A roof lifting device

Abstract

The invention relates to a roof lifting device. The device comprises a base, an upper rotary table is arranged on the base, and is connected with a tower frame, a lifting mechanism, an amplitude variation mechanism, a rotation mechanism and an electrical control system are mounted on the upper rotary table, the lifting mechanism, the amplitude variation mechanism and the rotation mechanism are each provided with a safety protection device, and the tower frame comprises a lifting arm and a supporting rod which are connected with the upper rotary table; one end of the supporting rod is connected with the upper rotary table, the other end of the supporting rod is connected with a tower cap and one end of a pull rod, one end of the lifting arm is connected with the upper rotary table and the other end of the tower cap, the other end of the lifting arm is connected with the other end of the pull rod, a backward-inclining-prevention device and a ring type weight limiter are arranged on the lifting arm, a rotation bearing device is arranged on the rotation mechanism, a balance arm connected with the lifting arm is arranged on the upper rotary table, and a balance weight device is arranged on the balance arm. The roof lifting device is good in safety, convenient to operate, good in wind resistance capacity, good in stability, good in sensitivity and reliability, stable in speed and convenient to place.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and in particular relates to a roof lifting device. Background technique [0002] At present, in the process of building construction, the traditional roof lifting devices often have the following problems: (1) The fuselage is bulky, the force is unbalanced, the bearing capacity is small, and the structural deformation is large; (2) The scope of application is limited, which is not convenient for narrow The construction of the site and the installation of heavy objects are in place; (3) the safety is poor, the sight is not good, and the operation is inconvenient; (4) the maintenance is cumbersome; (5) the wind resistance and stability are poor; (6) sensitive Poor reliability; (7) Unstable speed and inconvenient positioning. [0003] The patent number is "ZL201220187781.6", the authorized announcement number is "CN202575758U", and the Chinese utility model patent named "a roof cr...

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Problems solved by technology

[0002] At present, in the process of building construction, the traditional roof lifting devices often have the following problems: (1) The fuselage is bulky, the force is unbalanced, the bearing capacity is small, and the structural deformation is large; (2) The scope of application is limited, which is not convenient for narrow The construction of the site and the installation of heavy objects are in place; (3) the safety is poor, the sight is not good, and the operation is inconvenient; (4) the maintenance is cumbersome; (5) the wind resistance and stability are poor; (6) sensitive Poor reliability; (7) Unstable speed and inconvenient positioning

It also has problems such as poor safety, poor line of sight, inconvenient operation, cumbersome maintenance, poor wind resistance and stability, poor sensitivity and reliability, unstable speed, and inconvenient positioning.

[0005] Generally speaking, some existing roof lifting devices have the following problems: (1) The fuselage is bulky, the force is unbalanced, the bearing capacity is small, and the structural deformation is large; (2) The scope of application is limited, which is not convenient for construction in narrow sites (3) poor safety, poor sightlines, and inconvenient operation; (4) cumbersome maintenance; (5) poor wind resistance and stability; (6) relatively sensitive and reliable Poor; (7) Unstable speed and inconvenient positioning

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