• 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:
    Hydraulic drilling apparatus, particularly for rock drilling, in which a hydraulic feed motor (3) for the advance of the drill assembly (10, 11, 12) is supplied with oil under pressure by way of a supply line (13). A relief valve (18) in a relief line (16) leading to a tank (17) is controlled by the pressure in a flush line (31) supplying a flushing medium to the drill bit (12). The flushing medium flows through chambers on both sides of a membrane (25) the chambers being separated by a throttle. The valve body (19) is urged to a position opening the relief line (16) by a spring (30) to stop the feed motors (3) if there is a failure of the flushing medium supply through the supply line (32) or if the drill bit (12) becomes clogged preventing further flow of the flushing medium, either condition causing equalization of chamber pressures. The throttle (27) is in the membrane or housing and may be variable. <IMAGE>
    公开号:SU955869A3
    申请号:SU792856949
    申请日:1979-12-21
    公开日:1982-08-30
    发明作者:Мантен Хайнрих
    申请人:Зальцгиттер Машинен Унд Анлаген Аг (Фирма)；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION The invention relates to the mining industry, in particular to hydraulic actuators for the delivery of drilling machines. A drilling machine is known, which includes a rotator of a drill pipe string and a feed hydraulic motor, the cavities of which are connected via a hydraulic distributor with a pressure and drain lines tl. The closest to the present invention is a drilling machine, including a flushing agent supply pipeline, containing a flushing pipeline and a flushing pipeline, a supply hydraulic motor to which the hydraulic system is connected to the supply pipeline, and a spool valve that connects the hydraulic flow generator to the oil tank 121 However, in known devices it is not (It is provided. To automatically stop the supply of a string of drill pipes when it is jammed, which reduces its reliability. Aim and The invention is an increase in the reliability of the machine due to the automatic stopping of the supply of drill pipe strings when it is jammed. , and another with the column flushing line, the membrane being connected through the connecting element to the valve spool. In addition, the chamber of the spool valve is connected by a pipeline in which the choke is located, and the membrane is made with a hole in which the choke is located. FIG. 1 shows a hydrokinematic diagram of the machine} in FIG. 2, an embodiment of a spool valve. A frame 2 columns 3 of drill pipes and a hydraulic motor 4 of the feed, made in the form of a hydraulic cylinder, are mounted on the frame D of the drilling machine. The cylinder 6 is fixed on the rod 5 of roller 6 interacting with chain 7 connected to frame 1 and carriage 8 of rotator 2. Cavities 9 The 10 feed hydraulic motors 4 are connected by hydrolines 11 and 12 to the distributor 13, which is connected to the oil tank 15 by the hydraulic line 14, and the hydraulic line 16 to the power supply source,. The cavity 10 of the hydraulic motor 4 innings is connected by hydrolines 12 and 17 to the gold valve 18. connected by hydroline 19 to the oil tank 15. The slide valve 18 consists of spools 21 located in the housing 20, membranes 22 and springs 23. Membrane 22 forms in the housing 20 chambers 24 and 25, which communicate via a throttle 26 placed in the membrane 22, or through the channels 27, 28 and 29 of the housing, the latter of which has a throttle 30. Membrane 22 is connected to the spool 21 through a connecting element 31. The discharge pipe 32 of the flushing pump is connected to the chamber 24, and chamber 25 is connected to flushing 5 by pipe 33 of the column and through it to the internal core of column 3 of the drill pipe. Thus, the flushing agent from the injection pipe 32 enters the internal cavity of the crown of 3 drill pipes through the throttle of the spool valve 18.. The rotator 2 provides rotation, and the hydraulic motor 4 of the feed - feed at the bottom of the drill pipe string 3. When the flushing agent moves through the throttle 2 or 30, a differential pressure in the chambers 24 and 5 is provided, under the action of which the valve 21 moves, separating the hydraulic lines 1.7 and 19, and the valve 18 does not prevent the delivery of the drill pipe string 3 by the hydraulic flow 4. When the drill pipe string 3 is sticking in the well, the working agent movement through the throttle stops, the pressure in chambers 24 and 25 is equalized, and the spring 23 moves the spool 21 together with hydraulic lines 17 and 19. downhole with the oil tank 15, whereby the flow of the drill string string 3 is stopped, which increases the reliability of the drilling rig. Claim 1. A drilling machine including a flushing agent supply pipe / containing a discharge pump for a pump and a flushing column pipe, a feed hydraulic motor to which the hydraulic system is connected to the feed pipe, and a spool valve connecting the working cavity of the feed hydraulic motor with the oil tank, It is due to the fact that, in order to increase reliability by ensuring the automatic stopping of the supply of the drill string pipes when it is jammed, the spool valve is equipped with odpruzhinennoy membrane separating the enclosure into two chambers through the associated reactor, one of which is associated with Nagnetatelnymtruboprovodom washing pump, and the other - with flushing pipe string, wherein the membrane is bonded through the connecting member with the valve spool. 2. The machine tool according to claim 1, characterized in that the chambers of the spool valve are connected by a pipeline, in which the throttle is located. 3. The machine according to Claim 1 is different from the fact that the membrane is made with a hole in which the choke is located. . Sources of information taken into account in the examination. 1.Patent of Great Britain, No. 1.238.109, cl. E IF, publ. 1971, 2. USSR author's certificate No. 584290, class E 21 C 1/10, 1973 (prototype).
    权利要求:
    Claims (3)
    [1]
    Claim
    1. A drilling rig, including a pipeline for supplying a flushing agent, containing a discharge pipe. flush pump wire and column flush pipe, hydraulic feed motor, to which the hydraulic system is connected to the supply pipe, and a spool valve connecting the working cavity of the feed hydraulic motor with the oil tank, which is designed to increase reliability by providing automatic stop of the drill pipe string supply when it is stuck, the spool valve is equipped with a spring-loaded membrane that divides the body into two chambers connected through the throttle, one of which is connected to the Injection the rinsing of the washing pump, and the other with the washing pipe of the column, and i membrane is connected through a connecting element to the valve spool.
    [2]
    2. Machine on π. 1, characterized in that the spool valve chambers are connected by a pipeline to which the throttle is located.
    [3]
    3. Machine on π. 1, characterized in that the membrane is made with a hole in which the throttle is located.
    类似技术:
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    GB755207A|1956-08-15|Improvements in or relating to well drilling systems and methods of operating such systems
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    GB2275069A|1994-08-17|Down hole installations
    同族专利:
    公开号 | 公开日
    PL122671B3|1982-08-31|
    PL219889A1|1980-07-14|
    DE2855575C2|1985-11-21|
    GB2037630B|1982-08-18|
    JPS5585793A|1980-06-28|
    GB2037630A|1980-07-16|
    DE2855575A1|1980-07-03|
    FR2448622A2|1980-09-05|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    BE509356A|
    AT39641B|1908-07-20|1909-11-10|Benedikt Oehlen|Device for the automatic shutdown of the drive on flushing drills when the water flow after the drill bit is interrupted.|
    FI56722C|1975-07-24|1980-03-10|Tampella Oy Ab|HYDRAULISK BORRMASKIN SPECIELLT BERGBORRMASKIN|FI830402L|1983-02-04|1984-09-13|Tampella Oy Ab|FOERFARANDE OCH ANORDNING FOER STYRNING AV FUNKTIONEN AV EN BORRMASKINS MATNINGSMOTOR.|
    FR2595604B1|1986-03-14|1988-05-27|Annecy Electronique Sarl|PROGRAMMABLE CLOCK MONITORING AND STOPPING DEVICE FOR AUTOMATIC TURNING LATHES|
    US5033266A|1989-08-25|1991-07-23|Ingersoll-Rand Company|Overcenter valve control system and method for drilling|
    FI904366A0|1989-11-08|1990-09-04|Sulzer Ag|HYDRAULIC BORROWING FOR OVERFLOWERS FOR ANALYZING.|
    GB9025340D0|1990-11-21|1991-01-02|Mercol Descaling Co Ltd|Pipeline boring apparatus|
    FI118778B|2006-06-01|2008-03-14|Sandvik Mining & Constr Oy|A method for controlling the operation of a rock drilling machine and a rock drilling machine|
    DE102008042846A1|2008-10-15|2010-06-02|Hilti Aktiengesellschaft|Drilling device and drilling method|
    CN110549157B|2019-09-10|2020-04-14|深圳市精雕数控设备有限公司|Numerically-controlled machine tool stable in use and high in precision|
    CN110744098A|2019-11-08|2020-02-04|青岛新力通工业有限责任公司|High-efficient deep hole broaching and boring machine|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19782855575|DE2855575C2|1978-12-22|1978-12-22|Hydraulic drill|
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