PROPELLER SHAFT
    3.
    发明公开
    PROPELLER SHAFT 审中-公开

    公开(公告)号:US20240229936A9

    公开(公告)日:2024-07-11

    申请号:US18277945

    申请日:2021-12-16

    IPC分类号: F16J15/52 F16C3/02 F16C33/76

    摘要: A water-impermeable cover includes an opening part extending toward an opening part of a holding ring of a stub shaft of a propeller shaft, and is disposed to face the opening part of the holding ring. The water-impermeable cover is fixed at a position to face the opening part of the holding ring of the stub shaft, and the opening part of the water-impermeable cover extends to approach the opening part of the holding ring: therefore, even if muddy water etc. scatters obliquely toward the opening part of the holding ring, the risk of muddy water etc. entering the opening part of the holding ring is reduced, and as a result, also the risk of muddy water etc. entering an interior of a center bearing is reduced.

    Torque transmission shaft
    5.
    发明授权

    公开(公告)号:US11982319B2

    公开(公告)日:2024-05-14

    申请号:US17296017

    申请日:2019-11-18

    申请人: NSK Ltd.

    摘要: The torque transmission shaft has a shaft having a hollow tubular shape and a clamp. The shaft has a connecting portion integral with the shaft at one axial end portion, a slit extending in the axial direction in a portion on the other axial end side and opens on the other side in the axial direction, and a female serration on the inner circumferential surface of the other axial end portion. The clamp is separate from the shaft and has a non-continuous portion at one location in the circumferential direction, a pair of flange portions on both sides of the non-continuous portion, and a connecting portion connecting the pair of flange portions in the circumferential direction. The clamp is externally fitted and fixed to the other axial end portion of the shaft and reduces the diameter of the other axial end side portion of the shaft.

    Keyed coupling system for torque transmission

    公开(公告)号:US11927223B2

    公开(公告)日:2024-03-12

    申请号:US17186210

    申请日:2021-02-26

    IPC分类号: F16D1/08 F16C3/02

    摘要: A Woodruff key system includes a rotatable shaft having a keyseat defined therein. The keyseat includes a pocket engaged with the Woodruff key, a first keyseat extension extending in a first axial direction from the Woodruff key relative to the shaft, and a second keyseat extension extending in a second axial direction opposite the first axial direction from the Woodruff key relative to the shaft. Respective depths of the first and second keyseat extensions are less than a depth of the pocket of the keyseat.

    Composite end connections
    9.
    发明授权

    公开(公告)号:US11905991B2

    公开(公告)日:2024-02-20

    申请号:US17161943

    申请日:2021-01-29

    IPC分类号: F16C3/02

    CPC分类号: F16C3/026

    摘要: A fibre-reinforced polymer composite shaft for transmitting loads along a central axis is provided. The composite shaft comprises a first interface surface extending along the central axis and comprising at least one helical groove and/or a plurality of circumferential grooves for engaging with at least one corresponding helical ridge and/or a plurality of corresponding circumferential ridges of a second interface surface of an end fitting. The at least one helical groove and/or the plurality of circumferential grooves comprises at least one flank with a flank angle of between 32° and 51°. In such an assembly, a preload structure is arranged to provide a radial biasing force to bias the first interference surface against the second interference surface.

    Tubular body used for power transmission shaft and power transmission shaft

    公开(公告)号:US11885375B2

    公开(公告)日:2024-01-30

    申请号:US17194991

    申请日:2021-03-08

    IPC分类号: F16C3/02

    CPC分类号: F16C3/026

    摘要: A tubular body of a power transmission shaft made of fiber-reinforced plastic is provided with a cylindrical main body portion, and a second connection portion continuous with an end portion of the main body portion and to which a stab shaft is joined. The main body portion is formed with a weak portion which fails when a load input in the direction of an axial line exceeds a predetermined value. A linear rupture portion is formed on an outer peripheral surface of the weak portion. In the present configuration, cost reduction and weight reduction of the tubular body are made possible, and the tubular body fails infallibly when a predetermined load is input to the tubular body in the direction of the axial line.