Face gear and spur gear composite fatigue test device and test method thereof

Abstract

The present application provides a kind of face gear and spur gear composite fatigue test device, it includes turntable assembly, face gear assembly, spur gear assembly and face gear spur gear assembly, face gear assembly and spur gear assembly are respectively arranged in the both sides position of turntable assembly, face gear spur gear assembly is arranged between turntable assembly and face gear assembly, the fatigue limit of two different types of gears can be tested respectively by the cooperation of each component, the working performance of face gear and spur gear transmission is directly tested and compared, by the integrated design of large face gear and large spur gear, the working condition load test of two sets of transmission systems of face gear group and spur gear group can be completed once installation, avoid the inaccuracy of comparative experimental data caused by installation error, provide two kinds of test methods using magnetic powder brake to provide load torque and using spur motor or face motor as load torque, test method is more diverse, test result can be used for quantitative analysis of fatigue failure of gear.

Description

Technical Field

[0001] This invention relates to the field of testing technology, specifically to a fatigue testing device and method for a combination of face gears and spur gears. Background Technology

[0002] Traditional spur gear transmission systems exhibit numerous disadvantages due to their heavy weight and insufficient transmission stability. In contrast, theoretically, gear structures offer stronger transmission stability, higher load-bearing capacity, and lower noise. Testing the performance of face gears is necessary, but existing test turntables suffer from problems such as complex comparative experimental schemes for two transmission systems, inconvenient workbench assembly and disassembly, and insufficient scientific rigor of experimental results. These limitations prevent a direct and intuitive test and comparison of the working performance of face gear and spur gear transmissions.

[0003] For example, document CN116337297A discloses a gear single-tooth torque testing system and method. The system includes a testing device and a host computer device. The testing device includes a clamping component, a torque transmission component, a drive component, and an information acquisition component. During the test, the rotating test gear and the gear under test are fully meshed. The host computer device sends a test command to the testing device to start the drive component from rotating. The drive component drives the rotating test gear on the clamping component to rotate through the torque transmission component until the gear under test is destroyed. This provides a testing device that can automatically test the static torque parameter of a single tooth of a gear, improving gear testing efficiency.

[0004] Furthermore, document CN110470468B discloses a bearing and gear testing bench, including a transmission reduction mechanism, a combined base, a helical loading mechanism, a gear center distance adjustment mechanism, and a base platform mechanism. The transmission reduction mechanism is used to transmit the power output from the motor to the gear ring of the combined base. The combined base is used to install the thrust cylindrical roller bearing and the helical loading mechanism. The helical loading mechanism is used to clamp and load the thrust cylindrical roller bearing to be tested. The gear center distance adjustment mechanism is used to adjust the center distance between the gear ring and the pinion in the transmission reduction mechanism.

[0005] The aforementioned literature only tests a single gear and cannot achieve comparative testing of two types of gears using a single device. Therefore, it is necessary to design a composite fatigue testing device and test method for face gears and spur gears. Summary of the Invention

[0006] To address the problems existing in the prior art, this invention provides a composite fatigue testing device and method for face gears and spur gears. By integrating face gear and spur gear components, the fatigue limits of the two different types of gears can be tested separately using a turntable assembly. This allows for a direct test and comparison of the working performance of face gear and spur gear transmissions. The integrated design of the face gear and spur gear assembly enables the completion of load tests on two transmission systems with a single installation, avoiding inaccurate comparative experimental data due to installation errors. The invention also provides two testing methods: using the turntable assembly as the load torque and using either a spur gear motor or a face gear motor as the load torque. This provides greater testing versatility and more convincing test results.

[0007] This invention provides a composite fatigue testing device and method for face gears and spur gears, comprising a turntable assembly, a face gear assembly, a spur gear assembly, and a face-toothed spur gear assembly. The face gear assembly and the spur gear assembly are respectively disposed on both sides of the turntable assembly, and the face-toothed spur gear assembly is disposed between the turntable assembly and the face gear assembly and the spur gear assembly. The turntable assembly includes a base, a magnetic powder brake, a brake bracket, a turntable base, a turntable spindle, and a turntable. The magnetic powder brake is disposed inside the base and connected to the base. A first end of the brake bracket is connected to the magnetic powder brake, a second end of the turntable base is connected to the brake bracket, a first end of the turntable spindle is connected to the output shaft of the magnetic powder brake, and the turntable is connected to the second end of the turntable spindle. The face gear assembly includes a face gear motor adjusting pad, a face gear motor bracket, a face gear motor, a face gear connecting shaft, and a small face gear. The first end of the face gear motor adjusting pad is connected to the face of the turntable base in the turntable assembly. The gear assembly comprises a gear boss connection, a gear motor bracket (first end connected to the gear motor adjusting pad, second end connected to the gear motor fixing end connected to the gear motor bracket (second end connected to the gear motor fixing end), a gear connecting shaft connected to the output shaft of the gear motor, and a small gear connected to the gear connecting shaft; the spur gear assembly includes a spur motor adjusting pad, a spur motor bracket, a spur motor, a spur connecting shaft, and a small spur gear, the first end of the spur motor adjusting pad connected to the spur boss of the turntable assembly, the first end of the spur motor bracket connected to the second end of the spur motor adjusting pad, the fixed end of the spur motor connected to the second end of the spur motor bracket, the gear connecting shaft connected to the output shaft of the spur motor, and the small spur gear connected to the gear connecting shaft; the gear spur gear assembly includes a large gear and a large spur gear, the large gear being positioned below the large spur gear, a stepped structure being positioned below the large spur gear, and the gear spur gear assembly being connected to the turntable.

[0008] Preferably, the turntable base is provided with a face tooth boss and a straight tooth boss on both sides.

[0009] Preferably, the turntable spindle is disposed inside the turntable base, and the turntable spindle is rotatably connected to the turntable base via bearings.

[0010] Preferably, the outer diameter of the large face gear is larger than the root circle diameter of the large spur gear, and the module and number of teeth parameters of the large face gear and the large spur gear are the same.

[0011] Preferably, the face gear motor and the spur gear motor are the same type of motor, and have the same torque when driven.

[0012] Preferably, the axis of the small face gear is perpendicular to the axis of the face gear spur gear assembly, the axis of the small spur gear is the same as the axis of the face gear spur gear assembly, and the axis of the turntable spindle is the same as the axis of the face gear spur gear assembly.

[0013] Preferably, the small face gear meshes with the large face gear to form a face gear set, and the small spur gear meshes with the large spur gear to form a spur gear set.

[0014] A second aspect of the present invention provides a test method for the aforementioned combined fatigue testing apparatus for face gears and spur gears, comprising the following steps:

[0015] S1. Start the face gear motor. The face gear motor drives the small face gear to rotate. The small face gear drives the large face gear to mesh and transmit power. The large face gear drives the turntable to rotate. The magnetic powder brake provides reverse torque through the turntable spindle to test the face gear set.

[0016] S2. Start the spur gear motor. The spur gear motor drives the small spur gear to rotate. The small spur gear drives the large spur gear to mesh and transmit power. The large spur gear drives the turntable to rotate. The magnetic powder brake provides reverse torque through the turntable spindle to test the spur gear set.

[0017] S3. After a long period of testing, the face gear set and spur gear set reached their fatigue limits respectively. The time of each transmission was recorded and the wear of the gears was observed to obtain the performance comparison curves of the face gear set and the spur gear set.

[0018] A third aspect of the present invention provides a test method for the aforementioned combined fatigue testing apparatus for face gears and spur gears, comprising the following steps:

[0019] S1. Start the face gear motor. The face gear motor drives the small face gear to rotate. The small face gear drives the large face gear to mesh and transmit. The large face gear drives the turntable to rotate. The spur gear motor reverses and provides load torque through the large spur gear to test the face gear set.

