DRILLING APPARATUS WITH ANTI-VIBRATION INERTIAL BODY
    32.
    发明公开
    DRILLING APPARATUS WITH ANTI-VIBRATION INERTIAL BODY 有权
    钻孔具有抗振动体惯性

    公开(公告)号:EP1689967A2

    公开(公告)日:2006-08-16

    申请号:EP04794764.3

    申请日:2004-10-13

    发明人: LEPPANEN, Jarmo

    IPC分类号: E21B19/08

    摘要: A blast-hole drilling rig includes a carriage, a mast disposed on the carriage, and a rotary head mounted on the mast for up-and-down movement. The rotary head includes: a housing forming an internal chamber, a hydraulically driven motor, and a rotation transmission mechanism disposed in the chamber. The rotation transmission mechanism includes a gear system having a high-speed power input section operably connected to the motor, and a low-speed power output section adapted for connection to a drill pipe. The rotation transmission mechanism includes an anti-vibrational inertial body forming part of the high-speed power input section for storing rotational energy to even-out rotary speed variations and resist the generation of vibrations during operation. The inertial body includes a downwardly open recess in which the motor casing extends, wherein the motor projects downwardly past a bottom wall of the housing.

    Flywheel with expansion-matched, self-balancing hub
    34.
    发明公开
    Flywheel with expansion-matched, self-balancing hub 失效
    用下面的扩张飞轮,自平衡轮毂

    公开(公告)号:EP0794352A3

    公开(公告)日:1999-03-31

    申请号:EP97103725.4

    申请日:1997-03-06

    IPC分类号: F16F15/315

    CPC分类号: F16F15/315 Y10T74/2132

    摘要: A flywheel hub (26) includes an annular hoop (28) and a pair of compliant diaphragms (30, 32) which are connected by the hoop (28). The diaphragms (30, 32) have apertures (34) to receive a flywheel shaft (22) and the hoop (28) is sized to receive an annular rim (24). The diaphragms (30, 32) achieve their compliance principally with a serpentine, radial cross section. The hub (26) is preferably realized with fiber and matrix composites. Because the compliant hub (26) tends to match radial expansions of adjoining flywheel components, joint integrity between components is enhanced. In addition, the hub (26) permits the rim (24) to position its center of mass on the rotational axis (21) to reduce rim vibrations. Axial spacing (66) of the diaphragms (30, 32) provides moment stiffness to limit and control the rim deflection caused by, for example, gyroscopic precession forces.

    Flywheel with expansion-matched, self-balancing hub
    35.
    发明公开
    Flywheel with expansion-matched, self-balancing hub 失效
    Schwungrad mit expansionsfolgender,selbstbalancierender Nabe

    公开(公告)号:EP0794352A2

    公开(公告)日:1997-09-10

    申请号:EP97103725.4

    申请日:1997-03-06

    IPC分类号: F16F15/315

    CPC分类号: F16F15/315 Y10T74/2132

    摘要: A flywheel hub (26) includes an annular hoop (28) and a pair of compliant diaphragms (30, 32) which are connected by the hoop (28). The diaphragms (30, 32) have apertures (34) to receive a flywheel shaft (22) and the hoop (28) is sized to receive an annular rim (24). The diaphragms (30, 32) achieve their compliance principally with a serpentine, radial cross section. The hub (26) is preferably realized with fiber and matrix composites. Because the compliant hub (26) tends to match radial expansions of adjoining flywheel components, joint integrity between components is enhanced. In addition, the hub (26) permits the rim (24) to position its center of mass on the rotational axis (21) to reduce rim vibrations. Axial spacing (66) of the diaphragms (30, 32) provides moment stiffness to limit and control the rim deflection caused by, for example, gyroscopic precession forces.

    摘要翻译: 飞轮轮毂(26)包括通过箍(28)连接的环形箍(28)和一对柔性隔膜(30,32)。 隔膜(30,32)具有用于容纳飞轮轴(22)的孔(34),并且箍(28)的尺寸被设计成容纳环形边缘(24)。 隔膜(30,32)主要以蛇形,径向横截面为主。 毂(26)优选地用纤维和基质复合材料实现。 因为顺应性轮毂(26)倾向于匹配相邻飞轮部件的径向扩展,所以增强了部件之间的连接完整性。 此外,毂(26)允许轮辋(24)将其质心定位在旋转轴线(21)上以减少轮辋振动。 隔膜(30,32)的轴向间隔(66)提供力矩刚度以限制和控制由例如陀螺进动力引起的边缘偏转。

    A FLY WHEEL ARRANGEMENT
    36.
    发明公开
    A FLY WHEEL ARRANGEMENT 失效
    DEVICE飞轮。

    公开(公告)号:EP0642635A1

    公开(公告)日:1995-03-15

    申请号:EP93912650.0

    申请日:1993-05-11

    IPC分类号: F16C15 F16F1 F16F15

    摘要: A fly wheel arrangement comprising a rotatable axle (1), a ring (4) essentially forming the rotating mass of the fly wheel and a connecting means (5) made from fibre-reinforced connecting the ring (4) with the axle (1) or with a part rotating herewith. The connecting means (5) is connected to the ring (4) at its outer end portion and to the axle (1) or a part connected hereto at its inner end portion. The connecting means (5) has essentially the shape of a cylinder or a conical shell.

    Method for the production of fibre reinforced articles
    38.
    发明公开
    Method for the production of fibre reinforced articles 失效
    用于生产纤维增强制品的方法。

    公开(公告)号:EP0089809A1

    公开(公告)日:1983-09-28

    申请号:EP83301478.0

    申请日:1983-03-17

    摘要: A method for the production by resin injection moulding of fibre reinforced articles from fibrous material bonded in a curable matrix material which articles comprise two or more spokes (2, 3, 4) extending from a hub portion (1), each spoke (2, 3, 4) being in the form of a loop is characterised in that the fibrous material is arranged such that at least as many rovings (13, 14, 15 or 22, 23, 24) of the fibrous material as there are spokes (2,3,4) extend in continuous paths from the hub portion (1) around each of the spokes, each of the rovings being overlaid for at least part of its length by each of the other rovings. The method is suitable for the production of intricately shaped articles which are to be highly stressed for example by being subjected to high rotational speeds.

    BALANCER SHAFT DEVICE
    39.
    发明授权

    公开(公告)号:EP2700841B1

    公开(公告)日:2018-08-15

    申请号:EP12774442.3

    申请日:2012-04-19

    申请人: JTEKT Corporation

    摘要: A rolling bearing of a balancer shaft device is positioned on an imaginary circle concentric with an axis of a shaft portion of a balancer shaft as viewed in a radial cross-section, and includes a cylindrical portion which covers the shaft portion. An outer circumferential surface of the cylindrical portion defines an inner ring raceway surface of an inner ring member on which a rolling element of the rolling bearing rolls. A part of the shaft portion of the balancer shaft, at a position on which the rolling bearing is disposed, has a cutout formed at a portion which does not contribute to offsetting of rotational vibration of a crankshaft.