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Device For Selection Of The Care From The Bore-Hole Walls
Категория: Инж. тех. м. и а. | Новость от: Admin | 27-12-2005

The proposed referrers the mining act, namely to the method for selection of the rock samples from the bore hole walls. The elaboration is awarded with certificate of authorship N 1347554 and has a classification of the official use. Simplification of design, reduction of dimensions and increscent of the work reliability are provided. It is a well-known fact that for existing analogues of the hole due to its small diameter it is impossible to have requested maneuverability, to develop enough axial and torsion force of the borer.

Their structure is complex, capricious and unreliable in services. The device had to be lowered down deeper (up to 13km) where adverse meteorological candidates (temperature, humidity, pressure) require simple, reliable operation.

The proposal device consists of the descending body on cable, inside of which the borer 2 is located with rotation mechanism as an electric heater 3 which is attached to the borer by a tube-shaped element 4 (it can also be as a watch spring). It is made of the alloy with expressed by changing of the torsion deformation 9stain); also hold-dawn strap 5, fixed on the body 1 by levers. By the link 7 the strap 5 is also joined to zigzag element 8 from notional alloy with memory from expressed by changing of its dimension. Element 8 is also connected with a tube-shaped element and the body 1 in the medium part by the clip. Element 8 has an electric heater 10 and together with it performs the mechanism function of the borer delivery 2 and hold-down strap 5.

The device is operated in the following way, when the device is lowered down to a certain deep 2, electric current is switched on for heating of the electro-heaters 10 and 3. When the certain temperature is obtained, example, 2000C, elements memory 8 and 4 effect is intensified causing the change of their forms.

The price of the element is turned on to the reverse direction of the hour hand; the hold-down strap 5 is moved in the direction of the bore-hole wall and the body 1 is stopped in a certain position. By heating the lower part of the element 8 from the clip 9 is expended in opposite direction of the strap 5 which is used for the borer 2 displacement to the direction of the bore wall. At the same time element 8 is heated due to heat transfer from the electric heater 10 and the rotation effect occurs causing the borer 2 rotation. As a result the borer is integrated in the rock and the core is extracted. When electric heaters are switched off, the elements 8 and 4 come back to their initial position together with borer and the strap.

Joint patenting of the development in abroad is proposed for collaboration.
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