A device for detecting gear backlash in a gear reducer
By combining a placement rod, a detection head, an infrared scanner, a visual inspection camera, and a spacing positioning head in a gear reducer, the problem of insufficient accuracy and comprehensiveness of gear reducer gear clearance detection devices is solved, achieving efficient and accurate detection results and ensuring the reliability of subsequent assembly and use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI DONGJIAN REDUCER CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-30
AI Technical Summary
Existing gear reducer gear backlash detection devices suffer from reduced accuracy and insufficient comprehensiveness during the detection process. Furthermore, the lack of multiple detection methods leads to increased errors in the detection results, affecting subsequent assembly and use.
The system employs a combination of a placement rod, a detection head, an infrared scanner, a visual inspection camera, an electronic column, and a spacing positioning head to achieve a dual detection method of dynamic and static inspection. Data is simultaneously displayed on the screen to ensure comprehensive coverage of all parts of the gear.
This improved the reliability and accuracy of testing, reduced errors, and ensured the assembly and performance of the gear reducer.
Smart Images
Figure CN224435319U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gear reducers, and specifically to a device for detecting gear backlash in a gear reducer. Background Technology
[0002] Gear reducers are external meshing involute helical cylindrical gear reducers manufactured according to national professional standards. They utilize gear transmission in stages to achieve speed reduction and are a type of power transmission mechanism that can reduce the rotational speed of a motor to the desired speed while obtaining a larger torque. Gear backlash detection devices are important tools for measuring gear backlash in gear reducers. These devices can be widely used in manufacturing, automotive industries, and the maintenance of various machinery and equipment, providing a reliable guarantee for reducing equipment failure rates and improving production efficiency.
[0003] A search revealed a clearance detection device for gear transmission backlash elimination, with announcement number CN218207752U. This device includes a first transmission gear located on one side inside the gear transmission frame, a second transmission gear located on the other side inside the gear transmission frame, and the first and second transmission gears meshing with each other. A gear transmission backlash elimination mechanism is located directly in front of the second transmission gear and is connected to the gear transmission frame by screws. The device has a meshing force sensing module inside the second meshing transmission gear. When the first and second transmission gears mesh, the meshing force sensing module experiences a certain meshing force, which is converted into an electrical signal output. When the clearance between the first and second transmission gears is large, the meshing force experienced by the meshing force sensing module decreases accordingly, and vice versa.
[0004] Existing gear reducer clearance detection devices often encounter problems during use. Excessive clearance discrepancies during gear assembly can lead to assembly difficulties and decreased accuracy. Furthermore, these devices rely on only one method for clearance detection, resulting in reduced accuracy, precision, and comprehensiveness. The gear reducer clearance detection devices in the aforementioned comparative case also lack multiple detection methods. Long-term use of such devices can lead to increased errors in the gear reducer clearance detection results, impacting subsequent assembly and use.
[0005] Therefore, it is necessary to invent a device for detecting the gear clearance of a gear reducer to solve the above problems. Utility Model Content
[0006] The purpose of this invention is to provide a device for detecting gear clearance in a gear reducer. By incorporating a placement rod, a detection head, an infrared scanner, a visual inspection camera, an electronic column, and a spacing positioning head, this device offers a dual detection method. The combination of dynamic and static detection comprehensively reflects the actual working state of the gears, fully covering all parts of the gears to ensure no omissions. Furthermore, the data is synchronously summarized on a display screen, making the detection results more intuitive and comprehensive. This data synchronization method also improves the reliability of the detection. This not only ensures the accuracy of the gear clearance detection results and reduces errors, but also guarantees... To improve the effectiveness of subsequent gear assembly and use of gear reducers, this paper addresses the problems in existing gear reducer clearance detection devices. These devices often suffer from difficulties in assembly and reduced accuracy due to excessive clearance discrepancies during gear assembly. Furthermore, the current clearance detection devices rely on only one method, leading to decreased accuracy and comprehensiveness. The aforementioned comparative case also lacks multiple detection methods, resulting in increased errors in clearance detection over time, impacting subsequent assembly and use.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a gear reducer gear clearance detection device, including a clearance detection platform, which is a main body for supporting clearance detection components;
[0008] A display screen is set above the gap detection table for displaying detection data. A servo motor is fixedly installed inside the gap detection table. A placement rod is fixedly installed at the output end of the servo motor. A reducer gear body is sleeved on the outside of the placement rod. A drive controller is fixedly installed on the outside of the gap detection table. A detection frame is fixedly installed above the gap detection table.
