CN106768738A - A kind of suspension arrangement and application method for hanging vibrator - Google Patents
A kind of suspension arrangement and application method for hanging vibrator Download PDFInfo
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- CN106768738A CN106768738A CN201611041053.3A CN201611041053A CN106768738A CN 106768738 A CN106768738 A CN 106768738A CN 201611041053 A CN201611041053 A CN 201611041053A CN 106768738 A CN106768738 A CN 106768738A
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- bolt
- vibrator
- suspension arrangement
- intermediate plate
- projection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0066—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by exciting or detecting vibration or acceleration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
Tested in structure dynamics the invention discloses one kind --- it is used to hang the suspension arrangement of vibrator and the application method of the device in test modal analysis, the device can drive vibrator to realize that the fine setting of its three-dimensional (XYZ) is mobile and the device has the function of stopping to lock, and the suspension arrangement includes hand lift, the base for connecting support whole device, the mounting seat for installing optical axis, optical axis, linear bearing, supporting table, fine adjustment stage, suspension platform.The characteristics of suspension arrangement has low cost, reliability is high, can be moved in the either direction individual fine tuning in three-dimensional (XYZ) and stop locking, it is ensured that vibrator front end push rod and knife rest are energized the force snesor installed at place and realize precisely connecting between the two.The suspension arrangement operate with method is simple simultaneously, and associated components dimensions can be modified according to actual needs to meet the requirement under different spaces constraint and loading condition.
Description
Technical field
Finely tune movement and stop the suspension arrangement locked to realize its three-dimensional the present invention relates to a kind of suspension vibrator.
Background technology
Model analysis is a kind of method of Structure dynamic characteristics research, and wherein test modal analysis are set by some instruments
It is standby to carry out dependence test, by gathering the input signal and output signal of system in process of the test, then these signals are joined
Number identification is obtained with the modal parameter of structure, these modal parameters can not only the characteristic of evaluation structure also can be the excellent of structure
Change and guide direction.In test modal analysis, conventional motivational techniques have hammering and vibrator to encourage two methods, in many feelings
Vibrator is by elastic string under condition and be fixed on the suspension arrangement on ground to connect be a kind of desirable vibrator flexible fastening in ground
The mode in face.
What is be currently, there are realizes the suspension arrangement of three axle locomotive functions, there are problems that various.Though such as tower crane energy
Realize that three-dimensional is moved, but the respective mobile of XY both directions can not be realized and can not be finely tuned；Three axle fine adjustment stages can also realize three
To movement, fine setting can be also realized, but complex structure, stroke are small, bearing capacity difference etc..And be used for hanging in test modal analysis
The big function mobile most without three-dimensional fine setting of the suspension arrangement of vibrator, can realize the suspension for hanging vibrator for stopping to lock
Device is even more rare, and the method for commonly using now is slowly to move whole suspension arrangement, and the fixation of tightrope is adjusted in addition
Position and length are energized a connection for the force snesor of place's installation realizing the vibrator front end push rod that suspended on and knife rest, this
The method of kind is subject to experimenter's artifical influence factor very big, it is likely that can produce torque, calculates transmission function wrong, causes experiment
Resultant error is big, and its reason is as follows：
By force sensor measuring, force snesor can only be used for measuring exciting force input quantity, and can not measure other physics
Amount (such as torque), when the connection of push rod and force snesor will not cause input to change on time, such as push rod bends and produces
Torque, input quantity at this moment includes exciting force and torque, and output now is the response under exciting force and torque collective effect, is passed
Delivery function is：
The transmission function that this method survey calculation is obtained is wrong, therefore can there is very big mistake in Frequency Response Analysis
Difference, experimental result is inaccurate.
The content of the invention
The technical problems to be solved by the invention are：There is provided one kind is used to hang vibrator in structural test model analysis
And can realize that the fine setting of its three-dimensional is mobile and stops suspension arrangement and the application method locked.The suspension arrangement low cost of manufacture, behaviour
Make method simple, the push rod and structure that can realize vibrator front end are energized accurate connection a little.
To achieve these goals, following technical side can be used provided by the present invention for hanging the suspension arrangement of vibrator
Case：
A kind of suspension arrangement for hanging vibrator, including base, installed in base and upwardly extend line slideway,
Screw lift on base, installed in screw lift top and extend laterally supporting table, installed in supporting table
On fine adjustment stage and the suspension platform in fine adjustment stage；
The screw lift includes worm screw and the screw mandrel for being cased with worm gear with driving wheel, and silk is adjusted by rotary worm
Bar is moved upwardly or downwardly；
The line slideway includes the lower linear bearing being fixed on base, the upper linear axis being fixed on below supporting table
Hold, optical axis；The lower linear bearing of lower end insertion of the optical axis, the upper end of optical axis passes through upper linear bearing and passes through supporting table；
The fine adjustment stage includes base plate, the intermediate plate being carried on base plate and the top board being carried on intermediate plate, described
Plate upper surface is provided with the first guide rail, and intermediate plate lower surface is provided with the first guide groove coordinated with the first guide rail, the upper table of intermediate plate
Face is provided with the second guide rail of setting orthogonal with the first guide rail, and the lower surface of top board is provided with the second guide groove coordinated with the second guide rail；
The base plate, intermediate plate and top board are respectively provided with two sides and two end faces；
One side of base plate is provided with the first projection and the first bolt horizontal through the first projection, one of intermediate plate
There is outwardly and against the first bolt the first force-bearing piece on side；Another side of base plate be provided with the second projection and
Have horizontal through the second bolt of the second projection, on another side of top board outwardly and against the second of the second bolt
Force-bearing piece；Intermediate plate is set to be moved forward along the first guide rail when the first bolt heads on the first force-bearing piece, the second force-bearing piece then heads on second
Bolt is retreated；
One end face of intermediate plate is provided with the 3rd projection and the 3rd bolt horizontal through the 3rd projection, one of top board
Have on end face outwardly and against the 3rd force-bearing piece of the 3rd bolt；Another end face of intermediate plate is provided with the 4th projection
And have horizontal through the 4th bolt of the 4th projection, on another end face of intermediate plate outwardly and against the 4th bolt
4th force-bearing piece；Top board is set to be moved forward along the second guide rail when the 3rd bolt heads on the 3rd force-bearing piece, the 4th force-bearing piece then heads on
Four bolts are retreated.
Compared with prior art, method proposed by the present invention has the advantages that：
1. the device can each be moved to each direction of three-dimensional (XYZ), mobile fine setting be carried out constantly, so as to guarantor
Card vibrator front end push rod and knife rest are energized the force snesor installed at a place and realize precisely being connected, and transmit power without transmitting power
Square.At this moment the transmission function that survey calculation is obtained is dynamic characteristic ginseng that is correct, being obtained in the Data Management Analysis below
Number will be correct and reliable.
2. the device can realize stopping locking function i.e. only, and three directions can all be realized.
3. all parts simple structure used by whole device, part can directly have been bought, and not have the special process will
Ask, low cost, functional requirement can be realized with relatively low cost, high standard.
4. according to actual needs, associated components specification can be modified, meet different spaces constraint and load bar
Requirement under part, under numerous conditions, the vibrator front end push rod and the accurate of force snesor that be suspended on multimode realization connect
Connect.
Further, present invention also offers the suspension arrangement for hanging vibrator application method technical scheme：
The tightrope that vibrator will be hung with first is fixed on suspension platform, and is horizontal vibrator front end push rod；Then observe
The relative position of vibrator front end push rod and knife rest excitation point, makes worm gear drive screw mandrel to move up and down with reality by rocking-turn driving wheel
The movement of fine setting up and down of existing vibrator front end push rod, fine adjustment stage can realize vibrator because of its ad hoc structure by twisting screw
Fine setting movement and locking of the front end push rod in horizontal plane both direction (X to and Y-direction), can finally reach vibrator front end push rod
With structure be energized at force snesor accurate connection.
Brief description of the drawings
Fig. 1 is the overall structure stereogram of suspension arrangement of the present invention.
Fig. 2 is the stereogram of base in the present invention.
Fig. 3 is the stereogram of cathetus guide rail of the present invention.
Fig. 4 is the stereogram of screw lift in the present invention.
Fig. 5 is the stereogram of fine adjustment stage in the present invention.
Fig. 6 is two bolts and two signals of force-bearing piece arrangement between the base plate of fine adjustment stage in the present invention and intermediate plate
Figure.
Fig. 7 is that two bolts and two force-bearing pieces arrangement are shown between the intermediate plate of fine adjustment stage in the present invention and top board
It is intended to.
Fig. 8 is the stereogram of suspension platform in the present invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and detailed description：
Refer to shown in Fig. 1, the invention discloses a kind of suspension arrangement for hanging vibrator, including base 1, installation
Base 1 and upwardly extend line slideway 2, the screw lift 3 on base 1, installed in the top of screw lift 3
And supporting table 4, the fine adjustment stage 5 in supporting table 4 and the suspension platform 51 in fine adjustment stage 5 for extending laterally.
Also include the tightrope (not shown) for being enclosed within suspension platform and extending downwardly, driver is suspended on tightrope.
Incorporated by reference to shown in Fig. 2, the base 1 includes four blocks of aluminium sheets, and two horizontal strokes two are longitudinally set with to be put, wherein two blocks of aluminium sheets are carried on separately
On outer two blocks of aluminium sheets, and it is integral to be screwed assembling；The base lower section is provided with the castor (not shown) with brake.When
After whole suspension arrangement moves to correct position, the brake stepped on castor can realize lock of the suspension arrangement relative to ground
Only.
Incorporated by reference to shown in Fig. 3, the line slideway 2 includes the lower linear bearing being fixed on by mounting seat 21 on base 1
22nd, upper linear bearing 23, the optical axis 24 of the lower section of supporting table 4 are fixed on；Lower end the insertion lower linear bearing 22, light of the optical axis 24
The upper end of axle 24 is through upper linear bearing 23 and passes through supporting table 4.
Incorporated by reference to shown in Fig. 4, the screw lift 3 includes the snail with driving wheel (being in the present embodiment handwheel)
Bar 31 and the screw mandrel 32 for being cased with worm gear (leading screw is connected with worm gear with screw thread pair) coordinated with worm screw 31, by rotary worm 31 and
Worm Wheel System is formed between screw mandrel 32 so as to adjust being moved upwardly or downwardly for screw mandrel 32.Screw mandrel 32 is fixed by flange 33
On base 1.And the supporting table 4 moves up and down (Z with line slideway 2 in the presence of screw-threaded shaft elevator 3 to be oriented to realization
To movement), and leading screw 32 in screw-threaded shaft elevator 3 have auto-lock function can realize the lifting of supporting table 4 stop lock.The silk
The top of bar 32 is connected by flange 33 with supporting table 5, and the up and down motion of leading screw 32 can pass to the band of supporting table 4 by flange 33
It is moved to move up and down.
Incorporated by reference to shown in Fig. 5, during the fine adjustment stage 5 includes base plate 6, the intermediate plate 7 being carried on base plate 6 and is carried on
Between top board 8 on plate 7, the upper surface of the base plate 6 is provided with the first guide rail 61, and intermediate plate lower surface is provided with and coordinates with the first guide rail 61
The first guide groove (non-label), the upper surface of intermediate plate 7 is provided with the second guide rail (not shown) with the orthogonal setting of the first guide rail 61,
The lower surface of top board 8 is provided with the second guide groove 81 coordinated with the second guide rail.Because the first guide rail is orthogonal with the second guide rail, make micro-
Leveling platform 5 on the whole can be each mobile in both direction in the horizontal plane (i.e. X to, Y-direction).
And it is further, in order to realize intermediate plate 7 and top board 8 in fine adjustment stage 5 stop lock, to fine adjustment stage 5
Structure is further improved.The base plate 6, intermediate plate 7 and top board 8 are respectively provided with two sides and two end faces.
With reference to shown in Fig. 6, a side of base plate 6 is provided with the first projection 62 and horizontal through the first projection 62 first
Bolt 63.There is outwardly and against the first bolt 63 the first force-bearing piece 71 on one side of intermediate plate 7.Base plate 6
Another side is provided with the second projection 64 and the second bolt 65 horizontal through the second projection 64.Another side of intermediate plate 7
There is outwardly and against the second bolt 65 the second force-bearing piece 72 on face；Make when the first bolt 63 heads on the first force-bearing piece 71
Intermediate plate moves forward along the first guide rail, and the second force-bearing piece 72 then heads on the second bolt 65 and retreats；So by the first bolt 63
Movement can be subject to that the second bolt 65 is spacing acts on, otherwise the movement of the second bolt 65 can also receive the spacing of the first bolt 63,
So that the movement of intermediate plate 7 is to stop locking.
With reference to shown in Fig. 7, with above-mentioned intermediate plate 7 move i.e. stop i.e. lock principle it is identical.Set on one end face of intermediate plate 7
There are the 3rd projection 73 and the 3rd bolt 74 horizontal through the 3rd projection 73.On one end face of top board 8 have it is outwardly simultaneously
Against the 3rd force-bearing piece 82 of the 3rd bolt 74.Another end face of intermediate plate 7 is provided with the 4th projection 75 and horizontal through
4th bolt 76 of four projections 75, has outwardly and the 4th holding against the 4th bolt 76 on another end face of top board 8
Power block 83.Top board 8 is set to be moved forward along the second guide rail when the 3rd bolt 74 heads on the 3rd force-bearing piece 82, the 4th force-bearing piece 83 is then headed on
4th bolt 76 is retreated.
Refer to shown in Fig. 8, suspension platform 51 on have perforation also have fixed screw, can by tightrope under numerous conditions,
Realize that multimode hangs vibrator.
Further, optional implementation method also includes, the fine adjustment stage is located at one end of supporting table, supporting table it is another
Outer one end is hung with the counterweight (not shown) that balance is kept to the driver with suspension.
And one embodiment of the application method present invention simultaneously discloses the suspension arrangement for hanging vibrator, specifically
For：The tightrope that vibrator will be hung with first is fixed on suspension platform, and is horizontal vibrator front end push rod；Then see
Examine vibrator front end push rod and knife rest excitation point relative position, by rocking-turn driving wheel make worm gear drive screw mandrel move up and down with
The movement of fine setting up and down of vibrator front end push rod is realized, fine adjustment stage can realize exciting because of its ad hoc structure by twisting screw
Device front end push rod can finally reach vibrator front end push rod and structure quilt in the fine setting movement of horizontal plane both direction and locking
The accurate connection of force snesor at excitation point.Each direction of three-dimensional (XYZ) can each be moved, constantly be moved
Fine setting, so as to realize precisely being connected with the force snesor for ensureing vibrator front end push rod and knife rest to be energized and installing at place, a biography
Power is passed without transmission torque.Now transmission function is：
At this moment the transmission function that survey calculation is obtained is correct, and the dynamic obtained in the Data Management Analysis below is special
Property parameter will be correct and reliable.
Claims (7)
1. a kind of suspension arrangement for hanging vibrator, it is characterised in that：Including base, installed in base and upwardly extend
Line slideway, the screw lift on base, installed in screw lift top and extend laterally supporting table, install
Fine adjustment stage in supporting table and the suspension platform in fine adjustment stage；
The screw lift includes worm screw and the screw mandrel for being cased with worm gear with driving wheel, and screw mandrel is adjusted by rotary worm
It is moved upwardly or downwardly；
The line slideway includes the lower linear bearing being fixed on base, the upper linear bearing, the light that are fixed on below supporting table
Axle；The lower linear bearing of lower end insertion of the optical axis, the upper end of optical axis passes through upper linear bearing and passes through supporting table；
The fine adjustment stage includes base plate, the intermediate plate being carried on base plate and the top board being carried on intermediate plate, the base plate
Upper surface is provided with the first guide rail, and intermediate plate lower surface is provided with the first guide groove coordinated with the first guide rail, and the upper surface of intermediate plate sets
There is the second guide rail of setting orthogonal with the first guide rail, the lower surface of top board is provided with the second guide groove coordinated with the second guide rail；It is described
Base plate, intermediate plate and top board are respectively provided with two sides and two end faces；
One side of base plate is provided with the first projection and the first bolt horizontal through the first projection, a side of intermediate plate
It is upper that there is outwardly and against the first bolt the first force-bearing piece；Another side of base plate is provided with the second projection and level
There is outwardly and second holding against the second bolt through the second bolt of the second projection, on another side of intermediate plate
Power block；Intermediate plate is set to be moved forward along the first guide rail when the first bolt heads on the first force-bearing piece, the second force-bearing piece then heads on the second spiral shell
Bolt is retreated；
One end face of intermediate plate is provided with the 3rd projection and the 3rd bolt horizontal through the 3rd projection, an end face of top board
It is upper have it is outwardly and against the 3rd force-bearing piece of the 3rd bolt；Another end face of intermediate plate is provided with the 4th projection and water
Flat the 4th bolt through the 4th projection, has outwardly and the 4th holding against the 4th bolt on another end face of top board
Power block；Top board is set to be moved forward along the second guide rail when the 3rd bolt heads on the 3rd force-bearing piece, the 4th force-bearing piece then heads on the 4th bolt
Retreat.
2. suspension arrangement according to claim 1, it is characterised in that：The base includes four blocks of aluminium sheets, wherein two blocks of aluminium
Plate is carried on other two blocks of aluminium sheets；The base lower section is provided with the castor with brake.
3. suspension arrangement according to claim 1, it is characterised in that：Also include be enclosed within suspension platform on and extend downwardly it is soft
Rope, the driver is suspended on tightrope.
4. suspension arrangement according to claim 1, it is characterised in that：The top of the screw mandrel is connected by flange with supporting table
Connect.
5. suspension arrangement according to claim 1, it is characterised in that：Having perforation on suspension platform also has fixed screw.
6. suspension arrangement according to claim 3, it is characterised in that：The fine adjustment stage is located at one end of supporting table, branch
The other end for supportting platform is hung with the counterweight that balance is kept to the driver with suspension.
7. the application method of the suspension arrangement for being used to hanging vibrator as any one of claim 1 to 6, its feature exists
In：The tightrope that vibrator will be hung with first is fixed on suspension platform, and is horizontal vibrator front end push rod；Then see
Examine vibrator front end push rod and knife rest excitation point relative position, by rocking-turn driving wheel make worm gear drive screw mandrel move up and down with
The movement of fine setting up and down of vibrator front end push rod is realized, fine adjustment stage can realize exciting because of its ad hoc structure by twisting screw
Device front end push rod can finally reach vibrator front end push rod and structure quilt in the fine setting movement of horizontal plane both direction and locking
The accurate connection of force snesor at excitation point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611041053.3A CN106768738B (en) | 2016-11-22 | 2016-11-22 | It is a kind of for hanging the suspension arrangement and application method of vibration excitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611041053.3A CN106768738B (en) | 2016-11-22 | 2016-11-22 | It is a kind of for hanging the suspension arrangement and application method of vibration excitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106768738A true CN106768738A (en) | 2017-05-31 |
| CN106768738B CN106768738B (en) | 2018-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611041053.3A Active CN106768738B (en) | 2016-11-22 | 2016-11-22 | It is a kind of for hanging the suspension arrangement and application method of vibration excitor |
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| Country | Link |
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| CN (1) | CN106768738B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662403A (en) * | 2018-03-29 | 2018-10-16 | 东南大学 | A kind of vibrator three-dimensional mobile device and its application method |
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| SU896452A1 (en) * | 1980-04-07 | 1982-01-07 | Предприятие П/Я А-3697 | Method of suspending electrodynamic oscillation generator moving system |
| CN103217267A (en) * | 2013-03-27 | 2013-07-24 | 南京理工大学 | Device and method for testing dynamic characteristics parameters of joint part of rolling-sliding combined guide rail |
| CN103217288A (en) * | 2013-03-29 | 2013-07-24 | 南京理工大学 | Device for testing dynamic characteristic parameters of ball screw |
| CN203099232U (en) * | 2013-01-21 | 2013-07-31 | 苏州舜新仪器有限公司 | Vibration exciter fixing clamp |
| CN103323233A (en) * | 2013-05-24 | 2013-09-25 | 南京理工大学 | Device and method for testing dynamic characteristics of single-screw or double-screw rolling supporting linear feed system |
| CN203228074U (en) * | 2013-03-01 | 2013-10-09 | 福建工程学院 | Machining center dynamic testing vibration exciter rack |
| JP5338285B2 (en) * | 2008-12-05 | 2013-11-13 | トヨタ自動車株式会社 | Method and apparatus for testing road noise frequency domain vibration characteristics of shock absorber |
| CN105466655A (en) * | 2015-11-13 | 2016-04-06 | 北京理工大学 | Loading device and loading method for measuring micro vibration characteristic of structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU896452A1 (en) * | 1980-04-07 | 1982-01-07 | Предприятие П/Я А-3697 | Method of suspending electrodynamic oscillation generator moving system |
| JP5338285B2 (en) * | 2008-12-05 | 2013-11-13 | トヨタ自動車株式会社 | Method and apparatus for testing road noise frequency domain vibration characteristics of shock absorber |
| CN203099232U (en) * | 2013-01-21 | 2013-07-31 | 苏州舜新仪器有限公司 | Vibration exciter fixing clamp |
| CN203228074U (en) * | 2013-03-01 | 2013-10-09 | 福建工程学院 | Machining center dynamic testing vibration exciter rack |
| CN103217267A (en) * | 2013-03-27 | 2013-07-24 | 南京理工大学 | Device and method for testing dynamic characteristics parameters of joint part of rolling-sliding combined guide rail |
| CN103217288A (en) * | 2013-03-29 | 2013-07-24 | 南京理工大学 | Device for testing dynamic characteristic parameters of ball screw |
| CN103323233A (en) * | 2013-05-24 | 2013-09-25 | 南京理工大学 | Device and method for testing dynamic characteristics of single-screw or double-screw rolling supporting linear feed system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108662403A (en) * | 2018-03-29 | 2018-10-16 | 东南大学 | A kind of vibrator three-dimensional mobile device and its application method |
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| Publication number | Publication date |
|---|---|
| CN106768738B (en) | 2018-12-14 |
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