CN112808367B

CN112808367B - Detection method for improving wear-resisting test precision

Info

Publication number: CN112808367B
Application number: CN202011619734.XA
Authority: CN
Inventors: 王善波; 逄蕾; 王宝磊; 李光宏
Original assignee: Qingdao Fangyuan Construction Engineering Quality Inspection Co ltd
Current assignee: Qingdao Fangyuan Construction Engineering Quality Inspection Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2022-03-11
Anticipated expiration: 2040-12-30
Also published as: CN112808367A

Abstract

The application relates to a detection method for improving the precision of a wear-resistant test, which belongs to the technical field of wear-resistant tests of ground materials and comprises the following steps: s1, installing an abrasion resistance tester; s2, pouring abrasive into the collecting box through the material receiving port by a tester, shaking the collecting box, and pumping the abrasive on the second screen into the abrasive box by the material suction pump; s3, placing the test piece on the push plate by a tester, and sliding the push plate to enable the test piece to be close to the grinding wheel; s4, controlling the driving assembly to pull the valve plate to open the feed opening, rotating the grinding wheel, controlling the vibrating assembly to vibrate the material screening frame, controlling the material suction pump to continuously pump the abrasive materials in the collecting box into the abrasive material box, and pouring the abrasive materials into the collecting box when the abrasive materials in the collecting box are too small; and S5, stopping all actions after a period of time, taking out the test piece, and detecting the surface abrasion condition of the test piece.

Description

Detection method for improving wear-resisting test precision

Technical Field

The invention relates to the technical field of wear-resistant tests of ground materials, in particular to a detection method for improving the precision of a wear-resistant test.

Background

At present, the wear resistance is an important property of building materials such as concrete, stone, cement mortar and the like, and because the actual parameters and design data of the building materials can be different due to different materials and process errors in the actual production process, part of a test piece needs to be taken out of an actually manufactured product, and the real data of the test piece is tested to obtain the wear resistance of the test piece. And (3) detecting that a wear-resistant testing machine is required to be used, rubbing the test piece through the steel wheel and the grinding material, and then detecting the surface wear condition of the test piece to obtain the wear-resistant data of the test piece.

The above prior art solutions have the following drawbacks: when the abrasion resistance testing machine is used for abrasion resistance tests, due to the fact that the abrasive materials are different in size, the test results can be deviated, and although a method for calibrating the test results through multiple tests is adopted at present, the final test results still can be deviated.

Disclosure of Invention

In order to improve the precision of the wear-resistant test, the application provides a detection method for improving the precision of the wear-resistant test.

The detection method for improving the precision of the wear-resistant test adopts the following technical scheme:

a detection method for improving the precision of a wear-resistant test comprises the following steps:

s1, installing an abrasion resistance tester;

the abrasion resistance testing machine comprises a frame, a wheel seat is fixedly connected to the frame, a grinding wheel is rotatably connected to the wheel seat, a push plate is slidably connected to the position, close to the grinding wheel, of the frame, the push plate slides in a direction close to or away from the grinding wheel, a blanking port is formed in the position, corresponding to one side, close to the push plate, of the grinding wheel, a support is fixedly connected between the frame and the grinding wheel, a grinding box is fixedly connected to the support, a blanking port is formed in the bottom of the grinding box, corresponding to the position right above the blanking port, a feeding port is formed in the top of the grinding box, an inserting groove is formed in the position, close to the blanking port, of the grinding box, a valve plate is slidably connected in the inserting groove, the grinding box is connected with a driving assembly for driving the valve plate to slide in the width direction of the grinding box, a plurality of springs are fixedly connected to the position, corresponding to the blanking port, the other end of each spring is fixedly connected with a screening frame, and a first screen is fixedly connected in the screening frame, the screening frame is connected with a vibration assembly for driving the screening frame to vibrate, a collecting box is placed at a position, corresponding to the lower position of the blanking port, of the rack, a material receiving port is formed in the top of the collecting box, a second screen is fixedly connected in the collecting box, the second screen covers the cross section of the inside of the collecting box, a material suction pipe is fixedly connected at a position, corresponding to the upper position of the second screen, of the collecting box, the material suction pipe is fixedly connected with a material suction pump, the other end of the material suction pipe is fixedly connected to the grinding box, and the material suction pipe extends into the grinding box;

s2, pouring abrasive into the collecting box through the material receiving port by a tester, shaking the collecting box, and pumping the abrasive on the second screen into the abrasive box by the material suction pump;

s3, placing the test piece on the push plate by a tester, and sliding the push plate to enable the test piece to be close to the grinding wheel;

s4, controlling the driving assembly to pull the valve plate to open the feed opening, rotating the grinding wheel, controlling the vibrating assembly to vibrate the material screening frame, controlling the material suction pump to continuously pump the abrasive materials in the collecting box into the abrasive material box, and pouring the abrasive materials into the collecting box when the abrasive materials in the collecting box are too small;

and S5, stopping all actions after a period of time, taking out the test piece, and detecting the surface abrasion condition of the test piece.

Through adopting above-mentioned scheme, in the process of the test, the abrasive material can be at first by the fine abrasive material of second screen cloth sieve fall when getting into the collecting box, then by the suction pump incasement of drawing material, the abrasive material is when falling from the abrasive material case, through first screen cloth, the continuous vibration of first screen cloth is stayed the screen cloth with the abrasive material of crossing thick on, make final abrasive material thickness unanimous with the test piece contact, first screen cloth vibration can guarantee that the unloading is smooth, reduce the possibility that the abrasive material blockked up first screen cloth, make the new abrasive material that the experimenter added in the collecting box in the process of the test also can be unanimous with the abrasive material thickness before, effectively improve test result precision.

Preferably, step S1 further includes:

the drive assembly comprises a servo motor fixedly connected to the grinding material box, an output shaft of the servo motor is fixedly connected with a speed reducer, a threaded sleeve is fixedly connected with the speed reducer, the threaded sleeve is arranged along the width direction of the grinding material box, a threaded rod is connected to the inner thread of the threaded sleeve, and the threaded rod is fixedly connected to the valve plate.

Through adopting above-mentioned scheme, servo motor passes through the reduction gear and drives the thread bush and rotate, and the thread bush drives the threaded rod and removes along abrasive material case width direction to drive the valve plate and remove, servo motor easy control can accurate control valve plate displacement after slowing down through the reduction gear, thereby accurate control feed opening degree of opening.

Preferably, step S1 further includes;

a height sensor is fixedly connected in the grinding box, and the rack is connected with a control system;

step S4 further includes;

the height sensor detects the height of the abrasive in the abrasive box and sends the height value to the control system, an experimenter controls the servo motor to rotate forwards to open the feed opening through the control system, the control system judges whether the received height value is higher than a preset value, and when the height value is higher than the preset value, the control system controls the servo motor to rotate reversely to enable the valve plate to stretch into the abrasive box for a distance.

Through adopting above-mentioned scheme, control system can be automatically according to the abrasive material height in the grinding feed box control the degree of opening of feed opening, reduces the degree of opening of feed opening when the abrasive material is too much, avoids piling up too much because of the abrasive material and makes the abrasive material blanking speed too fast.

Preferably, step S4 further includes:

when the height value received by the control system is higher than the preset value, the control system controls the servo motor to reversely rotate for setting the number of turns when the height value is increased by a set value.

By adopting the scheme, the control system can determine the opening degree of the feed opening according to the specific height of the abrasive in the abrasive box, and the test detection precision is further increased.

Preferably, step S1 further includes:

the vibration subassembly includes the driving motor on the fixedly connected with support, driving motor's output shaft fixedly connected with cam, and the support is close to sieve material frame position department sliding connection has the striking rod, and the striking rod slides along the direction of being close to or keeping away from sieve material frame, and the striking rod is close to cam one end fixedly connected with drive frame, and inside cam butt in drive frame, the striking rod can the butt on sieve material frame.

Through adopting above-mentioned scheme, driving motor drives the cam and rotates, and the cam drives the drive frame and makes a round trip to rock, and the drive frame drives the striking rod and constantly strikes sieve material frame, realizes the vibration of first screen cloth.

Preferably, step S1 further includes:

the cleaning opening has been seted up to sieve material frame one side, and sieve material frame corresponds cleaning opening position department fixedly connected with and cleans the pipe, cleans pipe one end and covers the cleaning opening setting, and first screen cloth is by being close to cleaning opening one end to the other end tilt up setting.

Through adopting above-mentioned scheme, first screen cloth can be with the too big abrasive material of granule from the scavenge port discharge sieve material frame of vibration in-process, avoids the big granule abrasive material on the first screen cloth too much, blocks first screen cloth.

Preferably, step S1 further includes:

clean the pipe and keep away from sieve material frame one end fixedly connected with box, clean pipe and the inside intercommunication of box, it is connected with initiative crushing roller and driven crushing roller to rotate in the box, the mutual butt of initiative crushing roller and driven crushing roller, the box is close to initiative crushing roller position department fixedly connected with crushing motor, the output shaft fixedly connected with driving gear of crushing motor, driving gear fixed connection is on initiative crushing roller, driven crushing roller fixedly connected with driven gear, driving gear and driven gear intermeshing, bottom half fixedly connected with feed back pipe, feed back pipe other end fixed connection is in the collection box top, inside feed back pipe intercommunication box and the collecting box.

Through adopting above-mentioned scheme, the abrasive material of large granule can fall into broken incasement, and broken motor drives the driving gear and rotates, and the driving gear drives driven gear and rotates for initiative crushing roller and driven crushing roller rotate relatively, and the abrasive material of broken large granule, the abrasive material after the breakage gets into reuse in the collecting box.

Preferably, step S1 further includes;

a waste material opening is formed in the position, close to the bottom, of the collecting box, a sweeping plate is connected to the inside of the collecting box in a sliding mode, the sweeping plate slides in the direction close to or far away from the waste material opening, bristles are fixedly connected to the bottom of the sweeping plate, and the bristles abut against the bottom of the collecting box;

step S5 further includes;

the bristles are slid to sweep the abrasive material at the bottom of the collecting box out of the cleaning opening.

By adopting the scheme, a tester can sweep the abrasive at the bottom of the collecting box out of the waste port by the bristles through sliding the sweeping plate.

In conclusion, the invention has the following beneficial effects:

1. in the test process, the abrasive material can be at first by the fine abrasive material of second screen cloth sifting off when getting into the collecting box, then by the suction pump incasement of drawing material, the abrasive material is when falling down from the abrasive material case, through first screen cloth, the continuous vibration of first screen cloth is stayed the screen cloth with the abrasive material of crossing thick on, make finally unanimous with the abrasive material thickness of test piece contact, first screen cloth vibration can guarantee that the unloading is smooth, reduce the possibility that the abrasive material blockked up first screen cloth, make the new abrasive material that the experimenter added in the collecting box in the test process also can be unanimous with the abrasive material thickness before, effectively improve test result precision.

Drawings

FIG. 1 is a flow chart of a detection method for improving the accuracy of a wear test according to an embodiment of the present disclosure;

FIG. 2 is a schematic overall structure diagram of an abrasion tester according to an embodiment of the present application;

FIG. 3 is a cross-sectional view of an abrasive bin, a drop opening, and a collection bin of an embodiment of the present application;

FIG. 4 is a cross-sectional view of a screen frame and vibratory assembly according to an embodiment of the present application;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is a schematic view of a material suction pipe, a cleaning pipe, a box body and a material return pipe in the embodiment of the present application;

FIG. 7 is a cross-sectional view of a waste opening, sweeping plate and bristles according to an embodiment of the present application;

fig. 8 is a schematic view of a crushing drive roller, a crushing driven roller, a driving gear, a driven gear and a crushing motor according to an embodiment of the present application.

In the figure, 1, a frame; 11. a wheel seat; 12. a grinding wheel; 13. an abrasive motor; 14. pushing the plate; 15. a vertical plate; 16. adjusting the bolt; 17. a blanking port; 2. a support; 21. a grinding box; 211. a feeding port; 212. a feeding port; 213. a slot; 214. a valve plate; 22. a drive assembly; 221. a servo motor; 222. a speed reducer; 223. a threaded sleeve; 224. a threaded rod; 23. a material screening frame; 231. a spring; 232. a first screen; 233. a cleaning port; 234. cleaning the pipe; 2341. a box body; 2342. an active crushing roller; 2343. a driven crushing roller; 2344. a driving gear; 2345. a driven gear; 2346. a crushing motor; 24. a vibrating assembly; 241. a drive motor; 242. a cam; 243. a striker bar; 244. a drive frame; 3. a collection box; 31. a material receiving port; 32. a second screen; 33. a material suction pipe; 331. a suction pump; 34. a material return pipe; 35. a waste material port; 36. cleaning the board; 361. brushing; 41. a height sensor.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The embodiment of the application discloses a detection method for improving the precision of a wear-resistant test, as shown in fig. 1, the detection method comprises the following specific steps:

s1, installing an abrasion resistance tester:

as shown in fig. 2 and fig. 3, the abrasion resistance testing machine includes a frame 1, a wheel seat 11 is fixedly connected to the frame 1, and a grinding wheel 12 is rotatably connected to the wheel seat 11. The frame 1 is fixedly connected with an abrasive motor 13 near the grinding wheel 12, and an output shaft of the abrasive motor 13 is fixedly connected to the grinding wheel 12. The position of the frame 1 close to the grinding wheel 12 is connected with a push plate 14 in a sliding manner, the push plate 14 slides along the direction close to or far away from the grinding wheel 12, the position of the frame 1 close to the push plate 14 is fixedly connected with a vertical plate 15, the vertical plate 15 is connected with an adjusting bolt 16 in a threaded manner, the adjusting bolt 16 is arranged along the direction close to or far away from the grinding wheel 12, and the adjusting bolt 16 is rotatably connected to the push plate 14. The frame 1 is provided with a blanking port 17 corresponding to the grinding wheel 12 and close to one side of the push plate 14.

As shown in fig. 3, a support 2 is fixedly connected between the frame 1 and the grinding wheel 12 corresponding to the push plate 14, the support 2 is fixedly connected with a grinding box 21, and a feed opening 211 is formed at the bottom of the grinding box 21 corresponding to a position right above the feed opening 17. The top of the grinding material box 21 is provided with a feeding hole 212.

As shown in fig. 4 and 5, a slot 213 is formed near the feed opening 211 of the grinding box 21, and a valve plate 214 is slidably connected to the slot 213. The drive assembly 22 that grinding box 21 is connected with, drive assembly 22 includes servo motor 221 of fixed connection on grinding box 21, and servo motor 221's output shaft fixedly connected with reduction gear 222, reduction gear 222 fixedly connected with thread bush 223, and thread bush 223 sets up along grinding box 21 width direction, and thread bush 223 female connection has threaded rod 224, and threaded rod 224 fixed connection is in valve plate 214. Servo motor 221 passes through reduction gear 222 and drives threaded sleeve 223 and rotate, and threaded sleeve 223 drives threaded rod 224 and removes along grinding feed box 21 width direction to drive valve plate 214 and remove, servo motor 221 is easy to control, can accurately control valve plate 214 displacement after slowing down through reduction gear 222, thereby accurate control feed opening 211 degree of opening.

As shown in fig. 3 and 4, a plurality of springs 231 are fixedly connected to a position right below the discharging opening 211 of the bracket 2, the other ends of the springs 231 are fixedly connected to the screen frame 23, the first screen 232 is fixedly connected to the inside of the screen frame 23, the screen frame 23 is connected to the vibration assembly 24, the vibration assembly 24 comprises a driving motor 241 fixedly connected to the bracket 2, a cam 242 is fixedly connected to an output shaft of the driving motor 241, an impact rod 243 is slidably connected to a position of the bracket 2 close to the screen frame 23, and the impact rod 243 slides in a direction close to or far away from the screen frame 23. The striking rod 243 is close to one end fixedly connected with drive frame 244 of cam 242, and inside the cam 242 butt drive frame 244, the striking rod 243 can butt on sieve material frame 23. The driving motor 241 drives the cam 242 to rotate, the cam 242 drives the driving frame 244 to shake back and forth, and the driving frame 244 drives the striking rod 243 to continuously strike the screen frame 23, so that the first screen 232 is vibrated.

As shown in fig. 3 and 6, the collecting box 3 is placed at a position below the blanking port 17 corresponding to the rack 1, the top of the collecting box 3 is provided with a receiving port 31, the collecting box 3 is internally and fixedly connected with a second screen 32, the second screen 32 covers the cross section inside the collecting box 3, the collecting box 3 is fixedly connected with a suction pipe 33 at a position above the second screen 32, the suction pipe 33 is fixedly connected with a suction pump 331, the other end of the suction pipe 33 is fixedly connected to the grinding box 21, and the suction pipe 33 extends into the grinding box 21. A height sensor 41 (see fig. 4) is fixedly connected in the grinding material box 21, and the frame 1 is connected with a control system.

As shown in fig. 6 and 7, a waste opening 35 is formed at a position of the collection box 3 near the bottom, a sweeping plate 36 is slidably connected inside the collection box 3, the sweeping plate 36 slides along a direction close to or far away from the waste opening 35, bristles 361 are fixedly connected to the bottom of the sweeping plate 36, and the bristles 361 abut against the bottom of the collection box 3. The tester can sweep the abrasives in the bottom of the collection container 3 out of the waste port 35 with the brush 361 by sliding the sweeping plate 36.

As shown in fig. 6 and 8, a cleaning opening 233 is formed at one side of the screen frame 23, a cleaning pipe 234 is fixedly connected to a position of the screen frame 23 corresponding to the cleaning opening 233, one end of the cleaning pipe 234 is arranged to cover the cleaning opening 233, and the first screen 232 is arranged to be inclined upward from one end close to the cleaning opening 233 to the other end. One end of the cleaning pipe 234, which is far away from the sieve frame 23, is fixedly connected with a box body 2341, and the cleaning pipe 234 is communicated with the interior of the box body 2341. A driving crushing roller 2342 and a driven crushing roller 2343 are rotatably connected to the case 2341, and the driving crushing roller 2342 and the driven crushing roller 2343 are in contact with each other. Box 2341 is close to initiative crushing roller 2342 position fixedly connected with broken motor 2346, broken motor 2346's output shaft fixedly connected with driving gear 2344, driving gear 2344 fixed connection on initiative crushing roller 2342, driven crushing roller 2343 fixedly connected with driven gear 2345, driving gear 2344 and driven gear 2345 intermeshing. The bottom of the box body 2341 is fixedly connected with a material return pipe 34, the other end of the material return pipe 34 is fixedly connected to the top of the collecting box 3, and the material return pipe 34 is communicated with the interior of the box body 2341 and the interior of the collecting box 3. The first screen 232 can discharge the large abrasive particles out of the screen frame 23 through the cleaning opening 233 during the vibration process, so as to prevent the large abrasive particles on the first screen 232 from being too large and blocking the first screen 232.

S2, preparing an abrasive: the tester pours the abrasive into the collection box 3 through the material receiving port 31, shakes the collection box 3, and the material suction pump 331 pumps the abrasive on the second screen 32 into the abrasive box 21.

S3, preparation of a test piece: the test person places the test piece on the push plate 14, and slides the push plate 14 so that the test piece approaches the grinding wheel 12.

S4, carrying out the test: the control driving assembly 22 pulls the valve plate 214 to open the feed opening 211, rotates the grinding wheel 12, controls the vibrating assembly 24 to vibrate the material sieving frame 23, controls the material suction pump 331 to continuously pump the abrasive materials in the collecting box 3 into the abrasive material box 21, and pours the abrasive materials into the collecting box 3 when the abrasive materials in the collecting box 3 are too small. The height sensor 41 detects the height of the abrasive in the abrasive box 21 and sends the height value to the control system, and the experimenter controls the servo motor 221 to rotate forward to open the feed opening 211 through the control system. The control system judges whether the received height value is higher than a preset value. When the height value is higher than the preset value, the control system controls the servo motor 221 to reversely rotate to enable the valve plate 214 to stretch into the grinding material box 21 for a distance, and the control system controls the servo motor 221 to reversely rotate for a set number of turns when the height value is increased by a set value. When the height value is lower than the preset value, the control system does not act.

S5, finishing the test: and stopping all actions after a period of time, taking out the test piece, and detecting the surface abrasion condition of the test piece. After the test, the bristles 361 were slid to sweep the abrasives in the bottom of the collection box 3 out of the cleaning opening 233.

The implementation principle of the detection method for improving the precision of the wear-resistant test in the embodiment of the application is as follows: in the test process, when the abrasive firstly enters the collection box 3, the second screen 32 screens off the fine abrasive, then the abrasive is pumped into the abrasive box 21 by the suction pump 331, when the abrasive falls from the abrasive box 21, the first screen 232 continuously vibrates to leave the coarse abrasive on the screen, so that the thickness of the abrasive finally contacted with the test piece is consistent. The coarse abrasive enters the box body 2341 through the cleaning pipe 234, is crushed by the driving crushing roller 2342 and the driven crushing roller 2343, and then enters the collection box 3 through the material return pipe 34. The first screen 232 vibrates to guarantee that the unloading is smooth, reduces the possibility that the abrasive material blocks up first screen 232 for the tester also can be unanimous with the abrasive material thickness before to the new abrasive material that adds in collecting box 3 in the process of the test, effectively improves the test result precision. The control system can automatically control the opening degree of the feed opening 211 according to the height of the abrasive in the abrasive box 21, reduce the opening degree of the feed opening 211 when the abrasive is too much, and avoid that the abrasive blanking speed is too fast due to the fact that the abrasive is accumulated too much.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. A detection method for improving the precision of a wear-resistant test is characterized by comprising the following steps:

s1, installing an abrasion resistance tester;

the abrasion resistance testing machine comprises a rack (1), a wheel seat (11) is fixedly connected to the rack (1), a grinding wheel (12) is rotatably connected to the wheel seat (11), a push plate (14) which is vertically arranged is slidably connected to the position, close to the grinding wheel (12), of the rack (1), the push plate (14) slides along the direction close to or far away from the grinding wheel (12), a blanking port (17) is formed in the position, close to one side of the push plate (14), of the rack (1) corresponding to the grinding wheel (12), a support (2) is fixedly connected between the rack (1) corresponding to the push plate (14) and the grinding wheel (12), a grinding material box (21) is fixedly connected to the support (2), a blanking port (211) is formed in the position, right above the blanking port (17), a feeding port (212) is formed in the top of the grinding material box (21), a slot (213) is formed near the blanking port (211), and a valve plate (214) is slidably connected to the slot (213), the grinding box (21) is connected with a driving assembly (22) for driving the valve plate (214) to slide along the width direction of the grinding box (21), a plurality of springs (231) are fixedly connected to the position of the support (2) right below the blanking port (211), the other ends of the springs (231) are fixedly connected with a screening frame (23) together, a first screen (232) is fixedly connected in the screening frame (23), the first screen (232) is positioned right below the valve plate (214), the screening frame (23) is connected with a vibration assembly (24) for driving the screening frame (23) to vibrate, a collecting box (3) is placed at the position of the rack (1) right below the blanking port (17), a material receiving port (31) is formed in the top of the collecting box (3), a second screen (32) is fixedly connected in the collecting box (3), the second screen (32) covers the inner cross section of the collecting box (3), a material sucking pipe (33) is fixedly connected to the position of the collecting box (3) right above the second screen (32), the material suction pipe (33) is fixedly connected with a material suction pump (331), the other end of the material suction pipe (33) is fixedly connected to the grinding material box (21), the material suction pipe (33) extends into the grinding material box (21), and one end, extending into the grinding material box (21), of the material suction pipe (33) is positioned above the first screen (232);

a cleaning opening (233) is formed in one side of the screen frame (23), a cleaning pipe (234) is fixedly connected to the position, corresponding to the cleaning opening (233), of the screen frame (23), one end of the cleaning pipe (234) is arranged to cover the cleaning opening (233), and the first screen (232) is arranged to be inclined upwards from one end close to the cleaning opening (233) to the other end;

the cleaning pipe (234) is far away from a sieve material frame (23) one end fixedly connected with box body (2341), the cleaning pipe (234) is communicated with the box body (2341) inside, a driving crushing roller (2342) and a driven crushing roller (2343) are connected to the box body (2341) in a rotating mode, the driving crushing roller (2342) and the driven crushing roller (2343) are abutted to each other, the box body (2341) is close to the driving crushing roller (2342) and is fixedly connected with a crushing motor (2346), an output shaft of the crushing motor (2346) is fixedly connected with a driving gear (2344), the driving gear (2344) is fixedly connected to the driving crushing roller (2342), the driven crushing roller (2343) is fixedly connected with a driven gear (2345), the driving gear (2344) and the driven gear (2345) are meshed with each other, a material return pipe (34) is fixedly connected to the other end of the box body (2341), and the material return pipe (34) is communicated with the inside of the collecting box body (2341) and the inside of the collecting box (3);

s2, a tester pours the abrasive into the collection box (3) through the material receiving opening (31), shakes the collection box (3), and the material suction pump (331) pumps the abrasive on the second screen (32) into the abrasive box (21);

s3, a test person places the test piece on the push plate (14), the push plate (14) is slid to enable the test piece to be close to the grinding wheel (12), and the grinding materials falling from the first screen (232) are in contact with the test piece for testing;

s4, controlling the driving assembly (22) to pull the valve plate (214) to open the feed opening (211), rotating the grinding wheel (12), controlling the vibrating assembly (24) to vibrate the material screening frame (23), controlling the material suction pump (331) to continuously pump the abrasive materials in the collecting box (3) into the abrasive material box (21), and pouring the abrasive materials into the collecting box (3) when the abrasive materials in the collecting box (3) are too small;

2. The detecting method for improving the accuracy of the abrasion resistance test according to claim 1, wherein the step S1 further comprises:

drive assembly (22) are including servo motor (221) of fixed connection on grinding workbin (21), output shaft fixedly connected with reduction gear (222) of servo motor (221), reduction gear (222) fixedly connected with thread bush (223), and thread bush (223) set up along grinding workbin (21) width direction, and thread bush (223) female connection has threaded rod (224), threaded rod (224) fixed connection in valve plate (214).

3. The detection method for improving the accuracy of the wear-resistant test according to claim 2, wherein:

step S1 further includes;

a height sensor (41) is fixedly connected in the grinding material box (21), and the rack (1) is connected with a control system;

step S4 further includes;

height sensor (41) detect the height of the inside abrasive material of mill feed box (21) and send the altitude value for control system, and the experimenter opens feed opening (211) through control system control servo motor (221) corotation, and control system judges whether the altitude value of receipt is higher than the default, and when the altitude value was higher than the default, control system control servo motor (221) reversal made valve plate (214) stretch into a section distance of mill feed box (21) inside.

4. The detecting method for improving the accuracy of the abrasion resistance test according to claim 3, wherein the step S4 further comprises:

when the height value received by the control system is higher than the preset value, the control system controls the servo motor (221) to reversely rotate for setting the number of turns when the height value is increased by a set value.

5. The detecting method for improving the accuracy of the abrasion resistance test according to claim 1, wherein the step S1 further comprises:

vibration subassembly (24) are including driving motor (241) on fixedly connected with support (2), the output shaft fixedly connected with cam (242) of driving motor (241), support (2) are close to sieve material frame (23) position department sliding connection has striking pole (243), striking pole (243) slide along the direction of being close to or keeping away from sieve material frame (23), striking pole (243) are close to cam (242) one end fixedly connected with drive frame (244), inside cam (242) butt in drive frame (244), striking pole (243) can butt on sieve material frame (23).

6. The detection method for improving the accuracy of the wear-resisting test according to claim 1, wherein:

step S1 further includes;

a waste material opening (35) is formed in the position, close to the bottom, of the collecting box (3), a sweeping plate (36) is connected to the inside of the collecting box (3) in a sliding mode, the sweeping plate (36) slides in the direction close to or far away from the waste material opening (35), bristles (361) are fixedly connected to the bottom of the sweeping plate (36), and the bristles (361) abut against the bottom of the collecting box (3);

step S5 further includes;

the brush bristles (361) are slid to sweep the abrasive material at the bottom of the collecting box (3) out of the cleaning opening (233).