Wheel hub drive for industrial trucks
AssigneeJungheinrich Aktiengesellschaft
InventorAndreas Rogg
Life of this patent
Estimating the term…
Abstract
A wheel hub drive with drive motor and drive gear system for industrial trucks, with the following features: driving and output axis of the drive gear system, rotation axis of the wheel and driving axis of the drive motor are disposed coaxially; the drive gear system is a single step or multi step planetary stepping gear system or a two or more step planetary coupler mechanism gear system, two horizontally spaced wheel bearings are located inside the drive gear system, wherein, a first wheel bearing is disposed between a first bearing portion, connected with the wheel hub, and a frame-fixed planet carrier, and a second wheel bearing is disposed between the first bearing portion and a frame-fixed second bearing portion or the frame-fixed planet carrier.
Claims7
A wheel hub drive with drive motor and drive gear system for industrial trucks, comprising:
- driving and output axis of the drive gear system, rotation axis of a wheel and driving axis of the drive motor are disposed coaxially;
- the drive gear system is a single step or multi step planetary stepping gear system or a two or more step planetary coupler mechanism gear system;
- two horizontally spaced wheel bearings are located inside the drive gear system, wherein a first wheel bearing (2a) is disposed between a first bearing portion, connected with the wheel hub (8), and a frame-fixed planet carrier (3, 16), and a second wheel bearing (2b) is disposed between the first bearing portion and a frame-fixed second bearing portion or the frame-fixed planet carrier (3, 16), and
- further characterised in that a two step planetary coupler mechanism gear system is provided, and the first bearing portion is formed by a second planet carrier (1) of a first step of the planetary coupler mechanism gear system.
A wheel hub drive with drive motor and drive gear system for industrial trucks, comprising:
- driving and output axis of the drive gear system, rotation axis of a wheel and driving axis of the drive motor are disposed coaxially;
- the drive gear system is a two step planetary coupler mechanism gear system;
- two horizontally spaced wheel bearings are located inside the drive gear system, wherein a first wheel bearing is disposed between a first bearing portion, connected with the wheel hub, and a frame-fixed planet carrier, and a second wheel bearing is disposed between the first bearing portion and a frame-fixed second bearing portion or the frame-fixed planet carrier,
- further wherein the first bearing portion is formed by a second planet carrier of a first step of the planetary coupler mechanism gear system.
A wheel hub drive with drive motor and drive gear system for industrial trucks, comprising:
- driving and output axis of the drive gear system, rotation axis of a wheel and driving axis of the drive motor are disposed coaxially;
- the drive gear system is a single step or multi step planetary stepping gear system or a two or more step planetary coupler mechanism gear system;
- two horizontally spaced wheel bearings are located inside the drive gear system, wherein a first wheel bearing is disposed between a first bearing portion, connected with the wheel hub, and a frame-fixed planet carrier, and a second wheel bearing is disposed between the first bearing portion and a frame-fixed second bearing portion or the frame-fixed planet carrier,
- further wherein the hub as a hollow wheel forms an output element for the second step of the planetary coupler mechanism gear system or the last step of the planetary stepping gear system, respectively.
Dependencies are inferred from the claim text.