Sound-absorbing jacket for perforator

FIELD: construction.

SUBSTANCE: jacket for a perforator moving along a guide in a longitudinal direction attached to the perforator guide on its two sides and making, together with the guide, a substantially closed space, where there is a perforator and at least the main part of a drilling rod located outside a well. At least a part of the sound-absorbing jacket is formed of two shells, i.e. an internal shell located in an external shell and attached to it to form substantially a single stable structure and a space that contains air or other gas or a gaseous mixture.

EFFECT: invention ensures stiffness and lightness of the jacket structure, improved sound-absorbing capacity.

21 cl, 4 dwg

 

Background of invention

The invention relates to sound absorbing casing to drill a hole punch that moves along the guide in the longitudinal direction, and sound-absorbing casing is attached to the guide punch with its both sides so that the sound-absorbing casing together with the guide forms an essentially closed space, in which are located the punch and at least the main part of the drill stem, outside of the well.

When drilling hard rocks using rigs that contain one or more shafts mounted on the frame, and a hammer mounted for movement along the guide mounted on the bolt (arrows). The guide also often set at the end of the boom can be moved in its longitudinal direction by means of a separate carrier to enable the location of the guide in a predetermined position and in a given direction for drilling. Taking into account these various movements of the boom and guide the drilling rig is equipped with different cylinders to perform the move or known cylinders, actuated by fluid under pressure.

A typical problem in the drilling of hard rocks is the noise produced by perforadora the resulting impact on the cutting head of the tool and the impact of the instrument on a solid rock as a result of various other movements, such as rotation, etc. Noise, which is distributed around a considerable distance, continues to create more and more problems, particularly near residential areas. To prevent the introduction of restrictions on working hours or the site attempts have been made to solve the problem, especially when drilling surface using various sound absorbing enclosures around the guide, and a hole punch. Such solutions are known, for example, from the publications WO 2006/038850, WO 00/39412, patent, Sweden 523874, U.S. patent 3667571 and Japan patent 5-295978. The problem with all these solutions is that they are too difficult or they do not reduce noise across the rig floor. In addition, the mechanical device used to open a sound-absorbing casing with the replacement or extension drill rod, are complex and time-consuming. In addition, acoustic enclosures are quite bulky and heavy, making it difficult for their manufacture and use.

Brief description of the invention

The purpose of the present invention is to provide a sound-absorbing casing more lightweight design and best sound-proof ability.

Sound-absorbing casing in accordance with the invention is characterized in that at least part Svyatogo the surrounding casing is made of two shells, that is, the inner shell located in the outer shell and attached thereto for the formation of essentially steady uniform structure and the space containing air or other gas or gaseous mixture.

The idea underlying the invention is that the sound-absorbing casing at least partially is twocovering so that it contains the inner shell, the inner surface layer, and the outer shell, i.e. the outer surface layer, and an air space between them to create a hard and sound-absorbing structure. In accordance with the embodiment of the invention the sound-absorbing casing is made of many components casing attached to each other, each component is duoBLOCK.

The advantage of the sound-absorbing casing in accordance with the invention is that when using duoBLOCK design, in which between the shells is the air, the design of the sound-absorbing casing is rigid and light and its absorption properties are appropriate. This acoustic cover is also easy to make from, respectively, made according to the size and shape of the components, because the components are easy to attach to one another so that connections were made with Somozas the Oia.

Brief description of drawings

The invention is described below in more detail with the aid of the attached drawings, on which:

1 schematically depicts a drilling rig equipped with a sound-absorbing casing;

figure 2 schematically depicts a sound-absorbing casing 1 is a partial side slit;

figure 3 schematically depicts a side view of the sound-proof casing with an open covering part of the drill stem;

figure 4 schematically shows a section made along a-a in figure 3.

