CN209924938U - Device for loading and unloading drill rods - Google Patents

Abstract

The utility model provides an upper and lower drilling rod equipment relates to geological drilling technical field, has solved the drilling rod and has hanged down with the coaxial technical problem of precision of unit head and well head. The equipment comprises a lifting mechanism, a swinging mechanism, a rotating mechanism and a clamping mechanism; the lifting mechanism is arranged on the drilling tower so as to incline at the same angle with the drilling tower, and can drive the drill rod to move along the axial direction of the drilling tower as a Z axis; the swing mechanism is connected with the lifting mechanism so as to enable the drill rod to rotate around the axial direction of the swing mechanism; the rotating mechanism is connected with the swinging mechanism along the Y-axis adjustable position, and the drill rod is enabled to rotate around the axial direction of the rotating mechanism; the clamping mechanism is connected with the rotating mechanism along the X-axis adjustable position and clamps the drill rod; the X-axis, the Y-axis and the Z-axis are mutually perpendicular.

Description

Device for loading and unloading drill rods

Technical Field

The utility model belongs to the technical field of the geological drilling technique and specifically relates to a go up lower drilling rod equipment is related to.

Background

The traditional operation of lifting and throwing the drill rod of the drill rod up and down by using a steel wire rope has high danger, and the labor intensity of workers is high and the efficiency is low. For the operation of a drill rod on and off a drill floor, the oil drilling has a mature technology, and the oil drilling is provided with a wide field, so that the drill rod is dragged to the drill floor from a catwalk along a gate ramp by using a winch, and a single drill is connected into a stand in a mouse hole by matching the winch with a hydraulic tong. However, geological drilling has no wide field and large transportation equipment, and no mature technology exists for equipment for going up and down a drill pipe, namely a system for going up and down a drill pipe and a drill floor.

In geological drilling, electromechanical equipment is mostly adopted as a driving mechanism of a drill rod mounting and dismounting device. However, the adoption of electromechanical devices has the following disadvantages that, on one hand, the structure is complex; on the other hand, electromechanical devices are not suitable for field operations without industrial electricity.

In the prior art, when the upper and lower drill rod equipment assists in assembling and disassembling the drill rod, the coaxiality of the power head and the drill rod is required to be very high, so that the drill rod can be assembled and disassembled on the power head, and the drill rod is driven to drill through power provided by the power head. The upper and lower drill rod equipment can only be used for drilling vertical wells generally, and even for drilling inclined wells, the drill rod is difficult to adjust by the upper and lower drill rod equipment to meet the drilling angle precision requirement when drilling inclined wells because the references of the upper and lower drill rod equipment and the power head are independent.

In the prior art, the upper and lower drill rod equipment has errors in the assembling, mounting and manufacturing processes, so that the precision of the drill rod aligned to the wellhead cannot meet the high-precision requirement of the drill rod coaxial with the wellhead.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an upper and lower drilling rod equipment to solve the drilling rod that exists among the prior art and the technical problem that the coaxial precision of unit head and well head is low.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a device for loading and unloading drill rods, which comprises a lifting mechanism, a swinging mechanism, a rotating mechanism and a clamping mechanism; the lifting mechanism is arranged on the drilling tower so as to incline at the same angle with the drilling tower, and can drive the drill rod to move along the axial direction of the drilling tower as a Z axis; the swing mechanism is connected with the lifting mechanism so as to enable the drill rod to rotate around the axial direction of the swing mechanism; the rotating mechanism is connected with the swinging mechanism in a position adjustable around the Y axis, 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 adjustable position and clamps the drill rod; the X-axis, the Y-axis and the Z-axis are mutually perpendicular.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, in the up-and-down drill rod equipment, the lifting mechanism comprises a first frame body, a moving frame and a first driving piece, the moving frame movably clamps the first frame body, and the first driving piece is mounted on the moving frame and is in transmission connection with the first frame body so as to drive the moving frame to move along the first frame body; the first frame body is mounted to the derrick.

Furthermore, in the up-and-down drill rod equipment, the two ends of the movable frame are correspondingly connected with a plurality of side surfaces at the two ends of the first frame body in a rolling manner through cam bearings; the first driving part adopts a low-speed hydraulic motor.

Further, the output end of the first driving piece is meshed with the rack, and the rack is installed on the first frame body and located on the inner side of the movable frame.

Further, in the drill rod mounting and dismounting device, the swing mechanism comprises a second frame body and a second driving piece, and the second driving piece is mounted 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 adjustable position; the clamping mechanism is connected with the third driving piece along the X-axis adjustable position.

Further, the second driving piece and the third driving piece of the upper and lower drill rod equipment adopt low-speed hydraulic swing cylinders.

Further, in the up-and-down drill rod equipment, the rotating mechanism is connected with the swinging mechanism through a first adjusting assembly along the Y-axis adjustable position, and the first adjusting assembly 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 a gap-adjustable manner, so that the first arm and the second arm are connected in a rotatable manner around the Y axis; the third arm is slidably embedded in the first arm along the Y axis; the third arm is connected with the swing mechanism; the second arm is connected with the rotating mechanism.

Further, the upper and lower drill rod equipment, the apron has the boss that is used for forming the clearance, the other side of apron is through first corrector connection the first arm size of adjusting the clearance.

Further, the clamping mechanism of the up-and-down drill rod equipment 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 meshed and connected and are rotatably arranged on the clamping frame; the fourth driving piece is arranged on one side of the first jaw and the second jaw to drive the first jaw and the second jaw 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 upper and lower drilling rod equipment, first setting element is installed to the rotatory flange, but rotary mechanism goes up the second setting element of installing of adjustable position, first setting element with the second setting element can conflict in order to carry out mechanical positioning.

The utility model has the advantages that: through the setting of elevating system, swing mechanism, rotary mechanism and fixture, elevating system installs in the rig to can make drilling rod and the same angle of rig slope, so that elevating system also be the Z axle adjustable angle in drilling rod place space, thereby can be applicable to vertical well and inclined shaft probing, 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 swing mechanism can drive the drill rod to swing around the Z shaft, the rotating mechanism can drive the drill rod to rotate around the X shaft, so that the drill rod can move along the Z shaft, swing around the Z shaft and rotate around the X shaft, the drill rod is placed above a wellhead, and the drill rod and the power head can be coaxial by adjusting the angle of the drill rod, so that the coaxiality of the drill rod and the wellhead is further guaranteed, 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 present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

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

FIG. 3 is a schematic sectional view taken along the line A-A in FIG. 2;

fig. 4 is a schematic view of the installation structure of the swing mechanism, the first adjusting assembly and the rotating mechanism of the present invention;

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

FIG. 6 is a schematic sectional view taken along the direction C-C in FIG. 4;

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

fig. 8 is a schematic structural view of the clamping mechanism of the present invention;

FIG. 9 is a schematic sectional view of the structure of FIG. 8 taken along the direction D-D;

FIG. 10 is a side view schematic of the structure of FIG. 8;

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

fig. 12 is a schematic view of the three-dimensional structure of the rotating mechanism and the clamping mechanism of the present invention;

fig. 13 is a schematic structural view of the first positioning member of the present invention;

fig. 14 is a schematic structural view of a second positioning member of 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 member, A4-a cam bearing, A5-a rack, A21-an ear plate, A22-a moving table, B1-a second frame body, B2-a second driving member, C2-a third frame body, C2-a third driving member, C2-a second positioning end face, C2-a mounting hole, C2-a positioning hole, E2-a first arm, E2-a cover plate, E2-a second arm, E2-a third arm, E2-a first correcting member, E2-a supporting shaft, E2-a second correcting member, E2-a boss, E2-a first connecting section and an E2-first adjusting section, e13-fastening hole, E31-second connecting section, E32-second adjusting section, E41-slide plate, E42-snap plate, D1-clamping holder, D2-first jaw, D3-second jaw, D4-fourth driving member, D5-first rotating shaft, D5-second rotating shaft, D5-first gear, D5-second gear, D5-rotating flange, D5-first adjusting member, D5-second adjusting member, D5-first adjusting hole, D5-second adjusting hole, D5-arm section, D5-connecting section, D5-gear cover, D5-driving section, D5-transmission section, D5-grasping section, D5-clamping holder, D5-slip block, D5-first chuck wall, D5-second chuck wall, D5-first chuck key, D5-first end cover, d53-a first bearing, D54-a second key, D55-a second bearing, D56-a second end cover, D91-a third adjusting hole, D92-a first positioning piece and D93-a first positioning end face.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The utility model provides an upper and lower drilling rod equipment, including elevating system A10, swing mechanism B10, rotary mechanism C10 and fixture D10. The lifting mechanism a10 is installed on the drilling tower 100 to incline at the same angle with the drilling tower 100, and can drive the drill rod to move along the axial direction of the drilling tower 100 as the Z-axis. The swing mechanism B10 is connected to the elevator mechanism a10 to rotate the drill rod about the axial direction of the swing mechanism B10. And the rotating mechanism C10 is connected with the swinging mechanism B10 in an adjustable position along the Y axis, and the drill rod is rotated around the axial direction of the rotating mechanism C10. The clamping mechanism D10 is connected with the rotating mechanism C10 in an adjustable position along the X axis and clamps the drill rod. The Z axis, the Y axis and the X axis are mutually perpendicular.

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

The rig 100 may be a mast type rig so that it can be tilted at an angle as desired. The rig 100 is of a construction known to those skilled in the art and will not be described in detail herein.

The lifting mechanism a10 is mounted on the drilling tower 100, and may be fixed by screws or bolts, or other fixed mounting methods, which are not limited herein. The rig 100 is positioned at the same angle as the well being drilled by the rig so that the lift a10 can be tilted at the same angle with the rig 100 and thus can be adapted for drilling of vertical and deviated wells. Improve the axiality of the axis of the drilling rod and the axis of the wellhead. In addition, the lifting mechanism a10 can also move the drill rod along the height extension direction of the drilling tower 100.

Here, the height direction of the drilling tower 100 may be set as the Z-axis. Taking the rig 100 as an example of a vertical position, the Z-axis direction is a vertical direction. The swing mechanism B10, the rotation mechanism C10, and the gripper mechanism D10 may be connected in series along an X-axis, which may be a horizontal direction perpendicular to the Z-axis, i.e., a front-rear direction. The Y-axis is a horizontal direction perpendicular to both the Z-axis and the X-axis, i.e., a direction perpendicular to the paper surface, and a left-right direction.

The axis of the swing mechanism B10 may be arranged along the Z-axis direction, so that the swing mechanism B10 can drive the drill rod to swing around the Z-axis. The axis of the rotating mechanism C10 may be arranged along the X-axis direction, so that the rotating 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 axial line of the drill rod is adjusted to be coaxial with the axial line of the wellhead in the extension directions of the Y shaft and the X shaft, and the coaxiality of the drill rod, the wellhead and the power head is improved. The rotating mechanism C10 can also be adjusted by swinging around the Y axis relative to the swinging mechanism B10, namely, the inclination of the drill rod is adjusted. Thereby under the condition that drilling rod length direction size is a lot of than radial dimension, avoid the drilling rod slope to it is coaxial with the axis of well head to adjust the axis of drilling rod in the circumferential direction who encircles the Y axle, improves the axiality of drilling rod and well head.

The working process of the utility model is that the axis of the power head and the axis of the well head 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 moves the drill rod up the Z-axis to allow the drill rod to reach below the power head in the Z-axis direction after swinging and rotating. The swing 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 below the power head. If the axis of the drill rod deviates from the axis of the power head, the coaxial adjustment of the axes of the drill rod and the power head is needed. The coaxial adjusting process comprises three steps of adjusting according to requirements in an unordered mode, wherein the step one is respectively, and the position of the clamping mechanism D10 relative to the rotating mechanism C10 can be adjusted along the extending direction of the X axis; secondly, 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 to adjust the inclination of the drill rod. And after the adjustment is completed, the drill rod is arranged on the power head. Then drilling operation is carried out again under the driving of the power head. And after the drilling is finished, the drill rod is recovered to the drill rod box. When the same angle well head of probing, can only need to carry out once coaxial regulation to the drilling rod when installing in the unit head for the first time can to make drilling rod and unit head coaxial. The connection of the power head and the drill rod and the drilling of the driving drill rod are the prior art, and are not limited and are not described herein again.

The utility model discloses an implement, through elevating system A10, swing mechanism B10, rotary mechanism C10 and fixture D10's setting, elevating system A10 installs in rig 100 to can make the drilling rod and the same angle of rig 100 slope, so that elevating system A10 is also the adjustable angle of Z axle in drilling rod place space, thereby can be applicable to vertical well and inclined shaft probing, improve the axiality of drilling rod and well head and unit head. Rotary mechanism C10 can be adjusted in position along the Y axis relative to swing mechanism B10, and clamping mechanism D10 can be adjusted in position along the X axis relative to rotary mechanism C10; in addition, the swing 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 a wellhead, and the drill rod and a power head can be coaxial by adjusting the angle of the drill rod, so that the coaxiality of the drill rod and the power head is further guaranteed, the coaxiality is improved, the structure is compact, and the installation space is saved.

As an alternative embodiment, the lifting mechanism a10 includes a first frame a1, a moving frame a2, and a first driving member A3. The movable frame A2 can movably clamp the first frame body A1, and the first driving member A3 is mounted on the movable frame A2 and is in transmission connection with the first frame body A1 to drive the movable frame A2 to move along the first frame body A1. The first frame body a1 is mounted to the rig 100.

Specifically, as shown in fig. 2 and fig. 3, fig. 2 is a schematic structural diagram of the lifting mechanism of the present invention. Fig. 3 is a schematic sectional view of the structure in the direction of a-a in fig. 2.

The first frame body a1 may be fixedly mounted to the rig 100 by means of screws or bolts. The length of the first frame body a1 is the same as the height of the drilling tower 100, and is Z-axis direction. The first frame a1 may be a truss structure, as known to those skilled in the art. The device can further comprise a plurality of proximity switches and a controller, wherein the proximity switches and the first driving piece 3 are respectively electrically connected with the controller. A plurality of proximity switches are installed on first support body 1 and set up along Z axle direction interval. The controller receives a signal from the proximity switch to control the first driving member 3 to be turned on or off. Therefore, the proximity switch can meet the limit requirements of limit positions of drill rods with different lengths and the requirements of simultaneous implementation of swinging and rotating actions of the drill rods.

The moving frame a2 may have a U-shaped structure, and both ends of the moving frame a2 may clamp the corresponding left and right ends of the first frame a1, that is, the Y-axis direction. The first driving member A3 may be fixedly mounted on the movable frame a2 by screws or bolts, and is in transmission connection with the first frame body a1, so as to drive the movable frame a2 to move along the Z axis of the first frame body a1, and further move the drill rod along the Z axis.

Further, both ends of the moving frame a2 are respectively in rolling connection with a plurality of sides at both ends of the first frame body a1 through cam bearings a 4. The first drive member a3 employs a low speed hydraulic motor.

Specifically, as shown in fig. 2 and 3, the moving rack a2 includes two ear plates a21 and a moving platform a22, and the two ear plates a21 are respectively located at the left and right sides of the moving platform a22 and fixedly mounted with the moving platform a22, and may be fixedly mounted by screws or bolts, which is not limited herein. The first driving member A3 is fixedly arranged on the moving table A22, and the output end of the first driving member A3 movably penetrates through the moving table 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 lug plate a 21. The cam bearings a4 may be provided in three groups on each ear plate a21, and each group is respectively corresponding to the front, left and right of the guide rail formed by the side end of the first frame a1, that is, respectively corresponding to the three side surfaces of the first frame a 1. The amount of eccentricity of the cam bearing a4 can be adjusted to optimize the contact clearance with the rail to facilitate rolling of the cam bearing a4 along the 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 also be connected with a hydraulic lock, so that a double self-locking function is realized, and the dual self-locking device is safer and more reliable.

Further, the output end of the first driving piece A3 is meshed with the rack A5. The rack A5 is mounted on the first frame A1 and is located inside the moving frame A2.

Specifically, as shown in fig. 2 and 3, the rack a5 may be fixedly mounted on the first frame body a1 by a screw or a bolt, and the length extending direction of the rack a5 is set in the same direction as the first frame body 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 body a 1.

As an alternative embodiment, the swing mechanism B10 includes a second carrier B1 and a second driver B2. The second driving member B2 is mounted on the second frame body B1. The second frame body B1 is installed on the lifting mechanism A10. The rotary mechanism C10 includes a third carrier C1 and a third driver C2. The third driving member C2 is mounted on the third frame C1. The third frame C1 is connected with a second driving member B2 along the Y-axis adjustable position. The clamping mechanism D10 is connected with a third driving element C2 in an adjustable position along the X axis.

Specifically, as shown in fig. 1 and fig. 4, fig. 4 is a schematic view of the installation structure of the swing mechanism, the first adjusting assembly and the rotating mechanism of the present invention.

The second rack B1 can be fixed on the lifting mechanism a10, specifically on the moving table a22 of the moving rack a2 of the lifting mechanism a10, by screws or bolts. The second driving member B2 may be fixedly mounted on the second frame body B1 by means of screws or bolts. The third frame C1 can be fixedly arranged with a third driving element C2 through screws or bolts, and the third frame C1 is connected with the output end of the second driving element B2 along the Y-axis adjustable position; the output end of the third driving member C2 is connected with the clamping mechanism D10 along the X-axis adjustable position. The structures of the second frame body B1 and the third frame body C1 may be arranged as required, and are not limited herein.

Further, the second drive B2 and the third drive C2 both employ low speed hydraulic swing cylinders.

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 together around the Z axis to the wellhead to realize the feeding of the drill rod or swing from the wellhead to the side of the drilling tower 100 to realize the recovery of the drill rod. Mechanical positioning, which is readily known to those skilled in the art, may be provided in the second driver B2 to ensure the accuracy of the repeated positioning of the second driver B2. And the second driving piece B2 can be provided with a proximity switch, and the arrangement of the proximity switch can realize stepless speed reduction when the swing approaches the termination position, thereby ensuring the stability of the drill rod when the drill rod is rotated to the position.

As an alternative embodiment, rotary mechanism C10 is connected to swing mechanism B10 via a first adjustment assembly E10 for adjustable position along the Y-axis. The first adjustment assembly E10 includes a first arm E1, a cover plate E2, a second arm E3, and a third arm E4. The cover plate E2 is connected with the second arm E3 on one side and the first arm E1 on the other side in a gap-adjustable manner. So that the first arm E1 and the second arm E3 are rotatably connected about the Y axis. The first arm E1 is slidably fitted 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 a rotation mechanism C10.

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

One side of the cover plate E2 and the second arm E3 can be fixedly installed through screws or bolts, and one side of the cover plate E2 can also be fixedly connected with the second arm E3, such as forming an integrated structure. The connection of one side of the cover plate E2 to the second arm E3 is not limited thereto.

The other side of the cover plate E2 is connected with the adjustable gap of the first arm E1, and the other side of the cover plate E2 is connected with the adjustable gap of the first arm E1 as a correcting action. Because one side of the cover plate E2 and the second arm E3 are fixedly installed, the other side of the cover plate E2 can drive the second arm E3 to rotate when adjusting the gap, namely the first arm E1 and the second arm E3 are rotationally connected when correcting, the second arm E3 can rotate around the Y axis relative to the first arm E1, and therefore the second arm E3 drives the drill rod and the second arm E3 to swing together with the rotating shaft to correct the inclination of the drill rod in the rotating process, and the coaxiality of the drill rod, the power head and the wellhead is improved.

The first adjustment assembly E10 is installed and calibrated such that the second arm E3 is rotatably connected to the first arm E1 about the Y-axis direction, one side of the cover plate E2 is fixedly installed on the second arm E3, the other side of the cover plate E2 is connected to the first arm E1 with a gap, and the gap between the other side of the cover plate E2 and the first arm E1 is adjusted. During the adjustment of the gap, the second arm E3 can rotate around the Y axis relative to the first arm E1, so that the second arm E3 swings the drill rod around the Y axis to correct the inclination of the drill rod. After the correction is completed, the first arm E1 and the second arm E3 can be fixedly installed by screws or bolts.

One side of the cover plate E2 is fixedly installed with the second arm E3, and the other side is connected with the first arm E1 in a gap-adjustable mode through the arrangement of the first arm E1, the cover plate E2 and the second arm E3. Therefore, during correction, the first arm E1 and the second arm E3 can be connected in a rotating mode, the second arm E3 rotates 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, and then the second arm E3 can drive the drill rod to swing around the Y axis, so that correction of the inclination angle of the drill rod is achieved.

One side of the third arm E4 is connected with the output end of a 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. Second arm E3 is connected to third bay C1 of rotary mechanism C10, thereby enabling indirect connection of rotary mechanism C10 to 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 a first corrector E5 to adjust the size of the gap.

Specifically, as shown in fig. 4 to 7, a boss E21 is formed on the inner side wall of the cover plate E2. The boss E21 may be formed on one side of the cover plate E2 and fixedly mounted to the second arm E3 by a screw or bolt passing through the boss E21. Thereby making the mounting of the cover plate E2 and the second arm E3 more stable. The arrangement of the boss E21 can be realized by arranging the cover plate E2 and the second arm E3 without a gap. Of course, the boss E21 may be formed at the middle or other position of the inner sidewall of the cover plate E2 according to the design requirement of the structure, as long as an adjustable gap is formed between the cover plate 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 needing to be corrected.

The first corrector E5 is threadedly coupled to the first arm E1. The first correcting piece E5 sequentially penetrates through the cover plate E2 and the gap and then extends 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. When the clearance is adjusted, the first correcting piece E5 can rotate clockwise, so that the clearance is reduced, the first correcting piece E5 increases the depth 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 reverse calibration is required again, the first calibration piece E5 can be rotated counterclockwise so that the clearance increases, the first calibration piece E5 decreases the depth of extension into the first arm E1, and the second arm E3 rotates about the Y-axis relative to the first arm E1 to calibrate the inclination of the drill rod.

The first correcting piece E5 can adopt a fine-tooth screw or a bolt, so that the micro adjustment of the gap adjustment can be realized, and the micro correction of the inclination angle of the drill rod within a certain range can be realized. Such as a correction of 0.5 degrees or 1 deg. tilt angle.

The first arm E1 includes a first connecting section E11 and a first regulating section E12 connected to each other. The second arm E3 includes a second connecting segment E31 and a second regulating segment E32 connected to each other. The second actuating section E32 extends rotatably into the first actuating section E12 and is fixedly attached 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 fitted with the third arm E4 along the Y axis. The second connecting section 31 is connected with the third frame body C1 of the rotating mechanism C10.

The first connecting section E11 and the first adjusting section E12 may be of an integral structure, and similarly, the second connecting section E31 and the second adjusting section E32 may be of an integral structure. The second adjustment section E32 extends rotatably into the first adjustment section E12. After the adjustment, the first adjusting section E12 can be threaded through a screw or a bolt and then be connected with the second adjusting section E32 to be fixedly installed.

The cover plates E2 may be two and respectively cover the upper and lower sides of the second adjusting section E32 and the first adjusting section E12, thereby increasing the stability of the correction. One side of the cover plate E2 is connected to the first adjusting section E12 to be fixedly installed. The other side of the cover plate E2 is connected with the adjustable gap of the second adjusting section E32. The second adjusting section E32 may be screw-coupled to the first correcting member E5 through the other side of the cover plate E2.

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 so that the second arm E3 can rotate relative to the first arm E1 about the axis of the support shaft E6, that is, the Y-axis. The two ends of the supporting shaft E6 can be respectively sleeved with shaft circlips to prevent the supporting shaft E6 from separating from the first arm E1 and the second arm E3. The support shaft E6 may penetrate through the first and second adjusting segments 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 located on the axis of the supporting shaft E6.

Since the fixed installation of the first arm E1 and the second arm E3 needs to be performed after the calibration, and during the calibration, the first arm E1 can rotate relative to the second arm E3, so that in order to fixedly install the first arm E1 and the second arm E3, the fixing hole E13 needs to be set to be arc-shaped, which facilitates the installation of screws or bolts. The center of the arc is located on the axis of the support shaft E6 so that the arc of the fixing hole E13 can be matched with the arc of the second arm E3 rotating along the axis of the support shaft E6.

The fixing hole E13 is provided in plural. A plurality of fixing holes E13 are arranged at intervals around the same circle center.

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

A second correction E7 is also included. The first arm E1 is slidably fitted with the third arm E4. The second corrector E7 is connected to the first arm E1 through the third arm E4 so that the first arm E1 is slidably adjustable along the third arm E4. One side of the second correcting piece E7 is clamped with a third arm E4. The other side of the second correcting member E7 is screw-coupled to the first arm E1.

The third arm E4 includes a slide plate E41 and a catch plate E42. A card board E42 is connected to one side of the slide board E41. The sliding plate E41 can be connected with the clamping plate E42 through screws or bolts, and can also form an integrated structure with the clamping plate E42. The sliding plate E41 is provided with a sliding groove for slidably embedding the first arm E1. The opening direction of the sliding groove can be set according to the sliding direction of the first arm E1, such as the opening direction along the Y-axis horizontal direction. Since the first arm E1 and the second arm E3 are fixedly installed after correction, the position of the drill rod in the Y-axis extending direction 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 arranged to fix the adjusted position of the drill rod. A catch plate E42 may be located at one side port of the chute and used to pass a second corrector E7 into connection with the first arm E1 in the chute. The clamping plate E42 is used for clamping the penetrating side of the second correcting piece E7 in the clamping plate E42, so that the first arm E1 is pushed to slide in the sliding groove through the rotation of the second correcting piece E7 to adjust the position of the drill rod.

As an alternative embodiment, the clamping mechanism D10 includes a clamping bracket D1, a first jaw D2, a second jaw D3, and a fourth driver D4. The first jaw D2 and the second jaw D3 are engaged and rotatably mounted on the clamping bracket D1. A fourth driver D4 is mounted to one side of the first and second jaws D2, D3 to drive the first and second jaws D2, D3 to grip the drill rod. The clamping frame D1 is connected with the rotating mechanism C10 through a rotating flange D9 which can be adjusted in position along the X axis.

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

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

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

A gear cover D17 may be further provided outside the first gear D7 and the second gear D8 to prevent dust and collision of external objects, thereby improving stability of the meshing transmission of the first gear D7 and the second gear D8. The gear cover D17 can be fixedly mounted on the wrist-arm section D15 of the clamping frame D1 by screws or bolts.

The first rotating shaft D5 and the second rotating shaft D6 are respectively rotatably inserted into the wrist arm section D15. First jack catch D2 and first gear D7 are fixed the cover respectively and are established first pivot D5 to first jack catch D2 can drive first pivot D5 and rotate, and then drive first gear D7 and rotate. Second pivot D6 is established to fixed the cover respectively of second jack catch D3 and second gear D8, and first gear D7 and second gear D8 meshing are connected to first gear D7 rotates and drives second gear D8 and rotate, and then drives second pivot D6 and rotate, and second pivot D6 drives second jack catch D3 and rotates.

The fourth driving member D4 may be a hydraulic cylinder, an output end of the hydraulic cylinder makes a linear reciprocating motion and may be rotatably connected to the upper side ends of the first jaw D2 and the second jaw D3, and the rotatable connection may be implemented by a manner in the prior art, such as a bearing, without limitation. The lower ends of the first jaw D2 and the second jaw D3 are the gripping 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 extends, the first jaw 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 rotating the second rotating shaft D6 and the second jaw D3 clockwise. And then the upper side ends of the first clamping jaw D2 and the second clamping jaw D3 are mutually separated, and the lower side ends are mutually close to each other, so that the grabbing of the drill rod is realized. On the contrary, when the output end of the fourth driving piece D4 contracts, 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 pulled to be away from each other, so that the release of the drill rod is realized.

Through the arrangement of the first jaw D2, the second 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 extends and contracts to drive the first jaw D2 and the second jaw D3 to rotate along the first rotating shaft D4 and the second rotating shaft D6 counterclockwise and clockwise respectively, and a power source is provided for the rotation of the first jaw D2 and the second jaw D3; the first gear D7 and the second gear D8 are engaged, so that the rotation of the first gear D7 rotates the second gear D8, and further transmits the rotation to the second jaw D3. Realize the synchronous rotation of first jack catch D2 and second jack catch D3 to can guarantee that the axis that the side of snatching of first jack catch D2 and second jack catch D3 encloses the axis that establishes the space of snatching that forms and the axis of drilling rod remain parallel throughout, and then after snatching the drilling rod, avoid the axis of drilling rod to take place to incline, improve the precision of snatching the drilling rod.

The first jaw D2 includes a driving section D21, a transferring section D22 and a catching section D23 connected in sequence from side to side. The driving segment D21 is rotatably connected with the output end of the fourth driving member D4. The transmission section D22 is fixedly sleeved on the first rotating shaft D5 and located at one side of the first gear D7. The gripping section D23 opens and closes to release or grip the drill pipe. 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 pawls D3 each have the structure of the first pawl D2 described below. In addition, the first latch D2 may be located at the front side of the second latch D3, and the upper side end of the second latch D3 rotatably connected to the output end of the fourth driver D4 may be configured to be an avoiding structure according to the structure of the output end of the fourth driver D4, for example, an arc transition design is performed 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, can be of an integrated structure as a whole, and can also be of a split structure. Can be from last to connecting gradually down, also can be according to other directions according to actual construction needs and connect gradually.

