CN107526100A - The prestressed structure of vibrator - Google Patents
The prestressed structure of vibrator Download PDFInfo
- Publication number
- CN107526100A CN107526100A CN201710650428.4A CN201710650428A CN107526100A CN 107526100 A CN107526100 A CN 107526100A CN 201710650428 A CN201710650428 A CN 201710650428A CN 107526100 A CN107526100 A CN 107526100A
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- top plate
- piston rod
- lifting piece
- prestressed structure
- fixedly connected
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/02—Generating seismic energy
- G01V1/04—Details
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
A kind of prestressed structure of vibrator provided by the invention, including：Substrate；It is arranged at the top plate of the surface；Piston rod, its upper end pass the top plate；Lower end is fixedly connected with the substrate；At least two supporters of the piston rod both sides are arranged at, the lower end of the supporter is fixedly connected with the substrate, and the upper end of the supporter is fixedly connected with the top plate；The pulling apparatus of the piston rod upper end is sheathed on, the pulling apparatus can move axially along the outer wall of the piston rod, and be fixedly connected with the top plate, to adjust the prestressing force that it applies to the top plate.The invention provides a kind of prestressed structure of prestressing force regulation more easily vibrator.
Description
Technical field
The present invention relates to controlled source vibrator field, more particularly to a kind of prestressed structure of vibrator.
Background technology
Prestressed structure refers to before structure bears external load, and its tensile region under outer load action is applied in advance
Compression, it is referred to as prestressed structure to improve the structural shape for the performance that structure uses.The prestressed structure of vibrator is shadow
Ring seismic signal and excite one of factor of precision.
As shown in figure 1, the prestressed structure of existing vibrator includes substrate 22, is arranged at the top top plate 24 of substrate 22, one
End is fixedly connected with substrate 22, the piston rod 26 that the other end is fixedly connected with top plate 24, is arranged at the opposite side of piston rod 26 extremely
Few two supporters 28, one end of supporter 28 are fixedly connected with substrate 22, and the other end can be lifted to produce upwards by top plate 24
Prestressing force.Specifically, before loading prestressing force, there is gap between the other end of supporter 28 and the bottom surface of top plate 24.Loading is pre-
During stress, the other end of supporter 28 is fixedly connected by bolt 32 with top plate 24, so that the gap reduces or disappeared.Such as
This, it is necessary to individually be adjusted to each supporter 28 when the prestressed structure of existing vibrator adjusts prestressing force, therefore when branch
When the quantity of support body 28 is two, that is, need the action of re-adjustments twice；When the quantity of supporter 28 is three, that is, need
The action of re-adjustments three times, and so on, the quantity of supporter 28 is more, and the action frequency of re-adjustments is more, so this
Kind prestressing force adjusting method is relatively complicated.
The content of the invention
It is an object of the invention to provide a kind of prestressed structure of prestressing force regulation more easily vibrator.
The above-mentioned purpose of the present invention can be realized using following technical proposal：A kind of prestressed structure of vibrator, including：
Substrate；It is arranged at the top plate of the surface；Piston rod, its upper end pass the top plate；Lower end is fixed with the substrate to be connected
Connect；At least two supporters of the piston rod both sides are arranged at, the lower end of the supporter is fixedly connected with the substrate, institute
The upper end for stating supporter is fixedly connected with the top plate；It is sheathed on the pulling apparatus of the piston rod upper end, the pulling apparatus
It can move axially, and be fixedly connected with the top plate along the outer wall of the piston rod, be applied with to adjust it to the top plate pre-
Stress.
As a preferred embodiment, the pulling apparatus includes the lifting being fixedly connected with the piston rod upper end
Part and the locking part for connecting the lifting piece and the top plate, the pulling apparatus can carry described in locking part connection
When draw piece is with the top plate, the top plate is lifted towards the direction of the lifting piece.
As a preferred embodiment, be provided with guide part on the outer wall of the piston rod, the lifting piece it is interior
The tractive unit being engaged with the guide part is provided with wall, the tractive unit can move along the guide part, so that described carry
Outer wall axial movement of the draw piece along the piston rod.
As a preferred embodiment, the guide part is external screw thread, the tractive unit is internal thread, the interior spiral shell
Line is engaged with external screw thread.
As a preferred embodiment, the pitch of the screw thread is 2mm.
As a preferred embodiment, the lifting piece is nut.
As a preferred embodiment, multiple through holes are provided with the lifting piece, on the top plate accordingly
It is provided with multiple perforates, the quantity of the locking part is multiple, and one end of multiple locking parts is correspondingly fixed on multiple described
In through hole, the other end is correspondingly fixed in multiple perforates.
As a preferred embodiment, circumferencial direction of multiple locking parts along the piston rod is uniformly arranged.
As a preferred embodiment, the locking part is bolt or screw.
As a preferred embodiment, the lifting piece has minimum adjustment amount, the lifting piece and the work
Screw thread is provided between stopper rod, the screw thread has pitch, multiple through holes are provided with the lifting piece；The minimum tune
The quantity of the whole amount=pitch/through hole.
A kind of beneficial effect of prestressed structure for vibrator that the application provides is：Shaking described in the application embodiment
The prestressed structure of dynamic device only needs simultaneously to change at least two supporters along the axial movement pulling apparatus of piston rod
The prestressing force being subject to, namely the application embodiment, it is only necessary to adjust 1 time, can just complete simultaneously at least two supporters
Regulation；And prestressed structure of the prior art needs to carry out bolt connection to each supporter and top plate respectively, supporter
Quantity is how many, then the number of re-adjustments is exactly how many, therefore the application can reduce re-adjustments relative to prior art
Number, so as to provide a kind of prestressed structure of prestressing force regulation more easily vibrator.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
A kind of structural representation of the prestressed structure for vibrator that Fig. 1 is provided in the prior art；
A kind of structural representation of the prestressed structure for vibrator that Fig. 2 one embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Refer to Fig. 2.A kind of prestressed structure for vibrator that a kind of embodiment of the application provides, it can include：
Substrate 11；It is arranged at the top plate 13 of the top of substrate 11；Piston rod 15, its upper end pass the top plate 13；Lower end with it is described
Substrate 11 is fixedly connected；Be arranged at least two supporters 17 of the both sides of piston rod 15, the lower end of the supporter 17 with
The substrate 11 is fixedly connected, and the upper end of the supporter 17 is fixedly connected with the top plate 13；It is sheathed on the piston rod 15
The pulling apparatus of upper end, the pulling apparatus can move axially along the outer wall of the piston rod 15, and fix and connect with the top plate
Connect, to adjust the prestressing force that it applies to the top plate 13.
As can be seen from the above technical solutions：At least two in the prestressed structure of vibrator described in the application embodiment
The upper end of individual supporter 17 is fixedly connected with top plate 13, and lower end is fixedly connected with substrate 11, therefore at least two supporters
17th, top plate 13 and substrate 11 form an entirety, when the prestressing force that top plate 13 is applied by pulling apparatus, due to the transmission of power
Property, power can be transmitted to the other parts in this entirety, so that at least two supporters 17 are carried by top plate 13
The prestressing force that drawing device applies.Again because pulling apparatus can move axially along the outer wall of piston rod 15, and fix and connect with top plate 13
Connect, therefore pulling apparatus can be along the axially varying prestressing force that it applies to top plate 13 of piston rod 15, so as to make at least two simultaneously
The prestressing force being subject on individual supporter 17 changes.In summary, the prestressing force of the vibrator described in the application embodiment
Structure only need simultaneously to change along the axial movement pulling apparatus of piston rod 15 be subject at least two supporters 17 it is pre-
Stress, namely the application embodiment, it is only necessary to adjust 1 time, can just complete the regulation simultaneously at least two supporters 17；And
Prestressed structure of the prior art needs individually to carry out bolt connection, supporter 17 to each supporter 17 and top plate 13
Quantity be how many, then the number of re-adjustments be exactly it is how many, therefore the application relative to prior art can reduce repetition adjust
The number of section, so as to provide a kind of prestressed structure of prestressing force regulation more easily vibrator.
As shown in Fig. 2 in the present embodiment, substrate 11 is used for earthward output action power, to produce seismic wave.The base
Plate 11 has longitudinal axis, so as to along the direction of the longitudinal axis earthward output action power.The substrate 11 has relative upper table
Face 27 and lower surface 29, the lower surface 29 is used for and the ground coupling.The shapes and sizes of the substrate 11 can be according to real needs
It is designed, this application is not provided.Top plate 13 has relative top surface 31 and bottom surface 33, the bottom surface 33 and substrate 11
Upper surface 27 is facing.The shapes and sizes of the top plate 13 can be designed according to reality needs, and this application is not advised
It is fixed.
Piston rod 15 has lengthwise bearing of trend, and the lengthwise bearing of trend is parallel with the direction of the longitudinal axis of substrate 11,
So as to which when outer wall of the weight of vibrator along piston rod 15 moves, it can be to the output action power of substrate 11, so that the energy of substrate 11
Earthward output action power.The lower end of the piston rod 15 is fixedly connected with substrate 11, and it can be welding, bolt company that this, which is fixedly connected,
Connect, mode connects for screw, be integrally formed.The upper end of the piston rod 15 passes the upper end edge top plate 13 that top plate 13 can be piston rod 15
Bottom surface 33 to the direction of top surface 31 is upwardly extended through top surface 31 to form elongated end 35 in the top of top plate 13.
Being shaped as supporter 17 is shaft-like.Supporter 17 is used to provide support for top plate 13.The quantity of the supporter 17 is
At least two, can be two or more than two specifically.When the quantity of supporter 17 is two, two branch
Support body 17 relative to piston rod 15 axisymmetricly；When the quantity of supporter 17 is more than two, the plurality of supporter 17 is along piston
The circumferencial direction of bar 15 is uniformly arranged, and such at least two supporter 17 is symmetricly set in the outside of piston rod 15.Supporter 17
Lower end be fixedly connected with substrate 11, the upper end of supporter 17 is fixedly connected with top plate 13；In this way, by least two supporters
17th, top plate 13 and substrate 11 form a beaer, when a portion of the beaer is by active force, due to the biography of power
Passing property, active force can be transmitted to the other parts in this beaer, so that the other parts in beaer are acted on
Power.It can be welding, bolt connection that this, which is fixedly connected, mode connects for screw, be integrally formed.
Pulling apparatus is sheathed on the elongated end 35 of piston rod 15.Pulling apparatus can move axially along the outer wall of piston rod 15
To adjust the prestressing force that it applies to top plate 13, so as to adjust the prestressing force being subject at least two supporters 17 simultaneously.With showing
There is technology to compare, when the application adjusts the stress on supporter 17, it is only necessary to perform 1 outer wall along piston rod 15 and move axially
Pulling apparatus can complete the prestressed of at least two supporters 17 to adjust its prestressed action applied to top plate 13
Regulation, therefore the stress of the application regulation supporter 17 is more convenient.
