New energy dual-motor reducer static torsion test device
By designing a new energy dual-motor reducer torque test device including torque angle sensor, power input component and torque distribution component, the existing device cannot meet the problem that the two input terminals of the dual-motor reducer perform torque input and limit value simulation at the same time, and achieve performance evaluation and accurate measurement under torque loading in different directions, improving the reliability and accuracy of the test.
Patent Information
- Application Number
- CN202510434115.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2025-06-24
AI Technical Summary
The existing reducer torque test device cannot meet the needs of the new energy dual-motor reducer to perform torque input and limit value simulation at both input terminals, especially under torque loading in different directions.
A new energy dual-motor reducer torque test device is designed, including a torque angle sensor, a power input assembly and a torque distribution assembly. The torque angle sensor is installed at the two inputs of the dual motor reducer to be tested. The power input assembly provides power torque, and the torque distribution assembly achieves precise distribution and adjustment of torque through the electromagnetic clutch and the transmission shaft.
The performance evaluation of the two input terminals of the dual motor reducer in the same direction and opposite direction is achieved, and the relationship between torque and angle can be accurately measured, which meets the test needs under complex operating conditions, and improves the reliability of the system and the accuracy of the test.
Smart Images
Figure CN120194931A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of static torsion tests for motor reducers, and particularly to a static torsion test device for a new energy dual-motor reducer to be tested. Background Art
[0002] To comprehensively evaluate the performance of a reducer under static torque conditions, especially the design requirements for its torque reserve coefficient, conducting a static torsion test is a crucial step to ensure that the design meets the established performance expectations.
[0003] The currently adopted static torsion test device for reducers mainly realizes the evaluation by controlling the rotation angle and measuring the dynamic relationship between torque and angle. However, this device only has the function of single-input torque loading, and its sensors are usually configured at the output end of the test bench and connected to the input end of the reducer to be tested through a transmission shaft.
[0004] In view of the fact that the new energy dual-motor reducer has two independent input ends, in order to simulate the complex working conditions in actual vehicle operation, the need to simultaneously input torque to these two input ends and reach the limit value has become particularly urgent. In practical applications, when both driving motors are in the forward driving state, the two input shafts of the reducer will bear torques in the same direction; when one motor acts as a generator for energy recovery and the other motor continues to drive forward, these two input shafts will bear torque inputs in opposite directions. Therefore, higher technical requirements are put forward for the static torsion test device: it must have the ability to simultaneously verify the performance of the two input shafts of the reducer under loading in the same direction and opposite directions. Summary of the Invention
[0005] Embodiments of this application provide a static torsion test device for a new energy dual-motor reducer to solve the defect that the function of single-input torque loading in related technologies cannot meet the static torsion test of the new energy dual-motor reducer.
[0006] Embodiments of this application provide a static torsion test device for a new energy dual-motor reducer, including: a torque-angle sensor, which is installed on the two input ends of the dual-motor reducer to be tested through a connecting member; a power input assembly, which has two output ends, and a torque distribution assembly is connected between the output ends of the power input assembly and the input ends of the dual-motor reducer to be tested. The power input assembly is used to transmit torque to the dual-motor reducer to be tested, and the torque distribution assembly is used to distribute the torque transmitted by the power input assembly.
[0007] By adopting the above technical solution: the double-motor reducer to be tested can receive torque input from the power input component simultaneously, the torque angle sensor can accurately measure the torque angle value at the input end of the double-motor reducer to be tested, and the set torque distribution component allows for flexible adjustment of the torque ratio received by the two input ends of the double-motor reducer to be tested according to test requirements. Therefore, during use, it is possible to control the input torque at the two input ends of the double-motor reducer to be tested within the same time period, measure the torque, and meet the usage requirements of the static torque test of the double-motor reducer to be tested.
[0008] In some embodiments, the torque distribution component includes two sets of distribution units. Each set of the torque distribution units is respectively connected to the output end of the power input component and the input end of the double-motor reducer to be tested. Each set of the distribution units includes: an electromagnetic clutch; a transmission shaft, which is connected to both ends of the electromagnetic clutch, and the transmission shafts at both ends of the electromagnetic clutch are respectively connected to the output end of the power input component and the input end of the double-motor accelerator.
[0009] By adopting the above technical solution: by controlling the current of the electromagnetic clutch to control the torque magnitude, the electromagnetic clutch can always be in a slipping state during the test, ensuring that the two input ends of the double-motor reducer to be tested have the same input torque, and flexibly adjusting the torque distribution ratio between the two sets of distribution units, so that different torque distribution situations can be simulated during the test to evaluate the performance of the double-motor reducer to be tested under different working conditions.
[0010] In some embodiments, the torque distribution component further includes a bench control system, which is connected to the electromagnetic clutch.
[0011] By adopting the above technical solution: through the connection between the bench control system and the electromagnetic clutch, the bench control system can accurately adjust the torque distribution and can monitor and accurately control the state of the electromagnetic clutch in real time.
[0012] In some embodiments, the power input component includes: a driving motor; a bench reduction gearbox, the input end of the bench reduction gearbox is connected to the output end of the driving motor, and the output end of the bench reduction gearbox has two and is correspondingly connected to the torque distribution component.
[0013] By adopting the above technical solution: during use, after the rotation speed of the driving motor passes through the bench reduction gearbox, the same magnitude and direction of rotation speed are output at the two output ends of the bench reduction gearbox.
[0014] In some embodiments, a first coupling is connected between the driving motor and the bench reduction gearbox.
[0015] By adopting the above technical solutions: The first coupling can smoothly transmit the power of the driving motor to the bench reduction gearbox, ensuring the continuous and stable transmission of power.
[0016] In some embodiments, a reversing member is connected to any output end of the bench reduction gearbox, and the reversing member is used to change the torque loading direction of any output end of the bench reduction gearbox.
[0017] By adopting the above technical solutions: According to specific test requirements, the reversing member can change the rotational speed output direction of any output end of the bench reduction gearbox, and thus can output the rotational speed of any output end of the bench reduction gearbox in the same or opposite direction according to the test requirements, flexibly adapting to different test requirements.
[0018] In some embodiments, a second coupling is connected between the reversing member and the bench reduction gearbox.
[0019] By adopting the above technical solutions: The second coupling has the function of transmitting power. The second coupling can ensure the smooth transmission of power from the bench reduction gearbox to the reversing member, avoiding vibrations and impacts caused by direct connection.
[0020] In some embodiments, the bench control system is also connected to the power input assembly.
[0021] By adopting the above technical solutions: The bench control system is also connected to the power input assembly, so that the rotational speed magnitudes of the two output ends of the bench reduction gearbox are not affected by either party. During the test, either party can be suspended. Not only can the static torque test of the double input ends of the double-motor reducer to be measured be carried out, but also the static torque test of the single input end reducer can be carried out.
[0022] In some embodiments, a collection system is connected to the terminal of the torque angle sensor.
[0023] By adopting the above technical solutions: The torque angle sensor can accurately measure the torque and angle changes on the double-motor input shaft. The collection system can convert these torque and angle signals into digital signals and store and analyze them.
[0024] In some embodiments, the output end of the double-motor reducer to be measured is fixedly arranged.
[0025] By adopting the above technical solutions: The fixed arrangement of the output end of the double-motor reducer to be measured enables the double-motor reducer to be measured to be firmly fixed to the ground to ensure the reliability of the test.
[0026] The beneficial effects brought by the technical solutions provided in this application include:
[0027] The embodiment of the present application provides a static torque test device for a new energy dual-motor reducer. The power input component provided can supply power torque to the dual-motor reducer to be tested. Then, through the torque distribution component and the torque angle sensor, the accurate distribution and real-time monitoring of torque are realized. For different input working conditions, the relationship between the torque and the angle of the dual-motor reducer to be tested is accurately measured, meeting complex test requirements, and the torque can be more accurately distributed to the two input ends of the dual-motor reducer to be tested. At the same time, by real-time monitoring and feedback of the torque situation, the system can timely detect and handle abnormal situations, thereby improving the reliability of the system. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0029] Figure 1 It is a schematic diagram of the overall structure provided by the embodiment of the present application;
[0030] Reference Signs:
[0031] 1. Dual-motor reducer to be tested; 10. Flange; 2. Torque angle sensor; 20. Acquisition system; 30. Electromagnetic clutch; 31. Transmission shaft; 32. Bench control system; 4. Driving motor; 5. Bench reduction gearbox; 6. First coupling; 7. Reversing member; 8. Second coupling. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.
[0033] The embodiment of the present application provides a static torque test device for a new energy dual-motor reducer, which can solve the defect that the function of single input torque loading cannot meet the static torque test of the new energy dual-motor reducer.
[0034] See Figure 1As shown in the figure, an embodiment of the present application provides a static torque test device for a new energy dual-motor reducer, including: a torque angle sensor 2 and a power input component. The torque angle sensor 2 is installed on the two input ends of the dual-motor reducer 1 to be tested through a connecting piece. A flange 10 is connected to the output end of the dual-motor reducer 1 to be tested, and the dual-motor reducer 1 to be tested can be conveniently fixed through the flange 10. The torque angle sensor 2 is connected to the two input ends of the dual-motor reducer 1 to be tested; the power input component has two output ends, and a torque distribution component is connected between the output end of the power input component and the input end of the dual-motor reducer 1 to be tested. During use, the power input component is used to transmit torque to the dual-motor reducer 1 to be tested, and the torque distribution component is used to distribute the torque transmitted by the power input component.
[0035] The dual-motor reducer 1 to be tested has two input ends and is equipped with corresponding torque angle sensors 2. Therefore, the dual-motor reducer 1 to be tested can receive torque inputs from the power input component simultaneously. The torque angle sensor 2 can directly measure the torque angle value at the input end of the dual-motor reducer 1 to be tested. The set torque distribution component allows for flexible adjustment of the torque ratio received by the two input ends of the two dual-motor reducers 1 to be tested according to test requirements, which is crucial for simulating torque distribution under different working conditions. Therefore, when the present application is in use, it is possible to control the input torque of the two input ends of the dual-motor reducer 1 to be tested within the same time period, measure the relationship between torque and angle, and comprehensively evaluate the performance of the dual-motor reducer 1 to be tested under various working conditions.
[0036] In the present application, the terminal of the torque angle sensor 2 is connected to a data acquisition system 20. The torque angle sensor 2 can accurately measure the torque and angle changes on the input shaft of the dual-motor reducer 1 to be tested, while the data acquisition system 20 is responsible for converting these torque and angle signals into digital signals and storing and analyzing them. Through high-precision data acquisition, the working state of the rotating shaft can be monitored in real time, providing reliable data support for subsequent fault diagnosis, performance evaluation, and optimization design.
[0037] In this application, the provided torque distribution assembly includes two sets of distribution units. Each set of torque distribution units is respectively connected to the output end of the power input assembly and the input end of the double-motor reducer 1 to be tested. Each set of distribution units includes: an electromagnetic clutch 30 and a transmission shaft 31; the transmission shaft 31 is connected to both ends of the electromagnetic clutch 30, and the transmission shafts 31 at both ends of the electromagnetic clutch 30 are respectively connected to the output end of the power input assembly and the input end of the double-motor reducer 1 to be tested. As a key component for torque distribution, the electromagnetic clutch 30 features fast response and precise control. By controlling the current of the electromagnetic clutch 30, the torque magnitude can be controlled. Therefore, the electromagnetic clutch 30 can always be in a slipping state during the test, ensuring that the two input ends of the double-motor reducer 1 to be tested have the same input torque and flexibly adjusting the torque distribution ratio between the two sets of distribution units. This allows for simulating different torque distribution scenarios during the test to evaluate the performance of the double-motor reducer 1 to be tested under different working conditions. And by including an independent electromagnetic clutch 30 and transmission shaft 31 in each set of distribution units, it means that the two input ends of the double-motor reducer 1 to be tested can receive and transmit independent torques. This design ensures that even if there is a problem at one input end, the other input end can still operate normally, improving the reliability and safety of the test.
[0038] In this application, the provided torque distribution assembly further includes a bench control system 32, and the bench control system 32 is connected to the electromagnetic clutch 30. Through the connection with the electromagnetic clutch 30, the bench control system 32 can precisely adjust the torque distribution, and can monitor and precisely control the state of the electromagnetic clutch 30 in real time. Ensure that the torque received at the input end of the double-motor reducer 1 to be tested meets the test requirements. This precision is crucial for evaluating the performance of the double-motor reducer 1 to be tested and helps improve the accuracy and reliability of the test. Additionally, during the test, the bench control system 32 can monitor the state of the electromagnetic clutch 30 and the torque transmission situation in real time. Once an abnormal situation is detected, such as the torque exceeding the preset range or the electromagnetic clutch 30 malfunctioning, the bench control system 32 can immediately take measures, such as cutting off the power supply or stopping the test, to protect the safety of the test equipment and personnel. This safety design is of great significance for preventing possible accidents during the test.
[0039] During use, first disconnect the electromagnetic clutch 30, then the power input assembly operates at a fixed torque first, and then the working torques of the two electromagnetic clutches 30 are slowly increased synchronously, so that the input torques at the two input ends of the double-motor reducer 1 to be tested increase synchronously. Or by controlling the current of the two electromagnetic clutches 30 to control the torque magnitude, the synchronous increase or individual increase of different torques at the two input ends of the double-motor reducer 1 to be tested is realized, so that the input torques at the two input ends of the double-motor reducer 1 to be tested increase synchronously or individually to the maximum torque value.
[0040] In this application, the power input component includes: a driving motor 4 and a bench reduction gearbox 5; the driving motor 4 can rotate forward or backward to provide different static torque input directions. The input end of the bench reduction gearbox 5 is connected to the output end of the driving motor 4, and two output ends are provided at the output end of the bench reduction gearbox 5 and are correspondingly connected to the torque distribution component.
[0041] During use, after the rotation speed of the driving motor 4 passes through the bench reduction gearbox 5, rotation speeds of the same magnitude and direction are output at the two output ends of the bench reduction gearbox 5. Since the speed ratio of the bench reduction gearbox 5 is relatively large, after the rotation speed of the driving motor 4 is reduced and torque is increased by the bench reduction gearbox 5, the rotation speeds input to the two input ends of the double-motor reducer 1 to be tested can be controlled at 0.1° / s.
[0042] In this application, the bench control system 32 is also connected to the power input component, so that the rotation speed magnitudes at the two output ends of the bench reduction gearbox 5 are not affected by either party. During the test, either party can be suspended. Not only can the static torque test of the two input ends of the double-motor reducer 1 to be tested be carried out, but also the static torque test of the single-input reducer can be carried out.
[0043] In this application, a first coupling 6 is connected between the driving motor 4 and the bench reduction gearbox 5. The first coupling 6 can smoothly transmit the power of the driving motor 4 to the bench reduction gearbox 5, ensuring continuous and stable power transmission. In addition, there may be a slight deviation between the driving motor 4 shaft and the bench reduction gearbox 5 shaft. The design of the first coupling 6 has a certain elasticity and compensation ability, which can absorb and compensate these deviations, ensuring that the two shafts can maintain a relatively stable centering state when transmitting power, and avoiding vibration and noise caused by the deviation.
[0044] In this application, a reversing member 7 is also connected to any one output end of the bench reduction gearbox 5. The reversing member 7 is used to change the torque loading direction of any one output end of the bench reduction gearbox 5. The reversing member 7 can change the rotation speed output direction of any one output end of the bench reduction gearbox 5, and thus can output the rotation speed of any one output end of the bench reduction gearbox 5 in the same direction or the opposite direction according to the test requirements, flexibly adapting to different test requirements. Whether it is the output in the same direction or the opposite direction can be easily achieved through the reversing member 7. This flexibility enables the test personnel to simulate more working conditions, thereby more comprehensively evaluating the performance of the double-motor reducer 1 to be tested. During the test of the double-motor reducer 1 to be tested in this application, the double-motor reducer 1 can perform working conditions of co-directional positive torque, co-directional reverse torque, counter-directional positive torque, and counter-directional reverse torque at the two input ends.
[0045] In this application, a second coupling 8 is connected between the reversing member 7 and the bench reduction gearbox 5. The second coupling 8 has the function of transmitting power. The second coupling 8 can ensure that power is smoothly transmitted from the bench reduction gearbox 5 to the reversing member 7, avoiding vibrations and impacts caused by direct connection. This smooth power transmission helps to protect the components of the transmission system and extend their service life.
[0046] The implementation principle of the embodiment of this application is as follows: By controlling the working states of the drive motor 4 and the reversing member 7, different input working conditions can be simulated. Furthermore, the input torques of the two input ends of the double-motor reducer 1 to be tested are controlled by the drive motor 4 and the reversing member 7, and the relationship between torque and angle is measured by the torque angle sensor 2. During the test, the two electromagnetic clutches 30 need to be disconnected first. A fixed speed is given to the drive motor 4, and by synchronously and slowly increasing the working torque of the electromagnetic clutches 30, the input torques of the two input ends of the double-motor reducer 1 to be tested are increased synchronously. The rotational speeds of the two output ends of the bench reduction gearbox 5 are not affected by either party. During the test, either party can be suspended, and the overall operation is convenient. The test conditions can be flexibly adjusted during the test.
[0047] In the description of this application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to this application. Unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0048] It should be noted that in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, the element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.
[0049] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.
Claims
1. A new energy dual-motor reducer static torque test device, characterized in that: include: A torque angle sensor (2) is installed on two input ends of the dual-motor reducer (1) to be tested through a connecting piece; A power input component is provided with two output ends, a torque distribution component is connected between the output end of the power input component and the input end of the dual-motor reducer (1) to be tested, the power input component is used to transmit torque to the dual-motor reducer (1) to be tested, and the torque distribution component is used to distribute the torque transmitted by the power input component.
2. A new energy dual-motor reducer static torque test device as claimed in claim 1, characterized in that: The torque distribution assembly comprises two groups of distribution units, each group of the torque distribution units is respectively connected to the output end of the power input assembly and the input end of the dual-motor reducer (1) to be tested, and each group of the distribution units comprises: Electromagnetic clutch (30); A transmission shaft (31) is connected to both ends of the electromagnetic clutch (30), and the transmission shafts (31) at both ends of the electromagnetic clutch (30) are respectively connected to the output end of the power input component and the input end of the dual-motor reducer (1) to be tested.
3. A new energy dual-motor reducer static torque test device as claimed in claim 2, characterized in that: The torque distribution assembly also includes a platform control system (32) connected to the electromagnetic clutch (30).
4. A new energy dual-motor reducer static torque test device as claimed in claim 1, characterized in that: The power input assembly comprises: A drive motor (4); A gantry reduction box (5), wherein the input end of the gantry reduction box (5) is connected to the output end of the drive motor (4), and the gantry reduction box (5) is provided with two output ends, which are correspondingly connected to the torque distribution assembly.
5. A new energy dual-motor reducer static torque test device as claimed in claim 4, characterized in that: A first coupling (6) is connected between the driving motor (4) and the platform reduction box (5).
6. A new energy dual-motor reducer static torque test device as claimed in claim 4, characterized in that: A reversing member (7) is connected to any output end of the gantry reduction box (5), and the reversing member (7) is used to change the torque loading direction of any output end of the gantry reduction box (5).
7. A new energy dual-motor reducer static torque test device as claimed in claim 6, characterized in that: A second coupling (8) is connected between the reversing member (7) and the gantry reduction box (5).
8. A new energy dual-motor reducer static torque test device as claimed in claim 3, characterized in that: The platform control system (32) is also connected to the power input assembly.
9. A new energy dual-motor reducer static torque test device as claimed in claim 1, characterized in that: The terminal of the torque angle sensor (2) is connected to a collection system (20).
10. A new energy dual-motor reducer static torque test device as claimed in claim 1, characterized in that: The output end of the dual-motor reducer (1) to be tested is fixedly arranged.