Rice straw picking and bundling machine

Abstract

The utility model provides a rice straw picking and bundling machine which comprises a machine frame, a picking mechanism, a pulling mechanism, a bundling mechanism and a straw bale pulling-out mechanism are sequentially arranged on the machine frame from front to back, a transmission box is arranged on one side of the machine frame, and the picking mechanism, the pulling mechanism, the bundling mechanism and the straw bale pulling-out mechanism are respectively in transmission connection with the transmission box. A torsion spring support is fixed to one side of the machine frame, a torsion spring is installed on the torsion spring support, one end of the torsion spring is provided with a rope guide ring used for enabling a bundling rope to penetrate through, and the torsion spring is pressed to deform in the process that the rope guide needle moves towards the knotter. The torsion spring is arranged on one side of the machine frame, in the process that the bundling rope penetrates through the rope guide ring at one end of the torsion spring and the rope guide needle to move towards the knotter, the torsion spring is pressed to deform, after one-time bundling is completed, the rope guide needle returns, at the moment, the torsion spring restores to tighten the loosened bundling rope, and winding of the bundling rope and straw is avoided.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically a rice straw picking and baling machine. Background Technology

[0002] Rice straw baling machines are mainly used in the straw processing stage after rice harvest. They are suitable for picking up and baling whole rice stalks in the field after harvest. The baled straw can be used as feed, biomass energy (such as straw power generation and biogas production), papermaking raw material, or fertilizer, thus contributing to the circular economy of agriculture.

[0003] The machine works in conjunction with a wheeled tractor, with a three-point suspension connection. The picking mechanism picks up the whole stalks of harvested straw, which are then fed into the front of the knotter via a feeding mechanism. When a certain amount of straw has accumulated, the knotter is activated to bale a certain amount of straw. As the bale is completed, the linked bale feeding mechanism pushes the bale of straw to the rear of the machine, and finally it is removed from the field.

[0004] The existing rice straw picking and baling machines have the following technical problems: 1. The knotting main shaft of the existing straw picking and baling machine uses a stop block, which has a poor stopping effect and serious rebound, affecting the knotting effect; 2. After the knotter completes the knotting, the rope needle returns to its position, and the rope is in a slack state, which is easy to get tangled with the straw, which is not conducive to the next knotting; 3. The front side of the picking roller of the existing straw picking and baling machine adopts a round tube frame-type grass blocking structure, which is easy to get tangled with straw and has a poor grass blocking effect.

[0005] Therefore, it is necessary to design a rice straw picking and baling machine to solve the above-mentioned technical problems. Utility Model Content

[0006] In order to solve the problems existing in the prior art, this utility model provides a rice straw picking and baling machine.

[0007] To achieve the above objectives, this utility model employs the following technical solution:

[0008] A rice straw picking and baling machine includes a frame on which a picking mechanism, a picking mechanism, a baling mechanism, and a bale ejection mechanism are arranged sequentially from front to back. A transmission box is provided on one side of the frame, and the picking mechanism, picking mechanism, baling mechanism, and bale ejection mechanism are respectively connected to the transmission box for transmission. The baling mechanism includes a knotter spindle, a knotter, a rope guide needle, and a baling rope. A torsion spring support is fixed on one side of the frame, and a torsion spring is installed on the torsion spring support. One end of the torsion spring is provided with a rope guide loop for the baling rope to pass through. As the rope guide needle moves toward the knotter, the torsion spring is compressed and deformed.

[0009] Preferably, a stop disc is fixed on the main shaft of the knotter, and a friction plate seat is fixed on the frame. The friction plate seat is U-shaped, and friction plates are symmetrically arranged on the inner side of the friction plate seat. A screw is provided on the friction plate seat, which moves through the friction plate seat along the thickness direction of the stop disc. A first compression spring is sleeved on the screw, and a nut is connected to the screw. The two ends of the first compression spring abut against the nut and the friction plate seat, respectively, and the stop disc contacts the two friction plates.

[0010] Preferably, the picking mechanism includes a spring-tooth picking roller, a front baffle plate, and straw guide comb teeth. The spring-tooth picking roller is rotatably connected to the frame and is also connected to the transmission box. The front baffle plate is located in front of the spring-tooth picking roller and is connected to the frame. The straw guide comb teeth are located above the spring-tooth picking roller, and one end of the straw guide comb teeth is fixed to the front baffle plate.

