US 11,110,509 B2Granted

Flexible friction driving device

AssigneesShanghai Anzi Industrial Co., Ltd., Shanghai Well-Done Machinery Manufacturing Co., Ltd.

InventorMingxiang Wu

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Abstract

A flexible friction driving device has a driving gear, a driven gear, a hexagonal sleeve, a damping ring, an elastic ring and two bearing seats, wherein the driving gear is mounted below the driven gear and engaged with the driven gear; the hexagonal sleeve is disposed between the two bearing seats, and the damping ring and the driven gear are successively sheathed on the hexagonal sleeve; a cap and the elastic ring are placed in an opening at one end of the driven gear; the elastic ring compresses the damping ring onto a cylindrical outer surface of the hexagonal sleeve; power from a motor is transferred to the driven gear by the driving gear; and, the power is flexibly transferred to the hexagonal sleeve by the friction of the inner holes of the damping ring and the driven gear against the cylindrical outer surface of the hexagonal sleeve.

Claims5

Dependent claims

A frictional driving device, comprising:

a first bearing seat;
a second bearing seat spaced from the first bearing seat, leaving a gap therebetween;
a sleeve having a first sleeve section and a second sleeve section, the first sleeve section having a cylindrical outer surface, the second sleeve section having a hexagonal sleeve surface;
a driven gear located in the gap between the first bearing seat and the second bearing seat, the driven gear having a first gear end and a second gear end, the first gear end having circular opening, the second gear end having an inner hexagonal opening dimensioned to receive the hexagonal sleeve surface of the sleeve;
a damping ring located in the circular opening of the driven gear, dimensioned to receive part of the cylindrical outer surface of the sleeve;
an elastic ring located in the circular opening of the driven gear, dimensioned to receive the damping ring;
a cap located in the circular opening of the driven gear, configured for pressing the elastic ring against the circular opening of the driven gear;
and a driving gear positioned in relationship with and engaged with the driven gear.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/585,151Filed 27 Sep 2019
Priority: CN 201811163200.330 Sep 2018
Published: US 2020/0101520 A12 Apr 2020
Granted: 7 Sep 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

B21J 15/26
Drives for riveting machines; Transmission means therefor: operated by rotary drive, e.g. by electric motor
F16H 1/06
Involving only two intermeshing members: with parallel axes
F16H 35/10
Gearings or mechanisms with other special functional features: arrangements or devices for absorbing overload or preventing damage by overload
F16H 55/32
Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms: friction members

Family

US 2020/0101520 A1Pre-grant publication · published 2 Apr 2020
US 11,110,509 B2This patent

From the US filing history. Foreign family members aren’t listed.

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