SU368376A1 - ANCHOR DEVICE; оо; 0знд n ^ J ^^ THO-kxii:; - ^ ^ Ш.К.БМБЛ> & (Eggcd I - Google Patents

Description

one

This invention relates to a field of technology for underwater mining.

Known core device included in the grab.

In the invention, in order to increase the filling of the grapple when operating under water, an additional root force is developed through the use of hydrostatic pressure forces of a liquid column. This is achieved by the fact that the buried root part is made in the form of a vertical pipe with a spring-loaded valve cover, on which a safety valve is installed, and the root part interacts with the starting-start device attached to the grapple through a flexible rod. The release mechanism is made in the form of a power cylinder with a control system.

FIG. 1, 2, 3 shows the position of the grapple and the core device, respectively; in the initial position before the beginning of the scoop, in the process of scoop, at the end of the scoop cycle; in fig. 4 is a view along arrow A of FIG. 3; in fig. 5 - device of the subsurface root; in fig. 6 is a section along BB in FIG. five,

The grab / with the root device fixed on it 2 is suspended on supporting 5 and closing 4 ropes. The locking caiat 4 is attached to the grapple / through the hoist 5. The jaws 6 of the grapple / are connected with the beam 7. The buried root part 8 consists of a vertical nozzle 9, overlapped on the upper edge 10, with a spring-loaded valve cover 11 with a safety valve 12 located on it frame 13, mounted on the pipe 9, consisting of a flange 14, fingers 15, plate 16. The anchoring part 8 through the plate 16 is attached to

17. The 17 ha. T. 17 of the rollers 18, mounted on the beam 7, is brought to the reciprocating trigger device 19. The trigger mechanism 19 consists of a hydraulic ram 20 with moving in it

a piston 21 having lower 22 and upper 23 rods and a pipe connecting the ends of the cylinder 20 through a pressure slide valve with a check valve. The power cylinder 20 is mounted on a strut 24 rigidly connected to

beam 7 and movably - with a grab head 25. To the bottom rod 22 is mounted m ha 17. The upper brush 23 is connected with a bracket 26, movably mounted on a rack 24. The main device 2 in the process

grapple filling / proceeds as follows

When lowering, the grab / nozzle 9 is embedded in the ground. The water from the pipe 9 goes through the valve cover //. Next, the valve cover / / sits on the edge 10 of the nozzle 9 and

blocks the access of water to the inside of the pipe 9 on top. Since the beginning of the closing of the jaws 6 of the grapple / beam 7, it begins to move upwards and, in the case of the stationary core part 8, the movement of the beam 7 is possible due to the movement of the piston 21 relative to the beam 7. The movement of the piston 21 takes place under a certain force, which through the beam 17 acts on the beam 7 and on the main part 8.

In the pipe 9, under the action of the force, which rises out of the ground, the pressure decreases, since the soil covering the pipe 9 on the external and internal surfaces prevents sufficiently rapid penetration of water into the pipe 9. On the cover-valve 11, which results in a corrosive force holding the core 8 in the ground. By this force, the core part 8 through the tug 17 will act on the traverse 7, preventing its free movement and facilitating the recess of the jaws 6 into the ground. With an increase in the root force beyond the permissible, the safety valve 12 is triggered, ensuring the exit of the core part 8 from the soil. The pressure in the ram 20 is controlled by a pressure slide valve with a check valve (not shown in the drawing). It passes a fluid with a predetermined pressure from the lower part of the power cylinder 20 into the upper part, separated by a piston 21, at its working stroke downwards, and passes a fluid with minimal resistance in the opposite direction when the piston 21 moves upwards. The return stroke of the core part 8 to the initial position for the new work cycle occurs when the grapple is opened /. Traverse 7 is lowered together with the stand 24 and the starting-up starting device 19 relative to the head of the grapple 25. The bracket 26 rests against the head of the grapple 25 and moves the upper rod 23 upwards. Due to this, the root part 8 is pulled to the beam 7 up to the rest of the starting position for the new cycle of operation. The soil of the pipe 9 falls under its own weight.

P

Subject invention

Claims (2)

1. Anchor device, for example, a grapple for underwater excavation of soil, including a buried main part, characterized in that, in order to increase the degree of filling of the grapple by its root using hydrostatic pressure, the main part is made in the form of a vertical nozzle with a spring-loaded valve cover On which the safety valve is installed, and interacts with the reciprocating-trigger device mounted on the grab through a flexible rod. 2. Anchoring device according to claim 1, characterized in that the reciprocating and lowering device is made in the form of a power cylinder, for example, with a double-sided rod with a control system. rig i FIG. 2 Vu2.5