• 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:
    1475206 Rotary positive-displacement fluidmachines TRW Inc 10 Feb 1975 [19 Feb 1974] 5624/75 Heading F1F [Also in Division B7] A controller for use in controlling the flow of hydraulic fluid in the power steering system of a vehicle, is of the kind including a fluid-metering mechanism 12 comprising intermeshing inner and outer gears 54, 50, the controller 10 being characterized in that its torsional coupling assembly 18 coupling the input shaft 16 and the wobble shaft 74 takes the form of one or more resilient blades. In the illustrated embodiment, the torsional coupling assembly 18 comprises a pair of blades 66, 68 which are bowed, as shown in Fig. 4, and which have ends located in a slot 104 of the input shaft 16 and in a slot 122 of the wobble shaft 74. The ends of the blades 66, 68 are formed with protuberances, e.g. the protuberances 156, 164 of Fig. 4, which engage the side walls of the slots 104, 122.
    公开号:SU791264A3
    申请号:SU752110470
    申请日:1975-02-19
    公开日:1980-12-23
    发明作者:Локхарт Миллер Лоуренс
    申请人:Трв,Инк (Фирма)；
    IPC主号:
    专利说明:

    I
    The invention relates to hydraulics, relates to devices for controlling the flow of fluid and can be used in transport, in machine-tool construction, mechanical engineering and other 5 branches.
    A device for controlling fluid flow is known, comprising a housing with two output channels connected via a distributor Yu to an end distributor of an internal gearing metering pump, the rotor of which is connected through a gear coupling equipped with a shaft, and a torsion mechanism with an input j shaft Ij.
    The drawback of the device is the relative complexity of the design and the lack of accuracy due to the presence of backlash in the joints of the torsion mechanism with the shaft of the structural complexity of this joint and the small heat transfer surface of the torsion mechanism, which causes its thermal deformation.25
    The purpose of the invention is to improve the accuracy and simplify the design of the device.
    For this, the torsion mechanism is made in the form of two
    Together, flexible plates of equal length, fitted at these ends with tabs, and at the end of the input shaft and the coupling shaft there are cuts and axial drilling in which the ends of plates and tabs are installed, respectively.
    In addition, the plates are made curved and face each other with concave surfaces.
    N. FIG. 1 schematically shows the proposed device; in fig. 2 - torsion mechanism; in fig. 3 - flexible plates in the plan; in fig. 4 is the same, side view, in FIG. 5 is a section A-A in FIG. 3 (at the end of the torsion mechanism that fits into the slot of the clutch shaft) T in FIG. 6 is a section BB in FIG. 3 (at the end of the torsion mechanism entering the slot of the input shaft) -, in FIG. 7 is a section on BB in FIG. 3 (end sections of the torsion mechanism in the off position) is increased; in fig. 8 - the device in the zone adjacent to the junction of the torsion mechanism with the coupling shaft, cross section (section G - D in Fig. 1}.
