CN201705871U - Low-noise tooth-shaped chain transmission system - Google Patents
Low-noise tooth-shaped chain transmission system Download PDFInfo
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- CN201705871U CN201705871U CN2010201633598U CN201020163359U CN201705871U CN 201705871 U CN201705871 U CN 201705871U CN 2010201633598 U CN2010201633598 U CN 2010201633598U CN 201020163359 U CN201020163359 U CN 201020163359U CN 201705871 U CN201705871 U CN 201705871U
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- chain
- carrier bar
- tooth
- elastic material
- metallic elastic
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Abstract
The utility model relates to a low-noise tooth-shaped chain transmission system, belonging to the field of chain transmission. The low-noise tooth-shaped chain transmission system comprises a tooth-shaped chain, a curved tooth shape chain wheel 1, a curved tooth shape chain wheel 2 and a tensioner, wherein the tooth-shaped chain is formed by tooth-shaped chain plates which are hinged in parallel, with the type of n*(n+1), wherein n is equal to 2 to 40; on the chain link with the chain plates quantity n, the steel tooth-shaped chain plates are adopted; on the chain link with the chain plates quantity n+1, nonmetal elastic material chain plates are used as any tooth chain plates from the second one to the n-th one; and the apothem f1 of the nonmetal elastic material chain plate and the curvature radius r1 of the tooth shape at the internal side are respectively larger than the f and r in the steel tooth-shaped chain plates by 0.1mm to 0.2mm. The low-noise tooth-shaped chain transmission system has the advantages that the structure is novel and a transmission mechanism for the tooth-shaped chain and the chain wheel which has low noise and is suitable for high speed, heavy load, variable speed and variable load is provided. In the power transmission process, the tooth-shaped chain transmission system is stable in engage-in and engage-out process and small in shock vibration and low in noise, and is particularly suitable for high-speed power transmission of vehicles.
Description
Technical field
The utility model belongs to Machine Design manufacturing and field of chain transmission, is applicable to the power transmission of automobile and motorcycle.
Background technique
Silent chain is a kind of widely used important mechanical basic part, and particularly under the operating mode of high speed, heavy duty, speed change, variable load, low noise, big centre distance, its type of belt drive is better than toothed belt transmission, gear transmission and roller chain drives.Traditional silent chain is that all carrier bar physical dimension and materials are identical, and carrier bar is outside straight flange flank profil and the engagement of sprocket wheel straight-side profile, and the engagement of each chain link and sprocket wheel was finished in moment, and engagement process belongs to non-conjugated engagement.Because chaindriven polygon effect, the pitch lines of traditional silent chain and the pitch circle of sprocket wheel replace cuts or tangent mutually, and its chain position of center line periodically changes, and under the situation of high-speed overload, chain and sprocket engagement produce big shock and vibration.Can produce big noise like this, befouling environment also can give the precision of chain and bring working life to seriously influence simultaneously.The power transmission that is unfavorable for automobile and motorcycle.
Summary of the invention
The utility model provides a kind of silent chain transmission system with low noise, to solve the big problem of noise that traditional silent chain and straight-side profile sprocket engagement are deposited.The technological scheme that the utility model is taked is: comprise the silent chain chain, curvilinear tooth profile sprocket wheel one, curvilinear tooth profile sprocket wheel two and stretcher, this silent chain chain is by silent chain carrier bar hinged forming arranged side by side, be the type of n * (n+1), n=2～40 wherein, at the carrier bar number is on the chain link of n, adopt steel silent chain carrier bar, at the carrier bar number is on the chain link of n+1, the 2nd any a slice in the n sheet adopts the non-metallic elastic material carrier bar, and the apothem f1 of this non-metallic elastic material carrier bar and inboard Profile radius of curvature r1 are than the f in the silent chain carrier bar of steel, r is big 0.1～0.2mm respectively.
A kind of mode of execution of the present utility model: when 2≤n≤10, be on the chain link of n at the carrier bar number, the 2nd any a slice in the n-1 sheet adopts the non-metallic elastic material carrier bar; At the carrier bar number is on the chain link of n+1, and the 2nd any a slice in the n sheet adopts the non-metallic elastic material carrier bar.
A kind of mode of execution of the present utility model is: when 10＜n≤40, be on the chain link of n at the carrier bar number, the 2nd any a slice in the n-1 sheet made the carrier bar of non-metallic elastic material; At the carrier bar number is on the chain link of n+1, and two carrier bars of the 2nd any symmetrical position in the n sheet are made the non-metallic elastic material carrier bar.
