• 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 gear pump having a housing and a pump space or chamber within which there are arranged two intermeshing, fluid-conveying gears, each gear being arranged upon an associated shaft. Each shaft is provided at least at the one side of the related gear with a shaft bearing and between such shaft bearing and the gear a sliding ring packing or seal which bounds the pump space or chamber. The sliding ring packing comprises two concentric sliding rings arranged at least approximately in a common radial plane, there being formed between such sliding rings an intermediate space which can be impinged with a barrier or blocking fluid.
    公开号:SU912056A3
    申请号:SU792747553
    申请日:1979-04-06
    公开日:1982-03-07
    发明作者:Хаупт Фритц
    申请人:Мааг-Цанрэдер Унд Машинен Аг (Фирма)；
    IPC主号:
    专利说明:

    (5) GEAR PUMP
    The invention relates to mechanical engineering, in particular, to gear pumps.
    A gear pump is known, comprising a housing, 8 of which has two gears that are in engagement with each other, supplying gear gears, each of which is mounted on its shaft, which has at least one limiting working space, a sliding annular seal with two sealing kolyda between the end surfaces of the inner sleeve of the shaft bearing and the fixed ring, "is connected with the housing D.
    A disadvantage of the known gear pump is the low service life when pumping highly toxic and corrosive liquids.
    The purpose of the invention is to increase the service life when pumping highly viscous and corrosive liquids.
    This goal is achieved by the fact that the inner sleeve of the bearing is provided with an annular protrusion, and the sliding annular seal is made in the form of two shaped 5 rings that are spring-loaded relative to the stationary ring and are installed concentrically to each other, lying in the same radial plane and placed in the annular cavity formed by radial and face the surface of the shaft,
    10 annular protrusion of the inner sleeve of the bearing and the fixed ring, moreover, the sealing rings are located on the outer surface of the outer shaped ring and on the inner surface of the inner shaped ring, and are mated, respectively, with the inner radial surface of the annular protrusion and the shaft surface, and the annular cavity between 20 DN shaped rings connected to the channel for supplying sealing fluid.
    At the same time, each bearing sleeve 25 is fixed on the shaft from
    axial movement of the nuts and clamping cap.
    Fig, 1 shows a gear pump, a longitudinal section; in fig. 2, node 1 in FIG. one.
    The gear pump comprises a housing 1, in which two gears which are in engagement with each other are placed, fluid gears 2 and 3i each of which are mounted on its shaft and 5, which are equipped with at least one sliding annular seal 6 located in the annular cavity 7, formed by the end surface 8 of the annular protrusion 9 of the inner sleeve 10 of the bearing 11, the end surface 12 of the fixed ring 13, the radial surface 1A of the annular protrusion 9 and the surface 15 of one of shafts k or 5 and made in the form of two shaped rings 16 and 17 mounted concentrically to each other, with the shaped rings 16 and 17 pressed to the end surface 8 of the annular protrusion 9 by springs 18, and the sealing rings 19 and 20 are mounted on the outer surface 21 of the outer shaped rings 17 and on the inner surface i of surface 22 of the inner shaped ring 16. In addition, each inner sleeve 10 of the bearing 11 is fixed on the shaft 4 and 5 from axial displacement by tension nuts 23 and a clamping cap 2. In addition, it is annular. cavity 25 between fa the carotid rings 16 and 17 are connected to the channel 26 for supplying sealing fluid. The gear pump operates as follows. When the shaft C rotates, gears 2 and 3 begin to rotate together with it, ensuring the process of suction and pumping of working fluid. With this, the bearings 11 are completely separated from the working space by a sliding annular seal, the shaped rings 16 and 17 of which, made of a material having high antifriction and anti-corrosion properties, rotate together with the annular protrusion 9 of the inner sleeve 10 of the bearing 11 and are preloaded by springs 18 to the end surface of the fixed ring 13, and the sealing rings 19 and 20, made of a material with high elasticity and corrosion resistance, seal between the fixed surfaces of co-rotating shafts and S, an annular protrusion 9 of the inner sleeve 10 of the bearing 11 and a sliding annular seal.
    权利要求:
    Claims (2)
    [1]
    In addition, in order to increase the reliability of the seal, a sealing fluid is supplied to the annular cavity 25 between the shaped rings 16 and 17 when the pump is operated through the supply channel 26, this completely eliminates the leakage of the working fluid from the working space 6. The technical and economic effect consists in increasing the service life pump by increasing the reliability of operation of the sliding ring seal. Claims 1. A gear pump comprising a housing in which two gears which are in engagement with each other are placed {Feed gears, each of which is mounted on its shaft. having at least one limiting working space, a sliding annular seal with two sealing rings located between the end surfaces of the inner sleeve of the shaft bearing and the stationary ring, "(strongly connected to the pump casing, characterized in that pumping highly viscous and corrosive fluids, the bearing inner sleeve is provided with an annular lip, and the sliding annular seal is made in the form of two spring-loaded relatively non rolling rings shaped rings mounted concentrically to each other, lying in the same radial plane and placed in an annular cavity formed by the radial and end surfaces of the shaft, the annular protrusion of the inner bearing bush and the stationary ring, and the sealing rings are located on the outer surface of the outer shaped ring and on the inner surface of the inner shaped ring and are mated respectively with the inner radial surface of the annular
    5912056 €
    the protrusion and the surface of the shaft, and the col-on shaft from the axial movement of the stinging cavity between the shaped ring nuts and the clamping cap, is connected to the channel for supplying sealing fluid. Sources of information
    [2]
    2. The pump pop-iotlichayu-5printye into account during the examination of the u and with the fact that each internal-1. USSR author's certificate
    n bearing bushing fixed 18b293 Cl. F About With 1/0, 196.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU912056A3|1982-03-07|Gaer pump
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    US3506276A|1970-04-14|Rotary seal,especially for oil pumps
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    US2625883A|1953-01-20|Centrifugal pump drive and seal means
    US3632240A|1972-01-04|Wear-reducing arrangement for hydraulic gear apparatus
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    JP5225675B2|2013-07-03|Mechanical seal device
    US807981A|1905-12-19|Shaft-packing.
    US1097074A|1914-05-19|Packing.
    US2894770A|1959-07-14|Rotary mechanical seal
    US2355390A|1944-08-08|Bearing
    US4185949A|1980-01-29|Screw compressor with bearing unloading means
    US5666012A|1997-09-09|Rotating shaft seal
    US10202967B2|2019-02-12|High-pressure rotating sealing coupling with continuous expandable ring
    US3070377A|1962-12-25|Sealing arrangement between relatively rotating parts in hydraulic and pneumatic motors, internal combustion engines and the like
    US3836216A|1974-09-17|Pressure balanced seal assembly
    US4363491A|1982-12-14|Shaft seal assembly
    US1871661A|1932-08-16|Sealing and thrust device
    JP2007211741A|2007-08-23|Shaft seal device of pump
    US1902960A|1933-03-28|Packing gland
    US2114489A|1938-04-19|Shaft sealing device
    同族专利:
    公开号 | 公开日
    US4268232A|1981-05-19|
    JPS5862190U|1983-04-26|
    FR2422052A1|1979-11-02|
    IT1112428B|1986-01-13|
    GB2018901A|1979-10-24|
    CH626950A5|1981-12-15|
    GB2018901B|1982-07-28|
    FR2422052B1|1983-11-18|
    JPS54137104A|1979-10-24|
    IT7921541D0|1979-04-03|
    DE2825616C2|1986-03-13|
    DE2825616A1|1979-10-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1362621A|1920-12-21|hawley |
    AT43035B|1908-11-02|1910-07-11|Robert James White|Sealing device for pumps or blowers with rotating pistons that mesh like a gear.|
    US1478417A|1922-11-27|1923-12-25|Prospect Mfg Company|Pump|
    GB309791A|1928-07-06|1929-04-18|Bernhard Bischof|An oil circulating system for rotary compressors|
    US2381615A|1937-11-08|1945-08-07|Us Electrical Motors Inc|Submersible structure|
    US2555492A|1947-10-23|1951-06-05|Ingersoll Rand Co|Pressure fluid seal|
    US2577292A|1948-01-02|1951-12-04|Phillips Petroleum Co|Shaft seal mechanism|
    DE866488C|1949-06-30|1953-02-09|Heinrich Scholler Dr Ing|Process for the production of fertilizers|
    US2679412A|1950-03-24|1954-05-25|Read Standard Corp|Seal|
    US3093380A|1954-10-14|1963-06-11|Macks Elmer Fred|Sealing member and method|
    DE959153C|1955-06-28|1957-02-28|Klein Schanzlin & Becker Ag|Stuffing box gland for seals on pumps or the like.|
    US2996015A|1959-10-21|1961-08-15|Thompson Ramo Wooldridge Inc|Pressure loaded pump|
    US3112867A|1961-03-29|1963-12-03|Wade Engineering Ltd|Blowers and motors with cooperating rotors|
    US3191545A|1962-01-22|1965-06-29|Waukesha Foundry Co|Aseptic joint seal|
    FR1330063A|1962-07-31|1963-06-14|Voith Gmbh J M|Double-acting compensated feed-through seal|
    GB980810A|1963-01-28|1965-01-20|Dowty Fuel Syst Ltd|Apparatus including a shaft rotatably mounted in a housing and sealing means therefor|
    FR2016621A1|1968-08-30|1970-05-08|Goeppner Kaiserslautern Eisen|
    US3526470A|1968-09-11|1970-09-01|St Regis Paper Co|Circulating pumps|
    JPS477550U|1971-02-22|1972-09-27|
    FR2231271A5|1973-05-23|1974-12-20|Gueytron Jean Claude|Shaft seal assembly with rubbing rings - barrier fluid is fed between parts of one ring and has elastic seats|
    SE7605256L|1976-05-10|1977-11-11|Stenberg Flygt Ab|WAREHOUSE|EP0070335A1|1981-07-17|1983-01-26|Gits Bros. Mfg. Co.|Pressure compensated shaft seal|
    DE3206080A1|1982-02-17|1983-09-08|EG u. G. Euroseals GmbH i. G., 1000 Berlin|OUTBOARD STEVE PIPE SEAL FOR THE OIL LUBRICATED SHAFT BEARING OF SHIPS|
    CH654879A5|1982-03-12|1986-03-14|Maag Zahnraeder & Maschinen Ag|GEAR MACHINE, ESPECIALLY GEAR PUMP FOR SOLUTIONS OR MELTING OF POLYMERS.|
    US4648479A|1983-09-30|1987-03-10|Exxon Production Research Co.|Multiple-port, multiple-chamber, tuned air-powered subsea seismic source|
    GB2202005B|1987-03-12|1990-11-07|Ssp Pumps|Pump|
    US4900039A|1988-07-27|1990-02-13|The Pullman Company|Twin face seal|
    US5501471A|1992-06-11|1996-03-26|Nippon Pillar Packing Co., Ltd.|Mechanical seal with blade-like sealing end|
    US5544897A|1993-08-19|1996-08-13|A. W. Chesterton Co.|Cartridge seal having a high contact pressure seal and means for intersleeve adjustment including quench fluid delivery|
    US5553867A|1995-04-21|1996-09-10|Environamics Corporation|Triple cartridge seal having one inboard and two concentric seals for chemical processing pump|
    US5820129A|1996-07-11|1998-10-13|Power Packing Co., Inc.|Mechanical split double seals|
    JP5554321B2|2008-04-09|2014-07-23|ネステクソシエテアノニム|Gear pump and method for using gear pump|
    DE102009058341A1|2009-12-15|2011-06-16|Voith Patent Gmbh|Hydrodynamic machine, in particular hydrodynamic retarder|
    US9617994B2|2014-04-18|2017-04-11|Delaware Capital Formation, Inc.|Pump with mechanical seal assembly|
    US11060559B2|2018-06-11|2021-07-13|Eaton Intelligent Power Limited|Bi-metallic journal bearing with additive manufactured sleeve|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH375778A|CH626950A5|1978-04-07|1978-04-07|
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