Automatic paint spraying equipment for oil casing coupling

Abstract

The utility model discloses automatic paint spraying equipment for an oil casing coupling, which relates to the technical field of paint spraying equipment, and comprises a rotating device, a first shielding device, a second shielding device and a paint spraying device, the rotating device is used for bearing an oil casing assembly and driving the oil casing assembly to rotate by taking the axis of the oil casing assembly as a rotating shaft; the first shielding device is used for shielding a protective plug of an oil sleeve assembly on the rotating device, the second shielding device is used for shielding an oil sleeve of the oil sleeve assembly on the rotating device, and the paint spraying device is used for linearly moving in the axial direction of the oil sleeve assembly and spraying paint on a coupling of the rotating oil sleeve assembly. According to the automatic paint spraying equipment for the oil casing coupling, automatic paint spraying of the coupling is achieved, uniformity of paint spraying on the surface of the coupling is guaranteed, paint can be effectively prevented from being sprayed to a protective plug and an oil casing, labor intensity is greatly reduced, and working efficiency and paint spraying quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of paint spraying equipment, in particular to an automatic paint spraying equipment for oil casing couplings. Background Art

[0002] Oil casing, also known as petroleum casing, is mainly used to support the well wall during drilling and after completion to ensure the progress of the drilling process and the normal operation of the entire oil well after completion.

[0003] After the oil casing and coupling are tightened, the coupling needs to be painted as required. Currently, the main painting methods are manual spraying or fixed nozzle spraying. Manual spraying is not only labor-intensive and inefficient, but also poses great health risks to workers due to long-term exposure to paint. Fixed nozzle spraying, due to the fixed nozzle position, requires manual adjustment of the coupling according to the nozzle position during painting. This makes it impossible to ensure that the paint film is evenly distributed on the coupling surface, resulting in uneven paint film thickness after painting. In addition, paint is easily sprayed onto the protective plugs of the oil casing and coupling during painting, requiring manual removal of excess paint on the protective plugs and the surface of the oil casing. This process is not only labor-intensive and inefficient, but also cannot guarantee the quality of the paint. Utility Model Content

[0004] In response to the above defects in the prior art, the utility model provides an automatic painting device for oil casing couplings, which realizes automatic painting of the couplings, not only ensuring the uniformity of the paint spraying on the coupling surface, but also effectively preventing the paint from being sprayed onto the protective plug and the oil casing, greatly reducing labor intensity and improving work efficiency and painting quality.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] An automatic painting device for an oil casing coupling is applied to an oil casing assembly, wherein the oil casing assembly includes a threaded oil casing and a coupling, and a protective plug sealed at the end of the coupling. The automatic painting device for the oil casing coupling includes a rotating device, a first shielding device, a second shielding device and a painting device. The rotating device is used to carry the oil casing assembly and drive the oil casing assembly to rotate about the axis of the oil casing assembly. The first shielding device is used to shield the protective plug of the oil casing assembly on the rotating device. The second shielding device is used to shield the oil casing of the oil casing assembly on the rotating device. The painting device is used to move linearly along the axial direction of the oil casing assembly and paint the rotating coupling.

[0007] Among them, the paint spraying device includes a workbench, a gear rack linear motion mechanism arranged on the workbench, a nozzle adjustment frame arranged on the gear rack linear motion mechanism, and a nozzle arranged on the nozzle adjustment frame, the gear rack linear motion mechanism is used to drive the nozzle to reciprocating linear motion, and the nozzle is used to spray paint the coupling.

[0008] Among them, the gear rack linear motion mechanism includes a rack fixedly set on the workbench, a rotating drive member slidably set on the workbench, and a gear set on the rotating drive member and meshing with the rack, and the nozzle adjustment frame is set on the rotating drive member.

[0009] Among them, the gear rack linear motion mechanism includes a rotating drive member fixedly arranged on the workbench, a gear arranged on the rotating drive member, and a rack slidably arranged on the workbench and meshing with the gear, and the nozzle adjustment frame is arranged on the rack.

[0010] Wherein, the workbench is provided with a detection device for detecting the paint spraying starting position and the paint spraying ending position of the spray head.

[0011] Among them, the first shielding device includes a shielding cover for shielding the protective block and a first linear motion driving component for driving the shielding cover to move horizontally back and forth linearly. A shielding cover adjustment frame is provided on the workbench, and the workbench is provided on the power output part of the first linear motion driving component. The shielding cover is rotatably provided on the shielding cover adjustment frame.

[0012] Among them, the second shielding device includes a shielding plate for shielding the oil casing and a second linear motion driving component for driving the shielding plate to vertically reciprocate linear motion. The shielding plate is arranged on the power output part of the second linear motion driving component, and an arc-shaped avoidance notch is provided on the shielding plate for avoiding the oil casing.

[0013] The automatic painting equipment for oil casing couplings further comprises a conveying device and a lifting device, wherein the rotating device is arranged on the lifting device, the conveying device is used to convey the oil casing assembly to the rotating device, and the lifting device is used to lift the rotating device to lift the oil casing assembly.

[0014] Wherein, the conveying device includes a conveying frame and a conveying roller arranged on the conveying frame, and the conveying roller is composed of a plurality of conveying rollers rotatably arranged on the conveying frame.

[0015] The rotating device includes a bracket arranged on the lifting device, and a plurality of rotating rollers arranged on opposite sides of the bracket and driven by a power device to rotate synchronously, and the axes of the rotating rollers are perpendicular to the axes of the conveying rollers.

[0016] By adopting the above technical solution, the beneficial effects of the utility model are:

[0017] The automatic painting equipment for oil casing couplings provided by the utility model carries the oil casing assembly through a rotating device, shields the protective plug of the oil casing assembly through a first shielding device, shields the oil casing of the oil casing assembly through a second shielding device, and then drives the oil casing assembly to rotate with the axis of the oil casing assembly as the rotation axis by the rotating device, and then the painting device moves linearly along the axial direction of the oil casing assembly and paints the rotating coupling, thereby realizing automatic painting of the coupling. Compared with the prior art, the automatic painting equipment for oil casing couplings provided by the utility model not only ensures the uniformity of paint spraying on the coupling surface, but also can effectively prevent paint from being sprayed onto the protective plug and the oil casing, thereby greatly reducing labor intensity and improving work efficiency and painting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of the utility model's automatic painting equipment for oil casing couplings;

[0019] Figure 2 This is another structural schematic diagram of the utility model's automatic painting equipment for oil casing couplings;

[0020] In the figure: 1. Oil casing; 2. Coupling; 3. Workbench; 31. Shielding cover adjustment frame; 4. Nozzle adjustment frame; 5. Nozzle; 6. Rack; 7. Rotary drive member; 8. Gear; 9. Slide rail; 10. Photoelectric switch; 11. Shielding cover; 12. First linear motion drive member; 13. Shielding plate; 14. Second linear motion drive member; 15. Conveyor roller; 16. Rotating roller. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0022] like Figure 1As shown, this embodiment discloses an automatic painting device for an oil casing coupling, which is applied to an oil casing assembly. The oil casing assembly includes a threaded oil casing 1 and a coupling 2, and a protective plug (not shown in the figure) sealed at the end of the coupling 2. The automatic painting device for the oil casing coupling includes a rotating device, a first shielding device, a second shielding device and a painting device. The rotating device is used to carry the oil casing assembly and drive the oil casing assembly to rotate with the axis of the oil casing assembly as the rotation axis. The first shielding device is used to shield the protective plug of the oil casing assembly on the rotating device, and the second shielding device is used to shield the oil casing 1 of the oil casing assembly on the rotating device. The painting device is used to move linearly along the axial direction of the oil casing assembly and paint the rotating coupling 2.

[0023] The automatic painting equipment for oil casing couplings provided in this embodiment carries the oil casing assembly through a rotating device, shields the protective plug of the oil casing assembly through a first shielding device, shields the oil casing 1 of the oil casing assembly through a second shielding device, and then drives the oil casing assembly to rotate with the axis of the oil casing assembly as the rotation axis by the rotating device, and then the painting device moves linearly along the axial direction of the oil casing assembly and paints the rotating coupling 2, thereby realizing automatic painting of the coupling 2, not only ensuring the uniformity of paint spraying on the surface of the coupling 2, but also effectively preventing paint from being sprayed onto the protective plug and the oil casing 1, greatly reducing labor intensity and improving work efficiency and painting quality.

[0024] The paint spraying device in this embodiment includes a workbench 3, a rack-and-pinion linear motion mechanism mounted on the workbench 3, a spray head adjustment frame 4 mounted on the rack-and-pinion linear motion mechanism, and a spray head 5 mounted on the spray head adjustment frame 4. The rack-and-pinion linear motion mechanism is used to drive the spray head 5 in reciprocating linear motion, and the spray head 5 is used to spray paint onto the butt collar 2. The rack-and-pinion linear motion mechanism drives the spray head 5 in linear reciprocating motion, thereby improving the linearity and stability of the spray head 5's motion and ensuring the accuracy of the spraying of paint onto the butt collar 2 by the spray head 5. The spray head adjustment frame 4 facilitates adjustment of the distance between the spray head 5 and the butt collar 2, thereby ensuring the quality of the paint sprayed by the spray head 5.

[0025] The rack and pinion linear motion mechanism in this embodiment includes a rack 6 fixedly set on the workbench 3, a rotating drive member 7 slidably set on the workbench 3, and a gear 8 set on the rotating drive member 7 and meshing with the rack 6. The nozzle adjustment frame 4 is set on the rotating drive member 7.

[0026] Of course, the gear rack linear motion mechanism can also be Figure 2 As shown in the configuration, the rack and pinion linear motion mechanism includes a rotary drive member 7 fixedly mounted on the workbench 3, a gear 8 mounted on the rotary drive member 7, and a rack 6 slidably mounted on the workbench 3 and meshing with the gear 8, and the nozzle adjustment frame 4 is mounted on the rack 6.

[0027] In order to ensure the linearity of the movement of the rotary drive member 7 or the rack 6 , in this embodiment, a slide rail 9 is provided on the workbench 3 , and the rotary drive member 7 or the rack 6 is provided on a slider of the slide rail 9 .

[0028] The rotary drive member 7 in this embodiment is preferably a motor, but of course a rotary cylinder can also be used. The specific selection is based on actual needs, and this embodiment does not limit this.

[0029] In this embodiment, a detection device for detecting the starting position and the ending position of the spraying of the spray head 5 is provided on the workbench 3. Such a setting improves the accuracy of the spraying of the spray head 5.

[0030] The detection device in this embodiment includes two photoelectric switches 10 arranged at intervals, wherein one photoelectric switch 10 is used to detect the starting position of painting, and the other photoelectric switch 10 is used to detect the ending position of painting.

[0031] The first shielding device in this embodiment includes a shielding cover 11 for shielding and blocking and a first linear motion driving component 12 for driving the shielding cover 11 to move horizontally back and forth linearly. A shielding cover adjustment frame 31 is provided on the workbench 3. The workbench 3 is set on the power output part of the first linear motion driving component 12, and the shielding cover 11 is rotatably set on the shielding cover adjustment frame 31.

[0032] Specifically, a support shaft is provided on the shielding cover adjustment frame 31, and the shielding cover 11 is rotatably set on the support shaft through a bearing. Such a setting facilitates the shielding cover 11 to rotate synchronously with the oil casing assembly. At the same time, in the process of the shielding cover 11 rotating synchronously with the oil casing assembly, the bearing reduces the friction coefficient of the shielding cover 11 during the rotation process, thereby ensuring the rotation accuracy of the shielding cover 11.

[0033] The first linear motion driving member 12 in this embodiment is preferably a telescopic cylinder. Of course, a telescopic electric cylinder or a telescopic hydraulic cylinder can also be used. The specific selection is based on actual needs and this embodiment does not limit this.

[0034] The second shielding device in this embodiment includes a shielding plate 13 for shielding the oil casing 1 and a second linear motion driving member 14 for driving the shielding plate 13 to vertically reciprocate linear motion. The shielding plate 13 is arranged on the power output part of the second linear motion driving member 14 and an arc-shaped avoidance gap is provided on the shielding plate 13 for avoiding the oil casing 1.

[0035] Specifically, the second linear motion drive member 14 is arranged on the bracket and is located above the rotating device. The baffle 13 is arranged on the power output part of the second linear motion drive member 14. The second linear motion drive member 14 in this embodiment is also preferably a telescopic cylinder. Of course, a telescopic electric cylinder or a telescopic hydraulic cylinder can also be used. The specific selection is made according to actual needs, and this embodiment does not limit this.

[0036] The automatic painting equipment for oil casing couplings in this embodiment also includes a conveying device and a lifting device. A rotating device is mounted on the lifting device. The conveying device is used to convey the oil casing assembly to the rotating device, and the lifting device is used to lift the rotating device to lift the oil casing assembly. This arrangement enables automatic conveying and lifting of the oil casing assembly, further improving work efficiency.

[0037] The conveying device in this embodiment includes a conveying frame and a conveying roller set on the conveying frame. The conveying roller is composed of a plurality of conveying rollers 15 rotatably set on the conveying frame.

[0038] In this embodiment, preferably all the conveying rollers 15 are driven by a motor, and the motor and all the conveying rollers 15 are connected via a belt transmission mechanism. Of course, they can also be connected via a chain transmission mechanism, which is not limited in this embodiment.

[0039] The lifting device in this embodiment adopts a telescopic hydraulic cylinder. Of course, a telescopic air cylinder can also be adopted. The specific selection is made according to actual needs, and this embodiment does not limit this.

[0040] The rotating device in this embodiment includes a bracket arranged on the lifting device, and a plurality of rotating rollers 16 arranged on opposite sides of the bracket and driven by a power device to rotate synchronously. The axis of the rotating roller 16 is perpendicular to the axis of the conveying roller 15.

[0041] The power device in this embodiment uses a motor. The multiple rotating rollers 16 located on one side of the bracket are arranged on the same transmission shaft, and the multiple rotating rollers 16 located on the other side of the bracket are arranged on another transmission shaft. The motor drives the two transmission shafts to rotate synchronously through a belt transmission mechanism or a chain transmission mechanism, thereby realizing the synchronous rotation of the multiple rotating rollers 16 on the opposite sides of the bracket, thereby driving the oil casing assembly to rotate.

[0042] Before use, adjust the positions of the two photoelectric switches 10 according to the specifications of the coupling 2 so that the distance between the two photoelectric switches 10 is equal to the length of the coupling 2; adjust the nozzle 5 into position by adjusting the nozzle adjustment frame 4 so that the nozzle 5 and the coupling 2 maintain an appropriate distance; adjust the shielding cover 11 into position by adjusting the shielding cover adjustment frame 31 so that the shielding cover 11 and the oil casing assembly that is lifted into position are on the same axis; select a shielding plate 13 that is compatible with the oil casing 1, and install it on the power output part of the second linear motion drive 14.

[0043] During use, the conveying device conveys the oil casing assembly to the rotating device, the lifting device lifts the rotating device to lift the oil casing assembly into place, the first linear motion drive member 12 drives the shielding cover 11 to move horizontally linearly so that the shielding cover 11 covers the protective blockage of the oil casing assembly, the second linear motion drive member 14 drives the shielding plate 13 to move vertically linearly so that the shielding plate 13 is inserted on the oil casing 1 and covers the oil casing 1, the rotating device drives the oil casing assembly to rotate with the axis of the oil casing assembly as the rotation axis, and the painting device moves linearly along the axial direction of the oil casing assembly and paints the rotating coupling 2.

[0044] The above is only one preferred embodiment of the automatic painting equipment for oil casing couplings of the present invention. There are many more embodiments that are not described here in detail. In summary, the automatic painting equipment for oil casing couplings of the present invention realizes the automatic painting of the coupling 2, which not only ensures the uniformity of the paint spraying on the surface of the coupling 2, but also effectively prevents the paint from being sprayed onto the protective plug and the oil casing 1, greatly reducing labor intensity and improving work efficiency and painting quality.

[0045] The present invention is not limited to the above-mentioned specific implementation methods. Various changes made by ordinary technicians in this field based on the above-mentioned conception without creative work are all within the scope of protection of the present invention.

Claims

1. An automatic painting device for oil casing couplings, applied to an oil casing assembly, wherein the oil casing assembly comprises an oil casing and a coupling connected by threads, and a protective plug sealing the end of the coupling, characterized in that: The automatic painting equipment for oil casing couplings includes a rotating device, a first shielding device, a second shielding device, and a painting device. The rotating device is used to carry the oil casing assembly and drive the oil casing assembly to rotate with the axis of the oil casing assembly as the rotation axis. The first shielding device is used to shield the protective plug of the oil casing assembly on the rotating device. The second shielding device is used to shield the oil casing of the oil casing assembly on the rotating device. The painting device is used to move linearly along the axial direction of the oil casing assembly and paint the rotating coupling.

2. The automatic painting equipment for oil casing coupling according to claim 1 is characterized in that: The paint spraying device includes a workbench, a gear rack linear motion mechanism arranged on the workbench, a nozzle adjustment frame arranged on the gear rack linear motion mechanism, and a nozzle arranged on the nozzle adjustment frame, the gear rack linear motion mechanism is used to drive the nozzle to reciprocating linear motion, and the nozzle is used to spray paint the coupling.

3. The automatic painting equipment for oil casing coupling according to claim 2 is characterized in that: The rack and pinion linear motion mechanism includes a rack fixedly arranged on the workbench, a rotating drive member slidably arranged on the workbench, and a gear arranged on the rotating drive member and meshing with the rack. The nozzle adjustment frame is arranged on the rotating drive member.

4. The automatic painting equipment for oil casing coupling according to claim 2 is characterized in that: The gear rack linear motion mechanism includes a rotary drive member fixedly arranged on the workbench, a gear arranged on the rotary drive member, and a rack slidably arranged on the workbench and meshing with the gear, and the nozzle adjustment frame is arranged on the rack.

5. The automatic painting equipment for oil casing coupling according to claim 2 is characterized in that: The workbench is provided with a detection device for detecting the paint spraying starting position and the paint spraying ending position of the spray head.

6. The automatic painting equipment for oil casing couplings according to claim 2 is characterized in that: The first shielding device includes a shielding cover for shielding the protective block and a first linear motion driving component for driving the shielding cover to move horizontally back and forth linearly. A shielding cover adjustment frame is provided on the workbench. The workbench is provided on the power output part of the first linear motion driving component, and the shielding cover is rotatably provided on the shielding cover adjustment frame.

7. The automatic painting equipment for oil casing coupling according to claim 1 is characterized in that: The second shielding device includes a shielding plate for shielding the oil casing and a second linear motion driving component for driving the shielding plate to perform vertical reciprocating linear motion. The shielding plate is arranged on the power output part of the second linear motion driving component, and an arc-shaped avoidance notch is provided on the shielding plate for avoiding the oil casing.

8. The automatic painting equipment for oil casing couplings according to any one of claims 1 to 7, characterized in that: The automatic painting equipment for oil casing couplings further includes a conveying device and a lifting device. The rotating device is arranged on the lifting device. The conveying device is used to convey the oil casing assembly to the rotating device. The lifting device is used to lift the rotating device to lift the oil casing assembly.

9. The automatic painting equipment for oil casing couplings according to claim 8, characterized in that: The conveying device includes a conveying frame and a conveying roller set on the conveying frame, and the conveying roller is composed of a plurality of conveying rollers rotatably set on the conveying frame.

10. The automatic painting equipment for oil casing couplings according to claim 9, characterized in that: The rotating device includes a bracket arranged on the lifting device, and a plurality of rotating rollers arranged on opposite sides of the bracket and driven by a power device to rotate synchronously, and the axes of the rotating rollers are perpendicular to the axes of the conveying rollers.

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