• 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:
    1. Arrangement for cooling the cutter teeth of the cutting tool of a cutting machine and the breast and for precipitating dust, in particular of the cutting tool formed by at least one rotating cutter head (28) on the movable cutting arm of a cutting machine, wherein the cutter teeth are only temporarily in engagement with the rock to be cut, and of the breast, by means of nozzles (22, 32) for the coolant disposed on the cutting tool and associated with individual cutter teeth, control means being provided that permit the supply of coolant to the nozzles only during the period of time at which the cutter teeth associated with the respective nozzles are in engagement with the rock, characterized in that as coolant water without admixture of air is used in a manner known per se and that the cutter tooth shank (4, 22) of the cutter tooth is axially slidably mounted in the tooth holder (2, 34) and resiliently supported against the cutting pressure, the supply of coolant being controlled by means of a valve (13, 31) acted upon through the displacement motion of the cutter tooth and housed in the tooth holder (2, 34).
    公开号:SU1266476A3
    申请号:SU792827301
    申请日:1979-10-05
    公开日:1986-10-23
    发明作者:Цитц Альфред；Шетина Отто；Врулих Хервиг
    申请人:Фоест-Альпине Аг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the mining industry, in particular to the executive bodies of mining machines. The purpose of the invention is to increase fire safety while saving water. Figure 1 shows the executive body, section; Figures 2 and 3 are embodiments of an executive body; FIG. 4 shows a forge machine with an executive body, general view. The actuator is a body 1 welded to the working head 2. A sleeve 3 is pressed into the body 1, inside which is installed the cutter shank 4, which can be moved in the direction of its axis 5, 1 Figure 1 shows the position at which the cutter shank 4 is pressed back on the size of the gap 6 in the direction of the spring 7, while the annular shell 8 abuts the flange 9 of the sleeve 3. In the housing 1 there is a sleeve 10, inside which is located the piston 11 with the seal. When the tool bit 4 is pressed back on the gap 7 , the piston 11, which interacts with the shell 8, moves in the direction of the arrow 12 and the rod 13 presses the ball valve 14 to drive it. In the position in which the ball 14 moves away from the valve seat 15. Water for cooling is given through the opening 16 into the chamber 17, from where, through the open. valve seat 15 into chamber 18 on the other side of the ball and from there along channel 19 in sleeve 10 and hole 20 in housing 1 into an annular chamber 21 formed by a groove of sleeve 3, and then through hole 22 enters the nozzle 23. Thus when loading the cutter shank 4, water is sprayed from the nozzle by the cutting force and enters the groove 24 formed in the breast cutter 25, from where it falls on the cutter. The ball 14 is held on the valve seat due to water pressure, and in the open position it is held close to the valve seat 15 by means of a rib 26. Springs can be set by pressing the ball 14 in the closing direction. A shield plate 27 is provided covering the piston 11 and restricting the movement 62 of this piston. The struc- ture coming out of the nozzle creates a water curtain that extinguishes the sparks produced when the tool is inserted into the rock. In this case, the cutter is cooled only by indirectly reflected water. Water is supplied to the nozzle 23 at a pressure of more than 25 bar, thereby preventing the nozzle from being pinned. The outflow velocity in a; s from the nozzle is about 90 m / s. In another embodiment, the rivets 29 and the nozzle 30 are installed on the side of the cutter 31, opposite the axis of the actuator. The cutter shank is also mounted so that it can be moved within the cutter body 32 of the cutter, with a movement path of approximately 2 mm provided. The sleeve 33 mounted in the housing 32 includes a valve wicker and forms the valve seat 35, the valve ball 34 is pressed against the valve seat in the closed position by means of a spring 36, the rod 37 of the valve ball 34 is installed in the ring 38, provided with a seal. On the end 39 protruding from the sleeve 33, an annular protrusion 40 is provided, which interacts with the rear end 41 of the shank of the cutter 31. Under the action of the spring 36, the cutter moves to the unloaded position when the working pressure is removed from it. Water from the notching head 42 flows through the opening 43 into the channel 44 in the body of the actuator, from this channel flows through the passage 45 of the sleeve 33 into the chamber in front of the ball 34. Chamber 47 in front of the nozzle 34 directly adjoins chamber 47 in front of the nozzle 30, therefore, a pressure drop between the valve 29 and the nozzle 30 does not occur. Due to this, in the chamber 47 in front of the nozzle 30 a considerable pressure of water can be created, for example 200 bar, as a result of which a powerful jet of water 48 is formed. In the chamber 47 in front of the nozzle 30 a grid 49 can be installed. A threaded pin 50 is provided that enters the annular groove 51 cutter shank, protecting cutter from falling out. The working head 52 (FIG. 4) is equipped with incisors with nozzles according to FIG. 1, placed at the bottom of the chest.
