CN111157243A - Bearing rotation flexibility ratio test equipment - Google Patents
Bearing rotation flexibility ratio test equipment Download PDFInfo
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- CN111157243A CN111157243A CN202010100470.0A CN202010100470A CN111157243A CN 111157243 A CN111157243 A CN 111157243A CN 202010100470 A CN202010100470 A CN 202010100470A CN 111157243 A CN111157243 A CN 111157243A
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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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Abstract
The invention discloses a bearing rotation flexibility testing device, which comprises a machine body, wherein a testing cavity is arranged at the left end in the machine body, a transmission cavity is arranged at the right upper end in the machine body, a clamping mechanism for clamping a bearing is arranged in the transmission cavity, a testing mechanism for testing the bearing is arranged in the testing cavity, a resetting mechanism for resetting a tested device is also arranged in the transmission cavity, the bearing to be tested can be automatically clamped during working, the rotation flexibility of the bearing can be tested according to the characteristics of the bearing after clamping is finished, the resistance during rotation of the bearing is tested by using rotation inertia in the testing process, and a testing conclusion is obtained by comparing the testing result with that of a standard bearing.
Description
Technical Field
The invention relates to the field of bearings, in particular to a bearing rotation flexibility testing device.
Background
The bearing is a term of art frequently appearing in the mechanical industry, and the bearing has good rotating performance, so that the bearing has wide application in the mechanical field.
At present, the bearings are standard parts in the mechanical field, and are directly selected according to selected models before the bearings are used, so that the phenomenon that some bearings for detecting the rotation flexibility are used is inevitable, and the phenomenon that a device using the bearings is not flexible in rotation is avoided.
Disclosure of Invention
The invention aims to solve the technical problem of providing a bearing rotation flexibility testing device, which overcomes the problems that the bearing rotation flexibility cannot be detected and the like, and increases the function of testing the bearing rotation flexibility.
The invention is realized by the following technical scheme.
The bearing rotation flexibility testing device comprises a machine body, wherein a testing cavity is arranged at the left end in the machine body, a transmission cavity is arranged at the right upper end in the machine body, a clamping mechanism for clamping a bearing is arranged in the transmission cavity, a testing mechanism for testing the bearing is arranged in the testing cavity, and a resetting mechanism for resetting a tested device is also arranged in the transmission cavity;
the testing mechanism comprises a fixed shaft fixed on the left cavity wall of the testing cavity, a fixed block is fixedly arranged on the right end face of the fixed shaft, four ejector block cavities with outward openings are arranged on the fixed block at equal intervals, ejector blocks capable of moving up and down in the cavities are arranged in the ejector block cavities, an elastic spring is connected between the lower end face of the ejector block and the lower cavity wall of the ejector block cavity, a rotating block is arranged at the left end of the fixed shaft, an opening cavity with a right opening is arranged at the right end of the rotating block, four pressing block cavities with inward openings are arranged in the cavity wall of the opening cavity at equal intervals, a pressing block cavity capable of moving up and down in the cavity is arranged in the pressing block cavity, a pressure spring is connected between the lower end face of the pressing block cavity and the lower cavity wall of the pressing block cavity, a second driven cavity communicated with the testing cavity is arranged in the upper cavity wall of the left end of, the rotating rod is provided with a driving bevel gear and a rotating gear, the rotating gear is connected with the outer wall of the rotating block in a meshed mode, the upper wall of the second driven cavity rotates to be provided with a rotating shaft, the upper end of the rotating shaft extends into the external space, the lower end of the rotating shaft is connected with the driving bevel gear in a meshed mode, the upper end of the rotating shaft is provided with an instrument panel located on the upper end face of the machine body, scales are arranged on the instrument panel, and a pointer located on the right side of the instrument panel is fixedly arranged on the.
Furthermore, a moving cavity is arranged in the upper cavity wall at the right end of the test cavity, a moving block capable of moving back and forth in the cavity is arranged in the moving cavity, a return spring is connected between the rear end face of the moving block and the rear cavity wall of the moving cavity, a hemp rope is further connected to the rear end face of the moving block, a sliding cavity with a forward opening is arranged on the rear cavity wall at the right end of the test cavity, a displacement plate capable of moving back and forth in the cavity is arranged in the sliding cavity, the upper end of the displacement plate is fixedly connected with the lower end face of the moving block, the lower end face of the displacement plate can be meshed with the rotating block, a limiting cavity with a downward opening is arranged on the upper cavity wall of the moving cavity, a limiting block capable of moving up and down in the cavity is arranged in the limiting cavity, a compression spring is connected between the upper end face of the limiting block and the upper cavity wall of the limiting cavity, the rope winding device is characterized in that a ratchet wheel and a first rope winding wheel are arranged on the driven shaft, the first rope winding wheel is in friction connection with the driven shaft, twelve rotating cavities with outward openings are arranged in the ratchet wheel, fixing rods are fixedly arranged on the upper cavity wall and the lower cavity wall in each rotating cavity, rotating blocks are arranged on the fixing rods, torsion springs are connected between the rotating blocks and the fixing rods, and the pull ropes are wound on the first rope winding wheel.
Further, the clamping mechanism comprises a motor fixed on the upper cavity wall of the transmission cavity, a first driven cavity is arranged at the lower side of the transmission cavity, the lower end of the motor is in power connection with a transmission shaft of which the lower end is rotationally connected with the lower cavity wall of the first driven cavity, a rotary gear positioned in the first driven cavity is arranged at the lower end of the transmission shaft, a displacement cavity with a left opening is arranged on the right cavity wall of the test cavity, a clamping block capable of moving left and right in the cavity is arranged in the displacement cavity, a tension spring is connected between the right end surface of the clamping block and the right cavity wall of the transmission shaft, a rack of which the right end extends into the first driven cavity is fixedly arranged on the right end surface of the clamping block, the front end surface of the rack is meshed with the rotary gear, a fixing plate is fixedly arranged on the upper end surface of the right end of the rack, a stop cavity with a downward opening is arranged in, an elastic spring is connected between the upper end face of the check block and the upper cavity wall of the check block cavity, and a rope is connected to the upper end face of the check block.
Further, canceling release mechanical system is connected including rotating the rotary rod of the upper and lower chamber wall of transmission chamber right-hand member, the rotary rod upper end be equipped with ratchet structure is the same and about the transmission shaft is controlled the pile the same the ratchet, the rotary rod lower extreme is equipped with second rope winding wheel and third rope winding wheel, the second rope winding wheel with the third rope winding wheel is in friction connection on the rotary rod, the winding is equipped with on the second rope winding wheel the rope made of hemp, the winding is equipped with on the third rope winding wheel the rope.
Further, the pulling force of the tension spring is larger than the friction force applied to the clamping block when the clamping block slides in the displacement cavity.
The invention has the beneficial effects that: the bearing rotation testing device is simple in structure and convenient and fast to operate, the bearing to be tested can be automatically clamped during working, the rotation flexibility of the bearing can be tested according to the characteristics of the bearing after clamping is finished, the resistance of the bearing during rotation is tested by using rotation inertia in the testing process, and the testing result is compared with the testing result of a standard bearing so as to obtain the testing conclusion.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram at A-A in FIG. 1 according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram at B-B in FIG. 1 according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram at C-C in FIG. 1 according to an embodiment of the present invention.
