CN101725430B - Cylinder cover standard sample piece of engine valve clearance control system - Google Patents
Cylinder cover standard sample piece of engine valve clearance control system Download PDFInfo
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- CN101725430B CN101725430B CN2009102174098A CN200910217409A CN101725430B CN 101725430 B CN101725430 B CN 101725430B CN 2009102174098 A CN2009102174098 A CN 2009102174098A CN 200910217409 A CN200910217409 A CN 200910217409A CN 101725430 B CN101725430 B CN 101725430B
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- 239000011159 matrix material Substances 0.000 claims abstract description 112
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 238000005259 measurement Methods 0.000 description 5
- 238000012856 packing Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
A cylinder cover standard sample piece of an engine valve clearance control system belongs to the detection technical field. The middle part of the upper end surface of a main matrix is successively provided with a left location pinhole matrix, a right location pinhole matrix and a keel, wherein an exhaust side belt pulley shaft neck hole matrix and an exhaust side locating plate, and an air inlet side belt pulley shaft neck hole matrix and an air inlet side locating block are separately arranged on the two sides of the left location pinhole matrix, the periphery of the upper end surface of the main matrix are provided with an exhaust side positioning table No. 1, an exhaust side positioning table No. 2, an air inlet side positioning table No. 1, and air inlet side positioning table No. 2 in turn, all air inlet side components and exhaust side components are successively arranged on the two sides of the keel and fixedly arranged on the plane of the main matrix, and the lower end surface of the main matrix is provided with a bottom surface positioning body No. 1, a bottom surface positioning body No. 2, a bottom surface positioning body No. 3 and a bottom surface positioning body No. 4. The invention has the advantages that the prepared cylinder cover standard sample has high precision, light weight, wear resistance and long-term stable sample piece critical dimension, and is convenient to fetch.
Description
Technical field
The invention belongs to the detection technique field, relate generally to a kind of cylinder cover standard sample piece of engine valve clearance control system.
Background technique
During motor car engine work, metal partss such as the interior inlet and outlet door of motor are subjected to the influence of heat in the firing chamber and produce thermal expansion, if when engine cold state, do not have the gap between valve and the driving component or the gap is too small, then valve and driving component expanded by heating will cause that valve-closing is not tight when motor is hot, cause motor in compression and working stroke gas leakage, engine power is descended, when serious even be difficult for starting or the damage component; On the contrary, if the valve clearance is excessive, then can cause valve fully not open, intake and exhaust are not thorough, and engine power is descended.For guaranteeing that motor can run well, need to reserve suitable valve clearance.
In the assembly technology of motor, in order to ensure suitable valve clearance, the valve pad or the tappet of the different-thickness of can packing into, the valve clearance controlling mechanism of also can packing into.In the assembly process of motor, when packing the valve pad of different-thickness or tappet into, actual size with clearance gauge or measuring appliance plug valve clearance, valve clearance, selecting suitable valve pad or tappet to be assembled to motor then gets on, this process may need repeated multiple times, can expend a large amount of labour forces and time, this method is worn away by accessory objectively, the operator uses the influence of factors such as the experience of clearance gauge and method, be difficult to guarantee the technological requirement of each valve clearance, efficiency is low, measuring accuracy is not high, is difficult to satisfy the assembling of multi-cylinder motor car engine fast, requirement accurately.Valve clearance control system, be needs at motor car engine valve clearance control in assembly process, the precision checking equipment that independent research is come out, purpose are exactly to improve the labour productivity of motor car engine in assembly process, the measuring accuracy of raising valve clearance.
In automobile engine cylinder head assembly assembly process, what valve clearance control system adopted is the relative measurement principle, be about to sensor to the measured value of workpiece with the measured value of cylinder cover standard sample piece is made comparisons calculate after, draw the measured value of workpiece for measurement.Cylinder cover standard sample piece is compared with cylinder cap to be measured, and cylinder cover standard sample piece comprises the feature whole to be measured of cylinder cap, and through accurate measurement, as the comparison benchmark of measuring workpieces.
The structural design of cylinder cover standard sample piece faces following problem: exemplar will be moved to take measuring system school zero by the operator before the beginning surveying work, puts back to then, and it is light to require exemplar to take, but will comprise the feature whole to be measured of cylinder cap; Exemplar is placed on the production scene and uses, require wear-resistant, exemplar critical size long-term stability.
Summary of the invention
The purpose of this invention is to provide a kind of light, convenient cylinder cover standard sample piece that uses, guarantees the engine valve clearance control system of measuring accuracy.
