An adjustable rapeseed seeder and furrow opener

Abstract

This utility model relates to the field of agricultural machinery technology, and in particular to an adjustable rapeseed planting furrow opener. It includes a housing with a transmission groove inside, a frame fixedly installed within the transmission groove, and a furrowing mechanism rotatably connected to the housing. A drive assembly, connected to the furrowing mechanism, is located within the transmission groove. The furrowing mechanism includes a drive shaft rotatably connected to the housing via bearings. Telescopic sleeves are slidably connected to both sides of the drive shaft, and furrowing wheels are bolted to both telescopic sleeves. The furrowing wheels, telescopic sleeves, and drive shaft are coaxially arranged. This adjustable rapeseed planting furrow opener uses an electric telescopic rod to drive the telescopic sleeves to slide along the drive shaft with protruding strips, achieving stepless adjustment of the furrowing wheel spacing to adapt to different row spacing requirements. It employs a compact bevel gear transmission structure with smooth power transmission, and combined with a protective transmission groove and standardized mounting plate, it features high operating accuracy, strong versatility, and long service life.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to an adjustable rapeseed sowing and furrowing device. Background Technology

[0002] Traditional rapeseed furrow openers typically employ a one-piece or fixed-spacing structure, with the furrow width predetermined during manufacturing. This prevents dynamic adjustment based on soil hardness, moisture, sowing density, or the agronomical requirements of different rapeseed varieties during operation. In heavy clay soils, excessively narrow furrows can lead to poor soil drainage and uneven soil covering, while in loose soils, excessively wide furrows can cause ridge collapse and seed exposure, severely impacting germination rate and uniformity. Furthermore, fixed furrow openers struggle to accommodate diverse row spacing configurations in modern agricultural practices such as multi-row sowing or intercropping, limiting operational flexibility and often requiring the replacement of entire components, increasing labor intensity and time costs. This lack of adaptive adjustment directly results in unstable sowing quality and increased difficulty in field management, hindering the widespread application of mechanized precision rapeseed sowing technology. Therefore, we propose an adjustable rapeseed furrow opener. Utility Model Content

[0003] The main purpose of this invention is to provide an adjustable rapeseed sowing furrow opener, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An adjustable rapeseed seeding furrow opener includes a housing, a transmission groove is provided inside the housing, a frame is fixedly installed in the transmission groove, a furrowing mechanism is rotatably connected to the housing, and a drive component that is transmissionly connected to the furrowing mechanism is provided in the transmission groove.

[0006] The trenching mechanism includes a drive shaft that is rotatably connected to the housing via a bearing. Telescopic sleeves are slidably connected to both sides of the drive shaft. Trenching wheels are fixedly installed on both telescopic sleeves by bolts. The trenching wheels, telescopic sleeves, and drive shaft are coaxially arranged.

[0007] Preferably, the drive assembly includes a drive motor fixedly mounted on the frame and a transmission bevel gear coaxially fixedly connected to the drive shaft. The output end of the drive motor is fixedly connected to the drive bevel gear, and the transmission bevel gear is located in the transmission groove and meshes with the drive bevel gear.

[0008] By adopting the above technical solution: by fixing the drive motor on the frame and coaxially setting the transmission bevel gear on the drive shaft, the drive bevel gear at the output end of the drive motor meshes with the transmission bevel gear, so that the power is efficiently and stably transmitted from the motor to the trenching mechanism, and the structure is compact and easy to maintain.

[0009] Preferably, the outer surface of the drive shaft is symmetrically provided with two protrusions, and the two protrusions are integrally formed with the drive shaft. The telescopic sleeve is slidably connected to the drive shaft through the protrusions.

[0010] By adopting the above technical solution, symmetrical protrusions are integrally formed on the outer surface of the drive shaft, and the telescopic sleeve is slidably connected to it through the protrusions. This ensures that the telescopic sleeve can slide freely along the axial direction to adjust its position, and also ensures that it rotates synchronously with the drive shaft to effectively transmit torque.

[0011] Preferably, the drive shaft has a built-in groove, an electric telescopic rod is fixedly installed in the built-in groove, and a connecting plate is fixedly connected to the output end of the electric telescopic rod.

[0012] By adopting the above technical solution, an internal groove is opened inside the drive shaft and an electric telescopic rod is installed. Its output end is connected to a connecting plate. The drive adjustment mechanism is integrated using the internal space, which saves external space and improves the overall structural compactness and protection performance.

[0013] Preferably, the inner wall of the telescopic sleeve away from the drive shaft has an installation groove, and the connecting plate is fixedly connected in the installation groove.

