Portal crane operation control system capable of accelerating descending

A gantry crane, operation control technology, applied in the direction of load hanging components, transportation and packaging, etc., can solve problems such as difficult to improve work efficiency, achieve remarkable application effect, safe and reliable performance, and construction safety guarantee effect

Inactive Publication Date: 2015-09-09
TIANJIN PORT HUISHENG TERMINAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing lifting and rotating speeds are limited by the load capacity of the electronic control system, so it is difficult to improve work efficiency; however, since the lowering process does not require energy consumption, there is no pressure on the electronic control system, so when the portal crane completes the lowering action Accelerated operation becomes the key to technological improvement

Method used

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  • Portal crane operation control system capable of accelerating descending

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Example Embodiment

[0009] The specific implementation, structure, and features provided in accordance with the present invention are described in detail below with reference to the accompanying drawings and preferred embodiments:

[0010] Such as figure 1 As shown, a portal crane operation control system capable of accelerating and descending includes a foot switch 1, a main control system 2, a frequency converter 3, a motor 4, and a lifting and lowering action mechanism 5; the main control system 2 Connect the inverter 3, the inverter 3 is connected to the motor 4, and the motor 4 is connected to the lifting and lowering action mechanism 5. The control system is equipped with a foot switch 1 for inputting acceleration and descent commands. The foot switch 1 is connected to the main control through a signal cable The reserved interface connection in system 2.

[0011] In application, when the gantry crane is in the lifting motion, the operator activates the relevant functions in the main control system

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PUM

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Abstract

The invention relates to a portal crane operation control system capable of accelerating descending. The system comprises a pedal switch, a mater control system, a frequency converter, a motor and an ascending and descending motion mechanism. The master control system is connected with the frequency converter, the frequency converter is connected with the motor, and the motor is connected with the ascending and descending motion mechanism; the control system is provided with the pedal switch for inputting a descending accelerating instruction, and the pedal switch is connected with a reserved interface in the master control system through a signal cable; and the system effectively achieves the descending accelerating motion of a crane, shortens the descending time and improves the working efficiency. In the operation process, compared with descending of the process that the master control system commands the frequency converter to control the motor to move, that is, the ascending and descending motion mechanism enables cargo to descend, descending of the cargo in the system can be accelerated by 10 percent to 15 percent, and when an operator loosens the pedal switch, the master control system carries out braking. The system is simple in structure, reasonable in design, easy and convenient to operate, and safe and reliable in performance; and when the portable crane is used for carrying out bulk cargo work, the application effect is quite obvious.

Description

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Claims

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Application Information

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Owner TIANJIN PORT HUISHENG TERMINAL
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