Spiral stepped arch tooth roller

Abstract

The utility model discloses a spiral step arch tooth roller which comprises a feeding head disc and a discharging head disc, a central pipe is connected between the feeding head disc and the discharging head disc, an installation disc is arranged on the central pipe, a plurality of long tooth rods are connected between the installation disc and the feeding head disc, and the long tooth rods are connected with the feeding head disc. Each long toothed bar is obliquely distributed in the central axis direction of the feeding head disc and the mounting disc, a plurality of long threshing teeth are distributed on each long toothed bar at equal intervals, and a plurality of short toothed bars are connected between the discharging head disc and the mounting disc. Each short toothed bar is obliquely distributed in the direction of the central axis of the discharging head disc and the central axis of the mounting disc, a plurality of short threshing teeth are distributed on each short toothed bar at equal intervals, and the ends of the long threshing teeth and the ends of the short threshing teeth are bent. Compared with the prior art, the corn thresher has the advantages that the corn thresher is excellent in structural strength, threshing efficiency, cleaning performance and the like, and threshing operation is remarkably improved and facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of rollers, in particular to a spiral stepped bow tooth roller. Background Art

[0002] With the continuous advancement of agricultural technology, crop threshing equipment is also constantly upgraded and improved. The existing threshing drum design still needs to be improved in terms of threshing efficiency, structural strength and cleaning performance. For example, traditional drum designs often have the problem of insufficient structural strength, especially when rotating at high speeds, the stability and safety of the drum cannot be guaranteed. In addition, the accumulation and blockage of stems and grass during the threshing process is also a major problem, which seriously affects the threshing efficiency. Therefore, the development of a drum with high structural strength, high threshing efficiency and good cleaning performance is of great significance to improving the efficiency and effect of crop threshing. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a spiral stepped bow tooth roller.

[0004] In order to solve the above technical problems, the technical solution provided by the utility model is: a spiral stepped bow tooth roller, comprising a feed head disc and a discharge head disc, a center tube is connected between the feed head disc and the discharge head disc, a mounting disc is provided on the center tube, a plurality of long tooth rods are connected between the mounting disc and the feed head disc, each of the long tooth rods is obliquely distributed along the central axis direction of the feed head disc and the mounting disc, and a plurality of long threshing teeth are evenly distributed on the long tooth rods, a plurality of short tooth rods are connected between the discharge head disc and the mounting disc, each of the short tooth rods is obliquely distributed along the central axis direction of the discharge head disc and the mounting disc, and a plurality of short threshing teeth are evenly distributed on the short tooth rods, and the ends of the long threshing teeth and the short threshing teeth are both curved.

[0005] Furthermore, the length of the long tooth rod is longer than that of the short tooth rod, and the length of the long threshing teeth is longer than that of the short threshing teeth.

[0006] Furthermore, reinforcement plates are provided on both sides of the mounting plate, the reinforcement plates are sleeved on the central tube and the reinforcement plates on both sides are respectively installed inside the long tooth rod and the short tooth rod.

[0007] Furthermore, the outer circumferences of the reinforcement plate and the mounting plate are both provided with connection openings, and the long tooth rods and the short tooth rods are respectively embedded in the corresponding connection openings.

[0008] Furthermore, the long tooth rods and the short tooth rods are embedded at intervals on the outer circumference of the mounting plate.

[0009] Furthermore, some of the long tooth rods and the short tooth rods are provided with scrapers.

[0010] Furthermore, there are six long tooth rods and six short tooth rods, the feed head disk and the discharge head disk are both hexagonal, and the ends of the long tooth rods and the short tooth rods are respectively inserted into the six corners of the feed head disk and the discharge head disk.

[0011] The advantages of the utility model compared with the prior art are: by introducing the reinforcing plate and the connection port design, the application not only greatly improves the structural strength and stability of the drum, but also ensures its stability and safety during high-speed rotation; at the same time, the spiral discharge method of the auger structure is adopted, so that the drum can efficiently and quickly complete the threshing and discharge process, effectively avoiding the accumulation and blockage of stem grass, and significantly improving work efficiency. In addition, the differentiated design of long threshing teeth and short threshing teeth enables the drum to be flexibly adjusted according to different grass conditions during the threshing process, achieving a better threshing effect; and the application of the scraper further enhances the cleaning performance of the drum, ensuring the smoothness of the screen and the continuous and efficient operation of the threshing system. In summary, the present application has excellent performance in terms of structural strength, threshing efficiency, cleaning performance, etc., which has brought significant improvement and convenience to the threshing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a spiral stepped bow tooth roller of the present application.

[0013] Figure 2 It is a side view structural schematic diagram of a spiral stepped bow tooth roller in the present application.

[0014] Figure 3 It is a schematic diagram of the structure of the installation disk in this application.

[0015] As shown in the figure: 1. Feed head plate, 2. Discharge head plate, 3. Center tube, 4. Mounting plate, 5. Long tooth rod, 6. Long threshing teeth, 7. Short tooth rod, 8. Short threshing teeth, 9. Reinforcement plate, 10. Connection port, 11. Scraper. DETAILED DESCRIPTION

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0017] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings, wherein the same parts are represented by the same reference numerals.

[0018] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0019] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0020] Combined with Figure 1 -Attached Figure 3 A spiral stepped bow tooth drum comprises a feed head disc 1 and a discharge head disc 2, a central tube 3 is connected between the feed head disc 1 and the discharge head disc 2, a mounting disc 4 is arranged on the central tube 3, a plurality of long tooth rods 5 are connected between the mounting disc 4 and the feed head disc 1, each long tooth rod 5 is obliquely distributed along the central axis direction of the feed head disc 1 and the mounting disc 4, and a plurality of long threshing teeth 6 are evenly distributed on the long tooth rod 5, a plurality of short tooth rods 7 are connected between the discharge head disc 2 and the mounting disc 4, each short tooth rod 7 is obliquely distributed along the central axis direction of the discharge head disc 2 and the mounting disc 4, and a plurality of short threshing teeth 8 are evenly distributed on the short tooth rod 7, and the ends of the long threshing teeth 6 and the short threshing teeth 8 are both curved. The length of the long tooth rod 5 is longer than that of the short tooth rod 7, and the length of the long threshing teeth 6 is longer than that of the short threshing teeth 8. The long threshing teeth 6 at the grass feeding end are relatively long. Since the load of the grass feeding is relatively large, the long threshing teeth 6 at the feeding end should be longer, so as to increase the passing space of the grass and facilitate feeding; the short threshing teeth 8 at the grass discharging end are relatively short, and the gap of the grass discharging becomes smaller, which can give the grass appropriate pressure, making the grass less likely to slip, with better synchronization, and can thin the grass to facilitate the separation of the grass. The ends of the long threshing teeth 6 and the short threshing teeth 8 are both curved to achieve flexible threshing, thereby reducing the amount of bran. Among them, the multiple long tooth rods 5 and the multiple short tooth rods 7 form an auger structure as a whole, so as to achieve the effect of spiral discharge and increase the discharge speed.

[0021] In one embodiment, both sides of the mounting plate 4 are provided with reinforcement plates 9, which are sleeved on the central tube 3 and are respectively installed inside the long tooth bar 5 and the short tooth bar 7. The introduction of the reinforcement plates 9 not only enhances the overall structural strength of the drum, but also makes the drum more stable when rotating at high speed, and reduces the noise and wear caused by vibration. Such a design improves the service life and performance of the drum, and also ensures the safety of the drum during operation.

[0022] In one embodiment, the outer circumferences of the reinforcement plate 9 and the mounting plate 4 are provided with connection ports 10, and the long tooth bar 5 and the short tooth bar 7 are respectively embedded in the corresponding connection ports 10. The long tooth bar 5 and the short tooth bar 7 are embedded in the corresponding connection ports 10 to achieve a stable connection with the mounting plate 4 and the reinforcement plate 9. This connection method is not only simple and easy, but also firm and reliable, ensuring that the drum will not loosen or fall off during operation. At the same time, the design of the connection port also facilitates the installation and replacement of the long tooth bar 5 and the short tooth bar 7, improving the maintenance convenience of the drum.

[0023] In one embodiment, the long tooth rods 5 and the short tooth rods 7 are embedded at intervals on the outer circumference of the mounting plate 4. This arrangement not only ensures that the drum has sufficient strength and stability during operation, but also makes full use of the space of the drum to achieve more efficient threshing and discharging. At the same time, the number of the long tooth rods 5 and the short tooth rods 7 is set to six, which matches the hexagonal design of the feed head plate 1 and the discharge head plate 2, making the entire drum structure more compact and coordinated.

[0024] In one embodiment, a scraper 11 is provided on some of the long tooth rods 5 and the short tooth rods 7. The main function of the scraper 11 is to clean the screen at the lower end of the drum to prevent stems, grass or impurities from clogging the screen and affecting the screening effect. The introduction of the scraper 11 improves the cleaning performance of the drum and ensures that the screen is always unobstructed, thereby improving the efficiency and performance of the entire threshing system.

[0025] Working principle: The entire spiral bow-tooth stepped drum is installed on the harvester. During the rotation of the entire drum, the stem grass enters from the feed end and is threshed under the action of the long threshing teeth 6 and the short threshing teeth 8. The threshed grains will fall on the sieve plate below the drum for screening. Since the multiple long tooth rods 5 and the multiple short tooth rods 7 form an integral auger structure, the spiral discharge effect can be achieved, the discharge speed can be increased, and the accumulation of stem grass can be avoided. The short threshing teeth 8 at the grass outlet end are shorter, and the gap for grass outlet becomes smaller, which can give the grass appropriate pressure, making the grass less likely to slip and making the stem grass gradually thinner, avoiding the situation where the stem grass is wrapped in grains. At the same time, the airflow formed during the rotation of the entire drum can blow away the dust on the sieve plate, thereby realizing the self-cleaning function of the sieve plate.

[0026] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A spiral stepped bow tooth drum, comprising a feed head disc (1) and a discharge head disc (2), characterized in that: A central tube (3) is connected between the feed head disk (1) and the discharge head disk (2), a mounting disk (4) is provided on the central tube (3), a plurality of long tooth rods (5) are connected between the mounting disk (4) and the feed head disk (1), each of the long tooth rods (5) is obliquely distributed along the central axis direction of the feed head disk (1) and the mounting disk (4), and a plurality of long threshing teeth (6) are evenly distributed on the long tooth rods (5), a plurality of short tooth rods (7) are connected between the discharge head disk (2) and the mounting disk (4), each of the short tooth rods (7) is obliquely distributed along the central axis direction of the discharge head disk (2) and the mounting disk (4), and a plurality of short threshing teeth (8) are evenly distributed on the short tooth rods (7), and the ends of the long threshing teeth (6) and the short threshing teeth (8) are both curved.

2. The spiral stepped toothed roller according to claim 1, characterized in that: The length of the long tooth rod (5) is longer than the length of the short tooth rod (7), and the length of the long threshing tooth (6) is longer than the length of the short threshing tooth (8).

3. The spiral stepped toothed roller according to claim 1, characterized in that: Reinforcement plates (9) are provided on both sides of the mounting plate (4). The reinforcement plates (9) are sleeved on the central tube (3) and the reinforcement plates (9) on both sides are respectively installed inside the long tooth rod (5) and the short tooth rod (7).

4. The spiral stepped toothed roller according to claim 3, characterized in that: The outer circumferences of the reinforcement plate (9) and the mounting plate (4) are both provided with connection openings (10), and the long toothed rod (5) and the short toothed rod (7) are respectively embedded in the corresponding connection openings (10).

5. The spiral stepped toothed roller according to claim 4, characterized in that: The long tooth rod (5) and the short tooth rod (7) are embedded at intervals on the outer circumference of the mounting plate (4).

6. The spiral stepped toothed roller according to claim 1, characterized in that: Some of the long tooth rods (5) and the short tooth rods (7) are provided with scrapers (11).

7. The spiral stepped toothed roller according to claim 1, characterized in that: The number of the long tooth rods (5) and the short tooth rods (7) is six, the feed head disc (1) and the discharge head disc (2) are both hexagonal, and the ends of the long tooth rods (5) and the short tooth rods (7) are respectively inserted into the six corners of the feed head disc (1) and the discharge head disc (2).

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