Auxiliary welding device for steam direct burial heat preservation steel pipe

Abstract

The invention belongs to the technical field of steam direct burial heat preservation steel pipe welding assistance, and particularly relates to a steam direct burial heat preservation steel pipe welding assistance device which comprises a workbench, two first guide rails are fixedly connected to the upper surface of the workbench, and a first guide groove is formed in the upper surface of each first guide rail; a first guide groove is formed in the upper surface of the workbench, a first guide block is slidably connected into each first guide groove, a fixing column is fixedly connected to one side of each first guide block and used for being connected with a steel pipe in an inserted mode, a supporting frame is fixedly connected to the upper surface of the workbench, and a positioning semi-ring is fixedly connected to one side of the supporting frame; the cleaning block is arranged, so that the problems that residual metal corrosion or dirt possibly exists on the circumferential surface of the end part of the steel pipe, and after the metal corrosion or dirt is welded in the steel pipe, the corrosion object possibly becomes a stress concentration point in a welding seam, so that the risk of generating cracks in the stress process of the welding seam is increased, and the welding quality is low are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of welding auxiliary technology for steam directly buried thermal insulation steel pipes, in particular to a welding auxiliary device for steam directly buried thermal insulation steel pipes. Background Art

[0002] Steam insulated pipes, also known as insulated pipes, are mainly used for the transportation of liquids, gases and other media. They are widely used in pipeline insulation projects in many fields such as petroleum, chemical industry, aerospace, hot springs, military and municipal construction. The applicable temperature range is between -50℃ and 150℃, which is suitable for the transportation of various media. In addition, steam insulated pipes are also widely used in centralized heating, cooling, hot oil transportation, and thermal insulation and cooling projects in greenhouses, cold storage, coal mines, petroleum, chemical and other industries.

[0003] A patent with publication number CN118342213A discloses a steel-jacketed steel steam direct-buried insulated steel pipe welding auxiliary device, including a workbench, a support block fixed on the top of the workbench, a placement sleeve passing through the support block, and the placement sleeve is rotatably connected to the penetration point of the support block, a positioning mechanism for quickly fixing the steel pipe is provided on the placement sleeve, an adjustment mechanism for adjusting the direction of the placement sleeve is provided on the workbench, a cleaning mechanism for cleaning the welding part of the steel pipe is provided on the support block, and a beating mechanism is provided on the cleaning mechanism. The steel-jacketed steel steam direct-buried insulated steel pipe welding auxiliary device can quickly clamp, position and disassemble the steel pipe by arranging a slide groove, a sliding plate, a hinged rod, a connecting block, a connecting rod, a reset spring and a clamping block.

[0004] In the process of using the existing steam direct buried insulated steel pipe welding auxiliary device, when using the cleaning mechanism to clean the circumferential surface of the steel pipe, the circumferential surface of the steel pipe is cleaned by swinging the brush back and forth, but the entire circumferential surface of the steel pipe cannot be effectively cleaned, resulting in residual metal rust or dirt on the end circumferential surface of the steel pipe during the welding process. After these metal rust or dirt are welded inside the steel pipe, the rust may become a stress concentration point in the weld, increasing the risk of cracks in the weld during the stress process, resulting in low welding quality problems. At the same time, the steel pipe needs to be transferred after welding, and then the weld is polished using grinding equipment. The process is cumbersome, resulting in low production efficiency of the steel pipe.

[0005] To this end, the present invention provides a steam direct-buried insulated steel pipe welding auxiliary device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the steam direct-buried insulated steel pipe welding auxiliary device described in the present invention comprises a workbench, two first guide rails are fixedly connected to the upper surface of the workbench, each of the first guide rails is provided with a first guide groove on the upper surface, each of the first guide grooves is slidably connected with a first guide block, one side of each of the first guide blocks is fixedly connected with a fixed column, the fixed column is used to insert the steel pipe, the upper surface of the workbench is fixedly connected with a support frame, one side of the support frame is fixedly connected with a positioning half ring, the interior of the positioning half ring is provided with a first cavity, a rotating half wheel is rotatably connected in the first cavity, and the inner wall of the rotating half wheel is fixedly connected with a plurality of welding heads,

[0008] A cleaning assembly is provided on the inner wall of the rotating half-wheel, and the cleaning assembly includes a first hydraulic cylinder fixedly connected to the inner wall of the rotating half-wheel, a positioning rod is fixedly connected to the output end of the first hydraulic cylinder, a cleaning block is fixedly connected to the end of the positioning rod, the cleaning block is arc-shaped, and a plurality of brushes are fixedly connected to the lower surface of the cleaning block.

[0009] Preferably, a second motor is fixedly connected to the upper surface of the support frame, a positioning gear is fixedly connected to the output end of the second motor, the rotating half-wheel is meshed with the positioning gear, a third motor is fixedly connected to the inside of the workbench, a fixed shaft is fixedly connected to the output end of the third motor, a first gear is fixedly connected to the position of the fixed shaft corresponding to the rotating half-wheel, and the first gear is meshed with the rotating half-wheel.

