US 12,291,838 B2
Construction equipment provided with a specific arrangement to allow titling movement within electric actuator
Alexandre Gateau, Tresserve (FR); Ludovic Maxant, Viviers du Lac (FR); Gauthier Brunet, Lyons (FR); Henrik Strand, Eskilstuna (SE); and Sylvain Houel, Le Bourget du Lac (FR)
Assigned to Volvo Construction Equipment AB, Eskilstuna (SE)
Filed by Volvo Construction Equipment AB, Eskilstuna (SE)
Filed on Oct. 4, 2023, as Appl. No. 18/480,852.
Claims priority of application No. 22200074 (EP), filed on Oct. 6, 2022.
Prior Publication US 2024/0117591 A1, Apr. 11, 2024
Int. Cl. E02F 3/42 (2006.01)
CPC E02F 3/425 (2013.01) [E02F 3/427 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A construction equipment, comprising a framework and at least one electric actuator for moving at least one element of the framework, wherein the actuator comprises:
a ball or roller screw system comprising a threaded rod and a nut forming a helical connection with the threaded rod,
an electric motor for driving the threaded rod in rotation around a longitudinal axis, thereby forcing the nut to move axially along the threaded rod;
a carriage which is axially connected with the nut, and
an axial guide for guiding movement of the carriage, wherein the axial guide is fixed to the framework,
at least one support element that connects, directly or indirectly, said threaded rod to said framework, wherein said support element is configured such that threaded rod can tilt, to some extent, relative to framework around any axis perpendicular to the longitudinal axis, and one end of the threaded rod is connected to an output shaft of a transmission organ through a cardan joint or an elastic coupling arrangement.