CN2762092Y - Vibration testing device of automobile driving shaft bending and torsion - Google Patents
Vibration testing device of automobile driving shaft bending and torsion Download PDFInfo
- Publication number
- CN2762092Y CN2762092Y CN 200420012646 CN200420012646U CN2762092Y CN 2762092 Y CN2762092 Y CN 2762092Y CN 200420012646 CN200420012646 CN 200420012646 CN 200420012646 U CN200420012646 U CN 200420012646U CN 2762092 Y CN2762092 Y CN 2762092Y
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- Prior art keywords
- locking
- bearing seat
- turning axle
- rotating shaft
- shaft
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- Expired - Fee Related
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Abstract
The utility model relates to a vibration testing device for the bending and the torsion of an automobile drive shaft, which is characterized in that the testing device is composed of a base body, locking screw thread pushing rods, pushing blocks, a rotating shaft, a front bearing seat, a back bearing seat, end caps and locking nuts; the front and the back end planes of the base body are provided with the front and the back bearing seats; the bulge section at outer end of the front bearing seat is provided with eight locking screw thread pushing rods which are distributed with equal angles; the locking nuts are arranged on the rods; the top surface of each locking screw thread pushing rod is connected with the pushing block; the position on the front bearing seat corresponding to a centerline of the locking screw thread pushing block is provided with locking marks; the rotating shaft penetrates through the front and the back bearing seats; the back end of the rotating shaft and the outer end of the back bearing seat are provided with the end caps; the front end plane of the rotating shaft is connected with a flange of an automobile drive shaft; the shaft section between the front end of the rotating shaft and the front bearing seat is provided with a dodecagonal plane surface. The utility model has the advantages of novel structure, strong practicability, simpleness, rapidness and high testing precision.
Description
Technical field
The utility model relates to parameter test method, belongs to the modal parameter measurement mechanism, particularly a kind of vehicle transmission bending shaft and torsional excitation test unit.
Background technology
The bending of transmission shaft and torsion mode parameter, be the important indicator of transmission shaft in design, it also is an important content of model analysis, be limited to model analysis equipment and software and hardware technology, analysis of experiments level, most auto vendor at home goes back the fairly perfect test unit that is used for the test of truck drive shaft flexion torsion modal parameter of neither one at present.
Truck drive shaft is a drive disk assembly important in the automobile, in the process of automobilism, transferring power, transmission shaft also bends and twisting vibration, therefore the setting of the natural frequency of the bending of transmission shaft and twisting vibration is the important parameter that guarantees vehicle safety travel, reduces vibration and noise, also is the problem that the vehicle transmission design engineer is concerned about very much.
To the experimental test of transmission shaft beam frequency, all be that the transmission shaft monomer is placed on the iron floor in the past, pushed down transmission shaft one end by pressing plate; Or transmission shaft is connected on the rotatable anchor clamps, by the vibrator exciting, the natural frequency (and then calculating critical speed of drive shaft) of flexural vibrations is asked in the sensor pick-up, but this method can't solve the locking problem of transmission shaft, can't eliminate fully in the process of the test, the free gap at transmission shaft two ends, the precision of data result is lower.
Twisting vibration test to transmission shaft often also is to adopt same way, because the static torque that is applied on the transmission shaft is bigger, the dynamic torque that superposes again simultaneously, the locking problem of transmission shaft is more outstanding, almost can't finish the test of torsional vibration characteristic with said method.
Summary of the invention
The purpose of this utility model provides a kind of bending, torsion vibration natural frequencies that can effectively measure transmission shaft, solve the locking problem in the transmission shaft process of the test, eliminate the test unit of transmission shaft assemblage gap influence, for Automobile Design and the vibration problem that solves transmission shaft provide reliable parameter.
The technical solution of the utility model is achieved in that
Vehicle transmission bending shaft and torsional excitation test unit, it is characterized by: vehicle transmission bending shaft and torsional excitation test unit are by pedestal, locking screwed mandril, jacking block, turning axle, front-end bearing pedestal, rear bearing block, end cap, set nut is formed, before being equipped with on the front/rear end of pedestal, rear bearing block, the locking screwed mandril that raised section, front-end bearing pedestal outer end has eight equal angles to distribute, set nut is arranged on the bar, the end face of locking screwed mandril links to each other with jacking block, there is the locking mark position of corresponding locking screwed mandril center line on the front-end bearing pedestal, before turning axle is applied in, on the rear bearing block, on the rear end of turning axle and the rear bearing block outer end end cap is installed, the front end face of turning axle links to each other with the flange of truck drive shaft, is a dodecagonal plane on the front end of turning axle and the shaft part between the front-end bearing pedestal.
Advantage of the present utility model is this apparatus structure novelty, practical, simple and fast, measuring accuracy height.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Vehicle transmission bending shaft and torsional excitation test unit, it is by pedestal 1, locking screwed mandril 2, jacking block 3, turning axle 4, front-end bearing pedestal 5, rear bearing block 6, end cap 7, set nut 8 is formed, before being equipped with on the front/rear end of pedestal 1, rear bearing block 5 and 6, the locking screwed mandril 2 that raised section, front-end bearing pedestal 5 outer end has eight equal angles to distribute, set nut 8 is arranged on the bar, the end face of locking screwed mandril 2 links to each other with jacking block 3, there is the locking mark position of corresponding locking screwed mandril 2 center lines on the front-end bearing pedestal 5, before turning axle 4 is applied in, on the rear bearing block 5 and 6, the rear end of turning axle 4 is equipped with the location jump ring, on the rear end of turning axle 4 and rear bearing block 6 outer ends end cap 7 is installed, the front end face of turning axle 4 links to each other with the flange of truck drive shaft, is a dodecagonal plane on the shaft part between the front end of turning axle 4 and the front-end bearing pedestal 5.
