Seed metering device and agricultural machinery
By designing a seed metering device with detachable connection holes and replaceable roller cores, the problem of a fixed number of seed metering ports was solved, improving sowing efficiency and utilization, and reducing usage costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHA SUNLIGHT AGRI MACHINERY FACILITIES
- Filing Date
- 2025-04-01
- Publication Date
- 2026-04-24
AI Technical Summary
The existing seed metering device has a fixed number of seed outlets that cannot be increased or decreased, and the seed metering roller core is inconvenient to replace, resulting in low seeding efficiency and low utilization rate.
Design a seed metering device including a first seed meterer, a connecting shaft and a detachable connecting hole, allowing the number of seed meterers to be adjustable and the seed metering roller core to be replaceable, facilitating the sowing of different seeds.
It enables adjustable seed metering device quantity and replaceable roller core, improving sowing efficiency and utilization while reducing operating costs.
Smart Images
Figure CN224154667U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural machinery, and in particular to a seed metering device and agricultural machinery. Background Technology
[0002] In recent years, with the continuous advancement of agricultural modernization, agricultural machinery of various structures, such as seeders, has been increasingly widely used in agricultural production activities.
[0003] Seeders, including seed metering devices, typically have two or three seed outlets arranged side-by-side. Once the number of seed outlets on a seeder is determined, it usually cannot be increased or decreased. Therefore, this presents significant limitations in use, hindering the improvement of its utilization rate. Furthermore, the roller cores of currently used seed metering devices are usually not replaceable, or replacement is relatively cumbersome, resulting in low sowing efficiency when sowing different types of seeds.
[0004] In summary, how to provide a seed metering device with a simple structure, an adjustable number of seed metering ports, and convenient seed metering roller core replacement, as well as agricultural machinery including this seed metering device, has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a seed metering device with a simple structure, an adjustable number of seed metering ports, and convenient replacement of the seed metering roller core, as well as agricultural machinery including this seed metering device.
[0006] The solution of this utility model is implemented as follows: This utility model proposes a seed metering device, which includes a first seed meterer, a first connecting shaft, and a second seed meterer. The first seed meterer has a first connecting hole, and the second seed meterer has a second connecting hole. One end of the first connecting shaft is detachably disposed in the first connecting hole, and the other end of the second connecting shaft is detachably disposed in the second connecting hole. The first and second seed meterers each contain replaceable seed metering roller cores. With this structure, firstly, the first and second seed meterers can be installed or removed in real time as needed, i.e., their number can be adjusted. Furthermore, the seed metering roller cores of the first and second seed meterers can also be replaced in real time as needed, thus allowing for the sowing of different seeds. Compared with existing seed metering devices, it has the advantages of simple structure, adjustable number of seed meterers, and replaceable seed metering roller cores. During use, the number of seed meterers can be increased or decreased according to the width of the land, and it can be used to sow different seeds; therefore, its utilization rate is higher, and its operating cost is lower.
[0007] Another technical solution of this utility model is that, based on the above, the second seed meterer has the same structure as the first seed meterer, the seed metering device further includes a second connecting shaft, and a third seed meterer with the same structure as the first seed meterer. The third seed meterer is provided with a third connecting hole, one end of the second connecting shaft is placed in the second connecting hole, and the other end of the second connecting shaft is disposed in the third connecting hole.
[0008] Another technical solution of this utility model is that, based on the above, the first connecting shaft and the second connecting shaft are respectively provided with detachable retaining rings at both ends, and the retaining rings are sleeved on the ends of the first connecting shaft and the second connecting shaft.
[0009] Another technical solution of this utility model is that, based on the above, the two ends of the first connecting shaft and the second connecting shaft are respectively provided with detachable shaft clips, and the shaft clips are sleeved on the ends of the first connecting shaft and the second connecting shaft.
[0010] Another technical solution of this utility model is that, based on the above, one end of the first seed metering device is provided with a first seed inlet, and a first insert plate is provided on the first seed inlet. The first insert plate is used to control the amount of seeds entering the first seed metering device.
[0011] Another technical solution of this utility model is that, based on the above, the first seed meterer further includes an openable and closable first rear cover, after which the seed metering roller core can be taken out or put in.
[0012] Another technical solution of this utility model is that, based on the above, the seed metering roller core includes a first roller core, on which a plurality of seed receiving holes for storing seeds are arranged alternately.
[0013] Another technical solution of this utility model is that, based on the above, the first roller core is sleeved on the first connecting shaft, and when the first connecting shaft rotates, it drives the first roller core to rotate.
[0014] Another technical solution of this utility model is that, based on the above, the first seed metering device further includes a first seed metering port, which is disposed at the other end of the first seed metering device.
