With the rapid development of science and technology in China, great changes have taken place in the construction technology of tunnels. "Mechanization, informatization and intelligence" has become the inevitable trend of future development. Combined with the application of multi-arm rock

A single-arm rock drilling jumbo rig is used to drill holes in Ganyue Road, Chongqing, and then the rock stratum is split by hydraulic fracturing machine, and then removed by excavator. Large-diameter drilling increases the drilling tool loss of single-arm rock drilling jumbo.

Brand : EPIROC
Part No. : 3128259218
Description : Seal Kit
Use in : Boltec 235 , Boltec 235h , Boltec Lc , Boltec Md , Boomer 353 , Boomer L2c , Boomer L2d , Boomer M1d , Boomer M2d , Boomer Xl3

The paper collects a total of 23 models of hydraulic rock drills from Sandvik, 14 models of which fall into H family and 9 models of which belongs to RD family. Main specifications of each models are listed. Models are made up of 3 parts, that is, prefix, number, and suffix.

For development of large equipment，such as drill jumbos，digitalization and intelligence are the trends in future. In order to clarify the research direction of the self-developed drill jumbo，combined with the current status of the drill jumbos applied in China's underground mine，where the drilling

As a new type of tunnel construction tool，the three-arm drilling rig is widely used in excavation，anchor construction and auxiliary operation of highway，railway tunnel，underground cavern excavation and other large section construction projects. This paper mainly combines the engineering practice

Through the analysis of the mechanism of small excavator and rock drill, the advantages and disadvantages of the two and their correlation degree are found.Adding various auxiliary tools on the excavator can not only expand the application scope of the excavator, but also adapt to

Brand : EPIROC
Part No. : 3128308372
Description : Spring
Use in : Simab H1252 , Simba H1254 , Simba H1354 , Simba L6c , Simba M4c , Simba M6c

The abnormality of high-temperature in the gear box was found while the model ZYYG170A hydraulic rock drill was used at a tunnel in Henan province. After analysis, technicians found the reason was the extremely small fit clearance between the bush and rotation chuck bushing. After the regulation

Because of the advantages of large diameter and high efficiency of drilling hole, the drilling machine is widely used in mining and construction. The essence of downhole drilling is that under the action of axial pressure, rock is broken by using two kinds of forces, impact and rotation. Finally