CN110186667B - Disc spring endurance test system and method - Google Patents
Disc spring endurance test system and method Download PDFInfo
- Publication number
- CN110186667B CN110186667B CN201910629866.1A CN201910629866A CN110186667B CN 110186667 B CN110186667 B CN 110186667B CN 201910629866 A CN201910629866 A CN 201910629866A CN 110186667 B CN110186667 B CN 110186667B
- Authority
- CN
- China
- Prior art keywords
- disc spring
- central controller
- piston
- baffle
- test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The embodiment of the application discloses a disc spring endurance test system and method. The central controller is connected to the relay self-locking circuit through the one-way switch, the relay self-locking circuit and the electromagnetic valve are sequentially connected with the air cylinder, and the durable rack is used for placing the disc spring. When the system disclosed by the application is used for carrying out the endurance test on the disc spring, the relay self-locking circuit controls the piston of the air cylinder to compress the disc spring back and forth through the electromagnetic valve, when the actual times of compressing the disc spring reaches the preset compression times, the central controller finishes the test, and if the actual times does not reach the compression times, the central controller finishes the test when judging that the deformation quantity of the disc spring exceeds the preset allowable threshold value. The utility model discloses a dish spring endurance test system can the deformation volume of real-time supervision dish spring to stop the experiment when the deformation volume of dish spring exceedes the tolerance, save time effectively improves test efficiency.
Description
Technical Field
The application relates to the technical field of spring detection, in particular to a disc spring endurance test system and method.
Background
The disc spring is a disc spring that is tapered in the axial direction and bears a load. The disc spring has the advantages of simple structure, high rigidity and high safety, and is often used as a powerful buffering and damping device to be widely applied to the industrial fields of heavy machinery, airplanes, automobiles and the like. Because the disc spring is subjected to repeated alternating stress in the using process, the disc spring can be damaged or even broken after being used for a certain number of times. In order to ensure the reliability of the disc spring in the using process, the disc spring needs to be subjected to an endurance test before use, and the fatigue life of the disc spring is tested.
At present, the disc spring is subjected to an endurance test by mostly utilizing the positive and negative rotation of a motor, and the simple compression operation is carried out on the disc spring. After reaching the preset number of compressions, the test is ended. And after the test is finished, the fatigue life of the disc spring is judged by observing the deformation amount of the disc spring, and if the deformation amount of the disc spring exceeds the allowable range, the fatigue life of the disc spring is not met.
However, in the course of research of the present application, the inventors found that the conventional endurance testing apparatus can only observe the deformation amount of the disc spring after the test is completed, and in the test process, once the deformation amount exceeds the allowable range, the test continues because the endurance testing apparatus cannot monitor the deformation amount of the disc spring in real time, which would greatly waste time and reduce the test efficiency.
Disclosure of Invention
In order to solve the problems of time waste and detection efficiency reduction of a traditional disc spring endurance test device during testing, the application discloses a disc spring endurance test system and method through the following embodiments.
In a first aspect of the present application, a disc spring endurance test system is disclosed, comprising: the device comprises a central controller 1, a relay self-locking circuit 2, an electromagnetic valve 3, a cylinder 4, a durable rack 5 and a counter 6;
the central controller 1 is connected to the relay self-locking circuit 2 through a one-way switch, and the relay self-locking circuit 2, the electromagnetic valve 3 and the cylinder 4 are sequentially connected;
the durable rack 5 is used for placing a disc spring 7, and a piston 8 of the air cylinder 4 is correspondingly arranged above the disc spring 7;
the central controller 1 is configured to obtain preset test parameters and send the test parameters to the relay self-locking circuit 2, where the test parameters include compression times, compression frequency, a delay closing time period of the relay self-locking circuit 2, and a delay opening time period of the relay self-locking circuit 2;
the relay self-locking circuit 2 is used for controlling the electromagnetic valve 3 to send on-off pulse signals with specific frequency to the air cylinder 4 in the delayed closing time period; controlling the electromagnetic valve 3 to stop working within the preset delay disconnection time period, wherein the specific frequency is consistent with the compression frequency;
the air cylinder 4 is used for controlling the piston 8 to compress the disc spring 7 back and forth according to the compression frequency according to the on-off pulse signal;
the cylinder 4 is connected with the central controller 1, and the central controller 1 is further configured to monitor the stroke of the piston 8 in real time, obtain a stroke variation of the piston 8, and obtain a deformation amount of the disc spring 7 according to the stroke variation of the piston 8;
the counter 6 is connected with the electromagnetic valve 3, and the counter 6 is used for acquiring the on-off pulse signal in real time, acquiring the actual times of the piston 8 compressing the disc spring 7 back and forth according to the on-off pulse signal, and feeding back the actual times to the central controller 1 in real time;
the central controller 1 is further configured to determine whether the actual number of times is greater than or equal to the number of times of compression, and when the determination result is yes, the central controller 1 is further configured to disconnect the one-way switch, and end the test;
when the judgment result is negative, the central controller 1 is further configured to judge whether the deformation amount of the disc spring 7 is greater than or equal to a preset allowable threshold;
and when the deformation amount of the disc spring 7 is greater than or equal to the preset allowable threshold value, the central controller 1 is used for disconnecting the one-way switch and ending the test.
Optionally, the system further comprises an air pressure adjusting device 9, the air pressure adjusting device 9 comprises a digital display type air pressure gauge and an air pressure adjusting valve, and the air pressure adjusting device 9 is respectively connected to the central controller 1 and the air cylinder 4;
the air pressure adjusting device 9 is used for adjusting the pressure of the air cylinder 4 under the control of the central controller 1, so as to adjust the force of the piston 8 for compressing the disc spring 7 back and forth;
the air pressure adjusting device 9 is also used for monitoring the pressure of the air cylinder 4 in real time and feeding the pressure of the air cylinder 4 back to the central controller 1.
Alternatively to this, the first and second parts may,
the air pressure adjusting device 9 is also used for adjusting the pre-pressure value of the air cylinder 4 under the control of the central controller 1 before the endurance test is started.
Optionally, the durable rack 5 includes a mounting bracket 50 and a mounting sleeve 51, the mounting bracket 50 is used for fixing the mounting sleeve 51, and a cavity 510 for placing the disc spring 7 is opened at the upper part of the mounting sleeve 51;
the piston 8 is arranged at the top end opening of the cavity 510 and is positioned above the disc spring 7.
Optionally, the mounting bracket 50 includes a first baffle 501, a second baffle 502, a third baffle 503 and a fourth baffle 504;
the third baffle 503 is transversely installed between the first baffle 501 and the second baffle 502;
the fourth baffle 504 is transversely installed between the first baffle 501 and the second baffle 502;
the fourth baffle 504 is located below the third baffle 503;
the mounting sleeve 51 is fixed on the fourth baffle 504, the cylinder 4 is fixed on the third baffle 503, and the piston 8 passes through the third baffle 503 and is disposed at the top opening of the cavity 510.
Optionally, the system further includes: a power supply device;
the power supply device is used for supplying electric energy to the central controller 1, the relay self-locking circuit 2, the electromagnetic valve 3 and the counter 6.
In a second aspect of the present application, a disc spring endurance test method is disclosed, which is applied to the disc spring endurance test system disclosed in the first aspect of the present application, and the method includes:
the method comprises the steps that a central controller 1 obtains preset test parameters and sends the test parameters to a relay self-locking circuit 2, wherein the test parameters comprise compression times, compression frequency, a delay closing time period of the relay self-locking circuit 2 and a delay opening time period of the relay self-locking circuit 2;
the relay self-locking circuit 2 controls the electromagnetic valve 3 to send on-off pulse signals with specific frequency to the cylinder 4 in the delayed closing time period; controlling the electromagnetic valve 3 to stop working within the preset delay disconnection time period, wherein the specific frequency is consistent with the compression frequency;
the air cylinder 4 controls the piston 8 to compress the disc spring 7 back and forth according to the compression frequency according to the on-off pulse signal;
the central controller 1 monitors the stroke of the piston 8 in real time, obtains the stroke variation of the piston 8, and obtains the deformation of the disc spring 7 according to the stroke variation of the piston 8; the counter 6 collects the on-off pulse signals in real time, obtains the actual times of the piston 8 compressing the disc spring 7 back and forth according to the on-off pulse signals, and feeds the actual times back to the central controller 1 in real time;
the central controller 1 judges whether the actual times are greater than or equal to the compression times, if so, the central controller 1 disconnects the one-way switch, and the test is ended;
if the judgment result is negative, the central controller 1 judges whether the deformation quantity of the disc spring 7 is greater than or equal to a preset allowable threshold value;
if the deformation amount of the disc spring 7 is greater than or equal to the preset allowable threshold value, the central controller 1 turns off the one-way switch, and the test is ended.
