US 12,092,195 B2Granted

Vehicle differential locking device

OwnerRoman Tobikov, Denis Shubainventors

Life of this patent

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Abstract

The claimed invention relates to the automotive industry, namely: to devices for locking differentials of vehicle driving axles with forced locking. The technical result is creating a differential locking mechanism facilitating a significant improvement of performance indicators in differentials using the claimed locking mechanism and the range expansion of such a differential use. The technical result is achieved by the locking device integrated into the differential, comprising the differential housing, semi-axle gears located inside the housing, and being in either “Locked” or “Unlocked” positions, consists of: locking elements shaped as a rotation body; through locking holes made in the differential housing; the recesses of semi-axle gear arranged on the semi-axle gear surface; ring lock-up clutch on the differential housing around the locking holes with locking elements, on the inner surface of which there are lock-up clutch grooves enlarging the contact spot area: “Lock-up clutch—locking element”.

Claims4

Dependent claims

A vehicle differential locking device integrated into a differential, the differential including a differential housing having a rotation axis and two semi-axle gears located inside the differential housing, the vehicle differential locking device being in either a “Locked” position or an “Unlocked” position, and the vehicle differential locking device comprising:

locking elements each shaped as a rotation body;
through locking holes made in the differential housing, each of the through locking holes having an axis, the locking elements being arranged in the through locking holes so as to freely move along the axes of the through locking holes;
recesses made on an outer surface of one of the two semi-axle gears each of the recesses being shaped to receive a part of one of the locking elements;
a ring lock-up clutch mounted on the differential housing around the locking holes with the locking elements, the ring lock-up clutch having an inner surface provided with lock-up clutch grooves;
wherein the ring lock-up clutch is connected to a drive, and the ring lock-up clutch is configured to rotate around the rotation axis of the differential housing in a clockwise direction or a counterclockwise direction when the vehicle differential locking device is moved to the “Locked” position.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/773,927Filed 20 Sep 2021
Priority: RU 202110725219 Mar 2021
Published: US 2023/0220911 A113 Jul 2023
Granted: 17 Sep 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

F16H 48/24
Arrangements for suppressing or influencing the differential action, e.g. locking devices: using positive clutches or brakes
F16D 11/12
Actuated by moving a non-rotating part axially: with clutching members movable otherwise than only axially
F16D 23/14
Mechanical clutch-actuating mechanisms arranged outside the clutch as such: clutch-actuating sleeves or bearings; Actuating members directly…
F16D 28/00
Electrically-actuated clutches