• 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:
    The invention makes it possible to increase the reliability of operation of a three-channel hydraulic distributor with an open center for the hydraulic circuit of an electric switch actuator, the moving contact K-poro is driven by a differential hydraulic cylinder. The pressure valve (K) 21 is loaded with springs16 about 00 cl S3 44 O in /
    公开号:SU1685270A3
    申请号:SU884355591
    申请日:1988-04-28
    公开日:1991-10-15
    发明作者:Ален Гратцмюллер Клод
    申请人:Клод Ален Гратцмюллер (FR)；
    IPC主号:
    专利说明:

    25 in the direction of closing, the plunger 29 of the drain K 23 acts on the K 21 in the open position. The piston 26 of the control hydraulic cylinder is connected to K 23 on the side opposite to the locking edge. The magnitude of the displacement K 23 is greater than the magnitude of the displacement K 21. The 23 is equipped with a mechanism for fixing the open position with limited resistance. A spring 33 is installed in the cavity of the cylinder, acting on K 23, a force cut higher than the force of the spring 25 loading K 21 but lower than the resistance of the fixing mechanism K 23. The open center is connected to the cylinder cavity by a channel and a throttle is installed in it. 2 hp f-ly, 3 ill.
    The invention relates to reinforcement and is intended for the hydraulic circuit of an electric switch actuator, the movable contact of which is driven by a differential hydraulic cylinder.
    The purpose of the invention is to increase the reliability of operation by providing two stable positions (discharge and injection).
    Figure 1 shows schematically the hydraulic actuator of the switch; figure 2 - valve in the position of the drain section; in FIG. 3, the same in the pumping position.
    The movable contact 1 (Fig. 1) of the switches is connected to the rod 2 extending from the piston 3 of the differential hydraulic cylinder 4. The annular chamber 5 of the hydraulic cylinder is permanently connected by channels 6 and 7 to the oil-pneumatic accumulator 8, represented by high pressure source.
    The main chamber 9 of the hydraulic cylinder has a discharge (discharge) port 10, which can be selectively connected through a three-channel distributor 11 to a battery 8 or to a low pressure reservoir 12. In the first position, the distributor 11 establishes a connection between the aperture 10 and the dispensing injection port 13 (the discharge position is indicated by solid lines); in the second position, the distributor 11 provides for communication between the opening 10 and the drain hole 14 of the distributor (the position of the drain is indicated by the dotted line).
     The switching of the distributor 11 with one of the positions is provided by the control hydraulic circuit 15, which fits to the pressure control opening 16.
    In Fig. 1, the valve is in the discharge position, the switch is in the closed position, the moving contact collects fixed contacts 17 and 18. To bring the switch to the open position, it is enough to bring the valve to the drain position, and the high pressure acting in chamber 5 pushes the piston 3 and removes the moving contact 1 from the fixed contact 18.
    The distributor 11 (FIG. 2) comprises a housing 19 having various drills that define an open center — a consumer hole 20 or a discharge (discharge) hole, which is connected by a hole 10 for injection (discharge) of the cylinder 4 (FIG. 1), discharge port 13, drain port 14 and pressure control port 16. In the axial drilling of the housing 19 is placed a discharge valve 21, which interacts with the seat 22, and a drain valve 23, which interacts with the seat 24,
    The discharge valve 21 is loaded with a spring 25 in the direction of closing. A drain valve 23 is rigidly connected to a piston 26 slidable in a drill 27, which is a hydraulic control cylinder of the distributor. The cavity 28 of the control cylinder receives through the opening 16 a control signal (high or low pressure) sent by the control loop 15.
    Referring to Fig. 2, the valves 21 and 23 are two physical independent parts that only interact through the plunger 29 rigidly connected to one of the valves, for example the drain valve 23. The valves are guided while sliding in their respective bores by the guide elements 30 , 31 and 32 so as to ensure a quality fit in their saddles.
    In the cavity 28, a spring 33 is installed, supported on one side against the body portion 34, and on the other side onto the upper surface of the piston 26 to act on the drain valve 33 in the closing direction. The force of the spring 33 is higher than the force of the spring 25, which leads to the fact that the complex of valves tends to occupy a stable position (Fig. 3) when the drain valve 23 is closed and the discharge valve 21 is open.
    The distributor has a locking mechanism (elastic half-bolt) drain valve. This mechanism has a limited resistance, chosen to hold the drain valve 23 in the open position (Fig. 2) against the force of the spring 33, which tends to close it in the absence of control hydraulic pressure on the piston 26. But this resistance is not enough to hold the drain valve 23 in the open position, when, apart from the action of the spring 33, it is subjected to the force of the control piston, which leads the drain valve 23 to the closed position (FIG. 3) and, as a result, the discharge valve 21 to the open position of.
