A two-way tensioner based on a linkage mechanism

By placing the pivot shaft at the base in the tensioner structure and utilizing linkage mechanisms and damping components, the problems of complexity and single force transmission path in existing tensioner structures are solved, achieving greater installation flexibility and adaptability, and making it suitable for motor-generator drive systems in hybrid vehicles.

CN122407751APending Publication Date: 2026-07-17JIANGSU ARTIN-TECH AUTOMOTIVE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU ARTIN-TECH AUTOMOTIVE CO LTD
Filing Date
2026-04-03
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing tensioner structures, the pivot axis of the tensioner arm is set on the ring-shaped component, which makes the installation position, angle and movement trajectory highly dependent on the geometry of the ring-shaped component. This increases the structural complexity and machining accuracy requirements, and the force transmission path is singular, which limits the adaptability and system integration of the tensioner under different working conditions.

Method used

The pivot of the tensioner arm is set on a fixed base, and the movement and torque of the arm are transmitted to the ring or the second pulley through a linkage mechanism. The tensioner arm and linkage are designed to rotate independently, and damping components are added to adjust the tensioning characteristics, thus creating a completely new force transmission path.

Benefits of technology

It simplifies the structural complexity of the ring component, improves installation flexibility and system integration, enhances the adaptability and adjustment flexibility of the tensioner under different working conditions, and is suitable for motor-generator drive systems of various vehicle platforms and different layouts.

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Abstract

The application relates to the technical field of tensioners, in particular to a bidirectional tensioner based on a connecting rod mechanism, which comprises a base, a ring-shaped piece, a first tensioner arm, a second tensioner arm, a connecting rod, a first tensioner pulley, a second tensioner pulley and a spring. The base has a first pivot center and a second pivot center and can be installed to a power device; the ring-shaped piece is rotatably installed to the second pivot center of the base; the first tensioner arm and the second tensioner arm are both independently rotatably installed to the same first pivot center of the base; the connecting rod is connected between the second tensioner arm and the ring-shaped piece; and the spring is connected between the first tensioner arm and the second tensioner arm. The application directly installs two tensioner arms to the base, and transmits the movement of the arms to the ring-shaped piece through the connecting rod mechanism, thereby solving the problems of poor installation flexibility and complex structure of the ring-shaped piece caused by the installation of the tensioner arms to the ring-shaped piece in the prior art.
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