CN108145401A - A kind of motorcycle engine timing mechanism assembly method - Google Patents
A kind of motorcycle engine timing mechanism assembly method Download PDFInfo
- Publication number
- CN108145401A CN108145401A CN201711423485.5A CN201711423485A CN108145401A CN 108145401 A CN108145401 A CN 108145401A CN 201711423485 A CN201711423485 A CN 201711423485A CN 108145401 A CN108145401 A CN 108145401A
- Authority
- CN
- China
- Prior art keywords
- cam shaft
- timing
- motorcycle engine
- exhaust cam
- mechanism assembly
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/10—Aligning parts to be fitted together
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The invention discloses a kind of motorcycle engine timing mechanism assembly methods, and described method includes following steps：1）Determine crankshaft timing position；2）Determine admission cam shaft and exhaust cam shaft timing position；3）Bent axle and the accurate positionin of admission cam shaft and exhaust cam shaft are subjected to assembling fixation.The present invention has the advantages that simple for process, easy to operate, of low cost, reduce common groove using it the various tolerances during timing and error condition occur, improve timing mechanism to positive precision, reduce assembly difficulty and very high efficiency of assembling, simultaneously, it is assembled by being accurately positioned, also reduces exhaust gas discharge.
Description
Technical field
The present invention relates to a kind of timing mechanism assembly method, particularly a kind of motorcycle engine timing mechanism assembling side
Method.
Background technology
In current motorcycle engine, inlet and outlet camshaft and the timing active of overhead double cam chain engine
Sprocket wheel is all to realize timing to top dead centre by groove mark mode again by being first pressed, since this mode easily misplaces,
Assemble it is relatively difficult and less efficient, furthermore press fitting be the interference volume that leans on ensure it is opposite slide, there are certain hidden danger.
Invention content
It is an object of the invention to provide a kind of motorcycle engine timing mechanisms that can reduce build-up tolerance and error
Assembly method.
It is realized the purpose of the present invention is technical solution in this way, a kind of motorcycle engine timing mechanism assembling side
Method, described method includes following steps：1）Determine crankshaft timing position；2）Determine admission cam shaft and exhaust cam shaft timing position
It puts；3）Bent axle and the accurate positionin of admission cam shaft and exhaust cam shaft are subjected to assembling fixation.
Wherein, in the step 1）In, it, will be with balance driven tooth mark point to just by rotating bent axle and balance driven tooth
For a line, the as timing top dead center position of bent axle at this time.
Wherein, in the step 2）In, by the admission cam shaft first equipped with location hole and exhaust cam shaft and camshaft branch
The preset location hole of frame is corresponding, in the location hole and cam for running through admission cam shaft, exhaust cam shaft simultaneously by positioning pin
The location hole of bracing strut, the at this time as timing position of admission cam shaft and exhaust cam shaft.
Wherein, in the step 3）In, in admission cam shaft and exhaust cam shaft timing position, by timing driven sprocket
It is respectively assembled on admission cam shaft and exhaust cam shaft by plain washer and fastening bolt, and passes through torsion and be fixed, it is complete
Timing into admission cam shaft, exhaust cam shaft and bent axle to assembling and is fixed.
Wherein, the torsion is 25N.M to 27N.M.
By adopting the above-described technical solution, the present invention has the advantages that simple for process, easy to operate, of low cost, adopt
Reduce common groove with it the various tolerances during timing and error condition occurs, improve timing mechanism to just
Precision reduces assembly difficulty and very high efficiency of assembling, meanwhile, it is assembled by being accurately positioned, also reduces exhaust gas row
It puts.
Description of the drawings
The description of the drawings of the present invention is as follows：
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
The specific embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings, but the present invention does not limit to
In these embodiments, any improvement or replacement on the present embodiment essence spirit still falls within the claims in the present invention and wants
Seek the range of protection.
Embodiment 1：As shown in Figure 1, a kind of motorcycle engine timing mechanism assembly method, the method includes walking as follows
Suddenly：1）Determine crankshaft timing position；2）Determine admission cam shaft and exhaust cam shaft timing position；3）By bent axle and admission cam
Axis and exhaust cam shaft accurate positionin carry out assembling fixation.
Wherein, in the step 1）In, it, will be with balancing 2 mark point of driven tooth by rotating bent axle 1 and balance driven tooth 2
To being just a line, the as timing top dead center position of bent axle 1 at this time.
Wherein, in the step 2）In, by the admission cam shaft 3 first equipped with location hole and exhaust cam shaft 4 and camshaft
5 preset location hole of stent is corresponding, in the location hole for running through admission cam shaft 3, exhaust cam shaft 4 simultaneously by positioning pin 6
With the location hole of camshaft stand 5, the at this time as timing position of admission cam shaft 3 and exhaust cam shaft 4.
Further, in the step 3）In, it is at 4 timing position of admission cam shaft 3 and exhaust cam shaft, timing is driven
Sprocket wheel 7 is respectively assembled at by plain washer and fastening bolt on admission cam shaft 3 and exhaust cam shaft 4, and is carried out by torsion
It is fixed, the timing of admission cam shaft 3, exhaust cam shaft 4 and bent axle 1 is completed to assembling and is fixed.
In the present invention, the torsion is 25N.M to 27N.M.
Claims (5)
1. a kind of motorcycle engine timing mechanism assembly method, it is characterized in that, described method includes following steps：1）Determine song
Axis timing position；2）Determine admission cam shaft and exhaust cam shaft timing position；3）Bent axle and admission cam shaft and exhaust is convex
Wheel shaft accurate positionin carries out assembling fixation.
2. motorcycle engine timing mechanism assembly method as described in claim 1, it is characterized in that：In the step 1）In,
, will be with balance driven tooth mark point to being just a line by rotating bent axle and balance driven tooth, the as timing of bent axle at this time
Top dead center position.
3. motorcycle engine timing mechanism assembly method as claimed in claim 2, it is characterized in that：In the step 2）In,
The admission cam shaft and exhaust cam shaft that are first equipped with location hole is corresponding with the preset location hole of camshaft stand, by fixed
Position pin is simultaneously through the location hole of admission cam shaft, the location hole of exhaust cam shaft and camshaft stand, and as air inlet is convex at this time
The timing position of wheel shaft and exhaust cam shaft.
4. motorcycle engine timing mechanism assembly method as claimed in claim 3, it is characterized in that：In the step 3）In,
In admission cam shaft and exhaust cam shaft timing position, timing driven sprocket is assembled respectively by plain washer and fastening bolt
On admission cam shaft and exhaust cam shaft, and pass through torsion and be fixed, complete admission cam shaft, exhaust cam shaft and bent axle
Timing to assembling and fixed.
5. motorcycle engine timing mechanism assembly method as claimed in claim 4, it is characterized in that：The torsion is 25N.M
To 27N.M.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711423485.5A CN108145401A (en) | 2017-12-25 | 2017-12-25 | A kind of motorcycle engine timing mechanism assembly method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711423485.5A CN108145401A (en) | 2017-12-25 | 2017-12-25 | A kind of motorcycle engine timing mechanism assembly method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108145401A true CN108145401A (en) | 2018-06-12 |
Family
ID=62462129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711423485.5A Pending CN108145401A (en) | 2017-12-25 | 2017-12-25 | A kind of motorcycle engine timing mechanism assembly method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108145401A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1614200A (en) * | 2004-12-03 | 2005-05-11 | 长安汽车（集团）有限责任公司 | Timing gear installing method for engjine |
| CN2775308Y (en) * | 2005-02-25 | 2006-04-26 | 南京金城机械有限公司 | Engine timing mechanism |
| CN1786427A (en) * | 2004-12-06 | 2006-06-14 | 奇瑞汽车有限公司 | Engine, its timing assembling method and its special assembling tool |
| CN102062183A (en) * | 2009-11-13 | 2011-05-18 | 中国第一汽车集团公司 | Method for performing timing assembly on V-shaped engine chain system |
| US20140283383A1 (en) * | 2013-03-22 | 2014-09-25 | Arthur Clyde Nutter | Retrofitting Performance Camshafts to an Internal Combustion Engines with Hemispherical Combustion Chambers |
| CN104249320A (en) * | 2013-06-28 | 2014-12-31 | 北京汽车动力总成有限公司 | Positioning and mounting system and positioning and mounting method used for engine timing system |
| CN104493787A (en) * | 2014-10-31 | 2015-04-08 | 重庆长安汽车股份有限公司 | Engine timing chain system assembly tool and an assembly method |
| CN107243855A (en) * | 2017-06-19 | 2017-10-13 | 江西昌河汽车有限责任公司 | Engine timing system assembly tooling and its application process |
-
2017
- 2017-12-25 CN CN201711423485.5A patent/CN108145401A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1614200A (en) * | 2004-12-03 | 2005-05-11 | 长安汽车（集团）有限责任公司 | Timing gear installing method for engjine |
| CN1786427A (en) * | 2004-12-06 | 2006-06-14 | 奇瑞汽车有限公司 | Engine, its timing assembling method and its special assembling tool |
| CN2775308Y (en) * | 2005-02-25 | 2006-04-26 | 南京金城机械有限公司 | Engine timing mechanism |
| CN102062183A (en) * | 2009-11-13 | 2011-05-18 | 中国第一汽车集团公司 | Method for performing timing assembly on V-shaped engine chain system |
| US20140283383A1 (en) * | 2013-03-22 | 2014-09-25 | Arthur Clyde Nutter | Retrofitting Performance Camshafts to an Internal Combustion Engines with Hemispherical Combustion Chambers |
| CN104249320A (en) * | 2013-06-28 | 2014-12-31 | 北京汽车动力总成有限公司 | Positioning and mounting system and positioning and mounting method used for engine timing system |
| CN104493787A (en) * | 2014-10-31 | 2015-04-08 | 重庆长安汽车股份有限公司 | Engine timing chain system assembly tool and an assembly method |
| CN107243855A (en) * | 2017-06-19 | 2017-10-13 | 江西昌河汽车有限责任公司 | Engine timing system assembly tooling and its application process |
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| 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: 20180612 |