CN206348127U - A kind of rotary shaft balance dynamic loading device - Google Patents
A kind of rotary shaft balance dynamic loading device Download PDFInfo
- Publication number
- CN206348127U CN206348127U CN201621251217.0U CN201621251217U CN206348127U CN 206348127 U CN206348127 U CN 206348127U CN 201621251217 U CN201621251217 U CN 201621251217U CN 206348127 U CN206348127 U CN 206348127U
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- Prior art keywords
- balance
- rotary shaft
- power output
- loading device
- output shaft
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Abstract
The utility model discloses a kind of rotary shaft balance dynamic loading device, including stand, the motor being arranged on stand, the power output shaft for being arranged on stand upper surface, the clutch end of the motor is connected on power output shaft by belt, one end of the power output shaft is connected with dynamic loading device by rotary shaft balance, and the other end of power output shaft is connected on slip ring electrical feedthrough by shaft coupling；Which solves the problem of state's inner rotary shaft balance loading, the precision of rotary shaft balance measurement is improved, the blank of domestic association area has been filled up；Contrasted with same kind of products at abroad, more preferably, using more convenient, maintenance cost is low for efficiency-cost ratio.
Description
Technical field
The present invention relates to wind tunnel test field, a kind of specifically dynamic loading device of rotary shaft balance.
Background technology
Rotary shaft balance is mainly used in the smooth influence wind tunnel test of propeller aeroplane, directly can accurately measure propeller load
Lotus.Rotary shaft balance calibration includes static loading and dynamic load, and static loading is identical with balance normal calibration, and dynamic load is then
Need to calibrate balance imposed load under certain rotating speed, so as to obtain accurate balance formula.Rotary shaft balance dynamic load
It is a new technical field of comparison at home, country's wind-tunnel is not shown in its specific device also at present, and external wind-tunnel has correlation
Record.Conventional rotary shaft balance rotating speed is within 10000 revs/min at present, and external loading device can be in balance
Apply rated load in the range of maximum speed.
The content of the invention
It is an object of the invention to provide a kind of dynamic loading device of rotary shaft balance, realizing the rotating speed of balance can reach
10000 revs/min, and can be realized under this high-speed rotation by the signal of balance be delivered to outside controller in.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of rotary shaft balance dynamic loading device, including stand, be arranged on stand motor, be arranged on stand
The power output shaft of upper surface, the clutch end of the motor is connected on power output shaft by belt, described dynamic
One end of power output shaft is connected with dynamic loading device by rotary shaft balance, and the other end of power output shaft is connected by shaft coupling
It is connected on slip ring electrical feedthrough；
On the outer barrel of the dynamic loading device in vertical direction with counterweight, the dynamic are loaded in horizontal direction respectively
The outer barrel of loading device is provided with a set of rolling bearing, and the rotary shaft balance is connected with rolling bearing；
Signal wire, one end of signal wire and the balance being arranged in dynamic loading device are provided with the rotary balance axle
Sliding contact, the other end of signal wire after power output shaft with slip ring electrical feedthrough by being connected.
In the above-mentioned technical solutions, the clutch end of the motor is big belt wheel, and one end of power output shaft is
Small pulley, the belt is connected in big belt wheel and small pulley.
In the above-mentioned technical solutions, the contact of signal wire is respectively arranged with the surface of two ends of rotary shaft balance
A signal wire is connected between point, two contact points
In the above-mentioned technical solutions, wire casing is provided with the power output shaft, the signal wire is arranged in wire casing.
In the above-mentioned technical solutions, it is provided with three wire casings, each wire casing and is provided with the power output shaft
Signal wire all the way.
In the above-mentioned technical solutions, connecing for three signal wires is respectively arranged with the surface of two ends of rotary shaft balance
Contact, two corresponding contact points connect a signal wire.
In the above-mentioned technical solutions, the contact point of described rotary shaft balance one end and balance sliding contact, power output shaft
The other end and slip ring electrical feedthrough sliding contact.
