• 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:
    1. DISTRIBUTION DEVICE FOR POWER-STEERING CONTROL SYSTEM WITH A BOOSTER, containing two sourse cylindrical elements mounted rotatably one relative to another around a common longitudinal axis in two directions opposite to the neutral position, the first of these elements, made in the form of a sleeve, is installed the possibility of rotation inside a hole made in a fixed case, and the second element, which is a rotor, is rotatably mounted inside the sleeve, while The distributor is hydraulically connected via holes to pressure hydraulic line, e hydraulic tank and to the cavities of the actuating hydraulic cylinder, the said holes being formed in the rotor by pairs of longitudinal grooves made on its outer lateral surface, characterized in that construction, by enabling the manufacture of hydraulic channels by milling, on the side surface of the sleeve are made two pairs of diametrically opposite windows, located The spacing is between two adjacent longitudinal grooves of the rotor, with the possibility of forming between them two channels of variable cross section having the same cross sections in the neutral position of cylindrical elements. 2. The device according to claim 1, wherein the holes associated with the pressure hydraulic line and the hydraulic tank are connected to a pair of windows, and the holes connected to the cavity of the actuating hydraulic cylinder are connected to a pair of longitudinal grooves. 3. The device according to claim 1, wherein the holes associated with pressure hydraulic line and hydraulic tank are connected to a pair of grooves, and the holes connected to the cavity of an executive hydraulic cylinder, are connected to a pair of windows. 4. Device on PP. 2 and 3, in that the opposite edges of the said windows are made obliquely. 5. Device on PP. 1-, which is equipped with a torsion between the rotor and the sleeve, and a pin, which is fitted with the possibility of connections between the torsion and the sleeve and passing through the hole (X) M in the hole made in the rotor. 6. The device according to paragraphs. 1-5 o tl i-. This is because the hollow space of the rotor is connected to the hydraulic tank, and the said longitudinal grooves are arranged to communicate with adjacent channels made in the rotor, and in the sleeve
    公开号:SU1019997A3
    申请号:SU792832557
    申请日:1979-10-26
    公开日:1983-05-23
    发明作者:Кервагоре Жильберт
    申请人:Сосьете Аноним Д.Б.А. (Фирма)；
    IPC主号:
    专利说明:

    Yen cavities reported to each of the adjacent channels.
    7. The device according to claims 1-6, which is made up of the fact that the cavities are channels made in the radial direction in the sleeve.
    8. Device on PP. 1-7, characterized in that each of
    The opposite edges of the windows are made of the middle part in the form of a projecting wedge and two inclined parts located on its both sides.
    Priority points:
    10.27.78p.1-5,
    06.25.79 pp.6-8
    The invention relates to a transport engineering, and more specifically to a switchgear for an electronic power steering system. A switchgear for a power steering system with an amplifier containing two coaxial cylindrical elements mounted rotatably relative to each other around a common longitudinal axis in two directions opposite to the neutral position, the first of these elements, made in the form of a sleeve, is known rotatably inside a hole made in a fixed case, and the second element, which is a rotor, is mounted with the possibility of rotation inside the sleeve, the bushing and rotor form a distributor hydraulically connected by holes to pressure hydraulic line, to the hydraulic tank and to the cavities of the actuating hydraulic cylinder, said holes being formed in the rotor by pairs of longitudinal grooves made on its outer lateral surface. A disadvantage of the device is the complexity of manufacturing individual parts , hydraulic channels. The aim of the invention is to simplify the design by allowing the manufacture of hydraulic channels by milling. This goal is achieved by the fact that in a switchgear for a steering system with a booster, containing two coaxial cyriidric elements, installed With the possibility of rotation one relative to another around a common longitudinal axis in two directions opposite to the neutral position, the first of these elements, in the form of a sleeve, installed with the possibility of rotation inside the hole, made in a fixed case, and the second element, which is a rotor, is installed with the possibility of rotation not inside the sleeve, wherein the sleeve and the rotor form a distributor hydraulically connected by means of openings to pressure hydroline to the hydraulic tank and to the cavities of the actuating hydraulic cylinder, and the said openings are formed in the rotor by pairs of longitudinal grooves made on its outer side surface on the side surface of the sleeve Two pairs of diametrically opposite windows are made, located between two adjacent longitudinal grooves of the rotor with the possibility of 9 forming between