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A silent chain for cvt gearbox

A gearbox and silent technology, which is applied in the field of transmission chain, can solve the problems of increasing wear between chain hinge pairs, reducing transmission efficiency of transmission, increasing chain deflection, etc., to reduce internal friction, reduce polygon effect, and chain deflection Reduced effect

Active Publication Date: 2018-07-06
HANGZHOU DONGHUA CHAIN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The end faces on both sides of the pin shaft are symmetrical, so that when the transmission ratio of the continuously variable transmission changes, the deflection of the chain increases, which increases the wear between the chain hinge pairs and reduces the transmission efficiency of the transmission.

Method used

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  • A silent chain for cvt gearbox
  • A silent chain for cvt gearbox
  • A silent chain for cvt gearbox

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Embodiment Construction

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0020] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientations or positional relationships indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" are based on the attached The orientation or positional relationship shown in the figure is only for the convenience of describing the present invention and simplifying the description...

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Abstract

The invention relates to a silent chain for a CVT gearbox, which comprises a chain plate, a bent pin shaft and a short pin shaft. The chain plate is provided with a through hole, and a group of pin shafts are interspersed at both ends of the through hole. , each group of pins includes a curved pin and a short pin, the curved pin and the short pin are attached to each other, and the side of the attached side forms a rolling surface, and one end of the curved pin Bending, both ends of the bent pin have arc surfaces, the inclination angle of the arc surface at the bent end of the bent pin is 17° to 23°, and the inclination angle of the arc surface at the straight end of the bent pin is 1° ~3°, and the radius of curvature of the arc surface at the bent end is 100-170mm, and the radius of curvature of the arc surface at the straight end is 150-200mm. The invention has the beneficial effects of low noise and can reduce the volume of the CVT gearbox.

Description

technical field [0001] The invention belongs to the field of drive chains, in particular to a silent chain used for a CVT gearbox. Background technique [0002] For a long time, the key components of known CVT transmissions are chains or steel belts, and the end surfaces on both sides of the chains and steel belts are symmetrical relative to the center. The chain is composed of one or more chain plates, and its pitch is one or two pitches, and the length of the chain is arranged in an orderly manner to match the transmission ratio and center distance of the gearbox. The pin shaft is a non-circular intended pin shaft, which is positioned on the side of the positioning hole of the chain plate. There are four pin shafts in each chain plate hole, and a pair of two pins form a hinge pair where the two pin shafts roll against each other, so as to achieve durability. Grinding and noise effects. The two ends of the pin shaft are symmetrical arc surfaces, and the arc surfaces are f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16G13/06F16G15/12F16H9/24
CPCF16G13/06F16G15/12F16H9/24
Inventor 王洪军叶斌武道冯海波杨伟明邢建恒程越宣成
Owner HANGZHOU DONGHUA CHAIN GRP
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