SU143526A1 - Folding gantry crane - Google Patents

Description

Folding gantry cranes are known, consisting of supports and a superstructure with a cargo trolley, which, when the crane is folded, moves relative to the supports on carriages that are hinged on the superstructure. In the working position, one of the carriages is rigidly fixed to the superstructure. When such cranes are folded, the height of the supports remains constant.

To accommodate this drawback, each of the supports of the described crane is made of two legs supported on the traveling wheels and the legs. The lower end of the stand is connected by means of hinged figured tg to the middle part of the legs, the upper ends of which are pivotally connected to a slider moving in the slot of the stand. In order to fasten the stand in the upper extreme position, the figured bolts are bolted to the legs.

FIG. 1 shows the proposed crane in the working position; in fig. 2 - the same, side view; in fig. 3 - crane support in the folded position; in fig. 4 - specks with lowered span; in fig. 5 - folded crane in the transport position.

The described gantry crane consists of supports / and 2, interconnected by a span 3. The carriages 5 and 7, which can move along the supports / and, are attached to the span of the hinges 4 and 5. on rollerskates. The carriage 7 in the working position of the crane is fixed on the superstructure rigidly connected 8. A cargo trolley 9 moves along the superstructure. Each support is made of two legs 10 supported on the driving wheels //. The lower part of the support stand is connected to the middle part of the legs 10 with hinged figured rods 12. The upper ends of the legs are pivotally connected to the slider 13, moving in the notch of the support stand. When the crane is working, the stand in the upper extreme position is rigidly bolted with legs 14. .

 143526 2 # With skl, c {lvanii crane, span structure 3 is lowered and supported with fta 1vijiro tilting supports i5. After that, the bodits 14, -} 3 are removed, and the support 16 is disconnected from the support 16, and the support is cleaned while lowering the frame; fold until the slider 13 rests against the stop 17. After this, the span structure is raised, the stops 15 are moved to the mountain position, and the span structure is lowered onto T ;; iaHcnopTHj3iH. turning relative to the hinge 4, put it in a horizontal position on the superstructure. Having disconnected the connection 8 and turning the support 2 relative to the hinge 5, they also put it in a horizontal position on support 1. There is a support platform on the I-pillar, under which the vehicle wheel is mounted under its saddle. After cleaning the jack 19, the crane in the folded position is ready for transportation.

The transfer of the crane from the transport to the working position is in the order of reverse folding.

If it is required to move the valve a short distance, for example a parallel path, it is not necessary to fully fold it. It is enough to lower the superstructure on the slopes and raise the traveling wheels, after which the crane can be transported by a winch.

The All-Union Scientific Research Institute of the Lifting and Transport Machinery in its conclusion notes that the crane of the proposed design provides ease of construction and can be quickly assembled and dismantled in a small area.

Subject invention

The folding gantry crane, consisting of the supports and the superstructure with a cargo trolley, which when the crane is folded, is agitated relative to the supports on the carriages fixed by the articulated span, and in the working position one in order to reduce the height of the supports in height, each of the supports is made of two legs resting on the running wheels and a stand, the lower end of which is connected to the middle part of the legs by means of hinged figured t tzu leg pivotally connected to the slider, the moving rack in the slot; for fastening the stand in the upper extreme position, the figured bolts are bolted to the legs.