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Wet friction material

一种摩擦件、湿式的技术，应用在摩擦衬片、摩擦离合器、制动器的部件等方向，能够解决消耗能量等问题

Active Publication Date: 2019-04-16
AISIN CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Such drag torque dissipates unnecessary energy while the clutch is idling

Method used

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  • Wet friction material
  • Wet friction material
  • Wet friction material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0181] Wet friction member 1 of embodiment 1 (refer to figure 1 ) includes a core plate 2 and a friction portion 3 (on the main surface 2a on the front side) that is composed of a fan piece and is arranged on the main surface 2a of the core plate 2 (both surfaces of the main surface 2a on the front side and the main surface 2a on the back side). The main surface 2a on the back side has the same structure of the friction part 3). Each segment is made by impregnating a thermosetting resin (resin binder) into a fibrous substrate such as pulp and aramid fiber, a friction modifier such as cashew nut oil friction powder, and a filler such as diatomaceous earth. In the paper body and heat curing. The segments are bonded to both the front and back main surfaces of the core plate 2 by applying heat and pressure to form the friction portion 3 .

[0182]The core plate 2 is made of NCH780, and has spline internal teeth 8 formed in the shape of a gear on its inner periphery. The spline...

Embodiment 2

[0192] Wet friction member 1 of embodiment 2 (refer to figure 2 ) includes a core plate 2 and a friction portion 3 (main surface 2a on the front side and the main surface 2a on the back side) arranged on the main surface 2a of the core plate 2 (both sides of the main surface 2a on the front side and the main surface 2a on the back side). The structure of the friction part 3 is the same in the main surface 2a on the back side). The core plate 2 and the segments are the same as in the first embodiment, and the gaps formed between the friction parts 3 of the segments function as oil grooves 4 .

[0193] The friction portion 3 of the wet friction material 1 according to the second embodiment is composed of three types of friction portions 3 , namely, a first friction portion 3A, a second friction portion 3B, and a third friction portion 3C. The structures of these three kinds of friction parts 3 are the same as those of the first embodiment.

[0194] In the wet friction materia...

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PUM

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Abstract

To provide a wet friction material that succeeds in reducing dragging torque through different means than in conventional practice, this wet friction material 1 has a plurality of friction parts 3 disposed in a ring shape at intervals from each other in a core plate 2 and a main surface 2a of the core plate 2, and a plurality of oil grooves 4 formed by being divided off by the friction parts 3. The friction parts are provided with left-side walls, right-side walls, outer peripheral walls, and inner peripheral walls in plan view, and include three types of friction parts, which are first through third friction parts having different forms of side wall pairs. In each first friction part 3A, in relation to an imaginary line segment LA, a left-side wall 3AWL is slanted to the right, a right-side wall 3AWR is slanted to the left, and the length of an outer peripheral wall 3AWO is less than the length of an inner peripheral wall 3AWI. In each second friction part 3B, in relation to an imaginary line segment LB, a pair of side walls 3BWL and 3BWR are both slanted to the right. In each third friction part 3C, in relation to an imaginary line segment LC, a pair of side walls 3CWL and 3CWR are both slanted to the left.

Description

technical field [0001] The invention relates to a wet friction piece. More specifically, it relates to a wet friction material that can be used in the presence of oil, and the wet friction material can be attached to a wet clutch, a wet brake, and the like. Background technique [0002] Conventionally, wet clutches and wet brakes using wet friction members have been used for torque transmission, braking, and the like. For example, in automatic transmissions such as automobiles, wet friction materials are used in wet hydraulic clutches. [0003] The wet hydraulic clutch has a structure in which a plurality of wet friction members and a plurality of separators are alternately arranged with a small gap, and the torque is transmitted or not transmitted by pressing or separating the two. In the clutch, lubricating oil is supplied for the purpose of reducing the friction of the wet friction elements during the pressing or separating process, absorbing frictional heat generated b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/00F16D13/62F16D65/092
CPCF16D13/74F16D13/64F16D65/127F16D65/128F16D2065/1364F16D2069/0466F16D69/026F16D2200/0095F16D13/72F16D65/092F16D69/00F16D2069/004
Inventor 星野亮平
Owner AISIN CHEM CO LTD