CN203148821U - Versatile suspension test fixture based on achieving pre-load - Google Patents
Versatile suspension test fixture based on achieving pre-load Download PDFInfo
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- CN203148821U CN203148821U CN 201220406189 CN201220406189U CN203148821U CN 203148821 U CN203148821 U CN 203148821U CN 201220406189 CN201220406189 CN 201220406189 CN 201220406189 U CN201220406189 U CN 201220406189U CN 203148821 U CN203148821 U CN 203148821U
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- suspends
- test fixture
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Abstract
The utility discloses a versatile suspension test fixture based on achieving pre-load, which includes a bottom plate, two vertical plates, a medium plate, a rod and two mounting samples, wherein two vertical plates is fixed on the bottom plate and the rod is provided between two vertical plates, and the medium plate is disposed between two vertical plates and fixed with the bottom plate, and two mounting samples are symmetrical disposed between the vertical plate and the medium plate, whereby the direction of mounting samples are consistent with the rod axis direction. The utility model has following advantages that the component error is eliminated, and the data accuracy, the precision and the service life of equipment are ensured; the application scope of single axis vibration test-bed is widened; the versatile suspension test fixture has strong universality to mount the vertical plate and the medium plate with different structure and processing.
Description
Technical field
The utility model relates to a kind of anchor clamps, is specially a kind of based on the versatility that the realizes preload test fixture that suspends.
Background technology
Along with people are more and more higher to the requirement of automobile NVH, thereby more and more higher to the performance requirement of dynamic assembly suspension element, dynamic assembly suspension becomes the system that influences car load NVH quality most critical.Three directions of dynamic assembly suspension (X-direction-vertically, Y-direction-laterally, Z-direction-vertical, direction with the vehicle complete vehicle coordinate be with reference to) sound rigidity be to estimate the key index of dynamic assembly suspension element function, the size of dynamic assembly suspension three-dimensional sound rigidity need be obtained and estimate by detecting test.Because of dynamic assembly suspension after entrucking, its vertical effect of always bearing automobile power assembly (engine and wheel box) gravity, for the actual performance after can the entrucking of the most real reflection dynamic assembly suspension, the test of three the direction sound rigidity that will the demanded driving force assembly suspend should be after dynamic assembly suspension bears entrucking be carried out under the state of static preload (being the component of power assembly gravity), for example under the prerequisite of dynamic assembly suspension Z-direction (vertical) preload, detect the sound rigidity of its X-direction (vertically) and Y-direction (laterally).
Yet, traditional dynamic assembly suspension vibration table is the single shaft vibration, can't directly realize finishing under the prerequisite of dynamic assembly suspension Z-direction preload the detection of the sound rigidity of its X-direction (vertically) and Y-direction (laterally), thereby make and detect the X-direction draw, the rigidity situation under the Y-direction sound rigidity applying working condition actual with it has than large deviation, can not reflect the performance of dynamic assembly suspension really.In addition, because when detecting the rigidity of dynamic assembly suspension X-direction, Y-direction, the axis of the axis of dynamic assembly suspension and actuator connecting portion and dynamic assembly suspension and sensor connecting portion is (except the cylindrical shape dynamic assembly suspension) often not point-blank, when the X-direction of single detection dynamic assembly suspension, Y-direction rigidity, the power that actuator applies can produce component, make power value that sensor is responded to and the distortion counter-force of dynamic assembly suspension have than large deviation, detecting the rigidity that draws will inevitably be less than real rigidity.Simultaneously, because sensor or actuator are subjected to the effect of shearing component for a long time, can influence its precision and life-span.
The utility model content
Technical problem to be solved in the utility model is to realize the product Z-direction preload that suspends, and the single shaft vibration table detect suspend product X-direction, Y-direction sound rigidity a kind of based on the versatility that the realizes preload test fixture that suspends.
The technical matters that the utility model solves realizes by the following technical solutions:
A kind of based on the versatility that the realizes preload test fixture that suspends, comprise base plate, two risers, middle plate, four pull bars and two exemplars that suspend, described two risers are fixed on the base plate, be provided with four pull bars between the riser, plate is located between two risers in described, and fixes with base plate, and described two exemplars that suspend are located between riser and the middle plate, symmetry is installed, and the direction of the exemplar that suspends is consistent with the axis direction of four pull bars.
Described base plate is provided with the countersunk head slotted hole, forms by screw with riser to be rigidly connected, and regulates distance between the riser according to test situation by pull bar; Also be provided with the connecting hole with the vibration table actuator on the described base plate.
Described riser is provided with threaded hole and the through hole that is connected with the exemplar that suspends, and also is provided with the connecting hole that cooperates with pull bar on the riser simultaneously, and the riser bottom is provided with the threaded hole that is connected with base plate.
The top of plate is provided with the through hole that is connected with the vibration table sensor in described, and both sides are provided with the through hole that is connected with the exemplar that suspends, and the bottom is provided with the through hole that is connected with base plate.
The form that the utility model uses pull bar to cooperate with nut, the distance between the adjusting vertical plates on both sides, the suspend purpose of Z-direction preload of realization.Adopt two symmetries that suspend to install, component is cancelled out each other in the process of the test, and stress balance is eliminated the component error, guarantees the integrity of the accuracy of data and actuator, sensor.Simultaneously by pull bar can the adjusting activity the spacing of riser realize suspending the preload of Z-direction, and guarantee in process of the test, to suspend and all be subjected to condition of preload, make it to meet with actual conditions.The utility model highly versatile, but mounting structure difference, different riser and the middle plate of processing.
Compared with prior art, the utlity model has following advantage:
1. adopt on the single shaft vibration table and finish test, can realize that its Z-direction applies preload, and need not widen the range of application of single shaft vibration table by the multi testing table;
2. the exemplar symmetry that suspends is installed, and makes sensor or actuator avoid the effect of shearing component for a long time, guarantees its precision and life-span; Eliminate the component error simultaneously, guarantee that data are accurate;
3. highly versatile, but mounting structure difference, different riser and the middle plates of processing get final product.
Description of drawings
Fig. 1 is axial arrangement synoptic diagram of the present utility model.
Fig. 2 is base arrangement synoptic diagram of the present utility model.
Fig. 3 is riser structural representation of the present utility model.
Fig. 4 is middle plate structure synoptic diagram of the present utility model.
Fig. 5 is the A-A cut-open view of Fig. 4.
Fig. 6 is assembling synoptic diagram of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Shown in Fig. 1 ~ 5, a kind of based on the versatility that the realizes preload test fixture that suspends, comprise base plate 1, two risers 2, middle plate 5, four pull bars 3 and two exemplars 4 that suspend, described two exemplars 4 that suspend are located between riser 2 and the middle plate 5, symmetry is installed, and the direction of the exemplar that suspends is consistent with the axis direction of four pull bars 3.Described base plate 1 is provided with countersunk head slotted hole 7, forms by screw with riser 2 to be rigidly connected, and regulates distance between the riser 2 according to test situation by pull bar 3; Also be provided with the connecting hole 8 with the vibration table actuator on the described base plate 1.Described riser 2 is provided with threaded hole 10 and the through hole 12 that is connected with the exemplar that suspends, and also is provided with the connecting hole 11 that cooperates with pull bar on the riser 2 simultaneously, and riser 2 bottoms are provided with the threaded hole 9 that is connected with base plate.The top of plate 5 is provided with the through hole 13 that is connected with the vibration table sensor in described, and both sides are provided with the through hole 14 that is connected with the exemplar that suspends, and the bottom is provided with the through hole 15 that is connected with base plate.
