Transmission structure of corn harvester

Abstract

The utility model relates to the technical field of harvesters, and discloses a transmission structure of a corn harvester, which comprises a rack, a cutting table is arranged on the rack, and a fan is arranged on the cutting table; the corn harvester has the technical effects that the power transmission mode of a single shaft in a traditional corn harvester is improved, the rotating shaft structure is combined with the chain wheel, the bearing and the gear transmission mechanism, and more efficient and stable power transmission is achieved. The power load is distributed to a plurality of components, so that the problem of breakage or damage caused by overlarge pressure loaded by a single bearing is avoided, and the stability and durability of equipment under the high-load condition are ensured. Due to the design of the rotating shaft, power can be directly transmitted to operation components such as the peeling shaft and the field returning knife, so that the power transmission efficiency is improved, and the energy loss is reduced. In addition, through combination of chain transmission and gear transmission, operation among all components is more accurate and smoother, and the overall working efficiency and the reliability of equipment are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a harvester technical field, concretely relates to a transmission structure of corn harvester. BACKGROUND

[0002] With the continuous development of agricultural mechanization, corn harvester as important agricultural equipment, has become the indispensable tool in modern agriculture, is widely used in corn harvesting, threshing and post-processing and multiple links.Such as, with the continuous expansion of agricultural production scale, the operation efficiency and reliability of corn harvester have become the key factors to improve productivity and reduce labor costs.Traditional corn harvester mostly adopts single shaft power transmission, and this structure is simple, but there is certain limitation in practical application.Single shaft carries greater pressure in the process of power transmission, especially in the case of high load or long time operation, bearing may appear excessive wear, and even lead to fracture or damage.Unstable power transmission not only affects the normal operation of the harvester, but also may cause machine downtime, thereby reducing the operation efficiency and increasing the maintenance cost.

[0003] In addition, single shaft transmission mode also causes power loss and mechanical wear and tear problems, especially in various operating environments and different crop processing conditions, the adaptability of this transmission structure is poor, unnecessary energy waste is easy to produce, and then the overall performance and economic benefit of the machine are affected.With the continuous improvement of the precision and efficiency requirements of corn harvesting operation, the single shaft transmission structure in the prior art gradually does not meet the needs of modern agricultural production, which makes the traditional design face more and more challenges in performance and reliability.In order to solve these problems, improve the working efficiency of corn harvester and prolong the service life of equipment, a more stable and effective power transmission structure is urgently needed. UTILITY MODEL CONTENT

[0004] In view of the defects in the prior art, the utility model provides a transmission structure of corn harvester, which aims to at least alleviate the above problems to some extent.

[0005] The above technical purpose of the utility model is realized by the following technical scheme:

[0006] A transmission structure of corn harvester, comprising:

[0007] A rack is provided with a header, and the header is provided with a fan;

[0008] A hay chain is arranged on the header, a stalk roller is arranged on the header, and a guide cone is connected to the stalk roller;

[0009] A support is arranged on one side of the header, and a plurality of skinning shafts are rotatably connected to the support;

[0010] A plurality of poking shafts are arranged on the support, and a plurality of poking pieces are arranged on the poking shafts.

[0011] A driving shaft is arranged on the frame, and a rotating shaft is also arranged on the frame.

[0012] A reversing box is arranged on the frame.

[0013] A transmission component a is arranged in the reversing box, and is used for driving the poking chain, the guide cone and the stalk pulling roller to rotate.

[0014] A transmission component b is arranged between the driving shaft, the rotating shaft and the reversing box, and is used for driving the transmission component a on the reversing box to drive the poking chain, the guide cone and the stalk pulling roller to rotate when the driving shaft rotates.

[0015] Preferably, the bottom of the cutting table is connected with a mounting frame, a residue field blade is arranged on the mounting frame, and the transmission component a can also drive the residue field blade to rotate.

[0016] Preferably, the transmission component a comprises a transmission box connected to the reversing box, a transmission shaft a is arranged in the transmission box, two poking shafts are arranged on the transmission box, the poking chain is sleeved on the poking shafts, and a gear transmission mechanism a is arranged between the poking shafts and the transmission shaft a.

[0017] Preferably, the transmission component a further comprises two transmission shafts b rotatably connected to the reversing box, a gear transmission mechanism b is arranged between the two transmission shafts b, a chain is arranged between one of the transmission shafts b and the shaft of the residue field blade, and a chain is also arranged between the other transmission shaft b and the transmission shaft a.

[0018] Preferably, the transmission component a further comprises a transmission shaft c connected to the transmission box, a gear transmission mechanism c is arranged between the transmission shaft c and the transmission shaft a, the stalk pulling roller is connected to the transmission shaft c, a transmission shaft d is rotatably connected to the transmission box, a gear transmission mechanism d is arranged between the transmission shaft d and the transmission shaft a, and the peeling shaft is connected to the transmission shaft d.

[0019] Preferably, one side of the transmission shaft a is connected with a transmission shaft e, and a chain is also arranged between the transmission shaft e and the poking shaft.

[0020] Preferably, the transmission component b comprises a sprocket a connected to the driving shaft and the rotating shaft, a chain is also arranged between the sprockets on the driving shaft and the rotating shaft, the transmission shaft a and the rotating shaft are respectively provided with a sprocket b, and a chain is also arranged between the two sprockets b.

[0021] Preferably, a bushing is connected to the frame, a bearing is provided inside the bushing, and the rotating shaft extends into the bushing and is connected to the inner ring of the bearing.

[0022] In summary, the present invention has the following main advantages:

[0023] The technical advantage of this application lies in improving the power transmission method of a single shaft in traditional corn harvesters. By adopting a rotating shaft structure combined with a sprocket, bearing, and gear transmission mechanism, more efficient and stable power transmission is achieved. By distributing the power load across multiple components, the problem of breakage or damage caused by excessive pressure on a single bearing is avoided, ensuring the stability and durability of the equipment under high load conditions. The rotating shaft design allows power to be directly transmitted to working components such as the peeling shaft and the reaming blade, thereby improving power transmission efficiency and reducing energy loss. Furthermore, the combination of chain and gear transmission makes the operation between components more precise and smooth, improving overall work efficiency and equipment reliability.

[0024] Furthermore, the inclusion of bearings and bushings effectively supports the rotating shaft, reducing friction and improving the long-term operational capability of the equipment. This structural design not only alleviates the burden on traditional single-shaft structures but also reduces mechanical wear and failure rates, extending the equipment's service life. Therefore, this invention, by optimizing the power transmission system, solves the problems of unstable power transmission and damage under high loads in traditional corn harvesters, significantly improving harvesting efficiency and overall equipment reliability. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the frame structure of this utility model;

[0027] Figure 3 This is another schematic diagram of the frame structure of this utility model;

[0028] Figure 4 This is a schematic diagram of the rotating shaft structure of this utility model;

[0029] Figure 5 This is a schematic diagram of the cutting platform structure of this utility model;

[0030] Figure 6 This is another schematic diagram of the cutting platform structure of this utility model;

[0031] Figure 7 This is a schematic diagram of the transmission box structure of this utility model;

[0032] Figure 8 This is a schematic diagram of the transmission shaft a structure of this utility model;

[0033] Figure 9 This is a schematic diagram of the reversing box structure of this utility model.

[0034] Figure label:

[0035] 100. Frame; 101. Header; 102. Fan; 103. Reeling chain; 104. Stalk puller roller; 105. Guide cone; 106. Support; 107. Peeling shaft; 108. Actuating shaft; 109. Paddle; 110. Drive shaft; 111. Rotating shaft; 112. Reversing box;

[0036] 200. Transmission box; 201. Drive shaft a; 202. Reel shaft; 203. Gear transmission mechanism a; 204. Drive shaft b; 205. Gear transmission mechanism b; 206. Drive shaft c; 207. Gear transmission mechanism c; 208. Drive shaft d; 209. Gear transmission mechanism d; 210. Drive shaft e;

[0037] 300, sprocket a; 301, sprocket b; 302, bushing; 303, bearing;

[0038] 400. Mounting bracket; 401. Field-returning blade. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] refer to Figures 1-9 A transmission structure for a corn harvester, comprising:

[0041] A frame 100 is provided, a cutting table 101 is provided on the frame 100, and a fan 102 is provided on the cutting table 101;

[0042] A stalk-pulling chain 103 is provided on the header 101, and a stalk-pulling roller 104 is provided on the header 101, with a guide cone 105 connected to the stalk-pulling roller 104;

[0043] A bracket 106 is provided on one side of the cutting table 101, and multiple peeling shafts 107 are rotatably connected to the bracket 106;

[0044] Multiple actuating shafts 108 are mounted on the bracket 106, and multiple levers 109 are mounted on the actuating shafts 108;

[0045] A drive shaft 110 is provided on the frame 100, and a rotating shaft 111 is also provided on the frame 100;

[0046] Reversing box 112 is mounted on frame 100;

[0047] The transmission component a, located in the reversing box 112, is used to drive the rotation of the reeling chain 103, the guide cone 105 and the stalk pulling roller 104.

[0048] A transmission component b is provided between the drive shaft 110, the rotating shaft 111 and the reversing box 112, and is used to drive the reeling chain 103, the guide cone 105 and the stalk pulling roller 104 to rotate through the rotating shaft 111 when the drive shaft 110 rotates.

[0049] The working principle of this device is to complete the harvesting and processing of crops through a series of cooperating components. First, the drive shaft 110 starts and drives the rotating shaft 111 to rotate. The rotating shaft 111 is connected to the transmission component b between the reversing box 112 and the rotating box 111. When the rotating shaft 111 rotates, the rotational motion of the drive shaft 110 is transmitted to the transmission component a in the reversing box 112 through the transmission component b, which in turn drives the reeling chain 103, the guide cone 105, and the stem-pulling roller 104 to rotate. The reeling chain 103 moves on the header 101, playing a role in reeling and cutting the crop. The guide cone 105 guides the crop forward, while the stem-pulling roller 104 helps to pull the stem and keep the crop stable. Multiple peeling shafts 107 on the support 106 cooperate through rotation to further process the outer skin of the crop. Multiple paddles 109 on the agitator shaft 108 complete the agitation action under the drive of the reeling chain 103 and other transmission components to ensure effective processing of the crop. This device achieves efficient harvesting and processing of crops through a series of precisely coordinated transmission systems and mechanical components. The synergistic effect of these components ensures minimal damage to crops during harvesting, while simultaneously improving operational efficiency. The design of the guide cone 105 and the stem-pulling roller 104 allows for a smooth transition of crops, preventing work interruptions due to jamming. The coordination of the reeling chain 103 and the reeling blades 109 effectively improves the precision of crop separation and processing, adapting to the processing needs of different crops. The structural design of the reversing box 112 and the transmission system also makes the operation of the entire device more stable, reducing the probability of malfunctions and extending the service life of the equipment.

[0050] As a further part of this utility model, the bottom of the cutting table 101 is connected to a mounting bracket 400, and the mounting bracket 400 is provided with a returning blade 401. The transmission component a can also drive the returning blade 401 to rotate.

[0051] By incorporating the returning blade 401, crop residues can be processed immediately after harvesting, further improving operational efficiency and environmental friendliness. Driven by transmission component a, the returning blade 401 achieves a rotary cutting action, processing the harvested crop residues and evenly returning them to the field. This not only helps loosen the soil and recycle nutrients but also reduces the impact of residue accumulation on the land, contributing to improved soil fertility and a better growing environment for crops.

[0052] As a further part of this utility model, the transmission component a includes a transmission box 200 connected to the reversing box 112, a transmission shaft a201 is provided inside the transmission box 200, two reeling shafts 202 are provided on the transmission box 200, a reeling chain 103 is sleeved on the reeling shafts 202, and a gear transmission mechanism a203 is provided between the reeling shafts 202 and the transmission shaft a201.

[0053] By setting up a transmission box 200 and a gear transmission mechanism a203, the transmission shaft a201 inside the transmission box 200 is connected to the reeling shaft 202 via the gear transmission mechanism a203. This gear transmission design not only improves transmission efficiency but also ensures the synchronization of the rotation speed of the reeling chain 103 with other components, thus avoiding jamming or malfunctions caused by mismatched speeds. The reeling chain 103 smoothly completes the tasks of reeling and cutting the crop through the rotation of the reeling shaft 202. The efficient cooperation of the gear transmission mechanism a203 also ensures the uniform transmission of power, thereby improving the stability and durability of the entire harvesting device.

[0054] As a further part of this utility model, the transmission component a also includes two transmission shafts b204 rotatably connected to the reversing box 112, and a gear transmission mechanism b205 is provided between the two transmission shafts b204. A chain (not shown in the figure) is provided between one of the transmission shafts b204 and the shaft of the returning blade 401, and a chain (not shown in the figure) is also provided between the other transmission shaft b204 and the transmission shaft a201.

[0055] By setting up two drive shafts b204 and a gear transmission mechanism b205, the power of drive shaft a201 can be more efficiently distributed to the reversing box 112. The function of gear transmission mechanism b205 is to transmit power from one drive shaft b204 to the other, thereby ensuring the balance and stability of the transmission system. Drive shaft b204 is connected to the shaft of the returning blade 401 via a chain, allowing the returning blade 401 to obtain a continuous and stable power source for cutting and returning operations. Simultaneously, the chain connection between the other drive shaft b204 and drive shaft a201 ensures the synchronous operation of the reeling chain 103 and other related components. The chain drive design effectively reduces mechanical wear, improves overall transmission efficiency, and has good adaptability under different loads, avoiding excessive wear or energy efficiency reduction caused by transmission imbalance in traditional transmission methods. The precise design of the entire transmission system ensures that each component operates in optimal condition, improving the working efficiency and reliability of the device.

[0056] As a further part of this utility model, the transmission component a also includes a transmission shaft c206 connected to the transmission box 200, a gear transmission mechanism c207 between the transmission shaft c206 and the transmission shaft a201, the pulled stem roller 104 is connected to the transmission shaft c206, the transmission box 200 is also rotatably connected to the transmission shaft d208, there is a gear transmission mechanism d209 between the transmission shaft d208 and the transmission shaft a201, and the peeling shaft 107 is connected to the transmission shaft d208;

[0057] By configuring drive shafts c206 and d208, and their respective gear transmission mechanisms c207 and d, power can be more flexibly distributed to different working components, thereby achieving more precise control and efficient operation. The gear transmission mechanism c207 between drive shafts c206 and a201 ensures the stable operation of the stem-pulling roller 104, which plays an auxiliary role in crop harvesting, helping to straighten the crop and prevent knotting or jamming. Meanwhile, the gear transmission mechanism d209 between drive shafts d208 and a201 drives the peeling shaft 107 via drive shaft d208, ensuring the smooth rotation of the peeling shaft 107 and effectively removing the crop's outer skin, further improving harvesting efficiency and crop quality. Through this series of transmission devices, the working components can operate independently yet collaboratively, allowing each component to efficiently complete its function without affecting overall efficiency, ensuring the device's working efficiency and stability. The gear transmission design not only improves the overall transmission efficiency, but also reduces frictional losses between components, reduces failures caused by mechanical wear, further extends the service life of the equipment, and ensures long-term efficient operation.

[0058] As a further aspect of this invention, a drive shaft e210 is connected to one side of the drive shaft a201, and a chain (not shown in the figure) is also provided between the drive shaft e210 and the actuating shaft 108.

[0059] By incorporating a chain (not shown in the figure), the power of the drive shaft e210 can be effectively transmitted to the actuating shaft 108, ensuring that the actuating shaft 108 can rotate smoothly and drive the actuating blade 109 to perform its operation. Combined with the rotation of the peeling shaft 107, the actuating blade 109 effectively helps to peel the corn husk and remove the corn from the header 101. During rotation, the actuating blade 109 works in conjunction with the action of the peeling shaft 107 to help peel the outer husk of the corn while avoiding excessive damage to the corn kernels. The peeling shaft 107 itself uses rotational force to rub and peel the corn husk, while the rotation of the actuating blade 109 helps to hold the corn at the appropriate angle and direction, ensuring that the husk is removed evenly and effectively. The rotation of the actuating blade 109 not only enhances the contact force with the corn husk but also prevents the corn from getting stuck in the equipment, ensuring its smooth passage through the entire processing process. This synergistic working method effectively improves peeling efficiency, reduces damage to the corn kernels during husk peeling, and also improves the overall harvesting and processing accuracy.

[0060] As a further part of this utility model, the transmission component b includes a sprocket a300 connected to the drive shaft 110 and the rotating shaft 111. A chain (not shown in the figure) is also provided between the sprockets on the drive shaft 110 and the rotating shaft 111. A sprocket b301 is provided on the transmission shaft a201 and the rotating shaft 111 respectively. A chain (not shown in the figure) is also provided between the two sprockets b301.

[0061] By configuring sprocket a300 and a chain (not shown in the figure), efficient power transmission between drive shaft 110 and rotating shaft 111 can be achieved. Drive shaft 110 is connected to the sprocket on rotating shaft 111 via sprocket a300, ensuring that rotating shaft 111 starts synchronously with the rotation of drive shaft 110. The chain stabilizes power transmission, preventing mechanical wear or energy loss. Simultaneously, transmission shaft a201 is connected to sprocket b301 on rotating shaft 111, and the chain between the two sprockets b301 further enhances the stability and efficiency of the transmission, ensuring stable rotation of rotating shaft 111. This sprocket and chain design allows the entire transmission system to maintain efficient power transmission under different load conditions, while also possessing strong adaptability and reliability. Chain drive has a simple structure, low cost, and convenient maintenance, ensuring system stability during long-term operation, effectively reducing the possibility of failure, and improving the overall efficiency and durability of the device.

[0062] Furthermore, compared to existing technologies that typically use a single shaft for power transmission, this device employs a rotating shaft 111 structure, which outputs power via sprockets, directly transmitting it to the peeling shaft 107 and the returning blade. This design effectively avoids the problem of a single shaft breaking due to excessive pressure, ensuring a smooth and efficient power transmission process. By distributing the power load, mechanical damage caused by excessive power output is reduced, while power loss is avoided, enabling the device to maintain stable operation under high loads, thus improving overall work efficiency and equipment durability.

[0063] As a further part of this utility model, a bushing 302 is connected to the frame 100, and a bearing 303 is provided inside the bushing 302. The rotating shaft 111 extends into the bushing 302 and is connected to the inner ring of the bearing 303.

[0064] By incorporating bushing 302 and bearing 303, the rotating shaft 111 can be effectively supported and its stable operation ensured. The design of bushing 302 provides better support for the rotating shaft 111, reducing friction between it and the frame 100, and improving the working efficiency and durability of the rotating shaft 111. The inner ring of bearing 303 connects to the rotating shaft 111, enabling the rotating shaft 111 to maintain smooth rotation during operation, reducing heat and energy loss caused by friction, and extending the service life of the equipment. Furthermore, the cooperation between bushing 302 and bearing 303 can effectively reduce wear on mechanical parts, reduce the probability of failure, and ensure the stability of the entire device during long-term use.

[0065] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A transmission structure for a corn harvester, characterized in that, include: A frame (100) is provided with a cutting table (101) and a fan (102) is provided on the cutting table (101). A stalk-pulling chain (103) is provided on the header (101), and a stalk-pulling roller (104) is provided on the header (101), with a guide cone (105) connected to the stalk-pulling roller (104). A bracket (106) is provided on one side of the cutting table (101), and a plurality of peeling shafts (107) are rotatably connected to the bracket (106). Multiple actuating shafts (108) are provided on the bracket (106), and multiple paddles (109) are provided on the actuating shafts (108). A drive shaft (110) is provided on the frame (100), and a rotating shaft (111) is also provided on the frame (100). A reversing box (112) is mounted on the frame (100). The transmission component a, located in the reversing box (112), is used to drive the rotation of the reeling chain (103), the guide cone (105), and the stalk pulling roller (104); A transmission component b is provided between the drive shaft (110), the rotating shaft (111) and the reversing box (112) for transmitting the reeling chain (103), the guide cone (105) and the stalk pulling roller (104) to the transmission component a on the reversing box (112) through the rotating shaft (111) when the drive shaft (110) rotates.

2. The transmission structure of a corn harvester according to claim 1, characterized in that, The bottom of the cutting platform (101) is connected to a mounting bracket (400), and the mounting bracket (400) is provided with a field-returning blade (401). The transmission component a can also drive the field-returning blade (401) to rotate.

3. The transmission structure of a corn harvester according to claim 2, characterized in that, The transmission component a includes a transmission box (200) connected to the reversing box (112), a transmission shaft a (201) is provided inside the transmission box (200), two reeling shafts (202) are provided on the transmission box (200), the reeling chain (103) is sleeved on the reeling shaft (202), and a gear transmission mechanism a (203) is provided between the reeling shaft (202) and the transmission shaft a (201).

4. The transmission structure of a corn harvester according to claim 3, characterized in that, The transmission component a further includes two transmission shafts b (204) rotatably connected to the reversing box (112), and a gear transmission mechanism b (205) is provided between the two transmission shafts b (204). A chain is provided between one of the transmission shafts b (204) and the shaft of the returning blade (401), and a chain is also provided between the other transmission shaft b (204) and the transmission shaft a (201).

5. The transmission structure of a corn harvester according to claim 3, characterized in that, The transmission component a further includes a transmission shaft c (206) connected to the transmission box (200), a gear transmission mechanism c (207) is provided between the transmission shaft c (206) and the transmission shaft a (201), the pull roller (104) is connected to the transmission shaft c (206), the transmission box (200) is also rotatably connected to the transmission shaft d (208), there is a gear transmission mechanism d (209) between the transmission shaft d (208) and the transmission shaft a (201), and the peeling shaft (107) is connected to the transmission shaft d (208).

6. The transmission structure of a corn harvester according to claim 3, characterized in that, One side of the drive shaft a (201) is connected to the drive shaft e (210), and a chain is also provided between the drive shaft e (210) and the actuating shaft (108).

7. The transmission structure of a corn harvester according to claim 3, characterized in that, The transmission component b includes a sprocket a (300) connected to the drive shaft (110) and the rotating shaft (111). A chain is also provided between the sprockets on the drive shaft (110) and the rotating shaft (111). Sprockets b (301) are respectively provided on the transmission shaft a (201) and the rotating shaft (111), and a chain is also provided between the two sprockets b (301).

8. The transmission structure of a corn harvester according to claim 1, characterized in that, A bushing (302) is connected to the frame (100), and a bearing (303) is provided inside the bushing (302). The rotating shaft (111) extends into the bushing (302) and is connected to the inner ring of the bearing (303).

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