spring

The role of the leaf spring is to connect the frame and the axle in the form of suspension, exposed between the frame and the axle, withstand the load impact of the wheel on the frame, reduce the violent vibration of the body, and maintain the smoothness of the vehicle and the adaptability to different road conditions. 1, multiple leaf springs: By a number of pieces of length, the same width of the steel sheet stacked together. The steel plates of multiple leaf springs are stacked into an inverted triangle shape, the longest steel plate at the top and the shortest steel plate at the bottom, the number of steel plates is related to the weight of the supporting bus, the thicker and shorter the steel plate, the greater the rigidity of the spring. However, when the leaf spring is used for a long time, the pieces will slide and friction each other to produce noise. The relative friction between the steel plates will also cause the spring deformation, resulting in uneven driving. ​2, less leaf spring: by the two ends of the thin middle thick, equal width and length of the steel sheet superimposed. The steel plate section of the small leaf spring changes greatly, from the same stiffness (that is, the same carrying capacity), the small leaf spring is about 50% lighter than the multi-leaf spring, reducing fuel consumption and increasing ride comfort. Moreover, there is a point contact between the spring pieces, which reduces the relative friction and vibration, and increases the ride comfort.

Steel plate bushing is a kind of accessories used outside mechanical parts to achieve sealing, wear protection and other functions, which refers to the ring sleeve that plays the role of liner. It can be used in many different cars, including those with factory suspension systems. The role of the bushing is to absorb the impact of the collision and protect the brake disc from dust and debris. In addition, the steel plate bushing can also be adjusted to work properly, but it is highly recommended that you let a professional perform this task to ensure safety. Now, you can find many different designs of bushings that you can purchase and install into your car. However, there are also some manufactured to improve the performance of the brake. This means that it will be harder for you to put pressure on the brakes while driving, but easier to maintain brake performance.

A McPherson front suspension rigid-elastic coupling model was established by ADAMS/CAR, and the sensitivity of the suspension rubber bushing stiffness was analyzed by ADAMS/insight. The bushing stiffness, which has great influence on wheel positioning parameters, was selected as the design variable, and the minimum variation of wheel camber Angle, front beam Angle, kingpin internal Angle and kingpin rear Angle was taken as the objective function. The wheel positioning parameters were improved by experimental design and multi-objective optimization method. The results show that the kinematic characteristics of suspension can be effectively improved by changing the axial stiffness, torsional stiffness, radial stiffness, axial stiffness and torsional stiffness of front bushing on the lower control arm shaft. After optimized design, the suspension performance is obviously improved compared with the original scheme.

Leaf springs: It is composed of multiple steel plates with unequal lengths and unequal curvatures. After installation, the two ends naturally bend upwards. When the impact force from the road to the wheels comes, the composite leaf spring will deform, which will play the role of cushioning and vibration reduction, and also play the role of guiding and transmitting force when arranged longitudinally. Most of the non-independent suspensions use parabolic springs as elastic elements, which can save guide devices and shock absorbers, and have a simple structure. Leaf springs are the most widely used elastic element in automobile suspension. It is composed of several alloy spring pieces of equal width but unequal length (the thickness can be equal or not). An approximately equal strength elastic beam.

Leaf Spring (Leaf Spring) is the most widely used elastic element in automobile suspension, it is composed of a number of pieces of equal width but not equal length (thickness can be equal, also can not be equal) of alloy spring pieces combined into an approximate equal strength of the elastic beam.

Automobile leaf spring is an important material used in the automobile manufacturing process, and it plays a very important role in the entire manufacturing process. The role of parabolic leaf springs mainly has the following aspects: 1.Automobile leaf spring is one of the basic materials for automobile manufacturing. It is an important part of the car body and can provide sufficient strength and stability to ensure the safety and stability of the vehicle. 2. Automobile steel leaf spring also has good corrosion resistance, and can keep the surface clean and beautiful for a long time in harsh environments. In the exterior design of the car, the color and appearance of the steel plate also play a very important role, which can not only increase the beauty of the car, but also improve the market competitiveness of the car. 3. Automobile steel leaf spring can also improve the energy-saving performance of vehicles. The thickness and quality of the steel plate have a great influence on the fuel efficiency of the car. If you choose the right steel plate material and thickness, you can effectively reduce the weight of the car, improve fuel efficiency, reduce emissions, and achieve the purpose of energy saving and environmental protection.

