Gearbox testing device

Abstract

The application discloses a gearbox testing device and belongs to the technical field of testing. The gearbox testing device comprises a clamping fixing frame, an adapter assembly, a driving motor and a testing assembly. The adapter assembly comprises a support frame and a connecting mechanism. The support frame is arranged at intervals relative to the clamping fixing frame. The connecting mechanism is arranged on the support frame and is used for connecting an input shaft. The driving motor is connected with the connecting mechanism and is used for providing power to the connecting mechanism. The testing assembly comprises a first gear shifting mechanism, a second gear shifting mechanism and an oil pressure detection mechanism. The oil pressure detection mechanism is used for detecting the oil pressure of an internal hydraulic system of the gearbox. In the case that the gearbox is a manual gearbox, the first gear shifting mechanism is connected with a clutch electromagnetic valve of the gearbox and is used for controlling the on-off of the clutch electromagnetic valve. In the case that the gearbox is an automatic gearbox, the second gear shifting mechanism is connected with the driving motor to control the rotating speed of the driving motor. The gearbox testing device can directly test the function of the repaired gearbox in a non-mounted state.

Description

Technical Field

[0001] This application belongs to the field of testing technology, specifically relating to a gearbox testing device. Background Technology

[0002] In related technologies, after a gearbox malfunctions, it needs to be disassembled and repaired. After the repair is completed, it is installed in the vehicle for testing. If the test results are unsatisfactory, the disassembly, repair, and installation process needs to be repeated until the gearbox is repaired successfully.

[0003] This repair method requires multiple disassembly and reassembly processes, resulting in a significant waste of manpower, material resources, and financial resources, and also leads to problems such as high repair costs and low repair efficiency. Utility Model Content

[0004] The purpose of this application is to provide a transmission testing device that can solve the problems of high rework costs and low maintenance efficiency in transmission vehicle testing in related technologies.

[0005] This application proposes a gearbox testing device. The gearbox has an input shaft and includes: a clamping frame on which the gearbox is mounted; a transfer assembly including a support frame and a connecting mechanism, the support frame being spaced apart from the clamping frame, and the connecting mechanism being disposed on the support frame for connecting the input shaft; a drive motor connected to the connecting mechanism for providing power to the connecting mechanism; and a testing assembly including a first shifting mechanism, a second shifting mechanism, and an oil pressure detection mechanism. The oil pressure detection mechanism is used to detect the oil pressure of the internal hydraulic system of the gearbox. When the gearbox is a manual gearbox, the first shifting mechanism is connected to the clutch solenoid valve of the gearbox for controlling the on / off state of the clutch solenoid valve. When the gearbox is an automatic gearbox, the second shifting mechanism is connected to the drive motor to control the speed of the drive motor.

[0006] This transmission testing device can perform functional tests on the repaired transmission directly without it being installed in the vehicle, avoiding the cumbersome process of multiple disassembly and reassembly tests. This effectively improves repair efficiency, reduces rework costs, and shortens the repair cycle. At the same time, it can also perform compatibility tests on two different types of transmissions, manual and automatic, without requiring structural modifications to the overall device. This not only significantly improves testing efficiency but also reduces cost.

[0007] In some technical solutions, the test component may optionally include a console; wherein the first shift mechanism and the second shift mechanism are disposed on the console.

[0008] In practical applications, the first and second gear shifting mechanisms are integrated on the control console. On the one hand, this achieves a centralized layout of the gear shifting mechanisms, avoiding their dispersed installation and thus greatly optimizing the overall structure of the test components, making the system more compact. On the other hand, it provides operators with a unified and centralized control point, allowing them to complete all gear shifting operations without moving between different locations, thereby improving the convenience of operation and the efficiency of human-computer interaction.

[0009] In some technical solutions, the second gear shifting mechanism may optionally include: a gear shift handle, disposed on the control panel; a gear position detection unit, connected to the gear shift handle, for detecting the gear position status of the gear shift handle; and a frequency converter, connected to the gear position detection unit and the drive motor, for controlling the drive motor to operate at the corresponding speed according to the gear position status detected by the gear position detection unit.

