Measuring method for concrete slump
专利汇可以提供Measuring method for concrete slump专利检索，专利查询，专利分析的服务。并且PURPOSE: To measure a slump in the kneading of a concrete mixer which is driven by a hydraulic motor by comparing the variation pattern of the driving hydraulic pressure of the concrete mixer with the hydraulic pressure variation pattern of a known slump.
CONSTITUTION: The load torque when a kneading blade 2 is rotated by the hydraulic motor 3 is detected by detecting hydraulic pressure by a detector 7. An integral averaging circuit 10 inputs a rotation signal generated by a rotation detector 14 at every turn, and the integral averaging circuit 10 integrates and averages the hydraulic pressure variation at every turn on the basis of the rotation signal and outputs the mean hydraulic pressure value at every turn to a computing element 11. At a memory device 15, hydraulic pressure variation curves S
1 , S
2 , S
3 ... of respective slump values are inputted by a setter 17 and those curves S
1 , S
2 , S
3 ... are compared with detected SX to compute and display slump values on a slump display device 12. The display device 16 displays the curves S
1 , S
2 , S
3 ... and SX simultaneously.
COPYRIGHT: (C)1986,JPO&Japio，下面是Measuring method for concrete slump专利的具体信息内容。
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