CN115628662A

CN115628662A - Wearing degree check out test set of bearing loss detection usefulness

Info

Publication number: CN115628662A
Application number: CN202211272437.1A
Authority: CN
Inventors: 杨小军
Original assignee: Suzhou Mengjiong Trade Co ltd
Current assignee: Suzhou Mengjiong Trade Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-01-20

Abstract

The invention discloses a wear degree detection device for bearing loss detection, which comprises a workbench and a fixing component arranged above the workbench and used for fixing a bearing inner ring, wherein the fixing component is used for fixing an outer arc surface of the bearing inner ring; the top of the workbench is provided with a rotatable rotating shaft, the rotating shaft is provided with a distance measuring assembly and a measuring assembly, and the top of the workbench is provided with a drawing disc capable of moving up and down; when the rotating shaft rotates, the distance measuring assembly can move along the inner arc surface of the bearing inner ring, and meanwhile, the measuring assembly records the running track of the distance measuring assembly on the drawing disc. According to the invention, through the matching of the structures, the distance measuring assembly moves along the inner arc surface of the bearing inner ring, the motion track of the distance measuring assembly is recorded through the measuring assembly, and then the distance measuring assembly is compared with the motion track of the measuring assembly under the standard bearing, so that the wear degree of the bearing can be measured.

Description

Abrasion degree detection equipment for bearing loss detection

Technical Field

The invention relates to the technical field of bearing detection, in particular to abrasion degree detection equipment for bearing loss detection.

Background

The bearing is an important connecting component in mechanical equipment and is used for supporting the mechanical rotating body, reducing the friction coefficient in the movement process of the mechanical rotating body and ensuring the rotation precision of the mechanical rotating body.

The bearing is in the use, owing to receive influences such as heavy load, external impurity, metal fatigue appears in the bearing position easily to the fitting surface that makes bearing inner race and axle becomes clearance fit by interference fit, no longer is in "hugs closely" state, leads to bearing inner race and axle to appear relative displacement, causes the aggravation of bearing position wearing and tearing, influences mechanical equipment's operation more so.

At present, the inner ring abrasion detection of a bearing is usually carried out by using a caliper, and measurement errors can be reduced as far as possible only by measuring for many times during measurement, so that the measurement precision is low, and the operation is complicated.

Disclosure of Invention

The invention aims to provide a wearing degree detection device for bearing loss detection, which can measure the wearing degree of a bearing by moving a distance measurement assembly along the inner arc surface of a bearing inner ring, recording the motion track of the distance measurement assembly through the measurement assembly and comparing the motion track with the motion track of a measurement assembly under a standard bearing, thereby solving the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the abrasion degree detection equipment for detecting the bearing loss comprises a workbench and a fixing component which is arranged above the workbench and used for fixing a bearing inner ring, wherein the fixing component is used for fixing an outer cambered surface of the bearing inner ring;

the top of the workbench is provided with a rotatable rotating shaft, the rotating shaft is provided with a distance measuring assembly and a measuring assembly, and the top of the workbench is provided with a drawing disc capable of moving up and down;

when the rotating shaft rotates, the distance measuring assembly can move along the inner arc surface of the bearing inner ring, and meanwhile, the measuring assembly records the running track of the distance measuring assembly on the drawing disc.

Preferably, the range finding subassembly is located including last fixed block and the lower fixed block of fixing at the axis of rotation outer wall last fixed block and axis of rotation outer wall slidable mounting between the fixed block down has the slider, the outer wall of going up fixed block and slider all rotates and installs first connecting rod, and two the common rotation of the relative one end of first connecting rod is installed and is measured the piece, install first spring down between fixed block and the slider, the slider all rotates with the outer wall of lower fixed block and installs the second connecting rod, and two the common rotation of the relative one end of second connecting rod is installed the connecting block, measuring unit installs on the connecting block.

Preferably, the measuring unit is including fixing the fixed plate on the fixed block down, the outer wall of fixed plate rotates and installs the circle piece, the straight flute has been seted up to the outer wall of circle piece, the outer wall of connecting block is fixed with the fixed strip, be fixed with the slide bar on the fixed strip, just the slide bar inserts in the straight flute and rather than sliding connection, the outer wall of circle piece is fixed with distance sensor, the outer wall of fixed plate installs the extension spring through between installation piece and the circle piece, just the extension spring makes distance sensor have the trend that keeps vertical state.

Preferably, the measuring component is including fixing the diaphragm at the connecting block outer wall, the through-hole has been seted up to the bottom of diaphragm, and vertical slidable mounting has the montant in the through-hole, the painting brush is installed to the bottom of montant, is located the outer wall of montant of diaphragm below is fixed with keeps off the ring, just keep off and install the second spring between ring and the diaphragm, just the second spring makes the painting brush all the time with the surface contact who draws the dish.

Preferably, the measuring assembly comprises a drawing pen fixed on the outer wall of the connecting block, and the drawing pen is in surface contact with the drawing disk when the bearing inner ring is not worn.

Preferably, the outer walls of the rotating shafts on two sides of the sliding block are provided with limiting blocks in a sliding mode, and the outer walls of the limiting blocks are connected with telescopic rods between the measuring blocks and the connecting blocks respectively.

Preferably, fixed subassembly includes and fixes the top dish at the workstation top through the supporting leg, just the through-hole that can supply the range finding subassembly to pass is seted up at the top of top dish, rotatable swivel becket is installed at the top of top dish, the top of top dish is rotated and is installed a plurality of gears that are the ring-type and distribute, and every all be fixed with the clamping bar on the gear, the inner wall of swivel becket is fixed with the ring gear, just the ring gear all with a plurality of gear engagement.

Preferably, a plurality of cylinders in an annular array are arranged between the drawing disc and the workbench.

Preferably, the outer wall of the measuring block is rotatably provided with a roller, and the roller abuts against the inner annular surface of the bearing inner ring.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, through the matching of the structures, the distance measuring assembly moves along the inner arc surface of the bearing inner ring, the movement track of the distance measuring assembly is recorded through the measuring assembly, and then the movement track is compared with the movement track of the measuring assembly under a standard bearing, so that the wear degree of the bearing can be measured, and whether the wear degree of the bearing inner ring is serious or not can be detected through the difference between the two.

2. The invention detects and expresses the wear degree of the bearing under different conditions in different embodiments through the matching of the structures.

Drawings

FIG. 1 is a front view of a first embodiment of the present invention;

FIG. 2 is a top perspective view of a first embodiment of the present invention;

FIG. 3 is a cross-sectional perspective view of a first embodiment of the present invention;

FIG. 4 is an enlarged view taken at A of FIG. 3 according to the present invention;

FIG. 5 is an enlarged view of the rotating shaft and its upper structure of FIG. 2 according to the present invention;

FIG. 6 is a bottom perspective view of a first embodiment of the present invention;

FIG. 7 is a partially enlarged perspective view of a second embodiment of the present invention;

FIG. 8 is a partially enlarged perspective view of a third embodiment of the present invention;

fig. 9 is a diagram of a range of a movement trace of a brush according to a second embodiment of the present invention.

In the figure: 1. a work table; 2. a rotating shaft; 3. a top tray; 4. a rotating ring; 5. an upper fixing block; 6. a lower fixed block; 7. drawing a disc; 8. a cylinder; 9. a slider; 10. a toothed ring; 11. a gear; 12. a clamping bar; 13. a guide bar; 14. a first link; 15. a measuring block; 16. a second link; 17. connecting blocks; 18. a fixing plate; 19. a round block; 20. a straight groove; 21. a tension spring; 22. a fixing strip; 23. a slide bar; 24. a distance sensor; 25. a limiting block; 26. a telescopic rod; 27. a first spring; 28. drawing a pen; 29. a transverse plate; 30. a vertical rod; 31. painting brushes; 32. a baffle ring; 33. a second spring.

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 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.

The first embodiment is as follows:

referring to fig. 1 to 6, the present invention provides a technical solution: the abrasion degree detection equipment for detecting the bearing loss comprises a workbench 1 and a fixing component which is arranged above the workbench 1 and used for fixing a bearing inner ring, wherein the fixing component is used for fixing an outer arc surface of the bearing inner ring;

the top of the workbench 1 is provided with a rotatable rotating shaft 2, the rotating shaft 2 is provided with a distance measuring assembly and a measuring assembly, and the top of the workbench 1 is provided with a drawing disc 7 capable of moving up and down;

when the rotating shaft 2 rotates, the distance measuring assembly can move along the inner arc surface of the bearing inner ring, and meanwhile, the measuring assembly records the running track of the distance measuring assembly on the drawing disc 7.

When the detection equipment is used, after a bearing is disassembled, the inner ring of the bearing is fixed from the outer arc surface through the fixing component so as to prevent the interference of the distance measurement component, and then the drawing disc 7 is driven to move upwards through the external structure so as to be contacted with the measurement component;

after fixing, drive axis of rotation 2 through the exterior structure and rotate, then the range finding subassembly can remove along the bearing inner race, measure the subassembly simultaneously and carry out the record to the orbit of range finding subassembly on drawing dish 7, this orbit is exactly the bearing inner race after wearing and tearing, then will find the range finding subassembly and take notes the bearing inner race that does not have wearing and tearing, compare the two, can measure the degree of wear of bearing, and can also be through setting up the scope that certain scope is normal wearing and tearing, can distinguish the bearing of normal wearing and tearing and excessive wearing and tearing like this, so that classification after the detection.

In the above embodiments, a preferred implementation of the distance measuring assembly is provided;

the range finding subassembly is including fixing last fixed block 5 and lower fixed block 6 at 2 outer walls of axis of rotation, it has slider 9 to be located 2 outer walls of axis of rotation slidable mounting between last fixed block 5 and the lower fixed block 6, the outer wall of going up fixed block 5 and slider 9 is all rotated and is installed first connecting rod 14, and the common rotation of two relative one ends of first connecting rod 14 installs measuring block 15, install first spring 27 down between fixed block 6 and the slider 9, slider 9 all rotates with the outer wall of lower fixed block 6 and installs second connecting rod 16, and the common rotation of two relative one ends of second connecting rod 16 installs connecting block 17, measuring component installs on connecting block 17.

Specifically, referring to fig. 3 and 5, after the bearing inner race is fixed by the fixing component, the bearing inner race and the rotating shaft 2 are concentrically arranged, and under the action of the elastic force of the first spring 27, the measuring block 15 abuts against the inner arc surface of the bearing inner race, and at this time, the sliding block 9 is located in the middle of the upper fixing block 5 and the lower fixing block 6;

when the rotating shaft 2 rotates, the measuring block 15 slides along the bearing inner ring, when the bearing inner ring is worn, under the elastic force action of the first spring 27, the sliding block 9 moves upwards to enable the measuring block 15 to be always abutted against the bearing inner ring, meanwhile, the sliding block 9 moves upwards to drive the connecting block 17 to move upwards in an inclined mode towards the direction close to the rotating shaft 2 through the two second connecting rods 16, then the diameter of the circular track of the measuring component on the connecting block 17 is reduced, therefore, the track record on the drawing disc 7 is changed, the position of bearing wear is recorded, and the degree of wear can be visually observed through comparison of the change degree of the track and the normal track.

In the above further implementation, a preferred embodiment of the measuring assembly is proposed;

the measuring assembly comprises a fixing plate 18 fixed on a lower fixing block 6, a round block 19 is installed on the outer wall of the fixing plate 18 in a rotating mode, a straight groove 20 is formed in the outer wall of the round block 19, a fixing strip 22 is fixed on the outer wall of a connecting block 17, a sliding rod 23 is fixed on the fixing strip 22, the sliding rod 23 is inserted into the straight groove 20 and is connected with the straight groove in a sliding mode, a distance sensor 24 is fixed on the outer wall of the round block 19, an extension spring 21 is installed between the outer wall of the fixing plate 18 and the round block 19 through an installation block, and the extension spring 21 enables the distance sensor 24 to have the tendency of keeping the vertical state.

