Seeding roller seed protection structure and seeder

Abstract

The utility model discloses a seeding roller seed protection structure and a seeding machine, and belongs to the technical field of agricultural instruments. The seed protection structure of the seeding roller is arranged on the side edge of the seeding roller, is used for blocking seeds and comprises a belt, a driving wheel and a driven wheel, the driving wheel and the driven wheel are connected through the belt, and the belt is tightly attached to the surface of the seeding roller; the driving wheel is connected with a power mechanism and used for driving the belt to rotate. The seeding machine is provided with a seed protection structure. According to the utility model, the belt originally driven by the seeding roller depending on friction force is changed into the belt driven by the seed protection structure, so that the belt and the seeding roller synchronously rotate, the friction between the belt and the seeding roller is reduced, the abrasion of the belt is reduced, and the belt can be used for a long time.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural implement technical field, specifically, relate to a kind of seeding roller seed protection structure and seeding machine. BACKGROUND

[0002] Rice, as the first grain crop in China, is widely planted in China. More than 65% of the population in China eat rice as their staple food, which proves that rice plays an extremely important role in China's grain production. With the increasing demand for rice, automatic seedling raising equipment is now widely used to plant rice.

[0003] With the continuous development of seeding technology, the advantages and disadvantages of seeding technology reflect the overall technical level of a country's agricultural mechanization, and the seeding machine is the core component of agricultural mechanization. Since the seeding roller of the seeding machine is cylindrical, the seeds fall into the groove of the seeding roller. During the rotation of the seeding roller, the seeds are prone to fall off. Therefore, a seed protection mechanism is usually provided on the side of the seeding roller to attach the belt to the seeding roller to prevent the seeds from falling off. However, due to the long-term friction between the belt and the seeding roller, the belt is severely worn and often needs to be replaced.

[0004] For example, Chinese patent document CN201142838Y discloses a synchronous flexible belt seed protector, which includes a seed protection belt that can be in close contact with the surface of the seed sowing roller and rotates with the seed sowing roller. The seed protection belt is wrapped around an axle roller assembly, which is installed on the frame of the seeding machine. The belt of the application is directly attached to the seeding roller and rotates with the rotation of the seeding roller. Long-term use can cause severe wear of the belt. SUMMARY

[0005] 1. Technical problem to be solved by the utility model

[0006] To solve the technical problems mentioned in the background art, the utility model provides a seeding roller seed protection structure and a seeding machine to reduce belt wear and thus reduce costs.

[0007] 2. Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the technical solution as follows:

[0009] The utility model provides a kind of seeding roller seed protection structure, is set in the side of seeding roller, for seed is blocked, including belt, driving wheel and driven wheel, the driving wheel and driven wheel are connected by belt, the belt is tightly attached to the surface of seeding roller;The driving wheel is connected with power mechanism, and the driving wheel is used to drive the belt to rotate.

[0010] As a further improvement of the utility model, the second tensioning structure is arranged on the belt, the second tensioning structure comprises a movable tensioning wheel, and the tensioning wheel is away from the seeding roller to tension the belt.

[0011] As a further improvement of the utility model, the tensioning wheel is connected with the movable rod, the movable rod is movably arranged on the fixed seat, and the fixed seat is fixed relative to the seeding roller.

[0012] The utility model also provides a seeding machine which comprises a seeding roller, the seeding roller is provided with the seed protection structure, the driving belt is driven to rotate by the driving wheel, and the driving wheel rotates synchronously with the seeding roller.

[0013] As a further improvement of the utility model, the first roller brush and the second roller brush are arranged on the seeding roller, the first roller brush and the second roller brush are arranged at the seed inlet and the seed outlet of the seeding roller respectively, the seeding roller is connected with the second roller brush through the fourth transmission chain.

[0014] As a further improvement of the utility model, the seeding roller is connected with the driving motor and the second roller brush through the first transmission chain.

[0015] As a further improvement of the utility model, the seeding roller is connected with the driving motor and the second roller brush through the first transmission chain.

[0016] As a further improvement of the utility model, the seeding roller is connected with the driving motor and the second roller brush through the first transmission chain.

[0017] As a further improvement of the utility model, the first tensioning structure is arranged on the second transmission chain.

[0018] As a further improvement of the utility model, the seed groove is arranged on the seeding roller.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the technical scheme has the following remarkable effects:

[0021] (1) In view of the problem that the belt on the seed protection structure is prone to wear, the seed protection structure of the utility model changes the belt driven by the friction force of the seeding roller into the belt driven by the seed protection structure, so that the belt rotates synchronously with the seeding roller, thereby reducing the friction between the belt and the seeding roller, reducing the wear of the belt, and prolonging the service life of the belt.

