Sucker rod coupling mounting device

Abstract

The utility model discloses a sucker rod coupling installation device which comprises a box body, a servo motor and a chuck, the servo motor and the chuck are arranged on the two sides of the box body respectively, a transmission assembly is arranged in the box body, and the servo motor drives the chuck to rotate through the transmission assembly. The chuck is provided with at least three clamping jaws opposite to one side of the servo motor, the clamping jaws are evenly distributed on the periphery of the chuck in the circumferential direction, the clamping jaws are used for clamping a coupling, and a pressure maintaining unit is arranged on the top of the box body. The stable thrust to the coupling is kept all the time, the servo motor and the transmission assembly are matched, the coupling can be automatically screwed, it is guaranteed that the coupling is screwed in place, and the situation that oil leaks due to the fact that screwing is not in place when the coupling is manually installed or the coupling is damaged due to excessive screwing is avoided.

Description

Technical Field

[0001] The utility model relates to a sucker rod coupling assembly technology, in particular to a sucker rod coupling installation device. Background Art

[0002] As an indispensable and important component in the rod production system, the sucker rod coupling connects the sucker rods to each other, and a pair of friction pairs are formed between the sucker rod coupling and the oil pipe during the oil production process;

[0003] The existing method of installing a sucker rod coupling on a sucker rod is generally as follows: manually grab the sucker rod coupling and place the coupling on the end of the sucker rod, the worker provides thrust, and manually rotates the coupling to fix it on the end of the sucker rod. However, the thrust and tightening degree provided by the worker are extremely demanding on the worker's operating experience, and it is very easy for the coupling to be not screwed in place and cause oil leakage, or to be damaged by over-tightening. Utility Model Content

[0004] In order to solve the defects of the above-mentioned prior art, the utility model provides a sucker rod coupling installation device, which can always maintain a stable thrust and automatically screw the coupling to ensure that the coupling is screwed into place.

[0005] In order to achieve the above technical objectives, the utility model adopts the following technical solutions: a sucker rod coupling installation device, comprising a box, a servo motor and a chuck, the servo motor and the chuck are respectively arranged on both sides of the box, a transmission assembly is provided in the box, the servo motor drives the chuck to rotate through the transmission assembly, at least three clamping jaws are provided on the chuck relative to the side of the servo motor, the clamping jaws are evenly connected to the outer periphery of the chuck in a circumferential direction, and the clamping jaws are used to clamp the coupling.

[0006] Preferably, the transmission assembly includes a power shaft, a power gear, a driven gear and a main shaft, the power shaft is coaxially arranged with the output shaft of the servo motor, the servo motor is transmission-connected with the power shaft, the power gear is sleeved on the power shaft, the driven gear is meshed with the power gear, the driven gear and the power gear are located in the same plane, the driven gear is sleeved on the main shaft, and one end of the main shaft extends out of the box and is coaxially arranged with the chuck.

[0007] Preferably, the clamping jaws are pneumatic clamping jaws, and an air vent is provided on the outer periphery of the chuck, and the air vent connects the pneumatic clamping jaws and an external air source.

[0008] Preferably, a limiting hole is provided at the center of the chuck, and the inner diameter of the limiting hole is greater than or equal to the outer diameter of the coupling.

[0009] Preferably, a guide rail is provided on the top of the box body, and the guide rail is provided with two guide blocks. The guide block close to the servo motor is fixed to the box body and connected to the manipulator, and the other guide block is slidably fitted in the guide rail, and a spring is provided between the two guide blocks.

[0010] In summary, the utility model has achieved the following technical effects:

[0011] The sucker rod coupling installation device of the utility model adopts a pressure-maintaining unit, which can always maintain a stable thrust on the coupling when screwing the coupling, and cooperates with a servo motor and a transmission component to automatically screw the coupling to ensure that the coupling is screwed into place, thereby avoiding the situation where the coupling is not screwed into place and causing oil leakage or over-screwing and causing damage to the coupling due to manual installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the sucker rod coupling installation device of the utility model;

[0013] Figure 2 It is a cross-sectional view of the sucker rod coupling installation device of the utility model;

[0014] Explanation of the reference numerals in the drawings in the specification: 1. housing; 2. servo motor; 3. spindle; 4. chuck; 5. clamping jaw; 6. guide block; 7. guide rail; 8. power shaft; 9. power gear; 10. driven gear. DETAILED DESCRIPTION

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0016] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0018] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0019] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0021] Embodiment 1:

[0022] like Figure 1As shown in Figure 2, a sucker rod coupling installation device comprises a box body 1, a servo motor 2 and a chuck 4, wherein the servo motor 2 and the chuck 4 are respectively arranged on both sides of the box body 1, a transmission assembly is arranged in the box body 1, and the servo motor 2 drives the chuck 4 to rotate through the transmission assembly, and at least three clamping claws 5 are arranged on the side of the chuck 4 relative to the servo motor 2, and the clamping claws 5 are evenly connected to the outer periphery of the chuck 4 in the circumferential direction, and the clamping claws 5 are used to clamp the coupling, and a pressure holding unit is arranged on the top of the box body 1; the transmission assembly comprises a power shaft 8, a power gear 9, a driven gear 10 and a main shaft 3, and the power shaft 8 is connected to the servo motor 2. The output shaft of the machine 2 is coaxially arranged, the servo motor 2 is transmission-connected with the power shaft 8, the power gear 9 is sleeved on the power shaft 8, the driven gear 10 is meshed with the power gear 9, the driven gear 10 and the power gear 9 are located in the same plane, the driven gear 10 is sleeved on the main shaft 3, one end of the main shaft 3 extends out of the box body 1 and is coaxially arranged with the chuck 4; the pressure holding unit includes a guide rail 7, and the guide rail 7 is provided with two guide blocks 6. The guide block 6 close to the servo motor 2 of the two guide blocks 6 is fixed to the box body 1 and connected to the manipulator, and the other guide block 6 is slidably matched with the guide rail 7, and a spring is provided between the two guide blocks 6.

[0023] The sucker rod coupling installation device of the present embodiment adopts a pressure-maintaining unit, which can always maintain a stable thrust on the coupling when screwing it, and cooperates with the servo motor 2 and the transmission assembly to automatically screw the coupling to ensure that the coupling is screwed into place, thereby avoiding the situation where the coupling is not screwed into place due to manual installation, resulting in oil leakage, or excessive screwing, resulting in damage to the coupling.

[0024] Bearings are arranged at both ends of the main shaft 3, the outer wall of the bearing is fixed to the box body 1, and the inner wall of the bearing and the sleeve are fixed to the main shaft 3. Bearings are also arranged at both ends of the power shaft 8, the outer wall of the bearing is fixed to the box body 1, and the inner wall of the bearing and the sleeve are fixed to the power shaft 8; the driven gear 10 is locked to the main shaft 3 by a locking nut, the locking nut is threadedly matched with the main shaft 3, and the driving gear is fixed to the power shaft 8 by a spline.

[0025] The clamping jaws 5 are pneumatic clamping jaws 5 , and an air vent is provided on the outer periphery of the chuck 4 , and the air vent is connected to the pneumatic clamping jaws 5 and an external air source.

[0026] A limiting hole is provided at the center of the chuck 4 , and the inner diameter of the limiting hole is greater than or equal to the outer diameter of the coupling. The setting of the limiting hole can accommodate the coupling, pre-support the coupling, prevent the coupling from being skewed, and is more conducive to the clamping of the clamping jaws 5 .

[0027] Working principle: the manipulator moves the entire device so that the chuck 4 is aligned with the coupling, the coupling enters the limiting hole, and the jaws 5 clamp the coupling through ventilation. Then the manipulator aligns the coupling with the end of the sucker rod, and presses the coupling against the sucker rod, and increases the distance between the two guide blocks 6. At this time, the spring stretches to provide thrust. Since the spring provides a relatively stable thrust, the controllability is greatly increased, which can ensure the consistency of the docking of multiple groups of couplings with the sucker rod. The servo motor 2 works, drives the chuck 4 and the coupling to rotate through the transmission assembly, and automatically screws the coupling to ensure that the coupling is screwed into place.

[0028] The above description is only a preferred implementation mode of the present invention, and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A sucker rod coupling installation device, characterized in that: It includes a box body, a servo motor and a chuck, wherein the servo motor and the chuck are respectively arranged on both sides of the box body, a transmission assembly is arranged in the box body, and the servo motor drives the chuck to rotate through the transmission assembly, and at least three clamping claws are arranged on the side of the chuck relative to the servo motor, and the clamping claws are evenly connected to the outer periphery of the chuck in the circumference, and the clamping claws are used to clamp the coupling, and a pressure maintaining unit is arranged on the top of the box body.

2. A sucker rod coupling installation device according to claim 1, characterized in that: The transmission assembly includes a power shaft, a power gear, a driven gear and a main shaft. The power shaft is coaxially arranged with the output shaft of the servo motor. The servo motor is transmission-connected with the power shaft. The power gear is sleeved on the power shaft. The driven gear is meshed with the power gear. The driven gear and the power gear are located in the same plane. The driven gear is sleeved on the main shaft. One end of the main shaft extends out of the box and is coaxially arranged with the chuck.

3. A sucker rod coupling installation device according to claim 1, characterized in that: The clamping jaws are pneumatic clamping jaws, and an air vent is arranged on the outer periphery of the chuck, and the air vent is connected with the pneumatic clamping jaws and an external air source.

4. The sucker rod coupling installation device according to claim 1, characterized in that: A limiting hole is provided at the center of the chuck, and the inner diameter of the limiting hole is greater than or equal to the outer diameter of the coupling.

5. The sucker rod coupling installation device according to claim 1, characterized in that: The pressure-maintaining unit comprises a guide rail, which is provided with two guide blocks. The guide block close to the servo motor is fixed to the box body and connected to the manipulator, and the other guide block is slidably matched with the guide rail, and a spring is provided between the two guide blocks.

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