CN105987800B - A kind of vibration test fixture and its installation method - Google Patents
A kind of vibration test fixture and its installation method Download PDFInfo
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- CN105987800B CN105987800B CN201510055394.5A CN201510055394A CN105987800B CN 105987800 B CN105987800 B CN 105987800B CN 201510055394 A CN201510055394 A CN 201510055394A CN 105987800 B CN105987800 B CN 105987800B
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Abstract
The invention discloses a kind of vibration test fixture and its installation method, fixture includes general frame, and test item is mounted on general frame, and general frame is using being open girder structure on top, front, left part and right part four direction.General frame includes the base assembly of bottom support being provided for test item, and the back element for providing back-supported for test item on base assembly top is arranged.Test item is fixedly connected with base assembly, back element.Vibration test fixture further includes the damping device being arranged in base assembly, back element, and test item is fixedly connected by damping device with base assembly, back element.The present invention can overcome the technical problem that materials'use existing for existing vibration test fixture is more, intensity is not high, rigidity is insufficient, damping property is poor.
Description
Technical field
The present invention relates to test tool fields, more particularly, to a kind of fixture applied to vibration test and its installation side
Method.
Background technology
In carrying out vibration test test process, typically test article is securely fixed in by vibration test fixture and is shaken
On the work top of dynamic platform, and the vibrational energy of shake table is transmitted to test item, therefore the quality of vibration test fixture is directly closed
It is the quality of vibration test.Fixture off quality during the test, because conduct energy is easy distortion, leads to fixture
The vibration magnitude of upper each point differs greatly, that is to say, that the uniformity of fixture is very poor.In the test frequency range of vibration test usually
There are multistage resonance, vibration control is extremely difficult.And some fixtures be easy to cause the waste of material because quality is excessive.Meanwhile
The work top area that vibration mechine is also frequently encountered in vibration test is too small, and the base area of test item is more than instead
The case where testing stand footprint.At this point, the surrounding of product to be tested stretches out testboard table top, it is highly detrimental to vibration test folder
Has the installation of tooling.Therefore, the test article for how allowing volume excessive is mounted on smaller testboard table top, and is vibrated
Test fixture tooling can possess larger resonant frequency and rigidity in vibration processes, just be set as current vibration test fixture
One difficult point of timing.
In the prior art, it is related with the present patent application to there are following several documents.
Document 1 is that Zhuzhou Nancheshidai Electric Co., Ltd applied on 04 28th, 2011, and in 2012 10
The moon 31 was announced, and publication No. is the Chinese invention patent of CN102759437A《A kind of vibration test fixture and its installation method》It should
Patent of the present invention discloses a kind of vibration test fixture and its installation method, is applied to the vibration examination of test item suspension mounting means
It tests, including：General frame and crossbeam, the general frame of column and girder composition, general frame lower part is connected to by chassis to shake
On dynamic platform table top, test product is suspended on the inside of general frame by crossbeam, and T-type one is provided on the girder on general frame top,
T-slot two is arranged in the lower part of crossbeam, and test product is connected by T-bolt with the T-slot two of crossbeam lower part, and the both ends of crossbeam pass through T
Type bolt is connected with the T-slot one on girder top.The grip device and its installation method allow test product to be done in general frame
360 ° of rotations, versatility is extremely strong, cost, small, light weight, rigidity is good, easy for installation, work efficiency is high, and resonates
Frequency is higher, has stronger practicability.
Document 2 is to be applied on November 22nd, 2012 by Avic Huadong Photoelectric Co., Ltd., and on 06 05th, 2013
Bulletin, notification number are the Chinese utility model patent of CN202974610U《A kind of vibration tong device》.The utility model patent
A kind of vibration tong device is disclosed, including vibrating bottom plate and fixed plate, fixed plate are located on vibrating bottom plate, fixed plate both sides are equal
Equipped with the support plate being connected with vibrating bottom plate, fixed plate is equipped with the stationary window for fixed module.Vibrating bottom plate and solid
Fixed board and support plate are connected through a screw thread and are welded and fixed together simultaneously between any two.By vibrating bottom plate and support plate with
And fixed plate combines to form a vibration entirety, shock resistance is good, can realize multimode while vibrate.Meanwhile module dismounting side
Just, time saving and energy saving, reduce design cost.
Document 3 is to be applied on 09 17th, 2003 by Chongqing Zongshen Technology Development ＆ Research Co., Ltd, and in 2004
December 22 was announced, and notification number is the Chinese utility model patent of CN2665695U《Damping clamp for engine detection test》.
