Ask you a few questions about tower cranes. Thank you.

It is climbed up to the cab by an escalator inside the standard section. The tower crane is elevated. It can't be lengthened, and the lifting is to have a hydraulic pound, jack, and slowly lift upward.

Tower cranes of different heights, the original counterweight, no matter how high it rises, is unchanged. You can't do thunder, you can do it at night, but you have to have enough lighting...Give it points.

1.The driver climbed up from inside the standard section. 2. Use hydraulic pressure to jack up and then install the standard section. 3. There are breeding before and after. 4. It can be used, but it should be clear in sight. The signal is clear.

1. There is an escalator in the tower body section of the tower crane, and the driver can climb from the escalator of the tower body to the last section, and then there is a hole to climb to its arm, and the driver's operation room is in the position of the crane arm. Some drivers may climb from the scaffolding to the highest and then take a springboard to the tower, so that they can climb a few sections of the tower.

2. The lengthening of the tower crane should mean increasing the height. The tower body of the tower crane is composed of standard segments. When the height is not high enough to be raised, additional segments are added.

First of all, the tower crane will hang a section up, to the highest section of the tower crane (under the boom), and then receive this section to the closest place to the tower body, and then install the jack, the height of a section on the tower crane, and then pull the hanging section in, and then let go of the jack and screw the bolts.

3. The counterweight of the tower crane has nothing to do with the height of the tower crane, and the counterweight of the tower crane is usually based on the lifting capacity of the tower crane is usually how many tons and meters, that is, the product of the lifting weight and the length of the boom. Therefore, the counterweight of the tower crane is matched according to the length of the boom.

4. Tower cranes can be used in black weather, in fact, tower cranes are mainly controlled by the test command, many times the tower crane driver can not see or see the situation of the hanging object, rely on the command to use a whistle or walkie-talkie to command the rotation, the car is inward and outward, and the hook takes off and lands, so the black sky has no effect, but the thunderstorm weather is affected, and the windy weather seems to be above level 6 can not use the crane.

Combined with the scene, explain in detail the possible accidents and cause analysis of the tower crane, which is easy to understand.

The main problem is safety, and the tower crane talent network has frequently asked questions for reference.

1.The balance of the tower crane is not dependent on the traction of the steel rope to maintain the balance, to put it bluntly, there is no steel rope on the tower crane It can maintain balance, and its balance is only related to the design position and counterweight of the tie rod;

2.The position of the luffing on the boom can be adjusted, or the standard section can be hung on the hook, and the front and rear luffing can be changed to achieve the balance of the tower crane;

3.The luffing assembly is composed of a luffing motor and a mechanism, and the steel rope is driven by the motor to realize the luffing trolley moving forward and backward, and the lifting weight is only related to the amplitude (the position of the trolley on the boom).

He refers to the tower crane below 20 without a tie rod but with a wire rope instead of a tie rod, the tower crane must be heavier behind when not hoisting things.

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Tower crane is a tower crane (tower crane) referred to as tower crane, also known as tower crane, which originated in Western Europe.

A rotating crane with a boom mounted on the upper part of a towering tower. The working space is large, mainly used for the vertical and horizontal transportation of materials and the installation of building components in housing construction. It is composed of three parts: metal structure, working mechanism and electrical system.

The metal structure includes the tower body, the boom and the bottom leakage seat. The working mechanism has four parts: lifting, luffing, slewing and walking. The electrical system includes motors, controllers, power distribution cabinets, connecting lines, signals and lighting devices.

Tower crane driver introduction:

The tower crane driver is responsible for running the most commonly used lifting equipment on the construction site, with a section of the length (high), like a tower crane personnel, the main work is to lift the construction of steel bars, wooden flutes, scaffold pipes and other construction raw materials equipment. It is an indispensable equipment operator for building construction.

Information for tower crane driver registration:

1: 1 copy of ID card;

2: 4 sheets on white background;

3: A copy of Tong's junior high school education (it doesn't matter if there is one);

4: We don't charge for a good physical examination.

Precautions for tower crane driver registration certificate:

1. There are two kinds of certification departments for tower crane certificates, one is the vocational qualification certificate issued by the labor department, and the other is the certificate issued by the security department, which are generally very easy to obtain.

2. If you obtain the qualification certificate issued by the labor department, it is a proof that you are engaged in this type of work, you must first go to the local labor bureau training school to register, and then wait for the school's training arrangement, generally for a week of training, and then participate in the assessment of the skill appraisal department, and issue the qualification certificate after passing the assessment. **Around $600.

3. If you take the certificate of the security inspection department, it is generally the need of the construction project, the unit organizes the training examination, you need to register with the local safety supervision bureau, and then wait for the training notice of the security department, the training time is also about a week, and finally after the assessment, the security inspection and rock search certificate will be issued. <>

The common faults of tower cranes are generally divided into two categories: mechanical faults and electrical faults. The mechanical system cannot operate normally due to wear, deformation, fracture, jamming, poor lubrication and incorrect relative position of the mechanical parts, which is collectively referred to as mechanical failure. Due to the failure of electrical circuits, components, electrical equipment and power supply systems, etc., the power system cannot operate normally, which is collectively referred to as electrical faults.

Mechanical faults are generally more obvious, intuitive, and easy to judge. In the operation of tower cranes, it is more common. There are relatively many electrical faults, some faults are more intuitive and easy to judge than taking the balance, and some faults are more hidden and difficult to judge.

There are many reasons for the failure of tower cranes in the process of use, mainly because of the poor working environment, untimely maintenance, illegal operation of operators, natural wear and tear of parts and components.

In addition, accidents sometimes occur during the commissioning of the tower crane. When the tower crane is abnormal, the installation and dismantling workers, tower crane drivers and other operators should immediately stop the operation, and report to the relevant departments when the noise is coarse, and the full-time maintenance personnel will come to repair, and deal with them in a timely manner to eliminate hidden dangers and resume normal work.