Tower crane and platform supporting device thereof

Abstract

The invention discloses a platform supporting device of a tower crane, and the platform supporting device comprises a transverse pipe (21) of which the upper surface is fixed on a crane platform (3); and the connecting end of the transverse pipe is installed in a machine body of the tower crane. The platform supporting device also comprises a vertical pipe (22) and a supporting pipe (23); the upper end of the vertical pipe is connected with the transverse pipe; one end of the supporting pipe is connected with the vertical pipe, and the other end of the supporting pipe is connected with the transverse pipe; and the transverse pipe, the vertical pipe and the supporting pipe are of integral structures. The platform supporting device has the beneficial effects that as the connecting end of the transverse pipe of the platform supporting device is only required to be connected with the machine body, a connecting point is reduced, so that the requirement on the machining size accuracy of a part is reduced, the machining difficulty is reduced, and the production cost is saved; and meanwhile, the platform supporting device is only required to be integrally installed on the machine body in the disassembly and the assembly processes, so that the disassembly and assembly processes are simple. The platform supporting device discloses the tower crane comprising the platform supporting device.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a platform support device for a tower crane. The present invention also relates to a tower crane comprising the above-mentioned platform support device. Background technique [0002] With the rapid development of my country's economic construction, the market demand for construction machinery, especially various cranes, is increasing. [0003] Tower crane, also known as tower crane, is a kind of full-turn rotating jib crane with tower structure. Tower crane is widely used in the field of construction engineering due to its advantages of large tonnage and high lifting height. A tower crane usually has a platform for personnel to perform inspection and maintenance work, and a platform support device for installing the platform on the fuselage and supporting the platform. [0004] Please refer to figure 1 , figure 1 It is a schematic structural diagram of a traditional platf...

AI Technical Summary

Problems solved by technology

[0008] There are three connection points between the bracket type platform support device and the crane body: the connection between the horizontal tube 14 and the body, the connection between the strut 15 and the body, and the connection between the strut 15 and the horizontal tube 14; The connection has the size of the holes between each other. As a simple platform support device, it is necessary to ensure a lot of unnecessary high-precision dimensions. Too many connection points lead to higher manufacturing precision requirements for each component, which increases the Manufacturing difficulty; meanwhile, in the installation and connection process of the above-mentioned platform support device, it is necessary to install the horizontal tube 14 on the body with the first pin shaft 13, hang it with a crane, and then install the strut 15 on the body , and then align the connection holes between the horizontal tube 14 and the strut 15, and connect the horizontal tube 14 and the strut 15 with the third pin 17, and finally the crane can be released. The installation and disassembly process is cumbersome and difficult to install ;In addition, in the long-term use process, due to the compression deformation of the bracket, the entire platform will tilt to the outside of the main machine, resulting in a greater safety hazard for the staff when walking on it

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