It should be used for the fixture of clamped and suspended engine the utility model is related to a kind of damping clamp for engine detection test.The bottom of including
Plate is fixed on the left and right fixing bracket for installing suspension engine on bottom plate.The upper plate that bottom plate is mutually parallel by two
It is formed with lower plate, upper plate is located above lower plate, is connected with bolt, nut therebetween, and is provided between upper and lower bottom plate
Separator is buffered, cushion rubber bumper is also cased on bolt, between upper plate and nut, which can make it each
Collision shock energy between component is largely slowed down, while also reducing the work noise of fixture.
Although three of the above scheme is widely used at present, disadvantage is also obvious：
（1）Document 1 uses comprehensive cube frame, and test item is put into frame and carries out vibration test, passes through frame
Test item is limited multi-facetedly so that test article increases stability in vibration, but more to the use of material, and fixture is made
It is excessively solid, and energy is transmitted by more beams, increases resonance point.Meanwhile it also resulting in frame and enough cannot welding
Sealing is connect, is needed after being put into test product, could be installed mounting rail using bolt at top or by the way of chock clamping
Fixed test item.Therefore, cause the position that bolt is tightened often to occur loose situation of shaking during vibration test, largely effect on
The intensity of vibration test fixture tooling.Document 1 is applied on the test item of same size, using cube for wrapping test item
Body frame form, the weight of vibration test fixture tooling is clearly more than the weight of test item, while causing waste of material,
Increase the vibrational energy of vibration mechine needs.In this scenario, energy transmission pass through number of parts it is more, and part with
The weld of part linking is the more weak link of vibration test fixture, the as fault point of vibration test fixture, therefore vertical
Fault point in cube tooling scheme is more.
（2）The form that document 2 is supported using bottom plate and fixed plate, this vibration tong use plate structure, plank frame
Intensity and rigidity it is all relatively low, although material is saved, intensity is not high, therefore is suitable only for the lighter module of progress and shakes
Dynamic test.Since the rigid of plate is not high, this clamp fixture easily deforms upon when in face of strenuous exercise.
（3）Document 3 still uses the form of bottom plate backboard and back-supported, although bottom uses glissando, this
Protect test item protected from the impact of vibration test energy to a certain extent, but the back of said program tooling and on
Portion is rigidly poor, in horizontal vibration experiment, the glissando of lower part can be made to play certain amplification.Simultaneously as not having
Have and take glissando at back, therefore can not achieve the effect that reducing vibration in horizontal vibration.
Invention content
In view of this, the purpose of the present invention is to provide a kind of vibration test fixture and its installation method, can overcome existing
There is existing for vibration test fixture the technical problem that materials'use is more, intensity is not high, rigidity is insufficient, damping property is poor.
In order to achieve the above-mentioned object of the invention, the present invention specifically provides a kind of technic relization scheme of vibration test fixture,
Vibration test fixture, including：General frame, test item be mounted on the general frame on, the general frame use top,
It is open girder structure on front, left part and right part four direction.The general frame includes being provided for the test item
The base assembly of bottom support, and the back group for providing back-supported for the test item on the base assembly top is set
Part.
Preferably, the vibration test fixture further includes the damping device being arranged in the base assembly, back element,
The test item is fixedly connected by the damping device with the base assembly, back element.
Preferably, the base assembly includes intermediate beam, girder, crossbeam and cant beam, is made of several girders
Crisscross rectangular frame structure in horizontal plane, several intermediate beams are arranged between the girder, for described
Rectangular frame structure is reinforced.The crossbeam runs through the rectangle being made of the girder with the direction for being parallel to lateral girder
Frame structure, and extend along its length to left and right two outside of the rectangular frame structure.The cant beam is arranged in the master
Between the end of beam and the end of the crossbeam, the crossbeam that extends for opposite left and right two outside of rectangular frame structure into
Row is fixed.
Preferably, the back element includes：
Several root bottom parts are fixed on the girder and are cross-linked the column at place with crossbeam；
Top beam at the top of the column is set；
Several diagonal braces being arranged between the top beam and the left and right sides and back of the base assembly.
Preferably, the girder is made of channel steel, and the girder described in two is mutually parallel, is horizontally installed on the pedestal group
The front end of part and rearmost end, and be open outwardly, mutually backwards to placement.Other two or more the girders are mutually parallel, indulge
Be arranged between two transverse directions, parallel girder to ground, and with lateral girder vertical connection, be located at left end and most right
The girder opening of two longitudinal directions at end is inwardly.Several crossbeams are in laterally that a row are arranged between longitudinal girder and two
Side intersects vertically with longitudinal girder, and positioned at plane and institute where the rear end of the base assembly and the base assembly
The intersection of plane where stating back element.Several intermediate beams in parallel to each other, be placed across by longitudinal girder, be located at
In the region that the lateral girder and crossbeam of front end is constituted, the intermediate beam intersects vertically with longitudinal girder.Four cant beams
End respectively with the end of the end of main beam of the base assembly front and rear sides transverse direction and the crossbeam be connected.The bottom
Holder assembly further includes two boss being symmetrically disposed on the outside of longitudinal girder, the height of the boss with it is described in
Between depth of beam it is concordant.
Preferably, two or more the columns along vertical in the direction of the base assembly, respectively with the crossbeam
It intersects vertically with longitudinal girder.The top beam is placed across the top of the base assembly, and the top of the column is described
The back of top beam connects with the end of the column, and the side of the top beam is concordant with the side of the column.Three or more
Diagonal brace one end is connected to the junction of the column and the top beam, and the other end is connected to the transverse direction of longitudinal girder and rearmost end
Girder junction.One end of other two diagonal braces is connected to the junction of the crossbeam and the cant beam, other end connection
In the junction of the two root posts and the top beam both ends of the left and right sides.
Preferably, in the intermediate beam and boss, and on the lateral girder of the base assembly front end
Damping device mounting hole is provided in array-like evenly.
Preferably, damping device mounting hole is equally spacedly provided on the top beam, the damping device mounting hole
Position is adapted to the back mounting height of the test item.
Preferably, the bottom of the base assembly is provided with mounting hole, and the mounting hole is in the intermediate beam, girder, cross
The bottom of beam and cant beam is equally arranged.The intermediate beam, longitudinal girder, the crossbeam between longitudinal girder, with
And the mounting hole on the lateral girder of the base assembly front relative to the cant beam, be located at the rectangular frame knot
The crossbeam on the outside of longitudinal girder at left and right sides of structure, and positioned at the base assembly rear portion lateral girder distribution more
It is intensive.
Preferably, the general frame uses integral channel steel welding construction, the intermediate beam, girder, crossbeam, cant beam and top
Beam is all made of the C-shaped channel steel for being internally provided with reinforcing rib, inner surface of the reinforcing rib scarfweld in the C-shaped channel steel.
Preferably, the transverse width of the base assembly be not less than the test item transverse width, the base assembly,
It is connected using bolt, nut mode between back element and the damping device, the bottom of the vibration test fixture is mounted on
On the table top of vibration mechine.
In addition the present invention also specifically provides a kind of technic relization scheme of vibration test fixture installation method, including following
Step：
The bottom of the vibration test fixture is mounted on the table top of vibration mechine；
Test item is mounted on the general frame being made of base assembly and back element, the test item and the bottom
It is fixedly connected by the damping device between holder assembly, back element.
Preferably, when the footprint of the vibration mechine is more than the bottom area certain value of the vibration test fixture
When, the mounting hole by being distributed in the base assembly bottom is fixedly connected with the table top of the vibration mechine.
Preferably, when the footprint of the vibration mechine is less than the bottom area certain value of the vibration test fixture
When, by the intermediate beam, longitudinal girder, the crossbeam between longitudinal girder, and before the base assembly
Comparatively intensive mounting hole is distributed on the lateral girder in portion to be fixedly connected with the table top of the vibration mechine.
The vibration test fixture and its installation method provided by implementing aforementioned present invention, has the advantages that：
（1）The present invention uses the general frame girder structure of open type, the fixture relative to comprehensive cube packaging type
Tool structure has many advantages, such as that structural rigidity is good, small, light-weight, intensity is high, easy to use；
（2）For vibration test fixture of the present invention during installation and experiment, it is less to vibrate the number of parts passed through, because
This resonance point is less, whole to have higher resonant frequency, has the versatility that can install a variety of different size of test products,
It is highly suitable for the too small situation of vibration mechine table top；
（3）Vibration test fixture of the present invention is provided with damping device in bottom and back, can be horizontal and vertical two
It protects test item protected from the impact of vibration test energy on a direction, while the vibration of vibration mechine needs can be reduced
Energy.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described.It should be evident that the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other embodiments are obtained according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of specific implementation mode of vibration test fixture of the present invention；
Fig. 2 is the structural schematic diagram of base assembly in a kind of specific implementation mode of vibration test fixture of the present invention；
Fig. 3 is the structural schematic diagram of general frame in a kind of specific implementation mode of vibration test fixture of the present invention；
Fig. 4 is a kind of bottom substance schematic diagram of specific implementation mode of vibration test fixture of the present invention；
Fig. 5 is a kind of structural schematic diagram of specific implementation mode middle girder of vibration test fixture of the present invention；
In figure：1- general frames, 2- damping devices, 3- intermediate beams, 4- girders, 5- crossbeams, 6- test items, 7- cant beams, 8-
Column, 9- diagonal braces, 10- top beams, 11- mounting holes, 12- damping device mounting holes, 13- boss, 14- reinforcing ribs, 15-C type groove steel,
16- base assemblies, 17- back elements.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention carries out clear, complete description.Obviously, described embodiment is only
Only it is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
The every other embodiment that art personnel are obtained without creative efforts belongs to the model that the present invention protects
It encloses.
As shown in attached drawing 1 to attached drawing 5, the specific embodiment of vibration test fixture installation method of the present invention is given, below
The invention will be further described with reference to the drawings and specific embodiments.
As shown in Fig. 1, a kind of specific embodiment of vibration test fixture, including：General frame 1, test item 6 are mounted on
On general frame 1, general frame 1 is using being open girder structure on top, front, left part and right part four direction.
General frame 1 includes the base assembly 16 of bottom support being provided for test item 6, and setting is subject on 16 top of base assembly
Product 6 provide the back element 17 of back-supported.Test item 6 is fixedly connected with base assembly 16, back element 17.As the present invention
A kind of preferable specific embodiment, vibration test fixture further include the damping dress being arranged in base assembly 16, back element 17
2 are set, test item 6 is fixedly connected by damping device 2 with base assembly 16, back element 17.
Base assembly 16 further comprises intermediate beam 3, girder 4, crossbeam 5 and cant beam 7, is made of in water several girders 4
Crisscross rectangular frame structure in plane, several intermediate beams 3 are arranged between girder 4, for rectangular frame structure
It is reinforced.Crossbeam 5 runs through the rectangular frame structure being made of girder 4 with the direction for being parallel to lateral girder 4, and along length
Direction extends to left and right two outside of rectangular frame structure.Cant beam 7 is arranged between the end of girder 4 and the end of crossbeam 5,
The crossbeam 5 extended for left and right two outside of opposite rectangular frame structure is fixed.
Girder 4 is made of channel steel, and two girders 4 are mutually parallel, are horizontally installed on the front end of base assembly 16 and last
End, and be open outwardly, mutually backwards to placement.Two or more girders 4 are mutually parallel, it is lateral, parallel to be longitudinally disposed at two
Girder 4 between, and with lateral 4 vertical connection of girder, the girder 4 for being located at two longitudinal directions of left end and right end is opened
Mouth is inwardly.Several crossbeams 5 are laterally arranged between longitudinal girder 4 in a row and both sides, phase vertical with longitudinal girder 4
It hands over, and positioned at the phase of plane and plane where the back element where the rear end of base assembly 16 and the base assembly
At friendship.Several intermediate beams 3 are mutually parallel, it is equally spaced from each other, be placed across by longitudinal girder 4, positioned at the cross of front end
To girder 4 and crossbeam 5 constitute region in, intermediate beam 3 with longitudinal direction girder 4 intersect vertically.The end of four cant beams 7
It is connected respectively with the end of the girder 4 of 16 front and rear sides of base assembly transverse direction and the end of crossbeam 5.Base assembly 16 also wraps
Two boss 13 for being symmetrically disposed in longitudinal 4 outside of girder are included, the height of boss 13 is concordant with the height of intermediate beam 3.
As shown in Fig. 2, as a kind of typical specific embodiment of the present invention, all girder constructions are horizontal positioned, will
Quantity is two girders 4, is mutually parallel, direction is transversely separately positioned on front end and the rearmost end of base assembly 16,
And it is open outwardly, mutually backwards to placement.The girder 4 for being again three by quantity is mutually parallel, direction is in be longitudinally disposed at two
Between a horizontally-parallel girder 4, with lateral 4 vertical connection of girder, lateral 4 both ends of girder and middle part respectively place one
Longitudinal girder 4, the opening of girder 4 in two longitudinal directions of left end and right end is inwardly.Then the cross for being four by quantity
Beam 5, direction in laterally, line up an array and be placed between the girder 4 of three longitudinal directions and both sides, it is vertical with longitudinal girder 4
Rear portion is leaned in intersection, position base assembly 16.Then the intermediate beam 3 for being several by quantity, direction is in laterally, mutually uniformly
It is arranged in parallel in the region of girder 4 and crossbeam 5 composition of longitudinal girder 4 and front end transverse direction, intermediate beam 3 and longitudinal direction
Girder 4 intersect vertically.Then the cant beam 7 for being four by quantity connects lateral 4 one end of girder and longitudinal direction end to end
The outermost end of the crossbeam 5 in 4 outside of girder.Two boss 13 are positioned symmetrically in 4 outside of longitudinal girder, and with intermediate beam 3
Height it is concordant.Damping device mounting hole 12 is equably arranged in all intermediate beams 3 and boss 13, Yi Jiqian in array-like
It holds on lateral girder 4.When test item 6 be seriation test article when, can by adjust damping device 2 installation site come
The product of fixed different bottom mounting apertures.
Back element 17 further comprises：Several root bottom parts are fixed on girder 4 and are cross-linked the column 8 at place with crossbeam 5；If
The top beam 10 at 8 top of column is set, top beam 10 can install damping device 2, these damping devices 2 and 6 upper back of test item
Mounting hole is connected；Several diagonal braces 9 being arranged between top beam 10 and the left and right sides and back of base assembly 16 use
The 9 skewed horizontal load posture in standing (qigong) column 8 of diagonal brace and top beam 10 of the left and right sides and back.Two or more columns 8 are along vertical in pedestal
The direction of component 16 intersects vertically with crossbeam 5 and longitudinal girder 4 respectively.Top beam 10 is placed across the upper of base assembly 16
Side, the back on the top of column 8, top beam 10 connect with the end of column 8, and the side of top beam 10 is concordant with the side of column 8.Three
9 one end of diagonal brace more than root is connected to the junction of column 8 and top beam 10, and the other end is connected to longitudinal girder 4 and rearmost end
Lateral girder 4 junction.One end of other two diagonal braces 9 is connected to the junction of crossbeam 5 and cant beam 7, and the other end connects
It is connected on the junction of the two root posts 8 and 10 both ends of top beam of the left and right sides.
As shown in Fig. 3, as a kind of typical specific embodiment of the present invention, the column 8 for being three by quantity, along vertical
To direction, intersect vertically with the girder 4 of crossbeam 5 and longitudinal direction.Then a top beam 10 is placed across the upper of base assembly 16
Side, the top of three root posts 8, the back side and the end face of column 8 of top beam 10 are affixed, and side is concordant with the side of column 8.Then will
Three 9 one end of diagonal brace are connected to the joint of three root posts 8 and top beam 10, the other end connect the girders 4 of three longitudinal directions with it is last
The intersection of the lateral girder 4 at end.One end of two diagonal braces 9 is separately connected to the junction of crossbeam 5 and cant beam 7 again, it is another
End crosses together with the two root posts 8 of both sides and the both ends of top beam 10.Damping device mounting hole 12 is equidistantly arranged in top
On beam 10, to adapt to the back mounting height of different test items 6.
As shown in attached drawing 2 and attached drawing 3, in intermediate beam 3 and boss 13, and positioned at the lateral of 16 front end of base assembly
Damping device mounting hole 12 is equably provided on girder 4 in array-like, can make vibration test fixture that different size is installed
The test item 6 of different height is suitable for the product of seriation difference mounting hole position, accomplishes the general of vibration test fixture tooling
Property.Damping device mounting hole 12 is equally spacedly provided on top beam 10, the position of damping device mounting hole 12 is adapted to be tested
The back mounting height of product 6.Damping device 2 is mounted on the damping device mounting hole 12 of the crossbeam 5 of base assembly 16 and back
On the damping device mounting hole 12 of the top beam 10 of component 17, carried out by bolt with the bottom of test item 6 and back mounting hole position
Connection.
As shown in Fig. 4, the bottom of base assembly 16 is provided with mounting hole 11, and mounting hole 11 is in intermediate beam 3, girder 4, cross
The bottom of beam 5 and cant beam 7 is equally arranged.Intermediate beam 3, longitudinal girder 4, the crossbeam 5 between longitudinal girder 4,
And the distribution of mounting hole 11 on the lateral girder 4 of 16 front of base assembly is comparatively intensive, and cant beam 7, be located at
The crossbeam 5 in longitudinal 4 outside of girder at left and right sides of rectangular frame structure, and the lateral master positioned at 16 rear portion of base assembly
The distribution of mounting hole 11 on beam 4 is comparatively loose.
