CN107034497A - A kind of electroplanting device for oil well pipe box cupling inner surface - Google Patents

Abstract

The invention discloses an electroplating device for the inner surface of an oil well pipe coupling, which includes an electroplating table, an electrode wire, a stirring mechanism, and an electric mechanism for driving the stirring mechanism to rotate. The stirring mechanism includes a stirring support and a protruding The rotating fan blade in the oil well pipe coupling, the stirring bracket is connected with a rotating head, the rotating fan blade includes a rotor and electrode blades, the electric mechanism includes a controller, and the controller is connected with a power module and a switch control module , a lifting motor and a rotating motor, the electrode wires include a positive wire and a negative wire, the positive wire is electrically connected to the rotating rod, and the negative wire is electrically connected to the oil well pipe collar. The invention is simple in structure and reasonable in design. It is equipped with a stirring mechanism, an electric mechanism and an electrode wire, which effectively solves the problem of uneven plating caused by the concentration difference of the plating solution in the oil well pipe coupling, thereby enhancing the plating effect, and is convenient to use and practical. Strong, good use effect, easy to popularize and use.

Description

An electroplating device for the inner surface of oil well pipe coupling

technical field

The invention belongs to the technical field of electroplating, and in particular relates to an electroplating device for the inner surface of an oil well pipe coupling.

Background technique

Since the inner surface of the oil well pipe coupling is provided with threads, copper plating is usually used to improve the wear resistance and anti-sticking performance of the thread of the oil well pipe coupling. However, the existing electroplating devices for copper plating generally adopt static copper electrodes or complex electroplating devices with stirring devices. Static copper electrodes are mostly rod-shaped or flake-shaped, and the area where they contact and react with the electroplating solution is limited, and because they are still, the concentration of the electroplating solution will be uneven during the electroplating process, which will lead to uneven deposition rates. The coating is uneven and uneven, which leads to the destruction of the integrity of the threaded connection of the oil well pipe coupling. Continued use may cause major engineering accidents and cause huge economic losses. Therefore, it is necessary to improve the copper plating effect of the oil well pipe coupling and improve the thread resistance. Abrasion and anti-stick properties. However, the electroplating device with a stirring device has a complex structure and is inconvenient to operate.

Contents of the invention

The technical problem to be solved by the present invention is to provide an electroplating device for the inner surface of the oil well pipe coupling, which has a simple structure and a reasonable design, and is equipped with a stirring mechanism, an electric mechanism and an electrode wire. It effectively solves the problem of uneven coating due to the concentration difference of the electroplating solution in the coupling of the oil well pipe, thereby enhancing the electroplating effect.

In order to solve the above technical problems, the technical solution adopted by the present invention is: an electroplating device for the inner surface of the oil well pipe coupling, which is characterized in that it includes an electroplating table, an electrode wire, a stirring mechanism, and is used to drive the stirring mechanism to rotate The electric motor mechanism, the stirring mechanism includes a stirring support set on the electroplating table and a rotating fan blade extending into the coupling of the oil well pipe, the stirring support is connected with a rotating head, and the rotating fan blade includes a rotor and a plurality of movable Remove the electrode blades installed on the rotor, the rotating head and the rotor are connected through a rotating rod, the rotating rod is a telescopic rod, the electric mechanism includes a controller, and the input terminal of the controller is connected with a power module and a switch A control module, the output terminal of the controller is connected with a lifting motor for driving the rotating rod up and down and a rotating motor for driving the rotating head to rotate, the input terminal of the controller is connected with the electrode wire, and the The output end of the power module is connected with the electrode lead, the electrode blades and the rotating rod are conductor structures, the electrode lead includes a positive lead and a negative lead, the positive lead is electrically connected to the rotating rod, and the negative lead is connected to the oil well Pipe coupling electrical connection.

The above-mentioned electroplating device for the inner surface of the oil well pipe coupling is characterized in that: the included angle between the electrode blade and the rotation axis of the rotor is 30°-60°.

The above-mentioned electroplating device for the inner surface of the oil well pipe collar is characterized in that the distance between the tail end of the electrode blade and the inner surface of the oil well pipe collar is 20mm-40mm.

The above-mentioned electroplating device for the inner surface of the oil well pipe coupling is characterized in that the switch control module includes a hand-held control module and a fixed control module arranged on the electroplating table.

The above-mentioned electroplating device for the inner surface of the oil well pipe coupling is characterized in that the electrode blades are copper electrode turbine blades.

The above-mentioned electroplating device for the inner surface of the oil well pipe coupling is characterized in that the rotating rod is a copper rod.

Compared with the prior art, the present invention has the following advantages:

1. The structure of the present invention is simple, the design is reasonable, and the realization, use and operation are convenient.

2. The present invention is equipped with a stirring mechanism and an electric mechanism, and the electric mechanism is used to drive the electrode blades to rotate during the electroplating process, which effectively eliminates the concentration difference of the electroplating solution in the oil well pipe coupling, so that the electroplating process will not cause the flow of the electroplating solution to be disturbed State, thereby enhancing the electroplating effect, making the coating more smooth and uniform, and has a simple structure, convenient operation, and strong implementability.

3. The present invention is equipped with electrode wires, the electrode blades inserted into the electroplating solution are positively charged, and the oil well pipe coupling is negatively charged, so that the electroplating solution is used as an anode, and the oil well pipe coupling is used as a cathode, and the metal cations in the electroplating solution are deposited on the oil well pipe. The inner surface of the coupling is reduced to form a plating layer, completing the electroplating process.

To sum up, the present invention has a simple structure and reasonable design. It is equipped with a stirring mechanism, an electric mechanism and electrode wires, which effectively solves the problem of uneven plating caused by the concentration difference of the plating solution in the oil well pipe coupling, thereby enhancing the plating effect. The utility model has the advantages of convenient use and operation, strong practicability, good use effect and convenient popularization and use.

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a circuit principle block diagram of the present invention.

Fig. 3 is a microscopic topography diagram of the inner surface of the oil well pipe coupling after electroplating.

Explanation of reference signs:

1—Electroplating station; 2—Oil well pipe coupling; 3—Electrode blade;

4—rotor; 5—rotating rod; 6—rotating head;

7—stirring bracket; 8—fixed control module; 9—handheld control module;

10—controller; 11—power module; 12—lifting motor;

13—rotating motor; 14—electrode wire.

detailed description

As shown in Figures 1 and 2, the present invention includes an electroplating station 1, an electrode wire 14, a stirring mechanism, an electric mechanism for driving the stirring mechanism to rotate, and the stirring mechanism includes a stirring support 7 arranged on the electroplating station 1 And the rotating fan blade extending into the oil well pipe collar 2, the stirring bracket 7 is connected with the rotating head 6, the rotating fan blade includes a rotor 4 and a plurality of electrode blades 3 detachably installed on the rotor 4, the The rotating head 6 is connected to the rotor 4 through a rotating rod 5. The rotating rod 5 is a telescopic rod. The electric mechanism includes a controller 10. The input terminal of the controller 10 is connected with a power supply module 11 and a switch control module. The output terminal of the controller 10 is connected with a lifting motor 12 for driving the rotating rod 5 up and down and a rotating motor 13 for driving the rotating head 6 to rotate, and the input terminal of the controller 10 is connected with the electrode wire 14 , the output end of the power module 11 is connected to the electrode wire 14, the electrode blade 3 and the rotating rod 5 are conductive structures, the electrode wire 14 includes a positive electrode wire and a negative electrode wire, and the positive electrode wire and the rotating rod 5 Electrically connected, the negative lead wire is electrically connected to the oil well pipe collar 2.

In this embodiment, the electrode blade 3 is a copper electrode turbine blade, and the electrode blade 3 is used to replace the traditional electrode sheet, which can not only play the role of electrolysis, but also play the role of stirring, the design is reasonable, and it is easy to use. The rotating rod 5 is a copper rod, and the oil well pipe collar 2 is a TC4 titanium alloy oil well pipe collar.

In actual use, the number of electrode blades 3 is 4-6, and different numbers can be selected according to actual conditions. The electrode blades 3 are evenly arranged along the circumference of the rotor 4 . The stirring support 7 includes a vertical support fixedly connected with the electroplating table 1 and a horizontal support fixedly connected with the vertical support, and the rotating head 6 is connected with one end of the horizontal support. The rotating rod 5 is a telescopic rod, and the length of the rotating rod 5 can be adjusted by adjusting the turning direction of the lifting motor 12, so that the electrode blades 3 are submerged in the electroplating solution. Copper electrode turbine blades and copper rods are connected to the power module through positive wires. Copper electrode turbine blades and copper rods are positively charged. Copper electrode turbine blades extend into the electroplating solution, making the electroplating solution an anode. Oil well pipe coupling 2 is connected through negative wires To the power module, the oil well pipe collar 2 is negatively charged, the oil well pipe collar 2 is used as the cathode, and the electroplating solution is an electroplating solution containing copper ions. The copper ions in the electroplating solution are reduced on the inner surface of the oil well pipe collar 2 to form a copper coating , to complete the copper plating process on the inner surface of the oil well pipe coupling 2 .

In this embodiment, the included angle between the electrode blades 3 and the rotational axis of the rotor 4 is 30°-60°.

In actual use, the angle between the electrode blade 3 and the rotation axis of the rotor 4 prevents the electrode blade 3 from causing eddy currents in the electroplating solution during rotation and stirring, and achieves the purpose of uniform stirring.

In this embodiment, the distance between the tail end of the electrode blade 3 and the inner surface of the oil well pipe collar 2 is 20mm-40mm.

In actual use, by limiting the distance between the tail end of the electrode blade 3 and the inner surface of the oil well pipe coupling 2, after the electrode blade 3 is energized, the charges are evenly distributed in the electroplating solution.

As shown in FIG. 2 , in this embodiment, the switch control module includes a hand-held control module 9 and a fixed control module 8 arranged on the electroplating station 1 .

