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Elastic coupling

An adapter and elastic technology, applied in the direction of elastic couplings, couplings, mechanical equipment, etc., can solve the problems of poor expansion performance, difficult processing, expensive manufacturing cost of metal built-in rings, etc., and achieve the effect of chemical stability

Inactive Publication Date: 2012-02-01
HACKFORTH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Such metal inner rings are expensive to manufacture and, due to their completely different mechanical properties, are only poorly matched to the expansion properties of the rubber-elastic embedded substance
Therefore, in order to manufacture elastic adapters of different durometers, it is always necessary to work with rubber-elastic substances of different durometers, the harder these substances are, the more difficult their machining is.

Method used

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  • Elastic coupling
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Examples

Experimental program
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Embodiment Construction

[0014] exist figure 1 In , the hub of the adapter, which is substantially made of rigid material, is denoted by reference numeral 1 . The hub is surrounded by an outer ring 2 of rubber-elastic material, preferably silicone rubber. The outer ring has a toothing 4 provided with a semicircular concave profile 3 on the outer circumference. Engagement elements for torque transmission, not shown in detail in the figures, can engage in these recessed profiles 3 of the toothing 4 .

[0015] An inner ring 5 made of a partially crystalline thermoplastic polymer, preferably polyamide, is embedded in the outer ring 2 . This polymer has substantially the same density as the rubber elastic material used to form the outer ring 2 .

[0016] The inner ring 5 has an outer contour 6 which follows the outer contour of the toothing 4 of the outer ring 2 in such a way that the two contours join each other as viewed in the circumferential direction and have the same shape as seen almost everywher...

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PUM

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Abstract

The invention relates to a rotationally symmetrical elastic coupling having an annular hub (1) which is composed of a substantially rigid material and which is surrounded by an outer ring (2) composed of soft, resiliently elastic material, wherein an inlay ring (5) composed of a substantially rigid material is embedded in the outer ring (2). In order, in a coupling of said type, to be able to vary the stiffness of the coupling in a wide range of variation and in a finely graduated manner at low cost despite the use of a permanently soft, resiliently elastic material for the outer ring (2), the invention proposes that the inlay ring be composed of a partially crystalline thermoplastic polymer. Said polymer expediently has substantially the same density as the resiliently elastic material, and is preferably a polyamide.

Description

technical field [0001] The invention relates to a rotationally symmetrical elastic coupling having an annular hub made of substantially rigid material and surrounded by an outer ring made of soft rubber-elastic material, wherein in the outer ring A built-in ring of substantially rigid material is embedded. Background technique [0002] In an adapter of the above-mentioned type known from the prior art (cf. EP1 330 613 B1), the inner ring for stiffening and stiffening the outer ring consists of a metal strip material provided with a semicircular concave profile . Furthermore, it is known from GB 2 101 709 A to reinforce the outer ring of the adapter made of rubber-elastic material with an embedded fully rigid metal ring. [0003] Metal inserts of this type are expensive to produce and, due to their very different mechanical properties, are only poorly adapted to the expansion properties of the rubber-elastic insert mass. Therefore, in order to produce elastic adapters of d...

Claims

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Application Information

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IPC IPC(8): F16D3/76
CPCF16D3/76
Inventor J·弗林特罗普O·特勒斯特
Owner HACKFORTH GMBH