DE48417C - Ring chain with links flattened in the middle of the ring - Google Patents
Ring chain with links flattened in the middle of the ringInfo
- Publication number
- DE48417C DE48417C DENDAT48417D DE48417DA DE48417C DE 48417 C DE48417 C DE 48417C DE NDAT48417 D DENDAT48417 D DE NDAT48417D DE 48417D A DE48417D A DE 48417DA DE 48417 C DE48417 C DE 48417C
- Authority
- DE
- Germany
- Prior art keywords
- chain
- links
- ring
- flattened
- link
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005452 bending Methods 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/12—Hauling- or hoisting-chains so called ornamental chains
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/02—Driving-chains
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/30—Chain-wheels
- F16H55/303—Chain-wheels for round linked chains, i.e. hoisting chains with identical links
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT. \*PATENT OFFICE. \ *
stellen die bisher gemit der zugehörigen 5 die patentirte Ketterepresent the previously according to the associated 5 the patented chain
Die Form der dargestellten Last- und Treibkette bezweckt, die so häufig vorkommenden Querverbiegungen und Brüche von Last- und Treibringketten zu vermeiden bezw. das Bruchmoment dieser Art von Ketten auf ein technisch erreichbares Kleinstes zu vermindern und gleichzeitig, ohne die Festigkeit der Kette zu beeinträchtigen, auch bedeutend kleinere Kettenrollen bezw. Trommeln verwenden zu können.The purpose of the shape of the load and driving chain shown is the one that occurs so frequently To avoid transverse bending and breakage of load and drive ring chains respectively. the breaking moment to reduce this type of chain to a technically achievable minimum and at the same time, significantly smaller chain rollers, without impairing the strength of the chain respectively To be able to use drums.
Fig. ι a, 2 a und 3 a
bräuchliche Ringkette
Kettenrolle, Fig. 1 bis
dar.Fig. Ι a, 2a and 3a
common ring chain
Chain roller, Fig. 1 to
represent.
Das auf der Kettenrolle liegende Kettenglied A, Fig. i, der bisher gebräuchlichen Ringketten, deren Glieder von kreisförmigem Quer-. schnitt sind, ruht in den Punkten χ χ auf dem Rollenrand B. Die in α α am Hebel χ α angreifende Kraft P hat das Bestreben, das Kettenglied A zu verbiegen, und da die Kraft P an einen Hebelarm von der halben Länge eines Kettengliedes angreift, so ist das Bruchmoment für den gefährlichen Querschnitt bei χ χ ein sehr grofses. The chain link A, Fig. I, lying on the chain roller, of the previously used ring chains, the links of which are of circular transverse. are cut, rests in points χ χ on the roller edge B. The force P acting in α α on the lever χ α tends to bend the chain link A , and since the force P acts on a lever arm half the length of a chain link , the breaking moment for the dangerous cross-section at χ χ is a very large one.
Zur Vermeidung der seitlichen Querverbiegungen und zwecks besserer Führung der Kettenglieder
hat man bisher den Kettenrollenrand R mit einer Erhöhung rr, Fig. 3a, versehen.
Doch diese Erhöhung wird, wie die Erfahrung ergab, sehr schnell abgenutzt und verringert
alsdann das Bruchmöment der Glieder durchaus nicht, weil das rollende Glied A trotzdem
in den zwei Punkten χ χ aufliegt.To avoid the lateral transverse bending and for the purpose of better guidance of the chain links, the chain roller edge R has been provided with an elevation rr, FIG. 3a. But, as experience has shown, this increase is worn out very quickly and then does not at all reduce the breaking strength of the links, because the rolling link A is nonetheless
rests in the two points χ χ.
Zur Vermeidung dieser Uebelstände werden die Kettenglieder von kreisförmigem Querschnitt ' derart abgeflacht, d. h. hohl geformt, dafs das rollende Kettenglied nunmehr anstatt auf zwei Punkten χ χ auf vier Flächen X1X2X3X4, Fig. 2, des Kettenrollenrandes R liegt. Diese Auflageflächen x1 x2 und x3 x4 liegen mehr nach den Enden der Glieder, wodurch erreicht wird, dafs die Auflageflächen x1 x2 und x3 x4 mit den Angriffspunkten α α der Kraft P P fast zusammenfallen, also der Hebelarm χ1 α (χ** α) bezw. χ3 a fx4 a) fast Null und somit das Bruchmoment auf den kleinsten Werth herabgemindert wird, Fig. 1 und 2.The chain links are flattened from a circular cross section 'in such a way to avoid these inconveniences, that is, hollow-shaped, rolling chain link DAF now instead of two points χ χ on four faces X 1 X 2 X 3 X 4, Fig. 2, the chain roller rim R is. These bearing surfaces x 1 x 2 and x 3 x 4 lie more towards the ends of the links, which means that the bearing surfaces x 1 x 2 and x 3 x 4 almost coincide with the points of application α α of the force PP , i.e. the lever arm χ 1 α (χ ** α) resp. χ 3 a fx 4 a) almost zero and thus the breaking torque is reduced to the smallest value, Fig. 1 and 2.
Um die Zugfestigkeit der Kettenglieder durch diese Abflachungen x1 x° x3 und x2 x° x4 nicht zu verringern, wird das Glied verbreitert, so dafs der mittlere Querschnitt eines solchen Gliedes z. B. ein rechteckiger bezw. ellipsenförmiger ist, Fig. 3 und 4.In order not to reduce the tensile strength of the chain links by these flattenings x 1 x ° x 3 and x 2 x ° x 4 , the link is widened so that the mean cross-section of such a link z. B. a rectangular or. is more elliptical, Figs. 3 and 4.
Das nicht in die Rollenfläche, sondern rechtwinklig dazu kommende Kettenglied A kann entweder von gleicher Form wie A1, Fig. 4 und ι, oder ein gewöhnliches Ringkettenglied A0, Fig. 5 und 1, sein. Ferner kann die innere Verbreiterung des Kettengliedes so grofs gemacht werden, dafs die einzelnen Kettenglieder sich nicht verwickeln können, oder es kann auch diese Verbreiterung zu einem Stege zusammengeschweifst werden. The chain link A , which does not come into the roller surface, but at right angles to it, can either be of the same shape as A 1 , FIGS. 4 and 1, or an ordinary ring chain link A 0 , FIGS. 5 and 1. Furthermore, the inner widening of the chain link can be made so large that the individual chain links cannot become tangled, or this widening can also be twisted together to form a web.
Die Kette bietet aufser ihrer grofsen Bruch- und Zugfestigkeit noch den Vortheil, dafs RollenIn addition to its great breaking strength and tensile strength, the chain also offers the advantage that rollers
oder Trommeln von sehr geringem Durchmesser ohne schädliche Beeinflussung der Kette verwendet werden können.or drums of very small diameter without damaging the chain can be used.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE48417C true DE48417C (en) |
Family
ID=323396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT48417D Expired - Lifetime DE48417C (en) | Ring chain with links flattened in the middle of the ring |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE48417C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1984004370A1 (en) * | 1983-05-05 | 1984-11-08 | Brupat Ltd | Improved link chain |
-
0
- DE DENDAT48417D patent/DE48417C/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1984004370A1 (en) * | 1983-05-05 | 1984-11-08 | Brupat Ltd | Improved link chain |
US4627232A (en) * | 1983-05-05 | 1986-12-09 | Brupat Limited | Link chain |
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