CN103567881A - Shot blasting device and method for thin plates - Google Patents
Shot blasting device and method for thin plates Download PDFInfo
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- CN103567881A CN103567881A CN201310547237.7A CN201310547237A CN103567881A CN 103567881 A CN103567881 A CN 103567881A CN 201310547237 A CN201310547237 A CN 201310547237A CN 103567881 A CN103567881 A CN 103567881A
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Abstract
The invention discloses a shot blasting device and method for thin plates. The shot blasting device for thin plates comprises a shot blowing device, a vertical screw conveyor and a shot blasting chamber, wherein the shot blowing device is arranged at one end of the shot blasting device for thin plates, and used for blowing off residues remaining after shot blowing is performed; one end of the vertical screw conveyor is connected with the shot outlet of the shot blasting chamber; the outer wall of the shot blasting chamber is provided with a plurality of impeller heads, an ejection angle of X degrees is formed between each impeller head and a workpiece, and X is greater than or equal to 25 and less than or equal to 35; meanwhile, the distances between two opposite impeller heads and a thin plate are respectively A and B, a formula that A is equal to B + 40 is satisfied, and B is greater than or equal to 700 mm and less than or equal to 900 mm. According to the invention, shot blasting is performed simultaneously by using several sets of impeller heads which are arranged in a same mode, so that the cleaning speed v of thin plates is greater than or equal to 6 m/mim and less than or equal to 18 m/min, therefore, the work efficiency is greatly improved, and the deformation of thin plates also accords with the requirement of the next working procedure.
Description
Technical field
A kind of method that the present invention relates to shot-blast apparatus and use this equipment to carry out thin plate impeller blasting, particularly a kind of thin plate wheel abrator and method.
Background technology
Shot-blasting machine (shot blasting machine), utilizes High-velocity Projectiles cleaning that impeller head dishes out or the impact cleaning device of strengthening cast(ing) surface.Ball blast function is carried out knockout decoring and cleaning to foundry goods simultaneously.
First shot-blast apparatus is applied to the surperficial scab of foundry industry cast steel, ironcasting and the removing of oxide skin.Nearly all steel-casting, grey foundry goods, malleable iron component, G. Iron Castings etc. all will carry out Shot Blasting.This is not only in order to remove cast(ing) surface oxide skin and scab, also be indispensable preparatory process before casting quality checks simultaneously, such as large-scale gas-turbine casing is carrying out must carrying out strict throwing blast cleaning before nondestructive inspection, to guarantee the reliability of result of detection.In general castings production, throwing blast cleaning is to find that casting surface defect is as the requisite process means of subcutaneous blowhole, cinder hole and scab, cold shut, peeling etc.Non-ferrous casting, as the removing surface of aluminium alloy, copper alloy etc., except the blemish of descaling, discovery foundry goods, main object is to throw shot-peening remove the burr of die casting and obtain the surface quality with decoration meaning, obtains resultant effect.
The subject matter existing in existing correlative technology field has:
(1) the thin plate shot-blast cleaning machine that shot-blasting machine industry is used now thin plate (1.0mm≤δ≤3.0mm) deflection of dishing out is larger, does not reach present manufacturing technique requirent;
(2) existing a kind of common thin plate shot-blasting machine is the method that adopts impeller head oblique fire thin plate, and this method is applicable to the production occasion of end productivity ratio, end ball blast speed (0.3m/mim≤v≤0.8m/mim); If productivity ratio requires high just cannot using;
(3) the impelling angle of impeller head is non-adjustable whole, causes sheet workpiece subregion to clear up.
Summary of the invention
The object of this part is to summarize some aspects of embodiments of the invention and briefly introduces some preferred embodiments.In this part and the application's specification digest and denomination of invention, may do a little simplification or omit to avoid the making object of this part, specification digest and denomination of invention fuzzy, and this simplification or omit can not be for limiting the scope of the invention.
Problem in view of existing in above-mentioned and/or existing thin plate wheel abrator and method for cleaning, has proposed the present invention.
Therefore, an object of the present invention is to provide a kind of thin plate wheel abrator, it can symmetrical ball blast, and adopts identical ball material, ball amount, identical dynamics, and the deflection of sheet workpiece is reduced greatly.
