CN110487521A - For testing the test method of the anti-loosening performance of corrugated plating connector - Google Patents
For testing the test method of the anti-loosening performance of corrugated plating connector Download PDFInfo
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- CN110487521A CN110487521A CN201910650361.3A CN201910650361A CN110487521A CN 110487521 A CN110487521 A CN 110487521A CN 201910650361 A CN201910650361 A CN 201910650361A CN 110487521 A CN110487521 A CN 110487521A
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- corrugated plating
- connector
- test specimen
- locking
- plating connector
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
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- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention proposes a kind of for testing the test method of the anti-loosening performance of corrugated plating connector, comprising the following steps: chooses two pieces of corrugated platings and is fastenedly connected by corrugated plating connector, to make the locking test specimen of corrugated plating connector；The locking test specimen of corrugated plating connector is installed in oscillation crosswise experimental machine, and applies pre- clamping force；Start the oscillation crosswise experimental machine to load to the locking test specimen of corrugated plating connector, and the size and vibration number of the clamping force of the locking test specimen of corrugated plating connector are recorded, until the pre- clamping force closes the oscillation crosswise experimental machine when reaching predetermined value；The locking test specimen of corrugated plating connector of several groups different model is selected, above-mentioned each test procedure is repeated；Repairing experiment data are drawn the relationship change curve graph of vibration number and clamping force for the locking test specimen of the corrugated plating connector of different model, and are compared and analyzed, to obtain the anti-loosening performance of the locking test specimen of corrugated plating connector.
Description
Technical field
The invention belongs to the anti-loosening technical field of performance test of corrugated plating connector, reinforce more particularly to disease culvert
It is especially a kind of for testing the test side of the anti-loosening performance of corrugated plating connector with the performance test of corrugated plating connector
Method.
Background technique
In recent years, corrugated plating is widely used in reinforcing disease culvert.Corrugated plating generallys use corrugated plating in application process
Connector carries out installation connection.Stress and failure mechanism at corrugated plating longitudinal seam is sufficiently complex, studies have shown that steel construction
The Failure type of connector mainly has the bearing failure of hole wall, the failure by shear of screw rod and buckling structure to destroy.When plate compared with
It is easy so that the pressure-bearing surface of bolt hole there is a situation where extruding destruction or screw rod cutting occurs when thin perhaps thicker.It adopts in China
Installation connection carried out to corrugated plating with high-strength bolt friction-type connection, the quantity of the connection bolt that this connection method uses compared with
Greatly, and to be bolted intensity requirement higher.
After disease culvert is reinforced using corrugated plating, under train load effect, corrugated board structures show tension and compression in culvert
Stress is then mainly pressured state at chamfering.With the popularization and application of corrugated plating embedded structure at home, to corrugated plating
The requirement of bonding strength is higher and higher, and the requirement to the design value of corrugated plating joint strength is also more and more accurate.When train passes through
When tunnel, the dynamic load of train can cause tunnel lining structure to vibrate, and vibration wave is propagated around from tunnel bottom, and shake
Secondly dynamic response is abutment wall, is finally vault in tunnel bottom maximum.However, the vibration in tunnel is rung due to aerodynamic influence
It should can be increased.Due to being connected by screw bolts between corrugated plating plate, the vibration of bolt is predominantly along the transverse-vibration of pressure-bearing surface
It is dynamic.Connection bolt is under oscillation crosswise effect as a result, and the bolt later period has the hidden danger for loosening and even falling, so as to cause shock
The generation of the accident of train.Therefore, the anti-loosening property of the joint strength to corrugated board structures lap-joint and corrugated plating connector
It can be carried out experimental study, and be particularly important according to the anti-loosening scheme that test result formulates reliable corrugated plating connector.
Summary of the invention
For technical problem as described above, the present invention is intended to provide a kind of for testing the anti-loosening of corrugated plating connector
The test method of performance, the test method can multiple groups corrugated plating test specimen to different model carry out test of many times, to obtain
Multiple groups test data, and test data high reliablity.Further, it is possible to effectively comparison and analysis are carried out to test data, thus
The anti-loosening performance of corrugated plating connector is obtained, to formulate the anti-loosening scheme of reliable corrugated plating connector.In addition, the test
Method can test to loosening performance of the corrugated plating connector under different construction torques, so as to effectively avoid ripple
Plate connector occurs to loosen the accident for even falling and hitting train, can effectively ensure that railway operation safety.
For this purpose, propose according to the present invention it is a kind of for testing the test method of the anti-loosening performance of corrugated plating connector,
The following steps are included: choose two pieces of corrugated platings and be fastenedly connected by corrugated plating connector, it is locking to make corrugated plating connector
Test specimen；The locking test specimen of corrugated plating connector is installed in oscillation crosswise experimental machine, and applies pre- clamping force；Described in starting
Oscillation crosswise experimental machine is to load the locking test specimen of corrugated plating connector, and it is locking to record the corrugated plating connector
The size and vibration number of the clamping force of test specimen, until clamping force closes the oscillation crosswise experimental machine when reaching predetermined value；
The locking test specimen of corrugated plating connector of several groups different model is selected, above-mentioned each test procedure is repeated；Repairing experiment data,
The relationship change curve graph of vibration number and clamping force is drawn for the locking test specimen of the corrugated plating connector of different model, and
It compares and analyzes, to obtain the anti-loosening performance of the locking test specimen of corrugated plating connector.
In a preferred embodiment, the oscillation crosswise experimental machine adds the locking test specimen of corrugated plating connector
Carry the range that vibration frequency uses 1.5-15Hz according to the actual frequency of train vibration.
In a preferred embodiment, the locking test specimen of corrugated plating connector described in every group includes at least 10.
In a preferred embodiment, the corrugated plating connector use screw bolt and nut, and the bolt use
Specification is M16-M30.
In a preferred embodiment, when making the locking test specimen of the corrugated plating connector, in the corrugated plating and institute
It states and adds lubricant on the junction and supporting surface of corrugated plating connector.
In a preferred embodiment, the locking test specimen of the corrugated plating connector is applied using torque-indicating wrench pre-
The locking test specimen of corrugated plating connector is installed in the oscillation crosswise experimental machine by clamping force.
In a preferred embodiment, the thickness of corrugated plating described in the monolithic in the locking test specimen of corrugated plating connector
For in the range of 3mm-12mm.
In a preferred embodiment, spill gasket is equipped between the bolt and the corrugated plating.
In a preferred embodiment, convex gasket is equipped between the nut and the corrugated plating.
In a preferred embodiment, between the bolt and the spill gasket and the nut with it is described
Lock washer is equipped between convex gasket.
Compared with prior art, it is in place of advantages of the present invention:
The test method of anti-loosening performance according to the present invention for testing corrugated plating connector can be to different model
Multiple groups corrugated plating test specimen carry out test of many times, to obtain multiple groups test data, the wing reduces test error, improves test data
Reliability.Also, test data, which is plotted in coordinate system, to be compared and analyze to test data, data analysis
Accurately and reliably, can clearly obtain pre- clamping force with the changing rule of vibration number obtain test data analyzer as a result, from
And the anti-loosening performance of corrugated plating connector is obtained, to formulate the anti-loosening scheme of reliable corrugated plating connector.In addition, should
Test method can test to loosening performance of the corrugated plating connector under different construction torques, so as to effectively avoid
Corrugated plating connector occurs to loosen the accident for even falling and hitting train, can effectively ensure that railway operation safety.
Detailed description of the invention
The present invention will be described below with reference to accompanying drawings.
Fig. 1 shows the wave in the test method of the anti-loosening performance according to the present invention for testing corrugated plating connector
The structure of the locking test specimen of card connector.
Fig. 2 shows the pre- of the corrugated plating connector of the processing analysis of test data obtained by test method according to the present invention
Clamping force and vibration number curve graph.
In this application, all attached drawings are schematical attached drawing, are merely to illustrate the principle of the present invention, and not by real
Border ratio is drawn.
Specific embodiment
The present invention is introduced below by attached drawing.
Fig. 1 shows the wave in the test method of the anti-loosening performance according to the present invention for testing corrugated plating connector
The structure of the locking test specimen 100 of card connector.During carrying out the test, firstly, the production locking examination of corrugated plating connector
Part 100.As shown in Figure 1, the locking test specimen 100 of corrugated plating connector includes two pieces of corrugated platings 110 and is used to fasten two pieces of corrugated platings
110 corrugated plating connector 120.Model, material and the related ginseng of corrugated plating sample in corrugated plating connector test specimen 100
It is several consistent with the corrugated plating of actual use and its splicing structure with the arrangement of corrugated plating connector 120 etc., to simulate corrugated plating company
The change procedure of clamping force of the fitting test specimen 100 in true application scenarios, to improve the anti-of corrugated plating connector test specimen 100
Loosen the reliability of performance test.
In one embodiment, corrugated plating connector 120 uses high-strength bolt nut assembly.In order to meet corrugated plating 110
The requirement being fastenedly connected with the clamping force of corrugated plating connector 120, and then the accuracy of guarantee test result, in bolt 121
Spill gasket 123 is installed between corrugated plating 110, convex gasket 124 is installed between nut 122 and corrugated plating 110.In
Between bolt 121 and spill gasket 123 and corresponding between nut 122 and convex gasket 124 lock washer 125 is installed.
The specification that bolt 121 uses is M16-M30.Bolt and nut component ensure that being fastenedly connected for corrugated plating, effectively simulate true
Corrugated plating connector in scene installs the fastening of corrugated plating, to ensure that the anti-loosening performance of corrugated plating connector 120
The reliability of test and the accuracy of test result.
Multi-group data is made with improving the accuracy of test data according to different ripple board parameters, plate thickness in order to obtain
Multiple groups corrugated plating test specimen, for carrying out test of many times, to obtain multiple groups test data.The locking test specimen 100 of corrugated plating connector wraps
The test specimen sample of multiple groups different parameters model is included, and every group of test specimen sample is no less than 10.During the test, if vibrating
Characteristic, test specimen installation and removal torque etc. should then add 15 there are when larger difference.As a result, by increasing the group
Test sample quantity obtains more test datas by test of many times, so as to effectively reduce test error, improves examination
The accuracy for testing data enhances the reliability of test result.
In the present embodiment, the locking test specimen 100 of corrugated plating connector can be adopted according to the corrugated plating model in practical application
With the corrugated plating of different wave.For example, corrugated plating can use waveform for 150mm × 50mm, 200mm × 55mm, 230mm ×
64mm corrugated plating, bolt 121 using model M20 bolt or corrugated plating use waveform for 300mm × 110mm, 381mm ×
140mm, 400mm × 150mm corrugated plating, bolt 121 use the bolt of model M24.Also, the thickness of corrugated plating 110 is adopted
With in the range of 3mm-12mm.It is repeatedly tried according to the different model of the locking test specimen 100 of corrugated plating connector as a result,
It tests.Certainly, in order to further increase the accuracy of test data, test error is reduced, enhances the reliability of test result, may be used also
Using the corrugated plating connector test specimen of other different models.
According to the present invention, the anti-loosening performance test of corrugated plating connector in room temperature, normal pressure, clean environment into
Row.Therefore, in locking 100 manufacturing process of test specimen of corrugated plating connector, when clamping test specimen, in corrugated plating and corrugated plating connector
Lubricant is added between threaded connection and on supporting surface, scratches screw thread and supporting surface or because frictional heat generation is killed in order to avoid generating
Phenomenon, to reduce the influence to the accuracy of test result.
After the locking test specimen 100 of corrugated plating connector completes, choose in the locking test specimen 100 of one group of corrugated plating connector
It one and is fixed and is mounted on oscillation crosswise experimental machine (not shown).When installation, to the locking test specimen of corrugated plating connector 100
Apply pre- clamping force, and tests pre- clamping force according to test requirements document or the actual work clamping force of test specimen or construction torque come really
It is fixed.In one embodiment, the installation locking test specimen 100 of corrugated plating connector is fastened using torque-indicating wrench, and ensures work
Clamping force or construction torque meet design requirement.Meanwhile guaranteeing the vibration of the locking test specimen 100 of corrugated plating connector in a free state
Width should ensure that bolt test specimen is not sheared.
According to the present invention, before the locking test specimen 100 of corrugated plating connector is installed, oscillation crosswise experimental machine need to be adjusted.
First oscillation crosswise experimental machine is powered on, oscillation crosswise experimental machine is started under idle condition, and adjusts speed regulation button to make it
Reach unloaded scheduled frequency.Then, the eccentric wheel lock-screw of oscillation crosswise experimental machine is unclamped, adjusting eccentricity makes transverse-vibration
Dynamic experimental machine reaches scheduled non-loaded amplitude.Later, the movable plate of oscillation crosswise experimental machine is adjusted to centre of motion position, and led to
It crosses torque-indicating wrench the locking test specimen 100 of corrugated plating connector is securely mounted in oscillation crosswise experimental machine.Corrugated plating is connected
After the locking test specimen 100 of fitting is securely mounted in oscillation crosswise experimental machine, starting oscillation crosswise experimental machine is connected to by corrugated plating
The locking test specimen 100 of part is loaded.In loading procedure, the frequency for testing load (is arranged according to the frequency of use in practical application
Vehicle vibration is transferred to frequency using position) or test requirements document input oscillation crosswise experimental machine system interface.If not can determine that
The loading frequency of specific frequency of use, oscillation crosswise experimental machine is within the scope of 1.5-15Hz, it is preferred to use 12.5Hz, with right
The locking test specimen 100 of corrugated plating connector is loaded.Meanwhile in the loading procedure of oscillation crosswise experimental machine, record adds in real time
The clamping force of number and the locking test specimen 100 of corresponding corrugated plating connector is carried, until closing when clamping force reaches predetermined value
The oscillation crosswise experimental machine.
After the completion of oscillation crosswise experimental machine is to locking 100 load test of test specimen of a corrugated plating connector in one group, tear open
Under all locking test specimens 100 of corrugated plating connector.The test process for repeating above-mentioned installation and load, to other waves in same group
Test data is successively tested and recorded to the locking test specimen 100 of card connector, until it is locking to complete one group of corrugated plating connector
The load test of test specimen 100.Later, the locking examination of corrugated plating connector by above-mentioned test procedure to other groups of different model
Part 100 carries out load test, until completing the load test of all groups of the locking test specimen 100 of all corrugated plating connectors, and remembers
Record obtains corresponding test data.Obtain multiple groups test data as a result, thus by the corrugated plating connector to different model into
The test of row multiple groups, obtained test data is more acurrate, significantly improves the reliability of test result.
After the completion of the equal load test of all locking test specimens 100 of corrugated plating connector, arranges resulting test data and carry out
Comparative analysis, to draw a conclusion.In one embodiment, the clamping of the locking test specimen 100 of resulting corrugated plating connector will be tested
Power and load vibration are this time plotted in coordinate system, to show locking 100 clamping force of test specimen of corrugated plating connector and vibration number
Change curve.As shown in Fig. 2, abscissa indicates time (or vibration number), ordinate indicates that corrugated plating connector is locking
The clamping force of test specimen 100.During showing test by change curve as a result, the locking test specimen 100 of corrugated plating connector
Clamping force is with the change procedure for loading vibration number.Every curve in Fig. 2 indicates the locking test specimen 100 of a corrugated plating connector
Under the action of loading oscillating load, pre- clamping force with vibration number attenuation law.Pass through the locking test specimen of corrugated plating connector
The change curve of 100 clamping forces and vibration number can clearly obtain pre- clamping force with the changing rule of vibration number, from
And obtain test data analyzer as a result, and data analysis it is accurate and reliable.
According to the present invention, the variation of the corrugated plating connector shown by Fig. 2 locking test specimen 100 clamping force and vibration number
Curve graph can be derived that, the locking test specimen 100 of the good corrugated plating connector of anti-loosening performance with vibration number increase, curve by
Step tends towards stability.This shows that the pre- clamping force of the locking test specimen 100 of corrugated plating connector no longer reduces, and muscles and bones connection tends to be steady
Fixed, bolt and nut component is not in that loosening is fallen, and illustrates the corrugated plating connection in the locking test specimen 100 of the corrugated plating connector
Part 120 it is anti-loosening functional.And the anti-loosening locking test specimen 100 of performance difference corrugated plating connector is with the increasing of vibration number
Add, the decline of curve straight line.This shows that the pre- clamping force loss of the locking test specimen 100 of corrugated plating connector is obvious, bolt and nut component
It is continuous to loosen, it will appear loosening in operation later period bolt and nut component and fall, illustrate the locking test specimen 100 of the corrugated plating connector
In corrugated plating connector 120 anti-loosening performance it is poor.It as a result, can be to corrugated plating connector not using the test method
It tests with the loosening performance under construction torque, falls shock train so as to avoid corrugated plating connection bolt from occurring to loosen
Accident, ensure that railway operation safety.
The test method of anti-loosening performance according to the present invention for testing corrugated plating connector can be to different model
Multiple groups corrugated plating test specimen carry out test of many times, to obtain multiple groups test data, the wing reduces test error, improves test data
Reliability.Also, test data, which is plotted in coordinate system, to be compared and analyze to test data, data analysis
Accurately and reliably, can clearly obtain pre- clamping force with the changing rule of vibration number obtain test data analyzer as a result, from
And the anti-loosening performance of corrugated plating connector is obtained, to formulate the anti-loosening scheme of reliable corrugated plating connector.In addition, should
Test method can test to loosening performance of the corrugated plating connector under different construction torques, so as to effectively avoid
Corrugated plating connector occurs to loosen the accident for even falling and hitting train, can effectively ensure that railway operation safety.
Finally it should be noted that the foregoing is merely the preferred embodiments of the invention, do not constitute to the present invention
Any restrictions.Although referring to foregoing embodiments, invention is explained in detail, for the technology of this field
It for personnel, can still modify to technical solution documented by previous embodiment, or to part of technical characteristic
It is equivalently replaced.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should all wrap
Containing within protection scope of the present invention.
Claims (10)
1. the test method for the anti-loosening performance for testing corrugated plating connector, comprising the following steps:
It chooses two pieces of corrugated platings (110) and is fastenedly connected by corrugated plating connector (120), it is locking to make corrugated plating connector
Test specimen (100)；
The locking test specimen of corrugated plating connector is installed in oscillation crosswise experimental machine, and applies pre- clamping force；
Start the oscillation crosswise experimental machine to load to the locking test specimen of corrugated plating connector, and records the ripple
The size and vibration number of the clamping force of the locking test specimen of plate connector, until clamping force closes the transverse direction when reaching predetermined value
Vibration experiment machine；
The locking test specimen of corrugated plating connector of several groups different model is selected, above-mentioned each test procedure is repeated；
Repairing experiment data draw vibration number and clamping force for the locking test specimen of the corrugated plating connector of different model
Relationship change curve graph, and compare and analyze, to obtain the anti-loosening performance of the locking test specimen of corrugated plating connector.
2. test method according to claim 1, which is characterized in that the oscillation crosswise experimental machine connects the corrugated plating
The load vibration frequency of the locking test specimen of fitting uses the range of 1.5-15Hz according to the actual frequency of train vibration.
3. test method according to claim 1, which is characterized in that the locking test specimen of corrugated plating connector described in every group includes
At least 10.
4. according to claim 1 to test method described in any one of 3, which is characterized in that the corrugated plating connector uses
Bolt (121) and nut (122), and the specification that the bolt uses is M16-M30.
5. according to claim 1 to test method described in any one of 3, which is characterized in that make the corrugated plating connector
When locking test specimen, lubricant is added on the junction and supporting surface of the corrugated plating and the corrugated plating connector.
6. according to claim 1 to test method described in any one of 3, which is characterized in that using torque-indicating wrench to institute
It states the locking test specimen of corrugated plating connector and applies pre- clamping force, the locking test specimen of corrugated plating connector is installed to the transverse direction
On vibration experiment machine.
7. according to claim 1 to test method described in any one of 3, which is characterized in that the corrugated plating connector is locking
Corrugated plating described in monolithic in test specimen with a thickness of in the range of the 3mm-12mm.
8. test method according to claim 4, which is characterized in that be equipped between the bolt and the corrugated plating recessed
Shape gasket (123).
9. test method according to claim 8, which is characterized in that be equipped between the nut and the corrugated plating convex
Shape gasket (124).
10. test method according to claim 9, which is characterized in that between the bolt and the spill gasket, with
And lock washer (125) are equipped between the nut and the convex gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910650361.3A CN110487521A (en) | 2019-07-18 | 2019-07-18 | For testing the test method of the anti-loosening performance of corrugated plating connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910650361.3A CN110487521A (en) | 2019-07-18 | 2019-07-18 | For testing the test method of the anti-loosening performance of corrugated plating connector |
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| CN110487521A true CN110487521A (en) | 2019-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910650361.3A Pending CN110487521A (en) | 2019-07-18 | 2019-07-18 | For testing the test method of the anti-loosening performance of corrugated plating connector |
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Cited By (1)
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| CN114112266A (en) * | 2021-11-22 | 2022-03-01 | 广州广电计量检测股份有限公司 | Method and device for measuring anti-loosening performance of fastener assembly |
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