In one embodiment, pulling apparatus includes the lifting piece 19 being fixedly connected with the upper end of piston rod 15 and for even
The locking part 21 of lifting piece 19 and top plate 13 is connect, pulling apparatus can be when locking part 21 connects lifting piece 19 with top plate 13, direction
The direction lifting top plate 13 of lifting piece 19.Because lifting piece 19 is fixedly connected with the upper end of piston rod 15, so as to by top plate
13 are lifted towards the direction of lifting piece 19, and top plate 13 is connected with lifting piece 19 by locking part 21, are so on the one hand pushed up
Plate 13 is by upward prestressing force, due to the transitivity of power, by upward prestressing force at least two supporters 17；The opposing party
Face top plate 13 pulls piston rod 15 along away from the direction of lifting piece 19, so that piston rod 15 is by downward prestressing force, so
Form the prestressed structure of vibrator.Specifically before prestressing force is loaded, there is gap between lifting piece 19 and top plate 13.Loading is pre-
During stress, due to the presence in the gap, locking part 21 top plate 13 is lifted towards the direction of lifting piece 19 so that the top plate 13 with
Lifting piece 19 is connected, so that gap reduces or disappeared, lifting power of such top plate 13 by lifting piece 19.And lifting piece 19
It can be moved axially along the outer wall of piston rod 15 to adjust the size in the gap, need increase lifting piece 19 to apply top plate 13 so as to work as
During the prestressing force added, lifting piece 19 can be moved up along the outer wall of piston rod 15, to increase between lifting piece 19 and top plate 13
Gap, can further increase pulling apparatus towards lifting piece 19 direction lift top plate 13 lifting power；When needing to reduce
During the prestressing force that lifting piece 19 applies to top plate 13, lifting piece 19 can be moved down along the outer wall of piston rod 15, be carried with reducing
Gap between draw piece 19 and top plate 13, it can further reduce pulling apparatus and lift top plate 13 towards the direction of lifting piece 19
Lift power.In a specific embodiment, locking part 21 is bolt or screw.
Preferably, circumferencial direction of multiple locking parts 21 along piston rod 15 is uniformly arranged, so as to connect by locking part 21
When connecing lifting piece 19 and top plate 13, gap between lifting piece 19 and top plate 13 can be made according to the height of each piston rod 15 along work
The circumferencial direction of stopper rod 15 is by even regulation, and because at least two supporters 17 are symmetricly set in the outside of piston rod 15, from
And at least two supporters 17 can uniformly be lifted power by pulling apparatus.And as shown in figure 1, the prestressing force dress of existing vibrator
Put when adjusting prestressing force, added respectively in the gap between top plate 24 and supporter 28 according to the height of each piston rod 28
The pad 30 of different-thickness makes the uniform force of each piston rod 28 with expectation；But due to the shadow of machining accuracy and cumulative errors
Ring, it is difficult to the gap between at least two supporters 28 and top plate 24 is adjusted to by same size by pad 30, therefore at least
Prestressing force suffered by two supporters 28 has differences, and this otherness can influence seismic signal and excite precision, can also drop
The service life of low vibration device.For prior art, on the vibrator prestressing apparatus described in the application embodiment
Prestressing force suffered by least two supporters 17 evenly, so as to improve the use that seismic signal excites precision and vibrator
Life-span.
In one embodiment, guide part is provided with the outer wall of piston rod 15, is provided with the inwall of lifting piece 19
The tractive unit being engaged with guide part, tractive unit can move along guide part, so that outer wall axial direction of the lifting piece 19 along piston rod 15
It is mobile, due to the guide effect of guide part, so tractive unit can only can not be in place in outside guide part in the movement on guide part
The outer wall of piston rod 15 on move, become more controllable so as to movement of the lifting piece 19 along the outer wall of piston rod 15, further, energy
Regulation pulling apparatus is set to become more controllable to the prestressed process of top plate 13.The guide part can be provided in piston rod 15
Groove on outer wall, tractive unit can be the structure not limited to this of the projection that can be protruded into groove, the guide part and tractive unit,
It can also be other structures.Further, guide part is external screw thread, and tractive unit is internal thread, and internal thread matches with external screw thread
Close, so as to which lifting piece 19 can be along the outer wall helical rotation of piston rod 15, so as to make outer wall axle of the lifting piece 19 along piston rod 15
To movement.Specifically, the pitch of screw thread is 2mm, therefore when outer wall of the lifting piece 19 along piston rod 15 rotates a circle, can be increased
The lifting piece 19 and gap 2mm of the top plate 13 or gap 2mm of reduction lifting piece 19 and top plate 13.Specifically, lifting piece 19 is spiral shell
It is female.
