Boring or penetrating the earth – With below-ground personal accommodation
Patent
1990-02-28
1991-01-22
Kisliuk, Bruce M.
Boring or penetrating the earth
With below-ground personal accommodation
175 98, 175 99, 175230, 405148, E21B 700, E21B 4100
Patent
active
049863746
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for driving an upwardly directed shaft in rock, and includes a platform that can be regulated in height.
An elevator is normally used in driving an upwardly directed shaft, e.g. a mine raise, and extra sections are added to this elevator so that its reach increases as the length of the raise increases. This kind of elevator has a work platform for carrying an operator and a drilling machine utilised for driving the raise. The vibrations from the drilling machine are transferred to the platform, and thus the operator is also subjected to them.
SUMMARY OF THE INVENTION
The object of the present invention is to provide an apparatus that does not have the mentioned disadvantage.
The invention accordingly provides a vibrationless working environment for the drilling machine operator.
BRIEF DISCRIPTION OF THE DRAWINGS
An embodiment of the invention will now be described with reference to the accompanying drawings, wherein:
FIG. 1 is a side view of the apparatus embodying principles of the present invention;
FIG. 2 is a view from above showing a portion of the drilling unit of the apparatus; and
FIG. 3 is a view from above showing the platform of the apparatus, the former carrying the operator's work station and being regulatable in height.
DETAILED DESCRIPTION
The apparatus includes a platform 1 that can be regulated in height, and which is pivotably connected at a pivot point 2 to an elevator means 3. The slope of the platform may be varied by means of a hydraulic cylinder 4, acting between the means 3 and platform 1.
The elevator means 3 is disposed such that it climbs up along a guide rail 5 anchored to the wall 7 of the shaft 6. The guide rail is extended with new sections as the shaft 6 continues to be driven, so that the reach of the elevator continues to increase in step with driving the shaft. The means 3 is provided with a plurality of toothed wheels or pinions driven by a hydraulic motor for enabling it to climb along the guide rail 5 in a manner known per se, the means 3 also being guided relative the guide rail, on which are arranged teeth for the pinions.
A hydraulic oil source 9, including an electric motor, pump and oil tank, is in communication with the elevator means 3. A personnel transport cage 10 is connected to the platform 1 and elevator means 3, and it is intended to accommodate operators in connection with elevator movements. A ladder 11 is arranged between the hydraulic oil source 9 and the cage 10. The points where the source 9, cage 10 and ladder 11 join on to their surroundings are articulated such as to enable adjusting the slope of the platform 1 in relation to the elevator means 3.
According to the invention, the platform carries a drilling unit 20 with legs that are telescopable, this function being provided with the aid of such as a hydraulically operated telescoping means. At their free ends the legs 21 have tips 22 intended for engagement against the shaft wall 7. The legs depart from a central portion 23 of the drilling unit 20. The central portion 23 carries a toothed swivelling ring 24, which is driven for rotation by a hydraulic motor via a pinion 25. The ring 24 carries a base structure 26, which in turn carries the drilling machine 30 of the drilling unit 20. Via an arm 31 the drilling machine 30 is pivotably connected to the base structure 26. A hydraulic cylinder 33 acts between the base structure 26 and arm 31 for changing the position of the arm so that the drilling machine 30 can assume a desired position. The drilling machine position can also be adjusted by a hydraulic cylinder 34 and by rotating the swivelling ring 24. The drilling machine has a feeder bar 35 and a drill rod 36 for working the rock.
Two brackets 40, 41 depend from the central portion 23, and pass through respective holes 50 and 51 in the platform 1. Under the platform the brackets are connected to a transverse member 42, the function of which will be explained later in more detail.
The platform 1 carries aat its ce
REFERENCES:
patent: 3085794 (1963-04-01), Johansson et al.
patent: 3379264 (1968-04-01), Cox
patent: 3547211 (1970-12-01), Christensen
patent: 3675433 (1972-07-01), Silvestrov et al.
patent: 4646853 (1987-03-01), Sugden et al.
Derwent's abstract No. E8380B/22, SU 615 216, Jun. 1978.
Andersson Lars-Erik
Niemi Ingemar
Gruvprodukter I Gallivare AB
Kisliuk Bruce M.
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