How to raise the tower crane, how to raise the tower crane

The lifting of the tower crane is realized by a set of jacking devices. This set of jacking device mainly includes jacking sleeve, jacking beam and hanging shoe, hydraulic system, introduction trolley and introduction beam and other components. The sleeve frame is an important part of the tower crane jacking.

The shape is a square cross-section, which is sleeved on the outside of the standard section of the tower body when used, and the upper four corners are connected with the lower bearing of the pin and the slewing lower support of the tower crane. The sleeve frame is also provided with lugs and is connected with the jacking cylinder. The middle part of the sleeve frame is provided with a supporting climbing claw, which is used for supporting the sleeve frame when jacking.

The jacking beam is a component used to support the weight of the upper part of the tower crane during jacking, and is connected with the lower part of the jacking cylinder on the one hand. On the one hand, its two sides are supported on the tread of the standard section by hanging boots. so as to step backwards.

The introduction trolley, the hook and the introduction beam are located in the upper part of the tower crane, and it is the hoisting and sliding track of the introduction standard section. The hydraulic system consists of a jacking cylinder and a hydraulic power station.

As shown in the figure below, the animation is displayed when clicked.

When installing, the reinforcing standard section is installed at the bottom of the tower body, and then the tower crane and the tower crane are installed, and the balance arm and the crane arm are assembled on the ground of the construction site respectively for lifting and assembly, and the installation procedure is: strengthen the standard section jacket frame slewing bearing tower rise balance arm crane arm power supply debugging attached pull bracket, the upper standard section can be self-sufficient after the installation of the whole machine is completed.

The tower crane has a hydraulic device, first use the hydraulic device to lift the tower crane, and then lift the standard section to be installed under the torsion seat and then wear the pin, and so on.

Start the installation by the help of the truck crane, when the installation is completed by the tower crane self-help, the jacking part of the tower is lifted by the hydraulic oil pump, and then the tower crane lifts the standard section also called the tower to do the lifting, and the trolley pulls it to the lifting part to install it.

The self-elevating tower crane first installs the above part of the control room, and stands up with the help of the crane, and the tower body is a section of standard sections. There are four hydraulic cylinders under the control room (tower body sleeve), jack up the upper part after starting, and then add a standard section in the neutral below, so reciprocating, the tower crane will grow taller.

Fixed tower craneAccording to the different installation positions, it is divided into two kinds of attached self-elevating type and internal climbing type, and the attached self-elevating tower crane can rise with the building elevation, suitable for high-rise buildings, and the building structure only bears the horizontal load that comes from the tower crane, and the attachment is convenient, but the steel used in the occupied structure is more; The inward climbing tower crane is in the building (elevator shaft, stairwell), climbs with the help of a set of brackets and lifting systems, and the jacking is more cumbersome, but occupies less steel in the structure, does not need to install the foundation, and all the self-weight and load are borne by the building.

The foundation of the tower crane is usually fixed with concrete, and then the foundation can be installed with the foundation of the tower crane, which is also one of the core parts of the tower crane.

After being installed to a certain height, the tower crane itself has its own lifting sleeve frame, in the process of heightening or moving the object, the lifting sleeve frame will be moved up through personnel operation, and there will be a vacancy between the building and the lifting sleeve, and the object will be placed in this space, and the action of tower crane heightening is completed, and the height of the tower crane is also rising as the object continues to join.

1. Tower crane celery imitation filial piety is an indispensable tool in construction engineering, which increases with the continuous increase in the construction of buildings.

2. Use the lifting rope of the tower crane to send a standard section of the tower crane to the platform of the lifting section.

3. Remove the connecting bolts before the original standard of the tower crane, and take down the standard section next to the upper end of the lifting joint.

4. Use the hydraulic rod on the lifting joint to lift the entire lifting joint upwards until a slightly larger space than the standard section is vacated.

5. Use the pulley on the platform to send a standard section into the middle vacancy of the lifting section, adjust the position, and connect the upper and lower sections of the new standard section with the adjacent standard section with bolts.

1. Generally, the height of 25 type, 35 type 40 type is about 30 meters, and the height of 50 type 63 type is 36-40 meters! (The height of the single standard section is different, but the general difference is not too large) The independent height of the QTZ80 tower crane is meters.

2. The independent height is the height of the tower crane that does not rely on the building and can be independent. The attachment height is the height that can be attached to the building. The independent height refers to the total height of the standard section prepared by the tower crane at the factory!

3. Tower crane is the most commonly used lifting equipment on the construction site, also known as "tower type lifting machine", with a section of the length (height) (and spike referred to as "standard section"), used to lift the construction of steel bars, wooden flutes, concrete, steel pipes and other construction raw materials. Tower crane is an indispensable piece of equipment on the construction site.

When installing, the reinforcing standard section is installed at the bottom of the tower body, and then the tower crane and the tower crane are installed, and the balance arm and the crane arm are assembled on the ground of the construction site respectively for lifting and assembly, and the installation procedure is: strengthen the standard section jacket frame slewing bearing tower rise balance arm crane arm power supply debugging attached pull bracket, the upper standard section can be self-sufficient after the installation of the whole machine is completed.

Basically the tower crane itself is completed, the tower crane itself has a hydraulic lifting mechanism, when the height needs to be raised, the tower crane uses its own hydraulic mechanism to rise, and then lifts the standard section, puts it into the tower crane installation gap, and then fixes it with high-strength bolts, so as to complete the installation of each standard section.