A two-way imitating and compacting device for dry direct seeding of rice

Abstract

The application discloses a rice dry direct-seeding bidirectional profiling and compacting device, and relates to the technical field of agricultural machinery. The device solves the problem that a rigid compacting device cannot realize transverse profiling and has poor compacting uniformity, which leads to difficulty in improving rice yield. In the application, the bidirectional profiling and compacting device is fixed on a rear frame of a rice dry direct-seeding machine, and advances under the traction of a tractor to complete full-range profiling and uniform compacting of soil after seeding. The elastic deformation of each elastic sheet occurs under the impact load of the soil during the compacting process, and the elastic deformation of each elastic sheet can realize longitudinal profiling. Meanwhile, the different elastic deformations of each group of elastic sheets can realize transverse profiling. The profiling function of the elastic sheet has fast response, and the profiling is accurate and rapid when the soil flatness changes little or the soil is locally slightly convex or concave. The elastic energy storage ensures compacting stability.

Description

Technical Field

[0001] This invention relates to the technical field of agricultural machinery, and in particular to a two-way imitation rolling device for direct-seeded rice. Background Technology

[0002] Direct seeding of rice is a simple and efficient rice cultivation method, and an important measure to alleviate labor shortages and water scarcity in agricultural production. Rolling is the final step in the direct seeding process, and the performance of the rolling device directly determines soil firmness and the position of the rice seeds relative to the ground surface, thus affecting rice yield. Currently, the most common rigid rolling devices cannot achieve lateral conformation, resulting in poor rolling uniformity and hindering yield increases. Summary of the Invention

[0003] To address the problem that the rigid pressing device mentioned above cannot achieve lateral conformation and has poor pressing uniformity, which makes it difficult to increase rice yield, the purpose of this invention is to provide a bidirectional conformation pressing device for direct-seeded rice.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A two-way simulated row compaction device for direct-seeded rice cultivation, comprising:

[0006] Parallel four-bar linkage 1 and connecting frame 2, with the rear end of the connecting frame 2 mounted on the front end panel 101 of the parallel four-bar linkage 1;

[0007] The components include a curved block 6, a support frame 7, a pressing wheel 8, and a shaft 9. The curved block 6 is mounted on the support frame 7, and the pressing wheel 8 is rotatably mounted on the shaft 9. The two ends of the shaft 9 are respectively connected to the two side arms of the support frame 7.

[0008] Pin 5 is used to rotatably connect the front end of the connecting frame 2 and the top middle part of the curved block 6.

[0009] The above-mentioned two-way parallel pressing device for direct-seeding rice includes a connecting frame 2 comprising a connecting plate 201, a support arm 202, a limiting plate 203, a connecting shaft 204, and a pin connecting part 205. The connecting plate 201 is installed on one side end face of the parallel four-bar linkage 1. The rear end of the support arm 202 is connected to the connecting plate 201, the top front end of the support arm 202 is connected to the limiting plate 203, the upper end of the connecting shaft 204 is connected to the bottom front end of the support arm 202, and the pin connecting part 205 is connected to the lower end of the connecting shaft 204.

[0010] In the above-mentioned two-way imitation rolling device for direct-seeding rice, two parallel limiting assembly plates are provided on the top side of the curved block 6, and the pin shaft connection part 205 is located between the two limiting assembly plates. Both limiting assembly plates are provided with assembly through holes for installing the pin shaft 5.

[0011] In the aforementioned two-way simulated rolling press device for direct seeding of rice in dry conditions, the top center of the curved block 6 has an inwardly concave structure.

[0012] The above-mentioned two-way parallel pressing device for direct-seeding rice includes: a parallel pin 3 and a return spring 4. Both sides of the limiting plate 203 are provided with limiting through holes. Each limiting through hole is inserted into a parallel pin 3 from the bottom. Each parallel pin 3 has a limiting part at its lower end. Each parallel pin 3 is fitted with a return spring 4. The upper end of the return spring 4 abuts against the bottom surface of the limiting plate 203, and the lower end of the return spring 4 abuts against the limiting part. The limiting part abuts against the top side of the curved block 6.

[0013] The above-mentioned two-way imitation pressing device for direct-seeding rice includes a pressing wheel 8 comprising: a spring 801 and a spring mounting roller 802. The spring mounting roller 802 has an assembly hole in the middle for inserting a shaft 9, and multiple rows of springs 801 are arranged around the outer periphery of the spring mounting roller 802.

[0014] In the above-mentioned two-way imitation pressing device for direct-seeded rice, the spring piece 801 is S-shaped, with the shorter end of the spring piece 801 connected to the outer surface of the spring piece mounting roller 802, and the longer end of the spring piece 801 set away from the spring piece mounting roller 802.

[0015] In the aforementioned bidirectional imitation pressing device for direct-seeded rice, the end face of the spring mounting roller 802 is honeycomb mesh.

[0016] The above-mentioned two-way parallel compression device for direct-seeding rice includes a parallel four-bar linkage 1, which further comprises a rear end panel 102, a top connecting rod 103, and a bottom connecting rod 104. The rear end panel 102 and the front end panel 101 are arranged in parallel. The top of the rear end panel 102 and the top of the front end panel 101 are rotatably connected by two top connecting rods 103, and the bottom of the rear end panel 102 and the bottom of the front end panel 101 are rotatably connected by two bottom connecting rods 104.

[0017] The above-mentioned two-way parallel four-bar linkage 1 for direct-seeding rice includes a bottom fixed shaft 105, a top limiting baffle 106, a handle plate 108, and a tension spring 107. The two ends of the bottom fixed shaft 105 are respectively connected to two bottom connecting support rods 104, the two sides of the top limiting baffle 106 are respectively connected to two top connecting support rods 103, the lower end of the tension spring 107 is connected to the bottom fixed shaft 105, and the upper end of the tension spring 107 is connected to the handle plate 108. The top limiting baffle 106 is provided with multiple sets of snap-fit ​​slots from front to back, and the bottom sides of the handle plate 108 are provided with snap-fit ​​structures that match any set of snap-fit ​​slots.

[0018] The present invention, by employing the above-mentioned technology, has the following positive effects compared with the prior art:

[0019] (1) In this invention, during the compaction operation, the bidirectional imitation compaction device is fixed on the rear frame of the rice dryland planter and moves forward under the traction of the tractor to complete the all-round imitation and uniform compaction of the soil after sowing.

[0020] (2) In this invention, the bidirectional contour pressing device moves up and down with the undulations of the terrain under the action of the parallel four-bar mechanism and the single hinge structure, thereby completing the longitudinal contouring.

[0021] (3) In this invention, the support frame of the bidirectional imitation pressing device can rotate relative to the connecting frame around the hinge point. During operation, when there is a certain angle between the ground plane and the horizontal plane, the pressing wheel tilts with the lateral fluctuation of the terrain and maintains close contact with the soil surface under the action of gravity and the return spring, so as to achieve real-time lateral imitation and uniform and stable pressing.

[0022] (4) In this invention, the spring sheet is subjected to the impact load of the soil during the compaction process and undergoes elastic deformation. The elastic deformation of each spring sheet can play a longitudinal conforming function, while the different elastic deformations of each group of spring sheets can play a lateral conforming function. The conforming function of the spring sheet responds quickly. When encountering small changes in soil flatness or local slight bumps and depressions in the soil, the conforming is accurate and rapid, and the elastic energy storage ensures the stability of compaction. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a two-way imitation rolling device for direct-seeded rice in dryland conditions according to the present invention.

[0024] Figure 2 This is a side view of a bidirectional imitation rolling device for direct-seeded rice cultivation according to the present invention.

[0025] Figure 3 This is a front view of a bidirectional imitation rolling device for direct-seeded rice cultivation according to the present invention.

[0026] Figure 4 This is a schematic diagram of the curved block structure of a bidirectional imitation pressing device for direct-seeding rice according to the present invention.

[0027] Figure 5 This is a front view of the curved block of a bidirectional imitation pressing device for direct-seeding rice according to the present invention.

[0028] Figure 6 This is a front view of the imitation pin shaft of a bidirectional imitation pressing device for direct-seeding rice according to the present invention.

[0029] Figure 7 This is a schematic diagram of the connecting frame of a two-way imitation rolling device for direct-seeding rice according to the present invention.

[0030] Figure 8 This is a side view of the connecting frame of a two-way parallel pressing device for direct-seeding rice according to the present invention.

[0031] Figure 9 This is a front view of the connecting frame of a two-way parallel rolling press device for direct-seeding rice according to the present invention.

[0032] Figure 10 yes Figure 8 Top view.

[0033] Figure 11 This is a schematic diagram of the structure of the pressing wheel of a bidirectional imitation pressing device for direct-seeding rice according to the present invention.

[0034] Figure 12 This is a side view of the pressing wheel of a bidirectional imitation pressing device for direct-seeding rice according to the present invention.

[0035] Figure 13 This is a schematic diagram of the spring sheet of a two-way imitation pressing device for direct-seeding rice in dryland areas according to the present invention.

[0036] Figure 14 This is a side view of the spring sheet of a two-way imitation pressing device for direct-seeding rice according to the present invention.

[0037] Figure 15 This is a schematic diagram of the parallel four-bar linkage of a bidirectional imitation pressing device for direct-seeding rice according to the present invention.

[0038] In the attached diagram: 1. Parallel four-bar linkage; 101. Front end panel; 102. Rear end panel; 103. Top connecting support rod; 104. Bottom connecting support rod; 105. Bottom fixed shaft; 106. Top limiting baffle; 107. Tension spring; 108. Handle plate; 2. Connecting frame; 201. Connecting plate; 202. Support arm; 203. Limiting plate; 204. Connecting shaft; 205. Pin shaft connection part; 3. Imitation pin shaft; 4. Return spring; 5. Pin shaft; 6. Curved block; 7. Support frame; 8. Pressing wheel; 801. Spring piece; 802. Spring piece mounting roller; 9. Shaft. Detailed Implementation

[0039] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0040] Please refer to Figures 1 to 15 As shown, a two-way simulated rolling device for direct-seeded rice cultivation is illustrated, comprising:

[0041] Parallel four-bar linkage 1 and connecting frame 2, with the rear end of the connecting frame 2 mounted on the front end panel 101 of the parallel four-bar linkage 1;

[0042] The components include a curved block 6, a support frame 7, a pressing wheel 8, and a shaft 9. The curved block 6 is mounted on the support frame 7, and the pressing wheel 8 is rotatably mounted on the shaft 9. The two ends of the shaft 9 are respectively connected to the two side arms of the support frame 7.

[0043] Pin 5 is used to rotatably connect the front end of the connecting frame 2 and the top middle part of the curved block 6.

[0044] Furthermore, in a preferred embodiment, the connecting frame 2 includes: a connecting plate 201, a support arm 202, a limiting plate 203, a connecting shaft 204, and a pin connecting part 205. The connecting plate 201 is mounted on one side end face of the parallel four-bar linkage 1. The rear end of the support arm 202 is connected to the connecting plate 201, the top front end of the support arm 202 is connected to the limiting plate 203, the upper end of the connecting shaft 204 is connected to the bottom front end of the support arm 202, and the pin connecting part 205 is connected to the lower end of the connecting shaft 204.

[0045] Furthermore, in a preferred embodiment, the top side of the curved block 6 is provided with two parallel limiting assembly plates, and the pin connection part 205 is provided between the two limiting assembly plates. Both limiting assembly plates are provided with assembly through holes for installing the pin 5.

[0046] Furthermore, in a preferred embodiment, the top center of the curved block 6 has a concave structure.

[0047] Furthermore, in a preferred embodiment, it further includes: a mimicking pin 3 and a return spring 4. Both sides of the limiting plate 203 are provided with limiting through holes. Each limiting through hole inserts a mimicking pin 3 from the bottom. Each mimicking pin 3 has a limiting part at its lower end. Each mimicking pin 3 is fitted with a return spring 4. The upper end of the return spring 4 abuts against the bottom surface of the limiting plate 203, and the lower end of the return spring 4 abuts against the limiting part. The limiting part abuts against the top side of the curved block 6.

[0048] Furthermore, in a preferred embodiment, the pressing wheel 8 includes: a spring sheet 801 and a spring sheet mounting roller 802. The spring sheet mounting roller 802 has an assembly hole in the middle for inserting the shaft 9, and multiple rows of spring sheets 801 are arranged around the outer periphery of the spring sheet mounting roller 802.

[0049] Furthermore, in a preferred embodiment, the spring piece 801 is S-shaped, with the shorter end of the spring piece 801 connected to the outer surface of the spring piece mounting roller 802, and the longer end of the spring piece 801 disposed away from the spring piece mounting roller 802.

[0050] Furthermore, in a preferred embodiment, the end face of the spring mounting roller 802 is honeycomb mesh.

[0051] Furthermore, in a preferred embodiment, the parallel four-bar linkage 1 further includes: a rear end panel 102, a top connecting rod 103, and a bottom connecting rod 104. The rear end panel 102 and the front end panel 101 are arranged in parallel. The top of the rear end panel 102 and the top of the front end panel 101 are rotatably connected by two top connecting rods 103, and the bottom of the rear end panel 102 and the bottom of the front end panel 101 are rotatably connected by two bottom connecting rods 104.

[0052] Furthermore, in a preferred embodiment, the parallel four-bar linkage 1 further includes: a bottom fixed shaft 105, a top limiting baffle 106, a handle plate 108, and a tension spring 107. The two ends of the bottom fixed shaft 105 are respectively connected to two bottom connecting support rods 104, the two sides of the top limiting baffle 106 are respectively connected to two top connecting support rods 103, the lower end of the tension spring 107 is connected to the bottom fixed shaft 105, and the upper end of the tension spring 107 is connected to the handle plate 108. The top limiting baffle 106 is provided with multiple sets of snap-fit ​​slots from front to back, and the bottom sides of the handle plate 108 are provided with snap-fit ​​structures that match any set of snap-fit ​​slots.

[0053] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention.

[0054] In addition to the above, the present invention also has the following embodiments:

[0055] In a further embodiment of the present invention, the parallel four-bar linkage 1 comprises a front end panel 101, a rear end panel 102, a top connecting rod 103, and a bottom connecting rod 104 forming a parallelogram structure. The front end panel 101 and the rear end panel 102 are of the same length and are parallel to each other. The top connecting rod 103 and the bottom connecting rod 104 are of the same length and are parallel to each other. The two ends of the bottom fixed shaft 105 are respectively connected to the two bottom connecting rods 104. The lower end of the tension spring 107 is connected to the bottom fixed shaft. The shaft 105 is connected, the upper end of the tension spring 107 is connected to the handle plate 108, the top limiting baffle 106 is provided with multiple sets of snap-fit ​​slots from front to back, and the bottom sides of the handle plate 108 are provided with snap-fit ​​structures that match any set of snap-fit ​​slots. The rear end panel 102 is fixedly installed on the agricultural machinery. By pulling the handle plate 108, the snap-fit ​​structures on both sides of its bottom are snapped into different sets of snap-fit ​​slots, which can adjust the vertical height of the front end panel 101, thereby adjusting the vertical height of the press wheel 8.

[0056] In a further embodiment of the present invention, the pressing wheel 8 includes: spring pieces 801 and spring piece mounting roller 802. The outer periphery of the spring piece mounting roller 802 is composed of 12 groups of spring pieces 801, each group consisting of 4 spring pieces 801 arranged laterally, for a total of 48 spring pieces 801. Figure 11 As shown.

[0057] In a further embodiment of the present invention, the end face of the spring mounting roller 802 is honeycomb mesh, such as... Figure 12 As shown, the honeycomb mesh has low mass, high strength, and good deformation and rebound effects, which reduces the overall mass of the press wheel 8 while ensuring its overall strength, thus enabling the press function.

[0058] In a further embodiment of the present invention, the top center of the curved block 6 has a concave structure, and two parallel limiting assembly plates are provided at the top center of the curved block 6. The connecting frame 2 includes: a connecting plate 201, a support arm 202, a limiting plate 203, a connecting shaft 204, and a pin connecting part 205. The connecting plate 201 is installed on one end face of the parallel four-bar linkage 1. The rear end of the support arm 202 is connected to the connecting plate 201, the top of the front end of the support arm 202 is connected to the limiting plate 203, the upper end of the connecting shaft 204 is connected to the bottom of the front end of the support arm 202, and the pin connecting part 205 is connected to the lower end of the connecting shaft 204. The pin connecting part 205 is located between the two limiting assembly plates, and the pin connecting part 205 and the two limiting assembly plates are rotatably connected by the pin 5. The device also includes: a mimicking pin 3 and a return spring 4. Limiting through holes are provided on both sides of the limiting plate 203, and the pin connecting part 205 is located between the two limiting assembly plates. Each side of part 205 is provided with a simulated pin 3. Each limiting through hole inserts a simulated pin 3 from the bottom. Each simulated pin 3 has a limiting part at its lower end. Each simulated pin 3 is fitted with a return spring 4. The upper end of the return spring 4 abuts against the bottom surface of the limiting plate 203, and the lower end of the return spring 4 abuts against the limiting part. The limiting part abuts against the top side of the curved block 6. The limiting part has a hemispherical structure, which increases the contact area with the top side of the curved block 6. When the pressing wheel 8 travels on an uneven road surface, the pressing wheel 8 may tilt to the left or right. At this time, the return spring 4 located on the left or right side is compressed. When the pressing wheel 8 travels on a flat road surface again, under the action of the return spring 4, the pressing wheel 8 returns to the vertical state, which improves the working performance of the pressing wheel 8 and improves the pressing effect of the pressing wheel 8 on both flat and uneven road surfaces.

[0059] In a further embodiment of the present invention, during the compaction operation, the bidirectional imitation compaction device is fixed on the rear frame of the rice dryland planter and moves forward under the traction of the tractor to complete the all-round imitation and uniform compaction of the soil after sowing.

[0060] In a further embodiment of the present invention, the single hinge structure consists of a bottom fixed shaft 105, a top limiting baffle 106, a handle plate 108, and a tension spring 107. The tension spring 107 has an elastic and deformable effect. During the pressing process on flat and uneven road surfaces, the pressing wheel 8 can float up and down under the action of the tension spring 107 to achieve longitudinal contouring.

[0061] In a further embodiment of the present invention, the longitudinal (up and down) contouring function is as follows: the bidirectional contouring pressing device moves up and down with the undulations of the terrain under the action of the parallel four-bar mechanism 1 and the single hinge structure, thereby completing the longitudinal contouring.

[0062] In a further embodiment of the present invention, the lateral (left-right) contouring function is provided: the support frame 7 of the bidirectional contouring compaction device can rotate relative to the connecting frame 2 around the pin 5. During operation, when there is a certain angle between the ground plane and the horizontal plane, the compaction wheel 8 tilts with the lateral fluctuations of the terrain, and under the action of gravity and the return spring 4, it maintains close contact with the soil surface, achieving real-time lateral contouring and uniform and stable compaction.

[0063] In a further embodiment of the present invention, the bidirectional micro-contouring function is provided: the pressing wheel 8 is composed of 12 sets of spring plates 801, each set consisting of 4 spring plates 801 arranged laterally, for a total of 48 spring plates 801. During the pressing process, the spring plates 801 are subjected to the impact load of the soil and undergo elastic deformation. The elastic deformation of each spring plate 801 provides a longitudinal contouring function, while the different elastic deformations of each set of spring plates 801 provide a lateral contouring function. The contouring function of the spring plates 801 responds quickly; when encountering small changes in soil flatness or localized slight unevenness, the contouring is accurate and rapid, and the elastic energy storage ensures stable pressing.

