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Método de funcionamiento la máquina de ROADHEADER

A. Traveling Mechanism
1. There are two operating sticks control the machine movement. Use the left stick to turn left and right stick to turn right. Show as picture 24.
2. The machine will move forward if you move the operating stick forward.
3. The machine will move backward if you move the operating stick backward.
4. When turning a corner, pull both of the operating sticks simultaneously in the direction opposite with the machine turning direction.
Note: When the corner is relatively narrow, note not to collide the frontal cutting head and the rear transporting machine with the nearby prop.
5. Tightening and loosening of the crawler belt:
(1) Tighten the crawler belt by greasing the one-way valve. The calcium base grease will flow into the chamber along the valve. Once the piston rod got pressure, it will start working and pushing the guide block and pulley move outward.
(2) Loosen the crawler belt can just be done by open the one-way valve.
Pictures of Mine-used machine exhibition in Beijing
B. Shovel Plate Operation
(1. Shovel plate’s ascending and descending:
(1) Pull the operating stick backward to ascend the shovel plate. The ascending height of the shovel front could reach 500 mm from the ground.
(2) Push the operating stick forward to descend the shovel plate. The descending range could reach 210 mm. Shown as picture 25.

Note:
(1) When the shovel plate is lifted and the cutting head is in its lowest, it’s easy to get the bottom of the cutting part collide with the star wheel, which is inconvenient for the roadheader machine. The end of the shovel plate should be in touch with the ground to prevent the machine from vibrating.
(2) The shovel plate should be lifted when the roadheader is moving.
2. Star wheel operation: (The left and the right operating stick share the same operating method.)
(1) Push the operating stick forward can get the star wheel rotate anticlockwise.
(2) Pull the operating stick backward can get the star wheel rotate clockwise.
(3) Put the operating stick in the middle, the star wheel stop. Show as picture 26.

C. Transporting Mechanism Operation
Push the operating stick forward can get the transporting machine turn anticlockwise. Pull the operating stick backward can get the transporting machine turn clockwise. Show as picture 27.

Note:
(1) The huge chunk of coal and rock should be smashed before transporting.
(2) Do not let the chunk on the transporting machine get caught under the shovel plate.

D. Cutting Head Operation
(1) Push the rotating stick forward, the cutting head stop.
(2) Pull the cutting head backward, the cutting head start working. Show as picture 28.
Note: When the roadheader machine is positioned to cut, the cutting face would be 3.1 m in height, 3.5 m in width, and 0.9 m in undercut.

E. Back Prop Operation
(1) Push the operating stick forward, the back prop oil cylinder stretch and the back part of the machine ascend.
(2) Pull the operating stick backward, the back prop oil cylinder retracts and the back part of the machine descend. Show as picture 29.

F. Cutting Arm Operation
The cutting arm is composed of large arm, small arm and the cutting head connector. The needing movements of each arms could be get just by operating the left and right pilot stick. So the operation of the cutting arm is quite flexible and convenient. Show as picture 30 and 31.
Pictures of Mine-used machine exhibition in Beijing