CN113533365A - Bearing manufacturing defect flaw detection device capable of synchronously detecting inner ring and outer ring - Google Patents
Bearing manufacturing defect flaw detection device capable of synchronously detecting inner ring and outer ring Download PDFInfo
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- CN113533365A CN113533365A CN202110718713.1A CN202110718713A CN113533365A CN 113533365 A CN113533365 A CN 113533365A CN 202110718713 A CN202110718713 A CN 202110718713A CN 113533365 A CN113533365 A CN 113533365A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/9515—Objects of complex shape, e.g. examined with use of a surface follower device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses a defect flaw detection device capable of synchronously detecting an inner ring and an outer ring for manufacturing a bearing, which comprises a base, wherein the base is placed on the ground, a fixed plate is fixed on the base, and a first top plate is arranged on the front side surface of the fixed plate; the lead screw, its bearing is connected on the fixed plate, the outer wall and the connecting plate of lead screw are connected, and the lead screw is connected through a driving belt and first rotary rod, the one end and the second riser that the first riser was kept away from to the second connecting block are connected, and the second riser is installed on the fixed plate. This but defect inspection device is used in bearing manufacturing of outer lane synchronous detection is provided with first reflector and second reflector, and first reflector sets up in the inboard of bearing body, and the second reflector sets up in the outside of bearing body to the length of first reflector is less than the length of second reflector, is convenient for like this carry out the purpose of synchronous observation detection to the outer lane of bearing body and inner circle, makes things convenient for staff's observation.
Description
Technical Field
The invention relates to the technical field of bearing manufacturing, in particular to a defect flaw detection device for bearing manufacturing, which can synchronously detect an inner ring and an outer ring.
Background
The bearing is an important part in mechanical equipment, mainly plays the effect of reducing mechanical body friction, can let the mechanical body better rotate, and the bearing need carry out surface detection to inner circle and outer lane in manufacturing process, and the use that only the interior outer lane surface of bearing is smooth can not influence the later stage, so defect inspection device's use plays important role in bearing manufacturing.
Like publication No. CN107703145B, a bearing defect detection device, fix the bearing and carry out the detection of outer lane dent, the convex mark to the bearing through detecting a section of thick bamboo, the inner circle of rethread detection plate to the bearing detects, it is more troublesome like this, can not carry out synchronous detection to the outer lane and the inner circle of bearing, staff's work load has been increased, and be not convenient for fix the bearing of different diameters size, thereby lead to the device to have certain limitation when using, the availability factor to the device has been reduced, so we have proposed a bearing that can inner and outer lane synchronous detection and have made defect detection device, so that solve the problem that proposes in the aforesaid.
Disclosure of Invention
The invention aims to provide a defect detection device for manufacturing a bearing, which can synchronously detect an inner ring and an outer ring, and solves the problems that the bearing defect detection device in the prior market, which is provided by the background technology, can not synchronously detect the outer ring and the inner ring of the bearing, the workload of workers is increased, and the bearings with different diameters are inconvenient to fix, so that the device has certain limitation in use, and the use efficiency of the device is reduced.
In order to achieve the purpose, the invention provides the following technical scheme: a bearing manufacturing defect detection device capable of synchronously detecting an inner ring and an outer ring comprises:
the base is placed on the ground, a fixed plate is fixed on the base, and a first top plate is installed on the front side surface of the fixed plate;
the bearing of the screw rod is connected to the fixing plate, the outer wall of the screw rod is connected with the connecting plate, the screw rod is connected with the first rotating rod through the first transmission belt, the rear end of the first rotating rod is connected with the second top plate, and the second top plate is fixed on the fixing plate;
the clamping plate is arranged at the bottom of the connecting plate, a first reflecting mirror is arranged below the clamping plate, and a second reflecting mirror is arranged on the right side of the first reflecting mirror;
the first vertical plate is arranged below the first reflecting mirror, a second rotating rod is arranged on the front side surface of the first vertical plate, the second rotating rod is connected with the roller shaft through a second transmission belt, and the second rotating rod is arranged at the top of the first vertical plate;
the gear block is fixed on the outer wall of the left side of the first vertical plate, the gear block is meshed with the connecting gear, the connecting gear is welded on the outer wall of the rotating shaft, a worm wheel is arranged on the rear side of the connecting gear, the worm wheel is meshed with the worm, the right end of the worm is connected with the limiting piece bearing, and meanwhile the limiting piece is fixed on the fixing plate;
the second connecting block, it set up in on the right side outer wall of first riser, the one end that first riser was kept away from to the second connecting block is connected with the second riser, and the second riser is installed on the fixed plate.
