DD141818A1 - ZANGENHUBEINRICHTUNG WITH MULTI-LINE CABLE ASSEMBLY AND PENDELARMER LASTFUEHRUNG - Google Patents

Abstract

The invention relates to pincer lifting devices which predominantly for the transport of slabs in steel works and of large blocks are used in concrete works. Object of the invention is to arrange the winch to open the pliers so that a low cost of technical means and 'a better one Maintenance option is achieved. The object is that the Mass of the winch from the hoist is not to move and the Cable guides are to be compensated so that a horizontal Closing the pliers is achieved. The task is solved by on the platform of a trolley a winch to open the pliers is arranged and from the windmill drum outgoing ropes under the Same angles as the suspension cables over pulleys and pulleys led to the hoist drums. By the arrangement of the same Rope geometry of Windwerksseiles.und the suspension cables in conjunction with the same rope speed is a horizontal closing the pliers achieved an accurate and secure load bearing guaranteed.

Description

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Title of the invention

Pliers lift inrichting 'with multi-stranded cable arrangement and low-swing load guidance

Field of application of the invention

The invention relates to a Zangenhubeinrichtüng with more -strängiger rope assembly and low-swing load guide, mainly for use as metallurgical cranes for the transport or repositioning of slabs and for the transport or for the implementation of concrete parts, especially in concrete works,

Characteristic of the known technical solutions

There are known Zangenhubeinrichtungen with multi-strand cable arrangement and pendelarmer load guide, in which the wind work to open the pliers or, the hydraulic device for closing and opening the pliers are arranged on the Zangentraverse. These designs are reliable, but have the disadvantage that the entire mass of arranged on the Zangentraverse windmill or the hydraulic device must be included as a lifting load in the calculation and thereby greater material costs for the hoist and for the steel structure of the crane require. In addition, for the control of arranged on the Zangentraverse windmill or the hydraulic device, the electric power to lead via cable drum or cable basket. In addition, the accessibility and V / artungsmöglichkeit is considerably limited in these embodiments.

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Aim of the invention

The aim of the invention is to make the components of the hoist and thus the steel structure of the crane easier to reduce the cost of electrical equipment and to improve the maintenance and repair options.

Explanation of the essence of the invention

The invention has as its object to provide a Zangenhubeinrichtung with multi-strand cable arrangement and pendelarmer load management, in which the wind work to open the pliers is arranged so that the mass of the windmill from the hoist is not to move, the cable guide of Y / indwerkes to To open the tongs in conjunction with the multi-stranded mutually braced support cables of the hoist is to compensate so that a horizontal closing operation is achieved and the accessibility .Webwerkes is designed to open the pliers cheaper.

According to the invention, this object is achieved in a Zangenhubeinrichtung with multi-strand cable arrangement and pendelarmer load guide, that is arranged on the platform of a trolley, a winch to open the pliers with a windmill drum and outgoing from the windmill drum ropes at the same angles as the supporting cables over Pulleys or a lower block and pulleys are guided and can be wound up or unwound from a hoist on hoist drums simultaneously with the support cables, the rope speed of the support cables and the windlass cables to open the pliers, by the dependence on rated engine speed and transmission-actual translation of the Drives and drums!

is large, so that there is a horizontal closing, with low angular deviations is compensated by changes in height of the lower block by the arranged between the lower block and the control traction member.

The individual punctures of the pliers, the opening and closing, done once by the synchronous cooperation of both drives and on the other by the separate operation of a drive.

The pliers are closed by the simultaneous startup of the hoist drive in the direction of lifting and the winch drive to open the pliers in the direction of lowering.

The control beam remains in the same position, the forceps arms move around''hre hinge points, so that the clamping process is initiated. After the occurrence of the clamping process, the tension between the sub-bottle or, the pulleys and the control cross member, z. As rope or chain, flaccid, which requires the shutdown of the winch to open the pliers.

embodiment

The invention will be explained in more detail below using an exemplary embodiment. In the accompanying drawing show:

Fig. 1 The parallel cable guide of Windwerkseile and der'Tragseile with the front view of the pliers

Fig. 2 The leadership of Windwerkseile and suspension cables in the other plane with the side view of the pliers

On a platform of a trolley 1 is a winch 2 for opening a pair of pliers 3 with a winch drum 4 and a hoist 5 with a few hoist drums. 6

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arranged. From the winch drum 4 ropes 7 are guided with the angles <* -ß on a lower block 8 and pulleys 9 to the hoist drums 6 of the hoist 5. The same angles <* _t β , which change constantly as a function of the lifting height, have the supporting cables. On the lower block 8, a chain 10 is suspended with the control beam 11. The support cables run over pulleys, which are arranged movably on a clamp frame 12. On the forceps frame 12, the forceps 3 is attached.

The operation of the forceps lifting device is such that the forceps 3 is moved over the part to be transported, slab or block, and the forceps 3 is lowered with the forceps frame 12 by the hoist 4. At the same time, the wound on the Hubwerkstrommeln 5 ropes 6 are handled by it. During this operation, the wind work rests 2. By simultaneously turning the hoist 5 in the direction of lifting and the wind work 2 in the direction of lowering the control beam 11 remains under the condition of the same speed of the rope windlass 6 and the suspension cables in the same position, ie without change in location, and only the pliers legs of the pliers 3 move around their hinge points, so that the clamping process is initiated. After the occurrence of the clamping process, the chain 10 is flaccid, and the wind work 2 for the opening of the pliers 3 must be turned off. This is the lifting only from the hoist 4 », The lowering and opening of the pliers 3 happens in the xm-. swept order. After the load has arrived at the destination, the load is lowered by the lowering movement of the hoist 4. In this operation, the windmill 2 is to settling at rest, and only after weaning the hoist 4 is turned off and the windmill 2 is turned on to open the pliers 3, With the winch '2, the control beam 11 is raised and the pliers legs of the load solved and the pliers 3 opened,. ·

Claims (1)

-206197 invention claim Tongshubeinrichtung with multi-strand cable arrangement and low-swing load guide, characterized in that on the platform of a trolley (1) a winch (2) for
Opening the pliers (3) with a winch drum (4) is arranged to depart from the ropes (7), which under the
equal angles (° t- / 3 ) as the support cables on pulleys (8) and pulleys (9) are guided to Hubwerkstrommeln (6) and by a lifting gear (5) on the Hubwerkstrommeln (6) simultaneously with the support cables or unwound are, with the rope speed of the cables (7) and the support cables is the same size. Pincers lifting device according to item 1, characterized in that angular deviations of the cables (7) to the support cables
compensated by a pulling member (10). Pages drawings