CN112648907A - Positive internal clearance measuring device based on displacement-torque measurement - Google Patents
Positive internal clearance measuring device based on displacement-torque measurement Download PDFInfo
- Publication number
- CN112648907A CN112648907A CN202011538623.6A CN202011538623A CN112648907A CN 112648907 A CN112648907 A CN 112648907A CN 202011538623 A CN202011538623 A CN 202011538623A CN 112648907 A CN112648907 A CN 112648907A
- Authority
- CN
- China
- Prior art keywords
- bearing
- hole
- adjusting sleeve
- displacement
- matched
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a positive clearance measuring device based on displacement-torque measurement, which mainly comprises a base and the like, wherein a threaded rotary ejector rod is installed in a threaded hole in the center of the base in a matching manner, a bottom pressure head is installed at the top end of the threaded rotary ejector rod in a matching manner, an adjusting sleeve is installed above the base and matched with a large counter bore of the base, a bearing outer ring is installed on the adjusting sleeve, a gasket is placed on the adjusting sleeve, an annular pressing block is placed on the bearing outer ring and the gasket, a through hole is formed in the annular pressing block, the width of the through hole is matched with the diameter of the through hole in the adjusting sleeve, the annular pressing block is screwed on the adjusting sleeve through the positioning of a bolt and the through hole, a pressing mass block. The invention creatively uses a method combining torque measurement and displacement measurement, can be used for distinguishing the positive and negative clearance states of the bearing, and can directly measure the value of the positive clearance; the mechanism is simple, compact in structure and easy to operate.
Description
Technical Field
The invention relates to the field of hub bearings, in particular to a positive clearance measuring device based on displacement-torque measurement.
Background
A hub bearing is an automotive component that carries weight and provides precise guidance for the rotation of the hub. The play of the hub bearing is usually measured with special equipment. The prior art device of patent application No. 201420743371.4 is structured as follows: the upper and lower supports are respectively fixed on the upper and lower sides of the workbench, the longitudinal lifting driving device can drive the outer ring positioning ring to descend the outer ring of the bearing, the upper pressurizing cylinder structure is fixedly connected with the outer ring positioning ring, the lower end of a piston rod of the upper pressurizing cylinder structure is fixedly connected with the upper inner ring pressure plate, the upper inner ring pressure plate can compress the upper end surface of the inner ring of the bearing, the upper end of a piston rod of the lower pressurizing cylinder structure is fixedly connected with the lower inner ring pressure plate, the lower inner ring pressure plate can compress the lower end surface of the inner ring of the bearing, and the measuring pen can continuously take values of the height of the. The prior art scheme mainly has the following defects: the structure is complex, and the occupied space of the whole frame is overlarge due to the fact that too many motion executing mechanisms need to be fixedly installed; and it cannot be judged whether the bearing is in the positive play or negative play state.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a positive play measuring device based on displacement-torque measurement.
The purpose of the invention is achieved by the following technical scheme: the positive clearance measuring device based on displacement-torque measurement mainly comprises a displacement sensor fixing support, a displacement sensor, a press-mounting mass block, a bearing flange, a bearing outer ring, a bolt, an annular pressing block, a gasket, an adjusting sleeve, a bearing inner ring, a bottom pressing head, a thread rotating ejector rod, a base and a torque wrench, wherein the thread rotating ejector rod is installed in a threaded hole in the center of the base in a matching manner, the bottom pressing head is installed at the top end of the thread rotating ejector rod in a matching manner, the adjusting sleeve is installed above the base and matched with a large counter bore of the base, the bearing flange is installed in a bearing formed by the bearing inner ring and the bearing outer ring, the bearing flange, the bearing inner ring and the bearing outer ring are hub bearing units, the bearing outer ring is installed on the adjusting sleeve, an installation surface of the bearing outer ring is matched with a central, the annular briquetting is placed on bearing inner race and gasket, be equipped with the through-hole on the annular briquetting, the width of through-hole and the through-hole diameter phase-match on the adjusting collar, the annular briquetting runs through the location of bolt and through-hole and screws up on the adjusting collar, the pressure equipment quality piece is placed on the bearing ring flange, displacement sensor installs on the displacement sensor fixed bolster, the rigidity of displacement sensor fixed bolster, the displacement sensor axis coincides with the central axis of wheel hub bearing unit, the measuring head of displacement sensor bottom is relative with the circular shallow slot at pressure equipment quality piece upper portion center, and keep in contact throughout and measure, the rotatory ejector pin of screw thread is supporting to be equipped with torque wrench.
The tail end of the thread rotating ejector rod is a hemispherical protrusion and is matched with a hemispherical groove at the lower end of the bottom pressure head, the radius of the hemispherical groove of the bottom pressure head is larger than that of the hemispherical protrusion of the thread rotating ejector rod, and matching centering is formed between the thread rotating ejector rod and the hemispherical protrusion.
The through hole on the annular pressing block is in a long strip shape.
And a circular groove is dug at the bottom of the bearing flange and matched with the flange plate mounting surface of the press-mounting mass block.
The invention has the beneficial effects that: the invention creatively uses a method combining torque measurement and displacement measurement, can be used for distinguishing the positive and negative clearance states of a bearing aiming at a third-generation hub bearing unit, can directly measure the numerical value of the positive clearance, can be used for detecting the finished product after processing and manufacturing, and can evaluate whether the clearance of the product is in the design range, thereby being beneficial to the control of the product quality and the analysis and research after the product is failed; the mechanism is simple, can be manually installed and disassembled, has compact structure, is easy to operate, occupies small space and is suitable for various occasions.
Drawings
Fig. 1 is a schematic structural diagram of the prior art.
Fig. 2 is a schematic structural diagram of the present invention.
Description of reference numerals: the device comprises a displacement sensor fixing support 1, a displacement sensor 2, a press-fitting mass block 3, a bearing flange 4, a bearing outer ring 5, a bolt 6, an annular pressing block 7, a gasket 8, an adjusting sleeve 9, a bearing inner ring 10, a bottom pressing head 11, a threaded rotating ejector rod 12, a base 13 and a torque wrench 14.
Detailed Description
The invention will be described in detail below with reference to the following drawings:
example (b): as shown in the attached drawing, the positive play measuring device based on displacement-torque measurement mainly comprises a displacement sensor fixing support 1, a displacement sensor 2, a press-fitting mass block 3, a bearing flange 4, a bearing outer ring 5, a bolt 6, an annular pressing block 7, a gasket 8, an adjusting sleeve 9, a bearing inner ring 10, a bottom pressure head 11, a thread rotating ejector rod 12, a base 13 and a torque wrench 14, wherein the thread rotating ejector rod 12 is installed in a threaded hole in the center of the base 13 in a matched mode, the thread rotating ejector rod 12 moves up and down through rotation, the bottom pressure head 11 is installed at the top end of the thread rotating ejector rod 12 in a matched mode, the tail end of the thread rotating ejector rod 12 is a hemispherical bulge and matched with a hemispherical groove at the lower end of the bottom pressure head 11, the radius of the hemispherical groove of the bottom pressure head 11. The adjusting sleeve 9 is arranged above the base 13 and matched with a large counter bore of the base 13, the adjusting sleeve 9 is provided with four through holes, the size and the position of the through holes correspond to four threaded holes on the base 13, bolt connection can be realized, the bearing flange 4 is arranged in a bearing formed by a bearing inner ring 10 and a bearing outer ring 5, the bearing flange 4, the bearing inner ring 10 and the bearing outer ring 5 are hub bearing units, the bearing outer ring 5 is arranged on the adjusting sleeve 9, the mounting surface of the bearing outer ring 5 is matched with a central round hole of the adjusting sleeve 9 to realize the mounting and the positioning of the hub bearing units, the step at the top end of the bottom pressure head 11 is matched with an inner hole of the bearing flange 4, the gasket 8 is arranged on the adjusting sleeve 9, the annular pressing block 7 is arranged on the bearing outer ring 5 and the gasket 8, the annular pressing block 7 is provided with the through holes, the width of the through holes is matched with the, the through hole on the annular pressing block 7 is in a long strip shape, so that the left and right positions of the annular pressing block 7 can be adjusted to be matched with the size of the hub bearing unit. The bearing outer ring 5 is fixed on the adjusting sleeve 9 and does not move, the press-fitting mass block 3 is placed on the bearing flange plate 4, a circular groove is dug at the bottom of the bearing flange plate 4, and the circular groove is matched with the flange plate mounting surface of the press-fitting mass block 3. The displacement sensor 2 is installed on the displacement sensor fixing support 1, the position of the displacement sensor fixing support 1 is fixed, the axis of the displacement sensor 2 is overlapped with the central axis of the hub bearing unit, a measuring head at the bottom of the displacement sensor 2 is opposite to a round shallow groove at the center of the upper part of the press-mounting mass block 3 and is always kept in contact for measurement, and the threaded rotary ejector rod 12 is matched with the torque wrench 14.
The working process of the invention is as follows:
after the assembly of the invention is finished, the display values of the displacement sensor 2 and the torque wrench 14 are cleared, the torque wrench 14 is used for twisting threads to rotate the ejector rod 12, and thus the bottom pressure head 11 is driven to realize vertical and upward displacement motion. The bottom pressure head 11 continuously moves upwards until the step part above the bottom pressure head is contacted with the bearing inner ring 10, and the bearing inner ring 10 and the bearing flange 4 are combined together to form an integral upward movement due to the matching between the bearing inner ring 10 and the bearing flange 4, so that the press-mounting mass block 3 pressed on the bearing flange 4 also realizes the same displacement, and the displacement is collected and recorded by the displacement sensor 2 in real time. In the whole process of test measurement, the torque wrench 14 also displays and records the torque value required by twisting the threaded rotating ejector rod 12 in real time, when the rotating torque reaches a certain value, the twisting is stopped, and the value displayed on the displacement sensor 2 is the positive clearance value of the hub bearing unit.
The test results of the invention are analyzed and evaluated:
the present invention can be used to distinguish the positive and negative play states of the play of the hub bearing, if the hub bearing unit is in the positive play state, that is, there is a gap between the bearing inner race formed by the bearing flange 4 and the bearing inner ring 10 and the outer race and the rolling elements of the bearing outer ring 5, in this case, when the bottom ram 11 contacts the bearing inner ring 10 to start to generate displacement and is detected and recorded by the displacement sensor 2, the value displayed on the torque wrench 14 is very small and remains unchanged in a certain displacement range. If the hub bearing unit is in a negative play state, that is, there is a squeeze between the bearing inner raceway formed by the bearing flange 4 and the bearing inner ring 10 and the outer raceway of the bearing outer ring 5, the rolling elements, in this case, when the bottom ram 11 comes into contact with the bearing inner ring 10 to start generating a displacement and is detected and recorded by the displacement sensor 2, the value displayed on the torque wrench 14 is large and increases with the increase of the displacement.
Example 2: on the basis of embodiment 1, the manual measurement process is changed into an automatic measurement mode, the torque wrench 14 is replaced by a rotating device with a torque sensor, such as a motor, a pneumatic motor, a hydraulic motor and the like, so that the automation of the measurement process is realized, meanwhile, the measured data result can be automatically transmitted to a processor, the displacement-torque data is analyzed and processed, and according to the processed result, the clearance value of the positive clearance bearing can be obtained, and the clearance value of the negative clearance bearing can also be obtained by indirect calculation according to a formula and standard sample piece data.
It should be understood that equivalent substitutions and changes to the technical solution and the inventive concept of the present invention should be made by those skilled in the art to the protection scope of the appended claims.
Claims (4)
1. A positive play measuring device based on displacement-torque measurement is characterized in that: mainly comprises a displacement sensor fixing support (1), a displacement sensor (2), a press-mounting mass block (3), a bearing flange (4), a bearing outer ring (5), a bolt (6), an annular pressing block (7), a gasket (8), an adjusting sleeve (9), a bearing inner ring (10), a bottom pressing head (11), a threaded rotary ejector rod (12), a base (13) and a torque wrench (14), wherein the threaded rotary ejector rod (12) is installed in a threaded hole in the center of the base (13) in a matching way, the bottom pressing head (11) is installed at the top end of the threaded rotary ejector rod (12) in a matching way, the adjusting sleeve (9) is installed above the base (13) and is matched with a large counter bore of the base (13), the bearing flange (4) is installed in a bearing formed by the bearing inner ring (10) and the bearing outer ring (5), and the bearing flange (4), the bearing inner ring (10), the bearing outer ring (5) is arranged on the adjusting sleeve (9), the mounting surface of the bearing outer ring (5) is matched with a central round hole of the adjusting sleeve (9), the top end step of the bottom pressure head (11) is matched with an inner hole of the bearing flange (4), the gasket (8) is arranged on the adjusting sleeve (9), the annular pressing block (7) is arranged on the bearing outer ring (5) and the gasket (8), a through hole is arranged on the annular pressing block (7), the width of the through hole is matched with the diameter of the through hole on the adjusting sleeve (9), the annular pressing block (7) is screwed on the adjusting sleeve (9) through the positioning of the bolt (6) and the through hole, the pressing mass block (3) is arranged on the bearing flange (4), the displacement sensor (2) is arranged on the displacement sensor fixing support (1), the position of the displacement sensor fixing support (1) is fixed, the axis of the displacement sensor (2) is coincided with, the measuring head at the bottom of the displacement sensor (2) is opposite to the round shallow groove at the center of the upper part of the press-mounting mass block (3) and always kept in contact for measurement, and the threaded rotating ejector rod (12) is matched with a torque wrench (14).
