Corn double furrow intermittent in-row covering device
By designing an intermittent soil covering device in the double-ridge furrows of corn, the device utilizes a translation mechanism and a drive mechanism to achieve the periodic operation of the soil covering wheel, solving the problem that traditional devices cannot adapt to different spacings, improving soil covering efficiency and accuracy, and reducing the complexity of equipment replacement and adjustment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DRYLAND AGRI INST GANSU ACADEMY OF AGRI SCI
- Filing Date
- 2025-09-05
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional soil covering devices cannot adapt to different planting patterns in double-ridge furrow planting of corn, resulting in uneven coverage of seed gaps, increased purchase costs and preparation time, and low efficiency.
An intermittent soil covering device for corn double-ridge furrows was designed. The soil covering wheel is periodically raised and lowered through a translation mechanism and a drive mechanism. Combined with an adjustable soil covering unit, it can adapt to the soil covering needs of double-ridge furrows of different widths.
It enables intermittent soil covering operations, adapts to planting patterns with different spacing, improves soil covering efficiency and accuracy, and reduces the complexity of equipment replacement and adjustment.
Smart Images

Figure CN224538779U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of corn planting soil covering devices, and more specifically, to a corn double-ridge furrow intermittent soil covering device. Background Technology
[0002] The corn double-ridge furrow soil covering device refers to an agricultural machinery device specifically designed for the corn double-ridge furrow planting pattern. Its core function is to cover the furrows where corn seeds have been sown with soil, thereby creating the best environment for seed germination and seedling growth.
[0003] Traditional soil covering devices typically consist of continuously rotating covering wheels or plates, performing the covering operation continuously as the seeder moves. However, in the double-row planting pattern for corn, seeds are sown into the furrows at intervals. Continuous soil covering covers the gaps between seeds, and repeatedly compacting and covering seedless areas can easily form a hardened layer, hindering subsequent seedling root growth and rainwater infiltration. Furthermore, corn planting patterns vary, with different varieties, regions, and agronomical requirements necessitating different double-row furrow spacings. Existing soil covering devices typically have covering wheels mounted at fixed intervals on the frame. This is incompatible with planting patterns requiring different spacing, potentially necessitating the replacement of different specifications of soil covering devices, increasing purchase costs and preparation time. Even if some devices allow manual spacing adjustment, it often requires stopping the machine, using tools, or multiple people working together, and the adjustment accuracy is difficult to guarantee, resulting in low efficiency. Utility Model Content
[0004] The present invention aims to overcome the defects of the prior art and provide a device for intermittent soil covering in the furrows of corn double ridges.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an intermittent soil covering device for corn double-ridge furrows, comprising a frame, a translation mechanism mounted on the frame, and two translation seats mounted on the translation mechanism. The translation mechanism can drive the two translation seats to move away from or towards each other. Each translation seat is hingedly mounted with a soil covering unit. The frame is equipped with a drive mechanism for driving the two soil covering units. The translation mechanism includes a horizontal guide rod, a first motor, a first bearing, and a lead screw connecting the first motor and the first bearing. The drive mechanism includes a second motor and a drive gear driven by the second motor. The unit comprises two driven gears and a drive rod installed between the two driven gears. The soil covering unit includes a translation plate, a mounting arm fixedly connected to the translation plate, and a soil covering wheel installed on the mounting arm. The translation plate is fixed with a first hinge seat, and the translation seat is fixed with a second hinge seat that is hinged to the first hinge seat. An insertion rod is installed between the two translation plates. Both translation plates have insertion holes that mate with the insertion rod. The insertion rod is fixed with a fixing ring, and the fixing ring is fixed with a third hinge seat. One end of the drive rod is hinged to both driven gears, and the other end is hinged to the third hinge seat.
[0006] Furthermore, the frame includes two L-shaped frames, a U-shaped frame connecting the two L-shaped frames, and a mounting shell connecting the two L-shaped frames, with the translation mechanism installed inside the mounting shell.
[0007] This provides a certain degree of protection for the translation mechanism.
