Liebherr’s intelligent assistance system for wheel loaders could be a game-changer for quarries.
Quarrying equipment is getting smarter every year, and Liebherr’s wheel loaders are no different.
The company’s new intelligence assistance systems are designed to enhance safety and comfort for operators who carry out daily tasks in their wheel loaders and need to perform at a high level.
“All the systems have been developed by Liebherr and are therefore fully integrated in the machine control system,” the company said.
“The useful assistance systems are easy and intuitive to operate, allowing the operator to control the machine safely, efficiently and at the same time protecting the machine. This ensures maximum operator comfort while also increasing productivity.
“The Liebherr assistance systems are the ideal solutions for efficient use of wheel loaders.”
Enhance safety
The system includes adaptive working lighting, an intelligent light control system that enables the brightness of the headlights to be adapted according to the application. This is achieved by switching on the various lightning components only when required by modern light sensors making it a fully automated system.
The sensors help detect the position of the light arms, the working attachment and the wheel loader’s articulation angle and the lights are adjusted as required.
This means the operators can have the entire working area illuminated while operating the wheel loader. This higher level of visibility means a higher level of safety as the operator can maintain their view without straining or fatigue.
Steering controls
Joystick steering enables all working and driving commands to be carried out with precision. Due to its high degree of sensitivity, it responds to fast manoeuvring.
The option for a Liebherr wheel loader with joystick steering means a greater view and cabin space for the operator, as the steering wheel and column are eliminated from the cabin.
Safety detection
A rear personnel detection system is designed to monitor the area behind the Liebherr wheel loader.
When the system detects a potential source of danger behind it while in operation, operators will receive a danger warning with a signal tone and symbol on the display.
When detected, the brake assistance system will be deployed to automatically slow the wheel loader and help prevent a potential accident before it happens.
“With the aid of the latest camera technology, the system distinguishes between people and objects without the people needing to be equipped with transponders or sensors. This makes the Liebherr system one of the safest currently on the market,” Liebherr said.
In addition, the roof camera designed for front area monitoring is included. The roof camera provides operators with a greater field of vision around the wheel loader’s front operating area, which enables safer operation.
The system can recognise people and obstacles in the front area of the machine even when working with large attachments, including lightweight or high dump buckets. But it is more than just a safety tool, with the expanded visibility offering the operator an improved field of vision into high containers, dump trucks and hoppers, improving accuracy when loading and feeding.
Weighing system assistance
An automatic weighing system provides a checking scale and several weighing functions to support the operation of Liebherr’s wheel loaders.
The weighing data is clearly displayed in the cabin with the operator able to enter a desired load weight on the display. The truck payload assist feature will then automatically suggest tips to achieve the best shovel fillings and loading cycles for an efficient loading process.
With this important data, the operator can easily carry out tasks while making informed decisions throughout the loading process.
This helps save time during operation and reduces the load on the machine, which supports maintenance and negates potential downtime.
“This ensures precise, efficient and gentle loading of trucks, dumpers and containers. This allows operators to carry out their work in a concentrated and uninterrupted manner without the need for time-consuming re-weighing,” Liebherr said.
“As a result, time and money is saved, and the productivity of the operator and machine are significantly increased.”
Tyre pressure monitored
One of the major costs to quarries lies in the upkeep and continued maintenance of machines. This includes aspects like tyres, which are considered the most expensive wearing parts on a wheel loader.
The integral tyre pressure monitoring system is available on Liebherr L 526 – L 546; XPower wheel loaders. With strategically placed sensors on the tyre valves, the system notifies the operator of any pressure defects or deviations with a warning signalled on the cabin’s display. From there, the operator can act early and carry out preventative maintenance which avoids the need for unexpected downtime. By maintaining the tyre’s quality as well as a stable pressure, the wheel loader will maintain good stability and handling characteristics during operation.
“Tyres are among the most expensive wearing parts on a wheel loader. Incorrect tyre pressure leads to increased wear and rising fuel consumption, resulting in high costs. Further negative effects are restrictions in handling characteristics such as stability, traction and operating comfort,” Liebherr said.
“It is therefore important to counteract deficient tyre pressure quickly and to detect possible tyre damage at an early stage.”
Automatic functions
Liebherr has provided the option of including several automatic functions to its wheel loader as part of the Intelligent Assistance Systems.
Operators can choose the optional automatic functions depending on which ones would best suit their tasks and applications.
All of the automatic functions are designed by Liebherr to speed up cycle times which supports efficient and productive operation in the quarry.
The key automatic functions include:
– Bucket tilt assistant: Supports tipping out material, including sticky materials, and distributing material evenly.
– Stroke limit damping: Reduces shocks throughout the wheel loader which protects machine parts by approaching the limit gently.
– Programmable bucket return-to-dig: This function programs the bucket to automatically return to the dig position, which speeds up cycle times on site.
– Automatic lifting and lowering: This automatically positions the bucket and lifting arms at an optimum position to increase cycle times. •
For more information, visit liebherr.com.au
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