ES2293425T3 - RECEPTACLE FOR TUBULAR DRILLING TOOL. - Google Patents

Abstract

The device has a radial locking pin (4) that engages an appropriate opening of the drilling tool. The locking pin is rotatably and adjustably arranged in casing (17) and there is a radial journal (16) on the locking pin that engages an elongated helical window (18) in the casing. Viewed from the surface of the casing the window lies diagonally to the axis of rotation of the locking pin and casing in the front region and is aligned transversely to the axis of rotation in the rear region. The locking pin can be rotated by a crank-shaped lever (14) transverse to the axis of rotation with a pneumatic cylinder (11) acting upon it.

Description

Receptacle for tubular tool drilling.

The invention relates to a receptacle for a tubular shaped drilling tool on a mechanism of drilling with locking bolts in radial arrangement, which gear into a corresponding opening of the tool drilling.

The fact of vertically penetrating the soil as a tool large tubes by means of rotation and / or vibration movements is part of the state Current technique in the field of public works. We know for this reason, as a drive unit (see for example DE 100 23 467), drilling mechanisms that are placed on the upper end of the drilling tool and are attached to it by locking bolts that must be inserted laterally into The drilling tool.

How this coupling process should occur up to a height of 6 meters and must be done very quickly often according to the depth of the perforation and the drilling speed, is in the known state of the art that the locking bolts are displaced in the tool drilling by means of a pneumatic or hydraulic jack and be also removed from it.

It is usual this time that the extreme turned inside the locking bolt have a cone shape or truncated cone in order to make a blockage possible, even if there is no exact alignment with the opening in the tool drilling. This situation may occur, for example, if the drilling tool is slightly deformed or if small stones or other hardened stains are stuck between the tool receptacle and drilling tool. This situation may also occur during service. It must, in these cases, exert a very large force on the tool perforation, which ensures for example that foreign bodies are expelled or that the slight deformation of the tube is corrected. It results from this fact that the entry of the locking bolt, which is normally without effort, you can demand in these situations of limit operation, an extremely driving force high.

Another essential inconvenience of the devices of tool receptacle known so far is that the technical aspect of security has been little taken in consideration in the chain of interconnections from the control of coupling of the machine driver until the effective entry of the locking bolt on the tool. It is desirable to define completely and make transparent the causal interconnection in all the sections from the transmission of the order to the actor and to the turn to the driver through sensors, and thus obtain a completely safe drilling tool receptacle.

Another essential inconvenience of receptions of tools known so far is the problem of the transmission of energy and information from the fixed part of the complete arrangement of the machine to the receptacle of tool going through the drilling mechanism. The state of the technique for this consists among other things in guides pivoting The latter have the disadvantages of costs very high investment, of a heavy-duty vehicle and are subject to heavy wear. Hydraulic oil dripping in the pivoting guide can not only render the receptacle of tool, but also make a fault diagnosis difficult. In addition, the suppuration of hydraulic oil is itself a source of secondary and / or accident damage.

We know, to avoid such hydraulic guidance pivoting, that the hydraulic jacks, the hydraulic control of which It is part and the hydraulic pressure tank is limited on the tool receptacle. The system control is electric. The transmission of energy from the fixed part to the part In rotation it is also electric. We propose collecting rings for this. However, their brushes and their circular bands are very sensitive to the occurrences that appear, moisture causes Long term corrosion, the dust that appears acts as a abrasive and reduces the life of the collector rings so drastic.

It is due, to obtain an optimum useful life, subject the slip rings and brushes to a process of commissioning at the end of which what is called a patina on the surface of the bearing rails. This patina reduces corrosion sensitivity, but allows driving electrical enough. Flows are needed exactly for this defined over a minimum duration of operation at a minimum rotation speed.

A service should also be used average rotation speed and an average current located in the commissioning area. This can be done with a certain probability for the pump power supply intended to create hydraulic service pressure. Not however It is in principle the case for the collector ring tracks, which are used to transmit data or orders.

The drawbacks mentioned above show the significant effort at the time of putting in operation and at the time of operation of the rings electric collectors It is desirable, for this fact, to create a device to transmit orders, to transmit in return the information that comes from the tool receptacle at machine driver and to transmit the energy that can be considered, from the point of view of its mechanics, as without wear or suffering only weak wear.

       \ newpage
    

There is a risk, because of the importance of forces that appear during work, that the locking bolt move involuntarily and that, in the extreme case, the blockage undo and release the drilling tool. The risks considerable technicians that result from it, from the point of Security view, they are obvious.

Starting from this, the invention is given as objective to create a tool receptacle for which a involuntary and accidental opening of the locking bolt is widely  excluded.

This task is solved by a receptacle for a tubular shaped drilling tool on a mechanism drilling with a radially arranged locking bolt, that engages in a corresponding opening of the tool drilling and characterized by the fact that the locking bolt is arranged in a cartridge to pivot and slide and that on the locking bolt there is a pivot rotated radially towards the outside, which engages in an oblong type frame that passes by this cartridge, knowing that the frame, seen from the Cartridge surface, runs along the front in the direction oblique in relation to the axis of rotation of the locking bolt and the cartridge, and that the locked position, at the rear, is arranged obliquely in relation to the axis of rotation, knowing that a rotation can be made to the locking bolt thanks to a lever that is shaped like a crank and arranged transversely to the pressure cylinder acting on it.

Receptacle Locking Bolt tool should not only be inserted by sliding in the openings of the drilling tools, but introduced in the tool by means of a supplementary rotation movement in a corresponding guide, at the beginning quickly and with little effort, execute a fine adjustment towards the end of its introduction of the drilling tool in the receptacle, and that you cannot be ejected backwards out of this locked position by the drill tube. The drag for this movement of rotation should allow, thanks to a demultiplication corresponding to a pressure cylinder, at the beginning of blocking movement a high speed and a weak force of drive and limit the input speed in the area of the blocking position, but exerting a contribution of strength so raised as possible in the direction of pressure. Bolt lock must also be directed to be brought beyond its locked position, to a stable position that cannot be taken out other than by shaking or vibration without direction He needs to act on him.

A central idea of the invention is the displacement of the locking bolt through a directed pivot by an oblong screw-shaped frame passing through the frame. This oblong-shaped frame passes, seen from the surface of the cartridge, obliquely in relation to the axis of rotation of the locking bolt. If the frame oblong - contrary to the central idea of the invention - it will present the lower oblique position (mounted) on the whole area, it would correspond in effect to a brush or a thyme well known. The particularity of the invention, however, is that the pivot can, thanks to its circular shape, continue without problem different oblique (mounted) frame positions. Is thus it is possible to put the frame in a very oblique position (mounted) in the pivot entrance area. The locking bolt reaches a relatively high input speed in this area. This zone transition to the pivot lock position. He rack passes, in the area of the locked position, perpendicular to the axis of displacement of the locking bolt, it is say that the pivot no longer moves in the longitudinal direction of the locking bolt in the area of the locking position. In this position, the forces exerted on the conical part of the locking bolt can no longer jump the locking bolt out of the tool.

It is possible to further increase reliability of the operation of the tool receptacle causing the frame is extended by a contiguous recoil zone of safety beyond the locked position. This area of the frame obliquely passes, in turn, a little obliquely with relation to the axis of rotation of the bolt, but in the opposite direction with relation to the entrance area. In case of directed forces successively in the longitudinal direction of the locking bolt a cause of a game between the tool receptacle and the tool and without precise direction - what is called shaking and vibrations - be exerted on the locking bolt, the risk that the locking bolt jumps is clearly reduced.

We further increase security by setting the pivot in its locked position or in its reverse position of security with the help of a blocking device. This lock is pressed on the bolt pivot with the help of force of a spring This lock prevents the locking bolt from getting detach when subjected to intermittent forces without precise direction (vibrations and shaking).

Another essential advantage is the definition of a energy tank designed to have enough energy to provision for several cycles. A tool receptacle according to the invention proposes several advantageous configurations of the pressure tank We know the case in which we have a simple pressure tank on the machine case. This pressure tank is fully exposed to vibrations consecutive operation of the tool receptacle. The invention prefers, to save the necessary stumbles and costs, shell-shaped pressure deposits that are inserted as the section of a cylinder in the outer wall of the receptacle of tubular shaped tool. The form of this deposit can be also described as the section of a ring, as a base form, on which the walls are mounted vertically. The tanks reinforce, with several sections of similar cylinders, the structure of the tool receptacle forming grooves on the surface of the latter. These grooves are however arranged so flatly on the base body that a drill tool receptacle according to the invention It has only a relatively small diameter.

       \ newpage
    

In a tool receptacle according to the invention, the locking bolt is introduced into the tool drilling through a rotation movement because it is guided with different oblique (mounted) positions by its axial pivot turned outward that engages in the frame Oblong. The frame therefore represents a conversion not linear between the rotary movement and the linear movement of the locking bolt That's why different drag systems are feasible for the rotary movement of the bolt. The posibilities are to print the movement by a pneumatic drag rotary, a rotary hydraulic drive or an electric motor rotary. The invention however prefers to put on the bolt of lock a crank lever displaced by a jack. This provision is not only simple and economical, but introduces, through the combination of the crank and the cat, a new nonlinear characteristic, but sinusoidal in the chain of power transmission

What is advantageous is to arrange the crank of shape that is held, at the point of the course of the movement, in the Vertical piston rod of the pressure cylinder, the part Conical locking bolt being completely out of the inner surface of the tool receptacle. Here, Enter the drilling tool. In case of inaccuracies if any, the cone of the locking bolt must act on the drilling tool and sometimes exert significant forces with arrangement of inaccuracy appeared. We need, in this final phase of the introduction of the locking bolt, very important forces, but no particularly high process speed - contrary to the beginning of the introduction phase of the cap screw.

As a result of rotating bolt drag locking by means of a crank, the crank is placed with a certain angle visible from the outside, which marks the blockage sure. Therefore, the invention proposes to make this position zone angle of the crank visible from the outside for the driver of the machine by putting a screen in front of the crank allow the driver to recognize the crank only in this area of angular position The same crank serves as a device Safe lock indicator.

It is possible to extend this reliable display of the lock provided on the axis of rotation of the bolt locking or on the crank a position transmitter by means of the which can pick up an electrical signal, for example, indicating that The crank is in the bolt lock zone. The invention proposes, as indicators of effective values, magnets, Hall generators, encoders or other systems electronic The latter must be connected in all cases with a supplementary locking fixation on the receptacle of tool. What is feasible, for example, is a lamp or put a supplementary fixing lever. Is reasonable Also connect this information to a remote control system.

He is the linear actor, preferably in this invention a pneumatic jack, which is the next link in the chain of the governing bodies before being questioned in the communication control circuit of the blocking control by the machine driver, from the transmission of this order to tool receptacle, of executing this order to activate the power supply, of the arrival of the fluid energetic about the actor, of the conversion of the linear movement in a rotating movement, from the taking of the current position of the angle of this rotary movement, of the evaluation of the position to differentiate between open / closed lock of the message back to the machine driver, optics through the same or electronic lever. The invention also proposes to mount Effective position sensors on the pneumatic jack in order to constitute a reinforced safety tool receptacle.

Another safety link should be control of a sufficient reserve of sufficient energy in the deposit of energy, ie monitoring, for example, of a pressure minimum pneumatic in the compressed air tank. We already describe For this a pressure gauge. Another possibility is an electronic sensor of pressure that can be estimated through the control port remote.

Storage and power supply for the operation of the locking bolt in the receptacle of tool, which comes out without complicated rotating guides, is part of the central ideas of this invention. The inconveniences described at the beginning of a hydraulic rotary guide also they are valid in principle for the pneumatic rotary guide with the difference that the expelled air does not cause as a rule No secondary damage. We already describe in detail one electric transmission of energy by means of brushes and by means of collecting rings, with all the inconveniences that this It represents.

We can contemplate in principle, to transmit electrically energy without parts in contact mechanically, a inductive coupling: an inductor coil on the part stationary is arranged concentrically within another coil on the rotating part. An electric current alternative in the stationary part generates a magnetic field pulsating through the rotating part thus producing electric current. This electric current can be directly used as a source of energy for a drag Electric locking bolt. An appropriate extension of said electrical system is a plug battery that ensures reliability of the system as a whole, even in the event of a short-term failure of The power supply. In the case of a pretty version protected, in the mechanical plane, against vibrations, for example through a smelting coil, this type of feed Electric does not suffer wear.

A variant of food utilization electric is the electric drag of a pneumatic pump for Feed a reservoir of compressed air.

       \ newpage
    

We are tempted, according to the current state of the technique, of using electrical energy also to make operate the remote control through a radio system, infrared or ultrasound. Electric power is also predestined to feed the electronic elements to capture the effective position on different points of the drive mechanism for the locking bolt.

A particularly economical solution is to make operate the tool receptacle pneumatically. The The invention proposes a pressure vessel for this purpose. Alone very small investment costs appear when a deposit is set mass produced inside the tool receptacle. Another variant according to the invention is to mount tanks that have the shape of section of cylinders on the outer wall of tool receptacle. This invention also meets the stiffening groove function of little hindrance in addition of the compressed air tank.

The invention proposes, to continuously charge the compressed air reservoir, a supplementary cylinder of pressure on the piston rod in which a mass of inertia, knowing that the piston rod is oriented in the direction of the percussion movement of the tool drilling and that the pressure cylinder outlets are connected to the compressed air tank through valves non-return and through pressure ducts. This arrangement represents a non-contact transmission of energy in the tool receptacle A particular advantage is that it is not it is necessary to place a supplementary device outside the tool receptacle It's more like the percussion movement What we call drilling tool. As the need in Tool receptacle power is almost negligible in comparison to that of energy for percussion movement, not it is necessary in practice to strengthen the percussion movement.

The receptacle is subject to acceleration Very strong after each percussion movement. This acceleration is also felt by the mass (inertia on the supplementary pressure cylinder. It is formed on the mass of inertia, because of its inertia, a force vector that goes in the opposite direction of percussion movement. As the mass of inertia is mobile in this direction above the rod of the piston, the piston moves inside the pressure cylinder and puts of manifesting pressure. The increased air pressure appeared for this reason it is transferred in the compressed air tank to through the pressure line and the non-return valve. Mass of inertia will move the piston in the pressure cylinder with relation to the rest of the tool receptacle until it stops of opposite retention and will return, with a temporary delay, for each percussion movement.

Another variant according to the invention of this compressed air supply consists of using the process of placement of the tool receptacle on the tool. The supplementary pressure cylinder must be arranged for this variant so that your piston rod goes in the direction of the drilling tool wall. The piston is pressed down in the idle state of the tool receptacle of drilling, that is without tool inserted. The piston is pressed into the pressure cylinder when the tool perforation comes to be put on the edge. Compressed air formed by this fact is transferred in the air tank compressed through the pressure line and the valve non-return The spring pushes the piston rod again down when the drilling tool is raised. This lifting also reveals compressed air that feed the compressed air tank. It is evident that the supplementary cylinder must be designed so that its quantity of energy cover the energy requirement of the locking bolts and also create a certain security reserve.

We can also properly use both possibilities of autonomous feeding without pivoting guide for A hydraulic variant

It is, in the practice of the receptacle of tool, of a very economical variant in terms of loading the compressed air tank approximately once a day of work through a flexible tube and through a compressor external that already exists in series on the carrier. Is naturally necessary for this that the energy deposit is designed so large enough to store the set of Locking and unlocking movements.

The set of reflections cited It is previously valid. according to the invention and in principle also for a fully electric operating system of the tool receptacle The invention proposes two variants for the electric drive of the locking bolt. In the first variant, a rotating electric motor drives the locking bolt, to through a direct coupling or through a coupling by means of a gear and thus puts it in rotation. In this variant of drag too, the locking bolt is directed with different oblique (mounted) positions in a rack using a pivot arranged axially and through, in each operation of lock, entry zone, retention position and (if any) The safety recoil zone.

Another variant of an electric drag consists of in replacing the pneumatic or hydraulic jack with a drag linear electric. The linear electric drive acts, by means of the crank, over the locking bolt and rotates it.

We can also contemplate, in the variant of electrical operating system, an electromagnet surrounding the locking bolt and tighten it on the tool to lock it.

Another variant according to the invention consists in replace the locking bolt that enters axially in the drilling tool by a locking clamp. The locking clamp pivots around a passing shaft parallel to the drilling tool and is arranged on the outer wall of the receptacle of the drilling mechanism. The advantages of this provision are the low overall volume (more compact dimensions) and the low recoil under the effect of the forces that the drilling tool exerts on the part Conical locking clamp.

We propose, for the rotation movement of the locking clamp according to the invention, a jack arranged tangentially to the outer surface of the receptacle of tool and that executes the rotation movement by means of a supplementary guide point on the locking clamp.

In this case too, the guide point of the cat pressure can be chosen so that the lever effect is maximum when the locking clamp penetrates the tool Conical perforation.

Another drag variant according to the invention for the locking clamp it consists of putting a frame in screw shape on the drag clamp. This frame corresponds, in its path and in its structure, to the frame of form oblong already described in detail above for the pivot on the locking bolt. The advantages thus obtained are also worth for this drag variant of the locking clamp pivoting In this case too, it is a cylindrical pivot that is gear in the frame and guided linearly in the direction of rotation of the locking clamp that is used for movement. The invention proposes, as a functional safety character Supplementary, a very generous design for this guide. If the tools were not adjusted correctly or in the case of slightly deformed tools and the reactive effect that results from considerable forces on the locking clamp backwards, in the rotation mechanism, a guide designed with sufficient dimensions to be able to block this movement.

We still have to underline, as one of the important advantages of this invention, the fact that even for the arrangement of a clocking clamp that can be pivoted, the guide of the drag is carried out through a frame in the form of screw with alternating rises. The advantage of an entrance area especially defined by an inefficient retention position of round and round of safety is also effective for this lock variant

It is advantageous to obtain a receptacle particularly safe of the tool as well as a message from particularly detailed return on the service status of All elements in the blocking movement, provide for a control remote to transmit the driver's order to the receptacle of tool. This remote control avoids the guide problem pivoting Another advantage consists in the fact that the route of Transmission is not restricted by moisture and dirt. Is possible and judicious, according to the state of the art, protect and dampen the receiving unit against vibrations in the tool receptacle

That is why the invention proposes, as advantageous version, that this transmission path is also used to transmit the information back to the driver of the tool receptacle. We must mention, for the example of the variant with pneumatic drag through a cylinder of pressure, judicious information about the pressure in the tank compressed air, the position of the cylinder and the positioning of the angle of the lever on the locking bolt.

The invention proposes, in the interest of an increase of the safety of operation and the availability of the tool receptacle, for the pneumatic variant example  with pressure cylinder, integrate into the feed line of the pressure cylinder, to drive the locking bolt, a reversing valve that can be reached from the outside, knowing that a supplementary pressure cylinder, in which the piston rod can be displaced through a handle that It can be reached from the outside. This provision is then advantageous as an emergency service mode when the deposit of compressed air no longer has sufficient reserves or when the remote activation of the valves to activate the different Cylinders has had a breakdown. It is possible in this case to proceed to an urgent actuation of the lock according to the following development: step of the pressure cylinders to manual mode and pumps on the handle in order to operate the locking lever. We save the complicated disassembly of the lever connection in the form of crank towards the pressure cylinder.

Other details and features of the invention They are clarified below. The examples described should not restrict the invention, but only clarify it. They are represented schematically:

Figure 1 Side view of a receptacle drilling mechanism 1 with four locking bolts 4 that are operated by crank 14 and through the cylinder of pressure 11 as well as a pressure vessel 5 mounted on the Exterior

Figure 2 Locking bolt 4 with hand crank drag 14 and pressure cylinder 11

Figure 3 Locking bolt 4 with shaped lever crank 14 and pressure cylinder 11 in two positions different

Figure 4 Side view of a locking bolt 4 with crank-shaped lever 14 and pivot with axial orientation 16

Figure 5 Side view of cartridge 17 with oblong-shaped frame 18 to guide pivot 16

Figure 6 Frame 18 to guide pivot 16 with supplementary lock 26 and pressure spring 27

Figure 7 Locking clamp 21 with frame in the form of screw 18 and linear displacement pivot 16 which goes to fuck the latter

Figure 8 View of a locking clamp 21 and of a linear guide 25 of the pivot 16 which engage in the locking clamp 21 in frame 25.

Figure 1 shows the side view of a complete tool receptacle 1. We recognize the disk pivot 2 to couple tool receptacle 1 to a drilling mechanism The lower end 3 of the receptacle of Tool 1 is drawn in cut. This part of tubular shape It falls on the tubular shaped drilling tool.

Two side view locking bolts and one locking bolt in rear view are drawn between the four locking bolts 4. What is represented each time, is the lever 14 in the form of a crank to drive the locking bolt 4 and the piston rod 13 of the pressure cylinder 11 retained above. We show how the pressure cylinders 11 connect each with the compressed air reservoir 5 through pressure ducts 9 and of guide valves 10. The compressed air reservoir 5 is, in this variant, represented as a tank mounted outside without Integration into the mechanical assembly of the tool receptacle. What is also introduced on the drawing is the pressure gauge 8 for record the compressed air in the compressed air tank 5 as well as the control device box 12 with the remote control containing.

A locking bolt 4 is shown in view. side in figure 2 as a unit that comes from figure 1. The pivot assembly is shown in section in the pivot area arranged above in the axial direction. It shows in cut the lock cartridge 17 into which the lock bolt 4 rotates. Side view of frame 18 in oblique arrangement is suggested and oblong to guide pivot 16.

The piston rod 13 of the pressure cylinder 11 is articulated at the end of the crank-shaped lever 14. The piston rod 13 is fully inserted in the cylinder of pressure. The pressure cylinder 11 can be fixed on the outer wall of the tool receptacle for power swing

Locking bolts 4 are shown seen from behind in figure 3, that is to say that the gaze is going, in the direction to the movement of the locking bolts in the tool drilling. What is represented is the cartridge arranged so concentric around locking bolt 4.

The crank-shaped lever 14 and the cylinder Pressure 11 are represented in two positions. In position shown on the left, the piston rod 13 is totally inside the pressure cylinder 11. In this position, the tip of locking bolt 4 is at wall height inside the receptacle of the drilling mechanism 1 (see position shown in figure 2), is shown in figure 3 a the right angle position of the lever 14 in the form of crank in which the piston rod 13 fully exits the pressure cylinder 11. It is in this angle position that the bolt lock 4 has gone deeper into the tool drilling.

Figure 4 shows a side view of the bolt lock 4 with lever 14 in the form of a crank welded on the same. The area in the area is partially cut which is pivoted the pivot 16 turned outwards in the axial direction

We can see the cartridge 17 on figure 5. The frame 18 to guide the pivot 16 is shown in detail in the cartridge 17. The input zone 181 is marked on the side upper frame 18. In this area, the frame passes with a oblique inclination relative to the longitudinal axis of the cartridge 17. It is followed by the retention position zone 182. In the zone of holding position 182, the frame passes transversely with relation to the direction of movement of the locking bolt. After is the safety recoil distance zone 183 of the frame 18, in this area, frame 18 passes again so oblique in relation to the axis of displacement of the locking bolt 4, but inclined however on the other side compared to the entrance area 181, although the pivot 16 that moves in the Frame 18 moves back a little.

Figure 6 repeats the side view of the cartridge 17. The side view is completed in Figure 6 by pivot 16. In this representation, pivot 16 is between the area of entrance 181 and safety recoil distance zone 183. In the retention position represented, of the locking bolt, this last penetrates deeper into the tool of drilling.

A locking device 26 is shown, pressed on the pivot 16 by the pressure spring 27. It clearly recognizes that the locking device prevents the pivot 16 return to the entrance area 181.

Figure 7 shows a three-dimensional view of the locking clamp 21. It is recognized, on the clamp of lock 21, a frame 18 along the axis of rotation 23. This it also has an oblique path here, as in the provisions presented above. This scheme makes plausible the fact of that, in this arrangement, the frame can be configured with different oblique (mounted) positions.

The direction of rotation of the clamp lock around the axis of rotation 23 is indicated in figure 7 in the form of a double arrow. Pivot 16 engages in the frame  18. The pivot 16 is fixed on the support 24. The support 24 It is directed linearly through the vertical guide 25. This guide is oriented parallel to the axis of rotation 23. A Rotating movement of the locking clamp 21 is created by the linear movement of pivot 16 in frame 18 and by its oblique positioning (mounted). It is recognized on the edge bottom of figure 7 the end of the piston rod 13, which move support 24 through pivot 16.

Figure 8 shows a section through the tool receptacle 1 and the drilling tool that is received there concentrically. The opening in the drilling tool 15 and tool receptacle 1 in which engages the locking clamp. The part of the locking clamp that engages in the tool perforation 15 is depicted on the figure. It is drawn in cut the part of the locking clamp 21 in which the 18 screw-shaped frame. The pivot 16 is represented in Full view. The support 24, which passes through the vertical guide 25 It is presented again in court. Two rollers to guide the support 24 is drawn on vertical guide 25. It is recognized next in the figure the fixing of the piston rod 13 on the support 24.

Reference List

one.

Tool receptacle (of drilling)

2.

Pivoting disc for coupling the tool receptacle on a mechanism drilling

3.

Bottom end of tool receptacle one

Four.

Locking bolt

5.

Compressed air tank

6.

Pressure line to connect several tanks compressed air 5

7.

Overpressure valve

8.

Pressure gauge for compressed air tank 5

9.

Pressure line to connect the cylinder pressure 11 with pressure reservoir 5

10.

Control valves for the pressure cylinder eleven

eleven.

Pressure cylinder

12.

Control device with remote control

13.

Pressure Cylinder Piston Rod eleven

14.

Crank-shaped lever to operate the locking bolts 4

fifteen.

Drilling tool, shape tubular

16.

Pivot for guide (screw-shaped) through the frame 18

17.

Cartridge with frame 18

18.

Frame, oblique and oblong, for guide pivot 16

19.

Mass of inertia

twenty.

One way valve

twenty-one.

Locking clamp in place of bolt lock 4

22

Supplementary articulation point on the locking clamp 21

2. 3.

Rotation axis of the locking clamp twenty-one

24.

Support for pivot 16 that engages in the frame on locking clamp 21

25.

Vertical guide for support 24

26.

Locking device for pivot 16

27.

Pressure spring for the locking device 26

181

Entrance area to frame 18 for the pivot 16

182.

Frame retention position zone 18 for pivot 16

183

Safety recoil distance zone frame 18 for pivot 16.

Claims (20)

1. Receptacle for a drilling tool 15 tubular in shape on a drilling mechanism with a locking bolt 4 in radial arrangement that engages in a corresponding opening of the drilling tool 15, characterized in that

?

lock bolt 4 is arranged in a cartridge 17 to be rotated and displaced Y

?

there is about locking bolt 4 a pivot 16 turned outward radially, and which is it engages in an oblong, thyme-shaped frame passing through the cartridge 17, knowing that seen from the surface of the cartridge 17, the frame 18 passes through the front obliquely with in relation to the axis of rotation of the locking bolt 4 and in relation to the  cartridge 17 and is oriented, at the rear (of the position lock 182 of pivot 16) through the axis of rotation Y

?

the locking bolt 4 can be rotated by means of a crank-shaped lever disposed of through the axis of rotation with a pressure cylinder 11 acting on top of it.

2. Tool receptacle according to claim a, characterized in that an energy reservoir, for example a compressed air reservoir 5, is fixed on the receptacle; which is designed so that the energy that is stored there is sufficient for several duty cycles of the locking bolt. 3. Tool receptacle according to one of the preceding claims, characterized in that the frame 18 also has on top, at the rear (locking position area 182 of pivot 16), with a vertical path relative to the axis of rotation, an extension that comes to be linked having an inverse oblique path relative to the input zone 181 (safety recoil distance zone 183 of the frame 18). 4. Tool receptacle according to one of the preceding claims, characterized in that a locking device 26 penetrates the frame 18 and through a pressure spring 27 that is not fed by a force in the direction of the axis of rotation of the bolt, knowing that the locking device 28 is arranged to be able to be moved in the direction of the axis of rotation of the bolt. 5. Tool receptacle according to one of the preceding claims, characterized in that the crank-shaped lever 14 is arranged so that the crank-shaped lever 14 is vertical of the piston rod 13 of the pressure cylinder 11 for the angle of rotation of the locking bolt 4 in which only its truncated cone-shaped tip exceeds the inner wall of the tool receptacle 1. 6. Tool receptacle according to one of the preceding claims, characterized in that a screen is arranged so that the crank-shaped lever 14 is visible from the outside only in the area of its angle position in which the bolt lock 4, which can be displaced by the lever 14, is partially located outside the cartridge 17 (lock position), for example through a circular opening in the screen, and is out of sight from the outside in the Other angle positions. 7. Tool receptacle according to claim 6, characterized in that the crank-shaped lever 14 is equipped with a position indicator that can indicate outside when the lever 14 reaches the angle position at which the bolt Lock 4 is in its locked position. A tool receptacle according to claim 7, characterized in that a magnet, a Hall generator, an encoder or other electronic position recording system is mounted as an effective value indicator, connected to a display element on the tool receptacle and / or, in the functional plane, to the remote control. 9. Tool receptacle according to one of the preceding claims, characterized in that the state in which the locking bolt 4 reaches the locking position can be recorded by the effective position indicator in the pressure cylinder. 10. Tool receptacle according to one of the preceding claims, characterized in that there is a supplementary pressure cylinder 11 for power supply, on the piston rod of which a mass of inertia 19 is arranged,

?

knowing that the cylinder of pressure 11 is oriented towards the percussion movement of drilling tool 15 and

?

knowing that the outputs of this pressure cylinder 11 are connected to the air reservoir compressed 5 through a valve to a track 20 and through pressure ducts

11. Power receptacle tool according to claim 10, characterized in that the supplementary pressure cylinder 11 is arranged so that

?

the piston rod 13 can be introduced into cylinder 11 when the receptacle of tool 1 is placed on a drilling tool fifteen,

?

there is a pressure spring or a gas cushion inside the pressure cylinder 11 to make exit the piston rod 13.

12. Tool receptacle according to one of the preceding claims, characterized in that the locking bolt 4 can be displaced by a direct linear drag or through a gear, knowing that the reservoir

?

electric is

?

electric or

?

tire or

?

hydraulic.

13. Tool receptacle according to one of the preceding claims, characterized in that the locking bolt 4 or the locking clamp 21 has a conical shape towards its end and on the outer side in the direction of the drilling tool 15. 14. Tool receptacle according to one of the preceding claims, characterized in that the hook-shaped locking clamps are inserted in the place of the locking bolt 4 and can be introduced axially into the drilling tool, with which they can reach the blocking state in the drilling tool 15 by rotation about a rotation axis 23 parallel to the drilling tool 15. 15. Tool receptacle according to claim 14, characterized in that a pressure cylinder 11 is arranged tangentially on the outer surface of the tool receptacle for rotating displacement of the locking clamp 21, which is connected to the locking clamp 21 by means of a supplementary articulation point 22. 16. Tool receptacle according to claim 14, characterized in that the screw-shaped frame 18 concentric to the axis of rotation 23 has a path similar to that of a brush guide, but with a variable pitch in which it engages a pivot 16, whose support 24 can be moved on a line parallel to the axis of rotation 23 through a guide 25 fixed on the tool receptacle 1 and is coupled to a pressure cylinder 11. 17. Tool receptacle according to one of the preceding claims, characterized in that the compressed air reservoir 5 has a base plane in the form of a ring section with side walls directed upwards,

?

knowing that the base frame tubular tool receptacle 1 simultaneously forms the inner wall of the tank 5 and

?

knowing that the outer wall of deposit 5 presents the form of a section of cylinder.

18. Tool receptacle according to one of the preceding claims, characterized in that there is a remote control 12 which has a reception unit in the tool receptacle and a separate detachable control and emission unit. 19. Tool receptacle according to claim 18, characterized in that it is possible to transmit data from the tool reception to the control unit, knowing that electromagnetic (radio), sound waves (eg ultrasound) or light can be used (for example infrared light) to send and transmit data. 20. Tool receptacle according to one of the preceding claims, characterized in that there is in the supply line 9 of the pressure cylinder 11 an inverting valve accessible externally to drive the locking bolt 4, to which it is connected a supplementary cylinder 11, in which the piston rod 13 can be displaced through a handle that can be reached from outside.