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Compound power-assisted steering mechanism

A technology of power-assisted steering and power-assisted motors, which is applied to power steering mechanisms, steering mechanisms, electric steering mechanisms, etc., can solve problems such as inability to meet the matching requirements of large vehicles, and achieve the effects of increasing the scope of application, improving comfort, and improving driving safety

Inactive Publication Date: 2018-03-09
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of motor power and structural strength, the electronic power steering system is applicable to vehicles with a front axle load of less than 1.5T. At present, it is mainly used in cars and small trucks, and cannot meet the matching requirements of large vehicles.

Method used

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  • Compound power-assisted steering mechanism
  • Compound power-assisted steering mechanism
  • Compound power-assisted steering mechanism

Examples

Experimental program
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Embodiment Construction

[0018] The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0019] Embodiments of the present invention: as figure 1 and image 3 As shown, a compound power steering mechanism includes a steering column 1, a steering shaft 2 and a steering gear 3, the steering column 1 is connected to the steering gear 3 through the steering shaft 2, and also includes an electronic power assist device 4 and a hydraulic power assist device 5, The steering gear 3 includes a steering gear cylinder 6, a gear shaft, a rack 7, a piston 8 and a rotary valve 9, the rack 7 is arranged in the steering gear cylinder 6, the piston 8 is fixedly arranged on the rack 7, and the steering gear cylinder 6 is formed There is a gear shaft installation case 10, the rotary valve 9 is installed on the gear shaft installation case 10, the gear shaft is installed in the gear shaft installati...

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Abstract

The invention discloses a compound power-assisted steering mechanism. The compound power-assisted steering mechanism comprises a steering column, a steering shaft, a steering gear, an electric power assisting device and a hydraulic power assisting device, wherein the steering column is connected with the steering gear through the steering shaft; the steering gear comprises a steering gear oil cylinder, a gear shaft, a rack, a piston and a rotary valve, the rack is arranged in the steering gear oil cylinder, the piston is fixedly arranged on the rack, a gear shaft mounting casing is formed on the steering gear oil cylinder, the rotary valve is mounted on the gear shaft mounting casing, the gear shaft is mounted in the gear shaft mounting casing, one end of the gear shaft is meshed with therack, and the other end of the gear shaft is connected with the steering shaft through the rotary valve; the rotary valve is connected with the hydraulic power assisting device and the steering gear oil cylinder through hydraulic oil pipes; the electronic power assisting device is arranged on the steering column. According to the compound power-assisted steering mechanism, power assisting steeringcan be adjusted according to vehicle velocity, an automatic returning function is realized, and driving comfort is improved.

Description

technical field [0001] The invention relates to a steering mechanism, in particular to a compound power steering mechanism. Background technique [0002] From the birth of the first car to the present, the car steering system has roughly gone through three stages: pure mechanical steering system, hydraulic power steering system, and electric power steering system. [0003] The purely mechanical steering system, that is, the driver turns the large-diameter steering wheel to generate high-torque steering to control the driving direction of the car. Steering force is heavy when turning on the ground, and light when driving at high speed. The steering force cannot be controlled with the speed. Therefore, the pure mechanical steering system has been gradually eliminated. [0004] The hydraulic power steering system is a hydraulic system added on the basis of the mechanical steering system. It is usually composed of hydraulic pumps, oil pipes, pressure flow control valves, oil st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04B62D5/06B62D3/12B62D3/04
CPCB62D5/0421B62D3/04B62D3/12B62D5/061
Inventor 张奇奇高龙柳强
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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