Intelligent Telescopic Boom Crane With Low Speed And Large Torque Power System

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XCT75 truck crane is designed mainly for domestic market including international market’s demands. Adopting exclusive self- made chassis, it is applicable for wider roads in which the lifting and hoisting working of normal constructions can satisfy the common lifting jobsites with higher hoisting height, stronger lifting capacity and higher working efficiency. It is widely used in many complicated jobsites such as constructions, urban renovation, transportation, port, bridge, oil and mining etc.

With four-axle crane chassis and K-shaped outrigger, XCT75 has five-section boom of U-shaped added with two lattice jibs and concealed double-independent winches.

Equipped with low speed and large torque power system, it adopts new energy-saving hydraulic system mounted with a combined counterweight (or build-in counterweight available). With XCMG G-generation brand new design and man-made interactive system reaching the level of car, XCT75 takes the lead of the highest performance in the industry which contributes to more intelligent, energy-saving and humanized.

(1) High Performance

Five-section boom with U-shaped profile optimizing the proportion of height and width is made of imported high tension steel material which can reduce boom torsion and side-bending. Inserted sliders may efficiently increase the overlapping length ofadjacent boom sections, eliminating the point contact or line contact between slider and boom while the boom is lifting a load and avoiding effectively local buckling phenomenon. Compact tail boom can improve the telescoping proportion of boom resulting in effective increase of the length of full-extended boom. Boom length of 48m exceeds 1m of the highest levelin the industry with K-shaped outrigger span 7.9m×8.45m contributing to greatly improvement of stability. Fully allocated lifting capacity exceeds 15% of the highest level in the industry.

A high precision pressure shut-off valve is added to prevent pressure shock during lifting operations, to eliminate winch shaking while lowering the hook in case high temperature of hydraulic oil, greatly improving the reliability of lifting operations. A large displacement motor, combined with an oil-refilling circuit specialized for the winch and precise brake control, contributes to the response speed in millisecond and protection against winch speed out of control and prevents the load from sliding down while starting second lift.

(2) Intelligence

The latest control and technology platform with re-planning system achieve operation and driving intelligence. XCT 75 is equipped with multiple functions such as automatic lifting planning, virtual instrument display, automatic multi-language switch, cruise control system and remote flameout.

(3) Energy-saving

New energy-saving hydraulic system includes the lifting hydraulic system consisting of variable displacement pump and constant displacement motor and the slewing hydraulic system consisting of constant displacement pump and constant displacement motor with low-speed large torque. Mature slewing buffering technology is applied. The external- controlled power lowering boom combined with gravity fall results in increased lowering speed from a larger boom angle, improving working efficiency more than 30%.New- generation intelligent control hydraulic system with independent radiator contributes to real-time control of radiator switch and rotary speed. Meanwhile, optimized core radiator improves more than 10% with radiator power reducing 25%.

With low speed andlarge torque engines and high ratio, overdrive gearbox as the core of a new power platform, XCT 75 has a strong driving performance, large quantity of load capacity, good stability, which can achieve a high dynamic performance with low fuel consumption reduced by 12% , driving performance improved by 15% .

First released energy recycle technology can recovery and reuse the power energy from braking. The speed can reach 30km/h when starting for 5.3s and grade ability improved by 5%.

(4) Appearance and humanization

Designed with XCMG G-generation truck crane, the steady and elegant XCT 75 combines man-made mechanisms that comprehensively promote the humanization matching air suspension in driver’s cab with low noise. More comfortable driving performance can be achieved equipped with new deck made of aluminum and more elegant appearance.

Made of new combined material, the hood is shaped from models with good appearance. The board and assist grip are made of aluminum alloy reducing the hood height by 30%-40%.

Convenient reeving system without dismantling wedging sleeve shortens the reeving time from 35min to 18min.

For slewing locking mechanism, it is manipulated by flexible shaft control with which the slewing can be locked and started in operator’s cab.

XCMG man-machine interactive system with the level of car: working space is designed according to ergonomics and 13 items of interactive technology with intelligentization and informatization are integrated, which brings more friendly man- machine conversation.