Bucket elevator

Abstract

The utility model discloses a bucket elevator which comprises a machine base, a machine barrel and a machine head, a head wheel is arranged in the machine head, a tail wheel is arranged in the machine base, the head wheel is connected with the tail wheel through a traction belt, and a plurality of winnowing pans are evenly arranged on the traction belt. The device further comprises a beating assembly, the beating assembly comprises a friction wheel, a first gear is fixed to one side of the friction wheel, an intermediate gear is arranged on one side of the first gear, the intermediate gear is meshed with the first gear, a second gear is arranged on the upper left portion of the intermediate gear, and the second gear is meshed with the intermediate gear. A plurality of swing rods are arranged on one side of the second gear, one end of each swing rod is fixedly connected with a beating block, and the other end of each swing rod is fixedly connected to a third rotating shaft. A connecting pipe is arranged at the top of the machine head, and one end of the connecting pipe is connected with a dedusting assembly. According to the utility model, the striking action of the striking block on the traction belt is utilized to generate a vibration effect on the winnowing pan, so that grains adhered to the inside of the winnowing pan are separated from the winnowing pan and can be conveyed out.

Description

Technical Field

[0001] The utility model relates to the technical field of grain conveying equipment, in particular to a bucket elevator. Background Art

[0002] A bucket elevator is a vertical conveying machine, which has the advantages of stable lifting, small floor area, high lifting height, etc. The bucket elevator is suitable for lifting from a low place to a high place. After the supply material is put into the hopper through the vibrating table, the machine automatically runs continuously and conveys upward. The conveying speed can be adjusted according to the conveying volume, and the lifting height can be selected as needed. The buckets are self-designed and manufactured, which makes this type of bucket elevator more widely used. All sizes are designed and manufactured according to actual needs, and are designed for supporting vertical packaging machines and computer weighing machines. The bucket elevator is suitable for the vertical conveying of granular or powdery materials in industries such as grain, oil, and feed.

[0003] In the prior art, the patent document with the authorization announcement number of CN 207329499 U discloses a low-speed bucket elevator for grain conveying, including a base, on which an intermediate housing and a top housing are installed. A tensioning wheel and a feed hopper are rotatably installed on the base; a driving device is installed at the upper end of the outer wall of the intermediate housing, and a discharge port is provided on the top housing. A driving wheel driven by the driving device is installed inside, and a traction mechanism is sleeved on the driving wheel and the pulling wheel. Both ends of the rotating shaft of the tensioning wheel are sleeved on bearing seats, and the bearing seats are installed on a tensioning adjustment mechanism. The tensioning adjustment mechanism includes an adjustment block slidably installed on a chute, a limiting plate is installed below the adjustment block, an adjustment hole is opened on the limiting plate, and a tensioning bolt with a front end screwed into the adjustment block is installed in the adjustment hole; a transverse through hole is opened on the adjustment block, and adjustment bolts with front ends against the bearing seats are respectively screwed and installed at both ends of the transverse through hole. This solution can effectively prevent the transverse deviation of the traction mechanism and extend the service life of the traction structure; the shoveling capacity of the hopper can be adjusted to improve applicability. However, there are still certain problems with the above device, such as: when lifting grain, since the discharge port is generally kept open, when the humidity in the air is relatively high, some grain will be in a wet state, and then the grain will adhere to the inside of the hopper, resulting in the fact that this part of the grain cannot be finally conveyed. Moreover, there is almost no sunlight inside the bucket elevator. Over time, this part of the grain will mildew and produce poisonous germs. If not cleaned up and mixed into new grain, it will eventually contaminate the grain. Summary of the Invention

[0004] In order to solve the problems pointed out in the background art, the utility model provides a bucket elevator, which enables the grain adhering to the inside of the bucket to break away from the bucket so as to be conveyed out, avoids the mixing of new and old grain, and thus effectively reduces the possibility of grain contamination.

