CN109269380B - Bearing inner race axial circle runout detection device - Google Patents
Bearing inner race axial circle runout detection device Download PDFInfo
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- CN109269380B CN109269380B CN201811454981.1A CN201811454981A CN109269380B CN 109269380 B CN109269380 B CN 109269380B CN 201811454981 A CN201811454981 A CN 201811454981A CN 109269380 B CN109269380 B CN 109269380B
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- motor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
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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)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a detection device, in particular to a detection device for axial runout of an inner ring of a bearing, and belongs to the field of bearings. The device comprises an arc base and a bracket track arranged on the arc base, wherein a bracket is arranged in the bracket track, a bulge is arranged at the center of the top end of the bracket, two sides of the bulge form a step table, and a workpiece to be tested is arranged and erected on the step table; a motor assembly is arranged at the center of the circular arc base, and a load block is arranged on the end face of the inner ring of the workpiece to be tested; a detection mechanism is further arranged between the load block and the workpiece to be detected, a stand column cushion block is arranged at the bottom of the detection mechanism, a track is arranged at the upper end of the stand column cushion block, and the stand column cushion block is fixedly arranged on the arc base; the invention can accurately detect the axial runout of the bearing, and has high detection rate; the device can measure different specification bearings, can fasten the support through the bolt on the support, can guarantee to be measured the bearing and take place the skew in the measurement process centering all the time.
Description
Technical Field
The invention relates to a detection device, in particular to a detection device for axial runout of an inner ring of a bearing, and belongs to the field of bearings.
Background
The wind power industry develops rapidly, and the wind power installation quantity increases year by year. The main model of the wind power generator set is still a doubly fed model with a gearbox. The gear box is a key component in the double-feed type fan, and is stressed severely, so that the damage rate is at the first position. The bearing is one of the weakest links, the service performance of the bearing is good or bad, and the service life of the bearing is related to the normal operation of the gearbox and even the whole fan. The accuracy of the bearing plays a critical role in its performance and service life.
At present, a great part of wind driven generator bearings depend on foreign import, and the foreign bearings are high in price and long in supply period, so that the development of the whole wind driven generator enterprises in China is restricted. As a tap enterprise of domestic bearings, it is necessary to make a contribution to the acceleration of the localization pace of the speed increasing box bearings. The axial runout of the inner race of the complete set of bearings is the result of the influence of a plurality of factors (such as the fluctuation amount of the diameter of the rolling bodies, the raceway defects and waviness, the fluctuation amount of the contact angle, the flatness of the reference end face/surface and lubricant impurities), and the traditional manual detection is difficult to accurately measure.
Disclosure of Invention
In order to achieve the purpose of efficiently and accurately detecting the axial runout of the inner ring of the bearing, the invention provides the axial runout detection device applied to the inner ring of the bearing, which can accurately detect the axial runout of the bearing.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the bearing inner ring axial circle runout detection device comprises an arc base and a support rail arranged on the arc base, wherein a support is arranged in the support rail, a bulge is arranged at the center of the top end of the support, two sides of the bulge form a step table, and a workpiece to be detected is arranged and erected on the step table; a motor assembly is arranged at the center of the circular arc base, and a load block is arranged on the end face of the inner ring of the workpiece to be tested; a detection mechanism is further arranged between the load block and the workpiece to be detected, a stand column cushion block is arranged at the bottom of the detection mechanism, a track is arranged at the upper end of the stand column cushion block, and the stand column cushion block is fixedly arranged on the arc base;
the detection mechanism comprises a lever 13, a dial indicator 15, a lever bracket 14, a shaft 19, a ball seat 23, a plate spring 22, a meter bracket 11, an adjusting nut 12, a fastening sleeve 16, an adjusting sleeve 17 and a gasket 18;
the dial indicator 15 in the detection mechanism realizes the position adjustment in the horizontal direction through the stand column cushion block of the piece 10, the dial indicator 15 is connected to the adjusting sleeve 17 through the meter frame 11, the adjusting sleeve 17 is sleeved on the measuring stand column 2, the position can be adjusted up and down through the threads on the adjusting sleeve and the measuring stand column, and the position can be fixed in the vertical direction through the upper fastening sleeve 16 and the lower fastening sleeve 16 after the position is adjusted; the direction of the dial indicator 15 can be rotated through the dial indicator nut 12, and meanwhile, the fine adjustment of the vertical direction of the dial indicator 15 can be realized and can be fixed. The front end of the lever 13 is provided with a convex point which is used as a measuring point, the center of the lever in the horizontal direction is provided with a hole, the lever is connected to the lever frame 14 through a shaft 19 and a ball seat 23, and can swing up and down with small amplitude by taking the shaft as the center, the displacement is transmitted to the right side from the left side, the right side is contacted with the measuring end of the dial indicator 15, and the displacement is fed back to the dial indicator; the plate spring 22 is pressed on the right side of the lever 13, so that the left side of the lever is tightly contacted with the bearing, and errors are reduced. The accurate measurement of the axial runout of the bearing inner ring can be realized through the parts.
The number of the bracket tracks is 3, and the included angle between every two adjacent bracket tracks is 120 degrees;
the support can be adjusted in the support track, so that the bearing is not eccentric, and the bearings with different specifications can be measured;
the section of the bracket is of an L-shaped structure, and the width of the bracket is the same as the width of the bracket track;
the bolt holes are formed in the bottom edges of the brackets, bolts are arranged in the bolt holes, the brackets can be fastened through the bolts on the brackets, the centering of the tested bearings can be ensured all the time, and the deflection is avoided;
the motor assembly comprises a motor frame, a motor and a motor seat rod, wherein the motor is connected with the load block, the motor is arranged in the motor frame, and the motor is arranged on the motor seat rod; the motor drives the load block to rotate, the load block drives the bearing inner ring to rotate, the machining precision of the connecting part of the load block and the motor is higher, the consistency between the gravity center of the load block and the rotation center of the motor can be effectively ensured, and the unbalanced load of the bearing can be effectively prevented;
the motor assembly can adjust the motor rotating speed according to the specification of the bearing, so that the bearing can stably run in the measuring process;
the bearing can be loaded by the load block, the weight of the load block is adjustable, the load block is placed on the end face of the bearing inner ring, and a stable central axial load is applied to the bearing inner ring so as to ensure that rolling bodies are contacted with the rollaway nest (for a tapered roller bearing, the rolling bodies can be contacted with the flange on the back face of the inner ring and the rollaway nest), and the influence of other factors of the bearing (such as the diameter fluctuation of the rolling bodies, the rollaway nest defect and the waviness, the contact angle fluctuation, the reference end face/surface flatness and lubricant impurities) on a measurement result is eliminated as far as possible.
The specific operation process adopting the structure comprises the following steps:
the method comprises the steps of adjusting a bracket through the appearance size of a measured workpiece, placing a bearing to be measured on the bracket, fixing the position of the bracket, selecting the weight of a load block according to the diameter of a product, connecting the load block with a motor, placing the load block on the inner end surface of the bearing, and placing a lever which is used for measurement and is connected with a dial indicator at the measuring position of an inner ring of the bearing; and starting the motor, wherein the motor drives the load block and the bearing inner ring to rotate, and the motor speed control button is adjusted to select a proper inner ring rotating speed, and the motor reads the numerical value through the measuring meter after running at a constant speed for 1-2 minutes.
