SU685831A1 - Poweder pressure-form for erecting monolithic vault-type roof support - Google Patents

Description

I

The invention relates to mining, in particular to mechanized formwork for the construction of monolithic floor-reinforcement icpeoH in the pre-launch telings of the mining industry and can be used in industrial and road construction.

A device is known for erecting a national team that has been compressed into a rock lining, comprising a ring-conductor I with the direction of the Scrolls and ynopuvsi for supporting the elements of the lining and filter chains 1.

The disadvantage of this device is the impossibility of erecting monolithic lining without contact with the rock contour.

The closest in technical essence is a sliding formwork for the erection of a monolithic I press-concrete fastener, which includes the forming and supporting parts, elastic elements, the shifting mechanism, and the sleeves 2 supplied by the concrete.

The disadvantages of this device include the laboriousness of the process of stripping and the increased consumption of concrete.

The purpose of the present invention is to facilitate the removal of the formwork.

Delivered to those that support the mechanized press formwork, provide the force of the joint with the stem of the advancement jacks with the pulleys and pulleys with rollers, interacting with the inner surface of the pressing part.

On t. 1 - {hollow section of formwork; in fig. 2 - view A of FIG. one; Ab FIG. 3 is a view of node 1 of FIG. 2

Claims (2)

The mechanized} press formwork for the construction of a vaulted monolithic crepe consists of pressing 1 and supporting 2 parts, sealing bush 3, jacks for shifting 4, running wheels 5, feeding sleeves b, inflatable elements 7. Running wheels 5 of pressing mold 1 of formwork installed with the help of springs 8 and lever 9 in such a way that it provides their plane-parallel movement relative to the sides of the pressing part 1. The sealing sleeves 3 are located on the supporting part 2 of the formwork, and the inlet sleeves 6 and the split pads 7 p. vnomerno on the outer surface of the pressing portion. The jacks of the shifter 4 are evenly spaced around the perimeter of the formwork and pivotally connect the pressing 1 and supporting 2 parts of the formwork, while the rods of the jacks 4, by means of the rocker arm 10, the rod 11 with the mold 12, the pusher 13 with the roller 14, interact with the inner surface of the pressing part 1 formwork Mechanized press formwork works as follows. The pressing part of the formwork is installed above the supporting part. Concrete is injected into the volume formed by parts 1 and 2 of the formwork, by the sealing tire 3 and the end of the previously reinforced construction support. During this period, the inflatable elements 7 work with minimal resistance, and a gap is formed between the roller 14 and the inner surface of the pressing part 1 of the formwork. By the magnitude of this gap and the resistance of the elements 7 to compression, the degree of injection of concrete is monitored. After the completion of the process of injecting concrete, element 7 will compress the concrete at the maximum possible value. As the concrete gains strength, it is under pressure. Then remove the load from the inflatable elements 7 and jacks shifter 4 include an increase in length. Pushing out 1 of the jacks 4 in the initial period rotates the rocker arm 10 and sets the rod 11 with the piece 12 in motion. The curve 12 of the pattern 12, interacting through the pusher 13 and roller 14 with the inside surface of the formwork part 1 of the formwork, makes tearing off parts 1 and 2 of the formwork from concrete. Subsequently, the jacks 4 push the pressing part 1 of the formwork into the position for the next concreting. After this, the fixing space is packed by means of the supply sleeves 6. At the end of the filling process, inflatable elements 7 create a weigth above the pressing part of the formwork, and jacks of the slide 4 pull the supporting part of the formwork. It should be noted that the injection of concrete is carried out with the operating position of the tire 3, and the movement of parts 1 and 2 of the formwork when idle. The mechanized press formwork facilitates the processes of opening the gap and filling in the fixed space, allows the construction of a lightweight monolithic press-concrete lining with a high bearing capacity and a two-layer monolithic pliable lining, which makes contactless with the breed contour. The use of mechanized formwork will also significantly reduce the consumption of concrete. Claims of the invention: Mechanized press formwork for the erection of vaulted monolithic lining, including supporting and pressing parts, inflatable elements, advancing jacks and concrete sleeves, characterized in that, in order to facilitate the process of disassembling, the supporting part of the formwork is fitted with connected rod stocks, and rocker arms, rods with patterns and pushers with rollers interacting with the inner surface of the pressing part. Sources of information taken into account in the examination 1. The author's certificate of the USSR N 369212, cl. E 21 O 11/40, 1971. 2. Authors svdedelstvo USSR N 282390, cl. E 21 D and / 40. 1969. (noSfpnt / nryo} hl2.3