Integrated fan capable of discharging impurities in two directions

Abstract

The utility model relates to the technical field of agricultural machinery, and discloses an integrated fan capable of discharging impurities in two directions, which comprises a fan outer cover arranged on a corn harvester and corresponding to a header; the two negative pressure cavities are arranged on the fan outer cover, and air outlets are communicated with the negative pressure cavities; the fan blades are arranged in the negative pressure cavity; when the fan blades rotate, a negative pressure cavity is formed in the fan outer cover, the negative pressure cavity enables impurities in the cavity to be rapidly discharged through the air outlet connected with the negative pressure cavity, and therefore suction and discharge of light impurities such as straw and blades are achieved. The efficient and instant impurity discharging effect is achieved through the two ventilation openings, the header is effectively prevented from being blocked due to impurity accumulation, the problem of operation interruption caused by manual impurity removal due to shutdown of equipment is solved, potential safety hazards to a user are avoided, meanwhile, impurities are prevented from entering a grain collecting box, and inconvenience is reduced for subsequent storage.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically to an integrated fan for bidirectional waste removal. Background Technology

[0002] With the continuous advancement of agricultural mechanization, corn harvesters have become one of the important pieces of equipment in modern agricultural production. Corn is one of the most widely planted and highest-yielding grain crops globally, and its harvesting process is complex, involving multiple stages such as cutting, conveying, threshing, and removing impurities. To meet the needs of large-scale production, various types of corn harvesters have been gradually developed and put into use. These machines have significantly improved harvesting efficiency and reduced manual labor intensity through mechanized operations, becoming powerful tools for farmers in autumn operations. However, the growing environment of corn plants is usually accompanied by a large amount of straw, leaves, and other debris, which adds certain difficulties to mechanized harvesting.

[0003] Traditional two-row corn harvesters often lack dedicated dust and debris removal devices, leading to the accumulation of stalks, leaves, and other impurities on the header or into the grain collection bin. This accumulation not only increases the harvester's workload and reduces its efficiency but also severely impacts the quality of subsequent grain processing and storage. Furthermore, the buildup of impurities can clog the header, forcing frequent shutdowns for cleaning. This not only increases the labor intensity for farmers but also delays the harvest process, causing significant inconvenience, especially during high-intensity harvesting or tight harvest seasons. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides an integrated fan with bidirectional impurity discharge, which aims to alleviate the above problems to at least a certain extent.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] An integrated fan with bidirectional exhaust, comprising:

[0007] The fan cover is installed on the corn harvester, corresponding to the header;

[0008] Two negative pressure chambers are provided on the outer casing of the fan, and air outlets are connected to the negative pressure chambers;

[0009] The fan blades are located within the negative pressure chamber;

[0010] A drive component located between the fan casing and the fan blades is used to connect the cutting table drive shaft to provide driving force for the rotation of the fan blades;

[0011] An adjustment component located between the fan casing and the drive component is used to adjust the position of the drive component to adapt to the position of the cutting table drive shaft.

[0012] Preferably, the driving component comprises a connecting cover arranged on the fan cover, the connecting cover is provided with a spline shaft, the spline shaft is provided with a bevel gear which is engaged with one of the fan blade driving shafts.

[0013] Preferably, the driving component further comprises a chain wheel a arranged on the two fan blade driving shafts, and a belt is arranged between the two chain wheels a.

[0014] Preferably, the driving component further comprises a spline arranged on the spline shaft, and a spline is arranged on the header driving shaft of the corn harvester, and a chain is arranged between the two splines.

[0015] Preferably, the connecting cover is provided with a frame, and the frame is provided with two bearings.

[0016] The spline shaft comprises a transmission shaft connected to one of the bearings, the transmission shaft is connected to the inner ring of the bearing, one of the bevel gears is connected to the transmission shaft, a connecting rod b is slidingly connected to the transmission shaft, the connecting rod b is slidingly connected to the inner ring of the other bearing, and the chain wheel a is connected to the connecting rod b.

[0017] Preferably, the adjusting component comprises a lead screw which is rotationally connected to the connecting cover, the lead screw extends into the frame, a sliding block is threadedly connected to the lead screw, a connecting block is rotationally connected to the connecting rod b, a push rod is rotationally connected between the sliding block and the connecting block, and a spring is arranged between the transmission shaft and the connecting rod b.

[0018] In summary, the utility model mainly has the following beneficial effects:

[0019] By setting the driving part, the fan blade in the negative pressure cavity is powered by the cutting table driving shaft, and the rotation movement of the cutting table driving shaft is transmitted to the fan blade through the driving part, so that the fan blade keeps efficient operation and synchronizes with the harvesting operation, ensuring that the cleaning process of impurities does not affect the normal harvesting of corn. The fan cover is installed above the cutting table of the corn harvester, and the driving part drives the negative pressure cavity formed in the fan cover when the fan blade rotates. The impurities in the cavity can be quickly discharged through the connected air outlet, so that the suction and exclusion of light impurities such as straw and leaves are realized. Through the two air vents, the impurities are effectively and instantaneously discharged, effectively avoiding the blockage of the cutting table due to the accumulation of impurities, reducing the operation interruption problem caused by manual impurity removal during equipment downtime, avoiding safety hazards to users, and preventing impurities from entering the grain collecting box, thereby reducing the inconvenience of subsequent storage. The position of the driving part is adjusted by the adjusting part to adapt to the actual position of the cutting table driving shaft, so as to avoid affecting the transmission efficiency due to misalignment of the cutting table driving shaft and the driving part, thereby realizing the stable linkage of the fan blade and the cutting table. Through optimization of the airflow path and transmission connection, the overall structure not only ensures the efficiency of impurity cleaning, but also reduces the labor intensity and safety risk of manual cleaning, improves the operation efficiency and stability of the corn harvester, and provides users with a safe and efficient operation experience. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the overall structure schematic diagram of the utility model;

[0021] Figure 2 is the fan cover structure schematic diagram of the utility model;

[0022] Figure 3 is the connecting cover structure schematic diagram of the utility model;

[0023] Figure 4 is the adjusting part structure schematic diagram of the utility model;

[0024] Figure 5 is the spline shaft structure schematic diagram of the utility model.

[0025] REFERENCE SIGNS:

[0026] 100, fan cover; 101, negative pressure cavity; 102, air outlet; 103, fan blade;

[0027] 200, connecting cover; 201, spline shaft; 202, bevel gear; 203, belt pulley; 204, belt; 205, spline; 206, frame; 207, bearing; 208, transmission shaft; 209, connecting rod b;

[0028] 300, lead screw; 301, sliding block; 302, connecting block; 303, push rod; 304, spring. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] Reference Figures 1-5 A two-way impurity removal integrated fan, comprising:

[0031] The fan cover 100 is arranged on the corn harvester and corresponds to the header;

[0032] Two negative pressure cavities 101 are arranged on the fan cover 100, and the negative pressure cavity 101 is communicated with an air outlet 102;

[0033] The fan blade 103 is arranged in the negative pressure cavity 101;

[0034] The driving component is arranged between the fan cover 100 and the fan blade 103, and is used for connecting the driving shaft of the header to provide driving force for the rotation of the fan blade 103;

[0035] The adjusting component is arranged between the fan cover 100 and the driving component, and is used for adjusting the position of the driving component to adapt to the position of the driving shaft of the header;

[0036] By arranging the driving component, the fan blade 103 in the negative pressure cavity 101 is powered by the driving shaft of the header, the rotational motion of the driving shaft of the header is transmitted to the fan blade 103 through the driving component, the fan blade 103 keeps high-efficiency operation, and the cleaning process of impurities does not affect the normal harvesting of corn. The fan cover 100 is installed above the header of the corn harvester, the driving component drives the negative pressure cavity 101 to be formed in the fan cover 100 when the fan blade 103 rotates, the impurities in the cavity can be quickly discharged through the connected air outlet 102, so that the light impurities such as straw and leaves are inhaled and removed. The two air vents realize efficient and instantaneous impurity removal effect, effectively avoid the header from being blocked due to impurity accumulation, reduce the operation interruption problem caused by manual impurity removal due to equipment shutdown, avoid safety hazards for users, prevent impurities from entering the grain collecting box, and reduce inconvenience for subsequent storage. The position of the driving component is adjusted by the adjusting component to adapt to the actual position of the driving shaft of the header, so that the transmission efficiency is not affected due to misalignment between the driving shaft of the header and the driving component, and stable linkage between the fan blade 103 and the header is realized. The overall structure optimizes the airflow path and transmission connection, ensures the efficiency of impurity cleaning, reduces the labor intensity and safety risk of manual cleaning, improves the operation efficiency and stability of the corn harvester, and provides safe and efficient operation experience for users.

[0037] As a further aspect of the present application, the driving component comprises a connecting cover 200 arranged on the fan cover 100, the connecting cover 200 is provided with a spline shaft 201, the spline shaft 201 and the bevel gear 202 arranged on the driving shaft of one of the fan blades 103 are provided with intermeshing bevel gears 202 respectively;

[0038] By arranging the connecting cover 200 and the spline shaft 201 thereon, the spline shaft 201 and the bevel gear 202 arranged on the driving shaft of the fan blade 103 intermesh, the driving component can effectively transmit the power of the header driving shaft to the driving shaft of the fan blade 103, so that the fan blade 103 can rotate stably. The design of the bevel gear 202 can ensure the efficiency and stability of power transmission, and through precise gear meshing, the problem of power loss or unstable operation caused by inaccurate transmission is avoided. In this way, not only can the fan blade 103 operate continuously and efficiently, but also the synchronous operation of the fan system and the header can be ensured, and the effect of impurity removal is more efficient. Under the synergistic effect of the driving system, the rotation of the fan blade 103 can effectively remove the impurities generated during the harvesting process, avoid the header blockage, reduce the frequency and difficulty of manual cleaning, and improve the operation efficiency and stability of the corn harvester.

[0039] As a further aspect of the present application, the driving component further comprises a belt pulley 203 arranged on the driving shaft of the two fan blades 103, and a belt 204 is arranged between the two belt pulleys 203;

[0040] By arranging the belt pulley 203 and the belt 204, the driving component can further transmit power to the driving shafts of the two fan blades 103, realizing the synchronous rotation of the two fan blades 103. The combined design of the belt pulley 203 and the belt 204 effectively ensures the operation coordination of the two fan blades 103, so that they can work simultaneously, ensuring that the fan system can continuously and efficiently remove impurities. The use of the belt 204 not only improves the stability of power transmission, but also reduces friction and wear during transmission, thereby improving the durability and working efficiency of the system. In addition, the structural design of the belt pulley 203 and the belt 204 makes the driving component more compact, effectively saving space, and also enhances the reliability of the system. Under the cooperation of this driving system, the fan can quickly discharge the straw and blade impurities on the header, avoiding the risk of equipment blockage and downtime, and providing farmers with a more efficient and safer operation experience.

[0041] As a further aspect of the present application, the driving component further comprises a spline 205 arranged on the spline shaft 201, and a spline 205 is also arranged on the header driving shaft of the corn harvester, and a chain is arranged between the two splines 205;

[0042] By setting the spline 205 on the spline shaft 201 and the spline 205 on the corn harvester header drive shaft, the two splines 205 are connected by a chain, and the driving part can effectively transmit the power of the header drive shaft to the spline shaft 201, and further drive the rotation of the fan blades 103. The design of the chain ensures the stability and synchronization of power transmission, so that the two fan blades 103 can work cooperatively and continuously and efficiently remove the impurities such as straw and leaves generated during the harvesting process.

[0043] As a further of the utility model further, the connecting cover 200 is equipped with frame 206, frame 206 is equipped with two bearings 207;

[0044] The spline shaft 201 includes a transmission shaft 208 connected to one of the bearings 207, the transmission shaft 208 is connected to the inner ring of the bearing 207, one bevel gear 202 is connected to the transmission shaft 208, a connecting rod b 209 is slidably connected to the transmission shaft 208, the connecting rod b 209 is slidably connected to the inner ring of the other bearing 207, and a belt pulley 203 is connected to the connecting rod b 209.

[0045] By setting the frame 206 on the connecting cover 200 and the two bearings 207 provided on the frame 206, the spline shaft 201 is stably supported, and the vibration and wear during operation are reduced. The spline shaft 201 includes a transmission shaft 208 connected to one of the bearings 207, the transmission shaft 208 is connected to the inner ring of the bearing 207, which ensures that the power transmission is more stable.

[0046] As a further of the utility model further, the adjusting part includes a lead screw 300 rotatably connected to the connecting cover 200, the lead screw 300 extends into the frame 206, a sliding block 301 is threadedly connected to the lead screw 300, a connecting block 302 is rotatably connected to the connecting rod b 209, a push rod 303 is rotatably connected between the sliding block 301 and the connecting block 302, and a spring 304 is arranged between the transmission shaft 208 and the connecting rod b 209.

[0047] By setting the lead screw 300, rotating the lead screw 300, the slider 301 on the lead screw 300 can move axially along the lead screw 300, thereby driving the movement of the push rod 303. The push rod 303 is connected with the slider 301 and the connecting block 302, and drives the movement of the connecting block 302 and the connecting rod b209. In this way, the position of the connecting rod b209 and the spline 205 on the connecting rod b209 is adjusted, so as to accurately butt joint with the spline 205 on the header, and ensure the effective transmission of power. The adjustment function can accurately adjust the relative position of the spline 205 according to the actual position of the header drive shaft, ensure the cooperation of the driving part and the header drive shaft more accurate, and avoid unstable transmission or efficiency decline caused by improper position. Through the adjustment mechanism, the whole driving system can be fine-tuned according to the actual work requirement, further optimize the working effect of the fan, improve the synchronism and stability of the fan blade 103, and ensure that the corn harvester can maintain high efficiency in removing impurities under various working environments.

[0048] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A two-way integrated fan filter unit, comprising: include: The fan cover (100) is installed on the corn harvester, corresponding to the header; Two negative pressure chambers (101) are provided on the outer casing (100) of the fan, and an air outlet (102) is connected to the negative pressure chamber (101). Fan blade (103) is installed inside the negative pressure chamber (101). A drive component located between the fan casing (100) and the fan blade (103) is used to connect the cutting table drive shaft to provide driving force for the rotation of the fan blade (103); An adjustment component is provided between the fan casing (100) and the drive component to adjust the position of the drive component to adapt to the position of the cutting table drive shaft.

2. A one-piece fan with bidirectional impurity removal according to claim 1, characterized in that, The drive component includes a connecting cover (200) disposed on the fan casing (100), the connecting cover (200) is provided with a spline shaft (201), and the spline shaft (201) and one of the fan blades (103) drive shafts are respectively provided with bevel gears (202) meshing with each other.

3. A one-piece fan with bidirectional impurity removal according to claim 2, characterized in that, The drive component also includes pulleys (203) on the drive shafts of the two fan blades (103), and a belt (204) is provided between the two pulleys (203).

4. The integrated bidirectional impurity removal fan of claim 2, wherein, The drive component also includes a spline (205) on the spline shaft (201), and a spline (205) is also provided on the header drive shaft of the corn harvester. A chain is provided between the two splines (205).

5. The integrated bidirectional tramp removal fan of claim 3, wherein, The connecting cover (200) is provided with a frame (206), and the frame (206) is provided with two bearings (207). The spline shaft (201) includes a drive shaft (208) connected to one of the bearings (207), the drive shaft (208) being connected to the inner ring of the bearing (207), one of the bevel gears (202) being connected to the drive shaft (208), a connecting rod b (209) being slidably connected to the drive shaft (208), the connecting rod b (209) being slidably connected to the inner ring of the other bearing (207), and a pulley (203) being connected to the connecting rod b (209).

6. A one-piece fan with bidirectional impurity removal according to claim 5, characterized in that, The adjusting component includes a lead screw (300) rotatably connected to the connecting cover (200), the lead screw (300) extending into the frame (206), a slider (301) threadedly connected to the lead screw (300), a connecting block (302) rotatably connected to the connecting rod b (209), a push rod (303) rotatably connected between the slider (301) and the connecting block (302), and a spring (304) provided between the transmission shaft (208) and the connecting rod b (209).

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