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Tunneling machine, cutting portion thereof and cutting method

A technology of roadheader and cutting section, which is applied in earthwork drilling, mining equipment, tunnels, etc. It can solve the problems of small diameter change, difficult maintenance and gear replacement, small tunnel diameter, etc., and achieves a large variable range and realizes Reaming operation, to achieve the effect of maintenance

Active Publication Date: 2016-05-25
SANY HEAVY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the problems of small change in the diameter of the cut tunnel section and the small diameter of the formed tunnel, the inconvenience of personnel entering the front of the construction, the difficulty of maintenance and gear replacement, and the low cutting efficiency

Method used

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  • Tunneling machine, cutting portion thereof and cutting method
  • Tunneling machine, cutting portion thereof and cutting method
  • Tunneling machine, cutting portion thereof and cutting method

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Embodiment Construction

[0020] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] Combine below Figure 2 to Figure 4 , the preferred embodiment of the present invention will be further described in detail, and a cutting part of a roadheader in this preferred embodiment will be taken as an example.

[0022] like figure 2 As shown, a roadheader cutting section includes a front hob installed on the front of the cutter head 100, the front hob includes a first front hob 11 and a second front hob 12, and a plurality of first front hobs 11 The plurality of second front hobs 12 are arranged side by side in the direction of the Y axis, and the rotation axes of the first front hobs 11 and the rotation axes of the second front hobs 12 are perpendicular to each other. The rota...

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Abstract

The invention discloses a cutting portion of a tunneling machine. The cutting portion is characterized in that front-surface hobbing cutters are mounted on the front surface of a cutter head, a cutter arm support is mounted on the back surface of the cutter head, a first retractable cutter arm, a second retractable cutter arm, a third retractable cutter arm and a fourth retractable cutter arm are mounted on the cutter arm support, and chamfering hobbing cutters are mounted on the first retractable cutter arm, the second retractable cutter arm, the third retractable cutter arm and the fourth retractable cutter arm; the first retractable cutter arm and the second retractable cutter arm are respectively parallelly retractably arranged along the positive and negative directions of an X axis, the third retractable cutter arm and the fourth retractable cutter arm are respectively parallelly retractably arranged along the positive and negative directions of a Y axis, and the rotation axis of the cutter head is perpendicular to a plane formed by the X axis and the Y axis. The invention further discloses the tunneling machine and a cutting method. The cutting portion, the tunneling machine and the cutting method have the advantages that the diameter of the cutting portion of the tunnel machine can be varied, so that the diameters of the sections of tunnels can be varied, chamfering operation can be implemented, and the cutting portion and the tunneling machine are high in variable amplitude; the chamfering diameters are large, so that personnel can assuredly pass the tunnels, and maintenance and gear replacement can be implemented.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a cutting part of a roadheader, a roadheader and a cutting method. Background technique [0002] The cutting part of the roadheader is one of the most important components of the roadheader, and it is a rock-breaking tool for cutting rock walls. In order to reduce the vibration of the cutter head and reduce the noise, the CN201310285359 patent discloses "a design method for a segmented cutting cutter head of a retractable multi-blade expanding hob". [0003] like figure 1 As shown, the cutter head still retains the original positive hob 4 and center hob 7, removes all the side hobs at the edge of the original cutter head, and installs the first, second, and third retractable multi-blade expansion hobs respectively. Components 2, 5, 10. The first, second and third telescopic multi-blade expanding hob assemblies 2, 5 and 10 all include a telescopic multi-blade expanding hob ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/10
CPCE21D9/1093
Inventor 杜鑫
Owner SANY HEAVY EQUIP
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