Bridge box hydraulic system of power gear-shifting tractor

• Main Authors: ZHANG XIAO, YAN YINGBO, QIU HUIPENG, WANG ZILONG
• Format: Patent
• Language: Chinese; English
• Published: 27.02.2024
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; ENGINEERING ELEMENTS AND UNITS; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; THERMAL INSULATION IN GENERAL; WEAPONS

The invention discloses a power shift tractor axle box hydraulic system. The power shift tractor axle box hydraulic system is characterized in that a lifting system oil pump and filtering system is connected with a lubricating loop and a power shift control loop; the power gear shifting control loop is connected with the AMT auxiliary box control loop and the rear axle and PTO control loop. The lubricating loop is used for lubricating a power gear shifting gearbox in the power gear shifting control loop, an AMT auxiliary box and a rear axle in the AMT auxiliary box control loop, and a wet clutch, a bearing, a gear and a spline in the PTO control loop; the power gear shifting control loop provides system pressure and controls the power gear shifting clutch and the four-wheel drive clutch to form gears. The AMT auxiliary box control loop controls a synchronizer in an AMT auxiliary box to achieve gear shifting operation and controls a gear climbing synchronizer to achieve gear climbing. The rear axle and PTO con