DE2152170B2 - Liftable and lowerable tong crossbar - Google Patents

Description

The pivot lever 12 with the rollers 15 lift the traverse 1 from the slab or lower it onto it.

The creation of slack ropes in the hoist ropes by this additional device when lifting the traverse is known per se in steelworks crane construction Measures, e.g. B. by storing the bottom block rope rollers in swing, which in turn is about

horizontal axis

Measures also ensure that the Brammer is sown, even to whom. the latter are in an inclined position relative to the longitudinal axis of the slab.

1 sheet of drawings

Claims (2)

able sliding or rolling element provided pivot claims: hebeis is articulated. By the invention, the push rods 1 liftable and lowerable pincer crossbar, from and the swivel lever with the sliding or moving power shifter use pliers every two two-element-containing device wildly fine zuauarmige generates a horizontal axis swiveling movement that the movement of the pincer legs has, characterized ge spitzea when pivoting the pliers legs that is superimposed on the lower arms and coordinated so that the pliers (5) of the pliers legs (3) move from at least awei genspitzen on a horizontal path. As a result of the pliers (2) each one push rod (10) auge- io the horizontal pliers tip path loads can be steered, the free end of which with the upper arm with small thickness dimensions is then safely ill) a pivotable. the traverse (1) can be quickly grasped and picked up when a horizontal axis (13) parallel to the pivot axes (4) of the pliers tips a relatively long distance to the pliers limb (3) is in contact with the load,
In a further refinement of the invention, a sliding or rolling element which can be transferred to the load is used as a swiveling lever (12) rotatable around a horizontal axis. connected is. In. in this context it is noted that 2. Pliers cross member according to claim 1, characterized by rolling elements in the form of a horizontal one characterized in that a roller rotatable about ao axis with pincer-like gripping means as a rolling element horizontal axis rotatable roller (15) is used. directions are known. An exemplary embodiment of the invention is shown schematically in the drawing. It shows Fi g. 1 is a side view of the tong crossbar The invention relates to a lifting and. as Lowerable pliers crossbar, of which the force-locking ^Fi S ·. ^{2 shows a} section through one of the pliers according to FIG the forceps every two two-armed, around one horizontal line I-I in Fig. 1. has pivotable pliers legs on the right axis. On one (via ropes not shown) lift and In the case of such a known tong crossbar, which can be lowered on a (also not shown) write the tips of the tong legs on the 30 tong crane suspended traverse 1 are several pivot a circular path. Are the pliers with (e.g. two, four or six) force-locking Zanmaximal opened pliers legs over the up 2 arranged. Each pair of pliers 2 consists of two two-picking Load lowered, then! Loads can be handled with armed pliers legs 3, each hovering around one level Thickness dimensions and relative to the right axis 4 pivotable on the traverse 1 gemaximalen Pliers tip width greatly reduced 35 are stored. The lower arms 5 of the pincer widths cannot be picked up from the hallway. kel 3 have contact surfaces, which by means of an intermediate It is also a pair of pliers arranged around a horizontal axis and arranged to see the upper arms 6 of the pliers legs pivotable pliers legs having pliers; 7 against which a load, in particular a thin slab 17, which can be placed on the load, is pressed against two of the lower arms of the tong legs; known to open the pliers legs 3 steered tabs. Apart from that, the usual device 9.
These pliers are self-closing, the device known on the lower arms 5 of the pliers legs 3 also does not achieve a horizontal path of two - preferably the two outermost of the plier tips. - Pliers 2 each have a push rod 10 articulated, Finally, a pincer-like gripping front 45 whose free end is connected to the upper arm 11 of a double Direction known with a traverse, to which two armed pivot lever 12 is connected. the two-armed gripping legs each around a horizontal pivot lever 12 are each around a horizontal axis Axis are pivotably articulated. This known, 13 pivotable on the lower part of the traverse 1 however, also self-closing gripping device stored and have on their lower arms 14 each has a roller 15 that can be placed on the (to be picked up) load. The horizontal axes 13 of the Sliding or rolling elements on. These only serve to pivot levers 12 to the horizontal axes 4 to prevent the pliers legs from slipping parallel to the plates to be transported, to secure. The from the push rods 10 and the pivot The invention is based on the object of lever 12 existing additional device is so made of pliers traverse of the type mentioned in such a way 55 that the movement of the pliers legs 3 to further develop that so that even small thicknesses - the axes 4 each have such a large additional dimensions Loads are even superimposed on the movement so that the pliers tips can be picked up when the horizontal tip path describes when closing.
Process of the pliers covered pliers tips- The operation of the pliers travel according to the invention is relatively long. 60 traverse is the following: According to the invention, this object is achieved as a result solves that on the lower arms of the pliers legs open on the on the Hüttenvon At least two of the tongs each have a sliding floor 16 located thin slab 17 lowered. Sostange is articulated, the free end of which will then overburden the pliers legs inward Arm of one pivotable on the traverse by 65 pivots until they rest against the slab. While a horizontal, to the swivel axes of the tongs - this swiveling process will be - depending leg parallel axis supported, two-armed from the one covered by the pliers tips and with a touchdown on the load to be taken - the push rods 10 actuated, which on the