Gearbox driven by double power sources

Abstract

The utility model discloses a dual-power-source driving gearbox. The dual-power-source driving gearbox comprises a gearbox shell; the power source output assembly comprises a first power source and a second power source which are arranged outside the gearbox shell; the first input shaft is used for receiving power input of a first power source; the second input shaft is used for receiving power input of a second power source; the first output shaft is connected with the first output shaft through a first gear set and used for transmitting the received power to a front axle; and the second output shaft is connected with the second output shaft through a second gear set and is used for transmitting the received power to the rear axle. Compared with the prior art, the two independent power sources are adopted to drive the front axle and the rear axle respectively, and the problems of insufficient power and frequent gear shifting caused by single power source input are solved. The double-power-source design can independently adjust the tire rotating speed according to the load change of the front axle and the rear axle, so that the sliding abrasion phenomenon is avoided, and power loss and tire abrasion are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of wheel loader gearbox, specifically is a kind of dual-power source drive gearbox. BACKGROUND

[0002] As the key equipment of earthwork, wheel loader needs to flexibly adjust power output and speed under different working conditions. When shoveling, the gearbox is required to provide large traction and faster speed at low gear. When transferring, high-speed driving at high gear is required. In traditional design, the loader relies on four tires of front and rear drive axles to drive simultaneously, but the conventional gearbox usually adopts single power source input, and one output shaft outputs the same speed to front and rear axles.

[0003] However, this design has obvious shortcomings. First, single power source input requires more power and more gears to meet the power demand of the loader, increasing system complexity and cost. Second, in V-type operation, the operator needs to frequently shift gears to obtain different power, increasing the difficulty and labor intensity of operation. Finally, due to the large difference and frequent change of front and rear axle load, the tire radius is inconsistent, causing the whole machine to slide and wear when walking, wasting power and accelerating tire wear. Especially when the front and rear axles share the same gearbox output shaft, it is impossible to independently adjust the tire speed according to the load change, making the problem more prominent.

[0004] To solve the above problems, the utility model provides an innovative technical scheme of dual-power source drive gearbox, aiming to optimize power transmission and speed control, and improve the operation efficiency and stability of the loader. INVENTION CONTENTS

[0005] To solve the above technical problems, the utility model provides a technical scheme: a dual-power source drive gearbox, comprising: a gearbox housing; a power source output assembly comprising a first power source and a second power source arranged outside the gearbox housing; a first input shaft rotatably arranged in the gearbox housing, which is used to receive power input from the first power source; a second input shaft rotatably arranged in the gearbox housing, which is used to receive power input from the second power source; a first output shaft rotatably arranged in the gearbox housing, connected to the first output shaft through a first gear set, used to transmit the received power to the front axle; a second output shaft rotatably arranged in the gearbox housing, connected to the second output shaft through a second gear set, used to transmit the received power to the rear axle.

[0006] Further, the first power source and the second power source both adopt low-torque high-speed motors.

[0007] Further, the gearbox housing is further provided with a clutch inside, which can selectively synchronize the first output shaft and the second output shaft to realize power output of the front axle and the rear axle at the same speed.

[0008] Further, the clutch is arranged between the first output shaft and the second output shaft and is used for connecting or interrupting the first input shaft and the second input shaft.

[0009] Further, the first input shaft and the second input shaft are on the same axis, and the first power source and the second power source are arranged on the two sides of the gearbox housing outside.

[0010] Further, the first input shaft and the second input shaft are parallel to each other, and the first power source and the second power source are arranged on the same side of the gearbox housing outside.

[0011] Further, the clutch is arranged between the first output shaft and the second output shaft and is used for connecting or interrupting the first output shaft and the second output shaft, and the first power source and the second power source are arranged on the two sides of the gearbox housing outside.

[0012] Compared with the prior art, the double-power-source driving gearbox has obvious technical advantages. By introducing two independent first power sources and second power sources, the front axle and the rear axle are driven respectively, effectively solving the problems of power shortage and frequent gear shifting caused by single power source input in traditional design. At the same time, the double-power-source design can independently adjust the tire speed according to the load change of the front axle and the rear axle, avoiding the sliding friction phenomenon caused by the inconsistent radius of the tires, reducing the power loss and tire wear.

[0013] In addition, the gearbox structure in the present application is compact and reasonable in layout, which can be optimized and adjusted according to different space layout requirements. Through the arrangement of the clutch, the synchronous or independent output of the front axle and the rear axle power is realized, which improves the adaptability and stability of the loader under different working conditions.

[0014] In summary, the double-power-source driving gearbox of the present application has obvious advantages in improving the working efficiency of the loader, reducing the maintenance cost and improving the overall performance, which provides strong support for the technical upgrading of earthwork equipment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic diagram of embodiment 1 of the present application.

[0016] Figure 2 is a structural schematic diagram of embodiment 2 of the present application.

[0017] Figure 3 is a structural schematic diagram of embodiment 3 of the present application.

[0018] As shown in the figure: 1, gearbox housing, 2, first power source, 3, second power source, 4, first input shaft, 5, second input shaft, 6, first output shaft, 7, second output shaft, 8, clutch. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0021] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0022] Furthermore, the technical solutions of each embodiment of the present application can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0023] Embodiment 1

[0024] Referring to the drawings Figure 1 To solve the above problems, the present application provides an innovative technical scheme of a dual-power-source-driven gearbox. The gearbox comprises a gearbox housing 1, and a first power source 2 and a second power source 3 located outside the gearbox housing 1. A first input shaft 4 and a second input shaft 5 are respectively arranged in the gearbox housing 1 for receiving power input from the first power source 2 and the second power source 3. The first output shaft 6 connected by the first gear set transmits power to the front axle, while the second output shaft 7 connected by the second gear set transmits power to the rear axle.

[0025] In this embodiment, the first power source 2 and the second power source 3 are both low-torque high-speed motors, so as to realize efficient power transmission. In addition, the clutch 8 arranged in the transmission housing 1 can selectively synchronize the first output shaft 6 and the second output shaft 7, so as to ensure that the front axle and the rear axle output power at the same speed. In particular, the clutch 8 is arranged between the first output shaft 6 and the second output shaft 7, and is used for power connection or interruption control of the first output shaft 6 and the second output shaft 7. The first input shaft 4 and the second input shaft 5 are located on the same axis, and the first power source 2 and the second power source 3 are arranged on the two sides of the transmission housing 1 respectively, so as to independently drive the front axle and the rear axle, and effectively solve the problem of speed difference of the tires caused by load change.

[0026] Meanwhile, the clutch 8 can be controlled in time according to the working condition, and when the clutch 8 is combined, the first output shaft 6 and the second output shaft 7 are coupled together and output power to the front axle and the rear axle at the same speed. When the front axle or the rear axle is insufficient in adhesion to the ground due to load change, the traction force is output to the other axle, so as to keep the traction force of the whole machine unchanged.

[0027] Embodiment 2

[0028] Referring to the drawings Figure 2 In a further technical solution, the double-power-source driving transmission of the utility model also comprises a transmission housing 1, a first power source 2, a second power source 3, a first input shaft 4, a second input shaft 5, a first output shaft 6 and a second output shaft 7. Different from the embodiment 1, the first input shaft 4 and the second input shaft 5 are arranged in parallel to each other in this embodiment, and the first power source 2 and the second power source 3 are arranged on the same side of the transmission housing 1.

[0029] Although the layout of the input shaft and the power source is adjusted, the low-torque high-speed motor is still used as the power source in this embodiment, and the clutch 8 arranged between the first output shaft 6 and the second output shaft 7 is used to realize synchronous or independent output of the power of the front axle and the rear axle. This layout optimization makes the transmission structure more compact and adapts to different space layout requirements.

[0030] Embodiment 3

[0031] Referring to the drawings Figure 3 As another variant of the utility model, the double-power-source driving transmission of this embodiment is similar in structure to the previous two examples, but the arrangement mode of the clutch 8 is different.

[0032] In the embodiment, the clutch 8 is arranged between the first input shaft 4 and the second input shaft 5 and is directly used for connection or interruption control of the first input shaft 4 and the second input shaft 5. Meanwhile, the first power source 2 and the second power source 3 are again arranged on the two sides outside the transmission housing 1 to ensure the independence and stability of power input. The clutch 8 is arranged in this way, so that the transmission can more flexibly cope with different working conditions while maintaining efficient power transmission. For example, when the ground adhesion of the front axle or the rear axle is insufficient due to load change, the clutch 8 is coupled to output the traction force to the other axle, thereby maintaining the stability of the whole machine traction.

[0033] Meanwhile, the clutch 8 can be timely controlled according to the working condition, and when the clutch 8 is combined, the first input shaft 4 and the second input shaft 5 are coupled together to output the same speed to the front axle and the rear axle. When the ground adhesion of the front axle or the rear axle is insufficient due to load change, the clutch 8 is coupled to output the traction force to the other axle, thereby maintaining the stability of the whole machine traction.

[0034] The above describes the utility model and its implementation mode, which is not limited, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired, without departing from the creative purpose of the utility model, without creative design, similar structure modes and embodiments of the technical scheme should belong to the protection scope of the utility model.

Claims

1. A dual power source drive transmission, characterized by, The application relates to a transmission housing (1), a power source output assembly comprising a first power source (2) and a second power source (3) arranged outside the transmission housing (1), a first input shaft (4) arranged to rotate in the transmission housing (1) and used for receiving power input from the first power source (2), a second input shaft (5) arranged to rotate in the transmission housing (1) and used for receiving power input from the second power source (3), a first output shaft (6) arranged to rotate in the transmission housing (1) and connected with the first output shaft (6) through a first gear set and used for transmitting the received power to a front axle, and a second output shaft (7) arranged to rotate in the transmission housing (1) and connected with the second output shaft (7) through a second gear set and used for transmitting the received power to a rear axle. The first power source (2) and the second power source (3) are both low-torque high-speed motors. The transmission housing (1) is internally provided with a clutch (8) capable of selectively synchronizing the first output shaft (6) and the second output shaft (7) to realize power output of the front axle and the rear axle at the same rotating speed. The clutch (8) is arranged between the first output shaft (6) and the second output shaft (7) and used for connecting or interrupting the first input shaft (4) and the second input shaft (5). The first input shaft (4) and the second input shaft (5) are arranged on the same axis and the first power source (2) and the second power source (3) are arranged on the two sides of the transmission housing (1) outside. The first input shaft (4) and the second input shaft (5) are parallel to each other and the first power source (2) and the second power source (3) are arranged on the same side of the transmission housing (1) outside. The clutch (8) is arranged between the first output shaft (6) and the second output shaft (7) and used for connecting or interrupting the first output shaft (6) and the second output shaft (7), and the first power source (2) and the second power source (3) are arranged on the two sides of the transmission housing (1) outside.

2. A dual power source drive transmission according to claim 1, wherein, ​ 3. A dual power source drive transmission according to claim 2, wherein, ​ 4. A dual power source drive transmission according to claim 3, wherein, ​ 5. A dual power source drive transmission as claimed in claim 4, wherein, ​ 6. A dual power source drive transmission as claimed in claim 4, wherein, ​ 7. A dual power source drive transmission as claimed in claim 3 wherein, ​

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