Device and method for testing the performance of a coupling and a gearbox

Abstract

The application discloses a kind of for coupling and gear box performance test device and method, the device includes gear box support device and connecting device installed on base plate, and the rotation axis of accompanying test gear box is connected on the gear box support device with main test gear box rotation axis, gear box support device includes accompanying test box support part cover and main test box support part cover, and is provided with displacement structure on accompanying test box support part cover;There is height difference between accompanying test box support part cover and main test box support part cover;Vertical force device is movably connected on main test box support part cover;Main test gear box is connected with driving device after being connected with main test box support part cover or accompanying test box support part cover, coupling in turn or accompanying test gear box;Horizontal force device, accompanying test gear box and main test gear box are located on same axis.The device and method of the application simultaneously meet the performance of coupling, gear box performance verification demand, can better verify the reliability of gear box and coupling.

Description

TECHNICAL FIELD

[0001] The present application relates to a device and method for shaft coupling and gear box performance test, belonging to the technical field of gear box detection. BACKGROUND

[0002] In rail transit, shaft coupling is an important transmission connecting component of gear box. In order to ensure the safety and reliability of gear box and shaft coupling when put into use, the indexes of gear box and shaft coupling need to be tested and verified, and the gear box needs to be loaded during the test process.

[0003] However, in the current prior art, the gear box and the shaft coupling are mostly tested separately. For example, Chinese patent (CN108627323A) discloses a dynamic deflection device for drum gear shaft coupling, which realizes the simulation of the working state of the dynamic deflection of the drum gear shaft coupling by orderly controlling the action of the hydraulic cylinder. Chinese patent (CN209841382U) discloses a shaft coupling test device and a shaft coupling test system, which can test the shaft coupling under large displacement running environment. However, the above two shaft coupling test systems have the disadvantages of large resource occupation and large space occupation. At the same time, the traditional gear box loading test generally uses a motor as a driving device, cooperates with a hydraulic or electric loading device, and controls the experimental torque by adjusting the loading torque of the load. However, the gear box will bear the load from the car in actual operation, and will also bear the load from the car, guide wheel and other directions in severe working conditions. Therefore, the traditional gear box loading test is difficult to simulate the actual working condition of the multi-directional load applied to the gear box by the vehicle in operation, and the existing gear box test platform is difficult to realize the test and verification of the shaft coupling at the same time. The two need to be tested separately, which not only cannot fully simulate the actual working condition of the rail transit gear box and shaft coupling, but also increases the cost and resource consumption. SUMMARY

[0004] The present application provides a device for shaft coupling and gear box performance test, which solves the technical problem of only testing the gear box or the shaft coupling in the prior art.

[0005] To achieve the above object, the technical scheme adopted by the present application is: a kind of for coupling and gear box performance test device, including gear box support device and connecting device installed on bottom plate, the rotating shaft of accompanying test gear box is connected on the gear box support device with main test gear box rotating shaft, the connecting device is used for the transmission connection between accompanying test gear box and main test gear box, the gear box support device includes accompanying test box support part set and main test box support part set, the accompanying test box support part set and main test box support part set both have height difference;Variable position structure is arranged on the accompanying test box support part set;Vertical force device is movably connected on main test box support part set;The lateral force device, longitudinal force device are movably connected with main test gear box;Main test gear box is sequentially connected with the main test box support part set, coupling and then is connected with driving device;Accompanying test gear box is sequentially connected with the accompanying test box support part set, coupling and then is connected with driving device;The lateral force device, accompanying test gear box and main test gear box are located on the same axis;The longitudinal force device, coupling are arranged 90 ° with the axis.

[0006] Preferably, the accompanying test box support part set includes upper bearing seat and lower bearing seat, and the upper bearing seat and the lower bearing seat are detachably connected.

[0007] Preferably, the gear box support device further includes an accompanying test box support rod, an accompanying test box support pin, a main test box support rod and a main test box support pin.

[0008] Preferably, the accompanying test box support pin and the main test box support pin are provided with a limiting portion and a locking portion.

[0009] Preferably, the lateral force device includes a lateral force support plate, a tension sensor, a lateral force pull rod and a lateral force applying rod.

[0010] Preferably, the vertical force device comprises a vertical force applying rod, a load cell, a vertical force pressing plate and a vertical pressure support plate, the bottom of the vertical pressure support plate is connected with the main test gear box; the load cell is located between the vertical force pressing plate and the vertical pressure support plate; the vertical force applying rod is threadedly connected with the main test box support part after penetrating through the vertical force pressing plate, and the vertical force pressing plate is movably connected with the vertical force applying rod.

[0011] Preferably, the top of the vertical pressure support plate is provided with a concave surface, the lower part is provided with an inclined plane, and the two sides of the inclined plane are respectively provided with V-shaped surfaces; the shape of the concave surface matches the shape and size of the bottom of the load cell; the V-shaped surfaces and the inclined plane are used for connecting the vertical pressure support plate with the main test gear box. The concave surface is used for preventing the load cell from sliding; the V-shaped surfaces and the inclined plane facilitate the connection with the gear box.

[0012] Preferably, the two ends of the vertical force pressing plate are provided with vertical force applying rods. By adjusting the two vertical force applying rods, the same or different tightening degrees of the two vertical force applying rods can be achieved, that is, uniform load or partial load can be achieved, so as to meet the different load distribution requirements and be closer to the actual operation condition.

[0013] Preferably, the longitudinal force device comprises a longitudinal force support plate, a longitudinal force pull rod, a longitudinal force applying rod and a tension sensor connected between the longitudinal force support plate and the longitudinal force applying rod; one end of the longitudinal force support plate is fixedly connected with the main test gear box, and the other end is fixedly connected with the tension sensor; the longitudinal force applying rod is movably connected with the tension sensor after penetrating through the longitudinal force pull rod, and the longitudinal force applying rod is threadedly connected with the longitudinal force pull rod.

[0014] The application provides a comprehensive performance test device for a coupling and a gear box, which can meet the performance verification requirements of the coupling and the gear box, save cost and resources, and better verify the reliability of the gear box and the coupling.

[0015] The traditional gear box loading test is verified by the torque applied to the gear box by a motor; the adjusting load device provided by the application is irrelevant to the motor, but increases the load applied to the gear box and the coupling by a simulated vehicle body and the traction, lateral force and gravity of the gear box in the vehicle running process. Therefore, the running condition of the gear box and the coupling of the application is closer to the actual running condition, not only simulates the influence of the torque of the gear box itself, but also simulates the influence of the force applied to the gear box by the vehicle body in the vehicle running process, including the gravity applied by the vehicle body, the lateral force when the vehicle turns and the traction when the vehicle starts. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A structural schematic diagram of a performance test device for a coupling and a gear box is provided in the application.

[0017] Figure 2 Figure 3 is a structural schematic diagram of the support part sleeve of the test box in the present application;

[0018] Figure 3 Figure 4 is an axonometric view of the lower bearing seat in the present application;

[0019] Figure 4 Figure 5 is a structural schematic diagram of the end cover in the present application;

[0020] Figure 5 Figure 6 is a sectional view of the support part sleeve of the test box in the present application;

[0021] Figure 6 Figure 7 is a structural schematic diagram of the support rod of the test box in the present application;

[0022] Figure 7 Figure 8 is a structural schematic diagram of the support pin of the test box in the present application;

[0023] Figure 8 Figure 9 is a structural schematic diagram of the vertical force device, the lateral force device and the longitudinal force device in the present application;

[0024] Figure 9 Figure 10 is a structural schematic diagram of the vertical pressure support plate in the present application;

[0025] Figure 10 Figure 11 is a principle schematic diagram of the displacement structure in the present application.

[0026] Wherein: 1-Test box support rod, 101- Lower clamping surface, 102- Upper clamping surface, 103- Locking screw hole, 2- Locking bolt, 3- Test box support pin, 301- Upper support surface A, 302- Lower support surface A, 304- Upper support surface B, 305- Lower support surface B, 303- Limiting ring belt, 306- Right limiting surface, 307- Left limiting surface, 4- Test gear box, 5- Test box support part sleeve, 501- Upper bearing seat, 502- End cover mounting hole, 503- Lower bearing seat, 5031- Body, 5032- Base, 5033- Hoisting hole, 5034- Rib plate, 504- Rolling bearing, 505- End cover, 5051- Flange, 5052- Seal packing groove, 506- Positioning pin, 507- Displacement positioning hole A, 508- Displacement positioning hole B, 509- Displacement groove, 510- Seal packing, 6- Input flange, 7- Vertical force applying rod, 8- Weighing sensor, 9- Vertical force pressing plate, 10- Vertical pressure support plate, 1001- Concave surface, 1002- V-shaped surface, 1003- Inclined flat surface, 11- Main test box support part sleeve, 12- Main test gear box, 13- Horizontal force support plate, 14- Horizontal force connecting screw, 15- Tension sensor, 16- Horizontal force pulling rod, 17- Horizontal force applying rod, 18- Support square box, 19- Tightening bolt for horizontal force pulling rod, 20- Main test box support rod, 21- Longitudinal force support plate, 22- Longitudinal force connecting screw, 23- Longitudinal force pulling rod, 24- Longitudinal force applying rod, 25- Pressing plate, 26- Tightening bolt for pressing plate, 27- Bottom plate, 28- First motor, 29- Bearing sleeve, 30- Universal shaft, 31- Main test box support pin, 32- Second motor, 33- I-shaped flange, 34- Inner tooth sleeve, 35- Drum-shaped tooth sleeve, 36- Torque sensor. DETAILED DESCRIPTION

[0027] In order to better understand the essence of the present application, the present application will be further described below in conjunction with specific embodiments and drawings.

[0028] The present application is suitable for detecting the joint and gear box in rail transit, and particularly relates to a performance test device for joint and gear box, such as Figure 1As shown, including the installation on the base plate 27 gear box support device, connecting device, vertical force device, lateral force device and longitudinal force device; The gear box support device includes the test box support sleeve 5 and the main test box support sleeve 11, the test box support sleeve 5 and the main test box support sleeve 11 have height difference. The test box support sleeve 5 is provided with displacement structure. Test box support sleeve 5 and main test box support sleeve 11 have height difference, so as to form the large angle connection between the test gear box 4 and the main test gear box 12 according to the need. The test box support sleeve 5 and the main test box support sleeve 11 are provided with bearing seat; The test box support sleeve 5 and the test gear box 4 are rotatably connected; The main test box support sleeve 11 and the main test gear box 12 are rotatably connected; The connecting device includes input flange 6, bearing sleeve 29 and universal shaft 30. The input flange 6 is used for connecting between the test gear box 4 and the main test gear box 12; The bearing sleeve 29 and the universal shaft 30 are used for connecting the test gear box 4 and the main test gear box 12 with the corresponding motor; The drum gear sleeve 35 and the motor are also provided with torque sensor 36.

[0029] The vertical force device is movably connected on the main test box support sleeve 11; The lateral force device and the main test gear box 12 are movably connected through the lateral force connecting screw 14; The longitudinal force device and the main test gear box 12 are movably connected through the longitudinal force connecting screw 22. The lateral force device, the test gear box 4, the input flange 6 and the main test gear box 12 are located on the same axis; The longitudinal force device, the displacement device and the axis are arranged at 90°, which can better simulate the actual situation of vehicle traction force. The first motor 28 and the second motor 32 are respectively located on both sides of the axis. Arranging the first motor 28 and the second motor 32 on both sides of the test gear box 4 and the main test gear box 12 respectively can effectively shorten the length of the intermediate connecting component, thereby reducing the power loss and improving the accuracy of gear box efficiency project evaluation.

[0030] The main test gear box 12 is connected with the first motor 28 output shaft after being connected with the main test box support part sleeve 11, the I-shaped flange 33, the inner tooth sleeve 34, the drum-shaped tooth sleeve 35, the torque sensor 36, the bearing sleeve 29 and the universal shaft 30 in turn; the accompanying test gear box 4 is connected with the second motor 32 output shaft after being connected with the accompanying test box support part sleeve 5, the I-shaped flange 33, the inner tooth sleeve 34, the drum-shaped tooth sleeve 35, the torque sensor 36 and the bearing sleeve 29 in turn; the first motor 28 and the second motor 32 are not on the same side of the accompanying test gear box 4 or the main test gear box 12. The accompanying test gear box 4 and the main test gear box 12 are driven and connected through the I-shaped flange 33 and the corresponding inner tooth sleeve 34; the inner tooth sleeve 34 and the drum-shaped tooth sleeve 35 are driven and connected through the drum-shaped tooth; the torque sensor 36 is arranged on the drum-shaped tooth sleeve 35; the inner tooth sleeve 34 and the drum-shaped tooth sleeve 35 are symmetrically arranged. The inner tooth sleeve 34 and the drum-shaped tooth sleeve 35 of the accompanying test gear box 4 or the main test gear box 12 are each provided with two, one inner tooth sleeve 34 and one drum-shaped tooth sleeve 35 form a pair, and the two pairs of inner tooth sleeve 34 and drum-shaped tooth sleeve 35 are symmetrical relative to the torque sensor 36.

