JPH02190594A - Rock drilling hose and cable reel structure - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention includes a frame of a rock drilling rig and at least two reels mounted thereon in rotation with respect to each other, one reel for each hose and/or cable. A rock drilling rig hose and cable reel structure is provided and further includes a rotation device for each reel for rotating said reel relative to a frame.

The operation of rock drilling equipment requires the supply of electrical energy via electric cables and the supply of rushing water or air through water or air hoses. Electrical cables are generally wound on separate cable reels that are attached to rock drilling equipment.

However, the water hose does not necessarily need to be provided with a reel, and the hose is manually or collectively provided at a predetermined position using a manual water hose reel. It is also possible to use a combination cable/hose reel with separate spaces for the cable and hose, which at the same time is mounted as a whole in a separate reel frame fixed to the carrying means of the device. Fixed. Furthermore, it is also known to use two separate reels that are rotatably mounted parallel to each other about a horizontal axis. In this case, both reels have separate frame structures attached to the support means of the rock drilling rig and therefore separate rotating machines.

A disadvantage of the prior art is that when the reel is provided only for electrical cables, the manipulation of the hose is heavy, difficult and time consuming, thus affecting the drilling timetable and wasting time. It is.

If two separate reels are used, then two separate frame structures are also required, which increases cost and complexity. Therefore, manual winding of the hose is difficult and time consuming. Furthermore, if only one reel is used, the frame structure of the rock drilling rig must be designed and modified for one reel, thereby making it possible to create identical Rock drilling equipment must be manufactured. For two separate reels, the frame structure takes up a lot of space, thereby increasing the overall size of the rock drilling rig and thus impairing its maneuverability within the tunnel.

A disadvantage of a single fixed reel for the two hoses is that the electricity and water supply means are usually located at different points within the tunnel. Cables and hoses are thereby uncoiled to the length required for long distances, while each extra length of cable or hose provides sufficient length of hose or cable for long distances as opposed to short distances. must be extended above the tunnel floor. If hoses and cables that extend over long distances are secured to their anchor points without being unwound, the hoses or cables needed for short distances will tangle on the reel and become entangled with the structure, resulting in It causes unnecessary work and problems as well as waste.

Canadian patent application CA 1,213,870 discloses a solution where the cable rotates about a vertical axis and is wrapped around a plate-like base arranged above the device. The disadvantage of this solution is that the space occupied by the structure above the device is not available for other purposes and the cables or hoses are susceptible to damage by falling dust, debris, stones, etc.

It is an object of the present invention to provide a structure for winding cables or hoses on reels in such a way that the above-mentioned problems are avoided and the hose and cable are wound independently of each other. Another object of the invention is to provide one or two within the same structure of the device.
Reel mounting provides a structure that allows for the mounting of two reels, with less damage to the hoses and/or cables, and which requires less space within the frame of the device. The above object, according to the present invention,
This is accomplished by mounting the reels in vertically coaxial relation to each other below the frame of the rock drilling rig so as to rotate the reels about a vertical axis.

The basic idea of the invention is that reels for cables and/or hoses can be rotated in a coaxial relationship about a vertical axis, yet can be operated independently of each other, such that each reel is rotated by a separate rotary motor independent of each other. As such, it is to be mounted further down on the hood of the rock drilling rig. An advantage of this solution according to the invention is that the reel is arranged below the rock drilling device and is therefore protected from dust and falling stones. Another advantage of the present invention is that less space is required for the reel on the outside of the rock drilling rig, which reduces the overall dimensions of the rig and allows the rig to be adjusted properly towards the rear. The tapered shape allows for easier movement of the device within the tunnel. A further advantage of the invention is that the reels are constructed in such a way that one or two reels can be mounted below the carrier structure according to the requirements of each particular case, without the need for modification of the frame structure. That's true. Furthermore, the solution according to the invention is cheaper to produce than prior art structures, since only one frame structure can be used regardless of the number of reels. The invention further provides that both hoses or cables can be uncoiled and wrapped independently;
The cable and hose tension can be maintained at a desired constant value regardless of the position of the hose or cable fixing point within the tunnel. Other machinery and equipment required for the rock drilling rig can be arranged on the frame of the rock drilling rig above the reel in order to make proper use of the space available for the rock drilling rig.

The present invention will be described in detail below with reference to the accompanying drawings.

[Explanation of Examples]

In FIG. 1, a rock drilling rig 1 comprises one or more rock drilling arms 2, which are known per se. A cable reel 3 and a hose reel 4 are mounted on the underside of the rock drilling device 1 at its rear end.

FIG. 2 is a detailed view of the mounting structure of the cable reel 3 and hose reel 4 rotatable about the vertical axis 5 of the frame 6 of the rock drilling rig.

The term "vertical" as used in the application specification and claims of the present invention refers to the vertical direction or a direction slightly deviated from the vertical direction. A slip ring housing 7 is disposed above the frame 6 and the cable reel 3
The slip ring housing 7 is installed coaxially with the slip ring housing 7. The slip ring is carried by a cable 8, and the current from the cable 8 is supplied to the rock drilling rig 1 via this slip ring. Since this structure and its operation are well known per se, a further detailed explanation thereof will not be given.

A cable reel 3 arranged on the underside of the frame 6 is connected to the frame by a bearing 9.

The bearing 9, which is a circumferential bearing, includes an inner bearing ring 1o and an outer bearing ring 11, and the bearing 1 is inserted between these bearing rings.
2 is placed. Both bearing rings 10 and 11 have flanges, which are arranged on either side with respect to the plane formed by bearing 12. The flange of the inner bearing ring 10 is fixed to the frame 1, while the flange of the outer bearing ring 11 is fixed to the cable reel 3 in a known manner by bolts or similar means (not shown). A gear 13 is arranged surrounding the bearing 9. The gear 13 is also preferably connected to the cable reel 3 by the same bolt as the outer ring 11 of the bearing 9.
Fixed. Furthermore, a rotary motor 14 with a sprocket wheel 15 attached thereto is mounted on the frame 6 for use with the cable reel 13. The sprocket wheel 15 extends below the frame 6 so as to be located at the same level as the gear 13, and a chain 16 is disposed so as to span both the sprocket wheel 15 and the gear 13.
The cable reel 13 is rotated during the rotation of the cable reel 13.

The hose reel 4 is also attached to the cable reel 3 in a similar manner, and a bearing 17 is arranged between these two reels. The inner ring 18 of the bearing 17 is fixed to the cable reel 3 and the outer ring 19 is correspondingly fixed to the hose reel 4 by bolts or the like (not shown).

A gear connected to a hose reel 4 such that the gear 21 is approximately at the same level as the bearing 20, and a motor 22 including a sprocket ring 23 and a chain 24 stretched between the sprocket ring 23 and the gear 21 is mounted in a frame. 2
Rotate 1. When either motor 14 or 21 is rotated, it rotates either chain 16 or 24 and thereby rotates cable reel 3 or hose reel 4. If only the cable 8 is unwound, the hose reel 4 will not rotate because the hydraulic motor 22 will prevent the hose reel 4 from rotating. Therefore, after the cable 8 and hose 25 are unwound, one of them can be unwound without constricting the other.

FIG. 3 schematically illustrates the connection of a hydraulic system, in which it provides an equal rotational movement for both reels 3 and 4, regardless of the number of cable turns or hose turns on the cable reel 3 or the hose reel 4. It is configured as follows. In this connection system, motors 14 and 22 are shown hydraulically connected in parallel to each other. Pump 26 supplies pressurized fluid to both motors 14 and 22 simultaneously. A pressure regulating valve 27 is disposed in the pressure fluid conduit in order to maintain the pressure of the pump 26 at a desired level and, accordingly, the rotational moment of the motor at a desired value. Since the motors 14 and 22 are arranged parallel to each other, the same rotational moment acts on them, leading to the same force acting on both the hose and the cable, whichever provides the lower resistance. The hose or cable is more easily coiled.

As a solution to the problem of the invention, these reels can be installed in a small space in a rock drilling rig using a simple construction method, while at the same time protecting the reels against damage.

With this construction, the rock drilling device can be equipped with one or more reels without changing the frame structure itself. Moreover, the bearings for the reels are similar, so that it can be determined in each particular case whether one or two reels are required, and one reel can be easily increased or decreased by loosening a few bolts. Furthermore, if the cable reel is placed above the hose reel, possible damage to the water hose will not damage the electrical cables and related equipment.

The above description and drawings relate to one preferred embodiment of the structure according to the invention, but the invention is not limited thereto. This bearing structure need not be recognized in the manner described above. Instead of supporting the reels by bearing rings, each reel can be individually attached by known structures. The lower reel need not be fixed above, but instead can be connected directly to the above-mentioned shaft in the same way as the upper reel. The number of reels can be two or more and they can be mounted in the same way,
The reels are thereby mounted on individual axes, or the uppermost reel is attached to the frame, while each of the lower reels
One can be mounted to be attached to the reel above it.

Even if only one cable or hose is attached to each reel in the solutions described above, it is equally possible to form hose bundles or cable bundles or combinations of hoses and control cables etc. in one piece and place them on the reel. Therefore, hoses and cables can always be used in combination. If electrical cables are used, the necessary hose reels can be fitted as well.

[Brief explanation of the drawing]

1 is a schematic representation of the structure of the invention applied to a rock-drilling device; FIG. 2 is a partially detailed sectional view of the device according to the invention; FIG. 3 is a generally equal tightening force on both the cable and the hose. This is a schematic diagram of the hydraulic coupling means for driving the motor of the structure of the present invention so that the structure of the present invention operates. Cable reel 4... Hose reel, 5... Vertical axis, 6... Frame, 7... Slip ring housing 8... Cable, 9... Bearing, 10
...Bearing inner ring, 11...Bearing outer ring 1
2...bearing, 13...gear, 14...
... Rotating motor, 15... Sprocket 16
...Chain, 17...Bearing, 18...
・Bearing inner ring, 19...Bearing outer ring 20・
...Bearing, 21...Gear, 22...
Motor, 23... Sprocket 24...
・Chain, 25...Hose winding, 26
... Pump, 27 ... Pressure regulating valve. Representative Patent Attorney (8107) Kiyoshi Sasaki (and 3 others)
given name)

Claims (1)

Claims: 1) A hose and cable reel structure for a rock drilling device (1), comprising at least two hoses and cables attached to the device in rotation with respect to a frame (6) of the device and each other. Includes reels (3, 4), one reel for each hose (25
) and/or cables (8), and furthermore, the reels (3, 4) are provided for the frame (6).
) for rotating each reel (3, 4); The frame (6) of the rock drilling rig (1) in the direction
) A hose and cable reel structure for a rock drilling device, characterized in that the hose and cable reel structure are attached to each other in a coaxial relationship below the rock drilling equipment. 2) The uppermost reel (3) is the frame (6) of the device (1)
2. Structure according to claim 1, characterized in that each lower reel (4) is rotationally attached to its upper reel (3). 3) Structure according to claim 1 or 2, characterized in that each cable reel (3) is mounted above a hose reel (4). 4) Each reel (3, 4) is attached to the frame (6) of the device (1).
) or to the reel (3) above it, respectively, by means of bearing rings (11, 17) arranged above it, the bearing rings (11, 17) being attached to the reel (3).
, 4), and the frame (6) or upper reel (3)
4. A structure according to any one of claims 1 to 3, characterized in that the structure is attached to both. 5) Rotating device (13-16; 2 for each reel (3, 4)
1 to 14) include gears (13, 21) mounted above the reels (3, 4), and a motor (14, 22) is mounted within the frame (6) of the device (1) for each reel (3, 4). 4), and the sprocket wheels (15, 23) are arranged for the gears (13, 4) of the reels (3, 4).
, 21), and a chain (16, 24) is attached to each sprocket to rotate the reel (3, 4). Rings (15, 23) and gears (
The structure according to any one of claims 1 to 4, wherein the structure is arranged to span over the structures (13, 21).