CN211258518U

CN211258518U - High anti-torque sucker rod

Info

Publication number: CN211258518U
Application number: CN201921828702.3U
Authority: CN
Inventors: 杨坤; 郭增辉
Original assignee: JIYUAN PETROLEUM MACHINERY CO Ltd
Current assignee: JIYUAN PETROLEUM MACHINERY CO Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-08-14
Anticipated expiration: 2029-10-29

Abstract

The utility model relates to a production and the manufacturing technical field of sucker rod, and disclose a high anti moment of torsion sucker rod, the electric iron comprises a pole body, the bottom fixedly connected with inserted bar of the body of rod, the bottom fixedly connected with screw rod of inserted bar, connect into the spiral shell inslot earlier the screw rod, after the screw rod is connected and is accomplished, the inserted bar has also been pegged graft into the slot, twist the nut on the internal thread this moment, the external screw thread that the nut slowly descends its outer wall also is connected with the mounting groove, the position of the body of rod is further fixed, make it have better anti moment of torsion performance, the coating of chemical coating makes the hardness of the body of rod higher, and wear resistance is better, can satisfy the operation requirement of sucker rod in the corruption well, cup joint of sealing washer can carry out fine protection to the junction, thereby prevent it from being heated unstable and taking place the condition that drops, the utility model discloses simple structure, it is, The problem of breaking and the like has the advantage of high torque resistance.

Description

High anti-torque sucker rod

Technical Field

The utility model relates to a production and the manufacturing technical field of sucker rod specifically are a high anti-torque sucker rod.

Background

The sucker rod is a slender rod in the pumping unit, and is connected with a polished rod and an oil-well pump to transmit power. The length of a single sucker rod is about 8m, the material is generally low carbon alloy steel which is subjected to quenching and tempering, the sucker rods are connected by internal threads in an oil pipe and extend to a piston at an underground oil layer, oil is pumped by reciprocating motion, most of the sucker rods for oil extraction in oil fields on the market at present are friction welding type common sucker rods, and the sucker rods have a plurality of defects in use, such as the threads at two ends are easy to block and the joints can not be opened frequently, so that certain obstruction is brought to the replacement work, and if the joints and the rod bodies adopt the friction welding type, cracks, breaking and the like are often caused by the stress concentration of the friction welding ports, great difficulty is brought to the oil extraction effect, the working efficiency of the oil extraction is seriously influenced, great economic loss is brought to the oil fields, and the maintenance is very troublesome, a large amount of manpower and material resources are wasted, and if the sucker rod with the common standard is used in a deep well and a corrosion well, the service life is generally short, and the use requirement of an oil field cannot be met, so that how to enable the sucker rod to have higher torque resistance becomes a technical problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a high anti moment of torsion sucker rod possesses the advantage of high anti moment of torsion, has solved the problem of the condition such as the sucker rod takes place crackle easily, breaks and takes off.

(II) technical scheme

For the purpose of realizing above-mentioned high antitorque square, the utility model provides a following technical scheme: the utility model provides a high anti moment of torsion sucker rod, includes the body of rod, the internal thread has been seted up to the outer wall below of the body of rod, internal screw thread outer wall threaded connection has the nut, the external screw thread has been seted up to the outer wall of nut, the bottom fixedly connected with inserted bar of the body of rod, the bottom fixedly connected with screw rod of inserted bar, the outer wall swing joint of screw rod has the packing ring, the outer wall middle part fixedly connected with strengthening rib of the body of rod, the outer wall fixedly connected with chemical plating layer of strengthening rib, the outer wall top fixedly connected with sealing washer of the body of rod, the mounting groove has been seted up at the top of the body of rod, the.

Preferably, the line of external screw thread and the inner wall line phase-match of mounting groove are pegged graft when inserted bar and slot and are accomplished the back, can install the nut into the mounting groove through the external screw thread to the connection sucker rod that can be more stable.

Preferably, the diameter phase-match of the diameter of inserted bar and slot, the inserted bar can be just in the plug-in goes into the slot, both can not match the plug-in because of the diameter and can not go into, also can not differ the too big circumstances such as rocking of taking place because of the diameter.

Preferably, the packing ring is the synthetic rubber material, and the synthetic rubber material has advantages such as elasticity is good, wear-resisting, waterproof and grease proofing, and the bottom of protection inserted bar that can be fine prevents that it from wearing and tearing too fast under the exogenic action.

Preferably, the chemical plating layer enables the nickel-phosphorus alloy plating layer to have higher hardness and good wear resistance, the overall performance of the chemical plating layer is superior to that of an electroplated layer, and the use requirements of the sucker rod in deep wells and corrosion wells can be met.

Preferably, the sealing washer cup joints on the whole upper portion outer wall of the body of rod, and the sealing washer is high temperature resistant sealing washer, can carry out fine protection to the sealed junction of sealing washer, thereby prevents that it from being heated the unstable condition that takes place to drop.

Preferably, the outside of slot is the upset formula, and the connector moment of upset formula is bigger, has improved the anti-torque performance of sucker rod greatly, makes it can not take place the condition such as crackle, break and take off.

(III) advantageous effects

Compared with the prior art, the utility model provides a high anti moment of torsion sucker rod possesses following beneficial effect:

1. this high anti-torque sucker rod, the coating through chemical plating layer makes the hardness of the body of rod higher, wear resistance is good, can satisfy the operation requirement of sucker rod in deep well and corruption well, cup joint through the sealing washer can carry out fine protection to the sealed junction of sealing washer, thereby prevent it to be heated the unstable condition that takes place to drop, the connector through the upset formula has improved the anti-torque performance of sucker rod greatly, make it can not take place the crackle, the condition such as disconnected take off, through chemical plating layer, cooperation between the body of rod and the sealing washer is used, thereby reached and made the sucker rod performance better, the effect that anti-torque is bigger.

2. This high anti-torque sucker rod, the bottom of protection inserted bar that can be fine through the setting of packing ring, prevent that it from wearing and tearing too fast under the exogenic action, then connect into the screw rod in the thread groove, after the screw rod is connected and is accomplished, the inserted bar has also been pegged graft into in the slot, twist the nut on the internal thread this moment, the external screw thread that the nut slowly descends its outer wall also is connected with the mounting groove, further position of fixing the body of rod, make it have better anti-torque performance, through the packing ring, the inserted bar, the screw rod, the nut, the slot, the internal thread, the external screw thread, cooperation between mounting groove and the body of rod is used, thereby reached and to have enabled the sucker rod to have the effect of high.

Drawings

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

fig. 2 is a schematic view of the rod body connection of the present invention.

In the figure: 1-rod body, 2-nut, 3-external thread, 4-internal thread, 5-inserted rod, 6-screw, 7-gasket, 8-chemical plating, 9-reinforcing rib, 10-sealing ring, 11-screw groove, 12-slot and 13-mounting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1-2, a high torque resistance sucker rod comprises a rod body 1, wherein an inner thread 4 is formed below the outer wall of the rod body 1, a nut 2 is connected to the outer wall of the inner thread 4 through a thread, an outer thread 3 is formed on the outer wall of the nut 2, the texture of the outer thread 3 is matched with the texture of the inner wall of a mounting groove 13, after an insertion rod 5 is inserted into the slot 12, the nut 2 can be installed into the mounting groove 13 through the outer thread 3, so that the sucker rod can be connected more stably, an insertion rod 5 is fixedly connected to the bottom of the rod body 1, the diameter of the insertion rod 5 is matched with the diameter of the slot 12, the insertion rod 5 can be just inserted into the slot 12, the situation that the rod cannot be inserted into the slot due to the unmatched diameter and the shaking caused by the overlarge diameter difference is avoided, a screw rod 6 is fixedly connected to the bottom of the insertion rod 5, the synthetic rubber material has the advantages of good elasticity, wear resistance, water and oil resistance and the like, the bottom of the inserted rod 5 can be well protected, the inserted rod is prevented from being worn too fast under the action of external force, the middle part of the outer wall of the rod body 1 is fixedly connected with the reinforcing rib 9, the outer wall of the reinforcing rib 9 is fixedly connected with the chemical coating 8, the chemical coating 8 enables the nickel-phosphorus alloy coating to have higher hardness and good wear resistance, the overall performance is better than that of an electroplated layer, the use requirements of the sucker rod in a deep well and a corrosion well can be met, the sealing ring 10 is fixedly connected above the outer wall of the rod body 1, the sealing ring 10 is sleeved on the whole upper outer wall of the rod body 1, the sealing ring 10 is a high-temperature-resistant sealing ring 10, the joint sealed by the sealing ring 10 can be well protected, the situation that the sucker rod is, the outside of the slot 12 is of a upsetting type, the moment of a connecting port of the upsetting type is larger, the anti-torque performance of the sucker rod is greatly improved, the sucker rod cannot crack or break off, and the bottom of the slot 12 is provided with the thread groove 11.

