A mobile screening machine with reverse air flow self-cleaning system

Abstract

The utility model discloses a mobile screening machine with reverse airflow self-cleaning system belongs to screening machine technical field, this mobile screening machine with reverse airflow self-cleaning system, including screening box, the inside rotation of screening box is connected with screening bucket, and both ends of screening box bottom are fixed with U shaped base, and the bottom of U shaped base is provided with universal wheel, and the inside of screening box is provided with the cleaning mechanism for screening bucket cleaning, make the transverse movement of longitudinal air -jet pipe, make high pressure airflow can clean the bottom of screening bucket, through the rotation of screening bucket, make the whole of screening bucket can get clean, effectively reduce material adhesion, the longitudinal cleaning roller of adjustable position height, make longitudinal cleaning roller always stick to the surface of screening bucket, to adapt to the screening bucket of different diameter, can keep stable cleaning effect.

Description

Technical Field

[0001] This utility model belongs to the field of screening machine technology, specifically relating to a mobile screening machine with a reverse airflow self-cleaning system. Background Technology

[0002] Mobile screening machines are widely used in industries such as mining, construction, and agriculture for grading and screening materials such as sand, gravel, aggregates, and grains. Their core components typically employ screening rollers or screens. However, during prolonged operation, fine particles easily accumulate on the surface of the screening rollers, leading to screen blockage, reduced screening efficiency, and even affecting the equipment's lifespan. Therefore, how to efficiently clean the screening rollers and ensure continuous and stable operation has become a problem that the industry needs to solve.

[0003] Existing cleaning methods mainly use high-frequency vibration to dislodge clogging particles, but long-term vibration can easily lead to fatigue of the screening roller structure and has high energy consumption. High-pressure water jets are used to wash the screening rollers, but this requires an additional water supply system and is not suitable for dry environments or materials that are susceptible to moisture. To address these issues, we have designed a mobile screening machine with a reverse airflow self-cleaning system to provide an alternative technical solution. Utility Model Content

[0004] The purpose of this invention is to provide a mobile screening machine with a reverse airflow self-cleaning system to solve the problems mentioned in the background art during the use of the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a mobile screening machine with a reverse airflow self-cleaning system, comprising a screening box, a screening barrel rotatably connected inside the screening box, U-shaped bases fixed at both ends of the bottom of the screening box, universal wheels provided at the bottom of the U-shaped bases, and a cleaning mechanism for cleaning the screening barrel provided inside the screening box.

[0006] The cleaning mechanism includes a first drive motor. The first drive motor is bolted to one end of the screening box. A transverse threaded rod is fixed to the output end of the first drive motor. A rectangular sliding seat is threaded to the outer side of the transverse threaded rod. A longitudinal air jet pipe is fixed to the top of the rectangular sliding seat. A blower is provided at one end of the screening box and at the top of the first drive motor. The output end of the blower is connected to the longitudinal air jet pipe.

[0007] Preferably, a transverse smooth rod is provided on both sides of the transverse threaded rod, the end of the transverse smooth rod is close to the screening box and is fixedly connected to the screening box, and the transverse smooth rod passes through the outside of the rectangular sliding seat and is slidably connected to the rectangular sliding seat.

[0008] Preferably, the cleaning mechanism further includes a circular rotating seat, which is rotatably connected inside the rectangular sliding seat. A third drive motor is bolted to one side of the circular rotating seat, and a transverse rotating plate is fixed to the outside of the circular rotating seat. A longitudinal rotating column is rotatably connected to one end of the transverse rotating plate via a bearing. A longitudinal cleaning roller is fixed to the outside of the longitudinal rotating column. The output end of the third drive motor is connected to the longitudinal rotating column via a track. A rotating assembly for rotating the circular rotating seat is provided on the outside of the rectangular sliding seat.

[0009] Preferably, the output end of the third drive motor passes through the interior of the circular rotating seat and is rotatably connected to the circular rotating seat through a bearing.

[0010] Preferably, the rotating assembly includes a vertical hydraulic cylinder, which is located outside the rectangular sliding seat and fixedly connected to it. The output end of the vertical hydraulic cylinder is rotatably connected to a longitudinal rotating rod via a bearing. A vertical transmission column is rotatably connected to the outside of the longitudinal rotating rod. A vertical rotating column is rotatably connected to the top of the vertical transmission column via a pin. The vertical rotating column is sleeved on the outside of the circular rotating seat and fixedly connected to it.

