A universal seed meter for field testing

Abstract

This application relates to a universal seed metering unit for field trials, belonging to the technical field of agricultural equipment. It includes: a three-point suspension assembly, a contour-following connection assembly, an electronically controlled transmission assembly, a seed metering device, a seed metering device mounting assembly, a furrowing assembly, and a pressing assembly. The seed metering device mounting assembly includes an outer fixed part and an inner adjustable part. The seed metering device is disposed inside the fixed part and connected to the adjustable part. Different types of seed metering devices can be installed by adjusting the adjustable part. The device of this application allows for field trials of different types of seed metering devices with a single unit, improving the versatility of the seed metering unit and reducing the production cost of field trial equipment.

Description

Technical Field

[0001] This application relates to the technical field of agricultural equipment, and in particular to a universal seed metering unit for field trials. Background Technology

[0002] As a core component in the sowing process, the seed metering device must be attached to a corresponding seed metering unit to perform sowing operations. A single seed metering unit can perform tasks such as furrowing, sowing, and covering with soil in one operation.

[0003] Most existing seed metering units for seeders are specialized units, making it difficult to conduct field trials with different seed metering devices. When sowing different types of seeds, it is necessary to replace the seed metering units with different types of seeders, which increases the cost. Utility Model Content

[0004] The purpose of this application is to provide a universal seed metering unit for field trials, which can realize field trials of different types of seed metering devices with a single unit, thereby improving the versatility of the seed metering unit and reducing the production cost of field trial equipment.

[0005] The technical solution for a universal seeding unit for field trials provided in this application is as follows:

[0006] A universal seeding unit for field trials, comprising:

[0007] Three-point suspension assembly for connection to the towing vehicle;

[0008] The contour-following connection component is connected to the rear side of the three-point suspension component;

[0009] An electronically controlled transmission assembly is connected to one side of the rear end of the contour-following connection assembly;

[0010] The seed metering device is connected to and driven by the electronically controlled transmission assembly.

[0011] Seed metering device mounting assembly, connected to the rear end of the contour-following connection assembly, for mounting the seed metering device; and

[0012] A rolling walking mechanism, connected to the lower end of the seed metering device mounting assembly, is used for walking on the ground;

[0013] The seed metering device mounting assembly includes an outer fixed part and an inner adjustable part. The seed metering device is located inside the fixed part and connected to the adjustable part. Different types of seed metering devices can be installed by adjusting the adjustable part.

[0014] As a preferred technical solution of this application, the three-point suspension assembly includes a lower crossbeam connection and an upper A-beam connection. The two legs of the A-beam connection are connected to the crossbeam connection. A suspension connection point is provided at the top of the A-beam connection, and a suspension connection point is provided at each end of the crossbeam connection.

[0015] As a preferred technical solution of this application, the contour-following connection assembly includes an upper connecting beam, a lower connecting beam, and a shock-absorbing spring. The front ends of the upper connecting beam and the lower connecting beam are connected to the three-point suspension assembly, and the shock-absorbing spring is connected between the upper connecting beam and the lower connecting beam.

[0016] As a preferred technical solution of this application, the fixing part of the seed metering device mounting assembly includes an upper fixing frame and a lower fixing frame forming an irregular ring. The front end of the lower fixing frame is connected to the contour connecting assembly, and the upper fixing frame and the lower fixing frame are detachably connected.

[0017] As a preferred technical solution of this application, the adjustable part of the seed metering device mounting assembly includes an adjustable connecting arm connected to the rear end of the upper fixed frame, an upper fixed platform connected to the upper part of the upper fixed frame, and a seed metering device fixing row connected to the front end of the lower fixed frame; the rear end of the adjustable connecting arm is rotatably connected to the upper fixed frame, and the front end is provided with a telescopic rod connected to the seed metering device; the upper fixed platform is provided with a plurality of through holes for connecting to the seed metering device; the seed metering device fixing row is provided with a plurality of through holes for connecting to the seed metering device.

[0018] As a preferred technical solution of this application, a seed tube mounting bracket is provided on the lower side of the lower fixing frame, and a seed tube positioning hole is provided on the seed tube mounting bracket for docking with the seed tube of the seed metering device.

[0019] As a preferred technical solution of this application, the electric control transmission assembly includes a mounting plate, a control motor, and a control screen. The mounting plate is connected to the front end of the lower fixed frame through two connection nodes. The control motor is fixed on the mounting plate and connected to the drive shaft of the seed metering device. The control screen is set on the mounting plate and is used to control the operation of the control motor.