[0011] Preferably, the picking mechanism includes a grass-picking fork, a crank shaft, a first pull rod, and a second pull rod. The crank shaft is connected to the frame and is also connected to the transmission box. The grass-picking fork is mounted on the crank shaft and is rotatably sleeved with the crank shaft. One end of the first pull rod is fixedly connected to the grass-picking fork, and the other end is hinged to the second pull rod. The end of the second pull rod away from the first pull rod is hinged to the frame.

[0012] Preferably, the frame is provided with a grass support plate and a grass pressing plate. The grass pressing plate is an arc-shaped plate located above the grass support plate. The grass pressing plate is provided with grass-pulling holes for the grass-pulling fork to pass through. The grass pressing plate is provided with a grass-blocking rod at its end. The grass-blocking rod is L-shaped, with one end hinged to the top of the grass pressing plate and connected to a first return spring. The other end of the grass-blocking rod is set downwards.

[0013] Preferably, the knotter and the knotter spindle are located above the straw pressing plate. The knotter is fixed to the frame via a hanging plate. The knotter is connected to the knotter spindle, and the knotter spindle is rotatably connected to the hanging plate. A rope-guiding needle shaft is provided below the straw support plate and is rotatably connected to the frame. The rope-guiding needle is fixedly connected to the rope-guiding needle shaft. An excitation rod shaft is also provided below the straw support plate and is rotatably connected to the frame. An excitation rod is provided on the excitation rod shaft. The straw support plate has through holes for the rope-guiding needle and the excitation rod to pass through.

[0014] One end of the knotter's main shaft extends into the transmission box and is connected to a striking rod mechanism. The striking rod mechanism includes a swing rod, a striking rod, a first connecting rod, and a second connecting rod. One end of the swing rod is fixed to the knotter's main shaft, and the other end is hinged to the first connecting rod. The first connecting rod is hinged to the second connecting rod, and the second connecting rod is fixed to the rope needle shaft. The middle part of the swing rod is hinged to the striking rod. A second compression spring is connected between the swing rod and the striking rod. A sprocket is rotatably connected to the knotter's main shaft. The sprocket has a protrusion, and the striking rod has a hook that cooperates with the protrusion. The hook can hook the protrusion.

[0015] One end of the excitation rod shaft extends into the transmission box and is connected to a U-shaped pull rod. The U-shaped pull rod is rotatably connected to a third pull rod, and the third pull rod is rotatably connected to a lifting rod. A lifting rod seat that cooperates with the lifting rod is fixed in the transmission box. A second return spring for the lifting rod to rise and reset is sleeved on the lifting rod. After the lifting rod is reset, its top end can abut against the impact rod.

[0016] Preferably, the bale extraction mechanism includes a crank assembly, a drive arm, and a bale extraction fork. The crank assembly is disposed above the bale extraction fork and is rotatably connected to the bale extraction fork. One end of the drive arm is rotatably connected to the bale extraction fork, and the other end is fixedly connected to the main shaft of the knotter.

[0017] Preferably, a tying rope box is provided on the frame above the torsion spring.

[0018] Preferably, the frame is provided with a rope guiding structure, the rope guiding structure includes a rope threading guide tube disposed below the grass support plate, one end of the rope threading guide tube is provided with a rope threading guide wheel, the rope threading guide wheel is disposed below the torsion spring, and a rope guide ring connecting plate is also fixed on the frame below the grass support plate, the end of the rope guide ring connecting plate is provided with a rope guide ring, the rope guide ring is located below the rope guiding needle.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. The rice straw picking and baling machine of this utility model has a torsion spring set on one side of the frame. The baling rope passes through the guide loop at one end of the torsion spring. During the movement of the guide needle toward the knotter, the torsion spring is compressed and deformed. After one baling is completed, the guide needle returns to its position. At this time, the torsion spring returns to its original position and tightens the loosened baling rope, so as to prevent the baling rope and straw from getting tangled.

[0021] 2. This utility model provides a stop disc on the main shaft of the knotter. After the screw and nut are pre-tightened, the two friction plates clamp the stop disc, preventing the main shaft of the knotter from springing back.

[0022] 3. In this utility model, the front side of the picking roller adopts a plate-type grass-blocking structure, which is not easy to entangle straw and has a good grass-blocking effect. Attached Figure Description

[0023] Figure 1 This is a first-view schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the overall structure of the present invention from a second perspective;

[0025] Figure 3 This is a partial structural schematic diagram from a first-view perspective of the present invention;

[0026] Figure 4 This is a partial structural schematic diagram from a second perspective of the present invention;

[0027] Figure 5 This is a partial structural schematic diagram from a third-view perspective of the present invention.

[0028] Explanation of reference numerals in the attached figures

[0029] 1-Frame, 2-Transmission box, 3-Knotter spindle, 4-Knotter, 5-Rope guide needle, 6-Torsion spring support, 7-Torsion spring, 8-Rope guide ring, 9-Stop plate, 10-Friction plate seat, 11-Friction plate, 12-Screw, 13-First compression spring, 14-Nut, 15-Spring tooth pickup roller, 16-Front side grass guard plate, 17-Straw guide comb teeth, 18-Grass fork, 19-Crankshaft, 20-First pull rod, 21-Second pull rod, 22-Grass support plate, 23-Grass pressing plate, 24-Grass guard bar, 25-First 26-Reset spring, 27-Hanging plate, 28-Rope needle shaft, 29-Actuation rod shaft, 30-Actuation rod, 31-Swing rod, 32-First connecting rod, 33-Second connecting rod, 34-Sprocket, 35-Protrusion, 36-Hook, 37-U-shaped pull rod, 38-Lifting rod, 39-Lifting rod seat, 40-Second reset spring, 41-Crank assembly, 42-Drive arm, 43-Handling fork, 44-Bundling rope box, 45-Rope threading guide, 46-Rope threading guide wheel, 47-Rope guide ring connecting plate, 48-Rope guide ring. Detailed Implementation

[0030] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0031] like Figures 1 to 5As shown, a rice straw picking and baling machine includes a frame 1. From front to back, a picking mechanism, a picking mechanism, a baling mechanism, and a bale ejection mechanism are sequentially arranged on the frame 1. A transmission box 2 is located on one side of the frame 1, and the picking mechanism, picking mechanism, baling mechanism, and bale ejection mechanism are respectively connected to the transmission box 2. The baling mechanism includes a knotter spindle 3, a knotter 4, a rope guide needle 5, and a baling rope. A torsion spring support 6 is fixed to one side of the frame 1, and a torsion spring 7 is installed on the torsion spring support 6. One end of the torsion spring 7 has a guide loop 8 for the baling rope to pass through. During the movement of the rope guide needle 5 toward the knotter 4, the torsion spring 7 is compressed and deformed.

[0032] Specifically, the picking mechanism includes a spring-tooth picking roller 15, a front side baffle plate 16, and straw guide comb teeth 17. The spring-tooth picking roller 15 is rotatably connected to the frame 1 and is also connected to the transmission box 2. The front side baffle plate 16 is located in front of the spring-tooth picking roller 15 and is connected to the frame 1. The straw guide comb teeth 17 are located above the spring-tooth picking roller 15, and one end of the straw guide comb teeth 17 is fixed to the front side baffle plate 16.

[0033] The picking mechanism includes a grass-picking fork 18, a crank shaft 19, a first pull rod 20, and a second pull rod 21. The crank shaft 19 is connected to the frame 1 and is also connected to the transmission box 2. The grass-picking fork 18 is mounted on the crank shaft 19 and is rotatably sleeved with the crank shaft 19. One end of the first pull rod 20 is fixedly connected to the grass-picking fork 18, and the other end is hinged to the second pull rod 21. The end of the second pull rod 21 away from the first pull rod 20 is hinged to the frame 1.

