RU193125U1 - ELEVATOR TWO-STEP UNIVERSAL - Google Patents

Abstract

The utility model relates to the oil and gas industry and is intended for use in the process of arrangement and overhaul of wells. The universal double-elevator elevator contains a housing with locking fingers for the slings, a locking device and an automatic latch. The locking device is quick-detachable and consists of an insert body with a mounting pin against rotation, a bolt with a hole for attaching a handle that rotates freely around its axis, a locking screw restricting it from longitudinal movement, while the insert housing is installed in the housing, and the insert housing is installed the shutter, the mounting pin is inserted into the hole of the housing, and the counter hole in the insert housing is aligned with the end of the pin protruding from the opening of the housing, while the handle through the annular grooves in the core truncated elevator and the insertion body is inserted into the shutter opening and has on its outer diameter a circumferential groove, and the shutter is formed with a hole for the locking screw with the possibility of entering of the locking screw in the annular groove of the handle. Provides quick installation, dismantling of the valves for a specific outer diameter of the tubing during tripping, long trouble-free operation, simplicity and reliability of the structural elements when moving the handle to the "Open-Closed" position. 12 ill.

Description

The utility model relates to the oil and gas industry and is intended for use in the process of arrangement and overhaul of wells.

Known elevator case, including a housing, a sash connected to the housing, a bracket, a latch with a locking tooth and a spring support, the bracket is pivotally connected to the housing and is made in the form of a U-shaped strap with eyes and a protective frame welded to it, and a spring support, consisting of two springs (upper and lower), located on the axis of the bracket, where one of the ends of each spring abuts against the elevator housing, and the other end - into the latch lever [RU 2414581 C2 IPC E21B 19/06 (2006.01), publ. 2011]. The well-known elevator provides improved ergonomics, safety, reliability and increased service life.

The disadvantages of the known design of the elevator case can include the following:

Details such as a safety frame, a bracket, a latch, which are part of the shutter's locking mechanism in the “Closed” position, actually protrude more than half the elevator’s dimensions and have much smaller geometric dimensions than the shutter and the casing. This design of the flap fixation mechanism is subject to unauthorized impact and, as a result, deformation of the incoming parts and the subsequent possible spontaneous opening of the flap during tripping operations of the tubing string. The multi-lever system of the sash fixation mechanism is not protected from the ingress of dirt and sand and requires frequent flushing to maintain its operability, otherwise incoming parts will quickly become unusable, which again increases the risk of spontaneous opening of the sash. The elevator is designed for hoisting operations with only one standard size tubing.

The closest in technical essence and the achieved technical result is a universal elevator, consisting of a housing with couplers of slings, a locking device and a latch [RU 2507368 C2, IPC E21B 19/06 (2006.01), publ. 2011]. The latch consists of a housing, a stem, a sleeve, an adjusting sleeve, a spring, and a handle. The handle is welded to the lock body. The locking device is removable and consists of a glass with a groove, safety keys and a locking leaf. The locking leaf has two threaded holes for fixing the latch. EFFECT: increased reliability of the device, ease of operation.

The disadvantages of the known design of the universal elevator are a fairly large technological time for mounting and dismounting the elevator on the hook block slings, namely, the dismantling of six cotter pins from the castellated nuts, unscrewing the six bolted joints, dismantling the couplers. The process of replacing the cup and sash corresponding to a different diameter of the tubing string, which needs to be raised or lowered, is rather laborious and inconvenient. In order to remove the lock assembly, it is necessary to completely unscrew the long threaded screw passing through the entire sash; then unscrew the four bolts securing the glass from turning in the housing, and dismantle the two keys. When installing the retainer assembly already with a different size of the cup and sash, it is necessary to set the protrusion of the stem of the stem from the housing to get the threaded screw into the return hole, since the linear dimensions from the stop of the sleeve into the housing to it will be different than in the previously standing sash. This result can be achieved by removing the guide bolt from the groove of the rod by threading and unscrewing or twisting the rod through the thread in the adjustment sleeve and trying to match the corresponding holes in the elevator hanging on the slings, which is very problematic in the field and especially in winter. The latch assembly has a fairly large console protruding beyond the dimensions of the elevator casing and is not protected from unauthorized blows during tripping. This can lead to deformation and jamming of the sash opening-closing mechanism.

The design features of the proposed utility model allow to solve all the above technical problems, increase the reliability of the equipment, provide ease of operation and maintenance.

The specified technical result is achieved in that the elevator comprises a housing with easily removable locking fingers for slings, a locking device and a "latch" mechanism that reliably holds the shutter in the "Closed" position.

The versatility of a two-line elevator lies in the fact that it can be used when carrying out tripping operations of all running standard sizes of tubing string columns.

The design of the "Two-line universal elevator" is represented by the following illustrations:

FIG. 1 is a top view of a double-bar universal elevator, FIG. 2 is a side view.

FIG. 3 is a section A-A, revealing the design of the locking device.

FIG. 4 is a cross-section BB showing a latch structure.

FIG. 5 is a section B-B, revealing the design of the angular fixation of the insert body in the elevator housing.

FIG. 6 is a side view of the housing of the double-bar universal elevator, FIG. 7 is a top view.

FIG. 8 is a plan view of the insert body of the double-bar universal elevator elevator, FIG. 9 is a top view.

FIG. 10 is a section G-D, revealing the location of the counter hole under the pin and the annular shutter in the insert body and the annular shutter of the two-slope universal elevator.

FIG. 11 is a top view of the shutter of the double-bar universal elevator.

FIG. 12 is a section DD, revealing the design of the shutter for installing the handle and the locking screw of the two-line universal elevator.

The universal double-elevator elevator comprises a housing 1 (Fig. 1) with fixing fingers for the slings 4, an insert housing 2 and a locking device (Fig. 3, section AA), including a handle 6 that rotates freely around its axis, a locking screw 7, a shutter 3, the latch mechanism (Fig. 4 section BB), consisting of a latch 8, a housing 9, a handle 10, a spring 11.

The housing 9 of the latch mechanism is welded to the housing 1 of the elevator.

The technical solution of the proposed utility model is as follows. An insert 2 housing is installed in the housing 1 (Fig. 1), a shutter 3 is installed in the insert housing. The size of the insert 2 housing and the shutter 3 depends on the outer diameter of the tubing or drill pipe. In the housing 1, a hole is made in which the pin 12 is installed (Fig. 5 section BB). In the case of the insert 2, a counter-hole 16 is made (Fig. 10, section G-D), which, when installed in the elevator case 1, is combined with a protruding pin 12 (Fig. 5, section B-B), reliably fixes it from rotation and automatically sets it in desired angular position. Through the annular grooves 14 (Fig. 7) in the elevator housing 1, the annular grooves 15 (Fig. 8) in the insert body 2, a handle 6 is inserted into the hole 17 (Fig. 12, section DD) (Fig. 3, section A-A) to the stop and is fixed from longitudinal movement by the locking screw 7 (Fig. 3, section AA), for which an annular groove 13 is made on the outer diameter of the handle 6 (Fig. 3 section AA), which allows it to rotate freely around its axis. This design allows the handle 6 to translate the locking device into the appropriate position: "Open" or "Closed", and in the "Closed" position, the handle 6 is wound for the spring-loaded latch 8 (Fig. 4 section BB) and is locked securely. To translate the locking device into the "Open" position, the operator hand presses the handle 10 (Fig. 4 section B-B), the spring 11 is compressed, the latch 8 is buried and releases the handle 6 for longitudinal movement along the annular groove in the housing 1 and in the insert body 2 To fully open the shutter 3, the handle 6 must be rotated 180 ° clockwise around its axis so that its bent end does not abut the sling and reaches the thrust end of the annular groove 14 (Fig. 7) in the housing 1 and the annular groove 15 (Fig. 8) in the housing of the insert 2. When translating locking of the device into the “Closed” position, the handle 6 (Fig. 3 section AA) must be rotated 180 ° around its axis, but now in the opposite direction (counterclockwise) and put in the leftmost position, the spring latch 8 (Fig. .4 section B-B) will automatically trigger for locking. The design and geometric dimensions of the handle 6 (Fig. 1) and the latch mechanism 8 (Fig. 4 section B-B) maximally repeat the geometric shape of the housing 1 (Fig. 1) and provide minimal protrusion for the overall dimensions of the elevator. This repetition of the geometric shape and minimal protrusion is the protection of the opening mechanism - closing from mechanical damage during unauthorized shock during tripping operations in the well. The quick preparation of a two-line universal elevator in the field for tripping operations of a tubing of a different size is ensured by the fact that it comes with a set of spare parts (spare parts and tools), which includes insert 2 (Fig. 1), shutter 3 (Fig. . 1), the handle 6 (Fig. 1), marked with the corresponding standard size tubing with a locking screw 7 (Fig. 3 section AA), that is, the locking device assembly that does not require additional settings.

The quick installation of the locking device is determined by the overall design of the elevator and is as follows. In the housing 1 (Fig. 7) install the body of the insert 2 (Fig. 8), which is automatically set in the desired angular position and is fixed from turning by aligning the holes 16 in it (Fig. 10 cross-section G-D) with the installation pin 12 (Fig. 5 section B-B). In the housing of the insert 2 in the annular groove 18 (Fig. 10 cross-section G-D)) install the shutter 3 (Fig. 11). Through the longitudinal grooves 14 (FIG. 7) in the elevator housing 1 and the longitudinal grooves 15 (FIG. 8) in the insert housing 2, the handle 6 is inserted into the hole 17 (FIG. 12, section DD) of the shutter 3 and fixed with the locking screw 7 (FIG. .3 section AA) due to the annular groove 13 (Fig. 3 section AA). The equipment is ready to go. The dismantling of the locking device is carried out in reverse order.

The proposed design of a two-tailed universal elevator provides quick dismantling, installation of a locking device for a specific outer diameter of tubing during tripping operations, long trouble-free operation, simplicity and reliability of the structural elements when moving the handle to the "Open-Closed" position.

Claims (1)

A universal two-rod elevator, comprising a housing with locking fingers for the slings, a locking device and an automatic latch, characterized in that the locking device is quick-detachable and consists of an insert housing with an installation pin from rotation, a shutter with a hole for attaching a handle that rotates freely around its axis, a screw restricting it from longitudinal movement, while the insert housing is installed in the housing, and the shutter is installed in the insert housing, the installation pin is inserted into the hole e of the case, and the counter hole in the insert body is aligned with the end of the pin protruding from the hole of the case, the handle through the grooves in the elevator body and in the insert body is inserted into the shutter hole and has an annular groove on its outer diameter, and the shutter is made with a hole for locking screw with the possibility of the locking screw entering the annular groove of the handle.

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