How to see the depth of the tire pattern of the trolley, how to check the depth of the tire pattern

The wear limit of the tread pattern is 1 6 mm, and the wear limit of the radial tire pattern for trucks and buses is 2 0 mm. The tire tread depth is checked according to the following criteria: Good:

Greater than recommended next replacement: Replacement required: less than replacement limit value:

If the tire is old and cracked, it should also be replaced in advance.

<> Tools Raw materials.

Tire depth gauge.

Plasticine or plastic.

Ruler method (standard).

Buy a tire tread depth gauge, you can use it to measure the tire tread depth gauge, first you can put its tip, into the same cross-section of the tire tread several main tread grooves, measure its depth, get a set of values, from which the average is derived.

If you often drive at high speeds, it is advisable to replace the tire as soon as possible when the depth of the remaining groove is less than 3 mm.

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You may be a little confused when using this type of depth gauge for the first time, after all, there are two sets of numbers for this type of gauge. First of all, you have to recognize that a coarse and fixed ruler is an auxiliary measuring ruler; And the slender one that can be moved is the main measuring ruler. When you see that the probe of the main ruler is in the same plane as the ruler body, the auxiliary ruler is aligned with the "0" scale of the main ruler, and the depth ruler is in the "zero" state;

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end plasticine or plasticine (convenient).

Clean the tires to be measured and pinch the plasticine or plasticizer to soften. You can press it into the texture of the tire.

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Press the plasticine into the tire gap, extend it into several main tread grooves in the same cross-section of the tire tread, measure its depth, and record. Wait until you arrive at three sets of values, from which you get the average. It's the tread depth of our tires.

One tire cannot represent all tires in the car, so they should be measured in turn.

end precautions.

If the tire is old and cracked, it should also be replaced in advance.

How to check the depth of the tread pattern of a car tire:

Optionally, a caliper can be used to measure the depth of the tire, and the caliper tip can be detected by inserting the caliper tip into several main patterns of the tire's tread. When a tire wears out to the point where the tread groove is only millimeters deep, it must be replaced. Hope.

The tire pattern is divided into energy-saving sports type, comfortable and environmentally friendly type, and off-road type.

Characteristics of the sporty pattern: superior driving safety, handling in dry and wet areas, excellent drainage ability, suitable for sedans and SUVs;

The characteristics of comfortable and environmentally friendly patterns: comfortable, silent and fuel-saving, suitable for cars;

Characteristics of off-road tread: strong abrasion resistance, handling in dry and wet areas, excellent drainage ability, suitable for off-road vehicles, SUVs and pickup trucks.

The role of the pattern.

The tire pattern is mainly composed of pattern grooves, pattern blocks and pitches. Its main function is to increase the friction between the tread and the road surface to prevent the wheels from slipping (this is the same principle as the sole pattern of the shoe). The tire pattern has the performance of improving the ground elasticity of the tread, and under the action of the tangential force (such as driving force and braking force) and lateral force between the tread and the road surface, the tread block can produce a large tangential elastic deformation accordingly.

As the tangential force increases, the tangential deformation of the tire increases, and the "friction effect" of the contact surface increases, which in turn prevents the tread from slipping or skidding the road surface.

The method of checking the depth of the tire tread is: you can choose to use a caliper to measure the depth of the tire, and you can use the caliper tip to extend into several main patterns of the same cross-section of the tire tread to detect the depth.

Because all tires are designed with tread pattern wear indicator lines. There are a total of 6 triangles in one lap on the side of the tire.

symbol, follow the direction indicated by the arrow, and you can feel a number of raised steps in the groove of the tire to check the depth. Many people will use a tire tread depth gauge to measure, buy a tire tread depth gauge, you can use it to measure the tire tread depth gauge.

If you are driving at high speeds, it is recommended to replace the tire as soon as possible when the depth of the remaining groove is less than 3 mm. It can be a little confusing when using this type of depth gauge for the first time, after all, there are two sets of numbers for this depth gauge. It is necessary to recognize that the coarse and fixed ruler is an auxiliary measuring ruler; And the slender one that can be moved is the main measuring ruler.

The new tires of cars are generally 8-10mm, and the trucks are generally 17-20mm, some of the patterns are deep and some are shallow, and the depth of the patterns will be somewhat different depending on the manufacturers of the tires.

There are various types of tire patterns, but in summary, there are three main types: normal patterns, off-road patterns and mixed patterns. How much does the tread depth of a car tire need to be replaced?

How much does the tread depth of a car tire need to be replaced? The tire tread depth is checked according to the following standards:

1. Good: greater than;

2. It is recommended to replace it next time: ;

3. Need to replace: less than;

4. Replacement limit value:

5. If the tire is aging and cracked, it should also be replaced in advance.

The deeper the tread of the tire, the greater the elastic deformation of the tread block, and the rolling resistance caused by the elastic hysteresis loss of the tire will also increase. That is to say, when the tire touches the ground, it will consume part of the force to offset the elastic deformation caused by the deep tire pattern, which will form a greater resistance to the car, affect the power input and increase fuel consumption. And the deeper tire pattern is also not conducive to tire heat dissipation, in the process of driving, the violent friction between the tire and the ground will make the tire temperature rise faster, and the root of the pattern is easy to cause tire tearing, falling off and other phenomena due to serious stress.

The main function of the tire pattern is to increase the friction between the tread and the road surface to prevent the wheel from slipping, which is the same as the sole pattern. The tire pattern improves the ground elasticity of the tread, and under the action of the tangential force between the tread and the road surface (such as driving force, braking force and transverse force), the tread block can produce a large tangential elastic deformation. As the tangential force increases, the tangential deformation increases, and the "friction effect" of the contact surface is enhanced, which in turn inhibits the tendency of the tread to slip or slip on the road surface.

To a large extent, this eliminates the disadvantage of treadless (smooth tread) tires that are easy to slip, so that the normal performance of the car related to the friction between the tire and the road surface - power, braking, steering maneuverability and driving safety has a reliable guarantee.

Measure with a pattern ruler or look at the wear indicator in the pattern groove. The height is millimeters (the legal minimum trench depth).

Usually you can measure with a vernier caliper with a depth measuring rod (as shown in the figure), and there is a special tool for a professional one, a small depth gauge. The depth of the tread pattern of a one-wheel car tire is on the left and right, and the specifications of the truck tire are relatively large, and the depth of the tread is different for each type.

There are pattern wear marks on the side of the tire, which is a very small triangle type, and when the pattern grinds to the tip of the triangle, it should be replaced with a new tire as soon as possible;

The depth of the pattern is measured with a depth gauge or dial gauge.

Generally, a tire tread is a groove made up of various longitudinal, transverse, and oblique directions on the tire tread. The tire tread type is usually visible directly on the sidewall. The car tire pattern is illustrated as follows:

Tire tread type.

1.The longitudinal pattern of a tire is a pattern arranged according to the circumference of the tire. Tires usually have several and are not common in everyday use;

2.Compared with the longitudinal pattern, the transverse pattern is broken longitudinally and is continuous laterally. This design makes the tire have greater lateral stiffness, good friction and braking effect, and the tire of this pattern is widely used in professional fields, such as some agricultural machinery, such as harvesters, tractors, etc.

3.Tread tires are widely used in off-road vehicles. There are three types of them: road tires, all-terrain tires, and mud tires;

4.The individual guide troughs are connected to each other for high paving performance and drainage capacity. The direction of the tire roll is fixed;

5.Asymmetrical tread tires refer to the difference in the tread structure on the left and right sides. Due to the difference in the structure of the left and right patterns, more attention is paid to the patterns that increase the landing pressure of the outside patterns when turning.

6.Mixed pattern, which combines a longitudinal pattern in the middle that drains quickly and a horizontal pattern that provides shoulder grip to create the perfect situation to create a mixed pattern. Currently, this hybrid tire is widely used in most vehicles such as cars, buses, and trucks.

The above six patterns are common patterns. Car owners can choose according to the model, the use, and the focus of the car owner's purchase.

The role of the tire pattern.

1.Increase the friction between the tire and the ground;

2.Reduce tire noise and improve comfort;

3.tire heat dissipation and drainage;

4.Improves vehicle handling.

The deep specification of the tire texture is that it is more than the good condition, but the normal situation, and the lower is the situation that must be replaced, and it must be replaced when it reaches the specified value.

According to the requirements of China's national industry standards, the wear limit of radial tire texture for car applications is, while the wear limit of radial tire texture for large trucks and buses is. Therefore, when the tread of the car is worn out, it must be replaced, and the tires used in large trucks and buses must be replaced with new tires.

How to check the tire texture.

1. Rely on the built-in texture of the tire to inspect the thin and thick inspection block, when the parts on both sides of the pipe groove and the inspection block are normal, the tire must be replaced;

2. Use some tire lines to check with thin and thick rulers.

In general, regardless of the number of kilometers, just looking at the service life, the tire can be used for 6-8 years, but it is necessary to distinguish it in connection with the actual situation, such as safe driving habits, real-time road conditions, travel frequency and whether it has encountered a collision, etc., which will obviously endanger the service life of the tire.

However, special attention must be paid to the fact that if the tire has not been used, it must be replaced when it reaches the end of its service life, because the tire will have embrittlement elements. Tire embrittlement will greatly increase the risk of tire puncture, and the risk factor generated during exercise will increase.

In addition to paying attention to the wear level of the tire texture, the tire pressure is also a key indicator value, the tire pressure is too high or too low will definitely endanger the service life of the tire, and at the same time, some safety risks will occur, such as when the tire pressure is too high, it is still driving under the high temperature and fast standard, which will increase the probability of tire puncture. Tire pressure is closely related to the characteristics of the car, which will endanger the comfort and fuel consumption of the ride.