SU1245656A1 - Pile-driving apparatus - Google Patents

Description

one

The invention relates to construction and can be used in vibratory and vibro-impact machines for piling.

The purpose of the invention is to increase the efficiency of the device.

Fig. 1 shows a kinematic diagram of a device for piling; Fig. 2 shows a kinematic diagram of the device with additional driven cranks.

The device for piling consists of a housing 1 with an electric motor 2, on the shaft of which: at both its ends cranks 3 and 4 are rigidly fixed. Cranks 3 and 4 are hingedly connected through rods 5 and 6 with driven cranks 7 and 8. which are mounted diametrically opposite on onopa 9 and 10 on the main necks of the driven cranks 7 and 8, the unbalances of 11 and 12 are rigidly fixed. The shaft axis of the electric motor 2 is perpendicular to the axis of rotation of the main necks of the driven cranks 7 and 8 and is separated from them by a distance equal to the length of the connecting rods 5 and 6, the axis of the hinges s are mutually perpendicular and are set at an angle to the axis of rotation of the respective crank.

The device can be equipped with two additional slave cranks 13 and 14 with rigidly fixed unbalances 15 and 16 on their main journals. Moreover, the additional driven cranks 13 and 14 are mounted in pairs with the driven cranks 7 and 8 and are connected to them via the connecting rod necks, and their main journals are located in the supports, 17 and 18 coaxially with the corresponding root necks of the driven shifts 7 and 8.

The parameters of the pile driver are interconnected by the following relationship

g

Sinot

45656. .. 2,

where, is the length of the connecting rod 5 or 6; J - crank length; about (- the angle at which they are crossed

Crank-3 pivot hinge axes 5 and 7.

When this axis of the hinge cranks 4 and 8 are crossed at an angle of 180 K.

The operation of the pile driving apparatus is carried out as follows.

From the electric motor 2, the rotation is transmitted rigidly fixed on its shaft by the driving crank 3 and 4, which through rods 5 and 6 turn on 15 unbalances 11 and 12.

Due to the crossed arrangement of the axes of the crank joints and the perpendicular arrangement of the shafts of the driven cranks to the shaft of the 20 body 2, when it rotates at a constant angular velocity, the unbalances 11 and 12 rotate with the angular velocity variable for rotation, and due to the arrangement of the axes of the crank joints 25 one pair at an angle o, and the other at an angle unbalances 11 and 12 rotate in different directions. In this case, the minimum value of the inertial forces corresponds to the minimum angular velocity, and the maximum value of the inertial forces directed to the side of the pile deepening corresponds to the maximum angular velocity.

In addition, when the unbalances 11 and 12 are rotated clockwise from top to bottom, there is a torque about the pile axis, which is directed clockwise, and when the debalance of 11 and 12 is rotated from bottom to top, the torque is counterclockwise.

In order for the device to only generate translational power impulses, it can be equipped with additional unbalances 15 and 16.

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Compiled by V. Korolev Editor E. Papp Tehred V. Kadar Proofreader | A.T sko

Order 3967/20 Circulation 64.1. Subscription

VNYIPI State Committee.USSR

for inventions and discoveries I3035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

FIG.

Claims (2)

1. DEVICE FOR IMMERSING PILES, comprising an electric motor, drive cranks fixed to the ends of the shaft and driven cranks with unbalances on the main journals pivotally connected to them, characterized in that, in order to increase the efficiency of the device, the axis of rotation of the motor shaft is perpendicular to the axes rotation of the driven cranks and is located from them at a distance equal to the length of the connecting rod, while the axis of the hinges of each connecting rod are mutually perpendicular and set at an angle to the axis of rotation constituents cranks, and driven cranks are secured in the housing diametrically opposite. 2. The device according to p. the necks are located coaxially in the body. SU, · "1245656 A1