CN106768754A - Vibration test fixture - Google Patents
Vibration test fixture Download PDFInfo
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- CN106768754A CN106768754A CN201611063758.5A CN201611063758A CN106768754A CN 106768754 A CN106768754 A CN 106768754A CN 201611063758 A CN201611063758 A CN 201611063758A CN 106768754 A CN106768754 A CN 106768754A
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- cross members
- longitudinal beam
- base cross
- top longitudinal
- vibration test
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- 238000012360 testing method Methods 0.000 title claims abstract description 51
- 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 claims description 21
- 239000002184 metal Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/027—Specimen mounting arrangements, e.g. table head adapters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Vibration Prevention Devices (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a vibration test fixture which comprises a first bottom cross beam, a second bottom cross beam, a first top longitudinal beam, a second top longitudinal beam and a plurality of positioning bolts, wherein the first bottom cross beam and the second bottom cross beam are arranged on a vibration table in parallel, the relative distance between the first bottom cross beam and the second top longitudinal beam is adjustable, the first top longitudinal beam and the second top longitudinal beam are arranged in parallel, the height and the relative distance between the first top longitudinal beam and the second top longitudinal beam are adjustable, and the plurality of positioning bolts penetrate through the first bottom cross beam and the second bottom cross beam respectively and are in threaded connection with the corresponding bottom cross beams so as to change the length of the positioning bolts extending out of the corresponding bottom. According to the vibration test fixture disclosed by the embodiment of the invention, the universality can be improved to a certain extent, parts in various shapes and sizes can be fixed on the vibration test bed, and the vibration test fixture does not need to be redesigned according to the shapes of the parts to be tested, so that the workload of personnel is reduced, and the vibration test is convenient to carry out.
Description
Technical field
The present invention relates to a kind of fixture, in particular to a kind of fixture for vibration test.
Background technology
In order to ensure the intensity of parts, need to carry out vibration test to parts before parts are assembled.Vibrated doing
, it is necessary to be fixed on parts to be tested on vibration mechine by the vibration test fixture for making securing part before experiment.Phase
In the technology of pass, the versatility of vibration test fixture is poor, when vibration test is carried out to parts of different shapes, it is necessary to make
Vibration test fixture of different shapes, increased the workload of personnel, be not easy to the carrying out of vibration test.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.Therefore, of the invention
Purpose is to propose a kind of vibration test fixture that at least improve versatility to a certain extent.
According to vibration test fixture of the present invention, including the first base cross members, the second base cross members, the first top are vertical
Beam, the second top longitudinal beam and multiple bolts, first base cross members and second base cross members are suitable to be fixed on
On shake table, first base cross members and second base cross members be arranged in parallel and relative distance is adjustable, first top
Each in portion's longeron and second top longitudinal beam is connected with first base cross members and second base cross members
And height adjustable, first top longitudinal beam and second top longitudinal beam be arranged in parallel and relative distance is adjustable, wherein
Point bolt wears first base cross members and remaining a part of bolt wears second bottom
Crossbeam, the bolt stretches out corresponding base cross members with the threaded connection of corresponding base cross members to change the bolt
Length.
According to vibration test fixture of the present invention, versatility can be to a certain extent improved, can be by various shapes
Parts with size are fixed on vibration mechine, and then without redesigning vibration examination according to parts shape to be tested
Fixture is tested, person works' amount is reduced, is easy to the carrying out of vibration test.
In addition, can also have following additional technical characteristic according to the above-mentioned vibration test fixture of the present invention:
Preferably, each in first top longitudinal beam and second top longitudinal beam by connecting bracket with it is described
First base cross members are connected with second base cross members, each in first top longitudinal beam and second top longitudinal beam
The height adjustable of individual relatively described connecting bracket, the connecting bracket can be in corresponding base cross members along the length of base cross members
Slide in direction.
Further, the connecting bracket includes pedestal and the screw rod being arranged on the pedestal, and the pedestal is slidably
Be arranged in base cross members, the screw rod wears top longitudinal beam, between the screw rod and top longitudinal beam set locking nut group
Part.
Further, the lock nut assembly includes upper locking nut and lower locking nut, the upper locking nut
Be connected with the screw flight with the lower locking nut and respectively positioned at base cross members top surface and bottom surface.
Further, the pedestal is inverted " u "-shaped, and the two ends of the pedestal are respectively arranged with and extend towards one another
Slide rail, chute is provided with base cross members, the slide rail is slidably disposed in the chute.
Further, it is provided with along top in each in first top longitudinal beam and second top longitudinal beam
Multiple screw holes that longeron length direction extends.
Preferably, first top longitudinal beam and second top longitudinal beam are hollow metal side tube.
Preferably, the multiple in the multiple described bolt in first base cross members and second base cross members
Bolt is corresponded on the direction for be orthogonal to base cross members.
Preferably, the afterbody of the bolt is positioning end, and the afterbody of the bolt is arranged with flexible structure.
Further, the flexible structure is rubber sleeve.
Brief description of the drawings
Fig. 1 is the structural representation of the vibration test fixture of the embodiment of the present invention;
Fig. 2 is the top view of the vibration test fixture of the embodiment of the present invention.
Reference:
Vibration test fixture 100, the first base cross members 1, chute 11, the second base cross members 2, the first top longitudinal beam 3, screw rod
Hole 31, the second top longitudinal beam 4, bolt 5, connecting bracket 6, pedestal 61, slide rail 611, screw rod 62, upper locking nut 631 shakes
Dynamic platform 200.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, it is intended to for explaining the present invention, and be not considered as limiting the invention.
In the description of the invention, it is to be understood that term " length ", " height ", " on ", D score, " top ", " bottom " etc.
The orientation or position relationship of instruction are, based on orientation shown in the drawings or position relationship, to be for only for ease of the description present invention and letter
Change description, rather than indicate imply signified device or element must have specific orientation, with specific azimuth configuration and
Operation, therefore be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In the description of the invention, " multiple " is meant that at least two, such as two
It is individual, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally;Can be that machinery connects
Connect, or electrically connect or can communicate with one another;Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can
Be two element internals connection or two interaction relationships of element.For the ordinary skill in the art,
Above-mentioned term concrete meaning in the present invention can as the case may be understood.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score
The first and second feature directly contacts can be included, it is also possible to including the first and second features be not directly contact but by it
Between other characterisation contact.And, fisrt feature second feature " on ", " top " and " above " include that first is special
Levy directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
The present invention is described below in conjunction with the accompanying drawings and with reference to specific embodiment.
The vibration test fixture 100 of the embodiment of the present invention is described with reference to Fig. 1 and Fig. 2 first.
As depicted in figs. 1 and 2, the vibration test fixture 100 of the embodiment of the present invention can include the first base cross members 1, the
Parts are being carried out vibration examination by two base cross members 2, the first top longitudinal beam 3, the second top longitudinal beam 4 and multiple bolts 5
When testing, parts to be tested can be fixed on shake table 200 by vibration test fixture 100, shake table 200 can vibrate
To test performance when parts to be tested vibrate.
As depicted in figs. 1 and 2, the first base cross members 1 and the second base cross members 2 can be fixed on shake table 200, and first
Base cross members 1 can in X direction be arranged in parallel with the second base cross members 2, and the first base cross members 1 and the second base cross members 2 it
Between relative distance it is adjustable (that is, in the Y direction apart from adjustable).
Specifically, can be with arranged for interval multiple threaded locating hole along Y-direction on shake table 200, Y-direction can be with X-direction
Vertically, after the distance between the first base cross members 1 and the second base cross members 2 are adjusted to correct position, can be by the first bottom
Crossbeam 1 wears threaded locating hole and is connected with shake table 200 by bolt respectively with the second base cross members 2.Thus, it is possible to realize
Relative distance between one base cross members 1 and the second base cross members 2 is adjustable.
In first top longitudinal beam 3 and the second top longitudinal beam 4 each can with the first base cross members 1 and the second bottom
Crossbeam 2 is connected, and the first top longitudinal beam 3 and the second top longitudinal beam 4 can be respectively positioned on the first base cross members 1 and the second base cross members 2
Top, and the first top longitudinal beam 3 and the second top longitudinal beam 4 height adjustable, i.e. the first top longitudinal beam 3 and the second top longitudinal beam
4 can the Z-direction movement along Fig. 1.
First top longitudinal beam 3 and the second top longitudinal beam 4 can be arranged in parallel along Y-direction, and the first top longitudinal beam 3 and second
Relative distance between top longitudinal beam 4 is adjustable (that is, in X-direction apart from adjustable).Specifically, the first top longitudinal beam 3 and the second top
Portion's longeron 4 can in X direction be slided in the first base cross members 1 with the second base cross members 2 relative to two base cross members, from
And make the relative distance between the first top longitudinal beam 3 and the second top longitudinal beam 4 adjustable.
A part of bolt 5 can wear the first base cross members 1, and a part of bolt 5 can wear the second bottom
Crossbeam 2, while bolt 5 can stretch out corresponding bottom transverse with the threaded connection of corresponding base cross members to change bolt 5
The length of beam, so as to when parts to be tested are placed on shake table 200, bolt 5 can clamp to be measured in the Y direction
Examination parts, make parts to be tested fix in the Y direction.
When vibration test is carried out to parts, parts to be tested can be placed on shake table 200 in advance, then by
One base cross members 1 and the second base cross members 2 are respectively placed in the both sides of parts Y-direction to be tested, by the first top longitudinal beam 3 and
Two top longitudinal beams 4 are respectively placed in the both sides of parts X-direction to be tested, and the first top longitudinal beam 3 is distinguished with the second top longitudinal beam 4
Positioned at the top of parts to be tested.
By adjusting the distance between the first base cross members 1 and the second base cross members 2, and stretched by changing bolt 5
Go out the length of correspondence base cross members, parts to be tested can be made to be positioned bolt 5 in the Y direction and be fixedly clamped.
By adjusting the distance between the first top longitudinal beam 3 and the second top longitudinal beam 4, and by changing the first top longitudinal beam
3 and second the distance between the top longitudinal beam 4, the first top longitudinal beam 3 and the second top longitudinal beam 4 side edge relative to each other can be made
X-direction clamps middle parts to be tested, and parts to be tested can be made to be fixed in X-direction.
Meanwhile, by changing the height of the first top longitudinal beam 3 and the second top longitudinal beam 4, can make the first top longitudinal beam 3 and
The bottom surface of the second top longitudinal beam 4 up compresses the part that the middle part of parts to be tested is stretched out in X direction jointly, so as to make treating
Test parts are fixed in Z-direction.
Vibration test fixture 100 according to embodiments of the present invention, the first of distance between being adjusted by setting
Base cross members 2 of base cross members 1 and second, and set bolt 5 in the first base cross members 1 and the second base cross members 2, can be with
Various shapes and the parts to be tested of size are made to be fixed in the Y direction.By set can adjust height and each other away from
From the first top longitudinal beam 3 and the second top longitudinal beam 4, the parts to be tested of various shapes and size can be made in X-direction and Z
Direction is fixed.Thus, vibration test fixture 100 can make the parts to be tested of various shapes and size mutually orthogonal
X, Y, Z are fixed in tri- directions, without redesigning vibration test fixture 100 according to parts shape to be tested, are improve
Versatility, reduces person works' amount, is easy to the carrying out of vibration test.
Preferably, as shown in figure 1, in the Y direction, can be corresponding with the second base cross members 2 in the first base cross members 1 respectively
Two connecting brackets 6 are set, and the first top longitudinal beam 3 can be connected with two connecting brackets 6.In X-direction and the first top longitudinal beam 3
Position separately can be correspondingly arranged another two connecting bracket 6 in the first base cross members 1 and the second base cross members 2 respectively, the
Two top longitudinal beams 4 can be connected with another two connecting bracket 6.
First top longitudinal beam 3 and the second top longitudinal beam 4 can be adjusted from the height in connecting bracket 6, so that first
The top longitudinal beam 4 of top longitudinal beam 3 and second can be slided relative to connecting bracket 6 in Z-direction.Connecting bracket 6 can be in correspondence
Base cross members on slided along the length direction of base cross members, i.e., slide in X direction, the first top longitudinal beam 3 and the second top are vertical
Beam 4 can in X direction be slided together with connecting bracket 6, so that the distance between the first top longitudinal beam 3 and the second top longitudinal beam 4
It is adjustable.
In some specific embodiments, as depicted in figs. 1 and 2, connecting bracket 6 can include pedestal 61 and set present
Screw rod 62 on body 61, pedestal 61 can be slidably disposed in base cross members, and screw rod 62 can be located at the top of pedestal 61 simultaneously
Upwardly extended in Z-direction, multiple screw rods 62 can respectively wear the first top longitudinal beam 3 and the second top longitudinal beam 4, the first top is vertical
The top longitudinal beam 4 of beam 3 and second can be moved along screw rod 62 in Z-direction.
Lock nut assembly, the first top longitudinal beam 3 and the second top longitudinal beam 4 can be set between screw rod 62 and top longitudinal beam
When Z-direction moves to suitable height, lock nut assembly can be by the first top longitudinal beam 3 and the second top longitudinal beam 4 in Z side
To fixation.
In some more specific embodiments, as depicted in figs. 1 and 2, lock nut assembly can include upper locking screw
Female 631 and lower locking nut (not shown), upper locking nut 631 can be can be with the screw thread of screw rod 62 with lower locking nut
Connection and the respectively top surface positioned at base cross members and bottom surface, i.e., multiple upper locking nuts 631 can be separately mounted to the first bottom
The top surface of the base cross members 2 of crossbeam 1 and second, multiple lower locking nuts can be separately mounted to the first base cross members 1 and the second bottom
The bottom surface of portion's crossbeam 2.
Thus, upper locking nut 631 and lower locking nut can clamp the first top and indulge along Z-direction in upper and lower both sides respectively
The top longitudinal beam 4 of beam 3 and second, prevents the first top longitudinal beam 3 and the second top longitudinal beam 4 from being moved along Z-direction relative to screw rod 62.
In some more specific embodiments, as shown in figure 1, pedestal 61 can be inverted " u "-shaped, the seat of " u "-shaped
The bottom surface of body 61 can install slide rail 611, and two two ends of side of the pedestal 61 of " u "-shaped can be respectively arranged with toward each other
The slide rail 611 of extension, the first base cross members 1 and the second base cross members 2 can be provided with chute along two sides of Y-direction
11, slide rail 611 is slidably disposed in chute 11, consequently facilitating mounting bracket is relative to the first base cross members 1 and the second bottom
Portion's crossbeam 2 is slided.
More specifically, as depicted in figs. 1 and 2, can in each in the first top longitudinal beam 3 and the second top longitudinal beam 4
To be provided with the multiple screw holes 31 extended along top longitudinal beam length direction, i.e., in the first top longitudinal beam 3 and the second top longitudinal beam 4
Each on multiple screw holes 31 can extend along Y-direction, each two screw rod 62 can in X direction be corresponded to and wear screw hole
31, the first top longitudinal beam 3 or the second top longitudinal beam 4 is arranged on screw rod 62, wear the first top longitudinal beam 3 by by screw rod 62
Or second diverse location in top longitudinal beam 4 screw hole 31, can further adjust the first top longitudinal beam 3 and the second top longitudinal beam
The distance between 4.
In some preferred embodiments, as shown in figure 1, during the first top longitudinal beam 3 and the second top longitudinal beam 4 can be
Empty metal side tube, it is possible thereby to mitigate the weight of the first top longitudinal beam 3 and the second top longitudinal beam 4, is easy to the first top longitudinal beam 3
With the assembling of the second top longitudinal beam 4.
Preferably, as shown in figure 1, multiple bolts 5 in the first base cross members 1 can with the second base cross members 2 on
Multiple bolts 5 corresponded on the direction for be orthogonal to base cross members, i.e. multiple positioning spiral shells in the first base cross members 1
Bolt 5 can be corresponded with the multiple bolts 5 in the second base cross members 2 in the Y direction, so that bolt 5 is to be tested
Fixation is more firm in the Y direction for parts.
Preferably, the afterbody of bolt 5 can for positioning end, the i.e. afterbody of bolt 5 can only be against it is to be tested
To clamp parts to be tested on parts, the afterbody of bolt 5 can be arranged with flexible structure, thus it can be prevented that positioning
The pressure that 5 pairs, bolt clamps parts to be tested are excessive and damage parts to be tested.
Specifically, flexible structure can be rubber sleeve, it is possible thereby to buffering bolt 5 pairs clamps parts to be tested
Pressure, prevents 5 pairs of pressure for clamping parts to be tested of bolt excessive and damages parts to be tested.
A specific embodiment of the invention is described with reference to Fig. 1 and Fig. 2.
As depicted in figs. 1 and 2, the vibration test fixture 100 of the embodiment of the present invention can include the first base cross members 1, the
Parts are being carried out vibration examination by two base cross members 2, the first top longitudinal beam 3, the second top longitudinal beam 4 and multiple bolts 5
When testing, parts to be tested can be fixed on shake table 200 by vibration test fixture 100, shake table 200 can vibrate
To test performance when tape test parts vibrate.
First base cross members 1 and the second base cross members 2 can be fixed on shake table 200, and the first base cross members 1 can be with
Second base cross members 2 be arranged in parallel in X direction, and relative distance between the first base cross members 1 and the second base cross members 2 can
Adjust.
A part of bolt 5 can wear the first base cross members 1, and a part of bolt 5 can wear the second bottom
Crossbeam 2, while bolt 5 can stretch out corresponding bottom transverse with the threaded connection of corresponding base cross members to change bolt 5
The length of beam, so as to when parts to be tested are placed on shake table 200, bolt 5 can in the Y direction to be tested zero
The both sides of part clamp parts to be tested, parts to be tested is fixed in the Y direction.
In the Y direction, two connecting brackets can be correspondingly arranged in the first base cross members 1 and the second base cross members 2 respectively
6, the first top longitudinal beam 3 can be connected with two connecting brackets 6.Can be with X-direction and the first top longitudinal beam 3 position separately
Another two connecting bracket 6 is correspondingly arranged in the first base cross members 1 and the second base cross members 2, the second top longitudinal beam 4 can be with respectively
Another two connecting bracket 6 is connected.
Connecting bracket 6 can include pedestal 61 and the screw rod 62 being arranged on pedestal 61, and pedestal 61 can slideably set
Put in base cross members, screw rod 62 can be located at the top of pedestal 61 and be upwardly extended in Z-direction, and multiple screw rods 62 can be worn respectively
If the first top longitudinal beam 3 and the second top longitudinal beam 4, the first top longitudinal beam 3 and the second top longitudinal beam 4 can be along screw rods 62 in Z side
To movement.
Lock nut assembly, the first top longitudinal beam 3 and the second top longitudinal beam 4 can be set between screw rod 62 and top longitudinal beam
When Z-direction moves to suitable height, lock nut assembly can include upper locking nut 631 and lower locking nut (in figure
It is not shown), upper locking nut 631 can be threadedly coupled with screw rod 62 with lower locking nut and be located at base cross members respectively
Top surface and bottom surface, lock nut assembly can fix the first top longitudinal beam 3 with the second top longitudinal beam 4 in Z-direction.
Pedestal 61 can be inverted " u "-shaped, and two two ends of side of the pedestal 61 of " u "-shaped can be respectively arranged with court
The slide rail 611 for extending to each other, the first base cross members 1 and the second base cross members 2 can be provided with along two sides of Y-direction
Chute 11, slide rail 611 is slidably disposed in chute 11, consequently facilitating mounting bracket is relative to the first base cross members 1 and
Two base cross members 2 are slided.
Can be provided with along top longitudinal beam length direction in each in first top longitudinal beam 3 and the second top longitudinal beam 4
Multiple screw holes 31 of extension, by the spiral shell that screw rod 62 is worn diverse location in the first top longitudinal beam 3 or the second top longitudinal beam 4
Rod aperture 31, can further adjust the distance between the first top longitudinal beam 3 and the second top longitudinal beam 4.
First top longitudinal beam 3 and the second top longitudinal beam 4 can be hollow metal side tube, it is possible thereby to mitigate the first top
The weight of the top longitudinal beam 4 of portion's longeron 3 and second, is easy to the assembling of the first top longitudinal beam 3 and the second top longitudinal beam 4.
Multiple bolts 5 in first base cross members 1 can exist with the multiple bolts 5 in the second base cross members 2
It is orthogonal on the direction of base cross members and corresponds, so that bolt 5 is to parts to be tested, and fixation is more firm in the Y direction.
The afterbody of bolt 5 only can be against on parts to be tested to clamp parts to be tested, bolt 5
Afterbody can be arranged rubber sleeve, thus it can be prevented that bolt 5 pairs clamp parts to be tested pressure it is excessive and damage
Parts to be tested.
Vibration test fixture 100 according to embodiments of the present invention, can make the parts to be tested of various shapes and size
Fixed in mutually orthogonal tri- directions of X, Y, Z, without redesigning vibration test folder according to parts shape to be tested
Tool 100, improves versatility, reduces person works' amount, is easy to the carrying out of vibration test.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office
What combined in an appropriate manner in one or more embodiments or example.Additionally, those skilled in the art can say this
Different embodiments or example described in bright book are engaged and combined.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of vibration test fixture, it is characterised in that including:
First base cross members and the second base cross members, first base cross members and second base cross members are suitable to be fixed on shakes
On dynamic platform, first base cross members and second base cross members be arranged in parallel and relative distance is adjustable;
First top longitudinal beam and the second top longitudinal beam, each in first top longitudinal beam and second top longitudinal beam are equal
It is connected and height adjustable with first base cross members and second base cross members, first top longitudinal beam and described second
Top longitudinal beam be arranged in parallel and relative distance is adjustable;
Multiple bolts, bolt described in a portion wears first base cross members and a remaining part is described
Bolt wears second base cross members, and it is described fixed to change that the bolt is threadedly coupled with corresponding base cross members
Position bolt stretches out the length of correspondence base cross members.
2. vibration test fixture according to claim 1, it is characterised in that first top longitudinal beam and second top
Each in portion's longeron is connected by connecting bracket with first base cross members and second base cross members, and described first
The height adjustable of each the relatively described connecting bracket in top longitudinal beam and second top longitudinal beam, the connecting bracket can
Length direction along base cross members in corresponding base cross members is slided.
3. vibration test fixture according to claim 2, it is characterised in that the connecting bracket includes:
Pedestal and the screw rod being arranged on the pedestal, the pedestal are slidably disposed in base cross members, and the screw rod is worn
If top longitudinal beam, lock nut assembly is set between the screw rod and top longitudinal beam.
4. vibration test fixture according to claim 3, it is characterised in that the lock nut assembly includes:
Upper locking nut and lower locking nut, the upper locking nut and the lower locking nut be connected with the screw flight and
Top surface and the bottom surface of base cross members are located at respectively.
5. vibration test fixture according to claim 3, it is characterised in that the pedestal is inverted " u "-shaped, the seat
The two ends of body are respectively arranged with the slide rail for extending towards one another, and chute is provided with base cross members, and the slide rail slideably sets
Put in the chute.
6. vibration test fixture according to claim 3, it is characterised in that first top longitudinal beam and second top
The multiple screw holes extended along top longitudinal beam length direction are provided with each in portion's longeron.
7. vibration test fixture according to claim 1, it is characterised in that first top longitudinal beam and second top
Portion's longeron is hollow metal side tube.
8. vibration test fixture according to claim 1, it is characterised in that the multiple in first base cross members is described
Bolt is corresponded with the multiple bolts in second base cross members on the direction for be orthogonal to base cross members.
9. vibration test fixture according to claim 1, it is characterised in that the afterbody of the bolt is positioning end,
The afterbody of the bolt is arranged with flexible structure.
10. vibration test fixture according to claim 9, it is characterised in that the flexible structure is rubber sleeve.
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CN201611063758.5A CN106768754B (en) | 2016-11-25 | 2016-11-25 | Vibration test fixture |
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CN113176057A (en) * | 2021-04-20 | 2021-07-27 | 上海仪器仪表自控***检验测试所有限公司 | Universal vibration test fixture |
CN114112272A (en) * | 2021-12-06 | 2022-03-01 | 信阳星宇航天标准件制造有限公司 | Seal pin quick-release lock vibration test tool and installation method thereof |
CN114112272B (en) * | 2021-12-06 | 2024-04-05 | 信阳星宇航天标准件制造有限公司 | Vibration test tool for quick-release lock of sealing pin and mounting method of vibration test tool |
CN114383798A (en) * | 2021-12-24 | 2022-04-22 | 中通客车股份有限公司 | Automobile part vibration test tool and test device |
CN114383798B (en) * | 2021-12-24 | 2024-04-05 | 中通客车股份有限公司 | Vibration test tool and test device for automobile parts |
CN114314256A (en) * | 2022-01-11 | 2022-04-12 | 富士通(广东)电梯产业集团有限公司 | Elevator four-rail crossing structure and using method thereof |
CN114314256B (en) * | 2022-01-11 | 2023-09-12 | 富士通(广东)电梯产业集团有限公司 | Four-rail crossing structure of elevator and using method thereof |
WO2024000409A1 (en) * | 2022-06-30 | 2024-01-04 | 嘉兴量创科技有限公司 | Clamp used for vibration testing of electronic gauge |
CN116839651B (en) * | 2023-08-30 | 2023-11-17 | 沈阳国仪检测技术有限公司 | System for be used for testing pipeline detector spare part |
CN116839651A (en) * | 2023-08-30 | 2023-10-03 | 沈阳国仪检测技术有限公司 | System for be used for testing pipeline detector spare part |
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