Power reversing power high-low gear integrated module and transmission gearbox

Abstract

The utility model provides a kind of power reversing power high-low gear integrated module and transmission gearbox, comprising: power input shaft, forward gear, forward clutch, reverse clutch and reverse gear are sequentially arranged along the axial direction, forward clutch is used to combine or separate forward gear, reverse clutch is used to combine or separate reverse gear;Power output shaft, low gear, low clutch, high clutch, high gear and third gear are sequentially arranged along the axial direction, low clutch is used to combine or separate low gear, high clutch is used to combine or separate high gear, middle shaft, first gear and second gear are sequentially arranged along the axial direction, forward gear, low gear are all engaged with first gear, second gear and high gear are engaged, reverse gear and third gear are engaged.The utility model integrates four clutches by power input shaft, middle shaft and power output shaft three axes, and the degree of integration is higher, and high-speed reverse is cancelled, and the security risk is eliminated.

Description

Technical Field

[0001] This utility model belongs to the field of power transmission technology, and in particular relates to a power reversing high and low gear integrated module and transmission gearbox. Background Technology

[0002] In existing tractor transmissions, the power reversing and high / low gear structures are typically designed as separate modules, resulting in low integration and poor space utilization. Furthermore, current designs include high-power gears for both forward and reverse directions. Because high-speed reverse gears are very fast, they are difficult for the driver to control, posing a significant safety hazard. Therefore, in actual use, high-power gears are mostly applied to forward gears, as the high-power reverse structure easily leads to driver misoperation. Utility Model Content

[0003] The main purpose of this utility model is to propose a power reversing high and low gear integrated module and transmission gearbox, which aims to solve the technical problems of low integration of power reversing and high and low gear structure in the existing transmission gearbox and the existence of significant safety hazards.

[0004] To achieve the above objectives, this utility model provides a power reversing high / low gear integrated module, comprising: a power input shaft, with a forward gear, a forward clutch, a reverse clutch, and a reverse gear arranged sequentially along the axial direction; the forward clutch is used to engage or disengage the forward gear, and the reverse clutch is used to engage or disengage the reverse gear; a power output shaft, with a low gear, a low gear clutch, a high gear clutch, a high gear, and a third gear arranged sequentially along the axial direction; the low gear clutch is used to engage or disengage the low gear, and the high gear clutch is used to engage or disengage the high gear; and an intermediate shaft, with a first gear and a second gear arranged sequentially along the axial direction; the forward gear and the low gear mesh with the first gear, the second gear meshes with the high gear, and the reverse gear meshes with the third gear.

[0005] In this embodiment of the invention, the planes on which the power input shaft, the power output shaft, and the intermediate shaft lie are not coplanar.

[0006] In this embodiment of the utility model, the power reversing high and low gear integrated module is used for transmission gearbox, the power input shaft and the power output shaft are arranged sequentially along the width direction of the transmission gearbox, and the intermediate shaft is located between the power input shaft and the power output shaft along the width direction of the gearbox.

[0007] In this embodiment of the invention, the power input shaft and the intermediate shaft are arranged sequentially along the height direction of the transmission gearbox, and the power output shaft is located between the power input shaft and the intermediate shaft along the height direction of the transmission gearbox.

[0008] In this embodiment of the invention, the forward clutch and the reverse clutch share a single clutch outer hub; and / or, the high-gear clutch and the low-gear clutch share a single clutch outer hub.

[0009] This utility model also proposes a transmission gearbox, which includes a main transmission module, a secondary transmission module, a creeper gear module, and a power reversing high / low gear integrated module as described above. The power reversing high / low gear integrated module, the main transmission module, the secondary transmission module, and the creeper gear module are axially connected to each other in the transmission gearbox.

[0010] In this embodiment of the invention, the main transmission module is a four-speed transmission module, the auxiliary transmission module is a three-speed transmission module, and the crawler transmission module is a two-speed transmission module.

[0011] In this embodiment of the present invention, the main transmission module includes: a main transmission gear, comprising a first-speed main gear set, a second-speed main gear set, a third-speed main gear set, and a fourth-speed main gear set arranged sequentially along the axial direction of the transmission gearbox; a main transmission output shaft, which is connected to the power output shaft via the main transmission gear, and a first main shifter is provided on the main transmission output shaft, with the first-speed main gear set or the second-speed main gear set arranged axially on both sides of the first main shifter, the first main shifter being used to engage the first-speed main gear set or the second-speed main gear set; and a second main shifter, which is provided on the power output shaft, with the third-speed main gear set and the fourth-speed main gear set arranged axially on both sides of the second main shifter, the second main shifter being used to engage the third-speed main gear set or the fourth-speed main gear set.

[0012] In this embodiment of the present invention, the auxiliary transmission module includes: an auxiliary transmission gear, comprising a low-gear gear set, a medium-gear gear set, and a high-gear gear set arranged axially along the transmission gearbox; an auxiliary transmission input shaft, which is drivenly connected to the main transmission output shaft via a first transmission gear set, and a first auxiliary shifter is provided on the auxiliary transmission input shaft, with the low-gear gear set and the medium-gear gear set axially disposed on both sides of the first auxiliary shifter; and an auxiliary transmission output shaft, which is drivenly connected to the auxiliary transmission input shaft via the auxiliary transmission gear, and a second auxiliary shifter is provided on the auxiliary transmission output shaft, the second auxiliary shifter being used to engage or disengage the high-gear gear set.

[0013] In this embodiment of the present invention, the creeper gear module includes: a creeper gear, comprising a second transmission gear set and a reduction and torque-increasing gear set arranged sequentially along the axial direction of the transmission gearbox; a creeper shifter, disposed on the auxiliary transmission output shaft, wherein the second transmission gear set and the reduction and torque-increasing gear set are disposed on both sides of the creeper shifter, and the creeper shifter is used to engage the second transmission gear set or the reduction and torque-increasing gear set; and a creeper output shaft, which is drivenly connected to the auxiliary transmission output shaft through the creeper gear.

[0014] Through the above technical solution, the power reversing high and low gear integrated module provided by this utility model embodiment has the following beneficial effects: When using the power reversing high / low gear integrated module, for high-gear forward movement, the forward clutch engages the forward gear, and the high-gear clutch engages the high-gear gear. Power from the input shaft is transmitted to the intermediate shaft via the forward gear and the first gear. Power from the intermediate shaft is then transmitted to the output shaft via the second gear and the high-gear gear. For low-gear forward movement, the forward clutch engages the forward gear, and the low-gear clutch engages the low-gear gear. Power from the input shaft is transmitted to the intermediate shaft via the forward gear and the first gear. Power from the intermediate shaft is then transmitted to the output shaft via the first gear and the low-gear gear. For low-gear reverse movement, the reverse clutch engages the reverse gear. Power from the input shaft is directly transmitted to the output shaft via the reverse gear and the third gear. In this case, the other three clutches do not need to operate. The power reversing high / low gear integrated module of this utility model integrates four clutches through three shafts: the power input shaft, the intermediate shaft, and the power output shaft. Two clutches are paired and set on two separate shafts. The power reversing high / low gear and power reversing functions can be integrated into the power reversing high / low gear integrated module, which can realize three gears: high gear forward, low gear forward, and low gear reverse. The gear coverage is more comprehensive and meets more user scenarios. Compared with the existing technology where the power reversing high / low gear and power reversing functions are set separately, the power reversing high / low gear integrated module has a higher degree of integration. It also eliminates the high-speed reverse gear, so that the reverse gear does not need too many gears, reducing the amount of driver operation, thereby avoiding driver misoperation and eliminating the safety hazards of high-speed reverse gear.

[0015] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a structural schematic diagram of the power reversing high and low gear integrated module according to one embodiment of the present utility model; Figure 2 This is a partial structural schematic diagram of the power reversing high and low gear integrated module in one state according to an embodiment of the present invention; Figure 3 This is a partial structural schematic diagram of the power reversing high and low gear integrated module in another state according to one embodiment of the present invention; Figure 4 This is a structural schematic diagram of a transmission gearbox according to one embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures Detailed Implementation

[0018] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0019] The following description, with reference to the accompanying drawings, describes the power reversing high and low gear integrated module according to this utility model.

[0020] like Figures 1 to 3 As shown in the embodiment of this utility model, the power reversing high and low gear integrated module includes a power input shaft S1, an intermediate shaft S2, and a power output shaft S3. The power input shaft S1 is arranged axially with a forward gear 1, a forward clutch C1, a reverse clutch C2, and a reverse gear 4. The forward clutch C1 is used to engage or disengage the forward gear 1, and the reverse clutch C2 is used to engage or disengage the reverse gear 4. The power output shaft S3 is arranged axially with a low gear 3, a low gear clutch C3, a high gear clutch C4, a high gear 6, and a third gear 7. The low gear clutch C3 is used to engage or disengage the low gear 3, and the high gear clutch C4 is used to engage or disengage the high gear 6. The intermediate shaft S2 is arranged axially with a first gear 2 and a second gear 5. The forward gear 1 and the low gear 3 are both meshed with the first gear 2, the second gear 5 is meshed with the high gear 6, and the reverse gear 4 is meshed with the third gear 7.

[0021] It should be noted that the power reversing high / low gear integrated module is mainly used in the transmission gearboxes of agricultural machinery such as tractors. One of the power input shaft S1 and the power output shaft S3 is located in the upper part of the transmission gearbox, reducing clutch churning losses, thereby reducing the heat power of the transmission gearbox and improving overall working efficiency. Specifically, the four clutches can be electro-hydraulic clutches. Under electro-hydraulic control, the four clutches can achieve three gear power switching (i.e., high gear forward, low gear forward, and low gear reverse).

[0022] When using the power reversing high / low gear integrated module, for high-gear forward movement, the forward clutch C1 engages with the forward gear 1, and the high-gear clutch C4 engages with the high-gear gear 6. Power from the power input shaft S1 is transmitted to the intermediate shaft S2 via the engagement of the forward gear 1 and the first gear 2. Power from the intermediate shaft S2 is then transmitted to the power output shaft S3 via the engagement of the second gear 5 and the high-gear gear 6. For low-gear forward movement, the forward clutch C1 engages with the forward gear 1, and the low-gear clutch C3 engages with the low-gear gear 3. Power from the power input shaft S1 is transmitted to the intermediate shaft S2 via the engagement of the forward gear 1 and the first gear 2. Power from the intermediate shaft S2 is then transmitted to the power output shaft S3 via the engagement of the first gear 2 and the low-gear gear 3. For low-gear reverse movement, the reverse clutch C2 engages with the reverse gear 4. Power from the power input shaft S1 is directly transmitted to the power output shaft S3 via the engagement of the reverse gear 4 and the third gear 7. In this case, the other three clutches do not need to operate. In this embodiment, the power reversing high / low gear integrated module integrates four clutches through three shafts: the power input shaft S1, the intermediate shaft S2, and the power output shaft S3. Two clutches are paired and located on two separate shafts. This allows for the integration of high / low gear and power reversing functions into the module, enabling three gears: high forward, low forward, and low reverse. This provides more comprehensive gear coverage, meeting the needs of more user scenarios. Compared to existing technologies where high / low gear and power reversing functions are separately configured, this module offers higher integration and eliminates the need for a high-speed reverse gear, reducing driver workload, preventing driver error, and eliminating the safety hazards associated with high-speed reverse.

[0023] It should be noted that the planes on which the power input shaft S1, power output shaft S3, and intermediate shaft S2 lie are not coplanar. For example... Figure 1 As shown, the reverse gear 4 and the third gear 7 are always in a meshing relationship. Since the power input shaft S1 and the power output shaft S3 are arranged in a spatial manner, the dashed line between the reverse gear 4 and the third gear 7 represents the spatial meshing relationship.

[0024] like Figure 2 and Figure 3 As shown, the power input shaft S1, intermediate shaft S2, and power output shaft S3 are not arranged in the same plane, but are spatially distributed. This effectively reduces the axial space dimension, lowers the product's overall size and weight, and saves costs while still providing three gears. In this embodiment, the power reversing high and low gear integrated module is integrated into a three-axis spatial shaft system, resulting in a more compact axial and circumferential structure, thus reducing the size and weight of the gearbox.

[0025] In one embodiment, the power reversing high / low gear integrated module is used in the transmission gearbox. The power input shaft S1 and power output shaft S3 are sequentially arranged along the width direction of the transmission gearbox, and the intermediate shaft S2 is located between the power input shaft S1 and power output shaft S3 along the width direction. The width direction of the transmission gearbox can be left-right, and the height direction can be up-down. The axial directions of the power input shaft S1, intermediate shaft S2, power output shaft S3, and transmission gearbox are aligned, all in the front-back direction. The circumferential direction of the transmission gearbox includes both up-down and left-right directions. In this embodiment, the power input shaft S1 and power output shaft S3 are sequentially arranged along the left-right direction, and the intermediate shaft S2 is located between the power input shaft S1 and power output shaft S3 along the left-right direction, allowing the power input shaft S1, intermediate shaft S2, and power output shaft to fully utilize the space in the width direction of the transmission gearbox.

[0026] like Figure 2 and Figure 3 As shown, the power input shaft S1 and intermediate shaft S2 are arranged sequentially along the height direction of the transmission gearbox, and the power output shaft S3 is located between the power input shaft S1 and intermediate shaft S2 along the height direction of the transmission gearbox. In this embodiment, the power input shaft S1, power output shaft S3, and intermediate shaft S2 are arranged sequentially along the vertical direction, so that the power input shaft S1, power output shaft S3, and intermediate shaft S2 are staggered in the left and right directions, and also staggered in the vertical direction. This makes full use of the space in the width and height directions of the transmission gearbox, while saving axial space, greatly improving the space utilization rate of the power reversing high and low gear integrated module, and making the integration degree of the power reversing high and low gear integrated module higher.

[0027] Furthermore, the forward clutch C1 and reverse clutch C2 share a single clutch outer hub, as do the high-gear clutch C4 and low-gear clutch C3. The fact that the forward clutch C1 and reverse clutch C2 are housed together within the same clutch outer hub, and the high-gear clutch C4 and low-gear clutch C3 are housed together within the same clutch outer hub, allows the power reversing high / low gear integrated module in this embodiment to employ a four-clutch arrangement, with each pair sharing a single outer hub, saving axial dimensions and simplifying the components.

[0028] Beneficially, since there is no clutch on the intermediate shaft, the center distance between the intermediate shaft and the power input shaft / power output shaft is smaller, and the outer hub of the clutch can be misaligned between the two gears on the clutch, thereby reducing the circumferential size of the power reversing high and low gear integrated module.

[0029] like Figure 4As shown, this utility model also proposes a transmission gearbox, which includes a main transmission module, a secondary transmission module, a creeper gear module, and the aforementioned power reversing high / low gear integrated module. The power reversing high / low gear integrated module, the main transmission module, the secondary transmission module, and the creeper gear module are axially connected. In one embodiment, the power reversing high / low gear integrated module, the main transmission module, the secondary transmission module, and the creeper gear module are sequentially axially connected, and the specific structure of the power reversing high / low gear integrated module is as described in the above embodiments. Since the transmission gearbox adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here.

[0030] The transmission gearbox in this embodiment includes a power reversing high and low gear integrated module, a main transmission module, an auxiliary transmission module, and a creeper gear module, which are sequentially connected along the axial direction of the transmission gearbox and can be set with different gears according to different usage requirements.

[0031] Specifically, the main transmission module is a four-speed transmission module, the auxiliary transmission module is a three-speed transmission module, and the crawler transmission module is a two-speed transmission module. For example... Figure 3 As shown, in one embodiment of the transmission gearbox, the main transmission module is a four-speed transmission module, the auxiliary transmission module is a three-speed transmission module, and the crawler gear module is a two-speed transmission module, which enables the transmission gearbox to have 48F (48 forward gears) + 24R (24 reverse gears), for a total of 72 gears, with a wider speed range and more flexible driving.

[0032] It should be noted that the main transmission module includes main transmission gears, a main transmission output shaft S4, and a second main shifter T2. The main transmission gears include a first-speed main gear set 8, a second-speed main gear set 9, a third-speed main gear set 10, and a fourth-speed main gear set 11 arranged sequentially along the axial direction of the transmission. The main transmission output shaft S4 is connected to the power output shaft S3 via the main transmission gears. A first main shifter T1 is installed on the main transmission output shaft S4. The first-speed main gear set 8 or the second-speed main gear set 9 is arranged axially on both sides of the first main shifter T1, and the first main shifter T1 is used to engage the first-speed main gear set 8 or the second-speed main gear set 9. The second main shifter T2 is installed on the power output shaft S3. The third-speed main gear set 10 and the fourth-speed main gear set 11 are arranged axially on both sides of the second main shifter T2, and the second main shifter T2 is used to engage the third-speed main gear set 10 or the fourth-speed main gear set 11.

[0033] In this embodiment, the main transmission module and the power reversing high / low gear integrated module share the power output shaft S3, which can save transmission components. Furthermore, a first main shifter T1 and a second main shifter T2 are respectively set on the power output shaft S3 and the main transmission output shaft S4. The first main shifter T1 and the second main shifter T2 are arranged axially and spaced apart along the transmission gearbox, which can make full use of the axial space of the transmission gearbox. The first main shifter T1 is located close to the power reversing high / low gear integrated module. The first gear main gear set 8, the second gear main gear set 9, the third gear main gear set 10 and the fourth gear main gear set 11 each include two gears. One of the two gears is set on the power output shaft S3 and the other gear is set on the main transmission output shaft S4. The structure is simple and compact with a high degree of integration.

[0034] In this embodiment of the invention, the auxiliary transmission module includes auxiliary transmission gears, an auxiliary transmission input shaft S5, and an auxiliary transmission output shaft S6. The auxiliary transmission gears include a low-gear gear set 13, a medium-gear gear set 14, and a high-gear gear set 15 arranged along the axial direction of the transmission gearbox. In one embodiment, the low-gear gear set 13, the medium-gear gear set 14, and the high-gear gear set 15 can be arranged along the axial direction of the transmission gearbox. The auxiliary transmission input shaft S5 is connected to the main transmission output shaft S4 via a first transmission gear set 12. A first auxiliary shifter T3, the low-gear gear set 13, and the medium-gear gear set T6 are mounted on the auxiliary transmission input shaft S5. Group 14 is axially distributed on both sides of the first auxiliary shifter T3; the auxiliary transmission output shaft S6 is connected to the auxiliary transmission gear and the auxiliary transmission input shaft S5 through transmission transmission; the auxiliary transmission output shaft S6 is provided with a second auxiliary shifter T4. In one embodiment, the high gear group 15 can be provided on the side of the second auxiliary shifter T4 away from the first auxiliary shifter T3. The second auxiliary shifter T4 is used to engage or disengage the high gear group 15. In another embodiment, the high gear group 15 and the second auxiliary shifter T4 can be interchanged, so that the second auxiliary shifter T4 is provided on the side of the high gear group 15 away from the intermediate gear group 14.

[0035] In this embodiment, the auxiliary transmission module can share the auxiliary transmission output shaft S6 with the creeper transmission module. The auxiliary transmission output shaft S6 serves as both the output shaft and the input shaft of the creeper transmission module, saving transmission components. In this embodiment, the first auxiliary shifter T3 and the second auxiliary shifter T4 are respectively located on the auxiliary transmission input shaft S5 and the auxiliary transmission output shaft S6, and are arranged sequentially along the axial direction of the transmission gearbox, making full use of the axial space of the auxiliary transmission module. In this embodiment, the low-gear set 13, the medium-gear set 14, and the high-gear set 15 each include two gears. One of the two gears is located on the auxiliary transmission input shaft S5, and the other gear is located on the auxiliary transmission output shaft S6. The first transmission gear set 12 includes two gears. One gear of the first transmission gear set 12 is located on the main transmission output shaft S4, and the other gear is located on the auxiliary transmission input shaft S5. The structure is simple and compact with a high degree of integration.

[0036] In this embodiment of the utility model, the crawling gear module includes a crawling gear, a crawling shifter T5, and a crawling output shaft S7. The crawling gear includes a second transmission gear set 16 and a reduction and torque-increasing gear set 17 arranged sequentially along the axial direction of the transmission gearbox. The crawling shifter T5 is disposed on the auxiliary transmission output shaft S6. The second transmission gear set 16 and the reduction and torque-increasing gear set 17 are respectively disposed on both sides of the crawling shifter T5. The crawling shifter T5 is used to engage the second transmission gear set 16 or the reduction and torque-increasing gear set 17. The crawling output shaft S7 is connected to the auxiliary transmission output shaft S6 through the crawling gear.

[0037] In this embodiment, both the second transmission gear set 16 and the reduction and torque amplification gear set 17 include two gears. One of the two gears is located on the secondary transmission output shaft S6, and the other gear is located on the crawling output shaft S7. When no reduction or torque amplification is required, the crawling shifter T5 can engage with the second transmission gear set 16. Without reduction, the power on the secondary transmission output shaft S6 can be transmitted to the crawling output shaft S7 via the second transmission gear set 16. When a larger torque is required, the crawling shifter T5 can engage with the reduction and torque amplification gear set 17. The transmission ratio of the reduction and torque amplification gear set 17 can be set as needed, so that the power on the secondary transmission output shaft S6 is reduced and amplified before being transmitted to the crawling output shaft S7. The structure is simple, and the transmission gearbox can meet different operating conditions, including those requiring and not requiring reduction.

[0038] It should be noted that the first main shifter T1, the second main shifter T2, the first auxiliary shifter T3, the second auxiliary shifter T4, and the crawling shifter T5 can use synchronizers, shift sleeves, or sliding gears to complete the shifting.

[0039] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A power-reversing power high-low range integrated module, characterized by, The power reversing high / low gear integrated module includes: The power input shaft (S1) is provided with a forward gear (1), a forward clutch (C1), a reverse clutch (C2) and a reverse gear (4) in sequence along the axial direction. The forward clutch (C1) is used to engage or disengage the forward gear (1), and the reverse clutch (C2) is used to engage or disengage the reverse gear (4). The power output shaft (S3) is provided with a low gear (3), a low gear clutch (C3), a high gear clutch (C4), a high gear (6), and a third gear (7) in sequence along the axial direction. The low gear clutch (C3) is used to engage or disengage the low gear (3), and the high gear clutch (C4) is used to engage or disengage the high gear (6). The intermediate shaft (S2) is provided with a first gear (2) and a second gear (5) in sequence along the axial direction. The forward gear (1) and the low gear (3) are both meshed with the first gear (2), the second gear (5) is meshed with the high gear (6), and the reverse gear (4) is meshed with the third gear (7).

2. The power shifting and power reversing integrated module of claim 1, wherein, The planes in which the power input shaft (S1), the power output shaft (S3), and the intermediate shaft (S2) are located are not coplanar.

3. The power reversing high / low gear integrated module according to claim 2, characterized in that, The power reversing high and low gear integrated module is used for transmission gearbox. The power input shaft (S1) and the power output shaft (S3) are arranged sequentially along the width direction of the transmission gearbox. The intermediate shaft (S2) is located between the power input shaft (S1) and the power output shaft (S3) along the width direction of the gearbox.

4. The power shifting and power reversing integrated module of claim 3, wherein, The power input shaft (S1) and the intermediate shaft (S2) are arranged sequentially along the height direction of the transmission gearbox, and the power output shaft (S3) is located between the power input shaft (S1) and the intermediate shaft (S2) along the height direction of the transmission gearbox.

5. The power reversing high / low gear integrated module according to any one of claims 1 to 4, characterized in that, The forward clutch (C1) and the reverse clutch (C2) share a single clutch hub; And / or, The high-gear clutch (C4) and the low-gear clutch (C3) share a single clutch hub.

6. A transmission gearbox, characterized in that, The transmission gearbox includes a main transmission module, a secondary transmission module, a creeper gear module, and a power reversing high / low gear integrated module as described in any one of claims 1 to 5. The power reversing high / low gear integrated module, the main transmission module, the secondary transmission module, and the creeper gear module are axially connected to the transmission gearbox.

7. The transmission gearbox according to claim 6, characterized in that, The main transmission module is a four-speed transmission module, the auxiliary transmission module is a three-speed transmission module, and the crawler transmission module is a two-speed transmission module.

8. A transmission gearbox according to claim 7, characterised in that, The main transmission module includes: The main transmission gear includes a first-speed main gear set (8), a second-speed main gear set (9), a third-speed main gear set (10), and a fourth-speed main gear set (11) arranged sequentially along the axial direction of the transmission gearbox. The main transmission output shaft (S4) is connected to the main transmission gear and the power output shaft (S3) through transmission. A first main shifter (T1) is provided on the main transmission output shaft (S4). The first gear main gear set (8) or the second gear main gear set (9) is arranged axially on both sides of the first main shifter (T1). The first main shifter (T1) is used to engage the first gear main gear set (8) or the second gear main gear set (9). The second master shifter (T2) is disposed on the power output shaft (S3). The three-speed master gear set (10) and the four-speed master gear set (11) are disposed axially on both sides of the second master shifter (T2). The second master shifter (T2) is used to engage the three-speed master gear set (10) or the four-speed master gear set (11).

9. A transmission gearbox according to claim 8, characterised in that, The auxiliary transmission module includes: The auxiliary transmission gear includes a low-gear set (13), a medium-gear set (14), and a high-gear set (15) arranged along the axial direction of the transmission gearbox. The auxiliary transmission input shaft (S5) is connected to the main transmission output shaft (S4) via the first transmission gear set (12). The auxiliary transmission input shaft (S5) is provided with a first auxiliary shifter (T3). The low gear set (13) and the medium gear set (14) are axially arranged on both sides of the first auxiliary shifter (T3). The auxiliary transmission output shaft (S6) is connected to the auxiliary transmission input shaft (S5) via an auxiliary transmission gear. A second auxiliary shifter (T4) is provided on the auxiliary transmission output shaft (S6). The second auxiliary shifter (T4) is used to engage or disengage the high gear set (15).

10. A transmission gearbox according to claim 9, characterised in that, The crawling block module includes: The crawling gear includes a second transmission gear set (16) and a reduction and torque increasing gear set (17) arranged sequentially along the axial direction of the transmission gearbox. A creeper shifter (T5) is disposed on the secondary transmission output shaft (S6). The second transmission gear set (16) and the reduction and torque increasing gear set (17) are disposed on both sides of the creeper shifter (T5). The creeper shifter (T5) is used to engage the second transmission gear set (16) or the reduction and torque increasing gear set (17). The crawling output shaft (S7) is connected to the crawling gear and the secondary transmission output shaft (S6) via a transmission.

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