CN2205277Y - Super-high pressure water efflux universal cutter - Google Patents
Super-high pressure water efflux universal cutter Download PDFInfo
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- CN2205277Y CN2205277Y CN 93237588 CN93237588U CN2205277Y CN 2205277 Y CN2205277 Y CN 2205277Y CN 93237588 CN93237588 CN 93237588 CN 93237588 U CN93237588 U CN 93237588U CN 2205277 Y CN2205277 Y CN 2205277Y
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- abrasive material
- abrasive
- water
- accumulator
- input port
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Abstract
The utility model relates to a super-high pressure water efflux universal cutter, comprising a super-high pressure pump, an accumulator, an abrasive ejector, an abrasive control valve, a transport pipeline and a value. The utility model is characterized in that the side wall of the material mixing chamber of the abrasive ejector is provided with an abrasive input port and an airflow input port; the position of the abrasive input port is higher than a high pressure water spout; the position of the airflow input port is higher than the abrasive input port; the high pressure water inlet port and the high pressure water outlet port of the accumulator are positioned on the side wall of the accumulator; an airflow flow adjusting valve is arranged on the air inlet pipe of the abrasive control valve; the shaft lines of the sand inlet interface and the sand outlet interface of the abrasive control valve lie in the same straight line direction.
Description
The invention belongs to cutting mechanics.
The operation principle of ultra-high pressure water jet universal cutting machine, it is the high pressure that water is pressurized to thousands of kg/cm with super-pressure pump, be connected to a superfine aperture little, that made by high-abrasive material by special pipeline then and penetrate, at this moment the jet velocity of water can reach the several times velocity of sound.Utilize this one high effluxvelocity, object is cut.In high-speed jet,, can cut the hardest material as mixing abrasive material.Because of belonging to the normal temperature cutting, do not have that Yin Gaowen brings to being cut the heat affecting problem of material (as metallic plate, slabstone etc.).
The prior art that is close with the present invention is the 11-X type water jet cutting mach that U.S. fluid industrial group produces, its structure chart such as Fig. 1, motor (5) drives oil pump (6), output pressure reaches the fluid of 200 kg/cm, by pipeline (4), drive two-stage supercharging pump (3) (two-way double acting two-stage supercharging pump).By required cutting pressure and traffic requirement, booster pump (3) drives with the motor of 30-60 horsepower.The water under high pressure (pressure reaches about 3800 kg/cm) that pumps through booster pump (3) enters accumulator (2), and its effect is to rely on the compressibility of water to keep exporting the stability of water under high pressure pressure.The water under high pressure that is come out by accumulator (2) passes through pipeline (8) and valve (9), enters high-pressure water jet device (10), and workpiece (15) is cut, and this is the cutting of water purification jet.When the bigger workpiece of cutting hardness, can mix abrasive material in water under high pressure: the abrasive material in the abrasive material case (13) is under the negative-pressure siphon effect of the high-speed water jet generation of injector (10) ejection, enter injector (10) by abradant jet control valve (claiming sand valve or abrasive material control valve again) (12) and sediment transport pipe (11), form abrasive water-jet and cut.Have the abrasive material current that are cut the material chip and flow into collecting pit by reclaiming mouthful (16).Oil sump (7) forms oil supply loop to pump (6) and pump (3).(1) be water inlet, (14) are air admission hole.As seen from above-mentioned, the main building block of this machine has super-pressure pump, accumulator, injector, abradant jet control valve.There are some shortcomings in 11-X type machine made in U.S.A:
1, accumulator structure:
As shown in Figure 2, it is made up of water inlet (2a), delivery port (2f), cylindrical body (2d), cone seal nut (2c) and lock nut (2b), delivery port and water inlet have super-pressure woven hose (8b), (8a) respectively, woven hose (8b), (8a) pass sealed at both ends nut (2c) and lock nut (2b) respectively, woven hose (8b) and (8a) all along accumulator axial line horizontal arrangement.Thereby when the horizontal placement of accumulator, when the retaining liquid level exceeded the entery and delivery port position in the accumulator, the air on accumulator top promptly can't emptying, and there is remaining air gap in no discharge-channel.Thereby when system works, unavoidably produce pressure oscillation, make the jet pressure that is input in the injector inhomogeneous stable.Secondly, cone seal nut (2c) medial extremity is a slab construction, and it is higher to be stressed, make the sealing thread between sealing nut (2c) and the cylindrical body (2d) be subjected to bigger shear stress, be easy to lose envelope, reduce the pressure of water jet, influence pressure stability, this is an another shortcoming in the design.(2e) is the high-pressure water in the accumulator among Fig. 2.
2, abrasive jet device
As shown in Figure 3, high-pressure water (10a) is by water under high pressure input shower nozzle (10b) ejection, abrasive flows (10e) is owing to spray the negative-pressure siphon effect that produces, enter batch mixing chamber (10c) by sidewise hole, form the high speed abrasive water-jet, eject from abrasive material water output nozzle (10f), with the cutting material.This injector adopts one-sided plug-in type water sand mixing method, and water sand mixes inhomogeneous, causes expulsion pressure inhomogeneous stable, the one-sided serious wear of nozzle.(10d) is case of sprayer among Fig. 3.
3, abrasive material control valve:
As shown in Figure 4, (12d) is the import of sand milling material among the figure, adjusting screw(rod) (12j) pushing tow cross tapered plug regulating block (12f) moves up and down, regulating block (12f) top is taper, when regulating block (12f) when moving up and down, and the annular space size of advancing between the taper hole of sand interface (12e) changes thereupon, thereby regulates the sand flow amount.Under the effect of the negative-pressure siphon power that the powerful high water jet produces, add the thrust of air stream (12h), abrasive material is via sand export (12k), through sediment transport pipe (referring to Fig. 1), enter injector, quicken by water under high pressure, penetrate by water mill material input shower nozzle, process cutting.The major defect of this kind abrasive material control valve intersects at a right angle with the direction that exports (12k) in the import (12d) of abrasive material, has so increased the sand flow resistance.Secondly, the import of air stream (12h) does not have the device of regulating the air-flow size, easily causes the sand flow congestion phenomenon at sand export (12k), and sand flow speed can't be regulated, and has influence on the uniform and stable property of jet output.
At above-mentioned shortcoming, the objective of the invention is to design a kind of novel water jet cutting mach, it has more uniform and stable superhigh pressure jetting stream.
Below technical scheme of the present invention is illustrated one by one.Its structure as shown in Figure 5.From Fig. 5 as seen, the present invention includes super-pressure pump (22), accumulator (27), abrasive material case (30), abrasive material control valve (31), abrasive jet device (29), conveyance conduit (water delivery, sediment transport) and valve (water valve, sand valve).The connected mode of above-mentioned parts is, super-pressure pump (22) join with motor and water inlet pipe respectively (water tank (23) only is shown among the figure), the high-pressure water carrier pipe is passed through via valve (21) in the water side of pump (22), distributor (20), triple valve (18), load valve (17), join with the water inlet end (25) of accumulator (27), accumulator water side (26) joins by the water under high pressure input shower nozzle of water under high pressure conveyance conduit and abrasive jet device (29), abrasive material case (30) via abrasive material control valve (31), connects the abrasive material input port of abrasive jet device by sand delivering pipeline.
As seen from the above, the setting of above-mentioned critical piece of the present invention and connection and prior art are similar.Technological improvement feature of the present invention mainly is the improvement to the jeting effect of abrasive jet device, and this is to realize key of the present invention.The abrasive jet device can eject high velocity jet uniformly and stably, can realize task of the present invention.The jeting effect of abrasive jet device depends primarily on three factors: 1, the structure of injector itself; 2, injector input material state; 3, mixing and the running status of input material in injector.According to the above technical solution of the present invention is described further.
1, the improvement of accumulator structure:
To the requirement of accumulator, mainly be no remaining air gap after the retaining in the requirement device, otherwise the water under high pressure in the input abrasive jet device to fluctuate, influence the stability that the abrasive jet device is exported jet.Accumulator of the present invention comprises cylindrical body, is positioned at the import and the outlet of the seal cover at cylindrical body two ends, high-pressure water, it is characterized in that on the import of said high-pressure water and the cylindrical body that outlet is positioned at accumulator.The inboard of the end cover at said two ends is a sphere, between bulb and the accumulator chamber body sealing ring is arranged.
2, the improvement of abrasive material control valve:
The performance quality of abrasive material control valve has influence on the uniformity and the stability of the abrasive material in the input abrasive jet device, thereby has influence on the stability of abrasive jet device output jet.Abrasive material control valve of the present invention comprises sand inlet, the valve body with circular cone inner chamber, the interface that shakes out, tapered plug adjusting device and air inlet pipe, and first three parts joins successively, and the tapered plug adjusting device is positioned among the valve body, and air inlet pipe is positioned at body wall.It is characterized in that on the said air inlet pipe air flow rate control valve being arranged.Secondly, the said axis that advances sand interface and the interface that shakes out is in same rectilinear direction.
3, the improvement of abrasive jet device:
Abrasive jet device of the present invention comprises water under high pressure input shower nozzle, batch mixing chamber, abrasive material input port, abrasive material water output nozzle, water under high pressure input shower nozzle and abrasive material water output nozzle connect the import and the outlet in batch mixing chamber respectively, the abrasive material input port is positioned at batch mixing chamber sidewall, and upright position, abrasive material input port is higher than the spout of water under high pressure input shower nozzle.There is the input port of input air stream in the batch mixing chamber that it is characterized in that said injector, and it is positioned at the side wall portion in said batch mixing chamber, and is positioned at the top of abrasive material input port, and said batch mixing chamber sidewall inner chamber is designed to accurate parabolic shape.On the air inlet pipe of input air stream, the air flow rate control valve is arranged.
Because design has the air-flow input port above the abrasive material input port of batch mixing chamber sidewall, batch mixing chamber sidewall inner chamber is designed to accurate parabolic shape, the upright position of the spout of water under high pressure input shower nozzle is lower than the abrasive material input port, so the abrasive material of injecting from the abrasive material input port is subjected to the downward siphon power of negative pressure generation that high-pressure water jet forms on the one hand, the effect of the spiral air flow of the downward direction that the air-flow that is subjected to importing from the air-flow input port on the other hand forms in the batch mixing chamber, make the abrasive material of injecting in the batch mixing chamber, form the abrasive material spiral flow of downward direction, when abrasive material arrives the injector lower end, under the effect of effect in the venturi, the negative pressure of the water under high pressure that is sprayed into sucks water jet, so that can be equably in injector the energy of water jet be delivered to abrasive particle, abrasive particle can be by even, the stable high speed (being several times as much as velocity of sound) that accelerates to realizes objects of cutting.Design has the air flow rate control valve on the air inlet pipe of abrasive material control valve, the abrasive material control valve advanced sand interface and the axis designs of interface of shaking out in same rectilinear direction, so both reduced the sand flow resistance, the abrasive material flow that helps again to enter the abrasive jet device is adjusted to uniform and stable optimum value.The water inlet and the delivery port of accumulator are designed on cylindrical body, can eliminate the remaining air gap in the accumulator, make the water under high pressure pressure stability of output; Sealed at both ends rubbing surface of end cover is designed to sphere, and the design sealing ring, helps the sealing that keeps good, keeps the output water pressure uniform and stable.
Above-mentioned each technological improvement feature, with the design of the batch mixing chamber of injector the input port of input air stream being arranged is topmost feature.Under the situation that this feature can satisfy,, the uniformity and the stability of output high-pressure spray are improved significantly even select the accumulator or the abrasive material control valve of other structures for use.Certainly, as add accumulator of the present invention and abrasive material control valve, better technique effect is then arranged.
Fig. 1 is the U.S. 11-X of a fluid industrial group type water jet cutting mach structure chart;
Fig. 2 is accumulator structure figure in the 11-X jet cutting machine;
Fig. 3 is an abrasive jet device structure chart in the 11-X jet cutting machine;
Fig. 4 is an abrasive material control valve structure chart in the 11-X jet cutting machine;
Fig. 5 is a water jet cutting mach structure chart of the present invention;
Fig. 6 is accumulator structure figure among the present invention;
Fig. 7 is abrasive material control valve structure chart among the present invention;
Fig. 8 is abrasive jet device structure chart among the present invention;
Below provide embodiments of the invention:
Referring to Fig. 6, the import (27b) and the outlet (27d) of high-pressure water are arranged on the cylindrical body of accumulator (27c), import (27b) and outlet (27d) can design above sidewall, also can design respectively at upper and lower both direction.Sealing ring between bulb and the accumulator chamber body face adopts blowout prevention ring pad with zero type sealing ring, guarantees bore seal.The accumulator cavity is selected ultimate tensile strength σ b 〉=100 kilogram/square millimeter, the steel alloy of percentage elongation δ 〉=15% for use: as 38Cr MOA1, and 33CrNi3Mo, 35CrMnMo etc. preferentially select 35CrMnMo for use.The material of spiral end socket uses the 40Cr material to get final product.
The abrasive jet device sees that Fig. 8 shows, (29a) be the water under high pressure interface, (29b) be the high-pressure water jet device, there is built-in nozzle (29l) its lower end, (29c) be clamping nut, (29d) be air flow inlet and control valve thereof, (29e) be the abrasive material input pipe, (29f) be the batch mixing chamber, (29g) being the abrasive material nozzle block, (29h) is the positioning screw cap seat, (29i) is abrasive jet, (29j) be the volute spring folder, (29k) being inserts, (29m) is positioning screw cap, (29n) is positioning pressuring plate, each parts relative position as shown, high-pressure water jet device (29b) has built-in nozzle (29l), and its spout upright position is positioned at below, abrasive material input port (29e), and abrasive material input port (29e) is positioned at the sidewall of batch mixing chamber (29f), air stream input port (29d) also is positioned at the sidewall of batch mixing chamber (29f), and is positioned at the top of abrasive material input port (29e).Other each parts relative positions as shown.
Injector batch mixing cavity can adopt the 40Cr material, and its intensity of the material of abrasive material nozzle block and case hardness should be greater than the materials in batch mixing chamber, and hardness should reach Hrc=60-62.Abrasive jet can be used carbide alloy Bk3 etc., and hardness should be at Hrc=81-83.
Abrasive material control valve structure is seen Fig. 7, wherein (31a) is hand wheel, (31b) be helical screw, (31c) for sediment transport adapter down, (31d) being adjusting nut, (31e) is pull bar, (31f) be last end bearing, be that last sediment transport is taken over (31g), (31h) be sediment transport pipe on the plastics, (31i) be sand inlet, (31j) be awl end cross telescopic head, (31k) be ○Xing Mifengquan, (31l), (31m) be spacing garden pin for the cock of awl end gas flow modulation, (31n) be following end bearing, (31o) being dog screw, (31p) is sediment transport pipe under the plastics, and each parts relative position such as Fig. 7 illustrate.Last end bearing (31f) has the sand export of circular cone inner chamber, itself and adjusting nut (31d) double as are valve body, wherein adjusting nut (31d) has the sand export of circular cone inner chamber, and hand wheel (31a) joins with helical screw (31b), adjusting nut (31d), awl end cross telescopic head (31j) successively.As rotating wheel (31a), screw mandrel (31b), nut (31d) rotate successively, and cross telescopic head (31j) is moved up and down, and the annular slot size between the circular cone inner chamber of its awl end and last end bearing (31f) changes thereupon, and making into, the sand flow amount changes thereupon.Rotating cone end barometric damper (31l) changes the throughput that feeds valve body, the pressure state in the valve body is changed, thereby the sand flow amount is changed thereupon.Wherein awl end cross telescopic head material can adopt steel alloy 40Cr, quenching hardness Hrc=45-48.
Referring to Fig. 5, super-pressure pump among the figure (22) adopts the super-pressure reciprocating pump, once pressurization puts in place, replace hydraulicdriven twice booster pump, 3WCB-4(9134A for example) type pump, directly drive force (forcing) pump by the driven by motor flywheel, the highest pressurization (medium is a water) can reach 4000 kg/cm, and flow is 2 liters/minute.
Below be the test data that the present invention cuts different materials:
| Material | Material thickness (millimeter) | Nozzle diameter (millimeter) | The pressure kilograms per centimeter | The cutting speed millimeter/minute | Cross section quality |
| Quartz glass | 50 | 1.2(sand blasting is chewed) | 2200 | 120 | Fine |
| The 65Mn alloy- |
12 | 1.2(sand blasting is chewed) | 2200 | 50 | |
| Marble | |||||
| 20 | 1.2(sand blasting is chewed) | 2200 | 1000 | | |
| Rubber | |||||
| 20 | 0.2(the water nozzle) | 3400 | 6000 | Fine | |
| Asbestos board | 6 | (0.2 water nozzle) | 3400 | 12000 | Fine |
Claims (8)
1, ultra-high pressure water jet universal cutting machine comprises super-pressure pump, accumulator, abrasive material case, abrasive material control valve, abrasive jet device, conveyance conduit and valve; Wherein the abrasive jet device comprises water under high pressure input shower nozzle, batch mixing chamber, abrasive material input port, abrasive material water output nozzle, water under high pressure input shower nozzle and abrasive material water output nozzle connect import of batch mixing chamber and outlet respectively, the abrasive material input port is positioned at batch mixing chamber sidewall, and upright position, abrasive material input port is higher than water under high pressure input shower nozzle spout; Wherein accumulator comprise cylindrical body, be positioned at the end cover at cylindrical body two ends, the import and the outlet of high-pressure water; Wherein the abrasive material control valve comprise have a conical cavity advance sand interface, valve body, the interface that shakes out, tapered plug adjusting device and air inlet pipe, first three parts joins successively, air inlet pipe is positioned at body wall;
Super-pressure pump joins with motor and water inlet pipe respectively, its water side joins via valve and accumulator by the high-pressure water transfer pipeline, the accumulator water side joins through the water under high pressure input shower nozzle of water under high pressure conveyance conduit and abrasive jet device, the abrasive material case via the abrasive material control valve, connects the abrasive material input port of abrasive jet device by sand delivering pipeline;
There is the input port of input air stream in the batch mixing chamber that the invention is characterized in said injector.
2, according to the said cutting machine of claim 1, the sidewall inner chamber that it is characterized in that the batch mixing chamber of said injector is accurate parabolic shape.
3,, it is characterized in that the input port of said input air stream is positioned at the side wall portion in batch mixing chamber according to the said cutting machine of claim 1.
4,, it is characterized in that the input port of said input air stream is positioned at the top of abrasive material input port according to the said cutting machine of claim 3.
5,, it is characterized in that on the air inlet pipe of said abrasive material control valve the air flow rate control valve being arranged according to the said cutting machine of claim 1.
6,, it is characterized in that the sand interface that advances of said abrasive material control valve is in same rectilinear direction with the axis of interface of shaking out according to the said cutting machine of claim 1.
7,, it is characterized in that on the high-pressure water import of said accumulator and the cylindrical body that outlet is positioned at accumulator according to the said cutting machine of claim 1.
8, according to the said cutting machine of claim 1, the inboard that it is characterized in that the end cover of said accumulator is a sphere, between bulb and the accumulator chamber body sealing ring is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93237588 CN2205277Y (en) | 1993-09-03 | 1993-09-03 | Super-high pressure water efflux universal cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93237588 CN2205277Y (en) | 1993-09-03 | 1993-09-03 | Super-high pressure water efflux universal cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2205277Y true CN2205277Y (en) | 1995-08-16 |
Family
ID=33812511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93237588 Expired - Fee Related CN2205277Y (en) | 1993-09-03 | 1993-09-03 | Super-high pressure water efflux universal cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2205277Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216770A (en) * | 2016-07-26 | 2016-12-14 | 江苏大学 | A kind of processing method based on high-pressure water jet cavitation effect and device |
| CN108940105A (en) * | 2018-06-28 | 2018-12-07 | 中国矿业大学 | A kind of mixing arrangement that can accurately control abrasive concentration before jet stream |
-
1993
- 1993-09-03 CN CN 93237588 patent/CN2205277Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216770A (en) * | 2016-07-26 | 2016-12-14 | 江苏大学 | A kind of processing method based on high-pressure water jet cavitation effect and device |
| CN108940105A (en) * | 2018-06-28 | 2018-12-07 | 中国矿业大学 | A kind of mixing arrangement that can accurately control abrasive concentration before jet stream |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |