CN201895264U - Spray gun device for shot blasting - Google Patents
Spray gun device for shot blasting Download PDFInfo
- Publication number
- CN201895264U CN201895264U CN2010205827018U CN201020582701U CN201895264U CN 201895264 U CN201895264 U CN 201895264U CN 2010205827018 U CN2010205827018 U CN 2010205827018U CN 201020582701 U CN201020582701 U CN 201020582701U CN 201895264 U CN201895264 U CN 201895264U
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- inlet pipe
- shot
- mixing chamber
- air inlet
- spray gun
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Abstract
The utility model provides a spray gun device for shot blasting, which comprises a main body, a mixing chamber, an air inlet pipe, a nozzle and a shot inlet pipe, wherein the mixing chamber is arranged in the main body and is provided with a front end, a rear end and a side wall, and the side wall is positioned between the front end and the rear end; the front end, the rear end and the side wall are respectively provided with an opening; the air inlet pipe is communicated with the opening at the front end of the mixing chamber; the nozzle is communicated with the opening at the rear end of the mixing chamber, and the shot inlet pipe is communicated with the opening on the side wall of the mixing chamber; the air inlet pipe is provided with an extension part positioned in the main body, and the extension part of the air inlet pipe extends to the position basically flushed with the starting point of the nozzle in the main body. The extension part of the air inlet pipe entering the mixing chamber is basically flushed with the starting point of the nozzle, so that the air inlet pipe keeps off a shot blasting port, thereby avoiding quick abrasion and damage to the air inlet pipe; meanwhile, air flow can enter the nozzle without losses to enhance the efficient spraying strength.
Description
Technical field
The utility model relates to a kind of shot-peening spray gun device, refers to be used for the shot-peening spray gun device that the heavy loading locomotive traction gear is strengthened especially.
Background technology
Current, the railway freight heavy loading has become the important trend of China Railway development.Thus, quite high requirement has been proposed for the resistance to wearing of heavy loading locomotive traction gear, anti-bonding and anti-fatigue ability.Shot peening strengthening is as a kind of effective process of surface treatment, and the residual compressive stress of its introducing can obviously improve the fatigue strength and the performances such as fatigue life, surface strength and hardness, compressive resistance corrosion and high temperature oxidation resisting of material.The shot-peening rifle is the significant components of shot blasting equipment, and the structure of shot-peening rifle is very big for the shot blasting effect influence.Traditional spray gun structure comprises air inlet pipe 1, bullet inlet pipe 2, mixing chamber 3, sleeve 4, nozzle 5 as shown in Figure 1 equally.This structure has the following disadvantages: the pipe range that air inlet pipe 1 stretches in the mixing chamber 3 is shorter, near the very easily wearing and tearing mouth of pipe, and pipe is hit the crooked dynamics that air sprays that can influence afterwards by bullet simultaneously.Nozzle 5 only is made up of contraction section and diffuser two parts, and is easy to wear between two sections, do not have the smooth transition district between two sections simultaneously, is not easy to pill and quickens.Air inlet pipe 1 and bullet inlet pipe 2 are connected toothed segment sawtooth height and equate that the sawtooth gradient is more slow with abrasive rubber, be unfavorable for that rubber tube inserts, or rubber tube comes off easily after inserting.
The utility model content
The purpose of this utility model is: at the problem that above-mentioned prior art exists, it is big to propose a kind of jet power, the shot-peening spray gun device that the firm suitable heavy loading locomotive traction gear of structure is used.
The purpose of this utility model is achieved through the following technical solutions:
A kind of shot-peening spray gun device comprises: main body; Be arranged in the mixing chamber of main body, mixing chamber has front end, rear end and the sidewall between front-end and back-end, is equipped with opening on described front end, rear end and the sidewall; The air inlet pipe that is communicated with the front opening of mixing chamber; The nozzle that is communicated with the open rearward end of mixing chamber; The bullet inlet pipe that is communicated with the sidewall opening of mixing chamber; Described air inlet pipe has the extension that is positioned at main body, and the extension of described air inlet pipe extends to and the concordant substantially position of the starting point of nozzle in main body.
Further, described nozzle is by the contraction section that is positioned at mixing chamber one side, flat segments in the middle of being positioned at is formed with the diffuser that is positioned at rear jet expansion one side, described contraction section diameter from front to back diminishes gradually by the same gradient, described flat segments diameter is constant, and described diffuser becomes big gradually by same gradient diameter from front to back.
Further, the gradient of described contraction section is greater than the gradient of diffuser.
Further, the length of described contraction section is less than the length of diffuser.
Further, the maximum gauge of described contraction section is greater than the maximum gauge of diffuser.
Further, the length of described flat segments is greater than the length of contraction section, and less than the length of diffuser.
Further, described air inlet pipe has that to be positioned at main body outer, with the connecting portion that the extraneous air induction system is connected, has the toothed segment that highly edges up from front to back outside the described connecting portion.
Further, the extension of described air inlet pipe is shaped on external screw thread, and the appropriate section endoporus of mixing chamber is furnished with internal thread in the main body, and both are by being threaded.
Further, the mixing chamber sidewall opening is communicated with oblique circular cylinder hole on being positioned at main body, and the bullet inlet pipe is welded in the oblique circular cylinder hole.
Further, the outer surface hardness of described air inlet pipe is HRC62～65.
Further, the inner surface hardness of described nozzle is HRC62～65.
Further, the surface roughness of nozzle interior is Ra0.8～1.2.
The beneficial effects of the utility model are:
The extension that enters mixing chamber of air inlet pipe is concordant substantially with the starting point of nozzle, this makes it avoid the shot-peening jet on the one hand, avoid the air inlet pipe by very quick-wearing damage, the high speed bullet of also having avoided on the other hand being accelerated directly clashes into the mixing chamber inwall, has effectively prolonged the life-span of mixing chamber.This also makes air-flow to increase effective injection dynamics near the loss-free nozzle that enters simultaneously.
Further, increase the length of nozzle flat segments, make it greater than contraction section, and, provide longer more concentrated boost phase, make that the speed of pellet injection is bigger, surface treatment work better effects if to bullet less than diffuser; Simultaneously big length can also avoid because the continuous wearing and tearing that flat segments is born the high speed bullet for a long time, too fast being ground away, make can its longer time bear bullet impact wearing and tearing, the life-span of improving nozzle effectively.
Further, the gradient greater than diffuser that the gradient of contraction section is provided with helps increasing the influx of bullet like this, forms telescopic effect, makes the unit interval bullet quantity of inner nozzle ejection increase, further the effect of enhanced surface treatment work.
Further, increase the case hardness of air inlet pipe and nozzle, improved wear resistance; Reduced the nozzle interior surface roughness, the frictional resistance when more helping reducing the pill injection increases the shot-peening hitting dynamics, the better effects if of shot-peening processing.
In addition, the utility model has also improved the toothed segment shape that is positioned at the outer connecting portion of main body of air inlet pipe, is convenient to the plug-in mounting of rubber tube, and difficult drop-off behind the plug-in mounting.
The utility model has improved nozzle diffuser pellet injection speed significantly, hitting dynamics increases, and therefore, the shot-peening working (machining) efficiency is improved, reduced requirement simultaneously, only needed with just reaching identical shot blasting effect than original littler air pressure to air-pressure equipment; Simultaneously, overall structure is solid and reliable.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Fig. 1 is traditional spray gun device cross-sectional view.
Fig. 2 is a cross-sectional view of the present utility model.
Wherein,
1 air inlet pipe, 4 sleeves
2 bullet inlet pipes, 5 nozzles
3 mixing chambers
The specific embodiment
Following with reference to the description of drawings specific embodiment of the utility model.
As Fig. 2, the utility model comprises: main body is arranged in the mixing chamber 3 of main body, air inlet pipe 1, bullet inlet pipe 2, sleeve 4, nozzle 5.The elongated area that enters in the main body of air inlet pipe 1 is shaped on external screw thread, and the appropriate section endoporus of mixing chamber 3 is furnished with internal thread in the main body, and both are by being threaded.
