CN103760593B - A kind of controlled source vibrator and system - Google Patents
A kind of controlled source vibrator and system Download PDFInfo
- Publication number
- CN103760593B CN103760593B CN201310491942.XA CN201310491942A CN103760593B CN 103760593 B CN103760593 B CN 103760593B CN 201310491942 A CN201310491942 A CN 201310491942A CN 103760593 B CN103760593 B CN 103760593B
- Authority
- CN
- China
- Prior art keywords
- piston
- oil duct
- pressure oil
- hydraulic pressure
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000012530 fluid Substances 0.000 claims abstract description 91
- 239000007788 liquid Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims 2
- 239000003921 oil Substances 0.000 description 83
- 238000000034 method Methods 0.000 description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The open a kind of controlled source vibrator of the present invention, controlled source vibrator includes upper end cover, upper hydraulic pressure oil duct, lower hydraulic pressure oil duct, reaction base plate, column, hammer body, upper hydraulic fluid chamber, lower hydraulic fluid chamber, piston rod, piston, piston bushing.The upper hydraulic pressure oil duct communicated with upper hydraulic fluid chamber and the lower hydraulic pressure oil duct communicated with lower hydraulic fluid chamber it is provided with in piston rod and piston.Offer column to be fixed on upper end cover, column lower end and piston-rod lower end with righting hammer body, column upper end and piston rod upper end be fixed on reaction base plate on hammer body both sides.The invention also discloses a kind of controlled source vibrational system.In earthquake controllable earthquake focus system, hydraulic efficiency servo-valve level is fixedly mounted on the upper end cover of controlled source vibrator.The present invention can reduce oscillating component being disturbed by horizontal direction during vertical vibration compared with conventional piston formula vibrator, improves the quality of institute's earthquake-wave-exciting signal.
Description
Technical field
The invention belongs to field of seismic exploration, particularly to a kind of controlled source vibrator and system.
Background technology
Seismic prospecting is exploration oil, natural gas resource, the important means of solid resource before probing.Seismic prospecting needs artificial sharp
Send out seismic wave, by collecting and surveying seismic wave back wave in the transmitting procedure of stratum, and utilize each seed ginseng of the seismic wave excited
Number, thus collective inference obtains structure and the character on stratum, explains that oil, natural gas there is a possibility that.Along with technology not
Disconnected progressive, people require more and more higher for the resolution of earth formation and nature of ground, and then for institute's earthquake-wave-exciting signal
The quality of quality signals is also intended to ask more and more higher.
One of important means of artificial excitation's seismic wave is for utilizing earthquake controllable earthquake focus system earthquake-wave-exciting.Fig. 1 shows controlled source
The system construction drawing of vibrational system.As it is shown in figure 1, earthquake controllable earthquake focus system includes driving means S1, hydraulic efficiency servo-valve S3, hydraulic pressure
System S2, controlled source vibrator S4.In earthquake controllable earthquake focus system, hydraulic efficiency servo-valve S3 controls fluid turnover controlled source vibrator.
Under the control of hydraulic efficiency servo-valve S3, the fluid of driving means S1 drive hydraulic system principle S2 is by hydraulic efficiency servo-valve S3 and enter into can
In control focus vibrator S4.The oscillating component of controlled source vibrational system is a part of parts in controlled source vibrator S4 and liquid
Pressure servo valve S3.Fluid acts on oscillating component by the driving force of conduction driving means S1, promotes oscillating component to carry out vertical shaking
Dynamic, and then produce seismic wave.In order to reach to improve the quality requirements of oscillating component requirement earthquake-wave-exciting signal, vertical vibration portion
Divide and need to get rid of horizontal direction interference in vibration processes as far as possible.Whereas if oscillating component suffered interference in vibration processes,
The quality of the quality signals of institute's earthquake-wave-exciting signal can be had adverse effect on.Such as oscillating component is in vertical vibration process
In, if subjected to the interference of horizontal direction, described interference can affect the vertical vibration of oscillating component, and then affect vertical vibration institute
The quality of earthquake-wave-exciting signal.
At present, controlled source vibrator is conventional piston formula vibrator.Fig. 4 show conventional piston formula vibrator structure chart and
Its annexation with hydraulic efficiency servo-valve 4.As shown in Figure 4, traditional piston type vibrator include upper end cover 1, technique oil duct 2,
Upper hydraulic pressure oil duct 3.1, lower hydraulic pressure oil duct 3.2, technique oil duct 5, reaction base plate 6, column 7, hammer body 8, upper hydraulic fluid chamber 9.1,
Lower hydraulic fluid chamber 9.2, piston rod 10.1, piston 10.2, piston bushing 11, necking down 12.1, necking down 12.2, oilhole 13.1,
Oilhole 13.2, high-pressure oil duct 14, low pressure oil duct 15.Hammer body 8 is a rectangular blocks, and weight is generally more than 4000 kilograms, center
Having a through hole, the cross section of through hole is circular.As shown in Figure 4, AA' line shows the center line of this through hole.Hammer body 8 side
Being provided with hydraulic efficiency servo-valve 4, hydraulic efficiency servo-valve 4 is connected with hydraulic system etc. by high-pressure oil duct 14, low pressure oil duct 15.Described hammer
The round tube hole of body 8 is provided with piston 10.2 and piston rod 10.1.Piston 10.2 and piston rod 10.1 are cylinder, piston rod 10.1
Including the two parts of the symmetry being distributed in two ends, piston 10.2 upper and lower end face, piston rod 10.1 upper end is fixed on upper end cover 1, under
End is fixed on reaction base plate 6.Piston 10.2 diameter is equal with through hole mid diameter on hammer body 8 and is more than the straight of piston rod 10.1
Footpath.The necking down 12.2 of the necking down 12.1 and bottom being distributed in piston rod top is had on piston rod 10.1.The through hole upper and lower two of hammer body 8
End is respectively fixed with piston bushing 11, limits the range of movement of piston 10.2 for righting.Piston bushing 11 is hollow cylinder,
Interior diameter and piston rod 10.1 equal diameters, its cross-sectional area is horizontal with the cross section at the upper and lower two ends of described through hole and piston rod 10.1
Difference in areas between cross section is equal.Piston bushing about 11 two parts offer oilhole 13.1 and oilhole 13.2 respectively.Oilhole 13.1
Being connected with necking down 12.1, oilhole 13.2 is connected with necking down 12.2.The left and right two in the vertical section, center line AA ' place of hammer body 8
While offer two cylindrical open-works, open-work is inserted with column 7 that hammer body rises centralizing function respectively.Column 7 diameter and hammer body
The diameter of the described open-work of 8 is roughly equal, and column 7 upper end is fixed on upper end cover 1, and lower end is fixed on reaction base plate 6.Institute
State column 7 to move up and down relative to hammer body in open-work.Hammer body 8, piston 10.2 and piston rod 10.1 thereof and piston bushing 11
The space surrounded is working oil chamber, and including upper hydraulic fluid chamber 9.1 and lower hydraulic fluid chamber 9.2, described working oil chamber cross section is annular.
Upper hydraulic fluid chamber 9.1 is connected with necking down 12.1.Lower hydraulic fluid chamber 9.2 is connected with necking down 12.2.Hammer body 8 side has oil duct,
Including technique oil duct 2, technique oil duct 5, upper hydraulic pressure oil duct 3.1, lower hydraulic pressure oil duct 3.2, high-pressure oil duct 14, low pressure oil duct 15.
Technique oil duct 2 is offered upper hydraulic pressure oil duct 3.1 offered by being met, and technique oil duct 5 is offered for meeting time hydraulic pressure oil duct 3.2.Upper liquid
Force feed road 3.1 is internal exists two 90 ° of changeover portions, and one end connects with oilhole 13.1, and the other end is connected with hydraulic efficiency servo-valve 4.
Lower hydraulic pressure oil duct 3.2 is internal exists two 90 ° of changeover portions, and one end connects with oilhole 13.2, and the other end is connected with hydraulic efficiency servo-valve 4
Logical.Fluid enters into upper hydraulic fluid chamber 9.1 from hydraulic efficiency servo-valve 4 to be needed to pass sequentially through upper hydraulic pressure oil duct 3.1, oilhole 13.1, water
Flat oil-feed is to necking down 12.1, and then arrives upper hydraulic fluid chamber 9.1.Fluid enters into lower hydraulic fluid chamber 9.2 from hydraulic efficiency servo-valve 4 and needs
Passing sequentially through lower hydraulic pressure oil duct 3.2, oilhole 13.2, horizontal oil-feed is to necking down 12.2, and then arrives lower hydraulic fluid chamber 9.2.Figure
5 is conventional piston formula vibrator partial side elevation view, can be seen that high-pressure oil duct 14 and low pressure oil duct 15 are distributed in hammer body 8 in conjunction with Fig. 4
Both sides front and back, and there is a certain distance X with hammer body 8 center line AA '.High-pressure oil duct 14 is driven by driving means by input
Fluid, one end is connected with hydraulic efficiency servo-valve 4, and the other end connects manifold.Low pressure oil duct 15 is discharged by working oil chamber for output
Fluid, one end is connected with hydraulic efficiency servo-valve 4, the other end connect have manifold.Described manifold is each attached to hammer body side.Pass
The oscillating component of system piston type vibrator includes hydraulic efficiency servo-valve 4, hammer body 8, piston bushing 11 and is connected on hydraulic efficiency servo-valve 4
Part manifold.Vibrator upper end cover 1, piston rod 10.1, piston 10.2, reaction base plate 6 and column 7 are fixed.
Fluid it is filled with in working oil chamber.
During work, pressure is acted on the fluid in fluid drive hydraulic system principle and moves to high-pressure oil duct 14, hydraulic oil by driving means
Fluid is delivered to hydraulic efficiency servo-valve 4 by road 14, in the input and output of the control conventional piston formula vibrator inner fluid of hydraulic efficiency servo-valve 4
Under, it is respectively completed upwards vibration and the vibration downwards of oscillating component.During completing upwards to vibrate, hydraulic efficiency servo-valve 4 is controlled
Liquefaction liquid is input to hydraulic pressure oil duct 3.1, and enters into hydraulic fluid chamber 9.1 by oilhole 13.1, necking down 12.1.The pressure of fluid
Power will act simultaneously on piston 10.2 upper surface 10.21 and piston bushing 11 lower surface 11.1.Because of piston rod 10.1 and piston 10.2
Maintaining static, under the pressure of fluid promotes, upper end piston bushing 11 moves upward.Piston bushing 11 is fixed on hammer body 8 upper end,
Upper end piston bushing 11 drives hammer body 8 to move upward simultaneously.Along with moving upward of upper end piston bushing 11 and hammer body 8, upper hydraulic pressure
Oil pocket 9.1 becomes big, and lower hydraulic fluid chamber 9.2 diminishes.In lower hydraulic fluid chamber 9.2, original fluid passes sequentially through necking down 12.2, oilhole
13.2, lower hydraulic pressure oil duct 3.2 arrives hydraulic efficiency servo-valve 4, and fluid is input to low pressure oil duct 15 and discharges by last hydraulic efficiency servo-valve 4.
And then complete the upwards vibration of oscillating component.During completing to vibrate downwards, hydraulic efficiency servo-valve 4 controls fluid and is input to down
Hydraulic pressure oil duct 3.2, and by oilhole 13.2, necking down 12.2, enter into lower hydraulic fluid chamber 9.2, the pressure of fluid will act on simultaneously
In the lower surface 10.22 of piston 10.2 and the upper surface 11.2 of piston bushing 11.Because piston rod 10.1 and piston 10.2 maintain static,
Under the pressure of fluid promotes, lower end piston bushing 11 moves downward.Lower end piston bushing 11 is fixed on hammer body 8 through hole lower end,
Lower end piston bushing 11 drives hammer body 8 to move downward simultaneously, makes hydraulic fluid chamber 9.1 diminish.Wherein go up in hydraulic fluid chamber 9.1
Fluid passes sequentially through necking down 12.1, oilhole 13.1, upper hydraulic pressure oil duct 3.1 arrive hydraulic efficiency servo-valve 4, and last hydraulic efficiency servo-valve 4 will
Fluid is input to low pressure oil duct 15 and discharges.And then complete the downward vibration of oscillating component.
Combining Fig. 4, Fig. 5 in above-mentioned prior art, high-pressure oil duct 14 fluid produces active force to oscillating component at flex point P, described
There is distance X in active force and hammer body center line, and then piston rod is formed rotating torque, and this rotating torque can make oscillating component
The structures such as column produce horizontal applied force, and described horizontal applied force produces the dry of horizontal direction to the vertical vibration of oscillating component
Disturb, and then, affect the quality of vertical vibration institute earthquake-wave-exciting signal.
Summary of the invention
It is an object of the present invention to provide a kind of controlled source vibrator and system, to reduce oscillating component in vertical vibration mistake
Disturbing of the horizontal direction being subject in journey.
For achieving the above object, a kind of controlled source vibrator that the present invention provides, it is characterised in that: include upper end cover, upper liquid
Force feed road, lower hydraulic pressure oil duct, reaction base plate, column, hammer body, upper hydraulic fluid chamber, lower hydraulic fluid chamber, piston rod, piston,
Piston bushing, the center of hammer body offers a through hole, and the upper and lower two ends of through hole are installed with piston bushing respectively, in the through hole of hammer body
Being provided with piston rod and piston, the cross section of through hole is identical with piston maximum cross section, and it is penetrating that the center of piston bushing offers one
Hole, the cross section of through-hole is identical with piston rod cross section, and wherein, upper hydraulic pressure oil duct and lower hydraulic pressure oil duct design in piston rod
Portion and the inside of piston, upper hydraulic pressure oil duct one end for being connected with hydraulic efficiency servo-valve, the other end of upper hydraulic pressure oil duct for
Hydraulic fluid chamber communicates；Lower hydraulic pressure oil duct one end is connected with hydraulic efficiency servo-valve, and the lower hydraulic pressure oil duct other end communicates with lower hydraulic fluid chamber.
Above-mentioned a kind of controlled source vibrator also uses following scheme:
The interface installing hydraulic efficiency servo-valve it is additionally provided with on described upper end cover.
Described hammer body is rectangular blocks.
Described through hole cross section is circular.
Described through-hole cross section is circular.
The present invention also provides for a kind of earthquake controllable earthquake focus system, it is characterised in that: include driving means, hydraulic system, hydraulic efficiency servo-valve
And controlled source vibrator, wherein hydraulic efficiency servo-valve level is fixedly mounted on the upper end cover of controlled source vibrator, and,
Described controlled source vibrator, including upper end cover, upper hydraulic pressure oil duct, lower hydraulic pressure oil duct, reaction base plate, column, hammer
Body, upper hydraulic fluid chamber, lower hydraulic fluid chamber, piston rod, piston, piston bushing, the center of hammer body offers a through hole, through hole
Two ends are installed with piston bushing respectively up and down, are provided with piston rod and piston, the cross section of through hole and work in the through hole of hammer body
Plug maximum cross section is identical, and the center of piston bushing offers a through-hole, and the cross section of through-hole is identical with piston rod cross section,
Wherein, upper hydraulic pressure oil duct and lower hydraulic pressure oil duct design in piston rod inner and the inside of piston, and upper hydraulic pressure oil duct one end is used for and liquid
Pressure servo valve is connected, and the other end of upper hydraulic pressure oil duct is for communicating with upper hydraulic fluid chamber；Lower hydraulic pressure oil duct one end and hydraulic servo
Valve is connected, and the lower hydraulic pressure oil duct other end communicates with lower hydraulic fluid chamber.
Above-mentioned a kind of earthquake controllable earthquake focus system also uses following scheme:
The interface installing hydraulic efficiency servo-valve it is additionally provided with on described upper end cover.
Described hammer body is rectangular blocks.
Described through hole cross section is circular.
Described through-hole cross section is circular.
The invention has the beneficial effects as follows:
1, by piston rod inner fuel system, eliminate processing oil duct inside hammer body, piston rod will not be produced by oscillating component
Raw rotating torque, eliminates the impact that described rotating torque is brought, effectively reduces the interference of horizontal direction in vibration processes, carry
The high quality of earthquake-wave-exciting signal.
2, it is not required to inside hammer body process oil duct, makes hammer body through hole both sides be equal in weight, and then reduce oscillating component at vertical vibration
During the disturbing of horizontal direction that be subject to.Hammer body need not offer oil duct in inside simultaneously, significantly reduces the processing of hammer body
Difficulty.
3, hydraulic efficiency servo-valve does not resides at hammer body side, does not produce impact for oscillating component about the weight of through hole both sides；Liquid
Pressure servo valve is no longer with hammer body together vertical vibration, and hydraulic servo valve core is not affected by vertical vibration.Meanwhile, shake in calculating
During dynamic moiety by weight, it is no longer necessary to consider the manifold weight connected in vibration, improve the computational accuracy of oscillating component weight.
4, the flow resistance suffered by fluid is improved.In vibration processes, fluid needs through 4 in the hammer body in conventional vibrator
Individual changeover portion, needs, through 2, to greatly reduce the flow resistance too much brought because of changeover portion, improve further inside the present invention
The quality of excitation signal.
Accompanying drawing explanation
Fig. 1 is that prior art earthquake controllable earthquake focus system forms schematic diagram；
Fig. 2 is the structure sectional view of embodiment of the present invention；
Fig. 3 is the connection figure of embodiment of the present invention and hydraulic efficiency servo-valve；
Fig. 4 is conventional piston formula vibrator structure figure；
Fig. 5 is conventional piston formula vibrator partial side elevation view.
Detailed description of the invention
For the technical scheme making those skilled in the art be more fully understood that in the application, below in conjunction with in the embodiment of the present application
Accompanying drawing, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described embodiment is only
It is some embodiments of the present application rather than whole embodiments.Based on the embodiment in the application, ordinary skill people
The every other embodiment that member is obtained on the premise of not making creative work, all should belong to the model of present invention protection
Enclose.
Hereinafter a kind of embodiment of a kind of controlled source vibrator of the present invention is first introduced.Fig. 2 is that the section of the embodiment of the present invention shows
It is intended to.A kind of embodiment of a kind of controlled source vibrator includes: upper end cover 1, upper hydraulic pressure oil duct 3.1, lower hydraulic pressure oil duct 3.2,
Reaction base plate 6, column 7, hammer body 8, upper hydraulic fluid chamber 9.1, lower hydraulic fluid chamber 9.2, piston rod 10.1, piston 10.2,
Piston bushing 11.The interface installing hydraulic efficiency servo-valve 4 it is provided with on upper end cover 1.Fig. 3 shows hydraulic efficiency servo-valve 4 and this
The annexation of bright embodiment.As it is shown on figure 3, hydraulic efficiency servo-valve 4 is fixedly mounted on upper end cover 1, hydraulic efficiency servo-valve 4 is even
It is connected to manifold.Hammer body 8 is a steel rectangular blocks, and center has a through hole, through hole cross section to be circular, AA' as shown in Figure 2
Show the center line of this through hole.Described through hole two ends are installed with two piston bushinges 11, and piston bushing 11 center is offered
One through-hole, through-hole cross section is circular, the overall diameter of piston bushing 11 and through hole upper and lower two ends equal diameters.Described hammer
Piston rod 10.1 and piston 10.2 it is provided with in the through hole of body 8.Piston rod 10.1 includes being distributed in piston about 10.2 two ends
The symmetrical two parts in face.The diameter of piston rod 10.1 is equal with the interior diameter of piston bushing 11.The maximum horizontal stroke of piston 10.2
Cross section is equal with the cross section of hammer body 8 through hole.The cross section of piston rod 10.2 is identical with the through-hole cross section of piston bushing 11.
The symmetry being distributed in piston about 10.2 both ends of the surface that hammer body 8, piston bushing 11, piston rod 10.1 and piston 10.2 surround
Two working oil chambers, the working oil between piston 10.2 upper surface 10.21 and upper end piston bushing 11 lower surface 11.1
Chamber is upper hydraulic fluid chamber 9.1, the work between piston 10.2 lower surface 10.22 and lower end piston bushing 11 upper surface 11.2
Oil pocket is lower hydraulic fluid chamber 9.2.Piston rod 10.1 and piston 10.2 inside are machined with elongated hydraulic pressure oil duct, i.e. go up hydraulic pressure oil duct
3.1, lower hydraulic pressure oil duct 3.2.Upper hydraulic pressure oil duct 3.1 and hammer body center line AA ' in a vertical plane, lower hydraulic pressure oil duct
3.2 and hammer body center line AA ' in a vertical plane.Upper hydraulic pressure oil duct 3.1 is located at inside piston rod 10.1 top half
And piston 10.2 is internal, upper hydraulic pressure oil duct 3.1 one end connects with upper hydraulic fluid chamber 9.1, and the other end is direct and hydraulic efficiency servo-valve 4
It is connected.Lower hydraulic pressure oil duct 3.2 is located at piston rod 10.1 top half inside and piston 10.2 is internal, lower hydraulic pressure oil duct 3.2
One end connects with lower hydraulic fluid chamber 9.2, and the other end is directly connected with hydraulic efficiency servo-valve 4.Center line AA ' the place of hammer body 8
The right and left in cross section offers two cylindrical open-works, is inserted with column 7 in open-work respectively.The diameter of column 7 and open-work
Equal diameters.Column 7 upper end and piston rod 10.1 upper end are fixed on upper end cover 1.Column 7 lower end and piston-rod lower end are solid
It is scheduled on reaction base plate 6.In conjunction with Fig. 2, it can be seen that oscillating component includes: hammer body 8, piston bushing 11.Upper end cover 1,
The manifold that column 7, piston rod 10.1, piston 10.2, hydraulic efficiency servo-valve 4 and hydraulic efficiency servo-valve connect is fixed.Work
Make the internal full fluid of oil pocket.
During work, pressure is acted on the fluid motion in fluid drive hydraulic system principle by driving means, is controlled by hydraulic efficiency servo-valve 4
Controlled source vibrator inner fluid input and output processed, are respectively completed upwards vibration and the vibration downwards of oscillating component.At oscillating component
Upwards in vibration processes, hydraulic efficiency servo-valve 4 controls the upper hydraulic pressure oil duct 3.1 of fluid input, then into upper hydraulic fluid chamber 9.1.
The pressure of fluid will act simultaneously on piston 10.2 upper surface 10.21 and upper end piston bushing 11 lower surface 11.1, because of piston rod
10.1 and piston 10.2 maintain static.Under the pressure of fluid promotes, piston bushing 11 moves upward.Piston bushing 11 is same
Time drive hammer body 8 move upward, make lower hydraulic fluid chamber 9.2 diminish, the fluid in lower hydraulic fluid chamber 9.2 is by lower hydraulic pressure oil duct
3.2, enter into hydraulic efficiency servo-valve 4 and discharge.And then complete the upwards vibration of oscillating component.At the downward vibration processes of oscillating component
In, hydraulic efficiency servo-valve 4 controls fluid by lower hydraulic pressure oil duct 3.2, enters into lower hydraulic fluid chamber 9.2.The pressure of fluid will be with
Time act on the lower surface 10.22 of piston 10.2 and the upper surface 11.2 of lower end piston bushing 11.Because of piston rod 10.1 and work
Plug 10.2 maintains static, and under the pressure of fluid promotes, piston bushing 11 moves downward, and piston bushing 11 drives hammer simultaneously
Body 8 moves downward, and makes hydraulic fluid chamber 9.1 diminish.Fluid in upper hydraulic fluid chamber 9.1, by upper hydraulic pressure oil duct 3.1, enters
Enter and discharge to hydraulic efficiency servo-valve 4.And then complete the downward vibration of oscillating component.
For having the controlled source vibrator of above-described embodiment structure, by the change of oil-feed mode, reduce oscillating component
The purpose of the interference of horizontal direction during vertical vibration.
First, in the above-described embodiments, oil duct is offered by piston rod and internal piston, it is not necessary to inside hammer body, process high pressure
Oil duct and low pressure oil duct, it is to avoid fluid makes oscillating component piston rod be produced active force and form rotating torque, and then reaches fall
The interference of low brought horizontal direction, the final quality improving institute's earthquake-wave-exciting signal.
Secondly, there is the controlled source vibrator of above-described embodiment structure not only avoid inside hammer body, offer technique oil duct, pole
Big reduction hammer body difficulty of processing, it is also possible to the oscillating component in the present embodiment is symmetrical structure as seen in Figure 2, thus can
Ensure that oscillating component is equal in weight about through hole both sides, can eliminate and shake owing to oscillating component does not waits about through hole both sides weight
The interference of the horizontal direction formed during dynamic part vertical vibration, improves the quality of institute's earthquake-wave-exciting signal.
Then, there is the controlled source vibrator of above-described embodiment structure, it is also possible to avoid being arranged on hydraulic efficiency servo-valve hammer body one
Side, had the most both eliminated and had affected vibration section because of what hydraulic efficiency servo-valve and the manifold that is connected with hammer body were arranged on that hammer body side brought
The problem dividing centre-of gravity shift, also helps accurately determining of oscillating component quality.
Fluid is can be by flow resistance through changeover portion, and flow resistance can reduce the driving force of driving means of fluid conduction, makes to act on
The pressure of oscillating component reduces, and then affects the vibration of oscillating component, the final quality reducing institute's earthquake-wave-exciting signal.In conjunction with
Fig. 3 can be seen that 2 changeover portions between hydraulic efficiency servo-valve to working oil chamber, with conventional piston formula vibrator (in the diagram
Can be seen that the changeover portion of conventional piston formula vibrator has 4) compare, decrease multiple mistake during fluid turnover vibrator
The section of crossing, improves the flow resistance problems brought because changeover portion is too much largely, improves the quality of institute's earthquake-wave-exciting signal.
Finally introducing a kind of embodiment of a kind of earthquake controllable earthquake focus system of the present invention, Fig. 1 shows earthquake controllable earthquake focus system composition diagram.As
Shown in Fig. 1, the embodiment of a kind of earthquake controllable earthquake focus system includes: driving means S1, hydraulic system S2, hydraulic efficiency servo-valve S3,
Controlled source vibrator S4.Fig. 2 shows the structure of controlled source vibrator S4.On described controlled source vibrator S4 has
State the structure of controlled source vibrator embodiment.Fig. 3 shows that the connection of hydraulic efficiency servo-valve S3 and controlled source vibrator S4 is closed
System.As it is shown on figure 3, hydraulic efficiency servo-valve S3 level is fixedly mounted on the upper end cover of controlled source vibrator S4.
In the embodiment of earthquake controllable earthquake focus system, hydraulic efficiency servo-valve S3 controls fluid turnover controlled source vibrator S4.Watch at hydraulic pressure
Taking under the control of valve S3, the fluid of driving means S1 drive hydraulic system principle S2 is by hydraulic efficiency servo-valve S3 and enters into controlled shake
In the vibrator S4 of source.The oscillating component of controlled source vibrational system is a part of parts in controlled source vibrator S4.Fluid
Act on oscillating component by the driving force of conduction driving means S1, promote oscillating component vibration, and then produce seismic wave.
Using the earthquake controllable earthquake focus system of above-described embodiment structure, oscillating component is only a part of controlled source vibrator S4, high
Force feed road and low pressure oil duct design outside hammer body, will not produce the rotating torque during conventional piston formula vibrator works, have
Effect reduces the disturbing factor in the earthquake controllable earthquake focus system course of work；Also avoid conventional piston formula vibrator needs band hydrodynamic pressure simultaneously to watch
Take valve S3 and the manifold vibration being connected with hammer body, eliminate hydraulic efficiency servo-valve S3 and the manifold that is connected with hammer body to controlled shake
Source vibrator S4 vibrates the impact brought, and improves the quality of earthquake controllable earthquake focus system earthquake-wave-exciting signal.Meanwhile, hydraulic pressure is watched
Take valve S3 level to be fixedly mounted on the upper press cover of controlled source vibrator S4, make hydraulic efficiency servo-valve S3 no longer with oscillating component
Vertical vibration, and then, make the spool of hydraulic efficiency servo-valve S3 not affected by vertical vibration.
Above in conjunction with accompanying drawing, embodiments of the present invention are explained in detail, but the present invention are not limited to above-mentioned embodiment,
In the ken that those of ordinary skill in the art are possessed, it is also possible to make various on the premise of without departing from present inventive concept
Change.
Claims (10)
1. a controlled source vibrator, including upper end cover, upper hydraulic pressure oil duct, lower hydraulic pressure oil duct, reaction base plate, stands
Post, hammer body, upper hydraulic fluid chamber, lower hydraulic fluid chamber, piston rod, piston, piston bushing, it is characterised in that: in hammer body
The heart offers a through hole, and the upper and lower two ends of through hole are installed with piston bushing respectively, be provided with in the through hole of hammer body piston rod and
Piston, the cross section of through hole is identical with piston maximum cross section, and the center of piston bushing offers a through-hole, through-hole
Cross section is identical with piston rod cross section, and wherein, upper hydraulic pressure oil duct and the design of lower hydraulic pressure oil duct are at piston rod inner and piston
Inside, upper hydraulic pressure oil duct one end is for being connected with hydraulic efficiency servo-valve, and the other end of upper hydraulic pressure oil duct is used for and upper hydraulic fluid chamber
Communicate；Lower hydraulic pressure oil duct one end is connected with hydraulic efficiency servo-valve, and the lower hydraulic pressure oil duct other end communicates with lower hydraulic fluid chamber.
2. controlled source vibrator as claimed in claim 1, it is characterised in that: it is additionally provided with installation on described upper end cover
The interface of hydraulic efficiency servo-valve.
3. controlled source vibrator as claimed in claim 1, it is characterised in that: described hammer body is rectangular blocks.
4. controlled source vibrator as claimed in claim 1, it is characterised in that: described through hole cross section is circular.
5. controlled source vibrator as claimed in claim 1, it is characterised in that: described through-hole cross section is circular.
6. an earthquake controllable earthquake focus system, it is characterised in that: include driving means, hydraulic system, hydraulic efficiency servo-valve and controlled
Focus vibrator, wherein hydraulic efficiency servo-valve level is fixedly mounted on the upper end cover of controlled source vibrator, and,
Described controlled source vibrator, including upper end cover, upper hydraulic pressure oil duct, lower hydraulic pressure oil duct, reaction base plate, column,
Hammer body, upper hydraulic fluid chamber, lower hydraulic fluid chamber, piston rod, piston, piston bushing, the center of hammer body offers a through hole,
The upper and lower two ends of through hole are installed with piston bushing respectively, are provided with piston rod and piston in the through hole of hammer body, through hole transversal
Face is identical with piston maximum cross section, and the center of piston bushing offers a through-hole, and the cross section of through-hole is horizontal with piston rod
Cross section is identical, and wherein, upper hydraulic pressure oil duct and lower hydraulic pressure oil duct design in piston rod inner and the inside of piston, upper hydraulic pressure oil duct
One end is for being connected with hydraulic efficiency servo-valve, and the other end of upper hydraulic pressure oil duct is for communicating with upper hydraulic fluid chamber；Lower hydraulic pressure oil duct
One end is connected with hydraulic efficiency servo-valve, and the lower hydraulic pressure oil duct other end communicates with lower hydraulic fluid chamber.
7. earthquake controllable earthquake focus system as claimed in claim 6, it is characterised in that: it is additionally provided with installation liquid on described upper end cover
The interface of pressure servo valve.
8. earthquake controllable earthquake focus system as claimed in claim 6, it is characterised in that: described hammer body is rectangular blocks.
9. earthquake controllable earthquake focus system as claimed in claim 6, it is characterised in that: described through hole cross section is circular.
10. earthquake controllable earthquake focus system as claimed in claim 6, it is characterised in that: described through-hole cross section is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310491942.XA CN103760593B (en) | 2013-10-18 | 2013-10-18 | A kind of controlled source vibrator and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310491942.XA CN103760593B (en) | 2013-10-18 | 2013-10-18 | A kind of controlled source vibrator and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103760593A CN103760593A (en) | 2014-04-30 |
| CN103760593B true CN103760593B (en) | 2016-08-17 |
Family
ID=50527858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310491942.XA Active CN103760593B (en) | 2013-10-18 | 2013-10-18 | A kind of controlled source vibrator and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103760593B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749614B (en) * | 2015-04-09 | 2018-03-02 | 北京中矿大地地球探测工程技术有限公司 | Mobile well controllable focus device and its control system |
| CN107076866B (en) * | 2015-08-11 | 2019-04-12 | 深圳朝伟达科技有限公司 | A kind of accurately adjustable controlled source vibrator flat plate prestressed structure and application method |
| CN105467431B (en) * | 2016-01-08 | 2017-11-03 | 吉林大学 | Controlled source exciting force head in a kind of electro-hydraulic servo well |
| CN107037478A (en) * | 2017-06-06 | 2017-08-11 | 中国地质大学（北京） | A kind of Novel vibrator |
| CN107526100A (en) * | 2017-08-02 | 2017-12-29 | 中国石油天然气集团公司 | The prestressed structure of vibrator |
| CN107678056B (en) * | 2017-11-22 | 2024-02-02 | 机械工业勘察设计研究院有限公司 | Heavy hammer type seismic exploration source |
| CN109116408A (en) * | 2018-10-20 | 2019-01-01 | 西南石油大学 | A kind of shear wave source vibrator for seismic prospecting |
| CN111896998B (en) * | 2019-05-06 | 2024-03-01 | 中国石油天然气集团有限公司 | Controllable source vehicle monitoring method and device |
| CN111896999B (en) * | 2019-05-06 | 2023-11-28 | 中国石油天然气集团有限公司 | Vibrator and vibration signal control method |
| CN112526595A (en) * | 2019-12-28 | 2021-03-19 | 吉林大学 | Automatic pressing plate mechanism and controllable seismic source |
| CN111142152B (en) * | 2019-12-28 | 2024-12-27 | 吉林大学 | A controllable vibrator reaction force real-time adjustment system and adjustment method thereof |
| CN115728813A (en) * | 2021-08-31 | 2023-03-03 | 陈代敏 | Piston oil cylinder energy storage servo proportional control controllable seismic source low-frequency expansion device and system |
| CN116174281B (en) * | 2023-01-19 | 2024-08-23 | 核工业北京地质研究院 | Vibrator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4982811A (en) * | 1989-08-08 | 1991-01-08 | The United States Of America As Represented By The United States Department Of Energy | Fluid driven torsional dipole seismic source |
| CN1566988A (en) * | 2003-06-18 | 2005-01-19 | 中国石油集团东方地球物理勘探有限责任公司 | Double piston type controlled earthquake center vibrator |
| CN1565758A (en) * | 2003-06-18 | 2005-01-19 | 中国石油集团东方地球物理勘探有限责任公司 | Plunger type epicenter controllable osillator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1782675C (en) * | 1990-03-11 | 1992-12-23 | Магнитогорский горно-металлургический институт им.Г.И.Носова | Self-oscillating vibration exciter |
| RU2477500C1 (en) * | 2011-10-17 | 2013-03-10 | Сергей Петрович Экомасов | Seismic vibration excitation device |
-
2013
- 2013-10-18 CN CN201310491942.XA patent/CN103760593B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4982811A (en) * | 1989-08-08 | 1991-01-08 | The United States Of America As Represented By The United States Department Of Energy | Fluid driven torsional dipole seismic source |
| CN1566988A (en) * | 2003-06-18 | 2005-01-19 | 中国石油集团东方地球物理勘探有限责任公司 | Double piston type controlled earthquake center vibrator |
| CN1565758A (en) * | 2003-06-18 | 2005-01-19 | 中国石油集团东方地球物理勘探有限责任公司 | Plunger type epicenter controllable osillator |
Non-Patent Citations (2)
| Title |
|---|
| 低频地震勘探与低频可控震源;陶知非 等;《物探装备》;20110430;第21卷(第2期);第71-76页 * |
| 可控震源低频信号激发技术的最新进展;陶知非 等;《物探装备》;20100228;第20卷(第1期);第1-5页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103760593A (en) | 2014-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103760593B (en) | A kind of controlled source vibrator and system | |
| CN101487765B (en) | Three-axial vibration composite testing apparatus | |
| CA2646558C (en) | Apparatus and method for generating a seismic source signal | |
| CN109116408A (en) | A kind of shear wave source vibrator for seismic prospecting | |
| CN204009090U (en) | Combined type seismic exploration seismic source generating means | |
| CN201594144U (en) | Lower moving coil type electromagnetic controllable seismic source vibrator | |
| CN104407639A (en) | Servo control method and servo control device for high-frequency hydraulic shock excitation system | |
| CN101070893A (en) | Magnetic-fluid change type regulation-liquid column damper | |
| CN210323391U (en) | Rotatable controllable seismic source of transverse wave vibrator | |
| CN201489118U (en) | Cylinder type vibroseis vibrator | |
| CN109765022A (en) | A test device for vibration isolation system of helicopter main reducer | |
| US20210132242A1 (en) | Seismic vibrator with adjustable resonance frequency | |
| CN201425544Y (en) | Triaxial vibration composite test device | |
| US4178838A (en) | Oil porting system for dual cylinder vibrator | |
| US5331607A (en) | Sweep frequency vibrator | |
| CN205880239U (en) | A controlled source vibrator piston rod for oil and gas exploration | |
| CN113406692B (en) | Transverse wave vibration system | |
| CN208937711U (en) | A shear wave source vibrator for seismic exploration | |
| CN201518060U (en) | Electrohydraulic servo vibrating system used for seismic exploration | |
| CN209068110U (en) | A kind of textile machine support frame | |
| CN109541678B (en) | Earthquake source device for continuously adjusting impact frequency by earthquake method | |
| EP0024805A1 (en) | Hydraulic vibrator | |
| CN107869140B (en) | The vibrohammer for reducing vibration influence ambient enviroment is damped based on adjusting | |
| CN207066753U (en) | Shock absorber user terminal rubber assembly Mechanics Performance Testing device | |
| CN101958080B (en) | Earthquake simulation platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |