A chainless track drive mechanism

Abstract

The present application relates to a kind of clamping chain trackless transmission mechanism.The transmission mechanism includes two clamping chains, the two clamping chains are close to each other to form the clamping section for clamping peanut seedling;Several supporting wheels are rotatably arranged on the frame of semi-feed peanut combine harvester, the supporting wheels are respectively located in the inner ring of the two clamping chains, for shaping and limiting the clamping chain;The present application cancels the traditional fixed guide rail, and uses bearing rotating supporting wheel to support and limit the clamping chain, changes sliding friction into rolling friction, fundamentally reduces the frictional resistance in the running process of clamping chain, thereby greatly prolongs the service life of clamping chain and supporting component.

Description

Technical Field

[0001] This invention belongs to the field of agricultural machinery technology, specifically relating to a trackless transmission mechanism for clamping chains. Background Technology

[0002] In a semi-feed peanut combine harvester, the clamping chain is the core transmission component that carries the peanut vines and completes the lifting and conveying operations. In traditional clamping chain transmission mechanisms, guide rails are usually provided on both sides of the clamping chain as support and limiting structures. The clamping chain runs under the constraint of the guide rails, relying on the support force provided by the guide rails to ensure that the chain maintains a stable running trajectory during operation.

[0003] However, the aforementioned clamping chain drive mechanism with guide rail support has the following significant drawbacks in actual use: During operation, the clamping chain experiences continuous sliding friction with the fixed guide rail. Due to the harsh environment of peanut harvesting, mud and sand particles easily enter the mating surface between the chain and the guide rail, causing abrasive wear. This leads to extremely rapid wear of the guide rail and severe wear of the clamping chain itself, resulting in generally short service lives for both. Because the clamping chain and guide rail are in a sliding friction fit, the frictional resistance is high, significantly increasing the traction force required to drive the clamping chain. This not only increases engine power consumption but also keeps the drive shaft under high load for extended periods, drastically shortening its lifespan and making it prone to damage. Both the guide rail and the clamping chain require complete replacement after wear. Coupled with frequent drive shaft failures, this results in high maintenance costs and frequent downtime for users, severely impacting operational efficiency.

[0004] To address the aforementioned problems, existing technologies have attempted to mitigate wear by improving guide rail materials and increasing lubrication, but none of these methods have fundamentally solved the issues of high resistance and rapid wear caused by sliding friction. Therefore, there is an urgent need for a transmission mechanism that can fundamentally change the way the clamping chain is supported, thereby significantly reducing wear, decreasing driving resistance, and extending the service life of each component. Summary of the Invention

[0005] The purpose of this invention is to provide a trackless transmission mechanism for clamping chains in order to solve the problems mentioned in the background art.

[0006] The present invention achieves the above objectives through the following technical solutions: A trackless transmission mechanism for clamping chains, comprising: Two clamping chains are brought close together to form a clamping segment for clamping peanut vines; Several support wheels are rotatably mounted on the frame of the semi-feeding peanut combine harvester. The support wheels are located on the inner rings of the two clamping chains and are used to shape and limit the clamping chains.

[0007] Preferably, the support wheels are divided into two groups, each group corresponding to one clamping chain, and the number of support wheels in each group is at least twelve.

[0008] Preferably, at least twelve of the support wheels in each group are arranged sequentially along the conveying direction of the clamping chain, wherein: At least three of the support wheels located at the front end open the entrances of the two clamping chains to guide the peanut vines into the clamping section; At least eight of the support wheels located in the middle are used to spread and shape the clamping chain; One of the support wheels located at the rear end is a drive wheel, used to drive the clamping chain to rotate. Preferably, the clamping chain is provided with a plurality of bite teeth at equal intervals along its extension direction to enhance the clamping effect.

[0009] Preferably, the biting teeth are made of rubber material.

[0010] Preferably, the biting teeth are located on the upper part of the clamping chain, and a plurality of magnetic blocks are fixedly provided on the lower part of the clamping chain along its extension direction. A magnetic strip is provided below the magnetic blocks. The magnetic blocks and the magnetic strip have the same magnetism. The magnetic strip is fixedly installed on the semi-feeding peanut combine harvester.

[0011] Preferably, both the magnetic block and the magnetic strip are provided with inclined surfaces, and the magnetic strip uses the inclined surfaces to limit the magnetic block and the clamping chain.

[0012] Preferably, the angle between the inclined plane and the vertical direction is 30°-45°.

[0013] The beneficial effects of this invention are as follows: This invention eliminates the traditional fixed guide rail and uses a rotating support wheel with bearings to support and limit the clamping chain, transforming sliding friction into rolling friction. This fundamentally reduces the frictional resistance during the operation of the clamping chain, thereby significantly extending the service life of the clamping chain and support components.

[0014] In this invention, the working resistance is significantly reduced, and the traction force required to drive the clamping chain is greatly reduced. This not only reduces the load on the drive shaft and extends its lifespan, but also saves engine horsepower output and reduces fuel consumption.

[0015] This invention provides a continuous upward lifting force to the clamping chain by setting a magnetic block at the bottom of the clamping chain and a corresponding magnetic strip on the frame. This effectively prevents the chain from sagging, ensures the smooth operation of the clamping chain, and reduces the risk of the chain derailing and falling off the support wheel.

[0016] This invention designs the mating surfaces of the magnetic block and magnetic strip as an inclined structure, decomposing the magnetic repulsion force into a vertical lifting force and a lateral auxiliary clamping force. The lateral auxiliary clamping force can automatically adjust the clamping force according to the thickness of the peanut vine stem, achieving adaptive clamping for peanut vines of different diameters. It automatically clamps to prevent slippage when the vine is thin, and automatically moves aside to prevent injury when the vine is thick, effectively improving harvesting quality and operational reliability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram showing the installation position relationship of the clamping chain on the semi-feeding peanut combine harvester in this invention; Figure 2 This is a schematic diagram showing the positional relationship between the support wheel and the semi-feeding peanut combine harvester in this invention; Figure 3 This is a schematic diagram illustrating the working principle of the chain clamping mechanism in this invention; Figure 4 This is a schematic diagram showing the positional relationship between the clamping chain and the support wheel in this invention; Figure 5 This is a schematic diagram of the structure of the clamping segment for clamping the chain in this invention; Figure 6 This is a schematic diagram showing the positional relationship between the magnetic block and the magnetic strip in this invention.

[0018] In the diagram: 1. Clamping chain; 2. Support wheel; 3. Clamping section; 4. Engaging teeth; 5. Magnetic block; 6. Magnetic strip; 7. Inclined surface. Detailed Implementation

[0019] The present application will now be described in further detail. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] Example 1: like Figure 1-6 As shown, a trackless transmission mechanism for clamping chains includes two clamping chains 1 and a plurality of support wheels 2 for limiting the two clamping chains 1.

[0021] The two clamping chains 1 are both closed ring structures. Under the limiting action of several support wheels 2, they approach each other and the two close-to-each-other sections form the clamping section 3, in which the peanut vines are clamped.

[0022] The support wheel 2 is rotatably mounted on the frame of the semi-feeding peanut combine harvester. The support wheel 2 is located on the inner ring of the clamping chain 1 and is used to shape and limit the clamping chain 1.

[0023] It should be noted that the traditional fixing method with guide rail support is replaced by a fixing method with rotating support wheels 2 on both sides to support the clamping chain 1. Because the support wheel 2 has a rotating bearing inside, it not only effectively supports the chain 1 when it is working, but also reduces working resistance, thereby reducing the friction between the clamping chain 1 and the guide rail support and increasing the service life of the clamping chain 1.

[0024] In this embodiment, several support wheels 2 are divided into two groups, each group corresponding to one clamping chain 1, and each group has at least 12 support wheels 2. Taking one group as an example, at least 3 are distributed at the front of the semi-feeding peanut combine harvester, so that the entrances of the two chains are open, forming an inverted V-shape, which facilitates the entry of peanut vines into the clamping section 3. At least 8 are distributed in the middle to spread and shape the clamping chain 1, so as to prevent the clamping chain 1 from colliding and rubbing itself. The rear end of the semi-feeding peanut combine harvester uses a support wheel 2 as a power source to drive the clamping chain 1 to rotate. A motor can be used to drive the rotation of the support wheel 2.

[0025] Furthermore, a number of biting teeth 4 are fixedly provided at equal intervals along the extension direction of the clamping chain 1 to enhance the clamping effect. Preferably, the biting teeth 4 are made of rubber material. When the biting teeth 4 move to the clamping section 3, the biting teeth 4 on the two clamping chains 1 tightly clamp the peanut main stem. The two chains rotate synchronously and in the same direction under the drive of the motor, like a conveyor belt, forcefully pulling the peanut vine out of the soil and moving it to the rear of the semi-feeding peanut combine harvester.

[0026] Implementation: 2: Based on Example 1, in this example, the biting teeth 4 are located on the upper part of the clamping chain 1, and a number of magnetic blocks 5 are fixedly provided at the bottom of the clamping chain 1 along its extension direction. A magnetic strip 6 is provided below the magnetic blocks 5. The magnetic blocks 5 and the magnetic strip 6 have the same magnetism. The magnetic strip 6 is fixedly installed on the semi-feeding peanut combine harvester.

[0027] It should be noted that while eliminating the guide rail increases the service life of the clamping chain 1, it also reduces the supporting force on the clamping chain 1. To prevent significant deformation of the clamping chain 1 when clamping peanut vines, a magnetic strip 6 is added to the bottom of the clamping chain 1, and a magnetic block 5 is fixedly installed at the bottom of the clamping chain 1. Utilizing the principle of like poles repulsion, the magnetic strip 6 generates an upward magnetic repulsive force on the magnetic block 5, thereby creating an upward lifting force on the clamping chain 1. Under the action of the lifting force, the clamping chain 1 will not bend excessively downward, especially in the section between two adjacent support wheels 2. This not only reduces the friction between the clamping chain 1 and the support wheels 2, but also reduces the risk of the clamping chain 1 falling off the support wheels 2.

[0028] Furthermore, both the magnetic block 5 and the magnetic strip 6 are provided with inclined surfaces 7, and the magnetic strip 6 uses the inclined surfaces 7 to limit the magnetic block 5 and the clamping chain 1.

[0029] It should be noted that the inclined surface 7 of the magnetic strip 6 provides both lateral and vertical magnetic repulsion to the magnetic block 5. The vertical magnetic repulsion acts as a lifting force, while the lateral magnetic repulsion brings the two clamping chains 1 closer together. When clamping peanut vines, the clamping is adapted to different diameters of peanut vines based on their thickness. When the peanut vines are thin, the lateral magnetic repulsion allows the two clamping chains 1 at the clamping ends to grip the peanut vine tightly, preventing the clamping chains 1 from slipping and causing the peanut to remain stuck.

[0030] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A trackless transmission mechanism for clamping a chain, characterized in that, include: Two clamping chains (1) are brought close to each other to form a clamping segment (3) for clamping peanut vines. Several support wheels (2) are rotatably mounted on the frame of the semi-feeding peanut combine harvester. The support wheels (2) are located on the inner rings of the two clamping chains (1) respectively, and are used to shape and limit the clamping chains (1).

2. The trackless transmission mechanism for clamping chains according to claim 1, characterized in that, The support wheels (2) are divided into two groups, each group corresponding to one clamping chain (1), and the number of support wheels (2) in each group is at least twelve.

3. The trackless transmission mechanism for clamping chains according to claim 2, characterized in that, At least twelve of the support wheels (2) in each group are arranged sequentially along the conveying direction of the clamping chain (1), wherein: At least three of the support wheels (2) located at the front end open the entrances of the two clamping chains (1) to guide the peanut vines into the clamping section (3). At least eight of the support wheels (2) located in the middle are used to spread and shape the clamping chain (1); One of the support wheels (2) located at the rear end is a drive wheel used to drive the clamping chain (1) to rotate.

4. The trackless transmission mechanism for clamping chains according to claim 1, characterized in that, The clamping chain (1) is provided with a number of bite teeth (4) at equal intervals along its extension direction to increase the clamping effect.

5. The chain clamping trackless transmission mechanism according to claim 4, characterized in that, The biting teeth (4) are made of rubber material.

6. The trackless transmission mechanism for clamping a chain according to claim 4, characterized in that, The biting teeth (4) are located on the upper part of the clamping chain (1). A number of magnetic blocks (5) are fixedly provided on the lower part of the clamping chain (1) along its extension direction. A magnetic strip (6) is provided below the magnetic blocks (5). The magnetic blocks (5) and the magnetic strip (6) have the same magnetism. The magnetic strip (6) is fixedly installed on the semi-feeding peanut combine harvester.

7. The trackless transmission mechanism for clamping a chain according to claim 6, characterized in that, Both the magnetic block (5) and the magnetic strip (6) are provided with inclined surfaces (7). The magnetic strip (6) uses the inclined surfaces (7) to limit the magnetic block (5) and the clamping chain (1).

8. The trackless transmission mechanism for clamping a chain according to claim 7, characterized in that, The angle between the inclined plane (7) and the vertical direction is 30°-45°.

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