Cable crane descending limiting method and cable crane

A cable crane and position-limiting technology, which is applied to cable cranes, hoists, load hoisting components, etc., can solve problems such as personal and equipment safety accidents, operation errors, command errors, etc., so as to reduce the difficulty and intensity of operation, and reduce maintenance. Adjustment time, the effect of reducing the probability of misoperation

Active Publication Date: 2020-06-26
杭州国电大力机电工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the dam surface continues to rise during pouring, the lowering limit of the lifting mechanism will also continue to rise, and the height of each dam surface is different. Maintenance personnel cannot frequently manually adjust the lifting and lowering limit. The lifting and lowering limit cannot be protected normally
However, the construction site of hydropower stations works in 24-hour shift

Method used

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  • Cable crane descending limiting method and cable crane
  • Cable crane descending limiting method and cable crane

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0047] Example one:

[0048] Such as figure 1 with figure 2 As shown, this embodiment provides a cable crane descending limit method, which is used in the construction of a dam pouring project of a hydropower station, and includes the following steps:

[0049] Set the number i of each dam section and the descending limit value of the hopper of the cable crane j of the cable crane in each dam section. The descending range of the hopper is within the descending limit value, that is, the hopper descends to the descending limit value at the lowest The corresponding position cannot continue to descend, and it will automatically decelerate and stop, so as to play the role of descending limit protection;

[0050] Obtain the position data of cable machine j, and determine the dam section i where it is located according to the position data of cable machine j. When judging dam section i, start from 1. If the current position of cable machine j is in dam section 1, proceed to the next step....

Example Embodiment

[0064] Example two

[0065] This embodiment provides a cable crane, which is used to implement the lowering limit method of the cable crane in the first embodiment, and is also used in the construction of the dam pouring project of a hydropower station, including: a cable crane, a main control system and a database.

[0066] The cable machine, including the hopper, is used to perform unloading and pouring;

[0067] The main control system includes a cable machine scanning module and a cycle judgment module. The main control system is used to set the number i of each dam section and its corresponding drop limit value, obtain the position data of the cable machine j, and determine the dam where the cable machine j is located At section j, the hopper is controlled to descend by the cable machine, and the hopper's descending range is within the descending limit value. The main control system controls the hopper through the cable machine to reach the preset discharge position, judges the ...

Example Embodiment

[0079] Embodiment three

[0080] This embodiment provides a computer device including a memory and a processor, and a computer program is stored in the memory, and the processor implements the method in any of the above-mentioned embodiments when the processor executes the computer program. A person of ordinary skill in the art can understand that all or part of the processes in the methods of the foregoing embodiments can be implemented by computer programs instructing relevant hardware. Accordingly, the computer program can be stored in a non-volatile computer readable storage medium, and when the computer program is executed, the method described in any one of the above embodiments can be implemented. Wherein, any reference to memory, storage, database or other media used in the embodiments provided in this application may include non-volatile and / or volatile memory. Non-volatile memory may include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM...

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Abstract

The invention discloses a cable crane descending limiting method and a cable crane, and relates to the technical field of cable cranes. The method comprises the following steps that serial numbers ofall dam sections as well as descending limiting values of a bucket of the cable crane at the dam sections are set, and the descending range of the bucket is within the descending limiting values; position data of the cable crane are obtained, and the dam section where the cable crane is located is judged; the cable crane determines a preset unloading position according to the descending limiting value of the dam section where the cable crane is located; and the states of the bucket and the dam sections are judged, and the descending limiting values are upgraded according to the states of the bucket and the dam sections. According to the method provided by the invention, the descending limiting value of each dam section can be automatically recognized and upgraded in the use process of thecable crane so that a lifting tank can automatically decelerate and stop when reaches the descending limiting value.

Description

【Technical field】 [0001] The invention relates to the technical field of cable cranes, in particular to a method for limiting the descent of a cable crane and a cable crane. 【Background technique】 [0002] The main construction equipment for hydropower dam pouring is cable crane, portal crane, tower crane, etc. Among these equipment, the cable crane has a large coverage area and high pouring efficiency, and is widely used in the field of material transportation for medium and large hydropower station dams. [0003] The cable crane is the main pouring equipment of the dam, and there are a large amount of construction workers and construction equipment on the working face. In the prior art, a limit switch is set on the reel of the hoisting mechanism as a protection device for the hoisting mechanism. The limit switch is a very important protection device. If the operator of the cable crane fails to stop in time when the hoisting tank is close to the warehouse surface due to mi...

Claims

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Application Information

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IPC IPC(8): B66C21/00B66C13/48
CPCB66C21/00B66C13/48Y02E10/20
Inventor 祝秋华宣洁琦
Owner 杭州国电大力机电工程有限公司
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