[0031] The vertical force device is used for simulating the vertical force of the carriage on the gear box; the lateral force device is used for simulating the lateral force of the guide wheel on the gear box; the longitudinal force device is used for simulating the longitudinal force of the carriage on the gear box; and the displacement device is used for adjusting the displacement of the shaft coupling.

[0032] In some embodiments of the present application, the accompanying test box support part sleeve 5 is provided with two, and the accompanying test gear box 4 is installed between the two accompanying test box support part sleeves 5. The main test box support part sleeve 11 is provided with two, and the main test gear box 12 is installed between the two main test box support part sleeves 11. The accompanying test gear box 4 is driven and connected with the main test gear box 12 through the input flange 6; and the accompanying test gear box 4 and the main test gear box 12 are connected through the accompanying test box support part sleeve 5 and the main test box support part sleeve 11 to realize large inclination angle connection.

[0033] The end of the accompanying test gear box 4 away from the input flange 6 is movably connected with the accompanying test box support pin 3; the end of the main test gear box 12 away from the input flange 6 is movably connected with the main test box support pin 31; the two ends of the accompanying test box support pin 3 are both provided with the accompanying test box support rod 1, and the accompanying test box support rod 1 is clamped with the accompanying test box support pin 3; the two ends of the main test box support pin 31 are both provided with the main test box support rod 20, and the main test box support rod 20 is clamped with the main test box support pin 31; the accompanying test box support rod 1 and the accompanying test box support part sleeve 5 are used for fixing the accompanying test gear box 4 on the bottom plate 27; and the main test box support rod 20 and the main test box support part sleeve 11 are used for fixing the main test gear box 12 on the bottom plate 27.

[0034] The bearing seat is arranged on the accompanying test box supporting part sleeve 5 and the main test box supporting part sleeve 11. The accompanying test box supporting part sleeve 5 and the main test box supporting part sleeve 11, which are not connected with the bearing sleeve 29, are connected with the accompanying test gear box 4 and the main test gear box 12 through the corresponding pressing plate 25 and the pressing plate fastening bolt 26.

[0035] As shown in the accompanying test box supporting part sleeve 5, the accompanying test box supporting part sleeve 5 includes the upper bearing seat 501 and the lower bearing seat 503, and the upper bearing seat 501 and the lower bearing seat 503 are bolted. Figures 2 to 5 The upper bearing seat 501 and the lower bearing seat 503 are provided with the rotating shaft mounting part, the rolling bearing 504 is arranged in the rotating shaft mounting part, and the rotating shaft mounting part is matched with the rotating shaft of the accompanying test gear box 4. The upper bearing seat 501 and the lower bearing seat 503 are provided with the end cover mounting hole 502, the end cover mounting hole 502 is a threaded hole, the position of the end cover mounting hole 502 is corresponding to the end cover 505. The upper bearing seat 501 and the lower bearing seat 503 are provided with the lug, the lug is provided with the threaded hole and the positioning hole for mounting and connecting the two, the positioning hole is matched with the positioning pin 506, and the mounting is reliable and without misplacement. The lower end surface of the lug of the upper bearing seat 501 is tightly attached to the upper end surface of the lug of the lower bearing seat 503 through bolt fastening.

[0036] As shown in the accompanying test box supporting part sleeve 5, the accompanying test box supporting part sleeve 5 includes the upper bearing seat 501 and the lower bearing seat 503, and the upper bearing seat 501 and the lower bearing seat 503 are bolted. Figures 3 to 5 The body 5031 is provided with the lifting hole 5033 and the rib plate 5034, and the lifting hole 5033 and the rib plate 5034 are symmetrically arranged. The lifting hole 5033 facilitates the lifting installation of the accompanying test box supporting part sleeve 5. The rib plate 5034 is at an angle of 90° with the body 5031.

