设计了一种可往复循环的水洗式黑板自动擦拭机。它由电机驱动系统、控制系统、水循环系统、牵引系统以及板面、板擦构成。电机驱动系统及控制系统封装在板面左侧的控制柜中，使用者可通过操作按钮，实现系统运转。%The paper introduced a machine which can clean the blackboard with water by reciprocating .The machine is composed of motor-driving system ,controlling system ,water-cycling system ,towing system ,board and eraser .Motor-driving system and controlling system were installed in the controlling cabinet fixed on the on the left of the board .People can operate the button to make the machine run .
展开▼
