CN214110460U - Three-jaw structure of pre-screwing machine - Google Patents

Abstract

The utility model relates to the technical field of petroleum equipment, and discloses a three-jaw structure of a pre-screwing machine, which solves the problem that the three-jaw structure of the prior pre-screwing machine can not flexibly clamp a petroleum oil pipe or a sleeve pipe, and comprises a bottom plate, wherein a fixed block is fixedly arranged on one side of the top of the bottom plate, a transmission mechanism is arranged at the top of the fixed block, a supporting block is fixedly arranged in the middle of the top of the bottom plate, a rolling block is rotatably arranged in the middle of the supporting block, a ring is fixedly arranged at one end of the rolling block, a threaded rod is rotatably arranged at one end of the ring, and a jaw mechanism is arranged at one end of the threaded rod; make that this structure can be nimble carry out the centre gripping to oil pipe or sleeve pipe to can screw up oil pipe or sleeve pipe, can protect well reversal motor simultaneously to a certain extent, thereby provide the work efficiency of screwing up the machine in advance, and then make the productivity of screwing up the machine in advance can satisfy the demand of enterprise.

Description

Three-jaw structure of pre-screwing machine

Technical Field

The utility model belongs to the technical field of the oil equipment, specifically be a twist three-jaw structure of machine in advance.

Background

The pre-screwing machine in the field of petroleum equipment is equipment for screwing a coupling on a pipe body according to a standard during production of a petroleum oil pipe or a casing, and with the development of the petroleum industry, more and more patent fasteners are used, so that higher requirements are put forward on the pre-screwing machine, and the future main development trend is no tooth marks or micro tooth marks.

The three-jaw structure of the existing pre-screwing machine cannot clamp the petroleum pipe or the casing pipe flexibly, so that the working efficiency of the pre-screwing machine can be influenced, the productivity of the pre-screwing machine cannot meet the production requirements of enterprises, and the three-jaw structure of the pre-screwing machine, which can clamp the petroleum pipe or the casing pipe flexibly, is urgently needed to be designed.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a twist three-jaw structure of machine in advance, the effectual problem of carrying out the centre gripping to oil pipe or sleeve pipe that has solved the current problem of twisting the three-jaw structure of machine in advance in the above-mentioned background art in a flexible way.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a twist three-jaw structure of machine in advance, includes the bottom plate, one side fixed mounting at bottom plate top has the fixed block, and drive mechanism is installed at the top of fixed block, and the middle part fixed mounting at bottom plate top has the supporting shoe, and the middle part of supporting shoe rotates and installs the rolling block, and the one end fixed mounting of rolling block has the ring, and the one end of ring rotates installs the threaded rod, and claw mechanism is installed to the one end of threaded rod.

Preferably, the transmission mechanism comprises a speed regulating motor, a connecting shaft and a connecting block, the speed regulating motor is fixedly installed at the top of the fixing block, the connecting shaft is fixedly installed at the output end of the speed regulating motor, the connecting block is fixedly installed at one end of the connecting shaft, and one end of the connecting block is fixedly connected with one end of the rolling block.

Preferably, the middle part of the threaded rod is in threaded connection with a moving block, and the inside of the circumferential surface of the moving block is rotatably connected with three connecting strips.

Preferably, the claw mechanism comprises an arranging block and three clamping claws, the arranging block is rotatably arranged at one end of the threaded rod, the three clamping claws are respectively rotatably arranged in the circumferential surface of the arranging block, and one ends of the three clamping claws are respectively rotatably connected with one ends of the three connecting strips.

Preferably, the inside of rolling piece has seted up the mounting groove, and the inside fixed mounting of mounting groove has the protection piece, and the one end of protection piece is connected with the other end stationary phase of ring.

Preferably, the ventilation hole has been seted up to the upper portion of protection piece and the equal distance in lower part, and the middle part fixed mounting of the ring other end has positive reverse motor, and positive reverse motor is located the inside of protection piece, and the threaded rod other end runs through the ring and is connected with the output stationary phase of positive reverse motor.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) during work, the structure can flexibly clamp and screw down the petroleum oil pipe or the casing pipe and can protect the positive and negative rotation motor to a certain extent by arranging the speed regulating motor, the connecting shaft, the rolling block, the threaded rod, the moving block, the clamping claw, the protective block and the positive and negative rotation motor, so that the working efficiency of the pre-screwing machine is improved, and the capacity of the pre-screwing machine can meet the requirements of enterprises;

(2) when oil pipe or sleeve pipe need be screwed up, at first start the motor that is just reversing, the rotation of the motor that is just reversing can drive the movable block through the threaded rod and begin to remove, the removal of movable block can drive the gripper jaw through the connecting strip and expand, then place the oil pipe or sleeve pipe that need screw up between three gripper jaw, connect and start the motor that is just reversing in the reverse direction, thereby make three gripper jaw can carry out the centre gripping to oil pipe or sleeve pipe, then start the buncher, buncher's rotation can drive the connecting block through the connecting axle and begin to rotate, the rotation of connecting block can drive the rolling block and begin to rotate, thereby can drive oil pipe or sleeve pipe by the centre gripping and rotate, and then can screw up oil pipe or sleeve pipe.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

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

FIG. 2 is a schematic cross-sectional view of the present invention shown in FIG. 1;

FIG. 3 is a schematic structural diagram of the transmission mechanism of the present invention in a side view;

fig. 4 is an enlarged schematic view of a portion a of fig. 2 according to the present invention;

fig. 5 is an enlarged schematic view of the structure of fig. 2B according to the present invention;

in the figure: 1. a base plate; 2. a fixed block; 3. a transmission mechanism; 301. a speed-regulating motor; 302. a connecting shaft; 303. connecting blocks; 4. a support block; 5. a rolling block; 501. mounting grooves; 6. a circular ring; 7. a threaded rod; 8. a moving block; 9. a connecting strip; 10. a claw mechanism; 1001. a mounting block; 1002. a gripper jaw; 11. a protection block; 12. a vent hole; 13. a positive and negative rotation motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Embodiment one, by figure 1, figure 2 and figure 3 give, the utility model discloses a bottom plate 1, one side fixed mounting at bottom plate 1 top has fixed block 2, setting through fixed block 2, thereby can install drive mechanism 3, drive mechanism 3 is installed at the top of fixed block 2, the middle part fixed mounting at bottom plate 1 top has supporting shoe 4, setting through supporting shoe 4, thereby can support rolling block 5, rolling block 5 is installed in the rotation in the middle part of supporting shoe 4, rolling block 5's one end fixed mounting has ring 6, threaded rod 7 is installed in the rotation of the one end of ring 6, setting through threaded rod 7, thereby make the round trip movement that moving block 8 can be free, claw mechanism 10 is installed to the one end of threaded rod 7.

In the second embodiment, on the basis of the first embodiment, as shown in fig. 2 and 3, the transmission mechanism 3 includes a speed-regulating motor 301, a connecting shaft 302 and a connecting block 303, the speed-regulating motor 301 is fixedly mounted on the top of the fixing block 2, the connecting shaft 302 is fixedly mounted on the output end of the speed-regulating motor 301, the connecting block 303 is fixedly mounted at one end of the connecting shaft 302, and one end of the connecting block 303 is fixedly connected with one end of the rolling block 5, so that power can be provided for the rotation of the rolling block 5.

In the third embodiment, on the basis of the first embodiment, as shown in fig. 1, a moving block 8 is screwed to the middle of the threaded rod 7, and three connecting bars 9 are rotatably connected to the inner portion of the circumferential surface of the moving block 8, so that the moving block 8 can be connected to the clamping claws 1002.

Fourth embodiment, on the basis of the first embodiment, as shown in fig. 2 and 5, the jaw mechanism 10 includes a mounting block 1001 and three clamping jaws 1002, the mounting block 1001 is rotatably mounted at one end of the threaded rod 7, the three clamping jaws 1002 are respectively rotatably mounted inside the circumferential surface of the mounting block 1001, and one ends of the three clamping jaws 1002 are respectively rotatably connected with one ends of the three connecting bars 9, so that the closing of the three clamping jaws 1002 can be controlled by the rotation of the threaded rod 7.

In the fifth embodiment, on the basis of the first embodiment, as shown in fig. 4, an installation groove 501 is formed in the rolling block 5, a protection block 11 is fixedly installed in the installation groove 501, and one end of the protection block 11 is fixedly connected with the other end of the ring 6, so that the positive and negative rotation motor 13 can be protected to a certain extent.

Sixth embodiment, on the basis of fifth embodiment, as shown in fig. 4 and 2, the upper portion and the lower portion of the protection block 11 are equally spaced by a vent hole 12, a forward and reverse rotation motor 13 is fixedly installed in the middle of the other end of the ring 6, the forward and reverse rotation motor 13 is located inside the protection block 11, and the other end of the threaded rod 7 penetrates through the ring 6 and is fixedly connected with the output end of the forward and reverse rotation motor 13, so that the threaded rod 7 can be driven to rotate.

The working principle is as follows: when oil pipe or casing needs to be screwed down, at first, the forward and reverse motor 13 is started, the forward and reverse motor 13 rotates to drive the moving block 8 to move through the threaded rod 7, the moving block 8 moves to drive the clamping claws 1002 to expand through the connecting strips 9, then the oil pipe or casing needing to be screwed down is placed between the three clamping claws 1002, and the forward and reverse motor 13 is started in the reverse direction, so that the three clamping claws 1002 can clamp the oil pipe or casing, then the speed regulating motor 301 is started, the rotation of the speed regulating motor 301 can drive the connecting block 303 to rotate through the connecting shaft 302, the rotation of the connecting block 303 can drive the rolling block 5 to rotate, so that the clamped oil pipe or casing can be driven to rotate, and the oil pipe or casing can be screwed down.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a three-jaw structure of pretwisting machine, includes bottom plate (1), its characterized in that: one side fixed mounting at bottom plate (1) top has fixed block (2), and drive mechanism (3) are installed at the top of fixed block (2), and the middle part fixed mounting at bottom plate (1) top has supporting shoe (4), and the middle part of supporting shoe (4) is rotated and is installed rolling block (5), and the one end fixed mounting of rolling block (5) has ring (6), and threaded rod (7) are installed in the one end rotation of ring (6), and claw mechanism (10) are installed to the one end of threaded rod (7).

2. A triple jaw construction of a pre-twister according to claim 1, wherein: drive mechanism (3) are including buncher (301), connecting axle (302) and connecting block (303), and buncher (301) fixed mounting is at the top of fixed block (2), and connecting axle (302) fixed mounting is at the output of buncher (301), and connecting block (303) fixed mounting is in the one end of connecting axle (302), and the one end of connecting block (303) is connected with the one end stationary phase of rolling piece (5).

3. A triple jaw construction of a pre-twister according to claim 1, wherein: the middle part of the threaded rod (7) is in threaded connection with a moving block (8), and the inner part of the circumferential surface of the moving block (8) is rotatably connected with three connecting strips (9).

4. A triple jaw construction of a pre-twister according to claim 1, wherein: the claw mechanism (10) comprises a placing block (1001) and three clamping claws (1002), the placing block (1001) is rotatably installed at one end of the threaded rod (7), the three clamping claws (1002) are rotatably installed inside the circumferential surface of the placing block (1001) respectively, and one ends of the three clamping claws (1002) are rotatably connected with one ends of the three connecting strips (9) respectively.

5. A triple jaw construction of a pre-twister according to claim 1, wherein: mounting groove (501) have been seted up to the inside of rolling piece (5), and the inside fixed mounting of mounting groove (501) has protection piece (11), and the one end of protection piece (11) is connected with the other end stationary phase of ring (6).

6. A triple jaw construction of a pre-screwing machine according to claim 5, characterised in that: ventilation hole (12) have been seted up to the upper portion of protection piece (11) and the equal distance in lower part, and the middle part fixed mounting of ring (6) other end has positive reverse motor (13), and just positive reverse motor (13) are located the inside of protection piece (11), and threaded rod (7) other end runs through ring (6) and is connected with the output stationary phase of positive reverse motor (13).

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