CN203008982U - Chain guide plate structure for engine timing chain system - Google Patents
Chain guide plate structure for engine timing chain system Download PDFInfo
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- CN203008982U CN203008982U CN 201220600709 CN201220600709U CN203008982U CN 203008982 U CN203008982 U CN 203008982U CN 201220600709 CN201220600709 CN 201220600709 CN 201220600709 U CN201220600709 U CN 201220600709U CN 203008982 U CN203008982 U CN 203008982U
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- chain
- roller bearing
- guide chain
- plate structure
- guide plate
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Abstract
The utility model discloses a chain guide plate structure for an engine timing chain system and aims to provide a chain guide plate structure capable of reducing a friction force between a chain and a chain guide plate and improving wear resistance of the guide plate. The chain guide plate structure comprises a chain guide plate bracket and a chain guide slot; a plurality of round holes is formed at the corresponding positions on both side walls of the chain guide slot along the direction of the chain guide slot; a rolling shaft is arranged between the corresponding round holes on the two side walls; cylindrical step shafts of which diameters are less than that of the middle part of the rolling shaft are arranged at both ends of the rolling shaft; and cylindrical steps at both the ends of the rolling shaft are respectively matched with the corresponding round holes on the two side walls. According to the utility model, the rolling friction force between the chain and the chain guide plate can be reduced, effective power of an engine is improved and meanwhile, the requirements on the material and the machining process of the chain guide plate are further reduced.
Description
Technical field
The utility model relates to a kind of guide chain plate structure, refers in particular to a kind of guide chain plate structure of engine timing chain system.
Background technique
Along with the development of automotive engineering, engine timing system adopts the chain transmission more and more at present, and timing chain drive system compact structure, reliability and wear resistance are high.When the design chain length, in order to allow motor reach suitable effect, the porthole opening angle, fuel injection quantity, therefore ignition timing etc. all will make a change, and being used for the timing chain of these parts of interlock will have a changeable scope, that is to say that chain length is longer, produce larger noise and vibration when this will cause engine operation, generally adopt the guide chain plate to come the pretension timing chain system.The guide chain plate structure of existing timing system is when engine operation, directly contact between timing chain and guide chain plate, in the chain movement process and sliding friction between the guide chain plate, frictional force is larger, affect the effective efficiency of motor, thereby reduced the useful horsepower of motor.Simultaneously, the guide chain plate generally adopts injected plastics material, directly contacts with chain, and easily wearing and tearing have increased using the requirement of material, and difficulty of processing is higher.
Chinese patent notice of authorization CN 201934160U, a kind of novel engine timing chain system is disclosed August 17 2011 notice of authorization day, it comprises the crankshaft timing sprocket that is arranged on bent axle, be arranged on admission cam shaft timing sprocket and the exhaust cam shaft timing sprocket told on wheel shaft, timing chain around three sprocket wheels, the timing chain tensioning mechanism, be arranged on the guide chain plate in the timing chain outside, this timing chain system comprises an additional guide carrier bar, between admission cam shaft timing sprocket and exhaust cam shaft timing sprocket.Increase by an additional guide carrier bar, can reduce the vibration of timing chain, but still can't solve the friction and wear problem between guide chain plate and chain.
The model utility content
The utility model is when overcoming engine operation, and between timing chain and guide chain plate, force of sliding friction is large, and the problem that the guide chain plate is easy to wear provides a kind of and can reduce frictional force between timing chain and guide chain plate, improves the guide chain plate structure of guide chain plate wear resistance.
The guide chain plate structure of a kind of engine timing chain system of the present utility model, comprise guide chain timbering and guide chain groove, described guide chain groove two side corresponding position is provided with several circular holes along the guide chain groove direction, be provided with roller bearing between the corresponding circular hole in described two side, described roller bearing two ends are provided with diameter less than the cylinder multidiameter shaft of roller bearing intermediate portion diameter, the circular hole cooperation corresponding to the two side respectively of described roller bearing two ends multidiameter shaft.By a plurality of roller bearings are set in the guide chain groove of guide chain plate, chain is not directly contacted with the guide chain plate, the requirement of reduction to injected plastics material, roller bearing directly contacts with chain simultaneously, reduced significantly the friction area of chain, wherein the multidiameter shaft at roller bearing two ends can roll in the corresponding circular hole of guide chain groove sidewall, the sliding friction of chain between when motion and guide chain plate be converted into and roller bearing between rolling friction, reduce the frictional work between friction pair, effectively improved the effective mechanical power of motor.
As preferably, described roller bearing multidiameter shaft be provided with axle sleeve between circular hole coordinates.The guide chain groove sidewall at circular hole place is generally injected plastics material, require processing circular hole surface to have that smoothness is more difficult preferably, the guide chain groove sidewall is generally narrow simultaneously, and roller bearing will bear the radial force of chain pretension, roll because area of contact is little in circular hole for a long time, the situation of easy appearance cutting roller bearing two ends multidiameter shaft, the roller bearing multidiameter shaft with axle sleeve is set between circular hole coordinates, the roller bearing multidiameter shaft rolls in axle sleeve, not only reduce the requirement on machining accuracy to circular hole, also increased the area of contact of multidiameter shaft and shaft room simultaneously.
As preferably, described roller bearing jack shaft is partly the little circular arc oblique crank Z of mid diameter large both sides diameter.The lubricant oil that this structure is conducive to that when motor is not worked chain is got rid of up flows into the multidiameter shaft at roller bearing two ends, reduces the frictional force between revolute pair, has improved simultaneously the resistance to flexure of axle.
As preferably, be provided with the beaming roller that rolls and coordinate with it on described roller bearing.Beaming roller is enclosed within on roller bearing, chain directly contacts with beaming roller, in movement process, rotate between chain and beaming roller, rotate between beaming roller and roller bearing, rotate between the two ends multidiameter shaft of roller bearing and circular hole, rotate between a plurality of revolute pairs, can reduce the two ends multidiameter shaft of roller bearing and rotate wearing and tearing, in the working life of improving roller bearing, beaming roller has also increased the resistance to flexure of roller bearing simultaneously.
As preferably, 2 ~ 4 of described roller bearings are one group, distribute along the guide chain groove direction, wherein close-packed arrays between same group of roller bearing.Because the guide chain plate is curved surface, can form certain angle at the roller bearing place between chain link, in the chain movement process and the angle between chain link and roller bearing form to impact and produce vibration, increased the unstability of guide chain plate, adopting 2 ~ 4 roller bearings is that one group of close-packed arrays can prevent that roller bearing is absorbed in the angle between chain link, thereby makes chain movement more smoothly stable.
As preferably, described roller bearing is 4 ~ 6 one group at the larger end of guide chain groove curvature.Guide chain plate one end curvature is larger, and the angle between chain link is also corresponding less, and roller bearing easily is absorbed in angle between chain link, forms larger impact shock, and the distribution density that increases roller bearing at curvature larger guide chain plate two ends can guarantee the steadily smooth of chain movement.
Therefore, the utlity model has following beneficial effect: be rolling friction between (1) timing chain and guide chain plate, reduced frictional force, improve effective engine power; (2) chain is positioned at guide chain plate plate face and directly contacts, and has reduced the wearing and tearing to the guide chain plate, has also reduced the requirement to guide chain plate material and processing technology simultaneously.
Description of drawings
Fig. 1 is plan view of the present utility model;
Fig. 2 is the utility model embodiment 1 sectional view;
Fig. 3 is the utility model embodiment 2 sectional view;
Fig. 4 is the utility model embodiment 3 sectional view;
In figure: 1. guide chain timbering, 2. guide chain groove, 3. circular hole, 4. roller bearing, 5. multidiameter shaft, 6 axle sleeves, 7. beaming roller.
Embodiment
The utility model will be further described below in conjunction with accompanying drawing.
At Fig. 1, in the embodiment 1 of Fig. 2, a kind of guide chain plate structure of engine timing chain system, comprise guide chain timbering 1 and guide chain groove 2, guide chain groove 2 two side corresponding positions are provided with several circular holes 3 along guide chain groove 2 directions, be provided with roller bearing 4 between the corresponding circular hole 3 in two side, roller bearing 4 two ends are provided with diameter less than the multidiameter shaft 5 of roller bearing 4 intermediate portion diameters, and roller bearing 4 two ends multidiameter shafts 5 are circular hole 3 cooperations corresponding to the two side respectively.By a plurality of roller bearings 4 being set the guide chain groove 2 of guide chain plate is interior, chain is not directly contacted with the guide chain plate, the requirement of reduction to injected plastics material, roller bearing 4 directly contacts with chain simultaneously, reduced significantly the friction area of chain, wherein the multidiameter shaft 5 at roller bearing 4 two ends can roll in the corresponding circular hole 3 of guide chain groove 2 sidewalls, the sliding friction of chain between when motion and guide chain plate be converted into and roller bearing 4 between rolling friction, reduce the frictional work between friction pair, effectively improved the effective mechanical power of motor.Roller bearing 4 multidiameter shafts 5 be provided with axle sleeve 6 between circular hole 3 coordinates.Guide chain groove 2 sidewalls at circular hole 3 places are generally injected plastics material, require processing circular hole 3 surfaces to have that smoothness is more difficult preferably, guide chain groove 2 sidewalls are generally narrow simultaneously, and roller bearing 4 will bear the radial force of chain pretension, for a long time in the interior rolling of circular hole 3 because area of contact is little, the situation that cutting roller bearing 4 two ends multidiameter shafts 5 easily occur, roller bearing 4 multidiameter shafts 5 with axle sleeve 6 is set between circular hole 3 coordinates, roller bearing 4 multidiameter shafts 5 are in the interior rolling of axle sleeve 6, not only reduce the requirement on machining accuracy to circular hole 3, also increased the area of contact of 6, multidiameter shaft 5 and axle sleeve simultaneously.
Roller bearing 4 is 2 ~ 4 one group, distributes along guide chain groove 2 directions, wherein close-packed arrays between same group of roller bearing 4.Because the guide chain plate is curved surface, can form certain angle at roller bearing 4 places between chain link, in the chain movement process and the angle between chain link and roller bearing 4 form to impact and produce vibration, increased the unstability of guide chain plate, adopting 2 ~ 4 roller bearings 4 is that one group of close-packed arrays can prevent that roller bearing 4 is absorbed in the angle between chain link, thereby makes chain movement more smoothly stable.Roller bearing 4 is at 4 ~ 6 one group, the larger end of guide chain groove 2 curvature.Guide chain plate one end curvature is larger, angle between chain link is also corresponding less, roller bearing 4 easily is absorbed in angle between chain link, forms larger impact shock, and the distribution density that increases roller bearing 4 at curvature larger guide chain plate two ends can guarantee the steadily smooth of chain movement.
In the embodiment 2 of Fig. 3, roller bearing 4 jack shafts are partly the little circular arc oblique crank Z of mid diameter large both sides diameter.The lubricant oil that this structure is conducive to that when motor is not worked chain is got rid of up flows into the multidiameter shaft at roller bearing two ends, reduces the frictional force between revolute pair, has improved simultaneously the resistance to flexure of axle.
