Cross-row self-propelled spraying device suitable for hilly tea garden

Abstract

The invention relates to a row-spanning self-propelled spraying device suitable for a hilly tea garden. The row-spanning self-propelled spraying device comprises a crawler-type chassis and an angle-adjustable spraying structure, the caterpillar band chassis is composed of a chassis vertical beam, a caterpillar band connecting support, a caterpillar band inner side baffle, a caterpillar band support, a driving wheel, a guide wheel, a drag chain wheel, a bearing wheel, a chassis driving brushless motor, a chassis worm and gear speed reducer, a battery and the like. The angle-adjustable spraying structure is composed of a spraying rod PE water supply pipe hose, a spraying head, a first swinging spraying rod side frame, a second swinging spraying rod side frame, a swinging spraying rod main frame, a pitching swinging frame main frame spraying rod servo electric cylinder, an upper swinging frame servo electric cylinder, a spraying rod brushless motor, a spraying rod worm and gear speed reducer and the like. The crawler chassis structure has certain climbing and anti-overturning capacities, the defects of a movable irrigation machine for the hilly tea garden at the present stage are overcome based on adjustment of different pitching angles and different inclination angles of the spraying structure, and a feasible solution is provided for movable irrigation of the hilly tea garden.

Description

Technical Field

[0001] The invention relates to a cross-row self-propelled spraying device suitable for hilly tea gardens, and is applied in the technical field of tea garden irrigation. Background Art

[0002] As one of the important agricultural production areas in my country, the population living in hilly and mountainous areas currently accounts for about 55.7% of the total population. Economic crops such as fruit, tea, Chinese medicinal materials, and oil are planted. Among them, tea, as a crop with a large planting area, has strong competitiveness in the market. At present, most traditional sprinkler irrigation machinery is difficult to use in tea garden irrigation due to the mechanical structure and power problems. At the same time, the characteristics of tea planting are ridge planting, and the small crop planting spacing and high crop growth height also limit most irrigation machinery from being able to move in tea gardens, making it difficult to scale and mechanize tea garden irrigation. At present, most tea gardens use fixed irrigation, but there are problems such as high construction investment costs, later maintenance costs, and insufficient pressure during use. After searching, the relevant spraying devices and sprinkler machines currently used for tea garden irrigation include: a self-propelled intelligent sprinkler machine suitable for hilly tea gardens, application number 202211032624.2. This patent solves the lack of mobile sprinkler equipment in hilly tea gardens. It has good climbing ability and anti-overturning ability. However, the ridges between tea trees in most tea gardens are narrow, and the irrigation equipment has poor passability and easy damage to crops; the upright fixed spray boom has the problem that the sprinkler irrigation is greatly affected by the changes in the ground slope during operation, and the higher height limit of the whole machine also limits the operating range of the irrigation equipment. Summary of the invention

[0003] The purpose of the present invention is to provide a cross-row self-propelled spraying device suitable for hilly tea gardens, so that in an operating environment with a certain slope, the spraying device has a good field pass rate, climbing ability and obstacle crossing ability, thereby improving irrigation efficiency.

[0004] To achieve the above-mentioned invention object, the technical scheme adopted by the present invention is: a cross-row self-propelled spraying device suitable for hilly tea gardens, comprising a crawler bracket and a crawler, a crawler wheel is arranged between the crawler bracket and the crawler, a chassis vertical beam is fixedly installed on the crawler bracket, an angle-adjustable structure is installed on the chassis vertical beam, the angle-adjustable structure comprises a swing spray rod main frame, a pitch swing frame, an upper swing frame, a main frame spray rod servo electric cylinder, an upper swing frame servo electric cylinder, a spray rod brushless motor and a spray rod worm gear reducer, the pitch swing frame and the swing spray rod are connected to the swing spray rod. The upper part of the pitch swing frame is connected to the upper swing frame, the upper swing frame is connected to the chassis vertical beam, and the lower part is connected to the chassis vertical beam through the main frame spray rod servo electric cylinder, and the upper swing frame servo electric cylinder is connected to the front part of the upper swing frame, and the main frame servo electric cylinder and the swing frame servo electric cylinder are used to drive the pitch swing frame and the swing spray rod main frame to achieve pitch adjustment at different angles, and the first swing spray rod side frame and the second swing spray rod side frame are respectively installed on both sides of the swing spray rod main frame, and nozzles are installed on the first swing spray rod side frame and the second swing spray rod side frame.

[0005] In the above scheme, the first swing spray boom side frame and the second swing spray boom side frame are detachably mounted on the swing arm rods on both sides of the swing spray boom main frame through the swing arm rod pins, and the first swing spray boom side frame and the second swing spray boom side frame can rotate around the swing arm rods mounted on both sides of the swing spray boom main frame.

[0006] In the above scheme, the first swinging spray boom side frame and the second swinging spray boom side frame are fixedly mounted with a spray rack PE water supply pipe hose, the spray rack PE water supply pipe hose is mounted with a plurality of three-way joints, and the three-way joints are mounted with spray heads.

[0007] In the above scheme, a track connecting bracket is also fixed on the track bracket, and the track connecting bracket and the chassis vertical beam are fixed together. A fuselage PVC pipe is installed on the track connecting bracket, one end of the fuselage PVC pipe is connected to the PE pipe connecting interface, and the other end is connected to the spray rack PE water supply pipe hose through a connecting hose.

[0008] In the above scheme, the track wheels include a pair of driving wheels, a pair of guide wheels, two pairs of drag chain wheels, and four pairs of load-bearing wheels. The driving wheels are installed at the front of the track frame, the guide wheels are installed at the rear of the track frame, and the drag chain wheels are installed on the upper part of the track frame.

[0009] In the above scheme, the bottom of the crawler support is connected to the load-bearing wheel through a suspension swing arm, and a suspension swing arm spring is installed on the suspension swing arm.

[0010] The above scheme also includes a crawler chassis drive device, which includes a chassis drive brushless motor, a chassis worm gear reducer and a battery. The battery is installed in the middle of the crawler bracket, and the chassis drive brushless motor and the chassis worm gear reducer are installed in combination at the front of the crawler bracket.

[0011] In the above scheme, a track inner baffle is fixedly installed on the side of the track bracket to separate the track and the crops inside the track.

[0012] The beneficial effects of the present invention are as follows: (1) By combining a cross-row crawler chassis and an angle-adjustable spraying structure, the present invention fills the gap in the current mobile irrigation equipment for hilly tea gardens, and realizes a good field pass rate, climbing ability and obstacle crossing ability in an operating environment with a certain slope, thereby improving the irrigation efficiency; (2) A cross-row crawler chassis is designed, and the hollow design of the chassis facilitates the crops to pass through the middle of the chassis, thereby improving the pass rate of the spraying device; (3) The suspension structure design ensures the uniformity of irrigation during the operation process. (5) The spray rod can swing up and down and the pitch angle can be adjusted. With the suspension crawler chassis, the device has good climbing performance and good terrain adaptability, while also ensuring that the equipment can adjust the spray rod inclination angle according to the slope of the operating environment, thereby improving the uniformity of spray irrigation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a cross-sectional view of the chassis of the cross-row self-propelled spraying device described in the present invention.

[0014] Figure 2 This is a side view of the angle-adjustable spraying structure of the spraying device of the present invention.

[0015] Figure 3 This is a schematic diagram of the structure of the spray device connecting frame of the present invention.

[0016] Figure 4 It is a side view of the cross-row self-propelled spraying device described in the present invention.

[0017] In the figure, 1- crawler track; 2- load-bearing wheel; 3- chassis DC brushless motor; 4- chassis worm gear reducer; 5- driving wheel; 6- drag chain wheel; 7- battery; 8- crawler bracket; 9- guide wheel; 10- suspension swing arm compression spring; 11- suspension swing arm; 12- crawler inner baffle; 13- main frame spray rod servo electric cylinder; 14- nozzle; 15- spray frame PE water supply pipe hose; 16- first swing spray rod side frame; 17- upper swing frame servo electric cylinder; 18- swing arm rod latch; 19- spray rod brushless motor; 20- swing spray rod main frame; 21- pitch swing frame; 22- second swing spray rod side frame; 23- three-way joint; 24- spray rod worm gear reducer; 25- upper swing frame; 26- chassis vertical beam; 27- fuselage PVC pipe; 28- connecting hose; 29- PE pipe connection interface; 30- crawler track connecting bracket. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is described in more detail below in conjunction with the accompanying drawings.

[0019] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the present embodiment provides a cross-row self-propelled spraying device suitable for hilly tea gardens, which is mainly composed of a crawler chassis mechanical structure, a spraying device, a crawler chassis driving device, an angle adjustable structure and the like.

[0020] The crawler chassis mechanical structure is composed of a chassis vertical beam 26, a crawler connection bracket 30, a crawler inner baffle 12, a crawler bracket 8, etc. The chassis vertical beam 26 is used to install the spraying structure of the spraying device, and its purpose is to maintain the spraying structure higher than the tea tree for easy sprinkler irrigation; the crawler connection bracket 30 and the crawler bracket 8 are used to support the crawler chassis components; the crawler inner baffle 12 is used to separate the crawler and the crops inside the crawler. A pair of driving wheels 5, a pair of guide wheels 9, two pairs of drag chain wheels 6, and four pairs of load-bearing wheels 2 are arranged inside the crawler structure. The driving wheel 5 is installed at the front of the crawler bracket 8, and its purpose is to drive the crawler 1 to rotate. The guide wheel 9 is installed at the rear of the crawler bracket 8, and its purpose is to guide the crawler to wind and maintain the tension of the crawler. The drag chain wheel 6 is installed on the upper part of the crawler bracket 8, and its purpose is to separate the crawler bracket 8 and the crawler 1.

[0021] The crawler chassis driving device includes a chassis driving brushless motor 3, a chassis worm gear reducer 4 and a battery 7, the purpose of which is to drive the chassis driving wheel to rotate. The crawler chassis driving device is arranged on both sides of the chassis and installed inside the crawler brackets on both sides, wherein the battery 7 is installed in the middle of the crawler bracket 8, and the chassis driving brushless motor 3 and the chassis worm gear reducer 4 are installed in combination at the front of the crawler bracket 8, the purpose of which is to save the internal space of the device and lower the center of gravity of the device. The bottom 8 of the crawler bracket is installed with a suspension swing arm structure, which is composed of a suspension swing arm 11 and a suspension swing arm spring 10, the purpose of which is connected to the load-bearing wheel 2 for shock absorption during travel and to allow the crawler to better fit the ground.

[0022] The spraying structure is composed of a first swinging spray bar side frame 16, a second swinging spray bar side frame 22, a swinging spray bar main frame 20, a spray bar PE water supply pipe hose 15, and a spray head 14. The first swinging spray bar side frame 16 and the second swinging spray bar side frame 22 can rotate around the swing arm rods installed on both sides of the swinging spray bar main frame, and the purpose is to manually fold the spray bar to improve the passing rate of the spray device. The spray head 14 is connected to the PE pipe connection interface 29 through a connecting hose 28, a three-way joint 23 and the spray bar PE water supply hose 15, and a fuselage PVC pipe 27. The PE pipe connection interface 29 is connected to an external water source, and the purpose is to supply water to the spray head 14.

[0023] The angle adjustable structure is composed of a swinging spray rod main frame 20, a pitch swinging frame 21, an upper swinging frame 25, a main frame spray rod servo electric cylinder 13, an upper swinging frame servo electric cylinder 17, a spray rod brushless motor 19, a spray rod worm gear reducer 24 and other components. The pitch swinging frame 21 is connected to the swinging spray rod main frame 20, and its purpose is to rotate through the spray rod worm gear reducer 24, thereby driving the spray rod to rotate and swing up and down with the reducer as the center. The upper part of the pitch swinging frame 21 is connected to the upper swinging frame 25, and the upper swinging frame 25 is connected to the chassis vertical beam 26. The lower part is connected to the chassis vertical beam 26 through the main frame spray rod servo electric cylinder 13, and the upper swinging frame servo electric cylinder 17 is connected to the front of the upper swinging frame 25. Its purpose is to drive the pitch swinging frame 21 and the swinging spray rod main frame 20 to achieve pitch adjustment of different angles through the extension and retraction of the push rods of the main frame servo electric cylinder 13 and the swinging frame servo electric cylinder 17. The spraying structure and the angle-adjustable structure together constitute the angle-adjustable spraying structure of the spraying device.

[0024] The working principle of the present invention: when working, the PE pipe connection interface of the device is responsible for connecting the external PE pipe to supply water, and the spraying device drags the external PE pipe for irrigation operations, and supplies water to the nozzle through the PE pipe connection interface, the fuselage PVC pipe, the connecting hose, and the spray rod PE hose. The spraying device crosses the rows of tea trees. When walking, the crawler occupies the ridges on both sides of the tea plants, and the tea trees pass through the gap in the middle of the chassis. When passing through rugged and uneven roads, the deadweight of the machine forces the suspension structure spring to compress, and cooperates with the elasticity of the crawler itself to make the crawler always fit the ground. When working up and down slopes, the main frame spray rod servo electric cylinder and the upper swing frame servo electric cylinder telescopic push rod adjust the pitch angle of the pitch swing frame to keep the spray rod perpendicular to the ground; when working longitudinally on a slope, the inclination angle of the swing spray rod main frame is adjusted by rotating the spray rod reducer to maintain the balance of the fuselage.

