A rice herbicide spraying device

Abstract

The utility model discloses a kind of rice herbicide spraying devices, belong to spraying device field, including rack, sliding block, guide light axis, fish eye bearing, the inside installation of rack has adjusting unit, spraying mechanism, the adjusting unit includes motor, two-way screw rod, bearing seat, adjusting sliding block, limiting nut, pin shaft, one side installation of motor has two-way screw rod, two-way screw rod is installed between two bearing seats, the surface of two-way screw rod is connected with adjusting sliding block and limiting nut, the inside installation of adjusting sliding block has pin shaft, the spraying mechanism includes main cross bar, nozzle, rectangular clamping groove, the surface of main cross bar is equidistant and has been opened with multiple groups of cylindrical groove, nozzle is installed in cylindrical groove, the surface of nozzle is connected with rectangular clamping groove;Through the cooperation between above each device, different rice varieties, different growth stages of row distance change can be quickly adapted, ensure that herbicide is accurately sprayed in rice row, reduce the drug damage to rice plant, improve weeding effect.

Description

Technical Field

[0001] This utility model relates to the field of spraying device technology, specifically a rice herbicide spraying device. Background Technology

[0002] Herbicide application is a crucial step in ensuring the normal growth of rice during the rice cultivation process.

[0003] In traditional rice herbicide spraying devices, the spacing between nozzles is mostly fixed, which cannot be flexibly adjusted according to the row spacing changes at different growth stages of rice. When the row spacing of rice changes due to different varieties, planting methods or growth cycles, it is difficult for nozzles with fixed spacing to accurately aim at the rice rows, which can easily lead to herbicide being sprayed on rice plants, causing phytotoxicity, or missing weed growth areas and affecting the weeding effect.

[0004] Meanwhile, the existing nozzle adjustment mechanism often suffers from problems such as poor transmission and low adjustment accuracy. Some devices use a single-direction screw adjustment, which cannot achieve synchronous linkage adjustment of multiple nozzles, resulting in low adjustment efficiency. In addition, the connection structure of some devices lacks angle compensation function, and jamming is easily caused by parallelism error between components during the adjustment process, affecting the stability and service life of the overall device, making it difficult to meet the high-efficiency spraying needs of large-scale rice planting.

[0005] Therefore, this utility model provides a rice herbicide spraying device to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This invention provides a rice herbicide spraying device, which aims to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a rice herbicide spraying device, comprising a frame, a sliding block, a guide shaft, and a fish-eye bearing. An adjustment unit and a spraying mechanism are installed inside the frame. The adjustment unit includes a motor, a bidirectional lead screw, a bearing seat, an adjusting slider, a limit nut, and a pin. A bidirectional lead screw is installed on one side of the motor and is installed between two bearing seats. An adjusting slider and a limit nut are connected to the surface of the bidirectional lead screw, and a pin is installed inside the adjusting slider.

[0010] As a preferred technical solution of this application, the spraying mechanism includes a main crossbar, a nozzle, and a rectangular slot. Multiple sets of cylindrical slots are equidistantly formed on the surface of the main crossbar, and nozzles are installed in the cylindrical slots. The surface of the nozzles is connected to the rectangular slots.

[0011] As a preferred technical solution of this application, a baffle-type anti-drift mechanism is installed on one side of the nozzle. The baffle-type anti-drift mechanism includes a hinge, a hinge shaft, a damping rubber ring, a fan-shaped baffle, a fixing block, an auxiliary retaining ring, and a retaining block. A cylindrical groove is opened inside the hinge, and the hinge shaft and the damping rubber ring are installed in the cylindrical groove. The damping rubber ring is installed on the surface of the hinge shaft. A fan-shaped baffle is installed on one side of the hinge shaft, and a fixing block and a retaining block are respectively installed on both sides of the fan-shaped baffle.

[0012] As a preferred technical solution of this application, an auxiliary retaining ring is installed on the front side of the hinge. The auxiliary retaining ring is used in conjunction with the fixing block, and the retaining block is used in conjunction with the rectangular retaining groove.

[0013] As a preferred technical solution of this application, the guide optical shaft is installed between two bearing fixing blocks, a sliding block is installed on the surface of the guide optical shaft, and a connecting block is installed on the inner side of the sliding block.

[0014] As a preferred technical solution of this application, a fisheye bearing is installed between the adjustment unit and the guide optical axis, with a pin connected to one side of the fisheye bearing and a connecting block connected to the other side.

[0015] As a preferred technical solution of this application, the adjustment unit and the guide optical axis are parallel to each other, and the number of sliding blocks is the same as that of fisheye bearings.

[0016] (III) Beneficial Effects

[0017] By using a two-way lead screw and an adjusting slider to drive multiple nozzles to move synchronously in opposite directions, the nozzle spacing can be flexibly and precisely adjusted. This allows for quick adaptation to changes in row spacing for different rice varieties and growth stages, ensuring that herbicides are accurately sprayed between rice rows, reducing herbicide damage to rice plants and improving weed control.

[0018] The fisheye bearing's connection structure ensures the rigidity of power transmission and eliminates parallelism errors between components through angle compensation, preventing mechanism jamming during adjustment, improving the smoothness and stability of the overall device operation, and extending the equipment's service life.

[0019] The overall structure enables the coordinated adjustment of multiple nozzles, which greatly improves adjustment efficiency, reduces manual operation time, adapts to the operational needs of large-scale rice planting, and reduces labor intensity compared to the traditional single nozzle adjustment method. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a rice herbicide spraying device;

[0021] Figure 2 This is a schematic diagram of the structure of the regulating unit in a rice herbicide spraying device;

[0022] Figure 3 This is a schematic diagram of the spraying mechanism in a rice herbicide spraying device;

[0023] Figure 4 This is a schematic diagram of the adjusting mechanism in a rice herbicide spraying device;

[0024] Figure 5 This is a schematic diagram of a baffle-type anti-drift mechanism in a rice herbicide spraying device.

[0025] In the picture:

[0026] 1. Frame; 2. Adjustment unit; 201. Motor; 202. Two-way lead screw; 203. Bearing seat; 204. Adjusting slider; 205. Limit nut; 206. Pin; 3. Sliding block; 301. Connecting block; 4. Guide shaft; 5. Fisheye bearing; 6. Spraying mechanism; 601. Main crossbar; 602. Nozzle; 603. Rectangular slot; 7. Baffle-type anti-drift mechanism; 701. Hinge; 702. Hinge shaft; 703. Damping rubber ring; 704. Fan-shaped baffle; 705. Fixing block; 706. Auxiliary retaining ring; 707. Locking block. Detailed Implementation

[0027] 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.

[0028] This utility model provides a rice herbicide spraying device, including an adjustment unit 2, a guide optical shaft 4, a spraying mechanism 6, and a baffle-type anti-drift mechanism 7, as shown below. Figure 1-5 As shown, when the device is started, the output shaft of the motor 201 is rigidly connected to the bidirectional lead screw 202 through a coupling, directly converting the rotational motion into the rotational power of the lead screw, providing an efficient and delay-free drive source for the adjustment unit 2, driving the bidirectional lead screw 202 to rotate under the support of the bearing seat 203. The left-hand and right-hand threads on the surface of the bidirectional lead screw 202 respectively mesh with the adjusting sliders 204 on both sides, converting the rotational motion of the lead screw into the linear motion of the sliders. Because the threads are turned in opposite directions, the sliders on both sides move synchronously in opposite directions along the lead screw, thereby increasing or decreasing the distance. The limit nut 205 limits the maximum stroke of the slider by contacting the bearing seat 203, preventing over-adjustment.

[0029] The movement of the adjusting slider 204 is transmitted to the fisheye bearing 5 through the pin 206. The pin 206 passes through the through hole of the adjusting slider 204 and is interference-fitted with one side of the fisheye bearing 5, while the other side of the fisheye bearing 5 is hinged to the connecting block 301 with clearance. This connection ensures the rigid force transmission between the slider and the connecting rod, and also eliminates the parallelism error between the linear motion of the slider and the guiding motion of the sliding block 3 through the angle compensation function of the fisheye bearing 5, thus avoiding mechanism jamming. Subsequently, the fisheye bearing 5 drives the sliding block 3 to move parallel along the guide optical axis 4 through the connecting block 301. The inner hole of the sliding block 3 and the guide optical axis 4 are clearance-fitted. The guide optical axis 4 is rigidly installed on the frame 1 through the bearing fixing block, providing a linear motion guide for the sliding block 3, ensuring that it drives the main crossbar 601 to make a stable translational movement, and preventing the nozzle 602 from deviating from the spraying target. At this time, the rigid connection between the sliding block 3 and the main crossbar 601 causes the main crossbar 601 to move synchronously, thereby driving the nozzle 602 in the cylindrical groove to change the spacing, achieving precise matching with the rice row spacing.

[0030] During spraying, the fan-shaped baffle 704 functions through the cooperation of the hinge shaft 702 and the damping rubber ring 703. The hinge shaft 702 is rigidly connected to the fan-shaped baffle 704, and the damping rubber ring 703 built into the bushing is interference-fitted with the hinge 701. The frictional resistance allows the baffle to hover at various angles. At the same time, the hinge 701 is fixedly connected to the nozzle mounting seat, ensuring that the baffle always adjusts its angle around the spray center of the nozzle 602, accurately controlling the anti-drift range. It can be adjusted to the optimal anti-drift angle and hovered according to the wind direction. In the event of strong winds, the fixing block 705 is engaged with the auxiliary retaining ring 706, or the retaining block 707 is engaged with the rectangular retaining groove 603. The rigid engagement of the retaining block 707 and the retaining groove enhances the reliability of the damping positioning and can resist the angle deviation caused by strong winds or mechanical vibrations, forming a double fixing mechanism to ensure that the baffle stably plays the role of airflow barrier and accurately controls the herbicide droplets in the rice row area.

[0031] Working principle: After the motor 201 starts, its output shaft drives the bidirectional lead screw 202 to rotate through the coupling. The bidirectional lead screw 202 rotates stably under the support of the bearing seat 203. Since the surface of the bidirectional lead screw 202 is provided with left-hand and right-hand threads, they mesh with the adjusting sliders 204 on both sides respectively. Under the action of thread transmission, the adjusting sliders 204 on both sides move synchronously in opposite directions along the bidirectional lead screw 202, thereby increasing or decreasing the distance between them. When the limit nut 205 abuts against the bearing seat 203, it limits the maximum travel of the adjusting slider 204 to avoid over-adjustment.

[0032] The movement of the adjusting slider 204 is transmitted to the fisheye bearing 5 through the pin 206. The fisheye bearing 5 connects the pin 206 and the connecting block 301. This device eliminates parallelism error through angle compensation of the fisheye bearing 5 and prevents the mechanism from jamming. The fisheye bearing 5 drives the sliding block 3 to move parallel along the guide optical axis 4 through the connecting block 301. The inner hole of the sliding block 3 is clearance-fitted with the guide optical axis 4 to ensure smooth sliding.

[0033] The sliding block 3 is rigidly connected to the main crossbar 601. When the sliding block 3 moves, it drives the main crossbar 601 to move synchronously. The nozzles 602 installed in the cylindrical groove on the surface of the main crossbar 601 move with the main crossbar 601, thereby changing the spacing between the nozzles 602, achieving precise matching with the rice row spacing, and completing the multi-nozzle linkage adjustment process.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rice herbicide spraying device, comprising a frame (1), a sliding block (3), a guide optical axis (4), and a fisheye bearing (5), characterized in that: The frame (1) is equipped with an adjustment unit (2) and a spraying mechanism (6). The adjustment unit (2) includes a motor (201), a two-way lead screw (202), a bearing seat (203), an adjustment slider (204), a limit nut (205), and a pin (206). The two-way lead screw (202) is installed on one side of the motor (201). The two-way lead screw (202) is installed between two bearing seats (203). The surface of the two-way lead screw (202) is connected to the adjustment slider (204) and the limit nut (205). The pin (206) is installed inside the adjustment slider (204).

2. The rice herbicide spraying device according to claim 1, characterized in that: The spraying mechanism (6) includes a main crossbar (601), a nozzle (602), and a rectangular slot (603). Multiple sets of cylindrical slots are equidistantly opened on the surface of the main crossbar (601), and the nozzle (602) is installed in the cylindrical slot. The surface of the nozzle (602) is connected to the rectangular slot (603).

3. The rice herbicide spraying device according to claim 2, characterized in that: A baffle-type anti-drift mechanism (7) is installed on one side of the nozzle (602). The baffle-type anti-drift mechanism (7) includes a hinge (701), a hinge shaft (702), a damping rubber ring (703), a fan-shaped baffle (704), a fixing block (705), an auxiliary retaining ring (706), and a retaining block (707). A cylindrical groove is provided inside the hinge (701). The hinge shaft (702) and the damping rubber ring (703) are installed in the cylindrical groove. The damping rubber ring (703) is installed on the surface of the hinge shaft (702). A fan-shaped baffle (704) is installed on one side of the hinge shaft (702). A fixing block (705) and a retaining block (707) are installed on both sides of the fan-shaped baffle (704).

4. The rice herbicide spraying device according to claim 3, characterized in that: An auxiliary retaining ring (706) is installed on the front side of the hinge (701). The auxiliary retaining ring (706) is used in conjunction with the fixing block (705), and the retaining block (707) is used in conjunction with the rectangular retaining groove (603).

5. The rice herbicide spraying device according to claim 1, characterized in that: The guide optical shaft (4) is installed between two bearing fixing blocks. A sliding block (3) is installed on the surface of the guide optical shaft (4), and a connecting block (301) is installed on the inner side of the sliding block (3).

6. The rice herbicide spraying device according to claim 1, characterized in that: A fisheye bearing (5) is installed between the adjustment unit (2) and the guide optical axis (4). One side of the fisheye bearing (5) is connected to a pin (206), and the other side is connected to a connecting block (301).

7. The rice herbicide spraying device according to claim 1, characterized in that: The adjustment unit (2) is parallel to the guide optical axis (4), and the number of sliding blocks (3) is the same as that of fisheye bearings (5).

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