PL71606B2

PL71606B2 -

Info

Publication number: PL71606B2
Application number: PL15053571A
Authority: PL
Priority date: 1971-09-16
Filing date: 1971-09-16
Publication date: 1974-06-29

Description

Nastepnie nakretke kulkowa 47 laczy sie za pomoca czopów nosnych 46 w zaglebieniach 73 górnej czesci ramion 23, które zabezpiecza sie przed wypadnieciem za pomoca zapadek 24, odchylnych srub 25 i nakretek z dzwigniami 26. Tak przygotowana do podniesienia konstrukcje 8 podnosi sie za pomoca podnosnika 1, któiy powoduje obrót tej konstrukcji wzgledem osi 62. W pierwszym etapie obraca sie konstrukcje 8 o okolo 90° tak, ze otwoiy 37 dzwigara pomocniczego 3 pokrywaja sie z otworami 41 w uchach 40 i wówczas laczy sie je sworzniem 4, a nastepnie wyjmuje sie sworzen 5 z otworów 31 i 36. Od tej chwili konstrukcja 8 jest zawieszona juz bezposrednio za pomoca dzwigara pomocniczego 3 na podstawie wsporczej 7.W drugim etapie nastepuje podniesienie ramy nosnej 2 przez obrót tej ramy za pomoca podnosnika z jednoczesnym sprowadzeniem nakretki kulkowej 47 do polozenia górnego. Podniesiona przez obrót rama nosna 2 wchodzi swym rozwidlonym wierzcholkiem ramionami 23 miedzy ucha 50 ijest laczona wyjetym sworzniem 5 za pomoca otworów 51 i 30, po czym nastepuje wyjecie sworznia 6 i rozlaczenie jednego konca dzwigara pomocniczego 3 z podnoszona konstrukcja antenowa. Po wykonaniu wyzej wymienionych czynnosci nastepuje dalsze podnoszenie przez obrót konstrukcji 8, do momentu polaczenia jej obiema czesciami 54 i 55 zamków 53.Opuszczanie konstrukcji 8 odbywa sie w sposób odwrotny do wyzej opisanego. PL PLNext, the ball nut 47 is connected by means of bearing pins 46 in the recesses 73 of the upper part of the arms 23, which are secured against falling out by means of pawls 24, tilting bolts 25 and nuts with levers 26. The structure 8 prepared for lifting is then lifted by means of a jack 1 which causes rotation of this structure with respect to the axis 62. In the first stage, the structure 8 is rotated by about 90 ° so that the openings 37 of the auxiliary beam 3 coincide with the holes 41 in the lugs 40 and then they are connected with the pin 4, and then the pin is removed. 5 from the openings 31 and 36. From now on, the structure 8 is suspended directly by means of the auxiliary beam 3 on the support base 7. In the second stage, the carrying frame 2 is raised by rotating this frame with the aid of a jack, simultaneously bringing the ball nut 47 to the upper position . The lifting frame 2 raised by rotation enters with its bifurcated top of the arms 23 between the lugs 50 and is connected with the removed pin 5 through holes 51 and 30, after which the pin 6 is removed and one end of the auxiliary spar 3 is disconnected from the lifting antenna structure. After the above-mentioned operations have been performed, the structure 8 is further lifted by turning it, until it is connected by the two parts 54 and 55 of the locks 53. The lowering of the structure 8 takes place in a reverse manner to that described above. PL PL

Claims

1. Claims 1. A frame-screw jack with a support base and a screw jack mounted on it, characterized by the fact that it is made of a support frame (2) made in the form of an isosceles triangle, the base peaks of which are provided with lugs (21), and the top the upper one is bifurcated in the form of two arms (23), but the carrying frame (2) is articulated with the brackets (43) by means of the lugs (21), which are permanently attached to the supporting base (7), while in the bifurcated arms (23) there are depressions (73), round holes (31) and oval holes (30), with the bifurcated arms (20) of the frame (2) articulated with an auxiliary beam (3), the upper end of which is also forked and provided with lugs (34) with oval holes (36 and 37) and the free (lower) end (33) is provided with a hole (35) to engage the lifting element (8), while the upper forked end (23) of the frame (2) is also articulated with the ball nut (4 7) of the screw jack (1), with the help of pins (46) and recesses (73), provided that the lugs (40) with holes (41) are attached to the support base (7) for the jack screw (1). for bolt connection with the holes (37) of the auxiliary girder (3) in its temporary position, i.e. after 1/4 turn of the lifted structure (8) (about 90 °), while the jack screw (1) is moved by the drive mechanism electric (16) from the control box (9) and the manual drive (crank) (13).

2. Frame-screw jack according to claim A device as claimed in claim 1, characterized in that the control box (9) of the electric drive (16) is placed in a recess of the support base (7) and a shielded plate (59) which is slid along the wall (74) parallel to the output shaft (77) of the manual (crank) ) (13), located next to the control box (9), so that when the plate is moved, it covers the end of the roller (77), making it impossible to install the crank when the electric drive is on. Kl.35d.il/02, 71606 MKP B66f 11/02 % / Fig. ZKl.35d.il/02 71606 MKP B66f 11/02 61 IB 58 XH // 74 and Fig. 4KI. 35d, 11/02 71606 MKP B66f 11/02Kl.35d.il / 02 71606 MKP B66f 11/02 i7, 34 66 \ ED 57_i_, JL JL: '¦ 77 5; B-B% ¦ io 77 feirv Tm Ti / j / J jl i, ^ l ^ j% // • 56 \ 58 EN EN