No-tillage planter lelo triangle press wheel assembly

Abstract

The no-tillage seeder Lelu triangle compaction wheel assembly belongs to agricultural machinery; the Lelu triangle compaction wheel is coaxially fixed on the middle part of the Lelu triangle shaft, the two ends of the Lelu triangle shaft are supported in the shaft hole of the fixedly arranged square hole shaft seat in the radial and axial directions and can rotate in the circumferential direction, and the seat plate is fixedly arranged on the outside of the square hole shaft seat, wherein the profile curve equation of the inner side wall surface of the four corners of the square hole shaft seat is: The assembly structure is novel, unique, reasonable, simple and compact, the compaction operation is stable, the operation quality is good, and the use is reliable.

Description

Technical Field

[0001] This invention pertains to agricultural machinery and mainly relates to a Reuleaux triangular roller assembly suitable for use with no-till seeders. Background Technology

[0002] In recent years, with the implementation of my country's "Northeast Black Soil Conservation Tillage Action Plan," the research, development, and application of no-till seeders that are beneficial to the protection and utilization of black soil have developed rapidly. As one of the key operating components of no-till seeders, the roller plays a crucial role in compacting the seedbed and furrows, preventing and avoiding seed air leakage, ensuring close contact between seeds and soil, and providing favorable seedbed conditions for seed germination and growth. Therefore, the development of high-quality, high-performance, miniaturized, and simplified rollers has become a key focus of research for agricultural machinery scientists both domestically and internationally.

[0003] To date, the structure of press rollers is still mostly based on the traditional circular shape, which results in problems such as large size and weight of press rollers, increased manufacturing costs, and slippage during operation, which reduces the pressing effect. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the prior art and, in combination with the actual needs of no-till seeders, to research and design a new Reuleaux triangular press wheel assembly for no-till seeders. This assembly aims to achieve miniaturization and simplification of the press wheel, ensure and improve the quality and effect of seedbed compaction, and provide a high-quality seedbed environment for seed germination and growth.

[0005] The objective of this invention is achieved as follows: a Reuleaux triangular pressing wheel is coaxially fitted and fixed at the middle part of the Reuleaux triangular shaft. The two ends of the Reuleaux triangular shaft are radially and axially positioned and rotatably supported and inserted into the square shaft holes of a fixedly configured square shaft seat. A mounting plate is fixedly installed on the outside of the square shaft seat. The contour curve equations of the inner wall surfaces at the four corners of the square shaft seat are:

[0006]

[0007]

[0008] Where: X—the horizontal coordinate of the coordinate axis, mm;

[0009] Y—Vertical coordinate of the coordinate axis, mm;

[0010] α—The angle between the line connecting the vertices F and G of the Reuleaux triangle and the horizontal direction, 30°≤α≤60° (°).

[0011] This completes the Reuleaux triangle roller assembly for the no-till planter.

[0012] This invention utilizes a Reuleaux triangle as the outline shape of the press wheel. This not only allows the press wheel to maintain stable rotation along a straight line, but also, because the curvature of the Reuleaux triangle is greater than that of a traditional circle, the Reuleaux triangle press wheel has a smaller volume and mass than a traditional circular press wheel for the same rolling length in one revolution. Furthermore, during operation, the Reuleaux triangle press wheel achieves more uniform contact with the ground surface, resulting in a higher degree of ground surface flatness. Simultaneously, the Reuleaux triangle axle rotates smoothly within the square hole of the axle seat, achieving a smooth forward movement for the Reuleaux triangle press wheel assembly. This assembly has a unique, novel, reasonable, simple, and compact structure, achieving miniaturization and simplification, resulting in good operational quality, high efficiency, and reliable use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the Reuleaux triangular press wheel assembly for a no-till planter;

[0014] Figure 2 yes Figure 1 Sectional view along line A-A;

[0015] Figure 3 yes Figure 2 The right view;

[0016] Figure 4 This is a three-dimensional schematic diagram of the overall structure of the Reuleaux triangular press wheel assembly of a no-till planter;

[0017] Figure 5 This is a schematic diagram of the design of the inner wall contour curves at the four corners of a square hole-shaped bearing seat.

[0018] Part number description in the image:

[0019] 1. Square hole-shaped bearing seat; 2. Reuleaux triangle shaft; 3. Reuleaux triangle press wheel; 4. Mounting plate. Detailed Implementation

[0020] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. A Reuleaux triangular press wheel assembly for a no-till planter includes a Reuleaux triangular press wheel 3 coaxially fitted and fixed on the middle portion of a Reuleaux triangular shaft 2. The two ends of the Reuleaux triangular shaft 2 are radially and axially positioned and rotatably supported and inserted into the square shaft holes of a fixedly configured square-hole shaft seat 1. A mounting plate 4 is fixedly installed on the outside of the square-hole shaft seat 1. The contour curve equations of the inner wall surfaces at the four corners of the square shaft seat 1 are as follows:

[0021]

[0022]

[0023] Where: X—the horizontal coordinate of the coordinate axis, mm;

[0024] Y—Vertical coordinate of the coordinate axis, mm;

[0025] α—The angle between the line connecting the vertices F and G of the Reuleaux triangle and the horizontal direction, 30°≤α≤60° (°).

[0026] The square hole-shaped bearing 1, the Reuleaux triangular shaft 2, the Reuleaux triangular press wheel 3, and the mounting plate 4 are all made of ordinary steel.

[0027] When in use, this assembly is mounted on the rear of the no-till planter frame using mounting plate 4.

[0028] As the compactor moves forward, the Reuleaux triangular compactor wheel 3 contacts the ground. Under the action of friction, the Reuleaux triangular compactor wheel 3 rotates on the square hole-shaped bearing seat 1, supported by the Reuleaux triangular shaft 2, thus compacting the seedbed after stubble breaking, ditching, fertilization, sowing, and covering with soil. During operation, the Reuleaux triangular compactor wheel 3 rolls reliably around its circumference without slippage. At the same time, the outer surface of the Reuleaux triangular shaft 2 remains in close contact with the inner wall of the square hole-shaped bearing seat 1, ensuring reliable radial positioning and no vibration, thus guaranteeing the working effect.

Claims

1. A no-till planter Lolo-triangle packer wheel assembly, characterized by: The Lelos triangle roller (3) is coaxially fixed on the middle part of the Lelos triangle shaft (2), the two ends of the Lelos triangle shaft (2) are radially and axially positioned and circumferentially rotatably supported in the square shaft hole of the fixedly arranged square hole shaft seat (1), and the mounting base plate (4) is fixedly arranged on the outside of the square hole shaft seat (1); the profile curve equation of the inner side wall surface of the four corners of the square hole shaft seat (1) is: In the formula, X is the horizontal coordinate of the coordinate axis, mm; Y is the vertical coordinate of the coordinate axis, mm; and α is the included angle between the line connecting the vertex F point and the vertex G point of the Lelos triangle shaft and the horizontal direction, 30°≤α≤60°. During operation, the assembly is installed at the rear part of the no-tillage seeding machine frame by using the mounting base plate (4), and the machine is driven to move forward, the Lelos triangle roller (3) is in contact with the ground, and under the action of friction, the Lelos triangle roller (3) rotates on the square hole shaft seat (1) through the Lelos triangle shaft (2) to complete the pressing operation on the seedbed after the stubble removal, ditching, fertilization, seeding and soil covering. The square hole shaft seat (1), the Lelos triangle shaft (2), the Lelos triangle roller (3) and the mounting base plate (4) are all made of ordinary steel. ​ 2. The no-till planter gull wheel assembly of claim 1, wherein: ​

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