CN213450290U - Self-balancing continuous screwing and unscrewing drill rod screw thread device - Google Patents
Self-balancing continuous screwing and unscrewing drill rod screw thread device Download PDFInfo
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- CN213450290U CN213450290U CN202022636481.9U CN202022636481U CN213450290U CN 213450290 U CN213450290 U CN 213450290U CN 202022636481 U CN202022636481 U CN 202022636481U CN 213450290 U CN213450290 U CN 213450290U
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Abstract
一种自平衡式连续拧卸钻杆丝扣装置，涉及钻井工程设备技术领域，包括悬壁支撑、左上拧卸组件、右上拧卸组件、左下拧卸组件和右下拧卸组件，左上拧卸组件、右上拧卸组件、左下拧卸组件和右下拧卸组件滑动连接在悬壁支撑上，由开合推力电机带动左上拧卸组件、右上拧卸组件、左下拧卸组件和右下拧卸组件实现夹紧或放松动作，本实用新型可使采用轴向深沟槽耐磨接头钻杆钻井起下时能够实现自动开合夹持钻杆接头、自平衡式连续回转拧卸钻杆和自动解卡归位等动作，是一种不需要大夹持力，只通过回转扭力就可以实现拧卸钻杆的自动化装置。
A self-balancing continuous unscrewing drill pipe screw device relates to the technical field of drilling engineering equipment, and includes a cantilever support, an upper left unscrewing component, an upper right unscrewing component, a lower left unscrewing component and a lower right unscrewing component, the upper left unscrewing component The assembly, the upper right unscrewing assembly, the lower left unscrewing assembly and the lower right unscrewing assembly are slidably connected to the cantilever support, and the upper left unscrewing assembly, the upper right unscrewing assembly, the lower left unscrewing assembly and the lower right unscrewing assembly are driven by the opening and closing thrust motor The assembly realizes the clamping or loosening action, and the utility model can realize automatic opening and closing of the drill pipe joint, self-balancing continuous rotary unscrewing and unloading of the drill pipe and automatic Actions such as unlocking and homing are an automatic device that can unscrew and unscrew the drill pipe only by rotating torque without requiring a large clamping force.
Description
Technical Field
The utility model belongs to the technical field of drilling engineering equipment, in particular to self-balancing continuous screw thread device of screwing off drilling rod suitable for technical field such as probing and well drilling.
Background
At present, a drill pipe is one of necessary downhole tools in the drilling technology, and the function of the drill pipe is very important. The drill rod structure mainly comprises a male joint and a female joint and a body, wherein the joints are used for connecting drill rods to form a long drill string, and the outer diameter of the joints is larger than that of the body in a normal condition. The joint is the main part clamped by the screwing and unscrewing tool, however, the clamp of the screwing and unscrewing tool needs to generate enough friction force with the outer surface of the joint through huge clamping force to screw or unscrew the joint between the drill rods, the clamp teeth at the moment are deeply embedded into the outer surface of the joint and form long scratches on the outer surface of the joint in the circumferential direction under the action of torsion, burrs or bulges generated by the scratches are easily worn when being contacted with a well wall in a well, the outer diameter of the drill rod joint is quickly reduced to the size of a eliminated or replaced joint after the drill rod joint is taken out for several times, and the mode of smooth- > burrs or bulges- > rotary wear is the main mode of wear of the drill rod joint. Meanwhile, when the drill rod enters the easy-reducing and mud-covered stratum, the situation that the well diameter is close to the drill rod joint is easy to happen, and underground accidents such as pump building or drill sticking are caused. In addition, a slurry circulation channel between the well wall and the joint is small, the on-way loss of slurry circulation is increased, and the pressure of a circulation pump is increased. To this end, the applicant proposes a drill rod for drilling having an axially deep-groove wear joint.
However, no screwing and unscrewing device matched with the drilling rod with the axial deep groove wear-resistant joint exists at present, and the aim of successfully screwing and unscrewing cannot be achieved by using the existing screwing and unscrewing tool. Therefore, the utility model relates to an utilize device internal force can twist in succession and unload the device that has the wear-resisting joint drilling rod of axial deep groove, it is very necessary to the application and the popularization of the wear-resisting joint drilling rod of axial deep groove, and is significant to high efficiency, energy-conserving the drilling.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a self-balancing continuous twist unloads drilling rod screw thread device makes and to realize the automatic centre gripping drill pipe joint that opens and shuts, self-balancing continuous gyration twist unloads the drilling rod and automatic action such as unfreezing playback when adopting the well drilling of axial deep groove wear joint drilling rod to get up, is one kind and does not need big clamping-force, just can realize twisting the automation equipment who unloads the drilling rod through gyration torsion.
A self-balancing continuous screwing and unscrewing drill rod screw thread device comprises a cantilever support, an upper left screwing and unscrewing component, an upper right screwing and unscrewing component, a lower left screwing and unscrewing component and a lower right screwing and unscrewing component;
the upper left screwing-off component and the lower right screwing-off component have the same structure;
the left lower screwing-disassembling component and the right upper screwing-disassembling component have the same structure;
the left rear lifting ring and the right rear lifting ring are rotationally connected to a cantilever support through a pin shaft, and the cantilever support is provided with an opening and closing thrust motor support seat, an upper left outer support shaft, a lower right outer support shaft and a left outer support shaft;
the opening and closing thrust motor stator shell is fixedly connected with the opening and closing thrust motor supporting seat, the opening and closing thrust motor rotor is coaxial with the through hole through the opening and closing thrust motor supporting seat, the opening and closing thrust motor rotor is coaxially and fixedly connected with the opening and closing thrust screw rod, the sliding block is coaxially and threadedly connected with the opening and closing thrust screw rod, the head end of the upper left opening and closing supporting rod and the head end of the upper right opening and closing supporting rod are rotatably connected with the sliding block through a pin shaft, and the tail end of the upper left opening and closing supporting rod and the tail end of the upper right opening and closing supporting rod are rotatably connected with the; the head end of the left lower opening supporting rod and the head end of the right lower opening supporting rod are rotationally connected with the sliding block through a pin shaft, the tail end of the left lower opening supporting rod and the tail end of the right lower opening supporting rod are rotationally connected with the left lower screwing and unscrewing component and the right lower screwing and unscrewing component through pin shafts, and the left upper screwing and unscrewing component, the right upper screwing and unscrewing component and the upper left and right outer supporting shafts are fixedly connected through the upper left and right outer supporting shaft fixing pin shaft in a single-degree-of-freedom mode; the left lower screwing-disassembling component, the right lower screwing-disassembling component and the lower left and right outer supporting shafts are fixedly connected through the lower left and right outer supporting shaft fixing pin shaft in a single-degree-of-freedom manner;
the upper left screwing-off component is connected with the lower left screwing-off component through a left front lifting ring;
the right upper screwing-off component is connected with the right lower screwing-off component through a right front hanging ring;
the left upper screwing-off component, the left lower screwing-off component, the right upper screwing-off component and the right lower screwing-off component are in sliding connection with the upper surface and the lower surface of the front end of the cantilever support through the bottoms of the left upper screwing-off component, the left lower screwing-off component, the right upper screwing-off component and the right lower screwing-off component;
the left upper screwing-off component is provided with a lead screw supporting hole, a left upper guide shaft and an inner arc surface, a torque transmission motor shell stator is fixedly connected with the left upper screwing-off component, and a torque transmission motor rotor penetrates through the left upper screwing-off component and extends into the left upper screwing-off component; the semi-ring-shaped limiting outer idler wheels of the semi-closed screwing-off gear and the semi-ring-shaped limiting inner idler wheels of the semi-closed screwing-off gear are distributed in the upper left screwing-off assembly, and the torque transmission gear is fixedly connected with a torque transmission motor rotor; the left half-closing screwing-unscrewing gear is provided with a left half-closing screwing-unscrewing gear outer roller step, a left half-closing screwing-unscrewing gear outer roller phase tangent plane, a left half-closing screwing-unscrewing gear inner roller step and a plurality of clamping block grooves, the left half-closed external gear wheel step and the left half-closed internal gear wheel step are respectively parallel to and not in contact with the bottom surface of the half-closed external gear wheel limit and the bottom surface of the half-closed internal gear wheel limit, the opposite tangent plane of the left half-closed external gear wheel and the opposite tangent plane of the left half-closed internal gear wheel are in contact rolling fit with the side surface of the half-closed external gear wheel limit and the side surface of the half-closed internal gear wheel limit, the inside of a clamping block groove of the left half-closed screwing-unscrewing gear is connected with a clamping block through a spring, an upper oblique arc surface is arranged on the clamping block, and the clamping block can slide in the clamping block groove along the radial direction of the left half-closed screwing-unscrewing gear;
the upper left actuating mechanism is provided with an upper left actuating mechanism outer arc surface, a guide shaft hole, an upper left actuating mechanism lower inclined surface and an upper left actuating mechanism screw hole, the upper left actuating mechanism is connected with an upper left guide shaft in a sliding manner through the guide shaft hole, the upper left actuating mechanism outer arc surface is in contact sliding fit with the inner arc surface, the motor support piece is fixedly connected with the upper left screwing-off component, the actuating motor shell stator is fixedly connected with the motor support piece, the actuating motor rotor penetrates through the upper left screwing-off component and then is fixedly connected with the screw rod, a screw thread arranged on the outer wall of the screw rod is matched with the upper left actuating mechanism screw hole, the clamping block is in contact sliding fit with the upper left actuating mechanism lower inclined surface through the upper inclined surface, and when the upper left actuating mechanism slides downwards under the action of the screw rod, the clamping block is extruded by the upper left actuating mechanism lower inclined surface and can slide along the radial;
the left half-closing screwing-off gear in the left upper screwing-off component is rotationally connected with the right half-closing screwing-off gear in the right upper screwing-off component through a left half-closing screwing-off gear fixing pin shaft and a right half-closing screwing-off gear fixing pin shaft.
The utility model has the advantages that:
1. the utility model discloses can implement quick continuous the operation of unscrewing to the drilling rod for the drilling that has axial deep groove wear joint under the state that does not need the clamping-force, wherein adopt automatic mode centre gripping drilling rod joint, internal force self-balancing to last gyration in succession under the gyration moment of torsion effect to unscrew, make automatically down and go up the grip block shrink and relieve the buckle relation of going up grip block and drill bit joint deep groove.
2. The utility model discloses filled the blank that the drilling rod of axial deep groove wear-resisting joint was twisted with high efficiency in succession and unloaded, potential range of application is wide, and is significant.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this application, and the exemplary embodiments and descriptions thereof are used to understand the invention without constituting undue limitations of the invention, in which:
fig. 1 is a general assembly axonometric view of a self-balancing continuous screwing and unscrewing drill rod screw thread device provided by the utility model.
FIG. 2 is an isometric view of a part of the self-balancing continuous screwing and unscrewing device for the drill rod screw thread.
Fig. 3 is a top view of the self-balancing continuous screwing-unscrewing drill rod screw thread device in an open state.
Fig. 4 is a bottom view of the self-balancing continuous screwing and unscrewing drill rod screw thread device in an open state.
Fig. 5 is a top view of the self-balancing continuous screwing-unscrewing drill rod screw thread device in a closed state.
Fig. 6 is a schematic diagram of the self-balancing continuous rotation of the half-closed gear of the screw thread device for continuously screwing and unscrewing the drill rod.
Fig. 7 is a schematic diagram of the self-balancing limiting roller set for continuously screwing and unscrewing the drill rod screw thread device.
Fig. 8 is a schematic diagram of an upper clamping block forcible retraction mechanism of a self-balancing continuous screwing and unscrewing drill rod screw thread device provided by the utility model.
Fig. 9 is a schematic diagram of the position relationship between the upper right clamping block forcible shrinkage mechanism and the upper clamping block in the closed screwing and unscrewing state of the self-balancing continuous screwing and unscrewing drill rod screw thread device provided by the utility model.
Fig. 10 is a schematic diagram of the position relationship between the upper clamping block and the clamping groove of the male joint section joint of the drill rod in the closed screwing-off state of the self-balancing continuous screwing-off drill rod screw thread device provided by the utility model.
Fig. 11 is a schematic diagram of the position relationship between the upper right clamping block forcible shrinkage mechanism and the upper clamping block in the closing and screwing-off state of the self-balancing continuous screwing-off drill rod screw thread device provided by the utility model.
Fig. 12 is a schematic diagram of the internal structure of the self-balancing continuous screwing and unscrewing device for screwing and unscrewing the drill rod screw thread, wherein the left upper screwing and unscrewing component and the left lower screwing and unscrewing component are connected.
Fig. 13 is a schematic view of the connection between the left half-closing screwing-unscrewing gear and the right half-closing screwing-unscrewing gear of the self-balancing continuous screwing-unscrewing drill rod screw thread device provided by the utility model.
Fig. 14 is a schematic side view of the self-balancing continuous screwing and unscrewing drill rod screw thread device half-closed screwing and unscrewing gear limiting outer roller shaft provided by the utility model.
Fig. 15 is a schematic axial view of an upper left actuating mechanism of the self-balancing continuous screwing and unscrewing drill rod threading device provided by the utility model.
Fig. 16 is a schematic view of the connection between the spring and the clamping block of the self-balancing continuous screwing and unscrewing drill rod screw thread device provided by the utility model.
Detailed Description
In order to explain the present invention more clearly, the present invention will be further described with reference to the preferred embodiments and the accompanying drawings. As will be appreciated by those skilled in the art. The following detailed description is intended to be illustrative rather than limiting, and is not intended to limit the scope of the invention. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.
A self-balancing continuous screwing and unscrewing device for a drill rod screw thread comprises a cantilever support 1, an upper left screwing and unscrewing component 2, an upper right screwing and unscrewing component 3, a lower left screwing and unscrewing component 4 and a lower right screwing and unscrewing component 5;
the upper left screwing-off component 2 and the lower right screwing-off component 5 have the same structure;
the left lower screwing-disassembling component 4 and the right upper screwing-disassembling component 3 have the same structure;
the cantilever support 1 is provided with two through holes, a left rear lifting ring 10 and a right rear lifting ring 11 are fixedly connected in the through holes through a single degree of freedom of a pin shaft, and the cantilever support 1 is provided with an opening and closing thrust motor support seat 12, an upper left outer support shaft fixing part 13, a lower left outer support shaft fixing part 13 and a lower right outer support shaft fixing part 14; the cantilever support 1 is used for providing integral support for the left upper screwing-off component 2, the right upper screwing-off component 3, the left lower screwing-off component 4 and the right lower screwing-off component 5;
the stator shell of the opening-closing thrust motor 15 is fixedly connected with the opening-closing thrust motor supporting seat 12, the rotor of the opening-closing thrust motor 15 passes through the through hole of the opening-closing thrust motor supporting seat 12 and is coaxial with the through hole, the rotor of the opening-closing thrust motor 15 is coaxially and fixedly connected with the opening-closing thrust screw rod, and the opening-closing thrust screw rod can be driven to synchronously rotate when the rotor of the opening-closing thrust motor 15 rotates; the opening and closing thrust motor 15 is used for providing power for the relative opening and closing of the upper left screwing and unscrewing component 2 and the upper right screwing and unscrewing component 3 and the relative opening and closing of the lower left screwing and unscrewing component 4 and the lower right screwing and unscrewing component 5;
the sliding block 17 is coaxially in threaded connection with the opening and closing thrust screw rod; the head end of the upper left opening and closing support rod 6 and the head end of the upper right opening and closing support rod 7 are fixedly connected with the slide block 17 through a single degree of freedom by a pin shaft, and the tail end of the upper left opening and closing support rod 6 and the tail end of the upper right opening and closing support rod 7 are fixedly connected with the upper left screwing and unscrewing component 2 and the upper right screwing and unscrewing component 3 through a single degree of freedom by a pin shaft; the head end of a left lower opening supporting rod 8 and the head end of a right lower opening supporting rod 9 are fixedly connected with a sliding block 17 in a single-degree-of-freedom manner through a pin shaft, the tail end of the left lower opening supporting rod 8 and the tail end of the right lower opening supporting rod 9 are fixedly connected with a left lower screwing and unscrewing component 4 and a right lower screwing and unscrewing component 5 in a single-degree-of-freedom manner through a pin shaft, and the left upper screwing and unscrewing component 2, the right upper screwing and unscrewing component 3 and an upper left and right outer supporting shaft fixing 13 are fixedly connected in a single-degree-of-; the left lower screwing-disassembling component 4, the right lower screwing-disassembling component 5 and the lower left and right outer support shaft fixing 14 are fixedly connected with each other in a single degree of freedom through a lower left and right outer support shaft fixing pin shaft 19;
the upper left screwing-off component 2 is connected with the lower left screwing-off component 4 through a left front hanging ring 200; namely, the upper left screwing-off component 2 and the lower left screwing-off component 4 are connected into a whole to realize synchronous motion;
the upper right screwing-off component 3 is connected with the lower right screwing-off component 5 through a right front hanging ring 201; namely, the upper right screwing-off component 3 and the lower right screwing-off component 5 are connected into a whole to realize synchronous motion;
the left upper screwing-off component 2, the left lower screwing-off component 4, the right upper screwing-off component 3 and the right lower screwing-off component 5 are in sliding connection with the upper surface and the lower surface of the front end of the cantilever support 1 through the bottoms of the left upper screwing-off component, the left lower screwing-off component and the right lower screwing-off component;
a screw rod supporting hole, an upper left guide shaft 21 and an inner arc surface 22 are arranged on the upper left screwing-off component 2, a shell stator of a torque transmission motor 23 is fixedly connected with the upper left screwing-off component 2, and a rotor of the torque transmission motor 23 penetrates through the upper left screwing-off component 2 and extends into the upper left screwing-off component 2; a plurality of semi-closed screwing-off gear limiting outer idler wheels 24 and a plurality of semi-closed screwing-off gear limiting inner idler wheels 25 are distributed in the upper left screwing-off component 2 in a semi-annular mode, and a torque transmission gear 26 is fixedly connected with a torque transmission motor 23 rotor; the left half-closed screwing-unscrewing gear 27 is provided with a left half-closed screwing-unscrewing gear outer roller step 270, a left half-closed screwing-unscrewing gear outer roller phase tangent plane 271, a left half-closed screwing-unscrewing gear inner roller phase tangent plane 272, a left half-closed screwing-unscrewing gear inner roller step 273 and a plurality of clamping block grooves 274, the left half-closed screwing-unscrewing gear outer roller step 270 and the left half-closed screwing-unscrewing gear inner roller step 273 are respectively parallel to the wheel bottom surface 240 of the half-closed screwing-unscrewing gear limiting outer roller 24 and the wheel bottom surface 240 of the half-closed screwing-unscrewing gear limiting inner roller 25 and have proper distances, and the half-closed screwing-unscrewing gear limiting outer roller 24 and the half-closed screwing-unscrewing gear limiting inner roller 25 are used for preventing the left half-closed screwing-unscrewing gear 27 from falling off; the phase tangent plane 271 of the outer roller of the left half-closed screwing-off gear and the phase tangent plane 272 of the inner roller of the left half-closed screwing-off gear are in contact rolling fit with the side surface 241 of the outer roller 24 of the half-closed screwing-off gear and the side surface 241 of the inner roller 25 of the half-closed screwing-off gear, the inside of the clamping block groove 274 of the left half-closed screwing-off gear 27 is connected with a clamping block 29 through a spring 28, the clamping block 29 is provided with an upper oblique arc surface 290, and the clamping block 29 can slide inside the clamping block groove 274 along the radial direction of the left half-closed screwing-off gear 27;
the upper left actuator 250 is provided with an upper left actuator outer arc surface 251, a guide shaft hole 252, an upper left actuator lower inclined surface 253 and an upper left actuator screw hole 254, the upper left actuator 250 is connected with the upper left guide shaft 21 through the guide shaft hole 252 in a sliding manner, the upper left actuator outer arc surface 251 is in concentric contact sliding fit with the inner arc surface 22, the motor support 255 is fixedly connected with the upper left screwing-off component 2, the housing stator of the actuator 256 is fixedly connected with the motor support 255, the rotor of the actuator 256 penetrates through the upper left screwing-off component 2 and is fixedly connected with the lead screw 257, the thread screw thread arranged on the outer wall of the lead screw 257 is in threaded fit with the upper left actuator screw hole 254, the lower fixed surface of the lead screw 257 is in interference fit with the inner bearing ring, the outer bearing ring is in interference fit with the lead screw support hole, the clamping block 29 is in contact sliding fit with the upper left actuator lower inclined surface 253 through the upper inclined arc surface 290, when the upper left actuator 250 slides, the clamping block 29 is extruded by the lower inclined surface 253 of the left upper execution mechanism to slide along the radial direction of the left half-closing screwing-unscrewing gear 27;
the left half-closing screwing-off gear 27 in the left upper screwing-off component 2 and the right half-closing screwing-off gear 37 in the right upper screwing-off component 3 are rotationally connected through a left half-closing screwing-off gear fixing pin shaft 20 and a right half-closing screwing-off gear fixing pin shaft 20.
The utility model discloses a theory of operation and process:
a clamping process: 4 steel wire ropes are tied on the left front hanging ring 200, the right front hanging ring 201, the left rear hanging ring 10 and the right rear hanging ring 11 respectively, the continuous screwing and unscrewing drill rod screw thread device is hung to a certain height and aligned with the connecting joint positions of the drill rod male joint section 60 and the drill rod female joint section 61 of the two drill rods, and the drill rod joint enters from the opening of the continuous screwing and unscrewing drill rod screw thread device by horizontal movement; then, the opening and closing thrust motor 15 works, and drives the slide block 17 to move forwards through the opening and closing thrust screw rod, so that the left upper opening and closing support rod 6, the right upper opening and closing support rod 7, the left lower opening and closing support rod 8 and the right lower opening and closing support rod 9 drive the left upper screwing and unscrewing component 2, the left lower screwing and unscrewing component 4, the right lower screwing and unscrewing component 5 and the right upper screwing and unscrewing component 3 to rotate below a left outer support shaft fixing pin 19 and an upper left outer support shaft fixing pin 18 and an upper right outer support shaft fixing pin 18 until the components are completely closed.
The buckling process of the upper clamping block, the lower clamping block and the deep groove of the drill rod joint comprises the following steps: firstly, the torque transmission motor 23 is slowly started, the left half-closing unscrewing gear 27 and the right half-closing unscrewing gear 37 are driven by the torque transmission gear 26, the left half-closing unscrewing gear 27 and the right half-closing unscrewing gear 37 slowly rotate in an annular space formed by the half-closing unscrewing gear limiting inner roller 25 and the half-closing unscrewing gear limiting outer roller 24, wherein the left half-closing unscrewing gear 27 and the right half-closing unscrewing gear 37 arranged in the left upper screwing-disassembling component 2 and the right upper screwing-disassembling component 3 and the left half-closing unscrewing gear 27 and the right half-closing unscrewing gear 37 arranged in the left lower screwing-disassembling component 4 and the right lower screwing-disassembling component 5 rotate in opposite directions, so that the clamping blocks 29 in the left upper screwing-disassembling component 2 and the right upper screwing-disassembling component 3 and the clamping blocks 29 in the left lower screwing-disassembling component 4 and the right lower screwing-disassembling component 5 completely enter the deep groove male joint section 60 and the drill pipe female joint section 61.
The self-balancing continuous make-up and break-out process comprises the following steps: when the joint is buckled, all the torque transmission motors 23 work at a high rotating speed, and when the buckling torque is gradually increased to a certain value, the torque transmission motors 23 can be automatically switched to a low rotating speed and high torque mode until the torque reaches the maximum buckling torque of the joint; when the thread is broken, all the torque transmission motors 23 work with large torque, when the torque exceeds the maximum breaking (or) torque of the joint, the drill rod joint starts to loosen, and when the breaking torque is gradually reduced to a certain value, the torque transmission motors 23 can be automatically switched to a large-rotating-speed small-torque mode until the thread is completely separated.
The homing and opening process: when the screwing torque is gradually increased to a certain value during screwing, the left half-closing screwing-off gear 27, the right half-closing screwing-off gear 37 and the left and right half-closing screwing-off gear fixing pin shaft 20 which are arranged in the left lower screwing-off component 4 and the right lower screwing-off component 5 start to rotate slowly until the axis of the left and right half-closing screwing-off gear fixing pin shaft 20 is superposed with the axis of the lower left and right outer supporting shaft fixing pin shaft 19, and then the screwing torque is stopped. At this time, the left half-closing unscrewing gear 27, the right half-closing unscrewing gear 37 and the left and right half-closing unscrewing gear fixing pin shaft 20 which are arranged in the right upper unscrewing component 3 of the left upper unscrewing component 2 continuously rotate until the screwing-on step is finished; when the axes of the left and right semi-closed screwing-unscrewing gear fixing pin shafts 20 and the upper left and right outer supporting shaft fixing pin shafts 18 do not coincide, the actuating motor 256 on the upper right screwing-unscrewing component 3 of the upper left screwing-unscrewing component 2 is started simultaneously, the screw 257 is driven by the actuating motor 256 to drive the upper left actuating mechanism 250 to move downwards, so that the lower inclined plane 253 of the upper left actuating mechanism is contacted with the upper inclined arc surface 290 of the clamping block 29, the clamping block 29 is forcibly extruded into the square clamping block groove 274 of the left semi-closed screwing-unscrewing gear 27 and the right semi-closed screwing-unscrewing gear 37, the spring 28 in the clamping block groove 274 is extruded and contracted, and at the moment, the clamping block 29 completely leaves the deep groove of the drill rod joint; then a left half-closing screwing-off gear 27, a right half-closing screwing-off gear 37 and a left and right half-closing screwing-off gear fixing pin shaft 20 which are arranged in the right upper screwing-off component 3 of the left upper screwing-off component 2 slowly rotate under the action of a torque transmission motor 23 until the axis of the left and right half-closing screwing-off gear fixing pin shaft 20 is superposed with the axis of an upper left and right outer support shaft fixing pin shaft 18; then, the opening and closing thrust motor 15 works, and drives the slide block 17 to move backwards through the opening and closing thrust screw rod, so that the left upper opening and closing support rod 6, the right upper opening and closing support rod 7, the left lower opening and closing support rod 8 and the right lower opening and closing support rod 9 drive the left upper screwing and unscrewing component 2, the right upper screwing and unscrewing component 3, the left lower screwing and unscrewing component 4 and the right lower screwing and unscrewing component 5 to rotate through the left and right outer support shaft fixed pin shaft 18 and the lower left and right outer support shaft fixed pin shaft 19 until the components are completely opened; and finally, horizontally moving the drill rod joint out of the opening of the continuous screwing-off drill rod threading device.
Claims (2)
1. The utility model provides a self-balancing continuous screw thread device of unscrewing drilling rod which characterized in that: comprises a suspended wall support (1), a left upper screwing-disassembling component (2), a right upper screwing-disassembling component (3), a left lower screwing-disassembling component (4) and a right lower screwing-disassembling component (5);
the upper left screwing-off component (2) and the lower right screwing-off component (5) have the same structure;
the left lower screwing-off component (4) and the right upper screwing-off component (3) have the same structure;
the left rear lifting ring (10) and the right rear lifting ring (11) are rotationally connected to a cantilever support (1) through a pin shaft, and an opening-closing thrust motor support seat (12), an upper left outer support shaft fixing part (13), a lower left outer support shaft fixing part (14) and a lower right outer support shaft fixing part (14) are arranged on the cantilever support (1);
the stator shell of the opening and closing thrust motor (15) is fixedly connected with the opening and closing thrust motor supporting seat (12), the rotor of the opening and closing thrust motor (15) is coaxial with the through hole of the opening and closing thrust motor supporting seat (12), the rotor of the opening and closing thrust motor (15) is coaxially and fixedly connected with the opening and closing thrust screw rod, the sliding block (17) is coaxially in threaded connection with the opening and closing thrust screw rod, the head end of the upper left opening and closing supporting rod (6) and the head end of the upper right opening and closing supporting rod (7) are rotatably connected with the sliding block (17) through pin shafts, and the tail end of the upper left opening and closing supporting rod (6) and the tail end of the upper right opening and closing supporting rod (7) are rotatably connected with the upper left screwing and unscrewing component; the head end of a left lower opening supporting rod (8) and the head end of a right lower opening supporting rod (9) are rotationally connected with a sliding block (17) through a pin shaft, the tail end of the left lower opening supporting rod (8) and the tail end of the right lower opening supporting rod (9) are rotationally connected with a left lower screwing and unscrewing component (4) and a right lower screwing and unscrewing component (5) through pin shafts, and a left upper screwing and unscrewing component (2), a right upper screwing and unscrewing component (3) and an upper left outer supporting shaft and a right outer supporting shaft are fixedly connected with each other through an upper left supporting shaft fixing pin shaft and a right outer supporting shaft fixing pin shaft (18) in a single; the left lower screwing-disassembling component (4), the right lower screwing-disassembling component (5) and the lower left and right outer support shaft fixing component (14) are fixedly connected with each other in a single degree of freedom through a lower left and right outer support shaft fixing pin shaft (19);
the upper left screwing-off component (2) is connected with the lower left screwing-off component (4) through a left front lifting ring (200);
the right upper screwing-off component (3) is connected with the right lower screwing-off component (5) through a right front hanging ring (201);
the left upper screwing-off component (2), the left lower screwing-off component (4), the right upper screwing-off component (3) and the right lower screwing-off component (5) are in sliding connection with the upper surface and the lower surface of the front end of the suspended wall support (1) through the bottoms of the left upper screwing-off component, the left lower screwing-off component, the right upper screwing-off component and the right lower screwing-off component;
a screw rod supporting hole, an upper left guide shaft (21) and an inner arc surface (22) are arranged on the upper left screwing-off component (2), a shell stator of a torque transmission motor (23) is fixedly connected with the upper left screwing-off component (2), and a rotor of the torque transmission motor (23) penetrates through the upper left screwing-off component (2) and extends into the upper left screwing-off component (2); a plurality of semi-closed screwing-off gear limiting outer idler wheels (24) and a plurality of semi-closed screwing-off gear limiting inner idler wheels (25) are distributed in the upper left screwing-off component (2) in a semi-annular mode, and a torque transmission gear (26) is fixedly connected with a torque transmission motor (23) rotor; the left half-closing unscrewing gear (27) is provided with a left half-closing unscrewing gear outer roller step (270), a left half-closing unscrewing gear outer roller phase tangent plane (271), a left half-closing unscrewing gear inner roller phase tangent plane (272), a left half-closing unscrewing gear inner roller step (273) and a plurality of clamping block grooves (274), the left half-closing unscrewing gear outer roller step (270) and the left half-closing unscrewing gear inner roller step (273) are respectively parallel to and not in contact with a half-closing unscrewing gear limiting outer roller (24) wheel bottom surface (240) and a half-closing unscrewing gear limiting inner roller (25) wheel bottom surface (240), the left half-closing unscrewing gear outer roller phase tangent plane (271) and the left half-closing unscrewing gear inner roller phase tangent plane (272) are in contact rolling fit with a half-closing unscrewing gear limiting outer roller (24) side surface (241) and a half-closing unscrewing gear limiting inner roller (25) side surface (241), and the inside of the left half-closing unscrewing gear (27) clamping block grooves (274) are connected with clamping blocks (29), an upper inclined arc surface (290) is arranged on the clamping block (29), and the clamping block (29) can slide in the clamping block groove (274) along the radial direction of the left half-closing screwing-unscrewing gear (27);
the upper left actuating mechanism (250) is provided with an upper left actuating mechanism outer arc surface (251), a guide shaft hole (252), an upper left actuating mechanism lower inclined surface (253) and an upper left actuating mechanism screw hole (254), the upper left actuating mechanism (250) is in sliding connection with the upper left guide shaft (21) through the guide shaft hole (252), the upper left actuating mechanism outer arc surface (251) is in contact sliding fit with the inner arc surface (22), a motor supporting piece (255) is fixedly connected with the upper left screwing-off component (2), a shell stator of the actuating motor (256) is fixedly connected with the motor supporting piece (255), a rotor of the actuating motor (256) penetrates through the upper left screwing-off component (2) and is fixedly connected with a lead screw (257), a thread arranged on the outer wall of the lead screw (257) is in thread fit with the upper left actuating mechanism screw hole (254), and a clamping block (29) is in contact sliding fit with the upper left actuating mechanism lower inclined surface (253) through the upper inclined arc surface (290), when the upper left actuating mechanism (250) slides downwards under the action of the lead screw (257), the clamping block (29) is extruded by the lower inclined surface (253) of the upper left actuating mechanism and can slide along the radial outward direction of the left half-closing screwing-unscrewing gear (27);
the left half-closing screwing-off gear (27) in the left upper screwing-off component (2) is rotationally connected with the right half-closing screwing-off gear (37) in the right upper screwing-off component (3) through a left half-closing screwing-off gear fixing pin shaft (20).
2. The self-balancing continuous screwing-unscrewing drill rod screw thread device as recited in claim 1, wherein: the lower fixing surface of the lead screw (257) is in interference fit with the bearing inner ring, and the bearing outer ring is in interference fit with the lead screw supporting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022636481.9U CN213450290U (en) | 2020-11-16 | 2020-11-16 | Self-balancing continuous screwing and unscrewing drill rod screw thread device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022636481.9U CN213450290U (en) | 2020-11-16 | 2020-11-16 | Self-balancing continuous screwing and unscrewing drill rod screw thread device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213450290U true CN213450290U (en) | 2021-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022636481.9U Withdrawn - After Issue CN213450290U (en) | 2020-11-16 | 2020-11-16 | Self-balancing continuous screwing and unscrewing drill rod screw thread device |
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| Country | Link |
|---|---|
| CN (1) | CN213450290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177549A (en) * | 2020-11-16 | 2021-01-05 | 吉林大学 | A self-balancing continuous unscrewing drill rod screw device |
-
2020
- 2020-11-16 CN CN202022636481.9U patent/CN213450290U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177549A (en) * | 2020-11-16 | 2021-01-05 | 吉林大学 | A self-balancing continuous unscrewing drill rod screw device |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20210615 Effective date of abandoning: 20211221 |