螺杆式启闭机可以分为：手电两用螺杆式启闭机手推式螺杆式启闭机、侧摇式启闭机、手动螺杆启闭机等几种用螺纹杆直接或通过导向滑块、连杆与闸门门叶相连接，螺杆上下移动以启闭闸门的机械。螺杆支承在承重螺母内,螺母和传动机构（伞齿轮传动或蜗轮传动）固定在支承架上。接通电源或用人力手摇柄拖动传动机构，带动承重螺母旋转,使螺杆升降以启闭闸门。螺杆是受压受拉杆件,需要下压力迫使闸门下降时应计算压杆的稳定性。螺杆式启闭机结构简单，坚固耐用，造价低廉，适用于小型平面闸门和弧形闸门，其启闭力一般在200kN以下。500kN、750kN大容量的螺扭王块模具 高铁遮板模具 阶梯护坡模具 拱形护坡模具 卵形槽模具 保定室内设计培训 保定平面设计培训杆启闭机也已生产,用于潜水孔平面闸门和弧形闸门的操作。
Screw hoist can be divided into: manual and electric screw hoist, hand push screw hoist, side swing hoist, manual screw hoist and so on. The screw rod is connected with the gate leaf directly or through the guide slider and connecting rod, and the screw moves up and down to open and close the gate. The screw is supported in the bearing nut, and the nut and transmission mechanism (bevel gear drive or worm gear drive) are fixed on the support frame. Turn on the power supply or use manual handle to drag the transmission mechanism to drive the bearing nut to rotate, so that the screw can be lifted and lowered to open and close the gate. The screw is a tension rod under pressure, and the stability of the pressure bar should be calculated when the downward pressure forces the gate to drop. The screw hoist has the advantages of simple structure, strong durability and low cost. It is suitable for small plane gate and radial gate, and its hoisting force is generally less than 200kn. 500kN and 750kn large capacity screw hoists have also been produced for the operation of the plane gate and radial gate of the phreatic hole