CN115091375B - A hybrid anti-blocking feeding nozzle for jet-enhanced grinding - Google Patents
A hybrid anti-blocking feeding nozzle for jet-enhanced grinding Download PDFInfo
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- CN115091375B CN115091375B CN202210824781.0A CN202210824781A CN115091375B CN 115091375 B CN115091375 B CN 115091375B CN 202210824781 A CN202210824781 A CN 202210824781A CN 115091375 B CN115091375 B CN 115091375B
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- 238000000227 grinding Methods 0.000 title claims abstract description 53
- 238000002156 mixing Methods 0.000 claims abstract description 91
- 230000033001 locomotion Effects 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims description 31
- 239000000843 powder Substances 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 10
- 238000007599 discharging Methods 0.000 description 8
- 238000005507 spraying Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000008602 contraction Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001739 rebound effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
-
- 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
Abstract
本发明涉及送料喷头技术领域，尤其是涉及一种用于射流强化研磨的混合防堵送料喷头，包括依次连接的进气管、混合主管、混合副管和出料管，所述混合主管内部设有主混合腔，在所述混合主管外侧周向均布设有轴线共面的四个切向进料口，并与所述主混合腔底部相通，所述混合副管内设有混合防堵结构，所述混合防堵结构包括摆动主体和固定部件，所述摆动主体包括固定杆和主转子，所述主转子套设在所述固定杆上并与固定杆活动连接，所述主转子外侧设有与轴线夹角为60°的拨片，所述固定部件设在所述摆动部件的下方，所述固定杆的下端为球形，所述固定杆下端活动卡接在所述固定部件上并能完成锥摆运动；所述混合副管外侧设有沿轴线对称分布的两个进料口。
The invention relates to the technical field of feeding nozzles, and in particular to a mixing and anti-blocking feeding nozzle for jet-enhanced grinding, which includes an air inlet pipe, a mixing main pipe, a mixing auxiliary pipe and a discharge pipe connected in sequence. The mixing main pipe is internally provided with The main mixing chamber has four tangential feed inlets with coplanar axes evenly distributed around the outside of the mixing main pipe, and is connected to the bottom of the main mixing chamber. A mixing anti-blocking structure is provided in the mixing auxiliary pipe. The anti-blocking structure includes a swing body and a fixed component. The swing body includes a fixed rod and a main rotor. The main rotor is sleeved on the fixed rod and movably connected with the fixed rod. There is an axis clamp on the outside of the main rotor. A pick with an angle of 60°. The fixed part is located below the swing part. The lower end of the fixed rod is spherical. The lower end of the fixed rod is movable and clamped on the fixed part and can complete the conical pendulum motion. ; There are two feed inlets symmetrically distributed along the axis on the outside of the mixing auxiliary pipe.
Description
Technical Field
The invention relates to the technical field of feeding spray heads, in particular to a mixed anti-blocking feeding spray head for jet reinforced grinding.
Background
The jet reinforced grinding technology is that the grinding jet material comprising reinforced steel shot, grinding powder and grinding liquid is used to impact the surface of workpiece to be machined in high speed and with high probability to reach the micro cutting and reinforced surface effect. Residual compressive stress is generated on the surface of the processed workpiece, a reinforcing layer is formed, the strength and the service life of the workpiece are greatly improved, and the surface roughness is reduced.
In the jet reinforced grinding process, one of the key points is that the grinding spray can uniformly cover the surface to be processed. When a common spray head is used for actual processing, pre-mixing type feeding (feeding after spraying and mixing) is generally adopted, but the problems that (1) feeding air pressure is lost due to bending of a feeding pipeline (2) the grinding and spraying materials after mixing are influenced by pipe walls for a long time in the transmission process, and the mixing is uneven due to viscous resistance between the flowing layers can be caused. These problems result in the inability of jet enhanced abrasive machining to more uniformly cover the surface of the workpiece to be machined and in the presence of material perforation. In order to improve the processing effect, the angle of the spray head is often adjusted, and then the processing is repeated or the feeding air pressure is increased, but the problems of low processing efficiency, increased energy consumption and the like are accompanied; on the other hand, in the transmission process, the grinding spray material is too viscous due to the fact that a large number of steel balls are gathered together or a part of areas are too viscous, and the bonding occurs when the spray head is contracted to cause blocking, so that the stable reliability of long-time processing is reduced, and the difficulty of cleaning the spray head is increased.
Therefore, a sprayer with anti-blocking function, high mixing performance and convenient disassembly and cleaning is needed for strengthening the grinding process.
Disclosure of Invention
The invention aims to provide a mixed anti-blocking feeding nozzle for jet reinforced grinding, which can solve the problems of insufficient grinding and jetting mixing and pressure loss of jetting conveying in the nozzle.
The invention provides a mixed anti-blocking feeding nozzle for jet reinforced grinding, which comprises an air inlet pipe, a mixed main pipe, a mixed auxiliary pipe and a discharging pipe which are sequentially connected, wherein a main mixing cavity is arranged in the mixed main pipe, four tangential feed inlets with coplanar axes are uniformly distributed on the periphery of the outer side of the mixed main pipe and are communicated with the bottom of the main mixing cavity, and the tangential feed inlets are used for introducing grinding powder and grinding liquid; the mixing auxiliary pipe is internally provided with a mixing anti-blocking structure, the mixing anti-blocking structure comprises a swinging main body and a fixing part, the swinging main body comprises a fixing rod and a main rotor, the main rotor is sleeved on the fixing rod and is movably connected with the fixing rod, a plectrum with an included angle of 60 degrees with an axis is arranged on the outer side of the main rotor, the fixing part is arranged below the swinging part, the lower end of the fixing rod is spherical, and the lower end of the fixing rod is movably clamped on the fixing part and can finish cone swing movement; two feed inlets symmetrically distributed along the axis are arranged on the outer side of the mixing auxiliary pipe and lead to the mixing anti-blocking structural area.
Preferably, a secondary rotor is further sleeved on the fixing rod below the main rotor, the secondary rotor is movably connected with the fixing rod, and a shifting piece with opposite direction and equal angle to those of the shifting piece of the main rotor is arranged outside the secondary rotor.
Preferably, the number of the main rotor paddles is greater than the number of the auxiliary rotor paddles.
Preferably, an inner runner is arranged in the auxiliary rotor, a hole for communicating the inner runner is arranged between the auxiliary rotor shifting sheets, and a runner communicated with the inner runner of the auxiliary rotor is arranged in the main rotor.
Preferably, the four tangential feed inlets are alternately connected with a grinding powder tank, a grinding liquid cylinder, a grinding powder tank and a grinding liquid cylinder.
Preferably, two feeding ports which are symmetrically distributed along the axis and have an included angle of 80 degrees with the axis are arranged on the outer side of the mixing auxiliary pipe and are communicated with a region between the main rotor plectrum and the auxiliary rotor plectrum in the mixing anti-blocking structure, and the feeding ports are used for being communicated with reinforced steel shots.
Preferably, the fixed part comprises a fixed bottom plate and two fixed auxiliary plates, the fixed bottom plate is a circular plate with a hollowed middle part, crossed spokes are arranged between the circular plates, the joint parts of the spokes are provided with ball grooves matched with the spherical lower ends of the fixed rods, the lower ends of the fixed rods are clamped inside the ball grooves, the fixed auxiliary plates are oppositely arranged and can be spliced into a circular hollowed-out plate structure, spokes which can be spliced into circular holes are arranged inside the fixed auxiliary plates, the diameters of the circular holes are smaller than those of the ball grooves, and the circular holes are used for preventing the lower ends of the fixed rods from escaping from the ball grooves.
Preferably, the upper end of dead lever is equipped with the external screw thread, be equipped with special-shaped hole and in the special-shaped hole joint in the middle of the vice rotor and establish vice rotary drum in the dead lever outside, vice rotary drum outside cover in proper order be equipped with the sleeve and with main rotor complex main rotary drum, main rotary drum upper end is equipped with the end cover, the end cover pass through the nut with the sleeve is fixed, and restriction main rotor is in axial displacement on the dead lever.
Preferably, the main rotor and the auxiliary rotor are made of TPX plastic.
Preferably, the discharging pipe is internally provided with a spraying channel with an expansion angle of 20 degrees, and the outside of the discharging pipe is connected with a fixing part of the mixed anti-blocking structure through a screw and is fixedly connected with the mixed auxiliary pipe.
The beneficial effects are that:
1. the four tangential feed inlets of the main mixing pipe are alternately connected with the grinding powder tank, the grinding liquid cylinder, the grinding powder tank and the grinding liquid cylinder, and by the arrangement, when the main mixing cavity forms negative pressure to suck powder liquid, spiral flow is generated, so that the powder liquid mixing effect is enhanced; and powder or liquid sucked by each feed inlet can collide with powder or liquid sucked by the next feed inlet, so that opposite flushing is realized, and the mixing effect is improved.
