Shaft core structure of seed-metering device

Abstract

The utility model discloses a central spindle structure of a seed-metering device. Comprising a mounting shell which comprises two mounting plates, and the two mounting plates are arranged in a spaced mode and form a mounting space; a mounting opening is formed in one side of the mounting space, and rotating holes are formed in the two mounting plates; the two connecting discs comprise disc bodies and centering protrusions, and the centering protrusions on the two disc bodies are rotationally installed in the rotating holes respectively; the seed metering roller core is detachably embedded between the two connecting discs and can rotate along with the two connecting discs, and a seed groove is formed in the peripheral wall of the seed metering roller core; the overall contours of the two connecting discs and the seed-metering roller core are smaller than the mounting opening, so that the seed-metering roller core can be embedded into the mounting space from the mounting opening. According to the utility model, the two connecting discs and the detachable seed-metering roller core are arranged, so that the seed-metering roller core is more convenient to mount and dismount, and the working efficiency is obviously improved; and when the seed-metering roller core is damaged or blocked, the seed-metering roller core can be quickly replaced without replacing the whole seed-metering device, so that the maintenance cost and time are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field, in particular, relate to a seed metering device axle core structure. BACKGROUND

[0002] In the field of agricultural seeding, seed metering device is a key component in seeding equipment, its main function is to evenly sow seeds into the soil according to the predetermined spacing and quantity. The traditional seed metering device axle core structure usually includes a fixed mounting shell and a seed metering roller core, and the seed metering roller core is usually more troublesome to disassemble and install. The size and shape of the seed groove of the seed metering roller core are fixed, and cannot be adjusted according to different seed types and seeding requirements, which limits the versatility and flexibility of the seed metering device. Secondly, once the seed metering roller core is damaged or the seed metering is stuck, the seed metering roller core is more troublesome to disassemble and replace, which increases the maintenance cost and time. SUMMARY

[0003] The utility model discloses at least one of the technical problems in the prior art. To this end, the utility model provides a seed metering device axle core structure.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A seed metering device axle core structure, comprising: a mounting shell, comprising two mounting plates, the two mounting plates are arranged at intervals and form a mounting space; one side of the mounting space is provided with a mounting opening, both the mounting plates are provided with rotating holes, and the rotating holes on the two mounting plates are coaxially arranged; two connecting discs, comprising a disc body and a centering protrusion, the centering protrusion protrudes from the center of the disc body, both the disc bodies are located in the mounting space, and the centering protrusions on both the disc bodies are rotatably installed in the rotating holes; a seed metering roller core, which can be detachably embedded between the two connecting discs and can rotate with the two connecting discs, and the outer peripheral wall is provided with a seed groove; the overall outline of both the connecting discs and the seed metering roller core is smaller than the mounting opening so as to be embedded into the mounting space from the mounting opening.

[0006] Further, the opposite sides of the two mounting plates are provided with protruding annular protrusions, the annular protrusions are provided with notches corresponding to the mounting opening, the opposite sides of the seed metering roller core are provided with positioning protrusions capable of penetrating the corresponding notches, and the positioning protrusions are used for abutting the inner wall of the annular protrusion to rotate along the inner wall of the annular protrusion.

[0007] Further, the opposite sides of the two disc bodies are provided with positioning grooves for embedding the positioning protrusions.

[0008] Further, one end of the centering protrusion away from the mounting space is fixedly connected with a transmission shaft.

[0009] Further, one end of the centering protrusion away from the disc body is provided with an embedding groove, and the transmission shaft is embedded in the embedding groove to transmit power.

[0010] Further, the cross-sectional profile of the transmission shaft and the embedding groove is a regular polygon.

[0011] Further, a sunken groove is arranged at the center of the end face of the transmission shaft away from the centering protrusion, and the groove bottom and the embedding groove bottom are provided with corresponding hole positions for fixing by screws.

[0012] Further, the side of the two mounting plates away from the rotating hole is provided with an extended positioning cylinder surrounding the edge of the rotating hole.

[0013] Further, the circumferential wall of the centering protrusion extending the positioning cylinder is provided with a clamping groove, and the clamping groove is embedded with a check ring.

[0014] Further, an adjusting pad is arranged between the check ring and the centering protrusion.

[0015] The utility model has the following beneficial effects:

[0016] The seed roller core can be disassembled and embedded between the two connecting discs, and can rotate with the two connecting discs, so as to realize rotary seeding; when disassembled, the seed roller core can be disassembled from the mounting opening, and the seed roller core is more simple to disassemble and assemble, and the rotating installation is realized by the centering protrusion and the rotating hole; by arranging the two connecting discs and the disassembled seed roller core, the installation and disassembly of the seed roller core are more convenient, and the working efficiency is significantly improved; different specifications of seed grooves of the seed roller core can be adjusted or replaced according to different seed types and seeding requirements, and the universality and flexibility of the seed sowing device are greatly improved; when the seed roller core is damaged or stuck, the seed roller core can be quickly replaced without replacing the whole seed sowing device, and the maintenance cost and time are reduced.

