CN208872489U - Low frequency horizontal vibration experimental rig by a narrow margin - Google Patents
Low frequency horizontal vibration experimental rig by a narrow margin Download PDFInfo
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- CN208872489U CN208872489U CN201821492030.9U CN201821492030U CN208872489U CN 208872489 U CN208872489 U CN 208872489U CN 201821492030 U CN201821492030 U CN 201821492030U CN 208872489 U CN208872489 U CN 208872489U
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Abstract
The utility model relates to low frequency horizontal vibration experimental rigs by a narrow margin, with testing stand, clamping device, oscillation crosswise device and end seal, clamping device includes the first clamping device, the second clamping device and third clamping device, first pipe fitting can be fixed on the table top of testing stand by the first clamping device and the second clamping device in a manner of axially extending, pipe fitting can be fixed on the table top of testing stand by third clamping device in a manner of axially extending, and be flexibly connected between the first pipe fitting and the second pipe fitting；Oscillation crosswise device further includes oscillation crosswise pedestal and laterally driven transmission device, drives the other end of oscillation crosswise pedestal along the first orbit hole oscillation crosswise being opened on testing stand while one end that laterally driven transmission device is able to drive oscillation crosswise pedestal horizontally rotates.The horizontal vibration experimental rig of low frequency by a narrow margin provided by the utility model, can be good at the sealing performance for detecting flexible interface between the first pipe fitting and the second pipe fitting.
Description
Technical field
The utility model relates to vibration mechine fields, more particularly, to a kind of low frequency horizontal vibration experimental rig by a narrow margin.
Background technique
Increase inspection in GB/T12772-2016 " draining flexible interface cast iron pipe, pipe fitting and attachment " new standard is implemented
Survey project, testing agency must be equipped with new detection testing equipment, test including vibration detection.
But most of vibration rigs, it is all large amplitude and high-frequency vibration mechine, without for draining
Short arc, low-frequency vibratory equipment are needed with flexible interface cast iron pipe, pipe fitting and attachment etc. are this, is unable to satisfy and is actually subjected to
It asks.
Utility model content
The utility model is to propose in view of the above problems, and its purpose is to provide a kind of low frequency horizontal vibrations by a narrow margin to try
Experiment device, to solve the above problems.
The utility model is realized by using following technical solution:
The utility model of first technical solution is a kind of low frequency horizontal vibration experimental rig by a narrow margin, for detecting the first pipe fitting
And second flexible interface between pipe fitting sealing performance, with testing stand and for sealing first pipe fitting or the second pipe fitting
The end seal of end.
With a direction in the horizontal plane of the testing stand be laterally, in horizontal plane perpendicular to the lateral side
To being axial:
The horizontal vibration of the low frequency by a narrow margin experimental rig also has clamping device and oscillation crosswise device, the clamping device
Including the first clamping device, the second clamping device and third clamping device.
First clamping device and second clamping device being capable of sides by first pipe fitting to axially extend
Formula clamping is fixed on the table top of the testing stand, and the third clamping device can be by second pipe fitting to axially extend
Mode clamping be fixed on the table top of the testing stand, be flexibly connected between first pipe fitting and second pipe fitting；
The oscillation crosswise device further includes oscillation crosswise pedestal and laterally driven transmission device, in axial direction, described
One end of the upper surface of oscillation crosswise pedestal is connect with the lower surface of first clamping device, the oscillation crosswise pedestal it is upper
The other end on surface is connect with the lower surface of second clamping device, and the laterally driven transmission device is able to drive the cross
The other end edge of the oscillation crosswise pedestal is driven to be opened in the testing stand while horizontally rotating to one end of vibrating base
On the first orbit hole oscillation crosswise.
In addition, the horizontal vibration experimental rig of low frequency by a narrow margin of the second technical solution, in the low frequency by a narrow margin of the first technical solution
On the basis of horizontal vibration experimental rig, the laterally driven transmission device includes first reducing motors and is installed on the test
The crank and rocker mechanism of the inside of platform, in the axial direction, the both ends of the oscillation crosswise pedestal are respectively by passing through the test
The connecting rod of the table top of platform is connect with the crank and rocker mechanism, and the first reducing motors can drive the crank rocker machine
Structure movement, so that one end of the oscillation crosswise pedestal be driven to drive the another of the oscillation crosswise pedestal while horizontally rotating
End is along the first orbit hole oscillation crosswise being opened on the testing stand.
In addition, the horizontal vibration experimental rig of low frequency by a narrow margin of third technical solution, first or two technical solution by a narrow margin
On the basis of low frequency horizontal vibration experimental rig, the horizontal vibration of the low frequency by a narrow margin experimental rig also has axial vibration device,
The axial vibration device includes axially drawing to dial shake table and axially driving transmission device, and the axial direction draws the upper table for dialling shake table
Face is connect with the lower surface of the third clamping device, and the axially driving transmission device is able to drive the axial direction and draws group vibration
Platform is along the second orbit hole axial vibration being opened on the testing stand.
In addition, the horizontal vibration experimental rig of low frequency by a narrow margin of the 4th technical solution, in the low frequency by a narrow margin of third technical solution
On the basis of horizontal vibration experimental rig, the axially driving transmission device includes second reducing motors and is installed on the test
The slider-crank mechanism of the inside of platform, the axial direction draw the connecting rod for dialling table top of the shake table by passing through the testing stand and institute
The sliding block connection of slider-crank mechanism is stated, the second reducing motors can drive the slider-crank mechanism to move, thus band
It moves the axial direction and draws group shake table along the second orbit hole axial vibration being opened on the testing stand.
In addition, the horizontal vibration experimental rig of low frequency by a narrow margin of the 5th technical solution, in the low frequency by a narrow margin of the 4th technical solution
On the basis of horizontal vibration experimental rig, the crank of the slider-crank mechanism be adjustable eccentric away from eccentric mechanism, it is described
Eccentric mechanism includes crank, interior eccentric wheel, outer eccentric wheel and locking pin, in the rotation of the interior eccentric wheel and the outer eccentric wheel
The heart is different, and the output shaft of the second reducing motors, the interior eccentric wheel, the outer eccentric wheel and the crank successively connect
It connects, the locking pin is set between the interior eccentric wheel and the outer eccentric wheel, for the outer eccentric wheel and described interior
Relative position between eccentric wheel is locked.
In addition, the horizontal vibration experimental rig of low frequency by a narrow margin of the 6th technical solution, in the low frequency by a narrow margin of the first technical solution
On the basis of horizontal vibration experimental rig, the end seal includes that one end blocks, the other end is connected to first flange
End connecting tube, docked with the first flange second flange, be set to the first flange and the second flange it
Between gasket and connector for connecting the first flange and the second flange.
In addition, the horizontal vibration experimental rig of low frequency by a narrow margin of the 7th technical solution, in the low frequency by a narrow margin of the first technical solution
On the basis of horizontal vibration experimental rig, first clamping device, second clamping device and the third clamping device
Structure is identical, and, first clamping device, second clamping device and the third clamping device are respectively provided with respective
Lower holder, upper holder, being formed between the upper holder and the lower holder can be to first pipe fitting or second pipe fitting
The fixing space fixed.
In addition, the horizontal vibration experimental rig of low frequency by a narrow margin of the 8th technical solution, in the low frequency by a narrow margin of the 7th technical solution
On the basis of horizontal vibration experimental rig, the upper holder passes through the height of the upper holder can be adjusted height tune
Section component is connect with the lower holder.
In addition, the horizontal vibration experimental rig of low frequency by a narrow margin of the 9th technical solution, in the low frequency by a narrow margin of the 8th technical solution
On the basis of horizontal vibration experimental rig, the height adjustment assembly includes screw bolt and nut,
The height adjustment assembly is sequentially passed through after the lower holder and the upper holder with the bar portion of the bolt by institute
The upper holder is fixed on the lower holder by the mode for stating nut check.
In addition, the horizontal vibration experimental rig of low frequency by a narrow margin of the tenth technical solution, in the low frequency by a narrow margin of the 7th technical solution
On the basis of horizontal vibration experimental rig, the upper notch of inverted v-shaped is formed on the lower surface of the upper holder, in the lower folder
The lower notch of positive V-shaped is formed on the upper surface of seat, the upper notch corresponds to each other the composition fixing with the lower notch
Space.
Compared with prior art, the utility model has the advantages that.
The utility model provides a kind of low frequency horizontal vibration experimental rig by a narrow margin, for detecting the first pipe fitting and the second pipe
The sealing performance of flexible interface between part, the end of the end with testing stand and for sealing the first pipe fitting or the second pipe fitting
Sealing device.
It is laterally, using the direction perpendicular to transverse direction in horizontal plane as axis with a direction in the horizontal plane of testing stand
To:
Low frequency horizontal vibration experimental rig also has clamping device and oscillation crosswise device by a narrow margin.
Clamping device includes the first clamping device, the second clamping device and third clamping device.
