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1. 发明申请

WO2021178171A1 SCREW PROFILE MUD-PACKING PREVENTING 审中-公开
公开(公告)号：WO2021178171A1
公开(公告)日：2021-09-10
申请号：PCT/US2021/019345
申请日：2021-02-24
申请人： CATERPILLAR INC.
发明人： SUANNO, Gennaro
IPC分类号： B62D55/088 , B62D55/15 , F16C33/72
摘要： A rotating assembly (100) for a machine (10) is disclosed herein. The rotating assembly (100) includes an annular support structure (200) and a shaft assembly (240). The annular support structure (200) includes a bore (205) therethrough and a protrusion (211) extending helically around a portion of the bore (205). The shaft assembly (240) includes a shaft (250) and a collar (260) coupled to the shaft (250). The collar (260) includes a plurality of grooves (266) located at the outer surface of the collar (260). The collar (260) is positioned within the bore (205) of the annular support structure (200) such that the plurality of grooves (266) are adjacent to the protrusion (211). As the annular support structure (200) rotates, the protrusion (211) rotates and is configured to move debris and mud out of the rotating assembly (100).

2. 发明申请

WO2022235474A1 UNDERCARRIAGE TRACK ROLLER HAVING ASYMMETRIC SHELL WITH OIL GROOVES AND ROLLER SHAFT FOR SAME 审中-公开
公开(公告)号：WO2022235474A1
公开(公告)日：2022-11-10
申请号：PCT/US2022/026694
申请日：2022-04-28
申请人： CATERPILLAR INC.
发明人： SUANNO, Gennaro
IPC分类号： B62D55/15 , B62D55/092
摘要： A track roller (30) for an undercarriage system (14) includes a roller shell (32) with a first inner surface (56) forming a larger diameter shaft bore (58) and a second inner surface (60) forming a smaller diameter shaft bore (62) coaxially arranged with the larger diameter shaft bore (58). A roller shaft (54) having a first shaft end (64) and a second shaft end (66) supports the roller shell (32) for rotation and has an oil reservoir (152) formed therein. A first sleeve bearing (70) and a second sleeve bearing (72) are positioned upon the roller shaft (54), and an axially extending oil passage (78) is formed by the second inner surface (60) of the roller shell (32) forming the smaller diameter shaft bore (62) and an outer bearing surface (76) of the second sleeve bearing (72). The oil reservoir (152) in the roller shaft (54) is confined in its extent to the second shaft end (66) of the roller shaft (54).

3. 发明申请

WO2022140058A1 PRESS FIT ROLLER COLLAR 审中-公开
公开(公告)号：WO2022140058A1
公开(公告)日：2022-06-30
申请号：PCT/US2021/062309
申请日：2021-12-08
申请人： CATERPILLAR INC.
发明人： UMBACH, Brian B. , SUANNO, Gennaro , RECKER, Roger L. , MATHIEN, Daniel E. , CALL JR., Dale T. , HEISE, Jordan M. , MAGNER, Scott H.
IPC分类号： F16C13/00 , B62D55/088 , B62D55/15 , F16C33/74
摘要： A track roller shaft (300) comprises a body including a revolved surface defining an axis of rotation (204), a radial direction (208), and a circumferential direction (206) disposed about the axis of rotation (204). The body also defines a proximate axial end (310) disposed along the axis of rotation (204), a radially extending hole (306) that is disposed axially adjacent to the proximate axial end (310), and a guide member receiving pocket (304) disposed axially further away from the proximate axial end (310) than the radially extending hole (306).

4. 发明申请

WO2022093880A1 ROLLER FRAME ASSEMBLY IN GROUND-ENGAGING TRACK SYSTEM HAVING ANTI-BACKBENDING ROLLERS AND METHOD 审中-公开
公开(公告)号：WO2022093880A1
公开(公告)日：2022-05-05
申请号：PCT/US2021/056729
申请日：2021-10-27
申请人： CATERPILLAR INC.
发明人： SUANNO, Gennaro , ABELLO, Benoit , DARGES, Michael James
IPC分类号： B62D55/14 , B62D55/15 , B62D55/30
摘要： A ground-engaging track system (14) includes a track roller frame (16), an idler (28), and anti-backbending rollers (52,54) supported by the track roller frame (16) at locations between track rollers (50) and the idler (28). The anti-backbending rollers (52,54) define an idler space (56) receiving the idler (28) partially therein and positioned to oppose backbending of a deflection-sensitive section (118) of a ground-engaging track (38).

5. 发明申请

WO2021188265A1 CANTILEVERED TRACK ROLLER IN GROUND-ENGAGING TRACK SYSTEM AND ROLLER SHELL FOR SAME 审中-公开
公开(公告)号：WO2021188265A1
公开(公告)日：2021-09-23
申请号：PCT/US2021/019348
申请日：2021-02-24
申请人： CATERPILLAR INC.
发明人： SUANNO, Gennaro
IPC分类号： B62D55/08 , B62D55/15
摘要： A ground-engaging track system (14) includes a track roller (38) having a roller shell (40) with an outer tread surface (42), and a roller shaft (48) supporting the roller shell (40) for rotation and cantilevering the track roller (38) to a track roller frame (36). The track roller (38) is positionable in the track system (14) to contact only one of a first track rail (24) or a second rail (26) in a ground-engaging track.

6. 发明申请

WO2023283083A1 TRACK ROLLER HAVING COLLAR FORMING OIL VOID FOR IMPROVED SEAL LUBRICATION 审中-公开
公开(公告)号：WO2023283083A1
公开(公告)日：2023-01-12
申请号：PCT/US2022/035423
申请日：2022-06-29
申请人： CATERPILLAR INC.
发明人： SUANNO, Gennaro , HAKES, David J. , HUNT, Lewis C.
IPC分类号： B62D55/092 , B62D55/15
摘要： A track roller (26) includes a roller shell (28), a roller shaft (76) extending through the roller shell (28), and a collar (60). The collar (60) includes a center body (62) interference-fitted upon the roller shaft (76), and a seal carrier (74). A clearance (96) extends radially between a center body outer surface (72) and a face seal assembly (84) held in axial compression between the seal carrier (74) and the roller shell (28). An oil void (100) is formed in the center body (62) and fluidly connected to the clearance (96) to provide an increased oil volume for lubrication and heat-dissipation.

7. 发明申请

WO2022203943A1 TRACK ROLLER FOR UNDERCARRIAGE SYSTEM HAVING INVERTED SEAL, AND ROLLER RIM FOR SAME 审中-公开
公开(公告)号：WO2022203943A1
公开(公告)日：2022-09-29
申请号：PCT/US2022/020846
申请日：2022-03-18
申请人： CATERPILLAR INC.
发明人： SUANNO, Gennaro , CINQUANTA, Andrea , NOZZA, Graziano
IPC分类号： B62D55/15 , B62D55/092
摘要： A track roller (30) for an undercarriage system (14) includes a roller rim (32) defining a roller axis and including a first seal bore (40) formed in a first axial end (38) and a second seal bore (44) formed in a second axial end (42). A roller shaft (46) extends through the first seal bore (40) and the second seal bore (44), and may include a straight shaft having an uninterrupted cylindrical outer surface. A first seal assembly (58) includes a first outer seal carrier (60) interference-fitted within the first seal bore (40), and a second seal assembly (66) includes a second outer seal carrier (68) interference-fitted within the second seal bore (44). The first seal assembly (58) and the second seal assembly (66) include a first face seal (64) and a second face seal (72), respectively, each including an outer seal ring (74,76) and an outer seal element (78,80), and an inner seal ring (82,84) and an inner seal element (86,88), where each outer seal element (78,80) is radially inward of the respective outer seal ring (74,76) and squeezed in radial compression to form a fluid seal with the respective outer seal carrier (60,68).

8. 发明申请

WO2022159219A1 RIM FOR A TRACK ROLLER 审中-公开
公开(公告)号：WO2022159219A1
公开(公告)日：2022-07-28
申请号：PCT/US2021/064301
申请日：2021-12-20
申请人： CATERPILLAR INC.
发明人： SUANNO, Gennaro
IPC分类号： B62D55/14
摘要： A rim includes a wall, a first annular projection, and a second annular projection. The wall has a first end and a second end. The first end includes a first opening, and the second end includes a second opening that communicates with the first opening to define a bore for a shaft of a track roller. The first annular projection and the second annular projection, which are configured to engage a track, extend radially from the wall. The first annular projection includes a first flange that is configured to constrain movement of the track in a first axial direction. The first flange includes a plurality of notches. The second annular projection includes a second flange that is configured to constrain movement of the track in a second axial direction that is opposite to the first axial direction.

9. 发明申请

WO2021080713A1 ANNULAR SUPPORT STRUCTURE FOR TRACK VEHICLE 审中-公开
公开(公告)号：WO2021080713A1
公开(公告)日：2021-04-29
申请号：PCT/US2020/051194
申请日：2020-09-17
申请人： CATERPILLAR INC.
发明人： SUANNO, Gennaro
IPC分类号： B62D55/14 , B60B11/02
摘要： An annular support structure (100, 200) for a track vehicle (10) is disclosed herein. The annular support structure (100, 200) includes a first piece (110, 210) and a second piece (160, 260). The first piece (110, 210) includes a first hub portion (120, 220), a first web (130, 230) extending radially outward from the first hub portion (120, 220), and a first outer body portion (140, 240) extending radially outward from the first web (130, 230). The second piece (160, 260) includes a second hub portion (170, 270), a second web (180, 280) extending radially outward from the second hub portion (170, 270), and a second outer body portion (190, 290) extending radially outward from the second web (180, 280). The first piece (110, 210) and the second piece (160, 260) joined together at an inner joint (150, 250) located proximate to the first hub portion (120, 220) and the second hub portion (170, 270) and the first piece (110, 210) and the second piece (160, 260) adjacent to each other at an outer joint (155, 255) located proximate to the first outer body portion (140, 240) and the second outer body (190, 290).

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