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Impulse generator and impulse tool with impulse generator

A technology for pulse generators and tools, which is applied in the direction of portable impact tools, striking tools, manufacturing tools, etc., and can solve the problems of increased impact frequency and other issues

Inactive Publication Date: 2011-11-09
ATLAS COPCO ROCK DRILLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to reduce the aforementioned dynamic acceleration forces, efforts have been made to produce rock breaking tools that, unlike conventional rock breaking tools, have a piston that does not move back and forth in the cylinder during the delivery of impact forces that can also cause Shock frequency increased

Method used

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  • Impulse generator and impulse tool with impulse generator
  • Impulse generator and impulse tool with impulse generator
  • Impulse generator and impulse tool with impulse generator

Examples

Experimental program
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Embodiment Construction

[0015] figure 1 A longitudinal section of a pulse generator 2 of a first embodiment is schematically shown, the pulse generator 2 comprising a housing 4 having a thrust chamber 6 for receiving a pressurized fluid volume 8 and a pulse piston 10 accommodated in the thrust chamber 6, Among them, a pulse piston 10 is provided for directly or indirectly converting the pressure peak in the fluid volume 8 into the propulsion force in the tool 12, thereby realizing the energy conversion from the propulsion mechanism 14 by reducing the volume of the propulsion chamber 6 The thrust force in the tool 12 is generated so that the pulse piston 10 is driven forward by the pressure peak in the thrust chamber 6 . If the pulse piston 10 is arranged in the vicinity of the tool 12, the thrust force is transferred directly, but it can also be diverted indirectly, for example via an intermediate shank (not shown). In this figure, the advancing chamber 6 is shown in such a position that the pressur...

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PUM

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Abstract

The invention relates to an impulse generator (2) for a rock breaking tool, which comprises a propulsion chamber (6) for receiving a pressurizeable liquid volume (8), and an in the propulsion chamber (6) received impulse piston (10), where the impulse piston (10) is arranged for transfer of pressure peaks in the liquid volume (8) into impulses in the tool (12), whereby transfer of energy from a propulsion mechanism (14) into impulses in the tool (12) is effected by volume reduction of the propulsion chamber (6), whereby the impulse piston (10) is driven forward by a pressure peak in the propulsion chamber (6). The invention also relates to a hydraulic impulse tool comprising an impulse generator (2).

Description

technical field [0001] The invention relates to a pulse generator for a rock breaking tool, and a pulse tool with a pulse generator. Background technique [0002] In conventional rock breaking tools, a piston reciprocating in a cylinder by compressed air and hydraulic action is used, wherein the piston directly or indirectly impacts the end of a steel burr, for example through a shank shank, and then impacts rock. Unnecessary dynamic acceleration forces are created in the drill rig due to the high mass of the piston moving rapidly towards the rod, which pulls the rod away from the rock as hard as it can. [0003] In order to reduce the aforementioned dynamic acceleration forces, efforts have been made to produce rock breaking tools that, unlike conventional rock breaking tools, have a piston that does not move back and forth in the cylinder during the delivery of impact forces that can also cause Shock frequency increased. [0004] GB 2 047 794 A shows a rock breaking tool...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25D9/12
CPCB25D9/12B25D11/10B25D9/125
Inventor S·哈特维希
Owner ATLAS COPCO ROCK DRILLS