CN108168887B - A kind of test method investigated grinding process parameters and gear engagement fatigue life is influenced - Google Patents
A kind of test method investigated grinding process parameters and gear engagement fatigue life is influenced Download PDFInfo
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- CN108168887B CN108168887B CN201711455570.XA CN201711455570A CN108168887B CN 108168887 B CN108168887 B CN 108168887B CN 201711455570 A CN201711455570 A CN 201711455570A CN 108168887 B CN108168887 B CN 108168887B
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000010998 test method Methods 0.000 title claims abstract description 9
- 238000000227 grinding Methods 0.000 title claims description 23
- 238000012360 testing method Methods 0.000 claims abstract description 31
- 238000012545 processing Methods 0.000 claims abstract description 16
- 238000013461 design Methods 0.000 claims abstract description 5
- 238000011161 development Methods 0.000 claims abstract description 5
- 238000002474 experimental method Methods 0.000 claims abstract description 3
- 244000309464 bull Species 0.000 claims description 11
- 238000004458 analytical method Methods 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000011835 investigation Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000009661 fatigue test Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
- G01M13/045—Acoustic or vibration analysis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention is a kind of test method that investigation fabrication process parameters influence gear engagement fatigue life, comprising: 1. design experiment Basic parameters of gear；2. determining the combination of process parameters of large and small wheel processing respectively；3. being grouped respectively to the large and small wheel gear teeth, and processed according to fixed machined parameters, obtains a pair of of gear exemplar；4. adjustment completes the process on test-bed a pair of of gear simultaneously carries out the engagement test of gear fatigue, tooth failure development process is recorded every one section of set time；5. analyzing tooth failure data, the mean value in each group gear teeth service life is calculated, judges influence direction and size of each group machined parameters combination to gear engagement fatigue life, and filters out several group machined parameters combination optimal to extension gear engagement fatigue life.The present invention can greatly reduce the quantity of tests exemplar, shorten the test period, reduce economic cost and time cost, avoid the error that respectively adjustment introduces during multipair Gear Processing and test, be conducive to improve test accuracy.
Description
Technical field
The invention belongs to high performance and long service life gear drive fields, and in particular to a kind of investigation grinding process parameters are to engagement
The test method that fatigue life influences.
Background technique
Gear is aviation, ship, actuated element indispensable in precision machinery.Current manufacturing industry upgrading, equipment mention
More stringent requirements are proposed to various mechanical structure systems for the overall situation of effect, gear transmission structure bearing capacity therein, fatigue
Reliability just seems even more important.And in today of gear geometry designs and analytical technology maturation, gear working method and technique
Parameter optimization just becomes extension gear fatigue life, improves the effective means of its fatigue reliability.
In order to really assess influence of the different process combination to the gear engagement service life, most effective believable method is to carry out not
The engagement fatigue test of same parameter processing gear.Preparation of the existing general gear engagement fatigue test method in test gear
In, whole gear teeth of single test gear are all processed using same set of machined parameters.Only by taking grinding process as an example, it is assumed that
The combination of p group bull wheel grinding parameter and the combination of q group steamboat grinding parameter are investigated, corresponding every group of grinding parameter processes a full teeth
Wheel need to process p × q and match loading fatigue test to gear to complete the big steamboat engagement of different grinding parameter groupings.This scheme
Although the steamboat that can more accurately obtain specific grinding parameter processing and the influence after bull wheel mating engagement, sample size is excessive,
Test period is long.
Summary of the invention
It is an object of the invention to: under the premise of meeting test result information content and test accuracy target, the present invention is mentioned
A kind of simplify is gone out and has quickly investigated the test method that grinding process parameters influence gear engagement fatigue life, has been ground for multiple groups
Technological parameter carries out gear and engages comparative test for fatigue life.
The invention proposes the test method that a kind of investigation grinding process parameters influence gear engagement fatigue life, packets
It includes:
Step S1: design experiment Basic parameters of gear, including big tooth number z2, small tooth number z1, modulus m, pressure angle α,
Helixangleβ etc.；
Step S2: the combination of process parameters of large and small wheel processing is determined respectively, and clearly needs the bull wheel machined parameters investigated
Number of combinations p and steamboat machined parameters number of combinations q；
Step S3: being divided into p group and q group for the gear teeth on bull wheel and steamboat respectively, joins according to the processing determined in step S2
Number is processed, so that machined parameters are grouped and different from according to the different gear teeth.A pair of of gear exemplar is finally obtained, they
The gear teeth distinguished by group there is same macroscopical geometry and different microscopic appearances；
Step S4: carrying out adjustment for a pair of of the gear completed the process in step S3, and gear fatigue is carried out on test-bed
Engagement test.It is shut down every one section of set time and observation of taking pictures is carried out to whole flank of tooth, to find flank engagement failure in time simultaneously
Record failure development process；The gear teeth number of record failure, the gear teeth grouping where it and out-of-service time.Until each group occurs
Fail the gear teeth, stops test；
Step S5: analysis tooth failure data calculate the mean value in each group gear teeth service life, it can be determined that each group machined parameters group
The influence direction to gear engagement fatigue life and size are closed, and filters out several groups optimal to extension gear engagement fatigue life
Machined parameters combination.
