Double-cylinder recirculating ball power steering gear

A technology of power steering gear and recirculating ball, which is applied in the direction of mechanical steering gear and fluid steering mechanism to achieve the effect of increasing the output torque, meeting the needs of use, and reducing production and post-maintenance costs

Inactive Publication Date: 2019-10-01
QUANXING MACHINING GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims to solve the problems described above

Method used

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  • Double-cylinder recirculating ball power steering gear
  • Double-cylinder recirculating ball power steering gear

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Embodiment Construction

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0019] In the present invention, two steering nuts are provided for the rocker shaft, so that the two steering nuts simultaneously drive the steering operation of the ...

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Abstract

The invention provides a double-cylinder recirculating ball power steering gear which comprises a shell, a rockshaft, a first steering nut and a second steering nut, wherein the shell comprises a first main cylinder, a second main cylinder and a main cavity. The first steering nut is arranged in the first main cylinder, the second steering nut is arranged in the second main cylinder, the rockshaftis arranged in the main cavity, and the first and second steering nuts are in engaged transmission to the rockshaft. According to the double-cylinder recirculating ball power steering gear provided by the invention, by additionally arranging the main cylinder and the steering nuts, the output torque of the steering gear and the whole vehicle application range are increased effectively, the usingdemands on heavy trucks and engineering vehicles are met, the service life of the recirculating ball power steering gear is prolonged, and the production and the post maintenance costs are lowered.

Description

technical field [0001] The invention relates to the technical field of automobile steering equipment, in particular to the technical field of a steering gear. Background technique [0002] Existing recirculating ball power steering gears are all driven by a steering nut to rotate a rocker shaft, and then drive the steering drop arm to rotate, and the steering drop arm drives the horizontal and vertical tie rods to drive the wheels to rotate, thereby realizing automobile steering. However, in vehicles with heavy front axle loads such as heavy trucks or engineering vehicles, the recirculating ball power steering gear of the existing structure has the problem of insufficient output torque, which is manifested as heavy steering on the whole vehicle. The solution approach under the prior art comprises following two kinds: [0003] One is to increase the operating oil pressure of the steering gear, but under high pressure, the service life of the seals of the steering gear is sev...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D3/08B62D5/24
CPCB62D5/24B62D3/08
Inventor 彭传敏宣建锋吴满
Owner QUANXING MACHINING GRP
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