Multifunctional coupling test device

Abstract

A multifunctional coupling test device belongs to the transmission part test field. The technical problems that an existing coupling testing device is inconvenient to adjust and cannot be suitable for couplings of different length series at the same time are solved. The device comprises an energy feedback loading transmission system and a six-degree-of-freedom platform. The output end of the shaft of the driving device is connected with the input end of the shaft of the input transmission case, the input end of the test piece coupling is connected with the output end of the shaft of the input transmission case, the output end of the test piece coupling is connected with the input end of the shaft of the output transmission case, and the output end of the shaft of the transmission case is connected with the input end of the shaft of the loading device; the upper platform is arranged above the lower platform, and the upper platform and the lower platform are connected through the posture adjustment executing mechanism; the input transmission case is installed on the top face of the upper platform, and the output transmission case is installed on the bottom face of the lower platform. And various test requirements of various types of couplings are met. The device is used for coupling tests.

Description

Technical Field

[0001] The invention relates to a multifunctional coupling test device, belonging to the field of transmission component testing. Background Art

[0002] The coupling is a key component widely used in various rotating machinery. It mainly connects two transmission devices. While transmitting torque, it compensates for deviations such as equipment installation, processing, thermal deformation during operation, and vibration during operation. The coupling can ensure smooth power transmission and reduce vibration and noise. There are many types of couplings, and the common types include diaphragm couplings, plum blossom couplings, grinding disc couplings, gear couplings, universal joint couplings, etc. In order to ensure that the coupling can work smoothly and achieve the expected performance, multiple tests are often required in the research and development and inspection links.

[0003] Common tests for couplings include static tests and dynamic tests. Static tests mainly include static stiffness tests, etc. Dynamic tests mainly include dynamic balance tests, torsional vibration isolation tests, fatigue endurance tests, compensation performance tests, wear fatigue tests, etc. At present, common coupling test devices can often meet the requirements of conventional tests such as static stiffness tests and dynamic balance tests. Important fatigue endurance tests, compensation performance tests, wear fatigue tests, and damping vibration reduction tests often require that the test bench can operate reliably for a long time and can simulate angular deflection and axial deviation. At present, many scholars and manufacturers have designed and developed a variety of coupling test benches. Among them, the "A large-torque and large-angle universal coupling test bench" with Chinese patent number CN105738105A published on July 6, 2015 can test the large-angle angular deviation of the external joint coupling, but does not consider the comprehensive deviation test of axial deviation and angular deviation. In addition, if the test bench is replaced with test couplings of different lengths, manual adjustment is required, which is inconvenient; the "A coupling test device and coupling test system" with Chinese patent number CN110146283A published on August 20, 2019 applies the principle of mechanical power closure, and also adjusts the radial and axial deflections by adjusting the deflection device. However, due to the limitations of the transmission principle of mechanical power closure, when the test coupling is offset adjusted, the nearby companion test coupling will cause abnormal deflection, and long-term stable and reliable operation cannot be guaranteed.

[0004] In summary, the existing coupling test device has technical problems such as inconvenient adjustment and inability to simultaneously apply couplings of different length series. Summary of the invention

[0005] The present invention aims to solve the technical problems that the existing coupling test device is difficult to adjust and cannot be used for couplings of different length series at the same time, and further provides a multifunctional coupling test device.

[0006] The technical solution of the present invention is a multifunctional coupling test device, which includes an energy feedback loading transmission system and a six-degree-of-freedom platform;

[0007] The energy feedback loading transmission system comprises a driving device, an input transmission box, a test piece coupling, an output transmission box and a loading device, wherein the output end of the shaft of the driving device is connected to the input end of the shaft of the input transmission box, the input end of the test piece coupling is connected to the output end of the shaft of the input transmission box, the output end of the test piece coupling is connected to the input end of the shaft of the output transmission box, and the output end of the shaft of the transmission box is connected to the input end of the shaft of the loading device;

[0008] The six-degree-of-freedom platform comprises an upper platform, an attitude adjustment actuator and a lower platform, the upper platform is arranged above the lower platform, and the upper platform and the lower platform are connected through the attitude adjustment actuator;

[0009] The input transmission box is installed on the top surface of the upper platform, and the output transmission box is installed on the bottom surface of the lower platform.

[0010] As another improvement of the present invention, it also includes a torque meter, and two torque meters are respectively installed at the input end and the output end of the test piece coupling.

[0011] As another improvement of the present invention, the bottom of the input transmission box and the top of the output transmission box are both provided with connection covers, the input transmission box is installed on the top surface of the upper platform through the connection cover, and the output transmission box is installed on the bottom surface of the lower platform through the connection cover.

[0012] As another improvement of the present invention, a flange is provided between the input end of the test piece coupling and the output shaft of the input transmission box, and the input end of the test piece coupling is connected to the output shaft of the input transmission box via the flange.

[0013] As another improvement of the present invention, a flange is provided between the output end of the test piece coupling and the input shaft of the output transmission box, and the output end of the test piece coupling is connected to the input shaft of the output transmission box via the flange.

[0014] As another improvement of the present invention, the upper platform and the lower platform are connected via six posture adjustment actuators; the six posture adjustment actuators are evenly and symmetrically arranged.

[0015] As another improvement of the present invention, the six posture adjustment actuators change the parallel distance H between the upper platform and the lower platform through synchronous movement.

[0016] As another improvement of the present invention, the six posture adjustment actuators achieve the displacement of the test piece coupling along the X-axis, Y-axis and Z-axis directions through long and short combined movements.

[0017] Beneficial effects of the present invention:

[0018] 1. The multifunctional coupling test device of the present invention can quickly and accurately adjust the angle, axial, radial and other deviations through the cooperation of the energy feedback loading transmission system and the six-degree-of-freedom platform, and can operate stably, reliably and efficiently. It can adapt to couplings of different length series, different types, speeds and torque parameters, and can perform dynamic tests such as torsional vibration isolation test, torsional fatigue test, dynamic comprehensive compensation performance test, etc. It has a simple principle, novel structure, rich functions and reliable performance, which meets the various test requirements of various types of couplings and makes up for the shortcomings of most current coupling test devices.

[0019] 2. A multifunctional coupling test device of the present invention can achieve high-precision testing of the influence of dynamic deviation on torque fluctuation by installing torque meters at the input end and output end of the test piece coupling respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of a multifunctional coupling testing device of the present invention.

[0021] Figure 2 It is a front view schematic diagram of a multifunctional coupling testing device of the present invention.

[0022] Figure 3 It is a top view schematic diagram of a multifunctional coupling testing device of the present invention.

[0023] Figure 4 It is a structural diagram of the energy feedback loading transmission system. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the examples of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention. In the description of the present invention, it should be explained that the positional relationship indicated by the terms "upper", "lower", etc. is only based on the positional relationship of the orientation shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the referred components have a specific orientation, are constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0025] Specific implementation method 1: Combination Figures 1 to 4 To describe this embodiment, a multifunctional coupling test device includes an energy feedback loading transmission system 10 and a six-degree-of-freedom platform 20;

[0026] The energy feedback loading transmission system 10 includes a driving device 11, an input transmission box 12, a test piece coupling 13, an output transmission box 15 and a loading device 16. The output end of the shaft of the driving device 11 is connected to the input end of the shaft of the input transmission box 12. The driving device 11 is installed on the right side of the input transmission box 12. The input end of the test piece coupling 13 is connected to the output shaft of the input transmission box 12. The input end of the test piece coupling 13 is connected to the output end of the shaft of the input transmission box 12. The output end of the shaft of the transmission box 15 is connected to the input end of the shaft of the loading device 16. The loading device 16 is installed on the right side of the transmission box 15.

[0027] The six-degree-of-freedom platform 20 includes an upper platform 21, a posture adjustment actuator 22 and a lower platform 23. The upper platform 21 is arranged above the lower platform 23, and the upper platform 21 and the lower platform 23 are connected through the posture adjustment actuator 22.

[0028] The input transmission box 12 is installed on the top surface of the upper platform 21, and the output transmission box 15 is installed on the bottom surface of the lower platform 23. The driving device 11 of the energy feedback loading transmission system 10 drives the input transmission box 12 to control the rotation speed of the test piece coupling 13. The loading device 16 applies a loading torque in the opposite direction to the driving torque applied by the driving device 11 to the test piece coupling 13 through the output transmission box 15, thereby realizing the control of the rotation speed and torque of the test piece coupling 13. The driving device 11 consumes energy as the driving end, and the loading device 16 generates energy as the load end. Through the energy sealing principle such as electricity or hydraulic pressure, energy feedback can be realized, thereby improving energy utilization, reducing operating power consumption, and improving the economy of long-term tests such as fatigue and wear. Through the cooperation of the energy feedback loading transmission system and the six-degree-of-freedom platform, the angular, axial, radial and other deviations can be adjusted quickly and accurately, and can run stably, reliably and efficiently. It can adapt to couplings of different length series, couplings of different types, speeds and torque parameters, and can perform dynamic tests such as torsional vibration isolation test, torsional fatigue test, dynamic comprehensive compensation performance test, etc. Combined with the comprehensive deviation adjustment function of the six-degree-of-freedom platform 20, the torque transmission fluctuation and other performance of the test piece coupling 13 under different deviation conditions can be tested.

[0029] Specific implementation method 2: Combination Figures 1 to 4 This embodiment is described. The difference between this embodiment and the first embodiment is that this embodiment further includes a torque meter 14. Two torque meters 14 are respectively installed at the input end and the output end of the test piece coupling 13. The purpose of such design is to accurately measure the input and output torques during the test. Other components and connection methods are the same as those of the first embodiment.

[0030] Specific implementation method three: Combination Figures 1 to 4This embodiment is described. The difference between this embodiment and the specific embodiment 1 is that the bottom of the input transmission box 12 and the top of the output transmission box 15 are both provided with connection covers. The input transmission box 12 is installed on the top surface of the upper platform 21 through the connection cover, and the output transmission box 15 is installed on the bottom surface of the lower platform 23 through the connection cover. The connection cover is truncated cone-shaped, and the two truncated cone-shaped large bottoms of the connection cover are respectively connected to the top surface of the upper platform 21 and the bottom surface of the lower platform 23. The purpose of such design is to enhance the stability and reliability of the structure. Other components and connection methods are the same as those of the specific embodiment 1 or 2.

[0031] Specific implementation method four: Combination Figures 1 to 4 This embodiment is described. The difference between this embodiment and the specific embodiment 1 is that a flange is provided between the input end of the test piece coupling 13 and the output shaft of the input transmission box 12, and the input end of the test piece coupling 13 is connected to the output shaft of the input transmission box 12 via a flange. The other components and connection methods are the same as any one of the specific embodiments 1 to 3.

[0032] Specific implementation method five: Combination Figures 1 to 4 This embodiment is described. The difference between this embodiment and the specific embodiment 1 is that a flange is provided between the output end of the test piece coupling 13 and the input shaft of the output transmission box 15, and the output end of the test piece coupling 13 is connected to the input shaft of the output transmission box 15 through a flange. The purpose of such design is to enhance the stability and reliability of the structure. The other components and connection methods are the same as any one of the specific embodiments 1 to 4.

[0033] Specific implementation method six: Combination Figures 1 to 4 This embodiment is described. The difference between this embodiment and the specific embodiment 1 is that the upper platform 21 and the lower platform 23 are connected by six posture adjustment actuators 22; the six posture adjustment actuators 22 are evenly and symmetrically arranged. The upper platform 21 of the six-degree-of-freedom platform 20 is mainly equipped with a drive device 11 and a drive input transmission box 12 of the energy feedback loading transmission system 10, and the lower platform 23 is mainly equipped with an output transmission box 15 and a loading device 16. The purpose of such a design is to facilitate adjustment. The other components and connection methods are the same as any one of the specific embodiments 1 to 5.

[0034] Specific implementation method seven: Combination Figures 1 to 4This embodiment is described. The difference between this embodiment and the specific embodiment 1 is that the six posture adjustment actuators 22 change the parallel distance H between the upper platform 21 and the lower platform 23 through synchronous movement. The upper platform 21 and the lower platform 23 are connected by the posture adjustment actuator 22. The synchronous extension movement of the posture adjustment actuator 22 can realize the parallel movement of the upper platform 21 and the lower platform 23, thereby changing the parallel distance H of the table. A larger range of movement may realize the relevant tests of the test piece coupling 13 of different length series, and a smaller range of adjustment may realize the relevant performance test of the axial deviation of the coupling; other components and connection methods are the same as any one of the specific embodiments 1 to 6.

[0035] Specific implementation method eight: Combination Figures 1 to 4 This embodiment is described. The difference between this embodiment and the specific embodiment one is that the six posture adjustment actuators 22 achieve the displacement of the test piece coupling 13 along the X, Y and Z axis directions through the long and short combined movements. Through the long and short combined movements of the posture adjustment actuators 22, translation along the X and Y axes can be achieved, and rotation along the X, Y and Z axes can be achieved, so that the comprehensive simulation of the angular, axial, radial and other deviations of the test piece coupling 13 can be achieved. In addition, the six-degree-of-freedom platform 20 can be adjusted dynamically with high precision, and can simulate the actual posture conditions of the test piece coupling 13 during operation to conduct dynamic comprehensive compensation performance tests and other tests. Other components and connection methods are the same as any one of the specific embodiments one to seven.

[0036] Combination Figures 1 to 4 The working principle of the present invention is described:

[0037] By combining with the six-degree-of-freedom platform 20, high-precision dynamic adjustment of the coupling angle, axial direction, radial direction and other deviations can be achieved. At the same time, the axial adjustment can be used to adapt to the testing requirements of couplings of different length series. Through the speed and torque control of the driving device 11 and the loading device 16, the high-precision test of the torque meter 14 can realize functions such as torsional vibration isolation test, torsional fatigue test, and dynamic comprehensive compensation performance test. At the same time, the energy feedback loading transmission system 10 can ensure long-term stable, efficient and reliable operation.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multifunctional coupling test device, characterized in that It comprises an energy feedback loading transmission system (10) and a six-degree-of-freedom platform (20); The energy feedback loading transmission system (10) comprises a driving device (11), an input transmission box (12), a test piece coupling (13), an output transmission box (15) and a loading device (16); the output end of the shaft of the driving device (11) is connected to the input end of the shaft of the input transmission box (12); the input end of the test piece coupling (13) is connected to the output end of the shaft of the input transmission box (12); the output end of the test piece coupling (13) is connected to the input end of the shaft of the output transmission box (15); and the output end of the shaft of the transmission box (15) is connected to the input end of the shaft of the loading device (16); The six-degree-of-freedom platform (20) comprises an upper platform (21), a posture adjustment actuator (22) and a lower platform (23), wherein the upper platform (21) is arranged above the lower platform (23), and the upper platform (21) and the lower platform (23) are connected via the posture adjustment actuator (22); The input transmission box (12) is installed on the top surface of the upper platform (21), and the output transmission box (15) is installed on the bottom surface of the lower platform (23).

2. A multifunctional coupling test device according to claim 1, characterized in that It also includes a torque meter (14), and two torque meters (14) are respectively installed at the input end and the output end of the test piece coupling (13).

3. A multifunctional coupling test device according to claim 1, characterized in that: The bottom of the input transmission box (12) and the top of the output transmission box (15) are both provided with connection covers. The input transmission box (12) is mounted on the top surface of the upper platform (21) through the connection cover, and the output transmission box (15) is mounted on the bottom surface of the lower platform (23) through the connection cover.

4. A multifunctional coupling test device according to claim 1, characterized in that: A flange is provided between the input end of the test piece coupling (13) and the output shaft of the input transmission box (12), and the input end of the test piece coupling (13) and the output shaft of the input transmission box (12) are connected via the flange.

5. A multifunctional coupling test device according to claim 1, characterized in that: A flange is provided between the output end of the test piece coupling (13) and the input shaft of the output transmission box (15), and the output end of the test piece coupling (13) and the input shaft of the output transmission box (15) are connected via the flange.

6. A multifunctional coupling test device according to claim 1, characterized in that: The upper platform (21) and the lower platform (23) are connected via six posture adjustment actuators (22); the six posture adjustment actuators (22) are evenly and symmetrically arranged.

7. A multifunctional coupling test device according to claim 6, characterized in that: The six posture adjustment actuators (22) change the parallel distance H between the upper platform (21) and the lower platform (23) through synchronous movement.

8. A multifunctional coupling test device according to claim 6, characterized in that: The six posture adjustment actuators (22) achieve the displacement of the test piece coupling (13) along the X, Y and Z axis directions through long and short combined movements.

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