    权利要求:
    Claims (2)
    [1]
    In the device case 1, two output channels 2 and 3 are made, connected through a distributor formed by sleeve 4 with grooves and case 1, to the frontal distributor 5 of the gear metering pump b for internal engagement. The latter has a stator 7 with an internal gear rim and a rotor 8 with an external gear rim, the number of teeth of which is one less than that of the stator 7. The rotor 8 is connected through the gear coupling 9 provided with a shaft 10, and. torsion bar: anism 11 with inlet shaft 12. In housing 1, an inlet channel 13 is connected to a pressure source of the working fluid (not shown) and a drain channel 14 connected to a tank (not shown). In a bore of a sleeve 4 the splines 15 are made, which interact with the splines 16 at the end of the shaft 10 of the coupling 9. The input shaft 12 interacts through the ball 17 with the spiral groove 18 on the hub 4. The torsion mechanism 11 is made in the form of two flexible plates 19 and 20 folded at the ends together lengths supplied at these ends with tabs 21 and 22. At the end of the input shaft 12 and shaft 10 of clutch 9 is made, slots 23 and 24. At the end of the input shaft 12, axial drilling 25 is also performed. Slots 23 and 24 have ends of plates 19 and 20, and tabs 21 and 22 are placed in drilling 25. Plates 19 and 20 made curvilinear and facing each other with concave surfaces. At the ends of the plates 19 and 20, protrusions 26-29 / a are made at the ends entering the protrusion 24 of the shaft 10 / additionally made 30-33 / entering each other to prevent displacement of the plates 19 and 20. Output channels 2 and 3 are connected to different cavities of the actuator / for example, a linear hydraulic motor of the booster booster of the vehicle. When the input shaft 12 rotates, the ball 17 through the spiral groove 18 acts on the sleeve 4 / displacing it axially in one direction or another, depending on the direction of rotation of the input shaft 12. At the same time, the plates 19 and 20 of the torsion mechanism 11 are twisted due to resistance side of the rotor 8 of the metering pump 6. The twisting of the plates 19 and 20 continues until / until, as a result of axial displacement of the sleeve 4, it notifies the metering pump 6 with one of the outlets 2 or 3 by bores. Set the working fluid dose falls from the pressure source through the metering pump b into one of the cavities of the hydraulic motor. At the same time, the resistance of the rotor 8 drops and it begins to rotate in the direction of rotation of the input shaft 12. When the latter stops due to the energy stored by plates 19 and 20 by elastic deformation, the rotor 8 continues to rotate in the same direction to its original position (at which the plates 19 and 20 are in a non-contracted position / and the sleeve 4 due to the rotation relative to the input shaft 12 is returned by the ball 17 to its initial axial position. The rotation of the sleeve 4 is provided by the interaction of its splines 15 with the splines 16 of the shaft 10 / rotating together with the rotor 8 and the torsion mechanism 11. Slip of the splines 15 along the splines 16 allows axial movement of the sleeve 4. Centering the plates 19 and 20 and preventing their adhesion with the splines 15 is achieved / that one end of the torsion mechanism 11 is located in the slot 24 of the shaft 10 / the axis of which passes through the protrusions of the splines 15 (Fig. 8), and the tongues 21 and 22 of the other end are in the centering axial drilling 25. The projections 26-29 ensure that the ends of the plate Stins 19 and 20 to the walls of the slots 23 and 24 and at the same time prevent the interaction of the outer sides of the plates 19 and 20 with the edges of the slots 23 and 24 / which would entail the occurrence of stress concentrations at the points of contact. Plates 19 and 20 have a large heat transfer area and are intensively cooled by a stream of working fluid passing through the bore of the sleeve 4. The curvature of the plates 19 and 20 ensures their springiness during shrinking and, thereby, tightly fitting the protrusions 26-29 without gaps to the walls of the slots 23 and 24. Due to the tightness of the protrusions 26-29 to the walls of the slots 23 and 24, the backlash at the beginning of the twisting of the torsion mechanism 11 / is eliminated, and the large relative heat transfer surface prevents the plates 19 and 20 from overheating and their thermal deformation / then together with the elimination of the backlash it increases the accuracy of the device. The simplicity of the forms of plates 19 and 20 and their manufacturability determine the simplification of the device design. Claim 1. Device for controlling fluid flow, comprising a housing with two output channels / connected through a distributor to an end distributor of a gear internal metering pump / rotor of which is connected through a gear coupling / provided with a shaft / and a torsion mechanism with an input shaft / characterized in that / in order to increase the accuracy of the work and simplify the design / the torsion mechanism is made in the form of two flexible ends folded together
    plates of equal length, provided at these ends with tabs, and ria the end of the input shaft and coupling shaft are made with slots and axial drilling, in which, respectively, the ends of the plates and tabs are installed.
    [2]
    2. The device according to claim 1, of which is based on the fact that the plates
    made curvilinear and facing each other with concave surfaces.
    Sources of information taken into account in the examination
    1. US Patent No. 34i62543, cl. 60-52, published. 1969.
    sy
    H
    /9
    21
    T (
    at
    类似技术:
    公开号 | 公开日 | 专利标题
    US3233524A|1966-02-08|Fluid operated motor
    US3289602A|1966-12-06|Fluid pressure device
    JP2820290B2|1998-11-05|Hydraulic rotary piston type machine
    SU791264A3|1980-12-23|Device for flow control of flowing medium
    US3270681A|1966-09-06|Rotary fluid pressure device
    US3512905A|1970-05-19|Rotary device
    SU1041044A3|1983-09-07|Hydrostatic regulator
    US3547565A|1970-12-15|Rotary device
    US3288078A|1966-11-29|Hydraulic device
    US2985110A|1961-05-23|Pump construction
    US3887308A|1975-06-03|Valve porting arrangement for a gerotor
    DK164826B|1992-08-24|HYDRAULIC ROTATION MACHINE WITH FRILOEB
    US3473437A|1969-10-21|Rotary slide valve for fluid motors and pumps
    US3429269A|1969-02-25|Fluid pumps and motors
    KR970007557B1|1997-05-10|A centering device for a servo valve of a power steering device
    US4484870A|1984-11-27|Planetary hydraulic motor with irregularly arranged valving parts
    GB1145723A|1969-03-19|Rotary fluid pressure devices
    SU1190980A3|1985-11-07|Vehicle hydrostatic steering gear
    DK150934B|1987-09-28|HYDRAULIC TORQUE AMPLIFIER FOR VEHICLE CONTROLS
    US3456559A|1969-07-22|Rotary device
    GB2012876A|1979-08-01|Rotary Hydraulic Pumps
    EP0098682A1|1984-01-18|Planetary rotation machine
    GB2110759A|1983-06-22|Rotary positive-displacement fluid-machines
    US3124361A|1964-03-10|Pump drive assembly with fluid seal
    US3396668A|1968-08-13|Rotary devices
    同族专利:
    公开号 | 公开日
    FR2261435B1|1980-08-08|
    DE2505569A1|1975-08-21|
    DE2505569C2|1983-09-08|
    US3918856A|1975-11-11|
    BR7500986A|1975-12-02|
    GB1475206A|1977-06-01|
    IT1031858B|1979-05-10|
    NL175048B|1984-04-16|
    ATA124575A|1977-02-15|
    AU7792475A|1976-08-05|
    AT339745B|1977-11-10|
    JPS50117135A|1975-09-12|
    DK29175A|1975-10-20|
    JPS5443253B2|1979-12-19|
    NL175048C|1984-09-17|
    BE825487A|1975-05-29|
    NL7501980A|1975-08-21|
    IE40801L|1975-08-19|
    FR2261435A1|1975-09-12|
    LU71870A1|1975-06-24|
    IE40801B1|1979-08-15|
    CA1017224A|1977-09-13|
    DK135224C|1977-08-29|
    DK135224B|1977-03-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2243900A|1938-10-12|1941-06-03|Fulcher Frank Christian|Flexible driving coupling|
    US3385057A|1964-08-25|1968-05-28|Trw Inc|Hydraulic controller|
    US3360932A|1966-05-05|1968-01-02|Int Harvester Co|Rotary emittance valve|
    US3443378A|1967-04-04|1969-05-13|Trw Inc|Hydrostatic single unit steering system|
    US3528521A|1968-06-13|1970-09-15|Allis Chalmers Mfg Co|Hydraulic steering system|
    US3597128A|1969-04-10|1971-08-03|Trw Inc|Hydraulic device having hydraulically balanced commutation|DE2919051C2|1979-05-11|1986-09-18|Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen|Hydrostatic power steering|
    DE3037660C2|1980-10-04|1982-12-02|Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen|Hydrostatic power steering|
    US4665695A|1981-03-13|1987-05-19|Trw Inc.|Hydrostatic load sense steering system|
    US4457132A|1981-11-05|1984-07-03|Trw Inc.|Control apparatus|
    US4488569A|1982-04-23|1984-12-18|Trw Inc.|Apparatus with staged pressure differential for controlling fluid flow|
    DE3376104D1|1982-10-29|1988-05-05|Trw Inc|Hybrid load sense vehicle hydrostatic steering system|
    GB2134054B|1983-01-31|1986-05-29|Mo N Proizv Ob Str Dorozh Mash|Hydraulic power steering assembly|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US443463A|US3918856A|1974-02-19|1974-02-19|Gerotor fluid controller with twistable blade energy storing means|
    [返回顶部]