• 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 steering control valve and worm nut centering device for a power steering booster mechanism control valve is provided comprising a flexure rod carried either by the double-acting piston member or the worm nut member and extending between those members or into the valve spool. The overall construction is conventional and well known, the particular feature of the invention being a flexure rod which is adjustable translationally or rotatively, in various modifications, to center the valve spool of the control valve and to center the worm nut. The flexure rod can be predetermined as to length, taper, alloy, and other design factors so as to flex to give a desired increase in road resistance feel substantially over and above that afforded by the usual size of reaction chambers and centering spring conventionally associated with the valve spool. Thus, a flexure characteristic curve of extent of flexure versus degree of steering provides a sharp increase in road resistance simulation as the steering spindle is turned.
    公开号:SU845762A3
    申请号:SU772513303
    申请日:1977-08-15
    公开日:1981-07-07
    发明作者:Яблонски Эрих；Эльзер Дитер
    申请人:Цанрадфабрик Фридрихсхафен,Аг(Фирма)；
    IPC主号:
    专利说明:

    The invention relates to vehicle steering systems, and more specifically to vehicle steering assist amplifiers. A vehicle power steering control device is known, which includes a housing with a working piston placed inside it, the rod of which is connected kinematically with a bipod by means of a gear, a steering wheel nut mounted in the working piston and connected with a steering gear with a steering shaft. with respect to the latter, the steering distributor with a return-translation spool mounted in a plane perpendicular to the longitudinal axis of the steering shaft and kinematically bound with the carrier mounted on said steering nut, and a return mechanism C1. . The disadvantage of this power steering is that it does not provide for the required law of force variation on the steering wheel, as well as the complexity of installation and adjustment work. The aim of the invention is to improve the ease of control by the liver of the required law of change of force on the steering wheel, as well as: regulating the installation and work. This goal is achieved by ensuring that the return mechanism is made in the form of a spring rod, one end of which is in an exclusive sleeve, in which the piston is installed without a gap, and the other on the spool, and the vodka and spring rod are installed coaxially. One end of the spring rod is made in the form of a ball trap for interaction with the distributor gold. FIG. 1 shows a longitudinal section of the power steering assembly in FIG. 2, a section A-A of FIG. 1. In the steering gear housing 1, radial bearings and shaft 3 are supported, on which 4 is supported, the lower end of which is made in the form of a screw 5, the working piston 6 divides the zero gear housing 1 into two chambers 7 and 8, with This positioned (The working chamber 8 gear segment
    ) is in engagement with the teeth of the working piston 6. The gear segment 9 through the shaft of the bipod 10 is kinematically connected with controlled wheels. In the working piston b between two thrust bearings 11 and 12, a steering nut 13 with a guide 14 is placed with limited rotation. This driver 14 is equipped with a trunnion 15, which passes through the stop valve 16 in the working piston 6 through the spool of the steering distributor 17. oil under pressure in the corresponding working chamber 7 or 8 and is located in the working piston 6 perpendicularly and off its axis.
    Rotational movement on the steering shaft .4 cosjiaeT through the worm to 5, balls 18 and the nut of the steering gear 13 hydraulic movement of the working piston 6. Tube return balls 19 allows in a known manner the continuous circulation of balls. Thrust bearings 11 and 1 by means of a threaded ring 20 with holes 21 are gaplessly fixed in the working piston 6.
    The steering distributor 17 consists of a bushing 22 and a spool 23 installed therein, which can be moved from a neutral position to a certain course limited by the hole 16 of the driver 14.
    Centering the middle position of the spool.A is performed by means of a flexible spring rod 24, on one side pressed into the sleeve 25 equipped with an eccentric hole, and threaded with a threaded ring 26 axially in the working piston 6. On the other hand, the flexible spring rod 24 has a spherical head 27, is placed without the gap in the through hole 28 of the valve 23 when turning the sleeves 25 for the hexagon 29, located on the flexible spring rod 24, you can install the valve 23 in the neutral position.
    When moving the spool 23, 1 & 1 bending device is distributed
    the spring rod 24 is deflected, while a force acts on the spool which ensures that the said spool returns to the neutral position. The spring rod works like a torsion bar and has a characteristic that provides the required law of force variation on the steering wheel.
    权利要求:
    Claims (1)
    [1]
    1. A vehicle power steering system, comprising a housing with a working piston disposed inside it, the stock of which is connected kinematically with a bipod by a gear transmission, and a steering nut installed in a working piston and connected through a helical gear with a steering shaft with can be rotated relative to the latter, the steering distributor with a reciprocating slide mounted in a plane perpendicular to the longitudinal axis of the steering shaft, and kinematically a driver mounted on said steering nut, and a return mechanism, characterized in that, in order to increase the control comfort by providing the required law of force variation on the steering wheel, as well as simplify installation and adjustment work, the return mechanism is in the form of a spring a rod fixed at one end in an eccentric sleeve installed in the working piston without a gap, and the other on the said spool, the leash and the spring rod being coaxially mounted.
    2 o Amplifier according to claim 1, characterized in that one end of the spring rod is made in the form of a ball head for interacting with the valve of the distributor.
    Sources of information taken into account in the examination
    1. Patent of Germany No. 2327535, cl. In 62 D 5/06, 1973.
    L
    -frfig 2
    类似技术:
    公开号 | 公开日 | 专利标题
    DE4236771C2|1994-11-24|Steering device with variable steering angle ratio for a steering lever control mechanism
    SU845762A3|1981-07-07|Steering gear amplifier of transporting device
    US3930554A|1976-01-06|Power-assisted steering gear
    EP0209117A2|1987-01-21|Vehicle steering system
    US3218937A|1965-11-23|Variable ratio power steering gear
    US2769348A|1956-11-06|Manual and power actuated steering mechanism for motor vehicles
    US4874183A|1989-10-17|Four-wheel steering apparatus of a vehicle
    GB2184989A|1987-07-08|Servo-control, in particular power steering for motor vehicles
    US2957361A|1960-10-25|Power steering attachment
    US3264946A|1966-08-09|Servo steering of vehicles
    US5086687A|1992-02-11|Rotary slide valve for hydraulic auxiliary power steering
    GB2290764A|1996-01-10|Servo-assisted rack-and-pinion steering system
    US3252380A|1966-05-24|Auxiliary power steering arrangement, especially for motor vehicles
    US3636794A|1972-01-25|Power steering system
    US2938399A|1960-05-31|Hydraulically operated vehicle steering mechanisms
    US2906247A|1959-09-29|Power steering mechanism for motor vehicles
    US2857976A|1958-10-28|Steering servo mechanism, particularly for motor vehicles
    GB1587911A|1981-04-15|Pressure medium control device for power assisted steering systems particularly but not exclusively for motor vehicles
    US2489534A|1949-11-29|Steering gear mechanism
    US4766801A|1988-08-30|Hydraulically operated power steering system
    KR0130511B1|1998-04-10|Steering apparatus
    US3945456A|1976-03-23|Servo steering systems for motor vehicles
    SU1146228A1|1985-03-23|Vehicle steering hydraulic booster
    US6253657B1|2001-07-03|Steering apparatus
    JPH06305431A|1994-11-01|Steering system in industrial vehicle
    同族专利:
    公开号 | 公开日
    SE7709625L|1978-03-01|
    YU39399B|1984-12-31|
    CA1061723A|1979-09-04|
    IT1079415B|1985-05-13|
    YU177677A|1983-01-21|
    AR212657A1|1978-08-31|
    DE2638981A1|1978-03-02|
    GB1539339A|1979-01-31|
    US4202249A|1980-05-13|
    FR2362746A1|1978-03-24|
    AT351944B|1979-08-27|
    BE858168A|1977-12-16|
    JPS612550B2|1986-01-25|
    DE2638981C3|1980-01-17|
    SE432914B|1984-04-30|
    ES461721A1|1978-05-01|
    ATA620777A|1979-01-15|
    HU174658B|1980-02-28|
    JPS5349725A|1978-05-06|
    BR7705652A|1978-05-23|
    CH623003A5|1981-05-15|
    PL200482A1|1978-04-10|
    DE2638981B2|1979-05-17|
    NL7708470A|1978-03-02|
    FR2362746B1|1982-10-22|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB1281185A|1968-12-21|1972-07-12|Zahnradfabrik Friedrichshafen|Improvements in and relating to power assisted steering, particularly for motor vehicles|
    GB1329562A|1969-09-25|1973-09-12|Sperry Rand Australia Ltd|Fluid operated actuator for movable members|
    US3814131A|1972-11-07|1974-06-04|Tokyo Precision Instr Co Ltd|Servo valve|
    DE2327535C3|1973-05-30|1980-06-26|Integral Hydraulik & Co, 4000 Duesseldorf|Power steering for motor vehicles|HU178985B|1979-07-31|1982-07-28|Autoipari Kutato Intezet|Hydraulic power assisted steering unit first for motor vehicles|
    US4384631A|1979-12-28|1983-05-24|Aisin Seiki Kabushiki Kaisha|Power steering mechanism|
    DE3035407C2|1980-09-19|1982-09-23|Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen|Power steering for motor vehicles|
    GB2122151B|1982-06-18|1986-06-25|Cam Gears Ltd|Power assisted steering gear|
    US4666014A|1986-05-08|1987-05-19|Trw Inc.|Floating ball-nut for an electric assist steering system|
    EP0615501B1|1992-10-15|1996-12-04|Alliedsignal Automotive Espana, S.A.|Power steering with automatic play compensation|
    CN101258066A|2005-08-31|2008-09-03|Thk株式会社|Steering device and movement converting device used therefor|
    CN102644631B|2012-03-27|2014-11-05|西安交通大学|High-pressure and high-flow alternating-current servo direct-driven eccentric shaft type flow valve|
    US9145164B2|2013-04-12|2015-09-29|Rane TRW Steering Systems Limited|Integral hydraulic power steering gear|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2638981A|DE2638981C3|1976-08-28|1976-08-28|Power steering, in particular for motor vehicles|
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