CN102809474A - Whole-vehicle vibration test equipment - Google Patents
Whole-vehicle vibration test equipment Download PDFInfo
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- CN102809474A CN102809474A CN2012102936303A CN201210293630A CN102809474A CN 102809474 A CN102809474 A CN 102809474A CN 2012102936303 A CN2012102936303 A CN 2012102936303A CN 201210293630 A CN201210293630 A CN 201210293630A CN 102809474 A CN102809474 A CN 102809474A
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Abstract
The invention discloses whole-vehicle vibration test equipment. According to the utility model, during the working process, a first runner and a second runner are mutually matched to form a cam mechanism which rotates under the action of a driving device so as to drive a guide rod to perform up-and-down motion through a roller, and the rotation of the first and the second runners is converted into the reciprocating movement of the guide rod; and the guide rod drives a wheel supporting plate to perform reciprocating vibration, so as to achieve the purpose of the whole-vehicle vibration test. The equipment adopting the cam structure has the advantages of higher transmission efficiency, lesser structure abrasion and longer service life; and moreover, the driving work can be completed without the reverse running of the driving device during working process, both the structure abrasion and the energy loss of the driving device are greatly reduced, accordingly, the service life of the equipment is prolonged and the working efficiency is improved.
Description
Technical field
The present invention relates to motor vehicle vibration test technical field, particularly a kind of car load vibration test platform.
Background technology
In daily motor vehicle car load production run; Usually can utilize vibration rig that the motor vehicle car load is carried out the vertical vibration torture test; Data such as each item dynamic stress with the test specimens bassinet structure are also analyzed; So that the slip-stick artist revises the corresponding dynamic analytic process according to concrete test situation, improving its accuracy, thereby reach the purpose of further optimal design.
The vibration rig that is adopted in the present existing motor vehicle car load vibration test process; Normally be connected through shaft coupling between servomotor and ball screw; Nut with ball screw is connected with shaking platform through bolt simultaneously; This reciprocal rotation that just can the servomotor in the operational process be made changes the linear reciprocating motion of shaking platform into through ball screw, to reach the demand of car load vibration test.
Yet; Though existing car load vibration rig can satisfy basic vibration test needs; But because its to-and-fro movement that relies on servomotor whenever does once moving up and down as power source, servomotor all need reverse; The dynamic response intensity of servomotor is higher when equipment is made dither; And the working load of driving members such as ball screw is bigger, causes serviceable life of driving member such as serviceable life and ball screw of servomotor shorter, has seriously restricted the whole service life and the work efficiency of vibration rig.
Therefore, how to prolong the serviceable life of car load vibration rig, and to improve its work efficiency be the important technological problems that those skilled in the art need solve at present.
Summary of the invention
The purpose of this invention is to provide a kind of car load vibration rig, the serviceable life of this car load vibration rig is longer, and its work efficiency is higher.
For solving the problems of the technologies described above; The present invention provides a kind of car load vibration rig, and the involving vibrations platform is provided with some exciting devices that match with vehicle wheels movably on the said shaking table; Said exciting device comprises support; The middle part of said support is provided with the rotating shaft that along continuous straight runs extends, and be set with first runner and second runner in the said rotating shaft successively rotationally, and a side outer edge of said second runner radially protrudes from the outer edge of said first runner along it;
The top of said support is connected with guide frame; The middle part of said guide frame is penetrated with the guide pole that vertically extends; The bottom of said guide pole is provided with the roller that matches with said second runner rotationally, and the top of said guide pole is fixed with the wheel supporting plate that matches with vehicle wheels;
One side of said support is provided with and drives the drive unit that said rotating shaft is rotated.
Preferably, said first runner is provided with some first pilot holes, each said first pilot hole circumferentially arranging successively along said first runner;
Said second runner is provided with second pilot hole that some and said first pilot hole matches, and fixes through keeper between said first pilot hole and said second pilot hole.
Preferably; The bottom of said guide frame is provided with anti-drop device; Said anti-drop device comprises the sleeve that matches with said guide pole, and said guide pole runs through and stretch out in the bottom of said sleeve, and the set inside of said sleeve has the spring that cooperates with said guide pole suit;
The sidepiece of said sleeve is connected with some cylinders that vertically extend, and the top of each said cylinder is fixed on the said guide frame.
Preferably, the bottom inside of said sleeve is provided with the elastic buffer piece that matches with said spring.
Preferably, be connected with reductor between said drive unit and the said rotating shaft.
Preferably, be connected with shaft coupling between the output terminal of said reductor and the said rotating shaft.
Preferably, said drive unit is specially servomotor.
Preferably; Said shaking table is provided with the leading screw that the said exciting device of some drivings moves; Be provided with positioning cylinder between said shaking table and said exciting device; Also be provided with the air feed pump that matches with said positioning cylinder on the said shaking table, and be provided with pressurizer in the air delivering pipeline between said air feed pump and said positioning cylinder.
Preferably, be provided with the undervoltage warning device in the air delivering pipeline between said air feed pump and said positioning cylinder.
Above-mentioned background is technological relatively; Car load vibration rig provided by the present invention, the involving vibrations platform is provided with some exciting devices that match with vehicle wheels movably on the said shaking table; Said exciting device comprises support; The middle part of said support is provided with the rotating shaft that along continuous straight runs extends, and be set with first runner and second runner in the said rotating shaft successively rotationally, and a side outer edge of said second runner radially protrudes from the outer edge of said first runner along it; The top of said support is connected with guide frame; The middle part of said guide frame is penetrated with the guide pole that vertically extends; The bottom of said guide pole is provided with the roller that matches with said second runner rotationally, and the top of said guide pole is fixed with the wheel supporting plate that matches with vehicle wheels; One side of said support is provided with and drives the drive unit that said rotating shaft is rotated.In the course of work, said first runner and said second runner cooperatively interact, and form cam mechanism; This cam mechanism rotates under the driving of said drive unit, and then drives said guide pole through said roller and move up and down, thereby converts the rotation of said first runner and said second runner to-and-fro movement of said guide pole into; Said guide pole drives said wheel supporting plate and makes double vibrations, thereby reaches the purpose of car load vibration test, this kind cams compact conformation; Transmission efficiency is higher; Structure wearing and tearing are less, and serviceable life is longer, and drive unit described in the course of work need not reversing and can accomplish respective drive work; Greatly reduce the structure wearing and tearing and the energy loss of drive unit, thereby make the serviceable life of said car load vibration rig and work efficiency thereof be able to corresponding raising.
In another preferred version of the present invention, said first runner is provided with some first pilot holes, each said first pilot hole circumferentially arranging successively along said first runner; Said second runner is provided with second pilot hole that some and said first pilot hole matches, and fixes through keeper between said first pilot hole and said second pilot hole.In the course of work; Can be according to actual conditions; In time adjust the rigging position between said first pilot hole and said second pilot hole; Thereby realize that adjustment cooperates the shape of the cam mechanism that constitutes by said first runner and said second runner,, reach best test effect to satisfy under the different working condition requirements to the amplitude of said car load vibration rig and the requirement of vibration frequency.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The assembly structure synoptic diagram of the car load vibration rig that Fig. 1 is provided for a kind of embodiment of the present invention;
Fig. 2 is the assembly structure synoptic diagram of exciting device among Fig. 1;
Fig. 3 is the structure side view of Fig. 2;
The assembly structure synoptic diagram of the anti-drop device of the car load vibration rig that Fig. 4 is provided for a kind of embodiment of the present invention.
Embodiment
Core of the present invention provides a kind of car load vibration rig, and the serviceable life of this car load vibration rig is longer, and its work efficiency is higher.
In order to make those skilled in the art person understand the present invention program better, the present invention is done further detailed description below in conjunction with accompanying drawing and embodiment.
Please refer to Fig. 1, Fig. 2 and Fig. 3, the assembly structure synoptic diagram of the car load vibration rig that Fig. 1 is provided for a kind of embodiment of the present invention; Fig. 2 is the assembly structure synoptic diagram of exciting device among Fig. 1; Fig. 3 is the structure side view of Fig. 2.
