Optimizing a gearbox and a method for detecting the performance thereof

Abstract

The application belongs to the technical field of gear box detection, and discloses an optimized gear box and a performance detection method thereof, which comprises the following steps: S1, providing an optimized gear box; S2, installing a rotating direction detection assembly on an output gear and installing a swing state detection assembly on a gear box cover plate; S3, controlling a motor to operate according to a predetermined forward rotation and reverse rotation sequence, so that a central shaft rotates in clockwise and counterclockwise directions respectively, and drives the gear box to work; and S4, collecting first detection data of the rotating direction detection assembly and second detection data of the swing state detection assembly, analyzing whether the rotational consistency of the output gear and the swing amplitude and frequency of the gear box cover plate meet the design requirements respectively, and evaluating the performance of the optimized gear box according to the analysis results, so that the rotating direction of the output gear and the swing state of the gear box are monitored in real time, the transmission characteristics of the core gear set and the working performance of the swing transmission assembly are verified, and the key performance of the gear box is comprehensively evaluated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gear detection, and in particular to an optimized gear box and a performance detection method thereof. BACKGROUND

[0002] Gear box as an important part of power transmission and motion control plays a vital role in various fields. Gear box transmits and converts the speed and torque of the motor to meet the operation requirements of the driven equipment. In complex mechanical systems, higher demands are put forward for the function of gear box, which not only requires stable power output, but also integrates more motion functions such as swinging and rotating to improve the flexibility and efficiency of the equipment. In addition, in the application occasion with limited space, compact and multifunctional gear box design is particularly important. Therefore, the design scheme of integrating multiple functions in a single gear box has become the trend of industry development.

[0003] In the existing gear transmission system, gear set is often used in combination with one-way bearing and idler to realize the switching of multiple working modes through forward and reverse rotation of the motor, so as to achieve the purpose of driving multiple functions by a single motor. For example, some schemes realize different power distribution outputs by using forward and reverse rotation of the motor through different transmission paths and variable direction idlers in the upper and lower layers. However, such design has the problems of complex transmission structure and large space occupation, which increases the manufacturing cost and maintenance difficulty. In addition, there is a lack of performance detection method for such complex gear box design in the prior art, which cannot comprehensively and accurately evaluate the transmission effect of the gear box and the reliability of the additional functions. These defects restrict the application and development of gear box in the field of multifunction and high efficiency.

[0004] Therefore, it is necessary to improve the gear box transmission technology in the prior art to solve the technical problem of targeted function detection. SUMMARY

[0005] The purpose of the present application is to provide an optimized gear box and a performance detection method thereof to solve the above technical problems.

[0006] To achieve this purpose, the present application adopts the following technical solutions:

[0007] A performance detection method of an optimized gear box, comprising:

[0008] Step S1: providing an optimized gear box, the optimized gear box comprising a gear box cover plate, an output gear, and a core gear set connected with a motor output shaft; the core gear set and the output gear are single-rotation transmission, and a swinging transmission assembly is arranged between the core gear set and the gear box cover plate for driving the gear box to swing;

[0009] Step S2: installing a rotation direction detection component on the output gear, and installing a swing state detection component on the gear box cover plate;

[0010] Step S3: controlling the motor to operate according to a predetermined forward rotation and reverse rotation sequence, so that the central shaft rotates in clockwise and counterclockwise directions respectively, drives the gear box to work, and drives the special-shaped magnet to drive the circular ring iron block to swing the gear box cover plate;

[0011] Step S4: collecting first detection data of the rotation direction detection component and second detection data of the swing state detection component, respectively analyzing whether the rotation consistency of the output gear and the swing amplitude and frequency of the gear box cover plate meet the design requirements, and evaluating the performance of the optimized gear box according to the analysis results.

[0012] Optionally, the step S4 specifically includes:

[0013] Step S41: inputting the first detection data of the rotation direction detection component into a data processing module, recording the rotation direction of the output gear under the conditions of forward rotation and reverse rotation of the motor, and generating time series data of the rotation direction of the output gear;

[0014] Step S42: analyzing the time series data, extracting the rotation direction information of the output gear under the conditions of forward rotation and reverse rotation of the motor respectively, determining whether the rotation direction of the output gear remains consistent under different motor rotation conditions, and verifying the rotation consistency of the output gear.

[0015] Optionally, the step S42 further includes:

[0016] Step S43: inputting the second detection data of the swing state detection component into the data processing module, calculating the swing amplitude and swing frequency of the gear box cover plate, and generating a swing parameter curve of the gear box cover plate;

[0017] Step S44: comparing the swing parameter curve with a design requirement swing parameter range, evaluating the swing amplitude and swing frequency of the gear box cover plate, and detecting whether there is swing abnormality or deviation out-of-limit condition;

[0018] Step S45: combining the analysis results of the rotation consistency of the output gear and the evaluation results of the swing parameters of the gear box cover plate, comprehensively judging whether the performance of the optimized gear box meets the design requirements, if yes, judging as a qualified product, and if no, judging as an unqualified product and analyzing the abnormal reasons.

[0019] Optionally, the step S43 specifically includes:

[0020] Step S431: transmit the second detection data of the swing state detection assembly to the data processing module, the second detection data being a real-time displacement signal of the gear box cover plate during the swing process;

[0021] Step S432: data preprocessing is performed on the real-time displacement signal, a filtering algorithm is used to eliminate noise and interference, and effective displacement data of the gear box cover plate is obtained;

[0022] Step S433: based on the effective displacement data, the instantaneous swing amplitude of the gear box cover plate is calculated using the time-displacement relationship, the displacement peak and valley are extracted, and the maximum value, minimum value and average value of the swing amplitude are calculated;

[0023] Step S434: frequency domain analysis is performed on the effective displacement data, and the swing frequency of the gear box cover plate is extracted using the fast Fourier transform method to generate a frequency spectrum diagram;

[0024] Step S435: the data results of the swing amplitude and the swing frequency are integrated to generate a swing parameter curve of the gear box cover plate, including a swing amplitude-time curve and a swing frequency-time curve, and the swing characteristics of the gear box cover plate are displayed in a graphical manner.

[0025] Optionally, the step S4 further comprises:

[0026] Step S5: according to the performance evaluation result of the optimized gear box, the detection conditions, the detection conditions and the corresponding classification are recorded, a performance detection report is generated, and improvement suggestions are made for the abnormal reasons of unqualified products.

[0027] Optionally, the rotation direction detection assembly is an optical encoder for real-time detection of the rotation direction and speed of the output gear.

[0028] Optionally, the swing state detection assembly is a laser displacement sensor for non-contact detection of the swing amplitude and frequency of the gear box cover plate.

[0029] Optionally, the optimized gear box further comprises a driving gear set arranged adjacent to the core gear set, and the driving gear set is engaged with the output gear.

[0030] The core gear set comprises a center shaft connected with the output shaft of the motor, and a first gear and a second gear are arranged on the center shaft in sequence; the first gear is engaged with the driving gear set, and the second gear is engaged with the driving gear set through an idler gear.

[0031] Optionally, a third gear and a fourth gear are arranged above and below the driving gear set, and the third gear and the fourth gear are arranged with a spacing therebetween to form a spacing space; the third gear is engaged with the first gear of the core gear set, and the second gear is aligned with the spacing space.

[0032] The fourth gear and the second gear are respectively engaged with the idler gear, so that the second gear and the driving gear set are indirectly driven.

[0033] Optionally, the first gear and the central shaft are provided with a counterclockwise one-way bearing, and the second gear and the central shaft are provided with a clockwise one-way bearing.

[0034] The swing transmission assembly comprises a special-shaped magnet arranged at the front end of the central shaft, a circular iron block is fixedly arranged on the gear box cover plate, a sliding bearing is arranged in the inner hole of the circular iron block, and the central shaft passes through the sliding bearing.

[0035] The special-shaped magnet and the circular iron block are arranged opposite to each other, so as to realize the swing of the gear box through magnetic attraction.

[0036] Compared with the prior art, the present application has the following beneficial effects: an optimized gear box is provided, a rotation direction detection assembly is installed on the output gear, a swing state detection assembly is installed on the gear box cover plate, the motor is controlled to operate according to a predetermined forward rotation and reverse rotation sequence, the central shaft is rotated in clockwise and counterclockwise directions respectively, the core gear set is driven to work, the swing of the gear box cover plate is realized through the swing transmission assembly, the first detection data of the rotation direction detection assembly and the second detection data of the swing state detection assembly are collected, the rotation consistency of the output gear and whether the swing amplitude and frequency of the gear box cover plate meet the design requirements are analyzed respectively, and the performance of the optimized gear box is evaluated according to the analysis results; through the targeted detection means, various working conditions of the optimized gear box in actual work are simulated, the rotation direction of the output gear and the swing state of the gear box are monitored in real time, the transmission characteristics of the core gear set and the working performance of the swing transmission assembly are verified, and the key performance of the gear box is comprehensively evaluated. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0038] The structure, proportion, size and the like shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and do not have technical significance to limit the conditions that can be implemented by the present application. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0039] Fig. 1 Figure 1 is a flowchart of the performance detection method of the optimized gearbox of the first embodiment of the present application.

[0040] Fig. 2 Figure 2 is another flowchart of the performance detection method of the optimized gearbox of the first embodiment of the present application.

[0041] Fig. 3 Figure 3 is a schematic diagram of the overall structure of the optimized gearbox of the first embodiment of the present application.

[0042] Fig. 4 Figure 4 is a schematic diagram of the internal structure of the optimized gearbox of the first embodiment of the present application.

[0043] Fig. 5 Figure 5 is a schematic diagram of the swing transmission assembly of the optimized gearbox of the first embodiment of the present application.

[0044] Illustration: Gearbox cover plate 10, output gear 20, core gear set 30, swing transmission assembly 40, driving gear set 50, center shaft 31, first gear 32, second gear 33, third gear 51, fourth gear 52, spacing space 53, idler gear 60, special-shaped magnet 41, circular ring iron block 42, sliding bearing 43. DETAILED DESCRIPTION

[0045] In order to make the invention purpose, features, advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0046] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there can be a component disposed therebetween.

[0047] The technical solutions of the present application will be further illustrated below in conjunction with the drawings and through specific embodiments.

[0048] Embodiment one:

[0049] In conjunction with Figs. 1-2 The embodiment of the present application provides a performance detection method for optimizing a gear box, which comprises the following steps:

[0050] Step S1: providing an optimized gear box, the optimized gear box comprising a gear box cover plate 10, an output gear 20, and a core gear set 30 connected with a motor output shaft; the core gear set 30 and the output gear 20 are single-rotation transmission, and a swing transmission assembly 40 is arranged between the core gear set 30 and the gear box cover plate 10 for driving the gear box to swing;

[0051] It should be noted that the single-rotation transmission is achieved between the core gear set 30 and the output gear 20, which ensures that the rotation direction of the output gear 20 remains consistent regardless of the forward or reverse rotation of the motor; at the same time, the swing transmission assembly 40 is arranged between the core gear set 30 and the gear box cover plate 10, and the swing function of the gear box is achieved through the magnetic force of the special-shaped magnet 41 and the circular iron block. When the core gear set 30 operates, the gear box cover plate 10 is driven to swing. The design purpose of this structure is to achieve power output while achieving the swing function of the gear box by controlling the forward and reverse rotation of the motor, thereby meeting the demand for multifunctional applications.

[0052] Step S2: installing a rotation direction detection assembly on the output gear 20 and a swing state detection assembly on the gear box cover plate 10 to obtain the running state data of the optimized gear box.

[0053] Step S3: controlling the motor to operate according to a predetermined forward and reverse rotation sequence, so that the central shaft 31 rotates in clockwise and counterclockwise directions respectively, drives the gear box to work, and drives the special-shaped magnet 41 to drive the circular iron block 42 to swing the gear box cover plate 10;

[0054] According to the pre-set forward and reverse sequence, the motor is controlled to run, so that the central shaft 31 rotates in clockwise and counterclockwise directions respectively. Due to the special design of the core gear set 30, when the motor rotates forward, the core gear set 30 drives the gear box cover plate 10 to swing through the swing transmission assembly 40, while the output gear 20 keeps the same rotation direction; when the motor reverses, the swing transmission assembly 40 is also used to realize the swing of the gear box cover plate 10, and the rotation direction of the output gear 20 remains unchanged. Through the forward and reverse rotation of the motor, not only the running condition of the gear box in different working modes is simulated, but also the consistency of the rotation direction of the output gear 20 and the effectiveness of the swing function of the gear box are verified under the condition of forward and reverse rotation.

[0055] Step S4: Collecting the first detection data of the rotation direction detection assembly and the second detection data of the swing state detection assembly, respectively analyzing the rotation consistency of the output gear 20 and whether the swing amplitude and frequency of the gear box cover plate 10 meet the design requirements, and evaluating the performance of the optimized gear box according to the analysis results.

[0056] The first detection data obtained by the rotation direction detection assembly is the rotation direction and speed information of the output gear 20 under the condition of motor forward and reverse rotation; at the same time, the second detection data obtained by the swing state detection assembly is the swing amplitude and frequency data of the gear box cover plate 10 in the working process. The first detection data is analyzed to verify whether the rotation direction of the output gear 20 is always consistent under different motor rotation conditions, to ensure the reliability of the transmission system. The second detection data is analyzed to calculate the actual swing amplitude and frequency of the gear box cover plate 10, and compared with the design requirements to evaluate whether the performance of the swing mechanism meets the expectation. According to the above analysis results, the overall performance of the optimized gear box is comprehensively evaluated to determine whether it meets the design specifications and actual application requirements. If there is a situation that does not meet the design requirements, further analysis is needed, which may involve single direction bearing failure, gear meshing problem or magnetic transmission assembly abnormality, etc., to provide basis for subsequent improvement and optimization.

[0057] The working principle of the present application is as follows: an optimized gear box is provided, a rotation direction detection assembly is installed on the output gear 20, a swing state detection assembly is installed on the gear box cover plate 10, the motor is controlled to operate according to a predetermined forward rotation and reverse rotation sequence, the central shaft 31 rotates in the clockwise and counterclockwise directions respectively, the core gear set 30 is driven to work, and the swing of the gear box cover plate 10 is realized through the swing transmission assembly 40, the first detection data of the rotation direction detection assembly and the second detection data of the swing state detection assembly are collected, the rotational consistency of the output gear 20 and whether the swing amplitude and frequency of the gear box cover plate 10 meet the design requirements are analyzed respectively, and the performance of the optimized gear box is evaluated according to the analysis results; through the targeted detection means, various working conditions of the optimized gear box in actual work are simulated, the real-time monitoring of the rotation direction of the output gear 20 and the swing state of the gear box is realized, the transmission characteristics of the core gear set 30 and the working performance of the swing transmission assembly 40 are verified, and the key performance of the gear box is comprehensively evaluated.

[0058] In the present embodiment, it is specifically explained that step S4 specifically comprises:

[0059] Step S41: input the first detection data of the rotation direction detection assembly into the data processing module, record the rotation direction of the output gear 20 under the motor forward rotation and reverse rotation operation conditions, and generate time sequence data of the rotation direction of the output gear 20;

[0060] The first detection data obtained by the rotation direction detection assembly is input into the data processing module. The first detection data contains the rotation direction information of the output gear 20 under the motor forward rotation (clockwise rotation) and reverse rotation (counterclockwise rotation) operation conditions. By recording these data, time sequence data of the rotation direction of the output gear 20 is generated. This time sequence data reflects the rotation direction change of the output gear 20 in the entire test process in detail, providing a complete data basis for subsequent analysis.

[0061] Step S42: analyze the time sequence data, respectively extract the rotation direction information of the output gear 20 under the motor forward rotation and reverse rotation, and determine whether the rotation direction of the output gear 20 remains consistent under different motor rotation conditions, and verify the rotational consistency of the output gear 20.

[0062] The time sequence data generated in step S41 is analyzed. The data processing module extracts the rotation direction information of the output gear 20 under the motor forward rotation and reverse rotation respectively. Through comparative analysis, it is determined whether the rotation direction of the output gear 20 remains consistent under different motor rotation conditions. This step aims to verify the rotational consistency of the output gear 20 and ensure that the single-rotation transmission mechanism of the optimized gear box works normally, that is, whether the motor is forward or reverse, the output gear 20 always maintains the same rotation direction.

[0063] Step S43: input the second detection data of the swing state detection assembly into the data processing module, calculate the swing amplitude and swing frequency of the gearbox cover plate 10, and generate a swing parameter curve of the gearbox cover plate 10. The swing parameter curve directly shows the swing characteristics of the gearbox cover plate 10, reflecting the actual working state of the swing transmission assembly 40.

[0064] Step S44: compare the swing parameter curve with the design required swing parameter range, evaluate the swing amplitude and swing frequency of the gearbox cover plate 10, and detect whether there is swing abnormality or deviation out of limit;

[0065] Compare the swing parameter curve generated in step S43 with the design required swing parameter range. By evaluating the actual swing amplitude and swing frequency of the gearbox cover plate 10, it is detected whether there is swing abnormality or deviation out of the allowed range. For example, the design requires the swing amplitude to be within a certain range, and the swing frequency to meet the set value. If the actual detection result exceeds these ranges, it may indicate that the swing mechanism is abnormal, ensuring that the performance of the swing transmission assembly 40 meets the design specification, and ensuring the reliability of the gearbox in actual application.

[0066] Step S45: combine the analysis results of the output gear 20 rotation consistency and the evaluation results of the gearbox cover plate 10 swing parameters to comprehensively judge whether the performance of the optimized gearbox meets the design requirements. If yes, it is judged as a qualified product; if no, it is judged as an unqualified product, and the abnormal reason is analyzed.

[0067] If there is an abnormality, further diagnosis of possible fault reasons is needed, for example:

[0068] One-way bearing failure: causes transmission direction abnormality or gear non-operation.

[0069] Gear meshing failure: causes unstable rotation of the output gear 20 or abnormal swing amplitude.

[0070] Magnetic transmission assembly abnormality: damage of special-shaped magnet 41 or circular iron block, causing swing failure.

[0071] In this embodiment, it is specifically explained that step S43 specifically includes:

[0072] Step S431: transmit the second detection data of the swing state detection assembly to the data processing module, and the second detection data is the real-time displacement signal of the gearbox cover plate 10 in the swing process;

[0073] The second detection data obtained by the swing state detection assembly is transmitted to the data processing module. The second detection data is the real-time displacement signal of the gear box cover plate 10 during the swing process, reflecting the position change of the gear box cover plate 10 at each time point. By inputting these real-time displacement signals into the data processing module, basic data is provided for subsequent data analysis and calculation.

[0074] Step S432: data preprocessing is performed on the real-time displacement signal, and a filtering algorithm is used to eliminate noise and interference to obtain effective displacement data of the gear box cover plate 10;

[0075] The obtained real-time displacement signal is preprocessed. Since the signal may be affected by environmental noise and equipment interference during actual measurement, a filtering algorithm (such as a low-pass filter, a Kalman filter, etc.) is used to process the signal, eliminate noise and interference, and extract effective displacement information. After filtering, the obtained effective displacement data more accurately reflects the true swing state of the gear box cover plate 10.

[0076] Step S433: based on the effective displacement data, the instantaneous swing amplitude of the gear box cover plate 10 is calculated using the time-displacement relationship, the peak and valley values of displacement are extracted, and the maximum, minimum and average values of the swing amplitude are calculated;

[0077] Based on the obtained effective displacement data, the instantaneous swing amplitude of the gear box cover plate 10 is calculated using the time-displacement relationship. Specifically, by analyzing the displacement data, the peak (maximum displacement) and valley (minimum displacement) values of the signal are extracted, and the swing amplitude in each period is calculated. Then, the maximum, minimum and average values of the swing amplitude are calculated to fully understand the swing characteristics and consistency of the gear box cover plate 10. These parameters can reflect the performance stability of the swing component.

[0078] Step S434: frequency domain analysis is performed on the effective displacement data, and a fast Fourier transform method is used to extract the swing frequency of the gear box cover plate 10 to generate a frequency spectrum;

[0079] The effective displacement data is analyzed in the frequency domain, and a fast Fourier transform (FFT) method is used to convert the displacement signal in the time domain to the frequency domain, and the swing frequency of the gear box cover plate 10 is extracted. By generating a frequency spectrum, the amplitudes of each frequency component in the signal can be observed directly, and the main swing frequency and possible harmonic or noise interference can be determined. Frequency domain analysis helps to evaluate the dynamic performance of the swing mechanism and detect whether there are resonance or frequency deviation abnormalities.

[0080] Step S435: Integrate the data results of the swing amplitude and swing frequency to generate the swing parameter curve of the gearbox cover plate 10, including the swing amplitude-time curve and the swing frequency-time curve, to graphically display the swing characteristics of the gearbox cover plate 10.

[0081] The swing amplitude data obtained in step S433 and the swing frequency data obtained in step S434 are integrated to generate the swing parameter curve of the gearbox cover plate 10. The swing parameter curve includes the swing amplitude-time curve and the swing frequency-time curve, which intuitively displays the swing characteristics of the gearbox cover plate 10 in a graphical manner. By observing these curves, the swing behavior of the gearbox cover plate 10 can be comprehensively understood, and possible abnormal changes can be found, providing important basis for performance evaluation and fault diagnosis.

[0082] In this embodiment, it is further illustrated that after step S4, it further includes:

[0083] Step S5: According to the performance evaluation results of the optimized gearbox, record the detection conditions, detection data and corresponding classification, generate a performance detection report, and propose improvement suggestions for the abnormal reasons of unqualified products.

[0084] According to the performance evaluation results of the optimized gearbox in the preceding steps, record the detection conditions, detection data and corresponding classification. Specifically, the information such as the equipment used in the detection process, environmental conditions, motor operating parameters, etc. is recorded in detail. Then, a performance detection report is generated, which includes detection methods, data analysis results, performance evaluation conclusions, etc. For the gearbox judged as unqualified, further analyze the abnormal reasons, which may involve single direction bearing failure, poor gear meshing, magnetic transmission assembly failure, etc., and propose targeted improvement suggestions. The purpose of this step is to comprehensively summarize and archive the detection process and results, provide basis for product quality control and subsequent improvement, and ensure that the optimized gearbox has reliable performance and quality in actual application.

[0085] In this embodiment, as a preferred solution, the rotation direction detection assembly is an optical encoder for real-time detection of the rotation direction and speed of the output gear 20.

[0086] In this embodiment, in order to accurately and in real time detect the rotation direction and speed of the output gear 20, an optical encoder is selected as the rotation direction detection assembly. The optical encoder is installed on the output gear 20 and uses photoelectric sensing technology to convert mechanical rotation into electrical signals, so as to accurately obtain the rotation direction and speed information of the output gear 20. In the performance detection method of the gearbox, the real-time data provided by the optical encoder is input to the data processing module for analysis of the rotation consistency of the output gear 20 under the conditions of motor forward rotation and reverse rotation.

[0087] In the embodiment, as a preferred solution, the swing state detection assembly is a laser displacement sensor, which is used to non-contact detect the swing amplitude and frequency of the gear box cover plate 10.

[0088] It should be noted that, in order to avoid physical interference to the swing of the gear box cover plate 10, the laser displacement sensor is selected as the swing state detection assembly. The laser displacement sensor is installed at a fixed position, is aligned with a specific part of the gear box cover plate 10, and non-contact detects the real-time displacement change of the gear box cover plate 10 in the swing process by using the laser ranging principle. The sensor can capture a small amount of displacement with high precision and high response speed, and input the second detection data into the data processing module.

[0089] Embodiment two:

[0090] In combination with Figs. 3-5 It is shown that the application also provides an optimized gear box, which specifically comprises a gear box cover plate 10, an output gear 20, and a core gear set 30 connected with an output shaft of a motor, and a swing transmission assembly 40 is arranged between the core gear set 30 and the gear box cover plate 10.

[0091] In the embodiment, it is further illustrated that the optimized gear box further comprises a driving gear set 50 arranged adjacent to the core gear set 30, the driving gear set 50 is engaged with the output gear 20; the core gear set 30 comprises a center shaft 31 connected with the output shaft of the motor, the center shaft 31 is sequentially provided with a first gear 32 and a second gear 33, the first gear 32 is engaged with the driving gear set 50, and the second gear 33 is engaged with the driving gear set 50 through an idler gear 60.

[0092] In the embodiment, it is specifically illustrated that the driving gear set 50 is provided with a third gear 51 and a fourth gear 52 in an up-down manner, the third gear 51 and the fourth gear 52 are arranged with a spacing therebetween to form a spacing space 53; the third gear 51 is engaged with the first gear 32 of the core gear set 30, and the second gear 33 is aligned with the spacing space 53; wherein the fourth gear 52 and the second gear 33 are respectively engaged with the idler gear 60, so that the second gear 33 and the driving gear set 50 are indirectly transmitted.

[0093] The working principle of the optimized gear box is as follows: the internal structure of the optimized gear box is as described above, and the core is the optimized design of the transmission scheme between the core gear set 30 and the output gear 20. The motor is divided into two modes of forward rotation and reverse rotation: when the motor rotates forward (clockwise), the first gear 32 does not rotate, the second gear 33 rotates clockwise, thereby driving the idler gear 60 to rotate counterclockwise, the idler gear 60 drives the fourth gear 52 to rotate clockwise, and the fourth gear 52 drives the output gear 20 to rotate counterclockwise.

[0094] When the motor reverses (counterclockwise), the first gear 32 rotates counterclockwise, the second gear 33 does not rotate, and the first gear 32 directly drives the core gear set 30 to rotate clockwise (because the two are engaged), and the core gear set 30 drives the output gear 20 to rotate counterclockwise.

[0095] Therefore, it can be known that no matter the motor is forward or reverse, the output gear 20 is counterclockwise, and the rotation direction of the motor does not affect the rotation direction of the output gear 20. Through this design, no matter the motor is forward or reverse, the output gear 20 can rotate in a constant direction, realizing the function of single-rotation transmission.

[0096] In this embodiment, the first gear 32 and the center shaft 31 are provided with a counterclockwise one-way bearing, and the second gear 33 and the center shaft 31 are provided with a clockwise one-way bearing; the swing transmission assembly 40 includes a special-shaped magnet 41 arranged on the front end of the center shaft 31, and a circular iron block 42 is fixedly arranged on the gear box cover plate 10. The inner hole of the circular iron block 42 is provided with a sliding bearing 43, and the center shaft 31 passes through the sliding bearing 43; the special-shaped magnet 41 is arranged opposite to the circular iron block 42 to realize the swing of the gear box through magnetic attraction.

[0097] It should be noted that the special-shaped magnet 41 and the circular iron block 42 are arranged opposite to each other, and the magnetic attraction is used. When the center shaft 31 rotates, the special-shaped magnet 41 drives the circular iron block 42 to move relatively, and further drives the gear box cover plate 10 to swing around the center shaft 31. Since the center shaft 31 is eccentrically installed on the gear box cover plate 10, the swing mode of the magnetic coupling realizes the swing arm function of the gear box. During the swing process, if an obstacle is encountered, the magnetic transmission allows the gear box cover plate 10 to be passively stopped from swinging, avoiding mechanical damage and improving the safety and reliability of the device.

[0098] The special-shaped magnet 41 and the circular iron block are arranged opposite to each other, so that when the center shaft 31 drives the special-shaped magnet 41 to rotate, the special-shaped magnet 41 can drive the circular iron block to rotate through magnetic attraction. The rotation of the circular iron block drives the gear box cover plate 10 to swing around the center shaft 31 (the center shaft 31 is arranged at an eccentric position of the gear box cover plate 10), thereby realizing the swing work of the gear box; it should be understood that the swing here refers to the swing of the gear box around the center shaft 31.

[0099] Then, as mentioned earlier, the motor has two states of forward and reverse, so the motor alternates between forward and reverse to realize the swing work of the gear box (the swing can be understood as an action of swinging away and swinging back).

[0100] Therefore, the technical scheme of the present application is to realize the swing arm action through the forward and reverse rotation of the motor, but does not affect the transmission direction of the gear box, that is, the present scheme simultaneously realizes the power output of the gear set and the swing work of the gear box through a group of motors; a function of adding the swing arm action while realizing the work of the output shaft by a single motor is designed, and the rotation direction during the execution of the external swing action is ensured to be unchanged, the swing arm will not be stuck or push the obstacle when encountering the obstacle, and different rotation speeds can also be used for work. The technology belongs to the gear transmission device and can be applied to multiple fields and occasions.

[0101] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method of optimising performance testing of a gearbox, characterised by, The application relates to an optimized gearbox performance evaluation method. Step S1: providing an optimized gearbox, which comprises a gearbox cover plate, an output gear and a core gear set connected with a motor output shaft; the core gear set and the output gear are single-rotation transmission, and a swing transmission assembly is arranged between the core gear set and the gearbox cover plate for driving the gearbox to swing; Step S2: installing a rotation direction detection assembly on the output gear and a swing state detection assembly on the gearbox cover plate; Step S3: controlling the motor to run according to a predetermined forward rotation and reverse rotation sequence, so that the central shaft rotates in clockwise and counterclockwise directions respectively, drives the gearbox to work, and makes the special-shaped magnet drive the circular ring iron block to realize the swing of the gearbox cover plate; Step S4: collecting first detection data of the rotation direction detection assembly and second detection data of the swing state detection assembly, respectively analyzing whether the rotation consistency of the output gear and the swing amplitude and frequency of the gearbox cover plate meet the design requirements, and evaluating the performance of the optimized gearbox according to the analysis results.

2. The method of claim 1, wherein, The step S4 specifically comprises: Step S41: inputting the first detection data of the rotation direction detection assembly into a data processing module, recording the rotation direction of the output gear under the motor forward rotation and reverse rotation running conditions, and generating time sequence data of the rotation direction of the output gear; Step S42: analyzing the time sequence data, respectively extracting the rotation direction information of the output gear under the motor forward rotation and reverse rotation, determining whether the rotation direction of the output gear remains consistent under different motor rotation conditions, and verifying the rotation consistency of the output gear.

3. The method of claim 2, wherein, The step S42 further comprises: Step S43: inputting the second detection data of the swing state detection assembly into the data processing module, calculating the swing amplitude and swing frequency of the gearbox cover plate, and generating a swing parameter curve of the gearbox cover plate; Step S44: comparing the swing parameter curve with a swing parameter range required by the design, evaluating the swing amplitude and swing frequency of the gearbox cover plate, and detecting whether swing abnormity or deviation out-of-limit condition exists; Step S45: comprehensively judging whether the performance of the optimized gearbox meets the design requirements in combination with the analysis results of the rotation consistency of the output gear and the evaluation results of the swing parameters of the gearbox cover plate, if yes, judging that the product is qualified; if no, judging that the product is unqualified and analyzing abnormal reasons.

4. The method of claim 3, wherein, The step S43 specifically comprises: Step S431: transmitting the second detection data of the swing state detection assembly to the data processing module, wherein the second detection data is real-time displacement signals of the gearbox cover plate in the swing process; Step S432: pre-processing the real-time displacement signals, adopting a filtering algorithm to eliminate noise and interference, and obtaining effective displacement data of the gearbox cover plate; Step S433: based on the effective displacement data, calculating the instantaneous swing amplitude of the gearbox cover plate by using a time-displacement relationship, extracting displacement peak values and valley values, and calculating the maximum value, minimum value and average value of the swing amplitude; Step S434: performing frequency domain analysis on the effective displacement data, extracting the swing frequency of the gearbox cover plate by using a fast Fourier transform method, and generating a frequency spectrum diagram; Step S435: integrate the data results of the swing amplitude and swing frequency, generate a swing parameter curve of the gear box cover plate, including a swing amplitude-time curve and a swing frequency-time curve, and display the swing characteristics of the gear box cover plate in a graphical manner.

5. The method of claim 3, wherein, The step S4 further comprises: Step S5: according to the performance evaluation results of the optimized gear box, record the detection conditions, detection conditions and corresponding classification, generate a performance detection report, and put forward improvement suggestions for the abnormal reasons of unqualified products.

6. The method of claim 1, wherein, The rotation direction detection assembly is an optical encoder for real-time detection of the rotation direction and speed of the output gear.

7. The method of claim 1, wherein, The swing state detection assembly is a laser displacement sensor for non-contact detection of the swing amplitude and frequency of the gear box cover plate.

8. The method of claim 1, wherein, The optimized gear box further comprises a driving gear set arranged adjacent to the core gear set, and the driving gear set is engaged with the output gear. The core gear set comprises a center shaft connected with the output shaft of the motor, and a first gear and a second gear are arranged on the center shaft in sequence.

9. A method of performance testing of an optimised gearbox as claimed in claim 8, characterised in that, The first gear is engaged with the driving gear set, and the second gear is engaged with the driving gear set through an idler gear. The third gear and the fourth gear are arranged above and below the driving gear set, and the third gear and the fourth gear are arranged with a spacing therebetween to form a spacing space; the third gear is engaged with the first gear of the core gear set, and the second gear is aligned with the spacing space.

10. A method of performance testing of an optimised gearbox as claimed in claim 9, characterised in that, The fourth gear and the second gear are respectively engaged with the idler gear, so that the second gear and the driving gear set are indirectly transmitted. The first gear and the center shaft are provided with a counterclockwise one-way bearing, and the second gear and the center shaft are provided with a clockwise one-way bearing. The swing transmission assembly comprises a special-shaped magnet arranged at the front end of the center shaft, and a circular iron block is fixedly arranged on the gear box cover plate. The inner hole of the circular iron block is provided with a sliding bearing, and the center shaft passes through the sliding bearing. The special-shaped magnet is arranged opposite to the circular iron block to realize the swing of the gear box through magnetic attraction.

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