Optionally, the method further includes:
the air pressure adjusting device 9 adjusts the pressure of the air cylinder 4 under the control of the central controller 1, so as to adjust the force of the piston 8 for compressing the disc spring 7 back and forth;
the air pressure adjusting device 9 monitors the pressure of the air cylinder 4 in real time and feeds the pressure of the air cylinder 4 back to the central controller 1.
Optionally, before the endurance test is started, the method further comprises:
the air pressure adjusting device 9 adjusts the pre-pressure value of the air cylinder 4 under the control of the central controller 1.
The embodiment of the application discloses a disc spring endurance test system and method. The central controller is connected to the relay self-locking circuit through the one-way switch, the relay self-locking circuit and the electromagnetic valve are sequentially connected with the air cylinder, the air cylinder is connected with the central controller, the counter is connected with the electromagnetic valve, the durable rack is used for placing the disc spring, and the piston of the air cylinder is correspondingly arranged above the disc spring. When the system disclosed by the application is used for carrying out an endurance test on the disc spring, the relay self-locking circuit controls the electromagnetic valve to send an on-off pulse signal to the cylinder in a delay closing time period to enable the piston of the cylinder to compress the disc spring back and forth, when the actual times of compressing the disc spring reach the preset compression times, the central controller finishes the test, and if the actual times do not reach the compression times, the central controller finishes the test when judging that the deformation quantity of the disc spring exceeds the preset allowable threshold value. Compared with the traditional test device, the disc spring endurance test system and the disc spring endurance test method can monitor the deformation amount of the disc spring in real time in the test process, and stop the test when the deformation amount of the disc spring exceeds the allowable range, so that the test time is effectively saved, and the test efficiency is improved.
In addition, the disc spring endurance test system disclosed in the embodiment of the application can set the compression times and the compression frequency in the test process in advance through the central controller, so that the controllability of the system is improved. In addition, in the test process, the actual times of compressing the disc spring at present are obtained in real time through the central controller, the deformation quantity of the disc spring and the force of compressing the disc spring are monitored in real time, and comprehensive and accurate test data can be provided for judging the fatigue life of the disc spring.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a disc spring endurance testing system disclosed in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of another disk spring endurance testing system disclosed in an embodiment of the present application;
fig. 3 is a schematic structural diagram of a durable bench in a disc spring durability test system disclosed in an embodiment of the present application;
fig. 4 is a schematic workflow diagram of a disc spring endurance test method disclosed in an embodiment of the present application.
Detailed Description
In order to solve the problems of time waste and detection efficiency reduction of a traditional disc spring endurance test device during testing, the application discloses a disc spring endurance test system and method through the following embodiments.
A first embodiment of the present application discloses a disc spring endurance testing system, as shown in fig. 1, the system including: the device comprises a central controller 1, a relay self-locking circuit 2, an electromagnetic valve 3, a cylinder 4, a durable stand 5 and a counter 6.
The central controller 1 is connected to the relay self-locking circuit 2 through a one-way switch. The relay self-locking circuit 2, the electromagnetic valve 3 and the air cylinder 4 are sequentially connected.
The durable stand 5 is used for placing a disc spring 7, and a piston 8 of the air cylinder 4 is correspondingly arranged above the disc spring 7.
Before the test is started, an operator places a certain number of disc spring test samples on the durable stand 5, and then closes the one-way switch, so that the test can be started. In the test process, an operator can manually finish the test by disconnecting the one-way switch.
The central controller 1 is configured to obtain preset test parameters and send the test parameters to the relay self-locking circuit 2, where the test parameters include compression times, compression frequency, a delay closing time period of the relay self-locking circuit 2, and a delay opening time period of the relay self-locking circuit 2. In practical application, an operator inputs preset test parameters in the central controller.
The relay self-locking circuit 2 starts the test after receiving the test parameters sent by the central controller. The relay self-locking circuit 2 is used for controlling the electromagnetic valve 3 to send on-off pulse signals with specific frequency to the air cylinder 4 in the delayed closing time period; and controlling the electromagnetic valve 3 to stop working within the preset delay disconnection time period, wherein the specific frequency is consistent with the compression frequency.
And the air cylinder 4 is used for controlling the piston 8 to compress the disc spring 7 back and forth according to the compression frequency according to the on-off pulse signal.
Specifically, when the relay self-locking circuit 2 is in the delay closing time period T1, the electromagnetic valve 3 is always in the passage state, and at this time, the air cylinder 4 is controlled by the electromagnetic valve 3 to compress the disc spring back and forth all the time; when the relay self-locking circuit 2 is in the delayed off period T2, the solenoid valve 3 is always in the off state, and the cylinder 4 stops operating.
In practical applications, the lengths of the delayed closing time period T1 and the delayed opening time period T2 may be set according to specific test requirements. When the test is started, the T1 begins to delay, the relay self-locking circuit is in a delay closing time period, when the T1 delay reaches, the T2 begins to delay, the relay self-locking circuit is in a delay opening time period, and when the T2 delay reaches, the single cycle of the relay self-locking circuit is finished. At this time, if the repetitive cycle mode is to be entered, T1 continues to delay, and the above process is repeated to perform the delay state transition.
The air cylinder 4 is connected with the central controller 1, and in the test process, the central controller 1 is further used for monitoring the stroke of the piston 8 in real time, acquiring the stroke variation of the piston 8 and acquiring the deformation of the disc spring 7 according to the stroke variation of the piston 8.
The stroke of the piston refers to the distance of the piston from one extreme position to the other extreme position. By comparing the current stroke with the previous stroke of the piston, the stroke variation of the piston can be obtained, and the stroke variation is the deformation of the disc spring in the compression process. By monitoring the stroke of the piston in real time, the deformation quantity of each compression of the disc spring is accumulated, and the total deformation quantity of the disc spring can be obtained.
The counter 6 is connected with the electromagnetic valve 3, and in the test process, the counter 6 is used for collecting the on-off pulse signals in real time, acquiring the actual times of the piston 8 compressing the disc spring 7 back and forth according to the on-off pulse signals, and feeding back the actual times to the central controller 1 in real time.
The central controller 1 is further configured to determine whether the actual number of times is greater than or equal to the number of times of compression, and when the determination result is yes, the central controller 1 is further configured to disconnect the one-way switch, and end the test.
And when the judgment result is negative, the central controller 1 is further configured to judge whether the deformation amount of the disc spring 7 is greater than or equal to a preset allowable threshold value.
And when the deformation amount of the disc spring 7 is greater than or equal to the preset allowable threshold value, the central controller 1 is used for disconnecting the one-way switch and ending the test.
The above-mentioned embodiment of this application discloses a dish spring endurance test system, and this system includes central controller, relay self-locking circuit, solenoid valve, cylinder, durable rack and counter. The central controller is connected to the relay self-locking circuit through the one-way switch, the relay self-locking circuit and the electromagnetic valve are sequentially connected with the air cylinder, the air cylinder is connected with the central controller, the counter is connected with the electromagnetic valve, the durable rack is used for placing the disc spring, and the piston of the air cylinder is correspondingly arranged above the disc spring. When the system disclosed by the application is used for carrying out an endurance test on the disc spring, the relay self-locking circuit controls the electromagnetic valve to send an on-off pulse signal to the cylinder in a delay closing time period to enable the piston of the cylinder to compress the disc spring back and forth, when the actual times of compressing the disc spring reach the preset compression times, the central controller finishes the test, and if the actual times do not reach the compression times, the central controller finishes the test when judging that the deformation quantity of the disc spring exceeds the preset allowable threshold value. The utility model discloses a dish spring endurance test system can be in the testing process, the deformation volume of real-time supervision dish spring to when the deformation volume of dish spring exceedes the tolerance, the stop test practices thrift test time, effectively improves detection efficiency.
Further, referring to fig. 2, the system further includes an air pressure adjusting device 9, the air pressure adjusting device 9 includes a digital air pressure gauge and an air pressure adjusting valve, and the air pressure adjusting device 9 is connected to the central controller 1 and the air cylinder 4, respectively.
The air pressure adjusting device 9 is used for adjusting the pressure of the air cylinder 4 under the control of the central controller 1, and further adjusting the force of the piston 8 for compressing the disc spring 7 back and forth. In the actual test process, an operator can automatically adjust the pressure of the air cylinder 4 through the central controller 1, and can also manually adjust the pressure of the air cylinder 4 through the air pressure adjusting valve, so that the operability of the test system is enhanced.
The air pressure adjusting device 9 is also used for monitoring the pressure of the air cylinder 4 in real time and feeding the pressure of the air cylinder 4 back to the central controller 1.
Further, the air pressure adjusting device 9 is also used for adjusting the pre-pressure value of the air cylinder 4 under the control of the central controller 1 before the endurance test is started.
Specifically, before endurance test, operating personnel install a certain amount of dish spring test sample to durable rack 5 on, set up the pre-compaction value through central controller, make the cylinder exert certain pressure to dish spring test sample, the state when simulation dish spring is actually installed. The magnitude of the pre-compression value can be set according to the number of disc springs and the test requirements, and in one implementation, the pre-compression value can be set to 0.5MPa, and at this time, the air cylinder applies pressure of about 1200N to the disc spring test sample.
