• 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 hydraulic percussion apparatus comprising a body, a cylinder in the body and a percussion piston reciprocating in the cylinder. A distributing valve moves in a valve housing. A valve for starting and stopping the percussion apparatus is provided. A hydraulic pump and hydraulic channels form a percussion circuit with a gas/liquid pressure accumulator. A distributing valve circuit and a free circulation circuit are provided for the pump which are parallelly coupled with the percussion circuit, which circuits are connected to the pump and to the start-and-stop valve which has positions for controlling pressure in the circuits. The start-and-stop valve has a middle position during which pressure in the percussion circuit rises up to a predetermined value while the distributing valve circuit remains closed independent of the pressure in the percussion circuit.
    公开号:SU1375117A3
    申请号:SU802942254
    申请日:1980-06-25
    公开日:1988-02-15
    发明作者:Карру Эса；Салми Пекка；Паасонен Ханну
    申请人:Ой Тампелла Аб (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to hydraulic impact devices and can be used in construction and installation works.
    The purpose of the invention is to increase the reliability and durability due to the valve, which ensures the start and stop of the device.
    The drawing shows a hydraulic impact device, a longitudinal section.
    The hydraulic percussion device comprises a housing 1, a cylinder 2 with a shock piston 3 and a mobile distribution valve 4 located therein. A starting valve 5 with shut-off means 6-8, a hydraulic pump 9 and hydraulic channels forming the impact circuit 10 with a gas-liquid accumulator 11 and the circuits 12 and 13 of the distribution valve 4 and the free circulation circuit 14 connected to the hydraulic pump 9 and the starting valve 5 installed in two positions, the first of which is the stop position of the device, and in it, the free circulation circuit 14 is open, and the circuit 12 of the distribution valve 4 is connected to the shut-off means 8, and in the second (II) position, the free circulation circuit 14 is connected to the shut-off means 6, and the distribution valve 4 is open. The device is provided with a throttling means 15 connected to the free circulation circuit 14, to install the start valve in the third (III) intermediate between the first and second position, and the circuit 12 of the distribution valve 4 is connected to the shut-off means 7,
    To install the starting valve 5 in the fourth (IV) position, intermediate between the third and second, the free circulation circuit 14 is connected to a throttling agent, and the circuit 12 of the distribution valve 4 is open
    Hydraulic device work50
    em as follows ..
    In the initial position of the starting valve 5, the hydraulic percussion device does not function, since the free circulation circuit 14 is open, and the circuit 12 of the distribution valve 4 is connected to the shut-off means 8, t, e, is closed, which prevents the distribution valve i
    5 0 0 5 0
    five
    0
    with
    4. When the valve 5 is switched sequentially, the free circulation circuit 14 of the pump 9 is connected to the throttling means 15, and the shut-off means 7 is connected to the circuit 12 of the distribution valve 4, which leads to an increase in pressure in the shock circuit 10, which charges the accumulator 11 to when the circuit 12 of the distribution valve 4 is opened. This prevents the hydraulic impact device from starting at too low a pressure,
    After sequential switching of the valve 5, the free circulation circuit 14 is also connected to the throttling means, but the circuit 12 of the distribution valve 4 is open, which keeps the pressure in the shock circuit 10 at a predetermined level. Opening the circuit 12 of the distribution valve 4 ensures its movement and the launch of the hydraulic impact device.
    After the next switching of the valve 5, the shut-off means 6 is connected to the circuit 14 of free circulation and the circuit 12 of the distribution valve 4 is opened. The hydraulic impact device is under full pressure and the blow reaches the maximum force.
    When valve 5 is located between the penultimate and last indicated positions, the impact power is adjusted from the value corresponding to the minimum value at start-up to the maximum impact value.
    The invention makes it possible to increase the reliability and durability of the device by making throttling means connected to the free circulation circuit for setting the starting valve to an intermediate position at which the distribution valve chain is connected to the shut-off means or opened,
    F. formula
    A hydraulic percussion device comprising a housing, a cylinder with a shock piston and a distribution valve movable in the axial direction, a starting valve with shut-off means, a hydraulic pump and hydraulic channels.
    3 13751174
    forming an impact circuit with gas-liquid circulation is connected to a cut-off accumulator of pressure and a capping agent, and the distribution circuit of the distribution valve and a positive valve is open, about one minute and free circulation, connected, in particular,
    hydraulic pump and starting to increase reliability and durability
    valve installed in two polo devices, the starting valve is made
    the first of which is with a butterfly valve in the circuit
    the stop position of the free circulation device for installation
    and in it the chain of free circulation from the starting valve to the intermediate closed and the distribution valve circuit, the position between the first and the second popana is connected to the shut-off device, and the distribution valve circuit, and in the second position, the free valve circuit is connected to cutting means.
    权利要求:
    Claims (1)
    [1]
    Claim
    A hydraulic shock device comprising a housing, a cylinder placed therein with a shock piston and an axially movable control valve, a start valve with shut-off means, a hydraulic pump and hydraulic channels forming a shock circuit with a gas-liquid pressure accumulator and control valve circuits and free circulation, connected to a $ hydraulic pump and a start valve installed in two positions, the first of which is the stop position of the device, and in it free circulation circuit open * and the control valve circuit is connected to the shut-off device, and in the second position, the free circulation circuit is connected to the shut-off device and the distribution valve circuit is open, characterized in that, in order to increase the reliability and durability of the starting device the valve is made with a throttling flap in the free circulation circuit to install the start valve in an intermediate position between the first and second position, and the distribution valve circuit is connected to the shut-off valve means.
    类似技术:
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    KR20010113644A|2001-12-28|Accumulator-supported control of the injection quantities in large diesel engines
    SU785511A2|1980-12-07|Mine roof support unit control device
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    SU694717A1|1979-10-30|Shut-off device
    同族专利:
    公开号 | 公开日
    FR2462238A1|1981-02-13|
    AU533678B2|1983-12-08|
    DE3023610A1|1981-01-29|
    IT8022978D0|1980-06-24|
    NO147235B|1982-11-22|
    DE3023610C2|1988-03-31|
    ZA803822B|1981-07-29|
    AU5944480A|1981-01-08|
    FI60151B|1981-08-31|
    FI792019A|1980-12-27|
    GB2054753A|1981-02-18|
    SE443113B|1986-02-17|
    US4343227A|1982-08-10|
    PL225237A1|1981-05-22|
    SE8004673L|1980-12-27|
    JPS6055273B2|1985-12-04|
    FR2462238B1|1982-12-10|
    PL136259B1|1986-02-28|
    IT1131654B|1986-06-25|
    RO84373A|1984-08-17|
    NO147235C|1983-03-02|
    CS221922B2|1983-04-29|
    FI60151C|1981-12-10|
    CA1127046A|1982-07-06|
    CH647972A5|1985-02-28|
    NO801884L|1980-12-29|
    GB2054753B|1983-04-13|
    AT370666B|1983-04-25|
    JPS5635801A|1981-04-08|
    ATA320880A|1982-09-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2581324C2|2013-03-04|2016-04-20|Тмт-Ббг Рисерч Энд Девелопмент Гмбх|Control of operating frequency of shock mechanism|DE1703727A1|1968-07-03|1972-03-02|Orenstein & Koppel Ag|Hydraulic impact device|
    DE1703753A1|1968-07-05|1972-02-24|Ingbuero Dipl Ing Friedrich He|Hydraulically operated impact device|
    SU402643A1|1971-05-14|1973-10-19|В П Т Б БФи; ^ д;: inu ;; i: FHS ^ AuthorsВ. M. Kotalevsky and V. D. Nikonov|
    DE2217507B1|1972-04-12|1973-08-09|Bauer, Karlheinz, Dr.-Ing., 8898 Schrobenhausen|Hydraulic hammer and its use for hammer drill|
    FI50941C|1974-04-25|1976-09-10|Tampella Oy Ab|Impactor for pressurized fluid.|
    US4026193A|1974-09-19|1977-05-31|Raymond International Inc.|Hydraulically driven hammer system|
    FI751895A|1975-06-26|1976-12-27|Xandor Ag|
    FR2357336B1|1976-07-09|1981-09-18|Malfit Jean|
    AU503742B2|1976-10-18|1979-09-20|Dobson Park Industries Limited|Percussive tool|
    GB1556754A|1976-12-10|1979-11-28|Af Hydraulics|Hydraulically-actuated percussive device with overstroke damping|
    JPS5819433B2|1977-03-17|1983-04-18|Nippon Nyuumachitsuku Kogyo Kk|AU597152B2|1987-02-25|1990-05-24|Salzgitter Maschinenbau Gmbh|System with a hydraulic lifting generator for earth drilling|
    CA2148394A1|1994-05-03|1995-11-04|Alexander William Rowe|Starting and stopping of hydraulic reciprocating machines|
    US5730230A|1995-08-15|1998-03-24|Sisler; John S.|Rotary percussion drill|
    AT407919B|1998-01-19|2001-07-25|Boehler Pneumatik Internat Gmb|PNEUMATICALLY OR HYDRAULICALLY OPERATING HAMMER AND USE OF THE HAMMER TO OPEN OR SEAL A TAP OPENING OF A METALLURGICAL VESSEL|
    DE19804078A1|1998-02-03|1999-08-05|Krupp Berco Bautechnik Gmbh|Fluid powered striking mechanism|
    FI106618B|1998-03-30|2001-03-15|Sandvik Tamrock Oy|Arrangement in connection with a pressurized-impact device such as a breaking device|
    NO337771B1|2015-03-18|2016-06-20|Resonator As|Percussive hammering assembly|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI792019A|FI60151C|1979-06-26|1979-06-26|HYDRAULISK SLAGANORDNING|
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