The hottest Zoomlion zr420 rotary drilling rig won

Zoomlion zr420 rotary drilling rig won the Top50 annual product award

Zoomlion zr420 rotary drilling rig won the Top50 annual product award

China Construction machinery information

Guide: on March 29, 2013 construction machinery product development (Beijing) forum and China construction machinery annual product Top50 award ceremony were grandly held in Beijing. As the annual grand meeting of the construction machinery industry, Top50 selection aims to sort out and summarize the achievements of the construction machinery industry in technology and products in the past year, remember

on March 29, the 2013 construction machinery product development (Beijing) forum and the Top50 award ceremony of China's annual construction machinery products were grandly held in Beijing. As an annual event of the construction machinery industry, the Top50 selection is intended to sort out and summarize the achievements of the construction machinery ◎ experimental equipment host: WDW electronic universal testing machine industry in technology and production to enable enterprises to compete fairly in the market and eliminate the superior and the inferior, record the footprints of industrial technological progress, and guide the construction machinery products and technology to advance 3 The measuring principle of the tension machine is the direction of the step. The target of the selection is the products in China's construction machinery market (including the products of foreign-funded and domestic enterprises), and the core standard of the selection is the technological innovation, market performance and application contribution of the products

Zoomlion zr420 rotary drilling rig won the Top50 (2013) annual product award of China Construction machinery

product details:

the luffing system adopts an improved double big triangle structure, and improves the support point of the mast oil cylinder, ensuring the integrity when entering the rock and reducing the stability and reliability of the testing error machine

under difficult drilling conditions, the three turn reducer configuration can effectively enhance the braking effect, cooperate with the rear outrigger oil cylinder to effectively inhibit the lifting of the front end of the lower body, and further improve the stability of the whole machine, so as to ensure the verticality of the drilling hole and effectively avoid the drill pipe fracture accident

the main winch adopts a new encoder counting scheme to measure the hole depth more accurately; The new boss and climbing platform design of the drum makes the steel wire ropes more neatly arranged, so as to prolong the service life; The independent oil replenishment function is added to prevent the occurrence of rod sliding accidents

add shock absorber to realize the flexible lowering of drill pipe in the whole process, prevent the occurrence of vicious accidents such as damage of power head caused by impact fatigue, and adjust the distance between drill pipe and mast, which can provide higher stability for the whole machine

technological innovation:

the joint construction process with full casing, DTH hammer, impact hammer and other equipment is introduced for the first time in the industry, which greatly improves the expansion capacity of equipment and saves costs for customers; According to the drilling requirements of ultra deep and ultra large aperture, the optimization is as follows: optimize the layout of the whole machine and the luffing mechanism, flexibly adjust the working radius, and meet the construction stability requirements of all terrain; The whole power system is matched, especially the constant power control of the hydraulic system is optimized, and the effect of pulse pressurization is added in conjunction with the electrical transformation; Optimize the strength and hardness of drill pipe under super torque to prolong its service life; This paper puts forward a detailed solution to the problems of easy damage and short service life of drilling tool teeth under extreme geological conditions