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A platform for research: civil engineering, architecture and urbanism
Limiting control method for variable-frequency speed-regulating mining excavator
The invention discloses a limit control method for a variable-frequency speed-regulation mining excavator, which comprises the following steps: in the operation process of a driving motor, a frequency converter in variable-frequency speed regulation acquires the pulse number of a speed measurement encoder, and the rotation angle of the driving motor is obtained based on the pulse number; and the operation distance of the operation mechanism controlled by the driving motor is obtained according to the rotation angle. Therefore, according to the limiting control method for the variable-frequency speed-regulating mining excavator, the lifting and pushing operation distance of the mining excavator is accurately obtained by depending on existing software and hardware such as the frequency converter and the existing functions thereof, the PLC and the calculation and memory capabilities thereof, the frequency converter is electrified to operate as long as a corresponding mechanism operates, and the limiting protection of the excavator can be realized; compared with a method for installing a sensor, the method is higher in reliability. In addition, the method and a method for limiting by additionally installing a sensor jointly form a redundant limiting system of the electric shovel, and a road is laid for remote operation and unmanned operation limiting requirements of the electric shovel.
本发明公开了一种变频调速的矿用挖掘机的限位控制方法，限位控制方法包括：在驱动电机运行的过程中，变频调速中的变频器采集测速编码器的脉冲数，基于脉冲数得到驱动电机的旋转角度，进而根据旋转角度获得驱动电机所控制的运行机构的运行距离。由此，变频调速的矿用挖掘机的限位控制方法依靠已有的软硬件，如变频器及其已有的功能、PLC及其计算、记忆能力，准确地获得矿用挖掘机的提升、推压的运行距离，只要相应的机构运行，变频器就通电运行，就可以实现挖掘机限位保护，该方法与加装传感器的方法相比其可靠性更高。而且本方法与加装传感器进行限位的方法共同构成电铲的冗余限位系统，为电铲的远程操作、无人操作限位要求铺平了道路。
Limiting control method for variable-frequency speed-regulating mining excavator
The invention discloses a limit control method for a variable-frequency speed-regulation mining excavator, which comprises the following steps: in the operation process of a driving motor, a frequency converter in variable-frequency speed regulation acquires the pulse number of a speed measurement encoder, and the rotation angle of the driving motor is obtained based on the pulse number; and the operation distance of the operation mechanism controlled by the driving motor is obtained according to the rotation angle. Therefore, according to the limiting control method for the variable-frequency speed-regulating mining excavator, the lifting and pushing operation distance of the mining excavator is accurately obtained by depending on existing software and hardware such as the frequency converter and the existing functions thereof, the PLC and the calculation and memory capabilities thereof, the frequency converter is electrified to operate as long as a corresponding mechanism operates, and the limiting protection of the excavator can be realized; compared with a method for installing a sensor, the method is higher in reliability. In addition, the method and a method for limiting by additionally installing a sensor jointly form a redundant limiting system of the electric shovel, and a road is laid for remote operation and unmanned operation limiting requirements of the electric shovel.
本发明公开了一种变频调速的矿用挖掘机的限位控制方法，限位控制方法包括：在驱动电机运行的过程中，变频调速中的变频器采集测速编码器的脉冲数，基于脉冲数得到驱动电机的旋转角度，进而根据旋转角度获得驱动电机所控制的运行机构的运行距离。由此，变频调速的矿用挖掘机的限位控制方法依靠已有的软硬件，如变频器及其已有的功能、PLC及其计算、记忆能力，准确地获得矿用挖掘机的提升、推压的运行距离，只要相应的机构运行，变频器就通电运行，就可以实现挖掘机限位保护，该方法与加装传感器的方法相比其可靠性更高。而且本方法与加装传感器进行限位的方法共同构成电铲的冗余限位系统，为电铲的远程操作、无人操作限位要求铺平了道路。
Limiting control method for variable-frequency speed-regulating mining excavator
一种变频调速的矿用挖掘机的限位控制方法
LIU XIAOXING (author) / YUE HAIFENG (author) / GUO YUNFEI (author) / FAN XIBIN (author) / MOTOHIKO (author) / PAN LIZHEN (author) / LI FEN (author) / NIU SHUO (author) / ZHANG BAIRONG (author) / JIA ZEYI (author)
2022-04-29
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
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