Centrifugal air supply device of cotton picker

Abstract

The utility model discloses a centrifugal air supply device of a cotton picker, and particularly relates to the technical field of cotton pickers, which comprises a bottom plate, a positioning cylinder fixedly connected to the upper surface of the bottom plate, a rotating plate arranged at the top of the positioning cylinder, an outer protective plate fixedly connected to the top of the rotating plate, two guide rods inserted into the inner side of the outer protective plate, and a rotating block fixedly connected to one end of each guide rod. A lifting air supply mechanism is arranged on the inner side of the outer protective plate; the lifting air supply mechanism comprises a fixing frame arranged on the inner side of the outer protection plate, a rotating groove is formed in the outer side of the fixing frame, and the inner side of the rotating groove is rotationally connected with the outer side of the rotating block. The lifting air supply mechanism and the deflection mechanism are arranged to achieve finer adjustment of the air direction, the double-air-duct design is adopted to increase the air volume and the reliability, it is guaranteed that seed cotton is efficiently conveyed, and operation is kept uninterrupted when a single air duct breaks down; and stable deflection is ensured through the auxiliary wheels, heat dissipation holes effectively dissipate heat, the use safety and practicability of the device are improved, and the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of cotton harvester technology, and more specifically, to a centrifugal air supply device for a cotton harvester. Background Technology

[0002] The cotton harvester collects the cotton and then blows it through an air supply device for centralized collection. Currently, most air supply devices consist of a fan and a motor that drives the fan, used for centralized cotton collection.

[0003] The existing centrifugal air supply device for cotton harvesters is usually fixed in its installation position and air supply direction. When it is necessary to adjust the air supply direction, it is quite troublesome, which affects the cotton harvesting efficiency of the cotton harvester. At the same time, it is inconvenient to install and disassemble the fan and to carry out maintenance work.

[0004] A search revealed a centrifugal air supply device for cotton harvesters published in Chinese Patent No. CN220292597U. This utility model solves the problems that are difficult to adjust when the air supply direction is needed, which affects the cotton harvesting efficiency of the cotton harvester, and that it is inconvenient to install and disassemble the fan.

[0005] However, in actual use, due to different on-site application scenarios, when the vertical angle needs to be adjusted, the airflow direction of the fan cannot be adjusted vertically, which affects the use of the air supply device. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a centrifugal air supply device for cotton harvesters to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A centrifugal air supply device for a cotton harvester includes a base plate. A positioning cylinder is fixedly connected to the upper surface of the base plate. A rotating plate is provided at the top of the positioning cylinder. An outer protective plate is fixedly connected to the top of the rotating plate. Two guide rods are inserted into the inner side of the outer protective plate. A rotating block is fixedly connected to one end of each guide rod. A lifting air supply mechanism is provided on the inner side of the outer protective plate. The lifting air supply mechanism includes a fixed frame, which is located on the inner side of the outer protective plate. A rotating groove is opened on the outer side of the fixed frame. The inner side of the rotating groove is rotatably connected to the outer side of the rotating block. Two air ducts are fixedly connected to the inner side of the fixed frame. A positioning frame is fixedly connected to the inner side of each air duct. A connecting frame is fixedly connected to one side of each air duct. A servo motor is fixedly connected to the inner side of the connecting frame. Two fan blades are fixedly connected to the output end of the servo motor. A deflection mechanism is provided on the inner side of the base plate.

[0009] By adopting the above technical solution, the sliding of the rotating groove and the rotating block provides a fulcrum for the air duct to rotate up and down inside the outer protective plate, and the two servo motors and the air duct form a dual air duct, which improves the efficiency and stability of air supply.

[0010] As a further description of the above technical solution: a push rod is fixedly connected to one side of the connecting frame, a guide block is rotatably connected to the outside of the push rod, a push plate is inserted into one end of the push rod, two screws are inserted into the inside of the push plate, two arc-shaped sliding grooves are opened on the outside of the outer protective plate, the inside of the arc-shaped sliding grooves is slidably connected to the outside of the guide block, and multiple insertion holes are provided on the surface of the outer protective plate, with the inside of the insertion holes threadedly connected to one end of the screw.

[0011] By adopting the above technical solution, the angle of rotation of the connecting frame and the air duct can be adjusted in a timely manner by using the push rod to drive it.

[0012] As a further description of the above technical solution: the deflection structure includes multiple auxiliary wheels, the top of the auxiliary wheels is fixedly connected to the lower surface of the rotating plate, a rotating rod is fixedly connected to the bottom of the rotating plate, a turntable is fixedly connected to the bottom of the rotating rod, multiple toothed grooves are opened on the outer side of the turntable, a second positioning frame is fixedly connected to the inner side of the positioning cylinder, the inner side of the second positioning frame is rotatably connected to the outer side of the turntable, the bottom of the second positioning frame is fixedly connected, a second servo motor is fixedly connected to the top of the base plate, a gear is fixedly connected to the output end of the second servo motor, a third positioning frame is fixedly connected to the bottom of the second positioning frame, the inner side of the third positioning frame is rotatably connected to the outer side of the output end of the second servo motor, a sliding groove is opened on the top of the positioning cylinder, the inner side of the sliding groove is slidably connected to the outer side of the multiple auxiliary wheels, and multiple heat dissipation holes are opened on the inner side of the positioning cylinder, the heat dissipation holes are distributed in a ring array on the inner side of the positioning cylinder.

[0013] By adopting the above technical solution: multiple auxiliary wheels are used to keep the rotating plate stable during left and right deflection, and multiple heat dissipation holes are used to keep the interior of the positioning cylinder cool and ventilated in a timely manner, avoiding the temperature accumulation caused by the operation of the servo motor.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. By setting up a lifting and air supply mechanism, compared with the existing technology, the air duct can be deflected up and down, making the air direction adjustment of the air supply device more precise. Moreover, by using two air ducts to form a dual air duct, the efficient transportation of seed cotton during the cotton picking process is ensured by increasing the number of air ducts and air volume. In the event that one air duct fails or is blocked, the other air duct can still continue to work, ensuring uninterrupted picking operations and improving the practicality of the air supply device.

[0016] 2. By setting up a deflection mechanism, compared with the existing technology, multiple auxiliary wheels are used to make the rotating plate and the air duct maintain sufficient stability during the left and right deflection of the air direction. In addition, multiple heat dissipation holes are used to keep the inside of the positioning cylinder well ventilated, avoiding the accumulation of heat dissipated by the servo motor, improving the safety of the air supply device and extending its service life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the front structure of this utility model.

[0019] Figure 3 This is a partial schematic diagram of the connection between the air duct and the connecting frame of this utility model.

[0020] Figure 4 This is a partial schematic diagram of the connection between the outer protective plate and the guide rod of this utility model.

[0021] Figure 5 This is a schematic diagram of the rotating mechanism of this utility model.

[0022] Figure 6 This is a partial schematic diagram of the connection between the base plate and the positioning cylinder of this utility model.

[0023] The attached diagram is labeled as follows: 1. Base plate; 2. Positioning cylinder; 3. Rotating plate; 4. Outer protective plate; 5. Guide rod; 6. Rotating block; 7. Fixing frame; 8. Rotating groove; 9. Air duct; 10. Positioning frame one; 11. Connecting frame; 12. Servo motor; 13. Fan blade; 14. Push rod; 15. Guide block; 16. Push plate; 17. Screw; 18. Arc-shaped slide groove; 19. Insertion hole; 20. Rotating rod; 21. Turntable; 22. Gear groove; 23. Positioning frame two; 24. Servo motor two; 25. Gear; 26. Positioning frame three; 27. Slide groove; 28. Heat dissipation hole; 29. ​​Auxiliary wheel. Detailed Implementation

[0024] 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.

[0025] The embodiments disclosed in this application are as follows: Figure 1-6The centrifugal air supply device for a cotton harvester shown includes a base plate 1, a positioning cylinder 2 fixedly connected to the upper surface of the base plate 1, a rotating plate 3 set at the top of the positioning cylinder 2, an outer protective plate 4 fixedly connected to the top of the rotating plate 3, two guide rods 5 inserted into the inner side of the outer protective plate 4, a rotating block 6 fixedly connected to one end of each guide rod 5, and a lifting air supply mechanism set inside the outer protective plate 4; the lifting air supply mechanism includes a fixed frame 7, which is set inside the outer protective plate 4, and a rotating groove 8 is opened on the outer side of the fixed frame 7, the inner side of the rotating groove 8 being rotatably connected to the outer side of the rotating block 6; two air ducts 9 are fixedly connected inside the fixed frame 7, and a positioning frame 10 is fixedly connected inside the air ducts 9; one side of the air duct 9... A connecting frame 11 is fixedly connected, and a servo motor 12 is fixedly connected to the inner side of the connecting frame 11. Two fan blades 13 are fixedly connected to the output end of the servo motor 12. A deflection mechanism is set on the inner side of the base plate 1. The rotating groove 8 on the inner side of the fixed frame 7 is rotatably connected to the outer side of the rotating block 6. Two air ducts 9 form a dual channel, so that the two servo motors 12 can drive the two fan blades 13 to deliver air through the air ducts 9, thereby improving the air delivery efficiency of the two air ducts 9. When one of the servo motors 12 and the air duct 9 fails, the other servo motor 12 and the air duct 9 can continue to be used to maintain the continuous air delivery of the cotton harvester.

[0026] Reference Figure 3 and Figure 4 As shown, a push rod 14 is fixedly connected to one side of the connecting frame 11. A guide block 15 is rotatably connected to the outside of the push rod 14. A push plate 16 is inserted into one end of the push rod 14. Two screws 17 are inserted into the inside of the push plate 16. Two arc-shaped grooves 18 are opened on the outside of the outer protective plate 4. The inside of the arc-shaped grooves 18 is slidably connected to the outside of the guide block 15. Multiple insertion holes 19 are provided on the surface of the outer protective plate 4. The inside of the insertion holes 19 is threadedly connected to one end of the screws 17. By rotating the corresponding screws 17 on the outside of the two push plates 16, one end of the screw 17 is separated from the insertion hole 19 on the outside of the outer protective plate 4. Then, the push plate 16 is pushed to drive the guide block 15 on the outside of the push rod 14 to slide on the inside of the arc-shaped groove 18, thereby driving the air duct 9 to rotate, so that the up and down deflection angle of the air duct 9 can be controlled.

[0027] Reference Figure 1 , Figure 5 and Figure 6As shown, the deflection structure includes multiple auxiliary wheels 29. The tops of the auxiliary wheels 29 are fixedly connected to the lower surface of the rotating plate 3. A rotating rod 20 is fixedly connected to the bottom of the rotating plate 3. A turntable 21 is fixedly connected to the bottom of the rotating rod 20. Multiple toothed grooves 22 are opened on the outer side of the turntable 21. A positioning frame 23 is fixedly connected to the inner side of the positioning cylinder 2. The inner side of the positioning frame 23 is rotatably connected to the outer side of the turntable 21. The bottom of the positioning frame 23 is fixedly connected to the bottom. A servo motor 24 is fixedly connected to the top of the base plate 1. A gear 25 is fixedly connected to the output end of the servo motor 24. A positioning frame 3 26 is fixedly connected to the bottom of the positioning frame 23. The inner side of the positioning frame 3 26 is connected to the outer side of the output end of the servo motor 24. The positioning cylinder 2 is rotatably connected. A groove 27 is provided on the top of the positioning cylinder 2. The inner side of the groove 27 is slidably connected to the outer side of multiple auxiliary wheels 29. Multiple heat dissipation holes 28 are provided on the inner side of the positioning cylinder 2. The heat dissipation holes 28 are distributed in a ring array on the inner side of the positioning cylinder 2. The servo motor 24 drives the gear 25 to mesh with the tooth groove 22 on the outer side of the turntable 21, so that the turntable 21 can rotate inside the positioning frame 23, thereby driving the rotating rod 20 and the rotating plate 3 to deflect at the top of the positioning cylinder 2. The multiple auxiliary wheels 29 at the bottom of the rotating plate 3 can be slidably connected to the inner side of the groove 27 at the top of the positioning cylinder 2, so that the left and right deflection of the rotating plate 3 and the air duct 9 is more stable.

[0028] The working principle of this utility model is as follows: During the air supply process of the cotton harvester, when a vertical deflection of the air direction is required, the operator first uses a wrench or other tools to rotate the screws 17 on the inner side of the two push plates 16, so that one side of the screw 17 is separated from the insertion hole 19 on the outer side of the outer protective plate 4. Then, after the screw 17 is pulled out from the inner side of the push plate 16, one side of the push plate 16 is pushed, which drives the connecting frame 11 through the push rod 14 to push the air duct 9. At the same time, the guide block 15 on the outer side of the push rod 14 and the outer protective plate 4 are used to push the air duct 9. The two arc-shaped sliding grooves 18 on the inner side provide sliding guidance, allowing the air duct 9 to deflect up and down. During the up and down pushing process, the air duct 9 rotates through the rotating groove 8 and rotating block 6 on the inner side of the fixing frame 7, allowing the two air ducts 9 to deflect up and down. After the air outlet of the air duct 9 is deflected up and down to the appropriate angle, multiple screws 17 are reinserted into the inner side of the push plate 16, and then the multiple push plates 16 are rotated and threadedly connected to the corresponding insertion holes 19 to complete the up and down adjustment of the air outlet direction of the two air ducts 9.

[0029] After the vertical angle of the air outlet is adjusted, the two servo motors 12 drive the two fan blades 13 to rotate, so that air is discharged from the air outlet of the air duct 9. During the air discharge process, the servo motor 24 drives the gear 25 to mesh with the tooth groove 22 on the outside of the turntable 21, so that the turntable 21 can rotate inside the positioning frame 23. Then the turntable 21 will drive the top rotating rod 20 and the rotating plate 3 to rotate. During the rotation of the rotating plate 3, the multiple auxiliary wheels 29 at the bottom will rotate inside the slide groove 27, so that the rotating plate 3 can rotate smoothly, thereby driving the two air ducts 9 to deflect left and right. Finally, the multiple heat dissipation holes 28 on the outside of the positioning cylinder 2 are used to ventilate the inside of the positioning cylinder 2, so as to avoid the continuous operation of the servo motor 24 causing the temperature to accumulate.

[0030] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A centrifugal air supply device for a cotton harvester, comprising a base plate (1), characterized in that: A positioning cylinder (2) is fixedly connected to the upper surface of the base plate (1). A rotating plate (3) is provided on the top of the positioning cylinder (2). An outer protective plate (4) is fixedly connected to the top of the rotating plate (3). Two guide rods (5) are inserted into the inner side of the outer protective plate (4). A rotating block (6) is fixedly connected to one end of the guide rod (5). A lifting and air supply mechanism is provided on the inner side of the outer protective plate (4). The lifting and air supply mechanism includes a fixed frame (7), which is located inside the outer protective plate (4). A rotating groove (8) is opened on the outer side of the fixed frame (7). The inner side of the rotating groove (8) is rotatably connected to the outer side of the rotating block (6). Two air ducts (9) are fixedly connected to the inner side of the fixed frame (7). A positioning frame (10) is fixedly connected to the inner side of the air duct (9). A connecting frame (11) is fixedly connected to one side of the air duct (9). A deflection mechanism is provided on the inner side of the base plate (1).

2. The centrifugal air supply device for a cotton harvester according to claim 1, characterized in that: A servo motor (12) is fixedly connected to the inner side of the connecting frame (11), and two fan blades (13) are fixedly connected to the output end of the servo motor (12).

3. The centrifugal air supply device for a cotton harvester according to claim 1, characterized in that: A push rod (14) is fixedly connected to one side of the connecting frame (11). A guide block (15) is rotatably connected to the outside of the push rod (14). A push plate (16) is inserted into one end of the push rod (14). Two screws (17) are inserted into the inside of the push plate (16).

4. The centrifugal air supply device for a cotton harvester according to claim 1, characterized in that: The outer protective plate (4) has two arc-shaped grooves (18) on its outer side. The inner side of the arc-shaped grooves (18) is slidably connected to the outer side of the guide block (15). The outer protective plate (4) has multiple insertion holes (19) on its surface. The inner side of the insertion holes (19) is threadedly connected to one end of the screw (17).

5. The centrifugal air supply device for a cotton harvester according to claim 1, characterized in that: The deflection mechanism includes multiple auxiliary wheels (29), the top of the auxiliary wheels (29) is fixedly connected to the lower surface of the rotating plate (3), the bottom of the rotating plate (3) is fixedly connected to a rotating rod (20), the bottom of the rotating rod (20) is fixedly connected to a turntable (21), and multiple toothed grooves (22) are opened on the outer side of the turntable (21).

6. The centrifugal air supply device for a cotton harvester according to claim 1, characterized in that: A second positioning frame (23) is fixedly connected to the inner side of the positioning cylinder (2). The inner side of the second positioning frame (23) is rotatably connected to the outer side of the turntable (21). The bottom of the second positioning frame (23) is fixedly connected. A second servo motor (24) is fixedly connected to the top of the base plate (1). A gear (25) is fixedly connected to the output end of the second servo motor (24). A third positioning frame (26) is fixedly connected to the bottom of the second positioning frame (23). The inner side of the third positioning frame (26) is rotatably connected to the outer side of the output end of the second servo motor (24).

7. The centrifugal air supply device for a cotton harvester according to claim 1, characterized in that: The top of the positioning cylinder (2) is provided with a sliding groove (27), the inner side of the sliding groove (27) is slidably connected to the outer side of multiple auxiliary wheels (29), and the inner side of the positioning cylinder (2) is provided with multiple heat dissipation holes (28), which are distributed in a ring array on the inner side of the positioning cylinder (2).

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