The invention discloses a composite motion mechanism and a display screen module. The composite motion mechanism comprises a fixed frame, a rotating frame, a differential lead screw and a lead screw; the rotating frame is used for supporting a to-be-adjusted object, the to-be-adjusted object can be driven to rotate on the rotating frame, and the rotating frame is connected to the fixing frame in a lifting mode; the differential lead screw is connected with the fixed frame through a first thread pair and connected with the rotating frame through a worm and gear pair, and the differential lead screw is provided with an inner cavity. The lead screw is arranged in an inner cavity of the differential lead screw and connected with the differential lead screw through a second thread pair. After the object is driven to ascend, descend and rotate to a preset position, a mechanism gap is eliminated through the first thread pair and the second thread pair. Two-degree-of-freedom mechanical gap counteracting is achieved through the inner differential spiral lead screw and the outer differential spiral lead screw, the structure is stable and reliable, tiny shaking of the display screen caused by a transmission mechanism gap is avoided, and the stability of the display screen is fundamentally guaranteed.

    本发明公开了一种复合运动机构和显示屏模块。复合运动机构包括:固定架、旋转架、差动丝杠和丝杠;旋转架用于支撑待调整物体,待调整物体在旋转架上能够被驱动旋转,旋转架可升降地连接至固定架;差动丝杠与固定架通过第一螺纹副连接,与旋转架通过蜗轮蜗杆副连接,差动丝杠设置有内腔;丝杠设置在差动丝杠的内腔,与差动丝杠通过第二螺纹副连接;物体被驱动升降和旋转到预定位置后,通过第一螺纹副和第二螺纹副消除机构间隙。本发明通过内外差动螺旋丝杠实现双自由度机械间隙抵消,结构稳定、可靠,避免显示屏由于传动机构间隙而产生的微小晃动,从根本上保证显示屏的稳定。


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    Title :

    Composite motion mechanism and display screen module


    Additional title:

    复合运动机构、显示屏模块


    Contributors:
    PAN HAO (author) / XIAO GUANJIA (author) / ZHONG QUANSI (author) / ZHAO SHENGLEI (author)

    Publication date :

    2024-07-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16H Getriebe , GEARING / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / F16M Rahmen, Gehäuse oder Grundplatten von Kraftmaschinen oder anderen Maschinen oder von Apparaten, nicht auf eine besondere Art von Maschine oder Apparat eingeschränkt, die anderweitig vorgesehen ist , FRAMES, CASINGS, OR BEDS, OF ENGINES OR OTHER MACHINES OR APPARATUS, NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUS PROVIDED FOR ELSEWHERE



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