CN216386269U - Device for detecting butt joint precision of double-end flanges of pipeline - Google Patents
Device for detecting butt joint precision of double-end flanges of pipeline Download PDFInfo
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- CN216386269U CN216386269U CN202123133929.6U CN202123133929U CN216386269U CN 216386269 U CN216386269 U CN 216386269U CN 202123133929 U CN202123133929 U CN 202123133929U CN 216386269 U CN216386269 U CN 216386269U
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Abstract
The utility model discloses a device for detecting the butt joint precision of a double-end flange of a pipeline, which comprises a first butt joint mechanism and a second butt joint mechanism; the first butting mechanism comprises a first butting flange plate supporting seat, and a first butting flange plate is arranged on the first butting flange plate supporting seat; the second docking mechanism comprises a sliding mechanism, and a second docking flange is connected to the sliding mechanism through a rotatable stud; the first butt joint flange plate and the second butt joint flange plate are symmetrically arranged in parallel in an opposite way in a way that the axes of the first butt joint flange plate and the second butt joint flange plate are in a horizontal state, and the initial spacing distance between the first butt joint flange plate and the second butt joint flange plate is greater than the length of the pipeline to be measured; when the double-end flange is used, the flange plate at the right end side of the double-end flange of the pipeline is butted with the first butting mechanism, and then the butting condition of the second butting mechanism and the flange plate at the left end side of the second butting mechanism is observed so as to judge the butting precision; the device can be used for rapidly, conveniently, reliably and visually inspecting the butt joint precision of the pipeline double-end flange, and the inspection reliability and efficiency are improved.
Description
Technical Field
The utility model relates to the technical field of precision of double-end flanges of pipelines, in particular to a device for detecting the butt joint precision of the double-end flanges of the pipelines.
Background
The double-end flange of the pipeline specifically refers to a structure that two end faces of one pipeline are respectively welded with one flange, and two welded flanges are coaxial in pipeline hole, coaxial in bolt hole and parallel in end face. The flanges at the two ends of the pipeline are respectively butted with end face flanges of two sections of pipelines to be connected, the end faces of the flanges are provided with sealing grooves, sealing rings are arranged in the grooves, after the flanges are butted, the pipeline stud flange and the two sections of pipelines to be connected are tightly connected together by bolts or studs, and finally the connection of the two sections of pipelines by taking the pipeline stud flange as an intermediate connecting piece is realized. The double-end flange of the pipeline is generally used for pipeline connection with larger diameter, such as a main pipeline connecting valve, a check valve, a meter, a pump and the like and a pipeline section needing to be frequently disassembled and repaired. Since the pipeline is a tool which cannot be used for industrial, agricultural and civil life at present, the pipeline double-end flange is very common and very important in pipeline connection of industrial, agricultural and civil life.
The qualified butt joint precision of the double-end flange of the pipeline is the premise of ensuring that the double-end flange of the pipeline can be simultaneously in butt joint with end face flanges of two sections of pipelines to be connected, and is an important index for testing whether the double-end flange of the pipeline is qualified or not. However, the butt joint precision of the double-end flange of the pipeline is influenced by various factors, and the main factors are as follows: the perpendicularity of the end faces of the two flanges and the central line of the pipeline, the coaxiality of the inner cylindrical surfaces of the two flanges and the inner cylindrical surface of the pipeline, the coaxiality of the inner cylindrical surfaces of the bolt through holes of the two flanges and the parallelism of the end faces of the two flanges. Because the butt joint precision of the double-end flange of the pipeline is important and the factor complexity in pipeline connection, the device for detecting the butt joint precision of the double-end flange of the pipeline is fast, convenient, reliable and capable of directly reflecting whether the butt joint precision of the double-end flange of the pipeline is qualified is researched and developed to have important practical significance.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a device for detecting the butt joint precision of a double-end flange of a pipeline, which can quickly, conveniently, reliably and intuitively reflect whether the butt joint precision of the double-end flange of the pipeline is qualified.
