Finger clamping seed sowing device

Abstract

The utility model relates to the technical field of seed-metering devices, in particular to a clamping seed-metering device, which comprises a seed-metering device shell, a cam, a blocking pipe, a clamping plate, a clamping plate and a clamping plate, the blocking pipe is fixedly connected to the front inner wall of the seed-metering device shell so as to realize that a gap is reserved between the cam and the seed-metering device shell; according to the scheme, the distance between the metal clamping jaw and the seed metering device shell is adjusted through cooperation of the cam and the sliding plate, so that clamping and releasing of seeds are achieved, seed clamping and seed metering are further achieved, the clamping effect of the device on the seeds is stable, the seed metering efficiency can be adjusted by adjusting the rotating speed of the rotating shaft, and the seed metering device is convenient to use. And the discharge speed of two adjacent seeds can be adjusted by adjusting the number of the rotating rods, so that single seeds can be continuously and efficiently discharged in the same short distance.

Description

Technical Field

[0001] The utility model relates to the technical field of seed metering devices, in particular to a finger clip seed metering device. Background Technique

[0002] A seed metering device is a mechanical device for automatic sowing. While the seeding machine is moving, seeds are discharged from the discharge port and then automatically buried by filling soil, thus realizing automatic sowing. Compared with traditional manual sowing, it has higher efficiency and better sowing effect, so it is widely promoted.

[0003] There are various existing seed metering devices. The common seed metering devices on the market often have slow seed metering efficiency and poor effect of clamping seeds during the seed metering process. Therefore, it is difficult to achieve continuous and efficient discharge of single seeds at the same short distance. For this reason, we propose a finger clip seed metering device. Content of the Utility Model

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art and propose a finger clip seed metering device.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a finger clip seed metering device, including a seed metering device housing. A seed metering port for discharging seeds is opened on the front end face of the seed metering device housing. A seed storage baffle is fixedly connected to the rear end face of the seed metering device housing. It further includes:

[0006] A cam. A blocking pipe is fixedly connected to the inner wall of the cam. The blocking pipe is fixedly connected to the front inner wall of the seed metering device housing to leave a gap between the cam and the seed metering device housing. One end face of the cam close to the seed metering device housing is composed of two uneven planes, and the connection parts of the two planes are all transitioned by inclined planes;

[0007] A bowl-shaped shell. The bowl-shaped shell is arranged on the side of the cam away from the seed metering device housing. A rotating shaft and an annular shell are fixedly connected to one end face of the bowl-shaped shell close to the cam. The rotating shaft is rotatably connected in the blocking pipe of the cam and the seed metering device housing. A plurality of evenly distributed clamping grooves are opened on one end faces of the bowl-shaped shell and the annular shell close to the seed metering device housing;

[0008] A plurality of rotating rods. The plurality of rotating rods are respectively rotatably clamped in the plurality of clamping grooves. One ends of the plurality of rotating rods away from each other are all fixedly connected with arc-shaped metal clamping claws for clamping seeds;

[0009] A plurality of torsion springs. The plurality of torsion springs are respectively fixedly connected between adjacent two rotating rods to provide torsion for each cam;

[0010] Multiple sliding plates, and multiple said sliding plates are respectively fixedly connected to the adjacent end faces of multiple rotating rods. Multiple said sliding plates are all slidably connected to one end face of the cam close to the seed metering device housing. Multiple said sliding plates and the cam are slidably matched to respectively control the clamping and releasing of seeds by multiple metal grippers.

[0011] Preferably, a transition groove is formed in the inner wall of the seed metering device housing close to the cam, and the transition groove is communicated with the seed discharging port to realize the sliding seed pushing of multiple metal grippers.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In this solution, the distance between the metal gripper and the seed metering device housing is adjusted by the cooperation of the cam and the sliding plate, so as to realize the clamping and releasing of seeds, and further realize the seed clamping and seed discharging. The clamping effect of the device on seeds is stable. The seed discharging efficiency can be adjusted by adjusting the rotation speed of the rotating shaft, and the discharging speed of adjacent two seeds can also be adjusted by adjusting the number of rotating rods, so that single seeds can be continuously and efficiently discharged at the same short distance. Description of the Drawings

[0014] Figure 1 is a three-dimensional view of the utility model;

[0015] Figure 2 is a three-dimensional exploded view of the utility model;

[0016] Figure 3 is a three-dimensional view of the torsion spring part of the utility model;

[0017] Figure 4 is a three-dimensional view of the annular shell part of the utility model;

[0018] Figure 5 is a three-dimensional view of the cam part of the utility model;

[0019] Figure 6 is a three-dimensional view of the transition groove part of the utility model.

