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常规的门座起重机行走驱动装置,其制动系统多数是选用电力液压快式制动器对主动轴施加制动力矩,而施加制动力矩的大小,主要通过调整拉杆弹簧预紧力的大小来实现。厂家给出的表征调整参数主要有:制动块与制动轮间隙和拉杆弹簧预紧刻度。在实际使用中,往往由于弹簧力、制动块与制动轮间隙、制动轮和制动块的表面状态等参数的变化,以及维修人员的技术状态等因素,造成制动力矩有较大波动。由于每台门座起重机一
Conventional portal crane travel drive, the majority of its braking system is the use of electric hydraulic quick brake brake torque applied to the drive shaft, and the size of the applied braking torque, mainly by adjusting the lever spring preload size to achieve. Manufacturers to give the characterization of the adjustment parameters are: brake pad and brake wheel clearance and spring preload lever scale. In actual use, often due to the spring force, the brake pad and the brake wheel clearance, the brake wheel and the brake block surface state parameters such as changes, as well as technical status of maintenance personnel and other factors, resulting in a larger braking torque fluctuation. One for each gantry crane