CN213749070U - Vertical testing machine for large-sized high-speed bearing - Google Patents
Vertical testing machine for large-sized high-speed bearing Download PDFInfo
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- CN213749070U CN213749070U CN202023082019.5U CN202023082019U CN213749070U CN 213749070 U CN213749070 U CN 213749070U CN 202023082019 U CN202023082019 U CN 202023082019U CN 213749070 U CN213749070 U CN 213749070U
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- 238000012360 testing method Methods 0.000 title claims abstract description 102
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- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000004088 simulation Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 3
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- 238000011160 research Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 241000233805 Phoenix Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
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- 210000003746 feather Anatomy 0.000 description 1
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- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
A vertical testing machine for large high-speed bearings relates to the technical field of bearing testing, and comprises a testing bearing body, a rack, a variable frequency motor, a main shaft seat, a loading system and a testing and controlling system; a main shaft seat is arranged in the frame, a vertical main shaft is rotatably connected in the main shaft seat through a test bearing, two ends of the main shaft extend out of the main shaft seat, a variable frequency motor for driving the main shaft is installed at the bottom of the main shaft, a test bearing seat is coaxially installed at the top of the main shaft, and an inner ring of a test bearing body is correspondingly coaxially and tightly sleeved with the test bearing seat; the loading system comprises a radial loading sleeve sleeved on the outer ring of the test bearing body and a loading disc arranged at the top of the test bearing body, wherein a radial oil cylinder correspondingly and fixedly connected with the rack is arranged on one side of the radial loading sleeve; the utility model discloses the working condition of the large-scale high-speed bearing of operating condition simulation that can laminate more has effectively improved the test precision.
Description
Technical Field
The utility model belongs to the technical field of the bearing test technique and specifically relates to a vertical testing machine of large-scale high-speed bearing is related to.
Background
As known, the bearing plays an important role in mechanical equipment, the equipment in the field of mechanical industry plays an important role in running, the bearing is used as a carrier for supporting the mechanical rotation, few parts can be directly rubbed with the parts in the running process, and the rotation precision is ensured; the large-diameter bearing is widely applied to the industries such as wind power generation, railway vehicles, metallurgical mines, petroleum machinery, engineering machinery and the like, the performance and the working reliability of the large-diameter bearing directly influence the motion performance and the reliability of mechanical equipment, and along with the development of high quality and high level of technological technology, the large-diameter bearing has higher requirements on various indexes of the bearing, is particularly more remarkable in the aerospace and military industries and requires higher motion performance, long service life and high reliability;
therefore, the bearing test becomes an important means for considering the reliability of the bearing before the bearing is put into use, and the situation that a user order of a host computer is obtained through a new product test becomes an industry trendPotential; the bearing test bed is used as special equipment for detecting the mechanical property and the reliability of the bearing, the performance of the bearing to be put into use can be correctly evaluated, a designer analyzes the failure reason of the bearing under a specific working condition according to test data, the designer timely grasps and corrects design parameters, the user of a host is guided to reasonably select the model, and unnecessary loss is reduced; in the last decade, numerous domestic and foreign bearing manufacturers make great progress in the aspect of bearing test technology research, accumulate abundant experience, various types of special bearing test beds are continuously appeared, but most of the special bearing test beds are small and medium-sized bearing test equipment with the inner diameter of phi within 200mm, a horizontal main shaft structure is generally adopted, large and super-large bearing test beds are relatively few, domestic existing stock equipment is mostly a turntable bearing test bed applied to the fields of wind driven generators, shield machines and engineering machinery, the size range of the bearing is between phi 1000mm and 4000mm, the test bearing is lubricated by grease, and the rotating speed is basically within 5 rpm; the experimental technical research on the large high-speed bearing is relatively less, and particularly, the dn value of the bearing reaches 1 multiplied by 106The relevant research of mm.r/min is the phoenix feather bone angle, the test platform satisfying the type is not concerned by people, and the number of the documents and the patents in the relevant fields is limited.
Disclosure of Invention
In order to overcome the deficiency in the background art, the utility model discloses a vertical testing machine of large-scale high-speed bearing.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a vertical testing machine for large-scale high-speed bearings comprises a testing bearing body, a rack, a variable frequency motor, a main shaft seat, a loading system and a measurement and control system; a main shaft seat is arranged in the frame, a vertical main shaft is rotatably connected in the main shaft seat through a test bearing, two ends of the main shaft extend out of the main shaft seat, a variable frequency motor for driving the main shaft is installed at the bottom of the main shaft, a test bearing seat is coaxially installed at the top of the main shaft, and an inner ring of a test bearing body is correspondingly coaxially and tightly sleeved with the test bearing seat; the loading system comprises a radial loading sleeve sleeved on the outer ring of the test bearing body and a loading disc arranged at the top of the test bearing body, wherein one side of the radial loading sleeve is provided with a radial oil cylinder correspondingly and fixedly connected with the rack, two axial oil cylinders are arranged at the top of the loading disc at intervals, and the two axial oil cylinders are symmetrically arranged about the axis of the main shaft; the test bearing body and the test-accompanying bearing are respectively provided with an independent lubricating oil supply system, the temperature of lubricating oil of the lubricating oil supply system of the test bearing body is between room temperature and 150 ℃, the lubricating oil supply system of the test bearing body is provided with an oil temperature heating device, and the temperature of lubricating oil of the lubricating oil supply system of the test-accompanying bearing is between room temperature and 50 ℃; the system of observing and controling contains vibration sensor, temperature sensor, collection unit and test control unit, vibration sensor and temperature sensor are all installed to experimental bearing body and the position of accompanying the examination bearing, vibration sensor, temperature sensor, inverter motor, radial hydro-cylinder and axial hydro-cylinder all correspond signal connection with the collection unit, the collection unit corresponds signal control with test control unit and is connected.
Preferably, tension and compression sensors are arranged between the radial oil cylinder and the radial loading sleeve and between the axial oil cylinder and the loading disc.
Preferably, the acquisition unit is an upper computer machine, and the test control unit is a lower computer PLC.
Preferably, the main shaft is in key connection with the test bearing seat.
Preferably, the main shaft is in corresponding driving connection with the variable frequency motor through a coupler.
Preferably, one side of the rack is provided with a stair frame.
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:
the utility model discloses a vertical testing machine of large-scale high-speed bearing, simple structure, easily assembly, manufacturing cost is lower, can realize drawing the pressure loading to test bearing body axial, radial, load is drawn pressure sensor test feedback, the precision is high, the error is little, can laminate the working condition of actual condition simulation test bearing body more; the construction of a high-temperature and high-speed working environment of the test bearing body can be realized through a loading system and a measurement and control system, meanwhile, the graphical display, the recording and the storage of technical parameters of the test bearing body can be realized, and a bearing test parameter database is automatically generated; the test bearing body and the test-accompanying bearing are respectively provided with an independent lubricating oil supply system, the lubricating oil temperature of the lubricating oil supply system of the test bearing body is room temperature to 150 ℃, the lubricating oil supply system of the test bearing body is provided with an oil temperature heating device, and the lubricating oil temperature of the lubricating oil supply system of the test-accompanying bearing is room temperature to 50 ℃.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic perspective view of the frame;
fig. 3 is a schematic structural view of a loading tray.
In the figure: 1. testing the bearing body; 2. a frame; 3. a variable frequency motor; 4. a main shaft; 5. a main shaft seat; 6. carrying out an accompanying test on the bearing; 7. testing the bearing seat; 8. a radial loading sleeve; 9. a loading tray; 10. a radial cylinder; 11. an axial cylinder; 12. a vibration sensor; 13. a temperature sensor; 14. a collection unit; 15. a test control unit; 16. a tension and compression sensor; 17. a coupling is provided.
Detailed Description
The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.
With reference to the attached drawings 1-3, the vertical testing machine for the large-sized high-speed bearing comprises a testing bearing body 1, a rack 2, a variable frequency motor 3, a main shaft 4, a main shaft seat 5, a loading system and a measurement and control system; frame 2 is vertical frame construction, is equipped with spindle drum 5 in the frame 2, be connected with vertical main shaft 4 through accompanying examination bearing 6 rotation in the spindle drum 5, and the both ends of main shaft 4 all stretch out spindle drum 5, inverter motor 3 who is used for driving main shaft 4 is installed to main shaft 4 bottom, 4 top coaxial arrangements of main shaft have experimental bearing frame 7, the inner circle of experimental bearing body 1 corresponds coaxial inseparable the cup jointing with experimental bearing frame 7, and inverter motor 3 can drive main shaft 4 rotatory promptly, and main shaft 4 can drive experimental bearing frame 7 and then drive the inner circle of experimental bearing body 1 rotatory, and inverter motor3 the frequency is adjusted by a frequency converter to realize that the test bearing body 1 can accurately run at 100-2000 rpm, and the dn value can reach 1.5 multiplied by 106mm·r/min；
The loading system comprises a radial loading sleeve 8 sleeved on the outer ring of the test bearing body 1 and a loading disc 9 arranged at the top of the test bearing body 1, wherein one side of the radial loading sleeve 8 is provided with a radial oil cylinder 10 correspondingly and fixedly connected with the rack 2, two axial oil cylinders 11 are arranged at the top of the loading disc 9 at intervals, the two axial oil cylinders 11 are symmetrically arranged about the axis of the main shaft 4, namely the radial oil cylinder 10 can press the radial loading sleeve 8 to apply radial force to the test bearing body 1, the two axial oil cylinders 11 can press the loading disc 9 to apply axial force to the test bearing body 1, and the loading system adopts a proportional servo hydraulic loading mode to load; as required, tension and compression sensors 16 are arranged between the radial oil cylinder 10 and the radial loading sleeve 8 and between the axial oil cylinder 11 and the loading disc 9, so that mutual calibration with pressure sensors of the corresponding radial oil cylinder 10 and axial oil cylinder 11 can be realized, and the accuracy and reliability of loading load are ensured; the test bearing body 1 and the test-accompanying bearing 6 are respectively provided with an independent lubricating oil supply system, the temperature of lubricating oil of the lubricating oil supply system of the test bearing body 1 is between room temperature and 150 ℃, and a real working environment can be modeled, so that the performance of the test bearing body 1 is accurately detected, the lubricating oil supply system of the test bearing body 1 is provided with an oil temperature heating device, the temperature of lubricating oil of the lubricating oil supply system of the test-accompanying bearing 6 is between room temperature and 50 ℃, the test-accompanying bearing 6 is in an optimal performance state, and interference influence on the test of the test bearing body 1 is avoided;
the measurement and control system comprises a vibration sensor 12, a temperature sensor 13, an acquisition unit 14 and a test control unit 15, the vibration sensor 12 and the temperature sensor 13 are respectively arranged at the positions of the test bearing body 1 and the test-accompanying bearing 6, the vibration sensor 12, the temperature sensor 13, the variable frequency motor 3, the radial oil cylinder 10 and the axial oil cylinder 11 are respectively in corresponding signal connection with the acquisition unit 14, and the acquisition unit 14 is in corresponding signal control connection with the test control unit 15; according to the requirement, the acquisition unit 14 is an upper computer machine, and the test control unit 15 is a lower computer PLC; in addition, the main shaft 4 is in key connection with the test bearing seat 7, the main shaft is in corresponding driving connection with the variable frequency motor 3 through the coupler 17, and for the test of bearings of different types, only the test bearing seat 7, the loading disc 9 and the radial loading sleeve 8 need to be replaced, so that the test cost can be saved, the test period can be shortened, and the test requirements of bearings of different types and different size ranges can be met; one side of the frame 2 is provided with a stair frame 18, so that the installation and operation of operators can be facilitated, and the observation of the operation condition of the bearing body 1 by the operators can be facilitated;
in the implementation of the vertical testing machine for the large-scale high-speed bearing, after the measurement and control program of the upper computer machine is started, the data of the vibration sensor 12, the temperature sensor 13, the variable frequency motor 3, the radial oil cylinder 10 and the axial oil cylinder 11 can be read, then the control commands of the rotating speed of the variable frequency motor 3, the loading load of the loading system, the lubricating oil flow of the lubricating oil supply system and the lubricating oil temperature are transmitted to the lower computer PLC by the upper computer machine through the OPC Server, the lower computer PLC transmits the rotating speed of the variable frequency motor 3 and the control signal of the loading load of the loading system to the frequency converter of the variable frequency motor 3 and the servo valve amplifier of the loading system by utilizing the ProfiNet communication mode so as to realize the control of the rotating speed of the variable frequency motor 3 and the loading load of the loading system, and transmits the lubricating oil flow and the temperature signal of the lubricating oil supply system to the flow valve and the intelligent temperature control instrument of the lubricating oil supply system through the analog output signal, the control of the flow and the temperature of the lubrication oil supply system is realized, so that the test bearing body 1 can operate according to a load spectrum; after the test bearing body 1 starts to operate normally, signal acquisition can be carried out, acquisition of the acquisition unit 14 is realized by two modes, wherein acquisition of signals of the vibration sensor 12 is realized by using a high-speed data acquisition card due to higher sampling frequency, the high-speed data acquisition card transmits acquired vibration data to an upper computer industrial personal computer in an Ethernet communication mode, acquisition of signals of temperature sensors 13, pressure, force and flow is carried out by a PLC analog input module due to lower sampling frequency, the acquired data is transmitted to an upper computer machine control machine through an OPC Server, the upper computer industrial personal computer simply processes the data acquired by the two modes, displays the data on a display interface, stores the data to be recorded, and facilitates subsequent analysis and processing of the test data.
The part of the utility model not detailed is prior art.
Claims (6)
1. The utility model provides a vertical testing machine of large-scale high-speed bearing, contains experimental bearing body (1), characterized by: the device also comprises a frame (2), a variable frequency motor (3), a main shaft (4), a main shaft seat (5), a loading system and a measurement and control system; a main shaft seat (5) is arranged in the rack (2), a vertical main shaft (4) is rotatably connected in the main shaft seat (5) through a test accompanying bearing (6), two ends of the main shaft (4) extend out of the main shaft seat (5), a variable frequency motor (3) for driving the main shaft (4) is installed at the bottom of the main shaft (4), a test bearing seat (7) is coaxially installed at the top of the main shaft (4), and an inner ring of the test bearing body (1) is correspondingly coaxially and tightly sleeved with the test bearing seat (7); the loading system comprises a radial loading sleeve (8) sleeved on the outer ring of the test bearing body (1) and a loading disc (9) arranged at the top of the test bearing body (1), wherein one side of the radial loading sleeve (8) is provided with a radial oil cylinder (10) correspondingly and fixedly connected with the rack (2), two axial oil cylinders (11) are arranged at the top of the loading disc (9) at intervals, and the two axial oil cylinders (11) are symmetrically arranged about the axis of the main shaft (4); the test bearing body (1) and the test-accompanying bearing (6) are respectively provided with an independent lubricating oil supply system, the temperature of lubricating oil of the lubricating oil supply system of the test bearing body (1) is between room temperature and 150 ℃, and the temperature of lubricating oil of the lubricating oil supply system of the test-accompanying bearing (6) is between room temperature and 50 ℃; measurement and control system contains vibration sensor (12), temperature sensor (13), collection unit (14) and test control unit (15), vibration sensor (12) and temperature sensor (13) are all installed to experimental bearing body (1) and the position of accompanying examination bearing (6), vibration sensor (12), temperature sensor (13), inverter motor (3), radial hydro-cylinder (10) and axial hydro-cylinder (11) all correspond signal connection with collection unit (14), collection unit (14) correspond signal control with test control unit (15) and are connected.
2. The vertical testing machine for large high-speed bearings according to claim 1, characterized in that: and tension and compression sensors (16) are arranged between the radial oil cylinder (10) and the radial loading sleeve (8) and between the axial oil cylinder (11) and the loading disc (9).
3. The vertical testing machine for large high-speed bearings according to claim 1, characterized in that: the acquisition unit (14) is an upper computer machine, and the test control unit (15) is a lower computer PLC.
4. The vertical testing machine for large high-speed bearings according to claim 1, characterized in that: the main shaft (4) is connected with the test bearing seat (7) in a key mode.
5. The vertical testing machine for large high-speed bearings according to claim 1, characterized in that: the main shaft is correspondingly connected with the variable frequency motor (3) in a driving way through a coupler (17).
6. The vertical testing machine for large high-speed bearings according to claim 1, characterized in that: one side of the frame (2) is provided with a stair frame (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023082019.5U CN213749070U (en) | 2020-12-21 | 2020-12-21 | Vertical testing machine for large-sized high-speed bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023082019.5U CN213749070U (en) | 2020-12-21 | 2020-12-21 | Vertical testing machine for large-sized high-speed bearing |
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| Publication Number | Publication Date |
|---|---|
| CN213749070U true CN213749070U (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023082019.5U Active CN213749070U (en) | 2020-12-21 | 2020-12-21 | Vertical testing machine for large-sized high-speed bearing |
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| Country | Link |
|---|---|
| CN (1) | CN213749070U (en) |
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- 2020-12-21 CN CN202023082019.5U patent/CN213749070U/en active Active
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Address after: 471039 No. 96, Jianxi, Luoyang District, Henan, Jianshe Road Patentee after: Luoyang Bearing Group Co.,Ltd. Country or region after: China Address before: 471039 No. 96, Jianxi, Luoyang District, Henan, Jianshe Road Patentee before: LUOYANG LYC BEARING Co.,Ltd. Country or region before: China |