CN214584034U - Bearing fault diagnosis experiment table - Google Patents
Bearing fault diagnosis experiment table Download PDFInfo
- Publication number
- CN214584034U CN214584034U CN202120829557.1U CN202120829557U CN214584034U CN 214584034 U CN214584034 U CN 214584034U CN 202120829557 U CN202120829557 U CN 202120829557U CN 214584034 U CN214584034 U CN 214584034U
- Authority
- CN
- China
- Prior art keywords
- bearing
- side wall
- attached
- loading
- transmission shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model discloses a bearing fault diagnosis experiment table, which comprises an experiment table, and a driving device and a loading device which are arranged in the experiment table; the driving device comprises a speed regulating motor, an elastic coupling, a flat key and a transmission shaft; the utility model discloses a buncher simulates multiple rotational speed and load operating mode with loading device, tests the antifriction bearing reliability under the multiple operating mode. A plurality of sensors are additionally arranged on the experiment table to acquire the running data of the bearing under multiple working conditions, and the running data is used for fault diagnosis research of the rolling bearing. The experiment table improves the service life of the transmission shaft through a bearing loading mode of a non-cantilever structure. By designing the double-split bearing seat with the embedded felt ring bearing end cover, the service life of the supporting bearing is prolonged by isolating the supporting bearing from the external dust pipe diameter as far as possible. The method has positive significance for the development of the discipline of monitoring the state of the mechanical equipment and diagnosing the fault and the promotion of the reliability research of the national mechanical equipment.
Description
Technical Field
The utility model relates to a reliability experiment device technical field of mechanical equipment key spare part especially relates to a bearing failure diagnosis laboratory bench.
Background
A bearing is widely used in various applications as a key component of a rotary machine. And rolling bearings are one of the most vulnerable parts to failure or malfunction in various devices due to their structural characteristics. For most rotating machines, failure of their bearings will necessarily result in the loss or loss of some of their functions. Particularly for precision equipment such as five-axis machining centers. If the supporting bearing of the main shaft fails, abnormal vibration of the main shaft is caused, the processing quality of parts is reduced, even the processing function of the parts is lost, the working efficiency of a machine tool is reduced, or the machine tool is stopped. Most of precise five-axis machining centers are imported devices, maintenance period is long after faults occur, even after the faults occur, after-sales engineers need to be invited to stay in a factory for maintenance, production efficiency of the factory is greatly reduced, product income is reduced, and unnecessary production expenditure such as maintenance is increased. Secondly, if the bearing fails, even if the failure causes small abnormal vibration, the bearing can cause large vibration at other positions in the rear part of the transmission chain, so that the performance of other parts is weakened, the service life is reduced, and even the bearing fails. This is very irreparable simply because a very minor component failure causes many more important component failures, significantly increasing maintenance costs and possibly even significantly reducing the overall lifetime. Finally, if the bearing fails in many large-scale mechanical equipment, the whole machine is even destroyed to cause serious safety accidents, so that casualties and irretrievable loss are caused.
Based on the traditional bearing fault diagnosis experiment table, the transmission shaft is prone to fracture under the action of alternating stress when working for a long time, the service life of a supporting bearing which plays a non-testing role is short, and therefore the bearing fault diagnosis experiment table is provided for solving the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving among the prior art transmission shaft long-time work and easily breaking down under the alternating stress effect, undertake the shorter problem of supporting bearing life of non-test effect, and the bearing failure diagnosis laboratory bench that provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a bearing fault diagnosis experiment table comprises an experiment table, a driving device and a loading device, wherein the driving device and the loading device are arranged in the experiment table;
the driving device comprises a speed regulating motor, an elastic coupling, a flat key and a transmission shaft; the end part of the output shaft of the speed regulating motor is attached to one end of the transmission shaft, and the outer side wall of the output shaft of the speed regulating motor is attached to the inner side wall of the elastic coupling; the inner side wall of the elastic coupling is attached to the outer side wall of the flat key; the outer side wall of the flat key is attached to an output shaft of the speed regulating motor, and the outer side wall of the flat key is attached to one end of the transmission shaft; one end of the transmission shaft is attached to the inner side wall of the elastic coupling;
the loading device comprises a test bearing, a loading sleeve, a second inner hexagon screw, a loading nut, a force transmission small shaft and a conduction assembly; the outer side wall of the test bearing is fixedly connected with the inner side wall of the loading sleeve; the top of the loading sleeve is attached to the second socket head cap screw; the outer side wall of the second inner hexagon screw is attached to the inner side wall of the loading nut; the inner side wall of the loading nut is movably connected with the outer side wall of the force transmission small shaft.
