阅读说明：本技术 一种装载机用电传动变速器 (Electric transmission speed changer for loader ) 是由 崔国敏 张卫东 刘艳芳 卢凤臣 乔征 曹健榕 李治江 于 2020-07-16 设计创作，主要内容包括：本发明公开了一种装载机用电传动变速器,其特征在于：包括定轴齿轮传动部件、换挡操纵部件和电驱调速装置；其中定轴齿轮传动部件包括输入齿轮轴、输入齿轮、低速挡啮合齿轮副齿轮及齿轮、高速挡啮合齿轮副齿轮及齿轮、输出轴；换挡操纵部件包括三个离合器；电驱调速装置包括第一电动机和第二电动机；由此来实现由驾驶员操作确立多个变速挡位模式；其挡位为低速一挡传动模式、低速二挡传动模式、高速一挡传动模式以及高速二挡传动模式。具有连续无级变速与良好的起步性能。根据工作状况的变化,可以充分发挥各传动模式的性能,具有连续无级变速、结构简单、工作可靠等优点。(The invention discloses an electric transmission speed changer for a loader, which is characterized in that: comprises a fixed shaft gear transmission component, a gear shifting control component and an electric driving speed regulating device; the fixed shaft gear transmission part comprises an input gear shaft, an input gear, a low-speed gear meshing gear pinion and gear, a high-speed gear meshing gear pinion and gear and an output shaft; the gear shifting operation component comprises three clutches; the electric driving speed regulation device comprises a first motor and a second motor; thereby realizing the establishment of a plurality of gear shifting modes by the operation of a driver; the gears are a low-speed first-gear transmission mode, a low-speed second-gear transmission mode, a high-speed first-gear transmission mode and a high-speed second-gear transmission mode. Has continuous stepless speed change and good starting performance. According to the change of working condition, the performance of each transmission mode can be fully exerted, and the device has the advantages of continuous stepless speed change, simple structure, reliable work and the like.)

1. An electric transmission for a loader, characterized in that: comprises a fixed shaft gear transmission component, a gear shifting control component and an electric driving speed regulating device; the fixed shaft gear transmission part comprises an input gear shaft (3), an input gear (4), a low-speed gear meshing gear pinion (5) and a gear (6), a high-speed gear meshing gear pinion (7) and a gear (8), and an output shaft (9); the gear shifting operation component comprises a clutch (C1), a clutch (C2) and a clutch (C3); the electric drive speed regulation device comprises a first motor (1) and a second motor (2);

the connection relationship is as follows: the second motor (2) is connected with the input gear shaft (3), and the first motor (1) is connected with the driving part of the clutch (C1); the driven part of the clutch (C1) is connected with the input gear (4); the input gear shaft (3) and the input gear (4) are simultaneously meshed with a gear (8) in the high-speed gear meshing gear pair; the gear (7) in the high-speed gear meshing gear pair is connected with the driving part of the clutch (C2); the gear (6) in the low-speed gear meshing gear pair is connected with the driving part of the clutch (C3); the clutch (C2) and the driven part of the clutch (C3) are connected with the output shaft (9), so that the establishment of a plurality of gear shifting modes is realized through the operation of a driver; the gears are a low-speed first-gear transmission mode, a low-speed second-gear transmission mode, a high-speed first-gear transmission mode and a high-speed second-gear transmission mode.

2. The electrically variable transmission for a loader of claim 1, characterized in that: the low-speed first-gear transmission mode is as follows: the clutch (C1) and the clutch (C3) are combined, the clutch (C2) does not work, the second motor (2) is connected with the input gear shaft (3), the first motor (1) is connected with the input gear (4), and the low-speed gear meshing gear pinion (6) is connected with the output shaft (9).

3. The electrically variable transmission for a loader of claim 1, characterized in that: the low-speed two-gear transmission mode is as follows: the clutch (C1) and the clutch (C2) are combined, the clutch (C3) does not work, the second motor (2) is connected with the input gear shaft (3), the first motor (1) is connected with the input gear (4), and the high-speed gear meshing gear pinion 7 is connected with the output shaft (9).

4. The electrically variable transmission for a loader of claim 1, characterized in that: the high-speed first-gear transmission mode is as follows: the clutch (C3) is combined, the clutch (C1) and the clutch (C2) do not work, the second motor (2) is connected with the input gear shaft (3), and the low-speed gear meshing gear pinion (6) is connected with the output shaft (9).

5. The electrically variable transmission for a loader of claim 1, characterized in that: the high-speed two-gear transmission mode is as follows: when the clutch (C2) is engaged and the clutch (C1) and the clutch (C3) do not work, the second motor (2) is connected with the input gear shaft (3), and the high-speed gear meshing gear pinion 7 is connected with the output shaft (9).

Technical Field

The invention belongs to the technical field of electric transmission, and particularly relates to an electric transmission speed changer for a loader.

Background

Electric transmission technology has become a necessary trend of technical development worldwide, and various engineering machinery products applying the electric transmission technology have been brought to the market and have obtained good market feedback. For a loader, the load changes violently and the working condition is severe. The loader adopting the traditional power and transmission mode has poor operation comfort, poor fuel economy and high pollution emission. The electric drive loader has strong load adaptability, convenient operation, energy conservation and environmental protection. However, the performance of the existing electric motor cannot fully take the traction force and the vehicle speed of the loader into consideration, and a transmission for the electric transmission loader needs to be developed to reduce the power of the electric motor and optimize a transmission scheme, so that the advantage of electric transmission is better played.

The performance of a vehicle transmission has a significant impact on overall vehicle dynamics, fuel economy, emissions, and reliability. The electric transmission utilizes the motor to realize a wider stepless speed regulation range, has good starting characteristic and higher transmission efficiency, can optimize the power distribution of the motor according to the characteristics of working conditions, enables the vehicle to obtain the optimal working performance, can adapt to the requirements of vehicle economy, dynamic property and comfort, and is an ideal transmission form.

The present disclosure relates generally to electric loader transmissions and more particularly to electric transmissions for loader drive trains.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the electric transmission speed changer taking two motors as power sources, and the purposes of being suitable for the working condition of a loader, simple in structure, convenient to operate and high in transmission efficiency can be achieved.

The invention is realized in such a way that an electric transmission speed changer for a loader is characterized in that: comprises a fixed shaft gear transmission component, a gear shifting control component and an electric driving speed regulating device; the fixed shaft gear transmission part comprises an input gear shaft (3), an input gear (4), a low-speed gear meshing gear pinion (5) and a gear (6), a high-speed gear meshing gear pinion (7) and a gear (8), and an output shaft (9); the gear shifting operation component comprises a clutch (C1), a clutch (C2) and a clutch (C3); the electric driving speed regulation device comprises a first motor (1) and a second motor (2), and the connection relationship is as follows: the second motor (2) is connected with the input gear shaft (3), and the first motor (1) is connected with the driving part of the clutch (C1); the driven part of the clutch (C1) is connected with the input gear (4); the input gear shaft (3) and the input gear (4) are simultaneously meshed with a gear (8) in the high-speed gear meshing gear pair; the gear (7) in the high-speed gear meshing gear pair is connected with the driving part of the clutch (C2); the gear (6) in the low-speed gear meshing gear pair is connected with the driving part of the clutch (C3); the clutch (C2) and the driven part of the clutch (C3) are connected with the output shaft (9), so that the establishment of a plurality of gear shifting modes is realized through the operation of a driver; the gears are a low-speed first-gear transmission mode, a low-speed second-gear transmission mode, a high-speed first-gear transmission mode and a high-speed second-gear transmission mode.

In the above technical solution, preferably, the low-speed first-gear transmission mode is: the clutch (C1) and the clutch (C3) are combined, the clutch (C2) does not work, the second motor (2) is connected with the input gear shaft (3), the first motor (1) is connected with the input gear (4), and the low-speed gear meshing gear pinion (6) is connected with the output shaft (9).

In the above technical solution, preferably, the low-speed two-gear transmission mode is: the clutch (C1) and the clutch (C2) are combined, the clutch (C3) does not work, the second motor (2) is connected with the input gear shaft (3), the first motor (1) is connected with the input gear (4), and the high-speed gear meshing gear pinion 7 is connected with the output shaft (9).

In the above technical solution, preferably, the high-speed first-gear transmission mode is: the clutch (C3) is combined, the clutch (C1) and the clutch (C2) do not work, the second motor (2) is connected with the input gear shaft (3), and the low-speed gear meshing gear pinion (6) is connected with the output shaft (9).

In the above technical solution, preferably, the high-speed second-gear transmission mode is: when the clutch (C2) is engaged and the clutch (C1) and the clutch (C3) do not work, the second motor (2) is connected with the input gear shaft (3), and the high-speed gear meshing gear pinion 7 is connected with the output shaft (9).

The invention has the advantages and technical effects that: the technical scheme smoothly connects the low-speed working mode and the high-speed working mode by controlling the combination or the separation of the gear shifting control component, realizes the change of forward and backward gears through the motor, and has continuous stepless speed change and good starting performance. Meanwhile, a fixed shaft gear transmission part of the transmission is provided with a high mechanical gear and a low mechanical gear. The invention can realize four transmission modes, namely a low-speed two-gear mode, a high-speed two-gear mode and the like. According to the change of working condition, the performance of each transmission mode can be fully exerted, and the device has the advantages of continuous stepless speed change, simple structure, reliable work and the like.

Drawings

FIG. 1 is a schematic diagram of the transmission of an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Reference is made to the embodiment of fig. 1.

The structure mainly comprises a fixed shaft gear transmission component, a gear shifting control component and an electric driving speed regulating device; the fixed shaft gear transmission part comprises an input gear (shaft) 3, an input gear 4, a low-speed gear meshing gear pinion 5, a gear 6, a high-speed gear meshing gear pinion 7, a gear 8 and an output shaft 9; the shift operating components include clutch C1, clutch C2 and clutch C3; the electric drive speed regulating device comprises a first electric motor 1 and a second electric motor 2.

The connection relationship is as follows: the second motor 2 is connected with the input gear (shaft) 3, and the first motor 1 is connected with the driving part of the clutch C1; the passive portion of clutch C1 is connected to the input gear 4; the input gear (shaft) 3 and the input gear 4 are simultaneously meshed with a gear 8 in the high-speed gear meshing gear pair; the gear 7 of the high-speed gear meshing gear pair is connected with the driving part of the clutch C2; the gear 6 of the low-speed gear meshing gear pair is connected with the driving part of the clutch C3; the clutch C2 and the passive part of the clutch C3 are connected with the output shaft 9; the speed regulating component adopts a first motor 1 and a second motor 2; thereby realizing the establishment of a plurality of gear shifting modes by the operation of a driver; the gears are a low-speed first-gear transmission mode, a low-speed second-gear transmission mode, a high-speed first-gear transmission mode and a high-speed second-gear transmission mode.

The low-speed first-gear transmission mode is as follows: the clutch C1 and the clutch C3 are engaged, the clutch C2 is not operated, the second electric motor 2 is connected to the input gear (shaft) 3, the first electric motor 1 is connected to the input gear 4, and the low-speed meshing gear pinion 6 is connected to the output shaft 9.

The low-speed two-gear transmission mode is as follows: when the clutch C1 and the clutch C2 are engaged and the clutch C3 is not operated, the second electric motor 2 is connected to the input gear (shaft) 3, the first electric motor 1 is connected to the input gear 4, and the high-speed stage meshing gear pinion 7 is connected to the output shaft 9.

The high-speed first-gear transmission mode is as follows: when the clutch C3 is engaged and the clutches C1 and C2 are not operated, the second electric motor 2 is connected to the input gear (shaft) 3 and the low-speed meshing gear pinion 6 is connected to the output shaft 9.

The high-speed two-gear transmission mode is as follows: when the clutch C2 is engaged and the clutches C1 and C3 are not operated, the second electric motor 2 is connected to the input gear (shaft) 3 and the high-speed stage meshing gear pinion 7 is connected to the output shaft 9.

The technical scheme smoothly connects the low-speed working mode and the high-speed working mode by controlling the combination or the separation of the gear shifting control component, realizes the change of forward and backward gears through the motor, and has continuous stepless speed change and good starting performance. Meanwhile, a fixed shaft gear transmission part of the transmission is provided with a high mechanical gear and a low mechanical gear. The invention can realize four transmission modes, namely a low-speed two-gear mode, a high-speed two-gear mode and the like. According to the change of working condition, the performance of each transmission mode can be fully exerted, and the device has the advantages of continuous stepless speed change, simple structure, reliable work and the like.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.