CN216132630U - Double-gear-box labyrinth sealing performance test bed - Google Patents

Abstract

The utility model discloses a double-gear-box labyrinth sealing performance test bed, which relates to the technical field of rail vehicle gear box tests and comprises a load motor, a driving motor, an accompanying gear box system and a tilting test platform, wherein the load motor can drive the accompanying gear box system to rotate, the driving motor is used for driving a main gear box system to rotate, the accompanying gear box system is used for being in transmission connection with the main gear box system, the tilting test platform is used for fixing the main gear box system and the accompanying gear box system, an included angle between the tilting test platform and a horizontal plane can be adjusted, and the relative height change of two ends of the main gear box system in the axial direction is driven, and the relative height change of two ends of the accompanying gear box system in the axial direction is driven. The double-gearbox labyrinth sealing performance test bed can simulate resistance during driving and can also simulate the inclination angle of a gearbox when a train passes through a curve.

Description

Double-gear-box labyrinth sealing performance test bed

Technical Field

The utility model relates to the technical field of railway vehicle gear box tests, in particular to a double-gear box labyrinth seal performance test bed.

Background

The type test of the gear box of the motor train unit in China generally follows the standards of 'TB/T3134 driving gear box for the motor train unit' and 'TJ/CL 277 motor train unit gear box composition provisional technical conditions', most gear box labyrinths adopt non-contact clearance type sealing structures, the risk of lubricating oil leakage exists at the labyrinth positions, and therefore the working states of the gear box under the conditions of different rotating speeds, different torque loads and different inclination angles need to be simulated, and the main purpose of the inclination test is to verify whether the lubricating oil leakage problem occurs at the gear box labyrinth positions. However, at present, a fixed platform is commonly adopted for a railway vehicle gearbox loading test bed in China, namely a driving motor and a transmission shaft of a tested gearbox are coaxial, a load is transmitted to the tested gearbox through the motor, the inclination angle of the gearbox when a train passes through a curve cannot be simulated, and an inclination leakage test is often a no-load test without torque load, so that the test bed has a single test function, and a torque loading test and an inclination angle test need to be carried out independently, which is greatly different from the actual running condition of the train.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a double-gearbox labyrinth sealing performance test bed, which is used for solving the problems in the prior art and can simulate the resistance during driving and the inclination angle of a gearbox when a train passes through a curve.

In order to achieve the purpose, the utility model provides the following scheme:

the utility model provides a double-gear-box labyrinth sealing performance test bed which comprises a load motor, a driving motor, an accompanying gear box system and a tilting test platform, wherein the load motor can drive the accompanying gear box system to rotate, the driving motor is used for driving a main gear box system to rotate, the accompanying gear box system is used for being in transmission connection with the main gear box system, the tilting test platform is used for fixing the main gear box system and the accompanying gear box system, an included angle between the tilting test platform and a horizontal plane can be adjusted, relative height changes of two axial ends of the main gear box system are driven, and relative height changes of two axial ends of the accompanying gear box system are driven.

Preferably, the gearbox system further comprises a torque transmission element, two ends of the torque transmission element are respectively fixed with the main test gearbox system and the auxiliary test gearbox system, and the torque transmission element is used for transmitting torque between the main test gearbox system and the auxiliary test gearbox system.

Preferably, the tilting test device further comprises a main axle, a main universal joint, a first main axle box seat and a second main axle box seat, wherein two ends of the main axle are respectively rotatably mounted in the first main axle box seat and the second main axle box seat, one end of the main universal joint is fixedly connected with an output shaft of the driving motor, the other end of the main universal joint is fixedly connected with one end of the main axle, the main axle is used for penetrating through the main test gear set, the first main axle box seat is fixed on the tilting test platform, the main universal joint is supported on the tilting test platform through the second main axle box seat, and one end of the torque transmission element is used for being fixedly connected with the main test gear set;

accompany the examination gear box system including accompany the axletree, accompany the universal joint, accompany the examination gear train, first accompany the axletree seat and the axle box seat is accompanied to the second, accompany the both ends of axletree and rotate respectively and install first accompany the axletree seat with the second accompany in the axletree seat, accompany the one end of universal joint with the output shaft fixed connection of load motor, the other end with accompany the one end fixed connection of axletree, accompany the axletree with accompany the gear wheel coaxial fixation of examination gear train, first accompany the axletree seat and fix on the experimental platform of falling pendulum, accompany the universal joint through the second accompany the axletree seat support in on the experimental platform of falling pendulum, accompany the examination gear train with keep away from on the moment of torsion transmission component the one end of owner's examination gear train is fixed.

Preferably, the main universal joint is fixedly connected with the driving motor through a main coupling; the accompany universal joint through accompany the shaft coupling with load motor fixed connection.

Preferably, the test device further comprises two counter-force supporting seats, wherein the two counter-force supporting seats are fixed on the tilting test platform, are respectively connected with two ends of the torque transmission element in a rotating mode, and are used for supporting the torque transmission element.

Preferably, still be fixed with the main support on the experimental platform of fascinating and accompany the support, the main support be used for supporting main examination gear train be used for with main examination gear train rotates and is connected, accompany the support and be located accompany examination gear train lower extreme, just accompany the support upper end with accompany examination gear train and rotate and be connected and be used for supporting accompany examination gear train.

Preferably still include the support seat of inclining and sway and incline pendulum adjusting part, the support seat of inclining and sway is used for propping up incline pendulum test platform, incline pendulum adjusting part is used for adjusting incline pendulum test platform's inclination.

Preferably, the tilting test platform is rectangular, the number of the tilting support seats is two, the two tilting support seats are symmetrically arranged on two sides of the tilting test platform, a connecting line between the two tilting support seats is perpendicular to the axis of the main test gear box system, the tilting support seats are rotatably connected with the tilting test platform, and the tilting test platform can rotate around the connecting line between the two tilting support seats;

the four tilting adjusting assemblies are respectively positioned at four corners on the tilting test platform, and the adjusting directions and the adjusting distances of the two tilting adjusting assemblies positioned at the same side of the connecting line between the two tilting supporting seats are the same.

Preferably, a rotating shaft is fixed at the two ends of the tilting test platform corresponding to the positions of the tilting support seats, the tilting support seats comprise a base and a support table, the support table is fixed at the upper end of the base, the rotating shaft is rotatably mounted at the upper end of the support table, and the tilting test platform can rotate around the axis of the rotating shaft;

the utility model discloses a tilting test platform, including base plate, support, lead screw, nut and hand wheel, the lower extreme of support is fixed the bottom plate upper end, the bottom plate with the base parallel and level, the upper end of support is equipped with a through-hole, the lower extreme of lead screw passes the through-hole can contact tilting test platform's up end, the upper end of lead screw with hand wheel fixed connection, nut threaded connection in the periphery of lead screw, just the nut is fixed the upper end of support, the hand wheel can drive the lead screw rotates, and makes the lead screw goes up and down.

Compared with the prior art, the utility model has the following technical effects:

according to the double-gearbox labyrinth sealing performance test bed provided by the utility model, the driving motor can drive the main test gearbox system to rotate, the load motor can drive the auxiliary test gearbox system to rotate, the driving motor and the load motor respectively drive the main test gearbox system and the auxiliary test gearbox system to reversely rotate, the main test gearbox system is in transmission connection with the auxiliary test gearbox system so as to realize torque transmission, the auxiliary test gearbox system is used for providing resistance, the load motor outputs different torques according to test requirements so as to simulate running resistance under different road conditions, the simulation authenticity is high, the accuracy of test results is further improved, the main test gearbox system and the auxiliary test gearbox system are both fixed on the tilting test platform, the included angle between the tilting test platform and the horizontal plane can be adjusted, and the main test gearbox system and the auxiliary test gearbox system are driven to tilt, the relative altitude variation that drives main gear box system both ends promptly for the high one end of main gear box system of trying is low, and then the inclination of main gear box system of trying when simulation bend is gone improves the authenticity of simulation, observes main gear box system again on this basis and whether takes place the lubricating oil seepage, can detect labyrinth sealing performance more truthfully, improves the accuracy of test result.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a double gearbox labyrinth seal performance test bed provided by a first embodiment;