[0005] In order to achieve the above purpose, the technical solution of the utility model is:

[0006] A bucket elevator includes a machine base and a machine barrel fixedly arranged at the top of the machine base. The top of the machine barrel is fixedly provided with a machine head. A head wheel is arranged inside the machine head. A tail wheel is arranged inside the machine base. The head wheel is connected to the tail wheel through a traction belt. A plurality of buckets are evenly arranged on the traction belt.

[0007] It further includes a striking component. The striking component includes a friction wheel. The friction wheel is arranged on the inner wall of the machine barrel between the head wheel and the tail wheel. The friction wheel is in contact with the traction belt. A first gear is fixed on one side of the friction wheel. The first gear is coaxially arranged with the friction wheel. A rotating shaft one rotatably connected to the machine barrel is arranged inside the first gear and the friction wheel. An intermediate gear is arranged on the inner wall of the machine barrel on one side of the first gear. The intermediate gear meshes with the first gear. A rotating shaft two rotatably connected to the machine barrel is arranged inside the intermediate gear. A second gear is arranged above the left of the intermediate gear. The second gear meshes with the intermediate gear. A rotating shaft three rotatably connected to the machine barrel is arranged inside the second gear. A plurality of swing rods are arranged on one side of the second gear. A striking block is fixedly connected to each end of each swing rod away from the second gear. The other end of the swing rod is fixedly connected to the rotating shaft three.

[0008] A connecting pipe communicating with the inside is arranged at the top of the machine head. One end of the connecting pipe away from the machine head is connected with a dust removal component.

[0009] Preferably, the outer diameters of the first gear, the intermediate gear and the second gear decrease in sequence.

[0010] Preferably, the dust removal component includes an exhaust fan. The inlet end of the exhaust fan is connected with the connecting pipe. The outlet end of the exhaust fan is connected with an air outlet pipe. A mounting plate is fixedly installed on one side of the machine head. A filter box is fixedly installed on the top of the mounting plate. One end of the air outlet pipe away from the exhaust fan is communicated with the filter box. A filter plate is arranged inside the filter box. An exhaust pipe communicating with the inside is arranged at the top of the filter box.

[0011] Preferably, the traction belt is of a ring structure. The upper and lower parts of the traction belt are respectively sleeved outside the head wheel and the tail wheel. A rotating shaft four rotatably connected to the machine head is arranged inside the head wheel. A rotating shaft five rotatably connected to the machine base is arranged inside the tail wheel. Bearing seats are arranged at both ends of the rotating shaft four and the rotating shaft five.

[0012] Preferably, one side of the head pulley is connected with a driving assembly located outside the machine head. The driving assembly includes a driving motor, a driving sprocket, a driven sprocket and a driving chain. The driving motor is connected with the machine head through a bracket. The driving sprocket is coaxially arranged with the output shaft of the driving motor and fixedly connected with the output shaft of the driving motor. The driven sprocket is coaxially arranged with the head pulley and fixedly connected with one end of the rotating shaft four located outside the machine head. One end of the driving chain is sleeved on the driving sprocket, and the other end of the driving chain is sleeved on the driven sprocket.

[0013] Preferably, the driving assembly further includes a first protective cover and a second protective cover. The first protective cover and the second protective cover are located outside the driving sprocket, the driven sprocket and the driving chain. The rotating shaft four and the output shaft of the driving motor pass through the shaft holes formed in the first protective cover and are respectively connected with the driven sprocket and the driving sprocket. A cavity is formed between the first protective cover and the second protective cover. Lubricating oil is filled in the cavity. The first protective cover is connected with the machine head through a support column.

[0014] Preferably, a feed pipe communicating with the inside thereof is arranged on the machine base, and a discharge pipe communicating with the inside thereof is arranged on the machine head. One end of the discharge pipe far away from the machine head is provided with an extension pipe, and one end of the extension pipe far away from the discharge pipe is connected with a telescopic pipe. The telescopic pipe includes an inner pipe, an intermediate pipe and an outer pipe. The diameters of the inner pipe, the intermediate pipe and the outer pipe increase in sequence. The inner pipe is located in the innermost layer and is slidably sleeved on the extension pipe. The intermediate pipe is located in the middle layer and is slidably sleeved on the inner pipe. The outer pipe is located in the outermost layer and is slidably sleeved on the intermediate pipe. Two bolts are threadedly installed on the inner pipe, the intermediate pipe and the outer pipe respectively.

