• 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 power piston apparatus, comprising two or more double acting hydraulic piston drive means in which the cross-sectional areas of the pistons are identical and the cylinder spaces or chambers of which are hydraulically interconnected in crossed fashion above and below the pistons in the case of two cylinders, while being connected in series in the case of more than two cylinders having separately closed oil spaces of identical volumes, with each such oil space being connected to a positive-pressure oil supply through check valves for replenishing the leakage oil, and wherein said piston drive means have associated therewith metering cylinders with a coaxial and/or parallel direction of stroke, i.e. with mechanical connections between the ends of the piston rods.
    公开号:SU747439A3
    申请号:SU772501361
    申请日:1977-07-13
    公开日:1980-07-23
    发明作者:Рудольф Дитс Херберт
    申请人:Трансформ Ферштеркунгсмашинен Аг (Фирма)；
    IPC主号:
    专利说明:

    FIG. 1 shows a construction diagram of a device for synchronizing two hydraulic cylinders; FIG. 2 is a schematic diagram of a device for synchronizing several hydraulic cylinders.
    A device for synchronizing the movement of two moving elements, for example, the output links of two independent hydraulic cylinders (see Fig. 1), contains two hydraulic cylinders 1 and 2 of two-sided action, which have pistons 3 and 4 separating hydraulic cylinders 1 and 2 on the first 5 and 6 and the second 7 and 8 working cavities, the first working cavity 5 of the hydro-11 cylinder 1 is connected by pipe 9 to the working cavity 8 of the hydrogidra 2, and the second working cavity of the hydraulic cylinder 1 by pipe 10 with the first working ps,: b of the hydraulic cylinder 2 2,
    Hydraulic cylinders 1 and 2 ;; 5ab; keny hydraulic cylinders-sensor -I 11 and 12, is
    full 13 and compaction 14 with the management of 15 hydraulic two-sided cylinders: its operation; moreover, the pistons 16 I-; 17 hydraulic cylinders 11 and 12 are rigidly connected to pistons 3 and 4 of hydraulic cylinders 1 and 2, and the first 18 and 19 and third 20 and 21 working cavities are interconnected by channels 22 and 23 of the alkaline connection of cavities 1 of drocylicd 1 to the first 18 and 19 P5 The second 20 and 21 cavities of each hydraulic cylinder sensor 11 and 12 are connected to one of the working cavities - 24 and 25 of the hydraulic cylinder 13 psrgaen 26 with a rod 27 connected to the op: (- control 15 KOMneiicsii cylinder 14; workers
    7.os:
    29 which are connected by channels
    thirty
    31 with working cavities 5, 8 and 6, 7 hydraulic cylinders 1 and 2.
     The control unit 15 is filled in the form of an eolotnic distributor 32, connected to the source of the breeze, and the channels 33 and 34 with two-way actuators; hydraulic gates; the engines 35 and 36, interacting with the compensation; hydraulic cylinder 14 The working cavities 28 and 29 of the compensating hydraulic cylinder 14 are connected to the working cavities 5, 8 and 6, 7 of the main hydraulic cylinders 1 and 2 of the caval
    30 and 31 through u / limplicators 2.7 and 38
    The working cavities 18, 21 and 19, 20 hydraulic sensor-sensors, 11 and 12 communicated with the working cavity 24 and 25 of the executive hydraulic cylinder 13 by channels 39 and 40 through the ulplicators 41 and 42.
    The device can be used to synchronize a motor and several mobile elements.
    In this case (see, fig, 2) hydraulic cylinders 43, 44, - 45, 46 are included
    sequentially in a closed circuit channels-47, 48.49, 50 is similar to the inclusion of cylinders 1 and 2 when synchronizing two elements. Hydraulic cylinders sensors 51, - 52. 53, 54 are connected in the same way as channels 55; 56, 57, 58. Each hydraulic cylinder 43, 44, 45, 46 is equipped with a set of elements 13, 14, 32, 35 and 36.
    The device shown in FIG. 1, works as follows.
    The mismatch in the position of the pistons 3 and 4 of the hydraulic cylinders 1 and 2 causes the same mismatch in the position of the pistons 16 and 17 of the hydraulic cylinders-sensors 11 and 12. The mismatch in the position of the pistons 16 and 17 leads to the appearance of a difference in the total volume of the cavities 2-0 , 19 and 13, 21. The occurrence of this difference causes the displacement of the rod 27 of the actuator of the hydraulic cylinder 26 and the distributor 32. The distributor 32 directs the working fluid under pressure to one of the executive hydraulic engines 35 or 36 and the other executive engine connects in em with a drain. The operation of the engines 35 and 36 triggers the compensation hydro-cylinder 14. The volume of one of the working cavities 28 or 29 decreases, and the other increases, causing a corresponding change in the volumes of the working cavities 5.8 and 6.7 before expressing them. Thus, the alignment of volumes is ensured.
    , 8 and 6,
    and synchronization
    polo
    movements of two moving elements. The multipliers 37, 38, 41, and 42 are designed to provide a constructively reasonable ratio of the strokes of the hydraulic elements of the device.
    // .raysbo for synchronization of the movement of several moving elements, shown in FIG. 2, works similarly to a device for synchronizing two mobile elements with
    The synchronization device according to the invention allows to achieve synchronization accuracy up to ± 0.01 mm.
     the invention
    1. A device for synchronizing the movement of several movable elements, for example, the output links of several independent hydraulic cylinders, containing no. less than two hydrocylins, double-acting cs connected in series in a closed circuit, which have pistons separating the hydraulic cylinder into the first and second working cavities, the first working cavity of the previous hydraulic cylinder being connected by a pipeline to the second working cavity of the subsequent one, characterized in that accuracy of synchronization; each hydraulic cylinder is equipped with a hydraulic cylinder-sensor, actuating and compensating with the organ of controlling two-way hydraulic cylinders, the piston the first is rigidly connected to the piston of the hydraulic cylinder and has first and second working cavities connected to the working cavities of the remaining hydraulic cylinders-sensors similar to connecting the cavities of hydraulic cylinders, with the first and second cavities of each hydraulic cylinder sensor communicating with one of the working cavities of the executive hydraulic cylinder, rod which is connected to the control body by the compensating hydraulic cylinder, the working cavities of which are connected to the working cavities of the hydraulic cylinder. 2. The device according to claim 1, wherein the control is made in the form of a spool valve connected to a pressure source, and two executive hydraulic motors interacting with a compensating hydraulic cylinder. 3. A device according to claims 1 and 2, characterized in that the working cavities of the compensation hydraulic cylinder are connected to the working cavities of the main hydraulic cylinder through multipliers. 4 A device according to claims 1, 2 and 3, characterized in that the working cavities of the hydraulic cylinders-sensors are communicated with the working cavities of the executive hydraulic cylinder through M3 multipliers, Information sources taken into account during the examination 1. Bogdanovich LB Volumetric hydraulic actuators. Technique, Kiev, 1971, p. 137, rice, 87.
    权利要求:
    Claims (4)
    [1]
    Claim
    1. Device for synchronizing the movement of several moving elements, for example, output links of several independent hydraulic cylinders, containing no. less than two double-acting hydraulic cylinders connected in series in a closed circuit, which have pistons separating the hydraulic cylinder into the first and second working cavities, the first working cavity of the previous hydraulic cylinder being connected by a pipe to the second working cavity of the subsequent one, characterized in that, in order to increase the accuracy of synchronization , each hydro-§ cylinder is equipped with a hydraulic cylinder-sensor, executive and compensation with a body. control of double-acting hydraulic cylinders, and the piston the first is rigidly connected <( θ to the piston of the hydraulic cylinder and has first and second working cavities connected to the working cavities of the remaining hydraulic cylinders-sensors similarly to the connection of the cavities' hydraulic cylinders, the first and second cavities of each hydraulic cylinder-sensor connected to one of the working cavities of the executive a hydraulic cylinder, the rod of which is connected to the control body of the compensating hydraulic cylinder, 20 working cavities of which are connected to the working cavities of the hydraulic cylinder.
    [2]
    2. The device according to claim 1, wherein the control body is made in the form of a spool valve connected to a pressure source and two actuating hydraulic motors interacting with a compensation hydraulic cylinder.
    [3]
    3. The device according to paragraphs. 1 and 2, characterized in that the working cavity of the compensation hydraulic cylinder is connected to the working cavities of the main hydraulic cylinder through the multipliers.
    [4]
    4. The device according to claims 1, 2 and 3, characterized in that the working cavities of the hydraulic cylinders-sensors are connected with the working cavities of the executive hydraulic cylinder through the multipliers.
    类似技术:
    公开号 | 公开日 | 专利标题
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    GB1418968A|1975-12-24|Dual cylinder fluid operated actuator
    SU885640A1|1981-11-30|Chain rotation mechanism hydraulic drive
    US2980063A|1961-04-18|Cylinder adder
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    SU892037A1|1981-12-23|Hydraulic system
    SU110812A1|1957-11-30|Hydraulic | drive
    US3744373A|1973-07-10|Hydraulic driving system
    FR2381170A1|1978-09-15|Reciprocating pneumatic or hydraulic motor with coaxial cylinders - has double-acting pistons linked by hollow rods containing ports for transfer of fluid and synchronised magnetic slide valves
    SU1511138A1|1989-09-30|Hydraulic gear
    SU696182A1|1979-11-05|Hydraulic remote transmission line
    SU434197A1|1974-06-30|DEVICE OF SYNCHRONIZATION OF MOTION OF HYDROCYLINDERS
    GB1432226A|1976-04-14|Fluid operated piston-cylinder actuator
    SU852720A1|1981-08-07|Loading device for testing ship steering engines
    同族专利:
    公开号 | 公开日
    DD130497A5|1978-04-05|
    NL7707708A|1978-01-17|
    FR2358574A1|1978-02-10|
    JPS5331073A|1978-03-23|
    BR7704601A|1978-03-28|
    US4192222A|1980-03-11|
    CA1058058A|1979-07-10|
    ZA774206B|1978-05-30|
    DE2631479A1|1978-01-19|
    GB1582570A|1981-01-14|
    SE7708017L|1978-01-14|
    IT1084392B|1985-05-25|
    LU77753A1|1977-10-17|
    PL199601A1|1978-04-24|
    ES460710A1|1978-08-16|
    DK309177A|1978-01-14|
    BE856777A|1977-10-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB758480A|1953-02-16|1956-10-03|United Eng Foundry Co|Improvements in or relating to hydraulic presses and control means therefor|
    FR1095239A|1953-03-14|1955-05-31|Improvements to hydraulically controlled metalworking machines|
    AT248250B|1961-12-16|1966-07-25|Garbe Lahmeyer & Co Ag|Hydraulic drive element|
    US3143924A|1962-07-17|1964-08-11|Pacific Ind Mfg Co|Control means for series connected cylinder drive assemblies|
    FR1601533A|1968-12-27|1970-08-24|
    US3636817A|1969-08-14|1972-01-25|Star Textiles & Research Inc|Hydraulic control system for crosser machine|
    US3769881A|1970-06-17|1973-11-06|K Aoki|Hydraulic device|
    FR2143046B1|1971-06-21|1973-07-13|Mori Masunori|
    US3805530A|1971-07-29|1974-04-23|Pacific Press & Shear Corp|Compensated series hydraulic system|CH627694A5|1978-03-23|1982-01-29|Schweizerische Lokomotiv|DEVICE FOR HYDRAULIC CONTEMPORARY MOTION TRANSMISSION BETWEEN TWO MOVABLE PARTS.|
    US4759260A|1978-05-17|1988-07-26|Lew Yon S|Super reliable air-spring return air cylinder|
    US4288987A|1978-11-11|1981-09-15|Eugen Rapp|Pneumo-hydraulic booster with rapid-traverse feature|
    DE3222051C2|1982-06-11|1984-10-11|Bochumer Eisenhütte Heintzmann GmbH & Co KG, 4630 Bochum|Hydraulic steering|
    FR2576059A2|1982-12-22|1986-07-18|Gewerk Eisenhuette Westfalia|Device for controlling the jacks of sliding cappings of units for hydraulic self-advancing supports|
    DE3318641A1|1982-12-22|1984-06-28|Gewerkschaft Eisenhütte Westfalia, 4670 Lünen|DEVICE FOR CONTROLLING THE SLIDING CAP CYLINDER HYDRAULIC SCREW REMOVAL UNITS|
    US4477232A|1983-01-10|1984-10-16|Mayer James R|Hydraulically actuated reciprocating piston pump|
    US4647267A|1985-05-06|1987-03-03|Dempster Systems Inc.|Fork and arm mechanism for refuse container|
    IT1187790B|1985-06-24|1987-12-23|Corghi Elettromecc Spa|HYDRAULIC CONTROL SYSTEM FOR LIFT BRIDGES OF VEHICLES IN GENERAL|
    JPS61165003A|1986-01-10|1986-07-25|Caterpillar Mitsubishi Ltd|Reciprocating type fluid pressure actuator|
    US5072649A|1991-01-07|1991-12-17|Laghi Aldo A|Double actuator with bypass lines for synchronized movement|
    US5322025A|1992-05-29|1994-06-21|Steelcase Inc.|Adjustable dual worksurface support|
    US5287700A|1992-10-14|1994-02-22|Mcdonnell Douglas Helicopter Company|Flexible bellows actuation system|
    US6408736B1|1999-07-13|2002-06-25|Welker Bearing Company|Synchronizing cylinder assembly with equal displacement hydraulic cylinder|
    US20040118083A1|2002-12-19|2004-06-24|Delaware Capital Formation, Inc.|Clipping mechanism piston actuator|
    US7269949B1|2004-09-24|2007-09-18|Davor Petricio Yaksic|Synchronizing hydraulic cylinders|
    CN102230484B|2011-06-21|2014-06-25|同济大学|Integrated continuous gas-driving hydraulic force booster|
    US9816539B1|2013-03-19|2017-11-14|Davor Petricio Yaksic|Motion control|
    CN103613047B|2013-11-27|2016-02-24|中国航空工业集团公司西安飞机设计研究所|A kind of four leg synchronous hydraulic hoist structures|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19762631479|DE2631479A1|1976-07-13|1976-07-13|WORKING PISTON DEVICE|
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