CN205184549U - Wear -resisting nozzle of high speed of sand blasting machine - Google Patents
Wear -resisting nozzle of high speed of sand blasting machine Download PDFInfo
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- CN205184549U CN205184549U CN201521000542.5U CN201521000542U CN205184549U CN 205184549 U CN205184549 U CN 205184549U CN 201521000542 U CN201521000542 U CN 201521000542U CN 205184549 U CN205184549 U CN 205184549U
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- compression unit
- bottleneck throat
- nozzle
- blasting machine
- sand
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Abstract
The utility model provides a wear -resisting nozzle of high speed of sand blasting machine, nozzle are the solid of revolution includes outer wall and inner wall, the inner wall encloses into a cavity, and input part, compression unit, bottleneck throat and injection portion in the cavity connect gradually, and the compression unit is to outside protrusion and along spouting the shrink of material blowout orientation, the centre of bottleneck throat is sunken to the inboard, and injection portion enlarges to outside protrusion and along spouting material blowout orientation. The utility model discloses an improve compressed air's pressure along the front end of the compression unit of spray direction shrink and bottleneck throat, rear end and injection portion through the bottleneck throat that enlarges along spray direction release compressed air and spout the material for compressed air with spout the material and can obtain the effect of high -velocity jet after through the recess of bottleneck throat.
Description
Technical field
The utility model relates to a kind of nozzle of sand-blasting machine, is specifically related to the improvement of the inwall cavity shape of nozzle of sand spraying machine.
Background technology
For increasing the adhesion of surface coating, usually adopting sand-blasting machine to spray high speed solid particle at surface of the work and obtaining certain cleannes and roughness.Sand-blasting machine adopts compressed air to be power, forms high velocity jet bundle and material spray high velocity jet gone out.Improve the jet velocity of sand-blasting machine except improving compressed-air actuated pressure, can also be realized by the shape changing nozzle inner walls cavity.
And improve compressed-air actuated pressure and can increase the expense that sand-blasting machine uses, the jet velocity that the shape therefore by changing nozzle inner walls cavity realizes improving sand-blasting machine is an economical and practical scheme.In addition, the material spray of solid granular is when nozzle interior high-speed mobile, and material spray can etch nozzle inner walls, and especially the etching at the position that inwall mesoporous is less can be more obvious.And if employing change manufactures the material of nozzle to improve the anti-etching ability of nozzle inner walls, then can significantly promote the cost manufacturing nozzle.
Find that following patent and the utility model have similarity by domestic retrieval:
Application number is 201020659469.3, name is called the utility model of " nozzle of sand spraying machine ", this utility model discloses a kind of nozzle of sand spraying machine, comprise input part, described input part is provided with the transfer passage for carrying material spray, the conveying downstream of described input part is provided with injection portion, and described injection portion is provided with the injection channel be communicated with described transfer passage, and the jet of described injection channel becomes flat.Surface of the work good evenness after this nozzle of sand spraying machine sandblasting, sandblasting efficiency is high.
Although the nozzle of this utility model also has the transfer passage and injection channel that are surrounded by inwall, the junction of its transfer passage and injection channel does not adopt level and smooth transition structure, and its inwall surrounding its injection channel caves inward instead of outwardly convex.These structures can increase the material spray of solid granular and the collision of inwall and friction to a certain extent, can increase the etching of material spray to nozzle inner walls, also can hinder the translational speed of material spray in nozzle.Therefore how to improve the jet velocity of sand-blasting machine, and the ability improving nozzle inner walls anti-etching also needs further research.
Utility model content
The technical problems to be solved in the utility model is: under the prerequisite not improving compressed-air actuated pressure, improves the jet velocity of sand-blasting machine, and improves the anti-etching ability of nozzle inner walls.
Pin is with the problems referred to above, the technical scheme that the utility model proposes is: a kind of high-speed abrasion-proof nozzle of sand-blasting machine, nozzle is revolving body, comprise outer wall and inwall, inwall surrounds a cavity, and the input part in cavity, compression unit, bottleneck throat are connected successively with injection portion, and compression unit protrudes laterally and shrinks along material spray emission direction, cave in the inside in the centre of bottleneck throat, injection portion protrudes laterally and expands along material spray emission direction.
Further, input part is cylindrical cavity, and the diameter of input part is 1.8cm-2cm.
Further, one end of compression unit and input part smooth connection, the other end of compression unit and bottleneck throat smooth connection, the length of compression unit is 1.3cm-2cm.
Further, one end that compression unit is connected with input part, is greater than one end that compression unit is connected with bottleneck throat; And the inwall surrounding compression unit is outwardly annular circular arc band.
Further, the diameter of bottleneck throat middle is 0.6cm-0.8cm, and the inwall surrounding bottleneck throat is a level and smooth annular circular arc band caved in the inside.
Further, cave in the inside in the centre of bottleneck throat, and the angle that recess two ends are formed is greater than 120 degree and is less than 165 degree.
Further, the outer wall of nozzle surrounds one cylindric and one round table-like, and input part, compression unit and bottleneck throat are all wrapped in columned outer wall.
Further, the central axis in input part, compression unit, bottleneck throat and injection portion all on the same line.
The utility model has the advantages that:
1. the input part in nozzle, compression unit, bottleneck throat are connected successively with injection portion, and each junction is all level and smooth connection, the logical inwall that reduces, to the obstruction of the material spray of the solid granular of high-speed mobile, improves the anti-etching ability of inwall, and decreases the impact on material spray translational speed.
2. the direction that the compression unit of nozzle sprays along material spray reduces bore faster, the middle part of bottleneck throat bore is reduced to minimum after, together with injection portion, bore is amplified faster again, material spray in nozzle and the compressed air translational speed in nozzle is changed with the change of bore, after material spray and compressed air are by the middle part of bottleneck throat, speed can increase considerably.Thus make also can obtain higher jet velocity when using the compressed air compared with low pressure, reduce the compressed-air actuated cost that sand-blasting machine manufactures High Voltage.
Accompanying drawing explanation
Fig. 1 is three-dimensional cutaway view one of the present utility model;
Fig. 2 is three-dimensional cutaway view two of the present utility model;
Fig. 3 is stereogram of the present utility model;
In figure: 1 nozzle, 11 outer walls, 12 inwalls, 13 input parts, 14 compression units, 15 bottleneck throats, 16 injection portions.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the description of one step is done to the utility model:
Embodiment one
As shown in Figure 3, nozzle 1 is the revolving body surrounded by outer wall 11 and inwall 12, and nozzle 1 is made up of carbide alloy, has stronger wearability.
As depicted in figs. 1 and 2, the inwall 12 of nozzle 1 defines a cavity, and the input part 13 of cavity, compression unit 14, bottleneck throat 15 and injection portion 16 are the entirety linked together, and its central axis all on the same line.Wherein input part 13 is cylindrical cavity, compressed air together with the material spray of solid granular from input part 13 to injection portion 16 movement fast.In whole cavity, the diameter of input part 13 is comparatively large, and the diameter of input part 13 is the preferred value of d1, d1 is 1.8cm-2cm.
One end of compression unit 14 and input part 13 smooth connection, and the diameter of junction is identical with the diameter of input part 13.The other end of compression unit 14 and bottleneck throat 15 smooth connection, and the diameter of this junction is less than the diameter of input part 13.The inwall 12 surrounding compression unit 14 is the endless belt of protruding laterally and shrinking along material spray emission direction.Compression unit 14 is the structures protruded laterally, and compared with the structure caved in the inside, the structure protruded laterally can reduce the impact in the translational speed of compression unit 14 of compressed air and material spray.
Because compression unit 14 shrinks along the direction of material spray ejection, therefore compressed air and material spray are squeezed in compression unit 14, and compressed-air actuated pressure is improved further, carry out high velocity jet prepare for material spray.The length of compression unit 14 is the preferred value of d2, d2 is 1.3cm-2cm.
One end of bottleneck throat 15 and compression unit 14 smooth connection, and the direction that one end that bottleneck throat 15 is connected with compression unit 14 sprays along material spray is shunk further.With the functional similarity of compression unit 14, bottleneck throat 15 is also one of key position of the jet velocity improving material spray.Meanwhile, bottleneck throat 15 or solid granular material spray and inwall 12 collide and rub goes through harmful position most, and the structure of bottleneck throat 15 can directly affect the jet velocity of material spray and the anti-etching ability of nozzle 1 inwall 12.
For improving the jet velocity of material spray, should cave in the inside in the centre of bottleneck throat 15, but cave in the inside in the centre of bottleneck throat 15 and the etching of inwall 12 can be caused even more serious.For solving this contradiction, need by recess manufacture level and smooth transitional region, and the angle of recess both sides can not be too little.The angle of recess both sides is angle A, and the preferred value of angle A is less than 165 degree for being greater than 120 degree.
And bottleneck throat 15 is comparatively large apart from the distance of nozzle 1 outer wall 11, when the etching of bottleneck throat 15 is not very serious, nozzle 1 can not can not use due to lower thickness.That is, the length of outer wall 11 is manufactured exceed bottleneck throat 15 can service life of prolonging nozzle 1.
The other end of bottleneck throat 15 and injection portion 16 are in smoothing junction, and the role release of mainly trying one's best in injection portion 16 is by the air that compresses and material spray, and therefore, injection portion 16 protrudes laterally and expands along material spray emission direction.But be anti-upper material spray too scattering, also in order to reduce the decay of a small amount of material spray and exit, injection portion 16 collision rift speed, the cross section in injection portion 16 is the smooth arc shape that outside is protruded.
In sum, nozzle 1 in the present embodiment, that compressed-air actuated pressure is improved in the front end of compression unit 14 by shrinking along injection direction and bottleneck throat 15, discharge compressed air and material spray by the rear end of bottleneck throat 15 that expands along injection direction and injection portion 16, make compressed air and material spray by the effect of high velocity jet can be obtained after the recess of bottleneck throat 15.In addition, the connection that input part 13, compression unit 14, bottleneck throat 15 and injection portion 16 are level and smooth successively, decreases the obstruction of the material spray of the solid granular of inwall 12 pairs of high-speed mobile, indirectly accelerates the final jet velocity of material spray.And the length of outer wall 11 manufacture exceed bottleneck throat 15 can service life of prolonging nozzle 1.
Obviously, under the prerequisite not departing from principle described in the utility model, the some improvement made or modification all should be considered as protection domain of the present utility model.
Claims (8)
1. the high-speed abrasion-proof nozzle (1) of a sand-blasting machine, nozzle (1) is revolving body, comprise outer wall (11) and inwall (12), inwall (12) surrounds a cavity, it is characterized in that, the input part (13) in cavity, compression unit (14), bottleneck throat (15) are connected successively with injection portion (16), and compression unit (14) protrudes laterally and shrinks along material spray emission direction, cave in the inside in the centre of bottleneck throat (15), injection portion (16) are protruded laterally and expanded along material spray emission direction.
2. the high-speed abrasion-proof nozzle (1) of a kind of sand-blasting machine according to claim 1, is characterized in that, input part (13) is cylindrical cavity, and the diameter of input part (13) is 1.8cm-2cm.
3. the high-speed abrasion-proof nozzle (1) of a kind of sand-blasting machine according to claim 1, it is characterized in that, one end of compression unit (14) and input part (13) smooth connection, the other end of compression unit (14) and bottleneck throat (15) smooth connection, the length of compression unit (14) is 1.3cm-2cm.
4. the high-speed abrasion-proof nozzle (1) of a kind of sand-blasting machine according to claim 3, is characterized in that, one end that compression unit (14) is connected with input part (13) is greater than one end that compression unit (14) is connected with bottleneck throat (15); And surround the inwall (12) of compression unit (14) for outwardly annular circular arc band.
5. the high-speed abrasion-proof nozzle (1) of a kind of sand-blasting machine according to claim 1, it is characterized in that, the diameter of bottleneck throat (15) middle is 0.6cm-0.8cm, and the inwall (12) surrounding bottleneck throat (15) is a level and smooth annular circular arc band caved in the inside.
6. the high-speed abrasion-proof nozzle (1) of a kind of sand-blasting machine according to claim 1 or 5, it is characterized in that, cave in the inside in the centre of bottleneck throat (15), and the angle that recess two ends are formed is greater than 120 degree and is less than 165 degree.
7. the high-speed abrasion-proof nozzle (1) of a kind of sand-blasting machine according to claim 1, it is characterized in that, the outer wall (11) of nozzle (1) surrounds one cylindric and one round table-like, and input part (13), compression unit (14) and bottleneck throat (15) are all wrapped in columned outer wall (11).
8. the high-speed abrasion-proof nozzle (1) of a kind of sand-blasting machine according to claim 1, is characterized in that, the central axis of input part (13), compression unit (14), bottleneck throat (15) and injection portion (16) all on the same line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521000542.5U CN205184549U (en) | 2015-12-07 | 2015-12-07 | Wear -resisting nozzle of high speed of sand blasting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521000542.5U CN205184549U (en) | 2015-12-07 | 2015-12-07 | Wear -resisting nozzle of high speed of sand blasting machine |
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| Publication Number | Publication Date |
|---|---|
| CN205184549U true CN205184549U (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521000542.5U Active CN205184549U (en) | 2015-12-07 | 2015-12-07 | Wear -resisting nozzle of high speed of sand blasting machine |
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| CN (1) | CN205184549U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107553350A (en) * | 2017-10-18 | 2018-01-09 | 安徽迅普电缆有限公司 | A kind of nozzle of sand spraying machine |
| CN107695894A (en) * | 2017-10-18 | 2018-02-16 | 安徽迅普电缆有限公司 | A kind of nozzle |
| CN107756266A (en) * | 2017-11-27 | 2018-03-06 | 重庆优特模具有限公司 | Blast nozzle |
| CN108818326A (en) * | 2018-07-10 | 2018-11-16 | 马鞍山纽泽科技服务有限公司 | A kind of workpiece sand blasting unit and method |
-
2015
- 2015-12-07 CN CN201521000542.5U patent/CN205184549U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107553350A (en) * | 2017-10-18 | 2018-01-09 | 安徽迅普电缆有限公司 | A kind of nozzle of sand spraying machine |
| CN107695894A (en) * | 2017-10-18 | 2018-02-16 | 安徽迅普电缆有限公司 | A kind of nozzle |
| CN107756266A (en) * | 2017-11-27 | 2018-03-06 | 重庆优特模具有限公司 | Blast nozzle |
| CN107756266B (en) * | 2017-11-27 | 2023-10-27 | 重庆优特模具有限公司 | Sand blast nozzle |
| CN108818326A (en) * | 2018-07-10 | 2018-11-16 | 马鞍山纽泽科技服务有限公司 | A kind of workpiece sand blasting unit and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180525 Address after: 412000 Jinshan Road, Jinshan Science and Technology Industrial Park, lotus pond, Zhuzhou, Hunan, 471 Patentee after: ZHUZHOU MEETYOU CEMENTED CARBIDE Co.,Ltd. Address before: 412000 Jinshan Road 471, Jinshan Industrial Park, lotus pond, Zhuzhou, Hunan Patentee before: Yang Kangning |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A high speed wear resistant nozzle for sandblasting machine Effective date of registration: 20201029 Granted publication date: 20160427 Pledgee: Bank of China Limited by Share Ltd. Zhuzhou East Branch Pledgor: ZHUZHOU MEETYOU CEMENTED CARBIDE Co.,Ltd. Registration number: Y2020980007355 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220725 Granted publication date: 20160427 Pledgee: Bank of China Limited by Share Ltd. Zhuzhou East Branch Pledgor: ZHUZHOU MEETYOU CEMENTED CARBIDE Co.,Ltd. Registration number: Y2020980007355 |