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Title:
WORM COMPRESSION AND SUPPORT MECHANISM FOR ELECTRIC POWER STEERING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/041155
Kind Code:
A1
Abstract:
A worm compression and support mechanism for an electric power steering system, comprising a housing (1), wherein a worm (5) and a worm wheel (6) are provided inside the housing (1); an upper end of the worm wheel (6) is in fit connection with the worm (5); one end of the worm (5) is sleeved with a big-end bearing (3), and the other end thereof is sleeved with a small-end bearing (7); a compression assembly is provided on an outer edge side of the small-end bearing (7); the compression assembly closely abuts against an outer ring of the small-end bearing (7); a support assembly is provided on an upper side of the small-end bearing (7); the support assembly is located above the compression assembly; and a lower surface of the support assembly closely abuts against the compression assembly. A pre-compression force is supplied by the compression assembly, a support assembly is arranged above the compression assembly, and the lower surface of the support assembly presses against the compression assembly to provide a limiting effect on the compression assembly in a vertical direction, and the compression assembly provides damping and hard limiting at the top and a side of the worm (5) to support and limit the oscillation of the worm (5) and to absorb the impact of the worm (5).

Inventors:
HU SHAOXIONG (CN)
YANG JINGYUAN (CN)
DONG HANG (CN)
LI SHAN (CN)
Application Number:
PCT/CN2023/102276
Publication Date:
February 29, 2024
Filing Date:
June 26, 2023
Export Citation:
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Assignee:
BOSCH HUAYU STEERING SYSTEMS CO LTD (CN)
International Classes:
B62D3/04; F16H1/16; F16H57/12
Foreign References:
CN207111910U2018-03-16
CN207683593U2018-08-03
CN216045224U2022-03-15
CN209521756U2019-10-22
JP2014101071A2014-06-05
JP2011157034A2011-08-18
CN211918817U2020-11-13
CN212890573U2021-04-06
CN210919979U2020-07-03
CN216789124U2022-06-21
CN210000393U2020-01-31
CN102398628A2012-04-04
Attorney, Agent or Firm:
SHANGHAI BESHINING LAW OFFICE (CN)
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