Intermediate and rear axle suspension system for mining dump truck
A mining dump truck and suspension system technology, applied in the direction of interconnection system, suspension, vehicle components, etc., can solve the problems of rigid impact, poor comfort, and high failure rate, achieve the linearity of the cylinder buffer curve, and avoid excessive useless strokes , to avoid the effect of rigid collision
Pending Publication Date: 2019-04-19
XUZHOU XCMG MINING MACHINERY CO LTD
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Problems solved by technology
Most of the 6×4 mining dump trucks currently operating in my country’s mining areas use leaf springs for the suspension of the middle and rear axles. Due to the limitation of the bearing capacity of the leaf springs, the tonnage is generally low, about 60 tons, and the weight is heavy and the comfort is poor. high failure rate
A small number of medium and rear axle suspensions use balanced oil-air suspension, which can carry a large tonnage, but most of them use a single-chamber accumulator structure, resulting in rigid impacts often occurring in chambers that are not connected to accumulators or inflated, greatly reducing system reliability
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[0016] The present invention will be further described below in conjunction with accompanying drawing.
[0017] Such as figure 1 and figure 2 As shown, the middle and rear axle suspension system of the mine dump truck includes the middle axle suspension cylinder 1, the large cavity connector 2, the large cavity accumulator 3, the rear axle suspension cylinder 4, the ring cavity connector 5 and the ring cavity accumulator 6 . One end of the middle axle suspension oil cylinder 1 and the rear axle suspension oil cylinder 4 are connected with the vehicle axle, and the other end is connected with the vehicle frame. The large chamber of the mid-axle suspension oil cylinder 1 and the 4 large chambers of the rear axle suspension oil cylinder are interconnected respectively through the large-chamber connector 2 and the large-chamber accumulator 3, and the ring chamber of the mid-axle suspension oil cylinder 1 and the 4 ring chambers of the rear axle suspension oil cylinder are respe...
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The invention discloses an intermediate and rear suspension system for a mining dump truck. The intermediate and rear axle suspension system comprises an intermediate axle suspension oil cylinder, large cavity connectors, a large cavity energy storage device, a rear axle suspension oil cylinder, circular cavity connectors and an circular cavity energy storage device, one end of the intermediate axle suspension oil cylinder and one end of the rear axle suspension oil cylinder are connected with an axle, the other end of the intermediate axle suspension oil cylinder and the other end of the rearaxle suspension oil cylinder are connected with a frame, a large intermediate axle suspension oil cylinder cavity and a large rear axle suspension oil cylinder cavity are communicated to the large cavity energy storage device through the large cavity connectors, and a circular intermediate axle suspension oil cylinder cavity and a circular rear axle suspension oil cylinder cavity are communicatedto the circular cavity energy storage device through the circular cavity connectors. The suspension system has the advantages that under the same inflatable volume, excessive useless journeys are avoided, back-pressure air chamber buffering of the large suspension oil cylinder cavities and the circular cavities is achieved, rigid collision is avoided, and reliability and comfort of a driver are improved.
Description
technical field [0001] The patent of the invention relates to a rear axle suspension system of a mining dump truck, which is suitable for 6×4, 8×4 and other rear double-axle mining dump trucks, and belongs to the technical field of mining vehicles. Background technique [0002] Mining dump trucks have the characteristics of large carrying capacity, short transportation distance and high transportation efficiency. Because it often operates in mining areas or engineering construction sites, the road conditions are poor and the overload is serious. Most of the 6×4 mining dump trucks currently operating in my country’s mining areas use leaf springs for the suspension of the middle and rear axles. Due to the limitation of the bearing capacity of the leaf springs, the tonnage is generally low, about 60 tons, and the weight is heavy and the comfort is poor. The failure rate is high. A small number of medium and rear axle suspensions use balanced oil-air suspension, which can carry...
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IPC IPC(8): B60G21/067
CPCB60G21/067
Inventor 王延袁自成朱孝朱新波姚锡江高新功娄彬冯汉队
Owner XUZHOU XCMG MINING MACHINERY CO LTD