CN205879483U - Face -to -face double gear case of power machinery closed loop formula exciter test platform that heels - Google Patents

Abstract

The utility model relates to a face -to -face double gear case of power machinery closed loop formula exciter test platform that heels, including the horizontal vibration excitation device of gear box, the face -to -face double gear case of power machinery closed loop heel formula test bench, the vertical vibration excitation device of portal frame, vibration isolation T -slot cast iron basic platform, vibration isolation concrete foundation and be located the system of spring vibration isolator group of vibration isolation concrete foundation lower extreme, use at the closed loop system internal recycling through power, reduced energy consumption, experimental going on just can be maintain to the motor compensated part power that only needs to use the smaller power, has reached the purpose of saving energy, the test bench is the tilting type test bench, can make the gear box transversely and vertically produce certain inclination, and the distribution and the lubricated condition of simulation detection gear case lubricating oil under high speed train curvilinear motion, braking and the condition of acceleration have fine promoting effect to the safe operation that improves high speed train group, the riding comfort who improves high -speed EMUs and the technological development of EMUs.

Description

Power Machinery Closed-loop Face-to-Face Double Gearbox Rolling Vibration Test Bench

technical field

The utility model relates to a test platform for detecting parameters of a transmission system of a rail vehicle, in particular to a power machinery closed-loop face-to-face dual gear box side-tilting excitation test platform.

Background technique

At present, the development of high-speed train technology in my country is advancing by leaps and bounds. The maximum operating speed of the new generation of EMUs has reached 380km/h, and the maximum test speed of the newly developed EMUs is close to 600km/h. The increase of train speed and vehicle axle load has aggravated the impact vibration between the wheel set and the track, and the ride comfort, safety and stability of rail vehicles have become increasingly prominent. As an important part of the rail vehicle bogie, the gearbox is responsible for transmitting the power of the train to the wheelset, and its performance directly affects the performance of the bogie and even the entire train. The working environment of the gearbox is relatively complicated, the load force changes frequently, and it is easy to be fatigued and damaged under high-speed driving and strenuous exercise. Therefore, it is necessary to judge whether the overall performance index of the assembled gearbox meets the reliability requirements through comprehensive test and detection means.

In the actual operation of rail vehicles, the gearbox may be subjected to force and shock vibration in different directions, and its failure may be the superposition of one or more failure modes. Therefore, the reliability of the gearbox can be effectively analyzed only by detecting the fault of the gearbox equipment in the actual operation of the rail vehicle. However, most of the existing detection methods for railway vehicle gearboxes are based on the existing gearbox damage forms and set specific test conditions to analyze the reliability of the gearbox, which cannot truly reflect the actual operation of the gearbox. working environment. At the same time, due to the speed increase of the EMU, the gearbox must be able to meet the reliability requirements under high-speed and high-torque conditions, which puts forward higher requirements for the power of the drive motor of the test bench. Most of the existing gearbox test benches are tested in an open-loop state, which not only needs to provide a large external power, but also causes waste of energy during the test process.

Contents of the invention

The purpose of this utility model is to aim at the deficiencies of the above-mentioned prior art, to provide a power machinery closed-loop face-to-face dual gear box side-tilting excitation test bench, which can simulate the actual running process of a high-speed train for the gearbox reliability test, reducing energy consumption. Waste during testing.

The purpose of this utility model is achieved through the following technical solutions, described as follows in conjunction with the accompanying drawings:

A power machinery closed-loop face-to-face dual gearbox roll-inclining vibration test bench, comprising a gearbox lateral vibration excitation device 1, a power machinery closed-loop face-to-face double-gearbox roll vibration test bench 2, a gantry vertical vibration excitation device 3, an isolation Vibrating T-shaped groove cast iron foundation platform 6, vibration-isolation concrete foundation 7 and vibration-isolation spring group system 8 located at the lower end of vibration-isolation concrete foundation 7; the gearbox lateral vibration excitation device 1, power machinery closed-loop face-to-face double gearbox side tilting The type test bench 2 and the gantry vertical vibration excitation device 3 are fixed on the vibration-isolation T-slot cast iron foundation platform 6, and the vibration-isolation T-slot cast iron foundation platform 6 is fixed on the vibration-isolation concrete foundation 7 by anchor bolts;

The tiltable foundation platform 29 in the power machinery closed-loop face-to-face double gear box tilting test bench 2 is installed on the vibration-isolated T-slot cast iron through four tilting platform adjustment supports and two tilting platform intermediate support seats. On the foundation platform 6; the transverse excitation actuator 21 in the gearbox transverse excitation device 1 passes through the transverse excitation connecting rod device 22 and the axial vibration in the double gearbox roll type test bench 2 facing each other in a closed loop of power machinery The bearing block assembly 39 is connected;

Described gantry vertical vibration excitation device 3 is made up of No. 1 gantry vertical vibration excitation device 13 and No. 2 gantry vertical vibration excitation device 14, and described No. 1 gantry vertical vibration excitation device 13 and 2 The vertical vibration actuator device in the vertical vibration excitation device 14 of the No. The box axle vibration hinge bearing seat device 81 is rotationally connected with the No. 2 tested gear box axle vibration hinge bearing seat device 82;

The power machinery closed-loop face-to-face double gearbox roll type test bench 2 also includes a gearbox rotation power compensation motor device 30, a mechanical torque biaxially loaded gearbox and an actuator device 27 on the same side as the transmission shaft, and a suspension vibration quilt The test gear box group 23 and the test gear box group 28 form a closed-loop system together with the intermediate shaft coupling tube 65.

The front and rear ends of the two sides of the tiltable foundation platform 29 are symmetrically welded with a roll platform adjustment support mounting plate, and the middle position is provided with a roll platform middle support seat installation shaft 73, and the four roll platform adjustment supports are installed The plate is connected with the four roll platform adjustment support bolts fixed on the vibration-isolated T-slot cast iron foundation platform 6, and the installation shaft 73 of the middle support seat of the roll platform is fixed on the vibration-isolated T-slot cast iron foundation platform 6. The middle support base of the tilting platform is rotationally connected.

The tilting platform adjustment support is welded vertically by the vertical plate 31 of the tilting platform adjustment support, the support plate 32 of the tilting platform adjustment support and the installation bottom plate 33 of the tilting platform adjustment support, wherein the tilting platform adjustment The bearing supporting plate 32 is made up of two supporting ribs, and the mounting bottom plate is respectively provided with long through holes for T-shaped bolts to pass through along the long sides of both ends and between the two supporting ribs. The plate 31 is provided with a through T-shaped slot along the vertical direction;

The middle supporting seat of the rolling platform is composed of the rotating shaft mounting hole 34 of the middle supporting seat of the rolling platform, the vertical plate 35 of the middle supporting seat of the rolling platform, the support plate 36 of the middle supporting seat of the rolling platform and the installation bottom plate of the middle supporting seat of the rolling platform 37 is welded, and the mounting bottom plate 37 of the middle support seat of the roll platform is respectively provided with long through holes for T-shaped bolts to pass through along the two long sides;

The inclination angle between the tiltable foundation platform 29 and the vibration-isolation T-slot cast iron foundation platform 6 can be adjusted.

The No. 1 tested gearbox axle vibration hinge bearing seat device 81 in the suspended vibration tested gearbox group 23 is installed inside the No. 1 vibration shaft longitudinal restraint U-shaped seat and the empty spring assembly 61, constraining its transverse and Movement in the longitudinal direction, the No. 1 vibration shaft longitudinally constrains the U-shaped seat and the air spring assembly 61 to provide flexible support for the No. 1 tested gear box axle vibration hinge bearing seat device 81, and the 2 in the suspended vibration tested gear box group 23 The shaft vibration hinge bearing seat device 82 of the tested gear box is installed inside the U-shaped seat for the vertical restraint of the No. The air spring assembly 62 provides flexible support for the shaft vibration hinge bearing seat device 82 of the No. 2 tested gearbox.

