China National Heavy Duty Truck Breaks Bottleneck Disc Wheel Brake
The HOWO-A7 series, a new generation of heavy-duty trucks near the international level launched by CNHTC, has for the first time adopted an application-type disc brake with independent intellectual property rights, first created by China National Heavy Duty Truck, to be built with a new high-end configuration. A new platform for domestic heavy trucks.
Disc brakes were first applied to passenger cars. Compared with drum brakes, they have outstanding advantages such as good braking efficiency, smooth braking, good heat dissipation, and more convenient replacement of brake pads. It is because of its superior safety, comfort and reliability that it has become the commanding height of the heavy-duty trucks to occupy the market, and it has become a major battleground for major host plants. In order to improve the overall vehicle performance and market competitiveness, major heavy-duty vehicle manufacturers have made every effort to equip their own vehicles with disc brakes. However, due to technical limitations, most manufacturers adopt methods of importing or cooperating with foreign companies. However, due to the differences in national conditions, although the technology of mature brake manufacturers in Europe is mature, they are not fully adapted to the Chinese market. As early as 2007, China National Heavy Duty Truck placed its eyes on the research and development of heavy truck disc brakes. Technical Center Axle undertook the research and development of this project.
Under the leadership of Director Cui Huiping, he undertook a lot of pressure, tried a little bit, and tried it step by step. Cui Huiping took the samples home every night and wondered how late the brake discs would be designed. Which way would the one-way adjustment function be used to achieve? How would a friction block be selected? Is it a single or double pusher? The sliding pin or two sliding pins? A set of programs gradually formed in her mind, after analyzing the pros and cons and self-denial, we must form a set of special conditions suitable for China's road conditions and conditions, reliability and safety. The disc brake scheme that satisfies the requirements of the entire vehicle is too difficult. The whole team worked together and everyone communicated fully until the shadow of the disc brakes was created. Finally, the design of disc brakes has taken shape and passed smoothly at the group company's project review meeting.
During the long period of time for the design of the plan and the technical design, the team's fighting spirit was moved. The Assistant to the President, Pang Guiqi, is a nurse and often works at night. He will leave the child at home, make a phone call, and then put it into a stressful job. Kong Zhuo, who lives in Sheshan, was born soon, but he resolutely sent his wife and children back to their hometowns and rushed to the development of disc brakes. Yuan Qiwang is in poor health and can not be too tired, but for the disc brakes, he fights and always fights with the team. The younger designers have come up with the spirit of a newborn calf who does not fear the tiger, accumulate, search for knowledge, and study assiduously. Vehicles with disc brakes on weekends were tested in the cold suburbs. Miles were measured and temperatures were measured. The young members of the car drove under the car, busy and driving away the winter cold. From the center's laboratory to the Dingyuan test field to Baotou, the mines in Nanning and other places have left the figure and sweat of the young designers of the car bridge.
From the design and development of the first generation of disc brakes to the second generation of disc brakes. After repeated testing and verification, China National Heavy Duty Truck finally successfully developed a 20-inch disc brake with independent intellectual property rights across the country, filling the gap in the domestic industry. Disc brakes were successfully developed, and it is China National Heavy Duty Truck Development. An important milestone in history, it filled the gap between domestic and international products.
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