• 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:
    Glide shoe arrangement for a variable-crown roll (10). The said roll (10) comprises a non-revolving massive central axle (12), on which a cylindrical roll mantle (11) is journalled (13a,13b) as revolving, between which said axle (12) and the inside face (11') of the said roll mantle (11) piston-glide-shoe-combinations (201...20N) loaded by means of hydraulic pressure fluid are fitted. Their glide shoes (22) can be loaded by the intermediate of pistons (15) by means of pressures against the inside face (11') of the roll mantle (11) for the purpose of controlling the distribution of the nip pressure in the nip (N). The piston-glide-shoe combinations (201...20N) include bores (16) made into the axle (12), in which said bores there are loading pistons (15). Bearings (31,32) provided with spherical bearing faces (33) are fitted between the loading pistons (15) and their glide shoes (22), the center of rotation (0) of the said bearings being located at the side of the glide shoe (22). A pin-shaped projection part (25) is fitted in the said loading pistons (15), which said projection part extends through the spherical bearing (31,32,33). Between the said projection part (25) and the glide shoe (22) or a projection part (36) attached to the glide shoe (22), there is a sealed articulation arrangement (30). The pressure fluid is passed from the loading space (16p) of the pistons (15) through the said pin-shaped projection part (25) into the hydrostatic lubrication spaces (23a,23b) on the glide shoes (22).
    公开号:SU1639436A3
    申请号:SU874202306
    申请日:1987-04-15
    公开日:1991-03-30
    发明作者:Нисканен Юхани
    申请人:Валмет Ой (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to mechanical engineering and can be used in paper machines.
    The goal is to increase reliability and simplify the design.
    FIG. Figure 1 shows schematically a shaft with variable bombing, forming a press grip with a different shaft, a longitudinal section; on league. 2 - raerea AA in FIG. 1; FIG. 3 is a partial sectional view of the shaft and slide shoe of FIG. 1 (on an enlarged scale).
    A variable aeration shaft, such as a press or calender shaft of a paper machine, includes a non-rotating core 1, a rotating cylindrical casing 2 mounted on it and sliding along the longitudinal axis of the shaft between the core 1 and the cylindrical casing 2. The latter are hydrostatic chambers 4 and with supporting shanks 5. In the body of a non-rotating core 1 there are cylindrical cavities 6 in which the loading pistons 7 are placed. The latter are kinematically connected to the supports through 5 hinge joints by means of cylindrical rods 9, axis
    Ltd
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    ABOUT
    which are aligned with the central axes of the said cylindrical cavities of the core 6 of the core 1. The surface of the cylindrical rod 9 constituting the hinge connection 8 with the surface of the cylindrical bore 10 of the supporting shank 5 can be spherical.
    One of the ends of each cylindrical rod 9 is fixed in the central hole 11 of the loading piston 7.
    The hinge 8, which connects the other end of the cylindrical rod 9 with the support shank 5, is provided with a seal 12. An annular groove 13 is provided on the portion of the spherical surface of the cylindrical rod 9 to accommodate the aforementioned seal 12.
    Between the end surfaces of the support shafts 5 of the sliding shoes 3 and the loading pistons 7 are placed thrust bearings consisting of rings 16 and 17 with convex and concave spherical surfaces with bulges in the slots 14 and 15 on the ends of the support shank 5 and the loading piston 7. the center of rotation of the sphere from the side of the sliding shoes 3. The rings 16 and 17 of the thrust bearing are provided with central holes for accommodating cylindrical rods 9 therein.
    The ratio of the length L of the sliding shoe 3 in the circumferential direction to the radius of curvature R of the working surfaces of said thrust bearing is 3, preferably 4-6.
    The ratio of the mentioned length of the sliding shoe to the distance between the center of rotation of the sphere of the thrust bearing and the working surface of the sliding shoe should be 2, mainly 2.5-4, and the diameter of the loading piston should be greater than the mentioned radii of curvature and distance.
    I
    The diametral plane of the seal 12 is aligned with the center of rotation of the sphere of the thrust bearing.
