Grúa de torre de Liebherr de sección de mástil de 120HC

Especificación de productos

Tipo, modelo: sección de mástil 120HC para grúa de torre Liebherr

Tamaño: 1.8mx1.8mx2.5m

Uso para: Liebherr Tower Crane

Materiales: Q345B

Dentro de los pernos, escalera, plataforma

Proceso: busting derusting,

Pintura: Bajo pintura, Pintura media, Pintura de superficie.

Nuestra fábrica produce y suministra casi todas las famosas grúas de torre: sección de mástil, marco de anclaje, ángulo de fijación, adaptador, etc., de buena calidad y precio.

Grúa de torre de Liebherr de sección de mástil de 120HC

Conocimiento de la grúa torre:

Esquema de demolición de la grúa torre QTZ63: trabajos de preparación, proceso de demolición, medidas técnicas de seguridad

2. Instale 3 marcos de portal para quitar los componentes de la grúa torre.

1) a ambos lados del bloque de contrapeso del brazo de contrapeso, se utilizan como columnas dos tubos de acero de 6 m de alto y 250 mm de diámetro.

La boca inferior está soldada al hierro incrustado en el piso, y dos lados opuestos del acero del canal 20 se usan como vigas, que se sueldan a la placa de hierro en la parte superior de la columna.

El marco del portal está hecho para eliminar el contrapeso y el brazo de contrapeso. 16. En todos los lados del marco de la puerta, use el cable de acero phi 12 como cable para enrollar y apriételo con el perno azul patrón; La viga del marco del portal solo se puede instalar cuando el brazo de balanceo de la grúa torre cae a menos de 5 m del techo. - 3 -

2) en la sección estándar de la grúa torre QTZ63 en ambos lados con una altura de 7,5 m (sección estándar de cinco elevadores de construcción) como pilar, columna debajo de la boca con tornillos de pared para conectar al piso, con 20 canales de acero a través de los Soldadura radicular como una viga.

 The beam center to a pulley, and the pillar top plate welding, make the door frame, used to remove the tower cap, cab, turning up and down, the standard section and climb, climb inside frame girder, etc.; 16. The type frame USES the phi 12 steel wire rope to make the cable wind rope four sides, and USES the flower blue bolt to tighten.

120HC Mast Section Liebherr Tower Crane

3) in the jib 26 m on both sides with two 3 m high and 250 cm diameter steel pipe for pillar, column under the mouth and floor embedded iron welding, from 1.2 m floor with a piece of 20  channel steel and column welded into a beam, the tower crane jib front-end shelved after falling on the door frame beams.

So that the lift arm loose tie rod is not force, convenient remove the tie rod.

3. Disassembly process

Position of tower crane arm can rotate to remove - climbing tower crane block bottom from the roof is the drop in the overall balance of 0.6 m to remove the hook, rope, cars and counter weight to fall another type tower crane to hoist boom forearm aside on the door frame of three beam descending again the balance of its arms to the roof to stop

 Removing the gibbet rod to remove the jib, remove the balance arm bars - remove the balance arm - remove the cab, hoist and distribution box to remove the tower cap, remove the rotary tower to remove the upper and lower bearings, remove the basis and the standard of the tower section section - > remove crawl within the steel beam and frame.

120HC Mast Section Liebherr Tower Crane

4. Horizontal movement of parts on the floor

After the parts of the tower crane are lifted to the floor, steel pipes are placed below the parts, which are pulled by the 3t hoist or manually pushed to complete the horizontal movement, so that the parts of the tower crane are moved to the designated place one by one.

Installation of the mast crane

1) after the completion of the fabrication of the mast crane, the welding parts of each part shall be inspected for flaw detection.

Order: 2) mast crane installation base - > install base four balance arm and roofing of concrete girder bolted to install rotary bearing, installation of tower mast crane to install mast crane four inclined strut,

The use of tower crane installation mast crane boom - using the tower crane boom of the installation of two tension rod .

3) install the hoist removed from the tower crane and wear the steel wire rope to draw the rod.

4) install the power distribution box and cab removed from the tower crane and switch on the power.

120HC Mast Section Liebherr Tower Crane

5) test run.

(4) lowering process of tower crane parts from the top surface

1) lower lifting process: lower weight block lower lifting boom lower balancing arm lower tower cap lower tower slalom body lower tower upper and lower support standard section of lower tower body lower foundation section, steel beam and internal climbing frame, etc.

2) carefully check whether each part of the mast crane is in normal operation before lowering the parts. If any defect is found, it shall be dealt with in time.

3) try to mourn: before the hanging from the floor and tower crane parts to the mast crane hoisting test, under the mast crane hoisting test process: start the winch to lift a weight of 6 t object, the object hanging from the ground about 10 cm, is it suspended around 15 min, carefully observe the mast crane every part is normal, check the rear can be carried out under normal work. - 5 -

4) hang counter weight: use hoist level mobile counter weight system be moved to the specified location, with the mast crane hook will be the counter weight hanging from the floor 2 m high.

Human push the mast crane turning its boom in the down position, with the steel wire rope fixed on both sides of derrick, in case the process or swing boom to turn right or left, the last under the counter weight.

5) lower hoisting boom and balancing arm: decompose the lifting boom and balancing arm and use 3t hoist system to move them horizontally to the mast hoisting position and then lower them to the ground.

To prevent the lifting boom or balancing arm from hitting the glass curtain wall, the lifting point is set at two thirds of each decomposed lifting boom or balancing arm.

6) lower tower lifting cap: as the height of the tower cap is relatively high, the lifting point is two-thirds of the height of the tower cap.

7) lower hanging rotary tower body, upper and lower support, standard section of tower body, steel beam and internal climbing frame, etc.

8) remove the hoist, distribution box and cab: after all parts of the tower crane are lifted to the ground, remove the hoist, distribution box and cab and transport them from the construction hoist to the ground.

Because the hoist is heavy, it needs to be disassembled into three parts before it can be transported from the construction hoist.

9) disassemble the mast crane: the order of disassembly is to disassemble the hook, wire rope disassemble the hanger rod of the mast crane disassemble the four inclined poles of the mast crane tower disassemble the tower body disassemble the slewing support disassemble the base disassemble the four balance arms of the base.

After all parts and components of the mast crane are disassembled, they will be transported from the construction elevator to the ground construction elevator. Each part of the mast crane shall not exceed 3m in length and 2t in weight.

10) the tower crane parts of the lower crane shall be matched with the 25t truck crane on the ground, and shall be loaded and transported in time for the next part to be lowered.

Precautions and safety technical measures for tower crane removal

Liebherr Tower Crane

71EC-B5FR FR TRONIC  Mast section 
85EC-B5  Mast section 
85EC-B5 FR TRONIC  Mast section
110EC-B6  Mast section 
110EC-B6 FR TRONIC  Mast section 
130EC-B6  Mast section 
130EC-B8 FR TRONIC  Mast section
150EC-B6 LITRONIC  Mast section 
150EC-B6 FR TRONIC  Mast section 
150EC-B8 LITRONIC  Mast section 
150EC-B8 FR TRONIC  Mast section 
172EC-B8 LITRONIC  Mast section 
202EC-B10 LITRONIC  Mast section 
250EC-B12 LITRONIC  Mast section 
285EC-B12 LITRONIC  Mast section 
380EC-B12 LITRONIC  Mast section 
380EC-B16 LITRONIC  Mast section 
1000EC-B100 LITRONIC  Mast section 
1000EC-B125 LITRONIC  Mast section 
200EC-H10 LITRONIC  Mast section 
280EC-H12 LITRONIC  Mast section 
280EC-H16 LITRONIC  Mast section 
550EC-H20 LITRONIC  Mast section 
550EC-H40 LITRONIC  Mast section
630EC-H40 LITRONIC  Mast section 
630EC-H50 LITRONIC  Mast section 
630EC-H70 LITRONIC  Mast section 
1000EC-H40 LITRONIC  Mast section 
1000EC-H50 LITRONIC  Mast section 
180HC-L8/16 LITRONIC  Mast section 
280HC-L12/24 LITRONIC  Mast section 
280HC-L16/28 LITRONIC  Mast section 
357HC-L12/24LITRONIC  Mast section 
357HC-L18/32 LITRONIC  Mast section
542HC-L12/24 LITRONIC  Mast section 
542HC-L18/36 LITRONIC  Mast section 
710HC-L25/50 LITRONIC  Mast section 
710HC-L32/64 LITRONIC  Mast section 
1250HC40  Mast section 
1250HC50  Mast section 
2000HC60  Mast section 
3150HC60  Mast section 
3150HC70  Mast section 
4000HC70  Mast section 
4000HC80  Mast section 
4000HC100  Mast section 
5000HC80  Mast section 
32TTR  Mast section  

100 LC 6  Mast section 
154 EC-H 6 Litronic Mast section 
180 EC-H 10 Litronic  Mast section 
1800 C 60  Mast section 
200 HC 10  Mast section 
290 HC 12  Mast section 
316 EC-H 12  Mast section 
316 EC-H 12 Litronic  Mast section 
390 HC 16  Mast section 
420 EC-H 16  Mast section 
630 EC-H 20 Litronic  Mast section
630 EC-H 20 Litronic  Mast section 
850 C 20  Mast section 
1000 EC-H 40 Litronic  Mast section