CN106323572B - A kind of cyclic annular damping part dynamic characteristic test vibration platform apparatus - Google Patents
A kind of cyclic annular damping part dynamic characteristic test vibration platform apparatus Download PDFInfo
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- CN106323572B CN106323572B CN201510342696.0A CN201510342696A CN106323572B CN 106323572 B CN106323572 B CN 106323572B CN 201510342696 A CN201510342696 A CN 201510342696A CN 106323572 B CN106323572 B CN 106323572B
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Abstract
The present invention relates to a kind of cyclic annular damping part dynamic characteristic test vibration platform apparatus, realize the test that part is damped to different size and material ring-type.The vibration platform apparatus includes top base (1), bottom base (2), detection calibration bar (3), detection calibration block (4), test axis (5) and axle sleeve (6)；Bottom base (2) is fixed on a vibration table, 2 top bases (1) are separately fixed on bottom base (2), and the annular positioning groove II (9) and bottom base (2) annular positioning groove III (14) of top base (1) constitute closed ring slot.2 axle sleeves (6) are set in the both ends of test axis (5), and multiple cyclic annular damping parts (7) to be measured are sleeved on axle sleeve (6) and successively in closed ring slot；By thread set on detection calibration bar (3), detection calibration block (4) side contacts detection calibration block (4) with the side in the middle part of test axis (5).Insulation cover (8) spiral-lock is on bottom base (2) bottom.
Description
Technical field
The invention belongs to field of mechanical technique, and in particular to a kind of cyclic annular damping part dynamic characteristic test shake table dress
It sets.
Background technology
In mechanical equipment operational process, vibration can make to generate alternate stress inside equipment component, cause parts production
Raw fatigue failure, prodigious damage is caused to equipment.Therefore vibration-proof structure should be added in mechanical equipment when needed, to subtract
The vibration of skinny device reduces mechanical oscillation and generates harm to equipment.In the design process of vibration-proof structure, zero in vibration-proof structure
The dynamic characteristic of part is one of emphasis factors needed to be considered in design.Part is damped in a large amount of mechanical equipment to be processed to
For annular element, it is therefore desirable to the dynamic characteristic of cyclic annular damping part is tested, for vibration-proof structure design provide reference according to
According to.It is damped the influence of material source, cyclic annular damping part mainly has ring-like polymer material parts and cyclic annular alloy at present
Part two major classes.
The method for testing the dynamic characteristic of damping material has very much, is normally based on one resonance mass method of basic excitation,
Damping part is added between driving source and forced oscillation kinetoplast, by the divided oscillation signal for measuring driving source and forced oscillation kinetoplast respectively
Analysis calculates the dynamic characteristic of damping part, and this method can meet to ring-type damping detail rigidity, damping system using relatively simple
The test request of the crucial dynamic characteristic performance parameter such as number.Presently, there are cyclic annular damping part dynamic characteristic test shake table dress
It sets including test axis, pedestal and annular damper part, annular damper part is sleeved on the designated position of test axis, tests axis and ring
Form drag Buddhist nun's part is placed in the centre bore of pedestal setting.When testing the annular damper part of above two material, need
Two kinds of corresponding test axis are used, and each test axis can only test the annular damper part of correspondingly-sized specification.
Therefore existing cyclic annular damping part dynamic characteristic test vibration platform apparatus has some defects：1) test device
Versatility is poor, and same root test axis can only test the annular damper part of the respective material of corresponding specification, hinder different annulars
The test of Buddhist nun's part needs to frequently replace test axis；2) annular damper part axial can not position, and can not complete annular damper zero
The test of part axial direction dynamic characteristic；3) test device is not provided with calibration function, test axis repeatedly installation and disassembly process
In can not ensure that the measurement direction of sensor is consistent with the direction of vibration of shake table, influence the accuracy of test result；4) it tests
Device can not complete temperature and test the influence for damping part dynamic characteristic.
Invention content
The purpose of the present invention is to provide a kind of cyclic annular damping part dynamic characteristic test vibration platform apparatus, realize to difference
The test of specification and material ring-type damping part realizes the axial dynamic characteristic test with radial twocouese, simple in structure, peace
Dress is convenient.
The technical scheme is that a kind of cyclic annular damping part dynamic characteristic test vibration platform apparatus include shake table,
Top base, bottom base, detection calibration bar, detection calibration block, test axis, axle sleeve and insulation cover.The center of top base is indent half
Cylindrical surface is machined with multiple tracks annular positioning groove I on the indent semi-cylindrical of top base, and multiple tracks annular positioning groove I is along top base
Axis be uniformly distributed；Bottom base is " convex " shape structure, and " convex " shape top is 2 boss, and 2 boss are along the axis side of bottom base
To distribution, the upper surface center of boss is half slot, in the front end face installation patch type temperature sensor of boss, 2 boss
Between be machined with locating slot III, the half slot inner surface of 2 boss is machined with multiple tracks annular positioning groove II, multiple tracks circular orientation
Slot II is corresponded with the annular positioning groove I in 2 top bases respectively；Bottom base is fixed on a vibration table, 2 top bases point
It is not fixed on 2 boss, one support cylindrical surface of half slot composition of the indent semi-cylindrical and bottom base of 2 top bases,
Support the axis on cylindrical surface parallel with shake table, annular positioning groove II in correspondence with each other, forms closed-loop with the positions annular positioning groove I
Shape slot structure.
Test axis is multi-diameter shaft, and the top surface and two sides tested in the middle part of axis are plane, and top surface is hung down with two sides
Directly, it glues on top surface and is stained with three-dimensional acceleration transducer, the both direction in the measurement direction of three-dimensional acceleration transducer is respectively
Test the normal direction of the axial direction and top surface of axis；2 axle sleeves are set in the both ends of test axis, and test axis both ends pass through nut axial direction
Fixed, multiple cyclic annular damping parts to be measured are sleeved on axle sleeve successively, and test axis, axle sleeve prop up together with cyclic annular damping part to be measured
Support is in support cylindrical surface, and cyclic annular damping part to be measured is located in complete annular slot structure.
Detection calibration block is " L " shape, and " L " the shape vertical portion of detection calibration block is by thread set in detection calibration bar
On, the both ends of detection calibration bar are supported on bottom base, and the axis of detection calibration bar is parallel with shake table, and detection calibration bar
Axis is slidably connected perpendicular to the axis for testing axis, " L " shape bottom and the locating slot III of detection calibration block, makes detection calibration block
" L " shape vertical portion lateral surface with test axis in the middle part of a side contact.
Insulation cover spiral-lock is fixed on " convex " the shape bottom of bottom base, and insulation cover is by top base, bottom base, detection calibration
Bar, detection calibration block and test axis cover in insulation cover.
When the material of cyclic annular damping part to be measured is high molecular material, it is arranged on the external cylindrical surface of the axle sleeve multiple
Annular projection, structure and distributing position and the multiple tracks annular positioning groove I of multiple annular projections are corresponded, the bottom of annular projection
Portion's diameter is smaller than the diameter of the semi-cylindrical at top base center；The outer diameter of annular projection is more straight than the semi-cylindrical at top base center
Diameter is big, and smaller than the annular positioning groove I base diameters of top base, and the width of annular projection is smaller than the width of annular positioning groove I.
The insulation cover inner top surface is equipped with multiple rows of quartz heating tube, and the side of insulation cover is provided with a through-hole, insulation cover it is interior
Surface is coated with heat insulating coat.
The beneficial effects of the present invention are：1) the configuration of the present invention is simple, easy for installation；2) present invention can be achieved at the same time ring
Shape damps the dynamic characteristic test of part axial and radial twocouese；3) present invention realizes the ring-like polymer material to different size
Expect part and cyclic annular damping alloy part testing；4) during the test, the present invention has preferably ring-like polymer material parts
Compression effectiveness, influence of the high molecular material part compression ratio parameter to cyclic annular damping part dynamic characteristic can be carried out and tested；
5) during the test, the present invention realizes that measurement direction is accurately positioned with actual vibration direction；6) use the present invention that can carry out
Influence of the temperature to cyclic annular damping part dynamic characteristic is tested.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of cyclic annular damping part dynamic characteristic test device of the present invention；
Fig. 2 is the vertical view that Fig. 1 removes insulation cover；
Fig. 3 is the left view that Fig. 1 removes bearing；
Fig. 4-1 is the structural schematic diagram of top base in the present invention；
Fig. 4-2 is the upward view of Fig. 4-1；
Fig. 4-3 is the sectional view of Fig. 4-1；
Fig. 5-1 is the structural schematic diagram of bottom base in the present invention；
Fig. 5-2 is the vertical view of Fig. 5-1；
Fig. 5-3 is the side view of Fig. 5-1；
Fig. 6 is the structural schematic diagram of detection calibration bar in the present invention；
Fig. 7-1 is the structural schematic diagram of detection calibration block in the present invention；
Fig. 7-2 is the side view of Fig. 7-1；
Fig. 8-1 is the structural schematic diagram that axis is tested in the present invention；
Fig. 8-2 is the middle part sectional view that Fig. 8-1 removes acceleration transducer；
Fig. 9-1 is that cyclic annular damping alloy design of part schematic diagram is tested in the present invention；
Fig. 9-2 is that ring-like polymer material parts structural schematic diagram is tested in the present invention；
Figure 10-1 is axle sleeve structure schematic diagram of the present invention for testing cyclic annular damping alloy part；
Figure 10-2 is the side view of Figure 10-1；
Figure 10-3 is the assembling structure schematic diagram of axle sleeve of the present invention for testing cyclic annular damping alloy part；
Figure 10-4 is axle sleeve structure schematic diagram of the present invention for testing cyclic annular high molecular material part；
Figure 10-5 is the side view of Figure 10-4；
Figure 10-6 is assembling structure schematic diagram of the present invention for testing cyclic annular high molecular material part axle sleeve；
Figure 11-1 is the structural schematic diagram of insulation cover in the present invention；
Figure 11-2 is the side view of Figure 11-1；
Figure 11-3 is the upward view of Figure 11-1；
Figure 12 is the schematic diagram of detection calibration block calibration test axis direction in present invention actual use；
Specific implementation mode
The structure and the course of work that the invention will now be described in detail with reference to the accompanying drawings.
As shown in Figure 1, Figure 2 and Figure 3, a kind of cyclic annular damping part dynamic characteristic test vibration platform apparatus of the present invention includes shaking
Dynamic platform, top base 1, bottom base 2, detection calibration bar 3, detection calibration block 4, test axis 5, axle sleeve 6 and insulation cover 8.Shake table is adopted
With existing.
As shown in Fig. 4-1, Fig. 4-2, Fig. 4-3, the top base 1 in the present invention is the flanged semicircle ring structure in both sides, on
The center of pedestal 1 is indent semi-cylindrical, and multiple tracks annular positioning groove I9 is machined on the indent semi-cylindrical of top base 1, more
The groove depth of road annular positioning groove I9 is identical, and is uniformly distributed along the axis of top base 1, i.e. distance phase between annular positioning groove I9
Together, there are distances between two annular positioning groove I9 and the both ends of the surface of top base 1 in outside.
As shown in Fig. 5-1, Fig. 5-2, Fig. 5-3, the bottom base 2 in the present invention is " convex " shape structure, and " convex " shape top is 2
10,2 boss 10 of boss are distributed along the axis direction of bottom base 2, and 2 boss 10 are respectively used to 2 top bases 1 of installation." convex "
Shape lower part is pedestal.The upper surface center of boss 10 is half slot 11, is provided on the front end face of boss 10 for installing patch
The threaded hole 12 of chip temperature sensor, temperature sensor, which is connected through a screw thread, to be fitted in threaded hole 12, for testing lower base
The temperature of seat 2, the data of temperature sensor are exported to external test system.It is machined with locating slot III13 among 2 boss 10.2
11 inner surface of half slot of a boss 10 is machined with multiple tracks annular positioning groove II14, and multiple tracks annular positioning groove II14 is respectively with 2
Annular positioning groove I9 in a top base 1 is corresponded.
