underground dump truck

Abstract

The present invention provides an underground dump truck, comprising: a main frame, which includes crossbeams and longitudinal beams, the crossbeams and longitudinal beams are vertically staggered, and the section of the longitudinal beams is grooved; a power system, which is connected to the on the main frame; the steering system, which is connected to the left front outer side of the main frame; the suspension system, which is connected to the bottom of the main frame; the braking system, which is connected to the inner side of the main frame and the outside; the lifting system, which is connected to the main frame beam and the bottom plate of the cargo box through the oil cylinder support; the cab assembly, which is connected to the front side of the main frame through a bracket, and the driver The chamber assembly is a long head offset split type; the cargo box assembly is connected to the beam of the main frame through a pin shaft. The invention is a new type of underground transportation equipment. The technical index of the whole vehicle is determined according to the market demand, and the overall layout design is completed according to the index. The core is to solve the vehicle ground system in the underground non-highway state.

Description

technical field [0001] The invention relates to the field of mining machinery, in particular to a safe and reliable underground dump truck capable of exerting high transportation efficiency under the working condition of underground trackless mining. Background technique [0002] At present, for the specific market of underground mining and transportation of non-ferrous metal mines such as iron ore, gold ore and copper ore in China, the construction site is relatively closed, the construction period is long, the transportation materials are relatively stable, and the transportation vehicles are heavy in use, heavy in load and updated in products. quick. Underground mining vehicles in the engineering category are more suitable, but due to their high purchase and operating costs, project contractors purchase a small amount for qualification certification for bidding needs, and the actual use is seldom. Due to its highway regulations and market positioning, traditional enginee...

AI Technical Summary

Problems solved by technology

[0003] 1. Traditional engineering refitting vehicles, because of market positioning and road regulations, are not designed according to actual working conditions at all, and at most only partial improvements are made. Therefore, the overall dimensions of the vehicle layout design are not suitable for working in small underground spaces.

[0004] 2. Traditional engineering modified vehicles, due to their small load capacity and low operating efficiency of single vehicles

As a result, under the same mining transportation demand, more transportation vehicles are needed, which can easily lead to blockage of underground transportation channels and paralysis of operations

[0005] 3. Traditional engineering modified vehicles, because the cab is a sheet metal stamping welded part, its own rigidity and strength not only cannot meet the underground transportation conditions, but also the results of impact resistance and collision resistance cannot meet the driver's safety guarantee at all.

[0006] 4. For traditional engineering modified vehicles, since the materials and structure of the frame are adopted and designed according to the road conditions, the performance of the material and the rigidity and strength of the frame cannot meet the loading impact of the underground scraper and the unevenness of the underground road. The bumps cause the frame to break and crack, and the whole vehicle is scrapped

[0007] 5. Traditional engineering modified vehicles, due to their own market positioning and performance matching requirements, the strength and stiffness of their cargo boxes cannot meet the requirements of underground transportation media, making the cargo boxes easy to deform and crack, making the vehicles easy to scatter on the ground during transportation On the underground transportation road, affecting the normal operation and safety guarantee of the underground

[0008] 6. Traditional engineering refitting vehicles, whose electronic and electrical systems are matched with road vehicles, have low light brightness, poor fog penetration, and no explosion-proof and moisture-proof performance, which seriously affects the reliability and safety of vehicles in dark underground environments. safety

[0009] 7. For traditional engineering modified vehicles, the lifting working mechanism is a front lifting device. This layout design increases the length of the vehicle. At the same time, the hydraulic oil tank is installed next to the front lifting cylinder, which in turn increases the length of the vehicle and affects the Flexibility of the vehicle for underground operations

[0010] 8. The emission standards of traditional engineering modified vehicles are designed according to the standards of road vehicles. The emissions of vehicles in the ground far exceed the underground emission safety standards, resulting in poor air quality and affecting operational safety.

[0011] 9. The traditional engineering refitted vehicle, its axle is a road vehicle with a main subtractive axle, and the brakes are installed on the sides of the wheels, which are drum brakes. In the underground water environment, water can easily enter the brakes, resulting in Short-term dynamic failure, and the drum brake is prone to heat and long-term braking is prone to sparks, which affects the safety of braking.

[0012] 10. For traditional engineering modified vehicles, the braking system is the dual-circuit air pressure braking system commonly used in road vehicles. In the humid underground environment, water is easy to enter the system, causing valve failure and affecting braking safety.

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