CN108168497A - A kind of measuring method of engine timing angle - Google Patents
A kind of measuring method of engine timing angle Download PDFInfo
- Publication number
- CN108168497A CN108168497A CN201711458929.9A CN201711458929A CN108168497A CN 108168497 A CN108168497 A CN 108168497A CN 201711458929 A CN201711458929 A CN 201711458929A CN 108168497 A CN108168497 A CN 108168497A
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- Prior art keywords
- angle
- measuring method
- camshaft
- timing
- bent axle
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The step of a kind of measuring method of engine timing angle, belongs to automobile engine mounting technology field, the measuring method is to choose face A on the basis of cylinder head, and it is detection faces B2 that plane where choosing camshaft signal wheel, which is detection faces B1, chooses bent axle shaft end end face；The angle a between the identification point of detection faces B1 upper camshaft signal wheels and the line of camshaft centerline and datum level A is measured, measures the angle b between positioning pin and the line of crankshaft axis and the datum level A on bent axle；Compare a and i1/i2The size of b judges the correctness of timing angle, the beneficial effects of the invention are as follows, the measuring method is the face on the basis of cylinder cap surface, the mark line measured by three-coordinates measuring machine on camshaft and bent axle judges whether investigation timing angle is correct with the Relationship Comparison of the corner dimension of datum level and installation theoretical value respectively, investigation is more convenient, can be completed without starting engine.
Description
Technical field
The present invention relates to automobile engine mounting technology field more particularly to a kind of measurement sides of engine timing angle
Method.
Background technology
Correct-timing drive system is the heart of engine, ensures correct inlet and outlet door start-up time, so as to control engine
The performance of good combustion state and strength exports.Correct-timing drive system is a kind of linked system, and engine is usually on piston
On the basis of stop, arrange inlet and outlet mechanical erection angle, carry out timing driving parts exploitation design, but due to timing
The related camshaft of angle and bent axle have no idea directly to measure it all in the gentle cylinder interior of cylinder head.When starting
When machine performance generates deviation, it is desirable to whether correctly investigate analysis by timing angle, then measure cumbersome, this is to engine
The problem of investigation it is very unfavorable.
Invention content
In order to solve the above technical problem, the present invention provides a kind of measuring methods of engine timing angle, main to solve
Engine timing angle after operating of having determined is not easy to measure the problem of causing to investigate analysis difficulty, it is therefore intended that, pass through design one
The simple and fast measuring method of kind, the face on the basis of cylinder cap surface are measured by three-coordinates measuring machine on camshaft and bent axle
Mark line respectively with the angle of datum level, it is whether correct that timing angle is investigated by angle and the multilevel iudge of theoretical value,
Investigation is convenient, can be completed without starting engine.
To achieve the above object, the technical solution adopted by the present invention to solve the technical problems is：The engine timing
The measuring method of angle, which is characterized in that its step are as follows：
1) face A on the basis of selection cylinder head, plane where choosing camshaft signal wheel are detection faces B1, choose bent axle shaft end
End face is detection faces B2；
2) detection faces B is measured1Between the identification point of upper camshaft signal wheel and the line of camshaft centerline and datum level A
Angle a, measure detection faces B2On positioning pin and the line of crankshaft axis and datum level A between angle b；
3) according to camshaft and the gearratio i of bent axle1:i2, compare a and i1/i2The size of b judges timing angle
Correctness.
Further, the identification point of the camshaft signal wheel is arranged on one of gear teeth of camshaft signal wheel.
Further, the step 3) judges that the method for timing angle correctness is：If a-i1/i2·b>Theoretical value, then just
When angle it is larger；If a-i1/i2·b<Theoretical value, then timing angle is smaller；a-i1/i2B=theoretical values, then timing angle accord with
Close installation requirement.
Further, the survey tool that the step 2) measures used in angle a and angle b is three-coordinates measuring machine.
Further, the step of three-coordinates measuring machine measurement angle a and angle b is：
1) engine is placed on the workbench of three-coordinates measuring machine, makes datum level A and table vertical, control is flexible
Measurement head measures D coordinates value of the positioning pin on the identification point and bent axle of camshaft signal wheel relative to datum level A respectively；
2) microcomputer analyzes and processes the D coordinates value, calculates the value of angle a and angle b.
