Speaking of Weichai, this is a well-known engine manufacturer at home and abroad. But when it comes to Weichai special cars, many friends may not have touched it. In fact, Weichai (Yangzhou) Special Vehicle Co., Ltd., formerly known as Yangzhou Shengda Special Vehicle Co., Ltd., is an enterprise founded in 1965, strategically reorganized in 2011, and is now a wholly-owned subsidiary of Weichai Group.
At the 2022 Weichait Business Conference, we saw a number of wide-body ore cards with different load capacities, most of which are driven by diesel engines, while the striking WT90EA is a three-axle pure electric wide-body ore card with a load of 60 tons. In addition to being driven like a traditional minecart, this wide-body mining card can also be unmanned through remote control, which is also one of the highlights of this mining card.
The body side has the words WT90EA
Protective mesh is also installed with the contour lights on the bumper
Millimeter-wave radar in the middle of the front
There are lidar on both sides of the front
There is a transmission antenna on the roof
The Weichait WT90EA has a rated load of 60 tons, and the words "Conqueror CONQUEROR" are also prominently displayed on the protective baffle at the highest part of the hull, showing its determination as a mine conqueror. Vehicle size 9430× 3550× 4150mm, wheelbase 4300+ 1550mm. In order to adapt to such working conditions, Weichai Tat WT90EA approach angle reached 35 °, departure angle reached 39 °, minimum ground clearance 380 mm, minimum turning radius 12 m, maximum empty vehicle speed of 45 km/h, maximum climbing degree of 30%. It can be seen that although its body is huge, the performance in all aspects is still quite excellent.
Shield under the bumper
Front axle shock absorbers and skateboard steel plate suspension to improve suspension service life.
The front axle is from Hand, with a load rating of 20 tons, and the whole vehicle uses 14.00R25 tires for mine use.
A rear-illuminating waist light is installed behind the front wheel fenders, which is quite user-friendly and easy to observe at night.
Shock-absorbing steel plate on the mid-rear axle
The middle and rear axles, also from Hande, use leaf spring balanced suspension, and the single bridge has a load rating of 35 tons for a total of 70 tons.
The stone ejector removes stones that get stuck in the tire clearance
Drive axle housing with rear guard.
Cameras, lidar and millimeter-wave radar at the rear of the car
Minimum ground clearance 380mm
The Power of the Weichai WT90EA comes from the TPG-E03-600371 motor on the car, with a total fixed power of 420kW of about 571 horsepower, a total fixed torque of 16625N·m, and a maximum speed of 3000 rpm. Matched to a 4-speed transmission. The left and right sides of the frame are arranged with power batteries, which use lithium iron phosphate batteries widely used in pure electric vehicles, with a rated voltage of 618.24V and a power of 422.9kW·h.
Power battery compartment
Charging port, support double gun fast charging.
The vehicle controller is the full vehicle electronic control system of the well-known brand power system
It is understood that the car is equipped with a kinetic energy recovery system, when the vehicle brakes, energy can be collected to charge the battery. Then when the mining area is on the mountain, the unloading area is under the mountain, the minecart is empty and consumes part of the electricity, and the full load can be charged to the battery when it goes down the mountain, and ideally the minecart can be replenished for two or three weeks at seven or eight degrees, and the exaggeration is close to the "perpetual motion machine".
Integrated battery thermal management module on the platform on the right
EVS-A2002 electric air conditioner
Unlike the bucket-shaped carriages used in larger rigid mining dump trucks, the Weichait WT90EA's carriage is a reinforced rectangular carriage with a rear door tilt of 6°, a flat-mounted volume of 32m, and a single-cylinder front-loading thrust structure, commonly known as the front-lifting form, and the hydraulic cylinder adopts the Depkaler 196 system (wire control).
Depkaller 196 system
When the daily maintenance compartment is raised, the double safety brace is safer.
From the chassis and carriage structure, the wide-body ore card can be seen as a strengthened version of the highway heavy dump truck, such a design is more in line with China's national conditions, with simple structure, convenient maintenance, cost-effective advantages, in the supply of accessories also have certain convenience, is Weichai special car groped out of the practical solution.
In front of the cab is a glass kettle
Automatic driving emergency stop switch
The front door is more secure to open
Multi-function driver's seat
The interior of the WT90EA is dominated by plain and dirt-resistant dark gray and black, and the dashboard also uses brushed panels, which are beautiful and simple, which is impressive. In terms of driving style, it is not much different from ordinary road cars, and it will not make the driver feel uncomfortable. Although this is a wide-body mining card that can be unmanned, and there is only one seat in the cab, there is a sleeper for the driver to rest temporarily. The car not only has air conditioning but also electric fans, and the windows are also equipped with curtains, which are full of thoughtful design. Even when working in a mine with harsh conditions far from home, the configuration of the car can make the driver feel warm and considerate.
Such a hard-core minecart, the interior of the driving area is still quite exquisite.
There is an LCD screen in the middle of the tachometer and the speedometer
The switches on the instrument table are neatly arranged
Automatic gear lever
The electronic handbrake is easy to operate
pedal
Electric fan with camera
curtain
Under the general trend of "reducing people" and "reducing consumption" in mines, Weichai Special Vehicle responded quickly and launched the WT90EA pure electric unmanned wide-body mining card in a timely manner, which demonstrated Weichai Special Vehicle's accurate judgment of the market and excellent product strength. With the introduction of different tonnages, different power and highly intelligent products, the future of Weichai Special vehicles is worth looking forward to.