DE8308710U1 - DEVICE FOR STEERING CONTROL FOR CHAIN VEHICLES - Google Patents

Description

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Krupp MaK Maschinenbau GmbH

R. 873

_. ( Applicant; Krupp MaK Maschinenbau GmbH

Falckensteiner Strasse 2-4 2300 Kiel 17

Steering switching device for tracked vehicles

The innovation relates to a device for steering switching for tracked vehicles with combined Manual and steering gears in which the direction of the curve changes when the direction of travel changes and when (which this change is canceled again.

Steering circuits of this type are known and have the task of returning the steering wheel movement when the tracked vehicle is reversing to that of the wheeled vehicle to adapt to familiar conditions and thus enable so-called automatic operation. These but known devices require a lot of installation space, so that they cannot be used under all installation conditions.

The task of the innovation is to provide a particularly space-saving and compact device for switching the steering of the generic kind to create it on A simple way of reversing the direction of rotation by switching coupling elements between Ensure steering wheel and steering linkage.

This object is achieved according to the invention in that the switching mechanism is essentially consists of two coaxial toothed segments, which are connected to two other, fixedly mounted gears in Are engaged, the gears with each other directly or with the interposition of further pairs of gears are also in engagement and a gear is connected to the steering wheel shaft, and that the Steering linkage when driving forward with one tooth segment and when driving backward with the other tooth segment Can be connected via a clutch.

Advantageous refinements of the innovation are characterized by the features of the subclaims.

In the drawing, an embodiment of the innovation is shown schematically. Show it:

1 shows a cross section through a steering switch,

Fig. 3j is a partially sectioned

View along line II-II of FIG. 1.

In the arrangement shown, a vehicle-fixed cladding tube 1 for a steering wheel shaft 2 carries a central shaft 3 for an actuating lever 4. The

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Actuating lever 4 is connected to a steering linkage 5, which is not shown in detail The vehicle's gearbox and steering gear is running.

The shaft 3 is non-rotatably connected to the actuating lever 4 via a parallel key 6. On the wave 3, two ring gear segments 7, 8 are rotatably mounted, with one ring gear segment (shown in FIG the segment 7) is non-rotatably connected to the shaft 3 by a coupling pin 9. The pencil 9 is actuated by a switching rod 10, for example by an electromagnet 11.

The steering wheel shaft 2 carries a pinion 12, which on the one hand with the segment 7, on the other hand with an intermediate gear 13 is in engagement. This intermediate wheel 13 is fixed to the vehicle with a pin 14 on a holding piece 13 and thus on the cladding tube 1 stored. It engages segment 8 and contains a kidney-shaped opening 23 for shaft 3.

The Lsnkradritzel acts during the forward travel shown 12 on segment 7 and thus on lever 4. This moves in the same direction as that Pinion 12 according to arrows 16, 17.

When reversing, the coupling pin 9 is first pulled into the dashed position 9 * with the aid of the magnet 11. The steering wheel must be in the straight ahead position. The segment 8 is now connected to the lever 4 in a rotationally fixed manner. A steering wheel rotation according to arrow 16 causes the intermediate wheel 13 to rotate according to arrow 18 and the segment 8 a rotation according to arrow

The lever k thus moves according to arrow 20, ie in the opposite direction as when driving forward according to arrow 17.

The actuation of the switching magnet 11 is expediently carried out by the direction selector lever for the transmission controlled via a line 21, so that no additional operator intervention is required. The shawl tmagnet 11 in turn first gives the gearbox for selecting a speed level via a line 22 free when the coupling pin 9 is in its respective end position 9 or 9 '.

Claims (3)

Krupp MaK Maschinenbau GmbH R. 873 Äamelderin; Krupp MaK Maschinenbau GmbH Falckensteiner Strasse 2-4 2300 Kiel 17 claims for protection 1. Device for steering switching for tracked vehicles with combined manual and steering gears, in which the direction of the curve changes when the direction of travel is changed changes and in which this change is canceled again, characterized in that the Switching mechanism essentially consists of two coaxial toothed segments (7, 8) with two further, fixedly mounted gears (12,13) are in engagement, the gears (12,13) are also in engagement with each other directly or with the interposition of further pairs of gears and a gear (12) is connected to the steering wheel shaft (2), and that the steering linkage (5) at Forward travel with the toothed segment (7) and when reversing with the other toothed segment (8) can be connected via a clutch (9 »11). 2. Apparatus according to claim 1, characterized in that-the clutch (9,11) for Switching from forward to reverse and vice versa depending on the straight ahead position the steering wheel shaft (2) can be actuated. 3. Apparatus according to claim 1 or 2, characterized in that the toothed segments (7,8) are mounted as parts of a ring gear on the shaft (3) which carries the lever (4) for the steering linkage (5), and that the Shaft (3) contains a clutch ( 9, 11 ) which in lorsn end positions di_5 shaft (3) each rotatably connects to one of the two toothed segments (7, 8).