The telescopic device comprises an output shaft and a transmission mechanism, the transmission mechanism comprises a transmission sleeve, a transmission outer ring, a transmission inner ring and a rotating body, one end of the transmission outer ring is provided with an annular mounting groove, the other end of the transmission outer ring is provided with an annular protruding part, and the annular protruding part is provided with a first internal thread; the transmission inner ring is arranged in the annular mounting groove, and the transmission inner ring and the transmission outer ring are rotationally matched through a rotating body; one end of the transmission sleeve is connected with the transmission inner ring, and a first guide key is arranged on the inner wall of the transmission sleeve; the output shaft is movably arranged in the transmission sleeve, a first guide groove matched with the first guide key is formed in the surface of the output shaft in the axial direction of the output shaft, and a first external thread is arranged on the surface of the output shaft. The output shaft is in threaded connection with the annular protruding part, the physical characteristic of self-locking when mechanical faults occur is achieved, the structure is simple and compact, the telescopic control precision is high, safety is good, the use cost is low, and high practicability is achieved.
本发明公开了一种伸缩装置,包括输出轴和传动机构,传动机构包括传动套筒、传动外圈、传动内圈和转动体,传动外圈的一端设有环形安装槽,传动外圈的另一端设有环形凸起部,环形凸起部设有第一内螺纹;传动内圈设置在环形安装槽内,且传动内圈与传动外圈之间通过转动体转动配合;传动套筒的一端与传动内圈连接,传动套筒的内壁设有第一导向键;输出轴活动设置在传动套筒内,输出轴表面沿其轴向开设有与第一导向键适配的第一导向槽,输出轴的表面设有第一外螺纹。本发明的输出轴与环形凸起部采用螺纹连接的方式,其拥有出现机械故障自锁的物理特性,而且结构简单紧凑,伸缩控制精度高,安全性好,使用成本低,具有较高的实用性。
Telescopic device
一种伸缩装置
18.11.2022
Patent
Elektronische Ressource
Chinesisch
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |