Electric rotary speed reducer rack test system and control method of upper computer

Abstract

The invention discloses an electric rotary speed reducer rack testing system and a control method of an upper computer in the technical field of motor testing, and aims to solve the technical problems that a testing system of an electric rotary speed reducer highly depends on manpower and cannot meet various models. The method comprises the steps that an upper computer controls a loading electric rotation speed reducer to apply simulation torque to a rotation support through a motor controller, participation of manual activities is reduced, and the automation degree of the testing process is increased; the to-be-tested electric rotary speed reducer is subjected to performance test in a mode of direct torque transmission connection with the rotary support, and the mode of direct torque transmission connection with the rotary support can adapt to physical structures of different types of to-be-tested electric rotary speed reducers; the upper computer controls the to-be-tested electric rotary speed reducer to be tested through the motor controller, and corresponding test parameters can be imported into the upper computer according to different types of the to-be-tested electric rotary speed reducer. The bench test system is highly automatically adapted to different types of electric rotary speed reducers to be tested. Software support is provided for a control method corresponding to the upper computer.

Description

Technical Field

[0001] This invention relates to an electric rotary reducer bench testing system and a control method for a host computer, belonging to the field of motor testing technology. Background Technology

[0002] With the increasing demand for energy conservation and emission reduction in the construction machinery market, electric rotary reducers are gradually being applied in response to this trend towards new energy sources.

[0003] An electric slewing gearbox is an electromechanical integrated device that combines a motor drive, a reduction mechanism, and a slewing bearing. It is primarily used to achieve precise rotary motion at high torque and low speed. As a relatively new technological solution to replace traditional electric drive systems, the electric slewing gearbox lacks readily available testing methods, relying heavily on manual on-site testing. However, electric slewing gearboxes operate under unique conditions, including frequent starts and stops, large inertial loads, and instantaneous impacts. Sufficient simulated operating condition tests are necessary to verify the performance of electric slewing gearboxes and ensure their proper functioning after delivery. Furthermore, the variety of electric slewing gearbox models and their diverse testing requirements further complicate matters.

[0004] Therefore, existing testing systems for electric rotary reducers are highly dependent on manual labor and cannot meet the testing needs of various models of electric rotary reducers. Summary of the Invention

[0005] The purpose of this application is to overcome the shortcomings of the prior art and provide a highly automated electric rotary reducer bench test system and a control method for the host computer.

[0006] To achieve the above objectives, this application employs the following technical solution: In a first aspect, this application provides a bench testing system for an electric rotary reducer, comprising, Slewing bearing, used for direct torque transmission connection with the electric slewing reducer under test; An electric slewing reducer is loaded and connected to the slewing support for torque transmission. The electric slewing reducer is used to load test torque onto the slewing support. The motor controller is electrically connected to both the electric rotary reducer under test and the loaded electric rotary reducer. The host computer is connected to the motor controller via a signal connection. The motor controller controls the electric rotary reducer under test and the loaded electric rotary reducer according to the instructions from the host computer.

[0007] In some embodiments of the first aspect of this application, a data acquisition device is also included; the internal structure of the electric rotary reducer under test is provided with an oil temperature sensor and an oil pressure sensor, and the outer casing of the electric rotary reducer under test is provided with an outer casing temperature sensor. The outer casing temperature sensor, the oil temperature sensor, and the oil pressure sensor are respectively connected to the data acquisition device via signal connection, and the data acquisition device is connected to the host computer via signal connection.

[0008] In some embodiments of the first aspect of this application, an inertia flywheel disk is also included, the inertia flywheel disk being used for torque transmission connection with the electric rotary reducer under test.

[0009] In some embodiments of the first aspect of this application, a power simulator is also included, which is electrically connected to the motor controller and electrically connected to the host computer.

[0010] In some embodiments of the first aspect of this application, a CAN bus is also included, wherein the power simulator, the host computer, the data acquisition device and the motor controller are respectively connected to the CAN bus.

[0011] In some embodiments of the first aspect of this application, a vehicle controller is also included, wherein the host computer is connected to the CAN bus through the vehicle controller.

[0012] In some embodiments of the first aspect of this application, the inner ring of the slewing support is provided with gear teeth, and the first output shaft of the electric slewing reducer under test and the second output shaft of the loaded electric slewing reducer respectively mesh with the gear teeth.

[0013] Secondly, this application also provides a control method for a host computer, based on the electric rotary reducer bench testing system described in any embodiment of the first aspect, wherein the method is executed by the host computer and includes, The motor controller or power simulator applies a safety verification current to the electric rotary reducer under test. The oil temperature, oil pressure, and housing temperature of the electric rotary reducer under test are obtained. In response to the oil temperature, oil pressure, and housing temperature meeting the test start-up threshold, the test mode selection page is displayed visually. The selected test mode is obtained, and the motor controller is controlled to apply a loading current to the loaded electric rotary reducer according to the selected test mode, while the motor controller is controlled to apply a test current to the electric rotary reducer under test. Record the test operation data of the electric rotary reducer under test.

[0014] In some embodiments of the second aspect of this application, during the recording of test operation data of the electric rotary reducer under test, In response to the test run data reaching a dangerous threshold, the motor controller is powered off.

[0015] Thirdly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the host computer control method described in any embodiment of the first aspect.

[0016] Fourthly, this application also provides a computer program product, including a computer program / instructions, characterized in that, when the computer program / instructions are executed by a processor, they implement the steps of the host computer control method described in any embodiment of the first aspect.

[0017] Compared with the prior art, the beneficial effects achieved by this application are as follows: The electric slewing reducer bench testing system and host computer control method provided in this application allow the host computer to control the electric slewing reducer to apply simulated torque to the slewing support via a motor controller, reducing manual intervention and increasing the automation of the testing process. The electric slewing reducer under test is tested through a direct torque transmission connection with the slewing support, a method adaptable to the physical structures of different models of electric slewing reducers. The host computer controls the testing of the electric slewing reducer under test via the motor controller, and corresponding test parameters can be imported into the host computer for different models. This achieves a highly automated bench testing system adapted to different models of electric slewing reducers under test. The corresponding host computer control method supports the testing of the electric slewing reducer bench testing system, providing corresponding beneficial effects. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the electric rotary reducer bench test system provided in this embodiment; Figure 2 This is a flowchart of the electric rotary table test process; Figure 3 It is a curve diagram showing the specific setting scheme of the cyclical stage of the motor speed change over time; Figure 4 This is a schematic diagram of the structure of the electric rotary reducer bench test system provided in this embodiment, in which the rotary support is connected to the electric rotary reducer under test and the loaded electric rotary reducer for torque transmission. Figure 5 This is a flowchart of the steps of the host computer control method provided in this embodiment; Figure 6This is a schematic block diagram of the computer device provided in this embodiment; In the picture: 1. Power supply simulator; 2. Motor controller; 3. Electric rotary reducer under test; 4. Loaded electric rotary reducer; 5. Slewing support; 6. Host computer; 7. Vehicle controller; 8. Data acquisition equipment; 9. CAN bus; 3.1 Rotary motor; 3.2 Rotary reducer; 3.3 First output shaft; 4.1 Second output shaft. Detailed Implementation

[0020] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments and specific features in the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations thereof. In the absence of conflict, the embodiments and technical features in the embodiments can be combined with each other.

[0021] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship. Example 1

[0022] This embodiment provides an electric rotary reducer bench testing system to solve the problem that existing electric rotary reducer bench testing is highly dependent on manual labor and cannot meet the testing needs of various types of electric rotary reducers.

[0023] refer to Figure 1 The electric rotary reducer bench testing system provided in this embodiment includes, The slewing support 5 is used for direct torque transmission connection with the electric slewing reducer 3 under test; The electric rotary reducer 4 is connected to the rotary support 5 for torque transmission. The electric rotary reducer 4 is used to apply test torque to the rotary support 5. The motor controller 2 is electrically connected to the electric rotary reducer 3 under test and the electric rotary reducer 4 under load, respectively; The host computer 6 is connected to the motor controller 2 via signal. The motor controller 2 controls the electric rotary reducer 3 under test and the electric rotary reducer 4 under load according to the instructions from the host computer 6.

[0024] The slewing support 5 is designed to be compatible with the turntable of the mechanical platform of the electric slewing reducer 3 under test, so as to reduce the gap between the test process and the actual working conditions.

[0025] The electro-slewing reducer 3 under test is mounted on the test bench system and is connected to the slewing support 5 for torque transmission. Those skilled in the art formulate test parameters such as test range, simulated load, test actions, and test procedures based on the signals from the electro-slewing reducer 3 under test. These test parameters are input through the host computer 6, which compiles the corresponding control instructions into motor control instructions and sends them to the motor controller 2. The motor controller 2 controls the input current of both the loaded electro-slewing reducer 4 and the electro-slewing reducer 3 under test to control their speed and torque.

[0026] The motor controller 2 controls the loading electric rotary reducer 4 to apply a reverse simulated torque under simulated real working conditions to the rotary support 5. The motor controller 2 controls the electric rotary reducer 3 under test to drive the rotary support 5 to simulate real rotary motion. During the simulated rotary process, the test operation data of the electric rotary reducer 3 under test are collected, such as the rotary speed and angle of the rotary support 5, and the changes in internal and external temperature and pressure of the electric rotary reducer 3 under test.

[0027] The electric rotary reducer bench testing system provided in this embodiment uses a host computer 6 to control the electric rotary reducer 4 to apply simulated torque to the rotary support 5 via a motor controller 2. This reduces manual intervention and increases the automation of the testing process. The electric rotary reducer 3 under test is tested by directly transmitting torque through the rotary support 5. This direct torque transmission connection can accommodate the physical structures of different models of electric rotary reducers 3 under test. The host computer 6 controls the electric rotary reducer 3 under test via the motor controller 2, and corresponding test parameters can be imported into the host computer 6 for different models. This achieves a highly automated bench testing system that adapts to different models of electric rotary reducers 3 under test. Example 2

[0028] This embodiment provides a test bench system for an electric rotary reducer. This embodiment is an optimization based on Embodiment 1 to improve the technical effect and refine the technical solution. For details not described in this embodiment, please refer to Embodiment 1.

[0029] As one embodiment, reference Figure 1 It also includes a data acquisition device 8; the electric rotary reducer 3 under test is equipped with an oil temperature sensor and an oil pressure sensor inside, and the outer shell of the electric rotary reducer 3 under test is equipped with an outer shell temperature sensor. The outer shell temperature sensor, oil temperature sensor and oil pressure sensor are respectively connected to the data acquisition device 8 by signal, and the data acquisition device 8 is connected to the host computer 6 by signal.

[0030] In one embodiment, the speed test bench system includes an inertia flywheel, which is used to transmit torque to the rotary support 5. After the inertia flywheel is connected to the rotary support 5, it can accurately reproduce the inertial characteristics of the upper mechanism operating under load via the rotary table in actual vehicle operation scenarios, thereby more effectively verifying the reliability performance of the electric rotary reducer 3 under typical working conditions. Specifically, the inertia flywheel can be connected to the rotary support 5 together with the loaded electric rotary reducer 4 to simulate the reverse torque and inertia generated by the vehicle body components on the rotary table. If the loaded electric rotary reducer 4 is stopped or removed, and only the inertia flywheel is connected to the rotary support 5, the inertia generated by the vehicle body components on the rotary table can be simulated independently. It is worth noting that the inertia flywheel generally has an adjustable inertia function, so the simulated inertia of the inertia flywheel can be adjusted for the test parameters of different models of the electric rotary reducer 3 under test.

[0031] As one embodiment, in order to simulate more realistically, the simulated rotary table can be directly connected to the torque transmission of the electric rotary reducer 3 under test.

[0032] As one embodiment, reference Figure 1 The machine tool testing system provided in this embodiment also includes a power supply simulator 1, which is electrically connected to the motor controller 2 and electrically connected to the host computer 6. Power supply simulation testing is also part of examining the performance and adaptability of the electric rotary reducer 3 under test. Therefore, the power supply simulator 1 is electrically connected to the host computer 6, allowing those skilled in the art to control the power supply simulator 1 to simulate the current, voltage, and their changing characteristics during the testing process via the host computer 6. For example, at the beginning of the testing process, those skilled in the art can control the input voltage of the electric rotary reducer 3 under test to a low voltage via the host computer 6. Under the influence of the low voltage, they can check whether the various indicators of the electric rotary reducer 3 under test are normal, and make a preliminary judgment on the safety of the electric rotary reducer 3 under test before formally testing its performance.

[0033] Power simulator 1 is responsible for meeting the high and low voltage power supply requirements of the system under all operating conditions. Power simulator 1 outputs DC power, and motor controller 2 converts the DC power into AC power that the motor can use.

[0034] As one embodiment, reference Figure 1 The power simulator 1 is electrically connected to the motor controller 2, and the motor controller 2 is electrically connected to the electric rotary reducer 3 under test. This connection method allows the motor controller 2 to fine-tune the current, voltage and their changing characteristics during the simulation test based on the simulated current and voltage output by the power simulator 1. It also allows for safe isolation between the electric rotary reducer 3 under test and the loaded electric rotary reducer 4.

[0035] As one embodiment, reference Figure 1 The test bench system provided in this embodiment also includes a CAN bus 9, with the power simulator 1, host computer 6, data acquisition device 8, and motor controller 2 connected to the CAN bus 9. The connection setup between the CAN bus 9 and each component greatly reduces the difficulty of setting up the test system network and improves the reliability of the network.

[0036] In one embodiment, the bench testing system also includes a vehicle controller 7, and the host computer 6 is connected to the CAN bus 9 through the vehicle controller 7. After receiving the signal, the vehicle controller 7 sets high and low temperature and high and low pressure protection strategies to protect the internal mechanical structure of the reducer.

[0037] In one embodiment, the inner ring of the slewing support 5 is provided with gear teeth, and the first output shaft 3.3 of the electric slewing reducer 3 under test and the second output shaft 4.1 of the loaded electric slewing reducer 4 respectively mesh with the gear teeth.

[0038] Among them, the rotary reducer under test 3 is divided into a rotary motor 3.1, a rotary reducer 3.2 rotatably connected to the rotary motor 3.1, and a first output shaft that is driven by the rotary reducer 3.2. Example 3

[0039] Figure 5 and Figure 2 This is a flowchart illustrating a host computer control method according to Embodiment 1 of the present invention. This flowchart merely shows the logical sequence of the method described in this embodiment. Provided there are no conflicts, different methods may be used in other possible embodiments of the present invention. Figure 1 Complete the steps shown or described in the order indicated.

[0040] The host computer control method provided in this embodiment can be applied to the host computer 6 in Embodiment 1 or 2. Those skilled in the art can formulate a control method for the motor controller 2 and power simulator 1 that relies on instructions from the host computer 6, based on the host computer control method provided in this embodiment, for use in conjunction with the host computer control method provided in this embodiment. See also Figure 1 The method implemented in this way specifically includes the following steps: The motor controller 2 or the power simulator 1 applies a safety verification current to the electric rotary reducer 3 under test. This can be achieved by sending a command to the power simulator 1 to control it to output a 24V low-voltage current, or by sending a command to the motor controller 2 to reduce the current output by the power simulator 1 to 24V.

[0041] The oil temperature, oil pressure, and housing temperature of the electric rotary reducer 3 under test are acquired. In response to the oil temperature, oil pressure, and housing temperature meeting the test start-up threshold, the test mode selection page is displayed visually. The oil temperature, oil pressure, and housing temperature of the electric rotary reducer 3 under test can be acquired through CAN bus 9 to comprehensively check the status of the test system, confirm that there are no fault alarms and that the temperature and pressure parameters are normal, and ensure that all conditions meet the test start-up requirements. The selected test mode is obtained, and the motor controller 2 is controlled to apply the loading current to the loading electric rotary reducer 4 according to the selected test mode. At the same time, the motor controller 2 is controlled to apply the test current to the electric rotary reducer 3 under test. Different test modes result in different current values, voltages and variation characteristics of the current applied to the loading electric rotary reducer 4 and the electric rotary reducer 3 under test. The test current applied to different models of electric rotary reducers 3 under test is also different.

[0042] Record the test operation data of the electric rotary reducer 3 under test. This test operation data is not only the basis for evaluating the performance of the electric rotary reducer 3 under test during the test, but also the basis for ensuring test safety.

[0043] As one embodiment, as mentioned above, the test operation data of the electric rotary reducer 3 under test is recorded. During the recording period, In response to the test run data reaching a dangerous threshold, the motor controller 2 is powered off.

[0044] As one embodiment, the test modes include performance test mode and reliability test mode. If the selected test mode is reliability test mode, the instructions sent by the host computer 6 to the motor controller 2 are mainly to control the target voltage rise value, voltage rise time, and rise rate of the electric rotary reducer 3 under test. The internal oil temperature and pressure, as well as the shell temperature of the electric rotary reducer 3 under high voltage conditions, are collected through the data acquisition device 8 and CAN bus 9. Then, the loaded electric rotary reducer 4 is replaced with an inertia flywheel disk, and another reliability test mode is performed. During the reliability test, the threshold values ​​of key monitoring signals can be precisely set through the software of the host computer 6, covering the upper and lower limits of core parameters such as the shell temperature, brake disc pressure, and temperature of the electric rotary reducer 3 under test. Once the monitoring data exceeds the preset range, the system will trigger an automatic protection mechanism and immediately terminate the test process. At the same time, the software of the host computer 6 supports flexible configuration of test conditions, and can set in detail the requested speed, upper limit torque, slewing support angle, cycle stage duration, and other parameters of the rotary motor 3.1 to accurately simulate the actual operating conditions. The specific setting scheme for the cycle stage of speed changing with time is as follows. Figure 3As shown. Operators only need to issue a start command on the visual interface of the host computer 6, relying on the motor controller 2 to interpret the commands from the host computer 6. Throughout the test, the system will continuously monitor various parameters. If any abnormal situation occurs that does not meet the test conditions, the test will be automatically stopped immediately, and a fault indicator light will flash on the host computer 6 interface to promptly alert the test personnel for intervention, ensuring the safety of the test process and the validity of the data. When the test is paused or stopped, the test personnel can exit the reliability cycle test by issuing a stop command on the host computer interface.

[0045] If the selected test mode is performance test mode, the instructions sent from the host computer 6 to the motor controller 2 include not only the target voltage rise values ​​for the tested electric rotary reducer 3 and the loaded electric rotary reducer 4, but also the voltage rise time and the rise rate for each time period. During the voltage rise process, the test operation data of the tested electric rotary reducer 3 is recorded. This data includes not only the oil pressure and temperature of the tested electric rotary reducer 3 itself, but also the temperature of the slewing support 5. Ensure that all states are normal when the specified high voltage is reached. After the voltage of the input current of the tested electric rotary reducer 3 and the loaded electric rotary reducer 4 reaches the target value, the instructions sent from the host computer 6 to the motor controller 2 should also include the rate of change of the speed of the tested electric rotary reducer 3 and the rate of change of the torque of the loaded electric rotary reducer 4. This instruction controls both motors through the control of the output current by the motor controller 2. Following this operational logic, this test procedure can achieve tests such as load break-in, transmission efficiency, temperature rise, vibration, and noise. After the test, the speed and torque were set to 0 through the host computer software, and the host computer 6 sent a command to the motor controller 2 to control the output current to 0.

[0046] When the test is paused or stopped, the host computer 6 confirms, based on the data collected by the data acquisition device 8, that the rotary motor 3.1 and the rotary support 5 are completely stationary. Then, the host computer 6 controls the power simulator 1 to precisely cut off the high-voltage power supply to the motor controller 2. After the host computer 6 confirms in real-time that the high-voltage power supply is completely disconnected, it disconnects the low-voltage power supply to the entire test bench. After the above operations are completed, the host computer 6 will automatically complete the comprehensive recording and storage of the test data, thus officially concluding the entire test process.

[0047] When changing the test model of the E-rotary reducer 3 under test, the CAN bus communication protocol of the motor controller, as well as the core parameters such as rated power, speed, and torque of the motor, are pre-programmed for different models of the E-rotary reducer 3. The completed program is then flashed into the host computer 6. The tester only needs to conveniently select the parameter configuration corresponding to the current model of the E-rotary reducer 3 under test through the software of the host computer 6. The host computer 6 can then realize high-precision, stable, and reliable automatic control of the E-rotary reducer 3 under test according to the preset program, effectively improving the convenience of equipment switching and the accuracy of control. Example 4

[0048] This embodiment provides a computer device, including a processor and a memory connected to the processor. The memory stores a computer program, and when the computer program is executed by the processor, it performs the steps of the host computer control method provided in Embodiment 1 or 2.

[0049] The computer device may be a server or an electronic terminal, as one embodiment, see reference. Figure 6 The computer device includes a processor, memory, input / output (I / O) interfaces, and a communication interface. The processor, memory, and I / O interfaces are connected via a system bus, and the communication interface is also connected to the system bus via the I / O interfaces. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The database stores data acquired and generated in the control method of the host computer. The I / O interfaces are used for exchanging information between the processor and external devices. The communication interface is used for communication with external terminals via a network connection. When the computer program is executed by the processor, it implements the host computer control method provided in Embodiment 1 or 2.

[0050] Those skilled in the art will understand that Figure 6 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0051] The computer device provided in this embodiment has the same technical effects as that in Embodiment 1 or 2, and will not be described again here. Example 5

[0052] This embodiment provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the host computer control method provided in Embodiment 1 or Embodiment 2.

[0053] The computer-readable storage medium provided in this embodiment has the same technical effects as that in Embodiment 1 or 2, and will not be described again here. Example 6

[0054] This embodiment provides a computer program product on which a computer program is stored. When executed by a processor, this program implements the steps of the host computer control method provided in Embodiment 1 or Embodiment 2. The computer program product provided in this embodiment can be transmitted, distributed, and downloaded via the Internet in the form of signals.

[0055] The computer program product provided in this embodiment has the same technical effects as that in Embodiment 1 or 2, and will not be described again here.

[0056] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0057] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0058] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0059] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0060] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0061] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0062] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A test bench system for an electric rotary reducer, characterized in that, include, The slewing support (5) is used for direct torque transmission connection with the electric slewing reducer (3) under test; An electric rotary reducer (4) is loaded and connected to the rotary support (5) for torque transmission. The electric rotary reducer (4) is used to load test torque onto the rotary support (5). The motor controller (2) is electrically connected to the electric rotary reducer under test (3) and the loaded electric rotary reducer (4), respectively; The host computer (6) is connected to the motor controller (2) by signal. The motor controller (2) controls the electric rotary reducer under test (3) and the loaded electric rotary reducer (4) according to the instructions from the host computer (6).

2. The electric rotary reducer bench testing system according to claim 1, characterized in that, It also includes a data acquisition device (8); the inside of the electric rotary reducer (3) under test is equipped with an oil temperature sensor and an oil pressure sensor, and the outer shell of the electric rotary reducer (3) under test is equipped with an outer shell temperature sensor. The outer shell temperature sensor, the oil temperature sensor and the oil pressure sensor are respectively connected to the data acquisition device (8) and the data acquisition device (8) is connected to the host computer (6).

3. The electric rotary reducer bench testing system according to claim 1, characterized in that, It also includes an inertia flywheel, which is used to transmit torque to the electric rotary reducer (3) under test.

4. The electric rotary reducer bench testing system according to claim 1, characterized in that, It also includes a power simulator (1), which is electrically connected to the motor controller (2) and electrically connected to the host computer (6).

5. The electric rotary reducer bench testing system according to claim 4, characterized in that, It also includes a CAN bus (9), and the power simulator (1), the host computer (6), the data acquisition device (8) and the motor controller (2) are respectively connected to the CAN bus (9).

6. The electric rotary reducer bench testing system according to claim 5, characterized in that, It also includes a vehicle controller (7), and the host computer (6) is connected to the CAN bus (9) through the vehicle controller (7).

7. The electric rotary reducer bench testing system according to claim 1, characterized in that, The inner ring of the slewing support (5) is provided with gear teeth, and the first output shaft (3.3) of the electric slewing reducer (3) under test and the second output shaft (4.1) of the loaded electric slewing reducer (4) respectively mesh with the gear teeth.

8. A control method for a host computer, characterized in that, Based on the electric rotary reducer bench test system according to any one of claims 1 to 7, the method is executed by the host computer (6) and includes, The control motor controller (2) or power simulator (1) applies a safety check current to the electric rotary reducer (3) under test; The oil temperature, oil pressure and housing temperature of the electric rotary reducer (3) under test are obtained. In response to the oil temperature, oil pressure and housing temperature meeting the test start requirement threshold, the test mode selection page is displayed visually. The selected test mode is obtained, and the motor controller (2) is controlled to apply the loading current to the loaded electric rotary reducer (4) according to the selected test mode, and at the same time, the motor controller (2) is controlled to apply the test current to the electric rotary reducer (3) under test; Record the test operation data of the electric rotary reducer (3) under test.

9. The control method for the host computer according to claim 8, characterized in that, During the recording of the test operation data of the electric rotary reducer (3) under test, In response to the test run data reaching a dangerous threshold, the motor controller (2) is powered off.

10. A computer program product comprising a computer program / instructions, characterized in that, When the computer program / instructions are executed by the processor, they implement the steps of the control method of the host computer as described in any one of claims 8 or 9.

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