[0017] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. The utility model will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and the description thereof are used to explain the utility model, and do not constitute an improper limitation on the utility model. In the drawings:

[0019] Figure 1 It is the overall structure schematic view of the utility model embodiment;

[0020] Figure 2 It is the exploded state structure schematic view of Figure 1

[0021] Figure 3 It is the exploded state structure schematic view of part structure;

[0022] ​Figure 4 is a sectional view of the embodiment of the utility model;

[0023] Figure 5 is structural schematic view of the embodiment of the utility model is used with movable cover cooperation;

[0024] Figure 6 is sectional view when the embodiment of the utility model is connected with movable cover;

[0025] Figure 7 is structural schematic view when the embodiment of the utility model is connected in series;

[0026] Figure 8 is structural schematic view of a kind of roller core embodiment.

[0027] Legend:

[0028] Mounting shell 100, mounting plate 110, installation space 111, installation opening 112, rotating hole 113, extension positioning cylinder 114, annular protrusion 120, notch 121;

[0029] Connecting disc 200, disc body 210, positioning groove 211, centering protrusion 220, embedding groove 221, clamping groove 222, check ring 223, adjusting pad 230;

[0030] Seed roller core 300, seed groove 310, positioning protrusion 320;

[0031] Transmission shaft 400, sink groove 410;

[0032] Movable cover 500, arc-shaped baffle 510, baffle 520;

[0033] Series cylinder 600. DETAILED DESCRIPTION

[0034] It should be understood that the specific embodiments described herein are merely intended to explain the present application, and are not intended to limit the present application.

[0035] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0038] Please refer to Figure 1 and Figure 2 , the present application provides a preferred embodiment of a seed metering device shaft core structure, which comprises a mounting shell 100, a connecting disc 200 and a seed metering roller core 300.

[0039] The mounting shell 100 comprises two mounting plates 110, which are arranged at intervals and form a mounting space 111; one side of the mounting space 111 is provided with a mounting opening 112. It can be understood that the other side of the mounting space 111 is provided with a connecting plate to connect the two mounting plates 110 and close the side. As shown in Figure 5 , when assembled and used, the mounting shell 100 is hinged with a movable cover 500 on the side of the mounting opening 112 to realize the closing and opening of the mounting opening 112. When the seed metering roller core 300 needs to be installed or disassembled, the movable cover 500 can be opened, and when metering seeds, the movable cover 500 is closed.

[0040] Both of the two mounting plates 110 are provided with rotating holes 113, and the rotating holes 113 on the two mounting plates 110 are coaxially arranged.

[0041] The connecting disc 200 is provided with two; the connecting disc 200 comprises a disc body 210 and a centering protrusion 220, the centering protrusion 220 protrudes from the center of the disc body 210, both of the disc bodies 210 are located in the mounting space 111, and the centering protrusions 220 on both of the disc bodies 210 are rotatably installed in the rotating holes 113 on the two sides. That is, the centering protrusion 220 on the left disc body 210 protrudes to the left and is rotatably installed in the rotating hole 113 on the left mounting plate 110, and the centering protrusion 220 on the right disc body 210 protrudes to the right and is rotatably installed in the rotating hole 113 on the right mounting plate 110.

[0042] The seed sowing roller core 300 is detachably embedded between the two connecting plates 200, and can rotate with the two connecting plates 200. The outer peripheral wall of the seed sowing roller core 300 is provided with seed grooves 310 for embedding seeds. The seeds rotate with the seed sowing roller core 300 and finally fall off due to their own gravity, and are discharged from the seed discharge port at the bottom of the installation space 111. It can be understood that the movable cover 500 is provided with a baffle 520. When the installation opening 112 is closed, the baffle 520 blocks the seeds from directly falling off from the side of the seed sowing roller core 300, so that the seeds can only rotate to the other side of the seed sowing roller core 300 before falling out of the seed grooves 310.

[0043] The overall profiles of the two connecting plates 200 and the seed sowing roller core 300 are smaller than the installation opening 112, so that they can be embedded into the installation space 111 from the installation opening 112. During installation, the two connecting plates 200 are sequentially inserted into the installation space 111 from the installation opening 112, and the centering protrusions 220 are embedded into the rotating holes 113. Then, the seed sowing roller core 300 is inserted into the installation space 111 from the installation opening 112 and embedded between the two connecting plates 200. The reverse operation can be performed during disassembly. The installation and disassembly do not require disassembly of the installation shell 100, and the disassembly is simple and convenient.

[0044] In one preferred embodiment of the seed sowing device shaft core structure provided by the utility model, the seed sowing roller core 300 is detachably embedded between the two connecting plates 200 and can rotate with the two connecting plates 200, thereby realizing rotary seed sowing. During disassembly, the seed sowing roller core 300 can be disassembled from the installation opening 112. The seed sowing roller core 300 is more simple to disassemble and install, and is rotatably installed by the centering protrusions 220 and the rotating holes 113. The installation and disassembly of the seed sowing roller core 300 are more convenient, and the working efficiency is significantly improved. The seed sowing roller core 300 with different specifications of seed grooves 310 can be adjusted or replaced according to different seed types and sowing requirements, thereby greatly improving the universality and flexibility of the seed sowing device. The roller core can be quickly replaced to realize sowing of different crops, thereby meeting the sowing requirements of various crops. Figure 2 As shown in FIG. 6, the seed sowing roller core 300 is used for sowing rape seeds. Figure 8 As shown in FIG. 7, the seed sowing roller core 300 is used for sowing corn seeds. Of course, sowing of other crops, such as sorghum, wheat, soybean, etc., can also be realized according to requirements. When the seed sowing roller core 300 is damaged or stuck, the seed sowing roller core 300 can be quickly replaced without replacing the entire seed sowing device, thereby reducing the maintenance cost and time.

[0045] Referring to Figure 2 and Figure 3In some embodiments of the utility model, the opposite side of two installation plates 110 is equipped with a protruding annular protrusion 120, the annular protrusion 120 is equipped with a gap 121 at the corresponding installation opening 112, the two sides of the seed roller core 300 are equipped with a positioning protrusion 320 capable of passing through the corresponding gap 121, the positioning protrusion 320 is used to be attached with the inner wall of the annular protrusion 120 to be able to rotate along the inner wall of the annular protrusion 120, in order to make the seed roller core 300 cooperate with the annular protrusion 120 stably, make the seed roller core 300 rotate balance, the positioning protrusion 320 is uniformly surrounded and arranged with multiple, thereby guaranteeing that there is always a positioning protrusion 320 attached with the inner wall of the annular protrusion 120, guaranteeing radial positioning.It can be understood that the inner wall of the annular protrusion 120 is a cylindrical surface, and the positioning protrusion 320 is a corresponding matching arc-shaped strip, thereby realizing rotational positioning.It can be understood that the thickness of the seed roller core 300 at the position of the positioning protrusion 320 is less than the interval of the annular protrusion 120 on both sides, so that when installing, the seed roller core 300 can pass through between the annular protrusion 120 on both sides.It can be understood that, as shown in Figure 5 and Figure 6 the inner side of the movable cover 500 is equipped with an arc-shaped blocking strip 510, so that when closing, the arc-shaped blocking strip 510 is embedded in the gap 121, so as to realize complete limiting of the positioning protrusion 320, and avoid shaking of the positioning protrusion 320 in the gap 121.

[0046] Referring to Figures 1 to 3 in further embodiments of the utility model, the opposite side of two disc bodies 210 is equipped with a positioning groove 211 for embedding the positioning protrusion 320, so that the positioning protrusion 320 is embedded in the positioning groove 211 to realize torque transmission of the disc body 210 and the seed roller core 300, so that the seed roller core 300 can rotate synchronously with the disc body 210.In addition, it can be understood that in the installed state, the disc body 210 is embedded in the groove formed by the annular protrusion 120, so as to reduce the interference of the disc body 210 that has been installed in place on the installation of the other disc body 210.It can be understood that the axial dimension of the overall connecting disc 200 (the disc body 210 and the centering protrusion 220) is less than the interval of the annular protrusion 120 on both sides, so that when installing, it can pass through the interval between the annular protrusion 120 on both sides, and installation is realized.

[0047] In some embodiments of the utility model, the end of the centering protrusion 220 away from the installation space 111 is fixedly connected with a transmission shaft 400, so as to facilitate the input of external power, and of course, it is also convenient for the series connection of multiple seeders.

[0048] Referring to Figure 2 in further embodiments of the utility model, the end of the centering protrusion 220 away from the disc body 210 is equipped with an embedding groove 221, and the transmission shaft 400 is embedded in the embedding groove 221 to transmit power, so as to realize positioning and installation of the transmission shaft 400 and the connecting disc 200.

[0049] Referring to Figure 2 In further embodiments of the present application, the cross-sectional profile of the transmission shaft 400 and the embedding groove 221 is a regular polygon, so that power transmission can be directly achieved, without the need for additional torque transmission through connecting keys, and installation is more convenient.

[0050] Referring to Figure 2 and Figure 4 In further embodiments of the present application, a sunken groove 410 is provided on the end face of the transmission shaft 400 away from the center of the centering protrusion 220, and the groove bottom of the sunken groove 410 and the groove bottom of the embedding groove 221 are provided with corresponding hole positions for connection and fixation by screws, the sunken groove 410 can hide the screws, and facilitate subsequent structural interference when the transmission shaft 400 is connected in series. As shown in Figure 7 When two seeders are connected in series, a series cylinder 600 can be connected on the transmission shaft 400 on the opposite side of the two seeders, and the series cylinder 600 is provided with a central hole for the transmission shaft 400 to fit into, so as to achieve torque transmission.

[0051] Referring to Figure 2 In further embodiments of the present application, the back side of the two mounting plates 110 is provided with an extended positioning cylinder 114 surrounding the edge of the rotating hole 113, so that there is enough length to position and cooperate with the centering protrusion 220, and the rotation of the centering protrusion 220 is more stable.

[0052] Referring to Figure 2 In further embodiments of the present application, the circumferential wall of the centering protrusion 220 protruding from the extended positioning cylinder 114 is provided with a clamping groove 222, and the clamping groove 222 is embedded with a retaining ring 223, so as to axially limit the centering protrusion 220 and achieve axial positioning of the connecting disc 200.

[0053] Referring to Figure 2 and Figure 4 In further embodiments of the present application, an adjusting pad 230 is clamped between the retaining ring 223 and the centering protrusion 220, so as to eliminate the installation gap, and the adjusting pad 230 of the corresponding thickness can be selected according to the actual installation gap.

[0054] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A seed metering device shaft core structure, characterized in that, The utility model relates to a seed metering device, including: The mounting shell (100) includes two mounting plates (110), and the two mounting plates (110) are spaced apart and formed with a mounting space (111); one side of the mounting space (111) is provided with a mounting opening (112), and the two mounting plates (110) are each provided with a rotating hole (113), and the rotating holes (113) on the two mounting plates (110) are coaxially arranged; Two connecting plates (200) include a disc body (210) and a centering protrusion (220), the centering protrusion (220) protrudes from the center of the disc body (210), the two disc bodies (210) are located in the mounting space (111), and the centering protrusions (220) on the two disc bodies (210) are rotatably mounted in the rotating holes (113) on the two sides, respectively; A seed metering roller core (300) is detachably embedded between the two connecting plates (200) and can rotate with the two connecting plates (200), and an outer peripheral wall is provided with a seed groove (310); The overall profiles of the two connecting plates (200) and the seed metering roller core (300) are all smaller than the mounting opening (112) so as to be embedded into the mounting space (111) from the mounting opening (112).

2. The seed meter shaft core structure of claim 1, wherein, The opposite sides of the two mounting plates (110) are provided with protruding annular protrusions (120), the annular protrusions (120) are provided with notches (121) corresponding to the mounting openings (112), the two sides of the seed metering roller core (300) are provided with positioning protrusions (320) capable of penetrating through the corresponding notches (121), and the positioning protrusions (320) are used for abutting the inner walls of the annular protrusions (120) so as to rotate along the inner walls of the annular protrusions (120).

3. The seed meter shaft core structure of claim 2, wherein, The opposite sides of the two disc bodies (210) are provided with positioning grooves (211) for embedding the positioning protrusions (320).

4. The seed meter shaft core structure of claim 1, wherein, One end of the centering protrusion (220) away from the mounting space (111) is fixedly connected with a transmission shaft (400).

5. The seed meter shaft core structure of claim 4, wherein, One end of the centering protrusion (220) away from the disc body (210) is provided with an embedding groove (221), and the transmission shaft (400) is embedded into the embedding groove (221) to transmit power.

6. The seed meter shaft core structure of claim 5, wherein, The cross-sectional profiles of the transmission shaft (400) and the embedding groove (221) are regular polygons.

7. The seed meter shaft core structure of claim 5, wherein, The center of the end face of the transmission shaft (400) away from the centering protrusion (220) is provided with a sunken groove (410), and the sunken groove (410) and the embedding groove (221) are provided with corresponding hole positions at the groove bottoms to be fixed by screws.

8. The seed meter shaft core structure of claim 1, wherein, The sides of the two mounting plates (110) away from the sides are provided with extension positioning cylinders (114) surrounding the edges of the rotating holes (113).

9. The seed meter shaft core structure of claim 8, wherein, The peripheral wall of the centering protrusion (220) protruding from the extension positioning cylinder (114) is provided with a clamping groove (222), and the clamping groove (222) is embedded with a check ring (223).

10. The seed meter shaft core structure of claim 9, wherein, The check ring (223) and the centering protrusion (220) are clamped with an adjusting pad (230) in front.

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