Picking roller for cotton picker

Abstract

The invention relates to a picking roller for a cotton picker, and belongs to the technical field of components of cotton pickers. The picking roller comprises a mandrel and brush bodies, each brush body comprises a long-strip-shaped steel belt and brushes, each steel belt is formed by bending a thin plate, the cross section of each steel belt is in a first U shape, one end of each brush is embedded into a U-shaped opening of the corresponding steel belt and is pressed tightly, the mandrel is sleeved with a plurality of flange plates at intervals, and protruding corner portions with the same number as the brush bodies are formed in the circumferential direction of the flange plates at intervals. A second U-shaped groove with an outward opening is formed in each corner, a screw hole is formed in one side wall of each groove, the steel belt is embedded into the grooves, corresponding to the corners in the axial direction, of the flange plates along the width side of the steel belt, the steel belt penetrates through the grooves, corresponding to the corners in the axial direction, of the flange plates in the length direction of the steel belt, and a set screw penetrates through the screw holes to fix and limit the steel belt in the grooves. According to the picking roller, the flange plates are sleeved on the mandrel, and the brush body is a steel belt formed by bending a thin plate, so that the weight is reduced, and the brush body is very convenient to mount and dismount.

Description

Technical Field

[0001] This invention relates to a brush roller body, a component for picking cotton on a cotton harvester, belonging to the technical field of cotton picking (A01D 46 / 14) using a cotton picker. Background Technology

[0002] The brush roller type picking roller is a core component of the picking platform in a light cotton harvester, such as... Figure 1 As shown, the picking roller assembly 2 is installed inside the picking platform 1 of the cotton harvester. The performance of the picking roller has a significant impact on the quality of cotton harvesting. Currently, the picking rollers of existing cotton harvesters generally consist of multiple long steel plates mounted outside the mandrel, with steel brushes installed on these plates, as disclosed in Chinese Patent CN201720543889.7, "Brush Roller Body for Cotton Picking Platform"; or a steel rotating cylinder is fitted outside the mandrel, with brushes installed around its outer circumference. These existing picking roller structures all involve heavy steel plates, making installation inconvenient and energy-intensive. Furthermore, the dense arrangement of the brushes, secured with bolts, results in a very dense bolt arrangement, making bolt installation and removal extremely inconvenient. Since the brushes on the picking roller are consumable parts, they require frequent replacement due to wear during cotton harvesting. The excessively heavy steel plate structure and dense bolts make brush installation and removal extremely time-consuming, severely hindering cotton harvesting efficiency. Summary of the Invention

[0003] The technical problem to be solved by this invention is: how to reduce the weight of the picking roller and make it easier to install, disassemble and replace the brush.

[0004] The technical solution proposed by this invention to solve the above-mentioned technical problems is as follows: a picking roller for a cotton harvester, comprising a mandrel and multiple long strip-shaped brush bodies. Each brush body includes a long strip-shaped steel strip and brushes. The steel strip is bent from a thin plate, with a cross-section forming a first U-shape. The first U-shape gradually narrows from the inside to the opening. One end of each brush is embedded in the U-shaped opening of the steel strip and pressed tightly. Multiple brushes are densely pressed along the length of the steel strip and perpendicular to the steel strip. Multiple flanges are spaced on the mandrel. The flanges have protruding corners spaced circumferentially, the same number as the number of brush bodies. Each corner has a groove with an outward opening forming a second U-shape. The second U-shape gradually narrows from the inside to the opening. A screw hole is provided on one side wall of the groove. The steel strip is embedded along its width into the grooves of the multiple flanges corresponding to the axial corners. The steel strip passes through the grooves of the multiple flanges corresponding to the axial corners along its length. Set screws pass through the screw holes to fix the steel strip within the grooves. The multiple brush bodies are arranged axially parallel to the mandrel and spaced around the outer circumference of the mandrel.

[0005] Furthermore, a small inwardly recessed groove is formed on one side of the groove, and a pad strip of the same length as the steel strip is provided between one side wall of the groove and the steel strip. The pad strip is embedded in the grooves and small grooves at the corresponding corners of multiple flanges along its width. The pad strip passes through the grooves at the corresponding corners of multiple flanges along its length. One end of the pad strip is bent into an L-shape and has a countersunk hole at the insertion point of the groove. The set screw passes through the screw hole and the countersunk hole to fix the pad strip and the steel strip within the groove.

