CN113664437B - Low-temperature wind tunnel solid guide vane assembling device and guide vane assembling method - Google Patents
Low-temperature wind tunnel solid guide vane assembling device and guide vane assembling method Download PDFInfo
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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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Abstract
The application provides a low-temperature wind tunnel solid guide vane assembling device and a guide vane assembling method, wherein a first leaning column and a first positioning plate are arranged on the upper surface of one side of a base; the second leaning columns and the second positioning plates are arranged on the upper surface of the other opposite side of the base, and the first leaning columns correspond to the second leaning columns one by one; the distance between the adjacent first leaning columns is the same, and the distance between the adjacent first leaning columns is the same as the installation distance between the adjacent guide plates; the distance between the adjacent first positioning plates is the same, and the distance between the adjacent first positioning plates is the same as the installation distance between the adjacent guide plates; the spacing between the adjacent second leaning columns is the same, and the spacing between the adjacent second leaning columns is the same as the installation spacing between the adjacent guide plates; the spacing between adjacent second locating plates is the same. The device and the method effectively improve the assembly precision of the guide vane.
Description
Technical Field
The application relates to the field of wind tunnels, in particular to a device and a method for assembling solid guide plates of a low-temperature wind tunnel.
Background
Since the advent of wind tunnels, significant advances have been made in aerodynamic research and aircraft development using wind tunnel technology, and their roles have become increasingly significant. However, with the increasing size of test objects (such as aircrafts), conventional wind tunnel tests face some serious challenges, wherein the most important is that the conventional wind tunnel cannot be tested within the full-size Reynolds number, and the high Reynolds number wind tunnel test is the premise and guarantee for realizing the aerodynamic fine design and accurate prediction of the flight performance of the aircraft, and the low-temperature wind tunnel is designed and developed for solving the problem. The conventional carbon steel wind tunnel guide vane is of a hollow structure with an inner skin, an outer skin and rib plates, and the guide vane is directly welded and fixed with the elliptical ring shell. The low-temperature wind tunnel is designed to be a solid structure for preventing the flow deflector from low-temperature shrinkage deformation affecting the flow field, and is designed to be a cold leakage preventing structure for preventing low temperature from being conducted to the elliptical ring shell, an inner layer connecting ring is arranged in the elliptical ring shell, and the solid flow deflector is welded and fixed with the inner layer connecting ring through an upper connecting plate and a lower connecting plate. The existing guide vane assembling method mainly comprises the following two steps:
(1) Three groups of positioning plates with the same clamping groove shape as the outer surface of the guide plate are adopted to fix the guide plate, the installation angle of the guide plate is ensured through the clamping grooves, and the distance of the guide plate is ensured through the distance of each clamping groove on the positioning plate, as in domestic patent CN201520728096.3;
(2) Three sets of guide sleeves with crescent holes are adopted to fix the guide plates, wherein the contour lines of the crescent holes are identical to the outer surface of the guide plates, the mounting angles and the intervals of the guide plates are ensured through the crescent holes which are continuously and discontinuously arranged, and the vertical guide plates are mounted in the elliptical ring shell after the whole assembly welding is finished, as in the domestic patent CN201510597549.8.
The above method has two problems: firstly, the perpendicularity of a bus after the guide vane is manufactured is deviated, a clamping groove for fixing the guide vane or a deviation exists in the cutting process of a crescent hole, and the deviation of the clamping groove and the deviation cannot be avoided, so that the guide vane cannot be completely attached to three groups of positioning plates or guide sleeves, and the installation angle and the interval error of the guide vane are large; secondly, welding deformation can lead to the installation angle and the interval error to be big in the whole assembly welding process of the guide vane, or hoisting deformation can lead to the installation angle and the interval error to be big in the hoisting process after the assembly welding of the guide vane which is vertically placed is completed. These problems all create turbulence that affects the flow field quality.
