SU41731A1 - Instrument for determining the height of the jumper of the copra woman after impact - Google Patents

Description

When driving piles, it is necessary to know the size of the jump of the woman after the impact. The proposed device serves to automatically record the VALUE of the jump of a woman and to simultaneously record the interval of time between beats.

In FIG. 1 shows the moving part of the device; FIG. 2 - fixed part; fng 3 - diagram of the electrical part of the device.

The movable part (Fig. 1) consists of a bracket 3 with a sleeve 6 serving as a guide for the rod 2 moving in it with a significant tread. The head 1 of soft iron (measles) is fixed to the lower end of the rod by means of a universal joint, which makes it possible for the measles to assume any position at an angle to the axis of the rod. The springs 7 prevent the spontaneous repositioning of said head.

The stationary part of the device (FIG. 2) consists of a base 8 with a vertically disposed sleeve 9 serving as a guide for the rod 10 moving freely in the sleeve. The upper part of the rod 10 has an extension of 11 with electric elements fixed in it (247)

with the help of tamper plates 4. In the lower part, the rod 10 has a finger 12, which passes: through the sleeve through a longitudinal section 13. The end of the finger is provided with an indicator 5, which is in contact with the surface of the drum 6, which is rotated by means of a clock mechanism 14 at a constant ANGULAR speed.

In the production of experience, the movable part of the device is rigidly fixed on the woman so that the axis of the rod 2 is vertical. The lower part of the device is firmly positioned adjacent to the driven pile so that the axis of the rod 10 is vertical and at the same time serves as a continuation of the axis of the rod 2. The jump record is made as follows. At the end of the fall of the head 1, the head 1 is in contact with the plane of the cores of the electromagnets 4, and from that moment the movement of the rod stops. Further advancement of the female with a fixed stock is possible, as in this case, the rod 2 moves in the sleeve 6 (Fig. 1) until the woman stops.

At the moment of contact of the head 1 with the cores of the electromagnets, the latter are connected to the circuit of the battery 15 (FIG. 3) by closing the contacts 16 and 17. The head 1 is attracted to the rod 10

so that when the woman reverses (rebound), the rod 10 is carried up by the woman, which movement is detected by the indicator 5 on the drum in the form of a curve, the largest ordinate of which is the height of the woman's jump.

At the beginning of the boom, the pins 16 and 17 are broken, but since the damping copper tubes are mounted on the middle plates, the magnetic tray does not disappear instantaneously, and it is discharged gradually in the damping tube.

With the device, after a lapse of approximately 0.4–0.8 seconds, the connection between the 1-current 2 and the JO is broken and the rod 10 falls under the influence of gravity to its original position, after which the next pile driving cycle can be started. As a result of changes to the drum record, three values are obtained — the jump time, the height of the jump, and the time interval between beats.

The subject matter of the invention.

A device for determining the height of the boom of a copra after impact, characterized by the use of a rotating head I suspended on Springs, is provided with a hinged rod 2 held by friction in the bracket 3 of the head and designed to couple with electromagnets 4 of the indicator 5 to lift it simultaneously with the jumping of the woman in order to apply curve on drum 6.

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