Knowledge of the structure of CNS truck mounted crane

1, lifting arm: lifting arm through the hydraulic cylinder to expand, lifting hook pulley suspended from the top of the lifting arm.
2, load indicator: The load indicator indicates the total load of the car chassis under no-load state when the length of the various boom and the Angle of the boom.
3, hoist: The hoist is driven by a hydraulic motor, and the heavy weight is lifted or dropped through a wire rope.
4, the column: the column supports the lifting arm, hoist structure and variable amplitude cylinder, and is driven by the rotary system.
5, rotary system: rotary system (hydraulic motor, so that the column rotation.
6, frame: the machine is directly installed on the chassis of the car, supporting the column and leg frame.
7. Hydraulic oil tank: The hydraulic oil tank contains the special hydraulic oil for the truck crane, and plays the role of heat dissipation and precipitation filtration.
8. Leg lever: Leg lever is used to control the expansion and expansion action of the left and right leg cylinder.
9, leg cylinder: During the crane operation, in order to make the vehicle stable, the leg cylinder is extended to the ground to improve the operational stability of the crane.
10, horn: used for lifting operations, warning personnel within the scope of operation.
11, accelerator joystick (hand throttle) : accelerator joystick is used to adjust the speed and output power of the engine to meet the needs of lifting.
12. Rotary joystick: Rotary joystick is used to control the rotary mechanism, so that the column and the lifting arm can rotate around.
13, amplitude control lever: amplitude control lever is used to control the telescopic action of the amplitude cylinder, to achieve the height control of the boom.
14, lifting lever: lifting lever is used to control the hoisting mechanism (lifting or lowering heavy objects).
15, lifting the joystick: The telescopic joystick is used to control the telescopic cylinder action, through the telescopic pulley frame for telescopic control of the boom.
16, PTO (taking force rod) : PTO rod (taking force rod) is used to control the engine's power output and cut off the crane.
17, variable amplitude cylinder: Variable amplitude cylinder is the actuator that makes the lifting arm tilt up or tilt down.
18, hook pulley: through the increase or decrease of its upper pulley, to achieve the conversion of the lifting rate, direct hook lifting heavy objects.
19, wire rope: transfer the output torque of the drum to the hook.
20, over-winding alarm device: when the hook pulley is close to the top of the lifting arm, the over-winding alarm device will automatically send an alarm signal. This prevents the wire rope from overwinding.
21, the rear leg: installed in the rear of the vehicle rear axle, connected with the girder, to further improve the stability of the vehicle.