The working principle is that the screw 6 is connected into the screw groove 11, after the screw 6 is connected, the inserted rod 5 is also inserted into the slot 12, the nut 2 on the internal thread 4 is screwed, the nut 2 slowly descends, the external thread 3 on the outer wall of the nut is also connected with the mounting groove 13, the position of the rod body 1 is further fixed, the rod body 1 has better torque resistance, the rod body 1 has higher hardness and good wear resistance due to the coating of the chemical coating layer 8, the use requirements of the sucker rod in a deep well and a corrosion well can be met, the joint sealed by the sealing ring 10 can be well protected through the sleeving of the sealing ring 10, the phenomenon that the sucker rod falls off due to unstable heating is prevented, and the upset type connecting port greatly improves the torque resistance of the sucker rod, so that the sucker rod cannot crack, break and the like.

In conclusion, the sucker rod with high torque resistance has the advantages that the chemical plating layer 8 is coated to ensure that the rod body 1 has higher hardness and good wear resistance, the use requirements of the sucker rod in deep wells and corrosion wells can be met, the joint sealed by the sealing ring 10 can be well protected by sleeving the sealing ring 10, the sucker rod is prevented from falling off due to unstable heating, the torque resistance of the sucker rod is greatly improved by the upset connecting port, cracks, breaking and the like cannot occur, and the chemical plating layer 8, the rod body 1 and the sealing ring 10 are matched for use, so that the effects of better performance and higher torque resistance of the sucker rod are achieved; through the bottom of the protection inserted bar 5 of packing ring 7 that sets up can be fine, prevent it too fast under the exogenic action wearing and tearing, then connect into the thread groove 11 to screw rod 6, after the completion is connected to screw rod 6, inserted bar 5 has also pegged graft into in slot 12, twist nut 2 on the internal thread 4 this moment, nut 2 slowly descends the external screw thread 3 of its outer wall also to be connected with mounting groove 13, further fix the position of the body of rod 1, make it have better anti-torque performance, through packing ring 7, inserted bar 5, screw rod 6, nut 2, slot 12, internal thread 4, external screw thread 3, the cooperation between mounting groove 13 and the body of rod is used, thereby reached and to have made the sucker rod have high anti-torque performance's effect.

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

1. The utility model provides a high anti moment of torsion sucker rod, includes the body of rod (1), its characterized in that: an internal thread (4) is arranged below the outer wall of the rod body (1), the outer wall of the internal thread (4) is connected with a screw cap (2) in a threaded manner, the outer wall of the nut (2) is provided with an external thread (3), the bottom of the rod body (1) is fixedly connected with an inserted rod (5), the bottom of the inserted link (5) is fixedly connected with a screw (6), the outer wall of the screw (6) is movably connected with a gasket (7), the middle part of the outer wall of the rod body (1) is fixedly connected with a reinforcing rib (9), the outer wall of the reinforcing rib (9) is fixedly connected with a chemical plating layer (8), a sealing ring (10) is fixedly connected above the outer wall of the rod body (1), an installation groove (13) is arranged at the top of the rod body (1), the bottom of the mounting groove (13) is provided with a slot (12), and the bottom of the slot (12) is provided with a spiral groove (11).

2. The high torque resistance sucker rod of claim 1 wherein: the lines of the external threads (3) are matched with the lines of the inner wall of the mounting groove (13).

3. The high torque resistance sucker rod of claim 1 wherein: the diameter of the inserted bar (5) is matched with that of the slot (12).

4. The high torque resistance sucker rod of claim 1 wherein: the gasket (7) is made of synthetic rubber.

5. The high torque resistance sucker rod of claim 1 wherein: the chemical plating layer (8) is a nickel-phosphorus alloy plating layer.

6. The high torque resistance sucker rod of claim 1 wherein: and the sealing ring (10) is sleeved on the whole upper outer wall of the rod body (1).

7. The high torque resistance sucker rod of claim 1 wherein: the outer part of the slot (12) is in a upsetting type.