1. pneumatic device simple structure, light, simple installation and maintenance; 2. the working medium (the determining substance) is inexhaustible air, air itself does not cost money; 3. The adjustment of output force and working speed is very easy; 4. The reliability is not too high, and the use time is greatly influenced by the cleanliness of the air source and the frequency of use; 5. the use of air compressibility, can store energy, to achieve centralized gas supply; 6. full pneumatic control (control) with fire, explosion-proof, moisture-proof ability and other characteristics.

1、Air spring has excellent nonlinear hard characteristics, which can effectively limit amplitude, avoid resonance and prevent impact. The nonlinear characteristic curve of the air spring can be ideally designed according to the actual needs, so that it has a low stiffness value near the rated load. 2、Because the medium used by air spring is mainly air, it is easy to implement active control. 3、the stiffness of air spring with load P and k, so under the different load, the vibration isolation system natural frequency is almost the same, vibration isolation effect is almost the same. 4、The stiffness of the air spring is adjustable, and the stiffness of the system can be changed by changing the volume of the air chamber or the pressure of the inner chamber. No matter how much load, you can change the air pressure according to the need to adjust the stiffness of the air spring, and you can also increase the volume of the auxiliary air chamber to reduce the stiffness. 5、For an air spring of the same size, when the internal pressure changes, different carrying capacity can be obtained. This makes the same air spring can adapt to the requirements of a variety of loads, so the economy is good. Air spring can bear vertical load, but also can bear a certain lateral load and transfer torque. 6、Increasing the total volume of the air spring can reduce the natural frequency of the vibration isolation system, which is the unique advantage of the air spring. The volume of the air spring body, due to the size of the structural space is limited to a certain extent, it is impossible to be too large. In order to reduce the natural frequency of the vibration isolation system, the auxiliary air chamber can be set up, and the auxiliary air chamber can be arranged in the place far from the air spring. 1, pneumatic device simple structure, light, simple installation and maintenance; 2, the working medium (the determining substance) is inexhaustible air, air itself does not cost money; 3. The adjustment of output force and working speed is very easy; 4. The reliability is not too high, and the use time is greatly influenced by the cleanliness of the air source and the frequency of use; 5, the use of air compressibility, can store energy, to achieve centralized gas supply; 6, full pneumatic control (control) with fire, explosion-proof, moisture-proof ability and other characteristics. The volume of the auxiliary air chamber increases, that is, the total volume of the air spring increases, and the natural frequency of the air spring vibration isolation system decreases. 7、The air spring can use the height control valve system, so that the air spring under different loads, keep the working height basically unchanged. Similarly, it can also be through the role of height control valve, so that the air spring has different heights under a certain load, so it can adapt to a variety of structural requirements.

1、Air spring has excellent nonlinear hard characteristics, which can effectively limit amplitude, avoid resonance and prevent impact. The nonlinear characteristic curve of the air spring can be ideally designed according to the actual needs, so that it has a low stiffness value near the rated load. 2、Because the medium used by air spring is mainly air, it is easy to implement active control. 3、the stiffness of air spring with load P and k, so under the different load, the vibration isolation system natural frequency is almost the same, vibration isolation effect is almost the same. 4、The stiffness of the air spring is adjustable, and the stiffness of the system can be changed by changing the volume of the air chamber or the pressure of the inner chamber. No matter how much load, you can change the air pressure according to the need to adjust the stiffness of the air spring, and you can also increase the volume of the auxiliary air chamber to reduce the stiffness. 5、For an air spring of the same size, when the internal pressure changes, different carrying capacity can be obtained. This makes the same air spring can adapt to the requirements of a variety of loads, so the economy is good. Air spring can bear vertical load, but also can bear a certain lateral load and transfer torque. 6、Increasing the total volume of the air spring can reduce the natural frequency of the vibration isolation system, which is the unique advantage of the air spring. The volume of the air spring body, due to the size of the structural space is limited to a certain extent, it is impossible to be too large. In order to reduce the natural frequency of the vibration isolation system, the auxiliary air chamber can be set up, and the auxiliary air chamber can be arranged in the place far from the air spring. The volume of the auxiliary air chamber increases, that is, the total volume of the air spring increases, and the natural frequency of the air spring vibration isolation system decreases. 7、The air spring can use the height control valve system, so that the air spring under different loads, keep the working height basically unchanged. Similarly, it can also be through the role of height control valve, so that the air spring has different heights under a certain load, so it can adapt to a variety of structural requirements.