The No. 1 vibration axis longitudinally restraining U-shaped seat and the air spring assembly 61 and the No. 2 vibration axis longitudinally restraining U-shaped seat and the air spring assembly 62 both include a U-shaped frame upper connecting plate 119, an air spring assembly 120, C-shaped frame support column 121, C-shaped frame support shaft and pressure plate assembly 122 and hanging bearing seat U-shaped guide rail and gas spring seat 123, described hanging bearing seat U-shaped guide rail and gas spring seat 123 are composed of No. 1 U-shaped limit guide column 124, No. 2 U-shaped limit guide column 125, air spring mounting seat 126 and U-shaped frame mounting base plate 127 are welded U-shaped structural members, No. 1 U-shaped limit guide column 124 and No. 2 The upper end of the U-shaped limit guide column 125 is welded with a connecting plate, the upper end of the No. 2 U-shaped limit guide column 125 is equipped with a C-shaped frame support column 121, the No. 1 U-shaped limit guide column 124 and the No. 2 U-shaped limit A guide plate is respectively welded on the inner side wall of the position guide column 125, and the guide plate makes the shaft vibration hinge bearing seat device 81 of the No. 1 gear box tested and the shaft vibration hinge bearing seat device 82 of the No. To move to, and limit its longitudinal movement; Circular through holes for bolts; two U-shaped bracket upper connecting plates 119 are respectively installed on the upper and lower sides of the No. 1 U-shaped limit guide column 124 and the No. 2 U-shaped limit guide column 125, and the No. Axle vibration hinge bearing device 81 and No. 2 tested gearbox axle vibration hinge bearing device 82 move in the lateral direction, and air spring assembly 120 is installed on air spring mounting seat 126 for supporting the tested gear box axle vibration hinge The bearing seat device can adjust the frequency of vertical excitation by changing the stiffness of the air spring.

The C-shaped frame support shaft and the pressing plate assembly 122 are suspended on the upper end connection plate of the C-shaped frame support column 121 by the C-shaped frame support shaft suspension bolt 128 installed on the C-shaped frame support shaft 131, and can be moved along the C-shaped frame. The vertical direction motion of shape frame support column 121, described C shape frame support shaft 131 is tested gear box C shape frame 63 and in the described suspension type vibration tested gear box group 23 by C shape frame swing connecting rod 132 and The C-shaped frame 64 of the accompanying test gearbox in the accompanying test gearbox group 28 is rotatably connected so that it can tilt left or right to simulate the situation of the gearbox tilting forward or backward when the rail vehicle accelerates or brakes, and detects this condition. Distribution and lubrication condition of gearbox lubricating oil in tilted state.

The rotational speed provided by the gear box rotation power compensation motor device 30 is transmitted to the test gear box 45 in the test gear box group 28, and is transmitted to the mechanical drive shaft assembly 66 synthesized by the ball spline and the cross shaft universal joint. Torque biaxially loads the inside of the actuator device 27 on the same side of the gearbox and the transmission shaft, and then passes through the cardan shaft assembly 69 to the tested gearbox 83 in the suspended vibration tested gearbox group 23, and the tested gearbox The input end of 83 is connected with the input end of the test gear box 45 through the intermediate shaft coupling tube 65;

The rotary power compensating motor 49 in the gearbox rotary power compensation motor device 30 is installed in the gearbox group 28 to accompany the rotation of the gearbox axle 46 through the motor flange conversion shaft and the hydraulic safety coupling assembly 48 On the flange connecting shaft 109 of the power motor; the right end of the gearbox axle 46 is equipped with a No. 1 universal joint flange connection set assembly 70, and the other end of the No. 1 universal joint flange connection set assembly 70 is connected to the universal joint The transmission shaft assembly 69 is connected, and the cardan shaft assembly 69 loads the left side by the mechanical torque in the gear box and the actuator device 27 on the same side of the transmission shaft through the flange type torque speed sensor assembly 68 and the mechanical torque. The large gear shaft assembly 88 is connected, and the flange type torque speed sensor assembly 68 is installed on the tiltable foundation platform 29 through the flange type torque speed sensor assembly mounting seat 80; the mechanical torque biaxial loading gear The mechanical torque in the actuator device 27 on the same side of the box and the transmission shaft loads the right large gear shaft assembly 87 through the ball spline and the cross shaft universal joint. The No. 2 universal joint flange connection set assembly 85 at the right end of the tested gear box axle 84 in the box group 23 is connected; The test accompanying gearbox 45 is arranged face to face, and the input ends of the two are connected through the input shaft coupling tube 65, the suspended vibration test gearbox group 23 and the test gearbox group 28 constitute a closed-loop system, and the mechanical torque biaxially loads the gear The actuator device 27 on the same side of the box and the transmission shaft is used to load torque for the system, and the power compensation motor 49 is used to provide the system with rotational speed.

The mechanical torque dual-axis loading gearbox and the actuator device 27 on the same side of the transmission shaft are two-stage gearboxes, including a mechanical loading gearbox casing 67, a mechanical torque loading actuator and a push-pull shaft assembly 86, and a mechanical torque loading actuator. Load the right large gear shaft assembly 87, mechanical torque load the left large gear shaft assembly 88, mechanical torque load the intermediate gear shaft assembly 89, No. 1 mechanical torque load the gear box large shaft end cover 90, and No. 2 mechanical torque load Gearbox large shaft end cover 91, No. 3 mechanical torque loading gearbox large shaft end cover 93 and No. 4 mechanical torque loading gearbox large shaft end cover 94;

The No. 1 mechanical torque-loaded gearbox large shaft end cover 90 and the No. 2 mechanical torque-loaded gearbox large shaft end cover 91 are installed on the outer two ends of the shaft box of the mechanical torque-loaded right large gear shaft assembly 87, and the No. 3 Mechanical torque loading gear box large shaft end cover 93 and No. 4 mechanical torque loading gear box large shaft end cover 94 are installed on the two ends outside the axle box of mechanical torque loading left large gear shaft assembly 88, mechanical torque loading actuator and The push-pull shaft assembly 86 is connected with the mechanical torque-loaded intermediate gear shaft assembly 89, and is installed on the tiltable foundation platform 29 through the mechanical torque-loaded actuator mount 78;

The mechanical torque loaded left bull gear 95 in the mechanical torque loaded left bull gear shaft assembly 88 meshes with the No. 1 intermediate pinion 105 in the mechanical torque loaded intermediate gear shaft assembly 89, and the mechanical torque loaded The No. 2 intermediate pinion 106 in the intermediate gear shaft assembly 89 meshes with the mechanical torque loaded right large gear 92 in the mechanical torque loaded right large gear shaft assembly 87, and the mechanical torque loaded left large gear 95 1. Mechanical torque loads the right large gear 92, No. 1 middle pinion 105 and No. 2 middle pinion 106 are all helical gears, and the mechanical torque load actuator changes the axial direction of the mechanical torque load middle gear shaft assembly 89 through the push-pull shaft Position, so that the meshing position of the left and right large gears and the middle small gear changes. During the meshing movement of the two-stage gears, torques in opposite directions are generated on the left and right large gears. The servo valve control system on the actuator can be The axial displacement of the intermediate gear shaft is detected and adjusted in real time, and then the internal power of the closed-loop system can be changed in real time, which improves the validity and reliability of the test.

Compared with the prior art, the beneficial effects of the utility model are:

1. The test bench includes a suspended vibration tested gearbox group and an accompanying gearbox group. The suspended vibration tested gearbox and the accompanying gearbox are connected face-to-face. Suspension vibration tested gearbox is subjected to vertical excitation and lateral excitation, which can accurately simulate the radial and axial loads on the gearbox under actual working conditions and the vibration of high-speed trains running on actual lines. Realistically reproduces the vibrations experienced by rail vehicle gearboxes during operation. The accompanying gearbox group is in a stable test state, and the comparison test is carried out at the same time as the suspended vibration tested gearbox, which not only reduces the number of tests, but also ensures the correctness and authenticity of the gearbox reliability parameter test results.

2. The mechanical torque dual-axis loading gearbox of this test bench and the actuator device on the same side of the transmission shaft connect the suspended vibration test gearbox and the accompanying test gearbox group together to form a mechanical closed-loop system. The mechanical torque biaxial Under the action of the actuator, the loaded gearbox can generate a large mechanical torque inside the closed-loop system, which not only simulates the very large torque output by the traction motor of the train, but also makes the power circulate in the closed-loop system. The test bench only needs to use a smaller power motor to compensate part of the power to maintain the test, and achieve the purpose of saving energy.