    25 and rotates in the direction of the arrow 53. When the notch is bottom-up, a decreasing chip is formed, and when the notch is up-down, an increasing
    shavings. In both cases, the water jet 28 coming out of the nozzle is supplied to the groove formed in the region 54 formed by the chisel.
    , eight ./
    权利要求:
    Claims (8)
    [1]
    1. EXECUTIVE BODY OF MINING MACHINES, which contacts the rock only periodically, containing a body with longitudinal holes, one of which is placed with the possibility of axial movement of the cutter with the working head and shank, and the other has a mechanism for regulating fluid flow with a valve and a pusher, water supply channels and nozzles for the cooling medium, distinguished by the fact that, in order to increase fire safety while saving water, the pusher is made with a protrusion interacting with the cutter, the nozzle p found on the rear casing on the side opposite the working head axis, and the valve controlling the supply of cooling medium to the nozzles * is disposed in the housing on the side facing, the working head axis.
    [2]
    2. The executive body according to claim 1,. characterized in that the working head of the cutter is made with an annular collar interacting with the protrusion of the pusher.
    [3]
    3. The executive body under paragraphs. 1 and 2, characterized in that the pusher is formed by a piston mounted with a seal and provided with a rod acting on the valve body, and the valve is equipped with a ball that is held in the closed position due to the supply pressure of the cooling medium.
    [4]
    4. The executive body under paragraphs. 13, characterized in that the nozzle and valve with a pusher are located on one side relative to the cutter.
    [5]
    5. The executive body under paragraphs. 1-4, characterized in that the valve ball is pressed against the valve seat by a spring compressible against the direction of the working force acting on the cutter.
    [6]
    6. The executive body under paragraphs. 15, characterized in that the chamber in front of the nozzle directly adjoins the chamber behind the valve seat, and the protrusion of the pusher is arranged to interact with the shank of the cutter.
    [7]
    7. The executive body under paragraphs. * 1-6, characterized in that the pressure of the water supply before the nozzle is at least 20 bar, preferably more than 25 bar.
    [8]
    8. The executive body according to claim 17, wherein the pressure of the water supply in front of the nozzle is 200 bar or higher.
    »SU 1266476 AZ ί
    类似技术:
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    US2461530A|1949-02-15|Rock drill
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    CA1087939A|1980-10-21|Compressed air operated setting device
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    CS256360B2|1988-04-15|
    MA18567A1|1980-07-01|
    ZA793915B|1980-07-30|
    EP0010534B1|1982-07-21|
    YU41877B|1988-02-29|
    ES485476A1|1980-05-16|
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    引用文献:
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    RU2594234C2|2011-01-11|2016-08-10|Джой ММ Делавэр, Инк.|Cutting tool assembly |DE1187569B|1958-06-10|1965-02-25|Bergwerksverband Gmbh|Device for dust control in peeling coal extraction|
    GB1110763A|1963-10-29|1968-04-24|Coal Industry Patents Ltd|Dust suppression means for use with mining machines|
    DE1283777B|1967-11-22|1968-11-28|Austin Hoy And Company Ltd Sta|Interchangeable chisels with chisel holder and with feeds for liquid|
    GB1244789A|1969-11-06|1971-09-02|Coal Industry Patents Ltd|Dust-suppression means for a mineral mining machine|
    SU619642A1|1976-05-24|1978-08-15|Ордена Трудового Красного Знамени Институт Горного Дела Им. А.А.Скочинского|Work-performing member|
    SU621873A1|1977-04-12|1978-08-30|Центральный Научно-Исследовательский И Проектно-Конструкторский Институт Проходческих Машин И Комплексов Для Угольной,Горной Промышленности И Подземного Строительства"|Entry-driving machine work-performing member|
    DE7801940U1|1978-01-23|1978-05-03|Demag Ag, 4100 Duisburg|SCREW CHISEL FOR SOLVING STONE|DE2854307C2|1978-12-15|1988-09-29|Kennametal Inc., Latrobe, Pa., Us|
    DE8013540U1|1980-05-20|1980-10-30|Bergwerksverband Gmbh, 4300 Essen|WATER NOZZLE WITH SELF-CLEANING DEVICE|
    DE3021821C2|1980-06-11|1983-01-13|Gebr. Eickhoff, Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum|Chisel chisels for mining and drifting machines|
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    DE3234993C2|1982-09-22|1987-08-13|Bergwerksverband Gmbh, 4300 Essen, De|
    DE3242137C2|1982-11-13|1985-06-05|Ruhrkohle Ag, 4300 Essen|Damped, guided pick|
    DE3302103C1|1983-01-22|1984-06-20|Krampe & Co Fertigung in Bergbaubedarf GmbH, Zweigniederlassung Pelkum, 4700 Hamm|Scraper roller|
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    NZ207681A|1983-04-11|1986-03-14|Voest Alpine Ag|Vibrating tooth cutter for rock|
    US4569558A|1983-07-25|1986-02-11|The Regents Of The University Of California|Drag bit construction|
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    法律状态:
    优先权:
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