Power casing and casing welding process

Abstract

The invention discloses an electric bushing and a bushing welding processing technology. Aiming at the problem that the existing strength is low, it is easy to be deformed under the action of various pressures, and the inside of the electric bushing is also easy to have defects such as black spots and leaks, which affect the product quality of the electric bushing, the following scheme is proposed, wherein the electric bushing comprises a cylinder, a circular arc cylinder is welded on the top of the cylinder, a short cylinder is welded on the top of the circular arc cylinder, a connecting ring is welded on the top of the short cylinder, arc plates are welded on both sides of the bottom of the cylinder, a chassis is welded on the bottom of the cylinder, three through openings are opened at the bottom of the chassis, a small opening is opened at the edge of the bottom of the chassis, and the top end of the cylinder surface is connected with an opening cylinder. The electric bushing of the present application is subjected to multiple processing and welding of various structures, thereby increasing the structural strength of the electric bushing, and in the welding process, after multiple cleanings, the electric bushing is not easy to have defects such as black spots and leaks, and the product quality is good.

Description

Technical Field

[0001] The present invention relates to the field of electric power technology, and in particular to an electric power bushing and a bushing welding process. Background Art

[0002] The Chinese patent document with application number 202010319352.9 discloses an electric bushing, including a pipe body, the inner wall of which is recessed with a flow channel, and the two ends of the flow channel penetrate the two ends of the pipe body. The pipe body is conveniently connected to a circulating cooling device through the recessed flow channel to cool the wires and cables, greatly reducing the cable line loss during the power transmission and transformation process. The recessed flow channel can save materials and reduce material costs. The convex wall formed by the flow channel supports the internal wires, strengthens the structure, and increases the ring stiffness. At the same time, the outer wall is smooth and flat, which meets the requirements of the pipeline using a directional drilling non-excavation laying process.

[0003] However, the power bushing also has some problems. For example, the power bushing made by the above method has low strength and is easily deformed under various pressures. In addition, defects such as black spots and leaks are also easily present inside the power bushing, which affects the product quality of the power bushing. Summary of the invention

[0004] Based on the technical problems existing in the background technology, the present invention proposes an electric bushing and a bushing welding process.

[0005] The present invention provides an electric bushing, comprising a cylinder, an arc cylinder welded on the top of the cylinder, a short cylinder welded on the top of the arc cylinder, a connecting ring welded on the top of the short cylinder, arc plates welded on both sides of the bottom of the cylinder, a chassis welded on the bottom of the cylinder, three through openings are provided at the bottom of the chassis, a small opening is provided at the edge of the bottom of the chassis, and the top of the surface of the cylinder is connected to an opening cylinder. The electric bushing of the present application has been processed for many times, has good structural strength, is not prone to defects such as black spots and leaks, and has good product quality.

[0006] A welding process for an electric casing comprises the following steps:

[0007] S1: Two flanges of forged blanks, the specifications of the two flanges are ø610*ø470*38 and ø775*52 respectively. The products are inspected and accepted before being put into storage. The scraps are used to process two flanges. The blank is ø1000*10, which is pressed outsourced into a spherical crown with an inner arc of R300 and a diameter of ø760. The blank is 2356*450*10, one piece, three sides are chamfered on the same side, one side is on the opposite side with a straight edge of 2 mm at 35°, and the blank is 1540*80*10, one piece, four sides are chamfered, two sides are on the same side, and two sides are on the opposite side;

[0008] S2: The specification of the main tube is 2356*450*10. After rolling into a circle, the pits at the joints are cleaned with acetone. The specification of the branch tube is 1540*80*10. After rolling into a circle, the pits at the joints are cleaned with acetone.

[0009] S3: Get material ø610*ø470*38 and rough turn it to ø605*ø480*35, turn the stop ø502*5 and invert the inner groove at 35°, get material ø130*96, 3 pieces, rough turn it to ø125*95, smooth one side, turn it to drilling and tapping on the drilling machine to deepen it by 3mm, get material ø150*111 and rough turn it to ø140*ø90*110, turn it to drilling and tapping 8-ST8 on the drilling machine to a depth of 21, get material ø775*52 and rough turn it to ø765*50, turn the outer stop ø740*5 on one side, to the outer groove of 35°*5, turn it to outsourcing for processing 3-ø250 hole into 3-ø260 and 3-R175 boss;

[0010] S4: The pressed ball crown is spot welded with a special tube and then clamped on a lathe to measure the total height, and the inner groove is beveled at 35° to retain a straight edge of 2 mm;

[0011] S5: Weld the rolled main tube and support tube together according to the welding process. There shall be no defects such as pores and slag inclusions. Connect the outsourced ø765*50 bottom flange to the main tube and weld it according to the welding process. There shall be no defects such as pores and slag inclusions. After completion, assemble and install the ball crown and continue to weld the ball crown. At the same time, connect the upper support tube with the ø605 flange as one, and hand them over to the assembly to fix the length and install the upper flange. Ensure that there is processing allowance at both ends. Weld the upper flange according to the welding process. There shall be no defects such as pores and slag inclusions. Mark out the 3-ø125 support flange, 1-ø140 support flange and ø60 gas nozzle. Use a plasma arc cutting machine to cut the 3-ø125 and 1-ø140 holes and leave a 5mm allowance for each hole.

[0012] S6: Boring ø125 at the 3-ø125 flange installation +0.5 , 1-ø140 flange installation boring ø140 +0.5 , mill the 3-ø125 branch small flange to R150 arc high point 50, low point 1, mill the φ140 branch flange to R150 arc high point 83, low point 63; install in place, process and install the air nozzle in place, install the two flanges in place, weld the 3-ø125 branch flange, 1-ø140 branch flange, two flanges and a air nozzle, and there must be no defects such as pores and slag inclusions;

[0013] S7: Use special clamps to hold the inner hole, and turn the two end faces and outer circle after correction. The total length is controlled to 800. The outer circle is turned to ø760 and ø600. ø760 is the outer circle of the main cylinder flange, and ø600 is the outer circle of the support cylinder flange. Use special tooling to clamp, bore 3-ø260, stop ø299 and sealing groove. The size of the sealing groove is ø290, width 7.5, depth 3.7; 3-ø125 and ø140 support cylinder flanges, smooth the plane and dig the sealing groove, carefully grind the intersection of the high points of the welds in the cylinder to make it smooth, and the cylinder wall is smooth without pits. Install all sealing covers and fill the cylinder with water, then slowly pressurize 0.3MPa for each increase in pressure, pause for 5 minutes, and pause for 30 minutes until it reaches 1.2MPa. It is qualified if there is no deformation or other sounds;

[0014] S8: Install the machined surface cover, adjust the shot peening machine data, shot peen all the external surfaces, use cleaning equipment and special aluminum degreasing agent to carefully clean the cylinder without any oil stains and dust, check with a white cloth in any corner, and no powdery black marks should appear;

[0015] S9: Carry out inspection according to the technical requirements of helium inspection and keep records. Determine the color according to the engineering requirements and spray powder evenly on the shell to control the thickness to 70-140 microns. Put it into the baking oven and heat it to 195℃. Take it out of the oven after 20 minutes. Check the completion of each process and the appearance. After confirmation, pack and put it into storage;

[0016] The cleaning equipment includes a base, the bottom of the base is rotatably connected to walking wheels on all sides, a connecting frame is hinged on the left side of the top of the base, the top of the connecting frame is bolted to a cleaning box, a mesh plate is clamped on the inner side of the cleaning box, the left side of the cleaning box is connected to a drain pipe, a stirring mechanism is bolted to the surface of the cleaning box, a flipping mechanism is hinged on the bottom of the cleaning box, the cleaning box can be used to clean various components, the cleaning liquid can be stirred by the stirring mechanism to enhance the cleaning effect, and the cleaning box can be flipped by the flipping mechanism, which makes it convenient to clean the inside of the cleaning box.

[0017] Preferably, the stirring mechanism includes a power motor, a main bevel gear, a sub-bevel gear and a stirring assembly. The surface of the power motor is bolted to the surface of the cleaning box, the output end of the power motor is keyed to the axis of the main bevel gear, the teeth of the main bevel gear are meshed with the teeth of the sub-bevel gear, the sub-bevel gear is keyed to the stirring assembly, the power of the power motor is turned on, and the power motor is controlled by a motor controller. The power motor can drive the main bevel gear to rotate, and the main bevel gear can drive the sub-bevel gear to rotate.

[0018] Preferably, the stirring assembly includes a main sprocket, a chain, a secondary sprocket and a mixing assembly. The axis of the secondary bevel gear is key-connected to the surface of the main sprocket, and the axis of the main sprocket is rotatably connected to the surface of the cleaning box. The teeth of the main sprocket are meshed with the top end of the inner side of the chain. The secondary sprocket and the mixing assembly are each provided with two, and the teeth of the two secondary sprockets are meshed with the inner side of the chain. The secondary sprocket is key-connected to the mixing assembly. The secondary bevel gear can drive the main sprocket to rotate, and the main sprocket is rotatably arranged with the cleaning box through a bearing to ensure the stability of the rotation of the main sprocket. The main sprocket can drive the chain to rotate, and the chain can drive the two secondary sprockets to rotate.

[0019] Preferably, the mixing assembly includes a rotating rod and a stirring plate, both ends of the rotating rod surface are rotatably sleeved with the inside of the cleaning box, one end of the rotating shaft extends to the front side of the cleaning box and is keyed to the axis of the secondary sprocket, the rotating rod is bolted to the stirring plate, the secondary sprocket can drive the rotating rod to rotate, the rotating rod can drive the stirring plate to rotate, the stirring plate can stir the special aluminum product degreaser inside the cleaning box, and the generated fluctuations clean the power sleeve.

[0020] Preferably, the flipping mechanism includes a small motor, a screw rod, a rack and a flipping assembly. The output end of the small motor is keyed to the right end of the screw rod, the surface of the screw rod is threadedly connected to the screw hole of the rack, the rack is meshed with the flipping assembly, the power supply of the small motor is turned on, and the small motor is controlled by a motor controller. The small motor can drive the screw rod to rotate, and the screw rod can use the thread to drive the rack to move to the left.

[0021] Preferably, the flipping assembly includes a pinion, a transmission frame and an articulated frame, the axis of the pinion is hinged to the right end of the transmission frame, the right end of the transmission frame is hinged to the top of the base, the left end of the transmission frame is hinged to the bottom end of the articulated frame, the top of the articulated frame is hinged to the bottom of the cleaning box, the rack can drive the pinion to rotate, the pinion can drive the transmission frame to rotate upward, the transmission frame can drive the articulated frame to rotate upward, and the articulated frame can drive the cleaning box to flip upward, so that it is convenient for the user to clean the inside of the cleaning box.

[0022] Preferably, the right side bolt on the top of the base is connected to a support frame, the support frame is bolted to the small motor, both ends of the screw rod can be rotatably sleeved with the inner side of the support frame, the bottom of the rack is slidably connected to the top of the base, the small motor is fixed by the support frame to ensure the stability of the small motor, the screw rod is rotatably arranged with the support frame through a bearing to ensure the smooth rotation of the screw rod, and the rack is slidably arranged with the base through a slide rail.

[0023] Preferably, the right bolt on the top of the base is connected to a handle frame, and a handle tube is clamped on the top of the handle frame. The surface of the handle tube is provided with anti-slip grooves, which are used to increase the friction on the surface of the handle tube, making it easier for the user to grasp the handle tube. The handle tube can push the base to move through the handle frame.

[0024] Preferably, a hinge groove is provided on the left side of the base, the hinge groove of the base is hinged to the bottom of the connecting frame, the connecting frame is U-shaped, the flipping mechanism is located at the bottom of the cleaning box, and the connecting frame is rotated by the bearing and the hinge groove of the base to ensure the stability of the rotation of the connecting frame. The structure of the connecting frame can effectively enhance the cleaning box.

[0025] The beneficial effects of the present invention are:

[0026] The power bushing of the present application has undergone multiple processing, and its structural strength is good, and it is not easy to have defects such as black spots and leaks. The product quality is good. The present application can be used to clean various components through a cleaning box, and the cleaning liquid can be stirred by a stirring mechanism to enhance the cleaning effect. The cleaning box can be flipped by a flipping mechanism, which makes it convenient to clean the inside of the cleaning box. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A three-dimensional schematic diagram of an electric bushing of an electric bushing proposed by the present invention;

[0028] Figure 2 This is an inverted three-dimensional schematic diagram of an electric power bushing proposed by the present invention;

[0029] Figure 3 A three-dimensional schematic diagram of a cleaning device for a power casing welding process proposed by the present invention;

[0030] Figure 4 A three-dimensional schematic diagram of a cleaning box for a power casing welding process proposed by the present invention;

[0031] Figure 5 A three-dimensional schematic diagram of a transmission frame of a power bushing welding process proposed by the present invention;

[0032] Figure 6 A three-dimensional schematic diagram of a mesh plate for a power bushing welding process proposed by the present invention;

[0033] Figure 7 A three-dimensional schematic diagram of a chain of a power bushing welding process proposed by the present invention;

[0034] Figure 8 A three-dimensional schematic diagram of a hybrid component of a power bushing welding process proposed by the present invention.

[0035] In the figure: 1. cylinder; 2. arc cylinder; 3. short cylinder; 4. arc plate; 5. chassis; 6. through port; 7. small port; 8. mouth cylinder; 9. connecting ring; 10. base; 11. walking wheel; 12. connecting frame; 13. cleaning box; 14. mesh plate; 15. drain pipe; 16. power motor; 17. main bevel gear; 18. secondary bevel gear; 19. main sprocket; 20. chain; 21. secondary sprocket; 22. rotating rod; 23. stirring plate; 24. small motor; 25. screw rod; 26. rack; 27. pinion; 28. transmission frame; 29. ​​articulated frame; 30. support frame; 31. handle frame; 32. handle pipe. DETAILED DESCRIPTION

[0036] The present invention will be further explained below in conjunction with specific embodiments. Example

[0037] refer to Figure 1-8 In this embodiment, an electric bushing is proposed, including a cylinder 1, a circular arc cylinder 2 is welded on the top of the cylinder 1, a short cylinder 3 is welded on the top of the circular arc cylinder 2, a connecting ring 9 is welded on the top of the short cylinder 3, arc plates 4 are welded on both sides of the bottom of the cylinder 1, a chassis 5 is welded on the bottom of the cylinder 1, three through openings 6 are opened at the bottom of the chassis 5, a small opening 7 is opened at the edge of the bottom of the chassis 5, and the top of the surface of the cylinder 1 is connected with an opening cylinder 8. The electric bushing of the present application has been processed many times, and its structural strength is good, and it is not easy to have defects such as black spots and leakage points, and the product quality is good.

[0038] A welding process for an electric casing comprises the following steps:

[0039] S1: Two flanges of forged blanks, the specifications of the two flanges are ø610*ø470*38 and ø775*52 respectively. The products are inspected and accepted before being put into storage. The scraps are used to process two flanges. The blank is ø1000*10, which is pressed outsourced into a spherical crown with an inner arc of R300 and a diameter of ø760. The blank is 2356*450*10, one piece, three sides are chamfered on the same side, one side is on the opposite side with a straight edge of 2 mm at 35°, and the blank is 1540*80*10, one piece, four sides are chamfered, two sides are on the same side, and two sides are on the opposite side;

[0040] S2: The specification of the main tube is 2356*450*10. After rolling into a circle, the pits at the joints are cleaned with acetone. The specification of the branch tube is 1540*80*10. After rolling into a circle, the pits at the joints are cleaned with acetone.

[0041] S3: Get material ø610*ø470*38 and rough turn it to ø605*ø480*35, turn the stop ø502*5 and invert the inner groove at 35°, get material ø130*96, 3 pieces, rough turn it to ø125*95, smooth one side, turn it to drilling and tapping on the drilling machine to deepen it by 3mm, get material ø150*111 and rough turn it to ø140*ø90*110, turn it to drilling and tapping 8-ST8 on the drilling machine to a depth of 21, get material ø775*52 and rough turn it to ø765*50, turn the outer stop ø740*5 on one side, to the outer groove of 35°*5, turn it to outsourcing for processing 3-ø250 hole into 3-ø260 and 3-R175 boss;

[0042] S4: The pressed ball crown is spot welded with a special tube and then clamped on a lathe to measure the total height, and the inner groove is beveled at 35° to retain a straight edge of 2 mm;

[0043] S5: Weld the rolled main tube and support tube together according to the welding process. There shall be no defects such as pores and slag inclusions. Connect the outsourced ø765*50 bottom flange to the main tube and weld it according to the welding process. There shall be no defects such as pores and slag inclusions. After completion, assemble and install the ball crown and continue to weld the ball crown. At the same time, connect the upper support tube with the ø605 flange as one, and hand them over to the assembly to fix the length and install the upper flange. Ensure that there is processing allowance at both ends. Weld the upper flange according to the welding process. There shall be no defects such as pores and slag inclusions. Mark out the 3-ø125 support flange, 1-ø140 support flange and ø60 gas nozzle. Use a plasma arc cutting machine to cut the 3-ø125 and 1-ø140 holes and leave a 5mm allowance for each hole.

[0044] S6: Boring ø125 at the 3-ø125 flange installation +0.5 , 1-ø140 flange installation boring ø140 +0.5 , mill the 3-ø125 branch small flange to R150 arc high point 50, low point 1, mill the φ140 branch flange to R150 arc high point 83, low point 63; install in place, process and install the air nozzle in place, install the two flanges in place, weld the 3-ø125 branch flange, 1-ø140 branch flange, two flanges and a air nozzle, and there must be no defects such as pores and slag inclusions;

[0045] S7: Use special clamps to hold the inner hole, and turn the two end faces and outer circle after correction. The total length is controlled to 800. The outer circle is turned to ø760 and ø600. ø760 is the outer circle of the main cylinder flange, and ø600 is the outer circle of the support cylinder flange. Use special tooling to clamp, bore 3-ø260, stop ø299 and sealing groove. The size of the sealing groove is ø290, width 7.5, depth 3.7; 3-ø125 and ø140 support cylinder flanges, smooth the plane and dig the sealing groove, carefully grind the intersection of the high points of the welds in the cylinder to make it smooth, and the cylinder wall is smooth without pits. Install all sealing covers and fill the cylinder with water, then slowly pressurize 0.3MPa for each increase in pressure, pause for 5 minutes, and pause for 30 minutes until it reaches 1.2MPa. It is qualified if there is no deformation or other sounds;

[0046] S8: Install the machined surface cover, adjust the shot peening machine data, shot peen all the external surfaces, use cleaning equipment and special aluminum degreasing agent to carefully clean the cylinder without any oil stains and dust, check with a white cloth in any corner, and no powdery black marks should appear;

[0047] S9: Carry out inspection according to the technical requirements of helium inspection and keep records. Determine the color according to the engineering requirements and spray powder evenly on the shell to control the thickness to 70-140 microns. Put it into the baking oven and heat it to 195℃. Take it out of the oven after 20 minutes. Check the completion of each process and the appearance. After confirmation, pack and put it into storage;

[0048] The cleaning device includes a base 10, and the four sides of the bottom of the base 10 are rotatably connected to walking wheels 11, the left side of the top of the base 10 is hinged with a connecting frame 12, the top of the connecting frame 12 is bolted to a cleaning box 13, the inner side of the cleaning box 13 is clamped with a mesh plate 14, the left side of the cleaning box 13 is connected to a drain pipe 15, the surface of the cleaning box 13 is bolted to a stirring mechanism, and the bottom of the cleaning box 13 is hinged with a flip mechanism;

[0049] The stirring mechanism includes a power motor 16, a main bevel gear 17, a sub-bevel gear 18 and a stirring assembly. The surface of the power motor 16 is bolted to the surface of the cleaning box 13, the output end of the power motor 16 is keyed to the axis of the main bevel gear 17, the teeth of the main bevel gear 17 are meshed with the teeth of the sub-bevel gear 18, the sub-bevel gear 18 is keyed to the stirring assembly, the power of the power motor 16 is turned on, the power motor 16 is controlled by a motor controller, the power motor 16 can drive the main bevel gear 17 to rotate, the main bevel gear 17 can drive the sub-bevel gear 18 to rotate, and the sub-bevel gear 18 can drive the stirring assembly to rotate;

[0050] The stirring assembly includes a main sprocket 19, a chain 20, a secondary sprocket 21 and a mixing assembly. The axis of the secondary bevel gear 18 is key-connected to the surface of the main sprocket 19. The axis of the main sprocket 19 is rotatably connected to the surface of the cleaning box 13. The teeth of the main sprocket 19 are meshed with the top of the inner side of the chain 20. The secondary sprocket 21 and the mixing assembly are each provided with two. The teeth of the two secondary sprockets 21 are meshed with the inner side of the chain 20. The secondary sprocket 21 is key-connected to the mixing assembly. The secondary bevel gear 18 can drive the main sprocket 19 to rotate. The main sprocket 19 is rotatably arranged with the cleaning box 13 through a bearing to ensure the stability of the rotation of the main sprocket 19. The main sprocket 19 can drive the chain 20 to rotate. The chain 20 can drive the two secondary sprockets 21 to rotate. The secondary sprocket 21 can drive the mixing assembly to rotate.

[0051] The mixing assembly includes a rotating rod 22 and a stirring plate 23. Both ends of the rotating rod 22 are rotatably sleeved with the inside of the cleaning box 13. One end of the rotating shaft extends to the front side of the cleaning box 13 and is keyed to the axis of the secondary sprocket 21. The rotating rod 22 is bolted to the stirring plate 23. The secondary sprocket 21 can drive the rotating rod 22 to rotate, and the rotating rod 22 can drive the stirring plate 23 to rotate. The stirring plate 23 can stir the special aluminum degreasing agent inside the cleaning box 13, and the generated wave cleans the power sleeve.

[0052] The flipping mechanism includes a small motor 24, a screw rod 25, a rack 26 and a flipping assembly. The output end of the small motor 24 is keyed to the right end of the screw rod 25, the surface of the screw rod 25 is threadedly connected to the screw hole of the rack 26, the rack 26 is meshed with the flipping assembly, the power of the small motor 24 is turned on, the small motor 24 is controlled by a motor controller, the small motor 24 can drive the screw rod 25 to rotate, the screw rod 25 can use the thread to drive the rack 26 to move left, and the rack 26 can drive the flipping assembly to rotate;

[0053] The flip assembly includes a pinion 27, a transmission frame 28 and an articulated frame 29. The axis of the pinion 27 is hinged to the right end of the transmission frame 28, the right end of the transmission frame 28 is hinged to the top of the base 10, the left end of the transmission frame 28 is hinged to the bottom end of the articulated frame 29, and the top of the articulated frame 29 is hinged to the bottom of the cleaning box 13. The rack 26 can drive the pinion 27 to rotate, the pinion 27 can drive the transmission frame 28 to rotate upward, the transmission frame 28 can drive the articulated frame 29 to rotate upward, and the articulated frame 29 can drive the cleaning box 13 to flip upward, so that the user can clean the inside of the cleaning box 13 conveniently.

[0054] The right side of the top of the base 10 is bolted to a support frame 30, and the support frame 30 is bolted to the small motor 24. Both ends of the screw rod 25 can be rotatably sleeved with the inner side of the support frame 30. The bottom of the rack 26 is slidably connected to the top of the base 10. The small motor 24 is fixed by the support frame 30 to ensure the stability of the small motor 24. The screw rod 25 is rotatably arranged with the support frame 30 through a bearing to ensure the smooth rotation of the screw rod 25. The rack 26 is slidably arranged with the base 10 through a slide rail.

[0055] The right bolt on the top of the base 10 is connected with a handle frame 31, and the top of the handle frame 31 is clamped with a handle pipe 32. The surface of the handle pipe 32 is provided with anti-skid patterns, which are used to increase the friction force on the surface of the handle pipe 32, making it easier for the user to grasp the handle pipe 32. The handle pipe 32 can push the base 10 to move through the handle frame 31;

[0056] A hinge groove is provided on the left side of the base 10, and the hinge groove of the base 10 is hinged to the bottom of the connecting frame 12. The connecting frame 12 is a U-shaped structure, and the flip mechanism is located at the bottom of the cleaning box 13. The connecting frame 12 is rotatable through the bearing and the hinge groove of the base 10 to ensure the stability of the rotation of the connecting frame 12. The structure of the connecting frame 12 can effectively enhance the cleaning box 13.

[0057] Working principle: Pour the special aluminum degreasing agent into the interior of the cleaning box 13, then place the power sleeve to be cleaned on the mesh plate 14 inside the cleaning box 13, turn on the power of the power motor 16, the power motor 16 is controlled by a motor controller, the power motor 16 can drive the main bevel gear 17 to rotate, the main bevel gear 17 can drive the secondary bevel gear 18 to rotate, the secondary bevel gear 18 can drive the main sprocket 19 to rotate, the main sprocket 19 is rotated with the cleaning box 13 through the bearing to ensure the stability of the rotation of the main sprocket 19, the main sprocket 19 can drive the chain 20 to rotate, the chain 20 can drive the two secondary sprockets 21 to rotate, the secondary sprocket 21 can drive the rotating rod 22 to rotate, and the rotating rod 22 can drive the stirring plate 23 rotates, the stirring plate 23 can stir the special aluminum product degreasing agent inside the cleaning box 13, and the generated fluctuations can clean the power sleeve. After cleaning, when the inside of the cleaning box 13 needs to be cleaned, the power of the small motor 24 is turned on, and the small motor 24 is controlled by a motor controller. The small motor 24 can drive the screw rod 25 to rotate, and the screw rod 25 can use the thread to drive the rack 26 to move to the left, and the rack 26 can drive the pinion 27 to rotate, and the pinion 27 can drive the transmission frame 28 to rotate upward, and the transmission frame 28 can drive the articulated frame 29 to rotate upward, and the articulated frame 29 can drive the cleaning box 13 to flip upward, so that the user can clean the inside of the cleaning box 13 conveniently.

[0058] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding process for an electric power bushing, wherein the electric power bushing comprises a cylinder (1), characterized in that: The top of the cylinder (1) is welded with an arc cylinder (2), the top of the arc cylinder (2) is welded with a short cylinder (3), the top of the short cylinder (3) is welded with a connecting ring (9), arc plates (4) are welded on both sides of the bottom of the cylinder (1), a bottom plate (5) is welded on the bottom of the cylinder (1), three through openings (6) are opened at the bottom of the bottom plate (5), a small opening (7) is opened at the edge of the bottom of the bottom plate (5), and the top of the surface of the cylinder (1) is connected to an opening cylinder (8); The welding process of power casing includes the following steps: S1: Two flanges of forged blanks, the specifications of the two flanges are ø610*ø470*38 and ø775*52 respectively. The products are inspected and accepted before being put into storage. The scraps are used to process two flanges. The blank is ø1000*10, which is pressed outsourced into a spherical crown with an inner arc of R300 and a diameter of ø760. The blank is 2356*450*10, one piece, three sides are chamfered on the same side, one side is on the opposite side with a straight edge of 2 mm at 35°, and the blank is 1540*80*10, one piece, four sides are chamfered, two sides are on the same side, and two sides are on the opposite side; S2: The specification of the main tube is 2356*450*10. After rolling into a circle, the pits at the joints are cleaned with acetone. The specification of the branch tube is 1540*80*10. After rolling into a circle, the pits at the joints are cleaned with acetone. S3: Get material ø610*ø470*38 and rough turn it to ø605*ø480*35, turn the stop ø502*5 and invert the inner groove at 35°, get material ø130*96, 3 pieces, rough turn it to ø125*95, smooth one side, turn it to drilling and tapping on the drilling machine to deepen it by 3mm, get material ø150*111 and rough turn it to ø140*ø90*110, turn it to drilling and tapping 8-ST8 on the drilling machine to a depth of 21, get material ø775*52 and rough turn it to ø765*50, turn the outer stop ø740*5 on one side, to the outer groove of 35°*5, turn it to outsourcing for processing 3-ø250 hole into 3-ø260 and 3-R175 boss; S4: The pressed ball crown is spot welded with a special tube and then clamped on a lathe to measure the total height, and the inner groove is chamfered at 35° to retain a straight edge of 2 mm; S5: Weld the rolled main tube and support tube together according to the welding process. There shall be no defects such as pores and slag inclusions. Connect the outsourced ø765*50 bottom flange to the main tube and weld it according to the welding process. There shall be no defects such as pores and slag inclusions. After completion, assemble and install the ball crown and continue to weld the ball crown. At the same time, connect the upper support tube with the ø605 flange as one. After assembling and fixing the length together, install the upper flange to ensure that there is machining allowance at both ends. Weld the upper flange according to the welding process. There shall be no defects such as pores and slag inclusions. Mark out the 3-ø125 support flange, 1-ø140 support flange and ø60 gas nozzle. Use a plasma arc cutting machine to cut the 3-ø125 and 1-ø140 holes and leave a 5mm allowance for each hole. S6: Boring ø125 at the 3-ø125 flange installation +0.5 , 1-ø140 flange installation boring ø140 +0.5 , mill the 3-ø125 branch small flange to R150 arc high point 50, low point 1, mill the φ140 branch flange to R150 arc high point 83, low point 63; install in place, process and install the air nozzle in place, install the two flanges in place, weld the 3-ø125 branch flange, 1-ø140 branch flange, two flanges and a air nozzle, and there must be no defects such as pores and slag inclusions; S7: Use special clamps to hold the inner hole, and turn the two end faces and outer circle after correction. The total length is controlled to 800. The outer circle is turned to ø760 and ø600. ø760 is the outer circle of the main cylinder flange, and ø600 is the outer circle of the support cylinder flange. Use special tooling to clamp, bore 3-ø260, stop ø299 and sealing groove. The size of the sealing groove is ø290, width 7.5, depth 3.7; 3-ø125 and ø140 support cylinder flanges, smooth the plane and dig the sealing groove, carefully grind the intersection of the high points of the welds in the cylinder to make it smooth, and the cylinder wall is smooth without pits. Install all sealing covers and fill the cylinder with water, then slowly pressurize 0.3MPa for each increase in pressure, pause for 5 minutes, and pause for 30 minutes until it reaches 1.2MPa. It is qualified if there is no deformation or other sounds; S8: Install the machined surface cover, adjust the shot peening machine data, shot peen all the external surfaces, use cleaning equipment and special aluminum degreasing agent to carefully clean the cylinder without any oil stains and dust, check with a white cloth in any corner, and no powdery black marks should appear; S9: Carry out inspection according to the technical requirements of helium inspection and keep records. Determine the color according to the engineering requirements and spray powder evenly on the shell to control the thickness to 70-140 microns. Put it into the baking oven and heat it to 195℃. Take it out of the oven after 20 minutes. Check the completion of each process and the appearance. After confirmation, pack and put it into storage; The cleaning device comprises a base (10), the bottom of the base (10) is rotatably connected to running wheels (11) on all sides, the top of the base (10) is hingedly connected to a connecting frame (12) on the left side, the top of the connecting frame (12) is bolted to a cleaning box (13), the inner side of the cleaning box (13) is clamped with a mesh plate (14), the left side of the cleaning box (13) is connected to a drain pipe (15), the surface of the cleaning box (13) is bolted to a stirring mechanism, and the bottom of the cleaning box (13) is hingedly connected to a flipping mechanism.

2. The welding process of an electric casing according to claim 1, characterized in that: The stirring mechanism comprises a power motor (16), a main bevel gear (17), a secondary bevel gear (18) and a stirring assembly. The surface of the power motor (16) is bolted to the surface of the cleaning box (13), the output end of the power motor (16) is key-connected to the axis of the main bevel gear (17), the teeth of the main bevel gear (17) are meshed with the teeth of the secondary bevel gear (18), and the secondary bevel gear (18) is key-connected to the stirring assembly.

3. The welding process of an electric casing according to claim 2, characterized in that: The stirring assembly comprises a main sprocket (19), a chain (20), a secondary sprocket (21) and a mixing assembly. The axis of the secondary bevel gear (18) is key-connected to the surface of the main sprocket (19). The axis of the main sprocket (19) is rotatably connected to the surface of the cleaning box (13). The teeth of the main sprocket (19) mesh with the top end of the inner side of the chain (20). Two secondary sprockets (21) and two mixing assemblies are provided. The teeth of the two secondary sprockets (21) mesh with the inner side of the chain (20). The secondary sprocket (21) is key-connected to the mixing assembly.

4. The welding process for electric casing according to claim 3 is characterized in that: The mixing assembly comprises a rotating rod (22) and a stirring plate (23). Both ends of the surface of the rotating rod (22) are rotatably sleeved inside the cleaning box (13). One end of the rotating shaft extends to the front side of the cleaning box (13) and is key-connected to the axis of the secondary sprocket (21). The rotating rod (22) is bolted to the stirring plate (23).

5. The welding process for electric casing according to claim 1, characterized in that: The flipping mechanism comprises a small motor (24), a screw rod (25), a rack (26) and a flipping assembly, wherein the output end of the small motor (24) is key-connected to the right end of the screw rod (25), the surface of the screw rod (25) is threadedly connected to the screw hole of the rack (26), and the rack (26) is meshed with the flipping assembly.

6. The welding process for electric casing according to claim 5, characterized in that: The flip assembly comprises a pinion (27), a transmission frame (28) and an articulated frame (29); the axis of the pinion (27) is hinged to the right end of the transmission frame (28); the right end of the transmission frame (28) is hinged to the top of the base (10); the left end of the transmission frame (28) is hinged to the bottom of the articulated frame (29); and the top end of the articulated frame (29) is hinged to the bottom of the cleaning box (13).

7. The welding process for electric casing according to claim 5, characterized in that: The right side of the top of the base (10) is bolted to a support frame (30), the support frame (30) is bolted to a small motor (24), both ends of the screw rod (25) can be rotatably sleeved with the inner side of the support frame (30), and the bottom of the rack (26) is slidably connected to the top of the base (10).

8. The welding process for electric casing according to claim 1, characterized in that: The right side of the top of the base (10) is bolted to a handle frame (31), the top of the handle frame (31) is clamped with a handle tube (32), and the surface of the handle tube (32) is provided with anti-slip grooves.

9. The welding process for electric casing according to claim 1, characterized in that: A hinge groove is provided on the left side of the base (10), the hinge groove of the base (10) is hinged to the bottom of the connecting frame (12), the connecting frame (12) is in a U-shaped structure, and the turning mechanism is located at the bottom of the cleaning box (13).

Images