Preferably, the conducting assembly comprises a pressure sensor, a seventh socket head cap screw and a sliding loading block; the pressure sensor is mounted on the sliding loading block through the seventh socket head cap screw.
Preferably, the experiment table comprises a bottom plate, a third socket head cap screw is arranged at the bottom of the bottom plate, the bottom of the bottom plate is attached with an adjustable foot cup, the top of the bottom plate is provided with a fourth inner hexagon screw, the top of the bottom plate is provided with a fifth inner hexagon screw, the top of the bottom plate is jointed with a lower half seat, the top of the lower half seat is jointed with an upper half seat, the top of the upper half seat is provided with a sixth inner hexagon screw, the top of the bottom plate is jointed with a duplex split bearing seat, one end of the duplex split bearing seat is jointed with a first bearing end cover, a second bearing end cover is attached to the other end of the duplex split bearing seat, oil-immersed felt rings are embedded in the side walls of the first bearing end cover and the second bearing end cover, the outer side wall of the second bearing end cover is provided with a first inner hexagon screw, and the inner side wall of the duplex split type bearing seat is attached with a supporting bearing.
Preferably, the other end of the transmission shaft is attached with a stop washer, the other end of the transmission shaft is provided with a round nut, and the outer side wall of the loading sleeve is provided with a cylindrical pin.
Preferably, the inside wall of oil-immersed felt with the outside wall laminating of transmission shaft, support bearing's inside wall with the outside wall laminating of transmission shaft, the outside wall of the other end of transmission shaft with the inside wall laminating of test bearing.
Preferably, the speed regulating motor is connected with the bottom plate through a fifth hexagon socket head cap screw, the duplex split bearing seat is connected with the bottom plate through a fourth hexagon socket head cap screw, the loading sleeve is connected with the bottom plate through a third hexagon socket head cap screw, and the first bearing end cover, the second bearing end cover and the duplex split bearing seat are connected through a first hexagon socket head cap screw.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a buncher simulates multiple rotational speed and load operating mode with loading device, tests the antifriction bearing reliability under the multiple operating mode. A plurality of sensors are additionally arranged on the experiment table to acquire the running data of the bearing under multiple working conditions, and the running data is used for fault diagnosis research of the rolling bearing. The experiment table improves the service life of the transmission shaft through a bearing loading mode of a non-cantilever structure. By designing the double-split bearing seat with the embedded felt ring bearing end cover, the service life of the supporting bearing is prolonged by isolating the supporting bearing from the external dust pipe diameter as far as possible. The method has positive significance for the development of the discipline of monitoring the state of the mechanical equipment and diagnosing the fault and the promotion of the reliability research of the national mechanical equipment.
Drawings
Fig. 1 is a schematic front structural view of a bearing fault diagnosis experiment table provided by the present invention;
fig. 2 is a schematic view of a front structure of a dual-split bearing seat of a bearing fault diagnosis experiment table provided by the present invention;
fig. 3 is the utility model provides a loading module structure schematic diagram of bearing fault diagnosis laboratory bench.
In the figure: the device comprises a speed regulating motor 1, an elastic coupling 2, a flat key 3, a first bearing end cover 4, an oil-immersed felt ring 5, a first inner hexagonal screw 6, a supporting bearing 7, a duplex split bearing seat 8, a second bearing end cover 9, a testing bearing 10, a loading sleeve 11, a second inner hexagonal screw 12, a loading nut 13, a force transmission small shaft 14, a stop washer 15, a round nut 16, a transmission shaft 17, a third inner hexagonal screw 18, an adjustable foot cup 19, a fourth inner hexagonal screw 20, a bottom plate 21, a fifth inner hexagonal screw 22, an upper seat 23, a lower seat 24, a sixth inner hexagonal screw 25, a pressure sensor 26, a seventh inner hexagonal screw 27, a sliding loading block 28 and a cylindrical pin 29.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, a bearing fault diagnosis experiment table comprises an experiment table, and a driving device and a loading device which are arranged in the experiment table;
the driving device comprises a speed regulating motor 1, an elastic coupling 2, a flat key 3 and a transmission shaft 17; the end part of the output shaft of the speed regulating motor 1 is attached to one end of the transmission shaft 17, and the outer side wall of the output shaft of the speed regulating motor 1 is attached to the inner side wall of the elastic coupling 2; the inner side wall of the elastic coupling 2 is attached to the outer side wall of the flat key 3; the outer side wall of the flat key 3 is attached to an output shaft of the speed regulating motor 1, and the outer side wall of the flat key 3 is attached to one end of the transmission shaft 17; one end of the transmission shaft 17 is attached to the inner side wall of the elastic coupling 2;
the loading device comprises a test bearing 10, a loading sleeve 11, a second socket head cap screw 12, a loading nut 13, a force transmission small shaft 14 and a conducting component; the outer side wall of the test bearing 10 is fixedly connected with the inner side wall of the loading sleeve 11; the top of the loading sleeve 11 is attached to a second socket head cap screw 12; the outer side wall of the second socket head cap screw 12 is attached to the inner side wall of the loading nut 13; the inner side wall of the loading nut 13 is movably connected with the outer side wall of the force transmission small shaft 14.
Wherein, the conducting assembly comprises a pressure sensor 26, a seventh socket head cap screw 27 and a sliding loading block 28; the pressure sensor 26 is mounted on a sliding loading block 28 by a seventh socket head cap screw 27.
The experiment table comprises a bottom plate 21, a third inner hexagon screw 18 is arranged at the bottom of the bottom plate 21, an adjustable foot cup 19 is attached to the bottom of the bottom plate 21, a fourth inner hexagon screw 20 is arranged at the top of the bottom plate 21, a fifth inner hexagon screw 22 is arranged at the top of the bottom plate 21, a lower half seat 24 is attached to the top of the bottom plate 21, an upper half seat 23 is attached to the top of the lower half seat 24, a sixth inner hexagon screw 25 is arranged at the top of the upper half seat 23, a double split bearing seat 8 is attached to the top of the bottom plate 21, a first bearing end cover 4 is attached to one end of the double split bearing seat 8, a second bearing end cover 9 is attached to the other end of the double split bearing seat 8, an oil immersion felt ring 5 is embedded in the side walls of the first bearing end cover 4 and the second bearing end cover 9, a first inner hexagon screw 6 is arranged on the outer side wall of the second bearing end cover 9, and a supporting bearing 7 is attached to the inner side wall of the double split bearing seat 8.
Wherein, the other end of transmission shaft 17 is laminated with lock washer 15, and the other end of transmission shaft 17 is provided with round nut 16, and the lateral wall of loading cover 11 is provided with cylindric lock 29.
Wherein, the inside wall of oily felt 5 is laminated with the outside wall of transmission shaft 17 mutually, and the inside wall of support bearing 7 is laminated with the outside wall of transmission shaft 17 mutually, and the outside wall of the other end of transmission shaft 17 is laminated with the inside wall of test bearing 10 mutually.
The speed regulating motor 1 is connected with the bottom plate 21 through a fifth hexagon socket head cap screw 22, the double split bearing seat 8 is connected with the bottom plate 21 through a fourth hexagon socket head cap screw 20, the loading sleeve 11 is connected with the bottom plate 21 through a third hexagon socket head cap screw 18, and the first bearing end cover 4, the second bearing end cover 9 and the double split bearing seat 8 are connected through a first hexagon socket head cap screw 6.
The utility model discloses in to buncher 1 is as the power supply, transmits the moment of torsion for transmission shaft 17 through elastic coupling 2 and flat key 3. The transmission shaft 17 is in transition fit with the support bearing 7 and is installed in a double split bearing seat 8, the front view of the structure of the double split bearing seat 8 is shown in fig. 2, the upper half seat 23 and the lower half seat 24 are connected through a sixth hexagon socket head cap screw 25, and the support bearing 7 and the transmission shaft 17 are connected. The first bearing end cap 4 is fastened to the double split bearing housing 8 by a first socket head cap 6, and plays a role of fastening the support bearing 7. The bearing end cover is embedded with an oil-immersed felt ring 5, so that dust is prevented from entering a supporting bearing 7 to cause accelerated wear or failure of the bearing. The second bearing end cap 9 only takes over the sealing function.
The test bearing 10 is a rolling bearing with a jackscrew on an inner ring, the bearing is in clearance or transition fit with the transmission shaft 17, and the bearing is fixed on the shaft through the jackscrew, so that the bearing is convenient to disassemble and assemble. In order to fix the bearing more firmly and reliably, a stop washer 15 for a round nut is matched with a round nut 16 in a shaft neck at the tail end of a transmission shaft 17 for axially fastening the test bearing 10. The outer ring of the test bearing 10 is arranged in a loading sleeve 11, the upper end of the loading sleeve 11 is provided with a loading nut 13 through a second inner hexagon screw 12, and the nut can be processed by selecting wear-resistant alloy such as ZCuSn10Zn2 and the like as a blank material. The loading nut 13 is matched with the thread on the small force transmission shaft 14 for transmitting acting force. The specific structure of the loading sleeve 11 is shown in fig. 3, and a square plane is milled at the upper end of the small force transmission shaft 14 to be matched with a square wrench for use, so that manual simulation loading is realized. The force transmission small shaft 14 moves downwards to press the pressure sensor 26, the pressure sensor 26 is installed on the sliding loading block 28 through the seventh hexagon socket head cap screw 27, and the sliding loading block 28 applies force to the test bearing 10. The two sides of the sliding loading block 28 are provided with guide grooves which are matched with a cylindrical pin 29 arranged on the loading sleeve 11 for use, so that the guide effect on the sliding block is achieved. The forces acting on the test bearing 10 are made more consistent.
The loading sleeve 11 is mounted on the base plate 21 by means of a third socket head cap screw 18. The double split bearing housing 8 is mounted on a base plate 21 by a fourth socket head cap screw 20. The adjustable speed motor 1 is installed on the bottom plate 21 through a fifth hexagon socket head cap screw 22. The base plate 21 is placed on the installation floor by means of the adjustable foot cup 19. The bottom plate 21 can be stably and horizontally placed by screwing the nut on the adjustable foot cup 19, and the rubber at the bottom of the adjustable foot cup 19 plays a role in damping and buffering of the experiment table.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The bearing fault diagnosis experiment table is characterized by comprising an experiment table, a driving device and a loading device, wherein the driving device and the loading device are arranged in the experiment table;
the driving device comprises a speed regulating motor (1), an elastic coupling (2), a flat key (3) and a transmission shaft (17); the end part of the output shaft of the speed regulating motor (1) is attached to one end of the transmission shaft (17), and the outer side wall of the output shaft of the speed regulating motor (1) is attached to the inner side wall of the elastic coupling (2); the inner side wall of the elastic coupling (2) is attached to the outer side wall of the flat key (3); the outer side wall of the flat key (3) is attached to the output shaft of the speed regulating motor (1), and the outer side wall of the flat key (3) is attached to one end of the transmission shaft (17); one end of the transmission shaft (17) is attached to the inner side wall of the elastic coupling (2);
the loading device comprises a test bearing (10), a loading sleeve (11), a second inner hexagon screw (12), a loading nut (13), a force transmission small shaft (14) and a conducting component; the outer side wall of the test bearing (10) is fixedly connected with the inner side wall of the loading sleeve (11); the top of the loading sleeve (11) is attached to the second inner hexagon screw (12); the outer side wall of the second inner hexagon screw (12) is attached to the inner side wall of the loading nut (13); the inner side wall of the loading nut (13) is movably connected with the outer side wall of the force transmission small shaft (14).
2. A bearing fault diagnosis test bench according to claim 1, characterized in that the conducting assembly comprises a pressure sensor (26), a seventh socket head cap screw (27) and a sliding loading block (28); the pressure sensor (26) is mounted on the sliding loading block (28) by the seventh socket head cap screw (27).
3. The bearing fault diagnosis experiment table according to claim 1, wherein the experiment table comprises a bottom plate (21), a third inner hexagon screw (18) is arranged at the bottom of the bottom plate (21), an adjustable foot cup (19) is attached to the bottom of the bottom plate (21), a fourth inner hexagon screw (20) is arranged at the top of the bottom plate (21), a fifth inner hexagon screw (22) is arranged at the top of the bottom plate (21), a lower half seat (24) is attached to the top of the bottom plate (21), an upper half seat (23) is attached to the top of the lower half seat (24), a sixth inner hexagon screw (25) is arranged at the top of the upper half seat (23), a double-split bearing seat (8) is attached to the top of the bottom plate (21), a first bearing end cover (4) is attached to one end of the double-split bearing seat (8), the utility model discloses a bearing, including two pair subdivision formula bearing frame (8), the lateral wall of first bearing end cover (4) and second bearing end cover (9) is inlayed and is had oil-immersed felt circle (5), the lateral wall of second bearing end cover (9) is provided with first hexagon socket head cap screw (6), the inboard wall of pair subdivision formula bearing frame (8) is laminated mutually and is had support bearing (7).
