Following the successful development of the 14 cubic top mixer in the first half of this year, China National Heavy Duty Truck Group Special Purpose Vehicle Company successfully developed the largest 16 cubic top mixer in China with the innovation of engineers and technicians of Qingdao College. Up to now, China National Heavy Duty Truck Group Special Purpose Vehicle Company has owned more than 50 kinds of mixer trucks ranging from 4 square meters to 16 square meters, becoming one of the most comprehensive enterprises in China.
On August 9th, China National Heavy Duty Truck Group Special Purpose Vehicle Company held a review meeting of 16 cubic top mixer attended by relevant experts. The participating experts carefully reviewed the newly developed 16 hexahedral mixer. It is agreed that the product has beautiful appearance, compact structure and reasonable layout, especially the new self-centering four-roller mechanism increases the stability of the product.
It is reported that the newly developed 16 Hexagonal Top Mixer of China National Heavy Duty Truck Group Special Purpose Vehicle Company adopts China National Heavy Duty Truck HOWO 8×4 chassis and has a four-roller mechanism with automatic centering ability, which increases the stability of the whole vehicle, reduces the stress on each roller by half compared with the original one, and overcomes the defects such as vibration and noise caused by the high-speed rotation of the original tank. This new mechanism is a new scientific and technological innovation in the development of special purpose vehicle company 16 square mixer of China National Heavy Duty Truck Group. According to reports, this new mechanism will be applied to the large mixer truck of Qingdao Special College 12 cubic meters in the future.
Comfort: The comfort and anti-fatigue indexes of HOWO heavy truck series 7 have been evaluated by experts in the industry as the highest level in China, reaching the international level.
The cab of road vehicles adopts the four-point full suspension air suspension shock absorber which is original in China and top in the world, and can achieve the best shock absorption effect under any road conditions. Like a yacht "frolicking" on the water, it is smooth and comfortable.
The steering wheel is improved into a car-type flexible plastic material, which feels good. The angle can be adjusted by+-5, and the height can be adjusted by 25mm.
All vehicles with horsepower above 290 are equipped with air conditioning, which can be operated electrically and controlled automatically. It is a high-grade car configuration.
HOWO heavy truck sleeper is designed according to the figure of Europeans and Americans, with a width of 600 mm, light weight and good rigidity of aluminum alloy skeleton and built-in steel mesh structure, which can effectively relieve fatigue more than other domestic products.
The upper berth can be raised to any angle to stop.
The unique design of cab ventilation system is the first in China: ① it is equipped with ventilation window, which can effectively keep the air in the cab clean in a fully enclosed state; (2) The cold and warm air ducts lead to the doors on both sides, which can quickly defrost and defog the glass on both sides; ③ Good air circulation, which can effectively remove dust and odor.
The cab is equipped with a luxurious large storage box, which has the largest storage space in China, and the basic configuration includes a car refrigerator.
The original noise elimination system has been tested for several rounds, and the noise elimination effect has reached the international top heavy truck level. The noise is obviously reduced, which makes drivers and passengers feel more comfortable.
Humanization: Humanization design is based on current international standards;
(1) Artificial intelligence design is the most important form to reflect the competitive strength of product technology and safeguard the interests of customers. The higher the intelligence level, the higher the vehicle coverage rate and the greater the density of observation points and control points, which is more conducive to the driver's control over the reliability and stability of the vehicle. HOWO heavy truck has the original artificial intelligence technology in China, which is close to and reaches the international level. The performance is as follows: ① the control of engine water temperature and oil temperature, the control of fuel consumption and combustion degree; (2) Control of vehicle circuit; ③ Load control of intake and exhaust system; ④ Control the air pressure state of the whole vehicle; ⑤ Control of oil quantity and oil system, etc. All control nodes can be displayed with different symbols on the largest LCD screen of commercial vehicles in China.
(2) The latest seat design is unique in China. It embodies the patented technical characteristics of China National Heavy Duty Truck, which not only conforms to the visual aesthetic effect of HOWO heavy truck in appearance, but also fully adopts the ergonomic principle: ① electric heating devices are installed on the seat cushion and backrest; ② The waist of the high backrest is equipped with an airbag, which can effectively support the waist; ③ The upper part of the high backrest can be adjusted, which can effectively relieve the fatigue of the driver's shoulders and neck.
(3) According to the reference design of the most advanced foreign models, the reflector can be equipped with electric control operation and electric defrosting. The wide-field rearview mirror, the right-hand road mirror and the front and lower rearview mirrors have a wide field of vision, so that the driver can fully grasp the driving environment.
(4) Unique door opening and closing mechanism, 90-degree maximum door opening angle, two side door handles and two-stage stainless steel anti-skid pedals make it safer, more convenient and more humanized to get on and off the door.
(5) The reading lights in the cab are arranged in multiple positions, with luxurious design and good brightness, which provides great convenience for reading books and periodicals and working with the vehicle.
Comfortable and humanized design has always been in line with European heavy trucks, making HOWO 7 series a mobile "home" and a decent "office".
Second, the engine.
The engine improved by the patented technology of China National Heavy Duty Truck not only fully meets the requirements of the national standard GB7258 "Technical Conditions for Motor Vehicle Operation Safety" on the specific power of automobile trains, but also appropriately meets the requirements of the national standard GB 1589 "Limits on the overall dimensions, axle weight and mass of road vehicles" on the classification limits of automobile trains with various axles. The whole power classification is adjusted reasonably according to 266ps, 290 ps, 336 ps, 37 1 ps and 420 ps, which makes the whole power system upgrade comprehensively, with more reasonable power classification, wider coverage, stronger power, more economical fuel consumption and cleaner emission, which is incomparable to other domestic manufacturers. The most advanced technical features of the HOWO engine newly developed by China Heavy Duty Truck Weifang Diesel Engine Company are as follows:
The air intake and exhaust system has been fully integrated with European heavy trucks. The air intake and exhaust are smoother, the efficiency is higher, the service life of the engine is greatly improved, and the fuel consumption is completely reduced. (1) The air intake system can solve the problem of engine water intake to the greatest extent. With the unique design method, rainwater can not enter the engine structurally, which completely solves the problem that has plagued other domestic manufacturers for many years. (2) The multipolar dust-discharging air filtering device makes the air inlet cleaner; (3) The diameter of the exhaust pipe is thickened to 130mm according to the European standard, and the joint connection is greatly improved, so that the exhaust is smoother and the resistance is smaller, and the effect is qualitatively improved compared with other domestic products.
The key parts of the engine passed the overload test, which greatly improved the reliability of the whole machine. Especially, the weak points of the cylinder block are improved, so that the cylinder block can bear higher explosion pressure.
The engine speed is low, the torque is large and the torque range is wide, which greatly reduces the fuel consumption of the whole vehicle. Under laboratory conditions, the fuel consumption per 100 kilometers is less than 30 liters, which meets international standards and is the best in China.
The dump truck is equipped with a special engine. In view of the characteristics that dump truck engines often work at low speed, the patented technology of China Heavy Duty Truck was adopted, which made the engine realize low-speed and high-efficiency fuel saving and reduced the operating cost for the majority of users.
The emission fully meets the requirements of national Euro II regulations.
Third, the axle
HOWO drive axle is one of the largest single-stage reduction axles in the world at present, which is the crystallization of in-depth technical cooperation with European and American experts and won the National Science and Technology Progress Award in 2003.
Haowo Bridge is a central single-stage deceleration bridge equipped with Meichi R 180 main reducer, which has the advantages of simple and reliable structure, large bearing torque, long service life, low noise, light weight, high efficiency, fuel saving and convenient use and maintenance. , the performance reaches or exceeds the international advanced level.
1. The hypoid bevel gear verified by Meichi Company has higher strength and longer service life; Larger contact area, more stable operation and lower noise; Low engine speed requires a wide range of transmission ratios.
2. The differential half-shaft gear and planetary gear are precision forged, with greater strength and higher impact resistance.
3. Tapered roller bearing with high bearing capacity
4. The fully floating semi-axle has a hard surface and can resist fatigue impact, and the elastic shaft can absorb impact force.
