Line-spacing-adjustable seed-metering device for seeding machine

Abstract

The utility model relates to the field of seed-metering devices, and discloses a row spacing-adjustable seed-metering device for a seeder, which comprises a square frame, a driving mechanism is arranged on the right side of the square frame, a connecting plate is fixedly connected to the bottom of the square frame, a traction frame is fixedly connected to the bottom of the connecting plate, a seed-metering mechanism is arranged in the traction frame, and a seed-metering mechanism is arranged in the seed-metering mechanism. The seed discharging mechanism comprises a seeding box, a servo motor is fixedly connected to the outer surface of the right side of the seeding box, a rotating disc is fixedly connected to the left side of an output shaft of the servo motor, a square groove is formed in the circumferential surface of the rotating disc, and a groove is formed in the top of the seeding box. According to the seed sowing device, the reciprocating lead screw is driven by the stepping motor to rotate so as to enable the discharging box to move, and seeds in the discharging box enter the sowing box when the discharging box passes through the feeding port through the cooperation of the cylinder and the arc-shaped guide groove, so that workers do not need to manually and frequently add the seeds, the frequency of manually adding the seeds is reduced, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the seed metering device field especially a kind of adjustable row spacing seed metering device for seeding machine. BACKGROUND

[0002] Seeding is an important link of agricultural production, at present stage, there are many seeding machines in China, the common method for ensuring plant spacing of existing agricultural machinery is to connect ground wheel shaft and seed metering device shaft with chain wheel, ground wheel and seed metering device shaft rotate according to certain transmission ratio, and plant spacing can be changed by changing transmission ratio of wheel and seed metering device wheel; since chain wheel of seed metering device and ground wheel shaft chain wheel need to be ensured in the same plane, generally installed seeding machine cannot adjust row spacing, and planting depth can be adjusted by adjusting opening depth of furrow opener.

[0003] Through search, Chinese patent publication No. CN109644630B discloses a kind of adjustable plant spacing seeding machine, the seeding machine of adjustable plant spacing includes ground wheel, positioning disc, sensor, sensor frame, machine frame, seeding assembly, single-chip microcomputer, ground wheel shaft, at least two seeding assemblies are installed on the machine frame.

[0004] The above patent can adapt to different ridge width operation requirements by adjusting the number of positioning nails on positioning disc and the number of positioning nails of each circle to realize the adjustment of plant spacing, but it does not set seed automatic replenishing mechanism, and it needs to be frequently stopped to add seeds, which affects operation continuity, and the way consumes time and effort, increases labor burden of workers, therefore, a kind of adjustable row spacing seed metering device for seeding machine is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides an adjustable row spacing seed metering device for seeding machine, which aims to improve the problem of "frequent stop to add seeds, affecting operation continuity" in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: an adjustable row spacing seed metering device for seeding machine, including square box, the right side of the square box is provided with driving mechanism, the bottom of the square box is fixedly connected with connecting plate, the bottom of the connecting plate is fixedly connected with traction frame, the inside of the traction frame is provided with seed metering mechanism, the seed metering mechanism includes seeding box, the right side outer surface of the seeding box is fixedly connected with servo motor, the output shaft left side of the servo motor is fixedly connected with turntable, the circumferential surface of the turntable is provided with square groove, the top of the seeding box is provided with recess, the inside of the square box is provided with replenishing mechanism, the replenishing mechanism includes discharging box, the inner wall bottom of the discharging box is slidably connected with baffle, the baffle is elastically connected with the inner wall of the discharging box through spring, the bottom of the baffle is fixedly connected with cylinder, the top of the recess is provided with arc guide groove.

[0007] As a further description of the above technical solution:

[0008] The driving mechanism comprises a stepping motor, the stepping motor is fixedly connected to the right outer surface of the square box, a reciprocating screw rod is fixedly connected to the left side of the output shaft of the stepping motor, and the outer wall of the reciprocating screw rod is in sliding connection with the inner wall of the discharging box.

[0009] As a further description of the above technical solution:

[0010] The driving mechanism further comprises a guide rod, the guide rod is fixedly connected to the inner wall of the square box, and the outer wall of the guide rod is in sliding connection with the inner wall of the discharging box.

[0011] As a further description of the above technical solution:

[0012] The number of the square grooves is multiple, and the multiple square grooves are arranged at equal angles on the surface of the rotating disc in a ring shape.

[0013] As a further description of the above technical solution:

[0014] The top of the seeding box is provided with a feeding port, and the bottom of the seeding box is provided with a seed discharging channel.

[0015] As a further description of the above technical solution:

[0016] The inside of the discharging box is fixedly connected with an inclined block, and the cross section of the inclined block is triangular.

[0017] As a further description of the above technical solution:

[0018] The surface of the traction frame is in abutment with a fixing frame, and the fixing frame is fixedly connected to the front side of the seeding box through fastening bolts.

[0019] As a further description of the above technical solution:

[0020] The fixing frame is C-shaped.

[0021] The utility model has the advantages of the following:

[0022] 1、The utility model discloses a seed discharging device, which comprises a square box, a discharging box, a rotating disc, a seeding box, a driving mechanism and a traction frame.

[0023] 2、The utility model discloses, through setting up cylinder and arc guide groove, make the blanking box when not through the feed inlet of seeding box top, the baffle will close the opening at the bottom of seeding box under the action of spring, avoid the seed inside blanking box to scatter in seeding box outside, cause waste. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the whole three -dimensional structure front view schematic drawing in the utility model;

[0025] Figure 2 It is the whole three -dimensional structure plan schematic drawing in the utility model;

[0026] Figure 3 It is the three -dimensional explosion structure schematic drawing of supplementary mechanism and seed metering mechanism in the utility model;

[0027] Figure 4 It is the three -dimensional explosion structure section schematic drawing of seed metering mechanism in the utility model;

[0028] Figure 5 It is the three -dimensional structure bottom view schematic drawing of supplementary mechanism in the utility model;

[0029] Figure 6 It is the three -dimensional structure section schematic drawing of supplementary mechanism in the utility model.

[0030] LEGEND:

[0031] 1, square frame;2, stepper motor;3, reciprocating screw;4, blanking box;5, guide rod;6, connecting plate;7, traction frame;8, seeding box;9, servo motor;10, turntable;11, square groove;12, recess;13, baffle;14, spring;15, cylinder;16, arc guide groove;17, feed inlet;18, seed metering passage;19, inclined block;20, fixed frame;21, fastening bolt. DETAILED DESCRIPTION

[0032] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0033] REFERENCE Figure 1 , Figure 2The utility model provides an embodiment: a kind of adjustable row spacing seed metering device for seeding machine, including square 1, the right side of square 1 is provided with driving mechanism, the bottom of square 1 is fixedly connected with connecting plate 6, the bottom of connecting plate 6 is fixedly connected with traction frame 7, the surface of traction frame 7 is abutted with fixed frame 20, fixed frame 20 is fixedly connected with the front side of seeding box 8 by fastening bolt 21, fixed frame 20 is set to C, by loosening fastening bolt 21, seeding box 8 can be fixed with traction frame 7 and be released, so that the position of seeding box 8 can be displaced left and right and be fixed again, and the distance between multiple seeding box 8 can be adjusted, can adapt to the seed metering and seeding demand of different row spacing, the inside of traction frame 7 is provided with seed metering mechanism.

[0034] With reference to Figure 2 - Figure 4 , seed metering mechanism includes seeding box 8, the right side outer surface of seeding box 8 is fixedly connected with servo motor 9, servo motor 9 has higher control precision, can accurately control the rotation angle of its output shaft, the left side of the output shaft of servo motor 9 is fixedly connected with turntable 10, the circumferential surface of turntable 10 is provided with square groove 11, the number of square groove 11 is set to multiple, multiple square groove 11 is arranged on the surface of turntable 10 at ring shape equiangular interval, turntable 10 rotation drives square groove 11 to rotate, so that seed moves in seeding box 8, and then completes the transfer of seed from feed inlet 17 to seed metering channel 18, the top of seeding box 8 is provided with feed inlet 17, the bottom of seeding box 8 is provided with seed metering channel 18, the top of seeding box 8 is provided with recess 12 matched with the shape of the bottom of lower box 4, the inside of square 1 is provided with replenishment mechanism.

[0035] With reference to Figure 3 - Figure 6 , replenishment mechanism includes lower box 4, the inside of lower box 4 can automatically replenish seed in multiple seeding box 8, reduce the frequency of manually adding seed, improve work efficiency, the inner wall bottom of lower box 4 is slidably connected with baffle 13, baffle 13 is elastically connected with the inner wall of lower box 4 by spring 14, by setting spring 14 to baffle 13 with a rear side of the elastic force, the inside of lower box 4 is fixedly connected with inclined block 19, the cross section of inclined block 19 is set to triangle, so that the seed in the inside of lower box 4 is more easily into seeding box 8, the bottom of baffle 13 is fixedly connected with cylinder 15, the top of recess 12 is provided with arc guide groove 16 matched with cylinder 15.

[0036] With reference to Figure 1 - Figure 3The driving mechanism comprises a step motor 2 fixedly connected to the right outer surface of the square frame 1, a reciprocating screw rod 3 in a horizontal state fixedly connected to the left side of the output shaft of the step motor 2, the outer wall of the reciprocating screw rod 3 being slidably connected to the inner wall of the discharging box 4, the reciprocating screw rod 3 driving the discharging box 4 to make reciprocating linear motion in the axial direction of the reciprocating screw rod 3 when the reciprocating screw rod 3 rotates, and a guide rod 5 fixedly connected to the inner wall of the square frame 1, the outer wall of the guide rod 5 being slidably connected to the inner wall of the discharging box 4, the stability of the discharging box 4 during displacement being improved through the guiding effect of the guide rod 5 on the discharging box 4, so that the discharging box 4 makes more accurate linear motion, and the accuracy of the discharging box 4 during displacement is improved.

[0037] Working principle: in use, firstly, the whole device is connected to the traction part of the seeding machine through the traction frame 7, the fixed frame 20 is stably connected to the front side of the seeding box 8 through the fastening bolt 21, so that the stability of the whole seed dispenser during operation is ensured, the seeds enter the seeding box 8 through the feeding port 17 at the top of the seeding box 8, and then fall into the square groove 11, the servo motor 9 is started to make the rotating disc 10 rotate, the plurality of square grooves 11 arranged on the circumferential surface of the rotating disc 10 rotate with the rotating disc 10, when the square groove 11 rotates to be aligned with the seed discharge channel 18 at the bottom of the seeding box 8, the seeds in the square groove 11 reach the seed discharge position and are discharged into the soil under the action of gravity, the rotation speed of the servo motor 9 is adjusted, so that the seed discharge interval and quantity can be accurately controlled, and accurate seeding is realized.

[0038] When the seeding machine works, the step motor 2 works synchronously, the step motor 2 drives the reciprocating screw rod 3 to rotate, the rotation of the reciprocating screw rod 3 drives the discharging box 4 to make reciprocating linear motion along the guide rod 5 in the square frame 1, when the discharging box 4 passes through the groove 12, the cylinder 15 at the bottom of the baffle 13 is guided by the arc-shaped guide groove 16, so that the baffle 13 is displaced against the elastic force of the spring 14, so that an opening is formed at the bottom of the discharging box 4, and the seeds in the discharging box 4 enter the seeding box 8 through the feeding port 17, so that the seeds are continuously supplied.

[0039] Finally, it should be noted that: the above only for preferred embodiments of the present application and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An adjustable row unit for a planter comprising a housing (1) characterised in that: The right side of the frame (1) is provided with a driving mechanism, the bottom of the frame (1) is fixedly connected with a connecting plate (6), the bottom of the connecting plate (6) is fixedly connected with a traction frame (7), the inside of the traction frame (7) is provided with a seed dispensing mechanism, the seed dispensing mechanism comprises a seeding box (8), the right side outer surface of the seeding box (8) is fixedly connected with a servo motor (9), the output shaft left side of the servo motor (9) is fixedly connected with a turntable (10), the circumferential surface of the turntable (10) is provided with a square groove (11), the top of the seeding box (8) is provided with a groove (12), the inside of the frame (1) is provided with a replenishing mechanism, the replenishing mechanism comprises a discharging box (4), the inner wall bottom of the discharging box (4) is slidably connected with a baffle (13), the baffle (13) is elastically connected with the inner wall of the discharging box (4) through a spring (14), the bottom of the baffle (13) is fixedly connected with a cylinder (15), the top of the groove (12) is provided with an arc-shaped guide groove (16).

2. An adjustable row unit spacing mechanism for a planter as defined in claim 1, wherein: The driving mechanism comprises a stepping motor (2), the stepping motor (2) is fixedly connected to the right side outer surface of the frame (1), the output shaft left side of the stepping motor (2) is fixedly connected with a reciprocating lead screw (3), the outer wall of the reciprocating lead screw (3) is slidably connected with the inner wall of the discharging box (4).

3. An adjustable row unit spacing mechanism for a planter as claimed in claim 2, wherein: The driving mechanism further comprises a guide rod (5), the guide rod (5) is fixedly connected to the inner wall of the frame (1), and the outer wall of the guide rod (5) is slidably connected with the inner wall of the discharging box (4).

4. The adjustable row unit spacing planter for a planter according to Claim 1, wherein: The number of the square grooves (11) is multiple, and multiple square grooves (11) are arranged on the surface of the turntable (10) in a ring shape and at equal angles.

5. An adjustable row unit spacing mechanism for a planter according to claim 1, wherein: The top of the seeding box (8) is provided with a feeding port (17), and the bottom of the seeding box (8) is provided with a seed dispensing channel (18).

6. An adjustable row unit spacing mechanism for a planter according to claim 1, wherein: The inside of the discharging box (4) is fixedly connected with an inclined block (19), and the cross section of the inclined block (19) is triangular.

7. The adjustable row-unit spacing planter for a planter according to claim 1, wherein: The surface of the traction frame (7) is abutted with a fixing frame (20), and the front side of the seeding box (8) is fixedly connected with the fixing frame (20) through a fastening bolt (21).

8. An adjustable row unit spacing mechanism for a planter as claimed in claim 7, wherein: The fixing frame (20) is C-shaped.

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