A control method of the automatic tension hydraulic control system of the cable winding and unwinding car reel

Abstract

The invention discloses an automatic roller tension hydraulic control system and method of a cable winding and unwinding trolley. The control system comprises an oil tank, a motor, a filter, a hydraulic pump, an overflow valve, a controller, a remote controller receiving end, a remote controller, a touch screen, a multi-circle encoder, a roller, a tension sensor, a motor, a balance valve set, a multi-path valve and a load pressure adjusting valve. The control method includes the steps of automatically calculating the permitted tension capable of being borne by cables according to the cables of different types, limiting the maximum output tension of the roller to achieve the roller tension protection, installing the tension sensor on one side of the roller, controlling the load pressure adjusting valve in real time through the controller, and controlling the inlet and outlet pressure difference of the motor to automatically adjust the output torque of the motor in a closed-loop mode. Thus, the effect of automatically adjusting the tension of the roller is achieved. The automatic roller tension hydraulic control system is simple in structure, reasonable in design and reliable in work.

Description

technical field [0001] The invention relates to an automatic tension hydraulic control system and a control method, in particular to a control method for the automatic tension hydraulic control system of a reel of a cable unwinding vehicle. Background technique [0002] In large-scale engineering construction, in order to transmit and supply power to mobile operation equipment, it is often necessary to transport and retract cables. The cable reeling vehicle is the necessary special equipment to complete the transportation, laying, retracting and storage of on-site cables. However, the engineering site usually has a harsh working environment, rough roads, complex road conditions, often uneven and frequent ups and downs, which brings great inconvenience to the cable retraction operation. [0003] However, there is still a lack of a hydraulic control system and control method that can not only maintain the normal operation of the cable retracting and releasing line, but also a...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems existing in the use of reel friction tension control for the reel of the existing cable reeling and unwinding vehicle. The poor coordination of the transmission system can easily cause the cable to be too tight or too loose, entangled, damaged or even broken when the cable is rolled. A control method for the automatic tension hydraulic control system of the cable reel and unwinding reel is provided.

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