In actual use, the hand-held control module 9 is connected to the controller 10 through wireless communication, and the fixed control module 8 is connected to the controller 10 through cables. Both the hand-held control module 9 and the fixed control module 8 include 5 keys such as a power switch, a rotation acceleration key, a rotation deceleration key, a lifting down key and a lifting up key, and the stirring control and the lifting control are realized by the 5 keys. Two control methods, handheld control and fixed control, are used to facilitate the staff to control the electroplating process under different working conditions. It is convenient to use, strong in practicability and good in use effect.

During specific implementation, after the oil well pipe coupling 2 has been degreased, activated, and pre-nickel-plated, the oil well pipe coupling 2 is placed on the electroplating table 1, and the position of the oil well pipe coupling 2 is adjusted so that the rotor 4 is located on the oil well pipe. In the middle of the coupling 2. Then, an electroplating solution containing copper ions is placed in the oil well pipe collar 2, so that the threads on the inner surface of the oil well pipe collar 2 are lower than the liquid level of the electroplating solution. Turn on the power switch in the hand-held control module 9 or the fixed control module 8, the controller 10 connects the power module 11, and the electrode leads 14 are charged. Through the lifting down key and the lifting up key, the controller 10 sends a control signal to the lifting motor 12, and the lifting motor 12 drives the lifting of the rotating rod 5, so that the height of the electrode blade 3 makes the electrode blade 3 submerged in the electroplating solution. The electroplating solution of ions is used as the anode, and the oil well pipe coupling 2 is used as the cathode. The copper ions in the electroplating solution are reduced on the inner surface of the oil well pipe coupling 2 to form a copper coating. The deceleration key, the controller 10 sends a control signal to the rotating motor 13, the rotating motor 13 drives the rotating head 6 to rotate, the rotating head 6 and the rotor 4 are connected through the rotating rod 5, thereby driving the electrode blade 3 to rotate in the electroplating solution, the electrode blade 3 The rotating speed is 60r/min, which achieves the function of stirring the electroplating solution, effectively eliminates the concentration difference of the electroplating solution in the oil well pipe coupling, so that the electroplating process will not appear in the turbulent state of the electroplating solution flow, thereby enhancing the electroplating effect until the oil well pipe is completed. Copper plating process on inner surface of coupling 2.

Fig. 3 is a microscopic topography diagram of the inner surface of the oil well pipe coupling after electroplating. It can be seen from the figure that the copper plating layer of the oil well pipe coupling 2 is uniform, smooth and dense.

In this embodiment, after the threads on the inner surface of the copper-plated oil well pipe coupling 2 are made up ten times with a make-up torque of 4690N·m and ten times with a breakout torque of 4330N·m, the inner surface of the oil well pipe coupling 2 will The copper coating on the oil well pipe coupling 2 has not been damaged, the oil well pipe coupling 2 has no sticking, and the copper coating on the inner surface of the oil well pipe coupling 2 shows good wear resistance and good bonding force with the oil well pipe coupling 2 .

The above is only an embodiment of the present invention, and does not limit the present invention in any way. Any simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical essence of the present invention still belong to the technical solution of the present invention. within the scope of protection.

Claims (6)

1. a kind of electroplanting device for oil well pipe box cupling inner surface, it is characterised in that：Including plating station (1), electrode cable (14), rabbling mechanism, the motor drive mechanism for driving the rabbling mechanism rotation, the rabbling mechanism include being arranged on plating station (1) stirring support (7) on and the rotary fan stretched into oil well pipe box cupling (2), the stirring support (7) are connected with swivel head (6), the rotary fan includes rotor (4) and multiple electrode blades (3) being removably mounted on rotor (4), the rotation Head (6) is connected with rotor (4) by swingle (5), and the swingle (5) is expansion link, and the motor drive mechanism includes control Device (10) processed, the input of the controller (10) is terminated with power module (11) and switch control module, the controller (10) Output be terminated be used for drive the swingle (5) lift lifting motor (12) and for drive the swivel head (6) revolve The electric rotating machine (13) turned, the input of the controller (10) connects with electrode cable (14), the power module (11) Output end connects with electrode cable (14), and the electrode blade (3) and swingle (5) are conductor structure, the electrode cable (14) positive wire and cathode conductor are included, the positive wire is electrically connected with swingle (5), the cathode conductor and oil well pipe Box cupling (2) is electrically connected.

2. according to a kind of electroplanting device for oil well pipe box cupling inner surface described in claim 1, it is characterised in that：The electricity The angle of pole blade (3) and rotor (4) axial rotary is 30 °~60 °.

3. according to a kind of electroplanting device for oil well pipe box cupling inner surface described in claim 1, it is characterised in that：The electricity Distance is 20mm-40mm between the tail end of pole blade (3) and the inner surface of oil well pipe box cupling (2).

4. according to a kind of electroplanting device for oil well pipe box cupling inner surface described in claim 1, it is characterised in that：It is described to open Closing control module includes hand-held control module (9) and the fixed control module (8) being arranged in plating station (1).

5. according to a kind of electroplanting device for oil well pipe box cupling inner surface described in claim 1, it is characterised in that：The electricity Pole blade (3) is copper electrode turbo blade.

6. according to a kind of electroplanting device for oil well pipe box cupling inner surface described in claim 1, it is characterised in that：The rotation Bull stick (5) is copper bar.