CN112526594A - Portable hydraulic servo controllable seismic source device - Google Patents
Portable hydraulic servo controllable seismic source device Download PDFInfo
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- CN112526594A CN112526594A CN201911385309.6A CN201911385309A CN112526594A CN 112526594 A CN112526594 A CN 112526594A CN 201911385309 A CN201911385309 A CN 201911385309A CN 112526594 A CN112526594 A CN 112526594A
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- 230000035939 shock Effects 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 230000005284 excitation Effects 0.000 claims abstract description 20
- 239000002689 soil Substances 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 description 20
- 230000033001 locomotion Effects 0.000 description 9
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/02—Generating seismic energy
- G01V1/143—Generating seismic energy using mechanical driving means, e.g. motor driven shaft
- G01V1/155—Generating seismic energy using mechanical driving means, e.g. motor driven shaft using reciprocating masses
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/02—Generating seismic energy
- G01V1/04—Details
- G01V1/09—Transporting arrangements, e.g. on vehicles
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- Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to the technical field of seismic source generators, in particular to a portable hydraulic servo controllable seismic source device. The portable hydraulic servo controllable seismic source device comprises a frame and a seismic source servo mechanism located on the frame, wherein the seismic source servo mechanism comprises a seismic source counter-force oil cylinder fixedly connected with the frame, a piston rod of the seismic source counter-force oil cylinder faces downwards, a pressing plate is fixedly connected to the lower end of the seismic source counter-force oil cylinder, a plurality of air springs are fixedly connected to the lower end of the pressing plate, and the lower ends of the air springs are fixedly connected with the same seismic exciting plate. The shock excitation device has the advantages that the shock excitation device extends downwards through the shock source counter-force oil cylinder, when the shock excitation plate abuts against the ground, the piston rod continues to extend downwards, the whole vehicle frame is lifted up to be separated from the ground, then the shock source is generated through the shock source heavy hammer, all weight can be effectively utilized, the device can generate larger shock source strength under the condition of equal weight level, and meanwhile the influence of a vehicle body on the shock excitation effect during shock excitation of the shock source is avoided.
Description
Technical Field
The invention relates to the technical field of seismic source generators, in particular to a portable hydraulic servo controllable seismic source device.
Background
The controllable seismic source has super-strong anti-interference capability, and because the large controllable seismic source and other vehicle-mounted seismic sources cannot enter complex earth surface areas such as island jungles and the like, the remote control self-walking type controllable seismic source developed according to actual application needs is small in overall dimension of a vehicle body, small in turning radius, flexible in maneuvering and suitable for island and jungles operation, and meanwhile, the remote control walking and construction are adopted, so that the safety of personnel during construction operation is ensured.
The existing mobile seismic source is provided with four turnable supporting legs in total at the front end and the rear end of a frame. When a seismic source needs to be generated, the four legs are rotated to be opened to be abutted with the ground, so that the whole vehicle frame is lifted. The four supporting legs form a larger bottom surface after being opened, so that the frame does not slide downwards along the slope surface when a seismic source is generated when the frame is used on the slope.
The above prior art solutions have the following drawbacks: because the vehicle body is lifted by the supporting legs, the gravity of the part of the vehicle body is distributed on the four supporting legs, so that the maximum seismic source intensity which can be generated by the part of the vehicle body is limited. Meanwhile, the seismic source vibrates, and the four support legs generate reaction force to generate larger interference on vibration effect.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a portable hydraulic servo controllable seismic source device which has the advantage that the device can generate larger seismic source intensity under the condition of equal weight.
The above object of the present invention is achieved by the following technical solutions: the utility model provides a light hydraulic pressure servo controlled seismic source device, includes the frame and is located the seismic source servo mechanism on the frame, seismic source servo mechanism includes the seismic source counter-force hydro-cylinder with frame fixed connection, the piston rod of seismic source counter-force hydro-cylinder is down and the lower extreme fixedly connected with clamp plate of seismic source counter-force hydro-cylinder, the lower extreme fixedly connected with a plurality of air springs of clamp plate, the lower extreme and the same piece of sharp vibrating plate fixed connection of a plurality of air springs, the top fixedly connected with seismic source weight in sharp vibrating plate middle part, when seismic source servo mechanism work produced the seismic source, seismic source counter-force hydro-cylinder stretches out downwards and lifts up the frame and.
By adopting the technical scheme, when the seismic source servo mechanism generates a seismic source, the seismic source counter-force oil cylinder extends downwards firstly, and when the shock excitation plate abuts against the ground, the piston rod continues to extend downwards, so that the whole vehicle frame is lifted up to be separated from the ground, and then the seismic source is generated through the short-distance reciprocating motion of the seismic source heavy hammer. Because all the weights of the frame and the seismic source servo mechanism are pressed on the shock excitation plate, all the weights of the device can be effectively utilized, the device can generate larger seismic source strength under the condition of equal weight level, and the influence of the vehicle body on the shock excitation effect during the shock excitation of the seismic source is avoided. And meanwhile, the frequency rising, frequency reduction and user-defined frequency sweep signal shock excitation are realized by controlling a seismic source heavy hammer, and the seismic source is not a pulse type seismic source.
The present invention in a preferred example may be further configured to: and an avoiding hole for avoiding the seismic source heavy hammer is formed in the middle of the pressing plate.
By adopting the technical scheme, as the seismic source heavy hammer needs to be provided with larger weight, in order to ensure that the seismic source heavy hammer is not limited by space, the pressure plate is provided with the avoidance hole to avoid the seismic source heavy hammer.
The present invention in a preferred example may be further configured to: the front end of the frame is provided with a dozer blade.
By adopting the technical scheme, the front end of the frame is provided with the dozer blade to shovel the soil, so that a flat stress surface is formed at the measuring position, and a seismic source is generated in the subsequent work.
The present invention in a preferred example may be further configured to: the soil pushing device is characterized in that the soil pushing blade is rotatably connected with the frame, a soil pushing oil cylinder is connected between the frame and the soil pushing blade, and the soil pushing oil cylinder is rotatably connected with the frame and the soil pushing blade.
By adopting the technical scheme, the angle of the dozer blade is controlled through the stretching of the dozer oil cylinder, when the dozer blade rotates to the position facing the lowest point, the bottom edge of the dozer blade is parallel and level with the lower surface of the crawler wheel, and the dozer blade can conveniently adjust and control the shoveling height.
The present invention in a preferred example may be further configured to: the dozer blade is connected with the frame through the dozer cylinder, the dozer cylinder is fixedly connected with the frame and the dozer blade, and the dozer blade stretches along the front-back direction.
By adopting the technical scheme, the soil shoveling action is completed by pushing the soil pushing shovel forwards through the soil pushing oil cylinder. Meanwhile, the soil pushing cylinder pushes the soil pushing shovel forwards to assist in adjusting the gravity center of the frame.
The present invention in a preferred example may be further configured to: the frame includes chassis and support body, be equipped with the front and back adjusting part on the chassis, the front and back adjusting part includes along the front and back direction around the regulation hydro-cylinder, the one end and the chassis fixed connection of front and back regulation hydro-cylinder, the other end and support body fixed connection.
By adopting the technical scheme, the vehicle frame is completely lifted by the seismic source servo mechanism to generate the seismic source, and when the seismic source is generated on the slope, the vehicle frame moves to the lower side of the slope along with the vibration. The front and back movement of the frame body is controlled by the telescopic of the front and back adjusting oil cylinder, so that the integral gravity center of the frame is changed along with the movement of the frame body. The gravity center of the frame is enabled to reach a state of mutual offset with the moment formed by the seismic source servo mechanism relative to the center of the shock excitation plate, and the device is prevented from moving in the process of generating the seismic source.
The present invention in a preferred example may be further configured to: the front and rear adjusting assembly is arranged on the frame and comprises a front and rear adjusting guide frame, a front and rear balancing weight moving along the front and rear direction is installed on the front and rear adjusting guide frame, and a front and rear driving power element for pushing the front and rear balancing weight to move along the front and rear direction is installed on the front and rear adjusting guide frame.
Through adopting above-mentioned technical scheme, through the front and back balancing weight of front and back drive power component drive along the fore-and-aft direction motion the regulation that realizes the frame focus.
The present invention in a preferred example may be further configured to: the left and right adjusting device is arranged on the frame and comprises a left and right adjusting guide frame, a left and right balancing weight moving along the left and right direction is arranged on the left and right adjusting guide frame, and a left and right driving power element for pushing the left and right balancing weight to move along the left and right direction is arranged on the left and right adjusting guide frame.
By adopting the technical scheme, the front and back directions of the frame are not necessarily exactly the same as the inclination direction of the slope. Therefore, adjusting the center of gravity of the vehicle frame only in the front-rear direction does not satisfy the requirements of all cases. Therefore, the left and right driving power elements drive the left and right balancing weights to realize the movement of the gravity center of the frame in the left and right directions so as to adapt to more use conditions.
The present invention in a preferred example may be further configured to: and the shock excitation plate is provided with an inclination angle sensor.
By adopting the technical scheme, the inclination angle sensor is arranged on the vibration exciting plate, and as the vibration exciting plate is directly attached to the ground and the calculation moment is mutually offset, the calculation is carried out by taking the center of the vibration exciting plate as a base point, so that the inclination angle sensor is arranged on the vibration exciting plate to measure the included angle formed by the vibration exciting plate and the horizontal plane, and a more accurate result can be obtained.
In summary, the invention includes at least one of the following beneficial technical effects:
1. all the weights of the frame and the seismic source servo mechanism are pressed on the shock excitation plate, so that all the weights of the device can be effectively utilized, and the device can generate larger seismic source strength under the condition of equal weight level;
2. because the vehicle frame is completely lifted by the seismic source servo mechanism to generate the seismic source, when the seismic source is generated on a slope, the vehicle frame moves to the lower side of the slope along with vibration, and the front and back movement of the frame body is controlled by the extension and retraction of the front and back adjusting oil cylinders, so that the overall gravity center of the vehicle frame changes along with the movement of the frame body, the gravity center of the vehicle frame reaches a state of mutually offsetting the moment formed by the seismic source servo mechanism relative to the center of the shock excitation plate, and the device is prevented from moving in the process of generating the seismic source.
Drawings
FIG. 1 is a schematic structural diagram of the first embodiment;
FIG. 2 is a schematic structural view of a hidden frame according to an embodiment;
FIG. 3 is a schematic diagram of the construction of a seismic source servo in an embodiment;
FIG. 4 is a schematic structural view of the second embodiment;
FIG. 5 is a schematic structural view of the third embodiment;
FIG. 6 is a schematic structural diagram of the fourth embodiment.
Reference numerals: 1. a frame; 2. a seismic source servo mechanism; 3. a chassis; 4. a frame body; 5. mounting holes; 6. a crawler wheel; 7. a dozer blade; 8. a soil-shifting oil cylinder; 9. a front and rear adjustment assembly; 10. a front and rear adjusting oil cylinder; 11. a seismic source reaction oil cylinder; 12. pressing a plate; 13. an air spring; 14. a tilt sensor; 15. avoiding holes; 16. a seismic source weight; 17. a left-right adjustment assembly; 18. a left and right adjusting guide frame; 19. a left and a right balancing weight; 20. a left and right driving power element; 21. the guide frame is adjusted forwards and backwards; 22. front and rear balancing weights; 23. a front and rear driving power element; 24. a shock excitation plate; 25. and a limiting member.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1 and 2, a portable hydraulic servo controlled seismic source device comprises a vehicle frame 1 and a seismic source servo mechanism 2 positioned on the vehicle frame 1. The front, rear, left, and right described in the embodiment are the same as the front, rear, left, and right directions of the vehicle frame 1.
As shown in fig. 1 and 2, the frame 1 includes a chassis 3 and a frame body 4, a mounting hole 5 for mounting the seismic source servo mechanism 2 is formed in the middle of the chassis 3, and crawler wheels 6 are mounted on both the left and right sides of the chassis 3. The front end of the chassis 3 is rotatably connected with a dozer blade 7, a dozer cylinder 8 is connected between the middle of the front end face of the chassis 3 and the dozer blade 7, two ends of the dozer cylinder 8 are rotatably connected with the chassis 3 and the dozer blade 7 respectively, and the rotary connection point of the dozer cylinder 8 and the chassis 3 is lower than the rotary connection point of the dozer blade 7 and the chassis 3. The angle of the blade 7 is controlled by the extension and contraction of the dozer cylinder 8, and when the blade 7 rotates to a position facing the lowest point, the bottom edge of the blade 7 is flush with the lower surface of the crawler wheel 6.
As shown in fig. 2 and 3, a front-rear adjusting assembly 9 for adjusting the center of gravity of the frame 1 along the front-rear direction is mounted on the chassis 3, the front-rear adjusting assembly 9 includes a front-rear adjusting cylinder 10 along the front-rear direction, one end of the front-rear adjusting cylinder 10 is fixedly connected with the chassis 3, the other end of the front-rear adjusting cylinder 10 is fixedly connected with the frame body 4, and the front-rear movement of the frame body 4 is controlled by the extension and retraction of the front-rear adjusting cylinder 10, so that the center of gravity of the frame 1.
