Automatic seed metering device for seeding machine

Abstract

The invention provides an automatic seed metering device for a seeder, and relates to the technical field of seed metering devices.The automatic seed metering device comprises a combined frame, a sealing cover and an assembling cover are installed on the two faces of the combined frame respectively, a material storage box is arranged in the assembling cover, a feeding pipe is connected to the outer side of the material storage box, and an opening is formed in one side of the assembling cover; a discharging guide pipe used for discharging seeds is installed at the bottom of the opening, a vacuum pumping pipe used for being connected with a vacuum pump is installed on the upper side of the sealing cover, a seed discharging disc is rotationally installed in the middle of the combined frame, and a driving assembly used for driving the seed discharging disc to rotate is fixedly installed on one side of the sealing cover; the center of the sealing cover is provided with an adjusting assembly used for adjusting the collection size of the seed-metering disc. The size of a plurality of adsorption through holes in a single seed-metering device can be quickly adjusted, the seed-metering device does not need to be disassembled, seed-metering discs of different specifications do not need to be arranged, the adjusting efficiency is improved, the disassembled seed-metering discs do not need to be managed, and the working intensity is greatly relieved.

Description

Technical Field

[0001] The invention relates to the technical field of seeding devices, and in particular to an automatic seeding device for a seeder. Background Art

[0002] Seeding devices are widely used in agricultural production, especially playing an important role in the sowing operations of crops such as grains, vegetables, and fruit trees. The use of a seeding device can improve seeding efficiency, reduce labor intensity, and save seed costs. For example, a seeding device for a rapeseed seeder with a patent announcement number of CN209897601U is disclosed. The rapeseed seeder includes a seeding wheel, the seeding device is connected to the seeding wheel and is arranged on the upper part of the seeding wheel, the seeding wheel is cylindrical, a fixed ring groove is arranged on its outer wall, a fixed ring is sleeved on the fixed ring groove, a seed guide tube is connected to the fixed ring, and the other end of the seed guide tube is connected to the seeding device, the seeding device includes a seeding shaft and a seed guide sleeve, the seeding shaft is arranged in the seed guide sleeve, and no less than two circles of seeding grooves are evenly distributed in the radial direction of the seeding shaft, an upper seed guide port facing the seeding groove and a lower seed guide port facing the seed guide tube are respectively arranged at the top and bottom of the seed guide sleeve, a seed bucket is connected to the upper part of the upper seed guide port, and a seed uniforming mechanism is arranged on the upper part of the seed bucket; the seeding device for a rapeseed seeder of the utility model has high seeding efficiency, a large seeding range at one time, a wide sowing range, and the problems of blockage and easy damage of seeds in seeding are solved.

[0003] Before seeding, the existing seeding device needs to be replaced with a seeding tray of corresponding size according to the needs of the clock and the size of the seeds. This method not only requires disassembling the seeding device, but also requires that multiple seeding devices be equipped on a single seeder due to the clock. As a result, a large number of seeding trays of different specifications need to be prepared, which is not only inconvenient to carry, but also a large number of unused seeding trays require a large amount of storage space. For this reason, the present application designs an automatic seeding device for a seeder, which can adjust the size of the through holes of the seeding tray as needed, without the need to prepare a large number of spare seeding trays and without the need to disassemble and replace them. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an automatic seeding device for a seeder, which solves the problem that the prior art seeding device needs to be disassembled and seeding discs of corresponding specifications installed when sowing different seeds, resulting in a cumbersome adjustment process and a large workload.

[0005] To achieve the above object, the technical solution adopted by the present invention is: An automatic seeding device for a seeder comprises a combined frame, a sealing cover and an assembly cover are respectively installed on both sides of the combined frame, a material storage box is arranged inside the assembly cover, a feed pipe is connected to the outer side of the material storage box, an opening is opened on one side of the assembly cover, a discharge conduit for discharging seeds is installed at the bottom of the opening, a vacuum suction pipe for connecting to a vacuum pump is installed on the upper side of the sealing cover, a seeding disk is rotatably installed in the middle of the combined frame, a driving component for driving the seeding disk to rotate is fixedly installed on one side of the sealing cover, and an adjusting component for adjusting the collection size of the seeding disk is installed in the center of the sealing cover.

[0006] Preferably, a plurality of adsorption through holes for adsorbing seeds are provided on the surface of the seeding disc, an extension sleeve is provided on the back of the seeding disc, and matching tooth grooves are provided on the inner wall of the extension sleeve.

[0007] Preferably, the adjustment assembly comprises a rotating shaft, one end of which is provided with a sealing shaft, and the sealing shaft is rotatably mounted in the center of the sealing cover in a sealing manner; A rotating hole is provided in the middle of the rotating shaft, an adjusting rod is rotatably installed inside the rotating hole, a threaded rod is fixedly installed at one end of the adjusting rod, a matching disk is provided on the rod body of the threaded rod, and a control baffle is connected to the outer side of the matching disk through a transmission support rod.

[0008] Preferably, a limit seat is fixedly installed at the other end of the rotating shaft, and the rotating shaft is installed in the middle of the seeding disc through the limit seat; A threaded hole is provided at the center of the matching disk, and the threaded hole is threadedly matched with the threaded rod. Limiting grooves are provided on both sides of the threaded hole, and the limiting grooves are limitedly matched with the limiting seat.

[0009] Preferably, a plurality of grooves are provided on the outer side of the matching plate, a first hinge is installed inside each of the grooves, a transmission support rod is installed on the outer side of the first hinge, and a second hinge is provided on the outer side of the transmission support rod; A moving sheet is installed on one side of the control baffle, and the moving sheet moves in the corresponding adsorption through hole. An extension seat is fixedly installed on one side of the moving sheet, and the outer side of the extension seat is connected to the second hinge.

[0010] Preferably, a movable seat is fixedly mounted on the surface of the sealing cover, a movable block is movably mounted inside the movable seat through a tightening spring, a locking seat is fixedly mounted on the upper end of the movable block, and a pull rod is mounted on the surface of the movable block; A locking groove is provided on the outer side of the sealing shaft, the locking seat is tightly matched with the locking groove, and a knob is installed on the outer side of the adjusting rod.

[0011] Preferably, the driving assembly includes a sealed rotating shaft, which is sealed and rotatably mounted inside a sealing cover, and a transmission gear and a sprocket are respectively mounted on both ends of the sealed rotating shaft, the transmission gear is meshed with a matching tooth groove, and the sprocket is connected to a chain.

[0012] Preferably, a rotating shaft is rotatably mounted inside the discharge conduit, a discharge push rod is fixedly mounted on the shaft body of the rotating shaft, and one end of the rotating shaft extends to the outside of the discharge conduit and cooperates with the locking nut thread.

[0013] Preferably, a shielding cover is provided on one side of the material storage box, the shielding cover is close to the seeding disk, and a discharge port for discharging seeds is opened on the upper side of the material storage box.

[0014] Preferably, a through hole is opened on the upper side of the assembly cover and a turning frame is installed inside, a turntable is installed inside the turning frame, and a plurality of cleaning scrapers are installed outside the turntable, and each cleaning scraper has a different distance from the seeding disc.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. By rotating the threaded rod, the threaded rod and the threaded hole are threadedly matched, so that the position of the matching disk is adjusted. During the adjustment process, the first hinge and the second hinge are respectively installed at both ends of the transmission support rod, so that when the matching disk is close to the seeding disk, the movable plate will move toward the adsorption through hole and reduce the adsorption size. Conversely, when the matching disk is away from the seeding disk, the movable plate will move away from the adsorption through hole and increase the adsorption size. Through the above structure, the application can quickly adjust the size of multiple adsorption through holes in a single seeding device without disassembling the seeding device and equipping seeding disks of different specifications. It not only improves the adjustment efficiency but also eliminates the need to manage the disassembled seeding disks, greatly reducing the work intensity.

[0016] 2. Before turning the knob, use the pull rod to lift the moving block inside the movable seat, so that the locking seat moves up and fits into the locking groove, thereby locking the sealing shaft and the rotating shaft to prevent the rotating shaft from rotating when the knob is turned; The above structure can ensure that the adjustment rod and the threaded rod are rotated when the knob is subsequently turned, and the distance position of the matching disk is adjusted by subsequent thread matching, so that the size of the adsorption hole will not be changed due to the rotation of the knob when the locking groove is not locked, so as to avoid people accidentally changing the size.

[0017] 3. When installing the seeding device on the seeder, the sprocket needs to be connected to the chain to realize the transmission of power. Then, the sprocket and the sealed shaft are driven by the chain to rotate, and the transmission gear rotates and engages with the matching tooth groove to realize the automatic rotation of the seeding disc for automatic seeding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 is a schematic diagram of a three-dimensional structure from another viewing angle of the present invention; Figure 3 yes Figure 2 The enlarged structural diagram at a in the middle; Figure 4 It is a schematic diagram of the top view of the structure of the present invention; Figure 5 yes Figure 4 Schematic diagram of the cross-section structure at AA in the middle; Figure 6 yes Figure 4 Schematic diagram of the cross-section structure at BB; Figure 7 yes Figure 4 Schematic diagram of the cross-section structure at CC; Figure 8 It is a schematic diagram of the three-dimensional structure of the seed tray; Fig. 9 This is a three-dimensional structural diagram of the seed tray from another perspective; Fig.10 It is a schematic diagram of the side view structure of the seed tray; Fig.11 yes Fig.10 Schematic diagram of the cross-section structure at DD; Fig.12 yes Fig.10 Schematic diagram of the cross-sectional structure at EE.

[0019] In the figure: 1, combined frame; 2, sealing cover; 3, assembly cover; 301, opening; 302, turning frame; 303, turntable; 304, cleaning scraper; 305, storage box; 3051, shielding cover; 3052, discharge port; 4, feed pipe; 5, discharge guide tube; 501, locking screw sleeve; 502, rotating shaft; 503, discharge push rod; 6, vacuum suction pipe; 7, driving assembly; 701, sealing shaft; 702, transmission gear; 703, sprocket; 8, adjustment assembly; 801, rotating shaft; 8011, sealing shaft; 8012, limit seat; 8013, rotating hole; 8014, locking groove; 802, adjusting rod; 8021, knob; 8022, threaded rod; 803, matching disk; 8031, groove; 8032, threaded hole; 8033, limit groove; 804, first hinge; 8041, transmission support rod; 8042, second hinge; 805, moving sheet; 8051, extension seat; 8052, control baffle; 806, movable seat; 8061, moving block; 8062, tightening spring; 8063, pull rod; 8064, locking seat; 9, seeding disk; 901, adsorption through hole; 902, extension sleeve; 903, matching tooth groove. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figures 1 to 12 As shown, an automatic seeding device for a seeder comprises a combined frame 1, a sealing cover 2 and an assembly cover 3 are respectively installed on both sides of the combined frame 1, a material storage box 305 is arranged inside the assembly cover 3, a feeding pipe 4 is connected to the outer side of the material storage box 305, an opening 301 is opened on one side of the assembly cover 3, a discharge conduit 5 for discharging seeds is installed at the bottom of the opening 301, a vacuum suction pipe 6 for connecting a vacuum pump is installed on the upper side of the sealing cover 2, a seeding disk 9 is rotatably installed in the middle of the combined frame 1, a driving component 7 for driving the seeding disk 9 to rotate is fixedly installed on one side of the sealing cover 2, and an adjusting component 8 for adjusting the collection size of the seeding disk 9 is installed in the center of the sealing cover 2.

[0022] In this embodiment, a plurality of adsorption through holes 901 for adsorbing seeds are provided on the surface of the seeding disc 9, an extension sleeve 902 is provided on the back of the seeding disc 9, and a matching tooth groove 903 is provided on the inner wall of the extension sleeve 902.

[0023] In this embodiment, the adjustment assembly 8 includes a rotating shaft 801, one end of which is provided with a sealing shaft 8011, and the sealing shaft 8011 is installed in a sealing and rotatable manner at the center of the sealing cover 2; A rotating hole 8013 is opened in the middle of the rotating shaft 801, and an adjusting rod 802 is rotatably installed inside the rotating hole 8013. A threaded rod 8022 is fixedly installed at one end of the adjusting rod 802. The rod body of the threaded rod 8022 is provided with a matching disk 803. The outer side of the matching disk 803 is connected to a control baffle 8052 through a transmission support rod 8041.

[0024] The other end of the rotating shaft 801 is fixedly mounted with a limit seat 8012, and the rotating shaft 801 is mounted in the middle of the seeding disc 9 through the limit seat 8012; A threaded hole 8032 is provided at the center of the matching disk 803 , and the threaded hole 8032 is threadedly matched with the threaded rod 8022 . Limiting grooves 8033 are provided on both sides of the threaded hole 8032 , and the limiting grooves 8033 are limitedly matched with the limiting seat 8012 .

[0025] The rotating shaft 801 is installed in the middle of the seed disk 9 through the limit seat 8012, so that the seed disk 9 can be supported when rotating, making it more stable. In order to allow the threaded hole 8032 to threadably cooperate with the threaded rod 8022 when the threaded rod 8022 rotates, the limit seat 8012 limits the limit groove 8033 when the threaded rod 8022 rotates, so that the matching disk 803 can only move horizontally, thereby adjusting the distance between the matching disk 803 and the seed disk 9.

[0026] In this embodiment, a plurality of grooves 8031 ​​are formed on the outer side of the matching plate 803, a first hinge 804 is installed inside each groove 8031, a transmission support rod 8041 is installed on the outer side of the first hinge 804, and a second hinge 8042 is arranged on the outer side of the transmission support rod 8041; A moving piece 805 is installed on one side of the control baffle 8052 . The moving piece 805 moves in the corresponding adsorption through hole 901 . An extension seat 8051 is fixedly installed on one side of the moving piece 805 . The outer side of the extension seat 8051 is connected to the second hinge 8042 .

[0027] In order to quickly adjust the size of multiple adsorption holes 901, the threaded rod 8022 is rotated to make the threaded rod 8022 and the threaded hole 8032 fit together, so that the position of the matching disk 803 is adjusted. During the adjustment process, the first hinge 804 and the second hinge 8042 are respectively installed at both ends of the transmission support rod 8041. When the matching disk 803 is close to the seeding disk 9, the movable plate 805 will move toward the adsorption hole 901 and reduce the adsorption size. Conversely, when the matching disk 803 is away from the seeding disk 9, the movable plate 805 will move away from the adsorption hole 901 and increase the adsorption size. The above structure enables the present application to quickly adjust the size of multiple adsorption holes 901 in a single seeding device without disassembling the seeding device and equipping seeding disks 9 of different specifications. This not only improves the adjustment efficiency but also eliminates the need to manage the disassembled seeding disks 9, greatly reducing the workload.

[0028] It should be noted that a movable seat 806 is fixedly installed on the surface of the sealing cover 2, a movable block 8061 is movably installed inside the movable seat 806 through a tightening spring 8062, a locking seat 8064 is fixedly installed on the upper end of the movable block 8061, and a pull rod 8063 is installed on the surface of the movable block 8061; A locking groove 8014 is provided on the outer side of the sealing shaft 8011 , and the locking seat 8064 is tightly fitted with the locking groove 8014 . A knob 8021 is installed on the outer side of the adjusting rod 802 .

[0029] Before turning the knob 8021, the pull rod 8063 is used to lift the moving block 8061 inside the movable seat 806, so that the locking seat 8064 moves up and is locked into the locking groove 8014, thereby locking the sealing shaft 8011 and the rotating shaft 801, and preventing the rotating shaft 801 from rotating when the knob 8021 is turned; The above structure can ensure that the subsequent rotation of the knob 8021 drives the rotation of the adjustment rod 802 and the threaded rod 8022, and the subsequent threaded matching is used to adjust the distance position of the matching disk 803, so that when the locking groove 8014 is not locked, the size of the adsorption hole 901 will not be changed due to the rotation of the knob 8021 to avoid people accidentally changing the size.

[0030] In the specific setting, the driving component 7 includes a sealed rotating shaft 701, which is sealed and rotatably installed inside the sealing cover 2. A transmission gear 702 and a sprocket 703 are respectively installed at both ends of the sealed rotating shaft 701. The transmission gear 702 is meshed with the matching tooth groove 903, and the sprocket 703 is connected to the chain.

[0031] When installing the seeding device to the seeder, the sprocket 703 needs to be connected to the chain to realize power transmission, and then the sprocket 703 and the sealed shaft 701 are driven by the chain to rotate, and the transmission gear 702 rotates and engages with the matching tooth groove 903, so as to realize the automatic rotation of the seeding disc 9 for automatic seeding operation.

[0032] In the present application, a rotating shaft 502 is rotatably installed inside the discharge conduit 5, and a discharge push rod 503 is fixedly installed on the shaft body of the rotating shaft 502. One end of the rotating shaft 502 extends to the outside of the discharge conduit 5 and is threadedly matched with the locking screw sleeve 501. A shielding cover 3051 is provided on one side of the storage box 305 , and the shielding cover 3051 is close to the seeding plate 9 . A discharge port 3052 for discharging seeds is provided on the upper side of the storage box 305 .

[0033] The distance between the discharge push rod 503 and the adsorption through hole 901 can be adjusted by rotating the rotating shaft 502, so as to avoid the problem that the discharge push rod 503 misses the adsorption through hole 901 after adjusting the size of the adsorption through hole 901.

[0034] In the present application, a through hole is opened on the upper side of the assembly cover 3 and a turning frame 302 is installed inside. A turntable 303 is installed inside the turning frame 302. A plurality of cleaning scrapers 304 are installed outside the turntable 303. Each cleaning scraper 304 has a different distance from the seeding disk 9.

[0035] The working principle of the automatic seeding device for a seeder: When in use, firstly adjust the discharge push rod 503 and the cleaning scraper 304 according to the seeding needs to ensure that the excess seeds can be pushed out or cleaned later, and then adjust the size of the adsorption through hole 901 according to the size of the seeds; When adjusting the size of the adsorption through hole 901, firstly, the pull rod 8063 is used to lift the moving block 8061 inside the movable seat 806, so that the locking seat 8064 moves up and is stuck in the locking groove 8014, thereby locking the sealing shaft 8011 and the rotating shaft 801, and preventing the rotating shaft 801 from rotating when the knob 8021 is rotated; Then, the knob 8021 is turned to rotate the threaded rod 8022, and the limiting seat 8012 is used to limit the limiting groove 8033, so that the threaded hole 8032 and the threaded rod 8022 can be threadedly matched, thereby adjusting the distance between the matching disk 803 and the seeding disk 9; During adjustment, when the matching disk 803 is close to the seeding disk 9, the movable sheet 805 will move toward the adsorption hole 901 and reduce the adsorption size. Conversely, when the matching disk 803 is away from the seeding disk 9, the movable sheet 805 will move away from the adsorption hole 901 and increase the adsorption size. After completion, just loosen the pull rod 8063 to complete the adjustment.

[0036] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. An automatic seeding device for a seeder, comprising a combined frame (1), characterized in that: The combined frame (1) is provided with a sealing cover (2) and an assembly cover (3) on both sides thereof, a material storage box (305) is arranged inside the assembly cover (3), a feed pipe (4) is connected to the outside of the material storage box (305), an opening (301) is provided on one side of the assembly cover (3), a material discharge conduit (5) for discharging seeds is installed at the bottom of the opening (301), a vacuum extraction pipe (6) for connecting to a vacuum pump is installed on the upper side of the sealing cover (2), a seeding disc (9) is rotatably installed in the middle of the combined frame (1), a driving assembly (7) for driving the seeding disc (9) to rotate is fixedly installed on one side of the sealing cover (2), and an adjusting assembly (8) for adjusting the collection size of the seeding disc (9) is installed in the center of the sealing cover (2).

2. The automatic seeding device for a seeder according to claim 1, characterized in that: The surface of the seeding disc (9) is provided with a plurality of adsorption through holes (901) for adsorbing seeds, the back of the seeding disc (9) is provided with an extension sleeve (902), and the inner wall of the extension sleeve (902) is provided with matching tooth grooves (903).

3. The automatic seeding device for a seeder according to claim 2, characterized in that: The adjustment component (8) comprises a rotating shaft (801), one end of the rotating shaft (801) is provided with a sealing shaft (8011), and the sealing shaft (8011) is installed in a sealing and rotatable manner at the center of the sealing cover (2); A rotating hole (8013) is provided in the middle of the rotating shaft (801), an adjusting rod (802) is rotatably mounted inside the rotating hole (8013), a threaded rod (8022) is fixedly mounted on one end of the adjusting rod (802), a matching disk (803) is provided on the rod body of the threaded rod (8022), and a control baffle (8052) is connected to the outer side of the matching disk (803) via a transmission support rod (8041).

4. The automatic seeding device for a seeder according to claim 3, characterized in that: A limit seat (8012) is fixedly mounted on the other end of the rotating shaft (801), and the rotating shaft (801) is mounted in the middle of the seeding disc (9) via the limit seat (8012); A threaded hole (8032) is provided at the center of the mating disk (803), the threaded hole (8032) is threadedly mated with the threaded rod (8022), limiting grooves (8033) are provided on both sides of the threaded hole (8032), and the limiting grooves (8033) are limitedly mated with the limiting seat (8012).

5. The automatic seeding device for a seeder according to claim 3, characterized in that: A plurality of grooves (8031) are provided on the outer side of the matching disk (803), a first hinge (804) is installed inside each of the grooves (8031), a transmission support rod (8041) is installed on the outer side of the first hinge (804), and a second hinge (8042) is provided on the outer side of the transmission support rod (8041); A movable sheet (805) is installed on one side of the control baffle (8052), and the movable sheet (805) moves in the corresponding adsorption through hole (901). An extension seat (8051) is fixedly installed on one side of the movable sheet (8055), and the outer side of the extension seat (8051) is connected to the second hinge (8042).

6. The automatic seeding device for a seeder according to claim 4, characterized in that: A movable seat (806) is fixedly mounted on the surface of the sealing cover (2); a movable block (8061) is movably mounted inside the movable seat (806) via a tightening spring (8062); a locking seat (8064) is fixedly mounted on the upper end of the movable block (8061); and a pull rod (8063) is mounted on the surface of the movable block (8061); A locking groove (8014) is provided on the outer side of the sealing shaft (8011), the locking seat (8064) is tightly fitted with the locking groove (8014), and a knob (8021) is installed on the outer side of the adjusting rod (802).

7. The automatic seeding device for a seeder according to claim 2, characterized in that: The driving assembly (7) comprises a sealed rotating shaft (701), the sealed rotating shaft (701) being mounted in a sealed and rotatable manner inside the sealing cover (2), a transmission gear (702) and a sprocket (703) being mounted at both ends of the sealed rotating shaft (701), the transmission gear (702) being meshed with a matching tooth groove (903), and the sprocket (703) being connected to a chain.

8. The automatic seeding device for a seeder according to claim 1, characterized in that: A rotating shaft (502) is rotatably mounted inside the discharge conduit (5), a discharge push rod (503) is fixedly mounted on the shaft of the rotating shaft (502), and one end of the rotating shaft (502) extends to the outside of the discharge conduit (5) and is threadably engaged with the locking screw sleeve (501).

9. The automatic seeding device for a seeder according to claim 1, characterized in that: A shielding cover (3051) is provided on one side of the material storage box (305), the shielding cover (3051) is close to the seeding disc (9), and a discharge port (3052) for discharging seeds is provided on the upper side of the material storage box (305).

10. The automatic seeding device for a seeder according to claim 1, characterized in that: A through hole is provided on the upper side of the assembly cover (3) and a turning frame (302) is installed inside the turning frame (302). A rotating disk (303) is installed inside the rotating disk (303). A plurality of cleaning scrapers (304) are installed outside the rotating disk (303). Each cleaning scraper (304) has a different spacing from the seeding disk (9).

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