A rotary arm type rapeseed automatic sowing mechanism

Abstract

The present invention relates to a rotary arm type automatic rapeseed sowing mechanism, comprising a bracket, wherein a seed storage tank is provided in the bracket, a discharge hopper is provided corresponding to one side of the seed storage tank, a rotary arm is rotatably provided on the upper side of the seed storage tank, a seed taking spoon is installed at the end of the rotary arm, an inner cavity is opened in the rotary arm, and the inner cavity is communicated with the spoon cavity of the seed taking spoon, and an arc-shaped curved discharge pipe is also installed on the rotary arm, one end of the arc-shaped curved discharge pipe is communicated with the inner cavity of the rotary arm, and the other end can send seeds into the discharge hopper as the rotary arm rotates after the seed taking spoon takes seeds from the seed storage tank. Through the structural design of the rotating arm, seed taking spoon, etc., the rotating arm is used to rotate at any time, and seeds are taken out one at a time from the movable seed storage tank. It can realize fully automatic seed taking and no longer needs manual seed placement. The overall structure is simple. After the seeds are taken, they are sent into the discharge hopper through the arc-shaped curved discharge pipe. The seeds will not be affected by falling impact, etc., and the seed taking spoon structure can ensure that only one seed is taken out each time, and there will be no over-seeding or missed seeding. The overall structure is simple and compact, which is conducive to the promotion of mountain farming.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural sowing, and in particular to a rotary arm type automatic rapeseed sowing mechanism. Background Art

[0002] The automatic rapeseed seeder is a commonly used equipment in modern agriculture. Traditional rapeseed sowing generally adopts a rotating wheel with sowing grooves for sowing, such as the Chinese utility model patent "Rapeseed Seeder", publication number "CN201294739", which includes a walking wheel, a connecting shaft, a driving wheel, a transmission belt, a driven wheel, a sowing shaft, a seed box, a fixed bracket and a push rod, etc., and semicircular recesses for seed sowing and packaging are evenly distributed in rows and columns according to the row spacing. A seed box with an open top is tightly installed above the sowing shaft, and the lower part of the seed box is a leakage trough structure; an elastic body is arranged between the sowing shaft and the seed box; the sowing spacing is difficult to adjust, the notch of the sowing shaft is easy to wear, and the seeds are easily pinched by the leakage groove at the lower part of the seed box, resulting in missed sowing and other problems; with the development of modern agriculture, a sowing mechanism has gradually emerged, which is a rotating mechanism on one side of a container storing crop seeds, so that the scooping piece on the rotating mechanism can rotate with the rotation of the rotating mechanism The crop seeds in the container are scooped up and thrown into the planting area continuously, such as the Chinese invention patent "Chain Spoon Type Ginger Combined Seeder and Sowing Method", publication number CN111386778A, in which the chain spoon type ginger combined seeder includes a frame connected to the walking device, and a furrowing and ridging device and a chain spoon type sowing device installed on the frame, and the furrowing and ridging device is located in front of the chain spoon type sowing device; the chain spoon type sowing device includes a sprocket group rotatably connected to the frame, a conveying chain and a power device for driving the conveying chain to rotate, and a plurality of ginger seed spoons distributed along the circumferential direction are installed on the conveying chain. It uses a continuously rotating chain spoon to achieve the technical effect of scooping up and continuously sowing, which is suitable for continuous operation in large areas of farmland, but the overall structure is complex and large, and cannot be adapted to sowing in mountain farmland, etc. The cost is high and it is not suitable for promotion in rural areas. In addition, the operator needs to place the ginger seeds in the seed box on the ginger seed spoon of the ginger seed conveying mechanism according to the direction, and the operation process is relatively cumbersome. Summary of the Invention

[0003] In view of the above problems, the present invention provides a high-efficiency rapeseed automatic sowing mechanism with a simple structure, small size, and a rotating arm and controllable sowing gap.

[0004] The specific technical solution of the present invention is: a rotating arm type rapeseed automatic sowing mechanism, including a bracket, a seed storage tank is provided in the bracket, a discharge hopper is provided on one side of the seed storage tank, a rotating arm is rotatably provided on the upper side of the seed storage tank, a seed taking spoon is installed on the end of the rotating arm, an inner cavity is opened in the rotating arm, and the inner cavity is connected with the spoon cavity of the seed taking spoon, and an arc-shaped curved discharge pipe is also installed on the rotating arm, one end of the arc-shaped curved discharge pipe is connected with the inner cavity of the rotating arm, and the other end can send the seeds into the discharge hopper as the rotating arm rotates after the seed taking spoon takes seeds from the seed storage tank.

[0005] Furthermore, preferably, a driving shaft is installed at the bottom of the bracket along the length direction, a driven shaft is installed at the top of the bracket, the rotating arm is installed on the driven shaft, and the driving shaft drives the driven shaft to rotate through a transmission mechanism.

[0006] Furthermore, preferably, a group of rotating arms, seed storage tanks and lower hoppers are correspondingly provided on both sides of the driven shaft.

[0007] Further, preferably, the seed storage tank includes a fixed seed storage outer tank installed in the bracket, a movable seed storage inner tank is placed in the fixed seed storage outer tank, and a recovery pipe is provided at the bottom of the fixed seed storage outer tank.

[0008] Furthermore, preferably, the fixed seed storage outer tank and the movable seed storage inner tank are both arc-shaped or semicircular open tank structures with a notch at the center.

[0009] Furthermore, preferably, a handle is provided at one end of the movable seed storage inner tank.

[0010] Furthermore, preferably, a protrusion is provided on the inner surface of the spoon cavity of the seed taking spoon toward the spoon mouth, and an inclined high surface is provided on the side of the protrusion close to the inner cavity to prevent seeds from falling into the inner cavity during the seed taking process of the seed taking spoon from the movable seed storage tank.

[0011] Furthermore, preferably, the transmission mechanism includes a driving sprocket mounted on the driving shaft and a corresponding driven sprocket mounted on the driven shaft, and a chain is installed between the driving sprocket and the driven sprocket.

[0012] Furthermore, preferably, the bracket includes a driving shaft mounting beam erected along the short side and located at the bottom of the bracket for carrying the driving shaft, a seed storage tank positioning rod erected along the long side and located on the driving shaft mounting beam, a lower hopper mounting beam is erected along the short side at the bottom of the bracket, and a top mounting beam is erected along the short side at the top of the bracket.

[0013] Furthermore, preferably, the discharge hopper comprises a funnel-shaped inoculation funnel, and the outlet at the lower end of the inoculation funnel is connected to a discharge pipe.

[0014] The beneficial effects of the present invention are: through the structural design of the rotating arm, seed taking spoon, etc., the rotating arm is rotated at any time to complete one seed at a time from the movable seed storage tank, which can realize fully automatic seed taking and no longer need to manually place seeds, and the overall structure is simple. After the seeds are taken, they are sent into the discharge hopper through the arc-shaped curved discharge pipe, and the seeds will not be affected by falling impact, etc., and the seed taking spoon structure can ensure that only one seed is taken each time, and there will be no over-seeding or missed seeding; the overall structure is simple and compact, which is conducive to the promotion of mountain farming. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of the rotary arm type rapeseed automatic sowing mechanism of the present invention, wherein the left side of the bottom of the bracket is partially cut away to show the installation structure of the lower hopper and seed storage tank;

[0016] Figure 2 It is a top view of the rotary arm type rapeseed automatic sowing mechanism of the present invention;

[0017] Figure 3 for Figure 1 AA section view in;

[0018] Figure 4 for Figure 1 BB cross-sectional view in;

[0019] Figure 5 for Figure 3 A local enlarged view of point I in FIG;

[0020] Figure 6 for Figure 4 The local enlarged view of point II in the figure;

[0021] Figure 7 for Figure 2 A local enlarged view of point III in FIG.

[0022] Figure 8 A cross-sectional view of the seed storage tank.

[0023] In the figure: 1- bracket, 101- driving shaft mounting beam, 102- lower hopper mounting beam, 103- seed storage tank positioning rod, 104- top mounting beam;

[0024] Seed storage tank, 201-fixed seed storage outer tank, 202-movable seed storage inner tank, 203-recovery tube, 204-handle piece, 205-notch;

[0025] Down hopper, 301-down pipe;

[0026] Rotating arm, 401-inner cavity;

[0027] Seed spoon, 501-spoon cavity, 502-protrusion, 503-inclined high surface;

[0028] Arc-shaped bent feeding tube, 701-driving shaft, 702-driven shaft;

[0029] 8-transmission mechanism, 801-driving sprocket, 802-driven sprocket, 803-chain;

[0030] 901-bearing seat I, 902-bearing seat II, 100-power source. DETAILED DESCRIPTION

[0031] In order to make the technical problems and technical solutions solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0034] like Figure 1-Figure 4 As shown, a rotary arm type rapeseed automatic sowing mechanism includes a bracket 1, which is welded from stainless steel square tubes and has a square frame structure. The bracket 1 is a square bracket. The bracket 1 also includes a driving shaft mounting beam 101 located at the bottom of the bracket 1 along the short side for carrying the driving shaft 701, a seed storage tank positioning rod 103 located on the driving shaft mounting beam 101 along the long side, a lower hopper mounting beam 102 is set at the bottom of the bracket 1 along the short side, and a top mounting beam 104 is set at the top of the bracket 1 along the short side.

[0035] A seed storage tank 2 is provided in the bracket 1, and the seed storage tank 2 is provided on two seed storage tank positioning rods 103. Figure 1 and Figure 3 shown.

[0036] A lower hopper 3 is correspondingly provided on one side of the seed storage tank 2 , and a rotating arm 4 is rotatably provided on the upper side of the seed storage tank 2 , and the lower hopper 3 is located on a side away from the rotating arm 4 .

[0037] The lower hopper 3 is vertically mounted on the lower hopper mounting beam 102. The lower hopper 3 includes a funnel-shaped inoculation funnel. The lower end outlet of the inoculation funnel is connected to a lower feeding pipe 301. Of course, in order to ensure the uniformity of the seed dropping, a baffle that can be opened and closed at intervals can be added to the material pipe mouth, or an automatic valve can be added. For example, the lower hopper is divided into two, a vertical step design is used, and a baffle is added to the lower end of the first lower hopper. The baffle is mounted on the rotating shaft, and the rotation of the rotating shaft drives the baffle to open or close. The two ends of the rotating shaft are rotatably mounted on the bracket 1, that is, it is rotatably mounted on the bracket 1 through the bearing seat. A torsion spring that can keep the baffle in a closed state is installed at both ends of the rotating shaft, that is, the torsion spring is sleeved on the rotating shaft 505, one end of which is fixed on the rotating shaft, and the other end is fixed on the bracket 1. The baffle is always in a closed state by the rebound force of the torsion spring, and the opening and closing of the baffle is achieved by intermittent pressing. Of course, a stepper motor or a servo motor can also be directly connected to the rotating shaft, the torsion spring design is cancelled, and the opening and closing of the baffle is achieved by PLC electronic control.

[0038] like Figure 1 and Figure 2 As shown, a driving shaft 701 is installed along the length direction at the bottom of the bracket 1. The driving shaft 701 is installed by welding two driving shaft mounting beams 101 along the short sides at the bottom of the bracket 1. A bearing seat Ⅰ901 is installed on the bottom surface of the driving shaft mounting beam 101. The driving shaft 701 is rotatably installed in the bearing seat Ⅰ901.

[0039] A driven shaft 702 is installed on the top of the bracket 1, that is, two top mounting beams 104 are set up along the short sides of the top of the bracket 1, and a bearing seat II 902 is installed on the top mounting beams 104, and the driven shaft 702 is installed in the bearing seat II 902.

[0040] The rotating arm 4 is mounted on the driven shaft 702 , and the driving shaft 701 drives the driven shaft 702 to rotate through the transmission mechanism 8 .

[0041] In this embodiment, the transmission mechanism 8 adopts a sprocket drive, that is, a driving sprocket 801 on the driving shaft 701 corresponds to a driven sprocket 802 installed on the driven shaft 702, and a chain 803 is installed between the driving sprocket 801 and the driven sprocket 802; of course, synchronous belt drive, belt drive, gear drive, etc. can also be used, which are all equivalent technologies.

[0042] A group of rotating arms 4, seed storage tanks 2 and lower hoppers 3 are correspondingly arranged on both sides of the driven shaft 702. In this embodiment, only the form of the active shaft 701 driving one driven shaft 702 to rotate is shown. According to needs, technical personnel in this field can set multiple driven shafts 702 and corresponding rotating arms 4, seed storage tanks 2 and lower hoppers 3 on the bracket 1, which are all within the technical scope of the present invention.

[0043] like Figure 3-Figure 5 As shown, a seed taking spoon 5 is installed at the end of the rotating arm 4, and an inner cavity 401 is opened in the rotating arm 4, and the inner cavity 401 is connected with the spoon cavity 501 of the seed taking spoon 5. An arc-shaped curved feeding tube 6 is also installed on the rotating arm 4, and one end of the arc-shaped curved feeding tube 6 is connected with the inner cavity 401 of the rotating arm 4, and the other end can deliver the seeds into the feeding hopper 3 as the rotating arm 4 rotates after the seed taking spoon 5 takes seeds from the seed storage tank 2.

[0044] A protrusion 502 is provided in the spoon cavity 501 of the seed taking spoon 5 facing the spoon mouth. The protrusion 502 can ensure that only one rapeseed seed enters the spoon cavity 501 during the process of the seed taking spoon 5 rotating to take seeds from the movable seed storage inner groove 202, and no two rapeseed seeds enter the spoon cavity 501. Therefore, it should be noted that the size of the spoon cavity 501 should be designed according to the average size of the rapeseed seeds or corresponding seeds. It should be larger than the average size. Through a certain protrusion 502, it is ensured that only one rapeseed seed enters the spoon cavity 501, and the spoon mouth will be blocked by the entered seed, and other seeds cannot enter the spoon The cam 502 is located in the cavity 501, and the protrusion 502 is close to the inner cavity 401. The side of the protrusion 502 that is close to the inner cavity 401 is provided with an inclined high surface 503 to prevent the seeds from falling into the inner cavity 401 during the seed taking process of the seed taking spoon 5 in the movable seed storage inner groove 202, that is, to ensure that when the seed taking spoon 5 is about to leave the movable seed storage inner groove 202, the seeds in the spoon cavity 501 will not roll into the inner cavity 401. Only when the rotating arm 4 rotates past the horizontal height and has an upward tilt, can the seeds roll over the inclined high surface 503 and enter the inner cavity 401, just like scooping seeds with a spoon, so as to ensure as much as possible that only one seed is taken out each time it is rotated.

[0045] like Figure 4 、 Figure 6-Figure 8 As shown, the seed storage tank 2 includes a fixed seed storage outer tank 201 installed in the bracket 1, and a movable seed storage inner tank 202 is placed in the fixed seed storage outer tank 201. The bottom of the movable seed storage inner tank 202 is a conical structure or a pot-edge structure, that is, the bottom of the movable seed storage inner tank 202 is V-shaped, which matches the size of the seed spoon. Each time it rotates along the groove, it bites the hook, thereby ensuring that the seeds are close to the middle and there will be no leakage. Figure 8 shown.

[0046] The fixed seed storage outer tank 201 and the movable seed storage inner tank 202 are both arc-shaped or semicircular open tank structures, with a notch 205 at the center. The notch 205 is provided to avoid the arc-shaped bending of the discharge pipe 6 during the rotation process. A handle piece 204 is provided at one end of the movable seed storage inner tank 202, and a recovery pipe 203 is provided at the bottom of the fixed seed storage outer tank 201.

[0047] like Figure 1 、 Figure 3 and Figure 4 As shown, the driving shaft 701 is driven to rotate by the power source 100, and the driving shaft 701 drives the driven shaft 702 to rotate through the sprocket transmission. The rotating arm 4 on the driven shaft 702 rotates to drive the seed taking spoon 5 to take a rapeseed seed from the movable seed storage inner groove 202 into the spoon cavity 501. As the rotating arm 4 rotates, when the seed taking spoon 5 leaves the movable seed storage inner groove 202 and has a certain inclination, the seed enters the arc-shaped curved discharge tube 6 through the inner cavity 401 of the rotating arm 4. At this time, the discharge end of the arc-shaped curved discharge tube 6 is aligned with the discharge hopper 3. The seeds can be quickly rotated along the arc-shaped curved discharge tube 6 at any time to enter the discharge hopper 3, thereby opening the furrow below. When sowing is not in progress, the movable seed storage inner groove 202 only needs to be rotated and rotated upward through the hand piece 204 of the movable seed storage inner groove 202 to make the seeds enter the fixed seed storage outer groove 201. The seeds can be recovered through the recovery pipe 203, and the movable seed storage inner groove 202 does not need to be taken out from the fixed seed storage outer groove 201.

[0048] The present invention is described in detail above through specific and preferred embodiments, but those skilled in the art should understand that the present invention is not limited to the embodiments described above. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rotary arm type rapeseed automatic sowing mechanism, characterized in that: The invention comprises a bracket (1), wherein a seed storage tank (2) is provided in the bracket (1), a discharge hopper (3) is provided on one side of the seed storage tank (2), a rotating arm (4) is rotatably provided on the upper side of the seed storage tank (2), a seed taking spoon (5) is installed at the end of the rotating arm (4), an inner cavity (401) is opened in the rotating arm (4), and the inner cavity (401) is communicated with the spoon cavity (501) of the seed taking spoon (5), and an arc-shaped curved discharge tube (6) is also installed on the rotating arm (4), one end of the arc-shaped curved discharge tube (6) is communicated with the inner cavity (401) of the rotating arm (4), and the other end can send the seeds into the discharge hopper (3) as the rotating arm (4) rotates after the seed taking spoon (5) takes seeds from the seed storage tank (2); The seed storage tank (2) comprises a fixed seed storage outer tank (201) installed in the bracket (1), a movable seed storage inner tank (202) is placed in the fixed seed storage outer tank (201), and a recovery pipe (203) is provided at the bottom of the fixed seed storage outer tank (201); a protrusion (502) is provided in the spoon cavity (501) of the seed taking spoon (5) facing the spoon mouth, and an inclined high surface (503) is provided on the side of the protrusion (502) close to the inner cavity (401) to prevent the seed taking spoon (5) from falling into the inner cavity (401) during the seed taking process in the movable seed storage inner tank (202).

2. The rotary arm type rapeseed automatic sowing mechanism according to claim 1, characterized in that: A driving shaft (701) is installed at the bottom of the bracket (1) along the length direction, and a driven shaft (702) is installed at the top of the bracket (1). The rotating arm (4) is installed on the driven shaft (702). The driving shaft (701) drives the driven shaft (702) to rotate through a transmission mechanism (8).

3. The rotary arm type rapeseed automatic sowing mechanism according to claim 2, characterized in that: A set of rotating arms (4), a seed storage tank (2) and a lower hopper (3) are respectively provided on both sides of the driven shaft (702).

4. The rotary arm type rapeseed automatic sowing mechanism according to claim 1, characterized in that: The fixed seed storage outer groove (201) and the movable seed storage inner groove (202) are both arc-shaped or semicircular open groove structures, with a notch (205) at the center thereof.

5. The rotary arm type rapeseed automatic sowing mechanism according to claim 1, characterized in that: A handle piece (204) is provided at one end of the movable seed storage inner tank (202).

6. The rotary arm type rapeseed automatic sowing mechanism according to claim 2, characterized in that: The transmission mechanism (8) comprises a driving sprocket (801) mounted on a driving shaft (701) and a driven sprocket (802) mounted on a driven shaft (702). A chain (803) is mounted between the driving sprocket (801) and the driven sprocket (802).

7. The rotary arm type rapeseed automatic sowing mechanism according to claim 1, characterized in that: The bracket (1) comprises a driving shaft mounting beam (101) erected along the short side and located at the bottom of the bracket (1) for carrying the driving shaft (701), a seed storage tank positioning rod (103) erected along the long side and located on the driving shaft mounting beam (101), a lower hopper mounting beam (102) erected along the short side at the bottom of the bracket (1), and a top mounting beam (104) erected along the short side at the top of the bracket (1).

8. The rotary arm type rapeseed automatic sowing mechanism according to claim 1, characterized in that: The discharge hopper (3) comprises a funnel-shaped inoculation funnel, and the outlet at the lower end of the inoculation funnel is connected to a discharge pipe (301).

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