3. This test bench is a tiltable test bench, which can make the gearbox have a certain inclination angle in the horizontal direction and the longitudinal direction, and simulate and detect the distribution and lubrication condition.

4. Mechanical Torque The dual-axis loaded gearbox can generate a large mechanical torque inside the closed-loop system with a small axial displacement of the intermediate pinion shaft. Its small stroke and large torque can make the test results more accurate.

5. This test bench truly reproduces the harsh working environment of the gearbox in the actual operation of the train, and solves the problem that the existing test bench cannot truly reflect the reliability of the gearbox.

6. This test bench can realize the gearbox reliability test within a large speed and torque range, which can fully meet the reliability test of the new generation of high-speed EMU gearboxes in my country. The structure design is compact and reasonable, and self-protection devices are installed. Easy maintenance.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is an axonometric view of the overall layout of the utility model power machinery closed-loop face-to-face double gear box side tilting vibration test bench;

Fig. 2 is an axonometric view of the power machinery closed-loop face-to-face dual gear box side-tilting excitation test bench of the utility model;

Fig. 3 is the left side view of the (no concrete foundation) of the utility model power machinery closed-loop face-to-face dual gear box side-tilting vibration test bench;

Fig. 4 is the front view of the (no concrete foundation) of the utility model power machinery closed-loop face-to-face dual gear box side-tilting vibration test bench;

Fig. 5 is the partial structural view of the (no concrete foundation) of the utility model power machinery closed-loop face-to-face dual gear box side-tilting vibration test bench;

Fig. 6 is an axonometric projection view of the tilting platform adjustment support of the utility model power machinery closed-loop face-to-face dual gear box tilting vibration test bench;

Fig. 7 is an axonometric projection view of the middle support seat of the tilting platform of the utility model power machinery closed-loop face-to-face dual gear box tilting vibration test bench;

Fig. 8 is an axonometric projection view of the power machinery closed-loop face-to-face dual-gearbox roll-excitation test bench of the utility model and the vibration-exciting device;

Fig. 9 is an axonometric projection view of the lateral excitation connecting rod device of the utility model power machinery closed-loop face-to-face dual gear box side-tilting vibration test bench;

Fig. 10 is an axonometric projection view of the axial vibration bearing seat assembly of the utility model power machinery closed-loop face-to-face dual gear box side-tilt vibration test bench;

Fig. 11 is a front view and a cross-sectional view of the axial vibration bearing seat assembly of the utility model power machinery closed-loop face-to-face dual gear box side-tilt vibration test bench;

Fig. 12 is an axonometric projection view of the power machinery closed-loop face-to-face dual-gearbox roll-excited vibration test bench of the utility model;

Fig. 13 is a left side view of the power machinery closed-loop face-to-face dual-gearbox roll-excited vibration test bench of the utility model;

Fig. 14 is a view of the assembly relationship of the power machinery closed-loop face-to-face dual gear box side-to-side tilting vibration test bench of the utility model;

Fig. 15 is a schematic diagram of the power machinery closed-loop face-to-face dual gear box closed-loop relationship of the utility model power machine closed-loop face-to-face dual gear box side-tilting vibration test bench;

Fig. 16 is a top projection view of the mechanical torque dual-axis loading gearbox (without box) and the actuator device on the same side of the transmission shaft of the utility model power machinery closed-loop face-to-face dual gearbox side tilting vibration test bench;

Fig. 17 is an axonometric projection view of the left large gear shaft assembly of the utility model power machinery closed-loop face-to-face dual gear box side-tilt vibration test bench;

Fig. 18 is an axonometric projection view of the mechanical torque loaded intermediate gear shaft assembly of the utility model power machinery closed-loop face-to-face dual gear box side-tilting vibration test bench;

Fig. 19 is a projected view of the end cover of the push-pull sleeve end cover of the intermediate gear shaft loaded by mechanical torque of the power machinery closed-loop face-to-face dual gear box side-tilting vibration test bench of the utility model;

Fig. 20 is an axonometric projection view of the input shaft coupling tube of the utility model power machinery closed-loop face-to-face dual gear box side-tilt vibration test bench;

Fig. 21 is an axonometric projection view of the axle of the accompanying test gear box of the power machinery closed-loop face-to-face dual gear box side-tilt vibration test bench of the utility model;

Fig. 22 is an axonometric projection view of the tested gear box of the utility model power machinery closed-loop face-to-face dual gear box side-tilting vibration test bench;

Fig. 23 is an axonometric projection view of the vibration axis longitudinal restraint U-shaped seat and the air spring assembly of the utility model power machinery closed-loop face-to-face dual gear box side-tilting vibration test bench;

Fig. 24 is an axonometric projection view of the U-shaped guide rail of the suspension bearing seat and the gas spring seat of the utility model power machinery closed-loop face-to-face double gear box side-tilting vibration test bench;

Fig. 25 is an axonometric projection view of the C-shaped frame support shaft and the pressure plate assembly of the utility model power machinery closed-loop face-to-face dual gear box side-tilt vibration test bench;

Fig. 26 is an axonometric projection view of the C-frame swing connecting rod of the utility model power machinery closed-loop face-to-face dual gear box side-tilting vibration test bench;

