It is common in heavy-duty vehicles, which is composed of multiple pieces of reeds of different lengths and uniform width, generally more than 5 pieces. The length of the reed is successively longer from the bottom to the top, and the bottom reed is the shortest, thus forming an inverted triangle, which makes full use of the force principle of the triangle. In addition, the number of reeds is closely related to the load-bearing capacity. The more the number of reeds, the higher the thickness, the stronger the rigidity of the reed, and the bearing force will increase. Of course, its own weight can not be underestimated.
Although the number of normal spring suspension is large, the structure is simple and the maintenance cost is low, because it is rare to see the number of normal springs in use, often only need to replace the damaged reed separately. However, when normal springs are used for a long time, there will be abnormal noise due to mutual friction, and the weakened rigidity will affect the form balance of the vehicle.
The parabolic spring is composed of reeds with thin ends, thick in the middle, equal width and equal length. Therefore, the cross-sectional area of the steel plate of parabolic spring changes more, the rolling process is more complex, and the price will be more expensive than the ordinary steel sheet of normal spring.
Compared with normal spring, the bearing capacity of normal spring is weakened to a certain extent, but at the same time, the dead weight will also be reduced. According to relevant data, under the case of the same bearing capacity, the weight of normal spring can be reduced by about 30% -40% less than that of normal spring.
In addition to reducing the weight of the vehicle, the noise generated by the friction of parabolic spring is also smaller, and the driving comfort of the vehicle has also been improved to a certain extent. In the environment of standard transportation, parabolic spring has become the most common suspension structure.
However, the maintenance cost of small spring is relatively high. Once the spring is broken, other springs are often prone to damage due to uneven force, so the replacement is generally a full set of replacement.
3. Main and helper leaf spring:
It is composed of the main and helper spring, and only the main spring plays a role in the vehicle bearing hours. With the increase of the load, the helper spring and the main spring play a role together, and their elastic characteristics show nonlinear changes.
Notes in the use of leaf spring suspension:
1.Some owners believe that the leaf spring suspension is composed of a stack of steel plates, should not be too fragile, so in use will not pay attention to the protection of the suspension, this understanding is actually wrong, the leaf spring suspension also needs to do a good job in daily maintenance and repair.Develop good driving habits, in the vehicle heavy load through the rough road or speed belt, to slow down the speed, at the same time try to avoid sharp turns, otherwise it is easy to increase the weight of one side, not only cause damage to the reed, and even hurt the steel ring and other parts, affecting the stability of the vehicle.
2.Leaf spring suspension in the use process, the wear coefficient is very large, especially in the case of bad road conditions, it is more likely to appear reed fracture. When replacing the reed, especially the normal spring suspension, even if the other old reed is not damaged, but also to adjust its position. Otherwise, the rigid strength of the newly replaced reed is not consistent with the old reed. After installation, there will be a gap between the two and the two, aggravating the wear of the new reed, and the force of the single piece is too large.
3.The choice of the number of leaf springs depends on the load of the vehicle. When the vehicle is often in a heavy or heavy state, it should be considered to improve the original vehicle leaf spring, so as to enhance the force performance of the leaf spring and improve the service life.
I hope you owners can use the leaf spring suspension according to the standard, regular inspection, maintenance and maintenance, after all, the vehicle "three points to repair seven points to support", raise the vehicle to obtain more long-term benefits.
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Post time: Apr-02-2024
