CN114888497A - Posture adjusting mechanism for pipeline internal welding machine and pipeline internal welding machine - Google Patents
Posture adjusting mechanism for pipeline internal welding machine and pipeline internal welding machine Download PDFInfo
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- CN114888497A CN114888497A CN202210771109.XA CN202210771109A CN114888497A CN 114888497 A CN114888497 A CN 114888497A CN 202210771109 A CN202210771109 A CN 202210771109A CN 114888497 A CN114888497 A CN 114888497A
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- 238000003466 welding Methods 0.000 title claims abstract description 92
- 230000007246 mechanism Effects 0.000 title claims abstract description 36
- 230000035939 shock Effects 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims 1
- 230000036544 posture Effects 0.000 description 35
- 238000013016 damping Methods 0.000 description 14
- 238000010276 construction Methods 0.000 description 7
- 239000003638 chemical reducing agent Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 5
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- 230000008569 process Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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- 238000005452 bending Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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Abstract
The invention discloses an attitude adjusting mechanism for a pipeline internal welding machine, which comprises: an attitude adjustment plate disposed in a vertical direction; the pipeline internal welding machine comprises a plurality of pipeline internal welding machines, a plurality of movable wheel mounting brackets, a plurality of pipeline internal welding machines and a plurality of pipeline internal welding machines, wherein the pipeline internal welding machines are arranged on the pipeline internal welding machines; the driving part is used for driving the movable wheel mounting support to rotate around the rotating connecting end of the movable wheel mounting support, the movable wheel mounting support drives the movable wheel to move obliquely, so that when the welding machine passes through the bent pipe section of the pipeline in the pipeline, the plurality of movable wheels can adjust the distance of the central axis of the welding machine in the pipeline respectively, the posture of the vehicle body of the welding machine in the pipeline is ensured to be unchanged, and the welding quality is reduced due to the fact that the position of the welding head is not influenced.
Description
Technical Field
The invention relates to the technical field of pipeline internal welding machines, in particular to an attitude adjusting mechanism for a pipeline internal welding machine and the pipeline internal welding machine.
Background
At present, automatic welding equipment is mostly needed to be used for carrying out automatic construction welding on pipelines in the long-distance pipeline construction process at home and abroad, the adoption of an automatic welding construction process for a long-distance pipeline is accepted by wide construction enterprises, especially, the automatic construction welding for the pipelines by adopting a pipeline internal welding machine not only improves the welding quality, but also improves the welding efficiency, and creates good in-pipe conditions for later pipeline maintenance and detection. However, most of the existing in-pipeline welding machines are used in plain terrain, strict scene requirements are required for the radius of a bent pipe of a pipeline, the terrain scene adaptability of multi-bent pipes in mountainous areas (the minimum bent pipe reaches 6D, and D is the outer diameter of the pipeline) is low, the strict scene requirements for the radius of the bent pipe of the pipeline and the popularization rate of an automatic welding process of long-distance pipelines in mountainous areas are caused to be low, the operation posture of the existing in-pipeline welding machines in the pipeline is manually adjusted in a non-quantitative mode, the controllable accuracy of the operation posture is low, the initial welding positions of multiple welding heads can be influenced, and the overlapping quality of welding seams and the construction efficiency are reduced.
Disclosure of Invention
The invention aims to provide an attitude adjusting mechanism for a pipeline internal welding machine and the pipeline internal welding machine, which are beneficial to improving the motion stability, the welding quality and the welding construction efficiency.
In order to achieve the above object, a first aspect of the present invention provides an attitude adjusting mechanism for an in-pipe welder, the attitude adjusting mechanism including:
an attitude adjustment plate disposed in a vertical direction;
the pipeline internal welding machine comprises a plurality of pipeline internal welding machines, a plurality of movable wheel mounting brackets, a plurality of pipeline internal welding machines and a plurality of pipeline internal welding machines, wherein the pipeline internal welding machines are arranged on the pipeline internal welding machines;
and the driving part is used for driving the movable wheel mounting bracket to rotate around the rotating connecting end of the movable wheel mounting bracket, so that the movable wheel mounting bracket drives the movable wheel to move obliquely.
In the embodiment of the invention, the number of the driving components is multiple, the multiple driving components are in one-to-one driving connection with the multiple moving wheel mounting brackets, each driving component comprises a driving part and a telescopic part, each telescopic part comprises a first shaft body, a second shaft body and a telescopic rod, the lower end of each telescopic rod is connected with the corresponding moving wheel mounting bracket, the first shaft body and the second shaft body are arranged up and down oppositely and fixedly connected, the upper end of the first shaft body is connected with the attitude adjusting plate, a moving channel is formed inside the second shaft body, and the telescopic rods are arranged in the moving channel and move up and down along the moving channel under the driving of the driving parts.
In the embodiment of the invention, a first mounting column extending forwards is arranged on the front end surface of the attitude adjusting plate, the upper end of the first shaft body is rotatably connected with the first mounting column, a second mounting column is arranged on the movable wheel mounting bracket, and the lower end of the telescopic rod is rotatably connected with the second mounting column.
In an embodiment of the invention, the driving part comprises a motor, a driving wheel and a driven wheel, the driving wheel and the motor are drivingly connected with each other and form external meshing with the driven wheel, the first shaft body and the second shaft body together form a driven wheel mounting cavity inside, the driven wheel is arranged in the driven wheel mounting cavity, and the telescopic rod penetrates from the inside of the driving wheel and forms internal meshing with the driven wheel.
In an embodiment of the present invention, the attitude adjustment mechanism further includes a shock-absorbing member provided on the moving wheel mounting bracket.
In an embodiment of the invention, the damping assembly comprises an upper connector, a lower connector, a connecting column and an elastic member, the upper connector is connected with the attitude adjusting plate, the lower connector is connected with the movable wheel mounting bracket, the connecting column comprises a rod part and a limiting end part arranged at the top end of the rod part, the bottom end of the rod part penetrates through the upper connector and is in threaded connection with the lower connector, the elastic member is sleeved on the rod part, the upper end of the elastic member is connected with the upper connector, and the lower end of the elastic member abuts against the lower connector.
In the embodiment of the invention, a third mounting column extending forwards is arranged on the front end surface of the posture adjusting plate, the upper end of the upper connecting body is rotatably connected with the third mounting column, and the lower end of the lower connecting body is rotatably connected with the second mounting column.
In the embodiment of the invention, the pipeline internal welding machine comprises a front vehicle body and a rear vehicle body, wherein the posture adjusting plate is arranged at the tail end of the front vehicle body, the front end of the rear vehicle body is provided with a connecting plate, and the posture adjusting mechanism further comprises a flexible connecting assembly of which two ends are respectively connected with the posture adjusting plate and the connecting plate.
In the embodiment of the invention, the flexible connecting assembly comprises a universal joint connecting part, a left elastic supporting part and a right elastic supporting part, the front end and the rear end of the universal joint connecting part are respectively positioned on the vertical central axes of the posture adjusting plate and the connecting plate, and the left elastic supporting part and the right elastic supporting part are symmetrically arranged on the left side and the right side of the universal joint connecting part.
The invention provides an in-pipe welder, which comprises the posture adjusting mechanism for the in-pipe welder.
Through the technical scheme, the plurality of movable wheel mounting brackets are arranged on the front end surface of the attitude adjusting plate in a bilaterally symmetrical and inclined manner, the rear ends of the movable wheel mounting brackets are rotatably connected with the attitude adjusting plate, and the movable wheels of the plurality of pipeline internal welding machines are respectively arranged at the front ends of the movable wheel mounting brackets; the driving part drives the movable wheel mounting support to rotate around the rotating connecting end of the movable wheel mounting support, the movable wheel mounting support drives the movable wheel to move obliquely, so that when the welding machine passes through a bent pipe section of a pipeline in the pipeline, the plurality of movable wheels can adjust the distance of the central axis of the welding machine in the pipeline respectively, the posture of the vehicle body of the welding machine in the pipeline is ensured to be unchanged, and the welding quality is reduced due to the fact that the position of a welding head is not influenced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
FIG. 1 is a schematic view of a first perspective structure of an attitude adjustment mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second perspective of the attitude adjustment mechanism in the embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a driving part according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an oblique view structure of a driving member according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a shock assembly in an embodiment of the present invention;
FIG. 6 is a schematic perspective view of a shock absorbing assembly according to an embodiment of the present invention;
FIG. 7 is a schematic view of a partial structure of an attitude adjustment mechanism according to an embodiment of the present invention;
FIG. 8 is a schematic view of a flexible connection assembly in an embodiment of the invention.
Description of the reference numerals
1 attitude adjustment plate 101 first mounting post
102 third mounting column 2 moving wheel mounting bracket
201 second mounting post 3 moving wheel
4 drive part 401 drive part
402 telescoping portion 403 first shaft
404 second shaft 405 telescopic rod
406 motor 407 driven wheel
5 Upper connecting body of shock-absorbing component 501
5011 first column 5012 first ring body
502 lower connector 5021 second column
5022 second ring 503 connecting column
5031 the rod 5032 has a limiting end
504 elastic member 6 connecting plate
7 flexible connection assembly 701 gimbal connection
702 left elastic support part 703 right elastic support part
8 first fisheye bearing 9 second fisheye bearing
10 speed reducer 11 casing
12 stop screw 13 stop washer
14 third fisheye bearing 15 fourth fisheye bearing
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
An embodiment of the present invention provides an attitude adjusting mechanism for a pipe interior welding machine, which is suitable for a pipe interior welding machine, as shown in fig. 1-8, the attitude adjusting mechanism includes an attitude adjusting plate 1, a plurality of movable wheel mounting brackets 2 and a driving part 4, the pipe interior welding machine in this embodiment includes a plurality of movable wheels 3, wherein the plurality of movable wheels 3 includes left and right front wheels of the pipe interior welding machine, the attitude adjusting plate 1 is disposed along a vertical direction, the plurality of movable wheel mounting brackets 2 are bilaterally symmetric and obliquely disposed on a front end surface of the attitude adjusting plate 1, the plurality of movable wheel mounting brackets 2 in this embodiment includes left and right front wheel mounting brackets, the left and right front wheel mounting brackets are respectively obliquely disposed on left and right sides of a front end surface of the attitude adjusting plate 1, a rear end of the movable wheel mounting bracket 2 is rotatably connected with the attitude adjusting plate 1, the plurality of movable wheels 3 are respectively arranged at the front end of each movable wheel mounting bracket 2, namely, the left front wheel is obliquely arranged at the front end of the left front wheel mounting bracket, and the right front wheel is obliquely arranged at the front end of the right front wheel mounting bracket, so that when the pipeline internal welding machine moves in a pipeline, the rolling surfaces of the movable wheels 3 are attached to the inner wall surface of the pipeline as much as possible.
When a pipeline internal welding machine in the prior art passes through a bent pipe section of a pipeline, only the moving wheel 3 on one side can be tightly attached to the inner wall surface of the pipeline, the moving wheel 3 on the other side can be in a suspension state, the moving wheel 3 in the suspension state is not supported by supporting force, so that the pipeline internal welding machine can be inclined, in addition, even if the moving wheels 3 on two sides of the pipeline internal welding machine are tightly attached to the inner wall surface of the pipeline, the body posture of the pipeline internal welding machine still changes, and once the body posture of the pipeline internal welding machine changes, the welding head position on the body can be changed, the welding process of the pipeline internal welding machine can be influenced after the welding head position changes, and the welding quality of a welding seam can be reduced. Therefore, in the embodiment, the driving component 4 is used for driving the movable wheel mounting bracket 2 to rotate around the rotation connecting end of the movable wheel mounting bracket 2, so that the movable wheel mounting bracket 2 drives the movable wheel 3 to tilt, that is, the movable wheel mounting bracket 2 can tilt upwards or tilt downwards around the rear end of the movable wheel mounting bracket 2 under the driving of the driving component 4, the plurality of movable wheels 3 move along with the movement of the movable wheel mounting bracket 2, so that when the in-pipe welding machine passes through the bent pipe section of the pipe, the left front wheel and the right front wheel can both adjust the distance of each relative to the central axis of the in-pipe welding machine, so as to ensure that the posture of the body of the in-pipe welding machine is not changed, and further avoid influencing the position of the welding head to cause the welding quality to be reduced, for example, when the in-pipe welding machine passes through the bent pipe section which is bent leftwards, the driving component 4 drives the left front wheel to tilt upwards, the right front wheel is driven to incline and deflect downwards, so that the left front wheel and the right front wheel can be attached to the inner wall of the pipeline, and the inner wall of the pipeline can support the left front wheel and the right front wheel.
In one embodiment of the present invention, the number of the driving members 4 is plural, the plural driving members 4 are in one-to-one driving connection with the plural moving wheel mounting brackets 2, the driving member 4 includes a driving portion 401 and a telescopic portion 402, the telescopic portion 402 includes a first shaft body 403, a second shaft body 404 and a telescopic rod 405, the lower end of the telescopic rod is connected with the moving wheel mounting bracket 2, the first shaft body 403 and the second shaft body 404 are arranged and fixedly connected up and down, the upper end of the first shaft body 403 is connected with the posture adjustment plate 1, a moving channel is formed inside the second shaft body 404, and the telescopic rod 405 is arranged in the moving channel and moves up and down along the moving channel under the driving of the driving portion 401. Specifically, in the present embodiment, the number of the driving members 4 is two, and the two driving members 4 respectively drive the left front wheel mounting bracket and the right front wheel mounting bracket; first axle body 403 and second axle body 404 (first axle body 403 and second axle body 404 are the step shaft) all set up along vertical direction, and the lower extreme of first axle body 403 and the upper end of second axle body 404 link together, the upper end and the drive division 401 drive connection of telescopic link 405, the lower extreme of telescopic link 405 and the removal wheel installing support 2 that corresponds are connected, when drive division 401 moves, telescopic link 405 reciprocates in the removal passageway, and then drive rather than the removal wheel installing support 2 that links together and deflect, remove the position of wheel 3, the automobile body gesture of welding machine also obtains the adjustment thereupon in the pipeline.
In an embodiment of the present invention, a front end surface of the attitude adjustment plate 1 is provided with a first mounting post 101 extending forward, an upper end of the first shaft body 403 is rotatably connected to the first mounting post 101, the movable wheel mounting bracket 2 is provided with a second mounting post 201, and a lower end of the telescopic rod 405 is rotatably connected to the second mounting post 201. Specifically, the posture adjusting mechanism further comprises a first fisheye bearing 8 and a second fisheye bearing 9, the upper end of the first fisheye bearing 8 is rotatably arranged at the front end of the first mounting column 101, and the lower end of the first fisheye bearing 8 is in threaded connection with the upper end of the first shaft body 403; the movable wheel mounting bracket 2 comprises a first support plate and a second support plate which are arranged in parallel at intervals, the movable wheel 3 can be pivotally arranged at the front ends of the first support plate and the second support plate in a gap between the first support plate and the second support plate, and the movable wheel 3 is preferably a high-hardness rubber pouring wheel provided with a support bearing; the moving wheel mounting bracket 2 also comprises a second mounting column 201, the second mounting column 201 is positioned between the first support plate and the second support plate, and the two ends of the second mounting column 201 are fixed with the first support plate and the second support plate, the setting direction of the second mounting column 201 is consistent with the setting direction of the first support plate and the second support plate, the upper end of a second fisheye bearing 9 is in threaded connection with the lower end of a telescopic rod 405, the lower end of the second fisheye bearing 9 is rotatably arranged on the second mounting column 201, wherein, the first mounting column 101 and the second mounting column 201 are both fisheye bearing screws, the above structural design does not affect the driving function of the driving part 4, but also increases the overall movement flexibility of the driving part 4, that is, when the telescopic rod 405 is extended, the first fisheye bearing 8 and the second fisheye bearing 9 can be respectively deflected within a certain angle range at the connection positions with the attitude adjusting plate 1 and the moving wheel mounting bracket 2.
In one embodiment of the present invention, the driving part 401 includes a motor 406, a driving wheel (not shown in the figure) and a driven wheel 407, the driving wheel is drivingly connected with the motor 406 and forms an external engagement with the driven wheel 407, the interiors of the first shaft body 403 and the second shaft body 404 together form a driven wheel installation cavity, the driven wheel 407 is arranged in the driven wheel installation cavity, and the telescopic rod 405 passes through the interior of the driven wheel 407 and forms an internal engagement with the driven wheel 407. Specifically, the driving portion 401 further includes a speed reducer 10 and a housing 11, an input end of the speed reducer 10 is in driving connection with a driving end of the motor 406, the driving wheel is disposed at an output end of the speed reducer 10, external teeth which enable the driving wheel and the driven wheel 407 to form external meshing therebetween are disposed on the driving wheel and the driven wheel 407, the telescopic rod 405 is a screw rod and penetrates through the driven wheel 407, internal teeth which form internal meshing with the screw rod are further disposed on the driven wheel 407, and the motor 406 can axially move after rotating due to the structural design; further, the motor 406, the speed reducer 10 and the driving wheel are all arranged on one side of the driven wheel 407 (or the first shaft body 403 and the second shaft body 404), a driven wheel mounting cavity for mounting the driven wheel 407 is formed inside the lower end of the first shaft body 403 and inside the upper end of the second shaft body 404, a containing cavity is formed inside the housing 11, the driving wheel and the driven wheel 407 are arranged in the containing cavity in parallel, the upper end of the housing 11 is connected with the speed reducer 10 and the first shaft body 403, a round hole for allowing a part of the second shaft body 404 to penetrate out downwards is formed in the bottom surface of the housing 11, the design does not affect the driving performance of the driving part 4 and can shorten the overall length of the driving part 4, and the structure of the posture adjusting mechanism is more compact.
In an embodiment of the present invention, the posture adjustment mechanism further includes a stop screw 12 and a stop washer 13 disposed at the top end of the telescopic rod 405, the stop screw 12 passes through the stop washer 13 and is screwed with the telescopic rod 405, the outer diameter of the stop washer 13 is larger than the outer diameter of the telescopic rod 405, and the stop screw 12 and the telescopic rod 405 can limit the axial movement of the telescopic rod 405 and prevent the telescopic rod 405 from moving downwards too much to be separated from the driven wheel 407.
In one embodiment of the present invention, the posture adjustment mechanism further comprises a guide key (not shown) disposed in the moving passage and used for guiding the telescopic rod 405.
In one embodiment of the invention, the posture adjusting mechanism further comprises a damping component 5 arranged on the moving wheel mounting bracket 2, wherein the damping component is obliquely arranged and the oblique direction of the damping component is consistent with the oblique direction of the moving path, and is used for damping the moving wheel 3 when the moving wheel passes through the fluctuant pipe wall; further, the damping assembly 5 in this embodiment is disposed between the moving wheel 3 and the driving member 4, and since a certain time interval is provided between the controller of the in-pipe welding machine issuing a control command and the driving member 4 starting to perform a driving action, the above-mentioned structural design enables the damping assembly 5 to act prior to the driving member 4 when the moving wheel 3 passes through a pipe wall with irregular undulations or a curved pipe section, which is beneficial to smoothly adjusting the position of the moving wheel 3.
In an embodiment of the present invention, the shock absorbing assembly 5 includes an upper connector 501, a lower connector 502, a connecting column 503 and an elastic member 504, the upper connector 501 is connected to the posture adjustment plate 1, the lower connector 502 is connected to the moving wheel mounting bracket 2, the connecting column 503 includes a rod portion 5031 and a limiting end portion 5032 arranged at the top end of the rod portion 5031, the bottom end of the rod portion 5031 passes through the upper connector 501 and forms a threaded connection with the lower connector 502, the elastic member 504 is sleeved on the rod portion 5031, the upper end of the elastic member 504 is connected to the upper connector 501, and the lower end of the elastic member 504 abuts against the lower connector 502. Specifically, the upper connector 501 comprises a first cylinder 5011 and a first circular ring 5012 arranged outside the first cylinder 5011, wherein the top of the first cylinder 5011 is connected with the posture adjusting plate 1, and a concave cavity is formed at the bottom of the first cylinder 5011; the lower connector 502 comprises a second column 5021 and a second circular ring 5022 arranged outside the second column 5021, a convex column protruding upwards and extending into the concave cavity is formed at the top of the second column 5021, and the bottom of the second column 5021 is connected with the moving wheel mounting bracket 2; a plurality of first through holes which are uniformly circumferentially spaced are formed in the first ring 5012, a plurality of second through holes which are uniformly circumferentially spaced are formed in the second ring 5022, the positions of the first through holes correspond to the positions of the second through holes, the number of the connecting columns 503 corresponds to the number of the first through holes and the number of the second through holes, the bottom end of the rod portion 5031 penetrates through the first through holes and extends into the second through holes, external threads are arranged at the bottom end of the rod portion 5031, internal threads are arranged in the second through holes, so that the rod portion 5031 is in threaded connection with the lower connector 502, and the limiting end portion 5032 is positioned above the first ring 5012, so that the upper connector 501 and the lower connector 502 are prevented from completely disengaging; the elastic member 504 in this embodiment is a spring, which is sleeved on the outer periphery of the rod portion 5031, and the upper end of the spring is connected to the first ring 5012, and the lower end of the spring abuts against the second ring 5022, so as to achieve the buffering and damping effects on the moving wheel 3 by the extension or compression of the spring.
In an embodiment of the present invention, a front end surface of the posture adjustment plate 1 is provided with a third mounting column 102 extending forward, an upper end of the upper connecting body 501 is rotatably connected with the third mounting column 102, and a lower end of the lower connecting body 502 is rotatably connected with the second mounting column 201. Specifically, the posture adjusting mechanism further comprises a third fisheye bearing 14 and a fourth fisheye bearing 15, the upper end of the third fisheye bearing 14 is rotatably arranged at the front end of the third mounting column 102, and the lower end of the third fisheye bearing 14 is in threaded connection with the upper end of the first cylinder 5011; the upper end of the fourth fisheye bearing 15 is in threaded connection with the lower end of the second column 5021, the lower end of the fourth fisheye bearing 15 is rotatably arranged on the second mounting column 201, the third mounting column 102 is a fisheye bearing screw, the structural design does not affect the buffering and damping effects of the damping assembly 5, and the overall movement flexibility of the damping assembly 5 is increased, namely when the damping assembly 5 is subjected to damping adjustment, the connection positions of the third fisheye bearing 14 and the fourth fisheye bearing 15 with the posture adjusting plate 1 and the moving wheel mounting bracket 2 can realize deflection within a certain angle range.
In one embodiment of the invention, the pipeline internal welding machine comprises a front vehicle body and a rear vehicle body, wherein the posture adjusting plate 1 is arranged at the tail end of the front vehicle body, the front end of the rear vehicle body is provided with a connecting plate 6, and the posture adjusting mechanism further comprises a flexible connecting component 7, two ends of which are respectively connected with the posture adjusting plate 1 and the connecting plate 6. Specifically, because the attitude adjusting plate 1 is arranged at the tail end of the front vehicle body, therefore, each component (such as a left front wheel, a right front wheel, a damping component 5, a driving component 4 and the like) arranged at the front side of the attitude adjusting plate 1 belongs to the front vehicle body, the connecting plate 6 is arranged at the rear side of the attitude adjusting plate 1 and is arranged at an interval with the attitude adjusting plate 1, a flexible connecting component 7 is arranged in the interval between the connecting plate 6 and the attitude adjusting plate 1, the motion flexibility of the welding machine in the pipeline is increased, namely, the front vehicle body and the rear vehicle body can be in different motion postures, if the welding machine in the pipeline passes through a bent pipe section of the pipeline, the front vehicle body can deflect before the rear vehicle body, and the over-bending capability of the welding machine in the pipeline is improved.
In an embodiment of the present invention, the flexible connecting assembly 7 includes a gimbal connecting portion 701, a left elastic supporting portion 702 and a right elastic supporting portion 703, the front end and the rear end of the gimbal connecting portion 701 are respectively located on the vertical central axes of the posture adjusting plate 1 and the connecting plate 6, and the left elastic supporting portion 702 and the right elastic supporting portion 703 are symmetrically disposed on the left side and the right side of the gimbal connecting portion 701. Specifically, the universal joint connecting part 701 comprises a first connecting part and a second connecting part, the front end of the first connecting part is fixed with the posture adjusting plate 1, the rear end of the first connecting part is rotatably connected with the front end of the second connecting part in a universal joint mode (the second connecting part can rotate in any direction relative to the first connecting part), and the rear end of the second connecting part is fixed with the connecting plate 6; the left elastic support part 702 and the right elastic support part 703 are both provided with a plurality of springs, the plurality of springs belonging to the left elastic support part 702 are arranged on the left side of the universal joint connecting part 701, the plurality of springs belonging to the right elastic support part 703 are arranged on the right side of the universal joint connecting part 701, one end of each spring is connected with the attitude adjusting plate 1, the other end of each spring is connected with the connecting plate 6, the springs are used for connecting and supporting the front vehicle body and the rear vehicle body when the front vehicle body and the rear vehicle body rotate relatively, and the springs are used for improving the motion stability of the front vehicle body and the rear vehicle body when the front vehicle body and the rear vehicle body are bent excessively; in this embodiment, the left elastic support portion 702 and the right elastic support portion 703 both include four springs, one of the four springs is disposed above the gimbal coupling portion 701, and the other three springs are disposed below the gimbal coupling portion 701 in a triangular shape for enlarging the connecting and supporting points.
The invention provides an in-pipe welder, which comprises the posture adjusting mechanism for the in-pipe welder.
The invention provides a posture adjusting mechanism for a pipeline internal welding machine and the pipeline internal welding machine, wherein a plurality of movable wheel mounting brackets are arranged on the front end surface of a posture adjusting plate in a bilateral symmetry and inclined manner, the rear ends of the movable wheel mounting brackets are rotationally connected with the posture adjusting plate, and the movable wheels of the pipeline internal welding machine are respectively arranged at the front ends of the movable wheel mounting brackets; the driving part drives the movable wheel mounting support to rotate around the rotating connecting end of the movable wheel mounting support, the movable wheel mounting support drives the movable wheel to move obliquely, so that when the welding machine passes through a bent pipe section of a pipeline in the pipeline, the plurality of movable wheels can adjust the distance of the central axis of the welding machine in the pipeline respectively, the posture of the vehicle body of the welding machine in the pipeline is ensured to be unchanged, and the welding quality is reduced due to the fact that the position of a welding head is not influenced.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, numerous simple modifications can be made to the technical solution of the invention, including combinations of the specific features in any suitable way, and the invention will not be further described in relation to the various possible combinations in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention.
Claims (10)
1. An attitude adjustment mechanism for an in-pipe welder, the attitude adjustment mechanism comprising:
a posture adjustment plate (1) arranged in the vertical direction;
the pipeline internal welding machine comprises a plurality of movable wheel mounting brackets (2), wherein the movable wheel mounting brackets (2) are bilaterally symmetrical and are obliquely arranged on the front end surface of the attitude adjusting plate (1), the rear ends of the movable wheel mounting brackets (2) are rotatably connected with the attitude adjusting plate (1), and a plurality of movable wheels (3) of the pipeline internal welding machine are respectively arranged at the front ends of the movable wheel mounting brackets (2);
and the driving part (4) is used for driving the movable wheel mounting bracket (2) to rotate around the rotating connecting end of the movable wheel mounting bracket (2), so that the movable wheel mounting bracket (2) drives the movable wheel (3) to obliquely move.
2. The attitude adjustment mechanism for an in-pipe welder according to claim 1, the number of the driving parts (4) is multiple, the driving parts (4) are in one-to-one corresponding driving connection with the moving wheel mounting brackets (2), the driving component (4) comprises a driving part (401) and a telescopic part (402), the telescopic part (402) comprises a first shaft body (403), a second shaft body (404) and a telescopic rod (405) the lower end of which is connected with the movable wheel mounting bracket (2), the first shaft body (403) and the second shaft body (404) are oppositely arranged up and down and are fixedly connected, the upper end of the first shaft body (403) is connected with the attitude adjusting plate (1), a moving channel is formed in the second shaft body (404), and the telescopic rod (405) is arranged in the moving channel and moves up and down along the moving channel under the driving of the driving part (401).
3. The attitude adjusting mechanism for the pipe internal welding machine according to claim 2, wherein a first mounting column (101) extending forward is arranged on a front end face of the attitude adjusting plate (1), an upper end of the first shaft body (403) is rotatably connected with the first mounting column (101), a second mounting column (201) is arranged on the movable wheel mounting bracket (2), and a lower end of the telescopic rod (405) is rotatably connected with the second mounting column (201).
4. The attitude adjustment mechanism for a pipe interior welding machine according to claim 2, wherein the driving portion (401) comprises a motor (406), a driving wheel and a driven wheel (407), the driving wheel and the motor (406) are drivingly connected and form external engagement with the driven wheel (407), the first shaft body (403) and the second shaft body (404) together form a driven wheel mounting cavity, the driven wheel (407) is disposed in the driven wheel mounting cavity, and the telescopic rod (405) passes through the driven wheel (407) and forms internal engagement with the driven wheel (407).
5. The attitude adjustment mechanism for an in-pipe welder according to claim 1, further comprising a shock absorbing assembly (5) provided on the moving wheel mounting bracket (2).
6. The attitude adjustment mechanism for an in-pipe welder according to claim 5, the shock absorption assembly (5) comprises an upper connector (501), a lower connector (502), a connecting column (503) and an elastic piece (504), the upper connecting body (501) is connected with the posture adjusting plate (1), the lower connecting body (502) is connected with the movable wheel mounting bracket (2), the connecting column (503) comprises a rod part (5031) and a limiting end part (5032) arranged at the top end of the rod part (5031), the bottom end of the rod part (5031) penetrates through the upper connector (501) and forms threaded connection with the lower connector (502), the elastic piece (504) is sleeved on the rod part (5031), the upper end of the elastic piece (504) is connected with the upper connector (501), the lower end of the elastic member (504) abuts against the lower connecting body (502).
7. The attitude adjusting mechanism for the pipe internal welding machine according to claim 6, wherein a third mounting column (102) extending forward is provided on a front end surface of the attitude adjusting plate (1), an upper end of the upper connecting body (501) is rotatably connected with the third mounting column (102), and a lower end of the lower connecting body (502) is rotatably connected with the second mounting column (201).
8. The attitude adjusting mechanism for the pipe interior welding machine according to claim 1, further comprising a front body and a rear body, wherein the attitude adjusting plate (1) is disposed at a rear end of the front body, a connecting plate (6) is disposed at a front end of the rear body, and the attitude adjusting mechanism further comprises a flexible connecting assembly (7) having two ends respectively connected to the attitude adjusting plate (1) and the connecting plate (6).
9. The attitude adjusting mechanism for the pipe internal welding machine according to claim 8, wherein the flexible connecting assembly (7) comprises a universal joint connecting portion (701), a left elastic supporting portion (702) and a right elastic supporting portion (703), the front end and the rear end of the universal joint connecting portion (701) are respectively located on the vertical central axis of the attitude adjusting plate (1) and the connecting plate (6), and the left elastic supporting portion (702) and the right elastic supporting portion (703) are symmetrically arranged on the left side and the right side of the universal joint connecting portion (701).
10. An in-pipe welder, characterized in that the in-pipe welder comprises an attitude adjustment mechanism for an in-pipe welder according to any one of claims 1-9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2022105559632 | 2022-05-20 | ||
| CN202210555963 | 2022-05-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114888497A true CN114888497A (en) | 2022-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210771109.XA Pending CN114888497A (en) | 2022-05-20 | 2022-06-30 | Posture adjusting mechanism for pipeline internal welding machine and pipeline internal welding machine |
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| Country | Link |
|---|---|
| CN (1) | CN114888497A (en) |
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| CN112171169A (en) * | 2020-09-23 | 2021-01-05 | 成都熊谷加世电器有限公司 | Pipe lining internal butt-joint device system |
| CN115008077A (en) * | 2022-05-20 | 2022-09-06 | 国家石油天然气管网集团有限公司 | Pipeline internal welding machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3181762A (en) * | 1960-01-14 | 1965-05-04 | Hedlund Brdr Ab | Guide device for tubes during welding operation |
| JPH10113792A (en) * | 1996-10-11 | 1998-05-06 | Japan Steel & Tube Constr Co Ltd | Inner clamp device for piping |
| JP4439587B1 (en) * | 2008-08-29 | 2010-03-24 | 株式会社大盛工業 | Pipe-in-pipe method |
| KR20140036419A (en) * | 2012-09-14 | 2014-03-26 | 성균관대학교산학협력단 | Independent suspension type in-pipe robot |
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| CN112171169A (en) * | 2020-09-23 | 2021-01-05 | 成都熊谷加世电器有限公司 | Pipe lining internal butt-joint device system |
| CN115008077A (en) * | 2022-05-20 | 2022-09-06 | 国家石油天然气管网集团有限公司 | Pipeline internal welding machine |
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