How to balance the advantages of two luffing mechanisms, satisfying equipment stability and mobility under complex working conditions while maintaining strong hard rock drilling capability? Shanghai Jintai's latest SD36 multi-functional drilling rig is a "flexible warrior".
The luffing mechanism is a key load-bearing component of a rotary drilling rig. The diversity of construction conditions determines the complexity of the loads on the luffing mechanism. Currently, the luffing mechanisms of mainstream rotary drilling rigs mainly adopt two types: "parallelogram" (also called 'four-bar linkage' mechanism) and "large triangle". These two structures are suitable for respective working conditions and each has advantages. It is generally believed that rotary drilling rigs with "parallelogram" luffing mechanisms are more convenient in disassembly, assembly, and transportation, and the overall flexibility is superior to the "large triangle" structure; correspondingly, due to differences in load-bearing structures, the stability of the "four-bar linkage" rotary drilling rig when drilling into hard rock is slightly inferior to that of the "large triangle" structure. How to balance the advantages of the two structures, satisfying equipment stability and mobility under complex working conditions while maintaining strong hard rock drilling capability? Shanghai Jintai's latest SD36 multi-functional drilling rig is a "flexible warrior".
The SD36 multi-functional drilling rig has the following technical features:
☑New generation rotary drilling dedicated chassis: engine power 299kW (Euro III standard); widened lower chassis, increased weight, lower center of gravity, ensuring body stability during rock drilling;
☑High-efficiency power head: multi-speed control, higher drilling efficiency; the power head slide frame adopts a long guide with three sets of wear-resistant structures on one side, ensuring drilling verticality; at the same time, it has a dual buffer system, effectively reducing the impact on the power head;
☑Main winch: adopts fast confluence technology, maximum speed up to 70m/min; at the same time, it has high and low speed configurations, effectively improving drilling rig efficiency;
☑Energy saving and consumption reduction: the hydraulic system adopts multi-pump series and parallel modes, as well as large-diameter, large-flow main valve configuration, rationally distributing power, maximizing the output power of the main valve, and reducing useless losses;
☑Strong slewing braking capacity, up to 50000Nm, more suitable for complex strata and large-diameter pile foundation construction;
☑Stacked standardized counterweight: adopts stacked counterweights, making the overall structure more compact; counterweight configuration can also be flexibly increased or decreased according to actual working conditions;
☑The design of the four-bar linkage structure and the cylinder hydraulic system has been comprehensively upgraded, and the mast raising capacity of the cylinder has been greatly improved.