CN107524488A - A kind of automobile with small output volumn engine chain timing system - Google Patents
A kind of automobile with small output volumn engine chain timing system Download PDFInfo
- Publication number
- CN107524488A CN107524488A CN201710623068.9A CN201710623068A CN107524488A CN 107524488 A CN107524488 A CN 107524488A CN 201710623068 A CN201710623068 A CN 201710623068A CN 107524488 A CN107524488 A CN 107524488A
- Authority
- CN
- China
- Prior art keywords
- guide rail
- chain
- stretcher
- dowel hole
- engine
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/348—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear by means acting on timing belts or 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
- F16H55/06—Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
-
- 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
-
- 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
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or 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
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/0812—Fluid pressure
Abstract
The present invention relates to kind of an automobile with small output volumn engine chain timing system, using high-strength nylon chain sprocket structure, make the contact between chain and sprocket wheel become nylon steel by original steel steel construction contact to contact, greatly reduce the kneading impact between tooth form chain and sprocket, so as to improve the NVH of timing chain system, make system motion more steady quiet.The present invention also adds anti-attrition layer on guide rail, reduces coefficient of friction, reduces the force of sliding friction between original chain upper link plate and guide rail, reduce the friction loss of system, improve the fuel utilization ratio of engine.The present invention also adds the filter screen for filtering machine oil in a machine construction, avoids impurity and enters stretcher, avoids timing system failure from causing engine great quality accident occur.Meanwhile the present invention instead of traditional bolt installation fixed form, reduce the horizontal abrasion of guide rail, improve the efficiency of assembling of engine also using the fixed guide rail mode of bearing pin link.
Description
Technical field
The present invention relates to the device that automobile engine acts on Timing Belt or chain, more particularly to a kind of automobile with small output volumn
Engine chain timing system.
Background technology
Automobile engine timing chain system is operated in the environment of oil jet lubrication, and stretcher is by the pressure of machine oil to chain
Bar is tensioned, and with the wear and aging of engine, the various impurity in machine oil are easily accessible stretcher, causes stretcher punching oil too late
When, cause stretcher response not in time, lose tension, the vibration aggravation of system, even result in chain and jump tooth, during intake and exhaust
Sequence entanglement, can occur high-speed impact between engine piston and valve in most cases, and engine can be damaged in moment.
The chain and sprocket wheel of available engine timing chain system are steel, when chain sprocket wheel engaging-in with high rotating speed
Loud noise will be produced, makes the NVH degradations of engine, this is also that many engines still use belt timing system
Reason, but service life to be present shorter for Timing Belt, the defects of easily cracking, thus, if making an uproar for chain drive system can be reduced
Sound, preferably support can be just provided for the overall performance of engine.
Reduce the mechanical friction loss of engine, the fuel utilization ratio for improving engine is the important of engine design and manufacture
Improvement direction, in order to reduce the vibration of chain in available engine, it is required for certain part increase guide rail around chain, but by
It is to rub between the chain and guide rail of high-speed motion, causes the friction loss of timing system larger, is unfavorable for improving hair
The fuel utilization ratio of motivation.
It is more to form the part of timing system, assembling is difficult, and the assembling of available engine timing system guide rail is mostly that bolt is fixed,
Efficiency of assembling is low, is unfavorable for improving production efficiency.
The content of the invention
The present invention proposes a kind of automobile with small output volumn engine chain timing system, and it can enter to the machine oil for entering stretcher
Row lubrication, prevents timing system invalidation functions, while has and reduce engine vibration, reduce system friction loss, reduce transmission
System noise, improve the advantages of engine assembly efficiency.
To reach above-mentioned purpose, the technical solution adopted in the present invention is：A kind of automobile with small output volumn engine chain timing
System, including chain, sprocket wheel, guide rail, tensioner arm and the stretcher fitted together successively, are characterized in that：The chain
It is the poly- precision drive tooth form chain of pipe nipple, the material of the sprocket wheel is high-strength nylon, and sprocket wheel is arranged to pitch radius with chain
Wheel circumferential position and the structure that changes, guide rail, tensioner arm guide rail surface on be provided with rubbing surface antifriction layer, chain and rubbing surface
Antifriction layer contact connection, stretcher include stretcher housing, stretcher filter screen and stretcher plunger.
Advantages of the present invention and beneficial effect are：The automobile with small output volumn engine chain timing system of the present invention, using height
Strength nylon chain sprocket structure, the contact between chain and sprocket wheel is set to be become nylon-steel by original steel-steel construction contact and be contacted,
The kneading impact between tooth form chain and sprocket is greatly reduced, so as to improve the NVH of timing chain system, makes system motion more
It is steady quiet.The present invention also adds anti-attrition layer on guide rail, reduces coefficient of friction, make original chain upper link plate and guide rail it
Between force of sliding friction reduce, reduce the friction loss of system, improve the fuel utilization ratio of engine.The present invention is also opening
The filter screen for filtering machine oil is added in machine construction, impurity is avoided and enters stretcher, avoids timing system failure from causing
There is great quality accident in engine.Meanwhile the present invention instead of traditional bolt also using the fixed guide rail mode of bearing pin link
Fixed form is installed, reduces the horizontal abrasion of guide rail, improves the efficiency of assembling of engine.
Brief description of the drawings
Fig. 1 is automobile with small output volumn engine chain timing system of the present invention；
Fig. 2 is the structure enlargement diagram of I in Fig. 1 of the present invention；
Fig. 3 is in Fig. 1 of the present invention II structure enlargement diagram；
Fig. 4 is stretcher structural representation in Fig. 1 of the present invention；
Reference is as follows：1 chain, 1-1 chains backboard, 2 sprocket wheels, 2-1 sprocket wheel pitch circle valley radius, 2-2 sprocket wheel pitch circle valleys
Radius, 3 guide rails, dowel hole on the guide rails of 3-1 first, dowel hole under dowel hole, the guide rails of 3-3 the 3rd on the guide rails of 3-2 second,
3-4 rail frictions face antifriction layer, 4 tensioner arms, 4-1 tensioner arms dowel hole, 5 stretchers, 5-1 stretchers housing, 5-2 stretchers
Filter screen.
Embodiment
As Figure 1-4, the present invention relates to a kind of automobile with small output volumn engine chain timing system, including it is assembled in successively
Chain 1, sprocket wheel 2, guide rail 3, means for belt tension 4 and stretcher 5 together, are characterized in that：The chain is the poly- accurate biography of pipe nipple
Moving teeth shape chain, the material of described sprocket wheel are high-strength nylon, sprocket wheel be arranged to pitch radius with sprocket periphery position and
Become, it is to adjust the order of radial variations, amplitude and phase to possess advantage, to eliminate specific chain drive resonance order, with reality
Existing more efficient system design；
Rubbing surface antifriction layer 3-4 is provided with the guide rail surface of the described tensioner arm 4 of guide rail 3, described chain 1 subtracts with rubbing surface
Rub a layer 3-4 contacts；
Described guide rail 3 and the installation of tensioner arm 4 are by dowel hole 3- on dowel hole 3-1 on the first guide rail, the second guide rail
2nd, under the 3rd guide rail dowel hole 3-3, tensioner arm dowel hole 4-1 be arranged on be fixed on the alignment pin in motor head face.
Such a assembly method has the advantage that, firstly, since chain 1 is arranged on sprocket wheel 2, and by guide rail 3 and tensioner arm 4
Axial constraint is acted on, and sprocket wheel 2 is fixed on camshaft, and therefore, in timing system operation process, guide rail 3 and tensioner arm 4 are with chain
The vibration of bar 1, in engine shaft to there is a small amount of vibration, so as to reduce the friction loss of guide rail 3 and the cross-sectional direction of tensioner arm 4.
Secondly, alignment pin is fixed on the front end of engine, and engine timing system assembly technology is simple, improves the assembling effect of engine
Rate.
Described stretcher 5 mainly includes the parts such as stretcher housing 5-1, stretcher filter screen 5-2 and stretcher plunger；
The stretcher filter screen 5-2 carries out secondary filter to the machine oil for entering stretcher oil pocket, makes the machine oil into stretcher oil pocket high
Degree cleaning, so as to ensure stretcher 5 can quick response, be adapted to engine various working conditions, timing chain 1 opened
Tightly, so as to ensure timing system in whole engine life, can normal work, reach timing system with the complete machine same life-span
Purpose.
As a preferred embodiment of the present invention, described rubbing surface antifriction layer 3-4 materials be tin class and tin zinc complex class from
Repair additive, the anti-wear and wear-resistant performance of the higher additive of Theil indices are preferable；And the antifriction of the compound additive of tin-zinc containing resists
It is more superior to grind performance.
As another preferred scheme of the present invention, the stretcher filter screen 5-2 mesh numbers reach more than 80 mesh.
As another preferred scheme of the present invention, dowel hole 3-3 is designed to circle under the 3rd guide rail, to guide rail
Play positioning action；Dowel hole 3-2 is designed to mounting hole on dowel hole 3-1 and the second guide rail on first guide rail, prevents from tiring out
Count influence of the tolerance to assembly technology.
