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Roller chain transmission device

A transmission device and roller chain technology, applied in the direction of transmission device, transmission chain, belt/chain/gear, etc., can solve the problems of damage to the durability of the transmission mechanism, large meshing impact force, meshing vibration, etc., to prevent partial wear and reduce Mesh start noise, durability improvement effect

Inactive Publication Date: 2007-11-28
TSUBAKIMOTO CHAIN CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, as shown in FIG. 14 , the above-mentioned conventional roller chain is designed so that when the sprocket 520 starts meshing with the sprocket teeth 521, the cylindrical roller 511 moves in the tooth width direction of the sprocket teeth 521 with Engage in a straight line state, that is, design to engage on the generatrix of the cylindrical roller 511, in other words, design to engage with the roller chain at the same timing in the tooth width direction of the sprocket teeth 512. The 510 meshes in the same direction as the traveling direction, so the meshing of the two starts simultaneously and instantaneously, and a large meshing impact force and accompanying meshing vibration occur, which not only becomes the main cause of transmission noise, but also greatly damages the transmission. Institutional durability issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] First, the roller chain transmission device 100 of the first embodiment of the present invention is used to transmit power as a synchronous transmission system of an automobile engine as shown in FIGS. , and a sprocket 120 having a plurality of sprocket teeth 121 disposed on the driving crank side and the driven cam side, around which the roller chain 110 is wound.

[0062] In addition, reference sign L in FIG. 1 is a tension rod for adjusting the chain tension of the roller chain 110, reference sign T is a tensioner for applying force to the tension rod L, and reference sign G is a A guide rod for guiding the travel of the roller chain 110 .

[0063] 3, the roller chain 110 used in this embodiment has the above-mentioned roller 111, a bushing 112 rotatably fitted on the roller 111, and both ends of the bushing 112 are press-fitted. A pair of left and right inner plates 113 held by the bushing holes 113a, connecting pins 114 protruding loosely fitted in the bushings 11...

Embodiment 2

[0080] Next, a roller chain transmission 200 according to a second embodiment of the present invention will be described in detail with reference to FIGS. 8 to 9 .

[0081] Here, the roller chain transmission device 200 of the second embodiment of the present invention is different from the roller chain transmission device 100 of the above-mentioned first embodiment in the form of the rollers 211 of the roller chain 210, and other configurations are basically Since they are the same, the reference numerals starting with 100 in the roller chain transmission device 100 of the first embodiment are replaced with those starting with 200 for substantially the same configuration, and the description thereof is substituted.

[0082] That is, the rollers 211 of the roller chain 210 each have a roller-shaped roller outer peripheral surface 211a whose outer peripheral diameter gradually decreases toward the left and right roller ends, and the sprocket teeth 221 of the sprocket 220 have T...

Embodiment 3

[0090] Next, a roller chain transmission 300 according to a third embodiment of the present invention will be described in detail with reference to FIGS. 10 to 11 .

[0091] Here, the roller chain transmission device 300 of the third embodiment of the present invention is different from the roller chain transmission device 100 of the above-mentioned first embodiment in that the rollers 311 of the roller chain 310 are configured differently, and other configurations are basically Since they are the same, the reference numerals starting with 100 in the roller chain transmission 100 of the first embodiment are replaced with those starting with 300 for substantially the same configuration, and the description thereof is substituted.

[0092] That is, the rollers 311 of the most characteristic roller chain 310 of the roller chain transmission 300 of the third embodiment of the present invention have a pair of tapered rollers 311A, 311A ​​separated from each other on the left and rig...

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PUM

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Abstract

To provide a roller chain transmission device which restrains meshing impact force and meshing vibration in starting meshing so as to reduce meshing start noise, and remarkably improves durability of a transmission mechanism. In the roller chain transmission device 100, a roller 111 of the roller chain 110 is provided with a barrel type roller outer peripheral surface 111a gradually decreased in roller outer peripheral diameter as it goes toward right and left roller end parts, and a sprocket tooth 121 meshing with the roller 111 of the roller chain 110 is provided with a sprocket tooth flank 121a which meshes with the barrel type roller outer peripheral surface 111a by projecting and recessed engagement, and which is curved at least in the face width direction.

Description

technical field [0001] The present invention relates to a roller chain transmission used in power transmission mechanisms of automobiles, industrial machines, etc., and particularly relates to a roller chain transmission suitable for synchronous transmission of automobile engines. Background technique [0002] Generally, as a transmission in a power transmission mechanism using an automobile engine or the like, a roller chain transmission using rollers having high-load transmission characteristics, high-speed transmission characteristics, wear-resistant extension characteristics, etc. is used. child chain. [0003] A conventional roller chain transmission device includes: a roller chain 510 in which a plurality of rollers 511 are respectively rotatably fitted on a bushing 512; A plurality of sprocket teeth 521 meshed with the child 511 and arranged on the driving side and the driven side, by transmitting the rotation of the sprocket 520 arranged on the driving side to the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H7/06F16G13/06
CPCF16G13/06F16H7/06F16H55/30
Inventor 佐仓俊儿平井晶青木敏彦
Owner TSUBAKIMOTO CHAIN CO