Part of combine harvester

Abstract

The utility model discloses a part of a combine harvester. Comprising a cleaning mechanism shell, a large foreign matter separating sieve, a cleaning sieve, a first strong wind spray head, a grass clippings collecting mechanism, a tail sieve, a second strong wind spray head, a grain receiving assembly, a first air pump, a first air pipe, a second air pump, a second air pipe, a threshing roller, a shaking plate, a collecting box, a driving motor, a transmission shaft, a sliding block, a limiting block, a roller, a grass clippings winding rod and the like. A cleaning mechanism shell accommodates all components to construct an overall framework, a cleaning sieve is matched with a first strong wind spray head to achieve preliminary separation of grain scraps, a grass scrap collecting mechanism completes grass scrap collection, a tail sieve and a second strong wind spray head conduct secondary purification, a grain receiving assembly collects pure grains, and a first air pump supplies air to the first strong wind spray head through a first air pipe to assist winnowing. The threshing cylinder and the shaking plate make early-stage preparation for cleaning, the driving motor supplies energy to the grass clippings collecting mechanism, all the components are connected cooperatively, it is guaranteed that the equipment operates stably, accurately and efficiently, and the grain cleanliness is improved in an all-around mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field especially is related to a combine harvester spare part. BACKGROUND

[0002] In the field of agricultural machinery, the combine harvester greatly improves the harvesting efficiency of crops, but there are still many problems in the cleaning link of the current combine harvester, the separation ability of the traditional cleaning mechanism to large foreign matters is limited, and larger straw, stone and the like are easy to enter the subsequent process, which not only damages the cleaning screen, tail screen and the like, but also affects the normal operation of the equipment, the separation effect is poor when the cleaning screen screens the grain and the chaff, resulting in that part of the chaff is mixed into the clean grain, and the purity and economic value of the grain are reduced, in terms of chaff collection, the collection mechanism of most existing equipment is inefficient, and the chaff is easy to accumulate in the equipment, which not only affects the operation stability of the equipment, but also increases the cleaning frequency during shutdown, and reduces the operation continuity, in addition, the energy utilization is not reasonable enough, and the energy consumption of the power components such as air pump is high, in order to solve these problems, it has important practical significance to develop a combine harvester cleaning mechanism spare part with optimized structure and high performance, which can improve the overall performance of the combine harvester and meet the demand of modern agricultural production for efficient and high-quality harvesting. SUMMARY

[0003] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0004] Therefore, the utility model aims at providing a combine harvester spare part, which can solve the problems of existing grain impurity removal and chaff collection.

[0005] To solve the above technical problems, the utility model provides a combine harvester spare part, adopts the following technical scheme: including a cleaning mechanism shell, a large foreign matter separation screen is arranged in the inside of the cleaning mechanism shell, a cleaning screen is arranged at the lower end of the large foreign matter separation screen, a first strong wind nozzle is arranged on one side of the cleaning screen, a chaff collection mechanism is arranged at the lower end of the cleaning screen;

[0006] The chaff collection mechanism comprises a collection box, a taking hole, a baffle, a driving motor, a sealing ring, a transmission shaft, a sliding block, a limiting block, a mounting hole, a sliding groove, a bolt, a chaff winding rod and a roller;

[0007] The lower end of the grass scrap collecting mechanism is provided with a tail screen, the lower end of the tail screen is provided with a grain receiving assembly, one side of the tail screen is provided with a second strong wind nozzle, and the rear end of the second strong wind nozzle is fixedly connected with a second air pipe and a second air pump.

[0008] Optionally, the inner wall of the cleaning mechanism shell is fixedly connected with a first air pump, the output end of the first air pump is fixedly connected with a first air pipe, and the front end of the first air pipe is fixedly connected with a first strong wind nozzle.

[0009] Through the above technical scheme: the first air pump supplies air to the first strong wind nozzle through the air pipe, assists the air selection of the cleaning screen, and enhances the grain and scrap separation effect.

[0010] Optionally, the upper end of the cleaning mechanism shell is provided with a threshing drum, and the lower end of the threshing drum is provided with a shaking plate.

[0011] Through the above technical scheme: the shaking plate preliminarily separates large-particle impurities after threshing, and prepares for cleaning in advance.

[0012] Optionally, the collecting box is located at the lower end of the cleaning screen, and the outer side of the collecting box is fixedly connected with a driving motor.

[0013] Through the above technical scheme: the driving motor supplies energy for the grass scrap collecting mechanism, and ensures that the grass scrap collecting is stably carried out.

[0014] Optionally, the output end of the driving motor is fixedly connected with a transmission shaft, and the outer surface of the transmission shaft is fixedly connected with a sliding block.

[0015] Through the above technical scheme: the driving motor drives the transmission shaft, and then makes the sliding block move, and lays the foundation for the transmission of the grass scrap collecting mechanism.

[0016] Optionally, the outer surface of the sliding block is slidably connected with a roller through a sliding groove, and the inside of the collecting box is rotatably connected with the transmission shaft through a sealing ring.

[0017] Through the above technical scheme: the sliding block and the roller are slidably connected, and the collecting box and the transmission shaft are rotatably connected, so as to ensure stable operation and sealing.

[0018] Optionally, the rear end of the sliding block is fixedly connected with a limiting block, and the front end of the limiting block is in close contact with the roller.

[0019] Through the above technical scheme: the limiting block limits the rotating position of the roller, and ensures that the grass scrap collecting mechanism operates accurately and reliably.

[0020] Optionally, the front end of the transmission shaft is provided with a threaded connection with a bolt, the end of the bolt is in close contact with the roller, and the outer surface of the roller is provided with a grass scrap winding rod.

[0021] Through the technical scheme, the transmission shaft is connected with the roller to stably transmit power, and the straw-winding rod realizes efficient collection of straw.

[0022] In summary, the utility model has at least one of the following beneficial effects:

[0023] 1. Improve the cleanliness of grains, and accurately separate straw and grains: when the straw collection mechanism processes the grain and straw mixture falling from the cleaning screen, the straw-winding rod is used to wind the straw, and the gravity of the grain and the screen structure are used to realize effective separation of the two, so that the straw is prevented from mixing with the grain again, and the cleanliness of the grain is further ensured.

[0024] 2. Optimize the straw collection efficiency, facilitate cleaning and maintenance, when the straw needs to be cleaned to a certain extent, the baffle is removed, and the roller and the straw-winding rod wrapped with straw are removed and cleaned by screwing the bolt, so that the operation is simple and fast, the maintenance time is shortened, and the availability of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating labor.

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 It is a schematic diagram of the straw collection mechanism of the utility model;

[0028] Figure 3 It is Figure 2 It is an enlarged schematic diagram of position A;

[0029] Figure 4 It is a schematic diagram of the straw-winding interior of the utility model.

[0030] The drawings are explained: 1, the cleaning mechanism shell; 2, the threshing drum; 3, the shaking plate; 4, the large foreign matter separation screen; 5, the cleaning screen; 6, the first strong wind nozzle; 7, the first air pipe; 8, the first air pump; 9, the straw collection mechanism; 10, the tail screen; 11, the grain receiving assembly; 12, the second strong wind nozzle; 13, the second air pipe; 14, the second air pump; 15, the taking hole; 16, the baffle; 17, the driving motor; 18, the sealing ring; 19, the transmission shaft; 20, the sliding block; 21, the limiting block; 22, the mounting hole; 23, the sliding groove; 24, the straw-winding rod; 25, the collection box; 26, the roller; 27, the bolt. DETAILED DESCRIPTION

[0031] This part will describe the specific embodiments of the present application in detail, the preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0032] Referring to Figures 1-4 , the utility model discloses a combine harvester parts, it includes cleaning mechanism shell 1, the inside of cleaning mechanism shell 1 is provided with big foreign matter separation screen 4, the lower end of big foreign matter separation screen 4 is provided with cleaning screen 5, one side of cleaning screen 5 is provided with first strong wind shower head 6, the inner wall of cleaning mechanism shell 1 is fixedly connected with first air pump 8, the output of first air pump 8 is fixedly connected with first air pipe 7, and the front end of first air pipe 7 is fixedly connected with first strong wind shower head 6, and the lower end of cleaning screen 5 is provided with grass clippings collection mechanism 9, and the upper end of cleaning mechanism shell 1 is provided with threshing cylinder 2, and the lower end of threshing cylinder 2 is provided with shaking plate 3.

[0033] Grass clippings collection mechanism 9 includes collection box 25, takes hole 15, baffle 16, drive motor 17, sealing ring 18, transmission shaft 19, sliding block 20, limit block 21, mounting hole 22, sliding slot 23, bolt 27, grass clippings winding rod 24 and roller 26, collection box 25 is located at the lower end of cleaning screen 5, the outside of collection box 25 is fixedly connected with drive motor 17, the output of drive motor 17 is fixedly connected with transmission shaft 19, the outer surface of transmission shaft 19 is fixedly connected with sliding block 20, the outer surface of sliding block 20 is slidably connected with roller 26 through sliding slot 23, the inside of collection box 25 is rotatably connected with transmission shaft 19 through sealing ring 18, the rear end of sliding block 20 is fixedly connected with limit block 21, the front end of limit block 21 is in close contact with roller 26, the front end of transmission shaft 19 is provided with bolt 27 and is in screw connection, and the end of bolt 27 is in close contact with roller 26, and the outer surface of roller 26 is provided with grass clippings winding rod 24.

[0034] The lower end of grass clippings collection mechanism 9 is provided with tail screen 10, the lower end of tail screen 10 is provided with grain receiving assembly 11, one side of tail screen 10 is provided with second strong wind shower head 12, and the rear end of second strong wind shower head 12 is fixedly connected with second air pipe 13 and second air pump 14.

[0035] Working principle: when the combine harvester starts operation, the cleaning process is started, and each structure works closely and cooperatively, and the grain and other materials fall from the threshing cylinder 2, are preliminarily shaken by the shaking plate 3, realize the preliminary separation of part of large-particle impurities and materials, then the materials enter the cleaning mechanism shell 1.

[0036] The large foreign matter separation screen 4 plays a role first, its larger screen hole can intercept straw, large stones and other large foreign matter, separate them out, avoid entering the subsequent process and affect the normal operation of the equipment, after screening by the large foreign matter separation screen 4, the material will fall on the cleaning screen 5, at this time, the first air pump 8 starts, and the first air pipe 7 supplies strong wind to the first strong wind nozzle 6, the strong wind blows out from the first strong wind nozzle 6 and acts on the material on the cleaning screen 5, because there are differences in mass and aerodynamic characteristics between chaff and grain, light impurities and chaff will be blown up, and heavier grains will remain on the cleaning screen 5 for further screening, but it needs to be clear that not only grains enter the chaff collection mechanism 9, but also chaff falls from the cleaning screen 5 and enters together with the grains.

[0037] The driving motor 17 is the power core of the operation of the chaff collection mechanism 9, because the output end of the driving motor 17 and the transmission shaft 19 are connected in a very close and stable way, and are rigidly connected by a high-strength coupling, so that the torque output by the motor can be transmitted to the transmission shaft 19 almost without loss, and the transmission shaft 19 starts to rotate stably and at high speed.

[0038] In the process of continuous rotation of the transmission shaft 19, the sliding block 20 fixedly connected to the outer surface of the transmission shaft 19 is driven to move in a circular motion, the outer surface of the sliding block 20 precisely slides with the sliding groove 23 designed on the roller 26, this cooperation not only ensures that the roller 26 can move along the predetermined track, but also allows it to rotate around its own axis under the driving of the transmission shaft 19, at the same time, the limiting block 21 fixedly connected to the rear end of the sliding block 20 is always closely attached to the roller 26, the limiting block 21 strictly limits the position of the roller 26 during rotation, prevents any displacement deviation, and ensures that the roller 26 always rotates smoothly and accurately around the axis of the transmission shaft 19.

[0039] The straw wrapping rod 24 on the outer surface of the roller 26 rotates, when the mixture of grains and straw passes, the straw is more easily wrapped and grabbed by the straw wrapping rod 24 due to its flexibility and lighter weight, and the grains are mostly separated from the straw through the screen holes or special channels under the influence of gravity and the screen structure, and continue to fall to the subsequent processing components. With the continuous rotation of the roller 26, the straw is continuously collected and wrapped on the straw wrapping rod 24, realizing the further separation of the straw and the grains in the straw collecting mechanism 9 and the straw collecting function. The material screened by the cleaning screen 5 continues to fall to the tail screen 10, the tail screen 10 further screens the material, the second air pump 14 provides strong wind for the second strong wind nozzle 12 through the second air pipe 13, and the remaining light impurities are blown away, further improving the cleanliness of the grains. Finally, the clean grains screened by the tail screen 10 fall into the grain receiving assembly 11 for collection. During operation, the operator needs to pay attention to the running state of the equipment at all times, check the straw collecting condition through the observation window, and prevent the collection box 25 from overflowing.

[0040] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made in terms of structure, shape and principle should be covered within the protection scope of the present application.

Claims

1. A component for a combine harvester, comprising a cleaning mechanism housing (1), characterized in that: The cleaning mechanism housing (1) is equipped with a large foreign matter separation screen (4) inside, and a cleaning screen (5) is provided at the lower end of the large foreign matter separation screen (4). A first strong wind nozzle (6) is provided on one side of the cleaning screen (5), and a grass clipping collection mechanism (9) is provided at the lower end of the cleaning screen (5). The grass clipping collection mechanism (9) includes a collection box (25), a pick-up hole (15), a baffle (16), a drive motor (17), a sealing ring (18), a transmission shaft (19), a slider (20), a limiting block (21), a mounting hole (22), a slide groove (23), a bolt (27), a grass clipping winding rod (24), and a roller (26); The lower end of the grass clipping collection mechanism (9) is provided with a tail screen (10), the lower end of the tail screen (10) is provided with a grain receiving assembly (11), and a second strong wind nozzle (12) is provided on one side of the tail screen (10). The rear end of the second strong wind nozzle (12) is fixedly connected to the second air pump (14) through a second air pipe (13).

2. A combine harvester component according to claim 1, characterized in that: The inner wall of the cleaning mechanism housing (1) is fixedly connected to a first air pump (8), the output end of the first air pump (8) is fixedly connected to a first air pipe (7), and the front end of the first air pipe (7) is fixedly connected to a first strong wind nozzle (6).

3. A combine harvester component according to claim 1, characterized in that: The upper end of the outer shell (1) of the cleaning mechanism is provided with a threshing drum (2), and the lower end of the threshing drum (2) is provided with a shaking plate (3).

4. A combine harvester component according to claim 1, characterized in that: The collection box (25) is located at the lower end of the cleaning screen (5), and the outer side of the collection box (25) is fixedly connected to the drive motor (17).

5. A combine harvester component according to claim 1, characterized in that: The output end of the drive motor (17) is fixedly connected to the transmission shaft (19), and the outer surface of the transmission shaft (19) is fixedly connected to the slider (20).

6. A combine harvester component according to claim 1, characterized in that: The outer surface of the slider (20) is slidably connected to the roller (26) through the groove (23), and the interior of the collection box (25) is rotatably connected to the drive shaft (19) through the sealing ring (18).

7. A combine harvester component according to claim 1, characterized in that: The rear end of the slider (20) is fixedly connected to the limiting block (21), and the front end of the limiting block (21) is in close contact with the roller (26).

8. A combine harvester component according to claim 1, characterized in that: The front end of the drive shaft (19) is threadedly connected to a bolt (27), the end of the bolt (27) is in close contact with the roller (26), and the outer surface of the roller (26) is provided with a grass clipping winding rod (24).

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