CN216736006U - Anti-crushing U-shaped scraper conveyor for grain processing - Google Patents

Abstract

The utility model discloses an anti-crushing U-shaped scraper conveyor for grain processing, which relates to the field of food processing and comprises a conveyor groove, a first transmission chain, a second transmission chain, a first limiting part, a second limiting part and a driving assembly, wherein the first transmission chain and the second transmission chain are positioned in the conveyor groove. An object of the application is to provide a grain processing is with preventing broken U type scraper blade machine, the equal fixed mounting in both sides of second driving chain has U type scraper blade, the bottom in quick-witted groove is the U type, the lateral wall of U type scraper blade and the laminating of the bottom inner wall in quick-witted groove, make the grain that gets into the quick-witted inslot pile up the bottom inner wall in quick-witted groove through the design of U type, make things convenient for U type scraper blade to scrape the grain of quick-witted inslot and send the transportation, the bottom in U type quick-witted groove does not have the dead angle simultaneously, and laminating U type scraper blade and quick-witted groove each other has avoided the grain transportation in to take place the breakage, the grain transportation quality has been ensured, moreover, the steam generator is simple in structure, the function is stable, the installation degree of difficulty is little, and manufacturing cost is reduced.

Description

Anti-crushing U-shaped scraper conveyor for grain processing

Technical Field

The utility model relates to the field of food processing, in particular to an anti-crushing U-shaped scraper conveyor for grain processing.

Background

The scraper is a continuous transportation equipment which transports the bulk material by means of the moving scraper chain in a closed rectangular section shell, and the scraper chain is completely buried in the material when transporting the material, so the scraper is called as a scraper.

Scraper blade transportation and when transporting grain, because be with grain through scraping the transportation, inevitable can cause the extrusion breakage to grain, cause the loss on the grain, the scraper blade of scraper blade machine that has now moreover often can receive scraping of hard thing and bump and impaired, the impaired back be not convenient for change lead to influencing the scraper blade during operation can leak the material, influence scraper blade conveyer's work efficiency.

For example, publication number CN212100573U discloses an anti-crushing device on scraper conveyor, including the conveyer body, the left end of conveyer body and people's right-hand member are equipped with aircraft nose and tail respectively, the tip of aircraft nose and the tip both sides of tail all are equipped with the sprocket, the lateral part fixedly connected with actuating mechanism of aircraft nose, and actuating mechanism and sprocket drive are connected, the sprocket meshing of aircraft nose and tail end is connected with the scraper chain, fixedly connected with scraper body between the scraper chain. Through setting up buffer board, buffer gear and slide mechanism, when the scraper blade body is scraping grain and is carried grain, the grain granule is extruded by the bottom of scraper blade body, and the buffer board of scraper blade body lower extreme passes through the buffer spring among the buffer gear and in the inside activity shrink of activity groove, has avoided the scraper blade body to crush or crush the grain granule, has prevented the loss of grain.

Although foretell scraper conveyor can prevent that grain is broken, but through setting up the buffer board, buffer gear and slide mechanism cooperation scraper blade body avoid grain breakage, the structure is complicated, the installation degree of difficulty is big, and manufacturing cost has been increased, and there is a large amount of dust in the grain, grain piles up the dust on scraper conveyor's top cap inner wall long time in transportation process, it clears up the dust to need the manual work to open the top cap usually, waste time and energy, staff's the amount of labour has been increased, the speed of grain transport has been reduced, therefore, this application provides a grain processing is with preventing broken U type scraper conveyor and satisfies the demand.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide a grain processing is with preventing broken U type scraper blade machine, the equal fixed mounting in both sides of second driving chain has U type scraper blade, the bottom in quick-witted groove is the U type, the lateral wall of U type scraper blade and the laminating of the bottom inner wall in quick-witted groove, make the grain that gets into the quick-witted inslot pile up the bottom inner wall in quick-witted groove through U type design, make things convenient for U type scraper blade to scrape the transportation of sending to the grain in quick-witted groove, the bottom in U type quick-witted groove does not have the dead angle simultaneously, and laminating U type scraper blade and quick-witted groove each other has avoided taking place the breakage in the grain transportation, the grain transportation quality has been ensured, moreover, the steam generator is simple in structure, and stable in function, the installation degree of difficulty is little, and manufacturing cost is reduced.