For solving the problems of the technologies described above, the invention provides following technical scheme: a kind of thin plate wheel abrator, comprises, super shot blasting cleaning chamber, plural platform impeller head is installed on its outer wall, and described impeller head is set to become X ° with the impelling angle of workpiece, and meets 25 °≤X °≤35 °; Meanwhile, two relative impeller heads are set and apart from thin plate length, are respectively A, B, and meet A=B+40, wherein 700mm≤B≤900mm; Longitudinal spiral conveyer, its one end is connected with the ball material outlet of super shot blasting cleaning chamber; And, blow ball device, be arranged at one end of described thin plate wheel abrator, in order to blow the residue left behind after ball blast off.
As a kind of preferred version of thin plate wheel abrator of the present invention, wherein: four impeller heads are installed on the outer wall of described super shot blasting cleaning chamber, and four described each two tablecloths of impeller head minute left and right are put.
A kind of preferred version as thin plate wheel abrator of the present invention, wherein: described super shot blasting cleaning chamber is multicell assembly, by main chamber's body and concubine body, formed, described impeller head is arranged on the outer wall of main chamber's body, the both sides, front and back of main chamber's body are concubine body, concubine body be closed chamber body and in be provided with steel plate and multilayer rubber curtain and shield.
As a kind of preferred version of thin plate wheel abrator of the present invention, wherein: described impeller head comprises: impeller, motor, shot wheel, orienting cover, blade, lead ball pipe and guard shield; Described orienting cover is fixed in guard shield and has a window; The inside of orienting cover is installed with shot wheel, has an entrance and four windows on described shot wheel; Describedly lead the side that ball pipe is positioned at guard shield, and lead one end of ball pipe and this entrance of shot wheel is connected, the other end of leading ball pipe connects for ball system; The opposite side of described guard shield is provided with impeller, and a plurality of blades are installed on described impeller, and Leaf positional distribution is in the periphery of orienting cover; Impeller is connected with the output shaft of motor, and by this vane rotary of Motor Drive.
As a kind of preferred version of thin plate wheel abrator of the present invention, wherein: described impeller is connected by conjoint disk with the output shaft of motor, seal disc is also installed between conjoint disk and motor; In described guard shield, be also provided with for preventing the wear plate of ball blast excessive damage guard shield, wear plate comprise be positioned at guard shield inside top top backplate, be positioned at the side guard plate of side inside guard shield and be positioned at the end face protective plate of guard shield inner side end.
As a kind of preferred version of thin plate wheel abrator of the present invention, wherein: the described ball device that blows comprises: Disengagement zone, hopper, give a dinner for a visitor from afar mouth and stream ball mouth; A part for described horizontal conveying worm is stretched out Disengagement zone, on the shell of this extension of upper horizontal conveying worm, charging aperture is installed, this charging aperture is connected with the discharging opening of bucket elevator, and another part of described horizontal conveying worm is positioned at Disengagement zone; Described upper horizontal conveying worm is connected with the output of one speed reducer; Described one end of giving a dinner for a visitor from afar mouthful is connected with Disengagement zone, and give a dinner for a visitor from afar the air port direction of mouth and the transmission direction of upper horizontal conveying worm perpendicular; The other end of giving a dinner for a visitor from afar mouthful is connected with deduster; The below of described Disengagement zone is connected with hopper, and 6 stream ball mouths are arranged at hopper bottom.
Another object of the present invention is to provide a kind of method for cleaning of thin plate wheel abrator, it can adopt several groups of impeller heads ball blast simultaneously, thin plate cleaning speed reaches (6m/mim≤v≤18m/mim), operating efficiency improves greatly, and the deflection of thin plate also meets the requirement of next step operation simultaneously.
For solving the problems of the technologies described above, the invention provides following technical scheme: a kind of method for cleaning, comprise, the impelling angle X ° of impeller head to workpiece is set, and meets 25 °≤X °≤35 °; Two relative impeller heads are respectively A, B apart from thin plate length, and meet A=B+40, wherein 700mm≤B≤900mm; Regulate the confession ball valve above impeller head, make the consistent for ball amount of impeller head.
As a kind of preferred version of thin plate wheel abrator of the present invention, wherein: two that described impeller head is relative are one group and arrange.