5. The rectangular cross-section drive axle housing has accurate molding size and regular shape, which meets the strength requirements and improves the rigidity.
6. Optional ABS anti-lock system and automatic clearance adjusting arm.
7. The patented product Q-plus brake of Meichi has stable and constant braking, thickened friction lining and long service life.
Four, gearbox and clutch
HOWO heavy truck 7 series adopts ZF and Fuller series mature transmissions with international advanced level. Its main features are compact structure, large torque capacity and stable quality; Wide speed ratio range, strong ability of heavy-load starting, climbing and off-road; The engine can be kept in the economical speed range.
Flexible cord control has reached the best level in China, with flexible control, no shift, no hand gear, short handle and soft control, and the vibration of the engine will not be transmitted to the cab. The fully synchronous transmission has been tested for many rounds and its performance is good and reliable.
The service life of HOWO heavy truck clutch has reached the international advanced level. Users have always been very concerned about the problem of clutch burning. After repeated improvements and tests, China Heavy Duty Truck took the lead in solving this important problem in China. You will find that the clutch operation is so light and reliable in such a home use environment.
Verb (abbreviation of verb) basic framework
HOWO 7 series heavy truck frame adopts high-strength alloy steel with high strength. The width of the frame has been improved according to the international common standards, and the front width is narrow (front 1000mm, rear 850mm), and all holes are punched by numerical control, so the hole position accuracy is high. The height of the center of gravity of the whole vehicle is lower and the stability is better. It provides the best design conditions for the modification of various special purpose vehicles.
Six, electrical and instrumentation
HOWO heavy truck 7 series instrument panel is jointly developed and designed by Johnson Company of the United States, and the surface decoration is made by Pengze Baguang Company of Japan. The instrument adopts the same kind of instrument selected by European heavy truck, which is not easy to make eyes tired during use; The visual feel of each control switch is comfortable, and there is no fault under normal use.
On the basis of fully absorbing the practical experience of the first two generations of product circuit control panels of China National Heavy Duty Truck, the third generation intelligent electrical control panel has been greatly improved. After all-round, multi-node and overload continuous testing exceeding the national standard, it has achieved ideal results, reached the international level of 265438+ at the beginning of the 20th century, and became the highest level of high-intelligent master control system in China.
HOWO heavy truck 7 series lighting combination is brand-new. The headlight combination is beautiful in shape, perfectly integrated with the cab, and adopts the internationally popular crystal lamp shell, which has high brightness, strong penetration and long service life (xenon bulb is optional); The front lamp holder can be turned over for easy maintenance. The taillight combination has compact structure, reasonable design, beautiful and elegant overall, and multiple brackets, which is more firm and stable.
China Heavy Duty Truck can proudly say that the instrument and electronic control system of HOWO Heavy Truck have reached a height that other domestic manufacturers can't reach.
HOWO Heavy Truck 7 Series has a number of independent research and development technologies, all of which are the first in China, including:
-The dump truck for engineering can choose desert air filtration device;
—— The vehicle battery and spare wheel frame are uniformly arranged on the right side, which is safe and convenient for maintenance;
-Tractors are uniformly equipped with spare tire devices;
—— 350-liter aluminum alloy fuel tank that fully meets Volvo's technical standards;
-The rear axle tire fender is the only one with the highest grade in China at present. The top can be opened, and a strong brush is installed in the cover, which can effectively reduce noise and brush off dirt, mortar and other attachments when driving, effectively protecting tire safety;
—— The medium-long cab is equipped with a large fairing with a length of 2m and a width of 1.6m, which can effectively reduce the drag coefficient by 0.8, and the fuel saving effect is the best in China.
Road vehicles, especially tractors, are equipped with rear fairings, which obviously reduces the drag coefficient by 0.4 and creates a brand-new fuel-saving space for customers;
-A large rear window of 600mm×400mm is added to the high-top medium-long cab, which makes the cab full of light and greatly improves the driver's rear-view safety factor.
HOWO heavy truck series 7 has 4×2, 6×2, 6×4, 8×4, 10×4. Chassis with different wheelbase can be used to refit tractors, dump trucks, boxcars, tank cars and various special vehicles.