Shallow groove placing device for Chinese yam planter
By designing a shallow-growing groove placement device, using the lower groove worm and extension sheet placement mechanism, combined with the vibration pressure block and vibrator of the vibration pressure module, the problem of unstable placement of shallow-growing grooves of the yam planter is solved, and a stable and reliable placement effect is achieved.
Patent Information
- Application Number
- CN202422277620.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-18
AI Technical Summary
When existing yam planters place shallow green grooves into the grooves, the problems of shallow green grooves being offset and stacking are not easy to separate, resulting in unstable placement.
A shallow groove placement device is designed, including a placement mechanism and a vibration pressure module. The placement mechanism ensures that the shallow groove falls smoothly to the preset position through the cooperation of the lower groove worm and the extension piece. The vibration pressure module further ensures the stable placement of shallow grooves in the groove through the vibration pressure block and vibrator.
The stable and reliable placement of shallow troughs is achieved, avoiding the problem of offset and stacking and difficult separation, and improving the working efficiency and stability of the yam planter.
Smart Images
Figure CN223025040U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of yam planting, in particular to a shallow groove placing device for a yam planter. Background Art
[0002] Traditional yams consume a large amount of manpower and material resources during the planting and harvesting processes. In order to reduce the physical consumption of planters, yam planters have emerged. Yam planters can automatically open trenches, place shallow grooves in the trenches, and then place yam seeds in the shallow grooves. However, existing yam planters directly release shallow grooves above the trenches, allowing the shallow grooves to fall into the trenches by their own weight. During the falling process of the shallow grooves, the shallow grooves are prone to deviation, resulting in the shallow grooves not falling to the preset positions in the trenches. Moreover, the stacked shallow grooves on the yam planter are not easily separated during falling, and it is easy to release multiple shallow grooves during placement. Summary of the Invention
[0003] In order to solve the above technical problems, the utility model provides a shallow groove placing device for a yam planter, in which the placing mechanism can release a single shallow groove, ensure that the shallow groove is stably placed at the preset position in the trench, and the shallow groove can be in full contact with the soil in the trench after being placed.
[0004] In order to solve the above problems, the utility model adopts the following technical solutions to achieve:
[0005] A shallow groove placing device for a yam planter of the utility model includes a frame. A placing module is provided on the frame. The placing module includes placing mechanisms symmetrically arranged on the left and right. The placing mechanism includes a placing plate located below the frame and a shallow groove group. A first opening vertically penetrating the placing plate is provided on the placing plate, and the first opening is used for the shallow groove group to pass through. The shallow groove group includes a plurality of shallow grooves stacked in sequence from top to bottom. The shallow groove includes a groove body and extension pieces symmetrically arranged on the left and right sides of the groove body. A plurality of lower groove worms are symmetrically arranged at the bottom of the placing plate on the left and right. A driving mechanism is provided on the frame, and the driving mechanism is used to drive the lower groove worms to rotate synchronously. The extension pieces on the left and right sides of the lower shallow groove in the shallow groove group extend into the spiral grooves of the corresponding lower groove worms on one side.
[0006] In this solution, when the placing mechanism works, the driving mechanism drives the lower groove worms to rotate synchronously. When the lower groove worms rotate, the extension pieces on the left and right sides of the shallow groove at the top of the lower groove worm extend into the spiral grooves of the corresponding lower groove worms on one side during the rotation of the lower groove worms. As the lower groove worms rotate, the spiral grooves of the lower groove worms squeeze and drive the extension pieces to move downward, and the extension pieces drive the groove body to move downward, so that the shallow groove at the bottom of the shallow groove group breaks away from the shallow groove group and moves downward until the shallow groove stably falls into the preset position in the trench opened by the yam planter.
[0007] Preferably, the placing mechanism further includes a limiting device, which includes a first limiting post group and a second limiting post group. The first limiting post group includes a plurality of first limiting posts symmetrically arranged on the front and rear sides of the first opening, and the second limiting post group includes a plurality of second limiting posts symmetrically arranged on the left and right sides of the first opening. The first limiting posts penetrate through the placing plate, and the second limiting posts penetrate through the placing plate. The first limiting posts are used to limit the front and rear sides of the shallow groove group, and the second limiting posts are used to limit the left and right sides of the shallow groove group. The shallow groove group does not contact the first opening.
[0008] Preferably, the machine frame is provided with a second opening corresponding to the position of the first opening. The second opening is located directly above the corresponding first opening and has the same size as the first opening. A plurality of mounting plates are provided at the top of the second opening. Positioning holes are symmetrically provided on the left and right sides of the mounting plates. The machine frame is provided with positioning posts corresponding to the positioning holes. The positioning posts are matched with the positioning holes. A plurality of guide posts are provided at the bottom of the mounting plate. The guide posts are arranged vertically. Guide holes are provided in the shallow groove corresponding to the positions of the guide posts. The guide posts pass through the corresponding guide holes.
[0009] The user first lifts the mounting plate upward, the positioning holes on the left and right sides of the mounting plate are disengaged from the corresponding positioning posts, and the mounting plate is removed from the second opening. Then, the shallow groove group is placed through the second opening. After being placed, the shallow groove group falls through the falling channel surrounded by the first limiting post group and the second limiting post group to above the lower groove worm and is located at the first opening. The extension pieces at both ends of the lowermost shallow groove in the shallow groove group are in contact with the top of the spiral groove in the corresponding lower groove worm on one side. Then, the positioning holes at the bottom of the mounting plate are aligned with the positioning posts on the machine frame, and the mounting plate is vertically lowered so that the positioning posts pass through the corresponding positioning holes. At this time, the mounting plate is re-placed at the second opening, and the guide posts pass through the corresponding guide holes, playing a guiding role for the shallow groove during the falling process of the shallow groove. When excessive water is poured into the shallow groove, the excess water can be discharged outward through the guide holes at the bottom of the shallow groove.
[0010] Preferably, a vibration and pressing module is further provided on the machine frame. The vibration and pressing module is located at the rear side of the placing module. The vibration and pressing module includes vibration and pressing mechanisms symmetrically arranged on the left and right. The vibration and pressing mechanisms correspond to the placing mechanisms one by one. The vibration and pressing mechanism includes a vibration and pressing block and a vibration and pressing block driving device. The vibration and pressing block is used to press down the groove body, and the vibration and pressing block driving device is used to drive the vibration and pressing block to rise / fall.
[0011] Preferably, an inner cavity is provided in the vibration and pressing block, and a plurality of vibrators are arranged at equal intervals along the extending direction of the vibration and pressing block at the bottom of the inner cavity.
[0012] Preferably, the vibration and pressing block driving device includes a connecting rod driving device and a vertically arranged vibration and pressing block connecting rod. A connecting piece is provided at the rear side of the frame. A connecting rod guiding hole is provided on the connecting piece. The upper part of the vibration and pressing block connecting rod vertically passes through the connecting rod guiding hole. A pressing block is arranged at the top of the vibration and pressing block connecting rod. A return spring is sleeved on the upper part of the vibration and pressing block connecting rod. The return spring is located between the connecting piece and the pressing block. The connecting rod driving device includes a cam driving device and a cam. The cam is vertically arranged on the top of the pressing block. The cam driving device is used to drive the cam to rotate.
[0013] After the yam planter places the shallow cultivation grooves through the placement mechanism, the yam planter moves forward, so that the vibration and pressing block in the vibration and pressing mechanism moves to directly above the corresponding shallow cultivation groove on one side. Subsequently, the cam driving device drives the corresponding cam to rotate, so that the protruding part of the cam presses down the pressing block on the corresponding side. The pressing block drives the corresponding vibration and pressing block connecting rod to move downward, and then drives the vibration and pressing block on the corresponding side to move downward in sequence, so that the vibration and pressing block presses the corresponding shallow cultivation groove. When the vibration and pressing block contacts the corresponding shallow cultivation groove, the vibrator in the vibration and pressing block vibrates, strengthening the downward pressure of the vibration and pressing block on the shallow cultivation groove, ensuring that the shallow cultivation groove is stably and reliably placed in the groove.
[0014] Preferably, the cross-section of the groove body is an arc protruding downward, the cross-section of the vibration and pressing block is semi-circular, and the cross-section of the groove body is larger than the cross-section of the vibration and pressing block.
[0015] Preferably, the driving mechanism includes a driving device. A transmission rod is arranged at the top of the lower groove worm. The transmission rod is coaxial with the lower groove worm. The transmission rod penetrates through the placement plate and is rotationally connected to the frame. The driving device is used to drive the transmission rod to rotate synchronously.
[0016] Preferably, the driving device includes a driving motor arranged on the top of the frame. The output end of the driving motor vertically penetrates through the frame. A driving rod is coaxially arranged at the output end of the driving motor. A driving wheel is coaxially arranged on the driving rod. A driven wheel is coaxially arranged on the transmission rod. The driving wheel is power-connected to the driven wheel through a transmission belt. The driving rod is located at the rear side of the first opening.
[0017] Preferably, the extending direction of the extending piece is the same as the extending direction of the groove body.
[0018] The beneficial effects of the present utility model are as follows: The placement mechanism can separate the shallow cultivation groove group and place the separated single shallow cultivation groove at a preset position in the groove; the vibration and pressing module can vibrate and press down the shallow cultivation groove located in the groove, ensuring that the shallow cultivation groove is stably and reliably placed in the groove. Description of the Drawings
[0019] Figure 1 is the structural schematic diagram of the present utility model;
[0020] Figure 2 It is a schematic structural view of the placement module in the present utility model from one perspective;
[0021] Figure 3 It is a schematic structural view of the placement module in the present utility model from another perspective;
[0022] Figure 4 It is a schematic structural view of the vibration and pressing mechanism in the present utility model;
[0023] Figure 5 It is an exploded view of the vibration and pressing mechanism in the present utility model;
[0024] Figure 6 It is a schematic structural view of the shallow planting groove in the present utility model.
[0025] In the figure: 1, frame; 2, placement mechanism; 21, placement plate; 22, shallow planting groove group; 221, shallow planting groove; 222, groove body; 223, extension piece; 23, lower groove worm; 231, spiral groove; 3, drive mechanism; 31, drive device; 311, drive motor; 312, drive rod; 32, transmission rod; 4, limiting device; 41, first limiting column group; 411, first limiting column; 42, second limiting column group; 421, second limiting column; 5, second opening; 51, mounting piece; 52, positioning column; 53, guiding column; 54, guiding hole; 6, vibration and pressing mechanism; 61, vibration and pressing block; 611, vibrator; 62, vibration and pressing block drive device; 63, vibration and pressing block connecting rod; 631, pressing block; 64, connecting rod drive device; 641, cam; 642, cam drive device; 65, connecting piece; 7, drive wheel; 71, driven wheel; 72, transmission belt; 8, return spring; 9, first opening. Specific embodiments
[0026] The following is a further specific description of the technical solution of the present utility model through embodiments and in conjunction with the drawings.
[0027] Embodiment: A shallow planting groove placement device for a yam planter in this embodiment, as Figures 1 to 6As shown in the figure, it includes a frame 1. A placement module is provided on the frame 1. The placement module includes placement mechanisms 2 arranged symmetrically left and right. The placement mechanism 2 includes a placement plate 21 located below the frame and a shallow cultivation groove group 22. A first opening 9 vertically penetrating the placement plate 21 is provided on the placement plate 21 for the shallow cultivation groove group 22 to pass through. The shallow cultivation groove group 22 includes a plurality of shallow cultivation grooves 221 stacked in sequence from top to bottom. The shallow cultivation groove 221 includes a groove body 222 and extension pieces 223 symmetrically arranged on both sides of the groove body 222. Two lower groove worms 23 are symmetrically arranged at the bottom of the placement plate 21 on the left and right. A driving mechanism 3 is provided on the frame 1 for driving the lower groove worms 23 to rotate synchronously. The extension pieces 223 on both sides of the shallow cultivation groove 221 at the lower part of the shallow cultivation groove group 22 extend into the spiral grooves 231 of the corresponding lower groove worm 23 on one side.
[0028] The placement mechanism 2 further includes a limiting device 4. The limiting device includes a first limiting post group 41 and a second limiting post group 42. The first limiting post group 41 includes two first limiting posts 411 symmetrically arranged on the front and rear sides of the first opening 9. The second limiting post group 42 includes two second limiting posts 421 symmetrically arranged on the left and right sides of the first opening 9. The shallow cultivation groove group 22 does not contact the first opening 9. The first limiting post 411 penetrates the placement plate 21, and the second limiting post 421 penetrates the placement plate 21.
[0029] A second opening 5 is provided on the frame 1 corresponding to the position of the first opening 9. The second opening 5 is located directly above the corresponding first opening 9 and has the same size as the first opening 9. Two mounting pieces 51 are provided at the top of the second opening 5. Positioning holes are symmetrically arranged on the left and right sides of the mounting pieces 51. Positioning posts 52 are provided on the frame 1 corresponding to the positioning holes. The positioning posts 52 match the positioning holes. Two guiding posts 53 are provided at the bottom of the mounting pieces 51. The guiding posts 53 are vertically arranged. Guiding holes 54 are provided on the shallow cultivation groove 221 corresponding to the positions of the guiding posts 53. The guiding posts 53 pass through the corresponding guiding holes 54.
[0030] A vibration and pressing module is also provided on the frame 1. The vibration and pressing module is located at the rear side of the placement module. The vibration and pressing module includes vibration and pressing mechanisms 6 arranged symmetrically left and right. The vibration and pressing mechanisms 6 correspond to the placement mechanisms 2 one by one. The vibration and pressing mechanism 6 includes a vibration and pressing block 61 and a vibration and pressing block driving device 62. The vibration and pressing block 61 is used to press down the groove body 222, and the vibration and pressing block driving device 62 is used to drive the vibration and pressing block 61 to rise / fall. An inner cavity is provided in the vibration and pressing block 61. Three vibrators 611 are equidistantly arranged at the bottom of the inner cavity along the extending direction of the vibration and pressing block 61.
[0031] The vibration and pressing block driving device 62 includes a connecting rod driving device 64 and a vertically arranged vibration and pressing block connecting rod 63. A connecting piece 65 is provided at the rear side of the frame 1, and a connecting rod guiding hole is provided on the connecting piece 65. The upper part of the vibration and pressing block connecting rod 63 vertically passes through the connecting rod guiding hole. A pressing block 631 is provided at the top of the vibration and pressing block connecting rod 63. A return spring 8 is sleeved on the upper part of the vibration and pressing block connecting rod 63, and the return spring 8 is located between the connecting piece 65 and the pressing block 631. The connecting rod driving device 64 includes a cam driving device 642 and a cam 641, and the cam 641 is vertically arranged at the top of the pressing block 631.
[0032] The cross-section of the trough body 222 is in an arc shape protruding downward, and the cross-section of the vibration and pressing block 61 is semi-circular. The cross-section of the trough body 222 is larger than the cross-section of the vibration and pressing block 61. The driving mechanism 3 includes a driving device 31. A transmission rod 32 is provided at the top of the lower trough worm 23. The transmission rod 32 is coaxial with the lower trough worm 23. The transmission rod 32 penetrates through the placing plate 21 and is rotatably connected to the frame 1.
[0033] The driving device 31 includes a driving motor 311 arranged at the top of the frame 1. The output end of the driving motor 311 vertically penetrates through the frame 1. A driving rod 312 is coaxially arranged at the output end of the driving motor 311. A driving wheel 7 is coaxially arranged on the driving rod 312. A driven wheel 71 is coaxially arranged on the transmission rod 32. The driving wheel 7 is power-connected to the driven wheel 71 through a transmission belt 72. The driving rod 312 is located at the rear side of the first opening 9. The extending direction of the extension piece 223 is the same as the extending direction of the trough body 222.
[0034] In this solution, the user first lifts the installation piece upward, the positioning holes on the left and right sides of the installation piece are disengaged from the corresponding positioning posts, the installation piece is removed from the second opening, and then the shallow groove group is placed through the second opening. After being placed, the shallow groove group falls through the falling channel formed by the first limiting post group and the second limiting post group to the upper side of the lower trough worm and is located at the first opening. The extension pieces at both ends of the lowermost shallow groove in the shallow groove group are in contact with the top of the spiral groove in the corresponding lower trough worm on one side. Then, the positioning holes at the bottom of the installation piece are aligned with the positioning posts on the frame, and the installation piece is vertically lowered so that the positioning posts pass through the corresponding positioning holes. At this time, the installation piece is re-placed at the second opening, and the guiding posts pass through the corresponding guiding holes, playing a guiding role for the shallow grooves during the falling process of the shallow grooves.
[0035] When the placement mechanism is working, the output end of the driving motor in the driving device drives the driving rod to rotate synchronously, and the driving rod drives the driving wheel to rotate. The driving wheel drives the driven wheel to rotate through the transmission belt to make the four lower groove worms in the placement mechanism rotate synchronously. When the lower groove worm rotates, the extension pieces on the left and right sides of the shallow groove located at the top of the four lower groove worms extend into the spiral groove of the lower groove worm on the corresponding side. As the lower groove worm rotates, the shallow groove located at the bottom of the shallow groove group separates from the shallow groove group, and under the guidance of the guide column, it falls along the falling channel surrounded by the first limiting column group and the second limiting column group on the corresponding side to the preset position in the groove opened by the yam planting machine, completing the placement of the two shallow grooves on the left and right sides.
[0036] After the yam planting machine places the shallow groove through the placement mechanism, the yam planting machine moves forward, so that the vibration and pressure block in the vibration and pressure mechanism moves to the top of the shallow groove on the corresponding side, and then the cam driving device drives the corresponding cam to rotate, so that the protrusion of the cam presses down the pressure block on the corresponding side, and the pressure block drives the corresponding vibration and pressure block connecting rod to move downward, which in turn drives the vibration and pressure block on the corresponding side to move downward, so that the vibration and pressure block squeezes the shallow groove on the corresponding side. When the vibration and pressure block contacts the shallow groove on the corresponding side, the vibrator in the vibration and pressure block vibrates, which strengthens the downward pressure of the vibration and pressure block on the shallow groove, ensuring that the shallow groove is placed stably and reliably in the groove.
[0037] After the vibration pressure block is pressed down, the cam continues to rotate, and the protrusion of the cam no longer presses the pressure block downward. The vibration pressure block connecting rod moves upward under the action of the reset spring, driving the vibration pressure block to rise until the vibration pressure block is reset.
[0038] When the shallow growing trough is overwatered, the excess water can be discharged outward through the guide holes at the bottom of the shallow growing trough.
Claims
1. A shallow trough placement device for a yam planting machine, characterized in that: The invention comprises a frame (1), wherein a placement module is provided on the frame (1), wherein the placement module comprises a placement mechanism (2) arranged symmetrically on the left and right, wherein the placement mechanism (2) comprises a placement plate (21) located below the frame and a shallow groove group (22), wherein the placement plate (21) is provided with a first opening (9) vertically penetrating the placement plate (21), wherein the first opening (9) is used for allowing the shallow groove group (22) to pass through, wherein the shallow groove group (22) comprises a plurality of shallow grooves (221) stacked in sequence from top to bottom, wherein the shallow groove group (22) is provided with ... first opening (9) vertically penetrating the placement plate (21), wherein the shallow groove group (22) is provided with a first opening (9) vertically penetrating the placement plate (21), wherein the shallow groove group (22) is provided with a first opening (9) vertically penetrating the placement plate (21), wherein the first opening (9) is used for allowing the shallow groove group (22) to pass through the shallow groove group (22), wherein the shallow groove group (22) is provided with a plurality of shallow grooves (221) stacked in sequence from top to bottom, wherein the shallow groove group (22) is provided with a plurality of shallow grooves (221) stacked in sequence from top to bottom, wherein the shallow groove group (22) is provided with The groove (221) comprises a groove body (222) and extension pieces (223) symmetrically arranged on both sides of the groove body (222); a plurality of lower groove worm gears (23) are symmetrically arranged on the bottom of the placement plate (21); a driving mechanism (3) is arranged on the frame (1); the driving mechanism (3) is used to drive the lower groove worm gears (23) to rotate synchronously; the extension pieces (223) on the left and right sides of the shallow groove (221) at the bottom of the shallow groove group (22) extend into the spiral groove (231) of the lower groove worm gear (23) on the corresponding side.
2. A shallow trough placement device for a yam planting machine according to claim 1, characterized in that: The placement mechanism (2) further comprises a limiting device (4), the limiting device comprising a first limiting column group (41) and a second limiting column group (42), the first limiting column group (41) comprising a plurality of first limiting columns (411) symmetrically arranged on the front and rear sides of the first opening (9), the second limiting column group (42) comprising a plurality of second limiting columns (421) symmetrically arranged on the left and right sides of the first opening (9), the first limiting columns (411) passing through the placement plate (21), the second limiting columns (421) passing through the placement plate (21), the first limiting columns (411) being used to limit the front and rear sides of the shallow groove group (22), the second limiting columns (421) being used to limit the left and right sides of the shallow groove group (22), the shallow groove group (22) not being in contact with the first opening (9).
3. A shallow trough placement device for a yam planting machine according to claim 2, characterized in that: The frame (1) is provided with a second opening (5) at a position corresponding to the first opening (9); the second opening (5) is located directly above the first opening (9) and has the same size as the first opening (9); a plurality of mounting plates (51) are provided at the top of the second opening (5); positioning holes are symmetrically provided on the left and right sides of the mounting plates (51); positioning columns (52) are provided at positions corresponding to the positioning holes of the frame (1); the positioning columns (52) match the positioning holes; a plurality of guide columns (53) are provided at the bottom of the mounting plates (51); the guide columns (53) are vertically arranged; guide holes (54) are provided at positions corresponding to the guide columns (53) of the shallow grooves (221); the guide columns (53) pass through the corresponding guide holes (54).
4. The shallow trough placement device for a yam planting machine according to claim 1, characterized in that: The frame (1) is also provided with a vibration and pressure module, the vibration and pressure module is located at the rear side of the placement module, the vibration and pressure module comprises a vibration and pressure mechanism (6) arranged symmetrically on the left and right, the vibration and pressure mechanism (6) corresponds one to one with the placement mechanism (2), the vibration and pressure mechanism (6) comprises a vibration and pressure block (61) and a vibration and pressure block driving device (62), the vibration and pressure block (61) is used to press down the trough body (222), and the vibration and pressure block driving device (62) is used to drive the vibration and pressure block (61) to rise / fall.
5. The shallow groove placement device for a yam planting machine according to claim 4, characterized in that: An inner cavity is provided in the vibration pressure block (61), and a plurality of vibrators (611) are arranged at equal intervals at the bottom of the inner cavity along the extension direction of the vibration pressure block (61).
6. A shallow trough placement device for a yam planting machine according to claim 4, characterized in that: The vibration block driving device (62) comprises a connecting rod driving device (64) and a vertically arranged vibration block connecting rod (63); a connecting plate (65) is provided on the rear side of the frame (1); a connecting rod guide hole is provided on the connecting plate (65); the upper part of the vibration block connecting rod (63) vertically passes through the connecting rod guide hole; a pressure block (631) is provided on the top of the vibration block connecting rod (63); a return spring (8) is sleeved on the upper part of the vibration block connecting rod (63); the return spring (8) is located between the connecting plate (65) and the pressure block (631); the connecting rod driving device (64) comprises a cam driving device (642) and a cam (641); the cam (641) is vertically arranged on the top of the pressure block (631); the cam driving device (642) is used to drive the cam (641) to rotate.
7. The shallow groove placement device for a yam planting machine according to claim 4, characterized in that: The cross section of the groove body (222) is in the shape of an arc convex downwards, the cross section of the vibration and pressure block (61) is in the shape of a semicircle, and the cross section of the groove body (222) is larger than the cross section of the vibration and pressure block (61).
8. The shallow trough placement device for a yam planting machine according to claim 1, characterized in that: The driving mechanism (3) comprises a driving device (31), a transmission rod (32) is arranged on the top of the lower groove worm gear (23), the transmission rod (32) is coaxial with the lower groove worm gear (23), the transmission rod (32) passes through the placement plate (21) and is rotatably connected to the frame (1), and the driving device (31) is used to drive the transmission rod (32) to rotate synchronously.
9. The shallow groove placement device for a yam planting machine according to claim 8, characterized in that: The driving device (31) comprises a driving motor (311) arranged on the top of the frame (1); the output end of the driving motor (311) vertically penetrates the frame (1); a driving rod (312) is coaxially arranged on the output end of the driving motor (311); a driving wheel (7) is coaxially arranged on the driving rod (312); a driven wheel (71) is coaxially arranged on the transmission rod (32); the driving wheel (7) is connected to the driven wheel (71) by power through a transmission belt (72); and the driving rod (312) is located at the rear side of the first opening (9).
10. The shallow groove placement device for a yam planting machine according to claim 1, characterized in that: The extending direction of the extending piece (223) is consistent with the extending direction of the groove body (222).