double arm tensioner
A tensioner, double-arm technology, applied in transmissions, belts/chains/gears, mechanical equipment, etc., can solve the problems of inability to supplement the damping wear amount, small damping, large tension arm swing, etc., to improve NVH The effect of performance, small footprint, and large damping value
Active Publication Date: 2022-04-26
DONGFENG MOTOR CO LTD
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Problems solved by technology
[0002] An existing tensioner: larger in size; the tension arm has a large swing and requires a large space for the working range; when the ENG starts, it is easy to fall off the belt, causing noise, poor NVH performance, and there is a risk of the belt coming off
[0003] Another existing tensioner: high cost of leaf spring; no disc spring inside, friction torque generated by pre-tightening force, small damping, large swing range of tensioner, poor idle NVH performance, and risk of belt slipping; durable After that, the amount of damping wear cannot be supplemented, and NVH will further deteriorate
Method used
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[0038] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.
[0039] It is easy to understand that, according to the technical solutions of the present invention, without changing the essential spirit of the present invention, those of ordinary skill in the art can replace various structural modes and implementation modes with each other. Therefore, the following specific embodiments and accompanying drawings are only exemplary descriptions of the technical solutions of the present invention, and should not be regarded as all of the present invention or as limitations or restrictions on the technical solutions of the invention.
[0040] Orientation terms such as up, down, left, right, front, rear, front, back, top, bottom, etc. mentioned or possibly mentioned in this specification are defined relative to the configurations shown in the respective drawings, which are It is a relative concept, so it may ch...
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The invention discloses a double-arm tensioner, which comprises a casing, a left tension arm, a right tension arm, a cover plate, a first tension wheel and a second tension wheel, the left tension arm and the The right tensioning arm is circular and coaxially arranged, the left tensioning arm and the right tensioning arm are installed between the housing and the cover plate, and the first tensioning wheel is installed on the On the left tension arm, the second tension wheel is mounted on the right tension arm, and an adjustable damping structure is provided between the left tension arm and the right tension arm. In some embodiments of the present invention, since the left tension arm and the right tension arm are circular and coaxially arranged, the space occupied during operation is small; and an adjustable damping is provided between the left tension arm and the right tension arm The structure, when the damping wears out, can be adjusted to increase the damping.
Description
technical field [0001] The invention relates to the technical field of automobiles, in particular to a double-arm tensioner. Background technique [0002] The existing tensioner is larger in size; the swing of the tensioning arm is large, and the working range needs a large space; when the ENG is started, it is easy to fall off the belt, causing noise, poor NVH performance, and there is a risk of the belt coming off. [0003] Another existing tensioner: the cost of the leaf spring is high; there is no inner disc spring, the friction torque is generated by the preload, the damping is small, and the tensioner swings greatly, the idle speed NVH performance is poor, and there is a risk of the belt coming out; durable After that, the damping wear amount cannot be supplemented, and the NVH will further deteriorate. [0004] Therefore, it is necessary to design a double-arm tensioner with a larger damping value, which can improve the NVH performance, occupy a small space during op...
Claims
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IPC IPC(8): F16H7/12
CPCF16H7/1218F16H2007/0806F16H2007/0842F16H2007/0865F16H2007/0874F16H2007/088F16H2007/0893
Inventor 魏玉明郑炼周敬尧韦懿庭
Owner DONGFENG MOTOR CO LTD