Electric inter-plant weeding machine for vineyard

Abstract

The utility model discloses an electric inter-plant weeding machine for a vineyard. The electric inter-plant weeding machine comprises a supporting component, a sensing component, an avoiding component and a weeding cutter. During weeding operation, along with advancing of a tractor, when an induction feeler lever in the induction component touches grape plants, a hexagonal pipe and a double-groove belt pulley are driven to rotate around the center of the pulley, the double-groove belt pulley drives a stay wire of the stay wire type displacement sensor to stretch out and drives a reset tension spring to stretch, and the stay wire type displacement sensor can detect the stretching distance of the stay wire; when the stretching distance exceeds a certain value, the push rod of the servo electric cylinder contracts to drive the outer sleeve to contract, and then the weeding cutter is driven to contract to avoid the grape plants; when the induction feeler lever bypasses a grape plant along with continuous advancing of the tractor, the reset tension spring drives the double-groove belt pulley to reset so as to drive a stay wire of the stay wire type displacement sensor and the induction feeler lever to reset, after the stay wire is reset, the push rod of the servo electric cylinder stretches out, the outer sleeve is driven to stretch out, and then the weeding cutter is driven to stretch out to continue weeding operation. And the steps are repeated. The servo electric cylinder is adopted as an executing mechanism of an avoiding component, three sets of seamless steel pipes are designed to bear shearing force borne by an electric cylinder push rod in the working process, and compared with a traditional hydraulic executing mechanism, the weeding device is simple in structure, low in cost, easy to maintain, high in avoiding speed, capable of effectively improving the efficiency of weeding between grapery plants and suitable for large-scale popularization and application. The working cost is reduced.

Description

Technical Field

[0001] The utility model relates to an electric weeder between rows in a vineyard, belonging to the technical field of agricultural machinery. Background Art

[0002] In modern agricultural production, efficient vineyard management is crucial for improving grape yield and quality. Weeding is a fundamental and critical task in vineyard management. Traditional manual weeding methods are not only inefficient and labor-intensive, but also fail to meet the demands of modern agriculture for efficiency and environmental protection. Furthermore, manual weeding struggles to ensure consistency and timeliness, often impacting the grape growing environment.

[0003] To improve weed control efficiency and reduce labor input, mechanized weeding is becoming increasingly mainstream. However, existing mechanized weeding equipment presents numerous challenges when weeding between grapevines. In particular, the limited space between grapevines, coupled with the fragility of grape plants, makes them susceptible to damage from conventional weeding machines. This not only reduces grape yield and quality but also increases the risk of disease.

[0004] Furthermore, some existing automatic obstacle avoidance and weeding mechanisms often rely on complex sensors and control systems, which not only increases equipment cost but also makes maintenance more difficult. Therefore, developing an electric automatic obstacle avoidance and weeding mechanism with a simple structure, low cost, easy operation, and effective obstacle avoidance is of great significance for promoting mechanized vineyard management.

[0005] To address the shortcomings of existing technologies, this utility model provides an electric, automatic, obstacle-avoiding, weeding mechanism for vineyards. This mechanism, powered by an electric drive, automatically detects the location of grape plants and adjusts its weeding path when encountering them, avoiding damage. Furthermore, this mechanism boasts a compact design and simple operation, significantly improving weeding efficiency and quality in vineyards without excessive cost increases, providing an effective technical solution for modern vineyard management. Summary of the Invention

[0006] As previously described, to achieve the aforementioned objectives, the present invention provides a vineyard electric inter-row weeder with a simple structure, easy operation, low cost, and the ability to effectively avoid damaging grape plants. The device comprises four components: a support component, a sensing component, an avoidance component, and a weeding cutter. The support component comprises a frame, a fixed tube, and a depth-limiting wheel; the sensing component comprises a square tube, a wire-type displacement sensor, a bracket, a reset spring, a fixed ferrule, a double-groove pulley, a rolling bearing seat, a hexagonal tube, and a sensing feeler; and the avoidance component comprises a fixed tube limiter steel rod, a double-ended fisheye bearing, an inner sleeve limiter steel rod, an inner sleeve, a servo electric cylinder, a fixing bolt, a fisheye bearing, an outer sleeve limiter steel rod, and an outer sleeve.

[0007] The weeder is connected to the tractor via a three-point suspension mechanism on the frame. The fixed tube is welded to the frame, and a set of depth-limiting pulleys is secured to the frame via two pairs of U-bolts. The square tube is welded to the frame, the rolling bearing seat is welded to the square tube, and the bracket is welded to the square tube. The hexagonal tube and the inner ring of the rolling bearing seat are connected via a clearance fit, allowing for free rotation around the center. A double-groove pulley is positioned within the hexagonal tube, above the rolling bearing seat. A fixed sleeve is positioned within the hexagonal tube, above the double-groove pulley, limiting axial displacement of the double-groove pulley and downward axial displacement of the hexagonal tube. The sensing rod is welded to the end of the hexagonal tube. A pull-wire displacement sensor is secured to the bracket via a threaded connection at the bottom. The pull-wire head is secured in the first groove of the double-groove pulley. One end of the reset spring is attached to the bracket and the other end is secured in the second groove of the double-groove pulley. The servo electric cylinder is fixed to the inner sleeve via fixing bolts. A pair of holes are formed at the base of the inner sleeve. An inner sleeve limiting steel rod is the same length as the outer diameter of the inner sleeve and is fixed in the hole at the base of the inner sleeve via an interference fit. A pair of holes are formed at the base of the fixed tube. A fixed tube limiting steel rod is the same length as the outer diameter of the fixed tube and is fixed in the hole at the base of the fixed tube via an interference fit. The ends of a double-ended fisheye bearing are respectively mounted on the two limiting steel rods, firmly connecting the inner sleeve and the fixed tube. A pair of holes are formed in the outer sleeve. The outer sleeve limiting steel rod is the same length as the outer diameter of the outer sleeve and is fixed in the holes of the outer sleeve via an interference fit. One end of the fisheye bearing is threadedly connected to the top of the servo electric cylinder's push rod, while the other end of the bearing is mounted on the outer sleeve limiting steel rod, firmly connecting the outer sleeve and the servo electric cylinder's push rod. The weeding tool is threadedly fixed to the end of the outer sleeve.

[0008] The electric inter-row weeder for vineyards is fixedly connected to a tractor via a three-point suspension mechanism on a frame and always moves along the traveling direction of the tractor. The weeding cutters penetrate into the soil and weed along the traveling direction of the tractor.

[0009] When the tractor is moving, when the sensing rod touches the grape plant, it drives the hexagonal tube and the double-groove pulley to rotate around the center of the pulley. The double-groove pulley drives the wire of the pull-wire displacement sensor to extend, and at the same time drives the reset spring to stretch.

[0010] The pull-wire displacement sensor can measure the distance the pull-wire extends. When the distance exceeds a certain value, the servo electric cylinder push rod contracts, driving the outer sleeve to contract, and then driving the weeding tool to contract to avoid the grape plants.

[0011] When the sensing rod passes by the grape plants as the tractor continues to move, the reset spring drives the double-groove pulley to reset under the action of the spring force, thereby driving the pull wire of the pull wire displacement sensor and the sensing rod to reset.

[0012] After the pull wire of the pull wire displacement sensor is reset, the servo electric cylinder push rod extends, drives the outer sleeve to extend, and further drives the weeding cutter to extend to continue the weeding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 It is a perspective view of the avoidance component of the utility model in the overall machine structure.

[0015] Figure 3 It is a structural diagram of the induction component of the utility model.

[0016] Figure 4 It is a front view of the sensing component of the present invention.

[0017] Figure 5 It is a structural schematic diagram of the avoidance component of the present utility model.

[0018] Figure 6 It is a perspective view of the avoidance component of the present utility model.

[0019] In the figure: 1-Supporting components: 11-Frame; 12-Fixed tube; 13-Depth limiting wheel; 2-Sensing components: 21-Square tube; 22-Wire-type displacement sensor; 23-Bracket; 24-Reset spring; 25-Fixed sleeve; 26-Double groove pulley; 27-Rolling bearing seat; 28-Hexagonal tube; 29-Sensing touch rod; 3-Avoidance components: 31-Fixed tube limiting steel rod; 32-Double-headed fisheye bearing; 33-Inner sleeve limiting steel rod; 34-Inner sleeve; 35-Servo electric cylinder; 36-Fixed bolt; 37-Fisheye bearing; 38-Outer sleeve limiting steel rod; 39-Outer sleeve; 4-Weeding tool. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings. Figure 1 The figure shows the structure diagram of the electric weeder for vineyards according to the present invention, which includes four parts: a supporting component 1 , a sensing component 2 , an avoiding component 3 , and a weeding cutter 4 . Figure 2 The figure shows a perspective view of the avoidance component of the electric inter-row weeder for vineyards according to the present invention in the overall structure of the machine, wherein the support component 1 includes a frame 11, a fixed tube 12 and a depth-limiting wheel 13; the sensing component 2 includes a square tube 21, a pull-wire displacement sensor 22, a bracket 23, a reset spring 24, a fixed sleeve 25, a double-grooved belt 26, a rolling bearing seat 27, a hexagonal tube 28 and a sensing feeler rod 29; the avoidance component 3 includes a fixed tube limiting steel rod 31, a double-headed fisheye bearing 32, an inner sleeve limiting steel rod 33, an inner sleeve 34, a servo electric cylinder 35, a fixing bolt 36, a fisheye bearing 37, an outer sleeve limiting steel rod 38 and an outer sleeve 39. Figure 3 、 Figure 4 and Figure 5 、 Figure 6 These are the structural diagrams of the sensing component and the avoidance component respectively.

[0021] As shown in the figure, the electric vineyard weeder is connected to the tractor via a three-point suspension mechanism on the frame 11. The fixed tube 12 is welded to the frame 11, and the depth-limiting pulley 13 is secured to the frame 11 via U-bolts. The square tube 21 is welded to the frame 11, the rolling bearing seat 27 is welded to the square tube 21, and the bracket 23 is welded to the square tube 21. The hexagonal tube 28 is connected to the inner ring of the rolling bearing seat 27 through a clearance fit, allowing it to rotate freely around the center. A double-groove pulley 26 is inserted into the hexagonal tube 28 and positioned above the rolling bearing seat 27. A fixed ferrule 25 is inserted into the hexagonal tube 28 and positioned above the double-groove pulley 26, limiting axial displacement of the double-groove pulley 26 and simultaneously limiting downward axial displacement of the hexagonal tube 28. A sensing rod 29 is welded to the end of the hexagonal tube 28. The wire-type displacement sensor 22 is fixed to the bracket 23 via a threaded connection at the bottom. The head of the wire is fixed in the first groove of the double-groove pulley 26. One end of the reset spring 24 is hung on the bracket 23, and the other end is fixed in the second groove of the double-groove pulley 26. The servo cylinder 35 is fixed in the inner sleeve 34 by a fixing bolt 36. The base of the inner sleeve 34 has a pair of holes. The inner sleeve limiting steel rod 33 has the same outer diameter as the inner sleeve 34 and is fixed in the hole at the base of the inner sleeve 34 through an interference fit. The base of the fixed tube 12 has a pair of holes. The fixed tube limiting steel rod 31 has the same outer diameter as the fixed tube 12 and is fixed in the hole at the base of the fixed tube 12 through an interference fit. The double-headed fisheye bearing 32 has one end sleeved on the fixed tube limiting steel rod 31 and the other end sleeved on the inner sleeve limiting steel rod 33, so that the inner sleeve 34 is fixed to the fixed tube 12. The outer sleeve 39 has a pair of holes. A steel rod 38, which has the same outer diameter as the outer sleeve 39, is secured within the holes via an interference fit. One end of the fisheye bearing 37 is threadedly connected to the top of the push rod of the servo cylinder 35. The bearing at one end fits over the steel rod 38, securing the outer sleeve 39 to the push rod of the servo cylinder 35. The weeding tool 4 is threadedly secured to the end of the outer sleeve 39.

[0022] As shown in the figure, the electric inter-row weeder for vineyards is fixedly connected to the tractor via a three-point suspension mechanism on a frame 11 and always moves along the direction of travel of the tractor. The weeding cutter 4 penetrates the soil and weeds along the direction of travel of the tractor.

[0023] As shown in the figure, in the electric weeder for vineyards, when the sensing rod 29 touches the grape plants during the movement of the tractor, it drives the hexagonal tube 28 and the double-groove pulley 26 to rotate around the center of the wheel. The double-groove pulley 26 drives the wire of the pull-wire displacement sensor 22 to extend, and at the same time drives the reset spring 24 to stretch.

[0024] As shown in the figure, in the electric inter-row weeder for vineyards, the wire displacement sensor 22 can measure the distance the wire is extended. When the distance exceeds a certain value, the push rod of the servo electric cylinder 35 contracts, driving the outer sleeve 39 to contract, and then driving the weeding tool 4 to contract to avoid the grape plants.

[0025] As shown in the figure, when the sensing rod 29 bypasses the grape plants as the tractor continues to move, the reset spring 24 drives the double-groove pulley 26 to reset under the action of the spring force, thereby driving the pull wire of the pull wire displacement sensor 22 and the sensing rod 29 to reset.

[0026] As shown in the figure, in the electric weeder for vineyards, when the wire of the wire displacement sensor 22 is reset, the push rod of the servo electric cylinder 35 extends, driving the outer sleeve 39 to extend, and then driving the weeding cutter 4 to extend to continue the weeding operation.

Claims

1. A vineyard electric weeder, characterized in that: The weeder is divided into four parts: a support component (1), a sensing component (2), an avoidance component (3), and a weeding tool (4); the support component (1) includes a frame (11), a fixed tube (12), and a depth-limiting wheel (13); the sensing component (2) includes a square tube (21), a wire-type displacement sensor (22), a bracket (23), a reset spring (24), a fixed sleeve (25), a double-groove pulley (26), a rolling bearing seat (27), a hexagonal tube (28), and a sensing touch rod (29); the avoidance component (3) includes a fixed tube limiting steel rod (31), a double-headed fisheye bearing (32), an inner sleeve limiting steel rod (33), an inner sleeve (34), a servo electric cylinder (35), a fixing bolt (36), a fisheye bearing (37), an outer sleeve, and a plurality of other components. The weeder is connected to the tractor through a three-point suspension mechanism on the frame (11), the fixed pipe (12) is fixed to the frame (11) by welding, and a set of depth limiting wheels (13) is fixed to the frame (11) by two pairs of U-bolts; the square tube (21) is fixed to the frame (11) by welding, the rolling bearing seat (27) is fixed to the square tube (21) by welding, the bracket (23) is fixed to the square tube (21) by welding, the hexagonal tube (28) and the inner ring of the bearing in the rolling bearing seat (27) are connected by clearance fit, the double-groove pulley (26) is sleeved in the hexagonal tube (28) and located above the rolling bearing seat (27), and the fixed sleeve (25) is sleeved in the hexagonal tube (28). , located above the double-groove pulley (26), the sensing touch rod (29) is fixed to the end of the hexagonal tube (28) by welding, the wire-type displacement sensor (22) is fixed to the bracket (23) through the bottom thread connection, and its wire head is fixed in the first groove of the double-groove pulley (26), one end of the reset spring (24) is hung on the bracket (23), and the other end is fixed in the second groove of the double-groove pulley (26); the servo electric cylinder (35) is fixed in the inner sleeve (34) by the fixing bolt (36), the root of the inner sleeve (34) has a pair of holes, the inner sleeve limit steel rod (33) has the same length as the outer diameter of the inner sleeve (34), and is fixed in the hole at the root of the inner sleeve (34) by interference connection, the root of the fixed tube (12) has a pair of holes, fixed The fixed tube limiting steel rod (31) has an outer diameter equal to that of the fixed tube (12) and is fixed in the hole at the root of the fixed tube (12) by interference connection. One end of the double-headed fisheye bearing (32) is sleeved on the fixed tube limiting steel rod (31) and the other end is sleeved on the inner sleeve limiting steel rod (33), so that the inner sleeve (34) is fixedly connected to the fixed tube (12). A pair of holes are opened on the outer sleeve (39). The outer sleeve limiting steel rod (38) has an outer diameter equal to that of the outer sleeve (39) and is fixed in the hole on the outer sleeve (39) by interference connection. One end of the fisheye bearing (37) is fixedly connected to the top of the push rod of the servo electric cylinder (35) by threaded connection. The bearing at one end is sleeved on the outer sleeve limiting steel rod (38), so that the outer sleeve (39) is fixedly connected to the push rod of the servo electric cylinder (35);The weeding tool (4) is fixed to the end of the outer sleeve (39) by a threaded connection.

2. The electric weeder for vineyards according to claim 1, characterized in that: The weeder is fixedly connected to the tractor via a three-point suspension mechanism on a frame (11), and always moves along the direction of travel of the tractor. The weeding cutter (4) penetrates the soil and weeds along the direction of travel of the tractor.

3. The electric weeder for vineyards according to claim 1, characterized in that: When the tractor is moving, when the sensing rod (29) touches the grape plant, it drives the hexagonal tube (28) and the double-groove pulley (26) to rotate around the center of the wheel, and the double-groove pulley (26) drives the wire of the wire-type displacement sensor (22) to extend, and at the same time drives the reset spring (24) to stretch.

4. The electric weeder for vineyards according to claim 3, characterized in that: When the wire distance of the wire displacement sensor (22) exceeds a certain value, the push rod of the servo electric cylinder (35) contracts, driving the outer sleeve (39) to contract, and then driving the weeding tool (4) to contract to avoid the grape plants.

5. The electric weeder for vineyards according to claim 4, characterized in that: When the sensing rod (29) bypasses the grape plant as the tractor continues to move, the reset spring (24) drives the double-groove pulley (26) to reset under the action of the spring force, thereby driving the pull wire of the pull wire displacement sensor (22) and the sensing rod (29) to reset.

6. The electric weeder for vineyards according to claim 5, characterized in that: When the wire of the wire displacement sensor (22) is reset, the push rod of the servo electric cylinder (35) extends, driving the outer sleeve (39) to extend, and further driving the weeding cutter (4) to extend to continue the weeding operation.

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