[0022] (2) The utility model provides a kind of sowing roller seed protection structure, set up tension structure on belt, seed is restricted in the seed groove on sowing roller using tension structure and is tightly attached to the surface of sowing roller, so that it can not fall in the sowing process.

[0023] (3) The utility model provides a kind of seeding machine, using the belt of active rotation as seed protection structure, reliably restricts the seed that needs sowing in the seed groove of sowing roller, belt and sowing roller synchronous and reverse rotation, so that there is no static friction between the two, thereby reducing the total amount of friction, reduce the wear of belt, so that belt can be used for a long time.

[0024] (4) The utility model provides a kind of seeding machine, sets up two roller brushes, respectively set in sowing roller's seed inlet and seed outlet, the roller brush for the seed that exceeds the seed groove bearing capacity is swept in the seed inlet, avoid seed accumulation on sowing roller. The roller brush for the seed that is swept after sowing on sowing roller is set in seed outlet. The setting of two roller brushes can guarantee that too many seeds do not accumulate on sowing roller and cause uneven sowing in seedling tray, and can also sweep the residual seeds in seed groove, to ensure that all seeds are sown into seedling tray.

[0025] (5) The utility model provides a kind of seeding machine, using transmission chain to connect sowing roller, active roller in seed protection structure and two roller brushes, using one drive motor to drive several structures movement simultaneously, save the installation of motor, and the synchronous movement of multiple structures can be easily realized, without adjusting multiple motors. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the schematic view of the seed protection structure and sowing roller installation structure of the utility model;

[0027] Figure 2 It is the schematic view of the seed protection structure and sowing roller installation structure from another perspective;

[0028] Figure 3 It is the side view of the seed protection structure and sowing roller installation;

[0029] Figure 4 It is the schematic view of the seed protection structure of the utility model.

[0030] Explanation of reference numerals in schematic view:

[0031] 1, sowing roller;2, drive motor;3, first roller brush;4, second roller brush;5, first tension structure;6, synchronous wheel;7, seed protection structure;71, belt;72, driving wheel;73, driven wheel;74, second tension structure;741, tension wheel;742, fixed seat;743, movable rod;

[0032] 100, first transmission chain; 200, second transmission chain; 300, third transmission chain; 400, fourth transmission chain. DETAILED DESCRIPTION

[0033] In order to make the above objectives, characteristics and advantages of the utility model more apparent, comprehensible, the specific embodiments of the utility model are described in detail below with the help of the drawings. In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0034] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0035] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0036] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0037] In the present utility model, unless otherwise expressly provided and limited, the first feature is "on" or "under" the second feature, which can be direct contact of the first and second features, or indirect contact of the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0038] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment.

[0039] Embodiment

[0040] In combination Figures 1-4 , the improved seed protection structure 7 of the present embodiment, in view of the problem that the existing seed protection structure 7 is easy to wear, changes the original belt 71 driven by the friction of the seeding roller 1 to provide power to drive the belt 71 by the seed protection structure 7 itself, so that the belt 71 rotates synchronously with the seeding roller 1, reduces the relative displacement, thereby reducing the friction between the belt 71 and the seeding roller 1, reducing the wear of the belt 71, so that the belt 71 can be used for a long time.

[0041] Specifically, in combination Figure 1 , the present embodiment of a seeding machine, comprising a seeding roller 1, the seeding roller 1 is arranged on the frame of the seeding machine, and is connected with the hopper on the frame for containing seeds through the material falling channel. During seeding, the seeds are first placed in the hopper, and then fall into the seeding roller 1 through the material falling channel. According to different types of seeding, different seed grooves are arranged on the seeding roller 1: for example, when precision seeding, strip-shaped seed grooves are arranged along the circumferential direction of the seeding roller 1, or on the basis of the strip-shaped seed grooves, the inside of each strip-shaped seed groove is separated into multiple square seed grooves by using a partition. When broadcasting, strip-shaped seed grooves are arranged along the axial direction of the seeding roller 1. After the seeds fall into the seed groove on the seeding roller 1 from the hopper, the seeds are transferred from the material falling channel position to the lower part of the seeding roller 1 with the rotation of the seeding roller 1. At this time, the seedling tray passes below the seeding roller 1, and the seeds fall into the seedling tray under the action of gravity, completing the seeding.

