CN104236772A - Knuckle bearing starting torque measurement device and measurement method - Google Patents
Knuckle bearing starting torque measurement device and measurement method Download PDFInfo
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- CN104236772A CN104236772A CN201410424613.8A CN201410424613A CN104236772A CN 104236772 A CN104236772 A CN 104236772A CN 201410424613 A CN201410424613 A CN 201410424613A CN 104236772 A CN104236772 A CN 104236772A
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Abstract
The invention provides a measurement method of a knuckle bearing starting torque measurement device and belongs to the technical field of mechanical measurement. The knuckle bearing starting torque measurement device is characterized in that an inner ring connection tool, an upper loading applying tool and a lower loading applying tool are included, and the upper loading applying tool and the lower loading applying tool are identical in structure; a knuckle bearing A is installed in a structure of the upper loading applying tool, then a knuckle bearing B is installed in a structure of the lower loading applying tool, the upper end of the inner ring connection tool is fixed to the upper loading applying tool through the knuckling bearing A, and the lower end of the inner ring connection tool is fixed to the lower loading applying tool through the knuckling bearing B. By means of the measurement method, the problem that when the knuckle bearings bear certain outer loads, an inner ring and an outer ring rotate relatively and a starting torque is difficult to measure is solved, the measurement method can also be used for measuring the starting torque when a metal roller bearing and a sliding bearing rotate relatively under the action of outer loads, the measurement method is easy and convenient to operate and needed equipment conditions are simple.
Description
Technical field
The invention belongs to mechanical measurement technique field, relate to a kind of improvement of oscillating bearing staring torque measuring method.
Background technology
Oscillating bearing is made up of, shown in Fig. 1 inner ring and outer ring.Generally bear radial load or axial load or bear the resultant load of two kinds of load simultaneously.In the design of oscillating bearing, no-load staring torque is generally had to be not more than the requirement of certain setting.Corresponding when oscillating bearing detects factory inspection, the measurement of no-load staring torque need be carried out.The measuring method adopted normally fixes inner ring (outer ring), when not applying operating load, measure outer ring (inner ring) by extension counterweight or other means and rotate power instantaneously or moment, shown in Fig. 2 relative to inner ring (outer ring).But oscillating bearing seldom has uncharged situation in actual use, people are more it is of concern that under operating load effect, and oscillating bearing Internal and external cycle staring torque is in relative rotation how many, and can staring torque meet request for utilization.
Obviously, only the measurement of no-load staring torque is carried out to oscillating bearing at present, can not actual needs be met.The no-load staring torque measuring method of current employing, can not be used for oscillating bearing and bear under operating load.When being subject to certain radial load (shown in Fig. 3) or axial load (shown in Fig. 4), due to frock must be had to be applied on oscillating bearing Internal and external cycle by radial load or axial load, therefore measure oscillating bearing outer ring (inner ring) and rotate the power of moment or the more difficult of moment change relative to inner ring (outer ring).
Summary of the invention
Object of the present invention:
Designing a kind of oscillating bearing staring torque measurement mechanism, relate to measuring technique and mechanical designing technique, solving the measurement difficult problem that oscillating bearing Internal and external cycle when bearing certain load turns round staring torque relatively.
Technical scheme of the present invention:
A kind of oscillating bearing staring torque measurement mechanism, it is characterized in that, comprise inner ring connecting tooling, upper load applying frock and lower load applying frock, upper load applying frock is identical with lower load applying tool structure;
Inner ring connecting tooling two ends are cylindrical step axle, install location for oscillating bearing inner ring; Center section is torgue measurement section;
Oscillating bearing A is installed in the structure of upper load applying frock, subsequently oscillating bearing B is installed in lower load applying tool structure, the upper end of inner ring connecting tooling is fixed by oscillating bearing A and upper load applying frock, the lower end of inner ring connecting tooling is fixed by oscillating bearing B and lower load applying frock.
The torgue measurement section cross section of described inner ring connecting tooling is rectangle, for the clamping of torque spanner.
One end of described upper load applying frock and lower load applying frock has column type gripping section, for the connection with external load bringing device; Have a square macropore in the middle part of the other end, end has cylindrical step hole, and square macropore is connected and axes normal with cylindrical step hole, and cylindrical step hole is used for location, oscillating bearing outer ring and assembling.
Described oscillating bearing A is installed in the cylindrical step hole of upper load applying frock, pushes down the outer ring of oscillating bearing A with cover plate, with screw, cover plate and upper load applying frock are fixed; Oscillating bearing B is installed in the cylindrical step hole of lower load applying frock, then pushes down the outer ring of oscillating bearing B with cover plate, with screw, cover plate and lower load applying frock 7 are fixed.
The upper end of described inner ring connecting tooling is stretched in the macropore of upper load applying frock by the inner ring of oscillating bearing A, then lining is enclosed within the upper end of inner ring connecting tooling, then the upper end of inner ring connecting tooling is tightened in the inner ring of oscillating bearing A by nut; The lower end of inner ring connecting tooling is stretched into by the inner ring of oscillating bearing B and downloads and apply in the macropore of frock, then lining is enclosed within the lower end of inner ring connecting tooling, then the lower end of inner ring connecting tooling is tightened in the inner ring of oscillating bearing B by nut.
A kind of oscillating bearing staring torque measuring method, it is characterized in that, the gripping section of upper load applying frock with lower load applying frock is comprised the steps: to be connected with external load charger respectively, apply to stretch or compressive load to oscillating bearing A and oscillating bearing B, inner ring connecting tooling is measured the staring torque sum M of two relative outer ring rotatings of oscillating bearing inner ring
a+ M
b; Then change oscillating bearing A with oscillating bearing C, again measure the staring torque sum M of two relative outer ring rotatings of oscillating bearing inner ring
b+ M
c; Then change oscillating bearing B with oscillating bearing A, again measure the staring torque sum M of two relative outer ring rotatings of oscillating bearing inner ring
a+ M
c; Finally solve draw each oscillating bearing bearing necessarily the staring torque under external load function in the axial direction.
Key point of the present invention:
Utilize three oscillating bearings, by measuring the staring torque sum of two oscillating bearings under external load function in pairs respectively, then solving and drawing the staring torque of each oscillating bearing under external load function;
The connection of load applying frock and oscillating bearing outer ring and the connection of inner ring connecting tooling and oscillating bearing inner ring are detachable, are convenient to oscillating bearing and change the outfit.
Beneficial effect of the present invention:
The invention solves the measurement difficult problem that oscillating bearing Internal and external cycle when bearing certain external applied load turns round staring torque relatively, the method is applicable to the measurement that all oscillating bearings relatively turn round staring torque under external load function, also can be used for the measurement that metal roller bearing, sliding bearing relatively turn round staring torque under external load function, this method is easy and simple to handle, and equipment needed thereby condition is simple.
Accompanying drawing explanation
Fig. 1 is oscillating bearing structural representation
Fig. 2 is that oscillating bearing carries staring torque instrumentation plan without outer
Fig. 3 is that oscillating bearing is subject to axially outer year schematic diagram
Fig. 4 is that oscillating bearing is subject to footpath outwards to carry schematic diagram
Fig. 5 is this invention general structure schematic diagram
Fig. 6 is the sectional arrangement drawing of this inventive embodiments 1
Fig. 7 is the sectional arrangement drawing of this inventive embodiments 2
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further details.See Fig. 6.A kind of oscillating bearing staring torque measurement mechanism, comprise inner ring connecting tooling 5, upper load applying frock 6 and lower load applying frock 7, upper load applying frock 6 times load applying frock 7 structures are identical.
Inner ring connecting tooling 5 two ends are cylindrical step axle, install location for oscillating bearing inner ring; Center section is torgue measurement section;
Oscillating bearing A is installed in the structure of upper load applying frock 6, subsequently oscillating bearing B is installed in lower load applying frock 7 structure, the upper end of inner ring connecting tooling 5 is fixed by oscillating bearing A and upper load applying frock 6, the lower end of inner ring connecting tooling 5 is fixed by oscillating bearing B and lower load applying frock 7.
The torgue measurement section cross section of inner ring connecting tooling 5 is rectangle, for the clamping of torque spanner.
One end of upper load applying frock 6 has column type gripping section, for the connection with external load bringing device; Have a square macropore 8 in the middle part of the other end, end has cylindrical step hole 9, and square macropore 8 is connected and axes normal with cylindrical step hole 9, and cylindrical step hole is used for oscillating bearing A outer ring 1 and locates and assemble.
One end of lower load applying frock 7 has column type gripping section, for the connection with external load bringing device; Have a square macropore 19 in the middle part of the other end, end has cylindrical step hole 18, and square macropore 19 is connected and axes normal with cylindrical step hole 18, and cylindrical step hole 18 is located for oscillating bearing B outer ring 4 and assembles.
First oscillating bearing A is installed in the cylindrical step hole 9 of upper load applying frock 6, pushes down the outer ring 2 of oscillating bearing A with cover plate 11, with screw 16, cover plate 11 and upper load applying frock 6 are fixed; Oscillating bearing B is installed in the cylindrical step hole 18 of lower load applying frock 7, then pushes down the outer ring 4 of oscillating bearing B with cover plate 13, with screw 17, cover plate 13 and lower load applying frock 7 are fixed.
Subsequently the upper end of inner ring connecting tooling 5 is stretched into by the inner ring 1 of oscillating bearing A in the macropore 8 of upper load applying frock 6, again lining 12 is enclosed within the upper end of inner ring connecting tooling 5, then by nut 10, the upper end of inner ring connecting tooling 5 is tightened on the inner ring 1 of oscillating bearing A; The lower end of inner ring connecting tooling 5 is stretched into by the inner ring 3 of oscillating bearing B in the macropore 19 of lower load applying frock 7, again lining 14 is enclosed within the lower end of inner ring connecting tooling 5, then by nut 15, the lower end of inner ring connecting tooling 5 is twisted the inner ring 3 leaning against oscillating bearing B.
During torgue measurement, first the gripping section of upper load applying frock 6 with lower load applying frock 7 is connected with external load charger respectively, apply to stretch or compressive load 20000N to oscillating bearing A and oscillating bearing B, inner ring connecting tooling 5 is measured the staring torque sum M of two relative outer ring rotatings of oscillating bearing inner ring
a+ M
b=62N.m; Then change oscillating bearing A with oscillating bearing C, again measure the staring torque sum M of two relative outer ring rotatings of oscillating bearing inner ring
b+ M
c=68N.m; Then change oscillating bearing B with oscillating bearing A, again measure the staring torque sum M of two relative outer ring rotatings of oscillating bearing inner ring
a+ M
c=64N.m; Finally solve and show that the staring torque that oscillating bearing A is bearing 2000N external applied load is in the axial direction 29N.m, the staring torque that oscillating bearing B is bearing 2000N external applied load is in the axial direction 33N.m, and the staring torque that oscillating bearing C is bearing 2000N external applied load is in the axial direction 35N.m.
The present invention is by a set of oscillating bearing torgue measurement frock of design, adopt the method measured in pairs, solve the measurement difficult problem that oscillating bearing Internal and external cycle when bearing certain external applied load turns round staring torque relatively, the method is applicable to the measurement that all oscillating bearings relatively turn round staring torque under external load function, also can be used for the measurement that metal roller bearing, sliding bearing relatively turn round staring torque under external load function, this method is easy and simple to handle, and equipment needed thereby condition is simple.
