CN101539479A - Testing closed centrifugal clutch of elastic foil bearing with preload effect - Google Patents
Testing closed centrifugal clutch of elastic foil bearing with preload effect Download PDFInfo
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- CN101539479A CN101539479A CN200910022127A CN200910022127A CN101539479A CN 101539479 A CN101539479 A CN 101539479A CN 200910022127 A CN200910022127 A CN 200910022127A CN 200910022127 A CN200910022127 A CN 200910022127A CN 101539479 A CN101539479 A CN 101539479A
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Abstract
The invention belongs to a testing closed centrifugal clutch of elastic foil pneumatic bearings with a preload effect, which comprises a driving disc 1, the driving disc 1 is provided with a centrifugal block 2, a mounting hole 7 is arranged in the middle of the centrifugal block 2, a preload spring 4 is placed in the mounting hole 7, a through hole 8 is arranged at one end of the centrifugal block 2, a lateral mounting hole 11 is arranged at the other end of the centrifugal block 2, and a locking spring 17 and a locking ball 6 are arranged in the mounting hole 11. In the process that the rotating speed of the clutch is from low to high, the centrifugal force of the centrifugal block 2 is increased gradually, and the clutch and a driven shaft 23 are disconnected until a certain rotating speed is reached. Under the action of locking spring force, one half of the locking ball 6 enters a locking hole 14, and the other half remains in the mounting hole 11 of the centrifugal block 2. The invention has the characteristics that the volume is small, the weight is light, large torque can be transmitted, clutch components can not generate additional loads to a driving shaft after disengagement, and the testing accuracy of the measured bearing can not be influenced.
Description
Technical field
The invention belongs to the closed centrifugal clutch technical field, be specifically related to a kind of band preload effect testing closed centrifugal clutch of elastic foil bearing.
Background technology
Closed centrifugal clutch is used to a kind of testing table of calibration tape preload effect compliant foil air bearing performance, and testing table is respectively by two motors that are installed in both sides, formed by the closed centrifugal clutch among measuring tape preload effect compliant foil air bearing, high speed shaft coupling, photoelectric velocity measurement machine and the present invention; Two motors, one is the universal high speed motor, its moment of torsion is little, maximum speed can reach 50,000r/min, and another is general low-speed big motor, maximum speed can reach 25, and 000r/min is passed through the high speed shaft coupling by the universal high speed motor-driven by measuring tape preload effect compliant foil air bearing.Because universal high speed drive motor staring torque is not enough to overcome the moment of friction of tested compliant foil air bearing and axle journal axle is taken off during test, adopt the bi-motor start-up mode when therefore testing table starts, will be connected by the general low-speed big motor of the closed centrifugal clutch among the present invention and another by the other end of measuring tape preload effect compliant foil air bearing.When low speed, two motors start the detent torque that provides bigger simultaneously, when rotary speed reaches certain value (according to the bearing load difference, maximum opening velocity can reach about 10000r/min, the control of opening velocity can realize by the preloading spring of changing closed centrifugal clutch), the tested compliant foil air bearing of closed centrifugal clutch automatic cutout is connected with general low-speed big motor, by the independent motoring ring test platform operation of universal high speed motor.For tested compliant foil air bearing not being produced additional load, the general low-speed big motor that makes closed centrifugal clutch after disconnecting and be connected with closed centrifugal clutch influences the precision of test findings simultaneously, based on this purpose, designed a kind of band preload effect compliant foil air bearing testing closed centrifugal clutch.
Summary of the invention
The object of the present invention is to provide a kind of band preload effect testing closed centrifugal clutch of elastic foil bearing, it is little, in light weight to have a volume, can transmitting large torque when low speed, and the characteristics that disconnect voluntarily when rotating speed acquires a certain degree.
To achieve these goals, the technical solution used in the present invention is: a kind of band preload effect compliant foil air bearing testing closed centrifugal clutch, comprise a driving disc spacing pressing 1, it is characterized in that, driving disc spacing pressing 1 is provided with centrifugal 2, be provided with a mounting hole 7 in the middle of centrifugal 2, place preloading spring 4 in the mounting hole 7, an end of centrifugal 2 is provided with a through hole 8, centrifugal 2 the other end is provided with a horizontal mounting hole 11, be provided with locking spring 17 and locking ball 6 in the mounting hole 11, centrifugal 2 outer end is provided with fixed support 3.
