Title:
CUTTER HEAD FOR TUNNELING EQUIPMENT AND TUNNELING EQUIPMENT HAVING CUTTER HEAD
Document Type and Number:
WIPO Patent Application WO/2024/061339
Kind Code:
A1
Abstract:
A cutter head for tunneling equipment, comprising a base (10) and a cutter. The base can rotate around a rotation axis (AX1) in a tunneling direction of the tunneling equipment; the cutter comprises a plurality of radial hob groups arranged at intervals in a circumferential direction defined with respect to the rotation axis, and each radial hob group comprises a plurality of radial hobs (21) arranged from the rotation axis and in a radial direction defined with respect to the rotation axis, wherein a rotation axis (AX2) of each radial hob is perpendicular to the rotation axis of the base; the radial hobs in each radial hob group retreat in the tunneling direction by a predetermined distance relative to the adjacent radial hobs located on the radial inner side, so that the front ends of all the radial hobs in the radial hob group can be located on the same fitting arc. The hobs of the cutter head form an arc profiling fitting curve, can well adapt to the arc-shaped structure of a main tunnel segment, and are suitable for cutting operation for the main tunnel segment in the process of mechanical method connection channel construction; hob shafts are uniform in stress, thereby avoiding eccentric wear, and prolonging the service life. The present invention further relates to tunneling equipment having the cutter head.
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Inventors:
ZHU HUAN (CN)
ZHU YAOHONG (CN)
HU RUIGUANG (CN)
ZHU YAOHONG (CN)
HU RUIGUANG (CN)
Application Number:
PCT/CN2023/120631
Publication Date:
March 28, 2024
Filing Date:
September 22, 2023
Export Citation:
Assignee:
NINGBO YONGGONG TECH CO LTD (CN)
International Classes:
E21D9/11
Domestic Patent References:
| WO2018103535A1 | 2018-06-14 |
Foreign References:
| CN216406811U | 2022-04-29 | |||
| CN115584988A | 2023-01-10 | |||
| CN111663949A | 2020-09-15 | |||
| CN205206834U | 2016-05-04 | |||
| CN208918540U | 2019-05-31 | |||
| CN209067213U | 2019-07-05 | |||
| CN212985223U | 2021-04-16 | |||
| CN213775388U | 2021-07-23 |
Attorney, Agent or Firm:
KING & WOOD MALLESONS (CN)
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