Preferably, the connecting plate is provided with 2, and is threaded connection between 2 connecting plates and the lead screw to the screw thread at both ends revolves to opposite around the lead screw, like this when the lead screw is rotatory, can drive 2 connecting plates and carry out the phase displacement, is convenient for carry out spacing fixed to the bearing body of different thickness, guarantees the fastness of later stage bearing this inspection time measuring.
Preferably, the top of connecting plate is provided with first connecting block, and first connecting block is connected through recess and first roof to the inner wall of first roof is seted up to the recess, is convenient for carry on spacingly to the connecting plate, appears rocking when preventing that the connecting plate from removing the phenomenon.
Preferably, the knob is installed to the front end of first rotary rod, and has all seted up the spacing groove on knob and the second roof to the inside block of spacing groove is connected with the inserted bar, and the spacing groove is equiangular distribution on the knob simultaneously, can carry out spacing fixed to the knob, thereby realizes fixing the lead screw through the knob, effectively prevents that self-rotation pivoted phenomenon from appearing in the lead screw.
Preferably, be welded connection between splint and the connecting plate, and be provided with the gyro wheel on the bottom inner wall of splint to be provided with the bearing body between the splint, can make between splint and the connecting plate be connected more firm, effectively prevent the phenomenon that drops from appearing in the use, thereby drive splint and remove together through the removal of connecting plate.
Preferably, be the hub connection between gyro wheel and the splint, and splint are "L" font to splint are provided with 2, are convenient for carry out better spacing to the bearing body, ensure the normal clear of bearing body detection achievement.
Preferably, the first reflector and the second reflector are respectively bonded with the fixing plate, the length of the first reflector is smaller than that of the second reflector, the mirror surface of the first reflector and the mirror surface of the second reflector are oppositely arranged, synchronous operation of detection work of the outer ring and the inner ring of the bearing body can be achieved, convenience is brought to workers, and detection efficiency is improved.
Preferably, second rotary rod and roller are connected for the bearing with the first riser respectively, and the surface of roller is provided with the rubber circle of multiplicable frictional force to laminate each other between roller and the bearing body, can make the inseparabler of being connected between roller and the bearing body like this, and then when the roller is rotatory, can drive the bearing body and rotate together, realize the regulation to the bearing body angle, can detect the bearing body of different positions.
Preferably, formula structure as an organic whole between first connecting block and the connecting plate, and be sliding connection between first connecting block and the recess to the connection end structure of first connecting block and recess is the same with the connection end structure of second connecting block and second riser, can make more steady that first riser removed through the second connecting block like this, further guarantees going on of the stability of whole operation.
Compared with the prior art, the invention has the beneficial effects that: the defect detection device for manufacturing the bearing capable of synchronously detecting the inner ring and the outer ring,
(1) the bearing comprises a bearing body, a first reflector and a second reflector, wherein the first reflector is arranged on the inner side of the bearing body, the second reflector is arranged on the outer side of the bearing body, and the length of the first reflector is smaller than that of the second reflector, so that the defect degree of an inner ring of the bearing body is projected on the second reflector conveniently, and the defect of an outer ring of the bearing body is irradiated by the second reflector, so that the aim of synchronously observing and detecting the outer ring and the inner ring of the bearing body is fulfilled, and the observation of workers is facilitated;
(2) the bearing body is fixed through the 2 clamping plates, the clamping plates are connected with the connecting plates, the connecting plates are in threaded connection with the screw rod, and meanwhile, the thread turning directions of the front end and the rear end of the screw rod are opposite, so that the connecting plates at the front end and the rear end can be driven to move simultaneously when the screw rod rotates, the bearing bodies with different diameters can be clamped and fixed, and the clamping plates are provided with the rollers, so that the bearing bodies can rotate, the detection of different angles is realized, and the flexibility of the device in use is improved;
(3) the bottom and the roller of bearing body laminate mutually, and the roller is connected through second driving belt and second rotary rod, and the second rotary rod is installed at the front side surface of riser, the left tooth piece of second riser is connected with connecting gear engagement simultaneously, can drive tooth piece and second riser through connecting gear's rotation and reciprocate like this, and then drive second rotary rod and roller through the second riser and move together, the realization is to the regulation of distance between roller and the bearing body, further ensured the rotation operation to not unidimensional bearing body, the device's availability factor has been improved.
