A motion guide structure of a cotton picking needle assembly on a cotton picker

Abstract

The utility model discloses a kind of movement guide structure of cotton picking needle assembly on cotton picker, specifically related to cotton needle guide structure technical field, including mounting plate, the one side of mounting plate is provided with linkage guide assembly, the linkage guide assembly includes the slider of being set in the one side of mounting plate, the one side of mounting plate facing slider is equipped with first sliding slot, the inner wall one side of first sliding slot is equipped with second sliding slot.The utility model is limited to the axial direction of needle body by the slider and second sliding slot, guide frame of T type cooperation, and the synchronous motion control of linkage guide assembly, ensure that cotton picking needle is accurately moved along preset trajectory, can be stably aligned boll, effectively reduce the phenomenon of leakage, simultaneously avoid needle body to collide with cotton plant, reduce cotton plant damage rate, guide frame and needle body coaxial arrangement, can directly guide the smooth entry of cotton after picking subsequent conveying channel, avoid cotton to be accumulated in the vicinity of cotton picking needle assembly, need not frequent shutdown cleaning, guarantee that cotton picker is continuously operated.

Description

Technical Field

[0001] This utility model relates to the technical field of cotton needle guiding structure, and more specifically, to a motion guiding structure for a cotton picking needle assembly on a cotton picking machine. Background Technology

[0002] As a core agricultural machine replacing manual cotton picking, the cotton harvester automates the process of separating and collecting cotton from the boll, significantly improving harvesting efficiency and reducing labor intensity. It has become a key piece of equipment for large-scale cotton cultivation. The cotton picking needle assembly is the core component of the cotton harvester that directly performs the picking action; its motion accuracy and guiding stability directly determine the picking quality and operational efficiency. However, the cotton picking needle assembly of existing cotton harvesters lacks sufficient precision in guiding the movement of the picking needles, making it difficult to accurately align with the cotton boll position. This can easily lead to picking deviations, resulting in some cotton bolls being missed, or damage to cotton plants due to collisions, affecting the subsequent growth of cotton plants. Furthermore, the lack of a guiding structure for harvested cotton means that cotton cannot smoothly enter the subsequent conveying channel after leaving the boll, easily accumulating near the picking needle assembly, causing channel blockages, requiring machine shutdown for cleaning, and reducing operational continuity. Additionally, the poor coordination stability of the various moving parts of the picking needle assembly (such as the needle body and connecting rods) makes them prone to friction and collisions with other parts during sliding or rotation, which not only accelerates component wear but also shortens the overall structural lifespan and increases equipment maintenance costs. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a motion guide structure for the cotton picking needle assembly on a cotton picking machine, which aims to solve the problems mentioned in the background art.

[0004] This utility model provides the following technical solution: a motion guide structure for a cotton picking needle assembly on a cotton picking machine, including a mounting plate, wherein a linkage guide assembly is provided on one side of the mounting plate; The linkage guide assembly includes a slider disposed on one side of the mounting plate, a first groove is provided on the side of the mounting plate facing the slider, and a second groove is provided on the inner wall side of the first groove. A limiting rod is fixedly provided on the slider, and a first deflection rod and a second deflection rod are sleeved on the limiting rod. One end of the first deflection rod and the second deflection rod are respectively provided with a sliding rod, and one end of each sliding rod extends into the first sliding groove and is slidably connected to the first sliding groove. Needles are provided at the end of the slider and on the outside of the slider rod, respectively.

[0005] Optionally, in one possible implementation, a mounting groove is provided on the side of the first slide groove away from the second slide groove. An electric push rod is provided in the mounting groove. The output end of the electric push rod extends to one end of the slider and is mounted on the mounting plate by bolts. A guide frame is provided at one end of the inner cavity of the first slide groove. The guide frame is fixed on the mounting plate. The needle body on the outside of the slide rod is in the same axial direction as the guide frame and is located in the middle of the guide frame and is slidably connected to the guide frame. Multiple needle bodies are threadedly connected to the slider and the slide rod respectively. The first deflection rod and the second deflection rod are stacked and are rotatably connected to the limiting rod. The slider is located in the second slide groove and is slidably connected to the second slide groove. The cross-sectional shapes of the slider and the second slide groove are combined to form a T-shape. The technical effects and advantages of this utility model are as follows: The T-shaped sliding block and the second slide groove and guide frame limit the axial movement of the needle body, and the synchronous motion control of the linkage guide component ensure that the cotton picking needle moves accurately along the preset trajectory, can stably align with the cotton boll, effectively reduce missed picking, and at the same time avoid the needle body from colliding with the cotton plant, reducing the cotton plant damage rate. The guide frame is coaxial with the needle body, which can directly guide the picked cotton into the subsequent conveying channel smoothly, avoid cotton accumulation near the cotton picking needle assembly, eliminate the need for frequent machine stops for cleaning, and ensure continuous operation of the cotton picker; The stacked rotation design of the first and second deflection rods and the stable sliding fit between the slider and the groove reduce friction and collision between the moving parts, reduce the wear rate of the parts, and extend the service life of the overall structure. The needle body is connected to the slider and slide rod by threads. When the needle body is worn or damaged, it can be quickly disassembled and replaced without disassembling the entire assembly, simplifying the maintenance process and reducing maintenance costs. Attached Figure Description

[0006] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0007] Figure 1 This is a front view of the overall structure of this utility model.

[0008] Figure 2 This is a top view of the overall structure of this utility model.

[0009] Figure 3This is a schematic diagram of the slider, needle body, limiting rod, first deflection rod, second deflection rod and slide bar of this utility model.

[0010] Figure 4 This is a schematic diagram of the mounting plate, second slide groove, first slide groove, guide frame, and electric push rod of this utility model.

[0011] Figure 5 This utility model Figure 3 Exploded view.

[0012] The attached figures are labeled as follows: 1. Mounting plate; 2. First slide groove; 3. Slider; 4. Limiting rod; 5. First deflection rod; 6. Second deflection rod; 7. Slide rod; 8. Needle body; 9. Mounting groove; 10. Electric push rod; 11. Guide frame; 12. Second slide groove. Detailed Implementation

[0013] 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.

[0014] This embodiment discloses a motion guide structure for the cotton picking needle assembly on a cotton harvester, which aims to solve the technical problems in the prior art where the cotton picking needle cannot accurately align with the cotton boll, resulting in missed picking or damage to the cotton plant, easy accumulation and blockage of cotton, and easy friction and collision between the needle body and other components.

[0015] As attached Figure 1 Appendix Figure 2 As shown, the motion guide structure of this cotton picking needle assembly includes a mounting plate 1, and a linkage guide component is provided on one side of the mounting plate 1. This linkage guide component provides precise guidance for the movement of the cotton picking needle.

[0016] As attached Figure 4 As shown, a first groove 2 is formed on the side of the mounting plate 1 facing the slider 3, and a second groove 12 is formed on the inner wall of the first groove 2. The slider 3 is located in the second groove 12 and is slidably connected to it. The cross-sectional shapes of the slider 3 and the second groove 12 are combined to form a T-shape. This structure ensures that the slider 3 will not deviate during sliding, thus improving motion stability. A mounting groove 9 is formed on the side of the first groove 2 away from the second groove 12. An electric push rod 10 is installed in the mounting groove 9. The electric push rod 10 is bolted to the mounting plate 1, and its output end extends to one end of the slider 3 to drive the slider 3 to slide along the second groove 12. A guide frame 11 is provided at one end of the inner cavity of the first groove 2. The guide frame 11 is fixed to the mounting plate 1 and serves as a guide and limiter.

[0017] As attached Figure 3 Appendix Figure 5 As shown, a limiting rod 4 is fixedly installed on the slider 3. A first deflecting rod 5 and a second deflecting rod 6 are sleeved on the limiting rod 4. The two rods are stacked and rotatably connected to the limiting rod 4, allowing for flexible deflection. A sliding rod 7 is provided at one end of the first deflecting rod 5 and the second deflecting rod 6, and one end of each sliding rod 7 extends into the first sliding groove 2 and is slidably connected to the first sliding groove 2. A needle body 8 is provided at the end of the slider 3 and on the outside of the sliding rod 7. Multiple needle bodies 8 are threadedly connected to the slider 3 and the sliding rod 7, facilitating subsequent disassembly and replacement. The needle body 8 on the outside of the sliding rod 7 is on the same axis as the guide frame 11, and the needle body 8 is located in the middle of the guide frame 11 and is slidably connected to the guide frame 11, ensuring accurate movement trajectory of the needle body 8.