     In a non-rotating core 1, loading pistons x 7, cylindrical rods x and shoes 3 are made, channels 18, 19, 20 and 21, respectively, for supplying the working fluid under pressure from the power source to the hydrostatic chambers 4 and cylindrical cavities 6 of the core.
    The axes of the channels 18-20 coincide with the central axes of the cylindrical rods 9, the loading pistons 7 and the cylindrical cavities 6 of the core 1, respectively.
    The support shanks 5 of the sliding shoes 3 can be located in the interface of the cylindrical surfaces of the core 1 and its cavities 6.
    In the supporting shank 5, a cylindrical bore 22 is made on the side of the sliding shoe 3, the cavity of which is connected through channels 20,19 in the cylindrical rod 9 and the loading piston 7 with a cavity between the end of the loading piston and the bottom of the cylindrical cavity 6 of the core and with hydrostatic chambers 4.
    The channels 21 for supplying fluid to the hydrostatic chambers may be provided with capillary tubes 23.
    The construction described above is as follows.
    The core 10, by means of spherical bearings (not shown) fixed on the pins 24 and 25, is displaced to the shaft 26, thus creating the required pressure in the grip and at the same time deflecting accordingly. To regulate the distribution (profile) of the pressure in the press grip, the hydraulic fluid is supplied to the hydrostatic chambers 4 of the sliding shoes 3 through the channels 18 into the hydrostatic chambers 4 of the sliding shoes 3. Under the influence . The hydraulic fluid pressures of the pistons 7 are displaced upwards so that the sliding shoes 3 associated with them abut against the inner surface of the casing 2 along the line of the press grip. When loading sliding poles-0 poppies 3 with pistons 7, the pressure of lubricating fluid in the hydrostatic chambers 4 of each shoe 3 turns out to be proportional to the pressure of hydraulic fluid on the piston 7, which loads this sliding shoe. Under the action of the loading forces, the core 1 bends accordingly, however, the normal sliding contact of the sliding shoes 3 with the inner surface of the casing 2 is not disturbed, since the shoes 3 and the piston 7 are interconnected by the hinge 8 described above 8. The sliding shoes 3 are capable also self-adjusting in the cross-sectional plane to the skin 51639436
    turning upward with respect to 2,
    bearing with rings 16 and 17 and without compromising the tightness of the channel through which the lubricating fluid enters the hydrostatic chamber 4 of the shoe 3.
    The proposed shaft design with a variable bombing provides increased reliability of operation due to the free displacement of the sliding shoe in all directions relative to the loading piston.
    权利要求:
    Claims (8)
    [1]
    1. Variable aeration shaft containing a non-rotating core mounted on the core of a rotating cylindrical housing and located along the longitudinal axis of the shaft between the core and the rotating housing sliding slippers with hydrostatic chambers that communicate with a pressure source of fluid under pressure, supporting shanks and the cylindrical cavities provided in the body of a non-rotating core, connected to a power source, loading pistons, kinematically connected with supporting the shanks through the hinge joints by means of cylindrical rods, the axes of which are aligned with the central axes of the cylindrical cavities of the core, as well as channels for supplying pressurized fluid to the hydrostatic chambers of the sliding shoes and to the cylindrical cavities of the core, in order to improve the reliability and simplify the design , it is provided with thrust bearings and thrust bearings with spherical workers located between the end surfaces of the supporting shafts of the sliding shoes and the loading pistons overhnost E with the center of rotation of the sphere by the sliding shoes and with central openings for accommodating therein lindrichevkih The cylinder rods, with one end of each cylindrical rod is secured in the central from10
    15
    20
    25
    thirty
    35
    40
    45
    50
    [2]
    2. Val according to claim I, distinguished with — that the axes of the fluid supply channels coincide, respectively, with the central axes of the cylindrical rods loading the pistons and the cylindrical cavities of the core.
    [3]
    3.Val popp. 1 and 2, characterized in that the portion of the surface of the cylindrical rod constituting the connection with the surface of the cylindrical hole of the hinge support shaft is spherical.
    [4]
    4.Val popp. 1-3, characterized in that an annular groove is provided on the portion of the spherical surface of the cylindrical rod to accommodate the hinge joint seal.
    [5]
    5. Val on PP. 1 to 4, characterized in that the diametrical plane of the seal is aligned
    with the center of rotation of the sphere of the thrust bearing.
    [6]
    6. Val on PP. 1-5, about tl and -ch that in the facing ends of the support shank and the loading piston facing each other are annular grooves in which, respectively, rings with convex and concave spherical surfaces of the thrust bearing are fixed.
    [7]
    7. Val popp. 1-6, characterized in that the supporting shanks of the sliding shoes are located in the interface of the cylindrical surfaces of the core and its cavities.
    [8]
    8. The shaft according to PP.1-7, about tl and h a root and with the fact that in the support shank from the side of the sliding shoe
    , a cylindrical bore is made, the cavity of which is communicated through channels in the cylindrical rod and the loading / stinging piston with the cavity between the end of the loading piston and the bottom of the cylindrical cavity of the core, as well as hydrostatic chambers, while the channels for supplying the liquid to the hydrostatic chambers are provided with capillary tubes.
    Val on PP. 1-8, which distinguishes the loading piston, and the hinge is 55 W and the fact that the ratio of the length connection connecting the other sliding shoe in the finally circumferential cylindrical rod with the supporting shank is made with a seal.
    9.
    and
    the radius of curvature of the working surfaces of the thrust bearing is greater than 3, preferably 4-6,
    five
    0
    five
    0
    five
    0
    five
    0
    2. Val according to claim I, distinguished with — that the axes of the fluid supply channels coincide, respectively, with the central axes of the cylindrical rods loading the pistons and the cylindrical cavities of the core.
    3.Val popp. 1 and 2, characterized in that the surface area of the cylindrical rod constituting the connection with the surface of the cylindrical hole of the hinge support shaft is spherical.
    4.Val popp. 1-3, characterized in that an annular groove is provided on the portion of the spherical surface of the cylindrical rod to accommodate the hinge joint seal.
    5. Val on PP. 1 to 4, characterized in that the diametrical plane of the seal is aligned
    with the center of rotation of the sphere of the thrust bearing.
    6. Val on PP. 1-5, about tl and -ch that in the facing ends of the support shank and the loading piston facing each other are annular grooves in which, respectively, rings with convex and concave spherical surfaces of the thrust bearing are fixed.
    7. Val popp. 1-6, characterized in that the supporting shanks of the sliding shoes are located in the interface of the cylindrical surfaces of the core and its cavities.
    8. The shaft according to PP.1-7, about tl and h a root and with the fact that in the support shank from the side of the sliding shoe
    , a cylindrical bore is made, the cavity of which is communicated through channels in the cylindrical rod and the loading / stinging piston with the cavity between the end of the loading piston and the bottom of the cylindrical cavity of the core, as well as hydrostatic chambers, while the channels for supplying the liquid to the hydrostatic chambers are provided with capillary tubes.
     and lz
    9.
    and
    U and with the fact that the ratio of the length of the sliding shoe in the circumferential direction to the radius of curvature of the working surfaces of the thrust bearing is greater than 3, mainly 4-6,
    the ratio of the length of the sliding shoe is greater than 2, mainly 2.5-4.0, and
    to the distance between the center of rotation, the diameter of the loading piston is larger than the sphere of the thrust original and the working curvature radius and the surface of the sliding shoe ramp.
    WITH
    FIG. one
    A-l
    FIG. 2
    Z3
    ftteJ
    类似技术:
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    SU1639436A3|1991-03-30|Shaft with variable camber
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    SU1765506A1|1992-09-30|Axial piston hydraulic machine
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    同族专利:
    公开号 | 公开日
    FI74072B|1987-08-31|
    EP0242345B1|1990-01-31|
    CA1306893C|1992-09-01|
    US4757586A|1988-07-19|
    FI74072C|1987-12-10|
    AT50031T|1990-02-15|
    DE3761586D1|1990-03-08|
    FI861612A0|1986-04-16|
    JPS62243898A|1987-10-24|
    EP0242345A3|1988-01-27|
    EP0242345A2|1987-10-21|
    JPH07107238B2|1995-11-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE9205796U1|1992-04-30|1993-08-26|Kuesters Eduard Maschf|Roller with support bar|AU449519B2|1970-11-30|1974-05-30|Advanced Products Pty Ltd|Journal support bearings for rotating shafts|
    DE2229421A1|1972-06-16|1974-01-03|Bosch Gmbh Robert|PISTON SLIDER ELEMENT FOR HYDROSTATIC PISTON MACHINES|
    CH567667A5|1972-09-16|1975-10-15|Escher Wyss Ag|
    US3782793A|1973-01-24|1974-01-01|Hoesch Werke Ag|Bearing construction|
    CH576083A5|1974-02-12|1976-05-31|Escher Wyss Ag|
    GB1507987A|1974-07-15|1978-04-19|British Steel Corp|Mill stand roll parameter monitor|
    DE2502161A1|1975-01-21|1976-07-29|Voith Gmbh J M|PRESS ROLLER FOR PAPER MACHINES FOR THE GENERATION OF A LINE PRINT|
    US4064607A|1975-01-21|1977-12-27|J. M. Voith G.M.B.H.|Compression roller for paper producing machinery|
    CH615487A5|1977-02-23|1980-01-31|Escher Wyss Ag|
    AT360831B|1977-12-20|1981-02-10|Escher Wyss Ag|HYDRAULIC SUPPORT ELEMENT|
    DE2838427A1|1978-09-02|1980-03-06|Voith Gmbh J M|ROLLER FOR PRESSURE TREATMENT OF MATERIAL SHEETS, IN PARTICULAR PAPER SHEETS|
    DE2849253C2|1978-11-08|1981-01-08|Escher Wyss Ag, Zuerich |Deflection adjustment roller|
    DE2942002C2|1979-10-17|1982-06-16|Kleinewefers Gmbh, 4150 Krefeld|Pressure treatment roller|
    DE3007112A1|1980-02-26|1981-09-03|J.M. Voith Gmbh, 7920 Heidenheim|SUPPORT DEVICE FOR A ROLLER|
    AT368563B|1980-03-25|1982-10-25|Escher Wyss Ag|HYDROSTATIC SUPPORT ELEMENT, ESPECIALLY FOR A DEFLECTION ADJUSTING ROLLER FOR PRESSURE TREATMENT OF MATERIAL SHEETS, IN PARTICULAR PAPER SHEETS|
    DE3011669C2|1980-03-26|1982-11-25|J.M. Voith Gmbh, 7920 Heidenheim|Press roll with a device for correcting the deflection of the roll shell|
    DE3042616C2|1980-11-12|1983-04-07|Kleinewefers Gmbh, 4150 Krefeld|Pressure treatment roller with hydraulic support|
    DE3306838A1|1983-02-26|1984-08-30|J.M. Voith Gmbh, 7920 Heidenheim|PRESS ROLLER WHICH BEND IS ADJUSTABLE|US5060357A|1990-06-21|1991-10-29|Beloit Corporation|Self-loading controlled deflection roll|
    DE4426513C2|1994-07-27|1997-07-17|Voith Sulzer Papiermasch Gmbh|Deflection adjustment roller|
    DE19960872A1|1999-12-17|2001-07-05|Valmet Corp|Pair of rollers to form a long press nip|
    DE10239089A1|2002-08-26|2004-03-11|Voith Paper Patent Gmbh|Slip ring for papermaking machine, chipboard mill, printing press, decor paper printing press or textile machine has elastic tilt-ring between crown and base|
    CN105697558A|2016-04-01|2016-06-22|江苏鹏飞集团股份有限公司|Self-positioning slide shoe bearing|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI861612A|FI74072C|1986-04-16|1986-04-16|GLIDSKOARRANGEMANG FOER BOEJNINGSKOMPENSERAD VALS.|
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