CN218265824U - Sleeve butt-joint platform - Google Patents

Abstract

The utility model discloses a sleeve pipe butt joint platform, including lift rack and brace table, the brace table level sets up to rotate through rotating and install the lift end of lift rack, the upper end middle part of brace table still is equipped with the sleeve pipe holder, the sleeve pipe holder is used for pressing from both sides the sleeve pipe lower extreme tightly, the lift rack is used for adjusting the height of brace table, so can with the vertical setting of sleeve pipe with the brace table upper end to press from both sides tightly by the sleeve pipe holder, then adjust the level of key through the lift rack, drive the sleeve pipe through rotating the brace table and rotate.

Description

Sleeve butt-joint platform

Technical Field

The utility model belongs to heavy-calibre drilling low tube operation field especially relates to a sleeve pipe butt joint platform.

Background

The gas outburst is one of the most serious safety problems in the coal mining process, as the deep mining part of a mine is gradually deepened, more and more mines and coal beds are outburst, and meanwhile, the complex geological environment and mining conditions of the coal mine are also important factors causing multiple gas accidents. Therefore, in order to ensure the safe production of mines and reduce the occurrence of gas accidents, gas must be prevented and controlled, and at present, a large-caliber gas direct-discharge hole technology is adopted for preventing and controlling gas in some mines. Some mines have built chambers into which debris, such as rock debris, mud, etc., are dropped to avoid the gas vent construction process. Therefore, the drilling needs to be constructed in two sections, in the first step, a conventional drilling process is used for construction to a certain position away from a chamber roof (the reserved section can bear upper pressure), then a casing (an upper casing 3 b) is put in for cementing, then a raise-over-the-hole technology is used for constructing the reserved hole section to a designed aperture, the reserved section casing (a lower casing 3 a) is installed to a preset position by adopting a lifting-up method, and the casing connection in the reserved section is particularly difficult due to lower space limitation, screw thread deformation and the like.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide a simple structure, and the sleeve pipe butt joint platform of realization sleeve pipe butt joint that can be convenient.

In order to realize the purpose, the technical scheme of the utility model is as follows: the utility model provides a sleeve pipe butt joint platform, includes lift rack and brace table, the brace table level sets up to rotate through rotating and install the lift end of lift rack, the upper end middle part of brace table still is equipped with the sleeve pipe holder, the sleeve pipe holder is used for pressing from both sides the sleeve pipe lower extreme tightly, the lift rack is used for adjusting the height of brace table.

The beneficial effects of the above technical scheme are that: so can with the vertical setting of sleeve pipe with the brace table upper end to it is tight to be pressed from both sides by the sleeve pipe holder, then adjusts the level of pipe fitting through the lift rack, drives the sleeve pipe through rotating the brace table and rotates.

In the technical scheme, the lifting rack comprises a base, a platform board and a plurality of extensible members, wherein the base is horizontally arranged and is multiple in that the extensible members are installed at the upper end of the base, the platform board is horizontally arranged above the base and is multiple in that the extensible members extend and retract synchronously to drive the horizontal height of the platform board, and the platform board is formed by the lifting end of the lifting rack.

The beneficial effects of the above technical scheme are that: the lifting device is simple in structure and good in stability during lifting.

In the technical scheme, the telescopic piece is a jack, and the upper end of the base is annularly distributed.

The beneficial effects of the above technical scheme are that: the adjusting is convenient, and the bearing capacity is large.

In the technical scheme, the sleeve clamping piece comprises a plurality of clamping teeth, and the clamping teeth are distributed in the middle of the upper end of the supporting table in a circular ring shape and are used for clamping the sleeve on the supporting table.

The beneficial effects of the above technical scheme are that: therefore, the sleeve is clamped by the plurality of clamping teeth, and the clamping effect is good.

In the technical scheme, the clamping teeth are slidably mounted on the supporting table, each clamping tooth is further provided with a locking piece, the locking pieces are used for fixing the clamping teeth at any position of the sliding track of the clamping teeth, and the clamping teeth are arranged on the supporting table in a sliding mode to be far away from or close to each other so as to clamp sleeves with different pipe diameters.

The beneficial effects of the above technical scheme are that: therefore, the clamping teeth can slide on the supporting table and can be fixed at any position of a sliding track of the supporting table through the locking piece, and the sleeve clamping piece can clamp sleeves with different pipe diameters.

In the technical scheme, the clamping teeth are L-shaped, the lower ends of the clamping teeth are far away from each other, the locking piece is arranged on the clamped horizontal part, and the vertical parts of the clamping teeth are used for clamping the sleeve together.

The beneficial effects of the above technical scheme are that: the structure is simple, at the moment, the vertical parts of the clamping teeth can extend into the sleeve to be in contact with the inner wall of the sleeve so as to clamp the sleeve, and the sleeve can be clamped outside the sleeve.

Among the above-mentioned technical scheme the retaining member is locking bolt, it is equipped with the vertical screw that runs through to press from both sides the tooth horizontal part, just the retaining member with screw threaded connection screws up the retaining member to its screw thread end tip with it offsets in order to incite somebody to action press from both sides the tooth locking, or unscrew the retaining member is in order to incite somebody to action it relieves locking to press from both sides the tooth.

The beneficial effects of the above technical scheme are that: the locking device is simple in structure and good in locking effect.

Among the above-mentioned technical scheme the rotation piece is the bearing, the upper end of landing slab be equipped with rotate the arch that the inner ring is connected, the protruding lower extreme of brace table be equipped with rotate the bulge loop that the outer loop is connected.

The beneficial effects of the above technical scheme are that: the rotation connection part can flexibly rotate.

In the technical scheme, the lower end of the base is also provided with a plurality of universal wheels.

The beneficial effects of the above technical scheme are that: therefore, the position of the sleeve butt-joint platform can be conveniently moved, and meanwhile, the position of the sleeve butt-joint platform can be flexibly and finely adjusted.

In the technical scheme, the universal wheel is a braking universal wheel.

The beneficial effects of the above technical scheme are that: therefore, the sleeve butting platform can be braked at a construction position, and construction accuracy caused by slippage of the sleeve butting platform is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a casing docking platform according to embodiment 1 of the present invention;

fig. 2 is one of the schematic views of the sleeve clamped on the support table in embodiment 1 of the present invention;

fig. 3 is a second schematic view of the sleeve clamped on the support table in embodiment 1 of the present invention;

fig. 4 is a third schematic view illustrating clamping of the sleeve on the support table according to embodiment 1 of the present invention;

fig. 5 is a schematic view of the sliding connection between the gripping teeth and the supporting platform according to embodiment 1 of the present invention;

fig. 6 is a construction schematic diagram of a pipe laying construction method in a large-caliber drilling well according to the embodiment 2 of the present invention;

fig. 7 is a construction state diagram of a lower pipe construction method in a large-caliber drilling well according to the embodiment 2 of the present invention. In the figure: the drilling tool comprises a casing butt joint platform 1, a lifting rack 11, a base 111, a platform plate 112, a 1121 bulge, a 113 telescopic part, a support platform 12, a convex ring 121, a rotating part 13, a casing clamping part 14, a clamping tooth 141, a strip-shaped hole 1411, a locking part 142, a universal wheel 15, a lifting device 2, a lower casing 3a, an upper casing 3b, a first tapered screw thread 31, a second tapered screw thread 32, a connecting female part 4, a chamber 5, a drilling well 6 and a drilling rod 7.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

Example 1

As shown in fig. 1, the embodiment provides a casing butt-joint platform, which includes a lifting rack 11 and a supporting table 12, the supporting table 12 is horizontally arranged and is rotatably installed at a lifting end of the lifting rack 11 through a rotating member 13, a casing clamping member 14 is further arranged in the middle of the upper end of the supporting table 12, the casing clamping member 14 is used for clamping the lower end of a casing, the lifting rack 11 is used for adjusting the height of the supporting table 12, so that the casing can be vertically arranged at the upper end of the supporting table and is clamped by the casing clamping member, then the horizontal height of the pipe fitting is adjusted through the lifting rack, and the casing is driven to rotate through rotating the supporting table.

Among the above-mentioned technical scheme lift rack 11 includes base 111, landing slab 112 and a plurality of extensible member 113, base 111 level sets up, and is a plurality of extensible member 113 is installed base 111 upper end, landing slab 112 level sets up the top of base 111, and is a plurality of extensible member 113's flexible end with landing slab 112's lower extreme is connected, and is a plurality of extensible member 113 is synchronous flexible in order to drive landing slab 112's level, just landing slab 112 constitutes lift end of lift rack 11, its simple structure, and stability is good when just going up and down.

In the above technical scheme, the telescopic member 113 is a jack, and the telescopic members 113 are annularly distributed at the upper end of the base 111, so that the adjustment is convenient, and the pressure bearing capacity is high.

In the above technical solution, the sleeve clamping member 14 includes a plurality of clamping teeth 141, and the plurality of clamping teeth 141 are distributed in a circular ring shape in the middle of the upper end of the supporting base 12, and are used for clamping the sleeve on the supporting base 12, so that the plurality of clamping teeth clamp the sleeve, and the clamping effect is good.

In the above technical solution, the clip teeth 141 are slidably mounted on the supporting platform 12 (each of the sliding tracks of the clip teeth is a radial sliding of a circular ring formed by enclosing along a plurality of clip teeth), each of the clip teeth 141 is further provided with a locking member 142, the locking member 142 is used to fix the clip teeth 141 at any position of the sliding tracks thereof, and the clip teeth 141 are in the supporting platform 12 and can slide to be away from or close to each other to clamp sleeves of different pipe diameters, so that the clip teeth can slide on the supporting platform and can be fixed at any position of the sliding tracks thereof through the locking member, and the sleeve clamping members can clamp sleeves of different pipe diameters.

In order to ensure that the sleeve clamped by the support platform keeps coaxially rotating when the support platform rotates, the axis of a circular ring formed by enclosing of the plurality of clamping teeth is coincided with the axis of the rotating part.

As shown in fig. 2 and 3, in the above technical solution, the clip teeth 141 are L-shaped, the lower ends of the clip teeth 141 are far away from each other, the locking member 142 is disposed at the horizontal portion of the clip, and the vertical portions of the clip teeth 141 are used to clamp the casing together.

Or the horizontal part of the clamp tooth is provided with a strip-shaped hole which penetrates through from top to bottom along the direction of the sliding track of the clamp tooth, the support table is provided with each screw hole which penetrates through from top to bottom at the sliding track of the clamp tooth, the locking piece penetrates through the strip-shaped hole and is in threaded connection with the corresponding screw hole, the locking piece is unscrewed at the moment, the position of the clamp tooth can be adjusted, and the locking piece is screwed down, so that the clamp tooth can be fixed on the support table (as shown in fig. 4 and 5).

Among the above-mentioned technical scheme retaining member 142 is the locking bolt, it is equipped with the vertical screw that runs through to press from both sides tooth 141 horizontal part, just retaining member 142 with screw threaded connection screws up retaining member 142 to its threaded end tip with supporting bench 12 offsets in order to incite somebody to action it locks to press from both sides tooth 141, or unscrews retaining member 142 is in order to incite somebody to action it relieves locking to press from both sides tooth 141, its simple structure, and locks effectually.

In the above technical solution, the rotating member 13 is a bearing, the upper end of the platform plate 112 is provided with a protrusion 1121 connected to an inner ring of the rotating member 13, the lower end of the supporting table 12 is convexly provided with a convex ring 121 connected to an outer ring of the rotating member 13, and the rotating connection can flexibly rotate.

In the above technical scheme the lower extreme of base 111 still is equipped with a plurality of universal wheels 15, and the position of removal sleeve pipe butt joint platform that so can be convenient can carry out nimble fine setting to sleeve pipe butt joint platform's position simultaneously.

In the technical scheme, the universal wheel 15 is a braking type universal wheel, so that the sleeve butt joint platform can be braked at a construction position, and construction accuracy caused by slippage of the sleeve butt joint platform is avoided.

