CN201771569U - Lubrication structure of engine timing chain system - Google Patents
Lubrication structure of engine timing chain system Download PDFInfo
- Publication number
- CN201771569U CN201771569U CN2010205291208U CN201020529120U CN201771569U CN 201771569 U CN201771569 U CN 201771569U CN 2010205291208 U CN2010205291208 U CN 2010205291208U CN 201020529120 U CN201020529120 U CN 201020529120U CN 201771569 U CN201771569 U CN 201771569U
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- timing chain
- hole
- hydraulic tensioner
- nozzle opening
- rail assembly
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Abstract
The utility model provides a lubrication structure of an engine timing chain system, comprising a hydraulic stretcher, a timing chain moving rail assembly and a timing chain assembly. The utility model is characterized in that an oil injection hole is arranged on the hydraulic stretcher and is connected to an oil groove in the hydraulic stretcher through a bolt through hole of the hydraulic stretcher; a through hole, with respect to the oil injection hole is horizontally arranged on the timing chain moving rail assembly, thereby the sprayed oil can reach the timing chain assembly through the through hole on the moving rail assembly. With the oil storage function of the hydraulic stretcher, the utility model has advantages of effectively ensuring a timely lubrication of the engine timing chain; reducing the amount of oil holes and oil channels on the cylinder body; simplifying the lubrication structure of the timing chain system.
Description
Technical field
The utility model relates to lubricating structure of engine, is specifically related to the novel lubricating timing chain system lubricating structure that the moving rail assembly of a kind of engine timing chain hydraulic tensioner and timing chain constitutes.
Background technique
The friction of each kinematic pair of engine timing chain system is very big, needs the enough lubricated usability and life-spans that could guarantee the timing chain system.The lubricated of conventional engines timing chain all is by drawing a special draining hole from upper end cylinder cap or cylinder body, slowly flow on the sprocket wheel that is installed in bent axle at the effect lower edge of gravity cylinder cap, outer surface of cylinder block, engagement by sprocket wheel and chain is lubricated chain, and by chain lubricant oil is sent on other parts of timing chain system.This traditional mode is owing to consider the relation of oil pressure, and releasing oil from oil outlet can not be too many, and machine oil in process of flowing than the easily evaporation in this process of lead aircraft oil, the oil level that arrives sprocket wheel like this is insufficient.If the motor storage period is long, lubricant oil evaporates.In case engine start, and machine oil needs the long period could arrive sprocket wheel will cause in a period of time that chain is bringing into operation unlubricatedly, makes chain, sprocket wheel and rail friction aggravation.
Summary of the invention
The utility model proposes a kind of lubricating structure of engine timing chain system, adopt the hydraulic tensioner oil spout by the lubricated chain system part of the through hole of moving rail, at engine start in a flash, stretcher just can be lubricated chain in oil spout, motor quits work, the stretcher oil spout stops, to solve the problems referred to above that prior art exists.
The technical solution of the utility model scheme is as follows:
A kind of lubricating structure of engine timing chain system, it comprises hydraulic tensioner, the moving rail assembly of timing chain and timing chain assembly; The moving rail assembly of described timing chain is installed in engine cylinder and covers, and hydraulic tensioner is installed on the engine cylinder-body; The piston of hydraulic tensioner is over against the moving rail assembly of timing chain left side, by the guiding of the oil groove on the hydraulic tensioner machine oil is introduced the oil inlet hole of hydraulic tensioner from the machine oil of oil duct, form oil pressure, promote piston motion, the timing chain assembly on the moving rail assembly tensioning right side of band timing chain.
The utility model changes the lubricating structure of traditional timing chain, make the lubricant oil of the total Ceng Suoxu of timing chain not need from cylinder block and head, to increase the draining passage especially, and direct nozzle opening ejection by the timing hydraulic tensioner, the oily channel injection of mistake by the moving rail assembly of timing chain is taken lubricant oil on sprocket wheel and other guide rails to by chain transmission to timing chain.Its specific implementation is to open a nozzle opening on described hydraulic tensioner, and the interior oil groove of the bolt hole of nozzle opening by hydraulic tensioner and hydraulic tensioner is connected; Simultaneously, on the moving rail assembly of timing chain, be horizontally arranged with a through hole relative with nozzle opening, after being installed on the cylinder body, engine start, the oil that oil pump pumps is introduced the stretcher oil groove by the oil duct on the cylinder body.When machine oil has formed bigger oil pressure during than the nozzle opening of minor diameter on by stretcher, the machine oil of ejection is reached on the timing chain assembly by the through hole on the moving rail assembly.
The utility model is compared with prior art and is had the following advantages:
1, compares this structure with other similar hydraulic tensioners only by on stretcher, increasing by a nozzle opening, one through hole (this through hole is with the molding and forming of moving rail assembly) is set on moving rail assembly simultaneously, this structure not only can effectively guarantee the lubricated of engine timing chain, can also reduce simultaneously the quantity of machine tank filler sleeve oil duct on cylinder body, reduce machine oil in extra-organismal working time, helped to reduce the oil content in engine oil consumption and the minimizing waste gas.
