KR20010114179A - Introduction assembly for reinforcement rods for drilling machines - Google Patents

Abstract

The introduction assembly 10 for the reinforcing rod 39 of the perforator 20 has a perforation assembly 30 capable of making a plurality of holes therein into which the reinforcing rod 39 is inserted.

The introduction assembly includes one or more beams or masts 28 for the reinforcing rod 39 and is typically disposed on one side of the perforation assembly 30. The mast 28 may have one or more working arrangements and working arrangements, and is movable from one side of the perforated assembly 30 to the other.

Description

INTRODUCTION ASSEMBLY FOR REINFORCEMENT RODS FOR DRILLING MACHINES}

The present invention relates to an introduction assembly for reinforcing rods of a perforator and to an introduction body which is widely employed without being limited to drilling a tunnel.

More precisely, the present invention is employed in machines that are used for compaction operations in the excavation of tunnels by making holes in the walls that are excavated in the holes into which appropriate compaction elements, known as reinforcement rods, are inserted.

The prior art involves drilling of tunnels and perforators that can make substantially horizontal holes in the walls to be excavated and introduce consolidation elements known as reinforcing rods.

The perforator is formed with one or two perforation assemblies comprising respective masts or guide beams having one or more rotary heads mounted to slide longitudinally;

By means of the head means a drilling tool, generally comprised of a rod element, is made to rotate to penetrate into the ground.

Each mast is also provided with a suitable guide element for holding the drill mechanism on the shaft and vice means capable of assembling and disassembling the instrument.

The mast is mounted with a segmented joint provided for this purpose on a telescopic column attached to a rotating plate and thus may have different inclinations and different extensions depending on where the hole is to be made.

The reinforcing rod is inserted into a hole which is immediately prepared by an introduction assembly in which a perforator is formed and generally associated with the mast supporting the rotating head of the drilling tool.

The mast is therefore quite heavy and presents a significant problem with regard to movement and functionality.

In addition, when the machine is in operation, once the reinforcement rods are picked up and inserted and inserted, the drilling of the holes must be stopped because it is impossible to use the mast simultaneously to drill holes and insert the reinforcement rods.

This requires longer time to complete the work cycle and reduces the productivity of the perforator.

A perforator has been proposed in which the assembly introducing the reinforcing rod includes its own mast on the support and moves autonomously with respect to the perforation assembly.

In this embodiment, however, there is a problem of interference between the mast and the means for supporting and operating the work assembly, particularly when the work assembly is operated in close proximity.

In addition, the actuating assemblies cannot cross each other, so that the perforation assembly must always be on one side of the introduction assembly and vice versa.

On the one hand, when it has to take on a position that is not operationally useful, this can cause the operator to interrupt one working cycle of the two assemblies, on the other hand, it limits the angle of rotation and the working area of both assemblies.

The present application is designed and implemented to overcome the above disadvantages and to achieve other advantages.

The present invention has an arrangement made within the main claims and the dependent claims describe other arrangements.

It is an object of the present invention to achieve an introduction assembly for a reinforcing rod for a perforator that can operate simultaneously by combining it without interference with the perforation assembly regardless of its position to optimize the work cycle of the perforator in which it is installed.

Another object is to achieve an introduction assembly for a reinforcing rod that can traverse the combined perforation assembly simultaneously, so that it can operate simultaneously within the entire area to be perforated.

The introduction assembly for the reinforcing rod according to the invention comprises a folding guide beam or mast which can have an extended working form and can move from one side to the other side of the perforation assembly of the perforator and allow for the combined movement of the introduction assembly. Fold to form of exercise.

The mast is telephoto mounted on a rotating means capable of performing an angular reciprocating motion to cover the entire area to be perforated to selectively place an introduction assembly between two positions approximately equal to the ground disposed on the opposite side to the perforator. It is associated with a pair of support shafts in the form.

In the kinetic arrangement, the mast can be included longitudinally in a space defined by the column-shaped support element of the perforated assembly, and by means of the shaft element associated with the mounted rotating means, the introduction assembly is arranged on the opposite side to initially operate the perforated assembly bottom. Can pass into position.

1 is a side view of a perforator with an introduction assembly for a reinforcing rod according to the invention in a first operating state;

2 shows the perforator of FIG. 1 in a second operating state.

3 is a schematic representation of the transverse section of the perforator of FIG. 1 with the introduction assembly in another position.

4 is a schematic front view of the perforator of FIG. 2 with the introduction assembly in another position.

5 and 6 are side views of the introduction assembly according to the invention in a first step of folding the operating state and the mast, respectively.

7 and 8 are plan views of a second stage of folding the mast of the introduction assembly of FIGS. 5 and 6.

In a preferred embodiment, the mast comprises a plurality of segments connected to each other by hinge elements and arranged vertically in an extended working arrangement and adjacent to each other in a folded movement arrangement.

In this embodiment the segment is folded and extended by an actuator means connected to the segment by lever means.

In one embodiment of the invention, the toothed profile is connected with the mast and the mobile trolley is connected and connected to the support and winding means for the hydraulic equipment of the perforator or to the support centering or the speed unit for the reinforcing rod.

Movable trolleys with the associated means they support can be moved to fold the mast correctly.

Thus, the introduction assembly according to the invention can be moved from one side of the perforated assembly to the other to be joined, and thus can be operated without disturbing the assembly over the entire area to be perforated.

As there is no need to interrupt the hole-making process to move the introduction assembly, this allows to increase the productivity of the perforator in which it is installed.

The above and other features of the present invention are apparent from the following description of the preferred forms of the embodiments given by way of non-limiting example with respect to the accompanying drawings:

With reference to the accompanying drawings, a perforator 20 in which an introduction assembly 10 for a reinforcing rod according to the invention is formed can be used to excavate to make a tunnel.

More precisely, inside the hole into which the reinforcing rod 39 is fitted to coincide with the excavation surface. Used to make multiple holes.

The perforator 20 is equipped with a frame 11 mounted on a truck 12 with four hydraulic drive stabilizer rods 13 on the ground to prevent the truck 12 from moving when it is operating. Include.

In the front and in the rear side the frame 11 is widened in two extensions 14, each of which is formed with a connecting support 15.

In both supports, each rotating plate 16 is mounted on the longitudinal intermediate plane " z " of the perforator 10 and aligned with the aligned horizontal axis of rotation " x ".

Two related columns 17, telescopic and independently driven, are associated with two rotating plates, which can carry out an angular reciprocation covering the entire area to be drilled (FIG. 4).

Each rotating plate 16 is mounted on a respective slider 34 which can be slid on a vertical guide column 25 suitably arranged in a column 17 on the longitudinal intermediate plane “Z” of the perforator 20. .

The column 17 supports the drilling assembly 30 comprising the mast or guide beam as the rotating head 19 is slidably mounted on the trolley 21 and can cause the instrument or the drilling rod 33 to rotate. .

The mast 18 is connected by segmented joints 22 that can be inclined to form non-horizontal non-horizontal holes.

In the two segmented joint 22 a coupling guide element of the front 40 and the rear 41 is mounted and the mast 18 can be axially slid by adjusting two cylinders 42, 43 connected thereto.

The system defined by the two cylinders 42 and 43 and the guide elements 40 and 41 not only distributes the stresses of the perforated assembly 30 on the two columns 17 but also the perforated assembly when the conditions are necessary to make the holes. The angle between the two columns 17 is enlarged and the inclination of the mast 18 is varied without risk of breaking or damaging the 30.

The centering trolley 23, which can hold the perforated rod 33 properly, is also mounted to the mast 18 and also equipped with two vises 24 for mounting or removing the drill rod 33 during the work cycle.

Each extension 14 supports each motorized rotating plate 26 with a horizontal axis of rotation “y” parallel to the axis “x”.

Telescopic shafts 27 are mounted on each rotating plate 26 and can be angularly reciprocated in accordance with the rotation of each rotating plate 26 to cover the entire area being drilled (FIG. 3).

Two shafts 27 support the introduction assembly 10 and are used to insert the reinforcing rod 39 into the holes prepared by the drilling assembly 30.

The introduction assembly 10 may optionally be arranged between a first position near the ground on one side of the perforator 20 and a second position near the ground on the other side.

The introduction assembly 10 comprises an associated mast or guide beam connected to the shaft 27 by segmented joints 29 which are inclined according to the operation of the actuator 35.