The disc spring endurance test system disclosed by the embodiment of the application can be used for setting the compression times and the compression frequency in the test process in advance through the central controller, so that the test controllability is improved. In addition, in the test process, the central controller is used for acquiring the actual times of compressing the disc spring in real time, monitoring the deformation quantity of the disc spring and the force of compressing the disc spring in real time, providing comprehensive and accurate test data for judging the fatigue life of the disc spring and providing necessary reference value for improving the disc spring product.
Further, referring to fig. 3, the durable platform 5 includes a mounting bracket 50 and a mounting sleeve 51, the mounting bracket 50 is used for fixing the mounting sleeve 51, and a cavity 510 for placing the disc spring 7 is opened at the upper portion of the mounting sleeve 51.
The mounting sleeve 51 is fixed on the mounting bracket 50 by bolts, and the size of the cavity 510 is set according to the size of the disc spring. In practical application, the disc spring has a plurality of specifications and types, and a plurality of corresponding mounting sleeves can be arranged. If the disc spring model of current test changes, can change the installation sleeve, make the cavity accord with current disc spring size.
The piston 8 is arranged at the top opening of the cavity 510 through a piston connecting rod and is positioned above the disc spring 7.
Further, the mounting bracket 50 includes a first baffle 501, a second baffle 502, a third baffle 503, and a fourth baffle 504.
The third baffle 503 is transversely installed between the first baffle 501 and the second baffle 502.
The fourth baffle 504 is transversely installed between the first baffle 501 and the second baffle 502.
The fourth baffle 504 is located below the third baffle 503.
The mounting sleeve 51 is fixed on the fourth baffle 504 through a bolt, the cylinder 4 is fixed on the third baffle 503, and the piston 8 passes through the third baffle 503 and is arranged at an opening at the top end of the cavity 510.
Further, the system further comprises: and a power supply device.
The power supply device is used for supplying electric energy to the central controller 1, the relay self-locking circuit 2, the electromagnetic valve 3 and the counter 6.
The following are embodiments of the method of the present application, as applied to embodiments of the system of the present application. For details which are not disclosed in the method embodiments of the present application, reference is made to the system embodiments of the present application.
Accordingly, another embodiment of the present application discloses a disc spring endurance test method, which is applied to the disc spring endurance test system disclosed in the first embodiment of the present application, and as shown in fig. 4, the method includes:
step S10, the central controller 1 obtains preset test parameters and sends the test parameters to the relay self-locking circuit 2, wherein the test parameters comprise compression times, compression frequency, delay closing time period of the relay self-locking circuit 2 and delay opening time period of the relay self-locking circuit 2.
Step S20, the relay self-locking circuit 2 controls the electromagnetic valve 3 to send on-off pulse signals with specific frequency to the cylinder 4 in the delay closing time period; and controlling the electromagnetic valve 3 to stop working within the preset delay disconnection time period, wherein the specific frequency is consistent with the compression frequency.
And step S30, controlling the piston 8 to compress the disc spring 7 back and forth according to the compression frequency by the cylinder 4 according to the on-off pulse signal.
Step S40, the central controller 1 monitors the stroke of the piston 8 in real time, obtains the stroke variation of the piston 8, and obtains the deformation amount of the disc spring 7 according to the stroke variation of the piston 8; the counter 6 collects the on-off pulse signals in real time, obtains the actual times of the piston 8 compressing the disc spring 7 back and forth according to the on-off pulse signals, and feeds the actual times back to the central controller 1 in real time.
In step S50, the central controller 1 determines whether the actual number of times is greater than or equal to the number of times of compression, if so, performs the operation in step S60, and if not, performs the operation in step S70.
And step S60, the central controller 1 disconnects the one-way switch, and the test is ended.
In step S70, the central controller 1 determines whether the amount of deformation of the disc spring 7 is greater than or equal to a preset allowable threshold, if so, performs the operation in step S60, and if not, returns to perform the operation in step S40.
Further, the method further comprises:
the air pressure adjusting device 9 adjusts the pressure of the air cylinder 4 under the control of the central controller 1, and further adjusts the force of the piston 8 for compressing the disc spring 7 back and forth
The air pressure adjusting device 9 monitors the pressure of the air cylinder 4 in real time and feeds the pressure of the air cylinder 4 back to the central controller 1.
