CN216002196U - Electric engineering vehicle transmission structure - Google Patents
Electric engineering vehicle transmission structure Download PDFInfo
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- CN216002196U CN216002196U CN202121911170.7U CN202121911170U CN216002196U CN 216002196 U CN216002196 U CN 216002196U CN 202121911170 U CN202121911170 U CN 202121911170U CN 216002196 U CN216002196 U CN 216002196U
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- torque
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- gear
- transmission structure
- vehicle transmission
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Abstract
The utility model provides an electric engineering vehicle transmission structure capable of preventing a motor or a transmission system from being damaged when the electric engineering vehicle suddenly encounters resistance and cannot work during operation.
Description
Technical Field
The present invention relates to a motor-driven construction vehicle.
Background
The power of the internal combustion engine is transmitted to wheels and the like through the hydraulic torque converter and the gearbox, and when the vehicle moves and a bucket meets a fixed or high-resistance obstacle in the operation process of the loader, the vehicle can stop instantly, and due to the existence of the hydraulic torque converter, the impact can be buffered, so that the influence on the internal combustion engine can be avoided.
With the popularization and application of new energy in vehicles, motors are beginning to be used in engineering vehicles such as loaders and the like, generally, the motors directly transmit power to wheels through a speed reducer or a gear of a gearbox, when the vehicles stop due to resistance in the same process of traveling, because the rotor of the motor is stopped instantly from a high-speed rotating state, the rotational inertia of the motor is large, the rotor, a motor shaft, a link, the gear and the like of the motor are subjected to large impact due to rapid stop, and the motor or a transmission system can be damaged, therefore, a structure capable of adapting to the working condition of the loader is needed, and a foundation is laid for the electromotion of the loader.
Disclosure of Invention
The utility model aims to provide a transmission structure of an electric engineering vehicle, which can prevent a motor or a transmission system from being damaged when the electric engineering vehicle suddenly encounters resistance and cannot work during operation.
In order to achieve the purpose, the transmission structure of the electric engineering vehicle comprises a motor and a gear transmission mechanism, wherein a torque limiter is arranged on the motor and the gear transmission mechanism, and the torque of the motor is transmitted to the gear transmission mechanism through the torque limiter.
In the transmission structure of the electric engineering vehicle, the torque limiter can transmit the torque which is larger than the maximum output torque of the motor but smaller than the damaged torque of the gear transmission system.
In the electric engineering vehicle transmission structure, the torque limiter is a friction clutch, and the motor shaft is connected with the input shaft of the gear transmission mechanism through the friction clutch.
In the transmission structure of the electric engineering vehicle, the gear transmission mechanism is a gearbox.
The utility model has the beneficial effects that: the torque limiter, also called torque limiter, safety coupling and safety clutch, belongs to the existing technology, and its main function is overload protection, and when the required torque exceeds the set value due to overload or mechanical failure, it can limit the transmitted torque in the form of slip.
The utility model has the innovative structure that: a torque limiting mechanism is arranged between the motor and the gear transmission mechanism, the maximum transmission torque of the mechanism is between the maximum output torque of the motor and the damaged torque of the gear transmission mechanism, when the power system is subjected to torque larger than the maximum torque which can be transmitted by the torque limiter, the torque limiter slips to consume impact energy, and when the power system is subjected to torque smaller than the maximum torque which can be transmitted by the torque limiter, the torque limiter does not slip, so that the torque of the motor is transmitted to the gear transmission mechanism almost without loss.
The structure can protect power systems such as the motor and the like from being damaged by impact energy, can keep high transmission efficiency, and has good practical value for the motor in the application field of impact operation of a loader and the like.
The utility model is suitable for various electric systems of vehicles which have sudden stop when meeting with a block in operation.
The torque limiter can be various mechanisms such as a friction clutch and the like, wherein the input end and the output end can rotate relatively after the torque reaches a certain value, and the specific structure of the torque limiter does not influence the protection scope of the claims of the utility model.
The torque limiter is arranged between the motor and the gear transmission mechanism, and can be any link between a rotor of the motor and the gear.
The gear transmission mechanism may be a reducer, a gear reducer with only one transmission ratio, or a transmission with multiple transmission ratios, and may be a separate component or may be integrated with the motor, which does not affect the protection scope of the present invention.
Drawings
Fig. 1 is a schematic diagram of a transmission structure of an electric loader.
Detailed Description
Referring to fig. 1, the transmission structure of the electric loader includes a motor 1 having a motor shaft connected to an input end of a friction clutch 2, the friction clutch 2 having an output end connected to a gear shaft 31 of a fixed gear 3, the gear 3 being engaged with a speed change gear 4, and a speed change gear shaft 41 of the fixed speed change gear 4 being connected to other gears, etc. The fixed gear 3, the gear shaft 31, the change gear 4, the change gear shaft 41, other gears, etc. constitute a gear transmission system to drive wheels, buckets, etc. to work.
The friction clutch 2 is capable of transmitting a torque greater than the maximum output torque of the electric machine but less than the gear damage torque.
Claims (4)
1. The utility model provides an electric engineering vehicle transmission structure, includes the motor, gear drive, characterized by: the motor and the gear transmission mechanism are provided with a torque limiter, and the torque of the motor is transmitted to the gear transmission mechanism through the torque limiter.
2. The electric working vehicle transmission structure according to claim 1, wherein: the torque limiter is capable of delivering a torque greater than the maximum output torque of the electric machine but less than the gear train damage torque.
3. The electric working vehicle transmission structure according to claim 2, wherein: the torque limiter is a friction clutch, and a motor shaft is connected with an input shaft of the gear transmission mechanism through the friction clutch.
4. The electric working vehicle transmission structure according to claim 1, wherein: the gear transmission mechanism is a gearbox.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121911170.7U CN216002196U (en) | 2021-08-14 | 2021-08-14 | Electric engineering vehicle transmission structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121911170.7U CN216002196U (en) | 2021-08-14 | 2021-08-14 | Electric engineering vehicle transmission structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216002196U true CN216002196U (en) | 2022-03-11 |
Family
ID=80588846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121911170.7U Active CN216002196U (en) | 2021-08-14 | 2021-08-14 | Electric engineering vehicle transmission structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216002196U (en) |
-
2021
- 2021-08-14 CN CN202121911170.7U patent/CN216002196U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210000 No.2 Huxiao Road, Chunhua street, Jiangning District, Nanjing City, Jiangsu Province Patentee after: Nanjing Fuli Heavy Industry Co.,Ltd. Address before: 210000 No.2 Huxiao Road, Chunhua street, Jiangning District, Nanjing City, Jiangsu Province Patentee before: NANJING HAOLONG ELECTRONICS Co.,Ltd. |