[0020] As a preferred technical solution of this application, the rolling walking mechanism includes a trenching component and a pressing component, wherein the trenching component is connected to the front end of the lower fixed frame and the pressing component is connected to the rear end of the lower fixed frame.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. The seed metering device mounting assembly of this application adopts an adjustable internal structure for mounting seed metering devices, which can be used to install different types of seed metering devices, making the device more versatile and reducing the manufacturing cost of the equipment.

[0023] 2. The front end of the device is attached to a tractor via a three-point suspension, allowing it to operate under tractor traction. The front contour-following connection assembly helps prevent vibrations caused by terrain changes. The main body is attached to the rear of the contour-following connection assembly. The main body is equipped with a seed metering device, a seed metering device mounting assembly, a furrowing assembly, and an electronically controlled transmission assembly. Adjusting the seed metering device mounting assembly allows for three-axis adjustment of the seed metering device, and the electronically controlled transmission assembly enables precise control of the seed metering device's rotation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the device according to an embodiment of this application;

[0025] Figure 2 This is a schematic diagram of the structure of the electronically controlled transmission assembly in the embodiments of this application;

[0026] Figure 3 This is a schematic diagram of the structure of the seed metering device mounting assembly in an embodiment of this application;

[0027] In the diagram: 1. Three-point suspension assembly; 2. Contour connection assembly; 3. Electrically controlled transmission assembly; 3-1. Mounting plate; 3-2. Control motor; 3-3. Control screen; 4. Seed metering device; 5. Seed metering device mounting assembly; 5-1. Adjustable connecting arm; 5-2. Upper fixed platform; 5-3. Seed metering device fixed row; 5-4. Lower fixed frame; 5-5. Seed feeding tube mounting frame; 5-6. Upper fixed frame; 6. Furrowing assembly; 7. Pressing assembly. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1 - Appendix Figure 3 This application will be described in further detail below.

[0029] Example: This application proposes a universal seeding unit for field trials, referring to... Figure 1-3 The device includes a three-point suspension assembly 1, a contour-following connection assembly 2, an electric control transmission assembly 3, a seed metering device 4, a seed metering device mounting assembly 5, and a rolling walking mechanism, which includes a furrowing assembly 6 and a pressing assembly 7.

[0030] The three-point suspension assembly 1 is used to connect with the tractor. In this embodiment, the tractor is generally a tractor, and the seeding unit is installed by the tractor through the three-point suspension assembly 1.

[0031] The contour-following connection component 2 is connected to the rear side of the three-point suspension component 1. The contour-following connection component 2 serves as a connection and also as a shock absorber, reducing the vibration of the seeding unit when passing through different terrains and enhancing the adaptability of the seeding unit to different terrains.

[0032] The electric control transmission assembly 3 is connected to one side of the rear end of the contour connection assembly 2. The electric control transmission assembly 3 is used to drive the rotation and speed of the seed metering device 4, thereby controlling the seeding rate.

[0033] The seed metering device 4 is connected to the electric control transmission component 3 and is driven by the electric control transmission component 3. Different models of the seed metering device 4 can be replaced to sow different plant seeds.

[0034] Seed metering device mounting assembly 5 is connected to the rear end of contour connecting assembly 2. Seed metering device 4 is installed inside seed metering device mounting assembly 5. The internal structure of seed metering device mounting assembly 5 is adjustable to facilitate the installation of different models of seed metering devices 4.

[0035] The furrowing component 6 is installed on the lower front end of the seed metering device mounting component 5 and is located on the front side of the seed metering device 4. It is used to open furrows in the land for planting seeds and push soil to both sides of the furrows.

[0036] The compaction assembly 7 is installed at the lower rear end of the seed metering assembly 5 and at the rear of the seed metering device 4. It is used to backfill the furrows after sowing with soil and compact the soil.

[0037] In this application, the seed metering unit is mounted on the tractor via a three-point suspension assembly 1. The contour-following connection assembly 2 serves to connect and dampen the seed metering unit during its movement, making it easier for the seed metering unit to traverse various terrains. The internal structure of the seed metering device mounting assembly 5 can be adjusted according to different seed metering device 4 models. The internal structure of the seed metering device mounting assembly 5 can be adaptively changed, so that different models of seed metering devices 4 can be used with just one set of seed metering units. The seed metering device 4 is installed inside the seed metering device mounting assembly 5 and its rotation and speed are controlled by the electronically controlled transmission assembly 3. The furrowing assembly 6 and the pressing assembly 7 both provide support during the movement of the seed metering unit.