[0034] The frame 1 is provided with a grass support plate 22 and a grass pressing plate 23. The grass pressing plate 23 is an arc-shaped plate and is located above the grass support plate 22. The grass pressing plate 23 is provided with grass-pulling holes for the grass-pulling fork 18 to pass through. The grass pressing plate 23 is provided with a grass-blocking rod 24 at its end. The grass-blocking rod 24 is L-shaped, with one end hinged to the top of the grass pressing plate 23 and connected to a first return spring 25. The other end of the grass-blocking rod 24 is set downward.

[0035] The knotter 4 and the knotter spindle 3 are located above the straw pressing plate 23. The knotter 4 is fixed to the frame 1 via the hanging plate 26. The knotter 4 is connected to the knotter spindle 3. The knotter spindle 3 is rotatably connected to the hanging plate 26. A rope-guiding needle shaft 27 rotatably connected to the frame 1 is provided below the straw support plate 22. The rope-guiding needle 5 is fixedly connected to the rope-guiding needle shaft 27. An excitation rod shaft 28 rotatably connected to the frame 1 is also provided below the straw support plate 22. An excitation rod 29 is provided on the excitation rod shaft 28. The straw support plate 22 has through holes for the rope-guiding needle 5 and the excitation rod 29 to pass through.

[0036] One end of the knotter spindle 3 extends into the transmission box 2 and is connected to a striking rod 31 mechanism. The striking rod 31 mechanism includes a swing rod 30, a striking rod 31, a first connecting rod 32, and a second connecting rod 33. One end of the swing rod 30 is fixed to the knotter spindle 3, and the other end is hinged to the first connecting rod 32. The first connecting rod 32 is hinged to the second connecting rod 33, and the second connecting rod 33 is fixed to the rope needle shaft 27. The middle part of the swing rod 30 is hinged to the striking rod 31. A second compression spring (not shown in the figure) is connected between the swing rod 30 and the striking rod 31. A sprocket 34 is rotatably connected to the knotter spindle 3. The sprocket 34 is provided with a protrusion 35. The striking rod 31 is provided with a hook 36 that cooperates with the protrusion 35. The hook 36 can hook the protrusion 35.

[0037] One end of the excitation rod shaft 28 extends into the transmission box 2 and is connected to a U-shaped pull rod 37. The U-shaped pull rod is rotatably connected to a third pull rod (not shown in the figure), and the third pull rod is rotatably connected to a lifting rod 38. A lifting rod seat 39 that cooperates with the lifting rod 38 is fixed in the transmission box 2. A second return spring 40 for the lifting rod 38 to rise and reset is sleeved on the lifting rod 38. After the lifting rod 38 is reset, its top end can abut against the impact rod 31.

[0038] The bale extraction mechanism includes a crank assembly 41, a drive arm 42, and a bale extraction fork 43. The crank assembly 41 is located above the bale extraction fork 43 and is rotatably connected to the bale extraction fork 43. One end of the drive arm 42 is rotatably connected to the bale extraction fork 43, and the other end is fixedly connected to the knotter spindle 3.

[0039] A tying rope box 44 is provided on the frame 1 above the torsion spring 7.

[0040] The rice straw baling machine in this embodiment operates on the same principle as existing rice straw baling machines. Both use a picking mechanism to collect whole harvested straw stalks, which are then fed to the front of the knotter via a feeding mechanism. Once a certain amount of straw has accumulated, the knotter is activated, baling the straw. Simultaneously, a linked bale-pulling mechanism moves the bale to the rear of the machine for removal from the field. The picking mechanism, feeding mechanism, baling mechanism, bale-pulling mechanism, and transmission box in this embodiment are all existing technologies. Therefore, they will not be described in detail here. It is worth noting that in existing technologies, one end of the excitation rod shaft 28 uses a gear to drive a meshing rack downwards to release the limiting position of the collision rod 31. In this embodiment, however, one end of the excitation rod shaft 28 uses a U-shaped pull rod 37 and a third pull rod to drive the lifting rod 38 downwards to release the limiting position of the collision rod 31. Compared to the gear and rack method, this improves triggering timeliness and reduces the failure rate. Furthermore, in existing technologies, the front side of the pickup roller uses a cylindrical frame-type weed-blocking structure, which is prone to tangling with straw and has a poor weed-blocking effect. In contrast, this embodiment uses a plate-type weed-blocking structure, which is less prone to straw tangling and has a better weed-blocking effect.

