CN108918000A - A kind of micro-bearing friction torgue measuring device - Google Patents
A kind of micro-bearing friction torgue measuring device Download PDFInfo
- Publication number
- CN108918000A CN108918000A CN201810312375.XA CN201810312375A CN108918000A CN 108918000 A CN108918000 A CN 108918000A CN 201810312375 A CN201810312375 A CN 201810312375A CN 108918000 A CN108918000 A CN 108918000A
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- China
- Prior art keywords
- bearing
- ring
- application rod
- force application
- micro
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0009—Force sensors associated with a bearing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
-
- 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
Abstract
The present invention relates to technical field of measuring equipment, specifically a kind of miniature bearing measuring device, including power mechanism, the output shaft of power mechanism is connect with the inner ring of bearing to be measured, the outer ring of bearing to be measured is connect with loaded ring, and loading mechanism is provided on loaded ring, and loaded ring side is provided with force measuring machine, force measuring machine includes the force application rod that left end is connect with loaded ring side, and force application rod right end is connect with sensor.Loading section of the present invention has self-regulated heart function, can be good at guaranteeing purely axially loaded, will not generate the tilting moment relative to axis；Sensor position increases the homing device of electromagnet, enables force snesor automatic zero set, solve the problems, such as sensor due to Excessive sensitivity, range is small and can not independently return to zero or manually return to zero excessively difficult；Installation and replacement easily and fast, need to only dismantle loading blocks, replacement does not interfere with the test of test bearing.
Description
Technical field
The present invention relates to technical field of measuring equipment, specifically a kind of miniature bearing measuring device.
Background technique
Inertial navigation system be using gyro and accelerometer as the navigational parameter resolving system of Sensitive Apparatus, the system according to
Navigational coordinate system is established in the output of gyro, exports speed and position of the carrier in navigational coordinate system at resolving according to accelerometer
It sets.Its advantage is that：Due to not depending on any external information, also not to external radiation energy, therefore independence, concealment and anti-interference
Performance is good；Aerial, earth surface or even underwater can be temporally worked in round-the-clock, entirely；Can provide position, speed, course and
The data such as attitude angle, information continuity is good and noise is low；Data updating rate height, short-term accuracy and stability are good.
Inertial navigation system is generally used for modern various aircraft, navigation naval vessel and vehicle etc. mechanically, its property
Fine or not it can directly affect the accuracy for delivering location navigation.Inertial navigation bearing（Inertial navigation bearing）It is to be risen in inertial navigation system
The critical piece of support and turning effort, accuracy, sensitivity and the flexibility of operating determine that inertial navigation system is whole
The performance of body performance.Generally it is maximum to self performance influence factor be exactly inertial navigation bearing itself moment of friction, therefore, to used
The test and research of guide bearing moment of friction performance are most important.Inertial navigation bearing belongs to ultraprecise ball bearing and miniature bearing model
It encloses, retainer is fabricated using porous material, and lubricating oil is stored in porous, and inertial navigation bearing relies in the process of running
Lubricating oil in porous material lubricates self.About the research of bearing frictional torque characteristic, have both at home and abroad very much, but it is most of
All be the theory analysis carried out, relevant experimental study is also most elastohydrodynamic lubrication bearing based on stock size, research at
Fruit is not particularly suited for inertial navigation bearing.In recent years, the research for the frictional behavior for thering is scholar to start to spread out to inertial navigation bearing, but it is related
Study actually rare, the still effective guidance of shortage and the test support on related engineer application.
Traditional bearing experimental facilities, as patent No. CN201520917117.6 is proposed《Bearing frictional torque measures work
Dress》, bearing to be measured is arranged between top tooling and lower part tooling, top tooling connects sensor, lower part tooling connection electricity
Machine, with the moment of friction of sensor measurement bearing, but this tooling, the bearing of intermediate diameter can only be measured, in the patent
Write that " it is for measuring external diametrical extent in the bearing of φ 100mm ~ φ 240mm." it is unable to measure this miniature bearing of inertia bearing
Friction moment, need to design a kind of measuring device for inertial navigation bearing characteristics thus.It is required that easy for installation, good to disposition,
Components are easily replaced, and Sensor section zeroing is i.e. convenient and quick, has self-regulated heart function, test data reliable and stable.
Summary of the invention
The friction moment that inertia bearing this miniature bearing can not be tested out to solve existing bearing test machine is asked
Topic, the present invention provide it is a kind of for inertial navigation bearing measurement of friction torque device, it is easy for installation, to disposition, good, components are easily replaced,
Sensor section zeroing is i.e. convenient and quick, has self-regulated heart function, test data reliable and stable.
To achieve the goals above, the concrete scheme that the present invention uses for：A kind of micro-bearing friction torgue measuring device,
Including power mechanism, the output shaft of power mechanism is connect with the inner ring of bearing to be measured, and the outer ring of bearing to be measured is connect with loaded ring,
Loading mechanism is provided on loaded ring, loaded ring side is provided with force measuring machine, and force measuring machine includes left end and loaded ring side
The force application rod of connection, force application rod right end are connect with sensor.
Further, force application rod right end is hollow ring structure, and cavity ring inner sleeve has inductive head, and inductive head and sensor connect
It connects.
Further, force application rod right end is U-shaped hollow ring structure, and being provided with below sensor can make sensor or so sliding
Dynamic sliding rail.
Further, force measuring machine further includes the homing device for making force application rod return to initial position.
Further, homing device includes the column being arranged on the right side of sensor, is provided with electricity at face force application rod on column
Magnet, force application rod right end are made or are sprayed with magnetisable coating using magnetic material, and force application rod returns to initially when electromagnet being made to be powered
Position.
Further, loading mechanism includes the loading blocks connecting with loaded ring, is provided in loading blocks and applies to loading blocks
The load column of axial force loads column and is connect by load bearings with load shell, and load column and load bearings clearance fit make to add
Carrying column can be axially moveable.
Further, loading blocks upper surface is equipped with conical bore, and load column lower end surface is matched circular conical surface, loading axis
It holds using self-aligning bearing.
Further, load column upper end is cased with ring weight.
Further, power mechanism includes motor, and motor output shaft is connect by shaft coupling with main shaft, main shaft upper end and to
Bearing inner race connection is surveyed, is connect by spring bearing with supporing shell in the middle part of main shaft.
Beneficial effect：Bearing test machine of the invention is surveyed in particular for the frictional force of this miniature bearing of inertia bearing
Examination, and have following advantages：
1, loading section of the present invention has self-regulated heart function, can be good at guaranteeing purely axially loaded, will not generate opposite
In the tilting moment of axis；
2, it is point contact between the bellmouth bottom of loading section conical head and part of detecting of the present invention, eliminates axially loaded
Influence factor of the device to test bearing test data；
3, the present invention increases the homing device of electromagnet in sensor position, enables force snesor automatic zero set, solves
Sensor is due to Excessive sensitivity, range is small and can not independently return to zero or the excessively difficult problem that manually returns to zero；
4, the present invention uses dual-gripper bearing, can not only play a supporting role well, moreover it is possible to the work of guiding is played to main shaft
With preventing main axle structure after prolonged use from occuring bending and deformation due to factors such as inclinations；
5, parts thereof installation and replacement of the present invention easily and fast, the components that loading section and part of detecting first contact due to
Frequent contact and apply varying load, fretting wear equivalent damage can occur for contact position, in structure of the invention, need to only tear loading blocks open
It unloads, replacement, does not interfere with the test of test bearing；
6, overall structure installation of the present invention, convenient disassembly, have the advantages of simple structure and easy realization, low in cost.
Detailed description of the invention
Fig. 1 is main view of the invention；
Fig. 2 is the top view of force application rod of the present invention
Appended drawing reference：1- power mechanism, 101- motor, 102- shaft coupling, 103- main shaft, 104- spring bearing, 105- supporting shell
Body, 2- bearing to be measured, 3- loaded ring, 4- loading mechanism, 401- loading blocks, 402- load column, 403- load bearings, 404- load
Shell, 405- ring weight, 5- force measuring machine, 501- force application rod, 502- sensor, 503- inductive head, 504- sliding rail, 505- return
Position device, 5051- column, 5052- electromagnet.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.
As shown in Figure 1, a kind of micro-bearing friction torgue measuring device, including power mechanism 1, the output of power mechanism 1
Axis is connect with the inner ring of bearing 2 to be measured, and the outer ring of bearing 2 to be measured is connect with loaded ring 3, is provided with loading mechanism on loaded ring 3
4,1 side of loaded ring is provided with force measuring machine 5, and force measuring machine 5 includes the force application rod 501 that left end is connect with 3 side of loaded ring, applies
501 right end of power bar is connect with sensor 502；The output shaft of certain power mechanism 1 can also connect with the outer ring of bearing 2 to be measured
It connects, the inner ring of bearing 2 to be measured is connect with loaded ring 3.