Beneficial effect of the present invention:
(1) the present invention is the symmetrical ball blast of a kind of upper and lower, left and right impeller head, adopts identical ball material, ball amount, and identical dynamics, can make the deflection of sheet workpiece greatly reduce;
(2) adopt several groups of impeller heads while ball blasts of identical set mode, thin plate cleaning speed can reach (6m/mim≤v≤18m/mim), and operating efficiency has improved greatly, and the deflection of thin plate also meets the requirement of next step operation simultaneously;
(3) the impelling angle of impeller head can be adjusted, and the whole region of sheet workpiece can both be cleaned out.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.Wherein:
Fig. 1 is the front view of a kind of thin plate wheel abrator of the present invention;
Fig. 2 is the top view of a kind of thin plate wheel abrator of the present invention;
Fig. 3 is the side view of a kind of thin plate wheel abrator of the present invention;
Fig. 4 is the front view of impeller head;
Fig. 5 is the front view of impeller head.
The specific embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with specific embodiment, the specific embodiment of the present invention is described in detail.
A lot of details have been set forth in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here and implement, those skilled in the art can do similar popularization without prejudice to intension of the present invention in the situation that, so the present invention is not subject to the restriction of following public specific embodiment.
Secondly, alleged " embodiment " or " embodiment " refers to special characteristic, structure or the characteristic that can be contained at least one implementation of the present invention herein.Different local in this manual " in one embodiment " that occur not all refer to same embodiment, neither be independent or the embodiment mutually exclusive with other embodiment optionally.
As shown in Figure 1, Figure 2 and Figure 3, be respectively front view, top view and the side view of a kind of thin plate wheel abrator of the present invention.Wherein, described thin plate wheel abrator mainly comprises: blow ball device 1, longitudinal spiral conveyer 2 and super shot blasting cleaning chamber 3.
Blow ball device 1 and be arranged at one end of described thin plate wheel abrator, it plays to blow off the effect of the residue left behind after ball blast.It is comprised of high pressure positive blower and pipeline, flexible pipe and nozzle etc., and, nozzle towards arranging by "eight" shape; Meanwhile, according to hydromechanical principle, the shape of nozzle is designed to round mouth shape, spout flow is maximized, thereby improved the automaticity of equipment and blown ball efficiency, reduced energy consumption.
Again in conjunction with shown in Fig. 4 and Fig. 5, on the outer wall of described super shot blasting cleaning chamber 3, many impeller heads 31 are installed, be four impeller heads 31 in the present embodiment, described 31 minutes each two reasonable Arrangement of left and right of four impeller heads, the outer wall of super shot blasting cleaning chamber 3 is provided with several holes of passing for ball blast, and ball blast can be cleared up the surface of workpiece from all angles.In the present embodiment, impeller head 31 is set to become X ° with the impelling angle of workpiece, and meets 25 °≤X °≤35 °; Meanwhile, two relative impeller heads 31 are set and apart from thin plate length, are respectively A, B, and meet A=B+40, wherein 700mm≤B≤900mm.Described impeller head 31 comprises: impeller 311, conjoint disk 312, motor 313, shot wheel 314, orienting cover 315, blade 316, lead the members such as ball pipe 317, wear plate (3181,3182,3183), guard shield 319.Described orienting cover 315 is fixed in guard shield 319, and it has a window, and can adjust by adjusting orienting cover 315 direction of this window.The inside of orienting cover 315 is installed with shot wheel 314.On described shot wheel 314, there are an entrance and four windows.Describedly lead the side that ball pipe 317 is positioned at guard shield 319, and lead one end of ball pipe 317 and this entrance of shot wheel 314 is connected, the other end connects for ball system (not shown), wherein, for being provided with in ball system for ball lock, in order to regulate ball blast flow, and be convenient to maintenance.The opposite side of described guard shield 319 is provided with impeller 311, and a plurality of blades 316 are installed on described impeller 311, and blade 316 is distributed in the periphery of orienting cover 315.Impeller 311 is connected by conjoint disk 312 with the output shaft of motor 313, and drives this impeller 311 rotations by motor 313.In addition, between conjoint disk 312 and motor 313, seal disc 3121 is also installed.In described guard shield 319, be also provided with for preventing the wear plate of ball blast excessive damage guard shield 319, wear plate comprise be positioned at guard shield 319 inside top top backplate 3181, be positioned at the side guard plate 3182 of guard shield 319 inner side sides and be positioned at the end face protective plate 3183 of guard shield 319 inner side ends.During work, bullet rolls in shot wheel 314 by leading ball pipe 317, and the window that preaceleration presets direction by orienting cover 315 is dished out, and blade 316 continues it to accelerate, and then adjusts impelling and reach powerful strike on workpiece, to reach the object of cleaning.That described impeller head 31 has is simple in structure, easy to maintenance, the advantage such as little takes up room, blade 316 does not need any fixtures such as screw, pin, Spring Card to fix, but blade 316 is inserted in impeller groove (not shown) from impeller 311 centers, rotary when impeller 311, rely on the centrifugal force of blade 316 generations and the boss structure on blade 316 to fix.
