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Half-integral type automobile dynamic redirector

A technology of automobile power steering and automobile steering gear, which is applied in the direction of power steering mechanism, steering mechanism, vehicle parts, etc., which can solve the problems of many parts, poor centering performance, high assembly requirements, etc., and achieve less number of parts and convenient processing , Steering sensitive effect

Active Publication Date: 2008-07-23
CHONGQING JIGONG AUTOMOBILE POWER STEERING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the semi-integral automotive power steering is used on the spool steering control valve, and this semi-integral automotive power steering has a complex structure, many parts, difficult processing, high assembly requirements, and the spool steering control Most of the elastic elements used in the steering gear are cylindrical coil springs, which make the steering lag of the automobile power steering gear and the performance of returning to the center is poor.

Method used

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  • Half-integral type automobile dynamic redirector
  • Half-integral type automobile dynamic redirector
  • Half-integral type automobile dynamic redirector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: see Fig. 1, figure 2 , a semi-integral automobile power steering gear, comprising an automobile steering gear, a steering control valve, characterized in that: the steering control valve is a rotary valve steering control valve.

[0033] The semi-integrated automobile power steering gear of this embodiment is characterized in that: the automobile steering gear includes a steering gear housing assembly 1, a steering gear side cover assembly 2, the steering gear housing assembly 1 and a steering gear The input shaft assembly 10 set in the space formed by the side cover assembly 2, the steering screw sleeve 11 outside the input shaft assembly 10, and the steering screw 12 on the steering screw sleeve 11 are connected through circulating steel balls 5. An integrated steering nut assembly 4 and a gear fan rocker shaft assembly 3 meshing with the steering nut assembly 4 .

[0034] In this embodiment, the upper steering control valve 8 and the lower steering contr...

Embodiment 2

[0036] Example 2: see Figure 16 , the semi-integral automotive power steering gear of this embodiment is only provided with the upper steering control valve 8 at the upper end of the steering gear housing assembly 1, and the steering screw sleeve 11 is formed by the steering screw 12 at the lower part thereof. The integral piece formed with the upper valve sleeve 8b on the upper part, the input shaft 13 is only the upper valve core 8c provided on the upper part, the lower end cover 26 is fixed and screwed to the lower end of the steering gear housing assembly 1, and the rest Structure is identical with embodiment 1.

Embodiment 3

[0037] Embodiment 3: see Figure 17 , the semi-integral automobile power steering gear of the present embodiment is only provided with the upper steering control valve 9 at the lower end of the steering gear housing assembly 1, and the steering screw sleeve 11 is formed by the steering screw rod 12 on the upper part thereof. The integral piece formed with the upper valve sleeve 9b at the lower part, the lower valve core 9c provided at the lower part of the input shaft 13, the upper end cover 25 and the upper end of the steering gear housing assembly 1 are fixed and screwed together, the The upper cover screw plug 6 is threadedly connected with the upper part of the upper end cover 25 for sealing, and the rest of the structure is the same as that of Embodiment 1.

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Abstract

The invention relates to a semi-integrated vehicle power steering device, which comprises: a steering device, a steering control valve. And it is characterized in that: the steering control valve is the rotation valve steering control valve, while said control valve is the upper steering control valve 8 or / and lower steering control valve 9. The invention has simple structure, less elements, and high steering sensitivity, which can be used to steer the vehicle and heavy wheel vehicle.

Description

technical field [0001] The invention relates to an automobile power steering gear, in particular to a semi-integral automobile power steering gear. Background technique [0002] Automobile power steering gear is usually composed of three parts: automobile steering gear, steering control valve, and steering power cylinder. The car steering gear and the steering control valve are assembled as a whole, which is called a semi-integrated car power steering gear, which is mainly used in multi-axis steering and super heavy-duty cars. Among them, the role of the steering control valve is to change the flow direction of the hydraulic oil according to the steering needs of the wheeled vehicle, and finally promote the hydraulic pressure of the steering power cylinder to push the steering wheel to swing to realize the steering of the vehicle. The most important parts in the steering control valve are the spool and valve sleeve of the control valve. The sliding of the spool and valve sl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D5/083
Inventor 纪国庆牛永春
Owner CHONGQING JIGONG AUTOMOBILE POWER STEERING
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