Vehicle automatic correction brake co-axial combined bottom fork

Abstract

The invention discloses a combined bottom fork used for automatically correcting the brake coaxiality of motor vehicles, comprising an end axle tube, a leg tube I and a leg tube II, wherein, the leg tube I and the leg tube II are respectively and fixedly connected with the end axle tube, the leg tube I is fixedly provided with an installing suspension loop of a speed changer, and the leg tube II is provided with a wheel axle seat; and when assembling, a brake is fixedly arranged on the leg tube II, the wheel axle seat is sheathed on the excircle of a wheel axle bearing seat for supporting a wheel axle, and the diameter of an inner bore, by which the wheel axle seat is matched with the bearing seat, gradually increases from the center to two ends. The wheel axle seat can slightly swing relatively to the wheel axle, and automatically realize centering; when in use, each friction pair can be adjusted automatically, partial friction can not be caused, especially for the brake which is arranged fixedly and relatively to the leg tube, the partial friction of a friction plate to the wheel can be automatically eliminated, the energy and power are saved, and the service life of the friction pair components is prolonged; and in the installation process, the coaxiality of each friction pair can be conveniently ensured, the friction is avoided, and the service cycle of all the friction pair components is prolonged.

Description

technical field [0001] The invention relates to a flat fork for a motor vehicle, in particular to a combined flat fork for automatically correcting the coaxiality of a brake of a motor vehicle. Background technique [0002] The flat fork is an important part of the motor vehicle and belongs to the suspension device. The flat fork includes two-leg tubes, and the end shaft tubes that are fixedly connected to the two-leg tubes; the two-leg tubes of the prior art are provided with rear wheel axle holes for installing rear wheels; the flat fork and the rear wheels support the vehicle frame on the road surface together In general, the rigidity of the fork and wheel of the motor vehicle is relatively large, and it is treated as rigid in theory. Therefore, the coaxiality of the rear wheel axle holes on the two leg tubes plays an important role in the normal driving of the vehicle. If the coaxiality of the rear wheel shaft holes on the two leg tubes cannot be guaranteed during insta...

AI Technical Summary

Problems solved by technology

If the coaxiality of the rear wheel shaft holes on the two leg tubes cannot be guaranteed during installation, the wheel bearings will be eccentrically rubbed, and the brake pads will also form a eccentrically rubbed friction pair, which will deteriorate the running condition of the vehicle, cause waste of energy and power, and increase vehicle repair costs

Especially for motor vehicles with adaptive automatic transmission, adaptive shifting requires relatively accurate torque transmission. If the axle installation is skewed, brake pads or other friction pairs will generate additional torque when the vehicle is running, it cannot guarantee accurate torque transmission. , affecting the normal action of the adaptive automatic transmission, it will also affect the normal operation of the vehicle

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