A self-checking platform for reducer with working feedback function

Abstract

The invention discloses a reducer self-checking platform with a working feedback function, which belongs to the technical field of reducer testing, and comprises a planetary disk with a plurality of driven gears, wherein a transmission gear meshing with the plurality of driven gears and fixedly connected to an output shaft on the reducer is arranged at the axis center position of the planetary disk; the invention uses a flywheel disk transmission structure as an inertial load, and arranges detection structures in two orthogonal directions of the planetary disk, and simulates actual operating conditions by changing parameters such as the angular acceleration and the rotation speed of a motor, and feeds back a self-checking mode of the operating state of the output shaft of the reducer by detecting the transmission states of the plurality of driven gears. Compared with only arranging a sensing detection structure at the output shaft that moves with the output shaft, a plurality of detection structures are statically installed and circumferentially distributed, and the transmission characteristics of the reducer in different directions during operation are fully captured, and the accuracy of the self-checking feedback is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of speed reducer testing, and more specifically to a speed reducer self-testing platform with a working feedback function. Background Art

[0002] A reducer is an independent component consisting of a gear transmission, a worm transmission, or a gear-worm transmission enclosed in a rigid housing. It is often used as a reduction transmission device between the prime mover and the working machine. The reducer self-test platform is an automated system used to detect and evaluate the performance of the reducer. This type of platform usually integrates advanced sensor technology, data acquisition and analysis software, and a variety of test equipment for simulating the actual working conditions of the reducer. The core purpose of these functions is to ensure that the reducer needs to be tested before leaving the factory to ensure that its performance parameters meet the design requirements and actual application needs.

[0003] After searching, the patent number CN110715802A discloses "Reducer Test Device and Reducer Test System". This application document drives the input shaft of the reducer to be tested to rotate through the motor, and the output shaft of the reducer to be tested rotates through the transmission of the reducer to be tested, driving the rotational inertia member to rotate. The vibration sensor is installed on the rotational inertia member and is located at the connection between the rotational inertia member and the reducer, which is used to detect the vibration data of the reducer. This application document only sets the vibration sensor at the connection between the rotational inertia member and the reducer. During the detection process, the vibration sensor rotates synchronously with the output shaft of the detection reducer, which is prone to signal transmission or stability problems due to rotation. In addition, there is only one vibration sensor, and it is installed at the same position of the output shaft. It is difficult to fully capture the vibration characteristics of the reducer under different working conditions, which has certain disadvantages.

[0004] To this end, we propose a reducer self-inspection platform with work feedback function to address the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the existing practical problems. Compared with the existing technology, a reducer self-inspection platform with a working feedback function is provided. A planetary disk with multiple driven gears is provided. A transmission gear that meshes with the multiple driven gears and is fixedly connected to the output shaft on the reducer is provided at the axial position of the planetary disk. A flywheel disk transmission structure is used as an inertial load. Detection structures are provided in two orthogonal directions of the planetary disk. The actual operating conditions are simulated by changing the angular acceleration, rotational speed and other parameters of the motor. The self-inspection mode of the operating state of the output shaft of the reducer is fed back by detecting the transmission state of multiple driven gears. Compared with only one sensor detection structure that moves with the output shaft being provided at the output shaft, multiple groups of detection structures are statically installed and distributed circumferentially, which comprehensively captures the transmission characteristics of the reducer in different directions during operation, and effectively improves the accuracy of self-inspection feedback.

[0006] The object of the present invention can be achieved through the following technical solutions: a self-inspection platform for a reducer with a working feedback function, comprising a detection platform and a prime motor and a feedback controller installed on the upper end thereof and connected to the transmission of the reducer, a moving frame that can move horizontally is installed on the side of the detection platform away from the prime motor, a transmission hole corresponding to the position of the output shaft of the reducer is opened on the moving frame, a planetary disk is fixedly installed on the outer end wall of the moving frame, a transmission gear is rotatably installed on the axial direction of the planetary disk through a transmission sleeve, driven gears that are evenly distributed on the outside of the transmission gear and meshed with it are rotatably installed on the end walls around the planetary disk, detection structures for detecting the driven gears are embedded and installed in two orthogonal directions of the planetary disk, and an annular inspection groove that is compatible with the detection structure is opened on the end wall of the driven gear;

[0007] The detection structure includes a vibration detection component and a beat detection component which are vertically arranged, wherein the vibration detection component includes a detection sleeve 1 embedded and installed on the planetary disk, on which a vibration sensor is fixedly installed, and the detection end of the vibration sensor is connected to a vibration transmission section extending into the annular inspection groove; the beat detection component includes a detection sleeve 2 embedded and installed on the planetary disk, on which a beat sensor is fixedly installed, and the detection end of the beat sensor is connected to a beat transmission section extending into the annular inspection groove.

[0008] Furthermore, an upper electric guide rail and a lower electric guide rail are respectively installed in the upper and lower directions of one side of the upper end of the detection platform, and the upper and lower ends of the movable frame are respectively connected with the upper electric guide rail and the lower electric guide rail. The upper end of the detection platform close to the reducer is fixedly connected with an interlocking frame connected with the end of the upper electric guide rail.

[0009] Furthermore, a clamping strip is fixedly connected to the edge end wall of the movable frame facing the embedded frame, and clamping grooves corresponding to the clamping strip are provided on the end walls on both sides of the embedded frame.

[0010] Furthermore, the vibration detection component is installed on a line parallel to the axis of the driven gear, and the vibration detection component is installed on a line perpendicular to the axis of the driven gear.

[0011] Furthermore, the vibration transmission section includes a linear contact rod movably installed in a detection sleeve, the front end of the linear contact rod passes through the detection sleeve, the transmission gear and is connected to a contact head extending into the ring inspection groove, and the rear end of the linear contact rod is connected to the detection end of the vibration sensor through a vibration spring.

[0012] Furthermore, the beating transmission section includes an L-shaped detection rod slidably installed in the detection sleeve 2, the other end of the L-shaped detection rod passes through the detection sleeve 2 and the planetary disk in sequence and is fixedly connected to the contact head 2 extending into the ring detection groove, and the rear end of the L-shaped detection rod is connected to the detection end of the beating sensor through a reset spring.

[0013] Furthermore, the L-shaped detection rod is in an L-shaped structure, the planetary disk is provided with an L-shaped groove for embedding and installing the L-shaped detection rod, and a jump gap is reserved between the L-shaped detection rod and the inner wall of the L-shaped groove.

[0014] Furthermore, the feedback controller is provided with a feedback control system connected to the prime motor and the vibration sensor and the beating sensor signal, wherein the feedback control system includes an information acquisition module, an operation analysis module and a feedback control module, the information acquisition module is used to collect operation data within a monitoring cycle, the operation data includes the execution data of the prime motor and the vibration data and beating data of the reducer, the vibration data is the vibration frequency on the driven gear collected by the detection set 1, and the beating data is the beating frequency on the driven gear collected by the beating sensor;

[0015] The information acquisition module sends the operation data to the operation analysis module. The operation analysis module generates an operation risk coefficient based on the vibration data and the runout data, and determines whether the operation status of the reducer meets the requirements based on the operation risk coefficient;

[0016] The feedback control module analyzes and feeds back the determination result of the speed reducer operation state, and generates a control signal for controlling the prime mover.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] (1) This scheme is to set a planetary disk with multiple driven gears, and set a transmission gear that meshes with the multiple driven gears and is fixedly connected to the output shaft of the reducer at the axis position of the planetary disk. The flywheel disk transmission structure is used as the inertial load, and detection structures are set in two orthogonal directions of the planetary disk. The self-test mode of the operating state of the output shaft of the reducer is fed back by detecting the transmission state of the multiple driven gears. During the detection process, the angular acceleration, speed and other parameters of the motor are changed in real time to simulate the actual operating conditions. Compared with only setting a sensor detection structure at the output shaft that moves with it, by statically installing and distributing multiple sets of detection structures on a circumference, it is possible to comprehensively capture the transmission characteristics of the output shaft of the reducer in different directions during operation, expand the detection range, and effectively improve the accuracy of self-test feedback.

[0019] (2) The detection structure in this scheme includes a vertically arranged vibration detection component and a vibration detection component. Multiple groups of vibration detection components and vibration detection components are evenly distributed along the axial direction of the output shaft. That is, multiple evenly distributed collection points are set up on the inertial load structure around the output shaft of the reducer to obtain vibration data and vibration data of each collection point. The vibration data and vibration data of each collection point are comprehensively analyzed to determine whether the operating status of the reducer meets the requirements, so as to improve the accuracy and comprehensiveness of the output shaft operating status analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention before the detection structure and the output shaft of the reducer are installed;

[0021] Figure 2 It is a structural schematic diagram of another viewing angle of the present invention before the detection structure is installed with the output shaft of the reducer;

[0022] Figure 3 It is a schematic diagram of the structure of the present invention when it is working;

[0023] Figure 4 It is a structural schematic diagram of the mobile frame, the planetary disk and the detection structure of the present invention when they are combined;

[0024] Figure 5 It is a structural schematic diagram of the present invention when the moving frame, the planetary disk and the detection structure are detached;

[0025] Figure 6 It is a structural schematic diagram from another perspective when the mobile frame, the planetary disk and the detection structure of the present invention are detached;

[0026] Figure 7 It is a structural schematic diagram of the joint between the flying disc and the detection structure of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the combination of one set of detection structures, the flying disc and the driven gear of the present invention;

[0028] Fig. 9 A partial cross-sectional view of the combination of one set of detection structures, the flying disc and the driven gear of the present invention Figure 1 ;

[0029] Fig.10 A partial cross-sectional view of the combination of one set of detection structures, the flying disc and the driven gear of the present invention Figure 2 ;

[0030] Fig.11 It is a cross-sectional view of the vibration detection component of the present invention.

[0031] Description of the numbers in the figure:

[0032] 1. Inspection table; 2. Speed ​​reducer; 201. Output shaft; 3. Prime motor; 4. Upper electric guide rail; 5. Lower electric guide rail; 6. Fitting frame; 7. Moving frame; 701. Transmission hole; 8. Planetary disk; 801. Transmission sleeve; 9. Transmission gear; 10. Driven gear; 101. Ring inspection groove; 11. Vibration sensor; 12. Inspection sleeve one; 13. Linear contact rod; 131. Contact head one; 14. Vibration spring; 15. Jump sensor; 16. Inspection sleeve two; 17. L-shaped inspection rod; 171. Contact head two; 18. Reset spring. DETAILED DESCRIPTION

[0033] The following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0034] Example 1: The present invention discloses a reducer self-checking platform with a working feedback function, please refer to Figure 1 , Figure 2 , including a test platform 1 and a prime motor 3 installed at the upper end thereof and connected to the reducer 2 for transmission, and a feedback controller, the drive shaft of the prime motor 3 is connected to the input shaft of the reducer 2, and a movable frame 7 that can move horizontally is installed on the side of the test platform 1 away from the prime motor 3, and a transmission hole 701 corresponding to the position of the output shaft 201 is opened on the movable frame 7;

[0035] An upper electric guide rail 4 and a lower electric guide rail 5 are respectively installed in the upper and lower directions of one side of the upper end of the testing platform 1, and the upper and lower ends of the moving frame 7 are connected with the upper electric guide rail 4 and the lower electric guide rail 5 respectively. The upper end of the testing platform 1 close to the reducer 2 is fixedly connected with an interlocking frame 6 connected with the end of the upper electric guide rail 4, and the edge end wall of the moving frame 7 facing the interlocking frame 6 is fixedly connected with a clamping strip, and the end walls on both sides of the interlocking frame 6 are provided with clamping grooves corresponding to the clamping strip. The moving frame 7 is horizontally driven by the upper and lower electric guide rails 4 and the lower electric guide rails 5 distributed up and down, and the reducer 2 to be tested is fixedly installed on the testing platform 1, and the output shaft 201 of the reducer 2 is arranged toward the transmission hole 701.

[0036] See also Figure 1-Figure 4, a planetary disc 8 is fixedly installed on the end wall of the movable frame 7 away from the reducer 2, and a transmission gear 9 is rotatably installed on the axial direction of the planetary disc 8 through a transmission sleeve 801. Driven gears 10 uniformly distributed on the outside of the transmission gear 9 and meshingly connected therewith are rotatably installed on the end walls around the planetary disc 8. The other ends of the transmission gear 9 and the driven gear 10 are rotatably connected with the end wall of the movable frame 7. After the reducer 2 is installed, the movable frame 7 is driven toward the output shaft 201 side by the upper electric guide rail 4 and the lower electric guide rail 5 until the output shaft 201 passes through the transmission hole 701 and the transmission gear 9, and the output shaft 201 is fixedly installed with the transmission sleeve 801 to realize the coaxial fixed connection between the output shaft 201 and the transmission gear 9, and the prime motor 3 is started, and the prime motor 3 drives the output shaft 201 to rotate and drive, and the output shaft 201 synchronously drives the transmission gear 9 and multiple driven gears 10 to rotate synchronously. During the detection process, the angular acceleration, speed and other parameters of the motor are changed in real time to simulate the actual operating conditions.

