CN109723395B - Drilling rod equipment about - Google Patents

Abstract

The invention provides equipment for loading and unloading a drill rod, relates to the technical field of geological drilling, and solves the technical problem of low accuracy of coaxial drill rods, power heads and wellheads. The device comprises a lifting mechanism, a swinging mechanism, a rotating mechanism and a clamping mechanism; the lifting mechanism is arranged on the drilling tower to incline along with the drilling tower at the same angle and can drive the drill rod to move along the axial direction of the drilling tower in a Z-axis manner; the swinging mechanism is connected with the lifting mechanism so as to enable the drill rod to rotate around the axial direction of the swinging mechanism; the rotating mechanism is connected with the swinging mechanism along the Y-axis in an adjustable position, and enables the drill rod to rotate around the axial direction of the rotating mechanism; the clamping mechanism is connected with the rotating mechanism along the X-axis in an adjustable position and clamps the drill rod; the X axis, the Y axis and the Z axis are perpendicular to each other.

Description

Drilling rod equipment about

Technical Field

The invention relates to the technical field of geological drilling, in particular to equipment for lifting and lowering a drill rod.

Background

The traditional operation of lifting and throwing down the drill rod by using the steel wire rope to drill the drill rod up and down has high risk, and the labor intensity of workers is high and the efficiency is low. For the operation of drilling rods on and off drill floors, oil drilling has a mature technology and a wide field, so that the drilling rods are dragged to the drill floors along gate slopes from catwalks by utilizing winches in oil drilling, and single rods are connected into stand roots in a small rat hole by means of cooperation of the winches and hydraulic tongs. However, geological drilling does not have a wide field and large transportation equipment, and no mature technology exists for the drill pipe up and down equipment, namely the drill pipe up and down drill floor system.

In geological drilling, electromechanical devices are mostly used as driving mechanisms of the up-down drill rod equipment. However, the adoption of electromechanical devices has the following drawbacks, on the one hand, of complex structure; electromechanical devices, on the other hand, are not suitable for field operations without industrial electricity.

In the prior art, when the drill rod is assembled and disassembled in an auxiliary manner, the coaxiality of the power head and the drill rod is required to be very high, so that the drill rod is assembled and disassembled in the power head, and the drill rod is driven to drill by the power provided by the power head. The up-down drill rod device can only be used for drilling vertical wells, even for inclined wells, but because the up-down drill rod device and the datum of the power head are independent of each other, the up-down drill rod device can hardly adjust the drill rod to meet the drilling angle precision requirement when the inclined wells are drilled.

In the prior art, errors exist in the self assembly, installation and manufacturing processes of the equipment for installing and removing the drill rod, so that the precision of aligning the drill rod with the wellhead cannot meet the high-precision requirement of coaxial alignment of the drill rod and the wellhead.

Disclosure of Invention

The invention aims to provide equipment for loading and unloading a drill rod, which solves the technical problem of low coaxial precision of the drill rod, a power head and a wellhead in the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the invention provides equipment for lifting and lowering a drill rod, which comprises a lifting mechanism, a swinging mechanism, a rotating mechanism and a clamping mechanism; the lifting mechanism is arranged on the drilling tower to incline along with the drilling tower at the same angle and can drive the drill rod to move along the axial direction of the drilling tower in a Z-axis manner; the swinging mechanism is connected with the lifting mechanism so as to enable the drill rod to rotate around the axial direction of the swinging mechanism; the rotating mechanism is connected with the swinging mechanism around the Y-axis in an adjustable position, and the drill rod is enabled to rotate along the axial direction of the rotating mechanism; the clamping mechanism is connected with the rotating mechanism along the X-axis in an adjustable position and clamps the drill rod; the X axis, the Y axis and the Z axis are perpendicular to each other.

On the basis of the technical scheme, the invention can be improved as follows.

Further, the lifting mechanism comprises a first frame body, a movable frame and a first driving piece, the movable frame movably clamps the first frame body, and the first driving piece is arranged on the movable frame and is in transmission connection with the first frame body so as to drive the movable frame to move along the first frame body; the first frame body is installed on the drilling tower.

Further, in the drill rod lifting device, two ends of the movable frame are correspondingly connected with a plurality of side surfaces at two ends of the first frame body in a rolling way through cam bearings; the first driving member adopts a low-speed hydraulic motor.

Further, in the drill rod lifting device, the output end of the first driving piece is connected with a rack in a meshed mode, and the rack is installed on the first frame body and located on the inner side of the movable frame.

Further, the swinging mechanism of the drill rod up-down equipment comprises a second frame body and a second driving piece, and the second driving piece is arranged on the second frame body; the second frame body is arranged on the lifting mechanism; the rotating mechanism comprises a third frame body and a third driving piece, and the third driving piece is arranged on the third frame body; the third frame body is connected with the second driving piece along the Y-axis in an adjustable position; the clamping mechanism is connected with the third driving piece along the X-axis in an adjustable position.

Further, in the drill rod lifting and descending device, the second driving piece and the third driving piece are low-speed hydraulic swing cylinders.

Further, the rotary mechanism is connected with the swinging mechanism along the Y-axis adjustable position through a first adjusting component, and the first adjusting component comprises a first arm, a cover plate, a second arm and a third arm; one side of the cover plate is connected with the second arm, and the other side of the cover plate is connected with the first arm in an adjustable gap manner, so that the first arm and the second arm are rotatably connected around the Y axis; the first arm is slidably embedded with the third arm along the Y axis; the third arm is connected with the swinging mechanism; the second arm is connected with the rotating mechanism.

Further, in the up-down drill rod device, the cover plate is provided with a boss for forming the gap, and the other side of the cover plate is connected with the first arm through a first correcting piece to adjust the size of the gap.

Further, the clamping mechanism comprises a clamping frame, a first clamping jaw, a second clamping jaw and a fourth driving piece; the first clamping jaw and the second clamping jaw are in meshed connection and are rotatably arranged on the clamping frame; the fourth driving piece is arranged on one side of the first claw and one side of the second claw so as to drive the first claw and the second claw to clamp the drill rod; the clamping frame is connected with the rotating mechanism through a rotating flange along the X-axis adjustable position.

Further, the rotary flange is provided with a first positioning piece, the rotary mechanism is provided with a second positioning piece at an adjustable position, and the first positioning piece and the second positioning piece can be abutted to mechanically position.

The beneficial effects of the invention are as follows: through elevating system, swing mechanism, rotary mechanism and fixture's setting, elevating system installs in the drilling tower to can make drilling rod and the same angle of drilling tower slope, so that elevating system is the Z axle adjustable angle in drilling rod place space promptly, thereby can be applicable to vertical well and inclined shaft drilling, improve the axiality of drilling rod and well head and unit head. The rotating mechanism can be adjusted in position along the Y axis relative to the swinging mechanism, and the clamping mechanism can be adjusted in position along the X axis relative to the rotating mechanism; in addition, the swinging mechanism can drive the drill rod to swing around the Z axis, and the rotating mechanism can drive the drill rod to rotate around the X axis, so that the drill rod can move along the Z axis, swing around the Z axis and rotate around the X axis, the drill rod is placed above the wellhead, and the drill rod and the power head can be coaxial through adjusting the angle of the drill rod, so that the coaxial with the wellhead is further ensured, the coaxiality is improved, the structure is compact, and the installation space is saved.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the lifting mechanism of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure of FIG. 2 taken in the direction A-A;

FIG. 4 is a schematic view of the swing mechanism, first adjustment assembly and rotary mechanism mounting structure of the present invention;

FIG. 5 is an enlarged schematic view of the structure of FIG. 4 at B;

FIG. 6 is a schematic view of the cross-sectional structure in the direction C-C of FIG. 4;

FIG. 7 is a schematic perspective view of FIG. 4;

FIG. 8 is a schematic view of a clamping mechanism according to the present invention;

FIG. 9 is a schematic view of the structure of FIG. 8 in section in the direction D-D;

FIG. 10 is a schematic side elevational view of FIG. 8;

FIG. 11 is a schematic view of an exploded perspective view of the clamping frame and rotary flange of the present invention;

FIG. 12 is a schematic view of an assembled perspective of the rotary mechanism and clamping mechanism of the present invention;

FIG. 13 is a schematic view of a first positioning member according to the present invention;

fig. 14 is a schematic view of a second positioning member according to the present invention.

