CN103513271A - Seismic source with adjustable impact force - Google Patents
Seismic source with adjustable impact force Download PDFInfo
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- CN103513271A CN103513271A CN201210207392.XA CN201210207392A CN103513271A CN 103513271 A CN103513271 A CN 103513271A CN 201210207392 A CN201210207392 A CN 201210207392A CN 103513271 A CN103513271 A CN 103513271A
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Abstract
The invention relates to a seismic source in the field of geophysical exploration and especially relates to a seismic source with adjustable impact force. The seismic source comprises a hammer, a hammer supporting mechanism, a hammer impact mechanism, a hammer lifting mechanism and a control device. The supporting mechanism comprises a bracket and a hammer column, wherein the upper end of the hammer column is connected with a piston of an impact cylinder and the lower end of the hammer column is connected with the hammer. The hammer impact mechanism is the impact cylinder which is located above the bracket and connected with the hammer column. According to the hammer lifting mechanism, the upper end of the hammer column is provided with a convex edge, lifting cylinders are symmetrically arranged below the two sides of the convex edge, and pistons of the lifting cylinders are in butt joint with the convex edge. The seismic source with adjustable impact force has the following beneficial effects: the impact cylinder can adjust the magnitude of impact force of the hammer; a pneumatic mechanism replaces a hydraulic mechanism, oil leakage of hydraulic components is avoided, and the seismic source is suitable for remote field operations; the stability is increased as a counterweight block is arranged on the bracket; and the hammer has a spherical arc bottom so as to adapt to the uneven ground.
Description
Technical field
The present invention relates to the earthquake source in geophysical survey field, the adjustable focus of especially a kind of impulsive force.
Background technology
In geophysical survey field, seismic exploration technique has become the requisite important means of oil field, coal exploration and exploitation.Along with the development of China's Petroleum Industry, it is very complicated that geophysical survey Yi You has transferred to east the western surface conditions of western ，Er China, mostly is the landforms such as, little desert, Gobi desert, riverbed, part gully.The seismic data signal to noise ratio (S/N ratio) that adopts traditional seismic test mode to gather is low, operating efficiency is low, seismic data acquisition cost is high.Adopt the mode of manpower hammering ground and lifting weight because of weight size restrictions, the impact energy often obtaining is less.Therefore, need the controlled focus of jarring force to improve seismic data quality, enhance productivity and reduce production costs.
Number of patent application is 200920104794.0, publication number is CN201518059 U, invention and created name is the disclosed P-shooter of Chinese utility model patent of " a kind of impulse type drop hammer seismic focus ", adopt hydraulic cylinder lifting weight, the effect collision that utilizes the gravity of weight and nitrogen cylinder the to continue thrust plate that contacts to earth, impact kinetic energy by the plate that contacts to earth to earth-layer propagation.The weak point of this scheme is: balancing weight is not set on car body, and during weight drop, the lasting thrust of nitrogen cylinder can apply reacting force to vehicle frame, causes vehicle body spring unstability; This device comprises hydraulic power unit and a plurality of hydraulic cylinder, hydraulic means easy oil leakage, and impact is clean, the field supply difficulty of nitrogen cylinder.
Summary of the invention
The present invention has overcome the deficiencies in the prior art, the invention provides the adjustable focus of a kind of impulsive force, and it can either adjust focus impulsive force, is applicable to again long-range field work.
In order to solve above technical matters, the present invention realizes by mode by the following technical solutions:
Impulsive force is adjustable focus, comprise weight and supporting mechanism thereof, tension weight churning mechanism and weight lifting mechanism and control device, the pneumatic control part that wherein control device is connected with tension weight churning mechanism, weight lifting mechanism by pipeline by pneumatic pump, gas cylinder, reduction valve and the circuit control section of control reduction valve pressure and action form, it is characterized in that: described supporting mechanism comprises support, hammer post, wherein Chui Zhu upper end is connected with the piston of blow cylinder, and lower end connects weight; Tension weight churning mechanism is positioned at the blow cylinder that support top is connected with hammer post; Weight lifting mechanism is that Chui Zhu upper end is provided with flange, in flange down either side, is symmetrical arranged lifting cylinder, lifting cylinder piston dock with flange.
