CN1755162A - Roller chain with greater link joint height - Google Patents
Roller chain with greater link joint height Download PDFInfo
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- CN1755162A CN1755162A CN 200510098622 CN200510098622A CN1755162A CN 1755162 A CN1755162 A CN 1755162A CN 200510098622 CN200510098622 CN 200510098622 CN 200510098622 A CN200510098622 A CN 200510098622A CN 1755162 A CN1755162 A CN 1755162A
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- roller chain
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Abstract
A roller chain of a metallic material, with alternating inner and outer chain links which are respectively joined together via a chain joint, whereby the outer chain links comprise two parallel outer plates, joined together by means of two parallel joint pins, and the inner chain links comprise two parallel inner plates, joined together by means of two parallel joint sleeves, a joint pin of an outer chain link extends in each case through a joint sleeve of an inner chain link to form a chain joint and a rotatable roller is arranged on the outer surface of the joint sleeve, whereby a size ratio of the height of the outer and inner plates to the external diameter of the roller is greater than 1.4, and a size ratio of the mean thickness of the inner plate to the mean thickness of the outer plate is greater than 1.1.
Description
Technical field
The present invention relates to a kind of roller chain of metallic material, it has the inner link that replaces mutually and outer link and is connected with each other by link in all cases, wherein outer link comprises two parallel outer plates, link together by two parallel connecting pins, and inner link comprises two parallel inner plates, link together by two parallel coupling sleeves, the coupling sleeve that the connecting pin of outer link passes inner link in all cases links to form, and disposes rotating roller on the outer surface of coupling sleeve.
The example of roller chain can be found in US 5382199A, GB 2398852A, EP 0257661A and US 5799479A.
Background technique
The roller chain of this type obtains very frequent use, is particularly requiring chain to have in the application of good acoustic characteristic.Be configured in the roller in order to rotate on the coupling sleeve,, guaranteed when meeting, compare, correspondingly produce the noise of reduced levels with comparable telescopic chain with sprocket wheel owing to its rotational support.Yet the telescopic chain suitable with size compared, and the inferior position of roller chain is that it has the fatigue strength lower than telescopic chain.Must consider that in various application giving acoustic problems with preference still is that the fatigue strength problem is worked as.In some applications, for example significant space problem during as the timing chain on the internal-combustion engine, can be taken place in roller chain, to such an extent as to use the gap of chain of standard very limited.
Therefore, target of the present invention provides the roller chain of mentioning in a kind of foreword, and it has higher fatigue strength and also has good acoustic characteristic.
Summary of the invention
According to the present invention, the solution of this target is, the height of outer plate and inner plate and the size of roller outer diameter than greater than 1.4 and the size of the average thickness of inner plate and the average thickness of outer plate than greater than 1.1.The standard roller chain is relatively demonstrated with the chain that provides according to the present invention (wherein the external diameter of roller equates), and the roller chain that provides according to the present invention has significantly higher outer plate or inner plate.And because this dissimilar configuration makes the increase of inner plate thickness help to significantly improve potential fatigue strength.Because particularly higher outer plate and inner plate and can be used for most chain-driven with the inner plate (particularly otherwise size is basic identical) of to a certain degree thickening, the raising that additional advantage is fatigue strength is only because higher outer plate and inner plate reach thicker inner plate produces.Therefore, telescopic chain and standard roller chain can be substituted by this roller chain that the present invention provides, and need not by any way chain-driven to be made any change.Outer plate that this is higher and inner plate height can be accepted by the common pulling force displacement that is provided by pull bar (tensioning bar) and chain adjuster unquestionablely.When the pitch of roller keeps identical with external diameter, need not to change, particularly sprocket wheel is changed.We can say in a word, compare with the standard roller chain, extended and do not weaken its function to the relevant cross section of important inner plate of fatigue strength and outer plate.Opposite with the solution that provides according to the invention in the design of US2004/0192482A1, connect area and enlarged, therefore obtained better wear resistance.On the contrary, the present invention is intended to improve fatigue strength, particularly has under the situation of medium mean tension.The average thickness of inner plate and outer plate has the thickness of link plates of identical weight (for identical external frame, size and interior profile (opening) and same material) and plane-parallel side surface in order to expression.According to this definition, for example the shaping inner plate that provides according to US 5799479 demonstrates and the essentially identical average thickness of relevant outer plate.And the plotting error of Fig. 6 can't be passed on so a kind of technology in this open text.
Most of existing chain-driven help to improve in addition the fatigue strength of roller chain, and need not sprocket wheel is changed.In this respect, the size of the chain that provides according to the variation scheme average thickness that demonstrates inner plate and the average thickness of outer plate is than greater than 1.2.Under the situation that most of chain-driven be need not to change, its upper limit maximum should be 1.5 or be preferably 1.4.
