CN215931284U - Combined special bearing force measuring device - Google Patents
Combined special bearing force measuring device Download PDFInfo
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- CN215931284U CN215931284U CN202121831736.5U CN202121831736U CN215931284U CN 215931284 U CN215931284 U CN 215931284U CN 202121831736 U CN202121831736 U CN 202121831736U CN 215931284 U CN215931284 U CN 215931284U
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Abstract
A combined special bearing force measuring device. The utility model relates to a force measuring device of a measuring instrument, and aims to solve the problem that in the actual bearing inspection process in the prior art, the measuring force of a thin-wall bearing ring is not specifically calibrated and calibrated, and the accuracy of a measuring result is influenced by adjusting the measuring force of the measuring instrument by experience. The accurate manual displacement platform device detachable sets up the upper surface at bearing height measuring apparatu, bearing diameter measuring apparatu places the upper surface at accurate manual displacement platform device, bearing ring detachable sets up on bearing diameter measuring apparatu, the upper surface of bearing height measuring apparatu one side is connected and both mutually perpendicular settings with bearing height measuring apparatu stand, bearing height measuring apparatu stand passes through connecting device and the one end fixed connection of high accuracy electronic type pressure gauge, the sensing contact of the high accuracy electronic type pressure gauge other end and the internal diameter contact of bearing ring. The utility model is used for measuring the bearing ring.
Description
Technical Field
The utility model relates to a force measuring device of a measuring instrument, in particular to a combined special bearing force measuring device.
Background
The inner diameter size and the outer diameter size of a bearing are the sizes of interfaces for mounting and using the bearing and are important characteristic indexes of the bearing, the inner diameter size of the bearing is measured by a D92-series inner diameter inspection instrument in the bearing industry, the outer diameter size of the bearing is measured by a D91-series outer diameter inspection instrument in a contact comparison method, a certain measuring force is generated on the surface of a workpiece to be measured by a measuring contact, the thin-wall bearing ring of the workpiece to be measured generates elastic deformation when the measuring force is too large, the accuracy of a measuring result is influenced, the maximum measuring force of the measuring contact is not more than 2N according to the standard of the principle and the method GB/T307.2-2005 of rolling bearing measurement and inspection, the transition deformation of the thin-wall bearing ring is avoided, the measuring force is minimized on the premise of ensuring the stable indication value, and the measuring force of the thin-wall bearing ring has no specific calibration standard and calibration method in the actual inspection process of the bearing, the measuring force of a measuring instrument is adjusted by experience, the accuracy of a measuring result is difficult to guarantee, and when the size and the precision of the thin-wall bearing ring are detected (the thickness of the thinnest ring is only about 1.6 mm), the measured bearing ring part is deformed under the influence of the measured force when the measured force is larger than the requirement of a detection technical file, so that the measuring result is influenced. The measurement truth value is also influenced when the force measurement is smaller.
In conclusion, in the prior art, in the actual bearing inspection process, the measurement force of the thin-wall bearing ring is not specified in the calibration specification and calibration method, and the measurement force of the measurement instrument is adjusted by experience, so that the accuracy of the measurement result is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a combined special bearing force measuring device, aiming at solving the problems that the measuring force of a thin-wall bearing ring is not specified in a calibration standard and a calibration method in the actual bearing inspection process in the prior art, and the accuracy of the measuring result is influenced by adjusting the measuring force of a measuring instrument by experience.
The technical scheme of the utility model is as follows:
a combined special bearing force measuring device comprises a bearing height measuring instrument, a precise manual displacement platform device, a bearing inner diameter measuring instrument, a high-precision electronic tension and pressure gauge, a bearing height measuring instrument upright post and a connecting device;
the bearing height measuring instrument is placed on the workbench along the horizontal direction, the upper surface of the bearing height measuring instrument is detachably arranged on the precise manual displacement platform device, the upper surface of the bearing inner diameter measuring instrument is placed on the upper surface of the precise manual displacement platform device, the bearing ring is detachably arranged on the bearing inner diameter measuring instrument, the upper surface of one side of the bearing height measuring instrument is connected with the bearing height measuring instrument stand column, the bearing height measuring instrument stand column is vertically arranged with the bearing height measuring instrument stand column, the bearing height measuring instrument stand column is fixedly connected with one end of the high-precision electronic tension and pressure gauge through the connecting device, and the sensing contact at the other end of the high-precision electronic tension and pressure gauge is in contact with the inner diameter of the bearing ring.