FIG. 2 is a schematic structural diagram of a double gearbox labyrinth seal performance test bed provided by the first embodiment when a driving motor and a load motor are not installed;

FIG. 3 is a schematic diagram of the connection of a main test gearbox system and a torque transmission element in a double gearbox labyrinth seal performance test bed provided by the first embodiment;

FIG. 4 is a schematic diagram illustrating a connection between a tilt adjusting assembly and a tilt testing platform in a double gearbox labyrinth seal performance testing platform according to the first embodiment;

FIG. 5 is a schematic view of a tilting test platform in a double-gearbox labyrinth seal performance test bed provided by the first embodiment when the tilting test platform is not tilted;

FIG. 6 is a schematic view of a tilting test platform in a double gearbox labyrinth seal performance test bed provided by the first embodiment when the tilting test platform tilts in one direction;

FIG. 7 is a schematic view of a tilting test platform in a double gearbox labyrinth seal performance test bed provided by the first embodiment when the tilting test platform tilts towards another direction;

FIG. 8 is a schematic structural diagram of a tilting support seat in a double gearbox labyrinth seal performance test bed provided by the first embodiment;

FIG. 9 is a schematic structural diagram of a tilt adjusting assembly in a double gearbox labyrinth seal performance test bed provided by the first embodiment;

in the figure: 100-double gearbox labyrinth seal performance test bed, 1-driving motor, 2-loading motor, 3-main test gearbox system, 31-main universal joint, 32-main test gear set, 33-main axle, 34-first main axle box seat, 4-accompanying test gearbox system, 41-accompanying universal joint, 42-accompanying test gear set, 43-accompanying axle, 44-first accompanying axle box seat, 5-tilting test platform, 6-tilting support seat, 61-base, 62-support platform, 63-rotating shaft, 7-tilting adjustment assembly, 71-bottom plate, 72-support seat, 73-nut, 74-hand wheel, 75-lead screw, 8-torque transmission element, 81-main counter-force support seat and 82-accompanying counter-force support seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model aims to provide a double-gearbox labyrinth sealing performance test bed, and aims to solve the technical problem that the accuracy of a test result is influenced because the change of the axial load of a gearbox bearing caused by wheel-rail acting force is difficult to simulate by the conventional test bed device.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Example one

As shown in fig. 1-2, the present embodiment provides a dual gearbox labyrinth sealing performance test bed 100, which includes a load motor 2, a driving motor 1, a main torque sensor, an auxiliary torque sensor, a main test gearbox system 3, an auxiliary test gearbox system 4, and a tilt test platform 5, wherein the load motor 2 can drive the auxiliary test gearbox system 4 to rotate, the driving motor 1 is used for driving the main test gearbox system 3 to rotate, the driving motor 1 and the load motor 2 respectively drive the main test gearbox system 3 and the auxiliary test gearbox system 4 to rotate in opposite directions, the main test gearbox system 3 is in transmission connection with the auxiliary test gearbox system 4, so as to realize torque transmission, the auxiliary test gearbox system 4 is used for providing resistance, and the load motor 2 outputs different torques according to test requirements, so as to simulate driving resistance under different road conditions, so as to simulate high authenticity, and further improve accuracy of test results, the main trial gear box system 3 and the accompanying trial gear box system 4 are both fixed on the tilting test platform 5, the angle between the tilting test platform 5 and the horizontal plane can be adjusted, the main trial gear box system 3 and the accompanying trial gear box system 4 are driven to tilt, two ends of the main trial gear box system 3 are located at different heights, one end of the main trial gear box system 3 is high, the other end of the main trial gear box system 3 is low, the inclination angle of the main trial gear box system 3 when a bend is simulated to run is further simulated, the authenticity of simulation is improved, the inclination angles of the main trial gear box system 3 and the accompanying trial gear box system 4 are consistent, whether lubricating oil leakage occurs in the main trial gear box system 3 is observed on the basis, the labyrinth sealing performance can be detected more truly, the accuracy of a test result is improved, and preferably, the adjustment range of the inclination angle is +/-12.

