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Tunneling machine and auxiliary excavation device for tunneling machine

A technology for roadheaders and driving devices, which is applied in the field of tunnel boring machines and auxiliary excavation devices for roadheaders, can solve problems such as poor stability of crushing heads, and achieve the effects of improved stability, good stability, and convenient installation and adjustment

Pending Publication Date: 2022-01-07
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an auxiliary excavation device for a roadheader, which is used to solve the technical problem of poor stability of the crushing head of the current auxiliary excavation device for a roadheader; in addition, the purpose of the present invention is to provide a A tunnel boring machine using the above-mentioned auxiliary excavation device for the boring machine, for improving the stability of the tunnel boring machine

Method used

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  • Tunneling machine and auxiliary excavation device for tunneling machine
  • Tunneling machine and auxiliary excavation device for tunneling machine
  • Tunneling machine and auxiliary excavation device for tunneling machine

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specific Embodiment 1

[0060] The tunnel boring machine of the present invention is a non-circular tunnel boring machine, which is applied to the excavation of tunnels with rectangular sections, horseshoe-shaped sections or other special-shaped sections (non-circular sections).

[0061] like Figure 1 to Figure 5 As shown, the non-circular tunnel boring machine includes a frame, a driving cutterhead 2 and an auxiliary excavation device 3 for the roadheader, and the auxiliary excavation device 3 for the roadheader includes a mount 31 installed on the frame, a crushing device 32, Swing arm drive mechanism. The frame includes a boring machine partition 11 arranged on the rear side of the boring cutter head 2 . The mounting seat 31 is fixed on the dividing plate 11 of the roadheader.

[0062] The crushing device 32 includes a swing arm 321 , a crushing head 322 rotatably arranged on the swing arm 321 , a driving device for driving the crushing head 322 to rotate, and a crushing rod connecting the crus...

specific Embodiment 2

[0084] The specific embodiment 2 of the tunnel boring machine of the present invention only differs from the foregoing embodiments in that:

[0085] In this embodiment, the space inside the roadheader is limited, and the telescopic drive cylinder cannot be arranged. like Figure 6 to Figure 8 As shown, in this embodiment, the swing arm drive cylinder 33 is located at the front side of the guide seat 34 . The guide seat adjustment structure includes an adjustment seat 36, the adjustment seat 36 has an adjustment surface 361, the guide seat 34 is provided with a fitting surface that fits with the adjustment surface, and the attitude of the guide seat 34 is adjusted by changing the posture of the adjustment surface 361 of the adjustment seat 36 . The adjustment seat 36 is fixed with the installation seat 31 and the guide seat 34. In this embodiment, the adjustment surface 361 is an inclined surface. By replacing the adjustment seat 36 and changing the inclination angle of the ...

specific Embodiment 5

[0089] Concrete embodiment 5 of the tunnel boring machine of the present invention, the driving mechanism of the guide seat in the above embodiment drives the guide seat to move in a circular arc around the spherical center of the spherical joint structure, the difference between this embodiment and the above-mentioned embodiment is only: the driving mechanism of the guide seat Drive the guide seat to move in a straight line, and at this time, a certain angle of swing should be allowed between the guide groove on the guide seat and the swing arm.

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Abstract

The invention relates to the field of tunneling equipment with a drilling or cutting tool, in particular to a tunneling machine and an auxiliary excavation device for the tunneling machine. The auxiliary excavation device for the tunneling machine comprises an installing base, a crushing device and a swing arm driving mechanism, wherein a spherical hinge structure is arranged on a swing arm, the swing arm is installed on the installing base through the spherical hinge structure, a guiding base is used for guiding the swing arm, and when the swing arm driving mechanism exerts acting force on the swing arm to enable the swing arm to move, the swing arm swings in a reciprocating mode relative to the guide base under the guiding effect of the guide base. According to the tunneling machine and the auxiliary excavation device for the tunneling machine, the guiding base is arranged, the swing arm can be guided through the guiding base, when the swing arm driving mechanism drives the swing arm to move, the swing arm is not prone to shaking under the guiding effect of the guiding base, stability is better, the requirement for the swing arm driving mechanism is lowered, and the technical problem that a crushing head of an auxiliary excavation device for an existing tunneling machine is poorer in stability is solved.

Description

technical field [0001] The invention relates to the field of excavation equipment with drilling or cutting tools, in particular to a tunnel boring machine and an auxiliary excavation device for the boring machine. Background technique [0002] Tunnels with circular cross-sections generally excavate the entire cross-section by using a roadheader with a circular cutter head. The area swept by the cutter head around the central axis is the circular tunnel cross-section. For other special-shaped section (non-circular section) tunnels, a non-circular tunnel boring machine with multiple circular cutter heads is often used to excavate the tunnel section. Since the area swept by multi-cutter excavation often cannot cover the entire tunnel section, the excavation rate of multi-cutter combination is generally 88%~90%, and the area that cannot be covered by multi-cutter combination excavation is the cutter head Excavation of the blind area, the excavation of the blind area has a great...

Claims

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Application Information

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IPC IPC(8): E21D9/10
CPCE21D9/1006E21D9/1013E21D9/1093E21D9/1086
Inventor 董艳萍袁征贾连辉贺开伟范磊刘娇薛广记闫扬义万国伟刘恒杰张子傲
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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