[0011] Preferably, a dovetail slider is fixed at one end of the longitudinal rotating rod near the rectangular sliding seat, and a vertical dovetail groove is provided inside the rectangular sliding seat. The longitudinal rotating rod and the rectangular sliding seat are slidably connected by the cooperation of the dovetail slider and the vertical dovetail groove.

[0012] Preferably, a second drive motor is bolted to the other end of the screening box, and the output end of the second drive motor is fixedly connected to the screening barrel.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention employs a series of designs to enable the lateral movement of the longitudinal air jet pipe, allowing high-pressure airflow to clean the bottom of the screening barrel. The rotation of the screening barrel ensures that the entire barrel is cleaned, effectively reducing material adhesion. The adjustable longitudinal cleaning roller keeps the roller in constant contact with the surface of the screening barrel, adapting to screening barrels of different diameters and maintaining a stable cleaning effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the screening box and the second drive motor of this utility model;

[0017] Figure 3This is a schematic diagram of the internal structure of the screening box of this utility model;

[0018] Figure 4 This is a schematic diagram of the transverse threaded rod and transverse smooth rod of this utility model;

[0019] Figure 5 This is a schematic diagram of the longitudinal air nozzle and rectangular sliding seat of this utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the transverse rotating plate and the longitudinal rotating column of this utility model;

[0021] Figure 7 This is a schematic diagram of the structure of the circular rotating seat and the transverse rotating plate of this utility model;

[0022] Figure 8 This is a schematic diagram of the internal structure of the circular rotating seat of this utility model;

[0023] Figure 9 This is a schematic diagram of the vertical hydraulic cylinder and longitudinal rotating rod of this utility model.

[0024] In the diagram: 1. Screening box; 2. U-shaped base; 3. Screening barrel; 4. First drive motor; 5. Blower; 6. Second drive motor; 7. Rectangular sliding seat; 8. Transverse threaded rod; 9. Transverse smooth rod; 10. Longitudinal air nozzle; 11. Longitudinal cleaning roller; 12. Longitudinal rotating column; 13. Transverse rotating plate; 14. Circular rotating seat; 15. Third drive motor; 16. Vertical hydraulic cylinder; 17. Longitudinal rotating rod; 18. Vertical transmission column; 19. Vertical rotating column. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 1-9 A mobile screening machine with a reverse airflow self-cleaning system includes a screening box 1, a screening barrel 3 rotatably connected inside the screening box 1, a U-shaped base 2 fixed at both ends of the bottom of the screening box 1, a universal wheel provided at the bottom of the U-shaped base 2, and a cleaning mechanism for cleaning the screening barrel 3 provided inside the screening box 1.

[0027] The cleaning mechanism includes a first drive motor 4. The first drive motor 4 is bolted to one end of the screening box 1. A transverse threaded rod 8 is fixed to the output end of the first drive motor 4. A rectangular sliding seat 7 is threaded to the outer side of the transverse threaded rod 8. A longitudinal air jet pipe 10 is fixed to the top of the rectangular sliding seat 7. A blower 5 is installed at one end of the screening box 1 and at the top of the first drive motor 4. The output end of the blower 5 is connected to the longitudinal air jet pipe 10. Through the operation of the blower 5, outside air can enter the interior of the longitudinal air jet pipe 10 and be sprayed out through the longitudinal air jet pipe 10, so that the longitudinal air jet pipe 10 can clean the bottom of the screening barrel 3.

[0028] A transverse smooth rod 9 is provided on both sides of the transverse threaded rod 8. The transverse smooth rod 9 is close to one end of the screening box 1 and is fixedly connected to the screening box 1. The transverse smooth rod 9 passes through the outside of the rectangular sliding seat 7 and is slidably connected to the rectangular sliding seat 7, so that the rectangular sliding seat 7 can move laterally on the outside of the transverse smooth rod 9. Thus, the setting of the transverse smooth rod 9 can guide the lateral movement trajectory of the rectangular sliding seat 7.

[0029] Here, the operation of the first drive motor 4 enables the transverse threaded rod 8 to rotate. The rotation of the transverse threaded rod 8 enables the rectangular sliding seat 7 to move laterally outside the transverse smooth rod 9. The movement of the rectangular sliding seat 7 enables the longitudinal air nozzle 10 to move laterally. Through the operation of the blower 5, outside air can enter the interior of the longitudinal air nozzle 10 and be sprayed out through the longitudinal air nozzle 10, so that the longitudinal air nozzle 10 can clean the bottom of the screening barrel 3.

[0030] The cleaning mechanism also includes a circular rotating seat 14, which is rotatably connected inside the rectangular sliding seat 7. A third drive motor 15 is bolted to one side of the circular rotating seat 14. A transverse rotating plate 13 is fixed to the outside of the circular rotating seat 14. A longitudinal rotating column 12 is rotatably connected to the inside of one end of the transverse rotating plate 13 via a bearing. A longitudinal cleaning roller 11 is fixed to the outside of the longitudinal rotating column 12. The output end of the third drive motor 15 is connected to the longitudinal rotating column 12 via a track. A rotating component for rotating the circular rotating seat 14 is provided on the outside of the rectangular sliding seat 7. The operation of the third drive motor 15, through the track, enables the longitudinal rotating column 12 to rotate. The rotation of the longitudinal rotating column 12 enables the longitudinal cleaning roller 11 to rotate, thereby enabling the longitudinal cleaning roller 11 to clean the bottom outside of the screening barrel 3.

[0031] The output end of the third drive motor 15 passes through the interior of the circular rotating seat 14 and is rotatably connected to the circular rotating seat 14 through a bearing. The bearing allows the output end of the third drive motor 15 to pass through the interior of the circular rotating seat 14 and rotate. The operation of the third drive motor 15 allows the longitudinal rotating column 12 to rotate inside the transverse rotating plate 13.

[0032] The rotating assembly includes a vertical hydraulic cylinder 16, which is located outside the rectangular sliding seat 7 and is fixedly connected to the rectangular sliding seat 7. The output end of the vertical hydraulic cylinder 16 is rotatably connected to a longitudinal rotating rod 17 via a bearing. A vertical transmission column 18 is rotatably connected to the outside of the longitudinal rotating rod 17. A vertical rotating column 19 is rotatably connected to the top of the vertical transmission column 18 via a pin. The vertical rotating column 19 is sleeved on the outside of the circular rotating seat 14 and is fixedly connected to the circular rotating seat 14.

[0033] A dovetail slider is fixed at one end of the longitudinal rotating rod 17 near the rectangular sliding seat 7. A vertical dovetail groove is provided inside the rectangular sliding seat 7. The longitudinal rotating rod 17 and the rectangular sliding seat 7 are slidably connected through the cooperation of the dovetail slider and the vertical dovetail groove. Through the setting of the dovetail slider and the vertical dovetail groove, the longitudinal rotating rod 17 can slide vertically on the outside of the rectangular sliding seat 7.

[0034] Here, the operation of the vertical hydraulic cylinder 16 enables the longitudinal rotating rod 17 to move vertically up and down. The vertical movement of the longitudinal rotating rod 17, through the vertical transmission column 18, causes the vertical rotating column 19 to drive the circular rotating seat 14 to rotate, thereby enabling the transverse rotating plate 13 to rotate with the circular rotating seat 14. This allows the longitudinal cleaning roller 11 to rotate around the circular rotating seat 14, thus enabling the longitudinal cleaning roller 11 to rotate towards the bottom of the screening barrel 3 to meet the cleaning needs of screening barrels 3 of different diameters. The operation of the third drive motor 15 enables the longitudinal rotating column 12 to rotate inside the transverse rotating plate 13, thereby enabling the longitudinal cleaning roller 11 to rotate and clean the bottom of the screening barrel 3.

[0035] The other end of the screening box 1 is bolted with a second drive motor 6. The output end of the second drive motor 6 is fixedly connected to the screening barrel 3. Through the operation of the second drive motor 6, the screening barrel 3 can rotate inside the screening box 1, thereby enabling the material inside the screening barrel 3 to be screened.

[0036] Through a series of designs, the longitudinal air nozzle 10 moves laterally, allowing the high-pressure airflow to clean the bottom of the screening barrel 3. The rotation of the screening barrel 3 ensures that the entire screening barrel 3 is cleaned, effectively reducing material adhesion. The adjustable longitudinal cleaning roller 11 keeps the longitudinal cleaning roller 11 in contact with the surface of the screening barrel 3 to adapt to screening barrels of different diameters and maintain a stable cleaning effect.

[0037] Working principle: The operation of the first drive motor 4 enables the transverse threaded rod 8 to rotate. The rotation of the transverse threaded rod 8 enables the rectangular sliding seat 7 to move laterally outside the transverse smooth rod 9. The movement of the rectangular sliding seat 7 enables the longitudinal air nozzle 10 to move laterally. Through the operation of the blower 5, outside air can enter the interior of the longitudinal air nozzle 10 and be sprayed out through the longitudinal air nozzle 10, so that the longitudinal air nozzle 10 can clean the bottom of the screening barrel 3.

