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Travel unit for mobile machines

a technology for mobile machines and travel units, applied in the direction of machine supports, supplementary fittings, vehicle maintenance, etc., can solve the problem that the known design requires a large production effort, and achieve the effect of reducing production effort and minimizing manufacturing costs

Inactive Publication Date: 2009-07-02
LEIBHERR HYDRAULIKBAGGER GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about a mobile unit for mobile machines with extendable support devices. The invention is designed to save support positions and components, which results in lower production effort and manufacturing costs. The mobile unit has a first, continuous rigid support and a further continuous support or divided support arms that are outwardly pivotably linked to the first support. The design is asymmetric, allowing for a variable track width and underload support. The continuous rigid support can be connected to the second continuous rigid support or two outwardly pivoted supports. The supports can receive actively steered wheel sets as travel devices and can be fixed in their respective position via fixing means. The technical effects of the invention are a lower production effort and minimization of manufacturing costs.

Problems solved by technology

This known design requires a large production effort in particular due to the extensive components and support positions.

Method used

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  • Travel unit for mobile machines
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Examples

Experimental program
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Embodiment Construction

[0018]A first variant of a mobile unit 10 is shown in FIGS. 1 and 2 which has a rigid continuous support 12 which is pivotably connected to a second continuous rigid support 14 via a rotary joint not shown more closely in detail here. Support devices 20, which substantially consist of support plates 22 which can be extended or retracted via adjustment devices 24, are arranged on or after the respective ends of the continuous rigid supports 12 and 14.

[0019]The continuous rigid supports 12 and 14, which are connected to one another via spherical turntables, each have turntable supports 26 at their centers. The rotating deck of the superstructure of the machine can be placed in the usual manner on the turntable support 26 of the rigid continuous support 14. Since these are known designs, this is not shown in any more detail in the drawing.

[0020]A single wheel drive with individual wheels 18 is arranged by means of a further rotary joint which is not shown in any more detail here and wh...

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Abstract

The invention relates to a mobile unit for mobile machines having extensible support devices comprising a first, continuous rigid support on which travel devices and some of the support devices are arranged and on which a further continuous support or divided support arms, which support the remaining support devices, are outwardly pivotably linked. In accordance with the invention, the first, continuous rigid support is aligned at an angle to the imagined longitudinal axis of the mobile unit and the further continuous support or the divided support arms are aligned with point symmetry to a real or imagined pivot point on the continuous rigid support, with them likewise supporting travel devices.

Description

CROSS-REFERENCE TO RELATED APPLICATION(S)[0001]The present application is a divisional application of co-pending U.S. application Ser. No. 11 / 089,638 filed Mar. 25, 2005.BACKGROUND OF THE INVENTION[0002]The invention relates to a travel unit for mobile machines having extensible support devices.[0003]Mobile machines such as hydraulic excavators, cable-operated excavators and other earthmovers and / or transfer units usually have a travel unit at which the travel devices, that is, for example, the wheels or, for example, crawlers, are arranged. The travel unit furthermore as a rule has a receiving plate for a turntable support on which the rotating deck with slewing gear belonging to the superstructure can be placed. This known design requires a large production effort in particular due to the extensive components and support positions.[0004]In another respect, the track width of the machine is, as a rule, fixed by the mobile unit and the running gear linked to it.[0005]A mobile crane ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B60S9/00B66C23/78E02F9/02E02F9/08E02F9/10E21D9/10F16M11/38
CPCE02F9/085B66C23/78
Inventor AUTENRIETH, OLIVER
Owner LEIBHERR HYDRAULIKBAGGER GMBH
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