Compared with prior art, the beneficial effects of the invention are as follows：
Which solves the problem of state's inner rotary shaft balance loading, the precision of rotary shaft balance measurement is improved, is filled out
The blank of domestic association area is mended.
Contrasted with same kind of products at abroad, more preferably, using more convenient, maintenance cost is low for efficiency-cost ratio.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Wherein：1 is stand, and 2 be dynamic load scale pan, and 3 be dynamic loading device, and 4 be rotary shaft balance, and 5 be power
Output shaft, 6 be small pulley, and 7 be belt, and 8 be shaft coupling, and 9 be slip ring electrical feedthrough, and 10 be big belt wheel, and 11 be motor, and 12 are
Stand wheel, 13 be jacking screw rod, and 14 be loading directive wheel.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in figure 1, in order to ensure balance can normally be run, it is necessary to have the stand for playing a supportive role, stand
It is welded using rectangle steel, stand not only plays a part of, for supporting balance, also acting as fixed support driving balance
The dynamical system of rotation.
A motor is fixed with stand, motor is used to provide power output, by big belt wheel by power
By on belt transport to small pulley, and small pulley is connected with power output shaft, so that the power output band for passing through motor
Dynamic power output shaft is rotated.
Balance uses rotary shaft balance in the present invention, and one end of power output shaft is connected to by rotary shaft balance
In dynamic loading device, the power output shaft other end is connected to slip ring by shaft coupling and printed on electrical equipment.The dynamic loading device
Including an outer barrel, by rolling bearing and rotary shaft day flushconnection in outer barrel, the outer barrel and the rotation being connected with outer barrel
Axle balance in its natural state with plane-parallel.The load(ing) point for being provided with both direction, a side are connected with outer barrel surface
Dynamic load scale pan is connected to the direction vertical with outer barrel horizontal positioned, it is loaded in vertical direction；Another will
The end connection of dynamic load scale pan and outer barrel, is loaded in the horizontal direction by loading directive wheel to its outer barrel.Work as rotation
Rotating shaft balance can measure the data in both direction in rotation process by loading.
Rotary shaft balance is freely rotated in outer barrel, thus the power applied on outer barrel need it is defeated by balance by signal wire
Go out, the point that balance is contacted with dynamic loading device is exactly the test point of balance, in order to ensure to rotate in rotary shaft balance
During signal can export, it is therefore desirable to set groove to cause the gentle power of rotary shaft day inside the balance and inside power output shaft
Output shaft is hollow shaft, and signal wire is laid out of groove so that signal wire and power output shaft and rotary shaft balance are rotated together.
And in rotary shaft balance table setting signal test point, signal wire is connected with signal testing point.In the other end of power output, in order to
Signal in signal wire is passed, signal testing point, each signal testing are also equipped with the surface of power output shaft
A signal testing point on point corresponding rotation axle balance, this end that then power output shaft has signal testing point passes through shaft coupling
It is connected with slip ring electrical feedthrough, power output shaft is ceaselessly rotated in rotation process by shaft coupling in slip ring electrical feedthrough
Rotating signal is changed into spacing wave, slip ring electrical feedthrough will not be driven to rotate in rotation process, and signal testing point and cunning
Ring electrical feedthrough is directly contacted, and is passed signal by slip ring electrical feedthrough.
In whole system running, the gentle power output shaft of only rotary shaft day of actual rotation, by driving electricity
The driving of machine enables whole rotary shaft balance to reach 10000 revs/min, and then it is added by dynamic loading device
Carry different counterweights so that rotary shaft balance can be tested in the small test index of dynamic environment.
The driving of the rotary shaft balance of the present invention is realized by belt transmission, can reduce motor whirling vibration to balance
Influence, it is adaptable to which precision rotation measurement part drives.Using frequency control motor, it is possible to achieve under rotary shaft balance different rotating speeds
The requirement of loading, it is ensured that the measurement range of balance；Using the power output shaft with bearing, output and the letter of power ensure that
The transmission of number line；The use of slip ring electrical feedthrough, it is ensured that rotating signal is transmitted, prevents balance signal from disturbing；Using built-in bearing
Dynamic load cylinder, it is ensured that apply stable rotating signal to balance；Dynamic load counterweight uses locking mechanism, it is ensured that
Counterweight will not be shaked out under shock and vibration；Package unit uses human engineering optimization design, facilitates the operations such as counterweight plus-minus.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (7)
1. a kind of rotary shaft balance dynamic loading device, it is characterised in that including stand, the motor being arranged on stand, set
The power output shaft in stand upper surface is put, the clutch end of the motor is connected to power output shaft by belt
On, one end of the power output shaft is connected with dynamic loading device by rotary shaft balance, and the other end of power output shaft leads to
Shaft coupling is crossed to be connected on slip ring electrical feedthrough；
On the outer barrel of the dynamic loading device in vertical direction with counterweight, the dynamic load are loaded in horizontal direction respectively
The outer barrel of device is provided with a set of rolling bearing, and the rotary shaft balance is connected with rolling bearing；
Signal wire is provided with the rotary balance axle, one end of signal wire and the balance being arranged in dynamic loading device are slided
Contact, the other end of signal wire after power output shaft with slip ring electrical feedthrough by being connected.
2. a kind of rotary shaft balance dynamic loading device according to claim 1, it is characterised in that the motor
Clutch end is big belt wheel, and one end of power output shaft is small pulley, and the belt is connected in big belt wheel and small pulley.
3. a kind of rotary shaft balance dynamic loading device according to claim 1, it is characterised in that the rotary shaft balance
A piece signal wire of connection between the contact point of signal wire, two contact points is respectively arranged with the surface of two ends.
4. a kind of rotary shaft balance dynamic loading device according to claim 3, it is characterised in that the power output shaft
Wire casing is inside provided with, the signal wire is arranged in wire casing.
5. a kind of rotary shaft balance dynamic loading device according to claim 4, it is characterised in that the power output shaft
Inside it is provided with three wire casings, each wire casing and is provided with signal wire all the way.
6. a kind of rotary shaft balance dynamic loading device according to claim 5, it is characterised in that in rotary shaft balance two
The contact point of three signal wires is respectively arranged with the surface of individual end, two corresponding contact points connect a signal wire.
7. according to a kind of any described rotary shaft balance dynamic loading device of claim 3~6, it is characterised in that the rotation
The contact point of axle balance one end and balance sliding contact, the other end and the slip ring electrical feedthrough sliding contact of power output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621251217.0U CN206348127U (en) | 2016-11-22 | 2016-11-22 | A kind of rotary shaft balance dynamic loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621251217.0U CN206348127U (en) | 2016-11-22 | 2016-11-22 | A kind of rotary shaft balance dynamic loading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206348127U true CN206348127U (en) | 2017-07-21 |
Family
ID=59322470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621251217.0U Expired - Fee Related CN206348127U (en) | 2016-11-22 | 2016-11-22 | A kind of rotary shaft balance dynamic loading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206348127U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404342A (en) * | 2016-11-22 | 2017-02-15 | 中国空气动力研究与发展中心低速空气动力研究所 | Dynamic loading device for rotary shaft balance |
| CN112326113A (en) * | 2020-10-14 | 2021-02-05 | 中山大学 | Force measuring balance calibration system and method |
-
2016
- 2016-11-22 CN CN201621251217.0U patent/CN206348127U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404342A (en) * | 2016-11-22 | 2017-02-15 | 中国空气动力研究与发展中心低速空气动力研究所 | Dynamic loading device for rotary shaft balance |
| CN112326113A (en) * | 2020-10-14 | 2021-02-05 | 中山大学 | Force measuring balance calibration system and method |
| CN112326113B (en) * | 2020-10-14 | 2022-01-04 | 中山大学 | Force measuring balance calibration system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20170721 Termination date: 20181122 |