CN220133924U - Sleeve assembly for disassembling drill rod and drill rod disassembling device - Google Patents

Abstract

The utility model discloses a sleeve assembly for disassembling a drill rod and a drill rod disassembling device, wherein the sleeve assembly comprises a sleeve, a first limiting buckle and a second limiting buckle, and the first limiting buckle and the second limiting buckle can be accommodated in an inner space of the sleeve and can not rotate relative to the sleeve due to circumferential limiting of the sleeve; the drill rod dismounting device comprises an adapter and a sleeve assembly, one end of the adapter is connected with a power head of the drilling machine, the other end of the adapter is connected with the drill rod, the sleeve is sleeved on the adapter and can slide along the axial direction of the adapter, the first limiting buckle is clamped in a limiting clamping groove of the adapter and is accommodated in the sleeve, and rotation does not occur between the circumferential limiting sleeve and the adapter; the second limiting buckle is clamped in the drill rod limiting clamping groove when the sleeve moves upwards and is contained in the sleeve after sliding downwards, and relative rotation does not occur between the circumferential limiting sleeve and the drill rod. The device has improved the degree of automation that the drilling rod was dismantled, has reduced the time of manual work tearing open the pole, has reduced the cost of labor.

Description

Sleeve assembly for disassembling drill rod and drill rod disassembling device

Technical Field

The utility model relates to the technical field of drill rod disassembly and assembly, in particular to a sleeve assembly for drill rod disassembly and a drill rod disassembly device.

Background

The drill pipe generally includes upper and lower joints and pipe sections integrally formed or welded together for connection to the surface equipment of the drilling rig and to the drilling and grinding equipment or bottom hole assembly located at the bottom end of the well. The drill rod of the drilling machine is formed by combining multiple sections, and the drill rod is required to be frequently disassembled and assembled during drilling and coring operations of the geological drilling machine. After the drilling is completed, the drill rods are required to be pulled out from the drilling hole one by one and detached, however, threads are arranged at the two ends of one drill rod, one end of the drill rod can only be detached by reversing a power head and limiting a spanner, and the other end of the drill rod can only be detached manually.

Disclosure of Invention

The utility model aims to solve the technical problems that: in the prior art, aiming at the disassembly of threads at two ends of a drill rod, the threads at one end of the drill rod can only be disassembled by reversing a power head and limiting a spanner, and the threads at the other end of the drill rod can only be manually disassembled, however, the drill rod has large volume and weight, high tightness of threaded connection, difficult manual disassembly work, high labor intensity and high time cost.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows:

in a first aspect, the utility model provides a sleeve assembly for disassembling a drill rod, which comprises a sleeve, a first limiting buckle and a second limiting buckle, wherein the first limiting buckle and the second limiting buckle can be accommodated in an inner space of the sleeve in a matched manner; the first limiting buckle and the second limiting buckle can axially move in the inner space of the sleeve, and the circumferential limiting buckle can not rotate relative to the sleeve.

Further, the first limiting buckle and the second limiting buckle are U-shaped, and the inner contour of the sleeve is matched with the outer contour of the buckle.

Further, an adjusting hole is further formed in the side face of the sleeve.

Further, the device also comprises an annular limiting plate which can be assembled at the upper end of the sleeve.

In a second aspect, the utility model also provides a drill rod dismounting device, which comprises an adapter and the sleeve assembly, wherein one end of the adapter is used for connecting a power head on a drilling machine, the other end of the adapter is used for connecting a drill rod, the adapter is provided with an adapter limiting clamping groove, and two ends of the drill rod, which are close to a threaded connection position, are provided with drill rod limiting clamping grooves;

the sleeve is sleeved on the adapter through a limiting plate and can slide along the axial direction of the adapter, the first limiting buckle is clamped in the limiting clamping groove of the adapter and is contained in the inner space of the sleeve, and the second limiting buckle is clamped in the limiting clamping groove of the drill rod when the sleeve moves upwards and is contained in the sleeve after sliding downwards;

the drill rod clamping assembly is used for circumferentially limiting the drill rod.

Compared with the prior art, the sleeve assembly for disassembling the drill rod and the drill rod disassembling device have the following beneficial effects:

this drilling rod dismounting device is through setting up sleeve subassembly, adapter and drilling rod clamping assembly, can effectively improve the work efficiency that the drilling rod was dismantled. The sleeve assembly comprises a sleeve, a first limiting buckle and a second limiting buckle, wherein the first limiting buckle and the second limiting buckle can be accommodated in the inner space of the sleeve in a matched mode, and the disassembly work of threads at two ends of a drill rod is easy to achieve. In particular to a special-shaped ceramic tile,

step 1: the first limiting buckle in the sleeve is clamped in the limiting clamping groove of the adapter, the circumferential limiting sleeve and the adapter do not rotate, torque of the power head is transmitted to the adapter, and the loosening work of threads between the adapter and the drill rod can be realized through the circumferential limiting drill rod of the drill rod clamping assembly;

step 2: the sleeve is moved upwards, the second limiting buckle is inserted into a drill rod limiting clamping groove at the upper end of the drill rod, the angle is adjusted to enable the sleeve to slide downwards, the second limiting buckle is completely sleeved after the sleeve slides downwards, torque of the power head is transmitted to the drill rod directly connected with the adapter, the next drill rod connected with the drill rod is limited in the circumferential direction through the drill rod clamping assembly, and therefore connecting threads between the drill rod and the next drill rod are detached.

Step 3: and (3) moving the sleeve upwards, taking out the second limiting buckle, and manually removing the drill rod connected with the power head, thereby completing the disassembly of the threaded connection of the two ends of one drill rod.

And if the next drill rod is dismounted, the power head descends, the power head forward threads are connected with the next drill rod, the threaded connection at the moment is not required to be screwed, and the threaded connection corresponds to the connection threads between the unscrewed drill rod and the adapter in the step 1. The subsequent operations are identical and the above operations are repeated until all the drill rods are removed. The device has improved the degree of automation of drilling rod dismantlement work, has reduced the time of manual work dismantlement pole, has improved work efficiency, and the device simple structure, convenient operation.

Drawings

FIG. 1 is a schematic view of a sleeve assembly for drill pipe removal according to an embodiment of the present utility model;

fig. 2 is a schematic view of the overall structure of the drill rod dismounting device according to the embodiment of the utility model when mounted;

FIG. 3 is a schematic view of the structure of the adapter and sleeve assembly according to the present embodiment;

fig. 4 is a schematic structural view of the drill rod dismounting device according to the embodiment when the second limit buckle is to be mounted;

FIG. 5 is a schematic view of a second limiting buckle installed in the drill rod removing device according to the embodiment;

FIG. 6 is a schematic view of an embodiment of the threaded connection between a first drill pipe and a second drill pipe removed;

FIG. 7 is an enlarged schematic view of the structure corresponding to the location of the area A in FIG. 6;

the main reference numerals illustrate:

1-a drilling machine; 11-a cross beam; 12-a power head; 13-a drill rod; 131-a first drill rod; 132-a second drill rod; 14-a drill rod limiting clamping groove; 15-a support; a 2-adapter; 21-an adapter limiting clamping groove; a 3-sleeve assembly; 31-sleeve; 311-adjusting holes; 32-a first limit buckle; 33-a second limit buckle; 34-limiting plates; 4-wrench.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, integrally connected, or detachably connected; may be a communication between the interiors of two elements; may be directly or indirectly through an intermediate medium, and the specific meaning of the terms in the present utility model will be understood by those skilled in the art in specific cases.

Referring to fig. 1, the present embodiment provides a sleeve assembly 3 for disassembling a drill rod, which includes a sleeve 31, a first limiting buckle 32 and a second limiting buckle 33, wherein the first limiting buckle 32 and the second limiting buckle 33 can be accommodated in an inner space of the sleeve 31 in a matching manner, and the first limiting buckle 32 and the second limiting buckle 33 can move axially in the inner space of the sleeve 31 and can not rotate relative to the sleeve 31 due to circumferential limitation. Further, the first limiting buckle 32 and the second limiting buckle 33 are U-shaped, and the inner contour of the sleeve 31 is matched with the outer contour of the buckle 3, and the first limiting buckle 32 and the second limiting buckle 33 are completely matched with each other. The sleeve assembly 3 further includes an annular limiting plate 34 which can be fitted over the upper end of the sleeve.

Further, an adjusting hole 311 is further provided on the side surface of the sleeve 31, and an adjusting rod can be disposed in the adjusting hole 311, so as to facilitate the rotation of the angle of the sleeve 31.

Referring to fig. 2-3, the present embodiment further provides a drill rod dismounting device for dismounting a drill rod 13 with drill rod limiting clamping grooves 14 at both ends.

The drilling machine 1 comprises a cross beam 11 and a power head 12 which is movably arranged on the cross beam 11 and provides rotary torque, the power head 12 can drive a drill rod 13 to move up and down or rotate, and a support piece 15 for the drill rod 13 to pass through is further arranged at the lower end of the cross beam 11.

The drill rod removing apparatus includes an adapter 2, the sleeve assembly 3 described above, and a drill rod clamping assembly, wherein:

one end of the adapter 2 is connected with the power head 12, the other end of the adapter is connected with the drill rod 13 in a threaded manner, and an adapter limiting clamping groove 21 is formed in the adapter 2;

when the sleeve assembly 3 is assembled, the sleeve 31 is sleeved on the adapter 2 and is fixedly provided with the limiting plate 34 through a screw, and the first limiting buckle 32 is positioned in the sleeve 31 and is clamped in the adapter limiting clamping groove 21 for circumferentially limiting the sleeve 31 and the adapter 2. The sleeve 31 and the limiting plate 34 can slide along the axial direction of the adapter 2, when the limiting plate 34 slides to a position close to the first limiting buckle 32, a cross overlapping part exists between the limiting plate 34 and the first limiting buckle 32, so that the first limiting buckle 32 limits the sliding of the sleeve 31, and the sleeve 31 is prevented from falling off from the adapter 2.

The second limiting buckle 33 may be clamped in the drill rod limiting slot 14 of the drill rod 13 near one end of the adapter 2 when the sleeve 31 slides up, and is accommodated in the sleeve 31 after sliding down, for limiting the sleeve 31 and the drill rod 13 circumferentially. The length of the sleeve 31 is greater than the distance between the drill rod limiting clamping groove 21 at the upper end of the drill rod and the highest point of the adapter limiting clamping groove 21, and the first limiting clamping buckle 32 and the second limiting clamping buckle 33 can be covered at the same time.

In this embodiment, the rod clamping assembly is a wrench 4, and a handle of the wrench 4 is clamped on the support 15 of the drilling machine 1, and is used for circumferentially limiting the drill rod 13, so that the drill rod 13 does not rotate.

The specific process for disassembling the drill rod is as follows: (for ease of description, the drill pipe connected to the power head 12 is referred to as a first drill pipe 131, and the next drill pipe connected to the first drill pipe 131 is referred to as a second drill pipe 132)

S1: the pre-installation drill rod dismounting device specifically comprises the following components: the adapter 2 is installed on the power head 12, the first limiting buckle 32 is assembled in the adapter limiting clamping groove 21, the sleeve 31 is sleeved on the adapter 2, and the limiting plate 34 is fixed at the upper end of the sleeve 31 through a screw.

S2: when the drilling operation is finished and the rod withdrawing and disassembling operation is ready, the power head 12 of the drilling machine 1 lifts to a proper position with the drill rod, the wrench 4 is inserted into the drill rod limiting clamping groove 14 below the first drill rod 131, and referring to fig. 7, the handle of the wrench 4 abuts against the support 15 of the drilling machine 1 without rotating the first drill rod 131 in the circumferential direction, and the connecting threads between the first drill rod 131 and the adapter 2 are loosened by controlling the reverse rotation of the motor of the power head 12.

S3: referring to fig. 4 to 6, after the threads between the first drill rod 131 and the adapter 2 are loosened, the sleeve 31 is moved upward, and the second limit buckle 33 is inserted into the drill rod limit clamping groove 14 at the upper end of the first drill rod 131.

If deviation exists between the orientations of the sleeve 31 and the second limit buckle 33, the sleeve 31 is slid down to completely cover the second limit buckle 33 by manually rotating the sleeve 31 through inserting an adjusting rod into an adjusting hole 311 on the side surface of the sleeve 31, so that the orientations of the second limit buckle 33 and the sleeve 31 are consistent, and the connection between the sleeve 31 and the first drill rod 131 is completed; at this time, the adapter 2, the sleeve 31 and the first drill rod 131 are integrated, and torque of the power head 12 is transmitted to the first drill rod 131.

S4: the power head 12 is lifted up to the position where the wrench 4 is clamped in the drill rod limiting clamping groove 14 of the second drill rod 132, the second drill rod 132 is limited in the circumferential direction and does not rotate, and at the moment, the power head 12 is controlled to lift up and detach the connecting threads between the first drill rod 131 and the second drill rod 132 while reversing.

S5: after the connecting threads between the first drill rod 131 and the second drill rod 132 are removed, the sleeve 31 is manually moved up, the second limit buckle 33 is taken out of the drill rod limit clamping groove 14, and the first drill rod 131 is manually removed. The threaded connection between the first drill rod 131 and the adapter 2 is loosened before, and the manual disassembly is convenient, so that the whole disassembly work of threads at the two ends of the first drill rod 131 is completed.

When the next drill rod is to be removed, the power head 12 is lowered, the power head 12 is screwed forward to connect the next drill rod, and the screwing at this time is not required to be screwed down, which corresponds to unscrewing the connecting screw between the first drill rod 131 and the adapter 2 in the step S2. I.e. the subsequent operations are exactly the same as S3-S5 described above, which is repeated until all drill rods are removed.

The sleeve assembly is simple in structure and convenient to assemble, can connect two drill rods so that the two drill rods do not rotate relatively, and enables the sleeve 31 to be movably sleeved on the adapter 2 through the limiting between the limiting plate 34 and the first limiting buckle 32 without separating from the adapter 2, the sleeve 31 can slide up and down on the adapter 2 under the conditions of self gravity and manual external force application, and then the second limiting buckle 33 is put in and removed.

When the second limiting buckle 33 is not placed in the sleeve 31, the torque of the power head 12 is transmitted to the adapter 2, so that the screwing or unscrewing of the threads between the adapter 2 and the first drill rod 131 can be realized; when the second limiting buckle 33 is placed in the sleeve 31, the first limiting buckle 32 and the second limiting buckle 33 do not rotate relative to each other through the sleeve 31 between the adapter 2 and the first drill rod 131, namely torque of the power head 12 is transmitted to the first drill rod 131, the second drill rod 132 does not rotate circumferentially through the wrench 4, and further screwing or unscrewing between the first drill rod 131 and the second drill rod 132 is achieved, so that connecting threads at two ends of the first drill rod 131 are detached.

In this embodiment, the operation of the drilling machine in the vertical direction is taken as an example, and the range of the specific application scenario of the sleeve 31 can be expanded to the drilling machine operated at other angles, but the movement of the sleeve 31 needs to be driven by external power at this time, and cannot be realized any more by utilizing the self gravity.

In summary, the foregoing description is only of the preferred embodiments of the utility model, and is not intended to limit the utility model to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims (5)

1. A sleeve assembly (3) for drill rod disassembly, characterized by comprising a sleeve (31), a first limit catch (32) and a second limit catch (33), which are fittingly received in an inner space of the sleeve; the first limiting buckle and the second limiting buckle can axially move in the inner space of the sleeve, and the circumferential limiting buckle can not rotate relative to the sleeve.

2. The sleeve assembly for drill rod removal of claim 1, wherein the first and second limit catches are U-shaped, and an inner profile of the sleeve is adapted to an outer profile of the catches.

3. Sleeve assembly for drill rod removal according to claim 2, characterized in that the sleeve is further provided with an adjustment hole (311) on the side.

4. The sleeve assembly for drill rod removal of claim 2, further comprising an annular stop plate (34) mountable to an upper end of the sleeve.

5. The drill rod dismounting device is characterized by comprising an adapter (2) and the sleeve assembly according to any one of claims 1-4, wherein one end of the adapter is used for being connected with a power head (12) on a drilling machine, the other end of the adapter is used for being connected with a drill rod (13), an adapter limiting clamping groove (21) is formed in the adapter, and drill rod limiting clamping grooves (14) are formed in two ends of the drill rod, close to threaded connection positions;

the sleeve is sleeved on the adapter through a limiting plate and can slide along the axial direction of the adapter, the first limiting buckle is clamped in the limiting clamping groove of the adapter and is contained in the inner space of the sleeve, and the second limiting buckle is clamped in the limiting clamping groove of the drill rod when the sleeve moves upwards and is contained in the sleeve after sliding downwards;

the drill rod clamping assembly is used for circumferentially limiting the drill rod.