[0008] Furthermore, the L-shaped frame includes a first rod and a second rod fixedly connected to the first rod. The mounting shell is fixedly connected to the two first rods by bolts, and the U-shaped frame is fixedly connected to the two second rods.
[0009] This makes it easy to install and remove the housing, thus facilitating the maintenance of the translation mechanism.
[0010] Furthermore, the two ends of the horizontal guide rod are respectively fixedly connected to two first rods, the first motor is installed at one of the first rods, and the first bearing is installed at the other first rod.
[0011] Furthermore, the lead screw has a first thread and a second thread, and the two translation seats can be divided into a first translation seat and a second translation seat. The first translation seat is passed through by the lead screw and engages with the first thread, and the second translation seat is passed through by the lead screw and engages with the second thread.
[0012] Furthermore, both the first and second translation seats have guide holes that mate with the horizontal guide rod.
[0013] Furthermore, the mounting shell includes a first vertical plate, a second vertical plate, and a connecting horizontal plate connecting the first vertical plate and the second vertical plate. The two ends of the first vertical plate are respectively fixedly connected to the two first rods by the bolts, and both ends of the first vertical plate are fixed with a shielding plate.
[0014] Furthermore, the shielding plate can cover the connection gap between the first vertical plate and the first rod.
[0015] This allows the shielding plate to cover the L-shaped frame, making the installation of the housing more secure.
[0016] Furthermore, the two driven gears are located between the second rods of the two L-shaped frames. Both driven gears are equipped with a rotating shaft. The end of the second rod is equipped with a second bearing that mates with the rotating shaft. Both driven gears are equipped with a hinge device that is hinged to the drive rod.
[0017] Furthermore, the rotation axis of the hinge device does not coincide with the center of the driven gear.
[0018] Furthermore, both ends of the drive rod have rounded corners.
[0019] Furthermore, a motor mount is fixed between the U-shaped frame and one of the second rods, and the second motor is mounted on the motor mount.
[0020] This facilitates the installation and fixation of the second motor.
[0021] Beneficial effects:
[0022] 1. The soil covering device of this application, as the passive gear rotates, the drive rod can reciprocate, so that the soil covering wheel is periodically lifted and lowered, so that it is used for soil covering when it is lowered and cannot be used for soil covering when it is lifted, thereby realizing intermittent soil covering.
[0023] 2. The soil covering device of this application, under the action of the translation mechanism, allows the two translation plates to move away from or close to each other, so that the soil covering unit can adapt to the soil covering of double furrows of different widths. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of a soil-covering wheel used for soil covering.
[0025] Figure 2 This is a diagram showing the soil-covering wheel being lifted and not used for soil covering.
[0026] Figure 3 A first-person view diagram showing the separation of the mounting shell from the L-shaped frame;
[0027] Figure 4 This is a magnified view of region A;
[0028] Figure 5A second-view diagram showing the separation of the mounting shell from the L-shaped frame;
[0029] Figure 6 This is a magnified view of region B.
[0030] Figure 7 A third-view diagram showing the separation of the mounting shell from the L-shaped frame;
[0031] Figure 8 This is a magnified view of region C.
[0032] Explanation of reference numerals in the attached drawings: Frame 1; First rod 1.1; Second rod 1.2; U-shaped frame 1.3; First vertical plate 1.4; Second vertical plate 1.5; Connecting horizontal plate 1.6; Bolt 1.7; Cover plate 1.8; Horizontal guide rod 2.1; Lead screw 2.2; Translation seat 3; Second hinge seat 3.1; Second motor 4.1; Drive gear 4.2; Driven gear 4.3; Drive rod 4.4; Rotating shaft 4.5; Second bearing 4.6; Hinge device 4.7; Translation plate 5.1; Mounting arm 5.2; Soil covering wheel 5.3; First hinge seat 5.4; Insert rod part 6; Fixing ring 6.1; Third hinge seat 6.2; Motor seat 7. Detailed Implementation
[0033] 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.
[0034] This utility model provides, for example Figure 1-8The diagram illustrates an intermittent soil covering device for corn double-ridge furrows, comprising a frame 1, a translation mechanism mounted on the frame 1, and two translation seats 3 mounted on the translation mechanism. The translation mechanism can drive the two translation seats 3 to move away from or towards each other. Each translation seat 3 is hingedly fitted with a soil covering unit. The frame 1 is equipped with a drive mechanism for driving the two soil covering units. The translation mechanism includes a horizontal guide rod 2.1, a first motor, a first bearing, and a lead screw 2.2 connecting the first motor and the first bearing. The drive mechanism includes a second motor 4.1, a drive gear 4.2 driven by the second motor 4.1, two driven gears 4.3 driven by the drive gears 4.2, and a drive mechanism mounted on the two driven gears 4.3. The driving rod 4.4 between the two translation plates 5.3 is described above. The soil covering unit includes a translation plate 5.1, an mounting arm 5.2 fixedly connected to the translation plate 5.1, and a soil covering wheel 5.3 mounted on the mounting arm 5.2. The translation plate 5.1 is fixed with a first hinge seat 5.4, and the translation seat 3 is fixed with a second hinge seat 3.1 hinged to the first hinge seat 5.4. An insertion rod part 6 is installed between the two translation plates 5.1. Both translation plates 5.1 have insertion holes that cooperate with the insertion rod part 6. The insertion rod part 6 is fixed with a fixing ring 6.1, and the fixing ring 6.1 is fixed with a third hinge seat 6.2. One end of the driving rod 4.4 is hinged to both driven gears 4.3, and the other end is hinged to the third hinge seat 6.2.
[0035] The frame 1 includes two L-shaped frames, a U-shaped frame 1.3 connecting the two L-shaped frames, and a mounting shell connecting the two L-shaped frames. The translation mechanism is installed inside the mounting shell. Each L-shaped frame includes a first rod 1.1 and a second rod 1.2 fixedly connected to the first rod 1.1. The mounting shell is fixedly connected to the two first rods 1.1 by bolts 1.7. The U-shaped frame 1.3 is fixedly connected to the two second rods 1.2. The two ends of the horizontal guide rod 2.1 are fixedly connected to the two first rods 1.1 respectively. The first motor is installed at one of the first rods, and the first bearing is installed at the other first rod. The lead screw has a first thread and a second thread. The two translation seats can be divided into a first translation seat and a second translation seat. The first translation seat is passed through by the lead screw and engages with the first thread, and the second translation seat is passed through by the lead screw and engages with the second thread. Both the first translation seat and the second translation seat have guide holes that engage with the horizontal guide rod. The mounting housing includes a first vertical plate 1.4, a second vertical plate 1.5, and a connecting horizontal plate 1.6 connecting the first vertical plate 1.4 and the second vertical plate 1.5. The two ends of the first vertical plate 1.4 are respectively fixedly connected to two first rods 1.1 by bolts 1.7. Each end of the first vertical plate 1.4 is fixed with a shielding plate 1.8, which can cover the connection gap between the first vertical plate 1.4 and the first rod 1.1. Two driven gears 4.3 are located between the second rods 1.2 of the two L-shaped frames. Each driven gear 4.3 is equipped with a rotating shaft 4.5. The end of the second rod 1.2 is equipped with a second bearing 4.6 that mates with the rotating shaft 4.5. Each driven gear 4.3 is equipped with a hinge device 4.7 that is hinged to the drive rod 4.4. A motor base 7 is fixed between the U-shaped frame 1.3 and one of the second rods 1.2, and the second motor 4.1 is mounted on the motor base 7.
[0036] Working Principle: The soil covering device of this application is mounted on a traction machine or other mechanical power unit via a frame. The traction machine drives the soil covering device to perform the operation. As the driven gear rotates, the drive rod reciprocates, causing the soil covering wheel to be periodically raised and lowered. When it is lowered, it is used for soil covering; when it is raised, it cannot be used for soil covering, thus achieving intermittent soil covering. Furthermore, the length of this intermittent interval can be adjusted by controlling the speed of the drive gear. Under the action of the translation mechanism, the two translation plates can move away from or closer to each other, allowing the soil covering unit to adapt to soil covering of double furrows of different widths.
