US 12,441,419 B2
Tracked undercarriage roller assembly with temperature monitoring
Eustachio Calia, Matera (IT); and Nicolas Moretti, Verghereto (IT)
Assigned to ITALTRACTOR ITM S.P.A, Bologna (IT)
Appl. No. 17/797,632
Filed by ITALTRACTOR ITM S.P.A, Bologna (IT)
PCT Filed Feb. 5, 2021, PCT No. PCT/IB2021/050944
§ 371(c)(1), (2) Date Aug. 4, 2022,
PCT Pub. No. WO2021/156807, PCT Pub. Date Aug. 12, 2021.
Claims priority of application No. 102020000002371 (IT), filed on Feb. 6, 2020.
Prior Publication US 2023/0150594 A1, May 18, 2023
Int. Cl. B62D 55/32 (2006.01); B62D 55/088 (2006.01); B62D 55/092 (2006.01); B62D 55/14 (2006.01)
CPC B62D 55/32 (2013.01) [B62D 55/088 (2013.01); B62D 55/092 (2013.01); B62D 55/14 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A tracked undercarriage roller assembly comprising:
a roller body having a through cavity delimited by a radially inner surface;
a shaft inserted in the through cavity of the roller body;
a bushing, which develops from a first axial end to a second axial end and radially interposed between the roller body and the shaft;
an annular chamber at least partially filled with lubricant radially interposed between the shaft and the bushing;
a housing seat obtained in the shaft and comprising an inlet portion at an axial end surface of the shaft and a measuring portion placed inside the shaft in an axial position between the first axial end and the second axial end of the bushing, wherein the inlet portion and the measuring portion are aligned with each other along an axial direction;
a temperature transducer located inside the housing seat at the measuring portion; and
a pin inserted in a radial cavity of the shaft to make the shaft integral with an undercarriage chassis, the housing seat not crossing the radial cavity of the shaft;
wherein the measuring portion is placed at a radial distance from the bushing between 8 millimetres and 50 millimetres.