Hydraulic steering mechanism

Abstract

The invention discloses a hydraulic steering mechanism which comprises a steering wheel, a transmission shaft, a rotary shaft, a ball screw mechanism, a piston rod, a liquid storage tank, a three-way valve and a steering hydraulic cylinder. The steering wheel is connected with one end of the transmission shaft through a cardan joint, the other end of the transmission shaft is connected with the rotary shaft through a cardan joint, and a slide block is arranged in the ball screw mechanism and performs reciprocal rectilinear motion along the rotating axis of the ball screw mechanism. A piston is arranged on the part of the piston rod in the liquid storage tank, oil outlets are formed in the bottom on the two sides of the liquid storage tank respectively, one end of the three-way valve is connected with the corresponding oil outlet, and the other two ends of the three-way valve are connected with the steering hydraulic cylinder. The steering hydraulic cylinder is connected with a steering knuckle arm and controls wheels on the two sides to perform steering according to different pressures of the liquid storage tank. By means of the helical curve of the ball screw mechanism, labor is saved when steering is performed, steering torque of the wheels is larger by means of matching the helical curve of the ball screw mechanism and the hydraulic cylinder, and it is ensured that the wheels have enough swerving trafficability.

Description

technical field [0001] The invention relates to a hydraulic steering mechanism, which belongs to the technical field of hydraulic pressure. Background technique [0002] The development of the automobile industry has brought great convenience to people's travel. With the continuous introduction of new demands, various models have emerged. Correspondingly, the internal structure of automobiles is constantly changing and updating in various forms. Nowadays, in order to improve the ability of vehicles to pass through rough roads, major automobile manufacturers have invested a huge amount of money in the steering mechanism, and various power-assisted systems have emerged in an endless stream. The application of electronic control has covered every position of this part, and the automobile It is a product with extremely high safety requirements. Although the controllability of electronic products is good, the reliability is not high. Travelers bring huge losses, therefore, in or...

AI Technical Summary

Problems solved by technology

[0002] The development of the automobile industry has brought great convenience to people's travel. With the continuous introduction of new demands, various models have emerged. Correspondingly, the internal structure of automobiles is constantly changing and updating in various forms. Nowadays, in order to improve the ability of vehicles to pass through rough roads, major automobile manufacturers have invested a huge amount of money in the steering mechanism, and various power-assisted systems have emerged in an endless stream. The application of electronic control has covered every position of this part, and the automobile It is a product with extremely high safety requirements. Although the controllability of electronic products is good, the reliability is not high. Travelers bring huge losses, therefore, in order to avoid such situations, a structurally reliable steering mechanism is required

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