In a specific embodiment, multiple through holes 23 are provided with lifting piece 19, are accordingly set on top plate 13
It is equipped with the perforate 25 of multiple upper end opens, the quantity of locking part 21 is multiple, and one end of multiple locking parts 21 is correspondingly fixed on more
In individual through hole 23, the other end is correspondingly fixed in multiple perforates 25, when applying prestressing force to top plate 13, due to lifting piece 19
There is gap between top plate 13, so lifting top plate 13 first towards close to the direction of lifting piece 19, and make multiple through holes
23 is corresponding with multiple perforates 25, then, one end of multiple locking parts 21 is correspondingly fixed in multiple through holes 23, the other end
It is corresponding to be fixed in multiple perforates 25, so the prestressing apparatus of the vibrator described in the application embodiment can just be assembled
Into.Multiple perforates 25 are corresponding with multiple through holes 23, can be that the quantity of perforate 25 is equal with the quantity of through hole 23, such as
Perforate 25 is two, and through hole 23 is two；Perforate 25 is three, and through hole 23 is three；Can also be adjacent apertures 25 it
Between spacing it is equal with the spacing between adjacent through hole 23, and arrangement of the multiple perforates 25 on top plate 13 and multiple insertions
Arrangement of the hole 23 on lifting piece 19 is identical.For example, circumferencial direction of multiple locking parts 21 along piston rod 15 is uniformly arranged, accordingly
Ground, multiple perforates 25 are uniformly arranged on top plate 13 along the circumferencial direction of piston rod 15；Multiple through holes 23 are on lifting piece 19
Uniformly arranged along the circumferencial direction of piston rod 15.Circumferencial direction of multiple through holes 23 along piston rod 15 is uniformly arranged equivalent to general
Lifting piece 19 is divided into multiple deciles, so that lifting piece 19 has minimum adjustment amount.
The quantity of the minimum adjustment amount=pitch/through hole 23.
Such as when the quantity of locking part 21 is 12,12 through holes 23 carry out 12 deciles equivalent to by lifting piece 19,
, can be with rotary pulling part 19 so that 12 through holes 23 are relative to 12 when adjusting the gap between lifting piece 19 and top plate 13
Perforate 25 rotates 1/12 circle, and such 12 through holes 23 are corresponding with 12 perforates 25 again, and will by 12 locking parts 21
Lifting piece 19 is mutually fixed with top plate 13, and the gap between such lifting piece 19 and top plate 13 have adjusted the number of pitch/through hole 23
Amount.Such as when pitch is 2mm, when the quantity of through hole 23 is 12, the minimum adjustment amount of lifting piece 19 is 1/6mm.
Several embodiments of the present invention are these are only, those skilled in the art can be right according to application documents disclosure
The embodiment of the present invention carries out various changes or modifications without departing from the spirit and scope of the present invention.
Claims (10)
- A kind of 1. prestressed structure of vibrator, it is characterised in that including：Substrate；It is arranged at the top plate of the surface；Piston rod, its upper end pass the top plate；Lower end is fixedly connected with the substrate；At least two supporters of the piston rod both sides are arranged at, the lower end of the supporter is fixedly connected with the substrate, The upper end of the supporter is fixedly connected with the top plate；The pulling apparatus of the piston rod upper end is sheathed on, the pulling apparatus can move axially along the outer wall of the piston rod, And be fixedly connected with the top plate, to adjust the prestressing force that it applies to the top plate.
- 2. the prestressed structure of vibrator according to claim 1, it is characterised in that：The pulling apparatus include with it is described The lifting piece that piston rod upper end is fixedly connected and the locking part for connecting the lifting piece and the top plate, the pulling apparatus When the locking part connects the lifting piece with the top plate top plate can be lifted towards the direction of the lifting piece.
- 3. the prestressed structure of vibrator according to claim 2, it is characterised in that：Set on the outer wall of the piston rod There is guide part, the tractive unit being engaged with the guide part is provided with the inwall of the lifting piece, the tractive unit can be along institute Guide part movement is stated, so that outer wall axial movement of the lifting piece along the piston rod.
- 4. the prestressed structure of vibrator according to claim 3, it is characterised in that：The guide part is external screw thread, institute It is internal thread to state tractive unit, and the internal thread is engaged with external screw thread.
- 5. the prestressed structure of vibrator according to claim 4, it is characterised in that：The pitch of the screw thread is 2mm.
- 6. the prestressed structure of vibrator according to claim 2, it is characterised in that：The lifting piece is nut.
- 7. the prestressed structure of vibrator according to claim 2, it is characterised in that：It is provided with the lifting piece multiple Through hole, is correspondingly provided with multiple perforates on the top plate, the quantity of the locking part be it is multiple, multiple locking parts One end is correspondingly fixed in multiple through holes, and the other end is correspondingly fixed in multiple perforates.
- 8. the prestressed structure of vibrator according to claim 2, it is characterised in that：Multiple locking parts are along the work The circumferencial direction of stopper rod is uniformly arranged.
- 9. the prestressed structure of vibrator according to claim 2, it is characterised in that：The locking part is bolt or spiral shell Nail.
- 10. the prestressed structure of vibrator according to claim 2, it is characterised in that：The lifting piece has minimum Adjustment amount, is provided with screw thread between the lifting piece and the piston rod, the screw thread has pitch, set on the lifting piece There are multiple through holes；The quantity of the minimum adjustment amount=pitch/through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710650428.4A CN107526100A (en) | 2017-08-02 | 2017-08-02 | The prestressed structure of vibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710650428.4A CN107526100A (en) | 2017-08-02 | 2017-08-02 | The prestressed structure of vibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107526100A true CN107526100A (en) | 2017-12-29 |
Family
ID=60680500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710650428.4A Pending CN107526100A (en) | 2017-08-02 | 2017-08-02 | The prestressed structure of vibrator |
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| Country | Link |
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| CN (1) | CN107526100A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201129038Y (en) * | 2007-11-13 | 2008-10-08 | 中国京冶工程技术有限公司 | Prestressed supporting device |
| CN103760593A (en) * | 2013-10-18 | 2014-04-30 | 中国石油天然气集团公司 | Controllable seismic source vibrator and system |
| CN205880239U (en) * | 2016-06-13 | 2017-01-11 | 西南石油大学 | A controlled source vibrator piston rod for oil and gas exploration |
| WO2017024527A1 (en) * | 2015-08-11 | 2017-02-16 | 深圳朝伟达科技有限公司 | Precisely adjustable pre-stressing structure for vibroseis vibrator plate and method of use therefor |
-
2017
- 2017-08-02 CN CN201710650428.4A patent/CN107526100A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201129038Y (en) * | 2007-11-13 | 2008-10-08 | 中国京冶工程技术有限公司 | Prestressed supporting device |
| CN103760593A (en) * | 2013-10-18 | 2014-04-30 | 中国石油天然气集团公司 | Controllable seismic source vibrator and system |
| WO2017024527A1 (en) * | 2015-08-11 | 2017-02-16 | 深圳朝伟达科技有限公司 | Precisely adjustable pre-stressing structure for vibroseis vibrator plate and method of use therefor |
| CN205880239U (en) * | 2016-06-13 | 2017-01-11 | 西南石油大学 | A controlled source vibrator piston rod for oil and gas exploration |
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Application publication date: 20171229 |