CN1106513C - Asymmetrical tooth chain and its chain wheel - Google Patents
Asymmetrical tooth chain and its chain wheel Download PDFInfo
- Publication number
- CN1106513C CN1106513C CN00132060A CN00132060A CN1106513C CN 1106513 C CN1106513 C CN 1106513C CN 00132060 A CN00132060 A CN 00132060A CN 00132060 A CN00132060 A CN 00132060A CN 1106513 C CN1106513 C CN 1106513C
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- China
- Prior art keywords
- chain
- tooth
- mesh
- chainwheel
- carrier bar
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Abstract
The present invention relates to an asymmetrical tooth-shaped chain and chainwheels, which has the structural characteristics that the chain is composed of an external-layer chain plate 1, an internal-layer chain plate 2 and a hinged pair 3, wherein the external-layer chain plate 1 is assembled with the internal-layer chain plate 2 in a reverse mode through the hinged pair 3, and both of the external-layer chain plate 1 and the internal-layer chain plate 2 are composed of two rows or more than two rows of chain blocks which are hinged through the hinged pair 3 in a homodromous mode; each of the chain blocks is in an asymmetrical chain shape, one end of the chain block forms a circle, and the other end of the chain block forms an irregular figure; the external side of the irregular figure end is a plane which is in mesh with chainwheels 4, 5; the chainwheel 4 and the chainwheel 5 have asymmetrical tooth-shaped structure with unequal tooth-shaped angles of both sides of the chainwheel 4 and the chainwheel 5 (alpha is not equal to beta), and the tooth-shaped angles of the two chainwheels are correspondingly installed, wherein both sides of the chainwheel 4 are gettering, the middle part of the chainwheel 4 is in mesh with the chain, the middle of the other chainwheel 5 is gettering, both sides of the other chainwheel 5 are in mesh with the chain, and the mesh of the chain blocks and the chainwheels is the tooth external mesh of the single chain. The present invention can reduce mesh impact and improve mesh performance, and has the advantages of small abrasion, low noise and long service life; not only tooth jumping degree because of mechanics climbing when the chain transmits a load can be relieved, and the capacity that a chain transmission pair transmits a heavy load is enhanced, but also interchange can be carried out between each two of the chain blocks, and operation and maintenance are convenient.
Description
One, technical field:
The present invention relates to a kind of mechanical chain transmission device, especially asymmetric silent chain and sprocket wheel thereof.
Two, background technique:
The employed chain of chain-driven commonly used in the traditional mechanical transmission has roller chain and silent chain.This two classes chain transmission and sprocket wheel all are the symmetrical tooth-shape structure that equates of both sides tooth-shape angle (α=β), they exist in transmission process, and mesh impact is big, noise is bigger, it is bigger to wear and tear, the defective that life-span is short, and when transmitting heavy duty, climb because of the big mechanics easily of tooth-shape angle and to cause the jumping tooth.For overcoming the existing existing defective of chain, at present, there are a kind of envelope formula drive chain and sprocket wheel thereof to come out.This chain by the internal layer carrier bar through bearing pin and roller and outer carrier bar oppositely assembling constitute.Its chain and sprocket wheel all are the unequal asymmetric tooth-shape structure of both sides tooth-shape angle (α ≠ β).Its inside and outside layer carrier bar all has only one deck.The medial and lateral of every block of inside and outside layer carrier bar of this chain are the straight line Surface of action, and every chain piece all meshes with sprocket wheel two sprockets simultaneously.Though this chain and sprocket wheel meshing performance thereof are better than traditional roller chain and silent chain, it is guaranteeing that the chain piece does not have interchangeability under the constant prerequisite of meshing performance, and is prone to interference phenomenon.
Three, summary of the invention:
One of purpose of the present invention provides a kind of asymmetric profile of tooth chain, improve meshing performance by changing chain structure and carrier bar shape, solve the chain piece interchangeability problem of envelope formula drive chain, and the mesh impact problem of conventional chains, climb because of mechanics when alleviating chain and transmitting load and cause jumping the degree of tooth, thereby prolong the working life of chain, reduce noise, improve chain and transmit heavy duty ability.
Two of purpose of the present invention provides a kind of energy and the present invention---the matching used asymmetric silent chain sprocket wheel of asymmetric silent chain chain.
Concrete scheme of the present invention is: chain is made up of outer carrier bar, internal layer carrier bar and hinged pair, and the internal layer carrier bar is positioned at the centre of two outer carrier bars, and outer carrier bar oppositely assembles through hinged pair and internal layer carrier bar; Outer carrier bar and internal layer carrier bar by the chain piece of two or more rows through hinged pair in the same way the end-to-end assembling constitute; Each chain piece is asymmetric chain, and its one is rounded, and the other end is an irregular figure; The outside of irregular figure end is a plane, and this plane is a Surface of action; Sprocket wheel be the unequal asymmetric profile of tooth of both sides tooth-shape angle (α ≠ β), and the tooth-shape angle of two sprocket wheels oppositely installs relatively, wherein a sprocket wheel is that does not mesh on both sides, middle part and chain engages, another sprocket wheel is that does not mesh the centre, both sides and chain engages; The engagement of chain piece and sprocket wheel is the outer gearing of strand tooth.
The suffered mesh impact of the present invention's chain in transmission process is compared to roller chain, silent chain, envelope formula Transmitted chains all to be had significantly and reduces.As Fig. 7, shown in Figure 8:
In Fig. 7, Fig. 8, the chain type has been selected four kinds: the 1st, and roller chain, the 2nd, envelope formula Transmitted chains, the 3rd, silent chain, the 4th, the present invention's (asymmetric silent chain).
The present invention's's (asymmetric silent chain) monodentate tension force decay factor Δ Sy all is greatly improved than roller chain, silent chain, envelope formula Transmitted chains, and climbing because of mechanics when having alleviated chain and transmitting load causes jumping the degree of tooth.As shown in Figure 9:
The present invention's (asymmetric silent chain), silent chain, roller chain are in different drive ratios, and the big load-carrying ability of transmission of the present invention strengthens (the effective ratio F of transmission peripheral force and pilled-in selvedge tension force
Have/ F
1Increase), thus under the enough prerequisite of static strength, improved the transmitted load allowable of chain-driven pair.As shown in figure 10:
Therefore envelope formula Transmitted chains, is prone to interference owing to the medial and lateral engagement linear plane that is the chain piece meshes simultaneously with sprocket wheel two sprockets respectively, needs chain piece or sprocket wheel correction of the flank shape.In case but correction of the flank shape may be that the treating selvedge linear plane contacts engagement no longer just between chain piece and sprocket wheel, can reduce meshing performance.And because the inboard of chain piece participates in engagement, so if a certain chain piece is ground away, each chain interblock can not exchange.And the present invention is chain piece outside end face and the engagement of sprocket wheel monodentate, and Surface of action is linear plane, and it not only can not be interfered, and the chain interblock is convenient to exchange.
In sum, meshing performance of the present invention is good, and mesh impact is less in transmission process, and it is little to wear and tear, and noise is low, long service life; Climbing because of mechanics when not only having alleviated chain and transmitting load causes jumping the degree of tooth, and the secondary heavy duty ability of transmitting of chain-driven is strengthened; And the chain interblock is interchangeable, convenient maintenance.
Four, description of drawings:
Fig. 1 is the plan view of chain of the present invention;
Fig. 2 is the plan view of Fig. 1 ectomesoderm carrier bar;
Fig. 3 is the plan view of internal layer carrier bar among Fig. 1;
Fig. 4 is overall structure figure of the present invention, i.e. chain and sprocket engagement transmission schematic representation;
Fig. 5 is the plan view of Fig. 4;
Fig. 6 is the plan view of the single chain piece of chain of the present invention, and wherein the A end face is a Surface of action, and it is a plane in the chain piece irregular figure end outside;
Fig. 7 is illustrated under the identical transmission condition, and the number of teeth mesh impact that to be the mesh impact that produces of 14 minor sprocket engagement place produce with minor sprocket engagement place in roller chain, silent chain, the envelope formula drive chain contrasts situation;
Fig. 8 is illustrated under the identical transmission condition, and the number of teeth mesh impact that to be the mesh impact that produces of 41 hinge wheel engagement place produce with minor sprocket engagement place in roller chain, silent chain, the envelope formula drive chain contrasts situation;
Fig. 9 is the contrast situation of the monodentate tension force decay factor of the monodentate tension force decay factor of chain of the present invention and roller chain, silent chain, envelope formula Transmitted chains;
Figure 10 is meant that a teeth number of sprocket is 30, and another teeth number of sprocket is from 14-99 under totally 85 kinds of situations, the contrast situation of the transmission capacity of the transmission capacity of chain of the present invention and roller chain, silent chain.
Five, embodiment:
Shown in Fig. 1, Fig. 2, Fig. 3, Fig. 6: chain is made up of outer carrier bar 1, internal layer carrier bar 2 and hinged secondary 3, and wherein internal layer carrier bar 2 is positioned at the centre of two outer carrier bars 1, and outer carrier bar 1 oppositely assembles with internal layer carrier bar 2 through hinged secondary 3; Outer carrier bar 1 and internal layer carrier bar 2 by the chain piece of two or more rows through hinged secondary 3 hinged in the same way formations; Each chain piece is asymmetric chain, and its one is rounded, and the other end is an irregular figure; The outside of irregular figure end is a plane, and this plane is a Surface of action, this Surface of action and the engagement of sprocket wheel 4,5 strand teeth.