Described driving disc spacing pressing 1 is rotationally connected by bolt 5 with centrifugal 2.
Described driving disc spacing pressing 1 is provided with locking hole 14.
Described driving disc spacing pressing 1 inside is provided with a boss platform 16.
Described fixed support 3 is a triangle.
Described through hole 8 is arranged in the boss platform 9.
The inside of described fixed support 3 is provided with boss platform 18, and centrifugal 2 inboard two ends are provided with recessed step 10, and recessed step 10 matches with boss platform 18 on driving disc spacing pressing 1 and the fixed support 3 respectively.
Described centrifugal 2 is arc shape with driven shaft 23 junctions 22.
The present invention is owing to increased preloading spring 4, be pressed in being driven of driven shaft 23 by the drive end on it 20 for centrifugal 2 and hold 21 places, so in the process of clutch rotational speed by low rising, centrifugal 2 centrifugal force increases gradually, the acting force that has overcome preloading spring 4 begins outside motion, when rotating speed up to one regularly, thorough and driven shaft 23 disconnections of clutch coupling, this moment, the mounting hole 11 on centrifugal 2 aligned with locking hole 14 on the driving disc spacing pressing, under the effect of locking spring power, half of locking ball 6 enters in the locking hole 14, second half rests in centrifugal 2 the mounting hole 11, can realize centrifugal 2 locking effect, because driven shaft 23 spline-shaped for matching with centrifugal 2 drive end, so can either transmitting large torque, but also clutch components does not produce additional load to driving shaft after disengaging, do not influence to measured bearing test accuracy.Even like this under rotating speed is reduced to zero situation, clutch coupling also can be driven end and be in released state.It is little, in light weight that this clutch coupling has a volume, and the place can transmitting large torque when low speed, the characteristics that disconnect voluntarily when rotating speed acquires a certain degree.
Description of drawings
Fig. 1 is an one-piece construction two dimension view of the present invention.
Fig. 2 is a cut-open view of the present invention.
Fig. 3 is a right view of the present invention.
Fig. 4 is centrifugal 2 front view of the present invention.
Fig. 5 is a cross section view of the present invention centrifugal 2.
Fig. 6 is the cross section view of the locking hole 11 on centrifugal 2 of the present invention.
Fig. 7 is the structural representation of driving disc spacing pressing 1 of the present invention, and wherein (a) is front view (FV); (b) be cut-open view.
Fig. 8 is the locking hole 14 amplification profile views of ball of the present invention.
Fig. 9 is mounting hole 11 partial enlarged drawings of the present invention.
Figure 10 is fixed support 3 structural representations of the present invention, and wherein (a) is front view, (b) is sectional view.
Figure 11 is the structural representation of driven shaft 23 of the present invention.
Embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and principle of work are described in further detail.
Referring to Fig. 1,2,3,4,5,9,10, a kind of band preload effect compliant foil air bearing testing closed centrifugal clutch, include a driving disc spacing pressing 1, driving disc spacing pressing 1 is provided with three centrifugal 2, be provided with a mounting hole 7 in the middle of centrifugal 2, preloading spring 4 is set in the mounting hole 7, an end of centrifugal 2 is provided with a through hole 8, bolt 5 links to each other driving disc spacing pressing 1 by through hole 8 with centrifugal 2, centrifugal 2 the other end is provided with a horizontal mounting hole 11, be provided with locking spring 17 and locking ball 6 in the mounting hole 11, centrifugal 2 outer end is provided with fixed support 3, fixed support 3 realizes that clutch coupling transmits than high pulling torque the operating load ability of reinfored clutch under higher rotation speed, rigidity and stability.Described driving disc spacing pressing 1 is connected by bolt 5 with centrifugal 2, can rotate.Described driving disc spacing pressing 1 is provided with locking hole 14.Described driving disc spacing pressing 1 inside is provided with a boss platform 16.Described fixed support 3 is a triangle.The inside of described fixed support 3 is provided with boss platform 18, centrifugal 2 inboard two ends are provided with recessed step 10, recessed step 10 matches with boss platform 18 on driving disc spacing pressing 1 and the fixed support 3 respectively, be implemented under the effect of preloading spring 4, can keep certain remaining space to the center, be used for cooperating with driven shaft 23.Described centrifugal 2 and driven shaft junction 22 are arc shape.