A kind of mode of execution of the present utility model is: the non-metallic elastic material that the non-metallic elastic material carrier bar adopts comprises: fluosilicic rubber, polyurethane, nitrile butadiene rubber, polycaprolactam.
A kind of mode of execution of the present utility model is: the stretcher structure be two Idle wheels respectively with the silent chain chain engages, wind spring is connected with two Idle wheels, wherein the Idle wheel material is a non-metallic elastic material, profile of tooth is a curvilinear tooth profile.
A kind of mode of execution of the present utility model is: the nonmetallic material of Idle wheel are: fluosilicic rubber, polyurethane, nitrile butadiene rubber, polycaprolactam.
During with the chain of nonmetal elasticity carrier bar and sprocket engagement, at first be that non-metallic elastic material carrier bar contacts with sprocket teeth earlier, contact with all carrier bars more afterwards.The non-metallic elastic material carrier bar can play buffer function like this, reduces the mesh impact of chain and sprocket wheel, thereby reduces noise.The chain of band non-metallic elastic material carrier bar wants light with traditional profile of tooth chain phase specific mass of identical joint number, thereby can alleviate mesh impact, reduces noise.Stretcher of the present utility model is the Idle wheel that utilizes the involute profile that non-metallic elastic material makes, the arrangement of Idle wheel as shown in Figure 5, the inner edge slack auto-tensioning of chain, can be fit to like this traveling vehicle advance or reverse travel in tensioning.
Advantage of the present utility model is novel structure, a kind of driving mechanism that has low noise, is fit to the profile of tooth chain and sprocket of high speed, heavy duty, speed change, variable load is provided, the non-metallic elastic material such as the fluosilicic rubber material that adopt have resistance to heat, cold tolerance: range of temperature is from-50 ℃ to 200 ℃, have good stable simultaneously concurrently, ageing-resistant, water resistence, resistance to soiling, anti-solvent and wet goods performance.In known material, has the strongest wear resistance, suitable drawing more than the intensity 20KN.This material is adapted at working in the bigger environment in field, summer in winter difference variation.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the chain figure of band non-metallic elastic material carrier bar, is example with n=7, is 7 * 8 type chains, and non-metallic elastic material chain plate arrangement can be any a slice wherein;
Fig. 3 is the structural representation of stretcher.
Embodiment
Comprise silent chain chain 2, curvilinear tooth profile sprocket wheel 1, curvilinear tooth profile sprocket wheel 24 and stretcher 3, this silent chain chain is by silent chain carrier bar hinged forming arranged side by side, be the type of n * (n+1), n=2～40 wherein, at the carrier bar number is on the chain link of n, adopt steel silent chain carrier bar, at the carrier bar number is on the chain link of n+1, the 2nd any a slice in the n sheet adopts the non-metallic elastic material carrier bar, and the apothem f1 of this non-metallic elastic material carrier bar and inboard Profile radius of curvature r1 are than f, r in the silent chain carrier bar of steel big 0.1～0.2mm respectively.
A kind of mode of execution of the present utility model: when 2≤n≤10, be on the chain link of n at the carrier bar number, the 2nd any a slice in the n-1 sheet adopts the non-metallic elastic material carrier bar; At the carrier bar number is on the chain link of n+1, and the 2nd any a slice in the n sheet adopts the non-metallic elastic material carrier bar.
A kind of mode of execution of the present utility model is: when 10＜n≤40, be on the chain link of n at the carrier bar number, the 2nd any a slice in the n-1 sheet made the carrier bar of non-metallic elastic material; At the carrier bar number is on the chain link of n+1, and two carrier bars of the 2nd any symmetrical position in the n sheet are made the non-metallic elastic material carrier bar.
A kind of mode of execution of the present utility model is: the non-metallic elastic material that the non-metallic elastic material carrier bar adopts comprises: fluosilicic rubber, polyurethane, nitrile butadiene rubber, polycaprolactam.
A kind of mode of execution of the present utility model is: the stretcher structure is that two Idle wheels 301 mesh with silent chain chain 2 respectively, and wind spring 302 is connected with two Idle wheels, and wherein the Idle wheel material is a non-metallic elastic material, and profile of tooth is a curvilinear tooth profile.
A kind of mode of execution of the present utility model is: the nonmetallic material of Idle wheel are: fluosilicic rubber, polyurethane, nitrile butadiene rubber, polycaprolactam.
As Fig. 1, Fig. 2 and shown in Figure 3, be example with n=7, be 7 * 8 type chains, be on 7 the chain link at the carrier bar number, adopt steel silent chain carrier bar, be that any a slice wherein adopts non-metallic elastic material carrier bar 201 on 8 the chain link at the carrier bar number; The apothem f1 of this non-metallic elastic material carrier bar and inboard Profile radius of curvature r1 are than the big 0.15mm of f, r in the silent chain carrier bar of steel difference, and the non-metallic elastic material carrier bar adopts fluosilicic rubber; The stretcher structure is that two Idle wheels 301 mesh with silent chain chain 2 respectively, and wind spring 302 is connected with two Idle wheels, and wherein the Idle wheel material is a fluosilicic rubber, and profile of tooth is a curvilinear tooth profile.
Claims (6)
1. silent chain transmission system with low noise, it is characterized in that: comprise the silent chain chain, curvilinear tooth profile sprocket wheel one, curvilinear tooth profile sprocket wheel two and stretcher, this silent chain chain is by silent chain carrier bar hinged forming arranged side by side, be the type of n * (n+1), n=2～40 wherein, at the carrier bar number is on the chain link of n, adopt steel silent chain carrier bar, at the carrier bar number is on the chain link of n+1, the 2nd any a slice in the n sheet adopts the non-metallic elastic material carrier bar, and the apothem f1 of this non-metallic elastic material carrier bar and inboard Profile radius of curvature r1 are than the f in the silent chain carrier bar of steel, r is big 0.1～0.2mm respectively.
2. silent chain transmission system with low noise according to claim 1 is characterized in that: when 2≤n≤10, be on the chain link of n at the carrier bar number, the 2nd any a slice in the n-1 sheet adopts the non-metallic elastic material carrier bar; At the carrier bar number is on the chain link of n+1, and the 2nd any a slice in the n sheet adopts the non-metallic elastic material carrier bar.
3. silent chain transmission system with low noise according to claim 1 is characterized in that: when 10＜n≤40, be on the chain link of n at the carrier bar number, the 2nd any a slice in the n-1 sheet made the carrier bar of non-metallic elastic material; At the carrier bar number is on the chain link of n+1, and two carrier bars of the 2nd any symmetrical position in the n sheet are made the non-metallic elastic material carrier bar.
4. according to claim 1 or 2 or 3 described silent chain transmission system with low noise, it is characterized in that: the non-metallic elastic material that the non-metallic elastic material carrier bar adopts comprises: fluosilicic rubber, polyurethane, nitrile butadiene rubber or polycaprolactam.
5. according to claim 1 or 2 or 3 described silent chain transmission system with low noise, it is characterized in that: the stretcher structure be two Idle wheels respectively with the silent chain chain engages, wind spring is connected with two Idle wheels, and wherein the Idle wheel material is a non-metallic elastic material, and profile of tooth is a curvilinear tooth profile.
6. silent chain transmission system with low noise according to claim 5 is characterized in that: the nonmetallic material of Idle wheel are: fluosilicic rubber, polyurethane, nitrile butadiene rubber or polycaprolactam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201633598U CN201705871U (en) | 2010-04-14 | 2010-04-14 | Low-noise tooth-shaped chain transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201633598U CN201705871U (en) | 2010-04-14 | 2010-04-14 | Low-noise tooth-shaped chain transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201705871U true CN201705871U (en) | 2011-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201633598U Expired - Fee Related CN201705871U (en) | 2010-04-14 | 2010-04-14 | Low-noise tooth-shaped chain transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201705871U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806342A (en) * | 2010-04-14 | 2010-08-18 | 吉林大学 | Silent chain transmission system with low noise |
-
2010
- 2010-04-14 CN CN2010201633598U patent/CN201705871U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806342A (en) * | 2010-04-14 | 2010-08-18 | 吉林大学 | Silent chain transmission system with low noise |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Changchun Beifang Instrument Equipment Co., Ltd. Assignor: Jilin University Contract record no.: 2011220000041 Denomination of utility model: Silent chain transmission system with low noise Granted publication date: 20110112 License type: Exclusive License Record date: 20110902 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20130414 |