公开(公告)号：US20240217598A1

公开(公告)日：2024-07-04

申请号：US17928925

申请日：2022-02-24

Applicant: SHANGHAI SANY HEAVY MACHINERY CO., LTD.

Inventor： Xiao WANG ,  Jinmei YAO

IPC: B62D55/084 ,  B62D55/092 ,  B62D55/30

CPC classification number: B62D55/084 ,  B62D55/092 ,  B62D55/30

Abstract: The present application relates to the technical field of construction machinery, in particular to an excavator lower part length regulating system and an excavator. The excavator lower part length regulating system includes: a lower part walking beam; a caterpillar track, provided around the lower part walking beam; and a regulating assembly, adapted to regulating the length of the lower part walking beam and the height of the caterpillar track along a longitudinal direction. The regulating assembly has an extension state in which the lower part walking beam is driven to be elongated and the caterpillar track is driven to descend along a longitudinal direction, and a contraction state in which the lower part walking beam is driven to be shortened and the caterpillar track is driven to ascend along the longitudinal direction. The present application provides the excavator lower part length regulating system, which regulates the length of the lower part walking beam and concomitantly regulates the height of the caterpillar track along the longitudinal direction by providing the regulating assembly, to realize an adaptive regulation of the caterpillar track with a constant perimeter, overcome the defect that the traditional excavator fails to regulate the ground pressure; and provide the excavator capable of regulating the ground pressure according to requirements.

公开(公告)号：US11873041B2

公开(公告)日：2024-01-16

申请号：US17215899

申请日：2021-03-29

Applicant: JOSEPH VOEGELE AG

Inventor： Bernhard Erdtmann

IPC: B62D55/24 ,  B62D55/15 ,  B62D55/092

CPC classification number: B62D55/242 ,  B62D55/15 ,  B62D55/092

Abstract: A rubber track, in particular for a road paver or a feeder vehicle, comprising at least one drive wheel and at least one guide wheel, which are placed on a carrier together with wheels arranged in pairs and a rubber track, wherein the wheels have rims, and wherein on a circumferential surface of the rims of the wheels a rubber lining is attached, wherein a guide cam is provided on an inner side of the rubber track, which guide cam is configured to penetrate into an intermediate space between two wheels located next to each other, wherein a contact surface of the wheels facing the guide cam has an insert detachably attached to the rims.

公开(公告)号：US11673620B2

公开(公告)日：2023-06-13

申请号：US17381148

申请日：2021-07-20

Applicant: AKTIEBOLAGET SKF

Inventor： Hans-Joachim vom Stein

IPC: B62D55/088 ,  B62D55/092 ,  F16J15/3208

CPC classification number: B62D55/0887 ,  B62D55/092 ,  F16J15/3208

Abstract: A seal assembly for sealing a lubricant space that is formed between a pin, a track shoe pressed-on onto one end of the pin, and a sleeve of a track. The sleeve is pushed onto the pin and is swivelable on the pin. The track further includes at least one second track shoe pressed onto one end of the sleeve. The seal assembly provides a first seal ring for sealing the lubricant space between the sleeve and the first track shoe, and an elastic ring for applying pressure to the first seal ring. The seal assembly further provides a second seal ring for sealing the lubricant space between the sleeve and the first track shoe and/or the pin.

公开(公告)号：US11618514B2

公开(公告)日：2023-04-04

申请号：US16337957

申请日：2017-11-30

Applicant: KOMATSU LTD.

Inventor： Minoru Katayama ,  Tomoyoshi Sho ,  Kenichi Hisamatsu

IPC: B62D55/088 ,  B62D55/21 ,  F16J15/3204 ,  B62D55/092

Abstract: A link assembly includes a first member, a second member opposing the first member and being rotatable around a rotating shaft, a seal housing formed between the first and second members, and a seal assembly disposed inside the seal housing. The seal assembly has a seal ring and a load ring. The seal ring has a support ring and a lip ring. The seal ring is disposed between the first member and the load ring. The load ring is disposed between the seal ring and the second member. The lip ring abuts the load ring. The lip ring has a first lip part that abuts the first member and protrudes in an axial direction of the rotating shaft, and a second lip part that abuts the second member and protrudes in a radial direction perpendicular to the rotating shaft.

公开(公告)号：US20220355874A1

公开(公告)日：2022-11-10

申请号：US17308445

申请日：2021-05-05

Applicant: Caterpillar Inc.

Inventor： Gennaro Suanno

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

Abstract: A track roller for an undercarriage system includes a roller shell with a first inner surface forming a larger diameter shaft bore and a second inner surface forming a smaller diameter shaft bore coaxially arranged with the larger diameter shaft bore. A roller shaft having a first shaft end and a second shaft end supports the roller shell for rotation and has an oil reservoir formed therein. A first sleeve bearing and a second sleeve bearing are positioned upon the roller shaft, and an axially extending oil passage is formed by the second inner surface of the roller shell forming the smaller diameter shaft bore and an outer bearing surface of the second sleeve bearing. The oil reservoir in the roller shaft is confined in its extent to the second shaft end of the roller shaft.

公开(公告)号：US10040495B2

公开(公告)日：2018-08-07

申请号：US14962409

申请日：2015-12-08

Applicant: Caterpillar Inc.

