Vibration scraper knife mechanism on garlic harvester

Abstract

The invention relates to a vibration scraper knife mechanism on a garlic harvester. The vibration scraper knife mechanism comprises an equipment rack, a transmission shaft, an eccentric shaft sleeve, a rocker arm set and a scraper knife. The transmission shaft is driven by a chain and drives the first rocker arm to reciprocate through the eccentric shaft sleeve, the second rocker arm hinged to the first rocker arm swings around the rack connecting rod, and finally the scraper knife is driven to vibrate front and back. A lifting plate is arranged in the second rocker arm, and the cutting depth of the scraper knife is adjusted through a threaded rocker; a blade is arranged on the upper side of the scraper knife to prevent grass winding, and the bottom of the scraper knife is folded to avoid a clamping mechanism. The mechanism is integrated at the front end of the harvester, soil is pre-loosened so as to reduce pulling resistance, damage to garlic bulbs is reduced, and the mechanism is suitable for different line spacing and soil conditions.

Description

Technical Field

[0001] The invention relates to the technical field of garlic harvesting equipment, in particular to a vibrating blade mechanism on a garlic harvester. Background Art

[0002] During mechanized garlic harvesting, the resistance of the garlic plants to pulling out directly affects harvesting efficiency and integrity. The applicant's patent CN119096788A provides a garlic harvesting clamping device with manually adjustable row spacing. By arranging multiple single clamping mechanisms with adjustable spacing side by side, this device solves the adaptability issue for different planting row spacings. The device utilizes a synchronous belt to clamp and lift the garlic, supplemented by designs such as wheel groove scrapers to prevent clogging and a toggle bar to straighten fallen garlic seedlings, significantly improving harvesting adaptability. However, the applicant discovered some problems during use: 1. Large resistance to lifting garlic: In hard soil or compacted plots, the garlic roots are tightly integrated with the soil. If only the clamping mechanism is used to pull the garlic upward, it is easy to cause the garlic sprouts to break or the garlic heads to be left behind, especially for deep-rooted varieties. The harvesting effect is poor.

[0003] 2. Insufficient soil disturbance: Soil pre-loosening before clamping relies on external equipment and lacks an integrated soil-breaking mechanism, resulting in greater traction during clamping and lifting, increasing equipment load and energy consumption.

[0004] 3. Risk of garlic damage: If the garlic is buried at uneven depths, hard pulling may cause scratches on the garlic skin or cause the bulb to fall off, affecting product quality.

[0005] To this end, the present application designs an integrated harvesting device that can effectively reduce the pulling resistance and reduce the damage to the garlic to solve the above problems. Summary of the Invention

[0006] In order to make up for the deficiencies in the prior art, the present invention provides a vibrating blade mechanism on a garlic harvester.

[0007] A vibrating blade mechanism on a garlic harvester includes an equipment frame and is characterized by: The front upper part of the equipment frame is rotatably connected to a transmission shaft, which is connected to a driving mechanism through a chain to drive the transmission shaft to rotate. The transmission shaft is connected to the scraper at the bottom through the transmission mechanism, and the scraper is driven to reciprocate back and forth through the rotation of the transmission shaft.

[0008] Furthermore, in order to better realize the present invention, the transmission mechanism includes a first rocker arm, one end of the first rocker arm is fixedly connected to the eccentric sleeve, the eccentric sleeve is connected to the transmission shaft through an eccentric bearing, the other end of the first rocker arm is hinged to the upper end of the second rocker arm, the middle part of the second rocker arm is fixedly connected to the third rocker arm, the third rocker arm is hinged to the frame connecting rod, and the frame connecting rod is fixedly connected to the front end of the equipment frame.

[0009] Furthermore, in order to better realize the present invention, a lift plate that can be raised and lowered is provided in the second rocker arm, and the bottom of the lift plate is connected to the shovel. The rotation of the transmission shaft drives the first rocker arm to move forward and backward, and the first rocker arm drives the second rocker arm to move up and down. When the second rocker arm moves up and down, it moves in an arc around the hinge point of the frame connecting rod, thereby driving the shovel at the bottom to move forward and backward.

[0010] Furthermore, in order to better realize the present invention, a through groove is opened in the second rocker arm, and a lifting plate is embedded in the through groove. A rocker is rotatably connected to the top of the second rocker arm. The part of the rocker inserted into the second rocker arm is provided with a thread and is threadedly connected to the lifting plate. The height position of the lifting plate is changed by rotating the rocker.

[0011] Furthermore, in order to better implement the present invention, the bottom of the lifting plate is retracted toward the inner side of the clamping mechanism of the original garlic harvester, and a blade is provided on the upper side of the lifting plate to prevent the garlic seedlings from piling up.

[0012] The beneficial effects of the present invention are: After the vibrating blade mechanism of the present invention is integrated with the garlic harvester, the harvesting efficiency is significantly improved and the damage risk is reduced. The specific effects are as follows: Greatly reduce the pulling resistance: the blade cuts into the soil before the clamping mechanism works, and pre-loosens the compacted soil layer through high-frequency back and forth vibration, reducing the bonding force between the garlic and the soil, reducing the pulling resistance, and effectively preventing the garlic seedlings from breaking or the garlic from being left behind.

[0013] Adaptable to different soil conditions: The height of the lifting platform can be adjusted steplessly by the rocker. The shoveling depth can be deepened for hard soil, while shallow operations are performed for sandy soil, ensuring the soil-breaking effect while preventing excessive disturbance.

[0014] Precisely protect the integrity of garlic: The vibrating blade uses horizontal reciprocating motion instead of traditional rotary tillage to avoid the blade directly hitting the garlic. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention installed on a garlic harvester; Figure 2 This is the second schematic diagram of the three-dimensional structure of the present invention installed on a garlic harvester; Figure 3 It is a front view of the three-dimensional structure of the present invention.

[0016] In the figure, 1. Equipment frame, 2. Drive shaft, 3. Eccentric bushing, 4. First rocker arm, 5. Second rocker arm, 6. Lifting plate, 7. Rocker, 8. Frame connecting rod, 9. Third rocker arm, 10. Blade. DETAILED DESCRIPTION

[0017] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in a variety of different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely intended to represent selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0019] Figure 1-Figure 3 This embodiment of the present invention is a vibrating blade mechanism for a garlic harvester. The vibrating blade mechanism is mounted at the front end of the frame 1 of the original garlic harvester. A drive shaft 2 receives power input from the main engine via a chain, driving the eccentric sleeve 3 fixed to it to rotate. The eccentric sleeve 3 drives the first rocker arm 4 in reciprocating motion, which in turn propels the second rocker arm 5 in an arc-shaped upward and downward swing, pivoting on the hinge point of the frame connecting rod 8. A lifting plate 6 is embedded in the through-slot of the second rocker arm 5, and the threaded portion of the rocker arm 7 engages with the lifting plate 6. Clockwise rotation of the rocker arm 7 lowers the lifting plate 6, increasing the cutting depth of the blade 10 (e.g., in hard soil conditions); counterclockwise rotation raises the blade (e.g., in sandy soil conditions). The retractable design at the bottom of the lifting plate 6 allows the blade 10 to work slightly wider than the working range of the clamping mechanism, preventing it from impacting surrounding garlic sprouts. The upper blade of the lifting plate 6 can cut the garlic sprouts, preventing a large amount of garlic sprouts from accumulating there and affecting production efficiency.

[0020] The working process of this embodiment is as follows: When the harvester moves, the blade 10 vibrates back and forth, cutting into the soil layer by 5-12 cm; the vibration wave is transmitted to the soil around the garlic, loosening it; the pre-loosened garlic plants are then clamped and lifted by the synchronous belt of the clamping mechanism at the rear, achieving low-resistance harvesting; in case of fallen garlic seedlings, the reciprocating motion of the blade 10 can also assist the toggle bar on the original harvester to straighten it.

[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and are not limiting. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A vibrating blade mechanism on a garlic harvester, comprising a device frame (1), characterized in that: The upper front end of the equipment frame (1) is rotatably connected to a transmission shaft (2), which is connected to a driving mechanism via a chain to drive the transmission shaft (2) to rotate. The transmission shaft (2) is connected to a scraper (10) at the bottom via the transmission mechanism, and the scraper (10) is driven to reciprocate forward and backward by the rotation of the transmission shaft (2).

2. The vibrating blade mechanism of the garlic harvester according to claim 1, characterized in that: The transmission mechanism comprises a first rocker arm (4), one end of the first rocker arm (4) is fixedly connected to an eccentric shaft sleeve (3), the eccentric shaft sleeve (3) is connected to a transmission shaft (2) via an eccentric bearing, the other end of the first rocker arm (4) is hinged to the upper end of a second rocker arm (5), the middle part of the second rocker arm (5) is fixedly connected to a third rocker arm (9), the third rocker arm (9) is hinged to a frame connecting rod (8), and the frame connecting rod (8) is fixedly connected to the front end of the equipment frame (1).

3. The vibrating blade mechanism of the garlic harvester according to claim 2, characterized in that: The second rocker arm (5) is provided with a lifting plate (6) that can be raised and lowered. The bottom of the lifting plate (6) is connected to a scraper (10). The transmission shaft (2) rotates to drive the first rocker arm (4) to move forward and backward. The first rocker arm (4) drives the second rocker arm (5) to move up and down. When the second rocker arm (5) moves up and down, it moves in an arc around the hinge point of the frame connecting rod (8), thereby driving the scraper (10) at the bottom to move forward and backward.

4. The vibrating blade mechanism of the garlic harvester according to claim 3, characterized in that: A through slot is formed in the second rocker arm (5), and a lifting plate (6) is embedded in the through slot. A rocker (7) is rotatably connected to the top of the second rocker arm (5). The portion of the rocker (7) inserted into the second rocker arm (5) is provided with a thread and is threadedly connected to the lifting plate (6). The height position of the lifting plate (6) is changed by rotating the rocker (7).

5. The vibrating blade mechanism of the garlic harvester according to claim 3, characterized in that: The bottom of the lifting plate (6) is retracted toward the inner side of the clamping mechanism of the original garlic harvester, and a blade is provided on the upper side of the lifting plate (6) to prevent the garlic seedlings from piling up.

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