According to a feature of the invention, the mast 28 is in a folded state and can be arranged in a confined space between the two columns 17 in the folded state, ie in the least extended state.

More precisely, the masts 28 are four segments connected together by hinge joints in the order of first 28a, second 28b, third 28c and fourth 28d from the front end to the rear end. Is made of.

The segments 28a-28d can be selectively folded on the other side by operating the lower actuating device 47 and the two side actuating devices front 48 and the rear 49.

The lower actuating device 47 has a shaft 47a pressed at the connection point of the two levers, a fixed lever 50 connected with the first segment 28a and a vibration lever 51 connected with the second segment 28b.

The front side actuator 48 in turn has a shaft 48a pressed at the connection point of the stationary lever 52 connected with the second segment 28b and a vibration lever 53 connected with the second segment 28c.

In a particular example, the rear side actuator 49 is adapted to engage the oscillating lever 55 engaged with the shaft 49a and the third segment 28c pressed at the connection point of the stationary lever 54 connected with the fourth segment 28d. Have

When the shafts 47a, 48a, 49a of the actuators 47, 48, 49 are in their extended positions, the masts 28 are in working arrangement and the associated segments 28a-28d arranged vertically at their maximum extension. (FIGS. 1 and 5).

Conversely, when the shafts 47a, 48a, 49a are in their retracted positions, the mast 28 is in the folded position of the cloud and has segments 28a, 28b, 28d adjacent to the third segment 28c when extended to the maximum ( 2 and 8).

The mast is formed in the upper part with a toothed profile 37 (partially shown in the figure) made in the segment with the same extension as segments 28a-28d.

In the first embodiment, the toothed profile 37 consists of a rack. According to a variant, the toothed profile 37 consists of a chain.

The three trolleys, the first 44, the second 45 and the third 46, have a centering element 31 which can hold the reinforcing rod 39 in the shaft, and the reinforcing rod 39 to facilitate insertion into the hole. A hydraulic device mounted on the trolleys 44, 45, 46 and the mandrel 32, which can be rotated, respectively, is supported and can be slid along the toothed profile 37 connected to the assembly 38. .

The movement of the trolleys 45, 46 is then transmitted by the two speed reduction units mounted thereon. The first trolley 44 can be moved by a second trolley connected by a cable 56 that is tensioned and held constant by a tensioner mounted on the second trolley 45.

The first trolley 44 is in the position shown in FIG. 1 which is stationary even when the second trolley 45 is moved back by the stop element 57.

During the working cycle of the perforator 20, the introduction assembly 10 is arranged on one side of the perforator assembly 30 and ready to be on one side at the same time, and at the same time is completely independent and therefore operates together.

For operational requirements, when the introduction assembly 10 must move to the other side of the drilling assembly 30, the mast 28 has a folded arrangement vertically contained between the two columns 17 and under the drilling assembly 30. Will pass through.

More precisely, referring to Figures 5-8, the mast 28 folds quickly and completely automatically as follows:

First, in the extended arrangement of the mast 28 the mandrel 32 and the support and take-up assembly 38 disposed on the fourth segment 28d are removed by the associated trolleys 45 and 46 which are moved by the speed reduction unit. It proceeds to three segments 28c and also slightly advances to the centering element 31, which is prearranged above the third segment 28c.

In a preferred embodiment, the third trolley 46 is pulled by the second trolley 45 and the speed reduction unit is braking to achieve lower travel than the second trolley 45 when it is equal to about half.

Conversely, the first trolley 44 is pressed by the second trolley 45 when the second trolley 45 moves to the advanced position with the winding tension connecting the cable 56.

Accordingly, the front actuator 47 is operated to make the first segment 28a folded under the second segment 28b (FIG. 6).

The two side actuators 48 and 49 then operate simultaneously, with the fourth segment 28d and the second segment 28b with the first segment 28a in a position adjacent to the third segment 28c, respectively. (FIG. 7).

Thus, the mast 28 has a folded arrangement and can be rotated by a rotating plate 26 mounted such that the shaft 27 is brought to the opposite side of the perforation assembly 30 with an internal gap between the two columns 17. have; The mast 28 then returns to an extended arrangement that allows the introduction assembly 10 to start working again.

On the other hand, the drilling assembly 30 always operates continuously so that interruption of the working cycle of the drilling machine 20 affects the introduction assembly 10 for a short period of time.

It is apparent that modifications or additions may be made to the introduction assembly 10 as described so far. However, these are within the scope and scope of the present invention.

For example, the mast 28 can be folded in another way or made up of a larger or smaller number of segments.

Alternatively, instead of toothed profile 37, other types of guide means (for example cables) may be present in trolleys 44, 45, 46.

Although the foregoing refers to specific examples, there may be a significant number of the same type of introductory assembly for both reinforcing rods, which can be reliably achieved by those skilled in the art, both within the scope and scope of the present invention.

Claims (19)

In the introduction assembly for the reinforcing rod 39 of the perforator 20 having a perforation assembly 30 capable of making a plurality of holes therein into which the reinforcing rod 39 is inserted, The introduction assembly includes one or more beams or masts 28 for the reinforcing rods 39 and is typically disposed on one side of the perforation assembly 30 and the mast 28 has one or more operational arrangements and operations. Introductory assembly, characterized in that it can have an arrangement, can move from one side to the other side of the perforated assembly (30). 2. An introducer assembly according to claim 1, characterized in that the mast (28) is in its maximum extension in said working arrangement and in its folded state in said working arrangement. 3. The method according to claim 1 or 2, wherein the introduction assembly (30) is supported by one or more pairs of support column elements (17) and the mast teeth (28) between the pair of column elements (17) in the operation arrangement. Introductory body, characterized in that it can be included vertically in the space defined in. Introductory body according to any of the preceding claims, characterized in that the mast (28) is mounted on a pair of telescopic support shafts (27). 5. The shaft of claim 4, wherein the shaft 27 is disposed on the opposite side of the perforator 20 and covers the entire perforated area for selectively placing the introduction assembly 10 between two extreme positions near the ground. An introduction inductor, characterized in that it is connected with each rotating means (26) capable of angular reciprocating (b). An introduction according to any one of the preceding claims, characterized in that the mast (28) comprises a plurality of segments (28a, 28b, 28c, 28d) arranged adjacent to one another in the working arrangement and arranged vertically in the working arrangement. Invertebrates. 7. The method according to claim 2, wherein the segments 28a, 28b, 28c, 28d are contiguous with each other by the hinge element 36 and can be folded on top of the other by the actuators 47, 48, 49. Introduction inductor characterized by. 8. The actuator according to claim 7, characterized in that the actuators (47, 48, 49) are connected to the segments (28a, 28b, 28c, 28d) by levers (50, 51, 52, 53, 54, 55). Introductory conjugate. 9. The mast arrangement according to claim 7 or 8, wherein the mast 28 consists of four segments in the order of first (28a), second (28b), third (28c) and fourth (28d). And wherein the first segment is disposed below the second segment (28b) while the second segment (28b) and the fourth segment (28d) are arranged next to the third segment (28c). The mast (28) according to any one of the preceding claims, wherein a means for supporting and winding the hydraulic system of the perforator (20) or a rotating or centering means for the reinforcing rod (39) is mounted to the mast (28), Introductory body, characterized in that connected with the sliding profile (37) as the means (31, 32, 38) are moved. Injector according to claim 9 or 10, characterized in that the means (31, 32, 38) are arranged corresponding to the third segment (28c) in the working arrangement. 12. An introducer according to claim 10 or 11, characterized in that the sliding profile (37) is toothed. 13. An introduction inductor according to claim 12, characterized in that said sliding profile (37) consists of a rack. 13. An introducer according to claim 12, characterized in that said sliding profile (37) consists of a chain. 15. An introducer according to claim 10, characterized in that it consists of segments of length that engage the segments (28a, 28b, 28c, 28d) of the mast (28). Introductory body according to claim 10, characterized in that the means (31, 32, 38) are mounted on each movable trolley (44, 45, 46) coupled on the sliding profile (37). 17. An introducer body according to claim 16, characterized in that a speed reducing means is connected to said movable trolley (44, 45, 46) to carry out an operation. 18. An introduction inverted in accordance with claim 16 or 17 wherein at least one said movable trolley 44 is connected by a cable 56 to a second movable trolley 45 and is movable by a second movable trolley. sieve. Introductory body according to claim 16, characterized in that at least one said movable trolley (44) is able to cooperate with the stopping means (57) disposed on the mast (28).