The parameter of cylinder cover standard sample piece comprises:
1. the diameter of two positioning pin holes;
2. the centre distance of two positioning pin holes;
3. intake cam axle journal axially bored line is to the distance (both should be parallel) of the line at two positioning pin hole centers;
4. exhaust cam axle journal axially bored line is to the distance (both should be parallel) of the line at two positioning pin hole centers;
The angle of 5. air inlet side;
6. the angle of exhaust side;
7. center, intake cam axle journal hole is to the perpendicular distance of air inlet side valve central point;
8. center, exhaust cam axle journal hole is to the perpendicular distance of exhaust side valve central point.
These all are the key parameters of cylinder cover standard sample piece, and the error of introducing in design, processing, assembling, the verification process is with direct drawing-in system error.
The object of the present invention is achieved like this:
A kind of cylinder cover standard sample piece of engine valve clearance control system, right positioning pin hole matrix is fixed in right side, main matrix upper-end surface by locating column, left side positioning pin hole matrix is fixed in left side, main matrix upper-end surface, exhaust side belt pulley axle journal hole matrix is positioned at left positioning pin hole matrix side, the equipped adjustable exhaust side positioning plate of thickness between left positioning pin hole matrix and exhaust side belt pulley axle journal hole matrix, air inlet side belt pulley axle journal hole matrix is positioned at left positioning pin hole matrix side, the equipped adjustable air inlet side positioning block of thickness between air inlet side belt pulley axis hole matrix and left positioning pin hole matrix, keel are positioned at the middle part of main matrix, and the bi-side of keel are parallel with the line of centres of right positioning pin hole matrix with left positioning pin hole matrix; No. 1 positioning table of exhaust side, No. 2 positioning tables of exhaust side, No. 1 positioning table of air inlet side, No. 2 positioning tables of air inlet side are positioned at the periphery of main matrix upper-end surface, and left positioning pin hole matrix, No. 1 positioning table of exhaust side, No. 2 positioning tables of exhaust side, right positioning pin hole matrix, No. 1 positioning table of air inlet side, No. 2 positioning table upper-end surfaces of air inlet side flush; No. 1 positioning body in bottom surface, No. 4 positioning bodies in bottom surface are installed in the two end part, bottom surface of main matrix, and guarantee that No. 1 positioning body in bottom surface, No. 4 positioning body lower planes in bottom surface flush and be parallel to the last plane of main matrix, No. 2 positioning bodies in bottom surface, No. 3 positioning bodies in bottom surface are installed in the bottom surface of main matrix and are positioned at No. 1 positioning body in bottom surface, No. 4 positioning body inboards, bottom surface, and No. 2 positioning bodies in bottom surface, No. 3 positioning body lower planes in bottom surface are higher than No. 1 positioning body in bottom surface, No. 4 positioning body lower planes in bottom surface; Left side handle, right side handle are installed in the left and right end of main matrix respectively; No. 1 valve italic of exhaust side, No. 1 journal hole matrix of exhaust side, No. 2 valve italics of exhaust side, No. 1 positioning strip of exhaust side constitutes first group of exhaust side, wherein, No. 1 positioning strip of exhaust side is positioned at No. 1 valve italic of exhaust side, No. 1 journal hole matrix of exhaust side, No. 2 valve italics of exhaust side outside and by the jackscrew on No. 1 positioning strip of exhaust side with No. 1 valve italic of exhaust side, No. 1 journal hole matrix of exhaust side, No. 2 valve italics of exhaust side locking and positioning, second group of exhaust side, the 3rd group of exhaust side, the 4th group of exhaust side is identical with first group of structure of exhaust side, and is installed on the main matrix on the plane near keel one side successively; No. 2 valve italics of air inlet side, No. 1 journal hole matrix of air inlet side, No. 1 valve italic of air inlet side, No. 1 positioning strip of air inlet side constitutes first group of air inlet side, wherein, No. 1 positioning strip of air inlet side is positioned at No. 2 valve italics of air inlet side, No. 1 journal hole matrix of air inlet side, No. 1 valve italic of air inlet side outside and by the jackscrew on No. 1 positioning strip of air inlet side with No. 2 valve italics of air inlet side, No. 1 journal hole matrix of air inlet side, No. 1 valve italic of air inlet side locking and positioning, second group of air inlet side, the 3rd group of air inlet side, the 4th group of air inlet side is identical with first group of structure of air inlet side, and is installed on the main matrix on the plane near the keel another side successively.
The invention has the advantages that, the cylinder cover standard sample piece precision height of made, whole light, the convenience of taking, wear-resistant, exemplar critical size long-term stability.
Description of drawings
Fig. 1 is an engine cylinder cover valve clearance schematic representation
Fig. 2 is the cylinder cover standard sample piece plan view
Fig. 3 is the plan view of Fig. 2
Fig. 4 is the left view of Fig. 2
Fig. 5 is the C-C sectional view of Fig. 2
Fig. 6 is the A-A sectional view of Fig. 3
Piece number explanation among the figure:
1, left side positioning pin hole matrix, 2, the exhaust side positioning plate, 3, left side handle, 4, exhaust side belt pulley axle journal hole matrix, 5, No. 1 valve italic of exhaust side, 6, No. 1 journal hole matrix of exhaust side, 7, No. 1 positioning strip of exhaust side, 8, No. 2 valve italics of exhaust side, 9, No. 1 positioning table of exhaust side, 10, No. 2 positioning tables of exhaust side, 11, keel, 12, right positioning pin hole matrix, 13, the right side handle, 14, main matrix, 15, No. 1 positioning table of air inlet side, 16, No. 2 positioning tables of air inlet side, 17, No. 2 valve italics of air inlet side, 18, No. 1 positioning strip of air inlet side, 19, No. 1 journal hole matrix of air inlet side, 20, No. 1 valve italic of air inlet side, 21, air inlet side positioning block, 22, air inlet side belt pulley axle journal hole matrix, 23, No. 1 positioning body in bottom surface, 24, No. 2 positioning bodies in bottom surface, 25, No. 3 positioning bodies in bottom surface, 26, No. 4 positioning bodies in bottom surface, 27, locating column, 28, first group of exhaust side, 29, second group of exhaust side, 30, the 3rd group of exhaust side, 31, the 4th group of exhaust side, 32, first group of air inlet side, 33, second group of air inlet side, 34, the 3rd group of air inlet side, 35, the 4th group of air inlet side.
Embodiment:
Below in conjunction with accompanying drawing embodiment of the present invention is elaborated.
The valve clearance is meant the distance between camshaft basic circle and the valve tappet, or is referred to as the gap, and shown in Figure of description 1, wherein, C (E) is an emission valve clearance, and C (I) is the intake valve gap.
A kind of cylinder cover standard sample piece of engine valve clearance control system, right positioning pin hole matrix 12 is fixed in right side, main matrix 14 upper-end surface by locating column 27, left side positioning pin hole matrix 1 is fixed in left side, main matrix 14 upper-end surfaces, exhaust side belt pulley axle journal hole matrix 4 is positioned at left positioning pin hole matrix 1 side, the equipped adjustable exhaust side positioning plate 2 of thickness between left positioning pin hole matrix 1 and exhaust side belt pulley axle journal hole matrix 4, guarantee that by the thickness of adjusting exhaust side positioning plate 2 exhaust side belt pulley axle journal hole matrix 4 centerline holes are parallel to left positioning pin hole matrix 1 with right positioning pin hole matrix 12 lines of centres and keep at a distance, air inlet side belt pulley axle journal hole matrix 22 is positioned at left positioning pin hole matrix 1 side, the equipped adjustable air inlet side positioning block 21 of thickness between air inlet side belt pulley axis hole matrix 22 and left positioning pin hole matrix 1, guarantee that by the thickness of adjusting air inlet side positioning block 21 air inlet side belt pulley axis hole matrix 22 centerline holes are parallel to left positioning pin hole matrix 1 with right positioning pin hole matrix 12 lines of centres and keep at a distance, keel 11 are positioned at the middle part of main matrix 14, and the bi-side of keel 11 are parallel with the line of centres of right positioning pin hole matrix 12 with left positioning pin hole matrix 1; No. 1 positioning table 9 of exhaust side, No. 2 positioning tables 10 of exhaust side, No. 1 positioning table 15 of air inlet side, No. 2 positioning tables 16 of air inlet side are positioned at the periphery of main matrix 14 upper-end