How many types of car shock absorbers are there?
- Categories:Industry news
- Author:
- Origin:
- Time of issue:2018-10-24 15:18
- Views:
(Summary description) Car shock absorber is also the car shock absorber, there is a good car shock absorber, for like off-road, sports car riders will give driving experience bonus.
How many types of car shock absorbers are there?
(Summary description) Car shock absorber is also the car shock absorber, there is a good car shock absorber, for like off-road, sports car riders will give driving experience bonus.
- Categories:Industry news
- Author:
- Origin:
- Time of issue:2018-10-24 15:18
- Views:
Information
Car shock absorber is also the car shock absorber, there is a good car shock absorber, for like off-road, sports car riders will give driving experience bonus. Car shock absorber, as the name suggests, is the car's shock absorption system. It can make the car maintain a certain stability on the bumpy road. Many drivers don't know much about this aspect. Here are some classification and advantages and disadvantages of car shock absorbers, so that car users can quickly understand the car shock absorbers. Automobile shock absorber is composed of spring and shock absorber. The shock absorber is not used to support the weight of the car body, but to suppress the shock of spring rebound after shock absorption and absorb the energy of road impact.
1. According to the angle of damping material
Hydraulic:
Hydraulic shock absorber is widely used in automobile suspension system. The principle is that when the frame and axle do reciprocating relative motion, and the piston moves back and forth in the shock absorber cylinder, the oil in the shock absorber shell will repeatedly flow into another cavity through some narrow pores. At this point, the friction between the liquid and the inner wall and the friction of the liquid molecules will form the damping force on the vibration. More attention should be paid to the WeChat official account: CAQC10000
Hydraulic shock absorption features:
(1) The damping oil has low boiling point and is sensitive to high temperature;
(2) Daily driving use;
(3) Emphasis on driving comfort;
(4) Urban use, suitable for short distance driving;
Hydraulic shock absorber
Air pressure type:
Pneumatic shock absorber is a new type of shock absorber developed since 1960s. The structure features that a floating piston is installed at the lower part of the cylinder barrel, and a closed gas chamber formed by the floating piston and one end of the cylinder barrel is filled with high-pressure nitrogen. A large section O-ring is installed on the floating piston, which completely separates oil from gas. The working piston is equipped with a compression valve and an extension valve which change the cross-sectional area of the passage according to the movement speed. When the wheel jumps up and down, the working piston of the shock absorber moves back and forth in the oil, causing the oil pressure difference between the upper chamber and the lower chamber of the working piston, and the pressure oil pushes the compression valve and the extension valve to flow back and forth. Because the valve has a large damping force on the pressure oil, the vibration is attenuated.
Pneumatic shock absorber features:
(1) High pressure air is not sensitive to temperature;
(2) Suitable for sports and competition driving;
(3) Clear sense of road, good sense of control;
(4) Suitable for long distance driving;
2. By structure
Multi barrel shock absorber:
The double tube damper is also known as the twin tube damper. The barrel has a double structure. The piston part at the tip of the shaft and the assembly at the bottom of the tube are used to generate the anti-aging force（ The former is the main piston assembly, and the latter is called the fixed valve assembly). The outer space of the pipe becomes the oil reservoir chamber (sub tank), and the oil with the same volume of the shaft enters and exits the reservoir chamber. The reservoir chamber is enclosed by atmospheric pressure air or nitrogen gas, which will absorb the oil in and out volume because of the compression and expansion of the gas.
Multi barrel shock absorber
During the extension movement, the upper chamber of the piston is pressurized, and the oil makes the assembly on the extension side (the lower side of the piston) be pressurized and bent, and gradually produce the decay reducing force, and flow to the lower chamber of the piston. At this time, the shaft withdraws from the oil in the barrel, so that the oil of the same volume as the shaft in the lower chamber of the piston is insufficient, and the insufficient oil flows out of the reservoir chamber to supplement. At this time, the fixed valve assembly has almost no anti-aging force.
During the shortening movement, the lower chamber of the piston is pressurized, and the oil makes the assembly on the shortening side (the upper side of the piston) be pressurized and bent, and gradually produce the decay reducing force to flow to the upper chamber of the piston. In addition, the oil under the pressurized piston pushes the fixed valve assembly open and flows to the reservior chamber at the same time.
The characteristics of the compound shock absorber are as follows:
advantage:
Cheap manufacturing
Because it is a double structure, it can allow a little deformation of the outer barrel.
There is sufficient length in the construction, so enough stroke can be ensured.
Disadvantages:
Cannot be used when over tilting.
In structure, the volume of the air chamber is small, and the volume change (pressure change) of the air chamber is large, so it is easy to exceed the pressure resistance performance of the oil seal.
The gas and oil are not separated, and the air is easily mixed into the liquid. In order to improve sports performance and enhance the anti-aging force, it is easy to have cavitation (decompression boiling), so it is not easy to have stable anti-aging force.
There is no way to increase the diameter of the piston, so it is not easy to make subtle adjustment of the reducing force.
Because of the relationship between the cost and the cost performance ratio, the original shock absorbers of vehicles generally adopt this structure.
Single cylinder shock absorber
Single tube shock absorbers are called single tube, mono tube, de carbon and so on. In order to prevent the air from mixing with oil, a free piston structure is designed under the single cylinder. The anti-aging force is generated by the elongation and shortening of the piston assembly at the tip of the shaft. The volume change of the shaft volume is absorbed by the expansion and compression of the gas. In the single cylinder type, nitrogen gas with high pressure is sealed under the free piston. This is to make the upper chamber of the piston not become negative pressure during shortening movement, and use a very high value. More interesting, please pay attention to WeChat official account: CAQC10000
Characteristics of single cylinder shock absorber
advantage:
The relationship between gas and oil separation can produce stable anti-aging force without cavitation and aeration.
Free configuration (can be inverted)
The strut type can be inverted, and the increase of air pressure in order to enhance the anti-aging force is also smaller than that of the multi cylinder type, so the ride comfort is better.
The piston diameter can be increased, so that the reducing force can be adjusted slightly.
The spring plays a role in easing the impact, changing "one impact with large energy" into "multiple impacts with small energy", while the shock absorber gradually reduces "multiple impacts with small energy". If you've ever driven a car with a broken shock absorber, you can experience the bouncing of the car after passing through every pit and undulation, and the shock absorber is used to suppress this bouncing. Without the shock absorber, the spring can not be controlled to rebound. When the car encounters the rough road, it will have a serious bounce. When the car bends, it will also cause the loss of tire grip and tracking due to the vibration of the spring up and down.
Scan the QR code to read on your phone
Next:
None
Next:
None
Contact
联系方式
Time of issue:2018-10-26 00:00:00
Add：6 Minxing Road, airport new town, Yubei District, Chongqing
Tel：86-23-67841886
Fax：86-23-67841338
Mobile Web
手机二维码
Time of issue:2018-10-26 00:00:00
Message
客户留言
Description:
底部版权
Time of issue:2018-10-26 00:00:00
Chongqing Jialong seal Co., Ltd 渝ICP备18013015号-1 Powered By：www.300.cn chongqing 
渝公网安备 50011202502513号