As shown in Figure 6, before the test, earlier base plate 1 is installed on the actuator 16 of vibration table, middle plate 5 is fastened on the sensor 17 of vibration table, secondly the both sides of plate 5 in two exemplars 4 that suspend being fastened on, the Z-direction rigidity unanimity of described two exemplars that suspend, namely two exemplars that suspend are same state; Behind fastening suspend well exemplar 4 and the middle plate 5, with four screws two risers 2 are connected with base plate 1 respectively, this moment, first not lock-screw should guarantee that riser 2 can be mobile flexibly along the countersunk head slotted hole about 7 of base plate 1, simultaneously two risers 2 was fastenedly connected with two exemplars 4 that suspend respectively.Load onto four pull bars 3 this moment, adjust two spacings between the riser 2 by the nut 6 on the adjusting yoke 3, reach the purpose (annotate: it is how many displacements of Z-direction precompressed that the design that suspends generally requires preload) of the Z-direction preload that suspends, tighten four screws under the riser 2 at last, after making it to form fastening being rigidly connected with base plate 1, can begin test.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the instructions just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.Claimed scope of the present utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. one kind based on the versatility that the realizes preload test fixture that suspends, comprise base plate, two risers, middle plate, pull bar and two exemplars that suspend, it is characterized in that: described two risers are fixed on the base plate, be provided with pull bar between the riser, plate is located between two risers in described, and fixes with base plate, and described two exemplars that suspend are located between riser and the middle plate, symmetry is installed, and the direction of the exemplar that suspends is consistent with the axis direction of pull bar.
2. described a kind of based on the versatility that the realizes preload test fixture that suspends according to claim 1, it is characterized in that: described base plate be provided with the countersunk head slotted hole and with the connecting hole of vibration table actuator.
3. described a kind of based on the versatility that the realizes preload test fixture that suspends according to claim 1, it is characterized in that: the connecting hole that described riser is provided with the threaded hole that is connected with the exemplar that suspends and through hole, cooperates with pull bar, the riser bottom is provided with the threaded hole that is connected with base plate.
4. described a kind of based on the versatility that the realizes preload test fixture that suspends according to claim 1, it is characterized in that: plate top is provided with the through hole that is connected with the vibration table sensor in described, both sides are provided with the through hole that is connected with the exemplar that suspends, and the bottom is provided with the through hole that is connected with base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220406189 CN203148821U (en) | 2012-08-16 | 2012-08-16 | Versatile suspension test fixture based on achieving pre-load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220406189 CN203148821U (en) | 2012-08-16 | 2012-08-16 | Versatile suspension test fixture based on achieving pre-load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203148821U true CN203148821U (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220406189 Expired - Lifetime CN203148821U (en) | 2012-08-16 | 2012-08-16 | Versatile suspension test fixture based on achieving pre-load |
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| Country | Link |
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| CN (1) | CN203148821U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387343A (en) * | 2017-08-03 | 2019-02-26 | 上海汽车集团股份有限公司 | Auxiliary mould structure, uni-axial press system and test method |
| CN114136667A (en) * | 2021-11-16 | 2022-03-04 | 东风汽车集团股份有限公司 | Device and method for testing dynamic stiffness of vehicle body suspension in Y direction |
-
2012
- 2012-08-16 CN CN 201220406189 patent/CN203148821U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387343A (en) * | 2017-08-03 | 2019-02-26 | 上海汽车集团股份有限公司 | Auxiliary mould structure, uni-axial press system and test method |
| CN114136667A (en) * | 2021-11-16 | 2022-03-04 | 东风汽车集团股份有限公司 | Device and method for testing dynamic stiffness of vehicle body suspension in Y direction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 545199 No. 70 West Yongxing Road, third industrial zone, the Liujiang River County, the Guangxi Zhuang Autonomous Region, Liuzhou Patentee after: LIUZHOU RISUN AUTOMOBILE SHOCK ABSORPTION TECHNOLOGY Co.,Ltd. Address before: No. 70 West Yongxing Road, third industrial zone, the Liujiang River County, the Guangxi Zhuang Autonomous Region, Liuzhou Patentee before: LIUZHOU RISUN RUBBER PRODUCTS CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |