High-efficiency large-torque mechanical steering gear device

Abstract

The invention discloses a high-efficiency large-torque mechanical steering gear device, and relates to the technical field of mechanical steering gears. The device comprises a shell, a steering nut isarranged in the position, close to the upper side, in the shell, a first radial bearing is fixedly installed between the left side face of the steering nut and the shell, an input shaft is movably installed in the steering nut from the right side face, a second radial bearing is fixedly installed on the input shaft, the second radial bearing abuts against the right side face of the steering nut,a steel ball is arranged between the input shaft and the steering nut, and a supporting bearing is arranged between the outer surface of the steering nut and the inner wall of the shell. The supporting bearing matches the wall of the shell, the position is limited through a limiting clamping ring, the output torque is increased, the durability is improved, the service life of the steering gear boxis prolonged, a first needle roller bearing matches a second needle roller bearing, the positive efficiency of the steering gear box is greatly improved, and the return performance of the steering gear box is more excellent.

Description

technical field [0001] The invention relates to the technical field of mechanical steering gears, in particular to a high-efficiency high-torque mechanical steering gear device. Background technique [0002] With the development of the automobile industry, especially the state's support for electric vehicles, many of the original products are facing elimination or product upgrades. For steering gear steering machines, hydraulic steering machines are mainly used, which need to be powered by cars. Part of the kinetic energy, 90% of passenger cars have been changed to electric steering. Due to the structural characteristics of commercial vehicles, most of them use hydraulic steering gears. Electric recirculating ball steering gears are developed and designed for commercial vehicles. Electric recirculating balls The steering gear is deeply developed on the basis of the mechanical recirculating ball steering gear. Using the mature C-EPS technology, the improved C-EPS deceleration...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a high-efficiency high-torque mechanical steering gear device, which has the advantages of increasing the output torque, improving durability, increasing the service life of the steering machine, greatly improving the positive efficiency of the steering machine, and making the steering machine With the advantages of more excellent backing performance, it solves the bending deformation of the input shaft, the arc shape of the contact with the steel ball changes, the angle of force and the size of R also change, resulting in pitting corrosion and jamming on the arc surface of the input shaft The problem

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