Wheel body assembly for seeder and rolling type seeder

Abstract

The utility model discloses a wheel body assembly for a seeder and a rolling type seeder, and belongs to the technical field of seeding mechanical equipment. The wheel body assembly comprises a supporting wheel ring, a supporting wheel face is formed on the outer side wall of the supporting wheel ring in the circumferential direction, and a first annular top stopping end and a second annular top stopping end are formed in the supporting wheel ring in the lateral direction. The top stopping wheel disc is provided with a first annular containing groove right opposite to the first annular top stopping end, and the first annular top stopping end extends into the first annular containing groove and abuts against the inner side wall of the first annular containing groove. A second annular containing groove is formed in the position, right opposite to the second annular top stopping end, of the pressing disc, and the second annular top stopping end extends into the second annular containing groove and abuts against the inner side wall of the second annular containing groove in a stopping mode; and the connecting and locking mechanism is connected between the top stopping wheel disc and the pressing disc, and the connecting and locking mechanism is used for locking and installing the top stopping wheel disc and the pressing disc on the first annular top stopping end and the second annular top stopping end. The wheel body assembly disclosed by the utility model is beneficial to improving the reliability and the stability of seed taking and seed feeding of the seeder.

Description

Technical Field

[0001] The utility model relates to the technical field of sowing machinery and equipment, in particular to a wheel assembly for a seeder and a rolling seeder. Background Art

[0002] Wheat is a high-density crop, and a moderate planting density is conducive to improving the uniformity of wheat growth, enhancing the wheat's resistance to lodging, and also conducive to increasing wheat yield. In order to improve the appropriateness of wheat planting density in the existing technology, a hole seeder is used for sowing, and in the process of sowing wheat, an appropriate amount of wheat is planted in each wheat hole. Before the wheat seeds are buried in the soil, they need to be removed by a seed removal mechanism set in the hole seeder, and then the seeds are dropped through the sowing hole mouth set on the hole seeder, and then dropped into the soil.

[0003] Furthermore, the seed drill mainly includes a rolling support wheel body, a seed taking mechanism and a seed seed drill assembly. A seed storage cavity for storing seeds is formed in the rolling support wheel body, and the seed taking mechanism is installed on the rolling support wheel body. Specifically, the seed taking mechanism includes a rotating shaft, a swing arm and a seed drill. A rotating shaft through hole is provided at the lateral end of the support wheel ring, and a rotating shaft is rotatably installed in the rotating shaft through hole. A seed drill is installed in the middle of the rotating shaft, and one end of the rotating shaft is connected to a swing arm for driving the seed drill to rotate to realize seed taking and sowing. Further, the seed seed drill assembly is installed on the outer periphery of the rolling support wheel body. Further, the rolling support wheel body is mainly formed by installing two side wheel discs at both ends of the support wheel ring through multiple bolts.

[0004] However, in the existing seed drill, there is a gap between the two side discs installed together and the two ends of the support wheel ring. Debris or other impurities can easily enter the gap between the two side discs and the two ends of the support wheel ring. As the seed drill is used for a longer time, the amount of debris or other impurities accumulated in the gaps between the two side discs and the two ends of the support wheel ring increases. The accumulated debris or other impurities increase the resistance of the swing arm in the seed removal mechanism to the swing, and even make the swing arm unable to swing normally, thereby causing the seed drill to be unable to normally remove seeds and sow seeds, resulting in insufficient or even no seeds in the wheat hole, which has an adverse effect on the appropriateness of the wheat planting density and the wheat yield. In addition, the existing seed drill also has the above-mentioned problems when sowing soybeans and other types of seeds. Therefore, there is an urgent need for a wheel assembly that is conducive to improving the reliability and stability of seed removal and sowing of the seed drill. Summary of the Invention

[0005] The purpose of the present invention is to overcome at least one of the above-mentioned shortcomings of the prior art and to provide a wheel assembly for a seeder that is conducive to improving the reliability and stability of the seeder in taking and dropping seeds; in addition, a rolling seeder is also provided.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] According to one aspect of the present application, a wheel assembly for a seeder is provided, comprising:

[0008] A supporting wheel ring, wherein the outer side wall of the supporting wheel ring in the circumferential direction forms a supporting wheel surface, the supporting wheel ring forms an annular stop top 1 at a first end in the lateral direction, and the supporting wheel ring forms an annular stop top 2 at a second end in the lateral direction, and the annular stop top 2 is arranged away from the annular stop top 1;

[0009] A stop wheel disc is mounted on the annular stop top 1, and an annular receiving groove 1 is provided on the stop wheel disc opposite to the annular stop top 1. The annular stop top 1 extends into the annular receiving groove 1 and stops on the inner side wall of the annular receiving groove 1;

[0010] A pressure plate is mounted on the second annular stop top, the pressure plate is provided with a second annular receiving groove opposite to the second annular stop top, the second annular stop top extends into the second annular receiving groove and stops on the inner side wall of the second annular receiving groove;

[0011] A connecting locking mechanism is connected between the top-stop wheel disc and the pressure plate, and is used to lock the top-stop wheel disc and the pressure plate to be installed on the annular top-stopping end 1 and the annular top-stopping end 2.

[0012] The beneficial effects of the present invention are as follows: in this embodiment, an annular receiving groove 1 is provided on the stop wheel disc, and an annular receiving groove 2 is provided on the pressure plate. After the stop wheel disc and the pressure plate are locked and installed on the annular stop top 1 and the annular stop top 2 by connecting the locking mechanism, the annular stop top 1 is extended into the annular receiving groove 1 and is stopped on the inner side wall of the annular receiving groove 1, and the annular stop top 2 is extended into the annular receiving groove 2 and is stopped on the inner side wall of the annular receiving groove 2, which is conducive to reducing or preventing debris or other impurities from entering the lateral end of the support wheel ring and affecting the support wheel ring. The rotating shaft through hole at the lateral end and the rotating shaft installed in the rotating shaft through hole have an adverse effect, which is beneficial to reducing or avoiding the obstruction of the swing arm by debris or other impurities to the swing of the swing arm, ensuring that the seed remover installed in the middle of the rotating shaft rotates when the swing arm drives the seed remover to remove seeds and sow, reducing or avoiding the problem that the seed removing mechanism cannot remove seeds normally due to the obstruction of the swing arm by debris or other impurities; therefore, using the wheel body assembly in this embodiment as the rolling support wheel body of the seeder is beneficial to improving the reliability and stability of the seed remover in removing seeds and sowing.

[0013] In addition, based on the above technical solution, the present invention can also be improved as follows and can also have the following additional technical features.

[0014] According to one embodiment of the present application, a plurality of seed dropping openings for passing seeds are circumferentially spaced apart on the support wheel surface, a seed storage cavity for storing seeds is defined between the support wheel ring, the top stop wheel plate and the pressure plate, and the seed dropping openings are connected to the seed storage cavity.

