Steering vibration simulation test tool

Abstract

The utility model discloses a steering vibration simulation test tool, which belongs to the technical field of vibration test and comprises a vibration platform and a driving frame arranged above the vibration platform. The debugging assembly is arranged in the driving frame; wherein the debugging assembly comprises a shell fixed in the driving frame; by arranging the debugging assembly, a sample can be debugged to any angle when a worker needs to carry out a steering vibration test on the sample, so that the detection comprehensiveness of the sample is improved, and meanwhile, the effect of simulating a real transportation bumpy environment can be achieved; a sample is limited through the first electromagnet and the second electromagnet, the problem that a traditional bolt is prone to loosening during vibration detection can be effectively avoided, uniform distribution of electromagnetic force of the first electromagnet and the second electromagnet can ensure that the fixing force of the sample is more uniform, and therefore the reliability of a test result is improved; and meanwhile, the electromagnet is more convenient to fix and disassemble, and the trouble of repeatedly rotating the bolt is avoided.

Description

Technical Field

[0001] This utility model relates to the field of vibration testing technology, and specifically to a steering vibration simulation testing fixture. Background Technology

[0002] Vibration measurements in environmental vibration testing fall into two categories: one is the measurement of vibrations of objects that cause noise radiation; the other is the measurement of environmental vibrations. The most commonly used vibration modes can be divided into two types: sinusoidal vibration and random vibration.

[0003] A search revealed Chinese patent "Automatic Steering Fixture and Vibration Test Stand Having It" (publication number CN218628888U). This utility model provides an automatic steering fixture and a vibration test stand having it, comprising: a fixture frame; a sample holder rotatably connected to the fixture frame; a drive device disposed on the fixture frame, the power output end of the drive device being drivenly connected to the sample holder for driving the sample holder to rotate; and a timing device disposed on the fixture frame, the timing device being electrically connected to the drive device. This utility model's automatic steering fixture allows the angle of the sample holder to be set at any time according to actual testing requirements, realizing multi-angle vibration simulation testing of the tested sample, greatly improving the accuracy and rigor of vibration testing. (ESM) A similar invention has been applied for a patent on the same day.

[0004] Although the aforementioned vibration testing fixture can drive the sample to rotate through the drive device and achieve the effect of directional vibration in conjunction with the vibration platform, the sample is limited by the sample holder and pressure plate. Therefore, it can only maintain a horizontal or vertical shape during installation, which cannot simulate the complex situation during actual transportation. Furthermore, the method of fixing the sample with bolts using the pressure plate may cause the bolts to loosen due to the transmission of vibration energy, which will lead to a gradual decrease in the stability of the sample and affect the test data.

[0005] Based on this, the present invention designs a steering vibration simulation test fixture to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a steering vibration simulation test fixture.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A steering vibration simulation test fixture includes: a vibration platform and a drive frame disposed thereon;

[0009] A debugging component, wherein the debugging component is disposed in the drive rack;

[0010] The debugging component includes a housing fixed in the drive frame, a sleeve is provided in the housing, a sliding hole is opened on the surface of the housing, a rotating shaft is fixedly connected to the top and bottom of the sleeve, the rotating shaft slides in the sliding hole, a first electromagnet is sleeved on the surface of the rotating shaft, the first electromagnet is located on the outer surface of the housing, and a second electromagnet is fixedly connected to the surface of the rotating shaft and near the inner wall of the housing.

[0011] Furthermore, metal rings are provided on both the surface and inner wall of the outer shell, and the two metal rings are respectively attracted to the first electromagnet and the second electromagnet.

[0012] Furthermore, a protective shell is provided within the casing, and the sample is placed within the protective shell.

[0013] Furthermore, each of the four corners of the sample surface is provided with a filling pad, and the filling pad is cuttable.

[0014] Furthermore, the end of the rotating shaft near the first electromagnet is planar, and the planar end of the rotating shaft is adapted to the shape of the inner hole of the first electromagnet.

[0015] Furthermore, a fixed frame is provided on the vibration platform, and a motor is installed in the fixed frame. The output end of the motor is fixedly connected to the drive frame.

[0016] Furthermore, a bearing seat is provided on the side of the drive frame away from the fixed frame, and the lower part of the bearing seat is fixedly connected to the vibration platform.

[0017] Furthermore, a bearing seat is provided on the side of the drive frame away from the fixed frame, and the lower part of the bearing seat is fixedly connected to the vibration platform. Beneficial effects

[0018] 1. By setting up the debugging components, the sample can be adjusted to any angle when the staff needs to conduct a steering vibration test on the sample, which improves the comprehensiveness of the sample test and can also achieve the effect of simulating the bumpy environment of real transportation.

[0019] 2. By using the first and second electromagnets to confine the sample, the problem of traditional bolts easily loosening during vibration testing can be effectively avoided. Furthermore, the uniform distribution of electromagnetic forces between the first and second electromagnets ensures a more uniform fixing force on the sample, thereby improving the reliability of the test results. At the same time, the process of fixing and disassembling the electromagnets is simpler, avoiding the trouble of repeatedly rotating the bolts. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a steering vibration simulation test fixture according to the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of a steering vibration simulation test fixture debugging assembly according to the present invention;

[0023] Figure 3 This is a schematic diagram showing the disassembled structure of a steering vibration simulation test fixture debugging component according to the present invention;

[0024] Figure 4 This is a schematic diagram of the protective shell of a steering vibration simulation test fixture according to the present invention.

[0025] The labels in the diagram represent:

[0026] 1. Vibration platform; 2. Shaft seat; 3. Fixing frame; 4. Motor; 5. Debugging components; 501. Housing; 502. Sleeve; 503. Second electromagnet; 504. First electromagnet; 505. Protective shell; 506. Filler pad; 507. Sample; 508. Rotating shaft; 6. Drive frame. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] The present invention will be further described below with reference to the embodiments.

[0029] In some embodiments, please refer to the appendix to the instruction manual. Figure 1-4 A steering vibration simulation test fixture includes: a vibration platform 1 and a drive frame 6 disposed above it; and a debugging component 5 disposed in the drive frame 6.

[0030] A vibration table, also known as a vibration exciter or vibration generator, is a device that generates mechanical vibration using electric, electrohydraulic, piezoelectric, or other principles. Its principle involves inputting an excitation signal into a coil placed in a magnetic field to drive a worktable connected to the coil. Electric vibration tables are mainly used for vibration measurements above 10Hz, and can excite a maximum pressure of 200N. In the frequency range below 20Hz, electrohydraulic vibration tables are commonly used, where the nature of the vibration signal is controlled by an electro-servo system. Hydraulic drive systems can provide larger displacements and impact forces. Vibration tables can be used for accelerometer calibration, vibration performance testing of electroacoustic devices, and other vibration experiments. For different test objects and technical specifications, attention should be paid to selecting vibration tables with different structures and excitation ranges.

[0031] In some embodiments, such as Figure 1-4 As shown, in a preferred embodiment of the present invention, the debugging component 5 includes a housing 501 fixed in the drive frame 6, a sleeve 502 provided in the housing 501, a sliding hole opened on the surface of the housing 501, a rotating shaft 508 fixedly connected to the top and bottom of the sleeve 502, the rotating shaft 508 sliding in the sliding hole, a first electromagnet 504 sleeved on the surface of the rotating shaft 508, the first electromagnet 504 being located on the outer surface of the housing 501, and a second electromagnet 503 fixedly connected to the surface of the rotating shaft 508 and close to the inner wall of the housing 501;

[0032] In this embodiment of the utility model, metal rings are provided on the surface and inner wall of the outer shell 501, and the two metal rings are respectively attracted to the first electromagnet 504 and the second electromagnet 503; through the metal rings, the sample 507 can be positioned in multiple directions in conjunction with the first electromagnet 504 and the second electromagnet 503.

[0033] In this embodiment of the utility model, a protective shell 505 is provided in the casing 502, and a sample 507 is provided in the protective shell 505.

[0034] In this embodiment of the utility model, the end of the rotating shaft 508 near the first electromagnet 504 is flat, and the flat end of the rotating shaft 508 is adapted to the shape of the inner hole of the first electromagnet 504; through the above description, the first electromagnet 504 can be used to prevent the rotating shaft 508 from rotating on its own.

[0035] The working principle of an electromagnet is based on the fundamental law that an electric current passing through a conductor generates a magnetic field. When an electric current passes through the coil of an electromagnet, the surrounding conductor material is magnetized, forming a magnetic field. When the magnetic field generated by the electromagnet acts on the metal ring, the magnetic field causes the free electrons inside the metal ring to align in an orientation, thus making the metal ring itself a temporary magnet and generating an attractive force. At this time, a mutual attractive force is generated between the metal ring and the electromagnet, which allows the first electromagnet 504 and the second electromagnet 503 to be attracted to the surface of the metal ring to limit the angle of the rotating shaft 508. When the current stops, the magnetic field disappears, the metal ring loses its magnetism, the attractive force of the electromagnet disappears, and the angle of the rotating shaft 508 can be adjusted at will again.

[0036] It should be noted that a battery box is provided on the surface of the outer casing 501 and at the location of the first electromagnet 504 and the second electromagnet 503. The wires of this battery box are inserted into the outer casing 501 and can supply power to the first electromagnet 504 and the second electromagnet 503 respectively. The wires will not be tangled when the drive frame 6 rotates.

[0037] When the staff needs to limit the test angle of sample 507, if it is necessary to adjust the lateral angle of sample 507, then after the housing 502 is adjusted, the second electromagnet 503 will be attracted to the metal ring on the inner wall of the housing 501, which can limit the rotation axis 508 of the housing 502, so that the sample 507 in the housing 502 is kept in this orientation. When it is necessary to adjust the longitudinal angle of sample 507, after the adjustment is completed, the first electromagnet 504 will be attracted to the metal ring on the surface of the housing 501, and the longitudinal angle of sample 507 will be limited.

[0038] In some embodiments, such as Figure 4 As shown, in a preferred embodiment of the present invention, a filling pad 506 is provided at each of the four corners of the surface of the sample 507, and the filling pad 506 is cuttable.

[0039] When personnel need to install samples 507 of different widths and lengths, they only need to open the cover plate of the protective shell 505, then cut the filling pad 506 according to the distance between the sample 507 and the inner wall of the protective shell 505, and then fill the filling pad 506 between the sample 507 and the protective shell 505 to fix the sample 507. At the same time, it can also simulate the real transportation environment of the sample 507 and improve the data simulation accuracy of the steering vibration test.

[0040] In some embodiments, such as Figure 1As shown, in a preferred embodiment of the present invention, a fixed frame 3 is provided on the vibration platform 1, a motor 4 is provided in the fixed frame 3, and the output end of the motor 4 is fixedly connected to the drive frame 6; a shaft seat 2 is provided on the side of the drive frame 6 away from the fixed frame 3, and the lower part of the shaft seat 2 is fixedly connected to the vibration platform 1.

[0041] When the staff needs to perform a steering vibration test on the sample 507, after the sample 507 is placed and the angle is adjusted, the motor 4 is turned on. The output end of the motor 4 drives the drive frame 6 to rotate. The drive frame 6 drives the internal adjustment component 5 and the sample 507 to flip. In conjunction with the vibration of the vibration platform 1, the steering vibration test effect can be achieved.

[0042] It should be noted that the vibration platform 1, bearing 2, motor 4, first electromagnet 504, second electromagnet 503, and battery mentioned above are all components with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the vibration platform 1, motor 4, first electromagnet 504, second electromagnet 503, and battery can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0043] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A steering vibration simulation test fixture, comprising a vibration platform (1) and a drive frame (6) disposed thereon, characterized in that: Debugging component (5), which is disposed in drive frame (6); The debugging component (5) includes a housing (501) fixed in the drive frame (6), a sleeve (502) is provided in the housing (501), a sliding hole is provided on the surface of the housing (501), and a rotating shaft (508) is fixedly connected to the top and bottom of the sleeve (502). The rotating shaft (508) slides in the sliding hole, and a first electromagnet (504) is sleeved on the surface of the rotating shaft (508). The first electromagnet (504) is located on the outer surface of the housing (501), and a second electromagnet (503) is fixedly connected to the surface of the rotating shaft (508) and close to the inner wall of the housing (501).

2. The steering vibration simulation test fixture according to claim 1, characterized in that, The outer shell (501) is provided with metal rings on its surface and inner wall, and the two metal rings are respectively attracted to the first electromagnet (504) and the second electromagnet (503).

3. The steering vibration simulation test fixture according to claim 1, characterized in that, The casing (502) is provided with a protective shell (505), and the protective shell (505) is provided with a sample (507).

4. The steering vibration simulation test fixture according to claim 3, characterized in that, The sample (507) has a filling pad (506) at each of its four corners, and the filling pad (506) is cuttable.

5. The steering vibration simulation test fixture according to claim 1, characterized in that, The end of the rotating shaft (508) near the first electromagnet (504) is planar, and the planar end of the rotating shaft (508) is adapted to the shape of the inner hole of the first electromagnet (504).

6. The steering vibration simulation test fixture according to claim 1, characterized in that, The vibration platform (1) is provided with a fixed frame (3), and a motor (4) is provided in the fixed frame (3). The output end of the motor (4) is fixedly connected to the drive frame (6).

7. The steering vibration simulation test fixture according to claim 1, characterized in that, The drive frame (6) is provided with a bearing seat (2) on the side away from the fixed frame (3), and the lower part of the bearing seat (2) is fixedly connected to the vibration platform (1).

8. The steering vibration simulation test fixture according to claim 1, characterized in that, The surface of the outer casing (501) is provided with a battery box, wherein the battery box is electrically connected to the first electromagnet (504) and the second electromagnet (503) respectively.

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