Inverted tooth chain and sprocket drive system with reduced meshing impact

A sprocket-driven, toothed chain technology used in belts/chains/gears, transmission chains, transmissions, etc.

Inactive Publication Date: 2012-10-24
CLOYES GEAR & PRODS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing system does not substantially alter the existing sprocket tooth pressure angle to optimize

Method used

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  • Inverted tooth chain and sprocket drive system with reduced meshing impact
  • Inverted tooth chain and sprocket drive system with reduced meshing impact
  • Inverted tooth chain and sprocket drive system with reduced meshing impact

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Embodiment Construction

[0072] Figure 5 is an enlarged schematic view of the first and second rows of an inside-side-engaged toothed chain 110 formed in accordance with the present invention (chain guide blades not shown), showing the preferred inside-side projection Lambda (λ) and the outside-side contour. Figure 5A for Figure 5 An enlarged view of middle detail area 5A showing the inner side protrusion λT relative to the outer side ramp 138 near the link tooth tip 139 . Figure 5B To include according to the present invention, Figure 5 An isometric view of a length of chain of link plates is shown, thereby forming the toothed chain 110 .

[0073] Chain 110 includes rows or rows 130a, 130b, 130c, etc., of interleaved inner links or link plates 130, each of which includes a pair of teeth 134 having an outer side 137 and an inner side 136, and, between teeth 134, A crotch 135 is formed between the medial sides 136 . Teeth 134 have respective tips or tips 139 . Each link piece 130 has two hol...

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PUM

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Abstract

An inverted tooth chain and sprocket drive system in which the initial contact distance ICD, the meshing impact angle Sigma (s), the link plate entrance angle Beta (ss), and other aspects of the meshing geometry are controlled and optimized to reduce noise and vibration by using a particular chain link plate form and, in preferred cases, by modifying the sprocket tooth pressure angle. The system can include first and second sprockets for which the pressure angle can be controlled to ensure that the desired values for the initial contact distance ICD, the meshing impact angle Sigma (s), and the link plate entrance angle Beta (ss) are equal for both sprockets even though the sprockets have different tooth counts. For a chain pitch P in the range of 6.35mm to 7.7mm, the initial contact distance IC0 is controlled such that 0.49P = IC0 = 0.53P, the meshing impact angle Sigma (s) is controlled such that s < 34 DEG , and the link plate entrance angle Beta (ss) is controlled such that ss = 9 DEG . For certain chain and sprocket configurations, s < 31 DEG and ss < 7 DEG .

Description

[0001] Cross References to Related Applications [0002] This application is a continuation of U.S. Patent Application Serial No. 12 / 556,332 filed September 9, 2009 (09 / 09 / 2009), which claims ) on the filing date of U.S. Provisional Application Serial No. 61 / 095,393 and the benefit thereof, and the entire disclosures of these earlier applications are expressly incorporated herein by reference. Background technique [0003] Toothed chains 10 have long been used in automation applications to transmit power and motion between shafts, and as figure 1 As shown, it is generally constructed as an endless chain by interleaving rows or rows 30a, 30b, etc. of link plates 30, each link plate 30 having a pair of teeth 34 having an outboard side 37 and an inboard side 36, between each tooth A crotch 35 is formed between them, and each link plate 30 has two holes 32 aligned on the row of links to receive connecting pins 40 (such as round pins, rocker joints, etc.) and driveably engages th...

Claims

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Application Information

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IPC IPC(8): F16G13/04F16H7/06F16G3/04
CPCF16H7/06F16H55/08F16H55/30F16G13/04F16H2055/306
Inventor 达伦·J·斯图尔特詹姆斯·D·杨
Owner CLOYES GEAR & PRODS INC
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