CN114682409A - Spraying assembly for engineering machinery - Google Patents
Spraying assembly for engineering machinery Download PDFInfo
- Publication number
- CN114682409A CN114682409A CN202210357460.4A CN202210357460A CN114682409A CN 114682409 A CN114682409 A CN 114682409A CN 202210357460 A CN202210357460 A CN 202210357460A CN 114682409 A CN114682409 A CN 114682409A
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- CN
- China
- Prior art keywords
- spray head
- passage
- valve rod
- mixing
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005507 spraying Methods 0.000 title claims abstract description 37
- 239000007921 spray Substances 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 239000003973 paint Substances 0.000 claims abstract description 15
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 13
- 238000009792 diffusion process Methods 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims 3
- 239000013556 antirust agent Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
Landscapes
- Nozzles (AREA)
Abstract
The invention discloses a spraying assembly for engineering machinery, which comprises a liquid source, a compressed air source and a spray head, wherein the liquid source and the compressed air source are connected with the spray head through connecting pipelines, the spray head comprises a spray head seat (1), an intermediate body (2) and a spray head body (3), one end of the intermediate body is connected with the spray head seat, the other end of the intermediate body is connected with the spray head body, the spray head seat is provided with a valve core assembly, a liquid channel (7), a first annular channel (8) and a gas channel (9), the intermediate body is provided with a second annular channel (18) and a conical cavity (19), one end of the valve core assembly is connected in the conical cavity, and the gas channel is communicated with the second annular channel through the first annular channel, and the spraying assembly is characterized in that: the spray head body is provided with a mixing cavity (21), and the inner peripheral wall of the mixing cavity is provided with a mixed flow plate group (25). The paint spraying assembly for the engineering machinery can improve the surface spraying quality of the engineering machinery, and has the advantages of small atomized droplets, uniform spraying and good appearance quality.
Description
Technical Field
The invention relates to the technical field of spraying devices of engineering machinery, in particular to a paint spraying assembly for the engineering machinery, which can be used for surface spraying (such as paint spraying, antirust agents and the like) of the engineering machinery such as an excavator, a bulldozer and the like.
Background
The engineering machinery usually sprays surface coatings such as paint, antirust agent and the like according to the surface spraying requirement. However, the existing paint spraying assembly for engineering machinery has the problems of large atomized liquid drop, uneven spraying thickness and poor appearance quality.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a paint spraying assembly for engineering machinery, which can improve the surface spraying quality of the engineering machinery, and has the advantages of small atomized droplets, uniform spraying and good appearance quality.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a subassembly that sprays paint for engineering machine tool, it includes the liquid source, compressed air source, the shower nozzle, the liquid source, compressed air source passes through connecting line and is connected with the shower nozzle, the shower nozzle includes shower nozzle seat (1), midbody (2), shower nozzle body (3), midbody one end is connected with the shower nozzle seat, the other end is connected with the shower nozzle body, be provided with the case subassembly on the shower nozzle seat, liquid passage (7), first annular channel (8), gas passage (9), be provided with second annular channel (18) on the midbody, toper chamber (19), the one end of case subassembly is connected in the toper intracavity, gas passage communicates through first annular channel and second annular channel, a serial communication port: the spray head body is provided with a mixing cavity (21), and the inner peripheral wall of the mixing cavity is provided with a mixed flow plate group (25).
Further, be provided with valve rod (5), valve pocket (6), liquid channel (7), first annular channel (8), gas passage (9), interface channel 910, valve rod seat (11), guide ring body (12), uide bushing (13), spring (14), valve head (15), sealing ring (16) on the nozzle base, the case subassembly includes the valve rod, the valve rod seat, the guide ring body, the uide bushing, a spring, the valve head, the one end periphery of valve rod is provided with the guide ring body, the other end periphery of valve rod is provided with the uide bushing, the uide bushing is located the valve rod seat, the one end of spring is connected in the guide ring body, the other end is connected in the uide bushing, the right side of the uide bushing on the valve rod is provided with the valve head, the valve head has the toper portion, toper portion and the inner wall cooperation in toper chamber, be provided with sealing groove on the toper portion, be provided with the sealing ring in the sealing groove.
