Large-dip-angle crowned tooth coupling test platform

Abstract

The utility model discloses a large dip angle crowned tooth coupling test platform, which comprises a platform foundation, a driving motor, a load motor, a first sensor, a first axle box, a second axle box, a third axle box, a second sensor and an XY mobile platform, the second sensor is arranged between the load motor and the third axle box, the tested coupling is arranged between the first axle box and the second axle box, and the accompanying coupling is arranged between the second axle box and the third axle box. According to the utility model, the driving motor serves as driving power, the load motor provides torque, and the XY mobile platform is utilized to realize left-right and front-back adjustment of the tested coupling, so that the maximum static displacement compensation of the tested coupling can be verified; static displacement capacity test, dynamic displacement capacity test, maximum starting / braking torque test, limit rotating speed test, fatigue durability test and the like of the coupler can be carried out, and then the requirements of high-speed and high-power dynamic loading test of the tested coupler are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the transmission field of rail transit vehicle especially, relate to a big inclination drum gear coupling test platform. BACKGROUND

[0002] Big inclination drum gear coupling is a kind of rigid-flexible coupling that can allow larger inclination, is commonly used in the connection between the traction motor and drive gear box of rail transit vehicle.Big inclination drum gear coupling can compensate axial offset, radial offset, angular offset and comprehensive offset between motor shaft and gear box input shaft, is used to transmit torque and rotate speed, and is the key component of rail transit vehicle transmission system.With the development of rail transit vehicle to higher speed, higher requirements are put forward to the performance of big inclination drum gear coupling, and if the performance of coupling does not reach the standard, the abnormal temperature rise, wear aggravation, abnormal noise and displacement jamming and other phenomena will appear, seriously affect the safe operation of train.Therefore, it is necessary to develop a test bench that can simulate the motion state of coupling. SUMMARY

[0003] Therefore, the utility model provides a big inclination drum gear coupling test platform.

[0004] To achieve the above object, the utility model takes the following technical scheme:

[0005] The utility model discloses a big inclination drum gear coupling test platform, including platform foundation, still including the drive motor, load motor of setting on the platform foundation and setting between the drive motor, load motor's first sensor, first axle box, second axle box, third axle box, second sensor, the drive motor and load motor are all variable frequency motor, the first sensor and second sensor are all torque sensor, the both ends of first axle box, second axle box and third axle box all have the connecting flange plate, the first sensor is set between the drive motor and first axle box, the second sensor is set between the load motor and third axle box, the test coupling is set between first axle box and second axle box, the accompanying test coupling is set between the second axle box and third axle box, still be provided with XY mobile platform on the platform foundation, the XY mobile platform includes base, X direction moving mechanism and Y direction moving mechanism, the X direction moving mechanism includes X direction mobile seat, X direction power source and X direction guide pair, the X direction mobile seat is connected with the base through the X direction guide pair, and the X direction power source is transmission connection with X direction mobile seat, the Y direction moving mechanism includes Y direction mobile seat, Y direction power source and Y direction guide pair, the Y direction mobile seat is connected with X direction mobile seat through the Y direction guide pair, and the Y direction power source is transmission connection with Y direction mobile seat, and second axle box is fixed on the Y direction mobile seat, the XY mobile platform still includes X direction displacement sensor for monitoring X direction displacement amount respectively and Y direction displacement sensor for monitoring Y direction displacement amount.

[0006] Beneficial effect is: the drive motor of the utility model is as driving power, and the load motor provides torque, and the XY mobile platform is used to realize the left and right and back and forth reciprocating movement of the test coupling, not only can verify the maximum static displacement compensation of the test coupling, but also can carry out the static displacement capacity test, dynamic displacement capacity test, maximum starting / braking torque, limit speed, fatigue endurance and other tests of the coupling, to further meet the requirements of high-speed, high-power dynamic loading test of the test coupling, provide data support for the selection, design and improvement of the coupling.

[0007] Preferably, the X direction power source and Y direction power source are both linear reciprocating servo cylinders, the telescopic shaft of the X direction power source is hinged to the X direction mobile seat, and the telescopic shaft of the Y direction power source is hinged to the Y direction mobile seat. Beneficial effect is: the utility model uses two servo cylinders to provide static load and dynamic load for the test coupling, meeting the test requirements. In actual installation, the servo cylinders can also be replaced by air cylinders or hydraulic cylinders.

[0008] Preferably, the test coupling is fixedly connected with the first axle box and the second axle box through two transmission shafts, and the accompanying test coupling is fixedly connected with the third axle box and the second axle box through two transmission shafts; the bearings in the first axle box, the second axle box and the third axle box are all high-speed bearings.

