5results about "Hydraulic steering gears" patented technology

The present disclosure provides an asphalt finisher capable of improving the accuracy of rudder angle control. The asphalt finisher is provided with a plurality of wheels including a steering wheel, a steering cylinder (54) that adjusts the rudder angle of the steering wheel, and a hydraulic pump (55) that supplies working oil to the steering cylinder (54). Furthermore, the asphalt finisher is provided with a proportional control valve (56p) disposed between the hydraulic pump (55) and the steering cylinder (54) and controlling the flow rate and direction of the working oil supplied to the steering cylinder (54), and a controller that controls the rudder angle by controlling the proportional control valve (56p).

An asphalt finisher is provided and includes a plurality of wheels including a steered wheel; a steering cylinder configured to adjust a steered angle of the steered wheel; a hydraulic pump configured to supply hydraulic oil to the steering cylinder; a proportional control valve disposed between the hydraulic pump and the steering cylinder, and configured to control a flow rate and a direction of the hydraulic oil supplied to the steering cylinder; and a controller configured to control the proportional control valve to control the steered angle.

A steering gear (1) for a vehicle (200) is disclosed, comprising: - a case (2); - a first and a second displacement element (10, 11); - a force-absorbing element (9); - an output interface (30), where the displacement elements (10, 11) are provided in an interior of the housing (2) and divide this into displacement chambers (3, 4, 5), wherein the displacement elements (10, 11) are displaceable, wherein the displacement elements (10, 11) each have force transmission elements (12, 13), wherein the force transmission elements (12, 13) are mechanically engaged with the force receiving element (9), wherein the force receiving element (9) is rotatable about a rotation axis (14) and is mechanically coupled to the output interface (30), wherein the steering gear (1) is designed such that the displacement elements (10, 11) can be moved into and / or out of at least one of the displacement chambers (3, 4, 5) by supplying and / or removing pressure medium, so that force effects are applied to the force receiving element (9) via the engagement between the force receiving element (9) and the force transmission elements (12, 13), wherein The force acting on the force receiving element (9) imposes a torque on the output interface (30) via the mechanical coupling of the force receiving element (9) with the output interface (30). Furthermore, a steering unit (50), an axle unit (100) and a vehicle (200) are disclosed.

An asphalt finisher is provided and includes a plurality of wheels including a steered wheel; a steering cylinder configured to adjust a steered angle of the steered wheel; a hydraulic pump configured to supply hydraulic oil to the steering cylinder; a proportional control valve disposed between the hydraulic pump and the steering cylinder, and configured to control a flow rate and a direction of the hydraulic oil supplied to the steering cylinder; and a controller configured to control the proportional control valve to control the steered angle.

This disclosure provides an asphalt finisher capable of improving the precision of steering angle control. [Solution] The asphalt finisher includes a plurality of wheels, including steering wheels, a steering cylinder 54 that adjusts the steering angle of the steering wheels, and a hydraulic pump 55 that supplies hydraulic fluid to the steering cylinder 54. The asphalt finisher also includes a proportional control valve 56p positioned between the hydraulic pump 55 and the steering cylinder 54, which controls the flow rate and direction of the hydraulic fluid supplied to the steering cylinder 54, and a controller that controls the steering angle by controlling the proportional control valve 56p.