Flat fork with high coaxial degree and accuracy

Abstract

The invention discloses a flat fork with high coaxial degree and accuracy, which comprises an end axle tube, a leg tube I and a leg tube II. The leg tube I and the leg tube II are respectively and fixedly connected with the end axle tube. The leg tube I is used for installing a transmission of an automotive vehicle, and the leg tube II is provided with a wheel axle seat which is rotatably matched with a wheel axle. The end part of the leg tube II is provided with a cydariform sleeve with a cydariform inner circle, an outer circle of the wheel axle seat is of a cydariform structure, and the cydariform sleeve is externally sleeved on and slidably matched with the outer circle of the wheel axle seat. According to the flat fork, the wheel axle seat is connected with the leg tube of a flat fork through a cydariform sliding pair, so that coaxial degree is adjusted by the flat fork which automatically swings peripherally. In the installation process, the sliding pairs are automatically adjusted without partial friction, and especially for a brake which is fixedly arranged corresponding to the leg tube, the partial friction of a friction plate to wheels is automatically eliminated, and the unbalanced force to wheels is avoided. The service life of sliding pair components is prolonged, and the driving safety of vehicles is guaranteed at the same time.

Description

technical field [0001] The invention relates to a flat fork for a two-wheeled motor vehicle, in particular to a flat fork whose coaxiality can be adjusted. Background technique [0002] The flat fork includes two-leg tubes and the end shaft tubes that are fixedly connected to the two-leg tubes; the rear wheel shaft holes are arranged on the two-leg tubes for installing the rear wheels; the flat fork and the rear wheels support the frame on the road together. The rigidity of the fork and wheel of the motor car 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 is more important. In particular, if the coaxiality of the shaft holes of the two leg tubes cannot be guaranteed, the wheel bearings will be eccentrically rubbed, the front and rear of the wheels will not be on the same plane, and the brake pads will also form eccentric friction pairs, which will deteriorate the operating conditions of t...

AI Technical Summary

Problems solved by technology

In particular, if the coaxiality of the shaft holes of the two leg tubes cannot be guaranteed, the wheel bearings will be eccentrically rubbed, the front and rear of the wheels will not be on the same plane, and the brake pads will also form eccentric friction pairs, which will deteriorate the operating conditions of the vehicle and cause Increase vehicle maintenance costs

As a result, the brake pads or other friction pairs will generate additional torque when the vehicle is running, and the precise transmission of torque cannot be guaranteed, which will affect the normal operation of the adaptive automatic transmission and the normal operation of the vehicle.

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