CN206269964U - It is a kind of for indirectly testing shafting torsional rigidity and the fixed rack of mode device - Google Patents
It is a kind of for indirectly testing shafting torsional rigidity and the fixed rack of mode device Download PDFInfo
- Publication number
- CN206269964U CN206269964U CN201621232234.XU CN201621232234U CN206269964U CN 206269964 U CN206269964 U CN 206269964U CN 201621232234 U CN201621232234 U CN 201621232234U CN 206269964 U CN206269964 U CN 206269964U
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- China
- Prior art keywords
- axle
- measured
- torsional rigidity
- fixed rack
- shafting torsional
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Abstract
It is a kind of for indirectly testing shafting torsional rigidity and the fixed rack of mode device, be related to rigidity and mould measurement field.The device of the indirectly testing shafting torsional rigidity and mode, quality disk is also bonded with the free end of axle to be measured, relative both sides are also bonded with additional square respectively on the side arm of axle to be measured, acceleration transducer is installed on additional square, the device is easily achieved, simple operation, and measuring accuracy is high, the blank in shafting torsional rigidity and mould measurement field has been filled up.
Description
Technical field
The utility model is related to rigidity and mould measurement field, more particularly to a kind of to be used for indirectly testing shafting torsional rigidity
With the fixed rack of mode device.
Background technology
Twisting vibration（Abbreviation torsional oscillation）Be shafting in rotary course due to dynamic excitation torque and itself elasticity of torsion power
The uneven and circumferential alternate motion that produces.In the machinery equipment with shafting transmission such as automobile, ship, torsional oscillation is to cause to make an uproar
The main contributor of acoustic vibration problems.Torsional oscillation has greatly destructive, the fatigue damage as increased shafting, reduces service life,
Serious torsional oscillation can cause shafting to damage or be broken.Existing apparatus are due to more complicated, it is necessary to be sensed using foil gauge, laser displacement
The precision instrument such as device or angular acceleration transducer could be measured, therefore cost is higher, operation inconvenience.
The content of the invention
In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of for the torsion of indirectly testing shafting
The fixed rack of rigidity and mode device, it is its simple structure, easy to operate, and testing precision is high.
The technical scheme that the utility model is used is：It is a kind of for indirectly testing shafting torsional rigidity and mode device
Fixed rack, is characterized in that：It is made up of rack base, stand support arm and triangle chuck, is welded with rack base
Stand support arm, the top of stand support arm is welded with triangle chuck, and one end of triangle chuck is plugged with test axle, in axle to be measured
Free end be also bonded with quality disk, relative both sides are also bonded with additional square respectively on the side wall of axle to be measured, attached
Plus acceleration transducer is installed on square.
The beneficial effects of the utility model are：This is used for the fixed station of indirectly testing shafting torsional rigidity and mode device
Frame, quality disk is also bonded with the free end of axle to be measured, and relative both sides are also bonded with attached respectively on the side arm of axle to be measured
Plus square, acceleration transducer is installed on additional square, the device is easily achieved, simple operation, and measuring accuracy is high, fills up
The blank of shafting torsional rigidity and mould measurement field.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Needed for the accompanying drawing to be used be briefly described, it should be apparent that, drawings in the following description are only of the present utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is that the general construction of the device of indirectly testing shafting torsional rigidity and mode in the utility model embodiment is illustrated
Figure；
Fig. 2 is the structural representation of fixed rack in the utility model embodiment；
Fig. 3 is the top view of fixed rack in the utility model embodiment；
Number explanation is as follows in figure：1 computer, 2 gain amplifiers, 3 analog/digital conversion plates, 4 power hammer, 5 additional squares, 6 are treated
Survey axle, 7 acceleration transducers, 8 fixed racks, 801 rack bases, 802 stand support arms, 803 triangle chucks, 9 mass disks.
Specific embodiment
Enable above-mentioned purpose of the present utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings 1~Fig. 3
The utility model is described in further detail with specific embodiment.