[0010] Preferably, positioning grooves are provided on both sides of the inner wall of the first cavity, and a plurality of positioning columns are fixedly connected to both sides of the rotating half wheel. The rotating half wheel can rotate along the positioning grooves through the plurality of positioning columns, and a protrusion is fixedly connected to the bottom end of the rotating half wheel, and a plurality of cleaning rods are fixedly connected to the end of the protrusion. The plurality of cleaning rods are used to clean the first cavity.

[0011] Preferably, the arc surface of the cleaning block is fixedly connected to a positioning frame, a positioning cavity is provided on the upper surface of the positioning frame, the positioning rod is inserted in the positioning cavity, positioning holes are provided on one side of the positioning rod and the positioning frame, an insertion rod is inserted in the positioning hole, a telescopic rod is fixedly connected to one side of the insertion rod, one end of the telescopic rod away from the insertion rod is fixedly connected to the positioning frame, and a spring is sleeved on the circumferential surface of the telescopic rod.

[0012] Preferably, a first hydraulic cylinder is fixedly connected to the inner wall of the rotating half-wheel, a grinding block is fixedly connected to the output end of the first hydraulic cylinder, and the grinding block and the cleaning block are symmetrically arranged.

[0013] Preferably, a spraying assembly is provided on the upper surface of the workbench, and the spraying assembly includes two pressure boxes, each of which is fixedly connected to a first telescopic tube on its upper surface, and each of which is fixedly connected to a limit block on its upper surface, and the limit block is used to fix the first telescopic tube, and each of which is fixedly connected to a connecting ring at one end, and each of which has a plurality of connecting holes on its inner wall, and each of which is fixedly connected to a second hydraulic cylinder on one side of the pressure box close to the connecting ring, and the output end of the second hydraulic cylinder is fixedly connected to the connecting ring, and the two connecting rings can clamp and spray the joints of the steel pipes.

[0014] Preferably, one end of the fixed shaft is fixedly connected to a second gear, and the second gear is transmission-connected to a spray assembly, and the spray assembly is used for dust reduction during the grinding process.

[0015] Preferably, the spray assembly includes a positioning shaft rotatably connected to the inside of the workbench, the end of the positioning shaft is fixedly connected to a third gear, the third gear is meshed with the second gear, the positioning shaft is a reciprocating screw, a storage box is fixedly connected to the position of the workbench corresponding to the positioning shaft, a second cavity is opened in the storage box, a sliding frame is fixedly connected to the inside of the storage box, a sliding groove is opened on the lower surface of the sliding frame, a sliding plate is slidably connected to the circumferential surface of the positioning shaft, a plug plate is fixedly connected to the side of the sliding plate close to the storage box, the plug plate can slide along the sliding groove, a second telescopic tube is fixedly connected to the upper surface of the storage box, an auxiliary ring is fixedly connected to one end of the second telescopic tube, a plurality of auxiliary holes are opened on the side of the auxiliary ring close to the rotating half wheel, the auxiliary holes are used to spray water mist, a filling pipe is fixedly connected to the upper surface of the storage box, and the filling pipe is used for continuous water supply.

[0016] Preferably, a fixed disk is fixedly connected to one side of the first guide block, the fixed disk is fixedly connected to a fixed column, a grinding piece is rotatably provided between the fixed column and the fixed disk, and the grinding piece is used for grinding the end of the steel pipe.

[0017] Preferably, the grinding part includes a first motor fixedly connected to the upper surface of the first guide block, a fixed gear is fixedly connected to the output end of the first motor, a rotating ring is rotatably connected to the circumferential surface of the fixed column, an annular groove is provided between the rotating ring and the fixed column, a plurality of gear teeth are fixedly connected to the circumferential surface of the rotating ring, the rotating ring is meshed with the fixed gear through the plurality of gear teeth, the interior of the rotating ring is made of grinding stone material, a plurality of rotating rods are fixedly connected to the side of the rotating ring close to the fixed disk, a rotating groove is provided on the side of the fixed disk close to the rotating ring, and the rotating ring rotates along the rotating groove through the rotating rod.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The steam direct-buried insulated steel pipe welding auxiliary device described in the present invention drives the positioning rod at its output end to move downward by starting the first hydraulic cylinder. The downward movement of the positioning rod will drive the cleaning block fixed at one end thereof to abut against the steel pipe. After the cleaning block abuts against the steel pipe, the rotating half wheel is started. The rotation of the rotating half wheel will drive the cleaning block to clean around the steel pipe, thereby cleaning the joint of the steel pipe and improving the welding quality. After the cleaning is completed, the output end of the first hydraulic cylinder is retracted, and then the rotating half wheel is started again. When several welding heads on the inner wall of the rotating plate wheel are started, the joint of the steel pipe can be welded, thereby completing the welding of the steam direct-buried insulated steel pipe.

[0020] 2. The steam direct-buried insulated steel pipe welding auxiliary device described in the present invention achieves the effect of stable rotation of the rotating half-wheel by sliding a plurality of positioning columns fixed on both sides of the rotating half-wheel along the positioning grooves provided on the inner wall of the first cavity during the rotation. At the same time, welding slag may fall into the first cavity during the welding process. By fixing a protrusion at the end of the rotating half-wheel, the protrusion will first enter the first cavity during the rotation of the rotating half-wheel, and then the first cavity will be cleaned by the cleaning rod at the end of the protrusion, thereby achieving the effect of extending the service life of the positioning half-ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 is a three-dimensional diagram of the first embodiment of the present invention;

[0023] Figure 2 is a schematic structural diagram of a third motor of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the rotating half wheel of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the cleaning component of the present invention;

[0026] Figure 5 is a schematic diagram of the structure of the spray assembly of the present invention;

[0027] Figure 6 It is a schematic diagram of the internal structure of the storage box of the present invention;

[0028] Figure 7 It is a schematic structural diagram of the rotating ring of the present invention;

[0029] Figure 8 It is a schematic diagram of the split structure of the rotating ring of the present invention;

[0030] In the figure: 1. Workbench;

[0031] 2. first guide rail; 21. first guide groove; 22. first guide block; 23. fixed column; 24. rotating ring; 25. annular groove; 26. fixed plate; 27. rotating groove; 28. rotating rod; 29. ​​first motor; 210. fixed gear; 211. gear teeth;

[0032] 3. Support frame; 31. Positioning half ring; 32. Welding head; 33. Second motor; 34. Positioning gear; 35. First cavity; 36. Rotating half wheel; 37. Positioning column; 38. Positioning slot; 39. First hydraulic cylinder; 310. Positioning rod; 311. Positioning frame; 312. Positioning hole; 313. Positioning cavity; 314. Insert rod; 315. Spring; 316. Telescopic rod; 317. Cleaning block; 318. Brush; 319. Grinding block; 320. Bump; 321. Cleaning rod;

[0033] 4. third motor; 41. fixed shaft; 42. first gear; 43. second gear; 44. positioning shaft; 45. third gear; 46. sliding plate; 47. plug plate; 48. second cavity; 49. sliding frame; 410. sliding slot; 411. filling pipe; 412. storage box;

[0034] 5. Pressure box; 51. Limit block; 52. First telescopic tube; 53. Second hydraulic cylinder; 54. Connecting ring; 55. Connecting hole; 56. Auxiliary ring; 57. Auxiliary hole; 58. Second telescopic tube. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0036] Embodiment 1

[0037] like Figures 1 to 8As shown, a steam direct-buried insulated steel pipe welding auxiliary device according to an embodiment of the present invention comprises a workbench 1, two first guide rails 2 are fixedly connected to the upper surface of the workbench 1, a first guide groove 21 is provided on the upper surface of each first guide rail 2, a first guide block 22 is slidably connected in each first guide groove 21, a fixing column 23 is fixedly connected to one side of each first guide block 22, the fixing column 23 is used to insert the steel pipe, a support frame 3 is fixedly connected to the upper surface of the workbench 1, a positioning semi-ring 31 is fixedly connected to one side of the support frame 3, and the positioning semi-ring 3 1 is provided with a first cavity 35, in which a rotating half wheel 36 is rotatably connected, a plurality of welding heads 32 are fixedly connected to the inner wall of the rotating half wheel 36, a cleaning assembly is provided on the inner wall of the rotating half wheel 36, and the cleaning assembly comprises a first hydraulic cylinder 39 fixedly connected to the inner wall of the rotating half wheel 36, a positioning rod 310 is fixedly connected to the output end of the first hydraulic cylinder 39, a cleaning block 317 is fixedly connected to the end of the positioning rod 310, the cleaning block 317 is arc-shaped, and a plurality of brushes 318 are fixedly connected to the lower surface of the cleaning block 317.

[0038] Specifically, in the process of using the existing steam direct buried insulated steel pipe welding auxiliary device, when the cleaning mechanism is used to clean the circumferential surface of the steel pipe, the circumferential surface of the steel pipe is cleaned by the back and forth swinging of the brush 318, but the entire circumferential surface of the steel pipe cannot be effectively cleaned, resulting in residual metal rust or dirt on the end circumferential surface of the steel pipe during welding. After the metal rust or dirt is welded inside the steel pipe, the rust may become a stress concentration point in the weld, increasing the risk of cracks in the weld during the stress process, resulting in the problem of low welding quality;

[0039] Therefore, the invention solves this problem by setting up a corresponding structure. First, when welding the two steel pipes, the two steel pipes are respectively plugged into the fixed column 23, and then each first guide rail 2 is started to drive each first guide block 22 to move toward each other. The movement speed of the two first guide blocks 22 is the same until the ends of the two steel pipes abut against each other. The abutted steel pipes will be located in the middle of the rotating half wheel 36. At this time, the first hydraulic cylinder 39 is started to drive the positioning rod 310 at its output end to move downward. The downward movement of the positioning rod 310 will drive the cleaning block 317 fixed at one end thereof to abut against the joint of the steel pipes. The cleaning block 317 and After the steel pipes are butted, the rotating half wheel 36 is driven to rotate around the butt joint of the steel pipes for one circle. The rotation of the rotating half wheel 36 will drive the cleaning block 317 to clean the butt joint of the steel pipes, thereby effectively cleaning the entire circumferential surface of the steel pipes and cleaning the butt joint of the steel pipes, thereby achieving the effect of improving the welding quality. After the cleaning is completed, the output end of the first hydraulic cylinder 39 is retracted, and then the rotating half wheel 36 is driven to rotate around the butt joint of the steel pipes again, and at the same time, the several welding heads 32 on the inner wall of the rotating plate wheel are controlled to start, so that the cleaned butt joint of the steel pipes can be welded, thereby completing the welding of the steam direct buried thermal insulation steel pipe.

[0040] The problem of residual metal rust or dirt on the circumferential surface of the end of the steel pipe is solved. After the metal rust or dirt is welded inside the steel pipe, the rust may become a stress concentration point in the weld, increasing the risk of cracks in the weld during the stress process, resulting in low welding quality.

[0041] like Figure 2 and Figure 3 As shown, in this embodiment, a second motor 33 is fixedly connected to the upper surface of the support frame 3, a positioning gear 34 is fixedly connected to the output end of the second motor 33, and the rotating half wheel 36 is meshed with the positioning gear 34. A third motor 4 is fixedly connected to the inside of the workbench 1, a fixed shaft 41 is fixedly connected to the output end of the third motor 4, and a first gear 42 is fixedly connected to the position of the fixed shaft 41 corresponding to the rotating half wheel 36, and the first gear 42 is meshed with the rotating half wheel 36.

[0042] Specifically, by simultaneously starting the second motor 33 on the support frame 3 and the third motor 4 inside the workbench 1, the second motor 33 will drive the positioning gear 34 at its output end, thereby driving the rotating half wheel 36 meshing with the positioning gear 34, and the third motor 4 will drive the fixed shaft 41 at its output end. The rotation of the fixed shaft 41 will drive the first gear 42 fixed to the middle thereof, and the first gear 42 is also meshed with the rotating half wheel 36. The cross-section of the rotating half wheel 36 is larger than half a circular ring. Therefore, it can be continuously rotated in the positioning half ring 31 through the drive of the first gear 42 and the positioning gear 34, thereby driving the welding head 32 and the cleaning block 317 to perform comprehensive welding and cleaning on the circumferential surface of the steel pipe, thereby improving the cleaning effect and welding efficiency.

[0043] like Figure 3 As shown, in this embodiment, positioning grooves 38 are provided on both sides of the inner wall of the first cavity 35, and a plurality of positioning posts 37 are fixedly connected to both sides of the rotating half wheel 36. The rotating half wheel 36 can rotate along the positioning grooves 38 through the plurality of positioning posts 37. A protrusion 320 is fixedly connected to the bottom end of the rotating half wheel 36, and a plurality of cleaning rods 321 are fixedly connected to the end of the protrusion 320. The plurality of cleaning rods 321 are used to clean the first cavity 35.

[0044] Specifically, during the rotation of the rotating half wheel 36, a plurality of positioning posts 37 fixed on both sides thereof slide along the positioning grooves 38 provided on the inner wall of the first cavity 35, thereby achieving the effect of stably rotating the rotating half wheel 36. Meanwhile, welding slag may fall into the first cavity 35 during the welding process. By fixing a protrusion 320 at the end of the rotating half wheel 36, during the rotation of the rotating half wheel 36, the protrusion 320 will first enter the first cavity 35, and then the first cavity 35 will be cleaned by the cleaning rod 321 at the end of the protrusion 320, thereby achieving the effect of extending the service life of the positioning half ring 31.

[0045] like Figure 4 As shown, the arc surface of the cleaning block 317 of this embodiment is fixedly connected to a positioning frame 311, a positioning cavity 313 is provided on the upper surface of the positioning frame 311, the positioning rod 310 is inserted in the positioning cavity 313, a positioning hole 312 is provided on one side of the positioning rod 310 and the positioning frame 311, an insertion rod 314 is inserted in the positioning hole 312, a telescopic rod 316 is fixedly connected to one side of the insertion rod 314, the end of the telescopic rod 316 away from the insertion rod 314 is fixedly connected to the positioning frame 311, and a spring 315 is sleeved on the circumferential surface of the telescopic rod 316.

[0046] Specifically, after using the cleaning block 317 for a long time to clean the circumferential surface of the steel pipe, the brush 318 of the cleaning block will be worn to a certain extent. At this time, by pulling the insertion rod 314, the spring 315 is deformed and the telescopic rod 316 is extended. Then the insertion rod 314 will be separated from the positioning hole 312 of the positioning rod 310 and the positioning frame 311, and then the cleaning block 317 is pulled downward to separate the cleaning block 317 from the positioning rod 310, thereby achieving the effect of convenient disassembly of the cleaning block 317 and improving the working efficiency of the equipment.

[0047] like Figure 3 As shown, in this embodiment, a first hydraulic cylinder 39 is fixedly connected to the inner wall of the rotating half wheel 36 , and a grinding block 319 is fixedly connected to the output end of the first hydraulic cylinder 39 . The grinding block 319 and the cleaning block 317 are symmetrically arranged.

[0048] Specifically, by setting a grinding block 319 at the position of the symmetrical cleaning block 317, the first hydraulic cylinder 39 and the detachable components of the grinding block 319 are the same as those of the cleaning block 317 and can be replaced. The setting of the grinding block 319 is integrated, which improves the processing efficiency of the steel pipe and greatly improves the production efficiency of the steel pipe.

[0049] Embodiment 2

[0050] like Figures 1 to 8 As shown, comparative example 1, wherein another implementation of the present invention is: a spraying assembly is arranged on the upper surface of the workbench 1, the spraying assembly includes two pressure boxes 5, each pressure box 5 is fixedly connected to the upper surface of a first telescopic tube 52, each pressure box 5 is fixedly connected to the upper surface of a limit block 51, the limit block 51 is used to fix the first telescopic tube 52, one end of each first telescopic tube 52 is fixedly connected to a connecting ring 54, a plurality of connecting holes 55 are opened on the inner wall of each connecting ring 54, each pressure box 5 is fixedly connected to a second hydraulic cylinder 53 on one side close to the connecting ring 54, the output end of the second hydraulic cylinder 53 is fixedly connected to the connecting ring 54, and the two connecting rings 54 can clamp and spray the butt joint of the steel pipe.

[0051] Specifically, a spraying assembly is arranged on the workbench 1, and two pressure boxes 5 are used as a power source for spraying flux. Each pressure box 5 is connected to a connecting ring 54 through a first telescopic tube 52. A plurality of connecting holes 55 on the connecting ring 54 can be used to connect a spray nozzle to achieve a spraying operation. The limit block 51 ensures that the first telescopic tube 52 is firmly mounted on the pressure box 5 to prevent movement. The second hydraulic cylinder 53 enables the connecting ring 54 to be dynamically adjusted according to the size and position of the steel pipe joint. The connecting ring 54 is pushed by the output end of the second hydraulic cylinder 53. The two connecting rings 54 can accurately clamp the joint of the steel pipe to achieve precise spraying of the area, thereby improving the flexibility and accuracy of the spraying operation, ensuring that the joint of the steel pipe is fully sprayed, and improving work efficiency.

[0052] like Figure 5 As shown, in this embodiment, one end of the fixed shaft 41 is fixedly connected to a second gear 43, and the second gear 43 is transmission-connected to a spray assembly, which is used for dust reduction during the grinding process.

[0053] Specifically, the fixed shaft 41 drives the spray assembly through the second gear 43 to achieve dust reduction during the grinding process, effectively reduce grinding dust, and improve the working environment.

[0054] like Figure 5 and Figure 6 As shown, the spray assembly of this embodiment includes a positioning shaft 44 rotatably connected to the inside of the workbench 1, a third gear 45 is fixedly connected to the end of the positioning shaft 44, the third gear 45 is meshed with the second gear 43, the positioning shaft 44 is a reciprocating screw, a storage box 412 is fixedly connected to the position of the workbench 1 corresponding to the positioning shaft 44, a second cavity 48 is provided in the storage box 412, a sliding frame 49 is fixedly connected to the inside of the storage box 412, a sliding groove 410 is provided on the lower surface of the sliding frame 49, and a sliding groove 410 is provided on the circumferential surface of the positioning shaft 44. A sliding plate 46 is dynamically connected, and a plug plate 47 is fixedly connected to one side of the sliding plate 46 close to the storage box 412. The plug plate 47 can slide along the sliding groove 410. A second telescopic tube 58 is fixedly connected to the upper surface of the storage box 412, and an auxiliary ring 56 is fixedly connected to one end of the second telescopic tube 58. A plurality of auxiliary holes 57 are opened on the side of the auxiliary ring 56 close to the rotating half wheel 36. The auxiliary holes 57 are used to spray water mist. A filling pipe 411 is fixedly connected to the upper surface of the storage box 412, and the filling pipe 411 is used for continuous water supply.

[0055] Specifically, the second gear 43 on the fixed shaft 41 is meshed with the third gear 45 at the end of the positioning shaft 44. When the second gear 43 rotates, it will drive the positioning shaft 44 (reciprocating screw) to rotate inside the workbench 1. The rotation of the positioning shaft 44 drives the sliding plate 46 on its circumferential surface to slide back and forth along the sliding groove 410 in the sliding frame 49, thereby pushing the plug plate 47 to move in the second cavity 48 of the storage box 412, thereby intermittently changing the volume of the second cavity 48. This reciprocating motion causes the water stored in the second cavity 48 to be intermittently pressed out through the second telescopic tube 58, and finally sprayed out in a mist form from several auxiliary holes 57 on the auxiliary ring 56, forming water mist covering the grinding work area to achieve a dust reduction effect. The design of the filling pipe 411 ensures that there is sufficient water in the storage box 412, and can continuously supply water to maintain the spray operation, effectively reducing the dust generated during the grinding process, improving the working environment, and improving the dust reduction efficiency.

[0056] like Figure 7 As shown, in this embodiment, a fixed plate 26 is fixedly connected to one side of the first guide block 22, and the fixed plate 26 is fixedly connected to the fixed column 23. A grinding piece is rotatably arranged between the fixed column 23 and the fixed plate 26, and the grinding piece is used to grind the end of the steel pipe.

[0057] Specifically, supported by the fixed plate 26 and the fixed column 23, the grinding piece rotates on the end of the steel pipe for grinding, thereby improving the grinding accuracy and efficiency, ensuring the flatness and smoothness of the end of the steel pipe, and facilitating subsequent welding.

[0058] like Figure 8 As shown, the grinding piece of this embodiment includes a first motor 29 fixedly connected to the upper surface of the first guide block 22, a fixed gear 210 is fixedly connected to the output end of the first motor 29, a rotating ring 24 is rotatably connected to the circumferential surface of the fixed column 23, an annular groove 25 is provided between the rotating ring 24 and the fixed column 23, a plurality of gear teeth 211 are fixedly connected to the circumferential surface of the rotating ring 24, the rotating ring 24 is meshed with the fixed gear 210 through the plurality of gear teeth 211, the interior of the rotating ring 24 is made of grinding stone, a plurality of rotating rods 28 are fixedly connected to the side of the rotating ring 24 close to the fixed disk 26, a rotating groove 27 is provided on the side of the fixed disk 26 close to the rotating ring 24, and the rotating ring 24 rotates along the rotating groove 27 through the rotating rod 28.

[0059] Specifically, the fixed gear 210 is driven to rotate by the first motor 29, and the fixed gear 210 is meshed with the gear teeth 211 on the rotating ring 24, thereby driving the rotating ring 24 to rotate on the circumferential surface of the fixed column 23. The interior of the rotating ring 24 is made of grinding stone material, so that it has excellent grinding performance. At the same time, the rotating ring 24 is rotated along the rotating groove 27 on the fixed plate 26 through a plurality of rotating rods 28, ensuring the stability of the rotation of the rotating ring 24. As the rotating ring 24 rotates, the grinding stone material inside it performs uniform and efficient grinding operations on the end of the steel pipe, which facilitates the subsequent welding of the end with other steel pipes and improves the welding quality.

[0060] Working principle: first, when welding two steel pipes, the two steel pipes are respectively inserted into the fixed column 23, and then each first guide rail 2 is started to drive each first guide block 22 to move toward each other. The movement speed of the two first guide blocks 22 is the same until the ends of the two steel pipes are abutted. The abutted steel pipes will be located in the middle of the rotating half wheel 36. At this time, the first hydraulic cylinder 39 is started to drive the positioning rod 310 at its output end to move downward. The downward movement of the positioning rod 310 will drive the cleaning block 317 fixed at one end thereof to abut against the joint of the steel pipe. After the cleaning block 317 abuts against the steel pipe, the cleaning block 317 is By simultaneously starting the second motor 33 on the support frame 3 and the third motor 4 inside the workbench 1, the second motor 33 will drive the positioning gear 34 at its output end, thereby driving the rotating half wheel 36 meshing with the positioning gear 34, and the third motor 4 will drive the fixed shaft 41 at its output end. The rotation of the fixed shaft 41 will drive the first gear 42 fixed to the middle thereof, and the first gear 42 is also meshed with the rotating half wheel 36. The cross-section of the rotating half wheel 36 is larger than half a circular ring, so it can be continuously rotated in the positioning half ring 31 by being driven by the first gear 42 and the positioning gear 34;

[0061] By driving the rotating half wheel 36 to rotate around the joint of the steel pipe for one circle, the rotation of the rotating half wheel 36 will drive the cleaning block 317 to clean the joint of the steel pipe, thereby effectively cleaning the entire circumferential surface of the steel pipe and cleaning the joint of the steel pipe, thereby achieving the effect of improving the welding quality; after the cleaning is completed, the output end of the first hydraulic cylinder 39 is retracted, and then the rotating half wheel 36 is driven to rotate around the joint of the steel pipe again, and at the same time, the several welding heads 32 on the inner wall of the rotating plate wheel are controlled to start, so that the cleaned joint of the steel pipe can be welded, thereby completing the welding of the steam direct buried thermal insulation steel pipe;

[0062] During the rotation of the rotating half wheel 36, the plurality of positioning posts 37 fixed on both sides thereof slide along the positioning grooves 38 provided on the inner wall of the first cavity 35, so as to achieve the effect of making the rotating half wheel 36 rotate stably. Meanwhile, welding slag may fall into the first cavity 35 during the welding process. Since the protrusion 320 is fixed on the end of the rotating half wheel 36, during the rotation of the rotating half wheel 36, the protrusion 320 will first enter the first cavity 35, and then the first cavity 35 will be cleaned by the cleaning rod 321 at the end of the protrusion 320, so as to achieve the effect of extending the service life of the positioning half ring 31.

[0063] After the cleaning block 317 is used for cleaning the circumferential surface of the steel pipe for a long time, the brush 318 of the cleaning block will be worn to a certain extent. At this time, by pulling the insertion rod 314, the spring 315 is deformed and the telescopic rod 316 is extended, and then the insertion rod 314 is separated from the positioning rod 310 and the positioning hole 312 of the positioning frame 311, and then the cleaning block 317 is pulled downward to separate the cleaning block 317 from the positioning rod 310, so as to achieve the effect of conveniently disassembling the cleaning block 317 and improve the working efficiency of the equipment;

[0064] By arranging a grinding block 319 at the position of the symmetrical cleaning block 317, the first hydraulic cylinder 39 and the detachable components of the grinding block 319 are the same as those of the cleaning block 317, and both can be replaced. The arrangement of the grinding block 319 is integrated, which improves the processing efficiency of the steel pipe, and greatly improves the production efficiency of the steel pipe;

[0065] In addition, by arranging a spraying assembly on the workbench 1, two pressure boxes 5 are used as a power source for spraying flux, each pressure box 5 is connected to a connecting ring 54 through a first telescopic tube 52, and a plurality of connecting holes 55 on the connecting ring 54 can be used to connect a spray nozzle to realize spraying operation, and a limit block 51 ensures that the first telescopic tube 52 is firmly mounted on the pressure box 5 to prevent movement, and the second hydraulic cylinder 53 enables the connecting ring 54 to be dynamically adjusted according to the size and position of the steel pipe joint, and the connecting ring 54 is pushed by the output end of the second hydraulic cylinder 53, and the two connecting rings 54 can accurately clamp the joint of the steel pipe to realize accurate spraying of the area, thereby improving the flexibility and accuracy of the spraying operation, ensuring that the joint of the steel pipe is fully sprayed, and improving work efficiency;

[0066] In addition, the second gear 43 on the fixed shaft 41 is meshed with the third gear 45 at the end of the positioning shaft 44. When the second gear 43 rotates, it will drive the positioning shaft 44 (reciprocating screw) to rotate inside the workbench 1. The rotation of the positioning shaft 44 drives the sliding plate 46 on its circumferential surface to slide back and forth along the sliding groove 410 in the sliding frame 49, thereby pushing the plug plate 47 to move in the second cavity 48 of the storage box 412, thereby intermittently changing the volume of the second cavity 48. This reciprocating motion causes the water stored in the second cavity 48 to be intermittently pressed out through the second telescopic tube 58, and finally sprayed out in a mist form from several auxiliary holes 57 on the auxiliary ring 56, forming a water mist covering the grinding work area to achieve a dust reduction effect. The design of the filling pipe 411 ensures that there is sufficient water in the storage box 412, and can continuously supply water to maintain the spray operation, effectively reducing the dust generated during the grinding process, improving the working environment, and improving the dust reduction efficiency.

[0067] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A steam direct-buried insulated steel pipe welding auxiliary device, comprising a workbench (1), wherein two first guide rails (2) are fixedly connected to the upper surface of the workbench (1), each of the first guide rails (2) is provided with a first guide groove (21) on the upper surface, each of the first guide grooves (21) is slidably connected with a first guide block (22), one side of each of the first guide blocks (22) is fixedly connected with a fixing column (23), the fixing column (23) is used for inserting a steel pipe, the upper surface of the workbench (1) is fixedly connected with a support frame (3), one side of the support frame (3) is fixedly connected with a positioning half ring (31), a first cavity (35) is provided inside the positioning half ring (31), a rotating half wheel (36) is rotatably connected inside the first cavity (35), and a plurality of welding heads (32) are fixedly connected to the inner wall of the rotating half wheel (36), characterized in that: The inner wall of the rotating half wheel (36) is provided with a cleaning component; The cleaning assembly comprises a first hydraulic cylinder (39) fixedly connected to the inner wall of the rotating half wheel (36); a positioning rod (310) is fixedly connected to the output end of the first hydraulic cylinder (39); a cleaning block (317) is fixedly connected to the end of the positioning rod (310); the cleaning block (317) is in an arc shape; and a plurality of brushes (318) are fixedly connected to the lower surface of the cleaning block (317).

2. The welding auxiliary device for steam direct buried insulated steel pipe according to claim 1 is characterized in that: A second motor (33) is fixedly connected to the upper surface of the support frame (3), a positioning gear (34) is fixedly connected to the output end of the second motor (33), and the rotating half wheel (36) is meshed with the positioning gear (34). A third motor (4) is fixedly connected to the inside of the workbench (1), a fixed shaft (41) is fixedly connected to the output end of the third motor (4), and a first gear (42) is fixedly connected to the fixed shaft (41) at a position corresponding to the rotating half wheel (36), and the first gear (42) is meshed with the rotating half wheel (36).

3. The welding auxiliary device for steam direct buried insulated steel pipe according to claim 1 is characterized in that: Positioning grooves (38) are provided on both sides of the inner wall of the first cavity (35); a plurality of positioning posts (37) are fixedly connected to both sides of the rotating half wheel (36); the rotating half wheel (36) can rotate along the positioning grooves (38) through the plurality of positioning posts (37); a protrusion (320) is fixedly connected to the bottom end of the rotating half wheel (36); a plurality of cleaning rods (321) are fixedly connected to the end of the protrusion (320); and the plurality of cleaning rods (321) are used for cleaning the first cavity (35).

4. The welding auxiliary device for steam direct buried insulated steel pipe according to claim 1 is characterized in that: The arc surface of the cleaning block (317) is fixedly connected to a positioning frame (311), the upper surface of the positioning frame (311) is provided with a positioning cavity (313), the positioning rod (310) is inserted into the positioning cavity (313), one side of the positioning rod (310) and the positioning frame (311) are provided with a positioning hole (312), an insertion rod (314) is inserted into the positioning hole (312), one side of the insertion rod (314) is fixedly connected to a telescopic rod (316), one end of the telescopic rod (316) away from the insertion rod (314) is fixedly connected to the positioning frame (311), and a spring (315) is sleeved on the circumferential surface of the telescopic rod (316).

5. The welding auxiliary device for steam direct buried insulated steel pipe according to claim 1 is characterized in that: A first hydraulic cylinder (39) is fixedly connected to the inner wall of the rotating half wheel (36), a grinding block (319) is fixedly connected to the output end of the first hydraulic cylinder (39), and the grinding block (319) and the cleaning block (317) are symmetrically arranged.

6. The welding auxiliary device for steam direct buried insulated steel pipe according to claim 1 is characterized in that: A spraying assembly is arranged on the upper surface of the workbench (1), and the spraying assembly comprises two pressure boxes (5), each of the pressure boxes (5) is fixedly connected to a first telescopic tube (52) on its upper surface, each of the pressure boxes (5) is fixedly connected to a limit block (51) on its upper surface, and the limit block (51) is used to fix the first telescopic tube (52), one end of each of the first telescopic tubes (52) is fixedly connected to a connecting ring (54), and the inner wall of each of the connecting rings (54) is provided with a plurality of connecting holes (55), and each of the pressure boxes (5) is fixedly connected to a second hydraulic cylinder (53) on one side close to the connecting ring (54), and the output end of the second hydraulic cylinder (53) is fixedly connected to the connecting ring (54), and the two connecting rings (54) can clamp and spray the butt joint of the steel pipe.

7. The welding auxiliary device for steam direct buried insulated steel pipe according to claim 2 is characterized in that: One end of the fixed shaft (41) is fixedly connected to a second gear (43), and the second gear (43) is drivingly connected to a spray assembly, and the spray assembly is used for dust reduction during the grinding process.

8. The welding auxiliary device for steam direct buried insulated steel pipe according to claim 7 is characterized in that: The spray assembly comprises a positioning shaft (44) rotatably connected to the inside of the workbench (1), a third gear (45) is fixedly connected to the end of the positioning shaft (44), the third gear (45) is meshed with the second gear (43), the positioning shaft (44) is a reciprocating screw, a storage box (412) is fixedly connected to the position of the workbench (1) corresponding to the positioning shaft (44), a second cavity (48) is provided in the storage box (412), a sliding frame (49) is fixedly connected to the inside of the storage box (412), a sliding groove (410) is provided on the lower surface of the sliding frame (49), and a sliding groove (410) is provided on the circumferential surface of the positioning shaft (44). A sliding plate (46) is connected, and a plug plate (47) is fixedly connected to one side of the sliding plate (46) close to the storage box (412), and the plug plate (47) can slide along the sliding groove (410). A second telescopic tube (58) is fixedly connected to the upper surface of the storage box (412), and an auxiliary ring (56) is fixedly connected to one end of the second telescopic tube (58). A plurality of auxiliary holes (57) are opened on the side of the auxiliary ring (56) close to the rotating half wheel (36), and the auxiliary holes (57) are used to spray water mist. A filling pipe (411) is fixedly connected to the upper surface of the storage box (412), and the filling pipe (411) is used to continuously supply water.

9. The welding auxiliary device for steam direct buried insulated steel pipe according to claim 1 is characterized in that: A fixed disk (26) is fixedly connected to one side of the first guide block (22), and the fixed disk (26) is fixedly connected to the fixed column (23). A grinding piece is rotatably arranged between the fixed column (23) and the fixed disk (26), and the grinding piece is used for grinding the end of the steel pipe.

10. The steam direct buried insulated steel pipe welding auxiliary device according to claim 9, characterized in that: The grinding member comprises a first motor (29) fixedly connected to the upper surface of the first guide block (22); a fixed gear (210) is fixedly connected to the output end of the first motor (29); a rotating ring (24) is rotatably connected to the circumferential surface of the fixed column (23); an annular groove (25) is provided between the rotating ring (24) and the fixed column (23); a plurality of gear teeth (211) are fixedly connected to the circumferential surface of the rotating ring (24); the rotating ring (24) meshes with the fixed gear (210) via the plurality of gear teeth (211); the interior of the rotating ring (24) is made of grinding stone; a plurality of rotating rods (28) are fixedly connected to a side of the rotating ring (24) close to the fixed disk (26); a rotating groove (27) is provided on a side of the fixed disk (26) close to the rotating ring (24); the rotating ring (24) rotates along the rotating groove (27) via the rotating rod (28).

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