[0020] S2. Start the spur gear motor. The spur gear motor drives the small spur gear to rotate. The small spur gear drives the large spur gear to mesh and transmit power. The large spur gear drives the turntable to rotate. The face gear motor reverses and provides load torque through the large face gear to test the spur gear set.

[0021] S3. After a long period of testing, the face gear set and spur gear set reached their fatigue limits respectively. The time of each transmission was recorded and the wear of the gears was observed to obtain the performance comparison curves of the face gear set and the spur gear set.

[0022] The features and beneficial effects of this invention are:

[0023] 1. The present invention relates to a combined fatigue testing device and method for face gears and spur gears. This device employs an integrated design, utilizing the interaction between face gear assemblies, spur gear assemblies, and a turntable assembly. It allows for the separate testing and comparison of the fatigue limits of two different types of gears, providing a direct visual test and comparison of the working performance of face gear and spur gear transmissions.

[0024] 2. The fatigue testing device and method for face gear and spur gear of the present invention, through the integrated design of large face gear and large spur gear and the stepped structure design, avoids interference between face gear set and spur gear set during the testing process, and realizes the working condition load test of two transmission systems of face gear set and spur gear set in one installation, avoiding inaccurate comparative experimental data due to installation errors.

[0025] 3. The fatigue testing device and method for combined face gears and spur gears of the present invention provide two testing methods during the testing of face gear sets or spur gear sets: one is to use a magnetic powder brake to provide load torque, and the other is to use a spur gear motor or face gear motor as the load torque. The testing methods are more diverse and the test results are more convincing. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the fatigue testing device for surface gears and spur gears of the present invention;

[0027] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the turntable assembly, the face gear assembly, and the face spur gear assembly in this invention.

[0029] Figure 4 This is a schematic diagram of the structure of the turntable assembly, spur gear assembly and face gear spur gear assembly in this invention.

[0030] Figure 5 This is a schematic diagram of the structure of the large-face gear and the small-face gear in this invention;

[0031] Figure 6This is a schematic diagram of the structure of the large spur gear and the small spur gear in this invention.

[0032] Key reference numerals:

[0033] Turntable assembly 1, base 11, magnetic powder brake 12, brake bracket 13, turntable base 14, face gear boss 141, spur gear boss 142, turntable spindle 15, turntable 16, face gear assembly 2, face gear motor adjusting pad 21, face gear motor bracket 22, face gear motor 23, face gear connecting shaft 24, small face gear 25, spur gear assembly 3, spur gear motor adjusting pad 31, spur gear motor bracket 32, spur gear motor 33, spur gear connecting shaft 34, small spur gear 35, face gear spur gear assembly 4, large face gear 41, large spur gear 42. Detailed Implementation

[0034] To fully describe the technical content, structural features, objectives, and effects of this invention, a detailed description will be provided below in conjunction with the accompanying drawings.

[0035] The present invention provides a combined fatigue testing device for face gears and spur gears, such as... Figure 1 and Figure 2 As shown, it includes a turntable assembly 1, a face gear assembly 2, a spur gear assembly 3, and a face-tooth spur gear assembly 4. The face gear assembly 2 and the spur gear assembly 3 are respectively located on both sides of the turntable assembly 1, and the face-tooth spur gear assembly 4 is located between the turntable assembly 1 and the face gear assembly 2 and the spur gear assembly 3. The turntable assembly 1 includes a base 11, a magnetic powder brake 12, a brake bracket 13, a turntable base 14, a turntable spindle 15, and a turntable 16. The magnetic powder brake 12 is located inside the base 11. The turntable 14 is connected to the base 11, the first end of the brake bracket 13 is connected to the magnetic powder brake 12, the turntable base 14 is connected to the second end of the brake bracket 13, the first end of the turntable spindle 15 is connected to the output shaft of the magnetic powder brake 12, and the turntable 16 is connected to the second end of the turntable spindle 15. The turntable base is provided with a face tooth boss 141 and a straight tooth boss 142 on both sides. The turntable spindle 15 is located inside the turntable base 14 and is rotatably connected to the turntable base 14 through bearings.