Drawings
FIG. 1 is a schematic overall front view of the present invention;
FIG. 2 is a schematic overall side view of the present invention;
FIG. 3 is an enlarged view of a portion a of FIG. 1 according to the present invention;
FIG. 4 is a schematic top view of the lead screw of the present invention;
FIG. 5 is a side view of the first reflector of the present invention;
FIG. 6 is a schematic view of a top-down structure of the connection of the first vertical plate and the second connecting block of the present invention;
FIG. 7 is an enlarged view of the structure at b in FIG. 4 according to the present invention;
FIG. 8 is a schematic top view of the roller of the present invention.
In the figure: 1. a base; 2. a fixing plate; 3. a first top plate; 4. a screw rod; 5. a connecting plate; 6. a first drive belt; 7. a first rotating rod; 8. a second top plate; 9. a knob; 10. a limiting groove; 11. inserting a rod; 12. a splint; 1201. a roller; 1202. a bearing body; 13. a first reflective mirror; 14. a second reflective mirror; 15. a first vertical plate; 16. a second rotating rod; 17. a second drive belt; 18. a roll shaft; 19. a tooth block; 20. a connecting gear; 21. a rotating shaft; 22. a worm gear; 23. a worm; 24. a limiting member; 25. a first connection block; 26. a groove; 27. a second connecting block; 28. a second riser.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, the present invention provides a technical solution: a bearing manufacturing defect detection device capable of synchronously detecting an inner ring and an outer ring comprises:
the base 1 is placed on the ground, a fixing plate 2 is fixed on the base 1, and a first top plate 3 is installed on the front side surface of the fixing plate 2;
the bearing of the screw rod 4 is connected to the fixing plate 2, the outer wall of the screw rod 4 is connected with the connecting plate 5, the screw rod 4 is connected with the first rotating rod 7 through the first transmission belt 6, the rear end of the first rotating rod 7 is connected with the second top plate 8, and the second top plate 8 is fixed on the fixing plate 2;
a clamping plate 12 which is arranged at the bottom of the connecting plate 5, wherein a first reflecting mirror 13 is arranged below the clamping plate 12, and a second reflecting mirror 14 is arranged at the right side of the first reflecting mirror 13;
a first vertical plate 15 arranged below the first reflective mirror 13, wherein a second rotating rod 16 is arranged on the front side surface of the first vertical plate 15, the second rotating rod 16 is connected with a roller shaft 18 through a second transmission belt 17, and the second rotating rod 16 is arranged at the top of the first vertical plate 15;
the tooth block 19 is fixed on the outer wall of the left side of the first vertical plate 15, the tooth block 19 is meshed with the connecting gear 20, the connecting gear 20 is welded on the outer wall of the rotating shaft 21, the rear side of the connecting gear 20 is provided with a worm wheel 22, the worm wheel 22 is meshed with the worm 23, the right end of the worm 23 is in bearing connection with the limiting piece 24, and the limiting piece 24 is fixed on the fixing plate 2;
and the second connecting block 27 is arranged on the outer wall of the right side of the first vertical plate 15, one end, away from the first vertical plate 15, of the second connecting block 27 is connected with the second vertical plate 28, and the second vertical plate 28 is installed on the fixing plate 2.
Connecting plate 5 is provided with 2, and be threaded connection between 2 connecting plate 5 and the lead screw 4, and the screw thread of lead screw 4 back and forth both ends is to opposite soon, the top of connecting plate 5 is provided with first connecting block 25, and first connecting block 25 is connected through recess 26 and first roof 3, and the inner wall of first roof 3 is seted up to recess 26, formula structure as an organic whole between first connecting block 25 and the connecting plate 5, and be sliding connection between first connecting block 25 and the recess 26, and the connecting end structure of first connecting block 25 and recess 26 is the same with the connecting end structure of second connecting block 27 and second riser 28.
When the lead screw 4 is rotatory, can drive 2 connecting plates 5 and be close to each other, drive splint 12 through connecting plate 5 and remove together, alright press from both sides tightly fixedly like this with bearing body 1202, make bearing body 1202 guarantee stability when later stage is detected, when connecting plate 5 removed, first connecting block 25 at connecting plate 5 top can slide along recess 26, make connecting plate 5 remove more steady.
The clamping plates 12 are connected with the connecting plate 5 in a welding mode, the rollers 1201 are arranged on the inner wall of the bottom of each clamping plate 12, the bearing bodies 1202 are arranged between the clamping plates 12, the rollers 1201 and the clamping plates 12 are connected through shafts, the clamping plates 12 are L-shaped, and 2 clamping plates 12 are arranged.
Therefore, when the roller shaft 18 rotates, the outer ring of the bearing body 1202 can be driven to rotate, and the roller 1201 is arranged on the inner wall of the clamping plate 12, so that the inner ring of the bearing body 1202 can rotate, and the placing stability of the bearing body 1202 is not affected.
The first reflective mirror 13 and the second reflective mirror 14 are respectively connected with the fixed plate 2 in a bonding mode, the length of the first reflective mirror 13 is smaller than that of the second reflective mirror 14, the mirror surface of the first reflective mirror 13 and the mirror surface of the second reflective mirror 14 are oppositely arranged, the second rotating rod 16 and the roller shaft 18 are respectively connected with the first vertical plate 15 through bearings, the outer surface of the roller shaft 18 is provided with a rubber ring capable of increasing friction force, and the roller shaft 18 and the bearing body 1202 are mutually attached.
Therefore, the condition of the inner ring of the bearing body 1202 can be projected on the second reflective mirror 14 by the first reflective mirror 13, and the bearing body 1202 is normally irradiated by the second reflective mirror 14, so that the outer ring and the inner ring of the bearing body 1202 can be synchronously detected and viewed, convenience is brought to the operation of workers, and the detection efficiency of the bearing body 1202 is also improved.
The working principle of the embodiment is as follows: when the defect inspection device capable of synchronously detecting the inner ring and the outer ring for manufacturing the bearing is used, as shown in fig. 1-8, firstly, a worker puts the device at a corresponding position, then takes the inserted rod 11 out of the limiting groove 10, then puts the bearing body 1202 to be detected between 2 clamping plates 12, and rotates the knob 9, so that the knob 9 drives the first rotating rod 7 to rotate, the first rotating rod 7 drives the screw rod 4 to rotate through the first transmission belt 6, because the screw thread rotating directions of the front end and the rear end of the screw rod 4 are opposite, and the screw rod 4 and the connecting plates 5 are in threaded connection, when the screw rod 4 rotates, the 2 connecting plates 5 can be driven to mutually approach each other, the clamping plates 12 are driven to move together through the connecting plates 5, so that the bearing body 1202 can be clamped and fixed, then the worker twists the worm 23 clockwise, so that the worm 23 drives the worm wheel 22 and the rotating shaft 21 to rotate together, because the connecting gear 20 is installed on the rotating shaft 21, and the connecting gear 20 is meshed with the tooth block 19 on the left side of the first vertical plate 15, the connecting gear 20 can rotate along with the rotating shaft 21, so that the tooth block 19 and the first vertical plate 15 are driven to rise, the roller shaft 18 on the top of the first vertical plate 15 is tightly attached to the bearing body 1202, so that the bearing bodies 1202 with different sizes can be fixed, the flexibility of the device is improved, when the first vertical plate 15 moves, the second connecting block 27 on the right side of the first vertical plate 15 can slide along the second vertical plate 28, the stability when the first vertical plate 15 moves is ensured, then a worker rotates the second rotating rod 16, so that the second rotating rod 16 drives the roller shaft 18 to rotate together through the second transmission belt 17, because the rubber ring for increasing friction force is arranged on the outer wall of the roller shaft 18, when the roller shaft 18 rotates, the outer ring of the bearing body 1202 can be driven to rotate, the roller 1201 is disposed on the inner wall of the clamp plate 12, so that the inner ring of the bearing body 1202 can be rotated, wherein the first reflective mirror 13 is disposed on the inner side of the bearing body 1202, and the second reflective mirror 14 is disposed on the outer side of the bearing body 1202, so that the outer ring and the inner ring of the bearing body 1202 can be synchronously detected and viewed, which brings convenience to the operation of a worker.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (9)
1. A bearing manufacturing defect inspection device capable of synchronously detecting an inner ring and an outer ring is characterized by comprising:
the base is placed on the ground, a fixed plate is fixed on the base, and a first top plate is installed on the front side surface of the fixed plate;
the bearing of the screw rod is connected to the fixing plate, the outer wall of the screw rod is connected with the connecting plate, the screw rod is connected with the first rotating rod through the first transmission belt, the rear end of the first rotating rod is connected with the second top plate, and the second top plate is fixed on the fixing plate;
the clamping plate is arranged at the bottom of the connecting plate, a first reflecting mirror is arranged below the clamping plate, and a second reflecting mirror is arranged on the right side of the first reflecting mirror;
the first vertical plate is arranged below the first reflecting mirror, a second rotating rod is arranged on the front side surface of the first vertical plate, the second rotating rod is connected with the roller shaft through a second transmission belt, and the second rotating rod is arranged at the top of the first vertical plate;
the gear block is fixed on the outer wall of the left side of the first vertical plate, the gear block is meshed with the connecting gear, the connecting gear is welded on the outer wall of the rotating shaft, a worm wheel is arranged on the rear side of the connecting gear, the worm wheel is meshed with the worm, the right end of the worm is connected with the limiting piece bearing, and meanwhile the limiting piece is fixed on the fixing plate;
the second connecting block, it set up in on the right side outer wall of first riser, the one end that first riser was kept away from to the second connecting block is connected with the second riser, and the second riser is installed on the fixed plate.
