SU20011A1 - A device for coupling and uncoupling a pile driver with an endless chain raising it - Google Patents

Description

The invention relates to automatic mechanisms that interlock and uncouple the driver from an endless chain that serves to lift it. In order to soften the action of the coupling mechanism of the blows caused by the fall of a woman, in the proposed device, an elastic connection is used that connects the woman with a swivel lever that engages her with an endless chain.

In the vertical section, the proposed device consists of a pivot arm 4-5, the axis of rotation of which is fixed in the cam 2. The latter is connected by a hinge 3 and an elastic joint 18 with the female to receive, after the shaft of the pile, circular motion in the direction to the chain. For inserting the tooth 4 of the lever into the chain link and withdrawing it from there, there is a special mechanism consisting of a slider 11 connected to the springs 6, 12 attached to the arm 5 of the lever. When moving to the lowest position of the slider 11 after the impact of the woman on the pile, the introduction of tooth 4 into the chain link takes place; when the latch 17, holding the slider 11 in the lower position, will be pushed back by the elastic connection 18 as the woman lifts, in the opinion of the visitor, the slider is pulled up

spring b, so that tooth 4 will be removed from the chain. In order to hold, during the raising of the head, the knuckle 2, which is acting by the action of the flat spring 7, in the position close to the chain, a rotating stop 8 is applied. The latter is connected by a rod 16 to the lever 14, one end of which is attached to the helical spring 9, and the other - with a rope 13 serving to pull off the end of the lever 14 when the woman uncouples from the chain. The automatic uncoupling of the head is due to the fact that the end of the lever 14 abuts the stopper.

The subject of the patent.

1. A device for coupling and uncoupling a pile driver with an endless, lifting it, chain, in which the coupling mechanism is a vertically pivotal, fortified in a woman, lever, characterized in that to ensure the automatic operation of the device and to mitigate the impact of drops on it The pivot, the axis of rotation of the lever 4-5, is fixed in the fist 2, which by means of the hinge 3 and the elastic connection 18 is connected with the woman, in order to receive a circular motion in the direction of the chain by the impact of the woman on the pile.

2. With the device described in item 1, the mechanism for inserting the tooth 4 of the lever inside the chain link and withdrawing it from there, characterized by the use of a slider P connected to the springs b, 12 attached to the arm 5 of the lever and used for lifting and inserting the tooth 4 when moving, after the woman’s impact on the pile, to the chain link, to the extreme lower position, when the woman is lifted, by the elastic connection 18 retaining it, the latch 17 is pulled up by the spring 6 in the lower position, the cather is also designed to output tooth 4 out of chaining.

3. When characterized in clauses. 1 and 2, use a pivot stop 8, which is under the action of a spring 9, designed to hold the fist 2 in a position close to chain 1 during the entire period of the boom lift, while the woman reaches the extreme upper position - releasing this fist, to be able to deviate it from the chain pressure spring 7.