Pure electric underground mine car power assembly
By using a traction motor to directly drive the reducer in a pure electric underground mining vehicle, the problems of low transmission efficiency and shift jerking are solved, achieving stepless speed regulation and high-efficiency transmission, adapting to the underground environment, and improving the system's reliability and environmental friendliness.
CN224348748UActive Publication Date: 2026-06-12FUJIAN HONGSHIDAI NEW ENERGY TECH CO LTD
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Patent Information
- Application Number
- CN202521688526.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-08
- Publication Date
- 2026-06-12
- Estimated Expiration
- 2035-08-08
AI Technical Summary
Technical Problem
Existing fuel-powered underground mining trucks have low transmission efficiency, require gear shifting, which causes jerking and the risk of gear slippage, and do not meet environmental protection requirements.
Method used
The scheme of directly driving the reducer with the traction motor achieves stepless speed regulation. The single-motor system simplifies motor control. The use of explosion-proof permanent magnet synchronous motor and water cooling system improves transmission efficiency and reliability.
Benefits of technology
It achieves stepless speed regulation, improves transmission efficiency, simplifies motor control, enhances system reliability and adaptability, is suitable for harsh downhole environments, and reduces noise and maintenance frequency.
✦ Generated by Eureka AI based on patent content.
Abstract
A pure electric underground mine car power assembly comprises a traction motor and a speed reducer, the traction motor is arranged above the speed reducer, and an output shaft of the traction motor faces downwards and is connected with an input shaft of the speed reducer through a spline. A first gear and a second gear are arranged on an input shaft of the speed reducer, a third gear and a first bevel gear are arranged on a transmission shaft of the speed reducer, a second bevel gear is arranged on an output shaft of the speed reducer, and the first gear is meshed with the third gear. The first bevel gear is meshed with the second bevel gear, the first bevel gear is meshed with the second bevel gear, the speed is further reduced, the torque is increased, the rotating direction is changed, and finally power is output through an output shaft of the speed reducer; the second gear is meshed with an oil pump gear and drives an oil pump after primary speed reduction, and oil pressure established by the oil pump lubricates and cools a speed reducer.
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