Mixing chamber is roughly cylindrical, has front end, rear end and sidewall, and described front end, rear end and sidewall respectively are provided with an opening, and a sidewall opening and an oblique circular cylinder hole that is positioned on the main body are communicated with, and bullet inlet pipe 2 is welded in the oblique circular cylinder hole.
Not outstanding mixing chamber 3 inner surfaces of the end that bullet inlet pipe 2 stretches into.Nozzle 5 stretches into mixing chamber 3 from the opening of mixing chamber rear end, and utilize sleeve 4 with nozzle 5 and mixing chamber 3 by the locking that is threaded.There is annular knurl on sleeve 4 surfaces.
Described air inlet pipe 1 stretches into mixing chamber 3 from the front opening of mixing chamber 3, has the extension that is positioned at the outer connecting portion of main body and is positioned at main body.Its connecting portion is connected with abrasive rubber with the extraneous air induction system, and the connecting portion outside has the toothed segment that highly edges up, and is convenient to the plug-in mounting of rubber tube; The sawtooth dorsal part is the right angle gradient, i.e. the axis normal of the dorsal surface of sawtooth and air inlet pipe, difficult drop-off behind the rubber tube plug-in mounting like this.
The contraction section that air inlet pipe 1 enters mixing chamber 3 and nozzle 5 flushes substantially, makes the mouth of pipe of air inlet pipe 1 avoid the pellet injection mouth, has reduced the impact wear of bullet grain to air inlet pipe 1 mouth of pipe.Simultaneously, this makes air-flow to increase effective injection dynamics near the loss-free nozzle that enters.It should be understood that herein concordant substantially is meant that the initiating terminal of the contraction section of the terminal and nozzle 5 of the extension of air inlet pipe 1 roughly is connected to each other from beginning to end in the axial direction.Yet because manufacturing and rigging error inevitably exist, may there be small distance between the initiating terminal of the contraction section of the end of air inlet pipe 1 and nozzle 5, the end of air inlet pipe 1 also may enter into nozzle 5 slightly, and these foozles all still belong to the concordant substantially situation of initiating terminal of the extension and the nozzle of air inlet pipe.
Described nozzle 5 adopts syllogic venturi type nozzle, form by three sections, be positioned at the contraction section of the place ahead mixing chamber 3 one sides, flat segments in the middle of being positioned at and the contraction section that is positioned at outlet one side of rear nozzle 5, described contraction section diameter from front to back diminishes gradually by the same gradient, described flat segments diameter is constant, and described diffuser diameter from front to back becomes big gradually by the same gradient.The gradient of contraction section is greater than the gradient of diffuser.The length of contraction section is less than the length of diffuser.The maximum gauge of contraction section is greater than the maximum gauge of diffuser.This structure has increased the neutral straight section, and help air-flow and quicken, and the length of described flat segments is greater than the length of contraction section, and less than the length of diffuser.Shot-peening can obtain the acceleration of sufficient time at narrower interlude, makes jet power big; Increased the contraction section diameter, increased substantially nozzle diffuser pellet injection speed, hitting dynamics increases, and the shot-peening working (machining) efficiency improves, to the requirement reduction of air-pressure equipment.
The outer surface hardness of described air inlet pipe 1 is brought up to HRC62～65, has strengthened wear resistance.The inner surface hardness that described nozzle 5 adopts is brought up to HRC62～65, has strengthened wear resistance.The roughness on the surface of described nozzle 5 inside is reduced to and is Ra0.8～1.2, makes its inner surface Paint Gloss, the frictional resistance when reducing the pill injection.
Shot-peening spray gun device of the present utility model is used to connect the abrasive rubber pipe that compressed air shotblasting machine is carried compressed air and bullet, and compressed air drives pill and sprays to the gear workpiece, and it is big to have hitting dynamics, and the efficient height is simple in structure, easy accessibility, characteristics such as long service life.
In addition to the implementation, the utility model also can have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, are the protection domain of the utility model requirement.
