CN109738210A - A kind of automobile driving axle dynamic vibration absorber performance testing device and its test method - Google Patents
A kind of automobile driving axle dynamic vibration absorber performance testing device and its test method Download PDFInfo
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- CN109738210A CN109738210A CN201910195964.9A CN201910195964A CN109738210A CN 109738210 A CN109738210 A CN 109738210A CN 201910195964 A CN201910195964 A CN 201910195964A CN 109738210 A CN109738210 A CN 109738210A
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- 238000012360 testing method Methods 0.000 title claims abstract description 83
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 79
- 238000010998 test method Methods 0.000 title claims description 8
- 238000011056 performance test Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 5
- 230000001133 acceleration Effects 0.000 claims description 12
- 241000826860 Trapezium Species 0.000 claims description 3
- 238000013102 re-test Methods 0.000 claims description 3
- 238000011161 development Methods 0.000 abstract description 14
- 238000013461 design Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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Abstract
The invention discloses a kind of automobile driving axle dynamic vibration absorber performance testing devices, including firm banking and mounting bracket, firm banking is fixedly mounted on the ground, mounting bracket is installed on the fixed base, mounting bracket is equipped with mounting base, dynamic vibration absorber is socketed on the driving shaft, and the end of drive shaft is mounted in mounting base.On the driving shaft by dynamic vibration absorber installation, drive shaft is mounted in the test device, is tested drive shaft power bump leveller performance, early period development phase pass through the test to performance, it is optimal drive shaft with dynamic vibration absorber to match, is conducive to the automobile that the later period produces high quality；The design of test device is tested so that the performance test of drive shaft power bump leveller need not be put on vehicle, can repeatedly be tested in bench test in development phase, can rapidly and efficiently find the problem and solve the problems, such as, the development cycle is shortened.The invention also discloses a kind of automobile driving axle dynamic vibration absorber performance test methods.
Description
Technical field
The invention belongs to auto NVH modulation technique fields, and in particular to a kind of automobile driving axle dynamic vibration absorber performance survey
Trial assembly is set and its test method.
Background technique
With the development of the automobile industry, in order to promote product quality and quality, the development cycle for shortening vehicle promotes vehicle
Comfort and texture reduce Vehicular vibration and noise, and NVH performance is most important, match automobile driving axle in development phase early period
Dynamic vibration absorber frequency is particularly important, and the matching of drive shaft power bump leveller frequency can be correctly alleviated and eliminated significantly since automobile drives
Problem brought by the matching of moving axis bump leveller is bad will lead to vehicle vibration if the matching of drive shaft power bump leveller frequency is incorrect
Car feels the uncomfortable problem for having roar to cause occupant when dynamic obvious and acceleration.
Summary of the invention
For the deficiencies in the prior art, it is simple, easy to use that the purpose of the present invention is to provide a kind of structures
Automobile driving axle dynamic vibration absorber performance testing device, which is used for development phase early period, to automobile driving axle power
The matching of bump leveller frequency carries out multi-scheme verifying and modulation, shortens the development cycle, avoids because of drive shaft power bump leveller frequency
With incorrect bring vibration problem；The present invention also provides a kind of automobile driving axle dynamic vibration absorber performance test methods.
To achieve the above object, the technical solution of the present invention is as follows: a kind of automobile driving axle dynamic vibration absorber performance test fills
It sets, including firm banking and mounting bracket, the firm banking is fixedly mounted on the ground, and mounting bracket is mounted on firm banking
On, mounting bracket is equipped with mounting base, and dynamic vibration absorber is socketed on the driving shaft, and the end of drive shaft is mounted in mounting base.
Further, the mounting bracket is symmetricly set on the both ends of firm banking, and mounting bracket is slidably connected at solid
Determine on pedestal, the spacing between two mounting brackets at firm banking both ends is adjustable.
Further, the mounting bracket includes that mounting base, support plate I and mounting plate, mounting plate are connected to firm banking
On, one end of support plate I is connect with mounting plate, and the other end of support plate I connects mounting base.
Further, the support plate I is vertical with mounting plate connects and composes L-type structure, the top of mounting plate and firm banking
Plate fitting, support plate I are an integral molding structure with mounting plate.
Further, the mounting plate is equipped with sliding slot, and the top plate of firm banking is equipped with guide blot, mounting plate and top
Plate fitting, guide blot passes through sliding slot and fastening nut cooperates.
Further, the guide blot and sliding slot are clearance fit, and the sideline of sliding slot is equipped with graduation mark, and mounting plate is logical
It crosses guide blot and sliding slot, fastening nut cooperation is slidably connected on the top plate of firm banking.
Further, the mounting base includes upper fixed lid and lower fixed lid, and support plate I is connected in support plate I, upper solid
Fixed lid is connected by fixing bolt and lower fixed lid, is equipped with soft bushing between upper fixed lid and lower fixed lid.
Further, the firm banking includes top plate and bottom plate and support plate II, and one end of support plate II and top plate connect
It connects, the other end of support plate II is connect with bottom plate, and mounting bracket is connected on top plate, and bottom plate is fixedly connected on the ground.
Further, the both ends of the top plate are equipped with support plate II, and support plate II and top plate connect and compose trapezoidal knot
Structure is equipped with reinforced support between two support plates II.
Based on above-mentioned automobile driving axle dynamic vibration absorber performance testing device, it is dynamic that the invention further relates to a kind of automobile driving axles
Power bump leveller performance test methods, the test method include the following steps:
Step 1. is mounted on dynamic vibration absorber in the drive shaft of test first, then the both ends of drive shaft are installed to survey
In the mounting base that trial assembly is set；
Step 2. pastes three-way vibration acceleration transducer on dynamic vibration absorber, and power hammer is equipped with power and hammers sensor into shape,
Three-way vibration acceleration transducer and power hammer sensor are connect by conducting wire with data collector, and data collector passes through data line
It is connect with computer；
After step 3. correctly connects all test equipments, opens computer and enter test macro progress parameter setting, setting
After firmly hammer tapped in tri- directions X/Y/Z/ of dynamic vibration absorber, test obtain the frequency of dynamic vibration absorber；
Step 4. judges whether the frequency of dynamic vibration absorber matches with drive shaft, if the frequency of dynamic vibration absorber is higher than demand
When frequency, a circle quality is pasted on dynamic vibration absorber reduces frequency；If the frequency of dynamic vibration absorber is lower than demand frequency,
Circumferentially uniformly punching improves frequency to the rubber position of dynamic vibration absorber；Then retest is until meeting the requirements.
The advantages of using technical solution of the present invention are as follows:
1, the design of test device of the present invention is for use in development phase early period, in design early period by performance
Test, is optimal drive shaft with dynamic vibration absorber and matches, and is conducive to the automobile that the later period produces high quality；Test device
Design tested so that the performance test of drive shaft power bump leveller need not be put on vehicle, development phase can be in platform
It is repeatedly tested in frame test, different vehicles can be corresponded to, multi-scheme verifying and tune are carried out to the dynamic vibration absorber of drive shaft
System, more rapidly can efficiently find the problem solve the problems, such as in this way, shorten the development cycle.
2, test device of the invention is applicable to different vehicles, carries out multi-scheme to the dynamic vibration absorber of drive shaft and tests
Card and modulation, more rapidly can efficiently find the problem and solve the problems, such as, shorten the development cycle, can be to every kind in the NVH debugging stage
The performance of dynamic vibration absorber, state, drive shaft is reasonably matched and is verified corresponding to frequency；In addition, test device needle
To the drive shaft of different thicknesses, installation bore is adjustable, can also carry out growing short-range tune for the drive shaft of different length
Section, mounting plate upper hopper chute can be helped preferably to confirm position and distance in test with graduation mark, be carried out by graduation mark
It measures, it can be ensured that the accuracy of adjusting improves test quality.
3, when the present invention is guarantees that mounting bracket adjusts position, front-rear direction does not shift, only edge in the lateral direction
Linear slide is set on each mounting plate there are two sliding slot, and two sliding slots are parallel to each other length, equivalent width, while on top plate
If each guide blot matches a sliding slot there are four guide blot, positioning can be played in this way, prevents mounting bracket from deviating
Effect, further increases test quality.
4, the test and debugging that the present invention can carry out intrinsic frequency to drive shaft power bump leveller goes out suitable frequency range,
Can also Test driver axis optical axis itself mode, the matching of Lai Jinhang dynamic vibration absorber, to modulate the driving of optimum state
Axis carries out the verifying of real vehicle, to eliminate vibration and the noise of vehicle.
5, the present invention is reinforcement structure intensity, increases the stability of firm banking, the both ends of top plate are equipped with support plate
II, support plate II and top plate connect and compose trapezium structure, and reinforced support is equipped between two support plates II.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
Fig. 1 is the overall structure diagram of test device of the present invention.
Fig. 2 is the enlarged diagram that the present invention shows mounting bracket.
Fig. 3 is the structural schematic diagram of test device tune long status of the present invention.
Fig. 4 is the structural schematic diagram of test device tune short status of the present invention.
Structural schematic diagram when Fig. 5 is present invention test
Label in above-mentioned figure is respectively as follows: 1, firm banking；2, mounting bracket；21, mounting base；22, support plate I；23, pacify
Loading board；3, dynamic vibration absorber；4, drive shaft.
Specific embodiment
In the present invention, it is to be understood that term " length ", " width ", "upper", "lower", "front", "rear", " left side ",
" right side ", "vertical", "horizontal", "top", "bottom" "inner", "outside", " clockwise ", " counterclockwise ", " axial direction ", " in-plane ", " week
To " etc. instructions orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of describing this hair
Bright and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation
Construction and operation, therefore be not considered as limiting the invention.
As shown in Figures 1 to 5, a kind of automobile driving axle dynamic vibration absorber performance testing device, including firm banking 1 and peace
Bracket 2 is filled, firm banking 1 is fixedly mounted on the ground, and mounting bracket 2 is mounted on firm banking 1, and mounting bracket 2 is equipped with
Mounting base 21, dynamic vibration absorber 3 are socketed in drive shaft 4, and the end of drive shaft 4 is mounted in mounting base 21.By dynamic absorber
Device 3 is mounted in drive shaft 4, and drive shaft 4 is mounted in the test device, is tested drive shaft power bump leveller performance,
Such as whether Test driver axis dynamic vibration absorber frequency matches correctly, the design of the test device is for use in research and development early period rank
Section is optimal drive shaft with dynamic vibration absorber and matches in design early period by the test to performance, and it is raw to be conducive to the later period
The automobile of output high quality；The design of test device, so that the performance test of drive shaft power bump leveller need not be put on vehicle
It is tested, can repeatedly be tested in bench test in development phase, different vehicles can be corresponded to, drive shaft is moved
Power bump leveller carries out multi-scheme verifying and modulation, more rapidly can efficiently find the problem solve the problems, such as in this way, shortens exploitation week
Phase.
The test device includes two mounting brackets 2, and mounting bracket 2 is symmetricly set on the both ends of firm banking 1, is installed
Bracket 2 is slidably connected on firm banking 1, and the spacing between two mounting brackets 2 at 1 both ends of firm banking is adjustable, this
Sample can be suitable for the drive shaft of different length, can meet a variety of drive shaft power bump leveller performance tests, be applicable in different vehicles
Type.
Mounting bracket 2 includes mounting base 21, support plate I 22 and mounting plate 23, and mounting plate 23 is connected on firm banking 1,
One end of support plate I 22 is connect with mounting plate 23, and the other end of support plate I 22 connects mounting base 21.Support plate I 22 and mounting plate
23 vertically connect and compose L-type structure, and mounting plate 23 is bonded with the top plate 11 of firm banking 1, and support plate I 22 and mounting plate 23 are one
Forming structure.
Mounting plate 23 is equipped with sliding slot 231, and the top plate 11 of firm banking 1 is equipped with guide blot 111, mounting plate 23 and top
Plate 11 is bonded, and guide blot 111 passes through sliding slot 231 and fastening nut 112 cooperates, and guide blot 111 is matched with sliding slot 231 for gap
It closes, mounting plate 23 cooperates the top plate for being slidably connected at firm banking 1 by guide blot 111 and sliding slot 231, fastening nut 112
On 11, fastening nut 112 is loosened, mounting plate 23 is slided relative to top plate 11.The sideline of sliding slot 231 is equipped with graduation mark 232, when
When testing the drive shaft of different length, need to adjust the relative distance between two mounting brackets 2, i.e. mounting plate 23 is opposite
It is slided in top plate 11, that specifically slides is calculated according to the actual situation apart from size, and is measured by graduation mark 232,
To ensure the accuracy adjusted, test quality is improved.
When to guarantee that mounting bracket 2 adjusts position, front-rear direction does not shift, only sliding along straight line in the lateral direction
It is dynamic, it is set on each mounting plate 23 there are two sliding slot, and two sliding slots are parallel to each other length, equivalent width, while setting on top plate 11
There are four guide blot, each guide blot matches a sliding slot, the work that can be played positioning in this way, prevent mounting bracket from deviating
With further increasing test quality.
Mounting base 21 includes that upper fixed lid 211 and lower fixed lid 212, support plate I 22 are connected in support plate I 22, upper solid
Determine lid 211 to connect by fixing bolt 213 with lower fixed lid 212, be equipped between upper fixed lid 211 and lower fixed lid 212 soft
Matter bushing 214, the both ends of drive shaft 4 are plugged on soft bushing 214 and then are mounted in mounting base 21.Due to upper fixed lid
It is attached between 211 and lower fixed lid 212 by bolt, fixing above can be close between lid 211 and lower fixed lid 212
Fitting can also there are gaps, can be suitable for the drive shaft of different thicknesses in this way, when drive shaft is thick, fixed lid 211 with
There is gap between lower fixed lid 212, for the size in gap depending on drive shaft fineness, the length of fixing bolt 213 can also
It is adjusted according to specific needs；The size of soft bushing 214 is depending on drive shaft fineness, such as when drive shaft is meticulous
When can be by increasing the thickness of soft bushing 214, to ensure that upper fixed lid 211 and lower fixed lid 212 can will drive axle clamp
Tightly；Just the soft bushing 214 of major diameter is selected when drive shaft is excessively thick, in addition, soft bushing 214 also acts as the effect of vibration isolation, is improved
The accuracy of test result.
Firm banking 1 includes top plate 11, bottom plate 12 and support plate II 13, and one end of support plate II 13 is connect with top plate 11,
The other end of support plate II 13 is connect with bottom plate 12, and mounting bracket 2 is connected on top plate 11, and bottom plate 12 is fixed by foundation bolt
On the ground, ground herein can for hard steel plate or the cement floor that meets the technical standards, guarantee flatness for connection.
For 1 unilateral side of firm banking, top plate 11 is parallel with bottom plate 12,12 three of top plate 11, support plate II 13 and bottom plate
Between connect and compose Z-shaped structure.
For reinforcement structure intensity, increasing the stability of firm banking 1, the both ends of top plate 11 are equipped with support plate II 13,
Support plate II 13 and top plate 11 connect and compose trapezium structure, and reinforced support 14 is equipped between two support plates II 13.Mesh of the present invention
Be to provide it is a kind of for solve automobile driving axle dynamic vibration absorber intrinsic frequency modulate and matching develop testboard bay.
The test device further includes computer 8, data collector 7, power hammer 6 and three-way vibration acceleration transducer 5, power hammer 6
It is equipped with power and hammers sensor 61 into shape, three-way vibration acceleration transducer 5 and power hammer sensor 61 are connected by conducting wire and data collector 7
It connects, three-way vibration acceleration transducer 5 is pasted on dynamic vibration absorber 3, and data collector 7 is connect by data line with computer 8.
When firmly hammer 6 taps dynamic vibration absorber 3, the force information of power hammer 6 can be passed to data collector 7 by power hammer sensor 61,
Vibration data after three-way vibration acceleration transducer 5 can be tapped dynamic vibration absorber 3 passes to data collector 7, data
It passes to data collector 7 and all information is passed into computer 8, the test macro in computer 8 can obtain dynamic vibration absorber
Frequency.
Test device of the invention is with being fixedly mounted on hard steel plate or on the cement floor that meets the technical standards, then will
Drive shaft equipped with dynamic vibration absorber is mounted in 21 hole of mounting base and fixed, and the test and debugging for carrying out intrinsic frequency is suitable out
Frequency range, can also Test driver axis optical axis itself mode, the matching of Lai Jinhang dynamic vibration absorber, to modulate best
The drive shaft of state carries out the verifying of real vehicle, to eliminate vibration and the noise of vehicle.
Test device of the invention is applicable to different vehicles, carries out multi-scheme verifying to the dynamic vibration absorber of drive shaft
And modulation, it more rapidly can efficiently find the problem and solve the problems, such as, shorten the development cycle, it can be dynamic to every kind in the NVH debugging stage
The performance of power bump leveller, state, drive shaft is reasonably matched and is verified corresponding to frequency.In addition, test device is directed to
The drive shaft of different thicknesses, installation bore is adjustable, can also carry out growing short-range adjusting for the drive shaft of different length,
Mounting plate upper hopper chute can help preferably to confirm position and distance in test with graduation mark.
Based on above-mentioned test device, the invention also provides a kind of automobile driving axle dynamic vibration absorber performance test methods, should
Test method includes the following steps:
Step 1. is mounted on dynamic vibration absorber 3 in the drive shaft 4 of test first, then the both ends of drive shaft 4 are installed
Into the mounting base 21 of test device；For the drive shaft of different thicknesses, be adjusted upper fixed lid 211 and lower fixed lid 212 it
Between extended distance adapt to the drive shafts of different thicknesses, i.e., the opening between upper fixed lid 211 and lower fixed lid 212 becomes not
Step up drive shaft with the ellipticity of size.
Such as when drive shaft is thick, there are gap, upper fixed lid 211 and lower fixation between fixed lid 211 and lower fixed lid 212
Opening between lid 212 becomes ellipticity, and the length of fixing bolt 213 is also adjusted according to specific needs；Soft bushing
214 size is depending on drive shaft fineness；When drive shaft is meticulous can by increasing the thickness of soft bushing 214,
To ensure that upper fixed lid 211 and lower fixed lid 212 can will drive axis clamping.
When the drive shaft to different length is tested, needs to adjust the relative distance between two mounting brackets 2, that is, pacify
Loading board 23 is slided relative to top plate 11, and that specifically slides is calculated according to the actual situation apart from size, and passes through graduation mark 232
It is measured, to ensure the accuracy adjusted.
Step 2. pastes three-way vibration acceleration transducer 5 on dynamic vibration absorber 3, and power hammer 6 is equipped with power hammer sensing
Device 61, three-way vibration acceleration transducer 5 and power hammer sensor 61 are connect by conducting wire with data collector 7, data collector 7
It is connect by data line with computer 8；
After step 3. correctly connects all test equipments, opens computer 8 and enter test macro progress parameter setting, setting
After firmly hammer 6 tapped in tri- directions X/Y/Z/ of dynamic vibration absorber 3, test obtains the frequency of dynamic vibration absorber；
Step 4. judges whether the frequency of dynamic vibration absorber 3 matches with drive shaft 4, if the frequency of dynamic vibration absorber 3 is higher than
When demand frequency, a circle quality is pasted on dynamic vibration absorber 3 reduces frequency, and a circle is pasted usually on dynamic vibration absorber 3
Sheet lead；If the frequency of dynamic vibration absorber 3 is lower than demand frequency, circumferentially uniformly punched in the rubber position of dynamic vibration absorber 3
Improve frequency；Then retest is until meeting the requirements.
Such as the mode of drive shaft is 102HZ, vehicle produces resonance and problem of thundering in the frequency, that just needs to debug
As soon as producing the dynamic vibration absorber of a 102Hz to eliminate or reduce this frequency, at this moment need to use test dress of the invention
It sets and dynamic vibration absorber is matched with test method, the dynamic vibration absorber needed with drive shaft is produced in debugging.
Test device and test method of the invention, not only for the function of manufacturing dynamic vibration absorber is debugged, also
It can be used to the optical axis mode and frequency of Test driver axis, to the optical axis for being fitted without dynamic vibration absorber, in terms of mode being done
Test, can preferably be vehicle drive shaft for testing different length, unlike material, solid shafting and the modal data of hollow shaft
Matching provide reference data.For example, drive shaft generates resonance under some frequency in the traveling of vehicle, it is at this moment just available
The test device carries out test and finds the problem, and solves the problems, such as to go to improve.
Method particularly includes: it pastes three-way vibration acceleration transducer on the driving shaft, opens test software, into corresponding
Test module establishes the model of drive shaft, by arrange on the driving shaft four points, is associated connects into one in a model
Line, firmly hammer taps three directions of the drive shaft point X/Y/Z to be surveyed of test, and drive shaft and test has been motivated to layout, and surveys
Checked after trying several groups the result (drive shaft under some frequency, which can be seen, in the software of test can generate bending) of test by
Test in present gantries can obtain the mode attribute of test axis, provide very big reference value for vehicle match drive shaft.
The present invention is exemplarily described in conjunction with attached drawing above, it is clear that the present invention implements not by aforesaid way
Limitation, as long as use technical solution of the present invention carry out various unsubstantialities improvement, or it is not improved will be of the invention
Conception and technical scheme directly apply to other occasions, within the scope of the present invention.
Claims (10)
1. a kind of automobile driving axle dynamic vibration absorber performance testing device, it is characterised in that: including firm banking (1) and installation branch
Frame (2), the firm banking (1) are fixedly mounted on the ground, and mounting bracket (2) is mounted on firm banking (1), mounting bracket
(2) mounting base (21) are equipped with, dynamic vibration absorber (3) is socketed on drive shaft (4), and the end of drive shaft (4) is mounted on installation
On seat (21).
2. a kind of automobile driving axle dynamic vibration absorber performance testing device as described in claim 1, it is characterised in that: the peace
Dress bracket (2) is symmetricly set on the both ends of firm banking (1), and mounting bracket (2) is slidably connected on firm banking (1).
3. a kind of automobile driving axle dynamic vibration absorber performance testing device as claimed in claim 2, it is characterised in that: the peace
Filling bracket (2) includes mounting base (21), support plate I (22) and mounting plate (23), and mounting plate (23) is connected to firm banking (1)
On, one end of support plate I (22) is connect with mounting plate (23), and the other end of support plate I (22) connects mounting base (21).
4. a kind of automobile driving axle dynamic vibration absorber performance testing device as claimed in claim 3, it is characterised in that: the branch
Fagging I (22) is vertical with mounting plate (23) to connect and compose L-type structure, top plate (11) patch of mounting plate (23) and firm banking (1)
It closes.
5. a kind of automobile driving axle dynamic vibration absorber performance testing device as claimed in claim 4, it is characterised in that: the peace
Loading board (23) is equipped with sliding slot (231), and the top plate (11) of firm banking (1) is equipped with guide blot (111), mounting plate (23) with
Top plate (11) fitting, guide blot (111) pass through sliding slot (231) and fastening nut (112) and cooperate.
6. a kind of automobile driving axle dynamic vibration absorber performance testing device as claimed in claim 5, it is characterised in that: described to lead
It is clearance fit to bolt (111) and sliding slot (231), the sideline of sliding slot (231) is equipped with graduation mark (232), mounting plate (23)
The top plate (11) of firm banking (1) is slidably connected at by guide blot (111) and sliding slot (231), fastening nut (112) cooperation
On.
7. a kind of automobile driving axle dynamic vibration absorber performance testing device as described in right wants 3 to 6 any one, feature exist
In: the mounting base (21) includes upper fixed lid (211) and lower fixed lid (212), and support plate I (22) is connected to support plate I
(22) on, upper fixed lid (211) connect by fixing bolt (213) with lower fixed lid (212), upper fixation cover (211) and under
Soft bushing (214) are equipped between fixed lid (212).
8. a kind of automobile driving axle dynamic vibration absorber performance testing device as described in right wants 3 to 6 any one, feature exist
In: the firm banking (1) includes top plate (11), bottom plate (12) and support plate II (13), one end and top of support plate II (13)
Plate (11) connection, the other end of support plate II (13) are connect with bottom plate (12), and mounting bracket (2) is connected on top plate (11), bottom
Plate (12) is fixedly connected on the ground.
9. a kind of automobile driving axle dynamic vibration absorber performance testing device as claimed in claim 8, it is characterised in that: the top
The both ends of plate (11) are equipped with support plate II (13), and support plate II (13) and top plate (11) connect and compose trapezium structure, two
Reinforced support (14) are equipped between support plate II (13).
10. a kind of automobile driving axle dynamic vibration absorber performance test methods, it is characterised in that: any one based on claim 1 to 9
A kind of automobile driving axle dynamic vibration absorber performance testing device described in, the test method include the following steps:
Step 1. is mounted on dynamic vibration absorber (3) in the drive shaft (4) of test first, then the both ends of drive shaft (4) are pacified
It is attached in the mounting base (21) of test device；
Step 2. pastes three-way vibration acceleration transducer (5) on dynamic vibration absorber (3), and power hammers (6) into shape and is equipped with power hammer biography
Sensor (61), three-way vibration acceleration transducer (5) and power hammer sensor (61) are connect by conducting wire with data collector (7),
Data collector (7) is connect by data line with computer (8)；
After step 3. correctly connects all test equipments, opens computer (8) and enter test macro progress parameter setting, set up
Firmly hammer (6) is tapped in tri- directions X/Y/Z/ of dynamic vibration absorber (3) after finishing, and test obtains the frequency of dynamic vibration absorber
Rate；
Step 4. judges whether the frequency of dynamic vibration absorber (3) matches with drive shaft (4), if the frequency of dynamic vibration absorber (3) is high
When demand frequency, a circle quality is pasted on dynamic vibration absorber (3) reduces frequency；If the frequency of dynamic vibration absorber (3) is lower than
When demand frequency, is circumferentially uniformly punched in the rubber position of dynamic vibration absorber (3) and improve frequency；Then retest is until full
Until foot requires.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186555A (en) * | 2019-05-28 | 2019-08-30 | 平湖众力汽车部件有限公司 | The tool fixture of on-line checking intrinsic frequency |
| CN111638070A (en) * | 2020-05-11 | 2020-09-08 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | System and method for testing vibration reduction performance of hub motor |
| CN112747915A (en) * | 2021-01-29 | 2021-05-04 | 浙江工业大学 | Spiral tube natural frequency measuring device |
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| CN112747915B (en) * | 2021-01-29 | 2024-05-31 | 浙江工业大学 | Spiral pipe natural frequency measuring device |
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