Blade carrying means
    71.
    发明授权
    Blade carrying means 失效
    刀片携带方式

    公开(公告)号:US4863352A

    公开(公告)日:1989-09-05

    申请号:US667663

    申请日:1984-11-02

    CPC classification number: F16C19/56 B64C11/06 F01D5/02 B64D2027/026 Y02T50/671

    Abstract: Blade carrying means for variable pitch propulsor blades of a gas turbine engine are disclosed. The blade carrying means comprise dual, axially positioned rings and a plurality of generally cylindrical bearing journals supported between the rings. Each of the journals has a radially outer and inner edge and is adapted to support a single propulsor blade. The blade carrying means also comprise stiffening means, such as a bulkhead attached to the inner edge, for preventing distortion of the journal inner edge.

    Abstract translation: 公开了一种用于燃气涡轮发动机的变桨距推进叶片的叶片承载装置。 刀片承载装置包括双轴向定位的环和支撑在环之间的多个大致圆柱形的轴承轴颈。 每个轴颈具有径向外部和内部边缘,并且适于支撑单个推进器叶片。 叶片承载装置还包括加强装置,例如附接到内边缘的隔板,用于防止轴颈内边缘的变形。

    Compressible pressure compensator within closed lubricant volume of an
earth boring apparatus
    72.
    发明授权
    Compressible pressure compensator within closed lubricant volume of an earth boring apparatus 失效
    在地面钻孔装置的封闭润滑剂体积内的可压缩压力补偿器

    公开(公告)号:US4509607A

    公开(公告)日:1985-04-09

    申请号:US527704

    申请日:1983-08-26

    Abstract: A compressible pressure compensating member is disposed within a sealed lubricant volume enclosing a bearing and seal system of an earth boring apparatus. Lubricant is maintained within the volume by metal face seals so that both the bearing and the seal structure are lubricated thereby. As the lubricant expands, due to thermal expansion under use, the increased pressure is accommodated by compression of the compressible member so that no lubricant is expelled through the seals. When the lubricant cools and contracts, the compensator expands to maintain the lubricant volume at the initially filled level.

    Abstract translation: 可压缩的压力补偿构件设置在密封的润滑剂体积中,该密封润滑剂容积包围地球钻孔装置的轴承和密封系统。 通过金属表面密封将润滑剂保持在体积内,从而使轴承和密封结构都被润滑。 随着润滑剂膨胀,由于使用时的热膨胀,通过压缩可压缩构件来承受增加的压力,使得没有润滑剂通过密封件排出。 当润滑剂冷却和收缩时,补偿器膨胀以将润滑剂体积保持在初始填充水平。

    Rock boring cutter with thread-on replaceable cutting element
    74.
    发明授权
    Rock boring cutter with thread-on replaceable cutting element 失效
    带钻孔可更换切割元件的钻孔镗刀

    公开(公告)号:US4040493A

    公开(公告)日:1977-08-09

    申请号:US685838

    申请日:1976-05-13

    Abstract: A cutter with a replaceable cutting element is adapted to be mounted upon the rotary head of an earth boring machine or upon the body of an earth boring bit. The cutter is used in conjunction with an earth boring machine that functions to form a borehole or tunnel in the formation being bored. The cutter may operate to fracture rock between a proximate pair of kerfs in a manner to cause fragments of the formation to be separated from the formation being bored or may crush and disintegrate the formation. At least one annular cutting element is mounted on the periphery of the cutter body for contacting the formations. The cutter body includes an external annular threaded surface between the ends of the cutter body. The cutting element includes a threaded inner surface that mates with the threads on the cutter body. A locking shoulder on the cutter body is in contact with a locking shoulder on the cutting element.