Disclosure of Invention
One of the purposes of the application is to provide a low-temperature wind tunnel solid guide vane assembling device and a guide vane assembling method, which aim to solve the problem that the installation accuracy of the existing guide vane is low.
The technical scheme of the application is as follows:
the low-temperature wind tunnel solid guide vane assembling device comprises a base, a plurality of groups of first positioning components and a plurality of groups of second positioning components which are in one-to-one correspondence with the first positioning components, wherein each group of first positioning components comprises a first leaning column and a first positioning plate which are spaced, and each group of second positioning components comprises a second leaning column and a second positioning plate which are spaced; the plurality of groups of first leaning columns and the first positioning plates are arranged on the upper surface of one side of the base at intervals in parallel along the length direction of the base, and the intervals between the adjacent first positioning components are the same; the plurality of groups of second leaning columns and the second positioning plates are arranged on the upper surface of the other opposite side of the base at intervals in parallel along the length direction of the base, and the intervals between the adjacent second positioning components are the same; the height of the first positioning plate is smaller than that of the first leaning post, the height of the second positioning plate is smaller than that of the second leaning post, and the first leaning posts and the second leaning post are in one-to-one correspondence; the distance between the adjacent first leaning columns is the same, and the distance between the adjacent first leaning columns is the same as the installation distance between the adjacent guide plates; the distance between the adjacent first positioning plates is the same, and the distance between the adjacent first positioning plates is the same as the installation distance between the adjacent guide plates; the distance between the adjacent second leaning columns is the same, and the distance between the adjacent second leaning columns is the same as the installation distance between the adjacent guide plates; the distance between the adjacent second positioning plates is the same, and the distance between the adjacent second positioning plates is the same as the installation distance between the adjacent guide plates.
As a technical scheme of the application, the base comprises two long I-shaped steels, a plurality of short I-shaped steels and a plurality of pier columns; the pier columns are arranged in two rows in parallel at intervals; the two long I-shaped steel plates are respectively arranged on the tops of the two rows of pier columns at intervals in parallel, a plurality of groups of first positioning assemblies are arranged on the upper surface of one long I-shaped steel plate along the length direction, and a plurality of groups of second positioning assemblies are arranged on the upper surface of the other long I-shaped steel plate along the length direction; the two ends of the short I-shaped steel are respectively and vertically connected between the two long I-shaped steels, and the adjacent short I-shaped steels are arranged at parallel intervals.
As a technical solution of the present application, the pier stud includes a steel pipe or a lattice column.
As a technical scheme of the application, the first leaning column comprises i-steel, and the length of the first leaning column is greater than the length of the outer arc length of the outer surface of the guide vane by 1/2; the second leaning column comprises I-steel, and the length of the second leaning column is greater than the length of the outer arc length of the outer surface of the guide vane by 1/2.
As a technical scheme of the application, the connecting line between the first leaning post and the corresponding second leaning post is perpendicular to the straight line where the first positioning component is located, and the connecting line between the first positioning plate and the corresponding second positioning plate is obliquely intersected with the straight line where the second positioning component is located.
As a technical scheme of this application, first locating plate the second locating plate is the thickness is no less than 30 mm's steel billet, just first locating plate the height of second locating plate is greater than the thickness of guide vane.
As a technical scheme of the application, one side of each guide vane is clamped between the second leaning post and the second locating plate in the corresponding second locating assembly of the same group through a wedge, and the other side is clamped between the first leaning post and the first locating plate in the corresponding first locating assembly of the same group; the outer surface of the guide vane is respectively in line contact with the first leaning post and the second leaning post, the end of the guide vane which is in an arc is downwards arranged and is respectively in contact with the first positioning plate, the second positioning plate and the long I-shaped steel wire, and the end of the guide vane which is in a sharp corner is upwards arranged.
As a technical scheme of this application, with same the guide vane looks joint the interval between second leaning on post and the second locating plate is greater than first leaning on the interval between post and the first locating plate.
The guide vane assembling method adopts the low-temperature wind tunnel solid guide vane assembling device to assemble, and comprises the following steps:
step one, after the assembly and welding of the low-temperature wind tunnel solid guide vane assembly device are completed, surrounding and assembling an inner layer connection ring around the low-temperature wind tunnel solid guide vane assembly device; adjusting the relative positions of the inner connecting ring and the low-temperature wind tunnel solid guide vane assembly device according to the relative position relation between the guide vane and the inner connecting ring;
spot-welding and assembling the two side ends of the outer profile of the guide vane with an upper connecting plate and a lower connecting plate respectively, measuring the actual length of an integral structure formed by the guide vane, the upper connecting plate and the lower connecting plate together, and polishing to ensure that the actual length of the integral structure formed by the guide vane, the upper connecting plate and the lower connecting plate together is smaller than the theoretical length;
step three, assembling two guide plates close to the two inner ends of the inner-layer connecting ring, and then gradually assembling the rest guide plates to the central position close to the inner-layer connecting ring in sequence; during assembly, hanging the integrated structures formed by the guide plates, the upper connecting plates and the lower connecting plates into the assembly device of the low-temperature wind tunnel solid guide plates, adjusting elevation of each guide plate to meet the installation requirement, inserting a wedge between the arc-shaped end of each guide plate and the second positioning plate to adjust the installation angle of each guide plate to meet the installation requirement, spot-welding and fixing the upper connecting plates and the lower connecting plates at the two side ends of each guide plate with the two opposite inner side walls of the inner connecting ring respectively, assembling a plurality of guide plate connecting plates arranged at intervals in parallel on the inner profile of each guide plate, and spot-welding and fixing the guide plate connecting plates on the inner profile of each guide plate; hanging another adjacent integral structure formed by the guide vane, the upper connecting plate and the lower connecting plate into the low-temperature wind tunnel solid guide vane assembling device again, adjusting the elevation of the other guide vane to meet the installation requirement, inserting a wedge between the arc-shaped end of the guide vane and the second positioning plate to adjust the installation angle of the guide vane to meet the installation requirement, ensuring that the distance between two adjacent guide vanes meets the installation requirement, spot-welding and fixing the other upper connecting plate and the other lower connecting plate with the two opposite inner side walls of the inner connecting ring respectively, and finally spot-welding and fixing the outer profile of the other guide vane with the guide vane connecting plate on the inner profile of the previous guide vane; the arrangement direction of the guide vane connecting plates is perpendicular to the arrangement direction of the guide vanes;
and step four, installing the rest guide vanes in the inner layer connecting ring by the same method as in the step three, and completing the assembly of all the guide vanes.
The beneficial effects of this application:
according to the low-temperature wind tunnel solid guide vane assembling device and the guide vane assembling method, the low-temperature wind tunnel solid guide vanes are assembled and fixed through the device, the installation angle and the space of the solid guide vanes can be effectively ensured, turbulence is prevented from occurring, and the quality of a flow field is ensured. The assembly device is manufactured by adopting the sectional material, a molded surface is not required to be cut, so that cutting errors are avoided, the accuracy of the assembly device is greatly improved, and the assembly accuracy of the guide vane is improved; meanwhile, the guide vane is limited through the first leaning column and the first positioning plate, so that the installation angle and the installation interval of one end of the guide vane are accurately controlled, the installation angle and the installation interval of the other end of the guide vane can be flexibly adjusted through the wedge and the second positioning plate, the problem that the assembly precision of the guide vane is reduced due to the perpendicularity deviation in the manufacturing process of the guide vane is avoided, and the quality of a flow field is greatly improved; in addition, through reasonable assembly process, improved the guide vane assembly efficiency, reduced subsequent welding deformation, need not to hoist and mount guide vane group after the assembly welding is accomplished to avoided the guide vane group because hoist and mount and produced the problem of deformation, further improved the installation accuracy of guide vane.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present application and therefore should not be considered as limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a low-temperature wind tunnel solid guide vane assembly device provided in an embodiment of the present application;
fig. 2 is a schematic diagram of a low-temperature wind tunnel solid guide vane assembly device and an inner layer connecting ring after assembly according to an embodiment of the present application;
fig. 3 is a schematic diagram of a first stage of assembling a guide vane and an inner layer connecting ring according to an embodiment of the present application;
fig. 4 is a schematic diagram of a second stage of assembling a guide vane and an inner layer connecting ring according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram of a third stage of assembling a guide vane and an inner layer connecting ring according to an embodiment of the present application;
fig. 6 is a schematic diagram of an assembled baffle and an inner layer connecting ring according to an embodiment of the present application.
Icon: 1-a first leaning column; 2-a first positioning plate; 3-a second leaning column; 4-a second positioning plate; 5-long I-shaped steel; 6-short I-steel; 7-pier columns; 8-a deflector; 9-an upper connecting plate; 10-a lower connecting plate; 11-an inner layer connecting ring; 12-a deflector connecting plate.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present application, it should be noted that, the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that the inventive product is conventionally put in use, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application.
Furthermore, in this application, unless expressly stated or limited otherwise, a first feature may include first and second features being in direct contact, either above or below, or through additional features being in contact therewith. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
Examples:
referring to fig. 1, with reference to fig. 2 to 6, the present application provides a device for assembling a solid flow deflector of a low-temperature wind tunnel, by which the solid flow deflector 8 of the low-temperature wind tunnel is assembled and fixed, so as to effectively ensure the installation angle and the space of the solid flow deflector 8, prevent turbulence, and ensure the quality of a flow field. The device mainly comprises a base, a plurality of groups of first positioning components and a plurality of groups of second positioning components which are in one-to-one correspondence with the first positioning components, wherein each group of first positioning components comprises a first leaning post 1 and a first positioning plate 2 which are spaced, and each group of second positioning components comprises a second leaning post 3 and a second positioning plate 4 which are spaced; wherein, a plurality of groups of first leaning columns 1 and first positioning plates 2 are arranged on the upper surface of one side of the base at intervals in parallel along the length direction of the base, and the intervals between adjacent first positioning components are the same; the plurality of groups of second leaning columns 3 and the second positioning plates 4 are arranged on the upper surface of the other opposite side of the base at intervals in parallel along the length direction of the base, and the intervals between the adjacent second positioning components are the same; the height of the first positioning plate 2 is smaller than that of the first leaning post 1, the height of the second positioning plate 4 is smaller than that of the second leaning post 3, and the first leaning posts 1 and the second leaning posts 3 are in one-to-one correspondence; the spacing between the adjacent first leaning columns 1 is the same, and the spacing between the adjacent first leaning columns 1 is the same as the installation spacing between the adjacent guide vanes 8; the spacing between the adjacent first positioning plates 2 is the same, and the spacing between the adjacent first positioning plates 2 is the same as the installation spacing between the adjacent guide vanes 8; the spacing between the adjacent second leaning columns 3 is the same, and the spacing between the adjacent second leaning columns 3 is the same as the installation spacing between the adjacent guide vanes 8; the spacing between adjacent second positioning plates 4 is the same, and the spacing between adjacent second positioning plates 4 is the same as the installation spacing between adjacent guide vanes 8.
Further, in this embodiment, the base includes two long i-beams 5, a plurality of short i-beams 6, and a plurality of pier studs 7; the pier columns 7 are arranged in two rows at intervals in parallel, the heights and structures of all the pier columns 7 are the same, the distances between adjacent pier columns 7 in the same row are the same, and the pier columns 7 in different rows correspond to each other one by one; simultaneously, two long I-shaped steel 5 are respectively arranged on the tops of two rows of pier studs 7 at intervals in parallel, the length direction of the long I-shaped steel 5 is perpendicular to the direction of the bus of the guide vane 8, the long I-shaped steel 5 is arranged along the arrangement direction of the pier studs 7, a plurality of groups of first positioning components are arranged on the upper surface of one long I-shaped steel 5 along the length direction, and a plurality of groups of second positioning components are arranged on the upper surface of the other long I-shaped steel 5 along the length direction; two ends of a plurality of short I-steel 6 are respectively and vertically connected between two long I-steel 5, and parallel interval arrangement is arranged between the adjacent short I-steel 6.
In this embodiment, the pier 7 may be a steel pipe or a lattice column.
Further, in this embodiment, the first leaning post 1 may be i-steel, and the length of the first leaning post 1 is greater than the length of the outer arc length of the outer surface of the deflector 8 of 1/2; the second leaning column 3 can be made of I-steel, and the length of the second leaning column 3 is larger than the length of the outer arc length of the outer surface of the guide vane 8 of 1/2.
Therefore, by adopting the above section bar to manufacture the assembly device, a cutting profile is not needed, the occurrence of cutting errors is avoided, the precision of the assembly device is greatly improved, and the assembly precision of the guide vane 8 is improved.
Meanwhile, in this embodiment, the line between the first leaning post 1 and the corresponding second leaning post 3 is perpendicular to the line where the first positioning component is located, and the line between the first positioning plate 2 and the corresponding second positioning plate 4 is oblique to the line where the second positioning component is located. Namely, the distance between the second leaning post 3 and the second positioning plate 4 which are clamped with the same guide vane 8 is slightly larger than the distance between the first leaning post 1 and the first positioning plate 2. Therefore, the guide vane 8 is limited through the first leaning column 1 and the first positioning plate 2, so that the installation angle and the installation distance of one end of the guide vane 8 are accurately controlled, the installation angle and the installation distance of the other end of the guide vane 8 can be flexibly adjusted through the wedge and the second positioning plate 4, the assembly precision of the guide vane 8 due to the reduction of the perpendicularity deviation in the manufacturing process of the guide vane 8 is avoided, and the quality of a flow field is greatly improved.
In addition, in the embodiment, the first positioning plate 2 and the second positioning plate 4 are steel blocks with the thickness not less than 30mm, and the heights of the first positioning plate 2 and the second positioning plate 4 are larger than the thickness of the guide vane 8.
Further, in this embodiment, one side of each guide vane 8 is clamped between the second leaning post 3 and the second positioning plate 4 in the corresponding second positioning assembly of the same group through a wedge, and the other side is clamped between the first leaning post 1 and the first positioning plate 2 in the corresponding first positioning assembly of the same group; the outer surface of the guide vane 8 is respectively in line contact with the first leaning post 1 and the second leaning post 3, the end of the guide vane 8 in an arc is downwards arranged and is respectively in line contact with the first positioning plate 2, the second positioning plate 4 and the long I-shaped steel 5, and the end of the guide vane 8 in a sharp corner is upwards arranged. The distance between the first leaning column 1 and the first positioning plate 2 contacted with each group of guide vanes 8 is obtained by drawing by adopting drawing software according to the installation angle of the guide vanes 8.
In addition, in the embodiment, a method for assembling the guide vane 8 is also provided, wherein the assembly is mainly carried out by adopting the assembly device for the solid guide vane of the low-temperature wind tunnel; the method mainly comprises the following steps:
step one, after the assembly and welding of the low-temperature wind tunnel solid guide vane assembly device are completed, the inner layer connecting ring 11 is enclosed and assembled around the low-temperature wind tunnel solid guide vane assembly device; according to the relative position relation between the guide vane 8 and the inner connecting ring 11, the relative position of the inner connecting ring 11 and the low-temperature wind tunnel solid guide vane assembling device is adjusted to meet the assembling requirement; wherein, the lower end surface of the inner connecting ring 11 can adopt a section bar to integrally lift the inner connecting ring 11;
step two, spot-welding and assembling the two side ends of the outer profile of the guide vane 8 with the upper connecting plate 9 and the lower connecting plate 10 respectively, and drilling bolt holes, penetrating bolts and fastening; measuring the actual length of the integrated structure formed by the guide vane 8, the upper connecting plate 9 and the lower connecting plate 10 in each group and grinding, so as to ensure that the actual length of the integrated structure formed by the guide vane 8, the upper connecting plate 9 and the lower connecting plate 10 in each group is smaller than the theoretical length;
step three, assembling two guide vanes 8 close to the two inner ends of the inner-layer connecting ring 11, and then gradually assembling the rest guide vanes 8 to the central position close to the inner-layer connecting ring 11 in sequence; during assembly, firstly, hanging the integral structure formed by the guide vanes 8, the upper connecting plate 9 and the lower connecting plate 10 into a low-temperature wind tunnel solid guide vane assembly device, adjusting the elevation of each guide vane 8 to meet the installation requirement, inserting a wedge between the circular arc end of the guide vane 8 and the second positioning plate 4 to adjust the installation angle of the guide vane 8 to meet the installation requirement, spot-welding and fixing the upper connecting plate 9 and the lower connecting plate 10 at the two side ends of the guide vane 8 with the opposite inner side walls of the inner connecting ring 11 respectively, assembling a plurality of guide vane connecting plates 12 arranged in parallel at intervals on the inner molded surface of the guide vane 8, and spot-welding and fixing the guide vane connecting plates 12 on the inner molded surface of the guide vane 8; hanging an adjacent other integral structure formed by the guide vane 8, the upper connecting plate 9 and the lower connecting plate 10 into a low-temperature wind tunnel solid guide vane assembling device, adjusting the elevation of the guide vane 8 to meet the installation requirement, inserting a wedge between the end of the circular arc of the guide vane 8 and the second positioning plate 4 to adjust the installation angle of the guide vane 8 to meet the installation requirement, ensuring that the distance between two adjacent guide vanes 8 meets the installation requirement, respectively carrying out spot welding fixation on the upper connecting plate 9 and the lower connecting plate 10 and two opposite inner side walls of the inner connecting ring 11, and finally carrying out spot welding fixation on the outer profile of the other guide vane 8 and the guide vane connecting plate 12 on the inner profile of the previous guide vane 8; wherein, the arrangement direction of the guide vane connecting plates 12 is perpendicular to the arrangement direction of the guide vanes 8;
and step four, by the same method as in the step three, the other guide vanes 8 are arranged in the inner layer connecting ring 11, and the accurate assembly of all the guide vanes 8 can be completed.
In summary, the assembling device and the assembling method for the low-temperature wind tunnel solid guide plates 8 can be used for assembling and fixing the low-temperature wind tunnel solid guide plates 8, so that the installation angle and the space of the solid guide plates 8 can be effectively ensured, turbulent flow is prevented, and the quality of a flow field is ensured. The assembly device is manufactured by adopting the sectional material, a molded surface is not required to be cut, so that cutting errors are avoided, the accuracy of the assembly device is greatly improved, and the assembly accuracy of the guide vane 8 is improved; meanwhile, the guide vane 8 is limited through the first leaning column 1 and the first positioning plate 2, so that the installation angle and the installation interval of one end of the guide vane 8 are accurately controlled, the installation angle and the installation interval of the other end of the guide vane 8 can be flexibly adjusted through the wedge and the second positioning plate 4, the situation that the assembly precision of the guide vane 8 is reduced due to the perpendicularity deviation in the manufacturing process of the guide vane 8 is avoided, and the quality of a flow field is greatly improved; in addition, through reasonable assembly process, the assembly efficiency of the guide vane 8 is improved, the subsequent welding deformation is reduced, the guide vane 8 group is not required to be hoisted after the assembly welding is finished, so that the problem that the guide vane 8 group deforms due to hoisting is avoided, and the installation accuracy of the guide vane 8 is further improved.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (8)
1. The assembly method of the guide vane adopts a low-temperature wind tunnel solid guide vane assembly device to assemble, the low-temperature wind tunnel solid guide vane assembly device comprises a base, a plurality of groups of first positioning components and a plurality of groups of second positioning components which are in one-to-one correspondence with the first positioning components, each group of first positioning components comprises a first leaning post and a first positioning plate which are spaced, and each group of second positioning components comprises a second leaning post and a second positioning plate which are spaced; the plurality of groups of first leaning columns and the first positioning plates are arranged on the upper surface of one side of the base at intervals in parallel along the length direction of the base, and the intervals between the adjacent first positioning components are the same; the plurality of groups of second leaning columns and the second positioning plates are arranged on the upper surface of the other opposite side of the base at intervals in parallel along the length direction of the base, and the intervals between the adjacent second positioning components are the same; the height of the first positioning plate is smaller than that of the first leaning post, the height of the second positioning plate is smaller than that of the second leaning post, and the first leaning posts and the second leaning post are in one-to-one correspondence; the distance between the adjacent first leaning columns is the same, and the distance between the adjacent first leaning columns is the same as the installation distance between the adjacent guide plates; the distance between the adjacent first positioning plates is the same, and the distance between the adjacent first positioning plates is the same as the installation distance between the adjacent guide plates; the distance between the adjacent second leaning columns is the same, and the distance between the adjacent second leaning columns is the same as the installation distance between the adjacent guide plates; the distance between the adjacent second positioning plates is the same, and the distance between the adjacent second positioning plates is the same as the installation distance between the adjacent guide plates; the method is characterized by comprising the following steps of:
step one, after the assembly and welding of the low-temperature wind tunnel solid guide vane assembly device are completed, surrounding and assembling an inner layer connection ring around the low-temperature wind tunnel solid guide vane assembly device; adjusting the relative positions of the inner connecting ring and the low-temperature wind tunnel solid guide vane assembly device according to the relative position relation between the guide vane and the inner connecting ring;
spot-welding and assembling the two side ends of the outer profile of the guide vane with an upper connecting plate and a lower connecting plate respectively, measuring the actual length of an integral structure formed by the guide vane, the upper connecting plate and the lower connecting plate together, and polishing to ensure that the actual length of the integral structure formed by the guide vane, the upper connecting plate and the lower connecting plate together is smaller than the theoretical length;
step three, assembling two guide plates close to the two inner ends of the inner-layer connecting ring, and then gradually assembling the rest guide plates to the central position close to the inner-layer connecting ring in sequence; during assembly, hanging the integrated structures formed by the guide plates, the upper connecting plates and the lower connecting plates into the assembly device of the low-temperature wind tunnel solid guide plates, adjusting elevation of each guide plate to meet the installation requirement, inserting a wedge between the arc-shaped end of each guide plate and the second positioning plate to adjust the installation angle of each guide plate to meet the installation requirement, spot-welding and fixing the upper connecting plates and the lower connecting plates at the two side ends of each guide plate with the two opposite inner side walls of the inner connecting ring respectively, assembling a plurality of guide plate connecting plates arranged at intervals in parallel on the inner profile of each guide plate, and spot-welding and fixing the guide plate connecting plates on the inner profile of each guide plate; hanging another adjacent integral structure formed by the guide vane, the upper connecting plate and the lower connecting plate into the low-temperature wind tunnel solid guide vane assembling device again, adjusting the elevation of the other guide vane to meet the installation requirement, inserting a wedge between the arc-shaped end of the guide vane and the second positioning plate to adjust the installation angle of the guide vane to meet the installation requirement, ensuring that the distance between two adjacent guide vanes meets the installation requirement, spot-welding and fixing the other upper connecting plate and the other lower connecting plate with the two opposite inner side walls of the inner connecting ring respectively, and finally spot-welding and fixing the outer profile of the other guide vane with the guide vane connecting plate on the inner profile of the previous guide vane; the arrangement direction of the guide vane connecting plates is perpendicular to the arrangement direction of the guide vanes;
and step four, installing the rest guide vanes in the inner layer connecting ring by the same method as in the step three, and completing the assembly of all the guide vanes.
2. The method of assembling a baffle according to claim 1, wherein the base comprises two long i-beams, a plurality of short i-beams and a plurality of pier studs; the pier columns are arranged in two rows in parallel at intervals; the two long I-shaped steel plates are respectively arranged on the tops of the two rows of pier columns at intervals in parallel, a plurality of groups of first positioning assemblies are arranged on the upper surface of one long I-shaped steel plate along the length direction, and a plurality of groups of second positioning assemblies are arranged on the upper surface of the other long I-shaped steel plate along the length direction; the two ends of the short I-shaped steel are respectively and vertically connected between the two long I-shaped steels, and the adjacent short I-shaped steels are arranged at parallel intervals.
3. The method of assembling a baffle according to claim 2, wherein the pier stud comprises a steel tube or a lattice stud.
4. The method of assembling a baffle according to claim 1, wherein the first abutment comprises i-steel, and the length of the first abutment is greater than 1/2 of the length of the outer arc length of the outer surface of the baffle; the second leaning column comprises I-steel, and the length of the second leaning column is greater than the length of the outer arc length of the outer surface of the guide vane by 1/2.
5. The method of assembling a baffle according to claim 1, wherein a line between the first leaning post and the corresponding second leaning post is perpendicular to a line where the first positioning component is located, and a line between the first positioning plate and the corresponding second positioning plate is oblique to a line where the second positioning component is located.
6. The assembly method of the guide vane according to claim 1, wherein the first positioning plate and the second positioning plate are steel blocks with the thickness of more than or equal to 30mm, and the heights of the first positioning plate and the second positioning plate are larger than the thickness of the guide vane.
7. The method of assembling guide vanes according to claim 2, wherein one side of each guide vane is clamped between the second leaning post and the second positioning plate in the corresponding second positioning assembly of the same group through a wedge, and the other side is clamped between the first leaning post and the first positioning plate in the corresponding first positioning assembly of the same group; the outer surface of the guide vane is respectively in line contact with the first leaning post and the second leaning post, the end of the guide vane which is in an arc is downwards arranged and is respectively in contact with the first positioning plate, the second positioning plate and the long I-shaped steel wire, and the end of the guide vane which is in a sharp corner is upwards arranged.
8. The method of assembling a baffle according to claim 7, wherein a distance between the second post and the second positioning plate, which are engaged with the same baffle, is greater than a distance between the first post and the first positioning plate.
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| CN114054904B (en) * | 2021-12-09 | 2022-12-02 | 武汉一冶钢结构有限责任公司 | Method for manufacturing low-temperature wind tunnel special-shaped flow deflector |
| CN114161065A (en) * | 2021-12-22 | 2022-03-11 | 一重集团大连核电石化有限公司 | Wind tunnel guide vane welding auxiliary device |
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| CN201922198U (en) * | 2010-12-24 | 2011-08-10 | 贵州永红航空机械有限责任公司 | Special-shaped radiator core assembling and welding fixture |
| CN203712165U (en) * | 2014-01-24 | 2014-07-16 | 余姚隆美通风工程有限公司 | Guiding vane welding positioning tool |
| CN204160085U (en) * | 2014-08-11 | 2015-02-18 | 杭州钱联散热器有限公司 | The jig of the different size gilled radiator welding of a kind of convenience |
| CN204954237U (en) * | 2015-09-18 | 2016-01-13 | 武汉一冶钢结构有限责任公司 | Supplementary welding set of wind -tunnel water conservancy diversion piece |
| CN105397352B (en) * | 2015-12-08 | 2017-05-10 | 浙江大学 | Welding device for motor seat radiating sheets |
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