Skid yoke |
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IPC classes for russian patent Skid yoke (RU 2521113):
Skid yoke / 2521099
Skid yoke comprises body with handle and mouth for drill string. It differs from known designs in that said body has intersecting vertical and horizontal channels, the latter being stepped. Note here that yoke has a fork-shape retainer with teeth arranged in the body vertical channels, at outer surface with circular groove. Note also that spring-loaded retainers are arranged in retainer tooth circular grooves at working position. Retainers are composed by balls.
 Dual string spider / 2517107
Spider having a body with two vertical through tapered openings consists of two halves pivoting in the horizontal plane and dissymmetric in regard to the joint line and fixed rigidly in a closed position at the front by a stopper made as a rod. It also contains two gripping mechanisms that include four-part slips installed so that they can be moved in the through tapered openings and lever mechanisms interacting pivotally with the slips. The spider is equipped with a mechanism for each gripping mechanism interacting with the lever mechanism. Under the body there is a basis in the form of a plate with the central opening, at the front side up to the central opening there is a through groove in the plate. Over the body there is a cover in the form of a plate with the central opening that consists of two pivoting halves fixed rigidly to the racks of the lower half of the body. The device is equipped with a vertical axis fixed rigidly at the upper plane of the basis at the rear side and connected pivotally to the rear side of the body half, the cover half. At that the spider is fixed by "Open" or "Closed" position regulators for the body half and an open position regulator for the slips. The centres of tapered openings are placed in the joint line of the body by which the tapered openings are divided into semi-openings. Drives of the gripping mechanisms are united with the lever mechanisms and contains coaxial external and internal shafts with fixed rigidly manual handles, levers and consoles with rocker arms mounted opposite to each other at the lateral sides of the body halves, they are mounted so that they can rotate in brackets connected to the lateral sides of the body halves. The drives of the gripping mechanisms also contain detachable rods connected pivotally to the rocker arms; the rods consist of two links connected by the interacting gear racks at each link. Fixation of the links in the connected position is made by a lock in the form of a spring-actuated bushing. At that the rod of the first gripping mechanism is connected to the rocker arms of the external shafts while the rod of the rear gripping mechanism is connected to the rocker arms of the internal shafts. Parts of each slip are dissymmetric in regard to the joint line of the body; they interact in pairs with one of semi-openings in the through tapered openings of the body. At that both parts of pairs of the front slip are connected in pairs with the rocker arms of the internal shafts and both pairs of the rear slip are connected in pairs with the rocker arms of the external shafts.
 Drilling rod fixing device / 2452846
Drilling rod fixing device includes drive cylinder, stock of drive cylinder and rod fixing device. Drilling rod fixing device also includes swivel fork connecting the rod fixing device to drive cylinder stock through support fixed on working member of drilling machine so that when stock of drive cylinder is being extended, fixing device of rod moves by means of swivel fork along drilling rod, and hexagonal hole approaches flattened surfaces of drilling rod, thus fixing it against turning.
 Device for pipe holding in well / 2387796
Device for pipe holding in a well comprises a flanged body with an internal narrowed up conical guide, lids spring-assisted upwards and mounted in the conical guide to perform radial and synchronous axial motion. The conical guide represents inserts with internal conical surfaces equispaced within the internal cylindrical surface of the body to be fixed and pulled out. Each lid is inserted into the coupled insert to perform longitudinal motion in relation to its internal conical surface. The lids are spring-assisted upwards in relation to each insert. The lid is inserted into the coupled insert by a T-joint or dovetail, while the inserts and the body are interconnected by the T-joint or dovetail. Along their external surface, the inserts are provided with cross-section samples, and the body on its internal surface has tangential holes matched with said samples wherein a pin interacting with the insert samples is mounted.
Device for pipe holding in well / 2387796
Device for pipe holding in a well comprises a flanged body with an internal narrowed up conical guide, lids spring-assisted upwards and mounted in the conical guide to perform radial and synchronous axial motion. The conical guide represents inserts with internal conical surfaces equispaced within the internal cylindrical surface of the body to be fixed and pulled out. Each lid is inserted into the coupled insert to perform longitudinal motion in relation to its internal conical surface. The lids are spring-assisted upwards in relation to each insert. The lid is inserted into the coupled insert by a T-joint or dovetail, while the inserts and the body are interconnected by the T-joint or dovetail. Along their external surface, the inserts are provided with cross-section samples, and the body on its internal surface has tangential holes matched with said samples wherein a pin interacting with the insert samples is mounted.
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FIELD: mining. SUBSTANCE: skid yoke comprises body with handle and mouth for drill string. It differs from known designs in that said body has channels made on both sides of the mouth, parallel with its sidewalls and arc-like slot at its top end connected with one channel of the body. Note here that said yoke incorporates L-like rod retainer to close the retainer case mouth. Retainer crosswise part is secured at one of body channels to turn thereabout. Opposite end of said retainer is furnished with stop arranged in working position at another channel of said body. Note here that retainer stop is composed by rod with head, detachable disc and spring arranged between disc opposite faces and lengthwise rod. Retainer crosswise part is furnished with detachable threaded nut while stepped channel in the body will receive the retainer crosswise part. Note also that compression spring is fitted in the cavity formed by walls of stepped channel and threaded nut. EFFECT: higher safety at round-trip jobs. 3 cl, 3 dwg
The invention relates to a tool used in drilling exploration wells, namely when conducting tripping, mainly with drill pipes. Known washer, plug, comprising a housing with a handle and pharynx to install the drill string at the wellhead when conducting tripping (see Reference drilling exploration wells, St. Petersburg, 2000, S. 215, is To). Closer to the proposed to the technical essence and the achieved result is the washer, plug, comprising a body with a handle and pharynx under the drill string (see avts of the USSR №787317, CL EV 19/10, 1980). The main disadvantage of both analogue and prototype should include the likelihood of injury drilling personnel runaway swivel wrench when it is used for screwing and unscrewing of the drill string mechanical spreads, for example, RT-1200. Primarily this is due to the wear of the working elements of the drill locks and joints and also the back of the fork during tripping. In connection with the stated technical result of the invention is to increase safety when conducting tripping drill pipe. This technical result is achieved by the fact that in podkla the Noah fork includes case with handle and pharynx under the drill string, according to the invention the casing is made with channels located on either side of the throat parallel to its side walls, and an arcuate groove on its upper end connected to one of the channels of the body, when this plug is provided with overlapping Zev housing retainer in the form of the l-shaped rod, the transverse portion of which is secured in one of the channels of the body can be rotated and the other end of the latch is equipped with a stopper placed in the working position in the other channel of the housing. The achievement of the technical result is also that: the stopper retainer is made in the form of a rod with a head, a removable disk, and a spring placed between facing each other faces of the disk and the longitudinal rod; the transverse part of the fixing device is equipped with a removable threaded nut, and a channel in the housing under the lateral part of the retainer is made of stepped form, while in the cavity formed by the walls of the speed channel and a threaded nut, a compression spring. The invention is illustrated by drawings, where figure 1 shows a General view of the back of the fork in the plan, and figure 2 - cross section A-a in figure 1; figure 3 - cross section B-B in figure 1. Washer, plug includes a housing 1 with a handle 5 and pharynx 3 with the guide planes 2 for drill string is 4. The housing 1 is made with channels 6 and 7 located on both sides of the throat 3 parallel to its lateral walls 8, and a curved groove 9 on its upper end connected to the channel 7 of the housing 1. The groove 9 is made with a radius equal to the distance between the channels 5 and 7. When this plug is provided with a lock 10 in the form of the l-shaped rod, the transverse portion 11 which is fixed in the channel 6 of the housing 1 can be rotated, and a longitudinal portion 12 of the retainer 10, overlying the orifice 3 of the housing 1, is equipped with a stopper placed in the working position in a different channel 7 of the housing 1. The stopper retainer 10 is made in the form of a rod 16 with a head 13, on the lower end of which is mounted a removable disk 15 and the spring 14. The spring 14 is placed between facing each other faces of the disk 15 and the longitudinal rod 12 of the retainer 10. For adjusting the position of the stopper can be used for more disk 17 mounted between the head 13 of the rod 16 and the outer face of the longitudinal portion 12 of the retainer 10. A possible embodiment of the transverse portion 11 of the stopper with a removable threaded nut 18. When the channel 6 in the housing 1 under the nut 18 is made of stepped form, and in the cavity formed by the stepped walls of the channel 6 and the threaded nut 18, a compression spring 19. The principle of operation of the washer, plug consists in the following. When conducting tripping Conn is dnow plug installed in the slots of the lock or coupling of the drill string 4. After that Zev 3 of the housing 1 are closed by the latch 10 by placing the stopper in the axial channel 7 of the housing 1. In this advance by rotation of the discs 15 and 17 regulate the stroke of the spring 14 for free overlap of the latch 10 of the throat 3 of the housing 1 and release the stopper. In this position, the swivel fork will be kept on the drill string latch 10, and therefore cannot slip with the drill string and injure drilling personnel. It also promotes and equipment fork compression spring 17, which constantly presses the longitudinal rod 12 of the retainer 10 to the upper end of the body 1, preventing the stopper from axial movement, and the plug from the stall. Preferably the latch 10 to be positioned in the immediate vicinity of the drill string 4. This embodiment of the swivel plug allows you to virtually eliminate the injuries while conducting tripping with the drillstring. 1. Washer, plug, comprising a body with a handle and pharynx under a drill string, wherein the body is made with channels located on either side of the throat parallel to its side walls, and an arcuate groove on its upper end connected to one of the channels of the body, when this plug is provided with overlapping Zev housing retainer in the form of the l-shaped rod, arachna part of which is secured in one of the channels of the body can be rotated, and the other end of the latch is equipped with a stopper placed in the working position in the other channel of the housing. 2. Washer, plug according to claim 1, characterized in that the stopper retainer is made in the form of a rod with a head, a removable disk, and a spring placed between facing each other faces of the disk and the longitudinal rod. 3. Washer, plug according to claim 1, characterized in that the transverse part of the fixing device is equipped with a removable threaded nut, and a channel in the housing under the lateral part of the retainer is made of stepped form, while in the cavity formed by the walls of the speed channel and a threaded nut, a compression spring.
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