2. The swinging part of the mixing anti-blocking structure not only can perform self-adaptive conical swinging movement around the fixed part under the pushing of the powder-liquid mixture of the main mixing pipe; and the main rotor and the auxiliary rotor can realize coaxial reversion under the pushing of the spraying material due to the opposite direction of the poking piece. The rotation of the main poking piece can cut the powder-liquid mixture to increase the specific surface area of the mixture, so that the contact range of the powder-liquid mixture and the reinforced steel shots sucked from the feed inlet of the mixing auxiliary pipe is favorably improved, and the mixing effect is enhanced.
3. When the reinforced steel shots sucked from the feeding hole of the mixing auxiliary pipe enter the area between the stirring sheets of the main rotor and the auxiliary rotor, the powder-liquid mixture entering from the discharging hole of the main mixing pipe and the powder-liquid mixture in the inner cavity of the auxiliary rotor are subjected to convergent opposite flushing in three directions, so that the combination speed and pressure in the contraction section are realized, and the mixing effect is enhanced. And after entering the mixing auxiliary pipe, the steel balls can strike the poking plate on the auxiliary rotor to realize rebound acceleration.
4. The swinging part of the mixing anti-blocking structure can perform self-adaptive cone swing movement under the pushing of the powder-liquid mixture of the main mixing pipe according to the aggregation degree of the mixture at different positions under the pushing of the spraying material; when the main rotor rotates, torque is generated, the auxiliary rotor and the auxiliary rotor are used for reversing, so that part of torque is counteracted, the grinding spray material is guided to advance, and meanwhile, the main rotor and the auxiliary rotor rotate to drive the mixture adhered on the wall, so that blockage is effectively prevented.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic three-dimensional structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention taken along the general axis;
FIG. 3 is an enlarged schematic view of the swing body (at A) of the hybrid anti-blocking structure according to the present invention;
FIG. 4 is an enlarged view of the direction of the discharge port (at B) according to the present invention;
FIG. 5 is an enlarged schematic illustration of the three-channel hedging (at C) occurring within a mixing sub-tube in accordance with the present invention;
FIG. 6 is an exploded view of a swing body of the hybrid anti-blocking structure of the present invention;
FIG. 7 is a schematic diagram of a hybrid anti-blocking structure according to the present invention;
FIG. 8 is a schematic diagram of a hybrid main pipe structure according to the present invention;
FIG. 9 is a schematic view of a main rotor structure according to the present invention;
fig. 10 is a schematic view of the structure of the auxiliary rotor in the present invention.
Reference numerals illustrate: 1-air inlet pipe, 2-mixing main pipe, 201-tangential feed inlet, 3-mixing auxiliary pipe, 301-feed inlet, 4-discharge pipe, 5, 7-fixed auxiliary plate, 6-fixed bottom plate, 8-fixed rod, 9-auxiliary rotor, 901-auxiliary rotor plectrum, 10-main rotor, 1001-main rotor plectrum, 11-auxiliary rotary drum, 12-nut, 13-end cover, 14-main rotary drum, 15-sleeve, 16-ball groove, 17-spoke.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
As shown in fig. 1-10, the invention provides a mixed anti-blocking feeding nozzle for jet reinforced grinding. Comprises an air inlet pipe 1, a main mixing pipe 2, an auxiliary mixing pipe 3, a discharging pipe 4 and a mixing anti-blocking structure. The main mixing pipe 2 is formed by casting, and a main mixing cavity is formed inside; four tangential feed inlets 201 with coplanar axes are uniformly distributed on the outer circumference and are communicated with the bottom of the main mixing cavity; a discharging channel with an expansion angle of 4 degrees is arranged on one discharging side. Internal threads are machined at the end parts of the two sides in the axial direction. An expansion-contraction flow passage is processed in the air inlet pipe 1 along the flow direction of high-pressure air, wherein the contraction angle is 10-15 degrees, and the expansion angle is 13-15 degrees. Two feed inlets 301 which have an included angle of 80 degrees with the axis and are symmetrically distributed along the axis are arranged on the outer side of the mixing auxiliary pipe 3 and lead to a region between the main rotor plectrum 1001 and the auxiliary rotor plectrum 901 in the mixing anti-blocking structure, so that the effect of three-channel opposite-impact mixing is realized; the interior along the direction of the flow of the spray material is provided with a flow passage with a contraction angle of 20 degrees. The mixed anti-blocking structure consists