[0015] The support wheel surface in this embodiment is provided with a plurality of seeding openings for passing seeds at circumferential intervals, which facilitates seeding through the seeding openings and is beneficial for adjusting the falling direction of the seeds in the seeding openings by designing the direction of the seeding openings so that the seeds fall into a reasonable seeding area.

[0016] According to one embodiment of the present application, the connection locking mechanism includes:

[0017] A plurality of bolt rods are provided, a plurality of mounting through holes 1 are circumferentially spaced apart on the top stop wheel disc, and the plurality of mounting through holes 1 are arranged near the edge of the top stop wheel disc, a plurality of mounting through holes 2 are circumferentially spaced apart on the pressure plate opposite to the plurality of mounting through holes, and the plurality of mounting through holes 2 are arranged near the edge of the pressure plate, each of the bolt rods is installed in the mounting through hole 1 and the mounting through hole 2, and the threaded end of each bolt rod passes through the mounting through hole 1 and the mounting through hole 2 horizontally respectively;

[0018] There are multiple locking nuts, and the threaded ends of the bolt rod passing through the first installation hole and the second installation hole are respectively threadedly connected with the locking nuts.

[0019] The connection locking mechanism in this embodiment includes a bolt rod and a locking nut, which facilitates locking the top stop wheel and the pressure plate on the annular stop top end one and the annular stop top end two through the bolt rod and the locking nut, and is also beneficial for appropriately adjusting the tightness of the top stop wheel and the pressure plate locked on the annular stop top end one and the annular stop top end two by adjusting the tightening degree of the locking nut.

[0020] According to one embodiment of the present application, a plurality of avoidance through holes are provided on the support wheel ring at circumferential intervals opposite to the plurality of the mounting through holes, and each of the bolt rods passes horizontally through the avoidance through hole.

[0021] The support wheel ring in this embodiment is provided with a plurality of avoidance holes spaced circumferentially opposite to the plurality of mounting holes, and the bolt rod passes horizontally through the avoidance holes, which facilitates the installation of the bolt rod and is beneficial for supporting and limiting the support wheel ring in the circumferential direction through the bolt rod.

[0022] According to one embodiment of the present application, the support wheel ring includes:

[0023] There are multiple wheel body units, each of which has an arc-shaped structure. Multiple wheel body units are connected end to end in the circumferential direction to form a circular wheel body. Each wheel body unit is provided with a seeding opening in the circumferential direction for passing seeds, and the seeding opening is connected to the inner side of the circular wheel body.

[0024] The support wheel ring in this embodiment includes multiple wheel body units, and the multiple wheel body units are connected end to end in the circumferential direction to form a circular wheel body, which is beneficial to reducing the difficulty of producing and manufacturing the support wheel ring, facilitating the production and manufacturing of the support wheel ring, and reducing the production cost of the support wheel ring; in addition, by providing a seeding opening for passing seeds in the circumferential direction of the wheel body unit, it is convenient to seed through the seeding opening.

[0025] According to one embodiment of the present application, the first annular stop top and the second annular stop top are both in a circular ring shape, and the first annular receiving groove and the second annular receiving groove are both in a circular ring shape.

[0026] The annular stop top 1 in this embodiment is in the shape of a circular ring, and the annular receiving groove 1 is in the shape of a circular ring, which is convenient for the annular stop top 1 to be extended into the annular receiving groove 1 and stop on the inner wall of the annular receiving groove 1, which is beneficial for the annular stop top 1 to be tightly attached to the inner wall of the annular receiving groove 1, reducing or avoiding the passage of debris or other impurities through the gap between the annular stop top 1 and the inner wall of the annular receiving groove 1; similarly, the annular stop top 2 is in the shape of a circular ring, and the annular receiving groove 2 is in the shape of a circular ring, which is convenient for the annular stop top 2 to be extended into the annular receiving groove 2 and stop on the inner wall of the annular receiving groove 2, which is beneficial for the annular stop top 2 to be tightly attached to the inner wall of the annular receiving groove 2, reducing or avoiding the passage of debris or other impurities through the gap between the annular stop top 2 and the inner wall of the annular receiving groove 2.

[0027] According to one embodiment of the present application, the circumferential inner side walls of the annular receiving groove 1 and the annular receiving groove 2 are both bevel structures, the annular receiving groove 1 and the annular receiving groove 2 respectively expand their openings outward, and the projections of the cross sections of the annular receiving groove 1 and the annular receiving groove 2 in the vertical direction are trapezoidal or isosceles trapezoidal; the annular stop top 1 extends into the annular receiving groove 1 and stops on the bevel structure of the annular receiving groove 1, and the annular stop top 2 extends into the annular receiving groove 2 and stops on the bevel structure of the annular receiving groove 2.

[0028] The circumferential inner side walls of the annular receiving groove 1 and the annular receiving groove 2 in this embodiment are both beveled structures, the annular stop top 1 extends into the annular receiving groove 1 and stops on the beveled structure of the annular receiving groove 1, and the annular stop top 2 extends into the annular receiving groove 2 and stops on the beveled structure of the annular receiving groove 2. In the process of locking the stop wheel disc and the pressure plate on the annular stop top 1 and the annular stop top 2 through the connection locking mechanism, under the locking action of the connection locking mechanism, the beveled structure has the effect of squeezing the support wheel ring toward the center of the annular receiving groove 1 and the annular receiving groove 2, which is beneficial to confine the support wheel ring within the annular receiving groove 1 and the annular receiving groove 2; especially when the support wheel ring is assembled by multiple wheel body units, the beveled structure can have the effect of squeezing the multiple wheel body units toward the center of the annular receiving groove 1 and the annular receiving groove 2, so that the multiple wheel body units fit tightly.

[0029] According to one embodiment of the present application, the inclination angle of the circumferential inner side walls of the annular receiving groove 1 and the annular receiving groove 2 relative to the horizontal plane is 5°-45°.

[0030] The inclination angle of the circumferential inner side walls of the annular receiving groove 1 and the annular receiving groove 2 relative to the horizontal plane in this embodiment is 5°-45°, which is conducive to the circumferential inner side walls of the annular receiving groove 1 and the annular receiving groove 2 having the effect of squeezing the supporting wheel ring toward the center of the annular receiving groove 1 and the annular receiving groove 2. Especially when the supporting wheel ring is assembled by multiple wheel body units, the circumferential inner side walls of the annular receiving groove 1 and the annular receiving groove 2 can have the effect of squeezing the multiple wheel body units toward the center of the annular receiving groove 1 and the annular receiving groove 2, so that the multiple wheel body units can fit tightly and reliably.