As Fig. 4, shown in Figure 5: sprocket wheel 4 and sprocket wheel 5 are the unequal asymmetric tooth-shape structure of both sides tooth-shape angle (α ≠ β), the tooth-shape angle of two sprocket wheels 4,5 is installed relatively, and wherein a sprocket wheel 4 does not mesh middle part and chain engages for both sides, another sprocket wheel 5 does not mesh both sides and chain engages for the centre; The engagement of chain piece and sprocket wheel is the outer gearing of strand tooth.
Also can see from above-mentioned accompanying drawing: the internal layer carrier bar 2 of chain is positioned at the centre of two outer carrier bars 1; Between internal layer carrier bar 2 and the outer carrier bar 1, hinged between chain piece and the chain piece by hinged secondary 3.
Claims (2)
1. asymmetric silent chain and sprocket wheel thereof, it is characterized in that: chain is made up of outer carrier bar (1), internal layer carrier bar (2) and hinged pair (3), its ectomesoderm carrier bar (1) is through the oppositely assembling of hinged pair (3) and internal layer carrier bar (2), and outer carrier bar (1) and internal layer carrier bar (2) are by the chain piece of two or more rows end-to-end assembling formation in the same way; Each chain piece is asymmetric chain, and its one is rounded, and the other end is an irregular figure; The outside of irregular figure end is a plane, and this plane is a Surface of action; The profile of tooth of sprocket wheel (4,5) is the unequal asymmetric profile of tooth of both sides tooth-shape angle (α ≠ β), the tooth-shape angle of two sprocket wheels (4,5) is oppositely installed relatively, and wherein a sprocket wheel (4) does not mesh for both sides, middle part and chain engages, another sprocket wheel (5) does not mesh for the centre, both sides and chain engages; The engagement of chain piece and sprocket wheel is the outer gearing of strand tooth.
2. asymmetric silent chain according to claim 1 and sprocket wheel thereof is characterized in that: the internal layer carrier bar (2) of chain is positioned at the centre of two outer carrier bars (1); Between internal layer carrier bar (2) and the outer carrier bar (1), hinged between chain piece and the chain piece by hinged pair (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00132060A CN1106513C (en) | 2000-12-08 | 2000-12-08 | Asymmetrical tooth chain and its chain wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00132060A CN1106513C (en) | 2000-12-08 | 2000-12-08 | Asymmetrical tooth chain and its chain wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1302963A CN1302963A (en) | 2001-07-11 |
| CN1106513C true CN1106513C (en) | 2003-04-23 |
Family
ID=4594931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00132060A Expired - Fee Related CN1106513C (en) | 2000-12-08 | 2000-12-08 | Asymmetrical tooth chain and its chain wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1106513C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458224C (en) * | 2005-12-31 | 2009-02-04 | 重庆大学 | Tooth-shaped belt chain and sprocket transmission device |
| CN101680522B (en) * | 2007-05-11 | 2012-12-05 | 克劳伊斯传动装置产品有限公司 | Inverted tooth chain sprocket with frequency modulated meshing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2258554Y (en) * | 1996-03-27 | 1997-07-30 | 韩永学 | Chain |
| US5800301A (en) * | 1997-05-09 | 1998-09-01 | Borg-Warner Automotive, Inc. | Chain assembly using formed bushings with inverted teeth |
| EP0909366A1 (en) * | 1996-07-03 | 1999-04-21 | CLOYES GEAR & PRODUCTS, INC. | Roller chain drive system having improved noise characteristics |
-
2000
- 2000-12-08 CN CN00132060A patent/CN1106513C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2258554Y (en) * | 1996-03-27 | 1997-07-30 | 韩永学 | Chain |
| EP0909366A1 (en) * | 1996-07-03 | 1999-04-21 | CLOYES GEAR & PRODUCTS, INC. | Roller chain drive system having improved noise characteristics |
| US5800301A (en) * | 1997-05-09 | 1998-09-01 | Borg-Warner Automotive, Inc. | Chain assembly using formed bushings with inverted teeth |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458224C (en) * | 2005-12-31 | 2009-02-04 | 重庆大学 | Tooth-shaped belt chain and sprocket transmission device |
| CN101680522B (en) * | 2007-05-11 | 2012-12-05 | 克劳伊斯传动装置产品有限公司 | Inverted tooth chain sprocket with frequency modulated meshing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1302963A (en) | 2001-07-11 |
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