Inclined oppositely-arranged combined finger clamping type precise corn seed-metering device

Abstract

The invention discloses an inclined oppositely-arranged combined finger clamping type precise corn seed-metering device which comprises a machine shell, a seed-metering channel is arranged at the lower end of the machine shell, two seed-metering devices are symmetrically arranged in the machine shell, the two seed-metering devices are used for metering seeds at intervals, and the adjacent ends of seed-metering shafts of the two seed-metering devices are in transmission connection; wherein the other end of the seed-metering shaft of one seed-metering device is connected with a power source, and seed-metering ports of the two seed-metering devices are both located at the upper end of a feeding port of the seed-metering channel. According to the invention, the seeding efficiency can be improved under the rotating speed of the finger chuck without damaging seeds, so that the seeding machine can realize high-speed operation.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural sowing machinery, and in particular to an inclined opposed combined finger-clamp type corn precision seeding device. Background Art

[0002] Cultivation of crops or plants requires that seeds be sown or placed at regular intervals where crops are to grow. Maintaining the proper spacing between seeds ensures that the nutrients required for proper seed growth are supplied to healthy crops. The seed meter is a key component of precision seeding and a core component of the seeder. Existing finger-clamp seed meters are mostly circular, and the power is transmitted to the seeding shaft through a chain drive, which drives the finger-clamp pressure plate and the finger-clamp plate to rotate. The seeds rotate with the finger-clamp plate until they are rotated to the seeding port of the seed meter and discharged. The seed collection slot that discharges the seeds continues to rotate to the seed chamber to collect seeds, and the seeding operation is carried out in this cycle.

[0003] Existing seeders generally improve sowing efficiency by increasing the rotation speed of the seeding shaft. When the rotation speed of the seeding shaft is increased, the rotation speed of the finger clamping disc is also increased. When the rotation speed of the finger clamping disc is increased, the seed damage rate is also increased. If the rotation speed of the finger clamping disc is too high, the operation stability of the machine will be affected. Therefore, its sowing efficiency is limited by the rotation speed of the finger clamping disc, which makes it difficult for the seeder to achieve high-speed operation and cannot meet the requirements of precision sowing. Summary of the invention

[0004] The purpose of the present invention is to provide an inclined opposed combined finger-clamp type corn precision seeding device, which can improve its seeding efficiency at a rotation speed without damaging seeds with a finger-clamp disc, so that the seeding machine can achieve high-speed operation.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a tilted opposed combined finger-clamp type corn precision seeding device, comprising a casing, a seeding channel is provided at the lower end of the casing, two seeding devices are symmetrically arranged in the casing, the two seeding devices seed at intervals and the adjacent ends of the seeding shafts of the two seeding devices are transmission connected, the other end of the seeding shaft of one of the seeding devices is connected to a power source, and the seeding ports of the two seeding devices are both located at the upper end of the feeding port of the seeding channel.

[0006] A further improvement of the present invention is that the two seeding devices are arranged at an angle, and the power source includes a horizontally arranged driving shaft, both ends of the seeding shaft of the seeding device close to the driving shaft pass through its housing and one end is transmission connected to the driving shaft, and the other end is transmission connected to the seeding shaft of another seeding device.

[0007] A further improvement of the present invention is that a first bevel gear is provided at one end of the driving shaft, a second bevel gear matching with the first bevel gear is provided at one end of the seeding shaft of a seeding device close to the driving shaft, a third bevel gear is provided at the other end of the seeding shaft, and a fourth bevel gear matching with the third bevel gear is provided at one end of the seeding shaft of another seeding device.

[0008] A further improvement of the present invention is that the first bevel gear and the second bevel gear are a pair of bevel gear pairs with an interleaving angle of 160°.

[0009] A further improvement of the present invention is that the third bevel gear and the fourth bevel gear are a pair of bevel gear pairs with a staggered angle of 140°.

[0010] A further improvement of the present invention is that the two seed-metering devices are both installed in the casing at an inclination of 20°, and the angle between the two seed-metering devices is 40°.

[0011] A further improvement of the present invention is that a staggered angle of 15° is formed between the seeding openings of the two seeding devices.

[0012] A further improvement of the present invention is that a seed filling bin which is respectively connected to the two seed metering devices is provided between the two seed metering devices.

[0013] The beneficial effects of the present invention are: The present invention arranges two seeding devices in a casing, and the two seeding devices can be synchronously driven to operate through a driving shaft. The interval seeding of the two seeding devices can improve the sowing efficiency at a rotation speed that does not damage the seeds on the finger clamping disc, so that the seeder can achieve high-speed operation.

[0014] The traditional finger-clamp type seed meter is placed vertically. In the critical seed filling state, its seed filling mainly relies on the horizontal lateral pressure stress between seeds, but the horizontal lateral pressure stress between seeds is limited. The seed meter of the present invention not only utilizes the horizontal lateral pressure stress between seeds, but also utilizes the component of gravity stress and the component of vertical pressure stress between seeds. Therefore, compared with the traditional finger-clamp type seed meter, the inclined opposed combined finger-clamp type corn precision seed meter has more filling force types, which can significantly improve the seed filling capacity of the seed meter during high-speed operation.

[0015] The present invention arranges two seeding discs symmetrically, and one seeding disc is arranged to rotate 7.5° in the direction of rotation of the finger clamp at the original position, and the other seeding disc is arranged to rotate 7.5° in the opposite direction of rotation of the finger clamp at the original position. The finger clamp of the original finger-clamp type corn precision seeding device sows one seed for every 30° rotation of the finger clamp. This arrangement can make the seed guide ports on the two seeding discs staggered by half of the adjacent finger clamp angle spacing, that is, a staggered angle of 15°, that is, the finger clamps of the inclined opposed combined finger-clamp type corn precision seeding device sow one seed for every 15° rotation of the finger clamp, and the sowing speed is doubled. Therefore, when the external conditions are consistent, the working speed of the inclined opposed combined finger-clamp type corn precision seeding device only needs to reach half of the original seeding device to achieve the same sowing efficiency, so the seeding device can adapt to high-speed operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention.

[0017] Figure 2 It is a schematic diagram of a front cross-section of the structure of the present invention.

[0018] In the figure, 1- housing, 2- seeding channel, 3- seeding device, 4- seeding shaft, 5- seeding port, 6- driving shaft, 7- first bevel gear, 8- second bevel gear, 9- third bevel gear, 10- fourth bevel gear, 11- seed filling bin. DETAILED DESCRIPTION

[0019] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. Example

[0020] Combination Figure 1~2 It can be seen that an inclined opposed combined finger-clamp type corn precision seeding device comprises a casing 1, a seeding channel 2 is provided at the lower end of the casing 1, two seeding devices 3 are symmetrically provided in the casing 1, the two seeding devices 3 seed at intervals and the adjacent ends of the seeding shafts 4 of the two seeding devices 3 are transmission-connected, the other end of the seeding shaft 4 of one of the seeding devices 3 is connected to a power source, and the seeding ports 5 of the two seeding devices 3 are both located at the upper end of the feeding port of the seeding channel 2. A seed filling bin 11 is provided between the two seeding devices 3 and is respectively connected to the two seeding devices 3.

[0021] Preferably, the seeding device 3 is a finger-clamp type seeding device. When the finger-clamp type seeding device works normally, corn seeds enter the seed filling bin through the seed inlet tube on the seed filling bin 11, and the ground wheel transmits power to the seeding shaft 4 through a chain drive, and drives the finger-clamp pressure plate and the like to rotate. The seeds are transported to the seeding port 5 for seeding, and the seeding process is completed.

[0022] The two seeding devices 3 are arranged obliquely, and the power source includes a horizontally arranged driving shaft 6, and both ends of the seeding shaft 4 of the seeding device 3 close to the driving shaft 6 pass through its housing, and one end is transmission-connected to the driving shaft 6, and the other end is transmission-connected to the seeding shaft 4 of another seeding device 3. Preferably, the power source also includes a ground wheel of the seeder, which transmits the working speed to the sprocket on the driving shaft 6, and the sprocket reduces the speed to the first bevel gear 7 at a certain transmission ratio.

[0023] A first bevel gear 7 is provided at one end of the driving shaft 6, a second bevel gear 8 matching with the first bevel gear 7 is provided at one end of the seeding shaft 4 of the seeding device 3 close to the driving shaft 6, a third bevel gear 9 is provided at the other end of the seeding shaft 4, and a fourth bevel gear 10 matching with the third bevel gear 9 is provided at one end of the seeding shaft 4 of another seeding device 3.

[0024] The first bevel gear 7 and the second bevel gear 8 form a pair of bevel gears with a staggered angle of 160°.

[0025] The third bevel gear 9 and the fourth bevel gear 10 form a pair of bevel gears with a staggered angle of 140°.

[0026] The two seed-metering devices 3 are both installed in the casing 1 at an inclination of 20°, and the angle between the two seed-metering devices 3 is 40°.

[0027] A 15° staggered angle is formed between the seeding openings 5 ​​of the two seeding devices 3. One seeding disc is arranged by rotating 7.5° in the direction of rotation of the finger clamp from the original position, and the other seeding disc is arranged by rotating 7.5° in the opposite direction of the finger clamp from the original position. The finger clamp of the original finger-clamp type corn precision seeding device sows one seed every 30° rotation. This arrangement can make the seed guide openings on the two seeding discs staggered by half of the adjacent finger clamp angle spacing, that is, a staggered angle of 15°, that is, the inclined opposed combined finger-clamp type corn precision seeding device sows one seed every 15° rotation of the finger clamp, and the sowing speed is doubled.

[0028] Preferably, a seed shaft isolation sleeve is provided in the casing 1, and the second bevel gear 8 and the third bevel gear 9 are both located in the seed shaft isolation sleeve, which functions to isolate the second bevel gear 8 and the third bevel gear 9 from the seeds to prevent the bevel gears from damaging the seeds during the operation of the seed metering device. The sleeve is connected to the seed metering device casing by bolts.

[0029] The working principle of the inclined opposed combined finger-clamp type corn precision seeding device provided by the invention is as follows: when working, the ground wheel of the seeder transmits power to the driving shaft 6 through the chain drive, and the rotating driving shaft 6 drives the seeding shaft 4 in the seeding device 3 on one side to rotate through the first bevel gear 7 thereon, and the seeding device 3 drives the seeding shaft 4 of the other seeding device 3 to rotate through the third bevel gear 9 at one end of its seeding shaft 4, so that both seeding devices can operate. Since a 15° staggered angle is formed between the seeding openings of the two seeding devices 3, that is, one seeding device 3 is rotated 7.5° in the direction of rotation of the finger clamp at the original position, and the other seeding device 3 is rotated 7.5° in the opposite direction of rotation of the finger clamp at the original position. The original finger-clamp type corn precision seeding device sows one seed for every 30° rotation of the finger-clamp type. This arrangement can make the seed guide openings on the two seed-rowing discs staggered by half the angle spacing of the adjacent finger-clamp type, that is, a staggered angle of 15°, that is, the inclined opposed combined finger-clamp type corn precision seeding device sows one seed for every 15° rotation of the finger-clamp type, and the sowing speed is doubled. Therefore, when the external conditions are the same, the working speed of the inclined opposed combined finger-clamp type corn precision seeding device only needs to reach half of the original seeding device to achieve the same sowing efficiency, so the seeding device can adapt to high-speed operations.

[0030] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly used in other related technical fields, are similarly included in the patent protection scope of the present invention.

Claims

1. An inclined opposed combined finger-clamp type corn precision seed metering device, characterized in that: The invention comprises a casing (1), wherein a seeding channel (2) is provided at the lower end of the casing (1), and two seeding devices (3) are symmetrically arranged in the casing (1), wherein the two seeding devices (3) seed at an interval and the adjacent ends of the seeding shafts (4) of the two seeding devices (3) are transmission-connected, wherein the other end of the seeding shaft (4) of one of the seeding devices (3) is connected to a power source, and the seeding ports (5) of the two seeding devices (3) are both located at the upper end of the feed inlet of the seeding channel (2).

2. The inclined opposed combined finger-clamp type corn precision seed metering device according to claim 1 is characterized by: The two seeding devices (3) are arranged obliquely, and the power source comprises a horizontally arranged driving shaft (6). Both ends of the seeding shaft (4) of the seeding device (3) close to the driving shaft (6) pass through its housing, and one end is drivingly connected to the driving shaft (6), and the other end is drivingly connected to the seeding shaft (4) of the other seeding device (3).

3. The inclined opposed combined finger-clamp type corn precision seed metering device according to claim 2, characterized in that: A first bevel gear (7) is provided at one end of the driving shaft (6), a second bevel gear (8) matching with the first bevel gear (7) is provided at one end of the seeding shaft (4) of the seeding device (3) close to the driving shaft (6), a third bevel gear (9) is provided at the other end of the seeding shaft (4), and a fourth bevel gear (10) matching with the third bevel gear (9) is provided at one end of the seeding shaft (4) of the other seeding device (3).

4. The inclined opposed combined finger-clamp type corn precision seed metering device according to claim 3 is characterized by: The first bevel gear (7) and the second bevel gear (8) are a pair of bevel gear pairs with an interlaced angle of 160°.

5. The inclined opposed combined finger-clamp type corn precision seed metering device according to claim 3 or 4, characterized in that: The third bevel gear (9) and the fourth bevel gear (10) are a pair of bevel gear pairs with a staggered angle of 140°.

6. The inclined opposed combined finger-clamp type corn precision seed metering device according to claim 2, characterized in that: The two seed-dispensing devices (3) are both installed in the housing (1) at an angle of 20°, and the angle between the two seed-dispensing devices (3) is 40°.

7. The inclined opposed combined finger-clamp type corn precision seed metering device according to claim 1, characterized in that: The seeding openings (5) of the two seeding devices (3) form a staggered angle of 15°.

8. The inclined opposed combined finger-clamp type corn precision seed metering device according to claim 1, characterized in that: A seed filling bin (11) is provided between the two seed metering devices (3) and is respectively connected to the two seed metering devices.

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