Headstock gear is used for all kinds of large water supply and drainage, water conservancy and hydropower projects. It is used to control the lifting of various large and medium cast iron gates and steel gates to achieve the purpose of opening and closing.

结构特点

Structural characteristics

1、启闭机包括电机、启闭机、机架、防护罩等组成；采用三级减速方式，用螺旋付传动，输出转距更大。启闭机配套钢架克服土建不平整，以减少整机噪声及振动。

1, hoist includes motor, hoist, frame, protective cover and so on; adopts the three stage deceleration way, uses the screw to pay the transmission, the output turns the distance to be bigger. The hoisting machine supporting steel frame overcomes the unevenness of the civil construction, so as to reduce the noise and vibration of the whole machine.

2、采用户外型长时工作制电机，防护等级≥IP55。行程控制机构采用十进制计数器原理，控制行程的误差0.5%。转距保护控制是通过蜗杆产生轴向位移触动微动开关，来达到保护电器的原理。

2, adopt outdoor long time working motor, the protection level is more than IP55. The travel control mechanism adopts the decimal counter principle to control the error of the stroke 0.5%. The distance protection control is to achieve the principle of protecting the electrical appliance through the axial displacement of the worm to touch the micro switch.

3、操作维护简便，可实现现场和远控操作。

3, operation and maintenance is simple, and can realize on-site and remote control operation.

操作规程

Operating procedures

1．工程施工单位，要将启闭机应安装在平整坚实、视野良好的地基之上，机身和地锚必须牢固。要求启闭机与导向滑轮中心线应垂直对正，启闭机距离滑轮一般应不小于十五米。

1. the construction unit should install the hoist in a smooth and solid foundation with good view, and the fuselage and anchor must be firm. The central line of the hoist and the guide pulley should be perpendicular to the center, and the distance between the hoist and the pulley should not be less than fifteen meters.

2．在调装作业前，应检查钢丝绳、离合器、制动器、保险棘轮，传动滑轮等，确定安全可靠，方可操作。钢丝绳在卷筒上必须排列整齐，作业中最少需保留三圈。在作业时，不准有人跨越启闭机的钢丝绳经防止出现意外。

2. before adjusting operation, check the wire rope, clutch, brake, safety ratchet, transmission pulley, etc., so as to ensure safety and reliability before operation. The wire rope must be arranged on the drum, and at least three circles should be retained in the operation. During operation, no one is allowed to cross the hoist's wire rope to prevent accidents.

3．在吊运重物需在空中停留时，除使用制动器外，并应用棘轮保险卡牢。操作时，严禁擅自离开岗位。

3. when lifting the heavy cargo needs to stay in the air, besides using the brake, it applies the ratchet safety card. At the time of operation, it is forbidden to leave the post without authorization.

4．工作中要听从指挥人员的信号，信号不明或可能引起事故时，应暂停操作，待弄清情况后方可继续作业。作业中突然停电，应立即拉开闸刀，并将运送物件放下。

4. in the work, we must obey the signal of the commanding officer. When the signal is unknown or may cause an accident, we should suspend the operation. When the operation is suddenly cut off, the knife should be opened immediately and the delivery objects should be put down.