Sprayer power system

Abstract

The utility model discloses a kind of power systems of sprayer, it is related to power system technical field, including the power installation frame being arranged at the power room of sprayer, the front side of the power room is equipped with medicine box and rear side is equipped with air-sending spraying device;Engine is installed on the power installation frame, front power shaft and rear power shaft are equipped on the engine, the tank bottom of the medicine box is equipped with the walking installation frame being fixedly arranged opposite the power installation frame;Walking transmission shaft is rotatably installed in the side of the power installation frame, the walking transmission shaft is transmission connection with the front power shaft;Walking variable speed assembly is installed on the walking installation frame, and the output end of the walking variable speed assembly is used to connect front axle and / or rear axle, universal coupling mechanism is installed between the input end of the walking variable speed assembly and the walking transmission shaft.The utility model realizes efficient transmission and multi-power supply under single power drive.

Description

Technical Field

[0001] This utility model relates to the field of power system technology, and in particular to a power system for a sprayer. Background Technology

[0002] A wind-assisted sprayer is a plant protection machine that uses a powerful airflow provided by a fan to deliver sprayed droplets to plants. Based on chassis type, it can be divided into towed and self-propelled types. A self-propelled sprayer, as the name suggests, is a sprayer with its own driving mechanism. Its structure, from front to back, generally consists of a cab, a pesticide tank, a power compartment, and a wind-assisted spraying device. The power compartment needs to provide power for the fan, the driving mechanism, and the spraying mechanism, all powered by an engine. Among these, the driving mechanism is crucial for operation. Considering the complexity of the terrain in the spraying area, reliability, and ease of maintenance, mechanical transmission is preferred for power drive, especially for the driving mechanism. Therefore, a high-efficiency transmission system with a single power drive is needed to achieve the aforementioned multiple power supplies, and this invention arises from this need. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a sprayer power system that achieves efficient transmission and multiple power supply under single power drive.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a sprayer power system, including a power mounting frame installed in the power chamber of the sprayer, a medicine tank is provided at the front side of the power chamber and an air-assisted spraying device is provided at the rear side; an engine is mounted on the power mounting frame, the engine is provided with a front power shaft and a rear power shaft, and a traveling mounting frame is provided at the bottom of the medicine tank and fixedly arranged relative to the power mounting frame; a traveling drive shaft is rotatably mounted on the side of the power mounting frame, and the traveling drive shaft is drivingly connected to the front power shaft; a transversely arranged traveling transmission assembly is mounted on the traveling mounting frame, the output end of the traveling transmission assembly is used to connect the front axle and / or the rear axle, and a universal joint mechanism is installed between the input end of the traveling transmission assembly and the traveling drive shaft.

[0005] As a preferred technical solution, a driving wheel for travel transmission is installed on the front power shaft, a driven wheel for travel transmission is installed on the travel transmission shaft, and a travel transmission chain is installed on both the driving wheel for travel transmission and the driven wheel for travel transmission.

[0006] As a preferred technical solution, a tensioning swing arm is oscillatingly mounted on the power mounting frame, a tensioning pressure roller is mounted on the free end of the tensioning swing arm, and a tensioning force applicator is mounted on the power mounting frame to drive the tensioning pressure roller to press against the walking transmission chain belt.

[0007] As a preferred technical solution, two bearing mechanisms are fixedly installed on the power mounting frame, and the travel drive shaft is jointly installed on the two bearing mechanisms.

[0008] As a preferred technical solution, a spray mounting bracket is provided on the power mounting bracket on the opposite side of the travel drive shaft, and a spray pump is fixedly mounted on the spray mounting bracket. The input shaft of the spray pump is connected to the front power shaft for transmission.

[0009] As a preferred technical solution, a spray drive drive wheel is installed on the front power shaft, a spray drive driven wheel is installed on the input shaft of the spray pump, and a spray drive chain belt is installed on both the spray drive drive wheel and the spray drive driven wheel.

[0010] As a preferred technical solution, a stirring drive shaft is rotatably mounted on the spray mounting bracket, and the stirring drive shaft is drivenly connected to the input shaft of the spray pump; a stirring main shaft is rotatably mounted on the medicine tank, the stirring main shaft is equipped with a stirring structure, and one end of the stirring main shaft extending out of the medicine tank is drivenly connected to the stirring drive shaft.

[0011] As a preferred technical solution, a fan transmission mechanism is fixedly installed on the engine or the power mounting frame at the rear power shaft. A clutch mechanism is provided between the input end of the fan transmission mechanism and the rear power shaft, and the output end of the fan transmission mechanism is used to drive the fan.

[0012] Due to the adoption of the above technical solution, the sprayer power system includes a power mounting frame installed in the power chamber of the sprayer. A medicine tank is located at the front of the power chamber, and an air-assisted spraying device is located at the rear. An engine is mounted on the power mounting frame, and the engine has a front power shaft and a rear power shaft. A traveling mounting frame, fixedly positioned relative to the power mounting frame, is located at the bottom of the medicine tank. A traveling drive shaft is rotatably mounted on the side of the power mounting frame and is connected to the front power shaft. A laterally arranged traveling transmission assembly is mounted on the traveling mounting frame. The output end of the traveling transmission assembly is used to connect to the front axle and / or the rear axle, and a universal joint is installed between the input end of the traveling transmission assembly and the traveling drive shaft. This utility model utilizes a single engine power source but can achieve multiple power supplies using the front and rear power shafts. Furthermore, in the walking drive, the power connection is achieved through the walking drive shaft on the side and the walking transmission assembly arranged laterally. The output end of the walking transmission assembly can be easily adapted to the position of the input shaft of the front axle and / or the rear axle for direct power connection, thereby achieving the mechanical transmission purpose of walking drive and realizing efficient transmission. Attached Figure Description

[0013] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein:

[0014] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model;

[0015] Figure 2 yes Figure 1 Enlarged structural diagram at point I;

[0016] Figure 3 This is a three-dimensional structural schematic diagram from another perspective of an embodiment of the present utility model;

[0017] Figure 4 yes Figure 3 Enlarged structural diagram at point II;

[0018] Figure 5 This is a cross-sectional view of the rear drive shaft of the engine in an embodiment of this utility model;

[0019] Figure 6 This is a schematic diagram of the structural principle of the embodiment of this utility model and its arrangement with a sprayer.

[0020] In the diagram: 1-Power mounting frame; 11-Engine; 12-Front power shaft; 13-Rear power shaft; 2-Travel mounting frame; 21-Travel drive shaft; 22-Travel drive drive wheel; 23-Travel drive driven wheel; 24-Travel drive chain belt; 25-Tensioning swing arm; 26-Tensioning pressure roller; 27-Bearing mechanism; 28-Universal coupling mechanism; 29-Travel transmission assembly; 3-Spray mounting frame; 31-Spray pump; 32-Spray drive drive wheel; 33-Spray drive driven wheel; 34-Spray drive chain belt; 35-Agitator drive shaft; 36-Agitator main shaft; 37-Agitator action structure; 4-Fan drive mechanism; 41-Clutch mechanism; 91-Cockpit; 92-Medication tank; 93-Power compartment; 94-Air-assisted spray device; 95-Front axle; 96-Rear axle. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0022] like Figures 1 to 6As shown, the sprayer's power system includes a power mounting bracket 1 located in the power chamber 93 of the sprayer. A medicine tank 92 is located at the front of the power chamber 93, and an air-assisted spraying device 94 is located at the rear. The spatial arrangement of the medicine tank 92, the power chamber 93, and the air-assisted spraying device 94 is conventional knowledge in the art and will not be described in detail here, nor is it specifically illustrated in the accompanying drawings. In this embodiment, the terms "front," "rear," "left," and "right" are defined to align with the conventional understanding of front, rear, left, and right when the sprayer is in motion, for the purpose of more clearly explaining the structural principle, and are not intended to limit the scope of protection.

[0023] An engine 11 is mounted on the power mounting frame 1, and the engine 11 is provided with a front power shaft 12 and a rear power shaft 13. Conventionally, the power mounting frame 1 can be fixedly mounted on the chassis of the sprayer, serving as a mounting carrier for components such as the engine 11. The specific structure can be flexibly configured, which is a conventional technical means and will not be described in detail here. The mounting frames involved in this embodiment are similar.

[0024] like Figure 1 and Figure 2 As shown, the bottom of the medicine box 92 is provided with a walking mounting frame 2 that is fixedly arranged relative to the power mounting frame 1; a walking drive shaft 21 is rotatably mounted on the side of the power mounting frame 1, and the walking drive shaft 21 is connected to the front power shaft 12; a laterally arranged walking transmission assembly 29 is mounted on the walking mounting frame 2, the output end of the walking transmission assembly 29 is used to connect the front axle 95 and / or the rear axle 96, and a universal joint mechanism 28 is installed between the input end of the walking transmission assembly 29 and the walking drive shaft 21.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, the travel transmission assembly 29 is arranged laterally, more specifically, laterally from left to right. This allows the output end of the travel transmission assembly 29 to be approximately located in the middle of the chassis's left-right direction, facilitating power connection with the front axle 95 and / or the rear axle 96 and improving transmission efficiency. The input end of the travel transmission assembly 29 is located to its side, on the same side as the travel drive shaft 21, thus facilitating power connection via the universal joint mechanism 28, which also improves transmission efficiency. From the above arrangement principle, the lateral arrangement of the travel transmission assembly 29 is not a lateral arrangement of its own shape, but rather a left-right misalignment between its input and output ends, which falls under the aforementioned lateral arrangement. Therefore, this embodiment utilizes the positional difference between the input and output ends of the travel transmission assembly 29, employing its lateral arrangement, to achieve the mechanical transmission purpose of travel drive while adding the travel drive shaft 21, thus realizing efficient transmission.

[0026] The travel transmission assembly 29 can be a multi-speed transmission, a continuously variable transmission, or a combination of both; no limitation is made here. The universal joint mechanism 28 can be implemented using a universal coupling commonly used in mechanical transmissions.

[0027] like Figure 2 As shown in the figure, in this embodiment, a driving drive wheel 22 is installed on the front drive shaft 12, and a driven drive wheel 23 is installed on the driving drive shaft 21. A driving drive chain 24 is installed on both the driving drive wheel 22 and the driven drive wheel 23, thereby forming a chain drive between the driving drive shaft 21 and the front drive shaft 12. The transmission structure is simple and reliable, and it is convenient to flexibly set the distance between the driving drive shaft 21 and the front drive shaft 12.

[0028] Preferably, a tensioning swing arm 25 is oscillatingly mounted on the power mounting frame 1, and a tensioning pressure roller 26 is mounted on the free end of the tensioning swing arm 25. A tensioning force applicator is mounted on the power mounting frame 1 to drive the tensioning pressure roller 26 against the travel transmission chain belt 24. The tensioning force applicator causes the tensioning pressure roller 26 to press against the travel transmission chain belt 24, keeping the travel transmission chain belt 24 taut and further promoting efficient transmission of travel power. The rolling property of the tensioning pressure roller 26 reduces resistance to the travel transmission chain belt 24, facilitating efficient transmission. The tensioning force applicator can be implemented using a torsion spring mounted at the swing axis of the tensioning swing arm 25, a tension spring mounted between the tensioning swing arm 25 and the power mounting frame 1, or an elastic rubber block mounted at the swing axis of the tensioning swing arm 25, etc., and is not limited thereto.

[0029] In this embodiment, two bearing mechanisms 27 are fixedly installed on the power mounting frame 1, and the travel drive shaft 21 is mounted on both bearing mechanisms 27. The stability of the travel drive shaft 21 is achieved through a two-point rotational connection. Preferably, both bearing mechanisms 27 are located behind the travel drive driven wheel 23 to provide more space for the power connection between the travel drive shaft 21 and the input end of the travel transmission assembly 29.

[0030] In addition, such as Figure 1 , Figure 3 and Figure 4As shown, in this embodiment, a spray mounting bracket 3 is provided on the power mounting bracket 1 on the opposite side of the travel drive shaft 21. A spray pump 31 is fixedly mounted on the spray mounting bracket 3, and the input shaft of the spray pump 31 is connected to the front power shaft 12. Thus, the front power shaft 12 simultaneously provides driving power to the spray pump 31 to convert the spray liquid in the medicine tank 92 into a high-pressure fluid, thereby achieving the purpose of forming a spray at the spray nozzle.

[0031] In this embodiment, a spray drive drive wheel 32 is installed on the front power shaft 12, and a spray drive driven wheel 33 is installed on the input shaft of the spray pump 31. A spray drive chain belt 34 is installed on both the spray drive drive wheel 32 and the spray drive driven wheel 33. That is, the input shaft of the spray pump 31 and the front power shaft 12 are also connected by a chain drive. The structure is simple and it is easy to flexibly set the distance between the input shaft of the spray pump 31 and the front power shaft 12.

[0032] The spray pump 31 can be selected as needed, and the shaft of the component used to increase the liquid pressure is the input shaft of the spray pump 31. For example, if the spray pump 31 is a mud pump, the crank shaft of the crank-slider mechanism in the mud pump is the input shaft of the spray pump 31; or if the spray pump 31 is a gear pump, the gear shaft in the gear pump is the input shaft of the spray pump 31.

[0033] In this embodiment, a stirring drive shaft 35 is rotatably mounted on the spray mounting bracket 3, and the stirring drive shaft 35 is drive-connected to the input shaft of the spray pump 31. A stirring main shaft 36 is rotatably mounted on the medicine tank 92, and the stirring main shaft 36 is equipped with a stirring structure 37. One end of the stirring main shaft 36 extending out of the medicine tank 92 is drive-connected to the stirring drive shaft 35. Thus, power is transmitted to the stirring main shaft 36 via the input shaft of the spray pump 31, maintaining the stirring effect of the spray liquid in the medicine tank 92 in real time, which helps to promote the uniformity of the spray components. The stirring structure 37 can be implemented using stirring blades or stirring rods, etc. The drive connection between the stirring drive shaft 35 and the spray pump 31 can be implemented using chain drive or gear drive, etc. The drive connection between the stirring drive shaft 35 and the stirring main shaft 36 can be a direct spline shaft connection or a universal coupling connection; no limitation is made here.

[0034] like Figure 1 , Figure 3 and Figure 5As shown, in this embodiment, a fan transmission mechanism 4 is fixedly installed on the engine 11 or the power mounting bracket 1 at the rear power shaft 13. A clutch mechanism 41 is provided between the input end of the fan transmission mechanism 4 and the rear power shaft 13, and the output end of the fan transmission mechanism 4 is used to drive the fan. Through this arrangement, the rear power shaft 13 simultaneously realizes the power drive of the fan. Since the air-blowing spray device 94 may not remain in working state during the operation of the engine 11, this embodiment uses the clutch mechanism 41 to realize the disconnection and connection of the fan power. In this embodiment, the rear power shaft 13 of the engine 11 is dedicated to the fan power and basically forms a direct power connection, which can form a high-power power supply, which is conducive to the rapid start-up of the fan and the maintenance of a stable air supply.

[0035] The clutch mechanism 41 can be implemented using a dry clutch or similar technology, which is well-known and will not be described further here. Based on the configuration of the clutch mechanism 41, the rear power shaft 13 of the engine 11 is preferably its flywheel portion. The fan transmission mechanism 4 can be configured according to conventional gearboxes and similar technologies, and will not be described further here.

[0036] This embodiment utilizes only one power source, the engine 11. The rear power shaft 13 directly supplies power to the fan, and the clutch mechanism 41 enables the connection and disconnection of power, allowing for direct high-power output to the fan, facilitating rapid start-up and maintaining a stable airflow. The front power shaft 12 transmits power to the two side travel drive shafts 21 and the spray pump 31, making full use of the space in the power chambers 93 on both sides of the engine 11 for component arrangement, thus improving structural compactness. Furthermore, the travel drive transmission utilizes the lateral arrangement of the travel transmission assembly 29 to adapt to the positions of the input shafts of the front axle 95 and / or rear axle 96, as well as the location of the travel drive shafts 21, achieving power connection. A low-power stirring drive shaft 35 is led out from the spray pump 31 to drive the stirring structure for stirring. Therefore, this embodiment achieves multiple power supplies—fan power, travel power, spray power, and stirring power—using only one power source, the engine 11, resulting in a compact overall structure and high transmission efficiency.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A power system for a sprayer, comprising a power mounting frame disposed in the power compartment of the sprayer, wherein a medicine tank is provided at the front side and an air-assisted spraying device is provided at the rear side of the power compartment; an engine is mounted on the power mounting frame, and the engine is provided with a front power shaft and a rear power shaft, characterized in that: The bottom of the medicine box is provided with a walking mounting frame that is fixedly arranged relative to the power mounting frame; a walking drive shaft is rotatably mounted on the side of the power mounting frame, and the walking drive shaft is connected to the front power shaft; a laterally arranged walking transmission assembly is mounted on the walking mounting frame, the output end of the walking transmission assembly is used to connect the front axle and / or the rear axle, and a universal joint mechanism is installed between the input end of the walking transmission assembly and the walking drive shaft.

2. The sprayer power system as described in claim 1, characterized in that: The front drive shaft is equipped with a drive wheel for travel transmission, and the drive shaft is equipped with a driven wheel for travel transmission. The drive wheel and the driven wheel for travel transmission are both equipped with a travel transmission chain belt.

3. The sprayer power system as described in claim 2, characterized in that: A tensioning swing arm is oscillatingly mounted on the power mounting frame, a tensioning pressure roller is mounted on the free end of the tensioning swing arm, and a tensioning force applicator is mounted on the power mounting frame to drive the tensioning pressure roller to press against the walking transmission chain belt.

4. The sprayer power system as described in claim 1, characterized in that: Two bearing mechanisms are fixedly installed on the power mounting frame, and the travel drive shaft is mounted on both bearing mechanisms.

5. The sprayer power system as described in claim 1, characterized in that: A spray mounting bracket is provided on the power mounting frame on the opposite side of the travel drive shaft. A spray pump is fixedly mounted on the spray mounting bracket, and the input shaft of the spray pump is connected to the front power shaft.

6. The sprayer power system as described in claim 5, characterized in that: A spray drive drive wheel is mounted on the front power shaft, and a spray drive driven wheel is mounted on the input shaft of the spray pump. A spray drive chain belt is mounted on both the spray drive drive wheel and the spray drive driven wheel.

7. The sprayer power system as described in claim 5, characterized in that: A stirring drive shaft is rotatably mounted on the spray mounting bracket, and the stirring drive shaft is drivenly connected to the input shaft of the spray pump; a stirring main shaft is rotatably mounted on the medicine tank, and the stirring main shaft is equipped with a stirring structure, and one end of the stirring main shaft extending out of the medicine tank is drivenly connected to the stirring drive shaft.

8. The sprayer power system as described in claim 1, characterized in that: A fan transmission mechanism is fixedly installed on the engine or the power mounting frame at the rear power shaft. A clutch mechanism is provided between the input end of the fan transmission mechanism and the rear power shaft. The output end of the fan transmission mechanism is used to drive the fan.

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