Spraying device for ultra-long nickel alloy seamless steel pipe

Abstract

The utility model relates to a spraying device for a super-long nickel alloy seamless steel pipe, which comprises a rack, a paint spraying mechanism and two groups of traction mechanisms positioned on two sides of the paint spraying mechanism are arranged on the rack, the paint spraying mechanism comprises a paint spraying outer ring and a paint spraying inner ring, the paint spraying outer ring is fixedly connected onto the rack, and an outer paint conveying ring groove is formed in the inner circumferential surface of the paint spraying outer ring; the paint spraying inner ring is rotationally arranged on the inner side face of the paint spraying outer ring, an inner paint conveying annular groove aligned with the outer paint conveying annular groove is formed in the outer circumferential face of the paint spraying inner ring, a connecting pipe communicating with the outer paint conveying annular groove is fixedly connected to the outer circumferential face of the paint spraying outer ring, and a nozzle communicating with the inner paint conveying annular groove is fixedly connected to the inner circumferential face of the paint spraying inner ring. A transmission gear ring is fixedly connected to the side face of the inner paint spraying ring groove, a transmission worm meshed with the transmission gear ring is rotationally arranged on the rack, and the transmission worm is in transmission connection with a second motor arranged on the rack. According to the spraying device for the ultra-long nickel alloy seamless steel pipe, a better spraying effect can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of seamless steel pipe production, in particular to a spraying device for an ultra-long nickel alloy seamless steel pipe. Background Art

[0002] After forming, the nickel alloy seamless steel pipe will be sprayed with paint on its surface as needed to meet the needs of different usage scenarios. In order to improve efficiency and spraying effect, the spraying operation of nickel alloy seamless steel pipe is generally completed by a spraying device.

[0003] In the prior art, for example, the utility model patent: An efficient steel pipe spraying device (application number: 201922097890.3) discloses a steel pipe spraying device that drives the steel pipe to rotate one circle through a positioning component so that the paint spraying component can spray paint on the steel pipe, and the paint spraying is uniform and effective. In the above structure, the steel pipe needs to be driven to rotate when spraying paint. However, since the extra-long nickel alloy seamless steel pipe has a long length, when it is supported by the positioning components at both ends, the middle part will bend to a certain extent due to its own weight, affecting the concentricity of the steel pipe during rotation, thereby affecting the effect of spraying paint, and in order to adapt to the length of the steel pipe, the paint spraying component also needs to be set relatively long, which makes it difficult to control the uniformity of the paint, thereby affecting the effect of spraying paint.

[0004] In view of the above problems, the present invention makes improvements. Summary of the invention

[0005] The utility model provides a spraying device for an ultra-long nickel alloy seamless steel pipe, which solves the above-mentioned problems existing in the prior art during use.

[0006] The technical solution of the utility model is achieved in this way:

[0007] A spraying device for an extra-long nickel alloy seamless steel pipe comprises a frame, a paint spraying mechanism and two sets of traction mechanisms located on both sides of the paint spraying mechanism are arranged on the frame, the traction mechanism comprises a plurality of traction rollers rotatably arranged on the frame, adjacent traction rollers are connected to the synchronous belt through synchronous wheels, one of the traction rollers is connected to the first motor arranged on the frame, the paint spraying mechanism comprises a paint spraying outer ring and a paint spraying inner ring, the paint spraying outer ring is fixedly connected to the frame and an outer paint running ring groove is provided on the inner circumference of the paint spraying outer ring, the paint spraying inner ring rotates An inner paint running groove is arranged on the inner side surface of the paint spraying outer ring and the outer circumferential surface of the paint spraying inner ring is aligned with the outer paint running groove, the outer paint running groove and the inner paint running groove are assembled to form a paint running channel, a connecting pipe connected to the outer paint running groove is fixedly connected to the outer circumferential surface of the paint spraying outer ring, a nozzle connected to the inner paint running groove is fixedly connected to the inner circumferential surface of the paint spraying inner ring, a transmission gear ring is fixedly connected to the side surface of the paint spraying inner ring, a transmission worm gear meshing with the transmission gear ring is rotatably arranged on the frame, and the transmission worm gear is transmission-connected to a second motor arranged on the frame.

[0008] Preferably, an outer splicing convex ring is formed on each of the two side surfaces of the painted outer ring, and an inner splicing convex ring is formed on each of the two side surfaces of the painted inner ring, the outer circumferential surface of the painted inner ring is fitted on the inner circumferential surface of the painted outer ring so that the inner splicing convex ring fits with the outer splicing convex ring, the outer circumferential surface of the outer splicing convex ring and the inner circumferential surface of the inner splicing convex ring are respectively provided with an outer limiting ring groove and an inner limiting ring groove, and the outer splicing convex ring and the inner splicing convex ring are respectively covered with an outer fastening ring and an inner fastening ring, the outer fastening ring and the inner fastening ring are respectively formed with an outer limiting convex ring and an inner limiting convex ring placed in the outer limiting ring groove and the inner limiting ring groove, and the outer fastening ring and the inner fastening ring are fixed to the outer fastening ring by a plurality of bolts.

[0009] Preferably, a first sealing ring is provided between the outer fastening ring and the outer splicing convex ring, and a second sealing ring is provided between the inner fastening ring and the inner splicing convex ring.

[0010] Preferably, a positioning ring groove is provided on the outer circumferential surface of the painted inner ring, and a positioning convex ring matching the positioning ring groove and placed in the positioning ring groove is formed on the inner circumferential surface of the painted outer ring.

[0011] Preferably, a plurality of the nozzles are arranged in a circular array on the inner circumference of the paint spraying inner ring.

[0012] Preferably, a threaded sleeve is formed on the inner circumferential surface of the paint spray inner ring, the nozzle is threaded in the threaded sleeve, and a third sealing ring is provided between the nozzle and the inner circumferential surface of the paint spray inner ring.

[0013] Preferably, the frame is provided with a drying mechanism located between the paint spraying mechanism and the rear traction mechanism, the drying mechanism includes an electric heating tube and a fan, the electric heating tube is fixedly arranged on the frame, and the fan is fixedly arranged on the frame above the electric heating tube.

[0014] Preferably, a supporting roller is rotatably arranged on the frame between the paint spraying mechanism and the front traction mechanism and between the drying mechanism and the rear traction mechanism, and a sliding block is slidably arranged on one side of each end of the supporting roller on the frame, the upper end of the sliding block is rotatably connected to an adjusting screw threadedly connected to the frame, and the two ends of the supporting roller are rotatably connected to the two sliding blocks respectively.

[0015] To sum up, the beneficial effect of the utility model is that the traction mechanism smoothly transports the extra-long nickel alloy seamless steel pipe placed on the traction roller through the paint spraying inner ring, and the second motor drives the paint spraying inner ring through the cooperation of the transmission worm and the transmission gear ring to drive the nozzle to rotate around the steel pipe to spray the steel pipe, thereby ensuring the straightness of the sprayed area of ​​the steel pipe and reducing the volume of the spraying mechanism, making it easier to control the amount and speed of paint output, thereby achieving a better spraying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of another perspective of the utility model;

[0019] Figure 3 It is a cross-sectional schematic diagram of the paint spraying mechanism and the drying mechanism in the utility model;

[0020] Figure 4 for Figure 3 The enlarged schematic diagram of point A in the middle;

[0021] Figure 5 for Figure 4 The enlarged schematic diagram of point B in the middle;

[0022] Figure 6 This is a schematic diagram of the decomposition of the paint spraying mechanism in the utility model

[0023] Figure 7 This is a schematic diagram of the structure of the paint spraying outer ring in the utility model;

[0024] Figure 8 It is a structural schematic diagram of the paint spraying inner ring in the utility model.

[0025] In the figure: 1, frame; 2, traction mechanism; 21, traction roller; 22, first motor; 3, painting mechanism; 31, outer ring for painting; 311, outer ring groove for painting; 312, connecting pipe; 313, outer splicing convex ring; 314, outer limit ring groove; 315, positioning convex ring; 32, inner ring for painting; 321, inner ring groove for painting; 322, inner splicing convex ring; 323, inner limit ring groove; 324, positioning ring groove; 325, Screw-on sleeve; 326, third sealing ring; 33, nozzle; 34, transmission gear ring; 35, transmission worm; 36, second motor; 37, outer fastening ring; 371, outer limit convex ring; 372, first sealing ring; 38, inner fastening ring; 381, inner limit convex ring; 382, ​​second sealing ring; 4, drying mechanism; 41, electric heating tube; 42, fan; 51, support roller; 52, slider; 53, adjusting screw. DETAILED DESCRIPTION

[0026] The following will be combined with the attached embodiment of the utility model Figure 1-8 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] As shown in the figure, a spraying device for an ultra-long nickel alloy seamless steel pipe includes a frame 1, on which a paint spraying mechanism 3 and two groups of traction mechanisms 2 located on both sides of the paint spraying mechanism 3 are arranged, the traction mechanism 2 includes a plurality of traction rollers 21 rotatably arranged on the frame 1, and the adjacent traction rollers 21 are connected to the synchronous belt through a synchronous wheel, one of the traction rollers 21 is connected to the first motor 22 arranged on the frame 1, and the paint spraying mechanism 3 includes a paint spraying outer ring 31 and a paint spraying inner ring 32, the paint spraying outer ring 31 is fixedly connected to the frame 1, and an outer paint ring groove 311 is provided on the inner circumferential surface of the paint spraying outer ring 31, and the paint spraying inner ring 32 is rotatably arranged on the paint spraying An inner paint running groove 321 aligned with the outer paint running groove 311 is provided on the inner side surface of the outer ring 31 and the outer circumferential surface of the paint spraying inner ring 32, and the outer paint running groove 311 and the inner paint running groove 321 are combined to form a paint running channel, a connecting pipe 312 connected to the outer paint running groove 311 is fixedly connected to the outer circumferential surface of the paint spraying outer ring 31, a nozzle 33 connected to the inner paint running groove 321 is fixedly connected to the inner circumferential surface of the paint spraying inner ring 32, a transmission ring gear 34 is fixedly connected to the side surface of the paint spraying inner ring 32, a transmission worm 35 meshing with the transmission ring gear 34 is rotatably provided on the frame 1, and the transmission worm 35 is transmission-connected to a second motor 36 provided on the frame 1.

[0028] Specifically, the structure in which the inner painting ring 32 is rotatably disposed on the outer painting ring 31 is as follows:

[0029] An outer splicing convex ring 313 is formed on each of the two side surfaces of the painted outer ring 31, and an inner splicing convex ring 322 is formed on each of the two side surfaces of the painted inner ring 32. The outer circumferential surface of the painted inner ring 32 fits on the inner circumferential surface of the painted outer ring 31 so that the inner splicing convex ring 322 fits with the outer splicing convex ring 313. An outer limiting ring groove 314 and an inner limiting ring groove 323 are respectively provided on the outer circumferential surface of the outer splicing convex ring 313 and the inner circumferential surface of the inner splicing convex ring 322, and an outer fastening ring 37 and an inner fastening ring 38 are respectively covered on the outer splicing convex ring 313 and the inner splicing convex ring 322. The ring 37 and the inner fastening ring 38 are respectively provided with an outer limiting convex ring 371 and an inner limiting convex ring 381 which are placed in the outer limiting ring groove 314 and the inner limiting ring groove 323, and the outer fastening ring 37 and the inner fastening ring 38 are fixed by a plurality of bolts. In the above structure, the inner circumferential surface of the paint spraying outer ring 31 and the outer circumferential surface of the paint spraying inner ring 32 are kept in contact with each other through the cooperation of the outer fastening ring 37 and the inner fastening ring 38, so that the outer paint running ring groove 311 and the inner paint running ring groove 321 are kept in contact with each other to form a paint running channel, and the disassembly and assembly of the paint spraying inner ring 32 are facilitated, thereby facilitating the cleaning of the paint running channel during use.

[0030] In the above embodiment, the pipe 312 is connected to the paint supply equipment, and the extra-long nickel alloy seamless steel pipe (hereinafter referred to as the steel pipe) to be sprayed is placed on the traction roller 21 of the traction mechanism 2 located in the front. The first motor 22 cooperates with the synchronous belt and the synchronous wheel to drive the plurality of traction rollers 21 to rotate synchronously. The traction roller 21 drives the steel pipe to be transported toward the paint spraying mechanism 3 and passes through the paint spraying inner ring 32. When the steel pipe passes through the paint spraying inner ring 32, the second motor 36 drives the transmission worm 35 to rotate and drives the transmission gear ring 34 to rotate. The transmission gear ring 34 drives the paint spraying inner ring 32 to rotate on the paint spraying outer ring 31, thereby driving the nozzle 33 to rotate around the steel pipe. At the same time, the paint supplied by the paint supply equipment enters the outer ring 31 through the pipe 312. The paint passes through the paint ring groove 311 and enters the paint passage formed by the outer paint ring groove 311 and the inner paint ring groove 321. The paint entering the paint passage is sprayed out through the nozzle 33. The paint sprayed from the nozzle 33 cooperates with the rotation of the nozzle 33 around the steel pipe to evenly spray the paint on the outer surface of the steel pipe, and cooperates with the action of the steel pipe continuously passing through the inner ring 32 of the paint spraying to complete the spraying operation of the steel pipe. After the spraying operation is completed, the steel pipe is pulled by the traction mechanism 2 located at the rear and continues to be transported to the rear for subsequent unloading operations. The two groups of traction mechanisms 2 arranged before and after the paint spraying mechanism 3 ensure the stability of the steel pipe when passing through the inner ring 32 of the paint spraying, and also provide sufficient support for the steel pipe. Through the above structure and method, when the extra-long steel pipe is sprayed, the straightness of the sprayed area of ​​the steel pipe is guaranteed, and the volume of the spraying mechanism is reduced, which is convenient for controlling the amount and speed of paint output, thereby achieving a better spraying effect.

[0031] Preferably, a first sealing ring 372 is provided between the outer fastening ring 37 and the outer splicing convex ring 313, and a second sealing ring 382 is provided between the inner fastening ring 38 and the inner splicing convex ring 322. The first sealing ring 372 and the second sealing ring 382 respectively strengthen the sealing between the outer fastening ring 37 and the paint outer ring 31 and between the inner fastening ring 38 and the paint inner ring 32, thereby strengthening the sealing of the paint spraying mechanism 3 and ensuring stability during the spraying operation.

[0032] Preferably, a positioning ring groove 324 is formed on the outer circumferential surface of the paint spraying inner ring 32, and a positioning convex ring 315 matching the positioning ring groove 324 and placed in the positioning ring groove 324 is formed on the inner circumferential surface of the paint spraying outer ring 31. The cooperation between the positioning convex ring 315 and the positioning ring groove 324 facilitates the positioning of the paint spraying outer ring 31 when installing the paint spraying inner ring 32, so that the outer paint running groove 311 and the inner paint running groove 321 can be accurately assembled to form a paint running channel, and the positioning convex ring 315 cooperates with the positioning ring groove 324 to play a certain sealing role, thereby enhancing the sealing of the paint spraying mechanism 3 and ensuring the stability during the spraying operation.

[0033] Preferably, a plurality of the nozzles 33 are arranged in a circular array on the inner circumference of the paint spraying inner ring 32, and the plurality of nozzles 33 improves the efficiency of the spraying operation.

[0034] Preferably, a threaded sleeve 325 is formed on the inner circumferential surface of the paint spray inner ring 32, the nozzle 33 is threaded in the threaded sleeve 325, and a third sealing ring 326 is provided between the nozzle 33 and the inner circumferential surface of the paint spray inner ring 32. The above structure facilitates the disassembly and assembly of the nozzle 33, thereby facilitating the maintenance of the nozzle 33 during use.

[0035] Furthermore, the frame 1 is provided with a drying mechanism 4 located between the paint spraying mechanism 3 and the rear traction mechanism 2, and the drying mechanism 4 includes an electric heating tube 41 and a fan 42. The electric heating tube 41 is fixedly arranged on the frame 1, and the fan 42 is fixedly arranged on the frame 1 and located above the electric heating tube 41.

[0036] In the above preferred embodiment, the steel pipe that has been sprayed by the paint spraying mechanism 3 is driven by the traction mechanism 2 to pass under the electric heating tube 41. At the same time, the fan 42 works to convey air flow downward. The hot air flow formed after the air flow passes through the electric heating tube 41 is blown toward the surface of the steel pipe, which speeds up the drying speed of the paint, thereby improving the efficiency of the spraying operation.

[0037] Preferably, a supporting roller 51 is rotatably provided on the frame 1 between the paint spraying mechanism 3 and the front traction mechanism 2 and between the drying mechanism 4 and the rear traction mechanism 2. A sliding block 52 is slidably provided on one side of each end of the supporting roller 51 on the frame 1. The upper end of the sliding block 52 is rotatably connected with an adjusting screw 53 threadedly connected to the frame 1. The two ends of the supporting roller 51 are rotatably connected to the two sliding blocks 52 respectively. The supporting roller 51 supports the steel pipe when the steel pipe is sprayed, thereby ensuring the straightness of the pipe section of the steel pipe located in the paint spraying mechanism 3 and the drying mechanism 4, thereby ensuring the spraying effect. By rotating the adjusting screw 53 to drive the sliding block 52 and drive the support rod to slide longitudinally, it can be ensured that the supporting roller 51 and the steel pipe remain in contact, thereby ensuring the supporting effect of the supporting roller 51 on the steel pipe.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A spraying device for an ultra-long nickel alloy seamless steel pipe, comprising a frame (1), characterized in that: The frame (1) is provided with a paint spraying mechanism (3) and two groups of traction mechanisms (2) located on both sides of the paint spraying mechanism (3); the traction mechanism (2) comprises a plurality of traction rollers (21) rotatably arranged on the frame (1); adjacent traction rollers (21) are connected to a synchronous belt through a synchronous wheel, and one of the traction rollers (21) is connected to a first motor (22) arranged on the frame (1); the paint spraying mechanism (3) comprises a paint spraying outer ring (31) and a paint spraying inner ring (32); the paint spraying outer ring (31) is fixedly connected to the frame (1) and an outer paint running ring groove (311) is provided on the inner circumferential surface of the paint spraying outer ring (31); the paint spraying inner ring (32) is rotatably arranged on the inner side surface of the paint spraying outer ring (31) and the paint spraying inner ring (32) is connected to the inner side surface of the paint spraying outer ring (31). An inner paint running groove (321) aligned with the outer paint running groove (311) is formed on the outer circumferential surface of the spray paint outer ring (311), and the outer paint running groove (311) and the inner paint running groove (321) are combined to form a paint running channel. A pipe (312) communicating with the outer paint running groove (311) is fixedly connected to the outer circumferential surface of the spray paint outer ring (31), and a nozzle (33) communicating with the inner paint running groove (321) is fixedly connected to the inner circumferential surface of the spray paint inner ring (32). A transmission gear ring (34) is fixedly connected to the side surface of the spray paint inner ring (32), and a transmission worm (35) meshing with the transmission gear ring (34) is rotatably arranged on the frame (1), and the transmission worm (35) is drivingly connected to a second motor (36) arranged on the frame (1).

2. The spraying device for an ultra-long nickel alloy seamless steel pipe according to claim 1, characterized in that: An outer splicing convex ring (313) is formed on each of the two side surfaces of the painted outer ring (31), and an inner splicing convex ring (322) is formed on each of the two side surfaces of the painted inner ring (32). The outer circumferential surface of the painted inner ring (32) is fitted onto the inner circumferential surface of the painted outer ring (31) so that the inner splicing convex ring (322) fits with the outer splicing convex ring (313). The outer circumferential surface of the outer splicing convex ring (313) and the inner circumferential surface of the inner splicing convex ring (322) are respectively provided with an outer limiting ring groove. The outer splicing convex ring (313) and the inner splicing convex ring (322) are respectively covered with an outer fastening ring (37) and an inner fastening ring (38); the outer fastening ring (37) and the inner fastening ring (38) are respectively formed with an outer fastening convex ring (371) and an inner fastening convex ring (381) disposed in the outer limiting ring groove (314) and the inner limiting ring groove (323); and the outer fastening ring (37) and the inner fastening ring (38) are fixed by a plurality of bolts.

3. The spraying device for an ultra-long nickel alloy seamless steel pipe according to claim 2, characterized in that: A first sealing ring (372) is provided between the outer fastening ring (37) and the outer splicing convex ring (313), and a second sealing ring (382) is provided between the inner fastening ring (38) and the inner splicing convex ring (322).

4. The spraying device for an ultra-long nickel alloy seamless steel pipe according to claim 3, characterized in that: A positioning ring groove (324) is formed on the outer circumferential surface of the spray-painted inner ring (32), and a positioning convex ring (315) matching the positioning ring groove (324) and disposed in the positioning ring groove (324) is formed on the inner circumferential surface of the spray-painted outer ring (31).

5. The spraying device for an ultra-long nickel alloy seamless steel pipe according to claim 2, characterized in that: A plurality of the nozzles (33) are arranged in a ring array on the inner circumferential surface of the paint spraying inner ring (32).

6. The spraying device for an ultra-long nickel alloy seamless steel pipe according to claim 5, characterized in that: A threaded sleeve (325) is formed on the inner circumferential surface of the paint spray inner ring (32), the nozzle (33) is threaded in the threaded sleeve (325), and a third sealing ring (326) is provided between the nozzle (33) and the inner circumferential surface of the paint spray inner ring (32).

7. The spraying device for an ultra-long nickel alloy seamless steel pipe according to claim 1, characterized in that: The frame (1) is provided with a drying mechanism (4) located between the paint spraying mechanism (3) and the rear traction mechanism (2); the drying mechanism (4) comprises an electric heating tube (41) and a fan (42); the electric heating tube (41) is fixedly arranged on the frame (1); and the fan (42) is fixedly arranged on the frame (1) and located above the electric heating tube (41).

8. The spraying device for an ultra-long nickel alloy seamless steel pipe according to claim 7, characterized in that: A support roller (51) is rotatably provided on the frame (1) between the paint spraying mechanism (3) and the front traction mechanism (2) and between the drying mechanism (4) and the rear traction mechanism (2). A slider (52) is slidably provided on each side of the two ends of the support roller (51) on the frame (1). The upper end of the slider (52) is rotatably connected to an adjusting screw (53) screwed to the frame (1). The two ends of the support roller (51) are rotatably connected to the two sliders (52).

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