[0037] The base 5032 is provided with a displacement structure, and the displacement structure includes a displacement positioning hole A 507, a displacement positioning hole B 508 and a displacement groove 509. In some embodiments of the present application, the displacement positioning hole A 507 and the displacement positioning hole B 508 have different hole diameters, so that they can be quickly distinguished during installation. The positioning pin is matched with the displacement positioning hole A 507 and the displacement positioning hole B 508, and is respectively used for accurately installing the accompanying test box supporting part sleeve before and after the displacement of the shaft coupling, without misplacement.

[0038] When the base 5032 is connected with the bottom plate 27 through the displacement positioning hole A 507 and the displacement groove 509, the bolt of the displacement groove 509 is in position one, and the device is in the initial position. When the bolt of the displacement positioning hole A 507 is loosened, the base 5032 is connected with the bottom plate 27 through the displacement positioning hole B 508 and the displacement groove 509, the bolt of the displacement groove 509 is in position two, and the device is in the extreme displacement position, so that the shaft coupling and the gear box can be tested at the same time.

[0039] The threaded hole position corresponding to the displacement groove 509 on the bottom plate 27 is determined by a two-dimensional table position map: starting from the main test gear box support rod 20, the distance of each component at the position is measured in sequence according to the position of each component, and then the position of the test gear box support part sleeve 5 is determined, and the threaded hole position and the displacement groove position are arranged according to the center symmetry principle. In some embodiments of the present application, the rib plate 5034 and the body 5031 divide the base 5032 into six areas, and each area is provided with a displacement groove 509. The displacement groove 509 is connected with the bottom plate 27 by a bolt, and the bolt can slide in the displacement groove 509.

[0040] In some embodiments of the present application, the displacement groove 509 is a waist-shaped hole. As shown in the figure, since the test gear box 4 is arranged at an angle with the main test gear box 12, the displacement amount of the test gear box 4 can be decomposed into axial and radial displacement amounts after being projected on a plane, that is: Figure 10

[0041]

[0042] Wherein: S x is the axial displacement amount of the test gear box; S y is the radial displacement amount of the test gear box; C x is the maximum axial displacement of the coupling; C y is the maximum radial displacement of the coupling; and θ is the inclination angle of the input shaft of the test gear box.

[0043] As can be seen from formula (1) and formula (2), the total length of the displacement groove 509 is greater than or equal to S I .

[0044] The end cover 505 is annular, and a flange 5051 is arranged along the inner ring, a sealing packing ring groove 5052 is arranged in the flange 5051, and sealing packing 510 is filled in the sealing packing ring groove 5052. A through hole for connecting the upper bearing seat 501 and the lower bearing seat 503 is arranged on the end cover 505, and the through hole corresponds to the arrangement position of the end cover mounting hole 502. The flange 5051 is in contact with the side surface of the rolling bearing 504, and the flange 5051 is used to limit the axial displacement of the rolling bearing 504, and the sealing packing 510 can prevent the lubricant of the rolling bearing 504 from leaking.

[0045] In some embodiments of the present application, the main test box support part sleeve 11 is the same as the test box support part sleeve 5 except that it does not have a displacement structure.

[0046] In some embodiments of the present application, the test box support rod 1 has the same structure as the main test box support rod 20, as shown in the figure. Figure 6 ​As shown, the test box support rod 1 is provided with a bayonet at the connection between the test box support rod 1 and the test box support pin 3, forming a lower clamping surface 101 and an upper clamping surface 102; a locking screw hole 103 is formed above the upper clamping surface 102, which is used to cooperate with the locking bolt 2 to lock the test box support pin 3, preventing the test gear box 4 from affecting the test results due to the slight vibration during the detection of the gear box vibration. The arrangement of the bayonet facilitates the assembly of the test box support rod 1 and the test box support pin 3, as well as the alignment of the test box support rod 1 and the test gear box 4.

[0047] In some embodiments of the present application, the test box support pin 3 has the same structure as the main test box support pin 31, as shown in Figure 7 As shown, the test box support pin 3 includes upper support surfaces A301 and B304 and lower support surfaces A302 and B305 at both ends, as well as a limiting ring belt 303 at the middle position; the ends of the upper support surfaces A301 and B304 and the lower support surfaces A302 and B305 are provided with right limiting surfaces 306 and left limiting surfaces 307. The upper clamping surface 102 cooperates with the upper support surfaces A301 or B304, and the lower clamping surface 101 cooperates with the lower support surfaces A302 or B305, so as to clamp the test box support rod 1 and the test box support pin 3, facilitating the installation and removal of the two.