Further, before the endurance test is started, an operator mounts a certain number of disc spring test samples on the endurance rack 5, controls the air pressure adjusting device 9 through the central controller 1, adjusts the pre-pressing value of the air cylinder 4, and simulates the actual mounting state of the disc spring.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire or wirelessly. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid state disk), among others.
The present application has been described in detail with reference to specific embodiments and illustrative examples, but the description is not intended to limit the application. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the presently disclosed embodiments and implementations thereof without departing from the spirit and scope of the present disclosure, and these fall within the scope of the present disclosure. The protection scope of this application is subject to the appended claims.
Claims (8)
1. A disc spring endurance testing system, comprising: the device comprises a central controller (1), a relay self-locking circuit (2), an electromagnetic valve (3), a cylinder (4), a durable rack (5) and a counter (6);
the central controller (1) is connected to the relay self-locking circuit (2) through a one-way switch, and the relay self-locking circuit (2) and the electromagnetic valve (3) are sequentially connected with the cylinder (4);
the durable rack (5) is used for placing a disc spring (7), and a piston (8) of the cylinder (4) is correspondingly arranged above the disc spring (7);
the durable rack (5) comprises a mounting bracket (50) and a mounting sleeve (51), the mounting bracket (50) is used for fixing the mounting sleeve (51), and the upper part of the mounting sleeve (51) is provided with a cavity (510) for placing the disc spring (7);
the piston (8) is arranged at the opening at the top end of the cavity (510) and is positioned above the disc spring (7);
the central controller (1) is used for acquiring preset test parameters and sending the test parameters to the relay self-locking circuit (2), wherein the test parameters comprise compression times, compression frequency, delay closing time periods of the relay self-locking circuit (2) and delay opening time periods of the relay self-locking circuit (2);
the relay self-locking circuit (2) is used for controlling the electromagnetic valve (3) to send on-off pulse signals with specific frequency to the cylinder (4) in the delayed closing time period; controlling the electromagnetic valve (3) to stop working within the preset delay disconnection time period, wherein the specific frequency is consistent with the compression frequency;
the air cylinder (4) is used for controlling the piston (8) to compress the disc spring (7) back and forth according to the compression frequency according to the on-off pulse signal;
the air cylinder (4) is connected with the central controller (1), the central controller (1) is further used for monitoring the stroke of the piston (8) in real time, acquiring the stroke variation of the piston (8), and acquiring the deformation of the disc spring (7) according to the stroke variation of the piston (8);
the counter (6) is connected with the electromagnetic valve (3), and the counter (6) is used for acquiring the on-off pulse signal in real time, acquiring the actual times of the piston (8) for compressing the disc spring (7) back and forth according to the on-off pulse signal, and feeding back the actual times to the central controller (1) in real time;
the central controller (1) is further used for judging whether the actual times are greater than or equal to the compression times, and when the judgment result is yes, the central controller (1) is further used for disconnecting the one-way switch to finish the test;
when the judgment result is negative, the central controller (1) is also used for judging whether the deformation quantity of the disc spring (7) is larger than or equal to a preset allowable threshold value;
and when the deformation amount of the disc spring (7) is greater than or equal to the preset allowable threshold value, the central controller (1) is used for disconnecting the one-way switch and ending the test.
2. The system according to claim 1, characterized in that it further comprises an air pressure regulating device (9), said air pressure regulating device (9) comprising a digital display type air pressure gauge and an air pressure regulating valve, said air pressure regulating device (9) being connected to said central controller (1) and to said air cylinder (4), respectively;
the air pressure adjusting device (9) is used for adjusting the pressure of the air cylinder (4) under the control of the central controller (1), and further adjusting the force of the piston (8) for compressing the disc spring (7) back and forth;
the air pressure adjusting device (9) is also used for monitoring the pressure of the air cylinder (4) in real time and feeding the pressure of the air cylinder (4) back to the central controller (1).
3. The system of claim 2,
the air pressure adjusting device (9) is also used for adjusting the prepressing value of the air cylinder (4) under the control of the central controller (1) before the endurance test is started.
4. The system of claim 1, wherein the mounting bracket (50) comprises a first baffle (501), a second baffle (502), a third baffle (503), and a fourth baffle (504);
the third baffle (503) is transversely mounted between the first baffle (501) and the second baffle (502);
the fourth baffle (504) is transversely mounted between the first baffle (501) and the second baffle (502);
the fourth baffle (504) is positioned below the third baffle (503);
the mounting sleeve (51) is fixed on the fourth baffle (504), the cylinder (4) is fixed on the third baffle (503), and the piston (8) penetrates through the third baffle (503) and is arranged at an opening at the top end of the cavity (510).
5. The system of claim 1, further comprising: a power supply device;
the power supply device is used for providing electric energy for the central controller (1), the relay self-locking circuit (2), the electromagnetic valve (3) and the counter (6).
6. A disc spring endurance testing method applied to the disc spring endurance testing system according to any one of claims 1 to 5, the method comprising:
the method comprises the following steps that a central controller (1) obtains preset test parameters and sends the test parameters to a relay self-locking circuit (2), wherein the test parameters comprise compression times, compression frequency, delay closing time period of the relay self-locking circuit (2) and delay opening time period of the relay self-locking circuit (2);
the relay self-locking circuit (2) controls the electromagnetic valve (3) to send on-off pulse signals with specific frequency to the cylinder (4) in the delayed closing time period; controlling the electromagnetic valve (3) to stop working within the preset delay disconnection time period, wherein the specific frequency is consistent with the compression frequency;
the air cylinder (4) controls the piston (8) to compress the disc spring (7) back and forth according to the compression frequency according to the on-off pulse signal;
the central controller (1) monitors the stroke of the piston (8) in real time, obtains the stroke variation of the piston (8), and obtains the deformation of the disc spring (7) according to the stroke variation of the piston (8); the counter (6) collects the on-off pulse signals in real time, obtains the actual times of the piston (8) compressing the disc spring (7) back and forth according to the on-off pulse signals, and feeds the actual times back to the central controller (1) in real time;
the central controller (1) judges whether the actual times are greater than or equal to the compression times, if so, the central controller (1) disconnects the one-way switch, and the test is ended;
if the judgment result is negative, the central controller (1) judges whether the deformation quantity of the disc spring (7) is larger than or equal to a preset allowable threshold value;
and if the deformation amount of the disc spring (7) is greater than or equal to the preset allowable threshold value, the central controller (1) disconnects the one-way switch, and the test is finished.
7. The method of claim 6, further comprising:
the air pressure adjusting device (9) adjusts the pressure of the air cylinder (4) under the control of the central controller (1), and further adjusts the force of the piston (8) for compressing the disc spring (7) back and forth;
the air pressure adjusting device (9) monitors the pressure of the air cylinder (4) in real time and feeds the pressure of the air cylinder (4) back to the central controller (1).
8. The method of claim 7, further comprising, prior to the beginning of the endurance test:
the air pressure adjusting device (9) adjusts the pre-pressing value of the air cylinder (4) under the control of the central controller (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910629866.1A CN110186667B (en) | 2019-07-12 | 2019-07-12 | Disc spring endurance test system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910629866.1A CN110186667B (en) | 2019-07-12 | 2019-07-12 | Disc spring endurance test system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110186667A CN110186667A (en) | 2019-08-30 |
| CN110186667B true CN110186667B (en) | 2021-05-07 |
Family
ID=67725675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910629866.1A Expired - Fee Related CN110186667B (en) | 2019-07-12 | 2019-07-12 | Disc spring endurance test system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110186667B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237643B (en) * | 2021-04-16 | 2023-01-17 | 中广核核电运营有限公司 | Disc spring online monitoring system and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU868420A1 (en) * | 1976-11-12 | 1981-09-30 | Всесоюзный научно-исследовательский проектно-технологический институт вагоностроения | Stand for testing for fatigue strength and durability of rail-way rolling stock overspring beam |
| CN105716765A (en) * | 2016-02-01 | 2016-06-29 | 西安交通大学 | Force measuring device and method capable of changing magnitude of applied force continuously |
| CN106546157A (en) * | 2016-12-23 | 2017-03-29 | 国网江苏省电力公司检修分公司 | A kind of circuit breaker operation mechanism intelligent online monitoring device and method |
| CN107843501A (en) * | 2017-10-20 | 2018-03-27 | 成都理工大学 | Rockmass fractures monitoring device and system |
| CN207421194U (en) * | 2017-09-14 | 2018-05-29 | 黄山立铖精密弹簧有限公司 | A kind of changeable section compression spring |
| CN207730432U (en) * | 2017-12-14 | 2018-08-14 | 浙江兰菱机械有限公司 | The adjustable spring fatigue test machine of deformation quantity |
| CN208704932U (en) * | 2018-09-03 | 2019-04-05 | 无锡奥维达科技有限公司 | A kind of test machine of test buffer bounce |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1250879A1 (en) * | 1984-01-30 | 1986-08-15 | Московский Ордена Ленина И Ордена Октябрьской Революции Авиационный Институт Им.Серго Орджоникидзе | Device for service-life testing of rolling-contact bearings |
| CN104677611A (en) * | 2013-11-29 | 2015-06-03 | 海洋王（东莞）照明科技有限公司 | Testing circuit and testing device |
| CN204422139U (en) * | 2015-02-09 | 2015-06-24 | 徐桂林 | Fatigue tester for pressure instruments |
| CN105352718A (en) * | 2015-12-08 | 2016-02-24 | 河北太行机械工业有限公司 | Disk spring fatigue test apparatus |
| CN105548875A (en) * | 2016-01-24 | 2016-05-04 | 南京越博动力系统股份有限公司 | Durability test bench for key-type gearshift panel |
| CN206627277U (en) * | 2017-03-30 | 2017-11-10 | 中国核动力研究设计院 | A kind of nuclear power station pipeline damping spring test device |
| CN107860564B (en) * | 2017-09-25 | 2019-10-18 | 广西电网有限责任公司电力科学研究院 | A kind of flaccid state online testing device for high-voltage circuitbreaker operation spring |
-
2019
- 2019-07-12 CN CN201910629866.1A patent/CN110186667B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU868420A1 (en) * | 1976-11-12 | 1981-09-30 | Всесоюзный научно-исследовательский проектно-технологический институт вагоностроения | Stand for testing for fatigue strength and durability of rail-way rolling stock overspring beam |
| CN105716765A (en) * | 2016-02-01 | 2016-06-29 | 西安交通大学 | Force measuring device and method capable of changing magnitude of applied force continuously |
| CN106546157A (en) * | 2016-12-23 | 2017-03-29 | 国网江苏省电力公司检修分公司 | A kind of circuit breaker operation mechanism intelligent online monitoring device and method |
| CN207421194U (en) * | 2017-09-14 | 2018-05-29 | 黄山立铖精密弹簧有限公司 | A kind of changeable section compression spring |
| CN107843501A (en) * | 2017-10-20 | 2018-03-27 | 成都理工大学 | Rockmass fractures monitoring device and system |
| CN207730432U (en) * | 2017-12-14 | 2018-08-14 | 浙江兰菱机械有限公司 | The adjustable spring fatigue test machine of deformation quantity |
| CN208704932U (en) * | 2018-09-03 | 2019-04-05 | 无锡奥维达科技有限公司 | A kind of test machine of test buffer bounce |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110186667A (en) | 2019-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110186667B (en) | Disc spring endurance test system and method | |
| CN100373166C (en) | Device for detecting transformer winding state utilizing sweep frequency power source exciting | |
| US20140260526A1 (en) | Apparatus and Method for Measuring Fixing Force | |
| CN102589891A (en) | Method for estimating endurance life of vehicle motor driving system | |
| CN110940510A (en) | Method for testing opening of high-speed switch valve of automobile braking system | |
| CN109188303B (en) | Quick charging system test method, equipment and storage medium | |
| CN106813993B (en) | Fatigue test component state monitoring method based on sound-ultrasound and sound emission technology | |
| CN109683647A (en) | A kind of prestressing force automatic tensioning control system and method | |
| CN109375610B (en) | Test system and test method for control unit of urban rail vehicle frame control | |
| CN101907521B (en) | Test system and evaluation method of passenger car door-closing slam | |
| CN112611963A (en) | Relay accelerated storage degradation experiment parameter testing and analyzing system and testing method | |
| CN201876393U (en) | Hydraulic fatigue test system for engine body | |
| CN211347366U (en) | High-speed switch valve opening test system of automobile brake system | |
| CN111025050A (en) | Current response time testing device and method for automobile electromagnetic valve | |
| CN103616288B (en) | A kind of vertical levels combination loading test macro and loading method of testing thereof | |
| CN112284660B (en) | Bent torsion composite load test device of bent axle | |
| CN210953669U (en) | Direct shear apparatus of controllable closely knit degree | |
| CN111581715A (en) | Method for quickly compressing acceleration load spectrum of tractor part | |
| CN204944930U (en) | A kind of concrete component is pulled and supported lotus loading frame | |
| CN203929903U (en) | Test table | |
| CN111982519B (en) | Method, device and equipment for detecting abnormal sound of gasoline engine and storage medium | |
| CN213022685U (en) | High-temperature high-low cycle composite fatigue test system | |
| CN212301826U (en) | Automobile wire harness terminal test fixture | |
| CN109115486B (en) | Unmanned aerial vehicle engine oil gas shock absorber static pressure testing arrangement | |
| CN207998280U (en) | Electric vehicle gear box detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210507 |