2. The defect inspection apparatus for manufacturing a bearing according to claim 1, wherein the defect inspection apparatus comprises: the connecting plate is provided with 2, and be threaded connection between 2 connecting plates and the lead screw to the screw thread turning at both ends is opposite around the lead screw.
3. The defect inspection apparatus for manufacturing a bearing according to claim 1, wherein the defect inspection apparatus comprises: the top of connecting plate is provided with first connecting block, and first connecting block is connected through recess and first roof to the inner wall of first roof is seted up to the recess.
4. The defect inspection apparatus for manufacturing a bearing according to claim 1, wherein the defect inspection apparatus comprises: the knob is installed to the front end of first rotary rod, and has all seted up the spacing groove on knob and the second roof to the inside block of spacing groove is connected with the inserted bar, and the spacing groove is equiangular distribution on the knob simultaneously.
5. The defect inspection apparatus for manufacturing a bearing according to claim 1, wherein the defect inspection apparatus comprises: the clamping plates are connected with the connecting plate in a welding mode, the inner wall of the bottom of each clamping plate is provided with a roller, and a bearing body is arranged between the clamping plates.
6. The defect inspection apparatus for manufacturing a bearing according to claim 5, wherein the defect inspection apparatus comprises: the gyro wheel is connected for the hub connection between the splint, and splint are "L" font to splint are provided with 2.
7. The defect inspection apparatus for manufacturing a bearing according to claim 1, wherein the defect inspection apparatus comprises: the first reflective mirror and the second reflective mirror are respectively connected with the fixing plate in an adhesion mode, the length of the first reflective mirror is smaller than that of the second reflective mirror, and the mirror surface of the first reflective mirror and the mirror surface of the second reflective mirror are oppositely arranged.
8. The defect inspection apparatus for manufacturing a bearing according to claim 1, wherein the defect inspection apparatus comprises: second rotary rod and roller are connected for the bearing with first riser respectively, and the surface of roller is provided with the rubber circle of multiplicable frictional force to laminate each other between roller and the bearing body.
9. The defect inspection apparatus for manufacturing a bearing according to claim 3, wherein the defect inspection apparatus comprises: the first connecting block and the connecting plate are of an integrated structure, the first connecting block and the groove are in sliding connection, and the connecting end structure of the first connecting block and the groove is the same as that of the second connecting block and the second vertical plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110718713.1A CN113533365A (en) | 2021-06-28 | 2021-06-28 | Bearing manufacturing defect flaw detection device capable of synchronously detecting inner ring and outer ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110718713.1A CN113533365A (en) | 2021-06-28 | 2021-06-28 | Bearing manufacturing defect flaw detection device capable of synchronously detecting inner ring and outer ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113533365A true CN113533365A (en) | 2021-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110718713.1A Withdrawn CN113533365A (en) | 2021-06-28 | 2021-06-28 | Bearing manufacturing defect flaw detection device capable of synchronously detecting inner ring and outer ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113533365A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977619A (en) * | 2021-11-17 | 2022-01-28 | 济南大学 | Bearing clamping jaw with clamping and detecting functions and detecting method |
| CN117309400A (en) * | 2023-11-28 | 2023-12-29 | 大连瑞丰中轴科技发展有限公司 | Bearing vibration detection equipment |
-
2021
- 2021-06-28 CN CN202110718713.1A patent/CN113533365A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977619A (en) * | 2021-11-17 | 2022-01-28 | 济南大学 | Bearing clamping jaw with clamping and detecting functions and detecting method |
| CN113977619B (en) * | 2021-11-17 | 2023-05-02 | 济南大学 | Bearing clamping jaw with clamping and detecting functions and detecting method |
| CN117309400A (en) * | 2023-11-28 | 2023-12-29 | 大连瑞丰中轴科技发展有限公司 | Bearing vibration detection equipment |
| CN117309400B (en) * | 2023-11-28 | 2024-03-15 | 大连瑞丰中轴科技发展有限公司 | Bearing vibration detection equipment |
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Application publication date: 20211022 |