CN217155839U - Vibration testing device for rail vehicle gear parts - Google Patents
Vibration testing device for rail vehicle gear parts Download PDFInfo
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- CN217155839U CN217155839U CN202220752191.7U CN202220752191U CN217155839U CN 217155839 U CN217155839 U CN 217155839U CN 202220752191 U CN202220752191 U CN 202220752191U CN 217155839 U CN217155839 U CN 217155839U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Abstract
A vibration testing device for rail vehicle gear parts comprises a plate group, wherein the plate group comprises a bottom plate, a vertical plate vertically fixedly connected with the bottom plate, a bearing wheel bearing seat vertically fixedly connected with the bottom plate and the vertical plate respectively, and a top plate arranged at the top of the bottom plate; the bearing assembly is rotatably connected between the two bearing wheel bearing seats and is provided with two symmetrical bearing wheels; the loading assembly is arranged above the bearing assembly and at least comprises two symmetrical loading wheels and an adjusting rod piece, the adjusting rod piece is rotatably connected with the vertical plate, the loading wheels are rotatably connected with the adjusting rod piece, the loading wheels are in transmission connection with the bearing wheels, and a driving piece is fixedly connected to the top plate and is in transmission connection with the loading wheel set; wherein, the regulating rod piece is adjusted, so that the load of the load-bearing wheel is adjustable. The load of the loading wheel on the bearing wheel is adjusted by adopting the adjusting rod piece, all the gravity of the gear box is borne by the output shaft, and the simulation effect is close to the stress condition of the actual railway vehicle component.
Description
Technical Field
The utility model belongs to the technical field of the test, specifically speaking relates to a vibration testing arrangement of rail vehicle gear part.
Background
Nowadays, the availability of rail transit has become one of the signs of modern cities, and whether the traffic volume reaches a certain proportion also becomes one of the signs of measuring the international metropolis. The rail transit is to ensure the safe transportation of passengers, and the safety is wealth, resources and productivity. With the rapid development of rail transit in China, rail vehicles are used as direct carriers of passengers, and the safety of the rail vehicles is closely related to the life safety of the passengers. In recent years, the complexity of rail transit vehicle equipment is higher and higher, and the failure rate is higher and higher. Gears and transmissions play a very important role in vehicle mechanical equipment. They are not only used for connection, but also are indispensable components for transmitting the form of motion and power. The structure is complex, the working conditions are variable, the working environment is severe, the device can run at high speed for a long time, and is easy to damage and cause faults, so that the whole device is damaged, and economic loss and even accidents are caused. According to statistics, gear faults account for 80% of faults of rotary mechanical equipment, and the fault form caused by vibration in the operation and use process accounts for about 43%. The vibration of the gear may be generally divided into circumferential vibration, radial vibration, and axial vibration, and various vibration forms and defects will be expressed in different forms. Detection using vibration signals is the most common analytical method. Therefore, the development of an efficient, scientific and intelligent monitoring and diagnosing technology for the early vibration fault of the mechanical system has important engineering and practical significance.
Although some vibration testing devices for rail vehicle gear parts have appeared, the existing vibration testing devices for rail vehicle gear parts have some defects, on one hand, the actual use environments of the gear parts and the gear box cannot be well simulated, and on the other hand, the load loading mode is not well simulated, which mainly appears in the following aspects: 1. the operation difficulty of adjusting the applied load is large, and the experience is insufficient; 2. the simulation difficulty is high under the condition that the axle box gravity is completely applied to the axle; 3. because the structure of the loading device is complicated and the cost is high, how to carry out the optimized rail vehicle gear part vibration test device is the key technical problem to be solved by the project of the application.
In view of the above, it is necessary to develop a vibration testing apparatus for rail vehicle gear components to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a vibration testing arrangement of rail vehicle gear part for solve the problem that adds the load in the simulation rail vehicle test.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
vibration testing device for rail vehicle gear parts comprises
The plate group comprises a bottom plate, a vertical plate vertically and fixedly connected with the bottom plate, bearing wheel bearing seats respectively and vertically and fixedly connected with the bottom plate and the vertical plate, and a top plate arranged at the top of the bottom plate;
the bearing assembly is rotatably connected between the two bearing wheel bearing seats and is provided with two symmetrical bearing wheels;
the loading subassembly, its setting is in the top of bearing subassembly, the loading subassembly includes the loading wheel and the regulating lever of two symmetries at least, the regulating lever with the riser rotates to be connected, the loading wheel with the regulating lever rotates to be connected, the loading wheel with the bearing wheel transmission is connected to and
the driving piece is fixedly connected to the top plate and is in transmission connection with the loading wheel set;
and adjusting the adjusting rod piece to enable the load bearing wheel to be adjustable in load of the loading wheel.
