Torsional vibration test experiment bench and test system

Abstract

The utility model provides a torsional vibration test experiment bench and a test system, and the test system comprises a supporting mechanism which comprises a bench body; the torsional vibration simulation mechanism comprises a first rotary driver, a second rotary driver, a linkage rod, a first inertia disc and a second inertia disc, encoders are arranged on the first rotary driver and the second rotary driver respectively, and the linkage rod rotates around the axial direction of the linkage rod through the first rotary driver and / or the second rotary driver; the first inertia disc is connected to the first rotary driver, the second inertia disc is connected to the second rotary driver, and the inertia of the first inertia disc is different from that of the second inertia disc. Different working conditions can be simulated, and the torsion angle, the rotating speed and the torsion vibration frequency are calculated through the encoder, so that the torsion vibration problem of a mechanical system is effectively researched and controlled, and the reliability and the safety of mechanical equipment are improved. Therefore, the method has the remarkable advantages of wide application range, high simulation degree, accurate detection, capability of remarkably improving the test efficiency and the like.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically to a torsional vibration testing test bench and testing system. Background Technology

[0002] With the continuous improvement of industrial automation, mechanical equipment is being used more and more widely in various production fields. However, torsional vibration, a common problem in the operation of mechanical equipment, has a serious impact on its performance, reliability, and service life. Torsional vibration can not only cause fatigue damage to mechanical structures but also lead to instability in control systems, thereby affecting production efficiency and product quality. Therefore, research on the analysis and control technology of torsional vibration has significant practical implications.

[0003] In existing torsional vibration testing techniques, only one load condition can be simulated for each device under test, and load adjustments are often inflexible. Since the loads on actual mechanical systems are variable and complex, a fixed load inertia setting cannot accurately reflect the torsional vibration characteristics under different operating conditions. Secondly, traditional torsional vibration testing equipment is limited in data acquisition, often only measuring the torsional state at a single location, failing to comprehensively acquire torsional vibration information for the entire system, thus affecting a deeper understanding and analysis of the system's torsional vibration characteristics. Summary of the Invention

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the problem of poor flexibility in torsional vibration testing in the prior art, and to provide a torsional vibration testing test bench and testing system.

[0005] To solve the above-mentioned technical problems, this utility model provides a torsional vibration testing test bench, which includes: a support mechanism, the support mechanism including a platform; and a torsional vibration simulation mechanism, the torsional vibration simulation mechanism being disposed on the platform, which includes a first rotary driver, a second rotary driver, a connecting rod, a first inertia disk, and a second inertia disk. The first rotary driver and the second rotary driver are arranged opposite to each other along a first direction, and the first rotary driver is provided with a first encoder, and the second rotary driver is provided with a second encoder. The two ends of the connecting rod are respectively connected to the first rotary driver and the second rotary driver, and it rotates around its axial direction through the first rotary driver and / or the second rotary driver. The first inertia disk is connected to the working end of the first rotary driver, and the second inertia disk is connected to the working end of the second rotary driver, wherein the inertia of the first inertia disk and the second inertia disk are different.

[0006] In one embodiment of the present invention, the support mechanism further includes a spacing adjustment track, which is disposed on the platform and extends along a first direction, and the first rotary driver is slidably connected to the spacing adjustment track.

[0007] In one embodiment of the present invention, the torsional vibration simulation mechanism further includes a sliding component. The first rotary driver is connected to the spacing adjustment track through the sliding component. The sliding component includes a support plate, a slider, and a connecting block. The slider is slidably connected to the spacing adjustment track. One side of the connecting block is connected to the slider, and the other side is connected to the support plate. The first rotary driver is disposed on the support plate.

[0008] In one embodiment of the present invention, the torsional vibration simulation mechanism further includes two assemblies, and the two ends of the linkage are respectively connected to the first rotary driver and the second rotary driver through the assemblies.

[0009] In one embodiment of the present invention, any of the assembly parts includes a first fixing part and a second fixing part, which are detachably connected. The first fixing part is sleeved on the working end of the first rotary driver or the second rotary driver, and the second fixing part is provided with a contour hole that matches the cross-sectional shape of the connecting rod, through which the connecting rod passes.

[0010] In one embodiment of the present invention, the support mechanism further includes multiple legs and multiple height adjustment components. The multiple legs are respectively connected to the platform through the multiple height adjustment components that correspond one-to-one, so that the platform can move up and down along its thickness direction.

