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Diesel pile hammer

A technology of pile driver and diesel oil, which is applied in the direction of sheet pile wall, building, foundation structure engineering, etc., can solve the problems of high cost, time loss, etc., and achieve the effect of small volume, good and effective combustion, and good atomization

Inactive Publication Date: 2007-12-12
DELMAG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If at the site it is determined that the soil properties are different than pre-planned, either the work must continue with sub-optimal equipment, or an additional diesel pile driver must be procured, resulting in lost time and higher costs

Method used

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  • Diesel pile hammer
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Examples

Experimental program
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Embodiment Construction

[0046] Figure 1 shows a diesel pile driver 10 with a cylinder 12 open on both sides, which may in fact have a length of 5 to 10 m and a diameter of 0.5 to 1 m.

[0047] Piston 14 moves within cylinder 12 . An impact member 16 coaxial with the piston is movably embedded in the open lower end of the cylinder 12 . The lower end of the cylinder 12 is provided with an annular support unit 20 fixed by means of screws, one of which is indicated in the figure with reference numeral 18 . The central rod-shaped section 22 of the hammer 16 is guided sealingly and displaceably in the bearing unit and has an outer diameter smaller than the inner diameter of the cylinder 12 .

[0048] At the lower end of the rod-shaped section 22 is formed an impact plate 24 located below the cylinder, and its outer convex lower boundary surface 26 is in contact with the upper end of piles to be driven such as concrete piles, iron beams, sheet pile wall elements, etc. during operation. collective effect. ...

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PUM

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Abstract

The invention relates to a diesel pile hammer (10) which comprises a cylinder (12), a piston (14) slidably mounted inside the cylinder (12), and an impact piece (16) slidably mounted inside the cylinder (12), said impact piece being arranged below the piston (14) in the operating position of the diesel pile hammer (10). A working compartment (32) is axially delimited by a face (36) of the impact piece (16) lying inside the cylinder (12) and a face (46) of the piston (14). A fuel supply device (52, 55, 62, 68) feeds a defined amount of fuel, especially diesel oil, to said working compartment with every working cycle. The fuel supply device (52, 55, 62, 68) is configured to inject the fuel into the working compartment (34) of the cylinder (12) optionally in a first mode of injection as an atomized fuel spray (76) or in a second mode of injection as a fuel jet (74) or in a third mode of injection both as an atomized fuel spray (76) and as a fuel jet (74).

Description

technical field [0001] The invention relates to a diesel pile driver, which has: [0002] a) Cylinder; [0003] b) a piston movably guided within a cylinder; [0004] c) a ram / striker guided movably in the cylinder, which is arranged below the piston in the working position of the diesel pile driver; [0005] d) the working chamber, which is surrounded by the end face of the impact member located inside the cylinder and the end face of the piston in the axial direction; [0006] e) A fuel supply device, via which a predetermined quantity of fuel, in particular diesel, can be supplied to the working chamber within each working cycle. Background technique [0007] Such diesel pile drivers, also known as diesel pile hammers, are used for driving various types of piles, such as concrete piles, iron beams, sheet pile wall elements, etc., into foundations, especially in the construction of foundations in the construction industry. [0008] To start such a diesel pile driver, t...

Claims

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Application Information

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IPC IPC(8): E02D7/12
CPCE02D7/125
Inventor M·海歇尔S·梅韦斯
Owner DELMAG