Compact hydraulic drive mechanism for wheel assemblies
First Claim
1. A driving mechanism, for use as a traction motor in a working vehicle, including a housing 17 encompassing a hydromotor (2), said hydromotor (2) having a rotary output means (18A, 18B), at least one planetary gearing (5 or 6) connected to the outlet means to drive a hollow wheel means (3) adapted for torque delivery to a main driving wheel of said vehicle, wherein for absorbing external bearing pressures the hollow wheel is supported by bearings (7, 8) on a hub support (13) which also serves as a supporting member for said planetary gearing, and which encompasses and supports said support (17), containing said hydromotor (2), and a transmission brake (15) disposed axially of said hydromotor and said brake (15) is situated around a bearing of said hydromotor (2).
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Accused Products
Abstract
A driving mechanism, specially for use as tractor motor or servomotor, is made specially compact and makes possible the use of a simple, flat main wheel such as a sprocket. The compact construction is obtained by a few structural parts mostly made of one piece such as a hollow wheel for torque delivery and assembly of the main wheel driven by the mechanism and a hub support for carrying the hollow wheel and gear cap with simultaneous support for part of the gearing. A sound-insulated hydromotor is accommodated in the interior of the driving mechanism, a safety brake surrounds part of the hydromotor so as to result in a space-saving construction. Since the driving mechanism is axially not longer than the width of a tractor chain, it remains well protected when it serves as driving motor in a caterpillar vehicle.
31 Citations
11 Claims
- 1. A driving mechanism, for use as a traction motor in a working vehicle, including a housing 17 encompassing a hydromotor (2), said hydromotor (2) having a rotary output means (18A, 18B), at least one planetary gearing (5 or 6) connected to the outlet means to drive a hollow wheel means (3) adapted for torque delivery to a main driving wheel of said vehicle, wherein for absorbing external bearing pressures the hollow wheel is supported by bearings (7, 8) on a hub support (13) which also serves as a supporting member for said planetary gearing, and which encompasses and supports said support (17), containing said hydromotor (2), and a transmission brake (15) disposed axially of said hydromotor and said brake (15) is situated around a bearing of said hydromotor (2).
Specification