CN210632362U - Paint spraying device for butt joint of large-scale double-wall steel pipe column in water - Google Patents

Paint spraying device for butt joint of large-scale double-wall steel pipe column in water Download PDF

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Publication number
CN210632362U
CN210632362U CN201921082721.6U CN201921082721U CN210632362U CN 210632362 U CN210632362 U CN 210632362U CN 201921082721 U CN201921082721 U CN 201921082721U CN 210632362 U CN210632362 U CN 210632362U
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China
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semicircular ring
steel pipe
group
butt joint
drying
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CN201921082721.6U
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Chinese (zh)
Inventor
张春安
王静
田智鹏
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Cccc Highway Maintenance Engineering Technology Co ltd
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Cccc Highway Maintenance Engineering Technology Co ltd
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Abstract

The utility model relates to a large-scale double-walled steel-pipe column butt joint paint spraying apparatus in aquatic solves current steel-pipe column and needs spraying protective paint and latency longer after the welding, has great risk, the lower problem of staff work efficiency. The device comprises a left semicircular ring, a right semicircular ring, a tensioning assembly, a drying assembly and a spraying assembly; the left semicircular ring and the right semicircular ring seal and surround the contact surface of the upper steel pipe and the lower steel pipe; the two sides of the left semicircular ring are provided with left side lugs, and the two sides of the right semicircular ring are provided with right side lugs; the two groups of tensioning assemblies are respectively arranged on the left lug and the right lug and are used for circumferentially pressing the left lug and the right lug; the spraying component comprises a paint box, an air pump and a spray head; the paint box is connected with the spray head through an air pump; the drying component comprises a drying pipe, an electric heating wire, a fan and a driving source, the driving source drives the fan to rotate, and the electric heating wire is arranged on the drying pipe and located at an air outlet of the fan.

Description

Paint spraying device for butt joint of large-scale double-wall steel pipe column in water
Technical Field
The utility model relates to an open caisson equipment, concretely relates to large-scale double-walled steel-pipe column butt joint paint spraying apparatus of aquatic.
Background
The open caisson is a well cylindrical structural member, which is sunk in the well by digging soil, overcomes the frictional resistance of the well wall by the self gravity, then sinks to the designed elevation, and then is subjected to concrete bottom sealing and well hole filling, so that the open caisson becomes the foundation of bridge abutments or other structures. The construction method is generally used in foundation pits of large-scale piers, sewage pumping stations, large-scale equipment foundations, civil air defense shelters, shield assembly wells, underground driveways, station hydraulic foundation construction enclosure devices and the like.
In the existing steel pipe anticorrosion coating, after welding and detection of a steel pipe joint on site are finished, polishing is carried out to remove rust, then a zinc-aluminum coating is thermally sprayed, and then intermediate paint, finish paint and the like are coated, wherein the surface drying and actual drying interval requirements are met among all coatings. After finishing finish paint coating, the steel pipe column joint needs to wait for a long time because the finish paint is not dried, but the steel pipe column can not be put into water after waiting for a long time, and the steel pipe welding joint is easy to corrode in the external environment, thereby influencing the strength of the steel pipe welding position. In addition, after water is put into the steel pipe welding joint, the steel pipe welding joint is easy to corrode, the strength of the joint of the steel pipe welding joint is affected, the service life of the steel pipe column is shortened, great safety risks exist, and the working efficiency of workers is low.
SUMMERY OF THE UTILITY MODEL
Need spraying protective paint and latency longer for solving current steel-pipe column after the welding, have great risk and make the lower problem of staff work efficiency, the utility model provides a large-scale double-walled steel-pipe column butt joint paint spraying apparatus in aqueous.
In order to achieve the above object, the utility model discloses a following technical scheme realizes:
a paint spraying device for a butt joint of a large-scale double-wall steel pipe column in water comprises a left semicircular ring, a right semicircular ring, a tensioning assembly, a drying assembly and a spraying assembly; the left semicircular ring and the right semicircular ring are respectively arranged on the outer sides of the contact surfaces of the upper steel pipe and the lower steel pipe and hermetically surround the contact surfaces of the upper steel pipe and the lower steel pipe; the two sides of the left semicircular ring are provided with left side lugs, and the two sides of the right semicircular ring are provided with right side lugs; a sealing strip is arranged between the left side ear and the right side ear; the two groups of tensioning assemblies are respectively arranged on the left lug and the right lug and are used for circumferentially pressing the left lug and the right lug; the spraying assembly comprises a paint box, an air pump and a spray head; the paint box is arranged on the inner walls of the left semicircular ring and the right semicircular ring through the driving unit and can move in the left semicircular ring and the right semicircular ring in the axial direction; the paint box is connected with the spray head through an air pump; the spray head is over against the contact seam of the upper steel pipe and the lower steel pipe; the drying component comprises a drying pipe, an electric heating wire, a fan and a driving source; the drying pipe is arranged on the inner walls of the left semicircular ring and the right semicircular ring through the driving unit and can move in the left semicircular ring and the right semicircular ring in the axial direction, the driving source is arranged on the drying pipe and drives the fan to rotate, and the electric heating wire is arranged on the drying pipe and is positioned at an air outlet of the fan; the fan is over against the contact seam of the upper steel pipe and the lower steel pipe.
Further, the driving unit includes a first motor, a gear, and a rack; the inner walls of the left semicircular ring and the right semicircular ring are provided with sliding grooves, sliding blocks are inserted into the inner walls of the sliding grooves, the first motor is installed on the sliding blocks, an output shaft of the first motor is connected with a gear, and the gear is meshed with racks arranged on the inner walls of the left semicircular ring or the right semicircular ring.
Further, the grinding device also comprises a grinding assembly, wherein the grinding assembly comprises a second motor and a grinding stone; the second motor is arranged on the sliding block, and an output shaft of the second motor is connected with the grinding stone.
The first group of electrode rings and the second group of electrode rings are arranged on the inner walls of the left semicircular ring and the right semicircular ring, and the first group of spring pieces and the second group of spring pieces are arranged in the sliding block; electrodes of the first motor, the driving source, the electric heating wire and the air pump are fixedly connected with the surface of the first group of spring pieces, electrodes of the second motor are fixedly connected with the surface of the second group of spring pieces, the surface of the first group of spring pieces is in contact with the surface of the first group of electrode rings, and the surface of the second group of spring pieces is in contact with the surface of the second group of electrode rings; the first group of electrode rings and the second group of electrode rings are connected with an external controller through leads.
Further, the width of the rack is equal to the width of the tooth grooves of the gear, and the tooth surfaces of the gear are meshed with the tooth grooves of the rack.
Furthermore, the tensioning assembly comprises a fixing plate, a first connecting rod, a transition connecting rod, an adjusting screw rod, a sleeve, a right rotating shaft, a tensioning rod and a roller; the fixed plate is fixedly arranged above the left side ear or the right side ear, one end of the first connecting rod is hinged to the fixed plate, the other end of the first connecting rod is hinged to one end of the transition connecting rod through a connecting shaft, the transition connecting rod is rotatably connected with one end of the adjusting screw rod, the other end of the adjusting screw rod is in threaded connection with one end of the sleeve, the other end of the sleeve is hinged to one end of the tension rod through a right rotating shaft, the middle part of the tension rod is fixed on the fixed plate through a fixed shaft, and the other end of the tension rod is provided with a roller; and a pull rope is arranged on the connecting shaft.
Further, an aeration pipe is arranged inside the spray head, and a paint spraying opening is formed in the surface of the aeration pipe.
Furthermore, one end surface of the drying tube is provided with an air hole.
Furthermore, a left rubber ring is arranged on the contact surface of the left semicircular ring and the upper steel pipe and the contact surface of the left semicircular ring and the lower steel pipe.
Furthermore, a right rubber ring is arranged on the contact surface of the right semicircular ring and the upper steel pipe and the contact surface of the right semicircular ring and the lower steel pipe.
The utility model provides a beneficial effect does:
1. the utility model discloses the device can be when the steel-pipe column protective paint inefficacy under water, carries out online spraying to the welded junction of last steel pipe and lower steel pipe, has avoided further having guaranteed the structural stability of steel-pipe column because the corrosion that the protective paint inefficacy brought for the safety risk descends, and has improved staff's work efficiency.
2. The utility model discloses the one end of hose and the fixed intercommunication of aeration pipe among the device, the paint spraying mouth has been seted up on the surface of aeration pipe, has reached the effect to last steel pipe and lower steel pipe welding department spraying to even spraying has been realized.
3. The utility model discloses the surface of first group spring leaf and the surface contact of first group electrode circle in the device, the surface of second group spring leaf and the surface contact of second group electrode circle have reached the effect of organizing the spring leaf circular telegram to first group spring leaf and second to the wire takes place winding problem when rotary motion is done to the slider has been solved.
4. The utility model discloses the device equals through the distance that sets up two racks and the width of gear tooth's socket, and the tooth's socket intermeshing of tooth's face and rack has reached and has driven lacquer workbin moving effect to the unable effect to last steel pipe and the comprehensive spraying of lower steel pipe welding department of lacquer case has been solved.
Drawings
FIG. 1 is a schematic diagram showing the appearance of the paint spraying device for the butt joint of the large-scale double-wall steel pipe column in water according to the present invention;
FIG. 2 is a sectional view of the paint spraying device for the butt joint of the large-scale double-wall steel pipe column in water;
FIG. 3 is a sectional view of the chute structure of the paint spraying device for the butt joint of the large-scale double-wall steel pipe column in water of the utility model;
FIG. 4 is a schematic structural view of a driving unit of the paint spraying device for the underwater large-scale double-wall steel pipe column butt joint connector of the utility model;
FIG. 5 is a sectional view of the polishing assembly structure of the paint spraying device for the butt joint of the large-scale double-wall steel pipe column in water according to the present invention;
FIG. 6 is an enlarged view of the structure at A in FIG. 2;
FIG. 7 is an enlarged view of the structure at B in FIG. 2;
FIG. 8 is an enlarged view of the structure at C in FIG. 2;
FIG. 9 is an enlarged view of the structure at D in FIG. 2;
fig. 10 is a top view of the paint spraying device for the butt joint of the large-sized double-walled steel pipe column in water according to the present invention;
fig. 11 is a schematic structural view of a tensioning assembly of the paint spraying device for the underwater large-sized double-wall steel pipe column butt joint connector of the present invention in a tensioned state;
fig. 12 is a schematic structural diagram of the tension assembly of the paint spraying device for the underwater large-sized double-wall steel pipe column butt joint in the state of no tension.
Reference numerals: 1, steel pipe installation; 2, placing a steel pipe; 3-left semicircular ring; 4-right semicircular ring; 5-left lateral ear; 6-right ear; 7-sealing strips; 8-a tensioning assembly; 9-a chute; 10-a slide block; 11-a first electric machine; 12-a first shaft; 13-a gear; 14-a rack; 15-paint box; 16-an air pump; 17-a spray head; 18-a placement port; 19-a drying tube; 20-fixing block; 21-a drive source; 22-an electric heating wire; 23-air holes; 24-connecting blocks; 25-a second motor; 26-a third rotating shaft; 27-a millstone; 28-a first set of electrode loops; 29-a second set of electrode rings; 30-connecting port; 31-a first set of leaf springs; 32-a second set of spring blades; 33-wiring holes; 34-connecting wires; 35-a first controller; 36-a second controller; 37-a hose; 38-an aerator pipe; 39-a paint spraying opening; 40-a second rotating shaft; 41-fan, 42-left rubber ring, 43-right rubber ring, 81-fixed plate, 82-first connecting rod, 83-adjusting screw rod, 84-sleeve, 85-right rotating shaft, 86-tensioning rod, 87-roller, 88-transition connecting rod, 89-fixed shaft, 810-connecting shaft and 811-pull rope.
Detailed Description
As shown in fig. 1 to 12, the utility model provides a large-scale double-walled steel-pipe column butt joint paint spraying apparatus in aquatic, including left semicircle ring 3, right semicircle ring 4, tensioning component 8, drying assembly and spraying component.
As shown in fig. 1 and 2, the left semicircular ring 3 and the right semicircular ring 4 are respectively arranged outside the contact surface of the upper steel pipe 1 and the lower steel pipe 2, and hermetically surround the contact surface of the upper steel pipe 1 and the lower steel pipe 2; the two sides of the left semicircular ring 3 are provided with left side lugs 5, and the two sides of the right semicircular ring 4 are provided with right side lugs 6; a sealing strip 7 is arranged between the left side ear 5 and the right side ear 6; two sets of tensioning assemblies 8 are respectively arranged on the left lug 5 and the right lug 6 and are used for circumferentially pressing the left lug 5 and the right lug 6. Be provided with sealing strip 7 between left side ear 5 and the right side ear 6, a side surface of left semicircle ring 3 is provided with left rubber circle 42, and a side surface of right semicircle ring 4 is provided with right rubber circle 43, seals the contact surface of going up steel pipe 1 and lower steel pipe 2 in left semicircle ring 3 and right semicircle ring 4, and above-mentioned measure reaches the sealed of butt joint department, avoids outside water to get into left semicircle ring 3, right semicircle ring 4.
As shown in fig. 11 and 12, the tension assembly 8 includes a fixing plate 81, a first connecting rod 82, a transition connecting rod 88, an adjusting screw 83, a sleeve 84, a right rotating shaft 85, a tension rod 86, and a roller 87; the fixing plate 81 is fixedly arranged above the left side ear 5 or the right side ear 6, one end of the first connecting rod 82 is hinged on the fixing plate 81, the other end of the first connecting rod is hinged with one end of the transition connecting rod 88 through the connecting shaft 810, the other end of the transition connecting rod 88 is rotatably connected with one end of the adjusting screw 83 (namely, the transition connecting rod is connected with the adjusting screw and can rotate relatively), the other end of the adjusting screw 83 is in threaded connection with one end of the sleeve 84, the other end of the sleeve 84 is hinged with one end of the tensioning rod 86 through the right rotating shaft 85, the middle part of the tensioning rod 86 is fixed on the fixing plate 81 through the fixing shaft 89, and the other end of; a pull cord 811 is provided on the connecting shaft 810. During the use, operating personnel adjusts adjusting screw 83, makes the length increase of sleeve 84 for gyro wheel 87 is used in 6 surfaces on the right side ear, makes left side ear 5 and right side ear 6 pretension each other, and left side ear 5 and right side ear 6 produce the extrusion to sealing strip 7, reach waterproof effect. When needs take out left semicircle ring 3 and right semicircle ring 4, pulling stay cord 811 can to solved the steel-pipe column and connected the application and satisfied the lower water latency longer and to the uncontrollable problem of left semicircle ring 3 and right semicircle ring 4 of going into.
As shown in fig. 4 and 8, the painting assembly comprises a paint bin 15, an air pump 16 and a spray head 17; the paint box 15 is arranged on the inner walls of the left semicircular ring 3 and the right semicircular ring 4 through a driving unit and can move in the left semicircular ring 3 and the right semicircular ring 4 in the axial direction; the paint box 15 is connected with a spray head 17 through an air pump 16; the spray head 17 is over against the contact seam of the upper steel pipe 1 and the lower steel pipe 2. The drying assembly includes a drying duct 19, an electric heating wire 22, a fan 41, and a driving source 21; the drying pipe 19 is arranged on the inner walls of the left semicircular ring 3 and the right semicircular ring 4 through the driving unit and can move in the left semicircular ring 3 and the right semicircular ring 4 in the axial direction, the driving source 21 is arranged on the drying pipe 19 and drives the fan 41 to rotate, and the electric heating wire 22 is arranged on the drying pipe 19 and is positioned at the air outlet of the fan 41; the fan 41 faces the contact seam between the upper steel pipe 1 and the lower steel pipe 2.
As shown in fig. 3 to 4, the driving unit includes a first motor 11, a gear 13, and a rack 14; the inner walls of the left semicircular ring 3 and the right semicircular ring 4 are provided with sliding grooves 9, the inner walls of the sliding grooves 9 are inserted with sliding blocks 10, a first motor 11 is installed on the sliding blocks 10, an output shaft of the first motor is connected with a gear 13, and the gear 13 is meshed with a rack 14 arranged on the inner wall of the left semicircular ring 3 or the right semicircular ring 4. The surface of one side of slider 10 is fixedly connected with first motor 11, and the output shaft of first motor 11 passes through shaft coupling fixedly connected with first pivot 12, and the fixed surface of first pivot 12 is connected with gear 13, and the equal fixedly connected with rack 14 of the inner wall of left semicircle ring 3 and right semicircle ring 4, and the distance of two rack 14 equals with the width of gear 13 tooth's socket, and the flank of tooth of gear 13 and the tooth's socket of rack 14 intermeshing.
As shown in fig. 4, a paint box 15 is fixedly connected to a surface of one side of a first motor 11, a micro air pump 16 is arranged on an inner bottom surface of the paint box 15, the micro air pump 16 is JH24-80 in model, a hose 37 is fixedly sleeved on a surface of one end of the micro air pump 16, a nozzle 17 is fixedly connected to a surface of one side of the paint box 15, a placing opening 18 is formed in a surface of one side of the paint box 15, the hose 37 extends into the nozzle 17 through the placing opening 18, an aeration pipe 38 is arranged inside the nozzle 17, a free end of the hose 37 is fixedly communicated with the aeration pipe 38, a paint spraying opening 39 is formed in a surface of the aeration pipe 38, so that an effect of driving the paint box, thereby solved paint vehicle case 15 and can't reached the effect to the comprehensive spraying of steel pipe 1 and lower steel pipe 2 welding department, thereby solved the problem of unable even spraying.
As shown in fig. 8, a surface of the first motor 11 above the paint box 15 is fixedly connected with a drying tube 19, an inner wall of the drying tube 19 is fixedly connected with a fixing block 20, an inner surface of the fixing block 20 is fixedly provided with a driving source 21, the driving source 21 is specifically an electric motor with model No. JS-3420, an output shaft of the driving source 21 is fixedly connected with a second rotating shaft 40 through a coupler, a surface of the second rotating shaft 40 is fixedly connected with a fan 41, an inner surface of one end of the drying tube 19 far away from the driving source 21 is fixedly connected with an electric heating wire 22, and an air hole 23 is formed in the surface of one. Corresponding drying agents can be arranged in the drying pipe 19 so as to dry the air generated by the fan 41 again, and the air holes 23 close to one end of the electric motor supplement new air to form air circulation, so that the drying effect is better.
As shown in fig. 5, the apparatus further comprises a grinding assembly comprising a second motor 25 and a grinding stone 27. The surface of the sliding block 10 is fixedly connected with a connecting block 24, the surface of the connecting block 24 is fixedly provided with a second motor 25, an output shaft of the second motor 25 is fixedly connected with a third rotating shaft 26 through a coupler, and the surface of the third rotating shaft 26 is fixedly connected with a grinding stone 27.
As shown in fig. 6, the inner wall of the sliding chute 9 is fixedly connected with a first group of electrode rings 28 and a second group of electrode rings 29, a connecting port 30 is formed on one side surface of the slider 10, a first group of spring pieces 31 and a second group of spring pieces 32 are respectively arranged inside the two groups of connecting ports 30, electrodes of the first motor 11, the driving source 21, the electric heating wire 22 and the micro air pump 16 are fixedly connected with the surface of the first group of spring pieces 31, electrodes of the second motor 25 are fixedly connected with the surface of the second group of spring pieces 32, the surface of the first group of spring pieces 31 is in contact with the surface of the first group of electrode rings 28, and the surface of the second group of spring pieces 32 is in contact with the. Wiring hole 33 has been seted up to the upper surface of left semicircle ring 3, the inside in two wiring holes 33 all is provided with connecting wire 34, connecting wire 34 and first group electrode circle 28 electric connection in a wiring hole 33, connecting wire 34 and second group electrode circle 29 electric connection in another wiring hole 33, two connecting wire 34's one end electric connection has first controller 35 and second controller 36 respectively, the effect of circular telegram to first group spring leaf 31 and second group spring leaf 32 has been reached, thereby the wire takes place winding problem when slider 10 is rotary motion.
The working principle is as follows: when the paint spraying device is used, after an operator welds an upper steel pipe 1 and a lower steel pipe 2 together in a weld joint mode of penetration groove welding, a left semicircular ring 3 and a right semicircular ring 4 are fixed at a welding position through a tensioning assembly 8, the steel pipe column is placed in water, the operator controls a first motor 11 inside the left semicircular ring 3 or the right semicircular ring 4 through a first controller 35, a starting button of the first controller 35 is pressed, the first motor 11, a driving source 21, an electric heating wire 22 and a micro air pump 16 are powered on, the first motor 11 drives a paint box 15 to move through meshing of a gear 13 and a rack 14, meanwhile, the micro air pump 16 sprays paint from a paint spraying opening 39 through a hose 37, the driving source 21 drives a fan 41 to rotate, the electric heating wire 22 generates heat, the paint spraying surface is dried, and after a period of time, the operator presses the stopping button. When the underwater protective paint of the steel pipe column fails, the left semicircular ring 3 and the right semicircular ring 4 are fixed at a welding position through the tensioning assembly 8, the second motor 25 is powered on to drive the grindstone 27 to operate, the damaged protective paint is scraped down, the starting buttons of the first controller 35 and the second controller 36 are pressed, the first motor 11, the driving source 21, the electric heating wire 22 and the miniature air pump 16 are powered on, the first motor 11 drives the paint box 15 to move through the meshing of the gear 13 and the rack 14, meanwhile, the miniature air pump 16 sprays paint from the paint spraying opening 39 through the hose 37, the driving source 21 drives the fan 41 to rotate, the electric heating wire 22 generates heat, and then the paint spraying surface is dried to finish the coating repairing.

Claims (10)

1. The utility model provides a large-scale double-walled steel-pipe column butt joint paint spraying apparatus in aquatic which characterized in that: comprises a left semicircular ring (3), a right semicircular ring (4), a tensioning component (8), a drying component and a spraying component;
the left semicircular ring (3) and the right semicircular ring (4) are respectively arranged on the outer sides of the contact surfaces of the upper steel pipe (1) and the lower steel pipe (2), and seal and surround the contact surfaces of the upper steel pipe (1) and the lower steel pipe (2); both sides of the left semicircular ring (3) are provided with left side lugs (5), and both sides of the right semicircular ring (4) are provided with right side lugs (6); a sealing strip (7) is arranged between the left side ear (5) and the right side ear (6);
the two groups of tensioning assemblies (8) are respectively arranged on the left lug (5) and the right lug (6) and are used for circumferentially pressing the left lug (5) and the right lug (6);
the spraying assembly comprises a paint box (15), an air pump (16) and a spray head (17); the paint box (15) is arranged on the inner walls of the left semicircular ring (3) and the right semicircular ring (4) through the driving unit and can move in the inner ring direction of the left semicircular ring (3) and the right semicircular ring (4); the paint box (15) is connected with the spray head (17) through an air pump (16); the spray head (17) is over against the contact seam of the upper steel pipe (1) and the lower steel pipe (2);
the drying component comprises a drying pipe (19), an electric heating wire (22), a fan (41) and a driving source (21); the drying pipe (19) is arranged on the inner walls of the left semicircular ring (3) and the right semicircular ring (4) through a driving unit and can move in the inner ring direction of the left semicircular ring (3) and the right semicircular ring (4), the driving source (21) is arranged on the drying pipe (19) and drives the fan (41) to rotate, and the electric heating wire (22) is arranged on the drying pipe (19) and is positioned at an air outlet of the fan (41); the fan (41) is over against the contact seam of the upper steel pipe (1) and the lower steel pipe (2).
2. The painting device for the butt joint of the underwater large-sized double-wall steel pipe column according to claim 1, characterized in that: the drive unit comprises a first motor (11), a gear (13) and a rack (14);
the inner walls of the left semicircular ring (3) and the right semicircular ring (4) are provided with sliding grooves (9), the inner wall of each sliding groove (9) is connected with a sliding block (10) in an inserting mode, the first motor (11) is installed on the sliding block (10), the output shaft of the first motor is connected with a gear (13), and the gear (13) is meshed with a rack (14) arranged on the inner wall of the left semicircular ring (3) or the right semicircular ring (4).
3. The painting device for the butt joint of the underwater large-sized double-wall steel pipe column according to claim 2, characterized in that: the grinding assembly comprises a second motor (25) and a grinding stone (27); the second motor (25) is arranged on the sliding block (10), and an output shaft of the second motor is connected with the grinding stone (27).
4. The painting device for the butt joint of the underwater large-sized double-walled steel pipe column according to claim 3, characterized in that: the electrode structure also comprises a first group of electrode rings (28) and a second group of electrode rings (29) which are arranged on the inner walls of the left semicircular ring (3) and the right semicircular ring (4), and a first group of spring pieces (31) and a second group of spring pieces (32) which are arranged in the sliding block (10);
electrodes of the first motor (11), the driving source (21), the electric heating wire (22) and the air pump (16) are fixedly connected with the surface of a first group of spring pieces (31), electrodes of the second motor (25) are fixedly connected with the surface of a second group of spring pieces (32), the surface of the first group of spring pieces (31) is in contact with the surface of a first group of electrode rings (28), and the surface of the second group of spring pieces (32) is in contact with the surface of a second group of electrode rings (29); the first group of electrode rings (28) and the second group of electrode rings (29) are connected with an external controller through connecting wires (34).
5. The painting device for the butt joint of the underwater large-sized double-wall steel pipe column according to claim 4, characterized in that: the width of the rack (14) is equal to the width of a tooth space of the gear (13), and the tooth surface of the gear (13) is meshed with the tooth space of the rack (14).
6. The painting device for the butt joint of the large-scale underwater double-wall steel pipe column according to any one of claims 1 to 5, characterized in that: the tensioning assembly (8) comprises a fixing plate (81), a first connecting rod (82), a transition connecting rod (88), an adjusting screw rod (83), a sleeve (84), a right rotating shaft (85), a tensioning rod (86) and a roller (87);
the fixed plate (81) is fixedly arranged above the left side ear (5) or the right side ear (6), one end of the first connecting rod (82) is hinged to the fixed plate (81), the other end of the first connecting rod is hinged to one end of the transition connecting rod (88) through a connecting shaft (810), the transition connecting rod (88) is rotatably connected with one end of the adjusting screw rod (83), the other end of the adjusting screw rod (83) is in threaded connection with one end of the sleeve (84), the other end of the sleeve (84) is hinged to one end of the tensioning rod (86) through a right rotating shaft (85), the middle of the tensioning rod (86) is fixed to the fixed plate (81) through a fixing shaft (89), and the other end of the tensioning rod (86) is provided with a roller (87); the connecting shaft (810) is provided with a pull rope (811).
7. The painting device for the butt joint of the underwater large-sized double-walled steel pipe column according to claim 6, wherein: an aeration pipe (38) is arranged in the spray head (17), and a paint spraying opening (39) is formed in the surface of the aeration pipe (38).
8. The painting device for the butt joint of the underwater large-sized double-wall steel pipe column according to claim 7, characterized in that: and one end surface of the drying tube (19) is provided with an air hole (23).
9. The painting device for the butt joint of the underwater large-sized double-wall steel pipe column according to claim 8, characterized in that: and a left rubber ring (42) is arranged on the contact surface of the left semicircular ring (3) with the upper steel pipe (1) and the lower steel pipe (2).
10. The painting device for the butt joint of the underwater large-sized double-walled steel pipe column according to claim 9, characterized in that: and a right rubber ring (43) is arranged on the contact surface of the right semicircular ring (4) with the upper steel pipe (1) and the lower steel pipe (2).
CN201921082721.6U 2019-07-11 2019-07-11 Paint spraying device for butt joint of large-scale double-wall steel pipe column in water Active CN210632362U (en)

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CN201921082721.6U CN210632362U (en) 2019-07-11 2019-07-11 Paint spraying device for butt joint of large-scale double-wall steel pipe column in water

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Application Number Priority Date Filing Date Title
CN201921082721.6U CN210632362U (en) 2019-07-11 2019-07-11 Paint spraying device for butt joint of large-scale double-wall steel pipe column in water

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116174207A (en) * 2022-09-08 2023-05-30 宁波百德满不锈钢有限公司 Stainless steel pipe welding protection device and method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116174207A (en) * 2022-09-08 2023-05-30 宁波百德满不锈钢有限公司 Stainless steel pipe welding protection device and method thereof
CN116174207B (en) * 2022-09-08 2023-11-10 宁波百德满不锈钢有限公司 Stainless steel pipe welding protection device and method thereof

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