CN110186667A - A kind of disc spring endurance testing system and method - Google Patents
A kind of disc spring endurance testing system and method Download PDFInfo
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- CN110186667A CN110186667A CN201910629866.1A CN201910629866A CN110186667A CN 110186667 A CN110186667 A CN 110186667A CN 201910629866 A CN201910629866 A CN 201910629866A CN 110186667 A CN110186667 A CN 110186667A
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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
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
- G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
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- Aviation & Aerospace Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
It includes central controller, relay latching circuit, solenoid valve, cylinder, durable rack and counter that the embodiment of the present application, which discloses a kind of disc spring endurance testing system and method, the system,.Wherein, central controller is connected to relay latching circuit by single-way switch, and relay latching circuit, solenoid valve and cylinder are sequentially connected, and durable rack is for placing disc spring.When carrying out endurance test to disc spring using disclosed system, relay latching circuit compresses disc spring by the piston of solenoid valve control cylinder back and forth, when the actual frequency for compressing disc spring reaches preset compression number, central controller terminates to test, if actual frequency not up to compresses number, then central controller terminates test when the deformation quantity for judging disc spring is more than preset acceptable threshold.Disc spring endurance testing system disclosed in the present application is capable of the deformation quantity of real-time monitoring disc spring, and stops test when the deformation quantity of disc spring is more than permissible range, saves the time, effectively improves test efficiency.
Description
Technical field
This application involves spring detection technique field more particularly to a kind of disc spring endurance testing system and methods.
Background technique
Disc spring is butterfly spring that is a kind of tapered in the axial direction and bearing load.Disc spring is simple with structure, rigidity is big
And highly-safe advantage, it is industrial to be widely used in heavy-duty machinery, aircraft, automobile etc. frequently as strength buffering and damping device
Field.In use due to disc spring, what is be subject to is alternate stress repeatedly, therefore after using certain number, dish
Spring will be damaged and even be broken.In order to ensure the reliability of disc spring in use, need using it is preceding to disc spring into
The fatigue life of disc spring is tested in row endurance test.
Mostly it is the positive and negative rotation using motor currently, carrying out endurance test to disc spring, simple compression behaviour is carried out to disc spring
Make.After reaching preset compression number, off-test.After the test, disc spring is judged by observing the deformation quantity of disc spring
Fatigue life, if the deformation quantity of disc spring exceed permissible range, then it represents that the fatigue life of disc spring is unsatisfactory for requiring.
But inventor has found in the research process of the application, traditional durability test apparatus is only capable of completing in test
Later, the deformation quantity of disc spring is observed, and during the test, once deformation quantity exceeds permissible range, due to durability test apparatus
Can not real-time monitoring disc spring deformation quantity, test still will continue to, in this case, it will greatly waste time, reduce test
Efficiency.
Summary of the invention
In order to solve the problems, such as that traditional disc spring durability test apparatus wastes time in test, reduces detection efficiency,
Application discloses a kind of disc spring endurance testing system and method by following embodiment.
The application is in a first aspect, disclose a kind of disc spring endurance testing system, comprising: the self-locking electricity of central controller 1, relay
Road 2, solenoid valve 3, cylinder 4, durable rack 5 and counter 6；
The central controller 1 is connected to the relay latching circuit 2, the self-locking electricity of relay by single-way switch
Road 2, the solenoid valve 3 and the cylinder 4 are sequentially connected；
For the durable rack 5 for placing disc spring 7, the piston 8 of the cylinder 4 is correspondingly arranged at the top of the disc spring 7；
The test parameters is sent to the relay for obtaining preset test parameters by the central controller 1
Device latching circuit 2, the test parameters include when compressing the retarded closing of number, compression frequency, the relay latching circuit 2
Between the delay turn-off time of section and the relay latching circuit 2 section；
The relay latching circuit 2 was used within the retarded closing period, controlled the solenoid valve 3 to the gas
The on-off pulse signal of the sending specific frequency of cylinder 4；In the preset delay turn-off time section, controls the solenoid valve 3 and stop
It only works, wherein the specific frequency is consistent with the compression frequency；
The cylinder 4 is used to control the piston 8 according to the on-off pulse signal according to the compression frequency and carry out back pressure
Contract the disc spring 7；
The cylinder 4 is connected with the central controller 1, and the central controller 1 is also used to piston 8 described in real-time monitoring
Stroke, obtain the stroke variable quantity of the piston 8, and according to the stroke variable quantity of the piston 8, obtain the disc spring 7
Deformation quantity；
The counter 6 is connected with the solenoid valve 3, and the counter 6 for acquiring the on-off pulse letter in real time
Number, and according to the on-off pulse signal, obtain the actual frequency that the piston 8 compresses the disc spring 7 back and forth, and by the reality
At border number Real-time Feedback to the central controller 1；
The central controller 1 is also used to judge whether the actual frequency is greater than or equal to the compression number, is sentencing
Disconnected result is when being, the central controller 1 is also used to disconnect the single-way switch, terminates test；
When the judging result is no, the central controller 1 is also used to judge whether the deformation quantity of the disc spring 7 is big
In or equal to preset acceptable threshold；
When the deformation quantity of the disc spring 7 is greater than or equal to the preset acceptable threshold, the central controller 1 is used for
The single-way switch is disconnected, test is terminated.
Optionally, the system also includes air pressure regulator 9, the air pressure regulator 9 includes digital display type air gauge
And air pressure regulator, the air pressure regulator 9 are respectively connected to the central controller 1 and the cylinder 4；
The air pressure regulator 9 is used under the control of the central controller 1, adjusts the pressure of the cylinder 4, into
And adjust the power that the piston 8 compresses the disc spring 7 back and forth；
The air pressure regulator 9 is also used to the pressure of cylinder 4 described in real-time monitoring, and the pressure of the cylinder 4 is anti-
It is fed at the central controller 1.
Optionally,
The air pressure regulator 9 is also used to before endurance test starts, under the control of the central controller 1,
Adjust the precompressed value of the cylinder 4.
Optionally, the durable rack 5 includes mounting bracket 50 and installation sleeve 51, and the mounting bracket 50 is for solid
The fixed installation sleeve 51, the top of the installation sleeve 51 offers the cavity 510 for placing the disc spring 7；
The piston 8 is arranged at the top end opening of the cavity 510, positioned at the top of the disc spring 7.
Optionally, the mounting bracket 50 includes first baffle 501, second baffle 502, third baffle 503 and the 4th
Baffle 504；
The third baffle 503 is transversely mounted between the first baffle 501 and the second baffle 502；
The fourth gear plate 504 is transversely mounted between the first baffle 501 and the second baffle 502；
The fourth gear plate 504 is located at the lower section of the third baffle 503；
The installation sleeve 51 is fixed on the fourth gear plate 504, and the cylinder 4 is fixed on the third baffle 503
On, the piston 8 passes through the third baffle 503, is arranged at the top end opening of the cavity 510.
Optionally, the system also includes power supply units；
The power supply unit be used for for the central controller 1, the relay latching circuit 2, the solenoid valve 3 and
The counter 6 provides electric energy.
