Anti-blocking cleaning device for grain combine harvester threshing cylinder

Abstract

This utility model discloses an anti-clogging cleaning device for the threshing drum of a grain combine harvester, relating to the field of threshing drum anti-clogging technology. It includes a positioning end, one end of which is fixedly connected to a clearing mechanism. First support rods are fixedly installed at equal intervals along the edge of the positioning end, and threshing rods are fixedly installed on the body of the first support rods. The clearing mechanism is movably connected to the inner side of the positioning end. This utility model uses an electric cylinder to drive the clearing mechanism for automatic cleaning. The connecting end is connected to radially distributed electric cylinders. After the electric cylinders are started, they drive the connecting end, second support rods, and push rods to perform telescopic movements within the threshing drum, achieving proactive prevention of threshing drum clogging. This eliminates the need for frequent manual shutdowns for cleaning, improving harvesting efficiency. The push rods are precisely positioned between the threshing rods, effectively removing debris from easily clogged areas and reducing the risk of clogging.

Description

Technical Field

[0001] This utility model relates to the field of anti-clogging technology for threshing drums, and in particular to an anti-clogging and cleaning device for the threshing drum of a grain combine harvester. Background Technology

[0002] The threshing drum is one of the core components of a grain combine harvester, mainly used for threshing harvested crops.

[0003] However, in existing technologies, the threshing drums of grain combine harvesters often become clogged during operation due to problems such as excessively high crop moisture content, uneven feeding, and entanglement with weeds. Once clogged, not only does it require frequent manual shutdowns for cleaning, reducing harvesting efficiency, but it also easily leads to wear and tear on threshing drum components, increased grain breakage, and even equipment failure. Furthermore, traditional cleaning methods often struggle to accurately remove debris between the threshing rods and lack proactive mechanisms to prevent clogging, failing to meet the demands of efficient and continuous operation in modern agriculture. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the technology of grain combine harvester threshing drums that are easily clogged due to crop characteristics, uneven feeding, impurities entanglement, etc., and that require frequent manual cleaning, resulting in low harvesting efficiency, severe equipment wear and poor cleaning effect. Therefore, this invention proposes a grain combine harvester threshing drum anti-clogging cleaning device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a threshing drum anti-clogging and cleaning device for a grain combine harvester, comprising a positioning end, one end of which is fixedly connected to a clearing mechanism, and a first support rod fixedly installed at equal intervals along the edge of the positioning end. A threshing rod is fixedly installed on the body of the first support rod, and a clearing mechanism is movably connected to the inner side of the positioning end. The clearing mechanism includes a second support rod, a push rod, a connecting end, and an electric cylinder. The push rod is fixedly installed on the body of the second support rod and is located between two adjacent threshing rods. The second support rod is parallel to the positioning end, and an electric cylinder is fixedly connected to the end of the connecting end. The electric cylinders are radially distributed.

[0006] Preferably, a reinforcing plate is fixedly connected between the plurality of first support rods, and a positioning piece is fixedly installed at the edge of the reinforcing plate.

[0007] Preferably, a transmission rod is fixedly installed inside the positioning end, and the transmission rod is fixedly connected to the reinforcing plate.

[0008] Preferably, the reinforcing plate has an arc-shaped slot inside, and the connecting end is located inside the arc-shaped slot.

[0009] Preferably, a positioning ring is fixedly connected between the plurality of electric cylinders, and the positioning ring is sleeved on the outer wall of the transmission rod.

[0010] Preferably, a spiral feed plate is fixedly installed on the outer wall of the positioning end.

[0011] Preferably, a first gear is fixedly connected to the outer wall of the positioning ring, and a second gear meshes with the bottom of the first gear.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the unblocking mechanism is automatically cleaned by driving an electric cylinder. The connecting end is connected to an electric cylinder that is radially distributed. After the electric cylinder is started, it drives the connecting end, the second support rod and the push rod to move in and out of the threshing drum, realizing the active prevention of threshing drum blockage. It eliminates the need for frequent manual shutdowns for cleaning, improves harvesting efficiency, and the push rod is precisely positioned between the threshing rods, which can effectively remove debris from easily blocked parts and reduce the risk of blockage.

[0014] 2. In this utility model, by adjusting the rotation speed, a speed difference is generated between the transmission rod and the first gear, allowing the connecting end to move within the arc-shaped slot, so that the unblocking mechanism can be adjusted within a fixed range, improving the cleaning effect. The spiral feeding plate on the outer wall of the positioning end can transport the crop to the threshing area when the threshing drum rotates, assisting in uniform feeding. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a grain combine harvester threshing drum anti-clogging cleaning device proposed in this utility model;

[0016] Figure 2 This is a front view of a grain combine harvester threshing drum anti-clogging cleaning device proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the end structure of an anti-clogging cleaning device for the threshing drum of a grain combine harvester proposed in this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of a portion of the second support rod of a grain combine harvester threshing drum anti-clogging cleaning device proposed in this utility model.

[0019] Legend: 1. Positioning end; 2. Unblocking mechanism; 3. First support rod; 4. Threshing rod; 5. Spiral feed plate; 21. Second support rod; 22. Push rod; 23. Connecting end; 24. Electric cylinder; 25. Positioning ring; 26. Transmission rod; 27. Reinforcing plate; 28. Arc-shaped strip hole; 29. ​​Positioning piece; 210. First gear; 211. Second gear. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides a clogging prevention and cleaning device for the threshing drum of a grain combine harvester, including a positioning end 1. A clogging removal mechanism 2 is fixedly connected to one end of the positioning end 1. First support rods 3 are fixedly installed at equal intervals along the edge of the positioning end 1. Threshing rods 4 are fixedly installed on the rod body of the first support rods 3. The clogging removal mechanism 2 is movably connected to the inner side of the positioning end 1. The clogging removal mechanism 2 includes a second support rod 21, a push rod 22, a connecting end 23, and an electric cylinder 24. The push rod 22 is fixedly installed on the rod body of the second support rod 21 and is located between two adjacent threshing rods 4. The second support rod 21 is parallel to the positioning end 1. An electric cylinder 24 is fixedly connected to the end of the connecting end 23. The electric cylinders 24 are radially distributed. A reinforcing plate 27 is fixedly connected between multiple first support rods 3. A positioning piece 29 is fixedly installed at the edge of the reinforcing plate 27.

[0023] The specific setup and function of this embodiment are described below. The inner side of the positioning end 1 is connected to the unblocking mechanism 2. The second support rod 21 of the unblocking mechanism 2 is parallel to the positioning end 1. The push rod 22 is mounted on the second support rod 21 and located between adjacent threshing rods 4. The connecting end 23 is connected to radially distributed electric cylinders 24. After the electric cylinder 24 is started, it drives the connecting end 23, the second support rod 21, and the push rod 22 to move in and out of the threshing drum. The push rod 22 can penetrate deep between the threshing rods 4 to push out straw, debris, etc. that may cause blockage, thus preventing blockage. The threshing rods 4 are set and installed at equal intervals along the edges of the first support rods 3 for normal threshing operations. The reinforcing plate 27 and the edge positioning piece 29 between the multiple first support rods 3 enhance the structural stability of the device. The unblocking mechanism 2 is automatically cleaned by the electric cylinder 24, realizing active prevention of blockage in the threshing drum. It eliminates the need for frequent manual shutdowns for cleaning, improving harvesting efficiency. The push rod 22 is precisely positioned between the threshing rods 4, which can effectively remove debris from easily blocked areas and reduce the risk of blockage. The design of the reinforcing plate 27 and the positioning piece 29 improves the overall strength and reliability of the device, reduces structural damage caused by the cleaning process, extends the service life of the equipment, and ensures the continuous and stable operation of the grain combine harvester during operation.

[0024] Example 2: Figure 2 , Figure 3 and Figure 4 As shown, a transmission rod 26 is fixedly installed inside the positioning end 1. The transmission rod 26 is fixedly connected to the reinforcing plate 27. An arc-shaped strip hole 28 is opened inside the reinforcing plate 27. The connecting end 23 is located inside the arc-shaped strip hole 28. A positioning ring 25 is fixedly connected between multiple electric cylinders 24. The positioning ring 25 is sleeved on the outer wall of the transmission rod 26. A spiral feed plate 5 is fixedly installed on the outer wall of the positioning end 1. A first gear 210 is fixedly connected to the outer wall of the positioning ring 25. A second gear 211 meshes with the bottom of the first gear 210.

[0025] The overall effect of this embodiment is that, during operation, the second gear 211 is connected to another external power source. By meshing the first gear 210 with the second gear 211, the positioning ring 25 is driven. The positioning ring 25 is connected to all the electric cylinders 24, ensuring that the electric cylinders 24 and the transmission rod 26 rotate synchronously. By adjusting the rotation speed, a speed difference is created between the transmission rod 26 and the first gear 210, allowing the connecting end 23 to move within the arc-shaped slot 28. This allows the unblocking mechanism 2 to be adjusted within a fixed range, improving the cleaning effect. The transmission rod 26 and the reinforcing plate 27 ensure stable transmission. The spiral feeding plate 5 on the outer wall of the positioning end 1 can convey the crop to the threshing area when the threshing drum rotates, assisting in uniform feeding. The arc-shaped slot 28 and the transmission rod 26, among other structural elements, make the telescopic cleaning movement of the unblocking mechanism 2 more precise and stable, improving the cleaning effect and efficiency, reducing the risk of blockage caused by uneven feeding, and assisting the threshing process, making the overall operation smoother and more efficient, and enhancing the practicality and reliability of the device in a grain combine harvester.

[0026] The device's operation and working principle are as follows: The transmission rod 26 is connected to an external power source. When the equipment is started, the positioning end 1 rotates with the threshing drum. The threshing rods 4 on the first support rod 3 perform normal threshing operations. Simultaneously, the spiral feeding plate 5 on the outer wall of the positioning end 1 conveys the crop to the threshing area, assisting in uniform feeding. During this process, the first gear 210 drives all the electric cylinders 24 to rotate synchronously with the transmission rod 26. When it is necessary to clean debris between the threshing rods 4, the electric cylinders 24 are activated, causing the connecting end 23, the second support rod 21, and the push rod 22 to extend and retract within the threshing drum. The push rod 22 penetrates between adjacent threshing rods 4, pushing out straw, debris, etc., to prevent blockage. If it is necessary to adjust the clearing range, the output power of the power source connected to the second gear 211 is adjusted to create a speed difference between the transmission rod 26 and the first gear 210, allowing the connecting end 23 to move within the arc-shaped slot 28 of the reinforcing plate 27. This achieves position adjustment of the clearing mechanism 2 within a fixed range, improving the cleaning effect.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A kind of grain combine harvester threshing cylinder anti-blocking cleaning device, including positioning tip (1), one end of the positioning tip (1) is fixedly connected with unblocking mechanism (2), first support rod (3) is fixedly installed at the edge of the positioning tip (1) at equal intervals, and threshing rod (4) is fixedly installed on the stem of the first support rod (3), it is characterized by: The inner side of the positioning end (1) is movably connected to a blockage clearing mechanism (2). The blockage clearing mechanism (2) includes a second support rod (21), a push rod (22), a connecting end (23), and an electric cylinder (24). The push rod (22) is fixedly installed on the body of the second support rod (21). The push rod (22) is located between two adjacent threshing rods (4). The second support rod (21) is parallel to the positioning end (1). The end of the connecting end (23) is fixedly connected to an electric cylinder (24). The electric cylinders (24) are distributed radially.

2. The anti-clogging and cleaning device for the threshing drum of a grain combine harvester according to claim 1, characterized in that: A reinforcing plate (27) is fixedly connected between multiple first support rods (3), and a positioning piece (29) is fixedly installed at the edge of the reinforcing plate (27).

3. The anti-clogging and cleaning device for the threshing drum of a grain combine harvester according to claim 1, characterized in that: A transmission rod (26) is fixedly installed inside the positioning end (1), and the transmission rod (26) is fixedly connected to the reinforcing plate (27).

4. The anti-clogging and cleaning device for the threshing drum of a grain combine harvester according to claim 2, characterized in that: The reinforcing plate (27) has an arc-shaped strip hole (28) inside, and the connecting end (23) is located inside the arc-shaped strip hole (28).

5. The anti-clogging and cleaning device for the threshing drum of a grain combine harvester according to claim 1, characterized in that: A positioning ring (25) is fixedly connected between multiple electric cylinders (24), and the positioning ring (25) is sleeved on the outer wall of the transmission rod (26).

6. The anti-clogging and cleaning device for the threshing drum of a grain combine harvester according to claim 1, characterized in that: A spiral feed plate (5) is fixedly installed on the outer wall of the positioning end (1).

7. The anti-clogging and cleaning device for the threshing drum of a grain combine harvester according to claim 5, characterized in that: A first gear (210) is fixedly connected to the outer wall of the positioning ring (25), and a second gear (211) meshes with the bottom of the first gear (210).

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