[0009] The beneficial effect is that the test coupling is fixed with the transmission shaft with flanges and the shaft box, the test requirement of different models and different load couplings can be realized by replacing the transmission shaft, and the application range is wide. In actual test, if the test coupling and the test coupling are of the same model, various tests can be carried out to avoid the contingency of test data; if the models are different, the advantages and disadvantages of the test coupling can be determined through comparison test. In addition, the bearings in the three shaft boxes are high-speed bearings, which not only meet the test requirements of the highest test speed of the coupling, but also bear the load generated by the dynamic displacement of the coupling, thereby prolonging the maintenance cycle of the test platform.

[0010] Preferably, the fixed seat of the driving motor and the load motor is fixed on the platform base by bolts; the first sensor and the second sensor are fixed on the platform base by the support seat, the first shaft box, the second shaft box and the XY moving platform are fixed on the base, and the base is fixed on the platform base by bolts. In the utility model, the driving motor, the load motor, the first sensor, the second sensor and the shaft box all have seat bodies, which not only ensure coaxial precision, but also facilitate disassembly and assembly and position adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a structural schematic view of the utility model.

[0012] Fig. 2 It is a schematic view of the first shaft box, the second shaft box, the third shaft box, the test coupling and the test coupling.

[0013] Fig. 3 It is a structural schematic view of the XY moving platform. DETAILED DESCRIPTION

[0014] The embodiments of the utility model will be described in detail below with reference to the drawings, and the embodiments are implemented on the premise of the technical scheme of the utility model, and detailed implementation modes and specific operation processes are given, but the protection scope of the utility model is not limited to the following embodiments.

[0015] It should be noted that in the description of the utility model, the relationship 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 such actual relationship or order between the entities or operations.

[0016] In the description of the utility model, unless another definite provision and limitation, the term "connection", "connect" that can appear should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements inside.For the person skilled in the art, the above-mentioned terms can be understood by the specific meaning in the utility model through specific circumstances.

[0017] As Figs. 1-3 The utility model discloses a big inclination drum gear coupling test platform, including platform foundation 1, still include the drive motor 2, load motor 3 and the first sensor 4, first axle box 5, second axle box 6, third axle box 7, second sensor 8 that set up on platform foundation 1 between drive motor 2, load motor 3 are set gradually, the motor shaft of load motor 3, the motor shaft of drive motor 2, first sensor 4, second sensor 8, first axle box 5, second axle box 6 and third axle box 7 coaxial line setting, ensure the coaxial accuracy of test coupling F1 and accompanying test coupling F2;

[0018] Load motor 3 and drive motor 2 are variable frequency motor, load motor 3 and drive motor 2 are connected with controller, can set the speed and direction of rotation of each motor through controller, and then make test coupling F1 according to the set speed and direction of rotation to run, to meet the test demand of test coupling F1;

[0019] First sensor 4 and second sensor 8 are all torque sensors, and the signal output end of first sensor 4 and second sensor 8 is connected with the signal input end of controller, in the testing process, first sensor 4 and second sensor 8 transmit torque signal to controller, and then determine the torque and speed of test coupling F1 and accompanying test coupling F2;Both ends of first sensor 4 and second sensor 8 have connecting flange, and both ends of first axle box 5, second axle box 6 and third axle box 7 have connecting flange plate;

[0020] The first sensor 4 is located between the driving motor 2 and the first shaft box 5, and the first sensor 4 is connected with the driving motor 2 and the first shaft box 5 through a diaphragm coupling, respectively; the tested coupling F1 is arranged between the first shaft box 5 and the second shaft box 6, and the tested coupling F1 is fixedly connected with the first shaft box 5 and the second shaft box 6 through flanges of a first transmission shaft F2 and the first shaft box 5 and the second shaft box 6, and the tested coupling F1 is simple and convenient to disassemble and assemble; similarly, the tested coupling F2 is located between the second shaft box 6 and the third shaft box 7, and the tested coupling F2 is fixedly connected with the second shaft box 6 and the third shaft box 7 through a second transmission shaft F4; the second sensor 8 is located between the load motor 3 and the third shaft box 7, and the second sensor 8 is connected with the load motor 3 and the third shaft box 7 through a diaphragm coupling; the flange connection is adopted in the utility model, the tested coupling F1 can be conveniently replaced, the connection requirements of the shaft box and the tested coupling F1 of different models and different loads can be realized, and then the simulation test of different couplings is realized, and data support is provided for the selection of the couplings of railway traffic vehicles.