    According to FIGS. 2 and 3, the locking mechanism has, on the one hand, on the rod 35 of the drain valve 23, a bevelled section 36, and, on the other hand, in the housing 19, an elastic pusher consisting of one or more balls 37 loaded with a spring 38 side surface of the drain valve. Open center - the hole 20 can be communicated by the channel 39 to the throttle 40, with the cavity 28 in the area of the plot 36.
    The operation of the distributor is carried out with the following.
    In the drain position (Fig. 2), which corresponds to the open position of the switch, there is no pressure in the cavity 28 of the control cylinder, while the drain valve 23 is held in the open position by supporting the bevelled portion 36 into the ball 37, and the spring force 33 alone is not enough to eliminate the resistance ball 37 on the sloping area. As the drain valve is open, it allows the discharge valve 21 to be lifted to the closed position by the action of the spring 25.
    To close the switch, a control pressure is applied to the cavity 28. The combined effect of pressure on the piston 26 and spring 33 causes the bevelled section 36 to overcome the force acting on the ball 37 from the side of the spring 38. The drain valve 23 comes to the closed position (FIG. 3) and pushes the discharge valve 21 against the spring 25 pusher 29. The discharge valve is open and high pressure through the hole 13 transmits through the hole 20 to the main chamber 9 of the differential cylinder 4 (Fig. 1). The switch comes to the closed position.
    To ensure disconnection of the switch, cavity 28 is connected to the drain.
    through the control loop 15. The high pressure acting in the consumer circuit pushes the complex drain valve - piston 26 against the force of the spring 33. The piston reaches the stop at the end of the stroke (for example, the stop of the guide element 32 into the ball or any other organic stroke system), and the drain valve 23 remains in the open position due to the fact that the bevelled portion 36 is wedged on the ball 37. At the same time, the discharge valve 21 released from the pusher 29 closes under the influence of high pressure and the spring 25 (Fig. 3), i.e. The main chamber 9 of the differential cylinder 4 (FIG. 1) is connected to the drain, and the moving contact of the switch is brought to the open position under the influence of high pressure, which constantly acts on the annular surface of the piston 3.
    When the switch is in the closed position (valve is in the discharge position, FIG. 3), a slow pressure drop occurs in the hydraulic circuit, the pressure decreases also in the cavity 28, but the valves 23 and 21 remain in the same position due to the prevailing spring force 33 drain valves, i.e. the differential cylinder 4 is not connected to the drain and the switch remains in the closed position.
    When pressure is applied to the hydraulic circuit, if the valve is in the discharge position, the main chamber 9 of the differential cylinder feeds simultaneously with the annular chamber 5 of this cylinder, therefore there is no likelihood of slow opening of the switch, therefore, there is no need for an automatic release control system in case nor in the shutdown device of such a system to keep the switch in the closed position.
    Thus, the valve has two stable positions (injection and discharge), and the fixation mechanism acts on only one drain valve.
    If the condition of a slow rise of the discharge valve 21, which is necessary for obtaining a short switch disconnection time, is observed, the movement of the drain valve 23 can be relatively long, which makes it possible to establish a reliable mechanism for fixing the complex drain valve, the auxiliary cylinder piston, and this time should be constant for which provides (FIGS. 2 and 3) a larger stroke for the drain valve 23 than for the discharge 21, and therefore
    in the draining position (Fig. 2), there is a gap or a backlash between the end of the plunger 29 of the drain valve and the top of the valve 21 for pressure
    In hydraulic actuators for electrical switches, in which the described valve is used, the command to apply pressure (or turn off pressure) into the cavity 28 of the cylinder of the three-channel distributor is a small signal, which is then held by the choke 40, i.e. hydraulic circuit, called self-supporting circuit.
    Ph ore MY of the Invention 1. A three-channel hydraulic distributor with an open center for an hydraulic circuit of an electric switch actuator, the movable contact of which is driven by a differential hydraulic cylinder containing a discharge valve loaded by a spring in the direction of closing, a drain valve with a pusher acting on the discharge valve in the open position, and the control hydraulic cylinder, the piston of which is connected to
    18
    a drain valve on the side opposite to the locking edge, and the displacement amount of the drain valve is larger than the displacement value of the discharge valve, characterized in that, in order to increase reliability in operation, the drain valve is equipped with a locking mechanism of the open position with limited resistance
    a hydraulic cylinder is fitted with a spring acting on a drain valve, the force of which is higher than the spring force that loads the discharge valve, but lower than the resistance of the fixing mechanism
    drain valve.