Further, in above-mentioned steps S3, every group of gear teeth number is no less than 2 teeth when being grouped to the gear teeth, to protect
Confirmatory test data acquire enough information content.
Further, during the test of above-mentioned steps S4, can the big steamboat of subsidiary nearby vibration signal, monitor gear
Tired state of development in engagement.
Beneficial effects of the present invention:
(1) the present invention provides a kind of method, and multiple groups machined parameters are applied in the multiple groups gear teeth processing of the same gear,
And fatigue engagement test is carried out to single pair gear, for investigating influence of the different machining parameters to gear engagement fatigue behaviour.With
Conventional gears engagement test process is compared, and method provided by the invention can greatly reduce the quantity of tests exemplar, and can be significantly
Shorten the test period, reduces economic cost and time cost.
(2) method provided by the invention only to need a pair of of gear during processing and test.For each on gear
For the gear teeth of the group using different machining parameters processing, trueness error caused by adjustment is consistent during processing and test, avoids
The error that respectively adjustment introduces during multipair Gear Processing and test is conducive to improve test accuracy.
Detailed description of the invention
Fig. 1 is test method flow chart of the invention；
Fig. 2 is grinding test parameter grouping Processing scheme.
Specific embodiment
It elaborates with reference to the accompanying drawing to the embodiment of the method for the present invention.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here institute
Limitation.It is to be able to thoroughly understand the disclosure on the contrary, providing embodiment, and can be complete by the scope of the present disclosure
It is communicated to those skilled in the art.It should be noted that in the absence of conflict, embodiment and embodiment in the present invention
In feature can be combined with each other.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
The embodiment of the present invention investigates different technological parameter groups using the grinding process parameters of a pair of of spiral bevel gear as object
Close the influence that fatigue life is engaged to it.The grinding process parameters of investigation include grinding linear velocity, transform into two factors of speed.It is real
Apply example the following steps are included:
Step (1): design gear basic parameter, such as table 1.
1 embodiment gear parameter of table
Step (2): in view of the number of teeth of bull wheel and steamboat, steamboat is ground linear velocity, speed is transformed into and is set to two water respectively
It is flat, such as table 2；By the grinding linear velocity of bull wheel, transform into speed be set to respectively three level, such as table 3.The steamboat then to be investigated processing ginseng
Array conjunction has 4 groups, and the combination of bull wheel machined parameters has 9 groups.
2 steamboat cutting parameter testing program of table
3 bull wheel cutting parameter of table is grouped scheme
Step (3): being divided into 4 groups and 9 groups for the gear teeth on steamboat and bull wheel, and respectively according to gear teeth group number in table 2 and table 3
The grinding process parameters of distribution combine, and are processed on a pair of of gear blank, such as Fig. 2.
Step (4): it will process in obtained a pair of of gear normal mounting to engagement testing stand and carry out fatigue test.Every 2 is small
When shut down the observation flank of tooth and tooth root situation and photograph to record, while recording gear revolution when shutdown.
Step (5): due in this example steamboat failure occur earlier, to steamboat flank engagement failure logging (record) data into
It goes and handles, calculate the average burn-out life of each group gear teeth, difference is ground linear velocities, transforms into velocity composition pair during contrast process
Steamboat engages the influence of fatigue failure life, such as table 4.
Each tooth burn-out life statistical data of 4 steamboat of table
By statistical result it can be seen that for combining each group gear teeth processed, service life using different grinding parameters
It is descending to be arranged as L1 > L4 > L2 > L3.It can be found that transforming into lesser two groups of gear teeth (the L1 and L4) longest-lived of speed；Grinding
Linear velocity is lower, transforming into speed, biggish one group of (L3) service life is minimum.Conclusion obtains higher grinding linear velocity, lower transforms into
Speed can play facilitation to gear teeth meshing fatigue behaviour, be used as much as possible the conclusion that the 1st group of machined parameters are processed.
