Automobile electric power variable-steering-tooth-ratio steering rack
Automobile electric power variable-steering-tooth-ratio steering rack
The invention relates to an automobile electric power variable-steering-tooth-ratio steering rack which comprises a variable-pitch rack body, a row of meshing teeth are arranged on the variable-pitch rack body, and the tooth spaces of the meshing teeth are arranged in a sparse, dense and sparse mode, including a middle small-transmission-ratio section (a), transition sections (b) symmetrically arranged on the two sides of the small-transmission-ratio section (a), and large-transmission-ratio sections (c) symmetrically arranged on the outer sides of the transition sections (b). By means of sparse, dense and sparse arrangement, stable driving can be kept at a high speed, lane changing is sensitive at a low speed, and therefore better controllability is achieved during parking. The lower transmission ratio of the central part of the rack can ensure smooth steering action in the initial stage of steering operation, and the higher transmission ratios of the two ends of the rack ensure that quick response can be obtained in the steering operation when the steering angle is larger, so that the operation of the limit steering angle is easier.
本发明涉及一种汽车电动助力可变转向齿比转向齿条，该齿条包括变节距齿条本体，所述变节距齿条本体上设有一排啮合齿，所述的啮合齿的齿间距按疏、密、疏形式排布，包括中间的小传动比段(a)、对称设于所述小传动比段(a)两侧的过渡段(b)、以及对称设于所述过渡段(b)外侧的大传动比段(c)。本发明通过疏、密、疏形式排布，在高速时有助于保持驾驶稳定，低速时变道灵敏，从而使停车时具有更好的操控性。齿条中心部分的较低传动比可确保在转向操作初始阶段流畅转向动作，齿条两端较高的传动比确保在较大转向角时可在转向操作中获得快速响应，使极限转向角的操作更加容易。
Dokumentinformationen
Automobile electric power variable-steering-tooth-ratio steering rack
一种汽车电动助力可变转向齿比转向齿条
2021-10-08
Patent
Elektronische Ressource
Chinesisch
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