Agricultural self-propelled pesticide spraying machine

Abstract

The utility model relates to an agricultural self-propelled pesticide spraying machine, and belongs to the technical field of agricultural pesticide spraying equipment. Comprising a walking mechanism and a medicine supply mechanism. A pesticide spraying frame is arranged on the hinge four-connecting-rod height adjusting mechanism; a big arm is hinged to each of the two ends of the pesticide spraying frame; a hole groove is formed in the large arm, and a sliding rod is installed in the hole groove in a sliding mode. A retractable hydraulic rod is hinged to the pesticide spraying frame, and the free end of the retractable hydraulic rod is hinged to the sliding rod; one end of the rotating semicircle is hinged with the large arm, and the other end of the rotating semicircle is hinged with the small arm; one end of the connecting rod is hinged with the sliding rod, and the other end is hinged with the rotating semicircle; and a nozzle is arranged on the small arm. The large arm and the small arm used for mounting the spray head can be folded and contracted under the action of the contraction hydraulic rod, it is effectively ensured that equipment can normally walk on a common road, and use is convenient; when pesticide is sprayed, the large arm and the small arm are unfolded, the pesticide spraying range can be effectively expanded, and the working efficiency of pesticide spraying is improved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural spraying equipment technology, and in particular to an agricultural self-propelled sprayer. Background Technology

[0002] A pesticide sprayer is a type of agricultural spraying machinery that mixes water and pesticide solution and sprays the liquid onto the surface of crops under pressure.

[0003] Existing semi-automatic spraying equipment mainly consists of a walking mechanism and a spraying mechanism. The walking mechanism is generally an agricultural cart or agricultural tractor, while the spraying mechanism mainly consists of a pesticide supply mechanism and a spraying mechanism. The spraying mechanism is mostly composed of a rod of varying length and a nozzle mounted on the rod. During application, the walking mechanism drives the spraying mechanism to move through the field, while the pesticide supply mechanism pumps the mixed pesticide to the nozzle, which then sprays the pesticide onto the crops.

[0004] To improve the efficiency of pesticide application, the pole is designed to be relatively long, and multiple nozzles are installed on the pole. When walking on ordinary roads, the long pole will affect the normal movement of the equipment and make it inconvenient to use. Utility Model Content

[0005] To solve or partially solve the problems existing in related technologies, this utility model provides an agricultural self-propelled sprayer, which aims to solve the technical problem that the existing spraying poles cannot be folded, making it difficult for the equipment to move on ordinary roads.

[0006] The aforementioned self-propelled agricultural sprayer includes a walking mechanism, a pesticide supply mechanism, and a hinged four-bar height adjustment mechanism.

[0007] The walking mechanism is equipped with a drug supply mechanism, and the front end of the walking mechanism is equipped with a hinged four-bar height adjustment mechanism, which is equipped with a sprayer.

[0008] The spraying frame has a large arm hinged to each end; the large arm has a slot extending along the length of the large arm, and a slide rod is slidably installed in the slot; a retractable hydraulic rod is hinged to the spraying frame, and the free end of the retractable hydraulic rod is hinged to the slide rod.

[0009] The free end of the upper arm is hinged to the forearm, one end of the rotating semicircle is hinged to the upper arm, and the other end is hinged to the forearm; one end of the connecting rod is hinged to the sliding rod, and the other end of the connecting rod is hinged to the middle of the rotating semicircle.

[0010] The forearm is equipped with a nozzle, which is connected to the drug supply mechanism via a pipe.

[0011] In some embodiments, the hinged four-bar height adjustment mechanism includes a first link, a second link, a column, a rectangular mounting bracket, and a drive cylinder;

[0012] Two columns are vertically installed on each side of the front end of the walking mechanism, and a rectangular mounting frame is vertically installed in front of the columns.

[0013] The upper end of the column is hinged to one end of the first connecting rod, the other end of the first connecting rod is hinged to the upper part of the rectangular mounting frame, the lower end of the column is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged to the lower part of the rectangular mounting frame.

[0014] One end of the drive cylinder is hinged to the column, and the other end is hinged to the first connecting rod.

[0015] In some embodiments, the traveling mechanism includes a frame, traveling wheels, a steering column, and a steering gear;

[0016] Two steering columns are rotatably mounted at the front bottom of the frame. The lower end of the steering columns is equipped with a front shock absorber, and the lower end of the front shock absorber is equipped with a front wheel.

[0017] A first steering rod is provided on the front side of the steering column, and a second steering rod is hinged between the first steering rods on the two steering columns. A steering gear is provided at the bottom of the frame, and a third steering rod is provided on the output shaft of the steering gear. The free end of the third steering rod is hinged to the middle of the second steering rod.

