The invention discloses a measuring device for a rudder open water test, which comprises a support, the top end of the support is fixed on a pool trailer, a stepping motor is fixed in the middle of the support, the lower end of the support is connected with a wave suppression plate, the lower end of the wave suppression plate is connected with a flow guide section, and an output shaft at the lower end of the stepping motor is connected with the upper end of a balance tail rod through a coupler. The lower end of the balance tail rod sequentially penetrates through at least one bearing, the wave suppression plate and the flow guide section and is connected with one end of the force measuring balance; each bearing is fixed on the bracket through a bearing seat; during testing, the other end of the force measuring balance is inserted into the rudder model, and the center of the force measuring balance coincides with the stress center of the rudder. The stepping motor rotates to drive the coupler, the balance tail rod and the force measuring balance to rotate together, and then the rudder is driven to rotate. The device is exquisite in conception, simple in structure, excellent in processing performance and high in operability, lays a foundation for a rudder open water test, and improves the hydrodynamic performance measurement precision of the ship rudder.
本发明公开了一种用于舵敞水试验的测量装置,包括支架,支架顶端固定在水池拖车上,支架中部固定有步进电机,支架下端连接压浪板,压浪板下端连接有导流段,步进电机下端的输出轴通过联轴器与天平尾杆上端连接,天平尾杆下端依次穿过至少一个轴承、压浪板和导流段,并与测力天平一端连接;每个轴承分别通过一个轴承座固定在支架上;试验时,测力天平另一端插入舵模中,测力天平的中心与舵受力中心重合;步进电机转动带动联轴器、天平尾杆和测力天平一起转动,进而带动舵转动。本发明的构思精巧、结构简洁、工艺性能优良、可操作性强,奠定了舵敞水试验的基础,提高了船用舵水动力性能测量精度。
Measuring device for rudder open water test
一种用于舵敞水试验的测量装置
2024-02-27
Patent
Electronic Resource
Chinese
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