Page 123 - 摩擦学学报2025年第8期

第 8 期 杨子腾, 等: 新型TBM螺旋槽滚刀磨损自锐性研究 1221

表 1 试验刀具使用情况统计表
Table 1 Statistical table on the use of test cutters
Dismantling
Line position Application cutterbox Mounting number Amount of wear/mm Mileage used/m Forms of wear
number
47# 1 314 13 1 708 709.2 Normal wear
50# 1 314 15 1 708 709.2 Normal wear
Left line
51# 1 314 15 1 708 709.2 Normal wear
54# 1 314 ̶ 1 411 174.6 Slight partial wear
48# 1 399 11 1 720 577.8 Normal wear
49# 1 399 11 1 720 577.8 Normal wear
Right line
50# 1 399 12 1 720 577.8 Normal wear
51# 1 399 12 1 720 577.8 Normal wear

②
Blade tooth

③ ①

(a) Comparison of spiral groove cutter profile before and after wear

A: worst wear and tear B: heavy wear and tear C: lower wear and tear
① ② ③ Depth of wear/mm
A 9
8
B C
7
B
6

5
4

(b) Depth of wear of blade teeth
Fig. 4 Comparison of cutter differences before and after wear
图 4 磨损前后螺旋槽滚刀轮廓差异对比和磨损量

最大外径为235.3 mm，相对试验前减少6 mm，磨损主 表现出最深的颜色，其次是刃齿边缘位置B区域，磨损
要发生在各个刃齿处，每个刃齿磨损量都较为接近， 深度约为6.5 mm，刃齿中间位置C区域颜色最浅，表
说明正常磨损是该滚刀的主要损伤形式. 图4(b)所示 明相对磨损深度最小，约为5.0 mm. 这说明螺旋槽滚
为随机选取的3个刃齿的磨损深度，对于每个刃齿，其 刀在该地层破岩过程中刃齿边缘，尤其刃角处被消耗
磨损最严重的位置为两刃角尖端A区域，约为8.80 mm， 最快，磨损最为严重.