The beneficial effects of adopting above-mentioned structure are: the invention can accurately detect the axial runout of the bearing, and has high detection rate; the device can measure bearings with different specifications, the bracket can be fastened through the bolts on the bracket, and the measured bearings can be ensured to be always centered and not offset in the measuring process; the machining precision of the connection part of the load block and the motor is high, so that the consistency between the gravity center of the load block and the rotation center of the motor can be effectively ensured, and the unbalanced load of the bearing can be effectively prevented; the motor rotating speed can be adjusted according to the bearing specification in the device, so that the bearing can stably run in the measuring process, meanwhile, the bearing can uniformly run for 1-2 minutes before measuring, and the gap between the bearing rolling body and the roller path can be effectively eliminated under the combined action of the load blocks. Compared with the traditional manual measurement process, the method has the advantages that the center axial load borne by the bearing is offset due to the fact that the force is applied to the bearing in the manual rotation process, and the pause in the rotation process affects the measurement result, particularly the high-precision bearing. The electric rotating bearing is adopted, so that the adverse effect can be avoided, and the accuracy of measurement is ensured.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a cross-sectional view of fig. 1.
Fig. 3 is an enlarged view at a in fig. 2.
Fig. 4 is an enlarged view at B in fig. 2.
Fig. 5 is a top view of fig. 1.
In the figure, 1, support rail, 2, upright post, 3, motor frame, 4, motor, 5, motor seat post, 6, support, 7, measured bearing, 9, load block, 10, upright post pad, 11, meter frame, 12, meter nut, 13, lever, 14, lever frame, 15, dial indicator, 16, fastening sleeve, 17, adjusting sleeve, 18, washer, 19, shaft, 22, leaf spring, 23.
Detailed Description
The bearing inner ring axial circle runout detection device comprises an arc base and a support rail 1 arranged on the arc base, wherein a support 6 is arranged in the support rail 1, a bulge is arranged in the center of the top end of the support 6, two sides of the bulge form a step table, and a workpiece 7 to be detected is arranged and erected on the step table; a motor assembly is arranged at the center of the arc base, and a load block 9 is arranged on the end face of the inner ring of the workpiece 7 to be tested; a detection mechanism is further arranged between the load block 9 and the workpiece 7 to be detected, a stand column cushion block 10 is arranged at the bottom of the detection mechanism, a track is arranged at the upper end of the stand column cushion block 10, and the stand column cushion block 10 is fixedly arranged on the arc base;
the detection mechanism comprises a lever 13, a dial indicator 15, a lever bracket 14, a shaft 19, a ball seat 23, a plate spring 22, a meter bracket 11, an adjusting nut 12, a fastening sleeve 16, an adjusting sleeve 17 and a gasket 18;
the dial indicator 15 in the detection mechanism realizes horizontal position adjustment through the stand column cushion block of the piece 10, the dial indicator 15 is connected to the adjusting sleeve 17 through the meter frame 11, the adjusting sleeve 17 is sleeved on the measuring stand column 2, the position can be adjusted up and down through threads on the adjusting sleeve 17 and the measuring stand column 2, and after the position is adjusted, the position can be fixed in the vertical direction through the upper fastening sleeve 16 and the lower fastening sleeve 16; the direction of the dial indicator 15 can be rotated through the dial indicator nut 12, and meanwhile, the fine adjustment of the vertical direction of the dial indicator 15 can be realized and can be fixed. The front end of the lever 13 is provided with a convex point which is used as a measuring point, the center of the lever in the horizontal direction is provided with a hole, the lever is connected to the lever frame 14 through a shaft 19 and a ball seat 23, and can swing up and down with small amplitude by taking the shaft 19 as the center, the displacement is transmitted to the right side from the left side, the right side is contacted with the measuring end of the dial indicator 15, and the displacement is fed back to the dial indicator 15; the plate spring 22 is pressed on the right side of the lever 13, so that the left side of the lever is tightly contacted with the bearing, errors are reduced, and the accurate measurement of the axial runout of the inner ring of the bearing can be realized through the parts.