[0036] like Figure 3 As shown, the face gear assembly 2 includes a face gear motor adjusting pad 21, a face gear motor bracket 22, a face gear motor 23, a face gear connecting shaft 24, and a small face gear 25. The first end of the face gear motor adjusting pad 21 is connected to the face gear boss 141 of the turntable base 14 in the turntable assembly 1. The first end of the face gear motor bracket 22 is connected to the second end of the face gear motor adjusting pad 21. The fixed end of the face gear motor 23 is connected to the second end of the face gear motor bracket 22. The face gear connecting shaft 24 is connected to the output shaft of the face gear motor 23. The small face gear 25 is connected to the face gear connecting shaft 24.

[0037] like Figures 4-6 As shown, the spur gear assembly 3 includes a spur motor adjusting pad 31, a spur motor bracket 32, a spur motor 33, a spur connecting shaft 34, and a small spur gear 35. The first end of the spur motor adjusting pad 31 is connected to the spur gear boss 142 of the turntable base 14 in the turntable assembly 1. The first end of the spur motor bracket 32 ​​is connected to the second end of the spur motor adjusting pad 31. The fixed end of the spur motor 33 is connected to the second end of the spur motor bracket 32. The spur connecting shaft 34 is connected to the output shaft of the spur motor 33. The small spur gear 35 is connected to the spur connecting shaft 34. The face gear motor 23 and the spur gear motor 33 are the same motor and have the same torque when driven. The face gear spur gear assembly 4 includes a large face gear 41 and a large face gear 45. A spur gear 42 and a large face gear 41 are positioned below the large spur gear 42. A stepped structure is provided below the large spur gear 42. The face gear assembly 4 is connected to the turntable 16. The outer diameter of the large face gear 41 is larger than the root circle diameter of the large spur gear 42. The module and number of teeth parameters of the large face gear 41 and the large spur gear 42 are the same. The axis of the small face gear 25 is perpendicular to the axis of the face gear assembly 4, and the axis of the small spur gear 35 is the same as the axis of the face gear assembly 4. The axis of the turntable spindle 15 is the same as the axis of the face gear assembly 4. The small face gear 25 meshes with the large face gear 41 to form a face gear set, and the small spur gear 35 meshes with the large spur gear 42 to form a spur gear set.

[0038] like Figures 1-6 As shown, the present invention provides a test method for the aforementioned combined fatigue testing apparatus for face gears and spur gears, comprising the following steps:

[0039] S1. Start the face gear motor. The face gear motor drives the small face gear to rotate. The small face gear drives the large face gear to mesh and transmit power. The large face gear drives the turntable to rotate. The magnetic powder brake provides reverse torque through the turntable spindle to test the face gear set.

[0040] S2. Start the spur gear motor. The spur gear motor drives the small spur gear to rotate. The small spur gear drives the large spur gear to mesh and transmit power. The large spur gear drives the turntable to rotate. The magnetic powder brake provides reverse torque through the turntable spindle to test the spur gear set.

[0041] S3. After a long period of testing, the face gear set and spur gear set reached their fatigue limits respectively. The time of each transmission was recorded and the wear of the gears was observed to obtain the performance comparison curves of the face gear set and the spur gear set.

[0042] like Figures 1-6 As shown, the second test method of the present invention for the aforementioned combined fatigue testing device for face gears and spur gears includes the following steps:

[0043] S1. Start the face gear motor. The face gear motor drives the small face gear to rotate. The small face gear drives the large face gear to mesh and transmit. The large face gear drives the turntable to rotate. The spur gear motor reverses and provides load torque through the large spur gear to test the face gear set.

[0044] S2. Start the spur gear motor. The spur gear motor drives the small spur gear to rotate. The small spur gear drives the large spur gear to mesh and transmit power. The large spur gear drives the turntable to rotate. The face gear motor reverses and provides load torque through the large face gear to test the spur gear set.

[0045] S3. After a long period of testing, the face gear set and spur gear set reached their fatigue limits respectively. The time of each transmission was recorded and the wear of the gears was observed to obtain the performance comparison curves of the face gear set and the spur gear set.

[0046] The following describes in further detail the composite fatigue testing device and method for face gears and spur gears of the present invention with reference to embodiments.

[0047] The working process of the combined fatigue testing device for face gears and spur gears of this invention:

[0048] First, adjust the spatial positions of the small face gear and the small spur gear respectively by adjusting the face gear shims and the spur gear shims, so that the small face gear and the large face gear, and the small spur gear and the large spur gear meet the meshing requirements.

[0049] Then conduct the test:

[0050] Start the face gear motor to rotate the small face gear. The small face gear meshes with the large face gear, driving the turntable to rotate. A reverse load is provided through the magnetic powder brake connected to the rotation to test the face gear set. After the face gear set reaches its fatigue limit, turn off the face gear motor, record the test time, and observe the wear of the face gear set. Similarly, start the spur gear motor, provide a reverse load through the magnetic powder brake, and test the spur gear set. After the spur gear set reaches its fatigue limit, record the test time and observe the performance comparison curve and wear of the spur gear set.

[0051] Another method can be used for testing: Start the face gear motor to rotate the small face gear, which meshes with the large face gear in the face gear spur gear assembly. Simultaneously, the large spur gear in the face gear spur gear assembly meshes with the small spur gear. Start the spur gear motor, which then reverses direction, providing a reverse load through the spur gear motor connected to the small spur gear. Test the face gear assembly. After the face gear assembly reaches its fatigue limit, turn off both the face gear motor and the spur gear motor, record the test time, and observe the wear of the face gear assembly. Similarly, start the spur gear motor, and through its reverse direction, provide a reverse load to test the spur gear assembly. After the spur gear assembly reaches its fatigue limit, record the test time and observe the wear of the spur gear assembly.

[0052] Finally, by comparing the test results of the two sets of gears, a performance comparison curve of the face gear set and the spur gear set is obtained, thereby obtaining the performance difference between the two.

[0053] This invention relates to a combined fatigue testing device and method for face gears and spur gears. By integrating face gear assembly 2 and spur gear assembly 3, the fatigue limits of two different types of gears can be tested separately using turntable assembly 1. This allows for a direct test and comparison of the working performance of face gear and spur gear transmissions. Through the integrated design of face gear and spur gear assembly 4, the working load test of two transmission systems can be completed in a single installation, avoiding inaccurate comparative experimental data due to installation errors. It provides two testing methods: using turntable assembly 1 as the load torque and using either spur gear motor 33 or face gear motor 23 as the load torque. This provides greater testing diversity and more convincing test results.

[0054] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A fatigue testing device for a combination of face gears and spur gears, characterized in that, It includes a turntable assembly, a face gear assembly, a spur gear assembly, and a face-toothed spur gear assembly, wherein the face gear assembly and the spur gear assembly are respectively disposed on both sides of the turntable assembly; and the face-toothed spur gear assembly is disposed between the turntable assembly and the face gear assembly. The turntable assembly includes a base, a magnetic powder brake, a brake bracket, a turntable base, a turntable spindle, and a turntable. The magnetic powder brake is disposed inside the base and connected to the base. A first end of the brake bracket is connected to the magnetic powder brake. The turntable base is connected to a second end of the brake bracket. A first end of the turntable spindle is connected to the output shaft of the magnetic powder brake. The turntable is connected to a second end of the turntable spindle. The face gear assembly includes a face gear motor adjusting pad, a face gear motor bracket, a face gear motor, a face gear connecting shaft, and a small face gear. The first end of the face gear motor adjusting pad is connected to the face gear boss of the turntable base in the turntable assembly. The first end of the face gear motor bracket is connected to the second end of the face gear motor adjusting pad. The fixed end of the face gear motor is connected to the second end of the face gear motor bracket. The face gear connecting shaft is connected to the output shaft of the face gear motor. The small face gear is connected to the face gear connecting shaft. The spur gear assembly includes a spur gear motor adjusting pad, a spur gear motor bracket, a spur gear motor, a spur gear connecting shaft, and a small spur gear. The first end of the spur gear motor adjusting pad is connected to the spur gear boss of the turntable base in the turntable assembly. The first end of the spur gear motor bracket is connected to the second end of the spur gear motor adjusting pad. The fixed end of the spur gear motor is connected to the second end of the spur gear motor bracket. The spur gear connecting shaft is connected to the output shaft of the spur gear motor. The small spur gear is connected to the spur gear connecting shaft. The face gear spur gear assembly includes a large face gear and a large spur gear. The large face gear is located below the large spur gear, and a stepped structure is provided below the large spur gear. The face gear spur gear assembly is connected to the turntable.

2. The combined fatigue testing device for face gears and spur gears according to claim 1, characterized in that, The turntable base is provided with a face tooth boss and a straight tooth boss on both sides respectively.

3. The combined fatigue testing device for face gears and spur gears according to claim 1, characterized in that, The turntable spindle is located inside the turntable base, and the turntable spindle is rotatably connected to the turntable base via bearings.

4. The combined fatigue testing device for face gears and spur gears according to claim 1, characterized in that, The outer diameter of the large face gear is larger than the root circle diameter of the large spur gear, and the module and number of teeth parameters of the large face gear and the large spur gear are the same.

5. The combined fatigue testing device for face gears and spur gears according to claim 1, characterized in that, The face gear motor and the spur gear motor are the same type of motor, and they have the same torque when driven.

6. The combined fatigue testing device for face gears and spur gears according to claim 1, characterized in that, The axis of the small face gear is perpendicular to the axis of the face gear spur gear assembly, the axis of the small spur gear is the same as the axis of the face gear spur gear assembly, and the axis of the turntable spindle is the same as the axis of the face gear spur gear assembly.

7. The combined fatigue testing device for face gears and spur gears according to claim 1, characterized in that, The small face gear meshes with the large face gear to form a face gear set, and the small spur gear meshes with the large spur gear to form a spur gear set.

8. A fatigue testing method for a combined fatigue testing apparatus for face gears and spur gears as described in any one of claims 1 to 7, characterized in that, Includes the following steps: S1. Start the face gear motor. The face gear motor drives the small face gear to rotate. The small face gear drives the large face gear to mesh and transmit power. The large face gear drives the turntable to rotate. The magnetic powder brake provides reverse torque through the turntable spindle to test the face gear set. S2. Start the spur gear motor. The spur gear motor drives the small spur gear to rotate. The small spur gear drives the large spur gear to mesh and transmit power. The large spur gear drives the turntable to rotate. The magnetic powder brake provides reverse torque through the turntable spindle to test the spur gear set. S3. After a long period of testing, the face gear set and spur gear set reached their fatigue limits respectively. The time of each transmission was recorded and the wear of the gears was observed to obtain the performance comparison curves of the face gear set and the spur gear set.

9. A fatigue testing method for a combined fatigue testing apparatus for face gears and spur gears as described in any one of claims 1 to 7, characterized in that, Includes the following steps: S1. Start the face gear motor. The face gear motor drives the small face gear to rotate. The small face gear drives the large face gear to mesh and transmit. The large face gear drives the turntable to rotate. The spur gear motor reverses and provides load torque through the large spur gear to test the face gear set. S2. Start the spur gear motor. The spur gear motor drives the small spur gear to rotate. The small spur gear drives the large spur gear to mesh and transmit power. The large spur gear drives the turntable to rotate. The face gear motor reverses and provides load torque through the large face gear to test the spur gear set. S3. After a long period of testing, the face gear set and spur gear set reached their fatigue limits respectively. The time of each transmission was recorded and the wear of the gears was observed to obtain the performance comparison curves of the face gear set and the spur gear set.

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