Specifically, as shown in fig. 3, the dual gearbox labyrinth seal performance test bench 100 provided in this embodiment further includes a torque transmission element 8, two ends of the torque transmission element 8 are respectively fixed to the main test gearbox system 3 and the auxiliary test gearbox system 4, and the torque transmission element 8 is used for transmitting torque between the main test gearbox system 3 and the auxiliary test gearbox system 4, so that resistance applied during driving is simulated through torque transmission during a test, and a real working state can be simulated.

As shown in fig. 1-3, the dual gearbox labyrinth seal performance test bench 100 provided in this embodiment further includes a main axle 33, a main universal joint 31, a first main axle box seat 34 and a second main axle box seat, two ends of the main axle 33 are respectively rotatably installed in the first main axle box seat 34 and the second main axle box seat to support the main axle 33, one end of the main universal joint 31 is fixedly connected with the output shaft of the driving motor 1, the other end of the main axle 31 is fixedly connected with one end of the main axle 33, torque is provided and tested for the main axle 33 through the main universal joint 31 to improve stability during rotation, the main test gear set 32 is coaxially fixed with the main axle 33, and one end of the main axle 33 far from the main universal joint 31 is rotatably installed on a large gear in the first main axle box seat 34, preferably, the first main axle box seat 34 is a fast-inserting box seat, which is convenient to connect, the main axle 33 is provided with support and maintain stable rotation through the first main axle box seat 34, and further improve the stability of the whole structure in the test process, the first main axle box seat 34 is fixed on the tilting test platform 5, the main universal joint 31 is supported on the tilting test platform 5 through the second main axle box seat, the main test gear set 32 is fixed with one end of the torque transmission element 8, preferably, the main test gear set 32 comprises a big gear and a small gear, the big gear is fixed on the main axle 33, the small gear is meshed with the periphery of the big gear, the small gear is fixedly sleeved on one end of the torque transmission element 8, so that when the driving motor 1 drives the big gear to rotate, the small gear can be driven to rotate, and the torque is acted on the torque transmission element 8, the auxiliary test gear set 42 is identical with the main test gear set 32 in structure, and the small gear in the auxiliary test gear set 42 is fixed with one end of the torque transmission element 8 far away from the main test gear set 32, when the auxiliary test gear set 42 is driven to rotate by the load motor 2, torque can be transmitted to the main test gear set 32 via the torque transfer element 8, thereby simulating the resistance experienced during travel;

the test accompanying gear box system 4 comprises an accompanying axle 43, an accompanying universal joint 41, an accompanying gear set 42, a first accompanying axle box seat 44 and a second accompanying axle box seat, two ends of the accompanying axle 43 are respectively and rotatably installed in the first accompanying axle box seat 44 and the second accompanying axle box seat, one end of the accompanying universal joint 41 is fixedly connected with an output shaft of the load motor 2, the other end of the accompanying axle 43 is fixedly connected with one end of the accompanying axle 43, the accompanying axle 43 is provided with and tested with torque through the accompanying universal joint 41, the stability in the rotating process is improved, the accompanying gear set 42 is coaxially fixed with the accompanying axle 43, one end of the accompanying axle 43, far away from the accompanying universal joint 41, is rotatably installed on the first accompanying axle box seat 44, preferably, the first accompanying axle box seat 44 is a fast inserting axle box seat, the first accompanying axle box seat 44 is used for providing support for the accompanying axle 43 and maintaining stable rotation of the accompanying axle 43, the stability of the whole structure in the testing process is further improved, the first accompanying axle box seat 44 is fixed on the testing platform 5, the auxiliary universal joint 41 is supported on the tilting test platform 5 through a second auxiliary shaft box seat, and the auxiliary gear group 42 is fixed with one end of the torque transmission element 8, which is far away from the main gear group 32.