Indirectly testing shafting torsional rigidity and the device of mode that the present embodiment is used, as shown in figure 1, being passed including acceleration
Sensor 7, analog/digital conversion plate 3, gain amplifier 2, computer 1, axle to be measured 6, additional square 5 and power hammer 4.Wherein, acceleration is passed
Sensor 7 is used to gather on axle to be measured 6 acceleration signal of additional square 5 and be converted into voltage signal；Power hammer 4 is used to encourage
Axle to be measured 6 produces modal vibration simultaneously to produce corresponding voltage signal according to exciting force size, should be according to axial wood matter to be measured, weight
The different power hammer tup of different choice hardness, including aluminum, plastics and rubber tup, the foundation of selection are power hammer signals from work(
The attenuation that rate composes at highest frequency is no more than 10 decibels；Analog/digital conversion plate 3 is used for producing power hammer 4 and acceleration transducer 7
Raw voltage analog signal is converted to the recognizable data signal of computer 1；Gain amplifier 2 is used for putting data signal
Big and noise filtering；Computer 1 carries out computing as controller to above-mentioned treated signal.Quality circle in the present embodiment
Disk, its quality and rotary inertia are, it is known that structure and mass property for changing axle to be measured.
The connection of each part of fixed rack 8 in the present embodiment is as follows：
Fixed rack 8 is made up of rack base 801, stand support arm 802 and scroll chuck 803, in rack base 801
Stand support arm 802 is welded with, the top of stand support arm 802 is welded with triangle chuck 803, and one end of triangle chuck 803 is inserted
Axle to be measured 6 is connected to, quality disk 9 is also bonded with the free end of axle to be measured 6, relative both sides are also on the side arm of axle to be measured 6
Additional square 5 is bonded with respectively, acceleration transducer 7 is installed on additional square 5, as shown in Figures 2 and 3.
One data input pin of the output end connection analog change-over panel 3 of acceleration transducer 7, the output end of power hammer 4 connects
Another data input pin of analog/digital conversion plate 3 is connect, the output end of analog/digital conversion plate 3 is sequentially connected the He of gain amplifier 2 again
Computer 1.
During actual test, one end of axle to be measured is fixed on fixed rack；2 additional squares are bonded using structure glue
On axle to be measured, 2 acceleration transducers are bonded in 2 both sides up and down of additional square respectively.
To ensure the precision and uniformity of test result, the temperature of test environment, humidity, atmospheric pressure level should keep steady
It is fixed, around without electromagnetic interference and ambient noise should be less than 36 decibels.
Although the foregoing describing specific embodiment of the present utility model, those skilled in the art in the art should
Work as understanding, these are merely illustrative of, various changes or modifications can be made to these implementation methods, it is new without departing from this practicality
The principle and essence of type.Scope of the present utility model is only limited by the claims that follow.
Claims (1)
1. a kind of for indirectly testing shafting torsional rigidity and the fixed rack of mode device, it is characterised in that：By rack base,
Stand support arm and triangle chuck are constituted, and stand support arm is welded with rack base, and the top of stand support arm is welded with
Triangle chuck, one end of triangle chuck is plugged with axle to be measured, and quality disk is also bonded with the free end of axle to be measured, in axle to be measured
Side wall on relative both sides be also bonded with additional square respectively, acceleration transducer is installed on additional square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621232234.XU CN206269964U (en) | 2016-11-17 | 2016-11-17 | It is a kind of for indirectly testing shafting torsional rigidity and the fixed rack of mode device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621232234.XU CN206269964U (en) | 2016-11-17 | 2016-11-17 | It is a kind of for indirectly testing shafting torsional rigidity and the fixed rack of mode device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206269964U true CN206269964U (en) | 2017-06-20 |
Family
ID=59040853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621232234.XU Expired - Fee Related CN206269964U (en) | 2016-11-17 | 2016-11-17 | It is a kind of for indirectly testing shafting torsional rigidity and the fixed rack of mode device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206269964U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112729818A (en) * | 2021-02-04 | 2021-04-30 | 北京理工大学 | Testing device and method for torsional vibration modal test of gear box |
-
2016
- 2016-11-17 CN CN201621232234.XU patent/CN206269964U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112729818A (en) * | 2021-02-04 | 2021-04-30 | 北京理工大学 | Testing device and method for torsional vibration modal test of gear box |
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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 |
Granted publication date: 20170620 Termination date: 20211117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |