CN114473883B - Active feeding type abrasive water jet nozzle device - Google Patents
Active feeding type abrasive water jet nozzle device Download PDFInfo
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- CN114473883B CN114473883B CN202210202953.0A CN202210202953A CN114473883B CN 114473883 B CN114473883 B CN 114473883B CN 202210202953 A CN202210202953 A CN 202210202953A CN 114473883 B CN114473883 B CN 114473883B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
- B24C5/04—Nozzles therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0007—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier
- B24C7/0015—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier
- B24C7/0023—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier of feed pressure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention relates to an active feeding type abrasive water jet nozzle device, which comprises a jet part, wherein the jet part comprises a high-pressure water inlet joint, a material mixing cavity and a nozzle which are coaxially arranged and sequentially connected, the high-pressure water inlet joint is detachably connected and communicated with one end of the material mixing cavity, the other end of the material mixing cavity is detachably connected and communicated with the nozzle, the inner diameter of one end, close to the material mixing cavity, of the high-pressure water inlet joint is smaller than that of the nozzle, and an abrasive inlet and an air inlet are formed in the material mixing cavity; the feeding part comprises a high-pressure water regulating and controlling component and an abrasive regulating and controlling component, the output end of the high-pressure water regulating and controlling component is communicated with the high-pressure water inlet connector, and the abrasive output end is communicated with the abrasive inlet. The active feeding type abrasive water jet nozzle device provided by the invention can improve the grinding feeding precision, improve the mixing effect of the abrasive and high-pressure water and improve the processing precision.
Description
Technical Field
The invention relates to an active feeding type abrasive water jet nozzle device, and belongs to the technical field of abrasive water jet machining.
Background
Abrasive water jet machining is divided into a pre-mixed abrasive water jet and a post-mixed abrasive water jet according to different mixing modes of water and abrasives. The pre-mixed abrasive water jet is formed by mixing an abrasive and water into an abrasive solution, then pressurizing the abrasive solution and passing through a nozzle to form abrasive water jet beam jet, but has the defects of serious abrasion of a working part, easy precipitation and blockage of the abrasive in the transmission process, inconvenient adjustment of the concentration and flow of the abrasive and the like.
At present, the post-mixing abrasive water jet is an adsorption type abrasive material supply, namely, the ultra-high pressure pure water jet forms negative pressure in a mixing cavity to suck the abrasive material into the mixing cavity, so that the effective acceleration of the abrasive material is realized in the mixing cavity and an abrasive pipe. However, in the micro abrasive water jet processing system, the abrasive grain size is small, and the abrasive is easy to arch and agglomerate, and the like, and the system has the following defects: 1. the superfine grinding materials are easy to arch at a blanking port of the storage bin, so that the feeding is interrupted; 2. the micro-fine mill is easy to agglomerate in the feeding pipe, so that blockage is caused; 3. the water mist caused by the high-pressure water jet increases the viscous resistance, so that the superfine grinding materials are difficult to be sucked by utilizing negative pressure, the instability of the suction quantity of the grinding materials is caused, and even the grinding material inlet of a spray head is blocked; 4. because the superfine abrasive is easy to arch, agglomerate and form water mist, the supply amount of the abrasive is unstable, and the accurate control of the supply amount of the abrasive cannot be realized; 5. the solid abrasive is not uniformly mixed with the water; 6. since the abrasive is passively sucked in by negative pressure, the abrasive concentration is not controllable. However, complete mixing, precise control, and uniformity of the abrasive are critical to ensure the quality of the fine abrasive water jet machining.
Disclosure of Invention
The invention aims to provide an active feeding type abrasive water jet nozzle device, which can improve the feeding precision of grinding, improve the mixing effect of abrasive and high-pressure water and improve the processing precision.
The technical scheme for solving the technical problems is as follows: an active feed abrasive water jet head apparatus comprising:
the spraying part comprises a high-pressure water inlet joint, a mixing cavity and a nozzle which are coaxially arranged and sequentially connected, the high-pressure water inlet joint is detachably connected and communicated with one end of the mixing cavity, the other end of the mixing cavity is detachably connected and communicated with the nozzle, the inner diameter of one end, close to the mixing cavity, of the high-pressure water inlet joint is smaller than that of the nozzle, and a grinding material inlet and an air inlet are formed in the mixing cavity;
the feeding part comprises a high-pressure water regulation and control component and an abrasive regulation and control component, the high-pressure water regulation and control component output end is communicated with the high-pressure water inlet connector, and the abrasive output end is communicated with the abrasive inlet.
The beneficial effects of the invention are: the high-pressure water regulating and controlling assembly pressurizes water to the pressure required by work, the water is conveyed to the high-pressure water inlet connector and is jetted out from the outlet of the high-pressure water inlet connector to form a high-pressure water column, the grinding material regulating and controlling assembly is used for preparing grinding materials into grinding material liquid and conveying the grinding material liquid to the grinding material inlet, and the grinding material liquid is prepared into the grinding material liquid, so that the mixing effect of the grinding material liquid and the high-pressure water column can be improved; compared with solid abrasives, the abrasive liquid is not easy to block an abrasive inlet and a nozzle; the high-pressure water inlet connector, the material mixing cavity and the nozzle are coaxially arranged, the inner diameter of one end, close to the material mixing cavity, of the high-pressure water inlet connector is smaller than that of the nozzle, and a high-pressure water column can penetrate through the material mixing cavity and directly jet out from a nozzle opening, so that abrasion to the inner wall of the nozzle is reduced; the high-pressure water column is mixed with the abrasive solution in the high-speed operation of the mixing cavity; set up air inlet and prevent because high-pressure water column high-speed flow makes the interior negative pressure that produces of compounding cavity, in sucking a large amount of abrasive materials liquid in the compounding cavity in the twinkling of an eye, influence abrasive materials liquid feed precision, can also guarantee that atmospheric pressure is stable in the compounding cavity, improve high-pressure water column's stability.
On the basis of the technical scheme, the invention can be improved as follows.
Furthermore, two air inlets are symmetrically formed in the material mixing cavity relative to the abrasive material inlet.
The beneficial effect of adopting the further scheme is that: two air inlets are arranged to increase air circulation, so that the air pressure in the mixing cavity is the same as the atmospheric pressure; and two air inlets are symmetrically arranged, so that the influence on the stability of a high-pressure water column ejected by the high-pressure water inlet joint is reduced to the greatest extent when air enters the mixing cavity.
Furthermore, a section of first connecting pipe extends from the grinding material inlet to the outer side of the mixing cavity, and a section of second connecting pipe extends from the air inlets to the outer side of the mixing cavity.
The beneficial effect of adopting the above further scheme is: the first connecting pipe is conveniently connected with the abrasive material regulating and controlling assembly, so that the first connecting pipe is convenient to disassemble and assemble; the second connecting pipe can control the angle of air admission compounding cavity, reduces the influence to the high-pressure water column stability that high pressure water supply connector jetted out.
Further, the axis of first connecting pipe and the axis of second connecting pipe all with high pressure water supply connector's axis is crossing, the free end of first connecting pipe to high pressure water pipe lopsidedness arranges and its axis with high pressure water supply connector's axis contained angle is 30 ~ 40 degrees, second connecting pipe free end to high pressure water pipe lopsidedness arranges and its axis with high pressure water supply connector's axis contained angle is 30 ~ 40 degrees.
The beneficial effect of adopting the further scheme is that: the grinding materials entering the mixing cavity from the grinding material inlet are ensured to be contacted with the high-pressure water column entering the mixing cavity from the high-pressure water inlet joint and can be quickly mixed into the high-pressure water column, so that the mixing effect is improved; the mixing effect is best when the included angle between the axis of the first connecting pipe and the axis of the high-pressure water inlet connector is 30-40 degrees; the axis included angle between the second connecting pipe and the high-pressure water inlet joint is 30-40 degrees, and the stability of the high-pressure water column is best.
Further, still include high pressure water nozzle, high pressure water nozzle demountable installation be in high pressure water supply connector is close to the one end of compounding cavity, high pressure water nozzle with compounding cavity intercommunication, high pressure water nozzle internal diameter is less than the nozzle internal diameter, high pressure water nozzle with the nozzle is coaxial to be arranged.
The beneficial effect of adopting the further scheme is that: the high-pressure water column is sprayed out from the high-pressure water nozzle, and the high-pressure water nozzle is replaced according to the diameter of the high-pressure water column, so that the method is simple and convenient; and the high-pressure water column rubs with the high-pressure water nozzle for a long time, is easy to damage, only needs to replace the high-pressure water nozzle, is simple and convenient, and saves the cost.
Further, the compounding cavity corresponds high pressure water supply connector sets up first screw hole, high pressure water supply connector with compounding cavity threaded connection, the compounding cavity corresponds the second screw hole is seted up to the nozzle, the nozzle with compounding cavity threaded connection.
The beneficial effect of adopting the further scheme is that: the threaded connection is convenient to disassemble and assemble and simple in structure.
The material mixing device further comprises a clamp, wherein the clamp is sleeved on the nozzle and clamps the nozzle tightly on the material mixing cavity.
The beneficial effect of adopting the above further scheme is: anchor clamps improve the firmness of nozzle and compounding cavity, prevent that the during operation nozzle from taking place the skew and becoming flexible, influencing machining efficiency and quality.
Furthermore, the high-pressure water regulation and control assembly comprises a plurality of sections of high-pressure pipes, and a valve, an energy accumulator, a first pressure gauge, a pressure regulating valve, a second pressure gauge and a first connecting head which are sequentially communicated through the high-pressure pipes, wherein the first connecting head is detachably connected with the high-pressure water inlet connector.
The beneficial effect of adopting the above further scheme is: the valve is opened to convey high-pressure water into the energy accumulator, the energy accumulator can set pressure, the internal pressure is stabilized at a pressure value, the stability of a high-pressure water column is improved, and the processing quality is improved; the first pressure gauge can detect the pressure value in the energy accumulator in real time, and the stability of the pressure of the high-pressure water column is ensured; the pressure regulating valve can regulate the pressure output by the energy accumulator to the pressure required by work; the second pressure gauge detects the pressure value of the high-pressure water column which is injected into the mixing cavity after being regulated by the pressure regulating valve in real time, so that the processing quality is improved; the first connecting joint is convenient to disassemble and assemble with the high-pressure water inlet joint.
Further, abrasive material regulation and control subassembly includes multisection abrasive material conveyer pipe and passes through liquid reserve tank, delivery pump, flow valve and the second connector that the abrasive material conveyer pipe communicates in proper order, the second connector with first connecting pipe can be dismantled and be connected.
The beneficial effect of adopting the above further scheme is: the mixed abrasive liquid in the liquid storage tank is conveyed to the first connecting pipe through the second connector by the conveying pump and enters the mixing cavity, and the flow valve records the abrasive liquid conveyed to the mixing cavity so as to accurately control the conveying flow of the abrasive liquid; the second connector and the first connector are convenient to disassemble and assemble.
Further, still include controller, motor and stirring piece, the motor is fixed on the liquid reserve tank, the stirring piece rotates to be connected in the liquid reserve tank, the motor output with the transmission of stirring piece is connected, the controller respectively with the motor delivery pump and flow valve electricity are connected.
The beneficial effect of adopting the further scheme is that: the motor drives the stirring piece and rotates, improves the degree of consistency that the abrasive material mixes, and controller control motor, delivery pump work are carried the abrasive material liquid of stirring to mix with high-pressure water column in the compounding cavity, and the abrasive material liquid flow of flow valve record input compounding cavity to the concentration that control abrasive material liquid and high-pressure water column mix improves processingquality.
