rock breaking machine

rock breaking machine

(PDF) Rock breaking methods to replace blasting

2021-8-2  Hydraulic splitting machine rock breaking process: According to the rock hardness, free surface, rock br eaking degree and the requirements of the direction of

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A Novel Concept for a Rock-Breaking Machine. II ...

the rock could be extracted satisfactorily, and in geometries of low confinement, this could be accomplished with high efficiency. In concrete-breaking, no problems were encountered in breaking the concrete itself but, if present in a three-dimensional array, the reinforcing bars could cause trouble. Tests with the largest machine confirmed its

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Rock-breaking implement for percussive machines ...

The rock-breaking implement of the self-propelled percussive machine for driving boreholes, shown in FIGS. 6 through 9, functions in the following manner. Upon receiving an impact impulse from the hammer piston 2 (FIG. 1) of the machine, the rock-breaking implement 4 penetrates, with its wedges 14 (FIG. 6), the face rock to break it.

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Simulation of Rock-Breaking Process by Drilling Machine ...

2021-10-21  Rock drilling machine is an indispensable device in the excavation of tunnels by drilling and blasting method. The drill bit of drilling machine penetrates the rock body at a high speed and applies an impact load on it, increasing the range of broken rock body below the

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Rock breaking machine - DOBSON PARK INDUSTRIES

Rock breaking machine - DOBSON PARK INDUSTRIES LIMITED. Title: Rock breaking machine. United States Patent 3889762. Abstract: A device for mounting a rock breaking or like impact tool on, for example the jib of an earth working machine, comprises a cradle having means whereby it may be attached to such a jib, a carriage for the tool, means ...

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Hydraulic Breaker Owner s Manual - Rock Breakers Inc.

2014-6-24  Breaking Oversize When breaking oversize material, the breaker is expected to break the material down quickly into multiple pieces. This is optimum production. If the operator has to re-position the breaker towards the edge of the rock and gradually

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Manufacturers, Suppliers, Exporters Importers from the ...

Manufacturers, Suppliers, Exporters Importers from the ...

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US3889762A - Rock breaking machine - Google Patents

A device for mounting a rock breaking or like impact tool on, for example the jib of an earth working machine, comprises a cradle having means whereby it may be attached to such a jib, a carriage for the tool, means supporting said carriage in the cradle and arranged to permit a limited degree of oscillation or reciprocation of the carriage in the direction of oscillation or reciprocation of ...

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Simulation of Rock-Breaking Process by Drilling Machine ...

2021-10-21  Rock drilling machine is an indispensable device in the excavation of tunnels by drilling and blasting method. The drill bit of drilling machine penetrates the rock body at a high speed and applies an impact load on it, increasing the range of broken rock body below the

Read More

A Novel Concept for a Rock-Breaking Machine. II ...

the rock could be extracted satisfactorily, and in geometries of low confinement, this could be accomplished with high efficiency. In concrete-breaking, no problems were encountered in breaking the concrete itself but, if present in a three-dimensional array, the reinforcing bars could cause trouble. Tests with the largest machine confirmed its

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US20060048957A1 - Rock breaking machine and

A rock breaking machine and to a method of lubricating a tool of a rock breaking machine. The lubricating system comprises at least one lubricant channel ( 23 ) into which lubricant is fed by a lubricating device ( 24 ). Lubricant is supplied to the bearing members ( 19 ) of the tool ( 6, 13 ) of the rock breaking machine. The lubricating device comprises a lubricant container ( 25 ) and a ...

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Royex Rock Breaking Excavation – Safe, Reliable and

The Royex rock breaking system is a collection of products and techniques designed to effectively break rock without the impact of ground vibrations, fly rock, over break and toxic gases. Royex rock breaking tools together with the support of our expert engineers offers a powerful alternative to conventional explosives and mechanical rock ...

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Metso Portable Rock Breaking Machine PE250*400mm

Metso Small Portable Rock Crushers For Sale Africa,Used Rock Small Portable Rock Crushers For Sale Small portable rock crusher has inexpensive and cost so you can use it in stone breaking PE250×400: 250×400: 210: 5-20 :::Metso Portable Rock Breaking Machine Pe250*400Mm Jaw . Dewo machinery can provides complete set of crushing and []

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Concept of a rock-breaking working element of an ...

Concept of a rock-breaking working element of an underground kimberlite ore mining machine Download PDF. Download PDF. Published: November 2006; Concept of a rock-breaking working element of an underground kimberlite ore mining machine ... M. K. Le Begue, Continuous Mining Machine, National Mine Service Co., USA Patent, 299-76 (E 21, 27/24), ...

