CN104062679A - Seismic SH wave three-dimensional exploration earthquake source device - Google Patents
Seismic SH wave three-dimensional exploration earthquake source device Download PDFInfo
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- CN104062679A CN104062679A CN201410283669.6A CN201410283669A CN104062679A CN 104062679 A CN104062679 A CN 104062679A CN 201410283669 A CN201410283669 A CN 201410283669A CN 104062679 A CN104062679 A CN 104062679A
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Abstract
The invention relates to a seismic SH wave three-dimensional exploration earthquake source device which comprises a stepping motor, a servo controller group, a transmission shaft and an earthquake-exciting box body. The stepping motor carries an encoder itself; the encoder is electrically connected with the servo controller group through a connecting line; the shaft center of the output shaft of the motor is connected with the transmission shaft through a bearing; the transmission shaft is equipped with fan blades; the fan blades are connected with the outer disc of the earthquake-exciting box body; the earthquake-exciting box body takes the motor shaft center as a center shaft and is provided with an upper cover, an inner disc and the outer disc, wherein the upper cover is connected with the outer disc, and the bottom portions of the inner disc and outer disc are welded with spike teeth; the motor shaft center passes through the center of the inner disc; the tail end of the shaft center is welded to a bottom cone; the inner disc bottom cone and the spike teeth enable the device to be fixedly arranged on the ground; the motor drives the fan blades through the transmission shaft, and the fan blades drive the outer disc to rotate around the inner disc; and the rotation of the outer disc enables the spike teeth on the bottom portion of the outer disc to generate tangential vibration with the ground, thereby generating SH waves at various directions. The device is concise in structure, portable, convenient to transport, and adjustable in power, and can provide enough seismic exploration energy and meet various geology field exploration, such as engineering investigation and metal mine exploration and the like.
Description
Technical field
The present invention relates to the three-dimensional focus exploration device of a kind of earthquake SH ripple, belong to earthquake, geological exploration techniques field.
Background technology
Shear wave, compared with compressional wave, has that speed is low, frequency is low, wavelength is short, and is not subject to the advantage of influence on groundwater.Therefore, shear wave earthquake exploration can reach longitudinal wave earthquake exploration institute's resolution that is beyond one's reach and degree of accuracy, can better survey cover thickness and the little structure of underlying bedrock thereof in the Quaternary period.
Shear wave has two types, and one is SV ripple, refers to the shear wave of particle in the vertical guide internal vibration including ray, and the propagation rays of the oscillation and wave of particle is all by the vertical guide of survey line, and horizontal geophone is arranged along directions X; One is SH ripple, is the shear wave of particle in surface level internal vibration, and when ripple is propagated in ray plane, the vibration of particle is in the surface level internal vibration perpendicular to ray plane, and horizontal geophone is arranged along Y-direction.
In the time that incident wave is SH ripple, only produce similar reflection and transmitted wave, and the conversion of waveform does not occur, namely so-called spontaneous ripple, is mainly because the direction of vibration of SH ripple has determined that it does not have normal component, only has displacement component.SH ripple does not produce transformed wave through interface time, has very large advantage in engineering investigation.
Utilizing vibroseis earthquake-wave-exciting, is the important technology that carries out seismic prospecting.Therefore develop and a kind ofly can control the focus that produces earthquake wave frequency, energy size, ripple type, play a part more and more importantly in geological mapping field, the particularly focus of 3-D seismics SH ripple, plays conclusive effect for carrying out the three-dimensional exploration of SH ripple.
Summary of the invention
The object of the invention is in the exploration of SH ripple, provide a kind of employing have for excitation mode, can produce more single earthquake SH ripple, be applicable to engineering geological investigation, also can be used for ore exploration and lighter SH ripple seismic source apparatus, to meet the demand of exploration.
For achieving the above object, the technical scheme that the present invention takes is: provide a kind of earthquake SH ripple three-dimensional focus exploration device, comprise stepper motor, servo controller group, transmission shaft, the focus casing that impulses, described stepper motor inside carries scrambler, and scrambler is electrically connected with servo controller group by connecting line; The output shaft axle center of stepper motor is by bearing connection for transmission axle, and transmission shaft rotates with axle center, and flabellum is installed on transmission shaft, and the impulse outer disk of casing of flabellum and focus is connected; The described focus casing axle centered by the output shaft axle center of stepper motor that impulses, the focus casing that impulses is made up of upper cover and inside and outside dish, and upper cover is connected with outer disk, and described inside and outside tray bottom is all welded with metal spike-tooth; The output shaft axle center of stepper motor, through the center of inner disc, is welded with the base cone of metal at the axle center end of inner disc bottom, the base cone of inner disc bottom and spike-tooth are for being fixed on ground by device; Stepper motor drives flabellum to drive outer disk, upper cover to rotate around inner disc by transmission shaft, and outer disk is rotated and made to produce tangential vibration between the spike-tooth of outer tray bottom and ground, produces the SH ripple of all directions.
Described servo controller group comprises signal generator and servo-driver.
The metal spike-tooth of the described inside and outside tray bottom of casing that impulses is the metal Rhizoma Sparganii centrum of welding symmetrically and evenly, and the spike-tooth of inner disc compares the intensive of outer disk, and inner disc inserts the friction force between ground aggrandizement apparatus and ground by spike-tooth and base cone.
The weight that the described casing that impulses, transmission shaft and the combination of servo controller group are installed is less than 30KG.
The flabellum of installing on described transmission shaft is symmetrically arranged, and flabellum is provided with the gim peg of gaining in weight.
Between the three-dimensional focus exploration device of earthquake SH ripple of the present invention inner disc, outer disk, there is certain space, ensure that two dishes do not rub in rotary course.The weight of casing, stepper motor, servo-driver and transmission shaft of impulsing is less than 30KG, general assembly (TW) can be on the gim peg of flabellum symmetrical increasing, to adapt to different weight and energy requirement.
More spike-tooth is arranged at the impulse inner disc bottom of casing of device of the present invention, can firmly grasp well ground, outer disk has a circle spike-tooth, the spike-tooth negligible amounts of inner disc relatively, under the driving of transmission shaft, flabellum drives outer disk rotation, and spike-tooth and the ground of inverted position turn bottom having quoted is tangent, produce shearing force, inspire SH ripple.
The three-dimensional focus exploration device of earthquake SH ripple of the present invention tool has the following advantages:
1, the present invention is by the control of servo controller group and produces frequency of operation, and therefore its working signal and fundamental characteristics can manual controls, can be in the time of design focus sweep signal avoid interference signal, improve the resolution of self signal.
2, the mode that impulses in device of the present invention and adopt transmission shaft to be connected between casing and stepper motor, has greatly reduced interfering with each other while impulsing casing vibrations and between stepper motor, has improved the resolution of signal.
3, device of the present invention is Portable small controllable earthquake focus combined device, and the weight that the casing that impulses, transmission shaft and the combination of servo controller group are installed is less than 30KG.Device adopts Modular assembled, and convenient transportation, is applicable to seismic prospecting, and ore exploration etc. are with a varied topography, vehicle is difficult for the place arriving, and Modular assembled mode is convenient to dismounting and transport.
Brief description of the drawings
Fig. 1 is the positive cross-sectional schematic of the structure of the three-dimensional focus exploration device of earthquake SH ripple of the present invention.
Fig. 2 is the schematic top plan view of removing upper cover and motor top in Fig. 1 of the present invention.
Fig. 3 looks schematic diagram in the end of Fig. 1 of the present invention.
Fig. 4 is the workflow diagram of the three-dimensional focus exploration device of earthquake SH ripple of the present invention.
In above-mentioned figure: 1-transmission shaft, 2-axle center, 3-upper cover, 4-flabellum, 5-gim peg, 6-stepper motor, 7-scrambler, 8-servo-driver, 9-signal generator, 10-inner disc, 11-outer disk, 12-base cone, 13-spike-tooth.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment 1: the invention provides the three-dimensional focus exploration device of a kind of earthquake SH ripple, its structure as shown in Figure 1, 2, 3.Device comprises stepper motor 6, servo controller group, transmission shaft 1, the focus casing that impulses, and described stepper motor 6 is the inner two-phase hybrid stepping motor that carries scrambler 7, and scrambler 7 is electrically connected with servo controller group by connecting line.
One, servo controller group
Referring to Fig. 1,4, described servo controller group comprises signal generator 9 and servo-driver 8, signal generator 9 is selected the AWG (Arbitrary Waveform Generator) of the 33250A80MHZ of Agilent company of U.S. production, by the two-phase hybrid stepping motor of a 0.75KW of servo controller control.
Two, stepper motor and transmission shaft
The output shaft axle center 2 of stepper motor 6 is by bearing connection for transmission axle 1, transmission shaft rotates with axle center 2, referring to Fig. 1,2, between stepper motor and flabellum 4, connect with transmission shaft 1, the flabellum 4 of installing on transmission shaft 1 is symmetrically arranged, flabellum 4 is provided with the gim peg 5 of gaining in weight, and can increase and decrease gim peg 5 weight to adapt to excite the demand of different-energy by symmetry.The impulse outer disk 11 of casing of flabellum 4 and focus is connected; Stepper motor 6 relies on counter-force to drive transmission shaft to rotate.
Three, the focus casing that impulses
Referring to Fig. 1,3, the focus casing axle centered by the output shaft axle center 2 of stepper motor 6 that impulses, the focus casing that impulses comprises upper cover 3, inner disc 10 and outer disk 11, upper cover 3 is connected with outer disk 11, flabellum 4 is also connected with outer disk 11.
In the present embodiment, inner disc 10 bottoms are welded with 32 spike-tooths 13 symmetrically and evenly, the quantity of the relative inner disc of spike-tooth that outer disk 11 is welded is few, only have 25 spike-tooths 13, the output shaft axle center 2 of stepper motor 6 is through inner disc 10 center, be welded with the base cone 12 of metal at the axle center of inner disc 10 bottoms 2 ends, device is fixed on tightly ground by base cone 12 and the spike-tooth 13 of inner disc bottom; Under the driving of transmission shaft 1, flabellum 4 drives outer disk 11 to rotate, and outer disk 11 rotations cause that the spike-tooth 13 of outer tray bottom is tangent with ground, produce shearing force, inspire along the SH ripple of all tangential direction of outer disk outer rim.
Embodiment 2: the invention provides the three-dimensional focus exploration device of a kind of earthquake SH ripple, its structure is substantially the same manner as Example 1, different just stepper motors 6 adopt three-phase servo asynchronous machine, and device workflow of the present invention, referring to Fig. 4.
(1) servo controller group is made up of signal generator 9 and servo-driver 8, servo controller group is the control section of vibroseis, by signal generator 9 manual controls and produce frequency of operation, the pulse train of signal generator internal preset is sent to servo-driver 8,10000 pulses of every transmission, the axle center 2 of three-phase servo asynchronous machine once turns.Due to the source pattern device that the present invention is Portable small, therefore its working signal and fundamental characteristics can be controlled, can be in the time of design focus sweep signal avoid interference signal, reach the resolution that improves self signal.
(2) three-phase servo asynchronous machine rotates and drives transmission shaft 1 to drive flabellum 4 to drive outer disk 11, upper cover 3 to rotate around inner disc 10, outer disk 11 is rotated and is made to produce tangential vibration between the spike-tooth 13 of outer tray bottom and ground, inspires along the SH ripple of all tangential direction of outer disk outer rim.
The part that the present invention does not relate to all can adopt existing techniques in realizing.
Claims (5)
1. the three-dimensional focus exploration device of earthquake SH ripple, comprises stepper motor, servo controller group, transmission shaft, the focus casing that impulses, and it is characterized in that: described stepper motor inside carries scrambler, and scrambler is electrically connected with servo controller group by connecting line; The output shaft axle center of stepper motor is by bearing connection for transmission axle, and transmission shaft rotates with axle center, and flabellum is installed on transmission shaft, and the impulse outer disk of casing of flabellum and focus is connected; The described focus casing axle centered by the output shaft axle center of stepper motor that impulses, the focus casing that impulses is made up of upper cover and inside and outside dish, and upper cover is connected with outer disk, and described inside and outside tray bottom is all welded with metal spike-tooth; The output shaft axle center of stepper motor, through the center of inner disc, is welded with the base cone of metal at the axle center end of inner disc bottom, the base cone of inner disc bottom and spike-tooth are for being fixed on ground by device; Stepper motor drives flabellum to drive outer disk, upper cover to rotate around inner disc by transmission shaft, and outer disk is rotated and made to produce tangential vibration between the spike-tooth of outer tray bottom and ground, produces the SH ripple of all directions.
2. the three-dimensional focus exploration device of earthquake SH ripple according to claim 1, is characterized in that: described servo controller group comprises signal generator and servo-driver.
3. the three-dimensional focus exploration device of earthquake SH ripple according to claim 1, it is characterized in that: the metal spike-tooth of the described inside and outside tray bottom of casing that impulses is the metal Rhizoma Sparganii centrum of welding symmetrically and evenly, the spike-tooth of inner disc compares the intensive of outer disk, and inner disc inserts the friction force between ground aggrandizement apparatus and ground by spike-tooth and base cone.
4. according to the three-dimensional focus exploration device of the described earthquake SH ripple of claim 1, it is characterized in that: the weight that the described casing that impulses, transmission shaft and the combination of servo controller group are installed is less than 30KG.
5. according to the three-dimensional focus exploration device of the described earthquake SH ripple of claim 1, it is characterized in that: the flabellum of installing on described transmission shaft is symmetrically arranged, and flabellum is provided with the gim peg of gaining in weight.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410283669.6A CN104062679B (en) | 2014-06-23 | 2014-06-23 | A kind of earthquake SH ripple three-dimensional focus exploration device |
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| CN201410283669.6A CN104062679B (en) | 2014-06-23 | 2014-06-23 | A kind of earthquake SH ripple three-dimensional focus exploration device |
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| CN104062679A true CN104062679A (en) | 2014-09-24 |
| CN104062679B CN104062679B (en) | 2016-06-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974462A (en) * | 2016-05-14 | 2016-09-28 | 刘洋 | Intelligent seismic exploration system based IOT (Internet of Things) |
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| US5187331A (en) * | 1991-03-28 | 1993-02-16 | Agency Of Industrial Science And Technology | SH wave generator |
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| CN203012147U (en) * | 2012-10-30 | 2013-06-19 | 中国石油集团川庆钻探工程有限公司地球物理勘探公司 | Portable shear wave source device |
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Patent Citations (7)
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| US3280935A (en) * | 1963-05-27 | 1966-10-25 | Continental Oil Co | Seismic torsional wave generator |
| US5187331A (en) * | 1991-03-28 | 1993-02-16 | Agency Of Industrial Science And Technology | SH wave generator |
| CN2821597Y (en) * | 2005-09-14 | 2006-09-27 | 四川石油管理局 | Transverse wave focus collision device |
| CN201247322Y (en) * | 2008-08-19 | 2009-05-27 | 北京中地国振科技有限公司 | Fixed linear precise controllable active earthquake seismology seismical origin device |
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| CN202794549U (en) * | 2012-07-23 | 2013-03-13 | 中国神华能源股份有限公司 | Shear wave seismic focus base used for geological exploration system |
| CN203012147U (en) * | 2012-10-30 | 2013-06-19 | 中国石油集团川庆钻探工程有限公司地球物理勘探公司 | Portable shear wave source device |
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| KOSHUN YAMAOKA,ET AL.: "A trial for monitoring temporal variation of seismic velocity using an ACROSS system", 《THE ISLAND ARC》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974462A (en) * | 2016-05-14 | 2016-09-28 | 刘洋 | Intelligent seismic exploration system based IOT (Internet of Things) |
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Address after: 450003 No. 8, 3rd Street, Zhengzhou, Henan Co-patentee after: CHINA UNIVERSITY OF GEOSCIENCES (WUHAN CITY) Patentee after: Yellow River Survey Planning and Design Research Institute Co., Ltd. Address before: 450003 No. 8, 3rd Street, Zhengzhou, Henan Co-patentee before: CHINA UNIVERSITY OF GEOSCIENCES (WUHAN CITY) Patentee before: Yellow River Engineering Consulting Co., Ltd. |