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A level control method and system for a winch lifting platform

A level control and lifting platform technology, applied in the direction of lifting frame, lifting device, clockwork mechanism, etc., can solve the problems of low reliability and low work efficiency, and achieve the effect of good reliability and high efficiency

Active Publication Date: 2015-10-21
WUHAN MARINE MACHINERY PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Manually controlling the level of the winch lifting platform is not reliable and the work efficiency is low

Method used

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  • A level control method and system for a winch lifting platform
  • A level control method and system for a winch lifting platform
  • A level control method and system for a winch lifting platform

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] This embodiment provides a horizontal control method of a winch lifting platform. The platform is equipped with four winches 1, 2, 3, 4 (see Figure 1a ), each winch correspondingly controls a leg of the platform. see Figure 1a , The four winches 1, 2, 3, 4 (respectively placed in the four cabins at the top corner of the platform. Reference figure 1 , The method includes:

[0045] Step S11, real-time detection of the actual speed of each winch;

[0046] Step S12: For each winch, when the difference rate between the actual speed and the first given speed is within the allowable range, control the winch to run at the first given speed, where the difference between the actual speed and the first given speed is equal to The calculation formula is: v is the actual speed, V in Is the first given speed, e is the difference rate between the actual speed and the first given speed, end.

[0047] It can be seen from the above technical solution that this embodiment detects the actua...

Embodiment 2

[0053] This embodiment provides another horizontal control method of the winch lifting platform. The platform is equipped with four winches 1, 2, 3, 4 (see Figure 1a ), each winch correspondingly controls a leg of the platform. see Figure 1a , The four winches 1, 2, 3, 4 (respectively placed in the four cabins at the top corner of the platform. Reference figure 2 , The method includes:

[0054] Step S21, real-time detection of the actual speed of each winch;

[0055] Step S22: Obtain the inclination angle of the platform, and determine whether the inclination angle is 0, if yes, proceed to step S23, if not, proceed to step S24;

[0056] Step S23: For each winch, when the difference rate between the actual speed and the first given speed is within the allowable range, control the winch to run at the first given speed, where the difference rate between the actual speed and the first given speed The calculation formula is: v is the actual speed, V in Is the first given speed, e i...

Embodiment 3

[0061] This embodiment provides yet another horizontal control method for a winch lifting platform. The platform is equipped with four winches 1, 2, 3, 4 (see Figure 1a ), each winch correspondingly controls a leg of the platform. see Figure 1a , The four winches 1, 2, 3, 4 (respectively placed in the four cabins at the top corner of the platform. Reference image 3 , The method includes:

[0062] Step S31, real-time detection of the actual speed of each winch;

[0063] Step S32: Obtain the tilt angle of the platform, and determine whether the tilt angle is 0, if it is, continue to step S33, if not, go to step S34;

[0064] Step S33: For each winch, when the difference rate between the actual speed and the first given speed is within the allowable range, control the winch to run at the first given speed and end;

[0065] Step S34, according to the tilt angle of the platform, determine the winch that needs to be corrected for a given speed and the winch that does not need to be corr...

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Abstract

The invention provides a horizontal control method of a winch lifting platform and belongs to the field of winch control. At least three winches are installed on the platform, each winch correspondingly controls one spud leg of the platform, and end points where the spud legs corresponding to the at least three winches are connected with the platform are not on the same straight line. The method comprises the steps of detecting the actual speed of each winch in a real-time mode; as for the winches, when the difference ratio between the actual speed and the first given speed is within the permissible range, controlling the winches to operate at the first given speed. According to the technical scheme, posture control over inclination, caused by different speeds of the winches, of the platform can be carried out, the platform is adjusted to be the horizontal posture, the horizontal control method is high in control efficiency and good in control quality, the posture control over the inclination, caused by unsmooth bottom face of the water bottom, of the platform can also be carried out, the platform can be adjusted to be the horizontal posture, and meanwhile the invention discloses a horizontal control system of the winch lifting platform.

Description

Technical field [0001] The invention relates to the field of winch control, in particular to a horizontal control method and system for a winch lifting platform. Background technique [0002] The winch lifting system is an important part of the jack-up platform. During the entire operation process of lifting and lowering the ship, the platform of the winch lifting system needs to be kept level to avoid uneven forces on the legs of the platform and cause rollover accidents. [0003] The horizontal control method of the existing winch lifting platform is: a winch is placed on the four top corners of the platform, and each winch controls a leg of the platform to make the corresponding leg rise or fall, and an electronic device is placed in the center of the platform. Level meter, when the operator observes that the platform is tilted on the electronic level meter, it stops the platform movement, and then manually adjusts a certain leg individually to allow the platform to level again ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66F7/28B66D1/48
Inventor 马志刚江志钢徐潇胡建朱真利
Owner WUHAN MARINE MACHINERY PLANT
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