Orchard weeding machine and orchard weeding method

Abstract

The invention discloses an orchard weeding machine and an orchard weeding method. The weeding machine comprises a walking base and two weeding assemblies. The two weeding assemblies are connected with the walking base through the adjusting mechanism. The adjusting mechanism comprises two groups of connecting rod mechanisms; each connecting rod mechanism comprises a swing rod, a middle rod, a tail end rod, a connecting rod and a driving rod; the rear end of the swing rod is rotationally installed relative to the seat body, and the middle rod and the tail end rod are rotationally connected with the middle and the front end of the swing rod respectively. A connecting rod parallel to the swing rod all the time is further connected between the tail end rod and the middle rod. The driving rod is connected with the end of the middle rod; a weeding assembly is mounted at the end part of the tail end rod; the swing rods of the two connecting rod structures are coaxially hinged at a first axis, and the two driving rods are driven by a motor to reversely rotate around a second axis at a constant speed. According to the fruit tree weeding device, the two weeding assemblies can work normally and can weed around trees under the action of the adjusting mechanism, and weeds between fruit trees and weeds around the fruit trees can be conveniently removed.

Description

Technical Field

[0001] The invention relates to the technical field of weeding machinery, and in particular to an orchard weeding machine and an orchard weeding method. Background Art

[0002] In orchard management, weeding is an important part of maintaining the healthy growth of fruit trees. Traditional weeding methods mostly rely on manual or simple mechanical tools, which are inefficient and labor-intensive. With the development of agricultural mechanization, various types of weeders have appeared on the market, but most existing weeders are suitable for large-scale weeding in open areas, which is insufficient for weeding in orchards. For example, when a weeder approaches a fruit tree, in order to remove the weeds around the fruit tree, the machine needs to be rotated around the fruit tree as a whole, 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 weed around trees. In these technologies, a semicircular machine base is provided, and a plurality of weeding cutters are provided on the machine base, so that weeding can be performed around trees. However, in these prior arts, the weeding effect on general roads is relatively poor. Therefore, it is necessary to develop a weeder that can conveniently remove weeds between fruit trees and around fruit trees based on the characteristics of orchard weeding. Summary of the invention

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

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

[0006] The adjustment mechanism comprises two groups of connecting rod mechanisms arranged symmetrically, each group of the connecting rod mechanisms comprises a rocker rod, an intermediate rod, an end rod, a connecting rod and a driving rod;

[0007] The rear end of the swing rod is rotatably mounted relative to the seat body, and the intermediate rod and the terminal rod are rotatably connected to the middle and front ends of the swing rod respectively; the terminal rod and the intermediate rod are also connected to the connecting rod which is always parallel to the swing rod, that is, the swing rod, the intermediate rod, the terminal rod and the connecting rod form a parallelogram; the driving rod is connected to the end of the intermediate rod; the end of the terminal rod is installed with the weeding assembly; that is, two groups of weeding assemblies are respectively installed at the ends of the terminal rods corresponding to the two groups of connecting rod mechanisms;

[0008] The swing rods of the two sets of connecting rod structures are coaxially hinged at the first axis, and the two driving rods are driven by a motor to rotate in opposite directions at the same speed around the second axis. The two sets of connecting rod mechanisms are symmetrically distributed on both sides of the line between the first axis and the second axis.

[0009] Furthermore, the adjustment mechanism also includes a first rotating shaft and a second rotating shaft; the motor is drivingly connected to the first rotating shaft; a first gear and a first synchronous wheel are fixed to the first rotating shaft; a second gear and a second synchronous wheel are sleeved on the second rotating shaft and are rotatably connected thereto; the second gear is meshed with the first gear, and a transmission relationship is established between the first synchronous wheel and the second synchronous wheel via a synchronous belt. Through the above structure, the same motor can drive the two drive rods to rotate in opposite directions at the same speed.

[0010] In the initial state, the two groups of weeding components are in a state of being close to each other. In this state, normal ground weeding operations can be carried out with a large weeding width. When it is necessary to weed around the fruit trees, the weeder is facing the fruit trees, and the distance between the weeder and the fruit trees is within the preset distance range. At this time, the two weeding components are located at the root of the fruit trees, and the motor causes the two driving rods to rotate in opposite directions at the same speed. The driving rods drive the ends of the corresponding connecting rods to move along a circular arc trajectory. After being magnified by the parallelogram mechanism, the ends of the terminal rods can move along a larger circular arc trajectory, that is, the weeding components move along the circular arc trajectory. Since the two driving rods rotate in opposite directions at the same speed, the two weeding components move clockwise and counterclockwise respectively until the two are close to each other on the back of the fruit tree.

[0011] In the above structure, the installation position of the weeding assembly deviates from the relative rotation axis between the end rod and the connecting rod, and the weeding assembly and the swing rod are placed on both sides of the connecting rod. In this way, when the weeding assembly moves around the fruit tree, the connecting rod mechanism will not contact the fruit tree.

[0012] It can be seen that through the above structure, by setting up two groups of weeding components, the two groups of weeding components have a larger operating width when weeding normally. When weeding around fruit trees, the two weeding components can be moved around the fruit trees through the adjustment mechanism to achieve weeding operations on the weeds 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 cutting knife and a cover shell that covers the cutting knife, and also includes a cutting knife motor that drives the cutting knife to operate.

[0014] Furthermore, the running wheels are driven by an internal combustion engine installed on the base body.

[0015] Furthermore, a pair of handgrips are installed on the seat body. By providing the handgrips, a person can push the lawn mower to operate so as to facilitate the control of the walking path of the lawn mower. The walking wheels are driven by the internal combustion engine to reduce the labor intensity of the person.

[0016] Furthermore, the housing has a straight side, so that the housing is D-shaped as a whole; when the distance between the two groups of weeding components is the smallest, the two corresponding straight sides of the housing abut against each other; in the top view direction, the angles of the cutting knives of the two groups of weeding components always differ by a specific angle, such as 90°. In this way, the closest distance between the two cutting knives can be made closer, and the operating areas of the two have an overlapping area, so that there is no grass that cannot be removed between the two groups of weeding components, and the cutting knives of the two groups of weeding components can be effectively prevented from hitting each other.

[0017] An orchard weeding method, based on the orchard weeding machine, comprises:

[0018] The walking base moves along a weeding path in the orchard with the weeding assembly;

[0019] When the weeding components are not blocked by fruit trees, the two groups of weeding components are placed against each other;

[0020] When the weeding assembly is blocked by the fruit tree, the walking base is made to face the trunk of the fruit tree, and the distance between the two weeding assemblies and the trunk of the fruit tree is within a preset distance range. Then, the adjustment mechanism is controlled to operate so that the two weeding assemblies respectively move clockwise and counterclockwise around the trunk of the fruit tree until the two weeding assemblies abut against each other on the rear side of the trunk of the fruit tree; finally, the adjustment mechanism is operated in the reverse direction until the two weeding assemblies return to their initial positions.

[0021] By adopting the above method, the weeds around the trunk of the fruit tree can be removed at a fixed position, and there is no need to make the weeder go 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 groups of weeding components, the two groups of weeding components have a larger operating width when weeding normally. When weeding around fruit trees, the two weeding components can be moved around the fruit trees through the adjustment mechanism to achieve weeding operations on the weeds around the fruit trees, reduce the difficulty of weeding around the fruit trees, and improve the weeding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0025] Figure 2 It is a combined structural diagram of the adjustment mechanism and the weeding component;

[0026] Figure 3 A structural diagram of a driving mechanism in an adjustment mechanism;

[0027] Figure 4 A structural diagram of the weeding component;

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

[0029] In the figure: 1-travel base; 11-base body; 12-travel wheel; 13-internal combustion engine; 14-hand handle; 2-weeding component; 21-cutting knife; 22-cover shell; 23-cutting knife motor; 3-adjusting mechanism; 31-rocker; 32-middle rod; 33-end rod; 34-connecting rod; 35-driving rod; 36-motor; 37-first rotating shaft; 38-second rotating shaft; 39-first gear; 310-first synchronous wheel; 311-second gear; 312-second synchronous wheel; 313-synchronous belt; 314-sliding seat. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] like Figure 1 The orchard weeder shown in the figure comprises a walking base 1 and two groups of weeding components 2 installed in front of the walking base 1; the two groups of weeding components 2 are connected to the walking base 1 through an adjustment mechanism 3; the walking base 1 comprises a base body 11 and walking wheels 12; the walking wheels 12 are driven and operated by an internal combustion engine 13 installed on the base body 11. A pair of hand handles 14 are also installed on the base body 11. By providing the hand handles 14, a person can push the weeder to operate so as to facilitate the control of the walking path of the weeder. The walking wheels 12 are driven and operated by the internal combustion engine 13, which can reduce the labor intensity of the person.

[0032] like Figure 2As shown, the adjustment mechanism 3 includes two groups of connecting rod mechanisms arranged symmetrically, and each group of the connecting rod mechanisms includes a rocker rod 31, an intermediate rod 32, an end rod 33, a connecting rod 34 and a driving rod 35;

[0033] The rear end of the swing rod 31 is rotatably mounted relative to the seat body 11, and the middle rod 32 and the end rod 33 are rotatably connected to the middle and front ends of the swing rod 31 respectively; the connecting rod 34 which is always parallel to the swing rod 31 is also connected between the end rod 33 and the middle rod 32, that is, the swing rod 31, the middle rod 32, the end rod 33 and the connecting rod 34 form a parallelogram; the driving rod 35 is connected to the end of the middle rod 32; the end of the end rod 33 is installed with the weeding assembly 2; that is, two groups of weeding assemblies 2 are respectively installed at the ends of the end rods 33 corresponding to the two groups of connecting rod mechanisms;

[0034] The two sets of the swing rods 31 of the connecting rod structure are coaxially hinged at the first axis, and the two driving rods 35 are driven by the motor 36 to rotate in opposite directions at the same speed around the second axis. The two sets of connecting rod mechanisms are symmetrically distributed on both sides of the line between the first axis and the second axis.

[0035] Preferably, the adjustment mechanism 3 further includes a first rotating shaft 37 and a second rotating shaft 38; the motor 36 is drivingly connected to the first rotating shaft 37; a first gear 39 and a first synchronous wheel 310 are fixed to the first rotating shaft 37; a second gear 311 and a second synchronous wheel 312 are sleeved on the second rotating shaft 38 and are rotatably connected thereto; the second gear 311 is meshed with the first gear 39, and a transmission relationship is established between the first synchronous wheel 310 and the second synchronous wheel 312 via a synchronous belt 313. Through the above structure, the same motor 36 can drive the two driving rods 35 to rotate in opposite directions at the same speed.

[0036] In the initial state, the two groups of weeding components 2 are in a state of being close to each other. In this state, normal ground weeding operations can be carried out with a larger weeding width. When it is necessary to weed around the fruit trees, the weeder is facing the fruit trees, and the distance between the weeder and the fruit trees is within a preset distance range. At this time, the two weeding components 2 are both located at the root of the fruit trees, and the motor 36 causes the two drive rods 35 to rotate in opposite directions at the same speed. The drive rods 35 drive the corresponding ends of the connecting rods 34 to move along a circular trajectory. After being magnified by the parallelogram mechanism, the ends of the end rods 33 can move along a larger circular trajectory, that is, the weeding components 2 move along the circular trajectory. Since the two drive rods 35 rotate in opposite directions at the same speed, the two weeding components 2 move clockwise and counterclockwise respectively until they are close to each other on the back of the fruit tree, as shown in FIG. Figure 2 Shown by the dashed line.

[0037] In the above structure, the installation position of the weeding component 2 deviates from the relative rotation axis between 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 contact the fruit tree.

[0038] It can be seen that through the above structure, by setting up two groups of weeding components 2, the two groups of weeding components 2 have a larger operating width when weeding normally. When weeding around fruit trees, the two weeding components 2 can be moved around the fruit trees through the adjustment mechanism 3, so as to achieve weeding operations on the weeds 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 cutting knife 21 and a cover 22 for covering the cutting knife therein, and also includes a cutting knife motor 23 for driving the cutting knife 21 to operate.

[0040] Preferably, if Figure 5 As shown, the cover 22 has a straight side, so that the cover 22 is D-shaped as a whole; when the distance between the two groups of the weeding components 2 is the smallest, the two corresponding straight sides of the cover 22 are against each other; in the top view direction, the angles of the cutting knives 21 of the two groups of the weeding components 2 are always different by a specific angle, such as 90°. In this way, the closest distance between the two cutting knives 21 can be made closer, and the operating areas of the two have an overlapping area, so that there is no grass that cannot be removed between the two groups of weeding components 2, and the cutting knives 21 of the two groups of weeding components 2 can be effectively prevented from hitting each other.

[0041] The present invention also provides an orchard weeding method, which is based on the orchard weeding machine mentioned above, and the method comprises:

[0042] The walking base 1 moves along a weeding path in the orchard with the weeding assembly 2;

[0043] When the weeding components 2 are not blocked by fruit trees, the two groups of weeding components 2 are placed against each other;

[0044] When the weeding component 2 is blocked by the fruit tree, the walking base 1 is made to face 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 distance 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 rear side of the trunk of the fruit tree; finally, the adjustment mechanism 3 is operated in the reverse direction until the two weeding components 2 return to the initial position.

[0045] By adopting the above method, the weeds around the trunk of the fruit tree can be removed at a fixed position, and there is no need to make the weeder go around the fruit tree to remove the weeds, which can effectively improve efficiency and reduce the complexity of the operation.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An orchard weeder, comprising a walking base (1) and two groups of weeding components (2) installed in front of the walking base (1); the two groups of weeding components (2) are connected to the walking base (1) through an adjustment mechanism (3); the walking base (1) comprises a base body (11) and walking wheels (12); characterized in that: The adjustment mechanism (3) comprises two groups of connecting rod mechanisms arranged symmetrically, and each group of the connecting rod mechanisms comprises a rocker rod (31), an intermediate rod (32), an end rod (33), a connecting rod (34) and a driving rod (35); The rear end of the swing rod (31) is rotatably mounted relative to the seat body (11), and the middle rod (32) and the end rod (33) are rotatably connected to the middle part and the front end of the swing rod (31) respectively; the connecting rod (34) which is always parallel to the swing rod (31) is also connected between the end rod (33) and the middle rod (32); the driving rod (35) is connected to the end of the middle rod (32); the weeding assembly (2) is mounted on the end of the end rod (33); The swing rods (31) of the two sets of connecting rod structures are coaxially hinged at a first axis, and the two driving rods (35) are driven by a motor (36) to rotate at the same speed and in opposite directions around a second axis.

2. The orchard weeder according to claim 1, characterized in that: The adjustment mechanism (3) further comprises a first rotating shaft (37) and a second rotating shaft (38); the motor (36) is drivingly connected to the first rotating shaft (37); a first gear (39) and a first synchronous wheel (310) are fixed to the first rotating shaft (37); a second gear (311) and a second synchronous wheel (312) are sleeved on the second rotating shaft (38) and are rotatably connected thereto; the second gear (311) is meshed with the first gear (39), and a transmission relationship is established between the first synchronous wheel (310) and the second synchronous wheel (312) via a synchronous belt (313).

3. The orchard weeder according to claim 1, characterized in that: The weeding component (2) comprises a cutting knife (21) and a cover shell (22) covering the cutting knife therein, and also comprises a cutting knife motor (23) driving the cutting knife (21) to operate.

4. The orchard weeder according to claim 1, characterized in that: The running wheel (12) is driven by an internal combustion engine (13) installed on the base (11).

5. The orchard weeder according to claim 1, characterized in that: A pair of handhold handles (14) are also mounted on the seat body (11).

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

7. A method for weeding an orchard, based on the orchard weeding machine according to any one of claims 1 to 6, characterized in that: Methods include: The walking base (1) carries the weeding assembly (2) and moves along a weeding path in the orchard; When the weeding components (2) are not blocked by fruit trees, the two groups of weeding components (2) are placed against each other; When the weeding components (2) are blocked by a 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 distance range. Then, the adjustment mechanism (3) is controlled to operate so that the two weeding components (2) respectively move clockwise and counterclockwise around the trunk of the fruit tree until the two weeding components (2) abut against each other at the rear side of the trunk of the fruit tree; finally, the adjustment mechanism (3) is operated in the reverse direction until the two weeding components (2) return to their initial positions.

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