them two AC channels nnogo sections having the same section in the neutral position the cylindrical elements. In addition, the aforementioned holes associated with pressure hydraulic and hydraulic tanks are connected to a pair of windows, and the holes connected to the cavities of the executive hydraulic cylinder are connected to a pair of longitudinal grooves. In addition, the holes connected to the pressure hose and hydraulic tank are connected to a pair of longitudinal grooves, and the holes connected to the cavities of the actuating hydraulic cylinder with a pair of windows. Moreover, the opposite edges of said windows are made obliquely. The device is equipped with a torsion bar mounted between the rotor and the sleeve, and a pin mounted with the possibility of connecting the torsion and the sleeve and passing a hole in the hole made in the rotor with a gap. In addition, the hollow space of the rotor can be connected to the hydraulic tank, with the said longitudinal grooves arranged to communicate with adjacent channels formed in the rotor, and cavities in the sleeve are associated with each of the adjacent channels. The channels are radially made in the sleeve. Each of the opposite edges of the windows can be made of the middle part in the form of a protruding wedge and on its both sides two inclined parts. FIG. 1 shows a distribution device for the power steering system; FIG. 2 is a section A-A in FIG. one; in fig. 3 section bb in fig. one; in fig. - section BB in FIG. one; in fig. 5 a section of YYY in FIG. one; in fig. 6 is a section d-d in FIG. one; Fig. 7 is a detailed view of a part of the device on a larger scale; FIG. 8 shows a distribution device for a steering system with a booster, a longitudinal section; in FIG. E section EE of FIG. eight; in fig. 10 is a section on MF in FIG. 8; in fig. 11 section 3-3 in FIG. eight; in fig. 12, section II-I in FIG. 8. Switchgear for power steering system Fir. 1) contains two coaxial cylindrical elements - a sleeve 1 and a rotor 2 mounted rotatably. One relative to another around a common longitudinal axis in two directions opposite to the neutral position. The sleeve 1 is mounted rotatably inside a hole 3 made in a movable body 4, The rotor 2 is mounted rotatably inside the sleeve 1, the sleeve 1 and the rotor 2 form a distributor hydraulically connected through holes 5-7 with porous hydraulic line 8, with the hydraulic tank 9 and with cavities 1 O 4 j 11 the hydraulic cylinder in FIG. 1 shows only one hole 7). The continuation of the holes are a pair of longitudinal grooves 12 and 13, made on the outer side of the rotor 2. On the side of the sleeve 1 there are two pairs of diametrically opposed windows 1 4 and 15. Windows TL and 15 are located between two adjacent longitudinal grooves 12 and TZ of the rotor 2 with the possibility of forming between them channels 16-19 of variable cross section, having the same cross sections in the neutral position of cylindrical elements. In one embodiment, holes 5 and 6 associated with pressure hydraulic line 8 and hydraulic tank 9 are connected to a pair of windows 14 and 15. Holes 7 connected to cavities 10 and 11 of an actuating hydraulic cylinder are connected to a pair of longitudinal grooves 12 and 13 In accordance with another embodiment, holes 5 and 6 are connected to a pair of longitudinal grooves 12 and 13. And holes 7 are connected to a pair of windows It and 15. The opposite edges 20-22 of windows 1 and 15 have the shape of a truncated cone. The switchgear is equipped with a torsion bar 23 installed between the rotor 2 and the sleeve 1, as well as a pin 2k mounted to connect the torsion bar 23 and the sleeve 1 with a gap in the recess 25 made in the rotor 2. According to a variant of the invention, the hollow space 26 is connected to a guide 9a, the longitudinal grooves 12 and 13 are adapted to interact with adjacent channels 27 made in the rotor 2. In the sleeve 1, cavities 28 are made with the possibility of blocking each of the adjacent channels 27 and the edges of the corresponding longitudinal groove 12 and 13, The cavities 28 are channels made in the radial direction in the sleeve, the end of each channel being configured to overlap it with the inner surface of the body k. The opposite edges 20-22 can be made with the middle part in the form of a protruding wedge and located on both sides of the two inclined parts. The distribution device operates as follows. In the rest position (Fig. 1, channels 16-19 of variable cross section have the same section. In grooves 12 and 13 have the same pressure, we take this pressure to be substantially equal to half the pressure created by the pump and transmitted through the hole. When the turning moment is applied to the right, it is converted rotational movement of the rotor 2 in the clockwise direction, but the sleeve 1 does not rotate due to the elasticity of the torsion 23 torsion. This relative movement between the sleeve 1 and the rotor 2 leads to an increase in the cross section of the channels 16, coinciding them with grooves 12 (Fig. 4), and, conversely, to a reduction in the cross section of the channels 17 that coincide with the grooves 12 (Fig. 6). The result is the opposite for channels 18 that coincide with the grooves 13, i.e. their cross section While the cross section of the channels 19 coinciding with the grooves 13 increases, as a result, the pressure in the grooves 12 connecting the cavity 11 through the channels 29 increases, and in the grooves 13 connecting the cavity 10 through the channels 30, it decreases. The difference in pressure, which is thus established between the cavities 10 and 11 of the actuating cylinder-amplifier, is a function of the applied moment of rotation, as well as the profile chosen for the edges 31 and 32. In the case of a left turn, a reverse occurs, i.e. . the pressure in the cavity 10 decreases and the pressure in the cavity 11 increases, this causes the moving element of the booster to move in the opposite direction. Elements of the hydraulic system are simpler to implement than known devices. In particular, the rotor grooves 12 and 13 can be made by milling with normal tolerances, and windows I and 15 in sleeve 1 can be made by flashing or grinding as roughing, and then finalized by electro-erosion or drawing (device in FIG. .8 functions the same as the device in Fig. 1). If the turning moment is applied, for example, to the right, the rotor 2 rotates clockwise (Fig. 912; but the sleeve does not rotate due to elasticity during torsion 23 rotation. This relative offset between the rotor 2 and sleeve 1 leads to an increase in the cross section of the channel between the grooves 12 and windows 15 (Fig. 1P) and a reduction in the cross section of the passage between the grooves 12 and windows 1 (Fig. 12). The result is the opposite for the cross sections of the channels between the grooves t3, on the one hand, and windows 1 and 15, on the other hand. the grooves 12 are connected to a high pressure source and, the pressure increases in the windows 15 communicating with the cavity 11, and decreases in the windows AND associated with the cavity 10. The resulting pressure difference between compartments 11 and 10 determines the force. The distribution device consisting of pairs of channels 27 and cavity 28 connecting the grooves 13 to the reservoir, creates a backpressure of the bushing of the grooves 13 so as to reduce the effects of cavitation. Obviously, this device functions as a Wheatstone hydraulic bridge, and any angular movement of the rotor 2 during rotation causes an increase in g The slots in the grooves 13. Thus, it is possible to almost completely suppress noise when flowing for pressures in the cavities of the actuating cylinder — an amplifier of 5 to 7 bar corresponding to small angles of rotation during normal driving. Noise is heard only during maneuvers, for which the axles, significant turns, and the pressure then reaches 30 bar. The invention provides, in comparison with the known device, better coordination of the hydraulic system with a given law of change of the regulating variable. i 4 L
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    fr CD -JL A FIG. Z
    5-1 ff
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    UZ.S A
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    权利要求:
    Claims (8)
    [1]
    1. A DISTRIBUTION DEVICE FOR A STEERING STEERING SYSTEM, comprising two sorsial cylindrical elements mounted rotatably relative to one another along a common longitudinal axis in two opposite directions from the neutral position, the first of these elements being made in the form of a sleeve mounted with the possibility of rotation inside the hole made in the fixed housing, and the second element, which is the · rotor, is installed with the possibility of rotation inside the sleeve, while the sleeve and a rotor is formed by a distributor hydraulically connected through openings with a pressure hydraulic line, with a hydraulic tank and with the cavities of the actuating hydraulic cylinder, said openings being formed in the rotor by pairs of longitudinal grooves made on its outer side surface, characterized in that, in order to simplify the design, by making it possible manufacturing hydraulic channels by milling, on the side surface of the sleeve there are two pairs of diametrically opposite windows located between two neighboring longitudinal grooves of the rotor with the possibility of formation between them of two channels of variable cross-section having the same cross-section in the neutral position of cylindrical elements.
    [2]
    2. The device according to π. 1, characterized in that the holes associated with the pressure hydraulic line and the hydraulic tank are connected to a pair of windows, and the holes associated with the cavities of the actuating hydraulic cylinder are connected to a pair of longitudinal grooves.
    [3]
    3. The device according to claim 1, characterized in that the openings connected to the pressure hydraulic line and the hydraulic tank are connected to a pair of grooves, and the openings connected to the Executive hydraulic cylinder cavities are connected to a pair of windows.