The main universal joint 31 is fixedly connected with the driving motor 1 through a main coupler; accompany universal joint 41 through accompanying shaft coupling and load motor 2 fixed connection, and then guarantee main examination gear box system 3 and accompany examination gear box system 4 through main universal joint 31 and accompany universal joint 41 and incline the pendulum in-process, can not receive driving motor 1 and load motor 2's restriction to make moment of torsion loading and incline the pendulum and do not influence each other.

As shown in fig. 1-2, the dual gearbox labyrinth sealing performance test bed 100 provided by the present invention further includes two counter-force supporting seats, both of which are fixed on the tilt test platform 5, and are respectively rotatably connected to two ends of the torque transmission element 8 and are used for supporting the torque transmission element 8, so as to ensure that the torque transmission element 8 and each pinion are coaxial, so as to ensure that the torque transmission element and each pinion rotate stably, the counter-force supporting seat connected to the main test gear set is a main counter-force supporting seat 81, and the other counter-force supporting seat is an auxiliary counter-force supporting seat 82.

Still be fixed with the main support on the experimental platform 5 of inclining and pendulum and accompany the support, the main support is located main examination gear train 32 lower extreme, and the main support upper end is connected with main examination gear train 32 rotation, and be used for supporting main examination gear train 32, accompany the support and be located and accompany examination gear train 42 lower extreme, and accompany the support upper end and accompany examination gear train 42 rotation and be connected and be used for supporting and accompany examination gear train 42, and then when trying gear train 32 and accompany examination gear train 42 and provide the holding power to main, still can not restrict its rotation, guarantee that each center pin that needs pivoted component all is located same height.

As shown in fig. 4 to 7, the double-gearbox labyrinth sealing performance test bed 100 provided in this embodiment further includes an inclination and inclination support seat 6 and an inclination and inclination adjusting component 7, where the inclination and inclination support seat 6 is used to support the inclination and inclination test platform 5, and the inclination and inclination adjusting component 7 is used to adjust an inclination angle of the inclination and inclination test platform 5, so as to ensure stability of the inclination and inclination test platform 5 and further achieve inclination and inclination.

The tilting test platform 5 is rectangular, the number of the tilting support seats 6 is two, the two tilting support seats 6 are symmetrically arranged on two sides of the tilting test platform 5, a connecting line between the two tilting support seats 6 is perpendicular to the axis of the main test gear box system 3, so that the tilting direction of the tilting test platform 5 is consistent with the tilting direction of the main test gear box system 3 in the actual curve running process, the tilting support seats 6 are rotatably connected with the tilting test platform 5, the tilting test platform 5 can rotate around the connecting line between the two tilting support seats 6, and the rotating stability of the tilting test platform 5 is ensured;

the number of the tilting adjusting assemblies 7 is four, the tilting adjusting assemblies 7 are respectively positioned at four corners on the tilting test platform 5, and the adjusting directions and the adjusting distances of the two tilting adjusting assemblies 7 positioned at the same side of the connecting line between the two tilting supporting seats 6 are the same, so that the tilting direction and the tilting angle of the real simulation main test gear box system 3 are ensured.

As shown in fig. 8, a rotating shaft 63 is fixed at each of two ends of the tilting test platform 5 corresponding to the position of each tilting support seat 6, each tilting support seat 6 includes a base 61 and a support table 62, the support table 62 is fixed at the upper end of the base 61, the rotating shaft 63 is rotatably mounted at the upper end of the support table 62, preferably, a bearing is mounted at the upper end of the support table 62, an inner ring of the bearing is in interference fit with the rotating shaft 63, an outer ring of the bearing is in interference fit with the upper end of the support table 62, and the tilting test platform 5 can rotate around the axis of the rotating shaft 63, so as to drive the main test gear box system 3 and the accompanying test gear box system 4 to tilt synchronously, and the tilting support seats 6 can support the tilting test platform 5, ensure that the tilting test platform can rotate, and ensure stable rotation of the tilting test platform 5;

as shown in fig. 9, the tilt adjusting assembly 7 includes a bottom plate 71, a support 72, a screw 75, a nut 73, and a hand wheel 74, wherein a lower end of the support 72 is fixed at an upper end of the bottom plate 71, the bottom plate 71 is flush with the base 61, an upper end of the support 72 is provided with a through hole, a lower end of the screw 75 passes through the through hole and can contact an upper end surface of the tilt testing platform 5, an upper end of the screw 75 is fixedly connected with the hand wheel 74, the nut 73 is screwed on an outer periphery of the screw 75, and the nut 73 is fixed at an upper end of the support 72, during an actual adjusting process, the hand wheel 74 is rotated in different directions, so that the screw 75 can be raised or lowered, when the hand wheel 74 is rotated, the hand wheel 74 drives the screw 75 to rotate, and meanwhile, because a position of the nut 73 is fixed and the nut 73 cannot rotate, the lifting of the hand wheel 74 is achieved, an adjusting manner is simple and convenient, and when an angle of tilt is adjusted, the hand wheel 74 located at the same direction of the main testing gear box system 3 needs to rotate, and the angles of rotation are the same, so that the distances of ascent or descent of the lead screw 75 are the same.

Example two

The embodiment provides a method for testing the labyrinth sealing performance of a double gearbox, which uses the test bed 100 for testing the labyrinth sealing performance of the double gearbox in the first embodiment, and comprises the following steps:

s1: the driving motor 1 is started, the load motor 2 is not electrified, the driving motor 1 drives the main test gear box system 3 to rotate, the main test gear box system 3 drives the test-accompanying gear box system 4 to rotate, and the test-accompanying gear box system 4 drives the load motor 2 to rotate, so that no-load tests are performed, the working state of each component is verified, and the test can be performed on the premise that each component can normally work;

s2: keeping the driving motor 1 started, starting the load motor 2, enabling the driving motor 1 to drive the main test gear box system 3 to rotate, enabling the load motor 2 to drive the auxiliary test gear box system 4 to rotate, and changing the output torque of the load motor 2 so as to simulate different resistance forces in the driving process, thereby truly restoring the situation in the driving process and improving the accuracy of the test result; make the experimental platform 5 that inclines drive the inclination of main examination gear box system 3 and accompanying examination gear box system 4 to whether lubricating oil seepage appears in main examination gear box system 3 is observed to the inclination of main examination gear box system 3 when the simulation train curve operation, can improve the accuracy to labyrinth seal performance test.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.

Claims (9)

1. The utility model provides a double gear case labyrinth seal performance test bench which characterized in that: including load motor, driving motor, accompany examination gear box system and the experimental platform of inclining pendulum, load motor can drive accompany examination gear box system and rotate, driving motor is used for driving main examination gear box system and rotates, accompany examination gear box system be used for with main examination gear box system transmission is connected, incline to be used for on the experimental platform of pendulum fix main examination gear box system with accompany examination gear box system, just the angle that presss from both sides between experimental platform of inclining pendulum and the horizontal plane can be adjusted, and drives the relative altitude variation at main examination gear box system axial ascending both ends, and drive accompany the relative altitude variation at the axial both ends of examination gear box system.

2. A dual gearbox labyrinth seal performance test stand according to claim 1, characterized in that: the auxiliary test system comprises a main test gearbox system and an auxiliary test gearbox system, and is characterized by further comprising a torque transmission element, wherein two ends of the torque transmission element are respectively fixed with the main test gearbox system and the auxiliary test gearbox system, and the torque transmission element is used for transmitting torque between the main test gearbox system and the auxiliary test gearbox system.

3. A dual gearbox labyrinth seal performance test stand according to claim 2, characterized in that: the main axle shaft is used for penetrating through a main test gear set, the first main axle box seat is fixed on the tilting test platform, the main universal joint is supported on the tilting test platform through the second main axle box seat, and one end of the torque transmission element is used for being fixedly connected with the main test gear set;

accompany the examination gear box system including accompany the axletree, accompany the universal joint, accompany the examination gear train, first accompany the axletree seat and the axle box seat is accompanied to the second, accompany the both ends of axletree and rotate respectively and install first accompany the axletree seat with the second accompany in the axletree seat, accompany the one end of universal joint with the output shaft fixed connection of load motor, the other end with accompany the one end fixed connection of axletree, accompany the axletree with accompany the gear wheel coaxial fixation of examination gear train, first accompany the axletree seat and fix on the experimental platform of falling pendulum, accompany the universal joint through the second accompany the axletree seat support in on the experimental platform of falling pendulum, accompany the examination gear train with keep away from on the moment of torsion transmission component the one end of owner's examination gear train is fixed.

4. A dual gearbox labyrinth seal performance test stand according to claim 3, characterized in that: the main universal joint is fixedly connected with the driving motor through a main coupler; the accompany universal joint through accompany the shaft coupling with load motor fixed connection.

5. A dual gearbox labyrinth seal performance test stand according to claim 2, characterized in that: the test platform is characterized by further comprising two counter-force supporting seats, wherein the two counter-force supporting seats are fixed on the tilting test platform, are respectively connected with two ends of the torque transmission element in a rotating mode and are used for supporting the torque transmission element.

6. A dual gearbox labyrinth seal performance test stand according to claim 3, characterized in that: the pendulum-tilting test platform is further fixed with a main support and an accompanying support, the main support is used for supporting the main trial gear set and is used for being connected with the main trial gear set in a rotating mode, the accompanying support is located at the lower end of the accompanying trial gear set, the upper end of the accompanying support is connected with the accompanying trial gear set in a rotating mode and is used for supporting the accompanying trial gear set.

7. A dual gearbox labyrinth seal performance test stand according to claim 1, characterized in that: the tilting and swinging test platform comprises a tilting and swinging support seat and a tilting and swinging adjusting assembly, wherein the tilting and swinging support seat is used for supporting the tilting and swinging test platform, and the tilting and swinging adjusting assembly is used for adjusting the inclination angle of the tilting and swinging test platform.

8. A dual gearbox labyrinth seal performance test stand according to claim 7, characterized in that: the tilting test platform is rectangular, the number of the tilting support seats is two, the two tilting support seats are symmetrically arranged on two sides of the tilting test platform, a connecting line between the two tilting support seats is perpendicular to the axis of the main test gear box system, the tilting support seats are rotatably connected with the tilting test platform, and the tilting test platform can rotate around the connecting line between the two tilting support seats;

the four tilting adjusting assemblies are respectively positioned at four corners on the tilting test platform, and the adjusting directions and the adjusting distances of the two tilting adjusting assemblies positioned at the same side of the connecting line between the two tilting supporting seats are the same.

9. A dual gearbox labyrinth seal performance test stand according to claim 8, characterized in that: a rotating shaft is fixed at the position, corresponding to each tilting support seat, of each of the two ends of the tilting test platform, the tilting support seats comprise bases and support tables, the support tables are fixed at the upper ends of the bases, the rotating shafts are rotatably installed at the upper ends of the support tables, and the tilting test platform can rotate around the axis of the rotating shaft;

the utility model discloses a tilting test platform, including base plate, support, lead screw, nut and hand wheel, the lower extreme of support is fixed the bottom plate upper end, the bottom plate with the base parallel and level, the upper end of support is equipped with a through-hole, the lower extreme of lead screw passes the through-hole can contact tilting test platform's up end, the upper end of lead screw with hand wheel fixed connection, nut threaded connection in the periphery of lead screw, just the nut is fixed the upper end of support, the hand wheel can drive the lead screw rotates, and makes the lead screw goes up and down.

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