• 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:
    Passage bridging cavities formed in a steering gear housing communicate with annular grooves in a cylindrical valve element through recesses in the cavities at limited, and angularly spaced valve edge locations to control distribution of pressurized fluid in a hydrostatic power steering system in response to axial and rotational movement of the valve element.
    公开号:SU1022653A3
    申请号:SU802872799
    申请日:1980-01-23
    公开日:1983-06-07
    发明作者:Тишер Вернер
    申请人:Цанрадфабрик Фридрихсхафен Аг (Фирма)；
    IPC主号:
    专利说明:

    The invention is from transport to machine-building transport, namely, to hydraulic steering mechanisms of trance containing distribution gold) nyx, installed with the possibility of rotation and axial movement in the crankcase of the steering mechanism. Known hydr; an influential steering mechanism of the transport means, containing a distribution valve located with the possibility of rotation and axial movement in the crankcase of the steering mechanism a, and in the crankcase for distributing the flow of working fluid there are ring seals and flanges located between them, and on the distribution valve - the protrusions corresponding to them with the lu edges of the l1. A disadvantage of the known device is the increased leakage of working fluid. Purpose, invented | and - reduction of working fluid losses. This goal is achieved by the fact that in the device on the lateral surfaces of the partitions centrally symmetrically, the spacing of the spool axis is equal to the corresponding protrusions on the spacing N spool. . Moreover, the recesses are made by a step. The steering distributor is formed by the steering gear housing and the spool 2 rotatably and axially moving therein. The spool 2 moves (respectively, its rotation) from the middle position in the axial direction to the left or right while the steering shaft 3 rotates. it is simultaneously driven by the steering shaft. This axial movement of the spool 2 is carried out by means of a pin 10 of the steering shaft 3 in a sloping groove in spool 2. Due to the elasticity of the torsion bar 11, relative rotational movement takes place between the steering shaft 3 and the drive shaft 5. The torsion bar 11 is connected to the drive shaft 5 on one side and, on the other hand, with the steering shaft 3. The cardan shaft 5 is rigidly connected by gearing with the spool 2. When the spool 2 is moved, the oil flows from the hydraulic pump 12. to the manual pump 13 and from it to the corresponding working pressure chamber ilindra 14. The working cylinder 14 is supported, generally, to the axle with steerable wheels, and transmits the force to the steering linkage lever or the lever pivot pin. The hydraulic pump 12 draws oil from the tank 15. To limit the pressure, a pressure limiting valve 16 is used, and the valves 17 and 18 are additional suction valves. When the steering wheel is installed directly, the spool 2 is in the neutral position. Due to this, the volume flow created by the hydraulic pump 12 can be diverted from the pressure channel 19 to the outlet channels 20 and 21 located to the left and right of it and from there it is directed to the tank 15, and the oil in the other channels and in the manual pump 13 is not at that time moves. The distribution channels 22 and 23 for the slave cylinder 14 do not communicate when closed, with the channels 24 and 25 of the hand pump. When the steering wheel 6 rotates, it is driven by the steering shaft 3 and the rotating torsion bar 11 by the drive shaft 5. It engages with the rotor 4 of the manual pump 13 and draws the rotor. The volume flow created by this, for example, rotates the steering wheel 6 to the left through the distribution disk 9 into the channel 24 and through the distribution channel 22 into the working cylinder 14. The oil pressure in the working cylinder 14 required for control resists the rotation of the rotor 4 and therefore the steering angle shaft 3 becomes larger than the angle of rotation of the rotor 4 and the spool 2. spool 2 rotates relative to the steering shaft 3 only with simultaneous axial movement. which can be caused by the pin U fixed to the steering shaft J and rememeuiyuys in the oblique groove of the spool 2. When the spool inside the crankcase moves axially to the right (the steering wheel turns in a counterclockwise direction), channel 26 opens, causing the oil to flow from the hydraulic pump 12 to the hand pump 13. From the discharge side of the manual pump, oil flows through the channels 24 and 22 "and the left side of the working cylinder 14. The right side by opening the distribution edge between the channels 2 and 19 is communicated with reverse drain. When the steering wheel is rotated in the clockwise direction, the reverse occurs. 1 3 The bulkheads 27 in the transmission case, which are respectively located between the high and low pressure sides and 5 of the flow distribution using the distributor edges, "run along the outer perimeter on the corresponding troughs of the recess 28 in the form of ledges through which the oil flow passes. in fig. 2 shows distribution pits 28 along the perimeter, and FIG. 3 alternatively, two notches 28, which are performed by plunge milling, eccentric turning, or other means. “-” “As seen from FIG. 4 and 5, the full width of the septum is used for seals, regardless of the meter on which they are located. FIG. Also shown is the offset arrangement of the recesses 28 and partitions 27 with distribution edges provided on both sides.
    权利要求:
    Claims (4)
    [1]
    (37) 1. A HYDRAULIC STEERING VEHICLE OF THE VEHICLE, containing a distributor valve, located with the possibility of rotation and axial movement in the crankcase of the steering mechanism, moreover, annular partitions and annular grooves located between them are made in the crankcase to distribute the flow of working fluid, and on the distributor valve - corresponding protrusions with guide edges, characterized in that, in order to reduce losses of the working liquid bone 1, the side surfaces of the partitions central symmetry Normally the recesses formed on the perimeter, the distance between them along the axis of the spool equal to the corresponding distances between the protrusions on the spool.
    [2]
    2. The mechanism of pop. 1, revealing that the recesses are made stepwise.
    [3]
    3. The mechanism according to paragraphs. 1 and 2, distinguished by the fact that from two to four recesses are made on each partition from one side.
    [4]
    4. The mechanism according to paragraphs. 1-3, characterized in that the recesses located on one side of the partition are offset from the recesses located on the other side of the partition.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1022653A3|1983-06-07|Vehicle steering hydraulic mechanism
    US3895888A|1975-07-22|Hydrostatic control unit
    US4658583A|1987-04-21|Double staged, internal rotary pump with flow control
    US7708531B2|2010-05-04|Axial piston device
    US4646520A|1987-03-03|Torque fluctuation absorber between a flywheel and a stepless hydraulic transmission
    EP2250068B1|2013-07-10|Fluid controller with multiple fluid meters
    KR20000022850A|2000-04-25|Twin-visco-lok coupling with improved braking stability and less torsion
    US3880554A|1975-04-29|Operating mechanism for steering systems or the like
    SU993835A3|1983-01-30|Directional valve for hydraulic system
    DK142591B|1980-11-24|Hydraulic control valve.
    SU1041044A3|1983-09-07|Hydrostatic regulator
    FI64840B|1983-09-30|HYDRAULISK MOTOR
    US3887308A|1975-06-03|Valve porting arrangement for a gerotor
    US5690143A|1997-11-25|Valve for power steering gear
    SU1022668A3|1983-06-07|Hydraulic rotary servo drive
    US3584985A|1971-06-15|Hydrostatic control equipment particularly for steering systems
    US4671747A|1987-06-09|Control device for hydrostatic power assisted steering
    USRE31067E|1982-10-26|Hydrostatic control unit
    US4204817A|1980-05-27|Torque-amplifying hydraulic servo-mechanism, particularly for power steering systems in motor vehicles
    US3614265A|1971-10-19|Radial piston pump
    US2735529A|1956-02-21|austin
    SU940639A3|1982-06-30|Hydrostatic steering system for vehicle
    RU2018725C1|1994-08-30|Turnable discrete hydraulic distributor
    SU1090269A3|1984-04-30|Rotary hydraulic pilot directional valve
    US3970165A|1976-07-20|Power assisted steering system
    同族专利:
    公开号 | 公开日
    PL221720A1|1980-10-20|
    FR2447844A1|1980-08-29|
    BR8000629A|1980-10-14|
    GB2043002B|1982-12-08|
    ES488123A1|1980-09-16|
    DE2904111C2|1983-03-31|
    YU1280A|1983-01-21|
    AR219204A1|1980-07-31|
    FR2447844B1|1983-12-09|
    JPS6327234B2|1988-06-02|
    US4371002A|1983-02-01|
    DE2904111A1|1980-08-14|
    GB2043002A|1980-10-01|
    JPS55106870A|1980-08-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3255778A|1963-08-19|1966-06-14|Orel L Rosebrook|Servo valve mechanism|
    FR1463559A|1965-01-27|1966-12-23|Cam Gears Ltd|Spool dispenser|
    GB1085374A|1965-09-10|1967-09-27|Hydrosteer Ltd|Improvements in or relating to valves|
    BE759150A|1969-11-19|1971-04-30|Fujitsu Ltd|ROTARY PILOT VALVE|
    US3600893A|1970-02-16|1971-08-24|Trw Inc|Hydraulic device having pressure dam valve means|
    DE2334365C3|1973-07-06|1980-03-20|Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen|Control valve|
    US3971216A|1974-06-19|1976-07-27|The Scott & Fetzer Company|Load responsive system with synthetic signal|
    US4020748A|1974-09-03|1977-05-03|Zahnradfabrik Friedrichshafen Ag|Valve structure for hydraulic control system|
    US4089169A|1976-08-19|1978-05-16|The Scott & Fetzer Company|Pressure actuated signal fluid control for load responsive systems|
    US4050247A|1976-10-07|1977-09-27|Eaton Corporation|Control valve for variable displacement pump or motor|
    DE2712920C3|1977-03-24|1980-08-07|Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen|Hydraulic pressure medium control device, in particular for hydrostatic steering devices of motor vehicles|DE3031230C2|1980-08-19|1986-03-13|Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen|Hydrostatic power steering device|
    JPS6133368A|1984-07-26|1986-02-17|Atsugi Motor Parts Co Ltd|Power steering|
    JPS61102379A|1984-10-22|1986-05-21|Atsugi Motor Parts Co Ltd|Power steering|
    JPH048668B2|1985-03-06|1992-02-17|
    DE3515563C1|1985-04-30|1986-11-06|Parker Hannifin "NMF" GmbH, 5000 Köln|Hydraulic control valve in piston-slide design|
    JPS63166870U|1987-04-20|1988-10-31|
    AU2002343525A1|2001-10-17|2003-04-28|Lonmore, Lc|Variable flow control devices, related applications, and related methods|
    US7108096B1|2002-02-25|2006-09-19|Lonmore, Lc|Vehicle control system with slow-in-turn capabilities and related method|
    US7036625B2|2002-11-08|2006-05-02|Nmhg Oregon, Inc.|Integrated hydraulic control system|
    FR2933937B1|2008-07-17|2011-02-25|Bosch Gmbh Robert|HYDRAULIC BRAKE ASSISTING DEVICE|
    US9512838B2|2013-03-15|2016-12-06|Eaton Corporation|Torque-generating steering device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19792904111|DE2904111C2|1979-02-03|1979-02-03|Hydrostatic steering device|
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