CN208350315U - A kind of multi-axes vibration test platform loading device - Google Patents
A kind of multi-axes vibration test platform loading device Download PDFInfo
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- CN208350315U CN208350315U CN201820669333.7U CN201820669333U CN208350315U CN 208350315 U CN208350315 U CN 208350315U CN 201820669333 U CN201820669333 U CN 201820669333U CN 208350315 U CN208350315 U CN 208350315U
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Abstract
本实用新型提供一种多轴振动试验台加载装置，本实用新型涉及振动试验技术领域。包括支架、定滑轮、受力杆、柔性绳和配重块；支架两侧为“A字形”结构的钢管，上梁两端与“A字形”结构顶部固定，中梁上设有三个定滑轮，上梁和横撑上设有套筒；上梁的两个套筒分别与压力杆一和扭转杆一间隙配合并通过螺栓固定，横撑的三个套筒分别与压力杆二、弯曲杆和扭转杆二间隙配合并通过螺栓固定；各种受力杆一端连接套筒另一端设有滑轮；试件通过夹具固定在振动台面上，柔性绳一端固定在试件端部的小孔内，另一端绕过滑轮吊挂在配重块上，通过柔性绳分别把配重块的重力转换为试件受压、受拉、受弯和受扭的力；用于多轴同步振动试验。
The utility model provides a loading device for a multi-axis vibration test bench, which relates to the technical field of vibration tests. Including bracket, fixed pulley, force rod, flexible rope and counterweight; the two sides of the bracket are steel pipes with "A-shaped" structure, the two ends of the upper beam are fixed to the top of the "A-shaped" structure, and there are three fixed pulleys on the middle beam , the upper beam and the cross brace are provided with sleeves; the two sleeves of the upper beam are respectively clearance-fitted with the pressure rod 1 and the torsion rod 1 and fixed by bolts, and the three sleeves of the transverse brace are respectively connected with the pressure rod 2 and the bending rod Fitted with the two torsion rods and fixed by bolts; one end of each force-bearing rod is connected to the sleeve and the other end is provided with a pulley; the test piece is fixed on the vibration table by the clamp, and one end of the flexible rope is fixed in the small hole at the end of the test piece. The other end is hung on the counterweight block around the pulley, and the gravity of the counterweight block is converted into the force of compression, tension, bending and torsion of the specimen through flexible ropes; it is used for multi-axis synchronous vibration test.
Description
Technical field
The utility model relates to vibration test technical fields.
Background technique
As hot-short constantly raises speed, the running environment of vehicle is more and more severe, and the vibration between wheel track becomes
Must be stronger, the multiaxis Random Vibration Load for being subject to vehicle hanging part structure sharply increases, and is easy ignored vibration in the past
Dynamic fatigue problem increasingly shows, therefore vehicle hanging part structure multiaxis random vibration fatigue problem is more and more widely weighed
Depending on.For the multiaxis random vibration fatigue life of more accurate and efficient prediction vehicle hanging part structure, vehicle hanging is carried out
The research of part structure multiaxis random vibration fatigue has great importance.This will guarantee the safe and reliable fortune of vehicle hanging part structure
Row, reduces the generation of accident, while can also be improved the design level of vehicle hanging part structure, prolonging the service life, enhances
China's hot-short not only has far-reaching theory significance in the competitiveness of international market, but also applies valence with great
Value and economic benefit.
Existing multi-axes vibration test platform be using X, the actuator in tri- directions Y, Z to one three-dimensional of vibration table with
Machine vibration excitation, vibration table upper fixture clamping test pieces integrally do polyaxial random vibration, but actual vehicle hanging part is not
It is subjected only to the multiaxis random vibration as caused by guideway irregularity, and the interaction for still suffering from self weight and other structures cooperation is made
With reciprocation includes tension, compression, by combination curved, by the either these types of power of torsion, and stress is complex, can not pass through
Testing stand is loaded directly into.A kind of flexible strand loading device for multi-axes vibration test platform provided by the utility model, in bracket
On arrange fixed pulley, flexible strand and various force rods.Fixed pulley lengthwise position is adjustable, force rod not only lengthwise position it is adjustable and
And length is also adjustable, is cooperated using flexible strand and fixed pulley, arbitrarily changes the direction of power but does not change the size of power, and
The multiaxis random vibration of shake table is not influenced；So that multi-axes vibration test platform can not only load multiaxis random vibration but also can be with
Tension and compression are loaded, the complex loads such as bending more really simulate the true stress condition of components, and equipment is simple, facilitates peace
Dress, facilitates adjusting, facilitates control, facilitate load.
Utility model content
The purpose of the utility model is to provide a kind of multi-axes vibration test platform loading device, solves to its efficiency fixture and hanging down
To the problem of three directions of vertical and horizontal arbitrarily adjust.
The mesh of the utility model is achieved through the following technical solutions:
A kind of multi-axes vibration test platform loading device, including test-bed body and vibration table, three directions of vibration table
It is respectively equipped with actuator X, actuator Y and actuator Z, three actuator are fixed with test-bed body, and test specimen passes through fixture and vibration
Dynamic table top is fixed, and bracket two sides are the steel pipe of " A font " structure, and upper beam both ends are fixed with " A font " structural top, and the one of upper beam
Side is set there are two the hinge with sleeve, is crossed upper beam drop wire and is equipped with central sill, and central sill is equipped with fixed pulley one, fixed pulley two and fixed sliding
Wheel three, bracket are set in the stull of test-bed body side there are three the hinge with sleeve；Two sleeves of upper beam respectively with pressure
One end clearance fit of power bar one and torque rod one is simultaneously bolted, and the other end is equipped with pulley；It is arranged in three of stull
Sleeve respectively with one end clearance fit of press rods two, bent stick and torque rod two and be bolted, press rods two, bending
The upper surface of two other end of bar and torque rod is equipped with pulley, and flexible strand one end is fixed in the aperture of test piece end, the other end around
It crosses fixed pulley one and connects clump weight, flexible strand stress direction is overlapped with test specimen center line.
The flexible strand passes through the aperture of test piece end, and one end connects around the pulley and fixed pulley one of press rods one end
Clump weight, the other end connect clump weight, resultant force of the flexible strand at test specimen around the pulley and fixed pulley one of two end of press rods
It is overlapped with test specimen center line and is directed toward test specimen.
Described flexible strand one end is fixed in the aperture of test piece end, and the other end is around the pulley for being bent boom end and determines cunning
Two connection clump weight of wheel, flexible strand stress are directed toward and test specimen central axis.
The pulley of one other end of press rods is located at the lower surface of the body of rod, and the pulley of one other end of torque rod is located at the body of rod
Side.
Described flexible strand one end is fixed in the aperture of test piece end, and the other end bypasses two end of torque rod one and torque rod
Pulley further around cross fixed pulley three connect clump weight, flexible strand stress be directed toward with test specimen center line in horizontal plane.Further
Ground, three directions of the vibration table are respectively equipped with actuator X, actuator Y and actuator Z, and three actuator are fixed on examination
It tests on stage body.
The utility model relates to multi-axes vibration test platform flexible strand loading device, arranged on bracket fixed pulley,
Flexible strand and various force rods.Fixed pulley lengthwise position is adjustable, and not only lengthwise position is adjustable but also length can also for force rod
It adjusts, is cooperated using flexible strand and fixed pulley, arbitrarily change the direction of power but do not change the size of power, and do not influence shake table
Multiaxis random vibration；So that multi-axes vibration test platform can not only load multiaxis random vibration but also can load tension and compression, bending
Equal complex loads, more really simulate the true stress condition of components, and equipment is simple, facilitates installation, facilitate adjusting, side
Just it controls, facilitates load.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the supporting structure schematic diagram of the utility model；
Fig. 3 is the tensional load schematic diagram of the utility model；
Fig. 4 is the compression load schematic of the utility model；
Fig. 5 is the utility model by curved load schematic；
Fig. 6 is the utility model by torsion load schematic；
Fig. 7 is that the fixture of the utility model and test specimen cooperate schematic diagram；
Fig. 8 is that the press rods of the utility model and sleeve cooperate schematic diagram.
Specific embodiment
As shown in Figure 1, a kind of flexible strand loading device for multi-axes vibration test platform, including bracket 1,18 and of flexible strand
Clump weight 19,1 two sides of bracket are equipped with " A font " structured steel pipe with mounting base, and 21 both ends of upper beam and " A font " structural top are solid
Fixed, the side of upper beam 21 is set there are two the hinge with sleeve 5, is crossed 21 drop wire of upper beam and is equipped with central sill 20, central sill 20 is equipped with fixed
Pulley 1, fixed pulley 23 and fixed pulley 34, upper beam 21 and stull 22 are equipped with sleeve 5；Two sleeves 5 of upper beam 21 are distinguished
With press rods 1 and one 7 clearance fit of torque rod and be bolted, three sleeves 5 of stull 22 respectively with press rods two
8, it bent stick 9 and 2 10 clearance fit of torque rod and is bolted；Various force rod one end connection 5 other ends of sleeve are equipped with
Pulley；Test specimen 17 is fixed on vibration table 15 by fixture 16, and 18 one end of flexible strand is fixed in the aperture of 17 end of test specimen,
The other end is hung on clump weight 19 around pulley, and the gravity of clump weight 19, which is respectively converted into, by flexible strand 18 makes test specimen 17
Compression, tension, by power that is curved and being turned round.
Further, described 18 one end of flexible strand is fixed in the aperture of 17 end of test specimen, and the other end bypasses fixed pulley 1
Connection clump weight 19 is that test specimen 17 provides pulling force, is overlapped after flexible strand stress with test specimen center line.The flexible strand 18 passes through examination
The aperture of 17 end of part, one end connect clump weight 19 around the pulley and fixed pulley 1 of one 6 end of press rods, and the other end bypasses
The pulley and fixed pulley 1 of 28 end of press rods connect clump weight 19, provide pressure for test specimen 17, flexible strand is at test specimen 17
Resultant force be overlapped with test specimen center line and be directed toward test specimen.Described 18 one end of flexible strand is fixed in the aperture of 17 end of test specimen, separately
One end connects clump weight 19 around the pulley and fixed pulley 23 of 9 end of bent stick, provides for test specimen 17 by curved power, flexible strand
It is vertical on vertical plane with test specimen center line after stress.Described 18 one end of flexible strand is fixed in the aperture of 17 end of test specimen, another
End connects clump weight 19 further around fixed pulley 34 is crossed around the pulley of 2 10 end of torque rod 1 and torque rod, mentions for test specimen 17
For the power turned round, with test specimen center line in horizontal plane after flexible strand stress.
Further, three directions of vibration table 15 are respectively equipped with actuator X13, actuator Y12 and actuator Z14,
Three actuator are fixed on test-bed body 11.
The flexible strand loading device of this multi-axes vibration test platform arranges fixed pulley, flexible strand and various on bracket
Force rod.Fixed pulley lengthwise position is adjustable, and not only lengthwise position is adjustable but also length is also adjustable for force rod, utilizes flexible strand
Cooperate with fixed pulley, arbitrarily change the direction of power but do not change the size of power, and does not influence the multiaxis random vibration of shake table；
So that multi-axes vibration test platform can not only load multiaxis random vibration but also can load tension and compression, the complex loads such as bending, more
Add and really simulate the true stress condition of components, equipment is simple, facilitates installation, facilitates adjusting, facilitates control, convenient to add
It carries.When experiment, fixture is bolted on vibration table, then test specimen is bolted on fixture, test specimen peace
It installs complete；Bracket is bolted on ground again, rotation fixed pulley one, fixed pulley two and fixed pulley three adjust position,
So that flexible strand is bolted the position of three fixed pulleys around being overlapped after fixed pulley with test specimen center line after centering.It will
Flexible strand one end is fixed in the aperture of test piece end, and the other end bypasses different pulleys according to different stress.Test specimen tension
When power, the flexible strand other end connects clump weight around fixed pulley one, and the gravity of clump weight is converted to test specimen pulling force, flexible strand by
It is overlapped after power with test specimen center line.When test specimen is by pressure, flexible strand passes through the aperture of test piece end, and one end bypasses press rods one end
The pulley and fixed pulley one in portion connect clump weight, and the other end connects counterweight around the pulley and fixed pulley one of two end of press rods
The gravity of clump weight is converted to test specimen pressure by block, and resultant force of the flexible strand at test specimen is overlapped with test specimen center line and is directed toward examination
Part.When test specimen is by curved power, flexible strand one end is fixed in the aperture of test piece end, the other end around bending boom end pulley and
Fixed pulley two connects clump weight, and the gravity of clump weight, which is converted to, makes test specimen by curved power, after flexible strand stress with test specimen center
Line is vertical in vertical plane.When test-piece torsion, flexible strand one end is fixed in the aperture of test piece end, and the other end bypasses torque rod one
Clump weight is connected further around fixed pulley three is crossed with the pulley of two end of torque rod, the gravity of clump weight, which is converted to, makes test-piece torsion
Power, it is vertical in the horizontal plane with test specimen center line after flexible strand stress.Four kinds of stress forms can also be carried out two kinds, three kinds or
Four kinds of combinations, so that multi-axes vibration test platform can not only load multiaxis random vibration but also can load tension and compression, bending etc. is multiple
Miscellaneous load.
Specific embodiment described in the utility model does not constitute the limitation to the application range, all practical new at this
Within the spirit and principle of type design, any modifications, equivalent replacements, and improvements that one of skill in the art can make etc. is equal
It should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of multi-axes vibration test platform loading device, including test-bed body (11) and vibration table (15), vibration table (15)
Three directions be respectively equipped with actuator X (13), actuator Y (12) and actuator Z (14), three actuator are and test-bed body
(11) fixed, test specimen (17) is fixed by fixture (16) and vibration table (15), it is characterised in that: bracket (1) two sides are " A word
The steel pipe of shape " structure, upper beam (21) both ends are fixed with " A font " structural top, the side of upper beam (21) set there are two band sleeve
(5) hinge crosses upper beam (21) drop wire and is equipped with central sill (20), and central sill (20) is equipped with fixed pulley one (2), fixed pulley two (3)
With fixed pulley three (4), bracket (1) is set in the stull (22) of test-bed body (11) side there are three the hinge with sleeve (5)；
Two sleeves (5) of upper beam (21) are respectively with press rods one (6) and one end clearance fit of torque rod one (7) and solid by bolt
Fixed, the other end is equipped with pulley；Be arranged stull (22) three sleeves (5) respectively with press rods two (8), bent stick (9) and turn round
One end clearance fit of bull stick two (10) is simultaneously bolted, and press rods two (8), bent stick (9) and torque rod two (10) are another
The upper surface of one end is equipped with pulley, and flexible strand (18) one end is fixed in the aperture of test specimen (17) end, and the other end is around fixed sliding
One (2) connection clump weight (19) is taken turns, flexible strand (18) stress direction is overlapped with test specimen (17) center line.
2. a kind of multi-axes vibration test platform loading device according to claim 1, which is characterized in that the flexible strand (18)
Aperture across test specimen (17) end, one end connect clump weight around the pulley and fixed pulley one (2) of press rods one (6) end
(19), the other end connects clump weight (19) around the pulley and fixed pulley one (2) of press rods two (8) end, and flexible strand (18) exists
Resultant force at test specimen (17) is overlapped with test specimen (17) center line and is directed toward test specimen (17).
3. a kind of multi-axes vibration test platform loading device according to claim 1, which is characterized in that the flexible strand (18)
One end is fixed in the aperture of test specimen (17) end, and the other end connects around the pulley and fixed pulley two (3) of bent stick (9) end
Clump weight (19), flexible strand (18) stress are directed toward and test specimen (17) central axis.
4. a kind of multi-axes vibration test platform loading device according to claim 1, which is characterized in that the flexible strand (18)
One end is fixed in the aperture of test specimen (17) end, and the other end bypasses the pulley of torque rod one (7) and torque rod two (10) end
Further around fixed pulley three (4) connection clump weight (19) is crossed, flexible strand (18) stress, which is directed toward, hangs down with test specimen (17) center line in horizontal plane
Directly.
5. a kind of multi-axes vibration test platform loading device according to claim 1, it is characterised in that: the press rods one
(6) pulley of the other end is located at the lower surface of the body of rod, and the pulley of torque rod one (7) other end is located at body of rod side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820669333.7U CN208350315U (en) | 2018-05-07 | 2018-05-07 | A kind of multi-axes vibration test platform loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820669333.7U CN208350315U (en) | 2018-05-07 | 2018-05-07 | A kind of multi-axes vibration test platform loading device |
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| Publication Number | Publication Date |
|---|---|
| CN208350315U true CN208350315U (en) | 2019-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820669333.7U Withdrawn - After Issue CN208350315U (en) | 2018-05-07 | 2018-05-07 | A kind of multi-axes vibration test platform loading device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709709A (en) * | 2018-05-07 | 2018-10-26 | 西南交通大学 | A kind of multi-axes vibration test platform loading device |
| CN112345189A (en) * | 2020-10-26 | 2021-02-09 | 清华大学 | Vibration simulation experiment table and control method thereof |
-
2018
- 2018-05-07 CN CN201820669333.7U patent/CN208350315U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709709A (en) * | 2018-05-07 | 2018-10-26 | 西南交通大学 | A kind of multi-axes vibration test platform loading device |
| CN108709709B (en) * | 2018-05-07 | 2024-06-11 | 西南交通大学 | Multi-axis vibration test bed loading device |
| CN112345189A (en) * | 2020-10-26 | 2021-02-09 | 清华大学 | Vibration simulation experiment table and control method thereof |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190108 Effective date of abandoning: 20240611 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190108 Effective date of abandoning: 20240611 |