Insertion type dibbler with adjustable planting distance

Abstract

The invention provides a plug-in adjustable planting distance dibbler which comprises a mounting frame, the mounting frame comprises a left mounting base frame and a right mounting base frame, the left end and the right end of a movable adjusting frame are slidably arranged in first sliding grooves of the two mounting base frames respectively, and hole forming assemblies are arranged at the left end and the right end of the movable adjusting frame respectively. Each group of hole forming assembly comprises a seed taking device, a telescopic sleeve and a hole forming device, the seed taking device comprises a seed box and a seed guide pipe, the seed guide pipe is fixed on the movable adjusting frame, the telescopic sleeve is sleeved on the seed guide pipe in a sliding manner, and the hole forming device is arranged at the bottom of the telescopic sleeve; a driving mechanism and an adjusting mechanism are arranged on the mounting frame, and the driving mechanism drives the movable adjusting frame and the left two sets of hole forming assemblies to move front and back together; the adjusting mechanism is matched with the driving mechanism to drive the telescopic sleeves in the two groups of hole forming assemblies to slide up and down so as to perform hole forming and seeding operation. The seeder has the advantages that zero-speed automatic hole forming and seeding of the seeder are realized, and meanwhile, the seeding plant spacing can be flexibly and effectively adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery and equipment, and more specifically to an inserted planting hole seeder with adjustable plant spacing. Background Art

[0002] Hole seeding is a major method of precision seeding of crops. It can better meet the requirements of reasonable field distribution and uniform plant spacing, and avoid reseeding, missing seeding and damage to seeds during seeding. At present, hole seeding machines are mainly based on hole seeding wheels. During operation, the hole seeding wheel relies on the friction between the hole seeding wheel and the ground to drive the wheel body to rotate, and relies on its own weight to squeeze the hole-forming components into the soil to complete the hole-forming and sowing process. At the same time, the sowing plant spacing is determined by the spacing of the hole-forming components on the wheel body. Therefore, there are still problems in its operation process, such as poor adaptability of the hole-forming components into the soil, untimely opening of the hole-forming components, and difficulty in adjusting the hole spacing, which leads to poor sowing adaptability, unstable sowing quality and low versatility of the hole seeding machine. When the crop planting mode is different, it is usually necessary to replace the sowing components in real time to meet the sowing needs of crops under different planting modes. Since the replacement process of the hole seeding machine operation components is relatively cumbersome, the use efficiency of the sowing device is reduced and the labor intensity is increased. How to improve the operation quality of the hole seeding machine and enhance the versatility, reliability and use efficiency of the sowing device is of great significance to the development and promotion of sowing machines. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an insertable planting hole seeder with adjustable plant spacing to achieve zero-speed autonomous hole formation and sowing of the seeder, while flexibly and effectively adjusting the sowing plant spacing according to the needs of crop planting agronomy.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] An inserted planting plant spacing adjustable hole sower comprises a mounting frame, wherein the mounting frame comprises two left and right mounting base frames, the two mounting base frames are respectively provided with first slide grooves extending in the front-rear direction, the left and right ends of the movable adjustment frame are respectively slidably arranged in the first slide grooves of the two mounting base frames and can slide forward and backward along the first slide grooves, the left and right ends of the movable adjustment frame are respectively provided with hole forming components, each group of hole forming components comprises a seed taker, a telescopic sleeve and a hole forming device which are sequentially arranged from top to bottom, the seed taker comprises a seed box and a seed guide tube which are fixedly connected up and down, the seed guide tube is fixed on the movable adjustment frame, the telescopic sleeve is slidably sleeved on the seed guide tube and can slide up and down relative to the seed guide tube, the hole forming device is installed at the bottom of the telescopic sleeve and is located below the mounting frame;

[0006] The mounting frame is provided with a driving mechanism and an adjusting mechanism, and the driving mechanism drives the movable adjusting frame to slide forward and backward, thereby driving the two left groups of hole-forming assemblies on the movable adjusting frame to move forward and backward together; the adjusting mechanism cooperates with the driving mechanism to drive the telescopic sleeves in the two groups of hole-forming assemblies to slide up and down along their respective seed guide tubes to perform hole-forming and sowing operations.

[0007] As a preferred solution of the above-mentioned seed drill, the driving mechanism includes a driver and a transmission gear train, the transmission gear train includes a driving wheel train, the driving wheel train includes a driving shaft extending left and right and driving gears fixedly installed on the left and right ends of the driving shaft, and the tops of the left and right ends of the movable adjustment frame are respectively provided with push-pull racks extending in the front-to-back direction, and the two driving gears are respectively meshed with the two push-pull racks. The driving shaft of the driving wheel train is driven to rotate by the driver, thereby driving the driving gears at both ends of the driving shaft to rotate synchronously, and then driving the two push-pull racks to move forward and backward, thereby realizing the forward and backward movement of the movable adjustment frame.

[0008] As a preferred solution of the above-mentioned seed drill, the transmission gear train also includes a main transmission gear train and a reversing gear train, the main transmission gear train includes a main shaft and a transmission gear set fixed on the main shaft, the transmission gear set includes a main gear and a left transmission gear and a right transmission gear located on the left and right sides of the main gear, the left and right transmission gears are incomplete gears with partial gear teeth, and the toothed parts of the left and right transmission gears are staggered along the circumferential direction; the reversing gear train includes a reversing shaft and a reversing gear set fixed on the reversing shaft, the reversing gear set includes a driven gear and a reversing gear; an adjusting gear set is also fixed on the driving shaft, and the adjusting gear set includes left and right adjusting gears;

[0009] The main shaft and the driving shaft are both shafts extending left and right, the main shaft and the driving shaft are arranged at intervals in the front-to-back direction, and the reversing shaft is located below between the main shaft and the driving shaft;

[0010] The left adjusting gear meshes with the toothed part of the left transmission gear, the right adjusting gear meshes with the driven gear, and the reversing gear meshes with the toothed part of the right transmission gear. The main gear is driven to rotate through the driver, and under the action of the transmission gear train, the intermittent forward and reverse rotation of the two driving gears is finally achieved.

[0011] As a preferred solution of the above-mentioned hole sowing device, the adjustment mechanism includes an adjustment shaft and two hole-forming gears and two adjustment wheels respectively fixedly mounted on the adjustment shaft, the movable adjustment frame includes two movable frames arranged opposite to each other on the left and right sides, the two movable frames are respectively slidably mounted in the first slide grooves of the two mounting base frames, the adjustment shaft extends left and right and the left and right ends are respectively rotatably mounted on the two movable frames, the two hole-forming gears are located between the two movable frames, and the two adjustment wheels are respectively located outside the two movable frames;

[0012] The outer sides of the two adjusting wheels are respectively provided with eccentric adjusting rods, the telescopic sleeves of the two groups of cavitation assemblies are respectively located on the outer sides of the two adjusting wheels, the inner sides of the two telescopic sleeves are respectively provided with adjusting slide grooves extending in the front-back direction, the adjusting rods of the two adjusting wheels are respectively slidably matched with the adjusting slide grooves of the two telescopic sleeves, the adjusting rods can only slide forward and backward in the corresponding adjusting slide grooves, and when the adjusting wheels rotate, the telescopic sleeves are driven by the adjusting rods to slide up and down along their respective seed guide tubes;

[0013] A group of movable adjustment devices are respectively provided at the bottom of the two mounting bases, and the left and right groups of movable adjustment devices are respectively located above the two hole-forming gears, and each group of movable adjustment devices includes a swing rack extending in the front-back direction, and the tops of the front and rear ends of the swing rack are respectively suspended and installed on the mounting base through swing connecting rods, and the upper and lower ends of each swing connecting rod are respectively hinged to the mounting base and the swing rack, and a limiting structure for limiting the extreme position of the swing rack swinging backward is provided on the mounting base, and the swing racks of the two groups of movable adjustment devices are respectively meshed with the two hole-forming gears;

[0014] When the movable adjustment frame moves backward, the swing rack swings backward, and is restricted from continuing to swing backward by the limit structure. The swing racks of the two sets of movable adjustment devices drive the two hole-forming gears to rotate, thereby driving the adjustment shaft and the adjustment wheels at both ends of the adjustment shaft to rotate synchronously, and the two telescopic sleeves are driven to slide vertically respectively by the eccentric adjustment rods on the two adjustment wheels.

[0015] As a preferred embodiment of the above-mentioned hole drill, a drop hole is provided at the bottom of the seed box, and a seed picking assembly is provided below the drop hole of the seed box, the seed picking assembly includes a seed picking wheel located in the seed guide tube, the seed picking wheel is rotatably mounted on the seed guide tube through the seed picking wheel shafts at both ends and a first torsion spring, under the action of the first torsion spring, the seed picking hole on the seed picking wheel faces upward toward the inner cavity of the seed box, one of the seed picking wheel shafts extends out of the seed guide tube and is fixedly mounted with a seed picking gear, and the two adjusting wheels are both incomplete gears with partial gear teeth, and the two seed picking gears are respectively meshed with the toothed parts of the two adjusting wheels, and when the toothed parts of the adjusting wheels are meshed with the seed picking gears, the rotating adjusting wheel drives the seed picking gears to rotate, thereby driving the seed picking wheel shaft and the seed picking wheel to rotate synchronously, so that the seed picking hole on the seed picking wheel is directed toward or away from the inner cavity of the seed box, thereby realizing the seed picking action.

[0016] As a preferred embodiment of the above-mentioned hole sowing device, the hole former is composed of two fixed claws and a movable claw in the shape of a semi-conical shell to form a complete conical shell, and the pointed end of the hole former faces downward, and hinge rods are respectively provided on the left and right sides of the mounting circular tube at the lower end of the telescopic sleeve, and the left and right sides of the upper end of the fixed claw are respectively fixed on the two hinge rods of the mounting circular tube, and the left and right sides of the upper end of the movable claw are respectively hinged on the two hinge rods of the mounting circular tube through hinge sleeves, and an extrusion rod extending obliquely upward is fixed on one of the hinge sleeves, and the extrusion rod is provided with a bent end, and a second torsion spring is provided between the hinge rod and the hinge sleeve. In a natural state, under the action of the second torsion spring, the movable claw fits with the fixed claw so that the hole former is in a closed state, and when the bent end of the extrusion rod is squeezed by external force, the movable claw will be driven to rotate in a direction away from the fixed claw, so that the hole former is opened.

[0017] As a preferred embodiment of the above-mentioned hole drill, an extrusion wheel shaft extending in the left-right direction is provided on one side of the lower section of the seed guide tube, a vertically extending avoidance long groove is opened on one side of the telescopic sleeve, the extrusion wheel shaft extends from the avoidance long groove of the telescopic sleeve and is provided with an extrusion wheel, and as the hole drill moves up and down, the curved end of the extrusion rod of the corresponding hole drill is squeezed through the circumference of the extrusion wheel.

[0018] As a preferred embodiment of the above-mentioned seed drill, the limiting structure of each group of movable adjustment devices includes a limiting rod, which is located behind the rear swing link. The limiting rod is used to block the rear swing link to limit the extreme position of the swing rack's backward swing.

[0019] As a preferred solution of the above-mentioned seed drill, the driver includes a motor, and a main driving gear is fixedly mounted on the output shaft of the motor, and the main driving gear is meshed with the main gear.

[0020] As a preferred solution for the above-mentioned seed drill, the mounting frame is a rectangular frame structure, and the left and right sides of the rectangular frame structure serve as left and right mounting bases. Mounting brackets are respectively provided on the left and right sides of the mounting frame, and the left and right ends of the main shaft, the driving shaft and the reversing shaft are respectively rotatably mounted on the two mounting brackets; a support seat is provided on the front side of the mounting frame, and the gear shaft of the main driving gear is rotatably mounted on the support seat.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] The present invention provides an insertable planting planter with adjustable plant spacing, which enables the planter to form a hole at the same speed and in the opposite direction to the forward direction of the machine when forming a hole and sowing, so as to achieve zero-speed hole forming and sowing of the planter in the forward direction of the machine, ensure the quality of the hole and the accuracy of the sowing position, and thus improve the sowing quality of the sowing machine. At the same time, the planter is designed with an autonomous burrowing and opening mechanism to ensure the quality of the burrowing and sowing of the burrowing component, solve the problems of the difficulty of burrowing and the failure to form a hole under certain conditions when the traditional planter uses its own weight to burrow into the soil and the contact with the ground to squeeze the burrowing component to start sowing, and the omission of sowing caused by the untimely or inability to open the burrowing component, and improve the sowing quality of the sowing machine. In addition, the driver of the present invention adopts a motor, which can drive the burrowing component to perform burrowing and sowing in sequence by controlling the intermittent period of the motor, and realize the flexible adjustment of any sowing spacing within a certain plant spacing range by controlling the intermittent time of two adjacent burrowings, so as to solve the problems of complex use, low efficiency, poor operation flexibility, and poor adaptability caused by the disassembly and assembly of the burrowing component of the traditional planter to meet the needs of different planting spacing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the overall structure of the present invention from another perspective.

[0025] Figure 3 It is a structural schematic diagram of the mounting frame of the present invention.

[0026] Figure 4 It is a structural schematic diagram of the movable adjustment frame of the present invention.

[0027] Figure 5 It is a schematic structural diagram of the transmission gear system of the present invention.

[0028] Figure 6 It is a structural schematic diagram of the main transmission gear train of the present invention.

[0029] Figure 7 It is a structural schematic diagram of a seed extractor of the present invention.

[0030] Figure 8 It is a three-dimensional half-section view of a seed extractor of the present invention.

[0031] Fig. 9 It is a structural schematic diagram of the seed taking component of the present invention.

[0032] Fig.10 It is a structural schematic diagram of the adjusting wheel of the present invention.

[0033] Fig.11 It is a schematic structural diagram of the swing rack of the present invention.

[0034] Fig.12 It is a structural schematic diagram of the telescopic sleeve of the present invention.

[0035] Fig.13 It is a schematic structural diagram of the cavitation device of the present invention.

[0036] Fig.14 It is a schematic diagram of the disassembled structure of the cavitation device of the present invention.

[0037] In the figure, 1 is a mounting frame; 2 is a first chute; 3 is a movable adjustment frame; 4 is a seed taker; 5 is a telescopic sleeve; 6 is a hole forming device; 7 is a seed box; 8 is a seed guide tube; 9 is a driving shaft; 10 is a driving gear; 11 is a push-pull rack; 12 is a main shaft; 13 is a main gear; 14 is a left transmission gear; 15 is a right transmission gear; 16 is a reversing shaft; 17 is a mounting bracket; 18 is a driven gear; 19 is a reversing gear; 20 is a left adjustment gear; 21 is a right adjustment gear; 22 is a motor; 23 is a main driving gear; 24 is a main driving gear; 25 is a main driving gear; 26 is a main driving gear; 27 is a main driving gear; 28 is a main driving gear; 29 is a main driving gear; 30 is a main driving gear; 31 is a main driving gear; 32 is a main driving gear; 33 is a main driving gear; 34 is a main driving gear; 35 is a main driving gear; 36 is a main driving gear; 37 is a main driving gear; 38 is a main driving gear; 39 is a main driving gear; 40 is a main driving gear; 41 is a main driving gear; 42 is a main driving gear; 43 is a main driving gear; 44 is a main driving gear; 45 is a main driving gear; 46 is a main driving gear; 47 is a main driving gear; 48 is a main driving gear; 49 is a main driving gear; 50 is a main driving gear; 51 is a main driving gear; 52 is a main driving gear; 53 is a main driving gear; 54 is a main driving gear; 55 is a main driving gear; 56 is a main driving gear; 57 is a main driving gear; 58 is a main driving gear Support seat; 25 adjustment shaft; 26 hole forming gear; 27 adjustment wheel; 28 movable frame; 29 adjustment rod; 30 adjustment slide; 31 swing rack; 32 swing connecting rod; 33 limit rod; 34 drop hole; 35 seed removal wheel; 36 seed removal wheel shaft; 37 seed removal hole; 38 seed removal gear; 39 fixed claw; 40 movable claw; 41 installation round tube; 42 hinged rod; 43 hinged sleeve; 44 extrusion rod; 45 bent end; 46 extrusion wheel; 47 hinged column. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are 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.

[0039] Please refer to Figures 1 to 14 The present embodiment provides an inserted planting spacing adjustable hole sowing device, including a mounting frame 1, the mounting frame 1 includes two left and right mounting base frames, the mounting frame 1 is a rectangular frame structure, the left and right frames of the rectangular frame structure serve as the left and right mounting base frames, the two mounting base frames are respectively provided with first slide grooves 2 extending along the front and rear directions, the left and right ends of the movable adjustment frame 3 are respectively slidably arranged in the first slide grooves 2 of the two mounting base frames and can slide forward and backward along the first slide grooves 2, the left and right ends of the movable adjustment frame 3 are respectively provided with hole forming components, each group of hole forming components includes a seed taker 4, a telescopic sleeve 5 and a hole former 6 which are arranged in sequence from top to bottom, the seed taker 4 includes a seed box 7 and a seed guide tube 8 fixedly connected up and down, the seed guide tube 8 is fixed on the movable adjustment frame 3, the telescopic sleeve 5 is slidably sleeved on the seed guide tube 8 and can slide up and down relative to the seed guide tube 8, and the hole former 6 is installed at the bottom of the telescopic sleeve 5 and is located below the mounting frame 1.

[0040] The mounting frame 1 is provided with a driving mechanism and an adjusting mechanism, and the driving mechanism drives the movable adjusting frame 3 to slide forward and backward, thereby driving the left two groups of hole-forming assemblies on the movable adjusting frame 3 to move forward and backward together; through the cooperation of the adjusting mechanism and the driving mechanism, the telescopic sleeves 5 in the two groups of hole-forming assemblies are driven to slide up and down along their respective seed guide tubes 8 to perform hole-forming and sowing operations.

[0041] The driving mechanism includes a driver and a transmission gear train. The transmission gear train includes a driving wheel train. The driving wheel train includes a driving shaft 9 extending left and right and driving gears 10 fixedly installed at the left and right ends of the driving shaft 9. The tops of the left and right ends of the movable adjustment frame 3 are respectively provided with push-pull racks 11 extending in the front-to-back direction. The two driving gears 10 are respectively meshed with the two push-pull racks 11. The driving shaft 9 of the driving wheel train is driven to rotate by the driver, thereby driving the driving gears 10 at both ends of the driving shaft 9 to rotate synchronously, and then driving the two push-pull racks 11 to move forward and backward, thereby realizing the forward and backward movement of the movable adjustment frame 3.

[0042] The transmission gear train also includes a main transmission gear train and a reversing gear train. The main transmission gear train includes a main shaft 12 and a transmission gear set fixed on the main shaft 12. The transmission gear set includes a main gear 13 and a left transmission gear 14 and a right transmission gear 15 located on the left and right sides of the main gear 13. The left and right transmission gears are incomplete gears with partial gear teeth, and the toothed parts of the left and right transmission gears are staggered along the circumferential direction; the reversing gear train includes a reversing shaft 16 and a reversing gear set fixed on the reversing shaft 16. Mounting brackets 17 are respectively provided on the left and right sides of the mounting frame 1. The left and right ends of the main shaft 12, the driving shaft 9 and the reversing shaft 16 are rotatably mounted on the two mounting brackets 17 respectively; the reversing gear set includes a driven gear 18 and a reversing gear 19; an adjusting gear set is also fixed on the driving shaft 9, and the adjusting gear set includes a left adjusting gear 20 and a right adjusting gear 21 arranged on the left and right. The main shaft 12 and the driving shaft 9 are both shafts extending left and right. The main shaft 12 and the driving shaft 9 are arranged at intervals in the front-to-back direction. The reversing shaft 16 is located below the main shaft 12 and the driving shaft 9. The left adjusting gear 20 is meshed with the toothed portion of the left transmission gear 14, the right adjusting gear 21 is meshed with the driven gear 18, and the reversing gear 19 is meshed with the toothed portion of the right transmission gear 15. The driver includes a motor 22, and a main driving gear 23 is fixedly mounted on the output shaft of the motor 22. A support seat 24 is provided on the front side of the mounting frame 1. The gear shaft of the main driving gear 23 is rotatably mounted on the support seat 24, and the main driving gear 23 is meshed with the main gear 13. The main driving gear 23 is driven to rotate by the motor 22, and the main driving gear 23 drives the main gear 13 meshed therewith to rotate. Under the action of the transmission gear system, the intermittent forward and reverse rotation of the two driving gears 10 is finally realized.

[0043] The adjustment mechanism includes an adjustment shaft 25 and two hole-forming gears 26 and two adjustment wheels 27 respectively fixedly mounted on the adjustment shaft 25. The movable adjustment frame 3 includes two movable frames 28 arranged opposite to each other on the left and right sides. The inner sides of the two movable frames 28 are respectively slidably mounted in the first slide grooves 2 of the two mounting base frames through sliding plates. The adjustment shaft 25 extends left and right and the left and right ends are respectively rotatably mounted on the two movable frames 28. The two hole-forming gears 26 are located between the two movable frames 28, and the two adjustment wheels 27 are respectively located outside the two movable frames 28. Eccentric adjustment rods 29 are respectively arranged on the outer sides of the two adjustment wheels 27. The telescopic sleeves 5 of the two sets of hole-forming assemblies are respectively located on the outer sides of the two adjustment wheels 27. The inner sides of the two telescopic sleeves 5 are respectively provided with adjustment slide grooves 30 extending in the front-back direction. The adjustment rods 29 of the two adjustment wheels 27 are respectively slidably matched with the adjustment slide grooves 30 of the two telescopic sleeves 5. The adjustment rods 29 can only slide forward and backward in the corresponding adjustment slide grooves 30. Therefore, when the adjustment wheel 27 rotates, the telescopic sleeves 5 are driven by the adjustment rods 29 to slide up and down along their respective seed guide tubes 8. A group of movable adjustment devices are respectively provided at the bottom of the two mounting bases, and the left and right groups of movable adjustment devices are respectively located above the two hole-forming gears 26. Each group of movable adjustment devices includes a swing rack 31 extending in the front-to-back direction. The tops of the front and rear ends of the swing rack 31 are respectively suspended on the hinged columns 47 of the mounting base through swing connecting rods 32. The upper and lower ends of each swing connecting rod 32 are respectively hinged to the corresponding hinged columns 47 and the swing rack 31 on the mounting base. The mounting base is provided with a limit position for limiting the extreme position of the swing rack 31 to swing backward. The limiting structure of each set of mobile adjustment devices includes a limiting rod 33, which is located behind the rear swing link 32. The limiting rod 33 blocks the rear swing link 32 to limit the swing rack 31 to the extreme position of the swinging backward, and restricts the swing rack 31 from continuing to swing backward, so that when the hole forming gear 26 moves backward, the swing rack 31 meshes with the hole forming gear 26, and then when the hole forming gear 26 moves backward, the swing rack 31 can drive the hole forming gear 26 to rotate, and then drive the adjusting wheel 27 to rotate. The swing racks 31 of the two sets of mobile adjustment devices mesh with the two hole forming gears 26 respectively.

[0044] During the backward movement of the movable adjustment frame 3, the swing rack 31 swings backward, and is restricted from continuing to swing backward by the limit structure. The swing racks 31 of the two sets of movable adjustment devices drive the two hole-forming gears 26 to rotate, thereby driving the adjustment shaft 25 and the adjustment wheels 27 at both ends of the adjustment shaft 25 to rotate synchronously, and the eccentric adjustment rods 29 on the two adjustment wheels 27 respectively drive the two telescopic sleeves 5 to slide vertically.

[0045] When the movable adjustment frame 3 moves forward, the hole forming gear 26 moves forward and can push the swing rack 31 to swing forward. Since there is no structure to limit the extreme position of the forward swing of the swing rack 31, the swing rack 31 can be disengaged from the hole forming gear 26 and will not drive the hole forming gear 26 to rotate.

[0046] A feeding hole 34 is provided at the bottom of the seed box 7, and a seed taking assembly is provided below the feeding hole 34 of the seed box 7. The seed taking assembly includes a seed taking wheel 35 located in the seed guide tube 8. The seed taking wheel 35 is rotatably mounted on the seed guide tube 8 through the seed taking wheel shafts 36 at both ends and a first torsion spring. Under the action of the first torsion spring, the seed taking hole 37 on the seed taking wheel 35 faces upward toward the inner cavity of the seed box 7. One of the seed taking wheel shafts 36 extends out of the seed guide tube 8 and is fixedly fitted with a seed taking gear 38. The two adjusting wheels 27 are both incomplete gears with partial gear teeth. The two seed taking gears 38 are respectively meshed with the toothed parts of the two adjusting wheels 27. When the toothed parts of the adjusting wheels 27 are meshed with the seed taking gears 38, the rotating adjusting wheels 27 drive the seed taking gears 38 to rotate, thereby driving the seed taking wheel shaft 36 and the seed taking wheel 35 to rotate synchronously, so that the seed taking hole 37 on the seed taking wheel 35 is directed toward or away from the inner cavity of the seed box 7, thereby realizing the seed taking action.

[0047] The hole former 6 is formed by two semi-conical shell-shaped fixed claws 39 and movable claws 40 that are combined to form a complete conical shell, and the pointed end of the hole former 6 faces downward. The left and right sides of the mounting tube 41 at the lower end of the telescopic sleeve 5 are respectively provided with hinged rods 42, and the left and right sides of the upper end of the fixed claw 39 are respectively fixed on the two hinged rods 42 of the mounting tube 41. The left and right sides of the upper end of the movable claw 40 are respectively hinged on the two hinged rods 42 of the mounting tube 41 through hinge sleeves 43. An extrusion rod 44 extending obliquely upward is fixed on one of the hinge sleeves 43, and a bent end 45 is provided on the extrusion rod 44. A second torsion spring is provided between the hinge rod 42 and the hinge sleeve 43. In the natural state, under the action of the second torsion spring, the movable claw 40 fits with the fixed claw 39 so that the hole former 6 is in a closed state. When the bent end 45 of the extrusion rod 44 is squeezed by external force, the movable claw 40 will be driven to rotate in a direction away from the fixed claw 39, so that the hole former 6 is opened.

[0048] One side of the lower section of the seed guide tube 8 is provided with an extrusion wheel shaft extending in the left-right direction, and one side of the telescopic sleeve 5 is provided with a vertically extending avoidance slot. The extrusion wheel shaft extends from the avoidance slot of the telescopic sleeve 5 and is provided with an extrusion wheel 46. As the hole former 6 moves up and down, the curved end 45 of the extrusion rod 44 of the corresponding hole former 6 is extruded through the circumference of the extrusion wheel 46.

[0049] Before use, the seeder is fixedly mounted on the implement through the mounting frame 1. Before operation, the operating parameters of the motor 22 are adjusted according to the operating speed of the implement and the needs of the planting mode of the crop. The motor 22 is controlled by a single chip microcomputer, which controls the speed of the motor 22, the angle of each rotation, and the length of the intermittent stop time between two adjacent rotations, so as to achieve autonomous zero-speed hole formation, sowing, and adjustment of the sowing spacing. The main drive gear 23 fixedly mounted on the motor 22 drives the main gear 13 to rotate, and the main transmission gear 13 drives the main transmission gear train to rotate. The left transmission gear 14 and the right transmission gear 15 on the main transmission gear train respectively drive the driving gears 10 on both sides of the driving gear train to rotate forward and reverse, and then the push-pull rack 11 meshed with it drives the movable adjustment frame 3 to slide forward and backward along the first slide groove 2 on both sides of the mounting frame 1. The speed determined by the motor 22 should be sufficient to make the movable adjustment frame 3 move forward and backward along the first slide groove 2 on the mounting frame 1 The speed is the same as the forward speed of the implement, so that when the movable adjustment frame 3 moves along the mounting frame 1, the speed of the first slide groove 2 is the same as the forward speed of the implement. When the frame 1 moves backward, the left and right hole formers 6 are both stationary relative to the ground, realizing zero-speed hole forming and sowing. The setting of each rotation angle determined by the motor 22 can drive the main gear 13 to rotate one circle, that is, drive the corresponding hole former 6 to complete a hole forming and sowing process. The setting of the rotation intermittent stop time is determined by the sowing spacing and the forward speed of the machine, and can be used to adjust the size of the sowing spacing. The longer the rotation intermittent stop time, the larger the sowing spacing. Conversely, the shorter the rotation intermittent stop time, the smaller the sowing spacing. According to the machine operation requirements, the speed of the motor 22, the rotation angle each time and the intermittent stop time between two adjacent rotations are set first.

[0050] When the machine moves forward for sowing, the motor 22 is turned on, and the motor 22 drives the main gear 13 to drive the main transmission gear system to rotate. Since the left transmission gear 14 and the right transmission gear 15 are gears with half-circle gear teeth, the toothed parts of the two are staggered. When the gear part of the left transmission gear 14 meshes with the left adjustment gear 20 of the driving gear system, the left adjustment gear 20 is driven to rotate, and the driving gears 10 at both ends are driven to rotate counterclockwise through the driving shaft 9. The two driving gears 10 drive the two push-pull racks 11 meshed therewith to push the movable adjustment frame 3 to move backward along the first slide grooves 2 on the left and right sides of the mounting frame 1, thereby driving the two groups of hole-forming components installed thereon to move backward, and the speed of the backward movement is equal to the forward speed of the machine, so that the relative speed of the left and right hole-forming devices 6 to the ground is zero; At the same time, the two hole-forming gears 26 installed at the lower end of the movable adjusting frame 3 drive the two meshing swing racks 31 to move backward together. When the swing connecting rod 32 on the rear side contacts the limit rod 33, the swing rack 31 is restricted from continuing to swing backward, and the hole-forming gear 26 continues to move backward. The swing rack 31 meshes with the hole-forming gear 26. Under the action of the swing rack 31, the hole-forming gear 26 will rotate, thereby driving the adjusting shaft 25 to rotate, and then driving the left adjusting wheel 27 and the right adjusting wheel 27 fixed thereon to rotate synchronously. During the rotation of the adjusting wheel 27, when the toothed part of the adjusting wheel 27 meshes with the seed taking gear 38, it will drive the seed taking wheel 35 to rotate, and bring the seeds in the seed taking holes 37 thereon out of the seed box 7, and introduce them into the hole-forming device 6 corresponding to the lower end through the seed guide tube 8. When the seeding wheel 35 rotates one circle, the toothed part of the adjusting wheel 27 is disengaged from the seeding gear 38, and the seeding wheel 35 is rotated back to the seed box 7 under the action of the first torsion spring to prepare for the next seeding; at the same time, during the rotation of the left and right adjusting wheels 27, the eccentric adjusting rods 29 on the two adjusting wheels 27 respectively drive the two telescopic sleeves 5 to slide downward, thereby driving the hole former 6 installed thereon to move downward at zero speed and vertically enter the soil to form a hole. During the downward movement of the hole former 6, when the curved end 45 of the squeezing rod 44 on it contacts the squeezing wheel 46 on the corresponding seed guide tube 8, the squeezing rod 44 is squeezed, and the movable claw 40 on the hole former 6 gradually opens backward, sowing the seeds in the hole former 6 into the hole. When the movable adjusting frame 3 continues to move backward along the first sliding grooves 2 on the left and right sides of the mounting frame 1, the two hole forming components continue to move backward, the left adjusting wheel 27 and the right adjusting wheel 27 continue to rotate, and the eccentric adjusting rods 29 on the two adjusting wheels 27 drive the telescopic sleeve 5 to slide upward along the seed guide tube 8, and at the same time drive the left hole former 6 and the right hole former 6 to move upward out of the hole hole. During the upward movement of the hole former 6, the extrusion rod 44 thereon gradually disengages from the extrusion wheel 46 on the seed guide tube 8, and the movable claw 40 of the hole former 6 is closed under the action of the second torsion spring.When the toothed portion of the right transmission gear 15 meshes with the reversing gear 19 on the right side of the reversing shaft 16, the toothed portion of the left transmission gear 14 disengages from the left adjusting gear 20 of the driving gear train, and the left and right adjusting wheels 27 and the left and right hole-forming devices 6 are reset. At this time, the adjusting wheel 27 is reset relative to the seed taking gear 38 and returns to the initial relative position to prepare for the next seed taking. The main transmission gear train drives the right adjusting gear 21 of the driving gear train to rotate in the opposite direction through the reversing gear 19 on the reversing gear train, thereby driving the driving shaft 9 and the driving gears 10 at both ends thereof to rotate in the opposite direction, and then pushing the movable adjusting frame 3 to move forward along the first slide grooves 2 on the left and right sides of the mounting frame 1 through the meshing push-pull racks 11 thereon, thereby driving the two groups of hole-forming components to move forward, and the hole-forming gear 26 stops rotating. At the same time, the two hole-forming gears 26 push the two swing racks 31 thereon to swing forward, so that the swing racks 31 gradually disengage from the hole-forming gears 26. When the driving gear 10 pushes the movable adjusting frame 3 to move to the front end to reset through the push-pull racks 11, the motor 22 stops rotating to complete a hole-forming and sowing process. When the rotation intermittent stop time set by the motor 22 is exceeded, the motor 22 is restarted under the control of the single-chip microcomputer to carry out a new round of hole-forming and sowing process.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An insertable planting hole seeder with adjustable plant spacing, comprising a mounting frame (1), characterized in that: The mounting frame (1) comprises two left and right mounting base frames, the two mounting base frames are respectively provided with first slide grooves (2) extending in the front-rear direction, the left and right ends of the movable adjustment frame (3) are respectively slidably arranged in the first slide grooves (2) of the two mounting base frames and can slide forward and backward along the first slide grooves (2), the left and right ends of the movable adjustment frame (3) are respectively provided with hole forming components, each group of hole forming components comprises a seed taker (4), a telescopic sleeve (5) and a hole forming device (6) arranged in sequence from top to bottom, the seed taker (4) comprises a seed box (7) and a seed guide tube (8) fixedly connected up and down, the seed guide tube (8) is fixed on the movable adjustment frame (3), the telescopic sleeve (5) is slidably sleeved on the seed guide tube (8) and can slide up and down relative to the seed guide tube (8), and the hole forming device (6) is installed at the bottom of the telescopic sleeve (5) and is located below the mounting frame (1); The mounting frame (1) is provided with a driving mechanism and an adjusting mechanism, and the driving mechanism drives the movable adjusting frame (3) to slide forward and backward, thereby driving the left two groups of hole-forming components on the movable adjusting frame (3) to move forward and backward together; the adjusting mechanism cooperates with the driving mechanism to drive the telescopic sleeves (5) in the two groups of hole-forming components to slide up and down along their respective seed guide tubes (8), thereby performing hole-forming and sowing operations.

2. The insertable planting hole seeder with adjustable plant spacing as claimed in claim 1, characterized in that: The driving mechanism comprises a driver and a transmission gear train, the transmission gear train comprises a driving wheel train, the driving wheel train comprises a driving shaft (9) extending left and right and driving gears (10) fixedly mounted on the left and right ends of the driving shaft (9), the tops of the left and right ends of the movable adjustment frame (3) are respectively provided with push-pull racks (11) extending in the front-back direction, the two driving gears (10) are respectively meshed with the two push-pull racks (11), the driving shaft (9) of the driving wheel train is driven to rotate by the driver, thereby driving the driving gears (10) at the two ends of the driving shaft (9) to rotate synchronously, thereby driving the two push-pull racks (11) to move forward and backward, thereby realizing the forward and backward movement of the movable adjustment frame (3).

3. The insertable planting hole seeder with adjustable plant spacing as claimed in claim 2, characterized in that: The transmission gear train also includes a main transmission gear train and a reversing gear train. The main transmission gear train includes a main shaft (12) and a transmission gear set fixed on the main shaft (12). The transmission gear set includes a main gear (13) and a left transmission gear (14) and a right transmission gear (15) located on the left and right sides of the main gear (13). The left and right transmission gears are incomplete gears with partial gear teeth, and the toothed parts of the left and right transmission gears are staggered in the circumferential direction. The reversing gear train includes a reversing shaft (16) and a reversing gear set fixed on the reversing shaft (16). The reversing gear set includes a driven gear (18) and a reversing gear (19). An adjusting gear set is also fixed on the driving shaft (9). The adjusting gear set includes a left and a right adjusting gear. The main shaft (12) and the drive shaft (9) are both shafts extending left and right, the main shaft (12) and the drive shaft (9) are arranged at intervals in the front-to-back direction, and the reversing shaft (16) is located below the main shaft (12) and the drive shaft (9); The left adjusting gear (20) meshes with the toothed portion of the left transmission gear (14), the right adjusting gear (21) meshes with the driven gear (18), and the reversing gear (19) meshes with the toothed portion of the right transmission gear (15). The main gear (13) is driven to rotate through the driver, and under the action of the transmission gear system, the intermittent forward and reverse rotation of the two driving gears (10) is finally achieved.

4. The insertable planting hole seeder with adjustable plant spacing as claimed in claim 3, characterized in that: The adjusting mechanism comprises an adjusting shaft (25), two hole-forming gears (26) and two adjusting wheels (27) respectively fixedly mounted on the adjusting shaft (25); the movable adjusting frame (3) comprises two movable frames (28) arranged opposite to each other on the left and right sides; the two movable frames (28) are respectively slidably mounted in first slide grooves (2) of two mounting base frames; the adjusting shaft (25) extends left and right and the left and right ends are respectively rotatably mounted on the two movable frames (28); the two hole-forming gears (26) are located between the two movable frames (28); and the two adjusting wheels (27) are respectively located outside the two movable frames (28); The outer sides of the two adjusting wheels (27) are respectively provided with eccentric adjusting rods (29); the telescopic sleeves (5) of the two hole assemblies are respectively located on the outer sides of the two adjusting wheels (27); the inner sides of the two telescopic sleeves (5) are respectively provided with adjusting grooves (30) extending in the front-back direction; the adjusting rods (29) of the two adjusting wheels (27) are respectively slidably matched with the adjusting grooves (30) of the two telescopic sleeves (5); the adjusting rods (29) can only slide forward and backward in the corresponding adjusting grooves (30); when the adjusting wheels (27) rotate, the telescopic sleeves (5) are driven by the adjusting rods (29) to slide up and down along their respective seed guide tubes (8); A group of movable adjustment devices is respectively provided at the bottom of the two mounting bases. The left and right groups of movable adjustment devices are respectively located above the two hole-forming gears (26). Each group of movable adjustment devices comprises a swing rack (31) extending in the front-back direction. The tops of the front and rear ends of the swing rack (31) are respectively suspended and installed on the mounting base through swing connecting rods (32). The upper and lower ends of each swing connecting rod (32) are respectively hinged to the mounting base and the swing rack (31). A limiting structure for limiting the extreme position of the swing rack (31) swinging backward is provided on the mounting base. The swing racks (31) of the two groups of movable adjustment devices are respectively meshed with the two hole-forming gears (26). When the movable adjustment frame (3) moves backward, the swing rack (31) swings backward. Under the action of the limit structure, the swing rack (31) is restricted from continuing to swing backward. The swing racks (31) of the two sets of movable adjustment devices drive the two hole-forming gears (26) to rotate, thereby driving the adjustment shaft (25) and the adjustment wheels (27) at both ends of the adjustment shaft (25) to rotate synchronously, and the eccentric adjustment rods (29) on the two adjustment wheels (27) respectively drive the two telescopic sleeves (5) to slide vertically.

5. The insertable planting hole seeder with adjustable plant spacing as claimed in claim 4, characterized in that: The seed box (7) has a drop hole (34) at the bottom, and a seed taking assembly is provided below the drop hole (34) of the seed box (7). The seed taking assembly includes a seed taking wheel (35) located in the seed guide tube (8). The seed taking wheel (35) is rotatably mounted on the seed guide tube (8) through seed taking wheel shafts (36) at both ends and a first torsion spring. Under the action of the first torsion spring, the seed taking hole (37) on the seed taking wheel (35) faces upward toward the inner cavity of the seed box (7). One of the seed taking wheel shafts (36) extends out of the seed guide tube (8) and is fixedly sleeved with a seed taking gear ( 38), the two adjusting wheels (27) are both incomplete gears with partial gear teeth, and the two seed taking gears (38) are respectively meshed with the toothed parts of the two adjusting wheels (27). When the toothed parts of the adjusting wheels (27) are meshed with the seed taking gears (38), the rotating adjusting wheels (27) drive the seed taking gears (38) to rotate, thereby driving the seed taking wheel shaft (36) and the seed taking wheel (35) to rotate synchronously, so that the seed taking hole (37) on the seed taking wheel (35) is directed toward or away from the inner cavity of the seed box (7), thereby realizing the seed taking action.

6. The insertable planting hole seeder with adjustable plant spacing as claimed in claim 5, characterized in that: The hole former (6) is formed by two semi-conical shell-shaped fixed claws (39) and a movable claw (40) that are matched to form a complete conical shell, and the pointed end of the hole former (6) faces downward. The left and right sides of the mounting circular tube (41) at the lower end of the telescopic sleeve (5) are respectively provided with hinge rods (42). The left and right sides of the upper end of the fixed claw (39) are respectively fixed on the two hinge rods (42) of the mounting circular tube (41). The left and right sides of the upper end of the movable claw (40) are respectively hinged to the two hinge rods (42) of the mounting circular tube (41) through hinge sleeves (43). 2), one of the hinge sleeves (43) is fixed with an extrusion rod (44) extending obliquely upward, the extrusion rod (44) is provided with a bent end (45), a second torsion spring is provided between the hinge rod (42) and the hinge sleeve (43), in a natural state, under the action of the second torsion spring, the movable claw (40) and the fixed claw (39) are fitted together so that the hole former (6) is in a closed state, and when the bent end (45) of the extrusion rod (44) is squeezed by an external force, the movable claw (40) is driven to rotate in a direction away from the fixed claw (39), so that the hole former (6) is opened.

7. The insertable planting hole seeder with adjustable plant spacing as claimed in claim 6, characterized in that: A squeezing wheel shaft extending in the left-right direction is provided on one side of the lower section of the seed guide tube (8); a vertically extending avoidance long groove is provided on one side of the telescopic sleeve (5); the squeezing wheel shaft extends from the avoidance long groove of the telescopic sleeve (5) and is provided with a squeezing wheel (46); as the hole former (6) moves up and down, the squeezing wheel (46) circumferentially faces the bent end (45) of the squeezing rod (44) of the corresponding hole former (6) to squeeze.

8. The insertable planting hole seeder with adjustable plant spacing as claimed in claim 4, characterized in that: The limiting structure of each group of movable adjustment devices comprises a limiting rod (33), which is located behind the rear swing link (32). The limiting rod (33) blocks the rear swing link (32) to limit the rearward swinging limit position of the swing rack (31).

9. The insertable planting hole seeder with adjustable plant spacing as claimed in claim 3, characterized in that: The driver comprises a motor (22), and a main driving gear (23) is fixedly mounted on the output shaft of the motor (22), and the main driving gear (23) is meshed with the main gear (13).

10. The insertable planting hole seeder with adjustable plant spacing as claimed in claim 9, characterized in that: The mounting frame (1) is a rectangular frame structure, and the left and right frames of the rectangular frame structure serve as left and right mounting base frames. The left and right sides of the mounting frame (1) are respectively provided with mounting brackets (17), and the left and right ends of the main shaft (12), the driving shaft (9) and the reversing shaft (16) are respectively rotatably mounted on the two mounting brackets (17); the front side of the mounting frame (1) is provided with a support seat (24), and the gear shaft of the main driving gear (23) is rotatably mounted on the support seat (24).

Images