[0009] An electric slide rail is installed inside the inspection frame for sliding connection of an electric sliding sleeve. A scanning plate is fixedly installed on the outside of the electric sliding sleeve. A first telescopic cylinder is fixedly installed inside the scanning plate. An inspection head is fixedly installed at the bottom of the first telescopic cylinder. An infrared scanner is fixedly installed in front of the inspection head, and a visual inspection camera is fixedly installed behind the inspection head.
[0010] An electronic column is installed outside the gap detection stage to receive detection data. A tooth pitch stage is fixedly installed on the right side of the electronic column. A second telescopic cylinder is fixedly installed inside the tooth pitch stage. A push block is fixedly connected to the front of the second telescopic cylinder. A gap positioning head is fixedly installed outside the push block.
[0011] Preferably, the reducer gear body is movably connected to the placement rod, and the placement rod is rotatably connected to the gap detection table.
[0012] Preferably, a positioning groove is provided on the outside of the gear body of the reducer, a positioning plate is fixedly installed on the outside of the placement rod, and a positioning column is fixedly installed on the top of the positioning plate.
[0013] Preferably, the positioning post fixedly installed above the positioning plate engages with the positioning groove opened on the outside of the reducer gear body, and the positioning post and the positioning groove are used in conjunction.
[0014] Preferably, an upper mounting post is fixedly installed on the top of the placement rod, and a fixing screw passes through the upper part of the upper mounting post. An upper clamping plate is connected to the external thread of the fixing screw.
[0015] Preferably, the spacing positioning head slides with the tooth pitch stage, and the tooth pitch stage is fixedly connected to the gap detection stage.
[0016] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0017] This utility model includes a placement rod, a detection head, an infrared scanner, a visual inspection camera, an electronic column, and a spacing positioning head. After the reducer gear body is fitted onto the placement rod, the detection head, via an electric slide rail and an electric sliding sleeve, drives the infrared scanner and visual inspection camera to scan the reducer gear body from front to back. The infrared scanner and visual inspection camera can be connected to the drive controller via connecting cables, and the scanned data is directly displayed on the screen. Then, the placement rod drives the reducer gear body to rotate at a constant speed. Simultaneously, during the rotation intervals, the second telescopic cylinder pushes the spacing positioning head to insert into the gear gap of the reducer gear body. The device performs clearance and runout detection, and the data is transmitted to the display screen via an electronic column connected by wires. This gives the gear reducer gear clearance detection device a dual detection method, combining dynamic and static detection to more comprehensively reflect the actual working state of the gears. It can fully cover all parts of the gears, ensuring no omissions in the detection. Moreover, the data is synchronously summarized on the display screen, making the detection results more intuitive and comprehensive. This data synchronization method also improves the reliability of the detection. This not only ensures the detection results of the gear reducer gear clearance and reduces errors, but also ensures the subsequent assembly and use of the gear reducer gears. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the gear body structure of the reducer of this utility model;
[0021] Figure 3 This is a schematic diagram of the detection frame structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the detection head structure of this utility model;
[0023] Figure 5 This is a schematic diagram of the electronic column structure of this utility model;
[0024] Figure 6 This is the system control flowchart of this utility model.
[0025] Explanation of reference numerals in the attached figures:
[0026] 1. Gap detection stage; 2. Display screen; 3. Servo motor; 4. Placement rod; 5. Reducer gear body; 6. Positioning groove; 7. Positioning plate; 8. Positioning column; 9. Upper mounting column; 10. Fixing screw; 11. Upper clamping plate; 12. Drive controller; 13. Detection frame; 14. Electric slide rail; 15. Electric sliding sleeve; 16. Scanning plate; 17. First telescopic cylinder; 18. Detection head; 19. Infrared scanner; 20. Visual inspection camera; 21. Electronic column; 22. Gear pitch stage; 23. Second telescopic cylinder; 24. Push block; 25. Gap positioning head. Detailed Implementation
[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0028] This utility model provides, for example Figure 1-6 The device shown is a gear reducer gear backlash detection device, including a backlash detection table 1, which is a main body for supporting the backlash detection components;
[0029] The display screen 2 is set above the gap detection table 1 for displaying detection data. A servo motor 3 is fixedly installed inside the gap detection table 1. A placement rod 4 is fixedly installed at the output end of the servo motor 3. A reducer gear body 5 is sleeved on the outside of the placement rod 4. A drive controller 12 is fixedly installed on the outside of the gap detection table 1. A detection frame 13 is fixedly installed above the gap detection table 1.
[0030] An electric slide rail 14 is installed inside the inspection frame 13 for sliding connection of an electric sliding sleeve 15. A scanning plate 16 is fixedly installed on the outside of the electric sliding sleeve 15. A first telescopic cylinder 17 is fixedly installed inside the scanning plate 16. An inspection head 18 is fixedly installed at the bottom of the first telescopic cylinder 17. An infrared scanner 19 is fixedly installed in front of the inspection head 18. A visual inspection camera 20 is fixedly installed behind the inspection head 18.
[0031] An electronic column 21 is located outside the gap detection stage 1 to receive detection data. A tooth pitch stage 22 is fixedly installed on the right side of the electronic column 21. A second telescopic cylinder 23 is fixedly installed inside the tooth pitch stage 22. A push block 24 is fixedly connected to the front of the second telescopic cylinder 23. A gap positioning head 25 is fixedly installed on the outside of the push block 24.
[0032] like Figure 1 , Figure 2 and Figure 3 As shown, the reducer gear body 5 is movably connected to the placement rod 4, and the placement rod 4 is rotatably connected to the gap detection table 1. The placement rod 4 can drive the reducer gear body 5 to rotate at a uniform speed, thereby avoiding manual operation and improving the overall detection efficiency. The reducer gear body 5 has a positioning groove 6 on its outside, and a positioning plate 7 is fixedly installed on the outside of the placement rod 4. A positioning column 8 is fixedly installed on the top of the positioning plate 7. The positioning column 8 and the positioning groove 6 allow the reducer gear body 5 to be stably installed on the placement rod 4, thus facilitating the rotation of the reducer gear body 5 by the placement rod 4. The positioning column 8 fixedly installed on the top of the positioning plate 7 engages with the positioning groove 6 on the outside of the reducer gear body 5. The positioning column 8 and the positioning groove 6 work together. The operation of the positioning column 8 and the positioning groove 6 is simple, thus facilitating the quick replacement of the reducer gear body 5 without delaying the normal detection time.
[0033] like Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, an upper mounting post 9 is fixedly installed on the top of the placement rod 4. A fixing screw 10 passes through the upper part of the upper mounting post 9. An upper clamping plate 11 is connected to the external thread of the fixing screw 10. The upper clamping plate 11 can clamp the reducer gear body 5 on the placement rod 4 from above, thereby improving the overall stability during testing. The spacing positioning head 25 slides with the tooth pitch platform 22. The tooth pitch platform 22 is fixedly connected with the gap detection platform 1. The placement rod 4 drives the reducer gear body 5 to rotate at a uniform speed. At the same time, during the rotation gap, the second telescopic cylinder 23 pushes the spacing positioning head 25 to insert into the gear gap of the reducer gear body 5 to perform gap and runout detection.
[0034] The working principle of this utility model is as follows: First, connect the external power supply. Take out the reducer gear body 5 that needs to be tested for gap. Place the reducer gear body 5 onto the placement rod 4 of the gap testing platform 1. Then, align the positioning groove 6 on the outside of the reducer gear body 5 with the positioning post 8 on the positioning plate 7. This allows the reducer gear body 5 to be securely installed on the placement rod 4 through the positioning post 8 and the positioning groove 6. Next, tighten the upper clamping plate 11 from above the reducer gear body 5 using the fixing screw 10 to securely install the reducer gear body 5 on the placement rod 4, thus ensuring a stable installation. The placement rod 4 drives the reducer gear body 5 to rotate. After this preparation is completed, the first telescopic cylinder 17 can be used to lower the detection head 18. Then, the switch of the electric slide rail 14 can be turned on, allowing the detection head 18 to drive the infrared scanner 19 and the visual inspection camera 20 to scan the reducer gear body 5 from front to back via the electric slide rail 14 and the electric sliding sleeve 15. Then, the infrared scanner 19 and the visual inspection camera 20 can be connected to the drive controller 12 via connecting cables, and the scanned data can be directly displayed on the display screen 2. Turn on the servo motor 3 to allow the placement rod 4 to drive the reducer gear body 5 to rotate at a constant speed. Then, during the rotation interval, turn on the second telescopic cylinder 23 to push the gap positioning head 25 into the gear gap of the reducer gear body 5 for gap and runout detection. The detection data is also transmitted to the display screen 2 via the electronic column 21 connected by wires. This gives the gear reducer gear gap detection device a dual detection method, combining dynamic and static detection to more comprehensively reflect the actual working state of the gear and fully cover all parts of the gear to ensure no omissions in the detection. At this time, the external operator can record the gear reducer gear gap data on the display screen 2 to complete the detection work. Finally, after completing the installation and use of the gear reducer gear gap detection device according to the above operations, turn off the servo motor 3, turn off the electric slide rail 14, and turn off the second telescopic cylinder 23. If not used for a long time, simply disconnect the external power supply. This completes the use of the gear reducer gear gap detection device.
[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A gear backlash detection device for a gear reducer, characterized by: include Gap detection stage (1), which is the main body for supporting the components for gap detection; The display screen (2) is set above the gap detection platform (1) for displaying detection data. A servo motor (3) is fixedly installed inside the gap detection platform (1). A placement rod (4) is fixedly installed at the output end of the servo motor (3). A reducer gear body (5) is sleeved on the outside of the placement rod (4). A drive controller (12) is fixedly installed on the outside of the gap detection platform (1). A detection frame (13) is fixedly installed above the gap detection platform (1). An electric slide rail (14) is installed inside the inspection frame (13) for sliding connection of an electric slide sleeve (15). A scanning plate (16) is fixedly installed on the outside of the electric slide sleeve (15). A first telescopic cylinder (17) is fixedly installed inside the scanning plate (16). An inspection head (18) is fixedly installed at the bottom of the first telescopic cylinder (17). An infrared scanner (19) is fixedly installed in front of the inspection head (18). A visual inspection camera (20) is fixedly installed behind the inspection head (18). An electronic column (21) is set outside the gap detection stage (1) to receive detection data. A tooth pitch stage (22) is fixedly installed on the right side of the electronic column (21). A second telescopic cylinder (23) is fixedly installed inside the tooth pitch stage (22). A push block (24) is fixedly connected to the front of the second telescopic cylinder (23). A gap positioning head (25) is fixedly installed outside the push block (24).
2. The gear backlash detection device for a gear reducer according to claim 1, characterized in that: The reducer gear body (5) is movably connected to the placement rod (4), and the placement rod (4) is rotatably connected to the gap detection table (1).
3. The gear backlash detection device for a gear reducer according to claim 1, characterized in that: The gear body (5) of the reducer has a positioning groove (6) on its outside, a positioning plate (7) is fixedly installed on the outside of the placement rod (4), and a positioning column (8) is fixedly installed on the top of the positioning plate (7).
4. The gear backlash detection device for a gear reducer according to claim 3, characterized in that: The positioning post (8) fixedly installed above the positioning plate (7) engages with the positioning groove (6) opened on the outside of the gear body (5) of the reducer, and the positioning post (8) and the positioning groove (6) are used together.
5. The gear backlash detection device for a gear reducer according to claim 1, characterized in that: The top of the placement rod (4) is fixedly installed with an upper mounting post (9), and a fixing screw (10) passes through the upper part of the upper mounting post (9). The upper clamping plate (11) is connected to the external thread of the fixing screw (10).
6. The gear backlash detection device for a gear reducer according to claim 1, characterized in that: The spacing positioning head (25) slides with the tooth pitch platform (22), and the tooth pitch platform (22) is fixedly connected with the gap detection platform (1).