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...

Examples

Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] see figure 1 , figure 2 with image 3 , the present invention mainly includes a hob end cover dismounting device and a hob bearing outer ring dismounting device. The hob end cover dismounting device is composed of a first hydraulic cylinder 16 placed horizontally, a hydraulic cylinder mounting seat 17, a ratchet lever 14, a pawl 13, a positioning hole 20 and a ratchet disc 12. The bottom of the first hydraulic cylinder 16 is welded to The hydraulic mount 17 on the platform base 8 is hinged by the first pin 19, the piston rod of the first hydraulic cylinder 16 and one end of the ratchet rod 14 are hinged by the second pin 15, and the second pin 15 can be easily disassembled. The first hydraulic cylinder 16 is equipped with a pressure gauge, which can detect the working pressure of the first hydraulic cylinder 16 in real time. When the...

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...

Examples

Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] see figure 1 , figure 2 with image 3 , the present invention mainly includes a hob end cover dismounting device and a hob bearing outer ring dismounting device. The hob end cover dismounting device is composed of a first hydraulic cylinder 16 placed horizontally, a hydraulic cylinder mounting seat 17, a ratchet lever 14, a pawl 13, a positioning hole 20 and a ratchet disc 12. The bottom of the first hydraulic cylinder 16 is welded to The hydraulic mount 17 on the platform base 8 is hinged by the first pin 19, the piston rod of the first hydraulic cylinder 16 and one end of the ratchet rod 14 are hinged by the second pin 15, and the second pin 15 can be easily disassembled. The first hydraulic cylinder 16 is equipped with a pressure gauge, which can detect the working pressure of the first hydraulic cylinder 16 in real time. When the...

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