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Digital indicator, Absolute encoder, Jack, Gear reducer, Rotary encoder
Text version of the page
| Traveling nut type | Traveling jack type | |||||||||||||||||||||||||||||||||||
| If the upper and lower spaces are limited and if the full stroke is required, it is possible to rotate the lifting screw and lift the nonrotating nut. The lifting screw end is usually fitted with a radial bearing to prevent vibration. In the case of a long stroke, however, the use of a thrust bearing can prevent buckling because the lifting screw shaft is subjected to tensile loads only. jjj""1 | ||||||||||||||||||||||||||||||||||||
| If necessary by reason of the power unit, it is possible to set the screw jack to the structure to be lifted and fix the upper and lower ends of the lifting screw to the stationary structure. | ||||||||||||||||||||||||||||||||||||
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| y////////// | ||||||||||||||||||||||||||||||||||||
| Application example 2 | ||||||||||||||||||||||||||||||||||||
| The tourist boats navigating on the rivers in Osaka, the city of the waters, must naturally pass under many bridges. At full tide there is the fear that the tops of the boats may touch the bridge girders. The large and long top of each boat is enabled to ascend and descend by interlocking 8 traveling nut type screw jacks by a single motor. This is a good example of fully utilizing the self-locking and interlocking characteristics of the jacks under the condition of limited boat height. | ||||||||||||||||||||||||||||||||||||