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Horizontal control method and system of winch lifting platform

A lifting platform and level control 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: 2013-10-09
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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  • Horizontal control method and system of winch lifting platform
  • Horizontal control method and system of winch lifting platform

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] This embodiment provides a level control method for a winch lifting platform. The platform is provided with four winches 1, 2, 3, 4 (see Figure 1a ), each winch corresponds to control 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. Refer to figure 1 , the method includes:

[0049] Step S11, real-time detection of the actual speed of each winch;

[0050] 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, wherein the difference rate between the actual speed and the first given speed is 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.

[0051] It can be seen from the above technical solution that in this embodiment, during the ...

Embodiment 2

[0057] This embodiment provides another method for controlling the level of the winch lifting platform. The platform is provided with four winches 1, 2, 3, 4 (see Figure 1a ), each winch corresponds to control 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. Refer to figure 2 , the method includes:

[0058] Step S21, real-time detection of the actual speed of each winch;

[0059] Step S22, obtain the inclination angle of the platform, judge whether the inclination angle is 0, if yes, continue to step S23, if not, go to step S24;

[0060] Step S23, for each winch, when the difference ratio between the actual speed and the first given speed is within the allowable range, control the winch to run at the first given speed, wherein the difference ratio between the actual speed and the first given speed The formula for calculating is: v is the actual speed, V in is the first given...

Embodiment 3

[0065] This embodiment provides yet another method for controlling the level of the winch lifting platform. The platform is provided with four winches 1, 2, 3, 4 (see Figure 1a ), each winch corresponds to control 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. Refer to image 3 , the method includes:

[0066] Step S31, real-time detection of the actual speed of each winch;

[0067] Step S32, obtain the inclination angle of the platform, judge whether the inclination angle is 0, if yes, continue to step S33, if not, go to step S34;

[0068] Step S33, for each winch, when the difference ratio 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;

[0069] Step S34, according to the inclination angle of the platform, determine the winches that need to be corrected for a given speed and the winc...

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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 involves the field of twisted control, and specially involves a horizontal control method and system of a twisted lifting platform. Background technique [0002] The twisted lifting system is an important part of the self -lifting platform. During the entire operation of the shiplift and the ship, the platform of the twisted lifting system needs to be kept horizontally to prevent the platform's pile legs unevenness and cause rollover accidents. [0003] The horizontal control method of the existing twisted lifting platform is to place a twisted car on the four top angles of the platform, and each of the pile legs of each twisted control platform increases or decreases the corresponding pile leg.The horizontal instrument, when the operator observes the tilt of the platform on the electronic level instrument, stops the platform action, and then manually adjusts a certain leg to allow the platform to reconnect the platform and then lifted the pla...

Claims

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Application Information

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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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