    [4]
    4. The device according to paragraphs. 2 and 3, characterized in that the opposite edges of said windows are beveled.
    [5]
    5. The device according to paragraphs. 1-4, which is characterized in that it is provided with a torsion bar mounted between the rotor and the sleeve and a pin mounted with the possibility of connecting the torsion bar and the sleeve and passing in a hole in the rotor with a gap.
    [6]
    6. The device according to πϊι. 1-5, characterized in that the hollow space of the rotor is connected to the valve body, said longitudinal grooves being arranged to communicate with adjacent channels made in the rotor, and cavities in the sleeve communicating with each of the adjacent channels.
    [7]
    7. The device according to pl. 1-6, characterized in that the cavity is a channel made in the radial direction in the sleeve.
    [8]
    8. The device according to paragraphs. 1-7, characterized in that each of the opposite edges of the windows is made of a middle part in the form of a protruding wedge and two inclined parts located on both sides thereof.
    P r and r and there: 10.27.78 to 06.25.79 on tet on p at n to pp, 1-5, pp. 6-8
    类似技术:
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    US4460016A|1984-07-17|Rotary servovalve
    JPH0629035B2|1994-04-20|Fluid pressure control valve
    US4353288A|1982-10-12|Rotary slide steering valve for auxiliary power steerings
    GB2042442A|1980-09-24|Power steering valve
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    US4799514A|1989-01-24|Rotary servovalve for power-assisted steering system
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    US5127312A|1992-07-07|Power assist device for automotive steering system
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    US4696198A|1987-09-29|Power assist device for automotive steering system
    JPH06144254A|1994-05-24|Rotary valve
    JPH10175558A|1998-06-30|Power steering control valve
    同族专利:
    公开号 | 公开日
    PL123658B1|1982-11-30|
    US4303099A|1981-12-01|
    EP0012043A1|1980-06-11|
    ES485376A1|1980-05-16|
    DE2965519D1|1983-07-07|
    AU527367B2|1983-03-03|
    PL219264A1|1980-07-14|
    AU5208179A|1981-01-08|
    EP0012043B1|1983-05-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3033051A|1959-03-05|1962-05-08|Gen Motors Corp|Power steering gear|
    GB997065A|1963-07-22|1965-06-30|Burman & Sons Ltd|Hydraulically operated vehicle steering mechanisms|
    US3707167A|1970-06-25|1972-12-26|Trw Inc|Hydraulic controller including rotary valve|
    US3807456A|1970-06-25|1974-04-30|Trw Inc|Hydraulic controller including rotary valve|
    FR2280538A1|1974-07-29|1976-02-27|Powersteering Trust Reg|Rotary hydraulic distributor for power steering mechanism - has inner rotor with axial and radial ports and outer rotor with radial ports|
    FR2382361B1|1977-03-02|1980-02-01|Dba|EP0083490A3|1981-12-31|1984-05-02|Adwest Engineering Limited|Rotary valve for a power assisted steering mechanism|
    GB2122152B|1982-06-18|1986-06-25|Cam Gears Ltd|A power assisted steering gear|
    GB2122151B|1982-06-18|1986-06-25|Cam Gears Ltd|Power assisted steering gear|
    DE3303063C2|1983-01-29|1986-11-27|Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen|Rotary slide steering valve for hydraulic power steering for vehicles|
    GB2144380B|1983-08-05|1987-04-29|Cam Gears Ltd|Power steering rotary valve|
    DK161759C|1985-03-23|1992-01-20|Zahnradfabrik Friedrichshafen|HYDROSTATIC STEERING EQUIPMENT, ISRAEL FOR MOTOR MOVED VEHICLES|
    US4848402A|1985-04-06|1989-07-18|Zahnradfabrik Friedrichshafen, Ag.|Rotary slide valve for hydraulic auxiliary power steerings|
    DE4316005A1|1993-05-13|1994-11-17|Zahnradfabrik Friedrichshafen|Rotary slide valve for power steering systems of motor vehicles|
    DE102020119281A1|2020-07-22|2022-01-27|Knorr-Bremse Systeme für Nutzfahrzeuge GmbH|Shaft arrangement and steering gear with a shaft arrangement|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR7830653A|FR2439697B1|1978-10-27|1978-10-27|
    FR7916315A|FR2459749B2|1979-06-25|1979-06-25|
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