Walking on non-paved roads, climbing obliquely up the slopes, and pulling large pieces of ore, these working conditions that are not often encountered by ordinary trucks are the daily operation of dump trucks in mining areas.
Due to the particularity of the operation scene, compared with ordinary heavy trucks, the chassis and vehicle structure of dump trucks in mining areas need more professional design. However, it is a pity that the transportation of mining areas in the industry is still completed by mining trucks with conventional road heavy-duty dump trucks, which is very prone to problems such as insufficient power, insufficient braking, and unable to withstand the impact of vibration loading.
There are game-breakers in the predicament. A few days ago, Yutong Heavy Truck released the industry's first pure electric dump truck for mining areas, including two battery capacity products of 264 degrees and 396 degrees, and two drive forms of 8×4 and 6×4. Through co-creation with users, the new models of Yutong heavy trucks have been upgraded in 10 major areas for the operational pain points of users in mining areas, of which 3 are still the first in the industry.
Three major configurations, technology industry debut
The industry's first special battery pack for mining areas: The biggest difference between special batteries for mining areas and ordinary batteries is that they are stronger, more reliable and durable, and can effectively avoid damage caused by bumps and loading impacts with high-strength battery packs. In contrast, ordinary battery packs are prone to external and internal structural failures after one or two years of operation in the mining area, while Yutong's special battery pack can meet the needs of the mining area for more than 5 years. In particular, it is worth mentioning that the structural strength of this special battery pack is 16 times that of the national standard, which can meet the needs of strong vibration and high load impact in heavy truck mining areas, and is simultaneously equipped with durable coating and high weather-resistant materials to improve the environmental adaptability of the battery, realize the requirements of anti-corrosion and anti-aging in the whole life cycle of the PACK, and meet the needs of customers for all-weather, all-scenario and various complex working conditions.
The industry's first five-speed retarder: Yutong heavy truck industry first five-speed retarder, coasting torque adjustment is more accurate, greatly enhance the anti-drag torque, breaking through the industry's commonly used 5500N·m to 9500N·m, nearly double the industry average. Equipped with a five-speed retarder, the energy recovery effect of the vehicle is improved, and the safety of heavy load downhill is greatly improved, and heavy load long downhill is not afraid.
The industry's first automatic climbing lock: There are many uphill and queuing climbs in the process of mine transportation, and frequent gear changes will lead to vehicle start-stop acceleration jamming and unsmoothness, resulting in road congestion. Heavy-duty climbing automatic locking technology, which can control the locking function to automatically activate and exit according to the driver's power demand, to avoid the cycle form of "rich power before upshifting, insufficient power and downshifting after upshifting", which not only reduces driving intensity, but also reduces the probability of traffic jam in the fleet.
Seven targeted upgrades Mining area transportation Yutong is more professional
As the saying goes, professional people do professional things, professional work also needs professional cars to pull, in addition to the above three industry first technology and configuration, Yutong heavy truck has also carried out 7 upgrades on the new car, making it more suitable for the use of mining scenarios.
The first is the application of high-power motors. The pure electric dump truck for Yutong mining area is equipped with a 450kW power motor as standard, which is equivalent to 612 horsepower, and the motor has a high efficiency range and power efficiency of more than 90%. In contrast, the average power level of similar models in the industry is generally about 460 horsepower for oil vehicles and 540 horsepower for new energy vehicles. User feedback shows that the special pure electric dump truck in Yutong mining area can pull 2~5 times more than similar vehicles every day, and truly realize more earning.
While having great power, it also has to have a tough chassis to adapt to it. The special pure electric dump truck in Yutong mining area is co-created with users and has an in-depth understanding of the pain points of the industry. Through investigation, Yutong found that the most prone to failure of the dump truck chassis in the mining area are the leaf springs, balance shafts and stabilizer bar boom supports, so targeted upgrades have been made.
The thickness of the front leaf spring of the special pure electric dump truck in Yutong mining area has been increased from 18mm to 20mm, and the thickness of the rear leaf spring has been increased from 28mm to 30~32mm. The load-bearing capacity and reliability of leaf springs are improved, and the service life is greatly extended. After the balance shaft is upgraded, the overall environmental adaptability of the suspension is stronger, and the service life of the mining environment is increased by 6 times. After structural optimization, the maximum stress of the stabilizer bar boom bracket is reduced by 2.7 times, and the fracture risk is reduced by 63%.
The wheels of the special pure electric dump truck in the Yutong mining area have been fully upgraded. The wheel bolts are thickened to M24, and the tightening strength is greatly improved in the face of potholes, reducing the risk of loosening. The use of mining tread tires can effectively reduce the bump and wear of tires while ensuring grip. The two targeted upgrades not only improve the efficiency of wheel use, but also extend their life, greatly reducing the consumption cost of vehicle operation.
In addition, in terms of bodywork, the large box frame part of Yutong new car adopts a full-body five-longitudinal beam structure, which is one more than the industry's mainstream four-longitudinal beam; the cargo box is made of high-strength steel, and the bottom plate is lifted from 10mm to 12mm; the rear door is strengthened by thickening and lengthening the seven-character hook, increasing the wrapping angle, and increasing the strip steel. Through these upgrades, the reliability of the new car's large box has reached 1.5 times that of the original.
Finally, the perspective is transferred to the inside of the cab, you can see that the special pure electric dump truck in Yutong mining area has a very good field of vision, the lower floor makes the interior space appear abundant, and the airbag shock-absorbing seat has a number of adjustments such as inflation and deflation, damping, one-button start, automatic air conditioning, etc., which can provide better comfort guarantee for drivers driving under relatively difficult conditions in the mining area.
Overall, the pure electric dump truck dedicated to Yutong mining area meets the core demands of mine users. Compared with the conventional models on the current market, Yutong's new products are closer to the working conditions and have great advantages in terms of power, reliability and safety. According to the actual use of users, the special pure electric dump truck in Yutong mining area earns 90,000 yuan more than similar vehicles in a single year under the same use conditions, and the payback cycle is 4 months faster. Such a product is enough to score a high score of S+.