[0011] In one embodiment of this utility model, any of the height adjustment components includes a connecting plate, a connecting shaft, and a fixing member. One end of the connecting plate is connected to the bottom surface of the platform, and the other end extends in a horizontal direction. The connecting shaft extends along the thickness direction of the platform, with one end connected to the free end of the connecting plate and the other end connected to the support leg. The fixing member is arranged around the connecting shaft and supports the connecting plate.

[0012] In one embodiment of the present invention, the torsional vibration simulation mechanism further includes a first support member and a second support member. The first support member is disposed between the platform and the first rotary driver and is fixedly connected to the platform. The second support member is disposed between the platform and the second rotary driver to support and fix the second rotary driver.

[0013] In one embodiment of the present invention, it further includes a control system, wherein the first rotary driver, the second rotary driver, the first encoder, and the second encoder are respectively connected to the control system.

[0014] This utility model also provides a torsional vibration testing system, which includes the torsional vibration testing test bench described above.

[0015] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0016] The torsional vibration testing test bench and system described in this utility model provide an installation platform through a support mechanism, and simultaneously perform Newtonian vibration simulation and data acquisition through a torsional vibration simulation mechanism. The first and second inertia disks adjust the total inertia of the system asynchronously to simulate different working conditions. A linkage transmits torsional torque, and the first and second encoders accurately calculate the torsional angle, rotational speed, and torsional vibration frequency, thereby effectively studying and controlling the torsional vibration of the mechanical system and improving the reliability and safety of the mechanical equipment. Compared to conventional testing equipment, this application offers adjustable overall load, flexibility, and ease of operation, thus possessing significant advantages such as wide applicability, high simulation accuracy, precise detection, and significantly improved testing efficiency. Attached Figure Description

[0017] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0018] Figure 1 This is a three-dimensional structural diagram of the torsional vibration testing test bench in a preferred embodiment of this utility model;

[0019] Figure 2 yes Figure 1 The diagram shows the internal structure of the torsional vibration test bench.

[0020] Figure 3 yes Figure 1 The diagram shows a three-dimensional structure of the sliding component and the spacing adjustment track in the torsional vibration test bench.

[0021] Explanation of reference numerals in the accompanying drawings: 100, Support mechanism; 110, Platform; 111, Spacing adjustment track; 120, Support leg; 130, Height adjustment assembly; 131, Connecting plate; 132, Connecting shaft; 200, Torsional vibration simulation mechanism; 210, First support member; 220, Second support member; 230, Sliding assembly; 231, Bearing plate; 232, Slider; 233, Connecting block; 240, First rotary actuator; 250, First inertia disk; 260, Linking rod; 270, Second rotary actuator; 280, Second inertia disk; 290, Assembly part; 291, First fixed part; 292, Second fixed part; 300, Protective net; X, First direction; Y, Second direction; Z, Third direction. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0023] Example 1

[0024] This embodiment provides a torsional vibration testing test bench, comprising: a support mechanism 100, the support mechanism 100 including a platform 110; and a torsional vibration simulation mechanism 200, the torsional vibration simulation mechanism 200 being disposed on the platform 110, comprising a first rotary driver 240, a second rotary driver 270, a connecting rod 260, a first inertia disk 250, and a second inertia disk 280. The first rotary driver 240 and the second rotary driver 270 are disposed opposite to each other along a first direction X, and the first rotary driver 240 is provided with a first encoder, and the second rotary driver 270 is provided with a second encoder. The two ends of the connecting rod 260 are respectively connected to the first rotary driver 240 and the second rotary driver 270, and it rotates about its axial direction through the first rotary driver 240 and / or the second rotary driver 270. The first inertia disk 250 is connected to the working end of the first rotary driver 240, and the second inertia disk 280 is connected to the working end of the second rotary driver 270, wherein the inertia of the first inertia disk 250 and the second inertia disk 280 are different.

[0025] The torsional vibration test bench described in this embodiment provides an installation platform through the support mechanism 100. Simultaneously, the torsional vibration simulation mechanism 200 performs torsional vibration simulation and data acquisition. The first inertia disk 250 and the second inertia disk 280 adjust the total inertia of the system asynchronously to simulate different working conditions. The linkage 260 transmits torsional torque. The first encoder and the second encoder accurately calculate the torsional angle, rotational speed, and torsional vibration frequency, thereby effectively studying and controlling the torsional vibration problem of the mechanical system and improving the reliability and safety of the mechanical equipment. Compared with conventional testing equipment, this application has an adjustable overall load, is flexible in use, and easy to operate, thus possessing significant advantages such as wide applicability, high simulation accuracy, precise detection, and significantly improved testing efficiency.

[0026] It should be noted that, for ease of description, in this embodiment, the length direction of the experimental platform is defined as the first direction X, the width direction of the experimental platform is defined as the second direction Y, and the height direction of the experimental platform is defined as the third direction Z. The first direction X, the second direction Y, and the third direction Z are arranged perpendicularly to each other, and the first direction X and the second direction Y are located in the same plane.

[0027] See Figure 1 As shown, the support mechanism 100 in this embodiment provides an experimental platform for the torsional vibration simulation mechanism 200. It also includes multiple legs 120 and multiple height adjustment components 130. Each of the multiple legs 120 is connected to the platform 110 via a corresponding height adjustment component 130, allowing the platform 110 to move up and down along its thickness direction. Further, each height adjustment component 130 includes a connecting plate 131, a connecting shaft 132, and a fixing member. One end of the connecting plate 131 is connected to the bottom surface of the platform 110, and the other end extends horizontally. The connecting shaft 132 extends along the thickness direction of the platform 110, with one end connected to the free end of the connecting plate 131 and the other end connected to the leg 120. The fixing member is arranged around the connecting shaft 132 and supports the connecting plate 131. Specifically, in this embodiment, the fixing member is preferably a nut. In addition, to improve the stability of the experimental environment and reduce external interference factors, this embodiment also includes a protective net 300, and the torsional vibration simulation mechanism 200 is disposed inside the protective net 300.

[0028] See Figure 2 and Figure 3As shown, in the torsional vibration simulation mechanism 200 of this embodiment, the first rotary actuator 240 and the second rotary actuator 270 simulate different inertia conditions using different numbers of inertia disks. This asynchronous addition method can adjust the total inertia of the system to simulate different working conditions, thereby enabling experimenters to study the effect of different inertia on torsional vibration characteristics. Specifically, in this embodiment, the total inertia of the first rotary actuator 240 and the first inertia disk 250 is 0.2 kg·m. 2 The total inertia of the second rotary drive 270 and the second inertia disk 280 is 0.8 kg·m2, and the encoder is an ABZ incremental encoder.

[0029] In this embodiment, to achieve the desired spacing between the first rotary actuator 240 and the second rotary actuator 270, the support mechanism 100 further includes a spacing adjustment track 111. The spacing adjustment track 111 is disposed on the platform 110 and extends along the first direction X. The first rotary actuator 240 is slidably connected to the spacing adjustment track 111. Further, the torsional vibration simulation mechanism 200 also includes a sliding assembly 230. The first rotary actuator 240 is connected to the spacing adjustment track 111 via the sliding assembly. The sliding assembly 230 includes a support plate 231, a slider 232, and a connecting block 233. The slider 232 is slidably connected to the spacing adjustment track 111. One side of the connecting block 233 is connected to the slider 232, and the other side is connected to the support plate 231. The first rotary actuator 240 is disposed on the support plate 231, thereby further improving the simulation experimental range of this platform.

[0030] In this embodiment, the torsional vibration simulation mechanism 200 further includes two mounting parts 290. The two ends of the connecting rod 260 are respectively connected to the first rotary driver 240 and the second rotary driver 270 through the mounting parts 290. Each mounting part 290 includes a first fixing part 291 and a second fixing part 292. The first fixing part 291 and the second fixing part 292 are detachably connected. The first fixing part 291 is sleeved on the working end of the first rotary driver 240 or the second rotary driver 270. The second fixing part 292 is provided with a contour hole that matches the cross-sectional shape of the connecting rod 260. The connecting rod 260 passes through the contour hole, thereby realizing the rotational connection between the first rotary driver 240 and the second rotary driver 270 through the connecting rod 260.

[0031] In addition, to further improve the stability of the experimental platform, the torsional vibration simulation mechanism 200 in this embodiment also includes a first support member 210 and a second support member 220. The first support member 210 is disposed between the platform 110 and the first rotary driver 240 and is fixedly connected to the platform 110. The second support member 220 is disposed between the platform 110 and the second rotary driver 270 to support and fix the second rotary driver 270.

[0032] Furthermore, this embodiment also includes a control system, with the first rotary driver 240, the second rotary driver 270, the first encoder, and the second encoder respectively connected to the control system. In actual production and processing, operators can use the control system to adjust the above structure in real time, thereby improving the flexibility of the experimental platform. Parameters can also be preset through the control system, thereby increasing the automation level of the experimental platform.

[0033] Example 2

[0034] This embodiment provides a torsional vibration testing system, which includes the torsional vibration testing test bench described in Embodiment 1.

[0035] In summary, the torsional vibration testing test bench and system described in this utility model provides an installation platform through the support mechanism 100, and performs torsional vibration simulation and data acquisition through the torsional vibration simulation mechanism 200. The first inertia disk 250 and the second inertia disk 280 adjust the total inertia of the system asynchronously to simulate different working conditions. The linkage 260 transmits torsional torque, and the first and second encoders accurately calculate the torsional angle, rotational speed, and torsional vibration frequency, thereby effectively studying and controlling the torsional vibration problem of the mechanical system and improving the reliability and safety of the mechanical equipment. Compared with conventional testing equipment, this application has an adjustable overall load, is flexible in use, and easy to operate, thus possessing significant advantages such as wide applicability, high simulation accuracy, precise detection, and significantly improved testing efficiency.

[0036] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A torsional vibration testing test bench, characterized in that: include: The support mechanism includes a platform. A torsional vibration simulation mechanism is disposed on the platform and includes a first rotary driver, a second rotary driver, a connecting rod, a first inertia disk, and a second inertia disk. The first rotary driver and the second rotary driver are arranged opposite to each other along a first direction, and the first rotary driver is provided with a first encoder, and the second rotary driver is provided with a second encoder. The two ends of the connecting rod are respectively connected to the first rotary driver and the second rotary driver, and it rotates about its axis through the first rotary driver and / or the second rotary driver. The first inertia disk is connected to the working end of the first rotary driver, and the second inertia disk is connected to the working end of the second rotary driver, wherein the inertia of the first inertia disk and the second inertia disk are different.

2. The torsional vibration testing test bench according to claim 1, characterized in that: The support mechanism further includes a spacing adjustment track, which is disposed on the platform and extends along a first direction, and the first rotary driver is slidably connected to the spacing adjustment track.

3. The torsional vibration testing test bench according to claim 2, characterized in that: The torsional vibration simulation mechanism also includes a sliding component. The first rotary driver is connected to the spacing adjustment track through the sliding component. The sliding component includes a support plate, a slider, and a connecting block. The slider is slidably connected to the spacing adjustment track. One side of the connecting block is connected to the slider, and the other side is connected to the support plate. The first rotary driver is disposed on the support plate.

4. The torsional vibration testing test bench according to claim 1, characterized in that: The torsional vibration simulation mechanism also includes two assemblies, and the two ends of the linkage are respectively connected to the first rotary driver and the second rotary driver through the assemblies.

5. The torsional vibration testing test bench according to claim 4, characterized in that: All of the above-mentioned components include a first fixing part and a second fixing part, which are detachably connected. The first fixing part is sleeved on the working end of the first rotary driver or the second rotary driver, and the second fixing part is provided with a contour hole that matches the cross-sectional shape of the connecting rod, through which the connecting rod passes.

6. The torsional vibration testing test bench according to claim 1, characterized in that: The support mechanism also includes multiple legs and multiple height adjustment components. The multiple legs are respectively connected to the platform through the multiple height adjustment components that correspond one-to-one, so that the platform can move up and down along its thickness direction.

7. The torsional vibration testing test bench according to claim 6, characterized in that: Any of the height adjustment components includes a connecting plate, a connecting shaft, and a fixing member. One end of the connecting plate is connected to the bottom surface of the platform, and the other end extends horizontally. The connecting shaft extends along the thickness direction of the platform, with one end connected to the free end of the connecting plate and the other end connected to the support leg. The fixing member is arranged around the connecting shaft and supports the connecting plate.

8. The torsional vibration testing test bench according to claim 1, characterized in that: The torsional vibration simulation mechanism further includes a first support member and a second support member. The first support member is disposed between the platform and the first rotary driver and is fixedly connected to the platform. The second support member is disposed between the platform and the second rotary driver to support and fix the second rotary driver.

9. The torsional vibration testing test bench according to claim 1, characterized in that: It also includes a control system, wherein the first rotary driver, the second rotary driver, the first encoder, and the second encoder are respectively connected to the control system.

10. A torsional vibration testing system, characterized in that: The test bench for torsional vibration testing includes any one of claims 1 to 9.

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