Platform for disassembling and assembling disc hob

Abstract

The invention discloses a platform for disassembling and assembling a disc hob used in the field of tunnel engineering, which comprises two parts, namely a hob end cover disassembly and assembly device and a bearing outer ring disassembly and assembly device. The bottom end of a hydraulic cylinder of the hob end cover disassembly and assembly device is hinged with a hydraulic supporting seat fixed on a base of the platform, a ratchet rod is hinged with a piston rod of the hydraulic cylinder, the other end of the ratchet rod is hinged to a cutter shaft of the hob placed in a positioning hole, a pawl is hinged to one pin shaft at the middle part of the ratchet rod, the pawl is engaged with teeth of a ratchet, and four positioning columns of the ratchet are placed in four holes of an end cover. The bearing outer ring disassembly and assembly device is characterized in that the hydraulic cylinder is fixed in the middle of a portal crossbeam, the lower end of the hydraulic cylinder is provided with a pressure plate, and a positioning ring is welded to the base of the platform and is concentric with the hydraulic cylinder. A bearing pressing-out plate and a bearing pressing-in barrel are used during pressing out and pressing in respectively. The platform device is simple and can be convenient to implement the disassembly and assembly of the disc hob.

Description

technical field [0001] The invention relates to an assembly and disassembly platform of a shield hob used in the field of tunnel engineering, in particular to the mechanized installation and disassembly of an end cover and a bearing outer ring of a disc hob. Background technique [0002] The 21st century is the century of rapid development of China's engineering construction. There will be a large number of long and large tunnels to be built in railways, highways, large and medium-sized hydropower stations, and South-to-North Water Diversion Projects. Metro projects, municipal projects, and river-crossing tunnels in modern city construction are also keep growing. Due to the increasingly mature technology and the advantages of pollution-free construction, safety and reliability, shield tunneling machines have gradually become the first choice of construction units. The performance of the tool and the correct use in construction are closely related to the speed and cost of tu...

AI Technical Summary

Problems solved by technology

At present, when the hob users are maintaining the hob, they mostly use some tools such as kilogram wrenches to disassemble and repair manually, which consumes a lot of manpower and time resources, and the workload is very large. It is extremely large; even in some cases, it is impossible to disassemble and install the cutter manually, and it must be disassembled by external force, so it is imperative to find a mechanized and automated hob disassembly method

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