TUNNELING MACHINE FOR PRODUCTION OF COARSE ROCK WITH FAST ROTATING MILLS Russian patent published in 2020 - IPC E21D9/10 

FIELD: machine building.

SUBSTANCE: present invention relates to devices of tunneling machine, and, in particular, relates to tunneling machine for development of solid rock with rotating mills. Tunneling machine comprises a frame equipped with hydraulic power plant and high-pressure abrasive jet feed device connected to this plant, gearbox is rigidly installed and located on one of the ends of frame, two sides of gearbox respectively have two input shafts and one output shaft. Input shafts are connected to planetary gearboxes, primary sides of planetary gearboxes are connected to cantilever disk drive motors, cantilever disk is attached to output shaft, four suspended brackets are hingedly connected to cantilever disk, additional cantilever drive motors providing control of angle of rotation of suspended brackets are located on cantilever disk. Rotary milling devices are located on ends of suspended brackets aside from cantilever disc, gear box additionally has rotary sealing devices, rotary sealing devices are connected to hydraulic power plant and high-pressure abrasive jet by pipelines. Cantilever disk drive motors are connected to hydraulic power plant by pipelines, and rotary milling devices and cantilever drive motors are accordingly connected to gearbox via pipelines.

EFFECT: safe, efficient and low-cost process of hard rock mass drilling due to reduction of equipment wear, increase of rocks destruction efficiency, reduction of dust content.

6 cl, 5 dwg