[0031] According to another aspect of the present application, a rolling seeder is provided, comprising:

[0032] The wheel body assembly includes a supporting wheel ring, a stop wheel disc, a pressure plate and a connection locking mechanism, wherein the outer side wall of the supporting wheel ring in the circumferential direction forms a supporting wheel surface, the supporting wheel ring forms an annular stop top 1 at a first end in the lateral direction, and the supporting wheel ring forms an annular stop top 2 at a second end in the lateral direction, and the annular stop top 2 is arranged away from the annular stop top 1;

[0033] The top-stop wheel disc is used to be installed on the annular top-stopping end 1, and an annular receiving groove 1 is provided on the top-stop wheel disc directly facing the annular top-stopping end 1, and the annular top-stopping end 1 extends into the annular receiving groove 1;

[0034] The pressure plate is used to be installed on the second annular stop top, and the pressure plate is provided with a second annular receiving groove opposite to the second annular stop top, and the second annular stop top extends into the second annular receiving groove;

[0035] The connecting locking mechanism is connected between the top-stop wheel disc and the pressure plate, and is used to lock the top-stop wheel disc and the pressure plate to be installed on the annular top-stopping end 1 and the annular top-stopping end 2;

[0036] The rolling seeder also includes:

[0037] Swing support frame;

[0038] A support shaft, horizontally fixedly mounted on the swing support frame;

[0039] A bearing assembly, fixedly mounted on the circumference of the support shaft;

[0040] A mounting support sleeve is provided at the center of the side of the top-stop wheel disc facing the pressure plate, and the mounting support sleeve is installed on the peripheral side of the bearing assembly and can rotate relative to the support shaft. A shaft hole 1 is provided at the center of the top-stop wheel disc, and an opening is provided on the pressure plate facing the shaft hole 1. The support shaft is horizontally inserted into the shaft hole 1 and the opening, and the support wheel ring, the top-stop wheel disc and the pressure plate can rotate synchronously in the circumferential direction relative to the support shaft;

[0041] A seed taking mechanism is mounted on the support wheel ring and is used for taking seeds;

[0042] A seed hole sowing assembly, the seed hole sowing assembly is used for sowing, the seed hole sowing assembly includes a circular arc-shaped support plate and a hole sowing nozzle, the circular arc-shaped support plates are provided in plurality, the plurality of circular arc-shaped support plates are circumferentially spaced apart and installed on the outer side wall of the support wheel surface, and the two ends of the circular arc-shaped support plates respectively extend into and stop on the inner side walls of the annular receiving groove 1 and the annular receiving groove 2, the plurality of hole sowing nozzles are provided and circumferentially spaced apart and installed on the outer side wall of the circular arc-shaped support plate.

[0043] The two ends of the circular arc support plates in this embodiment are circumferentially installed on the outer wall of the support wheel surface, and the two ends of the circular arc support plates extend into and stop on the inner wall of the annular receiving groove 1 and the annular receiving groove 2 respectively, and the annular stop top 1 extends into the annular receiving groove 1, and the annular stop top 2 extends into the annular receiving groove 2, which is conducive to reducing or avoiding debris or other impurities from entering the lateral end of the support wheel ring and causing adverse effects on the rotating shaft through hole set at the lateral end of the support wheel ring and the rotating shaft rotatably installed in the rotating shaft through hole. It is conducive to reducing or avoiding debris or other impurities from hindering the swing of the swing arm, ensuring that the seed remover installed in the middle of the rotating shaft can rotate when the swing arm drives the seed remover to take seeds and sow, reducing or avoiding the problem that the seed removing mechanism cannot perform normal seed removal due to debris or other impurities hindering the swing of the swing arm; therefore, the use of the rolling seeder in this embodiment is conducive to improving the reliability and stability of the seed remover in taking seeds and sowing.

[0044] According to one embodiment of the present application, the circumferential inner side walls of the annular receiving groove 1 and the annular receiving groove 2 are both bevel structures, the annular receiving groove 1 and the annular receiving groove 2 respectively expand their openings outward, and the projections of the cross sections of the annular receiving groove 1 and the annular receiving groove 2 in the vertical direction are trapezoidal or isosceles trapezoidal; one end of the arc-shaped support plate extends into the annular receiving groove 1 and stops on the bevel structure of the annular receiving groove 1, and the other end of the arc-shaped support plate extends into the annular receiving groove 2 and stops on the bevel structure of the annular receiving groove 2.

[0045] The circumferential inner side walls of the annular receiving groove 1 and the annular receiving groove 2 in this embodiment are both beveled structures, one end of the arc-shaped support plate extends into the annular receiving groove 1 and stops on the beveled structure of the annular receiving groove 1, and the other end of the arc-shaped support plate extends into the annular receiving groove 2 and stops on the beveled structure of the annular receiving groove 2. In the process of locking the stop wheel disc and the pressure plate on the annular stop top 1 and the annular stop top 2 through the connection locking mechanism, under the locking action of the connection locking mechanism, the beveled structure has the effect of squeezing the arc-shaped support plate and the support wheel ring toward the center of the annular receiving groove 1 and the annular receiving groove 2, which is conducive to confining the arc-shaped support plate and the support wheel ring in the annular shaped receiving groove one and annular receiving groove two, and is conducive to making the circular arc-shaped support plate and the supporting wheel ring fit closely, thereby improving the compactness of the installation of the circular arc-shaped support plate and the supporting wheel ring; especially when the supporting wheel ring is assembled by multiple wheel body units, the bevel structure can have the effect of squeezing the multiple wheel body units toward the center of the annular receiving groove one and the annular receiving groove two, so that the multiple wheel body units fit closely; in addition, when the circular arc-shaped support plate is composed of multiple circular arc-shaped panels, the bevel structure can have the effect of squeezing the multiple circular arc-shaped panels toward the center of the annular receiving groove one and the annular receiving groove two, so that the multiple circular arc-shaped panels are compactly attached to the outer wall of the supporting wheel surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0047] Figure 1 This is a structural schematic diagram of a wheel assembly for a seeder according to an embodiment of the utility model;

[0048] Figure 2 This is a structural diagram of a top-stop wheel according to an embodiment of the present utility model;

[0049] Figure 3This is a schematic structural diagram of a pressure plate according to an embodiment of the present utility model;

[0050] Figure 4 for Figure 2 A cross-sectional view of the top stop wheel in FIG.

[0051] Figure 5 for Figure 3 A cross-sectional view of the pressure plate in FIG.

[0052] Figure 6 This is a structural diagram of a rolling seeder according to an embodiment of the present utility model;

[0053] Figure 7 for Figure 6 Schematic diagram of the structure of the hidden pressure plate in the rolling seeder. DETAILED DESCRIPTION

[0054] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0055] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0056] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0057] In one aspect of the present application, a wheel assembly for a seed drill is provided, such as Figures 1 to 7 Shown, including:

[0058] A supporting wheel ring 1, wherein the outer side wall of the supporting wheel ring 1 in the circumferential direction forms a supporting wheel surface, the supporting wheel ring 1 forms an annular stop top 1 at a first end in the lateral direction, and the supporting wheel ring 1 forms an annular stop top 2 at a second end in the lateral direction, and the annular stop top 2 is arranged opposite to the annular stop top 1;

[0059] The top-stop wheel disc 2 is used to be installed on the annular top-stopping top. The top-stopping wheel disc 2 is provided with an annular receiving groove 20 opposite to the annular top-stopping top. The annular top-stopping top extends into the annular receiving groove 20 and stops on the inner side wall of the annular receiving groove 20.

[0060] The pressure plate 3 is used to be installed on the annular stop top 2. The pressure plate 3 is provided with an annular receiving groove 2 30 opposite the annular stop top 2. The annular stop top 2 extends into the annular receiving groove 2 30 and stops on the inner side wall of the annular receiving groove 2 30;

[0061] The connecting locking mechanism is connected between the top stop wheel disc 2 and the pressure plate 3, and is used to lock the top stop wheel disc 2 and the pressure plate 3 and install them on the annular top stop portion 1 and the annular top stop portion 2.

[0062] In this embodiment, if Figures 1 to 7 As shown, in this embodiment, an annular receiving groove 1 20 is provided on the stop wheel disc 2, and an annular receiving groove 2 30 is provided on the pressure plate 3. After the stop wheel disc 2 and the pressure plate 3 are locked and installed on the annular stop top 1 and the annular stop top 2 by connecting the locking mechanism, the annular stop top 1 is extended into the annular receiving groove 1 20 and is stopped on the inner side wall of the annular receiving groove 1 20, and the annular stop top 2 is extended into the annular receiving groove 2 30 and is stopped on the inner side wall of the annular receiving groove 2 30, which is beneficial to reduce or avoid debris or other impurities from entering the lateral end of the support wheel ring 1 and the support wheel ring 1. The through hole of the rotating shaft 71 at the lateral end and the rotating shaft 71 installed in the through hole of the rotating shaft 71 have an adverse effect, which is beneficial to reducing or avoiding the obstruction of the swing arm to the swing of the swing arm caused by debris or other impurities, ensuring that the seed remover 7 installed in the middle of the rotating shaft 71 rotates when the swing arm drives the seed remover 7 to remove seeds and sow, reducing or avoiding the problem that the seed removing mechanism cannot remove seeds normally due to the obstruction of the swing arm to the swing of the swing arm caused by debris or other impurities; therefore, using the wheel body assembly in this embodiment as the rolling support wheel body of the seeder is beneficial to improving the reliability and stability of the seeder in removing seeds and sowing.

[0063] In this embodiment, if Figures 1 to 5 As shown, the support wheel ring 1 in this embodiment is a circular ring structure, the top stop wheel disc 2 is a disc structure, the pressure plate 3 is a circular ring structure, and a circular mounting opening is formed in the middle of the pressure plate 3, and the circular mounting opening is used to install the side seed feed cover.

[0064] One embodiment of the present application, such as Figure 1 As shown, a plurality of seed dropping openings for passing seeds are circumferentially spaced on the support wheel surface, and a seed storage cavity for storing seeds is defined between the support wheel ring 1, the top stop wheel disc 2 and the pressure plate 3, and the seed dropping openings are connected to the seed storage cavity.

[0065] In this embodiment, if Figure 1 As shown, the support wheel surface in this embodiment is provided with a plurality of seeding openings for passing seeds at circumferential intervals, which facilitates seeding through the seeding openings and is beneficial for adjusting the falling direction of the seeds in the seeding openings by designing the direction of the seeding openings so that the seeds fall into a reasonable seeding area.

[0066] In this embodiment, if Figure 1As shown, the seeding ports in this embodiment include a seeding port 10 and a seeding port 2 11. There are multiple seeding ports 10 and seeding ports 2 11 respectively and they are arranged alternately. The centers of the multiple seeding ports 10 are on the same plane in the left and right directions, and the centers of the multiple seeding ports 2 11 are on the same plane in the left and right directions. The multiple seeding ports 2 11 in this embodiment are located at the right end of the multiple seeding ports 10. There can be multiple ways to set the seeding ports 10 and seeding ports 2 11 to facilitate the passage of seeds to achieve seeding.

[0067] One embodiment of the present application, such as Figure 1 and Figure 6 As shown, the connection locking mechanism includes:

[0068] There are multiple bolt rods 4. A plurality of mounting through holes 22 are circumferentially spaced apart on the top stop wheel disc 2. The plurality of mounting through holes 22 are arranged near the edge of the top stop wheel disc 2. A plurality of mounting through holes 31 are circumferentially spaced apart on the pressure plate 3, facing the plurality of mounting through holes 22. The plurality of mounting through holes 31 are arranged near the edge of the pressure plate 3. Each bolt rod 4 is installed in the mounting through hole 22 and the mounting through hole 31, and the threaded end of each bolt rod 4 extends horizontally through the mounting through hole 22 and the mounting through hole 31, respectively.

[0069] There are multiple locking nuts 40, and the threaded ends of the bolt rod 4 passing through the first installation through hole 22 and the second installation through hole 31 are respectively threadedly connected with locking nuts 40.

[0070] In this embodiment, if Figure 1 and Figure 6 As shown, the connection locking mechanism in this embodiment includes a bolt rod 4 and a locking nut 40, which facilitates locking the top stop wheel 2 and the pressure plate 3 on the annular top stop 1 and the annular top stop 2 via the bolt rod 4 and the locking nut 40. The tightness of the top stop wheel 2 and the pressure plate 3 locked on the annular top stop 1 and the annular top stop 2 can also be appropriately adjusted by adjusting the tightening degree of the locking nut 40. In addition, the connection locking mechanism in this embodiment can also use stud bolts or other locking members.

[0071] One embodiment of the present application, such as Figure 7 As shown, a plurality of avoidance holes are provided on the supporting wheel ring 1 at circumferential intervals opposite to the plurality of mounting through holes 22, and each bolt rod 4 passes through the avoidance through hole horizontally.

[0072] In this embodiment, if Figure 7 As shown, the support wheel ring 1 in this embodiment is provided with a plurality of avoidance holes 22 circumferentially spaced opposite to the plurality of mounting through holes, and the bolt rod 4 passes horizontally through the avoidance holes, which facilitates the installation of the bolt rod 4 and is beneficial for supporting and limiting the support wheel ring 1 in the circumferential direction through the bolt rod 4.

[0073] One embodiment of the present application, such as Figure 1 and Figure 7 As shown, the supporting wheel ring 1 includes:

[0074] There are multiple wheel body units, each of which has an arc-shaped structure. Multiple wheel body units are connected end to end in the circumferential direction to form a circular wheel body. Each wheel body unit is provided with a seeding port for passing seeds in the circumferential direction, and the seeding port is connected to the inner side of the circular wheel body.

