CN100487402C - Freewheeling clutch dynamic friction torque tester - Google Patents
Freewheeling clutch dynamic friction torque tester Download PDFInfo
- Publication number
- CN100487402C CN100487402C CNB2006101070191A CN200610107019A CN100487402C CN 100487402 C CN100487402 C CN 100487402C CN B2006101070191 A CNB2006101070191 A CN B2006101070191A CN 200610107019 A CN200610107019 A CN 200610107019A CN 100487402 C CN100487402 C CN 100487402C
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- friction
- test
- overcoat
- clutch
- moment
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Abstract
The invention discloses a dynamic frictional force torque test set of a free wheeling clutch, and the dynamic frictional force torque test set comprises a controlling system, a testing system, and a testing device; wherein, a computer of the controlling system controls a motor of a drive mechanism through a sensor and a velometer; the motor is connected with a drive axle through a synchronous belt, the drive axle is connected with a chief axle through a clutch, the output end of the chief axle is connected with a fixed tray, an inner sleeve and an outer sleeve are arranged between the fixed tray and a relative supporting tray, and the supporting tray is fixed by a double supporting block; the tested piece is arranged between the inner sleeve and the outer sleeve and is used for three testing states: an inner frictional force torque test, an outer frictional force torque test, and a banding frictional force torque test. The complete machine has simple structure, friendly interface, and convenient operation; the invention can set the parameters such as the testing rotating speed, the sampling time, and the sampling frequency; the testing data is correct and reliable, and the testing precision is high; after being analyzed and processed by a computer software, therefore, not only the test result can be displayed in dynamic state and in visible state, but also the relative data can be analyzed and collated, and the finished testing result can be stochastically displayed, output, and archived.
Description
Technical field:
The present invention relates to the clutch coupling technical field of measurement and test, a kind of freewheeling clutch dynamic friction torque tester.
Background technology:
At present, the overrunning clutch moment of friction is meant that overrunning clutch is in when surmounting duty, and the damping torque of inside and outside cover relative motion is mainly produced by overrunning clutch and the friction of inside and outside raceway.At the overrunning clutch moment of friction, only limit to the test of staring torque, the method that the test of staring torque adopts counterweight to load, its test process is that interior cover is fixed, overcoat is equipped with the symmetrical arm of force, during test, make the arm of force be in horizontal level, add counterweight at arm of force end, when overcoat is in critical motion state, by counterweight weight and arm of force length, calculate the size of determining the moment of friction value.Though this method is easy, measuring accuracy is poor, can not reflect overrunning clutch course of work moment of friction value.When the overrunning clutch moment of friction is examined, be mainly concerned with the factor such as performance, rotational speed, lubricating system, duty of overrunning clutch, have only these factors are taken all factors into consideration when the friction torque test, can objectively reflect overrunning clutch moment of friction value.
Summary of the invention:
Adopt the measuring accuracy of counterweight loading method poor for overcoming to have now, can not reflect the moment of friction value of the overrunning clutch course of work, the invention provides a kind of freewheeling clutch dynamic friction torque tester; Can simulate overrunning clutch and surmount state, moment of friction value test when finishing difference and surmounting speed; Select suitable friction torque test element, make it can reflect the moment of friction value truly, accurately; The transient changing that can show the moment of friction value in the industrial computer terminal.
For achieving the above object, the present invention adopts following technical scheme:
Described freewheeling clutch dynamic friction torque tester comprises control, test macro and proving installation; Its control system is by the motor of industrial computer by sensor and velometer control gear train; Motor connects transmission shaft by synchronous band, and transmission shaft connects main shaft by shaft coupling, and the main shaft output terminal is connected and fixed dish, is provided with interior overlapping and overcoat between shaft collar and the corresponding step disk, and step disk is maintained static by the double base seat; The test specimen device is used for three kinds of test modes between interior overcoat: inside and outside friction torque test and banded friction torque test.
Described freewheeling clutch dynamic friction torque tester, its proving installation is linked to each other with transmission shaft by being with synchronously by motor, transmission shaft one end passes bearing seat and connects tech-generator, the other end passes bearing seat and connects torque sensor by shaft coupling, the torque sensor other end connects main shaft by shaft coupling, the main shaft other end passes Double bearing support and is connected and fixed dish, overcoat is installed on shaft collar, interior cover one end mounting support dish, step disk is by double base seat location, and test block places between interior cover and the overcoat.
Described freewheeling clutch dynamic friction torque tester, its control test macro is made of industrial computer, tech-generator, torque sensor and data acquisition card; Its tech-generator feeds back to industrial computer in the mode of voltage signal by data acquisition card with the velocity of rotation of axle system, is come motor is carried out speed regulating control by industrial computer, to reach the desired stabilized (steady-state) speed of friction torque test; Under the certain condition of rotating speed, corresponding three kinds of moment of friction values that the test mode overrunning clutch is produced, all be converted into a certain amount of frequency signal by torque sensor, be input to industrial computer through data acquisition card and carry out data processing, obtain the parameter value such as peak value, mean value of sampling time section inner friction torque, and generate dynamic moment of friction value conditional curve.