In the figure, 100-a drilling tower, A10-a lifting mechanism, B10-a swinging mechanism, C10-a rotating mechanism, D10-a clamping mechanism, A1-a first frame body, A2-a moving frame, A3-a first driving piece, A4-a cam bearing, A5-a rack, A21-an ear plate, A22-a moving table, B1-a second frame body, B2-a second driving piece, C1-a third frame body, C2-a third driving piece, C3-a second positioning piece, C31-a second positioning end face, C32-a mounting hole, C11-a positioning hole, E1-a first arm, E2-a cover plate, E3-a second arm, E4-a third arm, E5-a first correcting piece, E6-a supporting shaft, E7-a second correcting piece, E21-a boss, E11-a first connecting section, E12-a first adjusting section, E13-fixed holes, E31-second connecting sections, E32-second adjusting sections, E41-sliding plates, E42-clamping plates, D1-clamping frames, D2-first clamping claws, D3-second clamping claws, D4-fourth driving members, D5-first rotating shafts, D6-second rotating shafts, D7-first gears, D8-second gears, D9-rotating flanges, D11-first adjusting members, D12-second adjusting members, D13-first adjusting holes, D14-second adjusting holes, D15-wrist arm sections, D16-connecting sections, D17-gear covers, D21-driving sections, D22-transmission sections, D23-clamping sections, D24-clamping slips, D25-slip blocks, D26-first clamping walls, D27-second clamping walls, D51-first keys, d52-first end cap, D53-first bearing, D54-second key, D55-second bearing, D56-a second end cover, D91-a third adjusting hole, D92-a first positioning piece and D93-a first positioning end surface.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.

The invention provides equipment for lifting and lowering a drill rod, which comprises a lifting mechanism A10, a swinging mechanism B10, a rotating mechanism C10 and a clamping mechanism D10. The lifting mechanism A10 is installed on the drilling tower 100 to incline along the drilling tower 100 at the same angle, and can drive the drill rod to move along the axial direction of the drilling tower 100 along the Z axis. The swinging mechanism B10 is connected with the lifting mechanism a10 to rotate the drill rod around the axial direction of the swinging mechanism B10. The rotary mechanism C10 is connected with the swinging mechanism B10 along the Y-axis in an adjustable position, and enables the drill rod to rotate around the axial direction of the rotary mechanism C10. The clamping mechanism D10 is connected with the rotating mechanism C10 along the X-axis in an adjustable position and clamps the drill rod. The Z axis, the Y axis and the X axis are perpendicular to each other.

Specifically, as shown in fig. 1, fig. 1 is a schematic diagram of the overall structure of the present invention.

The derrick 100 may employ a mast derrick so as to be inclined at a certain angle as required. The rig 100 is a structure known to those skilled in the art and will not be described in detail herein.

The lifting mechanism a10 may be mounted on the rig 100 by a screw or bolt fastening, or by other fastening means, but is not limited thereto. The angle of placement of the rig 100 is the same as the angle of the well being drilled by the rig so that the lifting mechanism a10 can be tilted by the same angle with the rig 100 and thus can be adapted to the drilling of vertical and inclined wells. And the coaxiality of the axis of the drill rod and the axis of the wellhead is improved. In addition, the lifting mechanism a10 may also drive the drill rod to move along the height extending direction of the rig 100.

Here, the height direction of the rig 100 may be set as a Z-axis. Taking the rig 100 as an example of a vertical placement, the Z-axis direction is the up-down direction. The swinging mechanism B10, the rotating mechanism C10, and the clamping mechanism D10 may be sequentially connected along an X-axis, which may be a horizontal direction perpendicular to the Z-axis, that is, a front-rear direction. The Y axis is the horizontal direction perpendicular to the Z axis and the X axis at the same time, namely the direction perpendicular to the paper surface, and the left and right directions.

The axis of the swinging mechanism B10 can be arranged along the Z-axis direction, so that the swinging mechanism B10 can drive the drill rod to swing around the Z-axis. The axis of the rotation mechanism C10 may be disposed along the X-axis direction, so that the rotation mechanism C10 can rotate the drill rod around the X-axis.

The rotating mechanism C10 can be adjusted left and right along the Y-axis direction relative to the swinging mechanism B10, and the clamping mechanism D10 can be adjusted back and forth along the X-axis relative to the rotating mechanism C10. Therefore, the axis of the drill rod is coaxial with the axis of the wellhead in the extending directions of the Y axis and the X axis, and the coaxiality of the drill rod, the wellhead and the power head is improved. The rotation mechanism C10 can also swing around the Y-axis with respect to the swinging mechanism B10 to be adjustable, i.e. adjust the inclination of the drill rod. Therefore, under the condition that the length dimension of the drill rod is much larger than the radial dimension, the drill rod is prevented from tilting, so that the axis of the drill rod is adjusted to be coaxial with the axis of the wellhead in the circumferential direction around the Y axis, and the coaxiality of the drill rod and the wellhead is improved.

The working process of the invention is that the axis of the power head and the axis of the wellhead are coaxially arranged, and the lifting mechanism A10 drives the drill rod to move downwards along the Z axis, so that the clamping mechanism D10 can clamp the drill rod; the lifting mechanism A10 drives the drill rod to move upwards along the Z-axis direction, so that the drill rod can reach the lower part of the power head in the Z-axis direction after swinging and rotating. The swinging mechanism B10 drives the drill rod to swing around the Z axis, and the rotating mechanism C10 drives the drill rod to rotate around the X axis, so that the drill rod moves to the lower part of the power head. If the axis of the drill rod deviates from the axis of the power head, the axes of the drill rod and the power head need to be coaxially adjusted. The coaxial adjusting process comprises the following three steps of adjusting according to the need without sorting, namely, the first step, wherein the position of the clamping mechanism D10 relative to the rotating mechanism C10 can be adjusted along the extending direction of the X axis; step two, the position of the rotating mechanism C10 relative to the swinging mechanism B10 can be adjusted along the extending direction of the Y axis; and step three, swinging the position of the adjusting and rotating mechanism C10 relative to the swinging mechanism B10 around the Y axis so as to adjust the inclination of the drill rod. And after the adjustment is completed, the drill rod is installed on the power head. And then drilling operation is carried out under the driving of the power head. And after drilling is completed, recovering the drill rod to the drill rod box. When the wellhead at the same angle is drilled, the drill rod can be coaxially adjusted once when being firstly installed on the power head, so that the drill rod is coaxial with the power head. The connection between the power head and the drill rod and the drilling of the driving drill rod are both in the prior art, and are not limited and are not described herein.

According to the invention, through the arrangement of the lifting mechanism A10, the swinging mechanism B10, the rotating mechanism C10 and the clamping mechanism D10, the lifting mechanism A10 is arranged on the drilling tower 100, so that a drill rod and the drilling tower 100 can be inclined by the same angle, the angle of the lifting mechanism A10, namely the Z-axis of the space where the drill rod is positioned, can be adjusted, and is suitable for drilling vertical wells and inclined wells, and the coaxiality of the drill rod, a wellhead and a power head can be improved. The rotating mechanism C10 can be adjusted in position along the Y axis relative to the swinging mechanism B10, and the clamping mechanism D10 can be adjusted in position along the X axis relative to the rotating mechanism C10; in addition, the swinging mechanism B10 can drive the drill rod to swing around the Z axis, the rotating mechanism C10 can drive the drill rod to rotate around the X axis, so that the drill rod can move along the Z axis, swing around the Z axis and rotate around the X axis, the drill rod is placed above the wellhead, the coaxiality of the drill rod and the power head can be realized by adjusting the angle of the drill rod, the coaxiality with the wellhead is further ensured, the coaxiality is improved, the structure is compact, and the installation space is saved.

As an alternative embodiment, the elevating mechanism a10 includes a first frame body A1, a moving frame A2, and a first driving member A3. The movable frame A2 movably clamps the first frame body A1, and the first driving piece A3 is arranged on the movable frame A2 and is in transmission connection with the first frame body A1 so as to drive the movable frame A2 to move along the first frame body A1. The first frame A1 is mounted to the rig 100.

In particular, as shown in fig. 2 and 3, fig. 2 is a schematic structural view of the lifting mechanism of the present invention. FIG. 3 is a schematic view of the cross-sectional structure of FIG. 2 taken in the direction A-A.

The first frame A1 may be fixedly mounted to the derrick 100 by screws or bolts. The length extending direction of the first frame A1 and the height direction of the rig 100 are the same, and are both Z-axis directions. The first frame A1 may have a truss structure, which is known to those skilled in the art. A plurality of proximity switches and a controller may be further included, wherein the plurality of proximity switches and the first driving member 3 are electrically connected to the controller, respectively. The plurality of proximity switches are arranged on the first frame body 1 at intervals along the Z-axis direction. The controller receives a signal of the proximity switch to control the first driving member 3 to be started or closed. Therefore, the proximity switch can realize the limit requirement of limit positions of drill rods with different lengths and the requirement of implementing the swinging and rotating actions of the drill rods simultaneously.

The movable frame A2 may adopt a U-shaped structure, and two ends of the movable frame A2 may clamp corresponding left and right ends of the first frame body A1, that is, in the Y-axis direction. The first driving piece A3 can be fixedly arranged on the movable frame A2 through a screw or a bolt and is in transmission connection with the first frame body A1, so that the movable frame A2 can be driven to move along the Z axis of the first frame body A1, and the drill rod can be further driven to move along the Z axis.

Further, two ends of the movable frame A2 are correspondingly connected with a plurality of side surfaces at two ends of the first frame body A1 in a rolling way through cam bearings A4. The first driving member A3 employs a low-speed hydraulic motor.

Specifically, as shown in fig. 2 and 3, the moving frame A2 includes two ear plates a21 and a moving table a22, and the ear plates a21 are respectively disposed at the left and right sides of the moving table a22 and fixedly mounted with the moving table a22, and can be fixedly mounted by screws or bolts, which is not limited herein. The first driving piece A3 is fixedly arranged on the mobile station A22, and the output end of the first driving piece A3 movably penetrates through the mobile station A22 and is in transmission connection with the first frame body A1. A cam bearing A4 is mounted on the inner side wall of the ear plate a 21. The cam bearings A4 may be arranged in three groups on each ear plate a21, and each group corresponds to the front, left and right sides of the guide rail formed by the side ends of the first frame body A1, that is, corresponds to the three side surfaces of the first frame body A1 respectively and is in rolling connection. The eccentricity of the cam bearing A4 can be adjusted to optimize the contact clearance with the guide rail, thereby facilitating the rolling of the cam bearing A4 along the guide rail.

The first driving piece A3 can adopt a low-speed hydraulic motor with a braking function, and compared with a mode of adopting a motor and a speed reducer, the low-speed hydraulic motor is simple and compact in structure and can be connected with a hydraulic lock, so that a double self-locking function is realized, and the low-speed hydraulic motor is safer and more reliable.

Further, the output end of the first driving member A3 is engaged with the rack A5. Rack A5 is mounted on

The first frame A1 is positioned inside the movable frame A2.

Specifically, as shown in fig. 2 and 3, the rack A5 may be fixedly mounted on the first frame A1 by a screw or a bolt, and the length extension direction of the rack A5 is set in the same direction as the first frame A1, so that the output end of the first driving member A3 is engaged with the rack A5, and the first driving member A3 drives the moving frame A2 to move along the length direction of the first frame A1.

As an alternative embodiment, the swing mechanism B10 includes a second frame body B1 and a second driving piece B2. The second driving member B2 is mounted on the second frame B1. The second frame B1 is mounted on the lifting mechanism a 10. The rotation mechanism C10 includes a third frame body C1 and a third driving member C2. The third driving member C2 is mounted on the third frame C1. The third frame C1 is connected to the second driving member B2 in a position adjustable along the Y axis. The clamping mechanism D10 is connected with a third driving piece C2 in an adjustable position along the X axis.

In particular, as shown in fig. 1 and 4, fig. 4 is a schematic view of the swing mechanism, the first adjusting assembly and the rotary mechanism mounting structure of the present invention.

The second frame B1 may be fixedly mounted to the lifting mechanism a10 by screws or bolts, and specifically, mounted to the moving stage a22 of the moving frame A2 of the lifting mechanism a 10. The second driving member B2 may be fixedly mounted to the second frame body B1 by a screw or a bolt. The third frame body C1 can be fixedly installed with the third driving piece C2 through a screw or a bolt, and the third frame body C1 is connected with the output end of the second driving piece B2 along the Y-axis adjustable position; the output end of the third driving piece C2 is connected with the clamping mechanism D10 along the adjustable position of the X axis. The structures of the second frame B1 and the third frame C1 may be set as needed, and are not limited herein.

Further, the second driving member B2 and the third driving member C2 each employ a low-speed hydraulic swing cylinder.

Specifically, as shown in fig. 4, the structure is very simple and compact by the arrangement of the low-speed hydraulic swing cylinder. The output end of the second driving piece B2 can drive the rotating mechanism C10 and the clamping mechanism D10 to swing around the Z axis to the wellhead together so as to realize feeding of the drill rod or swing from the wellhead to the side edge of the drilling tower 100 so as to realize recovery of the drill rod. Mechanical positioning, which is easily known to those skilled in the art, can be provided in the second driving member B2, thereby ensuring the repeated positioning accuracy of the second driving member B2. And the second driving piece B2 can be further provided with a proximity switch, and stepless speed reduction can be performed when the swinging approaches to the end position through the arrangement of the proximity switch, so that the stability of the drill rod when the drill rod rotates to the position is ensured.

As an alternative embodiment, the rotary mechanism C10 is connected to the swinging mechanism B10 by a first adjusting assembly E10, which is adjustable in position along the Y axis. The first adjusting assembly E10 includes a first arm E1, a cover plate E2, a second arm E3, and a third arm E4. One side of the cover plate E2 is connected with the second arm E3, and the other side is connected with the first arm E1 in an adjustable gap. Such that the first arm E1 and the second arm E3 are rotatably connected around the Y axis. The first arm E1 is slidably embedded with the third arm E4 along the Y axis. The third arm E4 is connected to the swing mechanism B10. The second arm E3 is connected to the rotation mechanism C10.

Specifically, as shown in fig. 4 to 7, fig. 5 is an enlarged schematic view of the structure at B in fig. 4. FIG. 6 is a schematic view of the cross-sectional structure in the direction C-C of FIG. 4. Fig. 7 is a schematic perspective view of fig. 4.

One side of the cover plate E2 and the second arm E3 may be fixedly mounted by a screw or a bolt, and one side of the cover plate E2 may be fixedly connected with the second arm E3, for example, to form an integral structure. The connection of one side of the cover E2 to the second arm E3 is not limited here.

The other side of the cover plate E2 is connected with the adjustable gap of the first arm E1, and the adjustable gap of the other side of the cover plate E2 and the first arm E1 is used as a correction action. Because one side of the cover plate E2 is fixedly installed with the second arm E3, the other side of the cover plate E2 can drive the second arm E3 to rotate when the gap is adjusted, namely the first arm E1 and the second arm E3 are rotationally connected when the gap is adjusted, the second arm E3 can rotate around the Y axis relative to the first arm E1, and accordingly the second arm E3 drives the drill rod and the second arm E3 to swing along the same rotation axis in the rotating process so as to adjust the inclination of the drill rod, and coaxiality of the drill rod, the power head and the wellhead is improved.

The first adjusting assembly E10 is installed and calibrated by rotatably connecting the second arm E3 with respect to the first arm E1 in the Y-axis direction, fixedly installing one side of the cover E2 on the second arm E3, and connecting the other side of the cover E2 with the first arm E1 in a gap manner and adjusting the gap between the other side of the cover E2 and the first arm E1. During the adjustment of the adjustment gap, the second arm E3 may rotate around the Y axis relative to the first arm E1, so that the second arm E3 drives the drill rod to swing around the Y axis to correct the inclination of the drill rod. After the correction, the first arm E1 and the second arm E3 may be fixedly installed by screws or bolts.

Through the setting of first arm E1, apron E2 and second arm E3, with the one side and the second arm E3 fixed mounting of apron E2, the opposite side is with the adjustable clearance of first arm E1 be connected. Therefore, when the correction is carried out, the second arm E3 can rotate around the Y axis relative to the first arm E1 in the process of adjusting the gap on the other side of the cover plate E2 through the rotation connection of the first arm E1 and the second arm E3, and then the second arm E3 can drive the drill rod to swing around the Y axis, so that the correction of the inclination angle of the drill rod is realized.

One side of the third arm E4 is connected with the output end of the second driving piece B2 of the swinging mechanism B10, and the other side of the third arm E4 is connected with the first arm E1, so that the third arm E4 can drive the first arm E1 to swing around the Z axis through the second driving piece B2, and further drive the drill rod to swing around the Z axis. The second arm E3 is connected to the third frame C1 of the rotation mechanism C10, thereby realizing indirect connection of the rotation mechanism C10 and the swing mechanism B10.

Further, the cover plate E2 has a boss E21 for forming a gap, and the other side of the cover plate E2 is connected to the first arm E1 through the first correcting member E5 to adjust the size of the gap.

Specifically, as shown in fig. 4 to 7, the inner side wall of the cover plate E2 is formed with a boss E21. The boss E21 may be formed at one side of the cover plate E2, and fixedly installed with the second arm E3 by penetrating the boss E21 with a screw or bolt. Thereby making the mounting of the cover plate E2 with the second arm E3 more stable. The arrangement by the boss E21 may be a gap-free arrangement between the cover E2 and the second arm E3. Of course, the boss E21 may be formed in the middle or other parts of the inner sidewall of the cover E2 according to the design of the structure, so long as an adjustable gap can be formed between the cover E2 and the first arm E1. The maximum distance of the gap is the thickness of the boss E21, and the boss thickness is set according to the range to be corrected.

The first correcting element E5 is screwed with the first arm E1. The first correcting piece E5 sequentially penetrates through the cover plate E2 and the gap and then stretches into the first arm E1 to be in threaded connection with the first arm E1. The size of the gap is equal to the thickness of the boss E21 at this time. When the gap is adjusted, the first correcting element E5 can rotate clockwise, so that the gap is reduced, the first correcting element E5 increases the depth of extending into the first arm E1, and the second arm E3 rotates around the Y axis relative to the first arm E1 to correct the inclination of the drill rod; if the reverse correction is needed, the first correction element E5 can be rotated anticlockwise, so that the gap is increased, the first correction element E5 reduces the depth of the first arm E1, and the second arm E3 rotates around the Y axis relative to the first arm E1 to correct the inclination of the drill rod.

The first correcting element E5 can adopt a fine tooth screw or a bolt, so that the fine adjustment of the gap adjustment can be realized, and the fine correction of the inclination angle of the drill rod in a certain range can be realized. Such as 0.5 degree or 1 degree tilt angle correction.

The first arm E1 comprises a first connection section E11 and a first adjustment section E12 connected to each other. The second arm E3 includes a second connection section E31 and a second adjustment section E32 connected to each other. The second adjusting section E32 is rotatably inserted into the first adjusting section E12 and is fixedly mounted thereto. The cover plate E2 covers the second adjusting section E32 and the first adjusting section E12 to adjust the gap. The first connecting section E11 is slidably embedded with the third arm E4 along the Y axis. The second connecting section 31 is connected to the third frame C1 of the rotation mechanism C10.

The first connecting section E11 and the first adjusting section E12 may be integrally formed, and the second connecting section E31 and the second adjusting section E32 may be integrally formed. The second adjusting section E32 is rotatably extended into the first adjusting section E12. After correction, the first adjusting section E12 can be penetrated through by a screw or a bolt and then is in threaded connection with the second adjusting section E32 so as to be fixedly installed.

The cover plates E2 may be two and cover the upper and lower sides of the second adjustment section E32 and the first adjustment section E12, respectively, so as to increase the stability of the correction. One side of the cover plate E2 is connected with the first adjusting section E12 for fixed installation. The other side of the cover plate E2 is connected with the second adjusting section E32 in an adjustable gap. The second adjustment section E32 can be screwed through the other side of the cover plate E2 by means of a first correction element E5.

The first arm E1 and the second arm E3 are rotatably connected by a support shaft E6.

The support shaft E6 penetrates the first arm E1 and the second arm E3 such that the second arm E3 can rotate with respect to the first arm E1 with the axis of the support shaft E6, that is, the Y-axis. Circlips for shafts may be respectively sleeved at both ends of the supporting shaft E6 to prevent the supporting shaft E6 from being separated from the first arm E1 and the second arm E3. The support shaft E6 may penetrate the first and second adjustment sections E12 and E32.

The first arm E1 is provided with an arc-shaped fixing hole E13 for fixedly mounting with the second arm E3. The center of the arc is positioned on the axis of the supporting shaft E6.

Since the fixed mounting of the first arm E1 and the second arm E3 needs to be performed after the correction, and the first arm E1 can rotate relative to the second arm E3 during the correction, in order to fix the first arm E1 and the second arm E3, the fixing hole E13 needs to be configured into an arc shape, so that the penetrating mounting of the screw or the bolt is facilitated. The center of the arc is located on the axis of the supporting shaft E6, so that the radian of the fixing hole E13 can be matched with the radian of the second arm E3 rotating along the axis of the supporting shaft E6.

The fixing holes E13 are provided in plurality. The plurality of fixing holes E13 are distributed around the same circle center at intervals.

In order to increase the stability of the installation of the first and second arms E1 and E3, the fixing holes E13 may be provided in plurality. The fixing holes E13 are formed in an arc shape and are distributed around the same circle center at intervals, that is, the fixing holes E13 are located at different positions of the same circle, and the circle center of the circle is located on the axis of the supporting shaft E6. So that the screw or bolt for fixedly mounting the first arm E1 and the second arm E3 can be fixedly mounted at different positions in the fixing hole E13 when the second arm E3 is rotated along the axis of the support shaft E6. The plurality of fixing holes E13 may be equally spaced.

A second correction element E7 is also included. The first arm E1 is slidably embedded with the third arm E4. The second correcting member E7 is connected to the first arm E1 through the third arm E4 such that the first arm E1 is slidably adjustable along the third arm E4. The third arm E4 is engaged with one side of the second calibration member E7. The other side of the second correcting member E7 is screwed with the first arm E1.

The third arm E4 includes a slide plate E41 and a catch plate E42. A clip board E42 is connected to one side of the slide board E41. The slide plate E41 may be connected to the clamping plate E42 by a screw or a bolt, or may be formed as an integral structure with the clamping plate E42. The slide plate E41 is provided with a slide groove for slidably embedding the first arm E1. The opening direction of the sliding groove can be set according to the direction in which the first arm E1 needs to slide, for example, along the horizontal direction of the Y axis. Since the first arm E1 and the second arm E3 are fixedly installed after correction, the position of the drill rod in the extending direction of the Y axis can be adjusted by sliding the first arm E1. After the sliding adjustment of the first arm E1 is completed, the first arm E1 and the third arm E4 are fixedly installed to fix the adjusted position of the drill rod. The catch plate E42 may be located at a side port of the chute and used for the second correcting element E7 to pass through for connection with the first arm E1 in the chute. The clamping plate E42 is used for enabling the passing side of the second correcting piece E7 to be clamped in the clamping plate E42, so that the first arm E1 is pushed to slide in the sliding groove through rotation of the second correcting piece E7, and the position of the drill rod is adjusted.

As an alternative embodiment, the clamping mechanism D10 includes a clamping frame D1, a first jaw D2, a second jaw D3, and a fourth driver D4. The first claw D2 and the second claw D3 are connected in a meshed mode and are rotatably arranged on the clamping frame D1. The fourth driving member D4 is mounted to one side of the first and second jaws D2 and D3 to drive the first and second jaws D2 and D3 to clamp the drill rod. The clamping frame D1 is connected with a rotating mechanism C10 through a rotating flange D9 in an adjustable position along the X axis.

Specifically, as shown in fig. 8 to 11, fig. 8 is a schematic structural view of the clamping mechanism of the present invention. Fig. 9 is a schematic view of the sectional structure in the direction D-D in fig. 8. Fig. 10 is a schematic side view of fig. 8. Fig. 11 is a schematic view showing a three-dimensional exploded structure of the clamping frame and the rotary flange of the present invention.

The first clamping jaw D2 is rotatably arranged on the clamping frame D1 through a first rotating shaft D5, the second clamping jaw D3 is rotatably arranged on the clamping frame D1 through a second rotating shaft D6, and the first rotating shaft D5 and the second rotating shaft D6 are in meshed connection through a first gear D7 and a second gear D8 which are respectively and correspondingly arranged.

The holder D1 includes a wrist arm section D15 and a connecting section D16, which may be of unitary construction. The wrist arm sections D15 may be provided in two and located on both sides of the connecting section D16, respectively. Each arm segment D15 is configured to be connected to the first shaft D5 and the second shaft D6, so that the first jaw D2, the second jaw D3, the first gear D7, the second gear D8, the fourth driving member D4, the clamping assemblies formed by the first shaft D5 and the second shaft D6 are two and are respectively mounted on the two arm segments D15 correspondingly. The span of the two clamping assemblies can be adjusted through the length setting of the cantilever section D15, so that the requirements of drilling rods with different lengths on different spans can be met. If the length of the drill rod is longer, a clamping frame D1 with a long span can be selected; if the drill rod length is short, a short span of clamping frame D1 may be selected. The connecting section D16 is connected with the rotary flange D9, so that the rotary mechanism C10 drives the clamping frame D1 to rotate, and then drives the first clamping jaw 1 and the second clamping jaw 2 to grasp the drill rod and then move the drill rod to the wellhead position.

The gear cover D17 can be covered outside the first gear D7 and the second gear D8 to prevent dust and collision of external objects, so that the meshing transmission stability of the first gear D7 and the second gear D8 is improved. The gear cover D17 may be fixedly mounted to the cantilever section D15 of the holder D1 by screws or bolts.

The first rotating shaft D5 and the second rotating shaft D6 are respectively rotatably penetrated by the wrist arm section D15. The first claw D2 and the first gear D7 are respectively fixedly sleeved with the first rotating shaft D5, so that the first claw D2 can drive the first rotating shaft D5 to rotate, and then the first gear D7 is driven to rotate. The second rotating shaft D6 is fixedly sleeved on the second claw D3 and the second gear D8 respectively, the first gear D7 is meshed with the second gear D8, and accordingly the first gear D7 rotates to drive the second gear D8 to rotate, the second rotating shaft D6 is driven to rotate, and the second rotating shaft D6 drives the second claw D3 to rotate.

The fourth driving member D4 may be a hydraulic cylinder, and an output end of the hydraulic cylinder may be linearly reciprocated and rotationally connected to upper ends of the first jaw D2 and the second jaw D3, respectively, and the rotational connection may be implemented in a manner in the prior art, for example, through a bearing, which is not limited herein. The lower side ends of the first claw D2 and the second claw D3 are grabbing ends for the drill rod.

The working process of grabbing the drill rod is that when the output end of the fourth driving piece D4 stretches, the first claw D2 is pushed to rotate anticlockwise by taking the axis of the first rotating shaft D5 as a central axis, so that the first rotating shaft D5 and the first gear D7 are driven to rotate anticlockwise; and the second gear D8 rotates clockwise, thereby driving the second rotation shaft D6 and the second jaw D3 to rotate clockwise. And then the upside end of first jack catch D2 and second jack catch D3 separates each other, and the downside end is close to each other, realizes snatching the drilling rod. Conversely, when the output end of the fourth driving member D4 is contracted, the upper ends of the first jaw D2 and the second jaw D3 are pulled to be close to each other, and the lower ends are separated from each other, so that the drill rod is released.

Through the arrangement of the first clamping jaw D2, the second clamping jaw D3, the first rotating shaft D5, the second rotating shaft D6, the first gear D7, the second gear D8 and the fourth driving piece D4, the output end of the fourth driving piece D4 stretches and contracts to drive the first clamping jaw D2 and the second clamping jaw D3 to rotate anticlockwise and clockwise along the first rotating shaft D4 and the second rotating shaft D6 respectively, and a power source is provided for the rotation of the first clamping jaw D2 and the second clamping jaw D3; the first gear D7 is in meshed connection with the second gear D8, so that the first gear D7 rotates to drive the second gear D8 to rotate, and rotation is transmitted to the second claw D3. Realize the synchronous rotation of first jack catch D2 and second jack catch D3 to can guarantee that the axis of the snatch space that the snatch side of first jack catch D2 and second jack catch D3 encloses to establish remains parallel throughout with the axis of drilling rod, and then after snatching the drilling rod, avoid the axis of drilling rod to take place the slope, improve the precision of snatching the drilling rod.

The first jaw D2 includes a driving section D21, a transmitting section D22, and a grasping section D23 connected in order from one side to the other side. The driving section D21 is rotatably connected to the output end of the fourth driving element D4. The transmission section D22 is fixedly sleeved with the first rotating shaft D5 and is positioned on one side of the first gear D7. The gripping section D23 opens and closes to release or grip the drill rod. The first jaw D2 and the second jaw D3 may be provided in a symmetrical structure, and only the structure of the first jaw D2 will be described in detail herein. The second claws D3 each have a structure of a first claw D2 described below. In addition, the first claw D2 may be located at the front side of the second claw D3, and the upper side end of the output end rotation connection of the second claw D3 and the fourth driving member D4 may be set according to the structure of the output end of the fourth driving member D4, for example, to perform an arc transition design to the outside, which is not limited herein. The driving section D21, the transmission section D22 and the grabbing section D23 are sequentially connected from one side to the other side, and can be integrally of an integrated structure or of a split structure. Can be connected from top to bottom in sequence, and can also be connected in sequence according to other directions according to actual construction needs.

The driving section D21 is configured to be rotatably connected to an output end of the fourth driving member D4, so that the first jaw D2 rotates along the first rotation axis D5. The transmission section D22 is used for fixedly sleeving the first rotating shaft D5, so that the transmission section D22 can drive the first rotating shaft D5 to rotate, and then the first rotating shaft D5 drives the first gear D7 to rotate, and rotation is transmitted from the transmission section D22 to the first gear D7. The first gear D7 may be integrally formed with the first rotation shaft D5, or may be detachably formed, and is not limited thereto. The grasping section D23 and the driving section D21 are opposite side ends of the transmitting section D22, so that the grasping section D23 rotates backward when the driving section D21 rotates forward. Through the setting of drive segment D21, drive segment D22 and snatch segment D23, can make first jack catch D2 realize transmitting the rotation to second jack catch D3 through rotating along first pivot D5 to rotate in step with second jack catch D3, and then realize the accurate snatch to the drilling rod.

The gripping section D23 is connected to the gripping slips D24. The gripping slips D24 are connected to slip segments D25 having slip resistant threads to increase the reaction torque of the drill pipe.

The grip slips D24 may be connected to the gripping segment D23 by screws or bolts to be fixedly mounted on the gripping segment D23. To facilitate axial positioning of the drill pipe, the clamping slips D24 may be arranged in a V-shaped structure and two. The inner wall of the gripping section D23 may be adapted to the outer wall of the gripping slips D24. Two clamping slips D24 are respectively correspondingly arranged on the first clamping jaw D2 and the second clamping jaw D3. Two clamping slips D24 which are oppositely arranged on the opening can be enclosed to form a grabbing space. Slip segments D25 may be provided in a strip-like configuration and fixedly mounted to the V-shaped side walls of the gripping slips D24 by screws or bolts. The slip segments D25 may have slip resistant lines on the surface facing the drill pipe to provide sufficient reaction torque when the drill pipe is being pulled by the power head after the drill pipe is clamped.

The first jaw D2 includes a first jaw wall D26 and a second jaw wall D27 that are symmetrically disposed. The first clamping wall D26 and the second clamping wall D27 are fixedly arranged on one side of the first gear D7 in a penetrating mode, and are rotatably connected with the output end of the fourth driving piece D4 at the same side end.

The first jaw D2 may be divided into a first clamping wall D26 and a second clamping wall D27 which are symmetrically disposed in the left-to-right direction, wherein the first clamping wall D26 and the second clamping wall D27 may each have a driving section D21, a driving section D22 and a grabbing section D23 which are sequentially connected from top to bottom. The first gear D7 may be located at one side of the second chuck wall D27. Through the arrangement of the first clamping wall D26 and the second clamping wall D27, manufacturing materials can be saved, and meanwhile, the assembly and the disassembly are convenient.

The first jaw D2 and the second jaw D3 are symmetrical structures and are combined to form an X-like structure.

The first jaw D2 and the second jaw D3 are combined to form an X-like structure according to the installation position, and the first jaw D2 and the second jaw D3 are synchronously rotated by the meshing connection of the first gear D7 and the second gear D8.

The first rotation axis D5 and the second rotation axis D6 may have the same structure, and only the structure of the first rotation axis D5 will be described in detail, and the structure of the second rotation axis D6 will not be described again.

The first rotation shaft D5 may be connected with a first key D51, a first end cap D52, a first bearing D53, a second key D54, a second bearing D55, and a second end cap D56 in order from right to left. The first key D51 is connected to the first gear D7, so that after the first gear D7 is sleeved with the first rotating shaft D5, the first rotating shaft D5 can rotate to drive the first gear D7. The second key D54 is connected to the first jaw D2, so that the first jaw D2 can drive the first shaft D5 to rotate after the first shaft D5 is sleeved on the first jaw D2. The first end cap D52 and the first bearing D53 and the second bearing D55 and the second end cap D56 are respectively arranged right-left symmetrically with respect to the second key D54 or with respect to the first claw D2. The first and second end caps D52 and D56 may be symmetrically mounted to the outer side wall of the holder D1 by screws or bolts, respectively, for restraining the first rotation shaft D5 to the holder D1. The first bearing D53 and the second bearing D55 may be symmetrically fixed through an inner wall of the clamping frame D1, respectively, for enabling the first rotation shaft D5 to rotate relative to the clamping frame D1, so that rotation can be transmitted to the first gear D7 to enable the first jaw D2 and the second jaw D3 to rotate synchronously.

The device further comprises a first adjusting piece D11 and a second adjusting piece D12 for adjusting the axial distance between the end faces of the rotary flange D9 and the clamping frame D1, namely the distance between the end faces in the extending direction of the X axis. The first adjusting piece D11 is penetrated through the clamping frame D1 and then is abutted against the rotary flange D9 so as to increase the axial distance between the end faces. The second adjusting member D12 penetrates the rotary flange D9 and the clamping frame D1 to reduce the axial distance between the end faces. The clamping frame D1 is sleeved with a rotary flange D9. The rotary flange D9 is connected with the output end of a third driving piece C2 of the rotary mechanism C10, and the rotary flange D9 is driven to rotate through the third driving piece C2. The connecting section D16 of the clamping frame D1 is used for sleeving the rotary flange D9. After the axial distance between the end faces of the rotary flange D9 and the connecting section D16 is adjusted, the rotary flange D9 and the connecting section D16 can be fixedly installed through screws or bolts, so that the rotary flange D9 can rotate to drive the connecting section D16, namely the clamping frame D1, and the drill rod clamped by the first clamping jaw D2 and the second clamping jaw D3 can be driven to rotate, so that the drill rod can be placed under the power head.

The rotary flange D9 is sleeved on the clamping frame D1, and the front end faces of the clamping frame D1 and the rotary flange D9 can be used as adjusting end faces. The first adjusting member D11 and the second adjusting member D12 may be mounted on the clamping frame D1 and the rotating flange D9, respectively, and the axial distance of the front end surfaces of the clamping frame D1 and the rotating flange D9 may be increased by the first adjusting member D11; the axial distance between the clamping frame D1 and the front end face of the rotary flange D9 is reduced by the second adjusting member D12. So that the rotary flange D9 is fixedly installed, the holder D1 can be moved back and forth along its axis by the first and second regulating members D11 and D12 to increase or decrease the distance between the holder D1 and the front end surface of the rotary flange D9. The axis of the drill rod clamped by the first clamping jaw D2 and the second clamping jaw D3 can reach the axis position of the power head in the X-axis direction synchronously, and the axis position of the drill rod can be adjusted in the front-rear direction of the clamping frame D1.

The clamping frame D1 is provided with a first adjusting hole D13 and a second adjusting hole D14. The rotary flange D9 is provided with a third adjusting hole D91. The first adjusting hole D13 and the third adjusting hole D91 are correspondingly communicated. The first adjusting piece D11 is threaded through the second adjusting hole D14 and abuts against the rotating flange D9. The second adjusting member D12 is threaded with the third adjusting hole D91 after passing through the first adjusting hole D13. The rotary flange D9 is connected with the clamping frame D1 through axial keys.

In order to improve the adjustment accuracy of the end face axial distance between the clamping frame D1 and the rotary flange D9, the first adjusting piece D11 and the second adjusting piece D12 are respectively connected with the second adjusting hole D14 and the third adjusting hole D91 by fine threads. The first and second adjusting members D11 and D12 may each be a screw or bolt with fine threads. The first adjusting hole D13 may be a smooth hole, that is, the inner wall of the hole is a smooth inner wall, and the first adjusting hole D13 may be in clearance fit with the second adjusting member D12, so that the second adjusting member D12 may conveniently and smoothly pass through and rotate in the first adjusting hole D13 without any obstacle during rotation adjustment.

The first adjusting holes D13 and the second adjusting holes D14 may be disposed in a plurality of positions and are disposed on the clamping frame D1 at intervals, and may be disposed symmetrically up and down, and hereinafter, disposed on the upper portion of the clamping frame D1 as an example. The first adjusting holes D13 may be opened in three or more, and the second adjusting holes D14 may be opened in two or more, wherein the first adjusting holes D13 and the second adjusting holes D14 are opened at intervals, thereby improving the uniformity of adjustment. The third adjustment hole D91 may be formed in the rotary flange D9 and may be formed vertically symmetrically, and hereinafter, it is exemplified that it is formed in the upper portion of the rotary flange D9. The third adjusting holes D91 are correspondingly formed in three positions with the first adjusting holes D13.

When in use, the rear end of the first adjusting piece D11 is in threaded connection with the second adjusting hole D14, passes through the second adjusting hole D14, extends out of the rear end face of the clamping frame D1, and is abutted against the front end face of the rotary flange D9. The rotary flange D9 is fixedly installed, the first adjusting piece D11 is rotated to increase the length of the first adjusting piece D11 extending out of the rear end face of the clamping frame D1, and the rear end of the first adjusting piece D11 abuts against the front end face of the rotary flange D9, so that the clamping frame D1 can be pushed to move forwards along with the rotation of the first adjusting piece D11, and the axial distance between the clamping frame D1 and the rotary flange D9 is increased. After the second adjusting piece D12 is adjusted in place, the second adjusting piece D12 passes through the first adjusting hole D13 and is in threaded connection with the third adjusting hole D91, and the head of the second adjusting piece D12 is abutted against the front end face of the clamping frame D1, so that the axial distance between the end faces is fixed. The clamping frame D1 and the rotary flange D9 are then fixedly mounted.

If the axial spacing of the end faces needs to be reduced, the first adjusting piece D11 is rotated to reduce the distance that the rear end of the first adjusting piece D11 extends out of the clamping frame D1, so that the rear end of the first adjusting piece D11 is separated from the rotating flange D9. Because the head of the second adjusting piece D12 is stopped against the front end face of the clamping frame D1, rotating the second adjusting piece D12 can make the second adjusting piece D12 push the clamping frame D1 to move backward, so as to reduce the axial spacing of the end faces until the axial spacing of the end faces is required. The rear end of the first adjusting member D11 is then abutted against the rotary flange D9. After the clamping frame D1 and the rotary flange D9 are fixedly installed after the clamping frame is adjusted in place.

In the process of moving the clamping frame D1 back and forth to adjust the axial distance between the end faces, in order to improve the moving stability of the clamping frame D1, a key groove for axially sliding a key is formed in the circumferential inner wall of the rotating flange D9 sleeved on the clamping frame D1. The rotary flange D9 is provided with keys matched with the key grooves at the corresponding positions of the key grooves, so that the rotary flange D9 is connected with the clamping frame D1 through axial keys, and the guiding effect in the front-back movement process of the clamping frame D1 is achieved.

Further, the rotary flange D9 is mounted with a first positioning member D92. The second positioning piece C3 is mounted on the rotating mechanism C10 in an adjustable position, and the first positioning piece D92 and the second positioning piece C3 can be abutted to perform mechanical positioning.

In particular, as shown in fig. 12 to 14, fig. 12 is a schematic view showing an assembled perspective structure of the rotating mechanism and the clamping mechanism of the present invention. Fig. 13 is a schematic view of a first positioning member according to the present invention. Fig. 14 is a schematic view of a second positioning member according to the present invention.

The rotation mechanism C10 includes a third frame body C1 and a third driving member C2. The fixed end of the third driving member C2 is mounted on the third frame body C1, that is, the fixed end of the third driving member C2 may be partially sleeved on the third frame body C1. The output end of the third driving piece C2 is connected with the rotary flange D9 to drive the rotary flange D9 to rotate. Therefore, the fixed ends of the third frame body C1 and the third driving piece C2 are in a synchronous motion state, and the rotary flange D9 and the output end of the third driving piece C2 are in a synchronous motion state. Install second setting element C3 on third support body C1 to second setting element C3 is fixed or the motion in step with the stiff end of third support body C1 and third driving piece C2, and then first setting element D92 rotates to inconsistent with second setting element C3 along with rotatory flange D9, and second setting element C3 can play the effect that prevents first setting element C2 to continue rotatory to first setting element D92, thereby fixes a position first setting element D92, and then fixes a position the drilling rod.

The first positioning member D92 may be fixedly mounted on the rotary flange D9 by a screw or a bolt, and of course, the first positioning member D92 and the rotary flange D9 may also have an integral structure. So that the first positioning member D92 can rotate with the rotation of the rotating flange D9.

The third frame body C1 is provided with a plurality of positioning holes C11, and the positioning holes C11 are used for installing the second positioning piece C3 on the third frame body C1 so that the second positioning piece C3 and the third frame body C1 are fixedly arranged. The positioning hole C11 may have a through hole structure or a blind hole structure, as long as the second positioning member C3 can be mounted, and is not limited herein. The second positioning member C3 may be mounted on the third frame C1 through the positioning holes C11, and since the positioning holes C11 are provided in plurality, the second positioning member C3 may be mounted with a position changed between the plurality of positioning holes C11 to change a distance from the first positioning member D92, thereby realizing the position-adjustable mounting of the second positioning member C3 on the third frame C1.

The first positioning member D92 has a first positioning end surface D93, and the second positioning member C3 has a second positioning end surface C31. The first positioning end face D93 and the second positioning end face C31 are respectively corresponding to adjacent end faces which can be abutted against the first positioning piece D92 and the second positioning piece C3. So that the rotatable flange D9 is rotatable by an angle between the first positioning end face D93 and the second positioning end face C31. The first positioning end surface D93 and the second positioning end surface C31 may completely collide or may partially collide, which is not limited herein.

Through the arrangement of the rotary flange D9, the first positioning piece D92, the second positioning piece C3 and the third frame body C1, the first positioning piece D92 is installed on the rotary flange D9, so that the first positioning piece D92 rotates along with the rotary flange D9. The second positioning piece C3 is installed on the third frame body C1 in a position-adjustable mode through the positioning hole C11, and therefore a first rotation angle between the second positioning piece C3 and the first positioning piece D92 is adjustable. The position of the second positioning piece C3 on the third frame body C1 is adjusted according to the fact that the drilling angles of the drill rods are different, the first positioning piece D92 rotates along with the rotating flange D9, when the rotating flange D9 reaches the rotating angle set by the output end of the third driving piece C2, the rotating angle is set, namely the first rotating angle, the first positioning piece D92 abuts against the second positioning piece C3, the rotating flange D9 stops rotating, and therefore the first positioning piece D92 rotates to abut against the second positioning piece C3 to achieve mechanical positioning. Furthermore, the installation position of the second positioning member C3 can be adjusted according to the drilling angle of the drill rod, and the rotatable range of the first positioning member D92, that is, the first rotation angle, is also changed. And the coaxiality precision of the drill rod and the power head is improved.

The positioning holes C11 are distributed along the same arc, the plane of the arc is perpendicular to the rotation axis of the rotary flange D9, and the circle center of the arc is on the rotation axis.

The positioning holes C11 are arranged along the same circular arc, that is, the centers of the positioning holes C11 are on the same circular arc and are arranged on the third frame C1 at intervals. The plane where the circular arc is located is perpendicular to the rotation axis, and the circle center of the circular arc is on the rotation axis, so that the plurality of positioning holes C11 are equidistantly arranged from the rotation axis. The second positioning member C3 is mounted on the third frame body C1 through the positioning hole C11, so that the position of the second positioning member C3 can be adjusted in the circumferential direction along the rotation axis, that is, the radian between the second positioning member C3 and the first positioning member D92 can be adjusted around the circumferential direction of the X axis.

In order to make the first positioning piece D92 collide with the second positioning piece C3 after rotating along with the rotating flange D9, the plane of the first positioning piece D92 is perpendicular to the rotation axis, and the distance between the first positioning piece D92 and the rotation axis is equal to the distance between the second positioning piece C3 and the rotation axis. Alternatively, the partial structures of the first positioning member D92 and the second positioning member C3 are in the same plane perpendicular to the rotation axis, so that the first positioning member D92 and the second positioning member C3 may partially collide.

The second positioning member C3 is provided with a mounting hole C32 correspondingly communicating with the positioning hole C11. The mounting hole C32 is provided as at least one, and the mounting hole C32 is in fit communication with the plurality of positioning holes C11. The mounting holes C32 and the positioning holes C11 are distributed in an equal radian mode.

The second positioning piece C3 may be fixedly installed on the third frame body C1 by threading the mounting hole C32 through a screw or bolt and then screwing with the positioning hole C11. The mounting hole C32 may be one or more of the second positioning members C3 according to the requirement, or may be according to the length of the second positioning member C3, so as to increase the stability of the second positioning member C3. In one embodiment, the mounting holes C32 may be opened in two. The mounting holes C32 are connected with different positioning holes C11, so that the mounting position of the second positioning piece C3 is adjustable, the stepless adjustment of the first rotation angle is realized, and the mounting holes C32 are arranged in the same radian with the two positioning holes C11.

The plurality of positioning holes C11 are arranged at equal intervals in radian.

The plurality of positioning holes C11 may be arranged in an equally spaced arc, so that the second positioning member C3 may be advantageously selected between the plurality of positioning holes C11 to be installed according to need. The spacing arc may be set to 10 degrees, although other values of arc may be used. Also, the mounting hole C32 may be provided as an arc hole having a certain mounting arc, and the mounting arc of the mounting hole C32 may be formed to be the same arc as the interval arc. In an embodiment, the installation radian of the installation hole C32 may be set to be 10 °, so that when the position of the second positioning member C3 is adjusted, each time one positioning hole C11 is moved, stepless adjustment of the installation hole C32 in the installation radian of 0 ° to 10 ° can be realized, and the number of the positioning holes C11 can be designed according to the range of the required adjustment angle.

The first positioning piece D92 and the second positioning piece C3 are both arranged in an arc-shaped section structure.

The first positioning member D92 can rotate along with the rotating flange D9, and the second positioning member C3 can adjust the position on the third frame body C1 to achieve adjustable mechanical positioning by abutting the second positioning member C3 against the rotating first positioning member D92. Therefore, the adjustable position of the second positioning member C3 is the distribution radian of the plurality of positioning holes C11 disposed on the third frame C1. The second positioning member C3 may be provided in an arc-shaped segment structure, thereby facilitating adjustment of the second positioning member C3 in the arc direction. Likewise, the first positioning member D92 may be provided in an arc-shaped segment structure.

The first positioning member D92 rotates to an arc range of 90 ° to 135 ° against the second positioning member C3.

When drilling a vertical well, the first positioning piece D92 is required to rotate to the radian which is in contact with the second positioning piece C3 to be 90 degrees; when drilling an inclined shaft, the first positioning member D92 needs to be rotated until the maximum arc of the second positioning member C3 is 135 °. The second positioning member C3 can be adjusted within the range of 90 ° to 135 ° of the rotation arc of the first positioning member D92 to change the rotation arc of the first positioning member D92.

It should be noted that the "inward" is a direction toward the center of the accommodating space, and the "outward" is a direction away from the center of the accommodating space.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The above description is merely illustrative of the embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art may make changes, modifications, substitutions and variations to the above described embodiments within the technical scope of the present invention disclosed herein, and all those embodiments are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (9)

1. The equipment for lifting and lowering the drill rod is characterized by comprising a lifting mechanism (A10), a swinging mechanism (B10), a rotating mechanism (C10) and a clamping mechanism (D10);

the lifting mechanism (A10) is arranged on the drilling tower (100) to incline along with the drilling tower (100) at the same angle and drive the drill rod to move along the axial Z axis of the drilling tower (100);

the swinging mechanism (B10) is connected with the lifting mechanism (A10) so as to enable the drill rod to rotate around the axial Z axis of the swinging mechanism (B10);

the rotary mechanism (C10) is connected with the swinging mechanism (B10) along the Y-axis in an adjustable position, and the drill rod rotates around the axial X-axis of the rotary mechanism (C10);

the clamping mechanism (D10) is connected with the rotating mechanism (C10) along the adjustable position of the X axis and clamps the drill rod;

the X axis, the Y axis and the Z axis are mutually perpendicular;

the rotating mechanism (C10) is connected with the swinging mechanism (B10) in a position-adjustable mode along the Y axis through a first adjusting component (E10), and the first adjusting component (E10) comprises a first arm (E1), a cover plate (E2), a second arm (E3) and a third arm (E4);

one side of the cover plate (E2) is connected with the second arm (E3), the other side of the cover plate (E2) is connected with the first arm (E1) through a first correcting piece (E5) to adjust the size of a gap between the cover plate (E2) and the second arm (E3), so that the first arm (E1) and the second arm (E3) are rotatably connected around the Y axis; the first correcting piece (E5) sequentially penetrates through the cover plate (E2) and the gap and then stretches into the first arm (E1), the first correcting piece (E5) increases or decreases the depth of stretching into the first arm (E1), and the second arm (E3) rotates around the Y axis relative to the first arm (E1) to correct the inclination of the drill rod;

The first arm (E1) is slidably embedded with the third arm (E4) along the Y axis;

the third arm (E4) is connected with the swinging mechanism (B10); the second arm (E3) is connected to the rotation mechanism (C10).

2. The up-down drill rod equipment according to claim 1, wherein the lifting mechanism (a 10) comprises a first frame body (A1), a moving frame (A2) and a first driving piece (A3), the moving frame (A2) movably clamps the first frame body (A1), and the first driving piece (A3) is installed on the moving frame (A2) and is in transmission connection with the first frame body (A1) so as to drive the moving frame (A2) to move along the first frame body (A1); the first frame (A1) is mounted to the rig (100).

3. The up-down drill rod equipment according to claim 2, characterized in that both ends of the movable frame (A2) are correspondingly in rolling connection with a plurality of side surfaces at both ends of the first frame body (A1) through cam bearings (A4); the first driving member (A3) adopts a low-speed hydraulic motor.

4. The up-down drill rod apparatus according to claim 2, characterized in that the output end of the first driving member (A3) is in engagement with a rack (A5), the rack (A5) being mounted to the first frame body (A1) and being located inside the moving frame (A2).

5. The up-down drill rod apparatus according to claim 1, characterized in that the swinging mechanism (B10) comprises a second frame body (B1) and a second driving member (B2), the second driving member (B2) being mounted on the second frame body (B1); the second frame body (B1) is arranged on the lifting mechanism (A10);

the rotating mechanism (C10) comprises a third frame body (C1) and a third driving piece (C2), and the third driving piece (C2) is arranged on the third frame body (C1); the third frame body (C1) is connected with the second driving piece (B2) along the Y-axis in an adjustable position; the clamping mechanism (D10) is connected with the third driving piece (C2) in an adjustable position along the X axis.

6. The up-down drill rod arrangement according to claim 5, characterized in that the second drive member (B2) and the third drive member (C2) each employ a low-speed hydraulic swing cylinder.

7. The up-down drill rod arrangement according to claim 1, characterized in that the cover plate (E2) has a boss (E21) for forming the gap.

8. The up-down drill rod arrangement according to claim 1, characterized in that the clamping mechanism (D10) comprises a clamping frame (D1), a first jaw (D2), a second jaw (D3) and a fourth drive (D4);

The first clamping jaw (D2) and the second clamping jaw (D3) are connected in a meshed mode and are rotatably arranged on the clamping frame (D1); the fourth driving piece (D4) is arranged on one side of the first claw (D2) and the second claw (D3) so as to drive the first claw (D2) and the second claw (D3) to clamp the drill rod;

the clamping frame (D1) is connected with the rotating mechanism (C10) through a rotating flange (D9) with an adjustable position along the X axis.

9. The up-down drill rod equipment according to claim 8, characterized in that the rotating flange (D9) is provided with a first positioning member (D92), the rotating mechanism (C10) is provided with a second positioning member (C3) at an adjustable position, and the first positioning member (D92) and the second positioning member (C3) are in contact for mechanical positioning.