Roller top cover guide plate adjusting mechanism of double-longitudinal-axial-flow combine harvester
By adopting a combination structure of fixed base, adjusting screw and bolt on the dual longitudinal axial flow combine harvester, the problem of difficult guide plate adjustment is solved, the angle of the guide plate can be conveniently adjusted, and the crop adaptability and harvester efficiency are improved.
Patent Information
- Application Number
- CN202423108898.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-17
AI Technical Summary
The guide vane adjustment mechanism of traditional dual longitudinal axial flow combine harvesters is difficult to adjust, making it hard to adjust the guide vane angle according to different crops and moisture levels, resulting in blockage, high grain breakage rate, and low threshing rate.
The system employs a combination structure consisting of a fixed base, an adjusting screw, a guide plate tie rod connecting support, a left adjusting bolt, and a right adjusting bolt. The angle of the guide plate can be adjusted in a time-saving and labor-saving manner by adjusting the screw and bolt.
It enables convenient adjustment of the guide vane angle, improves crop adaptability and harvester efficiency, and reduces the risk of blockage and grain breakage.
Smart Images
Figure CN223528540U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of agricultural harvesting machinery, specifically relating to the adjustment mechanism of the guide plate of the drum top cover of a dual longitudinal axial flow combine harvester. Background Technology
[0002] The threshing drum top cover of the dual longitudinal axial flow combine harvester is equipped with guide plates, which slow down or increase the material conveying speed after the straw and other materials enter the threshing drum. During combine harvester operation, the straw enters the threshing drum for threshing. Depending on the crop type and the dryness of the straw at harvest, the volume and weight of the material entering the drum vary. When harvesting different crops and crops with different dryness levels, the angle of the guide plates needs to be adjusted to control the material conveying speed in the drum, which helps to improve clogging, reduce grain breakage rate, improve threshing efficiency, and reduce threshing loss rate.
[0003] The angle of the guide vanes on the top cover of the combine harvester directly affects the threshing effect and material conveying efficiency. A suitable guide vane angle ensures smooth material discharge, preventing blockages and accumulation, thereby improving threshing efficiency. Different crops have different requirements for guide vane angles. For example, when harvesting corn or wheat, the weight and volume of the straw and the size of the grains differ, requiring adjustments to the guide vane angle to ensure material passage and sufficient threshing time. If the guide vane angle is too small, material accumulates inside the drum, easily causing blockages. Furthermore, the prolonged time spent in the drum can lead to grain breakage. If the guide vane angle is too large, insufficient threshing time can result in a higher unthreshed rate. Therefore, a reasonable guide vane angle plays a crucial role in ensuring the harvesting quality and efficiency of the combine harvester.
[0004] Most domestic traditional dual longitudinal axial flow combine harvesters use a handle for adjusting the guide vane. This method is difficult to adjust, and the adjustment mechanism is prone to jamming due to dust accumulation or rust, making adjustment even more difficult. Summary of the Invention
[0005] To address the shortcomings and deficiencies of the existing technology described in the background information above, this utility model proposes an angle adjustment mechanism for the guide plate of the drum top cover of a dual longitudinal axial flow combine harvester. This utility model makes guide plate angle adjustment more time-saving and labor-saving, not only increasing the types of crops that the dual longitudinal axial flow combine harvester can harvest, but also improving the working efficiency of the dual longitudinal axial flow combine harvester.
[0006] To achieve the above objectives, the present invention proposes the following technical solution:
[0007] A guide plate adjustment mechanism for the top cover of a dual longitudinal axial flow combine harvester includes a fixed base, an adjusting screw, a guide plate tie rod connecting support, a guide plate tie rod, a left adjusting bolt, and a right adjusting bolt. The lower end of the fixed base is fixedly connected to the top cover of the drum. One side of the fixed base is fixedly connected to one side of the adjusting screw. The other side of the adjusting screw passes through the guide plate tie rod connecting support. The guide plate tie rod connecting support is fixedly connected to the guide plate tie rod. The left adjusting bolt and the right adjusting bolt are respectively located on the left and right sides of the guide plate tie rod connecting support. The adjusting screw passes through the left adjusting bolt and the right adjusting bolt and is threaded to them.