    Abstract translation: 具有可更换切割元件的切割器适于安装在镗孔机的旋转头上或地面钻孔的主体上。 切割机与钻孔机一起使用,该钻孔机能够在钻孔中形成钻孔或隧道。 切割器可以以使得地层的碎片与地层分离的方式在接近的一对切口之间破碎岩石,或者可能破碎和分解地层。 至少一个环形切割元件安装在切割器主体的周边上用于接触地层。 切割器主体包括在刀体的端部之间的外部环形螺纹表面。 切割元件包括与切割器主体上的螺纹配合的螺纹内表面。 刀体上的锁定肩部与切割元件上的锁定肩部接触。

    Squeeze film bearing support movement limiting apparatus
    75.
    发明授权
    Squeeze film bearing support movement limiting apparatus 失效
    SQUEEZE胶片轴承支持运动限制装置

    公开(公告)号:US3784267A

    公开(公告)日:1974-01-08

    申请号:US3784267D

    申请日:1972-12-15

    Inventor: DAVIS L

    Abstract: A shaft bearing assembly uses ''''squeeze film action'''' to damp vibrations in an annular bearing support member. To prevent the annular support member from rotating about its axis with the shaft but allow the freedom of movement in any radial direction necessary for the squeeze film action, a linking member has one end pivotally connected to the housing and the other pivotally connected to the annular support member near its outer edge. A thrust bearing between the housing and annular support member bears axial loads.

    Abstract translation: 轴承组件使用“挤压膜作用”来阻止环形轴承支撑构件中的振动。 为了防止环形支撑构件绕其轴线与轴旋转,但允许在挤压膜作用所需的任何径向方向上的移动自由度,连接构件具有可枢转地连接到壳体并且另一端枢转地连接到环形 支撑件靠近其外缘。 壳体和环形支撑构件之间的推力轴承承受轴向载荷。

    Axial piston hydraulic apparatus
    76.
    发明授权
    Axial piston hydraulic apparatus 失效
    轴向活塞式液压装置

    公开(公告)号:US3721161A

    公开(公告)日:1973-03-20

    申请号:US3721161D

    申请日:1970-12-24

    Applicant: VON ROLL AG

    Inventor: BOBST G

    Abstract: To decrease mechanical loading on the roller thrust bearings in hydraulic pressure fluid apparatus, a hydrostatic axial slide bearing is provided, having a rotating part with an axially directed face secured to the rotating elements of the apparatus; and a stator part, formed as an axially movable element, such as a piston, within a cylinder which has pressure fluid applied thereto from a pressure fluid tap of the apparatus, the piston being formed with an opening, preferably including a choke, through which pressure fluid is applied in the region between the piston and the axially facing surface of the rotor element, to provide a counterforce against the mechanical force exerted against the thrust bearing.

    Abstract translation: 为了降低液压流体装置中的滚子推力轴承的机械载荷,提供了一种静压轴向滑动轴承,其具有旋转部分,其具有固定到设备的旋转元件的轴向定向面; 以及定子部分,其在诸如活塞的轴向可移动元件之间形成,该气缸内具有从设备的压力流体分接器施加到其上的压力流体,活塞形成有优选包括扼流圈的开口,通过该开口 压力流体被施加在活塞和转子元件的面向轴向表面之间的区域中,以提供抵抗推力轴承施加的机械力的反作用力。

    COMBINED BALL BEARING, MAIN SPINDLE DEVICE, AND MACHINE TOOL

    公开(公告)号:US20180238384A1

    公开(公告)日:2018-08-23

    申请号:US15749931

    申请日:2016-08-03

    Applicant: NSK LTD.

    Abstract: A matched ball bearing includes four or more rows of angular ball bearings axially aligned, two or more rows of the angular ball bearings with contact angles in a same direction being arranged in a back-to-back combination. The respective angular ball bearings have same inner diameters, respectively. The respective angular ball bearings with contact angles in the same direction have same outer diameters, respectively. The respective angular ball bearings with contact angles in different directions have different outer diameters, respectively. With respect to at least the respective angular ball bearings having the larger outer diameters, the angular ball bearing positioned at an axially outboard side has a ball diameter and a contact angle greater than those of the angular ball bearing positioned at an axially inboard side.

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