绳牵引轨道运输车辆液压制动系统的设计

绳牵引轨道运输车辆是一种依靠钢丝绳牵引的煤矿运输设备,主要运行在矿井长距离、大坡度巷道中。在长期工作时,钢丝绳会出现断裂或者打滑的现象,运输车辆必须要及时制动停车,因此为绳牵引车辆提供足够制动力对煤矿安全至关重要。目前的制动装置大多使用碟簧力或者利用制动车自身重力与轨道摩擦制动,这两种方式的制动力有限,制动距离长。针对以上问题,采用液压制动方案对轨道车辆的制动性能进行研究,设计了整个液压制动系统,蓄能器作为主要动力源,并用充液阀稳定蓄能器压力,确定了液压系统的主要参数,合理选择了液压系统的元器件,设计了正压式的制动执行机构,对整个装置进行合理的布置,最后,基于所搭建的制动梭车液压系统试验台,进行了蓄能器建压和制动力测试。结果表明,该系统可以有效提供稳定的液压力,满足了对制动力的需要。

Hydraulic Braking System for Rope Traction Rail Transport Vehicle

Rope traction rail transport vehicle is a kind of coal mine transport equipment relying on wire rope traction, which mainly runs in the long distance and large slope roadway of the mine. In the long-term work, the wire rope will break or slip. The transport vehicle must stop in time, so it is very important to provide enough braking force for the rope traction vehicle for the safety of coal mine. At present, most of the braking devices use disc spring force or brake car's own gravity and rail friction braking, which have limited braking force and long braking distance. In view of the above problems, the hydraulic braking scheme is adopted to study the braking performance of rail vehicles, and the hydraulic brake system is designed. The accumulator is used as the main power source, and the hydraulic charging valve is used to stabilize the accumulator pressure. The main parameters of the hydraulic system are determined, the components of the hydraulic system are reasonably selected, and the rail direct brake actuator is designed, and the entire device is reasonably arranged, Finally, based on the hydraulic system test-bed of the brake shuttle car, the pressure build-up of the accumulator and the braking force are tested. The results show that the system can effectively provide a stable hydraulic pressure and meet the needs of the braking force.