4. A bearing fault diagnosis test bench according to claim 1, characterized in that a stop washer (15) is attached to the other end of the transmission shaft (17), a round nut (16) is arranged at the other end of the transmission shaft (17), and a cylindrical pin (29) is arranged on the outer side wall of the loading sleeve (11).
5. A bearing fault diagnosis test bench according to claim 3, characterized in that the inner side wall of the oil-impregnated felt ring (5) is attached to the outer side wall of the transmission shaft (17), the inner side wall of the support bearing (7) is attached to the outer side wall of the transmission shaft (17), and the outer side wall of the other end of the transmission shaft (17) is attached to the inner side wall of the test bearing (10).
6. A bearing fault diagnosis test bench according to claim 3, characterized in that the adjustable speed motor (1) and the bottom plate (21) are connected by the fifth socket head cap screw (22), the double split bearing housing (8) and the bottom plate (21) are connected by the fourth socket head cap screw (20), the loading sleeve (11) and the bottom plate (21) are connected by the third socket head cap screw (18), and the first bearing end cap (4), the second bearing end cap (9) and the double split bearing housing (8) are connected by the first socket head cap screw (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120829557.1U CN214584034U (en) | 2021-04-20 | 2021-04-20 | Bearing fault diagnosis experiment table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120829557.1U CN214584034U (en) | 2021-04-20 | 2021-04-20 | Bearing fault diagnosis experiment table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214584034U true CN214584034U (en) | 2021-11-02 |
Family
ID=78327399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120829557.1U Expired - Fee Related CN214584034U (en) | 2021-04-20 | 2021-04-20 | Bearing fault diagnosis experiment table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214584034U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023137600A1 (en) * | 2022-01-18 | 2023-07-27 | 广州工商学院 | Variable-speed fault diagnosis apparatus for rolling bearing of high-speed locomotive |
-
2021
- 2021-04-20 CN CN202120829557.1U patent/CN214584034U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023137600A1 (en) * | 2022-01-18 | 2023-07-27 | 广州工商学院 | Variable-speed fault diagnosis apparatus for rolling bearing of high-speed locomotive |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101135606B (en) | Sealed bearings multifunctional test machine and test methods thereof | |
| CN112161803B (en) | Rolling bearing life-span energy consumption testing machine under combined load | |
| CN101660970A (en) | Large bearing testing machine | |
| CN101699242B (en) | Accelerated rolling bearing fatigue life tester | |
| CN110542550B (en) | Electric spindle reliability loading test bed with load completely decoupled | |
| CN214584034U (en) | Bearing fault diagnosis experiment table | |
| CN214584032U (en) | Bearing state monitoring and fault diagnosis experiment table | |
| CN102798527B (en) | Tester for detecting performance of oil-retaining bearing and radial loading mechanism thereof | |
| CN103604606A (en) | Sliding bearing testing machine | |
| CN212539621U (en) | Bearing experiment table capable of applying complex load | |
| CN105547701A (en) | Dynamic load testing device for thin-wall bearing detecting table | |
| CN111504642A (en) | Bearing experiment table capable of applying complex load | |
| CN105571864A (en) | Static load test device for thin wall bearing detection table | |
| CN110595763B (en) | Vibration test device for single-input double-output transmission main shaft system | |
| CN111551357A (en) | Rotor torsional vibration test device | |
| CN102607750A (en) | Test-bed for friction torque of rolling bearing | |
| CN202735006U (en) | Torque measuring device | |
| CN114001957B (en) | Vertical bearing testing machine | |
| CN113029568B (en) | Bearing life test system and method | |
| CN114910267A (en) | Four-pivot bearing test device under down-hole random impact load | |
| CN104502104A (en) | Motor bearing test bed | |
| CN201555707U (en) | Large-sized bearing tester | |
| CN209992173U (en) | Automobile water pump shaft connection bearing testing machine | |
| CN207650047U (en) | A kind of straight pin fatigue tester | |
| CN107607319B (en) | Gear box testing arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211102 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |