• 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 relates to reinforcement and can be used to fljjH actuation of a slewing crane. The aim of the invention is to increase reliability by eliminating the possibility of damage to structural elements during transport and operation. The actuator contains a power cylinder 2, the power element of which is connected to the drive shaft 5 and is equipped with a distribution system containing a check valve, a compensation valve with a pusher 171 and a return spring 18, which in the extreme position of the power element ensures that pressure from the working chamber of the power cylinder enters the accumulator chamber 10, and a choke in the form of a metal-ceramic partition to ensure the return stroke of the power element. 2 hp f-ly, 8 ill. and S SB JJ Yu J9, f7 I 6 N3 CO co
    公开号:SU1299521A3
    申请号:SU843748575
    申请日:1984-06-06
    公开日:1987-03-23
    发明作者:Бонафу Морис
    申请人:Аппликасьон Меканик Э Робинеттри Эндюстриель Амрэ (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a reinforcement and can be used to actuate a rotary crane.
    The aim of the invention is to increase the reliability of operation by eliminating the possibility of damage to structural elements during transportation and operation.
    Figure 1 shows the actuator clap-10 covering the power element, and
    thirty
    and in the initial non-working position, general view in section; figure 2 - that is, in the extreme working position of the strong element; on fig.Z - part of the CI element with the distribution system in the initial position; Fig. 4 is a hydraulic circuit corresponding to the initial position of the power element; figure 5 - part of the power tool with the distribution system 20 in the extreme working position of the power element; Fig. 6 is a hydraulic circuit corresponding to the extreme position of the power element; in fig. 7 - part of a power tool with a distribution system with an unacceptable pressure increase in the accumulating chamber; Fig. 8 is a hydraulic circuit corresponding to Fig. 7.
    The valve actuator contains mounted on the housing i of the power cylinder 2, the power element of which. consisting of a piston 3 with a stick 4, is rigidly connected to the drive shaft 5 of the controlled device (valve) by means of a transfer system that converts the linear motion of the power element into the rotary motion of the drive shaft 5. The transfer system contains an asterisk in the central part of the rod 4 6, with which at least one connecting rod 7 connected by a lever B with a spindle 9 mounted on a drive shaft 5 is pivotally connected. Moreover, the rod 4 and the elements of the transfer system - the connecting rod 7 and lever 8 are located in planes perpen ikul polar axis of the drive shaft.
    A storage chamber 10 with an elastic membrane 11, separating the cavity of chamber 12 and 13 is mounted on the housing 1 coaxially to the power cylinder. The cavity 12 is filled with gas under pressure, and the cavity 13 is connected to the working chamber 14 of the power cylinder 2 by means of a jet 15 and
    35 40
    45
    50
    limit system, coaxially placed in the power element and containing a calibrated check valve 16 and a compensation valve with a pusher 17 and a return spring 18, which interacts with the body stop 19 in the extreme working position of the power element.
    The stop 19 is made in the form of glass.
    0
    0
    placed in the cavity 13 of the accumulating chamber, and the nozzle 15 is made in the wall of the glass.
    The compensation valve is made in the form of two tubular elements 20 and 21, the tubular element 20 being fixedly mounted in the power element, and the tubular element 21 is placed inside the element 20 and rigidly connected with the pusher 17.
    Radial holes 22 and 23 are made in the walls of the tubular elements, communicating with each other in the extreme position of the power element, and in the wall of the element 20 there is a longitudinal channel 24 connecting the holes 22 with the accumulating chamber.
    The check valve 16 is placed in the tubular element 21, and the output of the check valve communicates with the opening 23 of the channels 25 made in this element 21.
    In the tubular element 21, between the opening 5 of the opening 23 and the check valve, a throttle 26 is installed in the form of a metal-ceramic septum and channels 27 are made to communicate the cavity of the tubular movable element between the check valve and the throttle 26 with the working chamber 14 of the power cylinder.
    Valve actuator works as follows.
    When pressure is applied to the working chamber 5 of the power cylinder 14, the power element moves by turning the drive shaft 5 of the control valve through the transfer system.
    The movement of the power element 0 is accompanied by a slight increase in pressure in the accumulating chamber. At the end of the working stroke of the power element, the pusher 17 of the distribution system abuts the bottom of the beaker, resulting in movement of the tubular element against the action of the spring 18 until the radial holes 22 and 23 are aligned.
    312
    The working medium from the chamber 14 of the power cylinder through the check valve 16 and the combined apertures 22 and 23 passes the B cavity 13 of the accumulating chamber and compresses the gas filling the cavity 12. The movement of the power element stops.
    By reducing the pressure differential in the working chamber 14 of the power cylinder and in the cavity 13 of the accumulating chamber to a certain limit, the check valve closes and the presence of throttles 26 contributes to the complete equalization of pressures in the chamber 14 and the cavity 13.
    The drive is in the cocked position.
    With a decrease in pressure in the working chamber 14 of the power cylinder under the influence of pressure in the accumulating chamber, the force element returns to its initial position.
    In the event of an overpressure in the accumulation chamber due to any reason, the force from which to the pusher is sufficient to overcome the spring force, the tubular element is displaced before the holes 22 and 23 communicate, and the cavity 13 of the accumulating chamber communicates with the working chamber 14 through the throttle 26 with the non-return valve 16 closed until the pressure in the accumulating chamber decreases to the allowable one and the tubular element 35 has a radial response from the accumulator 21 under the action of the spring 18 by a non-rotating chamber, th e
    The reverse valve is located in a movable tubular element in which channels are made, which communicate the outlet 40 of the check valve with a radial outflow. 1. A valve actuator containing a power cylinder, the power element of which is connected to the drive shaft of the controlled device by transferring its initial position.
    权利要求:
    Claims (3)
    [1]
    Invention Formula
    [2]
    version of the movable tubular element.
    [3]
    3. Drive on PP. 1 and 2, in which, in an imperfect system that provides a movable tubular element, the rectilinear movement of the force element into rotational motion of the drive shaft sets up the accumulating chamber with an elastic membrane separating the cavity of the chamber, one of which is filled gas under pressure, and the other is connected to the working chamber of the power cylinder by means of a jet and a distribution system placed in the power element and containing a calibrated check valve and spring-loaded compensation A distributor with a pusher interacting with the body stop in the extreme operating position of the power element, characterized in that, in order to increase the reliability of operation, the distribution system is placed along the axis of the power element, the accumulating meter is mounted on the body coaxially with the silodrome element, covering the power element and dimensioned in the cavity of the accumulating chamber communicated with the working chamber of the power cylinder, and the jet is made in the wall of the glass.
    2. The actuator according to claim 1, that is, that the compensation valve is made in the form of two tubular elements, one of which is fixedly mounted in the power element, and the other is movable; placed inside the first and rigidly connected with the pusher, in the walls of the tubular elements are made communicating with each other in the extreme position of the ruff element radial holes, on the side surface of the fixed tubular element there is a longitudinal channel that tells it
    The reverse valve is placed in a movable tubular element, in which channels are made, which communicate the outlet of the check valve with a radial
    version of the movable tubular element.
    3. Drive on PP. 1 and 2, in that the additional choke in the form of a metal-ceramic sleeve between the radial orifice and the check valve and additional channels are made, which provide the cavity of the fixed tubular element between the check valve and the choke with the working chamber of the pressure cylinder, are not complete.
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    同族专利:
    公开号 | 公开日
    FR2547015A1|1984-12-07|
    ES8503104A1|1985-02-01|
    DE3465136D1|1987-09-03|
    EP0128096A1|1984-12-12|
    KR860001697B1|1986-10-17|
    EP0128096B1|1987-07-29|
    FR2547015B1|1985-07-26|
    DE128096T1|1985-03-14|
    BR8402705A|1985-05-14|
    ES533137A0|1985-02-01|
    US4608913A|1986-09-02|
    CA1267644A|1990-04-10|
    IN161521B|1987-12-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3118349A|1964-01-21|Actuator cylinder |
    BE623629A|1961-10-16|
    US3232181A|1964-07-24|1966-02-01|Leland F Blatt|Differential area gas cylinder|
    US3248879A|1965-04-22|1966-05-03|Acf Ind Inc|Constant pressure source for valves|
    FR1460561A|1965-05-10|1966-03-04|Amri S A|Mechanism driving a shaft in rotation of a quarter turn with transmitted torque, continuously increasing from one extreme position to the other extreme position for which the device is irreversible|
    US3452961A|1966-05-02|1969-07-01|Keystone Valve Corp|Disc valve operator with compound driving linkage|
    DE1800424B1|1968-10-01|1970-02-26|Waldenmaier J E H|Power piston drive for fittings|
    US3824901A|1973-01-18|1974-07-23|Shafer Valve Co|Spring return for piston operator|
    US4349175A|1973-03-14|1982-09-14|Baker Cac, Inc.|Valve actuator having a continuously charged accumulator|
    FR2288896B1|1974-10-21|1978-07-07|Poclain Sa|
    DE2461896A1|1974-12-31|1976-07-08|Bosch Gmbh Robert|CONTROL DEVICE|
    FR2304957B1|1975-03-17|1977-11-25|Amri|
    US4036108A|1975-09-12|1977-07-19|Dobson Park Industries, Ltd.|Pressure fluid operated percussion tools|
    GB1566504A|1976-03-04|1980-04-30|Rockwell International Corp|Valve actuator|
    US4087074A|1976-11-26|1978-05-02|The Parker & Harper Mfg. Co., Inc.|Spring return valve actuator|
    US4216703A|1978-04-17|1980-08-12|Rockwell International Corporation|Valve actuator|
    US4226167A|1978-05-17|1980-10-07|Lew Yon S|Air-spring return air cylinder|
    US4337691A|1979-06-08|1982-07-06|Kitazawa Valve Co., Ltd.|Valve driving apparatus|
    US4466493A|1981-12-17|1984-08-21|Hed Corporation|Reciprocating linear fluid motor|NL8800340A|1988-02-11|1989-09-01|Jft Technology B V|DRIVE DEVICE.|
    US5184465A|1990-09-28|1993-02-09|The Boeing Company|Landing gear drag strut actuator having self-contained pressure charge for emergency use|
    US6062534A|1997-04-25|2000-05-16|Fisher Controls International|Double acting rotary valve actuator|
    AT410357B|2001-01-19|2003-04-25|Hoerbiger Hydraulik|WORKING CYLINDER|
    US20050066655A1|2003-09-26|2005-03-31|Aarestad Robert A.|Cylinder with internal pushrod|
    US7441405B2|2006-03-31|2008-10-28|Caterpillar Inc.|Cylinder with internal pushrod|
    EP2368046A4|2008-12-10|2013-03-20|Numatics Inc|Pressurized air-spring return cylinder and pneumatic intensifier system|
    CN103994264A|2014-05-20|2014-08-20|无锡市捷诺自控设备有限公司|Valve pneumatic actuator|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8309345A|FR2547015B1|1983-06-06|1983-06-06|ACTUATOR WITH PNEUMATIC ENERGY ACCUMULATOR, PARTICULARLY FOR TAP|
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