Cleaning and impurity discharging device of corn harvester
By setting up a reciprocating screen plate structure and a deflector on the corn harvester, and using a motor to drive the reciprocating movement and eccentric seat to adjust the screen plate stroke, the problem of incomplete cleaning and selection in the prior art is solved, and efficient recycling of corn grains and effective removal of impurities is achieved.
Patent Information
- Application Number
- CN202422304614.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-21
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-21
AI Technical Summary
The existing corn harvester cleaning and selection device has the problem of insufficient number of screen mesh, incomplete recovery of grains or too small number of screen mesh, resulting in incomplete selection and excessive mixing of grain boxes.
The reciprocating screen plate structure is adopted, and the reciprocating frame is driven by a motor to move left and right along the slide, and the screen plate stroke is adjusted in combination with the eccentric seat and swing arm to achieve two cleaning and selection. The screen plate and deflector of different mesh numbers are sorted to ensure thorough cleaning and selection.
It realizes efficient recycling of corn grains, reduces the miscellaneous remnants of the grain box, improves the cleaning effect, and ensures the sorting effect of screening.
Smart Images
Figure CN223053492U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a cleaning and debris removal device for a corn harvester, belonging to the technical field of corn harvesters. Background Art
[0002] A corn combine harvester is a large machine that integrates the functions of picking ears, peeling, collecting ears and returning stalks to the field. During the peeling process, the corn combine harvester usually peels off some corn kernels. In order to collect the peeled corn kernels, a cleaning and debris removal device is needed.
[0003] At present, the cleaning and impurity removal devices on large corn harvesters generally use a single-layer screen structure to recover corn kernels. The screen is limited by the structure of the whole machine, and the screen surface cannot be designed to be very long. When the screen mesh is large, the corn kernels wrapped in the husks cannot be separated and are discharged from the machine, resulting in incomplete cleaning and incomplete recovery. When the screen mesh is small, broken husks and impure corn stalks will enter the corn kernel box at the bottom, resulting in too much impurities in the kernel box.
[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content
[0005] In view of the deficiencies in the background technology, the utility model provides a corn harvester cleaning and debris removal device, which can perform cleaning through two reciprocating sieve plates arranged upper and lower, and can flexibly adjust the stroke of the reciprocating sieve plates to ensure that the sieve plates have a good sorting effect, ensure thorough cleaning, and reduce debris in the grain box.
[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0007] A corn harvester cleaning and debris removal device comprises a cleaning and debris removal box, a reciprocating frame which can move left and right is installed inside the cleaning and debris removal box, a roller is arranged at the bottom of the reciprocating frame, the roller is slidably arranged in a slideway, and the slideway is fixed to the inner wall of the cleaning and debris removal box along the horizontal direction;
[0008] Two sieve plates arranged up and down are fixedly installed inside the reciprocating frame, and the reciprocating frame is transmission-connected with the motor on the outer wall of the cleaning and impurity removal box. A support is fixedly installed on the side of the reciprocating frame close to the motor, and an eccentric seat is installed on the output shaft of the motor. The eccentric seat is connected to the support through a middle swing arm, and a plurality of eccentric holes are provided on the eccentric seat.
[0009] Furthermore, the cleaning and debris removal box is fixedly connected to the bottom of the peeling machine.
[0010] Furthermore, there are two slideways, the longitudinal cross-section of the slideway is a U-shaped structure, and the U-shaped openings of the two slideways are arranged facing each other.
[0011] Furthermore, both of the sieve plates are inclined, and the end of the sieve plate extends to the outside of the inner cavity of the cleaning and impurity removal box.
[0012] Furthermore, the mesh number of the lower sieve plate is greater than that of the upper sieve plate.
[0013] Furthermore, the swing arm is connected to both the eccentric seat and the support through pin shafts.
[0014] Furthermore, a first guide plate and a second guide plate are fixedly installed at the top of the inner cavity of the cleaning and impurity removal box, and both the first guide plate and the second guide plate are inclined.
[0015] Furthermore, a grain recovery hopper with a V-shaped structure is provided below the reciprocating frame. The bottom of the grain recovery hopper is connected with an inclined grain output pipe, and the grain recovery hopper is communicated with the inner cavity of the grain output pipe.
[0016] Furthermore, the bottom end of the grain output pipe extends to the outside of the inner cavity of the cleaning and impurity removal box, and a discharge port is provided at the bottom end of the grain output pipe.
[0017] Furthermore, the bottom of the grain output pipe is connected to the bottom wall of the cleaning and impurity removal box through a plurality of rib plates.
[0018] After the present utility model adopts the above technical solutions, compared with the prior art, it has the following advantages:
[0019] The motor drives the reciprocating frame to move left and right along the slideway through the swing arm. Two sieve plates arranged up and down in the reciprocating frame perform two-stage cleaning on the ear with grains and the miscellaneous corn stalks, ensuring thorough cleaning, reducing the residue in the grain box. The cleaned grains pass through the sieve plates and gather in the grain recovery hopper, and the cleaned ear leaves and miscellaneous corn stalks are discharged to the outside of the cleaning and impurity removal box through the ends of the sieve plates;
[0020] By providing different eccentric holes on the eccentric seat, the stroke of the reciprocating frame can be adjusted, and then the screening effect of the sieve plate can be adjusted to ensure that the sieve plate has a good sorting effect.
[0021] The present utility model will be described in detail below with reference to the drawings and embodiments. Description of the Drawings
[0022] Figure 1 is a schematic structural view of the present utility model;
[0023] Figure 2 is a driving schematic view of the reciprocating frame;
[0024] Figure 3 is a schematic structural view of the eccentric seat;
[0025] Figure 4 is a schematic structural view of the grain recovery hopper, the grain output pipe and the rib plates.
[0026] In the figure, 1 - cleaning and impurity - removing box, 2 - peeling machine, 3 - first deflector, 4 - second deflector, 5 - reciprocating frame, 6 - roller, 7 - slideway, 8 - sieve plate, 9 - support, 10 - swing arm, 11 - eccentric seat, 12 - motor, 13 - grain recovery hopper, 14 - grain output pipe, 15 - discharge opening, 16 - rib plate. Detailed implementation manners
[0027] For a clearer understanding of the technical features, objectives, and effects of the present utility model, the specific implementation manners of the present utility model will now be described with reference to the accompanying drawings.
[0028] As Figures 1-4 Collectively shown, the present utility model provides a cleaning and impurity - removing device for a corn harvester, including a cleaning and impurity - removing box 1, and the cleaning and impurity - removing box 1 is fixedly connected to the bottom of the peeling machine 2.
[0029] A reciprocating frame 5 that can move left and right is installed inside the cleaning and impurity - removing box 1. A roller 6 is provided at the bottom of the reciprocating frame 5, and the roller 6 is slidably arranged in a slideway 7. The slideway 7 is fixedly connected to the inner wall of the cleaning and impurity - removing box 1 along the horizontal direction.
[0030] The number of the slideways 7 is two. The longitudinal section of the slideway 7 is a U - shaped structure, and the U - shaped openings of the two slideways 7 are arranged facing each other.
[0031] Two sieve plates 8 arranged up and down are fixedly installed inside the reciprocating frame 5. The mesh number of the lower sieve plate 8 is greater than that of the upper sieve plate 8. Both sieve plates 8 are inclined, and the end of the sieve plate 8 extends outside the inner cavity of the cleaning and impurity - removing box 1.
[0032] The reciprocating frame 5 is in transmission connection with a motor 12 on the outer wall of the cleaning and impurity - removing box 1. A support 9 is fixedly installed on one side of the reciprocating frame 5 close to the motor 12. An eccentric seat 11 is installed on the output shaft of the motor 12. The eccentric seat 11 is connected to the support 9 through an intermediate swing arm 10. The swing arm 10 is connected to the eccentric seat 11 and the support 9 through pin shafts.
[0033] A plurality of eccentric holes are provided on the eccentric seat 11. Different eccentric holes can all be penetrated by a pin shaft and hinged to the end of the swing arm 10 to adjust the stroke of the reciprocating frame 5. When the stroke of the reciprocating frame 5 is too large, it will cause excessive vibration of the sieve plate 8, thus affecting the screening effect. When the stroke of the reciprocating frame 5 is too small, it will cause the material to not pass through the sieve plate 8 smoothly, reducing the screening efficiency. By adjusting the stroke of the reciprocating frame 5, a good sorting effect of the sieve plate 8 is ensured.
[0034] At the top of the inner cavity of the cleaning and impurity-removing box 1, a first diversion plate 3 and a second diversion plate 4 are fixedly installed. Both the first diversion plate 3 and the second diversion plate 4 are inclined. The first diversion plate 3 and the second diversion plate 4 cooperate to guide the husked ears with grains and the miscellaneous corn stalks to the initial end of the upper sieve plate 8.
[0035] Below the reciprocating frame 5, a V-shaped grain recovery hopper 13 is provided. The bottom of the grain recovery hopper 13 is connected with an inclined grain output pipe 14. The inner cavities of the grain recovery hopper 13 and the grain output pipe 14 are connected and communicated.
[0036] The bottom end of the grain output pipe 14 extends to the outside of the inner cavity of the cleaning and impurity-removing box 1. A discharge port 15 is provided at the bottom end of the grain output pipe 14, and the grains can be discharged under the action of gravity.
[0037] The bottom of the grain output pipe 14 is connected with the bottom wall of the cleaning and impurity-removing box 1 through a plurality of rib plates 16, and the rib plates 16 fixedly support the grain output pipe 14.
[0038] The specific working principle of the present utility model:
[0039] The peeling machine 2 peels the corn. The husked ears with grains and the miscellaneous corn stalks are guided to the initial end of the upper sieve plate 8 under the cooperation of the first diversion plate 3 and the second diversion plate 4. At the same time, the motor 12 drives the reciprocating frame 5 to move left and right along the slideway 7 through the swing arm 10. The two sieve plates 8 arranged up and down in the reciprocating frame 5 perform two-stage cleaning on the husked ears with grains and the miscellaneous corn stalks to ensure thorough cleaning. The cleaned grains pass through the sieve plate 8 and gather in the grain recovery hopper 13, and finally are led out by the grain output pipe 14. The cleaned husks and miscellaneous corn stalks are discharged to the outside of the cleaning and impurity-removing box 1 through the end of the sieve plate 8.
[0040] The above is an example of the best implementation mode of the present utility model. The parts not described in detail are all common general knowledge of those skilled in the art. The protection scope of the present utility model is subject to the content of the claims. Any equivalent transformation based on the technical inspiration of the present utility model is also within the protection scope of the present utility model.
Claims
1. A cleaning and impurity removal device for a corn harvester, characterized in that: The cleaning and debris removal box (1) comprises a reciprocating frame (5) which can move left and right, and a roller (6) is provided at the bottom of the reciprocating frame (5). The roller (6) is slidably arranged in a slideway (7), and the slideway (7) is fixedly connected to the inner wall of the cleaning and debris removal box (1) in the horizontal direction. Two sieve plates (8) arranged vertically are fixedly installed inside the reciprocating frame (5). The reciprocating frame (5) is connected to a motor (12) on the outer wall of the cleaning and impurity removal box (1) in a transmission manner. A support (9) is fixedly installed on one side of the reciprocating frame (5) close to the motor (12). An eccentric seat (11) is installed on the output shaft of the motor (12). The eccentric seat (11) is connected to the support (9) via a swing arm (10) in the middle. The eccentric seat (11) is provided with a plurality of eccentric holes.
2. The cleaning and impurity removal device of a corn harvester according to claim 1, characterized in that: The cleaning and impurity removal box (1) is fixedly connected to the bottom of the peeling machine (2).
3. The cleaning and impurity removal device of a corn harvester according to claim 1, characterized in that: The number of the slideways (7) is two, the longitudinal cross-section of the slideway (7) is a U-shaped structure, and the U-shaped openings of the two slideways (7) are arranged facing each other.
4. The cleaning and impurity removal device of a corn harvester according to claim 1, characterized in that: The two sieve plates (8) are both arranged in an inclined manner, and the ends of the sieve plates (8) extend to the outside of the inner cavity of the cleaning and impurity removal box (1).
5. The cleaning and impurity removal device of a corn harvester according to claim 1, characterized in that: The mesh number of the lower sieve plate (8) is greater than the mesh number of the upper sieve plate (8).
6. The cleaning and impurity removal device of a corn harvester according to claim 1, characterized in that: The swing arm (10), the eccentric seat (11) and the support (9) are all connected via a pin.
7. The cleaning and impurity removal device of a corn harvester according to claim 1, characterized in that: A first guide plate (3) and a second guide plate (4) are fixedly mounted on the top of the inner cavity of the cleaning and impurity removal box (1); the first guide plate (3) and the second guide plate (4) are both arranged in an inclined manner.
8. The cleaning and impurity removal device of a corn harvester according to claim 1, characterized in that: A V-shaped grain recovery bucket (13) is provided below the reciprocating frame (5); the bottom of the grain recovery bucket (13) is connected to an inclined grain output pipe (14); the grain recovery bucket (13) is in communication with the inner cavity of the grain output pipe (14).
9. The cleaning and impurity removal device of a corn harvester according to claim 8, characterized in that: The bottom end of the grain output pipe (14) extends to the outside of the inner cavity of the cleaning and impurity removal box (1), and a discharge port (15) is provided at the bottom end of the grain output pipe (14).
10. The cleaning and impurity removal device of a corn harvester according to claim 9, characterized in that: The bottom of the grain output pipe (14) is connected to the bottom wall of the cleaning and impurity removal box (1) via a plurality of rib plates (16).