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One-point or two-point angle calibration method of crane boom and crane

A single-point calibration and angle calibration technology, applied in the direction of load hanging components, transportation and packaging, etc., can solve problems such as difficult to quickly and accurately calibrate the angle of the boom arm of the crane, and achieve the effect of avoiding mechanical interference and safe use

Active Publication Date: 2018-09-07
SANY AUTOMOBILE HOISTING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide a single-point calibration method for the boom angle of a crane to solve the problem in the prior art that it is difficult to quickly and accurately calibrate the boom angle of a crane
[0006] The present invention aims to provide a two-point calibration method for the boom angle of a crane to solve the problem in the prior art that it is difficult to quickly and accurately calibrate the boom angle of a crane

Method used

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  • One-point or two-point angle calibration method of crane boom and crane
  • One-point or two-point angle calibration method of crane boom and crane
  • One-point or two-point angle calibration method of crane boom and crane

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Embodiment 1

[0050] This embodiment provides a single-point calibration method for the boom angle of a crane, which is used to calibrate an angle sensor for measuring the angle of the boom boom of a crane, which includes the following steps:

[0051] Determine a specific position of the boom and the angle A0 of the boom of the crane corresponding to the specific position; the specific position in this embodiment can be the first specific position or the second specific position.

[0052]Among them, the method of determining the first specific position is: adjust the luffing cylinder to its vertical state, so that the three hinge points of the boom of the crane form a right triangle, and the vertical state of the luffing cylinder is verified by a vertical detection tool; the corresponding crane The angle A0 of the boom is pre-stored data corresponding to the first specific position or calculated from the geometric parameters of the three hinge points when the boom is in the first specific po...

Embodiment 2

[0060] This embodiment provides a two-point angle calibration method for a boom of a crane, which is used for calibrating an angle sensor for measuring the angle of a boom of a crane. The difference from the single-point angle calibration method of the boom arm of the crane in the first embodiment is that the slope of the angle sensor is not calibrated in the first embodiment, but the slope of the angle sensor is also calibrated in this embodiment. Based on this difference, the single-point angle calibration method of the crane boom in Embodiment 1 is suitable for the calibration of angle sensors with better performance and accurate slope, while the two-point angle calibration method of the crane boom in this embodiment has poor performance at the same time , The calibration of the angle sensor whose slope is not accurate enough.

[0061] The two-point angle calibration method of the crane boom in this embodiment includes the following steps:

[0062] Determining the first sp...

Embodiment 3

[0071] This embodiment provides a calibration system for a crane, which can simultaneously implement the single-point angle calibration method for the crane boom in Embodiment 1 and the two-point angle calibration method for the crane boom in Embodiment 2.

[0072] See Figure 7 , the method of using the calibration system in this embodiment is: start the calibration system, enter the calibration interface, and select whether to calibrate according to the system prompt; after selecting "Yes", select the angle sensor model actually used by the crane according to the system prompt, and obtain The parameters of the angle sensor (slope, measuring range, etc.); then select the single-point angle calibration method of the crane boom or the two-point angle calibration method of the crane boom according to the system prompts; when the boom is adjusted to the required specific position, After the arrival at a specific position is confirmed by the system, the system stores the output va...

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Abstract

The invention relates to the field of cranes, aims to solve the problem that an angle of a big arm of a crane cannot be easily, quickly and correctly calibrated in the prior art, and provides a single-point or two-point angle calibration method of the big arm of the crane and the crane. The single-point angle calibration method of the big arm of the crane comprises the following steps: determining a specific position of the big arm and a corresponding angle of the big arm of the crane; recording an output value of an angle sensor in a specific position by using a tuning system; and calibrating a characteristic curve of the angle sensor by combining the angle, the output value and the slope corresponding to the angle sensor. The method disclosed by the invention has the beneficial effects that the angle of the big arm of the crane can be quickly and correctly calibrated, the accurate angle state of the big arm can be acquired, the danger of mechanical interference and the like which is directly or indirectly caused by angle state indication mistakes in a using process is avoided, and the crane is safe to use.

Description

technical field [0001] The invention relates to the field of cranes, in particular to a single-point or two-point angle calibration method for a boom arm of a crane and the crane. Background technique [0002] The boom angle of the crane is one of the important parameters for the safety control of the crane. [0003] At present, the correction or calibration of the boom angle of the crane is basically carried out by using an electronic angle ruler for measurement and calibration during the debugging stage in the factory. After leaving the factory, once there is a large angle deviation or the angle sensor fails and needs to be replaced, it needs to be re-calibrated in time. However, in the off-site environment, it is generally not easy to obtain special calibration tools such as electronic angle rulers, which makes it difficult to quickly and accurately calibrate the angle of the boom of the crane. Contents of the invention [0004] The invention aims to provide a single-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C13/16B66C13/20
CPCB66C13/16B66C13/20
Inventor 何伟城申卫兵邓连喜
Owner SANY AUTOMOBILE HOISTING MACHINERY