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Friction clutch

A technology of friction clutch and friction clutch, which is applied in the field of clutches, can solve problems such as low friction coefficient, not necessarily able to provide performance, excellent friction disc, etc., and achieve high friction coefficient, stable torque transmission, and the effect of wear suppression

Inactive Publication Date: 2012-05-09
AKROS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] However, in the case of using only carbon / graphite materials such as CC composite materials for friction discs, the problem of low friction coefficient in the low-temperature region cannot be solved, and even when using a combination of carbon / graphite materials and metal / ceramic materials Even when dissimilar materials make up the friction surface, it may not be possible to provide a friction disk with excellent performance. It is necessary to maintain a high friction coefficient over a wide range of friction surface pressure in the friction disk, suppress the amount of wear to a low degree, and realize Friction clutch for stable torque transmission

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 101～110

[0092] A CC composite material is used as the carbon / graphite material, and a steel material is used as the metal / ceramic material. Furthermore, the area ratio a of the friction surface was changed from 3% to 75%, and ten types of friction disk assemblies as Examples 101 to 110 were prepared. Table 1 shows a list of the above samples.

[0093] [Table 1]

[0094] Table 1 Material composition of the clutch friction surface used in the test (Part 1)

[0095]

Embodiment 201～210

[0097]A CC composite material was used as the carbon / graphite material, and brass was used as the metal / ceramic material. Furthermore, as in the case of Examples 101 to 110, the area ratio a of the friction surface was changed from 3% to 75%, and ten types of friction disk assemblies as Examples 201 to 210 were prepared. Table 2 shows a list of the above samples.

[0098] [Table 2]

[0099] Table 2 Material composition of the clutch friction surface used in the test (Part 2)

[0100]

Embodiment 301～310

[0102] A CC composite material is used as the carbon / graphite material, and copper is used as the metal / ceramic material. Furthermore, as in the case of Examples 101 to 110, the area ratio a of the friction surface was changed from 3% to 75%, and ten types of friction disk assemblies as Examples 301 to 310 were prepared. Table 3 shows a list of the above samples.

[0103] [table 3]

[0104] Table 3 Material composition of the clutch friction surface used in the test (Part 3)

[0105]

[0106] In addition, various factors of the friction disk assembly used here are as follows.

[0107] The shape of the friction disc assembly: such as figure 2 , 3 , the form shown in 5

[0108] The shape of the friction plate: it is divided into 3 parts on the circumference, fan shape

[0109] Outer diameter: 240mm

[0110] Inside diameter: 160mm

[0111] Friction disc thickness: 7.8mm

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Abstract

Provided is a friction clutch which includes a carbon / graphite material such as a CC composite and hence can show a stable power transmission function over a wide range of areal friction pressure. Also provided is a friction disk assembly usable in the friction clutch. The friction clutch includes a friction disk assembly configured of a center hub part and a friction disk. The friction disk is equipped with a first frictional surface and a second frictional surface. The friction clutch further includes: a flywheel which faces the first frictional surface and is equipped with a third frictional surface; and a pressure plate which faces the second frictional surface and is equipped with a fourth frictional surface. At least one of the first to the fourth frictional surfaces is constituted of a combination of different materials which are a carbon / graphite material and a metal / ceramic material. The carbon / graphite material forms a carbon / graphite material-based frictional surface, and the metal / ceramic material forms a metal / ceramic material-based frictional surface. The ratio of the area of the metal / ceramic material-based frictional surface to the total area of the carbon / graphite material-based frictional surface and the metal / ceramic material-based frictional surface is 0.05-0.65, and the areal pressures between the first frictional surface and the third frictional surface and between the second frictional surface and the fourth frictional surface during power transmission are 10-250 N / cm2 each.

Description

technical field [0001] The present invention relates to a clutch for discontinuous power transmission from the driving side to the driven side, and more specifically, to a clutch suitable for a power generation source such as a four-wheeled automobile or a two-wheeled vehicle (motorcycle or a bicycle with a prime mover, etc.) Friction clutches of vehicles, etc. Background technique [0002] A clutch is often used as a member that interrupts power from a power generation source such as an engine of an automobile through mechanical contact. A friction clutch is a component that transmits power by using the frictional force between two surfaces. The power is transmitted by making the two surfaces contact each other, and the transmission of the power is interrupted by separating the two surfaces. This friction clutch is often used in automobiles (including four-wheeled vehicles and two-wheeled vehicles) and the like because it can smoothly perform power interruption and the lik...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D13/62
CPCF16D2300/10F16D13/62F16D13/70F16D13/64
Inventor 中川隆夫佐藤裕贵鸟之海章松村和
Owner AKROS
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