CN1010601B - Hydraulic pulse generator - Google Patents
Hydraulic pulse generatorInfo
- Publication number
- CN1010601B CN1010601B CN 87100648 CN87100648A CN1010601B CN 1010601 B CN1010601 B CN 1010601B CN 87100648 CN87100648 CN 87100648 CN 87100648 A CN87100648 A CN 87100648A CN 1010601 B CN1010601 B CN 1010601B
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- CN
- China
- Prior art keywords
- chamber
- piston
- housing
- sleeve
- housed
- Prior art date
- 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.)
- Expired
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- Fluid-Pressure Circuits (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
A kind of hydraulic pulse generator, comprise the air charged accumulator that communicates with vibration machine, this vibration machine has a housing, the back piston chamber of main piston to form the rear valve base chamber and to communicate with constant pressure source in housing wherein is set, also comprise septate second air charged accumulator, the piston of band piston rod is housed in its barrier film cavity of resorption, and formation rod end chamber, this chamber separates and leads to atmosphere with dividing plate and back piston chamber, the barrier film cavity of resorption communicates with bleed off pipe that choke valve is housed and outlet, sleeve is housed in rear valve housing of vibration generator shell versatilely, movable main piston wherein is housed again, form a chamber that communicates with outlet between sleeve and the housing.
Description
The present invention relates generally to mining engineering waterpower pulse technology, specifically relates to hydraulic pulse generator.
The present invention can be used for utilizing high-voltage pulse jet crushing rock in mining industry and the hydraulic engineering construction, also can be used for the heating power element that power engineering is cleaned the station boiler device.
Known hydraulic pulse generator Soviet Union's certificate of invention of the Ukraine underground hydraulic coal mining design and research institute that 1978 the 7th phases of " innovation and creation; production piece; trade mark " communique announce (see No. 594322) comprises the air charged accumulator that is installed on the feed pipe and links to each other with vibration machine with conduit, this vibration machine has a housing that hollow piston is housed, wherein form the open type water drain cavity, the enclosed water drain cavity, and low-pressure chamber and high-pressure chamber, the mechanism that also comprises a control hollow piston motion, this mechanism makes the form of airhood and is divided into two chambers with barrier film, one of them chamber is full of Compressed Gas, and another chamber links to each other high-pressure chamber by change resistance choke valve and communicates with atmosphere through switch with the open type water drain cavity.Low-pressure chamber links to each other with the draining nozzle; High-pressure chamber links to each other with the conduit of linking up air charged accumulator and vibration machine with the work nozzle.
The operating principle of this hydraulic pulse generator is based on the acceleration by the draining nozzle of liquid in the conduit between air charged accumulator and the vibration machine and the decelerating effect of the liquid stream that and then occurs before the work nozzle.
The restriction of known this device liquid body jet power value does not have sufficiently high breaking capacity.
Another kind of known hydraulic pulse generator Soviet Union's certificate of invention of full Soviet Union mechanochemistry boiler rinsing " boiler cleaning " factory that 1984 the 36th phases of " innovation and creation; production piece; trade mark " communique announce (see No. 1116161) comprises an air charged accumulator that communicates with the vibration machine water inlet pipe, this vibration machine has the housing of dress main piston in, the back piston chamber that forms the rear valve base chamber and be connected in the housing with the level pressure source, also comprise second air charged accumulator being with barrier film, the piston of band piston rod is housed in this accumulator barrier film cavity of resorption, this piston and main piston complement each other to form rod end chamber, rod end chamber separates with back piston with dividing plate and communicates with atmosphere, and the barrier film cavity of resorption communicates with outlet and nozzle with the overflow conduit that choke valve is housed.
The operating principle of this device is to utilize the accumulator energy accumulation of hydraulic pulse generator to certain numerical value, and the form with the high-pressure high-flow pulsing jet sprays by nozzle thereupon.
The liquid jet of this device and high-voltage pulse forward's hysteresis forms and links together, and the load that this hysteresis effect can not produce abrupt change is applied on the work plane, and can only produce load stably, thereby does not have sufficiently high breaking capacity.This can be interpreted as: under the fixing condition of valve seat and nozzle, valve seat and main piston structural parameters ratio, this situation may appear, promptly produce an additional forces that acts on the main piston, thereby the pressure that acts in the rear valve base chamber on the main piston cross section can not sufficiently compensate the frictional force that produces in this case, main piston will be lifted off a seat lentamente, thereby cause the high-voltage pulse forward to form hysteresis, just pressure slowly increases, thereby has reduced the efficient of waterpower cut.In addition, can not eliminate main piston and rest on a certain centre position and maintain static this situation, on this position, the liquid that flows out by valve seat and nozzle will immobilize, and air charged accumulator is topping up not, and this has just reduced the ability to work of hydraulic pulse generator.
Task of the present invention is to create a kind of hydraulic pulse generator, and this hydraulic pulse generator relies on and improves the waterpower pulse wave front that vibration machine can form the abrupt change that is used for fractured rock with enough cutting powers.
The proposed invention task solves with following manner: comprise the air charged accumulator that is connected with the vibration machine inlet tube in hydraulic pulse generator, this vibration machine has the housing of dress main piston in, the back piston chamber that forms the rear valve base chamber and communicate in the housing with constant pressure source, also comprise second air charged accumulator with barrier film, in the barrier film cavity of resorption of this air charged accumulator, be equipped with the piston of band piston rod, this piston and main piston complement each other to form rod end chamber, this chamber separates with the interior back piston chamber of dividing plate and vibration machine housing and communicates with atmosphere, and the barrier film cavity of resorption then communicates with bleed off pipe that choke valve is housed and outlet.According to the present invention, in the rear valve base chamber in the vibration machine housing quill is housed, the main piston of the vibration machine that can move therein is housed again in the sleeve, form a chamber that is connected with outlet between sleeve and the housing.
According to the present invention, the main piston range limiter is housed in the hydraulic pulse generator middle sleeve also suits.
According to the present invention, in hydraulic pulse generator, in vibration machine housing back piston chamber, the sleeve range limiter is set and also suits.
Therefore, in the device that is proposed, the sleeve that cooperatively interacts with valve seat is a kind of additional latch member.During the air charged accumulator topping up, can more reliably vibration machine inlet tube and rear valve base chamber be separated.In addition, sleeve is divided into the rear valve base chamber two chambers again, and one of them is an inner cavity chamber, and when main piston and valve seat disengaging, the pressure of this chamber equals the pressure in the inlet tube.This has guaranteed just that with regard to having guaranteed that having maximum pressure to fall acts on the main piston main piston has maximum translational speed, and this speed is determined by the pressure difference value between the constant pressure in input pressure in the inlet tube and the back piston chamber.Fluid path from inlet tube to the chamber that is connected with outlet has only when main piston leans against on the sleeve range limiter and sleeve is lifted off a seat and could form.This has just guaranteed the rapid increase of pressure in the outlet before nozzle.Guarantee that just the pulse forward has maximum steepness, improve the efficient of fractured rock, eliminate " making somebody a mere figurehead " phenomenon of main piston, thereby improved the reliability and the ability to work of device.
Further specify concrete structure of the present invention below in conjunction with accompanying drawing with embodiment.Accompanying drawing is the total sectional view of hydraulic pulse generator of the present invention.
Below in conjunction with specific embodiment essence of the present invention is described.
Hydraulic pulse generator comprises air charged accumulator 1, and this accumulator is connected on water main or the water pump (not shown on the figure) on the one hand, is connected again on the other hand on the inlet tube 2 of vibration machine 3.Vibration machine 3 has a housing 4, and main piston 5 wherein is housed, and forms rear valve base chamber 6 and back piston chamber 7, and back piston chamber 7 communicates with constant pressure source 8.In addition, hydraulic pulse generator also comprises second air charged accumulator 9 with barrier film 10, the piston 12 of band piston rod 13 is housed in barrier film cavity of resorption 11, piston 12 cooperatively interacts with main piston 5, below piston 12, form rod end chamber 14, this chamber separates with the back piston chamber of main piston 5 with dividing plate 15 and communicates with atmosphere by aperture 16, and barrier film cavity of resorption 11 itself communicates with outlet 19 and nozzle 20 by means of the overflow pipe 17 that choke valve 18 is housed again.The sleeve 21 that can move therein is housed in the housing 4 of vibration machine 3, movably main piston 5 is housed again in the sleeve 21, and 21 in sleeve has formed chamber 22 in housing 4, this chamber communicates with the outlet 19 of vibration machine 3.Have the range limiter 23 of main piston 5 on the sleeve 21 again.In addition, the range limiter 24 of sleeve 21 is housed again in back piston chamber 7,25 of valve seats are to be made by inlet tube 2 from main piston 5 and sleeve 21 1 sides.Air charged accumulator 1 includes barrier film 26, and barrier film 26 is leaning against under the compressed-air actuated effect on the gridiron 27; The barrier film 10 of second air charged accumulator 9 is equally also resting on the gridiron 28 under the compressed-air actuated effect.
The course of work of hydraulic pulse generator is as follows:
When by constant pressure source 8 backward during plunger shaft 7 voltage supply, the piston 12 of band piston rod 13 moves to second air charged accumulator 9 in barrier film cavity of resorption 11, disengages with main piston 5.This constant pressure is also with sleeve 21 with main piston 5 is shifted to valve seat 25 and make them tightly on valve seat.Sleeve 21 and main piston 5 are closed valve seat 25, stop water to flow into rear valve base chamber 6 and chamber 22 from the water inlet pipe 2 of vibration machine 3, then flow into the outlet pipe 19 of band nozzle 20 again, thereby the water that comes from water pump or main all injects water inlet pipe 2 and air charged accumulator 1, pushes and fill with barrier film 26 open spare between gridiron and the barrier film space from gridiron 27.The air pressure on the barrier film 26 and the pressure of the water under the barrier film constantly increase, and form the topping up process of air charged accumulator 1.The pressure that this process proceeds in water inlet pipe 2 and the air charged accumulator 1 always is increased to till such value, under this force value, act on the main piston 5 by the pressure in the water inlet pipe 2, area is equivalent to formed power on the part of valve seat 25 passage sections areas, can not act on power on the whole area on the main piston 5 greater than constant pressure source in the back piston chamber 7.From the power on the main piston 5 of acting on of water inlet pipe 2 and air charged accumulator 1 in case greater than the power on the main piston 5 of acting on from back piston chamber 7, main piston 5 just leaves valve pocket 25, this moment, rear valve base chamber 6 communicated with water inlet pipe 2, and supercharging pressure begins to act on the whole area of main piston 5.Thereby, sharply increase from the power that acts on the main piston 5 of water inlet pipe 2, quickened moving of main piston 5.Main piston 5 interacts at the terminal point of its motion range limiter 23 with sleeve 21, makes sleeve 21 break away from valve seats 25, and at this moment, water inlet pipe 2 communicates with rear valve base chamber 6 and chamber 22.Act on supercharging pressure on sleeve 21 areas when making sleeve 21 and main piston 5 shift to range limiter 24 in the housing 4 and improved the movement velocity of main piston 5.
Break away from valve seat 25 in a flash from sleeve 21, air charged accumulator 1 beginning release of pressure.Water is treated broken object with the form of pulse by nozzle 20 directives of outlet 19.Meanwhile, water injects barrier film cavity of resorption 11 along the bleed off pipe 17 that choke valve 18 is housed.At this moment, in fact moment rises to air pressure value in the air charged accumulator 9 to the pressure in the barrier film cavity of resorption.Pressure build-up slows down subsequently, and depends on the speed of the flow and the barrier film 10 extruding air of the water by choke valve 18.The area of considering piston 12 communicates with atmosphere than the big manyfold of area and the rod end chamber 14 of piston rod 13, when producing pressure in barrier film cavity of resorption 11, the piston 12 of band piston rod 13 moves to the position that connecting rod 13 and main piston 5 are in contact with one another from air charged accumulator 9.
In the process of air charged accumulator 1 release of pressure, the pressure in the water inlet pipe 2 reduces gradually, and the pressure in the back piston chamber 7 remains constant, and the pressure in the barrier film cavity of resorption 11 of air charged accumulator 9 increases gradually.This just causes and ought begin in a flash greater than the power that is applied on the main piston 5 from rear valve base chamber 6 through the power that piston rod 13 acts on the main piston 5 from barrier film cavity of resorption 11, and assurance main piston 5 is shifted to valve seat 25.At this moment, sleeve 21 still leans against on the range limiter 24, because the pressure that acts on sleeve 21 ends from rear valve base chamber 6 will be greater than the constant pressure the back piston chamber 7.The main piston 5 firm valve seats 25 of pushing down, the pressure in the chamber 6 and 22 just begins to approach atmospheric pressure, also moves on under the constant voltage effect of sleeve 21 in back piston chamber 7 to be bearing in till the valve seat 25, and the release of pressure process end of air charged accumulator 1 also restarts the topping up process.
In the topping up process, water flows into outlet 19 from barrier film cavity of resorption 11 along the overflow conduit 17 that choke valve 18 is housed under the compressed air effect of air charged accumulator 9, drain in the atmosphere through nozzle 20.During the firm arrival gridiron 28 of barrier film 10, the pressure in the barrier film cavity of resorption 11 is just reduced to atmospheric pressure, moves to air charged accumulator 9 again under the constant voltage effect of piston 12 in back piston chamber 7 of band piston rod 13, and its piston rod 13 disengages with main piston 5.
Repeat the course of work then.
Said structure form of the present invention relies on the forward of pulse abrupt change to guarantee to improve the efficient of fractured rock, the impact force of jet and the reliability of device.
Claims (2)
1, a kind of hydraulic pulse generator, comprise the air charged accumulator (1) that is connected with vibration machine (3), this vibration machine has a housing (4), be equipped with main piston (5) in the housing, this piston is formed rear valve base chamber (6) and communicated with constant pressure source (8) in housing back piston chamber (7), also comprise second air charged accumulator (9) with barrier film (10), the piston (12) of band piston rod (13) is housed in this air charged accumulator barrier film cavity of resorption (11), this piston and main piston (5) interact and form rod end chamber (14), this chamber separates with the back piston chamber (7) in the housing (4) of dividing plate (15) and vibration machine (3) and communicates with atmosphere, and barrier film cavity of resorption (11) communicates with bleed off pipe that choke valve (18) are housed (17) and outlet (19), it is characterized in that: the sleeve (21) that can move therein is housed in the housing (4) of vibration machine (3), the main piston (5) of the vibration machine (3) that can move therein is housed in this sleeve, this sleeve (21) forms chamber (22) in housing (4), this chamber is communicated with outlet, and this sleeve (21) also has the range limiter (23) of main piston (5).
2,, it is characterized in that being equipped with in the back piston chamber (7) in the housing (4) of vibration machine (3) range limiter (24) of sleeve (21) according to the described hydraulic pulse generator of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87100648 CN1010601B (en) | 1987-02-10 | 1987-02-10 | Hydraulic pulse generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87100648 CN1010601B (en) | 1987-02-10 | 1987-02-10 | Hydraulic pulse generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87100648A CN87100648A (en) | 1988-08-24 |
| CN1010601B true CN1010601B (en) | 1990-11-28 |
Family
ID=4812965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87100648 Expired CN1010601B (en) | 1987-02-10 | 1987-02-10 | Hydraulic pulse generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1010601B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298767C (en) * | 2004-05-12 | 2007-02-07 | 中国人民解放军国防科学技术大学 | High temperature high pressure synthesis method for polycarbosilane |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224309B (en) * | 2016-08-31 | 2018-03-20 | 中国船舶重工集团公司第七一八研究所 | A kind of oil-filled hydraulic system of piston type mud pulse generator |
-
1987
- 1987-02-10 CN CN 87100648 patent/CN1010601B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298767C (en) * | 2004-05-12 | 2007-02-07 | 中国人民解放军国防科学技术大学 | High temperature high pressure synthesis method for polycarbosilane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN87100648A (en) | 1988-08-24 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
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| C20 | Patent right or utility model deemed to be abandoned or is abandoned |