Limiting structure of gear shifting pulling head

Abstract

The invention discloses a limiting structure of a gear shifting pulling head. The limiting structure comprises a magnet, a gear shifting shell, the gear shifting pulling head, a piston rod and a limiting partition plate, wherein the limiting partition plate is additionally arranged at the lower end of the gear shifting shell, a hollowed-out structure used for limiting is formed in the limiting partition plate, and the lower portion of the gear shifting pulling head penetrates through the hollowed-out structure. The pulling head acts stably in the gear shifting process, the pulling head is prevented from rotating and shaking, and the gear shifting function failure of a gear shifting executing mechanism is avoided. The limiting partition plate is convenient to disassemble and high in adaptability, adaptive development can be made according to the shapes and the number of the gear shifting pulling heads, and meanwhile normal work of the pulling heads of different shapes and numbers is met. The limiting partition plate separates splashing lubricating oil liquid from the magnet on the pulling head, so that the magnet is prevented from adsorbing scrap iron in the oil liquid, the measurement precision is guaranteed, and the problems that gear shifting is not accurate enough, the measurement precision is reduced or even fails due to the fact that the magnet on the pulling head adsorbs the scrap iron in the oil liquid due to magnetism, and a sensor breaks down are solved.

Description

technical field [0001] The invention belongs to the field of vehicle parts and relates to a position-limiting structure of a shift pull head. Background technique [0002] With the development of intelligent technology, automatic mechanical transmissions ushered in a blowout growth. On the shift actuator of an automatic transmission, the shift head is directly connected to the piston rod, which itself does not have the limit function to prevent rotation, and can even rotate 360° around the piston rod, requiring the help of other structures or parts Ensure the stability and reliability during the shifting process. On the other hand, in order to accurately measure the shifting displacement, a magnet is often installed on the shifting head, and the displacement is measured by monitoring the magnetic field strength through a displacement sensor. However, the magnet often magnetically absorbs iron filings in the oil, resulting in a decrease in measurement accuracy. Even failure...

AI Technical Summary

Problems solved by technology

On the other hand, in order to accurately measure the shifting displacement, a magnet is often installed on the shifting head, and the displacement sensor is used to monitor the magnetic field strength to measure the displacement. However, the magnet often attracts iron filings in the oil and the measurement accuracy is reduced. Even failure, causing sensor failure

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