Furthermore, the liquid channel and the gas channel are arranged vertically to the valve rod, the liquid channel is communicated with the conical cavity through the first annular channel, the periphery of the conical cavity is provided with a connecting annular channel, the connecting annular channel is communicated with the second annular channel through the connecting annular channel, and the connecting annular channel and the second annular channel are coaxial; the inner periphery of the first annular channel forms a sleeve structure, a spring is arranged in the sleeve structure, one end of the sleeve structure forms a step part, and a valve rod seat is arranged in the step part.
Furthermore, a circular table portion (20) is arranged at one end, close to the spray head body, of the intermediate body, a liquid spraying hole is formed in the circular table portion, and the circular table portion extends into the mixing cavity for a certain distance.
Further, the distance L between one end surface of the circular table part (20) close to the spray head body and the mixed flow plate group (25) adjacent to the circular table part is 0.08-0.20 times of the diameter D of the mixing cavity (21); and a gas injection channel is formed between the outer periphery of the circular table part and the inner periphery of one end of the spray head body and is communicated with the second annular channel through a diffusion cavity.
Furthermore, the inner peripheral wall of the mixing cavity (21) is provided with a mixed flow plate group (25), one end of the mixing cavity is provided with a first outlet hole (22) and a second outlet hole (24), the mixing cavity is communicated with the diffusion hole (23) through the first outlet hole, and the plurality of second outlet holes are obliquely arranged relative to the axis of the mixing cavity.
Furthermore, the flow mixing plate group (25) comprises a plurality of groups of flow mixing plates which are arranged along the axial direction of the mixing cavity, and the inner diameter of each flow mixing plate is larger than the diameter of the liquid injection hole of the circular table part.
Further, each group of mixed flow pieces comprises a plurality of mixed flow segments (27), the mixed flow segments are uniformly distributed along the circumferential direction, and the mixed flow segments of the mixed flow pieces in the plurality of groups are staggered in the circumferential direction in an overlapping manner when viewed from the axial direction.
Furthermore, a conical arc-shaped boss part (26) is formed on the periphery of the first outlet hole, the conical arc-shaped boss part extends into the mixing cavity, and the plurality of second outlet holes are communicated to the arc part of the conical arc-shaped boss part.
The spraying device for the engineering machinery can improve the surface spraying quality of the engineering machinery, has small atomized droplets and uniform spraying, and improves the drying effect.
Drawings
FIG. 1 is a block diagram of the paint spraying assembly of the present invention;
FIG. 2 is a structural view of a mixing blade of the present invention.
In the figure: the nozzle base 1, the intermediate body 2, the nozzle body 3, the connecting sleeve/connecting nut 4, the valve rod 5, the valve cavity 6, the liquid channel 7, the first annular channel 8, the (compressed) gas channel 9, the connecting channel 10, the valve rod base 11, the guide ring body 12, the guide sleeve 13, the spring 14, the valve head 15, the sealing ring 16, the connecting flange 17, the second annular channel 18, the conical cavity 19, the circular table part 20, the mixing cavity 21, the first outlet hole 22, the diffusion hole 23, the second outlet hole 24, the mixed flow plate group 25, the conical arc-shaped convex table part 26 and the mixed flow segment 27.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-2, a paint spraying assembly for an engineering machine includes a liquid source, a compressed air source, and a spray head, where the liquid source and the compressed air source are connected to the spray head through a connection pipeline, the spray head includes a spray head base 1, a middle body 2, and a spray head body 3, one end of the middle body 2 is connected to the spray head base 1, and the other end is connected to the spray head body 3, the spray head base 1 is provided with a valve core assembly, a liquid channel 7, a first annular channel 8, and a gas channel 9, the middle body 2 is provided with a second annular channel 18 and a conical cavity 19, one end of the valve core assembly is connected to the conical cavity 19, the gas channel 9 is communicated with the second annular channel 18 through the first annular channel 8, the spray head body 3 is provided with a mixing cavity 21, and an inner peripheral wall of the mixing cavity 21 is provided with a mixed flow group 25.
