Main transmission mechanism of corn machine

Abstract

The utility model discloses a main transmission mechanism of a corn machine, which comprises a main transmission mechanism and a peeling transmission mechanism which are arranged on a rack, the input end of the main transmission mechanism is connected with the output end of an engine, and the driven end of the main transmission mechanism is connected with the input end of the peeling transmission mechanism. The main transmission mechanism comprises a first input belt pulley, a first driven belt pulley and a first transmission belt; the peeling transmission mechanism comprises a second input belt pulley, a second driven belt pulley and a second transmission belt; the first input belt pulley is connected with the input end of an engine, the first input belt pulley is connected with the first driven belt pulley through a first transmission belt, the second input belt pulley is coaxial with the first driven belt pulley, and the second input belt pulley is connected with the second driven belt pulley through a second transmission belt.

Description

TECHNICAL FIELD

[0001] The utility model relates to a corn machine main drive mechanism. BACKGROUND

[0002] Corn is one of the main food crops in China, and its planting distribution range is very wide at present, with a total planting area of more than 620 million mu, ranking second in the world. China's output reached 280 million tons in 2023, and the main production areas are mainly concentrated in the northeast and Huang-Huai-Hai regions, Henan, Hebei, Shandong and other places in North China. There is also a growing trend.

[0003] The corn harvesting mechanization rate in China is about 78%, and corn harvesting mechanization has basically achieved mechanization. The number of corn harvesters in China has steadily increased from 500.03 thousand in 2017 to 61.06 thousand in 2021, with an annual compound growth rate of 5.11%. The market demand for corn harvesters is increasing year by year. The transmission part of the corn harvester is an important part of the whole vehicle, and whether the transmission structure is reasonable becomes a necessary factor that restricts the efficiency and fault rate of the corn harvester. The traditional transmission structure transmits power to the peeling machine and the main transmission respectively, and the two parts are tensioned by hydraulic pressure, which has a complex structure, high failure rate and high cost, and the hydraulic structure is difficult to maintain. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the above technical deficiencies, and provides a corn machine main drive mechanism.

[0005] A corn machine main drive mechanism, comprising a main drive mechanism and a peeling drive mechanism installed on a rack, the input end of the main drive mechanism is connected with the output end of the engine, the driven end of the main drive mechanism is connected with the input end of the peeling drive mechanism, the main drive mechanism comprises a first input pulley, a first driven pulley and a first transmission belt, and the peeling drive mechanism comprises a second input pulley, a second driven pulley and a second transmission belt.

[0006] The first input pulley is connected with the input end of the engine, the first input pulley is connected with the first driven pulley through the first transmission belt, the second input pulley is coaxial with the first driven pulley, and the second input pulley is connected with the second driven pulley through the second transmission belt.

[0007] Further, the main drive mechanism and the peeling drive mechanism are respectively provided with a first tensioning pulley and a second tensioning pulley, the first tensioning pulley is used for tensioning the first transmission belt, and the second tensioning pulley is used for tensioning the second transmission belt.

[0008] Further, the first tensioning pulley is connected with a tensioning oil cylinder.

[0009] Further, the second tensioning wheel is connected with a tensioning mechanism, the tensioning mechanism comprises a first tensioning rod and a second tensioning rod, one end of the first tensioning rod is hingedly connected with the rack, a middle section of the first tensioning rod is coaxially connected with the tensioning wheel, the other end of the first tensioning rod is provided with a bolt, one end of the bolt is locked by a nut, the other end of the bolt is provided with a connecting block, the second tensioning rod is movably arranged in the connecting block, a top of the second tensioning rod is provided with a locking nut, a compression spring is arranged between the locking nut and the connecting block, and the compression spring is sleeved on the outer wall of the second tensioning rod.

[0010] Further, the number of the locking nuts is two.

[0011] Advantages: Compared with the prior art, the utility model has the following advantages:

[0012] Through the setting of the main transmission mechanism and the peeling transmission mechanism, power transmission from the engine to the peeling device is realized. This design makes the whole mechanism compact in structure and high in power transmission efficiency, and can meet the peeling demand in the corn harvesting process.

[0013] Power transmission is achieved by the pulley and the transmission belt, which has the advantages of stable transmission, low noise, convenient maintenance, etc. The belt transmission can adapt to certain load changes and ensure stable output of power.

[0014] This design can conveniently adjust the position of the first tensioning wheel through the tensioning oil cylinder, so as to realize the adjustment of the tensioning degree of the first transmission belt. This automatic adjustment mode improves the work efficiency and reduces the trouble of manual adjustment.

[0015] Through the combination of the first tensioning rod, the second tensioning rod, the bolt, the connecting block, the locking nut and the compression spring, the tensioning adjustment of the second tensioning wheel is realized. The setting of the compression spring enables the second tensioning wheel to adapt to the tightness change of the belt to a certain extent and maintain stable transmission of the belt. At the same time, the number of the locking nuts is two, which further enhances the stability and reliability of the tensioning mechanism.

[0016] The design of the whole mechanism takes into account the convenience of maintenance. For example, the pulley and the transmission belt are easy to check and replace, and the tensioning mechanism is also designed to be relatively simple, facilitating adjustment and maintenance.

[0017] The mechanism can adapt to different models of engines and peeling devices, and has strong universality and adaptability. By adjusting the size of the pulley and the transmission ratio, different operation demands can be flexibly met. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of a main transmission mechanism of a corn machine;

[0019] In the figure, 1, first input pulley, 2, first driven pulley, 3, first transmission belt, 4, second input pulley, 5, second driven pulley, 6, second transmission belt, 7, first tensioner, 8, second tensioner, 9, first tension rod, 10, compression spring, 11, connecting block, 12, second tension rod, 13, locking nut. DETAILED DESCRIPTION

[0020] In order to deepen the understanding of the utility model, the utility model will be further described below in combination with examples and drawings, and the examples are only used to explain the utility model and do not constitute a limitation on the protection scope of the utility model.

[0021] As Figure 1 shown, first input pulley 1, first driven pulley 2, first transmission belt 3, second input pulley 4, second driven pulley 5, second transmission belt 6, first tensioner 7, second tensioner 8, first tension rod 9, compression spring 10, connecting block 11, second tension rod 12, locking nut 13;

[0022] A corn machine main transmission mechanism, including main transmission mechanism, peeling transmission mechanism installed on the frame, the input end of the main transmission mechanism is connected with the output end of the engine, the driven end of the main transmission mechanism is connected with the input end of the peeling transmission mechanism, the main transmission mechanism includes first input pulley, first driven pulley, first transmission belt, the peeling transmission mechanism includes second input pulley, second driven pulley, second transmission belt;

[0023] The first input pulley is connected with the input end of the engine, the first input pulley is connected with the first driven pulley through the first transmission belt, the second input pulley is coaxial with the first driven pulley, and the second input pulley is connected with the second driven pulley through the second transmission belt.

[0024] In the present example, the main transmission mechanism and the peeling transmission mechanism are respectively provided with first tensioner and second tensioner, the first tensioner is used for tensioning the first transmission belt, and the second tensioner is used for tensioning the second transmission belt.

[0025] In the present example, the first tensioner is connected with the tensioning oil cylinder.

[0026] In the present example, the second tensioner is connected with the tensioning mechanism, the tensioning mechanism includes first tension rod and second tension rod, one end of the first tension rod is hinged with the frame, the middle section of the first tension rod is connected with the tensioner coaxially, the other end of the first tension rod is provided with a bolt, one end of the bolt is locked through a nut, the other end of the bolt is provided with a connecting block, the second tension rod is movably arranged in the connecting block, the top of the second tension rod is provided with a locking nut, a compression spring is arranged between the locking nut and the connecting block, and the compression spring is sleeved on the outer side wall of the second tension rod.

[0027] In the present example, the number of lock nuts is two.

[0028] Working principle: the power is transmitted to the main transmission shaft through the main transmission belt from the output end, and then the power is transmitted to the stripping machine and the header by the main transmission shaft, the interruption of the power is controlled by the main clutch tensioning mechanism, the transmission tension of the stripping machine and the header is avoided by the tensioning pull rod, the stripping machine tensioning is insufficient during the double hydraulic tensioning process, and the phenomena such as insufficient stripping are avoided, and the power distribution is avoided by the main transmission to avoid the influence of the stripping machine belt vibration on the engine, and the stripping machine transmission part is outside, which is convenient for disassembly and maintenance.

[0029] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A corn planter main drive mechanism characterized by, The main transmission mechanism and the stripping transmission mechanism are respectively provided with a first tensioning wheel and a second tensioning wheel, the first tensioning wheel is used for tensioning the first transmission belt, and the second tensioning wheel is used for tensioning the second transmission belt. The first tensioning wheel is connected with a tensioning oil cylinder.

2. A corn planter main drive mechanism as claimed in claim 1, wherein, The second tensioning wheel is connected with a tensioning mechanism, the tensioning mechanism comprises a first tensioning rod and a second tensioning rod, one end of the first tensioning rod is hingedly connected with the rack, the middle section of the first tensioning rod is coaxially connected with the tensioning wheel, the other end of the first tensioning rod is provided with a bolt, one end of the bolt is locked by a nut, the other end of the bolt is provided with a connecting block, the second tensioning rod is movably arranged in the connecting block, the top of the second tensioning rod is provided with a locking nut, a compression spring is arranged between the locking nut and the connecting block, and the compression spring is sleeved on the outer side wall of the second tensioning rod.

3. A corn planter main drive mechanism as claimed in claim 2, wherein, The number of the locking nuts is two.

4. A corn planter main drive mechanism as claimed in claim 2, wherein, The number of the locking nuts is two.

5. A corn planter main drive mechanism as claimed in claim 4 wherein, ​

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