• 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:
    Gear pump and motor apparatus adapted to operate both as a pump and as a motor include two meshing gears whose shafts are supported in a housing chamber by respective bearing sleeves whose end faces sealingly engage the end faces of the respective gears. An oil supply passage is formed in each of the bearing sleeves in a region diametrically opposed to flat surface portions formed on the outer peripheral surface of the bearing sleeves and near a central plane which passes through the axes of cylindrical chamber portions in which the gears are situated. Oil leaking from the pump/motor chamber is directed into spaces defined between the peripheral surfaces of the bearing sleeves and the respective chamber portions through the oil supply passages into the bearing sleeve openings to lubricate the gear shafts which are received therein. The ratio of the length to the diameter of each of the oil supply passages is less than or equal to about 10.
    公开号:SU1052168A3
    申请号:SU802996312
    申请日:1980-10-21
    公开日:1983-10-30
    发明作者:Мянттяри Эркки；Корпинен Матти
    申请人:Валмет Ой (Фирма)；
    IPC主号:
    专利说明:

    17a
    O1
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    Cb 00
    The invention relates to mechanical engineering, in particular, to gear pumps or motors.
    A gear pump or a motor is known, which contains two gears which are in engagement, which are housed in the bores of the housing, the trunnions of which are mounted in the Separate support sleeves, which mate with each other on a flat surface, freely moving in the axial direction and pressed by the working fluid pressure to the end surfaces gears, cavities formed along the surface bores of the housing and the outer surfaces of the support sleeves, channels in the support sleeves for the supply of lubricant and gear axles, made from the sides, opposite their flat surfaces, the geometrical axes of which are located in the plane passing through the geometrical axes of the body bores or close to it, and the ratio of the duct length to their diameters is less than 10
    The disadvantage of the known pump or WOTOpa is a small work resource.
    The invention is an increase in the work resource.
    . This goal is achieved by the fact that in a gear pump or a motor containing two gears meshed, placed in the bores of the housing, the trunnions of which are installed in separate support sleeves that mate with each other on a flat surface, freely moving in the axial direction and compressed by the working pressure. fluids to face surfaces of gears, cavities formed by surfaces of body bores and external surfaces of support sleeves, channels in support sleeves for supplying lubricant to the pinions of gears not on the sides opposite to their flat surfaces, the geometrical axes of which are located in the plane passing through the geometrical axes of the body bores or near it, and the ratio of the length of the channels to their diameters is less than 10, the inlet of each channel for lubricating the trunnions is in the region the center of the support sleeve relative to its length, and the outlet - closer to the corresponding end surface of the gear.
     FIG. 1 shows the layout of the support sleeves in the bores of the housing; in fig. 2 is a section A-A in FIG. one.
    A gear pump or a motor contains two gears 1 and 2 that are in engagement, housed in the bores 3 and 4 of the housing 5, the trunks b and 7 of which DC are installed in separate supporting
    sleeves 8 and 9, aligned together on a flat surface 10, freely moving in the axial direction and pressed by the pressure of the working fluid to the end surfaces of the 11 and 12 gears 1 and 2, cavities 13 and 14, formed by the surfaces 15 and 16 of the bores 3 and 4 housings 5 and outer surfaces 17 support sleeves 8 and 9, channels 18 and 19 in support sleeves 8 and 9 for supplying lubricant to the trunnions 6 and 7 of gears 1 and 2, which are made on the sides opposite to their flat conductance 10, are geometric axes 20 and 21 of which are located in plane 22 passing through geometrically The axes 23 and 24 of the bores 3 and 4 of the housing 5 or Near it, the ratio of the length of the channels 18 and 19 to their diameters is less than 10, the inlet 25 of each channel 18 or 19 for lubricating the trunnions b and 7 is located near the center of each support sleeve 8 or 9 relative to its length, and the outlet 26 is closer to the corresponding end surface 11 or 12 of gear 1 or 2.
    Gear pump or motor in pump mode works as follows ..
     When the gears 1 and 2 rotate, the working fluid enters the pump inlet, is caught by the gear teeth 1 and 2 and is transferred to the pump outlet. At this pressure of the working fluid, the support sleeves 8 and 9 are pressed onto the flat surface 10 one to another and to the surfaces 15, J 16 of the bores 3 and 4 of the housing 5, simultaneously the working fluid from the cavities 13 and 14 through the capillary gaps between the surfaces 15 and the 16 bores 3 and the outer surfaces of the 17 support sleeves 8 and 9 are fed through the channels 18 and 19 to the pins b and 7 and ensure their lubrication. In this case, the flow rate of the working fluid supplied to the pins 6 and 7 for their lubrication is determined not only by the differential pressure of the working fluid. But also the geometrical parameters of the capillary gap formed by the surfaces 15 and 16 of the bores 3 of the housing 5 and the outer surfaces of the 17 supporting sleeves 8 and 9, which allow the channels 18 and 19 to be performed with a ratio of length to their diameters less than 10, and The required flow rate of the working fluid for lubricating the trunnions 6 and 7 must be ensured by the geometry of the capillary gap.
    The technical and economic effect consists in a substantial increase in the service life of the device as a result of an improvement in the conditions for smearing the pinions of the gears.

    / L-15 5 / l lg-h /
    权利要求:
    Claims (1)
    [1]
    GEAR PUMP OR MO— 4 TOR, containing two gears located in gears, housed in / bores of the housing, the trunnions of which are mounted in separate support bushes, mated together on a flat surface, freely moving axially and pressed by the pressure of the working fluid to the end surfaces of the gears , cavities formed by the surfaces of the housing bores and the outer surfaces of the support sleeves, channels in the support sleeves for supplying lubricant to the pinions of the gears, made from the sides opposite to their faces surfaces, the geometric axes of which are located in the Plane passing through the geometric axes of the body bore or near it, and the ratio of the length of the channels to their diameters is less than 10, and torn with the fact that, 'In order to increase In view of the service life, the inlet of each channel for lubricating the pins is located in the center of the support sleeve relative to its length, and the outlet is closer to the corresponding end surface of the tester -
    89I2S0I>
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1052168A3|1983-10-30|Gear pump
    US1379587A|1921-05-24|Pump
    US2391072A|1945-12-18|Hydraulic pump
    US5989143A|1999-11-23|Arrangement for lubricating a differential assembly of a work machine
    US2756684A|1956-07-31|Rotary gear-type pump
    KR950011885A|1995-05-16|Lubrication of the Power Splitter on Tandem Drive Axles
    US3637049A|1972-01-25|Continuous, self-pumping lubrications system for splined shafts
    US20110212805A1|2011-09-01|Method and apparatus for lubricating a differential in an axle assembly
    US2276107A|1942-03-10|Gear pump
    US2571377A|1951-10-16|Rotary displacement pump
    US1673259A|1928-06-12|Pump
    US1706829A|1929-03-26|Pump
    US2965040A|1960-12-20|Gear pumps
    US9004890B2|2015-04-14|Gear wheel pump
    CA1250789A|1989-03-07|Low pressure lubrication system for fluid device
    US6692244B2|2004-02-17|Hydraulic pump utilizing floating shafts
    US3043230A|1962-07-10|High pressure gear pump
    EP0112011B1|1987-09-16|Bearings for gear pumps
    US4245969A|1981-01-20|Pump
    US2975964A|1961-03-21|Rotary machine
    US4242064A|1980-12-30|Rotary fluid pump with eccentrically moving pumping sleeve
    US2727760A|1955-12-20|High-speed rotary fluid seal
    JPH10122160A|1998-05-12|Gear pump
    RU205690U1|2021-07-28|GEAR PUMP
    DE1941641B2|1975-11-27|Positive displacement gear type oil pump - has longitudinal grooves in mid plane of casing to lubricate bearings
    同族专利:
    公开号 | 公开日
    FI62713C|1983-02-10|
    US4395207A|1983-07-26|
    IT1133970B|1986-07-24|
    IT8025485D0|1980-10-21|
    FI62713B|1982-10-29|
    FR2468009A1|1981-04-30|
    SE8007361L|1981-04-23|
    FI793282A|1981-04-23|
    BR8006771A|1981-04-28|
    SE449020B|1987-03-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3063378A|1961-01-17|1962-11-13|Gen Metals Corp|Pump construction|
    US3528756A|1968-12-04|1970-09-15|Borg Warner|Pressure loaded pump|
    DE1941641B2|1969-08-16|1975-11-27|Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen|Positive displacement gear type oil pump - has longitudinal grooves in mid plane of casing to lubricate bearings|
    GB1382426A|1971-05-18|1975-01-29|Dowty Hydraulic Units Ltd|Rotary positive-displacement hydraulic machines|
    DE2630222A1|1976-07-06|1978-01-19|Hohenzollern Huettenverwalt|INTERNAL GEAR PUMP OR MOTOR|GB2169350B|1985-01-05|1989-06-21|Hepworth Plastics Ltd|Gear pumps|
    US4553915A|1985-01-08|1985-11-19|Dana Corporation|Low pressure lubrication system for fluid device|
    US4682938A|1985-12-26|1987-07-28|Sundstrand Corporation|Gear pump bearings|
    FR2668548B1|1990-10-24|1993-01-08|Malfit Jean|HYDRAULIC GENERATOR-RECEIVER FOR POWER TRANSMISSION.|
    US5403173A|1994-03-08|1995-04-04|Alliedsignal Inc.|Housing for intermeshing gear pump|
    US5641281A|1995-11-20|1997-06-24|Lci Corporation|Lubricating means for a gear pump|
    US5702234A|1995-12-01|1997-12-30|Micropump, Inc.|Fluid pump with bearing set having lubrication path|
    EP0822336B1|1997-11-07|2003-04-23|Maag Pump Systems Textron AG|Method for stabilizing the temperature of gear pumps|
    US6205779B1|1999-03-31|2001-03-27|Daimlerchrysler Corporation|Integral hub driven gears|
    US6179594B1|1999-05-03|2001-01-30|Dynisco, Inc.|Air-cooled shaft seal|
    US6213745B1|1999-05-03|2001-04-10|Dynisco|High-pressure, self-lubricating journal bearings|
    US6716011B2|2001-06-14|2004-04-06|Monarch Hydraulics, Inc.|Hydraulic pump utilizing floating shafts|
    DE102007028675B4|2007-06-21|2010-04-22|Voith Patent Gmbh|Hydrostatic machine|
    CN102927002B|2012-12-04|2015-01-07|泸州众大科技液压件有限公司|High-pressure gear pump|
    US11060559B2|2018-06-11|2021-07-13|Eaton Intelligent Power Limited|Bi-metallic journal bearing with additive manufactured sleeve|
    US10584747B1|2018-12-03|2020-03-10|Hamilton Sundstrand Corporation|Fuel pump bearing with non-concentric inner diameters|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI793282A|FI62713C|1979-10-22|1979-10-22|KUGGHJULSPUMP OCH / ELLER -MOTOR|
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