A multi-stage oil cylinder comprises a fixed cylinder barrel (2); at least one movable cylinder (3) which can be extended relative to the fixed cylinder (2); the piston rod (4) can extend out relative to the movable cylinder barrel (3); the outer sleeve (5) is fixed at the top end of the piston rod (4); wherein a rod head (11) is welded at the top end of the piston rod (4), a top plate (10) is welded in the top end of the outer sleeve (5), a flange nut (12) is combined with the rod head (11) through thread engagement and is combined with the top plate (10) through a screw (13), and a positioning pin (15) for preventing the flange nut (12) and the rod head (11) from rotating relatively is arranged between the flange nut (12) and the rod head (11). The connection strength and rigidity between the piston rod and the outer sleeve are improved, and the outer sleeve can be prevented from loosening.
一种多级式油缸包括:固定缸筒(2);相对于固定缸筒(2)可伸出的至少一个移动缸筒(3);相对于所述移动缸筒(3)可伸出的活塞杆(4);以及固定在活塞杆(4)顶端的外套筒(5);其中,所述活塞杆(4)的顶端上焊接有杆头(11),所述外套筒(5)的顶端内焊接有顶板(10),一法兰螺母(12)通过螺纹啮合与杆头(11)组合在一起、且通过螺钉(13)与顶板(10)组合在一起,并且法兰螺母(12)与杆头(11)之间装有防止二者相对转动的定位销(15)。活塞杆与外套筒之间的连接强度和刚度得到提高,并且可避免外套筒松动。
Multi-stage oil cylinder
多级式油缸
2022-04-22
Patent
Electronic Resource
Chinese
IPC: | F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS / F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile |