A hydraulically driven flexible cotton removal mechanism for a cotton harvester

Abstract

This utility model discloses a hydraulically driven flexible cotton removal mechanism for a cotton harvester, specifically relating to the technical field of cotton removal mechanisms in cotton harvesters. It includes a rotating shaft with support columns fixedly connected to both ends. One end of one support column is connected to a hydraulic motor. Multiple dividing cylinders and a cotton removal disc are sleeved in the middle of the rotating shaft. Multiple cotton removal teeth are symmetrically fixedly connected to both ends of the cotton removal disc. This utility model firstly uses rubber blocks for the cotton removal teeth, which can form a flexible wrapping effect upon contact with the cotton plant, rather than a rigid hook, facilitating cotton removal. The hydraulic motor serves as the driving component, allowing for stepless speed regulation via a proportional speed control valve, facilitating the adjustment of the output torque. In conjunction with the cotton removal disc, a limiting slider slides inside the fixed columns, compressing a spring. This buffers the tension of the cotton removal teeth, ensuring stable contact pressure between the teeth and the cotton plant, preventing excessive pressure from damaging the cotton fibers or insufficient pressure from missing cotton, thus improving the cotton removal effect.

Description

Technical Field

[0001] This utility model relates to the technical field of cotton removal mechanism in cotton harvesters, and more specifically, to a hydraulically driven flexible cotton removal mechanism for cotton harvesters. Background Technology

[0002] Cotton harvesters are important pieces of equipment in the field of agricultural machinery, mainly used for harvesting cotton. With the development of science and technology and the mechanization of agricultural production, the application of cotton harvesters has been widely promoted. They have replaced traditional manual picking, improved cotton harvesting efficiency, and reduced labor costs. In order to remove cotton wrapped around the picking spindle, the cotton harvesting unit usually includes an adjustable cotton removal column with multiple cotton removal discs. The cotton removal discs are usually discs made of rubber or urethane and rotate at a tangential speed greater than the tangential speed of the picking spindle. When the picking spindle and the cotton removal discs move relative to each other, the cotton is untied and peeled off from the picking spindle. Chinese patent publication number CN115568335A discloses a cotton harvester and its cotton removal disc. The cotton removal disc includes a disc body with a mounting hole in the center and several toothed portions around its periphery. The mounting hole allows for installation and fixation with a spindle. The extending direction of the toothed portions is inclined relative to the radial direction of the disc body. The cotton removal disc provided by this invention, by setting the extending direction of the toothed portions inclined relative to the radial direction of the disc body, changes the angle between the toothed portions and the spindle when the disc and spindle are engaged, as the relative position of the disc and spindle remains unchanged. The inclined toothed portions can maintain a good cotton removal angle with the spindle, thus improving cotton removal efficiency. In traditional cotton removal mechanisms, the cotton removal disc is fixed on the rotating shaft. With the fixed transmission ratio of the motor or gear transmission, the rotation speed and torque of the cotton removal component cannot change in real time with the load of cotton on the picking spindle. Moreover, the pulling force of the cotton removal teeth on the cotton on the picking spindle is a rigid impact, which not only easily damages the cotton fibers, but may also cause the seed cotton on the picking spindle to scatter due to sudden changes in tension, increasing the loss rate. Therefore, a hydraulically driven flexible cotton removal mechanism for cotton harvesters is proposed. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a hydraulically driven flexible cotton removal mechanism for a cotton harvester to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a hydraulically driven flexible cotton removal mechanism for a cotton harvester, comprising a rotating shaft, with support columns fixedly connected to both ends of the rotating shaft, one end of one of the support columns being connected to a hydraulic motor, and a plurality of partition cylinders and a cotton removal disc sleeved in the middle of the rotating shaft, with a plurality of cotton removal teeth symmetrically fixedly connected to both ends of the cotton removal disc. A connecting ring is provided in the middle of the cotton removal disc, and a limiting groove is provided on the side of the connecting ring. A fixing post is fixedly connected to the middle of the limiting groove, and a spring is sleeved in the middle of the fixing post. A limiting slider is fixedly connected to the middle of the cotton removal disc at a position corresponding to the limiting groove.

[0005] Preferably, the separator cylinders are located on both sides of the cotton removal disc, and fastening bolts are inserted into the middle of the separator cylinders at both ends of the rotating shaft.

[0006] Preferably, a plurality of the cotton-removing teeth are arranged in a circular array on both sides of the cotton-removing disc, and the end of the cotton-removing teeth near the central axis of the cotton-removing disc is set as an inclined surface, and the cotton-removing teeth are rubber blocks.

[0007] Preferably, the rotating shaft is slidably connected to the separator cylinder and the connecting ring via a spline.

[0008] Preferably, the cross-sectional shape of the connecting ring is set to "H" shape, and the two side rings of the connecting ring are located on both sides of the cotton removal disc.