[0018] The rear end of the vehicle frame is equipped with a rear shock absorber, and the lower end of the rear shock absorber is equipped with a rear wheel.

[0019] In some designs, a height-adjusting hydraulic cylinder is provided between the front shock absorber and the front wheel, and between the rear shock absorber and the rear wheel.

[0020] In some embodiments, the drug supply mechanism includes a drug dosing tank, a stirring motor, and a drug supply pump;

[0021] The dosing tank is rotatably mounted on the vehicle frame and is driven to rotate by a stirring motor;

[0022] One end of the dosing tank is connected to the input end of the dosing pump via an output pipe, and the output end of the dosing pump is connected to the nozzle via a pipe.

[0023] The technical solution provided by this utility model can include the following beneficial effects:

[0024] The boom and forearm used in this application for installing the nozzles can be folded and retracted under the action of the retracting hydraulic rod, effectively ensuring that the equipment can travel normally on ordinary roads and is easy to use; when spraying pesticides, the boom and forearm can be extended to effectively expand the spraying range and improve the work efficiency of pesticide spraying.

[0025] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0026] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0027] Figure 1 This is a schematic diagram of the structure of the sprayer shown in an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the forearm retracted state of the sprayer as shown in an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of the sprayer when both the boom and forearm are retracted, as shown in an embodiment of the present invention.

[0030] Figure 4 yes Figure 2 Enlarged view of point B;

[0031] Figure 5 yes Figure 1 Enlarged view of point A;

[0032] Figure 6 This is a schematic diagram of the hinged four-bar height adjustment mechanism of the sprayer shown in this embodiment of the utility model;

[0033] Figure 7 This is a partial structural schematic diagram of the walking mechanism of the sprayer shown in an embodiment of the present invention;

[0034] Figure label:

[0035] 1. Walking mechanism; 101. Frame; 102. Walking wheels; 103. Steering column; 104. Steering gear; 105. First steering rod; 106. Second steering rod; 107. Third steering rod; 108. Height adjustment hydraulic cylinder; 109. Front shock absorber; 1010. Rear shock absorber; 2. Drug supply mechanism; 201. Dosing tank; 202. Stirring motor; 203. Drug supply pump; 3. Hinge four-bar height adjustment mechanism; 301. First link; 302. Second link; 303. Column; 304. Rectangular mounting bracket; 305. Drive cylinder; 4. Drug rack; 5. Boom; 501. Groove; 6. Slide rod; 7. Retractable hydraulic rod; 8. Forearm; 9. Rotating semicircle; 10. Nozzle; 11. Connecting rod. Detailed Implementation

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but the scope of protection of the present invention is not limited to the content described.

[0037] like Figures 1-5 As shown, this application provides an agricultural self-propelled sprayer, including a walking mechanism 1, a pesticide supply mechanism 2, and a hinged four-bar height adjustment mechanism 3;

[0038] The walking mechanism 1 is equipped with a pesticide supply mechanism 2, which is used to provide pesticide mixture and output it under a certain pressure; the front end of the walking mechanism 1 is equipped with a hinged four-bar height adjustment mechanism 3, and the hinged four-bar height adjustment mechanism 3 is equipped with a spraying frame 4.

[0039] The spray frame 4 has a large arm 5 hinged to each end. Specifically, the end of the large arm 5 is provided with a slot, and the two sides of the slot are hinged to the spray frame 4. When the large arm 5 rotates to a horizontal state, that is, parallel to the spray frame 4, the inner side of the slot abuts against the spray frame 4, thereby forming a limit. The large arm 5 is provided with a slot 501 extending along the length of the large arm 5. The slot 501 is located on the upper part of the large arm 5 and close to the spray frame 4. A sliding rod 6 is slidably installed in the slot 501, so that the sliding rod 6 can move along the slot 501. A retractable hydraulic rod 7 is hinged to the spray frame 4. The free end of the retractable hydraulic rod 7 is hinged to the sliding rod 6. Specifically, the retractable hydraulic rod 7 is provided on the top surface of the spray frame 4.

[0040] The free end of the upper arm 5 is hinged to the lower arm 8. Specifically, the free end of the upper arm 5 and one end of the lower arm 8 each have a connecting section that is inclined. The connecting sections of the upper arm 5 and the lower arm 8 are hinged to each other. A limiting block is provided at the bottom of the upper arm 5 and the lower arm 8 respectively. When the upper arm 5 and the lower arm 8 are in the same straight line, the ends of the two limiting blocks abut against each other, thereby forming a limit. One end of the rotating semicircle 9 is hinged to the upper arm 5, and the other end is hinged to the lower arm 8. One end of the connecting rod 11 is hinged to the sliding rod 6, and the other end of the connecting rod 11 is hinged to the middle of the rotating semicircle 9.

[0041] When the retractable hydraulic rod 7 extends to its limit, the upper arm 5 and the lower arm 8 unfold to both sides in a straight line. The bottom of the slot of the upper arm 5 abuts against the sprayer 4, forming a limit. The ends of the limit blocks on the upper arm 5 and the lower arm 8 abut against each other, forming a limit.

[0042] When the retractable hydraulic rod 7 begins to shorten, the main arm 5 remains stationary due to gravity. The retractable hydraulic rod 7 drives the sliding rod 6 to move along the slot 501, thereby causing the rotating semicircle 9 to rotate around its hinge point with the main arm 5, which in turn causes the forearm 8 to rotate upward. When the sliding rod 6 moves to the limit position of the slot 501, the forearm 8 is folded onto the main arm 5. The retractable hydraulic rod 7 continues to shorten, driving the main arm 5 to rotate upward. When the retractable hydraulic rod 7 shortens to its limit, the main arm 5 is positioned vertically to the sprayer 4, completing the folding and retraction of the main arm 5 and the forearm 8, effectively reducing the overall width of the device, thus facilitating its movement on ordinary roads.

[0043] The forearm 8 is equipped with a nozzle 10, which is connected to the drug supply mechanism 2 via a pipe.

[0044] During operation, the liquid medicine is supplied through the supply mechanism 2 and sprayed outward through the nozzle 10 to carry out the application of medicine; the walking mechanism 1 moves to different application positions; the height of the spray frame 4 is adjusted through the hinge four-bar height adjustment mechanism 3, thereby adjusting the application height.

[0045] In some specific ways, such as Figure 6 As shown, the hinged four-bar height adjustment mechanism 3 includes a first link 301, a second link 302, a column 303, a rectangular mounting bracket 304, and a drive cylinder 305.

[0046] Two columns 303 are vertically installed on both sides of the front end of the walking mechanism 1. A rectangular mounting frame 304 is vertically installed in front of the columns 303, and the spraying frame 4 is fixedly installed on the rectangular mounting frame 304. The upper end of the column 303 is hinged to one end of the first connecting rod 301, and the other end of the first connecting rod 301 is hinged to the upper part of the rectangular mounting frame 304. The lower end of the column 303 is hinged to one end of the second connecting rod 302, and the other end of the second connecting rod 302 is hinged to the lower part of the rectangular mounting frame 304. In this way, the first connecting rod 301, the second connecting rod 302, the column 303, and the rectangular mounting frame 304 form two hinged four-bar linkages 11, so that the rectangular mounting frame 304 can always remain perpendicular to the ground.

[0047] One end of the drive cylinder 305 is hinged to the column 303, and the other end is hinged to the first connecting rod 301.

[0048] When it is necessary to adjust the spraying height, that is, when it is necessary to adjust the height of the spraying frame 4, the drive cylinder 305 is activated. When the drive cylinder 305 extends, it drives the first connecting rod 301 to rotate upward, thereby raising the height of the spraying frame 4; when the drive cylinder 305 shortens, it drives the first connecting rod 301 to rotate downward, thereby lowering the height of the spraying frame 4.

[0049] In some specific ways, such as Figure 1 and Figure 7 As shown, the walking mechanism 1 includes a frame 101, walking wheels 102, a steering column 103, and a steering gear 104;

[0050] Two steering columns 103 are rotatably mounted on the front bottom of the frame 101. A front shock absorber 109 is located at the lower end of each steering column 103, and a front wheel 102 is located at the lower end of each front shock absorber 109. A hub motor is installed inside each wheel 102 to provide the necessary driving force. A rear shock absorber 1010 is located at the rear bottom of the frame 101, and a rear wheel 102 is located at the lower end of each rear shock absorber 1010. When the vehicle is in motion, the front and rear shock absorbers 109 and 1010 dampen vibrations, contributing to smooth movement of the vehicle.

[0051] The steering column 103 is provided with a first steering rod 105 on its front side; the bottom of the frame 101 is provided with a steering gear 104, and the output shaft of the steering gear 104 is provided with a second steering rod 106. The free end of the second steering rod 106 is hinged to the two first steering rods 105 through a third steering rod 107; when the steering gear 104 is activated, it drives the second steering rod 106 to rotate. The second steering rod 106 drives the two steering columns 103 to rotate synchronously through the third steering rod 107 and the first steering rod 105, thereby realizing the steering action of the walking mechanism 1.

[0052] In this embodiment, a height-adjusting hydraulic cylinder 108 is provided between the front shock absorber 109 and the front travel wheel 102, and between the rear shock absorber 1010 and the rear travel wheel 102. The height-adjusting hydraulic cylinder 108 is used to adjust the chassis height of the travel mechanism 1, which is beneficial to improving the passability of the travel mechanism 1.

[0053] In some specific ways, such as Figure 1 As shown, the drug supply mechanism 2 includes a drug dosing tank 201, a stirring motor 202, and a drug supply pump 203; the drug dosing tank 201 is rotatably mounted on the frame 101 and is driven to rotate by the stirring motor 202; one end of the drug dosing tank 201 is connected to the input end of the drug supply pump 203 through an output pipe, and the output end of the drug supply pump 203 is connected to the nozzle 10 through a pipe.

[0054] During operation, a high concentration of pesticide and an appropriate amount of water are added to the dosing tank 201. Then, the stirring motor 202 drives the dosing tank 201 to rotate, so that the pesticide and water are mixed evenly. Then, the supply pump 203 works to draw the pesticide solution from the dosing tank 201 and input it into the nozzle 10 through the pipeline. The pesticide is then sprayed onto the crops through the nozzle 10. During the spraying process, the supply pump 203 also continuously drives the dosing tank 201 to rotate, effectively preventing pesticide deposition.

[0055] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An agricultural self-propelled sprayer, characterized in that: Includes a walking mechanism (1), a drug supply mechanism (2), and a hinged four-bar height adjustment mechanism (3); The walking mechanism (1) is provided with a drug supply mechanism (2), and the front end of the walking mechanism (1) is provided with a hinged four-bar height adjustment mechanism (3), and the hinged four-bar height adjustment mechanism (3) is provided with a sprayer (4). The spraying frame (4) has a large arm (5) hinged to each end; the large arm (5) has a slot (501) extending along the length of the large arm (5), and a slide rod (6) is slidably installed in the slot (501); the spraying frame (4) has a retractable hydraulic rod (7) hinged to it, and the free end of the retractable hydraulic rod (7) is hinged to the slide rod (6). The free end of the upper arm (5) is hinged to the lower arm (8), one end of the rotating semicircle (9) is hinged to the upper arm (5), and the other end is hinged to the lower arm (8); one end of the connecting rod (11) is hinged to the sliding rod (6), and the other end of the connecting rod (11) is hinged to the middle of the rotating semicircle (9). The forearm (8) is provided with a nozzle (10), which is connected to the drug supply mechanism (2) through a pipe.

2. The agricultural self-propelled sprayer according to claim 1, characterized in that: The hinged four-bar height adjustment mechanism (3) includes a first link (301), a second link (302), a column (303), a rectangular mounting bracket (304), and a drive cylinder (305); Two columns (303) are vertically installed on both sides of the front end of the walking mechanism (1), and a rectangular mounting frame (304) is vertically installed in front of the columns (303). The upper end of the column (303) is hinged to one end of the first connecting rod (301), the other end of the first connecting rod (301) is hinged to the upper part of the rectangular mounting frame (304), the lower end of the column (303) is hinged to one end of the second connecting rod (302), and the other end of the second connecting rod (302) is hinged to the lower part of the rectangular mounting frame (304). One end of the drive cylinder (305) is hinged to the column (303), and the other end is hinged to the first connecting rod (301).

3. The agricultural self-propelled sprayer according to claim 1, characterized in that: The walking mechanism (1) includes a frame (101), walking wheels (102), a steering column (103), and a steering gear (104). Two steering columns (103) are rotatably mounted on the bottom front end of the frame (101). A front shock absorber (109) is provided at the lower end of the steering column (103), and a front wheel (102) is provided at the lower end of the front shock absorber (109). The steering column (103) is provided with a first steering rod (105) on its front side; the bottom of the frame (101) is provided with a steering gear (104), and the output shaft of the steering gear (104) is provided with a second steering rod (106). The free ends of the second steering rod (106) are respectively hinged to the two first steering rods (105) through a third steering rod (107). The rear end of the frame (101) is provided with a rear shock absorber (1010), and the lower end of the rear shock absorber (1010) is provided with a rear wheel (102).

4. The agricultural self-propelled sprayer according to claim 3, characterized in that: A height-adjusting hydraulic cylinder (108) is provided between the front shock absorber (109) and the front wheel (102), and between the rear shock absorber (1010) and the rear wheel (102).

5. The agricultural self-propelled sprayer according to claim 3, characterized in that: The drug supply mechanism (2) includes a drug tank (201), a stirring motor (202), and a drug supply pump (203); The dosing tank (201) is rotatably mounted on the frame (101) and driven to rotate by the stirring motor (202); One end of the dosing tank (201) is connected to the input end of the dosing pump (203) through an output pipe, and the output end of the dosing pump (203) is connected to the nozzle (10) through a pipe.

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