Claims (10)
1. a shot-peening spray gun device comprises: main body; Be arranged in the mixing chamber of main body, mixing chamber has front end, rear end and the sidewall between front-end and back-end, is equipped with opening on described front end, rear end and the sidewall; The air inlet pipe that is communicated with the front opening of mixing chamber; The nozzle that is communicated with the open rearward end of mixing chamber; The bullet inlet pipe that is communicated with the sidewall opening of mixing chamber; It is characterized in that: described air inlet pipe has the extension that is positioned at main body, and the extension of described air inlet pipe extends to and the concordant substantially position of the starting point of nozzle in main body.
2. shot-peening spray gun device according to claim 1, it is characterized in that: described nozzle is by the contraction section that is positioned at mixing chamber one side, flat segments in the middle of being positioned at is formed with the diffuser that is positioned at rear jet expansion one side, described contraction section diameter from front to back diminishes gradually by the same gradient, described flat segments diameter is constant, and described diffuser becomes big gradually by same gradient diameter from front to back.
3. shot-peening spray gun device according to claim 2 is characterized in that: the gradient of described contraction section is greater than the gradient of diffuser.
4. shot-peening spray gun device according to claim 2 is characterized in that: the maximum gauge of described contraction section is greater than the maximum gauge of diffuser, and the length of described contraction section is less than the length of diffuser.
5. shot-peening spray gun device according to claim 2 is characterized in that: the length of described flat segments is greater than the length of contraction section, and less than the length of diffuser.
6. shot-peening spray gun device according to claim 1 is characterized in that: described air inlet pipe has that to be positioned at main body outer, with the connecting portion that the extraneous air induction system is connected, has the toothed segment that highly edges up from front to back outside the described connecting portion.
7. shot-peening spray gun device according to claim 6 is characterized in that: the axis normal of the dorsal surface of described toothed segment and air inlet pipe.
8. shot-peening spray gun device according to claim 1 is characterized in that: the mixing chamber sidewall opening is communicated with oblique circular cylinder hole on being positioned at main body, and the bullet inlet pipe is welded in the oblique circular cylinder hole.
9. shot-peening spray gun device according to claim 1 is characterized in that: the outer surface hardness of described air inlet pipe is HRC62～65, and the inner surface hardness of described nozzle is HRC62～65.
10. shot-peening spray gun device according to claim 1 is characterized in that: the surface roughness of nozzle interior is Ra0.8～1.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205827018U CN201895264U (en) | 2010-10-29 | 2010-10-29 | Spray gun device for shot blasting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205827018U CN201895264U (en) | 2010-10-29 | 2010-10-29 | Spray gun device for shot blasting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201895264U true CN201895264U (en) | 2011-07-13 |
Family
ID=44253181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205827018U Expired - Fee Related CN201895264U (en) | 2010-10-29 | 2010-10-29 | Spray gun device for shot blasting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201895264U (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102085643A (en) * | 2010-10-29 | 2011-06-08 | 南车戚墅堰机车车辆工艺研究所有限公司 | Shot blasting spray gun |
| CN102642179A (en) * | 2012-04-28 | 2012-08-22 | 东莞市吉川机械设备有限公司 | Spray gun |
| CN102672625A (en) * | 2011-03-17 | 2012-09-19 | 新东工业株式会社 | Nozzle for shot peening and shot peening device with the nozzle |
| CN102825551A (en) * | 2012-08-15 | 2012-12-19 | 上海中国弹簧制造有限公司 | Strengthening process for shot blasting on inner wall of stabilizer bar and shot blasting equipment used therein |
| CN104033654A (en) * | 2014-06-10 | 2014-09-10 | 成都大漠石油机械有限公司 | Supporting device for petroleum pipelines |
| CN104061366A (en) * | 2014-06-10 | 2014-09-24 | 成都大漠石油机械有限公司 | Pipeline supporting post |
| CN106392900A (en) * | 2016-12-08 | 2017-02-15 | 贵州大学 | Hyperbolic nozzle of sand blasting machine |
| CN106525627A (en) * | 2016-10-10 | 2017-03-22 | 南京航空航天大学 | Supersonic sand blasting gun |
| CN106695569A (en) * | 2016-12-08 | 2017-05-24 | 贵州大学 | Efficient wet type sand-blasting machine |
| CN108687333A (en) * | 2018-07-20 | 2018-10-23 | 中国航发哈尔滨东安发动机有限公司 | Tooling is cleared up in a kind of casting oil circuit and inner cavity |
| CN109852780A (en) * | 2019-02-22 | 2019-06-07 | 江苏大学 | A kind of mixing nozzle of surface shot blasting strengthening |
| CN110434766A (en) * | 2019-07-30 | 2019-11-12 | 共享铸钢有限公司 | A kind of peener of cast-internal complexity cavity |
| CN112828777A (en) * | 2020-12-31 | 2021-05-25 | 广州大学 | Multiphase flow rotating jet mixing device for reinforced grinding processing |
-
2010
- 2010-10-29 CN CN2010205827018U patent/CN201895264U/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102085643A (en) * | 2010-10-29 | 2011-06-08 | 南车戚墅堰机车车辆工艺研究所有限公司 | Shot blasting spray gun |
| CN102085643B (en) * | 2010-10-29 | 2015-02-11 | 南车戚墅堰机车车辆工艺研究所有限公司 | Shot blasting spray gun |
| CN102672625A (en) * | 2011-03-17 | 2012-09-19 | 新东工业株式会社 | Nozzle for shot peening and shot peening device with the nozzle |
| CN102672625B (en) * | 2011-03-17 | 2016-12-14 | 新东工业株式会社 | Shot peening nozzle and possess the blasting apparatus of this nozzle |
| CN102642179A (en) * | 2012-04-28 | 2012-08-22 | 东莞市吉川机械设备有限公司 | Spray gun |
| CN102825551B (en) * | 2012-08-15 | 2015-03-25 | 上海中国弹簧制造有限公司 | Strengthening process for shot blasting on inner wall of stabilizer bar and shot blasting equipment used therein |
| CN102825551A (en) * | 2012-08-15 | 2012-12-19 | 上海中国弹簧制造有限公司 | Strengthening process for shot blasting on inner wall of stabilizer bar and shot blasting equipment used therein |
| CN104033654A (en) * | 2014-06-10 | 2014-09-10 | 成都大漠石油机械有限公司 | Supporting device for petroleum pipelines |
| CN104061366A (en) * | 2014-06-10 | 2014-09-24 | 成都大漠石油机械有限公司 | Pipeline supporting post |
| CN106525627A (en) * | 2016-10-10 | 2017-03-22 | 南京航空航天大学 | Supersonic sand blasting gun |
| CN106525627B (en) * | 2016-10-10 | 2020-04-07 | 南京航空航天大学 | Supersonic sand-blasting gun |
| CN106392900A (en) * | 2016-12-08 | 2017-02-15 | 贵州大学 | Hyperbolic nozzle of sand blasting machine |
| CN106695569A (en) * | 2016-12-08 | 2017-05-24 | 贵州大学 | Efficient wet type sand-blasting machine |
| CN108687333A (en) * | 2018-07-20 | 2018-10-23 | 中国航发哈尔滨东安发动机有限公司 | Tooling is cleared up in a kind of casting oil circuit and inner cavity |
| CN109852780A (en) * | 2019-02-22 | 2019-06-07 | 江苏大学 | A kind of mixing nozzle of surface shot blasting strengthening |
| CN109852780B (en) * | 2019-02-22 | 2021-08-31 | 利欧集团湖南泵业有限公司 | Surface shot peening strengthened mixing nozzle |
| CN110434766A (en) * | 2019-07-30 | 2019-11-12 | 共享铸钢有限公司 | A kind of peener of cast-internal complexity cavity |
| CN110434766B (en) * | 2019-07-30 | 2021-12-03 | 共享铸钢有限公司 | Shot blasting device for complex cavity in casting |
| CN112828777A (en) * | 2020-12-31 | 2021-05-25 | 广州大学 | Multiphase flow rotating jet mixing device for reinforced grinding processing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110713 Termination date: 20161029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |