SU586243A1 - Device for monitoring the preset pile-sinking level - Google Patents

Description

one

The invention relates to the field of automation of pile loading equipment and is intended for use on pile drivers when driving piles to a predetermined mark.

Devices are known for monitoring the immersion of a pile with a contact transducer of displacement into the number of pulses 1.

However, this device does not provide a sufficiently high reliability in operation.

It is also known to control a predetermined level of a pile driven by a pile driver, including a hammer control circuit and a fluid reservoir mounted on a bed.

This device is made with a tank mounted on a pile head and connected to another tank, fixed at a given immersion level and having contact floats that are connected to the control mechanism of the downhole equipment.

The device has the following disadvantages, which are manifested in the work:

the presence of a link through a hose with a previously immersed pile reduces the maneuverability of the copra;

Before working with the device, it is necessary to fasten the container to the hammer head cap, and after finishing dismount it;

to set the tank to another level

you need a special lifting device and attendants to it.

The purpose of the invention is to increase the accuracy of control of the pile driving.

This is achieved by the fact that the device for monitoring a predetermined level of the pile is equipped with transparent communicating tubes connected to a fluid reservoir, two of which are mounted on the frame, and a third made with a float magnet, a portable frame and a ruler mounted on the scraper and equipped with a level gauge and plates with magnetic contacts, one of which is rigidly attached to the ruler in the area of the third tube, and the other to the level indicator and is equipped with a magnet mounted on the hammer head, with than each magnetically controlled contact of one plate is connected with the corresponding magnetically controlled contact of another plate and is included in the hammer control circuit.

FIG. 1 shows the proposed device, a general view; in fig. 2 - measuring device ruler.

The device is made up of three communicating transparent tubes 1, 2, 3 which are hydraulically connected to the reservoir 4 with the liquid fixed on the frame. Two tubes 1 and 2 serve as a sight and are placed on a novorot bracket 5, reinforced on the bed of the operator’s cab, and a third - indicator 3 is fixed on the mast of the copra 6 at the level of the first two. A float magnet 7 on the float 8 is placed on the surface of the indicator tube liquid. The setter can be installed at any position along the length of the ruler using the handle 11 through a closed loop system placed in the ruler case. The starting point of the ruler is rnska 12, conducted on the body of the ruler at the level of the middle of the indicator tube.

The ruler 9 is made with automatic alignment of the reference point with the liquid level in the indicator tube 3, for this it contains two identical plates 13, 14 with a set of magnetic contacts 15. Nlastina 13 is fixedly attached to the ruler along the indicator tube, and its average contact is at the level of risks. Plate 14 is mounted on a movable level gauge along the ruler symmetrically with respect to the needle points. Contacts on the plates are placed with a certain schag one above the other at a length equal to the height of the indicator tube. Each contact of the fixed plate is connected in series with the corresponding contact of the movable plate. A set of pairs of contacts is connected in parallel and is included in the hammer control circuit.

To control the contacts of the plate 14 on the head of the hammer 16, at the level of its bottom, a magnet 17 is fixed.

The device includes a portable frame 18 with an adjustable height of 19.

The device works as follows.

The bench mark 18 is set at a distance of 15-20 m from the pile head. Mark 19 of the frame is set to a height I from the geodetic mark 20.

The liquid level in the communicating tubes is combined in one horizontal plane with the reference mark 19 by moving the piston of the reservoir 4.

When installing the immersion task, the setpoint gauge is installed on the ruler at the h mark above or below the origin, depending on how the head of the submerged pile 21 is located relative to the mark 19 of the reference frame 18.

After aiming at the rapper, the float magnet 7 closes the contact 22 closest to it on a fixed plate, which

It prepares the circuit to contact 23, located on the setpoint plate of level 10, at a distance equal to the immersion task.

When a pile approaches a predetermined immersion level, the magpit on the hammer head passes near the contacts on the setpoint plate of level 10, which in turn are closed. But the signal to turn off the hammer will be when the zodan closes

the contact for which the circuit is prepared by the contact of the fixed plate, which corresponds to the achievement by the pile of a given level of immersion. If a new driver is installed at a new immersion point, the fluid level in the tubes

it is necessary to lift up to align with the mark of the bench mark. This will automatically raise the float magnet 7 in the indicator tube 3, which will close the contact 24 located above the contact 22

by the amount of lifting fluid. Pin 24 will prepare the circuit for pin 25 on the setting plate of level 10. At the same time, simultaneously with the offset of the starting point of the ruler 9, a parallel transfer of the task will occur

immersion in the same direction, which will ensure that the accuracy of the pile is maintained to a predetermined level.

Claims (2)

1. USSR author's certificate No. 390232, cl. E 02D 13/06, 1971. 2. The copyright certificate of the SS (178745, 60 class E 02D 7/20, 1963. 1 L Baemij J / 1 /