Drawings
FIG. 1 is a schematic structural diagram of an active feed type abrasive water jet head device according to the present invention;
FIG. 2 isbase:Sub>A half sectional view taken along line A-A of FIG. 1;
fig. 3 is a connection diagram of components of a high pressure water regulating and controlling assembly and an abrasive regulating and controlling assembly in the active feed type abrasive water jet head device according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-high pressure water inlet joint, 2-mixing cavity, 3-nozzle, 41-high pressure pipe, 42-valve, 43-energy accumulator, 44-first pressure gauge, 45-pressure regulating valve, 46-second pressure gauge, 47-first connecting joint, 51-abrasive material conveying pipe, 52-liquid storage tank, 53-conveying pump, 54-flow valve, 55-controller, 56-motor, 57-stirring piece, 6-first connecting pipe, 7-second connecting pipe, 8-high pressure water nozzle, 9-clamp and 10-air inlet.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
The invention aims to provide an active feeding type abrasive water jet nozzle device, which is used for solving the problems in the prior art, and can improve the grinding feeding precision, improve the mixing effect of abrasive and high-pressure water and improve the processing precision.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides an active feeding type abrasive water jet nozzle device, in a specific embodiment of the invention, as shown in fig. 1 to 3, the device comprises:
the spraying part comprises a high-pressure water inlet connector 1, a mixing cavity 2 and a nozzle 3 which are coaxially arranged and sequentially connected, the high-pressure water inlet connector 1 is detachably connected and communicated with one end of the mixing cavity 2, the other end of the mixing cavity 2 is detachably connected and communicated with the nozzle 3, the inner diameter of one end, close to the mixing cavity, of the high-pressure water inlet connector 1 is smaller than that of the nozzle 3, and a grinding material inlet and an air inlet 10 are formed in the mixing cavity 2;
the feeding part comprises a high-pressure water regulating and controlling component and an abrasive regulating and controlling component, the output end of the high-pressure water regulating and controlling component is communicated with the high-pressure water inlet connector 1, and the abrasive output end is communicated with the abrasive inlet.
The invention provides an active feeding type abrasive water jet nozzle device.A high-pressure water regulating and controlling component pressurizes water to the pressure required by work, the water is conveyed to a high-pressure water inlet connector 1 and is ejected from the outlet of the high-pressure water inlet connector 1 to form a high-pressure water column, an abrasive regulating and controlling component prepares abrasives into abrasive liquid and conveys the abrasive liquid to an abrasive inlet, and the abrasive liquid prepared by the abrasives can improve the mixing effect with the high-pressure water column; compared with solid abrasives, the abrasive liquid is not easy to block the abrasive inlet and the nozzle 3; the high-pressure water inlet connector 1, the material mixing cavity 2 and the nozzle 3 are coaxially arranged, the inner diameter of one end, close to the material mixing cavity, of the high-pressure water inlet connector 1 is smaller than that of the nozzle 3, and a high-pressure water column can penetrate through the material mixing cavity 2 and directly eject from an opening of the nozzle 3, so that the abrasion to the inner wall of the nozzle 3 is reduced; the high-pressure water column is mixed with the abrasive solution in the high-speed operation in the mixing cavity 2; set up air inlet 10 and prevent to make because the high-speed negative pressure that produces in the compounding cavity 2 that flows of high-pressure water column, in inhaling compounding cavity 2 with a large amount of abrasive materials liquid in the twinkling of an eye, influence abrasive materials liquid feed precision, can also guarantee that the internal gas pressure of compounding cavity 2 is stable, improves high-pressure water column's stability.
Preferably, the nozzle 3 is a sand pipe; the inner diameter of the nozzle 3 can be selected from various sizes, which are 0.50mm, 0.76mm, 1.02mm and 1.26mm respectively.
In a specific embodiment of the present invention, two air inlets 10 are symmetrically formed on the mixing chamber 2 with respect to the abrasive inlet.
Two air inlets 10 are arranged to increase air circulation, so that the air pressure in the mixing cavity 2 is the same as the atmospheric pressure; and two air inlets 10 are symmetrically arranged, so that the influence on the stability of a high-pressure water column ejected by the high-pressure water inlet joint 1 is reduced to the greatest extent when air enters the mixing cavity 2.
In a specific embodiment of the present invention, a first connecting pipe 6 extends from the abrasive inlet to the outer side of the mixing cavity 2, and a second connecting pipe 7 extends from both the two air inlets 10 to the outer side of the mixing cavity 2.
The first connecting pipe 6 is conveniently connected with the abrasive regulating and controlling assembly, so that the assembly and disassembly are convenient; the angle that the air got into compounding cavity 2 can be controlled to second connecting pipe 7, reduces the influence to the high-pressure water column stability that high pressure water supply connector 1 jetted out.
In a specific embodiment of the invention, the axial line of the first connecting pipe 6 and the axial line of the second connecting pipe 7 are intersected with the axial line of the high-pressure water inlet joint 1, the free end of the first connecting pipe 6 is obliquely arranged towards one side of the high-pressure water pipe, the included angle between the axial line of the first connecting pipe and the axial line of the high-pressure water inlet joint 1 is 30-40 degrees, the free end of the second connecting pipe 7 is obliquely arranged towards one side of the high-pressure water pipe, and the included angle between the axial line of the second connecting pipe 7 and the axial line of the high-pressure water inlet joint 1 is 30-40 degrees.
The abrasive entering the mixing cavity 2 from the abrasive inlet is in contact with the high-pressure water column entering the mixing cavity 2 from the high-pressure water inlet connector 1 and can be rapidly mixed into the high-pressure water column, and the mixing effect is improved; the included angle between the axis of the first connecting pipe 6 and the axis of the high-pressure water inlet joint 1 is 30-40 degrees, preferably 30 degrees, and the mixing effect is optimal; the included angle between the second connecting pipe 7 and the axis of the high-pressure water inlet joint 1 is 30-40 degrees, preferably 30 degrees, and the stability of the high-pressure water column is the best.
In a specific embodiment of the invention, the water mixing device further comprises a high-pressure water nozzle 8, the high-pressure water nozzle 8 is detachably mounted at one end, close to the material mixing cavity 2, of the high-pressure water inlet connector 1, the high-pressure water nozzle 8 is communicated with the material mixing cavity 2, the inner diameter of the high-pressure water nozzle 8 is smaller than that of the nozzle 3, and the high-pressure water nozzle 8 and the nozzle 3 are coaxially arranged.
The high-pressure water column is sprayed out from the high-pressure water nozzle 8, and the high-pressure water nozzle 8 is replaced according to the diameter of the high-pressure water column, so that the method is simple and convenient; the high-pressure water column and the high-pressure water nozzle 8 rub for a long time and are easy to damage, only the high-pressure water nozzle 8 needs to be replaced, and the method is simple and convenient and saves cost; preferably, the high-pressure water nozzle 8 is a gem spray head; the high pressure water nozzle 8 has an inner diameter of 0.33mm.
In a specific embodiment of the invention, a first threaded hole is formed in the material mixing cavity 2 corresponding to the high-pressure water inlet connector 1, the high-pressure water inlet connector 1 is in threaded connection with the material mixing cavity 2, a second threaded hole is formed in the material mixing cavity 2 corresponding to the nozzle 3, the nozzle 3 is in threaded connection with the material mixing cavity 2, the threaded connection is convenient to disassemble and assemble, and the structure is simple.
In a specific embodiment of the invention, the mixing device further comprises a clamp 9, wherein the clamp 9 is sleeved on the nozzle 3 and clamps the nozzle 3 on the mixing cavity 2.
The fixture 9 improves the firmness of the nozzle 3 and the mixing cavity 2, and prevents the nozzle 3 from deviating and loosening during working to influence the processing efficiency and quality; preferably, the nozzle 3 is screwed to the mixing chamber 2 by means of a clamp 9.
In an embodiment of the present invention, the high pressure water regulating assembly comprises a plurality of high pressure pipes 41, and a valve 42, an energy accumulator 43, a first pressure gauge 44, a pressure regulating valve 45, a second pressure gauge 46 and a first connection head 47 which are sequentially communicated with each other through the high pressure pipes 41, wherein the first connection head 47 is detachably connected with the high pressure water inlet connector 1.
The valve 42 is opened to convey high-pressure water into the energy accumulator 43, the energy accumulator 43 can set the pressure, the internal pressure is stabilized at a pressure value, the stability of a high-pressure water column is improved, and the processing quality is improved; the first pressure gauge 44 can detect the pressure value in the energy accumulator 43 in real time, so that the stability of the pressure of the high-pressure water column is ensured; the pressure regulating valve 45 can regulate the pressure output from the accumulator 43 to the pressure required for operation; the second pressure gauge 46 detects the pressure value of the high-pressure water column injected into the material mixing cavity 2 after being regulated by the pressure regulating valve 45 in real time, so that the processing quality is improved; the first connector 47 is convenient to be assembled and disassembled with the high-pressure water inlet connector 1.
In one embodiment of the present invention, the abrasive conditioning assembly comprises a plurality of abrasive conveying pipes 51, and a liquid storage tank 52, a conveying pump 53, a flow valve 54 and a second connector which are sequentially communicated with each other through the abrasive conveying pipes 51, wherein the second connector is detachably connected with the first connecting pipe 6.
The mixed abrasive liquid in the liquid storage tank 52 is conveyed to the first connecting pipe 6 through the second connector by the conveying pump 53 and enters the material mixing cavity 2, and the flow valve 54 records the abrasive liquid conveyed to the material mixing cavity 2 so as to accurately control the conveying flow of the abrasive liquid; the second connector and the first connecting pipe 6 are convenient to disassemble and assemble; preferably, the transfer pump 53 is a low-pressure pump.
In a specific embodiment of the present invention, the present invention further comprises a controller 55, a motor 56 and a stirring member 57, wherein the motor 56 is fixed on the liquid storage tank 52, the stirring member 57 is rotatably connected in the liquid storage tank 52, an output end of the motor 56 is in transmission connection with the stirring member 57, and the controller 55 is electrically connected with the motor 56, the delivery pump 53 and the flow valve 54 respectively.
The motor 56 drives the stirring piece 57 to rotate, so that the mixing uniformity of the abrasive materials is improved, the controller 55 controls the motor 56 and the conveying pump 53 to work, the uniformly stirred abrasive liquid is conveyed into the material mixing cavity 2 to be mixed with the high-pressure water column, and the flow valve 54 records the flow of the abrasive liquid input into the material mixing cavity 2, so that the mixing concentration of the abrasive liquid and the high-pressure water column is controlled, and the processing quality is improved; preferably, the motor 56 is a servo motor 56.
The active feeding type abrasive water jet nozzle device provided by the embodiment of the invention has the following working process of regulating and controlling the concentration of abrasive liquid and the mixed concentration of high-pressure water columns:
first, a concentration of C is prepared in the stock tank 52 2 The motor 56 drives the stirring piece 57 to rotate at a high speed, so that the grinding liquid in the liquid storage tank 52 is uniformly mixed; the flow valve 54 then transmits the data to the controller 55, and the controller 55 controls the delivery pump 53 to precisely control the delivery flow rate of the high-concentration abrasive liquid, wherein the delivery flow rate per minute of the high-concentration abrasive liquid is Q 2 As shown in fig. 3.
The high pressure water flow sprayed out by the high pressure water nozzle 8 is:
in the formula Q 1 The flow rate (mL/min) of pure water sprayed from the high-pressure water nozzle 8;
p-outlet pressure (MPa) of the high pressure water nozzle 8;
d-diameter (mm) of the high-pressure water nozzle 8.
The flow of the high-concentration abrasive liquid input from the abrasive inlet is as follows:
Q 2 ＝0.5n (2)
in the formula Q 2 -the flow rate (mL/min) of the high concentration abrasive liquid fed at the abrasive inlet;
n-rotational speed of flow valve 54 (r/min).
The total flow of the abrasive liquid sprayed through the nozzle 3 was:
q is the flow rate (mL/min) of the abrasive liquid sprayed out through the nozzle 3;
the abrasive concentration sprayed out through the nozzle 3 is:
c is the concentration (g/L) of the abrasive liquid sprayed from the nozzle 3;
C 2 -the abrasive concentration (g/L) of the high-concentration abrasive solution input at the abrasive inlet.
Therefore, the invention can completely and uniformly mix the high-concentration abrasive liquid and the high-pressure water column, realize the accurate control of the flow of the high-concentration abrasive liquid, and realize the arbitrary adjustment and the accurate control of the abrasive concentration at the outlet of the nozzle 3 by adjusting the flow of the high-concentration abrasive liquid and the flow of the high-pressure water column.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. An active feed abrasive water jet head apparatus, comprising:
the spraying device comprises a spraying part, wherein the spraying part comprises a high-pressure water inlet connector (1), a mixing cavity (2) and a nozzle (3) which are coaxially arranged and sequentially connected, the high-pressure water inlet connector (1) is detachably connected and communicated with one end of the mixing cavity (2), the other end of the mixing cavity (2) is detachably connected and communicated with the nozzle (3), the inner diameter of one end, close to the mixing cavity (2), of the high-pressure water inlet connector (1) is smaller than that of the nozzle (3), and an abrasive material inlet and an air inlet (10) are formed in the mixing cavity (2);
the feeding part comprises a high-pressure water regulating and controlling component and an abrasive regulating and controlling component, the output end of the high-pressure water regulating and controlling component is communicated with the high-pressure water inlet connector (1), and the abrasive output end is communicated with the abrasive inlet;
two air inlets (10) are symmetrically formed in the mixing cavity (2) relative to the abrasive material inlet; a first connecting pipe (6) extends from the abrasive material inlet to the outer side of the material mixing cavity (2), and a second connecting pipe (7) extends from the two air inlets (10) to the outer side of the material mixing cavity (2); the axial line of the first connecting pipe (6) and the axial line of the second connecting pipe (7) are intersected with the axial line of the high-pressure water inlet connector (1); the free end of the first connecting pipe (6) is arranged towards one side of the high-pressure water pipe in an inclined mode, the axis of the first connecting pipe is 30-40 degrees, the axis of the first connecting pipe is arranged with the axis of the high-pressure water inlet connector (1) in an inclined mode, and the free end of the second connecting pipe (7) is arranged towards one side of the high-pressure water pipe in an inclined mode, the axis of the second connecting pipe is 30-40 degrees, and the axis of the second connecting pipe is arranged with the axis of the high-pressure water inlet connector (1) in an inclined mode.
2. The active feed type abrasive water jet head device according to claim 1, further comprising a high pressure water nozzle (8), wherein the high pressure water nozzle (8) is detachably mounted at one end of the high pressure water inlet joint (1) close to the mixing cavity (2), the high pressure water nozzle (8) is communicated with the mixing cavity (2), the inner diameter of the high pressure water nozzle (8) is smaller than that of the nozzle (3), and the high pressure water nozzle (8) and the nozzle (3) are coaxially arranged.
3. The active feed type abrasive water jet head device as claimed in claim 1, wherein the mixing cavity (2) is provided with a first threaded hole corresponding to the high-pressure water inlet joint (1), the high-pressure water inlet joint (1) is in threaded connection with the mixing cavity (2), the mixing cavity (2) is provided with a second threaded hole corresponding to the nozzle (3), and the nozzle (3) is in threaded connection with the mixing cavity (2).
4. The active feed abrasive waterjet head device according to claim 1, characterized in that it further comprises a clamp (9), said clamp (9) being fitted over said nozzle (3) and clamping said nozzle (3) to said mixing chamber (2).
5. The active feed type abrasive water jet head device according to claim 1, wherein the high pressure water regulating and controlling assembly comprises a plurality of high pressure pipes (41), and a valve (42), an energy accumulator (43), a first pressure gauge (44), a pressure regulating valve (45), a second pressure gauge (46) and a first connecting head (47) which are sequentially communicated through the high pressure pipes (41), wherein the first connecting head (47) is detachably connected with the high pressure water inlet joint (1).
6. The active feed abrasive waterjet head device according to claim 1, characterized in that the abrasive conditioning assembly comprises a plurality of abrasive delivery tubes (51) and a reservoir (52), a delivery pump (53), a flow valve (54) and a second connector which are sequentially connected through the abrasive delivery tubes (51), the second connector being detachably connected to the first connector (6).
7. The active feed type abrasive water jet head device according to claim 6, further comprising a controller (55), a motor (56) and a stirring member (57), wherein the motor (56) is fixed on the liquid storage tank (52), the stirring member (57) is rotatably connected in the liquid storage tank (52), the output end of the motor (56) is in transmission connection with the stirring member (57), and the controller (55) is electrically connected with the motor (56), the delivery pump (53) and the flow valve (54), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210202953.0A CN114473883B (en) | 2022-03-03 | 2022-03-03 | Active feeding type abrasive water jet nozzle device |
Applications Claiming Priority (1)
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| CN115157130A (en) * | 2022-07-15 | 2022-10-11 | 武汉大学 | Steel rail repairing water jet nozzle based on wave oscillation mixing and jet method |
| CN115609492A (en) * | 2022-10-27 | 2023-01-17 | 山东大学 | Air-abrasive-water composite submerged jet nozzle, system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200829340A (en) * | 2007-01-10 | 2008-07-16 | Awin Diamond Technology Corp | Ultra-high pressure fluid jet structure in cutting for preventing water-sand backflow |
| CN202114638U (en) * | 2011-05-22 | 2012-01-18 | 李志雄 | Combined type high pressure water abrasive jet |
| CN202862014U (en) * | 2012-10-23 | 2013-04-10 | 谭建忠 | High-pressure water dry-abrasive jet-flow spraying head |
| CN107511768A (en) * | 2017-08-24 | 2017-12-26 | 中国矿业大学 | A kind of malleation is fed abrasive jet system |
| CN113021193A (en) * | 2021-03-18 | 2021-06-25 | 动力博石(广东)智能装备有限公司 | System for cutting printed circuit board by adopting post-mixing type abrasive high-pressure water jet |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110086579A1 (en) * | 2009-10-13 | 2011-04-14 | Daniel Gelbart | Waterjet cutting systems, including waterjet cutting systems having light alignment devices, and associated methods |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200829340A (en) * | 2007-01-10 | 2008-07-16 | Awin Diamond Technology Corp | Ultra-high pressure fluid jet structure in cutting for preventing water-sand backflow |
| CN202114638U (en) * | 2011-05-22 | 2012-01-18 | 李志雄 | Combined type high pressure water abrasive jet |
| CN202862014U (en) * | 2012-10-23 | 2013-04-10 | 谭建忠 | High-pressure water dry-abrasive jet-flow spraying head |
| CN107511768A (en) * | 2017-08-24 | 2017-12-26 | 中国矿业大学 | A kind of malleation is fed abrasive jet system |
| CN113021193A (en) * | 2021-03-18 | 2021-06-25 | 动力博石(广东)智能装备有限公司 | System for cutting printed circuit board by adopting post-mixing type abrasive high-pressure water jet |
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