Threshing machine for agricultural machinery
By introducing support legs and a cam-driven collection box design into the threshing machine, combined with a filter collection frame, the problem of rice residue remaining in the straw is solved, achieving efficient grain collection and a simplified processing procedure.
Patent Information
- Application Number
- CN202520397506.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-09
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-09
AI Technical Summary
During the threshing process, existing threshing machines often leave rice grains inside the straw, making subsequent processing time-consuming and labor-intensive. Furthermore, existing devices cannot effectively improve the collection efficiency of rice grains.
A threshing machine for agricultural machinery was designed. By setting support legs inside the threshing machine to drive cams to move the collection box back and forth, combined with a filter collection frame and a sliding collection rail, the machine can automatically collect grains from straw and reduce grain residue.
It improves grain collection efficiency, reduces grain loss, simplifies subsequent processing, and enhances efficiency and safety.
Smart Images

Figure CN223786667U_ABST
Abstract
Description
Technical Field
[0001] This utility model is a threshing machine for agricultural machinery, belonging to the field of threshing machine technology. Background Technology
[0002] A threshing machine is a harvesting machine that separates the grains of crops from their stalks, primarily referring to harvesting grain crops. Different types of threshing machines are used depending on the crop. For example, a "rice threshing machine" is suitable for threshing rice; one used for threshing corn is called a "corn threshing machine," and so on. The rice threshing machine, commonly known as a "rice threshing machine," is the most common type of rice threshing machinery. It requires harvesting the rice first, and then uses this machine to separate the rice grains from the stalks. Rice threshing machines are divided into two categories: one is manually driven, called a "human-powered rice threshing machine," a semi-mechanized tool; the other is powered, called a "powered rice threshing machine." The advent of rice threshing machines has greatly reduced the labor intensity of rice harvesting and improved agricultural productivity.
[0003] Publication number CN213662550U mentions an agricultural threshing machine that automatically detaches chopped straw, eliminating the need for users to manually remove the chopped straw from the threshing bin. This significantly improves user efficiency, reduces the probability of users touching the chopped blades, and enhances user safety. However, during the threshing process, grains fall through the filter screen to the discharge port, but a large amount of undischarged grains remain inside the threshing machine and are still embedded in the straw. This causes time and effort for users in subsequent processing. There is an urgent need for an agricultural threshing machine to solve the aforementioned problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a threshing machine for agricultural machinery, thereby solving the problems mentioned in the background art. This utility model is highly practical. When the threshing equipment is processing rice, the support legs drive the cam to continuously push the collection box back and forth, which can cause the rice grains in the straw to fall into the filter collection frame, thereby increasing the collection effect of rice grains and reducing the amount of rice grains falling.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a threshing machine for agricultural machinery, including a threshing machine body, two fixed frames are fixedly connected to the rear end of the threshing machine body, a support leg is fixedly connected inside one of the fixed frames, a cam is fixedly connected to the output end of the support leg, a threshing device is provided inside the threshing machine body, and a filter collection frame is fixedly connected inside the threshing machine body.
[0006] A collection box is slidably connected to the body of the threshing machine. A sliding groove is opened in the collection box, and a sliding collection rail is slidably connected in the sliding groove. Three first support slide rods are fixedly connected to the left end of the collection box, and two second support slide rods are fixedly connected to the right end of the collection box. A push rod is fixedly connected to the right end of the collection box, and the push rod cooperates with a cam. Springs are slidably connected to the circumferential surfaces of the two second support slide rods.
[0007] Furthermore, a feed pipe is connected through and fixedly connected to the upper end of the threshing machine body, and a discharge pipe is connected through and fixedly connected to the lower end of the threshing machine body.
[0008] Furthermore, multiple pull rings are fixedly connected to the upper end of the threshing machine body by bolts, and multiple protective pads are fixedly connected to both the left and right ends of the threshing machine body.
[0009] Furthermore, an observation window is provided at the right end of the threshing machine body, a sliding shell is fixedly connected to the front end of the threshing machine body, three first support sliding rods are slidably connected to the front end of the sliding shell, and four support legs are fixedly connected to the lower end of the threshing machine body.
[0010] Furthermore, a guide plate is fixedly connected between the front and rear interiors of the threshing machine body, and the surface of the guide plate is provided with a smooth layer.
[0011] Furthermore, a slider is fixedly connected to the front end of the collection box, and a sliding rod is fixedly connected inside the threshing machine body. The slider is slidably connected to the circumferential surface of the sliding rod.
