How to customize Isuzu truck

Isuzu GIGA boom truck crane is a multi-functional lifting equipment usually installed on the truck chassis. The Isuzu GIGA boom truck crane has the functions of combined lifting, moving and transportation, and can flexibly lift and transport heavy objects in different sites and working environments. Isuzu GIGA boom truck crane are usually equipped with a strong boom and lifting hook, which can flexibly adjust the height and radius to meet different lifting needs. Isuzu GIGA boom truck crane are widely used in construction sites, industrial fields, ports, terminals and other places. They play an important role in various scenarios, improve work efficiency, and ensure the safe and efficient completion of lifting tasks.

1. Control mechanism：

The control mechanism consists of a control linkage mechanism and a control valve.The control valve is a superimposed directional control valve, which is divided into an upper control valve and a lower control valve. The upper control valve is composed of four single-chip reversing valves and a relief valve; the lower control valve is composed of a single-chip reversing valve, four It consists of a single selector valve and a relief valve. The upper control valve controls lifting, luffing, telescopic, and rotation respectively. The lower control valve controls the horizontal expansion and contraction of the outriggers and the vertical expansion and contraction respectively. There is no interlocking between the various mechanisms, and each mechanism can be operated simultaneously. Both sides can be controlled by operating the linkage mechanism.

2. Hoisting mechanism：

The lifting and winching mechanism consists of a hydraulic motor, a winch reducer, a drum, a wire rope and a hook.The winch motor is driven by high-pressure oil, and the output shaft produces rotational motion. After being decelerated by the reducer, the small gear drives the large gear to rotate. The large gear is connected to the drum through bolts, so the large gear drives the drum to rotate. Wrap the wire rope around the drum or unwind the wire rope from the drum to drive the hook and weight up or down.There is a built-in brake in the reducer to ensure that heavy objects can stay at any position in the air.

3.Crane arm and telescopic mechanism：

It mainly consists of boom, telescopic cylinder, wire rope group, balance valve, etc. The Isuzu GIGA boom truck crane is a pentagonal structure formed by welding high-strength low-alloy steel, with a total of four sections. Special nylon sliders are installed on the head and tail of each section arm to support and reduce friction. The expansion and contraction of the boom is carried out through a telescopic cylinder and a steel wire rope. The piston rod of the telescopic cylinder is articulated with the basic arm, and the cylinder barrel is articulated with the second section arm. The telescopic expansion directly drives the second section arm to expand and contract, and each wire rope group simultaneously drives the third and third sections. The four-section arm telescopes and retracts synchronously.

4.Rotary mechanism：

The slewing mechanism is composed of a hydraulic motor, a planetary reducer, a slewing bearing, etc.The hydraulic motor rotates under the drive of high-pressure oil. After being decelerated by the planetary reducer, it drives the pinion gear to rotate. The pinion gear meshes with the teeth of the large ring gear on the outer ring of the slewing bearing, driving the large ring gear to rotate; the large ring gear and the column are fixed with bolts. connected, thus driving the column and the boom to rotate together.

There is a normally closed disc brake in the planetary reducer, which can ensure that the output pinion will not swing randomly, and its braking ability can be guaranteed even if it stops on a certain slope. When the hydraulic motor passes high-pressure oil, the high-pressure oil passes through a shuttle valve and enters the brake cylinder at the same time. When the brake is opened, the pinion gear can rotate normally.

5.Hydraulic system：

The movements of the working part of the crane, including lifting, luffing, telescopic, slewing and lifting of the outriggers, are all driven by hydraulics. The high-pressure oil discharged from the oil pump is distributed through the control valve to the hydraulic motor or hydraulic cylinder to perform various actions.

The hydraulically controlled one-way valve in the lower control valve blocks the oil in the rod cavity of the horizontal cylinder of the outrigger, ensuring that the horizontal outrigger will not extend when driving, ensuring driving safety.

6. Frame and legs：

The crane is connected to the car chassis and girder through the underframe.This crane is equipped with a pair of H-shaped outriggers. The front outriggers are installed in the frame, and the rear auxiliary outriggers are installed at the rear of the chassis frame. The horizontal movement of the outrigger is realized by the expansion and contraction of the horizontal oil cylinder, and the lifting and lowering of the outrigger foot plate is driven by the vertical oil cylinder. A hydraulic lock is installed on the vertical cylinder of the outrigger, which can reliably prevent the outrigger piston rod from extending when driving.