The nozzle seat 1 is provided with a valve rod 5, a valve cavity 6, a liquid channel 7, a first annular channel 8, a gas channel 9, a connecting channel 10, a valve rod seat 11, a guide ring body 12, a guide sleeve 13, a spring 14, a valve head 15 and a sealing ring 16, the valve core assembly comprises the valve rod 5, the valve rod seat 11, the guide ring body 12, the guide sleeve 13, the spring 14 and the valve head 15, the periphery of one end of the valve rod 5 is provided with the guide ring body 12, the periphery of the other end of the valve rod 5 is provided with the guide sleeve 13, the guide sleeve 13 is made of wear-resistant non-metallic materials, the guide sleeve 13 is positioned in the valve rod seat 11, one end of the spring 14 is connected with the guide ring body 12, the other end is connected with the guide sleeve 13, the right side of the guide sleeve 13 on the valve rod 5 is provided with the valve head 15, the valve head 15 is provided with a conical part matched with the inner wall of the conical cavity 19, the conical part is provided with a sealing groove, and the sealing ring 16 is arranged in the sealing groove, the valve core assembly is used to control the supply of paint/liquid.
The liquid channel 7 and the gas channel 9 are arranged vertically to the valve rod 5, the liquid channel 7 is communicated with the conical cavity 19 through the first annular channel 8, the periphery of the conical cavity 19 is provided with a connecting annular channel, the connecting channel 10 is communicated with the second annular channel 18 through the connecting annular channel, and the connecting annular channel and the second annular channel 18 are coaxial; the inner periphery of the first annular channel 8 forms a sleeve structure, a spring 14 is arranged in the sleeve structure, one end of the sleeve structure forms a step part, and a valve rod seat 11 is arranged in the step part.
One end of the intermediate body 2 is connected with the spray head seat 1 through a connecting flange 17, and the other end is connected with the spray head body 3 through a connecting sleeve/connecting nut 4.
The end of the intermediate body 2 close to the nozzle body 3 is provided with a circular table portion 20, the circular table portion 20 is provided with a liquid injection hole therein, the circular table portion 20 extends into the mixing chamber 21 for a certain distance (a small distance), preferably, the distance L between the end surface of the circular table portion 20 close to the nozzle body 3 and the mixing flow piece 25 adjacent to the circular table portion 20 is 0.08-0.20 times, preferably 0.12-0.15 times the diameter D of the mixing chamber 21. A gas injection passage is formed between the outer periphery of the circular table portion 20 and the inner periphery of one end of the showerhead body 3, and the gas injection passage communicates with the second annular passage 18 through a diffusion chamber.
The spray head body 3 is internally provided with a mixing cavity 21, the inner peripheral wall of the mixing cavity 21 is provided with a mixing sheet 25, one end of the mixing cavity 21 is provided with a first outlet hole 22 and a second outlet hole 24, the mixing cavity 21 is communicated with a diffusion hole 23 through the first outlet hole 22, the mixing cavity 21, the first outlet hole 22 and the diffusion hole 23 share the same axis, and the second outlet holes 24 are obliquely arranged relative to the axis of the mixing cavity 21.
Further, the flow mixing plate group 25 includes a plurality of sets of flow mixing plates arranged in the axial direction of the mixing chamber 21, and the inner diameter of the flow mixing plates is larger than the diameter of the liquid ejection hole of the circular table portion 20. As shown in fig. 2, each group of mixing flow segments includes a plurality of mixing flow segments 27, the plurality of mixing flow segments 27 are uniformly distributed along the circumferential direction, and the plurality of mixing flow segments 27 of the plurality of groups of mixing flow segments are staggered in the circumferential direction with an overlap degree of 30-60% as viewed from the axial direction. The mixed flow sheet group 25 is matched with the structure of the circular table part 20, so that the quality of the surface spraying (such as paint spraying, antirust agent and the like) of the engineering machinery can be effectively improved, and the mixed flow sheet group has small atomized droplets, uniform spraying and good appearance quality.
Further, a conical arc-shaped boss portion 26 is formed on the periphery of the first outlet hole 22, the conical arc-shaped boss portion 26 extends into the mixing chamber 21, the plurality of second outlet holes 24 are communicated to the arc-shaped surface/portion of the conical arc-shaped boss portion 26, and the conical arc-shaped boss portion 26 can further improve the spraying and atomizing effect of the second outlet holes 24, so that atomized droplets are small and spraying is uniform.
The paint spraying assembly for the engineering machinery is mainly used for surface spraying of the engineering machinery such as an excavator, a bulldozer and the like so as to improve the quality of the surface spraying (such as paint spraying, an antirust agent and the like) of the engineering machinery, and has the advantages of small atomized droplets, uniform spraying and good appearance quality.
The paint spraying assembly for the engineering machinery can improve the surface spraying quality of the engineering machinery, and is small in atomized droplets, uniform in spraying and good in appearance quality.
The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (9)
1. The utility model provides a spray assembly for engineering machine tool, it includes the liquid source, compressed air source, the shower nozzle, the liquid source, compressed air source passes through connecting line and is connected with the shower nozzle, the shower nozzle includes shower nozzle seat (1), midbody (2), shower nozzle body (3), midbody one end is connected with the shower nozzle seat, the other end is connected with the shower nozzle body, be provided with the case subassembly on the shower nozzle seat, liquid passage (7), first annular channel (8), gas passage (9), be provided with second annular channel (18) on the midbody, conical cavity (19), the one end of case subassembly is connected in the conical cavity, gas passage communicates through first annular channel and second annular channel, its characterized in that: the nozzle body is provided with a mixing cavity (21), and the inner peripheral wall of the mixing cavity is provided with a mixed flow plate group (25).
2. The spray assembly for engineering machinery according to claim 1, wherein the spray head seat is provided with a valve rod (5), a valve cavity (6), a liquid passage (7), a first annular passage (8), a gas passage (9), a connecting passage 910, a valve rod seat (11), a guide ring body (12), a guide sleeve (13), a spring (14), a valve head (15) and a sealing ring (16), the valve core assembly comprises a valve rod, a valve rod seat, a guide ring body, a guide sleeve, a spring and a valve head, the periphery of one end of the valve rod is provided with the guide ring body, the periphery of the other end of the valve rod is provided with the guide sleeve, the guide sleeve is located in the valve rod seat, one end of the spring is connected to the guide ring body, the other end of the spring is connected to the guide sleeve, the right side of the guide sleeve on the valve rod is provided with the valve head, the valve head has a tapered portion, the tapered portion is matched with the inner wall of the tapered cavity, and the tapered portion is provided with a sealing groove, and a sealing ring is arranged in the sealing groove.
3. The spray assembly for the engineering machinery, as recited in claim 2, wherein the liquid passage and the gas passage are arranged vertically to the valve stem, the liquid passage communicates with the conical cavity through a first annular passage, a connecting annular passage is arranged at the periphery of the conical cavity, the connecting passage communicates with a second annular passage through the connecting annular passage, and the connecting annular passage and the second annular passage are coaxial; the inner periphery of the first annular channel forms a sleeve structure, a spring is arranged in the sleeve structure, one end of the sleeve structure forms a step part, and a valve rod seat is arranged in the step part.
4. A spray assembly for a construction machine according to claim 3 wherein the intermediate body is provided with a circular table portion (20) at an end thereof adjacent the spray head body, the circular table portion being provided with the liquid spray orifice and extending a distance into the mixing chamber.
5. A spray assembly for a working machine according to claim 4, characterized in that the distance L between an end face of the circular table portion (20) close to the spray head body and the flow mixing plate group (25) adjacent to the circular table portion is 0.08-0.20 times the diameter D of the mixing chamber (21); and a gas injection channel is formed between the outer periphery of the circular table part and the inner periphery of one end of the spray head body and is communicated with the second annular channel through a diffusion cavity.
6. A spray assembly for a working machine according to claim 5, characterized in that the inner peripheral wall of the mixing chamber (21) is provided with a set of flow mixing vanes (25), one end of the mixing chamber is provided with a first outlet opening (22) through which the mixing chamber communicates with the diffuser opening (23), and a second outlet opening (24) which is arranged obliquely with respect to the axis of the mixing chamber.
7. The spray assembly for construction machinery according to claim 4 or 6, wherein the flow mixing fin group (25) comprises a plurality of groups of flow mixing fins arranged in an axial direction of the mixing chamber, and an inner diameter of the flow mixing fins is larger than a diameter of the liquid ejection hole of the circular table portion.
