RU201332U1 - Pile driver - Google Patents

Abstract

The utility model relates to construction and can be used in the manufacture of reinforced concrete foundations of engineering structures, for immersion and extraction of metal pipes, shell piles, prismatic reinforced concrete piles, as well as for creating pile fields of solar power plants and installing individual elements of transport infrastructure. reliability of the device and productivity of drilling and pile driving. A pile driver is proposed containing a central frame, a tracked chassis, a mast, a driving percussion block equipped with a hydraulic hammer, installed with the ability to move along the mast, and devices for moving the percussion block. In addition, the hydraulic hammer is made of a membrane type with the supply of hydraulic fluid from a gear pump, and the device for moving the impact unit is made in the form of a hydraulic multiplier consisting of a hydraulic cylinder with a double-sided rod, pulley blocks and a plate chain mounted on a mast; the central frame is equipped with a pivot frame, on which a mechanical orientation system in space is hinged, including a mast, an u-shaped frame on which hydraulic cylinders are mounted for tilting the mast left-right, moving the mast parallel to the chassis and tilting the mast back and forth. The center frame is crawler-based and equipped with a diesel engine, hydraulic and fuel tanks, operator station and pile driver control levers, while the swing frame is connected to the center frame via a slewing ring.

Description

The utility model relates to construction and can be used in the manufacture of reinforced concrete foundations of engineering structures, for immersing and extracting metal pipes, shell piles, prismatic reinforced concrete piles, as well as for creating pile fields for solar power plants and installing individual elements of transport infrastructure.

Known pile driving machine and a method of driving pile elements into the ground (see the invention of the Russian Federation No. 2633454, IPC E02D 7/10, E21B 7/02, publ. 12.10.2017), containing a mast, a driving impact block installed with the ability to move along a mast, a main winch with a main cable attached to the impact block to move the impact block along the mast, an auxiliary winch with an auxiliary cable guided along the mast and configured to be attached to the pile element to be driven, and the auxiliary winch provides the ability to raise the pile element to be driven from a lying position to an approximately vertical driving position. The main winch and the auxiliary winch each contain a hydraulic motor, and the controls are configured to control the supply of hydraulic fluid to one of the hydraulic motors or to both hydraulic motors to set the downforce.

The reasons that impede the achievement of the technical result indicated below when using the known device include the fact that in the known device cable winches are used as traction mechanisms, which complicate the design of the piling machine and reduce the reliability of the machine as a whole.

The essence of the proposed device lies in the fact that the hydraulic hammer is made of a membrane type with the supply of hydraulic fluid from a gear pump, and the device for moving the impact unit is made in the form of a hydraulic multiplier, consisting of a hydraulic cylinder with a double-sided rod, pulleys and a plate chain mounted on a mast; the central frame is equipped with a pivot frame on which a mechanical orientation system in space is hinged, including a mast, an u-shaped frame on which hydraulic cylinders are mounted for tilting the mast left-right, moving the mast parallel to the chassis and tilting the mast back and forth. The center frame is tracked and equipped with a diesel engine, hydraulic and fuel tanks, operator station and pile driver control levers, while the swing frame is connected to the center frame by means of a slewing ring.

The technical result of the invention is to improve the reliability of the device and the productivity of drilling and piling.

The specified technical result in the implementation of the utility model is achieved by the fact that the pile driver comprises a central frame, a caterpillar chassis, a mast, a driving shock block equipped with a hydraulic hammer, installed with the ability to move along the mast, devices for moving the shock block.

The peculiarity lies in the fact that the hydraulic hammer is made of a membrane type with the supply of hydraulic fluid from a gear pump, and the device for moving the impact unit is made in the form of a hydraulic multiplier, consisting of a hydraulic cylinder with a double-sided rod, pulleys and a plate chain mounted on a mast; the central frame is equipped with a pivot frame on which a mechanical orientation system in space is hinged, including a mast, an u-shaped frame on which hydraulic cylinders are mounted for tilting the mast left-right, moving the mast parallel to the chassis and tilting the mast back and forth.

The center frame is tracked and equipped with a diesel engine, hydraulic and fuel tanks, operator station and pile driver control levers, while the swing frame is connected to the center frame by means of a slewing ring.

The analysis of the state of the art carried out by the applicant, including a search for patents and scientific and technical sources of information and the identification of sources containing information about analogues of the claimed utility model, made it possible to establish that the applicant did not find an analogue characterized by features identical to all essential features of the claimed utility model.

Consequently, the claimed utility model meets the "novelty" condition.

