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Huaxia tower craneAlso known as "tower crane", is a commonly used lifting equipment on construction sites. Used for lifting steel bars, wooden rods, concrete, steel pipes and other construction raw materials. With the extension of section by section (referred to as "standard section") (height). Huaxia tower crane is an essential equipment on the construction site.

The function of the tip of the Huaxia tower crane is to bear the upper load from the boom pull rope and the balance arm pull rope, and directly transmit it to the tower structure through the rotary tower, turntable, bearing seat and other structural components. Seen from the top of the tower, there are truncated cone column, forward or backward truncated cone column, herringbone frame and diagonal brace frame. All ofHuaxia tower craneAll need to set a balance weight, its role is to support the balance weight to form the balance moment required by the design, the balance moment is opposite to the lifting moment. In addition to the counterweight, its tail is often equipped with a lifting mechanism. The reason why the lifting mechanism and counterweight are placed together at the end of the balance arm is that it can play the role of a part of the counterweight, and the other is to increase the distance between the rope barrel and the spire guide wheel, which is convenient for the winding of the steel wire rope and avoids the phenomenon of disorderly rope. The consumption of weight is inversely proportional to the length of the balance arm, and there is a certain proportional relationship between the length of the balance arm and the length of the lifting arm. The balance weight is quite large. General light tower crane to at least 3~4t, heavy tower crane to nearly 30t.

Huaxia tower craneOperating Procedures

1. Before using Huaxia tower crane, check whether all metal structural components and appearance are in good condition, whether the sound is normal during no-load operation, whether the braking is reliable during heavy load test, whether all safety limits and protection devices are complete and in good condition, and whether the action is sensitive and reliable.

2. When operating each controller of Huaxia tower crane, it should be operated step by step, and it is strictly prohibited to operate beyond the gear. When changing the running direction, the operating handle should be reset to zero, and the reversing operation should be carried out after the motor stops running, so as to be stable. Rapid start-stop is prohibited.

3. When the equipment is running, if any abnormal situation is found in the machine, it should be stopped immediately for inspection, and the equipment can be operated only after troubleshooting.

4. Strict certification. Drink work is strictly prohibited. It is forbidden to use travel switch instead of parking. It is strictly forbidden to operate in violation of regulations and leave the post without permission or hand over the machine to others for driving.

5. When loading heavy objects, you should leave the ground for a certain distance, and check whether the brake is reliable before moving forward.

6. Adhere to the "ten" does not hang. After the operation, the power supply should be cut off, the box should be locked, and the mechanical "cross" operation should be done. The contents of the ten cranes are as follows:

(1) Do not hang diagonally.

(2) overload does not hang.

(3) Bulk goods are overpacked or not fastened or hung.

(4) No protective measures are taken to lift the edge of the load.

(5) people do not hang on the crane.

(6) Do not hang up if the command signal is unknown.

(7) No member buried in the ground shall be hoisted.

(8) Do not hang when the safety device fails.

(9) the light is dark, can not see the hanging thing.

(10) No gale above level 6.

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