DE2365324A1 - Disc spring set with adjusted rounding-off radii - reduces hysteresis effects during compression of spring set - Google Patents

Abstract

The rounding-off radii of the plate springs in the set are altered, to differ from the standard specification. This improves the spring guidance and reduces the hysteresis during compression. The ratio for the measurement of the radii ra; rb:rc is defined according to a specified table. The disc spring set is intended for mounting using a guide bolt. The spring is slightly dished and has a hole in the centre. When the spring is compressed it is made flatter.

Description

Christian Bauer KG factory
7063 Welzheim

Disc spring set.

The invention relates to a set of disc springs », a.B · the type of production group 2 and 3 according to DIH 2093 »

This standard prescribes the instructions for the specialist

Rounded edges on the inside diameter. The norm leaves it is therefore up to the manufacturers to break the edges as they see fit. Based on this, the. The task of inventors is to convey new lessons to practice with inventive suggestions. According to the invention the rounding radii were redefined, aum! purpose, Improve the spring guidance, therefore, to reduce the hysteresis when springing. The inventive one Solution of the problem set by the applicant defines ratio values that deviate from the known standard for dimensioning the radius of curvature

^r a ^{8 r} b

according to the following table:

509824/0199

KJ * 1, 0 Li / 3 l's. - α / Ξ '.;, · -' ϋ. _ 1.1 -> ι - y - - 1.2 0.2 - ö,! 5 - ■ 1 ·, 25 0.2 - 0.15 - 1.5 0.25 - - 0.2 - 1.75 0.25 - ■ 0.2 - 1.8 0.3 - 0.2 - 2.0 0.3 - 0.2 - 2.1 0.4 - 0.3 - 2.25 0.4 - 0.5 - ^, j 0.4 - ^J , '·' - O 7 0.4 - ■ 0.3 - 2.75 0.5 - 0.4 - 3.0 0, - ' - 0.4 - 3.5 0.5 - 0.4 - 3.3 0.6 - 0.5 - 4.0 OjS - η ς
■ ~> , j - +, 3 0.3 - 0. £ T 4.8 0, ο - 0, ο - 5.0 . · \ ~~ - 0, β - 1.0 1.0 0.8 0.3 6.0 1.0 ■ 1, 2 0.8 1 0 ö, 5 • ι, ο 1.2 0.3 1.0, 7.0 1.2, 1, 5. 1.0 1.0 8.0 1.2. 1.5 1.0 1.0 10.0 ■ 1.5 2.0 1.0 1.5 1 * 2.0 1.5 2.0 1.0 Ί, 5 13.0 2.0 2.5 1.5 • 1.5 14.0 2.0 O R 1.5 1.5 16.0 • 2.5 3.0. U 5 2.0 2.5 1.5 3.0 2.0

50 9 824 701 9 9

BATH ORIGINAL

In investigations following the invention it tended that the radii of the inner diameter lower edges the disc springs should not be chosen too large if the narrowing is too large "should be avoided under stress.

This teaching of the inventor "is viewed on disc spring assemblies with Bolaenführung »She also says that a Rounding radius on "both inner edge diameters a tone s / 5 "for disc springs" up to an h / a ratio of tone 0.9 is appropriate.

For disc springs with a h / 3 ratio τοη 0.9 on the other hand, the dog radii should be slightly smaller be chosen to largely optimal conditions su reach (3 · here too the new proposal about Sunding radii on CB list disc springs) ·

The hysteresis τοη Tellerfedersätaen according to the invention can be further improved by the additional attachment τοη known support surfaces (annular surface planes perpendicular to the Belleville spring set axis).

509824/0199

COPY,
BATH ORIGINAL

Claims (1)

. 2385324 _ hl claim: - _:. Theorem of I.e 11.er springy type of Pertigun ^ s group 2 and according to DIH -2093 ', marked by, deviating from this standard Relative values to the ^ e ^ e: ■ - ■ «. i; n> the rounding radii b ^{: r} c - · "- oer iVllerfedern according to the following table! ^r a * ' ^r s h / s .o.y ^r b ^{= r} c ^r a r-. = rr
b ο a 1.0 0.2 mm 0.15 - _f 1.1 0.2 - 0.15 - 1.2 0.25 , 0 » ² - " 1.25 0.25 - 0.2 1.5 0.3 - 0.2 - 1.75 0.3 - 0.2 1.8 0.4 - 0.3 - 2.0 '. 0.4 - 0.3 2.1 0.4 - 0.3 - 2.25 0.4 0.3 2.5 0.5 -. 0.4 - 2.7 0.5 - 0.4 - 2.75 0.5 - 0.4 3.0 0.6 0.5 3.5 0.8 -. 0.5 - 3.8 0.8 - 0.6 4.0 0.8 - 0.6 - 4.3 0.8 0.6 -w 4.8 1.0 - 0.8 '■ - 5.0 ■ 1.0. - 0.8 - ■ 5.5 1.0 "1.0 0.8 0.8 6, Cf 1.2, 1.2 1.0 1.0- 6.5 1.2 1.2 1.0 1.0 7 * 0 1.5 1.5 1.0 1.0 8.0 1.5 1.5 1.0 1.0 10.0 .2.0 2.0 · '.1.5 1.5 12.0 x 2.0 2.0 1.5 1.5 13.0 ■ 2.5 2.5. 1.5 1.5 H »0. '■' 2.5 ³ 2.5 1.5 1.5 16.0 3.0 3.0 2.0 2.0 ... 5 0 98 24 / 0.1 9 9 BAD OP.SQINAL