Ditching seeder

Abstract

The utility model provides a furrowing and seeding machine. The furrowing and seeding machine comprises a rack, a furrow plough, a disc furrow opener, a seeding device, a soil covering structure and a depth limiting wheel, the furrow plough, the disc furrow opener, the soil covering structure and the depth limiting wheel are sequentially arranged on the rack along a preset direction; a seed guide pipe for conveying seeds is arranged at the bottom of the seeding device; an outlet of the seed guide pipe is positioned between the disc furrow opener and the soil covering structure; an adjusting mechanism used for adjusting the distance between the depth limiting wheel and the rack is arranged on the rack. According to the furrowing and seeding machine disclosed by the utility model, the furrow plough, the disc furrow opener, the soil covering structure and the depth limiting wheel are sequentially arranged, so that stubble breaking and furrowing can be realized by utilizing the furrow plough, the furrowing and seeding depth is limited through the depth limiting wheel, and the consistency of the seeding depth is ensured. The lower edge of the disc furrow opener can go deep into a groove, soil is prevented from collapsing due to disturbance, meanwhile, the positions of seeds are prevented from being affected, the row spacing uniformity can be improved, and therefore the sowing effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field, especially relates to a ditching seeding machine. BACKGROUND

[0002] At present, in Huanghuaihai area, corn is directly sowed in the wheat stubble land. In general, ditching seeding machine is used to sow in the wheat stubble land, and the existing ditching seeding machine adopts arrow shovel type ditching device, and a seed protection plate is arranged behind the ditching device.

[0003] But affected by the ditching plough into the earth angle, the ditching depth changes with the hardness of the land and the amount of wheat stubble, which causes the inconsistency of the sowing depth, and easily leads to uneven emergence in the later period. And the seed protection plate is easy to move the soil, thereby driving the seeds falling into the land to roll, causing the change of the seed position, uneven plant spacing, making the sowing effect poor, and easily affecting the yield. UTILITY MODEL CONTENT

[0004] Therefore, the utility model aims at providing a ditching seeding machine to ensure the consistency of the sowing depth and improve the sowing effect.

[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0006] A ditching seeding machine, comprising a rack, a ditching plough, a disc ditching device, a seeding device, a covering structure and a depth limiting wheel;

[0007] The ditching plough, the disc ditching device, the covering structure and the depth limiting wheel are sequentially arranged on the rack along a preset direction;

[0008] The seeding device is provided with a seed guide pipe at the bottom for conveying seeds, and the outlet of the seed guide pipe is located between the disc ditching device and the covering structure;

[0009] The rack is provided with an adjusting mechanism for adjusting the distance between the depth limiting wheel and the rack.

[0010] Further, the ditching plough comprises a first connecting frame connected with the rack, and a plough head arranged on the first connecting frame, and the plough head has two symmetrical earth turning surfaces.

[0011] Further, the plough head is detachably connected to the bottom of the first connecting frame through bolts.

[0012] Further, the seeding device comprises an electric seed metering device, and a seed box arranged on the top of the seed metering device; the bottom end of the electric seed metering device is connected with the rack, and one side of the electric seed metering device is connected with the first connecting frame.

[0013] Further, the soil covering structure comprises a connecting arm and a soil covering piece arranged at one end of the connecting arm; the other end of the connecting arm is connected to the first connecting frame and extends obliquely towards the disc opener.

[0014] Further, the connecting arm is arranged at two sides of the first connecting frame, and the two soil covering pieces arranged on the two connecting arms are arranged in a staggered manner in a preset direction.

[0015] Further, the disc opener comprises a second connecting frame connected to the frame, and two furrowing discs arranged at two sides of the connecting frame; the two furrowing discs are coaxially and symmetrically arranged, and the seed tube is arranged between the two furrowing discs.

