CN107084311B - Method for manufacturing pneumatic elastic model of gas cabinet body - Google Patents
Method for manufacturing pneumatic elastic model of gas cabinet body Download PDFInfo
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- CN107084311B CN107084311B CN201710487894.5A CN201710487894A CN107084311B CN 107084311 B CN107084311 B CN 107084311B CN 201710487894 A CN201710487894 A CN 201710487894A CN 107084311 B CN107084311 B CN 107084311B
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- cabinet body
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17B—GAS-HOLDERS OF VARIABLE CAPACITY
- F17B1/00—Gas-holders of variable capacity
- F17B1/24—Gas-holders of variable capacity of dry type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17B—GAS-HOLDERS OF VARIABLE CAPACITY
- F17B1/00—Gas-holders of variable capacity
- F17B1/02—Details
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- General Engineering & Computer Science (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a method for manufacturing a gas chamber body aeroelasticity model, which is characterized by comprising the following steps: manufacturing a central supporting cylinder, and axially arranging a plurality of test sites on the central supporting cylinder; step two, manufacturing a piston assembly, and sleeving the piston assembly at any test site on the central supporting cylinder; thirdly, erecting a gas cabinet body frame, and then sleeving the gas cabinet body frame outside the central support cylinder and the piston assembly; and fourthly, covering a cabinet body outer skin outside the gas cabinet body frame. The method has the obvious effects that a gas chamber model close to a gas chamber in actual production can be obtained, and the gas chamber model can accurately and really simulate the state of the gas chamber in actual production, including simulating the suspension state of a piston, the translation state during suspension, the lifting of the piston and the like; when the wind tunnel test aeroelasticity model is researched, the test result is more accurate.
Description
Technical Field
The invention relates to a civil engineering wind tunnel test, in particular to a manufacturing method of a gas cabinet body aeroelasticity model.
Background
The gas holder is a steel container for storing industrial and civil gas, and includes a wet gas holder and a dry gas holder. The wet gas holder is a sleeve type cylindrical structure sealed by water; the dry gas chamber is a piston structure sealed by thin (dry) oil or flexible membrane. The bell jar, the tower and the piston of the gas chamber are of movable structures, bear gas pressure and ensure good sealing performance, and the installation precision requirement is high. The gas holder body is made of carbon steel and low alloy steel. The construction site connection modes include riveting, welding and high-strength bolt connection. The welding is generally carried out by manual welding and CO2And (4) gas shielded welding. The cabinet top truss and the cabinet top plate are usually mounted by means of a central gantry provided. In the operation stage of the dry gas chamber, a large-mass piston inside the dry gas chamber is supported by air pressure to move up and down along the inner side of the upright post of the chamber body. In the wind tunnel test research of the gas tank aeroelastic model, the piston cannot float due to the atmospheric pressure below the piston. At present, the gas in the traditional space structureThe node coupling processing mode adopted in most elastic model wind tunnel tests is to lock or fasten the contact point of the piston and the cabinet body; the suspension state of the piston is greatly different from the actual suspension state of the piston, the actual state of the piston contacting with the cabinet body cannot be accurately simulated, and the accuracy of the test is difficult to ensure.
Disclosure of Invention
In order to solve the technical problems, the invention provides a method for manufacturing a gas chamber body aeroelastic model.
The specific scheme is as follows:
a manufacturing method of a gas holder body aeroelastic model is characterized by comprising the following steps:
manufacturing a central supporting cylinder, and axially arranging a plurality of test sites on the central supporting cylinder;
step two, manufacturing a piston assembly, and sleeving the piston assembly at any test site on the central supporting cylinder;
thirdly, erecting a gas cabinet body frame, and then sleeving the gas cabinet body frame outside the central support cylinder and the piston assembly;
and fourthly, covering a cabinet body outer skin outside the gas cabinet body frame.
As a preferable scheme, in the fourth step, firstly, a double-sided adhesive tape is attached to the gas cabinet body frame, and then the cabinet body outer skin is attached to the gas cabinet body frame.
As a preferred scheme, in step four, the cabinet body outer skin comprises a plurality of aluminum plates, the aluminum plates are sequentially connected end to form the cabinet body outer skin, and each aluminum plate is adhered to the gas cabinet body frame through double-sided adhesive.