Further, 501 right end of force application rod as shown in Figure 2 is U-shaped hollow ring structure, and cavity ring inner sleeve has inductive head 503,
Inductive head 503 is connect with sensor 502, and the sliding rail 504 that sensor 502 can be made to horizontally slip is provided with below sensor 502,
When measuring the bearing of different-diameter, the diameter of loaded ring 3 is also different, will lead to force application rod 501 and moves left and right, this just needs to pass
Sensor 502 also moves left and right accordingly, while can also allow sensor to right translation when disassembling sensor 502, to make
Inductive head 503 is withdrawn from the U-shaped fork of force application rod 501, easy to disassemble.
Further, force measuring machine 5 further includes the homing device 505 for making force application rod 501 return to initial position, homing device
505 include the column 5051 being arranged on the right side of sensor 502, is provided with electromagnet 5052 at face force application rod 501 on column 5051,
501 right end of force application rod is made or is sprayed with magnetisable coating using magnetic material, and force application rod 501 returns to when electromagnet 5052 being made to be powered
Initial position.Electromagnet 5052 energization make force application rod 501 playback, while to sensor 502 return to zero, solve sensor 502 by
In Excessive sensitivity, range is small and can not independently return to zero or the excessively difficult problem that manually returns to zero.
Further, the loading mechanism 4 includes the loading blocks 401 connecting with loaded ring 3, is provided in loading blocks 401
Loading blocks 401 are applied with the load column 402 of axial force, load column 402 is connect with load shell 404 by load bearings 403, added
Carrying column 402 and 403 clearance fit of load bearings enables load column 402 to be axially moveable；401 upper surface of loading blocks is equipped with simultaneously
Conical bore, load 402 lower end surface of column are matched circular conical surface, and load bearings 403 use self-aligning bearing, load bearings 403
Aligning design cooperation loading blocks 401 and load column 402 circular conical surface matching design, can be good at guaranteeing that pure axial direction adds
It carries, will not generate the tilting moment relative to axis, while the components that loading section and part of detecting first contact are due to frequent
Contact and apply varying load, fretting wear equivalent damage can occur for contact position, in structure of the invention, need to only tear loading blocks 401 open
It unloads, replacement, does not interfere with the test of test bearing.
Further, load 402 upper end of column is cased with ring weight 405, by the quantity and matter that adjust ring weight 405
Amount, to adjust the axial load applied to bearing 2 to be measured.
Further, power mechanism 1 includes motor 101, and defeated 101 shaft of motor is connected by shaft coupling 102 and main shaft 103
It connects, shaft coupling 102 can eliminate the vibration of motor 101 and the torque that other pairs of measurements are unfavorable, turn round bearing 2 to be measured only
Square, 103 upper end of main shaft are connect with 2 inner ring of bearing to be measured, are connected in the middle part of main shaft 103 by spring bearing 104 and supporing shell 105
It connects；The preferred dual bearing structure of spring bearing 104, can not only play a supporting role, moreover it is possible to play guiding to main shaft well
Effect prevents main axle structure after prolonged use from occuring bending and deformation due to factors such as inclinations.
Measurement process：Bearing 2 to be measured is mounted on main shaft 103 first, by 3 sets of loaded ring outside bearing 2 to be measured, according to
Test request sets the weight of ring weight 405, so that setting is to the axially loaded of bearing 2 to be measured, then electromagnet 5052
Energization makes force application rod 501 return to initial position, and sensor 502 is returned to zero, and preparation is completed, and then starts motor 101, drives
2 inner ring of bearing rotation to be measured rotates 2 outer ring of bearing to be measured due to the frictional force of bearing 2 to be measured, and 2 outer ring of bearing to be measured drives
Loaded ring 3 applies pressure to inductive head 503 when force application rod 501 rotates to drive force application rod 501 to rotate, and sensor 502 measures
Pressure on inductive head 503 can calculate moment of friction of the bearing 2 to be measured under the load by conversion.
Embodiment provided above is better embodiment of the invention, only is used to facilitate to illustrate the present invention, not to this hair
It is bright to make any form of restriction, any those of ordinary skill in the art, if not departing from the proposed skill of the present invention
In the range of art feature, the equivalent embodiment that part is changed or modified is made using disclosed technology contents, and
Without departing from technical feature content of the invention, in the range of still falling within the technology of the present invention feature.
Claims (9)
1. a kind of micro-bearing friction torgue measuring device, it is characterised in that：Including power mechanism（1）, power mechanism（1）It is defeated
Shaft and bearing to be measured（2）Inner ring connection, bearing to be measured（2）Outer ring and loaded ring（3）Connection, loaded ring（3）Upper setting
There is loading mechanism（4）, loaded ring（1）Side is provided with force measuring machine（5）, force measuring machine（5）Including left end and loaded ring（3）Side
The force application rod of face connection（501）, force application rod（501）Right end and sensor（502）Connection.
2. a kind of micro-bearing friction torgue measuring device as described in claim 1, it is characterised in that：The force application rod
（501）Right end is hollow ring structure, and cavity ring inner sleeve has inductive head（503）, inductive head（503）With sensor（502）Connection.
3. a kind of micro-bearing friction torgue measuring device as claimed in claim 2, it is characterised in that：The force application rod
（501）Right end is U-shaped hollow ring structure, sensor（502）Lower section, which is provided with, can make sensor（502）The sliding rail to horizontally slip
（504）.
4. any one micro-bearing friction torgue measuring device as described in claims 1 to 3, it is characterised in that：The survey
Force mechanisms（5）It further include making force application rod（501）Return to the homing device of initial position（505）.
5. a kind of micro-bearing friction torgue measuring device as claimed in claim 4, it is characterised in that：The homing device
（505）Including sensor（502）The column of right side setting（5051）, column（5051）Upper face force application rod（501）Place is provided with
Electromagnet（5052）, force application rod（501）Right end is made or is sprayed with magnetisable coating using magnetic material, makes electromagnet（5052）It is logical
Force application rod when electric（501）Return to initial position.
6. a kind of micro-bearing friction torgue measuring device as described in claim 1, it is characterised in that：The loading mechanism
（4）Including with loaded ring（3）The loading blocks of connection（401）, loading blocks（401）On be provided with to loading blocks（401）Apply axial
The load column of power（402）, load column（402）Pass through load bearings（403）With load shell（404）Connection loads column（402）With
Load bearings（403）Clearance fit makes to load column（402）It can be axially moveable.
7. a kind of micro-bearing friction torgue measuring device as claimed in claim 6, it is characterised in that：The loading blocks
（401）Upper surface is equipped with conical bore, loads column（402）Lower end surface is matched circular conical surface, load bearings（403）Using tune
Mandrel is held.
8. a kind of micro-bearing friction torgue measuring device as claimed in claim 7, it is characterised in that：The load column
（402）Upper end is cased with ring weight（405）.
9. a kind of micro-bearing friction torgue measuring device as described in claim 1, it is characterised in that：The power mechanism
（1）Including motor（101）, motor is defeated（101）Shaft passes through shaft coupling（102）With main shaft（103）Connection, main shaft（103）Upper end
With bearing to be measured（2）Inner ring connection, main shaft（103）Middle part passes through spring bearing（104）With supporing shell（105）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810312375.XA CN108918000A (en) | 2018-04-09 | 2018-04-09 | A kind of micro-bearing friction torgue measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810312375.XA CN108918000A (en) | 2018-04-09 | 2018-04-09 | A kind of micro-bearing friction torgue measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108918000A true CN108918000A (en) | 2018-11-30 |
Family
ID=64402965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810312375.XA Pending CN108918000A (en) | 2018-04-09 | 2018-04-09 | A kind of micro-bearing friction torgue measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN108918000A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632161A (en) * | 2018-12-04 | 2019-04-16 | 上海大学 | A kind of Frictional Moment for Rolling Bearings test machine |
| CN109668663A (en) * | 2018-12-14 | 2019-04-23 | 河南科技大学 | Micro-bearing friction torgue test device and test method |
| CN109708888A (en) * | 2019-01-08 | 2019-05-03 | 燕山大学 | A kind of low speed angular contact ball bearing measurement of friction torque device and load measurement method |
| CN109781320A (en) * | 2018-12-25 | 2019-05-21 | 北京青云航空仪表有限公司 | A kind of no inner-ring bearing friction torque testing instrument and test method |
| CN109916541A (en) * | 2019-02-28 | 2019-06-21 | 河南科技大学 | A kind of turntable bearing frictional torque testing machine |
| CN110031223A (en) * | 2019-04-15 | 2019-07-19 | 浙江省机电产品质量检测所 | A kind of bearing frictional torque measuring device |
| CN110082017A (en) * | 2019-05-08 | 2019-08-02 | 北京理工大学 | A kind of bearing insert separating clamp |
| CN110207875A (en) * | 2019-07-15 | 2019-09-06 | 北京遥感设备研究所 | A kind of double-layer rolling bearing friction torque test device and test method |
| CN110346140A (en) * | 2019-08-23 | 2019-10-18 | 河南科技大学 | A kind of bearing collision experiment method and device |
| CN111366068A (en) * | 2020-03-18 | 2020-07-03 | 上海航天控制技术研究所 | Method and device for measuring preload associated parameters of bearing assembly |
| CN113447184A (en) * | 2021-06-23 | 2021-09-28 | 浙江工业大学 | Bearing friction torque testing mechanism under vacuum environment |
| CN113848062A (en) * | 2021-12-01 | 2021-12-28 | 三迪(常州)智能装备有限公司 | Oilless bearing friction force detection equipment |
| CN115096490A (en) * | 2022-07-29 | 2022-09-23 | 人本股份有限公司 | Linear guide rail bearing friction torque detection equipment |
| CN116007811A (en) * | 2023-01-09 | 2023-04-25 | 苏州铁近机电科技股份有限公司 | Bearing starting friction moment detection device |
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| CN107576434A (en) * | 2017-08-29 | 2018-01-12 | 西北农林科技大学 | One koji ditch Friction Moment of Ball Bearings measurement apparatus |
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| CN1828239A (en) * | 2005-03-03 | 2006-09-06 | 邓足斌 | Rigid superposing type force standard machine |
| CN203385499U (en) * | 2013-07-18 | 2014-01-08 | 上海思博特轴承技术研发有限公司 | Friction torque detector for bearing |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632161B (en) * | 2018-12-04 | 2020-10-30 | 上海大学 | Rolling bearing friction torque testing machine |
| CN109632161A (en) * | 2018-12-04 | 2019-04-16 | 上海大学 | A kind of Frictional Moment for Rolling Bearings test machine |
| CN109668663A (en) * | 2018-12-14 | 2019-04-23 | 河南科技大学 | Micro-bearing friction torgue test device and test method |
| CN109781320A (en) * | 2018-12-25 | 2019-05-21 | 北京青云航空仪表有限公司 | A kind of no inner-ring bearing friction torque testing instrument and test method |
| CN109781320B (en) * | 2018-12-25 | 2021-01-05 | 北京青云航空仪表有限公司 | Friction moment tester and testing method for bearing without inner ring |
| CN109708888A (en) * | 2019-01-08 | 2019-05-03 | 燕山大学 | A kind of low speed angular contact ball bearing measurement of friction torque device and load measurement method |
| CN109916541A (en) * | 2019-02-28 | 2019-06-21 | 河南科技大学 | A kind of turntable bearing frictional torque testing machine |
| CN110031223A (en) * | 2019-04-15 | 2019-07-19 | 浙江省机电产品质量检测所 | A kind of bearing frictional torque measuring device |
| CN110082017A (en) * | 2019-05-08 | 2019-08-02 | 北京理工大学 | A kind of bearing insert separating clamp |
| CN110207875A (en) * | 2019-07-15 | 2019-09-06 | 北京遥感设备研究所 | A kind of double-layer rolling bearing friction torque test device and test method |
| CN110207875B (en) * | 2019-07-15 | 2020-11-13 | 北京遥感设备研究所 | Double-layer rolling bearing friction torque testing device and testing method |
| CN110346140A (en) * | 2019-08-23 | 2019-10-18 | 河南科技大学 | A kind of bearing collision experiment method and device |
| CN110346140B (en) * | 2019-08-23 | 2020-11-20 | 河南科技大学 | Bearing collision experimental device |
| CN111366068A (en) * | 2020-03-18 | 2020-07-03 | 上海航天控制技术研究所 | Method and device for measuring preload associated parameters of bearing assembly |
| CN113447184A (en) * | 2021-06-23 | 2021-09-28 | 浙江工业大学 | Bearing friction torque testing mechanism under vacuum environment |
| CN113447184B (en) * | 2021-06-23 | 2022-04-29 | 浙江工业大学 | Bearing friction torque testing mechanism under vacuum environment |
| CN113848062A (en) * | 2021-12-01 | 2021-12-28 | 三迪(常州)智能装备有限公司 | Oilless bearing friction force detection equipment |
| CN115096490A (en) * | 2022-07-29 | 2022-09-23 | 人本股份有限公司 | Linear guide rail bearing friction torque detection equipment |
| CN115096490B (en) * | 2022-07-29 | 2024-01-19 | 人本股份有限公司 | Linear guide bearing friction moment detection equipment |
| CN116007811A (en) * | 2023-01-09 | 2023-04-25 | 苏州铁近机电科技股份有限公司 | Bearing starting friction moment detection device |
| CN116007811B (en) * | 2023-01-09 | 2023-09-19 | 苏州铁近机电科技股份有限公司 | Bearing starting friction moment detection device |
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Application publication date: 20181130 |
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| RJ01 | Rejection of invention patent application after publication |