Described impulsive force is adjustable, and focus also comprises that Pneumatic locking mechanism ，Gai mechanism is the piston connection clamping block by lock cylinder, and realizes locking with the groove fit that hammer post is provided with.
Described weight weight bottom shape is spherical arc shape; Described supporting mechanism is provided with balancing weight; Described hammer post is length adjustable structure.
The length adjustable structure of described hammer post is: described hammer post is two sections of structures that are threaded, and wherein one section is provided with threaded hole, and another section is provided with the external thread being mated.
Described blow cylinder, lock cylinder and gas cylinder are that one or more, described lifting cylinders is differential cylinder.
Compared with prior art, the invention has the beneficial effects as follows: adjustable reduction valve is installed before blow cylinder, realizes tension weight churning power size adjustable; Pneumatic mechanism replaces hydraulic mechanism, has avoided the oil leakage phenomenon of Hydraulic Elements; Pneumatic pump is convenient is gas cylinder supplementary pressure at any time, is applicable to long-range field work; On support (or car body), be provided with balancing weight, car body unstability while avoiding hammering; Under weight, without backing plate, the hammer end is sphere arc, adapts to uneven ground.
Accompanying drawing explanation
Fig. 1 is the structural representation of the adjustable focus of impulsive force of the present invention.
Fig. 2 is that Fig. 1 is along the cut-open view of A-A face.
Fig. 3 is the stereographic map that the present invention is applied to a kind of embodiment on car body.
Wherein: 1, blow cylinder; 2, hammer post; 3, lifting cylinder; 4, clamping block; 5, lock cylinder; 6, balancing weight; 7, groove; 8, weight; 9-12 reduction valve; 13, gas cylinder; 14, pneumatic pump; 15, electrical control gear; 16, flange; 17, threaded hole; 18, external thread; 19, battery pack.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
As depicted in figs. 1 and 2, the blow cylinder 1 of the adjustable focus of impulsive force of the present invention is fixed on support upper end, and the piston rod of blow cylinder 1 withstands hammer post 2 upper surfaces downwards, and hammer post 2 lower surfaces are fixedly connected with weight 8, and weight 8 bottom surfaces are spherical arc shape.Hammer post 2 is provided with the groove 7 coordinating with clamping block 4, and clamping block 4 is fixedly connected with the piston rod of locking cylinder 5, and two clamping block 4 symmetries are laid, and the piston rod of lifting cylinder 3 protrudes upward and withstands in hammer post 2 upper end flange 16.Hammer post 2 is divided into two sections, and epimere bottom surface is provided with threaded hole 17, and hypomere is with the external thread 18 coordinating with threaded hole 17.Pneumatic pump 14 is connected with gas cylinder 13 by reduction valve 10, and blow cylinder 1, lifting cylinder 3 and lock cylinder 5 are connected with gas cylinder 13 with high pressure gas pipeline by reduction valve 9,12,11 respectively.Pneumatic pump 14 is diesel-driven air compressor, and gas cylinder 13 stores pressure-air, and lifting cylinder 3 is differential cylinder.Reduction valve 9,10,11,12 is electromagnetic relief pressure valve and is connected with control device 15 by wire.Blow cylinder 1, lifting cylinder 3 and lock cylinder 5 are connected with control device 15 by wire.The below of support is provided with balancing weight 6.
As shown in Figure 3, the present invention is applied to an embodiment on car body, and focus integral installation that impulsive force of the present invention is adjustable is on car body, and support and balancing weight 6 are fixed on chassis of vehicle body, and chassis of vehicle body is reserved with the perforate that hammer post 2 passes through.Blow cylinder 1 is in parallel two, to increase impulsive force.Hammer post 2 is arranged side by side two, to strengthen impact strength, and two pairs of clamping blocks 4 and two pairs of lock cylinder 5 is set.Battery pack 19 is control device power supply, and motor car engine is battery pack 19 chargings.
In conjunction with above-described embodiment, working mechanism of the present invention is: supporting mechanism for installing, fixedly weight and impact and lifting pneumatic drive system, beater mechanism provides power for weight hammering ground, lifting mechanism is for promoting weight reset after hammering.During use, the adjustable focus of impulsive force is fixed on (such as automobile or trailer chassis) on car body, carries out field Seismic Operation.During blow cylinder work, support is had to reacting force, for preventing car body spring unstability, discharge the size of impulsive force according to blow cylinder, therefore balancing weight is set on supporting mechanism, balancing weight also can be arranged on car body.
Weight has identical initial position when preventing that the spring of the weight in transportation from can guarantee to impact again at every turn, impulsive force is adjustable, and focus also comprises Pneumatic locking mechanism, the piston of lock cylinder connects clamping block, and realizes locking with the groove fit that hammer post is provided with.When focus is not worked, clamping block stretches into hammer post groove and limits Chui Zhu position under the piston rod of lock cylinder promotes, and realizes the locking to hammer post, and clamping block arranges in pairs and in hammer post symmetria bilateralis, and clamping block is held hammer post tightly simultaneously, further limits hammer post.
During focus work, maneuver control device, first the piston rod of lifting cylinder is regained, and then lock cylinder piston rod is regained rapidly, when clamping block discharges hammer post, blow cylinder piston rod promotes hammer post downwards rapidly, and under blow cylinder impulse force and weight Action of Gravity Field, hammering ground produces seismic event.It is static to weight that in hammering process, blow cylinder keeps air pressure inside, to guarantee that impulsive force is fully discharged into stratum neutralization and prevents weight bounce-back.Hammering is complete, and the piston rod of lifting cylinder protrudes upward to withstand in hammer post upper end flange will hammer post and weight jack-up, when hammer post rises to clamping block and hammers position corresponding to post groove into shape, and lock cylinder work, clamping block re-locks hammer post.
Hammer post is length adjustable structure, and then adjusts the elemental height of weight, to adapt to the ground that different soft and hard degree is different, such as hammer post can design, is divided into two sections, and adjusts hammer post overall length by changing length of thread engagement.
Reduction valve is preferably electromagnetic relief pressure valve and with air circuit breaker, control device is controlled reduction valve by wireless remote control or wire, realize the control of impact cylinder, lifting cylinder and lock cylinder action, and can adjust the supply gas pressure of blow cylinder, realize tension weight churning power size adjustable.Use control device more simpler than manual operation reduction valve to the centralized control of each reduction valve.
Source of the gas comprises gas cylinder and pneumatic pump, and pump is convenient is gas cylinder supplementary pressure at any time, and it can be air compressor electronic or oil-burning machine power.Adopt gasoline engine or diesel powered to facilitate supply, be applicable to remote field work.Adopting battery pack or vehicle power is control device power supply, and when pneumatic pump is electronic, adopting battery pack or vehicle power is pneumatic pump power supply.
Blow cylinder, lifting cylinder and lock cylinder action can be respectively one or more, and gas cylinder can be also one or more, according to the scope of required impulsive force and hammer number number determine.When gas cylinder is while being a plurality of, by adjusting each reduction valve between pneumatic pump and gas cylinder, set respectively the pressure of each gas cylinder.When lifting cylinder is differential cylinder, the hammer of lifting more stably post.
Because weight quality is large, weight is arranged on to hammer post below to lower the center of gravity.The direct hammering of weight ground, between ground and weight, without backing plate, weight bottom shape is spherical arc shape, applicable floor type is more, and can be applicable to sloping floor and out-of-flatness ground.
Claims (5)
1. the adjustable focus of impulsive force, comprise weight and supporting mechanism thereof, tension weight churning mechanism and weight lifting mechanism and control device, the pneumatic control part that wherein control device is connected with tension weight churning mechanism, weight lifting mechanism by pipeline by pneumatic pump, gas cylinder, reduction valve and the circuit control section of control reduction valve pressure and action form, it is characterized in that: described supporting mechanism comprises support, hammer post, wherein Chui Zhu upper end is connected with the piston of blow cylinder, and lower end connects weight; Tension weight churning mechanism is positioned at the blow cylinder that support top is connected with hammer post; Weight lifting mechanism is that Chui Zhu upper end is provided with flange, in flange down either side, is symmetrical arranged lifting cylinder, lifting cylinder piston dock with flange.
2. the adjustable focus of impulsive force according to claim 1, is characterized in that: described impulsive force is adjustable, and focus also comprises that Pneumatic locking mechanism ，Gai mechanism is the piston connection clamping block by lock cylinder, and realizes locking with the groove fit that hammer post is provided with.
3. the adjustable focus of impulsive force according to claim 1 and 2, is characterized in that: described weight weight bottom shape is spherical arc shape; Described supporting mechanism is provided with balancing weight; Described hammer post is length adjustable structure.
4. the adjustable focus of impulsive force according to claim 3, is characterized in that, the length adjustable structure of described hammer post is: described hammer post is two sections of structures that are threaded, and wherein one section is provided with threaded hole, and another section is provided with the external thread being mated.
5. the adjustable focus of impulsive force according to claim 2, is characterized in that: described blow cylinder, lock cylinder and gas cylinder are that one or more, described lifting cylinders is differential cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210207392.XA CN103513271A (en) | 2012-06-21 | 2012-06-21 | Seismic source with adjustable impact force |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210207392.XA CN103513271A (en) | 2012-06-21 | 2012-06-21 | Seismic source with adjustable impact force |
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| CN103513271A true CN103513271A (en) | 2014-01-15 |
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| CN201210207392.XA Pending CN103513271A (en) | 2012-06-21 | 2012-06-21 | Seismic source with adjustable impact force |
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Cited By (1)
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63241376A (en) * | 1987-03-28 | 1988-10-06 | Hazama Gumi Ltd | Acoustic wave generator |
| US5614670A (en) * | 1993-10-29 | 1997-03-25 | Board Of Regents, The University Of Texas System | Movable seismic pavement analyzer |
| US20070205042A1 (en) * | 2006-02-10 | 2007-09-06 | Doug Temple | Apparatus and method for generating a seismic signal |
| CN201242594Y (en) * | 2008-06-26 | 2009-05-20 | 福建省建筑设计研究院 | Continuous impact earthquake focus apparatus for pneumatic mechanical acoustic wave water area shallow layer seismic exploration |
| CN201518059U (en) * | 2009-09-09 | 2010-06-30 | 保定北奥石油物探特种车辆制造有限公司 | Impulse type drop hammer seismic focus |
| CN201993470U (en) * | 2011-01-20 | 2011-09-28 | 潍坊中宇机械有限公司 | Pulse vibrator vehicle |
-
2012
- 2012-06-21 CN CN201210207392.XA patent/CN103513271A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63241376A (en) * | 1987-03-28 | 1988-10-06 | Hazama Gumi Ltd | Acoustic wave generator |
| US5614670A (en) * | 1993-10-29 | 1997-03-25 | Board Of Regents, The University Of Texas System | Movable seismic pavement analyzer |
| US20070205042A1 (en) * | 2006-02-10 | 2007-09-06 | Doug Temple | Apparatus and method for generating a seismic signal |
| CN201242594Y (en) * | 2008-06-26 | 2009-05-20 | 福建省建筑设计研究院 | Continuous impact earthquake focus apparatus for pneumatic mechanical acoustic wave water area shallow layer seismic exploration |
| CN201518059U (en) * | 2009-09-09 | 2010-06-30 | 保定北奥石油物探特种车辆制造有限公司 | Impulse type drop hammer seismic focus |
| CN201993470U (en) * | 2011-01-20 | 2011-09-28 | 潍坊中宇机械有限公司 | Pulse vibrator vehicle |
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 |
| 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 |
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Application publication date: 20140115 |