Drag head

FIELD: mining.

SUBSTANCE: drag head includes a drilling machine with a control system and a penetrator, which is fixed on a space lander. Heat insulated containers for soil sample excavation are fixed on the penetrator. The drilling machine is equipped with a temperature sensor of a penetrator tip, which is connected to the control system of the drilling machine.

EFFECT: invention allows improving quality of obtained soil samples.

4 cl, 6 dwg

 

The invention relates to space technology, namely to devices for sampling of soil (for example, frozen blocks of ice, etc. and can be used in the study of planets, comets and other heavenly bodies.

Known groundsamine device containing a drilling rig with a control system and a penetrator mounted on space landing module, and attached to the penetrator containers for collection of soil samples (see JP patent 6056100, CL B64G 1/66, publ. 01.03.1994). A disadvantage of the known devices is the inability to obtain a sample in its natural state and maintain its temperature until delivery from the well to research the device, due to the lack of control and maintain the required temperature range of the penetrator, and accordingly, the containers with the soil.

The objective of the invention is to eliminate specified. the drawback. The technical result consists in increasing the quality of the obtained soil samples. The problem is solved and the technical result is achieved by the fact that in gruntsgabalam device containing a drilling rig with a control system and a penetrator mounted on space landing module, and attached to the penetrator containers for sampling of soil, containers made of thermally insulated, and brown the second unit is equipped with temperature sensor tip of the penetrator, connected to the control system of the rig. The drilling rig is preferably equipped with a passive thermal control system that includes a heat pipe in the heat pipe, the evaporation zone which is connected to the tip of the penetrator. Passive thermal control system it is expedient to provide a low temperature termoacumuladores operating mode of the phase transition. Groundsamine the device may be equipped with multiple insulated containers that are located at different levels along the penetrator, and each container is equipped with independent rotary mechanism for opening/closing.

Figure 1 presents a General view of the space of the lander with the proposed gruntsgabalam device at the time of soil collection;

figure 2 - the same at the time of unloading of the substrate;

figure 3 shows a longitudinal section of the proposed suction head; it;

figure 4 shows the location of the elements of thermal control system;

figure 5 - cross section a-a in figure 3;

figure 6 shows the fastening of the container to the penetrator with a rotary mechanism for opening/closing.

Offer groundsamine device is attached to the manipulator 1 space lander 2 and contains a drilling rig control system (position not defined) and penet what ATOR 3. The tip 4 of the penetrator 3 is connected with piezoelectricity ultrasonic transducer 5 via the link to increase the amplitude of the 6, two-half-wave spacer 7 and the hub 8. The fastening device to the manipulator 1 is carried out through a wave stud 9 having a channel for passage of command and signal cables 10, and the transition element 11. The rig is equipped with a temperature sensor 12 of the tip 4 of the penetrator 3 connected to the control system of the rig. The temperature of the penetrator 3 is maintained at the required level using a passive thermal control system that includes a heat pipe in the form of low-temperature heat pipe 13, the evaporation zone which is connected to the handpiece 4. Passive thermal control system is also equipped with a low temperature termoacumuladores 14 with a substance having a temperature of phase transition from solid to liquid and back) at the required level.

At different levels along the penetrator 3 fixed insulated containers 15 for sampling of soil, each of which is equipped with independent rotary mechanism for opening/closing. The body of each container 15 is made of a thin sheet of stainless steel in the shape of the glass, lower the bottom of which is open, and the top has lugs from the outside to secure it n is the penetrator 3. The design of the container 15 is thermally insulated walls to keep the temperature of the retrieved soil. This insulation is provided by the execution of the walls of two layers of thin-walled stainless steel (0.1-0.5 mm) with a gap between them of not less than 1 mm (thermal insulation).

The rotary mechanism of opening/closing includes an axle 16 which is fixed to the container 15. The axis 16 is installed torsion spring 17, the aim of which is to ensure tight closing (turning and pressing the open bottom of the container 15 to the body of the penetrator 3. To rotate the container 15 to facilitate sampling of the soil and its discharge is used electromagnetic mechanism 18 mounted in the upper part of the container 15 and triggered by the operator's command.

Groundsamine the device operates as follows.

The first step is drilling at the maximum desired depth, for example, at 2 PM In the drilling process control drilling speed and temperature of the tip 4 of the penetrator 3. For example, for the study of water on the moon (in the form of ice) soil temperature at a depth of 0.5 m to 2 m is about minus 120C. During drilling at a speed of 50 mm/min is heated tip 4. Valid in our case, the maximum temperature during drilling shall not exceed minus 110C. the purpose of maintaining this level in the present invention is provided by a low-temperature heat pipe 13 and thermoacoustic 14 with a working body type ethanol, having a transition temperature at minus 114.5C and a specific heat of melting point 108 kJ/kg.

Regulation of drilling speed is determined by the melting time of ethanol under heating from drilling and subsequent cooling of ethanol to minus 120C. Preliminary assessment showed that depending on the breed of soil option of drilling to a depth of 2 m and without interrupting the drilling process only by reducing the speed of drilling.

After the desired depth of drilling and the shutter speed for establishing the desired temperature, for example, in our case minus 110C, you can start sampling soil sample.

When drilling the penetrator 3 with special grooves to exit depleted soil, distributes along the drilling channel, the soil is loosened. Soil samples for analysis in the drilled hole are given the command to reverse the penetrator 3 by approximately 50 mm (over the length of the container 15). Then the command is given to the electromagnetic mechanism 18, through which the rotation of one or more of the containers 15, and the movement of the penetrator 3 down in the direction of drilling. In the opened slit in the bottom of the container 15 when the downward movement occurs, the soil samples. Then the command is given to shut off solenoid mechanism 18 and by spring 17 and later under the EMA of the penetrator 3 is closing the holes for soil collection.

Subsequent soil samples from other depths (1.5 m, 1.0 m and 0.5 m) occurs on the similar technology at the expense of consecutive stops when removing the drilling tool from the well.

After removal of the penetrator 3 well manipulator 2 working tool is mounted on the device for receiving ground 19. At the command of the operator turns on the electromagnetic mechanism 18 specific container 15, which rotates the container 15 with the ground and the ground through the open channel due to forces of gravity poured on the ground. In addition provided the attack of the penetrator 3 on the surface of the device for receiving the ground 19 for a complete deterioration of the soil from the container 15.

The use of the proposed device allows to obtain samples of the soil to the required depth with a temperature corresponding to the temperature of the occurrence of the breed, which allows a qualitative study of the composition of the soil in the place of its occurrence and to obtain deep borehole for one drilling.

1. Groundsamine device containing a drilling rig with a control system and a penetrator mounted on space landing module, and attached to the penetrator, at least one container for collection of soil samples, characterized in that the container is made of thermally insulated, and brown the second unit is equipped with temperature sensor tip of the penetrator, connected to the control system of drilling rig.

2. The device according to claim 1, characterized in that the drilling rig is equipped with a passive thermal control system that includes a heat pipe in the heat pipe, the evaporation zone which is connected to the tip of the penetrator.

3. The device according to claim 2, characterized in that the passive thermal control system is equipped with a low temperature termoacumuladores operating mode of the phase transition.

4. The device according to claim 1, characterized in that it has a number of insulated containers that are located at different levels along the penetrator, and each container is equipped with independent rotary mechanism for opening/closing.



 

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