2, owing to be the lubricant oil and the pressure of the hydraulic tensioner that utilize to utilize, after stretcher was installed on the cylinder body, the stretcher oil groove was sealed by cylinder body, had possessed the oil storage function, make motor quit work oil pump when stopping pump oil in the stretcher still organic oil keep.As long as motor is worked at the beginning, oil pump begins pump oil, and oil pressure has just been arranged, in case oil pressure has been arranged, the oil that is stored in the stretcher oil groove will spray immediately, can reach in time lubricating whole timing chain assembly.
3, the utility model is realized the in time lubricated, simple in structure of timing chain system by hydraulic tensioner and the combination of moving rail assembly, and cost does not almost increase.
Description of drawings
The mounting arrangements schematic representation of Fig. 1 timing chain system on motor.
Fig. 2 hydraulic tensioner plan view.
Fig. 3 hydraulic tensioner left view.
Fig. 4 hydraulic tensioner rear view.
Fig. 5 timing chain moves rail assembly through-hole structure schematic representation.
Embodiment
The utility model will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, the lubricating structure of timing chain system is mainly concerned with hydraulic tensioner 1, the moving rail assembly 2 of timing chain and timing chain assembly 5.Whole timing chain system is installed in motor head.The moving rail assembly 2 of timing chain is installed on the cylinder cap 10, and hydraulic tensioner 1 is installed on the cylinder body 20.From the guiding by the oil groove on the stretcher 11 of the machine oil of oil duct machine oil is introduced the oil inlet hole 12 of stretcher, form oil pressure, promote piston 13 motions, drive the moving rail assembly 2 tensioning timing chain assemblies 5 of timing chain.
By calculating oil pressure and spatial relation, on the bolt installation lug on stretcher housing top, open a nozzle opening 14 that diameter is less, this hole is vertical with the bolt mounting holes 15 of stretcher, and its left end and bolt mounting holes 15 connect.Nozzle opening 14 is connected (shown in Fig. 2, Fig. 3 and 4) by bolt hole 15 with the oil groove 11 of stretcher.Simultaneously, relative through hole 21(such as Fig. 5 of cross setting one and nozzle opening 14 on the moving rail assembly 2 of timing chain), the machine oil that sprays from nozzle opening 14 is ejected on the timing chain assembly 5 by through hole 21.Timing chain assembly 5 takes other parts of timing chain such as admission cam shaft sprocket wheel 6,7, orbit determination 8 and crankshaft timing sprocket 9 to by the injection machine oil of sprocket wheel 9 transmissions self-hydraulic stretcher in future 1, thereby realizes lubricating whole timing chain systematic part.
Hydraulic tensioner and timing chain rail assembly installment state be as shown in Figure 5:
The center line linear distance of the axis of nozzle opening 14 and piston 13 is A, and the scope of A is at 17mm～19mm(such as Fig. 4).
The axis of nozzle opening 14 and horizontal plane angle are B when being installed on the cylinder body 20, and the scope of B is 8 °～12 ° (as Fig. 5).
When installment state, preferably to move the center line of through hole 21 of rail assembly parallel and high slightly with timing chain for the axis of nozzle opening 14, generally is higher than the center line 0.8mm～1.5mm of through hole 21.In the running of whole chain system, the axis of stretcher nozzle opening 14 is in all must the scope at the through hole 21 of the moving rail assembly of timing chain.This is in order to guarantee when the timing chain system moves along with chain extends, piston 13 moves to moving rail assembly 2 under the engine oil pressure effect, apply tension force, timing chain moves rail assembly 2 tensioning gradually, the motion of servo-actuated rail assembly takes place in the through hole 21 on the moving rail assembly 2 of timing chain, when the axis that makes nozzle opening 14 was lower than through hole 21 center lines of the moving rail assembly of timing chain, the oil of ejection still can arrive on the timing chains 5 by the through hole 21 of the moving rail assembly of timing chain.
Nozzle opening 14 apertures of hydraulic tensioner are D, the scope of D is 0.5mm～1.0mm(such as Fig. 4), to guarantee that the machine oil that ejects has enough pressure can pass through distance C (aperture of nozzle opening 14 is to the distance of timing chain assembly 5) and arrives timing chain assembly 5, the scope of C is 52mm～70mm(such as Fig. 5).
The through hole 21 of the moving rail assembly of timing chain is processed as horn-like (as Fig. 5), near stretcher one side finish dimensional is E, the scope of E is 6.9mm～8.9mm(such as Fig. 5), be F near timing chain assembly one side finish dimensional, the scope of F is 9.2mm～11.2mm(such as Fig. 5).This structure makes it possible to enter the machine oil of the through hole 21 of the moving rail assembly of timing chain can be smoothly by not being blocked.
