• 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:

    公开号:SU958751A1
    申请号:SU777770048
    申请日:1977-11-28
    公开日:1982-09-15
    发明作者:Улрих Борнгефт
    申请人:Феб Ифа-Гетриебеверке Бранденбург (Инопредприятие)；
    IPC主号:
    专利说明:

    (54) THREE-POSITIONAL CYLINDERS FOR REMOTE CONTROL OF THE REDUCER
    one
    The invention relates to actuators, for example, three-position cylinders for remotely shifting gearboxes with precise neutral position.
    Three-position cylinders are known in which the installation of the neutral position is ensured by means of springs, compression or by means of two loose parts, the stopping of which is ensured by the use of stop rings on the brush.
    In addition, cylinders without internal support and without stop rings on the engine are known, setting the neutral position in such cylinders is ensured by the difference in the working areas of the main and auxiliary pistons.
    A disadvantage of the known three-position cylinders are. large size and complexity of manufacture.
    The purpose of the invention is to simplify the design and ensure an accurate neutral position.
    This goal is achieved by the fact that on the elongated piston rod an additional piston can be slid, serving
    an anvil for the main piston, and the cylinder body has an anvil for additional pressure, with the additional piston moving in a bore of a larger diameter. FIG. 1 shows a three-position
     cylinder, with extended stem; in fig. 2 - the same, with a solid stock.
    The three-position cylinder consists of a piston rod 1, housed in the housing 2 and provided with a main piston 3.
    10 An additional free piston 4 slides on an elongated or solid piston rod 1 and has a larger diameter than the main piston 3. Holes 5, 6 and 7 are provided in housing 2 for supplying and discharging working fluid. The housing 2 is made stepped with abutment surfaces 8 and 9 and is provided with a cover 10. The free piston 4 is made with an elongated abutment surface 11.
    A three-position cylinder for remote gearbox transmission works in the following manner.
    When the working fluid is supplied to the bore 5, the main piston 3 and the reverse pistons 4 move up to the stop in the cover
    10. At. This main piston 3 is pressed against the stop surface 11 of the free piston 4. When the working fluid is fed into the hole 6, the main piston 3 moves to the left to the stop surface 8, and the free piston 4 slides along the rod 1 all the way into the cover 10. To ensure the neutral position of the main piston 3, the working fluid is supplied to the openings 5 and 7. The free piston 4 moves to the left until it touches the thrust surface 9 of the housing 2, and the main piston 3 moves to the right until it stops at the surface 11 of the free piston 4. The piston 4 is made A larger diameter compared to piston 3 ensures accurate installation in a neutral position.
    权利要求:
    Claims (2)
    [1]
    Claim 1. Three-position cylinder for remote control of the gearbox with precise
    establishing a middle position, especially for motor vehicles, characterized in that in the cylinder body 2 a stationary piston. 3 is so connected with a piston rod that a free piston 4, which fixes the middle position of the fixed piston due to its larger work surface.
    [2]
    2. A cylinder according to claim 1, characterized in that the free piston is so designed that it serves as a stop for the fixed piston, while the cylinder body is equipped with a stop for the free piston.
    It is recognized as an invention according to the results of the examination carried out by the Office for the Invention of the German Democratic Republic.
    类似技术:
    公开号 | 公开日 | 专利标题
    US6763787B2|2004-07-20|Device for controlling the phase angle between a first and a second crankshaft
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    US2550148A|1951-04-24|Multiple position spool valve for machine tools
    US2786539A|1957-03-26|Controllable-pitch propeller system
    KR880002479B1|1988-11-19|Master cylimder
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    SE8202347L|1982-10-17|PNEUMATIC WORKING CYLINDER WITH THE Four Piston Doctor, Preferably for VEXELLADOR TO VEHICLE
    AT104753T|1994-05-15|HYDRAULIC ACTUATING DEVICE DETERMINED FOR THE CONTROL OF THE GEAR SELECTION AND GEAR SHIFTING PROCESSES OF A MECHANICAL GEARBOX FOR MOTOR VEHICLES.
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    SU1015989A1|1983-05-07|Rotary indexing table
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    SU1620364A1|1991-01-15|Hydraulic steering gear
    SU1493499A1|1989-07-15|Operating mechanism for vehicle transmission
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    SU855255A1|1981-08-15|Hydraulic control servo drive of track machine
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    SU663528A1|1979-05-28|Device for positioning the working member of a machine tool
    SU729386A1|1980-04-25|Positional servo drive
    SU920276A1|1982-04-15|Three-position hydraulic cylinder
    DE2933283C2|1982-04-08|Free-flight piston internal combustion engine with hydrodynamic power transmission
    同族专利:
    公开号 | 公开日
    BG29676A1|1981-01-15|
    DD128820B1|1980-07-23|
    RO73200A|1981-08-17|
    CS245051B1|1986-08-14|
    DD128820A1|1977-12-14|
    HU177331B|1981-09-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2014055008A1|2012-10-03|2014-04-10|Scania Cv Ab|Control cylinder for a gearbox, a gearbox with such a control cylinder, and a vehicle with such a gearbox|
    HU187363B|1981-04-16|1985-12-28|Autoipari Kutato Intezet|Pneumatic working cylinder woth four piston particularly for stage selector mechanism of motor vehicle|
    DE3118583A1|1981-05-11|1983-02-10|Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover|THREE-POSITION GEAR CYLINDER|
    JPH0672659B2|1985-08-29|1994-09-14|いすゞ自動車株式会社|Shift control device for automatic transmission for vehicle|
    DE3837777A1|1988-11-08|1990-05-10|Kloeckner Humboldt Deutz Ag|HYDRAULIC GEARBOX|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DD19651276A|DD128820B1|1976-12-21|1976-12-21|TRIANGULAR CYLINDER FOR TRANSMISSION REMOVAL|
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