Alfalfa stubble collection device

By using the internally threaded rectangular block and rectangular bolt connection and the electric telescopic rod design, the problems of cumbersome plow blade replacement and inconvenient cleaning of the tow rod are solved, realizing quick replacement and convenient cleaning, and improving the operating efficiency of the alfalfa stubble collection device.

CN224538759UActive Publication Date: 2026-07-24DONGYING ACAD OF AGRI SCI
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGYING ACAD OF AGRI SCI
Filing Date
2025-09-08
Publication Date
2026-07-24

Smart Images

  • Figure CN224538759U_ABST
    Figure CN224538759U_ABST
Patent Text Reader

Abstract

The utility model discloses an alfalfa stubble collecting device, including first mounting plate, plough blade, second mounting plate, first mounting plate bottom is provided with installation component, first mounting plate top both sides hinged setting has motorized stretch -shorten rod, installation component includes mounting bracket, mounting bracket bottom is provided with a plurality of rectangle mouth, plough blade top is provided with internal thread rectangle block. The utility model discloses through plough blade top internal thread rectangle block inserts rectangle mouth, when the screw -threaded joint of the aperture butt joint in the screw -threaded rectangle block, namely through bolt tight in internal thread rectangle block to fixed it, when the plough blade of leaning in the middle appears damage, namely only need to dismantle the bolt at this place, can change the plough blade, and it is more quick and convenient to operate, when needing to clean the support rod, through motorized stretch -shorten rod and pull second mounting plate to make second mounting plate fold, namely the staff is cleaned to the support rod conveniently.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of alfalfa technology, specifically to an alfalfa stubble collection device. Background Technology

[0002] Alfalfa stubble breaking is a key agronomical measure in alfalfa cultivation management. It mainly refers to the mechanical process (such as disc harrows and rotary tillers) used during the alfalfa growth cycle to break up and loosen the remaining alfalfa stubble and topsoil in the field. This measure is usually implemented after alfalfa harvesting or before crop rotation. Its core functions include breaking up soil compaction, improving soil aeration and permeability, and creating a more suitable environment for alfalfa root growth. Simultaneously, breaking up the stubble accelerates straw decomposition, increases soil organic matter content, and enhances soil fertility.

[0003] The existing Chinese patent announcement number CN217850010U, entitled "An Alfalfa Stubble Collection Device," explicitly states in its abstract that "This utility model relates to the field of alfalfa harvesting, specifically an alfalfa stubble collection device, including a vehicle body. A fixed frame is installed at the rear of the vehicle body. An installation shaft is connected to the side of the fixed frame away from the vehicle body. Multiple plow blades are detachably installed on the outside of the installation shaft. A connecting rod is fixedly connected to the top of the fixed frame. An installation plate is connected to the end of the connecting rod away from the fixed frame via a connecting block. Multiple drag rods are fixedly connected to the bottom of the installation plate. With only a few spare plow blades and installation sleeves, damaged plow blades can be replaced and reused, avoiding the need for the entire device to stop working and reduce efficiency. Even if a damaged plow blade cannot be repaired, it will not affect the continued use of other plow blades, preventing a situation where the damage to one plow blade renders the others unusable, thus avoiding resource waste. Separating sleeves are provided between adjacent installation sleeves, allowing the spacing between plow blades to be selected according to the alfalfa planting interval, enabling the plow blades to work according to the alfalfa density."

[0004] However, in this technology, when it is necessary to disassemble and replace the plow blades in the middle, the mounting shaft must be disassembled first, and then the outer plow blades must be disassembled before the plow blades in the middle can be disassembled and replaced. After that, all the plow blades need to be installed back on the mounting shaft, and then the mounting shaft needs to be fixed again. The operation involves many steps and is somewhat inconvenient. In addition, during the process of collecting and pushing alfalfa stubble with the tow bar, a large amount of alfalfa stubble will remain on the tow bar. Since the tow bar is always pointing downwards and cannot be adjusted, it greatly affects the subsequent cleaning of the tow bar by the staff. Utility Model Content

[0005] The purpose of this invention is to provide an alfalfa stubble collection device to solve the problems mentioned in the background art, such as the numerous steps involved in disassembling and replacing the central plow blade, and the inability to adjust the tow bar because it always faces downwards, which greatly affects the subsequent cleaning of the tow bar by the workers.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An alfalfa stubble collection device includes a first mounting plate, a plow blade, and a second mounting plate. The bottom of the first mounting plate is provided with a mounting assembly, and electric telescopic rods are hinged to both sides of the top of the first mounting plate. The second mounting plate is rotatably connected to the rear of the first mounting plate, and the telescopic ends of the electric telescopic rods are rotatably connected to both sides of the top of the second mounting plate. The mounting assembly includes a mounting bracket with multiple rectangular openings at the bottom and an internally threaded rectangular block at the top of the plow blade.

[0007] Preferably, the mounting bracket is slidably connected to the first mounting plate, and the internally threaded rectangular block is installed and removed from the rectangular opening.

[0008] Preferably, a through-hole is provided behind the rectangular opening, and a bolt is installed inside the through-hole, which is threadedly connected to the internally threaded rectangular block.

[0009] Preferably, a first electric push rod is provided on the inner side of the first mounting plate, and the telescopic end of the first electric push rod is connected to the mounting bracket.

[0010] Preferably, a connecting plate is slidably disposed at the bottom of the second mounting plate, and a support rod is disposed at the bottom of the connecting plate.

[0011] Preferably, a connecting rod is provided in front of the second mounting plate, and a connecting pipe is provided behind the first mounting plate, wherein the connecting rod and the connecting pipe are rotatably connected.

[0012] Preferably, a second electric push rod is provided on the inner side of the second mounting plate, and the telescopic end of the second electric push rod is connected to the connecting plate.

[0013] The beneficial effects of this utility model are: This invention involves inserting the internally threaded rectangular block at the top of the plow blade into a rectangular opening. The opening aligns with the threaded hole in the internally threaded rectangular block, and the plow blade is secured by tightening bolts into it. When the plow blade near the center is damaged, the bolts at that location can be removed to replace the blade, making the operation faster and more convenient. When the support rod needs cleaning, the second mounting plate is pulled by an electric telescopic rod, causing the second mounting plate to fold, and the support rod to face backward, making it convenient for workers to clean the support rod. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the disconnected structure of the first mounting plate and the second mounting plate of this utility model; Figure 3 This is a schematic diagram of the bottom structure of the first mounting plate of this utility model; Figure 4 This is a schematic diagram of the second mounting plate installation structure of this utility model.

[0015] In the diagram: 1. First mounting plate; 11. Plow blade; 12. Mounting bracket; 13. Internally threaded rectangular block; 14. Rectangular opening; 2. First electric push rod; 21. Through hole; 22. Bolt; 23. Connecting pipe; 24. Electric telescopic rod; 3. Second mounting plate; 31. Connecting plate; 32. Connecting rod; 33. Support rod; 34. Second electric push rod. Detailed Implementation

[0016] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0017] Please refer to Figures 1-4 The alfalfa stubble collection device mentioned in this utility model includes a first mounting plate 1, a plow blade 11, and a second mounting plate 3. The first mounting plate 1 and the second mounting plate 3 are mounting structures used to install other structures. The plow blade 11 is used to cut alfalfa stubble. The front of the first mounting plate 1 is the vehicle body. The first mounting plate 1 is fixedly mounted on the vehicle body by welding or bolts or other existing methods. The vehicle body is the same as the vehicle body in the background technology patent, which is a conventional technical means for those skilled in the art. The mounting frame 12 is slidably connected to the first mounting plate 1. The inner side of the first mounting plate 1 is provided with a first electric push rod 2. The first electric push rod 2 is a servo electric push rod. The telescopic end of the first electric push rod 2 is connected to the mounting frame 12. That is, the first electric push rod 2 drives the mounting frame 12 to telescopic, thereby adjusting the height of the plow blade 11. All electrical equipment in the device is controlled by the same external computer PLC intelligent controller. Equipment that needs to be debugged in advance is debugged in advance, which is a conventional technical means for those skilled in the art. The mounting assembly includes a mounting bracket 12, with multiple rectangular openings 14 at the bottom. A threaded rectangular block 13 is mounted on the top of the plow blade 11. The threaded rectangular block 13 is detachable and removable within the rectangular openings 14. A through-hole 21 is located behind the rectangular opening 14, and a bolt 22 is installed inside the through-hole 21. The bolt 22 is threadedly connected to the threaded rectangular block 13. Specifically, by inserting the threaded rectangular block 13 at the top of the plow blade 11 into the rectangular opening 14, the through-hole 21 aligns with the threaded end of the threaded rectangular block 13, and the bolt 22 is tightened into the threaded rectangular block 13, thus securing it. When the plow blade 11 near the center is damaged, only the bolt 22 at that location needs to be removed to replace the plow blade 11, making the operation faster and more convenient.

