CN115200867A - Engine and method for identifying abnormal abrasion part of engine - Google Patents
Engine and method for identifying abnormal abrasion part of engine Download PDFInfo
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- CN115200867A CN115200867A CN202110393714.3A CN202110393714A CN115200867A CN 115200867 A CN115200867 A CN 115200867A CN 202110393714 A CN202110393714 A CN 202110393714A CN 115200867 A CN115200867 A CN 115200867A
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- 230000002159 abnormal effect Effects 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005299 abrasion Methods 0.000 title claims description 7
- 239000003921 oil Substances 0.000 claims abstract description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 52
- 238000000576 coating method Methods 0.000 claims description 28
- 229910052729 chemical element Inorganic materials 0.000 claims description 24
- 239000011248 coating agent Substances 0.000 claims description 19
- 238000009498 subcoating Methods 0.000 claims description 19
- 239000010705 motor oil Substances 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 230000000155 isotopic effect Effects 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052718 tin Inorganic materials 0.000 claims 1
- 239000010721 machine oil Substances 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The invention relates to the technical field of engines, and discloses an engine and an abnormal wear part identification method of the engine. This engine carries out oil sample and draws when carrying out the engine endurance examination, through isotope element analysis, reads different isotope element's composition and content from the machine oil sample, and the friction that corresponds different positions according to different isotope element is vice, and the friction that can accurate quick locking abnormal wear is vice, conveniently maintains in advance and changes, prevents to produce major failure.
Description
Technical Field
The invention relates to the technical field of engines, in particular to an engine and an abnormal wear part identification method of the engine.
Background
Sliding bearings such as a main shaft bushing, a connecting rod bushing and a camshaft bushing are main friction pairs of the engine, and the abrasion condition of the sliding bearings directly influences the reliability and the service life of the engine. When the durability of the engine is checked, the oil sample is extracted from the oil pan regularly, and the abrasion degree of a main shaft bushing and the like of the engine is judged through element analysis, so that the overall operation condition of the engine is judged. However, because the number of the main shaft bushes of the engine is large, if the element analysis result exceeds the limit value, only abnormal conditions can be judged, specific abnormal parts are difficult to judge, the engine needs to be disassembled and inspected one by one to be identified, and real-time performance and efficiency are affected.
Disclosure of Invention
The invention provides an engine and an abnormal wear part identification method of the engine, wherein the engine can accurately and quickly lock a friction pair with abnormal wear when carrying out durability examination and verification, so that the maintenance and replacement can be conveniently carried out in advance, and major faults can be prevented.
In order to achieve the purpose, the invention provides the following technical scheme:
an engine comprises a plurality of friction pairs, wherein the surface of each friction pair is coated, and different isotope elements or different combinations of isotope elements are arranged in the coatings on different friction pairs.
In the engine provided by the embodiment of the invention, the engine comprises a plurality of friction pairs, the surface of each friction pair is coated with a coating, different isotope elements or different combinations of isotope elements are arranged in the coatings on different friction pairs, when the engine is subjected to durability examination, an oil sample is extracted from an oil pan, the components and the contents of different isotope elements are read from the oil sample of the engine oil through isotope element analysis, and according to the friction pairs corresponding to different positions by the different isotope elements, the abnormally worn friction pairs can be accurately and quickly locked through data obtained through the element analysis, so that the maintenance and the replacement can be conveniently carried out in advance, and major faults can be prevented.
Optionally, isotopes of different first chemical elements are uniformly distributed in the coating on different friction pairs.
Optionally, the coating on each friction pair includes multiple sub-coatings sequentially stacked in a thickness direction thereof, different sub-coatings in the multiple sub-coatings have isotopes of different second chemical elements, and the first chemical element and the second chemical element are different chemical elements.
Optionally, the first chemical element and the second chemical element are two of carbon element, nickel element and tin element.
Optionally, the friction pair comprises a spindle bush, a connecting rod bush and a camshaft liner.
Optionally, the friction pair comprises a plurality of main bearing shoes.
The invention also provides a method for identifying the wear part of the engine, which is applied to any one of the engines provided in the technical scheme and comprises the following steps:
extracting an engine oil sample from an oil pan of the engine according to a preset time period;
analyzing isotope elements of the engine oil sample;
judging whether the isotope elements in the engine oil sample exceed the standard or not according to the measurement value of the isotopes in the isotope element analysis and a preset target value;
and determining the abnormal abrasion position of the engine according to the isotope elements which exceed the standard and the isotope elements contained in each friction pair.
Drawings
FIG. 1 is a schematic structural diagram of a friction pair in an engine according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a friction pair in an engine according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a method for identifying a wear portion of an engine according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides an engine, including a plurality of friction pairs 1, a coating 2 covering a surface of each friction pair 1, and different isotope elements or different combinations of isotope elements in the coatings 2 on different friction pairs 1.