As shown in fig. 2 and 3, the seismic source servo mechanism 2 is installed in the installation hole 5, the seismic source servo mechanism 2 includes at least two seismic source reaction cylinders 11 fixedly connected with the chassis 3, piston rods of the seismic source reaction cylinders 11 face downward, and lower ends of the seismic source reaction cylinders 11 are both fixedly connected with the pressing plate 12. The lower part of the pressure plate 12 is connected with a vibration exciting plate 24 through four air springs 13, and the vibration exciting plate 24 is provided with an inclination angle sensor 14. An avoidance hole 15 is formed in the middle of the pressing plate 12, a seismic source heavy hammer 16 is fixedly connected above the middle of the shock excitation plate 24, and the seismic source heavy hammer 16 penetrates through the pressing plate 12 through the avoidance hole 15. The seismic source heavy hammer 16 generates a seismic source by controlling the lifting of the hammer body. Before a seismic source is generated, a piston rod of the seismic source counter-force oil cylinder 11 extends out, so that the shock excitation plate 24 is abutted against the ground; the piston rod continues to extend downwardly so that the frame 1 is raised entirely and the track wheels 6 are disengaged from the ground. The upper end of the vibration exciting plate 24 is fixed with a plurality of limiting parts 25 which pass through the pressing plate 12, and the limiting parts 25 limit the maximum distance between the pressing plate 12 and the vibration exciting plate 24. When the piston rod of the seismic source reaction oil cylinder 11 is contracted upwards, the spacing between the pressing plate 12 and the shock excitation plate 24 reaches the maximum value, and the limiting part 25 pulls the shock excitation plate 24 to move upwards together.
At this time, the angle measured by the tilt sensor 14 is a, the weight of the seismic source servo 2 is G1, the weight of the vehicle frame 1 is G2, the height of the center of gravity of the seismic source servo 2 from the ground is h1, and the height of the center of gravity of the vehicle frame 1 from the ground is h 2.
The moment generated by the gravity of the seismic source servo 2 relative to the center of the shock plate 24 at this time is M1= G1 h1 sin (a).
When the center of gravity of the vehicle frame 1 is to be moved to a position right above the center of the shock plate 24, the moving distance of the center of gravity of the vehicle frame 1 upward along the slope is L1= h2 tan (a), and the moment generated by the gravity of the vehicle frame 1 relative to the center of the shock plate 24 is 0.
In order to keep the seismic source device in a stable state in the process of generating a seismic source, the moment generated by the center of gravity of the vehicle frame 1 relative to the center of the shock plate 24 and the moment generated by the seismic source servo mechanism 2 relative to the center of the shock plate 24 need to be adjusted to mutually counteract. The center of gravity of frame 1 therefore needs to continue to adjust upward in a sloping manner until M2= G2L 2 cos (a) = M1= G1 h1 sin (a).
Obtaining by solution: l2= (G1/G2) × h1 × (a).
The total displacement distance of the center of gravity of the frame 1 moving upward along the slope is L = L1+ L2= h2 tan (a) + (G1/G2) h1 tan (a).
After the gravity center position of the frame 1 is adjusted, the seismic source heavy hammer 16 does short-range reciprocating motion to generate a seismic source.
Example two:
as shown in fig. 4, a portable hydraulic servo controlled seismic source device is different from the first embodiment in that the device further comprises a left-right adjusting assembly 17, the left-right adjusting assembly 17 comprises a left-right adjusting guide frame 18, and a left-right balancing weight 19 which moves in the left-right direction is mounted on the left-right adjusting guide frame 18. The left-right adjusting guide frame 18 is provided with a left-right driving power element 20 for pushing the left-right counterweight block 19 to move in the left-right direction. The left and right driving power elements 20 may be oil cylinders, or a motor driving a screw rod in threaded connection with the left and right counter weights 19.
Example three:
as shown in fig. 5, a portable hydraulic servo controlled seismic source device is different from the first embodiment in that the front-rear adjusting assembly 9 includes a front-rear adjusting guide frame 21, and a front-rear balancing weight 22 moving in the front-rear direction is mounted on the front-rear adjusting guide frame 21. The front-rear adjusting guide frame 21 is provided with a front-rear driving power element 23 for pushing the front-rear balancing weight 22 to move in the front-rear direction. The front and rear driving power element 23 may be an oil cylinder, or a motor driving a screw rod in threaded connection with the front and rear counterweights 22.
Example four:
as shown in fig. 6, a portable hydraulic servo controlled seismic source device differs from the first embodiment in that a dozer blade 7 is connected to a chassis 3 only through a dozer cylinder 8, the dozer cylinder 8 is fixedly connected to both the chassis 3 and the dozer blade 7, and the dozer cylinder 8 pushes the dozer blade 7 to move in the front-rear direction.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. The utility model provides a light hydraulic pressure servo controlled seismic source device, includes frame (1) and is located seismic source servo mechanism (2) on frame (1), characterized by: the earthquake focus servo mechanism (2) comprises an earthquake focus reaction oil cylinder (11) fixedly connected with the frame (1), a piston rod of the earthquake focus reaction oil cylinder (11) is downward, a pressing plate (12) is fixedly connected to the lower end of the earthquake focus reaction oil cylinder (11), a plurality of air springs (13) are fixedly connected to the lower end of the pressing plate (12), the lower ends of the air springs (13) are fixedly connected with the same earthquake exciting plate (24), an earthquake focus heavy hammer (16) is fixedly connected to the upper portion of the middle portion of the earthquake exciting plate (24), and when the earthquake focus servo mechanism (2) works to generate an earthquake focus, the earthquake focus reaction oil cylinder (11) extends downward to lift the frame (1) to be separated from the ground.
2. The portable hydraulic servo controlled seismic source device according to claim 1, wherein: and an avoidance hole (15) for avoiding the seismic source heavy hammer (16) is formed in the middle of the pressing plate (12).
3. The portable hydraulic servo controlled seismic source device according to claim 1, wherein: the front end of the frame (1) is provided with a dozer blade (7).
4. A portable hydraulic servo controlled seismic source apparatus according to claim 3, further comprising: the soil pushing device is characterized in that the soil pushing blade (7) is rotatably connected with the frame (1), a soil pushing oil cylinder (8) is connected between the frame (1) and the soil pushing blade (7), and the soil pushing oil cylinder (8) is rotatably connected with the frame (1) and the soil pushing blade (7).
5. A portable hydraulic servo controlled seismic source apparatus according to claim 3, further comprising: the bulldozer comprises a frame (1), a bulldozer blade (7), a bulldozer oil cylinder (8), the frame (1) and the bulldozer blade (7) which are fixedly connected, and the bulldozer blade (7) stretches along the front-back direction.
6. The portable hydraulic servo controlled seismic source device according to claim 1, wherein: frame (1) includes chassis (3) and support body (4), be equipped with front and back adjusting part (9) on chassis (3), front and back adjusting part (9) are including front and back regulation hydro-cylinder (10) along the fore-and-aft direction, the one end and chassis (3) fixed connection, the other end and support body (4) fixed connection of front and back regulation hydro-cylinder (10).
7. The portable hydraulic servo controlled seismic source device according to claim 1, wherein: the front and back adjusting device is characterized in that a front and back adjusting assembly (9) is arranged on the frame (1), the front and back adjusting assembly (9) comprises a front and back adjusting guide frame (21), a front and back balancing weight (22) moving in the front and back direction is installed on the front and back adjusting guide frame (21), and a front and back driving power element (23) for pushing the front and back balancing weight (22) to move in the front and back direction is installed on the front and back adjusting guide frame (21).
8. A portable hydraulic servo controlled seismic source apparatus according to claim 6 or 7, wherein: the left and right adjusting component (17) is arranged on the frame (1), the left and right adjusting component (17) comprises a left and right adjusting guide frame (18), a left and right balancing weight (19) moving along the left and right direction is installed on the left and right adjusting guide frame (18), and a left and right driving power element (20) for pushing the left and right balancing weight (19) to move along the left and right direction is installed on the left and right adjusting guide frame (18).
9. The portable hydraulic servo controlled seismic source device according to claim 8, wherein: and the shock excitation plate (24) is provided with an inclination angle sensor (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911385309.6A CN112526594A (en) | 2019-12-28 | 2019-12-28 | Portable hydraulic servo controllable seismic source device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911385309.6A CN112526594A (en) | 2019-12-28 | 2019-12-28 | Portable hydraulic servo controllable seismic source device |
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| CN112526594A true CN112526594A (en) | 2021-03-19 |
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| CN201911385309.6A Pending CN112526594A (en) | 2019-12-28 | 2019-12-28 | Portable hydraulic servo controllable seismic source device |
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