[0006] Furthermore, a flange is formed on the outer edge of the groove, and a step is formed on the steel strip toward the brush side. The inner inclined surface of the flange and the outer inclined surface of the step are close to each other so that the steel strip and the groove are snapped together.

[0007] Furthermore, the top surface of the set screw is an inclined surface that mates with the inner side of the groove.

[0008] The beneficial effects of this invention are: 1) Since only a few flanges are fitted onto the mandrel, the weight is greatly reduced compared to existing rotating cylinders or mounting steel plates; 2) Since the brush body is a thin plate bent into a U-shaped cross-section steel strip, the brush is pressed into the U-shaped opening of the steel strip, and the brush body consists of only a few parallel strips to the mandrel, the weight is also greatly reduced compared to existing steel plate brushes; 3) The steel strip of the brush body is fixed in the U-shaped groove at the circumferential corner of the flange by set screws. The flanges are only fitted at intervals along the mandrel, so new brush bodies can be reinstalled simply by removing the damaged brush body from the flanges, making the installation and removal of the brush body very convenient; 4) Fixing the steel strip of the brush body in the groove of the flange with a shim strip can greatly limit the brush body from being thrown off the flange of the mandrel during rotation; 5) Due to the interlocking of the flange forming the groove with the step of the steel strip, the steel strip is better constrained in the groove, further limiting the brush from being thrown off the rotating cylinder of the mandrel during rotation. Attached Figure Description

[0009] The following description, in conjunction with the accompanying drawings, further illustrates a picking roller for a cotton harvester according to the present invention.

[0010] Figure 1 This is a cross-sectional view of the picking platform of an existing cotton harvester.

[0011] Figure 2 This is a schematic diagram of the structure of the picking roller according to an embodiment of the present invention.

[0012] Figure 3 From Figure 2 A schematic diagram of the structure of the brush body after decomposition.

[0013] Figure 4 yes Figure 2 Sectional view along the AA direction.

[0014] Figure 5From Figure 4 A sectional view of the flange section after decomposition.

[0015] Figure 6 yes Figure 4 A magnified view of a portion of point C.

[0016] Figure 7 From Figure 6 A schematic diagram of the corner and groove structure of the decomposed part.

[0017] Figure 8 yes Figure 3 Enlarged schematic diagram of the BB-direction section.

[0018] Figure 9 This is a first perspective view of the picking roller according to an embodiment of the present invention.

[0019] Figure 10 This is a second perspective view of the picking roller according to an embodiment of the present invention. Detailed Implementation Example

[0020] The picking roller for the cotton harvester in this embodiment, such as Figure 2 , Figure 9 and Figure 10 As shown, it includes a spindle 3 and multiple long, strip-shaped brush bodies 4. Figure 3 and Figure 4 As shown, the brush body 4 includes a long strip of steel strip 4-1 and a brush 4-2. The steel strip 4-1 is made of a thin plate bent into a first U-shape in cross-section. The first U-shape gradually narrows from the inside to the opening. One end of the brush 4-2 is embedded in the U-shaped opening of the steel strip and pressed tightly, as shown in Figure 3. Figure 9 As shown, numerous brushes 4-2 are densely pressed along the length of the steel strip 4-1 and are all perpendicular to the steel strip 4-1, with almost no gaps between each brush 4-2. Figure 2 and Figure 3 Brush 4-2 in the diagram is for illustrative purposes; therefore, the spacing between brushes 4-2 is relatively large. For example... Figure 2 , Figure 9 and Figure 10 As shown, multiple flanges 5 are spaced apart on the mandrel 3; in this embodiment, four flanges 5 are selected. Figure 4 , Figure 9 and Figure 10 As shown, the flange 5 has protruding corner portions 6 at circumferential intervals, the same number as the brush bodies 4. In this embodiment, the flange 5 has six corner portions 6, therefore the brush bodies 4 have six segments. Figure 5 As shown, corner 6 has a groove 7 with an outward opening in a second U-shape, the second U-shape gradually narrowing from the inside to the opening, and a screw hole 8 is provided on one side wall of the groove 7. Figure 6As shown, the steel strip 4-1 is embedded along one side of its width into the grooves 7 of the flanges 5 corresponding to the axial corners 6; as Figure 9 and Figure 10 As shown, the steel strip 4-1 passes along its length through the grooves 7 of the corresponding corners 6 of multiple flanges 5 along the axial direction. Figure 6 As shown, the steel strip 4-1 is fixed within the groove 7 by passing the set screw 9 through the screw hole 8. Figure 9 and Figure 10 As shown, multiple brush bodies 4 are arranged axially parallel to the spindle 3 and spaced apart around the outer circumference of the spindle 3.