Preferably, in the first step, the central support cylinder includes a cylinder body, a plurality of screw hole groups are axially arranged on an outer wall of the cylinder body, the screw hole groups form test sites, each screw hole group includes at least 3 positioning screw holes, all the positioning screw holes in the same screw hole group are annularly distributed on the outer wall of the cylinder body, a piston support member is arranged on any test site, the piston support member is a support bolt, and the support bolts are respectively arranged in all the positioning screw holes in the same screw hole group.
Preferably, in the first step, at least 3 leveling support legs are arranged at the lower end of the cylinder in the circumferential direction, each leveling support leg comprises a rib plate which is vertically arranged, the rib plates are welded with the outer wall of the cylinder, the lower edges of the rib plates are horizontally connected with a supporting bottom plate, and a leveling bolt penetrates through vertical threads on the supporting bottom plate.
Preferably, in the second step, the piston assembly includes a piston support plate, a piston mold is disposed above the piston support plate, the piston mold includes a mold frame, a piston suspension pad is disposed between the mold frame and the piston support plate, the piston suspension pad is fixed to the mold frame, a rolling support member is disposed on an upper surface of the piston support plate, the piston suspension pad falls on the rolling support member, and an inner edge of the piston support plate is overlapped with the support bolt.
Preferably, at least three rolling support members are circumferentially distributed on the piston support plate, each rolling support member comprises a mounting seat body and a support ball embedded in the mounting seat body in a rolling manner, and the mounting seat body is fixed on the piston support plate so that the support ball supports the piston suspension base plate.
As a preferred scheme, in the third step, the gas cabinet body frame comprises at least two cylindrical supports, the cylindrical supports are axially and sequentially spliced to form the gas cabinet body frame, and two adjacent cylindrical supports are connected through a connecting piece;
the connecting piece comprises an upper upright and a lower upright which are butted along the same vertical direction, the lower end of the upper upright and the upper end of the lower upright are connected with the same connecting plate, the lower end of the upper upright and the upper end of the lower upright are provided with connecting bayonets matched with the connecting plates, the connecting plates are positioned in the connecting bayonets, the connecting plates are respectively connected with the upper upright and the lower upright through upright fixing bolts, the upper upright is connected with the cylindrical support above, and the lower upright is connected with the cylindrical support below.
As preferred scheme, the cylindric support includes the round stand that a plurality of levels set up, and is a plurality of same vertical direction distribution is followed to the round stand, the cylindric support still includes a plurality of pole settings, and is a plurality of the pole setting is followed the central hoop of round stand distributes, and is same the pole setting is with all the round stand is connected, round stand and pole setting cross connection form latticed the cylindric support be connected with the down tube between the net node of cylindric support, the lower extreme downwardly extending of pole setting forms the upper column, the upper end of pole setting upwards extends and forms the lower column, weld between cylindric support, pole setting and the down tube circular stand, pole setting and down tube are last to laminate respectively the double faced adhesive tape.
Preferably, after the piston assembly is manufactured in the second step, a floating guide is arranged on the piston assembly;
the floating guide piece comprises a fixed seat fixed on the piston assembly, an elastic piece is arranged on the fixed seat and faces towards the cabinet body frame of the gas cabinet, and a guide roller is arranged on the elastic piece and rolls along the vertical rod.
The elastic piece comprises a piston rod which is horizontally arranged on the fixing seat in a penetrating mode, the piston rod faces one end of the gas cabinet body frame, a U-shaped clamp is installed at one end of the gas cabinet body frame, the guide roller is installed between two vertical parts of the U-shaped clamp, a pressure spring is sleeved on the piston rod between the fixing seat and the U-shaped clamp, a lock pin is arranged on the piston rod on the other side of the fixing seat, the vertical rod is located between the two vertical parts of the U-shaped clamp, and the rolling surface of the guide roller is attached to the vertical rod.
Has the advantages that: by adopting the manufacturing method of the gas holder pneumatic elastic model, a gas holder model close to a gas holder in actual production can be obtained, and the gas holder model can accurately and truly simulate the state of the gas holder in actual production, including simulating the suspension state of a piston, the translation state during suspension, the lifting of the piston and the like; when the wind tunnel test aeroelasticity model is researched, the test result is more accurate.
Drawings
FIG. 1 is a schematic structural diagram of a gas holder body aeroelastic model;
FIG. 2 is a view showing the piston assembly b and the center support cylinder a in an assembled relationship;
FIG. 3 is a horizontal cross-sectional view of FIG. 1;
FIG. 4 is a schematic structural view of a center support cylinder a;
FIG. 5 is a top view of FIG. 4;
FIG. 6 is a schematic structural view of a piston assembly b;
FIG. 7 is a schematic view of the mounting of the rolling support b4 on the piston support plate b 1;
fig. 8 is a schematic view showing the distribution of the rolling support b4 on the piston support plate b 1;
FIG. 9 is a schematic structural view of the coupling c 3;
fig. 10 is a structural view of a floating guide d 2;
fig. 11 is a top view of fig. 10.
Detailed Description
The invention is further illustrated by the following examples and figures.
Referring to fig. 1 to 11, a method for manufacturing an aeroelastic model of a gas holder body is characterized by comprising the following steps:
firstly, manufacturing a central support cylinder a, and axially arranging a plurality of test sites on the central support cylinder a;
the central supporting cylinder a comprises a cylinder body a1, a plurality of groups of screw hole groups are axially arranged on the outer wall of the cylinder body a1, the screw hole groups form test sites, each group of screw hole groups comprises at least 3 positioning screw holes a4, all the positioning screw holes a4 in the same group of screw hole groups are annularly distributed on the outer wall of the cylinder body a1, a piston supporting piece a3 is arranged on any test site, the piston supporting piece a3 is a supporting bolt, and the supporting bolts are respectively arranged in all the positioning screw holes a4 in the same group of screw hole groups.
At least 3 leveling support feet a2 are arranged at the lower end of the cylinder a1 in the circumferential direction, each leveling support foot a2 comprises a ribbed plate a7 which is vertically arranged, the ribbed plate a7 is welded with the outer wall of the cylinder a1, the lower edge of the ribbed plate a7 is horizontally connected with a supporting bottom plate a5, and a leveling bolt a6 penetrates through the vertical thread on the supporting bottom plate a 5.
Step two, manufacturing a piston assembly b, and sleeving the piston assembly b at any test site on the central support cylinder a;
the piston assembly b comprises a piston support plate b1, a piston model b2 is arranged above the piston support plate b1, the piston model b2 comprises a model frame b8, a piston suspension cushion plate b3 is arranged between the model frame b8 and the piston support plate b1, the piston suspension cushion plate b3 is fixed with a model frame b8, a rolling support b4 is arranged on the upper surface of the piston support plate b1, the piston suspension cushion plate b3 falls on the rolling support b4, the piston support plate b1, the piston suspension cushion plate b3 and the model frame b8 are all in a circular ring shape, the annular centers of the piston support plate b1, the piston suspension cushion plate b3 and the model frame b8 are overlapped, the piston support plate b1, the piston suspension cushion plate b3 and the model frame b8 are sleeved on the cylinder body a1, and the inner edge of the piston support plate b1 is overlapped on the support bolt.
At least three rolling support pieces b4 are circumferentially distributed on the piston support plate b1, each rolling support piece b4 comprises a mounting seat body b5 and a support ball b6 which is embedded in the mounting seat body b5 in a rolling mode, the mounting seat body b5 is fixed on the piston support plate b1, and the support ball b6 lifts the piston suspension cushion plate b 3; a support mounting hole is formed in the piston supporting plate b1 corresponding to the rolling support b4, a horizontal support lug b7 is arranged on the mounting seat body b5, the mounting seat body b5 sinks downwards into the support mounting hole, and the horizontal support lug b7 is attached to the upper surface of the piston supporting plate b1 and is fixedly connected with the piston supporting plate b 1.
Step three, arranging a floating guide d2 on the piston assembly b;
the floating guide piece d2 comprises a fixed seat d3 fixed on the piston assembly b, an elastic piece is arranged on the fixed seat d3 and faces to the gas holder body frame c2, and a guide roller d5 is arranged on the elastic piece.
The elastic piece comprises a piston rod d4 horizontally arranged on the fixed seat d3 in a penetrating mode, a U-shaped clamp d7 is installed at one end, facing the gas cabinet body frame c2, of the piston rod d4, the guide roller d5 is installed between two vertical parts of the U-shaped clamp d7, a pressure spring d6 is sleeved on a piston rod d4 between the fixed seat d3 and the U-shaped clamp d7, and a lock pin is arranged on the piston rod d4 on the other side of the fixed seat d 3.
Step four, erecting a gas cabinet body frame c2, and then sleeving the gas cabinet body frame c2 outside the central support cylinder a and the piston assembly b;
the gas holder body frame c2 comprises at least two cylindrical supports c1, the cylindrical supports c1 are axially and sequentially spliced to form the gas holder body frame c2, and two adjacent cylindrical supports c1 are connected through a connecting piece c 3;
the connecting piece c3 comprises an upper upright post c4 and a lower upright post c5 which are butted along the same vertical direction, the lower end of the upper upright post c4 and the upper end of the lower upright post c5 are connected with the same connecting plate c6, the lower end of the upper upright post c4 and the upper end of the lower upright post c5 are provided with connecting bayonets matched with the connecting plate c6, the connecting plate c6 is positioned in the connecting bayonets, the connecting plate c6 is respectively connected with the upper upright post c4 and the lower upright post c5 through upright post fixing bolts, the upper upright post c4 is connected with the upper cylindrical support c1, and the lower upright post c5 is connected with the lower cylindrical support c 1.
The cylindrical support c1 comprises a plurality of horizontally arranged circular supports c7, a plurality of circular supports c7 are distributed in the same vertical direction, the cylindrical support c1 further comprises a plurality of uprights c8, a plurality of uprights c8 are distributed annularly along the center of the circular support c7, the same upright c8 is connected with all the circular supports c7, the circular supports c7 and the uprights c8 are connected in a crossed manner to form a grid-shaped cylindrical support c1, diagonal rods c10 are connected between grid nodes of the cylindrical support c1, the lower end of the upright c8 extends downwards to form the upper upright c4, the upper end of the upright c8 extends upwards to form the lower upright c5, and the cylindrical support c1, the uprights c8 and the diagonal rods c10 are welded; the upright c8 is located between two vertical parts of the U-shaped card d7, and the rolling surface of the guide roller d5 is attached to the upright c 8.
And step five, covering a cabinet body outer skin c9 outside the gas cabinet body frame c 2.
Cabinet body crust c9 includes polylith aluminum plate, polylith aluminum plate connects gradually end to end and forms cabinet body crust c9 earlier have laminated respectively on circular frame c7, pole setting c8 and down tube c10 the double faced adhesive tape, will every again aluminum plate passes through double faced adhesive tape and pastes on the gas chamber cabinet body frame c 2.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (1)
1. A manufacturing method of a gas holder body aeroelastic model is characterized by comprising the following steps:
manufacturing a central support cylinder (a), and axially arranging a plurality of test sites on the central support cylinder (a);
step two, manufacturing a piston assembly (b), and sleeving the piston assembly (b) at any test site on the central support cylinder (a);
step three, erecting a gas cabinet body frame (c2), and then sleeving the gas cabinet body frame (c2) outside the central support cylinder (a) and the piston assembly (b);
fourthly, covering a cabinet body outer skin (c9) outside the gas cabinet body frame (c 2);
in the fourth step, firstly, a double-sided adhesive tape is attached to the gas cabinet body frame (c2), and then the cabinet body outer skin (c9) is attached to the gas cabinet body frame (c 2);
in the fourth step, the cabinet body outer skin (c9) comprises a plurality of aluminum plates which are sequentially connected end to form the cabinet body outer skin (c9), and each aluminum plate is adhered to the gas cabinet body frame (c2) through double-sided adhesive;
in the third step, the gas holder body frame (c2) comprises at least two cylindrical supports (c1), the cylindrical supports (c1) are axially and sequentially spliced to form the gas holder body frame (c2), and two adjacent cylindrical supports (c1) are connected through a connecting piece (c 3);
the coupling piece (c3) comprises an upper upright post (c4) and a lower upright post (c5) which are butted in the same vertical direction, the lower end of the upper upright post (c4) and the upper end of the lower upright post (c5) are connected with the same coupling plate (c6), the lower end of the upper upright post (c4) and the upper end of the lower upright post (c5) are provided with connecting bayonets matched with the coupling plate (c6), the coupling plate (c6) is positioned in the connecting bayonets, the coupling plate (c6) is respectively connected with the upper upright post (c4) and the lower upright post (c5) through upright post fixing bolts, the upper upright post (c4) is connected with the upper cylindrical bracket (c1), and the lower upright post (c5) is connected with the lower cylindrical bracket (c 1);
in the first step, the central support cylinder (a) comprises a cylinder body (a1), multiple sets of screw hole sets are axially arranged on the outer wall of the cylinder body (a1), the screw hole sets form the test sites, each set of screw hole set comprises at least 3 positioning screw holes (a4), all the positioning screw holes (a4) in the same set of screw hole sets are annularly distributed on the outer wall of the cylinder body (a1), a piston support member (a3) is arranged on any test site, the piston support member (a3) is a support bolt, and the support bolts are respectively arranged in all the positioning screw holes (a4) in the same set of screw hole sets;
in the first step, at least 3 leveling legs (a2) are arranged at the lower end of the cylinder (a1) in an annular mode, each leveling leg (a2) comprises a rib plate (a7) which is vertically arranged, the rib plate (a7) is welded with the outer wall of the cylinder (a1), the lower edge of the rib plate (a7) is horizontally connected with a supporting bottom plate (a5), and a leveling bolt (a6) penetrates through the vertical thread of the supporting bottom plate (a 5);
in the second step, the piston assembly (b) comprises a piston support plate (b1), a piston model (b2) is arranged above the piston support plate (b1), the piston model (b2) comprises a model frame (b8), a piston suspension backing plate (b3) is arranged between the model frame (b8) and the piston support plate (b1), the piston suspension backing plate (b3) is fixed with the model frame (b8), a rolling support piece (b4) is arranged on the upper surface of the piston support plate (b1), the piston suspension backing plate (b3) falls on the rolling support piece (b4), and the inner edge of the piston support plate (b1) is lapped on the support bolt;
at least three rolling support pieces (b4) are circumferentially distributed on the piston support plate (b1), each rolling support piece (b4) comprises a mounting seat body (b5) and a support ball (b6) which is embedded in the mounting seat body (b5) in a rolling mode, the mounting seat body (b5) is fixed on the piston support plate (b1), and the support ball (b6) lifts the piston suspension cushion plate (b 3);
the cylindrical support (c1) comprises a plurality of horizontally arranged circular frames (c7), a plurality of circular frames (c7) are distributed along the same vertical direction, the cylindrical support (c1) further comprises a plurality of vertical rods (c8), a plurality of vertical rods (c8) are distributed along the central ring direction of the circular frames (c7), the same vertical rod (c8) is connected with all the circular frames (c7), the circular frames (c7) and the vertical rods (c8) are connected in a cross mode to form the grid-shaped cylindrical support (c1), oblique rods (c10) are connected between grid nodes of the cylindrical support (c1), the lower ends of the vertical rods (c8) extend downwards to form the upper vertical rods (c4), the upper ends of the vertical rods (c8) extend upwards to form the lower vertical rods (c5), the cylindrical support (c1), the vertical rods (c 395) and the oblique rods (c10) are welded between the circular frames (c 573) 24 c10), and the circular frames (c 573) are welded together, The vertical rod (c8) and the diagonal rod (c10) are respectively adhered with the double-sided adhesive tape;
after the piston assembly (b) is manufactured in the second step, a floating guide (d2) is arranged on the piston assembly (b);
the floating guide piece (d2) comprises a fixed seat (d3) fixed on the piston assembly (b), an elastic piece is arranged on the fixed seat (d3) and faces the gas cabinet body frame (c2), a guide roller (d5) is arranged on the elastic piece, and the guide roller (d5) rolls along the vertical rod (c 8);
the elastic piece comprises a piston rod (d4) horizontally arranged on the fixed seat (d3) in a penetrating mode, a U-shaped clamp (d7) is installed on one end, facing to a gas cabinet body frame (c2), of the piston rod (d4), a guide roller (d5) is installed between two vertical portions of the U-shaped clamp (d7), a pressure spring (d6) is sleeved on the piston rod (d4) between the fixed seat (d3) and the U-shaped clamp (d7), a lock pin is arranged on the piston rod (d4) on the other side of the fixed seat (d3), the upright rod (c8) is located between the two vertical portions of the U-shaped clamp (d7), and a rolling surface of the guide roller (d5) is attached to the upright rod (c 8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710487894.5A CN107084311B (en) | 2017-06-23 | 2017-06-23 | Method for manufacturing pneumatic elastic model of gas cabinet body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710487894.5A CN107084311B (en) | 2017-06-23 | 2017-06-23 | Method for manufacturing pneumatic elastic model of gas cabinet body |
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| Publication Number | Publication Date |
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| CN107084311A CN107084311A (en) | 2017-08-22 |
| CN107084311B true CN107084311B (en) | 2020-06-26 |
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| CN201710487894.5A Active CN107084311B (en) | 2017-06-23 | 2017-06-23 | Method for manufacturing pneumatic elastic model of gas cabinet body |
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