Planetary wheel drive with accessible low-torque disc brakes
US4010830A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1975 |
| Grant date | Mar 8, 1977 |
| Priority date | — |
| Expiry date | Apr 11, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2055/0058
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a planetary wheel drive, disc braking is provided with the discs located outwardly of the gearing so as to be readily accessible for servicing. One set of discs is splined to the drive shaft, rotating faster than the wheel by the factor of the gear ratio, so that advantages comparable to all those advantages heretofore attained by high ratio planetary wheel braking are still attained, with the accessibility here achieved. PAC INTRODUCTION The invention to which the present disclosure is offered for public dissemination in the event that adequate patent protection is available relates to braking for planetary wheel drives. Planetary wheel drives or final drives are commonly used in trucks and other heavy-duty vehicles and may have a gear ratio of the order of 5 to 1 which is considered very advantageous. Wheels driven in this manner may be steerable wheels, and in that event the driving torque which must be transmitted through the necessary universal joints and the drive system to the axle is reduced by the said gear ratio. Disc brakes have been proposed for such planetary wheel drives theretofore, and in at least some instances have been of high ratio nature because of braking t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.