Described freewheeling clutch dynamic friction torque tester, its three kinds of test modes:
1. external friction moment test: overcoat is fixed on main-axis end, rotates with main shaft; In being installed in, clutch coupling between the overcoat, maintains static by the double base seat by step disk; When interior cover and clutch coupling remain static, overcoat is during with opposite spin, and the moment of friction of measuring between overcoat and the clutch coupling is called external friction moment.
2. inner friction torque test: interior cover is fixed on main-axis end, rotates with main shaft; In being installed in, clutch coupling between the overcoat, maintains static by the double base seat by step disk; When overcoat and clutch coupling remain static, interior cover is during with opposite spin, and the moment of friction in measuring between cover and the clutch coupling is called inner friction torque.
3. banded friction torque test: overcoat is fixed on main-axis end, rotates with main shaft; In cover maintain static by the double base seat by step disk, in clutch coupling is installed between the overcoat, when interior cover remains static, clutch coupling is in free state, overcoat is during with opposite spin, the moment of friction of measuring between the inside and outside cover is called banded moment of friction.
Because adopt aforesaid technical scheme, the present invention has following superiority:
This freewheeling clutch dynamic friction torque tester has adopted industrial computer control, and complete machine structure is simple, and friendly interface is convenient to operation, can be provided with parameters such as test rotating speed, sampling time, sample frequency; By adopting the high precision torque sensor to carry out the signals collecting test, test data accurately, reliably adopts the speed measuring motor control speed of mainshaft, the measuring accuracy height; The measuring-signal that collects is handled by the industrial computer software analysis, can not only show measurement result dynamically, intuitively, and demonstration at random, output, the file of test result put and finished in the data analysis that also can be correlated with in order.
Description of drawings:
Fig. 1 is that overdrive clutch drives attitude friction torque testing instrument structural principle synoptic diagram;
Among the figure: 1-motor, 2-synchronously bands, 3-speed measuring motor, 4,5-bearing seat, 6-transmission shaft, 7-shaft coupling, 8-torque sensor, 9-shaft coupling, 10,11-bearing seat, 12-main shaft, 13-shaft collar, 14-overcoat, 15-test block, 16-interior cover, 17-step disk, 18-supporting base.
Specific embodiment:
As shown in fig. 1: this freewheeling clutch dynamic friction torque tester, its structure is linked to each other with transmission shaft (6) by being with (2) synchronously by motor (1), transmission shaft adopts bearing seat (4), (5) supporting, transmission shaft one end is installed speed measuring motor (3), the other end links by shaft coupling (7) and torque sensor (8), torque sensor connects with main shaft (12) by shaft coupling (9), main shaft adopts bearing seat (10), (11) supporting, the main shaft output terminal is equipped with shaft collar (13), overcoat (14) is installed on the shaft collar, test block (15) is in interior cover (16), between the overcoat (14), interior cover one end mounting support dish (17), step disk is by double base seat (18) location.
During the tester test: tested overrunning clutch (15) is installed between overcoat (14) and the interior cover (16), utilize the step and the shaft collar (13) of overcoat (14) to form the location, make overcoat (14), overrunning clutch (15), interior cover (16) and the concentric rotation of main shaft (12), then step disk (17) is fixed on interior cover (16) end, makes step disk (17) two ends fulcrum and two supporting bases (18) form the location.
When energising starts test:, start tester and test by industrial computer interface setting test rotating speed, sampling time section, sample frequency.Its motor (1) is by band (2) driving transmission shaft (6) rotation synchronously, transmission shaft (6) drives torque sensor (8) by shaft coupling (7) and rotates, torque sensor (8) will move by shaft coupling (9) and transmit and main shaft (12), overrunning clutch overcoat (14) is fixed on main shaft (12) axle head, rotate with main shaft (12), interior cover (16) is maintained static by double base seat (18) by step disk (17), test specimen clutch coupling (15) is installed between the interior overcoat, torque sensor this moment (8) is converted to electric signal with the moment of friction that test specimen (15) is produced, through data acquisition card, send into industrial computer, carry out data processing by analysis software, obtain the peak value of sampling time section inner friction torque, parameter values such as mean value.Speed measuring motor (3) is controlled motor (1) rotating speed by the monitoring to transmission shaft (6) rotating speed, improves the accuracy of the speed of mainshaft.
Three kinds of test modes of tester:
1. external friction moment test: the overrunning clutch overcoat is fixed on main-axis end, rotates with main shaft.In being installed in, clutch coupling between the overcoat, maintains static by the double base seat by step disk.When interior cover and clutch coupling remain static, overcoat is during with opposite spin, and the moment of friction of measuring between overcoat and the clutch coupling is called external friction moment.
2. inner friction torque test: cover is fixed on main-axis end in the overrunning clutch, rotates with main shaft.In being installed in, clutch coupling between the overcoat, maintains static by the double base seat by step disk.When overcoat and clutch coupling remain static, interior cover is during with opposite spin, and the moment of friction in measuring between cover and the clutch coupling is called inner friction torque.
