Boring or penetrating the earth – With magazine for successively moving unconnected – oriented...
Reexamination Certificate
1999-09-21
2001-11-06
Schoeppel, Roger (Department: 3672)
Boring or penetrating the earth
With magazine for successively moving unconnected, oriented...
C175S085000, C166S077510, C414S022530, C414S022620
Reexamination Certificate
active
06311788
ABSTRACT:
RELATED APPLICATIONS
This application claims priority to German Patent Application Number 19843167.8 filed Sep. 21, 1998 which is incorporated herein by reference.
FIELD OF THE INVENTION
The invention relates to a magazine and manipulation apparatus for drilling rod parts for a drill, having a rod magazine in which the drilling rod parts are received in a multi-layered arrangement in a store, and having a removal device for transferring the individual drilling rod parts from the rod magazine into a charging device which transports the drilling rod part to the drill and for returning the drilling rod parts from the charging device to the rod magazine.
Such magazine and manipulating apparatuses are used, for example, to remove the individual drilling rod parts from an appropriately sized rod magazine and feed them to a drill of a well-drilling system for deep drilling to the depth of, for example, several hundred meters.
BACKGROUND OF THE INVENTION
DE-OS 27 21 342 has disclosed a magazine and manipulation device for drilling rod parts which possesses a manipulator designed as a rod trolley by means of which the tubular drilling rod parts or rod sections are removed from a separate rod magazine, which is set up adjacent to the rod trolley and in which they are received in the plurality of layers, and can be returned thereto. The manipulator contains a removal device which possesses two extensible arms arranged parallel to each other and at a distance apart and capable of pivoting about a longitudinal axis of the rod trolley, and transfer members rotatably mounted on the arms. In order to remove a rod section, the entire rod magazine is lifted until the currently uppermost layer of the rod sections is arranged slightly above the arms, which are then moved out in a position inclined upward from their pivot axis below the uppermost layer of the rod magazine. After the lowering of the lateral limiting posts of the rod magazine, the latter is positioned obliquely so that the rod sections roll out from the rod magazine and over the inclined arms as far as the transfer member. The transfer member is designed as a disk having a recess for a rod section. The transfer member, which is driven in rotation, can, in the course of each rotation, receive a rod section in the arm and bring it via a semicircular path into the center of the manipulator and into a position of readiness for further manipulation. Since, however, the recess in the transfer member leaves a large amount of play for the rod section in the circumferential direction, the latter, when turned over, falls without retention or guidance into the position of readiness on the manipulator. When rod sections are bent in operation, this may result in their falling to the ground instead of into the position of readiness and thus constituting an accident risk for the operating personnel. In addition, the basic structure of the rod magazine has to be of very strong design, since it has to be moved via correspondingly long hydraulic cylinders as far as the removal point of the rod sections in the topmost position. Other devices are known from DE 3108053 C2 and DE-C 2129701.
SUMMARY OF THE INVENTION
The object of the invention is to provide an apparatus of the type indicated initially in which the drilling rod parts or rod sections are securely guided when turned over and the rod magazine is of simple construction and retains its stability even during the turning-over of the drilling rod parts. This object is achieved, according to the invention, in that, in the apparatus referred to initially, the removal device is movably guided vertically and relative to the rod magazine on a guide and possesses a pivot mechanism having at least one gripping unit for the pick-up of a drilling rod part and by pivoting of the pivot mechanism, the drilling rod part retained in the gripping unit is moved between the position of transfer in the rod magazine and the charging device, and in which, by a vertical displacement of the removal device, the pivot mechanism with the gripping unit is adapted to the current, position-dependent position of transfer in the rod magazine and to the charging device.
This design of the apparatus according to the invention guarantees that a given drilling rod part is transferred securely from the store into the charging device, and also in the opposite direction, since it is continuously retained until it arrives at its respective target position, as a result of which any risk of accident caused by a drilling rod part falling to the ground is excluded. Moreover, the stability of the entire apparatus is improved, since in order to remove a drilling rod part it is not necessary to lift the whole rod magazine for vertical adjustment but merely to move this one drilling rod part with the removal apparatus upward. The rod magazine is therefore of simple construction and can thus be integrated into a drill trolley.
Advantageous embodiments of the invention are indicated in the subclaims.
Expediently, the rod magazine possesses a frame with vertical posts defining the store and one of the posts contains the vertical guide for the removal device. The number of frames, set at a distance apart in the longitudinal direction, and hence the number of posts is derived from the length of the drilling rod parts and the support thus required. One of these posts, especially one of the posts arranged centrally on the side wall of the rod magazine, may thus possess the vertical guide for the removal device. However, the guide may also be attached to another component in the region of the rod magazine, and it may also diverge from the vertical alignment provided that it ensures the necessary vertical adjustability and vertical adaptation of the removal device, retaining its correct positioning in the positions of transfer. The removal device may possess a drive motor or other drive assigned directly to it, which may also be responsible for the actuation of the pivot mechanism.
For the operation of the apparatus according to the invention, it is particularly advantageous if by means of a movement device a drilling rod part mounted in the store can be brought into its position of transfer and out of that position of transfer into a release position in the store. This ensures that the drilling rod part is moved and positioned correctly for its destination and that the position of transfer for the filling of the store is cleared after each introduction of a drilling rod part and free for the next drilling rod part. Such a movement device may, for example, displace a drilling rod part accordingly by direct action of force by means of a movement arm or the like.
In another advantageous embodiment, the movement device possesses a pivotable support for a lower layer of the drilling rod parts which is arranged at the bottom of the frame and mounted to pivot about a longitudinal axis of the rod magazine. Thus, in a simple manner, the action of gravity on the drilling rod parts arranged on an obliquely positioned plane can be used for the desired movement of the drilling rod parts. An oblique position of the bottom layer is transferred to the layers above it without the whole rod magazine being tilted thereby about a pivot axis. Stability is thus still preserved even when the store is full.
As a result of the fact that, in an expedient embodiment, each drilling rod part, in its position of transfer, rests on one of the posts adjacent to the removal device, a permanently defined position of transfer is achieved in the vicinity of the removal device, by means of which short transfer paths are achieved.
Expediently, the posts possess vertical grooves for guidance of spacer beams which are inserted between the layers of the drilling rod parts. This guidance or comparable guidance of the spacer beams permits the inclination of all the drilling rod parts in the store to be set in a simple manner.
Preferably, the pivotable support can be pivoted by a pivot device both in a horizontal orientation and in both pivoting directions, so that the necessary inclination s
Bauer Spezialtiefbau GmbH
Pepper Hamilton LLP
Schoeppel Roger
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