CN104359781A - Blade wear resistance test method and device - Google Patents
Blade wear resistance test method and device Download PDFInfo
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- CN104359781A CN104359781A CN201410713934.XA CN201410713934A CN104359781A CN 104359781 A CN104359781 A CN 104359781A CN 201410713934 A CN201410713934 A CN 201410713934A CN 104359781 A CN104359781 A CN 104359781A
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Abstract
The invention provides a blade wear resistance test method and device. The device comprises a shot blasting chamber for mounting a blade, a shot blasting device which is located at one side of the shot blasting chamber and is connected with the shot blasting chamber by a pipeline, and a shot material conveying device located above the shot blasting chamber, wherein the shot blasting device comprises nozzles, and the shot blasting chamber comprises a box body; two nozzles are arranged, wherein one nozzle is a sand shot nozzle, and the other nozzle is a pill nozzle; a worktable is arranged at the bottom of the box body and is provided with nozzle clamps and a blade clamp; two groups of nozzle clamps are arranged, wherein one group is a sand blasting clamp, and the other group is a shot blasting clamp; a sand leaking plate is arranged at the lower part of the worktable, and a pill recycling device is arranged at the lower end of the sand leaking plate; and the pill recycling device is connected with the shot material conveying device. According to the device, alternative blasting of two blasting materials, the automatic rotation of a test piece, the adjustment of the blasting speed and time of a shot blasting machine and the like can be finished under the control of an industrial control computer, and a series of test methods for detecting the blade wear resistance are formed by the matching of the processes.
Description
Technical field
The present invention relates to surface of the work grinding technology field, especially relate to a kind of test method and test unit of blade resistance to abrasion.
Background technology
The principle of work of impeller head is that ball material enters into shot wheel and orienting cover by stream ball pipe, after being accelerated by shot wheel, ball material flows out from orienting cover window and arrives blade, under centrifugal action, ball material is dished out at a high speed, hit on surface of the work, to reach the object of surface of the work cleaning and strengthening.In above process, the rubbing wear form of blade and ball material is impact friction wearing and tearing, and ball material imposes hitting power and scouring force to blade, causes the material internal Crack Extension of blade surface, and material local shedding runs off, and causes leaf weight to lose.In high-speed rotation process, eight blades cause transient equilibrium unstability because of quality inequality, thus bring machine vibration and noise to increase, so the resistance to abrasion of blade evaluates the important indicator in blade serviceable life.And when clearing up foundry goods, because cast(ing) surface is stained with much silica sand, recycle in process at ball material, metal bullet and the silica sand with acute angle can act on blade, the wearing and tearing of speeding-up blade simultaneously.Blade in use, after real work longer a period of time, need determine its wear out failure situation by the Vibration Condition estimating and observe impeller head, detects its resistance to abrasion height and to expend time in length, and can not its resistance to abrasion index of quantitative evaluation.Therefore, test method and the test unit of developing the wearing and tearing of a kind of novel pilot blade impact friction is needed.
Summary of the invention
The object of the present invention is to provide a kind of test method of in shorter experimental period, the resistance to abrasion of shot blasting device blades being evaluated and device, its practical working situation is simulated by test unit during test, and then reach the object of evaluation, the technical scheme adopted is: a kind of blade wear test device, comprise the wheel abrator cabinet (1) for installing blade, be positioned at wheel abrator (1) side, the wheel abrator (2) be connected with wheel abrator cabinet (1) pipeline, and be positioned at the ball material conveying device (3) of wheel abrator cabinet (1) top, wheel abrator (2) comprises nozzle (31), it is characterized in that: described wheel abrator cabinet (1) comprises casing (11), described nozzle has two, one is sand ball nozzle, one is bullet nozzle, be provided with worktable in the bottom of casing (11), worktable is provided with nozzle fixture (19) and blade fixture, nozzle fixture is provided with two groups, and one group is sandblasting fixture, another is organized is shot-peening fixture, the bottom of worktable is for leaking sand plate (16), and be bullet recover (17) in the lower end of leakage sand plate (16), bullet recover (17) is connected with ball material conveying device (3).
Technical characteristic of the present invention also has: often organize described nozzle fixture (19) and comprise dop (32), it is upper also just to described blade that described nozzle (31) is contained in dop (32), and dop (32) is connected with head-shaking motor (33).
Technical characteristic of the present invention also has: described blade fixture (20) comprises the chuck of top for clamping blade, also comprises the motor being connected, being positioned at blade fixture bottom with chuck.
Technical characteristic of the present invention also has: described blade fixture totally two, lays respectively at the both sides of blade.
Technical characteristic of the present invention also has: described ball material conveying device (3) comprises chapelet, described chapelet comprises the slide carriage (18) be connected with bullet recover (17), the hopper (66) be connected with slide carriage (18), hopper (66) is connected on belt (64), and belt (64) surrounds on upper belt pulley (63) and bottom pulley (61).
Technical characteristic of the present invention also has: described ball material conveying device also comprises shot-sand separator, described shot-sand separator is positioned at the upper end of described chapelet and matches with hopper, described shot-sand separator comprises feeding mouth (67), the sand ball storehouse (69) be all communicated with feeding mouth (67) and bullet storehouse (70), bullet storehouse (70) lower end is practiced logical by the feeding mouth of defeated ball pipe and described wheel abrator, described sand ball storehouse (69) is connected with sand ball storehouse, baffle plate (68) is provided with between sand ball storehouse (69) and bullet storehouse (70), described shot-sand separator also comprises the air channel be communicated with feeding mouth (67).
Technical scheme of the present invention also has: a kind ofly adopt the test method that described in claim 1, blade wear test device carries out, and step is:
1) blade cleaned up is weighed, and record;
2) by blade clamping in the wheel abrator cabinet (1) of test unit;
3) two blade fixtures (20) are all rotated with the velocity reversal of 10 revolutions per seconds, and the sand ball sprayed respectively in two nozzles and bullet alternately impact blade, and the duration is 30 minutes; The sand ball of ejection and bullet enter in bullet recover (17) through leaking sand plate (16), the bottom of chapelet is entered into by slide carriage (18), after bullet and sand ball are promoted to top with the speed of 10m/ second by belt (64), sand ball enters sand ball storehouse (69), and bullet enters bullet storehouse (70);
4) take out blade after shutting down, weigh after cleaning up, calculate relative wear rate according to the loss in weight;
5) above-mentioned steps 2 is repeated) and 3), until leaf weight loss 20% detected, record blade holds stricken T.T., and test completes.
Technical characteristic of the present invention also has: described sand ball is 100 object silica sands, and described bullet is the metal bullet of 0.4mm.
Beneficial effect of the present invention is: this device detects the resistance to abrasion of blade by twin-jet nozzle, two ball material, and automatic imitation blade withstands shocks the overall process of rubbing wear, and detecting reliability is high, security good, efficiency is high, cost is low; This apparatus structure is compact, easy to maintenance, can require adjust according to difference, thus add the applicability of device itself, dirigibility and compatibility in conjunction with program; Under blade rotary state, two nozzles, two kinds of ball material are to the alternately impinge of blade surface, both can ensure spraying evenly of leaf assay face, and can better simulate again the friction and wear behavior under different impact material; The test method energy real simulation blade flushing corrosion wear process completed by test unit, analyze abrasion condition at regular time and quantity, the detection for blade resistance to abrasion provides detection foundation.
Accompanying drawing explanation
Fig. 1 is the general assembly front elevation of the embodiment of the present invention,
Fig. 2 is the wheel abrator cabinet front elevation of the embodiment of the present invention,
Fig. 3 is the wheel abrator cabinet vertical view of the embodiment of the present invention,
Fig. 4 is the nozzle fixture front view of the embodiment of the present invention,
Fig. 5 is the chapelet front elevation of the embodiment of the present invention,
Fig. 6 is the shot-sand separator front elevation of the embodiment of the present invention.
Wherein: 1 wheel abrator cabinet, 2 wheel abrators, 3 ball material conveying devices, 4 dust arresters, 5 industrial control computers, 11 casings, 12 dust removal port, 13 view windows, 14 hatch doors, 15 worktable, 16 leak sand plate, 17 bullet recovers, 18 slide carriages, 19 nozzle fixtures, 20 blade fixtures, 31 nozzles, 32 dops, 33 head-shaking motors, 34 supports, 35 baffle plates, 61 bottom pulley, 62 casings, 63 upper belt pulleys, 64 belts, 65 motors, 66 hoppers, 67 feeding mouths, 68 baffle plates, 69 sand ball storehouses, 70 bullet storehouses.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
A kind of blade wear test device, this device comprises mechanical system and control system, and mechanical system comprises: wheel abrator cabinet 1, wheel abrator 2, ball material conveying device 3, dust arrester 4; Control system comprises industry control device computer 5.
As shown in Figures 2 and 3, wheel abrator cabinet 1 comprises: casing 11, dust removal port 12, observation panel 13, hatch door 14, worktable 15, leaks sand plate 16, bullet recover 17, slide carriage 18, nozzle fixture 19, blade fixture 20.
Hatch door 14 is in wheel abrator cabinet 1 side, and test front opening clamping blade, closes during shot-peening.Dust removal port 12 on wheel abrator cabinet 1 top, and be positioned at hatch door 14 face side, dust removal port 12 is slot, is the suction outlet of the dust that shot-peening produces.View window 13, on hatch door 14 top, is square window, when cloudburst test is carried out, can be observed the wear condition of blade by window.Wheel abrator 2 is external, can change wheel abrator, improve the versatility of test unit according to the requirement of shot-peening.Worktable 15, bottom casing 11, is square platy structure.Object is support nozzle fixture 19 and blade fixture 20.Leaking sand plate 16 and be positioned at worktable 15 bottom, is the square plate with hollow hole, and the bullet that shot-peening can be sprayed and sand ball leak down, and enter in the bullet recover 17 of below.Bullet recover 17 is positioned at the lower end of leaking sand plate 16, is cone tank structure.Its object is to the osculum place for the bullet leaked down and sand ball being concentrated on bottom, and delivered to the bottom of chapelet by the slide carriage 18 of lower end.
The nozzle 31 of described wheel abrator 2 is provided with two, and one is sand ball nozzle, and one is bullet nozzle.Nozzle 31 is cylinder-like structure, is the delivery outlet of bullet and sand ball.The present invention's material spray used is bullet and two kinds, sand ball, and two nozzles 31 are responsible for a kind of injection of material spray respectively, thus reach compound material spray spray effect, make test more meet real blade wear situation.
As shown in Figure 4, spray nozzle fixture 19 comprises dop 32, head-shaking motor 33, support 34, baffle plate 35.
Dop 32, in the top of whole fixture, is the barrel-like structure of strap bolt.Barrel-like structure upper end is two bolts, and its object is to nozzle 31 to go deep in bucket, pretension bolt plays fixing, has the feature of conveniently assemble and disassemble.Head-shaking motor 33 is positioned at dop 32 bottom, and be positioned on support 34, in shot-peening process, head-shaking motor 33 carries out the rotation of positive and negative both direction under the control of industrial control computer 5 by certain hour, drive dop 32 to move up and down, thus nozzle 31 completes head shaking movement.Head-shaking motor 33 motion state of each nozzle fixture 19 is just the opposite, to ensure that, at a nozzle 31 when carrying out shot-peening to test specimen, another nozzle impact position is different, thus completes the process alternately sprayed.Baffle plate 35 is positioned at the close blade side of support 34, is tilt flat plate, can block the material spray that nozzle 31 sprays, prevent the wearing and tearing to component such as support 34 grade.
As shown in Figure 1, blade fixture 20 comprises the chuck of topmost portion, and the motor of bottom, and during work, motor rotates by certain speed under the control of industrial control computer 5.Thus more coverage is wider when making blade spray.
As shown in Fig. 1, Fig. 5 and Fig. 6, bullet conveying device 3 comprises: chapelet; Shot-sand separator; Bellows.
As shown in Figure 5, chapelet comprises: bottom pulley 61, casing 62, upper belt pulley 63, belt 64, motor 65, hopper 66.During work under the drive of motor 65, upper belt 63 rotates, and simultaneously the bullet that slide carriage 18 can be sent here of hopper 66 and sand ball scoop up and load hopper 66, continue to rise by belt 64, play the effect promoting bullet and sand ball, and arrive topmost, bullet and sand ball are poured in shot-sand separator.
As shown in Figure 6, shot-sand separator comprises: feeding mouth 67, baffle plate 68, sand ball storehouse 69, bullet storehouse 70.During work, bellows produce wind-force, and under the traction of baffle plate 68 and wind-force, because sand ball is different from bullet density, sand ball and the drop zone of bullet enter different storehouses and be separated.Bullet falls into bullet storehouse 70, and bullet storehouse 70 is porose below, is connected, completes bullet cyclic process by defeated ball pipe with the feeding mouth of wheel abrator.Sand ball falls into sand ball storehouse 69, and lower end is porose, is connected with the feeding mouth of wheel abrator by defeated ball pipe, completes the cyclic process of sand ball.
According to said apparatus, the invention provides the test method that the two ball material of a kind of twin-jet nozzle detects blade resistance to abrasion, can realize detecting blade resistance to abrasion.
Detection method step is:
Blade is clean with the alcohol washes of 70%, electronic balance is weighed, and record, then open hatch door 14, blade is installed in the square groove of blade fixture 20, fixes with claw clamping, then close hatch door 14.
Survey the technique of blade abrasion resistance according to regular inspection, select the pattern on industrial control computer: single ball material list nozzle pattern; Single ball material twin-jet nozzle pattern; The two ball material pattern of twin-jet nozzle in the two ball material pattern of twin-jet nozzle.Click and run.
According to program setting, controlled by industrial control computer 5, motor in blade fixture 20 rotates with the speed of 10 revolutions per seconds, the head-shaking motor motion of left nozzle fixture, left side head-shaking motor rotates forward, drive left nozzle rotates, now wheel abrator operates under the control of industrial control computer, 100 object silica sands are sprayed with the speed of 70 meter per seconds through left nozzle, beat on blade, the meanwhile head-shaking motor reversion of right nozzle fixture, right nozzle is driven upwards to rotate, now the metal bullet of 0.4mm sprays with the speed of 70 meter per seconds by wheel abrator, owing to upwards rotating, bullet can not be beaten on blade.Through the Impulse time of 5 minutes, under the control of industrial control computer, the head-shaking motor in the nozzle fixture of two, left and right reverses respectively, and left nozzle is upwards rotated, and right nozzle rotates.Make the metal bullet of right nozzle beat on blade, the silica sand of left nozzle hits less than blade simultaneously.Hocket 6 times, 30 minutes time, system stops.In the process, hit bullet out and sand ball drains in bullet recover 17 through leaking sand plate 16, under the guiding of slide carriage 18, the bullet assembled and sand ball are delivered to the bottom of chapelet, the motor 65 of chapelet rotates, band movable belt pulley 63 rotates, and then belt 64 moves with the speed of 10 meter per seconds, bullet and sand ball can scoop up by hopper 65 above by drive, and then promote together, the upper end of doing arriving chapelet is unloaded, what fall into shot-sand separator enters ball mouth 67, because bullet is different with the density of sand ball, under the wind speed traction of baffle plate 68 and 20 meter per second, bullet falls into bullet storehouse 70.Sand ball falls into sand ball storehouse 69, and the outlet respectively through lower end, storehouse is delivered in wheel abrator, completes being separated and circulation of bullet and sand ball.In whole testing process, the process of dust is completed by external cleaner 4, it, by the dust removal port sucking-off of the dust in wheel abrator cabinet through upper end, enters in cyclone separator and carries out primary dust removing, filter out larger particle, entering in dust cleaning case, carrying out two-stage dust removal and discharging.
Then open hatch door 14, take off blade, blade is clean with the alcohol washes of 70%, electronic balance is weighed, observes and record, calculate relative wear rate according to the loss in weight simultaneously.
Repeat the first step, until measure leaf weight loss 20%, blade rejection can be thought.The impact wear time that record now experiences altogether.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited only to above-mentioned citing, and the change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement, also belong to protection scope of the present invention.
Claims (8)
1. a blade wear test device, comprise the wheel abrator cabinet (1) for installing blade, the wheel abrator (2) be positioned at wheel abrator (1) side, being connected with wheel abrator cabinet (1) pipeline, and be positioned at the ball material conveying device (3) of wheel abrator cabinet (1) top, wheel abrator (2) comprises nozzle (31), it is characterized in that: described wheel abrator cabinet (1) comprises casing (11), described nozzle has two, one is sand ball nozzle, and one is bullet nozzle; Be provided with worktable in the bottom of casing (11), worktable is provided with nozzle fixture (19) and blade fixture, nozzle fixture is provided with two groups, and one group is sandblasting fixture, another is organized is shot-peening fixture; The bottom of worktable is for leaking sand plate (16), and be bullet recover (17) in the lower end of leakage sand plate (16), bullet recover (17) is connected with ball material conveying device (3).
2. according to blade wear test device according to claim 1, it is characterized in that: often organize described nozzle fixture (19) and comprise dop (32), it is upper also just to described blade that described nozzle (31) is contained in dop (32), and dop (32) is connected with head-shaking motor (33).
3. according to blade wear test device according to claim 2, it is characterized in that: described blade fixture (20) comprises the chuck of top for clamping blade, also comprise the motor being connected, being positioned at blade fixture bottom with chuck.
4. according to blade wear test device according to claim 3, it is characterized in that: described blade fixture totally two, lays respectively at the both sides of blade.
5. according to blade wear test device according to claim 2, it is characterized in that: described ball material conveying device (3) comprises chapelet, described chapelet comprises the slide carriage (18) be connected with bullet recover (17), the hopper (66) be connected with slide carriage (18), hopper (66) is connected on belt (64), and belt (64) surrounds on upper belt pulley (63) and bottom pulley (61).
6. according to blade wear test device according to claim 5, it is characterized in that: described ball material conveying device also comprises shot-sand separator, described shot-sand separator is positioned at the upper end of described chapelet and matches with hopper, described shot-sand separator comprises feeding mouth (67), the sand ball storehouse (69) be all communicated with feeding mouth (67) and bullet storehouse (70), bullet storehouse (70) lower end is practiced logical by the feeding mouth of defeated ball pipe and described wheel abrator, described sand ball storehouse (69) is connected with sand ball storehouse, baffle plate (68) is provided with between sand ball storehouse (69) and bullet storehouse (70), described shot-sand separator also comprises the air channel be communicated with feeding mouth (67).
7. adopt the test method that described in claim 1, blade wear test device carries out, step is:
1) blade cleaned up is weighed, and record;
2) by blade clamping in the wheel abrator cabinet (1) of test unit;
3) two blade fixtures (20) are all rotated with the velocity reversal of 10 revolutions per seconds, and the sand ball sprayed respectively in two nozzles and bullet alternately impact blade, and the duration is 30 minutes; The sand ball of ejection and bullet enter in bullet recover (17) through leaking sand plate (16), the bottom of chapelet is entered into by slide carriage (18), after bullet and sand ball are promoted to top with the speed of 10m/ second by belt (64), sand ball enters sand ball storehouse (69), and bullet enters bullet storehouse (70);
4) take out blade after shutting down, weigh after cleaning up, calculate relative wear rate according to the loss in weight;
5) above-mentioned steps 2 is repeated) and 3), until leaf weight loss 20% detected, record blade holds stricken T.T., and test completes.
8. according to the test method that blade wear test device according to claim 7 carries out, it is characterized in that: described sand ball is 100 object silica sands, described bullet is the metal bullet of 0.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410713934.XA CN104359781A (en) | 2014-11-28 | 2014-11-28 | Blade wear resistance test method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410713934.XA CN104359781A (en) | 2014-11-28 | 2014-11-28 | Blade wear resistance test method and device |
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| Publication Number | Publication Date |
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| CN104359781A true CN104359781A (en) | 2015-02-18 |
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|---|---|---|---|
| CN201410713934.XA Pending CN104359781A (en) | 2014-11-28 | 2014-11-28 | Blade wear resistance test method and device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931349A (en) * | 2018-04-09 | 2018-12-04 | 南京航空航天大学 | For simulating whirling test device in the hard object impact test of high speed |
| CN109975148A (en) * | 2019-01-15 | 2019-07-05 | 中信戴卡股份有限公司 | A kind of automatic sand erosion device |
| CN110132778A (en) * | 2019-04-16 | 2019-08-16 | 浙江理工大学 | A kind of experimental provision for simulating eddy channel blade wear measurement |
| CN111781079A (en) * | 2020-07-21 | 2020-10-16 | 山东开泰抛丸机械股份有限公司 | Novel abrasive material performance test testing machine |
-
2014
- 2014-11-28 CN CN201410713934.XA patent/CN104359781A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931349A (en) * | 2018-04-09 | 2018-12-04 | 南京航空航天大学 | For simulating whirling test device in the hard object impact test of high speed |
| CN109975148A (en) * | 2019-01-15 | 2019-07-05 | 中信戴卡股份有限公司 | A kind of automatic sand erosion device |
| CN109975148B (en) * | 2019-01-15 | 2024-01-26 | 中信戴卡股份有限公司 | Automatic sand grain wearing and tearing device |
| CN110132778A (en) * | 2019-04-16 | 2019-08-16 | 浙江理工大学 | A kind of experimental provision for simulating eddy channel blade wear measurement |
| CN111781079A (en) * | 2020-07-21 | 2020-10-16 | 山东开泰抛丸机械股份有限公司 | Novel abrasive material performance test testing machine |
| CN111781079B (en) * | 2020-07-21 | 2023-08-25 | 山东开泰抛丸机械股份有限公司 | Abrasive material performance test machine |
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Application publication date: 20150218 |