[0064] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A bidirectional row-following compaction device for direct-seeded rice, characterized in that, include: Parallel four-bar linkage (1) and connecting frame (2), the rear end of the connecting frame (2) is mounted on the front end panel (101) of the parallel four-bar linkage (1); The curved block (6), support frame (7), press wheel (8) and shaft (9) are mounted on the support frame (7), and the press wheel (8) is rotatably mounted on the shaft (9). The two ends of the shaft (9) are respectively connected to the two side arms of the support frame (7). The front end of the connecting frame (2) and the top middle part of the curved block (6) are rotatably connected by the pin (5); The connecting frame (2) includes: a connecting plate (201), a support arm (202), a limiting plate (203), a connecting shaft (204), and a pin connecting part (205). The connecting plate (201) is installed on one side end face of the parallel four-bar linkage (1). The rear end of the support arm (202) is connected to the connecting plate (201), the top front end of the support arm (202) is connected to the limiting plate (203), the upper end of the connecting shaft (204) is connected to the bottom front end of the support arm (202), and the pin connecting part (205) is connected to the lower end of the connecting shaft (204). It also includes: a simulated pin (3) and a return spring (4). Both sides of the limiting plate (203) are provided with limiting through holes. Each limiting through hole is inserted into a simulated pin (3) from the bottom. Each simulated pin (3) has a limiting part at its lower end. Each simulated pin (3) is fitted with a return spring (4). The upper end of the return spring (4) abuts against the bottom surface of the limiting plate (203), and the lower end of the return spring (4) abuts against the limiting part. The limiting part abuts against the top side of the curved block (6). The press wheel (8) includes: spring sheet (801) and spring sheet mounting roller (802). The spring sheet mounting roller (802) has a mounting hole in the middle for inserting the shaft (9). Multiple rows of spring sheets (801) are arranged around the outer periphery of the spring sheet mounting roller (802). The spring (801) is S-shaped. The shorter end of the spring (801) is connected to the outer surface of the spring mounting roller (802), and the longer end of the spring (801) is set away from the spring mounting roller (802).

2. The bidirectional row-following compaction device for direct-seeded rice as described in claim 1, characterized in that, The top side of the curved block (6) is provided with two parallel limiting assembly plates. The pin connection part (205) is located between the two limiting assembly plates. Both limiting assembly plates are provided with assembly through holes for installing the pin (5).

3. The bidirectional row-following compaction device for direct-seeded rice as described in claim 1, characterized in that, The top side of the curved block (6) has a concave structure.

4. The bidirectional row-following compaction device for direct-seeded rice as described in claim 1, characterized in that, The end face of the spring mounting roller (802) is honeycomb grid.

5. The bidirectional row-following compaction device for direct-seeded rice as described in claim 1, characterized in that, The parallel four-bar linkage (1) further includes: a rear end panel (102), a top connecting rod (103) and a bottom connecting rod (104). The rear end panel (102) and the front end panel (101) are arranged in parallel. The top of the rear end panel (102) and the top of the front end panel (101) are rotatably connected by two top connecting rods (103). The bottom of the rear end panel (102) and the bottom of the front end panel (101) are rotatably connected by two bottom connecting rods (104).

6. The bidirectional row-following compaction device for direct-seeded rice as described in claim 5, characterized in that, The parallel four-bar linkage (1) also includes: a bottom fixed shaft (105), a top limiting baffle (106), a handle plate (108), and a tension spring (107). The two ends of the bottom fixed shaft (105) are respectively connected to two bottom connecting support rods (104). The two sides of the top limiting baffle (106) are respectively connected to two top connecting support rods (103). The lower end of the tension spring (107) is connected to the bottom fixed shaft (105), and the upper end of the tension spring (107) is connected to the handle plate (108). The top limiting baffle (106) is provided with multiple sets of snap-fit ​​slots from front to back. The bottom sides of the handle plate (108) are provided with snap-fit ​​structures that match any set of snap-fit ​​slots.

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