[0042] In combination Figure 4In the seeding machine, the hopper is generally arranged above the seeding machine to facilitate the placing of seeds, and during seeding, the seeds need to be moved from the upper part of the seeding roller 1 to the lower part of the seeding roller 1 along with the rotation of the seeding roller 1. During the rotation, the seeds will fall off the seeding roller 1 due to the action of gravity. Therefore, in order to prevent the seeds from falling off the seeding roller 1 and thus failing to be seeded in the seedling tray, a seed protection structure 7 is arranged at the side of the seeding roller 1. The seeds are restricted in the seed groove of the seeding roller 1 by the belt 71 in the seed protection structure 7 until the seeds reach the designated position and then fall. In the embodiment, the seed protection structure 7 includes the belt 71, a driving wheel 72 and a driven wheel 73. The driving wheel 72 and the driven wheel 73 are separately arranged, the belt 71 passes through the driving wheel 72 and the driven wheel 73, the driving wheel 72 and the driven wheel 73 stretch the belt 71 and support the rotation of the belt 71, and at the same time, the belt 71 is tightly attached to the surface of the seeding roller 1. Specifically, the driving wheel 72 is arranged at a position close to the material falling channel, and the driven wheel 73 is arranged at the seed dropping position of the seeding roller 1. Both the driving wheel 72 and the driven wheel 73 are tangentially arranged with the seeding roller 1. Since the seeding roller 1, the driving wheel 72 and the driven wheel 73 are all cylindrical, after being arranged in this way, the surfaces of the seeding roller 1, the driving wheel 72 and the driven wheel 73 are all in contact. When the belt 71 passes through the driving wheel 72 and the driven wheel 73, it will naturally adhere to the surface of the seeding roller 1. Therefore, the belt 71 can cooperate with the seed groove on the surface of the seeding roller 1 to restrict the seeds in the seed groove until the seeds drop at the seed dropping position. When the driving wheel 72 and the driven wheel 73 are tangentially arranged with the seeding roller 1, the seeds will not fall on the belt 71, reducing the damage to the seeds.

[0043] In the embodiment, in order to reduce the friction between the belt 71 and the surface of the seeding roller 1 and only have sliding friction between them to reduce static friction, the driving wheel 72 is connected with a power mechanism, and the driving wheel 72 is driven to rotate by the power mechanism, thereby driving the belt 71 to move. Further, the rotation speed of the driving wheel 72 is adjusted to be consistent with the rotation speed of the seeding roller 1, which can maximize the elimination of static friction and reduce the wear of the belt 71. The driving of the driving wheel 72 includes various ways, such as separately arranging a motor connected with the driving wheel 72, or connecting the driving wheel 72 with the motor driving the rotation of the seeding roller 1 through a transmission chain. In the embodiment, a motor is used to connect the seeding roller 1 and the driving wheel 72 through a transmission chain, so as to realize the synchronous rotation of the two, without the need for complex adjustment to realize the same rotation speed of the two, thereby ensuring the same rotation speed of the belt 71 and the seeding roller 1, reducing the friction between them and reducing the wear of the belt 71.

[0044] In order to avoid the belt 71 from slipping and the like, resulting in a speed difference between the belt 71 and the seeding roller 1, thereby reducing the effect of reducing friction, the second tensioning structure 74 is arranged on the belt 71 to tension the belt 71, which can ensure that the belt 71 can be tightly attached to the seeding roller 1, and ensure that the belt 71 does not slack and slip. Specifically, the second tensioning structure 74 is arranged between the driving wheel 72 and the driven wheel 73, and the belt 71 passes through the second tensioning structure 74. In the embodiment, the second tensioning structure 74 includes a movable tensioning wheel 741, which moves away from the seeding roller 1 to tension the belt 71. The tensioning wheel 741 is connected with a movable rod 743, which is movably mounted on a fixed seat 742, and the fixed seat 742 is fixed relative to the position of the seeding roller 1. The movable rod 743 is a screw rod, one end of which is fixedly mounted on the tensioning wheel 741, and the other end passes through the fixed seat 742 and is connected with the fixed seat 742 through a threaded structure. In the embodiment, the seeding roller 1, the driving wheel 72 and the driven wheel 73 are all fixedly mounted on the rack, and the fixed seat 742 is also mounted on the rack. When the movable rod 743 rotates, due to the threaded structure, the movable rod 743 can move relative to the fixed seat 742, thereby driving the tensioning wheel 741 to move towards or away from the seeding roller 1. When tensioning is required, the tensioning wheel 741 moves away from the seeding roller 1; when the belt 71 needs to be loosened, the tensioning wheel 741 moves towards the seeding roller 1.

