Simple threshing device for medicago truncatula

Abstract

The utility model discloses a simple threshing device for medicago truncatula so as to solve the technical problems that an existing threshing device is inconvenient to operate, low in efficiency and insufficient in safety. The inner bottom surface of the tray is provided with a lower rubbing surface, the bottom of the rubbing plate is provided with an upper rubbing surface, two sides of the top of the tray are provided with slideways, the upper part of the rubbing plate is connected with a cross beam, the rubbing plate is connected with the cross beam through a connecting rod, the cross beam is connected with the slideways in a sliding manner, and the cross beam is provided with a threaded hole. Threads corresponding to the threaded holes are arranged on the connecting rod, and the washboard is rotatably connected with the bottom of the connecting rod. The device has the advantages of being convenient to operate, high in working efficiency and good in safety.

Description

Technical Field

[0001] This utility model relates to the technical field of seed threshing devices, specifically to a simple threshing device for alfalfa. Background Technology

[0002] Alfalfa (Alfalfa tribulus) is a legume, diploid, with a short growth cycle and easy cultivation. It can fix nitrogen in a symbiotic relationship with rhizobia. Its whole genome has been sequenced, making it a model plant for studying nitrogen fixation symbiosis. Nitrogen fixation symbiosis is currently a hot research topic and an important component of the new green revolution. Research on nitrogen fixation symbiosis helps reduce the use of chemical fertilizers, thereby reducing greenhouse gas emissions and eutrophication of water bodies.

[0003] Alfalfa seeds are hard and covered with sharp spines, making them difficult to remove. Currently, tweezers are used to press and pry open the seeds, which is time-consuming and can easily injure the experimenter's fingers. Therefore, a device is needed to safely and quickly thresh alfalfa seeds. Utility Model Content

[0004] This utility model provides a simple threshing device for alfalfa to solve the technical problems of inconvenient operation, low efficiency and insufficient safety of existing threshing devices.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A simple threshing device for alfalfa is designed, comprising a tray and a shredder. The bottom surface of the tray has a lower shredding surface, and the bottom of the shredder has an upper shredding surface. Slides are provided on both sides of the top of the tray. A crossbeam is connected above the shredder. The shredder and the crossbeam are connected by a connecting rod. The crossbeam and the slides are slidably connected. The crossbeam has a threaded hole, and the connecting rod has a thread corresponding to the threaded hole. The bottom of the shredder and the connecting rod are rotatably connected.

[0007] Furthermore, the slide is located on the top of opposite sides of the tray, and the slide is configured as a chute. The end of the chute has an opening for removing the washboard and crossbeam, and both ends of the crossbeam are equipped with rollers that match the chute.

[0008] Furthermore, it also includes a cover plate that can be installed in a groove to seal the tray when the crossbeam is removed.

[0009] Furthermore, both the lower and upper rubbing surfaces are rubber rubbing surfaces with wavy raised textures. The rubbing board has curved inclined surfaces on both sides.

[0010] Furthermore, a first filter screen is provided on the side of the tray, and the first filter screen is detachably connected to the tray via a first mounting groove. The mesh diameter of the first filter screen is larger than the diameter of the alfalfa seeds. Alternatively, a second filter screen is provided on the side of the tray, and the second filter screen is detachably connected to the tray via a second mounting groove. The mesh diameter of the second filter screen is smaller than the diameter of the alfalfa seeds. An intermediate filter screen is provided in front of the second filter screen inside the tray, and the mesh diameter of the intermediate filter screen is larger than the diameter of the alfalfa seeds.

[0011] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0012] This invention utilizes a threaded connecting rod to adjust the downward pressing force of the washboard, eliminating the need for manual squeezing of alfalfa pods. It is easy to operate and highly efficient. The design of two-layer filter screens can separate the seeds and pods for quick seed extraction. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model.

[0014] Figure 2 This is a top view of Embodiment 1 of the present utility model.

[0015] Figure 3 This is a schematic diagram of the installation of the washboard 2 in Embodiment 1 of this utility model.

[0016] Figure 4 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0017] In the figure, there is a tray 1, a lower rubbing surface 11, a chute 12, an opening 13, a first filter screen 14, an intermediate filter screen 15, a mounting groove 16, a rubbing plate 2, a crossbeam 21, a connecting rod 22, a roller 23, a threaded hole 24, a rotating hole 25, and an upper rubbing surface 26. Detailed Implementation

[0018] The specific embodiments of this utility model will be described below with reference to the accompanying drawings and examples. However, the following examples are only used to illustrate this utility model in detail and do not limit the scope of this utility model in any way.

[0019] Example 1: A simple threshing device for alfalfa, see [link to example]. Figure 1 and Figure 2 The system includes a tray 1 and a washboard 2. The tray 1 is a rectangular box-shaped structure with a lower washboard 11 on its inner bottom surface. Slides, which are elongated grooves 12, are provided on both sides of the top of the tray 1. The grooves 12 are respectively provided on the left and right sides of the tray 1. An opening 13 is provided at the end of the groove 12.

