Prototype Roadheader Cutting Head

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Prototype Roadheader Cutting Head

MR341/MR361 ROADHEADERS

MR361 roadheader is an electro-hydraulic, part- face cutting machine designed for roadway development and for ore/mineral production in saline underground

[PDF] Vibration identification of the roadheader cutting head …

Vibrations of the roadheader cutting head were measured by means of two methods during the cutting performed on the test set-up created at the Faculty of Mining and Geology at the Silesian University of Technology. The first of them included installing accelerometers on the roadheader boom near the cutting heads. In the second one, a …

Roadheaders Selection Guide: Types, Features, Applications

Type of roadheader drum, or cutting head style. This is very important since cutting into coal seams underground is far different than cutting into granite above ground, This is the actual tool the rest of the machine is made to use.

Prediction method of cutting stability of roadheader based …

To verify the correctness of the improved hybrid discrete prediction method, the experimental prototype of the roadheader cutting head and the coal-rock cutting are established on the basis of the similarity criterion. The servo-electric cylinder and variable frequency motor are used by PLC to complete the swing cutting of the cutting head …

A Case Study of Cutting Performance by a Transverse Cutting Head …

Roadheaders have been increasingly used in a variety of tunnel cross-sections and roadway excavations. The appropriate setting of key construction parameters of the roadheader can maintain the excellent cutting performance of the roadheader during excavation. In this respect, this paper reviews in detail the previous studies on …

MR341 Roadheader Part-face Cutting Machine

MR341 roadheader is a part-face cutting machine built for roadway development in coal mining. It comes with a variety of options and features, such as integrated swivel chain conveyors and high tramming speeds. This roadheader has a powerful transversal cutter head and can cut rock with a compressive strength of up to 80 MPa (UCS).

prototype roadheader cutting head

The cutter Experience with the prototype After a period of about one year, the machine was designed and built and ready to be tested in the workshop in Austria. ... The main design parameters of roadheader cutting head include tooth top envelope surface, helix number and helix lift angle, circumferential angle, maximum cutting thickness ...

Adaptive Cutting Control for Roadheaders Based on …

Abstract: Aiming at addressing the problems of high specific energy consumption for cutting and slow response to the change of hardness in the control of …

Effects of circumferential pick spacing on boom type roadheader cutting …

The effects of line spacing on roadheader cutting head performance have been studied systematically and well documented (Evans, 1972, Roxborough, 1973, Hurt and MacAndrew, 1981, Hurt et al., 1982, Hurt and MacAndrew, 1985). Any failure in providing equal line spacing triggers disproportional pick forces and consequently high …

Nonlinear dynamic analysis of cutting head-rotor-bearing …

However, when the speed is too high, the cutting torque of system becomes smaller. In the case of cutting hard rock, reasonable rotational speed should be chosen between improving stability and increasing cutting force. The dynamic analysis results provide strong support for the vibration reduction and dynamic design of roadheader.

Computer-aided efficient design and performance …

Computer-aided efficient design and performance optimization of cutting head for roadheader Xin Jin, Guochao Zhao, Lijuan Zhao, Guocong Lin Abstract: The cutting head is the core working mechanism of the roadheader for coal-rock materials cutting.

Vibration identification of the roadheader cutting head …

Vibrations of the roadheader cutting head were measured by means of two methods during the cutting performed on the test set-up created at the Faculty of Mining and Geology at the Silesian ...

MT521 ROADHEADER

cutter head mounted on an extremely robust and stabilized telpic cutter boom. ... Cutronic® enables semi-automated cutting and assists roadheader operation for rookies in mechanical rock excavation Various digitalization options optimize machine application (tele-remote operation, fleet data as well as ...

Computer-aided efficient design and performance optimization of cutting

The cutting head is the core working mechanism of the roadheader for coal-rock materials cutting. The efficient and high performance design of cutting head is the key to improve the road head ...

Computer-aided Efficient Design and Performance Optimization of Cutting

The cutting head is the core working mechanism of the roadheader for coal-rock materials cutting. The efficient and high performance design of cutting head is the key to improve the road head ...

Roadheader – A comprehensive review

The roadheader is a hybrid mechanical excavator and consists of a boom-mounted rotating cutting head with a conveyor for broken rocks Fig. 1. A crawler travelling track moves the entire machine forward into the rock face.

Computer-aided efficient design and performance optimization of cutting

The cutting head is the core working mechanism of the roadheader for coal-rock materials cutting. The efficient and high performance design of cutting head is the key to improve the road head digging and mining technology. In this paper, based on cutting head design theory and virtual prototype technology, we propose a computer-aided structure design …

ROADHEADERS PERFORMANCE OPTIMIZATION

The combination of bit allocation algorithm, the vibration simulation, and the performance monitoring in one program provides an ultimate optimization tool for cutting head …

MR300 SERIES ROADHEADER

MR300 SERIES roadheaders are extremely powerful rock-cutting machines designed to excavate roadways, tunnels and chambers continuously without using

A New Computer Program for Cutting Head Design of

At the early twenty-first century, Tiryaki et al. 29 develop a new software for the design of cutting head for roadheader, which takes into account the equation of …

MT521 ROADHEADER

KEY FEATURES AND BENEFITS. Improved safety features ensure safe underground working conditions and less operational hazards. Heavy duty, robust machine design, …

Computer-aided Ecient Design and Performance …

Computer-aided efficient design and performance optimization of cutting head for roadheader Xin Jin, Guochao Zhao, Lijuan Zhao, Guocong Lin School of Mechanical Engineering, Liaoning Technical University, Fuxin 123000, China. Corresponding author: Xin Jin, tel numbers:, e-mail address:jx032615@163 Abstract: The …

Roadheaders – Mine and Tunnel Constructions

Roadheader Machines for Hire Roadheader Machines Model: AM75-MOB027 ALPINE AM75 ROADHEADER FULL SPECIFICATIONS GET QUOTE Overall Height (at Canopy): Overall Length: Width of Crawler Assy: Total Weight: Width of Loader Head: Max position of loader head - Above Track Level ... Cutting Height: – Loader Head in Lowest Position: …

Contour recognition of roadheader cutting head based on …

In this paper, a shape matching algorithm is presented to perform the cutting head recognition for roadheaders based on a binocular vision system installed on the machine. The shape descriptor is a simplified intersection angle of tangent lines which is firstly proposed on the basis of contour points' spatial positions. It exhibits significant self …

Computer-aided efficient design and performance optimization of cutting

A computer-aided structure design and performance optimization method for cutting head that can realize the fast and efficient design of cutting head, and the designed cutting head has good working performance. The cutting head is the core working mechanism of the roadheader for coal-rock materials cutting.