[0015] Preferably, a maintenance cover plate is arranged on one side wall of the machine base, and an observation window is arranged on one side wall of the barrel.

[0016] The beneficial effects of the utility model are as follows:

[0017] 1. The key improvement point of the utility model is that by arranging a striking assembly, the traction belt drives the friction wheel to rotate, and then the first gear can accelerate the intermediate gear, and the intermediate gear accelerates the second gear, so that the second gear drives the striking block at one end of the swing rod to quickly impact the traction belt. This impact action will produce a vibration effect on the buckets installed on the traction belt, so that the grains adhering to the inside of the buckets can be separated from the buckets and thus can be conveyed out, avoiding the mixing of new and old grains, and effectively reducing the possibility of grain pollution.

[0018] 2. During the operation of the present utility model, after starting the exhaust fan, the gas with dust in the bucket elevator can be sucked into the filter box, and the filtered gas is then discharged through the exhaust pipe, which is beneficial to protecting the working environment and the health of the staff. In addition, when transporting grain to the granary through the bucket elevator, the distance can be increased by adjusting the length of the telescopic pipe to prevent the grain from accumulating near the wall of the granary. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional view of a bucket elevator of the present utility model Figure 1 .

[0020] Figure 2 is a three-dimensional view of a bucket elevator of the present utility model Figure 2 .

[0021] Figure 3 is a sectional view of a bucket elevator of the present utility model.

[0022] Figure 4 is a bucket elevator of the present utility model Figure 3 an enlarged schematic view of part A.

[0023] Figure 5 is a schematic view of the striking component in a bucket elevator of the present utility model.

[0024] Figure 6 is a bucket elevator of the present utility model Figure 3 an enlarged schematic view of part B.

[0025] Figure 7 is a schematic view of the dust collection component in a bucket elevator of the present utility model.

[0026] Figure 8 is a schematic view of the inside of the filter box in a bucket elevator of the present utility model.

[0027] Figure 9 is a schematic view of the drive component in a bucket elevator of the present utility model Figure 1 .

[0028] Figure 10 is a schematic view of the inside of the first protective cover and the second protective cover in a bucket elevator of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The present utility model will be further described below in conjunction with the drawings and specific embodiments:

[0030] As Figures 1 - 10As shown in the figure, a bucket elevator includes a machine base 1 and a machine barrel 2 fixedly arranged at the top of the machine base 1. The top of the machine barrel 2 is fixedly provided with a machine head 3. Inside the machine head 3, there is a head pulley 4. Inside the machine base 1, there is a tail pulley 5. The head pulley 4 is connected to the tail pulley 5 through a traction belt 6. A number of buckets 7 are evenly arranged on the traction belt 6. It also includes a striking assembly. The striking assembly includes a friction wheel 8. The friction wheel 8 is arranged on the inner wall of the machine barrel 2 between the head pulley 4 and the tail pulley 5. The friction wheel 8 is in contact with the traction belt 6. On one side of the friction wheel 8, there is a first gear 9 fixedly arranged. The first gear 9 is coaxially arranged with the friction wheel 8. Inside the first gear 9 and the friction wheel 8, there is a first rotating shaft 10 rotatably connected to the machine barrel 2. On the inner wall of the machine barrel 2 on one side of the first gear 9, there is an intermediate gear 11. The intermediate gear 11 meshes with the first gear 9. Inside the intermediate gear 11, there is a second rotating shaft 12 rotatably connected to the machine barrel 2. Above the left of the intermediate gear 11, there is a second gear 13. The second gear 13 meshes with the intermediate gear 11. Inside the second gear 13, there is a third rotating shaft 14 rotatably connected to the machine barrel 2. On one side of the second gear 13, there are a number of swing rods 15. One end of each swing rod 15 away from the second gear 1 has a striking block 16 fixedly connected respectively. The other end of the swing rod 15 is fixedly connected to the third rotating shaft 14. By setting the striking assembly, the traction belt 6 drives the friction wheel 8 to rotate. Then, through the first gear 9 and the intermediate gear 11, the second gear 13 drives the striking block 16 at one end of the swing rod 15 to quickly strike the traction belt 6. This striking action will produce a vibration effect on the buckets 7 installed on the traction belt 6, so that the grains adhering to the inside of the buckets 7 can be separated from the buckets 7 and thus can be conveyed out, avoiding the mixing of new and old grains, and effectively reducing the possibility of grain pollution.

[0031] It should be noted that when the bucket elevator is working, a large amount of dust will be generated. The dust is easy to pollute the working environment and will cause harm to the physical health of the staff, which is not conducive to people's use. Therefore, in the present utility model, at the top of the machine head 3, there is a connecting pipe 17 connected to its inside. The end of the connecting pipe 17 away from the machine head 3 is connected to a dust removal assembly.

[0032] Specifically, please refer to Figure 7 and Figure 8, the dust removal assembly includes a suction fan 18, the inlet end of the suction fan 18 is connected to a connecting pipe 17, the outlet end of the suction fan 18 is connected to an air outlet pipe 19, one side of the machine head 3 is fixedly installed with a mounting plate 20, the top of the mounting plate 20 is fixedly installed with a filter box 21, the end of the air outlet pipe 19 away from the suction fan 18 is communicated with the filter box 21, a filter plate 22 is arranged inside the filter box 21, and an exhaust pipe 23 communicated with the inside thereof is arranged at the top of the filter box 21. By arranging the suction fan 18 and the filter plate 22, after the suction fan 18 is started, the gas with dust in the bucket elevator can be inhaled into the filter box 21 through the connecting pipe 17 and the air outlet pipe 19, the filter plate 22 in the filter box 21 can filter the gas with dust, and the filtered gas is discharged through the exhaust pipe 23 again, which is beneficial to protecting the working environment and the physical health of the staff.

[0033] Please refer to again Figure 4 , the outer diameters of the first gear 9, the intermediate gear 11 and the second gear 13 decrease in sequence. Through this kind of arrangement, the first gear 9 can accelerate the intermediate gear 11, and the intermediate gear 11 accelerates the second gear 13, and then drives the striking block 16 at one end of the swing rod 15 to rotate rapidly.

[0034] Please refer to again Figure 3 , in this embodiment, the traction belt 6 is of an annular structure, the upper and lower parts of the traction belt 6 are respectively sleeved outside the head pulley 4 and the tail pulley 5, a fourth rotating shaft 24 rotatably connected to the machine head 3 is arranged inside the head pulley 4, a fifth rotating shaft 25 rotatably connected to the machine base 1 is arranged inside the tail pulley 5, and bearing seats 26 are arranged at both ends of the fourth rotating shaft 24 and the fifth rotating shaft 25.

[0035] Please refer to again Figure 9 and Figure 10 , one side of the head pulley 4 is connected with a driving assembly located outside the machine head 3, the driving assembly includes a driving motor 27, a driving sprocket 28, a driven sprocket 29 and a driving chain 30, the driving motor 27 is connected to the machine head 3 through a bracket 31, the driving sprocket 28 is coaxially arranged with the output shaft of the driving motor 27 and fixedly connected to the output shaft of the driving motor 27, the driven sprocket 29 is coaxially arranged with the head pulley 4, the driven sprocket 29 is fixedly connected to the end of the fourth rotating shaft 24 located outside the machine head 3, one end of the driving chain 30 is sleeved on the driving sprocket 28, and the other end of the driving chain 30 is sleeved on the driven sprocket 29.

[0036] In the prior art, during the chain drive process, the sprocket rotates to drive the chain for transmission. Among them, the meshing transmission between the chain and the sprocket will generate a certain degree of noise, resulting in a certain impact on the working environment during the overall chain drive process. Therefore, in the present utility model, the drive assembly further includes a first protective cover 32 and a second protective cover 33. The first protective cover 32 and the second protective cover 33 are located outside the driving sprocket 28, the driven sprocket 29, and the drive chain 30. The output shafts of the fourth rotating shaft 24 and the drive motor 27 pass through the shaft holes opened on the first protective cover 32 and are respectively connected to the driven sprocket 29 and the driving sprocket 28. A cavity is formed between the first protective cover 32 and the second protective cover 33. The cavity is filled with lubricating oil. The first protective cover 32 is connected to the machine head 3 through a support column 34.

[0037] Among them, the first protective cover 32 and the second protective cover 33 are hermetically connected. The cavity formed between the first protective cover 32 and the second protective cover 33 is filled with lubricating oil. The lubricating oil can not only lubricate the driving sprocket 28, the driven sprocket 29, and the drive chain 30, reducing the noise generated during the transmission between the chain and the sprocket, but also the filled lubricating oil will reduce the diffusion of noise to a certain extent, thereby effectively avoiding the impact of the noise generated during the transmission of the drive chain 30 on the working environment of the bucket elevator, and the use effect is good. It is worth mentioning that a sealing ring is fixedly arranged on the inner wall of the shaft hole opened on the first protective cover 32. The material of the sealing ring is rubber. By setting the sealing ring, the leakage of lubricating oil is prevented.

[0038] In this embodiment, a feed pipe 35 communicating with its interior is arranged on the machine base 1, a discharge pipe 36 communicating with its interior is arranged on the machine head 3, an extension pipe 37 is arranged at one end of the discharge pipe 36 far from the machine head 3, and a telescopic pipe is connected to one end of the extension pipe 37 far from the discharge pipe 36; specifically, please refer to Figure 5 again. The telescopic pipe includes an inner pipe 38, an intermediate pipe 39, and an outer pipe 40. The diameters of the inner pipe 38, the intermediate pipe 39, and the outer pipe 40 increase in sequence. The inner pipe 38 is located in the innermost layer and is slidably sleeved on the extension pipe 37. The intermediate pipe 39 is located in the middle layer and is slidably sleeved on the inner pipe 38. The outer pipe 40 is located in the outermost layer and is slidably sleeved on the intermediate pipe 39. Two bolts 41 are threadedly installed on the inner pipe 38, the intermediate pipe 39, and the outer pipe 40. During operation, a wrench is used to screw the bolts 41.

[0039] In the prior art, the discharge port of a bucket elevator is usually relatively close to the barrel 2, making it impossible to adjust the material's landing point according to actual needs. For example, when transporting grain into a granary, the grain's landing point is close to the granary wall, which easily causes the grain to accumulate in a small area. To avoid this, it is usually necessary to spread the grain toward the center of the granary manually or using other equipment, which brings inconvenience to the user. Therefore, by providing an extension tube 37 and a telescopic tube, when transporting grain into the granary, the distance can be increased by adjusting the length of the telescopic tube, which has the effect of extending the discharge tube 36, so that the grain's landing point can be close to the center of the granary, preventing the grain from accumulating near the granary wall.

[0040] Furthermore, the adjustment operation of the telescopic tube is specifically as follows: taking the adjustment of the outer tube 40 of the outermost layer of the shrink tube as an example: first, use a wrench to counterclockwise tighten the two bolts 41 of the outer tube 40 so that the two bolts 41 no longer interfere with the intermediate tube 39. Then, the outer tube 40 can be pulled away from the bucket elevator. After the pulling distance is appropriate, the two bolts 41 are tightened clockwise again to fix the outer tube 40. Similarly, if the distance is still not enough, the intermediate tube 39 and the inner tube 38 can be adjusted again.

[0041] It is worth mentioning that an inspection cover 42 is provided on one side wall of the base 1, and an observation window 43 is provided on one side wall of the barrel 2. The inspection door and the observation window 43 are provided to facilitate subsequent maintenance.

[0042] How to use this product:

[0043] When using the bucket elevator, grain is added into the feed pipe 35, and the grain is transported and lifted through the traction belt 6 and the bucket 7, and poured into the discharge pipe 36 at the top. When the traction belt 6 rotates, the traction belt 6 drives the friction wheel 8 to rotate, and then the gear 1 9 is able to accelerate the intermediate gear 11, and the intermediate gear 11 accelerates the gear 2 13, so that the gear 2 13 drives the striking block 16 at one end of the rocker 15 to quickly impact the traction belt 6. This impact action will produce a vibration effect on the bucket 7 installed on the traction belt 6, thereby allowing the grain adhering to the inside of the bucket 7 to separate from the bucket 7 so that it can be transported out, avoiding the mixing of new and old grains, thereby effectively reducing the possibility of grain contamination.

[0044] During the operation of the bucket elevator, a connecting pipe 17 communicating with its interior is provided at the top of the machine head 3. One end of the connecting pipe 17 away from the machine head 3 is connected to a dust removal assembly. After starting the exhaust fan 18 in the dust removal assembly, the gas with dust in the bucket elevator can be inhaled into the filter box 21 through the connecting pipe 17 and the air outlet pipe 19. Furthermore, the filter plate 22 in the filter box 21 can filter the gas with dust, and the filtered gas is then discharged through the exhaust pipe 23, which is beneficial to protecting the working environment and the physical health of the staff.

[0045] When transporting grain to the granary through this bucket elevator, by setting the extension pipe 37 and the telescopic pipe, the distance can be increased by adjusting the length of the telescopic pipe, that is, it has the effect of extending the discharge pipe 36, and can make the falling point of the grain close to the center of the granary, preventing the grain from accumulating near the wall of the granary.

[0046] The above-described embodiments are only the preferred embodiments of the present invention, and do not limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made according to the structure, features, and principles described in the scope of the present invention patent should be included in the scope of the present invention's patent application.

Claims

1. A bucket elevator, comprising a machine base (1) and a machine barrel (2) fixedly arranged at the top of the machine base (1), and a machine head (3) fixedly arranged at the top of the machine barrel (2), characterized in that, Inside the machine head (3), a head pulley (4) is provided. Inside the machine base (1), a tail pulley (5) is provided. The head pulley (4) is connected to the tail pulley (5) through a traction belt (6). A number of buckets (7) are evenly arranged on the traction belt (6). It further includes a striking component. The striking component includes a friction wheel (8). The friction wheel (8) is arranged on the inner wall of the barrel (2) between the head pulley (4) and the tail pulley (5). The friction wheel (8) is in contact with the traction belt (6). A first gear (9) is fixed on one side of the friction wheel (8). The first gear (9) is coaxially arranged with the friction wheel (8). A first rotating shaft (10) rotatably connected to the barrel (2) is arranged inside the first gear (9) and the friction wheel (8). An intermediate gear (11) is arranged on the inner wall of the barrel (2) on one side of the first gear (9). The intermediate gear (11) meshes with the first gear (9). A second rotating shaft (12) rotatably connected to the barrel (2) is arranged inside the intermediate gear (11). A second gear (13) is arranged in the upper left of the intermediate gear (11). The second gear (13) meshes with the intermediate gear (11). A third rotating shaft (14) rotatably connected to the barrel (2) is arranged inside the second gear (13). A number of swing rods (15) are arranged on one side of the second gear (13). One end of each swing rod (15) far from the second gear (13) is fixedly connected to a striking block (16) respectively. The other end of the swing rod (15) is fixedly connected to the third rotating shaft (14). A connecting pipe (17) communicating with its inside is arranged on the top of the machine head (3). One end of the connecting pipe (17) far from the machine head (3) is connected to a dust removal component.

