公开(公告)号：US20220185400A1

公开(公告)日：2022-06-16

申请号：US17122573

申请日：2020-12-15

Applicant: Caterpillar Inc.

Inventor： Eric B. Weisbruch ,  Jeffrey Paul Nash ,  Donovan Stuart Clarke ,  Kevin Lee Steiner

IPC: B62D55/21

Abstract: An articulated chain assembly includes standard links, a master link, and pins pivotably coupling together the standard links and master link. The master link includes a first half link and a second half link, and bolt holes extending through the first half link and the second half link. A first bolt is within a first one of the bolt holes and has a necked-down bolt shank defining a lesser necked-down axial length. A second bolt is within a second one of the bolt holes and includes a necked-down bolt shank defining a greater necked-down axial length. The first bolt and second bolt may have unequal full axial lengths.

公开(公告)号：US12037064B2

公开(公告)日：2024-07-16

申请号：US17122573

申请日：2020-12-15

Applicant: Caterpillar Inc.

Inventor： Eric B. Weisbruch ,  Jeffrey Paul Nash ,  Donovan Stuart Clarke ,  Kevin Lee Steiner

IPC: B62D55/21

CPC classification number: B62D55/213

Abstract: An articulated chain assembly includes standard links, a master link, and pins pivotably coupling together the standard links and master link. The master link includes a first half link and a second half link, and bolt holes extending through the first half link and the second half link. A first bolt is within a first one of the bolt holes and has a necked-down bolt shank defining a lesser necked-down axial length. A second bolt is within a second one of the bolt holes and includes a necked-down bolt shank defining a greater necked-down axial length. The first bolt and second bolt may have unequal full axial lengths.

公开(公告)号：US20220194495A1

公开(公告)日：2022-06-23

申请号：US17128607

申请日：2020-12-21

Applicant: Caterpillar Inc.

Inventor： Kevin L. Steiner ,  Donovan Stuart Clarke ,  Robert Donald Bierman ,  Eric B. Weisbruch ,  Jason L. Sebright ,  Martin Tagore Joseph Xavier ,  Daniel I. Knobloch ,  Philip Steffen Ricketts

IPC: B62D55/14

Abstract: An idler assembly includes a cylindrical hub defining an axis of rotation, a radial direction, and a circumferential direction. A stepped circumferential surface of the cylindrical hub has a first radially inner face, and a radially outer cylindrical face. Mounting holes extend radially into the radially outer cylindrical face. A first idler segment is attached to the cylindrical hub, and includes an at least partially flat body having a first planar chain link contacting surface. The cylindrical hub has a first set of metallurgical properties that is different than the second set of metallurgical properties of the first idler segment.