Further, the regulating rod member comprises
One end of the loading wheel bearing seat is rotationally connected with the vertical plate;
the loading rod is fixedly connected to the other end of the loading wheel bearing seat; and
the upper adjusting rod penetrates through the loading rod and is in threaded connection with a nut, the lower adjusting rod is abutted against the bottom plate, and a digital display push-pull dynamometer is arranged between the upper adjusting rod and the lower adjusting rod.
Furthermore, a mounting groove is formed in the position, close to the lower adjusting rod, of the bottom plate, and the head of the lower adjusting rod abuts against the notch of the mounting groove.
Further, the digital display push-pull dynamometer is an S-shaped digital display push-pull dynamometer.
Furthermore, the loading assembly further comprises a gear box, the gear box is in transmission connection with the driving piece, the loading wheels are arranged on output shafts on two sides of the gear box, and the output shafts of the gear box are in rotary connection with the loading wheel bearing seats.
Further, an elastic gasket is arranged between the gear box and the top plate.
Further, a gear assembly is arranged in the gear box, and a sensor is arranged on the gear assembly.
Furthermore, a plurality of height-adjustable bases are uniformly arranged at the bottom of the bottom plate.
Further, the axis of the loading wheel is parallel to the axis of the bearing wheel, and the diameter of the loading wheel is smaller than that of the bearing wheel.
Furthermore, a groove is formed in the position, corresponding to the bearing wheel, of the bottom plate, and the bearing wheel is partially immersed in the groove.
Compared with the prior art, the beneficial effects of the utility model reside in that: 1. the load of the loading wheel on the bearing wheel is adjusted by the adjusting rod piece, and all gravity of the gear box is borne by the output shaft, so that the simulation effect is closer to the stress condition of the actual rail vehicle component; 2. the digital display push-pull dynamometer is arranged on the adjusting rod piece, and when the load is adjusted through the nut, accurate data of the load can be visually obtained, so that the use is convenient; 3. the driving part in the application adopts the variable frequency motor, so that the vibration fault of the gear of the rail vehicle at different rotating speeds can be simulated, and the use range is expanded; 4. the setting of bearing wheel part in this application reduces the holistic focus of device in the recess of bottom plate for device safe and reliable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a vibration testing apparatus for a rail vehicle gear component according to an embodiment of the present invention;
fig. 2 is a front view of a vibration testing apparatus for a rail vehicle gear component according to an embodiment of the present invention;
fig. 3 is a top view of a vibration testing device for a rail vehicle gear component according to an embodiment of the present invention.
Reference numerals and component parts description referred to in the drawings:
1-a bottom plate; 101-mounting grooves; 2-a base; 3-a vertical plate; 5-loading the wheel bearing seat; 6-bearing wheel bearing seat; 7-a bearing wheel; 8-a load bearing wheel shaft; 9-a loading rod; 10-lower adjustment lever; 11-digital display push-pull dynamometer; 12-upper adjusting rod; 13-a nut; 14-a loading wheel; 15-sliding bearing seats; 16-a pin shaft; 17-a gearbox; 19-an output shaft; 20-a drive member; 21-a support seat; 22-a top plate; 23-a resilient gasket; 24-a first pulley; 25-a belt; 26-a second pulley; 27-a transmission shaft.
Detailed Description
The technical solution of the present invention will be described clearly and completely through the following detailed description. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 to 3, a vibration testing apparatus for rail vehicle gear components comprises a plate pack, a load bearing assembly, a loading assembly and a driving member 20.
The plate group comprises a bottom plate 1, a top plate 22, a vertical plate 3 and two symmetrical bearing wheel bearing seats 6, wherein the vertical plate 3 is fixedly connected with the bottom plate 1 vertically, extension sections of the bearing wheel bearing seats 6 in all directions are fixedly connected with the bottom plate 1 and the vertical plate 3 vertically respectively, the top plate 22 is arranged at the top of the bottom plate 1, one side of the top plate 22 is fixedly connected with the vertical plate 3, the other side of the top plate 22 is fixedly connected with one side edge of the bottom plate 1 through a supporting seat 21, and the top plate 22 is arranged in parallel with the bottom plate 1.
Preferably, a plurality of bases 2 are uniformly arranged at the bottom of the bottom plate 1, the heights of the bases 2 can be freely adjusted, and meanwhile, the effects of vibration reduction and vibration absorption of the bases are improved.
The bearing assembly is arranged on the bottom plate 1, specifically, the bearing assembly is provided with two symmetrical bearing wheels 7, bearing wheel bearings are arranged in the bearing wheel bearing seats 6, bearing wheel bearing covers are arranged on the outer sides of the bearing wheel bearing seats 6 to limit axial movement of the bearing wheel bearings, bearing wheel shafts 8 penetrate between the two bearing wheels 7, two sides of each bearing wheel shaft 8 are connected with the bearing wheel bearings, the two bearing wheels 7 are arranged between the two bearing wheel bearing seats 6, and the two bearing wheels 7 rotate relative to the two bearing wheel bearing seats 6. Preferably, the bottom plate 1 is provided with a groove corresponding to the position of the bearing wheel 7, and the bearing wheel 7 is partially immersed in the groove, so that the center of gravity of the whole device is lowered, and the operation of the device is safe and reliable.
The loading assembly is arranged above the bearing assembly and comprises two symmetrical loading wheels 14, a gear box 17 and an adjusting rod piece, the adjusting rod piece is rotatably connected with the vertical plate 3, the loading wheels 14 and the adjusting rod piece rotate relatively, the loading wheels 14 are in transmission connection with the bearing wheels 7, the axes of the loading wheels 14 are parallel to the axes of the bearing wheels 7, the diameters of the loading wheels 14 are smaller than the diameters of the bearing wheels 7, the gear box 17 is arranged between the two loading wheels 14, and the gear box 17 is in transmission connection with a driving piece 20, wherein the adjusting rod piece is adjusted, so that the load of the bearing wheels 7 on the loading wheels 14 is adjustable.
Specifically, the adjusting rod piece comprises a loading wheel bearing seat 5, a loading rod 9, an upper adjusting rod 12 and a lower adjusting rod 10, wherein an extending section at one end of the loading wheel bearing seat 5 is rotatably connected with the vertical plate 3, the loading rod 9 is fixedly connected with an extending section at the other end of the loading wheel bearing seat 5, namely the loading rod 9 is fixedly connected between the two loading wheel bearing seats 5, furthermore, a sliding bearing seat 15 is fixedly connected to one side, close to the loading wheel bearing seat 5, of the top of the vertical plate 3, and the loading wheel bearing seat 5 is rotatably connected to the sliding bearing seat 15 of the vertical plate 3 through a pin shaft 16; the upper adjusting rod 12 penetrates through the loading rod 9 and is in threaded connection with a nut 13, the lower adjusting rod 10 is abutted with the bottom plate 1, a digital display push-pull dynamometer 11 is arranged between the upper adjusting rod 12 and the lower adjusting rod 10, a mounting groove 101 is formed in the position, close to the lower adjusting rod 10, of the bottom plate 1, the head of the lower adjusting rod 10 is abutted to the notch of the mounting groove 101, when the nut 13 is rotated to adjust the upper adjusting rod 12, the load of the loading wheel 14 on the bearing wheel 7 changes immediately, meanwhile, the lower adjusting rod 10 can be laterally mounted through the mounting groove 101, the assembling requirement is further met, preferably, the digital display push-pull dynamometer 11 is an S-shaped digital display push-pull dynamometer and can directly display the size of the load of the loading wheel 14, operators can conveniently and accurately adjust the upper adjusting rod 12, and the accuracy of a test is guaranteed.
Bearing on, be provided with the loading wheel bearing in the loading wheel bearing frame 5, the outside of loading wheel bearing frame 5 is provided with the loading wheel bearing lid to the drunkenness of restriction loading wheel bearing, the both sides of gear box 17 are provided with output shaft 19, set up loading wheel 14 on the output shaft 19, the tip and the loading wheel bearing of output shaft 19 rotate and are connected for loading wheel 14 can rotate relative to loading wheel bearing frame 5.
It is on bearing, gear box 17 sets up on roof 22, is provided with the gear assembly in the gear box 17, and the gear assembly is connected on gear box 17's output shaft 19 and transmission shaft 27, and each gear engagement in the gear assembly is connected, and gear box 17's output shaft 19 demountable assembly, easy to assemble still is provided with the sensor on the gear assembly to gather the vibration signal when the gear rotates, be provided with elastic washer 23 between gear box 17 and the roof 22. It should be noted that the gear box 17 is used for simulating an actual rail vehicle axle box suspension device, the elastic washer 23 is used for simulating elastic contact between wheel rails so as to research the influence generated by a vibration signal detected by a vehicle gear assembly under the condition of elastic contact of the wheel rails in an actual rail vehicle running environment, the actual gravity load of the gear box 17 is transmitted to the loading wheel 14 through the output shaft 19 and then transmitted to the bearing wheel 7 through the loading wheel 14, the actual gravity load of the gear box 17 is not applied to the top plate 22, and the design conforms to the actual wheel environment.
During testing, the nut 13 arranged on the upper adjusting rod 12 is rotated to adjust the load required by the test, and the loading assembly can be used for simulating the body and the load of a railway vehicle and simulating the load transmission mode perpendicular to the railway in the actual running of the vehicle.
Specifically, a first belt wheel 24 is fixedly connected to a transmission shaft 27 of the gear box 17, the driving member 20 is fixedly connected to the top plate 22, a sliding groove is formed in the position, corresponding to the driving member 20, of the top plate 22, the center distance is adjusted by adjusting the position of the driving member 20, so that the function requirement is met, a second belt wheel 26 is fixedly connected to an output end of the driving member 20, and the first belt wheel 24 is in transmission connection with the second belt wheel 26 through a belt 25. The driving part 20 is a variable frequency motor, and the output rotating speed range is 0-3000 r/min. The frequency converter is used for controlling the motor to output different rotating speeds, so that fault simulation of the rail vehicle gear component at different rotating speeds can be met.
It should be noted that the loading wheel bearing and the gear assembly in the gear box 17 can be replaced, so that the fault detection test of other gear components and roller bearings commonly used in railway vehicles can be simulated.
The working steps are as follows:
1. sequentially connecting each component;
2. before the actual rail vehicle bearing fault diagnosis, the centering and balancing of the test device are calibrated to check whether the components are loosened, whether the test device is placed stably and whether each interface is reliable, and before the driving part 20 is started, a protective cover of the test bed needs to be covered to ensure safety;
3. the preload radial load is set by adjusting the upper adjustment rod 12, the lower adjustment rod 10 and the nut 13, and the torque is set by the driving member 20; 4. the activation of the drive 20 causes the gear assembly within the gearbox 17 to rotate and to pass a sensor or pick up a vibration signal from the gear assembly within the gearbox 17.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A vibration testing device for rail vehicle gear parts is characterized by comprising
The plate group comprises a bottom plate, a vertical plate vertically and fixedly connected with the bottom plate, bearing wheel bearing seats respectively and vertically and fixedly connected with the bottom plate and the vertical plate, and a top plate arranged at the top of the bottom plate;
the bearing assembly is rotatably connected between the two bearing wheel bearing seats and is provided with two symmetrical bearing wheels;
the loading subassembly, its setting is in the top of bearing subassembly, the loading subassembly includes the loading wheel and the regulating lever of two symmetries at least, the regulating lever with the riser rotates to be connected, the loading wheel with the regulating lever rotates to be connected, the loading wheel with the bearing wheel transmission is connected to and
the driving piece is fixedly connected to the top plate and is in transmission connection with the loading wheel set;
and adjusting the adjusting rod piece to enable the load bearing wheel to be adjustable in load of the loading wheel.
2. The apparatus of claim 1, wherein the adjustment lever comprises a lever arm
One end of the loading wheel bearing seat is rotationally connected with the vertical plate;
the loading rod is fixedly connected to the other end of the loading wheel bearing seat; and
the upper adjusting rod penetrates through the loading rod and is in threaded connection with a nut, the lower adjusting rod is abutted to the bottom plate, and a digital display push-pull dynamometer is arranged between the upper adjusting rod and the lower adjusting rod.
3. The vibration testing device of a rail vehicle gear part according to claim 2, wherein a mounting groove is provided on the bottom plate near the lower adjusting rod, and the head of the lower adjusting rod abuts against the notch of the mounting groove.
4. The device for testing the vibration of a rail vehicle gear component according to claim 2, wherein the digital push-pull dynamometer is an S-shaped digital push-pull dynamometer.
5. The apparatus for testing vibration of a rail vehicle gear member according to claim 2, wherein the loading assembly further comprises a gear box, the gear box is in transmission connection with the driving member, the loading wheels are arranged on output shafts on both sides of the gear box, and the output shaft of the gear box is in rotational connection with the loading wheel bearing seat.
6. A vibration testing arrangement for a rail vehicle gear member according to claim 5, wherein a resilient washer is provided between the gearbox and the top plate.
7. A vibration testing arrangement for rail vehicle gear components according to claim 5, characterized in that a gear assembly is provided in the gearbox, which gear assembly is provided with a sensor.
8. The apparatus for testing the vibration of a rail vehicle gear member according to claim 1, wherein a plurality of height-adjustable pedestals are uniformly arranged at the bottom of the base plate.
9. A vibration testing apparatus for a rail vehicle gear member according to claim 1 wherein the axis of the load wheel is parallel to the axis of the load wheel and the diameter of the load wheel is less than the diameter of the load wheel.
10. The apparatus according to claim 1, wherein the base plate is provided with a groove corresponding to the bearing wheel, and the bearing wheel is partially submerged in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220752191.7U CN217155839U (en) | 2022-04-02 | 2022-04-02 | Vibration testing device for rail vehicle gear parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220752191.7U CN217155839U (en) | 2022-04-02 | 2022-04-02 | Vibration testing device for rail vehicle gear parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217155839U true CN217155839U (en) | 2022-08-09 |
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ID=82698412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220752191.7U Active CN217155839U (en) | 2022-04-02 | 2022-04-02 | Vibration testing device for rail vehicle gear parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217155839U (en) |
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2022
- 2022-04-02 CN CN202220752191.7U patent/CN217155839U/en active Active
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