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(PDF) Rock breaking methods to replace blasting

2021-8-2  Hydraulic splitting machine rock breaking process: According to the rock hardness, free surface, rock br eaking degree and the requirements of the direction of rock breaking and other conditions,

Read More

Free-face-Assisted Rock Breaking Method Based on the

2016-7-22  In order to improve the rock breaking efficiency of hard rock tunnel boring, many innovative rock breaking methods have been proposed (e.g., the water jet cutting, the high-power laser cutting, the impact-rotary drilling, and the undercutting method). However, most of the methods are not applicable to TBMs due to some structural reasons. Aiming on this problem, a free-face-assisted rock ...

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Influence of engineering parameters on rock breaking ...

2021-1-22  Influence of engineering parameters on rock breaking performance of raise boring Measurement ( IF 3.927) Pub Date : 2021-01-15, DOI: 10.1016/j.measurement.2021.109005 Xiu-kun Hu, Zhi-qiang Liu, Hao Tan

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A Novel Concept for a Rock-Breaking Machine. II ...

the rock could be extracted satisfactorily, and in geometries of low confinement, this could be accomplished with high efficiency. In concrete-breaking, no problems were encountered in breaking the concrete itself but, if present in a three-dimensional array, the reinforcing bars could cause trouble. Tests with the largest machine confirmed its

Read More

Simulation of Rock-Breaking Process by Drilling Machine ...

2021-10-21  Rock drilling machine is an indispensable device in the excavation of tunnels by drilling and blasting method. The drill bit of drilling machine penetrates the rock body at a high speed and applies an impact load on it, increasing the range of broken rock body below the

Read More

A Novel Concept for a Rock-Breaking Machine. II ...

This is the second paper describing the `Max' rock breaker. In the preceding part I, early experiments and the theory of the rock-breaking process were described. This report continues with a description of experiments made with a model unit (hole diameter 6.7 mm) to investigate the behaviour of the device in various geometries (tunnelling, stoping, and quarrying).

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Metso Portable Rock Breaking Machine PE250*400mm

Metso Small Portable Rock Crushers For Sale Africa,Used Rock Small Portable Rock Crushers For Sale Small portable rock crusher has inexpensive and cost so you can use it in stone breaking PE250×400: 250×400: 210: 5-20 :::Metso Portable Rock Breaking Machine Pe250*400Mm Jaw . Dewo machinery can provides complete set of crushing and []

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Most Popular Rock Breaking Machine Coal Jaw Crusher

2021-1-1  The rock crushing machine mainly used in the primary stage is jaw crusher. As everyone knows, diesel jaw crusher is a coarsely crushing machine. Besides, this kind of crusher machine is widely used to crush rock and large pieces of materials in mining smelting, building material, road, railway, water conservancy, chemical industry and so on.:::Alibaba

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Royex Rock Breaking Excavation – Safe, Reliable and

The Royex rock breaking system is a collection of products and techniques designed to effectively break rock without the impact of ground vibrations, fly rock, over break and toxic gases. Royex rock breaking tools together with the support of our expert engineers offers a powerful alternative to conventional explosives and mechanical rock ...

Read More

Concept of a rock-breaking working element of an ...

Concept of a rock-breaking working element of an underground kimberlite ore mining machine Download PDF. Download PDF. Published: November 2006; Concept of a rock-breaking working element of an underground kimberlite ore mining machine ... M. K. Le Begue, Continuous Mining Machine, National Mine Service Co., USA Patent, 299-76 (E 21, 27/24), ...

Read More

(PDF) Rock breaking methods to replace blasting

2021-8-2  Hydraulic splitting machine rock breaking process: According to the rock hardness, free surface, rock br eaking degree and the requirements of the direction of rock breaking and other conditions,

Read More

Free-face-Assisted Rock Breaking Method Based on the

2016-7-22  In order to improve the rock breaking efficiency of hard rock tunnel boring, many innovative rock breaking methods have been proposed (e.g., the water jet cutting, the high-power laser cutting, the impact-rotary drilling, and the undercutting method). However, most of the methods are not applicable to TBMs due to some structural reasons. Aiming on this problem, a free-face-assisted rock ...

Read More

Hydraulic Breaker Owner s Manual - Rock Breakers Inc.

2014-6-24  Breaking Oversize When breaking oversize material, the breaker is expected to break the material down quickly into multiple pieces. This is optimum production. If the operator has to re-position the breaker towards the edge of the rock and gradually

Read More