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Rear axle steering pump assembly and steering system

A technology for steering pumps and rear axles, applied to steering mechanisms, steering rods, fluid steering mechanisms, etc. Complex conditions and other problems, to achieve the effect of reasonable valve group structure layout, safe and reliable system, and small pressure loss

Active Publication Date: 2020-10-30
CHINA NORTH VEHICLE RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (2) Compared with engineering vehicles, wheeled vehicles have more complex working conditions and harsher environments. The response characteristics and impact resistance of the follow-up steering axle are common issues that affect vehicle handling stability and safety.
[0007] From the above comparison, the variable vehicle structure, complex application environment, and harsh service conditions of wheeled vehicles have brought great challenges to the reliable application of all-wheel steering technology on wheeled vehicles. The technical framework of the all-wheel steering system of engineering vehicles cannot meet the requirements of use. Therefore, it can simultaneously have the dynamic response and impact resistance of the follow-up steering axle in complex environments, and the median steering stiffness of the follow-up steering axle under nonlinear loads and The all-wheel steering system with the three core capabilities of the active return of the follow-up steering axle under the condition of system failure and vehicle damage will become a high-reliability all-wheel steering system suitable for wheeled vehicles

Method used

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  • Rear axle steering pump assembly and steering system
  • Rear axle steering pump assembly and steering system
  • Rear axle steering pump assembly and steering system

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Embodiment Construction

[0082] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0083] In this article, if there is no special explanation, when it comes to formulas, " / " means division, and "×" and "*" mean multiplication.

[0084] In order to solve the problems in the prior art, the present invention provides a high-reliability electromechanical hydraulic all-wheel steering system and its rear axle self-aligning and locking device, especially a 4X4 electromechanical hydraulic all-wheel steering system. The all-wheel steering device of the system adopts hydraulic power-assisted mechanical steering on the front axle, and the rear axle uses an electronically controlled hydraulic cylinder to drive the steering of the rear axle. As a preference, the high-reliability 4X4 electromechanical-hydraulic all-wheel steering system and its rear axle passive self-aligning and locking device are suitable for wheeled vehicles of mor...

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Abstract

The invention provides a rear axle steering pump assembly and a steering system. A motor and a rear axle steering pump are included. The rear axle steering pump is provided with an oil inlet and an oil outlet, and the oil outlet is connected with a first interface P of a rear axle steering integrated valve set through a high-pressure oil pipe; the oil inlet is connected with a second interface T port 8-T of the rear axle steering integrated valve set through a low-pressure oil pipe; and the component is connected and fixed on a vehicle body attached seat through bolts. By means of the rear axle steering pump assembly and the steering system of the rear axle steering pump assembly, follow-up telescoping with a rear axle steering hydraulic cylinder can be completed during normal steering ofa rear axle.

Description

[0001] This application is a divisional application for April 22, 2019, application number 2019103219846, and the title of the invention "a rear axle steering integrated valve group and steering device". technical field [0002] The patent of the invention relates to a high-reliability electromechanical-hydraulic all-wheel steering system suitable for wheeled vehicles, which belongs to the fields of mechanical, hydraulic and motor vehicle applications. Background technique [0003] Wheeled equipment is an important part of the army's weapon equipment system, and it is an important land mobile platform for the land, sea and air forces to realize the development strategy of "global mobility, three-dimensional protection, multi-dimensional and multi-energy". Vehicle mobility, broadly speaking, refers to the ability to quickly reach space and regions, including tactical mobility and strategic / combat mobility. For wheeled vehicles, the improvement of mobility is more focused on im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/06B62D5/08B62D7/15
CPCB62D5/064B62D5/08B62D7/1572
Inventor 张勇王成玲刘富强徐晓曦李玉赵松
Owner CHINA NORTH VEHICLE RES INST
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