The number of the bracket rails 1 is 3, and the included angle between every two adjacent bracket rails 1 is 120 degrees;
the support 6 can be adjusted in the support track 1, so that the bearing is not eccentric, and the bearings with different specifications can be measured;
the section of the bracket 6 is of an L-shaped structure, and the width of the bracket 6 is the same as that of the bracket track 1;
the bottom edge of the bracket 6 is provided with a bolt hole, a bolt is arranged in the bolt hole, the bracket 6 can be fastened through the bolt on the bracket, the centering of the bearing to be tested can be ensured all the time, and no deviation occurs;
the motor assembly comprises a motor frame 3, a motor 4 and a motor seat rod 5, wherein the motor 4 is connected with a load block 9, the motor 4 is arranged in the motor frame 3, and the motor 4 is arranged on the motor seat rod 5; the motor 4 drives the load block 9 to rotate, the load block 9 drives the bearing inner ring to rotate, the machining precision of the connecting part of the load block 9 and the motor 4 is higher, the consistency between the gravity center of the load block and the rotation center of the motor can be effectively ensured, and the unbalanced load of the bearing can be effectively prevented;
the method comprises the steps of adjusting a bracket 6 through the appearance size of a measured workpiece 7, placing a bearing to be measured on the bracket 6, fixing the position of the bracket, selecting the weight of a load block 9 according to the diameter of a product, connecting the load block 9 with a motor 4, placing the load block on the inner end surface of the bearing, and placing a lever 13 which is used for measurement and is connected with a dial indicator into the measuring position of an inner ring of the bearing; and starting the motor 4, wherein the motor 4 drives the load block 9 and the bearing inner ring to rotate, and the proper inner ring rotating speed is selected by adjusting a speed control button of the motor 4, and the numerical value is read by a measuring meter after the motor runs at a constant speed for a period of time.
The device is applied to the detection process of the wind power speed increasing box bearing and the common bearing at present, and has the advantages of accurate detection data and high detection efficiency after multiple times of verification.
Claims (5)
1. Bearing inner race axial circle detection device that beats, its characterized in that: the device comprises an arc base and a bracket track arranged on the arc base, wherein a bracket is arranged in the bracket track, a bulge is arranged at the center of the top end of the bracket, two sides of the bulge form a step table, and a workpiece to be tested is arranged and erected on the step table; a motor assembly is arranged at the center of the circular arc base, and a load block is arranged on the end face of the inner ring of the workpiece to be tested; a detection mechanism is further arranged between the load block and the workpiece to be detected, a stand column cushion block is arranged at the bottom of the detection mechanism, a track is arranged at the upper end of the stand column cushion block, and the stand column cushion block is fixedly arranged on the arc base; the detection mechanism comprises a lever, a dial indicator, a lever frame, a shaft, a ball seat, a plate spring, a meter frame, an adjusting nut, a fastening sleeve, an adjusting sleeve and a gasket; the dial indicator is connected to the adjusting sleeve through the meter frame, and the upper end and the lower end of the adjusting sleeve are respectively provided with a fastening sleeve; the lower end of the dial indicator is provided with an adjusting nut, and the direction of the dial indicator is rotated by the adjusting nut; the front end of the lever is provided with a convex point, the center of the lever in the horizontal direction is provided with a hole, and the lever is connected to the lever frame through a shaft and a ball seat; the plate spring is pressed at one end of the lever, and the other end of the lever is tightly contacted with the bearing; the motor assembly comprises a motor frame, a motor and a motor seat rod, wherein the motor is connected with the load block, the motor is arranged in the motor frame, and the motor is arranged on the motor seat rod; the motor drives the load block to rotate, and the load block drives the bearing inner ring to rotate.
2. The bearing inner race axial runout detection device of claim 1, wherein: the number of the support rails is 3, and the included angle between every two adjacent support rails is 120 degrees.
3. The bearing inner race axial runout detection apparatus according to claim 2, wherein: the section of the bracket is of an L-shaped structure, and the width of the bracket is the same as the width of the bracket track.
4. A bearing inner race axial runout detection apparatus according to claim 3, wherein: the bottom edge of the bracket is provided with a bolt hole, a bolt is arranged in the bolt hole, and the bracket can be fastened through the bolt on the bracket.