As shown in Fig. 5, general frame 1 use integral channel steel welding construction, including intermediate beam 3, girder 4, crossbeam 5, tiltedly
Girder construction including beam 7 and top beam 10, which is all made of, to be internally provided with the C-shaped channel steel 15 of reinforcing rib 14 and is process, and reinforcing rib 14 is embedding
It is welded in the inner surface of C-shaped channel steel 15, to increase the structural strength of girder 4.Reinforcing rib 14 and boss 13 are also process by steel plate.
The transverse width of base assembly 16 is not less than the transverse width of test item 6, base assembly 16, back element 17 and damping device 2
Between connected using bolt, nut mode, the bottom of vibration test fixture is mounted on the table top of vibration mechine.
One that the vibration test fixture of the above-mentioned specific embodiment description of the present invention uses channel steel and steel plate to be welded is whole
Body frame structure, in the integral frame structure, it is preceding, left and right be open type structure, and mainly by bottom assembly welding structure and the back of the body
Portion's support construction composition.It is installed with and subtracts in the form of all being connected using bolt and nut in bottom assembly welding structure and back-supported structure
Shake device 2.Test item 6 can be connected in bottom and upper back with the installation interface of damping device 2, vibration test fixture work
The bottom of dress is mounted on the table top of vibration mechine.Base assemblies 16 mainly take out main rectangular frame structure by girder 4,
It is reinforced again in centre by intermediate beam 3.The transverse width of vibration test fixture bottom needs laterally wide not less than test item 6
Degree will fix the crossbeam 5 for controlling and extending outward before and after cant beam 7.Column 8 intersects two-by-two with longitudinal girder 4 and crossbeam 5, by
Damping device 2 can be installed on the top beam 10 that column 8 supports, damping device 2 is connected with the mounting hole of 6 upper back of test item, and
Using the 9 skewed horizontal load posture in standing (qigong) column 8 of diagonal brace and top beam 10 of the left and right sides and behind.The vibration test fixture tooling designed in this way
, rigidity big, simple in structure, small volume high with intensity, resonance point be less, it is versatile, save many advantages, such as material.
A kind of specific embodiment of above-mentioned vibration test fixture installation method, includes the following steps：
The bottom of vibration test fixture is mounted on the table top of vibration mechine；
Test item 6 is mounted on the general frame 1 being made of base assembly 16 and back element 17, test item 6 and bottom
It is fixedly connected by damping device 2 between holder assembly 16, back element 17.
When the footprint of vibration mechine is more than the bottom area certain value of vibration test fixture, by being distributed in bottom
The mounting hole 11 of 16 bottom of holder assembly is fixedly connected with the table top of vibration mechine.
When the footprint of vibration mechine is less than the bottom area certain value of vibration test fixture, such as in attached drawing 4
The vibration mechine table top of shown dotted line size only needs the table top of vibration mechine being placed on as of figure 4
The position of dotted rectangle by intermediate beam 3, longitudinal girder 4, the crossbeam 5 between longitudinal girder 4, and is located at
It is distributed comparatively intensive mounting hole 11 on the lateral girder 4 of 16 front of base assembly and the table top of vibration mechine is fixed
Connection.Connected by the table top of the Kong Weiyu vibration mechines of close quarters, carries out vibration test fixture when vibration test
Tooling can have larger resonant frequency and rigidity.
When the mounting hole position of test item 6 or vibration mechine is different from the adaptive type of some standards, vibration test folder
Tool can be reequiped separately again in the follow-up process is welded with some mounting rails.
By implementing the vibration test fixture and its installation method of specific embodiment of the invention description, following skill can be reached
Art effect：
（1）The vibration test fixture of specific embodiment of the invention description uses the general frame girder structure of open type, phase
For the clamp fixture structure of comprehensive cube packaging type, with structural rigidity is good, small, light-weight, intensity is high, uses
The advantages that facilitating；
（2）Pass through the vibration test fixture of application specific embodiment of the invention description, during installation and experiment, vibration
The number of parts passed through is less, therefore resonance point is less, whole to have higher resonant frequency, is suitable for tandem product
Different mounting hole positions, the versatilities of a variety of different size of test items can be installed by having, and be highly suitable for vibration mechine platform
Face is too small, and the case where cause fixture and test item to spread from the table；
（3）The vibration test fixture of specific embodiment of the invention description is provided with damping device, energy in bottom and back
It is enough to protect test item protected from the impact of vibration test energy in horizontal and vertical both direction, while vibration can be reduced
The vibrational energy that testing stand needs.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form.Though
So the present invention has been disclosed with preferred embodiment as above, and however, it is not intended to limit the invention.It is any to be familiar with those skilled in the art
Member, in the case where not departing from the Spirit Essence and technical solution of the present invention, all using in the methods and techniques of the disclosure above
Appearance makes many possible changes and modifications to technical solution of the present invention, or is revised as the equivalent embodiment of equivalent variations.Therefore,
Every content without departing from technical solution of the present invention is made to the above embodiment any simple according to the technical essence of the invention
Modification, equivalent replacement, equivalence changes and modification, still fall within technical solution of the present invention protection in the range of.