The driving segment D21 is used to be rotatably connected with the output end of the fourth driving member D4 so as to rotate the first claw D2 along the first rotating shaft D5. The transmission section D22 is used for fixed cover to establish first pivot D5 to transmission section D22 can drive first pivot D5 and rotate, and then first pivot D5 drives first gear D7 and rotates, realizes will rotating from transmission section D22 transmission to first gear D7. The first gear D7 may be of an integral structure with the first rotating shaft D5, or of a split structure, and is not limited herein. The gripping section D23 and the driving section D21 are opposite side ends of the transferring section D22, so that the gripping section D23 rotates backward when the driving section D21 rotates forward. Through the setting of drive section D21, transmission section D22 and grabbing section D23, can make first jack catch D2 realize transmitting the rotation to second jack catch D3 through rotating along first pivot D5 to rotate with second jack catch D3 synchronous, and then realize snatching the precision of drilling rod.

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

The gripping slip D24 may be connected to the gripping section D23 by screws or bolts to be fixedly mounted on the gripping section D23. To facilitate axial positioning of the drill pipe, the gripping slips D24 may be arranged in a V-shaped configuration and in two. The inner wall of the gripping section D23 may be adapted to the outer wall of the gripping slips D24. Two gripping slips D24 are mounted on the first jaw D2 and the second jaw D3, respectively. Two open opposed gripping slips D24 may be enclosed to form a gripping space. The slip segments D25 may be provided in an elongated configuration and fixedly attached to the V-shaped side walls of the gripping slips D24 by screws or bolts. The surface of the slip segment D25 facing the drill rod may be provided with a slip resistant texture to provide sufficient reaction torque when passing over the drill rod on the power head after gripping the drill rod.

The first jaw D2 includes a first chuck wall D26 and a second chuck wall D27 that are symmetrically disposed. The first clamping wall D26 and the second clamping wall D27 are both fixedly inserted through the first rotating shaft D5 and located at one side of the first gear D7, and are rotatably connected with the output end of the fourth driving member D4 at the same side end.

The first jaw D2 may be divided into a first chuck wall D26 and a second chuck wall D27 symmetrically disposed from left to right, wherein the first chuck wall D26 and the second chuck wall D27 may respectively have a driving section D21, a transmission section D22 and a grabbing section D23 sequentially connected from top to bottom. The first gear D7 may be located at one side of the second chuck wall D27. Through the setting of first card wall D26 and second card wall D27, can practice thrift the preparation material, convenient loading and unloading simultaneously.

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

According to the requirement of the installation position, the first jaw D2 and the second jaw D3 are combined to form an X-shaped structure, and the first jaw D2 and the second jaw D3 rotate synchronously through the meshed connection of the first gear D7 and the second gear D8.

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

The first rotating 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 sequence from right to left. Wherein, first key D51 is connected with first gear D7 to first gear D7 overlaps establishes first pivot D5 back, and the rotation of first pivot D5 can drive first gear D7 and rotate. The second key D54 is connected with first jack catch D2 to first jack catch D2 is established first pivot D5 back in the cover, and first jack catch D2 can drive first pivot D5 and rotate. The first end cap D52 and the first bearing D53 and the second bearing D55 and the second end cap D56 are respectively arranged in right-left symmetry with respect to the second key D54 or the first jaw D2. The first and second end caps D52 and D56 may be symmetrically mounted on the outer sidewall of the clamping bracket D1 by screws or bolts, respectively, for restraining the first rotating shaft D5 to the clamping bracket D1. The first bearing D53 and the second bearing D55 may be symmetrically fixed through the inner wall of the clamping frame D1, respectively, for enabling the first rotating shaft D5 to rotate relative to the clamping frame D1, thereby enabling the rotation to be transmitted to the first gear D7 to enable the first jaw D2 and the second jaw D3 to rotate synchronously.

The clamping device further comprises a first adjusting piece D11 and a second adjusting piece D12 which are used for adjusting the axial distance between the end faces of the rotating flange D9 and the clamping frame D1, namely the distance in the extending direction of the X axis. The first adjusting piece D11 is inserted into the holding frame D1 and stops against the rotating flange D9 to increase the axial distance of the end face. The second adjuster D12 is inserted through the rotating flange D9 and the clamping bracket D1 to reduce the end face axial spacing. The clamping frame D1 is sleeved with a rotating flange D9. The rotating flange D9 is connected to the output end of the third driving member C2 of the rotating mechanism C10, and the third driving member C2 drives the rotating flange D9 to rotate. The connecting section D16 of the clamping frame D1 is used for sleeving the rotating flange D9. After the terminal surface axial spacing with swivel flange D9 and linkage segment D16 has been adjusted, can carry out fixed mounting with swivel flange D9 and linkage segment D16 through screw or bolt, thereby can make swivel flange D9's rotation drive linkage segment D16, it is rotatory also to drive holding frame D1, thereby can drive the drilling rod rotation of first clamping jaw D2 and the centre gripping of second clamping jaw D3, make the drilling rod can place under the unit head.

The clamping frame D1 is sleeved with the rotating flange D9, and the front end faces of the clamping frame D1 and the rotating flange D9 can be used as adjusting end faces. The first and second adjusters D11 and D12 may be installed on the clamping bracket D1 and the rotating flange D9, respectively, and increase the axial distance between the front end surfaces of the clamping bracket D1 and the rotating flange D9 by the first adjuster D11; the axial distance between the clamping holder D1 and the front face of the rotating flange D9 is reduced by the second adjuster D12. Thus, when the rotary flange D9 is fixedly installed, the clamping bracket D1 may be moved back and forth in its axial direction by the first and second adjusting pieces D11 and D12 to increase or decrease the distance between the front end surfaces of the clamping bracket D1 and the rotary flange D9. And the axis of the drill rod clamped by the first jaw D2 and the second jaw D3 can reach the axis position of the power head in the X-axis direction synchronously, so that the position of the axis position of the drill rod in the front-back direction of the clamping frame D1 can be adjusted.

The clamping frame D1 is provided with a first adjusting hole D13 and a second adjusting hole D14. The rotating 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 is stopped against the rotating flange D9. The second adjusting piece D12 passes through the first adjusting hole D13 and then is in threaded connection with the third adjusting hole D91. The rotating flange D9 is axially keyed to the holder D1.

In order to improve the adjustment precision of the axial distance between the end faces of the clamping frame D1 and the rotating 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 through fine threads. The first and second adjusting members D11 and D12 may be screws or bolts having fine threads. First regulation hole D13 can adopt the unthreaded hole, and the downthehole wall that also is adopted smooth inner wall, first regulation hole D13 can with second regulating part D12 clearance fit to make things convenient for smooth the passing of second regulating part D12 and when rotation regulation accessible rotation in first regulation hole D13.

The first adjusting holes D13 and the second adjusting holes D14 may be disposed in a plurality of spaced apart positions and opened on the holding frame D1, and may be opened symmetrically up and down, as an example, below, opened on the upper portion of the holding frame D1. The number of the first adjusting holes D13 may be three or more, and the number of the second adjusting holes D14 may be two or more, wherein the first adjusting holes D13 and the second adjusting holes D14 are spaced apart from each other, thereby improving the uniformity of adjustment. The third adjusting holes D91 may be formed in the rotating flange D9, and may be formed vertically symmetrically, and hereinafter, for example, may be formed in an upper portion of the rotating flange D9. The third adjusting holes D91 are provided in three positions corresponding to the first adjusting holes D13.

When the clamping device is used, the rear end of the first adjusting piece D11 is in threaded connection with the second adjusting hole D14, penetrates through the second adjusting hole D14, extends out of the rear end face of the clamping frame D1 and is stopped against the front end face of the rotating flange D9. The rotating 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 is abutted against the front end face of the rotating 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 rotating flange D9 is increased. After the adjustment is completed, the second adjusting piece D12 penetrates through the first adjusting hole D13 and then 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 to fix the axial distance of the end faces. The holder D1 and the rotating flange D9 were then fixedly mounted.

If the axial distance between 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, the second adjusting piece D12 is rotated, so that the second adjusting piece D12 can push the clamping frame D1 to move backwards, and the axial distance of the end faces is reduced until the axial distance of the end faces is required. The rear end of the first adjusting member D11 is stopped against the rotating flange D9. After the position is adjusted, the clamping frame D1 and the rotating flange D9 are fixedly installed.

In the process that the clamping frame D1 moves back and forth to adjust the axial distance of the end face, 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 clamping frame D1, which is sleeved with the rotating flange D9. The rotary flange D9 is provided with a key matched with the key slot at the position corresponding to the key slot, so that the rotary flange D9 is connected with the clamping frame D1 in an axial key mode, and the guiding effect in the front-back movement process of the clamping frame D1 is achieved.

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

Specifically, as shown in fig. 12 to 14, fig. 12 is a schematic perspective view of the assembly of the rotating mechanism and the clamping mechanism according to the present invention. Fig. 13 is a schematic structural view of the first positioning member of the present invention. Fig. 14 is a schematic structural view of a second positioning member of the present invention.

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

The first positioning member D92 can be fixedly mounted on the rotating flange D9 by screws or bolts, and of course, the first positioning member D92 can also be integrated with the rotating flange D9. So that the first positioning piece D92 can be rotated with the rotation of the rotating flange D9.

A plurality of positioning holes C11 are formed in the third frame body C1, and the positioning hole C11 is used for the second positioning element C3 to be mounted on the third frame body C1, so that the second positioning element C3 and the third frame body C1 are fixedly arranged. The positioning hole C11 may be a through hole structure or a blind hole structure, as long as the second positioning element C3 can be installed, which is not limited herein. The second positioning member C3 can be installed on the third frame C1 through the positioning hole C11, and since the positioning hole C11 is provided in plurality, the second positioning member C3 can be installed in a position-changing manner between the positioning holes C11 to change the distance from the first positioning member D92, so that the position-adjustable installation of the second positioning member C3 on the third frame C1 is realized.

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 surface D93 and the second positioning end surface C31 are respectively corresponding to the adjacent and abuttable end surfaces of the first positioning piece D92 and the second positioning piece C3. So that the rotating flange D9 can be rotated by an angle between the first positioning end surface D93 and the second positioning end surface C31. The first positioning end surface D93 and the second positioning end surface C31 may completely interfere with each other or partially interfere with each other, which is not limited herein.

Through the arrangement of the rotating flange D9, the first positioning member D92, the second positioning member C3 and the third frame body C1, the first positioning member D92 is mounted on the rotating flange D9, so that the first positioning member D92 rotates along with the rotating flange D9. The second positioning member C3 is adjustably mounted on the third bay C1 through the positioning hole C11, so that the first rotation angle between the second positioning member C3 and the first positioning member D92 is adjustable. The required first rotating angle is obtained according to the drilling angle difference of the drill rod, the position of the second positioning piece C3 on the third frame body C1 is adjusted, 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 set rotating angle is 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 rotating angle of the first positioning piece D92 is rotated to abut against the second positioning piece C3 to achieve mechanical positioning. The installation position of the second positioning element C3 can be adjusted according to the drilling angle of the drill rod, and the rotatable range of the first positioning element D92, namely the first rotation angle, is changed. The coaxiality precision of the drill rod and the power head is improved.

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

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

In order to make the first positioning element D92 collide with the second positioning element C3 after rotating along with the rotating flange D9, the plane of the first positioning element D92 is perpendicular to the rotating axis, and the distance between the first positioning element D92 and the rotating axis is equal to the distance between the second positioning element C3 and the rotating 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 can partially interfere with each other.

The second positioning piece C3 is provided with a mounting hole C32 correspondingly communicated with the positioning hole C11. At least one mounting hole C32 is provided, and the mounting hole C32 is in fit communication with the plurality of positioning holes C11. The mounting hole C32 and the positioning hole C11 are arranged in an equal radian corresponding to each other.