[0009] Preferably, the fixing column is configured as an arc-shaped structure, and the limiting groove is configured as an arc-shaped structure.

[0010] Preferably, the limiting slider is adapted to the limiting groove, and the limiting slider is disposed in the middle of the limiting groove.

[0011] Preferably, the fixing post passes through the middle of the limiting block, and the spring is located on one side of the limiting block.

[0012] The technical effects and advantages of this utility model are as follows: 1. This utility model firstly uses rubber blocks to make cotton-removing teeth, which can form a flexible wrapping rather than a rigid hook when in contact with cotton plants, making cotton removal easier. It also uses a hydraulic motor as a driving component, which can achieve stepless speed regulation through a proportional speed control valve, making it easy to adjust the output torque. In conjunction with the cotton-removing disc, it drives the limit slider to slide inside the fixed column and squeeze the spring, which can buffer the tension of the cotton-removing teeth, ensure stable contact pressure between the cotton-removing teeth and cotton plants, avoid excessive pressure damaging the cotton fibers or insufficient pressure causing missed harvesting, and improve the cotton removal effect. 2. This utility model also limits the installation of multiple cotton removal discs by setting a separator cylinder, improving the stability of the gap between multiple cotton removal discs, and by setting the cross-sectional shape of the connecting ring to "H" shape, it prevents cotton fibers from entering the gap between the connecting ring and the cotton removal disc, playing a limiting and blocking role, while improving the stability of the cotton removal disc as it rotates with the connecting ring. In summary, through the interaction of the above-mentioned multiple functions, the output torque can be easily adjusted, and the tension of the cotton removal teeth can be buffered to ensure stable contact pressure between the cotton removal teeth and the cotton plant, avoiding damage to the cotton fibers due to excessive pressure or missed harvesting due to insufficient pressure, thereby improving the cotton removal effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the disassembled structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the cotton removal disc of this utility model.

[0016] Figure 4 This is a schematic diagram showing the disassembled structure of the cotton removal disc and connecting ring of this utility model.

[0017] The attached diagram is labeled as follows: 1. Rotating shaft; 2. Support column; 3. Hydraulic motor; 4. Divider cylinder; 5. Cotton removal disc; 6. Cotton removal teeth; 7. Connecting ring; 8. Limiting groove; 9. Fixing column; 10. Spring; 11. Limiting slider. Detailed Implementation

[0018] 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.

[0019] As attached Figure 1-4 The hydraulically driven flexible cotton removal mechanism of a cotton harvester shown includes a rotating shaft 1, with support columns 2 fixedly connected to both ends of the rotating shaft 1. One end of one of the support columns 2 is connected to a hydraulic motor 3. Starting the hydraulic motor 3 drives the rotating shaft 1 to rotate. The hydraulic motor replaces the traditional electric motor transmission and can achieve stepless speed regulation through a proportional speed regulating valve, which facilitates the adjustment of output torque. Multiple separator cylinders 4 and cotton removal discs 5 are sleeved in the middle of the rotating shaft 1. The separator cylinders 4 isolate adjacent cotton removal discs 5 and make the spacing between multiple cotton removal discs 5 the same. Multiple cotton removal teeth 6 are symmetrically fixedly connected to both ends of the cotton removal discs 5. The cotton removal teeth 6 can form a flexible wrap when in contact with the cotton plant, rather than a rigid hook, which facilitates cotton removal. A connecting ring 7 is provided in the middle of the cotton removal disc 5. A limiting groove 8 is opened on the side of the connecting ring 7. A fixing post 9 is fixedly connected in the middle of the limiting groove 8. A spring 10 is sleeved in the middle of the fixing post 9. A limiting slider 11 is fixedly connected in the middle of the cotton removal disc 5 and at the position corresponding to the limiting groove 8. When the cotton removal disc 5 drives the cotton removal teeth 6 to rotate with the rotating shaft 1 to remove cotton from the cotton on the spindle, when the rotation pulling resistance is large, the limiting slider 11 can slide inside the limiting groove 8 to squeeze the spring 10, thereby achieving a buffering effect. It can automatically compress or reset according to the contact pressure, buffering the pulling force between the cotton removal teeth and the cotton plant, and reducing the wear of the cotton removal teeth.

[0020] As attached Figure 1-3 As shown, the separator cylinder 4 is located on both sides of the cotton removal disc 5. Fastening bolts are inserted into the middle of the separator cylinder 4 at both ends of the rotating shaft 1. Multiple cotton removal teeth 6 are arranged in a circular array on both sides of the cotton removal disc 5. The end of the cotton removal tooth 6 near the central axis of the cotton removal disc 5 is set as an inclined surface. The cotton removal tooth 6 is a rubber block. The rotating shaft 1 is slidably connected to the separator cylinder 4 and the connecting ring 7 by a spline. The rotating shaft 1 drives the separator cylinder 4 and the connecting ring 7 to rotate, and at the same time drives the cotton removal disc 5 and the cotton removal teeth 6 to rotate, which facilitates the removal of cotton on the spindle and also facilitates the fixing of the separator cylinder 4, thereby realizing the fixed position of the multiple cotton removal discs 5.

[0021] As attached Figure 3 , 4 As shown, the cross-sectional shape of the connecting ring 7 is set to "H" shape. The two circular rings of the connecting ring 7 are located on both sides of the cotton removal disc 5. The fixing post 9 is set to an arc structure. The limiting groove 8 is set to an arc structure. The limiting slider 11 is adapted to the limiting groove 8. The limiting slider 11 is set in the middle of the limiting groove 8. The fixing post 9 passes through the middle of the limiting block 11. The spring 10 is located on one side of the limiting block 11. During the process of the cotton removal teeth 6 pulling and removing cotton on the spindle, the limiting slider 11 slides inside the limiting groove 8 to squeeze the spring 10, which can buffer the pulling force of the cotton removal teeth 6 and avoid damaging the cotton fibers. The fixing post 9 improves the connection strength. The connecting ring 7 prevents cotton fibers from entering the gap between the connecting ring 7 and the cotton removal disc 5, which plays a limiting and blocking role. At the same time, it improves the stability of the cotton removal disc 5 as it rotates with the connecting ring 7. It is worth noting that the hydraulic motor 3 is existing technology, model number OMT-200.

[0022] The working principle of this utility model is as follows: When in use, the rotating shaft 1 with multiple cotton-removing discs 5 is installed on one side of the cotton-picking mechanism through the support column 2, and one end of the picking spindle of the cotton-picking mechanism is located between two cotton-removing discs 5 and does not contact the cotton-removing teeth 6. The hydraulic motor 3 is started to control the rotating shaft 1 to rotate, which can drive the cotton removal disc 5 and the cotton removal teeth 6 to rotate and remove cotton from the cotton picking mechanism. During the process of removing cotton from the spindle by the cotton removal teeth 6, the spring 10 is squeezed by the sliding of the limiting slider 11 inside the limiting groove 8, which can buffer the pulling force of the cotton removal teeth 6, realize flexible cotton removal, and avoid damage to the cotton fibers.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydraulic drive flexible boll picker mechanism of a cotton picker, comprising a rotating shaft (1), characterized in that: The two ends of the rotating shaft (1) are fixedly connected to support columns (2), one end of one of the support columns (2) is connected to a hydraulic motor (3), the middle of the rotating shaft (1) is fitted with multiple partition cylinders (4) and a cotton removal disc (5), the two ends of the cotton removal disc (5) are symmetrically fixedly connected with multiple cotton removal teeth (6); the middle of the cotton removal disc (5) is provided with a connecting ring (7), the side of the connecting ring (7) is provided with a limiting groove (8), the middle of the limiting groove (8) is fixedly connected to a fixing column (9), the middle of the fixing column (9) is fitted with a spring (10), and the middle of the cotton removal disc (5) is fixedly connected to a limiting slider (11) at a position corresponding to the limiting groove (8).

2. A hydraulic drive flexible bale plucker according to claim 1 wherein: The separator cylinder (4) is located on both sides of the cotton removal disc (5), and fastening bolts are inserted in the middle of the separator cylinder (4) at both ends of the rotating shaft (1).

3. The flexible hydraulic driven cotton stripper mechanism of claim 1, wherein: Multiple cotton-removing teeth (6) are arranged in a circular array on both sides of the cotton-removing disc (5). The end of each cotton-removing tooth (6) near the central axis of the cotton-removing disc (5) is set as an inclined surface. Each cotton-removing tooth (6) is a rubber block.

4. The hydraulic drive flexible bale plucker of claim 1 wherein: The rotating shaft (1) is slidably connected to the separator cylinder (4) and the connecting ring (7) via splines.

5. The hydraulic drive flexible bale plucker of claim 1 wherein: The cross-sectional shape of the connecting ring (7) is set to "H" shape, and the two side rings of the connecting ring (7) are located on both sides of the cotton removal disc (5).

6. The hydraulic drive flexible bale plucker of claim 1 wherein: The fixed column (9) is configured as an arc-shaped structure, and the limiting groove (8) is configured as an arc-shaped structure.

7. The hydraulic drive flexible bale plucker of claim 1 wherein: The limiting slider (11) is adapted to the limiting groove (8), and the limiting slider (11) is located in the middle of the limiting groove (8).

8. The hydraulic drive flexible bale plucker of claim 1 wherein: The fixed post (9) passes through the middle of the limiting slider (11), and the spring (10) is located on one side of the limiting slider (11).

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