CN207095749U - For the floating support structure of torque measurement and its electric dynamometer of composition - Google Patents
For the floating support structure of torque measurement and its electric dynamometer of composition Download PDFInfo
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- CN207095749U CN207095749U CN201721104881.7U CN201721104881U CN207095749U CN 207095749 U CN207095749 U CN 207095749U CN 201721104881 U CN201721104881 U CN 201721104881U CN 207095749 U CN207095749 U CN 207095749U
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- Prior art keywords
- float support
- bearing
- float
- floating
- dynamometer
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Abstract
The utility model provides a kind of for the floating support structure of torque measurement and its electric dynamometer of composition, including float support seat and one group of float support bearing for installing swinging structure, it is characterised in that：The float support bearing is three collar bearings, the inner ring of the float support bearing is fixedly connected with the swinging structure, the outer ring of the float support bearing is fixedly connected with the float support seat, the drive for driving middle ring to rotate also is fixedly connected with the middle ring of the float support bearing, when it is used on electric dynamometer, its swinging structure is dynamometer motor.The effect of this programme is：By improving the structure of float support bearing, the risk of float support clamping stagnation is effectively reduced, extends the service life of equipment, greatly improves the reliability and precision of dynamometer machine.
Description
Technical field
The utility model is related to torque measurement techniques, and in particular to a kind of floating support structure for torque measurement and its
The electric dynamometer of composition.
Background technology
As depicted in figs. 1 and 2, existing floating supporting type torque measuring mechanism is generally by float support base, branch of floating
Support the groups such as bearing, oscillating spindle, float support bearing (ball) cover, measuring arm of force, articulated joint, pull pressure sensor, sensor base
Into.Moment of torsion caused by actuating unit passes to measuring mechanism oscillating spindle by fixed shell, and oscillating spindle delivers torque to
Measuring arm of force, measuring arm of force have been fixed on float support base by pull pressure sensor, hinder measuring arm of force and oscillating spindle
Rotation, will now produce a resistance in pull pressure sensor, and the power that pull pressure sensor measurement obtains is this resistance,
The power that pull pressure sensor measurement obtains is multiplied by oscillating spindle center on measuring arm of force and, to the distance at articulated joint center, as swung
The torque born on main shaft, so as to realize the measurement to moment of torsion.
The defects of prior art is present be：
(1) using common rolling bearing, bearing is in close to quiet float support bearing during torque measurement
Slight oscillatory state only, it so the resistance that floating bearing shows is stiction, and can not reduce, have impact on measurement
Precision.
(2) because floating bearing is in slight oscillatory state, so when oscillating spindle bears larger radial load, float
Dynamic spring bearing only has several rollers of bottom to bear pressure, and roller can not be rotated continuously, and longtime running can cause roller
Advanced wear, equipment life is not only influenceed, and increase bearing resistance, influence measurement accuracy.
(3) for the float support of hydraulic dynamometer, electric eddy current dynamometer and electric dynamometer, measurement of power can be also superimposed
The resistance of machine itself bearing, causes measurement accuracy further to decline.
Utility model content
For in the prior art the defects of, the utility model provides a kind of float support knot for torque measurement first
Structure, by the improvement to bearing arrangement, it is improved the service life of float support bearing, reduce the friction resistance of measuring system
Power, so as to improve the precision of torque measurement.
To achieve these goals, technical scheme is as follows used by the utility model：
A kind of floating support structure for torque measurement, including float support seat (1) and one group are used to install and swing knot
The float support bearing (2) of structure, its key are：The float support bearing (2) is three collar bearings, the float support bearing
(2) inner ring is fixedly connected with the swinging structure, and the outer ring of the float support bearing (2) is solid with the float support seat (1)
Fixed connection, the drive for driving middle ring to rotate also is fixedly connected with the middle ring of the float support bearing (2)
(4)。
Based on above-mentioned improvement, traditional rolling bearing is replaced using three collar bearings, i.e., bearing arrangement from axle center radially according to
Secondary is inner ring+roller+middle ring+roller+outer ring, and middle ring can slowly run under the drive of drive, thus since, float
The frictional force of dynamic bearing depends on that minimum row roller of resistance, reduces the risk of float support clamping stagnation.
Meanwhile the rotation of middle ring can drive two row rollers to be rotated where oneself in raceway, it is therefore prevented that inactive state
All the time the situation by the several rollers in bottom by radial load, so as to improve the life-span of float support.
Moreover, the continuous rolling of roller causes the resistance of float support bearing to be changed into dynamic friction by static friction, improve
The measurement accuracy of moment of torsion.
Alternatively, the actuating unit for driving the drive (4) to rotate is provided with the float support seat (1)
(5)。
Further, the drive (4) is big sprocket wheel, and the actuating unit (5) includes motor (51) and slowed down
Commutator (52), a minor sprocket (53) is respectively arranged with the output shaft of deceleration commutator (52) left and right ends, should
Minor sprocket (53) is connected by chain (54) with a corresponding big sprocket wheel.
In order to keep stress equalization, two float support bearings (2) on the float support seat (1) are symmetrical arranged,
Its end is additionally provided with bearing (ball) cover (6).
