Retracting and unwinding device

Abstract

The invention discloses a novel cable retracting and releasing device, which comprises a cable storage device and a cable protection device, wherein the cable protection device comprises a fixed arm and a movable arm which are mutually pivoted; an elastic part and a microswitch are arranged at the pivoted part of the fixed arm and the movable arm; when the movable arm is pivotally folded to a trigger position, the microswitch is triggered; the fixed arm is provided with a first tension pulley and a second tension pulley; the movable arm is provided with a third tension pulley; a winding motor in the cable storage device is fixed on a rotating part and the rotating part and a winding part are driven to rotate by the meshing relationship of a fixed gear and a planetary gear; and a driving wheel and a connecting rod are arranged on the winding part and drive a swing arm to swing. The microswitch controls a main motor and / or the winding motor. A cable passes through the tension pulleys and is wound on a wire spool; and the movable arm is folded when the tension is over-high, so that the microswitch closes the motor to stop the retracting and releasing action and the cable is protected. The cable storage device is free of an electrical component; the irradiation resistance is high; the actions of rotating winding and swinging wiring are synchronous; and wiring is uniform.

Description

technical field [0001] The invention relates to a cable retracting device, in particular to a cable retracting device applied to a nuclear power robot. Background technique [0002] In many fields, robots are needed to replace manual work. The advantage of robots is that they can work in dangerous environments such as high radiation and high temperature, or in places that are not suitable for humans to go to, such as small areas. However, robots need to have power input when working , and the data needs to be transmitted bidirectionally between the robot and the control terminal during operation, so the robot needs to be connected with a connecting cable. [0003] Taking the field of nuclear power as an example, nuclear power plant robots, as one of the important equipment to improve nuclear safety and power plant emergency, are widely used in the daily maintenance and accident rescue of nuclear power plants. Combined with the complex environment inside the nuclear power pl...

AI Technical Summary

Problems solved by technology

There are two main disadvantages in the structure of the current retractable cable device: first, it needs the assistance of electrical components such as encoders and sensors to carry out the retraction, and in the field of nuclear power, the radiation of the robot’s workplace is relatively large, which is harmful to general electricity. Therefore, the maintenance cost of this cable storage device is high and the working life is short, and once the electrical components lose their function under the influence of radiation, the process and effect of taking up the wires will also be affected, resulting in Uneven distribution of cables on the reel

Second, the weight of the optical fiber cable is relatively light, and its own toughness and strength are slightly insufficient, and its tensile strength is poor. However, the existing cable retracting device does not provide enough protection for the cable when retracting the cable, and the pulling force is relatively large. , it is easy to damage the cable, causing the robot to no longer work normally

Images