In embodiment; Car load vibration rig provided by the present invention, involving vibrations platform 11 is provided with some exciting devices that match with vehicle wheels 12 movably on the shaking table 11; Exciting device 12 comprises support 21; The middle part of support 21 is provided with the rotating shaft 22 that along continuous straight runs extends, and be set with first runner 23 and second runner 24 in the rotating shaft 22 successively rotationally, and a side outer edge of second runner 24 radially protrudes from the outer edge of first runner 23 along it; The top of support 21 is connected with guide frame 25; The middle part of guide frame 25 is penetrated with the guide pole 26 that vertically extends; The bottom of guide pole 26 is provided with the roller 27 that matches with second runner 24 rotationally, and the top of guide pole 26 is fixed with the wheel supporting plate 28 that matches with vehicle wheels; One side of support 21 is provided with and drives the drive unit 14 that rotating shaft 22 is rotated.In the course of work, first runner 23 and second runner 24 cooperatively interact, and form cam mechanism; This cam mechanism rotates under the driving of drive unit 14, and then moves up and down through roller 27 drive guide poles 26, thereby converts the rotation of first runner 23 and second runner 24 to-and-fro movement of guide pole 26 into; Guide pole 26 drives wheel supporting plate 28 and makes double vibrations, thereby reaches the purpose of car load vibration test, this kind cams compact conformation; Transmission efficiency is higher; Structure wearing and tearing are less, and serviceable life is longer, and drive unit 14 need not reversing and can accomplish respective drive work in the course of work; Greatly reduce the structure wearing and tearing and the energy loss of drive unit, thereby make the serviceable life of said car load vibration rig and work efficiency thereof be able to corresponding raising.
Further, first runner 23 is provided with some first pilot holes 231, each first pilot hole 231 circumferentially arranging successively along first runner 23; Second runner 24 is provided with some second pilot holes 241 that match with first pilot hole 231, and 241 of first pilot hole 231 and second pilot holes fix through the keeper (not shown).In the course of work; Can be according to actual conditions; In time adjust the rigging position of 241 of first pilot hole 231 and second pilot holes; Thereby realize the shape of adjustment,, reach best test effect to satisfy under the different working condition requirements to the amplitude of said car load vibration rig and the requirement of vibration frequency by first runner 23 cam mechanism that 24 cooperations constitute with second runner.
Should be pointed out that above-mentioned keeper can be specially register pin or bolt etc., that is, all can so long as can satisfy the actual use needs of said car load vibration rig in the actual production operation.
Please refer to Fig. 4, the assembly structure synoptic diagram of the anti-drop device of the car load vibration rig that Fig. 4 is provided for a kind of embodiment of the present invention.
On the other hand; The bottom of guide frame 25 is provided with anti-drop device; Said anti-drop device comprises the sleeve 31 that matches with guide pole 26, and guide pole 26 runs through and stretch out in the bottom of sleeve 31, and the set inside of sleeve 31 has the spring 32 that cooperates with guide pole 26 suits; The sidepiece of sleeve 31 is connected with some cylinders 33 that vertically extend, and the top of each cylinder 33 is fixed on the guide frame 25.In practical work process; When the vibration equipment frequency is big; Cylinder 33 extends under pneumatic action, makes the working position of sleeve 31 and spring 32 suitably move down, and guarantees that the working position of guide pole 26 and roller 27 keeps stable; Thereby avoid 24 of the roller 27 and second runners that break-off takes place, effectively improved the one-piece construction reliability and the job stability thereof of said car load vibration rig.
More specifically, the bottom inside of sleeve 31 is provided with the elastic buffer piece 34 that matches with spring 32.This elastic buffer piece 34 can effectively be avoided the rigid contact between each relevant counterpart of sleeve 31 bottoms, avoids the inoperative damage takes place between each associated components, thereby makes the whole service life of said car load vibration rig be able to corresponding prolongation.
On the other hand, be connected with reductor 16 between drive unit 14 and the rotating shaft 22.Each gear is designed with the wet type electromagnetic clutch in this reductor 16; To realize long-range gear shift; This reductor 16 can suitably be adjusted the power output of drive unit 14, makes its transmission of power more steadily reliable, thereby makes the job stability of rotating shaft 22 be able to corresponding raising.
Particularly, be connected with shaft coupling 15 between the output terminal of reductor 16 and the rotating shaft 22.This shaft coupling 15 can further improve the power transmission stability of 22 of speed reduction unit 16 and rotating shafts, thereby makes that the course of work of rotating shaft 22 and relevant counterpart thereof is more steadily reliable.
More specifically, drive unit 14 is specially servomotor.Certainly, this drive unit 14 is not limited to the servomotor shown in the figure, all can so long as can satisfy the actual use needs of said car load vibration rig.
In addition; Shaking table 11 is provided with the leading screw 13 that some driving exciting devices 12 move; 12 of shaking table 11 and exciting devices are provided with the positioning cylinder (not shown); Also be provided with the air feed pump (not shown) that matches with said positioning cylinder on the shaking table 11, and be provided with the pressurizer (not shown) in the air delivering pipeline between said air feed pump and said positioning cylinder.In the actual use, the staff can adjust the relative position of 12 of each exciting devices flexibly through said positioning cylinder of control and leading screw 13, with the wheel relative position of coupling different tests with car; Simultaneously, said pressurizer can effectively guarantee the working pressure of said positioning cylinder, so that the functional reliability of said car load vibration rig is able to further raising.
Should be clear and definite, in concrete production operation, above-mentioned pressurizer can be specially retaining valve etc., that is, all can so long as can satisfy the actual use needs of said car load vibration rig.
In addition, be provided with undervoltage warning device (not shown) in the air delivering pipeline between said air feed pump and said positioning cylinder.In the course of the work; When the air pressure in the air delivering pipeline is not enough; Said undervoltage warning device can in time send alerting signal, takes means such as shutdown with prompting staff maintenance in time and according to actual conditions, in order to avoid the associated components of said car load vibration rig sustains damage.
To sum up can know; The car load vibration rig that provides among the present invention, the involving vibrations platform is provided with some exciting devices that match with vehicle wheels movably on the said shaking table; Said exciting device comprises support; The middle part of said support is provided with the rotating shaft that along continuous straight runs extends, and be set with first runner and second runner in the said rotating shaft successively rotationally, and a side outer edge of said second runner radially protrudes from the outer edge of said first runner along it; The top of said support is connected with guide frame; The middle part of said guide frame is penetrated with the guide pole that vertically extends; The bottom of said guide pole is provided with the roller that matches with said second runner rotationally, and the top of said guide pole is fixed with the wheel supporting plate that matches with vehicle wheels; One side of said support is provided with and drives the drive unit that said rotating shaft is rotated.In the course of work, said first runner and said second runner cooperatively interact, and form cam mechanism; This cam mechanism rotates under the driving of said drive unit, and then drives said guide pole through said roller and move up and down, thereby converts the rotation of said first runner and said second runner to-and-fro movement of said guide pole into; Said guide pole drives said wheel supporting plate and makes double vibrations; Thereby reach the purpose of car load vibration test, the transmission efficiency of this kind cam-type structure is higher, and the structure wearing and tearing are less; Serviceable life is longer; And drive unit described in the course of work need not reversing can accomplish respective drive work, greatly reduces the structure wearing and tearing and the energy loss of drive unit, thereby makes the serviceable life of said car load vibration rig and work efficiency thereof be able to corresponding raising.
More than car load vibration rig provided by the present invention has been carried out detailed introduction.Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (9)
1. car load vibration rig; The involving vibrations platform; Be provided with some exciting devices that match with vehicle wheels on the said shaking table movably, it is characterized in that: said exciting device comprises support, and the middle part of said support is provided with the rotating shaft that along continuous straight runs extends; Be set with first runner and second runner in the said rotating shaft successively rotationally, and a side outer edge of said second runner radially protrudes from the outer edge of said first runner along it;
The top of said support is connected with guide frame; The middle part of said guide frame is penetrated with the guide pole that vertically extends; The bottom of said guide pole is provided with the roller that matches with said second runner rotationally, and the top of said guide pole is fixed with the wheel supporting plate that matches with vehicle wheels;
One side of said support is provided with and drives the drive unit that said rotating shaft is rotated.
