Gear test bench
By designing a gear testing bench, combined with transmission components and a detachable mounting base, the problems of accuracy in measuring gear contact fatigue strength and ease of replacement were solved, achieving stable and reliable test results and efficient gear replacement.
Patent Information
- Application Number
- CN202423303093.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing technologies are insufficient for effectively measuring the contact fatigue strength of gears. The lack of stable and reliable test fixtures leads to large test errors, and gear replacement is inconvenient.
A gear test bench was designed, comprising a test platform, a cylinder, a bracket, a drive component, a transmission assembly, and a thrust gauge. The thrust gauge is connected to the cylinder piston rod through the transmission assembly, and torque is transmitted by a drive motor. The gear to be tested is mounted through a detachable mounting base.
This method enables accurate measurement of gear contact fatigue strength, reduces test errors, and improves the convenience of gear replacement and the practicality of the test fixture.
Smart Images
Figure CN223551329U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of test fixtures, and more particularly to a gear test bench. Background Technology
[0002] Gears are fundamental components of transmission systems. Checking the contact fatigue of gears in a transmission system requires knowledge of the basic contact fatigue strength properties of the gear materials and manufacturing processes. The contact fatigue strength properties of gears are a fundamental performance indicator for evaluating the contact fatigue performance of gear transmission systems.
[0003] Therefore, designing a simple, reliable, and stable gear test fixture is a prerequisite for testing and comparing gear contact fatigue strength. Utility Model Content
[0004] To address the issue of measuring the contact fatigue strength of gears, this application provides a gear testing bench.
[0005] The gear testing bench provided in this application adopts the following technical solution:
[0006] A gear testing bench includes a testing platform and a cylinder mounted on the testing platform. The testing platform is provided with a bracket for positioning the gear to be tested, and a driving component for driving the gear to be tested to rotate is provided on the testing platform. A transmission assembly for transmitting the torque on the gear to be tested is provided below the gear to be tested, and a thrust gauge is provided between the transmission assembly and the piston rod of the cylinder.
[0007] Furthermore, the transmission assembly includes a transmission gear, a rack, and a slide rail. The transmission gear is rotatably mounted on the bracket. The slide rail is fixedly connected to the test platform. The extension direction of the slide rail is parallel to the extension direction of the piston rod of the cylinder. The bottom of the rack is provided with a groove for the slide rail to slide. The extension direction of the rack is parallel to the extension direction of the slide rail. The upper half of the transmission gear meshes with the gear to be tested, and the lower half of the transmission gear meshes with the rack. The end of the rack is connected to the end of the thrust gauge that is away from the piston rod of the cylinder.
[0008] Furthermore, the driving component includes a drive motor and a transmission shaft. One end of the transmission shaft is coaxially connected to the gear under test, and the output shaft of the drive motor is connected to the other end of the transmission shaft. The drive motor is mounted on the test platform.
[0009] Furthermore, the bracket includes two opposing upright plates, which enclose a receiving space for accommodating the transmission gear. The rotation shaft of the transmission gear passes through the two upright plates and is rotatably connected to them.
[0010] Furthermore, each of the upright plates has two reinforcing ribs on the side wall opposite to the receiving space.
[0011] Furthermore, a mounting base is provided on the outside of the gear to be tested, and the gear to be tested is rotatably mounted in the mounting base. The mounting base is detachably connected to the top of the upright plate by bolts.
[0012] In summary, this application includes at least one of the following beneficial technical effects:
[0013] By setting a transmission component below the gear under test and connecting a thrust meter between it and the piston rod of the cylinder, it is beneficial to measure the torque experienced by the gear under test during rotation, thus providing data for performance evaluation of the gear under test.
[0014] The drive motor ensures smooth and reliable torque transmission, which helps reduce errors during the test process;
[0015] The gear to be tested can be detachably connected to the top of the vertical plate using the mounting base, which facilitates the replacement of the gear to be tested and improves the practicality of the test fixture. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a gear testing bench according to this application.
[0017] Explanation of reference numerals in the attached drawings: 1. Test platform; 2. Cylinder; 3. Accommodation space; 4. Support; 41. Vertical plate; 5. Driving component; 51. Drive motor; 52. Transmission shaft; 6. Transmission assembly; 61. Transmission gear; 62. Rack; 63. Slide rail; 7. Slide groove; 8. Rotating shaft; 9. Reinforcing rib; 10. Mounting base; 11. Bolt; 12. Gear to be tested; 13. Thrust gauge. Detailed Implementation
[0018] The following is in conjunction with the appendix Figure 1 This application will be described in further detail.
[0019] This application discloses a gear testing bench.
[0020] Reference Figure 1 A gear testing bench includes a testing platform 1 and a cylinder 2 mounted on the testing platform 1. A bracket 4 for positioning a gear 12 to be tested is mounted on the testing platform 1. A driving component 5 for driving the gear 12 to be tested to rotate is mounted on the testing platform 1. A transmission component 6 for transmitting the torque received by the gear 12 to be tested is mounted below the gear 12. A thrust gauge 13 is mounted between the transmission component 6 and the piston rod of the cylinder 2.
[0021] The transmission assembly 6 includes a transmission gear 61, a rack 62, and a slide rail 63. The transmission gear 61 is rotatably mounted on the bracket 4. The slide rail 63 is fixedly connected to the test platform 1. The extension direction of the slide rail 63 is parallel to the extension direction of the piston rod of the cylinder 2. The bottom of the rack 62 is provided with a groove 7 for the slide rail 63 to slide. The extension direction of the rack 62 is parallel to the extension direction of the slide rail 63. The upper half of the transmission gear 61 meshes with the gear 12 to be tested, and the lower half of the transmission gear 61 meshes with the rack 62. The end of the rack 62 is connected to the end of the thrust gauge 13 that is away from the piston rod of the cylinder 2.
[0022] The bracket 4 includes two upright plates 41 arranged opposite to each other. The two upright plates 41 enclose a receiving space 3 for accommodating the transmission gear 61. The rotating shaft 8 of the transmission gear 61 passes through the two upright plates 41 and is rotatably connected to the two upright plates 41. Each upright plate 41 has two reinforcing ribs 9 on its side wall away from the receiving space 3.
[0023] When testing the contact fatigue strength of the gear 12 under test, the gear 12 under test is first positioned and installed on the bracket 4. The drive unit 5 is started to drive the gear 12 under test to rotate. The gear 12 under test drives the transmission gear 61 to rotate. The transmission gear 61 drives the rack 62 to slide on the slide rail 63. The rack 62 squeezes the piston rod of the cylinder 2. The pressure difference at both ends is measured by the thrust gauge 13, and the contact fatigue strength of the gear 12 under test is calculated.
[0024] Reference Figure 1 The driving component 5 includes a drive motor 51 and a transmission shaft 52. One end of the transmission shaft 52 is coaxially connected to the gear 12 under test, and the output shaft of the drive motor 51 is connected to the other end of the transmission shaft 52. The drive motor 51 is mounted on the test platform 1.
[0025] The drive motor 51 ensures smooth and reliable torque transmission, which helps reduce errors during the test.
[0026] Reference Figure 1 A mounting base 10 is provided outside the gear 12 to be tested. The gear 12 to be tested is rotatably mounted in the mounting base 10. The mounting base 10 is detachably connected to the top of the upright plate 41 by bolts 11.
[0027] The gear 12 to be tested is detachably connected to the top of the vertical plate 41 using the mounting base 10, which facilitates the replacement of the gear 12 to be tested and improves the practicality of the test fixture.
[0028] The implementation principle of a gear testing bench in this application embodiment is as follows: When testing the contact fatigue strength of the gear 12 to be tested, the gear 12 to be tested is first positioned and installed on the bracket 4. The drive component 5 is started to drive the gear 12 to be tested to rotate. The gear 12 to be tested drives the transmission gear 61 to rotate. The transmission gear 61 drives the rack 62 to slide on the slide rail 63. The rack 62 squeezes the piston rod of the cylinder 2. The torque is measured by the thrust gauge 13, and the contact fatigue strength of the gear 12 to be tested is calculated.
[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A gear testing bench, characterized in that: The test platform (1) includes a test platform (1) and a cylinder (2) mounted on the test platform (1). The test platform (1) is provided with a bracket (4) for positioning the gear (12) to be tested. The test platform (1) is provided with a drive component (5) for driving the gear (12) to be tested to rotate. A transmission component (6) for transmitting the torque on the gear (12) to be tested is provided below the gear (12). A thrust gauge (13) is provided between the transmission component (6) and the piston rod of the cylinder (2).
2. The gear testing bench according to claim 1, characterized in that: The transmission assembly (6) includes a transmission gear (61), a rack (62), and a slide rail (63). The transmission gear (61) is rotatably mounted on the bracket (4). The slide rail (63) is fixedly connected to the test platform (1). The extension direction of the slide rail (63) is parallel to the extension direction of the piston rod of the cylinder (2). The bottom of the rack (62) is provided with a groove (7) for the slide rail (63) to slide. The extension direction of the rack (62) is parallel to the extension direction of the slide rail (63). The upper half of the transmission gear (61) meshes with the gear to be tested (12). The lower half of the transmission gear (61) meshes with the rack (62). The end of the rack (62) is connected to the end of the thrust gauge (13) away from the piston rod of the cylinder (2).
3. The gear testing bench according to claim 1, characterized in that: The driving component (5) includes a drive motor (51) and a transmission shaft (52). One end of the transmission shaft (52) is coaxially connected to the gear (12) to be tested. The output shaft of the drive motor (51) is connected to the other end of the transmission shaft (52). The drive motor (51) is mounted on the test platform (1).
4. A gear testing bench according to claim 2, characterized in that: The bracket (4) includes two opposing upright plates (41), which enclose a receiving space (3) for accommodating the transmission gear (61). The rotation shaft (8) of the transmission gear (61) passes through the two upright plates (41) and is rotatably connected to them.
5. A gear testing bench according to claim 4, characterized in that: Each of the uprights (41) has two reinforcing ribs (9) on the side wall opposite to the receiving space (3).
6. A gear testing bench according to claim 4, characterized in that: The gear to be tested (12) is provided with a mounting base (10), and the gear to be tested (12) is rotatably disposed in the mounting base (10). The mounting base (10) is detachably connected to the top of the upright plate (41) by bolts (11).