With reference to Fig. 1, the concrete course of work of the present utility model is:
Lock transmission shaft when carrying out experimental measurement, the outer end of the flange of transmission shaft and turning axle 4 is linked to each other (or link to each other by other flanges), then transmission shaft and turning axle 4 are rotated together, when transmission shaft forwards a certain position in company with turning axle 4, find the locking screwed mandril 2 of two symmetries by the locking mark, rotational lock threaded mandrel 2, make it to withstand on two planes of dodecagonal, and screw set nut 8, locking torque can reach 5000Nm, to obsolete other six threaded mandrels, it is spun on outermost end, and locking is with anti-loosening, in order to avoid influence test findings.After test finishes, at first pull down transmission shaft, and then unclamp locking screwed mandril 2, make turning axle 4 places and free rotary state.
Because the mode exciter test peak torque of transmission shaft need only 4000Nm (static torque+dynamic torque), evidence, the joint gap when this structure can be eliminated the transmission shaft test fully satisfies the technical requirement of the crooked and twisting test of transmission shaft.
This device can mate hydraulic pressure torsional excitation head or electromagnetic exciter, once finishes the bending and the torsional excitation test of transmission shaft, measures the resonant frequency and the critical rotary speed of transmission shaft.Also can use simultaneously by two devices, do the mode of flexural vibration test of transmission shaft separately.
Claims (1)
1, vehicle transmission bending shaft and torsional excitation test unit, it is characterized by: vehicle transmission bending shaft and torsional excitation test unit are by pedestal (1), locking screwed mandril (2), jacking block (3), turning axle (4), front-end bearing pedestal (5), rear bearing block (6), end cap (7), set nut (8) is formed, before being equipped with on the front/rear end of pedestal (1), rear bearing block (5) and (6), the locking screwed mandril (2) that front-end bearing pedestal (5) raised section, outer end has eight equal angles to distribute, set nut (8) is arranged on the bar, the end face of locking screwed mandril (2) links to each other with jacking block (3), there is the locking mark position that front-end bearing pedestal (5) is gone up corresponding locking screwed mandril (2) center line, before turning axle (4) is applied in, on rear bearing block (5) and (6), on the rear end of turning axle (4) and rear bearing block (6) outer end end cap (7) is installed, the front end face of turning axle (4) links to each other with the flange of truck drive shaft, is a dodecagonal plane on the shaft part between the front end of turning axle (4) and the front-end bearing pedestal (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420012646 CN2762092Y (en) | 2004-10-27 | 2004-10-27 | Vibration testing device of automobile driving shaft bending and torsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420012646 CN2762092Y (en) | 2004-10-27 | 2004-10-27 | Vibration testing device of automobile driving shaft bending and torsion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2762092Y true CN2762092Y (en) | 2006-03-01 |
Family
ID=36095212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420012646 Expired - Fee Related CN2762092Y (en) | 2004-10-27 | 2004-10-27 | Vibration testing device of automobile driving shaft bending and torsion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2762092Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735443A (en) * | 2011-03-30 | 2012-10-17 | 西门子公司 | Tensioning test facility for drives |
| CN103033358A (en) * | 2012-12-13 | 2013-04-10 | 重庆理工大学 | Automobile transmission shaft fatigue test method |
| CN106124149A (en) * | 2016-08-23 | 2016-11-16 | 吉林大学 | A kind of contrast test device detecting vehicle transmission shaft vibration and simulation fact |
| CN107727390A (en) * | 2017-08-21 | 2018-02-23 | 江铃汽车股份有限公司 | Automobile power-transmission system flexural property method of testing |
-
2004
- 2004-10-27 CN CN 200420012646 patent/CN2762092Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735443A (en) * | 2011-03-30 | 2012-10-17 | 西门子公司 | Tensioning test facility for drives |
| CN103033358A (en) * | 2012-12-13 | 2013-04-10 | 重庆理工大学 | Automobile transmission shaft fatigue test method |
| CN103033358B (en) * | 2012-12-13 | 2014-12-10 | 重庆理工大学 | Automobile transmission shaft fatigue test method |
| CN106124149A (en) * | 2016-08-23 | 2016-11-16 | 吉林大学 | A kind of contrast test device detecting vehicle transmission shaft vibration and simulation fact |
| CN107727390A (en) * | 2017-08-21 | 2018-02-23 | 江铃汽车股份有限公司 | Automobile power-transmission system flexural property method of testing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA FAW CO., LTD. Free format text: FORMER OWNER: CHINESE AUTO GROUP CO NO.1 Effective date: 20111114 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111114 Address after: 130011 No. 2259 Dongfeng Avenue, West New Economic and Technological Development Zone, Changchun Patentee after: China FAW Group Corporation Address before: Dongfeng Street Lvyuan District of Jilin province 130011 Changchun No. 83 Patentee before: China FAW Group Corporation |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060301 Termination date: 20111027 |