Bottom base 2, which is bolted, to be fixed on shake table, and fixation is bolted in 2 top bases 1 respectively
On 2 boss 10, the centre bore axis of 2 top bases 1 is overlapped with the centre bore axis of bottom base 2, i.e. 2 top bases 1
The half slot 11 of indent semi-cylindrical and bottom base 2 constitute a support cylindrical surface, support the axis and shake table on cylindrical surface
It is parallel.2 top bases 1 and bottom base 2 after installation is complete annular positioning groove II14 with the positions annular positioning groove I9 in correspondence with each other,
Form closed ring slot structure.
2 axle sleeves 6 are set with the both ends of test axis 5, and test 5 both ends of axis pass through nut axial restraint, multiple rings to be measured
Shape damping part 7 is sleeved on successively on axle sleeve 6, and test axis 5, axle sleeve 6 and cyclic annular damping part 7 to be measured are supported on together on 2
Pedestal 1 is constituted with bottom base 2 in a support cylindrical surface, and cyclic annular damping part 7 to be measured is located in closed ring slot structure.
As shown in Fig. 7-1, Fig. 7-2, the detection calibration block 4 in the present invention is " L " shape, and " L " shape of detection calibration block 4 is vertical
Part is by thread set on detection calibration bar 3.The both ends of detection calibration bar 3 on bottom base 2, are surveyed by bearing support
The axis for trying calibrating stem 3 is parallel with shake table, and the axis of detection calibration bar 3 is perpendicular to the axis for testing axis 5, and detection calibration block
4 " L " shape bottom is inserted into the locating slot III13 of bottom base 2 so that detection calibration block 4 can be with detection calibration bar 3
The locating slot III13 translations along bottom base 2 are rotated, are made in " L " shape vertical portion lateral surface and test axis 5 of detection calibration block 4
One side in portion contacts.
8 spiral-lock of insulation cover is simultaneously bolted on the pedestal for being fixed on bottom base 2.Insulation cover 8 is by the device of the invention
It covers in insulation cover 8, realizes the heat insulation effect to apparatus of the present invention entirety.
As shown in fig. 6, the detection calibration bar 3 in the present invention is a multi-diameter shaft, one end of detection calibration bar 3 can be with installing handle
Hand, handle is for facilitating rotation detection calibration bar 3.
As shown in Fig. 8-1 and 8-2, the test axis 5 in the present invention is multi-diameter shaft.Test the top surface and two sides at 5 middle part of axis
It is plane 15, and top surface and two sides are vertical, and three-dimensional acceleration transducer 16, three-dimensional are equipped with by gluing on top surface
Both direction in the measurement direction of acceleration transducer 16 is respectively the normal direction of the axial direction and top surface of testing axis 5, and three-dimensional accelerates
Spending sensor 16 can be by electric signal output to external test system, to obtain the vibration signal of test axis 5.
There are two types of the cyclic annular damping parts 7 that the present invention can be tested, respectively cyclic annular damping alloy part 17 and ring
Shape high molecular material part 18.
The axle sleeve 6 that the present invention is used to test the cyclic annular damping part of above two material is different.
As shown in Figure 10-1, Figure 10-2 and Figure 10-3, the axle sleeve 6 for testing cyclic annular damping alloy part 17 is annular
Cylinder.
As shown in Figure 10-4 and 10-5, the axle sleeve 6 for testing cyclic annular high molecular material part 18 is circular cylinder,
But there are multiple annular projections on its external cylindrical surface.The structure and distributing position of multiple annular projections and the multiple tracks ring on top base 1
Shape locating slot I9 is corresponded.The outer diameter of 6 circular cylinder of axle sleeve is smaller than the diameter of the semi-cylindrical at 1 center of top base, i.e.,
The base diameter of annular projection is smaller than the diameter of the semi-cylindrical at 1 center of top base；The outer diameter of annular projection is than 1 center of top base
Semi-cylindrical diameter it is big but smaller than the annular positioning groove I9 base diameters of top base 1, and annular projection width than annular
The width of locating slot I9 is smaller.
Similarly, by the present invention in that with different axle sleeve 6 realize to the cyclic annular damping part of different-thickness, different materials into
Mobile state characteristic test, can also realize under the conditions of different pre compressed magnitudes, the ring-like polymer material parts of different materials into
Mobile state characteristic test so that test all-purpose of the invention is stronger.
