Chain drive for peanut harvester

Abstract

The utility model discloses a chain drive structure for peanut harvester belongs to peanut harvester technical field, and this structure includes frame, first chain and second chain and anti - deviation subassembly, and anti - deviation subassembly includes fixed plate, and the fixed plate is fixed with slide rail and fixed axle, and the sliding block is slidably arranged in the slide rail, and the sliding block is connected with the sliding sleeve that sets up on fixed axle sliding ring, and the fixed axle is set up with the spring that is abutted between sliding ring and fixed plate, and the sliding block is connected with the sliding rod that can be slidably worn in fixed plate, and one end of sliding rod is rotatably connected with the anti - deviation guide wheel through the bearing. The utility model solves the problem that chain is easy to deviate and easy to accumulate impurities, when chain deviates, and the anti - deviation subassembly is automatically corrected under the spring effect, and the guide wheel rotates and drives the spiral shaft to discharge the impurities through the impurity discharge groove, realizes automatic cleaning, compact structure, improves the transmission stability.

Description

Technical Field

[0001] This utility model relates to the field of peanut harvester technology, and in particular to a chain drive structure for a peanut harvester. Background Technology

[0002] Peanut harvesters are important machines used in modern agriculture for harvesting peanuts. They typically use a chain drive structure to transmit power and drive various working parts.

[0003] The working environment of peanut harvesters is usually very harsh, with a lot of soil, dust and peanut seedling debris. These impurities will inevitably adhere to the drive chain. The continuous accumulation of impurities will not only aggravate the wear of the chain and sprocket, but may also block the meshing points, causing transmission jamming or reduced efficiency. At the same time, the harvester will generate strong vibration and impact load when working in the field, which makes the chain prone to lateral deviation during operation.

[0004] Existing transmission structures often only focus on the transmission itself and lack dedicated protection and correction devices for such harsh working conditions. When the problems of chain misalignment and impurity contamination are superimposed, the chain is prone to derailment, causing the harvester to stop and affecting the continuity and reliability of harvesting operations.

[0005] Therefore, this utility model proposes a chain drive structure for peanut harvesters to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems existing in the chain drive structure for peanut harvesters, such as the chain being prone to impurities and lateral deviation in harsh working environments, resulting in unstable transmission, chain derailment failure, and low reliability, this utility model aims to provide a chain drive structure for peanut harvesters with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a chain drive structure for a peanut harvester, comprising: a frame, a first chain and a second chain mounted on the frame, and an anti-deviation assembly. The anti-deviation assembly includes a fixed plate, on which a slide rail and a fixed shaft are fixed. The anti-deviation assembly also includes a slider, which is slidably mounted within the slide rail. The slider is connected to a slip ring, which is slidably sleeved on the fixed shaft. A spring is sleeved on the fixed shaft, and the spring abuts against the slip ring and the fixed plate. A sliding rod is connected to the slider and slidably passes through the fixed plate. One end of the sliding rod is rotatably connected to an anti-deviation guide wheel via a bearing. The anti-deviation guide wheel is located on one side of the first chain and the second chain. A debris discharge groove communicating with the interior of the anti-deviation guide wheel is formed on its outer peripheral wall. A helical shaft is fixedly connected inside the anti-deviation guide wheel.

[0008] Preferably, the structure also includes a fixing frame, on which both the frame and the fixing plate are securely fixed. The fixing frame provides a uniform and robust mounting reference for the entire transmission structure and anti-deviation components.

[0009] Preferably, in order to provide clear guidance for the reciprocating motion of the sliding rod and limit its unnecessary rotation, the fixed plate is provided with an elongated oval groove in which the sliding rod slides. The sliding rod passes through the elongated oval groove to ensure the smoothness of its movement.

[0010] Preferably, as a specific implementation of the rotating connection, the inner ring of the bearing is connected to the anti-deviation guide wheel, and the outer ring of the bearing is connected to the sliding rod. This arrangement allows the anti-deviation guide wheel to rotate smoothly around the sliding rod as the axis, reducing the frictional resistance when the chain contacts.

[0011] Preferably, in order to ensure that the force transmission between the slider and the slip ring is direct and effective, the lower end of the slider is connected to the slip ring, so that the sliding displacement of the slider can be accurately transmitted to the slip ring, thereby compressing the spring.

[0012] Preferably, as a specific installation layout, the fixed shaft is fixedly installed on the side wall of the fixed plate. This layout is conducive to the installation of the slip ring and spring, and makes the entire elastic reset mechanism structure more compact.

[0013] Preferably, the debris discharge groove on the anti-deviation guide wheel and its internal spiral shaft together constitute a cleaning component. This cleaning component is integrated inside the anti-deviation guide wheel, realizing a combination of anti-deviation and cleaning functions.

[0014] Preferably, in order to ensure that the collected impurities can be discharged smoothly, the spiral shaft has an open end for discharging the impurities. When the spiral shaft rotates, the impurities are transported to the open end and discharged from the device, thus avoiding the accumulation of impurities inside the device.

[0015] This utility model has the following beneficial effects: 1. This utility model solves the problem in the prior art that the chain of a peanut harvester is prone to lateral deviation due to vibration when it is running at high speed, which leads to unstable transmission or chain derailment. It achieves the technical effect of real-time and automatic correction of the chain position, improving the stability and reliability of the transmission system.

[0016] 2. This utility model solves the problem in the prior art that the chain is prone to adhering to dust, seedling debris and other impurities in harsh working environments, thus affecting the normal meshing of the chain and gears, by opening a debris removal groove on the anti-deviation guide wheel and setting a spiral shaft inside it that rotates synchronously with the guide wheel. It achieves the technical effect of preventing chain deviation, actively cleaning the chain surface, ensuring meshing accuracy, reducing wear, and effectively extending the service life of the chain and related transmission components.

[0017] 3. This utility model integrates the anti-deviation function and the cleaning function into the same device. It uses the contact rotation between the chain and the anti-deviation guide wheel when the chain deviates to directly drive the internal spiral shaft. This solves the problem of the separation of anti-deviation and cleaning functions or the need for an additional power source in the prior art, which leads to complex structure and high cost. It achieves the technical effect of compact structure, high functional integration and energy efficiency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a chain drive structure for a peanut harvester proposed in this utility model; Figure 2 This is a schematic diagram of the second chain portion of a chain drive structure for a peanut harvester proposed in this utility model; Figure 3 This is a schematic diagram of the sliding rod portion of a chain drive structure for a peanut harvester proposed in this utility model; Figure 4 This is a schematic diagram of the slip ring part of a chain drive structure for a peanut harvester proposed in this utility model; Figure 5 for Figure 2 Enlarged view of point A in the image; Figure 6 for Figure 3 Enlarged view of point B in the image.

[0019] Legend: 1. Fixed frame; 2. Frame; 3. First chain; 4. Second chain; 5. Anti-deviation assembly; 501. Anti-deviation guide wheel; 502. Fixed shaft; 503. Sliding rod; 504. Fixed plate; 505. Spring; 506. Slider; 507. Slip ring; 508. Bearing; 509. Slide rail; 6. Cleaning assembly; 601. Waste discharge trough; 602. Spiral shaft. Detailed Implementation

[0020] 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.

[0021] Please refer to Figures 1 to 6 This utility model provides a chain drive structure for a peanut harvester, which aims to solve the problems in the prior art where the chain of a peanut harvester is prone to lateral deviation during transmission and impurities easily accumulate on the chain, leading to poor meshing.

[0022] like Figure 1 and Figure 2 As shown, the chain drive structure for a peanut harvester includes a fixed frame 1, a frame 2 fixedly connected to the fixed frame 1, and a first chain 3 and a second chain 4 for transmission mounted on the frame 2. The structure also includes an anti-deviation component 5, which prevents the first chain 3 or the second chain 4 from shifting laterally during operation. Furthermore, the anti-deviation component 5 integrates a cleaning component 6. Figure 3 and Figure 6 As shown, the anti-deviation assembly 5 includes a fixing plate 504, which is also fixedly connected to the fixing frame 1. The fixing plate 504 serves as the mounting base for the anti-deviation assembly 5. A sliding rod 503 is slidably passed through the fixing plate 504, and an elongated oval groove is provided on the fixing plate 504 for the sliding rod 503 to slide in. One end of the sliding rod 503 is rotatably connected to an anti-deviation guide wheel 501, which is located on one side of the first chain 3 and the second chain 4.

[0023] like Figure 2 and Figure 4 As shown, the sliding rod 503 and the anti-deviation guide wheel 501 are rotatably connected through a bearing 508. Specifically, the inner ring of the bearing 508 is connected to the anti-deviation guide wheel 501, and the outer ring of the bearing 508 is connected to the sliding rod 503. Figure 3 and Figure 6 As shown, a slide rail 509 and a fixed shaft 502 are also fixed on the fixed plate 504. The fixed shaft 502 is fixedly installed on the side wall of the fixed plate 504. The other end of the sliding rod 503 away from the anti-deviation guide wheel 501 is connected to a slider 506. The slider 506 is slidably disposed in the slide rail 509. The lower end of the slider 506 is connected to a slip ring 507. The slip ring 507 is slidably sleeved on the fixed shaft 502. A spring 505 is sleeved on the fixed shaft 502. The spring 505 abuts against the slip ring 507 and the fixed plate 504. Figure 2 and Figure 5As shown, the anti-deviation guide wheel 501 has a debris discharge groove 601 that communicates with its interior on its outer peripheral wall. The anti-deviation guide wheel 501 has a spiral shaft 602 fixedly connected inside. The debris discharge groove 601 and the spiral shaft 602 together constitute the cleaning assembly 6. The spiral shaft 602 has an open end for discharging impurities.

[0024] Please refer to Figure 1 , Figure 3 , Figure 4 and Figure 6 The fixed plate 504 is the main mounting carrier of the anti-deviation assembly 5. A slide rail 509 and a fixed shaft 502 are fixed on it. The fixed shaft 502 is fixedly installed on the side wall of the fixed plate 504. The slider 506 is slidably disposed within the slide rail 509, ensuring linear guidance of its movement. A slip ring 507 is connected to the lower end of the slider 506. The slip ring 507 is slidably sleeved on the fixed shaft 502. A spring 505 is sleeved on the fixed shaft 502 and abuts against the slip ring 507 and the fixed plate 504. The spring 505 provides a restoring force. A sliding rod 503 is connected to the slider 506. The sliding rod 503 slidably passes through the fixed plate 504. To ensure smooth sliding of the sliding rod 503, the fixed plate 504 has an elongated oval groove for the sliding rod 503 to slide within. An anti-deviation guide wheel 501 is rotatably connected to the end via a bearing 508. The inner ring of the bearing 508 is connected to the anti-deviation guide wheel 501, and the outer ring of the bearing 508 is connected to a sliding rod 503. This connection method allows the anti-deviation guide wheel 501 to rotate freely when it is in contact with the chain, reducing friction. When the first chain 3 or the second chain 4 deviates laterally, the side wall of the chain will touch and push the anti-deviation guide wheel 501. The anti-deviation guide wheel 501 transmits the thrust to the slider 506 through the sliding rod 503. The slider 506 drives the slip ring 507 to slide along the fixed shaft 502 and compress the spring 505. After the spring 505 is compressed, it generates a reverse elastic force. This elastic force pushes the slip ring 507, and the slider 506 and the sliding rod 503 reset in the opposite direction, thereby causing the anti-deviation guide wheel 501 to squeeze the chain in the opposite direction, forcing the first chain 3 and the second chain 4 back to the correct transmission track.

[0025] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, please refer to Figure 1 The structure also includes a fixing frame 1, and the frame 2 and the fixing plate 504 are both fixedly connected to the fixing frame 1. The fixing frame 1 provides a stable installation foundation for the entire device.

[0026] As a preferred embodiment, please refer to Figure 3 and Figure 6 To ensure that the sliding rod 503 slides smoothly and in a directional manner, the fixed plate 504 has an elongated oval groove in which the sliding rod 503 slides.

[0027] As a preferred embodiment, please refer to Figure 2 and Figure 4 The anti-deviation guide wheel 501 and the sliding rod 503 are rotatably connected by a bearing 508. Specifically, the inner ring of the bearing 508 is connected to the anti-deviation guide wheel 501, and the outer ring of the bearing 508 is connected to the sliding rod 503.

[0028] As a preferred embodiment, please refer to Figure 3 and Figure 6 In order to achieve the linkage of the sliding components, the lower end of the slider 506 is connected to the slip ring 507.

[0029] As a preferred embodiment, please refer to Figure 3 The fixed shaft 502 is preferably fixedly installed on the side wall of the fixed plate 504.

[0030] As a preferred embodiment, please refer to Figure 2 and Figure 5 The cleaning component 6 is formed by the debris discharge groove 601 on the anti-deviation guide wheel 501 and the spiral shaft 602 inside it.

[0031] As a preferred embodiment, please refer to Figure 5 In order to effectively remove the introduced impurities, the spiral shaft 602 has an open end for removing the impurities.

[0032] The working principle of the chain drive structure for a peanut harvester of this utility model is as follows: When the first chain 3 or the second chain 4 is running on the frame 2, if lateral deviation occurs, its sidewall will contact and push the anti-deviation guide wheel 501. Since the anti-deviation guide wheel 501 is rotatably connected to the sliding rod 503 through the bearing 508, the thrust will be transmitted to the slider 506 connected to it through the sliding rod 503. The slider 506 slides in the guide of the slide rail 509. The slider 506 drives the slip ring 507 connected to its lower end to slide along the fixed shaft 502. The sliding of the slip ring 507 will compress the spring 505 between the slip ring 507 and the fixed plate 504. After being compressed, the spring 505 generates a reverse rebound force. This rebound force pushes the slip ring 507, and the slider 506 and the sliding rod 503 as a whole reverse reset, thereby causing the anti-deviation guide wheel 501 to squeeze the first chain 3 or the second chain 4 in the opposite direction, so that it returns to the correct transmission path, realizing automatic deviation correction.

[0033] During the aforementioned correction process, the contact friction between the first chain 3 or the second chain 4 and the anti-deviation guide wheel 501 causes it to rotate around the bearing 508. Impurities attached to the chain are introduced into the interior of the anti-deviation guide wheel 501 through the impurity discharge groove 601 opened on the outer peripheral wall of the anti-deviation guide wheel 501. After falling into the interior, the impurities fall onto the spiral shaft 602. The cleaning component 6, which is composed of the impurity discharge groove 601 and the spiral shaft 602, starts to work. Since the spiral shaft 602 is fixedly connected to the anti-deviation guide wheel 501, the spiral shaft 602 will rotate synchronously with the anti-deviation guide wheel 501. The rotating spiral shaft 602 transports the introduced impurities along its axial direction and finally discharges them from its open end for discharging impurities and falls to the ground. Thus, the chain is cleaned efficiently while correcting the deviation, avoiding the accumulation of impurities that affect meshing.

[0034] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A chain drive structure for a peanut harvester, comprising a frame (2), a first chain (3) and a second chain (4) disposed on the frame (2); Its features are, The chain drive structure also includes an anti-deviation component (5); The anti-deviation assembly (5) includes a fixed plate (504) and a slider (506). A slide rail (509) and a fixed shaft (502) are fixed on the fixed plate (504). The slider (506) is slidably disposed within the slide rail (509), and a slip ring (507) is connected to the slider (506) and slidably sleeved on the fixed shaft (502). A spring (505) is sleeved on the fixed shaft (502), and the spring (505) abuts against the slip ring (507) and the fixed plate (504). The slider (506) is connected to a sliding rod (503) that is slidably inserted through the fixed plate (504). One end of the sliding rod (503) is rotatably connected to an anti-deviation guide wheel (501) via a bearing (508). The anti-deviation guide wheel (501) is located on one side of the first chain (3) and the second chain (4). The outer peripheral wall of the anti-deviation guide wheel (501) is provided with a waste discharge groove (601) that communicates with its interior. A spiral shaft (602) is fixedly connected inside the anti-deviation guide wheel (501).

2. The chain drive structure for a peanut harvester according to claim 1, characterized in that, It also includes a fixing frame (1), and the frame (2) and the fixing plate (504) are both fixed on the fixing frame (1).

3. The chain drive structure for a peanut harvester according to claim 1, characterized in that, The fixed plate (504) has an elongated oval groove in which the sliding rod (503) slides.

4. The chain drive structure for a peanut harvester according to claim 1, characterized in that, The inner ring of the bearing (508) is connected to the anti-deviation guide wheel (501), and the outer ring of the bearing (508) is connected to the sliding rod (503).

5. The chain drive structure for a peanut harvester according to claim 1, characterized in that, The lower end of the slider (506) is connected to the slip ring (507).

6. The chain drive structure for a peanut harvester according to claim 1, characterized in that, The fixed shaft (502) is fixedly installed on the side wall of the fixed plate (504).

7. The chain drive structure for a peanut harvester according to claim 1, characterized in that, The waste discharge channel (601) and the spiral shaft (602) together constitute the cleaning component (6).

8. The chain drive structure for a peanut harvester according to claim 1, characterized in that, The spiral shaft (602) has an open end for discharging impurities.

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