Final transmission assembly for increasing ground clearance and high-ground-clearance tractor

Abstract

The utility model provides a final drive assembly for increasing ground clearance and a high ground clearance tractor, the final drive assembly for increasing ground clearance comprises a gear box, two opposite sides of the gear box are provided with an output disc and a half shaft shell, the lower part of the gear box is provided with an output shaft, and the output shaft is connected with the output disc; one end of the half shaft shell is fixed to the upper portion of the gearbox, an input half shaft and a transmission shaft are arranged in the half shaft shell, the input half shaft is in transmission connection with the opposite end of the transmission shaft, the other end of the transmission shaft extends into the gearbox and is in transmission connection with an output shaft of the gearbox, and the other end of the input half shaft extends out of the half shaft shell. According to the utility model, the power of the input half shaft is transmitted to the output disc through the gear box, so that the transmission of the walking power of the tractor is realized; the output disc is lower than the input half shaft, so that the ground clearance of the tractor is increased, the tractor can cross higher crops to perform crop management operation, and the chassis of the tractor is prevented from damaging the crops.

Description

Technical Field

[0001] The utility model relates to the technical field of tractor final transmission assemblies, in particular to a final transmission assembly with increased ground clearance and a high-ground-clearance tractor. Background Art

[0002] As an important agricultural machine, tractors are widely used in fields such as farmland cultivation, transportation, construction, and engineering. Tractors also have diverse and unique features depending on the operating conditions.

[0003] When using tractors to manage crops like cotton and peppers, these crops grow taller than conventional tractors can reach. These tractors are unable to perform tasks such as spraying, soiling, weeding, fertilizing, and tilling. Overdoing these tasks can damage the crops and cause losses in agricultural production. Therefore, these crop management tasks are currently performed manually, which is labor-intensive and inefficient. Utility Model Content

[0004] The technical problem to be solved by the utility model is: how to enable a tractor to cross over crops to perform crop management operations.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] The utility model provides a final drive assembly with increased ground clearance, comprising a gearbox, wherein an output disc and a half-shaft housing are provided on opposite sides of the gearbox, an output shaft is provided at the lower part of the gearbox, and the output shaft is connected to the output disc; one end of the half-shaft housing is fixed to the upper part of the gearbox, an input half-shaft and a transmission shaft are provided in the half-shaft housing, the input half-shaft is transmission-connected at one end opposite to the transmission shaft, the other end of the transmission shaft extends into the gearbox and transmission-connected to the output shaft of the gearbox, and the other end of the input half-shaft extends out of the half-shaft housing.

[0007] The beneficial effects of the utility model are:

[0008] By adopting the utility model, the power of the input half-shaft is transmitted to the output plate through the gear box. The output plate is used to install the tire, thereby realizing the transmission of the tractor's traveling power; the height of the output plate is lower than that of the input half-shaft, so that the installation height of the tire is sunken, thereby increasing the tractor ground clearance, enabling the tractor to stride over higher crops to perform crop management operations, avoiding damage to the crops by the tractor chassis, reducing production labor intensity, and improving production efficiency.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the half-shaft housing is in the shape of a long cylinder, and both ends of the transmission shaft are connected to the half-shaft housing through bearings.

[0011] The stability of the transmission shaft is improved, and the transmission reliability is good.

[0012] Furthermore, one end of the half-shaft housing is connected to the gear box via bolts.

[0013] Easy to disassemble and assemble, low maintenance cost.

[0014] Furthermore, a first flange is provided at one end of the half-shaft housing, and the first flange is connected to the gear box by bolts.

[0015] The connection strength is high, which improves the bearing capacity of the gear box to the half-shaft housing and has good stability.

[0016] Furthermore, a second flange is provided at the other end of the half-shaft housing.

[0017] The half-shaft housing can be fixed to the housing of the rear axle assembly through the second flange, which is convenient for disassembly and assembly, has high connection strength and good reliability.

[0018] Furthermore, a vehicle body connecting frame is provided on the upper side of the half-axle housing.

[0019] When the half-axle housing is fixed to the rear axle assembly of the tractor, the body connecting frame can provide an installation position for the rear half of the body, which is easy to install.

[0020] Furthermore, a planetary gear mechanism is provided between the input half shaft and the opposite end of the transmission shaft, the ring gear of the planetary gear mechanism is fixed on the half shaft housing, the input half shaft is connected to the sun gear of the planetary gear mechanism, and the transmission shaft is connected to the planetary carrier of the planetary gear mechanism.

[0021] Good transmission reliability and compact structure.

[0022] The utility model also provides a high-ground-clearance tractor, comprising a vehicle body, a rear axle assembly, and a front axle assembly, wherein front wheels are provided at both ends of the front axle assembly, a front axle bracket is provided on the upper middle side of the front axle assembly, the front part of the vehicle body is connected to the front axle bracket, and the rear part of the vehicle body is connected to the rear axle assembly; both ends of the rear axle assembly are provided with the above-mentioned final drive assembly for increasing ground clearance, the half-axle housing is fixed to the housing of the rear axle assembly, the input half-axle is transmission-connected to the output end of the rear axle assembly, and the output disc is provided with a rear wheel.

[0023] By installing the final drive assembly with increased ground clearance of the utility model at both ends of the rear axle assembly, the installation height of the rear wheels is lower than that of the rear wheels of conventional tractors, thereby increasing the ground clearance height at the rear of the tractor; at the same time, the front wheels also need to use larger tires, thereby increasing the ground clearance height at the front of the tractor.

[0024] Furthermore, the diameter of the front wheel is the same as the diameter of the rear wheel.

[0025] The front and rear wheels use the same type of large tires to increase the ground clearance of the tractor.

[0026] Furthermore, the width of the front wheels and the width of the rear wheels are both no greater than 230 mm.

[0027] Tires of this width are narrow tires with high ground clearance for intercropping, which can effectively avoid crushing seedlings and are suitable for managing crops such as cotton and peppers. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of the final drive assembly with increased ground clearance according to the present invention.

[0029] Figure 2 for Figure 1 Schematic diagram of the internal structure.

[0030] Figure 3 The figure is a schematic structural diagram of a high ground clearance tractor of the present utility model.

[0031] Figure 4 The figure is a schematic structural diagram of the high ground clearance tractor of the utility model without the vehicle body.

[0032] In the accompanying drawings, the technical features represented by the reference numerals are as follows:

[0033] 1-gearbox; 2-output plate; 3-axle housing; 4-input axle; 41-drive shaft; 5-first flange; 6-second flange; 31-planetary gear mechanism; 7-body connecting frame; 8-body main body; 9-rear axle assembly; 10-front axle assembly; 11-front wheel; 12-rear wheel; 13-front axle bracket; 14-power module. DETAILED DESCRIPTION

[0034] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0035] This utility model refers to Figure 1-4 .

[0036] like Figure 1-2 As shown:

[0037] The utility model provides a final drive assembly with increased ground clearance, comprising a gearbox 1, wherein an output disc 2 and a half-shaft housing 3 are provided on opposite sides of the gearbox 1, an output shaft is provided at the lower portion of the gearbox 1, and the output shaft is connected to the output disc 2; one end of the half-shaft housing 3 is fixed to the upper portion of the gearbox 1, an input half-shaft 4 and a transmission shaft 41 are provided in the half-shaft housing 3, the input half-shaft 4 is transmission-connected at one end opposite to the transmission shaft 41, the other end of the transmission shaft 41 extends into the gearbox 1 and transmission-connected to the output shaft of the gearbox 1, and the other end of the input half-shaft 4 extends out of the half-shaft housing 3.

[0038] principle:

[0039] During installation, the half-shaft housings 3 of the two final drive assemblies are respectively fixed to the two ends of the tractor's rear axle assembly 9, and the input half-shaft 4 is transmission-connected to the output end of the tractor's rear axle assembly 9; the rear axle assembly 9 is a conventional technical structure on the tractor. Specifically, the other end of the input half-shaft 4 can extend into the rear axle assembly 9 and be sleeved with an input gear, which meshes with the output gear in the rear axle assembly 9; then the tire is connected to the output disc 2.

[0040] In conventional tractors, the tire is connected directly through the axle assembly consisting of the axle housing 3 and the input axle 4. Specifically, the output disc 2 is located at one end of the input axle 4. Output disc 2 is used to connect to the tire, so the center of the tire is at the same height as the center of the input axle 4. In the present invention, the output disc 2 is lower than the input axle 4, facilitating the lowering of the tire. After the tire is mounted on the output disc 2, the center of the tire is lower than the center of the input axle 4, thereby increasing the ground clearance of the tractor chassis.

[0041] With the present invention, the power of the input half-shaft 4 is transmitted to the output disc 2 through the gear box 1. The output disc 2 is used to mount the tire, thereby realizing the transmission of the tractor's traveling power. The height of the output disc 2 is lower than that of the input half-shaft 4, so that the installation height of the tire is lowered, thereby increasing the tractor's ground clearance, enabling the tractor to straddle taller crops for crop management operations, avoiding damage to the crops by the tractor chassis, reducing production labor intensity, and improving production efficiency.

[0042] Furthermore, the half-shaft housing 3 is in the shape of a long cylinder, and both ends of the transmission shaft 41 are connected to the half-shaft housing 3 through bearings.

[0043] The stability of the transmission shaft 41 is improved, and the transmission reliability is good.

[0044] Furthermore, one end of the half-shaft housing 3 is connected to the gear box 1 via bolts.

[0045] Easy to disassemble and assemble, low maintenance cost.

[0046] Furthermore, a first flange 5 is provided at one end of the half-shaft housing 3 , and the first flange 5 is connected to the gear box 1 via bolts.

[0047] The connection strength is high, which improves the bearing capacity of the gear box 1 on the half-shaft housing 3 and has good stability.

[0048] Furthermore, a second flange 6 is provided at the other end of the half-shaft housing 3 .

[0049] The half-shaft housing 3 can be fixed to the housing of the rear axle assembly 9 through the second flange 6, which is convenient for disassembly and assembly, has high connection strength and good reliability.

[0050] Furthermore, a vehicle body connecting frame 7 is provided on the upper side of the half-axle housing 3 .

[0051] When the half-axle housing 3 is fixed to the rear axle assembly 9 of the tractor, the vehicle body connecting frame 7 can provide an installation position for the rear half of the vehicle body, which is convenient for installation.

[0052] Furthermore, a planetary gear mechanism 31 is provided between the opposite end of the input half shaft 4 and the transmission shaft 41. The ring gear of the planetary gear mechanism 31 is fixed on the half shaft housing 3. The input half shaft 4 is connected to the sun gear of the planetary gear mechanism 31, and the transmission shaft 41 is connected to the planetary carrier of the planetary gear mechanism 31.

[0053] Note: The planetary gear mechanism 31 is a product of existing technology. The planetary gears are arranged around the sun gear on the inner side of the ring gear. The planetary carrier is connected to the planetary gears. The rotation of the sun gear can drive the planetary carrier to rotate.

[0054] Good transmission reliability and compact structure.

[0055] like Figure 3-4 As shown:

[0056] The utility model also provides a high-ground-clearance tractor, comprising a vehicle body 8, a rear axle assembly 9, and a front axle assembly 10. Front wheels 11 are provided at both ends of the front axle assembly 10, a front axle bracket 13 is provided on the upper middle side of the front axle assembly 10, the front part of the vehicle body 8 is connected to the front axle bracket 13, and the rear part of the vehicle body 8 is connected to the rear axle assembly 9; both ends of the rear axle assembly 9 are provided with the above-mentioned final drive assembly for increasing ground clearance, the half-axle housing 3 is fixed to the housing of the rear axle assembly 9, the input half-axle 4 is transmission-connected to the output end of the rear axle assembly 9, and the output disc 2 is provided with a rear wheel 12.

[0057] Note: The rear axle assembly 9, the front axle assembly 10 and the vehicle body 8 are existing technical structures of tractors. The vehicle body 8 includes the cab, the power module 14, the chassis and other parts. Its detailed structure has nothing to do with the technical problem solved by the present invention and does not need to be described in detail. The common tractor bodies on the market can be directly used. In conventional tractors, since the gearbox and other structures in the rear axle assembly 9 occupy a large height space, the installation height of the rear wheel 12 is generally higher than the front wheel 11, making the diameter of the rear wheel 12 larger than the diameter of the front wheel 11, which restricts the ground clearance height of the front axle assembly 10. The power module 14 of the vehicle body 8 is provided on the upper part and the rear part of the front axle bracket 13. The power module 14 includes the engine, the cooling system, the fuel tank and the like. It is located under the engine cover of the vehicle body 8 and belongs to the existing technology on tractors.

[0058] By installing the final drive assembly with increased ground clearance of the present invention at both ends of the rear axle assembly 9, the installation height of the rear wheels 12 is lower than that of the rear wheels 12 of a conventional tractor, thereby increasing the ground clearance height at the rear of the tractor; at the same time, the front wheels 11 also need to use larger tires, thereby increasing the ground clearance height at the front of the tractor.

[0059] Furthermore, the diameter of the front wheel 11 is the same as the diameter of the rear wheel 12 .

[0060] The front wheel 11 and the rear wheel 12 adopt the same type of large tires to be convenient for increasing the ground clearance of the tractor.

[0061] Furthermore, the width of the front wheel 11 and the width of the rear wheel 12 are both no greater than 230 mm.

[0062] Tires of this width are narrow tires with high ground clearance for intercropping, which can effectively avoid crushing seedlings and are suitable for managing crops such as cotton and peppers.

[0063] In the description of the present invention, it should be understood that if there are descriptive terms indicating orientation, direction or positional relationship, such as: "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated in this specification is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of understanding the present invention and simplifying the description, and does not indicate or imply that the referred part, element or whole must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0064] In addition, if there are order description terms, such as "first", "second", etc., their use in this specification is to facilitate understanding or simplify the description. For example, in order to distinguish multiple technical features with the same type or function, but they have to be mentioned separately, this specification may use prefix or suffix order description terms to distinguish them. Therefore, it cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of such features. In the description of this utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0065] In the present invention, if terms describing the relative functional relationship of structures are used, such as "install", "connect", "connect", "fix", etc., they should be understood in a broad sense unless otherwise clearly specified and limited. For example, "install", "connect", "connect", etc. can be fixed connections, detachable connections, or integrated; can be mechanical connections or electrical connections; can be direct connections or indirect connections through an intermediate medium, can be internal connections between two elements or interactive relationships between two elements; "fix" can be fixed to form an integral body, or can be detachably fixed through fasteners; can be directly fixed or fixed through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above-mentioned descriptive terms in the present invention can be understood according to the specific circumstances, the context, the coherence of the preceding and following texts, etc.

[0066] In this utility model, if descriptive terms with ancillary or connecting meaning appear, for example, a first feature being "on" or "below" a second feature, these should not be interpreted as limiting unless otherwise expressly specified or limited. For example, "on" or "below" may refer to direct contact between the first and second features, or indirect contact between the first and second features through an intermediary. Those skilled in the art will understand the specific meanings of these descriptive terms in this utility model based on the specific circumstances, context, and coherence of the preceding and following texts.

[0067] Furthermore, when a first feature is “above,” “above,” or “above” a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0068] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments, examples and features of different embodiments and examples described in this specification, unless there is any contradiction, and these combinations or combinations should all fall within the scope summarized by the present invention.

[0069] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are illustrative and cannot be understood as limiting the present invention. Changes, modifications, substitutions and variations of the above embodiments made by ordinary technicians in the field within the scope of information available from public channels and in combination with the technical inspiration given by the application documents are still within the scope of protection of the present application.

Claims

1. A final drive assembly with increased ground clearance, characterized by: The invention comprises a gearbox (1), wherein an output disk (2) and a half-shaft housing (3) are provided on opposite sides of the gearbox (1), an output shaft is provided at the lower part of the gearbox (1), and the output shaft is connected to the output disk (2); one end of the half-shaft housing (3) is fixed to the upper part of the gearbox (1), an input half-shaft (4) and a transmission shaft (41) are provided in the half-shaft housing (3), the input half-shaft (4) is transmission-connected at one end opposite to the transmission shaft (41), the other end of the transmission shaft (41) extends into the gearbox (1) and is transmission-connected to the output shaft of the gearbox (1), and the other end of the input half-shaft (4) extends out of the half-shaft housing (3).

2. The final drive assembly with increased ground clearance according to claim 1, characterized in that: The half-shaft housing (3) is in the shape of a long cylinder, and both ends of the transmission shaft (41) are connected to the half-shaft housing (3) via bearings.

3. The final drive assembly with increased ground clearance according to claim 2, characterized in that: One end of the half-shaft housing (3) is connected to the gear box (1) via bolts.

4. The final drive assembly with increased ground clearance according to claim 3, characterized in that: A first flange (5) is provided at one end of the half-shaft housing (3), and the first flange (5) is connected to the gear box (1) via bolts.

5. The final drive assembly with increased ground clearance according to claim 1, characterized in that: The other end of the half-shaft housing (3) is provided with a second flange (6).

6. The final drive assembly with increased ground clearance according to claim 1, characterized in that: A vehicle body connecting frame (7) is also provided on the upper side of the half-axle housing (3).

7. The final drive assembly with increased ground clearance according to claim 1, characterized in that: A planetary gear mechanism (31) is provided between the opposite ends of the input half shaft (4) and the transmission shaft (41); the ring gear of the planetary gear mechanism (31) is fixed to the half shaft housing (3); the input half shaft (4) is connected to the sun gear of the planetary gear mechanism (31); and the transmission shaft (41) is connected to the planet carrier of the planetary gear mechanism (31).

8. A high-ground-clearance tractor comprising a vehicle body (8), a rear axle assembly (9), and a front axle assembly (10), wherein front wheels (11) are provided at both ends of the front axle assembly (10), a front axle bracket (13) is provided on the upper side of the middle portion of the front axle assembly (10), the front portion of the vehicle body (8) is connected to the front axle bracket (13), and the rear portion of the vehicle body (8) is connected to the rear axle assembly (9); characterized in that: Both ends of the rear axle assembly (9) are provided with a final drive assembly with increased ground clearance as described in any one of claims 1 to 7, a half-shaft housing (3) is fixed to the housing of the rear axle assembly (9), an input half-shaft (4) is transmission-connected to the output end of the rear axle assembly (9), and a rear wheel (12) is provided on the output disc (2).

9. The high ground clearance tractor according to claim 8, characterized in that: The diameter of the front wheel (11) is the same as the diameter of the rear wheel (12).

10. The high-clearance tractor according to claim 9, characterized in that: The width of the front wheel (11) and the width of the rear wheel (12) are both no greater than 230 mm.

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