Opening and closing control mechanism of potato direct insertion type dibbler

Abstract

The utility model relates to the technical field of seeding equipment, in particular to an on-off control mechanism for a potato direct insertion type dibbler. A chain transmission component and a dibbler on-off control device are arranged on a middle bearing seat of the dibbling wheel, the driving land wheel drives the chain transmission component, and the chain transmission component drives the dibbler on-off control device to work; the potato seed tubers are guided into a dibbler opening and closing control device for dibbling; according to the structure, sowing of potato tubers is effectively controlled in a hole sowing fixed-point opening mode, the controllability of seed metering and hole sowing of tuber crops is improved to the maximum extent, and the sowing uniformity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sowing equipment, in particular to an opening and closing control mechanism of a potato direct-insertion hole sower. Background Art

[0002] Disclosed prior art CN201721245377.9 The utility model discloses a novel vegetable hole seeder for vegetable planting, whose structure includes a support plate, a screen, a seed feeding bin, a main frame, a hole seeder head, a hole seeder feeding wheel, a rotating shaft, fixing bolts, a covering wheel, a wheel frame, a hole seeder wheel frame, and a movable connecting pipe. The movable connecting pipe is movably connected to the screen and the hole seeder feeding wheel and adopts a transition fit. The hole seeder feeding wheel is movably connected to the hole seeder wheel frame through a rotating shaft, and the covering wheel is connected to the wheel frame through fixing bolts. The above utility model is a novel vegetable hole seeder for vegetable planting, and the hole seeder feeding wheel is movably connected to the hole seeder wheel frame through a rotating shaft. The hole seeder feeding wheel pin drives the hole seeder feeding tray and the hole seeder rotating tray to rotate; according to the change of gravitational potential energy, the feeding port can take materials evenly, and can automatically and evenly feed and sow in equal amounts, which is beneficial to the uniform layout of vegetable seeds at the same sowing place and beneficial to growth. However, there is no hole-planting auxiliary mechanism developed specifically for seed potatoes on the market. The utility model is developed to address the above technical gap.

[0003] In addition, vegetable and grain seeds are granular, and the hole sowing process only needs to pay attention to the opening size of the movable mouth and the fixed mouth. The granular seeds will slide naturally along the opening, and the granular seed hole sowing can be successfully completed. However, potato hole sowing is tuberous. Compared with granular seeds, tuberous potatoes are very easy to get blocked at the movable mouth of the hole sowing device. In order to avoid blockage during potato sowing, the existing hole sowing devices often adopt the method of increasing the volume of the hole sowing device and increasing the opening of the movable mouth of the hole sowing device. However, the above operations will increase the resistance to entering the soil and the overall operation resistance of the machine. At the same time, if the volume of the hole sowing device is increased and the opening of the movable mouth of the hole sowing device is increased, the potatoes will accumulate in the hole sowing device. When the hole sowing device is closed, the accumulated potatoes will be squeezed and squeezed out, causing the potatoes to break and squeeze out juice. The juice and soil are mixed and adhered to the end of the hole sowing device. After a period of use, it needs to be cleaned, which cannot effectively solve the potato hole sowing operation. Therefore, this case develops a potato hole sowing machine to address the above technical deficiencies. Utility Model Content

[0004] The utility model solves the shortcomings of the prior art and provides an opening and closing control mechanism for a potato direct-insertion hole planter with smooth feeding, low breakage rate and low running resistance.

[0005] The utility model solves the technical problem by adopting the following technical solutions:

[0006] The potato direct-insertion hole seeder opening and closing control mechanism comprises a frame, a planting depth adjustment ground wheel, a driving ground wheel, a chain transmission component and a hole seeder opening and closing control device; the frame comprises a front crossbeam, a rear crossbeam and a longitudinal beam; the front crossbeam, the rear crossbeam and the longitudinal beam form a frame structure, the front crossbeam is provided with a traction hanging plate, the rear crossbeam is provided with a seat, the longitudinal beam is provided with a ground wheel bearing seat, a hole seeder wheel middle bearing seat, a bearing seat and a planting depth adjustment ground wheel seat, the ground wheel bearing seat is provided with a driving ground, the hole seeder wheel middle bearing seat is provided with a chain transmission component and a hole seeder opening and closing control device, the driving ground wheel drives the chain transmission component, and the chain transmission component drives the hole seeder opening and closing control device to work; the potato seed blocks are introduced into the hole seeder opening and closing control device for hole seeder; the above-mentioned structure of the utility model effectively controls the sowing of potato tubers by controlling the seeding and the hole sowing fixed-point opening, maximizes the controllability of the seeding and hole sowing of tuberous crops, and improves the sowing uniformity.

[0007] The hole-seeking device opening and closing control device comprises a fixed hole-seeking device, a movable hole-seeking device, a support ring, a crank shaft I, a support shaft, a side crossbeam, an intermediate crossbeam, a movable mouth opening rod, a movable mouth closing rod, a rod bearing, a reset winding spring, a gear pair, a cylindrical spring, a spring limit pull rod, a switch rod seat, a pin shaft, a movable mouth switch control rod, a control rod seat, and a roller. Two fixed hole-seeking devices are respectively arranged on the left and right sides of the intermediate crossbeam, and a side crossbeam and a support shaft are arranged on the other side of the fixed hole-seeking device to form a hole-seeking assembly. This structure adopts a single-axis double-component operation mode, and the overall machine operation is more stable, and the opening state of the hole-seeking device is not easily affected by angle tilt. The hole-making assembly is connected to the rotating disk through a supporting shaft, and a plurality of hole-making assemblies are arranged on the rotating disk. The rotation of the rotating disk drives the hole-making assembly to work. The fixed nozzle of the hole-making device is hinged with the moving nozzle of the hole-making device through a moving nozzle pin shaft. The fixed nozzle of the hole-making device and the moving nozzle of the hole-making device are respectively provided with spring seats, and a cylindrical spring and a spring limit pull rod are installed between the spring seats to form a resetting mechanism for the moving nozzle of the hole-making device; the fixed nozzle of the hole-making device and the moving nozzle of the hole-making device are kept in a closed state under the action of the cylindrical spring; a control rod seat is arranged between the two moving nozzles of the hole-making device, and the control rod seat connects the two moving nozzles of the hole-making device into one body, and a moving nozzle switch control rod is arranged on the control rod seat, and a switch rod seat is arranged on the middle crossbeam. The switch rod seat is movably connected to one end of the moving nozzle opening rod and the moving nozzle closing rod through a pin shaft, and the moving nozzle opening rod and the moving nozzle closing rod are connected to the opening rod and the closing rod of the moving nozzle. A gear pair is provided at the connection of the closing rod seat, and the movable mouth opening rod and the movable mouth closing rod are meshed and rotated through the gear pair. A rod bearing is provided at the other end of the movable mouth opening rod, and a roller is provided on the movable mouth closing rod. The roller fits and slides with the movable mouth switch control rod, and the roller moves with the movable mouth closing rod. The roller pushes the movable mouth switch control rod, and the movable mouth switch control rod then pushes the control rod seat, and the control rod seat drives the movable mouth of the hole former to open and close; the movable mouth opening guide rail is arc-shaped, and the rod bearing of the movable mouth opening rod fits with the movable mouth opening guide rail, and the rod bearing slides along the surface of the arc-shaped movable mouth opening guide rail, so that the movable mouth opening rod rotates along the pin shaft, and synchronously drives the movable mouth closing rod to rotate through the gear pair, and a reset winding spring is provided on the switch rod seat, and the reset winding spring is connected with the movable mouth closing rod to form a movable mouth closing rod reset mechanism. The precise opening of the moving mouth is achieved through the limited opening function of the arc-shaped moving mouth opening guide rail. The maximum opening and closing is achieved when the arc-shaped moving mouth opening guide rail reaches the uppermost end. During the movement, hole sowing holes are gradually opened. At the same time, the hole sowing components of the corresponding group are also lifted to a certain height, which ensures effective and smooth sowing.

[0008] Furthermore, the longitudinal beam is also provided with a control disk support wheel fixing seat, and the control disk support wheel fixing seat is also connected to a direct insertion mechanism of a seed drill, which includes a control wheel, an auxiliary plate and a support wheel, the control wheel is connected to a rotating disk through an auxiliary plate, the control wheel and the rotating disk are eccentrically arranged, and it is easy for the movable nozzle and the fixed nozzle to penetrate into the land for seeding, the control wheel is provided with a track groove, a crank shaft hole and a support wheel shaft hole, a crank shaft II is provided at both ends of the auxiliary plate, a crank is provided in the middle of the auxiliary plate, the crank shaft II is connected to the track groove, the crank is movably connected to the crank shaft hole through a crank bearing, and a support bearing is provided on the support wheel shaft hole, and the support bearing is clamped on the outer edge of the support wheel circumference. Effective double limit ensures the coordinated operation of vertical seeding and fixed-point opening of the movable nozzle.

[0009] Furthermore, the control wheel is provided with 6 track grooves, 3 crankshaft holes and 3 support wheel shaft holes, and 3 auxiliary plates are provided. The two ends of each auxiliary plate are respectively connected to two groups of hole sowing components, and each auxiliary plate is hung on two adjacent track grooves. The component assembly is realized, the regularity of the machine is improved, and the subsequent operation smoothness is also easy. The track groove is composed of a control edge and a reset edge. The control edge is a straight line, and the reset edge is an arc. The crankshaft II slides along the track groove. When sowing in holes, it goes deep into the plot to control the fit and locking. After sowing in holes, there is a reset space in the lifting process to prevent the machine from being damaged by impact.

[0010] Furthermore, the fixed and movable nozzles of the hole former are in the shape of a semiconical surface, and the tips of the fixed and movable nozzles of the hole former are cut off. It is easy to make a large hole on the plot for hole sowing, which is convenient for potato tubers to fall and sow. This point requires the joint operation of the hole sowing device direct insertion mechanism and the hole sowing device opening and closing control device in the present structure to be effectively completed. Even if the fixed and movable nozzles of the hole sowing device of the traditional hole sowing equipment are cut off, because there is no limit and fixed point opening function, cutting off the tip will increase the running resistance of the machine.

[0011] The beneficial effects of the utility model are:

[0012] 1. The utility model adds a start-and-close control device for the hole sower. A plurality of hole sower components are arranged on the rotating disk. The initial state of the hole sower is that the movable mouth is normally closed, which is convenient for the fixed mouth and movable mouth of the hole sower to be inserted into the plot. The movable mouth opening rod and the movable mouth closing rod are engaged and rotated through a gear pair to open the plot, which is convenient for the hole sowing of tuberous potatoes. At the same time, the rod bearing slides along the arc-shaped movable mouth opening guide surface, so that the movable mouth opening rod rotates along the pin shaft, effectively positioning the opening mouth. A cylindrical spring and a spring limit pull rod are installed between the spring seats to form a reset mechanism for the movable mouth of the hole sower. The size of the movable mouth opening is controlled by the length of the cylindrical spring and the spring limit pull rod. The above structure is exquisite and easy to manufacture. It can be conveniently and accurately adjusted to the required sowing amount and corresponding plant spacing according to different types or varieties of sowing crops. It effectively solves the technical problem of potato hole sowing blockage.

[0013] 2. Add a direct insertion mechanism for the hole seeder to ensure that the hole seeder always remains in a vertical downward position. Under the action of the control wheel crank, the hole seeder direct insertion control wheel and the seed potato hole seeder device rotate synchronously around the support, and the crank shaft of the hole seeder device is doubly constrained by the support wheel and the direct insertion control wheel. As the direct insertion control wheel rotates, the position of the track groove relative to the center of the support shaft also changes continuously. When the hole seeder is inserted into the soil and leaves the ground, the position of the track groove relative to the center of the seed potato hole seeder device axis changes continuously, and the crank shaft of the hole seeder device continuously moves along the control edge of the track groove to continuously adjust the vertical downward posture of the hole seeder.

[0014] The utility model uses a chain transmission component to rotate the seed lifting shaft sprocket and the seed drill support sprocket together, and the seed potato scoop takes the seeds and puts the seed potatoes into the seed drill of the seed drill. The seed drill is vertically inserted into the soil to a specified depth, and a seed bed pit is formed in the soil. The seed drill rotates continuously, and the seed drill moves vertically upward. The fixed and movable mouths of the seed drill gradually open under the action of the movable mouth spring. When the opening of the movable mouth is larger than the seed potatoes, the seed potatoes are discharged from the seed drill and fall into the soil. The seed drill moves upward continuously, and the opening becomes larger and larger. When the opening is the largest, the seed drill leaves the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure diagram of the opening and closing control device of the seed drill Figure Ⅰ ;

[0016] Figure 2 The structure diagram of the opening and closing control device of the seed drill Figure II ;

[0017] Figure 3 This is a schematic diagram of the opening state of the hole-seeding device opening and closing control device;

[0018] Figure 4 This is a schematic diagram of the closed state of the hole-seeding device opening and closing control device;

[0019] Figure 5 The structure diagram of the direct insertion mechanism of the seed drill Figure Ⅰ ;

[0020] Figure 6 The structure diagram of the direct insertion mechanism of the seed drill Figure II ;

[0021] Figure 7 It is a schematic diagram of the rack structure;

[0022] Figure 8 Schematic diagram of the combination of the rotating disk and the hole seeding component Figure Ⅰ ;

[0023] Fig. 9 Schematic diagram of the combination of the rotating disk and the hole seeding component Figure II ;

[0024] Fig.10This is a schematic diagram of the hole sowing limit of the direct insertion mechanism of the hole sowing device;

[0025] Fig.11 is a schematic diagram of the structure of the control wheel;

[0026] Fig.12 A working diagram of the guide rail for opening the moving mouth;

[0027] Fig.13 It is a schematic diagram of the structure of the guide rail for opening the movable nozzle;

[0028] In the figure: frame 1, sowing depth adjustment ground wheel 2, driving ground wheel 3, chain transmission component 4, hole sowing device opening and closing control device 6, hole sowing device direct insertion mechanism 7, three-point suspension frame 8, seat 9;

[0029] Front crossbeam 101, rear crossbeam 102, longitudinal beam 103, traction connecting plate 104, ground wheel bearing seat 105, hole broadcast wheel middle bearing seat 106, bearing seat 107, control plate support wheel fixing seat 108, broadcast depth adjustment ground wheel seat 109;

[0030] A fixed hole-forming device mouth 601, a movable hole-forming device mouth 602, a support ring 603, a crank shaft I 604, a support shaft 605, a side beam 606, an intermediate beam 607, a movable mouth opening rod 608, a movable mouth closing rod 609, a rod bearing 610, a reset coil spring 611, a gear pair 612, a cylindrical spring 613, a spring limit pull rod 614, a switch rod seat 615, a pin 616, a movable mouth switch control rod 617, a control rod seat 618, a roller 619, a seed potato placing control rod 620, a limit pin 621, a spring seat 622, a movable mouth pin 624, a movable mouth opening guide rail 625, and a rotating disk 626;

[0031] Control wheel 701 , track groove 702 , crank shaft hole 703 , crank bearing 704 , crank 705 , control edge 706 , reset edge 707 , crank shaft II 708 , auxiliary plate 709 , support bearing 710 , support wheel 711 , support wheel shaft hole 712 . DETAILED DESCRIPTION

[0032] The potato direct-insertion hole-seeding device opening and closing control mechanism comprises a frame 1, a sowing depth adjustment ground wheel 2, a driving ground wheel 3, a chain transmission component 4 and a hole-seeding device opening and closing control device 6; the frame 1 comprises a front crossbeam 101, a rear crossbeam 102 and a longitudinal beam 103; the front crossbeam 101, the rear crossbeam 102 and the longitudinal beam 103 form a frame structure, the front crossbeam 101 is provided with a traction and mounting plate 104, the rear crossbeam 102 is provided with a seat 9, the longitudinal beam 103 is provided with a ground wheel bearing seat 105, a hole-seeding wheel middle bearing seat 106, a bearing seat 107 and a sowing depth adjustment ground wheel seat 109, the ground wheel bearing seat 105 is provided with a driving ground wheel 3, the hole-seeding wheel middle bearing seat 106 is provided with a chain transmission component 4 and a hole-seeding device opening and closing control device 6, the driving ground wheel 3 drives the chain transmission component 4, and the chain transmission component 4 drives the hole-seeding device opening and closing control device 6 to work; the potato seed blocks are introduced into the hole-seeding device opening and closing control device 6 for hole-seeding;

[0033] The hole sowing device opening and closing control device 6 comprises a hole forming device fixed nozzle 601, a hole forming device movable nozzle 602, a support ring 603, a crank shaft I 604, a support shaft 605, a side beam 606, an intermediate beam 607, a movable nozzle opening rod 608, a movable nozzle closing rod 609, a rod bearing 610, a reset coil spring 611, a gear pair 612, a cylindrical spring 613, a spring limit pull rod 614, a switch rod seat 615, a pin 616, a movable nozzle switch control rod 617, a control rod seat 618, and a roller 619. Two hole forming device fixed nozzles 601 are respectively arranged on the left and right sides of the intermediate beam 607, and a side beam 60 is arranged on the other side of the hole forming device fixed nozzle 601. 6 and the support shaft 605 form a hole sowing assembly, which is connected to the rotating disk 626 through the crank shaft I 604 and the support shaft 605. The rotating disk 626 is provided with multiple groups of hole sowing assemblies, and the rotating disk 626 rotates to drive the hole sowing assembly to work. The fixed nozzle 601 of the hole former is hinged with the movable nozzle 602 of the hole former through the movable nozzle pin 624. The fixed nozzle 601 of the hole former and the movable nozzle 602 of the hole former are respectively provided with spring seats 622. A cylindrical spring 613 and a spring limit pull rod 614 are installed between the spring seats 622 to form a reset mechanism for the movable nozzle of the hole former; the cylindrical spring 613 keeps the fixed nozzle 601 and the movable nozzle 602 of the hole former in a closed state;

[0034] A control rod seat 618 is provided between the two movable nozzles 602 of the hole former, and the control rod seat 618 connects the two movable nozzles 602 of the hole former into one body. A movable nozzle switch control rod 617 is provided on the control rod seat 618, and a switch rod seat 615 is provided on the middle cross beam 607. The switch rod seat 615 is movably connected with one end of the movable nozzle opening rod 608 and the movable nozzle closing rod 609 through a pin shaft 616. A gear pair 612 is provided at the connection between the movable nozzle opening rod 608 and the movable nozzle closing rod 609 and the switch rod seat 615. The movable nozzle opening rod 608 and the movable nozzle closing rod 609 are meshed and rotated through the gear pair 612. A rod bearing 610 is provided at the other end of the movable nozzle opening rod 608. A roller wheel 619 is provided on the movable nozzle closing rod 609. The roller wheel 619 is connected to the movable nozzle switch control rod 617. 17 fits and slides, the roller 619 moves with the moving mouth closing rod 609, the roller 619 pushes the moving mouth switch control rod 617, the moving mouth switch control rod 617 further pushes the control rod seat 618, and the control rod seat 618 drives the moving mouth 602 of the hole forming device to open and close; the moving mouth opening guide rail 625 is arc-shaped, the rod bearing 610 of the moving mouth opening rod 608 fits with the moving mouth opening guide rail 625, and the rod bearing 610 slides along the surface of the arc-shaped moving mouth opening guide rail 625, so that the moving mouth opening rod 608 rotates along the pin shaft 616, and synchronously drives the moving mouth closing rod 609 to rotate through the gear pair 612, and a reset coil spring 611 is provided on the switch rod seat 615, and the reset coil spring 611 is connected with the moving mouth closing rod 609 to form a moving mouth closing rod reset mechanism. A limit pin 621 is provided on the switch rod seat 615, and the limit pin 621 limits the maximum lifting position of the movable nozzle opening rod 608 to prevent the movable nozzle opening rod 608 from excessive displacement.

[0035] The longitudinal beam 103 is also provided with a control disk support wheel fixing seat 108, and the control disk support wheel fixing seat 108 is also connected to the hole sowing device direct insertion mechanism 7, and the hole sowing device direct insertion mechanism 7 includes a control wheel 701, an auxiliary plate 709 and a support wheel 711. The control wheel 701 is connected to the rotating disk 626 through the auxiliary plate 709. The control wheel 701 and the rotating disk 626 are eccentrically arranged. The control wheel 701 is provided with a track groove 702, a crank shaft hole 703 and a support wheel shaft hole 704. Crank shafts II 708 are provided at both ends of the auxiliary plate 709, and a crank 705 is provided in the middle of the auxiliary plate 709. The crank shaft II 708 is hung with the track groove 702, and the crank 705 is movably connected with the crank shaft hole 703 through a crank bearing 704. A support bearing 710 is provided on the support wheel shaft hole 704, and the support bearing 710 is clamped on the outer edge of the circumference of the support wheel 711. The control wheel 701 is provided with 6 track grooves 702, 3 crankshaft holes 703 and 3 support wheel shaft holes 704, and 3 auxiliary plates 709 are provided. The two ends of each auxiliary plate 709 are respectively connected to two groups of hole-casting components, and each auxiliary plate 709 is hung on two adjacent track grooves 702. The track groove 702 is composed of a control edge 706 and a reset edge 707. The control edge 706 is a straight line, and the reset edge 707 is an arc. The crankshaft II 708 slides along the track groove 702. The fixed nozzle 601 and the movable nozzle 602 of the hole-forming device are in the shape of a semi-conical surface, and the tips of the fixed nozzle 601 and the movable nozzle 602 of the hole-forming device are cut off.

[0036] Working principle: The machine is pulled by a tractor to perform potato hole sowing on the film. When the tractor moves forward, the ground wheel on the ground wheel driving component rotates forward, the ground wheel shaft, the seed sprockets at both ends of the ground wheel shaft and the seed potato hole sowing sprocket rotate together, and the hole sowing device vertically enters the soil to a specified depth, forming a seed bed pit in the soil. The hole sowing wheel rotates continuously, and the hole sowing device moves vertically upward. The fixed and movable mouths of the hole sowing device gradually open under the action of the movable mouth spring. When the opening of the movable mouth is larger than the seed potato, the seed potato is discharged from the hole sowing device and falls into the soil. The hole sowing device moves upward continuously, and the opening becomes larger and larger. When the opening is the largest, the hole sowing device leaves the ground. The seed potato hole sowing device, the hole sowing crank, the hole sowing direct insertion control wheel, and the crank control hole sowing device always maintain a vertical downward state. Under the action of the control wheel crank, the hole sowing direct insertion control wheel and the seed potato hole sowing device rotate synchronously around the support. The double constraints of the support wheel and the direct insertion control wheel always allow vertical hole sowing. After the seed potatoes fall into the soil pit, the outer edges of the fixed and movable mouths of the hole sower move up along the pit wall, and the scraped soil covers the seed potatoes, completing the covering of the seed potatoes. The utility model can be combined with the existing seeding device, and the seeding device selects the existing potato seeding mechanism, and the existing potato seeding mechanism adopts the marketed product. It only needs the seeding device to move forward continuously with the tractor, the hole sower moves vertically up to take seeds and moves down to sow seeds, and the fixed and movable mouths of the hole sower discharge seeds and cover the soil. This process is continuously cycled to complete the potato hole sowing operation on the film.

Claims

1. The potato direct-insertion hole-seeding device opening and closing control mechanism is characterized in that The invention comprises a frame (1), a sowing depth adjustment ground wheel (2), a driving ground wheel (3), a chain transmission component (4) and a hole sowing device opening and closing control device (6); the frame (1) comprises a front crossbeam (101), a rear crossbeam (102) and a longitudinal beam (103); the front crossbeam (101), the rear crossbeam (102) and the longitudinal beam (103) form a frame structure; the front crossbeam (101) is provided with a traction connecting plate (104); the rear crossbeam (102) is provided with a seat (9); and the longitudinal beam (103) is provided with a ground wheel bearing seat ( 105), a hole sowing wheel intermediate bearing seat (106), a bearing seat (107), and a sowing depth adjustment ground wheel seat (109); a driving ground wheel (3) is provided on the ground wheel bearing seat (105); a chain transmission component (4) and a hole sowing device opening and closing control device (6) are provided on the hole sowing wheel intermediate bearing seat (106); the driving ground wheel (3) drives the chain transmission component (4), and the chain transmission component (4) drives the hole sowing device opening and closing control device (6) to work; potato seed blocks are introduced into the hole sowing device opening and closing control device (6) for hole sowing; The hole-forming device opening and closing control device (6) comprises a hole-forming device fixed nozzle (601), a hole-forming device movable nozzle (602), a support ring (603), a crank shaft I (604), a support shaft (605), a side crossbeam (606), an intermediate crossbeam (607), a movable nozzle opening rod (608), a movable nozzle closing rod (609), a rod bearing (610), a reset coil spring (611), a gear pair (612), a cylindrical spring (613), a spring limit pull rod (614), a switch rod seat (615), a pin shaft (616), a movable nozzle switch control rod (617), a control rod seat (618), and a roller (619). Two hole-forming device fixed nozzles (601) are respectively provided on the left and right sides of the intermediate crossbeam (607). The hole-forming device fixed nozzle (601) is also provided with a plurality of movable nozzles. A side crossbeam (606) and a support shaft (605) are provided on one side to form a hole sowing assembly. The hole sowing assembly is connected to a rotating disk (626) via the support shaft (605). A plurality of groups of hole sowing assemblies are provided on the rotating disk (626). The rotating disk (626) rotates to drive the hole sowing assembly to work. The fixed nozzle (601) of the hole forming device is hinged to the movable nozzle (602) of the hole forming device via a movable nozzle pin (624). Spring seats (622) are provided on the fixed nozzle (601) and the movable nozzle (602) of the hole forming device, respectively. A cylindrical spring (613) and a spring limiting pull rod (614) are installed between the spring seats (622) to form a movable nozzle reset mechanism of the hole forming device. Under the action of the cylindrical spring (613), the fixed nozzle (601) and the movable nozzle (602) of the hole forming device are kept in a closed state. A control rod seat (618) is provided between the two cavitation device movable mouths (602), and the control rod seat (618) connects the two cavitation device movable mouths (602) into one body. A movable mouth switch control rod (617) is provided on the control rod seat (618), and a switch rod seat (615) is provided on the middle cross beam (607). The switch rod seat (615) is movably connected to the movable mouth opening rod (608) and one end of the movable mouth closing rod (609) through a pin shaft (616). The movable mouth opening rod (608) and the movable mouth closing rod (609) are connected to the switch rod seat (615) with a gear pair (612). The movable mouth opening rod (608) and the movable mouth closing rod (609) are meshed and rotated through the gear pair (612). The other end of the movable mouth opening rod (608) is provided with a rod bearing (610). The movable mouth closing rod (609) is provided with a roller (619). The roller (619) is connected to the movable mouth switch control rod. (617) fits and slides, the roller (619) moves with the moving mouth closing rod (609), the roller (619) pushes the moving mouth switch control rod (617), the moving mouth switch control rod (617) further pushes the control rod seat (618), and the control rod seat (618) drives the moving mouth (602) of the hole forming device to open and close; the moving mouth opening guide rail (625) is arc-shaped, and the rod bearing (610) of the moving mouth opening rod (608) and the moving mouth opening guide rail are connected. (625) fits, the rod bearing (610) slides along the surface of the arc-shaped movable nozzle opening guide rail (625), thereby causing the movable nozzle opening rod (608) to rotate along the pin shaft (616), and synchronously driving the movable nozzle closing rod (609) to rotate through the gear pair (612), and a reset coil spring (611) is provided on the switch rod seat (615), and the reset coil spring (611) is connected to the movable nozzle closing rod (609) to form a movable nozzle closing rod reset mechanism.

2. The potato direct-insertion hole-seeding device opening and closing control mechanism according to claim 1 is characterized in that The longitudinal beam (103) is further provided with a control disk support wheel fixing seat (108), and the control disk support wheel fixing seat (108) is also connected to a seed drill direct insertion mechanism (7), the seed drill direct insertion mechanism (7) comprising a control wheel (701), an auxiliary plate (709) and a support wheel (711), the control wheel (701) being connected to the rotating disk (626) via the auxiliary plate (709), the control wheel (701) and the rotating disk (626) being eccentrically arranged, and a track groove (702) being provided on the control wheel (701) ), a crankshaft hole (703) and a supporting wheel shaft hole (712), crankshafts II (708) are provided at both ends of the auxiliary plate (709), a crank (705) is provided in the middle of the auxiliary plate (709), the crankshaft II (708) is hung with the track groove (702), the crank (705) is movably connected with the crankshaft hole (703) through a crank bearing (704), a supporting bearing (710) is provided on the supporting wheel shaft hole (712), and the supporting bearing (710) is clamped on the outer edge of the circumference of the supporting wheel 711.

3. The potato direct-insertion hole-seeding device opening and closing control mechanism according to claim 2 is characterized in that The control wheel (701) is provided with six track grooves (702), three crank shaft holes (703) and three support wheel shaft holes (712), and three auxiliary plates (709) are provided, and each auxiliary plate (709) is connected to two sets of cave broadcasting components at both ends, and each auxiliary plate (709) is hung on two adjacent track grooves (702).

4. The potato direct-insertion hole-seeding device opening and closing control mechanism according to claim 3 is characterized in that The track groove (702) is composed of a control edge (706) and a reset edge (707), the control edge (706) is a straight line, the reset edge (707) is an arc, and the crankshaft II (708) slides along the track groove (702).

5. The potato direct-insertion hole-seeding device opening and closing control mechanism according to claim 1 is characterized in that The fixed nozzle (601) and the movable nozzle (602) of the cavitation device are in the shape of a semi-conical surface, and the tips of the fixed nozzle (601) and the movable nozzle (602) of the cavitation device are cut off.

Images