Described super shot blasting cleaning chamber 3 is multicell assembly, by main chamber's body 32 and concubine body 33, formed, wherein above-mentioned impeller head 31 is arranged on the outer wall of main chamber's body 32, the both sides, front and back of main chamber's body 32 are concubine body 33, concubine body 33 be closed chamber body and in be provided with the shielding of steel plate and multilayer rubber curtain, to prevent that bullet unrest from flying.In super shot blasting cleaning chamber 3, there is certain negative pressure simultaneously, prevent that dust from escaping.In described super shot blasting cleaning chamber 3, be provided with wear resistant cast iron steel plate, to protect chamber body wall plate to avoid wearing and tearing, more than extending chamber body decades of times in service life; Can utilize the reflection function of bullet, the strike surface of the work remaining valid, improves cleaning quality and cleaning efficiency simultaneously, on cleaning taper collection ball bucket, net is housed, and to intercept foreign material, protection conveying worm, is convenient to maintenance personal's maintenance.Shot blast room body inner casing adopts wear-resisting bag casting nut to hide and bolt, and protection screw is not damaged, and disassembling, assembling and replacing is convenient.In addition,, for preventing that bullet from flying out, in super shot blasting cleaning chamber 3, be provided with protector.
In the present embodiment, this thin plate wheel abrator also comprises separation 4, returns ball chamber 5, lift cylinder 6 and high pressure back blowing machine 7, wherein, goes back to the lower end that ball chamber 5 is arranged at described blowing device 1; And lift cylinder 6 is connected with described high pressure back blowing machine 7.
Sheet workpiece, by transfer roller, enters ball blast region, opens each impeller head 31 carry out ball blast by step.
In order to make in situation that the upper and lower hitting dynamics of thin plate to be processed is identical, first we will design as shown in Figure 3 apart from thin plate length A, B's X ° of the impelling angle of 31 pairs of workpiece of impeller head, impeller head 31, and during through 25 ° of the impelling angles of 31 pairs of workpiece of experimental study proof impeller head≤X °≤35 °, effect is best.Because in the time of X ° <25 °, ball blast dynamics is excessive, the deflection of thin plate is excessive, cannot reach technological requirement; In the time of X ° >25 °, ball blast cannot cover the surface of whole workpiece, can not meet the requirement of a ball blast.The cast of impeller head 31, reaches a conclusion according to designing and calculating, experiment: A=B+40, wherein 700mm≤B≤900mm.Verified, when B<700mm, impelling dynamics and within the specific limits cast are directly proportional, and impelling dynamics does not reach requirement, cannot make removing surface clean; When B>900mm, cast is excessive, and ball blast diversity is excessive, causes the shot of impeller head 31 impellings of opposite layout mutually to be fought each other, and causes great waste, and thin sheet surface there will be dark side, does not reach requirement.Finally, in order to make every group of impeller head 31 upper and lower, left and right hitting dynamics consistent, the residual stress of cancelling out each other, except meeting two parameters above, also will regulate confession ball valve above, makes the consistent for ball amount of four impeller heads 31.
With same method, arrange continuously several groups of same impeller heads, thin plate cleaning speed can improve greatly.
