SU1682856A1 - Multiple-use sampler - Google Patents

Abstract

The invention relates to sampling devices and can be used for geotechnical engineering at the bottom of the seas and oceans. The purpose of the invention is to increase the reliability of work. The sampler contains a supporting frame, core-receiving sleeves installed along its perimeter, a pushing-through mechanism for the core receiving sleeves, made in the form of a piston-type hydraulic cylinder, the inlet of which is equipped with a spring-loaded valve. The sampler is equipped with a starting device, made in the form of a ratchet mechanism, and there is a body with a valve. - crawler mechanism, with the pusher being kinematically connected to the valve of the hydraulic cylinder, and the slider is connected to the cargo cable with a rod 3 l

Description

The invention relates to sampling devices and can be used for geotechnical engineering at the bottom of the seas and oceans.

The aim of the invention is to increase reliability and simplify the design.

FIG. Figure 1 shows the kinematic scheme of the reusable sampler; figure 2 - sampler, General view; on fig.Z - section aa in figure 2.

The sampler consists of a carrier frame 1 with a guide 2, in which a slider 3 with a rod 4 is located, a connecting rod 5 is hingedly connected to crank b, which is pivotally mounted on the camshaft 7, and on the crank 6 a dog 8 is hingedly mounted. the teeth of the ratchet wheel 9. On the shaft 7, at different angles, the pushers 10 are uniformly mounted. The latter, when rotated, engage with the corner arm

11, which is pivotally fixed to the carrier frame 1 and, through the cable 12, is pivotally connected to a spring-loaded valve 13, which is preloaded into the inlet 14 of the hydraulic cylinder 15, spring 16 The piston chamber of the hydraulic cylinder 15 can be connected to the environment by means of an opening 17. which is closed by a valve 18, by the compressed rod 19 of a hydrostatic stopper consisting of the rod 19, the spring 20shti, the locking balls 21, the stopper ring 22 and the spring 23 of compression. The spool 18 is connected to a support frame 1 of a tension spring 24. Inside the hydraulic cylinder 15 there is a piston 25 with rods 26 and 27. The rod 26 is rigidly connected to the upper end of the core receiving sleeve 26, in the lower part of which a cutting device 29 is installed. The rod 27 enters the upper part 30 into the spring stopper device 31, and to the upper part the rod 27 secures the cargo cable 32,

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passing through the deflecting blocks 33 and secured by the other end on the disk 34 located on the shaft 4. The ratchet wheel 9 together with the shaft 7 is kept from turning when the slide 3 moves upwards with an additional pawl 35. The spring 2 is installed in the guide 2.

Reusable sampler works as follows.

Before lowering the sampler to the bottom, the hydrostatic stop ring 22 is retracted to the right, compressing the spring 23. In this case, the locking balls 21 release the rod 19, it moves to the left under the action of the spring 20 and presses the spool 18 to the opening 17 of the hydraulic cylinder 15. The force of the spring 20 is greater than the force of the spring 24. When the sampler reaches a predetermined depth under the action of external pressure, the rod 19 moves to the right, while compressing the spring 20, and the locking balls 21, falling onto the thinned part of the rod 19, release the ring 22, which under the action of the springs 23 eremeschaets left and fixes the rod 19 in the rightmost position. Moving to the right, the rod 19 releases the spool 18, and it is pressed against the hole 17 only by external water pressure, which is greater than the force of the spring 24. When the supporting frame 1 is installed on the bottom of the slider 3 with the rod 4 under the force of gravity and the spring 36 goes down and through the crank 5 turns crank 6 at a certain angle, while the dog 8 turns the ratchet wheel 9 and the camshaft 7 together with the pushers 10. At the end of the course of the slide 3, one of the pushers 10 presses the free end of the angular rocker arm 11 and turns him around g axis and the other end of the yoke 11 pulls 12 valve 13 from the hole 14, while compressing the spring 16. Water, falling into the above-piston space of the hydraulic cylinder 15, moves the piston 25 with the rods 26, 27 and the core sleeve 28 down, setting - pour it into the ground. In this case, the upper part of the rod 27 leaves the locking device 31. When the sleeve 28 is inserted into the ground, the cable 32 is under pressure only on the hydraulic cylinder 15 currently in operation, and

the rest of the hydraulic cylinders 15 cable 32 sag. As the piston 25 moves in, the air in the piston cavity is compressed and its pressure increases until the spring 24 pulls the spool 18 away from the hole 17 and the pressure in the piston and supra piston cavity of the hydraulic cylinder 15 is equalized. When raising the sampler over the bottom of the eye of the rod 4 cable 32 core lifts

the sleeves 28 are removed from the ground, and the upper part 30 of the stem 27 enters the spring locking device 31. When the slide 3 moves upward, the ratchet 9 with the shaft 7 is kept from turning by an additional dog 35.

The sampler is transferred to a new point without lifting it to the deck of the craft, the sampling process is repeated. After using all core lifes

Claims (1)

The liner sampler is lifted onto the deck of the watercraft where the sampling is analyzed, the sampler is prepared in operation and the process is repeated. Invention Formula A reusable sampler, including a supporting frame with core tubes installed along its perimeter with a cutting device, a mechanism for pressing core liners into the ground, starting device and cargo cable, characterized in that, in order to increase reliability in operation and simplify the design, the mechanism of pressing each core sleeve into the ground is designed as mounted on a bearing frame above the core-sleeve of a piston hydraulic cylinder, the inlet of which is filled with a spring-loaded valve, and the piston is rigidly connected to the upper end of the receiver-receiving sleeve by means of a rod, the ratchet mechanism is mounted on the shaft of which are pushers, and the crank-half-tube has a ratchet mechanism mounted on the shaft of which are pushers and mechanism, with this dog 5 of the ratchet mechanism is hinged at the end of the crank, the slide is spring-loaded, and the pushers are installed with the possibility of kinematic interaction with the spring-loaded valve of the hydraulic cylinder. WITH in with cm 00 Ј 71 26 28 FIG. 2 Aa Fig.z