CN203519291U - Modal test stand - Google Patents
Modal test stand Download PDFInfo
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- CN203519291U CN203519291U CN201320444318.XU CN201320444318U CN203519291U CN 203519291 U CN203519291 U CN 203519291U CN 201320444318 U CN201320444318 U CN 201320444318U CN 203519291 U CN203519291 U CN 203519291U
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- modal test
- support bar
- supporting seat
- support
- supporting construction
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Abstract
The utility model relates to the technical field of modal test equipment, and discloses a modal test stand. The stand comprises a base and a supporting seat, wherein the base and the supporting seat are connected through an adjustable supporting structure; and the supporting seat is used for fixing a flexible support. The adjustable supporting structure comprises a supporting structure and an adjustment structure connected with the supporting structure; the supporting structure is connected with the base and the supporting seat, and the adjusting structure is used for adjusting the supporting height of the supporting structure. An installation problem of the flexible support when a sample piece carries out a modal test by adopting a flexible supporting mode can be solved through using the modal test stand, and the working efficiency of the modal test is improved.
Description
Technical field
The utility model relates to modal test device technique field, relates in particular to a kind of modal test support.
Background technology
Modal test claims again test modal analysis, is the vibration test for determining that the modal parameter of linear vibrating system carries out, and is a kind of effective method with test method identification engineering structure dynamics.
Automobile sample car, before reliability actual road test, need to carry out modal test.Modal test is the resonance harmony of identification vehicle structure dynamics, evaluation vehicle structure in a short time, for vehicle structure optimal design provides foundation.
During modal test, for test exemplar, need to adopt the mode of free support, mainly contain the installation forms such as flexible hanging and flexible support, the installation form of current flexible hanging has been widely used, and the instrument of its lifting is developed use already, all ripe.Form contrast with flexible hanging, flexible support is subject to the restriction of supporting tool, existing supporting tool is according to the test request of exemplar, conventionally be all independent making, different exemplars need mate different supporting tools simply to be supported, versatility is poor, and cannot realize highly adjusting, therefore uses relatively lessly.
The test bracket of the relevant flexible support of development and Design, to rationally utilizing efficiently modal test resource, improves modal test work efficiency and has very large meaning.
Utility model content
The utility model provides a kind of modal test support, the installation question of flexible support while adopting flexible support mode to carry out modal test to solve exemplar.
For this reason, the utility model provides following technical scheme:
A modal test support, comprising: base and supporting seat, be connected by adjustable supporting construction between described base and supporting seat; Described supporting seat supports for fixing flexible, and described adjustable supporting construction comprises: supporting construction and the adjustment structure being connected with described supporting construction; Described supporting construction is connected with supporting seat with described base respectively, and described adjustment structure is for regulating the bearing height of described supporting construction.
Preferably, described supporting construction comprises two adjustable support bars, and the lower end of described support bar is connected with described base, and the upper end of described support bar is connected with described supporting seat; Described adjustment structure comprises adjuster bar, and the two ends of described adjuster bar are connected with one of them support bar respectively.
Preferably, at the two ends of the upper surface of described base, be respectively arranged with joint pin, for connecting the lower end of described support bar; Two ends at the lower surface of described supporting seat are respectively arranged with lower joint pin, for connecting the upper end of described support bar.
Preferably, the lower end of described upper joint pin and described support bar is by being spirally connected or riveting method is connected.
Preferably, the upper end of described lower joint pin and described support bar is by being spirally connected or riveting method is connected.
Preferably, the structure of described two support bars is identical, is two-part structure, and two sections of centres are fixedly connected with by bolt or rivet.
Preferably, in two sections of middle parts of a support bar, be provided with locking fixture, in two sections of middle parts of another support bar, be provided with nut; Described adjuster bar is bolt, and the screw rod of described bolt is through described locking fixture and described nut, and by one end of the fixing described screw rod of described locking fixture, by described nut, regulates the distance that is connected between described screw rod and two support bars.
Preferably, described locking fixture is fixedly connected with described support bar with described nut.
Preferably, described locking fixture and described nut-welding are on described support bar.
The modal test support that the utility model provides, is connected with square chest by base, by supporting seat, is connected with air spring.Bearing height can regulate, by adjustable supporting construction, the bearing height of test exemplar being carried out to height regulates, be convenient to test the selection of the test attitude adjustment of exemplar, the installation of test apparatus and test measuring point, can greatly improve the work efficiency of modal test.This modal test support simple installation, highly versatile, flexible and convenient to use, and be convenient to processing.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to the accompanying drawing of required use in embodiment be briefly described below, apparently, the accompanying drawing the following describes is only some embodiment that record in the utility model, for those of ordinary skills, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the utility model modal test support;
Fig. 2 is the structural representation of supporting seat in the utility model modal test support.