The second positioning piece C3 can be fixedly mounted on the third frame body C1 by threading a screw or a bolt through the mounting hole C32 and then being in threaded connection with the positioning hole C11. The mounting holes C32 may be one or more holes formed on the second positioning member C3 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 two. The installation position of the second positioning piece C3 is adjustable by connecting the installation hole C32 with different positioning holes C11, so that stepless adjustment of the first rotation angle is realized, and the installation hole C32 is arranged to be arranged at the same radian as the two positioning holes C11.

The positioning holes C11 are arranged at equal intervals in an arc.

The positioning holes C11 can be arranged at equal intervals in arc, so that the second positioning element C3 can select the position to be installed among the positioning holes C11 according to the requirement. The arc interval may be set to 10 °, although other arc values may be used. And, mounting hole C32 can set up to the arc hole that has certain installation radian, and the installation radian of mounting hole C32 can form to be with the same radian of interval radian. In an embodiment, the installation radian of the installation hole C32 can be set to 10 °, so that when the position of the second positioning element C3 is adjusted, stepless adjustment of the installation hole C32 within the installation radian of 0 ° to 10 ° can be realized by moving one positioning hole C11, and the number of the positioning holes C11 can be designed according to the range of the required adjustment angle.

The first positioning member D92 and the second positioning member C3 are both provided in an arc-segment structure.

The first positioning member D92 can rotate with the rotating flange D9, and the second positioning member C3 can be adjusted in position on the third frame C1 to achieve adjustable mechanical positioning of the second positioning member C3 and the rotating first positioning member D92. Therefore, the adjustable position of the second positioning element C3 is the distribution arc of the positioning holes C11 disposed on the third frame C1. The second positioning member C3 may be configured as an arc segment structure to facilitate the adjustment of the second positioning member C3 in the direction of the arc. Likewise, the first positioning member D92 may be configured as an arcuate segment structure.

The radian range of the first positioning piece D92 rotated to be abutted against the second positioning piece C3 is 90-135 degrees.

When a vertical well is drilled, the first positioning piece D92 needs to rotate to the radian which is opposite to the second positioning piece C3 and is 90 degrees; when drilling an inclined well, the maximum radian required for the first positioning element D92 to rotate until the second positioning element C3 abuts against each other 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, preferably, the "inward" direction is a direction toward the center of the accommodating space, and the "outward" direction is a direction away from the center of the accommodating space.

In the description of the present invention, it is to 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", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

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

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer 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, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only for the specific implementation of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can change, modify, replace and modify the above embodiments within the technical scope of the present invention, and all such changes, modifications, substitutions and variations are intended to be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The device for loading and unloading the drill rods 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 a drilling tower (100) to incline at the same angle with the drilling tower (100) and can drive the drill rod to move along the axial direction of the drilling tower (100) as a Z axis;

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

the rotating mechanism (C10) is connected with the swinging mechanism (B10) along the Y-axis adjustable position, and the drill rod is rotated around the axial direction of the rotating mechanism (C10);

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

the X-axis, the Y-axis and the Z-axis are mutually perpendicular.

2. The apparatus for loading and unloading drill rods according to claim 1, wherein the lifting mechanism (a10) comprises a first frame body (a1), a moving frame (a2) and a first driving member (A3), the moving frame (a2) movably clamps the first frame body (a1), and the first driving member (A3) is mounted on the moving frame (a2) and is in transmission connection with the first frame body (a1) to drive the moving frame (a2) to move along the first frame body (a 1); the first frame body (A1) is mounted to the drilling tower (100).

3. The up-and-down drill rod device as claimed in claim 2, wherein the two ends of the moving frame (a2) are in rolling connection with a plurality of sides at the two ends of the first frame body (a1) through cam bearings (a 4); the first driving member (A3) adopts a low-speed hydraulic motor.

4. The up-and-down rod apparatus according to claim 2, wherein the output end of the first driving member (A3) is engaged with a rack gear (a5), and the rack gear (a5) is installed on the first rack body (a1) and is located inside the movable rack body (a 2).

5. The apparatus for running drill rods up and down according to claim 1, wherein the swing mechanism (B10) comprises a second bay (B1) and a second drive (B2), the second drive (B2) being mounted on the second bay (B1); the second frame body (B1) is arranged on the lifting mechanism (A10);

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

6. The kelly drop apparatus of claim 5, wherein the second drive (B2) and the third drive (C2) both employ low speed hydraulic swing cylinders.

7. The apparatus according to claim 1, wherein the rotation mechanism (C10) is connected to the swing mechanism (B10) by a first adjustment assembly (E10) adjustable in position along the Y-axis, the first adjustment assembly (E10) comprising a first arm (E1), a cover plate (E2), a second arm (E3) and a third arm (E4);

the cover plate (E2) is connected with the second arm (E3) on one side and the first arm (E1) on the other side in a gap-adjustable manner, so that the first arm (E1) and the second arm (E3) are rotatably connected around the Y axis;

the first arm (E1) is slidably fitted 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 with the rotation mechanism (C10).

8. The upper and lower drill pipe apparatus as claimed in claim 7, wherein the cover plate (E2) has a boss (E21) for forming the gap, and the other side of the cover plate (E2) is connected to the first arm (E1) through a first corrector (E5) to adjust the size of the gap.

9. Up and down pipe apparatus according to claim 1, wherein the gripping mechanism (D10) comprises a gripping carriage (D1), a first jaw (D2), a second jaw (D3) and a fourth driver (D4);

the first claw (D2) and the second claw (D3) are engaged and connected and are rotatably arranged on the clamping frame (D1); the fourth driving piece (D4) is installed at one side of the first jaw (D2) and the second jaw (D3) to drive the first jaw (D2) and the second jaw (D3) to clamp the drill rod;

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

10. An apparatus for running pipe on and off a drill pipe as claimed in claim 9, wherein the rotating flange (D9) is provided with a first positioning member (D92), the rotating mechanism (C10) is provided with a second positioning member (C3) in an adjustable position, and the first positioning member (D92) and the second positioning member (C3) can be abutted for mechanical positioning.

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