CN218341336U - Auxiliary welding device for reducing pipeline - Google Patents
Auxiliary welding device for reducing pipeline Download PDFInfo
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- CN218341336U CN218341336U CN202222657518.5U CN202222657518U CN218341336U CN 218341336 U CN218341336 U CN 218341336U CN 202222657518 U CN202222657518 U CN 202222657518U CN 218341336 U CN218341336 U CN 218341336U
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- 238000003466 welding Methods 0.000 title claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 58
- 238000004513 sizing Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses reducing pipeline welding auxiliary device belongs to the piping erection field, and the purpose is the centering between quick accurate realization pipe joint and the pipeline. The connecting rod mechanism comprises N connecting rods which are uniformly distributed around the axial direction and lantern rings arranged at two ends of each connecting rod; each connecting rod is provided with a roller mechanism, a butt gap adjusting mechanism and a positioning mechanism along the axial direction thereof in sequence; the roller mechanism comprises a first adjusting rod and a roller; the positioning mechanism comprises a second adjusting rod and a positioning block; the aligning gap adjusting mechanism comprises a third adjusting rod and a gap sizing device; the adjusting rod is adjustably connected with the connecting rod along the axial direction of the adjusting rod; and the second adjusting rod is movably arranged on the connecting rod along the axial direction of the connecting rod. The roller mechanism realizes the on-line movement of the device along the axial direction of the pipeline; the second adjusting rod drives the positioning block to move along the radial direction and the axial direction, so that the adjustment of the alignment gap and the misalignment amount of the pipeline is realized, the gap calibrator is matched to ensure the accuracy of the alignment gap, and the pipeline alignment is quickly completed.
Description
Technical Field
The utility model belongs to the pipe installation field, specific reducing pipe welding auxiliary device.
Background
In the field of metallurgical construction and other related industries, piping is an essential process system for achieving process objectives. In the installation of a pipeline system, with the change of different process parameters, the situation of different pipe diameters can occur on the same pipeline, and the welding of the pipelines with different pipe diameters, namely the welding of the pipelines with different diameters, is generally carried out by adopting a pipeline joint with a large end and a small end, and most of the connections of the pipelines with different diameters adopt the concentric pipeline joint with the same bottom. The non-reducing pipeline is welded as shown in fig. 1, and comprises a large-diameter pipeline 8A, a small-diameter pipeline 8B and a conical pipeline joint 8C, wherein the large end of the pipeline joint 8C is welded with the large-diameter pipeline 8A, and the small end of the pipeline joint 8C is butted with the small-diameter pipeline 8B. Because the pipeline joint has a slope, when the pipeline joint is centered with large and small pipelines, the traditional centering method generally adopts a manual method to perform manual adjustment, but the manual adjustment efficiency is low, the control of a gap, a misalignment amount and centering deviation is difficult, and the precision is not high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a reducing pipeline welding auxiliary device, quick accurate realization concentric, with the centering between bottom tube coupling and the pipeline.
The utility model adopts the technical proposal that: the welding auxiliary device for the reducing pipeline comprises N connecting rods which are uniformly distributed around the axial direction, wherein the N connecting rods surround to form a hollow area; annular lantern rings are distributed at two ends of the connecting rod; n is greater than or equal to 3; two ends of each connecting rod are respectively connected with the corresponding lantern rings; each connecting rod is provided with a roller mechanism, a butt gap adjusting mechanism and a positioning mechanism; the roller mechanism comprises a first adjusting rod and a roller, the tail end of the first adjusting rod penetrates through the connecting rod in the radial direction and extends into the hollow area to be connected with the roller, and the moving direction of the roller is along the axial direction of the lantern ring; the first adjusting rod is in adjustable connection with the connecting rod along the axial direction of the first adjusting rod; the positioning mechanism comprises a second adjusting rod and a positioning block, and the tail end of the second adjusting rod penetrates through the connecting rod in the radial direction to extend into the hollow area and is movably connected with the positioning block; the second adjusting rod is in adjustable connection with the connecting rod along the axial direction of the second adjusting rod; the aligning gap adjusting mechanism comprises a third adjusting rod and a gap sizer, and the tail ends of the third adjusting rods penetrate through the connecting rods in the radial direction to extend into the hollow area and are connected with the gap sizer; the third adjusting rod is adjustably connected with the connecting rod along the axial direction of the third adjusting rod; along the axial direction of the connecting rod, the aligning gap adjusting mechanism is positioned between the roller mechanism and the positioning mechanism, and the adjusting rod II is movably arranged on the connecting rod.
Furthermore, the first adjusting rod is detachably connected with a support of the roller; the support is U-shaped, the roller is rotatably installed in a U-shaped groove of the support, a first nut is fixedly connected to the tail of the support, and a first adjusting rod is in threaded connection with the first nut.
Further, the positioning block comprises a magnetic block, a vertical connecting shaft and a bracket; the bracket is U-shaped, one end of the vertical connecting shaft is movably arranged in a U-shaped groove of the bracket through a pin shaft, and the other end of the vertical connecting shaft is perpendicular to the magnetic block and is fixedly connected with the magnetic block; the tail of the support is fixedly connected with a second nut, and the second adjusting rod is in threaded connection with the second nut.
Further, the gap sizer is of a step-shaped triangular wedge-shaped structure, and the size of each step is increased sequentially from the head to the tail of the gap sizer; the tail of the gap length finder is fixedly connected with a third nut, and a third adjusting rod is in threaded connection with the third nut.
Further, the connecting rod comprises a middle body section and joint sections at two ends in the axial direction of the connecting rod, wherein the joint sections are used for being connected with the lantern rings;
a slotted hole extending along the axial direction of the body section is arranged on the body section;
the first adjusting rod is inserted into the strip-shaped slotted hole in a penetrating manner; the first adjusting rod is a full threaded rod and is connected to adjusting nuts on the first adjusting rod through at least two threads, and the relative positions of the first adjusting rod and the connecting rod are locked on two sides of the connecting rod relatively;
the second adjusting rod is inserted into the strip-shaped slotted hole in a penetrating manner; the second adjusting rod is a full threaded rod and is connected to an adjusting nut on the second adjusting rod through at least two threads, and the relative positions of the second adjusting rod and the connecting rod are relatively locked at two sides of the connecting rod;
the third adjusting rod is inserted into the strip-shaped slotted hole in a penetrating manner; the third adjusting rod is a full threaded rod and is connected to an adjusting nut on the third adjusting rod through at least two threads, and the relative positions of the third adjusting rod and the connecting rod are relatively locked at two sides of the connecting rod.
Furthermore, the lantern ring is a telescopic structure capable of extending and contracting along the radial direction.
Furthermore, the lantern ring is formed by a plurality of arc sheets with the same arc length and radian in the circumferential direction, and each arc sheet is provided with an arc groove extending in the circumferential direction;
and the connecting rods are simultaneously inserted into the arc-shaped grooves of the two adjacent arc-shaped sheets and combined with the limiting structures to assemble the two adjacent arc-shaped sheets together.
Further, a step surface which is retracted from the body section to the joint section is formed between the joint section and the body section of the connecting rod; the joint section is a full threaded rod; the limiting structure comprises a step surface and a locking nut in threaded fit with the joint section; two adjacent arc-shaped pieces are clamped by the locking nut and the step surface oppositely.
Further, the cross section of the body section of the connecting rod is square.
The utility model has the advantages that: the utility model discloses, through the setting of gyro wheel mechanism, realized this reducing pipeline welding auxiliary device along the axial on-line movement of pipeline, can directly remove this reducing pipeline welding auxiliary device to required position on line to dismantlement and equipment process have been practiced thrift.
The adjusting rod II through the positioning mechanism drives the positioning block to move along the radial direction and move along the axial direction of the connecting rod, the pipeline alignment gap and the adjustment of the misalignment amount of the opening can be realized, the adjusting rod III is matched with the extending depth of the radial adjusting gap sizer to adjust the pipeline alignment gap, the pipeline alignment gap can be effectively determined, the accuracy of the alignment gap is ensured, the positioning mechanism, the roller mechanism and the alignment gap adjusting mechanism are matched with each other, the pipeline alignment gap and the adjustment of the misalignment amount of the opening and the like can be quickly realized, and the pipeline alignment is quickly completed.
