CONNECTING ELEMENTS VIBRATION TEST SETUP

Abstract

The invention relates to a vibration test setup used to test and compare the loosening behavior of fasteners under vibration loads. Specifically, the invention relates to a fastener vibration test setup comprising a vertical connection tower (10) forming the rigid reference of the system, a movable piston (20) providing vertical vibration drive, a fixed upper connection bracket (50) and a movable lower connection bracket (60) to which the test specimen is attached, a needle bearing (80) which minimizes lateral friction between these brackets (50, 60) and allows horizontal micro-slips, and a connection seating plate (90) which standardizes the contact resistance of the fastener (70) and acts as a sliding plane, all for the purpose of simulating the loosening behavior of fasteners (70) under vertical vibration loads.

Description

1 TARIFF CONNECTING ELEMENTS VIBRATION TEST SETUP TECHNICAL FIELD The invention relates, in particular, to the relaxation behavior of fasteners under vibration loads. It relates to a vibration testing setup used for testing and comparison purposes. The invention specifically addresses the relaxation of fasteners under vertical vibration loads. In order to simulate its behavior, a vertical structure forming the rigid reference of the system was used. The connecting tower, a movable piston providing vertical vibration drive, 10 of the test specimen It is attached to a fixed upper mounting bracket and a movable lower mounting bracket; these brackets a needle that minimizes lateral friction while allowing horizontal micro-slips Standardizes the contact resistance of bearings and fasteners and acts as a sliding plane. The connection elements, including the mounting plate, are related to the vibration test setup. 15 STATE OF THE ART Fasteners are used in mechanical systems to secure different parts together and to load-bearing components. Nuts are used to ensure the transfer of power and to maintain system integrity. It includes bolts, screws, pins, rivets, washers, clamps, and similar components. (Source 20) The subject is fasteners; automotive, defense industry, rail systems, construction machinery, Widely used in energy systems, household appliances, production lines, and various industrial equipment. It is used as follows: Mechanical systems operate using motors and transmissions. organs, rotating equipment, impact mechanisms, road or ground conditions, and external 25 exposed to vibrations of different frequencies, amplitudes and directions due to environmental influences These vibrations transmit dynamic loads to the connection points, thus affecting the connection. This can affect the working conditions of the employees, therefore the connection Determining and evaluating the behavior of the components under vibration. It is important in the design of mechanical systems. 30 2 To investigate the loosening behavior of fasteners under vibration using current technology. Test systems used for this purpose are mostly powered by electric motors. It is based on horizontal axis vibration motion. The drive motion is in the horizontal direction. implementation, system architecture in which the test setup can be established, and feasible connectivity It limits their configurations. 5 In the current technology, relative movement in the vertical direction is required due to the horizontal drive direction. or the connection to be tested on existing vertical drive systems A compatible test setup for the components cannot be provided. This situation affects different This may require the use of test infrastructure and the existing 10 test setups. This makes integration into systems difficult. In current technology, critical connections such as nuts and bolts are subjected to large forces. representative and comparable examination of the relaxation behaviors of the members It can remain limited. In particular, different types of connectors have specific frequencies and amplitudes of 15. relaxation performances under the values ​​obtained under the same test conditions Observation and evaluation become more difficult. The current technology provides test conditions for different types of parts, nuts, and bolts. Since standardization could not be achieved to a sufficient level, the preparation of the tests, 20 Implementing and comparing the results can take time. Therefore, the connection Obtaining outputs regarding the vibration performance of the components is taking longer; the supplier, Decision-making processes regarding the selection of component or connection solutions can be slow. In conclusion, to solve the aforementioned problems existing in the current technology, 25 The need for a new, economical, and practical vibration testing setup and the existing The inadequacy of the solutions has made it necessary to make improvements in the relevant technical field. 30 3 THE PURPOSE OF THE INVENTION The present invention aims to eliminate the aforementioned disadvantages and contribute to the relevant technical field. Multi-part systems with clamp or screw connections, developed to offer new advantages. 5 specified nut-bolt type fasteners for use in ammunition. Testing relaxation behavior under the influence of vertical vibration at varying frequencies and amplitudes It relates to a vibration testing setup used for the purpose of measuring and comparing vibrations. The main purpose of the invention is to enable the vertical mounting of nuts, bolts and similar fasteners. test 10 of relaxation behavior under vibration motion created in the direction The aim is to ensure that the fasteners are real or nearly real. It becomes possible to evaluate their performance in terms of working conditions. Another important objective of the invention is to create vibrational motion through a movable piston. The aim is to ensure that the transfer of power to the connector being tested is controlled. Thus, 15 Test parameters such as vibration frequency, amplitude, and application time are determined. Repeatable test conditions can be created. Another important purpose of the invention is to connect various nuts, bolts, washers, connecting brackets and the like. The aim is to enable testing of different types of fasteners on the same setup. 20 This allows us to determine the relaxation resistance of different connection solutions under vibration. They can be evaluated comparatively. Another important purpose of the invention is for high-force or critical mechanical connections. Behavior of fasteners used at points under vibration effects 25 The aim is to ensure that the relevant fastener is examined to determine its intended use and... This contributes to determining suitability for working conditions. Another important objective of the invention is to make vibration tests of fasteners more efficient. The goal is to ensure that it is carried out under regular, repeatable, and comparable conditions. 30 4 This situation affects fastener selection, design validation studies, and product development. It facilitates the acquisition of test data that can be used in the processes. Another important objective of the invention is to operate vertically, unlike existing test systems. by creating relative movement, the fasteners are subjected to vibration effects in this direction. The aim is to enable the observation of their performance in different aspects. The effects of vibration loads on fasteners can be analyzed. The structural and characteristic features and all the advantages of the invention are given in the figures below. Thanks to the detailed explanation written with references to these figures, it becomes clearer. 10 This will be understood, and therefore the evaluation should also take these forms and detailed explanations into consideration. It needs to be done by taking precautions. FIGURES THAT WILL HELP UNDERSTAND THE INVENTION FIGURE 1; This is a drawing showing the vibration test setup for the fasteners that are the subject of the invention. 15 FIGURE 2; This is a drawing showing the vibration test setup for the connecting elements that are the subject of the invention. FIGURE 3; The vibration test setup with the connecting elements subject to the invention, in disassembled form. It is a picture that shows. FIGURE 4; Detail of the vibration test setup with connecting elements subject to the invention, disassembled. This is a picture that shows... 20 FIGURE 5; Cross-sectional view of the vibration test setup for the connecting elements subject to the invention. It is a picture that shows. 25 REFERENCE NUMBERS 10th Connection Tower 20. Moving Piston 30. Mounting Brackets 40. Bearing element 5 50. Upper Mounting Bracket 60. Lower Connection Bracket 70. Fasteners 80. Needle Bearing 90. Connection Seat Plate 10 DETAILED DESCRIPTION OF THE INVENTION This detailed description explains the fasteners that are the subject of the invention, which are part of a vibration testing setup. its structure, components, their relationships with each other, and the working principle of the system, 15 In order to better understand the subject and without creating any limiting effects, This is explained only through examples. The design in question, especially the interlocking type or Developed for use in multi-part ammunition with bolted connections, nut- The actual performance of critical fasteners such as bolts under dynamic loads in the vertical axis Modular and 20-page software that reveals relaxation behaviors by simulating working conditions. It is a standardizable electromechanical / hydraulic mechanism. 6 The invention describes the main frame and rigid reference point of the test setup, which is fixed to the system. It forms a vertical connection tower (10) where the parts are assembled. The connection tower (10) allows for the mounting of different heights and configurations. It is a high-strength vertical support element with a series of holes that allow for this. This vertical structure withstands the high-amplitude vibrations and mechanical stresses encountered during testing. It provides a stable test environment by ensuring the damping of resonances. To the test system The key element that provides the necessary dynamic drive, i.e., the vibratory motion, is the moving part. It is a piston (20). The movable piston (20) works on the vertical axis, the applied test Vibration at different frequencies (Hz) and amplitudes (mm) as required by the scenario Drives that convert signals into physical motion, which can be hydraulic or pneumatic based. 10 It is a component. The system is fed vertically from the external drive structures, horizontally. Compared to conventional multi-axis systems (Junker, etc.), the setup takes up much less space. its coating and its ability to be directly integrated into vertical vibration generators (shakers) It provides. 15 The physical interaction between the stationary and movable sub-units of the setup and the samples to be tested. The bridge is installed by means of modular connection brackets (30). Connection brackets (30), designed according to the requirements of the test process, to the connection tower (10) and are standard transmission parts that are rigidly fixed to other moving mechanisms. The system's vertical drive is directed directly at the test specimen without deviation. to enable transmission and prevent unwanted torsion or wobbling on the horizontal axis A bearing element (40) is positioned in the system to allow it to pass through. Bearing element (40), movable parts in only one degree of freedom (vertical direction) By allowing it to move linearly, it increases the rigidity of the system and the test It maximizes its accuracy, repeatability, and reliability. 25 Testing of fasteners such as nuts, bolts or washers (70) The two main parts that form the connection points are the upper connection bracket (50) and the lower connection It is the bracket (60). The upper connecting bracket (50) is formed by means of the connecting tower (10). It is a part mechanically integrated into the fixed part. The lower connecting bracket (60) is 30 7 Having a bearing element (40) and a movable piston (20) connection, therefore It is the movable block that directly receives the vibration drive. The basic operating principle of the test is: fixed upper linkage bracket (50) and lower linkage bracket (60) under dynamic drive by creating vertical and lateral forces between them, the loosening agent on the binder sample. The aim is to examine the effect. The connecting elements planned to be tested (70), this upper connection 5 a certain torque to clamp the bracket (50) and the lower connecting bracket (60) together It is assembled by tightening it to its intended value. One of the most characteristic mechanical solutions of the system is the drive of the connecting element (70). needle bearings (80) and linkage 10 that manage the lateral friction to which it will be subjected. It is the seating plate (90). The corresponding upper mounting bracket (50) or test interface Needle rollers (80) positioned in the discharges, between the lower and upper test brackets By minimizing friction, the applied vertical force is transferred to the micro-direction in the horizontal direction. This allows the movable piston (20) to turn into shear. The vertical drive it creates causes not only pulling / compression in the bolt body, but also screw 15 This creates a sliding movement that triggers loosening between the teeth. The integrated working connection seat plate (90) is the one on which the tested nut presses directly and It is the surface element with which it rubs. It is placed in the compartment inside the lower bracket (60) (or (in direct contact) this connection seat plate (90), vertical and lateral movement It standardizes the contact resistance under the nut during interactions. A sliding sheet metal 20 This element, acting as a plate, undergoes relative motion under the influence of vibration and ultimately... loosening between nut and bolt threads in a way that best suits natural conditions It allows it to accelerate. The general system assembly and operation takes place as follows: First, test 25 suitable connection seat plate (90) and low friction for the connection elements (70) to be used. needle bearings (80) providing the coefficient are installed and the upper connecting bracket (50) and the lower The connecting bracket (60) is brought closer together. The connecting elements (70) are tightened to the specified torque. It is tightened to the value and the system achieves the rigidity to be tested. Then the movable piston (20) By being activated, it emits vertical 30-degree radiation at a predetermined frequency and amplitude for the desired duration. 8 Drive is applied. While the lower connecting bracket (60) moves, the upper connecting bracket (50) Since it remains fixed in the tower (10), the needle bearing (80) and the connecting seat plate (90) High energy vibration kinetics passing through the connection elements (70) a preload This starts to cause loss (loosening). With the help of sensors on the parts or this relaxation behavior is precisely recorded with end-of-test measurements. 5 developed Thanks to this design, critical areas that are difficult to test by being subjected to large forces can be addressed. The performance of fasteners varies depending on the brand, model, or thread type. under completely equal and standard mechanical conditions, extremely fast, scientific and repeatable They can be compared in some way. 10 The scope of protection in this application is defined in the claims section and is explicitly stated above. The examples given cannot be limited to those described; a person skilled in the technique can make a difference in the invention. the innovation presented can be achieved by using similar structures and / or This structure can also be applied to other similar fields using the same technology. It is clear that it can be implemented. Therefore, such structures foster innovation and especially technology. 15 It is also obvious that it will lack the criterion of exceeding the known situation.