[0045] In combination Figure 2 and Figure 3 Compared with the traditional planter which only provides one roller brush, the embodiment provides two roller brushes on the seeding roller 1, namely the first roller brush 3 and the second roller brush 4. The first roller brush 3 is arranged at the seed inlet of the seeding roller 1, i.e. the position where the seed channel is connected with the seeding roller 1. Since the seeds are dropped on the seeding roller 1 under the action of gravity, the seeds are prone to accumulate on the seeding roller 1. When the seeding roller 1 rotates, the excess seeds are prone to fall and cause waste, and the accumulated seeds can also cause uneven seeding in the seedling tray. The first roller brush 3 can sweep the accumulated seeds into other seed grooves of the seeding roller 1, thereby avoiding the accumulation of seeds. The second roller brush 4 is arranged at the seed outlet of the seeding roller 1, i.e. the position where the seeds fall into the seedling tray. The second roller brush 4 sweeps the seeds remaining in the seed groove and makes them all fall into the seedling tray, thereby reducing the waste of seeds.

[0046] In the embodiment, the specific connection structure is that the driving motor 2 is connected with the seeding roller 1 through the first transmission chain 100, two gears are arranged at one end of the rotating shaft of the seeding roller 1, one of which is connected with the first transmission chain 100, and the other is connected with the second transmission chain 200. The second transmission chain 200 is connected with the synchronous wheel 6 and the driving wheel 72, two gears are also arranged on the synchronous wheel 6, one of which is connected with the second transmission chain 200, and the other is connected with the third transmission chain 300. The third transmission chain 300 is connected with the first roller brush 3. One gear is arranged at the other end of the rotating shaft of the seeding roller 1, and the fourth transmission chain 400 is connected with the second roller brush 4. Thus, the synchronous rotation of the seeding roller 1, the first roller brush 3, the second roller brush 4 and the driving wheel 72 driven by the driving motor 2 through the transmission structure is realized. The first tensioning structure 5 is arranged on the second transmission chain 200 in the embodiment, which is used for tensioning and fixing the second transmission chain 200. Although the chain and gear structure is adopted for transmission in the embodiment, the transmission structure is not limited to the gear and chain, and other transmission modes such as transmission belt can also be used for transmission, and the corresponding gear structure can be replaced by a roller.

[0047] The above description of the utility model and its embodiments is illustrative, and is not restrictive. The embodiments shown in the drawings are only one of the embodiments of the utility model, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the above description, and designs a similar structure and embodiment without departing from the spirit of the utility model, the structure and embodiment should be within the protection scope of the utility model.

Claims

1. A seed protecting structure of a seeding roller, provided at a side edge of a seeding roller (1) for blocking seeds, characterized in that, Including belt (71), driving wheel (72) and driven wheel (73), the driving wheel (72) and driven wheel (73) are connected by belt (71), the belt (71) is close to the surface of the seed roller (1) setting;The driving wheel (72) is connected with power mechanism, the driving wheel (72) is used to drive the belt (71) to rotate.

2. The seed saving structure of claim 1, wherein, The second tensioning structure (74) is further provided on the belt (71), the second tensioning structure (74) includes movable tensioning wheel (741), the tensioning wheel (741) moves away from the seed roller (1) and tightens the belt (71).

3. The seed saving structure of claim 2, wherein, The tensioning wheel (741) is connected with the movable rod (743), the movable rod (743) is movably installed on the fixed seat (742), and the fixed seat (742) is fixed relative to the position of the seed roller (1).

4. A seeding machine comprising a seeding roller (1), characterized in that The seed roller (1) is provided with the seed protection structure according to any one of claims 1-3, the driving wheel (72) drives the belt (71) to rotate, and the driving wheel (72) rotates synchronously with the seed roller (1).

5. A planter according to claim 4, wherein, The first roller brush (3) and the second roller brush (4) are arranged on the seed roller (1), and the first roller brush (3) and the second roller brush (4) are arranged at the seed inlet and the seed outlet of the seed roller (1) respectively.

6. A planter according to claim 5, wherein, The seed roller (1) is connected with the driving motor (2) and the second roller brush (4) through the first transmission chain (100).

7. A planter according to claim 5 wherein, The seed roller (1) is connected with the driving wheel (72) through the second transmission chain (200).

8. A planter according to claim 5 wherein, The seed roller (1) is connected with the synchronous wheel (6) through the second transmission chain (200), the synchronous wheel (6) is connected with the first roller brush (3) through the third transmission chain (300), and the seed roller (1) is connected with the second roller brush (4) through the fourth transmission chain (400).

9. A seeding machine according to claim 7 or 8, characterised in that, The first tensioning structure (5) is arranged on the second transmission chain (200).

10. The planter of claim 5, wherein, The seed groove is arranged on the seed roller (1).

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