An orchard weeding machine and an orchard weeding method

Abstract

The application discloses an orchard weeding machine and an orchard weeding method, wherein the weeding machine comprises a walking base and two groups of weeding assemblies; the two groups of weeding assemblies are connected with the walking base through an adjusting mechanism; the adjusting mechanism comprises two groups of connecting rod mechanisms, and each connecting rod mechanism comprises a swing rod, an intermediate rod, a terminal rod, a connecting rod and a driving rod; the rear end of the swing rod is rotatably installed relative to a seat body, and the intermediate rod and the terminal rod are rotatably connected with the middle part and the front end of the swing rod respectively; the connecting rod which is always parallel to the swing rod is further connected between the intermediate rod and the terminal rod; the driving rod is connected with the end part of the intermediate rod; the end part of the terminal rod is provided with the weeding assembly; the swing rods of the two groups of connecting rod mechanisms are coaxially hinged at a first shaft, and the two driving rods are driven by a motor to rotate at the same speed and in opposite directions around a second shaft. In the application, the two groups of weeding assemblies can normally work and can weed around the trees under the action of the adjusting mechanism, so that the weeds between the fruit trees and the weeds around the fruit trees can be conveniently removed.

Description

Technical Field

[0001] This invention relates to the field of weeding machinery technology, and in particular to an orchard weeding machine and orchard weeding method. Background Technology

[0002] In orchard management, weeding is a crucial step in maintaining the healthy growth of fruit trees. Traditional weeding methods rely heavily on manual labor or simple mechanical tools, which are inefficient and labor-intensive. With the development of agricultural mechanization, various types of weeding machines have emerged on the market. However, most existing weeding machines are suitable for large-scale weeding in open areas, which is insufficient for weeding operations in orchards. For example, when the weeding machine approaches the fruit trees, it needs to circle the trees to remove weeds, which not only increases the workload but also limits the efficiency of weeding.

[0003] In the prior art, patents such as CN111771522A and CN113016764A provide patents that can remove weeds around trees. In these technologies, a semi-circular base is set up and multiple weeding blades are set on the base to remove weeds around trees. However, these prior technologies are not very effective at removing weeds on general roads. Therefore, it is necessary to develop a weeding machine that can conveniently remove weeds between fruit trees and around fruit trees, taking into account the characteristics of orchard weeding. Summary of the Invention

[0004] Purpose of the invention: In order to overcome the shortcomings of the existing technology, the present invention provides an orchard weeding machine and orchard weeding method that is suitable for weeding operations in orchards, which can conveniently remove weeds between fruit trees and around fruit trees, thereby improving weeding efficiency.

[0005] Technical solution: To achieve the above objectives, the orchard weeder of the present invention includes a walking base and two sets of weeding components installed in front of the walking base; the two sets of weeding components are connected to the walking base through an adjustment mechanism; the walking base includes a seat and walking wheels;

[0006] The adjustment mechanism includes two sets of linkage mechanisms arranged symmetrically. Each set of linkage mechanisms includes a swing arm, an intermediate rod, an end rod, a connecting rod, and a drive rod.

[0007] The rear end of the swing arm is rotatably mounted relative to the base, and the middle rod and the end rod are rotatably connected to the middle and front ends of the swing arm, respectively; a connecting rod that is always parallel to the swing arm is also connected between the end rod and the middle rod, that is, the swing arm, the middle rod, the end rod and the connecting rod form a parallelogram; the drive rod is connected to the end of the middle rod; the end of the end rod is equipped with the weeding component; that is, two sets of weeding components are respectively installed at the ends of the end rods corresponding to the two sets of linkage mechanisms;

[0008] The two sets of linkage structures have their rocker arms coaxially hinged at a first axis, and the two drive rods are driven by a motor to rotate in opposite directions at the same speed around a second axis. The two sets of linkage mechanisms are symmetrically distributed on both sides of the line connecting the first and second axes.

[0009] Furthermore, the adjustment mechanism also includes a first rotating shaft and a second rotating shaft; the motor is drivenly connected to the first rotating shaft; a first gear and a first synchronous pulley are fixed on the first rotating shaft; a second gear and a second synchronous pulley are sleeved on the second rotating shaft and rotatably connected thereto; the second gear meshes with the first gear, and the first and second synchronous pulleys are connected by a synchronous belt. With this structure, it is possible to achieve the same motor driving two drive rods to rotate in opposite directions at the same speed.

[0010] Initially, the two weeding components are in close contact, allowing for normal ground weeding with a wide weeding area. When weeding around the fruit trees is required, the weeder is positioned directly opposite the trees, within a preset distance. Both weeding components are located at the base of the trees. The motor causes the two drive rods to rotate in opposite directions at equal speeds. These drive rods propel the ends of their corresponding connecting rods along an arc-shaped trajectory. The parallelogram mechanism amplifies this movement, allowing the end rods to move along an even larger arc, thus moving the weeding components along an arc-shaped trajectory. Because the two drive rods rotate in opposite directions at equal speeds, the two weeding components move clockwise and counterclockwise respectively until they are against each other on the back side of the fruit trees.

[0011] In the above structure, the weeding component is installed off the relative rotation axis of the end rod and the connecting rod, and the weeding component and the swing arm are placed on both sides of the connecting rod. In this way, when the weeding component moves around the fruit tree, the connecting rod mechanism will not come into contact with the fruit tree.

[0012] As can be seen, the above structure, with two sets of weeding components, provides a large working width when the two sets of weeding components are weeding normally. When weeding around the fruit trees, the two weeding components can be moved around the fruit trees by adjusting the mechanism, so as to realize the weeding operation around the fruit trees, reduce the difficulty of weeding around the fruit trees and improve the weeding efficiency.

[0013] Furthermore, the weeding assembly includes a cutter and a housing that covers the cutter therein, as well as a cutter motor for driving the cutter.

[0014] Furthermore, the wheels are driven by an internal combustion engine mounted on the seat.

[0015] Furthermore, the seat is also equipped with a pair of hand handles. By setting the hand handles, the operator can push the weeder to operate and easily control the weeder's path. The wheels are driven by an internal combustion engine, which can reduce the labor intensity of the operator.

[0016] Furthermore, the housing has a flat side, making the overall housing D-shaped; when the distance between the two sets of weeding components is minimal, the flat sides of the two corresponding housings abut against each other; in the top view, the angles of the cutters of the two sets of weeding components always differ by a specific angle, such as 90°. This allows for a closer minimum distance between the two cutters, and their working areas overlap, ensuring that no weeds are missed between the two sets of weeding components and effectively preventing the cutters from colliding with each other.

[0017] A method for weeding in an orchard, based on the aforementioned orchard weeding machine, includes the following steps:

[0018] The walking base carries the weeding component and moves it along the weeding path in the orchard;

[0019] When the weeding components are not obstructed by fruit trees, the two sets of weeding components are brought into contact with each other;

[0020] When the weeding components are blocked by the fruit tree, the walking base is aligned with the trunk of the fruit tree, and the distance between the two weeding components and the trunk of the fruit tree is within a preset range. Then, the adjustment mechanism is controlled to operate, so that the two weeding components move clockwise and counterclockwise around the trunk of the fruit tree, respectively, until the two weeding components abut against each other on the back side of the trunk of the fruit tree. Finally, the adjustment mechanism is reversed until the two weeding components return to their initial positions.

[0021] Using the above method, weeds around the trunk of the fruit tree can be removed at a fixed location without having the weeder walk around the fruit tree to remove the weeds, which can effectively improve efficiency and reduce the complexity of the operation.

[0022] Beneficial effects: The orchard weeding machine and orchard weeding method of the present invention have the following beneficial effects:

[0023] By setting up two sets of weeding components, the two sets of weeding components have a large working width when weeding normally. When weeding around the fruit trees, the two weeding components can be moved around the fruit trees by adjusting the mechanism, so as to realize the weeding operation around the fruit trees, reduce the difficulty of weeding around the fruit trees and improve the weeding efficiency. Attached Figure Description

[0024] Figure 1 This is a structural diagram of an orchard weeding machine;

[0025] Figure 2 To adjust the combined structure diagram of the mechanism and weeding components;

[0026] Figure 3 To adjust the structural diagram of the drive mechanism in the mechanism;

[0027] Figure 4 This is a structural diagram of the weeding component;

[0028] Figure 5 This is a structural diagram of the weeding component in a preferred embodiment.

[0029] In the diagram: 1-Walking base; 11-Seat body; 12-Walking wheel; 13-Internal combustion engine; 14-Handle handle; 2-Weeding assembly; 21-Cutter; 22-Cover; 23-Cutter motor; 3-Adjustment mechanism; 31-Swing arm; 32-Intermediate rod; 33-End rod; 34-Connecting rod; 35-Drive rod; 36-Motor; 37-First shaft; 38-Second shaft; 39-First gear; 310-First synchronous pulley; 311-Second gear; 312-Second synchronous pulley; 313-Synchronous belt; 314-Slide. Detailed Implementation

[0030] The invention will now be further described with reference to the accompanying drawings.

[0031] like Figure 1 The orchard weeder shown includes a base 1 and two sets of weeding components 2 mounted in front of the base 1. The two sets of weeding components 2 are connected to the base 1 via an adjustment mechanism 3. The base 1 includes a seat 11 and wheels 12. The wheels 12 are driven by an internal combustion engine 13 mounted on the seat 11. A pair of handles 14 are also installed on the seat 11. By providing the handles 14, the operator can push the weeder to easily control its movement. The wheels 12, driven by the internal combustion engine 13, reduce the labor intensity of the operator.

[0032] like Figure 2As shown, the adjustment mechanism 3 includes two sets of linkage mechanisms arranged symmetrically. Each set of linkage mechanisms includes a swing rod 31, an intermediate rod 32, an end rod 33, a connecting rod 34, and a drive rod 35.

[0033] The rear end of the swing arm 31 is rotatably mounted relative to the base 11, and the intermediate rod 32 and the end rod 33 are rotatably connected to the middle and front ends of the swing arm 31, respectively; a connecting rod 34 that is always parallel to the swing arm 31 is also connected between the end rod 33 and the intermediate rod 32, that is, the swing arm 31, the intermediate rod 32, the end rod 33 and the connecting rod 34 form a parallelogram; the drive rod 35 is connected to the end of the intermediate rod 32; the end of the end rod 33 is equipped with the weeding component 2; that is, two sets of weeding components 2 are respectively installed at the ends of the end rods 33 corresponding to the two sets of linkage mechanisms;

[0034] The two sets of linkage structures have their rocker arms 31 coaxially hinged at a first axis, and their two drive rods 35 are driven by a motor 36 to rotate in opposite directions at the same speed around a second axis. The two sets of linkage mechanisms are symmetrically distributed on both sides of the line connecting the first and second axes.

[0035] Preferably, the adjustment mechanism 3 further includes a first rotating shaft 37 and a second rotating shaft 38; the motor 36 is drivenly connected to the first rotating shaft 37; a first gear 39 and a first synchronous pulley 310 are fixed on the first rotating shaft 37; a second gear 311 and a second synchronous pulley 312 are sleeved on the second rotating shaft 38 and rotatably connected thereto; the second gear 311 meshes with the first gear 39, and the first synchronous pulley 310 and the second synchronous pulley 312 are connected by a synchronous belt 313. With the above structure, the same motor 36 can drive two drive rods 35 to rotate in opposite directions at the same speed.

[0036] Initially, the two weeding components 2 are in a close-to-each-other state, allowing for normal ground weeding operations with a wide weeding area. When weeding around the fruit trees is required, the weeder is positioned directly opposite the trees, with the distance between the weeder and the trees within a preset range. At this point, both weeding components 2 are located at the base of the fruit trees. The motor 36 causes the two drive rods 35 to rotate in opposite directions at equal speeds. The drive rods 35 drive the ends of the corresponding connecting rods 34 to move along an arc-shaped trajectory. Through the amplification of the parallelogram mechanism, the end rod 33 can move along a larger arc-shaped trajectory, thus causing the weeding components 2 to move along an arc-shaped trajectory. Because the two drive rods 35 rotate in opposite directions at equal speeds, the two weeding components 2 move clockwise and counterclockwise respectively until they are against each other on the back side of the fruit trees. Figure 2 As shown by the dashed line.

[0037] In the above structure, the installation position of the weeding component 2 is offset from the relative rotation axis of the end rod 33 and the connecting rod 34, and the weeding component 2 and the swing rod 31 are placed on both sides of the connecting rod 34. In this way, when the weeding component 2 moves around the fruit tree, the connecting rod mechanism will not come into contact with the fruit tree.

[0038] As can be seen, through the above structure, by setting two sets of weeding components 2, there is a large working width when the two sets of weeding components 2 are weeding normally. When weeding around the fruit trees, the two weeding components 2 can be moved around the fruit trees by adjusting the mechanism 3, so as to realize the weeding operation around the fruit trees, reduce the difficulty of weeding around the fruit trees, and improve the weeding efficiency.

[0039] like Figure 4 As shown, the weeding assembly 2 includes a cutter 21 and a housing 22 that covers the cutter, and also includes a cutter motor 23 that drives the cutter 21 to operate.

[0040] Preferably, such as Figure 5 As shown, the cover 22 has a flat side, making the cover 22 generally D-shaped. When the distance between the two sets of weeding components 2 is minimal, the flat sides of the two corresponding covers 22 abut against each other. In a top-view direction, the angles of the cutters 21 of the two sets of weeding components 2 always differ by a specific angle, such as 90°. This allows the closest possible distance between the two cutters 21 to be closer, and their working areas overlap, ensuring that no weeds are missed between the two sets of weeding components 2 and effectively preventing the cutters 21 of the two sets of weeding components 2 from clashing with each other.

[0041] The present invention also provides a method for weeding in an orchard, which is based on the above-mentioned orchard weeding machine, and the method includes:

[0042] The walking base 1 carries the weeding component 2 and moves it along the weeding path in the orchard;

[0043] When the weeding component 2 is not obstructed by fruit trees, the two sets of weeding components 2 are brought into contact with each other;

[0044] When the weeding component 2 is blocked by the fruit tree, the walking base 1 is aligned with the trunk of the fruit tree, and the distance between the two weeding components 2 and the trunk of the fruit tree is within a preset range. Then, the adjustment mechanism 3 is controlled to operate, so that the two weeding components 2 move clockwise and counterclockwise around the trunk of the fruit tree, respectively, until the two weeding components 2 abut against each other on the back side of the trunk of the fruit tree. Finally, the adjustment mechanism 3 is reversed until the two weeding components 2 return to their initial positions.

[0045] Using the above method, weeds around the trunk of the fruit tree can be removed at a fixed location without having the weeder walk around the fruit tree to remove the weeds, which can effectively improve efficiency and reduce the complexity of the operation.

[0046] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An orchard weeding machine, comprising a walking base (1) and two sets of weeding components (2) mounted in front of the walking base (1); the two sets of weeding components (2) are connected to the walking base (1) via an adjustment mechanism (3); the walking base (1) comprises a seat (11) and walking wheels (12); characterized in that: The adjustment mechanism (3) includes two sets of linkage mechanisms arranged symmetrically. Each set of linkage mechanisms includes a swing rod (31), a middle rod (32), an end rod (33), a connecting rod (34), and a drive rod (35). The rear end of the swing arm (31) is rotatably mounted relative to the base (11), and the middle rod (32) and the end rod (33) are rotatably connected to the middle and front ends of the swing arm (31), respectively; a connecting rod (34) that is always parallel to the swing arm (31) is also connected between the end rod (33) and the middle rod (32); the drive rod (35) is connected to the end of the middle rod (32); the weeding component (2) is installed at the end of the end rod (33). The two sets of linkage mechanisms have their rocker arms (31) coaxially hinged at the first axis, and the two drive rods (35) are driven by the motor (36) to rotate in opposite directions at the same speed around the second axis.

2. The orchard weeder according to claim 1, characterized in that, The adjustment mechanism (3) further includes a first rotating shaft (37) and a second rotating shaft (38); the motor (36) is driven to the first rotating shaft (37); a first gear (39) and a first synchronous pulley (310) are fixed on the first rotating shaft (37); a second gear (311) and a second synchronous pulley (312) are sleeved on the second rotating shaft (38) and rotated therewith; the second gear (311) meshes with the first gear (39), and the first synchronous pulley (310) and the second synchronous pulley (312) establish a transmission relationship through a synchronous belt (313).

3. The orchard weeder according to claim 1, characterized in that, The weeding assembly (2) includes a cutter (21) and a housing (22) that covers the cutter therein, and also includes a cutter motor (23) that drives the cutter (21) to operate.

4. The orchard weeder according to claim 1, characterized in that, The wheels (12) are driven by an internal combustion engine (13) mounted on the seat (11).

5. The orchard weeder according to claim 1, characterized in that, A pair of handrails (14) are also installed on the seat (11).

6. The orchard weeder according to claim 3, characterized in that, The cover (22) has a flat side, making the cover (22) as a whole D-shaped; when the distance between the two sets of weeding components (2) is the smallest, the flat sides of the two corresponding covers (22) abut against each other.

7. A method for weeding in an orchard, based on the orchard weeding machine according to any one of claims 1-6, characterized in that the method... include: The walking base (1) carries the weeding component (2) and moves it along the weeding path in the orchard; When the weeding components (2) are not obstructed by fruit trees, the two sets of weeding components (2) are brought into contact with each other; When the weeding component (2) is blocked by the fruit tree, the walking base (1) is positioned directly opposite the trunk of the fruit tree, and the distance between the two weeding components (2) and the trunk of the fruit tree is within a preset range. Then, the adjustment mechanism (3) is controlled to operate, so that the two weeding components (2) move clockwise and counterclockwise around the trunk of the fruit tree respectively, until the two weeding components (2) abut against each other on the back side of the trunk of the fruit tree. Finally, the adjustment mechanism (3) is reversed until the two weeding components (2) return to their initial positions.

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