Detailed description of some embodiments of the invention

1 schematically shows a drilling rig 1, made with a base part 2. The base part is usually mounted on wheels or rollers, in this embodiment, as an example, on rollers 3. Arrow 4, which essentially may consist of one or several parts (figure as example, it consists of one part), connected in a known manner with the base part 2. The boom 4 can be any known, essentially, the design of the boom, so there is no need to describe the boom in more detail. Known, essentially a way, but not shown in the figure, arrow 4 pivotally connected with the base part 2 to allow rotation of the boom at a given angle relative to the base part by means of known, essentially, Silov the x elements, such as cylinders with a working medium under pressure or something similar.

One end of the boom 4, is able to rotate with carrier 5, which in turn are mounted on the rail 6 can be moved in its longitudinal direction. Guide 6 can move relative to the carrier 5 by means of the cylinder 6a medium pressure is known, essentially, by the way. Guide 6 provided with a known puncher (not shown) for drilling wells through a tool, that is shown in figure 2 drill stem and the well-known drill head connected with it. Guide punch, and part of the drill stem is surrounded by a sound-absorbing casing 7, the construction of which is described in more detail below.

Figure 2 is a schematic depiction of sound-absorbing casing side view in partial section. Sound-absorbing casing 7 is made, as example of two different parts: part 7a, which serves as a closing part for absorbing casing 7 on the drill rod, and part 7b, and each part is made separately.The number of parts may vary in accordance with the requirements of production process, this can be accomplished many parts. These parts are mainly attached to one another for the formation of a solid absorbent to Juha 7 (compounds accordingly, isolated, with sound-absorbing casing 7 is attached to the guide of drill in such a way as to surround the upper portion of the rail 6, the punch 8, the drilling rod 9 and the guides 10 and 11 of the punch. The closing part 7a mounted for movement in a transverse direction relative to the sound-absorbing casing 7 by means of a separate transfer cylinder 12. This is described separately in more detail in figure 4. In addition, one end of the sound-absorbing casing 7, i.e. the end facing the cutting head punch, made to allow part 13 for suction of dust and reduce noise.

Figure 3 schematically depicts a sound-absorbing casing with an open covering part 7a of the drill rod. It shows how the closing portion 7a, is required for the maintenance of the drilling rod 8, is lifted up from a sound-absorbing casing 7 for installation of the drill rod in the drill or extract therefrom drill rod. On the two end parts of the covering part 7a on two lateral sides of the boom 6 set the transfer cylinders 12, providing for the closing part 7a of the possibility of diversion from the sound-absorbing casing 7 and, thus, open to ensure maintenance of the drill rod and, accordingly, provide for the closing hour of the 7a and the ability to move so to stay connected with absorbent casing 7 during the execution of drilling.

For installation and retrieval of the drill rod when opening must be provided sufficiently large and long hole between the sound-absorbing casing 7 and the closing part 7a. Therefore, the transfer cylinders 12 in the longitudinal direction of the absorbent casing 7 and the boom 6 is located at a distance from each other, providing the ability to move the drill rod 9 from the position between the transfer cylinders 12 in position between the sound-absorbing casing 7 and the closing part 7a, and accordingly retrieve from there. The stroke length of the transfer cylinder 12 can be selected are different. Stroke length can be equal or different on different sides of the sound-absorbing casing, in this case, the closing portion 7a is forced to rotate in the transverse direction of the sound-absorbing casing 7 at a distance outside the stroke of the drill rod.

Figure 4 schematically depicts a cross section of a sound-absorbing casing, made by a-a in figure 3. As shown in figure 4, the sound-absorbing casing has two membranes, that is, it contains the inner shell 13a and the outer shell 13b and airspace 13c between them. Shell made of a material which can be easily formed, for example, by centrifugal is itia. Shell attached to one another at their edges for the formation of a uniform design in such a way that between the shells there is a space for 13c air or, if necessary, other gas or gaseous mixture. The actual shell is made of a material that is relatively well prevents the spreading of loud thuds, usually made of polyethylene or suitable plastic material. Thanks to the double shell design sound-absorbing casing is tough and it is well to suppress radiated noise.

Various intermediate part connecting the shell, can be installed between the shells, for example, walk-through like the stub connections for attaching various components to the sound absorbing casing. The cross sectional profile of the outer shell and the inner shell is made to provide a more rigid sound-absorbing casing and greatest attenuation of noise. On the one hand, allows to provide a rigid structure and, on the other hand, the movement of the closing part 7a of the sound-absorbing cover for its dense and stable bonding with absorbent casing 7 so that the gap between them was sealed, and soundproofing remained effective. Figure 4 also depicts how the sound-absorbing casing scrap aetsa with straps 14, attached to the lateral sides of the guide 6 by means of a separate fastening elements such as screws 15 or the like. Separate, for example, a softer sealing material with the best properties of noise absorption can be placed between the edges of the sound-absorbing casing 7 and the guide 6. The sealing material as such may also be the same material as was used for the rest of the sound-absorbing casing.

It should in particular be noted that the method of sealing a seam between the closing part 7a and sound-absorbing casing 7 is to use the inclined surfaces 16a and 16b on the edges of the sound-absorbing casing and closing part so that when the movement of the closing part 7a it is fastened with a sound-absorbing casing, while the inclined surfaces 16a and 16b are pressed one to another, forming compressed sealing seam. The joints between the closing part 7a and the rest of the sound-absorbing casing can be sealed and known by separate seals.

Shell 13a and 13b have ribs 17a-17d. In the shell 13a of the longitudinal edges 17a are located on the side of airspace 13c between the shells 13a and 13b, while the rib 17b, which is in the housing rebate, is located on the inner side of the shell 13a, that is, in the same itself is m space, as the punch. Similarly, in the shell 13b longitudinal edge 17c and transverse edge 17d is made on the side of the air space 13c between the shells 13a and 13b. Such ribs can be performed only in one of the shells or both shells in length or breadth. In addition, they can be performed either on the outer or on the inner side of the shell. If the edge is made between the shells, it can even take place completely to another shell. The ribs serve to stiffen the shell, if so required for the shell material. Ribs may be completely solid or hollow, or in the shell can be made folds.

The stroke length of the transfer cylinder 12 can be selected are different. They may be of equal length, or the length of the stroke can be different on different sides of the sound-absorbing casing, providing, so to speak, the ability to rotate sound-absorbing casing at a distance outside the stroke of the drill rod.

If necessary, the cover 7 can be located on a separate support elements attached to the sound-absorbing housing 7, such as, for example, the control of the arc 18 and the support rods 19 in the longitudinal direction of the absorbent casing to give it rigidity. Material arcs 18 and rod 19 may be solid, but preferably they are hollow tubular or QCD is icymi profiles, such as U-shaped, I-shaped and L-shaped profiles. Arc and terminals can be combined with each other or may be separate parts attached together. It is obvious that the supporting elements of the closing part 7a are owned by a single entity, while the supporting elements of the rest of the sound-absorbing casing, i.e. the part that is attached to the guide rail 6, are owned by a single entity. In addition, sound-absorbing casing 7 may be located noise dampening plate 20 made of a separate absorbing material that at least partially covers the inner surface of the sound-absorbing casing 7. Such a plate can be, for example, a perforated plate made of metal or other material attached to the supporting arcs 18 and the support rods to the opposite side of the sound-absorbing casing 7. Noise dampening plate can be, by necessity, completely or only partially perforated or even perforated. Noise dampening plate 20 can also be used without supporting elements, in this variant, it is naturally attached directly to the sound absorbing casing 7 so as to rely on a separate pivot bushing or the like, and/or to the ribs facing the inner space of VN the inner shell 13a.

In the above description and drawings the invention is described only by way of example and in no way restricted to this. A distinctive feature in that the sound-absorbing cover together with parts made of two shells that are located at a distance from one another so that between them provided the space for air or gas.

1. Sound-proof casing for the punch, moving along the guide in the longitudinal direction, is attached to the guide of drill on its two sides and constituting together with the guide (6)essentially enclosed space in which is located the punch and at least the main part of the drill stem, outside the well, characterized in that at least part of the sound-absorbing casing (7) is formed of two shells, the inner shell (13A)located in the outer shell (13b) and attached to education, in essence, sustainable a uniform structure and space (13C), containing air or other gas or gaseous mixture.

2. Sound-absorbing casing according to claim 1, characterized in that it is made of many components casing attached to one another for the formation of a sound-absorbing casing (7), essentially sealing the connection.

3. Sound-absorbing casing according to claim 1, characterized in that h is o contains a separate closing part (7a), able to move from its location for installing or removing drill stem (9).

4. Sound-absorbing casing according to claim 3, characterized in that the closing part (7a) mounted for movement relative to the sound-absorbing casing (7)essentially perpendicularly from the sound-proof casing (7) and, similarly, to the sound absorbing casing (7).

5. Sound-absorbing casing according to claim 2, characterized in that it contains a separate closing part (7a) can be moved from its location to install or remove the drill rod (9).

6. Sound-absorbing casing according to claim 5, characterized in that the closing part (7a) mounted for movement relative to the sound-absorbing casing (7)essentially perpendicularly from the sound-proof casing (7) and sound absorbing casing (7).

7. Sound-absorbing casing according to any one of p-6, characterized in that the closing part (7a) mounted for movement through the transfer cylinder (12)installed on both sides from the opening to the closing part (7a) and, similarly, on both ends of the closing part (7a) at a distance from the transfer cylinder (12) in the longitudinal direction of the absorbent casing (7)in excess of the length of drill rod.

8. Sound-absorbing casing according to claim 7, characterized in that the edges for Ryuusei part (7a) and sound-absorbing casing (7) is made with surfaces (16A, 16b), tilted one with respect to another in the same direction so that when closing the closing part (7a), they are, in essence, tightly pressed one to another.

9. Sound-absorbing casing of claim 8, characterized in that it contains a separate supporting elements attached to the absorbent casing (7), such as for example, the reference arc (18) and support bars (19) in the longitudinal direction of the absorbent casing (7) to stiffen the sound absorbing casing (7).

10. Sound-absorbing casing according to any one of p-6, characterized in that the edges of the closing part (7a) and sound-absorbing casing (7) is made with surfaces (16A, 16b), tilted one with respect to another in the same direction so that when closing the closing part (7a), they are, in essence, densely pressed to each other.

11. Sound-absorbing casing of claim 10, characterized in that it contains a separate supporting elements attached to the absorbent casing (7), such as, for example, the reference arc (18) and support bars (19), in the longitudinal direction of the absorbent casing (7) to stiffen the sound absorbing casing (7).

12. Sound-absorbing casing according to claim 11, characterized in that it includes at least one separate noise dampening plate (20)at least partially covering the inner surface of the absorbent is aguja (7).

13. Sound-absorbing casing according to any one of p-6, characterized in that it contains a separate supporting elements attached to the absorbent casing (7), such as, for example, the reference arc (18) and support bars (19), in the longitudinal direction of the absorbent casing (7) to stiffen the sound absorbing casing (7).

14. Sound-absorbing casing according to item 13, characterized in that it includes at least one separate noise dampening plate (20)at least partially covering the inner surface of the sound-absorbing casing (7).

15. Sound-absorbing casing through 14, characterized in that at least part of the surface noise dampening plate (20) is perforated.

16. Sound-absorbing casing according to any one of p-6, characterized in that it includes at least one separate noise dampening plate (20)at least partially covering the inner surface of the sound-absorbing casing (7).

17. Sound-absorbing casing according to item 16, characterized in that at least part of the surface noise dampening plate (20) is perforated.

18. Sound-absorbing casing according to item 16, wherein the noise dampening plate (20) is made of the same material as sound-absorbing casing (7).

19. Sound-absorbing casing according to item 16, characterized in that then noise dampening plate (20) is made of metal.

20. Sound-absorbing casing according to item 16, wherein the noise dampening plate (20) is attached at a distance from the surface of the inner shell (13A) sound-proof casing (7).

21. Sound-absorbing casing according to any one of p-6, characterized in that it contains equipment for serving punch.



 

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