Embodiment 1:
Under this embodiment bears load effect in the axial direction for oscillating bearing, staring torque is measured.
Inner ring connecting tooling 5 two ends are cylindrical step axle, install location for oscillating bearing inner ring; Center section is torgue measurement section;
Oscillating bearing A is installed in the structure of upper load applying frock 6, subsequently oscillating bearing B is installed in lower load applying frock 7 structure, the upper end of inner ring connecting tooling 5 is fixed by oscillating bearing A and upper load applying frock 6, the lower end of inner ring connecting tooling 5 is fixed by oscillating bearing B and lower load applying frock 7.
The torgue measurement section cross section of inner ring connecting tooling 5 is rectangle, for the clamping of torque spanner.
One end of upper load applying frock 6 has column type gripping section, for the connection with external load bringing device; Have a square macropore 8 in the middle part of the other end, end has cylindrical step hole 9, and square macropore 8 is connected and axes normal with cylindrical step hole 9, and cylindrical step hole is used for oscillating bearing A outer ring 1 and locates and assemble.
One end of lower load applying frock 7 has column type gripping section, for the connection with external load bringing device; Have a square macropore 19 in the middle part of the other end, end has cylindrical step hole 18, and square macropore 19 is connected and axes normal with cylindrical step hole 18, and cylindrical step hole 18 is located for oscillating bearing B outer ring 4 and assembles.
First oscillating bearing A is installed in the cylindrical step hole 9 of upper load applying frock 6, pushes down the outer ring 2 of oscillating bearing A with cover plate 11, with screw 16, cover plate 11 and upper load applying frock 6 are fixed; Oscillating bearing B is installed in the cylindrical step hole 18 of lower load applying frock 7, then pushes down the outer ring 4 of oscillating bearing B with cover plate 13, with screw 17, cover plate 13 and lower load applying frock 7 are fixed.
Subsequently the upper end of inner ring connecting tooling 5 is stretched into by the inner ring 1 of oscillating bearing A in the macropore 8 of upper load applying frock 6, again lining 12 is enclosed within the upper end of inner ring connecting tooling 5, then by nut 10, the upper end of inner ring connecting tooling 5 is tightened on the inner ring 1 of oscillating bearing A; The lower end of inner ring connecting tooling 5 is stretched into by the inner ring 3 of oscillating bearing B in the macropore 19 of lower load applying frock 7, again lining 14 is enclosed within the lower end of inner ring connecting tooling 5, then by nut 15, the lower end of inner ring connecting tooling 5 is twisted the inner ring 3 leaning against oscillating bearing B.
During torgue measurement, first the gripping section of upper load applying frock 6 with lower load applying frock 7 is connected with external load charger respectively, apply to stretch or compressive load 20000N to oscillating bearing A and oscillating bearing B, inner ring connecting tooling 5 is measured the staring torque sum M of two relative outer ring rotatings of oscillating bearing inner ring
a+ M
b=62N.m; Then change oscillating bearing A with oscillating bearing C, again measure the staring torque sum M of two relative outer ring rotatings of oscillating bearing inner ring
b+ M
c=68N.m; Then change oscillating bearing B with oscillating bearing A, again measure the staring torque sum M of two relative outer ring rotatings of oscillating bearing inner ring
a+ M
c=64N.m; Finally solve and show that the staring torque that oscillating bearing A is bearing 2000N external applied load is in the axial direction 29N.m, the staring torque that oscillating bearing B is bearing 2000N external applied load is in the axial direction 33N.m, and the staring torque that oscillating bearing C is bearing 2000N external applied load is in the axial direction 35N.m.
Embodiment 2:
Under this embodiment bears radially load effect for oscillating bearing, staring torque is measured.
Inner ring connecting tooling 5 upper end is two fork ears of band cylindrical hole, cylinder bore diameter is identical with inner ring 1 diameter of oscillating bearing A, two fork ear inner height is more bigger than oscillating bearing inner ring height, can be installed together in inner ring connecting tooling 5 upper end and oscillating bearing A with a straight pin 8; Inner ring connecting tooling 5 lower end is two fork ears of band cylindrical hole, cylinder bore diameter is identical with inner ring 3 diameter of oscillating bearing B, two fork ear inner height is more bigger than oscillating bearing inner ring height, can be installed together in inner ring connecting tooling 5 lower end and oscillating bearing B with a straight pin 9; Inner ring connecting tooling 5 center section is torgue measurement section.Torgue measurement section cross section is rectangle, for the clamping of torque spanner.
Upper load applying frock 6 is identical with the structure of lower load applying frock 7.One end has column type gripping section, for the connection with external load bringing device; The other end is band cylindrical hole monaural chip architecture, cylinder bore diameter and oscillating bearing A with inner ring 3 diameter of oscillating bearing B identical, install for coordinating with bearing outer ring.
Claims (6)
1. an oscillating bearing staring torque measurement mechanism, is characterized in that, comprise inner ring connecting tooling, upper load applying frock and lower load applying frock, upper load applying frock is identical with lower load applying tool structure;
Inner ring connecting tooling two ends are cylindrical step axle, install location for oscillating bearing inner ring; Center section is torgue measurement section;
Oscillating bearing A is installed in the structure of upper load applying frock, subsequently oscillating bearing B is installed in lower load applying tool structure, the upper end of inner ring connecting tooling is fixed by oscillating bearing A and upper load applying frock, the lower end of inner ring connecting tooling is fixed by oscillating bearing B and lower load applying frock.
2. oscillating bearing staring torque measurement mechanism according to claim 1, is characterized in that, the torgue measurement section cross section of described inner ring connecting tooling is rectangle, for the clamping of torque spanner.
3. oscillating bearing staring torque measurement mechanism according to claim 1, is characterized in that, one end of described upper load applying frock and lower load applying frock has column type gripping section, for the connection with external load bringing device; Have a square macropore in the middle part of the other end, end has cylindrical step hole, and square macropore is connected and axes normal with cylindrical step hole, and cylindrical step hole is used for location, oscillating bearing outer ring and assembling.
4. oscillating bearing staring torque measurement mechanism according to claim 1, it is characterized in that, described oscillating bearing A is installed in the cylindrical step hole of upper load applying frock, pushes down the outer ring of oscillating bearing A with cover plate, with screw, cover plate and upper load applying frock are fixed; Oscillating bearing B is installed in the cylindrical step hole of lower load applying frock, then pushes down the outer ring of oscillating bearing B with cover plate, with screw, cover plate and lower load applying frock are fixed.
5. oscillating bearing staring torque measurement mechanism according to claim 1, it is characterized in that, the upper end of described inner ring connecting tooling is stretched into by the inner ring of oscillating bearing A in the macropore of upper load applying frock, again lining is enclosed within the upper end of inner ring connecting tooling, then by nut, the upper end of inner ring connecting tooling is tightened in the inner ring of oscillating bearing A; The lower end of inner ring connecting tooling is stretched into by the inner ring of oscillating bearing B and downloads and apply in the macropore of frock, then lining is enclosed within the lower end of inner ring connecting tooling, then the lower end of inner ring connecting tooling is tightened in the inner ring of oscillating bearing B by nut.
6. an oscillating bearing staring torque measuring method, it is characterized in that, the gripping section of upper load applying frock with lower load applying frock is comprised the steps: to be connected with external load charger respectively, apply to stretch or compressive load to oscillating bearing A and oscillating bearing B, inner ring connecting tooling is measured the staring torque sum M of two relative outer ring rotatings of oscillating bearing inner ring
a+ M
b; Then change oscillating bearing A with oscillating bearing C, again measure the staring torque sum M of two relative outer ring rotatings of oscillating bearing inner ring
b+ M
c; Then change oscillating bearing B with oscillating bearing A, again measure the staring torque sum M of two relative outer ring rotatings of oscillating bearing inner ring
a+ M
c; Finally solve draw each oscillating bearing bearing necessarily the staring torque under external load function in the axial direction.
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| CN201410424613.8A CN104236772B (en) | 2014-08-26 | 2014-08-26 | A kind of oscillating bearing staring torque measuring device and measuring method |
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| CN201410424613.8A CN104236772B (en) | 2014-08-26 | 2014-08-26 | A kind of oscillating bearing staring torque measuring device and measuring method |
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| CN104236772B CN104236772B (en) | 2018-11-23 |
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Cited By (7)
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| CN105841962A (en) * | 2016-03-29 | 2016-08-10 | 燕山大学 | Novel joint bearing wearing service lifetime testing clamp |
| CN107966288A (en) * | 2017-11-24 | 2018-04-27 | 四川凌峰航空液压机械有限公司 | The having a double meaning bearings collet switching frock of variety classes |
| CN109883820A (en) * | 2019-03-12 | 2019-06-14 | 吉林大学 | Sample holding device for high-temperature high-frequency complex load load test |
| CN111024394A (en) * | 2019-12-20 | 2020-04-17 | 东方电气集团东方汽轮机有限公司 | Spherical torsional moment measuring device under thrust bearing working state |
| CN111721532A (en) * | 2020-05-22 | 2020-09-29 | 扬州市舜意机械有限公司 | Synchronous rotation testing machine for inner ring and outer ring of long-rod-end joint bearing |
| CN112229629A (en) * | 2020-10-16 | 2021-01-15 | 中国直升机设计研究所 | Self-lubricating joint bearing starting torque measuring tool and measuring method |
| CN112536743A (en) * | 2020-11-20 | 2021-03-23 | 昌河飞机工业（集团）有限责任公司 | Clamping device for testing starting torque of joint bearing |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841962A (en) * | 2016-03-29 | 2016-08-10 | 燕山大学 | Novel joint bearing wearing service lifetime testing clamp |
| CN107966288A (en) * | 2017-11-24 | 2018-04-27 | 四川凌峰航空液压机械有限公司 | The having a double meaning bearings collet switching frock of variety classes |
| CN109883820A (en) * | 2019-03-12 | 2019-06-14 | 吉林大学 | Sample holding device for high-temperature high-frequency complex load load test |
| CN109883820B (en) * | 2019-03-12 | 2024-03-19 | 吉林大学 | Sample clamping device for high-temperature high-frequency complex load loading test |
| CN111024394A (en) * | 2019-12-20 | 2020-04-17 | 东方电气集团东方汽轮机有限公司 | Spherical torsional moment measuring device under thrust bearing working state |
| CN111024394B (en) * | 2019-12-20 | 2021-07-27 | 东方电气集团东方汽轮机有限公司 | Spherical torsional moment measuring device under thrust bearing working state |
| CN111721532A (en) * | 2020-05-22 | 2020-09-29 | 扬州市舜意机械有限公司 | Synchronous rotation testing machine for inner ring and outer ring of long-rod-end joint bearing |
| CN111721532B (en) * | 2020-05-22 | 2022-08-09 | 扬州市舜意机械有限公司 | Synchronous rotation testing machine for inner ring and outer ring of long-rod-end joint bearing |
| CN112229629A (en) * | 2020-10-16 | 2021-01-15 | 中国直升机设计研究所 | Self-lubricating joint bearing starting torque measuring tool and measuring method |
| CN112229629B (en) * | 2020-10-16 | 2022-07-26 | 中国直升机设计研究所 | Self-lubricating joint bearing starting torque measuring tool and measuring method |
| CN112536743A (en) * | 2020-11-20 | 2021-03-23 | 昌河飞机工业（集团）有限责任公司 | Clamping device for testing starting torque of joint bearing |
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