RU149816U1 - DEVICE FOR CUTTING PILES WITH COMPONENT TEETH - Google Patents

Abstract

A device for cutting piles with composite teeth, comprising a housing, double-acting hydraulic cylinders, teeth attached to the hydraulic cylinder rod and the housing in the lower part opposite to each other in two axes, cutting surfaces of the teeth forming a cutting plane with an angle of 90-140 °, hoses for working fluid, connected to hydraulic cylinders, chains attached to the base from above, characterized in that each of the teeth consists of at least two parts, a carbide crown and a base consisting of several steel plates to prevent rapid wear of the teeth of the re-variable loads experienced by teeth device during operation, moreover, when worn only crowns must be replaced without dismantling the tooth crown of the tooth, only the base is subject to wear at the tooth root replacement.

Description

The utility model relates to construction equipment and can be used in the construction process to destroy the heads of concrete piles while preserving the reinforcement of the pile.

In practice, in construction, there is often a need to break the upper ends of piles buried in the ground while preserving the reinforcement for use when connecting it to the grill reinforcement.

Closest to the claimed utility model is a device for cutting piles presented on the pages of the site http://www.blijleven.info/, including a housing to the lower part of which cutting elements are fixed on hinges in the form of four monolithic teeth located opposite each other in two axes , the device also includes hydraulic cylinders hinged by one part in the upper part of the body, and the other part to the tooth.

The disadvantage of this device is the rapid wear of the teeth, due to their solidity, which leads to a decrease in the quality of the device itself, as well as a reduction in the useful life of the device, as well as an increase in the time required to replace and repair a worn tooth (www.blijleven.info) .

The problem to which the claimed utility model is directed is to increase the useful life, improve the quality of the device and reduce the time for repairing teeth.

Disclosure of a utility model.

The claimed problem is solved in that in a device containing a housing (1), double-acting hydraulic cylinders (2), teeth (3) attached to the cylinder rod and to the housing (1) in the lower part opposite each other in two axes, while cutting their surfaces form a cutting plane with an angle of 90-140 °, hoses (4) for the working fluid connected to hydraulic cylinders, chains (5) attached to the base from the top according to the proposed utility model, each of the teeth consists of at least two parts, a carbide crown (1) and base (2) consisting of several steel plates. Due to this design, the resistance to alternating loads that the teeth of the device experience during operation increases. In addition, when only the crown (1) is worn, only the tooth crown must be replaced without dismantling the tooth itself.

The technical result of the claimed utility model consists in the long operation of the teeth to wear, improving the quality of the entire device, reducing the time and labor for repair, increasing the useful life of the entire device.

In the drawing are indicated:

FIG. 1 is a schematic view from below of a device for cutting piles with composite teeth;

FIG. 2 is a schematic front view of a device for cutting piles with composite teeth;

FIG. 3 is a schematic view from above of a device for cutting piles with composite teeth;

FIG. 4 is a schematic representation of a right, bottom, front, top, left side view of a composite tooth;

FIG. 5 is a schematic view of views of the right, bottom, front, top, left of a composite tooth;

Designation of structural elements:

1 - housing;

2 - a hydraulic cylinder;

3 - tooth;

4 - hoses;

5 - chains;

6 - the base of the tooth;

7 - the crown of the tooth;

Implementation of a utility model.

The claimed device for cutting piles with composite teeth works as follows, the device using chains (5) and hoses (4) for the working fluid (Fig. 2) is installed on an excavator or lifting equipment, using an excavator or lifting equipment, hydraulic cylinders (2) they are brought into a compressed state so that the teeth (3) are diverged from the center, the device with holes in the housing (Fig. 1, 3) is put on the pile “head” so that the center of the device coincides with the center of the pile, the device is lowered along the pile to the desired cut mark,hydraulic cylinders (2) through the hoses (4), the working fluid is supplied under pressure, pushing the cylinder rod, thereby moving the tooth, which the crown (7) cuts into the body of the "head" of the pile, the cutting occurs evenly from four sides, forming a single cut plane, in During the cutting process, a crack forms on the pile head’s body, and further cutting pushes out the cut part, tears it off the pile reinforcing frame, then without spreading its teeth, the device transfers the cut pile “head” to the place intended for storing construction debris, hydro the cylinders (2) is brought into a compressed state so that the teeth (3) separated from the center and cut off the "head" of the pile is unloaded from the apparatus, then the device is set to the next pile head. The result is a cut “head” of the pile with the remaining reinforcement in its place. When the cutting surface of the carbide tooth crown is worn, it is replaced without removing the tooth from the device. When the tooth base consists of several steel plates, the tooth is removed and the tooth base is replaced.

Claims (1)

A device for cutting piles with composite teeth, comprising a housing, double-acting hydraulic cylinders, teeth attached to the hydraulic cylinder rod and the housing in the lower part opposite to each other in two axes, cutting surfaces of the teeth forming a cutting plane with an angle of 90-140 °, hoses for working fluid, connected to hydraulic cylinders, chains attached to the base from above, characterized in that each of the teeth consists of at least two parts, a carbide crown and a base consisting of several steel plates to prevent rapid wear of the teeth of the re-variable loads experienced by teeth device during operation, moreover, when worn only crowns must be replaced without dismantling the tooth crown of the tooth, only the base is subject to wear at the tooth root replacement.

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