Mining multi-shaft dump truck

Abstract

The invention relates to a mining dump truck which is mainly suitable for large surface mining transportation. A running gear of the mining dump truck comprises a truck frame and a plurality of hydraulic suspensions; every two hydraulic suspensions form a shaft line; the running gear at least comprises two shaft lines; the truck frame is an intermediate box beam structure; wing beams are extendedfrom the two sides of the intermediate box beam; each hydraulic suspension comprises a rotary bearing, a rotary frame, a swinging arm, a suspension cylinder, an oscillating shaft and wheels; wherein the upper end of the rotary frame is arranged on the lower plane of each wing beam of the truck frame by the rotary bearing; the upper end of the rotary frame is movably connected with the swinging arm by pins; one end of the suspension cylinder is hinged at the lower part of the rotary frame; the other end of the suspension cylinder is hinged at the middle part of the swinging arm; the front end of the swinging arm is a cylindrical pin shaft; the oscillating shaft is sleeved on the cylindrical pin at the front end of the swinging arm; and the wheels are arranged at the two ends of the oscillating shaft. According to the mining dump truck, the safety of the mining dump truck is improved, the minimal turning radius of a vehicle is also reduced at the same time, the throughput capacity, the maneuverability and the off-road performance of the mining truck are improved, and the cost of use and maintenance is reduced.

Description

technical field [0001] The invention relates to a multi-axle mining dump truck, which is mainly suitable for mining and transportation in large-scale open-pit mines. Background technique [0002] Traditional large mining dump trucks are generally two-axle large super-high, super-wide and super-long dump trucks. This kind of heavy-duty vehicle usually has a short wheelbase and is driven by a rear axle, driven by mechanical or electric wheels. It has strong power and strong climbing ability , the transportation efficiency is high, and the speed is not high. Traditional mining dump trucks also have the following problems of safety, passability, production, and high cost of use and maintenance. [0003] 1) The vehicle is bulky, has a large loading capacity, a small number of tires, a large diameter, and a high center of gravity of the vehicle. However, the mine environment is harsh and the road conditions are complex, and accidents such as overturning and falling off cliffs ar...

AI Technical Summary

Problems solved by technology

[0003] 1) The vehicle is bulky, has a large loading capacity, a small number of tires, a large diameter, and a high center of gravity of the vehicle. However, the mine environment is harsh and the road conditions are complex, and accidents such as overturning and falling off cliffs are prone to occur; high

The loading and self-quality of mining dump trucks are large, but the number of wheels carried is small, and the load capacity of each wheel is large, which is very destructive to the road surface in mining areas.

3) The turning radius is large and the vehicle passability is poor

In order to increase the carrying capacity of the dump truck, it is necessary to widen or lengthen the vehicle, which greatly reduces the passability of the vehicle, especially the turning radius becomes larger and larger with the increase of the load, and the requirements for the transportation site become larger. come higher

4) The diameter of the tire is large, and the cost of using the tire is high

Traditional large mining dump trucks are equipped with giant tires, which not only need to be customized separately, but also are very inconvenient to transport, store and replace

At the same time, the self-rescue ability is poor, if one tire is damaged, the vehicle will have to stop working, and it will be transported to the workshop by other transport vehicles for maintenance, which is difficult to maintain and requires special equipment maintenance; 5) The axle load is large and the manufacturing cost is high

Larger axle loads require axles and reducers to have greater carrying capacity and output torque, which puts higher requirements on the design and manufacture of axles and reducers, and increases product costs

6) The rear axle drive is adopted. In order to improve the utilization coefficient of ground adhesion and enhance the driving force of the vehicle, the vehicle driven by the rear axle requires the load of the rear axle to be greater than 60%. The rear axle needs to be equipped with four large wheels. In order to prevent foreign objects from being clamped between the wheels, The distance between the two wheels needs to be relatively large. When the vehicle turns, the tires will slip seriously, the tires will wear unevenly, the rear axle tires will be damaged quickly, and the use cost will increase.

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