[0014] By adopting the above technical solution, an installation groove is set in the inner wall of the telescopic sleeve, and the connecting plate is fixed in it, so that the pushing and pulling force of the electric telescopic rod acts directly on the telescopic sleeve, realizing the synchronous and stable adjustment of the distance between the two grooved wheels.

[0015] Preferably, the rear end of the housing is fixedly welded with a mounting plate for fixed installation with agricultural machinery, and mounting holes are provided at all four corners of the mounting plate.

[0016] By adopting the above technical solution, a mounting plate with four corner mounting holes is welded to the rear end of the shell, which facilitates quick and stable connection of the entire trencher to various agricultural implements, improving versatility and assembly / disassembly efficiency.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By sliding two telescopic sleeves on the drive shaft and cooperating with the built-in electric telescopic rod, the spacing between the furrowing wheels can be automatically adjusted. This allows for flexible adjustment of the furrowing width according to actual sowing needs, significantly improving the equipment's adaptability to different rapeseed varieties and field conditions. At the same time, since the telescopic sleeves are connected to the drive shaft through a circumferential limiting and axial sliding connection via convex strips, it ensures both effective power transmission and structural stability during the adjustment process, avoiding the impact of slippage or offset on operational accuracy.

[0019] 2. The drive assembly adopts a bevel gear transmission method in which the drive bevel gear 42 meshes with the transmission bevel gear 43, which efficiently transmits the power of the drive motor to the trenching mechanism. The structure is compact and the transmission is smooth. The transmission groove effectively protects the internal transmission components and extends the service life of the whole machine. At the same time, the entire device can be quickly connected to various agricultural implements through the mounting plate and the mounting holes at its four corners, making it highly versatile. Attached Figure Description

[0020] Figure 1 This is a first-view schematic diagram of the overall structure of an adjustable rapeseed seeding furrow opener according to this utility model.

[0021] Figure 2 This is a second-view schematic diagram of the overall structure of an adjustable rapeseed seeding furrow opener according to this utility model.

[0022] Figure 3 This is a schematic diagram of the connection structure between the furrowing mechanism and the drive component of an adjustable rapeseed sowing furrow opener according to this utility model;

[0023] Figure 4 This is a schematic diagram of the connection structure between the drive shaft and the telescopic sliding sleeve of an adjustable rapeseed sowing furrow opener according to this utility model.

[0024] In the diagram: 1. Housing; 2. Transmission groove; 21. Frame; 3. Trenching mechanism; 31. Drive shaft; 311. Protrusion; 32. Telescopic sleeve; 321. Mounting groove; 33. Trenching wheel; 34. Electric telescopic rod; 35. Connecting plate; 4. Drive assembly; 41. Drive motor; 42. Drive bevel gear; 43. Transmission bevel gear; 5. Mounting plate; 6. Mounting hole. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Please see Figure 1-4 This utility model provides a technical solution:

[0029] An adjustable rapeseed seeding furrow opener includes a housing 1, a transmission groove 2 inside the housing 1, a frame 21 fixedly installed inside the transmission groove 2, a furrowing mechanism 3 rotatably connected to the housing 1, and a drive component 4 that is connected to the furrowing mechanism 3 in the transmission groove 2.

[0030] In this embodiment, the ditching mechanism 3 includes a drive shaft 31 rotatably connected to the housing 1 via bearings. Telescopic sleeves 32 are slidably connected to both sides of the drive shaft 31. Ditching wheels 33 are fixedly installed on both telescopic sleeves 32 by bolts. The ditching wheels 33, telescopic sleeves 32 and drive shaft 31 are coaxially arranged. The drive assembly 4 includes a drive motor 41 fixedly installed on the frame 21 and a transmission bevel gear 43 coaxially fixedly connected to the drive shaft 31. The output end of the drive motor 41 is fixedly connected to the drive bevel gear 42. The transmission bevel gear 43 is located in the transmission groove 2 and meshes with the drive bevel gear 42. The rear end of the housing 1 is fixedly welded with a mounting plate 5 for fixed installation with agricultural machinery. Mounting holes 6 are opened at the four corners of the mounting plate 5.

[0031] The above scheme involves fixing the furrow opener to the rear of a tractor or seeder via the mounting holes 6 on the mounting plate 5, allowing it to move forward with the agricultural machinery. The drive motor 41 is started, and its output drives the drive bevel gear 42 to rotate. This, in turn, transmits power to the drive shaft 31 via the meshing transmission bevel gear 43, providing rotational power to the entire furrowing mechanism 3. Because the drive shaft 31 has symmetrical convex strips 311 on its surface, and the telescopic sleeve 32 that slides with it is locked in the circumferential direction, it can rotate synchronously with the drive shaft 31, causing the furrowing wheels 33 on both sides to rotate and cut into the soil, completing the furrowing operation.