2. The positive backlash measuring device based on the displacement-torque measurement according to claim 1, wherein: the tail end of the threaded rotary ejector rod (12) is hemispherical and convex, and is matched with a hemispherical groove at the lower end of the bottom pressure head (11), the radius of the hemispherical groove of the bottom pressure head (11) is larger than that of the hemispherical convex of the threaded rotary ejector rod (12), and matching centering is formed between the two.
3. The positive backlash measuring device based on the displacement-torque measurement according to claim 1, wherein: the through hole on the annular pressing block (7) is in a long strip shape.
4. The positive backlash measuring device based on the displacement-torque measurement according to claim 1, wherein: and a circular groove is dug at the bottom of the bearing flange (4), and the circular groove is matched with the flange plate mounting surface of the press-mounting mass block (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011538623.6A CN112648907A (en) | 2020-12-23 | 2020-12-23 | Positive internal clearance measuring device based on displacement-torque measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011538623.6A CN112648907A (en) | 2020-12-23 | 2020-12-23 | Positive internal clearance measuring device based on displacement-torque measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112648907A true CN112648907A (en) | 2021-04-13 |
Family
ID=75359824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011538623.6A Pending CN112648907A (en) | 2020-12-23 | 2020-12-23 | Positive internal clearance measuring device based on displacement-torque measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112648907A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483713A (en) * | 2021-06-30 | 2021-10-08 | 人本股份有限公司 | Bearing tool for detecting axial clearance of rolling bearing |
| CN114061983A (en) * | 2021-11-19 | 2022-02-18 | 山东蓬翔汽车有限公司 | Device for detecting axial force of hub and bearing displacement in real time by applying torque |
-
2020
- 2020-12-23 CN CN202011538623.6A patent/CN112648907A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483713A (en) * | 2021-06-30 | 2021-10-08 | 人本股份有限公司 | Bearing tool for detecting axial clearance of rolling bearing |
| CN114061983A (en) * | 2021-11-19 | 2022-02-18 | 山东蓬翔汽车有限公司 | Device for detecting axial force of hub and bearing displacement in real time by applying torque |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112648907A (en) | Positive internal clearance measuring device based on displacement-torque measurement | |
| CN112762799A (en) | Gear box bearing clearance detection and adjustment integrated tool and detection and adjustment method thereof | |
| CN215639365U (en) | Axial clearance detection device for double-row tapered roller bearing | |
| CN110695142A (en) | Straightening device for slender shaft parts without center holes | |
| CN205002961U (en) | Detection device is held to axis of cone | |
| CN103162596A (en) | Device and method for detecting axial clearance of bearing | |
| CN103363943A (en) | Instrument for measuring axial play of automobile hub bearing | |
| CN105223020A (en) | A kind of cone bearing pick-up unit | |
| CN214702070U (en) | Positive internal clearance measuring device based on displacement-torque measurement | |
| CN210730604U (en) | Straightening device for slender shaft parts without center holes | |
| CN116379986A (en) | Device and method for rapidly detecting position degree of pin boss in piston | |
| CN202470987U (en) | Device for detecting perpendicularity between inner step end face and large hole axis of workpiece with step hole | |
| CN114485777B (en) | Detection equipment and detection method for runout and rotation moment of outer ring of bearing | |
| CN215767659U (en) | Temperature rise and vibration quick detection device for angular contact bearing for machine tool spindle | |
| CN212409585U (en) | Adjustable measuring head for axial clearance detector | |
| CN211347732U (en) | Full-automatic upset forging testing machine | |
| CN210665365U (en) | Small four-ball type friction wear test mechanism | |
| CN210014915U (en) | Test device for detecting service life of bearing | |
| CN210360895U (en) | Workpiece thickness detection device | |
| CN110207986A (en) | A kind of experimental rig detecting bearing life | |
| CN109211453B (en) | Bearing friction moment test fixture | |
| CN214224053U (en) | Dynamic measuring equipment for disc parts | |
| CN214393305U (en) | Positioning mechanism of disc parts | |
| CN112378661B (en) | Cylinder block formula self-aligning roller bearing positive and negative pressure loading device | |
| CN214224052U (en) | Diameter measuring mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |