Ditching wide and narrow row spacing adjustable press roller structure
By designing an adjustable furrow width and compaction roller structure, the problems of seed compression and soil loosening in traditional wheat planters have been solved, achieving adjustable furrow width and soil moisture retention, thereby improving wheat yield and yield stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 江苏金云农业装备有限公司
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-08
AI Technical Summary
The furrow opener of traditional wheat planters causes seeds to be squeezed together in narrow slits, resulting in uneven absorption of water and nutrients during germination, slow growth, loose soil that is not conducive to moisture retention, easy lodging, low yield and high management costs.
A press roller structure with adjustable furrow width is designed. The press roller is driven to rotate by gear transmission. Combined with the furrow pipe and fixed ring plate, the furrow width can be adjusted, and the functions of pressing and moisture retention can be achieved to ensure that the seeds are dispersed in the seedbed.
It achieves consistent trench depth and adjustable trench width, allowing each seed to fully absorb nutrients, resulting in strong roots and seedlings that are less prone to lodging, increasing yield by 100-300 jin per unit area, and demonstrating significant stable yield.
Smart Images

Figure CN224205694U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of press roller technology, specifically relating to a press roller structure with adjustable groove width and narrowness. Background Technology
[0002] Currently, wheat sowing is done by machine and manually. Wheat planters often use disc or cutting disc furrow openers to create neat furrows in the soil, ensuring precise seed planting at the predetermined depth. However, traditional disc or cutting disc furrow openers sow directly after rotary tillage, with planting slits no wider than 10mm. Seeds are squeezed together in these narrow slits, leading to uneven water and nutrient absorption during germination. During the growing season, they don't receive sufficient sunlight or nutrients, resulting in slow growth, malnutrition, reduced tillering, and relatively low yield. This also necessitates two applications of topdressing later, increasing costs. Furthermore, the relatively loose soil after rotary tillage without compaction is not conducive to soil moisture retention, crop root development, and lodging, resulting in low yield and high management costs.
[0003] Another type of manual farming, such as sowing, involves direct sowing, which wastes seeds and fertilizers. In addition, after rotary tillage, the soil becomes loose, which is not conducive to crop growth, moisture retention, and root development, making the crops prone to lodging. Summary of the Invention
[0004] The purpose of this invention is to design an adjustable furrow width and row width press roller structure, which improves and upgrades the furrowing method of wheat planters, and realizes the adjustable furrow width and row width.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] An adjustable groove width and narrow row press roller structure is characterized by: including a press roller, the two ends of the press roller are mounted on a side gearbox through bearing seats, the press roller is driven to rotate through a gear set in the side gearbox, the press roller includes a groove tube, a plurality of fixed ring plates are welded to the surface of the groove tube, the fixed ring plates are provided with a plurality of bolt holes, and the groove wheel is mounted on the fixed ring plate by bolts.
[0007] Furthermore, the two ends of the grooving pipe are respectively provided with a grooving roller shaft head and a grooving roller spline shaft head. The grooving roller spline shaft head is connected to a drive gear, and the drive gear meshes with the gear set to realize the rotation of the pressing roller to open the groove.
[0008] Furthermore, the side gearbox includes a side plate, on which a gearbox plate is mounted. The gearbox plate and the side are connected by several supplementary plates to form a triangular gearbox. The triangular gearbox is provided with several spacers.
[0009] Furthermore, holes are provided at the three corners of the triangular gearbox.
[0010] Furthermore, the two ends of the pressing roller are inserted into one of the holes in the side gearboxes on both sides.
[0011] The above technical solution can achieve the following beneficial effects:
[0012] After rotary tillage, the soil is relatively loose. After being compacted and furrowed by gear-driven rollers, it not only compacts, retains moisture, and conserves soil moisture, but also forms wide seedbeds in one go, with uniform depth and width. The furrow width can be selected with furrow wheels between 20 and 100 mm. The seeds are dispersed in the furrow-type seedbed, and each seed fully absorbs nutrients. The uniform depth and strong roots and seedlings are less prone to lodging, and the yield per unit area is increased by 100 to 300 jin compared to before. It is very important for stabilizing and increasing yield per unit area. Attached Figure Description
[0013] Figure 1 This is a structural diagram of the press roller.
[0014] Figure 2 This is a side view diagram.
[0015] Figure 3 This is a structural diagram of the side gearbox.
[0016] In the picture:
[0017] In the diagram: 1. Grooving pipe; 2. Grooving roller shaft head; 3. Grooving roller spline shaft head; 4. Fixing ring plate; 5. Side plate; 6. Gearbox plate. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings:
[0019] like Figure 1-3 As shown, an adjustable groove width and narrow groove pressing roller structure includes a pressing roller. Both ends of the pressing roller are mounted on a side gearbox via bearing seats. A gear set within the side gearbox drives the pressing roller to rotate. The pressing roller includes a groove-pressing tube 1, with several fixed ring plates 4 welded to its surface. Several bolt holes are provided on the fixed ring plates, and the groove wheel is bolted to the fixed ring plates. Both ends of the groove-pressing tube are respectively provided with a groove-pressing roller shaft head 2 and a groove-pressing roller spline shaft head 3. The groove-pressing roller spline shaft head is connected to a drive gear, which meshes with the gear set to achieve groove opening by rotating the pressing roller. The side gearbox includes a side plate 5, on which a gearbox plate 6 is mounted. Several supplementary plates connect the gearbox plate and the side to form a quasi-triangular gearbox, which has several spacers. Holes are provided at the three corners of the quasi-triangular gearbox. Both ends of the pressing roller are inserted into one of the holes in the two side gearboxes.
[0020] The spacing between adjacent fixing ring plates is 20-100mm. In the attached diagram, the spacing between adjacent fixing ring plates is 88cm.
[0021] The side gearbox includes a side plate 5, on which a gearbox plate 6 is installed. A first patch plate 7, a second patch plate 11, and a third patch plate 10 are provided between the gearbox plate 6 and the side, forming a triangular gearbox. Several outer spacers 8 are provided on the outside of the triangular gearbox, and several inner spacers 9 are provided on the inside. The two ends of the pressing roller are inserted into one of the holes of the two side gearboxes. A grooved plate fixing plate 12 is provided on the side of the triangular gearbox.
[0022] After the furrows are compacted by the gear-driven pressing rollers, they not only compact, retain moisture, and conserve soil moisture, but also create wide seedbeds in one go, ensuring uniform depth and width. The furrow width can be selected from 20 to 100 mm. The seeds are dispersed in the furrow-type seedbed, allowing each seed to fully absorb nutrients. The uniform depth and strong roots and seedlings make them less prone to lodging, increasing the yield by 100 to 300 jin per unit area compared to before. This is very important for stabilizing and increasing yield.
[0023] The above descriptions are all preferred embodiments of this utility model. For those skilled in the art, any modifications to this utility model in various equivalent forms without departing from the principle of this utility model shall fall within the protection scope of the appended claims.
Claims
1. A press roller structure with adjustable groove width and width, characterized in that: The device includes a pressing roller, both ends of which are mounted on a side gearbox via bearing seats. The pressing roller is driven to rotate by a gear set inside the side gearbox. The pressing roller includes a groove tube, and several fixing ring plates are welded to the surface of the groove tube. Several bolt holes are provided on the fixing ring plates, and the groove wheel is mounted on the fixing ring plates by bolts.
2. The adjustable groove width and narrow row press roller structure according to claim 1, characterized in that: The two ends of the grooving pipe are respectively provided with a grooving roller shaft head and a grooving roller spline shaft head. The grooving roller spline shaft head is connected to a drive gear. The drive gear meshes with the gear set to realize the rotation of the pressing roller to open the groove.
3. The adjustable groove width and narrow row press roller structure according to claim 1, characterized in that: The side gearbox includes a side plate, on which a gearbox plate is mounted. The gearbox plate and the side are connected by several supplementary plates to form a triangular gearbox. The triangular gearbox is provided with several spacers.
4. The adjustable groove width and narrow row press roller structure according to claim 3, characterized in that: The triangular gearbox has holes at its three corners.
5. The adjustable groove width and narrow row press roller structure according to claim 4, characterized in that: The two ends of the pressing roller are inserted into one of the holes in the side gearboxes on both sides.
6. The adjustable groove width and narrow row press roller structure according to claim 4, characterized in that: The spacing between adjacent fixing ring plates is 20–100 mm.