Inventor： Thierry Andre Marchione ,  Brent David Widder ,  Timothy Arthur Thorson ,  Gregory Jerome Kaufmann

IPC: B62D55/32 ,  B62D55/088 ,  B23K1/005 ,  B62D55/092 ,  B62D55/21

Abstract: A method of manufacturing an undercarriage track joint assembly includes forming at least a first portion of a seal assembly by laser brazing an annular, metal sealing washer to a first track link of the undercarriage track joint assembly. The method may also include performing the laser brazing to form at least one of an annular fillet of braze material between the first track link and at least a portion of an inner diameter surface of the washer and an annular fillet of braze material between the first track link and at least a portion of an outer diameter surface of the washer. The method may still further include inserting a second portion of the seal assembly into a counterbore formed in an axial face of a second track link of the track joint assembly such that an axial sealing face of the washer opposite from the first track link slidably engages with the second portion of the seal assembly on the second track link of the track joint assembly to form a sealing surface between the first and second track links.

公开(公告)号：US09995616B2

公开(公告)日：2018-06-12

申请号：US15141317

申请日：2016-04-28

Applicant: Caterpillar Inc.

Inventor： Douglas A. Rebinsky

IPC: G01F23/26 ,  B62D55/21 ,  B62D55/092 ,  B62D55/08

CPC classification number: G01F23/263 ,  B62D55/08 ,  B62D55/092 ,  B62D55/21

Abstract: A fluid level monitoring system for a container defining a chamber includes first and second flexible interdigital capacitive sensors located at first and second ends of the chamber and disposed about a longitudinal axis of the chamber. The first and second flexible interdigital capacitive sensors are configured to be immersed, at least in part, within a fluid contained in the chamber. The fluid level monitoring system further includes a controller disposed in operative communication with the first and second flexible interdigital capacitive sensors, to determine a level of the fluid in the chamber based, at least in part, on an average of measure of parameters received from the first and second flexible interdigital capacitive sensors.

公开(公告)号：US20170369111A1

公开(公告)日：2017-12-28

申请号：US15192933

申请日：2016-06-24

Applicant: Caterpillar Inc.

Inventor： Roger L. Recker

IPC: B62D55/32 ,  B62D55/088 ,  B62D55/15 ,  B62D55/092 ,  B62D55/14 ,  E02F3/32 ,  B62D55/08 ,  B62D55/06

CPC classification number: B62D55/32 ,  B62D55/06 ,  B62D55/08 ,  B62D55/088 ,  B62D55/092 ,  B62D55/14 ,  B62D55/15 ,  E02F3/32

Abstract: A track roller assembly may have a track roller, a roller shaft and collars press fit onto either end of the roller shaft to retain the track roller on the roller shaft with an axial clearance between the collars and the track roller. During assembly, the collars may be press fit onto the shaft ends and forced axially inwardly until further axial movement of the collars is prevented by engagement shoulders of the track roller. A compressive axial load may be applied to the roller shaft to reduce a shaft length of the roller shaft and to cause the roller shaft to slide inwardly relative to the collars. The compressive axial load is removed from the roller shaft so that the roller shaft extends back to the normal shaft length and the collars move axially farther apart as the roller shaft extends back to the normal shaft length.

公开(公告)号：US09840291B2

公开(公告)日：2017-12-12

申请号：US14363949

申请日：2014-01-16

Applicant: KOMATSU LTD.

Inventor： Naoaki Kita

IPC: B62D55/14 ,  B62D55/092 ,  B62D55/15 ,  E02F3/76 ,  B62D55/088

CPC classification number: B62D55/14 ,  B62D55/088 ,  B62D55/092 ,  B62D55/145 ,  B62D55/15 ,  E02F3/7609

Abstract: A roller device includes a shaft, a bushing, a roller shell, a retainer, and an elastic member. The shaft has a rotation axis. The bushing has smaller-diameter parts on both ends and a larger-diameter part arranged between the smaller-diameter parts with stepped portions interposed therebetween, and is fitted over the outer circumference of the shaft to be rotatable relative to the shaft around the rotation axis. The roller shell has a cylindrical shape, and is fitted over the outer circumference of the smaller-diameter parts of the bushing to abut on the stepped portions. The retainer is formed annularly, is fixed detachably to an end face of the bushing, and abuts on the end face of the roller shell with the elastic member interposed therebetween.

公开(公告)号：US09657898B1

公开(公告)日：2017-05-23

申请号：US15185750

申请日：2016-06-17

Applicant: Ronald J. Kile

Inventor： Ronald J. Kile

IPC: F01M11/12 ,  F16N19/00 ,  B62D55/092

CPC classification number: F16N19/003 ,  B62D55/092 ,  F16N29/02 ,  F16N2250/18

Abstract: A lubricating oil reservoir has an open end closed by a cap removably coupled to the open end. The cap is formed with a sensor located in the lubricating oil reservoir. The sensor is for sensing the presence of lubricating oil that fills the lubricating oil reservoir to a recommended oil level for providing machine lubrication, and the non-presence of lubricating oil that does not fill the lubricating oil reservoir to the recommended oil level, and a signal apparatus is operatively coupled to the sensor for issuing a first stimulus in response to the sensor sensing the presence of lubricating oil for identifying a normal lubricating oil level condition, and for issuing a second different stimulus in response to the sensor sensing the non-presence of lubricating oil for identifying a low oil level condition.