In order to achieve the above purpose, the present application provides the following technical solutions: an anti-crushing U-shaped scraper conveyor for grain processing comprises a conveyor trough, a first transmission chain, a second transmission chain, a first limiting part, a second limiting part and a driving assembly, wherein the first transmission chain and the second transmission chain are both positioned in the conveyor trough;

the first limiting part comprises two first polished rods arranged in the first limiting part, the outer rings of the two first polished rods are sleeved with the same cleaning scraper in a sliding mode, the bottom of the cleaning scraper is provided with two grooves, the two first polished rods are sleeved in the two grooves respectively, a first convex block extending along the horizontal direction is arranged at the top of the cleaning scraper, the top of the first convex block is attached to the inner wall of the top of the machine groove, the two sides of the cleaning scraper are attached to the inner walls of the two sides of the machine groove, and an arc-shaped convex block extending towards the left is arranged at the bottom end of the cleaning scraper;

a plurality of uniformly distributed U-shaped scrapers are fixedly mounted on the second transmission chain, the bottom of the machine groove is U-shaped, and the side wall of each U-shaped scraper is attached to the inner wall of the bottom of the machine groove;

the driving assembly is used for driving the first transmission chain and the second transmission chain are in the machine groove rotation, during ash removal, the second transmission chain rotates to enable the U-shaped scrapers to move, one of the U-shaped scrapers contacts with the cleaning scraper when moving to push the cleaning scraper, ash removal is conducted on the inner wall of the top of the machine groove, the second limiting component is used for limiting the U-shaped scrapers at the top of one end of the machine groove, and the first limiting component is used for buffering protection of the U-shaped scrapers when limiting the second limiting component.

Preferably, the first limiting part comprises a fixed folded plate fixedly installed at the top of the machine groove, two included angles of the fixed folded plate are both provided with a first reinforcing rib, two first fixed sleeves are fixedly installed on the inner wall of the top of the machine groove, the first fixed sleeves are fixedly sleeved with the first polish rods, one ends of the first polish rods, far away from the first fixed sleeves, penetrate through and extend to the tops of the fixed folded plate, external threads are respectively tapped at one ends of the first polish rods, far away from the first fixed sleeves, are connected with fastening nuts through threads, the bottoms of the fastening nuts are contacted with the bottoms of the fixed folded plate, the first polish rods are L-shaped rods, the included angles of the first polish rods are arc-shaped, the outer rings of the first polish rods are slidably connected with limiting rings, and first springs sleeved on the outer rings of the first polish rods are fixedly installed at the tops of the limiting rings, the top end of the first spring is fixedly connected with the top of the fixed folded plate, and a plate taking opening is formed in one side of the fixed folded plate.

Preferably, the second limiting part comprises a first limiting sleeve fixedly arranged on two sides of the machine groove, the inner ring of the first limiting sleeve is sleeved with a first limiting rod in a sliding mode, first limiting blocks are fixedly arranged at two ends of the first limiting rod, a second spring of the outer ring of the first limiting rod is sleeved on the right side of the first limiting block, and the second spring is far away from one end of the first limiting block and one end of the first limiting sleeve are fixedly connected.

Preferably, one side fixed mounting in machine groove has the fixing base, the top fixed mounting of fixing base has drive unit, drive unit's output end key even has first pivot, the fixed cover in outer lane of first pivot has connect first belt pulley.

Preferably, the both sides inner wall of fixing base rotates and is connected with the second pivot, the fixed cover in outer lane of second pivot has connect the second belt pulley, first belt pulley with the outer lane tensioning of second belt pulley has same belt pulley V belt, one side fixed mounting of fixing base has the guard shield, the guard shield cover is established first belt pulley with the outside of second belt pulley.

Preferably, the fixed cover in outer lane middle part of second pivot has connect first gear, one side fixed mounting in quick-witted groove has the feeding storehouse, one side fixed mounting in feeding storehouse has the tail, the both sides inner wall of tail rotates and is connected with the third pivot, the outer lane of third pivot is fixed to be cup jointed the second gear.

Preferably, it is a plurality of first driving chain and a plurality of a driving chain is constituteed jointly to the second driving chain, first gear with the second gear all with driving chain meshing, every the equal fixed mounting in both sides of second driving chain has U type scraper blade, U type scraper blade is the U template, the bottom inner wall in machine groove is the arc, U type scraper blade with the laminating of the bottom inner wall in machine groove.

Preferably, the top in quick-witted groove has seted up feed inlet and play board mouth, fixed folded plate is located one side of play board mouth, discharge gate and drain have been seted up to the bottom in quick-witted groove, the bottom in quick-witted groove articulates there are first door plant and second door plant, first door plant is located in the drain, the second door plant is located in the discharge gate, first door plant with the top of second door plant all with the bottom inner wall in quick-witted groove flushes.

In conclusion, the technical effects and advantages of the utility model are as follows:

1. the grain conveying device is reasonable in structure, the U-shaped scrapers are fixedly mounted on two sides of the second transmission chain, the bottom of the machine groove is U-shaped, the side walls of the U-shaped scrapers are attached to the inner wall of the bottom of the machine groove, grains entering the machine groove are accumulated on the inner wall of the bottom of the machine groove through U-shaped design, the grains in the machine groove are conveniently scraped and conveyed by the U-shaped scrapers, meanwhile, no dead angle exists in the bottom of the U-shaped machine groove, the U-shaped scrapers and the machine groove are attached to each other, crushing in the grain conveying process is avoided, grain conveying quality is guaranteed, the structure is simple, the function is stable, mounting difficulty is small, and manufacturing cost is reduced;

2. the cleaning scraper which completes the cleaning work is limited through the second limiting part, the cleaning scraper is prevented from falling back into the machine groove after the cleaning work is completed, the cleaning scraper and the fixed folded plate are prevented from generating rigid collision through the first spring and the limiting ring to damage the cleaning scraper or the fixed folded plate, meanwhile, the cleaning scraper is protected, and the limited cleaning scraper is positioned at the top of the machine groove and is convenient for a worker to pick up through the plate taking port;

3. the U type scraper blade through the reverse motion drives cleaning scraper blade synchronous motion after contacting with cleaning scraper blade, the contact of cleaning scraper blade and the top inner wall of quick-witted groove, and scrape the cleaning through the first lug at cleaning scraper blade top and cleaning scraper blade's both sides to the inner wall of quick-witted groove, scrape the impurity that falls to quick-witted bottom of the groove simultaneously and can carry to the external world through the drain under the motion of the U type scraper blade with quick-witted bottom of the groove inner wall contact, with this completion is to the cleanness of quick-witted groove, make the staff need not open quick-witted groove top cap alright clear up quick-witted groove top contained angle department accumulational impurity, staff's working strength has been reduced, time saving and labor saving, and cleaning efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic partial cross-sectional view of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is a schematic view showing an assembling structure of a cleaning blade of the present invention.

In the figure: 1. a machine groove; 2. fixing the folded plate; 3. a first reinforcing rib; 4. a first polish rod; 5. a feeding bin; 6. a tail; 7. fastening a nut; 8. a limiting ring; 9. a first spring; 10. a first stop collar; 11. a first limit rod; 12. a first stopper; 13. a second spring; 14. a cleaning blade; 15. taking a plate opening; 16. a first fixing sleeve; 17. a fixed seat; 18. a drive member; 19. a first rotating shaft; 20. a first pulley; 21. a second rotating shaft; 22. a second pulley; 23. a first gear; 24. a first drive chain; 25. a second drive chain; 26. a U-shaped scraper; 27. a second gear; 28. a feed inlet; 29. a discharge port; 30. a sewage draining port; 31. a first door panel; 32. a second door panel; 33. a shield; 34. a third rotating shaft; 35. and (7) discharging the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1-4, the crushing-prevention U-shaped scraper conveyor for grain processing comprises a machine groove 1, a first transmission chain 24, a second transmission chain 25, a first limiting part, a second limiting part and a driving assembly, wherein the first transmission chain 24 and the second transmission chain 25 are both positioned in the machine groove 1; the first limiting part comprises two first polish rods 4 arranged in the machine groove 1, the outer rings of the two first polish rods 4 are sleeved with a same cleaning scraper 14 in a sliding mode, the bottom of the cleaning scraper 14 is provided with two grooves, the two first polish rods 4 are sleeved in the two grooves respectively, the top of the cleaning scraper 14 is provided with a first convex block extending along the horizontal direction, the top of the first convex block is attached to the inner wall of the top of the machine groove 1, the two sides of the cleaning scraper 14 are attached to the inner walls of the two sides of the machine groove 1, and the bottom end of the cleaning scraper 14 is provided with an arc-shaped convex block extending leftwards; a plurality of uniformly distributed U-shaped scrapers 26 are fixedly arranged on the second transmission chain 25, the bottom of the machine groove 1 is U-shaped, and the side walls of the U-shaped scrapers 26 are attached to the inner wall of the bottom of the machine groove 1; the driving assembly is used for driving the first transmission chain 24 and the second transmission chain 25 to rotate in the machine groove 1, during ash removal, the second transmission chain 25 rotates to enable the U-shaped scrapers 26 to move, one of the U-shaped scrapers 26 contacts with the cleaning scraper 14 when moving to push the cleaning scraper 14 to remove ash on the inner wall of the top of the machine groove 1, the second limiting part is used for limiting the U-shaped scrapers 26 to the top of one end of the machine groove 1, and the first limiting part is used for buffering protection when the U-shaped scrapers 26 and the second limiting part are limited.

The cleaning scraper 14 which finishes the cleaning work is limited and buffered through the first limiting part, the cleaning scraper 14 is prevented from rigidly colliding with the fixed folded plate 2, the cleaning scraper 14 is prevented from being damaged, the cleaning scraper 14 is limited at the top of one end of the machine groove 1 through the first limiting rod 11, the cleaning scraper 14 is prevented from falling back into the machine groove 1 after the cleaning work is finished, and a worker can pick up the cleaning scraper 14 through the plate taking opening 15; u type scraper blade 26 welds on second driving chain 25, the bottom of quick-witted groove 1 is the U type, the lateral wall of U type scraper blade 26 and the laminating of the bottom inner wall of quick-witted groove 1, make the grain that gets into in quick-witted groove 1 pile up the bottom inner wall at quick-witted groove 1 through the design of U type, make things convenient for U type scraper blade 26 to scrape the grain of quick-witted groove 1 and send the transportation, the bottom of U type quick-witted groove 1 does not have the dead angle simultaneously, and U type scraper blade 26 and quick-witted groove 1 of laminating each other have avoided taking place the breakage in the grain transportation, the transportation quality of grain has been ensured.

Further, the first limiting part comprises a fixed folded plate 2 fixedly installed at the top of the machine groove 1, two included angles of the fixed folded plate 2 are respectively provided with a first reinforcing rib 3, the supporting strength of the fixed folded plate 2 is increased through the first reinforcing ribs 3, two first fixing sleeves 16 are fixedly installed on the inner wall of the top of the machine groove 1, the first fixing sleeves 16 are fixedly sleeved with the first polish rod 4 and provide support for the first polish rod 4 together with the first fixing sleeves 16 of various countries, one end of the first polish rod 4, far away from the first fixing sleeves 16, penetrates through and extends to the top of the fixed folded plate 2, external threads are respectively tapped at one end of the first polish rod 4, far away from the first fixing sleeves 16, the first polish rod 4 is connected with a fastening nut 7 through threads, the first polish rod 4 is locked through the fastening nut 7, the bottom of the fastening nut 7 is contacted with the bottom of the fixed folded plate 2, the first polish rod 4 is an L-shaped rod, the included angle of the first polish rod 4 is arc-shaped, outer lane sliding connection of first polished rod 4 has spacing collar 8, the first spring 9 at first polished rod 4 outer lane is established to the top fixed mounting of spacing collar 8 cover, spacing collar 8 provides the buffering for clean scraper blade 14 under the effect of first spring 9, avoid clean scraper blade 14 and fixed folded plate 2 to take place the rigidity collision, the top of first spring 9 and the top fixed connection of fixed folded plate 2, one side of fixed folded plate 2 has been seted up and has been got board mouth 15, can directly take out the clean scraper blade 14 after accomplishing the cleaning through getting board mouth 15.