Detailed Description
The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The bearing rotation flexibility test device described in conjunction with the attached figures 1-4 comprises a machine body 10, a test cavity 16 is arranged at the left end in the machine body 10, a transmission cavity 44 is arranged at the upper right end in the machine body 10, a clamping mechanism 57 for clamping a bearing is arranged in the transmission cavity 44, a test mechanism 28 for testing the bearing is arranged in the test cavity 16, a reset mechanism 43 for resetting a tested device is further arranged in the transmission cavity 44, the test mechanism 28 comprises a fixed shaft 24 fixed on the left cavity wall of the test cavity 16, a fixed block 23 is fixedly arranged at the right end face of the fixed shaft 24, four ejector block cavities 26 with outward openings are equidistantly arranged on the fixed block 23, an ejector block 27 capable of moving up and down in the cavity is arranged in the ejector block cavity 26, an elastic spring 25 is connected between the lower end face of the ejector block 27 and the lower cavity wall of the ejector block cavity 26, a rotating block 22 is arranged at the left end of the fixed shaft 24, the rotating block 22 right-hand member is equipped with opening chamber 17 to the right of opening, the equidistance is equipped with four inside briquetting chambers 19 of opening in the chamber wall of opening chamber 17, be equipped with the briquetting chamber 20 that can reciprocate in the intracavity in the briquetting chamber 19, briquetting chamber 20 lower extreme face with pressure spring 18 is established in the connection between the chamber wall under the briquetting chamber 19, be equipped with the intercommunication in the last chamber wall of test chamber 16 left end the second driven chamber 33 of test chamber 16, it is equipped with dwang 31 to rotate between the chamber wall about the second driven chamber 33, be equipped with drive bevel gear 30 and rotating gear 29 on the dwang 31, rotating gear 29 with rotating block 22 outer wall meshing connection, second driven chamber 33 upper chamber wall rotation is equipped with the rotation axis 34 that the upper end stretches into external space, rotation axis 34 lower extreme be equipped with 3 that the drive bevel gear 30 meshing connection, rotation axis 34 upper end is equipped with the panel 35 that is located the fuselage 10 upper end face, the instrument panel 35 is provided with scales 65, and the upper end surface of the body 10 is fixedly provided with a pointer 46 positioned on the right side of the instrument panel 35.
Beneficially, a moving cavity 62 is arranged in an upper cavity wall at the right end of the test cavity 16, a moving block 67 capable of moving back and forth in the cavity is arranged in the moving cavity 62, a return spring 68 is connected between a rear end face of the moving block 67 and a rear cavity wall of the moving cavity 62, a hemp rope 47 is further connected to a rear end face of the moving block 67, a sliding cavity 69 with a forward opening is arranged on the rear cavity wall at the right end of the test cavity 16, a displacement plate 36 capable of moving back and forth in the cavity is arranged in the sliding cavity 69, an upper end of the displacement plate 36 is fixedly connected with a lower end face of the moving block 67, a lower end face of the displacement plate 36 is in meshing connection with the rotating block 22, a limiting cavity 64 with a downward opening is arranged on the upper cavity wall of the moving cavity 62, a limiting block 63 capable of moving up and down in the cavity is arranged in the limiting cavity 64, and, the upper end face of the limiting block 63 is connected with a pull rope 37, a driven shaft 39 is arranged between the upper cavity wall and the lower cavity wall of the left end of the transmission cavity 44 in a rotating mode, a ratchet wheel 40 and a first rope winding wheel 38 are arranged on the driven shaft 39, the first rope winding wheel 38 is in friction connection with the driven shaft 39, twelve rotating cavities 61 with outward openings are arranged in the ratchet wheel 40, fixing rods 59 are fixedly arranged on the upper cavity wall and the lower cavity wall in the rotating cavities 61, rotating blocks 60 are arranged on the fixing rods 59, torsion springs 58 are connected between the rotating blocks 60 and the fixing rods 59, and the pull rope 37 is wound on the first rope winding wheel 38.
Beneficially, the clamping mechanism 57 includes a motor 41 fixed on the upper cavity wall of the transmission cavity 44, a first driven cavity 11 is arranged on the lower side of the transmission cavity 44, a transmission shaft 12 with a lower end rotatably connected with the lower cavity wall of the first driven cavity 11 is dynamically connected to the lower end of the motor 41, a rotary gear 56 located in the first driven cavity 11 is arranged at the lower end of the transmission shaft 12, a displacement cavity 13 with a leftward opening is arranged on the right cavity wall of the test cavity 16, a clamping block 15 capable of moving left and right in the cavity is arranged in the displacement cavity 13, a tension spring 14 is connected between the right end surface of the clamping block 15 and the right cavity wall of the transmission shaft 12, a rack 55 with a right end extending into the first driven cavity 11 is fixedly arranged on the right end surface of the clamping block 15, the front end surface of the rack 55 is engaged with the rotary gear 56, and a fixing plate 54 is fixedly arranged on the, a stop block cavity 51 with a downward opening is arranged in the upper cavity wall of the first driven cavity 11, a stop block 53 capable of moving up and down in the cavity is arranged in the stop block cavity 51, an elastic spring 52 is connected between the upper end surface of the stop block 53 and the upper cavity wall of the stop block cavity 51, and a rope 49 is connected and arranged on the upper end surface of the stop block 53.
Advantageously, the return mechanism 43 comprises a rotating rod 45 rotatably connected to the upper and lower chamber walls at the right end of the transmission chamber 44, the upper end of the rotating rod 45 is provided with the same ratchet 40, and the same ratchet 40 is stacked left and right with respect to the transmission shaft 12, the lower end of the rotating rod 45 is provided with a second rope winding wheel 48 and a third rope winding wheel 50, the second rope winding wheel 48 and the third rope winding wheel 50 are frictionally connected to the rotating rod 45, the hemp rope 47 is wound around the second rope winding wheel 48, and the rope 49 is wound around the third rope winding wheel 50.
Advantageously, the tension of the tension spring 14 is greater than the friction to which the clamping block 15 is subjected when sliding inside the displacement chamber 13.
In the initial state, the clamping block 15 is located in the displacement cavity 13 under the tension of the tension spring 14, the moving block 67 is located at the rear end in the moving cavity 62 under the limiting action of the limiting block 63, and the displacement plate 36 is located at the rear side of the rotating block 22.
When the bearing is clamped, the bearing is sleeved at the right end of the fixed block 23, the motor 41 is started, the motor 41 works to drive the transmission shaft 12 and the driving gear 42 and the rotating gear 56 on the transmission shaft 12 to rotate, the rotating gear 56 rotates to drive the rack 55 meshed and connected with the rotating gear to move leftwards, so that the clamping block 15 is driven to move leftwards to push the bearing to move leftwards, the bearing moves leftwards to be positioned on the four top blocks 27, the outer part of the bearing is clamped by the four pressing block cavities 20, and when the rack 55 moves leftwards to be positioned on the left side of the stop block 53 by the fixed plate 54, the rack 55 is just disengaged from the rotating gear 56 and is;
when a bearing is tested, the driving gear 42 rotates to drive the ratchet 40 to rotate by stirring the rotating block 60 on the left ratchet 40, so as to drive the driven shaft 39 and the first rope winding wheel 38 on the driven shaft 39 to rotate, the first rope winding wheel 38 rotates to tighten the pulling rope 37, the limiting block 63 moves upwards under the action of the pulling force of the pulling rope 37 to separate from the blocking of the moving block 67, the displacement plate 36 moves forwards under the action of the elastic force of the return spring 68, so as to drive the displacement plate 36 to move forwards, the displacement plate 36 is meshed with the rotating block 22 in the process of moving forwards, so as to drive the rotating block 22 to rotate, when the displacement plate 36 moves forwards to be disengaged from the outer wall of the rotating block 22, the rotating block 22 continues to rotate due to the inertia of the rotating block 22, the rotating block 22 rotates to drive the rotating gear 29 meshed with the rotating block to rotate, so as to drive the rotating rods 31 and the driving bevel, the driving bevel gear 30 rotates to drive the driven bevel gear 32 which is in meshed connection with the driving bevel gear to rotate, so that the rotating shaft 34 and the instrument panel 35 at the upper end of the rotating shaft 34 are driven to rotate, the left end of the pointer 46 corresponds to the scale on the instrument panel 35, the rotating angle of the instrument panel 35 can be known, and then the rotating flexibility of the test bearing can be known by comparing the rotating angle of the instrument panel 35 obtained by testing a normal standard bearing in advance;
during resetting, the starting motor 41 reversely rotates, so that the right ratchet wheel 40 is driven to rotate through mechanical transmission, the left ratchet wheel 40 does not rotate, the right ratchet wheel 40 rotates to drive the rotating rod 45 and the second rope winding wheel 48 and the third rope winding wheel 50 on the rotating rod 45 to rotate, so that the hemp rope 47 and the rope 49 are tightened respectively, the stop block 53 moves upwards under the tensile force of the rope 49 to leave the stop fixing plate 54, the rack 55 and the clamping block 15 can move rightwards to reset, the moving block 67 moves backwards under the tensile force of the hemp rope 47 to reset, the limiting block 63 is located at the front side of the moving block 67 again to stop the moving block 67, the resetting is completed, and the motor 41 is turned off.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a bearing rotation flexibility ratio test equipment, includes the fuselage, its characterized in that: the testing device comprises a machine body, a testing cavity, a transmission cavity, a clamping mechanism, a testing mechanism and a resetting mechanism, wherein the testing cavity is arranged at the left end in the machine body, the transmission cavity is arranged at the upper right end in the machine body, the clamping mechanism for clamping a bearing is arranged in the transmission cavity, the testing mechanism for testing the bearing is arranged in the testing cavity, and the resetting mechanism for resetting a tested device is also arranged in the transmission cavity;
the testing mechanism comprises a fixed shaft fixed on the left cavity wall of the testing cavity, a fixed block is fixedly arranged on the right end face of the fixed shaft, four ejector block cavities with outward openings are arranged on the fixed block at equal intervals, ejector blocks capable of moving up and down in the cavities are arranged in the ejector block cavities, an elastic spring is connected between the lower end face of the ejector block and the lower cavity wall of the ejector block cavity, a rotating block is arranged at the left end of the fixed shaft, an opening cavity with a right opening is arranged at the right end of the rotating block, four pressing block cavities with inward openings are arranged in the cavity wall of the opening cavity at equal intervals, a pressing block cavity capable of moving up and down in the cavity is arranged in the pressing block cavity, a pressure spring is connected between the lower end face of the pressing block cavity and the lower cavity wall of the pressing block cavity, a second driven cavity communicated with the testing cavity is arranged in the upper cavity wall of the left end of, the rotating rod is provided with a driving bevel gear and a rotating gear, the rotating gear is connected with the outer wall of the rotating block in a meshed mode, the upper wall of the second driven cavity rotates to be provided with a rotating shaft, the upper end of the rotating shaft extends into the external space, the lower end of the rotating shaft is connected with the driving bevel gear in a meshed mode, the upper end of the rotating shaft is provided with an instrument panel located on the upper end face of the machine body, scales are arranged on the instrument panel, and a pointer located on the right side of the instrument panel is fixedly arranged on the.
2. The bearing rotational flexibility testing apparatus of claim 1, wherein: a moving cavity is arranged in the upper cavity wall at the right end of the test cavity, a moving block capable of moving back and forth in the cavity is arranged in the moving cavity, a reset spring is connected between the rear end face of the moving block and the rear cavity wall of the moving cavity, a hemp rope is further connected to the rear end face of the moving block, a sliding cavity with a forward opening is arranged on the rear cavity wall at the right end of the test cavity, a displacement plate capable of moving back and forth in the cavity is arranged in the sliding cavity, the upper end of the displacement plate is fixedly connected with the lower end face of the moving block, the lower end face of the displacement plate can be meshed and connected with the rotating block, a limiting cavity with a downward opening is arranged on the upper cavity wall of the moving cavity, a limiting block capable of moving up and down in the cavity is arranged in the limiting cavity, a compression spring is connected between the upper end face of the limiting block and the upper cavity wall, the rope winding device is characterized in that a ratchet wheel and a first rope winding wheel are arranged on the driven shaft, the first rope winding wheel is in friction connection with the driven shaft, twelve rotating cavities with outward openings are arranged in the ratchet wheel, fixing rods are fixedly arranged on the upper cavity wall and the lower cavity wall in each rotating cavity, rotating blocks are arranged on the fixing rods, torsion springs are connected between the rotating blocks and the fixing rods, and the pull ropes are wound on the first rope winding wheel.
3. The bearing rotational flexibility testing apparatus of claim 1, wherein: the clamping mechanism comprises a motor fixed on the upper cavity wall of the transmission cavity, a first driven cavity is arranged at the lower side of the transmission cavity, the lower end of the motor is in power connection with a transmission shaft of which the lower end is rotationally connected with the lower cavity wall of the first driven cavity, a rotary gear positioned in the first driven cavity is arranged at the lower end of the transmission shaft, a displacement cavity with a left opening is arranged on the right cavity wall of the test cavity, a clamping block capable of moving left and right in the cavity is arranged in the displacement cavity, a tension spring is connected between the right end surface of the clamping block and the right cavity wall of the transmission shaft, a rack with the right end extending into the first driven cavity is fixedly arranged on the right end surface of the clamping block, the front end surface of the rack is meshed with the rotary gear, a fixed plate is fixedly arranged on the upper end surface of the right end of the rack, a stop cavity with a downward opening is arranged, an elastic spring is connected between the upper end face of the check block and the upper cavity wall of the check block cavity, and a rope is connected to the upper end face of the check block.
4. The bearing rotational flexibility testing apparatus of claim 1, wherein: reset mechanism is connected including rotating the rotary rod of the upper and lower chamber wall of transmission chamber right-hand member, the rotary rod upper end be equipped with ratchet structure is the same and about pile up the same about the transmission shaft the ratchet, the rotary rod lower extreme is equipped with second rope winding wheel and third rope winding wheel, the second rope winding wheel with the third rope winding wheel is in friction connection on the rotary rod, the winding is equipped with on the second rope winding wheel the rope made of hemp, the winding is equipped with on the third rope winding wheel the rope.
5. The bearing rotational flexibility testing apparatus of claim 1, wherein: the tension of the tension spring is larger than the friction force applied to the clamping block when the clamping block slides in the displacement cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010100470.0A CN111157243B (en) | 2020-02-18 | 2020-02-18 | Bearing rotation flexibility ratio test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010100470.0A CN111157243B (en) | 2020-02-18 | 2020-02-18 | Bearing rotation flexibility ratio test equipment |
Publications (2)
| Publication Number | Publication Date |
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| CN111157243A true CN111157243A (en) | 2020-05-15 |
| CN111157243B CN111157243B (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010100470.0A Active CN111157243B (en) | 2020-02-18 | 2020-02-18 | Bearing rotation flexibility ratio test equipment |
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| CN (1) | CN111157243B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112697432A (en) * | 2021-01-14 | 2021-04-23 | 上海闲吉汽车用品有限公司 | Device for detecting quality of bearing |
| CN113532862A (en) * | 2021-09-16 | 2021-10-22 | 江苏如非轴承科技有限公司 | Automatic detection device for bearing rotation performance |
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| CN110567719A (en) * | 2019-10-25 | 2019-12-13 | 嵊州宁丰轴承有限公司 | Bearing rotation performance detection equipment |
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| CN201262591Y (en) * | 2008-09-05 | 2009-06-24 | 无锡市江益轴承自动化设备有限公司 | Device for detecting bearings flexibility |
| CN201688970U (en) * | 2010-05-06 | 2010-12-29 | 无锡市汇川自动化机械有限公司 | Rotary structure of bearing flexibility detecting device |
| CN102680231A (en) * | 2012-05-28 | 2012-09-19 | 王建 | Bearing flexibility measuring device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112697432A (en) * | 2021-01-14 | 2021-04-23 | 上海闲吉汽车用品有限公司 | Device for detecting quality of bearing |
| CN112697432B (en) * | 2021-01-14 | 2022-11-08 | 江苏新恒鼎装备制造有限公司 | Device for detecting quality of bearing |
| CN113532862A (en) * | 2021-09-16 | 2021-10-22 | 江苏如非轴承科技有限公司 | Automatic detection device for bearing rotation performance |
| CN113532862B (en) * | 2021-09-16 | 2022-02-15 | 江苏如非轴承科技有限公司 | Automatic detection device for bearing rotation performance |
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|---|---|
| CN111157243B (en) | 2020-12-15 |
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