Airflow auxiliary cleaning device of combined seed harvester

Abstract

The utility model relates to an airflow-assisted cleaning device of a combined seed harvester, which comprises a protective casing, a screening fan is arranged inside the protective casing, a protective filter screen is fixedly connected inside one side of the protective casing, one side of the protective casing is communicated with a breather pipe, the other end of the breather pipe is communicated with a connecting pipe, and the connecting pipe is communicated with the protective casing. A sealing plate is embedded in one side of the connecting pipe, a fixed handle is fixedly connected to one side of the sealing plate, a mounting filter screen is fixedly connected to the other side of the sealing plate located on the left side, and an exhaust filter screen is fixedly connected to the other side of the sealing plate located on the right side; in the cleaning process, the electric heating pipe installed on one side of the filter screen is used for heating, blown gas is hot gas, the hot gas is used for cleaning, the screening effect can be achieved, crops can be dried, the water content of the crops is effectively reduced, and the workload of follow-up treatment work is reduced.

Description

Technical Field

[0001] This utility model relates to an airflow-assisted cleaning device for a combined seed harvester, belonging to the field of harvester technology. Background Technology

[0002] The air-screen cleaning device is an important component of the combine harvester. Its performance directly affects the overall cleaning quality of the machine. It is of practical significance for improving the efficiency of mechanized harvesting and reducing the loss rate and impurity rate. The blower is the main component of the air-screen cleaning device and plays an important role in the cleaning quality. Compared with other blowers, the centrifugal blower has a simple structure, is easy to configure, has a large control area, and can enable the cleaning screen to achieve good cleaning effect.

[0003] However, during air sieving, the airflow does not have a heating function, and the harvested crops often have a high moisture content and are quite damp. Failure to reduce the moisture content of the crops in time will increase the workload of subsequent processing. Therefore, an airflow-assisted cleaning device for combined seed harvesters is needed for people to use. Utility Model Content

[0004] The purpose of this invention is to provide an airflow-assisted cleaning device for a combined seed harvester. During the cleaning process, an electric heating tube on the side where the filter screen is installed is used to heat the air, making the blown-out gas hot. Using hot gas for cleaning not only achieves the screening effect but also dries the crops, effectively reducing their moisture content and the workload of subsequent processing. In addition, during later maintenance, the lifting rod is pulled upward to move the limiting rod out of the limiting insertion hole, and the sealing plate is pulled out using the fixed handle, allowing for quick removal of the installation filter screen or exhaust filter screen for maintenance. Installation is also particularly convenient, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An airflow-assisted cleaning device for a combined seed harvester includes a protective housing. A screening fan is installed inside the protective housing. A protective filter screen is fixedly connected to one side of the protective housing. An air vent pipe is connected to one side of the protective housing. A connecting pipe is connected to the other end of the air vent pipe. A sealing plate is embedded inside one side of the connecting pipe. A fixed handle is fixedly connected to one side of the sealing plate. An installation filter screen is fixedly connected to the other side of the sealing plate on the left side. An exhaust filter screen is fixedly connected to the other side of the sealing plate on the right side.

[0007] Furthermore, the sealing plates are arranged symmetrically, and rubber sealing rings are fixedly connected to the outer sides of both sealing plates.

[0008] Furthermore, an electric heating tube is fixedly connected to one side of the filter screen, and the electric heating tube is arranged in a meandering shape.

[0009] Furthermore, the top surface of the connecting tube is provided with a lifting rod, one end of which is fixedly connected to an anti-detachment slider, and one end of the lifting rod is fixedly connected to a limit rod.

[0010] Furthermore, limit holes are provided on the inner side of the top surface of both sealing plates, and the limit rod is inserted into the sealing plate through the limit holes.

[0011] Furthermore, a limiting groove is provided on the inner side of the top of the connecting tube, and the diameter of the anti-detachment slider matches the inner diameter of the limiting groove, and the anti-detachment slider is slidably connected to the limiting groove.

[0012] Furthermore, a strong spring is sleeved on the outer side of the lifting rod, and the two ends of the strong spring are respectively fixedly connected to the connecting tube and the anti-detachment slider.

[0013] The beneficial effects of this utility model are:

[0014] By incorporating a sealing plate, electric heating element, lifting rod, and strong spring, this invention, during the cleaning process, utilizes the electric heating element on the side where the filter screen is installed to heat the air, making the blown-out gas hot. Using this hot gas for cleaning not only achieves the screening effect but also dries the crops, effectively reducing their moisture content and decreasing the workload of subsequent processing. Furthermore, for later maintenance, simply pulling up the lifting rod moves the limiting rod out of the limiting hole, and using the fixed handle to pull out the sealing plate allows for quick removal of the installation or exhaust filter screen for maintenance. Installation is also particularly convenient, making this invention worthy of promotion and use. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof.

[0016] Figure 1 This is a schematic diagram of the overall structure of an airflow-assisted cleaning device for a combined seed harvester according to this utility model;

[0017] Figure 2 This is a schematic diagram of the installation structure of the filter screen of the airflow-assisted cleaning device for a combined seed harvester according to this utility model;

[0018] Figure 3 This is a schematic diagram of the installation structure of the exhaust filter screen of an airflow-assisted cleaning device for a combined seed harvester according to this utility model;

[0019] Figure 4 This is a schematic diagram of the external structure of the lifting rod of the airflow-assisted cleaning device for a combined seed harvester according to this utility model;

[0020] Figure 5 This is a schematic diagram of the installation structure of the powerful spring in the airflow-assisted cleaning device of a combined seed harvester according to this utility model;

[0021] The following are labeled in the diagram: 1. Protective housing; 2. Screening fan; 3. Protective filter screen; 4. Vent pipe; 5. Connecting pipe; 6. Sealing plate; 7. Fixed handle; 8. Installed filter screen; 9. Exhaust filter screen; 10. Electric heating element; 11. Lifting rod; 12. Anti-detachment slider; 13. Limiting rod; 14. Limiting insertion hole; 15. Limiting groove; 16. Strong spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1, please refer to Figures 1-5 This utility model provides a technical solution:

[0024] An airflow-assisted cleaning device for a combined seed harvester includes a protective housing 1, a screening fan 2 inside the protective housing 1, a protective filter 3 fixedly connected to one side of the protective housing 1, an air vent 4 connected to one side of the protective housing 1, a connecting pipe 5 connected to the other end of the air vent 4, a sealing plate 6 embedded inside one side of the connecting pipe 5, a fixed handle 7 fixedly connected to one side of the sealing plate 6, an installation filter 8 fixedly connected to the other side of the sealing plate 6 on the left, and an exhaust filter 9 fixedly connected to the other side of the sealing plate 6 on the right.

[0025] As a preferred technical solution of this utility model, the sealing plates 6 are symmetrically arranged, and rubber sealing rings are fixedly connected to the outer sides of both sealing plates 6; this ensures sealing performance and avoids airflow leakage during air separation.

[0026] As a preferred technical solution of this utility model, an electric heating tube 10 is fixedly connected to one side of the filter screen 8, and the electric heating tube 10 is arranged in a meandering shape; by heating with the electric heating tube 10, hot air can be blown in during air separation, which can dry the harvested crops and reduce their moisture content.

[0027] Please refer to Example 2 Figure 5 The difference between this embodiment and Embodiment 1 is that:

[0028] As a preferred technical solution of this utility model, the top surface of the connecting pipe 5 is provided with a lifting rod 11, and an anti-detachment slider 12 is fixedly connected to the outer side of one end of the lifting rod 11. A limiting insertion rod 13 is fixedly connected to one end of the lifting rod 11. Limiting insertion holes 14 are opened on the inner side of the top surface of the two sealing plates 6, and the limiting insertion rod 13 is inserted into the sealing plate 6 through the limiting insertion hole 14. A limiting groove 15 is opened on the inner side of the top of the connecting pipe 5, and the diameter of the anti-detachment slider 12 matches the inner diameter of the limiting groove 15. The anti-detachment slider 12 is slidably connected to the limiting groove 15. A strong spring 16 is sleeved on the outer side of the lifting rod 11, and the two ends of the strong spring 16 are fixedly connected to the connecting pipe 5 and the anti-detachment slider 12 respectively. This facilitates the disassembly of the filter screen 8, the exhaust filter screen 9 and the electric heating tube 10, and makes maintenance convenient and quick.

[0029] Working principle of this utility model:

[0030] When in use, the screening fan 2 blows air while the meandering electric heating tube 10 heats the air, allowing it to be heated as it flows. This hot air circulation effectively cleans the crops, reducing their moisture content and the workload of subsequent processing. After long-term use, if maintenance is required, the lifting rod 11 can be pulled upwards to move the limiting rod 13 out of the limiting hole 14. The sealing plate 6 can then be pulled out using the fixed handle 7, allowing for quick removal of the installation filter 8 or the exhaust filter 9 for easy maintenance.

[0031] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] 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. An airflow-assisted cleaning device for a combined seed harvester, comprising a protective housing (1), characterized in that: The protective housing (1) is equipped with a screening fan (2) inside. A protective filter screen (3) is fixedly connected to one side of the protective housing (1). A ventilation pipe (4) is connected to one side of the protective housing (1). A connecting pipe (5) is connected to the other end of the ventilation pipe (4). A sealing plate (6) is embedded in one side of the connecting pipe (5). A fixed handle (7) is fixedly connected to one side of the sealing plate (6). An installation filter screen (8) is fixedly connected to the other side of the sealing plate (6) on the left. An exhaust filter screen (9) is fixedly connected to the other side of the sealing plate (6) on the right.

2. The airflow-assisted cleaning device for a combined seed harvester according to claim 1, characterized in that: The sealing plates (6) are arranged symmetrically, and rubber sealing rings are fixedly connected to the outer sides of both sealing plates (6).

3. The airflow-assisted cleaning device for a combined seed harvester according to claim 1, characterized in that: An electric heating tube (10) is fixedly connected to one side of the installed filter (8), and the electric heating tube (10) is arranged in a meandering shape.

4. The airflow-assisted cleaning device for a combined seed harvester according to claim 1, characterized in that: The top surface of the connecting tube (5) is provided with a lifting rod (11), and an anti-detachment slider (12) is fixedly connected to the outer side of one end of the lifting rod (11), and a limit plug (13) is fixedly connected to one end of the lifting rod (11).

5. The airflow-assisted cleaning device for a combined seed harvester according to claim 4, characterized in that: Limiting holes (14) are provided on the inner side of the top surface of both sealing plates (6), and the limiting rod (13) is inserted into the sealing plate (6) through the limiting holes (14).

6. The airflow-assisted cleaning device for a combined seed harvester according to claim 4, characterized in that: The connecting pipe (5) has a limiting groove (15) on its top inner side, and the diameter of the anti-detachment slider (12) matches the inner diameter of the limiting groove (15), and the anti-detachment slider (12) is slidably connected to the limiting groove (15).

7. The airflow-assisted cleaning device for a combined seed harvester according to claim 4, characterized in that: A strong spring (16) is sleeved on the outside of the lifting rod (11), and the two ends of the strong spring (16) are respectively fixedly connected to the connecting tube (5) and the anti-detachment slider (12).

Images