Especially, for roller chain,, will be favourable if outer plate and inner plate present equal height according to a variation scheme as the timing chain on the internal-combustion engine.For this reason, to present consistent height also can be favourable if outer plate and inner plate are symmetrical in vertical center line between nose circle separately.This definition is meant that the last lower limb of carrier bar is parallel to each other and equates with respect to longitudinal center's linear distance of chain.
Known a particularly advantageous variation scheme of the combined effect about acoustic characteristic and fatigue strength, wherein the height of outer plate and inner plate compares greater than 1.45 and less than 1.55 with the size of roller outer diameter.
To this preferably, the height of inner plate and outer plate is chosen as greater than 1.48 and less than 1.52 with the size ratio of roller outer diameter.Adopt this scope, also can imagine this roller chain and can be used as the alternative that has now in the chain-driven.
According to a variation scheme,, can obtain the alternative roller chain of standard roller chain easily when the size of roller outer diameter and chain pitch during than maximum value with 0.71.Although the wear resistance of link can not obtain raising by such measures, compare with the standard roller chain, for medium average load, this roller chain provides higher serviceability.
In addition, the height of inner plate and outer plate can be 0.97 to 1.1 with the size ratio of the pitch of roller chain.
In addition, the connecting pin external diameter can reach 0.39 with the size of pitch than maximum.And, can guarantee like this to compare with conventional chain, need not to enlarge the connection area basically.
According to a variation scheme, when the size of the height of outer plate and connecting pin external diameter than greater than 2.7, be preferably 2.85 and less than 3.1, be preferably at 3.0 o'clock, can obtain further influence to fatigue strength.
In a variation scheme, another size of additional geometry optimization that is used for roller chain is than being the height of inner plate and the size ratio of the external diameter of coupling sleeve.This size is preferably 2.05, and less than 2.3, is preferably 2.15 than greater than 1.9.
Because the roller chain that provides according to the present invention is mainly as the timing chain in the internal-combustion engine, in one embodiment, using a kind of steel, is a kind of Tempered Steel specifically, as the metallic material of outer plate and inner plate, coupling sleeve, connecting pin and roller.
Compare with the minimum sandards ultimate strength by the single roller chain that has same pitch, identical roller outer diameter and be manufactured from the same material of DIN 8187, the minimum ultimate strength of this single roller chain rises at least 1.4 times.
In addition, when as the timing chain in the internal-combustion engine, compare with the single roller chain that has same pitch, identical roller outer diameter, is manufactured from the same material and has identical test condition in by 2000 to 5000rpm scope by DIN 8187, this single roller chain can show average reduction noise of air and the structure-borne noise of 2dB at least of 1dB at least.
Description of drawings
Below describe the present invention with reference to the accompanying drawings.Below illustrate:
Fig. 1 has shown the whole-cutaway view of the roller chain that provides according to the present invention; And
Fig. 2 has shown the side view of the roller chain among Fig. 1.
Embodiment
The roller chain that shows among Fig. 1 comprises inner link 2 and the outer link 3 that replaces mutually.
Each inner link 2 comprises: two parallel inner plates 4 that the space is arranged, two space layouts and the parallel coupling sleeve 5 that inner plate 4 is interconnected, and two rollers 6, one of them is supported on the outer surface 7 of coupling sleeve 5 to rotate in all cases.Coupling sleeve 5 is pressed in the perforate 8 of inner plate 4, and wherein the end of coupling sleeve 5 (face sides) 9 stretches out inner plate 4 a little.The length of roller 6 is shorter than the inside spacing of 4 of two inner plates a little.
Each outer link 3 comprises two outer plate 10 and two connecting pins of arranging by a parallel distance each other 11 of arranging by a parallel distance each other.Each connecting pin 11 passes a coupling sleeve 5 of inner link 2 in all cases to form a link 12.Connecting pin 11 is pressed in the perforate 13 of outer plate 10, and its end is stretched out outer plate 10 a little at two ends.The length that the inside spacing that two outer plates of outer link 3 are 10 is longer than coupling sleeve 5 a little.
As seen from Figure 2, inner plate 4 and outer plate 10 present height h
LConnecting pin 11 has outside diameter d
B, coupling sleeve 5 has outside diameter d
HAnd roller 6 has outside diameter d
RThe last lower limb of inner plate 4 and outer plate 10 is parallel to each other, and equates with respect to vertical center line M (symmetrically) distance of chain.Therefore all inner plate 4 and outer plates 10 have equal height.
