Auger anti-blocking device for grain outlet nozzle of harvester
By designing an anti-clogging device for the auger at the grain discharge nozzle of the harvester, the problem of easy clogging of the auger is solved, ensuring smooth grain discharge and normal operation of the harvester. The device adopts a combination structure of base, rotating cover, limit plate and buffer assembly to achieve the anti-clogging effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2026-03-24
AI Technical Summary
The auger at the grain discharge nozzle of existing harvesters is prone to clogging, preventing grain from being discharged smoothly and affecting the normal operation of the harvester.
Design an anti-blocking device for an auger that includes a base, a rotating cover, a limiting plate, a buffer assembly, and a spring. The rotating cover is lightweight and easily opened by grains, the limiting plate restricts the rotation stroke, and the buffer assembly provides a cushioning effect to prevent blockage.
It effectively avoids auger blockage, ensures smooth grain discharge, ensures normal operation of the harvester, and automatically returns to its original position after the grain harvest is completed.
Smart Images
Figure CN224022363U_ABST
Abstract
Description
Technical Field
[0001] This utility model is an anti-clogging device for the auger at the grain outlet of a harvester. Background Technology
[0002] There are two main methods for feeding grain into the grain hopper of existing combine harvesters using the discharge nozzle auger. One method uses an upward-spraying system, where a rotating hood is installed at the discharge nozzle. When the grain hopper is full to the point of reaching the nozzle, the grain pushes the hood up, opening it and discharging the grain. However, in this system, due to the weight of the hood, the grain often cannot push it up during actual harvesting, causing grain accumulation. This obstructs the discharge nozzle auger, leading to blockage. The other method involves embedding the nozzle in the side wall of the grain hopper, horizontally ejecting the grain. This method is also prone to clogging the discharge nozzle auger, causing unnecessary problems. Utility Model Content:
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an anti-clogging device for the auger at the grain outlet of a harvester.
[0004] An anti-clogging device for the auger nozzle of a harvester includes a base, a rotating cover, a limiting plate, a buffer assembly, and springs. One end of the base is fixed to one side of the harvester's discharge nozzle. The rotating cover covers the upper side of the base, and the upper end of the rotating cover is hinged to the top of the base. The lower ends of both sides of the base are respectively connected to one end of a spring, and the other end of the spring is connected to the side of the rotating cover. The buffer assembly is used to buffer the downward movement of the rotating cover.
[0005] Furthermore, the buffer assembly includes a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged to one end of the second connecting rod, the other end of the second connecting rod is connected to the side of the rotating cover plate, and a tension spring is provided between the inner sides of the first connecting rod and the second connecting rod.
[0006] Furthermore, the base is a three-sided open dome-shaped structure.
[0007] Furthermore, the shape of the rotating cover plate matches the shape of the opening on the upper side of the base.
[0008] Furthermore, a limiting plate is provided at the center of the top of the base. The limiting plate has a V-shaped structure and is used to limit the rotation stroke of the rotating cover.
[0009] Furthermore, the rotating cover plate is connected to the top of the base via a hinge.
[0010] Beneficial effects: Compared with the prior art, the present invention has the following advantages: Attached Figure Description
[0011] Figure 1 This is a schematic diagram of an anti-clogging device for the auger nozzle of a harvester;
[0012] In the diagram, 1 is the base, 2 is the first connecting rod, 3 is the second connecting rod, 4 is the rotating cover plate, and 5 is the hinge. Detailed Implementation
[0013] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.
[0014] like Figure 1 As shown, the base is 1, the first connecting rod is 2, the second connecting rod is 3, the rotating cover is 4, and the hinge is 5.
[0015] An anti-clogging device for the auger nozzle of a harvester includes a base 1, a rotating cover 4, a limiting plate, a buffer assembly, and a spring. One end of the base 1 is fixed to one side of the harvester's discharge nozzle. The rotating cover 4 covers the upper side of the base 1, and the upper end of the rotating cover 4 is hinged to the top of the base 1. The lower ends of both sides of the base 1 are respectively connected to one end of a spring. The other end of the spring (not shown in the figure) is connected to the side of the rotating cover 4. The buffer assembly is used to buffer the falling action of the rotating cover 4.
[0016] In this example, the buffer assembly includes a first connecting rod 2 and a second connecting rod 3. One end of the first connecting rod 2 is hinged to one end of the second connecting rod 3, and the other end of the second connecting rod 3 is connected to the side of the rotating cover plate 4. A tension spring (not shown in the figure) is provided between the inner sides of the first connecting rod 2 and the second connecting rod 3. It should be noted that the first connecting rod 2, the second connecting rod 3, the rotating cover plate 4, and the base 1 together form a four-bar linkage, which links the movement of the rotating cover plate 4 with this four-bar linkage, thereby affecting the movement of the rotating cover plate 4 by influencing the movement of the four-bar linkage.
[0017] In this example, the base 1 is a three-sided open cover-shaped structure.
[0018] In this example, the shape of the rotating cover plate 4 matches the shape of the opening on the upper side of the base 1.
[0019] In this example, a limiting plate (not shown in the diagram) is provided at the center of the top of the base 1. The limiting plate has a V-shaped structure and is used to limit the rotation stroke of the rotating cover plate 4.
[0020] In this example, the rotating cover plate 4 is connected to the top of the base 1 via a hinge 5.
[0021] Working principle: When the harvester is full of grain but has not stopped harvesting, the grain in the grain tank is full to the grain outlet. Because the rotating cover 4 is light, as the grain continues to increase, the grain can easily push the rotating cover 4 upward slowly until it is completely opened. The limit plate prevents the rotating cover 4 from rotating too much.
[0022] The harvested grain is discharged smoothly through the opening on the upper side of the base 1, which effectively avoids clogging of the auger at the grain outlet of the harvester and ensures its normal operation. After the grain is harvested, the rotating cover 4 automatically closes back on the upper side of the base 1 under the action of the spring. At the same time, the tension spring between the first connecting rod 2 and the second connecting rod 3 can provide resistance to prevent the cover from falling, thus playing a buffering role.
[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A device for preventing auger blockage at the grain outlet nozzle of a harvester, characterized in that, The device includes a base, a rotating cover, a limiting plate, a buffer assembly, and a spring. One end of the base is fixed to the side of the harvester's grain outlet nozzle. The rotating cover covers the upper side of the base, and the upper end of the rotating cover is hinged to the top of the base. The lower ends of both sides of the base are respectively connected to one end of a spring, and the other end of the spring is connected to the side of the rotating cover. The buffer assembly is used to buffer the falling action of the rotating cover.
2. The anti-clogging device for the auger at the grain outlet of a harvester according to claim 1, characterized in that, The buffer assembly includes a first connecting rod and a second connecting rod. One end of the first connecting rod is hinged to one end of the second connecting rod, and the other end of the second connecting rod is connected to the side of the rotating cover plate. A tension spring is provided between the inner sides of the first connecting rod and the second connecting rod.
3. The auger anti-clogging device for the grain outlet nozzle of a harvester according to claim 1, characterized in that, The base is a three-sided open dome-shaped structure.
4. The anti-clogging device for the auger at the grain outlet of a harvester according to claim 1, characterized in that, The shape of the rotating cover plate matches the shape of the opening on the upper side of the base.
5. The anti-clogging device for the auger at the grain outlet of a harvester according to claim 1, characterized in that, The base has a limiting plate at the top center, which is a V-shaped structure and is used to limit the rotation stroke of the rotating cover.
6. The anti-clogging device for the auger at the grain outlet of a harvester according to claim 1, characterized in that, The rotating cover plate is connected to the top of the base via a hinge.