CM351 main main component name
1 track assembly     10 travel once a gearbox    19 drill pipe
2 walking secondary gearbox      11 pressure reducing valve  20 hydraulic wrench
4 hydraulic control valve     12 boom swing cylinder   21 impactor                   Â
5 walking damper     13 drill arm  22 bit
6 oil pump control valve     14 carriage pitch and swing mechanism   23 positioner
7 frame swing cylinder control valve    15 compensation frame   24 impact damper
8 main damper   16 propulsion gearbox   25 boom lift cylinder
9 oil mister   17 carriage  26 frame floating cylinder
18 rotary machine  27 wet dust removal system
              working principle
The CM351 down-the- hole drilling rig is a full-pneumatic rock drilling machine with an air compressor that provides power to drive the air motor to perform various predetermined actions.
  The main damper is opened, the compressed gas passes through the oil mister, and the high pressure gas enters the control valve in an oil mist state. All the way directly into the impactor control valve without decompression, the other way through the pressure reducing valve to reduce the pressure into the air control valve, and then drive the motor to rotate.
  Pushing the travel damper, the travel motor starts, and after two decelerations, the whole machine advances, retreats, turns and other actions.
  The hydraulic pump control valve is opened, the oil pump motor is started, and the hydraulic valve is operated to control each cylinder, and the tilting and swinging of the drill arm can be completed. The tilting, swinging of the carriage and the swinging motion of the left and right tracks.
  Operate the impact damper to complete the impactor impact, feed, rotation, fast up and down movement and oil pump, pump start work.
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