8. The paint spraying assembly for construction machinery as claimed in claim 7, wherein each set of the mixed flow pieces includes a plurality of mixed flow segments (27) which are uniformly distributed in a circumferential direction, and the mixed flow segments of the plurality of sets of the mixed flow pieces are staggered in the circumferential direction with an overlap as viewed in an axial direction.
9. A spray assembly for a working machine according to claim 6 or 7, characterized in that the outer periphery of said first outlet orifice is formed with a conical arcuate land portion (26) which projects into the mixing chamber, and a plurality of second outlet orifices are connected to the arcuate portion of the conical arcuate land portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210357460.4A CN114682409A (en) | 2022-04-07 | 2022-04-07 | Spraying assembly for engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210357460.4A CN114682409A (en) | 2022-04-07 | 2022-04-07 | Spraying assembly for engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114682409A true CN114682409A (en) | 2022-07-01 |
Family
ID=82142034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210357460.4A Pending CN114682409A (en) | 2022-04-07 | 2022-04-07 | Spraying assembly for engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114682409A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1202040A (en) * | 1967-12-29 | 1970-08-12 | Barking Brassware Company Ltd | Improvements in or relating to liquid spray devices |
| CN202398455U (en) * | 2011-09-30 | 2012-08-29 | 北京北机机电工业有限责任公司 | Jetting mechanism |
| DE102014100605A1 (en) * | 2014-01-21 | 2015-07-23 | Paperchine Gmbh | Nozzle arrangement with self-cleaning front surface |
| CN107847884A (en) * | 2015-07-03 | 2018-03-27 | 杜尔系统股份公司 | Coating agent valve |
| CN108970825A (en) * | 2018-08-09 | 2018-12-11 | 江苏大学镇江流体工程装备技术研究院 | A kind of gas-liquid mixed jet spray device |
| CN110449282A (en) * | 2019-08-14 | 2019-11-15 | 溧阳市盛杰机械有限公司 | A kind of injection apparatus for being surface-treated or painting |
| CN112024150A (en) * | 2020-09-04 | 2020-12-04 | 万载鹏威实业有限公司 | Automatic spraying device for spraying production line |
| CN213494383U (en) * | 2020-10-10 | 2021-06-22 | 廊坊韩清环保科技有限公司 | Steam-water mixing nozzle |
| CN214052154U (en) * | 2020-11-30 | 2021-08-27 | 佛山市格强塑胶五金有限公司 | Internal mixing air atomizing nozzle |
| CN214864522U (en) * | 2021-04-03 | 2021-11-26 | 绍兴上虞银河包装制品有限公司 | Intelligent gas-liquid mixed flow nozzle |
-
2022
- 2022-04-07 CN CN202210357460.4A patent/CN114682409A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1202040A (en) * | 1967-12-29 | 1970-08-12 | Barking Brassware Company Ltd | Improvements in or relating to liquid spray devices |
| CN202398455U (en) * | 2011-09-30 | 2012-08-29 | 北京北机机电工业有限责任公司 | Jetting mechanism |
| DE102014100605A1 (en) * | 2014-01-21 | 2015-07-23 | Paperchine Gmbh | Nozzle arrangement with self-cleaning front surface |
| CN107847884A (en) * | 2015-07-03 | 2018-03-27 | 杜尔系统股份公司 | Coating agent valve |
| CN108970825A (en) * | 2018-08-09 | 2018-12-11 | 江苏大学镇江流体工程装备技术研究院 | A kind of gas-liquid mixed jet spray device |
| CN110449282A (en) * | 2019-08-14 | 2019-11-15 | 溧阳市盛杰机械有限公司 | A kind of injection apparatus for being surface-treated or painting |
| CN112024150A (en) * | 2020-09-04 | 2020-12-04 | 万载鹏威实业有限公司 | Automatic spraying device for spraying production line |
| CN213494383U (en) * | 2020-10-10 | 2021-06-22 | 廊坊韩清环保科技有限公司 | Steam-water mixing nozzle |
| CN214052154U (en) * | 2020-11-30 | 2021-08-27 | 佛山市格强塑胶五金有限公司 | Internal mixing air atomizing nozzle |
| CN214864522U (en) * | 2021-04-03 | 2021-11-26 | 绍兴上虞银河包装制品有限公司 | Intelligent gas-liquid mixed flow nozzle |
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