With specific reference to fig. 3 and 4, when the inner ring of the bearing is not worn, under the action of the tension spring 21, the straight groove 20 on the round block 19 is in a vertical state, and the distance sensor 24 is also in a vertical state, and when the rotating shaft 2 rotates, the distance sensor 24 rotates along with the circumference, and is always in a vertical state with the drawing disk 7, and the sensed distance is the shortest distance;

when the bearing inner ring is worn, as can be known from the foregoing, the connecting block 17 moves obliquely upward toward the direction close to the rotating shaft 2, and at the same time, the sliding rod 23 on the fixing strip 22 moves along the inner wall of the straight groove 20 and also drives the round block 19 to rotate by a certain angle, so that the distance sensor 24 becomes oblique, and further the sensed distance becomes longer, so that the wear of the bearing inner ring can be detected through the distance changes sensed by the distance sensor 24 at different places, and the larger the distance change is, the more serious the wear of the bearing inner ring is, and due to the rotation of the round block 19, although the wear degree of the bearing inner ring cannot be accurately obtained, the change in the distance detected by the distance sensor 24 can be used for amplifying and representing the wear degree, especially under relatively slight wear, the change in the distance can be amplified, so as to facilitate the observation of the wear degree;

in this embodiment, the length detected by the distance sensor 24 can be further enlarged by adjusting the position of the drawing tray 7, i.e., the distance from the distance sensor 24 varies more as the drawing tray 7 is closer to below.

In a second embodiment, a second, more preferred implementation of the measurement assembly is provided, which is different from the first embodiment;

the measuring assembly comprises a transverse plate 29 fixed on the outer wall of the connecting block 17, a through hole is formed in the bottom of the transverse plate 29, a vertical rod 30 is arranged in the through hole in a sliding mode, a painting brush 31 is installed at the bottom end of the vertical rod 30, a blocking ring 32 is fixed on the outer wall of the vertical rod 30 located below the transverse plate 29, a second spring 33 is installed between the blocking ring 32 and the transverse plate 29, and the second spring 33 enables the painting brush 31 to be always in surface contact with the drawing disc 7.

Specifically, referring to fig. 7, as can be seen from the foregoing, when the rotating shaft 2 rotates, the connecting block 17 also rotates together, so that the paintbrush 31 draws a motion track on the surface of the drawing tray 7;

referring to fig. 9, a trace shown in fig. 9 a is a drawing trace of the brush 31 when the inner race of the bearing is not worn, and when the inner race of the bearing is worn, the diameter of the drawing trace of the brush 31 is reduced, and by setting a trace b, when the actual running trace of the brush 31 is between the trace a and the trace b, the wear of the inner race of the bearing is a normal wear degree;

when the actual running track diameter of the painting brush 31 is smaller than the track a, the abrasion of the bearing inner ring can be proved to be serious, so that different abrasion degrees of the bearing inner ring can be judged;

the embodiment is more suitable for detecting the abrasion degree of the bearing after the bearing is used for a period of time, so as to judge whether the working state of the bearing is normal or whether the bearing is overloaded, and further obtain the running condition of the whole equipment;

in this embodiment, drawing tray 7 is moved upward by an external structure until it comes into contact with brush 31 and second spring 33 is compressed to some extent.

In a third embodiment, different from the first embodiment, a third preferred implementation of the measuring assembly is provided;

the measuring assembly comprises a drawing pen 28 fixed on the outer wall of the connecting block 17, and when the bearing inner ring is not worn, the drawing pen 28 is in surface contact with the drawing disk 7.

With particular reference to fig. 8, when the bearing inner ring is not worn, the drawing pen 28 is in contact with the surface of the drawing board 7, i.e. the rotation shaft 2 rotates, and the drawing pen 28 can draw a track on the drawing board 7;

when the bearing inner ring is worn or defective, the drawing pen 28 can be separated from the drawing disc 7 by the upward inclined movement of the connecting block 17, so that drawing is not performed, and the worn position of the bearing inner ring can be judged by the fracture part of the drawing track and the part with the drawing track being extinguished;

compared with the embodiment, the embodiment is more suitable for detection before the bearing inner ring is used or detection during production, so that whether the bearing inner ring is used or not can be detected, and the position of a defect can also be detected.

In this embodiment, the drawing disk 7 is driven by an external structure so as to be in contact with the drawing pen 28 in a state indicating that the bearing inner race is not worn.

In the above-mentioned further implementation, the outer walls of the rotating shafts 2 located on both sides of the sliding block 9 are all slidably provided with limiting blocks 25, and the outer walls of the two limiting blocks 25 are respectively connected with the telescopic rods 26 between the measuring blocks 15 and the connecting block 17.

Specifically, as can be seen from fig. 5, when the slider 9 moves up and down, the first connecting rod 14 and the second connecting rod 16 drive the measuring block 15 and the connecting block 17 to move, and under the limiting action of the telescopic rod 26 and the limiting block 25, the measuring block 15 and the connecting block 17 can be ensured to be always kept in a vertical state in the moving process, so as to ensure the detection accuracy.

In the above further embodiment, a preferred embodiment of the fixing assembly is proposed;

the fixed subassembly includes that the supporting leg is fixed at the top of workstation 1 and coils 3, and the through-hole that can supply the range finding subassembly to pass is seted up at the top of top dish 3, and rotatable swivel becket 4 is installed at the top of top dish 3, and the top of top dish 3 is rotated and is installed a plurality of gears 11 that are the ring-shaped distribution, and all is fixed with clamping bar 12 on every gear 11, and the inner wall of swivel becket 4 is fixed with ring gear 10, and ring gear 10 all meshes with a plurality of gears 11.

Specifically, referring to fig. 2 and 3, when the bearing inner ring is placed on the top plate 3, the rotating ring 4 is driven to rotate through an external structure, so that the gear ring 10 drives the plurality of gears 11 to rotate together, the clamping rods 12 clamp and fix the outer arc surface of the bearing inner ring, and the bearing inner ring can be centered through clamping of the plurality of clamping rods 12, so that the bearing inner ring and the rotating shaft 2 are coaxial.

In the preferred embodiment described above, a plurality of cylinders 8 are mounted in an annular array between the drawing disk 7 and the table 1.

The drawing disc 7 is driven by the air cylinder 8 to move up and down, so that the movement is stable, and the corresponding adjustment in different embodiments can be facilitated.

In a preferred embodiment, a roller is rotatably mounted on the outer wall of the measuring block 15, and the roller abuts against the inner annular surface of the bearing inner ring.

Through setting up the cylinder, can reduce the area of contact of measuring block 15 and bearing inner race intrados, and then reduce the error when measuring, make and detect more accurately.

The standard parts used in the present embodiment may be purchased directly from the market, and the non-standard structural components described in the specification and drawings may be processed directly according to the conventional technical knowledge without any doubt, and the connection manner of the respective parts adopts the conventional means mature in the prior art, and the machines, parts and equipment adopt the conventional types in the prior art, so that detailed description thereof is omitted.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a wearing and tearing check out test set of bearing loss detection usefulness, includes workstation (1), its characterized in that: the fixing component is arranged above the workbench (1) and used for fixing the bearing inner ring, and the fixing component is used for fixing the outer arc surface of the bearing inner ring;

a rotatable rotating shaft (2) is mounted at the top of the workbench (1), a distance measuring assembly and a measuring assembly are mounted on the rotating shaft (2), and a drawing disc (7) capable of moving up and down is mounted at the top of the workbench (1);

when the rotating shaft (2) rotates, the distance measuring assembly can move along the inner arc surface of the bearing inner ring, and meanwhile, the measuring assembly records the running track of the distance measuring assembly on the drawing disc (7).

2. The wear degree detecting apparatus for bearing wear detection according to claim 1, characterized in that: range finding subassembly is including fixing last fixed block (5) and lower fixed block (6) at axis of rotation (2) outer wall, is located go up fixed block (5) and axis of rotation (2) outer wall slidable mounting between lower fixed block (6) has slider (9), the outer wall of going up fixed block (5) and slider (9) all rotates and installs first connecting rod (14), and two first connecting rod (14) relative one end rotates jointly and installs measuring block (15), install first spring (27) down between fixed block (6) and slider (9), slider (9) and the outer wall of lower fixed block (6) all rotate and install second connecting rod (16), and two the common rotation of the relative one end of second connecting rod (16) installs connecting block (17), measuring unit installs on connecting block (17).

3. The wear degree detecting apparatus for bearing wear detection according to claim 2, characterized in that: the utility model discloses a measuring assembly, including fixed plate (18) of fixed block (6) under, the outer wall of fixed plate (18) rotates installs pole (19), straight flute (20) have been seted up to the outer wall of pole (19), the outer wall of connecting block (17) is fixed with fixed strip (22), be fixed with slide bar (23) on fixed strip (22), just slide bar (23) insert in straight flute (20) and rather than sliding connection, the outer wall of pole (19) is fixed with distance sensor (24), install extension spring (21) between the outer wall of fixed plate (18) through installation piece and pole (19), just extension spring (21) make distance sensor (24) have the trend that keeps vertical state.

4. The wear degree detecting apparatus for bearing wear detection according to claim 2, characterized in that: the measuring part is including fixing diaphragm (29) at connecting block (17) outer wall, the through-hole has been seted up to the bottom of diaphragm (29), and vertical slidable mounting has montant (30) in the through-hole, painting brush (31) are installed to the bottom of montant (30), are located the outer wall of montant (30) of diaphragm (29) below is fixed with keeps off ring (32), just keep off and install second spring (33) between ring (32) and diaphragm (29), just second spring (33) make painting brush (31) all the time with the surface contact who draws dish (7).

5. The wear degree detecting apparatus for bearing wear detection according to claim 2, characterized in that: the measuring assembly comprises a drawing pen (28) fixed on the outer wall of the connecting block (17), and when the bearing inner ring is not worn, the drawing pen (28) is in surface contact with the drawing disc (7).

6. The wear degree detecting apparatus for bearing loss detection according to any one of claims 2 to 5, characterized in that: be located equal slidable mounting of axis of rotation (2) outer wall of slider (9) both sides has stopper (25), and two the outer wall of stopper (25) respectively with measure between piece (15) and connecting block (17) and be connected with telescopic link (26).

7. The wear degree detecting apparatus for bearing loss detection according to any one of claims 1 to 5, characterized in that: fixed subassembly includes top dish (3) of fixing at workstation (1) top through the supporting leg, just the through-hole that can supply the range finding subassembly to pass is seted up at the top of top dish (3), rotatable swivel becket (4) is installed at the top of top dish (3), the top of top dish (3) is rotated and is installed a plurality of gears (11) that are the annular distribution, and every all be fixed with clamping bar (12) on gear (11), the inner wall of swivel becket (4) is fixed with ring gear (10), just ring gear (10) all meshes with a plurality of gear (11).

8. The wear degree detecting apparatus for bearing wear detection according to claim 6, characterized in that: a plurality of cylinders (8) in an annular array are arranged between the drawing disc (7) and the workbench (1).

9. The wear degree detecting apparatus for bearing wear detection according to claim 6, characterized in that: and the outer wall of the measuring block (15) is rotatably provided with a roller, and the roller is abutted against the inner annular surface of the bearing inner ring.