[0038] Furthermore, the three-point suspension assembly 1 in this application includes two structural parts: a lower crossbeam connection and an upper herringbone beam connection. The two legs of the herringbone beam connection are connected to the crossbeam connection. A suspension connection point is provided at the top of the herringbone beam connection, and a suspension connection point is provided at each end of the crossbeam connection, forming three suspension connection points distributed in a triangular pattern.

[0039] The three suspension connection points are connected to the tractor via pins. The triangular arrangement of the suspension connection points can reduce the vertical swaying of the seeding unit during movement.

[0040] Furthermore, the contour-following connection assembly 2 comprises three structural parts: an upper connecting beam, a lower connecting beam, and a shock-absorbing spring. The upper and lower connecting beams are arranged opposite each other, with the upper connecting beam rotatably connected to the upper side of the crossbeam connection and the lower connecting beam rotatably connected to the lower side of the crossbeam connection. The rotation axes of the upper and lower connecting beams are horizontally arranged, allowing them to swing up and down. The shock-absorbing spring is connected between the upper and lower connecting beams, serving as a buffer between them.

[0041] The seed metering device mounting assembly 5 includes an outer fixed part and an inner adjustable part. The fixed part is rotatably connected to the rear ends of the upper connecting beam and the lower connecting beam. The seed metering device 4 is located inside the fixed part and connected to the adjustable part. Different types of seed metering devices 4 can be installed by adjusting the adjustable part.

[0042] For example, the fixing part of the seed metering device mounting assembly 5 includes an upper fixing frame 5-6 and a lower fixing frame 5-4 forming an irregular ring. The front end of the lower fixing frame 5-4 is connected to two connecting beams of the contoured connecting assembly 2. The upper fixing frame 5-6 and the lower fixing frame 5-4 are detachably connected by bolts. An installation area is formed between the upper fixing frame 5-6 and the lower fixing frame 5-4 for installing the seed metering device 4. The upper fixing frame 5-6 is approximately a U-shaped structure with an opening facing downwards, including a top part, a front part, and a rear part. The lower fixing frame 5-4 is approximately an inverted T-shaped structure, including a front part and a lower side part.

[0043] The adjustable part of the seed metering device mounting assembly 5 includes an adjustable connecting arm 5-1, an upper fixed platform 5-2, and a seed metering device fixing plate 5-3. The adjustable connecting arm 5-1 adopts a telescopic structure, and in this embodiment, a pneumatic spring can be used. The rear end of the adjustable connecting arm 5-1 is rotatably connected to the rear end of the upper fixed frame 5-6, and the front end of the adjustable connecting arm 5-1 is provided with a connecting ring for bolt connection to the housing of the seed metering device 4. The upper fixed platform 5-2 is connected to the inner side of the top part of the upper fixed frame 5-6. The upper fixed platform 5-2 adopts a vertical plate structure with at least two oblong holes, which facilitates bolt connection to the housing of the seed metering device 4 and facilitates adjustment of the connection position to meet the installation requirements of different models of seed metering devices 4. The seed metering device fixing plate 5-3 is a straight plate with multiple mounting through holes, which is fixedly connected to the upper part of the front end of the lower fixed frame 5-4. Similarly, the seed metering device fixing plate 5-3 is bolted to the seed metering device 4 through the mounting through holes. By connecting different mounting through hole positions, the installation requirements of different models of seed metering devices 4 can be met.

[0044] Furthermore, a seed tube mounting bracket 5-5 is connected to the lower part of the lower fixed frame 5-4. The seed tube mounting bracket 5-5 has a seed tube positioning hole for docking with the seed tube of the seed metering device 4. After the seed metering device 4 is installed in place, the seed tube docks with the seed tube positioning hole of the seed tube mounting bracket 5-5, so that the seeds enter the seed tube mounting bracket 5-5 through the seed tube and are sown into the soil.

[0045] Furthermore, the electric control transmission assembly 3 includes a mounting plate 3-1, a control motor 3-2, and a control screen 3-3. The mounting plate 3-1 is triangular and is connected to the front end of the lower fixed frame 5-4 through two connecting nodes. The mounting plate 3-1 has two oblong holes and is connected to the lower fixed frame 5-4 through these holes, allowing the position of the mounting plate 3-1 to be adjusted relative to the lower fixed frame 5-4 to meet the installation requirements of different models of seed metering devices 4. The control motor 3-2 is fixedly connected to the mounting plate 3-1, and its output shaft is connected to the drive shaft of the seed metering device 4, driving the seed metering device 4 to rotate. The control screen 3-3 is installed on the outside of the mounting plate 3-1 and is used to control the operation of the control motor 3-2. The control screen 3-3 is equipped with GPS positioning, and the speed during operation is measured and controlled via GPS, thereby converting the speed information into motor speed and controlling the rotation of the control motor 3-2 to achieve precise control of the speed of the seed metering device 4.

[0046] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A universal row unit for field testing, characterized in that, include: Three-point suspension assembly (1) for connection with towing vehicle; The contour-following connection component (2) is connected to the rear side of the three-point suspension component (1); The electric drive assembly (3) is connected to one side of the rear end of the contour connection assembly (2); The seed metering device (4) is connected to the electric control transmission assembly (3) and is driven by the electric control transmission assembly (3); Seed metering device mounting assembly (5), connected to the rear end of contoured connecting assembly (2), for mounting seed metering device (4); and A rolling walking mechanism is connected to the lower end of the seed metering device mounting assembly (5) and is used to walk on the ground; The seed metering device mounting assembly (5) includes an outer fixed part and an inner adjustable part. The seed metering device (4) is located inside the fixed part and connected to the adjustable part. Different types of seed metering devices (4) can be installed as the adjustable part is adjusted.

2. The universal row unit for field testing of claim 1, wherein, The three-point suspension assembly (1) includes a lower crossbeam connection and an upper herringbone beam connection. The two legs of the herringbone beam connection are connected to the crossbeam connection. A suspension connection point is provided at the top of the herringbone beam connection, and a suspension connection point is provided at each end of the crossbeam connection.

3. The universal seed meter for field testing of claim 1, wherein, The contour-following connection assembly (2) includes an upper connecting beam, a lower connecting beam, and a shock-absorbing spring. The front ends of the upper and lower connecting beams are connected to the three-point suspension assembly (1), and the shock-absorbing spring is connected between the upper and lower connecting beams.

4. The universal row unit for field testing of claim 3, wherein, The fixing part of the seed metering device mounting assembly (5) includes an upper fixing frame (5-6) and a lower fixing frame (5-4) forming an irregular ring. The front end of the lower fixing frame (5-4) is connected to the contour connecting assembly (2), and the upper fixing frame (5-6) and the lower fixing frame (5-4) are detachably connected.

5. A universal seed meter for field testing as defined in claim 4, wherein, The adjustable part of the seed metering device mounting assembly (5) includes an adjustable connecting arm (5-1) connected to the rear end of the upper fixed frame (5-6), an upper fixed platform (5-2) connected to the upper part of the upper fixed frame (5-6), and a seed metering device fixing row (5-3) connected to the front end of the lower fixed frame (5-4); the rear end of the adjustable connecting arm (5-1) is rotatably connected to the upper fixed frame (5-6), and the front end is provided with a telescopic rod connected to the seed metering device (4); the upper fixed platform (5-2) is provided with a plurality of through holes for connecting to the seed metering device (4); the seed metering device fixing row (5-3) is provided with a plurality of through holes for connecting to the seed metering device (4).

6. A universal seed meter for field testing as defined in claim 5, wherein, The lower fixing frame (5-4) is provided with a seed tube mounting frame (5-5) on its lower side. The seed tube mounting frame (5-5) is provided with a seed tube positioning hole for connecting with the seed tube of the seed metering device (4).

7. The universal seeding unit for field trials according to claim 4, characterized in that, The electric control transmission assembly (3) includes a mounting plate (3-1), a control motor (3-2), and a control screen (3-3). The mounting plate (3-1) is connected to the front end of the lower fixed frame (5-4) through two connection nodes. The control motor (3-2) is fixed on the mounting plate (3-1) and connected to the drive shaft of the seed metering device (4). The control screen (3-3) is set on the mounting plate (3-1) and is used to control the operation of the control motor (3-2).

8. The universal row unit for field testing of claim 4, wherein, The rolling walking mechanism comprises a ditching assembly (6) connected to the front end of the lower fixed frame (5-4) and a compacting assembly (7) connected to the rear end of the lower fixed frame (5-4).

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