In the figure: Ⅰ. Power machinery closed-loop face-to-face double gear box side-tilt excitation test bench Ⅱ. Test bench foundation Ⅲ. Exciting actuator oil source cooling system Ⅳ. Exciting actuator oil source system 1. Transverse excitation of gearbox Device 2. Power mechanical closed-loop face-to-face dual gear box tilting test bench 3. Gantry vertical vibration device 4. Longitudinal beam device on No. 1 gantry 5. Longitudinal beam device on No. 2 gantry 6. Vibration isolation T-slot cast iron foundation platform 7. Vibration-isolation concrete foundation 8. Vibration-isolation spring group system 9. Lateral actuator reaction support No. 10.1 Roll platform adjustment support No. 11.2 Roll platform adjustment support No. 12.3 Roll platform adjustment support No. 13.1 Gantry Frame vertical vibration device 14.2 Gantry vertical vibration device 15. Gantry upper longitudinal beam 16. Gantry upper longitudinal beam hinge seat assembly 17.1 Gantry upper beam 18.1 Gantry column 19.2 Gantry column 20.4 side Tilting platform adjustment support 21. Transverse excitation actuator 22. Transverse excitation linkage device 23. Suspended vibration gear box group 24.3 Gantry column 25.2 Gantry upper beam 26.4 Gantry column 27. Mechanical torque biaxial Actuator device on the same side as the loading gearbox and transmission shaft 28. Accompanying test gearbox group 29. Rollable foundation platform 30. Gearbox rotation power compensation motor device 31. Rolling platform adjustment support vertical plate 32. Rolling platform Adjusting support support plate 33. Roll platform adjustment support mounting base plate 34. Rolling platform middle support seat rotation shaft mounting hole 35. Roll platform middle support seat vertical plate 36. Roll platform middle support seat support plate 37. Side Tilting platform intermediate support seat installation bottom plate 38. Transverse excitation connecting rod 39. Axial vibration bearing seat assembly No. 40.1 Vertical excitation actuator connecting rod device No. 41.1 Vertical excitation actuator device No. 42.2 Vertical excitation actuator Connecting rod device No. 43.2 Vertical excitation actuator device No. 44.1 Axle bearing seat device of accompanying test gearbox Lan conversion shaft and hydraulic safety coupling assembly 49. Rotary power compensation motor 50. Transverse excitation connecting rod earring 51. Transverse excitation connecting rod body 52. No. 1 excitation connecting rod earring 53. No. 2 excitation connecting rod earring 54. Shaft Axial vibration bearing seat left tile 55. Axial vibration bearing seat left tile pin shaft 56. Axial vibration bearing seat right tile 57. Axial vibration bearing seat right tile pin shaft 58. Axial vibration bearing seat 59. Axial vibration bearing No. 60.3 Rolling platform adjustment support mounting plate 61.1 Vibration shaft longitudinal restraint U-shaped seat and empty spring assembly 62.2 Vibration shaft longitudinal restraint U-shaped seat and empty spring assembly 63. Tested gearbox C-shaped frame 64. Accompanying gear Box C frame 65. Input shaft coupling tube 66. Drive shaft assembly composed of ball spline and cross shaft universal joint 67. Mechanically loaded gear Box body 68. Flange torque speed sensor assembly 69. Universal drive shaft assembly No. 70.1 Universal joint flange connection set assembly No. 71.1 Accompanying test gearbox axle bearing seat No. 72.2 Accompanying test gearbox axle bearing Seat 73. Rolling platform intermediate support seat mounting shaft No. 74.1 Rolling platform adjustment support mounting plate 75. Rotary power compensation motor mounting seat No. 76.1 Accompanying test gearbox axle bearing seat increased height and widening support mounting seat No. 77.2 Accompanying test gearbox Axle bearing seat heightened and widened support mounting seat 78. Mechanical torque loading actuator mounting seat No. 79.2 Roll platform adjustment support mounting plate 80. Flange torque speed sensor assembly mounting seat No. 81.1 Tested gear box axle vibration Hinge bearing seat device No. 82.2 Tested gear box axle vibration hinge bearing seat device 83. Tested gear box 84. Tested gear box axle No. 85.2 Universal joint flange connection set assembly 86. Mechanical torque loading actuator and push-pull Shaft device 87. Mechanical torque loads the right large gear shaft assembly 88. Mechanical torque loads the left large gear shaft assembly 89. Mechanical torque loads the intermediate gear shaft assembly No. 90.1 Mechanical torque loads the gear box large shaft end cover No. 91.2 Machinery Torque loaded gearbox large shaft end cover 92. Mechanical torque loaded right large gear 93.3 Mechanical torque loaded gearbox large shaft end cover 94.4 Mechanical torque loaded gearbox large shaft end cover 95. Mechanical torque loaded left large gear 96. Universal joint flange and cross shaft assembly 97. Universal joint and large gear shaft connection plate 98. Mechanically loaded gearbox large gear shaft 99. No. 1 large gear shaft bearing 100. No. 2 large gear shaft bearing 101. Large gear and shaft coupling shaft Sleeve 102. Intermediate gear shaft push-pull sleeve end cover 103. Intermediate gear shaft push-pull sleeve 104. Intermediate gear shaft 105. No. 1 intermediate pinion 106. No. 2 intermediate pinion 107. Intermediate gear shaft push-pull sleeve end cover earring 108. Intermediate gear shaft push-pull sleeve end Cover connection plate 109. Rotary power motor flange connection shaft No. 110.1 Accompanying test gearbox axle bearing installation shaft 111. Accompanying test gearbox installation shaft 112.2 Accompanying test gearbox axle bearing installation shaft No. 113.1 Universal joint flange connection set Ligand installation shaft 114. Axial vibration bearing installation shaft No. 115.1 Tested gearbox shaft vibration hinge bearing seat installation shaft No. 116.2 Tested gear box axle vibration hinge bearing seat installation shaft 117. Tested gearbox installation shaft No. 118.2 Universal Section flange connection set assembly mounting shaft 119. U-shaped frame upper connecting plate 120. Air spring assembly 121. C-shaped frame support column 122. C-shaped frame support shaft and pressure plate assembly 123. Hanging bearing seat U-shaped guide rail With air spring seat No. 124.1 U-shaped limit guide column 125.2 No. U-shaped limit guide column 126. Air spring mounting seat 127. U-shaped frame mounting base plate 128. C-shaped frame support shaft suspension bolt 129. C-shaped frame support Support shaft and pressure plate assembly bolts 130. C-shaped frame support shaft pressure plate 131. C-shaped frame support shaft 132. C-shaped frame swing connecting rod 133. C-shaped frame support shaft installation hole 134. C-shaped frame pin shaft installation hole.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in further detail:

The purpose of this utility model is to provide a power machinery closed-loop face-to-face dual gear box side-tilting vibration test bench, which solves the problem that it is difficult to carry out gearbox reliability tests in the actual operation of existing rail vehicles, so as to meet the needs of rail vehicles in various operations. The need for reliability parameter detection under working conditions.

As shown in Figure 1, the power machinery closed-loop face-to-face double gear box tilting vibration excitation test bench I and the test bench foundation II, the oil source cooling system III of the excitation actuator and the oil source system of the excitation actuator described in the utility model Ⅳ is used in conjunction with measurement and control system Ⅴ.

The test bench foundation II is used to provide an installation foundation for the entire power machinery closed-loop face-to-face dual gearbox roll-excited vibration test bench.

The vibration actuator oil source cooling system III is used to cool the hydraulic oil source system of the entire power machinery closed-loop face-to-face double gearbox roll vibration excitation test bench, so as to ensure that the hydraulic oil source system is in a normal working environment.

The vibration actuator oil source system IV is used to provide hydraulic oil for the hydraulic actuators of the entire power machinery closed-loop face-to-face double gearbox roll vibration excitation test bench.

As shown in Fig. 2 to Fig. 4, the power machinery closed-loop face-to-face dual gearbox roll-excitation test bench of the utility model includes a gearbox transverse vibration excitation device 1, a power machinery closed-loop face-to-face double-gearbox roll exciter test bench 2, Gantry vertical vibration excitation device 3, No. 1 gantry column 18, No. 2 gantry column 19, vibration-isolation T-slot cast iron foundation platform 6, vibration-isolation concrete foundation 7 and vibration-isolation spring group system 8.

The vibration-isolation T-slot cast iron foundation platform 6 is a cast iron structure, and is fixedly connected to the vibration-isolation concrete foundation 7 by anchor bolts. Under the vibration-isolation concrete foundation 7, several sets of vibration-isolation spring group systems 8 are arranged to reduce the damage of the foundation vibration to the test bench and the influence on the test results, and also provide a good test environment for the staff; the vibration-isolation T-slot cast iron The upper surface of the basic platform 6 is evenly provided with several parallel T-shaped grooves, which can facilitate the installation and positioning of the test equipment when performing related tests and adjust the position of the test equipment according to the test needs. The gearbox lateral vibration excitation device 1 is fixed on the left end of the vibration-isolation T-slot cast iron foundation platform 6 through T-shaped bolts; the gantry vertical vibration excitation device 3 includes No. 1 gantry vertical vibration excitation device 13 and No. 2 Gantry vertical vibration device 14, No. 1 gantry vertical vibration device 13 passes through No. 1 gantry column 18 and No. 2 gantry column 19, and No. 2 gantry vertical vibration device 14 passes through No. 3 gantry The column 24 and the No. 4 gantry column 26 are fixed and installed on the vibration-isolation T-slot cast iron foundation platform 6 side by side; the longitudinal beam device 4 on the No. 1 gantry and the longitudinal beam device 5 on the No. 2 gantry pass through the gantry The upper longitudinal beam hinge seat assembly 16 is installed side by side on the two ends of the No. 1 gantry upper beam 17 and the No. 2 gantry upper beam 25; the No. 1 gantry vertical vibration device 13 in the gantry vertical vibration device 3 and No. 2 gantry vertical vibration device 14 respectively through the vertical vibration actuator connecting rod device and the tested gear box axle vibration hinge bearing device to rotate; The type test bench 2 is installed on the vibration-isolation T-slot cast iron foundation platform 6 through 4 roll platform adjustment supports and 2 roll platform intermediate support bases 11, among which the structure of the 4 roll platform adjustment supports is exactly the same, 1 The No. 1 roll platform adjustment support 10 and the No. 2 roll platform adjustment support 11 are respectively installed on the same side of the same side on the tiltable foundation platform 29 by bolts. The No. 1 roll platform adjustment support mounting plate 74 and the No. 2 roll platform On the adjustment support mounting plate 79, the No. 1 roll platform adjustment support 10 and the No. 3 roll platform adjustment support 12 are symmetrically installed on both sides of the tiltable foundation platform 29, and the No. 2 roll platform adjustment support 11 and The No. 4 tilting platform adjustment support 20 is symmetrically installed on both sides of the tiltable foundation platform 29, the structure of the middle support seat of the two tilting platforms is exactly the same, and the middle support of the tilting platform symmetrically installed on the tiltable foundation platform 29 The seat is installed on the shaft 73 and is connected by rotation. The adjustment support of the roll platform and the middle support seat of the roll platform are used to make the power machinery closed-loop face-to-face double gearbox roll test bench 2 produce a certain inclination along the axial direction of the test axle. angle.

As shown in Figure 6, the tilting platform adjustment support is vertically welded by the vertical plate 31 of the tilting platform adjustment support, the support plate 32 of the tilting platform adjustment support and the mounting base plate 33 of the tilting platform adjustment support. Among them, the support plate 32 of the tilting platform adjustment support is composed of two support ribs, and the installation bottom plate is respectively provided with several long passages for T-bolts to pass through along the long sides of both ends and between the two support ribs. Holes, the vertical plate 31 of the tilting platform adjustment support is provided with 3 through T-shaped slots along the vertical direction, the tilting platform adjustment support is installed with the roll platform adjustment support on the tiltable foundation platform 29 through T-shaped bolts The plate is connected, and the position of the tiltable foundation platform 29 can be adjusted as required.

As shown in Figure 7, the middle support seat of the roll platform is supported by the rotation shaft mounting hole 34 of the middle support seat of the roll platform, the vertical plate 35 of the middle support seat of the roll platform, the support plate 36 of the middle support seat of the roll platform and the middle support of the roll platform. Seat installation bottom plate 37 is welded, and the middle support seat installation bottom plate 37 of the roll platform is respectively provided with several long through holes for T-shaped bolts to pass through along the two long sides, so that the middle support seat of the roll platform is fixed and installed in the vibration-isolation T-shaped groove On the cast iron foundation platform 6, the intermediate support seat of the rolling platform is rotationally connected with the mounting shaft 73 of the intermediate support seat of the rolling platform on the tiltable foundation platform 29 through the rotating shaft mounting hole 34 of the intermediate support seat of the rolling platform, and is adjusted by the rolling platform. The support can adjust the mechanical closed-loop face-to-face dual gearbox roll test bench 2 to tilt a certain angle around the middle support seat of the roll platform to simulate the inclination of the gearbox when the rail vehicle makes a curved motion in actual operation.

As shown in Fig. 5 and Fig. 8 to Fig. 14, the mechanical closed-loop face-to-face double gearbox roll type test bench 2 includes a suspended vibration tested gearbox group 23, an accompanying test gearbox group 28, and a tiltable foundation. The platform 29, the gear box rotation power compensation motor device 30, and the actuator device 27 on the same side of the gear box and the transmission shaft as the mechanical torque biaxially loaded gear box.

Described accompanying test gearbox group 28 comprises No. 1 accompanying test gearbox axle bearing seat device 44, accompanying test gearbox 45, accompanying test gearbox axle 46, No. 2 accompanying test gearbox axle bearing seat device 47 and accompanying test gear Box C-shaped frame 64. No. 1 accompanying test gearbox axle bearing seat 71 in No. 1 accompanying test gearbox axle bearing seat device 44 and No. 1 accompanying test gearbox axle bearing seat in No. 2 accompanying test gearbox axle bearing seat device 47 Bearing housing 72 is respectively installed on No. 1 accompanying test gearbox axle bearing installation shaft 110 and No. 2 accompanying test gearbox axle bearing installation shaft 112 on the accompanying test gearbox axle 46, and passes through No. 1 accompanying test gearbox axle bearing respectively. The height-increased and widened support mounting seat 76 and the height-increased and widened support mounting seat 77 of the axle bearing seat of the No. 2 accompanying gearbox are fixedly installed on the tiltable foundation platform 29; the accompanying test gearbox 45 is installed on the accompanying test gearbox axle 46 Accompanied by the test gear box on the mounting shaft 111, the accompanying test gear box C-shaped frame 64 is installed on the outer shell of the test gear box 45 input ends.

The suspended vibration tested gearbox group 23 includes an axial vibration bearing seat assembly 39, No. 1 tested gearbox axle vibration hinge bearing seat device 81, No. 2 tested gearbox axle vibration hinge bearing seat device 82, The tested gearbox 83, the tested gearbox axle 84, the No. 1 vibration axis longitudinal restraint U-shaped seat and the empty spring assembly 61, the No. 2 vibration shaft longitudinal restraint U-shaped seat and the empty spring assembly 62, and the tested gearbox C Shape frame 63.

The transverse actuator reaction support 9 in the gearbox transverse excitation device 1 is connected to the vibration-isolated T-slot cast iron foundation platform 6 through T-shaped bolts, and the transverse excitation actuator 21 is installed on the transverse actuator reaction support 9 Inside, through the rotation connection of the transverse excitation connecting rod device 22 and the axial vibration bearing seat assembly 39, the excitation vibration in the transverse direction is generated to the tested gear box 83; the No. 1 vertical vibration device in the No. The vibration excitation actuator device 41 is connected and installed on the shaft vibration hinge bearing seat device 81 of the gear box under test No. 1 through the No. 1 vertical vibration actuator linkage device 40, and the vertical vibration excitation device 14 of the No. 2 gantry The No. 2 vertical excitation actuator device 43 is connected and installed on the No. 2 tested gear box axle vibration hinge bearing seat device 82 through the No. 2 vertical vibration excited actuator connecting rod device 42, which produces a vertical vibration to the tested gear box axle 84. Excitation in the direction; No. 1 tested gear box shaft vibration hinge bearing device 81 is installed inside the No. 1 vibration shaft longitudinal restraint U-shaped seat and air spring assembly 61 to constrain its lateral and longitudinal movement. No. 1 The vibration shaft longitudinally restrains the U-shaped seat and the air spring assembly 120 in the air spring assembly 61 flexibly supports the axle vibration hinge bearing seat device 81 of the No. 1 gear box tested, and the axle vibration hinge bearing seat device 82 of the No. 2 gear box tested Installed inside the No. 2 vibration shaft longitudinally restricting the U-shaped seat and the air spring assembly 62 to constrain its movement in the lateral and longitudinal directions. The No. 2 vibration shaft longitudinally restrains the U-shaped seat and the air spring assembly in the air spring assembly 62 120 pairs of No. 2 tested gearbox shaft vibration hinge bearing seat device 82 are flexibly supported, and the frequency of vertical excitation can be adjusted by changing the stiffness of the air spring.

The transverse excitation connecting rod 38 is welded by the tubular structure and the connecting plate, including the transverse excitation connecting rod earring 50, the transverse excitation connecting rod body 51, the No. 1 excitation connecting rod earring 52 and the No. 2 excitation connecting rod earring 53 , wherein the transverse exciting connecting rod earring 50 is welded on the transverse exciting connecting rod body 51 and connected with the connecting pin on the transverse actuator 21, the No. 1 exciting connecting rod earring 52 and the No. 2 exciting connecting rod earring 53 Installed on the transverse vibration connecting rod body 51 through bolt connection, respectively connected with the left tile pin 55 of the axial vibration bearing seat 58 and the right shoe pin 57 of the axial vibration bearing seat 58; the axial vibration bearing seat 58 includes the left tile 54 of the axial vibration bearing seat and the right tile 56 of the axial vibration bearing seat. The two are connected together by bolts to form a drum-shaped structure. On the vibration bearing installation shaft 114.

The gear box rotation power compensation motor device 30 is installed on the left end of the tiltable foundation platform 29 through the rotation power compensation motor mounting seat 75, and the rotation power compensation motor 49 converts the shaft and the hydraulic safety coupling assembly 48 through the motor flange Installed on the rotary power motor flange coupling shaft 109 on the axle 46 of the accompanying test gearbox; the right end of the axle 46 of the accompanying test gearbox is installed with the No. 1 universal joint flange connection set assembly 70 and the No. 1 universal joint flange The other end of the coupling sleeve assembly 70 is connected with the universal joint shaft assembly 69, and the universal joint shaft assembly 69 is connected to the same side of the mechanical torque dual-axis loading gearbox and the transmission shaft through the flange type torque speed sensor assembly 68. The mechanical torque in the actuator device 27 loads the left large gear shaft assembly 88, and the flange torque speed sensor assembly 68 is installed on the tiltable foundation platform 29 through the flange torque speed sensor assembly mounting seat 80. Above: the mechanical torque dual-axis loading gearbox and the actuator device 27 on the same side of the transmission shaft are two-stage gearboxes, and the mechanical torque loads the transmission of the right large gear shaft assembly 87 through ball splines and cross shaft universal joints. The shaft assembly 66 is connected with the No. 2 universal joint flange connection set assembly 85, and the No. 2 universal joint flange connection set assembly 85 is installed on the right end of the tested gearbox axle 84; the accompanying test gearbox 45 and the tested The gear boxes 83 are arranged face-to-face, and the input ends of the two are connected through the input shaft coupling tube 65, so that a closed-loop system is formed between the suspended vibration test gear box group 23 and the test gearbox group 28, and the mechanical torque biaxial Loading the actuator device 27 on the same side as the gear box and the drive shaft can load the system with torque, and the power compensation motor 49 provides the system with a rotating speed, so that the power can be recycled in the system, and only a small power motor is needed to maintain the entire system. The conduct of the test greatly saves energy.