[0008] The lower end of the fixed seat is welded to the top cover of the drum, one side of the fixed seat is welded to one side of the adjusting screw, and the guide plate rod connecting support is welded to the guide plate rod.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0010] This invention adjusts the left and right adjusting bolts on both sides of the adjusting screw to displace the guide plate rod, thereby changing the angle of the guide plate. This adjustment method makes adjusting the angle of the guide plate of the dual longitudinal axial flow combine harvester more time-saving and labor-saving, not only increasing the types of crops that the dual longitudinal axial flow combine harvester can harvest, but also improving the working efficiency of the dual longitudinal axial flow combine harvester. Attached Figure Description
[0011] Figure 1 This is an installation diagram of this utility model;
[0012] Figure 2 This is a schematic diagram of the structure of this utility model;
[0013] 1. Fixed seat; 2. Adjusting screw; 3. Guide plate tie rod connecting support; 4. Guide plate tie rod; 5. Guide plate; 6. Left adjusting bolt; 7. Right adjusting bolt; 8. Drum top cover. Detailed Implementation
[0014] The following is in conjunction with the appendix Figure 1 and 2 The technical solution of this utility model will be further described in detail below with reference to the specific implementation scheme.
[0015] A guide plate adjustment mechanism for the top cover of a dual longitudinal axial flow combine harvester includes a fixed base 1, an adjusting screw 2, a guide plate tie rod connecting support 3, a guide plate tie rod 4, a left adjusting bolt 6, and a right adjusting bolt 7. The lower end of the fixed base 1 is fixedly connected to the top cover 8 of the drum. One side of the fixed base 1 is fixedly connected to one side of the adjusting screw 2. The other side of the adjusting screw 2 passes through the guide plate tie rod connecting support 3. The guide plate tie rod connecting support 3 is fixedly connected to the guide plate tie rod 4. The left adjusting bolt 6 and the right adjusting bolt 7 are respectively located on the left and right sides of the guide plate tie rod connecting support 3. The adjusting screw 2 passes through the left adjusting bolt 6 and the right adjusting bolt 7 and is threaded to them. By adjusting the left adjusting bolt 6 and the right adjusting bolt 7, the guide plate tie rod connecting support 3 drives the guide plate tie rod 4 to move left and right, thereby changing the angle of the guide plate 5 mounted on the guide plate tie rod 4.
[0016] The lower end of the fixed seat 1 is welded to the top cover 8 of the drum, one side of the fixed seat 1 is welded to one side of the adjusting screw 2, and the guide plate rod connecting support 3 is welded to the guide plate rod 4.
[0017] The guide plate 5 is bolted to the guide plate pull rod 4. When adjustment begins, tightening the left adjusting bolt 6 moves the guide plate pull rod 4 to the left, increasing the angle of the guide plate 5; tightening the right adjusting bolt 7 moves the guide plate pull rod 4 to the right, decreasing the angle of the guide plate 5, thus adjusting the angle of the guide plate 5. This adjustment method makes adjusting the guide plate angle of the dual longitudinal axial flow combine harvester more time-saving and labor-saving, not only increasing the types of crops that the dual longitudinal axial flow combine harvester can harvest, but also improving the working efficiency of the dual longitudinal axial flow combine harvester.
[0018] The dual longitudinal axial flow combine harvester drum top cover guide plate angle adjustment mechanism described in this utility model is easy and quick to install and simple to operate. It can effectively reduce the guide plate angle adjustment time, thereby improving the harvester's working efficiency.
[0019] The above description is only for illustrating the embodiments of this utility model and is not intended to limit this utility model. For those skilled in the art, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A guide plate adjustment mechanism for the top cover of a dual longitudinal axial flow combine harvester, comprising a fixed base (1), an adjusting screw (2), a guide plate tie rod connecting support (3), a guide plate tie rod (4), a left adjusting bolt (6), and a right adjusting bolt (7), characterized in that: The lower end of the fixed seat (1) is fixedly connected to the top cover of the drum (8). One side of the fixed seat (1) is fixedly connected to one side of the adjusting screw (2). The other side of the adjusting screw (2) passes through the guide plate rod connecting support (3). The guide plate rod connecting support (3) is fixedly connected to the guide plate rod (4). The left adjusting bolt (6) and the right adjusting bolt (7) are respectively set on the left and right sides of the guide plate rod connecting support (3). The adjusting screw (2) passes through the left adjusting bolt (6) and the right adjusting bolt (7) and is threaded to them.
2. The adjusting mechanism for the guide plate of the drum top cover of the dual longitudinal axial flow combine harvester according to claim 1, characterized in that: The lower end of the fixed seat (1) is welded to the top cover of the drum (8), one side of the fixed seat (1) is welded to one side of the adjusting screw (2), and the guide plate rod connecting support (3) is welded to the guide plate rod (4).