SU673887A2 - Sampler - Google Patents

Description

(54) SAMPLIFIER

The invention relates to autonomous technical means for sampling the upper layers of sedimentary deposits from the anocene and can be used for testing submarine deposits, mainly iron-manganese nodules and metalliferous silts.

According to the main author. St. Mz 566162 is a well-known sampler designed for prospecting and industrial exploration of deep-water deposits of the ferromanganese nodules of the ocean floor, consisting of a float with a passive reflector, ballast, frame with supporting rod and steak of the grab bucket, pulley with stockpile and connected with float of a rake and with a float of a rifle stick. Leader and castle device. At WTO, the sampler is equipped with containers for ballast weights, and the locking device is designed as a mechanism for synchronizing the operation of the clamshell grapples and dumping the ballast weights, consisting of tstr interfacing, hinged connecting fittings with the clamshell grapples, and installed with the possibility of self-gripping, with the possibility of grappling forging, and with the possibility of the self-supporting bolts with the clamshell clamps; the clamshell bucket flaps when they are fully opened, and the containers are equipped with cantilever stops and fixed on the clamshell clams by means of horizontal axes, and the container s are rotatable about horizontal axes and sinhroniziruyushie rod connected with the slats clamshell bucket with the possibility of interaction with the console on stops konteyn ah. Actuation of the clamps of the grab bucket takes place due to the thrust generated by the float and transmitted through the cable, which is passed through to the school. The specified sampler allows you to select guaranteed samples weighing up to 4 kg.

However, as shown by the sea tests of the WTO sampler, at depths of more than 2OO m, the speed of the device does not exceed 1, м m / s, which, if there is a subdivision at a speed of 0, О5 to 0.5 Km / chr, is discharged to its significant demolition from The intended location of the Johnson Park on the stump. It is possible to increase the accuracy of the sampling of the boom at the intended place by increasing its immersion speed to 2.2-2.5 m / s, which is achieved by using additional discharged ballast. The operation of the sampler with perforated immersion rates can lead to its breakage when struck, for example, rocky or dense brod: it is possible that the clamshell grapples are jammed, the curvature of the choke line and so on. The aim of the invention is to increase the reliability of deep-water sampling of bottom sediments at elevated speeds. immersion sampler. The goal is achieved by the fact that containers for placing discharged ballast weights are equipped with hinged cantilever arms made with grips for additional ballast weights equipped with rope slings for hanging additional ballast weights, and the grips of additional ballast weights are in the form of forks, and the length of the rope slings for suspension of additional ballast weights is determined from the expression:. . where bj-, -the length of the cable stron, m VpiQ. - sampling speed, m / s; Pfi Yao Density of the material of ballast and water is appropriate, g / cm; TO,. - empirical coefficient of braking efficiency, depending on the density of water; KT 5.5-5.6 g / cm. FIG. Figure 1 shows the proposed sampler with the clamshell grapple doors in the open state with suspended extras {discharged ballast weights; in fig. 2 is the same, node J in FIG. 1. The sampler is attached from the working device in the form of the clamps of a clamshell bucket 1, EaZhreplёshkh on the frame 2 with the support rod 3, uiKHBoB 4 with the reserve and connected. with a float 5 cable 6.

..., liv.Aii & s- t-ft-C i itSaa:

Claims (3)

.-iA. ; - .. № b ------ - With a primer in the upper part of the float 5, a ukroplenb device 7 for searching and detecting an emerging sampling device, such as a passive reflector. PP positioning ballast cargo 8 forms and profiles serve containers 9, equipped with cantilever supports 10. Containers 9 are fixed on the clamps of the grapple bucket 1 by means of horizontal axes 11. The sampling locking device is made in the form of mechanisms for the nitriding of the work of the clamps of the clamshell bucket 1 and the discharge of ballast weights 8, consisting of synchronizing t g 12, sharshgrio. connected piper 13 with clamshell claws 1. At WTO, synchronization rods 12 should be self-locking the claws of clamshell 1 at Full disclosure, and containers 9 for placement with asymmetrically ballast weights provided with cantilever arms 14 mounted on hinges 15 , moreover, at the free end of the cantilever arms 14, the grippers 16 are placed, hang on the straps 17, additional discharged ballast weights 18, made, for example, in the form of forks. Additional discharged ballast weights 18 are suspended on the arms 16 of the cantilever arms 14 with the possibility of their advanced contact with the ocean floor. The sampler operates as follows. Before dumping the sampler from the floating craft, the full opening of the clamshell I bucket flaps is made, which with the aid of an articulating cable t: g 12 ensures their self-locking. At the same time, the saMKoJaoe device, due to the effect of synchronizing tons x 12, ensures their self-fixation, and due to this, the required amount of ballast weights 8 is placed in containers 9 and the necessary 1crLiCH is suspended on straps 17: the EYTo Additional dumping of ballast weights 18. After discharging the sampler from the floating vehicle due to its negative buoyancy, created by ballistic weights 8 and 18, it is immersed at a speed of about 2.2; 2.5 m / s until it reaches 18 ocean bottom with additional ballast weight. After the additional discharge of the 18 bottom of the ocean is discharged, the sampler is braked. The speed of its immersion is reduced by 1.51, in m / s, which excludes the former and the failure of the sampler when the leader fitting 13 strikes the ocean. At the same time, cable slings 17 sag and, when tilting containers 9, they detach 16 console arms 14 from fork-type grips. Synchronizing pulls 12, lifting, interact with cantilever stops 1O, which causes the containers 9 to turn in a circle of horizontal axes 11 and release ballast weights 8. The released flaps of the grab bucket 1 begin to close and scoop up the bottom sedimentary rock, while the cantilever arms 14 turn in the hinges 15 and do not prevent the flaps of the grapple bucket from closing 1. Closing flaps The clamshell bucket is produced by the support of the Archimedean force created by the Float 5, which is transferred by means of flexible Tstr, filled in the form of a cable 6, stored in pulleys 4. After the complete closure of the clamps of the clamshell 1, the sampling cycle ends. A positive buoyancy with the help of a float 5, the sampler floats to the surface of the oceans, is detected with the aid of, for example, a radar and a passive reflector and rises aboard the carrier craft. Claims 1. Sampler according to author. St. No. 566162, characterized in that, in order to improve the reliability of collecting deep-water bottom sediment samples, especially at elevated sampling sinkholes, containers for accommodating discharged ballast weights are equipped with cantilever arm levers; rope slings for additional ballast ruses, 2. The sampler according to claim I, about tons of l and the fact that the seizures of additional ballast weights are made in the form of forks. 3. The sampler of claim 1, of which is smelled in that the length of the rope slings for suspending the additional buckles. weights are defined as: --CH, where l4p, p is the length of the rope slings, m; VpQ sampling rate, m / s; Jx. , pQ material density ;; a ballast and Water, respectively, g / cm; K is the empirical coefficient of braking efficiency depending on the density of water; XT 5.5-6.5 g / cm.