Stroke measuring device for long-distance cable

Abstract

The invention relates to the technical field of measuring equipment, and discloses a stroke measuring device for a long-distance cable; the device comprises a cable winding box, a winding wheel is arranged in the cable winding box, a to-be-measured cable is wound around the outside of the winding wheel, and two guide rods are arranged on the inner wall, close to the winding wheel, of the cable winding box. A limiting block is arranged at the end, close to the winding wheel, of the guide rod, a spring clip is arranged at the other end of the guide rod, a cam is movably connected to the left end of a rotating shaft of the winding wheel, a plurality of rollers are evenly distributed outside the cam, the rollers are sleeved with flexible gears, and low-speed sleeves are arranged outside the flexible gears. According to the stroke measuring device for the long-distance cable, mechanical counting is carried out after stroke speed reduction of the high-speed reel is carried out in a very small space through the harmonic speed reduction principle, the structure is stable, the service life is long, and compared with traditional non-contact counting equipment, the stroke measuring device is not limited by a special working environment and is wide in application range.

Description

technical field [0001] The invention relates to the technical field of measuring equipment, in particular to a travel measuring device for long-distance cables. Background technique [0002] In the process of erecting power transmission lines, extra-long cables are often required. In order to ensure the length and quality of long cables, it is necessary to measure their length. This measurement is often fast and has a long stroke. Rotate, complete the winding and measure at the same time, the friction between the device and the equipment will generate a lot of heat, the traditional mechanical measuring device often suffers from thermal balance instability due to the high-speed rotation of the measuring device, resulting in equipment damage or measurement errors, so it is gradually used in many places Optical or electronic measuring devices measure the number of turns of the winding roller in a non-contact manner to calculate the stroke, which can effectively reduce the heat ...

AI Technical Summary

Problems solved by technology

[0002] In the process of erecting power transmission lines, extra-long cables are often required. In order to ensure the length and quality of long cables, it is necessary to measure their length. This measurement is often fast and has a long stroke. Rotate, complete the winding and measure at the same time, the friction between the device and the equipment will generate a lot of heat, the traditional mechanical measuring device often suffers from thermal balance instability due to the high-speed rotation of the measuring device, resulting in equipment damage or measurement errors, so it is gradually used in many places Optical or electronic measuring devices measure the number of turns of the winding roller in a non-contact manner to calculate the stroke, which can effectively reduce the heat generation, but the service life of the equipment is generally short, and it cannot replace the function of mechanical instruments in special environments

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