First clamping device and the second clamping device can clamping be fixed in a manner of axially extending by the first pipe fitting
On the table top of testing stand, third clamping device can clamping be fixed on testing stand in a manner of axially extending by the second pipe fitting
On table top, it is flexibly connected between the first pipe fitting and the second pipe fitting；
Oscillation crosswise device further includes oscillation crosswise pedestal and laterally driven transmission device,
In axial direction, one end of the upper surface of oscillation crosswise pedestal is connect with the lower surface of the first clamping device, laterally
The other end of the upper surface of vibrating base is connect with the lower surface of the second clamping device.
One end that laterally driven transmission device is able to drive oscillation crosswise pedestal drives oscillation crosswise while horizontally rotating
The other end of pedestal is along the first orbit hole oscillation crosswise being opened on testing stand.
The horizontal vibration experimental rig of low frequency by a narrow margin provided by the utility model, can be good at for detect the first pipe fitting and
The sealing performance of flexible interface between second pipe fitting meets country for the requirement of vibration detection test.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is indicate the horizontal vibration experimental rig of low frequency by a narrow margin in specific embodiment provided by the utility model whole
Body structural schematic diagram；
Fig. 2 is indicate the horizontal vibration experimental rig of low frequency by a narrow margin in specific embodiment provided by the utility model inclined
The structural schematic diagram of innermost being handle；
Fig. 3 is the end for indicating the horizontal vibration experimental rig of low frequency by a narrow margin in specific embodiment provided by the utility model
The structural schematic diagram of portion's sealing device；
Fig. 4 is the dress for indicating the horizontal vibration experimental rig of low frequency by a narrow margin in specific embodiment provided by the utility model
The structural schematic diagram of clamp device.
Appended drawing reference: 1- testing stand；2- end seal；The end 201- connecting tube；202- connector；203- sealing
Pad；204- first flange；205- second flange；3- sliding bearing；The first clamping device of 41-；The second clamping device of 42-；43-
Three clamping devices；Holder under 401-；402- height adjustment assembly；The upper holder of 403-；5- oscillation crosswise pedestal；The first pipe fitting of 6-；
The laterally driven transmission device of 7-；The second pipe fitting of 8-；9-, which axially draws, dials shake table；The axially driving transmission device of 10-；1001- locking
Pin；Eccentric wheel in 1002-；The outer eccentric wheel of 1003-.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should be noted that term " on ", "lower", "vertical", "horizontal", "inner",
The orientation or positional relationship of the instructions such as "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing this reality
It is described with novel with simplified, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second ", " third "
It is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is set
Set ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in utility model.
It is specific real to it below according to the overall structure of the horizontal vibration experimental rig of low frequency by a narrow margin provided by the utility model
Example is applied to be illustrated.
Fig. 1 is indicate the horizontal vibration experimental rig of low frequency by a narrow margin in specific embodiment provided by the utility model whole
Body structural schematic diagram；Fig. 2 is the horizontal vibration of the low frequency by a narrow margin test dress indicated in specific embodiment provided by the utility model
The structural schematic diagram for the eccentric mechanism set；Fig. 3 is the low frequency water by a narrow margin indicated in specific embodiment provided by the utility model
The structural schematic diagram of the end seal of flat vibration testing device；Fig. 4 is to indicate specific embodiment party provided by the utility model
The structural schematic diagram of the clamping device of the horizontal vibration experimental rig of low frequency by a narrow margin in formula.
As shown in Figures 1 to 4, a kind of low frequency horizontal vibration experimental rig by a narrow margin is present embodiments provided, for detecting the
The sealing performance of flexible interface between one pipe fitting 6 and the second pipe fitting 8, with testing stand 1 and for sealing the first pipe fitting 6 or the
The end seal 2 of the end of two pipe fittings 8 is laterally with a direction in the horizontal plane of testing stand 1.
It is axial with the direction perpendicular to transverse direction in horizontal plane:
Low frequency horizontal vibration experimental rig also has clamping device and oscillation crosswise device by a narrow margin, and clamping device includes first
Clamping device 41, the second clamping device 42 and third clamping device 43,42 energy of the first clamping device 41 and the second clamping device
It reaches and the first clamping in a manner of axially extending of pipe fitting 6 is fixed on the table top of testing stand 1, third clamping device 43 can incite somebody to action
Second clamping in a manner of axially extending of pipe fitting 8 is fixed on the table top of testing stand 1, between the first pipe fitting 6 and the second pipe fitting 8
Flexible connection；
Oscillation crosswise device further includes oscillation crosswise pedestal 5 and laterally driven transmission device 7, in axial direction, transverse-vibration
One end of the upper surface of dynamic pedestal 5 is connect with the lower surface of the first clamping device 41, the upper surface of oscillation crosswise pedestal 5 it is another
End is connect with the lower surface of the second clamping device 42, and laterally driven transmission device 7 is able to drive one end water of oscillation crosswise pedestal 5
Drive the other end of oscillation crosswise pedestal 5 along the first orbit hole oscillation crosswise being opened on testing stand 1 while flat turn is dynamic.
Further, laterally driven transmission device 7 includes the crank of first reducing motors with the inside for being installed on testing stand 1
Rocker device, in the axial direction, the both ends of oscillation crosswise pedestal 5 pass through the connecting rod of the table top across testing stand 1 and song respectively
The connection of handle rocker device.
Specifically, the position that connecting rod passes through the table top of testing stand 1 is equipped with sliding bearing 3.
First reducing motors can drive crank and rocker mechanism to move, to drive one end of oscillation crosswise pedestal 5 horizontal
Drive the other end of oscillation crosswise pedestal 5 along the first orbit hole oscillation crosswise being opened on testing stand 1 while rotation.
In addition, low frequency horizontal vibration experimental rig also has axial vibration device by a narrow margin, axial vibration device includes axial
Draw and dial shake table 9 and axially driving transmission device 10, axially draws the following table of the upper surface and third clamping device 43 of dialling shake table 9
Face connection, axially driving transmission device 10 are able to drive the axial group shake table 9 that draws along the second orbit hole being opened on testing stand 1
Axial vibration.
Further, axially driving transmission device 10 includes the song of second reducing motors with the inside for being installed on testing stand 1
Handle slide block mechanism axially draws the sliding block company of the connecting rod and slider-crank mechanism of dialling table top of the shake table 9 by passing through testing stand 1
Connect, second reducing motors can drive slider-crank mechanism to move, thus drive it is axial draw dial shake table 9 along being opened in testing stand
The second orbit hole axial vibration on 1.
Further, the crank of slider-crank mechanism be adjustable eccentric away from eccentric mechanism, eccentric mechanism include song
Handle, interior eccentric wheel 1002, outer eccentric wheel 1003 and locking pin 1001, the center of rotation of interior eccentric wheel 1002 and outer eccentric wheel 1003
Difference, the output shaft of second reducing motors, interior eccentric wheel 1002, outer eccentric wheel 1003 and crank are sequentially connected, locking pin
1001 are set between interior eccentric wheel 1002 and outer eccentric wheel 1003, between external eccentric wheel 1003 and interior eccentric wheel 1002
Relative position locked.
In addition, end seal 2 is connected to the end connecting tube of first flange 204 including one end closure, the other end
201, the second flange 205 docked with first flange 204, the gasket being set between first flange 204 and second flange 205
203 and the connector 202 for connecting first flange 204 and second flange 205.
Specifically, connector 202 is bolt.
In addition, the first clamping device 41, the second clamping device 42 are identical with 43 structure of third clamping device, and, the first dress
Clamp device 41, the second clamping device 42 and third clamping device 43 are respectively provided with respective lower holder 401, upper holder 403, upper folder
The fixing space that can be fixed to the first pipe fitting 6 or the second pipe fitting 8 is formed between seat 403 and lower holder 401.
Further, upper holder 403 passes through the height of upper holder 403 can be adjusted height adjustment assembly 402
It is connect with lower holder 401.
Further, height adjustment assembly 402 includes screw bolt and nut, and height adjustment assembly 402 is with the bar portion of bolt
Upper holder 403 is fixed on lower holder 401 by the mode of nut check after sequentially passing through lower holder 401 and upper holder 403.
In addition, the upper notch of inverted v-shaped is formed on the lower surface of upper holder 403, the shape on the upper surface of lower holder 401
The lower notch of Cheng Youzheng V-shaped, upper notch correspond to each other composition with lower notch and fix space.
It should be strongly noted that oscillation crosswise device and axial vibration device are same in above-mentioned whole implementation mode
One moment, one and only one operation.
The specific structure of the utility model is illustrated above, illustrates its usage mode below.
In use, firstly, the first pipe fitting and the second pipe fitting are flexibly connected, specifically, flexible connection can be by being flexible coupling
It realizes, then, the port of the second pipe fitting is sealed with end seal, then, internally injected from the port of the first pipe fitting
Then, the port of the first pipe fitting is sealed with end seal until the water surface is flushed with the port surface of the first pipe fitting for water, then,
First pipe fitting is horizontally fixed on testing stand by the first clamping device and the second clamping device, the second pipe fitting is passed through into third
Clamping device is horizontally fixed on experimental bench, finally, running oscillation crosswise device, is observed between the first pipe fitting and the second pipe fitting
Flexible interface.
If there is water exudation at flexible interface position, illustrate that the sealing performance of flexible interface is not good enough；If flexible interface portion
Position is oozed out without water, illustrates the favorable sealing property of flexible interface.
In addition, laterally driven transmission device includes first reducing motors and is installed in above-mentioned specific embodiment
The crank and rocker mechanism of the inside of testing stand, in the axial direction, the both ends of oscillation crosswise pedestal are respectively by passing through testing stand
The connecting rod of table top is connect with crank and rocker mechanism, and first reducing motors can drive crank and rocker mechanism to move, to drive
Drive the other end of oscillation crosswise pedestal along the be opened on testing stand while one end of oscillation crosswise pedestal horizontally rotates
One orbit hole oscillation crosswise.
Through this structure, achieve the purpose that horizontal low frequency vibrates the first pipe fitting.
In addition, low frequency horizontal vibration experimental rig also has axial vibration dress by a narrow margin in above-mentioned specific embodiment
Set, axial vibration device include it is axial draw dial shake table and axially driving transmission device, axially draw dial the upper surface of shake table with
The lower surface of third clamping device connects, and axially driving transmission device is able to drive axial group shake table edge of drawing and is opened in testing stand
On the second orbit hole axial vibration.
Axially driving transmission device includes the slider-crank mechanism of second reducing motors with the inside for being installed on testing stand, axis
It is connected to the sliding block for drawing the connecting rod and slider-crank mechanism of dialling table top of the shake table by passing through testing stand, second reducing motors
Slider-crank mechanism can be driven to move, to drive the axial group shake table that draws along the second track hole axle being opened on testing stand
To vibration.
Through this structure, achieve the purpose that axial low frequency draws and dial the second pipe fitting of vibration.
In addition, in above-mentioned specific embodiment, the crank of slider-crank mechanism be adjustable eccentric away from bias it is bent
Handle, eccentric mechanism include crank, interior eccentric wheel, outer eccentric wheel and locking pin, and the center of rotation of interior eccentric wheel and outer eccentric wheel is not
Together, the output shaft of second reducing motors, interior eccentric wheel, outer eccentric wheel and crank are sequentially connected, and locking pin is set to interior bias
Between wheel and outer eccentric wheel, locked for the relative position between external eccentric wheel and interior eccentric wheel.
Through this structure, axially driving transmission device can adjust Oscillation Amplitude, form axial amplitude modulation driving vibration
Device.
In addition, in above-mentioned specific embodiment, end seal includes that one end blocks, the other end is connected to the
The end connecting tube of one flange, the second flange docked with first flange, be set to it is close between first flange and second flange
Packing and connector for connecting first flange and second flange.
Through this structure, the mesh of end of the first pipe fitting or this second pipe fitting can be sealed by reaching end seal
, it avoids impacting monitoring result, improves the accuracy of test.
In addition, in above-mentioned specific embodiment, the first clamping device, the second clamping device and third clamping device knot
Structure is identical, and, the first clamping device, the second clamping device and third clamping device are respectively provided with respective lower holder, upper holder,
The fixing space that can be fixed to the first pipe fitting or the second pipe fitting is formed between upper holder and lower holder.
Through this structure, facilitate the fixation and disassembly of the first pipe fitting and the second pipe fitting on testing stand.
In addition, in above-mentioned specific embodiment, upper holder passes through the height of upper holder can be adjusted height
Degree adjusts component and connect with lower holder.
Through this structure, be conducive to test the pipe fitting of different thicknesses degree.
In addition, in above-mentioned specific embodiment, height adjustment assembly includes screw bolt and nut, height adjustment assembly with
Upper holder is fixed on lower holder after sequentially passing through lower holder and upper holder by the mode of nut check by the bar portion of bolt.
Through this structure, achieve the purpose that the height to upper holder is adjusted.
In addition, the upper notch of inverted v-shaped is formed on the lower surface of upper holder in above-mentioned specific embodiment,
The lower notch of positive V-shaped is formed on the upper surface of lower holder, upper notch corresponds to each other composition with lower notch and fixes space.
Through this structure, be conducive to the fixation on testing stand by the first pipe fitting and the second pipe fitting.
In addition, in the above-described embodiment, the specific structure of the utility model is illustrated, but not limited to this.
For example, laterally driven transmission device includes first reducing motors and is installed in above-mentioned specific embodiment
The crank and rocker mechanism of the inside of testing stand, in the axial direction, the both ends of oscillation crosswise pedestal are respectively by passing through testing stand
The connecting rod of table top is connect with crank and rocker mechanism, and first reducing motors can drive crank and rocker mechanism to move, to drive
Drive the other end of oscillation crosswise pedestal along the be opened on testing stand while one end of oscillation crosswise pedestal horizontally rotates
One orbit hole oscillation crosswise.
But not limited to this, can also be not provided with above-mentioned first reducing motors, but rotary cylinder is arranged in addition to drive
Dynamic crank and rocker mechanism movement, equally can be achieved the purpose for vibrating the first pipe fitting horizontal low frequency, but rotary cylinder runs shape
State is more difficult to control, in addition, it is desirable to provide gas source, in contrast, according to the structure in above-mentioned specific embodiment, setting first subtracts
Speed motor drives crank and rocker mechanism to move, and is easy to control, and equipment is simple, saves test occupied space.
In addition, low frequency horizontal vibration experimental rig also has axial vibration device by a narrow margin in above-mentioned specific embodiment,
Axial vibration device includes axially drawing to dial shake table and axially driving transmission device, axially draws the upper surface for dialling shake table and third
The lower surface of clamping device connects, and axially driving transmission device is able to drive axial group shake table edge of drawing and is opened on testing stand
Second orbit hole axial vibration.
But not limited to this, can also be not provided with above-mentioned axial vibration device, only by oscillation crosswise monitoring first
The leakproofness of flexible interface between pipe fitting and the second pipe fitting still according to above-mentioned specific embodiment, is arranged axial vibration and fills
It sets, can make the second pipe fitting that axial low-frequency vibration occur, become apparent from test effect, test result is more convincing.
In addition, axially driving transmission device includes second reducing motors and is installed on examination in above-mentioned specific embodiment
The slider-crank mechanism of the inside of platform is tested, the connecting rod and crank block for dialling table top of the shake table by passing through testing stand are axially drawn
The sliding block of mechanism connects, and second reducing motors can drive slider-crank mechanism to move, and dials shake table edge to drive and axially draw
The second orbit hole axial vibration being opened on testing stand.
But not limited to this, can also be not provided with above-mentioned second reducing motors, but telescopic cylinder is arranged in addition to drive
Dynamic slider-crank mechanism moves reciprocatingly, and equally can be achieved, which makes the axial low frequency of the second pipe fitting draw the function of dialling and vibrate, still stretches
Contracting cylinder operating status is more difficult to control, in addition, it is desirable to gas source be provided, in contrast, according to the knot in above-mentioned specific embodiment
Structure is arranged second reducing motors to drive slider-crank mechanism to move, is easy to control, and equipment is simple, saves test occupied space.
In addition, in above-mentioned specific embodiment, the crank of slider-crank mechanism be adjustable eccentric away from eccentric mechanism,
Eccentric mechanism includes crank, interior eccentric wheel, outer eccentric wheel and locking pin, and interior eccentric wheel is different from the center of rotation of outer eccentric wheel,
The output shaft of second reducing motors, interior eccentric wheel, outer eccentric wheel and crank are sequentially connected, locking pin be set to interior eccentric wheel and
Between outer eccentric wheel, locked for the relative position between external eccentric wheel and interior eccentric wheel.
But not limited to this, can also be not provided with above-mentioned interior eccentric wheel, outer eccentric wheel and locking pin, but only setting with
One eccentric wheel of the output axis connection of second reducing motors, the purpose of same achievable second pipe fitting axial direction low-frequency vibration, but
It is that one and the eccentric wheel of the output axis connection of second reducing motors are only set, are unable to adjusting amplitude, test data is less, phase
Than under, according to above-mentioned specific embodiment, crank, interior eccentric wheel, outer eccentric wheel and locking pin, axially driving transmission dress are set
Oscillation Amplitude can be adjusted by setting, and formed axial amplitude modulation and driven vibration device, expand detection range, enhance test result confidence level.
In addition, in above-mentioned specific embodiment, end seal includes that one end blocks, the other end is connected to the
The end connecting tube of one flange, the second flange docked with first flange, be set to it is close between first flange and second flange
Packing and connector for connecting first flange and second flange.
But not limited to this, and above-mentioned end seal is also possible to be tied to the port of the first pipe fitting or the second pipe fitting
The function of making the port sealing of the first pipe fitting and the second pipe fitting equally can be achieved in waterproof cloth, still, uses waterproof cloth sealed port
Not enough securely, waterproof effect is bad, in contrast, according to above-mentioned specific embodiment, the end of the first pipe fitting and the second pipe fitting
Mouth sealing effect is more preferable, and port sealing device is more firmly mounted, and will not influence test result.
In addition, in above-mentioned specific embodiment, the first clamping device, the second clamping device and third clamping device knot
Structure is identical, and, the first clamping device, the second clamping device and third clamping device are respectively provided with respective lower holder, upper holder,
The fixing space that can be fixed to the first pipe fitting or the second pipe fitting is formed between upper holder and lower holder.
But not limited to this, is also possible to that U-shaped elastic fastening seat is only arranged, and is not provided with holder and lower holder, equally
It can be achieved to fix the purpose of the first pipe fitting and the second pipe fitting, still, U-shaped elastic fastening seat fastening effect is bad, in contrast, presses
According to above-mentioned specific embodiment, lower holder and upper holder are set, are conducive to more firm to the fixation of the first pipe fitting and the second pipe fitting
Gu reducing the influence to test result.
In addition, in above-mentioned specific embodiment, upper holder passes through the height of upper holder can be adjusted height
Degree adjusts component and connect with lower holder.
But not limited to this, can also be not provided with above-mentioned height adjustment assembly, same that fastening height adjustment group can be achieved
The function of part still according to above-mentioned specific embodiment, is arranged height adjustment assembly, is conducive to different thicknesses degree
Pipe fitting is tested, and the present apparatus scope of application is expanded.
In addition, in above-mentioned specific embodiment, height adjustment assembly includes screw bolt and nut, height adjustment assembly with
Upper holder is fixed on lower holder after sequentially passing through lower holder and upper holder by the mode of nut check by the bar portion of bolt.
But not limited to this, and height adjustment assembly can also only include bolt, the bar portion of bolt pass through after lower holder with it is upper
Holder abuts, and is not provided with nut, the function of the same height that can be achieved to adjust upper holder, still, according to above-mentioned specific reality
Mode is applied, after adjusting height, fixed effect is more preferable.
In addition, the upper notch of inverted v-shaped is formed on the lower surface of upper holder in above-mentioned specific embodiment,
The lower notch of positive V-shaped is formed on the upper surface of lower holder, upper notch corresponds to each other composition with lower notch and fixes space.
But not limited to this, and the upper surface of the lower surface of upper holder and lower holder is also possible to flat mouth, same to can be achieved
The function of the first pipe fitting and the second pipe fitting is fastened, still, flat mouth is easy to produce sliding, test result is influenced, in contrast, according to
Above-mentioned specific embodiment is formed with the upper notch of inverted v-shaped, the shape on the upper surface of lower holder on the lower surface of upper holder
The lower notch of Cheng Youzheng V-shaped, upper notch correspond to each other composition with lower notch and fix space, be conducive to the first pipe fitting and second
The further fastening of pipe fitting.
In addition, the horizontal vibration experimental rig of low frequency by a narrow margin of the utility model, it can be by the various structures of above embodiment
It is composed, can equally play above-mentioned effect.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of low frequency horizontal vibration experimental rig by a narrow margin, for detecting the close of flexible interface between the first pipe fitting and the second pipe fitting
Sealing property, which is characterized in that the end part seal with testing stand and the end for sealing first pipe fitting or the second pipe fitting
Device,
It is laterally, to be perpendicular to the lateral direction in horizontal plane with a direction in the horizontal plane of the testing stand
It is axial:
The horizontal vibration of the low frequency by a narrow margin experimental rig also has clamping device and oscillation crosswise device,
The clamping device includes the first clamping device, the second clamping device and third clamping device,
First clamping device and second clamping device can fill first pipe fitting in a manner of axially extending
It is clamping due on the table top of the testing stand, the third clamping device being capable of side by second pipe fitting to axially extend
Formula clamping is fixed on the table top of the testing stand, is flexibly connected between first pipe fitting and second pipe fitting；
The oscillation crosswise device further includes oscillation crosswise pedestal and laterally driven transmission device,
In axial direction, one end of the upper surface of the oscillation crosswise pedestal is connect with the lower surface of first clamping device,
The other end of the upper surface of the oscillation crosswise pedestal is connect with the lower surface of second clamping device,
Described in being driven while one end that the laterally driven transmission device is able to drive the oscillation crosswise pedestal horizontally rotates
The other end of oscillation crosswise pedestal is along the first orbit hole oscillation crosswise being opened on the testing stand.
2. the horizontal vibration experimental rig of low frequency by a narrow margin according to claim 1, which is characterized in that
The laterally driven transmission device includes the crank rocker machine of first reducing motors with the inside for being installed on the testing stand
Structure,
In the axial direction, the both ends of the oscillation crosswise pedestal respectively by pass through the testing stand table top connecting rod and institute
Crank and rocker mechanism connection is stated,
The first reducing motors can drive the crank and rocker mechanism to move, to drive the one of the oscillation crosswise pedestal
End drives the other end of the oscillation crosswise pedestal along the first orbit hole being opened on the testing stand while horizontally rotating
Oscillation crosswise.
3. the horizontal vibration experimental rig of low frequency by a narrow margin according to claim 1 or 2, which is characterized in that the low frequency by a narrow margin
Horizontal vibration experimental rig also has axial vibration device,
The axial vibration device includes axially drawing to dial shake table and axially driving transmission device,
The upper surface that the axial direction draws group shake table is connect with the lower surface of the third clamping device, the axially driving transmission
Device is able to drive the axial direction and draws group shake table along the second orbit hole axial vibration being opened on the testing stand.
4. the horizontal vibration experimental rig of low frequency by a narrow margin according to claim 3, which is characterized in that
The axially driving transmission device includes the crank block machine of second reducing motors with the inside for being installed on the testing stand
Structure,
The axial direction, which is drawn, dials the connecting rod of table top of the shake table by passing through the testing stand and the cunning of the slider-crank mechanism
Block connection,
The second reducing motors can drive the slider-crank mechanism to move, so that driving the axial direction to draw dials shake table edge
The second orbit hole axial vibration being opened on the testing stand.
5. the horizontal vibration experimental rig of low frequency by a narrow margin according to claim 4, which is characterized in that the crank block machine
The crank of structure be adjustable eccentric away from eccentric mechanism,
The eccentric mechanism includes crank, interior eccentric wheel, outer eccentric wheel and locking pin,
The interior eccentric wheel is different from the center of rotation of the outer eccentric wheel,
The output shaft of the second reducing motors, the interior eccentric wheel, the outer eccentric wheel and the crank are sequentially connected,
The locking pin is set between the interior eccentric wheel and the outer eccentric wheel, for the outer eccentric wheel and described interior
Relative position between eccentric wheel is locked.
6. the horizontal vibration experimental rig of low frequency by a narrow margin according to claim 1, which is characterized in that
The end seal includes that one end blocks, the other end is connected with the end connecting tube of first flange, with described first
The second flange of flange docking, the gasket that is set between the first flange and the second flange and for connecting
State the connector of first flange and the second flange.
7. the horizontal vibration experimental rig of low frequency by a narrow margin according to claim 1, which is characterized in that the first clamping dress
Set, second clamping device it is identical with the third clamping device structure, and, first clamping device, it is described second dress
Clamp device and the third clamping device are respectively provided with respective lower holder, upper holder, the upper holder and the lower holder it
Between form the fixing space that can be fixed to first pipe fitting or second pipe fitting.
8. the horizontal vibration experimental rig of low frequency by a narrow margin according to claim 7, which is characterized in that the upper holder passes through energy
It is enough that the height adjustment assembly that the height of the upper holder is adjusted is connect with the lower holder.
9. the horizontal vibration experimental rig of low frequency by a narrow margin according to claim 8, which is characterized in that the height adjustment group
Part includes screw bolt and nut,
The height adjustment assembly is sequentially passed through after the lower holder and the upper holder with the bar portion of the bolt by the spiral shell
The upper holder is fixed on the lower holder by the mode of mother's locking.
10. the horizontal vibration experimental rig of low frequency by a narrow margin according to claim 7, which is characterized in that the upper holder
It is formed with the upper notch of inverted v-shaped on lower surface, the lower notch of positive V-shaped, institute are formed on the upper surface of the lower holder
It states notch and corresponds to each other the composition fixing space with the lower notch.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821492030.9U CN208872489U (en) | 2018-09-12 | 2018-09-12 | Low frequency horizontal vibration experimental rig by a narrow margin |
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| CN201821492030.9U CN208872489U (en) | 2018-09-12 | 2018-09-12 | Low frequency horizontal vibration experimental rig by a narrow margin |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108827576A (en) * | 2018-09-12 | 2018-11-16 | 唐山冀东装备工程股份有限公司 | Low frequency horizontal vibration experimental rig by a narrow margin |
| JPWO2021070270A1 (en) * | 2019-10-08 | 2021-04-15 |
-
2018
- 2018-09-12 CN CN201821492030.9U patent/CN208872489U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108827576A (en) * | 2018-09-12 | 2018-11-16 | 唐山冀东装备工程股份有限公司 | Low frequency horizontal vibration experimental rig by a narrow margin |
| CN108827576B (en) * | 2018-09-12 | 2023-12-19 | 唐山冀东装备工程股份有限公司 | Low-amplitude low-frequency horizontal vibration test device |
| JPWO2021070270A1 (en) * | 2019-10-08 | 2021-04-15 | ||
| WO2021070270A1 (en) * | 2019-10-08 | 2021-04-15 | 日本電信電話株式会社 | Vibration reproduction device |
| JP7227541B2 (en) | 2019-10-08 | 2023-02-22 | 日本電信電話株式会社 | Vibration reproducer |
| US20240102883A1 (en) * | 2019-10-08 | 2024-03-28 | Nippon Telegraph And Telephone Corporation | Vibration reproduction device |
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