Constant-torque automatic cable winder-unwinder

Abstract

The invention discloses a constant-torque automatic cable winder-unwinder, comprising a motor and a winding drum, wherein a fixed shaft of the motor is connected to a left end of the winding drum, a rotary shaft of the motor is fixedly connected to a right end of the winding drum, a constant-torque device is arranged between the rotary shaft and the motor and comprises a driven flange plate fixedly connected to the rotary shaft and a driving flange plate, a right end surface of the driven flange plate is provided with a cylindrical convex ring that is coaxial with the rotary shaft, one side of the driven flange plate facing the driving flange plate is provided with a first permanent magnet, the driving flange plate is rotatably connected to the convex ring of the driven flange plate, a gap is maintained between the driving flange plate and the driven flange plate, and one side of the driving flange plate facing the driven flange plate is provided with a second permanent magnet; the gap is maintained constantly between the driving flange plate and the driven flange plate of the constant-torque device, and the constant-torque automatic cable winder-unwinder never abrades even after long-term usage and is simple to operate and maintain, low in failure rate and low in cost of use; the constant-torque automatic cable winder-unwinder is compact in structure and widely applicable; constant output torque can be adjusted to an optimal value, so that a cable has longer life.

Description

technical field [0001] The invention relates to a cable retracting device for lifting and laterally moving three-dimensional parking equipment, in particular to an automatic cable retracting device with constant torque, which belongs to the technical field of mechanical three-dimensional parking equipment. Background technique [0002] With the development of the automobile industry and the improvement of people's living standards, the popularity of automobiles has become more and more widespread, and the per capita automobile ownership in cities has continued to increase, and it is still growing at a rate of 20% to 30% per year. The problem of automobile parking is also becoming more and more serious. Due to the limited space on the urban ground, building a three-dimensional garage has become an important method to solve parking difficulties. [0003] Planar mobile parking equipment is a mechanical parking equipment that uses a transport trolley to move vehicles in a plane ...

AI Technical Summary

Problems solved by technology

[0004] The cable that supplies power to the comb-type or clamping tire-type intelligent carrier is retracted and unwound by a large-diameter reel installed on the carrier trolley. This device needs to be installed on the outer edge of the carrier trolley, and its principle is determined by the winding method. Because of its large radial size, it takes up a lot of space and is not beautiful

[0005] Currently commonly used cable reels, whether elastic cable reels, torque motor cable reels, or hysteresis cable reels, have large torque changes and poor synchronization when retracting and unwinding the cables, making the relevant parts of the cable reels easy to wear and have a short service life.

It is very important to keep the tension of the rolled cable constant during the winding process of the cable, because if the tension is too high, the wires of the cable will be thinned or even broken, and if the tension is too small, the winding will be loose, so it is necessary to uniform torque, even if the servo motor is used, since the output of the servo motor is a uniform rotation, it cannot meet the needs of constant torque

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