CN112985787A - Card installing mechanism for high-temperature test of case - Google Patents
Card installing mechanism for high-temperature test of case Download PDFInfo
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- CN112985787A CN112985787A CN202110135404.1A CN202110135404A CN112985787A CN 112985787 A CN112985787 A CN 112985787A CN 202110135404 A CN202110135404 A CN 202110135404A CN 112985787 A CN112985787 A CN 112985787A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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Abstract
The application belongs to the field of aero-engine tests, and particularly relates to a card installing mechanism for a high-temperature test of a machine box. The method comprises the following steps: base, colored dish, heat preservation cover, adapter and machine casket test piece. The flower disc is fixedly arranged on the base, a gap is formed between the flower disc and the base, and heat insulation materials are filled in the gap; the heat-insulating cover is arranged on the flower disc, and a heating cavity is defined by the heat-insulating cover and the flower disc; the adapter cylinder is accommodated in the heating cavity and provided with an upper mounting edge and a lower mounting edge, and the lower mounting edge is connected with the faceplate through an axial positioning assembly, a radial positioning structure and a circumferential positioning assembly respectively; the casing test piece is accommodated in the heating cavity and connected with the upper mounting edge of the adapter cylinder. This application can realize the effective locking to a receiver switching section of thick bamboo under high temperature environment to have the secondary locking function, effectually solved current dress card mechanism and taken place not hard up the problem of inefficacy in the heating process.
Description
Technical Field
The application belongs to the field of aero-engine tests, and particularly relates to a card installing mechanism for a high-temperature test of a machine box.
Background
For aeroengine casings working at high temperature for a long time, such as turbine rear casings, a series of static and fatigue tests are required in the development process, and in order to better simulate the actual working environment of the casings, the tests are often required to be carried out in a high-temperature environment.
In the test process, the cartridge receiver test piece needs to be clamped and fixed on the test platform, so that the cartridge receiver test piece does not move or rotate under the action of test load. At present, a casing test piece is connected with an installation edge on an adapter cylinder through a bolt and a nut; a U-shaped groove is formed in the lower mounting edge of the adapter cylinder, and the adapter cylinder is pressed and fixed on a test platform with a T-shaped groove through a pressing mechanism consisting of foundation bolts, gaskets and nuts. The clamping structure can effectively lock the adapter cylinder in a room temperature environment, and further fix a casing test piece. However, in a high-temperature test of the cartridge, the locking mechanism locked in a room temperature environment may loosen during the heating process due to the influence of factors such as uneven heating of each component of the locking mechanism, difference of thermal expansion coefficients of materials, and the like. And because the cartridge receiver test piece, the adapter cylinder and the hold-down mechanism are required to be completely installed in the closed heating cavity for heating, the secondary locking cannot be carried out once the card installing mechanism is loosened in the heating process, and the card installing failure is caused. Therefore, this structure is not suitable for high temperature testing of the casing.
Accordingly, a technical solution is desired to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
The application aims at providing a cartridge loading mechanism for a high-temperature test of a cartridge receiver, and solving at least one problem existing in the prior art.
The technical scheme of the application is as follows:
the utility model provides a machine casket high temperature test is with dress card mechanism, includes:
a base;
the flower disc is fixedly arranged on the base, a gap is formed between the flower disc and the base, and heat insulation materials are filled in the gap;
the heat preservation cover is arranged on the flower disc, and the heat preservation cover and the flower disc enclose a heating cavity;
the adapter cylinder is accommodated in the heating cavity and provided with an upper mounting edge and a lower mounting edge, and the lower mounting edge is connected with the faceplate through an axial positioning assembly, a radial positioning structure and a circumferential positioning assembly respectively;
and the casing test piece is accommodated in the heating cavity and is connected with the upper mounting edge of the adapter cylinder.
Optionally, the device further comprises a base platform, and the base is fixed on the base platform.
Optionally, the axial positioning component comprises an anti-rotation bolt, an anti-rotation pressing plate, an adjusting screw, a first nut, and an anti-rotation screw, wherein,
the middle part of the anti-rotation pressing plate is provided with a first through hole, one end of the anti-rotation pressing plate is provided with a second through hole, the other end of the anti-rotation pressing plate is provided with a first threaded hole, the flower disc is provided with a third through hole, the base is provided with a fourth through hole, and the anti-rotation bolt sequentially penetrates through the first through hole, the third through hole and the fourth through hole and then is fixed through the first nut;
one end of the anti-rotation pressing plate, provided with a second through hole, is abutted against the lower mounting edge of the adapter cylinder, a second threaded hole is formed in the lower mounting edge of the adapter cylinder, and the anti-rotation screw penetrates through the second through hole and is mounted in the second threaded hole;
one end of the adjusting screw is abutted to the faceplate, and the other end of the adjusting screw is installed in the first threaded hole.
Optionally, the axial positioning assembly further comprises a first gasket, and the first gasket is used for being matched with the first nut to be fixed.
Optionally, a rectangular groove is formed in the anti-rotation pressing plate, the first through hole and the second through hole are formed in the rectangular groove, and the first threaded holes are symmetrically formed in the two side wall plates of the rectangular groove.
Optionally, the first through hole is a long hole, the bolt head of the anti-rotation bolt is provided with two limiting surfaces which are arranged in parallel, and after the anti-rotation bolt is assembled to the first through hole, the bolt head can be limited through the rectangular groove.
Optionally, the joint of the anti-rotation pressing plate and the lower mounting edge of the adapter cylinder is provided with 4 semicircular grooves.
Optionally, the radial positioning structure includes an annular spigot groove disposed on the faceplate and an annular spigot shoulder disposed on the lower mounting edge of the adapter cylinder, and the annular spigot groove is located on the radial inner side of the third through hole.
Optionally, the circumferential positioning assembly comprises a foundation bolt, a second nut and a second gasket, wherein a T-shaped groove is formed in the faceplate, a U-shaped groove is formed in the lower mounting edge of the adapter cylinder, and the foundation bolt is matched with the second nut and the second gasket and is fixedly mounted in the T-shaped groove and the U-shaped groove.
Optionally, a plurality of mounting holes are uniformly formed in the circumferential direction of the upper mounting edge of the adapter cylinder, and the casing test piece is connected with the upper mounting edge through a bolt and a nut.
The invention has at least the following beneficial technical effects:
the utility model provides a machine casket high temperature test is with dress card mechanism can realize the effective locking to a machine casket switching section of thick bamboo under high temperature environment to have the secondary locking function, effectually solved current dress card mechanism and taken place not hard up the problem of inefficacy in the heating process.
Drawings
FIG. 1 is a schematic view of an entire block loading mechanism for a high-temperature test of a casing according to an embodiment of the present disclosure;
FIG. 2 is a schematic view of an axial positioning assembly of a clamping mechanism for high-temperature testing of a casing according to an embodiment of the present application;
FIG. 3 is a schematic view of an anti-rotation pressing plate of the clamping mechanism for high-temperature testing of the casing according to one embodiment of the present application;
FIG. 4 is a sectional view of an anti-rotation pressing plate of the clamping mechanism for high-temperature testing of the casing according to one embodiment of the present application;
FIG. 5 is a schematic view of an anti-rotation bolt of the clamping mechanism for high-temperature testing of the casing according to one embodiment of the present application;
FIG. 6 is a schematic view of a bolt head of an anti-rotation bolt of the clamping mechanism for high-temperature testing of the casing according to one embodiment of the present application;
FIG. 7 is a schematic view of an adapter of a clamping mechanism for high-temperature testing of a casing according to an embodiment of the present application;
FIG. 8 is a schematic view of a lower mounting edge of an adapter of the clamping mechanism for high-temperature testing of the casing according to one embodiment of the present application;
FIG. 9 is a schematic view of a faceplate of a card loading mechanism for high temperature testing of a casing according to an embodiment of the present application;
FIG. 10 is a sectional view of a faceplate of a cartridge loading mechanism for a high temperature test of a casing according to an embodiment of the present application;
FIG. 11 is a schematic view of a circumferential positioning assembly of a clamping mechanism for high-temperature testing of a casing according to an embodiment of the present application;
fig. 12 is a view from direction a of fig. 11.
Wherein:
1-a heat preservation cover; 2-heating the cavity; 3-a cartridge receiver test piece; 4-a transfer cylinder; 41-a second threaded hole; 42-ring spigot shoulder; 43-U-shaped slots; 5-an axial positioning component; 51-anti-rotation bolts; 52-anti-rotation pressing plate; 53-adjusting screws; 54-a first shim; 55-a first nut; 56-anti-rotation screws; 6-flower disc; 61-a third via; 62-an annular spigot groove; 63-T-shaped grooves; 7-heat insulation material; 8-a base; 9-a circumferential positioning assembly; 91-foundation bolts; 92-a second nut; 93-second pad.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.
The present application will be described in further detail with reference to fig. 1 to 12.
The application provides a machine casket high temperature test is with dress card mechanism includes: the test device comprises a base 8, a faceplate 6, a heat preservation cover 1, an adapter 4 and a receiver test piece 3.
The casing test piece 3 mainly bears axial load, radial load and torque load around the axis of the casing in the test process, the three loads enable the casing test piece 3 to respectively generate trends of moving along the axial direction, moving along the radial direction and rotating around the axis, and the casing test piece 3 is clamped and fixed according to the three motion trends. Specifically, as shown in fig. 1, the card loading mechanism for the high-temperature test of the casing is characterized in that a base 8 is fixed on a base platform, a faceplate 6 is fixedly installed on the base 8, a gap is arranged between the faceplate 6 and the base 8, and a heat insulation material 7 is filled in the gap; the heat preservation cover 1 is arranged on the flower disc 6, and the heat preservation cover 1 and the flower disc 6 enclose a closed heating cavity 2; a switching section of thick bamboo 4 holds in the chamber 2 that heats, a switching section of thick bamboo 4 is provided with installation limit and lower installation limit, cartridge receiver test piece 3 holds in the chamber 2 that heats, cartridge receiver test piece 3 is connected with the last installation limit of a switching section of thick bamboo 4, the lower installation limit of a switching section of thick bamboo 4 is respectively through axial positioning subassembly 5, radial positioning structure and circumference locating component 9 are connected with colored dish 6, restriction cartridge receiver test piece 3 is along axial and radial removal under experimental load effect, and the rotation around the axis, thereby the realization is fixed to the dress card of cartridge receiver test piece 3.
In a preferred embodiment of the present application, as shown in fig. 2, the axial positioning component 5 includes an anti-rotation bolt 51, an anti-rotation pressing plate 52, an adjusting screw 53, a first nut 55, and an anti-rotation screw 56, wherein a first through hole is formed in the middle of the anti-rotation pressing plate 52, a second through hole is formed in one end of the anti-rotation pressing plate, a first threaded hole is formed in the other end of the anti-rotation pressing plate, a third through hole 61 is formed in the faceplate 6, a fourth through hole is formed in the base 8, and the anti-rotation bolt 51 is fixed by the first nut 55 after sequentially passing through the first through hole, the third through hole 61, and; one end of the anti-rotation pressing plate 52, which is provided with the second through hole, is abutted against the lower mounting edge of the adapter cylinder 4, the lower mounting edge of the adapter cylinder 4 is provided with a second threaded hole 41, and an anti-rotation screw 56 penetrates through the circular second through hole and is mounted in the second threaded hole 41, so that the anti-rotation pressing plate 52 is prevented from rotating when the first nut 55 is screwed; one end of the adjusting screw 53 is abutted to the faceplate 6, the other end of the adjusting screw is installed in the first threaded hole, and the pressing of structures with different thicknesses can be realized by adjusting the height of the adjusting screw 53. In this embodiment, prevent changeing bolt 51 and being connected with first nut 55, because first nut 55 is installed outside heating chamber 2, in case axial positioning subassembly 5 takes place to become flexible in the heating process, the accessible is screwed up first nut 55 and is carried out secondary locking to axial positioning subassembly 5. After the adjusting screw 53 is adjusted to a proper height, the first nut 55 is screwed, the lower mounting edge of the adapter cylinder 4 is pressed, and the casing test piece 3 is axially fixed.
Advantageously, in this embodiment, the axial positioning assembly 5 further comprises a first washer 54, the first washer 54 being adapted to cooperate with the first nut 55 for fixing.
In a preferred embodiment of the present application, as shown in fig. 3 to 6, the anti-rotation pressing plate 52 is provided with a rectangular groove, the first through hole and the second through hole are provided in the rectangular groove, and the first threaded holes are symmetrically provided on two side wall plates of the rectangular groove. Advantageously, in this embodiment, the first through hole is a long hole formed along the central line of the anti-rotation pressing plate 52, so that the position of the anti-rotation pressing plate 52 can be properly adjusted, the bolt head of the anti-rotation bolt 51 has two limiting surfaces arranged in parallel, and after the anti-rotation bolt 51 is assembled to the first through hole, the bolt head can be clamped in the rectangular groove for limiting, so as to prevent the anti-rotation bolt 51 from rotating when the first nut 55 is screwed. Further, in this embodiment, the side sets up to the inclined plane form on the one end that the clamp plate 52 prevents being provided with the second through-hole, prevents changeing the downside of clamp plate 52 and has seted up 4 semicircular grooves with the lower installation limit butt department of a switching section of thick bamboo 4 for improve clamp plate and installation limit surface contact state, increase frictional force.
In a preferred embodiment of the present application, the adapter 4 is structured as shown in fig. 7 to 8, a plurality of mounting holes are uniformly formed in the circumferential direction on the upper mounting edge of the adapter 4, and the casing test piece 3 can be connected to the upper mounting edge through bolts and nuts. The lower mounting edge of the adapter cylinder 4 is provided with 24 second threaded holes 41 for mounting anti-rotation screws 56, the surface contacting with the faceplate 6 is provided with an annular shoulder 42 structure, and the outer edge is uniformly provided with 12U-shaped grooves 43 along the circumferential direction.
In a preferred embodiment of the present application, the faceplate 6 is constructed as shown in fig. 9-10, and has 12 first through holes 61 uniformly distributed in the circumferential direction for mounting the anti-rotation bolts 51, and an annular stop groove 62 is formed on the contact surface of the lower mounting edge of the adapter cylinder 4, and the annular stop groove 62 is located radially inside the third through hole 61.
The utility model provides a machine casket high temperature test is with dress card mechanism, radial positioning structure is including setting up annular tang groove 62 on face plate 6 and setting up the annular tang abrupt shoulder 42 on the lower installation limit of a switching section of thick bamboo 4, during the installation, align the annular tang groove 62 of face plate 6 with the annular tang abrupt shoulder 42 on the lower installation limit of a switching section of thick bamboo 4, axial positioning subassembly compresses tightly the back with a switching section of thick bamboo 4, the annular tang 42 of a switching section of thick bamboo 4 is impressed in the annular tang groove 62 of face plate 6, machine casket testpieces 3 are by radial fixation. The big clearance fit is adopted with the tang to the shoulder suddenly, prevents that the face plate 6 and the discordance of switching section of thick bamboo 4 deformation after the heating from causing the contact surface extrusion damage, and radial positioning structure can guarantee the mounted position of machine casket testpieces 3 on the tester, reduces installation error.
11-12, the circumferential positioning component 9 includes an anchor bolt 91, a second nut 92 and a second gasket 93, wherein the anchor bolt 91 is fixedly mounted in the T-shaped groove 63 and the U-shaped groove 43 in cooperation with the second nut 92 and the second gasket 93. During the installation, align the U-shaped groove on the section of thick bamboo 4 and the T-slot on the flower disc 6, pack into rag bolt 91 in the T-shaped groove, rag bolt 91 passes T-shaped groove, U-shaped groove, second gasket 93 and second nut 92 in proper order, screws up behind the second nut 92, and machine casket test piece 3 is fixed by circumference.
The clamping mechanism for the high-temperature test of the casing can effectively lock the casing adapter cylinder in a high-temperature environment, and can ensure that a casing test piece does not move axially and radially and rotate around an axis when bearing a test load in the high-temperature test process of the casing; the secondary locking function is provided, the problem that the card installing mechanism is loosened and fails in the heating process due to the fact that the thermal expansion coefficients of all parts are different and the parts are heated unevenly and other objective factors can be solved, and once the card installing mechanism is loosened in the heating process, secondary locking can be carried out, so that the effectiveness of the card installing mechanism is guaranteed.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a machine casket high temperature test is with dress card mechanism which characterized in that includes:
a base (8);
the flower disc (6) is fixedly arranged on the base (8), a gap is formed between the flower disc (6) and the base (8), and a heat-insulating material (7) is filled in the gap;
the heat preservation cover (1) is arranged on the flower disc (6), and the heat preservation cover (1) and the flower disc (6) enclose a heating cavity (2);
the adapter cylinder (4) is accommodated in the heating cavity (2), an upper mounting edge and a lower mounting edge are arranged on the adapter cylinder (4), and the lower mounting edge is connected with the faceplate (6) through an axial positioning assembly (5), a radial positioning structure and a circumferential positioning assembly (9) respectively;
the casing test piece (3) is accommodated in the heating cavity (2), and the casing test piece (3) is connected with the upper mounting edge of the adapter cylinder (4).
2. The clamping mechanism for the high-temperature test of the casing as claimed in claim 1, further comprising a base platform, wherein the base (8) is fixed on the base platform.
3. The clamping mechanism for the high-temperature test of the casing according to claim 1, wherein the axial positioning component (5) comprises an anti-rotation bolt (51), an anti-rotation pressing plate (52), an adjusting screw (53), a first nut (55) and an anti-rotation screw (56), wherein,
a first through hole is formed in the middle of the anti-rotation pressing plate (52), a second through hole is formed in one end of the anti-rotation pressing plate, a first threaded hole is formed in the other end of the anti-rotation pressing plate, a third through hole (61) is formed in the faceplate (6), a fourth through hole is formed in the base (8), and the anti-rotation bolt (51) sequentially penetrates through the first through hole, the third through hole (61) and the fourth through hole and then is fixed through the first nut (55);
one end of the anti-rotation pressing plate (52) provided with a second through hole is abutted against the lower mounting edge of the adapter cylinder (4), the lower mounting edge of the adapter cylinder (4) is provided with a second threaded hole (41), and the anti-rotation screw (56) penetrates through the second through hole and is mounted in the second threaded hole (41);
one end of the adjusting screw (53) abuts against the faceplate (6), and the other end of the adjusting screw is installed in the first threaded hole.
4. The clamping mechanism for the high-temperature test of the casing as recited in claim 3, wherein the axial positioning assembly (5) further comprises a first gasket (54), and the first gasket (54) is used for being fixed by matching with the first nut (55).
5. The clamping mechanism for the high-temperature test of the cartridge receiver according to claim 4, wherein a rectangular groove is formed in the anti-rotation pressing plate (52), the first through hole and the second through hole are formed in the rectangular groove, and the first threaded holes are symmetrically formed in two side wall plates of the rectangular groove.
6. The clamping mechanism for the high-temperature test of the casing as recited in claim 5, wherein the first through hole is a long hole, a bolt head of the anti-rotation bolt (51) has two limiting surfaces arranged in parallel, and when the anti-rotation bolt (51) is assembled to the first through hole, the bolt head can be limited by the rectangular groove.
7. The clamping mechanism for the high-temperature test of the casing as claimed in claim 6, wherein the joint of the anti-rotation pressing plate (52) and the lower mounting edge of the adapter cylinder (4) is provided with 4 semicircular grooves.
8. The clamping mechanism for the high-temperature test of the casing as recited in claim 3, wherein the radial positioning structure comprises an annular spigot groove (62) arranged on the faceplate (6) and an annular spigot shoulder (42) arranged on a lower mounting edge of the adapter cylinder (4), and the annular spigot groove (62) is positioned on the radial inner side of the third through hole (61).
9. The clamping mechanism for the high-temperature test of the casing as claimed in claim 3, wherein the circumferential positioning assembly (9) comprises an anchor bolt (91), a second nut (92) and a second gasket (93), wherein a T-shaped groove (63) is formed in the faceplate (6), a U-shaped groove (43) is formed in the lower mounting edge of the adapter cylinder (4), and the anchor bolt (91) is fixedly mounted in the T-shaped groove (63) and the U-shaped groove (43) in cooperation with the second nut (92) and the second gasket (93).
10. The clamping mechanism for the high-temperature test of the casing as recited in claim 1, wherein a plurality of mounting holes are uniformly formed in the circumferential direction of the upper mounting edge of the adapter cylinder (4), and the casing test piece (3) is connected with the upper mounting edge through bolts and nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110135404.1A CN112985787B (en) | 2021-02-01 | 2021-02-01 | Card installing mechanism for high-temperature test of case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110135404.1A CN112985787B (en) | 2021-02-01 | 2021-02-01 | Card installing mechanism for high-temperature test of case |
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| Publication Number | Publication Date |
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| CN112985787A true CN112985787A (en) | 2021-06-18 |
| CN112985787B CN112985787B (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110135404.1A Active CN112985787B (en) | 2021-02-01 | 2021-02-01 | Card installing mechanism for high-temperature test of case |
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| CN110788543A (en) * | 2019-10-31 | 2020-02-14 | 中国航发南方工业有限公司 | Welding positioning device and welding positioning method for combined casing |
| CN210364432U (en) * | 2019-07-26 | 2020-04-21 | 中国航发沈阳发动机研究所 | Loading switching section structure for engine case mounting edge |
| CN111975406A (en) * | 2020-08-20 | 2020-11-24 | 杭州天扬机械有限公司 | Fixture for processing annular casing of aero-engine with large length-diameter ratio |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120032053A1 (en) * | 2009-02-20 | 2012-02-09 | Rolls-Royce Plc | Fixture for securing a thin-walled component |
| CN105547702A (en) * | 2015-12-10 | 2016-05-04 | 中国飞机强度研究所 | High-temperature and high-voltage testing device for engine case |
| CN110095240A (en) * | 2018-01-30 | 2019-08-06 | 中国航发商用航空发动机有限责任公司 | Turbogenerator casing stiffness test secondary load device |
| CN208696837U (en) * | 2018-07-31 | 2019-04-05 | 株洲格斯特动力机械有限责任公司 | For processing the fixing tool of double of casing part |
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| CN111975406A (en) * | 2020-08-20 | 2020-11-24 | 杭州天扬机械有限公司 | Fixture for processing annular casing of aero-engine with large length-diameter ratio |
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| Publication number | Publication date |
|---|---|
| CN112985787B (en) | 2022-10-28 |
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