Referring to Fig. 4, Fig. 5, Fig. 6, centrifugal 2 outer end is provided with round boss 9, is provided with circular hole 8 in the round boss 9 and is used for erection bolt; An end of centrifugal 2 is provided with mounting hole 11, and centrifugal 2 inside also is provided with mounting hole 7; Centrifugal 2 be provided with recessed step 12 with the driven shaft cooperation place, recessed step 12 is used under the effect of preloading spring 4 keeping giving for centrifugal 2 driven shaft 23 to stay installing space.
Referring to Fig. 7,8, driving disc spacing pressing 1 is provided with boss platform 13, also is provided with locking hole 14 on the driving disc spacing pressing 1, and through hole 19 is used to remove latch mechanism.
Referring to Fig. 9, when mounting hole 11 and locking hole 14 alignment, locking ball 6 is under the effect of locking spring 17, and half is pushed in the locking hole 14 in locking spring hole 11, to reach the locking effect.
Referring to Figure 11, driven shaft 23 is set to the spline key and drives, can either transmitting large torque, but also after disengaging, realize zero load effect to driven shaft, do not influence to measured bearing test accuracy; Among Figure 11, the 21st, driven shaft be driven the place.
Principle of work of the present invention is:
Under the effect of preloading spring 4, on the outstanding round platform that is forced into fixed support 3 and driving disc spacing pressing 1 by the recessed step on it 10 for centrifugal 2, the size of the power that compresses is according to the size of the speed that will throw off and change preloading spring and decide.Driven shaft 23 spline-shaped for matching with centrifugal 2 drive end 20.When the driving disc spacing pressing 1 of clutch coupling quickens under the drive of general low-speed big starter motor gradually, also quicken gradually for centrifugal 2 thereupon, raising along with speed, centrifugal 2 centrifugal force increases gradually, throw away around bolt 5 to the periphery under action of centrifugal force for centrifugal 2, this moment, preloading spring 4 was compacted gradually.Lock simultaneously on ball 6 maintenances and centrifugal 2 constant position and rotate around bolt along with centrifugal 2.When clutch coupling speed the time up to certain value, preloading spring 4 is compressed to greatest extent, arrive driving disc spacing pressing 1 outermost inner ring for centrifugal 2, locking hole on mounting hole 11 and the driving disc spacing pressing 1 14 alignment simultaneously, under the effect of locking spring 17, locking ball 6 is pushed between locking hole 14 and the mounting hole 11.Because the power that locking spring 17 provides is in vertical position with the power that preloading spring 4 provides, therefore, reach the locking effect with this even locking spring 17 provides very little transverse force promptly can stop under the 4 power effects of bigger preloading spring centrifugal 2 to the clutch core motion.Even like this under rotating speed is reduced to zero situation, clutch coupling also can be driven end and be in released state, do just to make the starter motor rotating speed reach certain time shutdown like this.
Among the figure: 1 is driving disc spacing pressing, and 2 is centrifugal-block, and 3 is fixed support, and 4 is preloading spring, and 5 are Bolt, 6 for locking ball, 7 is installing hole, 8 is through hole, 9 is circular bosses, 10,12 be from Recessed step on the heart piece, 11 is installing hole, and 13 is circular bosses, and 14 is locking hole, and 15 are locking The hole, 16 is circular bosses, and 17 is locking spring, and 18 is circular bosses, and 19 is through hole on the driving disc spacing pressing, 20,22 is the drive end place of clutch, and 21 is the driven place of driven shaft, and 23 is driven Axle.
Claims (8)
1, a kind of band preload effect compliant foil air bearing testing closed centrifugal clutch, comprise a driving disc spacing pressing (1), it is characterized in that, driving disc spacing pressing (1) is provided with centrifugal (2), be provided with a mounting hole (7) in the middle of centrifugal (2), place preloading spring (4) in the mounting hole (7), one end of centrifugal (2) is provided with a through hole (8), the other end of centrifugal (2) is provided with a horizontal mounting hole (11), be provided with locking spring (17) and locking ball (6) in the mounting hole (11), the outer end of centrifugal (2) is provided with fixed support (3).
According to the said a kind of band preload effect compliant foil air bearing testing closed centrifugal clutch of claim 1, it is characterized in that 2, described driving disc spacing pressing (1) is rotationally connected by bolt (5) with centrifugal (2).
