CN101706348B - Center-of-mass measuring tool of engine - Google Patents
Center-of-mass measuring tool of engine Download PDFInfo
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- CN101706348B CN101706348B CN2009102288883A CN200910228888A CN101706348B CN 101706348 B CN101706348 B CN 101706348B CN 2009102288883 A CN2009102288883 A CN 2009102288883A CN 200910228888 A CN200910228888 A CN 200910228888A CN 101706348 B CN101706348 B CN 101706348B
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- engine
- center
- measuring tool
- mass measuring
- measured
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- 238000005303 weighing Methods 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 239000000725 suspension Substances 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010205 computational analysis Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
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Abstract
The invention relates to a center-of-mass measuring tool of an engine, belonging to the technical field of measurement of the engine. The invention is characterized in that the center-of-mass measuring tool comprises a flat plate, a bracket with two rollers which are connected by a shaft, a tooling lifting hook and a weighing tensioner, wherein the bracket with two rollers is positioned on the flat plate and is used for bearing a center-of-mass machine part to be measured; and the other side of the center-of-mass machine part to be measured is provided with the tooling lifting hook which is connected with the weighing tensioner. The center-of-mass measuring tool has the advantages of having simple structure and low fault rate, saving cost, labor and measuring time, being economical and practical and having accurate measurement and easy popularization.
Description
Technical field
The invention belongs to the engine measuring technical field, particularly relate to a kind of center-of-mass measuring tool of engine.
Background technology
At present, high speed development along with China's automobile industry, the application coupling work of its critical component engine becomes more and more important, in order to make the better and car load coupling of engine, the centroid position of engine in calculating, many car load couplings all need be provided, because the Mass Center of Engines parameter is to measure the precondition of moment of inertia, is the necessary parameter of engine power model, engine dynamic analysis and the vibration isolation that suspends design thereof all there is important meaning.
The centroid position of regular object can obtain by calculating, but for resembling the complicated so random object of engine, just calculate and quite bother, and since engine most of parts are arranged is cast members, therefore also can have error with drawing in the manufacturing, adopting computing method is that not meet reality also be worthless.
Summary of the invention
The present invention provides a kind of center-of-mass measuring tool of engine for solving the technical matters that exists in the known technology.
The purpose of this invention is to provide a kind of have simple in structure, failure rate is low, save cost, economical and practical, the center-of-mass measuring tool of engine of measuring accurately and be easy to characteristics such as promoting.
The present invention is by the method that combines with computational analysis of test, and quick simple and easy and obtain the centroid position of engine accurately, this invention tool construction is simple, and is easy to operate, and the accuracy height, is suitable for very much the barycenter measurement of engine.
The technical scheme that the present invention takes for the technical matters that exists in the solution known technology is:
A kind of center-of-mass measuring tool of engine is characterized in: center-of-mass measuring tool comprises flat board, has the support of 2 rollers, has axle to link to each other between roller, the frock suspension hook and the chest expander of weighing; Rolling wheel support is positioned on the flat board, and rolling wheel support is used to support barycenter parts to be measured, and barycenter parts opposite side to be measured has the frock suspension hook, and the frock suspension hook connects adorns the chest expander of weighing.
The present invention can also adopt following technical scheme:
Described center-of-mass measuring tool of engine is characterized in: center-of-mass measuring tool comprises vertical, ruler and level meter; When the parts barycenter was measured, vertical was used to survey verticality, and ruler is used for measuring distance, and level meter is used to measure levelness.
Described center-of-mass measuring tool of engine is characterized in: dull and stereotyped is the thick steel plate of 8-20mm.
Described center-of-mass measuring tool of engine is characterized in: roller is a pulley, and two pulley rooms have the iron staff of diameter 10-40mm to link to each other.
Described center-of-mass measuring tool of engine is characterized in: chest expander is a spring balance.
Advantage and good effect that the present invention has are:
Center-of-mass measuring tool of engine is owing to adopted brand-new technology scheme of the present invention, the present invention compares with prior art, owing to used the supporting leg that has roller, this supporting leg can be by the frock supporting leg repacking of engine, thereby installing and fixing when making measurement is convenient, not only saved manpower, and saved a large amount of test periods, owing between the two-wheeled of special supporting leg, added iron staff, thereby guaranteed that two wheels are parallel to engine and in the same plane, only need to guarantee that engine is vertical with steel plate gets final product, strengthened the accuracy of this center-of-mass measuring tool.
That the present invention has is simple in structure, failure rate is low, save cost, economical and practical, measure accurately and be easy to advantage such as popularization.
Description of drawings
Fig. 1 is a directions X barycenter measurement structure synoptic diagram of the present invention;
Fig. 2 is that the directions X barycenter is measured the indicating arrangement synoptic diagram;
Fig. 3 is a Y direction barycenter measurement structure synoptic diagram;
Fig. 4 is that Y direction barycenter is measured the indicating arrangement synoptic diagram;
Fig. 5 is a Z direction barycenter measurement structure synoptic diagram;
Fig. 6 is that Z direction barycenter is measured the indicating arrangement synoptic diagram.
Among the figure, 1-frock suspension hook, the 2-spring balance, 3-connects auxiliary, 4-engine, 5-support, 6-roller, 7-steel plate.
Embodiment
For further understanding technology contents of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
A kind of center-of-mass measuring tool of engine, instrument comprise the thick steel plate of 12mm 7, and 6 on 5,2 rollers of support that have 2 rollers 6 have the iron staff of diameter 25mm to link to each other, and guarantee that two wheels are parallel to engine 4 and in the same plane.Roller 6 supports are positioned on the steel plate, and rolling wheel support 5 is used to support engine to be measured, and barycenter engine opposite side to be measured has frock suspension hook 1, and frock suspension hook 1 connects adorns weighing spring scale 2, and weighing spring scale 2 connects engine by connecting auxiliary 3.Center-of-mass measuring tool comprises vertical, ruler and level meter; When the parts barycenter was measured, vertical was used to survey verticality, and ruler is used for measuring distance, and level meter is used to measure levelness.
The measurement with the centroid position on the directions X now describes:
1. measure the actual weight W of engine, need select for use suitable spring balance to measure
2. measure auxiliary with suspension and the weight W 1 that is connected
3. guarantee iron plate cleaning surfaces drying, and be horizontal
4. special supporting leg is installed on engine, and engine is placed on the iron plate
5. by hoisting device engine one end is sling, and used supplemental measurement tools such as vertical, level meter to guarantee that the engine center axle is horizontal.
6. read reading R1 on the spring balance (this reading can not less than the engine gross mass 20%), and the center of measuring wheel to the center of actual suspend distance C 1 between the some perpendicular line and wheel to the cylinder body rear surface apart from a1.
7. result of calculation
Directions X centroid position computing method:
According to principle of moment balance, be fulcrum with the pulley center, the moment on directions X is in equilibrium state, that is:
(R1-W1)C1＝W(a1-X)
The centroid position of directions X:
The measuring method on Y direction and the Z direction and the above-mentioned measuring method of directions X are roughly the same.Thereby measure the barycenter of engine.
Claims (4)
1. center-of-mass measuring tool of engine, it is characterized in that: center-of-mass measuring tool comprises flat board, has the support of 2 rollers, has axle to link to each other between roller, the frock suspension hook and the chest expander of weighing, vertical, ruler and level meter; Rolling wheel support is positioned on the flat board, and rolling wheel support is used to support barycenter parts to be measured, and barycenter parts opposite side to be measured has the frock suspension hook, the frock suspension hook connects adorns the chest expander of weighing, and when the parts barycenter was measured, vertical was used to survey verticality, ruler is used for measuring distance, and level meter is used to measure levelness.
2. according to the described center-of-mass measuring tool of engine of claim 1, it is characterized in that: dull and stereotyped is the thick steel plate of 8-20mm.
3. according to the described center-of-mass measuring tool of engine of claim 1, it is characterized in that: roller is a pulley, and two pulley rooms have the iron staff of diameter 10-40mm to link to each other.
4. according to the described center-of-mass measuring tool of engine of claim 1, it is characterized in that: chest expander is a spring balance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102288883A CN101706348B (en) | 2009-11-30 | 2009-11-30 | Center-of-mass measuring tool of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102288883A CN101706348B (en) | 2009-11-30 | 2009-11-30 | Center-of-mass measuring tool of engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101706348A CN101706348A (en) | 2010-05-12 |
| CN101706348B true CN101706348B (en) | 2011-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102288883A Expired - Fee Related CN101706348B (en) | 2009-11-30 | 2009-11-30 | Center-of-mass measuring tool of engine |
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| Country | Link |
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| CN (1) | CN101706348B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108063343A (en) * | 2017-12-06 | 2018-05-22 | 哈尔滨工业大学 | A kind of cable automatic plug-pull device for quality center of mass measurement |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628723B (en) * | 2012-04-19 | 2015-09-02 | 江苏大学 | A kind of birds, beasts and eggs center of mass determination method |
| CN105092153B (en) * | 2014-05-13 | 2018-06-26 | 天津航天瑞莱科技有限公司 | A kind of high-precision large-sized structural parts centroid measurement system and method |
| CN106979843B (en) * | 2016-01-15 | 2019-08-27 | 中国航发常州兰翔机械有限责任公司 | A method for detecting the center of gravity of an aero-engine |
| CN108827535B (en) * | 2018-09-26 | 2021-01-01 | 长春理工大学 | Center of mass test bench |
| CN109540383A (en) * | 2018-10-30 | 2019-03-29 | 北京动力机械研究所 | Detecting tool for the detection of punching engine quality center of mass |
| CN110186618B (en) * | 2019-06-28 | 2020-11-03 | 长春理工大学 | Automobile mass center testing and positioning device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2322136Y (en) * | 1997-12-12 | 1999-06-02 | 安国建 | Motor vehicle testing platform |
-
2009
- 2009-11-30 CN CN2009102288883A patent/CN101706348B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2322136Y (en) * | 1997-12-12 | 1999-06-02 | 安国建 | Motor vehicle testing platform |
Non-Patent Citations (3)
| Title |
|---|
| 吴庆鸣等.发动机质心测量方案研究.《航空制造技术》.2003,(第11期),56-58，61. * |
| 吴斌等.大质量飞行器质心测量方法.《宇航计测技术》.2007,第27卷(第6期),28-30,33. * |
| 陈仁健等.假肢质心测定装置的研制.《中国组织工程研究与临床康复》.2008,第12卷(第4期),700-702. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108063343A (en) * | 2017-12-06 | 2018-05-22 | 哈尔滨工业大学 | A kind of cable automatic plug-pull device for quality center of mass measurement |
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| Publication number | Publication date |
|---|---|
| CN101706348A (en) | 2010-05-12 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Address after: 300402 Beichen science and Technology Park, Beichen District, high tech Avenue, No. 77, No. Patentee after: Tianjin LOVOL Engine Co. Ltd. Address before: 300402 Beichen District, Tianjin, Tianjin Road, Tianjin Patentee before: Tianjin LOVOL Engines Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20201130 |