2. car load vibration rig as claimed in claim 1 is characterized in that: said first runner is provided with some first pilot holes, each said first pilot hole circumferentially arranging successively along said first runner;
Said second runner is provided with second pilot hole that some and said first pilot hole matches, and fixes through keeper between said first pilot hole and said second pilot hole.
3. car load vibration rig as claimed in claim 1; It is characterized in that: the bottom of said guide frame is provided with anti-drop device; Said anti-drop device comprises the sleeve that matches with said guide pole; Said guide pole runs through and stretches out in the bottom of said sleeve, and the set inside of said sleeve has the spring that cooperates with said guide pole suit;
The sidepiece of said sleeve is connected with some cylinders that vertically extend, and the top of each said cylinder is fixed on the said guide frame.
4. car load vibration rig as claimed in claim 3 is characterized in that: the bottom inside of said sleeve is provided with the elastic buffer piece that matches with said spring.
5. car load vibration rig as claimed in claim 1 is characterized in that: be connected with reductor between said drive unit and the said rotating shaft.
6. car load vibration rig as claimed in claim 5 is characterized in that: be connected with shaft coupling between the output terminal of said reductor and the said rotating shaft.
7. car load vibration rig as claimed in claim 6 is characterized in that: said drive unit is specially servomotor.
8. like each described car load vibration rig in the claim 1 to 7; It is characterized in that: said shaking table is provided with the leading screw that the said exciting device of some drivings moves; Be provided with positioning cylinder between said shaking table and said exciting device; Also be provided with the air feed pump that matches with said positioning cylinder on the said shaking table, and be provided with pressurizer in the air delivering pipeline between said air feed pump and said positioning cylinder.
9. car load vibration rig as claimed in claim 8 is characterized in that: be provided with the undervoltage warning device in the air delivering pipeline between said air feed pump and said positioning cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102936303A CN102809474A (en) | 2012-08-17 | 2012-08-17 | Whole-vehicle vibration test equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102936303A CN102809474A (en) | 2012-08-17 | 2012-08-17 | Whole-vehicle vibration test equipment |
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| CN102809474A true CN102809474A (en) | 2012-12-05 |
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| CN2012102936303A Pending CN102809474A (en) | 2012-08-17 | 2012-08-17 | Whole-vehicle vibration test equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107588961A (en) * | 2017-07-18 | 2018-01-16 | 芜湖赛宝信息产业技术研究院有限公司 | A kind of entire new energy automobile vibration testing method |
| CN108760207A (en) * | 2018-07-03 | 2018-11-06 | 马鞍山钢铁股份有限公司 | A kind of device and method for evaluating reliability of evaluation car wheel structure reliability |
| CN112304631A (en) * | 2019-07-31 | 2021-02-02 | 本田技研工业株式会社 | Vibration exciter |
| CN113702074A (en) * | 2021-07-31 | 2021-11-26 | 浙江哈克雷斯传动科技有限公司 | New energy automobile frame vibration test device |
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| CN107588961A (en) * | 2017-07-18 | 2018-01-16 | 芜湖赛宝信息产业技术研究院有限公司 | A kind of entire new energy automobile vibration testing method |
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| CN108760207B (en) * | 2018-07-03 | 2021-04-02 | 马鞍山钢铁股份有限公司 | Device for evaluating reliability of wheel structure and reliability evaluation method |
| CN112304631A (en) * | 2019-07-31 | 2021-02-02 | 本田技研工业株式会社 | Vibration exciter |
| CN113702074A (en) * | 2021-07-31 | 2021-11-26 | 浙江哈克雷斯传动科技有限公司 | New energy automobile frame vibration test device |
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Application publication date: 20121205 |