CN115371868A - Device and method for monitoring storage test torque of elastic element - Google Patents

Device and method for monitoring storage test torque of elastic element Download PDF

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Publication number
CN115371868A
CN115371868A CN202210775448.5A CN202210775448A CN115371868A CN 115371868 A CN115371868 A CN 115371868A CN 202210775448 A CN202210775448 A CN 202210775448A CN 115371868 A CN115371868 A CN 115371868A
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China
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elastic element
torque
support frame
base
adapter plate
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CN115371868B (en
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赵朋飞
曹晓蕾
秦强
李晋鹏
徐如远
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CASIC Defense Technology Research and Test Center
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CASIC Defense Technology Research and Test Center
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0057Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to spring-shaped elements

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  • General Physics & Mathematics (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

The application provides a device and a method for monitoring storage test torque of an elastic element, wherein the device comprises: a base; the first support frame is provided with a first installation position which is axially parallel to the base; the second support frame is provided with a first through hole which is axially parallel to the base, a bearing is embedded in the first through hole, and a second joint is embedded in the bearing; an adapter plate is arranged on one surface, far away from the first support frame, of the second support frame, and the adapter plate is connected with the second joint; a locking structure is arranged on the switching disc; the third support frame is provided with a third installation position which is axially parallel to the base; the third mounting location, the first mounting location and the second joint are coaxial. The device and the method for monitoring the torque of the elastic element storage test have the advantages that the structure is simple, the operation is simple and convenient, the actual installation and torsion states of the elastic element are simulated, the torque parameters of the elastic element in the long-term storage state can be monitored, and the test reliability is improved.

Description

Device and method for monitoring storage test torque of elastic element
Technical Field
The application relates to the technical field of elastic element detection, in particular to an elastic element storage test torque monitoring device and method.
Background
The rudder system is equipped with elastic elements for storing and releasing elastic strain energy, such as torsion sheet assemblies, torsion bars, compression springs and the like, wherein when the rudder system is folded, the elastic elements store torque strain energy through torsional deformation, and when the rudder system is in use, the elastic elements drive the rudder system structure to be unfolded to a corresponding position through releasing the torque strain energy. The rudder system following device needs to be kept in a folded and locked working state all the time during long-term storage, i.e. the driving elastic elements, such as the torsion sheet assembly, are in a torsion and torque load state. For the torsion piece assembly, the torsion angle or the deformation of the torsion piece assembly is always kept unchanged in the storage process, the stress relaxation process takes a leading position in the torsion piece torque degradation process, the stored torque and the elastic deformation of the torsion piece can be gradually reduced, and after a certain period of time, the residual torque can not drive the rudder system structure to normally unfold, so that the equipment can not be normally used, and even fatal danger can occur. Therefore, it is necessary to monitor the torque parameters of the elastic element of the rudder system in a long-term storage state, and the existing torque monitoring device cannot simulate the actual installation and torsion states of the elastic element and cannot meet the test requirements of a storage test.
Disclosure of Invention
In view of the above, the present application is directed to a torque monitoring device and method for elastic device storage test to solve the above-mentioned problems.
In a first aspect of the present application, there is provided a resilient element storage test torque monitoring device comprising: a base; the first support frame is positioned on the base, a first installation position axially parallel to the base is arranged on the first support frame, and the first installation position is detachably connected with one end of the elastic element; the second support frame is positioned on the base, a first through hole which is axially parallel to the base is formed in the second support frame, a bearing is embedded in the first through hole, a second joint is embedded in the bearing, and the second joint is detachably connected with the other end of the elastic element; an adapter plate is arranged on one surface, far away from the first support frame, of the second support frame, and the adapter plate is connected with the second joint so that the adapter plate can rotate around the axis of the bearing; a locking structure is arranged on the switching disk so that the switching disk is locked on the second support frame; one surface of the adapter disc, which is far away from the first support frame, is detachably connected with one end of the torque sensor; the third support frame is positioned on the base, and is provided with a third installation position axially parallel to the base, and the third installation position is detachably connected with the other end of the torque sensor; the third mounting location, the first mounting location and the second joint are coaxial.
