Device for uniformly spraying primer on surface of petroleum drill rod

Abstract

The utility model discloses a petroleum drill rod surface primer uniform spraying device which comprises a suspended ceiling track, a plurality of movable bases are assembled on the suspended ceiling track, the suspended ceiling track and the movable bases move through a control mechanism, the petroleum drill rod surface primer uniform spraying device further comprises a paint spraying operation room, and the suspended ceiling track passes through the paint spraying operation room. A hoisting control structure is arranged between the movable base and the suspended ceiling track; the utility model relates to the technical field of drill rod paint spraying, in particular to a device for uniformly spraying primer on the surface of a petroleum drill rod, the scraping of a roll shaft is thoroughly avoided through rotary spraying of a suspended drill rod, single-time full coverage of the drill rod is realized through matching of double lifting spray guns and staggered atomization, and an over-sprayed paint mist closed-loop recovery system is formed by matrix recovery holes and a dip angle guide plate. And in combination with accurate positioning of the movable base, the efficiency is greatly improved while traditional horizontal spraying defects are eliminated, and the device is particularly suitable for high-quality coating of the long drill rod.

Description

Technical Field

[0001] This utility model relates to the field of drill pipe painting technology, specifically to a device for uniformly spraying primer onto the surface of oil drill pipes. Background Technology

[0002] In modern oil extraction, in order to protect the surface of the drill pipe from corrosion and scratches, it is necessary to spray a primer on the surface of the drill pipe. At present, machine painting is mostly used for the surface painting of oil drill pipes. Machine painting is not only simple to operate, but also has a good painting effect.

[0003] Current drilling rod surface painting machines mainly consist of a conveying system, a control system, and a spraying system. The current drilling rod spraying system mainly uses axial horizontal conveying to spray the drilling rod. However, with this axial spraying method, the paint on the drilling rod needs to cure quickly, otherwise it will be scraped off by the rollers of the conveying system. Moreover, the amount of paint per unit area of ​​the drilling rod is small, resulting in low spraying efficiency. In view of this, in-depth research was conducted to address the above problems, which led to this case. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a device for uniformly spraying primer onto the surface of oil drill pipes, thus solving the problems in the prior art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a uniform primer spraying device for oil drill pipe surface, including a ceiling track, on which a plurality of movable bases are mounted, the ceiling track and the movable bases are moved by a control mechanism, and also including a spraying operation room, through which the ceiling track passes, and a hoisting control structure is provided between the movable bases and the ceiling track;

[0006] The painting operation room is equipped with a pair of sprayers, which are arranged alternately on both sides of the painting operation room.

[0007] The hoisting control structure includes a positioning seat, on which a plurality of connecting bolts are provided, and on which a plurality of positioning holes are provided corresponding to the plurality of connecting bolts, the plurality of connecting bolts passing through the plurality of positioning holes, and the plurality of positioning nuts being threadedly connected to the plurality of connecting bolts.

[0008] The hoisting control structure also includes a connecting seat, on which the connecting seat is movably mounted. A control motor is provided on the positioning seat, and a gear set is provided on the drive end of the control motor to link with the connecting seat. The connecting seat has a threaded structure and is connected to one end of the drill rod.

[0009] Preferably, the positioning seat has a support seat at its center, the support seat has an inverted T-shaped structure, and the connecting seat is nested and connected to the support seat.

[0010] Preferably, a pair of lifting controllers are provided on both sides of the painting operation room, and a pair of sprayers are mounted on the pair of lifting controllers.

[0011] Preferably, the bottom surface of the paint spraying room is provided with a paint recycling plate, and the paint recycling plate is provided with a plurality of recycling holes arranged in a matrix.

[0012] Preferably, the control mechanism includes a traveling motor, the traveling motor is mounted on the movable base, the driving end of the traveling motor is connected to a driving gear, and a guide rack is mounted on the ceiling track to mesh with the driving gear. Beneficial effects

[0013] This invention provides a device for uniformly spraying primer onto the surface of oil drill pipes. It offers the following advantages: This device completely avoids roller abrasion by suspending and rotating the drill pipe for spraying; dual lifting spray guns combined with staggered atomization achieve full coverage of the drill pipe in a single pass; a matrix of recovery holes and an inclined guide plate form a closed-loop paint mist recovery system; and combined with precise positioning using a moving base, it significantly improves efficiency while eliminating the defects of traditional horizontal spraying, making it particularly suitable for high-quality coating of long drill pipes. Attached Figure Description

[0014] Figure 1 This is a first three-dimensional structural diagram of the uniform primer spraying device for oil drill pipe surface described in this utility model.

[0015] Figure 2 This is a second three-dimensional structural diagram of the uniform primer spraying device for the surface of the oil drill pipe described in this utility model.

[0016] Figure 3 This is a third-dimensional structural diagram of the uniform spraying device for the surface primer of the oil drill pipe described in this utility model.

[0017] In the diagram: 1. Ceiling track; 2. Movable base; 3. Spray painting control room; 4. Sprayer; 5. Positioning seat; 6. Connecting bolt; 7. Positioning nut; 8. Connecting seat; 9. Control motor; 10. Gear set; 11. Guide rack; 12. Lifting controller; 13. Paint recycling plate; 14. Control motor; 15. Drive gear. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This utility model provides an implementation scheme: the current drill rod spraying system mainly sprays the drill rod by axial horizontal conveying. However, with this axial travel spraying method, the paint on the drill rod needs to be cured quickly, otherwise it will be scraped off by the rollers of the conveying system. Moreover, the amount of paint per unit area of ​​the drill rod is small, resulting in low spraying efficiency.

[0020] To address the aforementioned issues, this application discloses a device for uniformly spraying primer on the surface of oil drill pipes. This device innovates the process flow through a three-dimensional hoisting and rotary spraying mode. Specifically, it includes a ceiling track 1 spanning above the painting operation room 3. A movable base 2 mounted on the ceiling track 1 is precisely positioned by a control mechanism (a travel motor drives a drive gear 15 that meshes with a track rack). The movable base 2 drives the drill pipe to travel through the painting operation room 3, and the painting operation room 3 is used to spray paint the drill pipe.

[0021] Furthermore, according to the instruction manual appendix Figure 1-3 It can be seen that the drill rod is suspended below the aforementioned mobile base 2 by a hoisting control structure: the positioning seat 5 is fastened to the positioning hole of the base by connecting bolts 6, and the inverted T-shaped support seat at its bottom and the connecting seat 8 are nested to form an anti-torsion structure; the threaded joint at the end of the connecting seat 8 is rigidly connected to the end of the drill rod, and the control motor 149 on the positioning seat 5 drives the connecting seat 8 to drive the drill rod to rotate at a constant speed of 120 revolutions per minute through the gear set 10.

[0022] According to the instruction manual Figure 1-3 It is known that a pair of sprayers 4 are installed in the painting operation room 3, and the pair of sprayers 4 are arranged alternately on both sides of the painting operation room 3. When the hoisted drill rod is moved horizontally into the painting operation room 3, the sprayers 4 arranged alternately on both sides will move up and down reciprocally under the action of the lifting controller 12, thereby driving the sprayers 4 to move up and down to cover the entire range of the drill rod painting.

[0023] The hoisting control structure includes a positioning seat 5, on which several connecting bolts 6 are provided. The movable base 2 is provided with several positioning holes corresponding to the several connecting bolts 6. The several connecting bolts 6 pass through the several positioning holes, and several positioning nuts 7 are threadedly connected to the several connecting bolts 6. A connecting seat 8 is movably installed on the positioning seat 5. A control motor 149 is provided on the positioning seat 5. A gear set 10 is provided on the drive end of the control motor 149 and is linked with the connecting seat 8. The connecting seat 8 is a threaded structure and is connected to one end of the drill rod.

[0024] In the specific implementation process, one end of the drill rod has a threaded groove. During painting, the motor 149 drives the gear 15 group 10 to link with the connecting seat 8, thereby connecting the connecting seat 8 to the end of the drill rod. The positioning seat 5, as the installation base of the connecting seat 8, is separately connected to the movable base 2. Specifically, the positioning seat 5 is fixed by the cooperation of the connecting bolt 6 and the positioning nut 7. In order to completely cover the drill rod during spraying, the two sprayers 4 evenly spray the primer onto the surface of the drill rod in a cross pattern during the rotation of the drill rod. The atomization pressure is 0.5MPa. During rotation, the full circumference can be sprayed in one pass. The matrix-arranged recycling holes on the paint recycling plate 13 collect the sprayed paint mist and circulate it to the paint storage tank through the negative pressure pipeline to improve the recycling rate.

[0025] As a preferred option, the positioning seat 5 is further provided with a support seat at its center. The support seat has an inverted T-shaped structure. The connecting seat 8 is nested with the support seat. The interference fit between the T-shaped shoulder and the groove effectively suppresses the swing of the drill rod.

[0026] As a preferred option, a pair of lifting controllers 12 are installed on both sides of the painting operation room 3. The vertical stroke of the sprayer 4±200mm is achieved by driving the lead screw with a servo motor. The lifting controllers 12 control the passage of the drill rod.

[0027] As a preferred option, the inclined guide surface of the paint recovery plate 13 has an angle of not less than 5° to guide the paint liquid to the central recovery port and avoid residue.

[0028] As a preferred option, further according to the appendix to the instruction manual... Figure 1-3 It is known that the control mechanism includes a traveling motor. The traveling motor is installed on the mobile base 2. The driving end of the traveling motor is connected to a driving gear 15. A guide rack 11 is installed on the ceiling track 1 and meshes with the driving gear 15. The traveling motor drives the driving gear 15 to rotate, thereby causing the driving gear 15 to mesh with the guide rack 11, and thus causing the mobile base 2 to move. The driving gear 15 of the control mechanism is made of nylon-coated steel and meshes with a stainless steel rack for transmission. The operating noise is <65dB.

[0029] In summary, this uniform primer spraying device for oil drill pipes completely avoids roller rubbing by suspending and rotating the drill pipe for spraying. The dual lifting spray guns, combined with staggered atomization, achieve full coverage of the drill pipe in a single pass. The matrix recovery holes and the inclined guide plate form a closed-loop recovery system for overspray mist. Combined with the precise positioning of the movable base 2, it eliminates the defects of traditional horizontal spraying while significantly improving efficiency. It is particularly suitable for high-quality coating of long drill pipes.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for uniformly spraying primer onto the surface of oil drill pipe, comprising a suspended track (1), wherein a plurality of movable bases (2) are mounted on the suspended track (1), and the suspended track (1) and the movable bases (2) are moved by a control mechanism, characterized in that, It also includes a paint spraying room (3), the ceiling track (1) passes through the paint spraying room (3), and a hoisting control structure is provided between the movable base (2) and the ceiling track (1); A pair of sprayers (4) are provided in the spray painting operation room (3), and the pair of sprayers (4) are arranged alternately on both sides of the spray painting operation room (3); The hoisting control structure includes a positioning seat (5), a plurality of connecting bolts (6) are provided on the positioning seat (5), a plurality of positioning holes are provided on the movable base (2) corresponding to the plurality of connecting bolts (6), the plurality of connecting bolts (6) pass through the plurality of positioning holes, and a plurality of positioning nuts (7) are threaded on the plurality of connecting bolts (6). The hoisting control structure also includes a connecting seat (8). The connecting seat (8) is movably installed on the positioning seat (5). The positioning seat (5) is provided with a control motor (14) (9). The drive end of the control motor (14) (9) is provided with a gear set (10) that is linked with the connecting seat (8). The connecting seat (8) is a threaded structure connected to one end of the drill rod.

2. The device for uniformly spraying primer on the surface of oil drill pipe according to claim 1, characterized in that, The center of the positioning seat (5) is provided with a support seat, which is an inverted T-shaped structure, and the connecting seat (8) is nested and connected to the support seat.

3. The device for uniformly spraying primer on the surface of oil drill pipe according to claim 2, characterized in that, A pair of lifting controllers (12) are provided on both sides of the painting operation room (3), and a pair of sprayers (4) are mounted on the pair of lifting controllers (12).

4. The device for uniformly spraying primer onto the surface of oil drill pipe according to claim 3, characterized in that, The bottom surface of the paint spraying operation room (3) is provided with a paint recycling plate (13), and the paint recycling plate (13) is provided with a number of recycling holes in a matrix.

5. The device for uniformly spraying primer on the surface of oil drill pipe according to claim 4, characterized in that, The control mechanism includes a traveling motor. The traveling motor is installed on the mobile base (2). The driving end of the traveling motor is connected to a driving gear (15). A guide rack (11) is installed on the ceiling track (1) and meshes with the driving gear (15).

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