[0018] A connecting plate 31 is slidably provided at the bottom of the second mounting plate 3. A support rod 33 is provided at the bottom of the connecting plate 31. A second electric push rod 34 is provided on the inner side of the second mounting plate 3. The telescopic end of the second electric push rod 34 is connected to the connecting plate 31. That is, the connecting plate 31 is extended and retracted by the second electric push rod 34, thereby adjusting the height of the support rod 33. The alfalfa stubble is collected and cleaned by the support rod 33.

[0019] The telescopic ends of the electric telescopic rod 24 are rotatably connected to the top two sides of the second mounting plate 3. The bottom of the first mounting plate 1 is provided with a mounting assembly. The electric telescopic rod 24 is hinged to the top two sides of the first mounting plate 1. The electric telescopic rod 24 is a servo electric telescopic rod. The two electric telescopic rods 24 are synchronously controlled by an external PLC intelligent controller. A connecting rod 32 is provided in front of the second mounting plate 3, and a connecting pipe 23 is provided behind the first mounting plate 1. The connecting rod 32 and the connecting pipe 23 are rotatably connected, so that the second mounting plate 3 folds behind the first mounting plate 1. When it is necessary to clean the support rod 33, the second mounting plate 3 is pulled by the electric telescopic rod 24, so that the second mounting plate 3 folds and the support rod 33 faces backward, which makes it convenient for the staff to clean the support rod 33.

[0020] The working principle of this utility model is as follows: the first electric push rod 2 drives the mounting frame 12 to extend and retract, thereby adjusting the height of the plow blade 11, which cuts the alfalfa stubble. The second electric push rod 34 drives the connecting plate 31 to extend and retract, thereby adjusting the height of the support rod 33, which collects and cleans the alfalfa stubble. The internally threaded rectangular block 13 at the top of the plow blade 11 is inserted into the rectangular opening 14, at which point the through hole 21 aligns with the threaded opening in the internally threaded rectangular block 13. The bolt 22 is tightened into the internally threaded rectangular block 13 to fix it. When the plow blade 11 near the middle is damaged, only the bolt 22 at that point needs to be removed to replace the plow blade 11, making the operation faster and more convenient. When it is necessary to clean the support rod 33, the second mounting plate 3 is pulled by the electric telescopic rod 24, thereby folding the second mounting plate 3, and the support rod 33 faces backward, which makes it convenient for workers to clean the support rod 33.

[0021] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An alfalfa stubble collection device, characterized in that: Includes a first mounting plate (1), a plow blade (11), and a second mounting plate (3). The bottom of the first mounting plate (1) is provided with a mounting assembly. Electric telescopic rods (24) are hinged on both sides of the top of the first mounting plate (1). The second mounting plate (3) is rotatably connected to the rear of the first mounting plate (1). The telescopic ends of the electric telescopic rods (24) are rotatably connected to both sides of the top of the second mounting plate (3). The mounting assembly includes a mounting bracket (12), the bottom of which is provided with a plurality of rectangular openings (14), and the top of the plow blade (11) is provided with an internally threaded rectangular block (13).

2. The alfalfa stubble collection device according to claim 1, characterized in that, The mounting bracket (12) is slidably connected to the first mounting plate (1), and the internally threaded rectangular block (13) is installed and removed in the rectangular opening (14).

3. The alfalfa stubble collection device according to claim 1, characterized in that, A through-hole (21) is provided behind the rectangular opening (14), and a bolt (22) is installed inside the through-hole (21). The bolt (22) is threadedly connected to the internally threaded rectangular block (13).

4. The alfalfa stubble collection device according to claim 1, characterized in that, The first mounting plate (1) has a first electric push rod (2) on its inner side, and the telescopic end of the first electric push rod (2) is connected to the mounting bracket (12).

5. The alfalfa stubble collection device according to claim 1, characterized in that, The second mounting plate (3) has a connecting plate (31) slidably disposed at the bottom, and the connecting plate (31) has a support rod (33) at the bottom.

6. The alfalfa stubble collection device according to claim 1, characterized in that, A connecting rod (32) is provided in front of the second mounting plate (3), and a connecting pipe (23) is provided behind the first mounting plate (1). The connecting rod (32) and the connecting pipe (23) are rotatably connected.

7. The alfalfa stubble collection device according to claim 5, characterized in that, The second mounting plate (3) has a second electric push rod (34) on its inner side, and the telescopic end of the second electric push rod (34) is connected to the connecting plate (31).