Claims

1. A cross-row self-propelled spraying device suitable for hilly tea gardens, comprising a crawler support (8) and a crawler (1), wherein a crawler wheel is arranged between the crawler support (8) and the crawler (1), characterized in that: A chassis vertical beam (26) is fixedly mounted on the crawler support (8), and an angle-adjustable structure is mounted on the chassis vertical beam (26). The angle-adjustable structure comprises a swinging spray bar main frame (20), a pitch swinging frame (21), an upper swinging frame (25), a main frame spray bar servo electric cylinder (13), an upper swinging frame servo electric cylinder (17), a spray bar brushless motor (19), and a spray bar worm gear reducer (24). The pitch swinging frame (21) is connected to the swinging spray bar main frame (20), and the upper portion of the pitch swinging frame (21) is connected to the upper swinging frame (25), and the upper swinging frame (25) is connected to the chassis vertical beam (26). The lower part is connected to the chassis vertical beam (26) through the main frame spray rod servo electric cylinder (13), the upper swing frame servo electric cylinder (17) is connected to the front part of the upper swing frame (25), and the pitch swing frame (21) and the swing spray rod main frame (20) are driven by the main frame servo electric cylinder (13) and the swing frame servo electric cylinder (17) to achieve pitch adjustment of different angles, and the first swing spray rod side frame (16) and the second swing spray rod side frame (22) are respectively installed on both sides of the swing spray rod main frame (20), and the first swing spray rod side frame (16) and the second swing spray rod side frame (22) are installed with a spray head (14).

2. A self-propelled spraying device suitable for hilly tea gardens according to claim 1, characterized in that: The first swing boom side frame (16) and the second swing boom side frame (22) are detachably mounted on swing booms on both sides of a swing boom main frame (20) via swing boom latches (18); the first swing boom side frame (16) and the second swing boom side frame (22) are rotatable around the swing booms mounted on both sides of the swing boom main frame.

3. A self-propelled spraying device suitable for hilly tea gardens according to claim 1 or 2, characterized in that: A spray frame PE water supply pipe hose (15) is fixedly mounted on the first swing spray bar side frame (16) and the second swing spray bar side frame (22), a plurality of three-way connectors (23) are mounted on the spray frame PE water supply pipe hose (15), and a spray head (14) is mounted on the three-way connector (23).

4. The cross-row self-propelled spraying device suitable for hilly tea gardens according to claim 3, characterized in that: A crawler connection bracket (30) is also fixed on the crawler bracket (8), and the crawler connection bracket (30) and the chassis vertical beam (26) are fixed together. A fuselage PVC pipe (27) is installed on the crawler connection bracket (30), and one end of the fuselage PVC pipe (27) is connected to the PE pipe connection interface (29), and the other end is connected to the spray rack PE water supply pipe hose (15) through a connecting hose (28).

5. The cross-row self-propelled spraying device suitable for hilly tea gardens according to claim 1, characterized in that: The track wheels include a pair of driving wheels (5), a pair of guide wheels (9), two pairs of drag chain wheels (6), and four pairs of load-bearing wheels (2). The driving wheels (5) are mounted on the front of the track frame (8), the guide wheels (9) are mounted on the rear of the track frame (8), and the drag chain wheels (6) are mounted on the upper part of the track frame (8).

6. The cross-row self-propelled spraying device suitable for hilly tea gardens according to claim 5, characterized in that: The bottom of the crawler support (8) is connected to the load-bearing wheel (2) via a suspension swing arm (11), and a suspension swing arm spring (10) is installed on the suspension swing arm (11).

7. The cross-row self-propelled spraying device suitable for hilly tea gardens according to claim 1, characterized in that: The invention also comprises a crawler chassis driving device, wherein the crawler chassis driving device comprises a chassis driving brushless motor (3), a chassis worm gear reducer (4) and a battery (7), wherein the battery (7) is installed in the middle of the crawler bracket (8), and the chassis driving brushless motor (3) and the chassis worm gear reducer (4) are installed in combination at the front of the crawler bracket (8).

8. The cross-row self-propelled spraying device suitable for hilly tea gardens according to claim 1, characterized in that: The side of the crawler support (8) is also fixedly mounted with a crawler inner baffle (12) for separating the crawler and the crops inside the crawler.

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