Anti-blocking device for return air inlet of winnowing machine

Abstract

The utility model relates to a return air inlet structure, in particular to an anti-blocking device for a return air inlet of a winnowing machine. Comprising an air return box, a net plate, a guide rod, a threaded rod, a motor, a moving frame, a cleaning barrel, a bevel gear set, a pinion, a rack and a collecting frame, the net plate is arranged on the front side of the air return box, the threaded rod is rotatably arranged on the top of the front side of the air return box, the motor is arranged on the right side of the air return box, and the right end of the threaded rod is connected with the motor; a guide rod is arranged on the top of the front side of the air return box and slidably connected with the movable frame, and cleaning cylinders are rotationally arranged on the front portion of the movable frame in a bilateral symmetry mode. The motor and the screw driving system are used for guiding the moving frame to move left and right, and when the moving frame moves, the rack can drive the pinion to rotate, so that the bevel gear set rotates; the cleaning cylinder is rotated to achieve the effect that the brush on the cleaning cylinder cleans the screen plate; and the design of the collecting frame is adopted, so that the scraps are convenient to accumulate and collect.

Description

Technical Field

[0001] The utility model relates to a return air outlet structure, in particular to an anti-blocking device for the return air outlet of an air separator. Background Art

[0002] A winnowing machine is a device used to separate the light and heavy components of a material. It is widely used in industries such as grain processing, feed production, and the chemical industry. During operation, the airflow generated by the fan separates materials of varying specific gravities. Lighter materials or impurities are carried away by the airflow, while heavier materials fall and are collected. The return air vent is a crucial component of the winnowing machine, responsible for reintroducing the airflow, which still contains some light materials after initial separation, into the winnowing machine for further separation.

[0003] At present, when people clean the return air vent, they need to clean the dust on the grid as well. However, during the cleaning process, there will be some blockages such as silk threads that are difficult for workers to clean, which will reduce the efficiency of the workers. The deposition of garbage in the return air vent will affect the working performance of the air separator.

[0004] Therefore, it is necessary to design a device for preventing blockage of the return air outlet of an air separator that can facilitate dust cleaning and prevent blockage. Utility Model Content

[0005] In order to overcome the disadvantage that it is difficult to manually clean the thread-like blockages and garbage deposits in the return air inlet, and to solve the above technical problems, a return air inlet anti-blocking device for an air separator is provided.

[0006] The technical solution is: a device for preventing the return air outlet of an air separator from being blocked, comprising a return air box, a mesh plate, a guide rod, a threaded rod, a motor, a movable frame, a cleaning cylinder, a bevel gear set, a pinion, a rack and a collecting frame. A mesh plate is provided on the front side of the return air box, a threaded rod is rotatably provided on the top front side of the return air box, a motor is provided on the right side of the return air box, the right end of the threaded rod is connected to the motor, a movable frame is threadedly connected to the threaded rod, a guide rod is provided on the top front side of the return air box, the movable frame is slidably connected to the guide rod, a cleaning cylinder is rotatably provided on the front part of the movable frame, a brush is attached to the cleaning cylinder, the brush contacts the mesh plate, a pinion is rotatably provided on the top of the movable frame, a bevel gear set is provided between the top of the cleaning cylinder and the pinion, a rack is provided on the top front side of the return air box, the rack and the pinion are meshed, and a collecting frame is provided at the bottom of the return air box.

[0007] Furthermore, it also includes a tool, a rectangular frame and a cam. A rectangular hole is opened on the top and bottom of the movable frame. The movable frame is provided with a tool sliding through the two rectangular holes. A rectangular frame is provided on the top of the tool. A cam is provided on one side of the bevel gear group, and the cam is located in the rectangular frame.

[0008] Furthermore, a cleaning brush is also included. The rear side of the movable frame is provided with a cleaning brush, and the cleaning brush contacts the inner wall of the return air box.

[0009] Furthermore, an inclined plate is included, and an inclined plate is provided on the top of the collection frame.

[0010] Furthermore, it also includes a serrated plate, and the serrated plates are symmetrically provided at the left and right ends of the front part of the movable frame.

[0011] Furthermore, the length of the brush is consistent with the thickness of the screen.

[0012] The beneficial effects are: 1. The utility model uses a motor and a screw drive system to guide the movable frame to move left and right. The pinion rotates under the action of the rack, thereby driving the bevel gear set to rotate, so that the cleaning cylinder rotates to clean the wire-like garbage and debris on the screen, and can drive the blade on the tool to move to effectively cut the wire-like blockages.

[0013] 2. When the cleaning cylinder of the utility model rotates, it can effectively remove stubborn dirt such as silk threads on the brush by contacting with the serrated plate, ensuring the thoroughness of the cleaning process.

[0014] 3. The design of the collection frame adopted in the present invention enables debris to be easily accumulated and collected. The user can remove the accumulated debris by pulling it. After completing the entire cleaning process, the collection frame can be put back for recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the guide rod, threaded rod, motor, etc. of the present invention.

[0018] Figure 4 It is a three-dimensional structural diagram of the movable frame, cutter, serrated plate, etc. of the utility model.

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the cleaning cylinder, cam, rectangular frame, etc. of the utility model.

[0020] Figure 6 It is a schematic diagram of the three-dimensional structure of the pinion and bevel gear set of the present invention.

[0021] Figure 7 It is a schematic diagram of the three-dimensional structure of the collecting frame and the inclined plate of the utility model.

[0022] The names and serial numbers of the parts in the figure are: 1_return air box, 2_screen plate, 3_guide rod, 4_threaded rod, 41_motor, 5_moving frame, 6_cleaning cylinder, 7_bevel gear set, 71_pinion, 8_serrated plate, 9_cutter, 72_rack, 91_rectangular frame, 10_cam, 11_collecting frame, 12_inclined plate, 13_cleaning brush. DETAILED DESCRIPTION

[0023] The technical solution of the present utility model will be further described below with reference to the accompanying drawings.

[0024] A device for preventing the return air outlet of an air separator from blocking Figure 1-Figure 7 As shown, it includes a return air box 1, a mesh plate 2, a guide rod 3, a threaded rod 4, a motor 41, a movable frame 5, a cleaning cylinder 6, a bevel gear set 7, a pinion 71, a rack 72 and a collecting frame 11. A cavity is provided on the front side of the return air box 1. The front end face of the return air box 1 is connected to the mesh plate 2 by bolts. A cavity is provided on the front side of the return air box 1. A threaded rod 4 is rotatably installed on the top of the cavity through a bearing seat. A motor 41 is installed on the right side of the return air box 1. The right end of the threaded rod 4 passes through the right side of the return air box 1 and is connected to the motor 41. A movable frame 5 is threadedly connected to the threaded rod 4. A guide rod 3 is provided on the top front side of the cavity of the return air box 1. The guide rod 3 is arranged parallel to the threaded rod 4. The guide rod 3 slides through the movable frame 5 The movable frame 5 is slidably connected to the guide rod 3. A cleaning cylinder 6 is symmetrically rotated at the front of the movable frame 5. A brush is attached to the cleaning cylinder 6. The brush contacts the mesh plate 2. The length of the brush is consistent with the thickness of the mesh plate 2. A pinion 71 is symmetrically rotated at the top of the movable frame 5. The bevel gear set 7 includes two bevel gears, one of which is connected to the top of the cleaning cylinder 6, and the other is connected to the pinion 71. The two bevel gears are meshed with each other. A rack 72 is provided at the top of the front side of the return air box 1. The rack 72 is located directly above the pinion 71. The rack 72 is meshed with the pinion 71. A collecting frame 11 is slidably provided at the bottom of the return air box 1. The collecting frame 11 can be pulled out from the right side of the bottom of the return air box 1.

[0025] like Figure 5 and Figure 6 As shown, it also includes a tool 9, a rectangular frame 91 and a cam 10. A rectangular hole is opened at the top and bottom of the movable frame 5. The movable frame 5 is slidably provided with a tool 9 through the two rectangular holes. A plurality of groups of vertically arranged cutters are arranged at intervals on the tool 9. A rectangular frame 91 is provided on the top of the tool 9. The bevel gear of the right bevel gear group 7 is connected with a cam 10. The cam 10 is located in the rectangular frame 91. The rotation of the cam 10 drives the rectangular frame 91 to move back and forth.

[0026] like Figure 4 As shown, a cleaning brush 13 is also included. Two cleaning brushes 13 are provided on the rear side of the movable frame 5 , and the two cleaning brushes 13 are symmetrically arranged on the left and right. The cleaning brushes 13 are in contact with the inner wall of the return air box 1 .

[0027] like Figure 7 As shown, an inclined plate 12 is also included. Inclined plates 12 are provided on both sides of the top of the collecting frame 11. After the garbage falls onto the inclined plates 12, the garbage gathers in the middle along the inclined plates 12.

[0028] like Figure 4 As shown, a serrated plate 8 is also included, and the serrated plates 8 are symmetrically provided at the left and right ends of the front of the moving frame 5.

[0029] First, people start the motor 41, and the motor 41 will drive the threaded rod 4 to rotate. When the moving frame 5 reaches the left end or the right end of the return air box 1, start the motor 41 to change the direction so that the moving frame 5 moves back and forth in the return air box 1. During the movement of the moving frame 5, the pinion 71 will rotate under the action of the rack 72, and the pinion 71 will also drive the cleaning cylinder 6 to rotate through the bevel gear set 7. The brush on the cleaning cylinder 6 will go back and forth to clean the dust and other debris on the screen 2. When the cleaning cylinder 6 rotates, it contacts the serrated plate 8. The serrated plate 8 can take away the garbage with strong adhesion on the brush, so that the garbage is separated from the cleaning cylinder 6 and falls down into the collection frame 11. At the same time, the bevel gear set 7 drives the cam 10 to rotate, and the cam 10 will move the rectangular frame 91 back and forth, and the rectangular frame 91 can drive the cutter 9 to move back and forth, which can effectively shred the silk thread garbage. When the moving frame 5 moves, it will drive the cleaning brush 13 to move left and right, which plays a role in cleaning the inner wall of the return air box 1. After the silk thread garbage is shredded, it falls into the collecting frame 11. Pulling the collecting frame 11 to the right can take out the debris deposited on the collecting frame 11. After people clean the garbage deposited therein, they can put the collecting frame 11 into the return air box 1.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A device for preventing the return air outlet of an air separator from being blocked, comprising a return air box (1) and a mesh plate (2), wherein the mesh plate (2) is provided on the front side of the return air box (1), and characterized in that: The invention comprises a guide rod (3), a threaded rod (4), a motor (41), a moving frame (5), a cleaning cylinder (6), a bevel gear set (7), a pinion (71), a rack (72) and a collecting frame (11). The top of the front side of the return air box (1) is rotatably provided with a threaded rod (4). The right side of the return air box (1) is provided with a motor (41). The right end of the threaded rod (4) is connected to the motor (41). The threaded rod (4) is threadedly connected to the moving frame (5). The top of the front side of the return air box (1) is provided with a guide rod (3). The moving frame ( 5) is slidably connected to the guide rod (3), a cleaning cylinder (6) is symmetrically rotated at the front of the movable frame (5), a brush is attached to the cleaning cylinder (6), and the brush contacts the screen (2), a small gear (71) is symmetrically rotated at the top of the movable frame (5), a bevel gear set (7) is provided between the top of the cleaning cylinder (6) and the small gear (71), a rack (72) is provided at the top of the front side of the return air box (1), and the rack (72) and the small gear (71) are meshed, and a collecting frame (11) is provided at the bottom of the return air box (1).

2. The anti-blocking device for the return air outlet of an air separator according to claim 1, characterized in that: The movable frame (5) further comprises a cutter (9), a rectangular frame (91) and a cam (10). A rectangular hole is provided at the top and bottom of the movable frame (5). The movable frame (5) is provided with a cutter (9) in a sliding manner through the two rectangular holes. The top of the cutter (9) is provided with a rectangular frame (91). A cam (10) is provided on one side of the bevel gear set (7). The cam (10) is located in the rectangular frame (91).

3. The anti-blocking device for the return air outlet of an air separator according to claim 2, characterized in that: The utility model also comprises a cleaning brush (13). The rear side of the movable frame (5) is provided with the cleaning brush (13), and the cleaning brush (13) contacts the inner wall of the return air box (1).

4. The anti-blocking device for the return air outlet of an air separator according to claim 3, characterized in that: It also includes an inclined plate (12), and the top of the collecting frame (11) is provided with the inclined plate (12).

5. The anti-blocking device for the return air outlet of an air separator according to claim 4, characterized in that: It also includes a sawtooth plate (8), and the sawtooth plates (8) are symmetrically provided at the left and right ends of the front of the moving frame (5).

6. The anti-blocking device for the return air outlet of an air separator according to claim 5, characterized in that: The length of the brush is consistent with the thickness of the mesh plate (2).

Images