[0020] In the figure: 1. Seed metering device housing; 101. Transition groove; 102. Seed discharging port; 2. Seed storage baffle; 3. Bowl-shaped shell; 301. Card slot; 302. Annular shell; 4. Rotating shaft; 5. Cam; 6. Rotating rod; 601. Metal gripper; 602. Sliding plate; 603. Torsion spring. Detailed Embodiment

[0021] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and other obvious variations can be thought of by those skilled in the art.

[0022] Such as Figures 1-6The shown finger clip metering device includes a metering device housing 1. A metering port 102 for metering seeds is drilled on the front end face of the metering device housing 1. A seed storage baffle 2 is fixedly connected to the rear end face of the metering device housing 1. It further includes:

[0023] A cam 5. A blocking tube is fixedly connected to the inner wall of the cam 5. The blocking tube is fixedly connected to the front inner wall of the metering device housing 1 so that there is a gap between the cam 5 and the metering device housing 1. One end face of the cam 5 close to the metering device housing 1 is composed of two uneven planes, and the joints of the two planes are all transitioned by inclined planes;

[0024] A bowl-shaped shell 3. The bowl-shaped shell 3 is arranged on the side of the cam 5 away from the metering device housing 1. A rotating shaft 4 and an annular shell 302 are fixedly connected to one end face of the bowl-shaped shell 3 close to the cam 5. The rotating shaft 4 is rotatably connected in the blocking tube of the cam 5 and the metering device housing 1. A plurality of evenly distributed card slots 301 are drilled on one end faces of the bowl-shaped shell 3 and the annular shell 302 close to the metering device housing 1;

[0025] A plurality of rotating rods 6. The plurality of rotating rods 6 are respectively rotatably clamped in the plurality of card slots 301. Arc-shaped metal clamping claws 601 for clamping seeds are fixedly connected to the ends of the plurality of rotating rods 6 away from each other;

[0026] A plurality of torsion springs 603. The plurality of torsion springs 603 are respectively fixedly connected between adjacent two rotating rods 6 to provide torsion for each cam 5;

[0027] A plurality of sliding plates 602. The plurality of sliding plates 602 are respectively fixedly connected to one end faces of the plurality of rotating rods 6 close to each other. The plurality of sliding plates 602 are all slidably connected to one end face of the cam 5 close to the metering device housing 1. The plurality of sliding plates 602 and the cam 5 are in sliding cooperation to respectively control the clamping and releasing of seeds by the plurality of metal clamping claws 601.

[0028] During operation, when this device is needed for metering seeds, the output end of the driving motor is connected to the rotating shaft 4 to drive the rotating shaft 4 to rotate. The rotation of the rotating shaft 4 drives the bowl-shaped shell 3 and the annular shell 302 to rotate. The rotation of the annular shell 302 and the bowl-shaped shell 3 drives the rotating rods 6 to... Figure 2Rotate counterclockwise at an angle. The rotating rod 6 rotates to drive the sliding plate 602 to slide on one end face of the cam 5 close to the seed metering device housing 1. Since one end face of the cam 5 close to the seed metering device housing 1 is composed of two uneven planes, the rotating rod 6 rotates and twists in the card slot 301 under the torsion of multiple torsion springs 603, thereby changing the angle of the metal clamping jaw 601, and then realizing the clamping and releasing of seeds by the metal clamping jaw 601. Pour seeds between the seed storage baffle 2 and the bowl-shaped shell 3. The seeds remain between the seed metering device housing 1 and the seed storage baffle 2. When the torsion spring 603 slides to the convex surface of the cam 5, the gap between the metal clamping jaw 601 and the seed metering device housing 1 becomes larger, so that it is convenient for seeds to enter between the metal clamping jaw 601 and the seed metering device housing 1. As the rotating rod 6 rotates to make the sliding plate 602 slide to the concave surface of the cam 5, the seeds are clamped and fixed by the metal clamping jaw 601 and the seed metering device housing 1 under the torsion of the torsion spring 603. The seeds slide on the inner wall of the seed metering device housing 1, so as to realize clamping the seeds between the metal clamping jaw 601 and the seed metering device housing 1. When the metal clamping jaw 601 and the clamped seeds move to the seed discharging port 102, since the seeds are no longer blocked by the seed metering device housing 1, the seeds are thrown out under the torsion of the torsion spring 603, and then seed metering is realized;

[0029] In this solution, the cooperation of the cam 5 and the sliding plate 602 is adopted to adjust the distance between the metal clamping jaw 601 and the seed metering device housing 1, so as to realize the clamping and releasing of seeds, and then realize seed clamping and seed metering. The clamping effect of this device on seeds is stable. The seed metering efficiency can be adjusted by adjusting the rotation speed of the rotating shaft 4, and the discharging speed of adjacent two seeds can also be adjusted by adjusting the number of the rotating rods 6, so that single seeds can be continuously and efficiently discharged at the same short distance.

[0030] Specifically, a transition groove 101 is cut in the inner wall of the seed metering device housing 1 close to the cam 5. The transition groove 101 is communicated with the seed discharging port 102 to realize the sliding and seed pushing of multiple metal clamping jaws 601.

[0031] During operation, by setting the transition groove 101, it is convenient for the metal clamping jaw 601 to release part of the torsion and clamping force before reaching the seed discharging port 102, which is beneficial to avoiding the seeds being thrown out too fast and hitting and rebounding, and then facilitating the discharging of seeds.

[0032] The working principle of the present utility model:

[0033] When it is necessary to use this device for seed metering, connect the output end of the driving motor to the rotating shaft 4 to drive the rotating shaft 4 to rotate. The rotating shaft 4 rotates to drive the bowl-shaped shell 3 and the annular shell 302 to rotate. The rotation of the annular shell 302 and the bowl-shaped shell 3 drives the rotating rod 6 to rotate according to the attached description of the specification Figure 2Rotate counterclockwise at an angle. The rotating rod 6 rotates to drive the sliding plate 602 to slide on the end face of the cam 5 close to the seed metering device housing 1. Since the end face of the cam 5 close to the seed metering device housing 1 is composed of two uneven planes, the rotating rod 6 rotates and twists in the card slot 301 under the torsion of multiple torsion springs 603, thereby changing the angle of the metal clamping jaw 601, and then realizing the clamping and releasing of seeds by the metal clamping jaw 601. Pour seeds between the seed storage baffle 2 and the bowl-shaped shell 3. The seeds are retained between the seed metering device housing 1 and the seed storage baffle 2. When the torsion spring 603 slides to the convex surface of the cam 5, the gap between the metal clamping jaw 601 and the seed metering device housing 1 becomes larger, so as to facilitate the seeds to enter between the metal clamping jaw 601 and the seed metering device housing 1. As the rotating rod 6 rotates to make the sliding plate 602 slide to the concave surface of the cam 5, the seeds are clamped and fixed by the metal clamping jaw 601 and the seed metering device housing 1 under the torsion of the torsion spring 603. The seeds slide on the inner wall of the seed metering device housing 1, so as to realize clamping the seeds between the metal clamping jaw 601 and the seed metering device housing 1. When the metal clamping jaw 601 and the clamped seeds move to the seed discharging port 102, since the seeds are no longer blocked by the seed metering device housing 1, the seeds are thrown out under the torsion of the torsion spring 603, and then the seed metering is realized.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A finger-clamp seed meter, comprising a seed meter housing (1), characterized in that: The front end surface of the seed meter housing (1) is provided with a seed metering opening (102) for metering seeds, and the rear end surface of the seed meter housing (1) is fixedly connected with a seed storage baffle (2), and further comprises: A cam (5), the inner wall of the cam (5) being fixedly connected to a barrier tube, the barrier tube being fixedly connected to the front inner wall of the seed metering device housing (1) so as to leave a gap between the cam (5) and the seed metering device housing (1), the end surface of the cam (5) close to the seed metering device housing (1) being composed of two uneven planes, and the connection between the two planes being transitioned by an inclined surface; A bowl-shaped shell (3), the bowl-shaped shell (3) being arranged on a side of the cam (5) away from the seed meter housing (1), the end surface of the bowl-shaped shell (3) close to the cam (5) being fixedly connected to a rotating shaft (4) and an annular shell (302), the rotating shaft (4) being rotatably connected to the barrier tube of the cam (5) and the seed meter housing (1), and the end surfaces of the bowl-shaped shell (3) and the annular shell (302) close to the seed meter housing (1) being both provided with a plurality of evenly distributed slots (301); A plurality of rotating rods (6), wherein the plurality of rotating rods (6) are respectively rotatably engaged in the plurality of engaging grooves (301), and the ends of the plurality of rotating rods (6) that are away from each other are all fixedly connected with arc-shaped metal clamping claws (601) for clamping seeds; a plurality of torsion springs (603), wherein the plurality of torsion springs (603) are respectively fixedly connected between two adjacent rotating rods (6) so as to provide a torsion force for each cam (5); A plurality of sliding plates (602) are respectively fixedly connected to one end surface of a plurality of rotating rods (6) close to each other, and the plurality of sliding plates (602) are all slidably connected to one end surface of a cam (5) close to a seed meter housing (1). The plurality of sliding plates (602) and the cam (5) are slidably matched to realize the control of the plurality of metal clamps (601) to clamp and release seeds.

2. The finger-clamp seed metering device according to claim 1, characterized in that: A transition groove (101) is cut on the inner wall of the seed meter housing (1) close to the cam (5), and the transition groove (101) is connected to the seed metering opening (102) to achieve the sliding seed pushing of the transition multiple metal clamps (601).

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