[0032] In this embodiment, two protrusions 311 are symmetrically arranged on the outer surface of the drive shaft 31, and the two protrusions 311 are integrally formed with the drive shaft 31. The telescopic sleeve 32 is slidably connected to the drive shaft 31 through the protrusions 311. An internal groove is provided inside the drive shaft 31, and an electric telescopic rod 34 is fixedly installed in the internal groove of the drive shaft 31. A connecting plate 35 is fixedly connected to the output end of the electric telescopic rod 34. An installation groove 321 is provided on the inner wall of the telescopic sleeve 32 away from the drive shaft 31, and the connecting plate 35 is fixedly connected in the installation groove 321.

[0033] With the above solution: when it is necessary to adjust the trench width, the control system starts the electric telescopic rod 34, and its output end connecting plate 35 pushes or pulls the telescopic sleeve 32 to slide axially along the drive shaft 31. Since the connecting plate 35 is fixedly connected in the mounting groove 321 on the inner wall of the telescopic sleeve 32, the distance between the two trenching wheels 33 can be precisely controlled to achieve stepless adjustment of the trench width.

[0034] It should be noted that this utility model is an adjustable rapeseed sowing furrow opener. In use, the furrow opener is first fixed to the rear of the tractor or seeder through the mounting holes 6 on the mounting plate 5, so that it moves forward with the agricultural machinery. The drive motor 41 is started, and its output end drives the drive bevel gear 42 to rotate. Then, through the transmission bevel gear 43 that meshes with it, the power is transmitted to the drive shaft 31, so that the entire furrowing mechanism 3 obtains rotational power. Since the surface of the drive shaft 31 is provided with symmetrical protrusions 311, the telescopic sleeve 32 that slides with it is locked in the circumferential direction. Therefore, it can rotate synchronously with the drive shaft 31, driving the furrowing wheels 33 on both sides to rotate and cut into the soil to complete the furrowing operation. When it is necessary to adjust the furrowing width, the control system starts the electric telescopic rod 34. Its output end connecting plate 35 pushes or pulls the telescopic sleeve 32 to slide along the drive shaft 31 axially. Since the connecting plate 35 is fixedly connected in the mounting groove 321 on the inner wall of the telescopic sleeve 32, the distance between the two furrowing wheels 33 can be precisely controlled to achieve stepless adjustment of the furrowing width. The entire adjustment process requires no machine shutdown or disassembly, making it easy to operate and significantly improving operational efficiency and agronomic adaptability.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable rapeseed seeding furrow opener, comprising a housing (1), characterized in that: The housing (1) has a transmission groove (2) inside, and a frame (21) is fixedly installed inside the transmission groove (2). A grooving mechanism (3) is rotatably connected to the housing (1). A drive assembly (4) that is connected to the grooving mechanism (3) is provided inside the transmission groove (2). The trenching mechanism (3) includes a drive shaft (31) that is rotatably connected to the housing (1) via a bearing. Telescopic sleeves (32) are slidably connected to both sides of the drive shaft (31). A trenching wheel (33) is fixedly installed on each of the two telescopic sleeves (32) by bolts. The trenching wheel (33), the telescopic sleeves (32) and the drive shaft (31) are coaxially arranged.

2. The adjustable rapeseed seeding furrow opener according to claim 1, characterized in that: The drive assembly (4) includes a drive motor (41) fixedly mounted on the frame (21) and a transmission bevel gear (43) coaxially fixedly connected to the drive shaft (31). The output end of the drive motor (41) is fixedly connected to the drive bevel gear (42), and the transmission bevel gear (43) is located in the transmission groove (2) and meshes with the drive bevel gear (42).

3. The adjustable rapeseed seeding furrow opener according to claim 1, characterized in that: Two convex strips (311) are symmetrically arranged on the outer surface of the drive shaft (31), and the two convex strips (311) are integrally formed with the drive shaft (31). The telescopic sleeve (32) is slidably connected to the drive shaft (31) through the convex strips (311).

4. An adjustable canola seeding coulter according to claim 1 wherein: The drive shaft (31) has a built-in groove, and an electric telescopic rod (34) is fixedly installed in the built-in groove of the drive shaft (31). The output end of the electric telescopic rod (34) is fixedly connected to a connecting plate (35).

5. An adjustable rapeseed seeding furrow opener according to claim 4, characterized in that: The telescopic sleeve (32) has an installation groove (321) on its inner wall away from the drive shaft (31), and the connecting plate (35) is fixedly connected in the installation groove (321).

6. An adjustable canola seeding coulter according to claim 1 wherein: The rear end of the housing (1) is fixedly welded with an installation plate (5) for fixed installation with agricultural machinery, and the four corners of the installation plate (5) are provided with installation holes (6).

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