As shown in Figure 15, the schematic diagram of the closed-loop relationship between the face-to-face dual gearboxes in the closed-loop power machinery, the suspended vibration test gearbox group 23, the test gearbox group 28, the mechanical torque dual-axis loading gearbox and the same side of the transmission shaft. The actuator device 27 and the intermediate shaft coupling tube 65 constitute a closed-loop system. The rotational speed provided by the motor is transmitted to the accompanying gear box 45, and transmitted to the mechanical torque through the transmission shaft assembly 66 composed of the ball spline and the cross shaft universal joint. The inside of the actuator device 27 on the same side of the double-axis loaded gearbox and the transmission shaft is transmitted to the tested gearbox 83 through the cardan shaft assembly 69, and the input end of the tested gearbox 83 is connected to the intermediate shaft coupling tube 65 and The input ends of the accompanying test gear box 45 are connected together. The mechanical torque dual-axis loading gearbox and the actuator device 27 on the same side of the transmission shaft are two-stage gearboxes, and the power is transmitted from the mechanical torque loading left large gear 95 to the No. 1 intermediate pinion 105 and No. 2 intermediate pinion 106. No. intermediate pinion 106; mechanical torque loads the left bull gear 95, mechanical torque loads the right bull gear 92, No. 1 intermediate pinion 105 and No. 2 intermediate pinion 106 are helical gears. According to the principle of gear meshing, changing the meshing position of the two small gears on the intermediate shaft and the left and right large gears can generate a certain amount of torque in the opposite direction on the left and right large gears, and realize the mechanical loading of the closed-loop system. Under the action, the mechanically loaded power will be recycled in the closed-loop system, thereby reducing the demand for external energy. It is only necessary to use a smaller power rotating compensation motor to compensate part of the power. Due to the mechanical loading, the power is greatly saved. Energy; a servo valve is installed on the mechanically loaded actuator, which can monitor and adjust the displacement of the pinion on the intermediate shaft at any time, and then adjust the power inside the closed-loop system, which improves the convenience and accuracy of the reliability test of the gearbox sex.

As shown in Figures 16 to 19, the actuator device 27 on the same side of the mechanical torque dual-axis loaded gearbox and the transmission shaft includes a mechanically loaded gearbox case 67, a mechanical torque loaded actuator and push-pull shaft assembly 86, a mechanical torque Load the right large gear shaft assembly 87, mechanical torque load the left large gear shaft assembly 88, mechanical torque load the intermediate gear shaft assembly 89, No. 1 mechanical torque load the gear box large shaft end cover 90, and No. 2 mechanical torque load The gear box big shaft end cover 91, No. 3 mechanical torque loading gear box big shaft end cover 93 and No. 4 mechanical torque loading gear box big shaft end cover 94.

The mechanical torque loaded right large gear shaft assembly 87 and the mechanical torque loaded left large gear shaft assembly 88 are similar in structure, both including the universal joint flange and the cross shaft assembly 96, the universal joint and the large gear shaft connecting plate 97 1. Mechanical loading gear box large gear shaft 98, No. 1 large gear shaft bearing 99, No. 2 large gear shaft bearing 100 and large gear and shaft coupling sleeve 101, only the right large gear 92 is loaded by mechanical torque and the left side is loaded by mechanical torque There are differences in the mounting positions of the bull gear 95. The large shaft end cover 90 of the No. 1 mechanical torque loading gearbox and the large shaft end cover 91 of the No. 2 mechanical torque loading gearbox are installed on the outer two ends of the axle box of the large gear shaft assembly 87 on the right side of the mechanical torque loading, and the No. 3 mechanical torque loading The gear box big shaft end cover 93 and No. 4 mechanical torque loaded gear box big shaft end cover 94 are installed on the two ends outside the axle box of the left side big gear shaft assembly 88 loaded by mechanical torque.

Mechanical torque loaded intermediate gear shaft assembly 89 includes intermediate gear shaft push-pull sleeve end cover 102 , intermediate gear shaft push-pull sleeve 103 , intermediate gear shaft 104 , No. 1 intermediate pinion 105 and No. 2 intermediate pinion 106 . The intermediate gear shaft push-pull sleeve 103 is installed on one end of the intermediate gear shaft 104, and is connected with the intermediate gear shaft push-pull sleeve end cover coupling plate 108 of the intermediate gear shaft push-pull sleeve end cover 102 by bolts; the mechanical torque load actuator and the push-pull shaft assembly 86 is connected with the end cover earring 107 of the intermediate gear shaft push-pull sleeve, and is installed on the tiltable foundation platform 29 through the mechanical torque loading actuator mounting seat 78; the No. 1 intermediate pinion 105 meshes with the mechanical torque loading left large gear 95 , the No. 2 intermediate pinion 106 meshes with the mechanical torque-loaded right large gear 92; the mechanical torque-loaded actuator in the push-pull shaft assembly 86 changes the mechanical torque-loaded intermediate gear shaft assembly through the push-pull shaft The axial position of 89 changes the meshing position between the left and right large gears and the middle small gear. During the meshing movement of the two-stage gears, torques in opposite directions are generated on the left and right large gears. The servo on the actuator The valve control system can detect and adjust the axial displacement of the intermediate gear shaft in real time, and then realize the real-time change of the internal power of the closed-loop system, which improves the effectiveness and reliability of the test.

As shown in Figure 20, the intermediate coupling tube 65 is a circular tubular structural member, and the two ends are respectively end-face teeth connected with the gear-drum couplings at the input ends of the tested gear box 83 and the test gear box 45. A number of bolt holes are respectively provided in the circumferential direction of the end face teeth for connection with the gear-drum coupling at the input end.

As shown in Figures 23 to 26, the No. 1 vibration axis longitudinal restraint U-shaped seat and the empty spring assembly 61 and the No. 2 vibration axis longitudinal restraint U-shaped seat and the empty spring assembly 62 have the same structure, both including the U-shaped frame Connecting plate 119, air spring assembly 120, C-shaped frame support column 121, C-shaped frame support shaft and pressure plate assembly 122, and suspension bearing seat U-shaped guide rail and air spring seat 123.

The U-shaped guide rail of the suspension bearing seat and the air spring seat 123 are U-shaped structural parts, consisting of No. 1 U-shaped limit guide column 124, No. 2 U-shaped limit guide column 125, air spring mounting seat 126, and U-shaped frame mounting base plate 127 welded, the No. 1 U-shaped limit guide column 124 and the No. 2 U-shaped limit guide column 125 are square steel pipe-shaped structures, and the upper end is welded with a connecting plate, and the upper end connecting plate of the No. 2 U-shaped limit guide column 125 There are several threaded holes for installing the C-shaped frame support column 121, and the inner walls of No. 1 U-shaped limit guide column 124 and No. 2 U-shaped limit guide column 125 are respectively provided with guide plates by welding. The guide plate makes the shaft vibration hinge bearing seat device 81 of the tested gearbox No. 1 and the shaft vibration hinge bearing seat device 82 of the tested gearbox No. 2 move in the vertical direction under the action of exciting vibration, and restricts their longitudinal movement; U-shaped The frame installation base plate 127 is a rectangular connecting plate, which is fixedly welded on the bottom ends of No. 1 U-shaped limit guide column 124 and No. 2 U-shaped limit guide column 125, and several circular holes for installing bolts are respectively arranged along the long side direction. Through hole; between No. 1 U-shaped limit guide column 124 and No. 2 U-shaped limit guide column 125, a circular base for installing air spring assembly 120 is welded on the U-shaped frame mounting base plate 127; two U-shaped The connecting plate 119 on the frame is respectively installed on the front and rear sides of the upper end of the No. 1 U-shaped limit guide column 124 and the No. 2 U-shaped limit guide column 125 to limit the vibration of the axle shaft of the No. 1 gear box under test. The test gear box axle vibration hinge bearing seat device 82 moves along the transverse direction. The air spring assembly 120 is installed on the air spring mounting seat 126, and acts as a flexible support for the vibration hinge bearing seat device of the gear box axle under test, and changes the support stiffness by changing the air spring at best, thereby simulating the load on the bearing seat. varying degrees of impact.