3, according to the said a kind of band preload effect compliant foil air bearing testing closed centrifugal clutch of claim 1, it is characterized in that described driving disc spacing pressing (1) is provided with locking hole (14).
4, according to the said a kind of band preload effect compliant foil air bearing testing closed centrifugal clutch of claim 1, it is characterized in that described driving disc spacing pressing (1) inside is provided with a boss platform (16).
5, according to the said a kind of band preload effect compliant foil air bearing testing closed centrifugal clutch of claim 1, it is characterized in that described fixed support (3) is a triangle.
6, according to the said a kind of band preload effect compliant foil air bearing testing closed centrifugal clutch of claim 1, it is characterized in that described through hole (8) is arranged in the boss platform (9).
7, according to the said a kind of band preload effect compliant foil air bearing testing closed centrifugal clutch of claim 1, it is characterized in that, the inside of described fixed support (3) is provided with boss platform (18), the inboard two ends of centrifugal (2) are provided with recessed step (10), and recessed step (10) matches with boss platform (18) on driving disc spacing pressing (1) and the fixed support (3) respectively.
According to the said a kind of band preload effect compliant foil air bearing testing closed centrifugal clutch of claim 1, it is characterized in that 8, described centrifugal (2) are arc shape with driven shaft (23) junction (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100221272A CN101539479B (en) | 2009-04-21 | 2009-04-21 | Testing closed centrifugal clutch of elastic foil bearing with preload effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100221272A CN101539479B (en) | 2009-04-21 | 2009-04-21 | Testing closed centrifugal clutch of elastic foil bearing with preload effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101539479A true CN101539479A (en) | 2009-09-23 |
| CN101539479B CN101539479B (en) | 2011-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100221272A Expired - Fee Related CN101539479B (en) | 2009-04-21 | 2009-04-21 | Testing closed centrifugal clutch of elastic foil bearing with preload effect |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291750A (en) * | 2013-05-10 | 2013-09-11 | 西安交通大学 | Pre-tightening adjustable elastic foil gas bearing |
| CN103782045A (en) * | 2011-06-24 | 2014-05-07 | Iat21创新航空技术有限公司 | Pivot bearing for the low-friction bearing of components |
| CN106121910A (en) * | 2016-08-29 | 2016-11-16 | 嘉兴国电通新能源科技有限公司 | A kind of low wind speed starts vertical axis aerogenerator |
| CN114151452A (en) * | 2021-12-03 | 2022-03-08 | 深圳市普渡科技有限公司 | Bearing preloading device, cabin door device and robot |
| CN115126778A (en) * | 2022-06-15 | 2022-09-30 | 北京航空航天大学 | Hybrid foil gas bearing |
-
2009
- 2009-04-21 CN CN2009100221272A patent/CN101539479B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103782045A (en) * | 2011-06-24 | 2014-05-07 | Iat21创新航空技术有限公司 | Pivot bearing for the low-friction bearing of components |
| CN103782045B (en) * | 2011-06-24 | 2016-03-23 | Iat21创新航空技术有限公司 | For the pivot bearings of the low frictional torque bearing of parts |
| CN103291750A (en) * | 2013-05-10 | 2013-09-11 | 西安交通大学 | Pre-tightening adjustable elastic foil gas bearing |
| CN103291750B (en) * | 2013-05-10 | 2015-08-05 | 西安交通大学 | The elastic foil gas bearing that a kind of pretension is adjustable |
| CN106121910A (en) * | 2016-08-29 | 2016-11-16 | 嘉兴国电通新能源科技有限公司 | A kind of low wind speed starts vertical axis aerogenerator |
| CN114151452A (en) * | 2021-12-03 | 2022-03-08 | 深圳市普渡科技有限公司 | Bearing preloading device, cabin door device and robot |
| CN115126778A (en) * | 2022-06-15 | 2022-09-30 | 北京航空航天大学 | Hybrid foil gas bearing |
| CN115126778B (en) * | 2022-06-15 | 2023-09-12 | 北京航空航天大学 | Hybrid foil gas bearing |
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| Publication number | Publication date |
|---|---|
| CN101539479B (en) | 2011-06-22 |
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Granted publication date: 20110622 Termination date: 20140421 |