TENSION SENSOR, MOMENT LIMITER, AND CRANE

摘要

A tension sensor comprises a barrel (1), a sealing partition plate (2), a connection portion (3), a hydraulic detection apparatus (4), and a calculation apparatus (5). The sealing partition plate (2) is disposed on the connection portion (3). The sealing partition plate (2) partitions the barrel into a first chamber (7) and a second chamber (8). The first chamber or the second chamber is filled with hydraulic oil. The hydraulic detection apparatus (4) is used for detecting the intensity of pressure of the hydraulic oil. The calculation apparatus (5) calculates the tension according to the intensity of pressure and the stress area of the first chamber or the second chamber. The present invention is a new tension sensor provided based on a new working principle, the tension sensor can replace a traditional sensor, and has the advantages that the tension sensor is simple to produce and manufacture, has low cost, and produces a small measurement error and the like, and is especially applicable to measurement of large load. The present invention also provides a moment limiter and a crane based on the tension sensor.