The invention discloses a jack with fine adjusting and locking functions, and belongs to the technical field of jacks. The jack comprises a piston rod, a guide sleeve, a retainer ring, reciprocating nuts, spring quick-release pins, screws, dustproof bearings and an outer barrel; the guide sleeve presses the retainer ring and is arranged on the outer barrel in a pipe thread sealing mode; the pistonrod is arranged in the outer barrel; the reciprocating nuts are arranged on the piston rod, screw holes are formed in the reciprocating nuts, the screws are arranged in the screw holes, and limitingholes are formed in the screw; the spring quick-release pins are arranged in the limiting holes; and the dustproof bearings are arranged on the inner sides of the reciprocating nuts in an interferencefit mode. According to the jack, stroke fine adjusting and reliable locking are integrated, and meanwhile the low cost, the high reliability and the high environment adaptability of equipment are achieved.
本发明公开了一种带有微调和锁止功能的千斤顶,属于千斤顶技术领域,包括活塞杆、导向套、挡圈、往复螺母、弹簧快卸销、螺钉、防尘轴承和外筒,所述导向套压住挡圈以密封管螺纹的形式安装到外筒上,所述外筒内设置有活塞杆,所述往复螺母安装到活塞杆上,所述往复螺母上设置有螺钉孔,所述螺钉安装在螺钉孔内,所述螺钉上设置有限位孔,所述弹簧快卸销安装在限位孔内,所述往复螺母内侧以过盈配合的形式安装有防尘轴承。本发明具有集行程微调和可靠锁止于一身,同时实现了设备的低成本、高可靠性、高环境适应能力。
Jack with fine adjusting and locking functions
一种带有微调和锁止功能的千斤顶
2020-07-14
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 |