SU773200A1 - Unit for making built-in-place piles with expanded foot - Google Patents

Description

one

The invention relates to construction, in particular to installations used for the manufacture of ramming piles with a wider base.

A known installation for the manufacture of stuffed piles with a wider base, comprising a base machine with a frame, a percussion mechanism, a support plate 1.

The closest technical solution to the proposed one is a plant for the manufacture of rammed piles with a wide base, including, and a base machine with a frame, on the direction of which the casing and impact mechanism are installed, a support plate with a lifting and lowering mechanism 2.

The general lack of known settings is the transfer of dynamic loads during the operation of the impact mechanism to the installation itself.

The purpose of the invention is to prevent the transfer of dynamic loads acting on the installation during tamping.

This is achieved by the fact that in a plant for the manufacture of stuffed piles with a wide base, including a base machine with a frame, on the guides of which

a casing pipe and a percussion mechanism are installed, as well as a support plate with a lifting and lowering mechanism, a lifting and lowering mechanism of the support plate is made in the form of a hinged four-arm, a pair of links of which are pivotally connected to the base plate and the frame, the latter being connected to adjacent links made with grooves, by means of hydraulic cylinders, the rods of which are installed with the possibility of free movement in the grooves of the links.

FIG. 1 shows the installation, side view; in fig. 2 - the same, front view.

The installation for the production of stuffed piles with a broad base includes a base machine 1 with a frame 2, on fingers 3

Claims (2)

15 of which is mounted for movement of the guide frame 4, rigidly connected to the casing 5, hydraulic cylinders 6 for raising and lowering the casing installed on the frame 2 and connected through the polyspast system 7 to the casing 5, the base plate 8 connected to the frame 2 by means of two pairs, pivotally connected links 9 and 10, moreover, the links 9 adjacent to the frame 2 are formed with grooves 11. In addition, the frame 2 is additionally connected to the links 9 by means of hydraulic cylinders 12, the rods of which are installed with the possibility The movement in the grooves 11. On the base machine 1, there is also installed a winch 14, which through a troso-block system 15 is connected to a cross beam 16, on the hook 17 of which a rammer 18 is suspended, which can be moved along the guide frame 4. For orientation in a horizontal position, the base The machine 1 is connected to the frame 2 by means of a hydraulic cylinder 19. To use one hydraulic system, the hydraulic cylinders 6, 12, 19 are connected to the base machine 1 by means of hoses 20, 21, 22. The installation for the manufacture of ramming piles with a wide base works the following m way. The installation drives up to the well, and with the help of the hydraulic cylinder 19, the frame 2 is oriented over the well, as a result of which the casing 5 is established strictly the axis of the well. The cylinders 12 are lowered onto the ground by the support plate 8, while the rods 13 of the hydraulic cylinders 12 are moved in the slots 11 of the links 9 to position B. Then the hydraulic cylinders 6 through the polyspast system 7 are lowered into the well casing 5 and a portion of rigid concrete is fed into it. Winch 14 through the troso-block system 15 in the direction of the frame 4 rises up the yoke 16 with tamping 18 to the reflector 23 of the frame 4. When this hook 17 turns, tamper 18 breaks and falls down, press the concrete mix. When the winch 14 is turned on with rotation in the opposite direction, the traverse 16 lowers and hooks 17 to pick up the tamper 18. When the winch is raised, the tamping 18 rises and the cycle repeats until the concrete mix is completely knocked out of the casing 5. Then the casing 5 is removed by hydraulic cylinders 6 from the borehole, the hydraulic cylinders 12 raise the support plate 8, with the atom the rods 13 move in the grooves 11 of the links 9 to the position .A. The use of the proposed mechanism for raising and lowering the support plate in an installation for the manufacture of ramming piles prevents the transfer of dynamic loads to the installation, which significantly extends the life of the components of this installation. The invention The installation for the manufacture of rammed piles with a wider base, including a base frame with a frame, on the guides of which a casing pipe and percussion mechanism are installed, a support plate with a lifting and lowering mechanism, characterized in that, in order to prevent the transfer of dynamic loads acting on the installation during tamping, the mechanism for raising and lowering the supporting plai is made in the form of a hinged four-link, a pair of links of which are hingedly connected respectively to the support plate and frame, and Lednov connected with surrounding link means, with the grooves made by means of hydraulic cylinders, rods which are mounted for free movement in the slots of the links. Sources of information taken into account during the examination 1. USSR author's certificate No. 220856, cl. 84 5/40, .1966. 2. USSR author's certificate number 170397, cl. E 02 D 7/26, 1963.