Why do a few connecting rods on the bottom of a car support the entire car?

Multi-link rear suspension.

Take the multi-link rear suspension as an example, the wheels will be connected to the skeleton of the body through some shelves, and the coil spring can be connected to the other end of the shock absorber in the wheel, and it will also be connected through some subframes of the body, directly to the skeleton of the body. When the vehicle is stationary or full of seats, the weight of the body will basically rely on them to support, and the two will almost not carry the weight of the body, after the car is moving, there is some neutrality, and it will still rely on the two of them to support, but due to some imbalance on the road surface, the wheels will swing or tilt unevenly, and this situation will also be affected by some gravitational inertia. Some of their functions are to connect the balance, drag and adjust and share a small part of the inertial motion support. However, even to the active range and his strength, there is no such limit, as long as it is within the range of the adjustment setting, it is fine, but it is generally too intense driving, more than some rated ranges of bearing, and there are many cases of broken rods.

Because the design of the bottom of the connecting rod is very good, it can support a relatively large weight.

Because several connecting rods disperse the entire weight of the car, it is possible to support the entire car.

In the case of multi-link rear suspension, the wheels are attached to the skeleton of the body through some shelves, and the coil springs and shock absorbers are also attached to the other end of the wheel.

He used a special suspension system to support the whole car.

Because this is the person who made the car with a new kind of technology and physical knowledge.

These steels have actually been modified, and the hardness is very high, so there is no need to worry about it.

Good material is the main factor, and good material should be used in supporting the weight of the car very large.

This is based on the designer's design, so that the load of the car does not increase.

<> "With the development of the times, many people have bought cars. As we all know, the car is composed of many parts, so its weight is often not light. The connecting rod, as a rod-like part connecting the piston and the crankshaft, also plays a good role in supporting the car.

For this situation, many people are very puzzled, why only a few connecting rods can support the entire car?

In fact, the cars we see in daily life often rely on the entire body frame to distribute all the weight to the body axle, coil springs and shock absorbers, and then distribute it to the car tires. Therefore, it is not only the connecting rod that supports the weight of the entire car, but the connecting rod and other parts together share the weight of the car. In the internal structure of the car, the main function of the connecting rod is to connect the wheel and the frame, so that the wheel can be changed at will within a certain range.

For example, in the case of multi-link rear suspension, the wheels are connected to the body by the shelves, and the coil springs and shock absorbers are connected to the wheels by the passenger of the body. When the car is at a standstill, it basically relies on coil springs and shock absorbers to bear the weight of the car, and when the car is moving, when the road surface is not very flat, it will cause the wheels to swing and the force will also shift. In such cases, their role is to maintain the balance of the car and support the inertial motion of part of the car.

However, there is also a certain limit to the range of force they can adjust, and when the driving is more exciting, if it exceeds their tolerance limit, it is very likely that the rod will break.

In general, the main load-bearing force of the car is only the coil spring and the anti-vibration device, although the connecting rod may break due to the greater force during the driving of the car, and it is only because the connecting rod can no longer adjust the wheel. For the car, whether the connecting rod bears its weight or not, it plays a very important role, after all, it is possible to adjust the oscillation of the wheels.

The shock absorber that really supports the car connects the tire to the body through the shock absorber, because the weight of the car is from top to bottom, so the shock absorber makes the most important stressed part。The connecting rod is mainly used to maintain the shock absorber position without being out of sync when the vehicle is turning or driving on a rough road, so as to ensure the stability of the body. The blue is the tilt bar and the red is the stabilizer bar, and they are mainly used to the left and right, not up and down.

1. There is a ball head at the connection between the anti-tilt bar and the stabilizer bar.

When the car is turning, it will be resisted by the road surface, and if a rigid connection is used, it is easy to break, so the ball joint plays a role in relieving the stress. More importantly, the tire is at the same steering angle angle through this device, which is actually the effect of pulling left and right with each other.

If there is no anti-tilt bar, the angle of the two tires will not be the same when cornering. By connecting with the stabilizer bar, the angle of the tire steering is synchronized. When the car is moving, the resistance of the tires is very small, even if the anti-tilt bar is very thin, it is completely operational.

If the rod is too thick, it will increase the tension, which is not good for stability.

Second, the operation mechanism of different suspensions

When going straight. On the far left is the regular four-wheel independent suspension, in the middle is a four-wheel independent suspension fitted with a stabilizer bar, and on the far right is the axle suspension. When going straight, the stabilizer bar does not work because the left and right suspensions are the same length.

Over the stairs. When there is a stabilizer bar, the spring on the other side is also forced to retract, so the body tilts more than when the stabilizer bar is not installed. In addition, in a car with axle suspension, the left and right tires are connected by an axle, so even with suspension, the vehicle will inevitably tilt.

Therefore, when a car with a stabilizer bar crosses a step on one side, it will play a role between the independent suspension and the axle suspension. However, if the thickness of the stabilizer bar is too thick, the role of the 4-wheel independent suspension will be lost, and its performance will be the same as that of the axle suspension.

The disadvantages of the stabilizer bar, but if you cross diagonally, the left and right tires will alternately climb over the steps. In this case, the backward swing of the stabilizer bar and the reaction of the road surface expansion will overlap, and the body will sway from side to side.

Turn. At the corners, the upper part of the body tilts outward due to centrifugal force, and when the internal spring stretches, the spring on the opposite side also tries to stretch. Therefore, the four-wheel independent suspension makes the body tilt significantly, and the suspension with a stabilizer bar can suppress the tilt of the car's rough body.

Summary: Different suspensions have different operating mechanisms, and different suspensions can be selected according to road conditions when purchasing vehicles.

This is due to the fact that these rods are professionally machined and have very good stability, so they can support the car.

Because these connecting rods can share the weight of the car, they can make the car very stable, and the quality of these connecting rods is also very good.

This is probably the wisdom of the business, it should be the use of the principle of leverage, people are still very smart.

Don't underestimate the power of the shock spring, usually we will choose the right spring according to the size of the K value, the K value is simply said to be a spring 4K, then it means that the force of four kilograms to compress it, or to stretch it, will only produce a millimeter of deformation, first of all, let's talk about the support structure of the suspension, the suspension system includes shock absorbers, suspension springs, anti-roll bars, suspension beams, lower control arms, longitudinal rods, knuckle arms, rubber bushings and connecting rods and other components. In fact, it is not the connecting rod that bears the weight of the car.

<> when the vehicle is driving, the gravity of the body is mainly supported by them, but due to the uneven road surface, the wheels will swing, tilt, and the force is uneven, and the connecting rod will be affected by the gravitational inertia at this time, but its main role is: connection, balance, dragging, manufacturers should not only consider the comfort of the car, but also consider the cost of handling stability. Based on these three issues, different manufacturers have different tendencies and strategies.

This has led to the emergence of five types of suspensions that are now more common: MacPherson independent suspension.

When the car is subjected to a violent impact (especially in the high and low directions), the suspension connecting rod is broken, indicating that the connecting rod is indeed a high-risk part. In order to verify the durability of the suspension, it is supported by the front and rear landing gear, and in the process of aircraft take-off and landing, the impact force of the landing gear shaft is many times greater than that of the stationary state, and the impact force borne by the landing gear can be imagined. With a dead weight of only one to a few tons, the weight of a car cannot be compared to that of an airplane.

It can effectively control the camber angle of the wheels through the front and rear positioning arms and the upper and lower control arms, and the suspension structure of more than 4 links will be arranged on the rear wheels, and the structure of 3-link or 4-link suspension is mostly used on the front wheel suspension. Directly connected to the chassis, the rear suspension is only one part of it, not a direct force point. Regardless of the type of suspension, the main thing that is responsible for the stability of the body is the springs and the suspension barrels, which have thick springs that form a hard connection between the car and the wheels.

The macroscopic metallographic structure in the longitudinal section of the connecting rod requires that the direction of the metal fiber is consistent with the shape of the connecting rod, and the fiber is not twisted and interrupted. The connecting rod forged with steel should be quenched and tempered (high temperature tempering after quenching) before machining to obtain high comprehensive mechanical properties, which are both strong and tough. In order to improve the fatigue strength of the connecting rod, the unmachined surface should be shot peened.

The connecting rod must also be tested by magnetic flaw detection in order to work reliably.

Automobile connecting rod refers to the crankshaft connecting rod, which is the device that connects the piston, which is called the automobile connecting rod, and is also an important part of the engine.

The main processing surfaces of the connecting rod are: large and small end holes, upper and lower end faces, large end cap joint surfaces and connecting rod bolt holes.

This is one of the main transmission objects in the engine, and then the main function is to plug between the neck and the expanding gas to generate a certain pressure, and then transmit it to the crankshaft.

I have a certain understanding of this, because driving is a very technical thing, and some people feel very safe when driving, and slowly such problems will appear.

A connecting rod is a rod-like part that connects the piston to the crankshaft. Its function is to transmit the enormous pressure of the piston to the crankshaft, so that

The crankshaft moves in a circular motion. The connecting rod is composed of three parts: the small head of the connecting rod, the shaft and the large head of the connecting rod. The small head of the connecting rod is a whole with the connecting rod.

body, the hole is equipped with a bronze bushing, which is connected with the piston with a piston pin; The shaft section is I-shaped, which can ensure strength and stiffness.

case to reduce the mass and make it not distort when subjected to pressure; The connecting rod head is divided into two parts, and the upper part is cast with the shaft.

The lower half is the connecting rod bearing cover, which is connected with the upper half with bolts. In order to ensure that the connecting rod head can be smoothly withdrawn from the cylinder, the connecting rod head has two forms: flat cut and oblique cut. The connecting rod head is equipped with two semicircular connecting rod bearings, in order to reduce the connection.

The friction of the rod journal, the bearing surface is poured with a layer of anti-friction alloy. The positioning between the connecting rod and the bearing cover is generally taken as a stop.

There are three types of positioning in the form of tooth shape and positioning sleeve to ensure the accurate fastening of the two. Hope!

It is a part on the suspension of the car, and the support rod is inside the shock absorption. Stabilizer bars are generally transverse and are used to reduce roll when the car is cornering.

The support rod generally refers to the engine cover support rod. The stabilizer bar generally refers to the chassis, the suspended stabilizer bar.

Hello. 1. The support rod is generally used to support the hydraulic rod of the engine cover and trunk cover.

2. The stabilizer bar is installed in the front suspension or rear suspension of the car, usually a torsion bar (also known as a torsion spring), which plays a role in the lateral stabilization of the vehicle.

Hope it helps.

Restricting the wheel or body travel.

The connecting rod is one of the main transmission components in the automobile engine, which transmits the expanding pressure on the top surface of the piston to the crankshaft in the diesel engine, and drives the piston to compress the gas in the cylinder by the crankshaft. The connecting rod is subjected to drastically varying dynamic loads during operation. The connecting rod is composed of two parts: the connecting rod body and the connecting rod Xianzhou cover.

The connecting rod and the large head hole on the connecting rod cover are bolted and nuted together with the crankshaft. To reduce wear and ease of service, the connecting rod has thin-walled metal bearings in the borehole. The bearings have a steel bottom with a layer of wear-resistant babbitt bearing metal poured on the inner surface of the bottom.

There is a set of spacers between the connecting rod body head and the connecting rod cover, which can be used to compensate for the wear of the bearings. The connecting rod tip is connected to the piston with a piston pin. Bronze bushings are pressed into the small and raised head holes to reduce wear on the small head holes and pistons, and to facilitate repair and replacement after wear.

A connecting rod is a rod-like part that connects the piston to the crankshaft. Its function is to transmit the huge pressure of the piston to the crankshaft, so that the crankshaft moves in a circular motion. The connecting rod is composed of three parts: the small head of the connecting rod, the shaft and the large head of the connecting rod.

The small head of the connecting rod and the connecting rod are a whole, and the hole is equipped with a bronze bushing rubber code, which is connected with the piston with a piston pin; The shaft section is I-shaped, which reduces the mass while maintaining strength and stiffness, and makes it not twist when subjected to pressure; The connecting rod head is divided into two parts, the upper half is cast into one with the shaft, and the lower half is the connecting rod bearing cover, which is connected with the upper half with bolts. In order to ensure that the connecting rod head can be smoothly withdrawn from the cylinder, the connecting rod head has two forms: flat incision and oblique incision. The connecting rod head is equipped with two semi-circular connecting rod bearings, and in order to reduce the friction of the connecting rod journal, a layer of anti-friction alloy is poured on the bearing surface.

The positioning between the connecting rod and the bearing cover is generally positioned in three forms: stop mouth, zigzag and positioning sleeve to ensure the accurate wheel and cover fastening of the two.