[0015] On the other hand, this utility model also proposes an agricultural machine, including a seed metering device, wherein the seed metering device is the seed metering device described in any of the above claims. Attached Figure Description
[0016] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.
[0017] Figure 1 This is a schematic diagram of the structure of a seed metering device according to the present invention;
[0018] Figure 2 for Figure 1 A schematic diagram of the assembly structure of the seeding device;
[0019] Figure 3 for Figure 1 A schematic diagram of the structure when the back cover is opened.
[0020] The correspondence between the reference numerals in the attached figures is as follows:
[0021] 1 First seed metering device 101 First connecting hole 102 First rear cover
[0022] 103 First roller core; 104 Second roller core; 105 First seed discharge port
[0023] 106 seed collection holes
[0024] 2. First connecting shaft 201 retaining ring 202 shaft clip
[0025] 203 Second connecting hole 204 Second rear cover
[0026] 3 Second seed meterer 301 Second seed metering port 302 Third connecting hole
[0027] 303 Third Rear Cover
[0028] 4 Second connecting shaft 5 Third seed meterer 501 Third seed metering port
[0029] 6 First seed inlet 7 First insert plate 8 Second seed inlet
[0030] 9 Second insert plate 10 Third seed inlet 11 Third insert plate Detailed Implementation
[0031] The present invention will now be described in detail with reference to the accompanying drawings. This description is merely illustrative and explanatory, and should not be construed as limiting the scope of protection of the present invention. Furthermore, those skilled in the art can combine the features of the embodiments in this document and in different embodiments accordingly based on the description herein.
[0032] The embodiments of this utility model are as follows, please refer to them. Figures 1 to 3The seed metering device shown is used in agricultural machinery and specifically includes a first seed meterer 1, a first connecting shaft 2, and a second seed meterer 3. The first seed meterer 1 has a first connecting hole 101, and the second seed meterer 3 has a second connecting hole 203. One end of the first connecting shaft 2 (the left end shown in the figure) is detachably disposed in the first connecting hole 101, and the other end of the second connecting shaft 2 (the right end shown in the figure) is detachably disposed in the second connecting hole 203. Furthermore, the first seed meterer 1 and the second seed meterer 3 are equipped with replaceable seed metering roller cores. With this seed metering device structure, firstly, the first seed meterer 1 and the second seed meterer 3 can be installed or removed in real time as needed, meaning their number can be adjusted. Furthermore, the seed metering roller cores of the first seed meterer 1 and the second seed meterer 3 can also be replaced in real time as needed, thus allowing for the sowing of different seeds. Compared with existing seed metering devices, it has the advantages of simple structure, adjustable number of seed meterers, and replaceable seed metering roller core. When in use, the number of seed meterers can be increased or decreased according to the width of the land, and it can be used to sow different seeds. Therefore, its utilization rate is higher and its operating cost is lower.
[0033] Based on the above embodiments, in another embodiment of the present invention, such as Figure 1 As shown, the second seed meterer 3 has the same structure as the first seed meterer 1. The seed metering device also includes a second connecting shaft 4 and a third seed meterer 5 with the same structure as the first seed meterer 1 and the second seed meterer 3. The third seed meterer 5 is provided with a third connecting hole 302. One end of the second connecting shaft 4, i.e. the left end shown in the figure, is placed in the second connecting hole 203, and the other end of the second connecting shaft 4, i.e. the right end shown in the figure, is set in the third connecting hole 302.
[0034] Based on the above embodiments, in another embodiment of the present invention, such as Figure 1 As shown, the left and right ends of the first connecting shaft 2 and the second connecting shaft 4 are respectively provided with detachable retaining rings 201. The retaining rings 201 are specifically fitted onto the ends of the first connecting shaft 2 and the second connecting shaft 4, thereby fixing the first seed meterer 1 and the second seed meterer 3.
[0035] Based on the above embodiments, in another embodiment of the present invention, such as Figure 2 and Figure 3 As shown, the left and right ends of the first connecting shaft 2 and the second connecting shaft 4 are respectively provided with detachable shaft clips 202. The shaft clips 202 are sleeved on the ends of the first connecting shaft 2 and the second connecting shaft 4, thereby fixing the first seed meterer 1 and the second seed meterer 3.
[0036] Based on the above embodiments, in another embodiment of the present invention, such as Figure 1As shown, one end of the first seed metering device 1, i.e. the upper end shown in the figure, is provided with a first seed inlet 6 for putting in seeds. The first seed inlet 6 is provided with a movable first insert plate 7, which is equivalent to a switch and is used to control the amount of seeds entering the first seed metering device 1.