Compared with the prior art, the utility model has the following effects:
the combined special bearing force measuring device provided by the utility model is used for calibrating the measuring force of a bearing ring on the bearing inner diameter measuring instrument through the combination of the bearing height measuring instrument, the precise manual displacement platform device, the bearing inner diameter measuring instrument, the high-precision electronic tension pressure gauge, the stand column of the bearing height measuring instrument and the connecting device, and the precise adjustment of the precise manual displacement platform device, so that the force measurement adjustment and calibration are realized, the force measurement in the measuring process can meet the requirements of technical documents, and the problems that in the prior art, the measuring force of the thin-wall bearing ring is not specified in the actual bearing inspection process, the measuring force of the measuring instrument is adjusted by experience, and the accuracy of the measuring result is influenced are solved.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the connection of the bearing height gauge post and the connecting device of the present invention;
figure 3 is a schematic view of a connection device of the present invention.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 3, and the combined special bearing force measuring device of the embodiment comprises a bearing height measuring instrument 1, a precise manual displacement platform device 2, a bearing inner diameter measuring instrument 3, a high-precision electronic tension pressure gauge 4, a bearing height measuring instrument upright post 5 and a connecting device 6;
bearing height measuring apparatu 1 is placed on the workstation along the horizontal direction, accurate manual displacement platform device 2 detachable sets up the upper surface at bearing height measuring apparatu 1, bearing internal diameter measuring apparatu 3 is placed at accurate manual displacement platform device 2's upper surface, bearing ring 7 detachable sets up on bearing internal diameter measuring apparatu 3, the upper surface of bearing height measuring apparatu 1 one side is connected with bearing height measuring apparatu stand 5 and both mutually perpendicular set up, bearing height measuring apparatu stand 5 draws the one end fixed connection of pressure gauge 4 through connecting device 6 and high accuracy electronic type, the sensing contact that the pressure gauge 4 other end was drawn to the high accuracy electronic type is contacted with the internal diameter of bearing ring 7.
The bearing height measuring instrument 1 is large in working surface, a precise manual displacement platform device 2 and a bearing inner diameter measuring instrument 3 are convenient to place, and a high-precision electronic type tension pressure gauge 4, a bearing height measuring instrument upright post 5 and a connecting device 6 are installed at the same time.
The second embodiment is as follows: this embodiment will be described with reference to fig. 1 to 3, and the embodiment
The precise manual displacement platform device 2 comprises a first moving platform 2-1, a second moving platform 2-2, a first moving micrometer 2-3 and a second moving micrometer 2-4;
the first moving platform 2-1 is connected with the second moving platform 2-2 in a sliding mode, the first moving platform 2-1 is located above the second moving platform 2-2, the first moving micrometer 2-3 is fixedly arranged on one side face of one side of the first moving platform 2-1, the second moving micrometer 2-4 is fixedly arranged on one side face of one side of the second moving platform 2-2 adjacent to the first moving micrometer 2-3, the bearing inner diameter measuring instrument 3 is fixedly arranged on the upper surface of the first moving platform 2-1, the first moving micrometer 2-3 bearing inner diameter measuring instrument 3 is screwed to horizontally move along the Y axis of the first moving platform 2-1 relative to the upper surface of the bearing height measuring instrument 1, and the second moving micrometer 2-4 bearing inner diameter measuring instrument 3 is screwed to horizontally move along the X axis of the second moving platform 2-2 relative to the upper surface of the bearing height measuring instrument 1.
The arrangement is that the precise manual displacement platform device 2 can realize the horizontal position movement of an X axis and a Y axis, is favorable for the micro displacement adjustment of the bearing inner diameter measuring instrument 3, and realizes the precise measurement of micro force measurement. The rest is the same as the first embodiment.
The third concrete implementation mode: the present embodiment is described with reference to fig. 1 to 3, and the bearing height measuring instrument column 5 of the present embodiment includes a vertical rod 5-1 and a connecting rod 5-2;
one end of the connecting rod 5-2 is sleeved on the vertical rod 5-1 and is perpendicular to the vertical rod 5-1, the other end of the connecting rod 5-2 is in threaded connection with the middle of the end face of one side of the connecting device 6, and the end face of the other side of the connecting device 6 is fixedly connected with one end of the high-precision electronic pull pressure gauge 4.
This is provided to fix the high-precision electronic tension pressure gauge 4. The others are the same as in the first or second embodiment.
The fourth concrete implementation mode: referring to fig. 1 to 3, the present embodiment is described, and the connecting rod 5-2 of the present embodiment includes a connecting sleeve 5-2-1, a connecting member 5-2-2, a fixing member 5-2-3, and a tightening nut 5-2-4;
the connecting sleeve 5-2-1 and the fixing piece 5-2-3 are fixedly connected through a connecting piece 5-2-2, the connecting sleeve 5-2-1 is sleeved on the middle upper portion of the vertical rod 5-1 through screwing a puller nut 5-2-4, and the fixing piece 5-2-3 is in threaded connection with the middle portion of one side end face of the connecting device 6.
This is provided to fix the high-precision electronic tension pressure gauge 4. The others are the same as the first, second or third embodiments.
The fifth concrete implementation mode: referring to fig. 1 to 3 to describe the present embodiment, the connecting device 6 of the present embodiment includes a rectangular plate 6-1 and a W-shaped plate 6-2;
the rectangular plate 6-1 and the W-shaped plate 6-2 are vertically connected and are integrated, rectangular grooves 6-3 are respectively machined in the two sides of the end face of the rectangular plate 6-1 along the length direction of the rectangular plate 6-1, the end face of one side of the rectangular plate 6-1 is in threaded connection with a fixing piece 5-2-3, and the end face of the other side of the rectangular plate 6-1 is fixedly connected with one end of a high-precision electronic tension pressure gauge 4.
The arrangement is such that the bearing height measuring instrument column 5 is connected with the high-precision electronic tension and pressure gauge 4. The others are the same as the first, second, third or fourth embodiments.
The sixth specific implementation mode: referring to fig. 1 to 3, the bearing height measuring instrument 1 of the present embodiment is a G906 bearing height measuring instrument, the bearing inner diameter measuring instrument 3 is a D923 bearing inner diameter measuring instrument, and the bearing height measuring instrument column 5 is a G906 bearing height measuring instrument column. The other embodiments are the same as the first, second, third, fourth or fifth embodiments.
Example (b):
the bearing rings with different thicknesses can avoid or reduce the measurement error caused by the elastic deformation of the bearing rings by adopting proper measurement force, the maximum limit measurement force can be obtained by tests, the environmental temperature of the tests requires 20 +/-2 ℃, a digital display instrument with the resolution of 0.1um is selected, the repeatability error of the instrument is within 0.5um, the combined special bearing measuring instrument force measuring device, the instrument and the bearing rings have the constant temperature for more than 4 hours, 5 bearing rings with different thicknesses are selected, fixed measurement points and sequence numbers are marked, each inner ring is respectively measured under the measurement forces of 2.5N, 2N, 1.5N, 1.0N, 0.5N, 0.4N and 0.3N, according to the analysis of the measurement result, the actual measurement value should be reduced along with the reduction of the measurement force, and when the measurement value is basically stable and is not changed, the measurement force is taken as the maximum limit measurement force. According to the test scheme, the test results of three bearing rings with different thicknesses are as follows:
TABLE 1 bearing ring measuring force test result with 1.5mm wall thickness
TABLE 2 bearing ring measuring force test results with wall thickness of 2.5mm
TABLE 3 test results of force measurement of 4.0mm thick bearing ring
As can be seen from the test measurement results in Table 1, the bearing ring with the wall thickness of 1.5mm has a large influence on the inner diameter size of the bearing ring due to the change of the measurement force, the measurement force gradually decreases from 2.5N, the inner diameter size gradually decreases, the inner diameter size decreases by 5-6um when the measurement force decreases to 0.5N, the inner diameter size of the bearing ring basically does not change when the measurement force decreases to 0.4N and 0.3N, the measurement force is too small when the measurement force is less than or equal to 0.3N, and the measurement value sometimes has an unstable phenomenon, so that the bearing ring with the wall thickness of less than 2mm is determined, and the maximum limit measurement force is not greater than 0.5N on the premise of ensuring the stable measurement result.
