The invention relates to the technical field of braking equipment, and discloses an auxiliary speed reducer for a downhill of a heavy-duty truck. The auxiliary speed reducer comprises a fixed seat fixedly mounted on a chassis of the truck, and a vertically arranged positioning cylinder is fixedly connected inside a positioning cylinder. According to the auxiliary speed reducer for the downhill ofthe heavy-duty truck, on the occasions of the long downhill or other occasions needing continuous braking, kinetic energy generated when the truck advances can be effectively converted into heat energy of hydraulic oil for auxiliary braking, meanwhile, gravitational acceleration during downhill can be counteracted, and normal running of the truck is guaranteed on the premise that braking is not frequently stepped on; according to the device, friction is conducted in turn through three connecting frames, local overheating is avoided, meanwhile, the heat dissipation capacity of hydraulic oil isenhanced, the overall temperature is reduced, the heating influence is small, the device is far away from a hub, the phenomena of tire explosion, axle deformation and the like caused by overheating are avoided, and on the other hand, when a vehicle is parked on a ramp, the vehicle sliding risk can be reduced through the device.
本发明涉及制动设备技术领域,且公开了一种载重货车下坡用辅助减速装置,包括固定安装在货车底盘上的固定座,所述定位缸的内部固定连接有竖直设置的定位缸。该载重货车下坡用辅助减速装置,在长下坡或其他需要连续刹车的场合,可以有效的将汽车前进的动能转变为液压油的热能,进行辅助制动,同时也可抵消下坡时的重力加速度,在不频繁踩刹车的前提下,保证车辆的正常行驶,其次,该装置通过三组连接架轮流摩擦,避免局部过热,同时增强了液压油的散热能力,降低整体温度,受热影响较小,并且,由于该装置远离轮毂,避免过热导致的轮胎爆炸,轮轴变形等现象,另一方面,在坡道上停车时,通过该装置也可降低溜车风险。
Auxiliary speed reducer for downhill of heavy-duty truck
一种载重货车下坡用辅助减速装置
2020-11-24
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
Heavy Truck and Bus Retarder Downhill Performance Mapping Procedure
SAE Technical Papers | 2000
Truck Downhill Control - Prediction Procedure
SAE Technical Papers | 1963
|European Patent Office | 2020
|