CN102519721B - Transmission gear contact pattern experimental facility - Google Patents
Transmission gear contact pattern experimental facility Download PDFInfo
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- CN102519721B CN102519721B CN201110297604.3A CN201110297604A CN102519721B CN 102519721 B CN102519721 B CN 102519721B CN 201110297604 A CN201110297604 A CN 201110297604A CN 102519721 B CN102519721 B CN 102519721B
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Abstract
The invention discloses a transmission gear contact pattern experimental facility, which comprises two test transmissions of which the output ends are connected through a transmission shaft, and is characterized by further comprising a driving motor, a dragging motor, a torsion sensor, a motor brake and a PC (Personal Computer) controller, wherein the output shaft of the driving motor is connected with the input end of the first test transmission; the output shaft of the dragging motor is connected with one end of the torsion sensor, the other end of the torsion sensor is connected with the input end of the second test transmission through the transmission shaft, and the tail end of the dragging motor is connected with the motor brake; and the driving motor, the dragging motor, the torsion sensor and the motor brake are all electrically connected with the PC controller. The transmission gear contact pattern experimental facility disclosed by the invention has the advantages of high automation degree, stabile performance, good detection precision, and capability of greatly increasing the efficiency and quality of a transmission gear contact pattern experiment.
Description
Technical field
The present invention relates to a kind of transmission gear contact pattern experimental facility.
Background technology
Hypoid gear is because smooth running territory is large, sliding speed is little, the high fields such as aircraft industry, auto industry and heavy mining equipment that are widely used in of transmission efficiency.The particularly fast development of auto industry, requires more and more higher to the meshing quality of hypoid gear.Automotive transmission technical field, by the gear teeth geometric parameter of all gear pairs of assessment, sees whether its contact (area) pattern is evenly distributed, rationally, optimizes the NVH problem such as vibrating noise of variator with this.
Flank of tooth contact (area) pattern is one of important indicator of weighing hypoid gear meshing quality, and the detection of traditional flank of tooth contact (area) pattern is judged as master with experienced engineering technical personnel's range estimation.This method can only the engagement to hypoid gear roughly be assessed, and accuracy of detection is lower, and much time power, can not meet the requirement of modern production.Propose at present digital image processing techniques and computer graphics techniques to be applied in the middle of the identifying of gear contact pattern, first this method is processed the hypoid gear contact region image gathering, extract the flank of tooth and contact (area) pattern border, and then by tooth profile and Two-Dimensional Reconstruction, just can carry out detailed Mathematical Evaluation to the size of contact (area) pattern, position and direction on this basis.
Existing flank of tooth contact (area) pattern test experience all will complete previous work before record and assessment flank of tooth contact (area) pattern, and this comprises the installation of variator and the input and output of variator two ends moment of torsion, guarantees that variator can steady running.But the power in the previous work of current flank of tooth contact (area) pattern test experience and when experiment to provide be all by manually completing conventionally, adopt artificial hand mode drive speed transmission running, the problem existing is test process length consuming time, inefficiency, and the control of input and output torque too relies on skilled operation personnel's experience, often precision is not high, poor stability, cause experimental result data and expection between difference and fluctuation larger.
Summary of the invention
The present invention seeks to: provide a kind of automaticity high, stable performance, the transmission gear contact pattern experimental facility that accuracy of detection is good, can improve efficiency and the quality of the experiment of transmission gear contact (area) pattern greatly.
Technical scheme of the present invention is: a kind of transmission gear contact pattern experimental facility, comprise two test variators that output terminal is connected through transmission shaft, characterized by further comprising drive motor, dragging motor, torque sensor, electromotor brake and PC controller; The output shaft of described drive motor is connected with the input end of variator with the first test; The output shaft of described dragging motor is connected with torque sensor one end, the torque sensor other end is connected with the input end of variator with the second test by transmission shaft, described dragging motor end connects electromotor brake, and described drive motor, dragging motor, torque sensor and electromotor brake are all electrically connected with PC controller.
Further preferred, in the present invention, also comprise first, second speed reduction unit, the output shaft of described drive motor is connected with the first speed reduction unit input end, and the first speed reduction unit output terminal is connected with the input end of variator with the first test by transmission shaft; The output shaft of described dragging motor is connected with the second speed reduction unit input end, and the second speed reduction unit output terminal is connected with torque sensor one end by transmission shaft, and the torque sensor other end is connected with the input end of variator with the second test by transmission shaft.
Further, described in the present invention, the first speed reduction unit is different with the ratio of gear of the second speed reduction unit.This kind of situation sees in the time that selected drive motor is different with dragging motor torque specifications, need to utilize the speed reduction unit of different drive ratios that the output torque of two motors is regulated and reached unanimity.
Certainly, if when in the present invention, the torque specifications of selected drive motor and dragging motor is consistent, the ratio of gear of the first speed reduction unit and the second speed reduction unit can be identical.
Principle of work of the present invention is as follows:
The present invention is mainly used in the experiment of transmission gear contact (area) pattern, the same with routine techniques, prepares as follows before experiment:
1, clean the gear in two tests variator, and by code requirement inspection, gear is detected to metering, draw metering curve (the metering curve pairing of gear arranges for experimental analysis);
2, the viewport of mission case for two tests of processing;
3, gear is ressembled in two tests variator, and between bearing and gear hole, added a small amount of lubricating oil;
4, use red lead spray evenly to spray to gear teeth face;
5, two tests are connected by transmission shaft with the output terminal of variator, input end assembles with drive motor and dragging motor respectively mutually.
Specific experiment flow process is as follows:
1, two variators hang up corresponding gear simultaneously, by the PC controller input loading moment of torsion of two motors and the ratio of gear parameter of two speed reduction units;
2, start PC controller, drive motor moves to promote moment of torsion to desired value with the rotating speed of < 5rpm, and electromotor brake braking dragging motor, progressively raises the static torque of whole device;
3, when dragging motor reach set moment of torsion and stable after, electromotor brake unclamps rapidly, guarantees that drive motor is with < 50r/min running simultaneously, continues 2 minutes (target is two variators running 2 circles);
4, two motors unload electricity subsequently, and electromotor brake is braked rapidly so that whole device is shut down;
5, use the contact (area) pattern of two variator annular wheels of camera Taking Pictures recording;
6, change the loading moment of torsion (also changing load behavior) of two motors, and repeat above-mentioned steps two variators are tested;
7, change the gear of two variators, repeat above-mentioned steps and test.
Experiment final purpose is in conjunction with the variator internal gear metering curve of previously having described, the gear contact pattern of contrast prediction and experiment gained gear spot, and whether trend consistent? if inconsistent, analyze main cause and determine measure and checking requirement; If be necessary, can carry out system variant research.
Drive motor no matter in the present invention, or dragging motor, or electromotor brake, they are prior art with the control technology that is connected between PC controller; Described torque sensor is prior art, it is connected with PC controller, Main Function is that the torque parameter signal recording is flowed to PC controller, carries out record by PC controller, and exports in real time control signal and adjust the working order of two motors according to torque parameter and requirement of experiment.Certainly torque sensor is also well known to those skilled in the art with the control technology that is connected of PC controller, and the present invention no longer describes in detail.
Advantage of the present invention is:
This transmission gear contact pattern experimental facility provided by the invention, its adopt two motors of PC controller control as power source to test gearbox output torque, and can regulate moment of torsion by the setting program in PC controller in experimentation, compare artificial hand mode, automaticity is higher, and manipulation is convenient, and accuracy of detection is better, behavior in service is more stable, can greatly improve efficiency and the quality of transmission gear contact (area) pattern experiment.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the structural representation of a kind of specific embodiment of the present invention.
Wherein: 1, the first test variator; 2, the second test variator; 3, drive motor; 4, dragging motor; 5, torque sensor; 6, electromotor brake; 7, PC controller; 8, the first speed reduction unit; 9, the second speed reduction unit.
Embodiment
Embodiment: in conjunction with a kind of embodiment that Figure 1 shows that transmission gear contact pattern experimental facility of the present invention, it is by variator 1, the second test variator 2, drive motor 3, dragging motor 4, torque sensor 5, electromotor brake 6, PC controller 7, the first speed reduction unit 8 and the second speed reduction unit 9 for the first test.
Described first, second test is connected by transmission shaft with the output terminal of variator 1,2, the output shaft of described drive motor 3 is connected with the first speed reduction unit 8 input ends, and the first speed reduction unit 8 output terminals are connected with the input end of variator 1 with the first test by transmission shaft; The output shaft of described dragging motor 4 is connected with the second speed reduction unit 9 input ends, the second speed reduction unit 9 output terminals are connected with torque sensor 5 one end by transmission shaft, torque sensor 5 other ends are connected with the input end of variator 2 with the second test by transmission shaft, and described dragging motor 4 ends connect electromotor brake 6.Described drive motor 3, dragging motor 4, torque sensor 5 and electromotor brake 6 are all electrically connected with PC controller 7.
The principle of work of the present embodiment is as follows:
One, the design parameter requirement of each parts in the present embodiment;
1, the key property of two motors 3,4: moment of torsion >=400N.m, rotating speed 0～6000rpm, voltage 220V;
2, two speed reduction unit 8,9 ratio of gear: the ratio of gear i of the first speed reduction unit 8
1ratio of gear i with the second speed reduction unit 9
2identical, i certainly
1actual drive motor moment of torsion, the i of depending on
2depend on dragging motor moment of torsion.In the present embodiment, the torque specifications of drive motor and dragging motor is identical.
3, described motor and speed reduction unit can be inputted as a power by supplier integration, the performance requirement to motor before meeting;
4, torque sensor 5:1000N.m, precision ± 0.1%;
5, electromotor brake 6: moment of torsion >=500N.m;
6, PC controller 7: can smooth-goingly realize the control procedure of experimental procedure, without impacting, reliable and stable;
7, the time: be no more than 4min/ measurement point.
Two, the present embodiment is for the experiment of transmission gear contact (area) pattern, the same with routine techniques, prepares as follows before experiment:
1, clean the gear in two tests variator 1,2, and by code requirement inspection, gear is detected to metering, draw metering curve (the metering curve pairing of gear arranges for experimental analysis);
2, the viewport of variator 1,2 casings for two tests of processing;
3, gear is ressembled in two tests variator 1,2, and between bearing and gear hole, added a small amount of lubricating oil;
4, use red lead spray evenly to spray to gear teeth face;
5, two tests are connected by transmission shaft with the output terminal of variator 1,2, input end assembles with drive motor 3 and dragging motor 4 respectively mutually.
Specific experiment step is as follows:
1, two tests hang up corresponding gear with variator 1,2 simultaneously, input the ratio of gear parameter of loading moment of torsion and two speed reduction units 8,9 of two motors 3,4 by PC controller 7;
2, start PC controller 7, drive motor 3 moves to promote moment of torsion to desired value with the rotating speed of < 5rpm, and electromotor brake 6 is braked dragging motor 4, and the static torque of whole device is progressively raise;
3, when dragging motor 4 reach set moment of torsion and stable after, electromotor brake 6 unclamps rapidly, guarantees that drive motor 3 is with < 50r/min running simultaneously, continues 2 minutes (target is two variators, 1,2 running 2 circles);
In above-mentioned steps, drive motor 3 and dragging motor 4 are from entry into service to reaching the situation of change of setting moment of torsion as following table:
T
emax---the max. output torque of two motors.
4, two motors 3,4 unload electricity subsequently, and electromotor brake 6 is braked rapidly so that whole device is shut down;
5, use the contact (area) pattern of two variator 1,2 annular wheels of camera Taking Pictures recording;
6, change the loading moment of torsion (also changing load behavior) of two motors 3,4, and repeat above-mentioned steps two variators 1,2 are tested;
7, change the gear of two variators 1,2, repeat above-mentioned steps and test.
Experiment final purpose is in conjunction with the variator internal gear metering curve of previously having described, the gear contact pattern of contrast prediction and experiment gained gear spot, and whether trend consistent? if inconsistent, analyze main cause and determine measure and checking requirement; If be necessary, can carry out system variant research.
Certainly above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalent transformation or modification that according to the present invention, the Spirit Essence of main technical schemes does, within all should being encompassed in protection scope of the present invention.
Claims (3)
1. a transmission gear contact pattern experimental facility, comprise two variators for test (1,2) that output terminal is connected through transmission shaft, characterized by further comprising drive motor (3), dragging motor (4), torque sensor (5), electromotor brake (6) and PC controller (7); The output shaft of described drive motor (3) is connected with the input end of variator (1) with the first test; The output shaft of described dragging motor (4) is connected with torque sensor (5) one end, torque sensor (5) other end is connected with the input end of variator (2) with the second test by transmission shaft, described dragging motor (4) end connects electromotor brake (6), and described drive motor (3), dragging motor (4), torque sensor (5) and electromotor brake (6) are all electrically connected with PC controller (7);
Also comprise first, second speed reduction unit (8,9), the output shaft of described drive motor (3) is connected with the first speed reduction unit (8) input end, and the first speed reduction unit (8) output terminal is connected with the input end of variator (1) with the first test by transmission shaft; The output shaft of described dragging motor (4) is connected with the second speed reduction unit (9) input end, the second speed reduction unit (9) output terminal is connected with torque sensor (5) one end by transmission shaft, and torque sensor (5) other end is connected with the input end of variator (2) with the second test by transmission shaft.
2. transmission gear contact pattern experimental facility according to claim 1, is characterized in that described the first speed reduction unit (8) is different with the ratio of gear of the second speed reduction unit (9).
3. transmission gear contact pattern experimental facility according to claim 1, is characterized in that described the first speed reduction unit (8) is identical with the ratio of gear of the second speed reduction unit (9).
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| CN201110297604.3A CN102519721B (en) | 2011-09-30 | 2011-09-30 | Transmission gear contact pattern experimental facility |
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| CN201110297604.3A CN102519721B (en) | 2011-09-30 | 2011-09-30 | Transmission gear contact pattern experimental facility |
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| CN102519721B true CN102519721B (en) | 2014-09-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104006960A (en) * | 2013-02-27 | 2014-08-27 | 中机生产力促进中心 | Gearbox gear contact spot semiaxis loading transmission apparatus |
| CN106500989A (en) * | 2016-12-12 | 2017-03-15 | 华南理工大学 | A kind of transmission gear contact (area) pattern bench frame apparatus |
| CN109855779A (en) * | 2018-12-20 | 2019-06-07 | 佛山市罗斯特传动设备有限公司 | A kind of planetary reducer Torque Measuring System and test method |
| CN113138082B (en) * | 2021-05-01 | 2022-05-27 | 中国矿业大学 | Multi-source information fusion bearing fault diagnosis device and method |
| CN114813108B (en) * | 2022-04-29 | 2024-06-14 | 哈尔滨东安汽车动力股份有限公司 | Manual transmission gear contact spot and shell deformation test device and method |
| CN115388839B (en) * | 2022-07-20 | 2024-06-11 | 中国第一汽车股份有限公司 | Cycloidal tooth bevel gear tooth surface thermal deformation correction method, system, equipment and storage medium |
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| US5083458A (en) * | 1989-09-15 | 1992-01-28 | General Electric Company | Method and apparatus for recording loaded running tooth contact patterns on large reduction gears |
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| CN201145637Y (en) * | 2007-11-23 | 2008-11-05 | 天津第一机床总厂 | Torque load application mechanism on angle gear rolling examine machine |
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| CN201837517U (en) * | 2010-07-28 | 2011-05-18 | 重庆齿轮箱有限责任公司 | General loading device |
| EP2330398A1 (en) * | 2009-12-01 | 2011-06-08 | Siemens Aktiengesellschaft | Method for inspecting a gear contact pattern, and gearbox |
| CN202255876U (en) * | 2011-09-30 | 2012-05-30 | 吉孚动力技术(中国)有限公司 | Transmission gear contact pattern testing apparatus |
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Patent Citations (7)
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|---|---|---|---|---|
| US5083458A (en) * | 1989-09-15 | 1992-01-28 | General Electric Company | Method and apparatus for recording loaded running tooth contact patterns on large reduction gears |
| CN101025384A (en) * | 2006-02-18 | 2007-08-29 | 山东理工大学 | Tooth-face contact-area quantized testing method |
| CN101393077A (en) * | 2007-09-19 | 2009-03-25 | 天津横河电子技术有限公司 | Sedan car manual gear box on-line detecting electricity loading test stand and working method thereof |
| CN201145637Y (en) * | 2007-11-23 | 2008-11-05 | 天津第一机床总厂 | Torque load application mechanism on angle gear rolling examine machine |
| EP2330398A1 (en) * | 2009-12-01 | 2011-06-08 | Siemens Aktiengesellschaft | Method for inspecting a gear contact pattern, and gearbox |
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