surfaces, and left positioning pin hole matrix 1, No. 1 positioning table 9 of exhaust side, No. 2 positioning tables 10 of exhaust side, right positioning pin hole matrix 12, No. 1 positioning table 15 of air inlet side, No. 2 positioning table 16 upper-end surfaces of air inlet side flush; No. 1 positioning body 23 in bottom surface, No. 4 positioning bodies 26 in bottom surface are installed in the two end part, bottom surface of main matrix 14, and guarantee that No. 1 positioning body 23 in bottom surface, No. 4 positioning body 26 lower planes in bottom surface flush and be parallel to the last plane of main matrix 14, No. 2 positioning bodies 24 in bottom surface, No. 3 positioning bodies 25 in bottom surface are installed in the bottom surface of main matrix 14 and are positioned at No. 1 positioning body 23 in bottom surface, No. 4 positioning body 26 inboards, bottom surface, and No. 2 positioning bodies 24 in bottom surface, No. 3 positioning body 25 lower planes in bottom surface are higher than No. 1 positioning body 23 in bottom surface, No. 4 positioning body 26 lower planes in bottom surface; Left side handle 3, right side handle 13 are installed in the left and right end of main matrix 14 respectively; No. 1 valve italic 5 of exhaust side, No. 1 journal hole matrix 6 of exhaust side, No. 2 valve italics 8 of exhaust side, No. 1 positioning strip of exhaust side 7 constitutes first group 28 of exhaust side, wherein, No. 1 positioning strip 7 of exhaust side is positioned at No. 1 valve italic 5 of exhaust side, No. 1 journal hole matrix 6 of exhaust side, No. 2 valve italic 8 outsides of exhaust side and by the jackscrew on No. 1 positioning strip 7 of exhaust side with No. 1 valve italic 5 of exhaust side, No. 1 journal hole matrix 6 of exhaust side, No. 2 valve italic 8 locking and positioning of exhaust side, second group 29 of exhaust side, the 3rd group 30 of exhaust side, the 4th group 31 of exhaust side is identical with first group of 28 structure of exhaust side, and is installed on the main matrix 14 on the plane near keel 11 1 sides successively; No. 2 valve italics 17 of air inlet side, No. 1 journal hole matrix 19 of air inlet side, No. 1 valve italic 20 of air inlet side, No. 1 positioning strip of air inlet side 18 constitutes first group 32 of air inlet side, wherein, No. 1 positioning strip 18 of air inlet side is positioned at No. 2 valve italics 17 of air inlet side, No. 1 journal hole matrix 19 of air inlet side, No. 1 valve italic 20 outsides of air inlet side and by the jackscrew on No. 1 positioning strip 18 of air inlet side with No. 2 valve italics 17 of air inlet side, No. 1 journal hole matrix 19 of air inlet side, No. 1 valve italic 20 locking and positioning of air inlet side, second group 33 of air inlet side, the 3rd group 34 of air inlet side, the 4th group 35 of air inlet side is identical with first group of 32 structure of air inlet side, and is installed on the main matrix 14 on the plane near keel 11 another sides successively.
When in the motor car engine assembly process, using engine valve clearance control system, before measuring first, need to use cylinder cover standard sample piece that system is carried out school zero.When the system school is zero, cylinder cover standard sample piece is moved up on the measuring table of system and locate, system uses cylinder cover standard sample piece that all sensors are carried out school zero, and the value of Computer Assisted Measurement System collection this moment and record all the sensors is as the initial value of system mode; Measure cylinder cap then, when measuring cylinder cap, the displacement amount of all the sensors is gathered and write down to Computer Assisted Measurement System, make comparisons with the initial value of system mode and calculate after provide the valve pad or the valve tappet one-tenth-value thickness 1/10 of apolegamy, operator select valve pad or valve tappet according to valve pad that provides or valve tappet one-tenth-value thickness 1/10, be loaded in the valve seat, make the valve clearance satisfy the control requirement of engine valve clearance.