According to the present invention, the height h of outer plate 10 and inner plate 4
LOutside diameter d with roller 6
RThe size ratio should be greater than 1.4.By this mode of execution, height h
LEqual 9.5mm, and the outside diameter d of roller 6
RBe 6.35mm.This is equivalent to 1.496 size than (according to the present invention greater than 1.4, preferably between 1.45 and 1.55 or between 1.48 and 1.52).
In this mode of execution, the outside diameter d of connecting pin 11
BBe 3.35mm.This is equivalent to h
LWith d
BBetween the size ratio be 2.923 (greater than 2.7, are preferably 2.85 according to the present invention, and, are preferably 3.0) less than 3.1.
The outside diameter d of coupling sleeve 5
HBe 4.55mm in the case.This is equivalent to h
LWith d
HBetween the size ratio be 2.088 (greater than 1.9, are preferably 2.05 according to the present invention, and, are preferably 2.15) less than 2.3.
The thickness d of inner plate 4
LIBe 1.5mm in the case, and thickness d
LABe 1.2mm in the case.This is equivalent to 1.25 size than (this size be preferably greater than 1.2, but maximum value is 1.5 than greater than 1.1 according to the present invention).
The pitch T of roller chain 1 is 9.525mm (also can use other pitches certainly under the situation that suitably keeps the size ratio).
The outside diameter d of this expression roller 6
RWith the size of the pitch T of roller chain 1 be 0.67 (this size ratio can reach 0.71 according to the present invention) than in the case.
The height h of inner plate 4 and outer plate 10
LWith the size of the pitch T of roller chain 1 be 0.997 (this size ratio can be 0.97 to 1.1 according to the present invention) than in the case.
The outside diameter d of connecting pin 11
BWith the size of pitch T be 0.35 (this size ratio can reach 0.39 according to the present invention) than in the case.
The correct size ratio of selecting makes minimum ultimate strength and the outside diameter d with same pitch T, identical roller 6 according to DIN 8187
RAnd the minimum sandards ultimate strength of the single roller chain that is manufactured from the same material is compared, and is increased at least 1.4 times.By current this multiple of mode of execution even obviously higher.This relatively is according to by identical steel, and the roller chain DIN 8187-06B-1 that makes as 42CrMo4 or C45E carries out.
In addition, when as the timing chain in the internal-combustion engine, and have same pitch T, an identical roller outer diameter d according to DIN 8187
R, be manufactured from the same material and the single roller chain that has identical test condition in 2000 to 5000rpm scope is compared, the single roller chain that provides according to the present invention demonstrates average reduction noise of air and the structure-borne noise of 2dB at least of 1dB at least.This relatively carries out in V6 traction simulation (towing simulation).The roller chain DIN 8187-06B-1 that is made by steel (specifically being 42CrMo4 or C45E) is used as the contrast chain.In the whole velocity range of the chain that provides according to the present invention, noise of air remains the noise level that is lower than standard chain.Basic identical to the condition that structure-borne noise is measured.Adjustment occurs over just in some resonance speed scope, but does not have excessive value in described speed range.Therefore new chain is quieter significantly and more durable.
Owing to compare with the roller chain of standard, with the outside diameter d of roller 6
RSize than intermediate plate height h
LHigher, therefore, except that the good acoustic characteristic that has kept roller chain 1, also significantly improved fatigue strength.Therefore such chain especially can be used as the timing chain in the internal-combustion engine.In addition, can be simply with this roller chain 1 as the previous chaindriven alternative chain that uses telescopic chain, wherein this telescopic chain has the outside diameter d with roller 6
RThe sleeve outer diameter that equates.Fatigue strength thereby can reach similar value.Yet, by using roller chain 1, to compare with telescopic chain, acoustic characteristic can obtain significant raising.
Claims (15)
1. the roller chain of a metallic material (1), it has inner link and the outer link (2 that replaces and link together by link (12) respectively mutually, 3), wherein outer link (3) comprises two parallel outer plates (10), link together by two parallel connecting pins (11), and inner link (2) comprises two parallel inner plates (4), link together by two parallel coupling sleeves (5), the connecting pin (11) of outer link (3) passes the coupling sleeve (5) of inner link (2) in all cases to form link (12), and on the outer surface of coupling sleeve (5), dispose rotating roller (6), it is characterized in that outer plate and inner plate (4,10) height (h
L) with the external diameter (d of roller (6)
R) size than greater than 1.4, and the size of the average thickness of inner plate and the average thickness of outer plate is than greater than 1.1.
2. roller chain according to claim 1 (1) is characterized in that the average thickness (d of inner plate (4)
LI) with the average thickness (d of outer plate (10)
LA) size than greater than 1.2.
3. roller chain according to claim 1 and 2 (1) is characterized in that the average thickness (d of inner plate (4)
LI) with the average thickness (d of outer plate (10)
LA) the size ratio be 1.5 to the maximum, be preferably 1.4.