[0038] The operation of the vertical hydraulic cylinder 16 enables the longitudinal rotating rod 17 to move vertically up and down. The vertical movement of the longitudinal rotating rod 17, through the vertical transmission column 18, causes the vertical rotating column 19 to drive the circular rotating seat 14 to rotate, which in turn causes the transverse rotating plate 13 to rotate with the circular rotating seat 14. This allows the longitudinal cleaning roller 11 to rotate around the circular rotating seat 14, thus enabling the longitudinal cleaning roller 11 to rotate towards the bottom of the screening barrel 3 to meet the cleaning needs of screening barrels 3 of different diameters. The operation of the third drive motor 15 enables the longitudinal rotating column 12 to rotate inside the transverse rotating plate 13, which in turn enables the longitudinal cleaning roller 11 to rotate, allowing the longitudinal cleaning roller 11 to clean the bottom of the screening barrel 3.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mobile screening machine with a reverse air flow self-cleaning system, characterized in that: Includes a screening box (1), a screening barrel (3) is rotatably connected inside the screening box (1), and U-shaped bases (2) are fixed at both ends of the bottom of the screening box (1). Universal wheels are provided at the bottom of the U-shaped bases (2), and a cleaning mechanism for cleaning the screening barrel (3) is provided inside the screening box (1). The cleaning mechanism includes a first drive motor (4), and the first drive motor (4) is bolted to one end of the screening box (1). A transverse threaded rod (8) is fixed to the output end of the first drive motor (4). A rectangular sliding seat (7) is threaded to the outer side of the transverse threaded rod (8). A longitudinal air jet pipe (10) is fixed to the top of the rectangular sliding seat (7). A blower (5) is provided at one end of the screening box (1) and at the top of the first drive motor (4). The output end of the blower (5) is connected to the longitudinal air jet pipe (10).

2. A mobile screening machine with a reverse airflow self-cleaning system according to claim 1, characterized in that: Both sides of the transverse threaded rod (8) are provided with transverse smooth rods (9). The transverse smooth rod (9) is located near the end of the screening box (1) and is fixedly connected to the screening box (1). The transverse smooth rod (9) passes through the outside of the rectangular sliding seat (7) and is slidably connected to the rectangular sliding seat (7).

3. A mobile screening machine with a reverse airflow self-cleaning system according to claim 1, characterized in that: The cleaning mechanism also includes a circular rotating seat (14), which is rotatably connected inside the rectangular sliding seat (7). A third drive motor (15) is bolted to one side of the circular rotating seat (14). A transverse rotating plate (13) is fixed to the outside of the circular rotating seat (14). A longitudinal rotating column (12) is rotatably connected to one end of the transverse rotating plate (13) through a bearing. A longitudinal cleaning roller (11) is fixed to the outside of the longitudinal rotating column (12). The output end of the third drive motor (15) is connected to the longitudinal rotating column (12) through a track. A rotating component for rotating the circular rotating seat (14) is provided on the outside of the rectangular sliding seat (7).

4. A mobile screening machine with a reverse airflow self-cleaning system according to claim 3, characterized in that: The output end of the third drive motor (15) passes through the interior of the circular rotating seat (14) and is rotatably connected to the circular rotating seat (14) through a bearing.

5. A mobile screening machine with a reverse airflow self-cleaning system according to claim 3, characterized in that: The rotating assembly includes a vertical hydraulic cylinder (16), which is located outside the rectangular sliding seat (7) and is fixedly connected to the rectangular sliding seat (7). The output end of the vertical hydraulic cylinder (16) is rotatably connected to a longitudinal rotating rod (17) via a bearing. A vertical transmission column (18) is rotatably connected to the outside of the longitudinal rotating rod (17). A vertical rotating column (19) is rotatably connected to the top of the vertical transmission column (18) via a pin. The vertical rotating column (19) is sleeved on the outside of the circular rotating seat (14) and is fixedly connected to the circular rotating seat (14).

6. A mobile screening machine with a reverse airflow self-cleaning system according to claim 5, characterized in that: The longitudinal rotating rod (17) is fixed with a dovetail slider at one end near the rectangular sliding seat (7). The rectangular sliding seat (7) has a vertical dovetail groove inside. The longitudinal rotating rod (17) and the rectangular sliding seat (7) are slidably connected by the cooperation of the dovetail slider and the vertical dovetail groove.

7. The mobile screening machine with reverse airflow self-cleaning system of claim 1, wherein: The other end of the screening box (1) is bolted with a second drive motor (6), and the output end of the second drive motor (6) is fixedly connected to the screening barrel (3).

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