Static test bench for plastic gear

Abstract

The utility model discloses a plastic gear statics test bench, which comprises a base and an operation bench on the top of the base, a pushing test mechanism for statics test is arranged outside the operation bench, and a test adjusting mechanism for adjusting to test plastic gears with different sizes and specifications is arranged in the operation bench. According to the statics test bench for the plastic gear, the worm is driven to rotate by starting the first motor, then the worm wheel disc is driven to rotate, the position of the metal gear can be adjusted in cooperation with assistance of the second telescopic rod, and the outer teeth of the metal gear are aligned with to-be-tested plastic gears of different sizes and specifications. Meanwhile, a second motor is started to drive a threaded rod to rotate, a connecting sleeve slides under the limitation of a limiting frame, the height of the metal gear is accurately adjusted, it is ensured that the metal gear and the plastic gear are located on the same horizontal plane, and the testing precision and reliability are further improved.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic gear testing devices, specifically to a plastic gear static testing platform. Background Technology

[0002] With the widespread application of plastic gears in mechanical transmission systems, accurate evaluation of their static properties has become crucial. For ease of testing, a plastic gear static testing bench is often used to perform precise static torque tests on plastic gears, ensuring their reliability and durability in practical applications.

[0003] In existing technologies, such as the static testing bench for plastic gears disclosed in Chinese invention patent application (publication number CN105092242A), the only requirement is to replace the corresponding metal gear and adjust the center distance by moving the stage when different models of plastic gears are being tested, resulting in low manufacturing and usage costs. However, in practical applications, this existing device requires replacing different metal gears when testing plastic gears of different sizes and specifications, leading to cumbersome operation and low testing efficiency. Furthermore, some defective plastic gears are prone to tooth breakage during testing, causing splintering and endangering the safety of operators and the testing environment. Utility Model Content

[0004] The purpose of this invention is to provide a static testing platform for plastic gears, which can adjust the position of the metal gears so that their external teeth are aligned with plastic gears of different sizes and specifications to be tested.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a static testing platform for plastic gears, comprising a base and an operating platform on top thereof. The operating platform is externally equipped with a pushing testing mechanism for static testing. The pushing testing mechanism includes a first electric telescopic rod, which is positioned at the top of the operating platform. The output end of the first electric telescopic rod is equipped with a movable seat, the top of which can hold the plastic gear to be tested. The top of the plastic gear is equipped with a torque wrench for testing static torque. The operating platform is equipped with a testing adjustment mechanism for testing plastic gears of different sizes and specifications.

[0006] The test adjustment mechanism includes a first adjustment component and a second adjustment component.

[0007] The first adjustment component includes a support plate disposed on the top of the operating table, a worm gear disk rotatably disposed on the support plate, and a second telescopic rod disposed at the top of the worm gear disk.

[0008] The second adjustment component includes a metal gear that can contact the plastic gear.

[0009] Preferably, the first adjustment component further includes a mounting bracket disposed at the top of the operating table, a first motor disposed outside the mounting bracket, and a worm gear being drivenly connected to the output shaft of the first motor, the worm gear meshing with a worm wheel.

[0010] Preferably, the output end of the second telescopic rod is rotatably connected to the bottom end of the metal gear.

[0011] Preferably, the second adjustment component further includes a mounting base disposed in the operating table, wherein a second motor is disposed in the mounting base, a threaded rod is drivenly connected to the output shaft of the second motor, and a connecting sleeve is connected to the external thread of the threaded rod.

[0012] Preferably, the top end of the connecting sleeve is fixedly connected to the bottom of the metal gear.

[0013] Preferably, the second adjustment component further includes a limiting frame disposed on the top of the support plate, and the connecting sleeve is slidably disposed in the limiting frame.

[0014] Preferably, the top of the base is provided with a splash-proof mechanism to block flying debris generated during the test. The splash-proof mechanism includes a fixed frame and a connecting seat at the top of the base. An adjustment frame is slidably arranged in the fixed frame.

[0015] Preferably, the bottom end of the adjustment frame is slidably disposed in the connecting seat, and the top of the adjustment frame is fixedly provided with a handle.

[0016] Compared with the prior art, this utility model provides a plastic gear static testing platform, which has the following features:

[0017] Beneficial effects:

[0018] 1. This static testing bench for plastic gears, by starting a first motor to drive the worm gear to rotate, which in turn drives the worm wheel to rotate, and with the assistance of a second telescopic rod, can adjust the position of the metal gear so that its external teeth are aligned with the plastic gears of different sizes and specifications to be tested. Simultaneously, by starting a second motor to drive the threaded rod to rotate, and under the constraint of the limit frame, the connecting sleeve slides, achieving precise adjustment of the height of the metal gear, ensuring that it is on the same horizontal plane as the plastic gear, further improving the accuracy and reliability of the test.

[0019] 2. This plastic gear static testing stand allows the adjustment frame to slide within the fixed frame by pulling the handle, effectively blocking flying debris generated during the test. This design not only improves the safety of the testing process but also ensures the smooth operation of the adjustment frame through the stable sliding of the connecting seat, avoiding safety accidents caused by improper blocking of flying debris and providing operators with a safer and more reliable testing environment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of a plastic gear static testing platform according to the present invention. Figure 1 .

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of a plastic gear static testing platform according to the present invention. Figure 2 .

[0022] Figure 3 This is a three-dimensional structural diagram of the first adjustment component in a plastic gear static testing platform according to the present invention.

[0023] Figure 4 This is a three-dimensional structural diagram of the second adjustment component in a plastic gear static testing platform according to the present invention.

[0024] Figure 5 This is a partial disassembly diagram of the second adjustment component in a plastic gear static testing platform according to the present invention.

[0025] Figure 6 This is a three-dimensional structural diagram of the splash-proof mechanism in a plastic gear static testing platform according to the present invention.

[0026] In the diagram: 1. Base; 2. Operating table; 3. Pushing test mechanism; 31. First electric telescopic rod; 32. Movable seat; 33. Plastic gear; 34. Torque wrench; 4. Test adjustment mechanism; 41. First adjustment component; 411. Mounting bracket; 412. First motor; 413. Worm gear; 414. Support plate; 415. Worm gear disc; 416. Second telescopic rod; 42. Second adjustment component; 421. Metal gear; 422. Mounting bracket; 423. Second motor; 424. Threaded rod; 425. Limiting bracket; 426. Connecting sleeve; 5. Splash protection mechanism; 51. Fixed frame; 52. Connecting seat; 53. Adjusting frame; 54. Handle. Detailed Implementation

[0027] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0028] Example 1: Please refer to Figures 1-5This utility model provides a technical solution: a static testing bench for plastic gears, including a base 1 and an operating platform 2 on top of it. The operating platform 2 is provided with a pushing testing mechanism 3 for performing static testing. The pushing testing mechanism 3 is provided with a first electric telescopic rod 31, which is located at the top of the operating platform 2. The output end of the first electric telescopic rod 31 is provided with a movable seat 32, and the top of the movable seat 32 can hold the plastic gear 33 to be tested. The top of the plastic gear 33 is provided with a torque wrench 34 for testing static torque. The operating platform 2 is provided with a test adjustment mechanism 4 for adjusting to test plastic gears 33 of different sizes and specifications.

[0029] The test adjustment mechanism 4 includes a first adjustment component 41 and a second adjustment component 42. The test adjustment mechanism 4 enables flexible adaptation to plastic gears 33 of different sizes, improving the versatility and practicality of the test bench.

[0030] The first adjustment component 41 includes a support plate 414 disposed on the top of the operating table 2, a worm gear 415 rotatably disposed on the support plate 414, and a second telescopic rod 416 disposed on the top of the worm gear 415.

[0031] The second adjustment assembly 42 includes a metal gear 421 that can contact the plastic gear 33.

[0032] Furthermore, the first adjustment assembly 41 also includes a mounting bracket 411 disposed at the top of the operating table 2. A first motor 412 is disposed outside the mounting bracket 411, and a worm gear 413 is drivenly connected to the output shaft of the first motor 412. The worm gear 413 meshes with a worm wheel 415. By driving the worm gear 413 to rotate through the first motor 412, the worm wheel 415 is driven to rotate, thereby achieving precise adjustment of the position of the metal gear 421 and improving the accuracy and efficiency of the test.

[0033] Furthermore, the output end of the second telescopic rod 416 is rotatably connected to the bottom end of the metal gear 421. The design of the second telescopic rod 416 allows the metal gear 421 to rotate stably and flexibly, facilitating meshing tests with the plastic gear 33.

[0034] Furthermore, the second adjustment assembly 42 also includes a mounting base 422 disposed in the operating table 2. A second motor 423 is disposed in the mounting base 422, and a threaded rod 424 is driven and connected to the output shaft of the second motor 423. A connecting sleeve 426 is connected to the external thread of the threaded rod 424. By driving the threaded rod 424 to rotate through the second motor 423, the connecting sleeve 426 moves up and down under the action of the thread, realizing precise adjustment of the height of the metal gear 421, and further improving the accuracy of the test.

[0035] Furthermore, the top end of the connecting sleeve 426 is fixedly connected to the bottom of the metal gear 421. This fixed connection method ensures the stability of the metal gear 421 during the test and avoids affecting the test results due to shaking or loosening.

[0036] Furthermore, the second adjustment assembly 42 also includes a limiting frame 425 disposed on the top of the support plate 414, and the connecting sleeve 426 is slidably disposed in the limiting frame 425. The design of the limiting frame 425 restricts the range of movement of the connecting sleeve 426, ensuring the stability and safety of the metal gear 421 during the adjustment process.

[0037] Example 2: Please refer to Figure 6 Furthermore, in conjunction with Embodiment 1, the top of the base 1 is provided with a splash-proof mechanism 5 to block flying debris generated during the test. The splash-proof mechanism 5 includes a fixed frame 51 and a connecting seat 52 located at the top of the base 1. An adjusting frame 53 is slidably disposed within the fixed frame 51. The design of the splash-proof mechanism 5 effectively blocks flying debris generated during the test, protecting the safety of operators and the test environment.

[0038] Furthermore, the bottom end of the adjustment frame 53 is slidably disposed in the connecting seat 52, and a handle 54 is fixedly attached to the top of the adjustment frame 53. By pulling the handle 54, the position of the adjustment frame 53 can be easily adjusted to adapt to different testing requirements, while ensuring the stability and ease of use of the splash-proof mechanism 5.

[0039] In actual operation, firstly, the plastic gear 33 to be tested is placed on top of the movable seat 32. Next, based on the external tooth shape of the plastic gear 33, a matching metal gear 421 is selected. The operation is as follows: the first motor 412 is started, driving the worm gear 413 to rotate within the mounting bracket 411, which in turn drives the worm wheel 415 to rotate. With the assistance of the second telescopic rod 416, the metal gear 421 is adjusted so that its corresponding external teeth face the plastic gear 33.

[0040] Subsequently, the height of the metal gear 421 is adjusted according to the height of the plastic gear 33. The specific steps are as follows: the second motor 423 is started, causing the threaded rod 424 to rotate. Under the restriction of the limit bracket 425, the connecting sleeve 426 slides, and with the auxiliary support of the second telescopic rod 416, the metal gear 421 moves up and down to a position parallel to the plastic gear 33, and then the second motor 423 is turned off.

[0041] Next, the first electric telescopic rod 31 is activated, pushing the movable seat 32 to move, causing the plastic gear 33 to contact the metal gear 421. After that, the torque wrench 34 is rotated to perform a test.

[0042] To prevent broken teeth from flying from the defective plastic gear 33 during testing, the handle 54 can be pulled to allow the adjusting frame 53 to slide within the fixed frame 51. The connecting seat 52 ensures stable sliding of the adjusting frame 53, and the fixed frame 51 and the adjusting frame 53 together effectively shield against flying debris generated during testing.

[0043] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A static testing bench for plastic gears, comprising a base (1) and an operating platform (2) on top thereof, wherein a pushing testing mechanism (3) for performing static testing is provided on the outside of the operating platform (2), wherein a first electric telescopic rod (31) is provided in the pushing testing mechanism (3), the first electric telescopic rod (31) is provided at the top of the operating platform (2), and a movable seat (32) is provided at the output end of the first electric telescopic rod (31), wherein the top of the movable seat (32) can hold a plastic gear (33) to be tested, and a torque wrench (34) for testing static torque is provided at the top of the plastic gear (33), characterized in that: The operating table (2) is equipped with a test adjustment mechanism (4) for testing plastic gears (33) of different sizes and specifications; The test adjustment mechanism (4) includes a first adjustment component (41) and a second adjustment component (42); The first adjustment component (41) includes a support plate (414) disposed on the top of the operating table (2), a worm gear (415) is rotatably disposed on the support plate (414), and a second telescopic rod (416) is disposed at the top of the worm gear (415). The second adjustment component (42) includes a metal gear (421) that can contact the plastic gear (33).

2. The static testing platform for plastic gears according to claim 1, characterized in that: The first adjustment component (41) also includes a mounting bracket (411) disposed at the top of the operating table (2). A first motor (412) is disposed outside the mounting bracket (411). A worm gear (413) is drivenly connected to the output shaft of the first motor (412). The worm gear (413) meshes with a worm wheel disc (415).

3. The static testing bench for plastic gears according to claim 1, characterized in that: The output end of the second telescopic rod (416) is rotatably connected to the bottom end of the metal gear (421).

4. The static testing platform for plastic gears according to claim 1, characterized in that: The second adjustment component (42) also includes a mounting base (422) disposed in the operating table (2), wherein a second motor (423) is disposed in the mounting base (422), and a threaded rod (424) is drivenly connected to the output shaft of the second motor (423), and a connecting sleeve (426) is connected to the external thread of the threaded rod (424).

5. The static testing bench for plastic gears according to claim 4, characterized in that: The top end of the connecting sleeve (426) is fixedly connected to the bottom of the metal gear (421).

6. The static testing bench for plastic gears according to claim 5, characterized in that: The second adjustment component (42) also includes a limiting frame (425) disposed on the top of the support plate (414), and the connecting sleeve (426) is slidably disposed in the limiting frame (425).

7. The static testing bench for plastic gears according to claim 1, characterized in that: The top of the base (1) is provided with a splash-proof mechanism (5) to block the flying debris generated during the test. The splash-proof mechanism (5) includes a fixed frame (51) set at the top of the base (1) and a connecting seat (52) set at the top of the base (1). An adjustment frame (53) is slidably arranged in the fixed frame (51).

8. The static testing bench for plastic gears according to claim 7, characterized in that: The adjustment frame (53) is slidably disposed in the connecting seat (52) at its bottom end, and a handle (54) is fixedly provided on the top of the adjustment frame (53).

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