Furthermore, the first support frame, the second support frame and the third support frame are respectively connected with the base in a sliding manner.
Furthermore, the side surface of the adapter plate is detachably connected with a handle.
Furthermore, the locking structure comprises a locking pin, a second through hole which is axially parallel to the base is formed in the switching disc, a positioning hole which is axially parallel to the base is formed in the second supporting frame, and the locking pin is matched with the second through hole and the positioning hole.
Furthermore, one end of the elastic element is connected with the first mounting position through a pin shaft, and the other end of the elastic element is connected with the second joint through a key slot; one end of the torque sensor is connected with the adapter plate through a screw, and the other end of the torque sensor is connected with the third installation position through a screw.
Further, the first mounting position comprises a third through hole axially parallel to the base, the third through hole being fitted with an end of the elastic element; the first support frame further comprises a positioning pin, and the positioning pin is matched with the fourth through hole and the fifth through hole.
In a second aspect of the present application, there is provided an elastic element storage test torque monitoring method using the elastic element storage test torque monitoring apparatus according to the first aspect, the elastic element storage test torque monitoring method including: placing the elastic element storage test torque monitoring device in a storage environment; connecting the elastic element to the first mounting position and the second joint, twisting the elastic element to a preset angle by rotating the adapter disc, and locking the adapter disc on the second support frame through the locking structure; after the preset storage time, connecting the torque sensor to the adapter plate and the third mounting position, unlocking the locking structure, and monitoring the torque value of the elastic element through the torque sensor; and the adapter plate is locked on the second support frame through the locking structure, and the torque sensor is detached.
Further, the preset storage time is plural, and the torque value includes an initial torque value and a stored torque value.
Further, the method for monitoring the storage test torque of the elastic element further comprises the following steps: and performing function fitting on the torque value and the preset storage time to obtain a torque-time relation equation.
Further, the method for monitoring the storage test torque of the elastic element further comprises the following steps: and disassembling the elastic element to perform metallographic treatment to obtain a metallographic image.
From the above, the present application provides a torque monitoring device and method for storage test of elastic element, which comprises a base for bearing the torque monitoring device; the first support frame and the second support frame are used for bearing the elastic element, one end of the elastic element can be detachably connected with the first installation position and keeps fixed, the other end of the elastic element can be detachably connected with the second joint, the second joint is embedded into the bearing and can rotate, the torque angle of the elastic element is adjusted, the torque state of the elastic element is simulated, the first support frame and the second support frame can simulate parts at two ends of the elastic element when the elastic element is installed, and the cost is reduced; the adapter plate is arranged to be connected with the second connector, the torque angle of the elastic element is adjusted by rotating the adapter plate to adjust the angle, and the adapter plate can be locked on the second support frame by arranging the locking structure, so that the torque state of the elastic element is fixed; the second support frame and the third support frame are arranged for bearing the torque sensor, one end of the torque sensor is detachably connected with the third installation position and is kept fixed, the other end of the torque sensor is detachably connected with the adapter plate, the adapter plate is connected with the second connector, the torque sensor can test the torque value of the elastic element after the locking structure is unlocked and meets the test requirement, the torque sensor can be detached after the locking structure is locked, and the elastic element continues to maintain the corresponding torque state for storage and is not interfered, so that the torque sensor can be installed only during testing and is separated from the monitoring device within the interval time of the storage test, the actual installation and the torsion state of the elastic element are not damaged while the test requirement of the storage test is met, and the torque sensor is prevented from being broken after being continuously used for a long time; the third mounting position, the first mounting position and the second joint are coaxial, so that the accuracy of the measured torque value is ensured; the device and the method for monitoring the torque of the elastic element in the storage test have the advantages that the structure is simple, the operation is simple and convenient, the actual installation and torsion states of the elastic element are simulated, the torque parameters of the elastic element in the long-term storage state can be monitored, so that the torque degradation rule, the stress relaxation failure mechanism and the like of the elastic element can be known, reference is provided for the long-term storage environment adaptability design and the service life prediction of a rudder system, the torque state of the elastic element cannot be interfered when the torque sensor is disassembled, and the test reliability is improved.
Drawings
In order to more clearly illustrate the technical solutions in the present application or the related art, the drawings needed to be used in the description of the embodiments or the related art will be briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a side view of a resilient element storage test torque monitoring apparatus according to an embodiment of the present application;
FIG. 2 is a schematic external view of an elastic element storage test torque monitoring device according to an embodiment of the present disclosure;
FIG. 3 is a schematic cross-sectional view of an embodiment of a torque monitoring device for a storage test of a flexible member;
fig. 4 is a schematic flow chart illustrating a method for monitoring torque of a storage test of an elastic element according to an embodiment of the present disclosure.
Reference numerals: 1. a base; 2. a first support frame; 2-1, a first installation position; 2-1-1, a third through hole; 2-1-2, a fourth through hole; 2-2, positioning pins; 3. a second support frame; 3-1, a first through hole; 3-2, a bearing; 3-3, a second joint; 3-4, switching the disc; 3-5, a locking structure; 3-5-1, locking pin; 3-5-2, a second through hole; 3-6, a handle; 3-7, positioning holes; 4. a third support frame; 4-1, a third installation position; 5. an elastic element; 6. a torque sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to the accompanying drawings in combination with specific embodiments.
It should be noted that technical terms or scientific terms used in the embodiments of the present application should have a general meaning as understood by those having ordinary skill in the art to which the present application belongs, unless otherwise defined. The use of "first," "second," and similar terms in the embodiments of the present application is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The rudder system is equipped with elastic elements for storing and releasing elastic strain energy, such as a torsion sheet assembly, a torsion bar, a pressure spring and the like, when the rudder system is in a folded state, the elastic elements store torque strain energy through torsional deformation, and when the rudder system is in a use process, the elastic elements drive the rudder system structure to be unfolded to corresponding positions through releasing the torque strain energy.
The rudder system following device needs to be kept in a folded and locked working state all the time during long-term storage, i.e. the driving elastic elements, such as the torsion sheet assembly, are in a torsion and torque load state. Most materials undergo irreversible creep effects or stress relaxation effects even under normal temperature conditions, as long as they undergo sufficiently long loading, resulting in increased plastic strain deformation or reduced loading force.
For the torsion piece assembly, the torsion angle or the deformation of the torsion piece assembly is always kept unchanged in the storage process, the stress relaxation process occupies a dominant position in the torsion piece torsion degradation process, the stored torsion and elastic deformation of the torsion piece can be gradually reduced, and after a certain age, the residual torsion probably cannot drive the rudder system structure to be normally unfolded, so that the equipment cannot be normally used, and even fatal danger is generated.
Therefore, it is very necessary to monitor the torque parameters of the elastic element of the rudder system in a long-term storage state, so as to know the torque degradation rule, the stress relaxation failure mechanism and the like of the elastic element, and provide reference for the adaptive design of the long-term storage environment and the prediction of the service life of the rudder system. The existing torque monitoring device cannot simulate the actual installation and torsion states of the elastic element and can not meet the test requirements of long-term storage tests.
The existing torque monitoring device usually fixes one end of an elastic element, and connects the other end with a torque sensor, when a storage test is carried out, the torque sensor is always connected with the elastic element, and the storage test is usually carried out for a long time, such as 5 years, 10 years and the like, so that the continuous monitoring cost is high, the stress relaxation of the elastic element is interfered, the reliability of the storage test is reduced, and particularly when the torque sensor breaks down and is detached and repaired, the torque state of the elastic element is damaged, and the storage test cannot be carried out.
The in-process discovery of realizing this application can consider to set up three support frame, and first support frame and second support frame are used for simulating elastic element's storage state, set up switching structure on the second support frame, and switching structure and third support frame are used for demountable installation torque sensor, and torque sensor can only install when the test like this, and separates with monitoring devices in the interval time of storage test, when satisfying the experimental test requirement of storage, does not destroy elastic element actual installation and torsion state again.
Hereinafter, the technical solution of the present application will be described in detail by specific examples with reference to fig. 1 to 4.
In some embodiments of the present application, there is provided a resilient element storage test torque monitoring device, as shown in fig. 1-3, comprising: a base 1; the first support frame 2 is positioned on the base 1, a first installation position 2-1 axially parallel to the base 1 is arranged on the first support frame 2, and the first installation position 2-1 is detachably connected with one end of an elastic element 5; the second support frame 3 is positioned on the base 1, a first through hole 3-1 axially parallel to the base 1 is formed in the second support frame 3, a bearing 3-2 is embedded in the first through hole 3-1, a second joint 3-3 is embedded in the bearing 3-2, and the second joint 3-3 is detachably connected with the other end of the elastic element 5; an adapter plate 3-4 is arranged on one surface, far away from the first support frame 2, of the second support frame 3, and the adapter plate 3-4 is connected with the second joint 3-3, so that the adapter plate 3-4 rotates around the axis of the bearing 3-2; a locking structure 3-5 is arranged on the adapter disc 3-4, so that the adapter disc 3-4 is locked on the second support frame 3; one surface of the adapter plate 3-4, which is far away from the first support frame 2, is detachably connected with one end of a torque sensor 6; the third support frame 4 is positioned on the base 1, a third installation position 4-1 axially parallel to the base 1 is arranged on the third support frame 4, and the third installation position 4-1 is detachably connected with the other end of the torque sensor 6; the third installation position 4-1, the first installation position 2-1 and the second joint 3-3 are coaxial.
Through setting up base 1, bear the weight of torque monitoring devices, base 1 is the steel sheet for example, and is not specifically restricted.
As shown in fig. 1, the elastic element 5 is, for example, a torsion piece assembly, made of TM210A steel, and the two side connection ends are made of alloy steel, which is not limited in detail.
The first support frame 2 and the second support frame 3 are used for bearing the elastic element 5, and one end of the elastic element 5 can be detachably connected with the first installation position 2-1 and is kept fixed; the other end of the elastic element can be detachably connected with a second joint 3-3, and the second joint 3-3 is embedded into a bearing 3-2 and can rotate so as to adjust the torque angle of the elastic element 5 and simulate the torque state of the elastic element 5; the first support frame 2 and the second support frame 3 can simulate parts at two ends when the elastic element 5 is installed, and cost is reduced.
The adapter plate 3-4 is arranged to be connected with the second connector 3-3, the angle is adjusted by rotating the adapter plate 3-4, the torque angle of the elastic element 5 is adjusted, and the locking structure 3-5 is arranged to enable the adapter plate 3-4 to be locked on the second support frame 3, so that the torque state of the elastic element 5 is fixed.
The torque sensor 6 is, for example, a model JN-DN2, and is not particularly limited, and is configured to measure a torque value of the elastic element 5.
The second support frame 3 and the third support frame 4 are arranged for bearing the torque sensor 6, and one end of the torque sensor 6 is detachably connected with the third installation position 4-1 and is kept fixed; the other end of the locking mechanism is detachably connected with the adapter plate 3-4, the adapter plate 3-4 is connected with the second connector 3-3, and the torque sensor 6 can test the torque value of the elastic element 5 after the locking structure 3-5 is unlocked, so that the test requirement is met; after the locking structures 3-5 are locked, the torque sensor 6 can be detached, the elastic element 5 continues to maintain the corresponding torque state for storage, and the interference is avoided, so that the torque sensor 6 can be installed only during testing, and is separated from the monitoring device within the interval time of the storage test, the actual installation and torsion states of the elastic element 5 are not damaged while the testing requirements of the storage test are met, the fault caused by long-term continuous use of the torque sensor 6 is also avoided, and the unloading of the torque of the elastic element 5 is avoided, so that the test is interrupted or failed.
As shown in FIG. 3, the third installation position 4-1, the first installation position 2-1 and the second joint 3-3 are arranged coaxially, so that the torque state of the elastic element 5 is not disturbed, and the accuracy of the measured torque value is ensured.
The torque monitoring device for the storage test of the elastic element is simple in structure and convenient to operate, simulates the actual installation and torsion states of the elastic element 5, can monitor the torque parameters of the elastic element 5 in the long-term storage state so as to know the torque degradation rule, the stress relaxation failure mechanism and the like of the elastic element 5, provides reference for the long-term storage environment adaptability design and the life prediction of a rudder system, cannot interfere with the torque state of the elastic element 5 when the torque sensor 6 is disassembled, and improves the test reliability; the device can be carried to a specific environment of a target area to carry out a test, and movable monitoring and measurement across different areas are realized.
In some embodiments, as shown in fig. 2, the first support frame 2, the second support frame 3 and the third support frame 4 are respectively connected with the base 1 in a sliding manner.
As shown in fig. 2, the base 1 is provided with a chute, and the bottoms of the three support frames are provided with slide blocks matched with the chute, so that the support frames slide on the chute; screws are further arranged on the three support frames, and the support frames are fixed on the sliding grooves through locking screws; the first support frame 2, the second support frame 3 and the third support frame 4 are arranged to be respectively connected with the base 1 in a sliding mode, so that the universality of the monitoring device can be improved; different test pieces can be installed by adjusting the relative positions of the first support frame 2 and the second support frame 3; by adjusting the relative positions of the second support frame 3 and the third support frame 4, different sensors can be installed, and different storage tests can be compatible.
In some embodiments, as shown in FIG. 2, a handle 3-6 is removably attached to a side of the adapter plate 3-4.
The handle 3-6 is arranged to conveniently rotate the adapter plate 3-4 to a preset angle, so that the torque angle of the elastic element 5 is adjusted, and the torque state of the elastic element 5 is simulated; the handle 3-6 is detachably connected with the adapter plate 3-4, the handle 3-6 can be detached after the torque angle is adjusted and the adapter plate 3-4 is locked, and the influence of the weight of the handle 3-6 on the torque state of the elastic element 5 is avoided.
In some embodiments, as shown in fig. 3, the locking structure 3-5 includes a locking pin 3-5-1, the adapter plate 3-4 is provided with a second through hole 3-5-2 axially parallel to the base 1, the second support frame 3 is provided with a positioning hole 3-7 axially parallel to the base 1, and the locking pin 3-5-1 is engaged with the second through hole 3-5-2 and the positioning hole 3-7.
The number of the locking structures 3-5 can be multiple, and is not limited specifically, the locking structures are symmetrically arranged along the axis of the bearing 3-2, so that the locking effect of the adapter plate 3-4 on the second support frame 3 is further improved, and the torque state of the elastic element 5 is ensured.
The number of the second through holes 3-5-2 and the number of the positioning holes 3-7 can be multiple, and the locking pin 3-5-1 can lock the adapter plate 3-4 after being inserted into the corresponding second through hole 3-5-2 and the corresponding positioning hole 3-7; after the locking pin 3-5-1 is pulled out of the second through hole 3-5-2 and the positioning hole 3-7, the adapter plate 3-4 can be unlocked.
In some embodiments, one end of the elastic element 5 is connected with the first mounting position 2-1 through a pin shaft, and the other end of the elastic element 5 is connected with the second joint 3-3 through a key slot, so that the elastic element 5 is detachably connected; one end of the torque sensor 6 is connected with the adapter plate 3-4 through a screw, and the other end of the torque sensor 6 is connected with the third mounting position 4-1 through a screw, so that the torque sensor 6 can be detachably connected.
The mounting fit clearance between the resilient element 5 and the torque sensor 6 is sufficiently small to ensure that the resilient element 5 does not deform significantly during storage testing.
In some embodiments, as shown in fig. 3, the first mounting location 2-1 comprises a third through hole 2-1-1 axially parallel to the base 1, the third through hole 2-1-1 cooperating with an end of the elastic element 5; the third through hole 2-1-1 is provided with a fourth through hole 2-1-2 axially perpendicular to the base 1, the end of the elastic element 5 is provided with a fifth through hole, the first support frame 2 further comprises a positioning pin 2-2, and the positioning pin 2-2 is matched with the fourth through hole 2-1-2 and the fifth through hole.
The elastic element 5 can be embedded into the third through hole 2-1-1, and one end of the elastic element 5 can be fixed and prevented from rotating by inserting the positioning pin 2-2 into the fourth through hole 2-1-2 and the fifth through hole; after the positioning pin 2-2 is pulled out of the fourth through hole 2-1-2 and the fifth through hole, the elastic element 5 can be detached.
In some embodiments, the base 1 is provided with a rib or rib.
The reinforcing ribs or the ribbed plates enable the base 1 to bear additional moment and internal stress caused by the torsion of the elastic element 5, no disturbance and deformation are generated, and the stability of a storage test is ensured.
In some embodiments, the torque sensor 6 is electrically connected with a data acquisition instrument, and can acquire a torque value according to a set frequency, wherein the monitoring time is not less than 2h, so that the data accuracy is improved; the data acquisition instrument is electrically connected with a data processing end, the data processing end is a computer, and the data processing end is not limited specifically, and can further analyze torque value data so as to know the torque degradation rule, the stress relaxation failure mechanism and the like of the elastic element 5.
The description of the present application has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the application in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the application and the practical application, and to enable others of ordinary skill in the art to understand the application for various embodiments with various modifications as are suited to the particular use contemplated.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the context of the present application, also features in the above embodiments or in different embodiments may be combined and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of brevity.
Based on the same inventive concept, the present application further provides a method for monitoring torque during storage test of elastic elements, as shown in fig. 4, using the apparatus for monitoring torque during storage test of elastic elements according to any one of the above embodiments, the method comprising the following steps:
s1, placing the elastic element storage test torque monitoring device in a storage environment.
The storage environment is, for example, a typical natural environment of a warehouse, and is not particularly limited, the environment of the warehouse is in a standard atmospheric condition all the year round, the temperature is 15-35 ℃, the environment is generally a relatively closed environment, a small number of channels for exchanging with the outside air are reserved, the characteristics of complexity, variability, coupling and the like are achieved, and the environment condition experienced by the elastic element 5 in the actual storage process is simulated, so that the test result has the advantages of reality, high credibility and the like.
S2, the elastic element 5 is connected to the first mounting position 2-1 and the second connector 3-3, the elastic element 5 is twisted to a preset angle by rotating the adapter disc 3-4, and the adapter disc 3-4 is locked on the second support frame 3 through the locking structure 3-5.
The preset angle is, for example, 30 degrees, 60 degrees, or 90 degrees, and is not particularly limited; the elastic element 5 is mounted on the elastic element storage test torque monitoring device by step S2, and the torque state of the elastic element 5 is simulated.
Further, the step S2 includes connecting the handle 3-6 to the adapter plate 3-4, adjusting the torsion elastic element 5 of the adapter plate 3-4 to a preset angle by rotating the handle 3-6, locking the adapter plate 3-4 on the second support frame 3 through the locking structure 3-5, and detaching the handle 3-6.
The connecting handle 3-6 is convenient for rotating the adapter plate 3-4 to a preset angle, the handle 3-6 can be detached after the torque angle is adjusted and the adapter plate 3-4 is locked, and the influence of the weight of the handle 3-6 on the torque state is avoided.
S3, after the preset storage time, connecting the torque sensor 6 to the adapter plate 3-4 and the third installation position 4-1, unlocking the locking structure 3-5, and monitoring the torque value of the elastic element 5 through the torque sensor 6; and locking the adapter plate 3-4 on the second support frame 3 through the locking structure 3-5, and disassembling the torque sensor 6.
The stress relaxation rate of the elastic element 5 is relatively slow, and the test period setting can be a long-term test of not less than 5 years in order to obtain a relatively obvious torque storage degradation tendency.
The predetermined storage time is, for example, 0 year, 1 year, or 2 years, and is not particularly limited.
The processes of unlocking or locking the locking structures 3-5 and mounting or dismounting the torque sensor 6 cannot generate obvious stress release and deformation recovery, and can better transmit the torque borne by the elastic element 5 to the torque sensor 6, thereby avoiding test interruption or failure. The time for the torque sensor 6 to monitor the torque value of the elastic element 5 is, for example, 2h, and is not limited to the specific time, so as to ensure that the data is accurate and valid.
The torque monitoring of the preset storage time can be completed once through the step S3, and the step S3 can be repeated for a plurality of times according to the monitoring period, which is not limited specifically.
In some embodiments, the preset storage time is a plurality of, and the torque values include an initial torque value and a stored torque value.
The preset storage time may be set to be the gradient storage time in cycles, for example, the storage time of the first monitoring cycle is set to be 0a, 0.5a, 1a, 1.5a, 2a, 2.5a, 3a and 3.5a respectively for 8 times, a is, for example, 1 year, and is not limited specifically; the storage test of the second monitoring period of 4a-10a can be continued to accumulate test data according to the storage life requirement of the elastic element 5.
When the preset storage time is 0, the measured torque value is an initial torque value; and when the preset storage time is more than 0, the measured torque value is a storage torque value.
In some embodiments, as shown in fig. 4, the method for monitoring the storage test torque of the elastic element further comprises:
and S4, performing function fitting on the torque value and the preset storage time to obtain a torque-time relation equation.
The function fitting, such as exponential fitting, power function fitting, and the like, is not particularly limited, and the storage performance or the storage life of the elastic element 5 can be predicted through the obtained torque-time relation equation, for example, the storage time required when the elastic element 5 reaches a given torque critical value can be obtained, and the magnitude of the residual torque value when the elastic element 5 reaches the given storage time can also be obtained, so that data and reference are provided for long-period storage life prediction, comparison of acceleration test results, and correlation analysis of the elastic element 5.
In some embodiments, step S2 is preceded by preparing at least 1 parallel specimen identical to said elastic element 5, and storing the parallel specimen in a dry closed container for easy observation and comparison.
In some embodiments, as shown in fig. 4, the method for monitoring the storage test torque of the elastic element further comprises:
and S5, disassembling the elastic element 5 and carrying out metallographic treatment to obtain a metallographic picture.
The metallographic treatment is carried out on the elastic element 5 after the test by using related test equipment to obtain a gold phase diagram, the gold phase diagram can be compared and analyzed with the gold phase diagram of the elastic element 5 before the test is stored, an internal physical mechanism causing the stress relaxation phenomenon of the elastic element 5 is revealed, the reason of the torque storage degradation of the elastic element 5 is analyzed, and guidance is provided for material selection, process treatment and improved design of the elastic element 5 of the rudder system.
In some embodiments, the method for monitoring the storage test torque of the elastic element further comprises the step of detecting and analyzing the residual deformation or residual stress of the elastic element 5 after the test is finished, so as to obtain the long-period storage deformation amount and the strain rate of the product, and provide a basis for researching the change rule of the long-term storage performance of the product.
It should be noted that the method of this embodiment may be applied to a distributed scenario and completed by cooperation of multiple devices. In this distributed scenario, one device of the multiple devices may only perform one or more steps of the method of the embodiment of the present application, and the multiple devices interact with each other to complete the method.
It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments described above and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the context of the present application, features from the above embodiments or from different embodiments may also be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of brevity.
In addition, well-known power/ground connections to other components may or may not be shown in the figures provided for simplicity of illustration and discussion, and so as not to obscure the embodiments of the application. Furthermore, devices may be shown in block diagram form in order to avoid obscuring embodiments of the application, and this also takes into account the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform within which the embodiments of the application are to be implemented (i.e., specifics should be well within purview of one skilled in the art). Where specific details are set forth in order to describe example embodiments of the application, it will be apparent to one skilled in the art that the embodiments of the application can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative instead of restrictive.
While the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description. The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of the embodiments of the present application are intended to be included within the scope of the present application.

Claims (10)

1. An elastic element storage test torque monitoring device, comprising:
a base;
the first support frame is positioned on the base, a first installation position axially parallel to the base is arranged on the first support frame, and the first installation position is detachably connected with one end of the elastic element;
the second support frame is positioned on the base, a first through hole which is axially parallel to the base is formed in the second support frame, a bearing is embedded in the first through hole, a second joint is embedded in the bearing, and the second joint is detachably connected with the other end of the elastic element; an adapter plate is arranged on one surface, far away from the first support frame, of the second support frame, and the adapter plate is connected with the second joint so that the adapter plate can rotate around the axis of the bearing; a locking structure is arranged on the adapter plate so that the adapter plate is locked on the second support frame; one surface of the adapter disc, which is far away from the first support frame, is detachably connected with one end of the torque sensor;
the third support frame is positioned on the base, and is provided with a third installation position axially parallel to the base, and the third installation position is detachably connected with the other end of the torque sensor; the third mounting location, the first mounting location and the second joint are coaxial.
2. The elastic element storage test torque monitoring device of claim 1, wherein the first support bracket, the second support bracket, and the third support bracket are each slidably connected to the base.
3. The elastic element storage test torque monitoring device of claim 1, wherein a handle is removably attached to a side of the adaptor plate.
4. The elastic element storage test torque monitoring device according to claim 1, wherein the locking structure comprises a locking pin, a second through hole axially parallel to the base is formed in the adapter plate, a positioning hole axially parallel to the base is formed in the second support frame, and the locking pin is matched with the second through hole and the positioning hole.
5. The elastic element storage test torque monitoring device according to claim 1, wherein one end of the elastic element is connected with the first mounting position through a pin shaft, and the other end of the elastic element is connected with the second joint through a key groove; one end of the torque sensor is connected with the adapter plate through a screw, and the other end of the torque sensor is connected with the third installation position through a screw.
6. The elastic element storage test torque monitoring device of claim 5, wherein the first mounting location includes a third through hole axially parallel to the base, the third through hole mating with an end of the elastic element; the first support frame further comprises a positioning pin, and the positioning pin is matched with the fourth through hole and the fifth through hole.
7. A storage test torque monitoring method for an elastic member using the storage test torque monitoring device according to any one of claims 1 to 6, comprising:
placing the elastic element storage test torque monitoring device in a storage environment;
connecting the elastic element to the first mounting position and the second joint, twisting the elastic element to a preset angle by rotating the adapter disc, and locking the adapter disc on the second support frame through the locking structure;
after the preset storage time, connecting the torque sensor to the adapter plate and the third mounting position, unlocking the locking structure, and monitoring the torque value of the elastic element through the torque sensor; and the adapter plate is locked on the second support frame through the locking structure, and the torque sensor is detached.
8. The method of claim 7, wherein the predetermined storage time is a plurality of predetermined storage times, and the torque values include an initial torque value and a stored torque value.
9. The method of monitoring elastic element storage test torque of claim 7, further comprising: and performing function fitting on the torque value and the preset storage time to obtain a torque-time relation equation.
10. The method of monitoring elastic element storage test torque of claim 7, further comprising: and disassembling the elastic element to perform metallographic treatment to obtain a metallographic image.
CN202210775448.5A 2022-07-01 2022-07-01 Elastic element storage test torque monitoring device and method Active CN115371868B (en)

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