Electromagnetic retarding single-motor two-gear loader gearbox

Abstract

The utility model provides an electromagnetic retarding single-motor two-gear loader gearbox. The electromagnetic retarding single-motor two-gear loader gearbox comprises a motor, a transmission gear set, a planet row and an output shaft which are sequentially connected, a gear shifting mechanism is arranged between the planet row and the output shaft, and the output shaft is provided with an electromagnetic retarder; a sun gear of the planet row is connected with the transmission gear set, and a planet carrier of the planet row is connected with the output shaft. The electromagnetic retarding single-motor two-gear loader gearbox solves the problem that an existing speed changing product cannot meet the use requirement of a pure electric loader.

Description

Technical Field

[0001] This utility model relates to the field of drive transmission devices, specifically to an electromagnetic retarder single-motor two-speed loader gearbox. Background Technology

[0002] With increasing environmental protection demands and increasingly stringent emission requirements for non-road mobile machinery, traditional fuel-powered loaders emit significant exhaust gases, while electric loaders, driven by electric motors, achieve zero emissions and are more environmentally friendly. However, the complex power-shift transmissions of traditional fuel-powered loaders are unsuitable for pure electric loaders due to the significant difference in traction between electric motors and engines, necessitating the development of new transmissions. These new transmissions must meet requirements such as uninterrupted shifting power, compact design, low weight, and high transmission efficiency, but existing products cannot fully satisfy these needs. Utility Model Content

[0003] To address the issue that existing transmission products cannot meet the usage requirements of pure electric loaders, this utility model provides an electromagnetic retarder single-motor two-speed loader transmission that solves the above-mentioned problem.

[0004] An electromagnetic retarder single-motor two-speed loader gearbox includes a motor, a transmission gear set, a planetary gear set, and an output shaft connected in sequence. A shifting mechanism is provided between the planetary gear set and the output shaft, and an electromagnetic retarder is provided on the output shaft. The sun gear of the planetary gear set is connected to the transmission gear set, and the planet carrier of the planetary gear set is connected to the output shaft.

[0005] In a preferred embodiment of the electromagnetic retarder single-motor two-speed loader gearbox provided by this utility model, the transmission gear set includes an input shaft and an intermediate shaft. The input shaft is connected to the motor and is provided with input teeth. The intermediate shaft is connected to the sun gear of the planetary gear set and is provided with intermediate teeth. The input teeth mesh with the intermediate teeth.

[0006] In a preferred embodiment of the electromagnetic slow-speed single-motor two-speed loader gearbox provided by this utility model, the intermediate shaft is a hollow shaft, with the intermediate gear and the sun gear of the planetary gear set on the outer side, and the output shaft passes through the intermediate shaft.

[0007] In a preferred embodiment of the electromagnetic slow-speed single-motor two-speed loader gearbox provided by this utility model, when the shifting mechanism is in first gear, the gear ring of the planetary gear set is fixed, and when the shifting mechanism is in second gear, the gear ring of the planetary gear set is connected to the output shaft.

[0008] In a preferred embodiment of the electromagnetic retarder single-motor two-speed loader gearbox provided by this utility model, the shifting mechanism includes a gear ring spline disposed on the planetary gear set, a fixed spline disposed on the device housing, and an output spline disposed on the output shaft; when the shifting mechanism is in first gear, the gear ring spline is connected to the fixed spline, and when the shifting mechanism is in second gear, the gear ring spline is connected to the output spline. The gear ring of the planetary gear set is retracted and slidably connected to the output shaft; a gear ring spline is provided on the outer side of the connection position.

[0009] Compared with existing technologies, the electromagnetic retarder single-motor two-speed loader gearbox provided by this utility model has the following advantages:

[0010] 1. The solution provided by this utility model adopts a simplified design, reduces the number of gears, eliminates the reverse gear structure, and utilizes the high-efficiency range and reversible characteristics of the motor to reduce costs and improve transmission efficiency. The two-gear design allows the most suitable gear to be selected according to different working conditions, optimizing power output. The two-gear design enables the loader to maintain optimal performance under different loads and speeds.

[0011] 2. The solution provided by this utility model adopts a planetary gear reducer, which improves transmission efficiency and reduces energy loss. Through the compact design of the planetary gear set, the gearbox achieves minimal size while maintaining powerful functionality, providing greater spatial freedom for the overall vehicle design. The compact structural design helps reduce material usage, thereby reducing overall weight.

[0012] 3. Compared with traditional hydraulic torque converters, the solution provided by this utility model has lower cost and higher transmission efficiency, which helps to reduce production costs and improve the economic benefits of enterprises. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an electromagnetic retarder single-motor two-speed loader gearbox;

[0014] The following are the numbered components in the diagram: 1. Motor; 2. Transmission gear set; 21. Input shaft; 22. Intermediate shaft; 23. Input gear; 24. Intermediate gear; 3. Planetary gear set; 4. Output shaft; 5. Gear shifting mechanism; 51. Fixed spline; 52. Gear ring spline; 53. Sliding sleeve; 54. Electromagnetic retarder; 6. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Please see Figure 1 This is a schematic diagram of the structure of the electromagnetic retarder single-motor two-speed loader gearbox provided by this utility model.

[0017] The electromagnetic retarder single-motor two-speed loader gearbox provided by this utility model includes a motor 1, a transmission gear set 2, a planetary gear set 3 and an output shaft 4 connected in sequence. A shifting mechanism 5 is provided between the planetary gear set 3 and the output shaft 4, and an electromagnetic retarder 6 is provided on the output shaft.

[0018] The transmission gear set 2 includes an input shaft 21 and an intermediate shaft 22 arranged in parallel, with input teeth 23 and intermediate teeth 24 meshing with each other on the two shafts respectively. The input shaft 21 is connected to the motor 1.

[0019] The input shaft 21 has bearings on both sides of the input gear 23. The right end of the intermediate shaft 22 is connected to the sun gear of the planetary gear set 3. The intermediate shaft 22 has bearings on both sides of the intermediate gear 24.

[0020] The intermediate shaft 22 is a hollow shaft through which the output shaft 4 passes. On the side of the planetary set 3 away from the intermediate shaft 22, the output shaft 4 extends out of the intermediate shaft 22 and meshes with the planet carrier of the planetary set 3. The gear ring of the planetary set 3 converges on the side of the planet carrier away from the intermediate shaft 22 and is slidably connected to the output shaft 4 at the center position via a bearing. Bearings are provided at both ends of the output shaft 4.

[0021] The gear ring has a gear ring spline 53 at the bearing position. In addition to the gear ring spline 53, the shifting mechanism 5 also includes a fixed spline 51, a shifting spline 52, and a sliding sleeve 54.

[0022] The fixed spline 51 and the shift spline 52 are respectively located on both sides of the gear ring spline 53, wherein the fixed spline 51 is fixed to the gearbox housing, and the shift spline 52 is fixed to the output shaft 4. By switching the position of the sliding sleeve 54, the fixed spline 51 can be connected to the gear ring spline 53, or the shift spline 52 can be connected to the gear ring spline 53, or only the gear ring spline 53 can be connected.

[0023] When the fixed spline 51 is connected to the gear ring spline 53, it is in low gear. The power is output to the output shaft 4 after being reduced by the planetary gear set 3.

[0024] When the shift spline 52 is connected to the gear ring spline 53, it is in the high gear position, the planetary gear set 3 rotates as a whole, and the power is directly output to the output shaft 4.

[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An electromagnetic retarder single-motor two-speed loader transmission, characterized by: The transmission comprises a motor, a transmission gear set, a planetary gear set and an output shaft connected in sequence, a shift mechanism is arranged between the planetary gear set and the output shaft, and the output shaft is provided with an electromagnetic retarder; the sun gear of the planetary gear set is connected to the transmission gear set, and the planet carrier of the planetary gear set is connected to the output shaft.

2. The electromagnetic retarder single-motor two-range loader transmission of claim 1, wherein: The transmission gear set comprises an input shaft and an intermediate shaft, the input shaft is connected to the motor and is provided with input teeth, and the intermediate shaft is connected to the sun gear of the planetary gear set and is provided with intermediate teeth, the input teeth and the intermediate teeth are in meshing engagement.

3. The electromagnetic retarder single-motor two-range loader transmission of claim 2, wherein: The intermediate shaft is a hollow shaft, the outer side of which is provided with the intermediate teeth and the sun gear of the planetary gear set, and the output shaft passes through the intermediate shaft.

4. The electromagnetic retarder single-motor two-range loader transmission of any one of claims 1 to 3, characterized in that: When the shift mechanism is in the first gear, the ring gear of the planetary gear set is fixed, and when the shift mechanism is in the second gear, the ring gear of the planetary gear set is connected to the output shaft.

5. The electromagnetic retarder single-motor two-range loader transmission of claim 4, wherein: The shift mechanism comprises ring gear splines arranged on the ring gear of the planetary gear set, fixed splines arranged on the device housing and output splines arranged on the output shaft; when the shift mechanism is in the first gear, the ring gear splines are connected to the fixed splines, and when the shift mechanism is in the second gear, the ring gear splines are connected to the output splines.

6. The electromagnetic retarder single-motor two-range loader transmission of claim 5, wherein: The ring gear of the planetary gear set is retracted and is in sliding connection with the output shaft; the ring gear splines are arranged on the outer side of the connection position.

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