3. banded friction torque test: the overrunning clutch overcoat is fixed on main-axis end, rotates with main shaft.In cover maintain static by the double base seat by step disk, in clutch coupling is installed between the overcoat, when interior cover remains static, clutch coupling is in free state, overcoat is during with opposite spin, the moment of friction of measuring between the inside and outside cover is called banded moment of friction.
Claims (3)
1, a kind of freewheeling clutch dynamic friction torque tester is characterized in that: comprise control, test macro and proving installation; Its control system is by the motor of computing machine by sensor and velometer control gear train; Motor is by the transmission shaft of band connection synchronously, transmission shaft one end passes bearing seat and connects tech-generator, the other end passes bearing seat and connects torque sensor by shaft coupling, the torque sensor other end connects main shaft by shaft coupling, the main shaft output terminal is connected and fixed dish, and cover and overcoat in being provided with between shaft collar and the corresponding step disk are equipped with overcoat on shaft collar, interior cover one end mounting support dish, step disk is by double base seat location; Be used for three kinds of test modes: inside and outside friction torque test and banded friction torque test.
2, freewheeling clutch dynamic friction torque tester according to claim 1 is characterized in that: its control, test macro are made of industrial computer, tech-generator, torque sensor and data acquisition card; Its tech-generator feeds back to industrial computer in the mode of voltage signal by data acquisition card with the velocity of rotation of axle system, is come motor is carried out speed regulating control by industrial computer, to reach the desired stabilized (steady-state) speed of friction torque test; Under the certain condition of rotating speed, corresponding three kinds of moment of friction values that the test mode overrunning clutch is produced, all be converted into a certain amount of frequency signal by torque sensor, be input to industrial computer through data acquisition card and carry out data processing, obtain the parameter value such as peak value, mean value of sampling time section inner friction torque, and generate dynamic moment of friction value conditional curve.
3, freewheeling clutch dynamic friction torque tester according to claim 1 is characterized in that: its three kinds of test modes:
1) external friction moment test: the overrunning clutch overcoat is fixed on main-axis end, rotates with main shaft; When interior cover and clutch coupling remain static, overcoat is during with opposite spin, and the moment of friction of measuring between overcoat and the clutch coupling is called external friction moment;
2) inner friction torque test: cover is fixed on main-axis end in the overrunning clutch, rotates with main shaft.When overcoat and clutch coupling remain static, interior cover is during with opposite spin, and the moment of friction in measuring between cover and the clutch coupling is called inner friction torque;
3) banded friction torque test: the overrunning clutch overcoat is fixed on main-axis end, rotates with main shaft; When interior cover remains static, clutch coupling is in free state, and overcoat is during with opposite spin, and the moment of friction of measuring between the inside and outside cover is called banded moment of friction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101070191A CN100487402C (en) | 2006-09-11 | 2006-09-11 | Freewheeling clutch dynamic friction torque tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101070191A CN100487402C (en) | 2006-09-11 | 2006-09-11 | Freewheeling clutch dynamic friction torque tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101144743A CN101144743A (en) | 2008-03-19 |
| CN100487402C true CN100487402C (en) | 2009-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101070191A Expired - Fee Related CN100487402C (en) | 2006-09-11 | 2006-09-11 | Freewheeling clutch dynamic friction torque tester |
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| CN (1) | CN100487402C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929896B (en) * | 2009-06-24 | 2012-01-18 | 西北工业大学 | High-precision friction dynamic process testing device and method |
| CN102721544A (en) * | 2012-07-11 | 2012-10-10 | 广西工学院 | Comprehensive performance testing table of overrunning clutch |
| CN103616104B (en) * | 2013-08-27 | 2018-05-15 | 龙泉市中泰汽车空调有限公司 | A kind of electromagnetic clutch driving torque test machine used for automobile air conditioning and its test method |
| CN103542972B (en) * | 2013-10-30 | 2016-06-15 | 山东中兴电动工具有限公司 | A kind of intelligent dynamic torque tester |
| CN105571856A (en) * | 2014-10-31 | 2016-05-11 | 北京精密机电控制设备研究所 | Screw type servo mechanism assembly body coupling friction load measuring device |
| CN105043768B (en) * | 2015-06-30 | 2018-08-03 | 安徽协同轴承股份有限公司 | Unilateral bearing durability-testing machines |
| CN106353023A (en) * | 2016-09-26 | 2017-01-25 | 苏州朗高电机有限公司 | Torque sensor protection device |
| CN107024350A (en) * | 2017-04-17 | 2017-08-08 | 哈尔滨工业大学 | High pulling torque freewheel clutch testing fatigue multi-function test stand |
-
2006
- 2006-09-11 CN CNB2006101070191A patent/CN100487402C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101144743A (en) | 2008-03-19 |
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Effective date of registration: 20180509 Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan Patentee after: LUOYANG BEARING RESEARCH INSTITUTE Co.,Ltd. Address before: No. 1, Jilin Road, Luoyang, Henan, Henan Patentee before: LUOYANG BEARING SCIENCE & TECHNOLOGY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20090513 |