[0048] The limiting ring belt 303 is used to position the installation position of the test box support pin 3 and the test gear box 4, and the right limiting surfaces 306 and the left limiting surfaces 307 are used to limit the installation distance between the test box support rods 1 on both sides of the test gear box 4.

[0049] As shown in Figure 8 and Figure 9 As shown, the vertical force device includes a vertical force rod 7, a weighing sensor 8, a vertical force pressing plate 9, and a vertical pressure support plate 10, the bottom of the vertical pressure support plate 10 is connected with the main test gear box 12; the top of the weighing sensor 8 is in contact with the vertical force pressing plate 9, and the bottom of the weighing sensor 8 is in contact with the vertical pressure support plate 10; the vertical force rod 7 is threadedly connected with the main test box support part sleeve 11 after penetrating through the vertical force pressing plate 9, and the vertical force pressing plate 9 is movably connected with the vertical force rod 7.

[0050] In some embodiments of the present application, the top of the vertical pressure support plate 10 is provided with a concave surface 1001, and the bottom is provided with an inclined plane 1003, and the two sides of the inclined plane 1003 are respectively provided with V-shaped surfaces 1002; the shape of the concave surface 1001 matches the weighing sensor 8. The weighing sensor 8 is placed in the concave surface 1001, and the concave surface 1001 is used to prevent the weighing sensor 8 from sliding; the V-shaped surface 1002 and the inclined plane 1003 are used to connect the vertical pressure support plate 10 and the main test gear box 12, and the V-shaped surface 1002 and the inclined plane 1003 are convenient for connecting with the gear box. The weighing sensor 8 is located between the concave surface 1001 and the vertical force pressing plate 9, and the bottom of the vertical force pressing plate 9 is in contact with the top of the weighing sensor 8.

[0051] The two ends of the vertical force pressing plate 9 are provided with vertical force applying rods 7; the pressure applied on the vertical force pressing plate 9 is further transmitted to the main test gear box 12 through the vertical pressure support plate 10 to simulate the vertical force applied by the vehicle compartment to the main test gear box 12; wherein the size of the vertical force can be obtained by the weighing sensor 8.

[0052] In some embodiments of the present application, the lateral force device includes a lateral force support plate 13, a tension sensor 15, a lateral force pulling rod 16 and a lateral force applying rod 17; the lateral force support plate 13 is movably connected with the main test box support pin 31; the tension sensor 15 is located between the lateral force support plate 13 and the lateral force pulling rod 16, the lateral force applying rod 17 is movably connected with the tension sensor 15 after penetrating through the lateral force pulling rod 16, and the lateral force applying rod 17 is threadedly connected with the lateral force pulling rod 16. The lateral force support plate 13 is fixedly connected with the tension sensor 15 through the lateral force connecting screw 14. The lateral force pulling rod 16 is fixedly connected with the support square box 18 through the lateral force pulling rod fastening bolt 19, and the support square box 18 is located outside the bottom plate 27. The overall height of the lateral force pulling rod 16 and the support square box 18 is consistent with the overall height of the main test box support rod 20 and the bottom plate 27, so that the lateral force support plate 13 is in a horizontal state.

[0053] In some embodiments of the present application, the longitudinal force device includes a longitudinal force support plate 21, a longitudinal force pulling rod 23, a longitudinal force applying rod 24, and a tension sensor connected between the longitudinal force support plate 21 and the longitudinal force applying rod 24. The longitudinal force support plate 21 is fixedly connected with the main test gear box 12, and the longitudinal force support plate 21 is fixedly connected with the tension sensor through the longitudinal force connecting screw 22. The longitudinal force applying rod 24 is movably connected with the tension sensor after penetrating through the longitudinal force pulling rod 23, and the longitudinal force applying rod 24 is threadedly connected with the longitudinal force pulling rod 23. The longitudinal force pulling rod 23 is fixed on the bottom plate 27. The longitudinal force pulling rod 23 is used to keep the longitudinal force support plate 21 in a horizontal state.

[0054] The application further discloses a method for joint and gear box performance test.

[0055] The bottom plate 27 is connected with the test box supporting part sleeve 5 through the variable position positioning hole A507, and the lateral force, the longitudinal force and the vertical force are applied.

[0056] 1) Lateral force application: the lateral force application is realized by rotating the lateral force applying rod 17 and adjusting the tightening degree of the lateral force applying rod 17. The force size can be obtained by the display matched with the tension sensor, and the force change in the running process can be known in real time according to the data obtained by the display, so as to ensure the reliability of the data.

[0057] 2) Longitudinal force application: the longitudinal force application is realized by rotating the longitudinal force applying rod 24 and adjusting the tightening degree of the longitudinal force applying rod 24. The force size can be obtained by the display matched with the tension sensor connected with the longitudinal force applying rod 24, and the force change in the running process can be known in real time according to the data obtained by the display, so as to ensure the reliability of the data.

[0058] 3) Vertical force application: the vertical force application is realized by rotating the vertical force applying rod 7 and adjusting the tightening degree of the vertical force applying rod 7. The force size can be obtained by the display matched with the weighing sensor 8, and the force change in the running process can be known in real time according to the data obtained by the display, so as to ensure the reliability of the data.

[0059] Meanwhile, the application of the vertical force can also realize the eccentric load and the uniform load. The same or different tightening degrees of the two vertical force applying rods 7 can be realized by single adjustment of the two vertical force applying rods 7, so that the uniform load or the eccentric load can be realized, so as to meet the different load distribution requirements and be closer to the actual running conditions.

[0060] During the test, the real-time data obtained by the sensors can be transmitted to the cloud, so as to facilitate the analysis of the gear box running conditions in the later period.

[0061] 4) Variable position process:

[0062] The bolts of the variable position positioning hole A507 are loosened, the base 5032 is connected with the bottom plate 27 through the variable position positioning hole B508 and the variable groove 509, the device is in the limit variable position, the input rotating speed and the load of the gear box are adjusted through the motor, the test parameters under each condition are adjusted to the parameters proposed in the test outline, after the required time in the running outline, the joint temperature change is in the required range, and the requirement is met.

[0063] The device of the application realizes the limit displacement of the coupling by the variable support part cover to meet the displacement capacity verification; the driving device and the support device meet the coupling starting torque, the periodic load, the highest speed and other capacity verification, and the actual operation condition of the gear box is verified.

[0064] It should be noted that although the application has been described by the above embodiments, the application can also have other various embodiments. Those skilled in the art can obviously make various corresponding changes and modifications to the application without departing from the spirit and scope of the application, but these changes and modifications should belong to the scope protected by the appended claims and their equivalents of the application.

Claims

1. A device for joint and gear box performance test, comprising a gear box supporting device and a connecting device mounted on a base plate (27), a rotating shaft of a test gear box (4) and a rotating shaft of a main test gear box (12) are connected on the gear box supporting device, the connecting device is used for driving connection between the test gear box (4) and the main test gear box (12), characterized in that: The gear box supporting device comprises a test box supporting part sleeve (5) and a main test box supporting part sleeve (11), the test box supporting part sleeve (5) and the main test box supporting part sleeve (11) have a height difference; the test box supporting part sleeve (5) is provided with a displacement structure; the displacement structure is used for the axial and radial movement of the test box supporting part sleeve (5) and the shaft coupling; the vertical force device is movably connected to the main test box supporting part sleeve (11); the lateral force device and the longitudinal force device are movably connected to the main test box (12); the main test gear box (12) is connected to the main test box supporting part sleeve (11) and the shaft coupling in sequence and then connected to the driving device; the test gear box (4) is connected to the test box supporting part sleeve (5) and the shaft coupling in sequence and then connected to the driving device; the axis of the lateral force device, the test gear box (4) and the main test gear box (12) is parallel; the longitudinal force device and the shaft coupling are arranged at 90° with the axis. ​ The test box supporting part sleeve (5) comprises an upper bearing seat (501) and a lower bearing seat (503), the upper bearing seat (501) and the lower bearing seat (503) are detachably connected; the lower bearing seat (503) is provided with a base (5032), and the base (5032) is provided with a displacement structure; The displacement structure comprises a displacement positioning hole A (507), a displacement positioning hole B (508) and a displacement groove (509); when the base (5032) is connected to the bottom plate (27) through the displacement positioning hole A (507) and the displacement groove (509), the bolt of the displacement groove (509) is in position one, and the device is in the initial position; when the base (5032) is connected to the bottom plate (27) through the displacement positioning hole B (508) and the displacement groove (509), the bolt of the displacement groove (509) is in position two, and the device is in the limit displacement position; the total length of the displacement groove (509) is greater than or equal to the axial displacement amount of the test gear box.

2. The device for testing the performance of a coupling and a gear box according to claim 1, characterized in that: The gear box supporting device further comprises a test box supporting rod (1), a test box supporting pin (3), a main test box supporting rod (20) and a main test box supporting pin (31); the test box supporting pin (3) is movably connected to the test gear box (4), and the test box supporting rod (1) is clamped on the test box supporting pin (3); the main test box supporting pin (31) is movably connected to the main test gear box (12), and the main test box supporting rod (20) is clamped on the main test box supporting pin (31); the test box supporting rod (1) and the main test box supporting rod (20) are both fixed on the bottom plate (27).

3. The apparatus for testing the performance of a coupling and a gear box according to claim 2, characterized in that: The test box supporting pin (3) and the main test box supporting pin (31) are both provided with a limiting part and a locking part; the limiting part is used for limiting the installation distance of the test box supporting rod (1) or the main test box supporting rod (20) and the corresponding gear box; the locking part is used for locking the test box supporting pin (3) and the test box supporting rod (1) or the main test box supporting pin (31) and the main test box supporting rod (20).

4. The device for testing the performance of a coupling and a gear box according to claim 1, characterized in that: The lateral force device comprises a lateral force support plate (13), a tension sensor (15), a lateral force pull rod (16) and a lateral force applying rod (17); the lateral force support plate (13) is movably connected with a main test box support pin (31); the tension sensor (15) is located between the lateral force support plate (13) and the lateral force pull rod (16); the lateral force applying rod (17) is movably connected with the tension sensor (15) after penetrating through the lateral force pull rod (16); and the lateral force applying rod (17) is threadedly connected with the lateral force pull rod (16).

5. The device for testing the performance of a coupling and a gear box according to claim 1, characterized in that: The vertical force device comprises a vertical force applying rod (7), a load sensor (8), a vertical force pressing plate (9) and a vertical pressure support plate (10); the bottom of the vertical pressure support plate (10) is connected with a main test gear box (12); the load sensor (8) is located between the vertical force pressing plate (9) and the vertical pressure support plate (10); the vertical force applying rod (7) is threadedly connected with a main test box support part sleeve (11) after penetrating through the vertical force pressing plate (9); and the vertical force pressing plate (9) is movably connected with the vertical force applying rod (7).

6. The apparatus for testing the performance of a coupling and a gear box according to claim 5, characterized in that: The top of the vertical pressure support plate (10) is provided with a concave surface (1001), the lower part is provided with an inclined plane (1003), and the two sides of the inclined plane (1003) are respectively provided with V-shaped surfaces (1002); the shape of the concave surface (1001) matches the shape and size of the bottom of the load sensor (8); the V-shaped surfaces (1002) and the inclined plane (1003) are used for connecting the vertical pressure support plate (10) with the main test gear box (12); and the two ends of the vertical force pressing plate (9) are provided with vertical force applying rods (7).

7. The device for testing the performance of a coupling and a gear box according to claim 1, characterized in that: The longitudinal force device comprises a longitudinal force support plate (21), a longitudinal force pull rod (23), a longitudinal force applying rod (24) and a tension sensor connected between the longitudinal force support plate (21) and the longitudinal force applying rod (24); one end of the longitudinal force support plate (21) is fixedly connected with the main test gear box (12), and the other end is fixedly connected with the tension sensor; the longitudinal force applying rod (24) is movably connected with the tension sensor after penetrating through the longitudinal force pull rod (23); and the longitudinal force applying rod (24) is threadedly connected with the longitudinal force pull rod (23).

8. A method for shaft coupling and gear box performance testing, characterized by, The device is realized by using any one of claims 1 to 7, comprising the following steps: The bottom plate (27) is fixedly connected with the test box support part sleeve (5), and the lateral force, the longitudinal force and the vertical force are respectively applied by adjusting the lateral force device, the longitudinal force device and the vertical force device; The bottom plate (27) is connected with the test box support part sleeve (5) through a displacement structure, so as to realize the axial and radial movement of the shaft coupling.

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