Two-in-one transmission of loading machine and loading machine

Abstract

The invention provides a loader two-in-one transmission and a loader, and relates to the technical field of loaders. The transmission comprises a power input shaft, a driving output shaft and an upper output shaft, the power input shaft, the driving output shaft and the upper-mounted output shaft are integrally installed on the same gearbox, and the driving output shaft and the upper-mounted output shaft are in on-off transmission connection with the power input shaft. The power input shaft can be driven through a power source, then power is provided for the driving output shaft and the loading output shaft, the integration degree of loading driving and advancing driving is improved, the overall layout space of the loading machine can be reduced, and the manufacturing cost of the loading machine can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of loaders, and in particular to a two-in-one transmission for a loader and a loader. Background Art

[0002] In existing technology, a loader's upper loading system and travel drive system typically utilize independent drive units and are equipped with separate power control systems. For electric loaders, this design requires separate electric motor drives for each, increasing the overall vehicle layout space and significantly raising manufacturing costs. Summary of the Invention

[0003] The object of the present invention is to provide a two-in-one transmission for a loader and a loader, so as to alleviate the technical problem of the large space requirement for the layout of the loader vehicle and improve the integration of the upper drive and the travel drive.

[0004] In a first aspect, the present invention provides a two-in-one transmission for a loader, comprising: a power input shaft, a drive output shaft, and a top load output shaft; The power input shaft, the drive output shaft and the upper body output shaft are integrally installed in the same gearbox, and the drive output shaft and the upper body output shaft are respectively connected to the power input shaft in an on-off transmission manner.

[0005] In combination with the first aspect, the present invention provides a first possible implementation manner of the first aspect, wherein the power input shaft and the upper body output shaft are coaxial, and an upper body shift sleeve is movably installed between the power input shaft and the upper body output shaft; One end of the upper-mounted shift sleeve is meshed with the upper-mounted output shaft for transmission, and the other end of the upper-mounted shift sleeve is connected to the power input shaft in an on-off transmission manner.

[0006] In combination with the first possible implementation of the first aspect, the present invention provides a second possible implementation of the first aspect, wherein a first needle roller bearing is installed between the power input shaft and the upper shift sleeve.

[0007] In combination with the first aspect, the present invention provides a third possible implementation of the first aspect, wherein the loader two-in-one transmission further includes a plurality of upper output shaft gears; The plurality of upper body output shaft gears are arranged at intervals around the upper body output shaft, and the plurality of upper body output shaft gears are respectively engaged with the upper body output shaft for transmission.

[0008] In combination with the first aspect, the present invention provides a fourth possible implementation manner of the first aspect, wherein the power input shaft and the drive output shaft are transmission-connected via an intermediate shaft; The drive output shaft is equipped with an output shaft first gear, a drive shift sliding sleeve and an output shaft second gear; The output shaft first gear and the output shaft second gear are respectively rotatably sleeved on the drive output shaft, and the output shaft first gear and the output shaft second gear are respectively transmission-connected to the intermediate shaft; The drive shift sleeve is provided with engaging teeth adapted to the first gear teeth of the output shaft and the second gear teeth of the output shaft. The drive shift sleeve is located between the first gear teeth of the output shaft and the second gear teeth of the output shaft, and is axially slidably sleeved on the drive output shaft, and the drive shift sleeve is circumferentially limited relative to the drive output shaft.

[0009] In combination with the fourth possible implementation manner of the first aspect, the present invention provides a fifth possible implementation manner of the first aspect, wherein the intermediate shaft comprises an intermediate shaft first gear engaged with the output shaft first gear, and the intermediate shaft first gear is integrally formed with the intermediate shaft; The intermediate shaft is equipped with an intermediate shaft second gear tooth, and the intermediate shaft second gear tooth and the intermediate shaft are circumferentially limited by a key; The power input shaft, the intermediate shaft second gear gear and the output shaft second gear gear are sequentially connected in transmission.

[0010] In combination with the fourth possible implementation of the first aspect, the present invention provides a sixth possible implementation of the first aspect, wherein one end of the drive output shaft is connected to a first flange and the other end is connected to a second flange, and one of the first flange and the second flange is used for transmission connection with the front wheel of the loader, and the other is used for transmission connection with the rear wheel of the loader.

[0011] In combination with the sixth possible implementation of the first aspect, the present invention provides a seventh possible implementation of the first aspect, wherein the first flange and the second flange are respectively connected to the drive output shaft through spline fitting.

[0012] In combination with the sixth possible implementation of the first aspect, the present invention provides an eighth possible implementation of the first aspect, wherein flange locking nuts are respectively connected to both ends of the drive output shaft, and the two flange locking nuts correspond one by one to press the first flange plate and the second flange plate inward.

[0013] In a second aspect, the present invention provides a loader equipped with the loader two-in-one transmission described in the first aspect.

[0014] The embodiments of the present invention bring the following beneficial effects: the power input shaft, the drive output shaft and the upper body output shaft are integrated and installed in the same gearbox, the drive output shaft and the upper body output shaft are respectively connected to the power input shaft in an on-off transmission manner, the power input shaft can be driven by a power source, and then power is provided to the drive output shaft and the upper body output shaft respectively, thereby improving the integration of the upper body drive and the travel drive, reducing the space requirement for the layout of the loader vehicle, and helping to reduce the manufacturing cost of the loader.

[0015] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in related technologies, the following briefly introduces the drawings required for use in the specific embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic diagram of a two-in-one transmission for a loader provided in an embodiment of the present invention.

[0018] Icons: 1-input shaft bearing; 2-input shaft; 3-intermediate shaft bearing; 4-intermediate shaft; 5-first flange; 6-flange connecting bolt; 7-flange locking nut; 8-drive output shaft; 9-drive output shaft bearing; 10-bearing spacer; 11-output shaft first gear; 12-drive shift sleeve; 13-output shaft second gear; 14-second needle roller bearing; 15-second flange; 16-intermediate shaft second gear; 17-key; 18-intermediate shaft bearing limiting snap ring; 19-upper mounted output shaft gear; 20-output shaft front bearing; 21-output shaft rear bearing; 22-first needle roller bearing; 23-upper mounted output shaft bearing; 24-output shaft bearing limiting spacer; 25-output shaft bearing limiting snap ring; 26-output shaft; 27-upper mounted shift sleeve. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and "third" are only used to describe the difference in names and cannot be understood as indicating or implying relative importance. Physical quantities in formulas, unless separately marked, should be understood as basic quantities of the International System of Units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation or integration.

[0021] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0022] like Figure 1 As shown, the two-in-one loader transmission provided by the present invention includes a power input shaft 2, a drive output shaft 8, and a superstructure output shaft 26. The power input shaft 2, the drive output shaft 8, and the superstructure output shaft 26 are integrated into a single transmission to form a compact, functionally integrated speed transmission system. The drive output shaft 8 and the superstructure output shaft 26 are each connected to the power input shaft 2 in a detachable transmission manner.

[0023] Among them, the drive output shaft 8 and the upper output shaft 26 can respectively realize power transmission with the power input shaft 2 through gear transmission and other forms. In the power transmission route, the power on-off state can also be controlled by devices such as clutches and shifters.

[0024] In an alternative embodiment, the power input shaft 2 receives power input from the loader's engine or motor. A first clutch assembly may be provided between the power input shaft 2 and the drive output shaft 8. By controlling the engagement and disengagement of this first clutch assembly, an on / off transmission connection between the power input shaft 2 and the drive output shaft 8 is achieved. The drive output shaft 8 transmits power to the loader's travel system, such as the transmission output shaft, which connects to the drive axle, thereby driving the wheels.

[0025] In an optional embodiment, a second clutch assembly may be provided between the power input shaft 2 and the bodywork output shaft 26. By controlling the engagement and disengagement of the second clutch assembly, an on / off transmission connection between the power input shaft 2 and the bodywork output shaft 26 can be achieved. The bodywork output shaft 26 is used to transmit power to the bodywork operating devices, such as the loader's hydraulic pump and working device drive mechanism, to perform operations such as loading, lifting, and dumping.

[0026] Furthermore, the first clutch assembly and the second clutch assembly can adopt common structures such as electromagnetic clutch, hydraulic clutch or multi-plate friction clutch, and their control methods can be manual control, electric control or hydraulic control, and are selected and configured according to actual usage requirements.

[0027] In an alternative embodiment, a reduction gear set is provided between the drive output shaft 8 and the power input shaft 2 to achieve deceleration and torque increase during power transmission, thereby meeting the traction requirements of the loader during travel. Similarly, an independent transmission gear set can be provided between the upper load output shaft 26 and the power input shaft 2 to achieve power matching for the upper load working device.

[0028] The loader can selectively engage either the drive output shaft 8 or the superstructure output shaft 26, or both simultaneously, depending on the operating state. For example, in driving mode, only the first clutch assembly is engaged, and power is driven through the drive output shaft 8 to drive the wheels. In operating mode, the second clutch assembly is engaged, and power is driven through the superstructure output shaft 26 to drive the working device. In combined operating conditions, both clutch assemblies are engaged simultaneously, enabling simultaneous driving and operation. This integrated control of drive and superstructure power output improves the loader's operating efficiency and operational flexibility. It boasts a compact structure, simple operation, and rapid response, making it suitable for a wide range of loading machines.

[0029] In an embodiment of the present invention, the power input shaft 2 is coaxial with the upper body output shaft 26, and an upper body shift sleeve 27 is movably installed between the power input shaft 2 and the upper body output shaft 26; one end of the upper body shift sleeve 27 is engaged with the upper body output shaft 26 for transmission, and the other end of the upper body shift sleeve 27 is connected to the power input shaft 2 in an on-off transmission manner.

[0030] Specifically, one end of the upper-mounted shift sleeve 27 is equipped with a meshing structure (e.g., a spline or gear teeth) that mates with the upper-mounted output shaft 26, thereby forming a fixed transmission connection with the upper-mounted output shaft 26. When the shift sleeve moves axially to this end position, power can be transmitted from the upper-mounted shift sleeve 27 to the upper-mounted output shaft 26, achieving power output. The other end of the upper-mounted shift sleeve 27 is provided with a switchable transmission connection structure with the power input shaft 2. For example, this end may also be equipped with a spline structure or a clutch structure that mates with a corresponding structure on the power input shaft 2. When the upper-mounted shift sleeve 27 slides to this end position, it engages with the power input shaft 2, enabling power transmission between the power input shaft 2 and the upper-mounted shift sleeve 27. When the sleeve moves out of this end position, the transmission between the power input shaft 2 and the upper-mounted shift sleeve 27 is disconnected, interrupting power transmission. By controlling the axial position of the upper-mounted shift sleeve 27, different operating modes can be switched. For example, in the first position, the upper body shift sleeve 27 is engaged with the power input shaft 2 and separated from the upper body output shaft 26. At this time, power cannot be output to the upper body components; in the second position, the upper body shift sleeve 27 is engaged with the power input shaft 2 and the upper body output shaft 26 at the same time to achieve power transmission; in the third position, the upper body shift sleeve 27 is only engaged with the upper body output shaft 26 and disconnected from the power input shaft 2, thereby achieving power lock or neutral state.

[0031] Furthermore, the axial movement of the upper-mounted shift sleeve 27 is driven by a shift actuator, such as a hydraulic cylinder, electromagnetic drive, or manual shift mechanism. This shift actuator, connected to a control system, automatically or manually controls the position of the shift sleeve based on operating conditions, enabling flexible control of the power transmission path. Synchronizing devices (such as synchronizer rings or synchronizer gears) can be installed between the power input shaft 2 and the upper-mounted shift sleeve 27, and between the upper-mounted shift sleeve 27 and the upper-mounted output shaft 26 to reduce shift shock and improve shift smoothness and reliability.

[0032] Furthermore, a first needle roller bearing 22 is installed between the power input shaft 2 and the upper-mounted shift sleeve 27. One end of the upper-mounted shift sleeve 27 is inserted into the power input shaft 2, and the other end is inserted into the upper-mounted output shaft 26, thereby ensuring the coaxiality of the power input shaft 2, the upper-mounted shift sleeve 27, and the upper-mounted output shaft 26. The first needle roller bearing 22 provides lubrication between the power input shaft 2 and the upper-mounted shift sleeve 27, reducing resistance to the power input shaft 2 when power transmission between the upper-mounted shift sleeve 27 and the power input shaft 2 is disconnected.

[0033] Furthermore, the loader's two-in-one transmission also includes a plurality of upper-mounted output shaft gears 19; the plurality of upper-mounted output shaft gears 19 are spaced apart around the upper-mounted output shaft 26, and the plurality of upper-mounted output shaft gears 19 are respectively meshed with the upper-mounted output shaft 26 for transmission. The plurality of upper-mounted output shaft gears 19 are respectively connected to corresponding upper-mounted power output interfaces. For example, a helical gear meshing structure is adopted between the hydraulic pump upper-mounted output shaft gear 19 and the upper-mounted output shaft 26 to improve transmission smoothness and load-bearing capacity. In an optional embodiment, spur gears, bevel gears or other meshing forms can also be adopted according to actual application requirements, as long as effective power transmission between the upper-mounted output shaft 26 and the plurality of upper-mounted output shaft gears 19 can be achieved. The drive shaft is used to transmit the power output of the transmission to the upper-mounted working device of the loader. This structural design facilitates the realization of a "one-axis, multiple-output" power distribution mode, meeting the needs of collaborative operation of multiple devices under different working conditions.

[0034] Furthermore, the power input shaft 2 is connected to the drive output shaft 8 through the intermediate shaft 4; the drive output shaft 8 is equipped with an output shaft first gear 11, a drive shift sleeve 12 and an output shaft second gear 13; the output shaft first gear 11 and the output shaft second gear 13 are respectively lubricated and rotated on the drive output shaft 8 through a second needle bearing 14, and the output shaft first gear 11 and the output shaft second gear 13 are respectively connected to the intermediate shaft 4; the drive shift sleeve 12 is provided with engaging teeth that adapt to the output shaft first gear 11 and the output shaft second gear 13, the drive shift sleeve 12 is located between the output shaft first gear 11 and the output shaft second gear 13, and is axially slidably sleeved on the drive output shaft 8, and the drive shift sleeve 12 is circumferentially limited relative to the drive output shaft 8. The drive shift sleeve 12 is provided with engaging teeth (i.e., shift teeth) at both ends that mate with the output shaft's first gear teeth 11 and second gear teeth 13, respectively. When the drive shift sleeve 12 slides axially to one end, its engaging teeth mesh with the teeth of the corresponding gear (first gear teeth or second gear teeth), thereby locking the gear to the drive output shaft 8 and causing it to rotate synchronously with the drive output shaft 8, achieving power output. When the drive shift sleeve 12 slides closer to the output shaft's first gear teeth 11, its engaging teeth mesh with those of the output shaft's first gear teeth 11, causing the output shaft's first gear teeth 11 to rotate synchronously with the drive output shaft 8, with power transmitted through the first gear teeth. When the drive shift sleeve 12 slides closer to the output shaft's second gear teeth 13, its engaging teeth mesh with those of the output shaft's second gear teeth 13, causing the output shaft's second gear teeth 13 to rotate synchronously with the drive output shaft 8, with power transmitted through the second gear teeth, thereby achieving power output in two different gears.

[0035] The output shaft first gear teeth 11 and the output shaft second gear teeth 13 are respectively connected to corresponding gears on the intermediate shaft 4 through gear meshing. This means that after power is input from the power input shaft 2, it is transmitted through the intermediate shaft 4 to the output shaft first gear teeth 11 or the output shaft second gear teeth 13. Ultimately, through the shifting action of the drive shift sleeve 12, power output is achieved by driving the output shaft 8 to different gear positions. During the shifting process, axial movement of the drive shift sleeve 12 is achieved by an operating mechanism (such as a manual shift lever, hydraulic cylinder, or motor drive). The specific structure can be designed according to actual application requirements.

[0036] See also Figure 1 The end of the power input shaft 2 facing away from the upper-mounted shift sleeve 27 is sleeved with the input shaft bearing 1, and the output shaft 26 is sleeved with the upper-mounted output shaft bearing 23. The upper-mounted output shaft bearing 23 is fixed to the output shaft 26 by the output shaft bearing limiting spacer 24 and the output shaft bearing limiting snap ring 25. In addition, each upper-mounted output shaft gear 19 is mounted with the output shaft front bearing 20 at one end and the output shaft rear bearing 21 at the other end, ensuring that each upper-mounted output shaft gear 19 can rotate smoothly and steadily.

[0037] In addition, intermediate shaft bearings 3 are installed at both ends of the intermediate shaft 4 , and the intermediate shaft bearings 3 are axially limited by intermediate shaft bearing limiting snap rings 18 installed on the intermediate shaft 4 .

[0038] Furthermore, the intermediate shaft 4 has an intermediate shaft first gear tooth engaged with the output shaft first gear tooth 11, and the intermediate shaft first gear tooth and the intermediate shaft 4 are integrally formed; the intermediate shaft 4 is installed with an intermediate shaft second gear tooth 16, and the intermediate shaft second gear tooth 16 and the intermediate shaft 4 are circumferentially limited by a key 17; the power input shaft 2, the intermediate shaft second gear tooth 16 and the output shaft second gear tooth 13 are sequentially connected in transmission.

[0039] Specifically, the intermediate shaft 4 is integrally formed with an intermediate shaft first gear tooth 11, which is constantly meshed with the corresponding first gear tooth on the output shaft to form a first gear power transmission path. Since the intermediate shaft first gear tooth 11 and the intermediate shaft 4 are an integral structure, no additional assembly fixing structure is required, thereby improving the coaxiality accuracy between the gear and the shaft, and enhancing the stability and load-bearing capacity of the transmission. The intermediate shaft second gear tooth 16 is a detachable structure, which is circumferentially limited with the intermediate shaft 4 through the key 17 to ensure that no relative rotation occurs during power transmission. The design of the key 17 allows the intermediate shaft second gear tooth 16 to be assembled and adjusted to a certain extent in the axial direction to meet the fine-tuning requirements of the transmission center distance for different models, thereby improving the adaptability and versatility of the speed change structure.

[0040] Furthermore, one end of the drive output shaft 8 is connected to the first flange 5 and the other end is connected to the second flange 15. One of the first flange 5 and the second flange 15 is used to be connected to the front wheel transmission of the loader, and the other is used to be connected to the rear wheel transmission of the loader, so that the loader can achieve full-time four-wheel drive.

[0041] In addition, the first flange 5 and the second flange 15 are respectively connected to the drive output shaft 8 through spline fitting, thereby having a strong torque bearing capacity.

[0042] Flange lock nuts 7 are connected to both ends of the drive output shaft 8. The two flange lock nuts 7 correspond to each other and press the first flange 5 and the second flange 15 inward, thereby ensuring that the first flange 5 and the second flange 15 are axially fixed relative to the drive output shaft 8. In addition, a plurality of flange connection bolts 6 are installed at intervals along the circumference of the first flange 5 and the second flange 15, respectively, and are used to connect and fix the downstream drive shaft.

[0043] In addition, the drive output shaft 8 is rotatably engaged in the gearbox through two drive output shaft bearings 9, one of which is adjacent to the output shaft first gear 11, with a bearing spacer 10 arranged between the two; the other drive output shaft bearing 9 is adjacent to the output shaft second gear 13, with a bearing spacer 10 also arranged between the two.

[0044] The loader provided in the embodiment of the present invention is equipped with the loader two-in-one transmission described in the above embodiment. It has the technical advantages of the loader two-in-one transmission, can reduce the space requirement for the layout of the loader vehicle, and is conducive to reducing the manufacturing cost of the loader.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A two-in-one transmission for a loader, characterized in that: include: A power input shaft (2), a drive output shaft (8) and an upper output shaft (26); The power input shaft (2), the drive output shaft (8) and the upper output shaft (26) are integrated and installed in the same gearbox, and the drive output shaft (8) and the upper output shaft (26) are respectively connected to the power input shaft (2) in an on-off transmission manner.

2. The loader two-in-one transmission according to claim 1, characterized in that: The power input shaft (2) is coaxial with the upper body output shaft (26), and an upper body shift sleeve (27) is movably installed between the power input shaft (2) and the upper body output shaft (26); One end of the upper gear shift sleeve (27) is meshed with the upper output shaft (26) for transmission, and the other end of the upper gear shift sleeve (27) is connected to the power input shaft (2) in an on-off transmission manner.

3. The two-in-one transmission for a loader according to claim 2, characterized in that: A first needle roller bearing (22) is installed between the power input shaft (2) and the upper gear shift sleeve (27).

4. The two-in-one transmission for a loader according to any one of claims 1 to 3, characterized in that: The loader two-in-one transmission further includes a plurality of upper output shaft gears (19); The plurality of upper mounting output shaft gears (19) are arranged at intervals around the upper mounting output shaft (26), and the plurality of upper mounting output shaft gears (19) are respectively meshed with the upper mounting output shaft (26) for transmission.

5. The two-in-one transmission for a loader according to claim 1, characterized in that: The power input shaft (2) and the drive output shaft (8) are connected in transmission via an intermediate shaft (4); The drive output shaft (8) is provided with an output shaft first gear (11), a drive shift sleeve (12) and an output shaft second gear (13); The output shaft first gear (11) and the output shaft second gear (13) are respectively rotatably sleeved on the drive output shaft (8), and the output shaft first gear (11) and the output shaft second gear (13) are respectively transmission-connected to the intermediate shaft (4); The drive shift sleeve (12) is provided with engaging teeth adapted to the output shaft first gear tooth (11) and the output shaft second gear tooth (13); the drive shift sleeve (12) is located between the output shaft first gear tooth (11) and the output shaft second gear tooth (13), and is axially slidably sleeved on the drive output shaft (8); and the drive shift sleeve (12) is circumferentially limited relative to the drive output shaft (8).

6. The two-in-one transmission for a loader according to claim 5, characterized in that: The intermediate shaft (4) has an intermediate shaft first gear tooth meshing with the output shaft first gear tooth (11), and the intermediate shaft first gear tooth and the intermediate shaft (4) are integrally formed; The intermediate shaft (4) is equipped with an intermediate shaft second gear tooth (16), and the intermediate shaft second gear tooth (16) and the intermediate shaft (4) are circumferentially limited by a key (17); The power input shaft (2), the intermediate shaft second gear teeth (16) and the output shaft second gear teeth (13) are sequentially connected in transmission.

7. The two-in-one transmission for a loader according to claim 5, characterized in that: One end of the drive output shaft (8) is connected to a first flange (5), and the other end is connected to a second flange (15); one of the first flange (5) and the second flange (15) is used for transmission connection with the front wheel of the loader, and the other is used for transmission connection with the rear wheel of the loader.

8. The two-in-one transmission for a loader according to claim 7, characterized in that: The first flange (5) and the second flange (15) are respectively connected to the drive output shaft (8) through spline fitting.

9. The two-in-one transmission for a loader according to claim 7 or 8, characterized in that: Both ends of the drive output shaft (8) are connected to flange locking nuts (7), respectively. The two flange locking nuts (7) press the first flange (5) and the second flange (15) inwardly in a one-to-one correspondence.

10. A loader, characterized in that: The loader is equipped with the loader two-in-one transmission according to any one of claims 1 to 9.

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