[0075] In this embodiment, if Figure 1 and Figure 7 As shown, the support wheel ring 1 in this embodiment includes a plurality of wheel body units, and the plurality of wheel body units are connected end to end in the circumferential direction to form a circular wheel body, which is conducive to reducing the difficulty of producing and manufacturing the support wheel ring 1, is conducive to producing and manufacturing the support wheel ring 1, and reduces the production cost of the support wheel ring 1; in addition, by providing a seeding opening for passing seeds in the circumferential direction of the wheel body unit, it is convenient to seed through the seeding opening.

[0076] In this embodiment, if Figure 1 and Figure 7 As shown, the wheel unit in this embodiment includes a plurality of arc-shaped assembly units 1 and a plurality of arc-shaped assembly units 2. The plurality of arc-shaped assembly units are circumferentially connected end to end to form the support wheel rim 1, and the plurality of arc-shaped assembly units 2 are circumferentially connected end to end to form the support wheel rim 2. The plurality of arc-shaped assembly units 2 are respectively spliced with the arc-shaped assembly units 1 adjacent thereto and fixed by a plurality of bolts 12 and a plurality of nuts 13, so that the support wheel rim 2 is assembled on the outside of the support wheel rim 1 to form the support wheel ring 1 in this embodiment. Furthermore, the structures of the arc-shaped assembly units 1 and the arc-shaped assembly units 2 can have various configurations; in addition, the wheel unit can also be provided with other structures to facilitate connection to form a suitable annular wheel body and to facilitate installation of the seed removal mechanism.

[0077] Further, such as Figure 1 As shown, there are two types of wheel units in this embodiment. The difference between the two wheel units is that one wheel unit is provided with a seeding port 10, and the other wheel unit is provided with a seeding port 2 11. It should be noted that the seeding port 10 and the seeding port 2 11 are essentially both seeding ports. The difference between the seeding port 10 and the seeding port 2 11 is that they are provided at different positions, thereby defining them as different wheel units. The seeding port 10 and the seeding port 2 11 can also be provided at the same position and the wheel units can be regarded as the same type of wheel units.

[0078] One embodiment of the present application, such as Figure 1 and Figure 7As shown, the annular stop top 1 and the annular stop top 2 are both in the shape of a circular ring, and the annular receiving groove 1 20 and the annular receiving groove 2 30 are both in the shape of a circular ring.

[0079] In this embodiment, if Figure 1 and Figure 7 As shown, the annular stop top 1 in this embodiment is in the shape of a circular ring, and the annular receiving groove 1 20 is in the shape of a circular ring, which makes it easy to extend the annular stop top 1 into the annular receiving groove 1 20 and stop it on the inner wall of the annular receiving groove 1 20, which is beneficial for the annular stop top 1 to be tightly attached to the inner wall of the annular receiving groove 1 20, reducing or avoiding the passage of debris or other impurities through the gap between the annular stop top 1 and the inner wall of the annular receiving groove 1 20; similarly, the annular stop top 2 is in the shape of a circular ring, and the annular receiving groove 2 30 is in the shape of a circular ring, which makes it easy to extend the annular stop top 2 into the annular receiving groove 2 30 and stop it on the inner wall of the annular receiving groove 2 30, which is beneficial for the annular stop top 2 to be tightly attached to the inner wall of the annular receiving groove 2 30, reducing or avoiding the passage of debris or other impurities through the gap between the annular stop top 2 and the inner wall of the annular receiving groove 2 30.

[0080] One embodiment of the present application, such as Figures 2 to 5 As shown, the circumferential inner side walls of the annular receiving groove 1 20 and the annular receiving groove 2 30 are both beveled structures, the annular receiving groove 1 20 and the annular receiving groove 2 30 respectively expand their openings outward, and the projections of the cross sections of the annular receiving groove 1 20 and the annular receiving groove 2 30 in the vertical direction are trapezoidal or isosceles trapezoidal; the annular stop top 1 extends into the annular receiving groove 1 20 and stops on the beveled structure of the annular receiving groove 1 20, and the annular stop top 2 extends into the annular receiving groove 2 30 and stops on the beveled structure of the annular receiving groove 2 30.

[0081] In this embodiment, if Figures 2 to 5 As shown, the circumferential inner side walls of the annular receiving groove 1 20 and the annular receiving groove 2 30 in this embodiment are both bevel structures, the annular stop top 1 extends into the annular receiving groove 1 20 and stops on the bevel structure of the annular receiving groove 1 20, and the annular stop top 2 extends into the annular receiving groove 2 30 and stops on the bevel structure of the annular receiving groove 2 30. In the process of locking the stop wheel 2 and the pressure plate 3 to be installed on the annular stop top 1 and the annular stop top 2 by connecting the locking mechanism, Under the locking action of the mechanism, the bevel structure has the effect of squeezing the support wheel ring 1 toward the center of the annular receiving groove 1 20 and the annular receiving groove 2 30, which is beneficial to confine the support wheel ring 1 within the annular receiving groove 1 20 and the annular receiving groove 2 30; especially when the support wheel ring 1 is assembled and formed by multiple wheel body units, the bevel structure can have the effect of squeezing the multiple wheel body units toward the center of the annular receiving groove 1 20 and the annular receiving groove 2 30, so that the multiple wheel body units fit tightly.

[0082] In this embodiment, if Figure 4 and Figure 5 As shown, the circumferential inner wall of the annular receiving groove 20 in this embodiment includes a circumferential inner wall 1 201 and a circumferential inner wall 202, and the circumferential inner wall 1 201 is located on the inner side of the circumferential inner wall 202; further, the circumferential inner wall of the annular receiving groove 2 30 in this embodiment includes a circumferential inner wall 301 and a circumferential inner wall 4 302, and the circumferential inner wall 301 is located on the inner side of the circumferential inner wall 4 302.

[0083] One embodiment of the present application, such as Figure 4 and Figure 5 As shown, the inclination angle of the circumferential inner side walls of the annular receiving groove 1 20 and the annular receiving groove 2 30 relative to the horizontal plane is 5°-45°.

[0084] In this embodiment, if Figure 4 and Figure 5 As shown, the inclination angle of the circumferential inner side walls of the annular receiving groove 1 20 and the annular receiving groove 2 30 relative to the horizontal plane in this embodiment is 5°-45°, which is conducive to the circumferential inner side walls of the annular receiving groove 1 20 and the annular receiving groove 2 30 having the effect of squeezing the supporting wheel ring 1 toward the center of the annular receiving groove 1 20 and the annular receiving groove 2 30. In particular, when the supporting wheel ring 1 is assembled by multiple wheel body units, the circumferential inner side walls of the annular receiving groove 1 20 and the annular receiving groove 2 30 can have the effect of squeezing the multiple wheel body units toward the center of the annular receiving groove 1 20 and the annular receiving groove 2 30, so that the multiple wheel body units can fit tightly and reliably.

[0085] In this embodiment, if Figure 4 As shown, the mounting through hole 1 22 in this embodiment passes through the middle of the annular receiving groove 1 20, and the circumferential inner wall of the annular receiving groove 1 20 includes a circumferential inner wall 1 201 and a circumferential inner wall 202. When a center line is drawn along the center of the mounting through hole 1 22 to form a center line 1, the inclination angle range of the circumferential inner wall 1 201 and the circumferential inner wall 202 relative to the center line 1 is 5°-45°, and the inclination angle of the circumferential inner wall 1 201 and the circumferential inner wall 202 relative to the center line 1 can be any value between 5°-45°.

[0086] In this embodiment, if Figure 5 As shown, the second mounting hole 31 in this embodiment passes through the middle of the second annular receiving groove 30, and the circumferential inner wall includes a third circumferential inner wall 301 and a fourth circumferential inner wall 302. When a center line is drawn along the center of the second mounting hole 31 to form a center line 2, the inclination angle range of the third circumferential inner wall 301 and the fourth circumferential inner wall 302 relative to the center line 2 is 5°-45°, and the inclination angle of the third circumferential inner wall 301 and the fourth circumferential inner wall 302 relative to the center line 2 can be any value between 5°-45°.

[0087] In another aspect of the present application, a rolling seeder is provided, such as Figure 6 and Figure 7 Shown, including:

[0088] The wheel body assembly includes a supporting wheel ring 1, a stop wheel disc 2, a pressure plate 3 and a connecting locking mechanism. The outer side wall of the supporting wheel ring 1 in the circumferential direction forms a supporting wheel surface. The supporting wheel ring 1 forms an annular stop top 1 at the first end in the lateral direction. The supporting wheel ring 1 forms an annular stop top 2 at the second end in the lateral direction. The annular stop top 2 is arranged opposite to the annular stop top 1.

[0089] The top-stop wheel disc 2 is used to be installed on the annular top-stopping top. An annular receiving groove 20 is provided on the top-stop wheel disc 2 opposite to the annular top-stopping top. The annular top-stopping top extends into the annular receiving groove 20.

[0090] The pressure plate 3 is used to be installed on the annular stop top 2, and the pressure plate 3 is provided with an annular receiving groove 2 30 opposite to the annular stop top 2, and the annular stop top 2 extends into the annular receiving groove 2 30;

[0091] The connecting locking mechanism is connected between the top stop wheel disc 2 and the pressure plate 3, and is used to lock the top stop wheel disc 2 and the pressure plate 3 on the annular top stop 1 and the annular top stop 2;

[0092] The rolling seeder also includes:

[0093] Swing support frame;

[0094] The support shaft 5 is fixedly mounted horizontally on the swing support frame;

[0095] The bearing assembly is fixedly mounted on the peripheral side of the support shaft 5;

[0096] A mounting support sleeve 21 is provided at the center of the side of the stop wheel disc 2 facing the pressure plate 3. The mounting support sleeve 21 is installed on the peripheral side of the bearing assembly and can rotate relative to the support shaft 5. A shaft hole 1 is provided at the center of the stop wheel disc 2, and an opening is provided on the pressure plate 3 opposite to the shaft hole 1. The support shaft 5 is horizontally inserted into the shaft hole 1 and the opening. The support wheel ring 1, the stop wheel disc 2 and the pressure plate 3 can rotate synchronously in the circumferential direction relative to the support shaft 5;

[0097] A seed taking mechanism is mounted on the supporting wheel ring 1 and is used for taking seeds;

[0098] The seed hole sowing component is used for sowing. The seed hole sowing component includes a circular arc-shaped support plate 8 and a hole sowing nozzle 9. There are multiple circular arc-shaped support plates 8. The multiple circular arc-shaped support plates 8 are circumferentially installed on the outer wall of the support wheel surface, and the two ends of the circular arc-shaped support plate 8 respectively extend into and stop on the inner wall of the annular receiving groove 1 20 and the annular receiving groove 2 30. There are multiple hole sowing nozzles 9 and they are circumferentially installed on the outer wall of the circular arc-shaped support plate 8.

[0099] In this embodiment, if Figure 6 and Figure 7 As shown, in this embodiment, a plurality of arc-shaped support plates 8 are circumferentially spaced and installed on the outer wall of the support wheel surface, and the two ends of the arc-shaped support plates 8 extend into and stop on the inner wall of the annular receiving groove 1 20 and the annular receiving groove 2 30 respectively, and the annular stop top 1 extends into the annular receiving groove 1 20, and the annular stop top 2 extends into the annular receiving groove 2 30, which is conducive to reducing or avoiding debris or other impurities from entering the lateral end of the support wheel ring 1 and causing adverse effects on the through hole of the rotating shaft 71 set at the lateral end of the support wheel ring 1 and the rotating shaft 71 rotatably installed in the through hole of the rotating shaft 71, which is conducive to reducing or avoiding the obstruction of the swing arm by debris or other impurities to the swing arm, ensuring that the seed remover 7 installed in the middle of the rotating shaft 71 can rotate when the swing arm drives the seed remover 7 to remove seeds and sow, reducing or avoiding the problem that the seed removing mechanism cannot perform normal seed removal due to the obstruction of the swing arm by debris or other impurities; thus, the use of the rolling seeder in this embodiment is conducive to improving the reliability and stability of the seeder in removing seeds and sowing.

[0100] In this embodiment, if Figure 6 and Figure 7 As shown, a circular mounting opening is formed in the middle of the pressure plate 3, and the circular mounting opening is used to install a lateral seed feed cover. The lateral seed feed cover is fixedly mounted on the circumference of the support shaft 5 by a nut. The support shaft 5 passes through the center of the lateral seed feed cover. The lateral seed feed cover is provided with a seed inlet for feeding seeds, which facilitates the installation of one end of the seed delivery tube on the seed inlet and the connection of the other end of the seed delivery tube to the seed storage box, so as to facilitate the addition of seeds to the seed storage cavity in the rolling seeder through the seed delivery tube. Furthermore, the outer side of the lateral seed feed cover is close to the inner side wall of the circular mounting opening, and the gap formed between the outer side of the lateral seed feed cover and the inner side wall of the circular mounting opening is small. When the rolling seeder rolls, the pressure plate 3 rotates relative to the lateral seed feed cover. It should be noted that the specific structure and installation method of the side seed feed cover can refer to the existing technology in this field. The side seed feed cover is not the focus of this application and will not be described in detail here. The side seed feed cover is not illustrated in this embodiment. In addition, the seed removal mechanism in the rolling seeder, other structures of the rolling seeder and the working principle can also refer to the hole seeder or similar seeder in the existing technology and will not be described in detail here.

