CN220893734U - Swinging vibration composite test stand - Google Patents
Swinging vibration composite test stand Download PDFInfo
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- CN220893734U CN220893734U CN202322627818.3U CN202322627818U CN220893734U CN 220893734 U CN220893734 U CN 220893734U CN 202322627818 U CN202322627818 U CN 202322627818U CN 220893734 U CN220893734 U CN 220893734U
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- 238000012360 testing method Methods 0.000 title claims abstract description 36
- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 230000005284 excitation Effects 0.000 claims abstract description 22
- 230000033001 locomotion Effects 0.000 claims abstract description 14
- 230000000712 assembly Effects 0.000 claims description 12
- 238000000429 assembly Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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Abstract
The utility model provides a swinging and vibrating composite test stand, which comprises a base, an excitation assembly and a vibrating table top, wherein the excitation assembly is rotationally connected with the vibrating table top and the base and applies vibrating force in the vertical direction to the vibrating table top; a righting assembly is arranged between the base and the vibrating table top and comprises a righting support and a swing arm, wherein the righting support is arranged on the base, one end of the swing arm is provided with a first decoupling rotating mechanism which is connected with the righting support, and the other end of the swing arm is provided with a second decoupling rotating mechanism which is connected with the vibrating table top; the first decoupling rotating mechanism comprises a support and a first rotating shaft erected on the support, the axis of the first rotating shaft is parallel to the horizontal plane, the end part of the swing arm is rotationally connected with the first rotating shaft, the swing arm can do vertical rotating motion along with the vibration table surface around the first decoupling rotating mechanism, the support is provided with a horizontal deflection compensation piece for enabling the swing arm to do horizontal rotating, and the vibration table surface does horizontal rotating along with the swing arm while doing vertical reciprocating vibration.
Description
Technical Field
The utility model relates to the technical field of vibration test tables, in particular to a swinging vibration composite test table.
Background
The vibration test is a typical test of environmental mechanics test and is widely used for mechanical simulation verification and reliability verification of automobile parts, aerospace products and the like. The swing test is mainly used for simulating the environment of equipment such as ships, seaplanes and the like so as to perform swing and inclination tests on various mechanical, electrical and electronic products and check the specified severity level of the products; or for testing the adaptability of the main components of the automobile to tilting and rocking environments; or performing a sway simulation test on a control rod in a nuclear reactor to verify reliability and stability thereof.
In general, a significant portion of test pieces are in complex environments, requiring simultaneous vibration and sway, so as to more truly simulate the actual mechanical environment of the product.
Disclosure of Invention
The utility model aims to provide a swinging and vibrating composite test stand so as to solve the problems.
The technical scheme adopted by the utility model is as follows:
The vibration excitation assembly comprises a hydraulic cylinder, the upper end of the hydraulic cylinder is rotationally connected with the vibration table top, the lower end of the hydraulic cylinder is rotationally connected with the base, and the vibration excitation assembly can apply vibration force in the vertical direction to the vibration table top;
A righting assembly is arranged between the base and the vibrating table top and comprises a righting support and a swing arm, the righting support is arranged on the base, one end of the swing arm is provided with a first decoupling rotating mechanism and is connected with the righting support, and the other end of the swing arm is provided with a second decoupling rotating mechanism and is connected with the vibrating table top;
The first decoupling rotating mechanism is consistent with the second decoupling rotating mechanism in structure, the first decoupling rotating mechanism comprises a support and a first rotating shaft erected on the support, the axis of the first rotating shaft is parallel to the horizontal plane, the end part of the swing arm is rotationally connected with the first rotating shaft, the swing arm can do vertical rotation motion of the swing arm along with the vibration table surface around the first decoupling rotating mechanism, the support is further provided with a horizontal deflection compensating piece, the horizontal deflection compensating piece is used for enabling the swing arm to rotate in the horizontal direction, and the vibration table surface does horizontal rotation along with the swing arm when doing vertical reciprocating vibration.
As a further improved technical scheme of the utility model, bearings are respectively sleeved at two ends of the first rotating shaft, and the bearings are arranged on the support.
As a further improved technical scheme of the utility model, the horizontal deflection compensation piece is an elastic ring, and the elastic ring is arranged between the outer circular surface of the bearing and the bracket.
As a further improved technical scheme of the utility model, a check ring is arranged on one surface of the bearing, which is close to the end part of the first rotating shaft.
As a further improved technical scheme of the utility model, the centralizing support is perpendicular to the base and comprises a vertical plate and two side plates perpendicular to the vertical plate, the side plates are triangular, and the axis of the first rotating shaft is parallel to the plane where the vertical plate is located.
As a further improved technical scheme of the utility model, the vibrating table top comprises a table top main body and a connecting part extending outwards from the table top main body, wherein the connecting part is used for connecting a second decoupling rotating mechanism, a yielding part is formed between the connecting part and the table top main body, and the yielding part is used for enabling the vibrating table top to avoid the righting component in the moving process.
As a further improved technical scheme of the utility model, two ends of the hydraulic cylinder are respectively connected with the base and the vibrating table top in a spherical hinge mode.
As a further improved technical scheme of the utility model, two ends of the hydraulic cylinder are provided with rotating mechanisms, each rotating mechanism comprises a first rotating support, a second rotating shaft, a second rotating support and a third rotating shaft, the first rotating support is fixed on the base/the vibrating table top, the second rotating shaft is erected on the first rotating support, the second rotating support is fixed on the hydraulic cylinder, the third rotating shaft is erected on the second rotating support, and the second rotating shaft and the third rotating shaft are of an integrated cross structure.
As a further improved technical scheme of the utility model, at least two righting assemblies are arranged.
As a further improved technical scheme of the utility model, the number of the excitation components is 4 and the excitation components are uniformly distributed in the circumferential direction, and the number of the righting components is 4 and the excitation components are uniformly distributed in the circumferential direction.
The utility model has the beneficial effects that:
Through the structure, the vibration exciting assembly is adopted to apply vibration force in the vertical direction to the vibration table surface, and the vibration table surface is driven to rotate in the horizontal direction while rotating along with the vertical vibration of the vibration table surface through the setting of the righting assembly, so that the vibration and swing composite test of a test piece can be realized, and the test precision and reliability are excellent.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a rocking vibration composite test stand;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a schematic view of a portion of the structure of a centralizing assembly;
FIG. 4 is a cross-sectional view of a decoupling rotation mechanism;
fig. 5 is a top view of the rocking vibration composite test stand.
Wherein: 100-base, 210-hydraulic cylinder, 220-rotating mechanism, 221-first rotating support, 222-second rotating shaft, 223-second rotating support, 224-third rotating shaft, 300-vibrating table top, 310-table top main body, 320-connecting part, 330-abdicating part, 400-righting component, 410-righting support, 411-vertical plate, 412-side plate, 420-swing arm, 430-first decoupling rotating mechanism, 431-bracket, 432-first rotating shaft, 433-bearing, 434-elastic ring, 435-retainer ring, 440-second decoupling rotating mechanism.
Detailed Description
The present utility model will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the utility model and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the utility model.
If the utility model is expressed in terms of orientation (e.g., up, down, left, right, front, back, outer, inner, etc.), then the orientation in question should be defined, e.g., "to clearly express the position and orientation described in this utility model, with reference to the operator of the instrument, the end near the operator is the proximal end, and the end remote from the operator is the distal end. "or" with reference to the paper surface "or the like. Of course, if the positional relationship between the two is defined by cross-referencing at the time of the subsequent description, it may not be defined here.
The utility model provides a compound test bench of vibration sways, is shown as fig. 1-5, includes base 100, excitation subassembly and the vibration mesa 300 that the excitation subassembly drive that sets up in proper order from bottom to top, the excitation subassembly includes pneumatic cylinder 210, the both ends of pneumatic cylinder 210 are connected with base 100, vibration mesa 300 rotation respectively, the vibration subassembly can apply the vibration power of vertical axis direction to vibration mesa 300.
A righting assembly 400 is arranged between the base 100 and the vibration table 300, the righting assembly 400 comprises a righting support 410 and a swing arm 420, the righting support 410 is arranged on the base 100, one end of the swing arm 420 is provided with a first decoupling rotary mechanism 430 which is connected with the righting support 410, and the other end of the swing arm 420 is provided with a second decoupling rotary mechanism 440 which is connected with the vibration table 300.
The first decoupling rotation mechanism 430 is consistent with the second decoupling rotation mechanism 440 in structure, the first decoupling rotation mechanism 430 comprises a bracket 431 and a first rotating shaft 432 erected on the bracket 431, the axis of the first rotating shaft 432 is parallel to the horizontal plane, the end part of the swing arm 420 is rotationally connected with the first rotating shaft 432, the swing arm 420 can do a rotation motion perpendicular to the horizontal plane along with the vibration table 300 around the first decoupling rotation mechanism 430, the bracket 431 is also provided with a horizontal deflection compensation member, the horizontal deflection compensation member is used for enabling the swing arm 420 to do a rotation in the horizontal direction, and the vibration table 300 does a reciprocating vibration in the vertical direction and simultaneously does a rotation in the horizontal direction along with the swing arm 420. The first decoupling rotation mechanism 430 and the second decoupling rotation mechanism 440 are used to limit the degree of freedom of movement of the oscillating table 300 in the horizontal direction.
As shown in fig. 3, bearings 433 are respectively sleeved at two ends of the first rotating shaft 432, the bearings 433 are disposed on the bracket 431, and the first rotating shaft 432 is mounted on the bracket 431 through the bearings 433 and can rotate on the bracket 431, so that the swing arm 420 rotates.
As shown in fig. 4, the horizontal deflection compensator is an elastic ring 434, the elastic ring 434 is disposed between an outer circumferential surface of the bearing 433 and the bracket 431, when the swing arm 420 rotates along with the vibration table 300 perpendicular to a horizontal plane, the vibration table 300 is driven by the swing arm 420 to generate a movement trend of horizontal rotation, the swing arm 420 applies a force to the bearing 433, the bearing 433 is forced to press the elastic ring 434, the elastic ring 434 is deformed so that the swing arm 420 can deflect in a horizontal direction, and then the horizontal rotation of the vibration table 300 is realized, and the elastic ring 434 enables the centering assembly 400 to have a certain flexibility while limiting the movement freedom of the vibration table 300, so that the expansion and contraction amount of the centering assembly 400 in the working process of the test bench is compensated.
A retainer 435 is disposed on one surface of the bearing 433 near the end of the first rotating shaft 432, and the retainer 435 is used for shielding, dust-proof, protecting and limiting the bearing 433.
The righting support 410 is perpendicular to the base 100, the righting support 410 includes a vertical plate 411 and two side plates 412 perpendicular to the vertical plate 411, the side plates 412 are triangular, the axis of the first rotating shaft 432 is parallel to the plane where the vertical plate 411 is located, one end of the swing arm 420 is disposed on the vertical plate 411 through the first decoupling rotation mechanism 430, and the other end of the swing arm 420 is disposed below the vibration table 300 through the second decoupling rotation mechanism 440, so that the swing arm 420 rotates around the first decoupling rotation mechanism 430 disposed on the vertical plate 411.
As shown in fig. 5, the vibration table 300 includes a table main body 310 and a connection portion 320 extending outward from the table main body 310, the connection portion 320 is configured to connect to a second decoupling rotation mechanism 440, a yielding portion 330 is formed between the connection portion 320 and the table main body 310, the yielding portion 330 is configured to enable the vibration table 300 to avoid the centering component 400 during a movement process, when the vibration table 300 moves downward along with the excitation component, the swing arm 420 also rotates downward, and due to the yielding portion 330, collision between the swing arm 420 and the vibration table 300 during the movement process can be avoided.
As an embodiment of the present utility model, two ends of the hydraulic cylinder 210 are respectively connected with the base 100 and the vibration table 300 in a form of a ball hinge, and the ball hinge is used for decoupling the movement of the hydraulic cylinder 210.
As another embodiment of the present utility model, as shown in fig. 2, two ends of the hydraulic cylinder 210 are respectively connected with the base 100 and the vibration table 300 by a rotation mechanism 220, the rotation mechanism 220 includes a first rotation support 221, a second rotation shaft 222, a second rotation support 223, and a third rotation shaft 224, the first rotation support 221 is fixed on the base 100/the vibration table 300, the second rotation shaft 222 is erected on the first rotation support 221, the second rotation support 223 is fixed on the hydraulic cylinder 210, the third rotation shaft 224 is erected on the second rotation support 223, and the second rotation shaft 222 and the third rotation shaft 224 are in an integrated cross structure. The rotating mechanism 220 meets the high thrust requirement of part of tests, and meanwhile, the problem that the spherical surface and the mounting surface of a conventional spherical hinge are easy to wear can be avoided, and the transmission precision is ensured.
As an embodiment of the present utility model, the number of the excitation assemblies corresponds to the number of the righting assemblies 400 one by one, and each of the excitation assemblies moves to have one righting assembly 400 perform the degree of freedom limiting and the swinging motion guiding.
As an embodiment of the present utility model, there are at least two righting assemblies 400, and there are a plurality of excitation assemblies.
As an embodiment of the utility model, the number of the excitation assemblies is 4 and the excitation assemblies are uniformly distributed in the circumferential direction, the number of the righting assemblies 4004 is uniformly distributed in the circumferential direction, and the driving force of the excitation assemblies of the vibration table 300 is uniform and the traction force of the righting assemblies 400 is uniform. The second decoupling rotation mechanisms 440 of the centering mechanism are respectively disposed below the connection portions 320 one by one, and the swing arms 420 are disposed on the abdication portions 330, so that the movements of the swing arms 420 and the vibration table 300 are smooth and do not interfere with each other. The exciting assembly is disposed beside the second decoupling rotation mechanism 440, so that the movements of the swing arm 420 and the exciting assembly are smooth and do not interfere with each other.
According to the swinging vibration composite test stand provided by the utility model, the vibration exciting assembly is adopted to apply the vibration force in the vertical direction to the vibration table top 300, and the centering assembly 400 is arranged to rotate in the vertical direction along with the vertical vibration of the vibration table top 300 and simultaneously drive the vibration table top 300 to rotate in the horizontal direction, so that the vibration and swinging composite test of a test piece can be realized, and the test precision and reliability are excellent.
It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.
The above list of detailed descriptions is only specific to practical embodiments of the present utility model, and they are not intended to limit the scope of the present utility model, and all equivalent embodiments or modifications that do not depart from the spirit of the present utility model should be included in the scope of the present utility model.
Claims (10)
1. The utility model provides a compound test bench of vibration sways which characterized in that:
The vibration table comprises a base (100), a vibration excitation assembly and a vibration table surface (300) driven by the vibration excitation assembly, wherein the vibration excitation assembly comprises a hydraulic cylinder (210), the upper end of the hydraulic cylinder (210) is rotationally connected with the vibration table surface (300), the lower end of the hydraulic cylinder (210) is rotationally connected with the base (100), and the vibration excitation assembly can apply vibration force in the vertical direction to the vibration table surface (300);
A centralizing assembly (400) is arranged between the base (100) and the vibrating table top (300), the centralizing assembly (400) comprises a centralizing support (410) and a swing arm (420), the centralizing support (410) is arranged on the base (100), one end of the swing arm (420) is provided with a first decoupling rotating mechanism (430) which is connected with the centralizing support (410), and the other end of the swing arm (420) is provided with a second decoupling rotating mechanism (440) which is connected with the vibrating table top (300);
the structure of the first decoupling rotating mechanism (430) is consistent with that of the second decoupling rotating mechanism (440), the first decoupling rotating mechanism (430) comprises a bracket (431) and a first rotating shaft (432) erected on the bracket (431), the axis of the first rotating shaft (432) is parallel to the horizontal plane, the end part of the swing arm (420) is rotationally connected with the first rotating shaft (432), the swing arm (420) can do vertical rotation motion around the first decoupling rotating mechanism (430) along with the vibration table top (300), the bracket (431) is further provided with a horizontal deflection compensator, the horizontal deflection compensator is used for enabling the swing arm (420) to rotate in the horizontal direction, and the vibration table top (300) can do horizontal rotation along with the swing arm (420) while doing vertical reciprocating vibration.
2. The rocking vibration composite test stand of claim 1, wherein:
bearings (433) are respectively sleeved at two ends of the first rotating shaft (432), and the bearings (433) are arranged on the bracket (431).
3. The rocking vibration composite test stand of claim 2, wherein:
The horizontal deflection compensator is an elastic ring (434), and the elastic ring (434) is arranged between the outer circular surface of the bearing (433) and the bracket (431).
4. The rocking vibration composite test stand of claim 2, wherein:
A retainer ring (435) is arranged on one surface of the bearing (433) close to the end part of the first rotating shaft (432).
5. The rocking vibration composite test stand of claim 1, wherein:
The centering support (410) is perpendicular to the base (100), the centering support (410) comprises a vertical plate (411) and two side plates (412) perpendicular to the vertical plate (411), the side plates (412) are triangular, and the axis of the first rotating shaft (432) is parallel to the plane where the vertical plate (411) is located.
6. The rocking vibration composite test stand of claim 1, wherein:
The vibration table top (300) comprises a table top main body (310) and a connecting portion (320) extending outwards from the table top main body (310), the connecting portion (320) is used for being connected with a second decoupling rotation mechanism (440), a yielding portion (330) is formed between the connecting portion (320) and the table top main body (310), and the yielding portion (330) is used for enabling the vibration table top (300) to avoid the righting assembly (400) in the movement process.
7. The rocking vibration composite test stand of claim 1, wherein:
The two ends of the hydraulic cylinder (210) are respectively connected with the base (100) and the vibrating table top (300) in a spherical hinge mode.
8. The rocking vibration composite test stand of claim 1, wherein:
The hydraulic cylinder (210) is characterized in that rotating mechanisms (220) are arranged at two ends of the hydraulic cylinder (210), each rotating mechanism (220) comprises a first rotating support (221), a second rotating shaft (222), a second rotating support (223) and a third rotating shaft (224), each first rotating support (221) is fixed on the base (100)/the vibrating table top (300), each second rotating shaft (222) is erected on each first rotating support (221), each second rotating support (223) is fixed on the hydraulic cylinder (210), each third rotating shaft (224) is erected on each second rotating support (223), and each second rotating shaft (222) and each third rotating shaft (224) are of an integrated cross structure.
9. The rocking vibration composite test stand of claim 1, wherein:
At least two centralizing assemblies (400) are arranged.
10. The rocking vibration composite test stand of claim 9, wherein:
the excitation components are 4 and circumferentially distributed, and the righting components (400) are 4 and circumferentially distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322627818.3U CN220893734U (en) | 2023-09-26 | 2023-09-26 | Swinging vibration composite test stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322627818.3U CN220893734U (en) | 2023-09-26 | 2023-09-26 | Swinging vibration composite test stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220893734U true CN220893734U (en) | 2024-05-03 |
Family
ID=90873934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322627818.3U Active CN220893734U (en) | 2023-09-26 | 2023-09-26 | Swinging vibration composite test stand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220893734U (en) |
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2023
- 2023-09-26 CN CN202322627818.3U patent/CN220893734U/en active Active
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