Straw harvesting device

Abstract

The utility model discloses a kind of straw harvesting device, belong to agricultural equipment technical field.It can greatly reduce the labor intensity of operator, improve the efficiency of harvesting operation.It mainly includes: frame, it includes support beam and two side support columns;Front wheel, it is installed in the front end of support beam;First support plate, it is horizontally connected in the lower part of two support columns;Rotary shaft, it is rotatably supported on the first support plate;Inclined plate, it is fixedly connected in the upper end of rotary shaft;Cutter fixed component, it is arranged on the inclined plate;Angle locking mechanism;Rear wheel assembly, it is installed below the first support plate;Push rod, it is connected in the rear of the frame and extend backward.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural equipment technology, and more specifically, it relates to a straw harvesting device. Background Technology

[0002] After crops such as corn, sesame, chili peppers, and soybeans are harvested, the remaining hard stalks usually need to be cut off.

[0003] Currently, in the harvesting of hard straw from the aforementioned crops, especially in small-scale planting areas, hilly terrain, or fields inaccessible to large machinery, there are two main methods: 1. Traditional manual harvesting: Workers hold sickles and rely entirely on physical strength to bend over and cut the straw. This method is extremely labor-intensive, inefficient, and prone to causing back strain, and the stubble is uneven. 2. Using portable power mowers: Operators carry the gasoline engine on their backs or hold the mower by hand. Although cutting efficiency is improved, the heavy power unit still needs to be carried or held by hand throughout the operation, which can easily lead to fatigue in the arms and back during prolonged use. Furthermore, handheld operation makes it difficult to precisely and stably control the cutting height and angle, especially when dealing with rows and dense hard straw. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a straw harvesting device that can be easily adapted to and fixed to common handheld mowers on the market, transforming them into a standing straw harvesting device that can be easily pushed by manpower and has a flexible adjustable cutting height, thereby greatly reducing the labor intensity of the operator and improving the efficiency of the harvesting operation.

[0005] This utility model is achieved by the following technical solution: a straw harvesting device, comprising: The frame includes a support beam extending in a front-rear direction and two side support columns connected to the rear end of the support beam and extending downward. The front wheel is mounted on the front end of the support beam; The first support plate is horizontally connected to the lower part of the two support columns; A rotating shaft, which runs vertically through and is rotatably supported on the first support plate; An inclined plate is fixedly connected to the upper end of the rotating shaft and is inclined relative to the horizontal plane; A tool fixing component is disposed on the inclined plate; An angle locking mechanism includes a limiting plate fixedly connected to the rotating shaft and a plurality of lower limiting holes formed on the first support plate; an upper limiting hole is formed on the top surface of the limiting plate; the plurality of lower limiting holes are arranged at intervals around the center of the rotating shaft in a circumferential direction; by simultaneously inserting a limiting pin into the upper limiting hole and any of the lower limiting holes, the rotating shaft is prevented from rotating, thereby locking the inclined plate at the corresponding angle; The rear wheel assembly is mounted below the first support plate; A push rod is attached to the rear of the frame and extends rearward.

[0006] Furthermore, the support beam includes symmetrically arranged curved rods on the left and right sides, with the rear end of the curved rods being higher than the front end, and the front wheel being rotatably mounted between the front ends of the two curved rods.

[0007] Furthermore, a second support plate is provided above the first support plate; the rotating shaft passes through the first support plate and the second support plate in sequence, and a first bearing is provided between the rotating shaft and the first support plate, and a second bearing is provided between the rotating shaft and the second support plate.

[0008] Furthermore, the tool fixing component includes pipe clamps respectively disposed on the front and rear sides of the inclined plate, and each pipe clamp is provided with a support plate on its left and right sides. The support plate is provided with an upper fixing hole, and the front and rear sides of the top surface of the inclined plate are respectively provided with lower fixing holes; the bolt passes through the corresponding upper fixing hole and the lower fixing hole and is locked by a nut.

[0009] Furthermore, the rear wheel assembly includes a wheel mounting rod connected to the lower side of the first support plate and a rear wheel mounted on the wheel mounting rod.

[0010] Furthermore, the wheel mounting rods are two symmetrically arranged on the left and right, and the rear wheel is rotatably mounted between the lower parts of the wheel mounting rods on both sides.

[0011] Furthermore, foot supports are respectively installed at the lower ends of the two wheel mounting rods.

[0012] Furthermore, a grip is installed at the rear end of the push rod, and the grip is perpendicular to the push rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model integrates a handheld lawnmower that needs to be carried by hand or on the back onto the frame of this utility model. When in use, the operator only needs to push it easily, which effectively reduces the heavy load of the current handheld lawnmower, thereby reducing labor intensity and enabling continuous and fast row harvesting, thus improving harvesting efficiency.

[0014] 2. The inclined plate and the handheld lawnmower fixed thereon described in this utility model can rotate around the rotation axis as a whole. The inclined plate can be locked at different angles by the angle locking mechanism, and the distance of the blades on the handheld lawnmower extending laterally to the side of the frame can be adjusted, so that this utility model can adapt well to different crop row spacings and different types of straw.

[0015] 3. The blade fixing component described in this utility model allows the drive rod of the handheld lawnmower to be adjusted forward and backward along the inclined direction of the ramp. Since the ramp is inclined, the forward and backward change of the fixing position will directly translate into a change in the height of the handheld lawnmower blade from the ground, which makes it easy to adjust the blade of the handheld lawnmower to the ideal working height.

[0016] 4. This utility model is compatible with handheld lawnmowers that are widely available on the market and that users may already own, eliminating the need to purchase a dedicated and expensive cutting power assembly, thus significantly reducing the user's purchase cost. Moreover, this utility model itself has a simple structure and is easy to manufacture and maintain.

[0017] 5. When using this utility model, the operator always maintains a natural standing posture with a straight back, avoiding prolonged bending over and improving work comfort.

[0018] 6. This utility model can adapt to complex terrain, and its lightweight frame makes it very suitable for areas where large machinery cannot enter, such as small plots of land, mountains, and terraced fields. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a perspective view of the present invention; Figure 3 yes Figure 2 A magnified view of a section at point I; Figure 4 This is a diagram showing the usage state of this utility model.

[0020] In the diagram: 1. Frame; 2. Support beam; 3. Support column; 4. Front wheel; 5. First support plate; 6. Rotating shaft; 7. Inclined plate; 8. Limiting plate; 9. Lower limit hole; 10. Handle bar; 11. Limiting pin; 12. Push rod; 13. Bending rod; 14. Second support plate; 15. Pipe clamp; 16. Support plate; 17. Wheel mounting rod; 18. Rear wheel; 19. Foot support. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort should fall within the scope of protection of this utility model.

[0022] A straw harvesting device includes a frame 1, which is the rigid foundation of this utility model and is made of welded metal profiles.

[0023] The frame 1 includes a support beam 2, which is composed of two symmetrically arranged bent rods 13, made of round steel tubes or square tubes. The front section of each bent rod 13 is used to mount the front wheel 4, and the front section is inclined upward, so that the rear end of the bent rod 13 is significantly higher than the front end, with a rounded transition between the front and rear sections. The two bent rods 13 are welded and fixed together by at least two transverse connecting tubes to form a stable support beam 2 structure, wherein a transverse connecting tube is provided at the rear end between the two bent rods 13.

[0024] The frame 1 also includes two side support columns 3. The two support columns 3 are vertically arranged square or round tubes, and their upper ends are vertically welded and fixed to the transverse connecting tube between the rear ends of the two bent rods 13, or directly welded and fixed to the two bent rods 13. At the lower part of the two support columns 3, a steel plate is welded as a first support plate 5, and the first support plate 5 is kept horizontal.

[0025] This utility model also includes a front wheel 4 and a rear wheel assembly. The front wheel 4 is rotatably mounted between the front ends of the two curved rods 13 on both sides. The rear wheel assembly is mounted below the first support plate 5 and includes two wheel mounting rods 17 (which can be round steel tubes or square tubes), the upper ends of which are welded to the left and right sides of the lower surface of the first support plate 5. The rear wheel 18 is rotatably mounted between the lower parts of the two wheel mounting rods 17 on both sides. A retractable kickstand 19 is mounted at the lower end of each wheel mounting rod 17. The kickstand 19 can adopt a retractable kickstand 19 structure known in the art for bicycles. The following describes a retractable support leg 19 structure. The support leg 19 includes a base, which is fixed to the lower part of the wheel mounting rod 17 by bolts or welding. A support leg is rotatably mounted on the base via a pivot. A rotating groove is provided inside the base for the support leg to rotate. When the support leg rotates within the groove, it contacts the inner wall of the groove, and the inner wall provides a certain amount of rotational friction. This friction allows the support leg to maintain its position at any angle, preventing it from wobbling. When the support leg 19 is lowered, its supporting end contacts the ground, thus forming a stable three-point support system with the rear wheel 18, allowing the entire device to remain upright when parked. When movement is required, the support leg 19 can be retracted.

[0026] This utility model also includes push rods 12, which are two parallel and symmetrically arranged metal tubes. Their front ends are fixed by welding to the rear ends of two bent rods 13 or to a transverse connecting tube between the two bent rods 13. The two push rods 12 extend backward and upward and are connected to a horizontal grip rod 10 at their ends. The grip rod 10 is set perpendicular to the push rods 12, which facilitates the operator to hold and push with both hands.

[0027] The present invention also includes a second support plate 14, which is provided above the first support plate 5, and the second support rod is welded and fixed to the two support columns 3.

[0028] This utility model also includes a rotating shaft 6, which passes sequentially through the first support plate 5 and the second support plate 14. A first bearing is provided between the rotating shaft 6 and the first support plate 5, and a second bearing is provided between the rotating shaft 6 and the second support plate 14. A hole is opened in the middle of the first support plate 5, and a first bearing seat is fixedly installed by bolts or other means. The first bearing is installed in the first bearing seat, and the rotating shaft 6 passes through the inner ring of the first bearing. A hole is opened in the middle of the second support plate 14, and a second bearing seat is fixedly installed by bolts or other means. The second bearing is installed in the second bearing seat, and the rotating shaft 6 passes through the inner ring of the second bearing. Retaining rings can be installed on the upper side of the inner ring of the first bearing and the lower side of the inner ring of the second bearing, respectively.

[0029] This utility model also includes an inclined plate 7, which is a rectangular steel plate. Its bottom center is welded and fixedly connected to the top of the rotating shaft 6. The plate surface of the inclined plate 7 forms a fixed angle (e.g., 30 to 45 degrees) with the horizontal plane.

[0030] This utility model also includes an angle locking mechanism, which includes a limiting plate 8 fixedly connected to the rotating shaft 6 and a plurality of lower limiting holes 9 opened on the first support plate 5; an upper limiting hole is opened on the top surface of the limiting plate 8; the plurality of lower limiting holes 9 are arranged at intervals around the center of the rotating shaft 6 in the circumferential direction; by simultaneously inserting the limiting pin 11 into the upper limiting hole and any of the lower limiting holes 9, the rotating shaft 6 is prevented from rotating, thereby locking the inclined plate 7 at the corresponding angle.

[0031] The limiting plate 8 is fixedly connected to the rotating shaft 6 by welding, and the limiting plate 8 is set horizontally. On the top surface of the first support plate 5, with the center of the rotating shaft 6 as the center, a plurality of lower limiting holes 9 are machined at equal or unequal intervals along the circumference of a certain radius.

[0032] When adjusting the working angle (i.e., adjusting the lateral extension of the handheld lawnmower blades), first pull out the limit pin 11. The operator then rotates the limit plate 8 or the handheld lawnmower fixed to the ramp 7. At this time, the rotating shaft 6, ramp 7, limit plate 8, and the blades on ramp 7 rotate simultaneously. When the position of the blades on the ramp meets the row spacing requirements, stop rotating. At this point, the upper limit hole on the limit plate 8 will align with one of the lower limit holes 9 on the first support plate 5. Insert the limit pin 11 into this aligned hole. Due to the limiting effect of the limit pin 11, the relative rotation between the rotating shaft 6 and the first support plate 5 is mechanically prevented, and the angle is firmly locked.

[0033] The blade fixing component described in this utility model is used to fix the cutting blade on the inclined plate 7. The cutting blade can be a handheld lawnmower. A handheld lawnmower usually consists of a power unit, a transmission rod and a cutting head. The power unit is mostly a gasoline engine or an electric motor, which is connected to the cutting head through a long transmission rod. The cutting head is equipped with blades.

[0034] The tool fixing component includes two pipe clamps 15, which are disposed on the top surface of the inclined plate 7 and distributed on both sides of the long side (i.e., the inclined direction) of the inclined plate 7. The pipe clamps 15 are standard parts, and their inner diameter can be selected according to the diameter of the transmission rod of a common handheld lawnmower. Each pipe clamp 15 is connected to a support plate 16 on its left and right sides, and the support plate 16 has an upper fixing hole.

[0035] On the top surface of the inclined plate 7, at positions corresponding to the front and rear pairs of support plates 16, a lower fixing hole is opened in each position, that is, four lower fixing holes are opened on the inclined plate 7.

[0036] During installation, first place the drive rod of the handheld lawnmower on the top surface of the ramp 7, positioning it between the lower fixing holes on both sides. Then, install the two pipe clamps 15 in sequence, ensuring the drive rod is within the arc-shaped groove of the pipe clamp 15. Next, align the support plates 16 on both sides of the pipe clamp 15 with the lower fixing holes on both sides. Finally, pass the bolts through the upper and lower fixing holes in sequence and tighten them. The drive rod of the handheld lawnmower is then securely fixed to the ramp 7 using the pipe clamps 15 on both sides.

[0037] When you need to adjust the height of the handheld lawnmower blades, simply loosen the nut on the clamp 15, move the handheld lawnmower up and down along the inclination of the ramp 7, and finally tighten the nut.

Claims

1. A straw harvesting device, characterized in that, include: The frame (1) includes a support beam (2) extending in the front-rear direction and two side support columns (3) connected to the rear end of the support beam (2) and extending downward. The front wheel (4) is mounted on the front end of the support beam (2); The first support plate (5) is horizontally connected to the lower part of the two support columns (3); A rotating shaft (6) is vertically inserted and rotatably supported on the first support plate (5); Inclined plate (7), which is fixedly connected to the upper end of the rotating shaft (6) and is inclined relative to the horizontal plane; A tool fixing component is disposed on the inclined plate (7); Angle locking mechanism includes a limiting plate (8) fixedly connected to the rotating shaft (6) and a plurality of lower limiting holes (9) opened on the first support plate (5); an upper limiting hole is opened on the top surface of the limiting plate (8); the plurality of lower limiting holes (9) are arranged at intervals around the center of the rotating shaft (6) in the circumferential direction; by simultaneously inserting the limiting pin (11) into the upper limiting hole and any of the lower limiting holes (9), the rotating shaft (6) is prevented from rotating, thereby locking the inclined plate (7) at the corresponding angle; The rear wheel assembly is mounted below the first support plate (5); Push rod (12), which is connected to the rear of the frame (1) and extends rearward.

2. The straw harvesting device according to claim 1, characterized in that, The support beam (2) includes symmetrically arranged curved rods (13) on the left and right sides. The height of the rear end of the curved rod (13) is higher than the height of the front end. The front wheel (4) is rotatably installed between the front ends of the curved rods (13) on both sides.

3. The straw harvesting device according to claim 1, characterized in that, A second support plate (14) is provided above the first support plate (5); the rotating shaft (6) passes through the first support plate (5) and the second support plate (14) in sequence, and a first bearing is provided between the rotating shaft (6) and the first support plate (5), and a second bearing is provided between the rotating shaft (6) and the second support plate (14).

4. The straw harvesting device according to claim 1, characterized in that, The tool fixing component includes pipe clamps (15) respectively set on the front and rear sides of the inclined plate (7). Each pipe clamp (15) has a support plate (16) on its left and right sides respectively. The support plate (16) has an upper fixing hole. The front and rear sides of the top surface of the inclined plate (7) have corresponding lower fixing holes. The bolt passes through the corresponding upper fixing hole and the lower fixing hole and is locked by a nut.

5. The straw harvesting device according to claim 1, characterized in that, The rear wheel assembly includes a wheel mounting rod (17) connected to the lower side of the first support plate (5) and a rear wheel (18) mounted on the wheel mounting rod (17).

6. The straw harvesting device according to claim 5, characterized in that, The wheel mounting rods (17) are two symmetrically arranged on the left and right sides, and the rear wheel (18) is rotatably mounted between the lower parts of the wheel mounting rods (17) on both sides.

7. The straw harvesting device according to claim 6, characterized in that, Foot braces (19) are respectively installed at the lower ends of the two wheel mounting rods (17).

8. The straw harvesting device according to claim 1, characterized in that, A grip (10) is installed at the rear end of the push rod (12), and the grip (10) is perpendicular to the push rod (12).

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