公开(公告)号：US11518455B2

公开(公告)日：2022-12-06

申请号：US16539467

申请日：2019-08-13

Applicant: Caterpillar Inc.

Inventor： Zachary T. Donlan ,  Roger L. Recker

IPC: B62D55/15 ,  B62D55/088 ,  B62D55/092 ,  B62D55/10 ,  B62D55/06

Abstract: A rotating member attachment assembly includes a shaft including a cylindrical configuration defining a cylindrical axis, a first axial end and a second axial end along the cylindrical axis; a first coupler defining a first hole that defines a first hole axis and that is configured to receive the shaft, the first coupler further including a first inner axial end, and a first outer axial end; a first shaft bushing disposed on the shaft at the first axial end; and a first coupler bushing disposed in the first hole of the first coupler.

公开(公告)号：US20220194496A1

公开(公告)日：2022-06-23

申请号：US17128504

申请日：2020-12-21

Applicant: Caterpillar Inc.

Inventor： Roger Lee Recker ,  Mircea Dumitru ,  Zachary T. Donlan

IPC: B62D55/15

Abstract: A roller assembly for a ground-engaging track system includes a roller forming a shaft bore, and a roller shaft within the shaft bore and having a circumferential ramp surface. A roller retention system for the roller assembly includes a roller retention collar with an outer peripheral surface, and an inner peripheral surface that may include a wedge surface structured to friction fit the retention collar, within a collar bore in the roller, upon the circumferential ramp surface to limit axial displacement of the roller upon the roller shaft. The roller assembly may include two roller retention collars supporting the roller against axial displacement without use of thrust washers or the like, and fixing the roller and roller shaft to rotate together relative to a track roller frame.

公开(公告)号：US20210046983A1

公开(公告)日：2021-02-18

申请号：US16539467

申请日：2019-08-13

Applicant: Caterpillar Inc.

Inventor： Zachary T. Donlan ,  Roger L. Recker

IPC: B62D55/15 ,  B62D55/088 ,  B62D55/10 ,  B62D55/092

Abstract: A rotating member attachment assembly includes a shaft including a cylindrical configuration defining a cylindrical axis, a first axial end and a second axial end along the cylindrical axis; a first coupler defining a first hole that defines a first hole axis and that is configured to receive the shaft, the first coupler further including a first inner axial end, and a first outer axial end; a first shaft bushing disposed on the shaft at the first axial end; and a first coupler bushing disposed in the first hole of the first coupler.

公开(公告)号：US11312434B2

公开(公告)日：2022-04-26

申请号：US16539278

申请日：2019-08-13

Applicant: Caterpillar Inc.

Inventor： Zachary T. Donlan ,  Mircea Dumitru

IPC: B62D55/15 ,  B62D55/32

Abstract: A replacement kit for a rotating member attachment assembly includes a first thrust washer defining a first thrust washer diameter and a first thrust washer axial thickness, and a first end cap defining a first end cap axial thickness and including a first end cap circumferential surface defining a first end cap diameter that is greater than the first thrust washer diameter. The first end cap circumferential surface includes external threads.

公开(公告)号：US20210046982A1

公开(公告)日：2021-02-18

申请号：US16539351

申请日：2019-08-13

Applicant: Caterpillar Inc.

Inventor： Zachary T. Donlan ,  Benjamin I. Jones ,  Mircea Dumitru

IPC: B62D55/15 ,  B62D55/32 ,  B62D55/10

Abstract: A replacement kit includes a first coupler that includes a first inner axial end, a first outer axial end, and a first coupler attachment portion including a first forked oblong structure that defines a first minor axis with a first minor axis length, and a first major axis with a first major axis length that is greater than the first minor axis length, and including a first prong, a second prong disposed axially away from the first prong, and defining a first predetermined axial distance, and a first cam surface disposed between the first prong and the second prong.

公开(公告)号：US12049265B2

公开(公告)日：2024-07-30

申请号：US17128504

申请日：2020-12-21

Applicant: Caterpillar Inc.

Inventor： Roger Lee Recker ,  Mircea Dumitru ,  Zachary T. Donlan

IPC: B62D55/15

CPC classification number: B62D55/15

Abstract: A roller assembly for a ground-engaging track system includes a roller forming a shaft bore, and a roller shaft within the shaft bore and having a circumferential ramp surface. A roller retention system for the roller assembly includes a roller retention collar with an outer peripheral surface, and an inner peripheral surface that may include a wedge surface structured to friction fit the retention collar, within a collar bore in the roller, upon the circumferential ramp surface to limit axial displacement of the roller upon the roller shaft. The roller assembly may include two roller retention collars supporting the roller against axial displacement without use of thrust washers or the like, and fixing the roller and roller shaft to rotate together relative to a track roller frame.

公开(公告)号：US11530007B2

公开(公告)日：2022-12-20

申请号：US16539351

申请日：2019-08-13

Applicant: Caterpillar Inc.

Inventor： Zachary T. Donlan ,  Benjamin I. Jones ,  Mircea Dumitru

IPC: B62D55/15 ,  B62D55/10 ,  B62D55/32 ,  B62D55/14

Abstract: A replacement kit includes a first coupler that includes a first inner axial end, a first outer axial end, and a first coupler attachment portion including a first forked oblong structure that defines a first minor axis with a first minor axis length, and a first major axis with a first major axis length that is greater than the first minor axis length, and including a first prong, a second prong disposed axially away from the first prong, and defining a first predetermined axial distance, and a first cam surface disposed between the first prong and the second prong.

公开(公告)号：US20210046981A1

公开(公告)日：2021-02-18

申请号：US16539278

申请日：2019-08-13

Applicant: Caterpillar Inc.

Inventor： Zachary T. Donlan ,  Mircea Dumitru

IPC: B62D55/15 ,  B62D55/32

Abstract: A replacement kit for a rotating member attachment assembly includes a first thrust washer defining a first thrust washer diameter and a first thrust washer axial thickness, and a first end cap defining a first end cap axial thickness and including a first end cap circumferential surface defining a first end cap diameter that is greater than the first thrust washer diameter. The first end cap circumferential surface includes external threads.