Example 2

As shown in fig. 6 and 7, this embodiment provides a method for constructing a lower pipe in a large-caliber drilling well, which includes an upper lifter 2, a plurality of lower casings 3a, and the casing docking platform 1 according to embodiment 1, wherein one of the lower casings 3a is an upper lifter, a female connection component 4 matching with the upper lifter 2 is coaxially installed inside the upper lifter, a first tapered thread 31 is coaxially installed at a lower end of the lower casing 3a, and a second tapered thread 32 matching with the first tapered thread 31 is coaxially installed at an upper end of the lower casing 3a, wherein the method for constructing the drilling inner casing 3a includes:

step 1: arranging a hard base plate or directly pouring concrete and leveling to form a concrete pouring layer under the well 6 in the chamber 5, and arranging the sleeve butting platform 1 on the hard base plate or the cured concrete pouring layer;

step 2: installing an uplift 2 at the lower end of a drill pipe 7 and bringing the uplift 2 by the drill pipe 7 to be lowered into the chamber 5 through the drilling, vertically installing the uplift casing on a support table 12 of the casing docking platform 1 and clamping the uplift casing by the casing clamps 14, horizontally adjusting the horizontal position of the casing docking platform 1 to align the uplift 2 with a connection female 4 in the uplift casing, continuing to lower the drill pipe 7 or adjusting the casing docking platform 1 to connect the uplift 2 with the connection female 4, releasing the uplift casing by the casing clamps 14, and lifting the uplift casing 7 upwards to release the position of the lower casing 3a on the support table 12;

and step 3: taking any remaining lower casing 3a, vertically placing the remaining lower casing on the supporting table 12, clamping the remaining lower casing by the casing clamping device 14, driving the upper casing to move downwards by the drill pipe 7 until the first tapered thread 31 at the lower end of the upper casing is aligned with and contacts the second tapered thread 32 at the upper end of the lower casing 3a of the supporting table 12, rotating the supporting table 12 and synchronously adjusting the ascending of the casing butting platform 1 to realize the threaded connection between the second tapered thread 32 at the upper end of the lower casing 3a on the supporting table 12 and the first tapered thread 31 at the lower end of the upper casing, loosening the corresponding lower casing 3a by the casing clamping device 14, and lifting the upper casing 7 and the lower casing 3a at the lower end thereof together to lift the upper casing 3a on the supporting table 12 to vacate the position of the lower casing 3a on the supporting table 12;

and 4, step 4: repeating the step 3 to sequentially butt joint the lower sleeves 3a until the upper end of the upper lifting sleeve abuts against the upper sleeve 3b at the lowest end, and rotating the upper lifter to drive the upper end of the upper lifting sleeve to butt joint with the lower end of the upper sleeve 3b at the lowest end;

and 5: and (3) removing the connecting female element 4 from the lifting casing, and driving the lifting device 2 and the connecting female element 4 to move upwards out of the well by the drill stem 7. And the drill rod and the lifter are matched to gradually lift the butted lower casing pipe up through the drilling well until the upper end of the lifted casing pipe in the drilling well is butted with the lower end of the upper casing pipe at the lowest end, and the construction is completed by dismounting the connecting mother part.

The structures of the connecting female part, the casing (wherein the casing is divided into an upper casing and a lower casing, but the lower end of the upper casing at the lowest end is also provided with a first tapered screw thread), the first tapered screw thread, the second tapered screw thread and the lifter can refer to the structure disclosed in the patent No. CN113445937A, a butt joint construction method of large-caliber drilling inner casings.

The effect of the upward lifting device in this embodiment is mainly to lift the upward lifting sleeve and the lower sleeve connected to the lower end of the upward lifting sleeve and pull the upward lifting sleeve into the well from bottom to top, when two adjacent lower sleeves are butted, the lower sleeve on the supporting table is jacked up from the sleeve butting platform to the first conical screw thread at the upper end of the lower sleeve and the lower end of the second conical screw thread of the lower sleeve above the lower sleeve are matched, and then the threaded connection of the first conical screw thread and the second conical screw thread can be realized by manually rotating the supporting table (the lifting rack needs to be lifted up slowly when the supporting table is rotated).

In the technical scheme, an internal thread is arranged in the lifting sleeve, an external thread matched with the internal thread on the lifting sleeve is arranged on the outer wall of the connecting female part 4, and the connecting female part 4 is installed in the lifting sleeve in a threaded manner. The connection female part and the lifting casing are detachably and threadedly connected, so that the threaded connection between the connection female part and the lifting casing can be released and the lifting device can be taken out from the lifting casing in the later period (the connection manner of the connection female part and the lifting casing can also refer to the content recorded in the paragraph 0039 of the specification No. CN113445937A, butt joint construction method of large-diameter drilling inner casing).

The casing butt joint platform and the construction method for the inner pipe of the large-caliber drilling well have the advantages that:

(1) In the process of large-aperture sectional pipe laying, the pipe laying operation space is limited because the pipe laying is usually carried out in an underground chamber after a roadway is communicated in the later stage, and the problem of inconvenient construction due to narrow space can be solved by the sleeve butt joint platform;

(2) When the casing pipes are butted, the upper drill rod can swing along the inclination of the drill hole in a drilling well, so that two casing pipes to be butted are difficult to concentrically butt, and the casing pipe butting platform can conveniently and concentrically align the two casing pipes to be butted;

(3) Because the universal wheels are arranged below the sleeve butting platform, the position of the sleeve butting platform can be conveniently and finely adjusted, so that a lower sleeve positioned below can be conveniently and concentrically aligned with a washing sleeve positioned above;

(4) Because the lower casing is heavy, when the two lower casings are in butt joint, the casing butt joint platform keeps slowly ascending when the supporting platform rotates, and the dead weight of the lower casing positioned below can be overcome, so that the butt joint difficulty (large resistance) caused by the dead weight of the lower casing when the two lower casings are in butt joint can be avoided.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; all the persons skilled in the art can smoothly implement the present invention as shown in the attached drawings and described above; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.

Claims (10)

1. The utility model provides a sleeve pipe butt joint platform, its characterized in that, includes lift rack (11) and brace table (12), brace table (12) level sets up to rotate through rotating piece (13) and install the lift end of lift rack (11), the upper end middle part of brace table (12) still is equipped with sleeve pipe holder (14), sleeve pipe holder (14) are used for pressing from both sides the sleeve pipe lower extreme tightly, lift rack (11) are used for adjusting the height of brace table (12).

2. The pipe docking platform according to claim 1, wherein the lifting platform (11) comprises a base (111), a platform plate (112) and a plurality of expansion members (113), the base (111) is horizontally disposed, the plurality of expansion members (113) are installed on the upper end of the base (111), the platform plate (112) is horizontally disposed above the base (111), the expansion ends of the plurality of expansion members (113) are connected with the lower end of the platform plate (112), the plurality of expansion members (113) synchronously expand and contract to drive the horizontal height of the platform plate (112), and the platform plate (112) constitutes the lifting end of the lifting platform (11).

3. A pipe docking platform according to claim 2, wherein the telescopic member (113) is a jack, and a plurality of telescopic members (113) are annularly arranged on the upper end of the base (111).

4. The casing docking platform according to claim 1, wherein the casing clamping member (14) comprises a plurality of clamping teeth (141), the plurality of clamping teeth (141) being distributed in a circular ring shape in the middle of the upper end of the support base (12) for clamping the casing on the support base (12).

5. The casing docking platform according to claim 4, characterized in that the clamping teeth (141) are slidably mounted on the support platform (12), each clamping tooth (141) is further provided with a locking member (142), the locking member (142) is used for fixing the clamping teeth (141) at any position of the sliding track, and a plurality of clamping teeth (141) can slide to be far away from or close to each other on the support platform (12) to clamp casings with different pipe diameters.

6. The casing docking platform according to claim 5, wherein the clamping teeth (141) are L-shaped, lower ends of a plurality of the clamping teeth (141) are far away from each other, the locking member (142) is provided at the horizontal part of the clamping, and vertical parts of a plurality of the clamping teeth (141) are used for clamping the casing together.

7. The casing docking platform according to claim 6, wherein the locking member (142) is a locking bolt, the horizontal portion of the clamping tooth (141) is provided with a screw hole vertically penetrating through, and the locking member (142) is in threaded connection with the screw hole, and the locking member (142) is tightened until the end of the threaded end of the locking member abuts against the support table (12) to lock the clamping tooth (141), or the locking member (142) is loosened to unlock the clamping tooth (141).

8. The casing butt joint platform according to claim 2, wherein the rotating member (13) is a bearing, the upper end of the platform plate (112) is provided with a protrusion (1121) connected with the inner ring of the rotating member (13), and the lower end of the support platform (12) is provided with a protruding ring (121) connected with the outer ring of the rotating member (13) in a protruding manner.

9. A casing docking platform according to claim 2, 3 or 8, wherein the lower end of the base (111) is further provided with a plurality of universal wheels (15).

10. Cannula docking platform according to claim 9, characterized in that the universal wheels (15) are brakable universal wheels.

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