[0012] The beneficial effects of this utility model: This utility model is a threshing machine for agricultural machinery. Because this utility model adds a second support slide rod, spring, cam, support leg, collection box, sliding collection rail, push rod, filter collection frame and the first support slide rod, our design improvement and actual use show that this device has a reasonable structure and good practicality. When the threshing equipment is processing rice, the support leg drives the cam to continuously push the collection box back and forth, which can make the grains in the straw fall into the filter collection frame, which can increase the collection effect of grains and reduce the amount of grains falling. Attached Figure Description
[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0014] Figure 1 This is a first-view three-dimensional schematic diagram of the overall structure of a threshing machine for agricultural machinery according to this utility model;
[0015] Figure 2 This is a two-dimensional schematic diagram of the overall structure of a threshing machine for agricultural machinery according to the present invention from a second perspective.
[0016] Figure 3 This is a cross-sectional structural diagram of a threshing machine for agricultural machinery according to the present invention;
[0017] Figure 4 This is a schematic diagram of the structure of the collection box in a threshing machine for agricultural machinery according to this utility model;
[0018] Figure 5 This is a three-dimensional schematic diagram of the overall structure of a threshing machine for agricultural machinery according to the present invention, taken from a third-view perspective.
[0019] Figure 6 This is a partial cross-sectional structural diagram of a threshing machine for agricultural machinery according to the present invention;
[0020] Figure 7 This is a four-dimensional schematic diagram of the overall structure of a threshing machine for agricultural machinery according to the present invention, viewed from a fourth perspective.
[0021] In the diagram: 1-Threshing machine body, 2-Observation window, 3-Pull ring, 4-Feed pipe, 5-Sliding shell, 6-First support slide rod, 7-Protective pad, 8-Support leg, 9-Cam, 10-Fixing frame, 11-Second support slide rod, 12-Spring, 13-Threshing equipment, 14-Guide plate, 15-Push rod, 16-Sliding collection rail, 17-Collection box, 18-Filter collection frame, 19-Discharge pipe, 20-Slide groove, 21-Sliding block, 22-Sliding rod. Detailed Implementation
[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0023] Please see Figures 1-7This utility model provides a technical solution: a threshing machine for agricultural machinery, including a threshing machine body 1. Two fixed frames 10 are fixedly connected to the rear end of the threshing machine body 1. A support leg 8 is fixedly connected inside one of the fixed frames 10. A cam 9 is fixedly connected to the output end of the support leg 8. A threshing device 13 is installed inside the threshing machine body 1. A filter collection frame 18 is fixedly connected inside the threshing machine body 1. A collection box 17 is slidably connected inside the threshing machine body 1. A sliding groove 20 is opened inside the collection box 17, and a sliding collection rail 1 is slidably connected inside the sliding groove 20. 6. Three first support slide rods 6 are fixedly connected to the left end of the collection box 17, and two second support slide rods 11 are fixedly connected to the right end of the collection box 17. A push rod 15 is fixedly connected to the right end of the collection box 17. The push rod 15 cooperates with the cam 9. Springs 12 are slidably connected to the circumferential surfaces of the two second support slide rods 11. This design solves the problem that in the original device, during the threshing process, the grains fall through the filter screen to the discharge port, but a large number of undischarged grains remain in the threshing machine and are still in the straw, which is time-consuming and laborious for users in the subsequent processing.
[0024] As the first embodiment of this utility model: a feed pipe 4 is connected through and fixedly connected to the upper end of the threshing machine body 1, and a discharge pipe 19 is connected through and fixedly connected to the lower end of the threshing machine body 1. The feed pipe 4 installed on the threshing machine body 1 allows the user to feed rice into the threshing machine body 1 through the feed pipe 4, so that the threshing equipment 13 can knock out the grains in the rice. The discharge pipe 19 installed at the bottom of the threshing machine body 1 can discharge the rice in the filter collection frame 18 for the user to collect. Multiple pull rings 3 are fixedly connected to the upper end of the threshing machine body 1 by bolts. Multiple protective pads 7 are fixedly connected to both the left and right ends of the threshing machine body 1. The pull rings 3 installed on the threshing machine body 1 can be connected to an external lifting device to drive the threshing machine body 1 to move, which is convenient for the user to transport the threshing machine body 1. The protective pads 7 installed on the surface of the threshing machine body 1 can protect the surface of the threshing machine body 1, prevent the external equipment from colliding with the threshing machine body 1, and avoid the threshing machine body 1 from scratching or injuring the user. An observation window 2 is provided on the right end of the threshing machine body 1. A sliding shell 5 is fixedly connected to the front end of the threshing machine body 1. Three first support sliding rods 6 are slidably connected to the front end of the sliding shell 5. Four support legs 8 are fixedly connected to the lower end of the threshing machine body 1. The support legs 8 installed at the front end of the threshing machine body 1 allow the user to observe the rice separation and equipment operation status inside the threshing machine body 1 from the outside, so that the user can deal with the situation in time if any problems occur. The sliding shell 5 installed at the front end of the threshing machine body 1 allows the collection box 17 to slide stably inside the threshing machine body 1 and the sliding shell 5. A guide plate 14 is fixedly connected between the front and rear interiors of the threshing machine body 1. The surface of the guide plate 14 is provided with a smooth layer. The guide plate 14 installed inside the threshing machine body 1 can limit the rice to the surface of the threshing equipment 13, which can maximize the working effect of the threshing equipment 13 and effectively reduce the rice grain residue inside the rice. The smooth layer on the surface of the guide plate 14 can discharge the rice inside the guide plate 14. A slider 21 is fixedly connected to the front end of the collection box 17, and a sliding rod 22 is fixedly connected inside the threshing machine body 1. The slider 21 is slidably connected to the circumferential surface of the sliding rod 22. The slider 21 installed at the front end of the collection box 17 can increase the stability of the collection box 17 moving inside the threshing machine body 1 by sliding inside the sliding rod 22.
[0025] As a second embodiment of this utility model: First, rice is introduced into the threshing machine body 1 through the feed pipe 4. Then, the threshing device 13 is run to separate the grains in the rice, causing them to fall into the sliding collection bar 16. At the same time, the filter collection frame 18 is run, driving the cam 9 to rotate, causing its protruding structure to continuously push the push rod 15 to move to the left. When the cam 9 releases the push rod 15, the collection box 17 is reset under the elastic action of the spring 12. This cyclical movement can separate the remaining grains of rice in the sliding collection bar 16. The grains enter the filter collection frame 18 through the collection box 17 and the sliding collection bar 16. The user then collects the grains in the filter collection frame 18. When the support leg 8 stops running at a timed interval, the user can hold the handle at the rear end of the sliding collection bar 16 to remove the straw inside, making it convenient for collection and processing.
[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A threshing machine for agricultural machinery, comprising a threshing machine body (1), characterized in that: The rear end of the threshing machine body (1) is fixedly connected to two fixed frames (10), one of which is fixedly connected to a support leg (8), and the output end of the support leg (8) is fixedly connected to a cam (9). The threshing machine body (1) is equipped with a threshing device (13), and a filter collection frame (18) is fixedly connected to the threshing machine body (1). A collection box (17) is slidably connected inside the threshing machine body (1). A groove (20) is provided inside the collection box (17). A sliding collection rail (16) is slidably connected inside the groove (20). Three first support slide rods (6) are fixedly connected to the left end of the collection box (17). Two second support slide rods (11) are fixedly connected to the right end of the collection box (17). A push rod (15) is fixedly connected to the right end of the collection box (17). The push rod (15) cooperates with the cam (9). Springs (12) are slidably connected to the circumferential surfaces of the two second support slide rods (11).
2. The threshing machine for agricultural machinery according to claim 1, characterized in that: The upper end of the threshing machine body (1) is connected to a feed pipe (4), and the lower end of the threshing machine body (1) is connected to a discharge pipe (19).
3. A threshing machine for agricultural machinery according to claim 1, characterized in that: The upper end of the threshing machine body (1) is fixedly connected with multiple pull rings (3) by bolts, and multiple protective pads (7) are fixedly connected to both the left and right ends of the threshing machine body (1).
4. A threshing machine for agricultural machinery according to claim 1, characterized in that: The threshing machine body (1) has an observation window (2) on its right end. The front end of the threshing machine body (1) is fixedly connected to a sliding shell (5). Three first support sliding rods (6) are slidably connected to the front end of the sliding shell (5). The lower end of the threshing machine body (1) is fixedly connected to four support legs (8).
5. A threshing machine for agricultural machinery according to claim 1, characterized in that: A guide plate (14) is fixedly connected between the front and rear interiors of the threshing machine body (1), and the surface of the guide plate (14) is provided with a smooth layer.
6. A threshing machine for agricultural machinery according to claim 1, characterized in that: The front end of the collection box (17) is fixedly connected to a slider (21), and the threshing machine body (1) is fixedly connected to a sliding rod (22). The slider (21) is slidably connected to the circumferential surface of the sliding rod (22).
Citation Information
Patent Citations
Threshing machine for agricultural machinery
CN213662550U