Power turning system for field management machine

Abstract

The utility model relates to a power turning system for a field management machine, which comprises an input shaft, an output shaft and a power transmission shaft, the input shaft is used for receiving power, the input shaft is provided with a power input tooth assembly in a sliding fit mode along the axial direction, and the power transmission shaft is provided with a power transmission gear. The output shaft is provided with power output teeth and a power turning tooth assembly, the power turning tooth assembly can rotate relative to the output shaft and is meshed with the power transmission gear, and the power input tooth assembly can be controlled to be meshed with the power transmission gear to transmit power to the power transmission shaft. The power output teeth are used for receiving power of the power transmission shaft and transmitting the power to the output shaft, and the output shaft is used for power output. The power output gear and the power turning gear assembly capable of rotating relative to the output shaft are arranged on the output shaft, the power input gear assembly is controlled to be meshed with the power transmission gear or the power turning gear assembly to achieve forward rotation or reverse rotation of the output shaft, the structure is compact, and the transmission box is simple in structure.

Description

Technical Field

[0001] This utility model relates to the technical field of transmission systems, and in particular to a power steering system for a garden tiller. Background Technology

[0002] The power source transmits power through the power output shaft via the transmission box. Since the power source generally does not have forward and reverse rotation functions, the transmission box is required to reverse the rotation direction of the power output shaft to meet diverse needs.

[0003] However, the existing power structure of the transmission box requires additional gears and shafts, as well as corresponding shifting mechanisms, to achieve forward and reverse rotation. A separate reverse shaft is also required for reversing, which increases the complexity of the transmission box, resulting in an excessively large size, which is not conducive to operation and subsequent maintenance, and also increases the manufacturing cost.

[0004] Therefore, there is an urgent need for a power reversing system for garden tillers that can achieve forward and reverse rotation of the power output shaft using fewer drive shafts, with a compact structure, small required size, and simple transmission box structure. Utility Model Content

[0005] In view of this, the present invention provides a power reversing system for a garden tiller, which can realize the forward and reverse rotation of the power output shaft, has a compact structure, requires a small size, and has a simple transmission box structure.

[0006] The present invention provides a power steering system for a garden tiller, which adopts the following technical solution:

[0007] A power reversing system for a garden tiller includes an input shaft, an output shaft, and a power transmission shaft. The input shaft receives power and is axially slidably fitted with a power input gear assembly. The power transmission shaft is equipped with a power transmission gear. The output shaft is equipped with power output teeth and a power reversing gear assembly. The power reversing gear assembly is rotatable relative to the output shaft and meshes with the power transmission gear. The power input gear assembly can be manipulated to mesh with the power transmission gear to transmit power to the power transmission shaft. The power output teeth receive power from the power transmission shaft and transmit it to the output shaft. The output shaft is used for power output.

[0008] Optionally, the power input gear assembly includes a mating tooth that can rotate relative to the input shaft, and the power transmission shaft is provided with a plurality of power transmission gears of different diameters along the axial direction, the mating tooth meshing with one of the power transmission gears.

[0009] Optionally, the power input gear assembly further includes a power input sliding tooth that can slide along the input shaft axial direction, the power input sliding tooth meshing with the power transmission gear.

[0010] Optionally, the engaging tooth has an engaging portion one, and the power input sliding tooth has an engaging portion two. The power input sliding tooth can be manipulated to engage the engaging portion one with the engaging portion two to transmit power to the power transmission shaft through a corresponding power transmission gear.

[0011] Optionally, the power reversing gear has a connecting tooth portion and a reversing tooth portion, the connecting tooth portion being capable of meshing with a power input sliding tooth, and the reversing tooth portion meshing with one of the power transmission gears.

[0012] Optionally, the power transmission gear includes a power transmission gear one and a power transmission gear two arranged axially. The power transmission gear one meshes with the engagement gear, and the power transmission gear two can mesh with the power input gear assembly and the power reversing gear assembly.

[0013] Optionally, the power transmission shaft has a power transmission gear that meshes with a power output gear to transmit power to the output shaft.

[0014] Optionally, the power output gear is configured on the output shaft via a spline connection.

[0015] Optionally, the power transmission gear is splined and disposed on the power transmission shaft.

[0016] In summary, this utility model has at least one of the following beneficial technical effects: by setting a power output tooth and a power reversing tooth assembly that can rotate relative to the output shaft on the output shaft, the forward or reverse rotation of the output shaft can be achieved by manipulating the power input tooth assembly to mesh with the power transmission gear or the power reversing tooth assembly. The structure is compact, the required volume is small, and the transmission box structure is simple. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 2 .

[0020] Explanation of reference numerals in the attached drawings: 1. Input shaft; 2. Output shaft; 3. Power transmission shaft; 4. Power input sliding gear; 5. Power transmission gear; 6. Power output gear; 7. Power reversing gear assembly; 71. Connecting gear; 72. Reversing gear; 8. Engaging gear; 9. Power transmission gear one; 10. Power transmission gear two. Detailed Implementation

[0021] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0022] The following is in conjunction with the appendix Figure 1-2 The present invention will be described in further detail below.

[0023] This utility model discloses a power steering system for a garden tiller.

[0024] Reference Figure 1 , Figure 2 A power reversing system for a garden tiller includes an input shaft 1, an output shaft 2, and a power transmission shaft 3. The input shaft 1 receives power and is equipped with a power input gear assembly that slides axially. The power transmission shaft 3 is equipped with a power transmission gear. The output shaft 2 is equipped with a power output gear 6 and a power reversing gear assembly 7. The power reversing gear assembly 7 is rotatable relative to the output shaft 2 and meshes with the power transmission gear. The power input gear assembly can be manipulated to mesh with the power transmission gear to transmit power to the power transmission shaft 3. The power output gear 6 receives power from the power transmission shaft 3 and transmits it to the output shaft 2. The output shaft 2 is used for power output. By providing the power output gear 6 and the rotatable power reversing gear assembly 7 on the output shaft 2, the forward or reverse rotation of the output shaft 2 can be achieved by manipulating the power input gear assembly to mesh with the power transmission gear or the power reversing gear assembly 7. The system has a compact structure, requires a small volume, and has a simple transmission box structure.

[0025] In this embodiment, the input shaft 1 receives power from the engine.

[0026] In this embodiment, the power steering system used for the garden tiller is a gear transmission system.

[0027] In this embodiment, the power input gear assembly includes a meshing tooth 8 that can rotate relative to the input shaft 1. Multiple power transmission gears with different diameters are arranged axially on the power transmission shaft 3, and the meshing tooth 8 meshes with one of the power transmission gears.

[0028] The input shaft 1 is axially slidingly fitted with a power input gear assembly; the power transmission shaft 3 has a power transmission gear; the output shaft 2 is provided with a power output gear 6 and a power reversing gear assembly 7 that can rotate relative to the output shaft 2. The power reversing gear assembly 7 is engaged with the power transmission shaft 3. The power input gear assembly can be manipulated to mesh with the power transmission gear or the power reversing gear assembly 7 to transmit power to the power transmission shaft 3. The power output gear 6 is used to transmit power from the power transmission shaft 3 to the output shaft 2. The power reversing gear has a connecting tooth portion 71 and a reversing tooth portion 72. The connecting tooth portion 71 can mesh with the power input sliding tooth 4, and the reversing tooth portion 72 meshes with one of the power transmission gears.

[0029] In this embodiment, a power reversing system for a garden tiller is installed on the garden tiller. Output shaft 2 is connected to a travel input shaft and a tool input shaft. Power is transmitted to the traveling unit via the travel input shaft and to the working unit via the tool input shaft.

[0030] In this embodiment, multiple power input gear assemblies can be arranged along the axial direction of the input shaft 1. Multiple power input gear assemblies can be combined with different power transmission gears to achieve more gear shifting. In this embodiment, two power input gear assemblies are provided. The power input gear assembly includes a engagement tooth 8 disposed on the input shaft 1 and a power input sliding tooth 4 that can slide along the axial direction of the input shaft 1. The power input sliding tooth 4 meshes with the power transmission gear, and the engagement tooth 8 can rotate relative to the input shaft 1. Specifically, the engagement tooth 8 is loosely fitted or disposed on the input shaft 1 through a bearing.

[0031] A power transmission gear is provided on the power transmission shaft 3. Multiple power transmission gears can be provided. In this embodiment, the power transmission gear includes a first power transmission gear 9 coaxially disposed on the power transmission shaft 3 and meshing with the engagement gear 8, and a second power transmission gear 10 coaxially disposed on the power transmission shaft 3. The first power transmission gear 9 and the second power transmission gear 10 have different diameters. The first power transmission gear 9 meshes with the engagement gear 8, and the second power transmission gear 10 can mesh with the power input gear assembly and the power reversing gear assembly 7. The first power transmission gear 9 and the second power transmission gear 10 are splined together on the power transmission shaft 3. The power transmission shaft 3 is coaxially provided with a power transmission gear 5 that meshes with the power output gear 6.

[0032] In this embodiment, the engaging tooth 8 has an engaging portion one, and the power input sliding tooth 4 has an engaging portion two. The power input sliding tooth 4 can be manipulated to move so that the engaging portion two engages with the engaging portion one, and the power is transmitted to the power transmission shaft 3 through the power transmission gear 9.

[0033] The power input sliding gear 4 can be manipulated to mesh with the power transmission gear 10 to transmit power to the power transmission shaft 3.

[0034] The power transmission gear 19 and the power transmission gear 20 are splined together on the power transmission shaft 3. The different diameters of the power transmission gear 19 and the power transmission gear 210 enable two-speed shifting.

[0035] In other embodiments, multiple power transmission gears may be provided, which can achieve multi-speed shifting by meshing with corresponding power input gear assemblies.

[0036] In this embodiment, the power reversing gear assembly 7 is mounted on the output shaft 2 via a sleeve or bearing. The power reversing gear assembly 7 has a connecting tooth 71 and a reversing tooth 72. The reversing tooth 72 meshes with the power transmission gear 10. The power input sliding tooth 4 can be manipulated to mesh with the connecting tooth 71 and transmit power to the power output tooth 6 through the power transmission gear 10.

[0037] When the power input sliding tooth 4 meshes with the engagement tooth 8, the power is transmitted to the power transmission shaft 3 because the engagement tooth 8 and the power transmission gear 9 are constantly meshed. The power transmission gear 5 is constantly meshed with the power output tooth 6, thereby transmitting the power to the output shaft 2, thus realizing the power output to the tool input shaft and the travel input shaft.

[0038] Similarly, when the power input sliding tooth 4 meshes with the power transmission tooth 10, it transmits power to the power transmission shaft 3, thus realizing power transmission.

[0039] When the power input sliding tooth 4 meshes with the connecting tooth 71 of the power reversing gear assembly 7, the power is transmitted to the power transmission shaft 3 through the reversing tooth 72 of the power reversing gear assembly 7 meshing with the power speed changing gear 10. Then, the power is transmitted to the output shaft 2 through the constant meshing of the power transmission gear 5 with the power output tooth 6, realizing the power reversal output to the tool input shaft and the travel input shaft, so that the tool input shaft and the travel input shaft reverse direction, realizing the reverse rotation of the working part and the tool part.

[0040] In this embodiment, the power input sliding tooth 4 is slid along the axial direction of the input shaft 1 by manipulating the shift fork, which is existing technology and will not be described in detail here.

[0041] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. The above descriptions are only preferred embodiments of this utility model. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A power steering system for a garden tiller, characterized in that: The device includes an input shaft (1), an output shaft (2), and a power transmission shaft (3). The input shaft (1) is used to receive power. The input shaft (1) is axially slidably fitted with a power input gear assembly. The power transmission shaft (3) is equipped with a power transmission gear. The output shaft (2) is equipped with a power output gear (6) and a power reversing gear assembly (7). The power reversing gear assembly (7) can rotate relative to the output shaft (2). The power reversing gear assembly (7) meshes with the power transmission gear. The power input gear assembly can be manipulated to mesh with the power transmission gear to transmit power to the power transmission shaft (3). The power output gear (6) is used to receive power from the power transmission shaft (3) and transmit power to the output shaft (2). The output shaft (2) is used for power output.

2. The power steering system for a garden tiller according to claim 1, characterized in that: The power input gear assembly includes a coupling tooth (8) that can rotate relative to the input shaft (1). Multiple power transmission gears with different diameters are arranged axially on the power transmission shaft (3). The coupling tooth (8) meshes with one of the power transmission gears.

3. The power steering system for a garden tiller according to claim 2, characterized in that: The power input gear assembly also includes a power input sliding tooth (4) that can slide along the input shaft (1) axially, and the power input sliding tooth (4) meshes with the power transmission gear.

4. The power steering system for a garden tiller according to claim 3, characterized in that: The engaging tooth (8) has an engaging portion one, and the power input sliding tooth (4) has an engaging portion two. The power input sliding tooth (4) can be manipulated to engage the engaging portion one with the engaging portion two and transmit power to the power transmission shaft (3) through the corresponding power transmission gear.

5. The power steering system for a garden tiller according to claim 3, characterized in that: The power reversing gear has a connecting tooth portion (71) and a reversing tooth portion (72), the connecting tooth portion (71) being able to mesh with the power input sliding tooth (4), and the reversing tooth portion (72) meshing with one of the power transmission gears.

6. The power steering system for a garden tiller according to claim 2, characterized in that: The power transmission gear includes a power transmission gear one (9) and a power transmission gear two (10) arranged along the axial direction. The power transmission gear one (9) meshes with the engagement gear (8), and the power transmission gear two (10) can mesh with the power input gear assembly and the power reversing gear assembly (7).

7. The power steering system for a garden tiller according to claim 1, characterized in that: The power transmission shaft (3) has a power transmission gear (5), which meshes with the power output gear (6) to transmit power to the output shaft (2).

8. The power steering system for a garden tiller according to claim 1, characterized in that: The power output tooth (6) is set on the output shaft (2) by a spline connection.

9. The power steering system for a garden tiller according to claim 1, characterized in that: The power transmission gear spline fits on the power transmission shaft (3).

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