Therefore, the technical scheme of the utility model is as follows:
a device for testing the butt joint precision of a double-end flange of a pipeline comprises a first butt joint mechanism and a second butt joint mechanism; wherein the content of the first and second substances,
the first butting mechanism comprises a first butting flange plate supporting seat, a first locking ring and a first butting flange plate; the first butt flange plate supporting seat is fixed on the bottom plate, the top of the first butt flange plate supporting seat is provided with an installation column, the installation column is arranged in a mode that the axis of the installation column is horizontal, and the outer wall of the installation column is provided with external threads; the first locking ring is sleeved and connected to the mounting column through threads; the first butt flange is arranged in a mode that the axis of the first butt flange is horizontal, and is fixed at the front end of the mounting column through a threaded blind hole formed in the center of the disc surface at the back side of the first butt flange; the center of the front side disc surface of the first butt flange disc extends along the axial direction and is provided with a circular boss, and a plurality of protruding columns vertical to the disc surface are uniformly distributed at the edge along the circumferential direction;
the second butting mechanism comprises a second butting flange plate, a second locking ring, a rotatable stud and a sliding mechanism; the sliding mechanism consists of a sliding rail fixed on the bottom plate and a sliding seat capable of reciprocating relative to the sliding rail; the rotatable stud is fixed on the sliding seat in a mode that the axis of the rotatable stud is horizontal and is arranged along the reciprocating movement direction of the sliding seat; the second locking ring is sleeved and connected on the rotatable stud in a threaded manner; the second butt-joint flange plate is arranged in a mode that the axis of the second butt-joint flange plate is horizontal, and is fixed at the front end of the rotatable stud through a threaded blind hole formed in the center of the back side plate surface of the second butt-joint flange plate; the center of the front side disc surface of the second butt flange disc extends along the axial direction and is provided with a circular boss, and a plurality of protruding columns vertical to the disc surface are uniformly distributed at the edge along the circumferential direction;
the first butt joint mechanism and the second butt joint mechanism are symmetrically fixed on a horizontal bottom plate in a mode that the front side plate surface of the first butt joint flange plate is opposite to and parallel to the front side plate surface of the second butt joint flange plate, and the initial spacing distance between the first butt joint flange plate and the second butt joint flange plate is larger than the length of the pipeline to be tested.
Furthermore, the first butt flange plate supporting seat is composed of a fixed seat, a supporting plate and a connecting column which are sequentially arranged from bottom to top; the fixed seat is detachably fixed on the bottom plate through a bolt; the supporting plate is vertically arranged and fixed on the top surface of the fixed seat in the middle; the connecting column is fixed on the top surface of the supporting plate in a mode that the axis of the connecting column is horizontal; the mounting column extends axially from the center of one end face of the connecting column.
Furthermore, two sides of the supporting plate are respectively provided with a ribbed plate; the rib plate is a thick plate with a right-angled triangle-shaped longitudinal section, and two corresponding right-angled surfaces of the rib plate are respectively welded and fixed on the side wall of the supporting plate and the top surface of the fixing seat.
Furthermore, the first butt joint mechanism also comprises a positioning structure which is composed of a positioning pin seat, a positioning pin limiting seat and a positioning pin; the positioning pin seat is arranged on the adjacent side of the back side disc surface of the first butt flange disc and fixed on the bottom plate, and a radial through hole is formed in the positioning pin seat along the axial direction of a protruding column at the bottom side of the first butt flange disc; the positioning pin limiting seat is of a cylinder structure with an opening at one end and a closed end at the other end, and a pin hole is formed in the center of the closed end of the positioning pin limiting seat; the positioning pin limiting seat is arranged and fixed at the radial through hole of the positioning pin seat in a mode that the axis of the positioning pin limiting seat is horizontal, so that the opening end of the positioning pin limiting seat is communicated with the radial through hole; the positioning pin is a cylindrical long rod with a first annular boss arranged on the outer wall of the middle part, one side of the positioning pin is positioned in the radial through hole, the front end of the positioning pin is exposed, the other side of the positioning pin is sleeved in the positioning pin limiting seat, and the rear end of the positioning pin extends out of the pin hole; a plurality of positioning blind holes are uniformly distributed on the edge of the back side disc surface of the first butt flange disc along the circumferential direction, so that the front end of the positioning pin is inserted into the positioning blind holes on the bottom side of the disc surface.
Furthermore, the diameter of the radial through hole on the positioning pin seat, the diameter of the through hole on the positioning pin limiting seat and the diameter of the positioning blind hole are slightly larger than the outer diameter of the positioning pin; the outer diameter of the first annular boss on the locating pin is slightly smaller than the inner diameter of the locating pin limiting seat, and is larger than the aperture of the radial through hole on the locating pin seat and the aperture of the through hole on the locating pin limiting seat.
Furthermore, the outer diameter of the circular boss is slightly smaller than the inner diameter of the double-end flange of the pipeline to be measured; the outer diameter of each protruding column is slightly smaller than the inner diameter of the bolt hole in the flange plate at the end side of the double-end flange of the pipeline to be detected, and the number of the protruding columns is consistent with the number of the bolt holes in the flange plate at the end side of the double-end flange of the pipeline to be detected.
Furthermore, the slide rail is composed of a slide rail seat, a rail supporting block and a fixed slide block which are sequentially connected from bottom to top, and the longitudinal section of the slide rail is I-shaped; the slide rail seat is detachably fixed on the bottom plate through bolts; the sliding seat is composed of a sliding support and a sliding seat supporting block fixed at the center of the top surface of the sliding support; a sliding through groove with a T-shaped longitudinal section is formed in the center of the bottom surface of the self-sliding seat, the width of the upper part of the sliding through groove is matched with that of the fixed sliding block, and the width of the lower part of the sliding through groove is matched with that of the rail supporting block, so that the fixed sliding block of the sliding rail can be inserted into the sliding through groove and can slide in a reciprocating manner along the horizontal direction; and a threaded blind hole is radially formed in the center of the side wall of the sliding seat supporting block above the notch at one end of the sliding through groove, so that one end of the rotatable stud is fixed in the threaded blind hole in a threaded connection mode.
Furthermore, two sides of the sliding seat supporting block are respectively provided with a ribbed plate; the rib plate is a thick plate with a right-angled triangle-shaped longitudinal section, and two corresponding right-angled surfaces of the rib plate are respectively welded and fixed on the side wall of the supporting block and the top surface of the sliding seat.
Compared with the prior art, the device for detecting the butt joint precision of the double-end flange of the pipeline is quick, convenient and reliable, can visually reflect whether the butt joint precision of the double-end flange of the pipeline is qualified or not, and the using method of the device for detecting the butt joint precision of the double-end flange of the pipeline are provided aiming at the importance and the factor complexity of the butt joint precision of the double-end flange of the pipeline in pipeline connection, the detection reliability and the detection efficiency of the double-end flange of the pipeline are improved, and the device has important practical significance in the butt joint precision detection of the double-end flange of the pipeline.
Drawings
FIG. 1 is a schematic structural diagram of an apparatus for inspecting the butting precision of double-headed flanges of a pipeline according to the utility model;
FIG. 2 is a schematic structural diagram of a positioning structure of the device for checking the butting precision of the double-headed flanges of the pipeline;
FIG. 3 is a schematic structural diagram of a first mating flange support seat in the apparatus for inspecting the mating accuracy of a double-ended flange of a pipeline according to the present invention;
FIG. 4 is a schematic structural diagram of a sliding mechanism of the device for checking the butting precision of the double-headed flanges of the pipeline;
fig. 5(a) is a schematic diagram of a forward structure of a first butting flange plate in the device for checking butting precision of double-headed flanges of pipelines according to the utility model;
fig. 5(b) is a schematic reverse structure view of a first mating flange plate in the apparatus for inspecting the mating accuracy of a double-ended flange of a pipeline according to the present invention;
wherein: 1. the device comprises a bottom plate, 2, a first butt flange support seat, 3, a first locking ring, 4, a first butt flange, 5, a second butt flange, 6, a second locking ring, 7, a rotatable stud, 8, a sliding seat, 9, a sliding rail, 10, a positioning pin seat, 11, a positioning pin limiting seat, 12 and a positioning pin.
Detailed Description
The utility model will be further described with reference to the following figures and specific examples, which are not intended to limit the utility model in any way.