Further, the rotation direction of the middle ring of the float support bearing (2) and the rotation side of the swinging structure
To opposite.
When it is used in common torque-measuring apparatus, the swinging structure is oscillating spindle, the two of the oscillating spindle
End is fixed on float support seat (1) by the floating bearing (2).
When it is used for electric dynamometer, the swinging structure is dynamometer motor (7), and the housing of the dynamometer motor (7) leads to
The floating bearing (2) is crossed to be fixed on float support seat (1).
Based on said structure, the utility model also proposes a kind of electric dynamometer, using foregoing floating support structure, its
In, the swinging structure installed on the float support bearing (2) is dynamometer motor (7), and the housing of the dynamometer motor (7) passes through institute
Floating bearing (2) is stated to be fixed on float support seat (1).
Further, it is connected with pull pressure sensor on the casing of dynamometer motor (7).
Further, measuring arm of force is provided with the dynamometer motor (7) casing, the upper end of the pull pressure sensor leads to
Cross articulated joint to be hinged on the measuring arm of force, the lower end of the pull pressure sensor is hinged on the pressure by articulated joint
On sensor support seat, the pull pressure sensor support base is fixed on the chassis of the float support seat (1).
Remarkable result of the present utility model is：By improving the structure of float support bearing, floating branch is effectively reduced
The risk of clamping stagnation is supportted, extends the service life of equipment, greatly improves the reliability and precision of dynamometer machine.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art.
Fig. 1 is the structural representation of existing floating supporting type torque-measuring apparatus；
Fig. 2 is the sectional view of existing floating supporting type torque-measuring apparatus；
Fig. 3 is the mounting structure schematic diagram of the utility model specific embodiment；
Fig. 4 is the three-dimensional structure diagram of the utility model specific embodiment.
Mark is respectively in figure：1- float support seats, 2- float support bearings, 3- main shafts, 4- drives, 5- engines
Structure, 51- motors, 52- deceleration commutators, 53- minor sprockets, 54- chains, 6- bearing (ball) covers, 7- dynamometer motors.
Embodiment
The embodiment of technical solutions of the utility model is described in detail below in conjunction with accompanying drawing.Following examples are only
For clearly illustrating the technical solution of the utility model, therefore example is only used as, and this practicality can not be limited with this
New protection domain.
As shown in Figure 3, Figure 4, the present embodiment discloses a kind of floating support structure for torque measurement, including float support
Seat 1 and one group are used to installing the float support bearing 2 of swinging structure, and the swinging structure in this example is dynamometer motor 7, the floating
Spring bearing 2 is three collar bearings, and the inner ring of the float support bearing 2 is fixedly connected with the housing of the dynamometer motor 7, the floating
The outer ring of spring bearing 2 is fixedly connected with the float support seat 1, also fixed on the middle ring of the float support bearing 2 to connect
Be connected to the drive 4 for driving middle ring to rotate, the drive 4 is driven by actuating unit 5, float support bearing 2 its
End is additionally provided with bearing (ball) cover 6.
In the specific implementation, drive 4 is big sprocket wheel, is provided with float support seat 1 for driving the drive 4
The actuating unit 5 of rotation.Actuating unit 5 in this example is driven using motor, including motor 51 and deceleration commutator 52,
A minor sprocket 53 is respectively arranged with the output shaft of the left and right ends of deceleration commutator 52, the minor sprocket 53 passes through chain 54
Connected with a corresponding big sprocket wheel.During torque measurement, under the drive of motor 51, in the float support bearing 2
Between ring rotation direction it is opposite with the rotation direction of main shaft 3 of the dynamometer motor 7.
The utility model proposes floating support structure can be widely applied to hydraulic dynamometer, electric eddy current dynamometer and electric power
Dynamometer machine.The present embodiment is illustrated only for the application of electric dynamometer, a kind of electric dynamometer as shown in Figure 3, Figure 4,
Dynamometer motor 7 is installed on the float support seat 1, the housing of the dynamometer motor 7 passes through float support bearing 2 and pressure
Sensor is fixed on the float support seat 1, and main shaft 3 is protruding from the both ends of the dynamometer motor 7 respectively.In the survey
Measuring arm of force is provided with the casing of work(motor 7, the upper end of the pull pressure sensor is hinged on the measuring arm of force by articulated joint
On, the lower end of the pull pressure sensor is hinged on the pull pressure sensor support base by articulated joint, the pressure
Sensor support seat is fixed on the chassis of the float support seat 1.
Operation principle of the present utility model is：
By the way that traditional roller bearing is changed into three collar bearings, using in motor 51 and sprocket drive structure driving
Between ring slowly run so that two row rollers rotate where oneself in raceway, it is therefore prevented that several by bottom all the time under inactive state
Roller by radial load situation, so as to improve the life-span of float support bearing, meanwhile, floating bearing is become by original static friction
For dynamic friction, the risk of roller and raceway clamping stagnation can be reduced, improves torque measurement precision.By on alternating electromotive force chassis
On dynamometer machine with and experiment show that the floating support structure causes the float support life-span to bring up to 80000 by 50000 hours
Hour, torque measurement precision has brought up to 5Nm by 10Nm.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in previous embodiment, either to which part or all technical characteristic
Carry out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from the utility model embodiment
The scope of technical scheme, it all should cover among claim of the present utility model and the scope of specification.
Claims (10)
1. a kind of floating support structure for torque measurement, including float support seat (1) and one group are used to install swinging structure
Float support bearing (2), it is characterised in that：The float support bearing (2) is three collar bearings, the float support bearing (2)
Inner ring be fixedly connected with the swinging structure, the outer ring of the float support bearing (2) and the float support seat (1) are fixed to be connected
Connect, the drive (4) for driving middle ring to rotate also is fixedly connected with the middle ring of the float support bearing (2).
2. floating support structure according to claim 1, it is characterised in that：It is provided with the float support seat (1)
For the actuating unit (5) for driving the drive (4) to rotate.
3. floating support structure according to claim 2, it is characterised in that：The drive (4) is big sprocket wheel, described dynamic
Force mechanisms (5) include motor (51) and deceleration commutator (52), the output in deceleration commutator (52) left and right ends
A minor sprocket (53) is respectively arranged with axle, the minor sprocket (53) is connected by chain (54) with a corresponding big sprocket wheel.
4. floating support structure according to claim 3, it is characterised in that：Two on the float support seat (1) are floating
Dynamic spring bearing (2) is symmetrical arranged, and bearing (ball) cover (6) is additionally provided with its end.
5. floating support structure according to claim 3, it is characterised in that：The middle ring of the float support bearing (2)
Rotation direction it is opposite with the rotation direction of the swinging structure.
6. according to any described floating support structures of claim 1-5, it is characterised in that：The swinging structure is led to swing
Axle, the both ends of the oscillating spindle are fixed on float support seat (1) by the floating bearing (2).
7. according to any described floating support structures of claim 1-5, it is characterised in that：The swinging structure is dynamometer motor
(7), the housing of the dynamometer motor (7) is fixed on float support seat (1) by the floating bearing (2).
A kind of 8. electric dynamometer, it is characterised in that：Including any described floating support structures of claim 1-4, wherein, institute
It is dynamometer motor (7) to state the swinging structure installed on float support bearing (2), and the housing of the dynamometer motor (7) passes through described float
Dynamic bearing (2) is fixed on float support seat (1).
9. electric dynamometer according to claim 8, it is characterised in that：Drawing is connected with the casing of dynamometer motor (7)
Pressure sensor.
10. electric dynamometer according to claim 9, it is characterised in that：It is provided with the dynamometer motor (7) casing
Measuring arm of force, the upper end of the pull pressure sensor are hinged on the measuring arm of force by articulated joint, the pull pressure sensor
Lower end is hinged on the pull pressure sensor support base by articulated joint, and the pull pressure sensor support base is fixed on institute
On the chassis for stating float support seat (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721104881.7U CN207095749U (en) | 2017-08-31 | 2017-08-31 | For the floating support structure of torque measurement and its electric dynamometer of composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721104881.7U CN207095749U (en) | 2017-08-31 | 2017-08-31 | For the floating support structure of torque measurement and its electric dynamometer of composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207095749U true CN207095749U (en) | 2018-03-13 |
Family
ID=61540143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721104881.7U Expired - Fee Related CN207095749U (en) | 2017-08-31 | 2017-08-31 | For the floating support structure of torque measurement and its electric dynamometer of composition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207095749U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362414A (en) * | 2018-04-18 | 2018-08-03 | 北京博科测试系统股份有限公司 | A kind of new automobile emission test road load system |
| CN112229555A (en) * | 2020-09-24 | 2021-01-15 | 台州市光中电器制造有限公司 | Novel dynamometer |
| CN112747852A (en) * | 2019-10-29 | 2021-05-04 | 上海华依科技集团股份有限公司 | Device and method for measuring stress or moment of large-size heavy component |
| CN113125166A (en) * | 2021-02-22 | 2021-07-16 | 湖北环一电磁装备工程技术有限公司 | Installation structure and installation method of rotating hub tension and compression sensor of chassis dynamometer |
-
2017
- 2017-08-31 CN CN201721104881.7U patent/CN207095749U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362414A (en) * | 2018-04-18 | 2018-08-03 | 北京博科测试系统股份有限公司 | A kind of new automobile emission test road load system |
| CN112747852A (en) * | 2019-10-29 | 2021-05-04 | 上海华依科技集团股份有限公司 | Device and method for measuring stress or moment of large-size heavy component |
| CN112229555A (en) * | 2020-09-24 | 2021-01-15 | 台州市光中电器制造有限公司 | Novel dynamometer |
| CN112229555B (en) * | 2020-09-24 | 2021-11-23 | 台州市光中电器制造有限公司 | Novel dynamometer |
| CN113125166A (en) * | 2021-02-22 | 2021-07-16 | 湖北环一电磁装备工程技术有限公司 | Installation structure and installation method of rotating hub tension and compression sensor of chassis dynamometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180313 Termination date: 20200831 |