[0021] This embodiment further includes: such as Figure 5 and Figure 6 As shown, a small inwardly recessed groove 10 is formed on one side of the groove 7. A pad strip 11 of the same length as the steel strip 4-1 is also provided between one side wall of the groove 7 and the steel strip 4-1. The pad strip 11 is embedded along its width into the grooves 7 and small grooves 10 of the flanges 5 at their corresponding axial corners 6. The pad strip 11 passes through the grooves 7 of the flanges 5 at their corresponding axial corners 6 along its length. One end of the pad strip 11 is bent into an L-shape and has a countersunk hole at the insertion point into the groove. A set screw 9 passes through the screw hole 8 and the countersunk hole to fix the steel strip 4-1 within the groove 7, while simultaneously locking the pad strip 11. The top surface of the set screw 9 is a beveled surface that mates with the inner side of the groove 7.

[0022] This embodiment further includes: such as Figure 7 As shown, a flange 12 is formed on the outer edge of the groove 7; as Figure 8 As shown, the steel strip 4-1 forms a step 13 towards the brush 4-2 side; as Figure 6 As shown, the inner inclined surface of flange 12 and the outer inclined surface of step 13 are close to each other, so that steel strip 4-1 and groove 7 form a snap.

[0023] like Figure 6 and Figure 8 As shown, the brush 4-2 is formed as follows: a steel wire 14 of the same length as the steel wire 4-1 is inserted through the center of the first U-shaped groove of the steel strip 4-1, and a plastic wire is wrapped around the steel wire 14 to fill the first U-shaped groove and press it tightly. Then, the plastic wire extends vertically from the opening of the first U-shaped groove to form the arm of the brush 4-2. Then, bristles are pressed into the empty end of the arm of the brush 4-2 to finally form the brush 4-2.

[0024] The above description is only a preferred embodiment of the present invention, but the present invention is not limited thereto. For example: 1) the number of flanges 5 can also be two, three, five or other numbers; 2) the number of protruding corners 6 and brush bodies 4 of flanges 5 can also be three, four, five, eight or other numbers; all equivalent substitutions or equivalent changes made to the concept and technical solutions of the present invention should be covered within the protection scope of the present invention.

Claims

1. A picking roller for a cotton harvester, comprising a mandrel and multiple elongated brush bodies, wherein each brush body comprises an elongated steel strip and brushes, characterized in that... The steel strip is formed by bending a thin plate into a first U-shape, which gradually narrows from the inside to the opening. One end of the brush is embedded in the U-shaped opening of the steel strip and pressed tightly. Multiple brushes are densely pressed along the length of the steel strip and perpendicular to the steel strip. Multiple flanges are spaced on the mandrel. The flanges have protruding corners at circumferential intervals, the same number as the number of brush bodies. Each corner has a groove with an outward opening in a second U-shape, which gradually narrows from the inside to the opening. One side wall of the groove has a screw hole. The steel strip is embedded in the grooves of the multiple flanges along its width, corresponding to the axial corners. The steel strip passes through the grooves of the multiple flanges along its length. Set screws are used to fix the steel strip within the grooves through the screw holes. Multiple brush bodies are arranged axially parallel to the mandrel and spaced around the outer circumference of the mandrel.

2. The picking roller for a cotton harvester according to claim 1, characterized in that: A small groove extending inward is formed on one side of the groove. A pad strip of the same length as the steel strip is also provided between one side wall of the groove and the steel strip. The pad strip is embedded in the grooves and small grooves at the corresponding corners of multiple flanges along its width. The pad strip passes through the grooves at the corresponding corners of multiple flanges along its length. One end of the pad strip is bent into an L-shape and has a countersunk hole at the insertion point of the groove. The set screw passes through the screw hole and the countersunk hole to fix the pad strip and the steel strip within the groove.

3. The picking roller for a cotton harvester according to claim 1 or 2, characterized in that: The outer edge of the groove has a flange, and the steel strip forms a step towards the brush side. The inner inclined surface of the flange and the outer inclined surface of the step are close to each other so that the steel strip and the groove are snapped together.

4. The picking roller for a cotton harvester according to claim 3, characterized in that: The top surface of the set screw is an inclined surface that mates with the inner side of the groove.

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