CN204212822U - Engine timing chain rotation mechanism - Google Patents
Engine timing chain rotation mechanism Download PDFInfo
- Publication number
- CN204212822U CN204212822U CN201420377466.9U CN201420377466U CN204212822U CN 204212822 U CN204212822 U CN 204212822U CN 201420377466 U CN201420377466 U CN 201420377466U CN 204212822 U CN204212822 U CN 204212822U
- Authority
- CN
- China
- Prior art keywords
- chain
- cam shaft
- sprocket wheel
- shaft sprocket
- rolling bearing
- 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.)
- Expired - Fee Related
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- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The utility model relates to a kind of geartrain systems, is specially engine timing chain rotation mechanism.Comprise hydraulic tensioner, timing chain guide rail, admission cam shaft sprocket wheel, exhaust cam shaft sprocket wheel, crankshaft sprocket, is characterized in that: chain guide is separately positioned on crankshaft sprocket and admission cam shaft sprocket wheel, the outside of the chain between exhaust cam shaft sprocket wheel, chain is overlapped on chain guide, and described hydraulic tensioner is arranged on admission cam shaft sprocket wheel with outside the chain guide of crankshaft sprocket connecting end; Described chain structure comprises outer plate, and outer plate has been sticked inner plate, and be sticked between two inner plates rolling bearing, is fixedly connected with between described outer plate, inner plate, rolling bearing by interspersed positioning bolt.The utility model is rational in infrastructure, simple, practical.
Description
Technical field
The utility model relates to a kind of geartrain systems, is specially engine timing chain rotation mechanism.
Background technique
Car engine timing chain rotation mechanism comprises hydraulic tensioner, timing chain guide rail, admission cam shaft sprocket wheel, exhaust cam shaft sprocket wheel, crankshaft sprocket.
Car engine timing chain turns transmission system, because of its have that compact structure, transmission efficiency are high, the distinguishing feature such as reliability and wear resistance is good, maintenance-free is widely used in car engine timing transmission system, but the shortcoming that its rotational noise is large, transmission resistance is large also cannot effectively solve always.
Its general installation method of traditional hydraulic tensioner is bolted on cylinder body by stretcher with two, because to-and-fro motion needs lubricant oil, but add lubricant oil to stretcher, stretcher is needed to be arranged on cylinder body, but along with development, engine interior is installed more and more compacter, and the installation of this kind of pattern does not meet novel development.
The chain of engine timing is the state of sliding in running, can not move with gear clamping itself, can not perfectly run.
Model utility content
The purpose of this utility model is to provide a kind of rational in infrastructure, simple, practical, effectively can solve the engine timing chain rotation mechanism of existing issue.
For meeting above-mentioned purpose, the utility model provides a kind of effective technological scheme:
Engine timing chain rotation mechanism, comprise hydraulic tensioner, timing chain guide rail, admission cam shaft sprocket wheel, exhaust cam shaft sprocket wheel, crankshaft sprocket, it is characterized in that: chain guide is separately positioned on crankshaft sprocket and admission cam shaft sprocket wheel, the outside of the chain between exhaust cam shaft sprocket wheel, chain is overlapped on chain guide, and described hydraulic tensioner is arranged on admission cam shaft sprocket wheel with outside the chain guide of crankshaft sprocket connecting end; Described chain structure comprises outer plate, outer plate has been sticked inner plate, be sticked between two inner plates rolling bearing, be fixedly connected with by interspersed positioning bolt between described outer plate, inner plate, rolling bearing, described rolling bearing both sides offer groove, and rolling bearing laterally offers three road receiving grooves, be provided with three layers in longitudinal direction and interlayer is installed, all ball being installed at receiving groove with installing in interlayer, being separatedly equipped with groove in described interlayer, between the groove in each interlayer, being connected with oil duct mutually.
Further, described crankshaft sprocket is socketed with the shock ring adopting rubber to make.
Further, on the housing outer surface intermediate portion of described hydraulic tensioner, mantle fiber has outside thread, the termination, left side of frame is for exporting termination, this termination forms rod member with between external thread section at housing cavity, rod member offers oilhole, oilhole communicates with the active chamber become in housing, reciprocating piston is provided with in active chamber, active chamber inwall is provided with limited location snap ring, coil tension spring is provided with in piston, spring one end withstands on plunger shaping in piston, and the other end withstands on base shaping on active chamber bottom surface.
Contrast the deficiencies in the prior art, the beneficial effect that the technological scheme that the utility model provides is brought:
1. damping ring is set on crankshaft sprocket, the carrier bar of chain is overlapped on the outer wall of damping ring, in the process of chain transmission, and the impact shock produced when damping ring can reduce chain and gear teeth meshing effectively and noise, reduce the wearing and tearing of chain and the gear teeth, extend their working life.
2. the hydraulic tensioner of the application directly can insert the cylinder cap of motor, introduces lubricant oil from cylinder cap joint.Reduce installing space.
3. what the application's structure adopted is that low resistance bearings replaces former sleeved structure, can allow structure in running, reach perfect and export.Can lubricant oil be injected in the groove of the application's structure, be delivered to the gear on meshing camshaft adjuster by oil duct.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure figure.
Fig. 2 is stretcher structure sectional view.
Fig. 3 is G portion connecting structure figure.
Fig. 4 is G portion structural representation.
Fig. 5 is G portion structure sectional view.
Embodiment
Engine timing chain rotation mechanism, comprise hydraulic tensioner 4, timing chain guide rail 5, admission cam shaft sprocket wheel 1, exhaust cam shaft sprocket wheel 2, crankshaft sprocket 7, chain guide 5 is separately positioned on crankshaft sprocket 7 and admission cam shaft sprocket wheel 1, the outside of the chain 3 between exhaust cam shaft sprocket wheel 2, chain 3 is overlapped on chain guide 5, and described hydraulic tensioner 4 is arranged on admission cam shaft sprocket wheel 1 with outside the chain guide 5 of crankshaft sprocket 2 connecting end; Described chain 3 structure comprises outer plate 31, outer plate 31 has been sticked inner plate 32, be sticked between two inner plates rolling bearing 30, be fixedly connected with by interspersed positioning bolt 33 between described outer plate 31, inner plate 32, rolling bearing 30, described rolling bearing 30 both sides offer groove, rolling bearing 30 laterally offers three road receiving grooves 34, be provided with three layers in longitudinal direction and interlayer is installed, with installing in interlayer, ball 36 is all installed at receiving groove, described stating in interlayer is separatedly equipped with groove 35, is connected with oil duct 37 mutually between the groove in each interlayer.
Crankshaft sprocket 7 is socketed with the shock ring 8 adopting rubber to make, shock ring 8 is with between crankshaft sprocket 7 being interference fit connection, the carrier bar of chain is overlapped on the outer wall of shock ring, in the process of chain transmission, the impact shock that shock ring 8 produces when effectively can reduce chain and gear teeth meshing and noise, reduce the wearing and tearing of chain and the gear teeth, extend their working life.
On the housing 41 outer surface intermediate portion of hydraulic tensioner 4, mantle fiber has outside thread 40, directly cylinder body is followed (to be engine cylinder-body by outside thread, namely in the outside of chain guide) be connected and fixed, the termination, left side of housing 41 is for exporting termination, termination is used for hydraulic tensioner to rotate to be screwed into, this termination forms rod member 42 with between outside thread 40 sections at housing cavity, rod member 42 offers oilhole 420, oilhole communicates with the active chamber 43 become in housing 41, reciprocating piston 44 is provided with in active chamber, the head of piston 44 offers for the lubricant oil aperture of ejection after throttling.Active chamber inwall is provided with limited location snap ring 45, is provided with coil tension spring 46 in piston, spring one end withstands on plunger 47 shaping in piston, and the other end withstands on base 48 shaping on active chamber bottom surface.
Claims (3)
1. engine timing chain rotation mechanism, comprise hydraulic tensioner, timing chain guide rail, admission cam shaft sprocket wheel, exhaust cam shaft sprocket wheel, crankshaft sprocket, it is characterized in that: chain guide is separately positioned on crankshaft sprocket and admission cam shaft sprocket wheel, the outside of the chain between exhaust cam shaft sprocket wheel, chain is overlapped on chain guide, and described hydraulic tensioner is arranged on admission cam shaft sprocket wheel with outside the chain guide of crankshaft sprocket connecting end; Described chain structure comprises outer plate, outer plate has been sticked inner plate, be sticked between two inner plates rolling bearing, be fixedly connected with by interspersed positioning bolt between described outer plate, inner plate, rolling bearing, described rolling bearing both sides offer groove, and rolling bearing laterally offers three road receiving grooves, be provided with three layers in longitudinal direction and interlayer is installed, all ball being installed at receiving groove with installing in interlayer, being separatedly equipped with groove in described interlayer, between the groove in each interlayer, being connected with oil duct mutually.
2. engine timing chain rotation mechanism according to claim 1, is characterized in that: described crankshaft sprocket is socketed with the shock ring adopting rubber to make.
3. engine timing chain rotation mechanism according to claim 1, it is characterized in that: on the housing outer surface intermediate portion of described hydraulic tensioner, mantle fiber has outside thread, the termination, left side of frame is for exporting termination, this termination forms rod member with between external thread section at housing cavity, rod member offers oilhole, oilhole communicates with the active chamber become in housing, reciprocating piston is provided with in active chamber, active chamber inwall is provided with limited location snap ring, coil tension spring is provided with in piston, spring one end withstands on plunger shaping in piston, the other end withstands on base shaping on active chamber bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420377466.9U CN204212822U (en) | 2014-07-09 | 2014-07-09 | Engine timing chain rotation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420377466.9U CN204212822U (en) | 2014-07-09 | 2014-07-09 | Engine timing chain rotation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204212822U true CN204212822U (en) | 2015-03-18 |
Family
ID=52981502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420377466.9U Expired - Fee Related CN204212822U (en) | 2014-07-09 | 2014-07-09 | Engine timing chain rotation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204212822U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973209A (en) * | 2017-12-21 | 2019-07-05 | 本田技研工业株式会社 | The screw tensioning apparatus tappet of internal combustion engine |
| CN112664628A (en) * | 2020-12-01 | 2021-04-16 | 机械工业第九设计研究院有限公司 | Chain tensioning control structure |
-
2014
- 2014-07-09 CN CN201420377466.9U patent/CN204212822U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973209A (en) * | 2017-12-21 | 2019-07-05 | 本田技研工业株式会社 | The screw tensioning apparatus tappet of internal combustion engine |
| CN109973209B (en) * | 2017-12-21 | 2021-11-02 | 本田技研工业株式会社 | Screw tensioner tappet for internal combustion engine |
| CN112664628A (en) * | 2020-12-01 | 2021-04-16 | 机械工业第九设计研究院有限公司 | Chain tensioning control structure |
| CN112664628B (en) * | 2020-12-01 | 2022-03-08 | 机械工业第九设计研究院股份有限公司 | Chain tensioning control structure |
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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: 20150318 Termination date: 20150709 |
|
| EXPY | Termination of patent right or utility model |