Further, the second limiting part comprises first limiting sleeves 10 fixedly mounted on two sides of the machine groove 1, the inner ring of each first limiting sleeve 10 is slidably sleeved with a first limiting rod 11, the first limiting rods 11 are prevented from deviating during movement, first limiting blocks 12 are fixedly mounted at two ends of each first limiting rod 11, second springs 13 sleeved on outer rings of the first limiting rods 11 are fixedly mounted on the right sides of the first limiting blocks 12, the first limiting rods 11 after movement can be reset through the second springs 13, and one ends, far away from the first limiting blocks 12, of the second springs 13 are fixedly connected with one ends of the first limiting sleeves 10.

Further, a fixed seat 17 is fixedly installed on one side of the machine groove 1, a driving part 18 is fixedly installed on the top of the fixed seat 17, an output end of the driving part 18 is connected with a first rotating shaft 19 in a key mode, the driving part 18 provides power for the first rotating shaft 19, a first belt pulley 20 is fixedly connected to an outer ring of the first rotating shaft 19 in a sleeved mode, and the first rotating shaft 19 drives the first belt pulley 20 to rotate.

Further, the inner walls of the two sides of the fixing seat 17 are rotatably connected with a second rotating shaft 21, the outer ring of the second rotating shaft 21 is fixedly sleeved with a second belt pulley 22, the outer rings of the first belt pulley 20 and the second belt pulley 22 are tensioned with a same belt pulley V-belt, the first belt pulley 20 drives the second belt pulley 22 to rotate through the belt pulley V-belt, a protecting cover 33 is fixedly installed on one side of the fixing seat 17, and the protecting cover 33 is sleeved on the outer sides of the first belt pulley 20 and the second belt pulley 22.

Further, the first gear 23 is fixedly sleeved in the middle of the outer ring of the second rotating shaft 21, the second rotating shaft 21 drives the first gear 23 to rotate, the feeding bin 5 is fixedly installed on one side of the machine trough 1, the machine tail 6 is fixedly installed on one side of the feeding bin 5, the inner walls of the two sides of the machine tail 6 are rotatably connected with the third rotating shaft 34, the second gear 27 is fixedly sleeved on the outer ring of the third rotating shaft 34, and the third rotating shaft 34 supports the second gear 27.

Further, a drive chain is constituteed jointly to a plurality of first drive chains 24 and a plurality of second drive chain 25, first gear 23 and second gear 27 all mesh with drive chain, drive chain through first gear 23 and second gear 27 and rotate, the equal fixed mounting in both sides of every second drive chain 25 has U type scraper blade 26, drive U type scraper blade 26 through drive chain and move, in order to accomplish the transmission of grain, U type scraper blade 26 is the U template, the bottom inner wall of quick-witted groove 1 is the arc, U type scraper blade 26 laminates with the bottom inner wall of quick-witted groove 1.

Further, feed inlet 28 and outlet 35 have been seted up at the top of quick-witted groove 1, can put into the grain of treating the transmission in quick-witted groove 1 through feed inlet 28, cleaning scraper 14 can be taken out through outlet 35, fixed folded plate 2 is located one side of outlet 35, discharge gate 29 and drain 30 have been seted up to the bottom of quick-witted groove 1, through the outside grain of transmitting of discharge gate 29, the bottom of quick-witted groove 1 articulates there are first door plant 31 and second door plant 32, first door plant 31 is located drain 30, second door plant 32 is located discharge gate 29, the top of first door plant 31 and second door plant 32 all flushes with the bottom inner wall of quick-witted groove 1, prevent that the grain of transportation from piling up in discharge gate 29 and drain 30.

This practical theory of operation: when the scraper machine works normally, the cleaning scraper 14 is taken down, the second door plate 32 is opened, the driving part 18 is started, the driving part 18 drives the first belt pulley 20 to rotate through the first rotating shaft 19, the first belt pulley 20 drives the second belt pulley 22 to rotate through the belt pulley V-belt, the second belt pulley 22 drives the first gear 23 to rotate through the second rotating shaft 21, the first gear 23 drives the U-shaped scraper 26 to rotate through the transmission chain, grains to be conveyed are put into the feed inlet 28 and fall to the bottom inner wall of the machine groove 1 through the feed inlet 28, the grain falling to the bottom inner wall of the machine groove 1 can be scraped away by the moving U-shaped scraper 26 and finally is conveyed out through the discharge outlet 29, after the scraper machine works for a period of time, impurities can be accumulated at the included angle between the top inner wall and the two side inner walls of the machine groove 1, at this time, the cleaning scraper 14 is slid on the outer rings of the two first polish rods 4 through the feed inlet 28, the first door plate 31 is opened, then the driving part 18 is started, at the moment, the driving part 18 drives the first rotating shaft 19 to rotate reversely, the first rotating shaft 19 drives the U-shaped scraper 26 to move reversely, the cleaning scraper 14 is driven to move synchronously after the U-shaped scraper 26 moving reversely contacts with the cleaning scraper 14, the cleaning scraper 14 contacts with the inner wall of the top of the machine tank 1, the inner wall of the machine tank 1 is scraped and cleaned through the first convex block at the top of the cleaning scraper 14 and the two sides of the cleaning scraper 14, and meanwhile, impurities scraped to the bottom of the machine tank 1 are conveyed to the outside through the sewage outlet 30 under the movement of the U-shaped scraper 26 contacting with the inner wall of the bottom of the machine tank 1, so that the cleaning in the machine tank 1 is completed;

after the cleaning scraper 14 finishes cleaning, the cleaning scraper 14 can bend and move upwards along the arc of the first polish rod 4 under the action of inertia, a certain buffer is provided for the cleaning scraper 14 through the limiting ring 8, meanwhile, when the cleaning scraper 14 moves upwards, the arc surface of the arc-shaped convex block at the bottom of the cleaning scraper can push away the first limiting rod 11 firstly, when the bottom of the cleaning scraper 14 moving in the vertical direction is higher than the top of the first limiting rod 11, the first limiting rod 11 resets under the elastic action of the second spring 13, the cleaning scraper 14 is limited through the reverse side of the arc surface of the arc-shaped convex block, the cleaning scraper 14 is prevented from falling into the machine groove 1 again, the cleaning scraper 14 is fixed at the current position under the action of the first limiting rod 11 and the first polish rod 4, and the cleaning scraper 14 can be taken out through the plate taking opening 15 at the moment.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims (8)

1. The utility model provides a grain processing is with preventing broken U type scraper blade machine, includes quick-witted groove (1), first driving chain (24) and second driving chain (25), its characterized in that: the device also comprises a first limiting part, a second limiting part and a driving assembly, wherein the first transmission chain (24) and the second transmission chain (25) are positioned in the device 1; the first limiting part comprises two first polish rods (4) arranged in the machine groove (1), the outer rings of the two first polish rods (4) are sleeved with a same cleaning scraper (14) in a sliding mode, the bottom of the cleaning scraper (14) is provided with two grooves, the two first polish rods (4) are sleeved in the two grooves respectively, the top of the cleaning scraper (14) is provided with a first convex block extending along the horizontal direction, the top of the first convex block is attached to the inner wall of the top of the machine groove (1), the two sides of the cleaning scraper (14) are attached to the inner walls of the two sides of the machine groove (1), and the bottom end of the cleaning scraper (14) is provided with an arc-shaped convex block extending leftwards; a plurality of uniformly distributed U-shaped scrapers (26) are fixedly mounted on the second transmission chain (25), the bottom of the machine groove (1) is U-shaped, and the side wall of each U-shaped scraper (26) is attached to the inner wall of the bottom of the machine groove (1); the driving assembly is used for driving the first transmission chain (24) and the second transmission chain (25) to rotate in the machine groove (1), during ash removal, the second transmission chain (25) rotates to enable the U-shaped scrapers (26) to move, one of the U-shaped scrapers (26) contacts with the cleaning scraper (14) when moving to push the cleaning scraper (14) to remove ash on the inner wall of the top of the machine groove (1), the second limiting component is used for limiting the U-shaped scrapers (26) on the top of one end of the machine groove (1), and the first limiting component is used for buffering protection when the U-shaped scrapers (26) and the second limiting component are limited.

2. The anti-crushing U-shaped scraper conveyor for grain processing according to claim 1, characterized in that: the first limiting part comprises a fixed folded plate (2) fixedly installed at the top of the machine groove (1), two included angles of the fixed folded plate (2) are provided with first reinforcing ribs (3), the top inner wall of the machine groove (1) is fixedly provided with two first fixed sleeves (16), the first fixed sleeves (16) are fixedly sleeved with first polish rods (4), one ends, far away from the first fixed sleeves (16), of the first polish rods (4) penetrate through and extend to the tops of the fixed folded plate (2), external threads are respectively tapped at one ends, far away from the first fixed sleeves (16), of the first polish rods (4), fastening nuts (7) are connected with the first polish rods (4) through threads, the bottoms of the fastening nuts (7) are contacted with the bottoms of the fixed folded plate (2), the first polish rods (4) are L-shaped rods, the included angles of the first polish rods (4) are arc-shaped, the outer lane sliding connection of first polished rod (4) has spacing collar (8), the top fixed mounting of spacing collar (8) is established first spring (9) of first polished rod (4) outer lane, the top of first spring (9) with the top fixed connection of fixed folded plate (2), one side of fixed folded plate (2) has been seted up and has been got board mouth (15).

3. The anti-crushing U-shaped scraper conveyor for grain processing according to claim 1, characterized in that: the second limiting part comprises a first limiting sleeve (10) fixedly mounted on two sides of the machine groove (1), the inner ring of the first limiting sleeve (10) is sleeved with the same first limiting rod (11) in a sliding mode, first limiting blocks (12) are fixedly mounted at two ends of the first limiting rod (11), a sleeve of the right side of each first limiting block (12) is fixedly mounted, a second spring (13) of the outer ring of the first limiting rod (11) is sleeved with the sleeve of the right side of each first limiting block (12), and the second spring (13) is kept away from one end of each first limiting block (12) and one end of each first limiting sleeve (10) are fixedly connected.

4. The anti-crushing U-shaped scraper conveyor for grain processing according to claim 1, characterized in that: one side fixed mounting of machine groove (1) has fixing base (17), the top fixed mounting of fixing base (17) has drive unit (18), the output end key of drive unit (18) even has first pivot (19), first belt pulley (20) have been cup jointed to the outer lane of first pivot (19) is fixed.

5. The anti-crushing U-shaped scraper conveyor for grain processing according to claim 4, characterized in that: the both sides inner wall of fixing base (17) rotates and is connected with second pivot (21), second belt pulley (22) have been cup jointed to the outer lane of second pivot (21) is fixed, first belt pulley (20) with the outer lane tensioning of second belt pulley (22) has same belt pulley V belt, one side fixed mounting of fixing base (17) has guard shield (33), guard shield (33) cover is established first belt pulley (20) with the outside of second belt pulley (22).

6. The anti-crushing U-shaped scraper conveyor for grain processing according to claim 5, characterized in that: first gear (23) have been fixed cup jointed in the outer lane middle part of second pivot (21), one side fixed mounting of machine groove (1) has feeding storehouse (5), one side fixed mounting in feeding storehouse (5) has tail (6), the both sides inner wall of tail (6) rotates and is connected with third pivot (34), second gear (27) have been fixed cup jointed in the outer lane of third pivot (34).

7. The grain processing of claim 6 is with preventing broken U type scraper blade machine, its characterized in that: the first transmission chains (24) and the second transmission chains (25) jointly form a transmission chain, and the first gear (23) and the second gear (27) are meshed with the transmission chain.

8. The anti-crushing U-shaped scraper conveyor for grain processing according to claim 2, characterized in that: feed inlet (28) and play board mouth (35) have been seted up at the top of quick-witted groove (1), fixed folded plate (2) are located one side of play board mouth (35), discharge gate (29) and drain (30) have been seted up to the bottom of quick-witted groove (1), the bottom of quick-witted groove (1) articulates there are first door plant (31) and second door plant (32), first door plant (31) are located in drain (30), second door plant (32) are located in discharge gate (29), first door plant (31) with the top of second door plant (32) all with the bottom inner wall of quick-witted groove (1) flushes.

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