As shown in Figure 11-1, Figure 11-2, Figure 11-3, the insulation cover 8 in the present invention is the box structure of a lower ending opening, is being protected
The inner top surface of temperature cover 8 is equipped with multiple rows of quartz heating tube, and quartz heating tube can realize 8 inner space of insulation cover and heat.Heat preservation
The side of cover 8 is provided with a through-hole, so that the sensor conductor in insulation cover 8 is accessed external detecting system.The interior table of insulation cover 8
Face is coated with heat insulating coat, reduces the heat exchange in 8 inside and outside space of insulation cover.In order to increase the rigidity of insulation cover 8.In insulation cover
8 top surface is added with multiple rows of reinforcing rib.
The course of work of the present invention is, as shown in Figure 10-6, with the dynamic characteristic of test ring-type high molecular material part 18
For, when test, multiple cyclic annular parts that damp are sleeved on the annular projection of axle sleeve 6；Axle sleeve 6 is mounted on test axis 5, two
Axle sleeve 6 is fixed on test axis 5 by end nut；Test axis 5 is placed in the half slot 11 at 2 center of bottom base, Duo Gehuan
Shape high molecular material part 18 is located in the multiple tracks annular positioning groove II14 of bottom base 2.As shown in figure 12, detection calibration is rotated
Bar 3 makes locating slot III13 translation of the detection calibration block 4 along bottom base 2, when the vertical plane of detection calibration block 4 is fitted tightly over survey
When trying side in axis 5, you can the bottom surface exact vertical for ensureing the top surface normal direction and bottom base 2 of test axis 5, to ensure test side
To accuracy.Device is installed on a vibration table, and by insulation cover 8 entirely through the through-hole being arranged on bottom base 2 bolt
On bottom base 2.Device internal environment is heated to assigned temperature by the quartz heating-pipe being arranged in insulation cover 8.It opens
Dynamic shake table provides excited vibration signal for shake table, and shake table is as the whole axial direction in test axis 5 of driving source driving device
It is vibrated simultaneously with top surface normal direction both direction, it, can by the output of three-dimensional acceleration transducer 16 to the data of external test system
With the vibration signal of read test axis 5.By comparing the excited vibration signal of the vibration signal and shake table of test axis 5, you can
The dynamic characteristic of high molecular material part 18 is calculated.
The configuration of the present invention is simple.To be tested cyclic annular zero is only needed replacing when testing different annular elements
Part and corresponding axle sleeve 6, disassembly process is more convenient, saves the test experiments time.
The present invention is when carrying out ring-like polymer 18 compression experiment of material parts, due to 18 quilt of ring-like polymer material parts
It is compressed in top base 1, in the endless groove that bottom base 2 and axle sleeve 6 form, ring-like polymer material parts 18 are during the installation process not
Preferable compression effectiveness can be ensure that in the 5 axial generation position changing of the relative positions of test axis.
Claims (3)
1. a kind of cyclic annular damping part dynamic characteristic test vibration platform apparatus, it is characterized in that：The vibration platform apparatus include shake table,
Top base (1), bottom base (2), detection calibration bar (3), detection calibration block (4), test axis (5), axle sleeve (6) and insulation cover (8)；
The center of top base (1) is indent semi-cylindrical, and it is fixed that multiple tracks annular is machined on the indent semi-cylindrical of top base (1)
Position slot I (9), multiple tracks annular positioning groove I (9) are uniformly distributed along the axis of top base (1)；Bottom base (2) is " convex " shape structure,
" convex " shape top is 2 boss (10), and 2 boss (10) are distributed along the axis direction of bottom base (2), the upper surface of boss (10)
Center is half slot (11), installs patch type temperature sensor in the front end face of boss (10), is machined among 2 boss (10)
Half slot (11) inner surface of locating slot III (13), 2 boss (10) are machined with multiple tracks annular positioning groove II (14), multiple tracks
Annular positioning groove II (14) is corresponded with the annular positioning groove I (9) in 2 top bases (1) respectively；Bottom base (2) is fixed on
On shake table, 2 top bases (1) are separately fixed on 2 boss (10), the indent semi-cylindrical of 2 top bases (1) and lower base
The half slot (11) of seat (2) constitutes a support cylindrical surface, supports the axis on cylindrical surface parallel with shake table, annular positioning groove II
(14) in correspondence with each other with annular positioning groove I (9) position, complete annular slot structure is formed；
It is multi-diameter shaft to test axis (5), and the top surface and two sides in the middle part of test axis (5) are plane, and top surface and two sides are equal
Vertically, it glues on top surface and is stained with three-dimensional acceleration transducer (1 6), two in the measurement direction of three-dimensional acceleration transducer (16)
Direction is respectively the normal direction of the axial direction and top surface of testing axis (5)；2 axle sleeves (6) are set in the both ends of test axis (5), survey
Axis (5) both ends are tried by nut axial restraint, multiple cyclic annular damping parts (7) to be measured are sleeved on successively on axle sleeve (6), test axis
(5), axle sleeve (6) is supported on the cyclic annular part (7) that damps to be measured in support cylindrical surface together, and cyclic annular damping part (7) to be measured
In complete annular slot structure；
Detection calibration block (4) is " L " shape, and " L " the shape vertical portion of detection calibration block (4) is by thread set in detection calibration bar
(3) on, the both ends of detection calibration bar (3) are supported on bottom base (2), and the axis of detection calibration bar (3) is parallel with shake table, and
The axis of detection calibration bar (3) is perpendicular to the axis of test axis (5), " L " shape bottom and the locating slot III of detection calibration block (4)
(13) it is slidably connected, " L " shape vertical portion lateral surface of detection calibration block (4) is made to be connect with a side in the middle part of test axis (5)
It touches;
Insulation cover (8) spiral-lock is fixed on " convex " the shape bottom of bottom base (2), insulation cover 8 by top base (1), bottom base (2),
Detection calibration bar (3), detection calibration block (4) and test axis (5) cover in insulation cover (8).
2. a kind of cyclic annular damping part dynamic characteristic test vibration platform apparatus described in accordance with the claim 1, it is characterised in that：When
When the material of cyclic annular damping part (7) to be measured is high molecular material, multiple ring-types are set on the external cylindrical surface of the axle sleeve (6)
Protrusion, structure and distributing position and the multiple tracks annular positioning groove I (9) of multiple annular projections are corresponded, the bottom of annular projection
Diameter is smaller than the diameter of the semi-cylindrical at top base (1) center；Semi-cylindrical of the outer diameter of annular projection than top base (1) center
Diameter it is big and smaller than annular positioning groove I (9) base diameter of top base (1), the width of annular projection is than annular positioning groove I
(9) width is smaller.
3. a kind of cyclic annular damping part dynamic characteristic test vibration platform apparatus described in accordance with the claim 1, it is characterised in that：Institute
It states insulation cover (8) inner top surface and multiple rows of quartz heating tube is housed, the side of insulation cover (8) is provided with a through-hole, the interior table of insulation cover (8)
Face is coated with heat insulating coat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510342696.0A CN106323572B (en) | 2015-06-19 | 2015-06-19 | A kind of cyclic annular damping part dynamic characteristic test vibration platform apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510342696.0A CN106323572B (en) | 2015-06-19 | 2015-06-19 | A kind of cyclic annular damping part dynamic characteristic test vibration platform apparatus |
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| Publication Number | Publication Date |
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| CN106323572A CN106323572A (en) | 2017-01-11 |
| CN106323572B true CN106323572B (en) | 2018-11-09 |
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| CN201510342696.0A Expired - Fee Related CN106323572B (en) | 2015-06-19 | 2015-06-19 | A kind of cyclic annular damping part dynamic characteristic test vibration platform apparatus |
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| CN202024955U (en) * | 2011-04-13 | 2011-11-02 | 上海朱仕实业有限公司 | Damping test device |
| CN203614651U (en) * | 2013-12-04 | 2014-05-28 | 中国直升机设计研究所 | Hydraulic damper fatigue test piece |
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| CN106323572A (en) | 2017-01-11 |
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