    . A distributor according to claim 1, characterized in that the open center is in communication with the channel of the hydraulic cylinder and a choke is installed in it.
    3. The distributor according to claim 1 or 2, about g and which is due to the fact that an annular groove with a beveled section is made on the side surface of the drain valve, and the said fixation mechanism is made in
    in the form of at least one ball loaded with a spring towards the side surface of the drain valve in the zone of the bevelled area.
    12
    nat
    Jj
    40
    13
    Ja
    权利要求:
    Claims (3)
    [1]
    1. Three-channel hydraulic distributor with an open center for the hydraulic circuit of the drive of the electric switch, the movable contact of which is driven by a differential hydraulic cylinder, comprising a discharge valve loaded with a spring towards the closing direction, a drain valve with a pusher acting on the discharge valve in the open position, and a control hydraulic a cylinder, the piston of which is connected to the drain valve on the side opposite from the locking edge, and the amount of displacement the drain valve is larger than the displacement of the discharge valve, characterized in that, in order to increase reliability in operation, the drain valve is equipped with a mechanism for fixing the open position with limited resistance, and a spring is installed in the cavity of the hydraulic cylinder, acting on the drain valve, the force of which is higher the force of the spring loading the discharge valve, but lower than the resistance of the locking mechanism 5 of the drain valve.
    [2]
    2. Distributor pop. 1, distinguishing with the fact that the open center is communicated by the channel with the cavity of the hydraulic cylinder and a throttle is installed in it.
    [3]
    3. The distributor according to claim 1 or 2, characterized in that an annular groove with a beveled portion is made on the lateral surface of the drain valve, and said fixation mechanism is made in the form of at least one ball loaded with a spring towards the lateral surface of the drain valve in the area of the sloping area.
    figure 1
    FIG. 3
    Compiled by L. Semenov Editor M. Kelemesh Tehred M. Morgenthal Corrector M. Pozho
    Order 3518 Circulation Subscription
    VNIIIPI of the State Committee for Inventions and Discoveries under the State Committee for Science and Technology of the USSR 113035, Moscow, Zh-35, Raushskaya nab., 4/5
    Production and Publishing Combine Patent, Uzhgorod, 101 Gagarin St.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1685270A3|1991-10-15|Three-channel hydraulic distributor with open center
    US8282020B2|2012-10-09|Three-way valves and fuel injectors using the same
    US3969985A|1976-07-20|Fluid actuating device for an electric circuit breaker
    JPH07103942B2|1995-11-08|Hydraulic pilot valve device
    US6354185B1|2002-03-12|Flow manager module
    US6263913B1|2001-07-24|Hydraulic multiway valve
    KR100389445B1|2003-06-27|Liquid pressure operating apparatus
    US3832502A|1974-08-27|Electric circuit breaker with hydraulic actuating means including a plurality of valves for opening the breaker,and a plurality of valves for closing the breaker
    US5301920A|1994-04-12|High-speed solenoid valve apparatus
    US4748896A|1988-06-07|Safety valve assembly
    KR20130031320A|2013-03-28|Directional control valve device
    KR100505379B1|2005-07-29|Hydraulic apparatus for circuit breaker
    RU2039388C1|1995-07-09|Hydropneumatic drive for breaking and closing of switch contacts
    KR970010000B1|2020-04-06|Flow rate control valve device and flow force reduction structure
    US20060207530A1|2006-09-21|Direct pressure feed air bleed system
    TWI224170B|2004-11-21|Hydraulic pressure actuating apparatus for circuit breaker
    JPH0771642A|1995-03-17|Three-way fluid control valve with check valve
    KR960004705B1|1996-04-12|Hydraulic booster device for braking circuit
    RU2267660C1|2006-01-10|Electro-hydraulic servo drive
    KR960015253B1|1996-11-04|Transmission controller
    SU1386757A1|1988-04-07|Hydraulic control distributor of shaft powered support
    SU1268832A2|1986-11-07|Power cylinder
