DE2201290C3 - Curved double axle unit for road vehicles - Google Patents

Description

The invention relates to a curved double axle unit for road vehicles, especially for motor vehicles, in which the two rigid axles are together with the wheels in the curve automatically in the sense of the curve curvature to opposite sides drive in, with both wheel axles on a bogie frame in the middle of their longitudinal extension are pivotably mounted about vertical axes, furthermore the bogie frame between the wheel axles is mounted pivotably about a vertical axis on the vehicle body and on the vehicle body the axis of a steering crank is supported coaxially to the vertical pivot axis of the bogie frame.

In a known unit of this type (DT-AS 11 45 497) is to turn the two wheel axles in the sense of the curve curvature to opposite sides one with the lower one, with the frame connected ring of the slewing ring connected epicyclic gear provided, the sun gear one with swivel arms of the wheel axles connected to the steering crank and its rotating beam with the vehicle frame is rigidly connected.

However, these steering devices are relatively expensive and complicated.

The object of the invention is now to provide a curved double axle unit for road vehicles of the type described to simplify both in terms of manufacture and maintenance.

The solution to this problem is characterized according to the invention in that the arm of the steering crank in The longitudinal extension of the vehicle structure is attached to the rear and is attached to the steering crank by a perpendicular axis two oppositely directed guide rods are articulated, which are known per se ίο One on each wheel axle (rigid axles) arranged, reach through at right angles to the longitudinal extent of the latter extending guide.

Furthermore, an advantageous embodiment of the above-described subject is characterized by that the crank axle is connected to the vehicle body by means of a universal joint, the axles of the universal joint and the horizontal axis of the bogie frame are arranged in one plane, and that the crank axle passes through a pivot bearing held on the bogie frame ao.

This way you get a curvilinear one. self-tracking double axle unit for road vehicles, its two rigid axles exclusively by means of almost maintenance-free pivot bearings on the vehicle body are cut. In addition, the steering according to the invention allows large steering locks and a perfect cornering.

An embodiment of the invention is shown in the drawing and is described in more detail below. It shows

F i g. 1 a double axle assembly for trucks in a side view, partly in a longitudinal section, F i g. 2 also seen from below and FIG. 3 also in plan view during the Cornering.

Here, both rigid axles 1 and 2 are mounted pivotably about vertical axes in a bogie frame 4 by means of slewing rings 3 and 3 ^{r, respectively.} The latter is also mounted on the vehicle body 8 so as to be pivotable about a vertical axis 6 and about a horizontal axis 7 by means of a turntable 5.

To steer the rigid axles 1 and 2, a steering crank 9 is mounted on the vehicle body 8, one of which is on Bogie frame 4 held pivot bearing 10 cross-crank axle 11 via a Kr! /. Joint 12 with the vehicle body 8 is connected.

The axes of the universal joint 12 are arranged so that they the horizontal axis 7 and the vertical Cross axis 6 or are arranged coaxially to these.

At the free end part of the steering crank 9 are two opposing directions on a vertical axis 13 Guide rods 14 and 15 articulated. The latter reach through each one held on the rigid axles 1 and 2, Guide 16 or 17 running at right angles to the latter.

As shown in FIG. 3, the bogie frame 4 and also the Rigid axles 1 and 2 automatically turned in the sense of the curvature of the curve, with steering angles of the Vehicle structure compared to the bogie frame 4 of 45 ° can be achieved, resulting in very tight turning radii result for the vehicle.

For this purpose 3 sheets of drawings

Claims (2)

Patent claims: 1. Curved double axle assembly for road vehicles, especially for motor vehicles, at which the two rigid axles together with the wheels automatically in the curve in the sense of the curvature of the curve turn on opposite sides, with both wheel axles on a bogie frame are each mounted pivotably about vertical axes in the middle of their longitudinal extent, furthermore the bogie frame between the wheel axles on the vehicle body around a vertical axis is pivotably mounted and coaxially to the vertical pivot axis of the vehicle body The bogie frame supports the axle of a steering crank, characterized in that that the arm of the steering crank (9) in the longitudinal extension of the vehicle structure (8) directed backwards is attached and to the Lenkkurbei (9) around a vertical Axis (13) two opposing guide rods (14 and 15) are articulated, which in in a manner known per se, one each arranged on a wheel axle (rigid axles 1 or 2), Reach through at right angles to the longitudinal extension of the latter running guide (16 or 17). 2. Double axle assembly according to claim 1, characterized in that the crank axle (11) means a universal joint (12) is connected to the vehicle body (8). where the axes of the universal joint (12) and the horizontal axis (7) of the bogie frame (4) arranged in one plane are, and that the crank axle (11) on the bogie frame (5) held rotational position (10) reaches through.