With the construction of domestic highways and the improvement of urban and rural roads, the carrying capacity and driving speed of automobiles have also been greatly improved, and the problem of braking load has been particularly acute. However, friction brakes installed in vehicles have not been able to fully meet the braking needs of vehicles. . Brake shoes and drums have a short service life. The middle drums and tires are heated, which reduces the braking performance. This can lead to a series of events such as extended braking distances, running deviations, slippage and punctures, and serious human lives. Property security has disastrous consequences.
Teller Retarder
Recently, sales staff of Tellabs visited a number of truck drivers in the southwestern mining area and learned that they have a very high rating on the Velcro eddy current retarder. Many drivers stated that if they did not install retarders, they would not dare to drive downhill again. They believed that installing the Tellomar retarder gave them a great deal of safety.
The driver is confident that the vehicle equipped with a retarder will have a braking speed of 25-30km/h, which is about 10-15km/h faster than a vehicle without a retarder. Because they have the confidence to stop the vehicle, they have boldly released the speed and increased the efficiency of vehicle operation.
The retarder is an auxiliary braking system that can bear 30-80% of the braking energy required for deceleration of the vehicle. Without using the main brake, it can slow down the vehicle's travel speed. It is mainly used for high quality and high braking intensity. Heavy vehicles and special vehicles that require high safety and reliability. The installation of a retarder can make large trucks safer and more stable when decelerating and downhill, reducing wear and heat caused by the use of service brakes. Therefore, relevant laws and regulations in developed countries encourage even the mandatory installation of retarders.
Take the Taylor Mali retarder as an example. When encountering a downhill road, the Taylor Malo retarder brake response is very fast, requiring only 0.02 seconds. For the output speed point, the maximum torque is 30km/h, and the effective speed is 10km/h. As long as the vehicle speed reaches 10km/h, the retarder can exert more than 85% braking effect. Therefore, in the long downhill road, Tellomar retarder can quickly produce braking effect, reduce the braking distance and shorten the braking time, which can effectively protect truck and personnel safety.
The most immediate benefit of the retarder is that it is easier to drive and there is no need to worry about overheating and failure of the brakes. In fact, in addition to safety, the retarder has more benefits, reduces frequent jogging and braking, improves the comfort and maneuvering flexibility of the vehicle, greatly reduces the driver's fatigue strength, and greatly wears the brakes and tires. Lowering, prolong the cycle of brake and tire repair and replacement, and extend the actual running time of the car. In addition, the average speed is high on downhill slopes and the economy of vehicle transportation is good. The resulting economic benefits are obvious. It is understood that Tellomar retarder can not only eliminate the accident caused by brake overheating, but also save the cost of replacing brake pads. After one year's monitoring data, Talemar found that the vehicle saves 1,600 yuan/year on brake pads and wheels, and the tires save 10,000 yuan/year.
Of course, any brake is not a panacea. More often than not, it depends on the driver's awareness of safe driving and driving skills. The retarder is a good choice for vehicles with long downhill slopes. It is hoped that the gradual popularity of retarder in our country can make truck driving more safe and efficient.
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