Front shock absorber assembly introduce

Shock absorbers are mainly used to suppress the oscillation and impact from the road surface when the spring rebounds after absorbing vibration. When passing through uneven roads, although the absorbing spring can filter out the vibration of the road surface, the spring itself still has reciprocating motion, and shock absorbers are used to suppress this type of spring jumping. If the shock absorber is too soft, the body will jump up and down, and if the shock absorber is too hard, it will bring too much resistance, Obstructing the normal operation of springs. In the process of modifying the suspension system, hard shock absorbers need to be matched with hard springs, and the hardness of the springs is closely related to the weight of the vehicle. Therefore, heavier vehicles generally use harder shock absorbers. The device connected to the shock-absorbing crankshaft is used to counteract the torsional vibration of the crankshaft (i.e. the phenomenon of the crankshaft twisting due to the impact force of cylinder ignition). In the suspension system, vibration is generated due to the impact of elastic components, To improve the smoothness of car driving, shock absorbers are installed in parallel with elastic components in the suspension system. To attenuate vibration, hydraulic shock absorbers are commonly used in car suspension systems. Their working principle is that when relative motion occurs due to vibration between the frame (or body) and the axle, the piston inside the shock absorber moves up and down, The oil in the shock absorber chamber repeatedly flows into another chamber through different pores. At this time, the friction between the hole wall and the oil and the internal friction between the oil molecules form a damping force on the vibration, converting the vibration energy of the car into oil thermal energy, which is then absorbed and dissipated into the atmosphere by the shock absorber. When the cross-sectional area and other factors of the oil channel remain unchanged, the damping force increases or decreases with the relative motion speed between the frame and the axle (or wheel), And it is related to the viscosity of the oil [1]. Shock absorbers and elastic components bear the task of cushioning and shock absorption. If the damping force is too large, it will cause the suspension elasticity to deteriorate, and even damage the shock absorber connecting parts. Therefore, it is necessary to adjust the contradiction between elastic components and shock absorbers (1) During the compression stroke (when the axle and frame are close to each other), the damping force of the shock absorber is relatively small, in order to fully exert the elastic effect of the elastic element and alleviate the impact. At this time, the elastic element plays the main role (2) During the suspension extension stroke (the axle and frame are far away from each other), the damping force of the shock absorber should be large and quickly absorb shock (3) When the relative speed between the axle (or wheel) and the axle is too high, it is required that the shock absorber can automatically increase the fluid flow rate to maintain the damping force within a certain limit, in order to avoid bearing excessive impact loads. Tubular shock absorbers are widely used in automotive suspension systems, and they can provide shock absorption in both compression and extension strokes, which is called bidirectional shock absorbers. New shock absorbers are also used, It includes inflatable shock absorbers and resistance adjustable shock absorbers)

Cheetah CT5 introduce

Anhui Leopard Automobile Co., Ltd. was established on March 28, 2005. It is the strategic core enterprise of Hunan Changfeng Group (Leopard Automobile) in Chuzhou, and also the second largest vehicle production base after the Changsha headquarters and Yongzhou base. The company currently covers an area of about 466.3 acres, including a construction area of 60000 square meters, a registered capital of 600 million yuan, and 860 employees, including 258 people with college degrees or above, and 260 people with various professional qualifications, There are a total of 57 personnel with intermediate or above professional titles, including 50 technical line engineers and above. Currently, the total assets are about 520 million yuan, with a debt ratio of 46%. Since its establishment, the company has invested a huge amount of money in technological transformation of its original production scale, and has formed an annual production capacity of 10000 units per shift. The main products are the three series of pickup trucks and SUV series, including the Flybell, Flyer, and CT5, covering three levels: low, medium, and high, Capable of industrialization in the research and development, manufacturing, quality assurance, and marketing of pickup trucks and SUVs The overall relocation, upgrading and renovation project of the company was signed on February 22, 2013, and received approval from the Ministry of Industry and Information Technology of China. The project has a total investment of 2921.74 million yuan, covers an area of 985 acres, a total construction area of 193446 square meters, a production value of 9.47 billion yuan, a profit of 758 million yuan, and a tax payment of 330 million yuan. In April 2013, The project will commence construction. It is planned to complete the design, construction, procurement, and manufacturing of equipment and fixtures for the process, civil engineering, and public works within 18 months. Trial production will begin in September 2014, and production will reach the standard in January 2016 In 2013, the company achieved a total output value of 420 million yuan, and in the first quarter of 2014, it achieved a output value of 220 million yuan, a year-on-year increase of 8.5%