As shown in fig. 1, the apparatus for checking the butting precision of the double-ended flange of the pipeline comprises a first butting mechanism and a second butting mechanism which are arranged on a base plate 1; wherein the content of the first and second substances,
the first butting mechanism comprises a first butting flange plate supporting seat 2, a first locking ring 3, a first butting flange plate 4 and a positioning structure; in particular, the amount of the solvent to be used,
as shown in fig. 3, the first butt flange support seat 2 is composed of a fixed seat 2a, a support plate 2b and a connecting column 2c which are arranged from bottom to top in sequence; four vertex angles of the fixed seat 2a are respectively provided with a bolt hole, so that the fixed seat can be detachably fixed on the bottom plate 1 through bolts; the supporting plate 2b is vertically arranged and fixed on the top surface of the fixed seat 2a in the middle; the connecting column 2c is fixed on the top surface of the supporting plate 2b in a mode that the axis of the connecting column is horizontal; the connecting column 2c is composed of a cylindrical body and a mounting column which is formed by extending from the center of the end face of one end of the cylindrical body along the axial direction and is provided with threads on the outer side;
as a preferable technical solution of the present embodiment, two sides of the supporting plate 2b are respectively provided with a rib plate 2 d; the ribbed slab 2d is a thick slab with a right-angled triangle-shaped longitudinal section, and two corresponding right-angled surfaces of the ribbed slab are respectively welded and fixed on the side wall of the supporting plate 2b and the top surface of the fixed seat 2 a; the two rib plates are used for increasing the supporting strength;
the first locking ring 3 is an annular body with a central aperture matched with the outer diameter of the mounting column, and the hole wall of the first locking ring is provided with an internal thread, so that the first locking ring 3 is sleeved on the mounting column of the connecting column 2c and is adjustably and threadedly connected and fixed at any position on the mounting column;
as shown in fig. 5(a) and 5(b), the first butt flange 4 is a circular plate, the center of the front side plate surface extends along the axial direction and is formed with a circular boss 4a, a plurality of protruding columns 4b vertical to the plate surface are uniformly distributed at the edge of the front side plate surface along the circumferential direction, a threaded blind hole 4c corresponding to the mounting column of the connecting column 2c is formed at the center of the back side plate surface, and a plurality of positioning blind holes 4d are uniformly distributed at the edge of the back side plate surface along the circumferential direction; the first butt flange plate 4 is fixedly installed at the front end of the installation column of the connection column 2c through a threaded blind hole at the center of the back side plate surface;
in the first butt joint flange plate 4, a circular boss 4a is used as a butt joint boss of the double-end flange of the pipeline to be tested, the outer diameter of the butt joint boss is slightly smaller than the inner diameter of the double-end flange of the pipeline to be tested, so that the end side of the double-end flange of the pipeline to be tested can be sleeved on the outer side of the circular boss 4 a; the protruding columns 4b are used as butt-joint columns of bolt holes on the flange plate at the end side of the double-headed flange of the pipeline to be detected, the outer diameter of the protruding columns is slightly smaller than the inner diameter of the bolt holes on the flange plate at the end side of the double-headed flange of the pipeline to be detected, and the number of the protruding columns 4b is consistent with that of the bolt holes on the flange plate at the end side of the double-headed flange of the pipeline to be detected, so that when the end side of the double-headed flange of the pipeline to be detected is sleeved on the outer side of the circular boss 4a of the first butt-joint flange plate 4, the protruding columns 4b on the first butt-joint flange plate 4 are respectively inserted into the bolt holes on the flange plate at the end side in a one-to-one correspondence manner;
as shown in fig. 2, the positioning structure is composed of a positioning pin seat 10, a positioning pin limiting seat 11 and a positioning pin 12; the positioning pin seat 10 is arranged on the adjacent side of the back side disc surface of the first butt flange 4 and fixed on the base 1, and a radial through hole is formed in the upper part of the positioning pin seat along the axial direction of a protruding column 4b positioned on the bottom side of the first butt flange 4; the positioning pin limiting seat 11 is a cylinder structure with an opening at one end and a closed end, a first annular boss is arranged on the outer wall of the opening end, and a through hole is formed in the center of the closed end; the positioning pin 12 is a cylindrical long rod with a first annular boss arranged on the outer wall of the middle part, is sleeved on the positioning pin limiting seat 11, and has one end extending out of the through hole at the closed end of the positioning pin limiting seat 11; the positioning pin limiting seat 11 is horizontally arranged and is fixed on the positioning pin seat 10 through a bolt arranged on the annular boss so as to limit the moving range of the positioning pin 12; the other end of the positioning pin 12 extends out of the radial through hole of the positioning pin seat 10 and can move along the axial direction of the convex column 4b at the bottom side of the first butt flange 4 and extend outwards to the end to be inserted into the positioning blind hole 4d on the first butt flange 4;
the diameter of the radial through hole on the positioning pin boss 10, the diameter of the through hole on the positioning pin limiting seat 11 and the diameter of the positioning blind hole are slightly larger than the outer diameter of the positioning pin 12, and the outer diameter of the first annular boss on the positioning pin 12 is slightly smaller than the inner diameter of the positioning pin limiting seat 11 and is larger than the diameter of the radial through hole on the positioning pin boss 10 and the diameter of the through hole on the positioning pin limiting seat 11.
In the first butt joint mechanism, the front end of a positioning pin 12 is inserted into a positioning blind hole formed on the back plate surface of the first butt joint flange 4, so that the circumferential direction of the first butt joint flange 4 along the axis of the first butt joint flange is determined; and then, the first locking ring 3 screwed into the threaded column at the front end of the first butt flange support seat 2 moves towards the bottom surface of the first butt flange 4 through threads and locks the first butt flange 4, so that the first butt flange 4 and the first butt flange support seat 2 are relatively fixed.
As shown in fig. 1, the second docking mechanism includes a second docking flange 5, a second locking ring 6, a rotatable stud 7, and a sliding mechanism; wherein the content of the first and second substances,
as shown in fig. 4, the slide mechanism is composed of a slide 8 and a slide rail 9; in particular, the amount of the solvent to be used,
the slide rail 9 is composed of a slide rail seat, a rail supporting block and a fixed slide block which are sequentially connected from bottom to top, and the longitudinal section of the slide rail is I-shaped; four vertex angles of the slide rail seat are respectively provided with a bolt hole, so that the slide rail seat can be fixed on the base 1 through bolts;
the sliding seat 8 consists of a sliding support and a sliding seat supporting block fixed at the center of the top surface of the sliding support; a sliding through groove with a T-shaped longitudinal section is formed in the center of the bottom surface of the self-sliding seat, the width of the upper part of the sliding through groove is matched with that of the fixed sliding block, and the width of the lower part of the sliding through groove is matched with that of the rail supporting block, so that the fixed sliding block of the sliding rail 9 can be inserted into the sliding through groove and can slide in a reciprocating manner along the horizontal direction;
as a preferred technical solution of this embodiment, two sides of the carriage support block are respectively provided with a rib plate; the rib plate is a thick plate with a right-angled triangle-shaped longitudinal section, and two corresponding right-angled surfaces of the rib plate are respectively welded and fixed on the side wall of the supporting block and the top surface of the sliding seat; the two blocks are used for enhancing the supporting strength of the sliding seat 8 and used as handles for pushing the sliding seat 8 to slide on the sliding rail 9;
a threaded blind hole is formed in the center of the side wall of the sliding seat supporting block above the notch at one end of the sliding through groove along the radial direction, so that one end of the rotatable stud 7 is fixed in the threaded blind hole in a threaded connection manner;
the second locking ring 6 is an annular body with a central aperture matched with the outer diameter of the mounting column, and the hole wall of the second locking ring is provided with an internal thread, so that the second locking ring 6 is sleeved on the rotatable stud 7 and is adjustably and threadedly connected and fixed at any position on the rotatable stud 7;
the second butt-joint flange 5 is a circular disk body, the center of the front side disk surface of the second butt-joint flange extends along the axial direction and is provided with a circular boss, a plurality of protruding columns vertical to the disk surface are uniformly distributed at the edge of the front side disk surface along the circumferential direction, and the center of the back side disk surface of the second butt-joint flange is provided with a threaded blind hole matched with the mounting column of the connecting column; the second butt-joint flange plate 5 is fixed at the other end of the rotatable stud 7 through a threaded blind hole at the center of the back side plate surface in a threaded mode;
in the second docking mechanism, the slide carriage 8 is placed on the slide rail 9 through the i-shaped through groove and can slide along the i-shaped boss of the slide rail 9; one end of the rotatable stud 7 is screwed into a threaded hole formed in the sliding seat 8, but a margin for continuous rotation is reserved, and the second locking ring 6 is screwed into the other end of the rotatable stud 7 through threads on the inner cylindrical surface of the second locking ring; the second butt-joint flange 5 is screwed into the rotatable stud 7 through the inner cylindrical surface thread arranged on the bottom surface; moving the second locking ring 6 screwed into the rotatable stud 7 toward the bottom surface of the second docking flange 5 by means of a screw thread and locking the second docking flange 5, thereby fixing the second docking flange 5 to the rotatable stud 7;
the first butt joint mechanism and the second butt joint mechanism are arranged on the base 1 at intervals in a mode that the first butt joint flange plate 4 and the second butt joint flange plate 5 are coaxially arranged, and the front side disc surfaces of the first butt joint flange plate and the second butt joint flange plate are opposite and parallel; meanwhile, the convex columns on the first butt joint flange plate 4 and the second butt joint flange plate 5 are also adjusted to be arranged in a one-to-one correspondence manner, and the two convex columns positioned on the corresponding positions are positioned on the same axis; in addition, for the convenience of detection, the initial spacing distance between the first butt flange 4 and the second butt flange 5 is slightly greater than the length of the double-end flange of the pipeline to be detected.
The implementation steps of the specific use method for detecting the butting precision of the double-end flange of the pipeline by adopting the device for detecting the butting precision of the double-end flange of the pipeline are as follows:
s1, reserving a space for placing the double-end flange of the pipeline in the device;
specifically, the sliding seat 8 slides to the left end along the sliding rail 9, so that a space is reserved for placing a pipeline double-end flange in the device;
s2, determining the circumferential direction of the first butt joint flange plate 4, and butt-jointing the flange plate at the right end of the double-end flange of the pipeline with the first butt joint flange plate 4;
specifically, a pin 12 is inserted into a cylindrical blind hole in the bottom surface of the first butt flange 4 to determine the circumferential direction of the first butt flange 4, six bolt holes of a right flange of the to-be-tested pipeline double-ended flange are aligned with six cylindrical bosses formed on the top surface of the first butt flange 4, and a pipeline hole of the to-be-tested pipeline double-ended flange is aligned with a central cylindrical boss formed on the top surface of the first butt flange 4, so that the flange plate end surface of the right end of the to-be-tested pipeline double-ended flange is overlapped with the top surface of the first butt flange 4;
and S3, sliding and rotating the second butt joint flange plate 5 to obtain the result whether the butt joint precision of the double-end flange of the pipeline is qualified.
Specifically, slide 8 makes second butt joint flange 5 be close to the left end flange terminal surface of the pipeline double-ended flange that awaits measuring along slide rail 9 right-hand member slip, and the second butt joint flange 5 of fixing on rotatable double-screw bolt 7 through the rotation lets six cylinder bosss that set up on the 5 top surfaces of second butt joint flange align the bolt hole on the left end flange terminal surface of the pipeline double-ended flange that awaits measuring, continues to slide 8 along slide rail 9 right-hand member slip and obtain whether qualified result of pipeline double-ended flange butt joint precision:
case 1: if six cylindrical bosses arranged on the top surface of the second butt joint flange 5 and a central cylindrical boss arranged on the top surface of the second butt joint flange 5 cannot be inserted into corresponding bolt holes and pipeline holes on the end surface of the left end flange plate of the double-end flange of the pipeline to be detected, the top surface of the second butt joint flange 5 cannot be superposed with the end surface of the left end flange plate of the double-end flange of the pipeline to be detected, and the butt joint precision of the double-end flange of the pipeline to be detected is judged to be unqualified;
case 2: if six cylindrical bosses arranged on the top surface of the second butt joint flange 5 and a central cylindrical boss arranged on the top surface of the second butt joint flange 5 can be completely inserted into corresponding bolt holes and pipeline holes on the left end flange plate end surface of the double-end flange of the pipeline to be detected, the top surface of the second butt joint flange 5 is coincided with the left end flange plate end surface of the double-end flange of the pipeline to be detected, and the butt joint precision of the double-end flange of the pipeline to be detected is judged to be qualified.
Claims (8)
1. The device for detecting the butt joint precision of the double-end flange of the pipeline is characterized by comprising a first butt joint mechanism and a second butt joint mechanism; wherein the content of the first and second substances,
the first butting mechanism comprises a first butting flange plate supporting seat (2), a first locking ring (3) and a first butting flange plate (4); the first butt flange plate supporting seat (2) is fixed on the bottom plate, the top of the first butt flange plate supporting seat is provided with a mounting column, the mounting column is arranged in a mode that the axis of the mounting column is horizontal, and the outer wall of the mounting column is provided with external threads; the first locking ring (3) is sleeved and connected to the mounting column in a threaded manner; the first butt flange plate (4) is arranged in a mode that the axis of the first butt flange plate is horizontal, and is fixed at the front end of the mounting column through a threaded blind hole formed in the center of the back side plate surface of the first butt flange plate; the center of the front side disc surface of the first butt flange disc extends along the axial direction and is provided with a circular boss (4a), and the edge of the first butt flange disc is uniformly provided with a plurality of protruding columns (4b) vertical to the disc surface along the circumferential direction;
the second butting mechanism comprises a second butting flange plate (5), a second locking ring (6), a rotatable stud (7) and a sliding mechanism; the sliding mechanism consists of a sliding rail (9) fixed on the bottom plate and a sliding seat (8) capable of reciprocating relative to the sliding rail (9); the rotatable stud (7) is fixed on the sliding seat (8) in a way that the axis of the rotatable stud is horizontal and is arranged along the reciprocating movement direction of the sliding seat (8); the second locking ring (6) is sleeved and connected on the rotatable stud (7) in a threaded manner; the second butt joint flange plate (5) is arranged in a mode that the axis of the second butt joint flange plate is horizontal, and is fixed at the front end of the rotatable stud (7) through a threaded blind hole formed in the center of the back side plate surface of the second butt joint flange plate; the center of the front side disc surface of the second butt flange disc (5) extends along the axial direction and is provided with a circular boss, and a plurality of protruding columns vertical to the disc surface are uniformly distributed at the edge along the circumferential direction;
the first butt joint mechanism and the second butt joint mechanism are symmetrically fixed on a horizontal bottom plate in a mode that the front side plate surface of the first butt joint flange plate (4) is opposite to and parallel to the front side plate surface of the second butt joint flange plate (5), and the initial spacing distance between the first butt joint flange plate (4) and the second butt joint flange plate (5) is larger than the length of a pipeline to be measured.
2. The device for inspecting the butting precision of the double-headed flanges of the pipelines according to claim 1, wherein the first butting flange plate supporting seat (2) is composed of a fixed seat (2a), a supporting plate (2b) and a connecting column (2c) which are sequentially arranged from bottom to top; wherein the fixed seat (2a) is detachably fixed on the bottom plate through a bolt; the supporting plate (2b) is vertically arranged and fixed on the top surface of the fixed seat (2a) in the middle; the connecting column (2c) is fixed on the top surface of the supporting plate (2b) in a mode that the axis of the connecting column is horizontal; the mounting column extends from the center of one end face of the connecting column (2c) along the axial direction.
3. The device for checking the butting precision of double-ended flanges of pipelines according to claim 2, wherein a rib plate (2d) is arranged on each of two sides of the supporting plate (2 b); the ribbed slab (2d) is a thick plate with a right-angled triangle-shaped longitudinal section, and two corresponding right-angled surfaces of the ribbed slab are respectively welded and fixed on the side wall of the supporting plate (2b) and the top surface of the fixed seat (2 a).
4. The device for inspecting the butt joint precision of the double-ended flanges of the pipelines according to claim 1, wherein the first butt joint mechanism further comprises a positioning structure which is composed of a positioning pin seat (10), a positioning pin limiting seat (11) and a positioning pin (12); the positioning pin seat (10) is arranged on the adjacent side of the back side disc surface of the first butt flange (4) and fixed on the bottom plate, and a radial through hole is formed in the upper part of the positioning pin seat along the axial direction of a protruding column (4b) at the bottom side of the first butt flange (4); the positioning pin limiting seat (11) is of a cylinder structure with an opening at one end and a closed end at the other end, and a pin hole is formed in the center of the closed end; the positioning pin limiting seat (11) is arranged and fixed at the radial through hole of the positioning pin seat (10) in a mode that the axis of the positioning pin limiting seat is horizontal, so that the opening end of the positioning pin limiting seat is communicated with the radial through hole; the positioning pin (12) is a cylindrical long rod with a first annular boss arranged on the outer wall of the middle part, one side of the positioning pin is positioned in the radial through hole, the front end of the positioning pin is exposed, the other side of the positioning pin is sleeved in the positioning pin limiting seat (11), and the rear end of the positioning pin extends out of the pin hole; a plurality of positioning blind holes (4d) are uniformly distributed at the edge of the back side disc surface of the first butt flange disc (4) along the circumferential direction, so that the front ends of the positioning pins (12) are inserted into the positioning blind holes at the bottom side of the disc surface.
5. The device for inspecting the butt joint precision of the double-ended flanges of the pipelines according to claim 4, wherein the diameter of the radial through hole on the positioning pin seat (10), the diameter of the through hole on the positioning pin limiting seat (11) and the diameter of the positioning blind hole are slightly larger than the outer diameter of the positioning pin (12); the outer diameter of the first annular boss on the positioning pin (12) is slightly smaller than the inner diameter of the positioning pin limiting seat (11), and is larger than the diameter of a radial through hole of the positioning pin seat (10) and the diameter of a through hole on the positioning pin limiting seat (11).
6. The device for checking the butting precision of double-headed flanges of pipelines according to claim 1, wherein the outer diameter of the circular boss (4a) is slightly smaller than the inner diameter of the double-headed flange of the pipeline to be tested; the outer diameter of each protruding column (4b) is slightly smaller than the inner diameter of the bolt hole in the flange plate at the end side of the double-end flange of the pipeline to be detected, and the number of the protruding columns (4b) is consistent with the number of the bolt holes in the flange plate at the end side of the double-end flange of the pipeline to be detected.
7. The device for inspecting the butting precision of double-headed flanges of pipelines according to claim 1, wherein the slide rail (9) is composed of a slide rail seat, a rail supporting block and a fixed slide block which are sequentially connected from bottom to top, and the longitudinal section of the slide rail is I-shaped; the slide rail seat is detachably fixed on the bottom plate through bolts; the sliding seat (8) is composed of a sliding support and a sliding seat supporting block fixed at the center of the top surface of the sliding support; a sliding through groove with a T-shaped longitudinal section is formed in the center of the bottom surface of the self-sliding seat, the width of the upper part of the sliding through groove is matched with that of the fixed sliding block, and the width of the lower part of the sliding through groove is matched with that of the rail supporting block, so that the fixed sliding block of the sliding rail (9) can be inserted into the sliding through groove and can slide in a reciprocating manner along the horizontal direction; and a threaded blind hole is radially formed in the center of the side wall of the sliding seat supporting block above the notch at one end of the sliding through groove, so that one end of the rotatable stud (7) is fixed in the threaded blind hole in a threaded connection mode.
8. The apparatus for inspecting the butting precision of double-headed flanges of pipelines according to claim 7, wherein a rib is provided on each of both sides of the carriage support block; the rib plate is a thick plate with a right-angled triangle-shaped longitudinal section, and two corresponding right-angled surfaces of the rib plate are respectively welded and fixed on the side wall of the supporting block and the top surface of the sliding seat.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123133929.6U CN216386269U (en) | 2021-12-14 | 2021-12-14 | Device for detecting butt joint precision of double-end flanges of pipeline |
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| CN202123133929.6U CN216386269U (en) | 2021-12-14 | 2021-12-14 | Device for detecting butt joint precision of double-end flanges of pipeline |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001950A (en) * | 2021-12-14 | 2022-02-01 | 江苏崇创嘉航智能科技有限公司 | Device for detecting butt joint precision of double-end flanges of pipeline and using method thereof |
| CN114001950B (en) * | 2021-12-14 | 2024-07-16 | 江苏崇创嘉航智能科技有限公司 | Device for detecting butt joint precision of double-end flanges of pipeline and application method of device |
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2021
- 2021-12-14 CN CN202123133929.6U patent/CN216386269U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001950A (en) * | 2021-12-14 | 2022-02-01 | 江苏崇创嘉航智能科技有限公司 | Device for detecting butt joint precision of double-end flanges of pipeline and using method thereof |
| CN114001950B (en) * | 2021-12-14 | 2024-07-16 | 江苏崇创嘉航智能科技有限公司 | Device for detecting butt joint precision of double-end flanges of pipeline and application method of device |
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