Independent Wheel Suspension for a Spring-Mounted Steerable Wheel

• US 20130069336A1
• Filed: 05/30/2011
• Published: 03/21/2013
• Est. Priority Date: 06/01/2010
• Status: Active Grant

• Current Assignee: Horsch Maschinen GmbH (Horsch Holding AG)
• Original Assignee: Horsch Maschinen GmbH (Horsch Holding AG)
• Inventors: Horsch, Michael
• Granted Patent: US 9,278,594 B2
• Time in Patent Office: Days
• US Class Current: 280/124.154
• CPC Class Codes: B60G 11/30 having pressure fluid accumulator therefor, e.g. accumulator arranged in vehicle frame dampers accumulating utilisable energy B60G13/14
• CPC Class Codes: B60G 2200/10 Independent suspensions
• CPC Class Codes: B60G 2200/44 steerable
• CPC Class Codes: B60G 2202/154 with an accumulator
• CPC Class Codes: B60G 2204/4232 Sliding mounts
• CPC Class Codes: B60G 2300/08 Agricultural vehicles
• CPC Class Codes: B60G 3/01 the wheel being mounted for sliding movement, e.g. in or on a vertical guide camber maintaining means B60G3/26
• CPC Class Codes: B60Y 2200/22 Agricultural vehicles
• CPC Class Codes: B62D 7/06 for individually-pivoted wheels, e.g. on king-pins

Abstract

Disclosed is an independent wheel suspension (1) for a steerable wheel (37) having a motor (3). The motor is connected via a linear guide (5), which is movable in an approximately vertical direction (A), to a revolute joint (7) which produces a steering connection, pivotable about an at least approximately vertically running axis of rotation (B), to a vehicle frame (39). The linear guide (5) is coupled to a fluidic spring and/or damping element (9) which forms a load-bearing constituent part of the revolute joint (7).

Claims

1. An independent wheel suspension (1) for a steerable wheel (37) of a vehicle, in particular an agricultural towing, transport or specialty vehicle having a steering column (17) which cooperates with a linear guide (5) movable in an approximately vertical direction (A) via a revolute joint (7), wherein the revolute joint (7) creates a steering connection to a vehicle frame (39) pivotable around an at least approximately vertically running axis of rotation (B) and wherein the linear guide (5) is coupled to a fluidic spring and/or damping element (9) which forms a load-bearing component of the revolute joint (7).

2. An independent wheel suspension according to claim 1 in which at least parts of the fluidic spring and/or damping element (9) project into or are integrated in the steering column (17).

3. An independent wheel suspension according to claim 1 in which the fluidic spring and/or damping element (9) is arranged in the steering column (17) as an integrated component.

4. An independent wheel suspension according to claim 1 in which the steering column (17) is designed as a cylinder or lifting cylinder for the fluidic spring and/or damping element (9).

5. An independent wheel suspension according to claim 1 in which the linear guide (5) is equipped with a drive motor (3) for driving the steerable wheel (37).

6. An independent wheel suspension according to claim 1 in which the linear guide (5) is formed with a slide (5a), wherein the slide (5a) and the revolute joint (7) each comprise at least one linear guide element (25, 27) with the at least one guide rod (23) running through it such that the slide (5a) and the revolute joint (7) are movable relative to each other in a linear direction (A).

7. An independent wheel suspension according to claim 1 in which the steering column (17) is designed to transmit a torque to the revolute joint (7).

8. An independent wheel suspension according to claim 1 in which the cylinder or the spring and/or damping element (9) coupled with or at least partially integrated in the steering column (17) comprises an air bellows (15) which has a spring-mounted connection with a prop (31) of the slide (5a).

9. An independent wheel suspension according to claim 1 in which the spring and/or damping element (9) comprises one or a plurality of pressure reservoirs (11) with connections (13), wherein the pressure reservoirs (11) have a fluidic connection with the cylinder or the spring and/or damping element of the steering column (17) by way of line systems.

10. An agricultural utility vehicle (35) having at least one independent wheel suspension (1) according to claim 1, a vehicle frame (39) which the at least one independent wheel suspension (1) is arranged on and at least one or a plurality of ground treatment or semi-mounted devices (41) attached on the vehicle frame.