5. The bearing inner race axial runout detection apparatus according to any one of claims 1 to 4, wherein: the method comprises the steps of adjusting a bracket through the appearance size of a measured workpiece, placing a bearing to be measured on the bracket, fixing the position of the bracket, selecting the weight of a load block according to the diameter of a product, connecting the load block with a motor, placing the load block on the inner end surface of the bearing, and placing a lever which is used for measurement and is connected with a dial indicator at the measuring position of an inner ring of the bearing; and starting the motor, wherein the motor drives the load block and the bearing inner ring to rotate, the rotating speed of the inner ring is selected by adjusting the motor speed control button, and the value is read by the measuring meter after the motor runs at a constant speed for 1-2 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811454981.1A CN109269380B (en) | 2018-11-30 | 2018-11-30 | Bearing inner race axial circle runout detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811454981.1A CN109269380B (en) | 2018-11-30 | 2018-11-30 | Bearing inner race axial circle runout detection device |
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| Publication Number | Publication Date |
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| CN109269380A CN109269380A (en) | 2019-01-25 |
| CN109269380B true CN109269380B (en) | 2023-08-29 |
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| CN201811454981.1A Active CN109269380B (en) | 2018-11-30 | 2018-11-30 | Bearing inner race axial circle runout detection device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682287B (en) * | 2019-02-20 | 2023-12-22 | 银川特种轴承有限公司 | Circular workpiece inner diameter roundness detection device |
| CN111854607A (en) * | 2020-08-10 | 2020-10-30 | 四川航天烽火伺服控制技术有限公司 | Motor rotor disc runout detection device |
| CN113983978B (en) * | 2021-11-03 | 2024-04-16 | 山东智连共同体轴承科技有限公司 | High-precision device for detecting runout of bearing inner ring |
| CN117570894A (en) * | 2023-11-15 | 2024-02-20 | 海赛斯(固安)科技有限公司 | Detection device for axial displacement of shaft-to-bearing |
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| CN103712534A (en) * | 2013-12-25 | 2014-04-09 | 合肥大道模具有限责任公司 | Tire mould circle run-out testing platform |
| CN103940315A (en) * | 2014-04-24 | 2014-07-23 | 新昌沛斯轴承配件有限公司 | Bearing circle run-out detecting device |
| RU2013141639A (en) * | 2013-09-10 | 2015-03-20 | Общество с ограниченной ответственностью "Газпром переработка" | DEVICE FOR MEASURING THE AXIAL BEATING OF THE OUTSIDE RING OF A ROLLING BEARING |
| WO2016052039A1 (en) * | 2014-09-29 | 2016-04-07 | Ntn株式会社 | Runout measurement device |
| CN208936909U (en) * | 2018-11-30 | 2019-06-04 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | A kind of bearing inner race axial circular jitter detection apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10118802B4 (en) * | 2000-08-07 | 2005-11-17 | Peter Lie | Device for centering a wheel |
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2018
- 2018-11-30 CN CN201811454981.1A patent/CN109269380B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2013141639A (en) * | 2013-09-10 | 2015-03-20 | Общество с ограниченной ответственностью "Газпром переработка" | DEVICE FOR MEASURING THE AXIAL BEATING OF THE OUTSIDE RING OF A ROLLING BEARING |
| CN103712534A (en) * | 2013-12-25 | 2014-04-09 | 合肥大道模具有限责任公司 | Tire mould circle run-out testing platform |
| CN103940315A (en) * | 2014-04-24 | 2014-07-23 | 新昌沛斯轴承配件有限公司 | Bearing circle run-out detecting device |
| WO2016052039A1 (en) * | 2014-09-29 | 2016-04-07 | Ntn株式会社 | Runout measurement device |
| CN208936909U (en) * | 2018-11-30 | 2019-06-04 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | A kind of bearing inner race axial circular jitter detection apparatus |
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