[0041] In this embodiment, the rice straw picking and baling machine has a torsion spring 7 installed on one side of the frame 1. The baling rope passes through the guide loop 8 at one end of the torsion spring 7. As the rope needle 5 moves toward the knotter 4, the torsion spring 7 is compressed and deformed. After one baling is completed, the rope needle 5 returns to its original position. At this time, the torsion spring 7 returns to its original position and tightens the slack baling rope, thus preventing the baling rope and straw from getting tangled.

[0042] In some embodiments, the frame 1 is provided with a rope guiding structure to guide the baling rope. The rope guiding structure includes a rope threading guide 45 disposed below the straw support plate 22, one end of the rope threading guide 45 is provided with a rope threading guide wheel 46, the rope threading guide wheel 46 is disposed below the torsion spring 7, and a rope guide ring connecting plate 47 is also fixed on the frame 1 below the straw support plate 22, the end of the rope guide ring connecting plate 47 is provided with a rope guide ring 48, the rope guide ring 48 is located below the rope guiding needle 5.

[0043] Furthermore, a stop disc 9 is fixed on the main shaft 3 of the knotter, and a friction plate seat 10 is fixed on the frame 1. The friction plate seat 10 is U-shaped, and friction plates 11 are symmetrically arranged on the inner side of the friction plate seat 10. A screw 12 is provided on the friction plate seat 10, which moves through the friction plate seat 10 along the thickness direction of the stop disc 9. A first compression spring 13 is sleeved on the screw 12, and a nut 14 is connected to the screw 12. The two ends of the first compression spring 13 abut against the nut 14 and the friction plate seat 10, respectively. The stop disc 9 contacts the two friction plates 11. By setting the stop disc 9 on the main shaft 3 of the knotter, after the screw 12 and the nut 14 are pre-tightened, the two friction plates 11 clamp the stop disc 9, preventing the main shaft 3 of the knotter from springing back.

Claims

1. A rice straw picking and baling machine, comprising a frame (1), wherein a picking mechanism, a picking mechanism, a baling mechanism and a bale pulling mechanism are arranged sequentially from front to back on the frame (1), and a transmission box (2) is provided on one side of the frame, wherein the picking mechanism, the picking mechanism, the baling mechanism and the bale pulling mechanism are respectively connected to the transmission box for transmission; the baling mechanism comprises a knotter spindle (3), a knotter (4), a rope needle (5) and a baling rope; characterized in that, A torsion spring support (6) is fixed on one side of the frame (1), and a torsion spring (7) is installed on the torsion spring support (6). One end of the torsion spring (7) is provided with a guide loop (8) for the bundling rope to pass through. During the movement of the guide needle (5) toward the knotter (4), the torsion spring (7) is deformed by pressure.

2. The rice straw picking and baling machine according to claim 1, characterized in that: A stop plate (9) is fixed on the main shaft (3) of the knotter, and a friction plate seat (10) is fixed on the frame. The friction plate seat (10) is U-shaped. Friction plates (11) are symmetrically arranged on the inner side of the friction plate seat (10). A screw (12) is provided on the friction plate seat (10) and moves through the friction plate seat (10) along the thickness direction of the stop plate (9). A first compression spring (13) is sleeved on the screw (12). A nut (14) is connected to the screw (12). The two ends of the first compression spring (13) abut against the nut (14) and the friction plate seat (10) respectively. The stop plate (9) contacts the two friction plates (11) respectively.

3. The rice straw picking and baling machine according to claim 1, characterized in that: The picking mechanism includes a toothed picking roller (15), a front grass-blocking plate (16), and straw guide comb teeth (17). The toothed picking roller (15) is rotatably connected to the frame (1) and is also connected to the transmission box (2). The front grass-blocking plate (16) is located in front of the toothed picking roller (15) and is connected to the frame (1). The straw guide comb teeth (17) are located above the toothed picking roller (15), and one end of the straw guide comb teeth (17) is fixed to the front grass-blocking plate (16).

