CN1648689A - Hydraulic leather bag type controllable focus device - Google Patents
Hydraulic leather bag type controllable focus device Download PDFInfo
- Publication number
- CN1648689A CN1648689A CN 200510049027 CN200510049027A CN1648689A CN 1648689 A CN1648689 A CN 1648689A CN 200510049027 CN200510049027 CN 200510049027 CN 200510049027 A CN200510049027 A CN 200510049027A CN 1648689 A CN1648689 A CN 1648689A
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- China
- Prior art keywords
- hydraulic
- valve
- leather bag
- hydraulic cylinder
- oil
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 239000010985 leather Substances 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000969 carrier Substances 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 6
- 239000002828 fuel tank Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The hydraulic controllable leather bag epifocus apparatus includes oil pressure power part and water pressure drive part. The oil pressure power part includes oil tank, oil filter, hydraulic pump, servo valve, overflow valve, pressure gauge, energy accumulator and oil hydraulic cylinder with rod cavity and no-rod cavity connected together. In the water pressure drive part, the water hydraulic cylinder has no-rod cavity connected to epifocus executor via non-return valve and cut-off valve and connected to water tank via cut-off valve and non-return valve, and piston rod connected rigidly to the piston rod of oil hydraulic cylinder; and pressure sensor is also connected to the epifocus executor. The present invention has hydraulic system providing power, and epifocus executor set down to the submerged layer or bedrock in well for vibration. The well depth and the leather bag size may be determined based on requirement.
Description
Technical field
The present invention relates to a kind of hydraulic leather bag type controllable focus device.
Background technology
It is a new trend of international in recent years earthquake and infrastructure research that the deep earthquake is initiatively observed, it mainly is to utilize the man-made explosion system to produce seismic event, utilize the recording geometry of certain way to observe the seismic event (comprising compressional wave, shear wave and ground roll) that reflects up from deep under ground aperiodically, thereby understand the situation of change of underground infrastructure.The vibroseis that uses both at home and abroad all is to adopt hydraulic-driven, the reciprocating mode that impulses of mass at present.Such focus exciting power is big, and complex structure is very big to the influence of surrounding environment, and only is applicable to the high-frequency work state, and exciting force is very little when low frequency operation, and communication effect is very poor, costs an arm and a leg.
Summary of the invention
The object of the present invention is to provide a kind of hydraulic leather bag type controllable focus device, provide power, the focus actuator is transferred in the well shaken under the water table aquifer or in the basement rock by hydraulic system.
The technical scheme that the present invention solves its technical matters employing is: comprise oil pressure power section and hydraulic pressure running part; Wherein:
1) oil pressure power section: fuel tank is connected to hydraulic pump through oil filter, outlet is connected with hydraulic pump by oil filter in the import of servo-valve, the hydraulic pressure delivery side of pump connects surplus valve, tensimeter, accumulator respectively, and the outlet of servo-valve is connected respectively to the rod chamber and the rodless cavity of oil hydraulic cylinder
2) hydraulic pressure running part: the rodless cavity of hydraulic cylinder is connected to the actuator of focus respectively by retaining valve, stop valve, pressure transducer, stop valve are connected respectively to the import of actuator, another liquid road of the rodless cavity of hydraulic cylinder is connected water tank by stop valve with retaining valve, and the piston rod and the hydraulic cylinder piston rod of hydraulic cylinder are rigidly connected.
Described actuator comprises rigid carriers, flexible leather bag, flexible protective casing, wherein perforate on the rigid carriers, rigid carriers and adorn flexible leather bag wringing fit and install, flexible leather bag outside dress flexible protective casing.
The useful effect that the present invention has is:
1, owing to adopt flexible leather bag, good with the contingency of surrounding medium, medium adaptability is good; Be particularly suitable for the low frequency operating mode; Compact conformation is small and exquisite; Control, use, easy to maintenance; Pollution-free, noiselessness; Cheap.
The present invention provides power by hydraulic system, the focus actuator is transferred in the well shaken under the water table aquifer or in the basement rock, and the depth of well and leather bag size can determine as the case may be.
Description of drawings
Fig. 1 is a structural principle synoptic diagram of the present invention;
Fig. 2 is the actuator structure synoptic diagram;
Fig. 3 is an electro-hydraulic servo control pressurer system block diagram.
Embodiment
As shown in Figure 1, the present invention includes oil pressure power section A and hydraulic pressure transmission part B; Wherein:
1) oil pressure power section A: fuel tank 1 is connected to hydraulic pump 3 through oil filter 2,3 outlets are connected with hydraulic pump by oil filter 5 in the import of servo-valve 8, the outlet of hydraulic pump 3 connects surplus valve 4, tensimeter 6, accumulator 7 respectively, and the outlet of servo-valve 8 is connected respectively to the rod chamber and the rodless cavity of oil hydraulic cylinder 9
2) hydraulic pressure transmission part B: the rodless cavity of hydraulic cylinder 10 is connected to the actuator 18 of focus respectively by retaining valve 14, stop valve 15, pressure transducer 16, stop valve 17 are connected respectively to the import of actuator 18, another liquid road of the rodless cavity of hydraulic cylinder 10 is connected water tank 13 by stop valve 11 with retaining valve 12, and the piston rod and the hydraulic cylinder piston rod of hydraulic cylinder are rigidly connected.
As shown in Figure 2; described actuator 18 comprises rigid carriers 18.1, flexible leather bag 18.3, flexible protective casing 18.4; wherein perforate 18.2 on the rigid carriers, rigid carriers 18.1 and adorn flexible leather bag 18.3 wringing fits and install, flexible leather bag 18.3 outsides dress flexible protective casing 18.4.
Principle of work of the present invention is as follows:
Oil pressure power section A also controls on request for equipment provides driving power.It is by hydraulic pump 3 fuel feeding, surplus valve 4 pressure regulation, and servo-valve 8 is controlled, and is fed back by the pressure transducer 16 on hydraulic cylinder 10 right sides, realizes the closed-loop control of actuator 18 working chamber internal pressures.Frequency of operation and working pressure can be adjusted by servo-valve as required at any time.The hydraulic pressure transmission part B is utilized oil-water conversion cylinder that the power of oil pressure is delivered in the working chamber of actuator-bladder focus in real time accordingly by hole 18.2, and is made focus work pollution-free.
In order not destroy geologic structure, guarantee the continuous reliably working of actuator, working pressure should not be too big in the leather bag, generally at 1 ~ 5kgf/cm
2In the scope.If Bedrock Geology can suitably be increased to 10kgf/cm
2About.So the oil pressure controlled pressure in left side 1 is big, oil hydraulic cylinder 9 is thinner.And the hydraulic pressure on right side is lower, and hydraulic cylinder 10 is thicker, and correspondingly delivery rate is big, and the deflection of leather bag and workplace are strengthened, and is favourable to the work of reality.
The actuator structure of bladder focus as shown in Figure 2, wherein the flexible good deflection of leather bag and protective sleeve is big, " is close to " medium on every side all the time, makes the contingency two of its vibrations good.System carries out pressure control to working chamber in the leather bag, then leather bag to external world the total acting force of medium equal the product (transverse force of leather bag working chamber pressure and its workplace
Longitudinal force
), generally can be from several tons to tens tons.The size of leather bag can be designed to serial size, changes according to need of work.
The load of electrohydraulic servo-controlling system is in-oil cylinder pressure, controls the output pressure of water vat again by oil-water conversion cylinder, so its final controlled target is the working pressure in the actuator working chamber.The structured flowchart of electro-hydraulic servo Force control system as shown in Figure 3.