It should be noted that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (8)
1. a thin plate wheel abrator, is characterized in that: comprises,
Blow ball device, be arranged at one end of described thin plate wheel abrator, in order to blow the residue left behind after ball blast off;
Longitudinal spiral conveyer, its one end is connected with the ball material outlet of super shot blasting cleaning chamber; And,
Super shot blasting cleaning chamber, is provided with plural platform impeller head on its outer wall, described impeller head is set to become X ° with the impelling angle of workpiece, and meets 25 °≤X °≤35 °; Meanwhile, two relative impeller heads are set and apart from thin plate length, are respectively A, B, and meet A=B+40, wherein 700mm≤B≤900mm.
2. thin plate wheel abrator according to claim 1, is characterized in that: four impeller heads are installed on the outer wall of described super shot blasting cleaning chamber, and four described each two tablecloths of impeller head minute left and right are put.
3. thin plate wheel abrator according to claim 1, it is characterized in that: described super shot blasting cleaning chamber is multicell assembly, by main chamber's body and concubine body, formed, described impeller head is arranged on the outer wall of main chamber's body, the both sides, front and back of main chamber's body are concubine body, concubine body be closed chamber body and in be provided with steel plate and multilayer rubber curtain and shield.
4. thin plate wheel abrator according to claim 1, is characterized in that: described impeller head comprises: impeller, motor, shot wheel, orienting cover, blade, lead ball pipe and guard shield; Described orienting cover is fixed in guard shield and has a window; The inside of orienting cover is installed with shot wheel, has an entrance and four windows on described shot wheel; Describedly lead the side that ball pipe is positioned at guard shield, and lead one end of ball pipe and this entrance of shot wheel is connected, the other end of leading ball pipe connects for ball system; The opposite side of described guard shield is provided with impeller, and a plurality of blades are installed on described impeller, and Leaf positional distribution is in the periphery of orienting cover; Impeller is connected with the output shaft of motor, and by this vane rotary of Motor Drive.
5. thin plate wheel abrator according to claim 1, is characterized in that: described impeller is connected by conjoint disk with the output shaft of motor, and seal disc is also installed between conjoint disk and motor; In described guard shield, be also provided with for preventing the wear plate of ball blast excessive damage guard shield, wear plate comprise be positioned at guard shield inside top top backplate, be positioned at the side guard plate of side inside guard shield and be positioned at the end face protective plate of guard shield inner side end.
6. thin plate wheel abrator according to claim 1, is characterized in that: described thin plate wheel abrator also comprises: separation, time ball chamber, lift cylinder and high pressure back blowing machine; Described time ball chamber is arranged at the lower end of described blowing device; Described lift cylinder is connected with described high pressure back blowing machine.
7. a method for cleaning that utilizes thin plate wheel abrator as claimed in claim 1 to carry out, is characterized in that: comprises,
The impelling angle X ° of impeller head to workpiece is set, and meets 25 °≤X °≤35 °;
Two relative impeller heads are respectively A, B apart from thin plate length, and meet A=B+40, wherein 700mm≤B≤900mm;
Regulate the confession ball valve above impeller head, make the consistent for ball amount of impeller head.
8. method for cleaning according to claim 7, is characterized in that: two that described impeller head is relative are one group and arrange.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310547237.7A CN103567881B (en) | 2013-11-06 | 2013-11-06 | A kind of thin plate wheel abrator and method |
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| CN201310547237.7A CN103567881B (en) | 2013-11-06 | 2013-11-06 | A kind of thin plate wheel abrator and method |
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Cited By (3)
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| CN104044081A (en) * | 2014-05-29 | 2014-09-17 | 盐城市丰特铸造机械有限公司 | Shot-blast cleaning apparatus and processing technology for thin plates |
| CN108972359A (en) * | 2018-08-16 | 2018-12-11 | 芜湖鸣人热能设备有限公司 | Boiler plate shot-blast unit |
| CN111958497A (en) * | 2020-09-01 | 2020-11-20 | 江苏大学 | Shot blasting method for hard rock cutter ring of shield tunneling machine |
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| CN111958497A (en) * | 2020-09-01 | 2020-11-20 | 江苏大学 | Shot blasting method for hard rock cutter ring of shield tunneling machine |
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| CN103567881B (en) | 2016-09-14 |
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