[0037] See also Figure 4-Figure 7 , the planetary disc 8 is embedded with detection structures for detecting the driven gear 10 in two directions orthogonal to each other, and the end wall of the driven gear 10 is provided with an annular detection groove 101 adapted to the detection structure, and the detection structure includes a vertically arranged vibration detection component and a runout detection component, the vibration detection component is installed on a line parallel to the axis of the driven gear 10, and the runout detection component is installed on a line perpendicular to the axis of the driven gear 10;

[0038] Among them, see Figure 7 , Figure 8 The vibration detection component includes a detection sleeve 12 embedded in the planetary disk 8, a vibration sensor 11 is fixedly installed on the detection sleeve 12, and the detection end of the vibration sensor 11 is connected to a vibration transmission section extending into the ring inspection groove 101. The beating detection component includes a detection sleeve 2 16 embedded in the planetary disk 8, a beating sensor 15 is fixedly installed on the detection sleeve 2 16, and the detection end of the beating sensor 15 is connected to a beating transmission section extending into the ring inspection groove 101;

[0039] For more details, see Figure 9-11 The vibration transmission section includes a linear contact rod 13 movably installed in a detection sleeve 12. The front end of the linear contact rod 13 penetrates the detection sleeve 12 and the transmission gear 9 and is connected to a contact head 131 extending into the annular detection groove 101. The rear end of the linear contact rod 13 is connected to the detection end of the vibration sensor 11 through a vibration spring 14. Multiple detection sleeves 12 distributed around the circumference are used to measure the vibration frequencies of different driven gears 10 in different directions of up, down, left, and right.

[0040] The beating transmission section includes an L-shaped detection rod 17 slidably installed in the detection sleeve 16. The other end of the L-shaped detection rod 17 passes through the detection sleeve 16 and the planetary disk 8 in sequence and is fixedly connected with a contact head 171 extending into the annular detection groove 101. The rear end of the L-shaped detection rod 17 is connected to the detection end of the beating sensor 15 through a reset spring 18. The L-shaped detection rod 17 has an L-shaped structure. The planetary disk 8 is provided with an L-shaped groove for embedding and installing the L-shaped detection rod 17, and a beating gap is reserved between the L-shaped detection rod 17 and the inner wall of the L-shaped groove. The upper and lower beating sensors 15 are used to measure the beating of the driven gear 10 in the vertical direction, and the horizontal two beating sensors 15 are used to measure the beating of the driven gear 10 in the horizontal direction. The beating of different driven gears 10 in different directions can be effectively detected.

[0041] With the flywheel transmission structure as the inertial load, detection structures are set in two orthogonal directions of the planetary disk 8. The self-test mode of the output shaft 201 is fed back by detecting the transmission status of multiple driven gears 10. Compared with only setting one sensor detection structure that moves with the output shaft 201, by statically installing and distributing multiple groups of detection structures in a circle, the transmission characteristics of the reducer output shaft 201 in different directions during operation can be fully captured, the detection range can be expanded, and the accuracy of self-test feedback can be effectively improved.

[0042] Embodiment 2: A feedback control system connected to the prime motor 3, the vibration sensor 11 and the beating sensor 15 is provided in the feedback controller, wherein the feedback control system comprises an information acquisition module, an operation analysis module and a feedback control module, the information acquisition module is used to collect operation data within a monitoring cycle, the operation data comprises the execution data of the prime motor 3 and the vibration data and beating data of the reducer 2, the vibration data is the vibration frequency on the driven gear 10 collected by the detection set 12, and the beating data is the beating frequency on the driven gear 10 collected by the beating sensor 15;

[0043] The information acquisition module sends the operation data to the operation analysis module, which generates an operation risk coefficient based on the vibration data and the runout data, and determines whether the operation status of the reducer 2 meets the requirements based on the operation risk coefficient;

[0044] The process of generating the operation risk coefficient includes: the operation analysis module sums and averages the vibration data at each collection point of the driven gear 10 obtained in the same monitoring period, marks it as a vibration frequency value, compares the vibration frequency value with a preset vibration frequency threshold, and when the vibration frequency is less than the preset vibration frequency threshold, determines that the monitoring period is a normal operation period, and when all monitoring periods are normal operation periods, generates a vibration stability signal;

[0045] When the vibration frequency is greater than or equal to the preset vibration frequency threshold, the monitoring period is judged as a risk operation period, and a vibration abnormality signal is generated. The vibration frequency values ​​in all risk operation periods are summed and the quotient is calculated with the total risk operation time to obtain the risk vibration floating value, which is marked as FZ.

[0046] Multiple runout change curves are established on the same rectangular coordinate system with the runout data at each collection point of the driven gear 10 during the monitoring period, and the preset runout data threshold is used to make a maximum safe runout straight line parallel to the x-axis in the horizontal direction, and the collection points corresponding to the runout change curves whose runout data are lower than the preset runout data threshold are obtained, and marked as normal collection points. When all collection points are normal collection points, a runout stability signal is generated;

[0047] Acquire the collection point corresponding to the jitter change curve where there is jitter data higher than the preset jitter data threshold, mark it as an abnormal collection point, generate a jitter abnormal signal, select all jitter data higher than the preset jitter data threshold on the abnormal collection point, sum and average all jitter data higher than the preset jitter data threshold to obtain the abnormal jitter value, calculate the difference between the abnormal jitter value and the preset jitter data threshold, obtain the risk jitter floating value, and mark it as FT;

[0048] The risk vibration floating value and the maximum risk jump floating value are calculated by formula to obtain the operation risk coefficient FX. , where g 1 , g 2 Respectively represent the proportional coefficients of risk vibration floating value and risk jump floating value, g 1 > 2 >1, the greater the operating risk coefficient, the less the vibration and vibration of the output shaft 201 of the reducer 2 meet the standard, and the greater the operating risk;

[0049] The operation risk coefficient is compared with the preset operation risk coefficient. When the operation risk coefficient is greater than or equal to the preset operation risk coefficient threshold, a first-level risk signal is generated. When the operation risk coefficient is less than the preset operation risk coefficient threshold, a second-level risk signal is generated.

[0050] When the feedback control module receives the vibration stability signal and the beat stability signal, it generates an operation maintenance signal. When it receives the first-level risk signal, it generates a first-level control signal. When it receives the second-level risk signal, it generates a second-level control signal. The operation maintenance signal, the first-level control signal, and the second-level control signal all control the operation of the prime motor 3.

[0051] In summary, a planetary disc 8 with a plurality of driven gears 10 is provided, a transmission gear 9 meshing with the plurality of driven gears 10 and fixedly connected to the output shaft 201 on the reducer 2 is provided at the axis position of the planetary disc 8, a flywheel disc transmission structure is used as an inertial load, detection structures are provided in two orthogonal directions of the planetary disc 8, the detection structure includes a vertically arranged vibration detection component and a beating detection component, a self-test mode of the operating state of the output shaft 201 is fed back by detecting the transmission state of the plurality of driven gears 10, and parameters such as the angular acceleration and rotation speed of the motor are changed in real time during the detection process to simulate the actual operating conditions;

[0052] Compared with only setting a sensing detection structure that moves with the output shaft 201, by statically installing and circumferentially distributing multiple sets of detection structures, the transmission characteristics of the reducer output shaft 201 in different directions during operation can be fully captured, and the detection range can be expanded. That is, multiple evenly distributed collection points are set up on the inertial load structure around the output shaft 201 to obtain vibration data and run-out data of each collection point. The vibration data and run-out data of each collection point are comprehensively analyzed to determine whether the operating status of the reducer 2 meets the requirements, so as to improve the accuracy and comprehensiveness of the output shaft 201 operating status analysis.

[0053] The above are only preferred specific implementation modes of the present invention; however, the protection scope of the present invention is not limited thereto; any technician familiar with the technical field within the technical scope disclosed by the present invention; any equivalent replacement or change based on the technical solution and improved concept of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A speed reducer self-test platform with a working feedback function, comprising a test platform (1), a prime mover motor (3) mounted on the upper end thereof and connected to the speed reducer (2) in a transmission manner, and a feedback controller, characterized in that: A movable frame (7) that can move horizontally is installed on a side of the detection platform (1) away from the prime mover (3); a planetary disc (8) is fixedly installed on the outer end wall of the movable frame (7); a transmission gear (9) that is mounted in a rotatable manner on the planetary disc (8) and is connected to the output shaft (201) of the reducer (2); driven gears (10) that are rotatably mounted on the peripheral end walls of the planetary disc (8) and are meshed with the outer end of the transmission gear (9); detection structures are embedded and installed in two orthogonal directions of the planetary disc (8); and an annular detection groove (101) that is compatible with the detection structure is provided on the end wall of the driven gear (10); The detection structure comprises a vibration detection component and a vibration detection component which are arranged vertically, wherein the vibration detection component comprises a detection sleeve (12) embedded in the planetary disk (8), a vibration sensor (11) being fixedly mounted on the detection sleeve (12), a detection end of the vibration sensor (11) being connected to a vibration transmission section extending into the annular detection groove (101), and the vibration detection component comprises a detection sleeve (16) embedded in the planetary disk (8), a vibration sensor (15) being fixedly mounted on the detection sleeve (16), and a detection end of the vibration sensor (15) being connected to a vibration transmission section extending into the annular detection groove (101).

2. According to claim 1, a reducer self-test platform with a working feedback function is characterized in that: An upper electric guide rail (4) and a lower electric guide rail (5) are respectively installed in the upper and lower directions of one side of the upper end of the detection platform (1); the upper and lower ends of the movable frame (7) are respectively connected to the upper electric guide rail (4) and the lower electric guide rail (5); and a chimeric frame (6) connected to the end of the upper electric guide rail (4) is fixedly connected to the upper end of the detection platform (1) close to the reducer (2).

3. A reducer self-checking platform with working feedback function according to claim 2, characterized in that: A clamping strip is fixedly connected to the edge end wall of the movable frame (7) facing the embedded frame (6), and a clamping slot corresponding to the clamping strip is provided on the end walls on both sides of the embedded frame (6).

4. The reducer self-test platform with working feedback function according to claim 1 is characterized in that: The vibration detection component is installed on a line parallel to the axis of the driven gear (10), and the runout detection component is installed on a line perpendicular to the axis of the driven gear (10).

5. The reducer self-checking platform with working feedback function according to claim 4 is characterized in that: The vibration transmission section comprises a linear contact rod (13) movably mounted in a detection sleeve (12); a front end of the linear contact rod (13) passes through the detection sleeve (12) and the transmission gear (9) and is connected to a contact head (131) extending into the annular detection groove (101); and a rear end of the linear contact rod (13) is connected to a detection end of a vibration sensor (11) via a vibration spring (14).

6. The reducer self-checking platform with working feedback function according to claim 4 is characterized in that: The beating transmission section comprises an L-shaped detection rod (17) slidably mounted in the second detection sleeve (16); the other end of the L-shaped detection rod (17) sequentially passes through the second detection sleeve (16) and the planetary disk (8) and is fixedly connected to a second contact head (171) extending into the annular detection groove (101); and the rear end of the L-shaped detection rod (17) is connected to the detection end of the beating sensor (15) via a return spring (18).

7. The reducer self-checking platform with working feedback function according to claim 6 is characterized in that: The L-shaped detection rod (17) is in an L-shaped structure, and the planetary disc (8) is provided with an L-shaped groove for embedding and installing the L-shaped detection rod (17).

8. The reducer self-checking platform with working feedback function according to claim 1 is characterized in that: The feedback controller is provided with a feedback control system connected to the prime motor (3), the vibration sensor (11), and the vibration sensor (15) by signals, wherein the feedback control system comprises an information collection module, an operation analysis module, and a feedback control module, wherein the information collection module is used to collect operation data within a monitoring cycle, and the operation data comprises execution data of the prime motor (3) and vibration data and vibration data of the reducer (2); The information collection module sends the operation data to the operation analysis module, and the operation analysis module generates an operation risk coefficient according to the vibration data and the runout data, and determines whether the operation state of the reducer (2) meets the requirements according to the operation risk coefficient; The feedback control module analyzes and feeds back the determination result of the operating state of the reducer (2), and generates a control signal for controlling the execution data of the prime mover (3).

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