"Why the coach is driving well, it will die when he drives his car." Many novice drivers will encounter this problem. Why? Some driving schools have modified and adjusted the coaches more or less in order to facilitate trains for trainees and increase the passing rate of examinations. What are the differences between coaches and private cars? 1. The most obvious difference between coaches and private cars is the yellow color of coaches. Generally, the vehicle is blue, because yellow is closer to the warning signal. The exterior of the trainer car is coated with a specific exterior paint. In addition, the coach car also has a secondary brake and a secondary mirror. Because it is the student driving, the coach also needs to install a dedicated secondary brake and secondary mirror for the coach. 2. Coaches are more sluggish than private cars. I believe many people who study the cars have doubts. Coaches need not step on the accelerator and do not have to step on the accelerator to climb the slope. This is to adjust the coach to high speed and reduce the speed. The number of dead fires is designed to make it easier for trainees to get started. Although this can effectively increase the passing rate of trainees' examinations, it is also the reason why everyone is dead after opening a private car. If everyone does not adapt, they can increase their idle speed, but the car's idling speed and adjustable fuel consumption will also increase. 3. It is not easy to turn off the clutch bike when the clutch stroke is long and loose. It is difficult for the private car to increase the length of the trip. When you drive the coach, you step on the accelerator and the speed will not be noticeable. However, if you drive your own private car and gently step on the accelerator, the car will rush out. This is actually driving school to save fuel. In order to reduce accidents caused by new students mistakenly stepping on the accelerator, they will find ways to make every effort not to step on the accelerator. One of the most common methods is to “lock†the coach throttle, which is to get something under the throttle so that the student can't step on it. Then it led everyone to step out of the gas pedal car. The coach is a special vehicle for driving school. It is mainly used for students to learn the car. It is also a bit different from the ordinary private car. Ask everyone to give yourself a period of adaptation when opening a new car.
Ball
Joint:
The main function of the Ball Joint is to realize the
upper and lower bounce and turn motion of the wheel.
Structure:
There are two kinds of main structure of
the ball joint: one is spherical joint combined with the whole joint, the other
is a hemispherical joint combined. Before using helical spring structure preloading
and wear compensation, now what is widely used is elastic and lubrication
synthetic resin tee which can reduce the cost and improve the maneuverability
and stability. In addition, the material and shape of the dust cover, oil type
has greatly improved, cancel the grease nozzle,of free maintenance.
Ball joint is mainly composed of an end
cover, ball pin, tee and dust cover form.
Connection
mode:
Due to the size and type of the spatial
arrangement of the Control Arm, ball joint is connected with the control arm is
as follows, bolt or rivet connection, directly pressed into the control arm and
the control arm as one. From the ball head pin development trend, now more and
more with the control arm as a whole the fixed ball pin, to meet the needs of
small space occupation, convenient loading and low cost requirements. But the
type of ball head pin of the service life of the demand is higher, so as to
avoid the abrasion of the ball head pin or a failure. The whole control arm and
the steering knuckle ball pin connection adopt 1/6~1/10 taper fitting manner.
Perforce
Requirement:
It should have sufficient swing angle, in
order to meet the requirements of wheel jumping up and down; small friction
moment is to ensure that the steering important factors and easy manipulation;
should not be caused by clearance of wheel shimmy and abnormal noise; good
sealing performance, to ensure that the ball head pin can be used in water and
low temperature environment should have the strength and durability; enough to
withstand the force and vibration, the wheel came.
Manufacturing:
For independent suspension front and rear
suspension of the ball head pin is an important safety component protection,
must be used to ensure the quality of the production process.
1)Attention to the full joint. For hot
forging, cold forging, pressing or casting method for manufacturing blank, then
cutting. Control of materials and heat treatment is a key factor.
(2) Ball pin machining way for cold forging
products is the mainstream. In the heat treatment of the material control is
the key factor, in addition to the products of conical connection type, its
size accuracy is the key factor of stable fatigue limit, need to take measures
in size control of cold forging;
(3) Polyacrylate and polyester elastomer
synthetic resin material structure with elastic effect to become the
mainstream. In this structure, need tee shape, material design measures, to
ensure the production of stable precision molding in the mold, making the fine
The degree of control is the key factor.
(4) The structure of ball joint assembly,
assembly methods are different, but most of the rolling wheel is the main way.
As to prevent the process of different products, bad products, assembly error
and so on, take corresponding measures to prevent mistakes, also used to check
the torque. Shake angle digital inspection machine, and combining them together
to set in the procedure.
Ball Joint Ball Joint,Rod End Joint,Rack End Joint,Auto Tie Rod End Ball Joint VESTA Motoring Ltd , https://www.vesta-industry.com
