Device nn. 4-7, that is, that the source of the working medium is connected through a rotary slide with a hydraulic cylinder-piston unit.
    [9]
    9. The device according to paragraphs. 4-8, characterized in that the source of working medium is connected to the central axial hole in the stationary part with respect to the bar, and through through holes located in the radial direction, is connected to the channels in the rotating part of the notch head.
    [10]
    10. The device according to PP. 4-8, about aphid. Since the cylinder-piston pneumatic unit has a piston located in the cylinder, the diameter of which is increased in comparison with the part interacting with the force closure with the cutter, and the side surface of which closes the supply hole for the compressed air and the discharge chamber connected to its working chamber, and between the working chamber of the formation and the annular space on the tool side with the possibility of opening when the discharge hole is closed 11, Device according to claim 10; it is connected with the fact that the piston is connected to the spring holding it in contact with the cutter, the spring compressing force being less than the axial component of the cutting force, but greater force corresponding to the weight of the tool and the piston.
    //
    FIG 3 3
    Fy 35
    类似技术:
    公开号 | 公开日 | 专利标题
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    US1931042A|1933-10-17|Fluid pressure hammer
    同族专利:
    公开号 | 公开日
    JPS59199990A|1984-11-13|
    HUT39834A|1986-10-29|
    AU568641B2|1988-01-07|
    PL247136A1|1984-11-19|
    AU2667584A|1984-10-18|
    AT23903T|1986-12-15|
    IN162866B|1988-07-16|
    NZ207681A|1986-03-14|
    US4555143A|1985-11-26|
    MA20090A1|1984-12-31|
    JPS6332958B2|1988-07-01|
    RO90144A|1986-09-30|
    ES8507653A1|1985-09-01|
    ZA842482B|1984-11-28|
    YU58884A|1988-02-29|
    ES531451A0|1985-09-01|
    DE3461496D1|1987-01-15|
    CA1221711A|1987-05-12|
    EP0125232B1|1986-11-26|
    PL142441B1|1987-10-31|
    EP0125232A1|1984-11-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3536451A|1965-01-21|1970-10-27|Isadore Ludwin|System for cyclic pulsed pumping and fluid interaction|
    US3741316A|1968-01-16|1973-06-26|Forges Et Atellers De Meudon S|Fluid operated percussion tool|
    DE1953550C2|1969-10-24|1974-03-21|J.C. Soeding & Halbach, 5800 Hagen|Working head equipped with roller chisels of a device for removing rock, in particular a driving device for driving up routes, shafts or the like|
    DE2159351C3|1971-11-30|1981-02-26|Salzgitter Maschinen Und Anlagen Ag, 3320 Salzgitter|Drilling device with at least one cutting roller provided with an unbalance vibrator|
    AT337763B|1974-06-14|1977-07-25|Inst Gornogo Dela Sibirskogo O|PNEUMATIC IMPACT DEVICE|
    DE2810982A1|1978-03-14|1979-09-27|Gewerk Eisenhuette Westfalia|CONTROL DEVICE FOR INDOOR JUMPER ROLLERS|
    AT358510B|1978-10-19|1980-09-10|Voest Ag|DEVICE FOR COOLING THE CHISELING TOOLS OF A BREAKING MACHINE AND THE LOCAL CHEST|
    DE2854307C2|1978-12-15|1988-09-29|Kennametal Inc., Latrobe, Pa., Us|
    AT359453B|1979-02-09|1980-11-10|Voest Alpine Ag|SCREW HEAD|
    DE3021821C2|1980-06-11|1983-01-13|Gebr. Eickhoff, Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum|Chisel chisels for mining and drifting machines|
    AT369859B|1981-03-12|1983-02-10|Voest Alpine Ag|DEVICE FOR COOLING THE CHISELS OF A BREWING MACHINE|DE3661855D1|1985-03-07|1989-02-23|Hausherr & Soehne Rudolf|Turning connection|
    AT382206B|1985-04-18|1987-01-26|Voest Alpine Ag|DEVICE FOR INTERMITTENTLY PUTTING AXIAL SLIDING CHISELS OF A SCRAPER HEAD WITH PRESSURE|
    AT386252B|1986-10-29|1988-07-25|Voest Alpine Ag|Pick arrangement for a round-shank pick|
    SE463725B|1988-07-19|1991-01-14|Sandvik Ab|VALVE|
    JPH086557B2|1989-12-05|1996-01-24|株式会社イセキ開発工機|Shield type tunnel excavator|
    AU627617B2|1990-09-11|1992-08-27|Komotzki, Firma Michael|Arrangement of a spray nozzle on a chisel holder|
    GB9025934D0|1990-11-29|1991-01-16|Hydra Tools Int Plc|Mineral mining equipment etc|
    GB9717830D0|1997-08-22|1997-10-29|Minnovation Ltd|Water spray nozzle etc for mining|
    US7771249B2|2007-03-30|2010-08-10|Park Industries, Inc.|Corner saw|
    WO2011014217A1|2009-07-29|2011-02-03|George Albert Parrott|Cutting tool with nozzle for spraying water on a cutter bit|
    US8449039B2|2010-08-16|2013-05-28|David R. Hall|Pick assembly with integrated piston|
    US10201914B2|2015-01-20|2019-02-12|Park Industries, Inc.|Material loading apparatus|
    US9765618B2|2015-01-28|2017-09-19|Joy Mm Delaware, Inc.|Cutting bit assembly|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    AT128183|1983-04-11|
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