Claims (1)
1. the cylinder cover standard sample piece of an engine valve clearance control system, it is characterized in that: right positioning pin hole matrix (12) is fixed in main matrix (14) right side, upper-end surface by locating column (27), left side positioning pin hole matrix (1) is fixed in left side, main matrix (14) upper-end surface, exhaust side belt pulley axle journal hole matrix (4) is positioned at left positioning pin hole matrix (1) side, the equipped adjustable exhaust side positioning plate (2) of thickness between left positioning pin hole matrix (1) and exhaust side belt pulley axle journal hole matrix (4), air inlet side belt pulley axle journal hole matrix (22) is positioned at left positioning pin hole matrix (1) side, the equipped adjustable air inlet side positioning block (21) of thickness between air inlet side belt pulley axle journal hole matrix (22) and left positioning pin hole matrix (1), keel (11) are positioned at the middle part of main matrix (14), and the bi-side of keel (11) are parallel with the line of centres of right positioning pin hole matrix (12) with left positioning pin hole matrix (1); No. 1 positioning table of exhaust side (9), No. 2 positioning tables of exhaust side (10), No. 1 positioning table of air inlet side (15), No. 2 positioning tables of air inlet side (16) are positioned at the periphery of main matrix (14) upper-end surface, and left positioning pin hole matrix (1), No. 1 positioning table of exhaust side (9), No. 2 positioning tables of exhaust side (10), right positioning pin hole matrix (12), No. 1 positioning table of air inlet side (15), No. 2 positioning tables of air inlet side (16) upper-end surface flush; No. 1 positioning body in bottom surface (23), No. 4 positioning bodies in bottom surface (26) are installed in the two end part, bottom surface of main matrix (14), and assurance No. 1 positioning body in bottom surface (23), No. 4 positioning bodies in bottom surface (26) lower plane flushes and is parallel to the last plane of main matrix (14), No. 2 positioning bodies in bottom surface (24), No. 3 positioning bodies in bottom surface (25) are installed in the bottom surface of main matrix (14) and are positioned at No. 1 positioning body in bottom surface (23), No. 4 positioning bodies in bottom surface (26) inboard, and No. 2 positioning bodies in bottom surface (24), No. 3 positioning bodies in bottom surface (25) lower plane is higher than No. 1 positioning body in bottom surface (23), No. 4 positioning bodies in bottom surface (26) lower plane; Left side handle (3), right side handle (13) are installed in the left and right end of main matrix (14) respectively; No. 1 valve italic of exhaust side (5), No. 1 journal hole matrix of exhaust side (6), No. 2 valve italics of exhaust side (8), No. 1 positioning strip of exhaust side (7) constitutes first group of exhaust side (28), wherein, No. 1 positioning strip of exhaust side (7) is positioned at No. 1 valve italic of exhaust side (5), No. 1 journal hole matrix of exhaust side (6), No. 2 valve italics of exhaust side (8) outsides and by the jackscrew on No. 1 positioning strip of exhaust side (7) with No. 1 valve italic of exhaust side (5), No. 1 journal hole matrix of exhaust side (6), No. 2 valve italics of exhaust side (8) locking and positioning, second group of exhaust side (29), the 3rd group of exhaust side (30), first group of (28) structure in the 4th group of (31) and exhaust side of exhaust side is identical, and is installed on the last plane of main matrix (14) near keel (11) one sides successively; No. 2 valve italics of air inlet side (17), No. 1 journal hole matrix of air inlet side (19), No. 1 valve italic of air inlet side (20), No. 1 positioning strip of air inlet side (18) constitutes first group of side of air inlet (32), wherein, No. 1 positioning strip of air inlet side (18) is positioned at No. 2 valve italics of air inlet side (17), No. 1 journal hole matrix of air inlet side (19), No. 1 valve italic of air inlet side (20) outside and by the jackscrew on No. 1 positioning strip of air inlet side (18) with No. 2 valve italics of air inlet side (17), No. 1 journal hole matrix of air inlet side (19), No. 1 valve italic of air inlet side (20) locking and positioning, second group of air inlet side (33), the 3rd group of air inlet side (34), first group of (32) structure in the 4th group of (35) and air inlet side of air inlet side is identical, and is installed on the last plane of main matrix (14) near keel (11) another side successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102174098A CN101725430B (en) | 2009-12-24 | 2009-12-24 | Cylinder cover standard sample piece of engine valve clearance control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102174098A CN101725430B (en) | 2009-12-24 | 2009-12-24 | Cylinder cover standard sample piece of engine valve clearance control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101725430A CN101725430A (en) | 2010-06-09 |
| CN101725430B true CN101725430B (en) | 2011-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102174098A Expired - Fee Related CN101725430B (en) | 2009-12-24 | 2009-12-24 | Cylinder cover standard sample piece of engine valve clearance control system |
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| CN112621124B (en) * | 2020-12-11 | 2022-05-03 | 一汽解放大连柴油机有限公司 | Method for taking out valve seat ring of cylinder cover of diesel engine |
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Address after: 150069 Heilongjiang city of Harbin province Harbin Development Zone haping Road District Wenzhou Road No. 9-1 Patentee after: HARBIN HIGHTECH PRECISION GAGE Co.,Ltd. Address before: 150060 Heilongjiang city of Harbin province Harbin Development Zone haping Road District No. 18 North Road in Yantai Patentee before: HARBIN HIGHTECH PRECISION GAGE Co.,Ltd. |
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Granted publication date: 20111026 Termination date: 20211224 |