Steering Drive Axle
1. A two - stage reduction transmission structure is utilized in this bridge.
2. Equal - height tooth cycloidal bevel gears are used for the main reduction. These gears have characteristics such as high gear strength, high transmission efficiency and low noise.
3. An NGW - type planetary reduction transmission mechanism is adopted on the wheel side. Its design is reasonable and compact.
4. Flexible operation is made possible by hydraulic power steering.
5. The bridge housing is cast from nodular cast iron, which endows it with good rigidity and a large load - bearing capacity.
6. A closed multi - disc wet brake is employed. It uses hydraulic pressurization and spring release, guaranteeing stable braking performance as well as high safety and reliability.
Introduction:
Steering drive axle is a crucial transmission component engineered specifically for 13 - 16 ton wheeled excavators. It is equipped with a two - stage reduction transmission structure, a hydraulic power - assisted steering system, and an enclosed multi - disc wet braking system. It combines three essential functions: steering, driving, and braking. Its main task is to transfer the power from the transmission to the wheels and transform it into driving force. Simultaneously, during the operation of the equipment, it guarantees flexible steering and reliable braking, completely satisfying the heavy - duty operation and high - mobility performance demands of construction machinery equipment in complex working conditions.
Main technical parameters:
Total transmission Ratio | 16.91 |
Maximum Output torque | 50000N.m |
Dynamic load each axle | 13000Kg |
Braking torque (single side) | 21000N.m |
Braking oil pressure | 4Mpa |
Braking displacement | 45-128ml |
Angle of turning (inside wheel / outside wheel) | 32° / 25° |
Steering cylinder pressure | 14Mpa |
Oil request for driving axle (API standard) | GL-5:85W/90 Gear Oil (above -12 ℃) |
Brake and cylinder oil | L-HL46 hydraulic oil |