4. The rice straw picking and baling machine according to claim 1, characterized in that: The picking mechanism includes a grass-picking fork (18), a crank shaft (19), a first pull rod (20), and a second pull rod (21). The crank shaft (19) is connected to the frame (1) and is connected to the transmission box. The grass-picking fork (18) is mounted on the crank shaft (19) and rotates in connection with the crank shaft (19). One end of the first pull rod (20) is fixedly connected to the grass-picking fork (18), and the other end is hinged to the second pull rod (21). The end of the second pull rod (21) away from the first pull rod (20) is hinged to the frame (1).

5. A rice straw picking and baling machine according to claim 4, characterized in that: The frame is provided with a grass support plate (22) and a grass pressing plate (23). The grass pressing plate (23) is an arc-shaped plate located above the grass support plate (22). The grass pressing plate (23) is provided with grass-pulling holes for the grass-pulling fork (18) to pass through. The grass pressing plate (23) is provided with a grass-blocking rod (24) at the end. The grass-blocking rod (24) is L-shaped, with one end hinged to the top of the grass pressing plate (23) and connected to a first return spring (25). The other end of the grass-blocking rod (24) is set downwards.

6. A rice straw picking and baling machine according to claim 5, characterized in that: The knotter (4) and the knotter spindle (3) are located above the grass pressing plate (23). The knotter (4) is fixed to the frame (1) via the hanging plate (26). The knotter (4) is connected to the knotter spindle (3). The knotter spindle (3) is rotatably connected to the hanging plate (26). The grass support plate (22) is provided with a rope guide needle shaft (27) rotatably connected to the frame (1) below it. The rope guide needle (5) is fixedly connected to the rope guide needle shaft (27). The grass support plate (22) is also provided with an excitation rod shaft (28) rotatably connected to the frame (1) below it. An excitation rod (29) is provided on the excitation rod shaft (28). The grass support plate (22) is provided with a through hole for the rope guide needle and the excitation rod to pass through. One end of the knotter spindle (3) extends into the transmission box (2) and is connected to a striking rod mechanism. The striking rod mechanism includes a swing rod (30), a striking rod (31), a first connecting rod (32), and a second connecting rod (33). One end of the swing rod (30) is fixed to the knotter spindle (3), and the other end is hinged to the first connecting rod (32). The first connecting rod (32) is hinged to the second connecting rod (33), and the second connecting rod (33) is connected to the rope needle shaft. (27) Fixed, the middle part of the swing rod (30) is hinged to the impact rod (31), a second compression spring is connected between the swing rod (30) and the impact rod (31), a sprocket (34) is rotatably connected to the main shaft (3) of the knotter, a protrusion (35) is provided on the sprocket (34), and a hook (36) is provided on the impact rod (31) to cooperate with the protrusion (35), and the hook (36) can hook the protrusion (35); One end of the excitation rod shaft (28) extends into the transmission box and is connected to a U-shaped pull rod (37). The U-shaped pull rod (37) is rotatably connected to a third pull rod, and the third pull rod is rotatably connected to a lifting rod (38). A lifting rod seat (39) that cooperates with the lifting rod (38) is fixed in the transmission box. A second reset spring (40) for the lifting rod to rise and reset is sleeved on the lifting rod (38). After the lifting rod (38) is reset, its top end can abut against the impact rod (31).

7. A rice straw picking and baling machine according to claim 6, characterized in that: The bale ejection mechanism includes a crank assembly (41), a drive arm (42), and a bale ejection fork (43). The crank assembly (41) is located above the bale ejection fork (43) and is rotatably connected to the bale ejection fork (43). One end of the drive arm (42) is rotatably connected to the bale ejection fork (43), and the other end is fixedly connected to the knotter spindle (3).

8. A rice straw picking and baling machine according to claim 1, characterized in that: A tying rope box (44) is provided on the frame (1) above the torsion spring (7).

9. A rice straw picking and baling machine according to claim 6, characterized in that: The frame is provided with a rope guiding structure, which includes a rope threading guide (45) located below the grass support plate. One end of the rope threading guide (45) is provided with a rope threading guide wheel (46), which is located below the torsion spring (7). A rope guide ring connecting plate (47) is also fixed on the frame (1) below the grass support plate (22). The end of the rope guide ring connecting plate (47) is provided with a rope guide ring (48), which is located below the rope guiding needle (5).

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