Drawings
FIG. 1 is a schematic view of the connection of pipes of different pipe diameters;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
FIG. 4 is a partial enlarged view of FIG. 2 at B;
FIG. 5 is a schematic view of a connecting rod structure;
FIG. 6 is a schematic structural view of a roller mechanism;
FIG. 7 is a schematic view of the positioning mechanism;
fig. 8 is a schematic structural view of the aligning gap adjusting mechanism.
In the figure, a connecting rod 1, a body section 11, a joint section 12, a step surface 13, a strip-shaped slotted hole 14, a lantern ring 2, an arc-shaped sheet 21, an arc-shaped groove 22, a roller mechanism 3, a first adjusting rod 31, a roller 32, a support 33, a first nut 34, a positioning mechanism 4, a second adjusting rod 41, a positioning block 42, a magnetic block 42A, a vertical connecting shaft 42B, a support 43, a second nut 44, a pin shaft 45, a butt gap adjusting mechanism 5, a third adjusting rod 51, a gap sizer 52, a third nut 53, an adjusting nut 6, a locking nut 7, a large-diameter pipeline 8A, a small-diameter pipeline 8B and a pipeline joint 8C.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
the welding auxiliary device for the pipes with different diameters, as shown in fig. 1, includes N connecting rods 1,N uniformly distributed around the axial direction to surround and form a hollow area, the hollow area is a passage of the pipes to be connected, the pipes to be connected pass through along the extending direction of the hollow area, the extending direction of the hollow area is the axial direction of the hollow area, and is also the axial direction of the structure surrounded by the N connecting rods 1, which is called the axial direction for short. After the pipeline of present generation connection is interpenetrated in this hollow area, these N connecting rods 1 distribute in the periphery of pipeline. The N is greater than or equal to 3.N is too small to be positioned with the pipeline, N is too large to be used conveniently, and N is preferably 4, 5 or 6. The two ends of the connecting rod 1 are distributed with annular lantern rings 2, and the two ends of each connecting rod 1 are respectively connected with the corresponding lantern rings 2. The lantern ring 2 is used for connecting all the connecting rods 1 into a whole to form a frame structure, and is convenient to use.
Each connecting rod 1 is provided with a roller mechanism 3, a butt gap adjusting mechanism 5 and a positioning mechanism 4.
The roller mechanism 3 is used for realizing the on-line movement of the auxiliary device for welding the reducing pipeline along the axial direction of the pipeline, and can directly move the auxiliary device for welding the reducing pipeline to a required position on line, thereby saving the disassembling and assembling procedures.
As shown in fig. 6, the roller mechanism 3 comprises a first adjusting rod 31 and a roller 32, the end of the first adjusting rod 31 extends into the hollow area through the connecting rod 1 along the radial direction to be connected with the roller 32, and the moving direction of the roller 32 is along the axial direction of the lantern ring 2. The first adjusting rod 31 is adjustably connected with the connecting rod 1 along the axial direction of the first adjusting rod 31, namely, the depth of the first adjusting rod 31 extending into the hollow area can be adjusted along the axial direction of the first adjusting rod 31, so that the first adjusting rod can be adjusted according to the diameter of a pipeline to be connected, and the roller 32 is always in contact with the outer surface of the pipeline to be connected.
Certainly, when the large-diameter pipeline 8A is aligned with the pipeline joint 8C, or when the small-diameter pipeline 8B is aligned with the pipeline joint 8C, the position of the welding auxiliary device for the different-diameter pipeline needs to be fixed, so that the problem that the accuracy of alignment is affected due to the fact that the welding auxiliary device for the different-diameter pipeline is displaced relatively with the large-diameter pipeline 8A and the pipeline joint 8C or with the pipeline joint 8C and the small-diameter pipeline 8B is avoided. The positioning mechanism 4 serves to fix the relative position between the auxiliary welding device for the reducing pipe and the pipe joint 8C.
As shown in fig. 7, the positioning mechanism 4 includes a second adjusting rod 41 and a positioning block 42, and the tail end of the second adjusting rod 41 radially penetrates through the connecting rod 1 and extends into the hollow area and is movably connected with the positioning block 42; the second adjusting rod 41 is adjustably connected with the connecting rod 1 along the axial direction.
Each positioning block 42 abuts against the outer surface of the pipe joint 8C, thereby embracing the pipe joint 8C along the outer circumference of the pipe joint 8C, so that the positioning block 42, the second adjustment rod 41 and the pipe joint 8C form a whole.
The butt-joint gap adjusting mechanism 5 is used for adjusting a butt-joint gap between the large-diameter pipeline 8A and the pipeline joint 8C, or adjusting a butt-joint gap between the small-diameter pipeline 8B and the pipeline joint 8C.
As shown in fig. 8, the aligning gap adjusting mechanism 5 comprises an adjusting rod three 51 and a gap sizer 52, wherein the tail end of the adjusting rod three 51 penetrates through the connecting rod 1 in the radial direction to extend into the hollow area and is connected with the gap sizer 52; the third adjusting rod 51 is adjustably connected with the connecting rod 1 along the axial direction. The gap between the pipe pairs is adjusted by inserting the gap sizer 52.
Along connecting rod 1 axial, to mouthful clearance adjustment mechanism 5 is located between gyro wheel mechanism 3 and positioning mechanism 4, and adjusts pole two 41 movable mounting in connecting rod 1, along connecting rod 1 axial promptly, adjusts pole two 41 and can round trip movement to drive and adjust the locating piece 42 and the pipe joint 8C removal that pole two 41 fuse, when pipe joint 8C contacted clearance scale 52, just accomplished the pipeline and to mouthful regulation in clearance.
The second adjusting rod 41 is adjustable along the radial direction, so that the edge staggering amount at the opposite position can be adjusted through the second adjusting rod 41.
In order to facilitate the disassembly and assembly of the roller mechanism 3, preferably, the first adjusting rod 31 is detachably connected with the support 33 of the roller 32; the support 33 is U-shaped, the roller 32 is rotatably installed in a U-shaped groove of the support 33, a first nut 34 is fixedly connected to the tail of the support 33, and the adjusting rod 31 is in threaded connection with the first nut 34.
The positioning block 42 comprises a magnetic block 42A, a vertical spindle 42B and a bracket 43. The magnetic block 42A has magnetism and can be adsorbed on the surface of the steel pipeline, so that the positioning reliability is further improved.
The support 43 is U-shaped, one end of the vertical connecting shaft 42B is movably arranged in a U-shaped groove of the support 43 through a pin shaft 45, and the other end of the vertical connecting shaft is perpendicular to the magnetic block 42A and is fixedly connected with the magnetic block 42A. The magnetic block 42A is movably mounted on the bracket 43 through a pin shaft 45 and can be adjusted according to the inclination of the pipe joint 8C, so that the magnetic block is better attached to the outer surface of the pipe joint 8C.
The tail part of the bracket 43 is fixedly connected with a second nut 44, and the second adjusting rod 41 is in threaded connection with the second nut 44.
In order to accommodate various adjustments to the gap, it is preferable that the gap sizer 52 be a stepped triangular wedge-shaped structure, and from the head to the tail thereof, the sizes of the respective steps are increased in order.
The tail part of the clearance sizing device 52 is fixedly connected with a third nut 53, and the third adjusting rod 51 is in threaded connection with the third nut 53.
In order to axially adjust the positions of the roller mechanism 3, the aligning gap adjusting mechanism 5 and the positioning mechanism 4 along the reducing pipeline welding auxiliary device according to requirements. Preferably, as shown in fig. 5, the connecting rod 1 comprises a middle body section 11 and two end joint sections 12 for connecting with the lantern ring 2 along the axial direction; a slotted hole 14 extending axially along the body section 11 is provided.
As shown in fig. 4, the first adjustment rod 31 is inserted into the slotted hole 14; the first adjusting rod 31 is a full threaded rod and is connected to the adjusting nuts 6 on the first adjusting rod 31 through at least two threads, and the relative positions of the first adjusting rod 31 and the connecting rod 1 are locked on two sides of the connecting rod 1 relatively.
The second adjusting rod 41 is inserted into the slotted hole 14; the second adjusting rod 41 is a full threaded rod, and the relative positions of the second adjusting rod 41 and the connecting rod 1 are relatively locked at two sides of the connecting rod 1 through adjusting nuts 6 which are connected to the second adjusting rod 41 through at least two threads.
The third adjusting rod 51 is inserted into the slotted hole 14; adjust pole three 51 and be full threaded rod to adjust the relative position of pole three 51 and connecting rod 1 in the relative locking in connecting rod 1 both sides through two at least threaded connection in adjusting the adjusting nut 6 on pole three 51.
The lantern ring can be a plate with a through hole in the middle. However, the structure can only adapt to the passage of the pipeline smaller than the through hole, the adaptation range is small, and in order to improve the adaptation range, the lantern ring is preferably of a telescopic structure capable of being stretched and contracted along the radial direction. The lantern ring can be radially stretched and contracted, the size of the lantern ring can be adjusted according to the diameter of the pipeline, and the adaptability is better.
The lantern ring 2 can be divided into the multistage along the hoop, is connected through the telescopic link between section and the section, adjusts its size through the telescopic link is flexible. In the utility model, the lantern ring 2 is surrounded by a plurality of arc sheets 21 with equal arc length and radian along the circumferential direction, and each arc sheet 21 is provided with an arc groove 22 extending along the circumferential direction; the connecting rod 1 is inserted into the arc grooves 22 of the two adjacent arc sheets 21 at the same time and is combined with the limiting structure to assemble the two adjacent arc sheets 21 together.
This structure, as shown in fig. 3, connect two adjacent arcs pieces 21 through connecting rod 1, need not to set up the connecting piece alone and connect two adjacent arcs pieces 21, practiced thrift the material, simplify the connection structure between arcs pieces 21.
The setting of arc wall 22 is convenient for connecting rod 1 and slides in arc wall 22 to form the lantern ring 2 of different diameters, thereby the change of pipe diameter in the adaptation certain limit, and 2 size regulation convenience of lantern ring.
Can be through two nuts of threaded connection on connecting rod 1, arc piece 21 suit is on connecting rod 1 and the centre gripping and two nuts between realize that arc piece 21 installs on connecting rod 1. For further convenient installation, the connecting rod 1 comprises a middle body section 11 and joint sections 12 at two ends, and a step surface 13 which is drawn from the body section 11 to the inside of the joint section 12 is formed between the joint sections 12 and the body section 11; the joint section 12 is a full threaded rod; the limiting structure comprises a step surface 13 and a locking nut 7 in threaded fit with the joint section 12; two adjacent arc-shaped pieces 21 are clamped by the locking nut 7 opposite to the step surface 13. With the structure, each connecting rod 1 can be processed and produced in a batch in a factory, and when the connecting rod is assembled, the arc-shaped sheet 21 is abutted to the step surface 13, and the locking nut 7 is screwed. Because step face 13 position is fixed, need not to adjust, compare with nut replacement step face 13, it is more swift to assemble.
In order to facilitate the installation of the first adjusting rod 31, the second adjusting rod 41 and the third adjusting rod 51, preferably, the cross section of the body section 11 of the connecting rod 1 is square.
When in use, the method is operated according to the following steps:
1. according to different pipe diameters, two groups of arc-shaped pieces 21 are preliminarily surrounded on the periphery of the pipeline by the connecting rod 1;
2. rotating the locking nut 7 on the connecting rod 1, and clamping the arc-shaped sheet 21 by utilizing the matching of the locking nut 7, a washer and the step surface 13 of the connecting rod 1, thereby forming a basic frame of the auxiliary welding device for the reducing pipeline;
3. the connecting rod 1 is provided with an upper roller mechanism 3, a butt gap adjusting mechanism 5 and a positioning mechanism 4 according to requirements;
4. the length of the first adjusting rod 31, the second adjusting rod 41 and the third adjusting rod 51 extending into the hollow area is adjusted, after the lengths of the first adjusting rod 31, the second adjusting rod 41 and the third adjusting rod 51 are basically selected, the adjusting nuts 6 arranged on the first adjusting rod 31, the second adjusting rod 41 and the third adjusting rod 51 are rotated, locking of the first adjusting rod 31, the second adjusting rod 41 and the third adjusting rod 51 is achieved, and a basic frame of the auxiliary welding device for the different-diameter pipeline is fixed on the installed pipeline by taking the roller 32 at the tail end of the first adjusting rod 31 as a fulcrum; the present embodiment has the large-diameter pipe 8A as an installed pipe. Of course, the small-diameter pipe 8B may be an installed pipe.
5. Moving the aligning gap adjusting mechanism 5 along the radial direction to keep the sizes of the aligning gaps on the periphery of the pipe orifice consistent, thereby effectively controlling the assembling gaps of the pipe orifice;
6. according to the size of the concentric and same-bottom pipeline joint 8C and the gradient of the pipe fitting, the length of the third adjusting rod 51 extending into the hollow area is adjusted, meanwhile, the angle of the magnetic block 42A is matched with the gradient of the pipe fitting, and the magnetic switch is turned on, so that the pipe fitting and the third adjusting rod 51 are connected into an adjustable whole through the magnetic block 42A;
7. moving the third adjusting rod 51 to move along the axial direction of the pipeline, so as to drive the pipeline joint 8C to move along the axial direction of the pipeline, so that the third adjusting rod is tightly attached to the pipeline aligning gap sizing device 52, and the requirement of the pipeline aligning gap is met;
8. adjusting the third adjusting rod 51, adjusting the adjusting nuts 6 on the third adjusting rod 51 in pairs, and enabling the pipeline joint 8C to move along the radial direction of the pipeline, so that the misalignment between the pipeline joint 8C and the large-diameter pipeline 8A is adjusted;
9. after the large-diameter pipeline 8A and the pipeline joint 8C are fixed in a spot welding mode, the magnetic meter seat magnetic switch is turned off, and the auxiliary welding device for the reducing pipeline moves on line along the pipeline by means of the roller 32.
Claims (9)
1. Reducing pipeline welding auxiliary device, its characterized in that: the connecting rod mechanism comprises N connecting rods (1) which are uniformly distributed around the axial direction, wherein the N connecting rods (1) surround to form a hollow area; annular lantern rings (2) are distributed at two ends of the connecting rod (1); n is greater than or equal to 3; two ends of each connecting rod (1) are respectively connected with the corresponding lantern rings (2);
each connecting rod (1) is provided with a roller mechanism (3), a butt gap adjusting mechanism (5) and a positioning mechanism (4);
the roller mechanism (3) comprises a first adjusting rod (31) and a roller (32), the tail end of the first adjusting rod (31) penetrates through the connecting rod (1) along the radial direction to extend into the hollow area to be connected with the roller (32), and the moving direction of the roller (32) is along the axial direction of the lantern ring (2); the adjusting rod I (31) is in adjustable connection with the connecting rod (1) along the axial direction of the adjusting rod I;
the positioning mechanism (4) comprises a second adjusting rod (41) and a positioning block (42), and the tail end of the second adjusting rod (41) radially penetrates through the connecting rod (1) to extend into the hollow area and is movably connected with the positioning block (42); the second adjusting rod (41) is in adjustable connection with the connecting rod (1) along the axial direction of the second adjusting rod;
the aligning gap adjusting mechanism (5) comprises a third adjusting rod (51) and a gap length-fixing device (52), and the tail end of the third adjusting rod (51) penetrates through the connecting rod (1) along the radial direction to extend into the hollow area and is connected with the gap length-fixing device (52); the third adjusting rod (51) is adjustably connected with the connecting rod (1) along the axial direction;
along the axial direction of the connecting rod (1), the aligning gap adjusting mechanism (5) is positioned between the roller mechanism (3) and the positioning mechanism (4), and the adjusting rod II (41) is movably arranged on the connecting rod (1).
2. The welding auxiliary device for pipes with different diameters of claim 1, wherein: the adjusting rod I (31) is detachably connected with a support (33) of the roller (32);
the support (33) is U-shaped, the roller (32) is rotatably installed in a U-shaped groove of the support (33), a first nut (34) is fixedly connected to the tail of the support (33), and the adjusting rod (31) is in threaded connection with the first nut (34).
3. The welding aid for reducing pipes according to claim 1, wherein: the positioning block (42) comprises a magnetic block (42A), a vertical spindle (42B) and a bracket (43);
the support (43) is U-shaped, one end of the vertical connecting shaft (42B) is movably arranged in a U-shaped groove of the support (43) through a pin shaft (45), and the other end of the vertical connecting shaft is perpendicular to the magnetic block (42A) and is fixedly connected with the magnetic block (42A);
the tail of the bracket (43) is fixedly connected with a second nut (44), and the second adjusting rod (41) is in threaded connection with the second nut (44).
4. The welding aid for reducing pipes according to claim 1, wherein: the gap sizer (52) is of a step-shaped triangular wedge-shaped structure, and the sizes of steps are sequentially increased from the head to the tail of the gap sizer;
the tail part of the clearance sizing device (52) is fixedly connected with a third nut (53), and the third adjusting rod (51) is in threaded connection with the third nut (53).
5. The welding aid for reducing pipes according to any one of claims 1 to 4, wherein: the connecting rod (1) comprises a middle body section (11) and joint sections (12) which are arranged at two ends and are used for being connected with the lantern ring (2) along the axial direction of the connecting rod;
a slotted hole (14) extending along the axial direction of the body section (11) is arranged on the body section;
the first adjusting rod (31) is inserted into the slotted hole (14); the adjusting rod I (31) is a full threaded rod and is connected to an adjusting nut (6) on the adjusting rod I (31) through at least two threads, and the relative positions of the adjusting rod I (31) and the connecting rod (1) are locked on two sides of the connecting rod (1) relatively;
the second adjusting rod (41) is inserted into the slotted hole (14); the second adjusting rod (41) is a full threaded rod and is connected to the adjusting nuts (6) on the second adjusting rod (41) through at least two threads, and the relative positions of the second adjusting rod (41) and the connecting rod (1) are relatively locked at two sides of the connecting rod (1);
the third adjusting rod (51) is inserted into the slotted hole (14); the third adjusting rod (51) is a full threaded rod and is connected to the adjusting nuts (6) on the third adjusting rod (51) through at least two threads, and the relative positions of the third adjusting rod (51) and the connecting rod (1) are relatively locked at two sides of the connecting rod (1).
6. The welding auxiliary device for pipes having different diameters of claim 5, wherein: the lantern ring is a telescopic structure which can be stretched and contracted along the radial direction.
7. The welding aid for reducing pipes according to claim 6, wherein: the lantern ring (2) is formed by a plurality of arc sheets (21) with the same arc length and radian in the circumferential direction, and each arc sheet (21) is provided with an arc groove (22) extending in the circumferential direction;
the connecting rod (1) is inserted into the arc grooves (22) of the two adjacent arc sheets (21) at the same time and is combined with the limiting structure to assemble the two adjacent arc sheets (21) together.
8. The welding aid for reducing pipes according to claim 7, wherein: a step surface (13) which is contracted from the body section (11) to the joint section (12) is formed between the joint section (12) and the body section (11) of the connecting rod (1); the joint section (12) is a full threaded rod; the limiting structure comprises a step surface (13) and a locking nut (7) in threaded fit with the joint section (12); two adjacent arc-shaped pieces (21) are clamped by the locking nut (7) and the step surface (13) oppositely.
9. The welding aid for reducing pipes according to claim 8, wherein: the cross section of the body section (11) of the connecting rod (1) is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222657518.5U CN218341336U (en) | 2022-10-10 | 2022-10-10 | Auxiliary welding device for reducing pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222657518.5U CN218341336U (en) | 2022-10-10 | 2022-10-10 | Auxiliary welding device for reducing pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN218341336U true CN218341336U (en) | 2023-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222657518.5U Active CN218341336U (en) | 2022-10-10 | 2022-10-10 | Auxiliary welding device for reducing pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116944756A (en) * | 2023-09-20 | 2023-10-27 | 江苏瀚能电气有限公司 | Interface welding device for processing cable protection tube |
-
2022
- 2022-10-10 CN CN202222657518.5U patent/CN218341336U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116944756A (en) * | 2023-09-20 | 2023-10-27 | 江苏瀚能电气有限公司 | Interface welding device for processing cable protection tube |
| CN116944756B (en) * | 2023-09-20 | 2023-12-19 | 江苏瀚能电气有限公司 | Interface welding device for processing cable protection tube |
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