CN106940253A - Automobile hub bearing friction torque detection means - Google Patents
Automobile hub bearing friction torque detection means Download PDFInfo
- Publication number
- CN106940253A CN106940253A CN201710116311.8A CN201710116311A CN106940253A CN 106940253 A CN106940253 A CN 106940253A CN 201710116311 A CN201710116311 A CN 201710116311A CN 106940253 A CN106940253 A CN 106940253A
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- China
- Prior art keywords
- measurement
- rotary shaft
- torque
- detection means
- hub bearing
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- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 17
- 238000005259 measurement Methods 0.000 claims abstract description 88
- 230000006835 compression Effects 0.000 claims abstract description 3
- 238000007906 compression Methods 0.000 claims abstract description 3
- 230000000452 restraining effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
- G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a kind of automobile hub bearing friction torque detection means, including base, the base, which is provided with, to be used for positioning the measurement and positioning axle that hub-bearing unit outer ring makes outer ring not rotate in measurement, the measurement rotary shaft for being coaxially set and being rotated in measurement together with hub-bearing unit inner ring with measurement and positioning axle is provided with above the base, driving measurement rotary shaft is connected with above the measurement rotary shaft to push so that measuring the cylinder of rotation shaft compression inner ring, the measurement rotary shaft is connected with sleeve, the sleeve connection moment conductive plate, the frictional resistance that measurement rotary shaft drives inner ring rotation and is subject to passes to torque conductive plate by sleeve, the torque of the torque conductive plate is measured by torque sensor.Metering system of the present invention is simple, and the degree of accuracy of measurement data is higher.
Description
Technical field
The present invention relates to the detection skill of automobile hub bearing, more particularly to automobile hub bearing friction torque
Art.
Background technology
Automobile hub bearing is important carrying and the drive disk assembly of automobile, and moment of friction is to influence its life-span, performance
Key factor.Moment of friction Producing reason mainly divides internal cause and external cause：External cause mainly has the load and air drag of outside
Deng；Internal cause then has that pretightning force bears the interference fit of clearance, elastic properties of materials is delayed, the differential sliding that is in rolling contact face, lubricant
Viscosity, rolling element revolving sliding, the simple sliding of contact site etc..Measurement on moment of friction generally has three kinds of methods：Directly
Connection, force balancing method and energy conversion method.The principle of the direct method of measurement is to use to carry that the physical parameter of moment of friction can be weighed
The rotation of elastomer drive shaft when, due to the presence of friction moment of rotary shaft of rotary, the physical parameter of weighing moment of friction can be caused
Change, these physical parameters can be stress, strain and deformation etc., it is caused during these physical parameter transmitting torques by measuring
Change with regard to moment of friction can be measured；Force balancing method determines that main shaft is acted on indirectly by measuring the trimming moment of reaction force generation
Power size；Energy conversion rule is consumed by measuring the other forms such as the heat energy produced due to bearing frictional torque
Energy, so as to measure bearing frictional torque indirectly.But energy conversion method is not appropriate for for the measurement of moment of friction, because
Moment of friction is typically more small, is difficult measurement, and the energy (mainly heat energy) of consumption is also inconvenient to measure, caused mistake
Difference can be than larger；Common direct method debugs complicated with equilibrant force moments method in actually measurement, is difficult to measure frictional force and measurement
Data accuracy is not high.
The content of the invention
The technical problems to be solved by the invention are just to provide a kind of automobile hub bearing friction torque detection means,
Convenient detection, and the accuracy of measurement data is high.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：Automobile hub bearing friction torque is examined
Device, including base are surveyed, the base is provided with makes outer ring not rotated in measurement for positioning hub-bearing unit outer ring
Measurement and positioning axle, be provided with above the base is coaxially set with measurement and positioning axle and in measurement with hub-bearing unit
Enclosing to be connected with above the measurement rotary shaft rotated together, the measurement rotary shaft drives measurement rotary shaft to push so that measuring
The cylinder of shaft compression inner ring is rotated, the measurement rotary shaft is connected with sleeve, the sleeve connection moment conductive plate, measurement rotation
The frictional resistance that rotating shaft drives inner ring rotation and is subject to passes to torque conductive plate, the torque of the torque conductive plate by sleeve
Measured by torque sensor.
It is preferred that, the cylinder is provided with the end cap driven by piston, and the end cap has been bolted piston, institute
Piston is stated to be connected with measurement rotary shaft.
It is preferred that, the bottom of the piston is provided with movable mounting groove, above and below the upper end of the measurement rotary shaft is provided with
It is movably installed in the upper flange in movable mounting groove.
It is preferred that, it is provided between the sleeve and piston and keeps measurement rotary shaft and inner ring after measurement rotary shaft is pushed
It is close to, and rises the spring for resetting measurement rotary shaft in measurement rotary shaft.
It is preferred that, the outer circumferential side of the measurement and positioning axle is provided with baffle plate, and the torque sensor is installed on sensor branch
On frame, the sensor stand is fixed on baffle plate.
It is preferred that, it is vertically-mounted on the torque conductive plate to there is the restraining moment when compressing inner ring under measuring axial rotary to pass
The positioning limitation bar of guide plate position.
It is preferred that, the positioning limitation bar is the stepped stem that upper diameter is big and lower diameter is small.
The technical solution adopted by the present invention, the outer ring of automobile hub bearing to be measured is fixed by measurement and positioning axle, gas
Cylinder, which is pushed, makes measurement rotary shaft produce thrust to inner ring, and measurement rotary shaft starts rotation simultaneously with automobile hub bearing to be measured
Turn, torque is conducted by torque conductive plate, and torque is measured by torque sensor, metering system is simple, and measurement data
The degree of accuracy it is higher.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and detailed description：
Fig. 1 is the side structure schematic view of automobile hub bearing friction torque detection means；
Fig. 2 is the overlooking the structure diagram of automobile hub bearing friction torque detection means；
Fig. 3 is Fig. 2 A-A cross-sectional views.
Embodiment
As shown in Figures 1 to 3, set on automobile hub bearing friction torque detection means, including base 1, the base 1
Have for locating wheel hub bearing unit outer ring, so that the measurement and positioning axle 11 that outer ring will not rotate during measurement, the top of base 1
Provided with the measurement rotary shaft 2 being coaxially set with measurement and positioning axle, the top of the measurement rotary shaft 2 is connected with driving measurement rotation
Rotating shaft 2 is pushed so that measuring the cylinder 3 that rotary shaft 2 compresses hub-bearing unit inner ring, and the measurement rotary shaft 2 is in measurement
Rotated together with automobile hub bearing, the measurement rotary shaft 2, which is connected with when automobile hub bearing is rotated, to be produced
Power be converted into the torque conductive plate 21 of torque, measurement rotary shaft 2 is connected with sleeve 23, and torque conductive plate 21 connects with sleeve 23
Connect, the torque of torque conductive plate 21 is measured by torque sensor 15.
Wherein, cylinder 3 is provided with the end cap 31 driven by piston, and the end cap 31 has been bolted piston 32,
Piston 32 is connected with measurement rotary shaft 2.Specifically, the bottom of the piston is provided with movable mounting groove 321, it is described to survey
The upper end of amount rotary shaft is provided with the upper flange 202 being movably installed in movable mounting groove, and upper flange 202 can be along movable mounting groove
321 slide up and down.Between the sleeve 23 and piston 32 be provided with measurement rotary shaft 2 push after keep measurement rotary shaft 2 with
Hub-bearing unit inner ring is close to, and rises the spring 24 for resetting measurement rotary shaft 2 in measurement rotary shaft 2.When cylinder 3 is pushed,
Piston 32 is pushed by the pressure from cylinder 3, and spring 24 is compressed, and the headspace in movable mounting groove 321 disappears,
Measurement rotary shaft 2 is depressed into hub bearing upper surface, and 24 pairs of lower sections of measurement rotary shaft 2 of spring are applied with a power, it is ensured that measurement rotation
Hub bearing is close in rotating shaft 2, it is to avoid measurement produces vibrations, so as to form error.After being measured, measurement rotary shaft 2 rises,
Spring 24 is acted on, and measurement rotary shaft 2 is resetted.
In addition, the lower end of the measurement rotary shaft is provided with annular recess 201, in favor of compressing hub bearing upper surface.Institute
The outer circumferential side for stating measurement and positioning axle 1 is provided with baffle plate 12, and the torque sensor 15 is installed on sensor stand 14, described to pass
Sensor bracket 14 is fixed on support column 13.
Further, on the torque conductive plate 21 it is vertically-mounted have measurement the downward contact roller hub axle of rotary shaft 2 hold list
The positioning limitation bar 22 of the position of restraining moment conductive plate 21 when first.The positioning limitation bar 22 is that upper diameter is big, and bottom is straight
The small stepped stem in footpath.
Directly measured because moment of torsion is extremely difficult, so, pass through the quilt of torque conductive plate 21 using by the power that measurement rotary shaft 2 is reacted
Torque sensor 15 is recognized, finally calculates moment of torsion.In measurement process, measurement rotary shaft 2 is with hub-bearing unit to be measured
Rotate simultaneously, the frictional resistance being subject to passes to torque conductive plate 21 by sleeve 23, occur torque conductive plate 21 slight
Skew, power is transmitted on torque sensor 15.
The lower diameter of positioning limitation bar 22 is more much smaller than upper diameter, when minor shifts occur for torque conductive plate 21,
Positioning limitation bar minor diameter would not have influence on the measurement of moment of torsion.
Automobile hub bearing friction torque detection method, specific measurement process is as follows：
(1) hub-bearing unit to be measured that conveyer belt is sent is put on measurement and positioning axle by manipulator；
(2) cylinder is started working, and measurement rotary shaft is pushed, and measurement rotary shaft is treated measuring wheel hub bearing unit and is produced one
Fixed thrust；
(3) measurement rotary shaft starts rotation simultaneously with hub-bearing unit to be measured；
(4) frictional force that hub-bearing unit is produced is delivered to torque conductive plate by measuring rotary shaft, conducts torque
Slight skew occurs for plate, and power is transmitted on torque sensor, moment of friction is drawn；
(5) it is measured, measurement rotary shaft rises, spring effect, measurement rotary shaft is resetted.
Claims (7)
1. automobile hub bearing friction torque detection means, it is characterised in that：Including base, the base, which is provided with, to be used for
Positioning hub-bearing unit outer ring makes to be provided with and measurement above the measurement and positioning axle that outer ring will not rotate in measurement, the base
The measurement rotary shaft that locating shaft is coaxially set and rotated in measurement together with hub-bearing unit inner ring, the measurement rotation
Driving measurement rotary shaft is connected with above axle to push so that measuring the cylinder of rotation shaft compression inner ring, the measurement rotary shaft
Sleeve, the sleeve connection moment conductive plate are connected with, the frictional resistance that measurement rotary shaft drives inner ring rotation and is subject to leads to
Cross sleeve and pass to torque conductive plate, the torque of the torque conductive plate is measured by torque sensor.
2. automobile hub bearing friction torque detection means according to claim 1, it is characterised in that：The cylinder
Provided with the end cap driven by piston, the end cap has been bolted piston, the piston and measurement rotary shaft
Connection.
3. automobile hub bearing friction torque detection means according to claim 2, it is characterised in that：The piston
The bottom of shell is provided with movable mounting groove, and the upper end of the measurement rotary shaft is installed in movable mounting groove provided with up and down
Upper flange.
4. automobile hub bearing friction torque detection means according to claim 3, it is characterised in that：The sleeve
It is provided between piston and keeps measurement rotary shaft to be close to inner ring after measurement rotary shaft is pushed, and is risen in measurement rotary shaft
The spring for resetting measurement rotary shaft.
5. automobile hub bearing friction torque detection means according to claim 1, it is characterised in that：The measurement
The outer circumferential side of locating shaft is provided with baffle plate, and the torque sensor is installed on sensor stand, and the sensor stand is fixed
In on baffle plate.
6. automobile hub bearing friction torque detection means according to claim 1, it is characterised in that：The torque
The vertically-mounted positioning for having the restraining moment conduction Board position when compressing inner ring under measuring axial rotary limits bar on conductive plate.
7. automobile hub bearing friction torque detection means according to claim 6, it is characterised in that：The positioning
It is the stepped stem that upper diameter is big and lower diameter is small to limit bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710116311.8A CN106940253A (en) | 2017-03-01 | 2017-03-01 | Automobile hub bearing friction torque detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710116311.8A CN106940253A (en) | 2017-03-01 | 2017-03-01 | Automobile hub bearing friction torque detection means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106940253A true CN106940253A (en) | 2017-07-11 |
Family
ID=59469294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710116311.8A Pending CN106940253A (en) | 2017-03-01 | 2017-03-01 | Automobile hub bearing friction torque detection means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106940253A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211453A (en) * | 2018-09-28 | 2019-01-15 | 无锡市航鹄精密机械有限公司 | Bearing frictional torque test fixture |
| CN112798249A (en) * | 2020-12-30 | 2021-05-14 | 东风汽车集团有限公司 | Device and method for detecting friction performance of EPB caliper piston and friction plate |
| CN117007316A (en) * | 2023-09-27 | 2023-11-07 | 万向钱潮股份公司 | Hub bearing unit detection method and device |
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|---|---|---|---|---|
| CN87106948A (en) * | 1987-10-20 | 1988-04-13 | 甘肃工业大学 | Floating autocompact friction gearing |
| CN101034025A (en) * | 2006-10-24 | 2007-09-12 | 杭州轴承试验研究中心有限公司 | Automobile hub bearing friction torque tester and testing method thereof |
| CN201637520U (en) * | 2010-04-08 | 2010-11-17 | 陈苏琦 | Motor load torque measuring mechanism |
| CN103398809A (en) * | 2013-08-01 | 2013-11-20 | 杭州轴承试验研究中心有限公司 | Friction torque tester of bearing of automobile hub |
| CN203323934U (en) * | 2013-06-29 | 2013-12-04 | 广州东荣轴承设备有限公司 | High precision bearing torque checking device |
| CN103499407A (en) * | 2013-09-29 | 2014-01-08 | 山河智能装备股份有限公司 | Torque and revolving speed detection device |
| CN204828361U (en) * | 2015-07-13 | 2015-12-02 | 湖北奥德传动科技有限公司 | Piston cylinder fixed atmospheric pressure multi -disc friction clutch |
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2017
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| CN87106948A (en) * | 1987-10-20 | 1988-04-13 | 甘肃工业大学 | Floating autocompact friction gearing |
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| CN201637520U (en) * | 2010-04-08 | 2010-11-17 | 陈苏琦 | Motor load torque measuring mechanism |
| CN203323934U (en) * | 2013-06-29 | 2013-12-04 | 广州东荣轴承设备有限公司 | High precision bearing torque checking device |
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| CN103499407A (en) * | 2013-09-29 | 2014-01-08 | 山河智能装备股份有限公司 | Torque and revolving speed detection device |
| CN204828361U (en) * | 2015-07-13 | 2015-12-02 | 湖北奥德传动科技有限公司 | Piston cylinder fixed atmospheric pressure multi -disc friction clutch |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211453A (en) * | 2018-09-28 | 2019-01-15 | 无锡市航鹄精密机械有限公司 | Bearing frictional torque test fixture |
| CN109211453B (en) * | 2018-09-28 | 2023-11-24 | 无锡市航鹄精密机械有限公司 | Bearing friction moment test fixture |
| CN112798249A (en) * | 2020-12-30 | 2021-05-14 | 东风汽车集团有限公司 | Device and method for detecting friction performance of EPB caliper piston and friction plate |
| CN117007316A (en) * | 2023-09-27 | 2023-11-07 | 万向钱潮股份公司 | Hub bearing unit detection method and device |
| CN117007316B (en) * | 2023-09-27 | 2023-12-26 | 万向钱潮股份公司 | Hub bearing unit detection method and device |
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