Cardan joint steering gear

Abstract

The invention discloses a cardan joint steering gear. The cardan joint steering gear comprises a spherical shell and a gate, wherein the spherical shell and the gate are in spherical surface fit, the spherical shell comprises a first spherical shell and a second spherical shell, external threads are formed in the first spherical shell, internal threads are formed in the second spherical shell, the first spherical shell and the second spherical shell are connected with each other through the threads to form the whole spherical shell, a plurality of grooves are formed inside the spherical shell, balls which are evenly arranged are arranged in the grooves, the balls are connected with the spherical shell through springs, a connecting shaft is arranged at one end of the gate, the connecting shaft penetrates through the second spherical shell, a plurality of rolling paths are arranged on the gate, and the rolling paths correspond to the grooves formed inside the spherical shell. The cardan joint steering gear is simple in structure, low in requirement for installation accuracy, accurate and even in steering, comfortable in driving feeling and wide in application range.

Description

technical field [0001] The invention relates to an automobile steering gear, in particular to a universal joint steering gear. Background technique [0002] The traditional steering shaft is used to connect the steering wheel and the steering gear to transmit the driver's force or torque. At present, the connection between the steering wheel and the steering gear often uses a universal joint steering shaft, and its structure is a double cross shaft. With this structure of the steering shaft, the larger the included angle of the universal joint is, the instantaneous angular velocity and steering torque waveform of the steering gear The more uneven it is, the more it will affect the driving comfort. To solve this defect, a universal joint steering gear has been developed (authorized announcement number CN 202593603 U). This steering gear has a simple structure, difficult installation, and high precision requirements. Due to the limitation of the length of the slot, the stroke...

AI Technical Summary

Problems solved by technology

At present, the connection between the steering wheel and the steering gear often uses a universal joint steering shaft, and its structure is a double cross shaft. With this structure of the steering shaft, the larger the included angle of the universal joint is, the instantaneous angular velocity and steering torque waveform of the steering gear The more uneven it is, the more it will affect the driving comfort. To solve this defect, a universal joint steering gear has been developed (authorized announcement number CN 202593603 U). This steering gear has a simple structure, difficult installation, and high precision requirements. Due to the limitation of the length of the slot, the stroke is also limited, which virtually increases the cost and limits the range of use of the steering gear

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