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阿里河林业局贮木场,于1988年研制一种新型龙门吊大车防滑装置,该装置由司机在驾驶室内随时控制,操作简便,工作安全、可靠。结构简单,加工容易,成本低。此装置由电磁铁、楔铁、拐臂、拉杆、吊杆等零件组成(见图),为平面四杆机构。其工作原理:①开启(起楔):当司机在操作室按下电钮时,电磁铁1接
Ali River Forestry Bureau storage yard, in 1988 to develop a new gantry crane anti-skid device, the device at any time by the driver in the control of the cab, easy to operate, safe and reliable. Simple structure, easy processing and low cost. This device consists of electromagnet, wedge iron, crank, rod, boom and other components (see photo), for the plane four-bar mechanism. Its working principle: ① open (wedge): When the driver presses the button in the operating room, the electromagnet 1