It is made up of servo controller, servo-valve, servo hydraulic cylinder and pressure transducer.Wherein control signal Ui is given by frequency-variable controller by testing requirements, the output pressure P of hydraulic cylinder
LDetected, be amplified in the servoamplifier and handle by pressure transducer, and compare with input signal, its difference is controlled servo-valve as error signal Δ Ui output after servo controller amplifies.Servo-valve will be controlled electrical signal conversion and become the hydrostatic control amount, promote the hydraulic cylinder motion, thereby constitute the closed loop servo control pressurer system.
At the work initial stage, can control water vat and move back and forth, earlier water is filled whole working chamber and pipeline, and discharge gas as far as possible, and then enter normal pressure control.
Claims (2)
1, a kind of hydraulic leather bag type controllable focus device is characterized in that: comprise oil pressure power section (A) and hydraulic pressure running part (B); Wherein:
1) oil pressure power section (A): fuel tank (1) is connected to hydraulic pump (3) through oil filter (2), outlet is connected with hydraulic pump (3) by oil filter (5) in the import of servo-valve (8), the outlet of hydraulic pump (3) connects surplus valve (4), tensimeter (6), accumulator (7) respectively, and the outlet of servo-valve (8) is connected respectively to the rod chamber and the rodless cavity of oil hydraulic cylinder (9);
2) hydraulic pressure running part (B): the rodless cavity of hydraulic cylinder (10) is connected to the actuator (18) of focus respectively by retaining valve (14), stop valve (15), pressure transducer (16), stop valve (17) are connected respectively to the import of actuator (18), another liquid road of the rodless cavity of hydraulic cylinder (10) is connected water tank (13) by stop valve (11) with retaining valve (12), and the piston rod and the hydraulic cylinder piston rod of hydraulic cylinder are rigidly connected.
2, according to right 1 described a kind of hydraulic leather bag type controllable focus device; it is characterized in that: described actuator (18) comprises rigid carriers (18.1), flexible leather bag (18.3), flexible protective casing (18.4); wherein perforate on the rigid carriers (18.2); rigid carriers (18.1) and adorn flexible leather bag (18.3) wringing fit and install, flexible leather bag (18.3) outside dress flexible protective casing (18.4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100490270A CN100409030C (en) | 2005-02-03 | 2005-02-03 | Hydraulic leather bag type controllable focus device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100490270A CN100409030C (en) | 2005-02-03 | 2005-02-03 | Hydraulic leather bag type controllable focus device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1648689A true CN1648689A (en) | 2005-08-03 |
| CN100409030C CN100409030C (en) | 2008-08-06 |
Family
ID=34876506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100490270A Expired - Fee Related CN100409030C (en) | 2005-02-03 | 2005-02-03 | Hydraulic leather bag type controllable focus device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100409030C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499832A (en) * | 2013-09-27 | 2014-01-08 | 中国石油集团东方地球物理勘探有限责任公司 | Cylinder pressure stable control device and use method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU714324A1 (en) * | 1977-04-06 | 1980-02-05 | Специальное Конструкторское Бюро Сейсмической Техники | Seismic signal source |
| SU714319A1 (en) * | 1977-10-26 | 1980-02-05 | Klipachev Stanislav | Hydraulic impact source of acoustical signals |
| US4334592A (en) * | 1980-12-04 | 1982-06-15 | Conoco Inc. | Sea water hydraulic fluid system for an underground vibrator |
| US4557348A (en) * | 1981-02-17 | 1985-12-10 | Exxon Production Research Co. | Tunable marine seismic source |
| RU1824608C (en) * | 1991-06-24 | 1993-06-30 | Тольяттинский политехнический институт | Seismic wave source |
-
2005
- 2005-02-03 CN CNB2005100490270A patent/CN100409030C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499832A (en) * | 2013-09-27 | 2014-01-08 | 中国石油集团东方地球物理勘探有限责任公司 | Cylinder pressure stable control device and use method |
| CN103499832B (en) * | 2013-09-27 | 2016-06-22 | 中国石油集团东方地球物理勘探有限责任公司 | A kind of cylinder pressure stable control device and using method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100409030C (en) | 2008-08-06 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080806 Termination date: 20100203 |