How to take into account the advantages of the two luffing mechanisms, not only can meet the stability and mobility of the equipment under complex conditions, but also maintain the strong hard rock drilling capability. Shanghai Jintai's newly launched SD36 multi-function drilling rig is a member. "Flexible."
2017.1
Construction case of Shanghai-Nanjing high-speed elevated overpass bridge project
The luffing mechanism is the key load-bearing component of the rotary drilling rig. The diversity of the construction conditions of the rotary drilling rig determines the complexity of the luffing mechanism. At present, the variable amplitude mechanism of the mainstream brand rotary drilling rig mainly adopts two types of "parallelogram" (also called "four-bar linkage" mechanism) and "large triangle type", and the two structures are respectively applicable to the corresponding working conditions. Each has its own advantages. It is generally believed that the rotary drilling rig adopting the "parallelogram" luffing mechanism is more convenient in disassembly and transportation, and the flexibility of the whole machine is better than that of the "large triangle" structure; correspondingly, due to the difference of the bearing structure, the "four links" When the mechanism was dug into hard rock, the stability of the whole machine was slightly inferior to that of the "big triangle" structure.
How to balance the advantages of the two structures, not only can meet the stability and mobility of the equipment under complex conditions, but also maintain the strong hard rock drilling ability. Shanghai Jintai's newly launched SD36 multi-function drilling rig can be described as a member of the "flexible" The trick will be."
The SD36 multi-function drilling rig has the following technical features:
A new generation of special chassis for rotary excavation: engine power is 299kw (Euro III standard); the lower chassis is widened, the weight is increased, and the center of gravity is lower, ensuring the stability of the fuselage when entering the rock;
High-efficiency power head: multi-speed control of speed, higher drilling efficiency; power head carriage adopts long-oriented three-side wear-resisting structure to ensure the verticality of drilling; meanwhile, it has double buffer system, which effectively reduces the power head. Impact
Main winch: adopts fast merging technology, the maximum speed reaches 70m/min; at the same time, it has high and low speed configuration, which effectively improves the efficiency of the rig;
Energy saving and consumption reduction: The hydraulic system adopts multi-pump series and parallel mode, as well as the main valve configuration of large diameter and large flow, reasonable power distribution, maximizing the output power of the main valve and reducing useless loss;
The rotary braking capability is powerful, up to 50000Nm, and is more suitable for complex stratum and large-diameter pile foundation construction;
Superimposed standard weight: using superimposed counterweight, the whole structure is more compact; it can also flexibly increase or decrease the weight configuration according to actual working conditions;
The design of the four-link structure and the hydraulic system of the cylinder has been comprehensively upgraded, and the capacity of the oil tank to lift the tower has been greatly improved.
2017.1
Lanzhou Central Business District Construction Case
(This article is from Shanghai Jintai)
Car Wireless Charger,Car Phone Holder,Car Phone Holder Mount,Wireless Car Charger
Shenzhen High Railway Technology Co., Ltd , https://www.hrw-tech.com