Claims

9 REQUESTS 1- Fasteners such as nuts, bolts and washers (70) on the vertical axis Simulating real operating conditions under dynamic loads to determine relaxation behavior 5 It relates to a vibration testing setup, the characteristic of which is; - the mechanically fixed point of the system, forming a rigid reference point. at least one vertical connection tower (10), - operates on a vertical axis, providing drive and vibration motion to the mechanism. at least one movable piston (20), 10 - mechanically fixed to the connection tower (10) and the top of the test specimen at least one upper connecting bracket (50) to which the part is attached, - working in conjunction with the movable piston (20), taking the drive directly onto it and at least one lower connecting bracket to which the test specimen is held from below (60), 15 - between the mentioned upper connecting bracket (50) and the lower connecting bracket (60) Minimizing lateral friction, transferring the applied vertical force to the horizontal at least one needle that allows it to transform into micro-shifts in the direction. bearing (80), - 20 directly tested during vertical and lateral movement interactions by standardizing the contact resistance of the connecting element (70) at least one connecting seat plate (90) which acts as a sliding plane It is characterized by its inclusion. 2- A vibration test setup conforming to Claim 1, characterized by its vertical orientation of the moving parts at 25°. by allowing it to move linearly in one direction and with a single degree of freedom at least one bearing element (40) that prevents torsion and wobbling in the lateral axis It is characterized by its inclusion. 3- Vibration test setup in accordance with Claim 1, its feature is; upper connection bracket (50) 30 located on or positioned in the voids on the test interface It is characterized by containing the aforementioned needle roller (80). 4- Vibration test setup in accordance with Claim 1, its feature is; lower connection bracket (60) with the inclusion of the aforementioned connecting plate (90) placed in the compartment inside It is the characterization of the situation. 5 5- A vibration test setup conforming to Claim 3, characterized by its ability to transmit physical vibration signals. the aforementioned movable piston (20) in the form of a hydraulic-based drive element that produces It is characterized by its inclusion. 6- A vibration test setup conforming to Claim 3, its feature being; physical vibration signals 10 the aforementioned movable piston (20) in the form of a pneumatic-based drive element that produces It is characterized by its inclusion. 7- A vibration test setup in accordance with Claim 1, characterized by the aforementioned connecting tower. (10) allows mounting at different heights and configurations. It is characterized by containing rows of holes. 8- A vibration test setup conforming to Claim 1, its characteristic being; the scenario of the test process The standard provides a physical bridge between fixed and movable subunits that can be modified accordingly. 20 is characterized by containing modular structured connection brackets (30) which form a kind of It is done. 9- Vibration test setup conforming to Claim 1, characterized by: testing under vibration drive. relaxation (preload loss) behavior occurring in the connected elements (70) It is characterized by containing at least one sensor capable of precise recording. 25

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