[0016] Further, the adjusting mechanism comprises a third connecting frame hingedly connected to the frame at one end, a transmission connecting rod hingedly connected to the frame, and a lead screw rotatably arranged on the frame; the other end of the third connecting frame is provided with a depth limiting wheel, and a limiting column is formed on the third connecting frame; the upper end of the transmission connecting rod is rotatably provided with a lead screw nut, and the lead screw nut is screwed on the lead screw; the lower end of the transmission connecting rod is formed with a guide groove, and the limiting column can slide in the guide groove; when the lead screw is driven to rotate, the lead screw nut can drive the transmission connecting rod to rotate, so that the third connecting frame rotates under the guidance of the guide groove.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] The seed sowing machine disclosed by the utility model is provided with the furrowing plough, the disc opener, the soil covering structure and the depth limiting wheel, can utilize the furrowing plough to break stubble and furrow, limit the depth of sowing by the depth limiting wheel, guarantee the consistency of sowing depth, and the lower edge of the disc opener can enter the furrow and block the soil on the side of the furrow, prevent the soil from collapsing due to disturbance, maintain the depth of the furrow, avoid the influence of the soil on the seed position, improve the uniformity of plant spacing, and improve the sowing effect.

[0019] In addition, the plough head of the furrowing plough has two symmetrically arranged soil turning surfaces, the stress is uniform during the soil breaking and furrowing operation, the stability is high, and the symmetric and uniform furrow can be formed, so that the subsequent sowing operation is facilitated. The plough head is detachably connected to the bottom of the first connecting frame, so that the plough head can be replaced. At the same time, the sowing device comprises an electric seed metering device and a seed box arranged at the top of the seed metering device, so that a large amount of seeds can be stored, the accuracy of plant spacing can be guaranteed, and the uniformity of plant spacing can be improved.

[0020] In addition, the covering structure comprises a connecting arm and a covering piece arranged at one end of the connecting arm, which is simple and reliable in structure and can ensure the covering effect. The connecting arm is configured as two, and the two covering pieces on the two connecting arms are arranged in a staggered manner, which can cover a wider range of soil and avoid the phenomenon of soil leakage or uneven covering during covering. The disc furrow opener comprises a second connecting frame connected to the machine frame and two furrow discs rotatably arranged on both sides of the connecting frame, which has smaller disturbance to the soil and can maintain the soil structure, which is beneficial to ensure smooth ditch wall and flat ditch bottom, thereby facilitating uniform distribution of seeds and subsequent covering operation.

[0021] Furthermore, the adjusting mechanism comprises a third connecting frame hingedly connected to the machine frame, a transmission connecting rod hingedly connected to the machine frame, and a lead screw rotatably arranged on the machine frame, which indirectly drives the third connecting frame through the transmission connecting rod, avoids the possible rigid impact or vibration when the lead screw is directly driven, and improves the stability and precision of adjustment. And to a certain extent, the overall structural strength of the adjusting mechanism is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings, which form a part of this description, are included to provide a further understanding of the application. The embodiments of the application and its

[0023] Figure 1 The overall structure schematic diagram of the seed drill is described in the embodiment of the application;

[0024] Figure 2 The internal structure schematic diagram of the seed drill is described in the embodiment of the application;

[0025] Figure 3 The structure schematic diagram of the position A shown in FIG. Figure 2 The structure schematic diagram of the position A shown in FIG.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] 1, machine frame; 101, transmission connecting rod; 1011, lead screw nut; 1012, guide groove; 102, lead screw;

[0028] 2, furrow plow; 201, first connecting frame; 202, plow head;

[0029] 3, disc furrow opener; 301, second connecting frame; 302, furrow disc;

[0030] 4, depth limiting wheel; 401, third connecting frame; 402, limiting column;

[0031] 5, seed guide tube;

[0032] 6, electric seed metering device; 601, seed box;

[0033] 7. The connecting arm;

[0034] 8. The covering sheet. DETAILED DESCRIPTION

[0035] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0036] In the following description, specific details are set forth in order to provide a thorough understanding of embodiments of the application. However, persons having ordinary skill in the art will appreciate that embodiments of the application can be practiced without the specific details, and that the present application is not limited to the details by the embodiments. In other instances, well-known systems, devices, circuits, and methods have not been described in detail so as not to unnecessarily obscure aspects of the application.

[0037] In the description of the present application, it should be noted that if the terms indicating the orientation or position relationship such as "upper", "lower", "inner", "outer" and the like appear, they are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the device or element indicated to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, if the terms "first", "second" and the like appear, they are also only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0038] In addition, in the description of the present application, unless otherwise explicitly limited, the terms "mounting", "connection", "connection", "connection" should be understood broadly. For example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood in combination with the specific circumstances.

[0039] The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] The present embodiment relates to a furrow opener, which is pulled and moved by an agricultural machine to realize furrow opening and seeding in a field. As shown in Figure 1 the overall structure, the present embodiment includes a frame 1, a furrow plow 2, a disc furrow opener 3, a seeding device, a covering structure, and a depth limiting wheel 4.

[0041] The furrow opener 2, the disc furrow opener 3, the covering structure and the depth limiting wheel 4 are sequentially arranged on the frame 1 in a preset direction, that is, one end of the furrow opener 2 is arranged to be towed by the agricultural machine. The seed guiding pipe 5 for conveying seeds is arranged at the bottom of the seeding device, the outlet of the seed guiding pipe 5 is located between the disc furrow opener 3 and the covering structure, and the adjusting mechanism for adjusting the distance between the depth limiting wheel 4 and the frame 1 is arranged on the frame 1.

[0042] As arranged above, by sequentially arranging the furrow opener 2, the disc furrow opener 3, the covering structure and the depth limiting wheel 4, the furrow opener 2 can be used to break the stubble and open the furrow, and the depth limiting wheel 4 can be used to limit the depth of the seeding in the furrow, so as to ensure the consistency of the seeding depth. The lower edge of the disc furrow opener 3 can enter the furrow and block the soil on the side of the furrow, so as to prevent the soil from collapsing due to disturbance and maintain the depth of the furrow, and avoid the disturbance of the soil to affect the position of the seeds, which is beneficial to improve the uniformity of the plant spacing and improve the seeding effect.

[0043] Based on the above overall introduction, specifically, the furrow opener 2 of the embodiment includes a first connecting frame 201 connected to the frame 1, and a plow head 202 arranged on the first connecting frame 201, the plow head 202 has two symmetrical soil turning surfaces. By arranging two symmetrical soil turning surfaces on the plow head 202, the stress is uniform during the breaking and furrowing operation, the stability is high, and a symmetrical and uniform furrow can be formed, so as to facilitate the subsequent seeding operation.

[0044] Further, since the plow head 202 will be worn after a long time of use, thereby reducing the breaking and furrowing effect, therefore, the plow head 202 of the embodiment is detachably connected to the bottom of the first connecting frame 201 by bolts, so as to realize the detachable connection of the plow head 202 by the bolts, thereby facilitating the disassembly and installation of the plow head 202, and facilitating the replacement of the plow head 202, thereby ensuring the use effect of the furrow seeder of the embodiment.

[0045] The seeding device of the embodiment includes an electric seed metering device 6 and a seed box 601 arranged on the top of the seed metering device. The bottom end of the electric seed metering device 6 is connected to the frame 1, and one side of the electric seed metering device 6 is connected to the first connecting frame 201. In a specific implementation, as an implementation form, the electric seed metering device 6 is internally provided with a seed metering wheel driven to rotate by a motor. When the seed metering wheel rotates, it can convey the seeds into the seed guiding pipe 5 one by one, thereby realizing seeding. And by adjusting the rotating speed of the seed metering wheel, the plant spacing can be adjusted. Of course, the electric seed metering device 6 of the embodiment can adopt other forms, as long as it can meet the needs of seeding.

[0046] Thus, through the arrangement of the electric seed metering device 6 and the seed tank 601, the seed tank 601 can store a large amount of seeds and make the seeds enter the seed guide tube 5 through the electric seed metering device 6. Meanwhile, the arrangement of the electric seed metering device 6 can ensure the accuracy of the plant spacing and improve the uniformity of the plant spacing, and can also adjust the seeding speed or realize variable seeding. In addition, the electric seed metering device 6 is connected to the first connecting frame 201, so that the machine frame 1, the first connecting frame 201 and the machine body of the electric seed metering device 6 form a frame structure, which can improve the overall structural strength of the furrow seeder of the embodiment.

[0047] In addition, the covering structure of the embodiment includes the connecting arm 7 and the covering blade 8 arranged at one end of the connecting arm 7. The other end of the connecting arm 7 is connected to the first connecting frame 201 and extends obliquely towards the disc furrow opener 3. The structure is simple and reliable, and the oblique arrangement of the connecting arm 7 makes the covering structure less likely to be damaged when the furrow seeder of the embodiment is towed. Specifically, one end of the connecting arm 7 can be fastened to the first connecting frame 201 by bolts, and when the furrow depth is changed by adjusting the depth limiting wheel 4, the angle between the connecting arm 7 and the first connecting frame 201 can be adjusted to ensure the covering effect of the covering blade 8.

[0048] Further, the connecting arm 7 of the embodiment is arranged at both sides of the first connecting frame 201, and the two covering blades 8 on the two connecting arms 7 are arranged in a staggered manner in a predetermined direction. The staggered arrangement of the covering blades 8 can cover a wider range of soil and avoid the phenomenon of soil leakage or uneven covering during the covering process. Meanwhile, the arrangement of two connecting arms 7 and covering blades 8 is more suitable for the above-mentioned symmetrical structure, thereby improving the covering quality.

[0049] As a specific implementation form, as shown in Figure 2 The disc furrow opener 3 of the embodiment includes the second connecting frame 301 connected to the machine frame 1 and the two furrow discs 302 rotatably arranged at both sides of the connecting frame. The two furrow discs 302 are coaxially and symmetrically arranged, and the seed guide tube 5 is arranged between the two furrow discs 302. Through the symmetrical arrangement of the two furrow discs 302, the symmetrical furrows formed by the furrow opener are adapted, and the disturbance to the soil is small when the furrow discs 302 rotate, which can maintain the soil structure, facilitate the formation of neat and uniform furrows, and is beneficial to ensure the smoothness of the furrow wall and the flatness of the furrow bottom, thereby facilitating the uniform distribution of seeds and subsequent covering operations. Meanwhile, the seed guide tube 5 is arranged between the two furrow discs 302, so that the two furrow discs 302 serve as seed protection plates, further ensuring the accuracy of the seeding position.

[0050] Finally, in the embodiment, as shown in Figure 3As shown, the adjusting mechanism comprises a third connecting frame 401 hinged to one end of the frame 1, a transmission connecting rod 101 hinged to the frame 1, and a screw rod 102 rotatably arranged on the frame 1. The other end of the third connecting frame 401 is provided with a depth limiting wheel 4, and a limiting column 402 is formed on the third connecting frame 401. The upper end of the transmission connecting rod 101 is rotatably provided with a screw rod nut 1011, and the screw rod nut 1011 is screwed on the screw rod 102. The lower end of the transmission connecting rod 101 is formed with a guide groove 1012, and the limiting column 402 can slide in the guide groove 1012.

[0051] When the screw rod 102 is driven to rotate, the screw rod nut 1011 can drive the transmission connecting rod 101 to rotate. At this time, the limiting column 402 on the third connecting frame 401 is driven by the guide groove 1012 and slides along the guide groove 1012. The third connecting frame 401 rotates around the hinged end of the third connecting frame 401 and the frame 1 under the guidance of the guide groove 1012, so as to change the distance between the depth limiting wheel 4 and the frame 1, and adjust the furrow sowing depth.

[0052] It can be understood that the screw rod 102 indirectly drives the third connecting frame 401 through the transmission connecting rod 101, avoiding the rigid impact or vibration that may occur when the screw rod 102 is directly driven, and improving the stability and precision of the adjustment. The cooperation of the guide groove 1012 and the limiting column 402 further ensures the stability of the adjustment process. At the same time, the screw rod 102 is directly fixed on the frame 1, and the frame 1, the third connecting frame 401 and the transmission connecting rod 101 can form a triangular support structure, improving the overall structural strength of the adjusting mechanism, and ensuring that the distance between the depth limiting wheel 4 and the frame 1 does not change easily after long-term use, thereby affecting the furrow sowing depth.

[0053] In specific implementation, since the adjustment frequency of the furrow sowing depth is low, one end of the screw rod 102 of the embodiment is formed with a hexagonal head, and an operator can rotate the screw rod 102 by clamping the hexagonal head with a wrench or the like to complete the adjustment of the furrow sowing depth. Of course, an additional motor can also be provided on the frame 1, which is coaxially connected with the screw rod 102 to realize the rotation of the screw rod 102.

[0054] The furrow sowing machine described in the embodiment can break stubble and dig furrows by the furrow plough 2, limit the depth of furrow sowing by the depth limiting wheel 4, and ensure the consistency of the sowing depth. The lower edge of the disc furrow opener 3 can penetrate into the furrow to block the soil on the side of the furrow, prevent the soil from collapsing due to disturbance, and maintain the depth of the furrow. At the same time, the soil does not affect the position of the seeds, which is conducive to improving the uniformity of plant spacing, thereby improving the sowing effect, and has good practicability.

[0055] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1.A furrow sowing machine, characterized in that: comprising a frame (1), a furrow plough (2), a disc furrow opener (3), a sowing device, a covering structure and a depth limiting wheel (4) ; the furrow plough (2), the disc furrow opener (3), the covering structure and the depth limiting wheel (4) are sequentially arranged on the frame (1) in a preset direction; the sowing device is provided with a seed guide tube (5) at the bottom for conveying seeds, and the outlet of the seed guide tube (5) is located between the disc furrow opener (3) and the covering structure; and the frame (1) is provided with an adjusting mechanism for adjusting the distance between the depth limiting wheel (4) and the frame (1). 2.The furrow sowing machine according to claim 1, characterized in that: the furrow plough (2) comprises a first connecting frame (201) connected to the frame (1), and a plough head (202) arranged on the first connecting frame (201), wherein the plough head (202) has two symmetrical soil turning surfaces. 3.The furrow sowing machine according to claim 2, characterized in that: the plough head (202) is detachably connected to the bottom of the first connecting frame (201) by bolts. 4.The furrow sowing machine according to claim 2, characterized in that: the sowing device comprises an electric seed metering device (6), and a seed box (601) arranged on the top of the seed metering device; the bottom end of the electric seed metering device (6) is connected to the frame (1), and one side of the electric seed metering device (6) is connected to the first connecting frame (201). 5.The furrow sowing machine according to claim 2, characterized in that: the covering structure comprises a connecting arm (7), and a covering blade (8) arranged at one end of the connecting arm (7) ; the other end of the connecting arm (7) is connected to the first connecting frame (201) and extends obliquely towards the disc furrow opener (3). 6.The furrow sowing machine according to claim 5, characterized in that: the connecting arm (7) is configured to be arranged on both sides of the first connecting frame (201), and the two covering blades (8) on the two connecting arms (7) are arranged in a staggered manner in a preset direction. 7.The furrow sowing machine according to claim 1, characterized in that: the disc furrow opener (3) comprises a second connecting frame (301) connected to the frame (1), and two furrow discs (302) rotatably arranged on both sides of the connecting frame; the two furrow discs (302) are coaxially and symmetrically arranged, and the seed guide tube (5) is arranged between the two furrow discs (302). 8.The furrow sowing machine according to any one of claims 1 to 7, characterized in that: the adjusting mechanism comprises a third connecting frame (401) hinged to one end of the frame (1), a transmission connecting rod (101) hinged to the frame (1), and a lead screw (102) rotatably arranged on the frame (1) ; the other end of the third connecting frame (401) is provided with a depth limiting wheel (4), and a limiting column (402) is formed on the third connecting frame (401). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The upper end of the transmission connecting rod (101) is rotatably provided with a screw rod nut (1011), and the screw rod nut (1011) is screwed on the screw rod (102); the lower end of the transmission connecting rod (101) is formed with a guide groove (1012), and the limiting column (402) can slide in the guide groove (1012); When the screw rod (102) is driven to rotate, the screw rod nut (1011) can drive the transmission connecting rod (101) to rotate, so that the third connecting frame (401) rotates under the guidance of the guide groove (1012).

Images