The C-shaped frame support column 121 is welded by square steel pipes and rectangular connecting plates, and the lower base plate is provided with several circular through holes for mounting bolts, which are installed on the upper connecting plate of No. 2 U-shaped limit guide column 125 , the C-shaped frame support shaft and the pressure plate assembly 122 are installed on the C-shaped frame support column 121, suspended on the upper end connecting plate of the C-shaped frame support column 121 by the suspension bolt 128 of the C-shaped frame support shaft, by adjusting the suspension The length of the bolt is used to adjust the vertical position of the C-shaped frame support shaft and the pressing plate assembly 122 on the C-shaped frame support column 121 . The C-shaped frame support shaft 131 and the C-shaped frame support shaft pressure plate 130 are installed together by the C-shaped frame support shaft and the pressure plate assembly bolt 129. The C-shaped frame support shaft 131 is welded by a rectangular connecting plate and a shaft-shaped structure. The frame support shaft suspension bolt 128 is installed on the rectangular connection plate on the C-shaped frame support shaft 131, and the inside of the C-shaped frame support shaft pressing plate 130 and the C-shaped frame support shaft 131 rectangular connection plate are welded with limiting bars, so that the C-shaped frame The support shaft and the pressing plate assembly 122 can only move along the vertical direction of the C-shaped frame support column 121, and the C-shaped frame swing connecting rod 132 is installed on the C-shaped frame support shaft 131 through the C-shaped frame support shaft mounting hole 133 and is used for rotation. Connection; the C-shaped frame swing link 132 is rotationally connected with the C-shaped frame 63 of the gear box under test and the C-shaped frame 64 of the gear box under test through the C-shaped frame pin shaft mounting hole 134; by adjusting the C-shaped frame support shaft and the pressing plate assembly 122 on the vertical position of the C-shaped frame support column 121, the C-shaped frame swing link 132 will make the C-shaped frame 63 of the tested gearbox and the C-shaped frame 64 of the gear box to be tested tilt to the left or right at a certain angle, and simulate When the rail vehicle is accelerating or braking, the gearbox is tilted forward or backward, and the distribution and lubrication status of the gearbox lubricating oil in this tilted state are detected.

The working principle of the power machinery closed-loop face-to-face dual-gearbox roll-excited vibration test bench:

The power machinery closed-loop face-to-face dual gear box side-tilt excitation test bench described in the utility model includes a suspended vibration tested gear box group 23 and an accompanying test gear box group 28, and the suspended vibration tested gear box group 23 is subjected to vertical vibration. Excitation and lateral excitation can accurately simulate the radial and axial loads on the gearbox under actual working conditions and the vibration of high-speed trains running on actual lines, and truly reproduce the gearboxes of rail vehicles in operation. Vibration received; the accompanying test gearbox group 28 is in a stable test state, and the comparison test is carried out with the suspended vibration tested gearbox group 23 at the same time, which not only reduces the number of tests, but also ensures the correctness and accuracy of the gearbox reliability parameter test results. authenticity. Suspension vibration tested gear box group 23 and accompanying test gear box group 28 form a mechanical closed-loop system through the mechanical torque biaxially loaded gearbox contained in the test bench and the actuator device 27 on the same side of the transmission shaft. The mechanical torque makes the power circulate in the closed-loop system, thereby reducing energy consumption. The test bench only needs to use a small power motor to compensate part of the power to maintain the test, and achieve the purpose of saving energy; the test bench is tiltable The test bench can make the gearbox have a certain inclination angle in the horizontal direction and the longitudinal direction, and simulate and detect the distribution and lubrication of the gearbox under the curve motion, braking and acceleration of the high-speed train. The power machinery closed-loop face-to-face double gear box side-tilt excitation test bench described in the utility model can carry out comprehensive reliability tests on high-speed train gear boxes, which can improve the safe operation of high-speed train sets and the riding comfort of high-speed EMUs And the development of EMU technology has a very good role in promoting, and at the same time has good social and economic benefits.

Claims (8)

1. A power machinery closed-loop face-to-face double gear box roll type excitation test bench, is characterized in that: comprise gearbox lateral vibration excitation device (1), power machine closed loop face to face double gear box roll type test bench (2), Gantry vertical vibration excitation device (3), vibration-isolation T-slot cast iron foundation platform (6), vibration-isolation concrete foundation (7) and vibration-isolation spring group system (8) located at the lower end of vibration-isolation concrete foundation (7); The gearbox transverse excitation device (1), power machinery closed-loop face-to-face double gearbox roll type test bench (2) and gantry vertical vibration excitation device (3) are fixed on the vibration-isolation T-slot cast iron foundation platform ( 6), the vibration-isolation T-slot cast iron foundation platform (6) is fixed on the vibration-isolation concrete foundation (7) by anchor bolts; The tiltable foundation platform (29) in the power machinery closed-loop face-to-face dual gear box tilting test bench (2) is installed on the vibration isolation platform through four tilting platform adjustment supports and two tilting platform intermediate support seats. On the T-groove cast iron foundation platform (6); the transverse excitation actuator (21) in the gearbox transverse excitation device (1) passes through the transverse excitation link device (22) and the power machinery closed-loop face-to-face double gear The axial vibration bearing seat assembly (39) in the box roll test bench (2) is connected; Described gantry vertical vibration excitation device (3) is made of No. 1 gantry vertical vibration excitation device (13) and No. 2 gantry vertical vibration excitation device (14). The vertical vibration actuator device in the vibration excitation device (13) and the vertical vibration excitation device (14) of the No. The shaft vibration hinge bearing seat device (81) of the No. 1 tested gearbox in the test bench (2) is rotationally connected with the shaft vibration hinge bearing seat device (82) of the No. 2 tested gearbox; The power machinery closed-loop face-to-face double gear box tilting test bench (2) also includes a gear box rotation power compensation motor device (30), a mechanical torque biaxial loading gear box and an actuator device on the same side of the transmission shaft (27 ), the suspended vibration tested gearbox group (23) and the test gearbox group (28), which together with the intermediate shaft coupling tube (65) form a closed-loop system. 2. A power machinery closed-loop face-to-face double gearbox roll-excited vibration test bench according to claim 1, characterized in that: the front and rear ends of the two sides of the roll-able foundation platform (29) are symmetrically welded with The mounting plate of the tilting platform adjustment support, the middle position is provided with the mounting shaft (73) of the middle support seat of the rolling platform, and the four mounting plates of the tilting platform adjustment support are fixed on the vibration-isolation T-slot cast iron foundation platform (6) The four roll platform adjustment bearings are bolted, and the roll platform middle support seat installation shaft (73) is rotationally connected with two roll platform middle support seats fixed on the vibration-isolation T-slot cast iron foundation platform (6). 3. A power machinery closed-loop face-to-face double gear box roll-type excitation test bench according to claim 2, characterized in that: the roll platform adjustment support is adjusted by the roll platform support vertical plate (31 ), the roll platform adjustment support support plate (32) and the roll platform adjustment support installation bottom plate (33) are welded vertically to each other, wherein the roll platform adjustment support support plate (32) is composed of two support ribs It consists of long through holes for T-shaped bolts to pass through the installation base plate along the long sides of both ends and between the two support ribs, and the through-hole T-bolt vertical plate (31) for the adjustment support of the tilting platform is provided along the vertical direction. Shaped groove; The middle supporting seat of the tilting platform is composed of the rotating shaft mounting hole (34) of the middle supporting seat of the rolling platform, the vertical plate (35) of the middle supporting seat of the rolling platform, the support plate (36) of the middle supporting seat of the rolling platform and the The installation bottom plate (37) of the middle support seat of the platform is welded, and the installation bottom plate (37) of the middle support seat of the tilting platform is respectively provided with long through holes for the passage of T-shaped bolts along the two long sides; The inclination angle between the tiltable foundation platform (29) and the vibration-isolation T-slot cast iron foundation platform (6) can be adjusted. 4. A kind of power machinery closed-loop face-to-face dual gear box roll type excitation test bench according to claim 1, characterized in that: No. 1 tested in the suspended vibration tested gear box group (23) The gear box axle vibration hinge bearing seat device (81) is installed inside the No. 1 vibration shaft longitudinal restraint U-shaped seat and the air spring assembly (61) to constrain its movement in the transverse and longitudinal directions, and the No. 1 vibration shaft longitudinally restrains the U-shaped seat The assembly with the air spring (61) provides flexible support for the axle vibration hinge bearing device (81) of the gear box under test No. 1, and the axle vibration hinge of the gear box under test No. 2 in the suspended vibration gear box group (23) The bearing seat device (82) is installed inside the U-shaped seat and the empty spring assembly (62) of the No. 2 vibration shaft longitudinal restraint, and constrains its movement in the transverse and longitudinal directions. The No. 2 vibration shaft longitudinally restrains the U-shaped seat and the empty spring assembly (62) provides flexible support for the shaft vibration hinge bearing seat device (82) of the No. 2 tested gearbox. 5. A power machinery closed-loop face-to-face double gearbox roll-type excitation test bench according to claim 4, characterized in that: said No. 1 vibration axis longitudinally constrains the U-shaped seat and the air spring assembly (61) and the No. 2 vibration shaft longitudinal restraint U-shaped seat and the air spring assembly (62) both include the upper connecting plate (119) of the U-shaped frame, the air spring assembly (120), the C-shaped frame support column (121), and the C-shaped frame The support shaft and the pressure plate assembly (122) and the U-shaped guide rail of the suspension bearing seat and the gas spring seat (123), the U-shaped guide rail of the suspension bearing seat and the gas spring seat (123) are limited by No. The U-shaped structural member formed by welding the guide column (124), the No. 2 U-shaped limit guide column (125), the air spring mounting seat (126) and the U-shaped frame mounting base plate (127), and the No. 1 U-shaped limit guide column (124) and the upper end of No. 2 U-shaped space-limiting guide post (125) are all welded with connecting plate, and the upper end of No. 2 U-shaped space-limiting guide post (125) is equipped with C-shaped support post (121), No. 1 U A guide plate is respectively welded on the inner wall of the No. 2 U-shaped limit guide post (124) and the No. 2 U-shaped limit guide post (125). The shaft vibration hinge bearing seat device (82) of the gear box under test performs vertical movement under the action of excitation to limit its longitudinal movement; the U-shaped frame mounting base plate (127) is fixed on the No. ) and the bottom of No. 2 U-shaped limit guide column (125), circular through holes for installing bolts are respectively arranged along the long side direction; U-shaped limit guide column (124) and No. 2 U-shaped limit guide column (125) on the front and rear sides to limit the vibration of the axle shaft vibration hinge bearing seat device (81) of the No. 1 tested gearbox and the axle vibration of the No. 2 tested gearbox The hinge bearing device (82) moves along the lateral direction, and the air spring assembly (120) is installed on the air spring mounting seat (126) for supporting the vibration hinge bearing device of the gear box axle under test. 6. A power machinery closed-loop face-to-face double gearbox roll-type vibration excitation test bench according to claim 5, characterized in that: the support shaft of the C-shaped frame and the pressure plate assembly (122) are installed on the C-shaped The C-shaped frame support shaft suspension bolt (128) of the frame support shaft (131) is suspended on the upper end connecting plate of the C-shaped frame support column (121), and can move along the vertical direction of the C-shaped frame support column (121), The C-shaped support shaft (131) is connected with the C-shaped frame (63) of the tested gearbox in the suspended vibration tested gearbox group (23) and the accompanying test through the C-shaped frame swing connecting rod (132). Accompanied by the test gear box C-shaped frame (64) in the gear box group (28) is rotatably connected so that it can tilt left or right. 7. A power machinery closed-loop face-to-face double gearbox roll-type vibration excitation test bench according to claim 1, characterized in that: the rotational speed provided by the gearbox rotation power compensation motor device (30) is transmitted to the accompanying test The accompanying gearbox (45) in the gearbox group (28) is transmitted to the mechanical torque through the transmission shaft assembly (66) composed of the ball spline and the cross shaft universal joint inside the actuator device (27), and then passed to the tested gear box (83) in the suspended vibration tested gear box group (23) through the cardan shaft assembly (69), the tested gear box (83) The input end is connected together with the input end of the test gearbox (45) through the intermediate shaft coupling tube (65); The rotary power compensation motor (49) in the gearbox rotary power compensation motor device (30) is installed in the test gearbox group (28) through the motor flange conversion shaft and the hydraulic safety coupling assembly (48) On the rotating power motor flange connecting shaft (109) of the gearbox axle (46) accompanying the test; the right end of the gearbox axle (46) is equipped with the No. 1 universal joint flange connection assembly (70), and the No. 1 The other end of the universal joint flange connection set assembly (70) is connected with the universal joint shaft assembly (69), and the universal joint shaft assembly (69) is connected with the flange type torque speed sensor assembly (68) The mechanical torque dual-axis loading gearbox is connected with the mechanical torque loading left large gear shaft assembly (88) in the actuator device (27) on the same side of the transmission shaft, and the flange type torque speed sensor assembly (68) passes the method The mounting seat (80) of the blue-type torque speed sensor assembly is installed on the tiltable foundation platform (29); The transmission shaft assembly (66) synthesized by the ball spline and cross shaft universal joint through the torque loaded right large gear shaft assembly (87) and the tested gearbox installed in the suspended vibration tested gearbox group (23) The No. 2 universal joint flange connection set assembly (85) on the right side of the axle (84) is connected; ) in the test gear box (45) is arranged face to face, and the input ends of the two are connected through the input shaft coupling tube (65), the suspended vibration tested gear box group (23) and the test gear box group (28) A closed-loop system is formed, the mechanical torque dual-axis loading gearbox and the actuator device (27) on the same side of the transmission shaft are used to load torque for the system, and the power compensation motor (49) is used to provide rotational speed for the system. 8. A kind of power machinery closed-loop face-to-face double gear box side-tilting vibration excitation test bench according to claim 1, characterized in that: said mechanical torque biaxial loading gear box and the actuator device on the same side of the transmission shaft ( 27) is a two-stage gearbox, including a mechanically loaded gearbox case (67), a mechanical torque loaded actuator and push-pull shaft assembly (86), a mechanical torque loaded right large gear shaft assembly (87), a mechanical torque loaded Load left large gear shaft assembly (88), mechanical torque load intermediate gear shaft assembly (89), No. 1 mechanical torque loaded gearbox large shaft end cover (90), No. 2 mechanical torque loaded gearbox large shaft end cover (91), No. 3 mechanical torque loaded gear box shaft end cover (93) and No. 4 mechanical torque loaded gear box shaft end cover (94); The No. 1 mechanical torque loading gearbox large shaft end cover (90) and the No. 2 mechanical torque loading gearbox large shaft end cover (91) are installed on the shaft box of the mechanical torque loading right large gear shaft assembly (87) At the outer two ends, the No. 3 mechanical torque loading gearbox large shaft end cover (93) and the No. 4 mechanical torque loading gearbox large shaft end cover (94) are installed on the shaft of the mechanical torque loading left large gear shaft assembly (88) At both ends of the box, the mechanical torque loading actuator is connected with the push-pull shaft assembly (86) and the mechanical torque loading intermediate gear shaft assembly (89), and is installed on the side by the mechanical torque loading actuator mounting seat (78). Tilt on the foundation platform (29); The mechanical torque loads the left bull gear (95) in the left bull gear shaft assembly (88) and the No. 1 intermediate pinion (105) in the mechanical torque load intermediate gear shaft assembly (89) Mesh, the No. 2 intermediate pinion (106) in the described mechanical torque loading intermediate gear shaft assembly (89) and the mechanical torque loading right bull gear (87) in the mechanical torque loading right bull gear shaft assembly (87) 92) meshing, and the mechanical torque loads the left large gear (95), the mechanical torque loads the right large gear (92), the No. 1 intermediate pinion (105) and the No. 2 intermediate pinion (106) are all helical gear.