[0018] The specific working principle is as follows: The device is installed on the cotton harvester. When the cotton harvester starts working, the electric push rod 10 is activated, and its output end pushes the slider 3 to move linearly along the second slide groove 12. When the slider 3 moves, it drives the first deflection rod 5 and the second deflection rod 6 to move synchronously through the limit rod 4, thereby driving the slide rod 7 to slide in the first slide groove 2.

[0019] During the sliding of the slide bar 7, the guide frame 11 provides precise guidance to the needle 8 on the outside of the slide bar 7, ensuring that the needle 8 always moves along the preset trajectory, accurately aligning with the cotton boll, effectively preventing the picking position from deviating, and reducing missed picking and damage to the cotton plants. At the same time, the guide frame 11 can also guide the picked cotton smoothly into the subsequent conveying channel, preventing cotton from accumulating and clogging.

[0020] The stacked rotation of the first deflector rod 5 and the second deflector rod 6, as well as the T-shaped sliding fit between the slider 3 and the second slide groove 12, reduce friction and collision between components, thereby improving the service life and operational stability of the structure. The needle body 8 adopts a threaded connection, allowing for quick disassembly and replacement when wear or damage occurs, thus reducing maintenance costs.

[0021] The above are merely preferred embodiments of the present utility model and are 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 shall be included within the protection scope of the present utility model.

Claims

1. A motion guide structure for a cotton picking needle assembly on a cotton picking machine, comprising a mounting plate (1), characterized in that: A linkage guide component is provided on one side of the mounting plate (1); The linkage guide assembly includes a slider (3) disposed on one side of the mounting plate (1), and a first groove (2) is provided on the side of the mounting plate (1) facing the slider (3), and a second groove (12) is provided on the inner wall side of the first groove (2). A limiting rod (4) is fixedly provided on the slider (3). A first deflection rod (5) and a second deflection rod (6) are sleeved on the limiting rod (4). A sliding rod (7) is provided at one end of the first deflection rod (5) and the second deflection rod (6). One end of each sliding rod (7) extends into the first sliding groove (2) and is slidably connected to the first sliding groove (2). The end of the slider (3) and the outside of the slider (7) are respectively provided with needles (8).

2. The motion guide structure for the cotton picking needle assembly on a cotton harvester according to claim 1, characterized in that: The first slide (2) has an installation groove (9) on the side away from the second slide (12), and an electric push rod (10) is provided in the installation groove (9).

3. The motion guide structure for the cotton picking needle assembly on a cotton harvester according to claim 2, characterized in that: The output end of the electric push rod (10) extends to one end of the slider (3), and the electric push rod (10) is mounted on the mounting plate (1) by bolts.

4. The motion guide structure for the cotton picking needle assembly on a cotton harvester according to claim 1, characterized in that: A guide frame (11) is provided at one end of the inner cavity of the first slide (2), and the guide frame (11) is fixed on the mounting plate (1).

5. The motion guide structure for the cotton picking needle assembly on a cotton harvester according to claim 4, characterized in that: The needle body (8) on the outside of the slide bar (7) is on the same axis as the guide frame (11), and the needle body (8) is located in the middle of the guide frame (11) and is slidably connected to the guide frame (11).

6. The motion guide structure for the cotton picking needle assembly on a cotton harvester according to claim 1, characterized in that: The plurality of needle bodies (8) are threadedly connected to the slider (3) and the slide bar (7), respectively.

7. The motion guide structure for the cotton picking needle assembly on a cotton harvester according to claim 1, characterized in that: The first deflection rod (5) and the second deflection rod (6) are stacked, and both the first deflection rod (5) and the second deflection rod (6) are rotatably connected to the limiting rod (4).

8. The motion guide structure for the cotton picking needle assembly on a cotton harvester according to claim 1, characterized in that: The slider (3) is located in the second groove (12) and is slidably connected to the second groove (12). The cross-sectional shapes of the slider (3) and the second groove (12) are combined to form a T-shape.

Images