Cleat structure, integral front axle and modification method

Abstract

The invention provides a cleat structure, an integral front axle and a refitting method. The cleat structure comprises a cleat used for being connected with a master pin and a connecting structure used for being connected with the end of an axle tube, the cleat is detachably fixed to the connecting structure, the cleat has a plurality of fixing states relative to the connecting structure, and in each fixing state, the kingpin connecting points on the cleat have different positions relative to the connecting structure. According to the integrated front axle, on the premise that the supporting strength is guaranteed, the kingpin caster angles on the two sides of the vehicle and the included angle between the steering knuckle and the transmission shaft can be conveniently and independently adjusted; meanwhile, the positions of all component mounting points on the axle tube are still kept at the original mounting angles, and variables influencing the axle base, the direction accuracy and the suspension height of a chassis are not introduced.

Description

technical field [0001] The invention relates to the field of automobile structures, in particular to a horn structure, an integral front axle with the horn structure and a method for refitting the integral front axle. Background technique [0002] Since the launch of the first hard-core off-road vehicle model, the appearance, interior, four-wheel drive technology, and power system of the hard-core off-road vehicle have made great progress, but the integral front axle system, which is the core of the chassis, has not been substantially improved. [0003] In the past 25 years, the global sales of hardcore off-road vehicles have exceeded 30 million, and consumers' demand for customization and modification of such models is also increasing day by day. It has become the most common customization method in the industry for OEMs, refitting plants, and refitting shops to increase the size of tires, replace or enhance the suspension system to elevate the car body, increase passabilit...

AI Technical Summary

Problems solved by technology

However, the rise of the vehicle chassis also brings the following problems that obviously affect the driving and handling experience of the vehicle, and also seriously threaten the safety of the occupants:

[0004] 1. After the chassis of the vehicle is raised, due to the change in the installation position of the integral front axle, the conventional included angle between the front drive shaft and the front axle package becomes larger, causing the U-shaped joint of the drive shaft to vibrate, thereby damaging the U-shaped joint and the seal parts, greatly increasing the probability of abnormal damage to the transmission shaft; at the same time, the chassis resonance is obvious due to the distortion of these parts during the operation of the vehicle;

[0005] 2. After the chassis of the vehicle is raised, due to the change of the installation position of the integral front axle, the kingpin caster angle of the horns on both sides of the front axle becomes smaller at the same time, so that when the vehicle is driving straight, the front wheel shimmy occurs and the steering wheel swings erratically , the ability to automatically return to the center after steering becomes weak, the driver loses the sense of the road, and has no confidence in the control of the vehicle even when driving on regular roads;

[0006] 3. The increase or wear of the tires, the left-right imbalance of the suspension system, and other factors combined cause the vehicle to run off, or even go left and right; although, adjusting the caster angle of one side of the horn alone can fundamentally solve the problem. However, all the current integral front axles have been welded and fixed on the axle tubes before leaving the factory, so the caster angle cannot be adjusted independently

However, this method not only cannot fundamentally solve the problem of deviation, but also, because the wheelbase on both sides is no longer a rectangle when the vehicle leaves the factory, it will cause a sense of distortion when the vehicle is cornering; The tires of the tires also do snake-like movements due to the inconsistency of the wheelbase. The driver's intuitive feeling is that the chassis is loose and loose.

[0008] The fundamental reason why the above problems cannot be solved is the common structural defect of all the integral front axles on the market: the caster angle of the kingpin on both sides of the vehicle and the angle between the horn and the drive shaft cannot be adjusted independently

Consumers can only bear the various vehicle control problems and major safety hazards brought about by it; while OEMs, refitting factories, and refitting shops can only spend a lot of labor and time costs to continuously debug vehicles, but with little effect. resulting in low customer satisfaction

Images