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Lifting mechanism control system with hydraulic gear-shifting transmission and glide-hook detecting method

A hoisting mechanism and control system technology, applied in the direction of the clockwork mechanism, the hoisting device, etc., can solve the problems affecting the safety of hoisting machinery, insufficient pressure of the shift valve, slipping hook of the hoisting mechanism, etc., and achieve real-time performance. And the control performance is good, the detection method is simple, and the effect of ensuring the safety of use

Active Publication Date: 2017-05-24
SHANDONG FENGHUI EQUIP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hoisting mechanism with hydraulic shift transmission can significantly increase the operating speed of the hoisting mechanism in actual use, but in the process of field use, because the hydraulic shifter is based on the electro-hydraulic control pipeline of the hydraulic pipeline Oil leakage and pressure relief lead to insufficient pressure of the shift valve, failure of the control solenoid valve, etc., or damage to the coupling between the motor and the shifter, the shifter and the reducer, which will lead to the phenomenon of the lifting mechanism slipping, thus Affects the use safety of the entire hoisting machinery, and the former sliding hook factor is unpredictable

Method used

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  • Lifting mechanism control system with hydraulic gear-shifting transmission and glide-hook detecting method
  • Lifting mechanism control system with hydraulic gear-shifting transmission and glide-hook detecting method
  • Lifting mechanism control system with hydraulic gear-shifting transmission and glide-hook detecting method

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Embodiment Construction

[0018] The present invention will be described in detail below with reference to the drawings and embodiments.

[0019] figure 1 Shown is the installation diagram of the pressure signal acquisition device and the reel forward and reverse detection device of the present invention.

[0020] The invention is applied to a lifting mechanism with a hydraulic shift transmission. The lifting mechanism includes an electric motor 1, a hydraulic shift transmission 2, a pressure signal acquisition device 3, a reducer 4, a brake 5, a reel 6, and a reel Forward and reverse detection device 7. Compared with the conventional lifting mechanism, this lifting mechanism is provided with a hydraulic shift transmission 2 between the electric motor 1 and the reducer 4, and a pressure signal acquisition device 3 is added on the hydraulic shift transmission 2. A set of reel forward and reverse detection device 7 is added to the tail of the reel.

[0021] The control system of the present invention includes...

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Abstract

The invention discloses a lifting mechanism control system with a hydraulic gear-shifting transmission and a glide-hook detecting method. The control system comprises a reel positive and negative rotation detecting device, a main controller module and more than one pressure signal acquiring device, wherein the pressure signal acquiring device comprises five pressure detecting sensors SP0-SP4, and is used for acquiring a main control signal and each pressure signal at an operating valve of a hydraulic gear shifter in real time, converting the pressure signals into a current signal, and transmitting the current signal to the main controller module; the main controller module is used for processing a signal acquired by the pressure signal acquiring device and performing corresponding operation analysis; and the reel positive and negative rotation detecting device is used for detecting positive / negative changes of a reel of a lifting mechanism, transmitting change values to the main controller module, and detecting whether the reel is in a glide-hook state or not. The lifting mechanism control system is good in real-time performance and control performance and is convenient to mount, and the hydraulic gear-shifting lifting mechanism is safe and reliable; and the glide-hook detecting method is simple, accurate and effective.

Description

Technical field [0001] The invention relates to a lifting mechanism control system and a hook sliding detection method, belonging to the technical field of lifting mechanism control. Background technique [0002] The hoisting mechanism is one of the main mechanisms of crane equipment such as tower cranes, bridge cranes, and gantry cranes. The traditional hoisting mechanism configuration forms are motors, brakes, reducers, drums, etc., and its speed adjustment range is generally not large. Constant power operation can be realized when variable frequency speed regulation. [0003] With the demand of construction companies for the speed range, the lifting speed directly affects the progress of the project. How to improve the lifting speed has become a topic of discussion among various crane manufacturers and has become one of the conditions for competition in the crane industry. Based on this, the hydraulic shift transmission is gradually applied to the lifting mechanism due to its u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66D1/48
CPCB66D1/485
Inventor 孟庆琳王进峰赵连远史海红沈兰华李靖夏文艳
Owner SHANDONG FENGHUI EQUIP TECH
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