Amphibious vehicle land steering hydraulic cylinder and steering device

Abstract

The invention provides an amphibious vehicle land steering hydraulic cylinder. The amphibious vehicle land steering hydraulic cylinder comprises a cylinder barrel, a piston rod, a ball head and a clamp. One end of the cylinder barrel is machined into an internal thread tubular structure, so that installation of the ball head is facilitated. A groove is formed in the outer side of the internal thread tubular structure and used for locking the passing clamp. The piston rod is coaxially installed in the cylinder barrel, the output end of the piston rod is of an internal thread tubular structure,the land steering hydraulic cylinder is provided with a first port and a second port, and the rotation directions of internal threads at the output end of the piston rod and one end of the cylinder barrel are opposite. The novel land steering hydraulic cylinder meets the requirements of an amphibious vehicle waterway / land integration operation type power steering system.

Description

technical field [0001] The patent of the invention relates to an amphibious vehicle water / land integrated steering power steering system suitable for amphibious wheeled vehicles, which belongs to the field of mechanical, hydraulic and motor vehicle applications. Background technique [0002] In recent years, high-speed water and land amphibious wheeled vehicles with high mobility and passability have developed very rapidly, and have now become a new focus in the field of domestic and foreign wheeled special vehicles. High-speed amphibious wheeled vehicles not only have the ground mobility of wheeled vehicles but also have certain offshore navigation capabilities, and their military requirements have become more prominent. They are especially suitable for battlefield environments such as frontier defense, offshore inspections, and beach landings. [0003] High-speed amphibious vehicles are essentially different from vehicles with water driving functions. The speed of the form...

AI Technical Summary

Problems solved by technology

[0005] 1. The cockpit space of wheeled vehicles is relatively small and there are many components. If two sets of steering control systems are arranged in the cockpit, it will be affected by the actual space of the cockpit and other system components (such as on-board electrical system, power transmission control, parking system, etc.). Brake manipulation, etc.) and other factors, it is difficult to achieve a reasonable arrangement;

[0006] 2. Steering control is an important factor affecting the driving safety and handling stability of the vehicle. However, if there are two sets of independent steering control devices on the vehicle, the driver must have a certain technical level or have undergone professional training, which is poor in practicability;

[0007] 3. Due to the different principles and actuators of steering on land and water, there are huge differences in steering transmission ratio, hand force characteristics, and steering sensitivity. The two independent devices will seriously affect the driver's subjective evaluation of the steering characteristics of the vehicle, which will cause would be a serious safety hazard

For the design of the steering system, it is closely related to the structural form of the suspension system and the configuration of the car body. It must not only meet the requirements of the car body configuration, but also match the flipping, folding or lifting of the suspension system. The form makes the design of the steering trapezoidal mechanism and power steering system of the amphibious vehicle extremely difficult, and what is even worse, will lead to the failure of the entire vehicle design

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