Claims (13)
1. a kind of vibration test fixture, it is characterised in that：Including general frame（1）, test item（6）Mounted on the general frame
（1）On, the general frame（1）Using being open girder structure on top, front, left part and right part four direction；
The general frame（1）Including for the test item（6）The base assembly of bottom support is provided（16）, and be arranged at the bottom
Holder assembly（16）Top is the test item（6）The back element of back-supported is provided（17）；The base assembly（16）Including
Intermediate beam（3）, girder（4）, crossbeam（5）And cant beam（7）, by several girders（4）Composition is crisscross in the horizontal plane
Rectangular frame structure, several intermediate beams（3）It is arranged in the girder（4）Between, for the rectangular frame knot
Structure is reinforced；The crossbeam（5）To be parallel to lateral girder（4）Direction run through by the girder（4）The rectangle of composition
Frame structure, and extend along its length to left and right two outside of the rectangular frame structure；The cant beam（7）It is arranged described
Girder（4）End and the crossbeam（5）End between, extend for opposite left and right two outside of rectangular frame structure
Crossbeam（5）It is fixed.
2. vibration test fixture according to claim 1, it is characterised in that：The vibration test fixture further includes that setting exists
The base assembly（16）, back element（17）On damping device（2）, the test item（6）Pass through the damping device（2）
With the base assembly（16）, back element（17）It is fixedly connected.
3. vibration test fixture according to claim 2, it is characterised in that：The base assembly（16）Transverse width not
Less than the test item（6）Transverse width, the base assembly（16）, back element（17）With the damping device（2）It
Between connected using bolt, nut mode, the bottom of the vibration test fixture is mounted on the table top of vibration mechine.
4. according to claim 1,2 or 3 any one of them vibration test fixtures, which is characterized in that the back element（17）
Including：
Several root bottom parts are fixed on the girder（4）With crossbeam（5）It is cross-linked the column at place（8）；
It is arranged in the column（8）The top beam at top（10）；
Several are arranged in the top beam（10）With the base assembly（16）The left and right sides and back between diagonal brace
（9）.
5. vibration test fixture according to claim 4, it is characterised in that：The girder（4）It is made of channel steel, two institutes
The girder stated（4）It is mutually parallel, is horizontally installed on the base assembly（16）Front end and rearmost end, and be open outwardly, phase
Mutually backwards to placement；Other two or more the girders（4）It is mutually parallel, is longitudinally disposed at two transverse directions, parallel girder
（4）Between, and with lateral girder（4）Vertical connection is located at the girder of two longitudinal directions of left end and right end（4）It opens
Mouth is inwardly；Several crossbeams（5）It is in laterally that a row are arranged in longitudinal girder（4）Between and both sides, with longitudinal master
Beam（4）It intersects vertically, and is located at the base assembly（16）Rear end and the base assembly（16）Place plane with it is described
Back element（17）The intersection of place plane；Several intermediate beams（3）In parallel to each other, it is placed across by longitudinal girder
（4）, lateral girder positioned at front end（4）And crossbeam（5）In the region of composition, the intermediate beam（3）With longitudinal girder
（4）It intersects vertically；Four cant beams（7）End respectively with the base assembly（16）The girder of front and rear sides transverse direction（4）End,
And the crossbeam（5）End be connected；The base assembly（16）Further include being symmetrically disposed in longitudinal girder（4）
Two boss in outside（13）, the boss（13）Height and the intermediate beam（3）Height it is concordant.
6. vibration test fixture according to claim 5, it is characterised in that：Two or more the columns（8）Along vertical
To in the base assembly（16）Direction, respectively with the crossbeam（5）With longitudinal girder（4）It intersects vertically；The top beam
（10）It is placed across the base assembly（16）Top, the column（8）Top, the top beam（10）Back and institute
State column（8）End connect, the top beam（10）Side and the column（8）Side it is concordant；Three or more diagonal braces
（9）One end is connected to the column（8）With the top beam（10）Junction, the other end is connected to longitudinal girder（4）With most
The lateral girder of rear end（4）Junction；Other two diagonal braces（9）One end be connected to the crossbeam（5）With the cant beam
（7）Junction, the other end be connected to the left and right sides two root posts（8）With the top beam（10）The junction at both ends.
7. vibration test fixture according to claim 5 or 6, it is characterised in that：In the intermediate beam（3）And boss
（13）, and it is located at the base assembly（16）The lateral girder of front end（4）On be equably provided with and subtract in array-like
Shake device mounting hole（12）.
8. vibration test fixture according to claim 7, it is characterised in that：In the top beam（10）On be equally spacedly arranged
There is damping device mounting hole（12）, the damping device mounting hole（12）Position be adapted to the test item（6）Back peace
Dress height.
9. according to claim 5,6 or 8 any one of them vibration test fixtures, it is characterised in that：The base assembly（16）
Bottom be provided with mounting hole（11）, the mounting hole（11）In the intermediate beam（3）, girder（4）, crossbeam（5）And cant beam（7）
Bottom equally arrange；The intermediate beam（3）, longitudinal girder（4）, positioned at longitudinal girder（4）Between crossbeam
（5）, and it is located at the base assembly（16）The lateral girder of front（4）On mounting hole（11）Relative to the cant beam
（7）, longitudinal girder at left and right sides of the rectangular frame structure（4）The crossbeam in outside（5）, and it is located at the pedestal
Component（16）The lateral girder at rear portion（4）Distribution is more intensive.
10. vibration test fixture according to claim 9, it is characterised in that：The general frame（1）Using whole channel steel
Welding structure, the intermediate beam（3）, girder（4）, crossbeam（5）, cant beam（7）And top beam（10）It is all made of and is internally provided with reinforcement
Muscle（14）C-shaped channel steel（15）, the reinforcing rib（14）Scarfweld is in the C-shaped channel steel（15）Inner surface.
11. a kind of installation method of the vibration test fixture as described in any one of claims 1 to 10, which is characterized in that including with
Lower step：
The bottom of the vibration test fixture is mounted on the table top of vibration mechine；
By test item（6）Mounted on by base assembly（16）And back element（17）The general frame of composition（1）On, the subject
Product（6）With the base assembly（16）, back element（17）Between pass through damping device（2）It is fixedly connected.
12. according to the method for claim 11, it is characterised in that：Described in being more than when the footprint of the vibration mechine
When the bottom area certain value of vibration test fixture, by being distributed in the base assembly（16）The mounting hole of bottom（11）With institute
The table top for stating vibration mechine is fixedly connected.
13. according to the method for claim 11, it is characterised in that：Described in being less than when the footprint of the vibration mechine
When the bottom area certain value of vibration test fixture, pass through the intermediate beam（3）, longitudinal girder（4）, positioned at longitudinal girder
（4）Between crossbeam（5）, and it is located at the base assembly（16）The lateral girder of front（4）Upper distribution is comparatively close
The mounting hole of collection（11）It is fixedly connected with the table top of the vibration mechine.
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|---|---|---|---|
| CN201510055394.5A CN105987800B (en) | 2015-02-03 | 2015-02-03 | A kind of vibration test fixture and its installation method |
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|---|---|---|---|
| CN201510055394.5A CN105987800B (en) | 2015-02-03 | 2015-02-03 | A kind of vibration test fixture and its installation method |
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| CN105987800B true CN105987800B (en) | 2018-09-07 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644431B (en) * | 2016-11-30 | 2023-06-06 | 江西洪都航空工业集团有限责任公司 | Fixing clamp for fatigue test of undercarriage |
| CN107314932B (en) * | 2017-06-16 | 2024-04-12 | 河海大学 | Modularized fatigue test field, matched device and fatigue test method |
| CN107687927B (en) * | 2017-10-10 | 2023-10-13 | 西南交通大学 | Multi-axis synchronous vibration test stand bracket |
| CN108411923B (en) * | 2018-03-22 | 2020-10-09 | 福州大学 | Protection device for array seismic simulation vibrating table and construction method thereof |
| CN110006657B (en) * | 2019-05-07 | 2023-12-08 | 哈尔滨工程大学 | Damping rack applied to fatigue oscillation testing machine of internal combustion engine parts |
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| Publication number | Publication date |
|---|---|
| CN105987800A (en) | 2016-10-05 |
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