Self-propelled air-blast sprayer with multi-gear transmission

Abstract

The utility model discloses a self -propelled air -suction pesticide sprayer multistage gearbox, be provided with walking drive gear and fan drive gear through setting up on input shaft, fan drive gear is connected with transition axle I, be provided with a plurality of transition axle I driven gear on transition axle I, one of them is engaged with fan drive gear, and the driven gear of another transition axle I is engaged with the driven gear of medicine pump end and the driven gear of fan end, realizes the multistage drive of medicine pump and fan, walking drive gear is connected with transition axle II, be provided with a plurality of transition axle II driven gear on transition axle II, at least one is engaged with walking drive gear among them, and a transition axle II driven gear is engaged with reverse driven gear, at least two transition axle II driven gears are engaged with a plurality of walking end output gear on walking drive shaft respectively. This gearbox compact structure has replaced traditional decentralized transmission component, has promoted the operation reliability and the operating convenience of pesticide sprayer.

Description

Technical Field

[0001] This utility model relates to the technical field of sprayer drive equipment, and in particular to a multi-speed gearbox for a self-propelled pneumatic sprayer. Background Technology

[0002] Self-propelled pneumatic sprayers are key equipment in modern agriculture for the prevention and control of crop diseases and pests. Their operating efficiency and control effect are closely related to the transmission system of the equipment.

[0003] Most existing self-propelled pneumatic sprayers only have a gearbox function for adjusting the walking gear. The speed control of the pneumatic fan and the infusion speed control of the medicine pump need to be achieved by setting up an additional independent gearbox.

[0004] This decentralized transmission design has many drawbacks: First, the large number of parts and the complex structure of the transmission system increase the manufacturing cost and failure rate of the equipment; second, the multiple speed-changing mechanisms are scattered, occupying a large space and hindering the compact design of the overall structure of the sprayer; third, the operation is cumbersome, requiring operators to control multiple mechanisms separately, making it difficult to quickly and accurately match the walking speed, air supply intensity, and infusion volume, thus affecting work efficiency.

[0005] Therefore, the technical problem that needs to be solved by those skilled in the art is: a multi-gear gearbox for a self-propelled pneumatic sprayer, in order to solve the problems of dispersed transmission systems, cumbersome operation, and poor adaptability of existing sprayer transmission systems. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the present invention focuses on developing a multi-gear gearbox for a self-propelled pneumatic sprayer. The purpose is to integrate the travel gear and the working component gear into a single design, simplifying the transmission system layout of the sprayer, reducing the number of parts, improving ease of operation, adapting to different crop heights, densities, and pest and disease control needs, and making it widely applicable to various self-propelled pneumatic sprayers.

[0007] The technical solution adopted is as follows: A multi-gear gearbox for a self-propelled pneumatic sprayer includes an input shaft, on which a travel drive gear and a fan drive gear are mounted. The fan drive gear is connected to the transition shaft I. The transition shaft I is provided with several transition shaft I driven gears, one of which meshes with the fan drive gear. The other transition shaft I driven gears mesh with the driven gears at the drug pump end and the driven gears at the fan end to drive the drug pump and the fan. The travel drive gear is connected to the transition shaft II. The transition shaft II is provided with a plurality of transition shaft II driven gears, at least one of which meshes with the travel drive gear, and one transition shaft II driven gear meshes with the reverse gear. At least two transition shaft II driven gears respectively mesh with multiple walking end output gears on the walking drive shaft, and each of the multiple walking end output gears is equipped with a walking gear shift fork.

[0008] The driven gear at the pump end is a double driven gear at the pump end, which is fixed on the pump drive shaft. A shift fork I is provided in conjunction with the double driven gear at the pump end, and the shift fork I is used to realize the dual-gear control of the pump end.

[0009] The fan-end driven gear is a fan-end driven double gear, which is fixed on the fan output shaft. A shift fork II is provided in conjunction with the fan-end driven double gear to realize the dual-speed control of the fan.

[0010] The aforementioned travel drive gear is a double gear, and a fast / slow gear shift fork is provided in conjunction with the travel drive double gear. Two driven gears of the transition shaft II are provided on the transition shaft II, which mesh with the travel drive double gear to realize fast / slow gear output.

[0011] The beneficial effects of this utility model are: This utility model sets a walking drive gear and a fan drive gear on the input shaft; the fan drive gear is connected to the transition shaft I, and the transition shaft I is provided with a number of transition shaft I driven gears, one of which meshes with the fan drive gear, and the other transition shaft I driven gears mesh with the driven gears at the end of the medicine pump and the end of the fan to realize multi-level drive of the medicine pump and the fan. The drive gear is connected to transition shaft II, which has several driven gears. At least one driven gear meshes with the drive gear, and one driven gear meshes with the reverse driven gear. At least two driven gears mesh with multiple output gears on the drive shaft. Each output gear is equipped with a drive gear shift fork. Through this structure, the gearbox integrates drive gear shifting, fan power output, and pesticide pump power output modules within a single housing. Each module has an independent transmission path, and gear shifting is centrally controlled via the shift fork mechanism. This compact gearbox replaces traditional distributed transmission components, improving the reliability and ease of operation of the sprayer, and is suitable for pneumatic spraying operations in various types of farmland. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the top walking end of this utility model; Figure 2 This is a three-dimensional structural diagram of the top fan end of this utility model; Figure 3 This is a schematic diagram of the bottom three-dimensional structure of this utility model. Figure I ; Figure 4 This is a schematic diagram of the bottom three-dimensional structure of this utility model. Figure II ; Reference numerals: 1. Input shaft; 2. Travel drive double gear; 3. Driven gear I of transition shaft II; 4. Driven gear II of transition shaft II; 5. Driven gear III of transition shaft II; 6. Driven gear IV of transition shaft II; 7. Driven gear V of transition shaft II; 8. Travel drive shaft; 9. Travel end output gear; 10. Travel end output double gear; 11. Reverse gear shaft; 12. Reverse gear; 13. Transition shaft I; 14. Fan drive gear; 15. Driven gear I of transition shaft I; 6. Transition Shaft I driven gear II; 17. Transition Shaft I driven gear III; 18. Pump end output shaft; 19. Pump end driven double gear; 20. Shift fork I; 21. Fan output shaft; 22. Fan end driven double gear; 23. Shift fork II; 24. Fan lever; 25. Travel gear lever I; 26. Travel gear lever II; 27. Fast / slow gear lever; 28. Fast / slow gear shift fork; 29. ​​Gear shift fork; 30. Transition Shaft II; 31. Pump lever. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0014] As shown in the attached figure, a multi-speed gearbox for a self-propelled pneumatic sprayer includes a housing. The key design feature is that an input shaft 1 is installed inside the housing, and the input shaft 1 extends to the outside of the housing and connects to the engine.

[0015] The input shaft 1 is equipped with a walking drive gear and a fan drive gear 14. When setting the function of this utility model, according to the actual needs of farmland, a fast and slow gear control can be set. The walking drive gear is set as a walking drive double gear 2. The walking drive double gear 2 is equipped with a fast and slow gear fork 28 and a fast and slow gear lever 27. The fast and slow control in the walking state can be realized through external operation.

[0016] In this invention, the output shaft 18 of the medicine pump and the output shaft 21 of the fan are located on the front side of the input shaft 1, and the walking drive shaft 8 is located on the rear side of the input shaft 1.

[0017] The fan drive gear 14 is connected to the transition shaft I 13. The transition shaft I 13 is provided with a transition shaft I driven gear I 15, a transition shaft I driven gear II 16, and a transition shaft I driven gear III 17. The transition shaft I driven gear I 15 meshes with the fan drive gear 14 to transmit power to the transition shaft I 13.

[0018] The driven gears II16 and III17 on the transition shaft I 13 mesh with the driven double gear 22 on the fan output shaft 21. A shift fork II23 and a fan lever 24 are provided on the fan output shaft 21 in conjunction with the driven double gear, enabling dual-speed control of the fan. Alternatively, those skilled in the art can connect an external fan directly to the end of the input shaft 1 to achieve a 1:1 speed output for fan control.

[0019] The driven gear III17 on the transition shaft I13 also meshes with the driven gear at the pump end. The driven gear at the pump end is a double driven gear 19 at the pump end, which is fixed on the pump drive shaft 18. A shift fork I20 and a pump lever 31 are provided in conjunction with the double driven gear 19 at the pump end. The shift fork I20 is used to achieve dual-gear control at the pump end.

[0020] With the above mechanism setup, the fan drive gear 14 on the input shaft 1 meshes with the driven gear I 15 on the transition shaft I. The rotation of the input shaft 1 drives the transition shaft I 13 to rotate. The driven gears II 16 and III 17 on the transition shaft I 13 have different numbers of teeth. Through the shift fork II 23 and the fan lever 24, the driven double gear 22 on the fan end is driven to mesh with the driven gears II 16 and III 17 on the transition shaft I respectively to achieve two speed outputs for the fan.

[0021] The driven gear III17 on the transition shaft I13 also meshes with the driven gear at the pump end. The driven gear at the pump end is a double driven gear 19. The double driven gear 19 at the pump end is controlled by the shift fork I20 and the pump shift lever 31 to mesh with the driven gear II16 and the driven gear III17 on the transition shaft I respectively to achieve two speed outputs of the pump.

[0022] The aforementioned double-gear drive 2 is connected to the transition shaft II 30. The transition shaft II 30 is equipped with a driven gear I 3, a driven gear II 4, a driven gear III 5, a driven gear IV 6, and a driven gear V 7. The driven gears I 3 and II 4 have different numbers of teeth, which mesh with the large and small gears on the double-gear drive 2, respectively. Driven by the fast / slow gear shift fork 28 and the fast / slow gear shift lever 27, the fast / slow gears of the transition shaft II 30 are controlled. The driven gears III 5 and IV 6 on the transition shaft II 30 mesh with the double-gear drive output gear 10 on the travel drive shaft 8 to achieve two-speed output. The travel end output gear 9 on the travel drive shaft 8 also meshes with the driven gear V 7 to achieve single-speed output. With the dual-speed output of the transition shaft II 30, a total of 6 travel gears can be achieved. The aforementioned gear shifting is achieved by using the gear shift lever I 25 and the gear shift lever II 26 to drive the gear shift fork 19, thereby changing the gear on the travel drive shaft 8.

[0023] The transition shaft II 30 is also equipped with a driven gear that meshes with the reverse gear 12 on the reverse gear shaft 11 to achieve reverse gear output. Since the transition shaft II 30 has two speeds under the drive of the travel drive double gear 2, it also has the effect of two reverse gear outputs after meshing with the reverse gear 12.

[0024] In summary, this utility model features a novel structural design, integrating a travel gearbox, fan power output, and pesticide pump power output module within a single housing. During travel, a high-low speed switching mechanism engages with a 3-forward / 1-reverse gear set 12, enabling multi-condition travel power output with 6 forward gears and 2 reverse gears. When the fan and pesticide pump are driven, each is equipped with 2 independent gears, allowing for individual speed adjustment to suit different application requirements. The transmission paths of the aforementioned gear sets are independent, with gear switching centrally controlled via a shift fork mechanism. This compact gearbox replaces traditional distributed transmission components, improving the reliability and ease of operation of the sprayer, and is suitable for pneumatic spraying operations in various types of farmland.

Claims

1. A multi-speed gearbox for a self-propelled pneumatic sprayer, characterized in that: Includes an input shaft, on which a travel drive gear and a fan drive gear are provided; The fan drive gear is connected to the transition shaft I. The transition shaft I is provided with several transition shaft I driven gears, one of which meshes with the fan drive gear. The other transition shaft I driven gears mesh with the driven gears at the drug pump end and the driven gears at the fan end to drive the drug pump and the fan. The travel drive gear is connected to the transition shaft II. The transition shaft II is provided with a plurality of transition shaft II driven gears, at least one of which meshes with the travel drive gear, and one transition shaft II driven gear meshes with the reverse gear. At least two transition shaft II driven gears respectively mesh with multiple walking end output gears on the walking drive shaft, and each of the multiple walking end output gears is equipped with a walking gear shift fork.

2. The multi-speed gearbox of the self-propelled pneumatic sprayer according to claim 1, characterized in that: The driven gear at the pump end is a double driven gear at the pump end, which is fixed on the pump drive shaft. A shift fork I is provided in conjunction with the double driven gear at the pump end, and the shift fork I is used to realize the dual-gear control of the pump end.

3. The multi-speed gearbox of the self-propelled pneumatic sprayer according to claim 1, characterized in that: The fan-end driven gear is a fan-end driven double gear, which is fixed on the fan output shaft. A shift fork II is provided in conjunction with the fan-end driven double gear to realize the dual-speed control of the fan.

4. The multi-speed gearbox of the self-propelled pneumatic sprayer according to claim 1, characterized in that: The aforementioned travel drive gear is a double gear, and a fast / slow gear shift fork is provided in conjunction with the travel drive double gear. Two driven gears of the transition shaft II are provided on the transition shaft II, which mesh with the travel drive double gear to realize fast / slow gear output.

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