[0037] Based on the above embodiments, in another embodiment of the present invention, such as Figures 1 to 3 As shown, the first seed meterer 1 also includes an openable and closable first rear cover 102. The upper or lower end of the first rear cover 102 is movably connected to the first seed meterer 1. After opening the first rear cover 102, the seed metering roller core can be taken out or put in for replacement of the seed metering roller core.
[0038] Based on the above embodiments, in another embodiment of the present invention, such as Figure 3 As shown, the seed metering roller core specifically includes a first roller core 103, on which a plurality of seed receiving holes 106 for receiving seeds are staggered.
[0039] Based on the above embodiments, in another embodiment of the present invention, such as Figure 3 As shown, the first roller core 103 is sleeved on the first connecting shaft 2. When the first connecting shaft 2 rotates, it drives the first roller core 103 to rotate, and the seeding is completed during the rotation process. In addition, the seeding roller core may also include a second roller core 104, which is different from the first roller core 103. The seeds discharged by the second roller core 104 are different from those of the first roller core 103.
[0040] Based on the above embodiments, in another embodiment of the present invention, such as Figures 1 to 3 As shown, the first seed metering device 1 also includes a first seed outlet 105, which is located at the other end of the first seed metering device 1, i.e., the lower end shown in the figure. Correspondingly, the lower end of the second seed metering device 3 is provided with a second seed outlet 301, and the lower end of the third seed metering device 5 is provided with a third seed outlet 501. In addition, the second seed metering device 3 is also provided with a second rear cover 204, above which is a second seed inlet 8 and a second insert plate 9 for controlling the seed inlet. The third seed metering device 51 is also provided with a third rear cover 303, above which is a third seed inlet 10 and a third insert plate 11 for controlling the seed inlet.
[0041] This seed metering device features a reversible number of seed meterers that can be installed or removed in real-time as needed; the number can be adjusted to any possible quantity. Furthermore, the seed metering roller core of each seed meterer can be replaced as needed to accommodate different seeds. Compared to existing seed metering devices, it offers advantages such as simple structure, adjustable seed meterer quantity, and replaceable seed metering roller cores. During use, the number of seed meterers can be increased or decreased according to the width of the land, and it can be used to sow different seeds, resulting in higher efficiency and lower production and operating costs.
[0042] Furthermore, this utility model proposes an agricultural machine including a seed metering device, wherein the seed metering device is as described in any of the preceding claims. Accordingly, this agricultural machine possesses the advantages of the aforementioned seed metering devices.
[0043] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A seed metering device, characterized in that, The seed metering device includes a first seed meterer, a first connecting shaft, and a second seed meterer. The first seed meterer has a first connecting hole, and the second seed meterer has a second connecting hole. One end of the first connecting shaft is detachably disposed in the first connecting hole, and the other end of the first connecting shaft is detachably disposed in the second connecting hole. The first seed meterer and the second seed meterer are equipped with replaceable seed metering roller cores.
2. The seed metering device according to claim 1, characterized in that, The second seed meterer has the same structure as the first seed meterer. The seed metering device also includes a second connecting shaft and a third seed meterer with the same structure as the first seed meterer. The third seed meterer has a third connecting hole. One end of the second connecting shaft is placed in the second connecting hole, and the other end of the second connecting shaft is placed in the third connecting hole.
3. The seed metering device according to claim 2, characterized in that, The first connecting shaft and the second connecting shaft are respectively provided with detachable retaining rings at both ends, and the retaining rings are sleeved on the ends of the first connecting shaft and the second connecting shaft.
4. The seed metering device according to claim 2, characterized in that, The first connecting shaft and the second connecting shaft are respectively provided with detachable shaft clips at both ends, and the shaft clips are sleeved on the ends of the first connecting shaft and the second connecting shaft.
5. The seed metering device according to claim 3 or 4, characterized in that, One end of the first seed metering device is provided with a first seed inlet, and a first insert plate is provided on the first seed inlet. The first insert plate is used to control the amount of seeds entering the first seed metering device.
6. The seed metering device according to claim 5, characterized in that, The first seed meterer also includes an openable and closable first rear cover, which allows the seed metering roller core to be removed or inserted after the first rear cover is opened.
7. The seed metering device according to claim 6, characterized in that, The seed metering roller core includes a first roller core, on which a plurality of seed receiving holes for collecting seeds are arranged alternately.
8. The seed metering device according to claim 7, characterized in that, The first roller core is sleeved on the first connecting shaft, and when the first connecting shaft rotates, it drives the first roller core to rotate.
9. The seed metering device according to claim 8, characterized in that, The first seed metering device further includes a first seed metering port, which is located at the other end of the first seed metering device.
10. An agricultural machine, comprising a seed metering device, characterized in that, The seed metering device is the seed metering device according to any one of claims 1 to 9.