A pond-digging machine for crop transplanting

Abstract

The present invention discloses a pond digging machine for crop transplanting, which comprises a frame, a first rotating shaft, two first sprockets and a first cross beam; 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 groove is formed on one side of the first sprocket away from the first bearing seat; a sliding groove is formed in the middle of the first rotating shaft; a sliding block which is slidably matched with the sliding groove is connected to the inner wall of the moving sleeve; both ends of the moving sleeve are connected with transmission parts; tooth shapes which are matched with each other are arranged on the inner wall of the groove and the outer wall of the transmission part. The advantages of the present invention are as follows: through a uniquely designed installation structure, only two first bearing seats are used to install the first sprocket and the first rotating shaft, which has good wear resistance, long service life, simple structure and low 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 transplant 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 slidably engaged with the chute is connected to the inner wall of the moving sleeve; transmission parts are connected to both ends of the moving sleeve; 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-annular 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 that are fixedly connected to one side of the two first vertical plates and are slidably connected to the sliding shaft are provided; a support plate is fixedly connected to one side of the machine 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-moving 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 machine 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-digging 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-moving mechanisms are staggered, and the lengths of the rockers of the two earth-moving 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 machine frame; support legs are installed at the lower end of the machine 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 component through a driving transmission chain.

[0013] Further, the support leg includes a support rod fixedly connected to the side wall of the machine 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:

[0015] Through a uniquely designed installation structure, the present invention can install the first sprocket and the first rotating shaft by only using two first bearing seats, and can realize the switching of the two first sprockets for work without interference, has good wear resistance, a long service life, a simple structure, and low cost.

[0016] When it is necessary to adjust the transplanting plant spacing, control the movement of the moving sleeve until the transmission part on one side moves into the groove, and the tooth shapes in the groove and on the outer wall of the transmission part cooperate. 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-moving mechanism installed on the second rotating shaft to perform earth-digging operations. Description of the drawings

[0017] Figure 1 It is a top view of Embodiment 1;

[0018] Figure 2 is Figure 1 an enlarged view of a local structure in

[0019] Figure 3 a sectional view of the installation structure of the transmission part and the first sprocket wheel;

[0020] Figure 4 a sectional view of the local structure of the moving sleeve and the shift lever in Embodiment 1;

[0021] Figure 5 is Figure 1 an enlarged view of the local structure at position A in

[0022] Figure 6 a front view of a set of soil-shoveling mechanisms in Embodiment 1.

[0023] In the figure, 1-frame, 2-first rotating shaft, 3-first sprocket wheel, 4-moving sleeve, 401-limit ring, 5-transmission part, 6-groove, 7-installation part, 8-first bearing, 9-second bearing, 10-first bearing seat, 11-first vertical plate, 12-opening groove, 13-shift lever, 1301-shifting part, 14-sliding shaft, 15-sliding sleeve, 16-second sprocket wheel, 17-driving chain, 18-driving sprocket wheel, 19-second rotating shaft, 20-second bearing seat, 21-second vertical plate, 22-first connecting rod, 23-second connecting rod, 24-rocker, 25-installation bracket, 26-earth-digging shovel, 27-supporting rod, 28-sleeve rod, 29-insert rod, 30-arc-shaped groove, 31-supporting plate, 32-shifting rod, 33-strip-shaped groove, 34-connecting part, 35-first cross beam, 36-second cross beam. Specific Embodiments

[0024] The following further describes the specific embodiments of the present invention with reference to the accompanying drawings. It should be noted here that the description of these embodiments is for helping to understand the present invention, but does not constitute a limitation to the present invention. In addition, the technical features involved in the following described various embodiments of the present invention can be combined with each other as long as they do not conflict with each other.

[0025] Embodiment 1

[0026] A pond-digging machine for crop transplanting, 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 portion 7. The outer wall of the mounting portion 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 portion 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 opened on the side away from the first bearing seat 10. A sliding groove is opened 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 portion 5. Tooth shapes that cooperate with each other are provided on the inner wall of the groove 6 and the outer wall of the transmission portion 5. Through the design of a unique mounting 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.

[0027] 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 moving sleeve 4 to move until the transmission portion 5 on one side moves into the groove 6 and the tooth shapes on the inner wall of the groove 6 and the outer wall of the transmission portion 5 cooperate with each other. During work, the rotation of the first rotating shaft 2 drives the moving sleeve 4 to rotate, thereby driving the corresponding first sprocket 3 to rotate. The rotation of the first sprocket 3 can drive the second sprocket 16 and the second rotating shaft 19 to rotate through the transmission chain 17, so as to drive the shoveling mechanism installed on the second rotating shaft 19 to perform shoveling operations.

[0028] 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 portion 1301. A gap is provided between the shifting portion 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 work, the rotation of the first rotating shaft 2 can drive the moving sleeve 4 to rotate, and the shifting portion 1301 does not interfere with the rotation of the moving sleeve 4.

[0029] Specifically, in order to facilitate the disassembly and assembly of the first rotating shaft 2 and the second rotating shaft 19, first vertical plates 11 and second vertical plates 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 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 opened on the first vertical plate 11 and the second vertical plate 21.

[0030] 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.

[0031] Specifically, each earth-shoveling 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 is detachably installed with a mounting bracket 25; a soil shovel 26 is installed on the mounting bracket 25; one end of the first connecting rod 22 is hinged to the rocker 24; the installation angles of the first connecting rods 22 of the two earth-shoveling mechanisms are staggered, and the lengths of the rockers 24 of the two earth-shoveling mechanisms are different. 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, 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 soil shovel 26 swings up and down to realize the operation of digging a pond for transplanting. 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 soil shovels 26 to swing alternately, and the two soil shovels 26 cooperate to complete the operation of digging a pond for one transplanting hole.

[0032] Specifically, an arc-shaped groove 30 for connecting the mounting bracket 25 is formed at one end of the rocker 24; a plurality of 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 installed with the rocker 24, and the installation position of the mounting bracket 25 with the arc-shaped groove 30 on the rocker 24, the installation angle of the rocker 24 can be adjusted, and thus the depth of pond digging can be adjusted.

[0033] Specifically, a connecting part 34 or a handle for connecting with a tractor is installed at the front end of the frame 1; support legs are installed at the lower end of the frame 1, and walking wheels are installed at the lower ends of the support legs.

[0034] Specifically, a driving sprocket 18 is installed at one end of the first rotating shaft 2; the driving sprocket 18 is connected to the driving component through a driving chain. The driving component can be a motor installed on the frame 1 and a sprocket installed on the motor; or it can be a rotatable sprocket installed on the tractor and a driving device capable of driving the sprocket to rotate.

[0035] Specifically, the support 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 wheels are 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, so that the pond digging depth can be adjusted. In this embodiment, bolts are used to tightly hold the plug rod 29. In another embodiment, a plurality of holes may be provided on the plug rod 29 and connected by bolts.

[0036] In another embodiment, all the sprockets can be replaced with belt pulleys, and the drive chain can be replaced with a synchronous belt.

[0037] The working principle of the present invention:

[0038] 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 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.

[0039] During operation, a traction device is used to tow the pond digging machine for crop transplanting forward, or the pond digging machine for crop transplanting is manually pushed forward. The drive sprocket 18 is driven to rotate by the drive assembly, 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 meshing teeth of the transmission part 5 and the groove 6, 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 by the drive chain 17, thereby driving the second rotating shaft 19 to rotate. The rotation of the second rotating shaft 19 can drive 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 earth digging and pond digging operation. 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.

[0040] The embodiments of the present invention have been described in detail above 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 principles and spirits of the present invention, various changes, modifications, substitutions, and variations to these embodiments still fall within the protection scope of the present invention.

Claims

1. A pond-drilling 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) through a second bearing (9); both ends of the first rotating shaft (2) are mounted in the inner cavity of the mounting portion (7) through 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 the side away from the first bearing seat (10); a sliding groove is provided in the middle of the first rotating shaft (2); the inner wall of the movable sleeve (4) is connected to a slider that slides with the sliding groove; both ends of the movable sleeve (4) are connected to a transmission portion (5); the inner wall of the groove (6) and the outer wall of the transmission portion (5) are provided with teeth that cooperate with each other; 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 a shoveling mechanism is mounted at both ends of the second rotating shaft (19); A sliding shaft (14) is movably mounted above the frame (1), and a shifting rod (13) is mounted on the sliding shaft (14); limiting rings (401) are provided on both sides of the movable sleeve (4); a semi-annular shifting portion (1301) is fixedly connected to one end of the shifting rod (13); a gap is provided between the shifting portion (1301) and the middle portion of the movable sleeve (4); Each set of the shoveling mechanisms comprises a rocker (24), a first connecting rod (22) connected to the second rotating shaft (19) at one end, and a second connecting rod (23) hinged to the frame (1) at one end; one end of the rocker (24) is hinged to one end of the second connecting rod (23), and the other end thereof is detachably mounted with a mounting frame (25); a shovel (26) is mounted on the mounting frame (25); one end of the first connecting rod (22) is hinged to the rocker (24); the installation 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; An arcuate groove (30) for connecting to the mounting frame (25) is provided at one end of the rocker (24); and a plurality of hinge holes are provided at one end of the second connecting rod (23) connected to the rocker (24).

2. The pond-digging machine for crop transplanting according to claim 1, characterized in that: A first vertical plate (11) and a second vertical plate (21) are fixedly connected above the first crossbeam (35) and the second crossbeam (36), respectively; the first bearing seat (10) and the second bearing seat (20) are respectively mounted on the first vertical plate (11) and the second vertical plate (21); and an opening groove (12) for passing through the first rotating shaft (2) and the second rotating shaft (19) is respectively provided on the first vertical plate (11) and the second vertical plate (21).

3. The pond-digging machine for crop transplanting according to claim 2, characterized in that: One side of each of the two first vertical plates (11) is fixedly connected to a sliding sleeve (15) that is 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 above the support plate (31); a strip groove (33) is formed at one end of the shift lever (32); 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).

4. The pond-digging machine for crop transplanting according to claim 1, characterized in that: The front end of the frame (1) is equipped with a connecting portion (34) or a handle for connecting to a tractor; the lower end of the frame (1) is equipped with a support leg, and the lower end of the support leg is equipped with a walking wheel.

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

6. The pond-digging machine for crop transplanting according to claim 4, characterized in that: The support leg comprises a support rod (27) fixed to the side wall of the frame (1), a sleeve rod (28) fixed 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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