2. The bucket elevator according to claim 1, characterized in that, The outer diameters of the first gear (9), the intermediate gear (11), and the second gear (13) decrease in sequence.

3. The bucket elevator according to claim 1, characterized in that, The dust removal component includes an exhaust fan (18). The inlet end of the exhaust fan (18) is connected to the connecting pipe (17). The outlet end of the exhaust fan (18) is connected to an air outlet pipe (19). A mounting plate (20) is fixedly installed on one side of the machine head (3). A filter box (21) is fixedly installed on the top of the mounting plate (20). One end of the air outlet pipe (19) far from the exhaust fan (18) communicates with the filter box (21). A filter plate (22) is arranged inside the filter box (21). An exhaust pipe (23) communicating with its inside is arranged on the top of the filter box (21).

4. The bucket elevator according to claim 1, characterized in that, The traction belt (6) is of a ring structure. The upper and lower parts of the traction belt (6) are respectively sleeved on the outside of the head pulley (4) and the tail pulley (5). A fourth rotating shaft (24) rotatably connected to the machine head (3) is arranged inside the head pulley (4). A fifth rotating shaft (25) rotatably connected to the machine base (1) is arranged inside the tail pulley (5). Bearing seats (26) are arranged at both ends of the fourth rotating shaft (24) and the fifth rotating shaft (25).

5. The bucket elevator according to claim 4, wherein One side of the head pulley (4) is connected with a driving assembly located outside the machine head (3). The driving assembly includes a driving motor (27), a driving sprocket (28), a driven sprocket (29) and a driving chain (30). The driving motor (27) is connected with the machine head (3) through a bracket (31). The driving sprocket (28) is coaxially arranged with the output shaft of the driving motor (27) and fixedly connected with the output shaft of the driving motor (27). The driven sprocket (29) is coaxially arranged with the head pulley (4), and the driven sprocket (29) is fixedly connected with one end of the rotating shaft four (24) located outside the machine head (3). One end of the driving chain (30) is sleeved on the driving sprocket (28), and the other end of the driving chain (30) is sleeved on the driven sprocket (29).

6. The bucket elevator according to claim 5, characterized in that, The driving assembly further includes a first protective cover (32) and a second protective cover (33). The first protective cover (32) and the second protective cover (33) are located outside the driving sprocket (28), the driven sprocket (29) and the driving chain (30). The rotating shaft four (24) and the output shaft of the driving motor (27) pass through the shaft holes formed in the first protective cover (32) and are respectively connected with the driven sprocket (29) and the driving sprocket (28). A cavity is formed between the first protective cover (32) and the second protective cover (33). The cavity is filled with lubricating oil. The first protective cover (32) is connected with the machine head (3) through a support column (34).

7. The bucket elevator according to claim 1, characterized in that, A feed pipe (35) communicating with the inside thereof is arranged on the machine base (1), and a discharge pipe (36) communicating with the inside thereof is arranged on the machine head (3). One end of the discharge pipe (36) far away from the machine head (3) is provided with an extension pipe (37). One end of the extension pipe (37) far away from the discharge pipe (36) is connected with a telescopic pipe. The telescopic pipe includes an inner pipe (38), an intermediate pipe (39) and an outer pipe (40). The diameters of the inner pipe (38), the intermediate pipe (39) and the outer pipe (40) increase in sequence. The inner pipe (38) is located in the innermost layer and is slidably sleeved on the extension pipe (37). The intermediate pipe (39) is located in the middle layer and is slidably sleeved on the inner pipe (38). The outer pipe (40) is located in the outermost layer and is slidably sleeved on the intermediate pipe (39). Two bolts (41) are threadedly installed on the inner pipe (38), the intermediate pipe (39) and the outer pipe (40).

8. The bucket elevator according to claim 1, characterized in that, An inspection cover plate (42) is arranged on one side wall of the machine base (1), and an observation window (43) is arranged on one side wall of the barrel (2).

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