CN209656902U - A kind of seismic signal excitation apparatus of linear motor driving - Google Patents
A kind of seismic signal excitation apparatus of linear motor driving Download PDFInfo
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- CN209656902U CN209656902U CN201920608409.XU CN201920608409U CN209656902U CN 209656902 U CN209656902 U CN 209656902U CN 201920608409 U CN201920608409 U CN 201920608409U CN 209656902 U CN209656902 U CN 209656902U
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- linear motor
- seismic signal
- spring
- excitation apparatus
- counterweight
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Abstract
The utility model discloses a kind of seismic signal excitation apparatus of linear motor driving, it is made of pedestal, shell, leaf spring, bottom guide holder, spring, dead ring, linear motor stator electric, coil, coil brace, heat release hole, screw, top guide seat, guiding trestle, linear motor rotor, counterweight etc., leaf spring and bottom guide holder are fixed on bottom plate；Linear motor rotor and coil brace are fixed on the guide holder of bottom, linear motor rotor and with reconnection, allow linear motor to drive counterweight to move together when doing periodic reciprocating motion；During this period, linear motor rotor and counterweight apply the load of property loading period to spring and leaf spring respectively, to form unique seismic signal and spread out of via bottom plate.Stablized compared with conventional hydraulic seismic signal excitation apparatus because the control of the linear motor controls more stability and high efficiency, the utility model than conventional hydraulic system, possessing original advantage in the function of reliable seismic signal.
Description
Technical field
The utility model relates to geographical Exploration Domain, the seismic signal excitation apparatus of specifically a kind of linear motor driving.
Background technique
Seismic signal excitation apparatus is a kind of essential equipment of geographical investigation and prospecting, and current main earthquake swashs
Originating party formula mainly include explosive shooting, weight excitation, ram excitation, fluid pressure type controlled source excitation etc..In engineering practice often
Mode of excitation is explosive shooting, but explosive shooting can cause serious pollution to environment, banned in many areas
Only use；It the use of more mode of excitation is at present the excitation of fluid pressure type controlled source, although avoiding the pollution to environment,
Hydraulic structure also seriously limits the frequency bandwidth of excitation signal, and the excitation signal quality of generation is restricted.
The seismic signal excitation apparatus of linear motor driving is a kind of novel on-explosive seismic signal excitation apparatus, is utilized
The characteristics of linear motor motion state is convenient for control, the seismic signal excitation apparatus can motivated frequency bands be wider according to demand, quality
Higher earthquake stimulation signal, and not can cause environmental pollution.
Utility model content
The hydraulic controlled source excitation signal frequency-bandwidth limited aiming at the problem that, a kind of linear motor driving of utility model
Seismic signal excitation apparatus
A kind of seismic signal excitation apparatus of linear motor driving comprising bottom plate, leaf spring, spring, bottom guide holder, institute
It states leaf spring and bottom guide holder is fixed on bottom plate, spring is located at bottom guide holder center, so that the linear motor rotor exists
It can be acted on spring when doing periodic reverse linear motion.
Linear motor driving seismic signal excitation apparatus include the side of being placed on spring dead ring, dead ring not with institute
The connection of bottom guide holder is stated, the linear motor rotor can be followed to axially move, plays the isolation linear motor rotor
With the effect of spring, prevents spring to be magnetized and influence its arousal function.
The seismic signal excitation apparatus of linear motor driving includes a guiding trestle perpendicular to pedestal, is located at described
Bottom guide holder, spring, electric mover, counterweight, top guide seat center, can be with limited spring, electric mover, counterweight movement side
To so that movement is more stable.
The seismic signal excitation apparatus of linear motor driving includes linear motor, by the linear motor rotor, coil branch
Frame, coil, linear motor stator electric composition drive stable past with reforming under the limitation of the bottom guide holder and guiding trestle
Linear motion, and the adjustment of the motion states such as motion frequency can be made a change at any time during the motion.
The seismic signal excitation apparatus of linear motor driving includes counterweight, is linked together with the linear motor rotor,
As its linear reciprocating motion moves together, it is applied on the leaf spring and swashs while linear motor rotor acts on spring
Send out seismic signal.
The seismic signal excitation apparatus of linear motor driving further includes top guide seat, passes through screw and the cage connection
Together, restricted guidance backing positions keep its stability.
The seismic signal excitation apparatus of linear motor driving further includes shell, and the seismic signal which drives is swashed
Transmitting apparatus integrally covers, and prevents external interference factor from influencing it and works normally and be not connected with the bottom plate, prevents the shake of bottom plate
Dynamic be transmitted on shell has an impact itself work.
The seismic signal excitation apparatus of linear motor driving further includes heat release hole, is located at the top and bottom of the shell
Portion is annularly distributed on the shell for round cavernous structure, and the seismic signal excitation apparatus for linear motor driving provides heat dissipation
Channel.
Detailed description of the invention
Fig. 1 is a kind of sectional view of the seismic signal excitation apparatus of linear motor driving of the utility model.
Fig. 2 is a kind of stereogram exploded view of the seismic signal excitation apparatus of linear motor driving of the utility model.
Specific embodiment
Hereinafter reference will be made to the drawings is more fully described the utility model.
Fig. 1, Fig. 2 are a kind of stereogram exploded view of seismic signal excitation apparatus of linear motor driving of the utility model and cut
Face figure.Linear motor driving seismic signal excitation apparatus include pedestal 1, shell 2, leaf spring 3, bottom guide holder 4, spring 5, absolutely
Edge ring 6, linear motor stator electric 7, coil 8, coil brace 9, heat release hole 10, screw 11, top guide seat 12, guiding trestle 13,
Linear motor rotor 14, counterweight 15.
Seismic signal excitation apparatus leaf spring 3, bottom guide holder 4, the spring 5 of linear motor driving as shown in Figure 1 and Figure 2 are solid
It is scheduled on pedestal 1, linear motor rotor 14 drives counterweight 15 to do linear reciprocating motion, so that the movement of linear motor is converted to
The form of mechanical oscillation signal is spread out of in a manner of seismic wave to underground, to achieve the purpose that substitute the excitation of explosive seismic signal,
And possess more stable waveform than general earthquake signal excitation device.
Linear motor includes linear motor stator electric 7, coil 8, coil brace 9, electric mover 14,7 He of linear motor stator electric
Coil brace 9 is fixed on bottom guide holder 4, and linear motor rotor 14 is located in the middle part of linear motor, can be by guiding branch
The limitation of frame 13 and bottom guide holder 4 drives counterweight 15 to do straight reciprocating motion.Coil 8 is enameled wire, is in around coil brace 9
Helically coiling after inside is passed through electric current, can form stationary magnetic field, and week occurs for the linear motor rotor 7 for being driven to magnetic material
Phase property linear reciprocating motion, by changing, the size of electric current and the frequency of driving signal can real-time control straight lines in coil 8
The motion state of motor.
There are a dead rings 6 before linear motor rotor 14 and spring 5, can effectively completely cut off the straight line for magnetic material
Magnetic transmitting between electric mover 14 and spring 5, prevents the magnetism of linear motor motivation 14 from magnetizing spring 5.
14 upper end of linear motor rotor is connected with the counterweight 15 that one is insulating materials, is connected to linear motor rotor 14
Together, linear motor rotor is followed to do linear reciprocating motion together, while linear motor rotor 14 applies spring 5 and impacts
Leaf spring 3 is applied and is impacted, mechanical shock is passed to underground by bottom plate in the form of seismic wave.
Guiding mechanism is made of bottom guide holder 4, guiding trestle 13, top guide seat 12, and guiding trestle 13 is led by bottom
Jointly fixed to seat 4 and top guide seat 12, bottom guide holder 4 and top guide seat pass through screw 11 and are connected to pedestal
1 and shell 2 on.
Design has heat release hole 10 on shell 2, is annularly uniformly distributed in 2 top and bottom of shell, coil 8 is passed through electric current
When, the seismic signal excitation apparatus inside of linear motor driving can generate a part of heat, influence its normal work, pass through
The problem of inner air and outer air circulation may be implemented in heat release hole 10, plays the role of cooling to its inside, alleviates local pyrexia.
Claims (5)
1. a kind of seismic signal excitation apparatus of linear motor driving, comprising: pedestal (1), shell (2), leaf spring (3), bottom are led
To seat (4), spring (5), dead ring (6), linear motor stator electric (7), coil (8), coil brace (9), heat release hole (10), screw
(11), top guide seat (12), guiding trestle (13), linear motor rotor (14), counterweight (15)；It is characterized by: straight line is dynamic
Son and coil brace be fixed on the guide holder of bottom, linear motor rotor and with reconnection, when linear motor doing periodically
Counterweight can be driven to move together when linear reciprocating motion, during this period, linear motor rotor and counterweight are respectively to spring and plate
Spring applies periodic load simultaneously, to form unique seismic signal and spread out of via bottom plate.
2. a kind of seismic signal excitation apparatus of linear motor driving as described in claim 1, it is characterised in that: leaf spring is fixed
In plate upper surface, arc surface is directly contacted with counterweight, when electric mover does periodic reverse linear motion, can be applicable in
In high frequency response, responding ability is stronger, and more durable than general spring.
3. a kind of seismic signal excitation apparatus of linear motor driving as described in claim 1, it is characterised in that: bottom plate and outer
Shell does not contact, and the vibration under bottom plate working condition is not transferred on shell, avoids shell vibration and works the excitation apparatus
The influence of performance.
4. a kind of seismic signal excitation apparatus of linear motor driving as described in claim 1, it is characterised in that: for magnetic material
It is provided with dead ring between the linear motor rotor and spring of material, prevents the magnetic material of electric mover from magnetizing spring.
5. a kind of seismic signal excitation apparatus of linear motor driving as described in claim 1, it is characterised in that: guiding trestle
Positioned at bottom plate circle position, lower end is connected with bottom plate, and top guide seat axial restraint is protruded into upper end；It is each passed through spring, insulation
Ring, electric mover, counterweight center guarantee the concentricity during electric mover and counterweight linear reciprocating motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920608409.XU CN209656902U (en) | 2019-04-29 | 2019-04-29 | A kind of seismic signal excitation apparatus of linear motor driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920608409.XU CN209656902U (en) | 2019-04-29 | 2019-04-29 | A kind of seismic signal excitation apparatus of linear motor driving |
Publications (1)
| Publication Number | Publication Date |
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| CN209656902U true CN209656902U (en) | 2019-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920608409.XU Active CN209656902U (en) | 2019-04-29 | 2019-04-29 | A kind of seismic signal excitation apparatus of linear motor driving |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109917449A (en) * | 2019-04-29 | 2019-06-21 | 西南石油大学 | A kind of seismic signal excitation apparatus of linear motor driving |
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2019
- 2019-04-29 CN CN201920608409.XU patent/CN209656902U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109917449A (en) * | 2019-04-29 | 2019-06-21 | 西南石油大学 | A kind of seismic signal excitation apparatus of linear motor driving |
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