Poducts

  • Roadheader – A comprehensive review ScienceDirect

    01/01/2020· The performance of shipping sectors is also determined by the shovel board parameters of roadheader. Burkov et al. (2014) focused on the advantages of the roadheader feeder, and the importance of designing the crank and rod mechanism of the roadheader. Another issue that had to be resolved was dust generated during operations. Barham and Buchanan (1987) suggested a roadheader

  • Cited by: 2
  • Stability Analysis of Roadheaders

    Fig. 1: Machine design parameters and boom reaction forces of a transverse type roadheader. As seen from the Fig. 1, The parameters used, which affect the machine stability, are; W, machine weight; e, machine width; p, the width of each track; u, the length of the boom; m, the distance between the start of the boom and the center of gravity; a, the distance between the back leg of the machine

  • Study on Roadheader Cutting Load at Different

    There are various factors influencing the performance of roadheader in mechanized drivage operation, which mainly include the physical and mechanical properties of coal and rock and the structural parameters itself. As the direct working mechanism of roadheader, cutting head works in poor working conditions. The cutting picks wear and fracture and the fall-off of tool bit usually occur during

  • Cited by: 8
  • Design Parameters Optimization of Cutting Head of

    Optimization design of cutting pick arrangement parameters of roadheader based on Minimum load fluctuations, 2005. in Chinese. [2] Xin Zhang, Qing-liang Zeng. Research on multi-objective optimization design of the cutting pick of roadheader. Coal mining machinery, 2005. in Chinese. [3] Ortner, Peter. Developments in surface and underground mining equipment at Voest Alpine Bergtechnik Gdes. m

  • Author: Gang Liu, De Sen Mu, Shi Xi Duan, De Chao Song
  • Roadheaders CoalMachGroup

    Roadheader EBZ-45 is used for mining of coal mixed with the slaughter of economically viable rock fortress no more than ≤ 40. The combine has a compact design with a low center of gravity, easy to manage, has a manual override in the destruction of rocks. Main parameters. Dimensions (m) 7.4x1.8x1.3: Weight (t) 14: Max. Cutting Height (m) 3.2: Max. Cutting Width (m) 4: Ground Clearance

  • Research on Measuring and Controlling of Pose and

    A measurement method for the pose and position parameters of a roadheader is presented in this paper. The coordinates relationship between tunnel benchmark and roadheader body is established. Discrete model of intelligent walking of roadheaders is constructed. This paper also presents that the first condition of profiling cut for a roadheader is precise control of the parameters,meaning

  • Cited by: 1
  • (PDF) Influence of Constructional and Kinematic

    Influence of Constructional and Kinematic Parameters of the New Solution of Roadheader Mining Head on the Effectiveness of its Work . September 2018; Multidisciplinary Aspects of Production

  • Multifactor Analysis of Roadheader’s Body Pose

    Among the pose parameters, floor-based quantity and pitch angle of the body vary relatively greatly, which tend to seriously influence forming quality of the roadway and should be mainly considered in deviation rectification of the roadheader’s body pose.

  • A new method to evaluate roadheader operational

    Cutting depth and spacing are two important parameters for the efficiency of a roadheader in mining operation. In this study, the case of a roadheader excavating a coal gallery is taken into

  • Design Parameters Optimization of Cutting Head of

    Optimization design of cutting pick arrangement parameters of roadheader based on Minimum load fluctuations, 2005. in Chinese. [2] Xin Zhang, Qing-liang Zeng. Research on multi-objective optimization design of the cutting pick of roadheader. Coal mining machinery, 2005. in Chinese. [3] Ortner, Peter. Developments in surface and underground mining equipment at Voest Alpine Bergtechnik Gdes. m

  • Roadheaders CoalMachGroup

    Roadheader EBZ-45 is used for mining of coal mixed with the slaughter of economically viable rock fortress no more than ≤ 40. The combine has a compact design with a low center of gravity, easy to manage, has a manual override in the destruction of rocks. Main parameters. Dimensions (m) 7.4x1.8x1.3: Weight (t) 14: Max. Cutting Height (m) 3.2: Max. Cutting Width (m) 4: Ground Clearance

  • Research on Measuring and Controlling of Pose and

    A measurement method for the pose and position parameters of a roadheader is presented in this paper. The coordinates relationship between tunnel benchmark and roadheader body is established. Discrete model of intelligent walking of roadheaders is constructed. This paper also presents that the first condition of profiling cut for a roadheader is precise control of the parameters,meaning

  • Intelligent design and simulation of roadheader cutting head

    parameters of the cutting head of roadheader input directly in the interface of the system, and anti-call input the related parameters of cutting head in the ANSYS system, easy to operate. Fig.2 Schematic diagram of cutting pick and holder 3) Parametric modeling for cutting picks and pick holder As shown in Figure 2, according to the size of the pick and pick holder, enter the relevant design

  • Roadheader EBZ-100A CoalMachGroup

    Roadheader is widely used for drilling in different directions for tunneling faces the soft coal and mixed faces, for penetration of softwood. Also, it is used for laying railway tracks and roads, as well as for the installation of water reservoirs. Removable cross-sectional area from one position 24 m ², a longitudinal tilt angle ± 18º. The optimum height for the job 2.5-4.0 m. Main

  • (PDF) Performance of a roadheader under harsh working

    The factors affecting the performance of 90 kW-shielded roadheader is investigated in detail in a tunnel excavated for Nuh Cement Factory. The first part of the tunnel is horizontal and the second

  • Development of Position System of a Roadheader on a Base

    parameter is the verification of authenticity and integrity of transmitted data packets. Since the distortion of the . 620 Markvardt Roman et al. / Procedia Engineering 100 ( 2015 ) 617 – 621 transmitted information can occur emergencies. [6] System that provides linear motion of the roadheader with various obstacles that arise when moving the of the roadheader is the most difficult from a

  • ROADHEADERS PERFORMANCE OPTIMIZATION

    Roadheader performance and related parameters are reviewed and their effects on the production and advance rate are discussed. Among the parameters influencing the machine performance, the most important one is the cutterhead design which could be optimized for a specific application. The procedures and the approach used in design optimization is reviewed. A computer program which has

  • Parameter Optimization Design of Hard Rock Roadheader

    In order to choice reasonably cutting head parameters for a hard-rock roadheader, to improve its cutting performance, to make better the economy of cutting, taking a rotating speed, a horizontal swing speed, an average diameter and a length of a cutting head as design variables in the paper, objective functions and a optimization model including productivity,...

  • Research on Measuring and Controlling of Pose and

    A measurement method for the pose and position parameters of a roadheader is presented in this paper. The coordinates relationship between tunnel benchmark and roadheader body is established. Discrete model of intelligent walking of roadheaders is constructed. This paper also presents that the first condition of profiling cut for a roadheader is precise control of the parameters,meaning

  • Multifactor Analysis of Roadheader’s Body Pose

    Among the pose parameters, floor-based quantity and pitch angle of the body vary relatively greatly, which tend to seriously influence forming quality of the roadway and should be mainly considered in deviation rectification of the roadheader’s body pose.

  • Roadheader EBZ-100A CoalMachGroup

    Roadheader is widely used for drilling in different directions for tunneling faces the soft coal and mixed faces, for penetration of softwood. Also, it is used for laying railway tracks and roads, as well as for the installation of water reservoirs. Removable cross-sectional area from one position 24 m ², a longitudinal tilt angle ± 18º. The optimum height for the job 2.5-4.0 m. Main

  • Roadheader EBZ-55 CoalMachGroup

    Roadheader has a configuration corresponding to a high international level, internal and external control systems with dust. Gearbox and hydraulic suspension combine integrated and highly integrated. The middle part of the transport system has a joint and a large dump height. The combine has an LCD display with a demonstration of the functions in the dynamics, easy to manage and maintain

  • Segmentation algorithm of roadheader vibration signal

    segmentation algorithm of roadheader vibration signal based on the stable distribution parameters.egmentation algorithm of roadheader vibration signal based on the stable distribution parameters. jacek wodecki, pawel stefaniak, agnieszka wylomanska, radoslaw 6. issn 2345-0533

  • Geotechnical Risk Assessment and Selection of Suitable

    parameters of selected roadheader with common manufactured roadheader. 1 University of Technology Sydney, NSW, Australia, Email: [email protected], Tel: +61 468 879 080, 2 Department of Mining Engineering, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran, 2016 Coal Operators’ Conference The University of Wollongong 10 –12 February

  • Development of Position System of a Roadheader on a Base

    parameter is the verification of authenticity and integrity of transmitted data packets. Since the distortion of the . 620 Markvardt Roman et al. / Procedia Engineering 100 ( 2015 ) 617 – 621 transmitted information can occur emergencies. [6] System that provides linear motion of the roadheader with various obstacles that arise when moving the of the roadheader is the most difficult from a

  • Multi Variable Multi Objective Optimization for the

    Roadheader cutting head design parameters include rotational speed, yawing speed, cutting line spacing and teeth numbers on each cutting line. They all have an important effect on the performance of roadheader, which is mainly includes producing dust quantity, cutting specific energy, production efficiency and load fluctuations. Based on the cutting performance analysis of a single cutting