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High-pressure water jet assisted cutting mechanism for heading machine
High-pressure water jet assisted cutting mechanism for heading machine
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机译：掘进机高压水射流辅助切割机构
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摘要
A high-pressure water jet assisted cutting mechanism for a heading machine comprises a drive apparatus (1), a reducer (2), a cutting arm (3), a cutting head (4), a built-in inner spray and high-pressure water delivery system (5) all sequentially connected. The drive apparatus (1) comprises a motor, a connection frame (1-3) and an output shaft I (1-4). The reducer (2) comprises: a reducer casing, a coupling sleeve (2-1), a sun shaft I (2-2), a first stage planet carrier, a sun shaft II (2-3), a second stage planet carrier, and an output shaft II (2-4). The cutting arm (3) comprises a main spindle (3-1), a housing (3-2), and a connection flange (3-3). The cutting head (4) comprises hydraulic cutting tooth assemblies (4-1), a nozzle (4-2), and a cutting head welding assembly (4-3). The inner spray and high-pressure water delivery system (5) comprises a spray water input duct (5-1), a high-pressure water input duct (5-2), a spray water path (5-3), a high-pressure water pipe (5-4), a spray water output duct (5-5), a high-pressure water output duct (5-6), a spray chamber (5-7), and a high-pressure water chamber (5-8). Based on keeping an inner spray system, high-pressure water is introduced, the layout is proper, the structure is compact, and the objectives of improving efficiency, reducing work dust, and extending service life of a cutting tool are achieved.
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