To sum up, by the above process, it can realize that multiple groups machined parameters combine in the engagement fatigue test of a pair of of gear
The assessment influenced on gear engagement fatigue life.The present invention is to investigate gear multiple groups working process parameter to the gear teeth meshing tired longevity
The influence of life provides a kind of quick, saving, high-precision test method.
Non-elaborated part of the present invention belongs to techniques well known.All shapes using equivalent transformation or equivalent replacement
At technical solution, all fall within rights protection scope of the present invention.
Claims (3)
1. a kind of test method investigating grinding process parameters and being influenced on gear engagement fatigue life, it is characterised in that: this method
Include the following steps:
Step S1: design experiment Basic parameters of gear, including big tooth number z2, small tooth number z1, modulus m, pressure angle α, spiral
Angle beta；
Step S2: determining the combination of process parameters of large and small wheel processing respectively, and clearly needs the bull wheel machined parameters combination investigated
Number p and steamboat machined parameters number of combinations q；
Step S3: being divided into p group and q group for the gear teeth on bull wheel and steamboat respectively, according in step S2 determine machined parameters into
Row processing finally obtains a pair of of gear exemplar, their wheel so that machined parameters are grouped and different from according to the different gear teeth
Tooth is distinguished by group has same macroscopical geometry and different microscopic appearances；
Step S4: a pair of of the gear completed the process in step S3 is subjected to adjustment, the engagement of gear fatigue is carried out on test-bed
Test shuts down every one section of set time and carries out observation of taking pictures to whole flank of tooth, to find that flank engagement fails and records in time
Failure development process records the gear teeth number of failure, the gear teeth grouping where it and out-of-service time, until each group fails
The gear teeth stop test；
Step S5: analysis tooth failure data calculate the mean value in each group gear teeth service life, it can be determined that the combination pair of each group machined parameters
Gear engages influence direction and the size of fatigue life, and filters out several group processing optimal to extension gear engagement fatigue life
Parameter combination.
2. a kind of test side for investigating grinding process parameters and being influenced on gear engagement fatigue life according to claim 1
Method, it is characterised in that: in the step S3, every group of gear teeth number is no less than 2 teeth when being grouped to the gear teeth, to guarantee to try
It tests data and acquires enough information content.
3. a kind of test side for investigating grinding process parameters and being influenced on gear engagement fatigue life according to claim 1
Method, it is characterised in that: during the test of the step S4, can the big steamboat of subsidiary nearby vibration signal, monitoring gear nibble
Tired state of development in conjunction.
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| CN108168887B true CN108168887B (en) | 2019-07-02 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108533717B (en) * | 2018-06-29 | 2019-11-08 | 重庆齿轮箱有限责任公司 | A method of making double set gear teeth on Same Part |
| CN114216674B (en) * | 2021-09-29 | 2024-06-14 | 中国航发湖南动力机械研究所 | Gear fatigue test piece and manufacturing method thereof |
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| CN104048825A (en) * | 2014-05-28 | 2014-09-17 | 北京航空航天大学 | Multi-sensor fusion type fault locating method for gearbox of wind turbine generator |
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| CN106959211A (en) * | 2017-03-15 | 2017-07-18 | 清华大学 | The fatigue test device and its method of testing of a kind of gear engagement |
| CN107003207A (en) * | 2015-03-13 | 2017-08-01 | 宝马股份公司 | Method and apparatus for testing gears |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070058854A1 (en) * | 2005-09-14 | 2007-03-15 | Caskey Gregory T | Gear pattern inspection system |
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| CN104081173A (en) * | 2012-01-30 | 2014-10-01 | S.P.M.仪器公司 | Apparatus and method for analysing the condition of a machine having a rotating part |
| CN103616303A (en) * | 2013-12-02 | 2014-03-05 | 北京乐冶液压气动设备技术有限公司 | Tension-compression and torsion vibration fatigue test device |
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Effective date of registration: 20210819 Address after: Room 917, No. 58-1, Beizhan Second Road, Shenhe District, Shenyang, Liaoning 110013 Patentee after: Shenyang Dechuang metal materials Co.,Ltd. Address before: 100191 No. 37, Haidian District, Beijing, Xueyuan Road Patentee before: BEIHANG University |
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Effective date of registration: 20210901 Address after: Room 514, 407 floor, 37 Xueyuan Road, Haidian District, Beijing 100191 Patentee after: Liu Xiaoyan Address before: Room 917, No. 58-1, Beizhan Second Road, Shenhe District, Shenyang, Liaoning 110013 Patentee before: Shenyang Dechuang metal materials Co.,Ltd. |
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