Claims (8)
1. the lubricating structure of an engine timing chain system, it comprises hydraulic tensioner (1), the moving rail assembly (2) of timing chain and timing chain assembly (5); The moving rail assembly (2) of described timing chain is installed on the engine cylinder cover (10), and hydraulic tensioner (1) is installed on the engine cylinder-body (20); The piston (13) of hydraulic tensioner (1) promotes the timing chain assembly (5) on moving rail assembly (2) the tensioning right side of timing chain over against the moving rail assembly (2) of timing chain left side;
It is characterized in that: have a nozzle opening (14) on described hydraulic tensioner (1), the interior oil groove (11) of the bolt hole (15) of nozzle opening (14) by hydraulic tensioner (1) and hydraulic tensioner is connected; Simultaneously, be horizontally arranged with a through hole (21) relative with nozzle opening (14) on the moving rail assembly (2) of timing chain, the machine oil that sprays from nozzle opening (14) is ejected on the timing chain assembly (5) by through hole (21).
2. the lubricating structure of engine timing chain system according to claim 1 is characterized in that: the axis of the nozzle opening of described stretcher (14) is in the scope of the through hole (21) of the moving rail assembly of timing chain.
3. the lubricating structure of engine timing chain system according to claim 1, it is characterized in that: the axis of described nozzle opening (14) is parallel with the center line that timing chain moves the through hole (21) on the rail assembly, and is higher than the center line 0.8mm～1.5mm of through hole (21).
4. the lubricating structure of engine timing chain system according to claim 1, it is characterized in that: the nozzle opening of described hydraulic tensioner (14) aperture is D, the scope of D is 0.5mm～1.0mm, and the aperture of nozzle opening (14) is 52mm～70mm to the scope of the distance C of timing chain assembly (5).
5. the lubricating structure of engine timing chain system according to claim 1, it is characterized in that: the through hole (21) of the moving rail assembly of described timing chain is for horn-like, near hydraulic tensioner one side finish dimensional is E, is F near timing chain assembly one side finish dimensional, E＜F.
6. the lubricating structure of engine timing chain system according to claim 1, it is characterized in that: the scope of described hydraulic tensioner one side finish dimensional E is 6.9mm～8.9mm, and the scope of close timing chain assembly one side finish dimensional F is 9.2mm～11.2mm.
7. the lubricating structure of engine timing chain system according to claim 1 is characterized in that: the center line linear distance of the axis of the nozzle opening on the described hydraulic tensioner (14) and piston (13) is A, and the scope of A is at 17mm～19mm.
8. the lubricating structure of engine timing chain system according to claim 1 is characterized in that: when being installed on the cylinder body, the axis of the nozzle opening on the described hydraulic tensioner (14) and horizontal plane angle are B, and the scope of B is 8 °～12 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205291208U CN201771569U (en) | 2010-09-15 | 2010-09-15 | Lubrication structure of engine timing chain system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205291208U CN201771569U (en) | 2010-09-15 | 2010-09-15 | Lubrication structure of engine timing chain system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201771569U true CN201771569U (en) | 2011-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205291208U Expired - Fee Related CN201771569U (en) | 2010-09-15 | 2010-09-15 | Lubrication structure of engine timing chain system |
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| CN (1) | CN201771569U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400736A (en) * | 2010-09-15 | 2012-04-04 | 重庆长安汽车股份有限公司 | Lubricating structure of timing chain system of engine |
| CN103266929A (en) * | 2013-04-29 | 2013-08-28 | 东风朝阳朝柴动力有限公司 | Drive sprocket lubricating and cooling device |
| CN104975904A (en) * | 2014-04-04 | 2015-10-14 | 上海汽车集团股份有限公司 | Chain transmission system |
| CN105443265A (en) * | 2015-10-29 | 2016-03-30 | 宁波吉利罗佑发动机零部件有限公司 | Engine timing shell connecting structure |
| CN112082762A (en) * | 2020-09-18 | 2020-12-15 | 奇瑞汽车股份有限公司 | Matching test method and device of engine timing system and storage medium |
-
2010
- 2010-09-15 CN CN2010205291208U patent/CN201771569U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400736A (en) * | 2010-09-15 | 2012-04-04 | 重庆长安汽车股份有限公司 | Lubricating structure of timing chain system of engine |
| CN103266929A (en) * | 2013-04-29 | 2013-08-28 | 东风朝阳朝柴动力有限公司 | Drive sprocket lubricating and cooling device |
| CN104975904A (en) * | 2014-04-04 | 2015-10-14 | 上海汽车集团股份有限公司 | Chain transmission system |
| CN105443265A (en) * | 2015-10-29 | 2016-03-30 | 宁波吉利罗佑发动机零部件有限公司 | Engine timing shell connecting structure |
| CN105443265B (en) * | 2015-10-29 | 2018-02-13 | 济南吉利汽车零部件有限公司 | Engine timing shell attachment structure |
| CN112082762A (en) * | 2020-09-18 | 2020-12-15 | 奇瑞汽车股份有限公司 | Matching test method and device of engine timing system and storage medium |
| CN112082762B (en) * | 2020-09-18 | 2022-02-01 | 奇瑞汽车股份有限公司 | Matching test method and device of engine timing system and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20140915 |
|
| EXPY | Termination of patent right or utility model |