Seed-metering device interval unblocking device and seed-metering device

Abstract

The utility model provides a seed-metering device interval unblocking device and a seed-metering device. A seed-metering device interval unblocking device comprises a base, a supporting arm, an unblocking wheel and a seed-metering disc, one end of the supporting arm is hinged to the base, the unblocking wheel is rotationally installed at the other end of the supporting arm, a plurality of unblocking teeth are arranged on the unblocking wheel and arranged in the circumferential direction of the unblocking wheel, a plurality of holes are formed in the seed-metering disc and arranged in the circumferential direction of the seed-metering disc, and the seed-metering disc is provided with a seed-metering groove. The distance between every two adjacent unblocking teeth is equal to the distance between every two mold holes which are spaced by at least one mold hole. The mode of interval hole cleaning is adopted, the abrasion degree of blockage cleaning gear teeth is reduced, and the service life is prolonged; the problem that holes cannot be thoroughly cleaned due to the fact that the density of the holes is high and the structure of a blockage cleaning wheel is limited is solved. The blockage is cleaned at an interval of at least one hole, and all the holes can be cleaned by rotating the seed-metering disc for at least two circles.

Description

Technical Field

[0001] The utility model relates to the technical field of seeding equipment, in particular to a seeding device interval clearing device and a seeding device. Background Art

[0002] Pneumatic seed meters (positive pressure / negative pressure) have good seeding performance and are gradually replacing mechanical seed meters to become the mainstream product in the market. The seed tray is one of the core components of the pneumatic seed meter. The smooth airflow of the holes on it is the key to ensuring the filling rate. When foreign objects or broken seeds are stuck in the holes, it will be difficult for the seed meter to fill the seeds stably. The clearing wheel is an important device to prevent the holes from being blocked. With the help of the uniform clearing teeth on its outer circumference, it engages with the holes. The clearing teeth enter the holes in turn to force the blockage out of the holes. This sequential clearing method causes serious wear of the clearing teeth and a short life. Similarly, for seed trays with a high density of holes, the length of the clearing teeth is limited, and the holes cannot be completely cleaned, otherwise they will not be able to engage normally. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a seeding device interval blockage clearing device and a seeding device in view of the deficiencies in the prior art.

[0004] The utility model provides a technical solution to the above-mentioned technical problem as follows: a seeding device comprising: a base, a support arm, a clearing wheel, and a seeding disc, one end of the support arm being hinged to the base, the clearing wheel being rotatably mounted on the other end of the support arm, the clearing wheel being provided with a plurality of clearing teeth, the plurality of clearing teeth being arranged along the circumference of the clearing wheel, the seeding disc being provided with a plurality of shaped holes, the plurality of shaped holes being arranged along the circumference of the seeding disc, the spacing between two adjacent clearing teeth being the same as the spacing between two shaped holes spaced at least one shaped hole apart.

[0005] The beneficial effects of the technical solution of the utility model are: the wear degree of the cleaning wheel teeth is reduced and the service life is increased by adopting the method of cleaning the mold holes at intervals; the problem that the mold holes cannot be cleaned thoroughly due to the limited structure of the cleaning wheel due to the high density of the mold holes is solved. Cleaning is performed at intervals of at least one mold hole, and all mold holes can be cleaned by rotating the seeding disc at least 2 circles.

[0006] Furthermore, a spring is connected to the middle of the support arm, and a free end of the spring is connected to the seed meter housing.

[0007] The beneficial effect of adopting the above further technical solution is that the spring can apply thrust to the support arm, causing the support arm to rotate around the axis, thereby inserting the clearing tooth into the mold hole.

[0008] Furthermore, a spring seat is provided in the middle of the support arm, the spring is installed on the spring seat, a wheel axle is provided at the other end of the support arm, a wheel axle hole is provided in the middle of the blockage clearing wheel, and the wheel axle hole is sleeved on the wheel axle.

[0009] The beneficial effect of adopting the above further technical solution is that the wheel axle can be inserted into the clearing wheel, the wheel axle hole is rotatably connected to the wheel axle, and the clearing wheel can rotate around the wheel axle. One end of the spring is fixed to the seed meter housing, and the other end is fixed to the spring seat; the spring can apply thrust to the support arm, so that the support arm rotates around the axis, and then the clearing tooth is inserted into the mold hole.

[0010] Furthermore, an axial hole is provided in the middle of the base, a shaft is provided in the axial hole, a hinge hole is provided at one end of the support arm, and the hinge hole is rotatably sleeved on the shaft.

[0011] The beneficial effect of adopting the above further technical solution is: an axial hole is provided in the middle of the base, and the shaft can be inserted into the axial hole; the shaft is used to hinge the support arm so that the support arm rotates around the shaft.

[0012] Furthermore, a plurality of mounting holes for connecting to a housing of a seed metering device are provided on the top of the base.

[0013] The beneficial effect of adopting the above further technical solution is that two mounting holes are provided on the top of the base for fastening connection with the seed metering device housing.

[0014] Furthermore, the clearing teeth are adapted to the molded holes.

[0015] The beneficial effect of adopting the above further technical solution is that the clearing teeth can be inserted into the mold holes of the seeding disc.

[0016] Furthermore, the seeding disc is installed in the seeding device, and the plurality of shaped holes are evenly distributed along the center of the seeding disc, and the plurality of clearing teeth are evenly distributed along the center of the clearing wheel.

[0017] The beneficial effect of adopting the above further technical solution is that the seeding disc is fixed in the seeding device, and when the seeding device is working, the seeding disc can rotate around its axis. The seeding disc is provided with shaped holes distributed in a circumference, and the shaped holes are evenly distributed along the center of the seeding disc. It is convenient to insert the clearing teeth into the shaped holes.

[0018] Furthermore, the number of interval holes is n, the total number of holes on the seeding disk is N, and N cannot be divided evenly by (n+1), and all holes can be cleared by rotating the seeding disk (n+1) times.

[0019] Furthermore, the base is a U-shaped structure, and one end of the support arm is rotatably installed in the U-shaped structure.

[0020] The beneficial effect of adopting the above further technical solution is that one end of the support arm is rotatably installed in the U-shaped structure, which can achieve stable support for the support arm while limiting the support arm to prevent the support arm from shaking and getting stuck.

[0021] In addition, the utility model also provides a seed metering device, comprising a seed metering device interval clearing device as described in any one of the above.

[0022] The beneficial effects of the technical solution of the utility model are: the wear degree of the cleaning wheel teeth is reduced and the service life is increased by adopting the method of cleaning the mold holes at intervals; the problem that the mold holes cannot be cleaned thoroughly due to the limited structure of the cleaning wheel due to the high density of the mold holes is solved. Cleaning is performed at intervals of at least one mold hole, and all mold holes can be cleaned by rotating the seeding disc at least 2 circles.

[0023] Advantages of additional aspects of the present invention will be partially given in the following description, and partially become apparent from the following description, or be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is one of the structural schematic diagrams of the seed meter interval blockage clearing device provided in an embodiment of the utility model.

[0025] Figure 2 The second structural schematic diagram of the seed meter interval clearing device provided in the embodiment of the utility model.

[0026] Figure 3 The third structural schematic diagram of the seed meter interval clearing device provided in the embodiment of the utility model.

[0027] Figure 4 A schematic structural diagram of a jam clearing wheel provided in an embodiment of the utility model.

[0028] Figure 5 A schematic structural diagram of a support arm provided in an embodiment of the utility model.

[0029] Explanation of the accompanying figures: 1. Base; 2. Shaft; 3. Support arm; 3.1. Hinge hole; 3.2. Spring seat; 3.3. Axle; 4. Clearing wheel; 4.1. Clearing tooth; 4.2. Axle hole; 5. Seeding disc; 5.1. Moulded hole; 6. Spring. DETAILED DESCRIPTION

[0030] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The embodiments given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0031] like Figures 1 to 5As shown, an embodiment of the utility model provides a seeding device interval blockage clearing device, comprising: a base 1, a support arm 3, a blockage clearing wheel 4, and a seeding disk 5, one end of the support arm 3 is hinged to the base 1, and the blockage clearing wheel 4 is rotatably mounted on the other end of the support arm 3, and the blockage clearing wheel 4 is provided with a plurality of blockage clearing teeth 4.1, and the plurality of blockage clearing teeth 4.1 are arranged along the circumference of the blockage clearing wheel 4, and the seeding disk 5 is provided with a plurality of shaped holes 5.1, and the plurality of shaped holes 5.1 are arranged along the circumference of the seeding disk 5, and the spacing between two adjacent blockage clearing teeth is the same as the spacing between two shaped holes separated by at least one shaped hole.

[0032] The beneficial effects of the technical solution of the utility model are: the wear degree of the cleaning wheel teeth is reduced and the service life is increased by adopting the method of cleaning the mold holes at intervals; the problem that the mold holes cannot be cleaned thoroughly due to the limited structure of the cleaning wheel due to the high density of the mold holes is solved. Cleaning is performed at intervals of at least one mold hole, and all mold holes can be cleaned by rotating the seeding disc at least 2 circles.

[0033] like Figures 1 to 5 As shown, further, a spring 6 is connected to the middle of the support arm 3, and a free end of the spring 6 is connected to the seed meter housing.

[0034] The beneficial effect of adopting the above further technical solution is that the spring can apply thrust to the support arm, causing the support arm to rotate around the axis, thereby inserting the clearing tooth into the mold hole.

[0035] like Figures 1 to 5 As shown, further, a spring seat 3.2 is provided in the middle of the support arm 3, the spring 6 is installed on the spring seat 3.2, a wheel axle 3.3 is provided at the other end of the support arm 3, and a wheel axle hole 4.2 is provided in the middle of the blockage clearing wheel 4, and the wheel axle hole 4.2 is sleeved on the wheel axle 3.3.

[0036] The beneficial effect of adopting the above further technical solution is that the wheel axle can be inserted into the clearing wheel, the wheel axle hole is rotatably connected to the wheel axle, and the clearing wheel can rotate around the wheel axle. One end of the spring is fixed to the seed meter housing, and the other end is fixed to the spring seat; the spring can apply thrust to the support arm, so that the support arm rotates around the axis, and then the clearing tooth is inserted into the mold hole.

[0037] like Figures 1 to 5 As shown, further, an axial hole is provided in the middle of the base 1, a shaft 2 is provided in the axial hole, a hinge hole 3.1 is provided at one end of the support arm 3, and the hinge hole 3.1 is rotatably sleeved on the shaft 2.

[0038] The beneficial effect of adopting the above further technical solution is: an axial hole is provided in the middle of the base, and the shaft can be inserted into the axial hole; the shaft is used to hinge the support arm so that the support arm rotates around the shaft.

[0039] like Figures 1 to 5As shown, further, the top of the base 1 is provided with a plurality of mounting holes for connecting with the seed metering device housing.

[0040] The beneficial effect of adopting the above further technical solution is that two mounting holes are provided on the top of the base for fastening connection with the seed metering device housing.

[0041] like Figures 1 to 5 As shown, further, the clearing tooth 4.1 is adapted to the mold hole 5.1.

[0042] The beneficial effect of adopting the above further technical solution is that the clearing teeth can be inserted into the mold holes of the seeding disc.

[0043] like Figures 1 to 5 As shown, further, the seed disc 5 is installed in the seeding device, and the plurality of shaped holes 5.1 are evenly distributed along the center of the seed disc 5, and the plurality of clearing teeth 4.1 are evenly distributed along the center of the clearing wheel 4.

[0044] The beneficial effect of adopting the above further technical solution is that the seeding disc is fixed in the seeding device, and when the seeding device is working, the seeding disc can rotate around its axis. The seeding disc is provided with shaped holes distributed in a circumference, and the shaped holes are evenly distributed along the center of the seeding disc. It is convenient to insert the clearing teeth into the shaped holes.

[0045] Furthermore, the number of interval holes is n, the total number of holes on the seeding disk is N, and N cannot be divided evenly by (n+1), and all holes can be cleared by rotating the seeding disk (n+1) times.

[0046] like Figures 1 to 5 As shown, further, the base 1 is a U-shaped structure, and one end of the support arm 3 is rotatably installed in the U-shaped structure.

[0047] The beneficial effect of adopting the above further technical solution is that one end of the support arm is rotatably installed in the U-shaped structure, which can achieve stable support for the support arm while limiting the support arm to prevent the support arm from shaking and getting stuck.

[0048] like Figures 1 to 5As shown, a seeding device interval clearing device provided by an embodiment of the utility model can be an interval clearing wheel working system, including a base 1, an axis 2, a support arm 3, a clearing wheel 4, a seeding disc 5 and a spring 6; the top of the base 1 is provided with two mounting holes for being fastened to the seeding device housing, and the middle is provided with an axial hole, into which the axis 2 can be inserted; the axis 2 is used to hinge the support arm 3 so that the support arm 3 rotates around the axis 2; the support arm 3 is provided with a hinge hole 3.1, a spring seat 3.2, and a wheel axle 3.3, and the wheel axle 3.3 can be inserted into the clearing wheel 4, and the clearing wheel 4 can rotate around the wheel axle 3.3; the clearing wheel 4 is provided with a clearing tooth 4.1 and an axle hole 4.2, wherein the axle hole 4.2 is rotatably connected to the axle 3.3, and the clearing tooth 4.1 can be inserted into the molded hole of the seeding disc 5. The seeding disc 5 is fixed in the seeding device. When the seeding device is working, the seeding disc 5 can rotate around its axis. The seeding disc 5 is provided with shaped holes 5.1 distributed in a circumference, and the shaped holes 5.1 are evenly distributed along the center of the seeding disc 5. Figure 1 The figure shows that the blockage is cleared at intervals of one hole. The total number of holes on the seeding disc is an odd number. The seeding disc can be rotated 2 times to clear all holes. Similarly, if the number of interval holes is n and the total number of holes on the seeding disc is N, it should be satisfied that N cannot be divided by (n+1). Under this condition, the seeding disc can be rotated (n+1) times to clear all holes. One end of the spring 6 is fixed to the housing of the seeding device, and the other end is fixed to the spring seat 3.2. The spring 6 can apply thrust to the support arm 3, so that the support arm 3 rotates around the axis 2, and then the clearing tooth 4.1 is inserted into the hole 5.1.

