CN110864859A

CN110864859A - General type extension anchor clamps of mechanical environment test of awl shell component

Info

Publication number: CN110864859A
Application number: CN201911113064.1A
Authority: CN
Inventors: 王心美; 刘浩; 余志远; 李磊; 岳珠峰
Original assignee: Northwestern Polytechnical University
Current assignee: Northwestern Polytechnical University
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-03-06

Abstract

The utility model relates to a general extension fixture for the mechanical environment test of a conical shell component, which comprises an installation bottom plate, an extension plate and a cylinder body; the mounting bottom plate is provided with a plurality of first mounting holes and is used for being connected with the table top of the target vibration table through the first mounting holes; the expansion plate is annular and provided with a plurality of second mounting holes, and the expansion plate is used for being connected with a target radial test fixture during test on the conical shell component sliding table through the second mounting holes; be equipped with a plurality of through-holes on the barrel, just the barrel includes the open end of two intercommunications, mounting plate locates on the open end of barrel, the expansion board is located on the other open end of barrel. The utility model provides a general type extension anchor clamps of mechanical environment test of awl shell component, the quality is little and simple to operate, is favorable to the awl shell component to carry out high-order vibration test in the axial.

Description

General type extension anchor clamps of mechanical environment test of awl shell component

Technical Field

The utility model relates to a awl shell component mechanical test technical field particularly, relates to a general type extension anchor clamps of mechanical environment test of awl shell component.

Background

When a segmented conical shell component widely existing in an aircraft is tested in a mechanical environment, tests in three mutually perpendicular directions are usually required to be performed, the conical shell component is connected with a table top of a vibration table for an axial test after being connected through clamp switching during the tests, and is connected with a sliding table of the vibration table for radial tests in two mutually perpendicular directions.

Generally, the shaking table mesa is circular and the diameter is less, the slip table is rectangle and size greatly usually, when the installation face diameter of awl shell component is great, for example, be greater than twice shaking table mesa diameter, in order to the first-order natural frequency of as high as possible improvement anchor clamps, an axial test anchor clamps for shaking table mesa designs for higher cavity back taper body usually, and because the slip table size is great, a radial test anchor clamps for shaking table slip table is too high for avoiding the focus, design for lower cavity back taper body usually, anchor clamps bottom surface installation size is great this moment, unable directly mounted carries out the axial test to the shaking table mesa, if utilize the supporting extension platform of shaking table to carry out the switching, because the extension platform quality is general very big, must cause axial test shaking table thrust can't satisfy awl shell component axial test condition.

Generally, for a conical shell component, two clamps are designed for axial test and radial test respectively. When the awl shell component kind is more, the manufacturing cost of anchor clamps will greatly increase, because radial and axial test anchor clamps are different simultaneously, when the conversion test direction, except changing anchor clamps still need dismouting awl shell component, also can lead to the test inefficiency.

It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The utility model aims to provide a mechanical environment test universal type extension anchor clamps of awl shell component can reduce anchor clamps manufacturing cost, improves test efficiency.

According to an aspect of the present disclosure, there is provided a mechanical environment test universal type extension fixture for a conical shell member, the fixture including:

the mounting base plate is provided with a plurality of first mounting holes and is used for being connected with the table top of the target vibration table through the first mounting holes;

the expansion plate is annular and provided with a plurality of second mounting holes, and the expansion plate is used for being connected with a target radial test fixture during a test on the conical shell component sliding table through the second mounting holes;

the barrel, be equipped with a plurality of through-holes on the barrel, the barrel includes the open end of two intercommunications, mounting plate locates on the open end of barrel, the expansion board is located on the other open end of barrel.

In an exemplary embodiment of the disclosure, the plurality of through holes are annularly distributed along a circumferential direction of the central axis of the cylinder.

In an exemplary embodiment of the present disclosure, a plurality of reinforcing ribs are disposed on an outer circumferential surface of the cylinder, the reinforcing ribs are connected to the expansion plate, and the through hole is located between two adjacent reinforcing ribs.

In an exemplary embodiment of the present disclosure, the reinforcing ribs are distributed annularly along a circumferential direction of the central axis of the cylinder body.

In an exemplary embodiment of the present disclosure, the reinforcing ribs are uniformly distributed on the cylinder.

In an exemplary embodiment of the present disclosure, one through hole is provided between adjacent reinforcing ribs.

In an exemplary embodiment of the disclosure, the first mounting holes are annularly distributed on the mounting base plate.

In an exemplary embodiment of the disclosure, the first mounting hole is overlapped with a plurality of annular circle centers sleeved on the mounting base plate.

In an exemplary embodiment of the present disclosure, a plurality of the second mounting holes are equally spaced on the extension plate.

In an exemplary embodiment of the present disclosure, the mounting base plate has a shape and size matching a shape and size of one open end of the barrel, and the expansion plate inner ring has a shape and size matching a shape and size of the other open end of the barrel.

Because the conical shell component is generally high in axial test magnitude, the test magnitude cannot be achieved due to the large mass of the expansion table after the conical shell component is connected with the expansion table matched with the vibration table in a switching mode. The utility model provides a supporting extension platform of shaking table is compared to general type extension anchor clamps of mechanical environment test of awl shell component, by mounting plate, expansion board and barrel are constituteed, and set up a plurality of through-holes on the barrel, the weight of anchor clamps has been alleviateed, the anchor clamps quality is less and simple to operate, be favorable to the awl shell component to carry out high-order vibration test in the axial, and utilize general type extension anchor clamps and the radial test fixture combination of awl shell component to carry out the axial test of awl shell component, both reduced anchor clamps manufacturing cost, still improved test efficiency.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.

Fig. 1 is a schematic view of a mechanical environment test universal type extension fixture of a conical shell member according to an embodiment of the disclosure;

fig. 2 is an installation schematic diagram of a mechanical environment test universal extension fixture of a conical shell component according to an embodiment of the disclosure.

Description of reference numerals:

10. the device comprises a universal expansion clamp, 20, a radial test clamp, 30, a conical shell component, 40 and a vibration table;

11. expansion plate, 12, second mounting hole, 21, mounting bottom plate, 22, first mounting hole, 31, barrel, 32, through-hole, 41, strengthening rib.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be appreciated that if the device of the icon were turned upside down, the element described as "upper" would become the element "lower". When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.

The terms "a," "an," "the," "said," and "at least one" are used to indicate the presence of one or more elements/components/parts/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.; the terms "first," "second," and the like are used merely as labels, and are not limiting on the number of their objects.

The disclosed embodiment provides a general expansion clamp for a mechanical environment test of a conical shell component, as shown in fig. 1, the clamp includes a mounting base plate 21, an expansion plate 11 and a cylinder 31, the mounting base plate 21 is provided with a plurality of first mounting holes 22, and the mounting base plate 21 is used for being connected with a table top of a target vibration table through the first mounting holes 22; the expansion plate 11 is annular and provided with a plurality of second mounting holes 12, and the expansion plate 11 is used for being connected with a target radial test fixture during a test on the conical shell component sliding table through the second mounting holes 12; the barrel 31 is provided with a plurality of through holes 32, the barrel 31 includes two communicated open ends, the mounting base plate 21 is provided on one open end of the barrel 31, and the expansion plate 11 is provided on the other open end of the barrel 31.

Because the conical shell component is generally high in axial test magnitude, the test magnitude cannot be achieved due to the large mass of the expansion table after the conical shell component is connected with the expansion table matched with the vibration table in a switching mode. The utility model provides a supporting extension platform of shaking table is compared to general type extension anchor clamps of mechanical environment test of awl shell component, by mounting plate 21, expansion plate 11 and barrel 31 are constituteed, and set up a plurality of through-holes 32 on the barrel 31, the weight of anchor clamps has been alleviateed, the anchor clamps quality is less and simple to operate, be favorable to the awl shell component to carry out the vibration test of high magnitude at the axial, and utilize general type extension anchor clamps and the radial experimental anchor clamps combination of awl shell component to carry out the axial test of awl shell component, both reduced anchor clamps manufacturing cost, the efficiency of software testing has still been improved.

Specifically, the plurality of through holes 32 are annularly distributed along the circumferential direction of the central axis of the cylinder 31. That is, the plurality of through holes 32 are annularly arranged along one circle of the outer circumferential surface of the cylinder 31, and the plurality of through holes 32 may be annularly arranged on the outer circumferential surface of the cylinder 31 in one, two, three or more ways, which is not limited in this disclosure. Through the setting of through-hole 32, the weight of barrel 31 has been lightened on the one hand, and on the other hand through-hole 32 can be regarded as the handle hole, the installation operation when being convenient for experimental.

As shown in fig. 1, the shape of the through hole 32 may be an ellipse, and the major axis of the elliptical through hole 32 is parallel or substantially parallel to the central axis of the cylinder 31, so as to ensure that more through holes 32 are provided in the circumferential direction of the cylinder 31, while ensuring that the through holes 32 are sufficiently large. In addition, the through holes 32 may also be circular, rectangular, irregular, etc., which is not limited by the present disclosure. The size of the through hole 32 can be adjusted by those skilled in the art according to actual conditions, so that the barrel 31 has sufficient strength and rigidity and light weight, and is convenient to operate through the through hole 32.

As shown in fig. 1, a plurality of ribs 41 are provided on the outer peripheral surface of the cylindrical body 31, the ribs 41 are connected to the expansion plate 11, and the through-hole 32 is located between two adjacent ribs 41. Specifically, the reinforcing ribs 41 are provided on the cylinder 31 for reinforcing the connection strength and rigidity between the cylinder 31 and the expansion plate 11, and since the outer diameter of the expansion plate 11 is larger than the diameter of the cylinder 31, the expansion plate 11 protrudes from the outer circumferential surface of the cylinder 31, and the reinforcing ribs 41 are formed on two adjacent side surfaces of the cylinder 31 outside the expansion plate 11; the reinforcing ribs 41 are in right-angled triangles, and the inclined edges of the reinforcing ribs 41 are parallel to or coincident with the connecting line between the edge of the expansion plate 11 and the bottom of the cylinder 31, so that the whole clamp is in a circular truncated cone shape, and the structural strength and the rigidity of the clamp are improved. Of course, the reinforcing ribs 41 may have other shapes, such as a strip shape, etc., which is not limited by the present disclosure.

Further, the reinforcing ribs 41 are annularly distributed along the circumferential direction of the central axis of the cylinder 31, so that the connection strength between the cylinder 31 and the expansion plate 11 is further enhanced.

Further, the reinforcing ribs 41 are uniformly distributed on the cylinder 31, so that the connection strength and rigidity between the cylinder 31 and the expansion plate 11 are further enhanced, and the accuracy of a test result is improved. Of course, the reinforcing ribs 41 may also be non-uniformly distributed on the barrel 31, which is not limited by this disclosure.

As shown in fig. 1, a through hole 32 is provided between adjacent reinforcing ribs 41. The reinforcing ribs 41 and the through holes 32 are uniformly arranged on the cylinder body 31, and only one through hole 32 is arranged between the adjacent reinforcing ribs 41, so that the through hole 32 is ensured to be large enough, the weight of the cylinder body 31 is further reduced, and the installation operation through the through hole 32 is facilitated. In addition, two, three, or more through holes 32 may be provided between the adjacent reinforcing ribs 41; alternatively, a different number of through-holes 32 may be provided between adjacent reinforcing ribs 41; alternatively, at least one through-hole 32 is provided between some adjacent reinforcing ribs 41, and no through-hole 32 is provided between the remaining adjacent reinforcing ribs 41. The size of the through-holes 32 provided between the adjacent ribs 41 may be the same or different. Those skilled in the art can design as desired and the disclosure is not limited thereto.

As shown in fig. 1, the first mounting holes 22 are annularly distributed on the mounting base plate 21. Through the first mounting hole 22 that is a plurality of annular distributions that the cover was established on mounting plate 21 sets up, can improve the joint strength of anchor clamps and target vibration mesa, also can adapt to the target shaking table of multiple specification simultaneously. The size of the first mounting hole 22 can be designed according to the connecting hole of the target vibration table.

Further, the first mounting hole 22 is overlapped with a plurality of annular centers of circles sleeved on the mounting bottom plate 21.

As shown in fig. 1, the plurality of first mounting holes 22 are distributed on the mounting base plate 21 in a shape of a Chinese character 'mi', every eight first mounting holes 22 form a group of mounting holes distributed annularly, and thirty-two first mounting holes 22, that is, four groups of annular mounting holes are provided on the mounting base plate 21. One skilled in the art may also provide more first mounting holes 22 to form three, five, or more sets of annular mounting holes, which the present disclosure is not limited to.

As shown in fig. 1, a plurality of second mounting holes 12 are distributed on the expansion plate 11 at equal intervals so as to be connected with a target radial test fixture during the test on the conical shell component sliding table. Of course, the plurality of second mounting holes 12 may also be distributed on the expansion board 11 at unequal intervals, and those skilled in the art may adjust the second mounting holes according to actual situations, which is not limited by the present disclosure. The size of the second mounting hole 12 can be designed according to the connecting hole of the target radial test fixture.

Specifically, the shape and size of the mounting baseplate 21 match those of one open end of the cylinder 31, and the shape and size of the inner ring of the expansion plate 11 match those of the other open end of the cylinder 31. As shown in fig. 1, the cylinder 31 is a cylinder with two open ends, the mounting bottom plate 21 has the same size and shape as the opening at the bottom of the cylinder 31, and the bottom opening end can be just sealed after being arranged at the bottom of the cylinder 31; the expansion plate 11 is an annular flat plate, the diameter of the inner ring is the same as that of the cylinder 31, and the expansion plate can be just sleeved at the open end of the top of the cylinder 31.

Specifically, the fixture is formed by integral molding, that is, the mounting base plate 21, the expansion plate 11 and the cylinder 31 are connected by an integral molding process to form the fixture. In addition, the mounting base plate 21, the expansion plate 11, and the cylinder 31 may be combined by welding or other connection methods to form a jig.

Specifically, the clamp may be made of a metal material, such as iron, aluminum, or a metal alloy, which is not listed here, and it is sufficient to ensure that the manufactured clamp has sufficient strength and rigidity.

As shown in fig. 2, when the extended jig 10 for a dynamic environment test of a conical shell member is mounted, the mounting base plate 21 is connected to the top surface of the vibration table 10, the extended plate 11 is connected to the small end surface of the radial test jig 20, and the conical shell member 30 to be tested is mounted on the large end surface of the radial test jig 20.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. The utility model provides a mechanical environment test universal type extension anchor clamps of awl shell component which characterized in that includes:

2. The clamp of claim 1, wherein the plurality of through holes are annularly distributed along a circumferential direction of the central axis of the cylinder.

3. The clamp according to claim 1, wherein a plurality of reinforcing ribs are provided on the outer circumferential surface of the cylinder, the reinforcing ribs are connected with the expansion plate, and the through hole is located between two adjacent reinforcing ribs.

4. The clamp of claim 3, wherein the ribs are annularly distributed along a circumferential direction of the central axis of the cylinder.

5. The clamp of claim 4, wherein the reinforcing ribs are evenly distributed on the barrel.

6. The clip of claim 4 wherein one of said through holes is disposed between each adjacent pair of said ribs.

7. The clamp of claim 1, wherein the plurality of first mounting holes are annularly distributed on the mounting base plate.

8. The clamp of claim 7, wherein the first mounting hole is formed in the mounting base plate in a manner that centers of a plurality of circles sleeved on the mounting base plate coincide.

9. The clamp of claim 1, wherein the plurality of second mounting holes are equally spaced apart on the expansion plate.

10. The clamp of claim 1, wherein the mounting base plate is shaped and sized to match the shape and size of one open end of the barrel, and the expansion plate inner ring is shaped and sized to match the shape and size of the other open end of the barrel.