[0010] In the above technical solution, the gear shift lever converts the operator's physical gear shifting action into a displacement signal, the gear position detection unit converts the displacement signal into a gear position signal, and the frequency converter adjusts the speed of the drive motor according to the gear position signal, thereby triggering the automatic gear shift of the gearbox.

[0011] In some technical solutions, optionally, the first shifting mechanism includes: a shift knob, disposed on the control panel, the shift knob being connected to a clutch solenoid valve for controlling the on / off state of the clutch solenoid valve.

[0012] In practical applications, the rotation of the gear shift knob is converted into an on / off control signal for the clutch solenoid valve, thereby realizing the gear shifting operation.

[0013] In some technical solutions, the connecting mechanism may optionally include an adapter shaft and a bearing; the bearing is rotatably mounted on a support frame and sleeved on the adapter shaft; one end of the adapter shaft is connected to the input shaft, and the other end of the adapter shaft is connected to the drive motor.

[0014] In the above technical solution, the adapter shaft can be supported and limited by bearings, thereby reducing the shaking of the adapter shaft, realizing stable transmission between the drive motor and the gearbox, and avoiding damage to the internal structure of the gearbox.

[0015] In some technical solutions, the gearbox testing device may optionally include a transmission assembly disposed between the other end of the adapter shaft and the drive motor.

[0016] The transmission connection is achieved through a transmission component, which makes the connection between the drive motor and the adapter shaft more flexible. In actual installation, there is no need for complex customized modifications to the drive motor and adapter shaft, thereby reducing the difficulty and cost of installation and facilitating subsequent maintenance and replacement, thus improving the maintainability of the device. On the other hand, during power transmission, damage to the adapter shaft and other components of the gearbox can be reduced, extending the service life of the device.

[0017] In some technical solutions, the transmission assembly optionally includes: two pulleys, respectively located at the other end of the adapter shaft and the output shaft of the drive motor; and a synchronous belt connecting the two pulleys.

[0018] Synchronous belts have a relatively simple structure, making installation and disassembly convenient. Routine maintenance only requires periodic checks of belt tension and wear, with replacement as necessary. Furthermore, synchronous belts are relatively inexpensive, reducing maintenance and operating costs compared to some more complex transmission methods.

[0019] In some technical solutions, the transmission assembly may optionally include a tensioning mechanism, which is coupled to the synchronous belt to adjust the tension or slack of the synchronous belt.

[0020] This design ensures that the power output from the drive motor is stably and accurately transmitted to the adapter shaft, providing a reliable power input for gearbox testing and improving the accuracy of test results.

[0021] In some technical solutions, optionally, the support frame has a receiving groove on the side facing the clamping frame, and the input shaft passes through the receiving groove and connects with the connecting mechanism.

[0022] This ensures that the gearbox remains in the correct position during testing and does not shift due to external forces, thus improving the accuracy and stability of the test.

[0023] In some technical solutions, the clamping and fixing frame optionally includes: at least two uprights arranged at intervals; a crossbeam disposed between the at least two uprights; and a gearbox mounted on the crossbeam.

[0024] In practical applications, the clamping and fixing frame can effectively withstand the huge torsional vibration and impact loads generated during gearbox operation and shifting, preventing the entire system from shaking or deforming. At the same time, the frame structure suspends the gearbox, making it easy for operators to access the gearbox and perform test connections.

[0025] In some technical solutions, the gearbox testing device may optionally include a base plate; wherein, the clamping and fixing frame and the support frame are disposed on the base plate.

[0026] In this way, on the one hand, all components can be precisely positioned and installed based on the base plate, simplifying the assembly process; on the other hand, the entire device can be moved or transported as a whole, avoiding the tedious work of repeatedly leveling and centering each component individually, thus improving the portability and deployment efficiency of the device.

[0027] Additional aspects and advantages of the technical solutions of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0028] Figure 1 This is one of the structural schematic diagrams of the gearbox testing device provided in the embodiments of this application;

[0029] Figure 2 This is a second schematic diagram of the structure of the gearbox testing device provided in the embodiments of this application;

[0030] Figure 3 This is the third schematic diagram of the gearbox testing device provided in the embodiments of this application;

[0031] Figure 4 This is the fourth schematic diagram of the gearbox testing device provided in the embodiments of this application;

[0032] Figure 5 This is a schematic diagram of the structure of the test component of the gearbox testing device provided in the embodiments of this application;

[0033] Figure 6 This is a schematic diagram of the structure of the second shifting mechanism of the gearbox testing device provided in this application embodiment;

[0034] Figure 7 This is one of the structural schematic diagrams of the automatic transmission in the embodiments of this application;

[0035] Figure 8 This is the second schematic diagram of the automatic transmission in the embodiments of this application;

[0036] Figure 9 This is one of the structural schematic diagrams of the manual transmission in the embodiments of this application;

[0037] Figure 10 This is the second structural schematic diagram of the manual transmission in the embodiments of this application.

[0038] in, Figures 1 to 10 The correspondence between component names and reference numerals in the attached drawings is as follows:

[0039] 100 Clamping and fixing frame; 110 Column; 120 Crossbeam; 200 Adapter assembly; 210 Support frame; 212 Receiving groove; 220 Connecting mechanism; 222 Adapter shaft; 224 Bearing; 300 Drive motor; 310 Output shaft; 400 Test assembly; 410 First gear shifting mechanism; 412 Gear shift knob; 420 Second gear shifting mechanism; 422 Gear shift handle; 424 Gear position detection unit; 426 Frequency converter; 430 Hydraulic pressure detection mechanism; 440 Control console; 442 Control cabinet; 500 Transmission assembly; 510 Synchronous belt; 520 Pulley; 530 Tensioning mechanism; 600 Base plate;

[0040] 20 Gearbox; 21 Input shaft; 22 Clutch solenoid valve. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0042] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0043] In related technologies, after a transmission is repaired, it cannot be directly tested for conformity; it must be installed in a vehicle and tested through actual operation. If the vehicle test fails, the transmission must be disassembled, repaired, and installed again, repeating this cycle until the transmission is repaired successfully. However, this repair method requires multiple disassembly and reassembly cycles, resulting in a significant waste of manpower, resources, and money, substantially increasing rework costs, and exhibiting low repair efficiency.

[0044] In view of this, in order to improve maintenance efficiency, reduce labor costs, and shorten maintenance cycles, embodiments of this application provide a gearbox testing device, including a clamping frame, an adapter assembly, a drive motor, and a testing assembly. The clamping frame is used to assemble and fix the gearbox to be tested; the adapter assembly includes a support frame and a connecting mechanism, with the support frame spaced apart from the clamping frame, and the connecting mechanism mounted on the support frame for connection to the input shaft of the gearbox to be tested; the drive motor is connected to the input shaft via the adapter assembly to provide power input to the gearbox to be tested; the testing assembly includes an oil pressure detection mechanism, a first shifting mechanism, and a second shifting mechanism, wherein the oil pressure detection mechanism is used to detect the oil pressure of the internal hydraulic system of the gearbox to be tested, the first shifting mechanism achieves shifting testing of a manual gearbox by controlling the on / off state of the clutch solenoid valve, and the second shifting mechanism achieves shifting testing of an automatic gearbox by adjusting the speed of the drive motor. With the above structure, the transmission testing device can perform functional tests on the repaired transmission directly in a non-vehicle state, avoiding the cumbersome process of multiple disassembly and reassembly tests, thereby effectively improving repair efficiency, reducing rework costs and shortening the repair cycle. At the same time, it can also perform compatibility tests on two different types of transmissions, manual and automatic, without structural modifications to the overall device, which not only significantly improves testing efficiency but also reduces cost.

[0045] The following is combined with Figures 1 to 10 The transmission testing device provided in this application will be described in detail through specific embodiments and application scenarios.

[0046] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 This application provides a gearbox testing device, the structure of which includes: a clamping and fixing frame 100, an adapter component 200, a drive motor 300, and a testing component 400.

[0047] Specifically, the clamping fixture 100 is used to assemble the gearbox 20 to be tested. The adapter assembly 200 includes a support frame 210 and a connecting mechanism 220; the support frame 210 is spaced apart from the clamping fixture 100, and the connecting mechanism 220 is disposed on the support frame 210 and used to connect with the input shaft 21 of the gearbox 20 to be tested. The drive motor 300 is connected to the connecting mechanism 220 and is used to provide power to the connecting mechanism 220. The test assembly 400 includes a first shifting mechanism 410, a second shifting mechanism 420, and an oil pressure detection mechanism 430; the oil pressure detection mechanism 430 is used to detect the oil pressure of the internal hydraulic system of the gearbox 20 to be tested; when the gearbox 20 to be tested is a manual gearbox (such as a dual-clutch gearbox, see reference 430), the test assembly 400 is used to test the oil pressure of the internal hydraulic system of the gearbox 20 to be tested. Figure 9 and Figure 10In the case of a transmission 20 under test, the first shift mechanism 410 is connected to the clutch solenoid valve 22 of the transmission 20 under test, and is used to control the opening and closing of the clutch solenoid valve 22; while the transmission 20 under test is an automatic transmission (such as an Allison transmission, see reference 410). Figure 7 and Figure 8 In the case of ), the second shift mechanism 420 is connected to the drive motor 300 to control the speed of the drive motor 300.

[0048] The clamping and fixing frame 100 serves as the fixed base for the gearbox 20, providing stable mechanical support for the gearbox 20 to ensure that the gearbox 20 remains stationary during the test and to avoid affecting the test accuracy due to vibration or displacement.

[0049] The adapter assembly 200 includes a support frame 210 and a connecting mechanism 220. The support frame 210, independent of the clamping and fixing frame 100, provides a mounting platform for the connecting mechanism 220. The connecting mechanism 220, as a power transmission component, precisely transmits the rotational motion of the drive motor 300 to the input shaft 21 of the gearbox 20, thereby driving the gearbox 20. By isolating the drive motor 300 through the connecting mechanism 220, the interference of the drive motor 300's vibration on the gearbox 20 can be reduced.

[0050] The drive motor 300 serves as a power source to simulate the output characteristics of an engine, providing adjustable speed and torque to the gearbox 20 to test its performance under different operating conditions.

[0051] The test assembly 400 includes a first shifting mechanism 410, a second shifting mechanism 420, and an oil pressure detection mechanism 430. The first shifting mechanism 410, dedicated to the manual transmission 20, controls the on / off state of the clutch solenoid valve 22 to achieve gear shifting. The second shifting mechanism 420, dedicated to the automatic transmission, adjusts the speed of the drive motor 300 to simulate vehicle speed requirements at different gears, thereby triggering automatic gear shifting. The oil pressure detection mechanism 430 monitors the oil pressure of the internal hydraulic system of the transmission 20 in real time to determine the operating status of the transmission 20 and whether it is qualified.

[0052] In practical applications, the gearbox 20 to be tested is mounted on the clamping bracket 100, and the input shaft 21 of the gearbox 20 is connected to the drive motor 300 via the connecting mechanism 220. If the gearbox 20 to be tested is a manual gearbox 20, the first shifting mechanism 410 and the clutch solenoid valve 22 are connected, the drive motor 300 is started, and the first shifting mechanism 410 is operated to complete the shift. The oil pressure detection mechanism 430 detects the oil pressure to determine the working state of the gearbox 20. If the gearbox 20 to be tested is an automatic gearbox 20, the second shifting mechanism 420 and the drive motor 300 are connected, the second shifting mechanism 420 is operated to select a gear, the drive motor 300 automatically adjusts its speed, triggering the gearbox 20 to automatically shift gears to complete the shift. The oil pressure detection mechanism 430 detects the oil pressure to determine the working state of the gearbox 20. In this way, the transmission 20 can be directly tested offline after repair, avoiding the cumbersome process of multiple disassembly and reassembly tests, thereby effectively improving repair efficiency, reducing rework costs, and shortening the repair cycle. Simultaneously, by isolating the drive motor 300 through the connecting mechanism 220, the vibration of the drive motor 300 can be reduced to minimize interference with the transmission 20, thus achieving stable transmission between the drive motor 300 and the transmission 20 and preventing damage to the internal structure of the transmission 20. Finally, the inclusion of a first shifting mechanism 410 and a second shifting mechanism 420 enables compatibility testing of both manual and automatic transmissions 20 without requiring structural modifications to the overall device, significantly improving testing efficiency and reducing costs.

[0053] In the above embodiments, the oil pressure detection mechanism 430 adopts a pressure gauge or a shock-resistant pressure gauge.

[0054] In some embodiments, the test component 400 further includes a console 440. A first shift mechanism 410 and a second shift mechanism 420 are disposed on the console 440.

[0055] An integrated control console 440 is adopted, which integrates the first shifting mechanism 410 and the second shifting mechanism 420 on the control console 440. On the one hand, it realizes the centralized layout of the shifting mechanism and avoids the scattered installation of the shifting mechanism, thereby greatly optimizing the overall structure of the test component 400 and making the system more compact. On the other hand, it provides the operator with a unified and centralized control point, which can complete all shifting operations without moving between different positions, thereby improving the convenience of operation and the efficiency of human-computer interaction.

[0056] The console 440 and control cabinet 442 are connected. Control cabinet 442, as the core control unit of the entire testing system, is responsible for processing various signals and data and controlling each stage of the testing process. Operators perform gear shifting operations on the console 440, which are transmitted to the control cabinet 442. Based on the received operation signals, the control cabinet 442 precisely controls other related components to complete the testing work.

[0057] Understandably, in practical applications, the control console 440 also integrates a human-machine interface to display the parameters of the first shifting mechanism 410, the second shifting mechanism 420, the hydraulic pressure detection mechanism 430, and the drive motor 300. This allows operators to monitor all key parameters (such as speed, gear, and hydraulic pressure) of the drive motor 300, the two shifting mechanisms, and the hydraulic pressure detection mechanism 430 in real time and intuitively on the control console 440 without the need for external equipment. This visualization of status greatly enhances the intelligence and transparency of operation. Simultaneously, the control console 440 is equipped with an emergency stop switch, allowing the testing process to be interrupted in emergencies, thereby improving testing safety.

[0058] Reference Figure 5 and Figure 6 In some embodiments, the second gear shifting mechanism 420 includes a gear shift handle 422, a gear position detection unit 424, and a frequency converter 426.

[0059] The gear shift lever 422 is located on the control panel 440. A gear position detection unit 424 is connected to the gear shift lever 422 and is used to detect the gear position status of the gear shift lever 422. A frequency converter 426 is connected to the gear position detection unit 424 and the drive motor 300, and is used to control the drive motor 300 to operate at the corresponding speed based on the gear position status detected by the gear position detection unit 424.

[0060] In the above embodiment, the gear shift lever 422 converts the operator's physical gear shifting action into a displacement signal, while the gear position detection unit 424 converts the displacement signal into a gear position signal. The frequency converter 426 then adjusts the speed of the drive motor 300 according to the gear position signal, thereby triggering the gearbox 20 to automatically shift gears.

[0061] Reference Figure 1 and Figure 3 In some embodiments, the first shift mechanism 410 includes a shift knob 412. The shift knob 412 is disposed on the control panel 440 and connected to the clutch solenoid valve 22 for controlling the opening and closing of the clutch solenoid valve 22.

[0062] In the above embodiment, the rotation operation of the shift knob 412 is converted into an on / off control signal for the clutch solenoid valve 22, thereby realizing the shift operation.

[0063] Reference Figure 1 and Figure 2 In some embodiments, the connecting mechanism 220 includes a transition shaft 222 and a bearing 224. The bearing 224 is rotatably mounted on the support frame 210 and sleeved on the transition shaft 222; one end of the transition shaft 222 is connected to the input shaft 21 of the gearbox 20, and the other end is connected to the drive motor 300.

[0064] In practical applications, the adapter shaft 222 can be supported and limited by the bearing 224, thereby reducing the shaking of the adapter shaft 222, realizing stable transmission between the drive motor 300 and the gearbox 20, and avoiding damage to the internal structure of the gearbox 20.

[0065] In some embodiments, the gearbox testing apparatus further includes a transmission assembly 500, which is disposed between the other end of the adapter shaft 222 and the drive motor 300.

[0066] By connecting the adapter shaft 222 and the drive motor 300 with the transmission assembly 500, the connection between the drive motor 300 and the adapter shaft 222 becomes more flexible. During actual installation, no complex customized modifications to the drive motor 300 and the adapter shaft 222 are required, thus reducing installation difficulty and cost, facilitating subsequent maintenance and replacement, and improving the maintainability of the device. Furthermore, during power transmission, the transmission assembly 500 acts as a buffer and shock absorber, reducing damage to the adapter shaft 222 and other components of the gearbox 20, and extending the service life of the device.

[0067] Reference Figures 1 to 4 In the above embodiment, the transmission assembly 500 includes a synchronous belt 510 and two pulleys 520. The two pulleys 520 are respectively disposed on the other end of the adapter shaft 222 and the output shaft 310 of the drive motor 300. The synchronous belt 510 connects the two pulleys 520.

[0068] The synchronous belt 510 has a certain degree of elasticity, which can play a role in buffering and shock absorption during power transmission. When the drive motor 300 starts, stops, or experiences load changes during operation, the resulting impact force is absorbed and buffered by the synchronous belt 510, thereby reducing damage to the adapter shaft 222 and other components of the gearbox 20. At the same time, the synchronous belt 510 has a relatively simple structure, making installation and disassembly convenient. In routine maintenance, only periodic checks of belt tension and wear are needed, and replacement is required when necessary. Moreover, the synchronous belt 510 has a relatively low cost, reducing maintenance and operating costs compared to some more complex transmission methods.

[0069] It is understood that the transmission component 500 may also use chain drive or gear drive, etc., and this embodiment is not limited thereto.

[0070] In some embodiments, the transmission assembly 500 further includes a tensioning mechanism 530. The tensioning mechanism 530 is coupled to the synchronous belt 510 and is used to adjust the tension or slack of the synchronous belt 510.

[0071] In practical applications, the synchronous belt 510 transmits power through the meshing of its teeth with the tooth grooves of the pulley 520. However, after long-term use, the synchronous belt 510 will increase in length due to factors such as stretching and wear, resulting in slack. The tensioning mechanism 530 is coupled to the synchronous belt 510 and can adjust the tension of the synchronous belt 510 in real time. When the belt slacks, the tensioning mechanism 530 applies an appropriate force to re-tension the synchronous belt 510, thereby ensuring that the power output from the drive motor 300 is stably and accurately transmitted to the adapter shaft 222, providing a reliable power input for the gearbox 20 test and improving the accuracy of the test results.

[0072] Specifically, the tensioning mechanism 530 includes a tensioning pulley and a fixed bracket, the fixed bracket having multiple mounting holes. When installing the synchronous belt 510, the synchronous belt 510 is first passed around the pulley 520 and the tensioning pulley, and then the position of the fixed bracket is adjusted so that the tensioning pulley applies a fixed preload to the synchronous belt 510.

[0073] Understandably, the tensioning pulley can also be driven by a spring or telescopic component to contact the timing belt 510 and achieve tension.

[0074] In some embodiments, the support frame 210 has a receiving groove 212 on the side facing the clamping fixture 100. The input shaft 21 of the gearbox 20 passes through the receiving groove 212 and is connected to the connecting mechanism 220.

[0075] In the above embodiment, the receiving groove 212 provides additional support for the gearbox 20 and cooperates with the clamping and fixing bracket 100 to position the gearbox 20 as a whole, ensuring that the gearbox 20 is always in the correct position during the test and will not be displaced due to external forces, thereby helping to improve the accuracy and stability of the test.

[0076] In some embodiments, the clamping bracket 100 includes at least two uprights 110 and a crossbeam 120. The at least two uprights 110 are arranged at intervals, and the crossbeam 120 is disposed between the at least two uprights 110. The gearbox 20 is mounted on the crossbeam 120.

[0077] In the above embodiment, the clamping and fixing bracket 100 forms a "gate"-shaped frame with good rigidity and stability. It can effectively withstand the huge torsional vibration and impact loads generated during the operation and shifting of the gearbox 20, preventing the entire system from shaking or deforming, and providing a solid mounting reference for the gearbox 20. At the same time, the frame structure suspends the gearbox 20 in the air, leaving ample operating space below and around it, making it easy for operators to approach the gearbox 20 and perform test connections.

[0078] In practical applications, the crossbeam 120 is provided with multiple fixing holes, and the gearbox 20 is assembled to the crossbeam 120 by bolts.

[0079] In some embodiments, the gearbox testing apparatus further includes a base plate 600. Both the clamping and fixing bracket 100 and the support bracket 210 are disposed on the base plate 600.

[0080] In the above embodiment, the clamping and fixing frame 100 and the support frame 210 are integrated into a whole by the base plate 600. On the one hand, during the assembly and debugging stage of the device, all components can be accurately positioned and installed with the base plate 600 as the reference, which simplifies the assembly process. On the other hand, the entire device can be moved or transported as a whole, avoiding the tedious work of repeatedly leveling and centering each component individually, which improves the portability and deployment efficiency of the device.

[0081] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0082] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A gearbox testing device, the gearbox having an input shaft, characterized in that, include: A clamping and fixing bracket, on which the gearbox is mounted; The adapter assembly includes a support frame and a connecting mechanism. The support frame is arranged at intervals relative to the clamping and fixing frame, and the connecting mechanism is disposed on the support frame for connecting the input shaft. A drive motor is connected to the connecting mechanism to provide power to the connecting mechanism; The test components include a first shift mechanism, a second shift mechanism, and an oil pressure detection mechanism; The oil pressure detection mechanism is used to detect the oil pressure of the hydraulic system inside the gearbox; When the gearbox is a manual gearbox, the first shift mechanism is connected to the clutch solenoid valve of the gearbox to control the opening and closing of the clutch solenoid valve. When the gearbox is an automatic gearbox, the second shift mechanism is connected to the drive motor to control the speed of the drive motor.

2. The gearbox testing device according to claim 1, characterized in that, The test component also includes a console; wherein the first shift mechanism and the second shift mechanism are disposed on the console.

3. The gearbox testing device according to claim 2, characterized in that, The second shifting mechanism includes: A gear shift lever is located on the control panel; A gear position detection unit is connected to the gear shift lever and is used to detect the gear position status of the gear shift lever. The frequency converter connects the gear detection unit and the drive motor, and is used to control the drive motor to operate at the corresponding speed according to the gear status detected by the gear detection unit.

4. The gearbox testing apparatus according to claim 2, characterized in that, The first gear shifting mechanism includes: A shift knob is located on the control panel and is connected to the clutch solenoid valve to control the opening and closing of the clutch solenoid valve.

5. The gearbox testing apparatus according to claim 1, characterized in that, The connecting mechanism includes an adapter shaft and a bearing; the bearing is rotatably mounted on the support frame and sleeved on the adapter shaft; one end of the adapter shaft is connected to the input shaft, and the other end of the adapter shaft is connected to the drive motor.

6. The gearbox testing apparatus according to claim 5, characterized in that, The gearbox testing device also includes a transmission assembly, which is disposed between the other end of the adapter shaft and the drive motor.

7. The gearbox testing apparatus according to claim 6, characterized in that, The transmission assembly includes: Two pulleys are respectively located at the other end of the adapter shaft and the output shaft of the drive motor; A timing belt connects the two pulleys.

8. The gearbox testing apparatus according to claim 7, characterized in that, The transmission assembly includes a tensioning mechanism, which is coupled to the synchronous belt and is used to adjust the tension or slack of the synchronous belt.

9. The gearbox testing apparatus according to any one of claims 1 to 8, characterized in that, The support frame has a receiving groove on the side facing the clamping and fixing frame, and the input shaft passes through the receiving groove and is connected to the connecting mechanism.

10. The gearbox testing apparatus according to claim 1, characterized in that, The clamping and fixing frame includes: At least two columns, spaced apart; A crossbeam is placed between at least two columns; The gearbox is mounted on the crossbeam.

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