As can be seen from the test measurement results in Table 2, the bearing ring with the wall thickness of 2.5mm has a certain influence on the inner diameter size due to the change of the measurement force, the measurement force gradually decreases from 2.5N, the inner diameter size of the bearing ring gradually decreases, the inner diameter size of the bearing ring decreases by 1.9-2.3 um when the measurement force decreases to 1.0N, the inner diameter size of the bearing ring basically does not change when the measurement force decreases to below 1.0N, the measurement force is too small and sometimes unstable when the measurement force is less than or equal to 0.3N, so that the bearing ring with the wall thickness of 2-4 mm is determined, and the maximum limit measurement force is not greater than 1.0N on the premise of ensuring the stable measurement result.
As can be seen from the test measurement results in Table 3, the influence of the change of the measurement force on the inner diameter size of the bearing inner ring with the wall thickness of 4.0mm is small, the measurement force gradually decreases from 2.5N, when the measurement force decreases to below 1.5N, the maximum variation of the inner diameter size of an individual bearing ring is 0.4um, and the other bearing rings basically do not change, so that the bearing ring with the wall thickness of 4-5 mm is determined, and the maximum limit measurement force is not larger than 1.5N on the premise of ensuring the stability of the measurement result.
The bearing ring with the wall thickness of more than 5mm is tested by the method, the measuring force is gradually reduced to 0.5N from 2.5N, the measured value is basically unchanged, so that the measuring force of the bearing ring with the wall thickness of more than 5mm does not exceed the standard regulation of the principle and method GB/T307.2-2005 for measuring and checking the rolling bearing, and the maximum limit measuring force is not greater than 2N.
The working principle is as follows:
placing a well-adjusted bearing inner diameter measuring instrument 3 on a precise manual displacement platform device 2, placing the precise manual displacement platform device 2 on a bearing height measuring instrument 1 provided with a high-precision electronic tension and pressure gauge 4 to enable a sensing contact of the high-precision electronic tension and pressure gauge 4 to be aligned to a connecting piece of a measuring contact of the bearing inner diameter measuring instrument 3, enabling the sensing contact of the high-precision electronic tension and pressure gauge 4 and the connecting piece of the measuring contact of the bearing inner diameter measuring instrument 3 to be in a non-contact position, enabling a bearing ring 7 to be in a measuring position, then rotating a first movable micrometer 2-3 to enable the precise manual displacement platform device 2 and the bearing inner diameter measuring instrument 3 to horizontally move along a Y axis of the first movable platform 2-1 relative to the upper surface of the bearing height measuring instrument 1, and rotating a second movable micrometer 2-4 to enable the precise manual displacement platform device 2 and the bearing inner diameter measuring instrument 3 to horizontally move along the second movable platform 2 relative to the upper surface of the bearing height measuring instrument 1 2, when the sensing contact of the high-precision electronic pull pressure gauge 4 is just contacted with the measuring contact connecting piece of the bearing inner diameter measuring instrument 3, the high-precision electronic pull pressure gauge 4 displays a tiny measuring force, and the measuring force is regarded as an initial measuring force P0Controlling the pressure below 0.1N, removing the bearing ring 7, generating a rebound force at a measuring contact of the bearing inner diameter measuring instrument 3, and recording a measuring force P after the bearing ring 7 is removed in a stable state1At this time, the actual measurement force P of the bearing inner diameter measuring instrument 3 is P ═ P1－P0The required actual measuring force can be obtained by adjusting the measuring force knob of the bearing inner diameter measuring instrument 3 and using the calibration method of the measuring force.
The present invention has been described in terms of the preferred embodiments, but it is not limited thereto, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention will still fall within the technical scope of the present invention.
Claims (5)
1. The utility model provides a modular special bearing measuring force device which characterized in that: the device comprises a bearing height measuring instrument (1), a precise manual displacement platform device (2), a bearing inner diameter measuring instrument (3), a high-precision electronic tension and pressure gauge (4), a bearing height measuring instrument upright post (5) and a connecting device (6);
bearing height measuring apparatu (1) is placed on the workstation along the horizontal direction, accurate manual displacement platform device (2) detachable sets up the upper surface at bearing height measuring apparatu (1), the upper surface at accurate manual displacement platform device (2) is placed in bearing internal diameter measuring apparatu (3), bearing ring (7) detachable sets up on bearing internal diameter measuring apparatu (3), the upper surface and bearing height measuring apparatu stand (5) of bearing height measuring apparatu (1) one side are connected and both mutually perpendicular set up, bearing height measuring apparatu stand (5) are through connecting device (6) and the one end fixed connection of high accuracy electronic type pull pressure gauge (4), the sensing contact that the high accuracy electronic type pulled the pressure gauge (4) other end contacts with the internal diameter of bearing ring (7).
2. The combined special bearing force measuring device according to claim 1, wherein: the precise manual displacement platform device (2) comprises a first moving platform (2-1), a second moving platform (2-2), a first moving micrometer (2-3) and a second moving micrometer (2-4);
the first moving platform (2-1) is connected with the second moving platform (2-2) in a sliding mode, the first moving platform (2-1) is located above the second moving platform (2-2), the first moving micrometer (2-3) is fixedly arranged on the side face of one side of the first moving platform (2-1), the second moving micrometer (2-4) is fixedly arranged on the side face of one side of the second moving platform (2-2) adjacent to the first moving micrometer (2-3), the bearing inner diameter measuring instrument (3) is fixedly arranged on the upper surface of the first moving platform (2-1), the bearing inner diameter measuring instrument (3) of the first moving micrometer (2-3) is screwed to horizontally move along the Y axis of the first moving platform (2-1) relative to the upper surface of the bearing height measuring instrument (1), and the bearing inner diameter measuring instrument (3) of the screwing second movable micrometer (2-4) horizontally moves along the X axis of the second movable platform (2-2) relative to the upper surface of the bearing height measuring instrument (1).
3. The combined special bearing force measuring device according to claim 1, wherein: the bearing height measuring instrument upright post (5) comprises a vertical rod (5-1) and a connecting rod (5-2);
one end of the connecting rod (5-2) is sleeved on the vertical rod (5-1) and is perpendicular to the vertical rod, the other end of the connecting rod (5-2) is in threaded connection with the middle of the end face of one side of the connecting device (6), and the end face of the other side of the connecting device (6) is fixedly connected with one end of the high-precision electronic pull pressure gauge (4).
4. The combined special bearing force measuring device according to claim 3, wherein: the connecting rod (5-2) comprises a connecting sleeve (5-2-1), a connecting piece (5-2-2), a fixing piece (5-2-3) and a jacking nut (5-2-4);
the connecting sleeve (5-2-1) and the fixing piece (5-2-3) are fixedly connected through a connecting piece (5-2-2), the connecting sleeve (5-2-1) is sleeved on the middle upper portion of the vertical rod (5-1) through screwing and tightening nuts (5-2-4), and the fixing piece (5-2-3) is in threaded connection with the middle portion of the end face of one side of the connecting device (6).
5. The combined special bearing force measuring device according to claim 4, wherein: the connecting device (6) comprises a rectangular plate (6-1) and a W-shaped plate (6-2);
the rectangular plate (6-1) and the W-shaped plate (6-2) are vertically connected and are integrated, rectangular grooves (6-3) are respectively machined in the length direction of the rectangular plate (6-1) on the two sides of the end face of the rectangular plate (6-1), the end face of one side of the rectangular plate (6-1) is in threaded connection with the fixing piece (5-2-3), and the end face of the other side of the rectangular plate (6-1) is fixedly connected with one end of the high-precision electronic pull pressure gauge (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121831736.5U CN215931284U (en) | 2021-08-06 | 2021-08-06 | Combined special bearing force measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121831736.5U CN215931284U (en) | 2021-08-06 | 2021-08-06 | Combined special bearing force measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN215931284U true CN215931284U (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121831736.5U Active CN215931284U (en) | 2021-08-06 | 2021-08-06 | Combined special bearing force measuring device |
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|---|---|
| CN (1) | CN215931284U (en) |
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2021
- 2021-08-06 CN CN202121831736.5U patent/CN215931284U/en active Active
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