Although everything on the truck starts and ends with the hydraulic system, the hydraulic truck crane is more important than the hydraulic system. There are many components involved in lifting a load. The following are the basic
What are the basic components of a hydraulic truck crane？
components of each hydraulic truck crane:
The boom is the most famous part of any crane. This is the steel boom of the crane, which is used to carry the load. The cantilever, which rises directly behind the operator’s cab, is an important part of the crane, enabling the machine to raise the load to a height of tens of feet.
The boom of most hydraulic truck cranes has multiple telescopic sections. This particular boom is 127 feet (38.7 meters) long. Some booms are equipped with a jib, which is a lattice structure connected to the end of the boom. The boom is 67 feet (20.4 meters) long, and the 70-ton hydraulic truck crane has a total length of 194 feet (59.1 meters). When the load increases, these parts will expand to the required height.
The reinforced cable starts from the winch behind the operator’s cab and extends upwards through the boom and forearm. The maximum load that each rope can bear is 14,000 pounds (6,350 kg). So a 70-ton hydraulic truck can use up to 10 cables, for a total of 140,000 pounds (63,503 kg) or 70 tons. The rope extends upwards along the boom and jib and is connected to a 285-pound (129-kg) metal ball. When the hook is not loaded, the ball can keep the rope taut.
The jib handles the load, and the jib must be able to move left and right and up and down. Below the cab is the Rotex gear on the turntable bearing, which rotates at a speed of 2 revolutions per minute (rpm). It is driven by a two-way hydraulic motor mounted on the cab and mounted on a metal cover to prevent damage. The rotation is controlled by a foot-operated hydraulic pedal in the cab.
Hydraulic truck cranes are used to lift heavy objects to higher heights. It is important that the truck is completely stable during the lifting process. The tires do not provide the required stability, so the truck uses outriggers as a balance to keep the crane tilted from too much one or the other. Use hydraulics to lift the entire truck, tires and all items off the ground. The legs are composed of beams (ie legs) and pads (ie feet). Sometimes, the float is placed under the pad to dissipate the force of the crane and the load of the concrete or road surface. Floats are usually wooden boards, and they are arranged together on a large base.
Outriggers are just a mechanism for balancing the crane in lifting operations. There is also a detachable counterweight that can be placed under the cab on the back of the crane. These counterweights can prevent the crane from tilting forward during operation. The counterweight required for specific lifting is determined by the load weight, the radius of the boom and the angle of the boom during operation.