Claims (4)
1. a kind of automobile with small output volumn engine chain timing system, including fit together successively chain, sprocket wheel, guide rail,
Tight arm and stretcher, it is characterised in that：The chain is the poly- precision drive tooth form chain of pipe nipple, and the material of the sprocket wheel is high-strength
Spend nylon, sprocket wheel is arranged to the structure that pitch radius changes with sprocket periphery position, guide rail, tensioner arm guide rail surface on
Rubbing surface antifriction layer is provided with, chain contacts connection with rubbing surface antifriction layer, and stretcher includes stretcher housing, stretcher filter screen
And stretcher plunger.
A kind of 2. automobile with small output volumn engine chain timing system according to claim goes 1, it is characterised in that：Guide rail bag
Include dowel hole on the first guide rail, dowel hole, guide rail and tensioner arm installation under dowel hole and the 3rd guide rail on the second guide rail
It is by dowel hole, tensioner arm alignment pin under dowel hole on dowel hole on the first guide rail, the second guide rail and the 3rd guide rail
Hole is arranged on and is fixed on the alignment pin in motor head face.
A kind of 3. automobile with small output volumn engine chain timing system according to claim goes 2, it is characterised in that:Stretcher
The mesh number of filter screen is set greater than 80 mesh.
A kind of 4. automobile with small output volumn engine chain timing system according to claim goes to 2 or 3, it is characterised in that:The
Dowel hole is arranged to circle under three guide rails, and dowel hole is arranged to kidney-shaped on dowel hole and the second guide rail on the first guide rail
Hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710623068.9A CN107524488A (en) | 2017-07-27 | 2017-07-27 | A kind of automobile with small output volumn engine chain timing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710623068.9A CN107524488A (en) | 2017-07-27 | 2017-07-27 | A kind of automobile with small output volumn engine chain timing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107524488A true CN107524488A (en) | 2017-12-29 |
Family
ID=60680147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710623068.9A Pending CN107524488A (en) | 2017-07-27 | 2017-07-27 | A kind of automobile with small output volumn engine chain timing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107524488A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110664356A (en) * | 2018-07-02 | 2020-01-10 | 青岛海尔洗衣机有限公司 | Belt wheel assembly and shoe washing machine |
| CN112855896A (en) * | 2021-01-14 | 2021-05-28 | 王平 | Flexible duplex sprocket |
| CN114012979A (en) * | 2021-12-01 | 2022-02-08 | 伊维氏传动系统（平湖）有限公司 | Guide rail assembly process and structure |
| CN114506307A (en) * | 2020-10-28 | 2022-05-17 | 丰田自动车株式会社 | Vehicle control device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101918735A (en) * | 2007-09-28 | 2010-12-15 | 博格华纳公司 | Multiple tension reducing sprockets in a chain and sprocket system |
| CN104911566A (en) * | 2014-03-14 | 2015-09-16 | 福特全球技术公司 | Diamond-like carbon coating on chain guides and tensioning arms for internal combustion engines |
| CN104989479A (en) * | 2015-06-23 | 2015-10-21 | 华晨汽车集团控股有限公司 | Engine chain timing system |
| CN205780064U (en) * | 2016-06-17 | 2016-12-07 | 浙江吉利罗佑发动机有限公司 | A kind of hydraulic pressure timing stretcher of band filter screen |
-
2017
- 2017-07-27 CN CN201710623068.9A patent/CN107524488A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101918735A (en) * | 2007-09-28 | 2010-12-15 | 博格华纳公司 | Multiple tension reducing sprockets in a chain and sprocket system |
| CN104911566A (en) * | 2014-03-14 | 2015-09-16 | 福特全球技术公司 | Diamond-like carbon coating on chain guides and tensioning arms for internal combustion engines |
| CN104989479A (en) * | 2015-06-23 | 2015-10-21 | 华晨汽车集团控股有限公司 | Engine chain timing system |
| CN205780064U (en) * | 2016-06-17 | 2016-12-07 | 浙江吉利罗佑发动机有限公司 | A kind of hydraulic pressure timing stretcher of band filter screen |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110664356A (en) * | 2018-07-02 | 2020-01-10 | 青岛海尔洗衣机有限公司 | Belt wheel assembly and shoe washing machine |
| CN114506307A (en) * | 2020-10-28 | 2022-05-17 | 丰田自动车株式会社 | Vehicle control device |
| CN112855896A (en) * | 2021-01-14 | 2021-05-28 | 王平 | Flexible duplex sprocket |
| CN112855896B (en) * | 2021-01-14 | 2022-09-02 | 巢湖市鼎昌输送机械有限公司 | Flexible duplex sprocket |
| CN114012979A (en) * | 2021-12-01 | 2022-02-08 | 伊维氏传动系统（平湖）有限公司 | Guide rail assembly process and structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171229 |