The beneficial effects of the invention are as follows：
The measuring method is the face on the basis of cylinder cap surface, is measured on camshaft and bent axle by three-coordinates measuring machine
Mark line respectively with the angle of datum level, pass through the size between two angles and installation theoretical value Relationship Comparison judge
Whether correct investigate timing angle, investigation is convenient and efficient, and it is accurate to measure, and can be completed without starting engine.
Description of the drawings
Label in each width attached drawing is expressed to description of the invention below content and figure is briefly described：
Fig. 1 is the structural scheme of mechanism of engine；
Fig. 2 is the structure diagram of the measuring principle of the present invention；
Label in above-mentioned figure is：1. cylinder head, 2. camshaft signal wheels, 3. bent axles, 4. positioning pins.
Specific embodiment
Below against attached drawing, by the description to optimum embodiment, the specific embodiment of the present invention is made further detailed
Thin explanation.
Specific embodiment of the present invention is：As shown in Figure 1 and Figure 2, a kind of measuring method of engine timing angle, step
It is rapid as follows：
1) face A on the basis of selection cylinder head 1, it is detection faces B to choose 2 place plane of camshaft signal wheel1, choose bent axle 3
Shaft end end face is detection faces B2；
2) detection faces B is measured1The identification point of upper camshaft signal wheel 2 and the line of camshaft centerline and datum level A it
Between angle a, measure bent axle 3 on the line of 3 center line of positioning pin 4 and bent axle and datum level A between angle b；In order to just
In the size for measuring angle a, the identification point of camshaft signal wheel 2 is arranged on one of gear teeth of camshaft signal wheel 2；For
Make measurement more accurate, the survey tool measured used in angle a and angle b is three-coordinates measuring machine, is comprised the concrete steps that：It will start
Machine is placed on the workbench of three-coordinates measuring machine, makes datum level A and table vertical, flexible measurement head is controlled to measure respectively convex
D coordinates value of the positioning pin 4 on the identification point and bent axle 3 of axis signal wheel 2 relative to datum level A is taken turns, then with microcomputer
Calculation machine analyzes and processes D coordinates value, calculates the value of angle a and angle b.
3) according to camshaft and the gearratio i of bent axle 31:i2, compare a and i1/i2The size of b judges timing angle
Correctness, that is, when judging installation, whether timing angle installs correct or engine at work, if generates slippage phenomenon, tool
The method of body is：If a-i1/i2·b>Theoretical value, then timing angle is larger；If a-i1/i2·b<Theoretical value, then timing angle compared with
It is small；a-i1/i2B=theoretical values, then timing angle meet installation requirement, for.
To sum up, the measuring method is the face on the basis of cylinder cap surface, by three-coordinates measuring machine measure camshaft and
Mark line on bent axle passes through the relationship ratio of the size between two angles and installation theoretical value respectively with the angle of datum level
Compared with judging whether investigation timing angle is correct, investigation is convenient and efficient, it is accurate to measure, and can be completed without starting engine.
The above, some principles for the present invention that only explains through diagrams, this specification are not intended to limit to the present invention
In the shown concrete structure and the scope of application, thus it is every it is possible that the corresponding modification being utilized and equivalent,
Belong to the apllied the scope of the claims of the present invention.
Claims (5)
1. a kind of measuring method of engine timing angle, which is characterized in that its step are as follows：
1) face A on the basis of selection cylinder head (1), plane where choosing camshaft signal wheel (2) are detection faces B1, choose bent axle (3)
Shaft end end face is detection faces B2；
2) detection faces B is measured1Between the identification point of upper camshaft signal wheel (2) and the line of camshaft centerline and datum level A
Angle a measures detection faces B2On positioning pin (4) and the line of bent axle (3) center line and datum level A between angle b；
3) according to camshaft and the gearratio i of bent axle (3)1:i2, compare a and (i1/i2) size of b judges timing angle
Correctness.