The design of the invention is shown in the figures.

FIG. 1. Side view in transport position.

FIG. 2. Top view in transport position.

FIG. 3. Frontal view in working position (with options for extending the mast and lifting the driven impact unit).

FIG. 4. Frontal view in working position (with the option of tilting the mast back and forth.

FIG. 5. Side view in working position (with the option of tilting the mast left-right.

The pile driver consists of a central frame 1, a swing frame 2, a caterpillar chassis 3, a mast 4, a driving impact unit 5 equipped with a hydraulic hammer 6, a hydraulic multiplier consisting of a hydraulic cylinder 7 with a double-sided rod, chain hoists 8 and a plate chain 9, a hydraulic cylinder 10 of a forward tilt back of the mast, the hydraulic cylinder 11 of the extension of the mast, the hydraulic cylinder 12 of the tilt to the left and the right of the mast, the hydraulic tank 13, the gear pump 14, the diesel engine 15, the control levers 16, the fuel tank 17 and the "p" -shaped frame 18.

The pile driver works as follows. The pile driver is transported to the work site, after which it is transferred from the transport position to the working position, i.e. the pivot frame 2 rotates 90 degrees and the mast 4 is set to a vertical position by the hydraulic cylinder 10. On its own, the pile driver moves to the point of driving the rack (piles).

In the driven impact unit 5, the shabot is installed corresponding to the rack (piles). A post (pile) is installed in a special girth located on the mast 4, after which the impact block 5 with a shabot moves to the head of the post (pile). Depending on the type of soil, either indentation or hammering is performed, or a combined-sequential action of “pressing-in” of the rack (pile). The design of the pile driver allows the use of various methods of driving the rack (piles), which allows the use of the pile driver on different types of soils: in "soft" it is preferable to press in, in "hard" - hammering, in mixed, multi-layer - "pressing-in". In the process of operation of the hydraulic hammer 6, due to the movement of the mast 4 to the left and to the right by the hydraulic cylinder 12, back and forth by the hydraulic cylinder 10, the orientation (alignment) of the driven rack (pile) relative to the soil surface takes place to ensure perpendicularity, in addition, this allows driving at an angle if necessary.

The hydraulic cylinder 7 with a double-sided rod does not allow the hammer 6 during operation to "bounce" on "hard" soils due to the flow of hydraulic fluid in the cylinder from one cavity to another, and thereby the maximum transfer of impact energy is achieved.

After the completion of driving, the machine moves on its own to the next working point.

Thus, the movement of attachments along the mast using a hydraulic multiplier excludes from the design cable winches with block cable guiding systems, which increases the reliability in the operation of the claimed device, in addition, the use of a cylinder with a double-sided rod makes it possible to create a pressing force of the drilling equipment through the slider and to the pile of the hydraulic hammer, which provides an increase in the productivity of drilling and pile driving.

The above description indicates the fulfillment of the following set of conditions when using the claimed utility model:

- a tool embodying the claimed utility model, in its implementation, is intended for the manufacture of reinforced concrete foundations of engineering structures, for immersing and extracting metal pipes, shell piles, prismatic reinforced concrete piles, as well as for creating pile fields of solar power plants and installing individual elements of transport infrastructure.

- for the claimed device in the form as it is described in the stated formula of the utility model, the possibility of its implementation using the means and methods described in the application has been confirmed;

- a tool that embodies the claimed utility model in implementation, is able to ensure the achievement of the stated technical tasks perceived by the applicant. Consequently, the claimed utility model meets the “industrial applicability” condition.

Claims (3)

1. A pile driver containing a central frame, a caterpillar chassis, a mast, a driving shock block equipped with a hydraulic hammer, installed with the ability to move along the mast, devices for moving the shock block, characterized in that the hydraulic hammer is made of a membrane type with the supply of hydraulic fluid from a gear pump, and the device for moving the impact unit is made in the form of a hydraulic multiplier, consisting of a hydraulic cylinder with a double-sided rod, pulley blocks and a plate chain mounted on a mast; the central frame is equipped with a pivot frame, on which a mechanical orientation system in space is hinged, including a mast, an u-shaped frame on which hydraulic cylinders are mounted for tilting the mast left-right, moving the mast parallel to the chassis and tilting the mast back and forth. 2. The pile driver according to claim 1, characterized in that the central frame is based on a tracked chassis and is equipped with a diesel engine, hydraulic and fuel tanks, an operator's seat and pile driver control levers. 3. The pile driver according to claim 1, characterized in that the pivot frame is connected to the central frame by means of a pivot support device.

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