阅读说明：本技术 一种用于吹灰器的炉膛焊接探伤装置及方法 (Hearth welding flaw detection device and method for soot blower ) 是由 姜建勇 张莹 蒋旭初 傅伟平 于 2021-07-27 设计创作，主要内容包括：本发明公开了一种用于吹灰器的炉膛焊接探伤装置及方法,属于炉膛焊接技术领域,包括第一套框和第二套框,所述第一套框和第二套框结构相同且水平对应分布,所述第一套框和第二套框之间固定安装有连接组件,所述第一套框和第二套框的相背端均固定卡设有卡框,两组所述卡框之间设有驱动机构,所述驱动机构中设有探伤仪和清理组件,所述第一套框和第二套框的外壁均固定安装有导向组件,所述第一套框和第二套框的外壁均固定安装有移动组件,本发明通过在探伤仪的相邻位置设置清理组件,可在对焊接部位进行探伤前进行焊接部位的杂屑清理,从而防止杂屑影响对焊接部位的探伤检测,进而提升了整个装置的探伤检测效果。(The invention discloses a hearth welding flaw detection device and method for a soot blower, belonging to the technical field of hearth welding, comprising a first sleeve frame and a second sleeve frame, wherein the first sleeve frame and the second sleeve frame have the same structure and are horizontally and correspondingly distributed, a connecting assembly is fixedly arranged between the first sleeve frame and the second sleeve frame, the back ends of the first sleeve frame and the second sleeve frame are fixedly clamped with clamping frames, a driving mechanism is arranged between the two groups of clamping frames, a flaw detector and a cleaning assembly are arranged in the driving mechanism, guide assemblies are fixedly arranged on the outer walls of the first sleeve frame and the second sleeve frame, and moving assemblies are fixedly arranged on the outer walls of the first sleeve frame and the second sleeve frame. And then promoted the detection effect of detecting a flaw of whole device.)

1. The utility model provides a furnace welding detection device for soot blower, includes first cover frame (1) and second cover frame (2), its characterized in that: first cover frame (1) and second cover frame (2) structure is the same and the level corresponds the distribution, fixed mounting has coupling assembling (3) between first cover frame (1) and second cover frame (2), the equal fixing clip in the back of the body end of first cover frame (1) and second cover frame (2) is equipped with card frame (4), and is two sets of be equipped with actuating mechanism (5) between card frame (4), be equipped with flaw detector (6) and clearance subassembly (7) in actuating mechanism (5), the equal fixed mounting of outer wall of first cover frame (1) and second cover frame (2) has direction subassembly (8), the equal fixed mounting of outer wall of first cover frame (1) and second cover frame (2) has removal subassembly (9), the outer wall fixed mounting of second cover frame (2) has handle (10).

2. The hearth welding flaw detection device for the soot blower according to claim 1, characterized in that: coupling assembling (3) are equipped with the multiunit that is the ring array and distributes, coupling assembling (3) are including cover seat (31), cover seat (31) are equipped with two that are the symmetric distribution, the equal fixing clip in opposite side of cover seat (31) is equipped with swivel bearing (32), the equal fixing clip in middle part of swivel bearing (32) is equipped with spliced pole (33), and is two sets of fixed mounting has U-shaped frame (34) between spliced pole (33), coupling assembling (3) are through two cover seats (31) respectively fixed mounting between first cover frame (1) and second cover frame (2).

3. The hearth welding flaw detection device for the soot blower according to claim 1, characterized in that: the driving mechanism (5) comprises a middle frame (51) and a protective frame (52), a bulge (511) is arranged in the middle of one side of the middle frame (51), the bulges (511) penetrate through one group of clamping frames (4), the protective frame (52) is fixedly clamped at the top of the first sleeve frame (1), a snap ring (53) is fixedly arranged on one side of the middle frame (51) close to the snap frame (4), the opposite sides of the clamping frame (4) are provided with annular grooves (531) which are matched with the clamping rings (53), the snap ring (53) is movably clamped in the corresponding annular groove (531), a driven gear ring (54) is fixedly sleeved on the outer wall of one side of the middle frame (51) close to the first sleeve frame (1), one side of the protective frame (52) is fixedly provided with a driving motor (521), and the output end of the driving motor (521) extends into the protective frame (52) and is fixedly provided with a driving gear (541) which is meshed and connected with the driven gear ring (54).

4. The hearth welding flaw detection device for the soot blower of claim 3, wherein: the flaw detectors (6) are provided with a plurality of groups corresponding to the connecting components (3), and the flaw detectors (6) are distributed in an annular array;

set up first mounting groove (601) that correspond with flaw detector (6) in center (51), the equal fixed mounting of outer wall of flaw detector (6) has protection pad (61), protection pad (61) activity joint is in corresponding first mounting groove (601).

5. The hearth welding flaw detection device for the soot blower of claim 3, wherein: the cleaning assembly (7) comprises a main frame (71), a cleaning pipe (72) is arranged on the outer side of the main frame (71), the cleaning pipe (72) is provided with a plurality of groups which correspond to the flaw detector (6) and are adjacent to each other, the main frame (71) is of a hollow structure, a threaded pipe (721) is fixedly mounted on one side, close to the main frame (71), of the cleaning pipe (72), a connecting groove (711) corresponding to the cleaning pipe (72) is formed in the outer wall of the cleaning pipe (72), an inner threaded pipe (722) matched with the threaded pipe (721) is fixedly clamped on the inner wall of the connecting groove (711), the threaded pipe (721) is clamped in the inner threaded pipe (722), a sealing washer (723) is fixedly connected on one side, close to the cleaning pipe (72), of the cleaning pipe (72) is contacted with the sealing washer (723), and a sealing bearing (73) is fixedly clamped on one side of the main frame (71), the middle part of the sealing bearing (73) is fixedly clamped with a gas drainage pipe (74);

the middle part of center (51) and arch (511) is seted up and is total bayonet slot (761) that frame (71) corresponds, and total frame (71) pass through screw fixation joint in bayonet slot (761), set up in center (51) and clear up second mounting groove (762) that pipe (72) correspond, and clear up pipe (72) activity joint in corresponding second mounting groove (762).

6. The hearth welding flaw detection device for the soot blower according to claim 1, characterized in that: the utility model discloses a guide assembly (8) is equipped with four groups that are the annular array and distribute, guide assembly (8) are including direction urceolus (81) and guide bar (82), one side fixing clip of direction urceolus (81) is equipped with first spacing ring (83), one side of guide bar (82) is passed first spacing ring (83) and fixed mounting has first spacing dish (821), be equipped with first spring (84) between the inner wall of first spacing dish (821) and direction urceolus (81), one side rotation clip that first spacing dish (821) was kept away from in guide bar (82) is equipped with ball (85), guide assembly (8) are through the outer wall of direction urceolus (81) fixed mounting at first cover frame (1), second cover frame (2).

7. The hearth welding flaw detection device for the soot blower according to claim 1, characterized in that: remove subassembly (9) and be two sets of that the symmetric distribution is equipped with, remove subassembly (9) including moving sleeve (91) and removal inserted bar (92), moving sleeve (91) and removal inserted bar (92) all are equipped with and are two sets of up-down symmetric distribution, one side fixing clip of moving sleeve (91) is equipped with second spacing ring (911), one side of removing inserted bar (92) is passed second spacing ring (911) and fixed mounting has second spacing dish (921), be equipped with second spring (93) between the inner wall of second spacing dish (921) and removal sleeve (91), remove inserted bar (92) and keep away from one side rotation of second spacing dish (921) and install gyro wheel (94), two sets of fixed mounting auxiliary shaft (941) between gyro wheel (94), be located the upside remove inserted bar (92) top fixed mounting has moving motor (95), the output end of the moving motor (95) is fixedly connected with the shaft of the roller (94), and the moving assembly (9) is fixedly arranged on the outer walls of the first sleeve frame (1) and the second sleeve frame (2) through a moving sleeve (91).

8. The hearth welding flaw detection device for the soot blower according to claim 1, characterized in that: the moving assembly (9) is positioned between two adjacent groups of guide assemblies (8).

9. A hearth welding flaw detection method for a soot blower is characterized by comprising the following steps of:

step one, placing a flaw detection device inside

When in use, the whole device is arranged in the hearth pipe, the moving assembly (9) is kept horizontal, so that a plurality of groups of balls (85) are contacted with the inner wall of the hearth pipe, and a plurality of groups of rollers (94) are contacted with the inner wall of the hearth pipe;

step two, moving the position of the flaw detection device

The moving motor (95) is controlled and started, the two corresponding groups of rollers (94) are synchronously driven to rotate, so that the flaw detection device moves in the hearth pipe, the balls (85) are always in contact with the inner wall of the hearth pipe through the arranged first spring (84), four-corner support is effectively carried out on the device arranged in the hearth pipe, the stability of the device in moving is improved, the rollers (94) are respectively controlled to rotate independently through respectively controlling the moving motor (95), one side of the device is convenient to realize not to rotate, the other side of the device rotates, the steering of the device is further realized, and when the device is steered, multiple groups of rollers (94) are always in contact with the inner wall of the hearth pipe through the arranged second spring (93), so that the bent hearth pipe can be conveniently moved until the device moves to a flaw detection part;

step three, sectional synchronous cleaning and flaw detection of welding parts

The driving gear (541) can be driven to rotate clockwise and anticlockwise by controlling and starting the driving motor (521), so that the driven gear ring (54) is driven to rotate, the middle frame (51) is driven to rotate between the two clamping frames (4), a plurality of groups of cleaning assemblies (7) are driven to synchronously rotate by the rotation of the middle frame (51), when the main frame (71) rotates, the angle of the air exhaust pipe (74) can still be kept unchanged through the connection of the sealing bearing (73), the stable air transmission into the rotating main frame (71) is facilitated by opening the pump body, air flow is sprayed out through the plurality of groups of cleaning pipes (72), air flow cleaning is carried out on sundries at the welding position, and the influence of the sundries on subsequent flaw detection of the welding position is prevented;

simultaneously, can drive multiunit appearance (6) of detecting a flaw through the rotation of center (51) and rotate to conveniently carry out the segmentation rotary type through multiunit appearance (6) of detecting a flaw to the welding position and detect, be convenient for carry out the sectional type to the welding position and detect that detects, thereby be convenient for carry out the sectional type to the welding position and detect information collection, and rotate through multiunit appearance (6) of detecting a flaw, can detect a flaw to whole welding position, effectively promoted the detection effect of detecting a flaw of whole device.

Technical Field

The invention relates to the technical field of hearth welding, in particular to a hearth welding flaw detection device and method for a soot blower.

Background

The soot blower is a device for removing soot on a heating surface of a boiler, usually consists of a soot blowing pipe, an operation valve and other parts, is commonly used for industrial boilers, is generally respectively arranged on furnace walls at positions of a boiler furnace chamber, a horizontal flue, a tail flue and the like, when in use, the furnace chamber of the soot blower needs to be welded, and after welding, the welding part of the furnace chamber needs to be subjected to flaw detection operation so as to prevent water drainage disqualification from blowing into the furnace chamber to cause water wall tube explosion when the subsequent soot blower is used;

however, most of the existing hearth welding flaw detection devices are simple in structure, when flaw detection of welding positions on the inner wall of a hearth pipe is carried out, the flaw detector needs to be conveyed into the hearth pipe, the flaw detector needs to be manually rotated, the position of the flaw detector is adjusted to carry out flaw detection on the hearth pipe, the operation is troublesome, and if miscellaneous chips occur at the welding positions, effective cleaning is not carried out, and the flaw detection effect is easily influenced.

Disclosure of Invention

The invention aims to provide a hearth welding flaw detection device and a hearth welding flaw detection method for a soot blower, and the hearth welding flaw detection device and the hearth welding flaw detection method are used for solving the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a furnace welding flaw detection device for soot blower, includes first cover frame and second cover frame, first cover frame and the same and level of second cover frame structure correspond the distribution, fixed mounting has coupling assembling between first cover frame and the second cover frame, the equal fixing clip in the end of the back of the body mutually of first cover frame and second cover frame is equipped with the card frame, and is two sets of be equipped with actuating mechanism between the card frame, be equipped with flaw detector and clearance subassembly among the actuating mechanism, the equal fixed mounting of outer wall of first cover frame and second cover frame has guide assembly, the equal fixed mounting of outer wall of first cover frame and second cover frame has removal assembly, the outer wall fixed mounting of second cover frame has the handle.

Preferably, coupling assembling is equipped with the multiunit that is the ring array and distributes, coupling assembling includes the cover seat, the cover seat is equipped with two that are the symmetric distribution, the equal fixing clip in opposite side of cover seat is equipped with swivel bearing, the equal fixing clip in middle part of swivel bearing is equipped with the spliced pole, and is two sets of fixed mounting has the U-shaped frame between the spliced pole, coupling assembling is through two cover seats respectively fixed mounting between first cover frame and second cover frame.

Preferably, actuating mechanism includes center and protective frame, one side middle part of center is equipped with the arch, the arch passes one of them a set of card frame, protective frame fixed joint is at the top of first cover frame, the center is close to the equal fixed mounting in one side of card frame and has the snap ring, the opposite side of card frame is all seted up with the annular that the snap ring cooperation was used, and snap ring activity joint is in the annular that corresponds, the center is close to the fixed cover of one side outer wall of first cover frame and is equipped with from the toothed ring, one side fixed mounting of protective frame has driving motor, driving motor's output extends into in the protective frame and the drive gear that fixed mounting and driven toothed ring meshing are connected.

Preferably, the flaw detectors are provided with a plurality of groups corresponding to the connecting components, and the plurality of groups of flaw detectors are distributed in an annular array;

the utility model discloses a flaw detector, including the center, the center is equipped with the center and is equipped with the flaw detector, the center is equipped with the first mounting groove that corresponds with the flaw detector, the equal fixed mounting of outer wall of flaw detector has the protection to fill up, protection fills up the activity joint in the first mounting groove that corresponds.

Preferably, the cleaning assembly comprises a main frame, a cleaning pipe is arranged on the outer side of the main frame, the cleaning pipe is provided with a plurality of groups adjacent to the flaw detector, the main frame is of a hollow structure, a threaded pipe is fixedly mounted on one side, close to the main frame, of the cleaning pipe, a connecting groove corresponding to the cleaning pipe is formed in the outer wall of the cleaning pipe, an inner threaded pipe matched with the threaded pipe is arranged on an inner wall fixing clamp of the connecting groove, the threaded pipe is clamped in the inner threaded pipe in a threaded manner, a sealing washer is fixedly connected to one side, close to the cleaning pipe, of the inner threaded pipe, one side, close to the threaded pipe, of the cleaning pipe is in contact with the sealing washer, a sealing bearing is arranged on one side of the main frame, and an air evacuation pipe is fixedly clamped in the middle of the sealing bearing;

the middle frame and the middle part of the bulge are provided with clamping grooves corresponding to the main frame, the main frame is clamped in the clamping grooves through screw fixing, a second mounting groove corresponding to the cleaning pipe is formed in the middle frame, and the cleaning pipe is movably clamped in the corresponding second mounting groove.

Preferably, the direction subassembly is equipped with four groups that are the annular array and distribute, the direction subassembly is including direction urceolus and guide bar, one side fixing clip of direction urceolus is equipped with first spacing ring, first spacing ring and fixed mounting are passed to one side of guide bar have first spacing dish, be equipped with first spring between the inner wall of first spacing dish and direction urceolus, one side rotation card that first spacing dish was kept away from to the guide bar is equipped with the ball, the direction subassembly is through the outer wall of direction urceolus fixed mounting at first cover frame, second cover frame.

Preferably, the removal subassembly is equipped with two sets ofly that are the symmetric distribution, the removal subassembly includes movable sleeve and removal inserted bar, movable sleeve and removal inserted bar all are equipped with two sets ofly that are upper and lower symmetric distribution, one side fixing clip of movable sleeve is equipped with the second spacing ring, one side of removing the inserted bar passes second spacing ring and fixed mounting has the spacing dish of second, be equipped with the second spring between spacing dish of second and the movable sleeve's the inner wall, one side that the spacing dish of second was kept away from to the removal inserted bar is rotated and is installed the gyro wheel, and is two sets of fixed mounting auxiliary shaft between the gyro wheel is located the upside remove inserted bar top fixed mounting has the mobile motor, the output of mobile motor and the axle fixed connection of gyro wheel, the removal subassembly is through the outer wall of movable sleeve fixed mounting at first cover frame, second cover frame.

Preferably, the moving assembly is located between two adjacent sets of guide assemblies.

A hearth welding flaw detection method for a soot blower comprises the following steps:

step one, placing a flaw detection device inside

When the device is used, the whole device is placed in the hearth pipe, the moving assembly is kept horizontal, and the multiple groups of balls are in contact with the inner wall of the hearth pipe and the multiple groups of rollers are in contact with the inner wall of the hearth pipe;

step two, moving the position of the flaw detection device

The moving motor is controlled and started, the two corresponding groups of rollers are synchronously driven to rotate, so that the flaw detection device moves in the hearth pipe, the balls are always in contact with the inner wall of the hearth pipe through the arranged first springs, four-corner support is effectively carried out on the device arranged in the hearth pipe, the stability of the device during movement is improved, the rollers are respectively controlled to rotate independently through respectively controlling the moving motor, one side of the device is convenient to realize not rotating, the other side of the device rotates, the steering of the device is further realized, and in steering, a plurality of groups of rollers are always in contact with the inner wall of the hearth pipe through the arranged second springs, so that the bent hearth pipe can be conveniently moved until the device moves to a flaw detection part;

step three, sectional synchronous cleaning and flaw detection of welding parts

The driving gear can be driven to rotate clockwise and anticlockwise by controlling and starting the driving motor, so that the driven gear ring is driven to rotate, the middle frame is driven to rotate between the two clamping frames, the multiple groups of cleaning assemblies are driven to synchronously rotate by the rotation of the middle frame, when the main frame rotates, the angle of the gas-dredging pipe can still be kept unchanged by the connection of the sealing bearing, stable gas transmission into the rotating main frame is facilitated by opening the pump body, gas flow is sprayed out through the multiple groups of cleaning pipes, and gas flow cleaning is carried out on sundry chips at the welding position, so that the influence of the sundry chips on subsequent flaw detection of the welding position is prevented;

simultaneously, the rotation through the center can drive the multiunit appearance of detecting a flaw and rotate to conveniently carry out the segmentation rotary type through the multiunit appearance of detecting a flaw to the welding position and detect, be convenient for carry out the sectional type to the welding position and detect that detects, thereby be convenient for carry out sectional type detection information to the welding position and collect, and through the rotation of multiunit appearance of detecting a flaw, can detect a flaw to whole welding position, effectively promoted the detection effect of detecting a flaw of whole device.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the cleaning assembly is arranged at the adjacent position of the flaw detector, and the sundry scraps at the welding part can be cleaned before the flaw detection is carried out on the welding part, so that the flaw detection of the welding part is prevented from being influenced by the sundry scraps, and the flaw detection effect of the whole device is further improved.

2. Through setting up multiunit appearance of detecting a flaw and clearance subassembly and cooperation use actuating mechanism, drive multiunit appearance of detecting a flaw and clearance subassembly rotation, realize synchronous clearance of segmentation rotary type to the welding position and detect a flaw to be convenient for carry out sectional type detection information to the welding position and collect, and the rotation through multiunit appearance of detecting a flaw can detect a flaw to whole welding position, has effectively promoted the detection effect of detecting a flaw of whole device.

3. Through setting up the direction subassembly and the cooperation is used and is removed the subassembly, conveniently drives whole device and carries out nimble stable removal in the furnace pipe to improve the stability when detecting a flaw, and then promote the effect that detects a flaw.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic structural connection diagram of the driving mechanism of the present invention.

Fig. 3 is an enlarged view of the invention at a in fig. 2.

FIG. 4 is a schematic view of the structural connection of the cleaning assembly of the present invention.

Fig. 5 is an enlarged view of the invention at B in fig. 4.

FIG. 6 is a schematic view showing the structural connection of the driving mechanism and the flaw detector and the cleaning assembly according to the present invention.

Fig. 7 is a schematic structural connection diagram of the guide assembly of the present invention.

Fig. 8 is a schematic structural connection diagram of the moving assembly of the present invention.

Fig. 9 is a structural connection diagram of the connection assembly of the present invention.

In the figure: 1. a first cover frame; 2. a second set of frames; 3. a connecting assembly; 4. clamping a frame; 5. a drive mechanism; 6. a flaw detector; 7. cleaning the assembly; 8. a guide assembly; 9. a moving assembly; 10. a handle; 31. a sleeve seat; 32. a rotating bearing; 33. connecting columns; 34. a U-shaped frame; 51. a middle frame; 511. a protrusion; 52. a protective frame; 521. a drive motor; 53. a snap ring; 531. a ring groove; 54. a driven gear ring; 541. a drive gear; 601. a first mounting groove; 61. a protective pad; 71. a total frame; 711. connecting grooves; 72. cleaning the pipe; 721. a threaded pipe; 722. an inner solenoid; 723. a sealing gasket; 73. sealing the bearing; 74. a gas-dredging pipe; 761. clamping through grooves; 762. a second mounting groove; 81. a guide outer cylinder; 82. a guide bar; 821. a first limiting disc; 83. a first limit ring; 84. a first spring; 85. a ball bearing; 91. moving the sleeve; 911. a second stop collar; 92. moving the inserted rod; 921. a second limiting disc; 93. a second spring; 94. a roller; 941. an auxiliary shaft; 95. the motor is moved.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): as shown in fig. 1 to 9, the present invention provides a technical solution: a hearth welding flaw detection device for a soot blower comprises a first sleeve frame 1 and a second sleeve frame 2, wherein the first sleeve frame 1 and the second sleeve frame 2 are identical in structure and are horizontally and correspondingly distributed, a connecting assembly 3 is fixedly installed between the first sleeve frame 1 and the second sleeve frame 2, and the connecting assembly 3 is provided with a plurality of groups which are distributed in an annular array; the back ends of the first sleeve frame 1 and the second sleeve frame 2 are fixedly clamped with clamping frames 4, a driving mechanism 5 is arranged between the two groups of clamping frames 4, a flaw detector 6 and a cleaning assembly 7 are arranged in the driving mechanism 5, the outer walls of the first sleeve frame 1 and the second sleeve frame 2 are fixedly provided with guide assemblies 8, and the guide assemblies 8 are provided with four groups distributed in an annular array; the outer walls of the first sleeve frame 1 and the second sleeve frame 2 are fixedly provided with moving assemblies 9, and the moving assemblies 9 are provided with two groups which are symmetrically distributed; the moving assembly 9 is positioned between the two adjacent groups of guide assemblies 8, when the device is used, the moving assembly 9 is in a horizontal state, and the guide assemblies 8 are in an inclined state; the outer wall fixed mounting of second cover frame 2 has handle 10, conveniently carries out handheld whole device of detecting a flaw of removal through handle 10.

Coupling assembling 3 includes cover seat 31, cover seat 31 is equipped with two that are the symmetric distribution, the equal fixing clip in opposite side of cover seat 31 is equipped with swivel bearing 32, the equal fixing clip in middle part of swivel bearing 32 is equipped with spliced pole 33, fixed mounting has U-shaped frame 34 between two sets of spliced poles 33, U-shaped frame 34 can realize rotating between two sets of cover seats 31, coupling assembling 3 is fixed mounting between first cover frame 1 and second cover frame 2 respectively through two cover seats 31, realize the connection between first cover frame 1 and the second cover frame 2 fixed.

The driving mechanism 5 comprises a middle frame 51 and a protective frame 52, wherein a protrusion 511 is arranged in the middle of one side of the middle frame 51, the protrusion 511 penetrates through one group of clamping frames 4 close to one side of the first sleeve frame 1, clamping rings 53 are fixedly arranged on one sides of the middle frame 51 close to the clamping frames 4, annular grooves 531 matched with the clamping rings 53 are formed in the opposite sides of the clamping frames 4, the clamping rings 53 are movably clamped in the corresponding annular grooves 531, the middle frame 51 can rotate between the two groups of clamping frames 4, and a driven toothed ring 54 is fixedly sleeved on the outer wall of one side of the middle frame 51 close to the first sleeve frame 1;

the protective frame 52 is fixedly clamped at the top of the first sleeve frame 1, a driving motor 521 is fixedly mounted on one side of the protective frame 52, the output end of the driving motor 521 extends into the protective frame 52 and is fixedly mounted with a driving gear 541 which is meshed and connected with the driven gear ring 54, the driving gear 541 can be driven to rotate clockwise and anticlockwise by controlling and starting the driving motor 521, so that the driven gear ring 54 is driven to rotate, and the middle frame 51 is driven to rotate between the two groups of clamping frames 4.

The flaw detectors 6 are provided with a plurality of groups corresponding to the connecting components 3, and the flaw detectors 6 are distributed in an annular array;

set up the first mounting groove 601 that corresponds with flaw detector 6 in center 51, the equal fixed mounting of outer wall of flaw detector 6 has protection pad 61, protection pad 61 activity joint is in corresponding first mounting groove 601, clamp between the multiunit flaw detector 6 and center 51 is carried out, rotation through center 51 can drive multiunit flaw detector 6 and rotate, thereby conveniently carry out the segmentation rotary type through multiunit flaw detector 6 and detect a flaw to welding position, be convenient for carry out the segmented flaw detection to welding position, thereby be convenient for carry out the segmented flaw detection to welding position, and rotate through multiunit segmented flaw detector 6, can detect a flaw to whole welding position, the detection effect of detecting a flaw of whole device has effectively been promoted.

The cleaning assembly 7 comprises a main frame 71, a cleaning pipe 72 is arranged on the outer side of the main frame 71, the cleaning pipe 72 is provided with a plurality of groups adjacent to the flaw detector 6, the main frame 71 is of a hollow structure, a threaded pipe 721 is fixedly arranged on one side, close to the main frame 71, of the cleaning pipe 72, a connecting groove 711 corresponding to the cleaning pipe 72 is formed in the outer wall of the cleaning pipe 72, an inner threaded pipe 722 matched with the threaded pipe 721 is fixedly clamped on the inner wall of the connecting groove 711, the threaded pipe 721 is in threaded clamping connection with the inner threaded pipe 722, a sealing washer 723 is fixedly connected to one side, close to the cleaning pipe 72, of the cleaning pipe 72, and the sealing washer 723 is contacted with one side, close to the threaded pipe 721, so that the cleaning pipe 72 is detachably connected with the main frame 71 in a sealing manner, and the cleaning pipe 72 is convenient to detach and clean;

middle parts of the middle frame 51 and the bulges 511 are provided with clamping and penetrating grooves 761 corresponding to the main frame 71, the main frame 71 is fixedly clamped in the clamping and penetrating grooves 761 through screws, a second mounting groove 762 corresponding to the cleaning pipe 72 is formed in the middle frame 51, and the cleaning pipe 72 is movably clamped in the corresponding second mounting groove 762, so that the cleaning assembly 7 and the middle frame 51 can be detachably connected, the cleaning assembly 7 can be conveniently integrally detached, overhauled and cleaned, and a plurality of groups of cleaning assemblies 7 can be driven to synchronously rotate through the rotation of the middle frame 51;

the one side fixing clip of total frame 71 is equipped with sealed bearing 73, sealed bearing 73's middle part fixing clip is equipped with the gas drainage pipe 74, the hose connection pump body is passed through to the tip of gas drainage pipe 74, when total frame 71 rotates, through sealed bearing 73's connection, the angle of gas drainage pipe 74 still can remain unchanged, thereby the convenient pump body of opening through opening, stabilize defeated gas in to pivoted total frame 71, the air current is through multiunit clearance pipe 72 blowout, carry out the air current clearance to the miscellaneous bits of welding position department, prevent that miscellaneous bits influence from detecting a flaw to the welding position, the detection effect of detecting a flaw of whole device has further been promoted.

The guide assembly 8 comprises a guide outer cylinder 81 and a guide rod 82, a first limiting ring 83 is clamped and arranged on one side of the guide outer cylinder 81, one side of the guide rod 82 penetrates through the first limiting ring 83 and is fixedly provided with a first limiting disc 821, the first limiting ring 83 limits the first limiting disc 821 to prevent the guide rod 82 from separating from the guide outer cylinder 81, a first spring 84 is arranged between the first limiting disc 821 and the inner wall of the guide outer cylinder 81, a certain contractibility is formed between the guide outer cylinder 81 and the guide rod 82 by arranging the first spring 84, a ball 85 is clamped and arranged on one side of the guide rod 82 far away from the first limiting disc 821 in a rotating mode, the guide assembly 8 is fixedly arranged on the outer walls of the first sleeve frame 1 and the second sleeve frame 2 by arranging the guide outer cylinder 81 far away from the guide rod 82, when in use, the whole device is arranged in the hearth pipe, so that a plurality of groups of balls 85 are contacted with the inner wall of the hearth pipe, and pass through the first spring 84, make ball 85 contact with the inner wall of furnace pipe all the time, effectively carry out the four corners to the device of placing in the furnace pipe and support, stability when having improved follow-up device and removing, and improved the stability when detecting a flaw, and then promote the effect that detects a flaw.

The movable assembly 9 comprises a movable sleeve 91 and a movable insertion rod 92, wherein the movable sleeve 91 and the movable insertion rod 92 are respectively provided with two groups which are vertically and symmetrically distributed, one side of the movable sleeve 91 is fixedly clamped with a second limiting ring 911, one side of the movable insertion rod 92 passes through the second limiting ring 911 and is fixedly provided with a second limiting disc 921, the second limiting ring 911 limits the second limiting disc 921 to prevent the movable insertion rod 92 from separating from the movable sleeve 91, a second spring 93 is arranged between the second limiting disc 921 and the inner wall of the movable sleeve 91, a certain contractibility is provided between the movable sleeve 91 and the movable insertion rod 92 by arranging the second spring 93, a roller 94 is rotatably arranged on one side of the movable insertion rod 92 away from the second limiting disc 921, an auxiliary shaft 941 is fixedly arranged between the two groups of rollers 94, a movable motor 95 is fixedly arranged at the top end of the movable insertion rod 92 positioned on the upper side, the output end of the movable motor 95 is fixedly connected with the shaft of the roller 94, the two corresponding groups of rollers 94 can be synchronously driven to rotate by controlling and starting the moving motor 95, the moving assembly 9 is fixedly arranged on the outer walls of the first sleeve frame 1 and the second sleeve frame 2 through the moving sleeve 91, and when in use, the groups of rollers 94 are contacted with the inner wall of the hearth pipe, the rollers 94 are always in contact with the inner wall of the hearth tube through the second spring 93, and the stability of the device in moving in the hearth tube can be improved through the arrangement of two groups of rollers 94 which correspond up and down, and by controlling the moving motors 95 respectively and controlling the rollers 94 to rotate independently, it is convenient to realize that one side of the device does not rotate and the other side rotates, thereby realizing the steering of the device, and when the device is steered, a plurality of groups of rollers 94 are always contacted with the inner wall of the hearth pipe, thereby conveniently detect a flaw to crooked furnace pipe, and then promoted the result of use of whole device.

A hearth welding flaw detection method for a soot blower comprises the following steps:

step one, placing a flaw detection device inside

When in use, the whole device is placed in the hearth tube, the moving assembly 9 is kept horizontal, and the plurality of groups of balls 85 are in contact with the inner wall of the hearth tube and the plurality of groups of rollers 94 are in contact with the inner wall of the hearth tube;

step two, moving the position of the flaw detection device

The moving motor 95 is controlled and started, the two corresponding groups of rollers 94 are synchronously driven to rotate, so that the flaw detection device moves in the hearth pipe, the balls 85 are always in contact with the inner wall of the hearth pipe through the arranged first spring 84, four-corner support is effectively carried out on the device arranged in the hearth pipe, the stability of the device during moving is improved, the rollers 94 are respectively controlled to rotate independently through respectively controlling the moving motor 95, one side of the device is convenient to rotate, the other side of the device rotates, further the steering of the device is realized, and during steering, a plurality of groups of rollers 94 are always in contact with the inner wall of the hearth pipe through the arranged second spring 93, so that the bent hearth pipe can be conveniently moved until the device moves to a flaw detection part;

step three, sectional synchronous cleaning and flaw detection of welding parts

The driving gear 541 can be driven to rotate clockwise and anticlockwise by controlling and starting the driving motor 521, so that the driven gear ring 54 is driven to rotate, the middle frame 51 is driven to rotate between the two groups of clamping frames 4, the multiple groups of cleaning assemblies 7 are driven to synchronously rotate by the rotation of the middle frame 51, when the main frame 71 rotates, the angle of the gas-distributing pipe 74 can still be kept unchanged through the connection of the sealing bearing 73, stable gas transmission into the rotating main frame 71 is facilitated by opening the pump body, and gas flow is sprayed out through the multiple groups of cleaning pipes 72 to clean the foreign chips at the welding position and prevent the foreign chips from influencing subsequent flaw detection on the welding position;

simultaneously, can drive multiunit appearance 6 of detecting a flaw through the rotation of center 51 and rotate to conveniently carry out the segmentation rotary type through multiunit appearance 6 of detecting a flaw to the welding position and detect, be convenient for carry out the sectional type to the welding position and detect that detect, thereby be convenient for carry out sectional type detection information collection to the welding position, and rotate through multiunit appearance 6 of detecting a flaw, can detect a flaw to whole welding position, effectively promoted the detection effect of detecting a flaw of whole device.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.