Automatic dirt shaking device for peanut harvester

Abstract

The utility model relates to peanut harvesting technical field discloses an automatic soil shaking device of peanut harvester, including frame, slide bar and the sieve assembly of sliding connection in slide bar, and the sieve assembly includes a plurality of sieve bars. It further includes adjusting assembly, and adjusting assembly includes hand wheel, screw rod, the first connecting block of screw rod thread connection, the sliding plate fixed in the first connecting block and a plurality of connecting rods connected between the first fixed block of sliding plate and sieve assembly, drive screw rod through the rotation hand wheel, drive sliding plate and connecting rod linkage, can make sieve bar move along slide bar, realize the synchronous adjustment of sieve bar spacing. The utility model discloses adjusting assembly is set up, can conveniently adjust sieve bar spacing according to different size of peanut variety, solved the poor adaptability of the existing device because of spacing fixed and the problem of unideal sieving effect, improved the versatility and sieving precision of equipment significantly, and the structure is reliable, and the adjustment operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of peanut harvesting technology, and in particular to an automatic soil-shaking device for a peanut harvester. Background Technology

[0002] As an important economic crop, the efficiency of peanut harvesting directly affects the benefits of agricultural production. To replace traditional manual harvesting methods, mechanized peanut harvesters have emerged and are widely used. Modern peanut harvesters typically integrate multiple functions such as digging, conveying, and soil removal, significantly improving operational efficiency.

[0003] Effectively separating peanuts from the soil, roots, and other debris during peanut harvesting is a crucial step. Currently, the mainstream technology uses a vibrating screening mechanism to achieve this. This mechanism typically consists of multiple parallel screen bars. When the harvester is working, the transmission system drives the entire screening mechanism to vibrate at high frequency. Smaller clods of soil fall through the gaps between the screen bars under the vibration, while larger peanuts remain on the screen bars and are collected.

[0004] However, the effectiveness of the aforementioned screening mechanism is highly dependent on the setting of the screen bar spacing. In actual agricultural production, peanut varieties grown in different regions vary, and their average fruit size differs significantly. Existing peanut harvesting devices mostly have a fixed screen bar spacing. This design means that a single device often only achieves good screening results for peanuts of a specific size. When dealing with smaller peanut varieties, peanuts may slip through along with soil clods, resulting in harvest losses; while with larger peanut varieties, the spacing may be too small, making it difficult to effectively separate soil clods, leading to excessively high impurity levels in the harvested peanuts. This "one-size-fits-all" design significantly reduces the equipment's versatility and adaptability, failing to meet the precision operation requirements of different agricultural production scenarios.

[0005] Therefore, this utility model proposes an automatic soil-shaking device for a peanut harvester to address the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems in the existing technology of automatic soil shaking device for peanut harvesters, such as poor adaptability to peanuts of different sizes due to fixed screen bar spacing, affecting the screening effect, and inconvenience in screen bar replacement and maintenance, this utility model aims to provide an automatic soil shaking device for peanut harvesters with improved structure that can effectively solve the above problems.

[0007] This utility model provides an automatic soil-shaking device for a peanut harvester, including a frame, a first baffle and a fixed plate fixed to the frame, a slide rod with both ends fixedly connected to the first baffle and the fixed plate respectively, and a screening assembly; the screening assembly includes a first fixed block and a second connecting block slidably connected to the slide rod, and a plurality of screen bars with both ends connected to the first fixed block and the second connecting block respectively; it also includes an adjustment assembly.

[0008] The adjustment component enables synchronous adjustment of the spacing between the plurality of screen bars. The adjustment component includes a handwheel, a lead screw fixedly connected to the handwheel and disposed outside the frame, and a first connecting block threaded to the lead screw.

[0009] Furthermore, the adjustment assembly also includes a sliding plate fixedly connected to the first connecting block. The sliding plate has multiple grooves, and the outer walls of multiple connecting rods are slidably connected to the grooves of the sliding plate. One end of each rod is fixedly connected to the first fixed block. Through this series of transmission and connection relationships, the rotation operation of the handwheel is ultimately converted into the linear sliding of the first fixed block, thereby precisely changing the distance between the multiple screen bars.

[0010] Preferably, one end of the screen bar is detachably connected to the second connecting block via a fixing component; the fixing component includes a second fixing block fixed to the end of the screen bar, a third fixing block fixed to the second connecting block and having a sliding groove, and a bolt passing through the second connecting block and detachably locked to the second fixing block. The second fixing block is slidably inserted into the sliding groove of the third fixing block. This structure allows the screen bar to be replaced without complicated tools, and only requires operation of the bolt.

[0011] Preferably, the fixing component further includes a limiting block, which is fixed to the second fixing block and slides in cooperation with the sidewall of the groove of the third fixing block. This design can further enhance the stability of the structure after the second fixing block is locked, and prevent the screen bar from swaying laterally during vibration operation.

[0012] Preferably, the automatic soil shaking device further includes a conveying shaking plate, which is disposed in front of the feed end of the screening component and is used to scoop up the peanut plants from the soil and convey them backward.

[0013] Preferably, the automatic soil shaking device further includes a transmission component, which is fixedly connected to the frame and driven to the conveying shaking plate, providing continuous vibration power to the conveying shaking plate and the entire screening process.

[0014] Preferably, the automatic soil shaking device further includes a collection frame, which is located below the plurality of screen bars. The bottom and side walls of the collection frame are provided with gaps for soil clods to leak out. The gaps constitute a secondary screening structure, which can further separate and discharge small soil clods mixed in with the peanuts while collecting them.

[0015] Preferably, a door is provided on one side of the collection frame to facilitate and quickly empty the peanuts inside the frame after the collection operation is completed.

[0016] Preferably, the automatic soil shaking device further includes a second baffle, which is fixed on the frame and located above the discharge end of the plurality of screen bars. Its function is to block larger roots and weeds during the screening process and guide them out of the machine body to prevent them from being mixed into the collection box below.

[0017] This utility model has the following beneficial effects: 1. This utility model, by setting an adjustment assembly composed of a handwheel, lead screw, sliding plate and connecting rod, realizes the synchronous adjustment of the spacing of multiple screen bars, which solves the problem of low screening efficiency or high loss rate caused by the fixed spacing of screen bars in existing peanut harvesting devices and their inability to adapt to peanuts of different sizes. It achieves the technical effect of accurately matching peanut size, improving screening accuracy and equipment versatility.

[0018] 2. This utility model uses a detachable fixing component that combines bolts with a sliding groove and a slider to install the screen bars, which solves the problems of complicated, time-consuming and labor-intensive screen bar replacement and maintenance in the prior art. It achieves the technical effect of quickly and conveniently disassembling and assembling individual screen bars, simplifying the maintenance process and reducing equipment operating costs.

[0019] 3. This utility model solves the problem of insufficient thoroughness of traditional single-stage screening and the presence of many fine soil clumps in the harvested peanuts by setting gaps in the peanut collection frame that allow soil clumps to pass through, which, together with the sieve bars above, form a two-stage screening structure. This achieves the technical effect of secondary separation of soil clumps and effectively improves the cleanliness of the final peanuts. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of an automatic soil-shaking device for a peanut harvester proposed in this utility model; Figure 2 This is a schematic diagram of the frame door structure of the automatic soil-shaking device for a peanut harvester proposed in this utility model; Figure 3 This is a schematic diagram of the first fixed block of the automatic soil-shaking device for a peanut harvester proposed in this utility model; Figure 4This is a schematic diagram of the sliding plate part of the automatic soil-shaking device for a peanut harvester proposed in this utility model; Figure 5 This is a schematic diagram of the screen bar structure of the automatic soil-shaking device for a peanut harvester proposed in this utility model.

[0021] Legend: 1. Conveying swaying plate; 2. Frame; 3. Transmission assembly; 4. Adjustment assembly; 401. First fixing block; 402. Sliding plate; 403. Handwheel; 404. First baffle; 405. Fixing plate; 406. Screen bar; 407. Slide rod; 408. First connecting block; 409. Connecting rod; 410. Lead screw; 5. Frame door; 6. Second baffle; 7. Collection frame; 8. Fixing assembly; 801. Second fixing block; 802. Limiting block; 803. Third fixing block; 804. Bolt; 805. Second connecting block. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Example

[0023] Please refer to Figures 1 to 5 This utility model provides an automatic soil-shaking device for a peanut harvester, which aims to solve the problems in the prior art where the fixed spacing of the screen bars 406 in the peanut harvester results in poor adaptability and inconvenient replacement and maintenance of the screen bars 406.

[0024] like Figures 1 to 4 As shown, the automatic soil-shaking device of the peanut harvester includes a frame 2, which is the installation base of the entire device. The first baffle 404 and the fixed plate 405 are both fixed on the frame 2. The two ends of the slide rod 407 are respectively fixedly connected to the first baffle 404 and the fixed plate 405, thus forming a stable support frame. The screening component is installed on the support frame. The screening component includes a first fixed block 401 and a second connecting block 805. The first fixed block 401 and the second connecting block 805 are both slidably connected to the slide rod 407. The screening component also includes multiple screen bars 406, which are arranged in parallel at intervals. The two ends of the screen bars 406 are respectively connected to the first fixed block 401 and the second connecting block 805, thereby forming a screening area with adjustable spacing.

[0025] like Figure 3 and Figure 4As shown, the automatic soil-shaking device also includes an adjustment component 4, which is used to precisely adjust the spacing between multiple screen bars 406. The adjustment component 4 includes a handwheel 403, which is fixedly connected to a lead screw 410. The lead screw 410 is located outside the frame 2, and a first connecting block 408 is threaded onto the lead screw 410. A sliding plate 402 is fixedly connected to the first connecting block 408. Multiple grooves are provided on the sliding plate 402, and the outer walls of multiple connecting rods 409 are slidably connected to the grooves of the sliding plate 402. One end of the connecting rod 409 is fixedly connected to... When the handwheel 403 is rotated, the handwheel 403 drives the lead screw 410 to rotate. The rotation of the lead screw 410 drives the threaded first connecting block 408 to move along the axial direction of the lead screw 410. The first connecting block 408 drives the sliding plate 402 to move synchronously. The sliding plate 402 pulls or pushes the first fixed block 401 through multiple connecting rods 409 in its groove, so that the first fixed block 401 slides smoothly along the sliding rod 407, thereby driving the multiple screen bars 406 connected to it to move synchronously, realizing the uniform adjustment of the spacing of the screen bars 406.

[0026] To address the technical problem of inconvenient replacement and maintenance of the screen bar 406, in this embodiment, the screen bar 406 and the second connecting block 805 are detachably connected through a fixing component 8.

[0027] Please refer to the following carefully. Figure 2 and Figure 5 The structure of the fixing component 8 will be described in detail below: The fixing component 8 includes a second fixing block 801 fixed to the end of the screen bar 406, a third fixing block 803 fixed to the second connecting block 805 and having a sliding groove, and a bolt 804 passing through the second connecting block 805. In the assembled state, the second fixing block 801 is slidably inserted into the sliding groove of the third fixing block 803, and the bolt 804 is detachably locked onto the second fixing block 801, thereby firmly confining the second fixing block 801 within the sliding groove of the third fixing block 803. When it is necessary to remove the screen bar 406, simply unscrew the bolt 804 to release the locking of the second fixing block 801, and then slide the second fixing block 801 together with the screen bar 406 it fixes out of the sliding groove of the third fixing block 803, achieving the purpose of quick replacement. To further improve the stability of the screen bar 406 during the screening process, the fixing component 8 also includes a limiting block 802 fixed on the second fixing block 801. The shape of the limiting block 802 is in sliding fit with the side wall of the groove of the third fixing block 803, which can effectively prevent the second fixing block 801 from swaying left and right after it is installed in place.

[0028] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, in order to achieve the digging, conveying and preliminary screening of peanut plants, such as Figure 1 As shown, the device also includes a conveying swaying plate 1 and a transmission assembly 3. The conveying swaying plate 1 is located in front of the feed end of the screening assembly. The transmission assembly 3 is fixedly connected to the frame 2 and driven to the conveying swaying plate 1, providing a vibration source for the entire screening process.

[0029] As another preferred embodiment, in order to collect the peanuts after being sieved by sieve bar 406 and to achieve secondary separation of soil clods, such as Figures 1 to 3 As shown, the device also includes a collection frame 7, which is located below multiple sieve bars 406. The bottom and side walls of the collection frame 7 are provided with gaps for soil clods to leak out. In order to facilitate the pouring out of the peanuts in the collection frame 7, a frame door 5 is provided on one side of the collection frame 7.

[0030] As another preferred embodiment, to prevent larger peanut roots, stems, and field debris from falling into the collection frame 7, such as... Figure 1 and Figure 3 As shown, the device also includes a second baffle 6, which is fixed on the frame 2 and located above the discharge end of the plurality of screen bars 406.

[0031] The working principle of the automatic soil-shaking device of this peanut harvester is as follows: During peanut harvesting, the conveyor vibrating plate 1, driven by the transmission component 3, vibrates and enters the soil, scooping up the peanut plants along with the fruits, roots, and soil, and conveying them upwards and backwards to the screening area composed of multiple screen bars 406. Under continuous vibration, smaller peanuts and soil clods fall through the gaps between the screen bars 406 into the collection frame 7 below, while larger roots and debris are blocked by the second baffle 6 and guided out of the machine. The soil clods that fall into the collection frame 7 will leak out from the gaps at the bottom of the collection frame 7 under vibration, thus achieving secondary separation of peanuts and soil clods. After the operation is completed, the frame door 5 on the collection frame 7 can be opened to easily pour out the collected peanuts.

[0032] When it is necessary to adapt to different varieties or sizes of peanuts, the operator turns the handwheel 403 in the adjustment component 4. The handwheel 403 drives the lead screw 410 to rotate through the transmission connection. Since the first connecting block 408 is threadedly connected to the lead screw 410, the rotation of the lead screw 410 will drive the first connecting block 408 to move along its axial direction, thereby driving the fixedly connected sliding plate 402 to translate. The sliding plate 402, through its sliding groove and the linkage with multiple connecting rods 409, pulls or pushes the first fixed block 401, so that the first fixed block 401 and the second connecting block 805 slide synchronously along the slide rod 407, thereby driving all the screen bars 406 to change their spacing synchronously. The whole adjustment process is stable and reliable, and can accurately adapt to peanuts of different sizes.

[0033] When it is necessary to disassemble and replace the screen bar 406, first unscrew the bolt 804 in the fixing assembly 8 to release the lock on the second fixing block 801. Then pull the screen bar 406 to be replaced upwards. The second fixing block 801 and the limiting block 802 fixed thereto will slide out together along the groove of the third fixing block 803 on the second connecting block 805 to complete the disassembly. The installation is done in reverse. The limiting block 802 can effectively prevent the screen bar 406 from shaking left and right after installation, ensuring the stability of the screening operation.

[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. An automatic soil-shaking device for a peanut harvester, comprising: Rack (2); A first baffle (404) and a fixing plate (405) are fixed to the frame (2); A slide bar (407) has its two ends fixedly connected to the first baffle (404) and the fixing plate (405), respectively. The screening assembly includes: A first fixing block (401) and a second connecting block (805), both the first fixing block (401) and the second connecting block (805) being slidably connected to the slide rod (407); and Multiple sieve bars (406) are arranged in parallel at intervals, and their two ends are respectively connected to the first fixing block (401) and the second connecting block (805). The automatic soil-shaking device is characterized in that it further includes an adjustment component (4), which is used to adjust the spacing between the plurality of screen bars (406), and the adjustment component (4) includes: Handwheel (403); A lead screw (410) is disposed outside the frame (2) and fixedly connected to the handwheel (403); The first connecting block (408) is threadedly connected to the lead screw (410); A sliding plate (402) is fixedly connected to the first connecting block (408), and the sliding plate (402) has multiple sliding grooves; and Multiple connecting rods (409) are provided, with the outer wall of each connecting rod (409) slidably connected to one of the grooves, and one end of each connecting rod (409) being fixedly connected to the first fixing block (401).

2. The automatic soil-shaking device for a peanut harvester according to claim 1, characterized in that, One end of the screen bar (406) is detachably connected to the second connecting block (805) via a fixing component (8); the fixing component (8) includes: The second fixing block (801) is fixed to the end of the screen bar (406); The third fixing block (803) is fixed to the second connecting block (805) and has a sliding groove for the second fixing block (801) to slide into; and A bolt (804) passes through the second connecting block (805) and is detachably locked onto the second fixing block (801) to fix the second fixing block (801) in the groove.

3. The automatic soil-shaking device for a peanut harvester according to claim 2, characterized in that, The fixing component (8) further includes a limiting block (802), which is fixed on the second fixing block (801) and slides in cooperation with the groove sidewall of the third fixing block (803).

4. The automatic soil-shaking device for a peanut harvester according to claim 1, characterized in that, It also includes a conveying sway plate (1), which is disposed in front of the feed end of the screening assembly.

5. The automatic soil-shaking device for a peanut harvester according to claim 4, characterized in that, It also includes a transmission assembly (3), which is fixedly connected to the frame (2) and driven to the conveying sway plate (1).

6. The automatic soil-shaking device for a peanut harvester according to claim 1, characterized in that, It also includes a collection frame (7), which is located below the plurality of screen bars (406), and the bottom and side walls of the collection frame (7) are provided with gaps for soil clods to leak out.

7. The automatic soil-shaking device for a peanut harvester according to claim 6, characterized in that, A frame door (5) is provided on one side of the collection box (7).

8. The automatic soil-shaking device for a peanut harvester according to claim 1, characterized in that, It also includes a second baffle (6), which is fixed on the frame (2) and located above the discharge end of the plurality of screen bars (406).

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