[0020] For the installation structure of washboard 2, please refer to [link / reference]. Figure 3The washboard 2 has a crossbeam 21 connected to its upper part. The washboard 2 and the crossbeam 21 are connected by a connecting rod 22. The crossbeam 21 and the slide groove 12 are slidably connected. To reduce friction, rollers 23 can be installed on both sides of the crossbeam 21. The opening 13 on the slide groove 12 facilitates the installation and removal of the washboard 2 and the crossbeam 21. The crossbeam 21 has a threaded hole 24, and the connecting rod 22 has a thread corresponding to the threaded hole 24. The washboard 2 has a rotating hole 25, and the bottom of the connecting rod 22 is rotatably connected to the rotating hole 25. Both the threaded hole 24 and the rotating hole 25 are columnar hollow structures, which can play a guiding role and increase stability.

[0021] The bottom of the washboard 2 has an upper rubbing surface 26. Both the lower rubbing surface 11 of the tray 1 and the upper rubbing surface 26 of the washboard 2 are rubber rubbing surfaces with wavy raised textures. Arc-shaped slopes are provided on both sides of the upper rubbing surface 26 of the washboard 2 to facilitate the entry of alfalfa fruits under the washboard 2.

[0022] In use, the alfalfa fruits are placed in tray 1, and the crossbeam 21 and the rubbing board 2 are installed into the groove 12 through the opening 13. The connecting rod 22 is rotated to drive the rubbing board 2 to press down to a moderate force, and then the connecting rod 22 is repeatedly pushed to drive the rubbing board 2 to press and rub the alfalfa fruits, causing the seeds to separate from the fruits. Because the downward pressure of the rubbing board 2 can be increased by rotating the connecting rod 22, the operation is more convenient and labor-saving.

[0023] Example 2: As an improvement to Example 1, a filter screen can be installed on the side of tray 1 to facilitate the collection of threshed seeds. For details, see... Figure 4 A first filter screen is installed on the right side of the tray 1, and a second filter screen is detachably connected to the tray 1 via the mounting groove 16. The mesh diameter of the first filter screen 14 is larger than the diameter of the alfalfa seeds, which facilitates the filtering out of the threshed seeds.

[0024] As a further improvement, an intermediate filter 15 is connected inside the tray 1 in a sliding or fixed manner. The mesh diameter of the intermediate filter 15 is larger than that of the alfalfa seeds. Then, a second filter with a mesh diameter smaller than that of the alfalfa seeds replaces the first filter 14. In addition, a cover plate is provided, which can be installed in the slide groove 12 to seal the tray 1 when the crossbeam 21 is removed. After the seeds are threshed, the tray 1 is sealed with the cover plate, and the tray 1 is erected for vibration screening. The seeds fall from the intermediate filter 15, blocking large kernel shells, while the second filter removes small impurities from the seeds. Finally, the seeds can be removed from the tray 1 by pulling out the second filter from the mounting groove 16.

[0025] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. However, those skilled in the art will understand that, without departing from the spirit of the present invention, various specific parameters in the above embodiments can be changed to form multiple specific embodiments, all of which are common variations of the present invention, and will not be described in detail here.

Claims

1. A simple threshing device for alfalfa, characterized in that: The device includes a tray and a washboard. The bottom surface of the tray has a lower washboard surface, and the bottom of the washboard has an upper washboard surface. Slides are provided on both sides of the top of the tray. A crossbeam is connected above the washboard. The washboard and the crossbeam are connected by a connecting rod. The crossbeam and the slides are slidably connected. The crossbeam has a threaded hole, and the connecting rod has a thread corresponding to the threaded hole. The bottom of the washboard and the connecting rod are rotatably connected.

2. The simple threshing device for alfalfa according to claim 1, characterized in that: The slide is located on the top of opposite sides of the tray, and the slide is configured as a chute.

3. The simple threshing device for alfalfa according to claim 2, characterized in that: The end of the chute is provided with an opening for removing the washboard and crossbeam.

4. The simple threshing device for alfalfa according to claim 3, characterized in that: It also includes a cover plate that can be installed in a groove to seal the tray when the crossbeam is removed.

5. The simple threshing device for alfalfa according to claim 2, characterized in that: The two ends of the crossbeam are provided with rollers that match the slide groove.

6. The simple threshing device for alfalfa according to claim 1, characterized in that: Both the lower and upper rubbing surfaces are rubber rubbing surfaces with wavy raised textures.

7. The simple threshing device for alfalfa according to claim 1, characterized in that: The washboard has curved slopes on both sides.

8. The simple threshing device for alfalfa according to claim 1, characterized in that: A first filter screen is provided on the side of the tray. The first filter screen is detachably connected to the tray through a first mounting groove. The mesh diameter of the first filter screen is larger than the diameter of the alfalfa seeds.

9. The simple threshing device for alfalfa according to claim 1, characterized in that: A second filter screen is provided on the side of the tray. The second filter screen is detachably connected to the tray through a second mounting groove. The mesh diameter of the second filter screen is smaller than the diameter of the alfalfa seeds. An intermediate filter screen is provided in front of the second filter screen inside the tray. The mesh diameter of the intermediate filter screen is larger than the diameter of the alfalfa seeds.

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