Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Eccentric multi-axial multi-cutter type tunnelling machine

A multi-cutter and roadheader technology, which is applied in mining equipment, earthwork drilling, tunnels, etc., can solve problems such as easy wear of cutters, large sliding distance of cutting heads, unfavorable long-distance tunneling, etc., and achieve the effect of maintaining stability

Inactive Publication Date: 2004-11-17
SHANGHAI TUNNEL ENGINEERING CO. LTD.
View PDF1 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is still a multi-axis single-cutter roadheader. For large-section and long-distance arbitrary section excavation, the one-way rotation of the single cutterhead is very easy to cause one-way deviation of the roadheader, which causes tunnel axis offset of
Due to the relatively large turning radius of the cutting cutter head, the sliding distance of the cutting head is also relatively large, and the cutter is easy to wear, which is not conducive to long-distance excavation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Eccentric multi-axial multi-cutter type tunnelling machine
  • Eccentric multi-axial multi-cutter type tunnelling machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] Such as figure 1 , figure 2 As shown, the present invention includes: cutting cutterhead 1, cutterhead drive 2, deviation correction device 3, screw conveyor 4, front section casing 5, rear section casing 6, base 7, eccentric shaft 8, and its connection mode is: cutting The cutterhead 1 is composed of two left and right cutterheads, which are located at the front end of the jacking pipe. Each cutterhead is connected to the four eccentric shafts 8 in the cutterhead drive system 2 through bolts, and the two screw conveyors 4 are respectively installed through bolts. On both sides of the front housing, the base 7 under the deviation correction device 3 connects the front housing 5 and the rear housing 6 .

[0012] Two oil cylinders 9 in the deviation correction device 3 are used as a group, and the two sides of each oil cylinder 9 are respectively fixed on the base 7 by pins, and the bases 7 on both sides are respectively welded to the front shell 5 and the rear shell 6 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention is a kind of eccentric multi spindle and multicutter development machine, which belongs to building mechanical field. It includes: cutting plate, cutter plate driver, cut-away device, spiral transmitter, the front shell, the back shell, a base, an eccentric shaft. The connecting mode is: the cutters plate is made up of left and right plates, which is at the far front of the top pipe, each cutter plate is connected to the four eccentric shafts in the driving system through bolts, the two spiral transmitters are set at the two sides of the front shell, the base under the cut-away connects the front shell and the back shell together. The invention can cut any cross section; it maintains the balance of clay pressure.

Description

technical field [0001] The invention relates to a roadheader for tunnel excavation, in particular to an eccentric multi-axis multi-cutterhead type roadheader for tunnel excavation, which belongs to the field of tunnel machinery. Background technique [0002] From the analysis of the function of the tunnel, the cross-sectional form of road tunnels, railway tunnels, subway tunnels, pedestrian tunnels, and underground common trenches is most suitable and economical. However, in the excavation process of rectangular tunnels, due to problems such as back soil and nose rotation, ground settlement control and tunnel axis control are more difficult than circular tunnel advancement. Major construction companies and shield manufacturers in Japan have developed and tested various types of mechanical rectangular shields, the most successful of which is the DPLEX rectangular shield developed by Ishikawajima Harima Heavy Industries, which is an eccentric multi-axis cutterhead cutting mach...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): E21D9/00E21D9/06
Inventor 王鹤林吕建中刘豫东宓佩明杨磊石元奇高国跃
Owner SHANGHAI TUNNEL ENGINEERING CO. LTD.
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com