2. the measuring method of timing angle according to claim 1, it is characterised in that：The camshaft signal wheel (2)
Identification point is arranged on one of gear teeth of camshaft signal wheel (2).
3. the measuring method of timing angle according to claim 1, it is characterised in that：The step 3) judges timing angle
The method of correctness is：If a- (i1/i2)·b>Theoretical value, then timing angle is larger；If a- (i1/i2)·b<Theoretical value, then just
When angle it is smaller；a-(i1/i2) b=theoretical values, then timing angle meet installation requirement.
4. the measuring method of timing angle according to claim 2, it is characterised in that：The step 2) measure angle a and
Survey tool used in angle b is three-coordinates measuring machine.
5. the measuring method of the timing angle according to Claims 1 to 4 any one, it is characterised in that：Three coordinate
Measuring instrument measure angle a and angle b the step of be：
1) engine is placed on the workbench of three-coordinates measuring machine, makes datum level A and table vertical, control flexible measure
The positioning pin (4) that head is measured respectively on the identification point and bent axle (3) of camshaft signal wheel (2) is sat relative to the three-dimensional of datum level A
Scale value；
2) microcomputer analyzes and processes the D coordinates value, calculates the value of angle a and angle b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711458929.9A CN108168497B (en) | 2017-12-28 | 2017-12-28 | Method for measuring timing angle of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711458929.9A CN108168497B (en) | 2017-12-28 | 2017-12-28 | Method for measuring timing angle of engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108168497A true CN108168497A (en) | 2018-06-15 |
| CN108168497B CN108168497B (en) | 2019-12-13 |
Family
ID=62518896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711458929.9A Active CN108168497B (en) | 2017-12-28 | 2017-12-28 | Method for measuring timing angle of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108168497B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19933931A1 (en) * | 1998-07-22 | 2000-02-17 | Renault | Method for setting two parts, in particular method and device for setting an angle marking display of a crankshaft of an engine |
| CN102564384A (en) * | 2012-02-03 | 2012-07-11 | 宁波市鄞州德来特技术有限公司 | Device and method for detecting phase deviation of engine |
| CN203116680U (en) * | 2013-03-01 | 2013-08-07 | 重庆歇马机械曲轴有限公司 | Timing angle detection tool for engine crankshaft assembly |
| CN103335584A (en) * | 2013-07-24 | 2013-10-02 | 东风汽车公司 | Marker line angle detector and detecting method for drop arm parts |
| CN204240927U (en) * | 2014-11-05 | 2015-04-01 | 天津泰威齿轮有限公司 | A kind of timing marks pick-up unit |
| CN106370149A (en) * | 2016-11-16 | 2017-02-01 | 江西昌河汽车有限责任公司 | Engine correct time angle measuring device and detection method |
-
2017
- 2017-12-28 CN CN201711458929.9A patent/CN108168497B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19933931A1 (en) * | 1998-07-22 | 2000-02-17 | Renault | Method for setting two parts, in particular method and device for setting an angle marking display of a crankshaft of an engine |
| CN102564384A (en) * | 2012-02-03 | 2012-07-11 | 宁波市鄞州德来特技术有限公司 | Device and method for detecting phase deviation of engine |
| CN203116680U (en) * | 2013-03-01 | 2013-08-07 | 重庆歇马机械曲轴有限公司 | Timing angle detection tool for engine crankshaft assembly |
| CN103335584A (en) * | 2013-07-24 | 2013-10-02 | 东风汽车公司 | Marker line angle detector and detecting method for drop arm parts |
| CN204240927U (en) * | 2014-11-05 | 2015-04-01 | 天津泰威齿轮有限公司 | A kind of timing marks pick-up unit |
| CN106370149A (en) * | 2016-11-16 | 2017-02-01 | 江西昌河汽车有限责任公司 | Engine correct time angle measuring device and detection method |
Non-Patent Citations (1)
| Title |
|---|
| 殷志雄 等: "凸轮轴齿轮和曲轴齿轮正时角度检测新方法", 《中国制造业信息化》 * |
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| Publication number | Publication date |
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| CN108168497B (en) | 2019-12-13 |
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