of a swinging main body and a fixed part; the swinging main body mainly comprises a fixed rod 8, an auxiliary rotor 9 and a main rotor 10; the end of the fixed rod 8 is processed into a ball shape, a boss used for axially fixing the auxiliary rotor 9 is axially arranged on the fixed rod, and an external thread is processed on the other end of the fixed rod; the outside of the auxiliary rotor 9 is provided with a plurality of plectrums which form an included angle of 60 degrees with the axis, in order to facilitate processing, the shape of the plectrum can be any shape which is easy to process, and the edge of the plectrum has a certain cutting effect on fluid and a certain rebound effect on the surface of the plectrum. An inner runner is processed in the auxiliary rotor 9, and holes for communicating the inner runner are processed between the auxiliary rotor pulling sheets 901; the middle of the auxiliary rotor 9 is provided with a special-shaped hole which is connected with the auxiliary rotary cylinder 11. The outer side of the auxiliary rotary drum 11 is sequentially sleeved with a sleeve 15 and a main rotary drum 14 matched with the main rotor 10. The outside of the main rotor 10 is provided with a poking plate with opposite directions and equal angles with the poking plate of the auxiliary rotor 9; in number, the number of the main rotor 10 is more than that of the auxiliary rotor 9; the main rotor 10 is internally provided with a runner communicated with the runner in the auxiliary rotor 9. Through the structure, the main rotor 10 and the auxiliary rotor 9 realize coaxial reverse rotation under the pushing of the spraying material. The end cap 13 is fixed to the sleeve 15 by the nut 12 and limits the axial displacement of the main rotor 10 on the fixed rod 8. The fixed part mainly comprises fixed bottom plate 6 and two fixed subplates 5, 7, and fixed bottom plate 6 is the plectane of middle part fretwork, is equipped with crisscross spoke 17 between the plectane, and the joint position of spoke 17 is equipped with the ball groove 16 that matches with the spherical lower extreme of dead lever 8, and dead lever 8 lower extreme joint is inside ball groove 16, and fixed subplate (5, 7) are the structure that can splice into circular fretwork board for relative setting, and fixed subplate inside is equipped with the spoke that can splice into the round hole, and the diameter of round hole is less than the diameter of ball groove, and the round hole is used for preventing the lower extreme of dead lever 8 to escape in ball groove 16.
The main rotor 10 and the auxiliary rotor 9 are made of wear-resistant materials with low density, such as TPX plastic molding, so that the plectrum has longer service life. The discharge pipe 4 is internally provided with a spraying channel with an expansion angle of 20 degrees, and the outside is connected with the fixed bottom plate 6 and the fixed auxiliary plates 5 and 7 through screws and is fixedly connected with the mixing auxiliary pipe 3.
The working process comprises the following steps: one end of the air inlet pipe 1 is filled with high-pressure air, and after the air is accelerated by the contraction-expansion channel, the air flows out from one end of the mixed main pipe 2; the process is to make the inner cavity of the main mixing pipe 2 form negative pressure, and four tangential feed inlets 201 connected with the bottom of the inner cavity of the main mixing pipe 2 are alternately connected with the grinding powder tank, the grinding liquid tank, the grinding powder tank and the grinding liquid tank, and by the arrangement, when the inner cavity forms negative pressure to suck powder liquid, spiral flow is generated, and the powder or liquid sucked by each tangential feed inlet collides with the powder or liquid sucked by the next tangential feed inlet, so that opposite flushing is realized. After the grinding fluid and the grinding powder are fully mixed in the main mixing pipe cavity, the grinding fluid and the grinding powder enter the auxiliary mixing pipe 3 along with the driving of high-pressure gas, as the materials and the high-pressure gas flow, the reinforced steel shots are sucked from the feeding ports 301 on the two sides of the auxiliary mixing pipe 3, the materials and the gas flow simultaneously push the main rotor 10 and the auxiliary rotor 9 to rotate, a part of the flow path of the once mixed powder-liquid mixture is the flow between the main rotor 10 and the inner wall of the auxiliary mixing pipe 3, a part of the flow path is the small hole communicated with the inner flow channel of the main rotor 10, the inner flow channel of the auxiliary rotor 9 and the inner flow channel of the auxiliary rotor 9, and the mixed powder-liquid mixture and the fed reinforced steel shots realize the collecting opposite impact in three directions as shown in fig. 5, and the grinding spray material required by processing is formed after the mixing and flows out from the discharging pipe 4.
Specifically, a hybrid anti-blocking structure;
the mixed anti-blocking structure consists of a swinging main body and a fixed part; the fixing part consists of a fixing bottom plate 6 and fixing auxiliary plates 5 and 7, the center of the fixing part is a ball groove capable of fixing a fixing rod 8, and under the action of high-pressure gas introduced from the air inlet pipe 1 and the powder-liquid mixture mixed by the mixing main pipe 2, the fixing rod 8 can perform self-adaptive conical swing movement, and a main rotor 10 and an auxiliary rotor 9 on the fixing rod can perform coaxial reverse movement.
Specifically, the fixed rod 8 performs self-adaptive conical pendulum motion and rotary motion of the main rotor 10 and the auxiliary rotor 9;
the material is conveyed by the pipe wall, viscous resistance can be generated, the speeds of different flow layers are inconsistent, and the grinding spraying material has a certain possibility of bonding the pipe wall, so that the condition that the middle speed is higher and the fluid near the pipe wall is slower can be shown in the conveying process in the circular pipe, and the blocking phenomenon can be caused; therefore, the materials adhered to the pipe wall fall off by utilizing the conical pendulum motion and the rotation of the main rotor 10 and the auxiliary rotor 9, and the conical pendulum motion is determined according to the flowing condition of the fluid, so that the uniform transmission is realized, and the blocking prevention effect is realized.
Specifically, the main rotor 10 and the sub rotor 9 are coaxially reversed;
by utilizing the difference of the direction of the poking sheets of the main rotor 10 and the auxiliary rotor 9, the coaxial different rotation is realized under the pushing of the mixture of high-pressure gas and powder liquid. Because the main rotor 10 rotates to bring torque and the fixing plate 8 inclines to one side, the auxiliary rotor 9 is added to offset a part of torque, the phenomenon of fluid vortex at the edge of the plectrum of the main rotor 10 can be improved, the feeding speed is increased, and the influence caused by insufficient air pressure is reduced.
Specifically, the main rotor 10 and the sub rotor 9 are dial plates
The powder-liquid mixture is cut by the edge of the stirring sheet of the main rotor 10, so that the specific surface area of the mixture is increased, the contact range of the powder-liquid mixture and the reinforced steel shot sucked from the feed inlet of the mixing auxiliary pipe 3 is favorably improved, and the powder particles adhered to the pipe wall can be scraped by combining the self-adaptive conical pendulum movement stirring sheet of the fixed rod 8. The reinforced steel shots entering from the mixing auxiliary pipe 3 are rebounded by the plectrum surface of the auxiliary rotor, so that the steel shots are accelerated. Number of paddles of the main rotor 10 and the sub rotor 9: the number of the poking sheets of the main rotor 10 is more than that of the auxiliary rotor 9 so as to prevent the reinforced steel shots from moving in the opposite direction of the discharge.
Specifically, three flow channels in the auxiliary mixing pipe 3 are opposite;
and a part of powder-liquid mixing flow paths are the inner flow passage of the main rotor 10, the inner flow passage of the auxiliary rotor 9 and the communicating small holes of the inner flow passage of the auxiliary rotor 9, and the powder-liquid mixing flow paths and the entering reinforced steel shots are subjected to convergent opposite impact in three directions on the contraction section, as shown in figure 5. And the mixing effect is enhanced by utilizing acceleration and opposite impact of the contraction section.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210824781.0A CN115091375B (en) | 2022-07-13 | 2022-07-13 | A hybrid anti-blocking feeding nozzle for jet-enhanced grinding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210824781.0A CN115091375B (en) | 2022-07-13 | 2022-07-13 | A hybrid anti-blocking feeding nozzle for jet-enhanced grinding |
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| CN115091375A CN115091375A (en) | 2022-09-23 |
| CN115091375B true CN115091375B (en) | 2023-11-07 |
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| CN117984237B (en) * | 2024-04-07 | 2024-06-07 | 成都裕鸢航空智能制造股份有限公司 | Sand blasting structure, sand blasting equipment and sand blasting method for metal pipe fitting |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7934977B2 (en) * | 2007-03-09 | 2011-05-03 | Flow International Corporation | Fluid system and method for thin kerf cutting and in-situ recycling |
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| 刘晓初 ; 姬武勋 ; 张健文 ; 温溢恒 ; 何铨鹏 ; 陈凡 ; .强化研磨中喷头的优化设计.机床与液压.2016,(第17期),全文. * |
| 虞加祥,戈和建.射喷机的防粘料转子.煤炭科学技术.1989,(第02期),全文. * |
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