In the engine provided by the embodiment of the invention, the engine comprises a plurality of types of friction pairs 1, the surface of each friction pair 1 is covered with the coating 2, the coatings 2 on the different friction pairs 1 are provided with different isotope elements or combinations of the isotope elements, when the engine is subjected to durability examination, an oil sample is extracted from an oil pan, the components and the contents of the different isotope elements are read from the oil sample through isotope element analysis, and according to the friction pairs 1 corresponding to different positions by the different isotope elements, the friction pairs with abnormal wear can be accurately and quickly locked, so that the maintenance and the replacement can be conveniently carried out in advance, and the occurrence of major faults can be prevented.
In a possible embodiment, the plurality of friction pairs can be arranged to have different isotope elements, after the engine runs for a long time, the composition and content of the isotope elements are read from the engine oil, and parts with serious wear or damage are accurately identified through isotopes, so that the parts with abnormal wear can be conveniently maintained and replaced in advance and quickly locked, for example, the different friction pairs are arranged 12 C、 13 C、 14 C， 59 Ni、 60 Ni、 61 Ni、 62 Ni、 63 Ni、 64 Ni， 112 Sn、 114 Sn、 115 Sn、 116 Sn、 118 Sn、 120 Sn、 122 Sn、 124 Sn, and the like.
In one possible embodiment, the isotopes of the different first chemical elements are distributed uniformly in the coating 2 on the different friction pairs 1. Wherein, the isotope of the first chemical element in the coating 2 on different friction pairs 1 can be defined as "position isotope", and the component and content of each isotope of the first chemical element in the extracted oil sample can be analyzed to accurately judge which position of the friction pair 1 is abnormally worn.
In a possible embodiment, the coating 2 on each friction pair 1 includes a plurality of sub-coatings 2 sequentially stacked in the thickness direction thereof, different sub-coatings 2 in the plurality of sub-coatings 2 have different isotopes of a second chemical element, and the first chemical element and the second chemical element are different chemical elements. Wherein, the isotope of the second chemical element contained in different sub-coatings 2 on the same friction pair 1 can be defined as a "deep isotope", and the depth of the abnormal wear of the friction pair 1 can be determined by analyzing the composition and the content of each isotope of the second chemical element in the extracted engine oil sample. For example, as shown in fig. 2, three sub-coatings, sub-coating 21, sub-coating 22, and sub-coating 23, are included in coating 2.
In a possible embodiment, the first chemical element and the second chemical element may be two of carbon element (C), nickel element (Ni), and tin element (Sn), and may be other chemical elements, which are not limited herein and are determined according to actual selection.
In the above embodiment of the present invention, the multiple types of friction pairs may be a main shaft bushing, a connecting rod bushing, a camshaft bushing, or other friction pairs, which is not limited herein.
In the embodiment of the invention, when the durability assessment engine is manufactured specifically, isotope combinations and related coating combinations can be selected firstly, the target value of each isotope is determined, then the durability assessment main shaft bushing is manufactured, coatings with different isotopes are formed on different main shaft bushings, and finally the durability assessment engine can be assembled according to the set combinations.
An embodiment of the present invention further provides a method for identifying a wear part of an engine, which is applied to any one of the engines provided in the foregoing technical solutions, as shown in fig. 3, and includes:
s301: extracting an engine oil sample from an oil pan of the engine according to a preset time period;
s302: analyzing isotope elements of the engine oil sample;
s303: judging whether the isotope elements in the engine oil sample exceed the standard or not according to the measurement value of the isotopes in the isotope element analysis and a preset target value;
s304: and determining the abnormal abrasion position of the engine according to the isotope elements which exceed the standard and the isotope elements contained in each friction pair.
According to the method for identifying the wear part of the engine, provided by the embodiment of the invention, whether isotope elements in an engine oil sample exceed the standard or not can be judged according to the isotope measurement values in the isotope element analysis and the preset target values, and the position of an abnormal module of the engine can be determined according to the exceeding isotope elements and the corresponding isotope elements in each friction pair, so that the abnormal wear friction pair can be accurately and quickly locked, the maintenance and the replacement can be conveniently carried out in advance, and the major faults can be prevented.
In a specific embodiment, the main bearing shoes are a friction pair of the engine, and for an inline engine, the number of the main bearing shoes is 1 more than the number of cylinders of the engine, i.e. if the engine has 4 cylinders, the number of the main bearing shoes is 5. Conventional engines are often designed with identical main bearing shells, i.e. all the main bearing shells are made of the same materials and coatings, and trace elements. While embodiments of the present invention may use different isotopes for the coating of the main bearing shell at different locations. The specific application method may be, for example, a 4-cylinder engine having 5 main bearing shoes, as shown in fig. 1 and 2, each main bearing shoe has a coating formed on its surface, each coating is divided into 3 sub-coatings, and the sub-coatings may be formed by coating the main bearing shoes with a coating of a specific thickness 59 Ni、 60 Ni、 61 Ni、 62 Ni、 63 Ni、 64 Ni is defined as a positional isotope of 59 Ni、 60 Ni、 61 Ni、 62 Ni、 63 Ni、 64 Ni is respectively added into the coatings of 5 main shaft bushing positions; and can be combined with 12 C、 13 C、 14 C is defined as a deep isotope, will 12 C、 13 C、 14 C were added in the same order to 3 different subcoats of the coating on each main bearing shell. Specifically, the isotopic elements contained in the coatings in the various main bearing shoes may be as shown in table 1 below.
TABLE 1
| |
|
Main shaft bushing 3 | Main shaft bushing 4 | Main shaft bushing 5 | |
| Subcoating 1 | 12 C 59 Ni | 12 C 60 Ni | 12 C 61 Ni | 12 C 62 Ni | 12 C 63 Ni |
| Subcoating 2 | 13 C 59 Ni | 13 C 60 Ni | 13 C 61 Ni | 13 C 62 Ni | 13 C 63 Ni |
| Subcoating 3 | 14 C 59 Ni | 14 C 60 Ni | 14 C 61 Ni | 14 C 62 Ni | 14 C 63 Ni |
Table 1 above is merely one example representation. For engines with more cylinders, the arrangement of isotopes can be realized in other arrangement combinations, which is not limited herein, according to practical situations.
In the durability assessment analysis of the engine, the engine durability assessment analysis can be set 12 C， 13 C， 14 C， 59 Ni、 60 Ni、 61 Ni、 62 Ni、 63 Ni、 64 The target Ni content is 12 C Target ， 13 C Target ， 14 C Target ， 59 Ni Target 、 60 Ni Target 、 61 Ni Target 、 62 Ni Target 、 63 Ni Target 、 64 Ni Target And after the oil sample is extracted from the oil pan, the abrasion degree of the main shaft bushing of the engine is judged through element analysis. If the measured value of a certain isotope or isotopes exceeds the corresponding target value, the position of the worn main shaft bushing can be accurately judged, the wear depth of the coating of the main shaft bushing can be judged, and the worn or seriously damaged part can be accurately identified through the isotope, so that the maintenance and the replacement can be conveniently carried out in advance, and the different parts can be quickly lockedParts are often worn.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. An engine comprising a plurality of friction pairs, the surface of each friction pair being coated, the coating on different friction pairs having different isotopic elements or different combinations of isotopic elements.
2. The engine of claim 1, wherein isotopes of different first chemical elements are uniformly distributed in the coatings on different friction pairs.
3. The engine of claim 2, wherein the coating on each friction pair comprises a plurality of sub-coatings sequentially stacked in a thickness direction thereof, different sub-coatings of the plurality of sub-coatings having isotopes of a different second chemical element, the first chemical element being different from the second chemical element.
4. The engine of claim 3, wherein the first and second chemical elements are two of the elements carbon, nickel, and tin.
5. An engine according to any one of claims 1 to 4, wherein the friction pair comprises a main bearing shell, a connecting rod shell and a camshaft liner.
6. The engine of claim 5, wherein said friction pair comprises a plurality of main bearing shoes.
7. A wear portion identifying method of an engine, applied to the engine according to any one of claims 1 to 6, comprising:
extracting an engine oil sample from an oil pan of the engine according to a preset time period;
analyzing isotope elements of the engine oil sample;
judging whether the isotope elements in the engine oil sample exceed the standard or not according to the measurement value of the isotopes in the isotope element analysis and a preset target value;
and determining the abnormal abrasion position of the engine according to the isotope elements which exceed the standard and the isotope elements contained in each friction pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110393714.3A CN115200867A (en) | 2021-04-13 | 2021-04-13 | Engine and method for identifying abnormal abrasion part of engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110393714.3A CN115200867A (en) | 2021-04-13 | 2021-04-13 | Engine and method for identifying abnormal abrasion part of engine |
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| CN115200867A true CN115200867A (en) | 2022-10-18 |
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|---|---|---|---|---|
| DE10340489A1 (en) * | 2003-09-03 | 2005-03-31 | ThyssenKrupp Fördertechnik GmbH | Mineral mill bearing wear monitoring procedure uses pairs of trace element inclusions on surface layers to allow detection in lubricant |
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2021
- 2021-04-13 CN CN202110393714.3A patent/CN115200867A/en active Pending
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