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Device and method for weighing ballast at a crane and corresponding crane

A crane and ballast technology, applied in the field of ballast weighing equipment, can solve problems such as inability to simply call data, errors, etc., achieve good protection and reduce the risk of damage

Active Publication Date: 2021-08-03
LIEBHERR WERK EHINGEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is problematic in this manner that errors can occur during the manual input of the required data and / or the required data cannot be recalled easily

Method used

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  • Device and method for weighing ballast at a crane and corresponding crane
  • Device and method for weighing ballast at a crane and corresponding crane
  • Device and method for weighing ballast at a crane and corresponding crane

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Embodiment Construction

[0037] Figure 1a A schematic diagram showing a device according to the invention for weighing ballast at a crane. Shown here is a left ballast cylinder 1 and a right ballast cylinder 1' for lifting ballast 2 not shown in detail. The ballast cylinders 1, 1' each comprise at least one pressure sensor 10, 10', which are respectively arranged in the piston-side and / or rod-side region of the ballast cylinders 1, 1'. Further pressure sensors 11, 11' can be arranged at the piston side of the ballast cylinders 1, 1'. Depending on whether there is an embodiment with one pressure sensor per ballast cylinder 1 , 1 ′ or an embodiment with two pressure sensors, two pressure sensors at the ballast cylinder 1 , 1 ′ can be determined or used according to the invention differential pressure between or absolute pressure measured at a single pressure sensor.

[0038]Pressure sensors 10 , 11 ; 10 ′, 11 ′ can be coupled to evaluation unit 3 . The evaluation unit 3 is designed to calculate the ...

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Abstract

The invention relates to a device for weighing ballast at a crane, the device having at least two ballast cylinders, which are designed to lift / lower ballast, and the The ballast cylinder in each case comprises at least one pressure sensor in the region of the piston side and / or the rod side; and at least one evaluation unit, which is designed to exclude frictional forces occurring in the ballast cylinder, The mass moved by the ballast cylinder is calculated from the pressure detected by the pressure sensor when the ballast cylinder is moved in and / or out. The invention also relates to a method for calculating the ballast weight of a crane by means of a corresponding device.

Description

technical field [0001] The invention relates to a device for weighing ballast on a crane, said device having at least two ballast cylinders, which are designed to lift and / or lower ballast, Furthermore, the ballast cylinder comprises at least one pressure sensor in the region of the piston side and / or the rod side; Conditionally the mass moved by the ballast cylinder is calculated from the pressure detected by the pressure sensor as the ballast cylinder moves in and / or out. The invention also relates to a method for calculating the ballast weight by means of a corresponding device. Background technique [0002] The counterweight or ballast weight provides the moment against the load carried by the crane. The counterweight thus mainly contributes to the upright stability of the crane. If the crane has, for example, an automatic load moment limitation, the magnitude of the effective counterweight or the mass of the counterweight and the effective lever arm are used to calcu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/76
CPCB66C23/76B66C13/16B66C23/74G01G5/045G01G5/003G01G5/04G01G5/06
Inventor 罗伯特·克鲁茨汉斯-迪特尔·维利姆
Owner LIEBHERR WERK EHINGEN
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