Unlock instant, AI-driven research and patent intelligence for your innovation.

Vehicle fluid pressure linkage steering apparatus

A technology of hydraulic linkage and steering device, applied in steering mechanism, steering rod, vehicle parts, etc., can solve the problems of long longitudinal dimension, complex structure, and difficult layout of linkage device, and achieve a reliable performance with reduced wear and tear. Effect

Inactive Publication Date: 2008-04-09
HUBEI SANJIANG SPACE WANSHAN SPECIAL VEHICLE
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to reduce the wear of tires and the running performance of the vehicle, the trend of adding steering devices to the third axle and the rear axle is getting stronger and stronger, but the difficulty of adding steering devices to the rear axle is the realization of front and rear steering linkage. The traditional mechanical method is adopted, the structure is complex, the longitudinal dimension of the linkage device is long, and it is not easy to arrange

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vehicle fluid pressure linkage steering apparatus
  • Vehicle fluid pressure linkage steering apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1, as shown in Fig. 1, 2, comprises automobile chassis 9 and the front steering axle 3 that is arranged on the front portion of automobile chassis, linkage hydraulic cylinder 2 is installed on the left side of front steering axle (one bridge or two bridges), The linkage hydraulic cylinder is a single-piston rod hydraulic cylinder, one end of which is hinged to the fixed seat, which is fixedly connected to the front steering axle, and the other end of the linkage hydraulic cylinder is the piston rod end which is hinged to the steering rocker arm 1 of the front steering axle; A rear steering axle 8 (three or four axles) is installed at the rear of the automobile chassis, and a linkage steering cylinder 7 is arranged on the right side of the rear steering axle corresponding to the linkage hydraulic cylinder, which is a single piston rod hydraulic cylinder. , one end of which is hinged with the fixed seat, the fixed seat is fixedly connected with the rear steering...

Embodiment 2

[0019] Embodiment 2 As shown in Figure 3, the linked hydraulic cylinder is a three-piston four-chamber single-piston rod hydraulic cylinder with a booster cylinder, wherein the two ends of the hydraulic cylinder are linked hydraulic cylinders, which are divided into rod chambers and rodless chambers. The two sides of the middle part of the hydraulic cylinder are booster cylinders, which are divided into two pressure drive chambers by the middle piston and the left and right pistons, which are connected to the pressure liquid source through the pipeline through the reversing valve. The two pressure drive chambers are rod chambers. The role of power steering. Can cancel the former booster cylinder of automobile like this. The rest are the same as the previous embodiment.

Embodiment 3

[0020] Embodiment 3, as shown in Figure 4, is a multi-axle vehicle with rear double steering axles or rear multi-steering axles. According to the structure of embodiment 1 or 2, the synchronous linkage device formed by the linkage hydraulic cylinder and the linkage steering cylinder is paired. The configurations are installed in series on multiple rear steering axles one by one to realize the synchronous linkage of multi-axle steering.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a vehicle hydraulic link steering device, which comprises a vehicle chassis and a front steering axle arranged on the vehicle chassis; the invention is characterized in that a link hydraulic cylinder, which is a hydraulic cylinder with a single piston rod, is arranged on one side of the front steering axle; one end of the link hydraulic cylinder is connected with the steering rocker arm of the front steering axle; the other side of a rear steering axle, corresponding to the link hydraulic cylinder, is provided with a link steering cylinder which is a hydraulic cylinder with a single piston rod; one end of the link steering cylinder is connected with the steering rocker arm of the rear steering axle; the cavity with a rod and the cavity without a rod of the link hydraulic cylinder are communicated with the cavity with a rod and the cavity without a rod of the link steering cylinder by pipelines to form a loop in which two cylinders and two cavities are communicated in a closed way; with simple structure and reliable performance, the invention is convenient to be assembled and maintained; the invention can improve the operating and the steering performances of a heavy truck with a multi-axle structure and reduce the operating force of the steering; moreover, the invention also can reduce the driving resistance of vehicles and alleviate the wear of the tyres of multi-axle vehicles, thereby reducing the using cost of the vehicles.

Description

technical field [0001] The invention relates to a vehicle steering device, in particular to a hydraulic linkage steering device of a heavy-duty vehicle multi-axis steering system. Background technique [0002] In order to increase the load capacity of a truck, it is generally necessary to increase the number of axles. Adding more axles means adding more wheels. With more wheels, the driving resistance of the car will increase, the wear of the tires will increase, and the fuel consumption of the car will increase. [0003] Existing trucks generally use the front double-axle as the steering axle, the rear axle and the rear double-axle as the non-steering drive axle, and the front double-steering axle mostly adopts a relatively mature and traditional mechanical linkage method, which is mature and reliable. In order to increase the rated carrying capacity of trucks, there are more and more vehicles equipped with rear three axles or vehicles with more axles, and most of them are...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B62D7/14
Inventor 唐先兵胡晓涛林朝凤谭学位
Owner HUBEI SANJIANG SPACE WANSHAN SPECIAL VEHICLE