[0037] In practice, the distance between the two covering wheels is adjusted according to the actual spacing between the double furrows. The first motor drives the lead screw, causing the two translation seats to move closer or further apart on the horizontal guide rod. This moves the insertion rod within the insertion holes of the two translation plates, synchronizing the positions of the two covering units and thus adjusting the distance between the two covering wheels. After the positions of the two covering wheels are adjusted, the first motor is turned off. Then, the second motor is started, driving the driven gear through the drive gear, which in turn drives the drive rod to reciprocate, causing the covering wheels to be periodically lifted and lowered. Then, under the traction of the traction machine, the entire device moves along the furrow direction. When the covering wheel falls, it rolls as the machine moves forward, thus covering the soil; when the covering wheel is lifted, it detaches from the ground and is no longer used for covering soil, thus achieving intermittent covering.
[0038] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes and modifications can be made to the present invention without departing from the scope defined by the claims.
Claims
1. A device for intermittent soil covering in the furrows of double-ridge cornfields, characterized in that, The device includes a frame, a translation mechanism mounted on the frame, and two translation seats mounted on the translation mechanism. The translation mechanism can drive the two translation seats to move away from or towards each other. Each translation seat is hinged to a soil-covering unit. The frame is equipped with a drive mechanism for driving the two soil-covering units. The translation mechanism includes a horizontal guide rod, a first motor, a first bearing, and a lead screw connecting the first motor and the first bearing. The drive mechanism includes a second motor, a drive gear driven by the second motor, two driven gears driven by the drive gear, and a mounting mechanism. The soil covering unit includes a translation plate, a mounting arm fixedly connected to the translation plate, and a soil covering wheel mounted on the mounting arm. The translation plate is fixed with a first hinge seat, and the translation seat is fixed with a second hinge seat that is hinged to the first hinge seat. An insertion rod is installed between the two translation plates. Both translation plates have insertion holes that mate with the insertion rod. The insertion rod is fixed with a fixing ring, and the fixing ring is fixed with a third hinge seat. One end of the drive rod is hinged to both of the two driven gears, and the other end is hinged to the third hinge seat.
2. The intermittent soil covering device in the double-ridge furrows of corn according to claim 1, characterized in that, The frame includes two L-shaped frames, a U-shaped frame connecting the two L-shaped frames, and a mounting shell connecting the two L-shaped frames. The translation mechanism is installed inside the mounting shell. The L-shaped frame includes a first rod and a second rod fixedly connected to the first rod. The mounting shell is fixedly connected to the two first rods by bolts, and the U-shaped frame is fixedly connected to the two second rods.
3. The intermittent soil covering device in the double-ridge furrows of corn according to claim 2, characterized in that, The two ends of the horizontal guide rod are fixedly connected to two first rod bodies respectively. The first motor is installed at one of the first rod bodies, and the first bearing is installed at the other first rod body. The lead screw has a first thread and a second thread. The two translation seats can be divided into a first translation seat and a second translation seat. The first translation seat is passed through by the lead screw and is engaged with the first thread. The second translation seat is passed through by the lead screw and is engaged with the second thread. Both the first translation seat and the second translation seat have guide holes that engage with the horizontal guide rod.
4. The intermittent soil covering device in the double-ridge furrows of corn according to claim 2, characterized in that, The mounting shell includes a first vertical plate, a second vertical plate, and a connecting horizontal plate connecting the first vertical plate and the second vertical plate. The two ends of the first vertical plate are respectively fixedly connected to two first rods by the bolts. Both ends of the first vertical plate are fixed with a shielding plate.
5. The intermittent soil covering device in the double-ridge furrows of corn according to claim 2, characterized in that, Two driven gears are located between the second rods of the two L-shaped frames. Both driven gears are equipped with a rotating shaft. The end of the second rod is equipped with a second bearing that mates with the rotating shaft. Both driven gears are equipped with a hinge device that is hinged to the drive rod.
6. The intermittent soil covering device in the double-ridge furrows of corn according to claim 2, characterized in that, A motor mount is fixed between the U-shaped frame and one of the second rods, and the second motor is mounted on the motor mount.