[0049] Working principle: When the seeding device is working, the seeding disc 5 rotates around its axis and applies torque to the clearing teeth 4.1 through the shaped holes 5.1 to drive the clearing wheel to rotate. If the shaped holes 5.1 are blocked by debris, the clearing teeth 4.1 push the debris out of the shaped holes under the action of the spring thrust to complete the clearing. Since the number of interval cleaning holes n and the total number of seeding disc shaped holes N satisfy [N cannot be divided by (n+1)], all the shaped holes can be cleared every (n+1) revolutions of the seeding disc.

[0050] (1) The method of cleaning the holes of the seed tray at intervals; (2) The relationship between the number of interval holes and the total number of holes on the seed tray: If the number of interval holes is n and the total number of holes on the seed tray is N, then N should not be divisible by (n+1).

[0051] Compared with the existing structure, it has the following beneficial effects:

[0052] (1) The interval cleaning hole method is adopted to reduce the wear degree of the cleaning wheel teeth and increase the service life.

[0053] (2) The problem that the mold holes cannot be thoroughly cleaned due to the high density of the mold holes and the limited structure of the cleaning wheel (cleaning teeth) is solved.

[0054] In addition, the utility model also provides a seed metering device, comprising a seed metering device interval clearing device as described in any one of the above.

[0055] The beneficial effects of the technical solution of the utility model are: the wear degree of the cleaning wheel teeth is reduced and the service life is increased by adopting the method of cleaning the mold holes at intervals; the problem that the mold holes cannot be cleaned thoroughly due to the limited structure of the cleaning wheel due to the high density of the mold holes is solved. Cleaning is performed at intervals of at least one mold hole, and all mold holes can be cleaned by rotating the seeding disc at least 2 circles.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A seed meter interval clearing device, characterized in that: include: A base, a support arm, a clearing wheel, and a seeding disk, wherein one end of the support arm is hinged to the base, and the clearing wheel is rotatably mounted on the other end of the support arm. The clearing wheel is provided with a plurality of clearing teeth, and the plurality of clearing teeth are arranged along the circumference of the clearing wheel. The seeding disk is provided with a plurality of shaped holes, and the plurality of shaped holes are arranged along the circumference of the seeding disk. The spacing between two adjacent clearing teeth is the same as the spacing between two shaped holes separated by at least one shaped hole.

2. A seed metering device according to claim 1, characterized in that: A spring is connected to the middle of the support arm, and a free end of the spring is connected to the seed metering device housing.

3. A seed metering device according to claim 2, characterized in that: A spring seat is provided in the middle of the support arm, and the spring is installed on the spring seat. A wheel axle is provided at the other end of the support arm. A wheel axle hole is provided in the middle of the blockage clearing wheel, and the wheel axle hole is sleeved on the wheel axle.

4. A seed metering device according to claim 1, characterized in that: An axial hole is arranged in the middle of the base, a shaft is arranged in the axial hole, a hinge hole is arranged at one end of the support arm, and the hinge hole is rotatably sleeved on the shaft.

5. A seed metering device according to claim 1, characterized in that: The top of the base is provided with a plurality of mounting holes for connecting with the shell of the seed metering device.

6. A seed metering device according to claim 1, characterized in that: The clearing teeth are adapted to the molded holes.

7. A seed metering device according to claim 1, characterized in that: The seeding disc is installed in the seeding device, and the plurality of shaped holes are evenly distributed along the center of the seeding disc, and the plurality of clearing teeth are evenly distributed along the center of the clearing wheel.

8. A seed metering device according to claim 1, characterized in that: The number of interval holes is n, the total number of holes on the seeding disk is N, and N cannot be divided evenly into n+1. The seeding disk can clear all the holes by rotating n+1 circles.

9. A seed metering device according to claim 1, characterized in that: The base is a U-shaped structure, and one end of the support arm is rotatably installed in the U-shaped structure.

10. A seed metering device, characterized in that: A seed metering device comprising the interval clearing device as described in any one of claims 1 to 9.

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