A welding device for deaerator shell

Abstract

The present invention discloses a welding device for a deaerator shell, which relates to the technical field of deaerator welding, and comprises: a bearing plate, a through hole for a deaerator head to pass through is provided in the middle of the bearing plate, and a swivel is rotatably connected to the lower side of the bearing plate; a first clamping assembly, the first clamping assembly is installed on both sides of the bearing plate and is used to clamp on a deaerator water tank; a second clamping assembly, the second clamping assembly is installed on the upper end surface of the bearing plate and is used to dock and fix the deaerator head with the deaerator water tank; a driving assembly, the driving assembly is installed on the bearing plate and is used to drive the swivel to rotate; the present invention can realize automatic tracking welding of special welding trajectories of the deaerator through the cooperation of the driving assembly, the position guiding assembly and the welding assembly, and the rotation of the swivel cooperates with the telescopic movement of the telescopic rod. Compared with the manual welding method, the quality and efficiency of welding are improved, and the welding device has a simple and compact structure and low production cost.

Description

Technical Field

[0001] The invention relates to the technical field of deaerator welding, and in particular to a welding device for a deaerator shell. Background Art

[0002] The deaerator is used to remove oxygen and other non-condensable gases from boiler feed water to ensure the quality of feed water. It is mainly composed of a deaerator water tank and a deaerator tower head welded above the deaerator water tank. When producing the deaerator, it is necessary to open a circular hole corresponding to the size of the deaerator tower head on the arc side wall of the deaerator water tank, and then lift the deaerator tower head to the circular hole for welding to form a complete deaerator shell.

[0003] Before welding the deaerator, the deaerator water tank and the deaerator tower head need to be aligned and fixed. At present, a bracket is often welded on the surface of the deaerator water tank, and then the positioning component is installed on the bracket to fix the deaerator tower head. After welding, the bracket needs to be cut and removed, and the surface of the deaerator water tank needs to be polished and restored, which is very cumbersome. In addition, since the welding tracks are not in the same plane, most welding operations are still completed manually, the labor intensity of the staff is high, the welding processing efficiency is low, and after welding, the staff needs to manually knock off the weld skin on the welding surface to check the welding quality, and the degree of automation of welding production is low. Therefore, a welding device for the deaerator shell is needed to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a welding device for a deaerator shell to solve the problems existing in the prior art mentioned in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A welding device for a deaerator shell, comprising:

[0007] A bearing plate, wherein a through hole is provided in the middle of the bearing plate for the deaerator head to pass through, and a swivel is rotatably connected to the lower side of the bearing plate;

[0008] A first clamping assembly, which is installed on both sides of the bearing plate and is used to clamp on the deaeration water tank;

[0009] A second clamping assembly, which is mounted on the upper end surface of the bearing plate and is used to dock and fix the deaeration tower head with the deaeration water tank;

[0010] A driving assembly, which is mounted on the bearing plate and is used to drive the rotating ring to rotate;

[0011] A position guide assembly, wherein the position guide assembly is installed on the swivel, and the position guide assembly cooperates with the swivel to enable the welding assembly to automatically follow the weld track of the deaerator tower head and the deaerator water tank, and automatically adjust the welding position;

[0012] The welding assembly is installed on the position guide assembly and is used to weld the joint between the deaerator tower head and the deaerator water tank;

[0013] A detection auxiliary component is installed on a position guiding component, and the position guiding component is used to remove weld skin formed by welding.

[0014] Preferably, the first clamping assembly includes a clamping arm, a screw and a nut, the clamping arms are arranged in pairs and rotatably connected to the side of the supporting plate, the lower end of the clamping arm is provided with a connecting hole, the connecting hole of the clamping arm is connected to a screw, and the screw is threadedly connected to a nut.

[0015] Preferably, the second clamping assembly includes a clamping block, a lead screw and a crank, the clamping blocks are arranged in pairs and are horizontally slidably connected to the supporting plate, the lead screw is rotatably connected to the support of the supporting plate, the threaded hole on the clamping block is threadedly connected to the lead screw, the threads on both sides of the lead screw are arranged in opposite directions, and one end of the lead screw is keyed to the crank.

[0016] Preferably, the driving assembly includes a ring gear, a driving motor and a driving gear, the ring gear is keyed to the rotating ring, the driving motor is mounted on the bearing plate, and the output end of the driving motor is keyed to the driving gear meshing with the ring gear.

[0017] Preferably, the position guiding assembly comprises a telescopic sleeve, a telescopic rod and a transverse adjustment rod, the telescopic sleeve being vertically mounted on a swivel, the telescopic rod being slidably connected in the telescopic sleeve, a compression spring for pushing the telescopic rod to slide downward being provided in the telescopic sleeve, a connecting frame being provided at the lower end of the telescopic rod, the transverse adjustment rod being slidably connected in the connecting frame, one end of the transverse adjustment rod being rotatably connected to a positioning wheel, a fastening bolt being threadedly connected in a threaded hole on a side surface of the connecting frame, and the fastening bolt being used to fix the position of the transverse adjustment rod.

[0018] Preferably, the welding assembly comprises a mounting bracket and a welding gun, the mounting bracket is welded to the transverse adjustment rod, and the welding gun is mounted on the mounting bracket.

[0019] Preferably, the detection auxiliary component includes a shell, a sliding sleeve and a push rod, the shell is mounted on the lateral adjustment rod, the sliding sleeve is arranged at one end inside the shell, the push rod is slidably connected in the sliding sleeve, an energy storage spring is arranged in the sliding sleeve, one end of the push rod is connected to a connecting plate, a knocking head is connected to the connecting plate, and the detection auxiliary component also includes a transmission structure for driving the push rod to store energy and release energy in the energy storage spring.

[0020] Preferably, the transmission structure includes a driving bevel gear, a transmission shaft and a driven bevel gear, the driving bevel gear is keyed to the rotating shaft of the positioning wheel, the transmission shaft is rotatably connected to the support in the shell, one end of the transmission shaft is keyed to the driven bevel gear meshing with the driving bevel gear, the other end of the transmission shaft is keyed to a toggle block, the push rod is connected to a toggle rod, and the toggle block is used to toggle the toggle rod.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention can quickly and stably position the deaeration water tank and the deaeration tower head to be welded through the coordinated arrangement of the first clamping assembly and the second clamping assembly, without the need for positioning by means of a welding bracket, making the welding positioning operation more convenient and improving the efficiency of the welding process.

[0023] 2. The present invention can realize automatic tracking welding of special welding trajectories of the deaerator by cooperating the driving assembly, the position guiding assembly and the welding assembly, and the rotation of the swivel cooperates with the telescopic movement of the telescopic rod. Compared with the manual welding method, the quality and efficiency of welding are improved, and the welding device has a simple and compact structure and low production cost.

[0024] 3. The present invention cooperates with the position guiding component and the detection auxiliary component, and uses the positioning wheel to drive the knocking head to knock and remove the weld skin on the welding surface, which is convenient for the staff to check the welding quality later. At the same time, there is no need to add power equipment, which reduces production costs and is more energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front perspective structural schematic diagram of the present invention.

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure when viewed from above of the present invention.

[0027] Figure 3 It is a schematic structural diagram of the swivel and the connecting parts thereon of the present invention.

[0028] Figure 4 It is a schematic diagram of the structure of the position guiding component of the present invention.

[0029] Figure 5It is a schematic diagram of the structure of the detection auxiliary component of the present invention.

[0030] Figure 6 It is a schematic diagram of the internal structure of the shell of the present invention.

[0031] Figure 7 For the present invention Figure 6 Schematic diagram of the local enlarged structure at point A in the middle.

[0032] Figure 8 It is a schematic diagram of the state of the deaerator during welding of the present invention.

[0033] In the figure: 1. bearing plate; 2. first clamping assembly; 21. clamping arm; 22. screw; 23. nut; 3. second clamping assembly; 31. clamping block; 32. lead screw; 33. crank handle; 4. swivel; 5. driving assembly; 51. gear ring; 52. driving motor; 53. driving gear; 6. position guiding assembly; 61. telescopic sleeve; 62. telescopic rod; 63. lateral adjustment rod; 64. positioning wheel; 65. fastening bolt; 7. welding assembly; 71. mounting bracket; 72. welding gun; 8. detection auxiliary assembly; 81. housing; 82. sliding sleeve; 83. push rod; 84. energy storage spring; 85. lever; 86. connecting plate; 87. knocking head; 88. driving bevel gear; 89. transmission shaft; 810. driven bevel gear; 811. lever block; 9. deaerator water tank; 10. deaerator tower head. DETAILED DESCRIPTION

[0034] 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.

[0035] See also Figure 1-8 , the present invention provides the following technical solutions:

[0036] A welding device for a deaerator shell comprises: a bearing plate 1, wherein a through hole is provided in the middle of the bearing plate 1 for a deaerator head 10 to pass through, and a swivel 4 is rotatably connected to the lower side of the bearing plate 1; a first clamping assembly 2, wherein the first clamping assembly 2 is installed on both sides of the bearing plate 1 and is used to clamp on a deaerator water tank 9; the first clamping assembly 2 comprises a clamping arm 21, a screw rod 22 and a nut 23, wherein the clamping arm 21 is arranged in pairs and rotatably connected to the side of the bearing plate 1, a connecting hole is provided at the lower end of the clamping arm 21, a screw rod 22 is connected in the connecting hole of the clamping arm 21, a nut 23 is threadedly connected on the screw 22, and the middle part of the clamping arm 21 is arc-shaped, which is convenient for fitting with the surface of the deaerator water tank 9, and the first clamping assembly 2 can stably fix the entire welding device on the deaerator water tank 9.

[0037] The second clamping assembly 3 is installed on the upper end surface of the supporting plate 1 and is used to dock and fix the deaerator tower head 10 with the deaerator water tank 9; the second clamping assembly 3 includes a clamping block 31, a screw 32 and a crank 33. The clamping blocks 31 are arranged in pairs and are horizontally slidably connected to the supporting plate 1. An arc-shaped groove is provided in the middle of the clamping block 31 to facilitate the clamping block 31 to fit the side wall of the deaerator tower head 10. The support of the supporting plate 1 is rotatably connected with a screw 32. The threaded hole on the clamping block 31 is threadedly connected with the screw 32. The threads on both sides of the screw 32 are set in opposite directions. Through the reverse setting of the threads on both sides of the screw 32, the rotation of the screw 32 can drive the clamping blocks 31 connected on both sides thereof to move closer to or away from each other. One end of the screw 32 is keyed to a crank 33, and the deaerator tower head 10 can be positioned by shaking the crank 33.

[0038] The driving assembly 5 is installed on the supporting plate 1 and is used to drive the rotating ring 4 to rotate; the driving assembly 5 includes a ring gear 51, a driving motor 52 and a driving gear 53, the ring gear 51 is keyed to the rotating ring 4, the driving motor 52 is installed on the supporting plate 1, and the output end of the driving motor 52 is keyed to the driving gear 53 meshing with the ring gear 51. The driving assembly 5 drives the rotating ring 4 to rotate, thereby realizing the rotational movement of the position guiding assembly 6, the welding assembly 7 and the detection auxiliary assembly 8.

[0039] The position guide component 6 is installed on the swivel 4. The position guide component 6 cooperates with the swivel 4 to enable the welding component 7 to automatically follow the welding seam trajectory of the deaerator tower head 10 and the deaerator water tank 9 and automatically adjust the welding position; the position guide component 6 includes a telescopic sleeve 61, a telescopic rod 62 and a lateral adjustment rod 63. The telescopic sleeve 61 is vertically installed on the swivel 4, and the telescopic rod 62 is slidably connected to the telescopic sleeve 61. The telescopic sleeve 61 is provided with a compression spring for pushing the telescopic rod 62 to slide downward. The lower end of the telescopic rod 62 is provided with a connection The horizontal adjustment rod 63 is slidably connected in the connecting frame, one end of the horizontal adjustment rod 63 is rotatably connected to a positioning wheel 64, and a fastening bolt 65 is threadedly connected in the threaded hole on the side of the connecting frame. The fastening bolt 65 is used to fix the position of the horizontal adjustment rod 63; the horizontally adjustable setting of the horizontal adjustment rod 63 can realize the welding of deaerator tower heads 10 with different diameters, thereby improving the applicability of the welding device. Through the telescopic movement of the telescopic rod 62 and the rotation coordination of the swivel 4, the welding assembly 7 can move along the welding trajectory to realize automatic welding.

[0040] The welding assembly 7 is installed on the position guiding assembly 6, and is used to weld the joint between the deaerator tower head 10 and the deaerator water tank 9; the welding assembly 7 includes a mounting bracket 71 and a welding gun 72, the mounting bracket 71 is welded to the transverse adjustment rod 63, and the mounting bracket 71 is equipped with a welding gun 72. By connecting the control device and the welding wire to the welding gun 72, the deaerator shell can be welded.

[0041] An inspection auxiliary component 8 is installed on a position guide component 6, and the position guide component 6 is used to remove the weld skin formed by welding; the inspection auxiliary component 8 includes a shell 81, a sleeve 82 and a push rod 83, the shell 81 is installed on a lateral adjustment rod 63, the sleeve 82 is arranged at one end of the shell 81, the push rod 83 is slidably connected in the sleeve 82, and an energy storage spring 84 is arranged in the sleeve 82, one end of the push rod 83 is connected to a connecting plate 86, and a knocking head 87 is connected to the connecting plate 86, the inspection auxiliary component 8 also includes a transmission structure for driving the push rod 83 to store energy and release energy in the energy storage spring 84, and the energy storage spring 84 is quickly released after storing energy, and can drive the knocking head 87 to knock on the welding surface to remove the weld skin so that the staff can check the welding quality.

[0042] The transmission structure includes an active bevel gear 88, a transmission shaft 89 and a driven bevel gear 810. The active bevel gear 88 is keyed to the rotating shaft of the positioning wheel 64. The transmission shaft 89 is rotatably connected to the support in the housing 81. One end of the transmission shaft 89 is keyed to the driven bevel gear 810 meshing with the active bevel gear 88. The other end of the transmission shaft 89 is keyed to a toggle block 811. The push rod 83 is connected to a toggle rod 85. The toggle block 811 is used to toggle the toggle rod 85. The rotation of the positioning wheel 64 drives the energy storage spring 84 to store energy. There is no need to add power equipment to the detection auxiliary component 8, so that the welding device is more energy-saving and environmentally friendly.

[0043] The working process of the present invention is as follows:

[0044] When it is necessary to weld the deaerator shell, first rotate the clamping arm 21, engage the clamping arm 21 on the surface of the deaerator water tank 9, insert the screw 22 into the hole at the lower end of the clamping arm 21, and install the nut 23 to one end of the screw 22, tighten the nut 23 so that the welding device is stably fixed on the deaerator water tank 9; lift the deaerator tower head 10 to the top of the deaerator water tank 9, and make the deaerator tower head 10 pass through the through hole in the middle of the supporting plate 1 and dock with the welding hole on the deaerator water tank 9, shake the handle 33 to make the lead screw 32 rotate, and the lead screw 32 drives the clamping blocks 31 on both sides thereof to move closer to each other under the action of the thread, and the clamping blocks 31 clamp the deaerator tower head 10 so that the deaerator tower head 10 and the deaerator water tank 9 are stably docked and fixed.

[0045] The position of the transverse adjustment rod 63 is adjusted according to the diameter of the deaerator tower head 10, and the transverse adjustment rod 63 is moved so that the positioning wheel 64 is located at the edge of the circular hole on the deaerator water tank 9, and the fastening bolt 65 is tightened to fix the transverse adjustment rod 63; the drive motor 52 is started, and the drive motor 52 drives the swivel 4 to rotate through the drive gear 53 and the ring gear 51, and the swivel 4 drives the position guide assembly 6 to rotate, and the positioning wheel 64 causes the telescopic rod 62 to produce a telescopic movement according to the trajectory of the surface of the deaerator water tank 9, which can ensure that the welding gun 72 always maintains a suitable distance from the welding position, thereby realizing the automatic welding operation of the deaerator shell.

[0046] During the welding process of the welding device, the positioning wheel 64 drives the transmission shaft 89 to rotate through the active bevel gear 88 and the driven bevel gear 810, and the transmission shaft 89 drives the toggle block 811 at the other end to rotate. The arc blade set on the toggle block 811 toggles the toggle rod 85, so that the push rod 83 compresses the energy storage spring 84 to store energy. When the toggle rod 85 moves to the plane position on the other side of the arc blade, the energy storage spring 84 releases energy to drive the push rod 83 to pop out, so that the knocking head 87 knocks and removes the weld skin at the welding completion position, which is convenient for the staff to check the welding quality.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for a deaerator housing, characterized in that: include: A supporting plate (1), wherein a through hole is provided in the middle of the supporting plate (1) for the deaerator head (10) to pass through, and a swivel (4) is rotatably connected to the lower side of the supporting plate (1); A first clamping assembly (2), the first clamping assembly (2) being mounted on both sides of the bearing plate (1) and used for clamping on the deoxygenated water tank (9); A second clamping assembly (3), the second clamping assembly (3) being mounted on the upper end surface of the bearing plate (1) and used for docking and fixing the deaeration tower head (10) and the deaeration water tank (9); A driving assembly (5), the driving assembly (5) being mounted on the bearing plate (1) and used to drive the rotating ring (4) to rotate; A position guide assembly (6), wherein the position guide assembly (6) is mounted on the rotating ring (4), and the position guide assembly (6) cooperates with the rotating ring (4) to enable the welding assembly (7) to automatically follow the welding seam trajectory of the deaerator tower head (10) and the deaerator water tank (9), and automatically adjust the welding position; the position guide assembly (6) comprises a telescopic sleeve (61), a telescopic rod (62) and a transverse adjustment rod (63); the telescopic sleeve (61) is vertically mounted on the rotating ring (4); the telescopic rod (62) is slidably connected to the telescopic sleeve (61); a compression spring for pushing the telescopic rod (62) to slide downward is provided in the telescopic sleeve (61); a connecting frame is provided at the lower end of the telescopic rod (62); the transverse adjustment rod (63) is slidably connected to the connecting frame; one end of the transverse adjustment rod (63) is rotatably connected to a positioning wheel (64); a fastening bolt (65) is threadedly connected to a threaded hole on the side of the connecting frame; the fastening bolt (65) is used to fix the position of the transverse adjustment rod (63); The welding assembly (7) is installed on the position guide assembly (6) and is used to weld the joint between the deaerator tower head (10) and the deaerator water tank (9); A detection auxiliary component (8), wherein the detection auxiliary component (8) is mounted on a position guide component (6), and the position guide component (6) is used to remove weld skin formed by welding; the detection auxiliary component (8) comprises a housing (81), a sliding sleeve (82) and a push rod (83), wherein the housing (81) is mounted on a transverse adjustment rod (63), the sliding sleeve (82) is arranged at one end inside the housing (81), the push rod (83) is slidably connected to the sliding sleeve (82), an energy storage spring (84) is arranged inside the sliding sleeve (82), one end of the push rod (83) is connected to a connecting plate (86), and a knocking head (87) is connected to the connecting plate (86), and the detection auxiliary component (8) also comprises a transmission structure for driving the push rod (83) to store energy in and release energy from the energy storage spring (84); The transmission structure comprises a driving bevel gear (88), a transmission shaft (89) and a driven bevel gear (810); the driving bevel gear (88) is key-connected to the rotating shaft of the positioning wheel (64); a support in the housing (81) is rotatably connected to the transmission shaft (89); one end of the transmission shaft (89) is key-connected to the driven bevel gear (810) meshing with the driving bevel gear (88); the other end of the transmission shaft (89) is key-connected to a toggle block (811); a toggle rod (85) is connected to the push rod (83); and the toggle block (811) is used to toggle the toggle rod (85).

2. A welding device for a deaerator shell according to claim 1, characterized in that: The first clamping assembly (2) comprises a clamping arm (21), a screw rod (22) and a nut (23); the clamping arms (21) are arranged in pairs and are rotatably connected to the side of the supporting plate (1); a connecting hole is provided at the lower end of the clamping arm (21); a screw rod (22) is connected to the connecting hole of the clamping arm (21); and a nut (23) is threadedly connected to the screw rod (22).

3. A welding device for a deaerator shell according to claim 1, characterized in that: The second clamping assembly (3) comprises a clamping block (31), a lead screw (32) and a crank (33); the clamping blocks (31) are arranged in pairs and are horizontally slidably connected to the support plate (1); a lead screw (32) is rotatably connected to a support of the support plate (1); a threaded hole on the clamping block (31) is threadedly connected to the lead screw (32); threads on both sides of the lead screw (32) are arranged in opposite directions; and one end of the lead screw (32) is key-connected to the crank (33).

4. A welding device for a deaerator shell according to claim 1, characterized in that: The driving assembly (5) comprises a ring gear (51), a driving motor (52) and a driving gear (53); the ring gear (51) is key-connected to the rotating ring (4); the driving motor (52) is mounted on the bearing plate (1); and the output end of the driving motor (52) is key-connected to the driving gear (53) meshing with the ring gear (51).

5. A welding device for a deaerator shell according to claim 1, characterized in that: The welding assembly (7) comprises a mounting bracket (71) and a welding gun (72); the mounting bracket (71) is welded to the transverse adjustment rod (63); and the welding gun (72) is mounted on the mounting bracket (71).

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