Travelling crane variable-frequency speed regulation control system special for pipe pile

Abstract

The invention discloses a travelling crane variable-frequency speed regulation control system special for a pipe pile. A cab is provided with a left cart limiting alarm, a right cart limiting alarm and a display screen, a travelling crane I calibrator and a travelling crane II calibrator are additionally installed, and the above devices are connected with a PLC through data lines. An upper-row port of the PLC is sequentially connected with a travelling crane I signal input, a travelling crane II signal input, the left cart limiting alarm, the right cart limiting alarm, travelling crane I and II frequency converter input signal acquisition and travelling crane I and II limit position alarm. A lower-row port of the PLC is sequentially connected with a travelling crane I lifting hook superelevation alarm, a travelling crane II lifting hook superelevation alarm, a travelling crane I overspeed alarm and power failure, a travelling crane II overspeed alarm and power failure, a travelling crane I double-encoder contrast imbalance alarm, a travelling crane II double-encoder contrast imbalance alarm, a left cart limit alarm and deceleration, a right cart limit alarm and deceleration and a relay. The traveling crane improved through the system meets the requirements of high-strength and high-load work without barriers in the running process, and the running safety of the traveling crane is improved.

Description

technical field [0001] The invention relates to the technical field of pipe pile production, in particular to a frequency conversion speed regulation control system for driving a pipe pile. Background technique [0002] In the production of pipe pile industry, driving is an indispensable handling tool. In the pipe pile production industry, it is used in all aspects of mold handling, feeding, centrifugation, steam curing, and demoulding. The biggest problem in the production of pipe piles is the use under extreme driving conditions and the use environment. 24 hours of continuous operation, high load, high load working environment, usually the temperature of the pipe pile production workshop is more than 10° higher than the outdoor temperature, which poses more and more challenges to the normal use of driving. [0003] The hook control system of the existing crane is controlled by a contactor. A 45kw motor is controlled by two upper and lower motors and four resistance switch...

AI Technical Summary

Problems solved by technology

[0003] The hook control system of the existing crane is controlled by a contactor. A 45kw motor is controlled by two upper and lower motors and four resistance switches, a total of six 1700 contactors. When any one of the contactors does not work properly, the entire device will not work. Maintenance is required, especially in summer when the temperature in the workshop is high, and the main hook 45kw in the driving hook is often damaged

The above problems cannot be solved in the industry at present, and have seriously affected the orderly operation of pipe pile production

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