In the embodiment 3 of Fig. 4, be provided with the beaming roller 7 that rolls and coordinate with it on roller bearing 4.Beaming roller 7 is enclosed within on roller bearing 4, chain directly contacts with beaming roller 7, in movement process, rotate between chain and beaming roller 7, rotate between beaming roller 7 and roller bearing 4, rotate between the two ends multidiameter shaft 5 of roller bearing 4 and circular hole 3, rotate between a plurality of revolute pairs, can reduce the two ends multidiameter shaft 5 of roller bearing 4 and rotate wearing and tearing, in the working life of improving roller bearing 4, beaming roller 7 has also increased the resistance to flexure of roller bearing 4 simultaneously.
Therefore, in the guide chain plate structure of a kind of engine timing chain system of the present utility model, be rolling friction between timing chain and guide chain plate, reduced frictional force, improve effective engine power; Chain is positioned at guide chain plate plate face and directly contacts, and has reduced the wearing and tearing to the guide chain plate, has also reduced the requirement to guide chain plate material and processing technology simultaneously.
Claims (6)
1. the guide chain plate structure of an engine timing chain system, comprise guide chain timbering (1) and guide chain groove (2), it is characterized in that, described guide chain groove (2) two side corresponding position is provided with several circular holes (3) along guide chain groove (2) direction, be provided with roller bearing (4) between the corresponding circular hole in described two side (3), described roller bearing (4) two ends are provided with diameter less than the cylinder multidiameter shaft (5) of roller bearing (4) intermediate portion diameter, and described roller bearing (4) two ends multidiameter shafts (5) circular hole corresponding to the two side (3) respectively coordinate.
2. the guide chain plate structure of a kind of engine timing chain system according to claim 1, is characterized in that, described roller bearing (4) multidiameter shaft (5) be provided with axle sleeve (6) between circular hole (3) coordinates.
3. the guide chain plate structure of a kind of engine timing chain system according to claim 1 and 2, is characterized in that, described roller bearing (4) jack shaft is partly the little circular arc oblique crank Z of mid diameter large both sides diameter.
4. the guide chain plate structure of a kind of engine timing chain system according to claim 1, is characterized in that, is provided with the beaming roller (7) that rolls and coordinate with it on described roller bearing (4).
5. the guide chain plate structure of according to claim 1 and 2 or 4 described a kind of engine timing chain systems, is characterized in that, (4) 2 ~ 4 of described roller bearings are one group, distributes along guide chain groove (2) direction, wherein close-packed arrays between same group of roller bearing (4).
6. the guide chain plate structure of according to claim 1 and 2 or 4 described a kind of engine timing chain systems, is characterized in that, described roller bearing (4) is 4 ~ 6 one group at the larger end of guide chain groove (2) curvature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220600709 CN203008982U (en) | 2012-11-15 | 2012-11-15 | Chain guide plate structure for engine timing chain system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220600709 CN203008982U (en) | 2012-11-15 | 2012-11-15 | Chain guide plate structure for engine timing chain system |
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| Publication Number | Publication Date |
|---|---|
| CN203008982U true CN203008982U (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220600709 Expired - Fee Related CN203008982U (en) | 2012-11-15 | 2012-11-15 | Chain guide plate structure for engine timing chain system |
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| Country | Link |
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| CN (1) | CN203008982U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604630A (en) * | 2014-11-14 | 2016-05-25 | 现代自动车株式会社 | Chain guide structure for vehicle engine |
| CN105804824A (en) * | 2016-05-20 | 2016-07-27 | 昆山美仑工业样机有限公司 | Fast manufacturing technology for model machine of engine timing system transmission movable rail |
-
2012
- 2012-11-15 CN CN 201220600709 patent/CN203008982U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604630A (en) * | 2014-11-14 | 2016-05-25 | 现代自动车株式会社 | Chain guide structure for vehicle engine |
| CN105604630B (en) * | 2014-11-14 | 2020-02-14 | 现代自动车株式会社 | Chain guide structure for automobile engine |
| CN105804824A (en) * | 2016-05-20 | 2016-07-27 | 昆山美仑工业样机有限公司 | Fast manufacturing technology for model machine of engine timing system transmission movable rail |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20131115 |