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The invention relates to a motor-driven crawler excavator and a working method thereof. The motor-driven crawler excavator is characterized by comprises a walking chassis, a rotating chassis rotationally installed on the walking chassis, a big arm device connected to the rotating chassis in a swing mode, a small arm device connected to the big arm device in a swing mode, a turning device for supporting the big arm device, and a grab bucket device for grabbing a material, the grab bucket device is connected to the end, away from the big arm device, of the small arm device in a swing mode, one end of the turning device is connected with the big arm device in a swing mode, and the other end of the turning device is installed on the rotating chassis in a swing mode. The problems that by meansof an existing scheme where driving is performed through an oil cylinder, the moving distance of a grab bucket and the swing angle of the grab bucket cannot be controlled, the oil cylinder undergoes severe oil leakage after being used for a long time and is difficult to maintain and causes high maintenance cost, energy waste and low work efficiency, and a grab bucket of a traditional excavator cannot adapt to a complicated working environment due to the narrow moving range are solved.
本发明涉及一种电机驱动的履带式挖掘机及其工作方法;其特征在于:包括行走底盘、旋转安装在所述行走底盘上的旋转底盘、摆动连接在所述旋转底盘上的大臂装置、摆动连接在所述大臂装置上的小臂装置、支撑所述大臂装置的翻转装置和抓取物料的抓斗装置;所述抓斗装置摆动连接在所述小臂装置上远离所述大臂装置的一端;所述翻转装置的一端摆动连接所述大臂装置,所述翻转装置的另一端摆动安装在所述旋转底盘上。解决了现有方案造成的采用油缸驱动无法控制抓斗的移动距离与抓斗的摆动角度、油缸长时间使用后油液泄漏严重维修困难而且维修费用较高以及浪费能源工作效率低和传统挖掘机的抓斗的移动范围窄无法适应复杂的工作环境等问题。
The invention relates to a motor-driven crawler excavator and a working method thereof. The motor-driven crawler excavator is characterized by comprises a walking chassis, a rotating chassis rotationally installed on the walking chassis, a big arm device connected to the rotating chassis in a swing mode, a small arm device connected to the big arm device in a swing mode, a turning device for supporting the big arm device, and a grab bucket device for grabbing a material, the grab bucket device is connected to the end, away from the big arm device, of the small arm device in a swing mode, one end of the turning device is connected with the big arm device in a swing mode, and the other end of the turning device is installed on the rotating chassis in a swing mode. The problems that by meansof an existing scheme where driving is performed through an oil cylinder, the moving distance of a grab bucket and the swing angle of the grab bucket cannot be controlled, the oil cylinder undergoes severe oil leakage after being used for a long time and is difficult to maintain and causes high maintenance cost, energy waste and low work efficiency, and a grab bucket of a traditional excavator cannot adapt to a complicated working environment due to the narrow moving range are solved.
本发明涉及一种电机驱动的履带式挖掘机及其工作方法;其特征在于:包括行走底盘、旋转安装在所述行走底盘上的旋转底盘、摆动连接在所述旋转底盘上的大臂装置、摆动连接在所述大臂装置上的小臂装置、支撑所述大臂装置的翻转装置和抓取物料的抓斗装置;所述抓斗装置摆动连接在所述小臂装置上远离所述大臂装置的一端;所述翻转装置的一端摆动连接所述大臂装置,所述翻转装置的另一端摆动安装在所述旋转底盘上。解决了现有方案造成的采用油缸驱动无法控制抓斗的移动距离与抓斗的摆动角度、油缸长时间使用后油液泄漏严重维修困难而且维修费用较高以及浪费能源工作效率低和传统挖掘机的抓斗的移动范围窄无法适应复杂的工作环境等问题。