4. according to described roller chain (1) one of in the claim 1 to 3, it is characterized in that outer plate presents identical height (h with inner plate (4,10)
L).
5. according to described roller chain (1) one of in the claim 1 to 4, center line presents consistent height (h to it is characterized in that being symmetrical in outer plate and inner plate (4,10) longitudinally between nose circle separately
L).
6. according to described roller chain (1) one of in the claim 1 to 5, it is characterized in that the height (h of outer plate and inner plate (4,10)
L) with the external diameter (d of roller (6)
R) size than greater than 1.45 and less than 1.55.
7. according to described roller chain (1) one of in the claim 1 to 6, it is characterized in that the height (h of inner plate and outer plate (4,10)
L) with the external diameter (d of roller (6)
R) size than greater than 1.48 and less than 1.52.
8. according to described roller chain (1) one of in the claim 1 to 7, it is characterized in that the external diameter (d of roller (6)
R) with the size of the pitch (T) of roller chain (1) than maximum value with 0.71.
9. according to described roller chain (1) one of in the claim 1 to 8, it is characterized in that the height (h of inner plate and outer plate (4,10)
L) with the size ratio of the pitch (T) of roller chain (1) be 0.97 to 1.1.
10. according to described roller chain (1) one of in the claim 1 to 9, it is characterized in that the external diameter (d of connecting pin (11)
B) with the size of pitch (T) than maximum value with 0.39.
11., it is characterized in that the height (h of outer plate (10) according to described roller chain (1) one of in the claim 1 to 10
L) with the external diameter (d of connecting pin (11)
B) size than greater than 2.7, be preferably 2.85, and, be preferably 3.0 less than 3.1.
12., it is characterized in that the height (h of inner plate (4) according to described roller chain (1) one of in the claim 1 to 11
L) with the external diameter (d of coupling sleeve (5)
H) size than greater than 1.9, be preferably 2.05, and, be preferably 2.15 less than 2.3.
13., it is characterized in that outer plate and inner plate (4,10), coupling sleeve (5), connecting pin (11) and roller (6) by a kind of steel, particularly made by a kind of Tempered Steel according to described roller chain (1) one of in the claim 1 to 12.
14. according to described single roller chain (1) one of in the claim 1 to 13, it is characterized in that the selection of size ratio makes, minimum ultimate strength and external diameter (d with same pitch (T), identical roller (6) according to DIN 8187
R) and the minimum sandards ultimate strength of the single roller chain that is manufactured from the same material compare, be increased at least 1.4 times.
15. according to described single roller chain (1) one of in the claim 1 to 14, it is characterized in that the selection of size ratio makes, when as the timing chain in the internal-combustion engine, and have same pitch (T), an identical roller outer diameter (d according to DIN 8187
R), be manufactured from the same material and the single roller chain that has identical test condition in 2000 to 5000rpm scope is compared, single roller chain (1) demonstrates average reduction noise of air and the structure-borne noise of 2dB at least of 1dB at least.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202004014091 | 2004-09-10 | ||
| DE202004014091.8 | 2004-09-10 | ||
| DE202005011198.8 | 2005-07-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1755162A true CN1755162A (en) | 2006-04-05 |
| CN100547261C CN100547261C (en) | 2009-10-07 |
Family
ID=36688627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100986223A Active CN100547261C (en) | 2004-09-10 | 2005-09-05 | Roller chain with big chain plate height |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100547261C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016615A (en) * | 2012-12-16 | 2013-04-03 | 常州赛奇链传动有限公司 | Roller chain |
| CN105526319A (en) * | 2014-10-16 | 2016-04-27 | 株式会社椿本链条 | Chain |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB947669A (en) * | 1961-11-08 | 1964-01-29 | Thew Shovel Co | Sprocket chain |
| DE3629410A1 (en) * | 1986-08-29 | 1988-03-10 | Winkelhofer & Soehne Joh | ROLLER CHAIN |
| US5382199A (en) * | 1992-02-03 | 1995-01-17 | U.S. Tsubaki, Inc. | Large bearing area roller chain |
| JP2002013596A (en) * | 2000-06-30 | 2002-01-18 | Daido Kogyo Co Ltd | Low noise roller chain |
| JP3656848B2 (en) * | 2003-02-27 | 2005-06-08 | 株式会社椿本チエイン | Automotive engine timing chain |
-
2005
- 2005-09-05 CN CNB2005100986223A patent/CN100547261C/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016615A (en) * | 2012-12-16 | 2013-04-03 | 常州赛奇链传动有限公司 | Roller chain |
| CN105526319A (en) * | 2014-10-16 | 2016-04-27 | 株式会社椿本链条 | Chain |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100547261C (en) | 2009-10-07 |
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