    KR0119581B1|1997-10-30|A position controller
    KR0119578B1|1997-10-30|A continuous position controller
    SU1100438A1|1984-06-30|Hydraulic control valve
    同族专利:
    公开号 | 公开日
    ZA882779B|1988-10-20|
    HU200823B|1990-08-28|
    KR880012933A|1988-11-29|
    KR920003385B1|1992-04-30|
    HUT46957A|1988-12-28|
    AT54735T|1990-08-15|
    YU83088A|1990-12-31|
    CN1009300B|1990-08-22|
    FI85535B|1992-01-15|
    EP0289386A1|1988-11-02|
    CS277565B6|1993-03-17|
    FI881968A|1988-10-30|
    AU1508188A|1988-11-03|
    DE3860319D1|1990-08-23|
    CN88102464A|1988-11-30|
    JPS63285374A|1988-11-22|
    YU47283B|1995-01-31|
    FI85535C|1992-04-27|
    CA1290650C|1991-10-15|
    ES2016122B3|1990-10-16|
    CS285288A3|1992-09-16|
    US4794950A|1989-01-03|
    FR2614669B1|1989-07-13|
    IN171117B|1992-07-25|
    FI881968A0|1988-04-27|
    JPH06100292B2|1994-12-12|
    FR2614669A1|1988-11-04|
    EP0289386B1|1990-07-18|
    BR8802059A|1988-11-29|
    AU595760B2|1990-04-05|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU199145U1|2020-03-10|2020-08-19|Федеральное государственное бюджетное образовательное учреждение высшего образования «Национальный исследовательский Мордовский государственный университет им. Н.П. Огарёва»|Distribution outlet valve for diaphragm pump|GB178232A|1921-01-25|1922-04-20|Richard Redman Huddleston|Improvements in or relating to working valves for use in connection with hydraulic machinery|
    FR1098565A|1954-01-15|1955-08-08|Hydraulic control device for circuit breaker, or the like|
    CH550332A|1972-10-02|1974-06-14|Bbc Brown Boveri & Cie|HYDRAULIC PILOT VALVE.|
    GB1516984A|1974-08-13|1978-07-05|Wallis C|Method and apparatus for producing adhesive labels|
    FR2317532B1|1975-07-07|1978-12-29|Gratzmuller Jean Louis|
    DE2654035A1|1976-11-27|1978-06-01|Witt Paul Fa|Mixer valve esp. for two components - has two opposed valve plungers separated by adjustable spacer rod|
    DE2705914C2|1977-02-09|1982-06-16|Siemens AG, 1000 Berlin und 8000 München|Reversing valve|
    DE8300760U1|1983-01-13|1984-11-08|Beringer-Hydraulik GmbH, Neuheim, Zug|Reversing seat valve|US5123449A|1989-10-20|1992-06-23|Dema Engineering Company|Selector valve|
    US5377718A|1993-07-09|1995-01-03|Hydro Systems Company|Selecting and dispensing valve|
    US5566710A|1994-09-29|1996-10-22|Dana Corporation|Pre-detent tactile feedback assembly for a fluid control valve|
    DE19616646A1|1996-04-26|1997-11-06|Mann & Hummel Filter|Valve for liquids|
    US5653261A|1996-06-28|1997-08-05|Hydro Systems Company|Selector valve|
    JP3959562B2|1997-10-20|2007-08-15|Ｓｍｃ株式会社|Pilot type switching valve|
    US6467751B1|1999-11-24|2002-10-22|Carleton Technologies, Inc.|Inflation valve|
    US6431209B1|2000-03-16|2002-08-13|Ross Operating Valve Company|Multi-pressure ball-poppet control valve|
    DE102004061861B4|2004-12-22|2008-06-19|Brueninghaus Hydromatik Gmbh|Pressure cut valve unit and hydraulic circuit provided therewith|
    CN101749447B|2008-12-03|2010-12-29|徐州重型机械有限公司|Flow control valve|
    US8522818B2|2009-03-30|2013-09-03|Sti Srl|Booster valve|
    US8631826B2|2010-09-15|2014-01-21|Fisher Controls International Llc|Volume booster with stabilized trim|
    CN102623264A|2012-04-23|2012-08-01|沈阳东北电力调节技术有限公司|Slow opening-proof device for hydraulic control mechanism of high voltage circuit breaker|
    KR101341398B1|2013-04-29|2013-12-13|서진정공|3-way valve|
    CN104595530B|2015-01-27|2017-02-08|潍柴西港新能源动力有限公司|Pressure-regulating device for dual-fuel engine|
    CN105135143B|2015-06-18|2017-12-05|山东钢铁股份有限公司|A kind of freezing prevention tubing water trap and its application method|
    US10293949B2|2016-01-20|2019-05-21|Goodrich Corporation|Inflation system pressure regulator with leakage vent|
    CN105840841B|2016-05-09|2018-01-02|贵州大学|A kind of Multi-functional hydraulic combination valve|
    CN108006263B|2017-12-01|2019-06-25|江苏嘉亦特液压件有限公司|Open type guide type electromagnetic ball valve|
    法律状态:
    2010-07-20| REG| Reference to a code of a succession state|Ref country code: RU Ref legal event code: MM4A Effective date: 20070429 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR8706077A|FR2614669B1|1987-04-29|1987-04-29|THREE-WAY HYDRAULIC VALVE|
    [返回顶部]