Ponding machine for crop transplanting

Abstract

The invention discloses a pond digging machine for crop transplanting. The pond digging machine comprises a rack, a first rotating shaft, two first chain wheels and a first cross beam, two first bearing seats are mounted above the first cross beam; one end of the first chain wheel is connected with an annular mounting part; the outer wall of the mounting part is rotationally mounted in the first bearing seat through a second bearing; two ends of the first rotating shaft are mounted in inner cavities of the mounting parts through first bearings; a groove is formed in the side, away from the first bearing seat, of the first chain wheel. A chute is formed in the middle of the first rotating shaft; the inner wall of the movable sleeve is connected with a sliding block in sliding fit with the sliding groove. Two ends of the movable sleeve are connected with transmission parts; the inner wall of the groove and the outer wall of the transmission part are provided with tooth profiles matched with each other. Compared with the prior art, the chain wheel has the advantages that the first chain wheel and the first rotating shaft can be mounted by only using the two first bearing seats through the mounting structure with a unique design, and the chain wheel is good in wear resistance, long in service life, simple in structure and low in cost.

Description

Technical Field

[0001] The present invention relates to the technical field of pond-digging machines for transplanting, and particularly to a pond-digging machine for crop transplanting. Background Art

[0002] When transplanting crops such as tobacco, some vegetables and fruits, it is necessary to first dig transplanting holes in the field. Different crops have different suitable transplanting plant spacings. Most of the existing transplanting pond-digging machines can only perform pond-digging and transplanting operations with one plant spacing, which limits their application to different crops. Some transplanting pond-digging machines with adjustable plant spacing have complex structures, large weights, and high costs. Therefore, it is necessary to develop a crop transplanting pond-digging machine with a simple structure and low cost that can adjust the plant spacing. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a crop transplanting pond-digging machine with a simple structure and low cost that can adjust the plant spacing.

[0004] To solve the above technical problem, the technical solution of the present invention is a crop transplanting pond-digging machine, including a frame, a first rotating shaft, and two first sprockets. A first cross beam is fixedly connected to the frame; two first bearing seats are installed above the first cross beam; one end of the first sprocket is connected with an annular installation part; the outer wall of the installation part is rotatably installed in the first bearing seat through a second bearing; both ends of the first rotating shaft are installed in the inner cavity of the installation part through a first bearing; a through hole for the first rotating shaft to pass through is provided in the center of the first sprocket, and a groove is provided on the side away from the first bearing seat; a chute is provided in the middle of the first rotating shaft; a sliding block that is slidably matched with the chute is connected to the inner wall of the moving sleeve; both ends of the moving sleeve are connected with a transmission part; mutually matching tooth shapes are provided on the inner wall of the groove and the outer wall of the transmission part.

[0005] Further, a second cross beam is fixedly connected to the frame; a second rotating shaft is rotatably installed above the second cross beam through a second bearing seat; two second sprockets are installed on the second rotating shaft; the first sprocket and the second sprocket are connected by a transmission chain; earth-shoveling mechanisms are installed at both ends of the second rotating shaft.

[0006] Further, a sliding shaft is movably installed above the frame, and a shifting rod is installed on the sliding shaft; limiting rings are provided on both sides of the moving sleeve; one end of the shifting rod is fixedly connected with a semi-circular shifting part; a gap is provided between the shifting part and the middle part of the moving sleeve.

[0007] Further, a first vertical plate and a second vertical plate are respectively fixedly connected above the first cross beam and the second cross beam; the first bearing seat and the second bearing seat are respectively installed on the first vertical plate and the second vertical plate; opening grooves for passing through the first rotating shaft and the second rotating shaft are respectively provided on the first vertical plate and the second vertical plate.

[0008] Further, sliding sleeves slidably connected to the sliding shaft are fixedly connected to one side of each of the two first vertical plates; a support plate is fixedly connected to one side of the frame; a shift lever is hinged above the support plate; a strip-shaped groove is formed at one end of the shift lever; a convex column is fixedly connected to the lower end of the sliding shaft, and the convex column penetrates through the strip-shaped groove.

[0009] Further, each earth-shoveling mechanism includes a rocker, a first connecting rod with one end connected to the second rotating shaft, and a second connecting rod with one end hinged to the frame; one end of the rocker is hinged to one end of the second connecting rod, and a mounting bracket is detachably installed at the other end thereof; an earth shovel is installed on the mounting bracket; one end of the first connecting rod is hinged to the rocker; the installation angles of the first connecting rods of the two earth-shoveling mechanisms are staggered, and the lengths of the rockers of the two earth-shoveling mechanisms are different.

[0010] Further, an arc-shaped groove for connecting the mounting bracket is formed at one end of the rocker; a plurality of hinge holes are formed at the end of the second connecting rod connected to the rocker.

[0011] Further, a connecting part or a handle for connecting to a tractor is installed at the front end of the frame; support legs are installed at the lower end of the frame, and walking wheels are installed at the lower ends of the support legs.

[0012] Further, a driving sprocket is installed at one end of the first rotating shaft; the driving sprocket is connected to a driving assembly through a driving transmission chain.

[0013] Further, the support leg includes a support rod fixedly connected to the side wall of the frame, a sleeve rod fixedly connected to the support rod, and a plug rod inserted into the sleeve rod; the walking wheel is installed at the lower end of the plug rod.

[0014] Advantages of the present invention: Through a uniquely designed installation structure, the present invention can install the first sprocket and the first rotating shaft by using only two first bearing seats, and can realize the switching of the two first sprockets for work without interference, with good wear resistance, long service life, simple structure, and low cost.

[0015] When it is necessary to adjust the transplanting plant spacing, control the moving sleeve to move until the transmission part on one side moves into the groove, and the tooth shapes on the inner wall of the groove and the outer wall of the transmission part are matched. During work, the first rotating shaft rotates to drive the moving sleeve to rotate, thereby driving the corresponding first sprocket to rotate. The rotation of the first sprocket can drive the second sprocket and the second rotating shaft to rotate through the transmission chain, so as to drive the earth-shoveling mechanism installed on the second rotating shaft to perform earth-shoveling operations. Description of the drawings

[0016] Figure 1 It is a top view of Embodiment 1; Figure 2 It is Figure 1A magnified view of the local structure; Figure 3 It is a cross-sectional view of the installation structure of the transmission part and the first sprocket; Figure 4 It is a partial structural cross-sectional view of the moving sleeve and the shifting rod in Example 1; Figure 5 for Figure 1 A magnified view of the local structure at center A; Figure 6 This is a front view of a set of shoveling mechanisms in Example 1.

[0017] In the figure, 1-frame, 2-first rotating shaft, 3-first sprocket, 4-movable sleeve, 401-limiting ring, 5-transmission part, 6-groove, 7-mounting part, 8-first bearing, 9-second bearing, 10-first bearing seat, 11-first vertical plate, 12-opening groove, 13-shift rod, 1301-shifting part, 14-sliding shaft, 15-sliding sleeve, 16-second sprocket, 17-transmission chain, 18-driving sprocket, 19-second rotating shaft, 20-second bearing seat, 21-second vertical plate, 22-first connecting rod, 23-second connecting rod, 24-rocker, 25-mounting frame, 26-digging shovel, 27-support rod, 28-sleeve rod, 29-insertion rod, 30-arc groove, 31-support plate, 32-shift lever, 33-strip groove, 34-connecting part, 35-first beam, 36-second beam. DETAILED DESCRIPTION

[0018] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0019] Example 1 A pond digging machine for crop transplanting, such as Figures 1-6As shown in the figure, it includes a frame 1, a first rotating shaft 2, and two first sprockets 3. A first cross beam 35 is fixedly connected to the frame 1. Above the first cross beam 35, two first bearing seats 10 are installed. One end of the first sprocket 3 is connected with an annular mounting part 7. The outer wall of the mounting part 7 is rotatably installed in the first bearing seat 10 through a second bearing 9. Both ends of the first rotating shaft 2 are installed in the inner cavity of the mounting part 7 through a first bearing 8. A through hole for the first rotating shaft 2 to pass through is provided in the center of the first sprocket 3, and a groove 6 is provided on the side away from the first bearing seat 10. A sliding groove is provided in the middle of the first rotating shaft 2. A sliding block that is slidably matched with the sliding groove is connected to the inner wall of the moving sleeve 4. Both ends of the moving sleeve 4 are connected with a transmission part 5. Tooth profiles that cooperate with each other are provided on the inner wall of the groove 6 and the outer wall of the transmission part 5. Through the design of a unique installation structure, only two first bearing seats 10 are used to install the first sprocket 3 and the first rotating shaft 2, and the two first sprockets 3 can be switched to work without interference, with good wear resistance and long service life.

[0020] Specifically, a second cross beam 36 is fixedly connected to the frame 1. Above the second cross beam 36, a second rotating shaft 19 is rotatably installed through a second bearing seat 20. Two second sprockets 16 are installed on the second rotating shaft 19. The first sprocket 3 and the second sprocket 16 are connected by a transmission chain 17. Shoveling mechanisms are installed at both ends of the second rotating shaft 19. When it is necessary to adjust the transplanting plant spacing, control the movement of the moving sleeve 4 until the transmission part 5 on one side moves into the groove 6 and the tooth profiles on the inner wall of the groove 6 and the outer wall of the transmission part 5 cooperate with each other. During operation, the rotation of the first rotating shaft 2 drives the rotation of the moving sleeve 4, thereby driving the corresponding first sprocket 3 to rotate. The rotation of the first sprocket 3 can drive the rotation of the second sprocket 16 and the second rotating shaft 19 through the transmission chain 17, so as to drive the shoveling mechanism installed on the second rotating shaft 19 to perform shoveling operations.

[0021] Specifically, a sliding shaft 14 is movably installed above the frame 1, and a shifting rod 13 is installed on the sliding shaft 14. Limiting rings 401 are provided on both sides of the moving sleeve 4. One end of the shifting rod 13 is fixedly connected with a semi-circular shifting part 1301. A gap is provided between the shifting part 1301 and the middle part of the moving sleeve 4. By controlling the movement of the sliding shaft 14, the shifting rod 13 can be driven to move, and the movement of the shifting rod 13 can squeeze the limiting ring 401 to force the moving sleeve 4 to move. During operation, the rotation of the first rotating shaft 2 can drive the rotation of the moving sleeve 4, and the shifting part 1301 does not interfere with the rotation of the moving sleeve 4.

[0022] Specifically, in order to facilitate the disassembly and assembly of the first rotating shaft 2 and the second rotating shaft 19, a first vertical plate 11 and a second vertical plate 21 are respectively fixedly connected above the first cross beam 35 and the second cross beam 36. The first bearing seat 10 and the second bearing seat 20 are respectively installed on the first vertical plate 11 and the second vertical plate 21. Open slots 12 for passing through the first rotating shaft 2 and the second rotating shaft 19 are respectively provided on the first vertical plate 11 and the second vertical plate 21.

[0023] Specifically, on one side of each of the two first vertical plates 11, a sliding sleeve 15 slidably connected to the sliding shaft 14 is fixedly connected; on one side of the frame 1, a support plate 31 is fixedly connected; above the support plate 31, a shift lever 32 is hinged; at one end of the shift lever 32, a strip-shaped groove 33 is formed; at the lower end of the sliding shaft 14, a convex column is fixedly connected, and the convex column penetrates through the strip-shaped groove 33. When switching, rotate one end of the shift lever 32, the shift lever 32 rotates around the hinge shaft, the other end of the shift lever 32 rotates, and under the action of the strip-shaped groove 33 and the sliding sleeve 15, the sliding shaft 14 drives the shift lever 13 to move, and the movement of the shift lever 13 can squeeze the limiting ring 401 to force the moving sleeve 4 to move.

[0024] Specifically, each earth-moving mechanism includes a rocker 24, a first connecting rod 22 with one end connected to the second rotating shaft 19, and a second connecting rod 23 with one end hinged to the frame 1; one end of the rocker 24 is hinged to one end of the second connecting rod 23, and the other end thereof is detachably provided with a mounting bracket 25; a earth-digging shovel 26 is mounted on the mounting bracket 25; one end of the first connecting rod 22 is hinged to the rocker 24; the mounting angles of the first connecting rods 22 of the two earth-moving mechanisms are staggered, and the lengths of the rockers 24 of the two earth-moving mechanisms are different. The rotation of the second rotating shaft 19 can drive the two first connecting rods 22 mounted at both ends of the second rotating shaft 19 to perform circular motion respectively, and the rocker 24 performs periodic swinging under the drive of the first connecting rod 22 and the action of the second connecting rod 23, so that the earth-digging shovel 26 swings up and down to realize the operation of digging ponds for transplanting holes. Since the mounting angles of the two first connecting rods 22 on both sides are different, and the lengths of the two rockers 24 are different, when the second rotating shaft 19 rotates, it can drive the two earth-digging shovels 26 to swing staggeredly, and the two earth-digging shovels 26 cooperate to complete the operation of digging a pond for one transplanting hole.

[0025] Specifically, an arc-shaped groove 30 for connecting the mounting bracket 25 is formed at one end of the rocker 24; several hinge holes are formed at the end of the second connecting rod 23 connected to the rocker 24. By adjusting the position of the hinge hole where the second connecting rod 23 is mounted to the rocker 24, and the mounting position of the mounting bracket 25 to the arc-shaped groove 30 on the rocker 24, the mounting angle of the rocker 24 can be adjusted, so that the depth of pond digging can be adjusted.

[0026] Specifically, at the front end of the frame 1, a connecting portion 34 or a handle for connecting to a tractor is mounted; at the lower end of the frame 1, support legs are mounted, and at the lower end of the support legs, traveling wheels are mounted.

[0027] Specifically, a driving sprocket 18 is mounted at one end of the first rotating shaft 2; the driving sprocket 18 is connected to the driving assembly through a driving chain. The driving assembly can be a motor mounted on the frame 1 and a sprocket mounted on the motor; or it can be a rotatable sprocket mounted on the tractor and a driving device capable of driving the sprocket to rotate.

[0028] Specifically, the supporting leg includes a support rod 27 fixedly connected to the side wall of the frame 1, a sleeve rod 28 fixedly connected to the support rod 27, and a plug rod 29 inserted into the sleeve rod 28; the traveling wheel is installed at the lower end of the plug rod 29. By adjusting the height of the plug rod 29 inserted into the sleeve rod 28, the height of the frame 1 from the ground can be adjusted, thereby adjusting the depth of pond digging. In this embodiment, bolts are used to tighten the plug rod 29. In another embodiment, a plurality of holes may be provided on the plug rod 29 and connected by bolts.

[0029] In another embodiment, all the sprockets can be replaced with belt pulleys, and the drive chain can be replaced with a synchronous belt.

[0030] The working principle of the present invention: When the plant spacing needs to be adjusted, one end of the shift lever 32 is rotated. The shift lever 32 rotates around the hinge shaft, and the other end of the shift lever 32 rotates. Under the action of the strip groove 33 and the sliding sleeve 15, the sliding shaft 14 drives the shift lever 13 to move. The movement of the shift lever 13 can drive the moving sleeve 4 to move until the moving sleeve 4 is pushed into the groove 6 of another first sprocket 3, thus completing the switching. Through the design of a unique installation structure, only two first bearing seats 10 are used to install the two first sprockets 3 and the first rotating shaft 2, and the two first sprockets 3 can be switched to work without interference, with good wear resistance and long service life.

[0031] During operation, a traction device is used to pull the pond digging machine for crop transplanting forward, or the pond digging machine for crop transplanting is manually pushed forward. The drive assembly drives the drive sprocket 18 to rotate, thereby driving the first rotating shaft 2 to rotate. The first rotating shaft 2 drives the moving sleeve 4 to rotate. Under the action of the tooth shape of the transmission part 5 and the groove 6 cooperating with each other, the rotation of the first rotating shaft 2 is transmitted to the first sprocket 3, and then the second sprocket 16 is driven to rotate through the drive chain 17, thereby driving the second rotating shaft 19 to rotate. The rotation of the second rotating shaft 19 can drive the two first connecting rods 22 installed at both ends of the second rotating shaft 19 to perform circular rotation respectively. The rocker 24 performs periodic swinging under the drive of the first connecting rod 22 and the action of the second connecting rod 23, so that the earth digging shovel 26 swings up and down, realizing the operation of digging a pond. Since the installation angles of the two first connecting rods 22 on both sides are different and the lengths of the two rockers 24 are different, when the second rotating shaft 19 rotates, it can drive the two earth digging shovels 26 to swing staggeredly, and the two earth digging shovels 26 cooperate to complete the pond digging operation of a transplanting hole.

[0032] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions, and variations of these embodiments still fall within the protection scope of the present invention.

Claims

1. A pond digging machine for crop transplanting, characterized in that: The invention comprises a frame (1), a first rotating shaft (2), and two first sprockets (3), wherein a first crossbeam (35) is fixedly connected to the frame (1); two first bearing seats (10) are installed above the first crossbeam (35); one end of the first sprocket (3) is connected to an annular mounting portion (7); the outer wall of the mounting portion (7) is rotatably mounted in the first bearing seat (10) via a second bearing (9); both ends of the first rotating shaft (2) are mounted in the inner cavity of the mounting portion (7) via first bearings (8); a through hole for the first rotating shaft (2) to pass through is provided at the center of the first sprocket (3), and a groove (6) is provided on a side away from the first bearing seat (10); a sliding groove is provided in the middle of the first rotating shaft (2); a sliding block slidably matched with the sliding groove is connected to the inner wall of the movable sleeve (4); the two ends of the movable sleeve (4) are connected to the transmission portion (5); the inner wall of the groove (6) and the outer wall of the transmission portion (5) are both provided with teeth that match each other.

2. The pond digging machine for crop transplanting according to claim 1, characterized in that: A second crossbeam (36) is fixedly connected to the frame (1); a second rotating shaft (19) is rotatably mounted above the second crossbeam (36) via a second bearing seat (20); two second sprockets (16) are mounted on the second rotating shaft (19); the first sprocket (3) and the second sprocket (16) are connected via a transmission chain (17); and soil shoveling mechanisms are mounted on both ends of the second rotating shaft (19).

3. The pond digging machine for crop transplanting according to claim 1, characterized in that: A sliding shaft (14) is movably mounted above the frame (1), and a lever (13) is mounted on the sliding shaft (14); limit rings (401) are arranged on both sides of the moving sleeve (4); a semi-annular lever portion (1301) is fixedly connected to one end of the lever (13); and a gap is arranged between the lever portion (1301) and a middle portion of the moving sleeve (4).

4. The pond digging machine for crop transplanting according to claim 3, characterized in that: A first vertical plate (11) and a second vertical plate (21) are fixedly connected above the first cross beam (35) and the second cross beam (36), respectively; the first bearing seat (10) and the second bearing seat (20) are mounted on the first vertical plate (11) and the second vertical plate (21), respectively; and the first vertical plate (11) and the second vertical plate (21) are respectively provided with an opening groove (12) for passing through the first rotating shaft (2) and the second rotating shaft (19).

5. The pond digging machine for crop transplanting according to claim 4, characterized in that: One side of each of the two first vertical plates (11) is fixedly connected to a sliding sleeve (15) slidably connected to the sliding shaft (14); one side of the frame (1) is fixedly connected to a support plate (31); a shift lever (32) is hingedly connected to the upper side of the support plate (31); a strip groove (33) is formed at one end of the shift lever (32); and a convex column is fixedly connected to the lower end of the sliding shaft (14), and the convex column passes through the strip groove (33).

6. The pond digging machine for crop transplanting according to claim 2, characterized in that: Each set of the shoveling mechanisms comprises a rocker (24), a first connecting rod (22) having one end connected to the second rotating shaft (19), and a second connecting rod (23) having one end hinged to the frame (1); one end of the rocker (24) is hinged to one end of the second connecting rod (23), and a mounting frame (25) is detachably mounted on the other end; an excavating shovel (26) is mounted on the mounting frame (25); one end of the first connecting rod (22) is hinged to the rocker (24); the mounting angles of the first connecting rods (22) of the two sets of the shoveling mechanisms are staggered, and the lengths of the rockers (24) of the two sets of the shoveling mechanisms are different.

7. The pond digging machine for crop transplanting according to claim 6, characterized in that: An arc-shaped groove (30) for connecting to the mounting frame (25) is formed at one end of the rocker (24); and a plurality of hinge holes are formed at one end of the second connecting rod (23) connected to the rocker (24).

8. The pond digging machine for crop transplanting according to claim 1, characterized in that: A connecting portion (34) or a handle for connecting to a traction machine is installed at the front end of the frame (1); a supporting leg is installed at the lower end of the frame (1), and a walking wheel is installed at the lower end of the supporting leg.

9. The pond digging machine for crop transplanting according to claim 1, characterized in that: A driving sprocket (18) is mounted on one end of the first rotating shaft (2); the driving sprocket (18) is connected to a driving component via a driving transmission chain.

10. The pond digging machine for crop transplanting according to claim 8, characterized in that: The support leg comprises a support rod (27) fixedly connected to the side wall of the frame (1), a sleeve rod (28) fixedly connected to the support rod (27), and an insertion rod (29) inserted into the sleeve rod (28); the walking wheel is mounted on the lower end of the insertion rod (29).

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