[0101] Further, such as Figure 6 and Figure 7 As shown, the swing support frame in this embodiment is used to be installed on the frame of the seeder, and the support shaft 5 is fixedly installed on the swing support frame. During the sowing operation of the seeder, the rolling seeder can swing in the vertical direction relative to the frame of the seeder. It should be noted that the swing support frame is not illustrated in this embodiment. The structure of the swing support frame and the specific method of installing it on the frame of the seeder can refer to the existing technology in this field and will not be described in detail here.

[0102] Furthermore, in this embodiment, Figure 6 and Figure 7 As shown, a mounting groove with an outer side open is defined between the top stop wheel 2 and the pressure plate 3. The acupuncture nozzle 9 in this embodiment is installed in the mounting groove and the fixed nozzle part on the acupuncture nozzle 9 is fixed on the arc-shaped support plate 8. Specifically, the specific structure of the acupuncture nozzle 9 and the method of installing it on the arc-shaped support plate 8 can also refer to the acupuncture device in the prior art and will not be repeated here.

[0103] In this embodiment, if Figure 7 As shown, the seed taking mechanism in this embodiment includes a rotating shaft 71, a swing arm and a seed taker 7, and the seed taker 7 is fixedly mounted on the rotating shaft 71. The right end of the rotating shaft 71 passes through the supporting wheel ring 1, and the left end supporting wheel ring 1 of the rotating shaft 71 passes through the supporting wheel ring 1 and is connected to the swing arm. The swing arm is used to contact and connect with the swing drive rail on the seed taking mechanism. Furthermore, in order to facilitate the installation of the swing drive rail in this embodiment, a swing drive connecting seat 6 is provided. The swing drive connecting seat 6 includes a mounting plate and a rotation support protrusion 60. The rotation support protrusion 60 is connected to the center of the right side of the mounting plate. The swing drive rail is mounted on the left side of the mounting plate and is located on the right side of the top stop wheel disc 2. The rotation support protrusion 60 in this embodiment is provided with a mounting groove 211 The rotating support protrusion 60 is rotatably mounted on the outer periphery of the mounting protrusion through two bearings 50, and the two bearings 50 are mounted in the mounting groove 211 on the rotating support protrusion 60; in addition, a locking groove is provided at the right end of the rotating support protrusion 60, and the locking groove is used to engage with the locking protrusion on the lateral seed feed cover to fix the setting position of the swing drive rail; further, the seed remover 7 in this embodiment is provided with two seed removal nests 70, and the seed removal nests 70 can also be provided with one, three, etc. as needed; in addition, other structures and installation methods of the seed removal mechanism in this embodiment can also refer to the existing technology in the field, and the specific structure and setting method of the swing drive rail can also refer to the existing technology in the field, and will not be repeated here.

[0104] In this embodiment, if Figure 6 and Figure 7As shown, the two ends of the arc-shaped support plate 8 extend into the annular receiving groove 1 20 and the annular receiving groove 2 30. The arc-shaped support plate 8 is pressed against the circumferential inner sidewalls of the annular receiving groove 1 20 and the annular receiving groove 2 30. The circumferential inner sidewalls of the annular receiving groove 1 20 and the annular receiving groove 2 30 are indirectly pressed against the annular stop top 1 and the annular stop top 2 of the support wheel ring 1. Alternatively, without pressing the arc-shaped support plate 8 through the annular receiving groove 1 20 and the annular receiving groove 2 30, the arc-shaped support plate 8 can be fixedly connected between the stop wheel disc 2, the pressure plate 3 and the support wheel ring 1 by bolts, and directly pressed against the annular stop top 1 and the annular stop top 2 of the support wheel ring 1 through the circumferential inner sidewalls of the annular receiving groove 1 20 and the annular receiving groove 2 30.

[0105] One embodiment of the present application, such as Figures 2 to 5 As shown, the circumferential inner side walls of the annular receiving groove 1 20 and the annular receiving groove 2 30 are both beveled structures, the annular receiving groove 1 20 and the annular receiving groove 2 30 are respectively expanded outward, and the projections of the cross sections of the annular receiving groove 1 20 and the annular receiving groove 2 30 in the vertical direction are trapezoidal or isosceles trapezoidal; one end of the arc-shaped support plate 8 extends into the annular receiving groove 1 20 and stops on the beveled structure of the annular receiving groove 1 20, and the other end of the arc-shaped support plate 8 extends into the annular receiving groove 2 30 and stops on the beveled structure of the annular receiving groove 2 30.

[0106] In this embodiment, if Figures 2 to 5As shown, the circumferential inner side walls of the annular receiving groove 1 20 and the annular receiving groove 2 30 in this embodiment are both beveled structures, one end of the arc-shaped support plate 8 extends into the annular receiving groove 1 20 and stops on the beveled structure of the annular receiving groove 1 20, and the other end of the arc-shaped support plate 8 extends into the annular receiving groove 2 30 and stops on the beveled structure of the annular receiving groove 2 30. In the process of locking the stop wheel plate 2 and the pressure plate 3 to be installed on the annular stop top 1 and the annular stop top 2 through the connection locking mechanism, under the locking action of the connection locking mechanism, the beveled structure has the effect of squeezing the arc-shaped support plate 8 and the support wheel ring 1 toward the center of the annular receiving groove 1 20 and the annular receiving groove 2 30, which is conducive to the arc-shaped support plate 8 and the support wheel ring 1 is limited in the annular receiving groove 1 20 and the annular receiving groove 2 30, and is conducive to making the arc-shaped support plate 8 and the supporting wheel ring 1 fit closely, thereby improving the compactness of the installation of the arc-shaped support plate 8 and the supporting wheel ring 1; especially when the supporting wheel ring 1 is assembled by a plurality of wheel body units, the bevel structure can have the effect of squeezing the plurality of wheel body units toward the center of the annular receiving groove 1 20 and the annular receiving groove 2 30, so that the plurality of wheel body units fit closely; in addition, when the arc-shaped support plate 8 is composed of a plurality of arc-shaped panels, the bevel structure can have the effect of squeezing the plurality of arc-shaped panels toward the center of the annular receiving groove 1 20 and the annular receiving groove 2 30, so that the plurality of arc-shaped panels are compactly attached to the outer wall of the supporting wheel surface.

[0107] In addition, in addition to the technical solutions disclosed in this embodiment, the seed-taking mechanism, other parts of the seeder, and their working principles in the utility model can refer to the conventional technical solutions in this technical field. However, these conventional technical solutions are not the focus of the utility model, and the utility model will not be described in detail here.

[0108] In this utility model, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integral; "connected" can mean directly or indirectly through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0109] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present application.

[0110] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0111] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A wheel assembly for a seeder, characterized in that: include: A supporting wheel ring, wherein the outer side wall of the supporting wheel ring in the circumferential direction forms a supporting wheel surface, the supporting wheel ring forms an annular stop top 1 at a first end in the lateral direction, and the supporting wheel ring forms an annular stop top 2 at a second end in the lateral direction, and the annular stop top 2 is arranged away from the annular stop top 1; A stop wheel disc is mounted on the annular stop top 1, and an annular receiving groove 1 is provided on the stop wheel disc opposite to the annular stop top 1. The annular stop top 1 extends into the annular receiving groove 1 and stops on the inner side wall of the annular receiving groove 1; A pressure plate is mounted on the second annular stop top, the pressure plate is provided with a second annular receiving groove opposite to the second annular stop top, the second annular stop top extends into the second annular receiving groove and stops on the inner side wall of the second annular receiving groove; A connecting locking mechanism is connected between the top-stop wheel disc and the pressure plate, and is used to lock the top-stop wheel disc and the pressure plate to be installed on the annular top-stopping end 1 and the annular top-stopping end 2.

2. The wheel assembly for a seeder according to claim 1, characterized in that: A plurality of seed dropping openings for passing seeds are circumferentially spaced apart on the support wheel surface; a seed storage cavity for storing seeds is defined between the support wheel ring, the top stop wheel disc and the pressure plate; and the seed dropping openings are communicated with the seed storage cavity.

3. The wheel assembly for a seeder according to claim 1, characterized in that: The connection locking mechanism comprises: A plurality of bolt rods are provided, a plurality of mounting through holes 1 are circumferentially spaced apart on the top stop wheel disc, and the plurality of mounting through holes 1 are arranged near the edge of the top stop wheel disc, a plurality of mounting through holes 2 are circumferentially spaced apart on the pressure plate opposite to the plurality of mounting through holes, and the plurality of mounting through holes 2 are arranged near the edge of the pressure plate, each of the bolt rods is installed in the mounting through hole 1 and the mounting through hole 2, and the threaded end of each bolt rod passes through the mounting through hole 1 and the mounting through hole 2 horizontally respectively; There are multiple locking nuts, and the threaded ends of the bolt rod passing through the first installation hole and the second installation hole are respectively threadedly connected with the locking nuts.

4. The wheel assembly for a seeder according to claim 3, characterized in that: The support wheel ring is provided with a plurality of avoidance through holes spaced circumferentially opposite to the plurality of mounting through holes, and each of the bolt rods passes through the avoidance through hole horizontally.

5. The wheel assembly for a seeder according to claim 1, characterized in that: The supporting wheel ring comprises: There are multiple wheel body units, each of which has an arc-shaped structure. Multiple wheel body units are connected end to end in the circumferential direction to form a circular wheel body. Each wheel body unit is provided with a seeding opening in the circumferential direction for passing seeds, and the seeding opening is connected to the inner side of the circular wheel body.

6. The wheel assembly for a seeder according to any one of claims 1 to 5, characterized in that: The first annular stop top and the second annular stop top are both in a circular ring shape, and the first annular receiving groove and the second annular receiving groove are both in a circular ring shape.

7. The wheel assembly for a seed drill according to claim 6, characterized in that: The circumferential inner side walls of the annular receiving groove 1 and the annular receiving groove 2 are both bevel structures, the annular receiving groove 1 and the annular receiving groove 2 respectively expand their openings outward, and the projections of the cross sections of the annular receiving groove 1 and the annular receiving groove 2 in the vertical direction are trapezoidal or isosceles trapezoidal; the annular stop top 1 extends into the annular receiving groove 1 and stops on the bevel structure of the annular receiving groove 1, and the annular stop top 2 extends into the annular receiving groove 2 and stops on the bevel structure of the annular receiving groove 2.

8. The wheel assembly for a seed drill according to claim 7, characterized in that: The inclination angle of the circumferential inner side walls of the annular receiving groove 1 and the annular receiving groove 2 relative to the horizontal plane is 5°-45°.

9. A rolling seeder, characterized in that: include: The wheel body assembly includes a supporting wheel ring, a stop wheel disc, a pressure plate and a connection locking mechanism, wherein the outer side wall of the supporting wheel ring in the circumferential direction forms a supporting wheel surface, the supporting wheel ring forms an annular stop top 1 at a first end in the lateral direction, and the supporting wheel ring forms an annular stop top 2 at a second end in the lateral direction, and the annular stop top 2 is arranged away from the annular stop top 1; The top-stop wheel disc is used to be installed on the annular top-stopping end 1, and an annular receiving groove 1 is provided on the top-stop wheel disc directly facing the annular top-stopping end 1, and the annular top-stopping end 1 extends into the annular receiving groove 1; The pressure plate is used to be installed on the second annular stop top, and the pressure plate is provided with a second annular receiving groove opposite to the second annular stop top, and the second annular stop top extends into the second annular receiving groove; The connecting locking mechanism is connected between the top-stop wheel disc and the pressure plate, and is used to lock the top-stop wheel disc and the pressure plate to be installed on the annular top-stopping end 1 and the annular top-stopping end 2; Also includes: Swing support frame; A support shaft, horizontally fixedly mounted on the swing support frame; A bearing assembly, fixedly mounted on the circumference of the support shaft; A mounting support sleeve is provided at the center of the side of the top-stop wheel disc facing the pressure plate, and the mounting support sleeve is installed on the peripheral side of the bearing assembly and can rotate relative to the support shaft. A shaft hole 1 is provided at the center of the top-stop wheel disc, and an opening is provided on the pressure plate facing the shaft hole 1. The support shaft is horizontally inserted into the shaft hole 1 and the opening, and the support wheel ring, the top-stop wheel disc and the pressure plate can rotate synchronously in the circumferential direction relative to the support shaft; A seed taking mechanism is mounted on the support wheel ring and is used for taking seeds; A seed hole sowing assembly, the seed hole sowing assembly is used for sowing, the seed hole sowing assembly includes a circular arc-shaped support plate and a hole sowing nozzle, the circular arc-shaped support plates are provided in plurality, the plurality of circular arc-shaped support plates are circumferentially spaced apart and installed on the outer side wall of the support wheel surface, and the two ends of the circular arc-shaped support plates respectively extend into and stop on the inner side walls of the annular receiving groove 1 and the annular receiving groove 2, the plurality of hole sowing nozzles are provided and circumferentially spaced apart and installed on the outer side wall of the circular arc-shaped support plate.

10. The rolling seeder according to claim 9, characterized in that: The circumferential inner side walls of the annular receiving groove 1 and the annular receiving groove 2 are both bevel structures, the annular receiving groove 1 and the annular receiving groove 2 respectively expand their openings outward, and the projections of the cross sections of the annular receiving groove 1 and the annular receiving groove 2 in the vertical direction are trapezoidal or isosceles trapezoidal; one end of the arc-shaped support plate extends into the annular receiving groove 1 and stops on the bevel structure of the annular receiving groove 1, and the other end of the arc-shaped support plate extends into the annular receiving groove 2 and stops on the bevel structure of the annular receiving groove 2.

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