CN207937618U - A kind of Frequency Adjustable stratum wave excitation device - Google Patents
A kind of Frequency Adjustable stratum wave excitation device Download PDFInfo
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- CN207937618U CN207937618U CN201820427894.6U CN201820427894U CN207937618U CN 207937618 U CN207937618 U CN 207937618U CN 201820427894 U CN201820427894 U CN 201820427894U CN 207937618 U CN207937618 U CN 207937618U
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Abstract
The utility model discloses a kind of Frequency Adjustable stratum wave excitation devices, belong to earthquake exploration equipment technical field.The excitation apparatus includes：Elastic plate, L bracket, linear vibration exciter, the triangular supports being detachably arranged and frequency control case；The linear vibration exciter is installed in the L bracket, by adjusting L bracket and the elastic plate connection relation, forms compressional wave or shearing wave excited state；When the excitation apparatus is in shearing wave excitation state, two straight flanges of the triangular supports are detachably connected with first support plate and the elastic plate with first support plate and the elastic plate abutting contact and the triangular supports respectively respectively.The Frequency Adjustable stratum wave excitation device of the utility model, structure is reliable, easy to operate, and each intermodule dismounting is simple, and is designed based on traditional approach, is reequiped using existing device, more reliable stratum mode of excitation is provided for front man.
Description
Technical field
The utility model is related to earthquake exploration equipment technical fields, and in particular to a kind of Frequency Adjustable stratum wave excitation device.
Background technology
In recent years, each Main Seismic Areas band earthquake in the world takes place frequently, and seismic energy is by stratum media with shearing wave wave and compression
The form of wave is propagated, and to influence underground, earth's surface mankind's activity, causes considerable damage.In China, also occurred in history very much
Destructive prodigious earthquake is very with Tangshan Earthquake, Wenchuan earthquake, it can be seen that, earthquake disaster is to people's lives and properties
Safety causes great threat.
The shearing wave or compressional wave velocity of wave parameter of Rock And Soil medium, in earthquake pre-warning, Aseismic Design, the assessment of special place
Play irreplaceable role.The mode of excitation of traditional shearing wave or compressional wave hammers for user's work, but inputs stratum shake
Amplitude, the frequency of dynamic signal are uncontrollable, and signal is not also reproducible, are unfavorable for carrying out repetition measurement to same gaging hole, increase
Error source in the wave velocity testing of stratum.In addition, the excitation wave source that existing excitation apparatus generates is single wave source, can not swash simultaneously
Send out shearing wave and compressional wave.
Utility model content
The purpose of this utility model is to provide a kind of Frequency Adjustable stratum wave excitation devices, are swashed with solving existing earthquake source
The problem that originating party formula detection error is big, explosive source is single.
The technical solution that the utility model solves above-mentioned technical problem is as follows：
A kind of Frequency Adjustable stratum wave excitation device, including：Elastic plate, is set to L at the L bracket being set on elastic plate
Linear vibration exciter, the triangular supports being detachably arranged on shape holder and the frequency control being electrically connected with linear vibration exciter
Case；L bracket include the first support plate and with the first support plate the second support plate connected vertically, straight line is installed on the first support plate and is swashed
Shake device, and the exciting force direction of linear vibration exciter is vertical with the first support plate；First support plate or the second support plate are connect with elastic plate, will
L bracket is fixed on elastic plate and is formed compressional wave or shearing wave excited state；When excitation apparatus is in shearing wave excitation state
When, two straight flanges of triangular supports are respectively with the first support plate and elastic plate abutting contact and triangular supports respectively with first
Support plate and elastic plate are detachably connected.
The linear vibration exciter for generating focus is arranged in L bracket the utility model, by the installation for changing L bracket
Mode realizes the switching of compressional wave and shearing wave excitaton source.Specifically, linear vibration exciter is arranged on L-shaped first support plate, and
Generate the exciting force perpendicular to the first support plate.When needing to generate shearing wave exciting source, L-shaped second support plate is fixed with elastic plate
Connection, the first support plate is vertical with elastic plate at this time, state in a vertical shape, the exciting force that the linear vibration exciter on the first support plate generates
In the horizontal direction, the shearing wave transmitted along ground level is consequently formed, forms shearing wave excited state.When need generate compressional wave
When exciting source, L-shaped first support plate is fixedly connected with elastic plate, and the second support plate is vertical with elastic plate at this time, state in a vertical shape；
Vertically, the compressional wave along ground vertical transmission is consequently formed in the exciting force that linear vibration exciter on first support plate generates,
Form compressional wave excited state.
The utility model is passed by L bracket by horizontal direction exciting force caused by straight line exciting source or vertically to exciting force
It is delivered to elastic plate, is coupled with surface of stratum soil layer by elastic plate, shearing wave or pressure can be inputted to the surface of stratum soil body
Contracting wave.
The rotating speed that linear vibration exciter motor is controlled by frequency control case, to generate shearing wave or the compression of different frequency
Wave.
This practical A-frame is used to consolidate L bracket, while cutting generation in output shearing wave exciting source
It cuts wave to be transferred on elastic plate, and then is input to surface of stratum.
Further, in the utility model preferred embodiment, above-mentioned linear vibration exciter synchronizes opposite rotation including two
The motor turned, the output shafts of two motors towards on the contrary, and two output shafts it is parallel with the first support plate, each output shaft
End is equipped with eccentric block.
Linear vibration exciter generates an exciting force perpendicular to the first support plate by the eccentric block of output shaft, inclined by adjusting
The quality size of heart block adjusts the amplitude size of discipline vibration wave.
Further, in the utility model preferred embodiment, above-mentioned linear vibration exciter further includes the case for accommodating motor
The output shaft of body, two motors is each passed through babinet so that the both sides that the eccentric block in output shaft end is exposed to babinet are arranged.
Further, in the utility model preferred embodiment, the length of above-mentioned second support plate is more than the first support plate
Length.
The length of second support plate is more than the length of the first support plate, and design is advantageous in that in this way, because being set on the first support plate
There is a linear vibration exciter, vacant on the second support plate, in order to ensure under shearing wave excitation state, the stability of whole device is vacant
Its length of second support plate is longer more advantageous for the entire L bracket of fixation, if conversely, the length of the second support plate is less than the first support plate
Length when can then linear vibration exciter be made to vibrate, L bracket generates a degree of shaking.
The utility model has the advantages that：
The Frequency Adjustable stratum wave excitation device of the utility model, structure is reliable, easy to operate, and each intermodule dismounting is simple,
And designed based on traditional approach, it is reequiped using existing device, providing more reliable stratum for front man swashs
Originating party formula.
Description of the drawings
Fig. 1 is structural schematic diagram of the excitation apparatus of the utility model under compressional wave excited state；
Fig. 2 is structural schematic diagram of the excitation apparatus of the utility model under shearing wave excited state.
In figure：100- excitation apparatus；110- elastic plates；120-L shape holders；The first support plates of 121-；The second support plates of 122-；
130- linear vibration exciters；131- babinets；132- output shafts；133- eccentric blocks；140- frequency control casees；150- triangular supports.
Specific implementation mode
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining this practicality
It is novel, it is not intended to limit the scope of the utility model.
Embodiment
Referring to Fig.1 and 2, the Frequency Adjustable stratum wave excitation device 100 of the present embodiment, including：Elastic plate 110, setting
In the L bracket 120 on elastic plate 110, the linear vibration exciter 130 and and linear vibration exciter that are set in L bracket 120
The frequency control case 140 of 130 electrical connections.
Referring to Fig.1 and 2, L bracket 120 include the first support plate 121 and with the first support plate 121 connected vertically the
Two support plates 122.The length of second support plate 122 is more than the length of the first support plate 121.Straight line exciting is installed on first support plate 121
Device 130, the exciting force direction of linear vibration exciter 130 are vertical with the first support plate 121.Linear vibration exciter 130 and the first support plate 121 are logical
Bolt is crossed to be fixedly connected.First support plate 121 or the second support plate 122 are connect with elastic plate 110, and L bracket 120 is fixed to bullet
On property plate 110 and form compressional wave or shearing wave excited state.
Fig. 2 is please referred to, excitation apparatus 100 further includes the triangular supports 150 being detachably arranged.Triangular supports 150
It is detachably connected by bolt.As shown in Fig. 2, when excitation apparatus 100 is in shearing wave excitation state, triangular supports
150 two straight flanges are respectively with the first support plate 121 and 110 abutting contact of elastic plate and triangular supports 150 respectively with first
Support plate 121 and elastic plate 110 are detachably connected.As shown in Figure 1, when excitation apparatus 100 is in compressional wave excitation state, directly will
First support plate 121 is connect with elastic plate 110, is not needed triangular supports 150 at this time and is attached fixation.
Referring to Fig.1 and 2, linear vibration exciter 130 includes the motor of two synchronous opposite direction rotatings, the output of two motors
Axis 132 towards on the contrary, and two output shafts 132 it is parallel with the first support plate 121, the end of each output shaft 132 is equipped with inclined
Heart block 133.Linear vibration exciter 130 further includes the babinet 131 for accommodating motor, and the output shaft 132 of two motors is each passed through babinet
131 so that the both sides that the eccentric block 133 in 132 end of output shaft is exposed to babinet 131 are set.
The course of work of the utility model is illustrated below.
The utility model, will be horizontal caused by linear vibration exciter 130 by L bracket 120 and triangular supports 150
It is transmitted to band elastic plate 110 to exciting force or vertically to exciting force, is coupled, is made with surface of stratum soil layer by elastic plate 110
It can input shearing wave or compressional wave to the surface of stratum soil body.
When specific test, by ground elastic plate 110 be positioned over it is smooth after place to be measured, to ensure elastic plate 110 and ground
Contact is good, can suitably sprinkle water between plank and ground.Linear vibration exciter 130 makes two motors drive eccentric block after powering on
133 opposite synchronous rotations, generate the sinusoidal wave exciting force perpendicular to machine shaft, pass through frequency control case 140 and control motor turn
Speed generates shaking for shock wave to generate the shearing wave wave or compressional wave of different frequency by adjusting 133 quality control of eccentric block
Width.When the first support plate 121 is fixedly connected with elastic plate 110, linear vibration exciter 130 is on elastic plate 110, and it is vertical to generate
Compressional wave, as shown in Figure 1；When the second support plate 122 is fixedly connected with elastic plate 110, linear vibration exciter 130 is located at and elastic plate
On 110 the first vertical support plates 121, lateral shearing wave is produced, as shown in Figure 2.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (4)
1. a kind of Frequency Adjustable stratum wave excitation device, which is characterized in that including：Elastic plate, the L-shaped being set on the elastic plate
Holder, the linear vibration exciter being set in the L bracket, the triangular supports being detachably arranged and with the straight line exciting
The frequency control case of device electrical connection；
The L bracket include the first support plate and with first support plate the second support plate connected vertically, first support plate
On the linear vibration exciter is installed, the exciting force direction of the linear vibration exciter is vertical with first support plate；Described first
Support plate or second support plate are connect with the elastic plate, and the L bracket is fixed on the elastic plate and forms pressure
Contracting wave or shearing wave excited state；When the excitation apparatus is in shearing wave excitation state, two of the triangular supports are straight
Side respectively with first support plate and the elastic plate abutting contact and the triangular supports respectively with first support plate
It is detachably connected with the elastic plate.
2. Frequency Adjustable stratum according to claim 1 wave excitation device, which is characterized in that the linear vibration exciter includes two
The motor of a synchronous opposite direction rotating, the output shafts of two motors towards on the contrary, and two output shafts with first support plate
Parallel, the end of each output shaft is equipped with eccentric block.
3. Frequency Adjustable stratum according to claim 2 wave excitation device, which is characterized in that the linear vibration exciter further includes
The babinet of motor is accommodated, the output shaft of two motors is each passed through the babinet so that be arranged in the output shaft end
Eccentric block be exposed to the both sides of the babinet.
4. Frequency Adjustable stratum according to claim 1 wave excitation device, which is characterized in that the length of second support plate is big
In the length of first support plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820427894.6U CN207937618U (en) | 2018-03-27 | 2018-03-27 | A kind of Frequency Adjustable stratum wave excitation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820427894.6U CN207937618U (en) | 2018-03-27 | 2018-03-27 | A kind of Frequency Adjustable stratum wave excitation device |
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| Publication Number | Publication Date |
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| CN207937618U true CN207937618U (en) | 2018-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820427894.6U Active CN207937618U (en) | 2018-03-27 | 2018-03-27 | A kind of Frequency Adjustable stratum wave excitation device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110161558A (en) * | 2019-06-18 | 2019-08-23 | 广东石油化工学院 | A kind of high efficiency elasticity wave-exciting device used convenient for exploration |
| CN110333295A (en) * | 2019-08-05 | 2019-10-15 | 河北中核岩土工程有限责任公司 | Ground core sample wave velocity testing system and method |
-
2018
- 2018-03-27 CN CN201820427894.6U patent/CN207937618U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110161558A (en) * | 2019-06-18 | 2019-08-23 | 广东石油化工学院 | A kind of high efficiency elasticity wave-exciting device used convenient for exploration |
| CN110161558B (en) * | 2019-06-18 | 2021-03-12 | 广东石油化工学院 | High-efficiency elastic wave exciter convenient for surveying and use |
| CN110333295A (en) * | 2019-08-05 | 2019-10-15 | 河北中核岩土工程有限责任公司 | Ground core sample wave velocity testing system and method |
| CN110333295B (en) * | 2019-08-05 | 2024-03-26 | 河北中核岩土工程有限责任公司 | Rock-soil core sample wave speed testing system and method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 74, Nongye Road, Jinshui District, Zhengzhou, Henan 450002 Patentee after: China Nuclear Power Survey, design and Research Co.,Ltd. Patentee after: SOUTHWEST JIAOTONG University Patentee after: CHINA NUCLEAR ENGINEERING & CONSTRUCTION Corp.,Ltd. Address before: No. 27 Huayuan Road, Zhengzhou, Henan 450002 Patentee before: ZHENGZHOU CNEC GEOTECHNICAL ENGINEERING CO.,LTD. Patentee before: SOUTHWEST JIAOTONG University Patentee before: CHINA NUCLEAR ENGINEERING & CONSTRUCTION Corp.,Ltd. |
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| CP03 | Change of name, title or address |