The application second aspect, discloses a kind of disc spring endurance test method, and the method is applied to the application first party
Disc spring endurance testing system disclosed in face, which comprises
Central controller 1 obtains preset test parameters, and the test parameters is sent to relay latching circuit 2,
The test parameters includes compressing number, compression frequency, retarded closing period of the relay latching circuit 2 and described
The delay turn-off time section of relay latching circuit 2；
Within the retarded closing period, control solenoid valve 3 issues specific the relay latching circuit 2 to cylinder 4
The on-off pulse signal of frequency；In the preset delay turn-off time section, controls the solenoid valve 3 and stops working, wherein
The specific frequency is consistent with the compression frequency；
The cylinder 4 controls piston 8 according to the compression frequency and compresses disc spring 7 back and forth according to the on-off pulse signal；
The stroke of piston 8 described in 1 real-time monitoring of central controller obtains the stroke variable quantity of the piston 8, and root
According to the stroke variable quantity of the piston 8, the deformation quantity of the disc spring 7 is obtained；Counter 6 acquires the on-off pulse letter in real time
Number, and according to the on-off pulse signal, obtain the actual frequency that the piston 8 compresses the disc spring 7 back and forth, and by the reality
At border number Real-time Feedback to the central controller 1；
The central controller 1 judges whether the actual frequency is greater than or equal to the compression number, if judging result
Be it is yes, then the central controller 1 disconnects single-way switch, terminates test；
If the judging result be it is no, the central controller 1 judges whether the deformation quantity of the disc spring 7 is greater than or waits
In preset acceptable threshold；
If the deformation quantity of the disc spring 7 is greater than or equal to the preset acceptable threshold, the central controller 1 is disconnected
The single-way switch terminates test.
Optionally, the method also includes:
Air pressure regulator 9 adjusts the pressure of the cylinder 4 under the central controller 1 control, and then described in adjustment
Piston 8 compresses the power of the disc spring 7 back and forth；
The pressure of cylinder 4 described in 9 real-time monitoring of air pressure regulator, and by the pressure feedback of the cylinder 4 to institute
It states at central controller 1.
Optionally, before endurance test starts, the method also includes:
The air pressure regulator 9 adjusts the precompressed value of the cylinder 4 under the central controller 1 control.
The embodiment of the present application discloses a kind of disc spring endurance testing system and method, the system include central controller, after
Electric appliance latching circuit, solenoid valve, cylinder, durable rack and counter.Wherein, central controller is connected to by single-way switch
Relay latching circuit, relay latching circuit, solenoid valve and cylinder are sequentially connected, and cylinder is connected with central controller, are counted
Device is connected with solenoid valve, and for durable rack for placing disc spring, the piston of cylinder is correspondingly arranged at the top of disc spring.Utilizing this Shen
Please disclosed system when carrying out endurance test to disc spring, relay latching circuit controls solenoid valve within the retarded closing period
On-off pulse signal is issued to cylinder, the piston of cylinder is made to compress disc spring back and forth, when the actual frequency of compression disc spring reaches default
Compression number when, central controller terminates to test, if actual frequency not up to compresses number, central controller judging
When the deformation quantity of disc spring is more than preset acceptable threshold, terminate test.A kind of disc spring endurance testing system disclosed in the present application and
Method is capable of the deformation quantity of real-time monitoring disc spring during the test, and in the deformation of disc spring compared to traditional experimental rig
When amount is more than permissible range, stop test, effectively save test period improves test efficiency.
In addition, disc spring endurance testing system disclosed in the embodiment of the present application, it can be in advance to test by central controller
Compression number and compression frequency in the process is configured, and improves the controllability of system.Also, during the test, lead to
Cross the actual frequency that central controller obtains current compression disc spring in real time, the deformation quantity of real-time monitoring disc spring and compression disc spring
Power can provide comprehensive, accurate test data to judge the fatigue life of disc spring.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is a kind of structural schematic diagram of disc spring endurance testing system disclosed in the embodiment of the present application；
Fig. 2 is the structural schematic diagram of another kind disc spring endurance testing system disclosed in the embodiment of the present application；
Fig. 3 is the structural schematic diagram of durable rack in a kind of disc spring endurance testing system disclosed in the embodiment of the present application；
Fig. 4 is a kind of workflow schematic diagram of disc spring endurance test method disclosed in the embodiment of the present application.
Specific embodiment
In order to solve the problems, such as that traditional disc spring durability test apparatus wastes time in test, reduces detection efficiency,
Application discloses a kind of disc spring endurance testing system and method by following embodiment.
The application first embodiment discloses a kind of disc spring endurance testing system, shown in Figure 1, the system comprises:
Central controller 1, relay latching circuit 2, solenoid valve 3, cylinder 4, durable rack 5 and counter 6.
The central controller 1 is connected to the relay latching circuit 2 by single-way switch.The self-locking electricity of relay
Road 2, the solenoid valve 3 and the cylinder 4 are sequentially connected.
For the durable rack 5 for placing disc spring 7, the piston 8 of the cylinder 4 is correspondingly arranged at the top of the disc spring 7.
Before on-test, a certain number of disc spring test specimens are placed on durable rack 5 by operator, are then closed
Single-way switch is closed, can start to test.During test, operator can artificially terminate to test by disconnecting single-way switch.
The test parameters is sent to the relay for obtaining preset test parameters by the central controller 1
Device latching circuit 2, the test parameters include when compressing the retarded closing of number, compression frequency, the relay latching circuit 2
Between the delay turn-off time of section and the relay latching circuit 2 section.In practical application, operator is in the central controller
Input preset test parameters.
Relay latching circuit 2 just starts to test after the test parameters for receiving central controller transmission.The relay
Device latching circuit 2 was used within the retarded closing period, is controlled the solenoid valve 3 to the cylinder 4 and is issued specific frequency
On-off pulse signal；In the preset delay turn-off time section, controls the solenoid valve 3 and stop working, wherein is described
Specific frequency is consistent with the compression frequency.
The cylinder 4 is used to control the piston 8 according to the on-off pulse signal according to the compression frequency and carry out back pressure
Contract the disc spring 7.
Specifically, solenoid valve 3 is constantly in access shape when relay latching circuit 2 is in retarded closing period T1
State, at this moment, cylinder 4 will compress always disc spring under the control of solenoid valve 3 back and forth；Relay latching circuit 2 is in delay and disconnects
When in period T2, solenoid valve 3 is constantly in off state, 4 stopping of cylinder movement.
It, can be according to specific test demand, setting retarded closing period T1 and delay turn-off time section in practical application
The length of T2.When on-test, T1 starts to be delayed, and relay latching circuit was in the retarded closing period, when T1 prolongs
When reaching, T2 starts to be delayed, and relay latching circuit is in delay turn-off time section, when T2, which is delayed, to be reached, relay
Device latching circuit single cycle terminates.At this moment, to enter recirculation mode, then T1 continues to be delayed, repeat above procedure into
The conversion of line delay state.
The cylinder 4 is connected with the central controller 1, and during test, the central controller 1 is also used to supervise in real time
The stroke for surveying the piston 8 obtains the stroke variable quantity of the piston 8, and according to the stroke variable quantity of the piston 8, obtains
The deformation quantity of the disc spring 7.
The stroke of piston refers to distance of the piston from an extreme position to another extreme position.Worked as by comparing piston
Preceding stroke and last stroke, available piston stroke variable quantity, the trip variable quantity is in this compression process
The deformation quantity of disc spring.By the stroke of real-time monitoring piston, the deformation quantity of each second compression disc spring is added up, can be obtained
The total deformation quantity of disc spring.
The counter 6 is connected with the solenoid valve 3, and during test, the counter 6 is for described in acquisition in real time
On-off pulse signal, and according to the on-off pulse signal, the actual frequency that the piston 8 compresses the disc spring 7 back and forth is obtained,
And it will be at the actual frequency Real-time Feedback to the central controller 1.
The central controller 1 is also used to judge whether the actual frequency is greater than or equal to the compression number, is sentencing
Disconnected result is when being, the central controller 1 is also used to disconnect the single-way switch, terminates test.
When the judging result is no, the central controller 1 is also used to judge whether the deformation quantity of the disc spring 7 is big
In or equal to preset acceptable threshold.
When the deformation quantity of the disc spring 7 is greater than or equal to the preset acceptable threshold, the central controller 1 is used for
The single-way switch is disconnected, test is terminated.
The above embodiments of the present application disclose a kind of disc spring endurance testing system, which includes central controller, relay
Device latching circuit, solenoid valve, cylinder, durable rack and counter.Wherein, central controller by single-way switch be connected to after
Electric appliance latching circuit, relay latching circuit, solenoid valve and cylinder are sequentially connected, and cylinder is connected with central controller, counter
It is connected with solenoid valve, for durable rack for placing disc spring, the piston of cylinder is correspondingly arranged at the top of disc spring.Utilizing the application
Disclosed system to disc spring carry out endurance test when, relay latching circuit within the retarded closing period, control solenoid valve to
Cylinder issues on-off pulse signal, and the piston of cylinder is made to compress disc spring back and forth, when the actual frequency of compression disc spring reaches preset
When compressing number, central controller terminates to test, if actual frequency not up to compresses number, central controller is judging dish
When the deformation quantity of spring is more than preset acceptable threshold, terminate test.A kind of disc spring endurance testing system disclosed in the present application, can
During the test, the deformation quantity of real-time monitoring disc spring, and when the deformation quantity of disc spring is more than permissible range, stop test, section
About test period effectively improves detection efficiency.
Further, shown in Figure 2, the system also includes air pressure regulator 9, the air pressure regulator 9 is wrapped
Digital display type air gauge and air pressure regulator are included, the air pressure regulator 9 is respectively connected to the central controller 1 and institute
State cylinder 4.
The air pressure regulator 9 is used under the control of the central controller 1, adjusts the pressure of the cylinder 4, into
And adjust the power that the piston 8 compresses the disc spring 7 back and forth.During actual tests, operator can be controlled by center
Device 1 automatically adjusts the pressure of the cylinder 4, and the pressure of cylinder 4 can also be manually adjusted by air pressure regulator, enhances pilot system
Operability.
The air pressure regulator 9 is also used to the pressure of cylinder 4 described in real-time monitoring, and the pressure of the cylinder 4 is anti-
It is fed at the central controller 1.
Further, the air pressure regulator 9 is also used to before endurance test starts, in the central controller 1
Control under, adjust the precompressed value of the cylinder 4.
Specifically, operator installs a certain number of disc spring test specimens to durable rack 5 before endurance test
On, precompressed value is arranged by central controller, cylinder is made to apply certain pressure to disc spring test specimen, simulates the practical peace of disc spring
State when dress.The size of precompressed value can be arranged according to the quantity of disc spring and test requirements document, in one implementation, can
0.5MPa is set by precompressed value, at this moment, cylinder applies the pressure of about 1200N to disc spring test specimen.
Disc spring endurance testing system disclosed in the embodiment of the present application, by central controller can in advance to test during
Compression number and compression frequency be configured, improve the controllability of test.In addition, during the test, passing through center
Controller obtains the actual frequency of current compression disc spring, the deformation quantity of real-time monitoring disc spring and the power for compressing disc spring, energy in real time
Enough to judge that the fatigue life of disc spring provides comprehensive, accurate test data, necessary reference is provided for the improvement of Disc Spring
Value.
Further, shown in Figure 3, the durable rack 5 includes mounting bracket 50 and installation sleeve 51, the peace
For fixing the installation sleeve 51, the top of the installation sleeve 51 is offered for placing the disc spring 7 dress bracket 50
Cavity 510.
Installation sleeve 51 is bolted in mounting bracket 50, and the size of cavity 510 is set according to the size of disc spring.
In practical application, there are many specifications and models for disc spring, and corresponding installation sleeve can be set multiple.If the disc spring type currently tested
It number changes, installation sleeve can be replaced, cavity is made to be consistent with current disc spring size.
The piston 8 is arranged at the top end opening of the cavity 510 by piston rod, positioned at the upper of the disc spring 7
Side.
Further, the mounting bracket 50 includes first baffle 501, second baffle 502, third baffle 503 and the
Four baffles 504.
The third baffle 503 is transversely mounted between the first baffle 501 and the second baffle 502.
The fourth gear plate 504 is transversely mounted between the first baffle 501 and the second baffle 502.
The fourth gear plate 504 is located at the lower section of the third baffle 503.
The installation sleeve 51 is bolted on the fourth gear plate 504, and the cylinder 4 is fixed on the third
On baffle 503, the piston 8 passes through the third baffle 503, is arranged at the top end opening of the cavity 510.
Further, the system also includes power supply units.
The power supply unit be used for for the central controller 1, the relay latching circuit 2, the solenoid valve 3 and
The counter 6 provides electric energy.
Following is the application embodiment of the method, is applied to the application system embodiment.For in the application embodiment of the method
Undisclosed details please refers to the application system embodiment.
Correspondingly, another embodiment of the application discloses a kind of disc spring endurance test method, the method is applied to this Shen
Please disc spring endurance testing system disclosed in first embodiment, it is shown in Figure 4, which comprises
Step S10, central controller 1 obtains preset test parameters, and the test parameters is sent to relay certainly
Lock circuit 2, the test parameters include compressing the retarded closing period of number, compression frequency, the relay latching circuit 2
And the delay turn-off time section of the relay latching circuit 2.
Step S20, the described relay latching circuit 2 controls solenoid valve 3 to cylinder 4 within the retarded closing period
Issue the on-off pulse signal of specific frequency；In the preset delay turn-off time section, controls the solenoid valve 3 and stop work
Make, wherein the specific frequency is consistent with the compression frequency.
Step S30, the described cylinder 4 controls piston 8 according to the compression frequency and carrys out back pressure according to the on-off pulse signal
Contracting disc spring 7.
Step S40, the stroke of piston 8 described in described 1 real-time monitoring of central controller, the stroke for obtaining the piston 8 become
Change amount, and according to the stroke variable quantity of the piston 8, obtain the deformation quantity of the disc spring 7；Counter 6 acquires described logical in real time
Disconnected pulse signal, and according to the on-off pulse signal, the actual frequency that the piston 8 compresses the disc spring 7 back and forth is obtained, and
At the actual frequency Real-time Feedback to the central controller 1.
Step S50, the described central controller 1 judges whether the actual frequency is greater than or equal to the compression number, if
Judging result be it is yes, then follow the steps the operation of S60, if judging result be it is no, then follow the steps the operation of S70.
Step S60, the described central controller 1 disconnects single-way switch, terminates test.
Step S70, the described central controller 1 judges whether the deformation quantity of the disc spring 7 is greater than or equal to and preset allows
Threshold value if the determination result is YES thens follow the steps the operation of S60, if judging result be it is no, return to step the behaviour of S40
Make.
Further, the method also includes:
Air pressure regulator 9 adjusts the pressure of the cylinder 4 under the central controller 1 control, and then described in adjustment
Piston 8 compresses the power of the disc spring 7 back and forth
The pressure of cylinder 4 described in 9 real-time monitoring of air pressure regulator, and by the pressure feedback of the cylinder 4 to institute
It states at central controller 1.
Further, before endurance test starts, operator installs a certain number of disc spring test specimens to resistance to
On long rack 5, the air pressure regulator 9 is controlled by central controller 1, adjusts the precompressed value of the cylinder 4, simulates disc spring
State when actual installation.
In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real
It is existing.When implemented in software, it can entirely or partly be realized in the form of computer product.The computer program product
Including one or more computer instructions.It is all or part of when loading on computers and executing the computer program instructions
Ground is generated according to process or function described in the embodiment of the present application.The computer can be general purpose computer, special purpose computer,
Computer network or other programmable devices.The computer instruction may be stored in a computer readable storage medium, or
Person is transmitted from a computer readable storage medium to another computer readable storage medium, for example, the computer instruction
Can from a web-site, computer, server or data center by wired or wireless way to another web-site,
Computer, server or data center are transmitted.The computer readable storage medium can be what computer can access
Any usable medium either includes the data storage devices such as one or more usable mediums integrated server, data center.
The usable medium can be magnetic medium, (for example, floppy disk, hard disk, tape), optical medium (for example, DVD) or semiconductor
Medium (such as solid state hard disk) etc..
Combine detailed description and exemplary example that the application is described in detail above, but these explanations are simultaneously
It should not be understood as the limitation to the application.It will be appreciated by those skilled in the art that without departing from the application spirit and scope,
A variety of equivalent substitution, modification or improvements can be carried out to technical scheme and embodiments thereof, these each fall within the application
In the range of.The protection scope of the application is determined by the appended claims.
Claims (9)
1. a kind of disc spring endurance testing system characterized by comprising central controller (1), relay latching circuit (2), electricity
Magnet valve (3), cylinder (4), durable rack (5) and counter (6)；
The central controller (1) is connected to the relay latching circuit (2) by single-way switch, the self-locking electricity of relay
Road (2), the solenoid valve (3) and the cylinder (4) are sequentially connected；
For the durable rack (5) for placing disc spring (7), the piston (8) of the cylinder (4) is correspondingly arranged at the disc spring (7)
Top；
The test parameters is sent to the relay for obtaining preset test parameters by the central controller (1)
Latching circuit (2), the test parameters include the retarded closing of compression number, compression frequency, the relay latching circuit (2)
Period and the delay turn-off time of the relay latching circuit (2) section；
The relay latching circuit (2) was used within the retarded closing period, controlled the solenoid valve (3) to the gas
The on-off pulse signal of cylinder (4) sending specific frequency；In the preset delay turn-off time section, the solenoid valve is controlled
(3) it stops working, wherein the specific frequency is consistent with the compression frequency；
The cylinder (4) is used to control the piston (8) according to the on-off pulse signal according to the compression frequency and carry out back pressure
The disc spring that contracts (7)；
The cylinder (4) is connected with the central controller (1), and the central controller (1) is also used to living described in real-time monitoring
The stroke for filling in (8) obtains the stroke variable quantity of the piston (8), and according to the stroke variable quantity of the piston (8), obtains institute
State the deformation quantity of disc spring (7)；
The counter (6) is connected with the solenoid valve (3), and the counter (6) for acquiring the on-off pulse in real time
Signal, and according to the on-off pulse signal, the actual frequency that the piston (8) compresses the disc spring (7) back and forth is obtained, and will
At the actual frequency Real-time Feedback to the central controller (1)；
The central controller (1) is also used to judge whether the actual frequency is greater than or equal to the compression number, is judging
As a result for when being, the central controller (1) is also used to disconnect the single-way switch, terminate test；
When the judging result is no, the central controller (1) is also used to judge whether the deformation quantity of the disc spring (7) is big
In or equal to preset acceptable threshold；
When the deformation quantity of the disc spring (7) is greater than or equal to the preset acceptable threshold, the central controller (1) is used for
The single-way switch is disconnected, test is terminated.
2. system according to claim 1, which is characterized in that the system also includes air pressure regulator (9), the gas
Pressure regulating device (9) includes digital display type air gauge and air pressure regulator, and the air pressure regulator (9) is respectively connected to described
Central controller (1) and the cylinder (4)；
The air pressure regulator (9) is used under the control of the central controller (1), adjusts the pressure of the cylinder (4),
And then adjust the power that the piston (8) compresses the disc spring (7) back and forth；
The air pressure regulator (9) is also used to the pressure of cylinder described in real-time monitoring (4), and by the pressure of the cylinder (4)
It feeds back at the central controller (1).
3. system according to claim 2, which is characterized in that
The air pressure regulator (9) is also used to before endurance test starts, under the control of the central controller (1),
Adjust the precompressed value of the cylinder (4).
4. system according to claim 1, which is characterized in that the durable rack (5) include mounting bracket (50) and
Installation sleeve (51), the mounting bracket (50) is for fixing the installation sleeve (51), the top of the installation sleeve (51)
Offer the cavity (510) for placing the disc spring (7)；
The piston (8) is arranged at the top end opening of the cavity (510), is located at the top of the disc spring (7).
5. system according to claim 4, which is characterized in that the mounting bracket (50) includes first baffle (501),
Two baffles (502), third baffle (503) and fourth gear plate (504)；
The third baffle (503) is transversely mounted between the first baffle (501) and the second baffle (502)；
The fourth gear plate (504) is transversely mounted between the first baffle (501) and the second baffle (502)；
The fourth gear plate (504) is located at the lower section of the third baffle (503)；
The installation sleeve (51) is fixed on the fourth gear plate (504), and the cylinder (4) is fixed on the third baffle
(503) on, the piston (8) passes through the third baffle (503), is arranged at the top end opening of the cavity (510).
6. system according to claim 1, which is characterized in that the system also includes: power supply unit；
The power supply unit be used for for the central controller (1), the relay latching circuit (2), the solenoid valve (3) with
And the counter (6) provides electric energy.
7. a kind of disc spring endurance test method, which is characterized in that the method is applied to as described in any one of claim 1 to 6
Disc spring endurance testing system, which comprises
Central controller (1) obtains preset test parameters, and the test parameters is sent to relay latching circuit (2),
The test parameters includes compression number, compression frequency, the retarded closing period of the relay latching circuit (2) and institute
State the delay turn-off time section of relay latching circuit (2)；
Within the retarded closing period, control solenoid valve (3) issues special the relay latching circuit (2) to cylinder (4)
Determine the on-off pulse signal of frequency；In the preset delay turn-off time section, controls the solenoid valve (3) and stops working,
Wherein, the specific frequency is consistent with the compression frequency；
The cylinder (4) controls piston (8) according to the compression frequency and compresses disc spring back and forth according to the on-off pulse signal
(7)；
The stroke of piston (8) described in central controller (1) real-time monitoring, obtains the stroke variable quantity of the piston (8), and
According to the stroke variable quantity of the piston (8), the deformation quantity of the disc spring (7) is obtained；Counter (6) acquires the on-off in real time
Pulse signal, and according to the on-off pulse signal, the actual frequency that the piston (8) compresses the disc spring (7) back and forth is obtained,
And it will be at the actual frequency Real-time Feedback to the central controller (1)；
The central controller (1) judges whether the actual frequency is greater than or equal to the compression number, if judging result is
It is that then the central controller (1) disconnects single-way switch, terminates test；
If the judging result be it is no, the central controller (1) judges whether the deformation quantity of the disc spring (7) is greater than or waits
In preset acceptable threshold；
If the deformation quantity of the disc spring (7) is greater than or equal to the preset acceptable threshold, the central controller (1) is disconnected
The single-way switch terminates test.
8. the method according to the description of claim 7 is characterized in that the method also includes:
Under air pressure regulator (9) is controlled in the central controller (1), the pressure of the cylinder (4) is adjusted, and then adjust institute
State the power that piston (8) compresses the disc spring (7) back and forth；
The pressure of cylinder (4) described in air pressure regulator (9) real-time monitoring, and extremely by the pressure feedback of the cylinder (4)
At the central controller (1).
9. according to the method described in claim 8, it is characterized in that, before endurance test starts, the method also includes:
Under the air pressure regulator (9) controls in the central controller (1), the precompressed value of the cylinder (4) is adjusted.
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Cited By (1)
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| CN110186667B (en) | 2021-05-07 |
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