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Device and method for machining a counterweight bore on a crankshaft of an internal combustion engine

A technology of internal combustion engine and counterweight hole, applied in the direction of driving device, metal processing mechanical parts, crankshaft, etc., can solve problems such as large cost

Active Publication Date: 2021-05-11
MAN ENERGY SOLUTIONS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Machining the counterweight holes involves considerable expense, so for this purpose the crankshaft has to be removed from the internal combustion engine as a matter of practice

Method used

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  • Device and method for machining a counterweight bore on a crankshaft of an internal combustion engine
  • Device and method for machining a counterweight bore on a crankshaft of an internal combustion engine
  • Device and method for machining a counterweight bore on a crankshaft of an internal combustion engine

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Embodiment Construction

[0040] The invention relates to a device and a method for machining a counterweight bore on a crankshaft of an internal combustion engine.

[0041] figure 1 A view showing a device 10 for machining a counterweight hole 21 on a crankshaft 22 of an internal combustion engine 11 according to the invention in a state where the crankshaft 22 is installed in the internal combustion engine 11, wherein in figure 1 In this case, the device 10 according to the invention is mounted to the crankshaft cheek 12 of the crankshaft 22 of the internal combustion engine 11 .

[0042] The device 10 according to the invention comprises an adapter plate 13 via which the device 10 can be oriented and mounted to the counterweight hole 21 of the crankshaft 22 while leaving the counterweight hole 21 to be machined. Correspondingly, the adapter board 13 is in figure 2 A plurality, preferably four, of orientation and mounting holes 14 are included in the preferred configuration shown in .

[0043] Ut...

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Abstract

A device (10) for machining a counterweight hole (21) on a crankshaft (22) of an internal combustion engine with the crankshaft (22) installed in the internal combustion engine, with an adapter plate (13), which Can be orientated and mounted to the counterweight hole (21) of the crankshaft (22) while leaving the counterweight hole (21) to be machined, with a cross table (15) that can be mounted to the adapter plate (13) , with a transmission (17) comprising a drive motor (18) mountable to a cross table (15) on which a machining tool (20) for a counterweight hole (21) to be machined can be mounted The shaft (23) can be driven rotatably via a drive motor (18) and a transmission (17), and wherein the shaft comprising the transmission (17) can be crossed in the longitudinal direction of the counterweight hole (21) to be processed Move in translation above the platform (15).

Description

technical field [0001] The invention relates to a device for machining a counterweight bore on a crankshaft of an internal combustion engine. Furthermore, the invention relates to a method for machining a counterweight bore on a crankshaft of an internal combustion engine. Background technique [0002] The crankshaft of a large internal combustion engine, such as a marine diesel internal combustion engine, weighs several tons. Such crankshafts comprise crankshaft cheeks, between which extend connecting rod bearing journals for connecting the connecting rods, wherein counterweight holes are introduced into the crankshaft cheeks of such crankshafts, on which counterweight holes can be mounted The counterweight of the crankshaft. In the case of crankshafts known from practice, it can be noted that the counterweight holes constitute a weak point of the crankshaft since stress cracks can form in the region of the counterweight holes. Machining the counterweight hole involves c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B41/00B23B47/02B23B45/14B23Q9/00
CPCB23B39/14B23B41/006B23B41/00B23Q5/10B23Q9/0007B23B41/12B23B2215/20B23B2247/12F16C3/20B23B47/00B23Q5/043B23Q9/0042
Inventor S.维尔德P.海姆佐特
Owner MAN ENERGY SOLUTIONS SA
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