Cotton picker spindle with staggered tooth width large-small structure

Abstract

The utility model belongs to the technical field of mechanical cotton picking, and discloses a cotton picker spindle of a staggered tooth width large-small structure. Comprising a transmission part, a supporting part and a picking part, the transmission part is composed of a bevel gear and used for inputting power to a picking spindle, the supporting part is a cylindrical rod, the picking part is a conical rod full of three rows of hook teeth, each row is formed by sequentially and alternately arranging six large hook teeth and six small hook teeth, and the tooth pitches are equal. And the large hook teeth and the small hook teeth are arranged in sequence from the end part of the picking spindle. In the cotton picking operation, the small hook teeth flexibly and powerfully hook and wind out cotton, the large hook teeth resist collision of cotton straw and gravel, and therefore the hook teeth are designed to be different in size, cotton can be well hooked and picked, and wear resistance and collision resistance are achieved. The cotton picker is often used over time in the harvesting season, the working environment is severe, the cotton picker collides with cotton straw, gravel and the like, the large hook teeth in the picking spindle of the cotton picker with the staggered tooth width, large and small structure increase the strength of the hook teeth, the picking spindle is more wear-resistant and collision-resistant, and the small hook teeth meet the requirement for the picking rate of the cotton picker.

Description

Technical Field

[0001] This utility model relates to the field of mechanical cotton harvesting technology, specifically a cotton harvester spindle with an alternating tooth width structure. Background Technology

[0002] With the increasing scale and mechanization of cotton planting and production, large-scale cotton harvesting machines are now widely used for cotton picking. Currently, horizontal spindle cotton harvesters dominate the market, and the spindle, as a key component of the horizontal spindle cotton harvester, has a crucial hook tooth structure that is essential for cotton harvesting. Therefore, it is necessary to research, summarize, and innovate the hook tooth structure of the spindle. Currently, the hook tooth structure of the spindle consists of three rows, with 12 hook teeth in each row. After one harvesting season, the hook teeth of the spindle experience significant wear, even leading to the peeling of the plating, which accelerates the oxidation and wear of the hook teeth.

[0003] Based on this, this utility model designs a cotton picker spindle with an alternating tooth width structure. The spindle has three rows of hook teeth on its conical surface, with 12 hook teeth in each row, arranged in an alternating order of large and small hook teeth. The spindle can achieve high-quality cotton picking while being wear-resistant and impact-resistant. Utility Model Content

[0004] The purpose of this invention is to provide a new hook tooth structure to solve the problems mentioned in the background art, such as the hook teeth being easily worn or even falling off due to impact.

[0005] To achieve the above objectives, this utility model provides the following technical solution: This utility model proposes a cotton picker spindle with an alternating tooth width structure, including a transmission part, a support part, and a picking part. The transmission part consists of a bevel gear for power input to the picker spindle; the support part is a cylindrical rod, connected to the transmission part at the left end and to the picking part at the right end; the picking part is a conical rod covered with hook teeth, with each row consisting of 6 large hook teeth and 6 small hook teeth arranged alternately, starting from the end of the picker spindle with large hook teeth, and the contact surface at the root of the hook teeth being the base surface; each large hook tooth consists of a front tooth surface, a back tooth surface, a tooth face, a rear tooth surface, and a base surface; each small hook tooth consists of a front tooth surface, a back tooth surface, a tooth face, a rear tooth surface, and a base surface.

[0006] Furthermore, the line of intersection between the tooth surface and the tooth back is the tooth cutting edge, the line of intersection between the tooth surface and the front tooth surface is the front tooth cutting edge, and the line of intersection between the tooth surface and the rear tooth surface is the rear tooth cutting edge.

[0007] Furthermore, the width of the large hook tooth cutting edge is 2mm, and the width of the small hook tooth cutting edge is 1mm.

[0008] Furthermore, the angle between the rear edge of the large hook tooth and the base surface is 134.94°; the angle between the edge of the large hook tooth and the front edge of the large hook tooth is 85°; the angle between the rear edge of the small hook tooth and the base surface is 134.94°; and the angle between the edge of the small hook tooth and the front edge of the small hook tooth is 85°.

[0009] Furthermore, the height between the large hook tooth cutting edge and the base surface is 1mm, and the height between the small hook tooth cutting edge and the base surface is 1mm.

[0010] Furthermore, the distance between the large hook tooth and the small hook tooth is 1 mm.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the six large hook teeth distributed in an alternating pattern improve the overall hook tooth strength of the picking spindle, making it more wear-resistant and impact-resistant in cotton picking operations in the field, thus increasing the working life of the picking spindle; the six small hook teeth distributed in an alternating pattern complete the cotton picking task and achieve a high picking rate without changing the overall strength of the picking spindle, and the distance between the large and small hook teeth is equal, so it can continue to be used in existing cotton pickers. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[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 overall rotating structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the hook tooth structure of this utility model viewed from direction B;

[0016] Figure 4 This is an enlarged schematic diagram of the small hook tooth I and the large hook tooth II of this utility model.

[0017] The attached diagram lists the components represented by each number as follows:

[0018] 1-Transmission part, 2-Support part, 3-Harvesting part, 4-Large hook tooth, 5-Small hook tooth, 6-Front tooth surface of large hook tooth, 7-Back of large hook tooth, 8-Tooth surface of large hook tooth, 9-Rear tooth surface of large hook tooth, 10-Front tooth surface of small hook tooth, 11-Back of small hook tooth, 12-Tooth surface of small hook tooth, 13-Rear tooth surface of small hook tooth, 14-Base surface, 15-Front edge of small hook tooth, 16-Edge edge of small hook tooth, 17-Rear edge of small hook tooth, 18-Front edge of large hook tooth, 19-Edge edge of large hook tooth, 20-Rear edge of large hook tooth, α-Angle between front edge of small hook tooth and edge of small hook tooth, β-Angle between rear edge of small hook tooth and base surface, λ-Angle between front edge of large hook tooth and edge of large hook tooth, θ-Angle between rear edge of large hook tooth and base surface. Detailed Implementation

[0019] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4This utility model provides a technical solution: a cotton harvester spindle with an alternating tooth width structure, comprising a transmission part 1, a support part 2, and a harvesting part 3, characterized in that: the transmission part 1 consists of a bevel gear for power input to the spindle; the support part 2 is a cylindrical rod, with its left end connected to the transmission part 1 and its right end connected to the harvesting part 3; the harvesting part 3 is a conical rod with three rows of hook teeth, each row consisting of six large hook teeth 4 and six small hook teeth 5 arranged alternately, from... The large hook tooth 4 begins at the end of the spindle, with the base surface 14 at the root of the hook tooth. The large hook tooth 4 is composed of the front tooth surface 6, the back tooth 7, the tooth surface 8, the rear tooth surface 9, and the base surface 14. The small hook tooth 5 is composed of the front tooth surface 10, the back tooth 11, the tooth surface 12, the rear tooth surface 13, and the base surface 14. The intersection of the tooth surface 8 and the back tooth 7 of the large hook tooth forms the cutting edge 19. The tooth surface 8 and the front tooth surface 7 of the large hook tooth... The line of intersection of tooth surface 6 is the front edge 18 of the large hook tooth; the line of intersection of the tooth surface 8 of the large hook tooth and the rear tooth surface 9 of the large hook tooth is the rear edge 20 of the large hook tooth; the line of intersection of the tooth surface 12 of the small hook tooth and the back tooth 11 of the small hook tooth is the edge 16 of the small hook tooth; the line of intersection of the tooth surface 12 of the small hook tooth and the front tooth surface 10 of the small hook tooth is the front edge 15 of the small hook tooth; the line of intersection of the tooth surface 12 of the small hook tooth and the rear tooth surface 13 of the small hook tooth is the rear edge 17 of the small hook tooth; the angle between the rear edge 20 of the large hook tooth and the base surface 14 is 134.94°; The angle between the large hook tooth edge 19 and the large hook tooth front edge 18 is 85°; the angle between the small hook tooth rear edge 17 and the base surface 14 is 134.94°; the angle between the small hook tooth edge 16 and the small hook tooth front edge 15 is 85°; the width of the large hook tooth edge 19 is 2mm; the width of the small hook tooth edge 16 is 1mm; the height of the large hook tooth edge 19 and the small hook tooth edge 16 relative to the base surface 14 is 1mm; the distance between the large hook tooth 4 and the small hook tooth 5 is 1mm.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cotton harvester spindle with an alternating tooth width structure, comprising a transmission part (1), a support part (2), and a harvesting part (3), characterized in that: The transmission part (1) consists of a bevel gear used to rotate the picker; the support part (2) is a cylindrical rod with the left end connected to the transmission part (1) and the right end connected to the picking part (3); the picking part (3) is a conical rod with three rows of hook teeth, each row consisting of six large hook teeth (4) and six small hook teeth (5) arranged alternately, starting from the end of the picker as large hook teeth (4), and the contact surface at the root of the hook teeth is the base surface (14); the large hook teeth (4) consist of the front tooth surface (6), the back tooth surface (7), the tooth surface (8), the rear tooth surface (9), and the base surface (14); the small hook teeth (5) consist of the front tooth surface (10), the back tooth surface (11), the tooth surface (12), the rear tooth surface (13), and the base surface (14).

2. The cotton harvester spindle with an alternating tooth width structure according to claim 1, characterized in that: The line of intersection between the large hook tooth surface (8) and the large hook tooth back (7) is the large hook tooth edge (19); the line of intersection between the large hook tooth surface (8) and the large hook tooth front side surface (6) is the large hook tooth front edge (18); the line of intersection between the large hook tooth surface (8) and the large hook tooth rear side surface (9) is the large hook tooth rear edge (20); the line of intersection between the small hook tooth surface (12) and the small hook tooth back (11) is the small hook tooth edge (16); the line of intersection between the small hook tooth surface (12) and the small hook tooth front side surface (10) is the small hook tooth front edge (15); the line of intersection between the small hook tooth surface (12) and the small hook tooth rear side surface (13) is the small hook tooth rear edge (17).

3. The cotton harvester spindle with an alternating tooth width structure according to claim 2, characterized in that: The angle between the rear edge (20) of the large hook tooth and the base surface (14) is 134.94°; the angle between the front edge (18) of the large hook tooth and the rear edge (17) of the small hook tooth and the base surface (14) is 85°; the angle between the rear edge (17) of the small hook tooth and the base surface (14) is 134.94°; the angle between the front edge (15) of the small hook tooth and the rear edge (16) of the small hook tooth is 85°; the width of the rear edge (19) of the large hook tooth is 2mm; the width of the front edge (16) of the small hook tooth is 1mm; the height between the rear edge (19) of the large hook tooth and the rear edge (16) of the small hook tooth and the base surface (14) is 1mm; the distance between the large hook tooth (4) and the small hook tooth (5) is 1mm.

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