Driving unit and multi-mode driving vehicle for mining low distributed support carrier

Abstract

The invention belongs to the technical field of underground coal mine transportation equipment, and relates to a driving unit and a multi-mode driving vehicle for a mining low distributed support carrier. The driving vehicle comprises a traction motor, a hub reduction gear and wheels, the hub reduction gear comprises a first-stage reduction mechanism, a second-stage reduction mechanism, a wet brake, a front bearing frame and a rear U-shaped frame, the front bearing frame and the rear U-shaped frame are connected to each other, the driving units are arranged at the two sides of the front bearing frame, and the driving units, a first electric control box and a second electric control box are arranged on the two sides of the rear U-shaped frame respectively. According to the driving system ofthe driving vehicle, six sets of traction motor and hub reduction gear distributed modes are adopted, multiple driving modes such as full six-wheel driving, two-wheel front driving and four-wheel rear driving are achieved through multi-motor coordination control, power output of the driving wheels is accurately adjusted according to actual working conditions, and the purposes of energy conservation and efficiency improvement are achieved. The invention provides an effective solution to the problem of difficult configuration of the carrying vehicle for the underground low-space operation of the coal mine.

Description

technical field [0001] The invention relates to a drive unit and a multi-mode drive vehicle for a mine-used low profile distributed support vehicle, which belong to the technical field of coal mine underground transportation equipment. Background technique [0002] For explosion-proof battery vehicles, the size of the explosion-proof battery capacity not only affects the production cost of the vehicle, but also affects the mileage of the explosion-proof battery vehicle. In the absence of a battery revolution and changes in related standards, in order to balance the contradiction between the two, improving the energy utilization rate of explosion-proof battery vehicles has become a technical path to solve this contradiction. There are two main ways to improve energy utilization: the first is to improve on the basis of the traditional single-motor single-reduction ratio drive structure: the main measures include optimizing vehicle parameter matching and control strategies, veh...

AI Technical Summary

Problems solved by technology

Therefore, centering on the two goals of vehicle energy saving and safety, the research conforms to the underground working conditions of coal mines, realizes various driving force output modes of vehicles, ensures that the motors work in the high-efficiency range for a long time, improves the energy utilization rate of vehicles and is suitable for various working conditions of mines. Applicability, to solve the problem that current mining electric drive vehicles cannot efficiently meet the needs of complex and changing working conditions in coal mines

[0004] The existing Chinese patent application with publication number CN 111890905 A discloses a low-profile double-motor-driven frame-type support truck. Its drive system adopts technologies such as centralized motor drive and electric bridge drive. The integrated design of the wheel reducer, differential, etc. is an integrated drive axle. Its structure is complex, the transmission chain is long, and the size is large, which brings great difficulties to the vehicle layout, especially the difficulty of vehicle height control, which cannot be effectively solved. Traffic problems in thin coal seams and low roadways; at the same time, its control is relatively complicated, and it is necessary to comprehensively consider motor control, shifting rules, and smoothness of shifting. Once a fault occurs during use, it is difficult to troubleshoot and repair, and the overall replacement Accessories will bring a certain economic burden to users

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