A corn seed production electric drive planter and a control method thereof

Abstract

The application discloses a corn seed production electric drive seeding machine and a control method thereof. The seeding machine comprises a frame, a traction frame arranged at the front end of the frame, a plurality of seeding devices which are installed in parallel on the frame through a transverse moving device and are located behind the fertilizer arranging device, and the distance between adjacent seeding devices is adjusted through the transverse moving device to adjust the seeding row spacing. Each seeding device comprises a seeding frame, a seed box, a lifting mechanism, a hole forming mechanism and a seed arranging mechanism. The seed box, the hole forming mechanism and the seed arranging mechanism are installed on the seeding frame. The lifting mechanism is connected with the seeding frame through a parallelogram mechanism and controls the switching of the seeding mechanism between a working position and a non-working position. A control device is connected with the transverse moving device, the lifting mechanism, the hole forming mechanism and the seed arranging mechanism. When a female parent or a male parent is seeded, the seeding devices corresponding to the male parent rows or the female parent rows are switched to the non-working position, so that the male parent and the female parent are seeded at different times. The application further provides the control method of the corn seed production electric drive seeding machine.

Description

TECHNICAL FIELD

[0001] The present application relates to agricultural machinery technology, in particular to a corn seed production electric drive seeding machine capable of parent and parent-in-law use and parent two-period gap seeding and a control method thereof. BACKGROUND

[0002] Most of the corn hybrid parents have different growth periods, so the seeding period needs to be adjusted according to the growth period of the parent and the parent-in-law to make the parent and the parent-in-law meet in the flowering period. Because of the wrong period seeding of the parent and the parent-in-law, and the two-period parent gap seeding, the existing corn seeding machine is not suitable for corn seed production seeding. At present, there is no special seeding machine available for corn seed production in China, and the manual seeding has low efficiency, poor precision and high cost. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a corn seed production electric drive seeding machine and a control method thereof to solve the above-mentioned defects of the prior art, so as to realize the purposes of parent and parent-in-law seeding with one machine, two-period parent gap seeding, simple and convenient seeding row spacing adjustment, and reliable use.

[0004] In order to achieve the above-mentioned purposes, the present application provides a corn seed production electric drive seeding machine, which comprises:

[0005] a frame;

[0006] a traction frame arranged at the front end of the frame and used for connecting with a traction machine;

[0007] a plurality of seeding devices, which are installed in parallel on the frame through a transverse moving device and located behind the fertilizer arranging device; the distance between adjacent seeding devices is adjusted through the transverse moving device to adjust the seeding row spacing; wherein each seeding device comprises a seeding frame, a seed box, a lifting mechanism, a hole forming mechanism and a seed arranging mechanism; the seed box is installed on the seeding frame; the lifting mechanism is connected with the seeding frame through a parallelogram mechanism; the parallelogram mechanism is connected with the transverse moving device; the hole forming mechanism is installed on the seeding frame corresponding to the seed box; the seed arranging mechanism is installed on the seeding frame corresponding to the hole forming mechanism; the lifting mechanism controls the switching of the seeding mechanism between the working position and the non-working position; and

[0008] a control device connected with the transverse moving device, the lifting mechanism, the hole forming mechanism and the seed arranging mechanism; when seeding the parent-in-law, the control device controls the switching of the seeding device corresponding to the parent row to the non-working position, and records the walking track of the parent-in-law row; when seeding the parent, the recorded walking track of the parent-in-law row is walked, and the switching of the seeding device corresponding to the parent-in-law row to the non-working position is realized, so as to realize the wrong period seeding of the parent and the parent-in-law.

[0009] The corn seed production electric drive seeder, wherein the lifting mechanism is a lifting hydraulic cylinder or a lifting pneumatic cylinder, and the control device controls the lifting hydraulic cylinder or the lifting pneumatic cylinder to quickly adjust the switching of the seeding device between the working position and the non-working position.

[0010] The corn seed production electric drive seeder, wherein when the female line is seeded, the control device records the seeding track through the vehicle-mounted Beidou navigation system and assists the operation when the male line is seeded.

[0011] The corn seed production electric drive seeder, wherein the transverse movement device comprises a transverse movement hydraulic cylinder or a transverse movement pneumatic cylinder and a sliding block, the sliding block is slidingly connected with the frame, the transverse movement hydraulic cylinder or the transverse movement pneumatic cylinder is connected with the control device and the sliding block respectively, and the parallel four-bar mechanism is connected with the sliding block.

[0012] The corn seed production electric drive seeder, wherein the hole forming mechanism comprises:

[0013] A hole forming turntable installed on the seeding frame;

[0014] A hole forming motor installed on the seeding frame and connected with the hole forming turntable; and

[0015] A plurality of hole formers installed at the edge of the hole forming turntable at a set interval, wherein the hole forming turntable is arranged non-coaxially with the seed sowing device of the seed sowing mechanism, and is independently driven by the hole forming motor and the seed sowing motor of the seed sowing mechanism respectively.

[0016] The corn seed production electric drive seeder, wherein the hole former comprises:

[0017] A housing, a limiting shaft, a limiting bearing, a limiting plate, an upper pressing plate and a spring, the housing is installed on the hole forming turntable, the limiting shaft is installed on the housing, the limiting bearing is installed on one end of the limiting shaft, and the upper pressing plate is connected with the other end of the limiting shaft and extends out of the lower end of the housing; the limiting plate abuts against the limiting bearing; the spring is connected with the limiting shaft and the hole forming turntable respectively; when the hole former does not reach the seeding position, the upper pressing plate and the housing are closed under the action of the spring; when the hole former moves to the seeding position, the upper pressing plate and the housing are opened under the action of the limiting plate and perform the hole forming and seeding operation.

[0018] The corn seed production electric drive seeder, wherein the edge of the hole forming turntable is provided with mounting holes of different intervals for adjusting the number and interval of the hole formers; and the plant spacing is adjusted by adjusting the interval of the hole formers on the hole forming turntable, so that the two-phase emptying seeding of the male line is realized.

[0019] The corn seed production electric drive seeder further comprises a soil covering and compacting device, which is installed on the seeding frame corresponding to the hole forming mechanism.

[0020] The control device comprises a logic module, an advancing speed sensor, a hole forming rotating speed sensor and a seed discharge rotating speed sensor, the logic module is connected with the advancing speed sensor, the hole forming rotating speed sensor, the seed discharge rotating speed sensor, a seed discharge motor and a hole forming motor respectively, the advancing speed sensor is installed on the compacting wheel of the soil covering and compacting device, the hole forming rotating speed sensor is installed on the seeding frame corresponding to the hole forming rotating disc, and the seed discharge rotating speed sensor is installed on the seed discharge device; the logic module controls the linear speed of the hole forming device on the hole forming rotating disc to be the same as the advancing speed of the seeder through the signal transmitted by the advancing speed sensor, so that the hole forming device has no relative motion with the ground in the advancing direction of the seeder when the hole forming device is used for seeding in the soil, and the rotating speeds of the seed discharge motor and the hole forming motor are matched.

[0021] In order to better achieve the above-mentioned purpose, the application further provides a control method of a corn seed production electric drive seeder, which comprises the following steps:

[0022] S100, detecting the advancing speed of the seeder during operation and transmitting the collected information to a logic module;

[0023] S200, the logic module controls the linear speed of the hole forming device on the hole forming rotating disc to be the same as the advancing speed of the seeder through the advancing speed information, so that the hole forming device has no relative motion with the ground in the advancing direction of the seeder when the hole forming device is used for seeding in the soil, and the rotating speeds of the hole forming motor and the seed discharge motor are matched;

[0024] S300, the logic module judges whether the seed discharge motor and the hole forming motor have faults through the seed discharge disc rotating speed and the hole forming device rotating speed information, and if the actual rotating speed is greatly different from the target rotating speed, an error is reported;

[0025] S400, when a female parent is seeded, the control device controls the seeding device corresponding to a male parent row to be switched to the non-working position, and records the walking track of the female parent row;

[0026] S500, when a male parent is seeded, the recorded walking track of the female parent row is walked along, and the seeding device corresponding to the female parent row is switched to the non-working position, so that the male parent is planted by interval planting.

[0027] S600, the interval between the hole forming devices on the hole forming rotating disc is changed to adjust the plant spacing, and the male parent is planted by interval planting.

[0028] The technical effect of the application is that:

[0029] The application can accurately and conveniently control the distance between seeding devices, that is, row spacing, meets the use demand of different operation conditions; the working state of the seeding device can be adjusted in real time, meets the use demand of one machine for parent and child seeding; the adjustable plant spacing function makes the seeding machine realize two-period gap seeding of the parent; the walking direction and route are recorded and controlled through the Beidou navigation, the walking track is recorded when seeding the female line, the female track is walked according to the record when seeding the male line, and the seeding precision is improved; not only can meet the agricultural requirements of different period seeding of corn seed production parent and child, two-period gap seeding of the parent, but also can conveniently adjust the plant spacing, row spacing, seeding row number and other operation parameters, can meet the use demand of different operation requirements, solves the problems of low efficiency, poor precision and high cost of manual seeding.

[0030] The application is described in detail below in combination with the drawings and specific embodiments, but is not limited to the application. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a schematic diagram of conventional mode seeding operation for corn seed production;

[0032] Figure 2 It is a schematic diagram of corn seed production seeding operation of an embodiment of the application;

[0033] Figure 3 It is a structural schematic diagram of a corn seed production electric drive seeder of an embodiment of the application;

[0034] Figure 4 It is a front view of Figure 3

[0035] Figure 5 It is a side view of a seeding device of an embodiment of the application;

[0036] Figure 6 It is another side view of Figure 5

[0037] Figure 7 It is a structural schematic diagram of a hole former of an embodiment of the application;

[0038] Figure 8 It is a schematic diagram of a control device of an embodiment of the application;

[0039] Figure 9 It is a control principle diagram of an embodiment of the application.

[0040] Among them, the reference signs

[0041] 1 frame

[0042] 2 traction frame

[0043] 3 fertilizer device

[0044] 4 fan​​

[0045] 5 seeding device

[0046] 51 seeding frame

[0047] 52 parallelogram mechanism

[0048] 53 lifting mechanism

[0049] 54 seed tank

[0050] 55 hole forming mechanism

[0051] 551 hole forming turntable

[0052] 552 hole forming motor

[0053] 553 hole forming device

[0054] 5531 housing

[0055] 5532 limiting plate

[0056] 5533 spring

[0057] 5534 limiting shaft

[0058] 5535 upper pressing plate

[0059] 5536 limiting bearing

[0060] 56 seed metering device

[0061] 57 seed metering motor

[0062] 58 seed guide tube

[0063] 6 transverse moving device

[0064] 61 sliding block

[0065] 7 covering and compacting device

[0066] 8 control device

[0067] 81 logic module

[0068] 82 forward speed sensor

[0069] 83 hole forming rotational speed sensor

[0070] 84 seed metering rotational speed sensor

[0071] 9 first-generation paternal parent

[0072] 10 second-generation paternal parent

[0073] 11 maternal parent DETAILED DESCRIPTION

[0074] The structural principle and working principle of the present application will be described in detail below in combination with the drawings.

[0075] Referring to Figure 1 and Figure 2 , Figure 1 is a schematic diagram of a conventional mode of corn seed production sowing operation, Figure 2 is a schematic diagram of corn seed production sowing operation of an embodiment of the present application. As shown in Figure 1 the conventional mode of corn seed production sowing operation, when sowing the female parent lines first, the sowing lines of the male parent lines are left empty, and the ratio of the male parent lines to the female parent lines is 1:4, that is, one line of the male parent lines is left empty for every four lines of the female parent lines; after a few days, the first-stage male parent 9 sowing is performed on the reserved male parent lines, and the plant spacing is twice the plant spacing of the female parent 11; after a few more days, the second-stage male parent 10 sowing is performed between the first-stage male parent 9 on the male parent lines. As shown in Figure 2 is a schematic diagram of the corn seed production "full star" mode sowing operation of an embodiment of the present application. Because the corn seed production operation in some areas needs to be carried out by laying a film for cultivation, the female parent lines need to be sown on both sides of the film first, and the plant spacing is about 20 cm; after a few days, the first-stage male parent 9 sowing is performed in the middle of the film, and one male parent line is sown every four female parent lines, and the plant spacing of the first-stage male parent 9 is about 90 cm; after a few more days, the second-stage male parent 10 sowing is performed on the male parent lines, and the second-stage male parent 10 is sown between the first-stage male parent 9, and the plant spacing is about 90 cm.

[0076] Referring to Figure 3 and Figure 4 , Figure 3 is a schematic diagram of the structure of the corn seed production electric drive sowing machine of an embodiment of the present application, Figure 4 is Figure 3The corn seed production electric drive seeder of the present application comprises a frame 1, a traction frame 2 arranged at the front end of the frame 1 for connecting with a tractor, a plurality of seeding devices 5 arranged in parallel on the frame 1 through a transverse moving device 6 and located behind the fertilizer arranging device 3, the distance between adjacent seeding devices 5 is adjusted through the transverse moving device 6 to adjust the seeding row distance, wherein each seeding device 5 comprises a seeding frame 51, a seed box 54, a lifting mechanism 53, a hole forming mechanism 55 and a seed arranging mechanism, the seed box 54 is arranged on the seeding frame 51, the lifting mechanism 53 is connected with the seeding frame 51 through a parallelogram mechanism 52, the parallelogram mechanism 52 is connected with the transverse moving device 6, the hole forming mechanism 55 is arranged on the seeding frame 51 corresponding to the seed box 54, the seed arranging mechanism is arranged on the seeding frame 51 corresponding to the hole forming mechanism 55, the lifting mechanism 53 controls the switching of the seeding mechanism between the working position and the non-working position, and a control device 8 is connected with the transverse moving device 6, the lifting mechanism 53, the hole forming mechanism 55 and the seed arranging mechanism respectively, when seeding the female parent 11, the control device 8 controls the switching of the seeding device 5 corresponding to the male parent row to the non-working position and records the walking track of the female parent row, when seeding the male parent, the recorded walking track of the female parent row is followed and the switching of the seeding device 5 corresponding to the female parent row to the non-working position is realized, thus achieving the cross-period seeding of the male and female parents. When seeding the female parent row, the control device 8 records the seeding track through the vehicle-mounted Beidou navigation system and assists the operation when seeding the male parent row. The seeding device 5 can further comprise a fertilizer arranging device 3 and a fan 4 arranged on the frame 1 respectively.

[0077] Referring to Figure 5 and Figure 6 , Figure 5 is a side view of the seeding device 5 of an embodiment of the present application, Figure 6 is Figure 5The other side view of the embodiment. The lifting mechanism 53 of the embodiment is preferably a lifting hydraulic cylinder or a lifting pneumatic cylinder, and the control device 8 controls the lifting hydraulic cylinder or the lifting pneumatic cylinder to quickly adjust the switching of the seeding device 5 between the working position and the non-working position. In the embodiment, the traction frame 2, the fertilizer distribution device 3, the fan 4, and the seeding device 5 are fixed on the machine frame 1 and fixed on the tractor through the traction frame 2. The seeding device 5 is fixed on the machine frame 1 through the sliding block 61, and a horizontal movement hydraulic cylinder or a horizontal movement pneumatic cylinder is arranged between the sliding blocks 61 to control the horizontal movement of the sliding block 61 on the machine frame 1, so as to control the distance between each seeding device 5, thereby quickly changing different seeding row spacings. The horizontal movement device 6 includes the horizontal movement hydraulic cylinder or the horizontal movement pneumatic cylinder and the sliding block 61, the sliding block 61 is in sliding connection with the machine frame 1, the horizontal movement hydraulic cylinder or the horizontal movement pneumatic cylinder is connected with the control device 8 and the sliding block 61 respectively, and the parallel four-bar mechanism 52 is connected with the sliding block 61. The seeding frame 51 is connected with the sliding block 61 through the parallel four-bar mechanism 52; the seed guide tube 58 is installed below the seed metering device 56; and the hole former 553 is installed on the hole forming turntable 551. In order to conveniently control the working state of the seeding device 5, the parallel four-bar mechanism 52 is connected with the lifting hydraulic cylinder or the lifting pneumatic cylinder, and the lifting hydraulic cylinder or the lifting pneumatic cylinder can lift the seeding device 5 through the parallel four-bar mechanism 52. The lifting hydraulic cylinder or the lifting pneumatic cylinder on each seeding device 5 can be independently controlled. When sowing in the female parent row, the seeding device 5 of the female parent row is lowered, the seeding device 5 of the male parent row is lifted, and the sowing track of the female parent row is recorded through the vehicle-mounted Beidou navigation system; when sowing in the male parent row, the seeding device 5 of the male parent row is lowered, the seeding device 5 of the female parent row is lifted, and the sowing operation of the male parent row is performed according to the track recorded when sowing in the female parent row.

[0078] In order to meet the corn breeding agricultural requirements and conveniently adjust the seeding row spacing, different spacing mounting holes are arranged on the edge of the hole forming turntable 551, which are used to adjust the mounting number and spacing of the hole former 553; and the plant spacing is adjusted by adjusting the mounting spacing of the hole former 553 on the hole forming turntable 551, so as to adjust the seeding row spacing, that is, to realize the two-period gap sowing of the male parent.

[0079] Referring to Figure 7 , Figure 7The structure schematic diagram of the hole forming device 553 of an embodiment of the present application. The hole forming mechanism 55 of the embodiment comprises a hole forming turntable 551 installed on the seeding frame 51, a hole forming motor 552 installed on the seeding frame 51 and connected with the hole forming turntable 551, and a plurality of hole forming devices 553 installed at the edge of the hole forming turntable 551 at a set interval; wherein the hole forming turntable 551 is arranged non-coaxially with the seed sowing device 56 and is independently driven by the hole forming motor 552 and the seed sowing motor 57 of the seed sowing mechanism. The hole forming device 553 comprises a shell 5531, a limiting shaft 5534, a limiting bearing 5536, a limiting plate 5532, an upper pressing plate 5535 and a spring 5533, the shell 5531 is installed on the hole forming turntable 551, the limiting shaft 5534 is installed on the shell 5531, the limiting bearing 5536 is installed on one end of the limiting shaft 5534, the upper pressing plate 5535 is connected with the other end of the limiting shaft 5534 and extends out of the lower end of the shell 5531; the limiting plate 5532 abuts against the limiting bearing 5536; the spring 5533 is connected with the limiting shaft 5534 and the hole forming turntable 551 respectively, one end of the spring 5533 is hung on the limiting shaft 5534 and the other end is hung on the bolt connecting the shell 5531 and the hole forming turntable 551; the upper pressing plate 5535 is installed at the lower end of the shell 5531; when the hole forming device 553 does not reach the seeding position, the upper pressing plate 5535 and the shell 5531 are closed under the action of the spring 5533; when the hole forming device 553 moves to the seeding position, the upper pressing plate 5535 and the shell 5531 are opened under the action of the limiting plate 5532 and perform the hole forming and seeding operation. That is, when the hole forming device 553 does not reach the seeding position, the limiting shaft 5534 will deviate towards the axis of the hole forming turntable 551 under the action of the spring 5533 and drive the upper pressing plate 5535 to tightly press on the shell 5531, preventing the seed from falling after entering the hole forming device 553 before reaching the seeding position. When the hole forming device 553 reaches the seeding position, the limiting bearing 5536 is disturbed by the limiting plate 5532 and moves away from the axis of the hole forming turntable 551, thereby driving the upper pressing plate 5535 to move away from the shell 5531 through the limiting shaft 5534, so that the seed can timely fall to the seeding position.

[0080] Referring to Figure 8 , Figure 8The control device 8 of an embodiment of the present application is shown in the figure. The control device 8 of the embodiment comprises a logic module 81, a hole forming speed sensor 83 and a seed row forming speed sensor 84, the logic module 81 is connected with the hole forming speed sensor 83, the seed row forming speed sensor 84, the seed row forming motor 57 and the hole forming motor 552 respectively; the hole forming speed sensor 83 is installed on the seeding frame 51 corresponding to the hole forming disc 551, and the seed row forming speed sensor 84 is installed on the seed row former 56.

[0081] The embodiment also comprises a covering and compacting device 7, which is installed on the seeding frame 51 corresponding to the hole forming mechanism 55; the control device 8 further comprises a forward speed sensor 82, which is installed on the covering wheel of the covering and compacting device 7 and connected with the logic module 81, for detecting the forward speed during the operation of the seeding machine and transmitting the collected speed information to the logic module 81, and the logic module 81 controls the hole forming motor 552 according to the speed information to adjust the rotating speed of the hole forming disc 551, so that the linear speed of the hole former 553 on the hole forming disc 551 is the same as the forward speed of the seeding machine, and the hole former 553 has no relative motion with the ground in the forward direction of the seeding machine during the seeding into the soil; at the same time, the rotating speed of the seed row forming motor 57 is adjusted to match the rotating speed of the hole forming motor 552.

[0082] The forward speed sensor 82 of the embodiment is installed on the rear wheel of the covering and compacting device 7, for detecting the forward speed during the operation of the seeding machine and transmitting the signal to the logic module 81; after the logical algorithm operation, the instruction signal is sent to the hole forming motor 552 to adjust the rotating speed of the hole forming disc 551, so that the linear speed of the hole forming disc 551 is the same as the forward speed of the seeding machine, so as to achieve that the hole former 553 has no relative motion with the ground in the forward direction of the seeding machine during the seeding into the soil; at the same time, after the logical algorithm operation, the instruction signal is sent to the seed row forming motor 57, so that the rotating speed of the seed row forming disc matches the rotating speed of the hole forming disc 551, that is, when the seed falls out of the seed guide pipe 58, it can just fall into the hole former 553 rotating to the position.

[0083] Referring to Figure 9 , Figure 9 The control principle diagram of an embodiment of the present application is shown in the figure. The control method of the corn seed production electric drive seeding machine of the present application comprises the following steps:

[0084] Step S100, detecting the forward speed during the operation of the seeding machine and transmitting the collected information to the logic module;

[0085] Step S200, the logic module controls the linear speed of the hole maker on the hole maker rotating disc to be the same as the forward speed of the seeding machine through the forward speed information, so that the hole maker has no relative motion with the ground in the forward direction of the seeding machine when seeding, and controls the rotating speed of the hole making motor to match the rotating speed of the seed metering motor.

[0086] Step S300, the logic module judges whether the seed metering motor and the hole making motor have faults through the rotating speed of the seed metering disc and the rotating speed of the hole maker, and if the actual rotating speed is too different from the target rotating speed, an error will be reported.

[0087] Step S400, when seeding the female parent, the control device controls the seeding device corresponding to the male parent row to switch to the non-working position, and records the walking track of the female parent row.

[0088] Step S500, when seeding the male parent, the recorded walking track of the female parent row is followed, and the seeding device corresponding to the female parent row is switched to the non-working position, so that the male parent is planted in the two periods of planting.

[0089] Step S600, the spacing between the hole makers on the hole maker rotating disc is changed to adjust the plant spacing, so that the male parent is planted in the two periods of planting. The traction frame 2 is fixed on the frame 1, and when work is needed, the seeding machine is connected with the tractor through the traction frame 2, and the tractor provides forward power and controls the walking direction for the seeding machine. The sliding block 61 is installed on the frame 1, the seeding device 5 is connected with the sliding block 61 through the parallelogram mechanism 52 and fixed on the frame 1, and the sliding block 61 is controlled by the horizontal hydraulic cylinder or the horizontal pneumatic cylinder, so that it can move horizontally and perpendicularly to the forward direction of the seeding machine on the frame 1, so that the seeding row spacing can be adjusted. The parallelogram mechanism 52 of the seeding device 5 is connected with the lifting hydraulic cylinder or the lifting pneumatic cylinder, so that the seeding device 5 not participating in the work can be lifted actively, so that the seeding machine can work only on the female parent row or only on the male parent row; the spacing of the hole makers 553 on the hole maker rotating disc 551 can be manually adjusted, so that the seeding plant spacing can be adjusted to realize the two periods of planting of the male parent.

[0090] The application utilizes hydraulic oil cylinder or air cylinder to control the working state of the seeding device 5, when seeding the female parent 11, the seeding device 5 of the male parent row is lifted to be out of the working state, the advancing direction is controlled through the Beidou navigation, and the walking track when seeding the female parent 11 is recorded; when seeding the male parent, the recorded female parent 11 track is walked, the seeding device 5 of the female parent row is lifted to be out of the working state, the wrong period seeding operation of the male and female parents is realized; meanwhile, the interval of the hole forming device 553 on the hole forming turntable 551 can be manually adjusted to adjust the seeding plant spacing, and the two period male parent spacing seeding operation is realized. The hole forming motor 552 and the seed metering motor 57 are independently driven respectively, and the algorithm is used to control the seed to accurately fall into the hole forming device 553 below when the seed leaves the seed guide pipe 58. Not only the wrong period seeding of the male and female parents and the two period male parent spacing seeding are realized, but also the row spacing and the plant spacing are adjustable, the cost is reduced and the efficiency is increased, and the corn breeding seeding operation suitable for different requirements is realized.

[0091] Of course, the present application can have other various embodiments, and those skilled in the art can make various corresponding changes and modifications according to the present application without departing from the spirit and essence of the present application, but these corresponding changes and modifications should belong to the protection scope of the claims attached to the present application.

Claims

1. A corn seed production electric drive planter characterized by, The utility model relates to a multi-row seed planting machine, comprising: a frame; a traction frame arranged at the front end of the frame and used for connecting with a tractor; a plurality of seeding devices arranged in parallel on the frame through a transverse moving device and located behind the fertilizer arranging device; the distance between adjacent seeding devices is adjusted through the transverse moving device to adjust the seeding row distance; each seeding device comprises a seeding frame, a seed box, a lifting mechanism, a hole forming mechanism and a seed arranging mechanism; the seed box is arranged on the seeding frame; the lifting mechanism is connected with the seeding frame through a parallelogram mechanism; the parallelogram mechanism is connected with the transverse moving device; the hole forming mechanism is arranged on the seeding frame corresponding to the seed box; the seed arranging mechanism is arranged on the seeding frame corresponding to the hole forming mechanism; the lifting mechanism controls the switching of the seeding device between a working position and a non-working position; and a control device connected with the transverse moving device, the lifting mechanism, the hole forming mechanism and the seed arranging mechanism; when planting female parent seeds, the control device controls the switching of the seeding device corresponding to the male parent row to the non-working position and records the female parent row walking track; when planting male parent seeds, the recorded female parent row walking track is followed and the switching of the seeding device corresponding to the female parent row to the non-working position is realized to realize the staggered planting of male and female parent seeds.

2. The electrically powered corn planter of claim 1, wherein, The lifting mechanism is a lifting hydraulic cylinder or a lifting pneumatic cylinder; the control device controls the switching of the seeding device between the working position and the non-working position through the lifting hydraulic cylinder or the lifting pneumatic cylinder.

3. The electrically powered corn planter of claim 1, wherein, When planting female parent seeds, the control device records the planting track through a vehicle-mounted Beidou navigation system and assists the operation when planting male parent seeds.

4. The electrically powered corn planter of claim 1, wherein, The transverse moving device comprises a transverse moving hydraulic cylinder or a transverse moving pneumatic cylinder and a sliding block; the sliding block is slidingly connected with the frame; the transverse moving hydraulic cylinder or the transverse moving pneumatic cylinder is connected with the control device and the sliding block respectively; the parallelogram mechanism is connected with the sliding block.

5. The electrically powered corn planter of claim 1, wherein, The hole forming mechanism comprises: a hole forming turntable arranged on the seeding frame; a hole forming motor arranged on the seeding frame and connected with the hole forming turntable; and a plurality of hole forming devices arranged at the edge of the hole forming turntable at a set interval; The hole forming turntable and the seed arranging device of the seed arranging mechanism are arranged at different coaxial centers and are independently driven by the hole forming motor and the seed arranging motor of the seed arranging mechanism respectively.

6. The electrically powered corn planter of claim 5, wherein, The hole forming device comprises: a shell, a limiting shaft, a limiting bearing, a limiting plate, an upper pressing plate and a spring; the shell is arranged on the hole forming turntable; the limiting shaft is arranged on the shell; the limiting bearing is arranged at one end of the limiting shaft; the upper pressing plate is connected with the other end of the limiting shaft and extends out of the lower end of the shell; the limiting plate is abutted with the limiting bearing; the spring is connected with the limiting shaft and the hole forming turntable respectively; when the hole forming device does not reach the seeding position, the upper pressing plate and the shell are closed under the action of the spring; when the hole forming device moves to the seeding position, the upper pressing plate and the shell are opened under the action of the limiting plate and perform the hole forming and seeding operation.

7. The electrically powered corn planter of claim 5, wherein, The hole forming turntable edge is provided with mounting holes with different intervals for adjusting the number and interval of the hole formers; and the plant spacing is adjusted by adjusting the interval of the hole formers on the hole forming turntable to realize two-period gap sowing of the male parent.

8. The electrically powered corn planter of claim 5, wherein, The device further comprises a covering and pressing device which is installed on the seeding frame corresponding to the hole forming mechanism.

9. The electrically powered corn planter of claim 8, wherein, The control device comprises a logic module, an advancing speed sensor, a hole forming rotating speed sensor and a seed metering rotating speed sensor, the logic module being connected with the advancing speed sensor, the hole forming rotating speed sensor, the seed metering rotating speed sensor, a seed metering motor and a hole forming motor respectively; the advancing speed sensor is installed on a pressing wheel of the covering and pressing device, the hole forming rotating speed sensor is installed on the seeding frame corresponding to the hole forming turntable, and the seed metering rotating speed sensor is installed on the seed metering device; the logic module controls the linear speed of the hole formers on the hole forming turntable to be the same as the advancing speed of the seeding machine through the signal transmitted by the advancing speed sensor, so that the hole formers have no relative motion with the ground in the advancing direction of the seeding machine when sowing into the soil; and the rotating speeds of the seed metering motor and the hole forming motor are controlled to be matched.

10. A control method for a corn seed production electric drive planter, characterized by, The corn seed production electric seeding machine comprises the following steps: S100, detecting the advancing speed of the seeding machine when sowing and transmitting the collected information to the logic module; S200, the logic module controls the linear speed of the hole formers on the hole forming turntable to be the same as the advancing speed of the seeding machine through the advancing speed information, so that the hole formers have no relative motion with the ground in the advancing direction of the seeding machine when sowing into the soil, and the rotating speeds of the hole forming motor and the seed metering motor are controlled to be matched; S300, the logic module judges whether the hole forming motor and the seed metering motor have faults through the seed metering disc rotating speed and the hole former rotating speed information, and an error is reported if the actual rotating speed and the target rotating speed are too different; S400, when sowing the female parent, the control device controls the seeding device corresponding to the male parent row to switch to the non-working position, and records the walking track of the female parent row; S500, when sowing the male parent, the recorded walking track of the female parent row is followed, and the seeding device corresponding to the female parent row is switched to the non-working position, so that the male and female parents are sowed at different periods; and S600, the interval between the hole formers on the hole forming turntable is changed to adjust the plant spacing, so that the male parent is sowed at two-period gap.

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