Seeder adjusting device and drill seeder

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a seeder adjusting device and a drill seeder. The seeder adjusting device comprises a handle mounting seat, an inner shaft, an outer shaft, a mounting base, a first handle assembly, a second handle assembly, a first transmission mechanism and a second transmission mechanism; the outer shaft is arranged outside the inner shaft, one end of the inner shaft extends out of the outer shaft, is arranged on the handle mounting seat and is connected with the first handle assembly, the other end of the inner shaft extends out of the outer shaft and is connected with one end of the first transmission mechanism, and the other end of the first transmission mechanism is connected with the seed metering calibration connecting shaft; one end of the outer shaft is connected with the second handle assembly, and the other end is connected with the second transmission mechanism which is connected with the seeding rate adjusting shaft; two arc-shaped sliding grooves are formed in the handle installation base and are different in diameter, and the first handle assembly and the second handle assembly are arranged in the two sliding grooves respectively. According to the utility model, additional tools are not needed in overall operation, and the problem that the existing drill seeder is inconvenient to adjust the seed metering amount and calibrate and switch is solved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and more specifically, to a seeder adjustment device and a strip seeder. Background Technology

[0002] Row sowing is a planting technique used for many crops, such as wheat, alfalfa, and rapeseed. The row spacing for different crops and even for the same crop in different regions is not exactly the same. Scientific and reasonable row spacing during sowing can ensure higher grain yields and better economic benefits.

[0003] Row seeders are the main machinery for sowing this type of crop. Currently, the adjustment and calibration of the seed discharge rate of row seeders cannot be easily operated, and the technology is relatively backward. The seed discharge rate adjustment requires loosening the bolts before adjustment and then fixing them again. The seed calibration requires disassembling the seed guide frame and then inoculating the seed for calibration. Utility Model Content

[0004] The purpose of this invention is to provide a seeder adjustment device and a row seeder, which can simplify the adjustment of seeding rate and seeding calibration, making the adjustment more convenient.

[0005] In a first aspect, this utility model provides a seeder adjustment device, including a handle mounting base, an inner shaft, an outer shaft, a mounting base, a first handle assembly, a second handle assembly, a first transmission mechanism, and a second transmission mechanism;

[0006] The outer shaft is sleeved outside the inner shaft. One end of the inner shaft extends out of the outer shaft and is rotatably connected to the handle mounting seat. The other end of the inner shaft extends out of the outer shaft and is connected to one end of the first transmission mechanism. The other end of the first transmission mechanism is used to connect to the seeding calibration connection shaft.

[0007] One end of the outer shaft is rotatably mounted on the mounting base and connected to one end of the second transmission mechanism. The other end of the second transmission mechanism is used to connect to the seeding amount adjustment shaft, and the other end of the outer shaft is connected to one end of the first handle assembly.

[0008] The handle mounting base is provided with two arc-shaped sliding grooves with different diameters. The other end of the first handle assembly is slidably disposed in the sliding groove. One end of the second handle assembly is connected to the end of the inner shaft connected to the handle mounting base, and the other end of the second handle assembly is disposed in the other sliding groove.

[0009] In an optional implementation, the first transmission mechanism is a four-bar linkage structure;

[0010] And / or, the second transmission mechanism is a four-bar linkage structure.

[0011] In an optional embodiment, a limiting structure is also included, wherein the limiting structure has a limiting groove, and the middle part of the four-bar linkage is disposed within the limiting groove.

[0012] In an optional implementation, the first handle assembly includes a first link and a first actuating portion;

[0013] One end of the first connecting rod is fixedly connected to the inner shaft, and the first actuating part is disposed at the other end of the first connecting rod and is slidably disposed in the sliding groove.

[0014] In an optional embodiment, the first actuating part and the first connecting rod are rotatably connected.

[0015] In an optional embodiment, the inner shaft and the outer shaft have an anti-friction structure.

[0016] In an optional embodiment, the anti-friction structure is a lubricating layer or a bearing.

[0017] In an optional embodiment, both the first handle assembly and the second handle assembly are provided with a locking structure for locking after the first handle assembly and the second handle assembly have moved to a set position within the sliding groove.

[0018] In an optional embodiment, the handle mounting base is provided with an angle scale, the center of which is on the axis of the inner shaft.

[0019] Secondly, this utility model provides a strip seeder, including the seeder adjustment device described in any of the foregoing embodiments.

[0020] The beneficial effects of this utility model embodiment are:

[0021] The nested design of the inner and outer shafts maximizes space utilization. Adjustments to the inner and outer shafts are achieved via the first and second handle assemblies, allowing for control of the seeding rate and seed metering calibration. A sliding groove limits the movement of both handle assemblies, ensuring stable adjustment. The entire operation requires no additional tools, resolving the inconvenience of adjusting seeding rate and switching calibration in existing row seeders. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A front view of the seeder adjustment device provided in an embodiment of this utility model;

[0024] Figure 2 A side view of the seeder adjustment device provided in an embodiment of this utility model;

[0025] Figure 3 A three-dimensional structural schematic diagram of the seeder adjustment device provided in an embodiment of this utility model.

[0026] Icons: 1-Handle mounting base; 2-Outer shaft; 3-Inner shaft; 4-Mounting base; 5-First transmission mechanism; 6-Second transmission mechanism; 7-Seed quantity adjustment shaft; 8-Seed metering calibration connecting shaft; 9-First handle assembly; 10-Second handle assembly; 11-Sliding groove; 12-Positioning groove. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are 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," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0033] The following is combined Figures 1-3 The following describes some embodiments of the present invention in detail. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] In a first aspect, this utility model provides a seeder adjustment device, including a handle mounting base 1, an inner shaft 3, an outer shaft 2, a mounting base 4, a first handle assembly 9, a second handle assembly 10, a first transmission mechanism 5, and a second transmission mechanism 6; the outer shaft 2 is sleeved outside the inner shaft 3, one end of the inner shaft 3 extends out of the outer shaft 2 and is rotatably mounted on the handle mounting base 1, and is connected to the first handle assembly 9; the other end of the inner shaft 3 extends out of the outer shaft 2 and is connected to one end of the first transmission mechanism 5, the other end of the first transmission mechanism 5 is used to connect to a seed metering calibration connecting shaft 8; one end of the outer shaft 2 is connected to the second handle assembly 10, the other end of the outer shaft 2 is rotatably mounted on the mounting base 4, and is connected to one end of the second transmission mechanism 6, the other end of the second transmission mechanism 6 is used to connect to a seed quantity adjustment shaft 7; the handle mounting base 4 is provided with two arc-shaped sliding grooves 11, the two sliding grooves 11 having different diameters, and the first handle assembly 9 and the second handle assembly 10 are respectively slidably mounted in the two sliding grooves 11.

[0035] In this embodiment, the seeder adjustment device is used to achieve precise adjustment of the seeder's seeding calibration and seeding rate. This device mainly includes the following components:

[0036] Handle mounting base 1: The handle mounting base 1 is fixed on the housing of the strip seeder, or is part of the housing of the strip seeder. It is provided with two arc-shaped sliding grooves 11. The first handle assembly 9 and the second handle assembly 10 are respectively set through the two sliding grooves 11. The sliding grooves 11 can limit the rotational distance of the first handle assembly 9 and the second handle assembly 10, thereby ensuring the stability of the first handle assembly 9 and the second handle assembly 10 when adjusting the inner shaft 3 and the outer shaft 2.

[0037] Inner shaft 3: This is one of the core transmission components of the device, with outer shaft 2 sleeved on its exterior. One end of inner shaft 3 extends out of outer shaft 2 and is rotatably mounted on handle mounting seat 1, and connected to the first handle assembly 9; the other end extends out of outer shaft 2 and is connected to one end of the first transmission mechanism 5.

[0038] Outer shaft 2: is a hollow shaft, sleeved outside the inner shaft 3. One end of the outer shaft 2 is connected to the second handle assembly 10, and the other end is rotatably mounted on the mounting base 4 and connected to one end of the second transmission mechanism 6.

[0039] Mounting base 4: Used to fix the outer shaft 2, providing stable support for the entire device and ensuring the reliability of the transmission process.

[0040] First handle assembly 9: Installed in a sliding groove 11 of handle mounting base 1. By operating this assembly, the inner shaft 3 can be driven to rotate, thereby driving the first transmission mechanism 5 to move and realize the adjustment of seeding calibration.

[0041] Second handle assembly 10: Installed in another sliding groove 11 of handle mounting base 1. By operating this assembly, the outer shaft 2 can be driven to rotate, thereby driving the second transmission mechanism 6 to move and realize the adjustment of the seeding amount.

[0042] First transmission mechanism 5: One end is connected to the inner shaft 3, and the other end is used to connect to the seeding calibration connecting shaft 8, so as to transmit the rotation of the inner shaft 3 to the seeding calibration connecting shaft 8 and realize the precise adjustment of seeding calibration.

[0043] The second transmission mechanism 6 has one end connected to the outer shaft 2 and the other end connected to the seed quantity adjustment shaft 7, which transmits the rotation of the outer shaft 2 to the seed quantity adjustment shaft 7 to achieve precise adjustment of the seed quantity.

[0044] Work process:

[0045] When adjusting the seed metering calibration of the seeder, the operator rotates the first handle assembly 9, which in turn rotates the inner shaft 3. The rotation of the inner shaft 3 is further transmitted to the first transmission mechanism 5, which in turn transmits power to the seed metering calibration connecting shaft 8, thereby achieving the adjustment of the seed metering calibration. Since the first handle assembly 9 is slidably positioned within the sliding groove 11 of the handle mounting base 1, the operator can flexibly adjust the position of the handle within the range of the sliding groove 11 as needed to achieve adjustments at different angles.

[0046] When the seeding rate needs to be adjusted, the operator rotates the second handle assembly 10, which drives the outer shaft 2 to rotate. The rotation of the outer shaft 2 is further transmitted to the second transmission mechanism 6, which ultimately transmits the power to the seeding rate adjustment shaft 7, thereby adjusting the seeding rate. Similarly, the second handle assembly 10 is slidably disposed within another sliding groove 11 of the handle mounting base 1, allowing the operator to flexibly adjust the position of the handle within the range of the sliding groove 11 as needed to achieve adjustments at different angles.

[0047] The seeder adjustment device provided in this embodiment can independently adjust the seeding calibration and seeding amount. It is simple to operate, precise to adjust, and suitable for various seeding scenarios, thereby improving seeding efficiency and seeding quality.

[0048] In an optional embodiment, the first transmission mechanism 5 is a four-bar linkage; and / or, the second transmission mechanism 6 is a four-bar linkage.

[0049] Specifically, in this embodiment, the four-bar linkage is a double-crank structure.

[0050] More specifically, when the first transmission mechanism 5 is a four-bar linkage structure, the rod connected to the inner shaft 3 and the rod connected to the seeding calibration connecting shaft 8 are cranks. When the inner shaft 3 rotates, it drives one crank to continue swinging. Under the action of the connecting rod, it drives the other crank to swing, thereby transmitting the rotation of the inner shaft 3 to the seeding calibration connecting shaft 8, so that the seeding calibration connecting shaft 8 rotates.

[0051] Similarly, when the second transmission mechanism 6 is a four-bar linkage, the rod connected to the outer shaft 2 and the rod connected to the seed quantity adjustment shaft 7 are cranks. When the outer shaft 2 rotates, it drives one crank to continue swinging. Under the action of the connecting rod, it drives the other crank to swing, thereby transmitting the rotation of the outer shaft 2 to the seed quantity adjustment shaft 7, so that the seed quantity adjustment shaft 7 rotates.

[0052] In this embodiment, the first transmission mechanism 5 and the second transmission mechanism 6 can be a four-bar linkage structure, but they are not limited to a four-bar linkage structure. They can also be other transmission structures, such as chain drive, gear drive, belt drive, etc., as long as they can transmit the rotation of the inner shaft 3 to the seeding calibration connecting shaft 8 and the rotation of the outer shaft 2 to the seeding quantity adjustment shaft 7.

[0053] In an optional embodiment, a limiting structure is also included, wherein the limiting structure has a limiting groove, and the middle part of the four-bar linkage is disposed within the limiting groove.

[0054] Specifically, in the non-implementation embodiment, the setting of the limiting structure can limit the swing direction of the end of the connecting rod or crank on the four-bar linkage away from the inner shaft 3 or the outer shaft 2, so that it can only swing circumferentially around the inner shaft 3 or the outer shaft 2, but cannot swing axially, thereby improving the accuracy of transmission.

[0055] In an optional embodiment, the first handle assembly 9 includes a first connecting rod and a first actuating part; one end of the first connecting rod is fixedly connected to the inner shaft 3, and the first actuating part is disposed at the other end of the first connecting rod and slidably disposed in the sliding groove 11.

[0056] In this embodiment, the first connecting rod serves as the main transmission component of the first handle assembly 9, with one end fixedly connected to the inner shaft 3 and the other end connected to the first actuating part. The length and shape of the first connecting rod are optimized according to the overall design of the device to ensure good stability and transmission efficiency during movement.

[0057] The first actuating part is located at the other end of the first linkage and is used for direct operation by the operator. The first actuating part is slidably disposed within the sliding groove 11 of the handle mounting base 1, allowing the operator to control the rotation of the first linkage by sliding the handle within the sliding groove 11. The design of the first actuating part takes ergonomics into account, possessing suitable size and shape for easy gripping and operation by the operator.

[0058] Function and working process:

[0059] In the seeder adjustment device, the first handle assembly 9 is used to adjust the seeding calibration through manual operation by the operator.

[0060] The specific work process is as follows:

[0061] 1. Operator Operation: The operator holds the first actuating part and slides the handle within the sliding groove 11 of the handle mounting base 1. The arc-shaped design of the sliding groove 11 allows the operator to adjust the angle of the handle within a certain range, thereby achieving adjustment in different directions.

[0062] 2. Transmission process: When the operator slides the first actuating part, the first connecting rod rotates around the inner shaft 3. Since one end of the first connecting rod is fixedly connected to the inner shaft 3, the rotation of the first connecting rod will drive the inner shaft 3 to rotate.

[0063] 3. Seed metering calibration adjustment: The rotation of the inner shaft 3 is further transmitted to the first transmission mechanism 5 (a four-bar linkage, specifically a double-crank structure). The double-crank structure smoothly transmits the rotational motion of the inner shaft 3 to the seed metering calibration connecting shaft 8, thereby achieving precise adjustment of the seed metering calibration.

[0064] Through this design, the first handle assembly 9 enables the adjustment of the seeding calibration, ensuring the stability and accuracy of the adjustment process.

[0065] Similarly, in this embodiment, the second handle assembly 10 includes a second link and a second actuating part, and its structure is similar to that of the first handle assembly 9. The length of the second link is greater than the length of the first link, and the second link is located on the side of the first link away from the handle mounting seat 1, so that the first handle assembly 9 and the second handle assembly 10 will not interfere with each other when rotating.

[0066] In an optional embodiment, the first actuating part and the first connecting rod are rotatably connected.

[0067] In this embodiment, the first actuating part and the first connecting rod are configured to rotate, which makes it more convenient to rotate the first connecting rod by driving the first actuating part.

[0068] In an optional embodiment, the inner shaft 3 and the outer shaft 2 have an anti-friction structure.

[0069] In this embodiment, after the anti-friction structure is set between the inner shaft 3 and the outer shaft 2, the friction between the inner shaft 3 and the outer shaft 2 can be effectively reduced, the wear of the inner shaft 3 and the outer shaft 2 can be reduced, and the service life of the inner shaft 3 and the outer shaft 2 can be increased.

[0070] In an optional embodiment, the anti-friction structure is a lubricating layer or a bearing.

[0071] In this embodiment, the anti-friction structure can be provided as a lubrication layer, that is, lubricating oil is provided between the inner shaft 3 and the outer shaft 2 to lubricate the inner shaft 3 and the outer shaft 2 and reduce the wear between the inner shaft 3 and the outer shaft 2.

[0072] In this embodiment, the anti-friction structure can also use bearings, such as a bearing at each end of the inner shaft 3, with the inner ring of the bearing connected to the inner shaft 3 and the outer ring of the bearing connected to the outer shaft 2. By using bearings, the friction between the inner shaft 3 and the outer shaft 2 can be reduced, and the support between the inner shaft 3 and the outer shaft 2 can be achieved, ensuring the stability of the inner shaft 3 and the outer shaft 2 during rotation.

[0073] It is understood that in this embodiment, the anti-friction structure can be one of the two methods mentioned above, but it is not limited to these two methods. It can also be other anti-friction structures, as long as they can reduce the friction between the inner shaft 3 and the outer shaft 2 and improve the service life of the inner shaft 3 and the outer shaft 2.

[0074] In an optional embodiment, both the first handle assembly 9 and the second handle assembly 10 are provided with a locking structure for locking after the first handle assembly 9 and the second handle assembly 10 have moved to a set position in the sliding groove 11.

[0075] In this embodiment, the locking structure is a device for fixing the position of the handle assembly. Its purpose is to lock the handle assembly after it has been moved to a set position to prevent accidental movement during operation, thereby ensuring the stability and reliability of the adjustment.

[0076] Specifically, in this embodiment, there are many ways to set the locking structure.

[0077] More specifically, in this embodiment, at least one positioning groove 12 is provided on the side wall of the sliding groove 11. When the first handle assembly 9 or the second handle assembly 10 moves in the sliding groove 11, when it enters the position of the positioning groove 12, it can be restricted by the positioning groove 12, so that it cannot detach from the positioning groove 12 on its own, thereby locking the first handle assembly 9 or the second handle assembly 10.

[0078] In this embodiment, the first handle assembly 9 or the second handle assembly 10 is restricted in the positioning groove 12 by providing a slot on the side wall of the first lever or the second lever, and providing a spring and a limiting block in the slot. When the limiting block corresponds to the positioning groove 12, under the action of the spring, the limiting block extends out from the slot and enters the positioning groove 12, connecting the handle mounting base 1 and the first handle assembly 9 together to form a lock.

[0079] It is understood that the locking structure in this embodiment is the structure described above, but it is not limited to this one structure. It can also be other structures that can lock the first handle assembly 9 or the second handle assembly 10.

[0080] In an optional embodiment, the handle mounting base 1 is provided with an angle scale, the center of which is on the axis of the inner shaft 3.

[0081] In this embodiment, by setting the angle scale, the rotation angle of the seeding amount adjustment shaft 7 and the seed metering calibration adjustment shaft can be precisely adjusted, thereby achieving precise adjustment of the seeding amount and seed metering calibration.

[0082] In this embodiment, the angle scale can be set as one set, shared by the first handle assembly 9 and the second handle assembly 10, or it can be set as two sets, with the first handle assembly 9 and the second handle assembly 10 corresponding to one set of angle scale respectively.

[0083] Secondly, this utility model provides a strip seeder, including the seeder adjustment device described in any of the foregoing embodiments.

[0084] The beneficial effects of this utility model embodiment are:

[0085] The nested arrangement of the inner shaft 3 and outer shaft 2 maximizes space utilization. Adjustments to the inner shaft 3 and outer shaft 2 can be made via the first handle assembly 9 and the second handle assembly 10, thereby adjusting the seeding rate and seed metering calibration. The sliding groove 11 limits the movement of the first handle assembly 9 and the second handle assembly 10, ensuring the stability of the adjustment. The entire operation requires no additional tools, solving the problem of inconvenient seeding rate adjustment and calibration switching in existing row seeders.

[0086] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A seeder adjustment device, characterized in that, It includes a handle mounting base, an inner shaft, an outer shaft, a mounting base, a first handle assembly, a second handle assembly, a first transmission mechanism, and a second transmission mechanism; The outer shaft is sleeved outside the inner shaft, and one end of the inner shaft extends out of the outer shaft and is rotatably mounted on the handle mounting base and connected to the first handle assembly; The other end of the inner shaft extends out of the outer shaft and is connected to one end of the first transmission mechanism. The other end of the first transmission mechanism is used to connect to the seeding calibration connection shaft. One end of the outer shaft is connected to the second handle assembly, and the other end of the outer shaft is rotatably mounted on the mounting base and connected to one end of the second transmission mechanism. The other end of the second transmission mechanism is used to connect to the seeding quantity adjustment shaft. The handle mounting base is provided with two arc-shaped sliding grooves with different diameters. The first handle assembly and the second handle assembly are respectively slidably disposed in the two sliding grooves.

2. The planter adjustment device of claim 1, wherein, The first transmission mechanism is a four-bar linkage structure; And / or, the second transmission mechanism is a four-bar linkage structure.

3. The planter adjustment device of claim 2, wherein, It also includes a limiting structure, which has a limiting groove, and the middle part of the four-bar linkage is disposed in the limiting groove.

4. The planter adjustment device of claim 1, wherein, The first handle assembly includes a first link and a first actuating part; One end of the first connecting rod is fixedly connected to the inner shaft, and the first actuating part is disposed at the other end of the first connecting rod and is slidably disposed in the sliding groove.

5. The planter adjustment device of claim 4, wherein, The first actuating part and the first connecting rod are rotatably connected.

6. The planter adjustment device of claim 1, wherein, The inner shaft and the outer shaft have an anti-friction structure.

7. The planter adjustment device of claim 6, wherein, The anti-friction structure is a lubricating layer or a bearing.

8. The planter adjustment device of claim 1, wherein, Both the first handle assembly and the second handle assembly are provided with a locking structure for locking after the first handle assembly and the second handle assembly move to a set position in the sliding groove.

9. The planter adjustment device of claim 1, wherein, The handle mounting base is provided with an angle scale, and the center of the angle scale is on the axis of the inner shaft.

10. A drill, characterized in that, Includes the seeder adjustment device as described in any one of claims 1-9.

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