drilling jumbo

In China's railway tunnel construction,the drilling-blasting method dominates with an application rate exceeding 70% and is gradually developing towards fullprocess mechanized operation. Drilling jumbos are the key equipment in mechanized drilling-blasting construction, and their configuration

To address issues such as the inability of humans to install long anchors in weak surrounding rock tunnels and the high cost of specialized foreign equipment, a technical method for installing self-advancing long anchors using a drilling jumbo is proposed, taking the soft rock large deformation

Taking the ZYS113 fully computerized three-arm drilling jumbo produced by China Railway Construction Heavy Industry Corporation Limited as an example, this paper provides an overview of the electrical system of the ZYS113 fully computerized three-arm drilling jumbo. It analyzes common electrical

This paper briefly introduces the structural form of wing arm seat and pin shaft connection form of three arm rock drilling jumbo. This paper introduces a new technological method of pulling out the pin shaft of wing arm seat of three arm rock drilling jumbo, Especially, it is more suitable

As for the full⁃face construction of small⁃section tunnels in surrounding rocks of grade IV, increasing the advance length, controlling the over⁃and under break of surrounding rocks and reducing the disturbance to surrounding rock are always the important technical problems during construction

The rock drilling jumbo has the characteristics of superior performance, compact structure, small size, fast rock drilling speed, high efficiency, good working environment and low pollution. This article introduces in detail the problems encountered during the use of Boomer S1D, and formulates

The arm is the key working part of the drilling machine, and the reasonable structure of the arm has a great influence on the performance, cost and performance of the car. In this paper, the key technical parameters of the main boom of the drilling jumbo are compared, and combined with

The medium-length hole drilling equipment used in the original mining operation of a mine is aging seriously.With the increasing of the section height,he hole depth is improved accordingly.In order to meet the demand of the construction of deep-hole drilling in mining,Simba M4C drilling jumbo

By processing a trouble of motor contactor burnout frequently in drilling-jumbo water pump, introduce the effect of water way system by water-hammer, and analyze how to avoid

The drilling jumbo is an important equipment for mining mechanization, the working performance of the drilling arm hydraulic system directly affects the operation efficiency of the drilling jumbo. After testing for the performance of the drilling arm hydraulic system, the impact, rotation

During the last decade,DTH impactors(also called DTH hammers) have grown by leaps and bounds and a lot of specialized manufacturing enterprises with tremendous strength have sprung up.Their products have been popular in the country due to their supreme quality.The paper compiles

during the last decade, DTH impactors (also called DTH hammers) have grown by leaps and bounds and a lot of specialized manufacturing enterprises with tremendous strength have sprung up. Their products have been popular in the Country duo to their supreme quality. The paper compiles the relevant

The structure of a stepwise pressurization device for a full-hydraulic rock drill rig is introduced first,and then the pressure setting method of the device is systematically described. The hydraulic rock drilling rig equipped with the step-by-step pressurizing device can quickly and accurately

In Chambishi Copper Mine in Zambia, large scale trackless equipments are used and the section size of roadway and stope is large. In order to exert the advantage of high efficiency of the large scale trackless equipments, increasement of advance per attack of roadway drivage is required.

Due to the disadvantages of relative backwardness of original mining equipments，high labor intensity of workers，poor quality of air around，low tunneling efficiency and low safety in a mine，the efficient and intelligent trackless mining equipments such as the new type hydraulic drilling jumbo and

This text introduced the basic requestion of the hydraulic oil of drilling jumbo, and introduced the selection of hy¬draulic oil. Also, this text analyzed the contaminative approach of hydraulic oil, and advanced the measure of the prevent Hydraulic oil pollution.