Drawing reference numeral:
1 supporting seat; 2 support bars; 3 adjuster bars; 4 locking fixtures; 5 bases; 6 nuts;
7 times joint pins; Joint pin on 8; 9 air spring mounting holes; 10 air spring air-filled pores.
Embodiment
In order to make those skilled in the art person understand better the scheme of the utility model embodiment, below in conjunction with drawings and embodiments, the utility model embodiment is described in further detail.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
In the utility model, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
As shown in Figure 1, be the structural representation of the utility model modal test support.
In this embodiment, described modal test support comprises: base 5 and supporting seat 1, be connected by adjustable supporting construction between described base 5 and supporting seat 1.
When practical application, base 5 is placed on square chest, described square chest is requisite aid while carrying out modal test, its Main Function is fixing to bracket base 5, guarantees that it is solid and reliable, and it cannot move after fixedly completing.By supporting seat 1 with existing flexible support such as air spring is connected, thereby separate the installation question of flexible support.And by adjustable supporting construction, supporting seat 1 is connected with base 5, thereby can regulates easily the height of the test exemplar being connected with flexible support, improve the work efficiency of modal test.
Above-mentioned adjustable supporting construction can be comprised of two parts, is respectively: supporting construction and the adjustment structure being connected with described supporting construction.Wherein, described supporting construction is connected with supporting seat 1 with base 5 respectively, and described adjustment structure is for regulating the bearing height of described supporting construction.
Particularly, as shown in Figure 1, described supporting construction can be comprised of two adjustable support bars 2, and the lower end of support bar 2 is connected with base 5, and the upper end of support bar 2 is connected with supporting seat 1.
Correspondingly, described adjustment structure comprises adjuster bar 3, and the two ends of adjuster bar 3 are connected with one of them support bar respectively.
For the ease of connecting, can joint pin 8 be set respectively at the two ends of the upper surface of base 5, to connect the lower end of support bar 2.Equally, at the two ends of the lower surface of supporting seat 1, lower joint pin 7 is set respectively, to connect the upper end of support bar 2.
It should be noted that, in actual applications, also can design independent joint pin, but the two ends up and down of support bar are directly connected with the two ends of base 5 and supporting seat 1 respectively.
It should be noted that in addition, described upper joint pin 8 can be one machine-shaping structure with base 5, can be also to process respectively, then both is welded together.
Equally, lower joint pin 7 can be one machine-shaping structure with supporting seat 1, can be also to process respectively, then both is welded together.
In concrete application, the lower end of upper joint pin 8 and support bar 2 can be by being spirally connected or the mode such as riveted joint is connected.Equally, the upper end of lower joint pin 7 and support bar 2 also can be by being spirally connected or the mode such as riveted joint is connected.
For the ease of the height of supporting seat 1 is regulated, in the utility model embodiment, two support bars can adopt identical structure, as shown in Figure 1, are two-part structure, and two sections of centres can be fixedly connected with by bolt or rivet.
Before mention, adjuster bar 3, for regulating the bearing height of described supporting construction, regulates the height of supporting seat 1.The two ends of adjuster bar 3 are connected with one of them support bar respectively.In this embodiment, adjuster bar 3 adopts bolt arrangements, can be standard-sized bolt, can be also with the utility model in the bolt of the suitable specific dimensions of supporting construction.And the screw rod of this bolt can all be threaded, also can only in the one end away from head, be threaded, as shown in Figure 1.
For convenient, install and regulate, can connection fixture be set respectively in two sections of middle parts of each support bar, as shown in Figure 1, in two sections of middle parts of a support bar, locking fixture 4 being set, in two sections of middle parts of another support bar, nut 6 being set.
When mounted, the screw rod of described bolt is passed to locking fixture 4 and nut 6.Wherein, locking fixture 4 plays the effect of standing screw one end, and nut 6 plays the effect that is connected distance regulating between described screw rod and two support bars.
It should be noted that, can be to be fixedly connected with between above-mentioned locking fixture 4 and nut 6 and described support bar 2, such as, locking fixture 4 and nut 6 directly can be welded on support bar.Certainly, between locking fixture 4 and nut 6 and described support bar 2, can be also to removably connect, such as, on locking fixture 4 and nut 6 sidewalls, process threaded hole, by bolt, locking fixture 4 and nut 6 are fixed on support bar 2.
Above-mentioned locking fixture 4 can be bearing arrangement.
It should be noted that, above-mentioned supporting seat 1 can be square structure, as shown in Figure 2, at the upper surface of supporting seat 1, air spring mounting hole 9 and air spring air-filled pore 10 is set.
When carrying out modal test, base 5 is placed on square chest, air spring is fixed on supporting seat 1, and test exemplar is placed on air spring.The distance that the head of rotating bolt 3 is connected with two support bars 2 with adjusting screw(rod), thereby the height of adjusting supporting seat 1.The height of supporting seat 1 is adjusted to after correct position, by locking fixture 4, one end of bolt 3 is fixed, can start to test.
It should be noted that, the material of above-mentioned support is that rigidity is larger
Visible, utilize modal test support of the present utility model, can realize easily the installation of flexible support (as air spring) is fixed.And, by adjustable supporting construction, the bearing height of test exemplar is carried out to height and regulate, be convenient to test the selection of the test attitude adjustment of exemplar, the installation of test apparatus and test measuring point, can greatly improve the work efficiency of modal test.
This modal test support simple installation, highly versatile, flexible and convenient to use, and be convenient to processing.Experiment shows, this structural strength can be more than load-bearing 2000kg.
Above the utility model embodiment is described in detail, has applied embodiment herein the utility model is set forth, the explanation of above embodiment is just for helping to understand method and apparatus of the present utility model; , for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model meanwhile.
Claims (9)
1. a modal test support, is characterized in that, comprising: base and supporting seat, be connected by adjustable supporting construction between described base and supporting seat; Described supporting seat supports for fixing flexible, and described adjustable supporting construction comprises: supporting construction and the adjustment structure being connected with described supporting construction; Described supporting construction is connected with supporting seat with described base respectively, and described adjustment structure is for regulating the bearing height of described supporting construction.
2. modal test support according to claim 1, is characterized in that,
Described supporting construction comprises two adjustable support bars, and the lower end of described support bar is connected with described base, and the upper end of described support bar is connected with described supporting seat; Described adjustment structure comprises adjuster bar, and the two ends of described adjuster bar are connected with one of them support bar respectively.
3. modal test support according to claim 1, is characterized in that, is respectively arranged with joint pin, for connecting the lower end of described support bar at the two ends of the upper surface of described base; Two ends at the lower surface of described supporting seat are respectively arranged with lower joint pin, for connecting the upper end of described support bar.
4. modal test support according to claim 3, is characterized in that, the lower end of described upper joint pin and described support bar is by being spirally connected or riveting method is connected.
5. modal test support according to claim 3, is characterized in that, the upper end of described lower joint pin and described support bar is by being spirally connected or riveting method is connected.
6. modal test support according to claim 2, is characterized in that, the structure of described two support bars is identical, is two-part structure, and two sections of centres are fixedly connected with by bolt or rivet.
7. modal test support according to claim 6, is characterized in that, in two sections of middle parts of a support bar, is provided with locking fixture, in two sections of middle parts of another support bar, is provided with nut; Described adjuster bar is bolt, and the screw rod of described bolt is through described locking fixture and described nut, and by one end of the fixing described screw rod of described locking fixture, by described nut, regulates the distance that is connected between described screw rod and two support bars.
8. modal test support according to claim 7, is characterized in that, described locking fixture is fixedly connected with described support bar with described nut.
9. modal test support according to claim 8, is characterized in that, described locking fixture and described nut-welding are on described support bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320444318.XU CN203519291U (en) | 2013-07-24 | 2013-07-24 | Modal test stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320444318.XU CN203519291U (en) | 2013-07-24 | 2013-07-24 | Modal test stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203519291U true CN203519291U (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320444318.XU Expired - Fee Related CN203519291U (en) | 2013-07-24 | 2013-07-24 | Modal test stand |
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| Country | Link |
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| CN (1) | CN203519291U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928552A (en) * | 2016-04-15 | 2016-09-07 | 北京交通大学 | Loading end angle adjustable limiting mechanism of load platform |
| CN112461476A (en) * | 2020-12-24 | 2021-03-09 | 海南师范大学 | Support structure for vibration detection |
| CN113697127A (en) * | 2021-08-10 | 2021-11-26 | 中国航天空气动力技术研究院 | Modal test supporting device and using method |
-
2013
- 2013-07-24 CN CN201320444318.XU patent/CN203519291U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928552A (en) * | 2016-04-15 | 2016-09-07 | 北京交通大学 | Loading end angle adjustable limiting mechanism of load platform |
| CN112461476A (en) * | 2020-12-24 | 2021-03-09 | 海南师范大学 | Support structure for vibration detection |
| CN113697127A (en) * | 2021-08-10 | 2021-11-26 | 中国航天空气动力技术研究院 | Modal test supporting device and using method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20180724 |
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| CF01 | Termination of patent right due to non-payment of annual fee |