Static torsion test system and method
The static torsion test system addresses the lack of unified standards in transmission testing by employing multiple torque sensors and a PID controller to ensure precise and safe testing of hybrid transmissions, adapting to diverse measurement needs and correcting torque and angle deviations.
Patent Information
- Application Number
- CN202411130763.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2024-12-20
AI Technical Summary
The industry lacks a unified standard for static torsion strength tests of transmissions, particularly for hybrid transmissions with power output on both sides, leading to inefficiencies and potential safety risks.
A static torsion test system with multiple torque sensors of varying ranges, a PID controller, and a slide rail mechanism for detachable installation, along with an angle sensor, to accurately measure and control torque and deflection angles, ensuring precise and safe testing of transmissions.
The system provides standardized and efficient testing of transmissions, improving accuracy and safety by adapting to different measurement requirements and correcting torque and angle deviations, thereby enhancing the reliability of hybrid transmission testing.
Smart Images
Figure CN119164645A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of testing technology, and in particular to a static torsion testing system and method. Background Art
[0002] At present, with the rapid development of transmissions, the test methods for static torsional strength tests of transmissions are quite different from those of traditional transmissions, and the industry has not yet reached a unified standard. Summary of the invention
[0003] The purpose of the present application is to provide a static torsion test system and method, which can form a standard for the test of the transmission and can effectively implement the static torsion strength test of the transmission.
[0004] In a first aspect, the present invention provides a static torsion test system, comprising: a test device; the test device comprises: a driving device for outputting a driving force; a transmission device connected to the driving device, the driving force being used to drive the transmission device to rotate; a torque sensor connected between the transmission to be tested and the transmission device, for testing the torque of the transmission to be tested; the number of the test devices is at least two, wherein the first test device in the test device is used to connect to the first power side of the transmission to be tested; and the second test device in the test device is used to connect to the second power side of the transmission to be tested.
[0005] In the above embodiment, the torsion of the transmission to be tested can be driven by the driving device and the transmission device, and a torque sensor is arranged between the transmission device and the transmission to be tested, and the torque formed by the transmission device and the transmission to be tested can be tested based on the torque sensor, thereby realizing a static torsion test. Furthermore, for a hybrid transmission with power output on both sides, two test devices can be connected to the power output ends on both sides of the hybrid transmission respectively, so as to realize a torque test based on the torque on both sides.
[0006] In an optional embodiment, the torque sensor includes a first torque sensor and a second torque sensor, and the first torque sensor is connected to the second torque sensor via a connecting member; the measuring range of the first torque sensor is greater than that of the second torque sensor.
[0007] In the above implementation, different measurement ranges may be selected to implement the measurement based on different measurement requirements, so that the test results may be more accurate.
[0008] In an optional embodiment, the second torque sensor is detachably installed between the transmission to be tested and the transmission device.
[0009] In the above embodiment, the second torque sensor with a small range can be set to a detachable installation mode. When the first torque sensor with a large range is needed, the second torque sensor can be disassembled, which can reduce the loss of the second torque sensor with a small range and improve the accuracy of measuring torque, thereby improving the safety of the torque sensor.
[0010] In an optional embodiment, it also includes: a first flange; the second torque sensor is mounted on a second sensor bracket, and the second sensor bracket is mounted on a slide rail; wherein the second sensor bracket is slidably mounted on the slide rail, and when the second sensor bracket is in a first position on the slide rail, the second torque sensor is connected between the transmission to be tested and the transmission device; when the second sensor bracket is in a second position on the slide rail, the second torque sensor is disconnected from the transmission to be tested and the transmission device, and the transmission to be tested and the transmission device are connected via the first flange.
[0011] In the above embodiment, by providing a slide rail, when the second torque sensor with a small range is not needed, it can be disconnected from the connection between the transmission to be tested and the transmission device, which can reduce the loss of a large amount of torque to it and improve the safety of the second torque sensor. In addition, by adjusting the position of the second torque sensor by means of a slide rail, it can be more convenient to disconnect it from the transmission to be tested and the transmission device, and it can also be more convenient to connect it between the transmission to be tested and the transmission device.
[0012] In an optional embodiment, it also includes: a proportional-integral-derivative control (PID) controller, which is used to adjust the deflection angle deviation between the first power side of the transmission to be tested and the second power side of the transmission to be tested; the PID controller adjusts the control parameters of the PID controller based on the first torque data of the torque sensor of the first test equipment and the second torque data of the torque sensor of the second test equipment.
[0013] In the above implementation, the control parameters of the PID controller can be adjusted based on the torque data on both sides obtained from the test, so that the test is more efficient and the torque control is more accurate.
[0014] In an optional embodiment, it also includes: an angle sensor arranged at a position different from the position of the drive device, the transmission device and the shaft where the torque sensor is located, and the angle sensor is used to detect the deflection angle of the shaft where the drive device, the transmission device and the torque sensor are located.
[0015] In an optional embodiment, a PID controller is used to adjust the deflection angle deviation between the first power side of the transmission to be tested and the second power side of the transmission to be tested; the PID controller adjusts the control parameters of the PID controller based on the first angle data of the angle sensor of the first test equipment and the second angle data of the angle sensor of the second test equipment.
[0016] In the above implementation, the control parameters of the PID controller can be adjusted based on the deflection angle data on both sides obtained from the test, so that the test is more efficient and the torque control is more accurate.
[0017] In an optional embodiment, it also includes: a support base connected to the torque sensor, which is used to install the transmission to be tested.
[0018] In the above embodiment, a support seat may be further provided, so as to improve the stability of the transmission to be tested and make the test result of the transmission to be tested more reliable.
[0019] In an optional embodiment, it further includes: a first bearing platform for installing the first test equipment; and a second bearing platform for installing the second test equipment.
[0020] In a second aspect, the present invention provides a static torsion test method, comprising: using the static torsion test system described in any one of the aforementioned embodiments to perform a static torsion test on a transmission to be tested. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 A schematic diagram of the structure of a static torsion test system provided in an embodiment of the present application;
[0023] Figure 2 A schematic structural diagram of a static torsion test system provided in an embodiment of the present application from another angle;
[0024] Figure 3 Another structural schematic diagram of the static torsion test system provided in an embodiment of the present application;
[0025] Figure 4 A schematic diagram of the control principle of the PID controller provided in the embodiment of the present application;
[0026] Figure 5A schematic diagram of a control method for implementing a test of a transmission to be tested based on a torque value control provided in an embodiment of the present application;
[0027] Figure 6 A schematic diagram of controlling a transmission to be tested based on deflection angle control provided in an embodiment of the present application.
[0028] Icons: 100-first test equipment; 200-second test equipment; 101-platform; 102-driving device; 103-first sensor bracket; 104-support seat; 105-bearing disk; 107-first bushing; 108-transmission device; 110-first torque sensor; 112-second torque sensor; 113-second sensor bracket; 114-large synchronous pulley; 115-angle sensor; 116-diaphragm coupling; 120-sleeve transition plate; 121-first connecting shaft disk; 122-second connecting shaft disk; 123-slide rail; 124-slider; 125-second bushing; 126-universal shaft transition plate; 127-first replacement shaft; 128-second replacement shaft; 129-base plate. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings in the embodiments of the present application.
[0030] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0031] In the description of the present application, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be interpreted as a limitation of the present application.
[0032] In the description of this application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0033] Figure 1 This is a schematic diagram of the structure of the static torsion test system provided in the embodiment of the present application. Figure 1 The static torsion test system may include: a test device.
[0034] The test device can be placed on a test bench.
[0035] The static torsion test system may include one or more test devices, which may be specifically determined based on the number of output ends in the transmission to be tested.
[0036] In this embodiment, the test equipment may include: a driving device 102, a transmission device 108 and a torque sensor.
[0037] The drive device 102 is connected to the transmission device 108. For example, the drive device 102 and the transmission device 108 can be connected by a connector. When the drive device 102 and the transmission device 108 are connected by shafts, the drive device 102 and the transmission device 108 can be connected by connectors such as flanges.
[0038] The driving device 102 may be used to output a driving force, and the driving force may be used to drive the transmission device 108 to rotate. Optionally, the driving device 102 may include a servo motor.
[0039] The torque sensor may be disposed between the transmission to be tested and the transmission device 108. The torque sensor may be used to test the torque of the transmission to be tested.
[0040] Optionally, considering the small size of the torque sensor, the torque sensor can be supported by a sensor bracket. The torque sensor can be mounted on the sensor bracket. One end of the sensor bracket is used to mount the torque sensor, and the other end of the sensor bracket can be mounted on the test bench.
[0041] A high-precision torque sensor collects the sample torque, and a high-precision rotary encoder measures the torsional deformation.
[0042] Optionally, the static torsion test system can be connected to an electronic device, which can display parameters such as torque, torsion angle, torsion deformation, etc. obtained during the test. For example, a change curve can be drawn based on the change of each parameter, and the electronic device can display the change curve of each parameter.
[0043] Optionally, the transmission device 108 may be a reducer, which may be a cylindrical gear reducer, a worm gear reducer, or a cycloidal pinwheel reducer.
[0044] The transmission device 108 and the torque sensor can be connected via some connecting pieces. For example, a diaphragm coupling 116 and a large synchronous pulley 114 can be connected in sequence between the transmission device 108 and the torque sensor.
[0045] In this embodiment, by setting the transmission device 108 as a planetary cycloid reducer, high speed ratio and high efficiency, compact structure, small size, smooth operation and low noise, reliable use, long life, reasonable design, convenient maintenance, easy disassembly and installation and other effects can be achieved.
[0046] like Figure 3 As shown, the static torsion test system provided in the embodiment of the present application may further include: a support base 104 connected to the torque sensor, used to mount the transmission to be tested. The transmission to be tested provides a supporting force.
[0047] Exemplarily, the first power side of the transmission to be tested may be the engine side of the transmission to be tested; and the second power side of the transmission to be tested may be the motor side of the transmission to be tested.
[0048] In this embodiment, when it is necessary to test the transmission to be tested, the transmission to be tested is installed on the support seat 104, the output end of the driving device 102 is connected to the input shaft on the engine side of the transmission to be tested through the clamp and the transmission device 108, the output end of the driving device 102 is connected to the input shaft on the drive motor side of the transmission to be tested through the clamp and the transmission device 108, and the output end of the transmission to be tested is connected to the support seat 104.
[0049] Considering that in actual use, different torques may be involved for different transmissions to be tested, in order to adapt to more test scenarios, at least two torque sensors with different ranges may be provided to adapt to more usage scenarios.
[0050] In this embodiment, the torque sensor includes a first torque sensor 110 and a second torque sensor 112 , and the first torque sensor 110 and the second torque sensor 112 are connected via a connecting member.
[0051] The measuring range of the first torque sensor 110 is greater than that of the second torque sensor 112 .
[0052] Two torque sensors can be connected via some connectors. Figure 1 In the example shown, the first torque sensor 110 is sequentially connected to the first sleeve 107, the sleeve transition plate 120, the first replacement shaft 127 and the first connecting shaft plate 121, which is connected to the second torque sensor 112. The second torque sensor 112 is sequentially connected to the second connecting shaft plate 122, the second replacement shaft 128 and the support seat 104.
[0053] The first connecting shaft disk 121 is connected to the first replacement shaft 127 via a bearing disk 105 .
[0054] The support seat 104 is connected in sequence to a second shaft sleeve 125 and a universal joint shaft transition plate 126 , and the universal joint shaft transition plate 126 is used to connect to the transmission to be tested.
[0055] Optionally, the cardan shaft transition plate 126 can be rigidly connected to the transmission to be tested to provide a reaction torque.
[0056] like Figure 1 As shown, the support base 104 can be mounted on a base plate 129 .
[0057] Optionally, the sensor bracket may also include a first sensor bracket 103 and a second sensor bracket 113 , the first torque sensor 110 is mounted on the first sensor bracket 103 , and the second torque sensor 112 is mounted on the second sensor bracket 113 .
[0058] One end of the first sensor bracket 103 is used to mount the first torque sensor 110 , and the other end of the first sensor bracket 103 can be mounted on a test bench.
[0059] In order to better meet the measurement requirements of different measurement intervals and improve the safety of the second torque sensor 112, the second torque sensor 112 is detachably installed between the transmission to be tested and the transmission device 108.
[0060] When the first torque sensor 110 with a large range is required, the second torque sensor 112 can be removed from between the transmission to be tested and the transmission device 108. The transmission to be tested and the transmission device 108 can be connected by a flange.
[0061] Optionally, the static torsion testing system may further include a first flange.
[0062] The first end of the second sensor bracket 113 can be used to install the second torque sensor 112 , and the second end of the second sensor bracket 113 can be installed on the slide rail 123 .
[0063] Among them, the second sensor bracket 113 can be slidably installed on the slide rail 123. When the second sensor bracket 113 is in the first position of the slide rail 123, the second torque sensor 112 is connected between the transmission to be tested and the transmission device 108; when the second sensor bracket 113 is in the second position of the slide rail 123, the second torque sensor 112 is disconnected from the transmission to be tested and the transmission device 108, and the transmission to be tested and the transmission device 108 are connected through the first flange.
[0064] like Figure 1 As shown, the second end of the second sensor bracket 113 can be connected to a slider 124, and the slider 124 can be installed on the slide rail 123. The slider 124 can slide on the slide rail 123 to drive the second sensor bracket 113 to slide along the direction of the slide rail 123, thereby driving the second torque sensor 112 to slide.
[0065] The slide rail 123 can be installed on the bearing platform 101 of the bearing test equipment.
[0066] Among them, when the slider 124 is located at the first position of the slide rail 123, the second torque sensor 112 is connected between the transmission to be tested and the transmission device 108; when the slider 124 slides to the second position of the slide rail 123 with the second sensor bracket 113, the slider 124 with the second sensor bracket 113, and the second sensor bracket 113 with the second torque sensor 112 are disconnected from the transmission to be tested and the transmission device 108, and when the second torque sensor 112 is disconnected from the transmission to be tested and the transmission device 108, the transmission to be tested and the transmission device 108 can be connected through the first flange.
[0067] When testing a transmission with two power output ends, both power output ends need to be connected to the test equipment. Figure 3 As shown, the number of the test equipment of the static torsion test system may be two, namely a first test equipment 100 and a second test equipment 200.
[0068] The first test device 100 may be used to connect to a first power side of a transmission to be tested; and the second test device 200 may be used to connect to a second power side of the transmission to be tested.
[0069] like Figure 3 As shown, the first test device 100 can be installed on the first carrying platform 101; the second test device 200 can be installed on the second carrying platform 101. The first carrying platform 101 and the second carrying platform 101 can be installed on the platform 101.
[0070] In one example, the first power side of the transmission to be tested may be an engine side of the transmission to be tested, and the second power side of the transmission to be tested may be a transmission drive motor side.
[0071] The static torsion test system provided in the embodiment of the present application may further include: a PID controller.
[0072] The PID controller can be used to adjust the deflection angle deviation between the first power side of the transmission to be tested and the second power side of the transmission to be tested.
[0073] The PID controller adjusts control parameters of the PID controller based on the first torque data of the torque sensor of the first test device 100 and the second torque data of the torque sensor of the second test device 200 .
[0074] like Figure 4 As shown, the figure shows the control principle of the PID controller. The first output end can represent the output end of the first power side of the transmission to be tested. The second output end can represent the output end of the second power side of the transmission to be tested.
[0075] Exemplarily, the drive device 102 can be controlled to make the transmission to be tested perform the first power side to obtain the first output end torque, which can be represented by a torque value or a deflection angle. The drive device 102 can be controlled to make the transmission to be tested perform the second power side to obtain the second output end torque, which can reverse the first output end. Based on the torque of the first output end and the second output end, the interaction, the gap between the torque and the target torque, the proportional coefficient, integral time constant and differential time constant involved in the PID controller control logic are adjusted to make the torque of the first output end and the second output end close to the target value. The target value can be a preset value. The representation of the torque is different, and the target value also represents a different value. For example, if the torque is represented by a torque value, the target value can also be a preset target torque; for another example, if the torque is represented by a deflection angle, the target value can also be a preset target deflection angle.
[0076] The target value mentioned above may be set based on historical experience.
[0077] In this embodiment, the torque specified in the preset test scheme can be used as the target torque, and an appropriate torque speed can be set. The torque deviation caused by the interference of the two loading routes formed by the first power side and the second power side of the transmission to be tested can be corrected through PID control by a PID controller, thereby achieving a smooth loading test process.
[0078] In one example, a PID controller can implement control based on the following formula:
[0079]
[0080] Where: u(t) represents the output of the controller; e(t) represents the deviation between the target torque and the torque of the transmission to be tested; K P Represents the proportionality coefficient; T I represents the integral time constant; T D represents the differential time constant; t represents the time interval from the start of adjustment to the output of the current control quantity.
[0081] Among them, the proportional coefficient can be directly controlled according to the deviation value. The larger the proportional coefficient, the faster the system response speed, but too large a proportional coefficient may cause system instability; the integral time constant can be used to eliminate steady-state errors. The smaller the integral time constant, the stronger the integral effect, and the more sensitive the system is to the cumulative effect of errors; the differential time constant represents the changing trend of the predicted error, and adjustments can be made in advance to enhance the stability and response speed of the system.
[0082] Optionally, an alarm emergency stop limit value may be preset to prevent the engine route and the motor route transmission gears from dragging each other due to interference, thereby causing a step change in torque and causing damage to the transmission under test. Exemplarily, the alarm emergency stop limit value may be set according to information such as test requirements, peak torque, and destructive torque. When the torque obtained by the torque sensor test reaches the alarm emergency stop limit value, the operation of the drive device 102 may be stopped and an alarm signal may be output.
[0083] In this embodiment, the PID controller can implement the test of the transmission to be tested based on the control of the torque value. Figure 5 As shown, Figure 5 A control schematic diagram for implementing a test on a transmission to be tested based on torque value control is shown.
[0084] When the transmission under test needs to be tested, a movement instruction can be input to the drive device 102, and monitoring data can be obtained during the test. Figure 5 The closed-loop control shown can output encoder frequency-divided pulse output.
[0085] After obtaining the movement instruction, the electronic gear of the servo motor determines the rotation data, combines the deviation obtained by the deviation counter, determines the control data of the position control loop, and reflects the control data of the position control loop to the speed loop of the servo motor, so as to realize the operation of the servo motor based on the control data of the speed loop. During the operation of the servo motor, the torque data of the servo motor is recorded, and the operation data is converted to speed.
[0086] During the operation of the servo motor, the torque data is monitored to see if it exceeds the alarm emergency stop limit. If it exceeds the alarm emergency stop limit, an alarm is output.
[0087] The torque data during the operation of the servo motor is converted serially by an external encoder, and the converted data is also monitored to see if the torque data exceeds the alarm limit. If it exceeds the external encoder, an alarm is output. Speed conversion and unit conversion are performed based on the data converted by the external encoder, and the obtained data is used to determine the speed loop of the servo motor. The data obtained by the serial conversion of the external encoder can also be used to determine the deviation and input it into the deviation counter.
[0088] The static torsion test system provided in the embodiment of the present application may further include: an angle sensor 115 arranged at a position different from the position of the drive device 102, the transmission device 108 and the axis where the torque sensor is located, and the angle sensor 115 is used to detect the deflection angle of the drive device 102, the transmission device 108 and the axis where the torque sensor is located.
[0089] exist Figure 1 In the example shown, the angle sensor 115 is installed below the transmission device 108 shown in the figure, and is used to detect the deflection angle of the drive device 102, the transmission device 108 and the shaft where the torque sensor is located.
[0090] The angle sensor 115 may be a high-precision photoelectric encoder, which may be used to collect the torsion angle.
[0091] In one embodiment, the PID controller may be used to adjust the deflection angle deviation between the first power side of the transmission to be tested and the second power side of the transmission to be tested.
[0092] The PID controller adjusts control parameters of the PID controller based on the first angle data of the angle sensor 115 of the first test device 100 and the second angle data of the angle sensor 115 of the second test device 200 .
[0093] In this embodiment, the PID controller can also implement the test of the transmission to be tested based on the control of the rotation angle. Figure 6 As shown, Figure 6 A control schematic diagram for implementing a test on a transmission to be tested based on the control of the deflection angle is shown.
[0094] When the transmission under test needs to be tested, a movement instruction can be input to the drive device 102, and monitoring data can be obtained during the test. Figure 6 The closed-loop control shown can output encoder frequency-divided pulse output.
[0095] After obtaining the movement instruction, the servo motor determines the control data of the speed loop to realize the operation of the servo motor based on the control data of the speed loop. During the operation of the servo motor, the deflection angle of the servo motor is recorded, and the operation data is converted into speed.
[0096] During the operation of the servo motor, the deflection angle is monitored to see if it exceeds the alarm emergency stop limit. If it exceeds the alarm emergency stop limit, an alarm is output.
[0097] The deflection angle of the servo motor during operation is converted serially by an external encoder, and the converted data is also monitored to see if the deflection angle exceeds the alarm limit. If it exceeds the external encoder, an alarm is output. Speed conversion and unit conversion are performed based on the data converted by the external encoder, and the obtained data is used to determine the speed loop of the servo motor.
[0098] The embodiment of the present application may also provide a static torsion test method, which may include: using the above-mentioned static torsion test system to perform a static torsion test on the transmission to be tested.
[0099] For the contents that can be achieved by this method, please refer to the contents that can be achieved by the above-mentioned static torsion test system, which will not be repeated here.
[0100] The static torsion test system and method provided by the embodiments of the present application can test a hybrid transmission with two power output ends. Specifically, the transmission to be tested can be driven to twist under the action of the driving device and the transmission device. A torque sensor is set between the transmission device and the transmission to be tested. The torque formed by the transmission device and the transmission to be tested can be tested based on the torque sensor, thereby realizing a static torsion test. Furthermore, for a hybrid transmission with power output on both sides, two test devices can be connected to the power output ends on both sides of the hybrid transmission respectively, so as to realize a torque test based on the torque on both sides. The working safety of the hybrid transmission can be improved by testing the hybrid transmission.
[0101] The above description is only an optional embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0102] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
Claims
1. A static torsion test system, characterized in that: include: Test equipment; The test equipment comprises: a driving device for outputting a driving force; a transmission device connected to the driving device, wherein the driving force is used to drive the transmission device to rotate; a torque sensor connected between the transmission to be tested and the transmission device, and used to test the torque of the transmission to be tested; The number of the test devices is at least two, wherein a first test device among the test devices is used to connect to a first power side of the transmission to be tested; and a second test device among the test devices is used to connect to a second power side of the transmission to be tested.
2. The system according to claim 1, characterized in that The torque sensor includes a first torque sensor and a second torque sensor, wherein the first torque sensor is connected to the second torque sensor via a connecting member; and the measuring range of the first torque sensor is greater than that of the second torque sensor.
3. The system according to claim 2, characterized in that The second torque sensor is detachably installed between the transmission to be tested and the transmission device.
4. The system according to claim 3, characterized in that Also includes: First flange; The second torque sensor is mounted on a second sensor bracket, and the second sensor bracket is mounted on the slide rail; Wherein, the second sensor bracket is slidably mounted on the slide rail, and when the second sensor bracket is in the first position of the slide rail, the second torque sensor is connected between the transmission to be tested and the transmission device; when the second sensor bracket is in the second position of the slide rail, the second torque sensor is disconnected from the transmission to be tested and the transmission device, and the transmission to be tested and the transmission device are connected via the first flange.
5. The system according to claim 1, characterized in that Also includes: A PID controller, used to adjust a deflection angle deviation between a first power side of the transmission to be tested and a second power side of the transmission to be tested; The PID controller adjusts a control parameter of the PID controller based on first torque data from the first test equipment torque sensor and second torque data from the second test equipment torque sensor.
6. The system according to claim 1, characterized in that Also includes: An angle sensor is arranged at a position different from the shaft where the driving device, the transmission device and the torque sensor are located, and the angle sensor is used to detect the deflection angle of the shaft where the driving device, the transmission device and the torque sensor are located.
7. The system according to claim 6, characterized in that A PID controller, used to adjust a deflection angle deviation between a first power side of the transmission to be tested and a second power side of the transmission to be tested; The PID controller adjusts a control parameter of the PID controller based on first angle data of the first test equipment angle sensor and second angle data of the second test equipment angle sensor.
8. The system according to any one of claims 1 to 7, characterized in that: Also includes: The support base connected to the torque sensor is used to install the transmission to be tested.
9. The system according to any one of claims 1 to 7, characterized in that: Also includes: a first carrying platform for mounting the first test equipment; A second carrying platform for mounting the second test equipment.
10. A static torsion test method, characterized in that: include: A static torsion test is performed on a transmission to be tested using the static torsion test system described in any one of claims 1 to 9.