[0021] The XY moving platform 9 is further arranged on the platform base 1, and the second shaft box 6 is fixed on the XY moving platform 9. In actual testing, the XY moving platform 9 can be used to apply unidirectional or bidirectional static load to the second shaft box 6 (the position of the second shaft box in the X direction and / or the Y direction is adjusted first, and then the load test is loaded), and the XY moving platform 9 can also be used to apply unidirectional or bidirectional dynamic load to the second shaft box 6 (the position of the second shaft box in the X direction and / or the Y direction is adjusted during the testing process), and then the static load or the dynamic load is applied to the tested coupling F1, and then the static displacement capacity and the dynamic displacement capacity of the tested coupling F1 are determined.

[0022] The utility model uses the driving motor 2 as starting power, and uses the load motor 3 to provide torque for the whole test platform, and can carry out maximum starting / braking torque, limit speed, fatigue endurance and other tests on the tested coupling F1; the driving motor 2, the load motor 3 and the XY moving platform 9 are combined, and the static displacement capacity test and the dynamic displacement capacity test of the tested coupling F1 can be carried out, and then the static strain capacity and the dynamic strain capacity of the tested coupling F1 are verified, and data support is provided for the selection of the couplings of vehicles.

[0023] The tested coupling F1 is fixedly connected with the shaft box through the transmission shaft with the flange, and is simple and convenient to disassemble and assemble, and can realize the test requirements of couplings of different models and different loads, and has wide application range. In actual testing, if the tested coupling F1 and the tested coupling F2 are of the same model, various tests are carried out at the same time, and the contingency of test data is avoided; if the tested coupling F1 and the tested coupling F2 are of different models, the advantages and disadvantages of the couplings and the applicable environment can be determined through the comparative analysis of the comparison results of the test data.

[0024] Combination Figs. 2-3It can be seen that the XY moving platform 9 comprises a base 9a, an X-direction moving mechanism and a Y-direction moving mechanism. The X-direction moving mechanism comprises an X-direction moving seat 9b, an X-direction power source 9c and an X-direction guide pair. The X-direction moving seat 9b is connected with the base 9a through the X-direction guide pair. The X-direction power source 9c is in transmission connection with the X-direction moving seat 9b. The X-direction guide pair comprises a pair of X-direction slide rails 9d which are arranged at intervals on the base 9a and X-direction slide blocks which are in sliding cooperation with each X-direction slide rail 9d. The X-direction slide blocks are fixedly connected with the X-direction moving seat 9b. The X-direction moving seat 9b is in transmission connection with the X-direction power source 9c. The Y-direction moving mechanism comprises a Y-direction moving seat 9e, a Y-direction power source 9f and a Y-direction guide pair. The Y-direction moving seat 9e is connected with the X-direction moving seat 9b through the Y-direction guide pair. The Y-direction guide pair comprises a pair of Y-direction slide rails 9g which are arranged at intervals on the X-direction moving seat 9b and Y-direction slide blocks which are in sliding cooperation with each Y-direction slide rail 9g. The Y-direction slide blocks are fixedly connected with the Y-direction moving seat 9e. The Y-direction moving seat 9e is in transmission connection with the Y-direction power source 9f. The second shaft box 6 is fixed on the Y-direction moving seat 9e.

[0025] The XY moving platform 9 further comprises an X-direction displacement sensor for monitoring the X-direction displacement amount and a Y-direction displacement sensor for monitoring the Y-direction displacement amount. The signal output ends of the X-direction displacement sensor and the Y-direction displacement sensor are connected with the signal input end of the controller, so as to monitor the displacement of the X-direction and the Y-direction respectively.

[0026] In operation, the X-direction power source 9c drives the X-direction moving seat 9b to move linearly along the X-direction slide rail 9d in the X-direction, so as to realize the X-direction movement of the second shaft box 6. The X-direction load can be applied to the test coupling F1 through the second shaft box 6. The Y-direction power source 9f drives the Y-direction moving seat 9e to move linearly along the Y-direction slide rail 9g in the Y-direction, so as to realize the Y-direction movement of the second shaft box 6. The Y-direction load can be applied to the test coupling F1 through the second shaft box 6. In the test process, the static load and the dynamic load can be applied in one direction or in two directions, so as to verify the static displacement capacity and the dynamic displacement capacity of the test coupling F1. In the test, the stroke of the X-direction servo cylinder and the Y-direction servo cylinder can be preset, so as to verify whether the transverse displacement amount and the longitudinal displacement amount of the coupling meet the requirements.

[0027] In installation, the X-direction power source 9c and the Y-direction power source 9f are servo cylinders. The telescopic shaft of the X-direction power source 9c is hinged with the X-direction moving seat 9b. The telescopic shaft of the Y-direction power source 9f is hinged with the Y-direction moving seat 9e. The servo cylinder is more convenient to maintain than the pneumatic cylinder and the hydraulic cylinder. In actual installation, the pneumatic cylinder or the hydraulic cylinder can be used to replace the servo cylinder according to the existing pneumatic station or hydraulic station in the workshop. The bearings in the first shaft box 5, the second shaft box 6 and the third shaft box 7 are high-speed bearings, which can only meet the test requirements of the highest test rotating speed of the coupling, but also can bear the load generated by the dynamic displacement of the coupling, so as to prolong the maintenance period of the test platform.

[0028] In actual installation, the fixing bases of the driving motor 2 and the load motor 3 are fixed on the platform base 1 by bolts; the first sensor 4 and the second sensor 8 are fixed on the platform base 1 by the support seats 10 respectively; the first shaft box 5, the second shaft box 6 and the XY moving platform 9 are fixed on the base 11, and the base 11 is fixed on the platform base 1 by bolts. The driving motor 2, the load motor 3, the first sensor 4, the second sensor 8 and the shaft boxes all have seat bodies, which not only ensure coaxial accuracy, but also facilitate disassembly and adjustment of positions.

[0029] It should be noted that the controller can be a general processor, a special processor, a conventional processor, a digital signal processor (DSP), a plurality of microprocessors, one or more microprocessors associated with a DSP core, a controller, a microcontroller, an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) circuit, any other type of integrated circuit (IC), and a state machine, etc.

[0030] The controller can also be a PLC controller, which is a programmable logic controller (PLC), a digital electronic device with a microprocessor for automatic control of digital logic controllers. The controller can also be an industrial computer, which has important computer properties and features, such as a computer CPU, hard disk, memory, peripherals and interfaces, and an operating system, control network and protocol, computing power, and a friendly human-machine interface.

[0031] Further, the controller can also be provided with a wireless communication module to realize connection with a remote terminal, receive control instructions of the remote terminal, and also can feedback related parameters of real-time working status.

[0032] Finally, it should be emphasized that the above only describes preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative labor, or make equivalent replacements to some technical features. Thus, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A large angle gear coupling test platform comprising a platform base, characterized by: The platform base is further provided with a driving motor and a load motor arranged on the platform base, a first sensor, a first shaft box, a second shaft box, a third shaft box and a second sensor arranged between the driving motor and the load motor, the driving motor and the load motor are variable frequency motors, the first sensor and the second sensor are torque sensors, both ends of the first shaft box, the second shaft box and the third shaft box are provided with connecting flanges; the first sensor is arranged between the driving motor and the first shaft box, the second sensor is arranged between the load motor and the third shaft box, a test coupling is arranged between the first shaft box and the second shaft box, and a test coupling is arranged between the second shaft box and the third shaft box. The platform base is further provided with an XY moving platform, the XY moving platform comprises a base, an X-direction moving mechanism and a Y-direction moving mechanism, the X-direction moving mechanism comprises an X-direction moving seat, an X-direction power source and an X-direction guide pair, the X-direction moving seat is connected with the base through the X-direction guide pair, and the X-direction power source is in transmission connection with the X-direction moving seat; the Y-direction moving mechanism comprises a Y-direction moving seat, a Y-direction power source and a Y-direction guide pair, the Y-direction moving seat is connected with the X-direction moving seat through the Y-direction guide pair, and the Y-direction power source is in transmission connection with the Y-direction moving seat, and the second shaft box is fixed on the Y-direction moving seat. The XY moving platform further comprises an X-direction displacement sensor for monitoring an X-direction displacement amount and a Y-direction displacement sensor for monitoring a Y-direction displacement amount.

2. The large angle gear coupling test platform of claim 1, wherein: The X-direction power source and the Y-direction power source are linear reciprocating servo cylinders, the telescopic shaft of the X-direction power source is hinged to the X-direction moving seat, and the telescopic shaft of the Y-direction power source is hinged to the Y-direction moving seat.

3. The large angle gear coupling test platform of claim 1, wherein: The test coupling is fixed with the first shaft box and the second shaft box through two transmission shafts respectively, and the test coupling is fixed with the third shaft box and the second shaft box through two transmission shafts respectively; the bearings in the first shaft box, the second shaft box and the third shaft box are high-speed bearings.

4. The large angle gear coupling test platform of claim 1, wherein: The fixed seat of the driving motor and the load motor is fixed on the platform base through bolts; the first sensor and the second sensor are fixed on the platform base through a support seat, the first shaft box, the second shaft box and the XY moving platform are fixed on the base, and the base is fixed on the platform base through bolts.

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