CN203259332U - Measurement clamp and measurement apparatus - Google Patents
Measurement clamp and measurement apparatus Download PDFInfo
- Publication number
- CN203259332U CN203259332U CN 201320035938 CN201320035938U CN203259332U CN 203259332 U CN203259332 U CN 203259332U CN 201320035938 CN201320035938 CN 201320035938 CN 201320035938 U CN201320035938 U CN 201320035938U CN 203259332 U CN203259332 U CN 203259332U
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- measured
- hemizonid
- measurement
- supporting piece
- elastic supporting
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model provides a measurement clamp and a measurement apparatus. The measurement clamp comprises a first semicircular body, a second semicircular body and a fastener, wherein the fastener is used for connecting and combining the first and second semicircular bodies, the first and second semicircular bodies combine to form a shaft hole together, and the first semicircular body is provided with a to-be-measured platform. On the other hand, the utility model also provides the measurement apparatus comprising a to-be-measured elastic supporting piece, a displacement measurement sensor and the above measurement clamp. A first end of the to-be-measured elastic supporting piece is sleeved on the measurement clamp. The displacement measurement sensor is mounted on the to-be-measured platform. According to the measurement apparatus provided by the utility model, the measurement clamp and the to-be-measured elastic supporting piece are carried out radial interference fit, so that precision of the measurement apparatus is improved. The displacement measurement sensor converts mechanical displacement to electric signals and outputs the electric signals. Reliability is good and precision is relatively high.
Description
Technical field
The utility model relates to the aeromotor field, especially, relates to a kind of measured material.In addition, the utility model also relates to a kind of measurement mechanism that comprises above-mentioned measured material.
Background technology
More modern aeroengine adopts the mouse cage elastic bearing to adjust and control critical rotary speed and reduces the vibration of rotor system amount, the rigidity value of the elastic supporting piece that adopts in the engine rotor is generally lower, and this rigidity value has considerable influence to the critical rotary speed of rotor-support-foundation system, therefore needs by the flexibly mounted rigidity value of research technique Measurement accuracy.Normally, the rigidity of this elastic supporting piece can use the Related Formula approximate treatment of the mechanics of materials to draw, also can utilize modern advanced finite element software to calculate, what all use is the Theoretical Design size of elastic supporting piece but the shortcoming of these two kinds of methods is its computation models, do not consider the error that the factors such as processing, material cause, thereby cause computational solution precision lower, can't satisfy Aeroengine Design to the accuracy requirement of elastic supporting rigidity value.
The utility model content
The utility model purpose is to provide a kind of measured material and measurement mechanism, and is lower with the precision of the rigidity value that solves existing elastic supporting piece, can't satisfy the aircraft engine rotor system design to the technical matters of the accuracy requirement of elastic supporting piece rigidity value.
For achieving the above object, according to an aspect of the present utility model, provide a kind of measured material, comprised the first hemizonid and the second hemizonid, connected the securing member that merges first and second hemizonid, first and second hemizonid merges the common axis hole that forms; The first hemizonid is provided with platform to be measured, and the second hemizonid is provided with hangs the hole, platform to be measured and hang the hole and be oppositely arranged.
Further, the first hemizonid is semicircle shape; The two ends of first and second hemizonid radially outwards are provided with respectively lug; Securing member connects lug with the fixing merging of first and second hemizonid.
Further, axis hole is step-like endoporus, and the first end of axis hole is provided with mating surface, and the second end of axis hole is provided with the shaft shoulder.
According on the other hand of the present utility model, a kind of measurement mechanism also is provided, it comprises elastic supporting piece to be measured and displacement measurement sensor and above-mentioned measured material; The first end of elastic supporting piece to be measured is set in measured material, hangs the hole straight down, platform to be measured and hang the hole positioned opposite; Displacement measurement sensor is installed on the top of platform to be measured.
Further, measurement mechanism also comprises fixing measurement bearing, and the second end of elastic supporting piece to be measured is anchored on to be measured on the bearing.
Further, the mating surface interference fit of the outer ring surface of the first end of elastic supporting piece to be measured and measured material, the end axis of elastic supporting piece to be measured is to being closely against the shaft shoulder.
The utlity model has following beneficial effect: measured material of the present utility model, its first and second hemizonid, the common axis hole that forms of merging, and by securing member locking, simple in structure, easy to use.In addition, measurement mechanism of the present utility model, its measured material and elastic supporting piece radial interference fit to be measured have improved the precision of measurement mechanism, and simultaneously, displacement measurement sensor converts mechanical shift to electric signal output, good reliability, precision is higher.
Except purpose described above, feature and advantage, the utility model also has other purpose, feature and advantage.The below is described in further detail the utility model with reference to figure.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the measured material of the utility model preferred embodiment;
Fig. 2 is the axis hole cross-sectional schematic of the utility model preferred embodiment; And
Fig. 3 is the measurement mechanism synoptic diagram of the utility model preferred embodiment.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Referring to Fig. 1, the utility model provides a kind of measured material 12, and it comprises the first hemizonid 1 and the second hemizonid 2, connect to merge first and second hemizonid 1,2 securing member 3, and first and second hemizonid 1,2 merges the common axis hole 120 that forms.Wherein, the first hemizonid 1 is provided with platform 10, the second hemizonids 2 to be measured and is provided with and hangs hole 20, platform 10 to be measured and hang hole 20 and be oppositely arranged.In the present embodiment, securing member 3 is bolts.
The first hemizonid 1 is semicircle shape, and its two free end radially outward is convexly equipped with respectively a lug 11.Each lug 11 is provided with a mounting hole 110.The opposite end of the second hemizonid 2 radially outward is convexly equipped with respectively a lug 21.Each lug 21 is provided with a mounting hole 210.
During installation, securing member 3 passes mounting hole 110,210, and so that this first and second hemizonid 1,2 is fixed together, at this moment, first and second hemizonid 1,2 has formed axis hole 120 jointly.
Referring to Fig. 2, axis hole 120 is step-like endoporus, and its first end is the higher mating surface of machining precision 121, and its second end is provided with the shaft shoulder 122, is used for the axial location that is tight against.
Referring to Fig. 3, the utility model also provides a kind of measurement mechanism that comprises above-mentioned measured material 12, and it also comprises elastic supporting piece 4 to be measured, measurement bearing 5 and the displacement measurement sensor 6 fixed.Wherein, elastic supporting piece 4 to be measured is the tubular structure of squirrel-cage.
During installation, the first end of elastic supporting piece 4 to be measured is set in the measured material 12, and with securing member 3 locking, at this moment, hangs hole 20 straight down, platform 10 to be measured with hang hole 20 positioned opposite.Wherein, mating surface 121 interference fit of the outer ring surface of the first end of elastic supporting piece 4 to be measured and measured material 12, and the end axis of elastic supporting piece 4 to be measured is to being closely against on the shaft shoulder 122, satisfied radial and axial location, simultaneously, when measured material 12 load-bearing were out of shape, the transmission of power was so that elastic supporting piece to be measured 4 also produces consistent deflection thereupon, thereby improved the measuring accuracy of whole measurement mechanism.The second end of elastic supporting piece 4 to be measured by screw fastening in measuring on the bearing 5.Displacement measurement sensor 6 is installed on the top of the platform to be measured 10 of measured material 12, and maintains a certain distance.
During test, will load counterweight and put into container, and container is hung on hangs on the hole 20, displacement measurement sensor 6 converts the straight line mechanical shift of the distortion of elastic supporting piece 4 to be measured to electric signal output.Add weight again, output electrical signals so repeatedly, obtains a plurality of electric signal correspondences again.By equipment a plurality of electric signal are converted to corresponding numerical value at last, retouch out curve according to numerical value, this slope of a curve is the rigidity value of elastic supporting piece 4 to be measured.
Measured material 12 of the present utility model, its first and second hemizonid 1,2 merge the common axis hole 120 that forms, and by securing member 3 lockings, simple in structure, easy to use.In addition, measurement mechanism of the present utility model, its measured material 12 and elastic supporting piece to be measured 4 radial interference fit have improved the precision of measurement mechanism, and simultaneously, displacement measurement sensor 6 converts mechanical shift to electric signal output, good reliability, precision is higher.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. measured material, it is characterized in that, comprise: the first hemizonid (1) and the second hemizonid (2), connect the securing member (3) that merges described first and second hemizonid (1,2), described first and second hemizonid (1,2) merges the common axis hole (120) that forms;
Described the first hemizonid (1) is provided with platform to be measured (10), and described the second hemizonid (2) is provided with hangs hole (20), and described platform to be measured (10) and the described hole (20) of hanging are oppositely arranged.
2. measured material according to claim 1 is characterized in that, described the first hemizonid (1) is semicircle shape;
The two ends of described first and second hemizonid (1,2) radially outwards are provided with respectively lug (11,21);
Described securing member (3) connects described lug (11,21) with the fixing merging of described first and second hemizonid (1,2).
3. measured material according to claim 2 is characterized in that, described axis hole (120) is step-like endoporus, and the first end of described axis hole (120) is provided with mating surface (121), and the second end of described axis hole (120) is provided with the shaft shoulder (122).
4. a measurement mechanism is characterized in that, comprises the described measured material of any one (12) in elastic supporting piece to be measured (4) and displacement measurement sensor (6) and the claims 1 to 3;
The first end of described elastic supporting piece to be measured (4) is set in described measured material (12), describedly hangs hole (20) straight down, described platform to be measured (10) and described hole (20) positioned opposite of hanging;
Described displacement measurement sensor (6) is installed on the top of described platform to be measured (10).
5. measurement mechanism according to claim 4 is characterized in that, described measurement mechanism also comprises fixing measurement bearing (5), and the second end of described elastic supporting piece to be measured (4) is anchored on the described measurement bearing (5).
6. measurement mechanism according to claim 4, it is characterized in that, mating surface (121) interference fit of the outer ring surface of the first end of described elastic supporting piece to be measured (4) and described measured material (12), the end axis of described elastic supporting piece to be measured (4) is to the shaft shoulder that is closely against described axis hole (120) (122).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320035938 CN203259332U (en) | 2013-01-23 | 2013-01-23 | Measurement clamp and measurement apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320035938 CN203259332U (en) | 2013-01-23 | 2013-01-23 | Measurement clamp and measurement apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203259332U true CN203259332U (en) | 2013-10-30 |
Family
ID=49471885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320035938 Expired - Lifetime CN203259332U (en) | 2013-01-23 | 2013-01-23 | Measurement clamp and measurement apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203259332U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812694A (en) * | 2017-03-23 | 2017-06-09 | 上海工程技术大学 | The detection means and method of the radial displacement of three screw pump discharge chamber driven screw |
| CN109556811A (en) * | 2018-12-03 | 2019-04-02 | 南京航空航天大学 | A kind of big rigidity mouse cage Static stiffness test device and test method |
| CN109883631A (en) * | 2019-03-25 | 2019-06-14 | 中国航发湖南动力机械研究所 | Stiffness measurement device |
-
2013
- 2013-01-23 CN CN 201320035938 patent/CN203259332U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812694A (en) * | 2017-03-23 | 2017-06-09 | 上海工程技术大学 | The detection means and method of the radial displacement of three screw pump discharge chamber driven screw |
| CN106812694B (en) * | 2017-03-23 | 2018-10-16 | 上海工程技术大学 | The detection device and method of the radial displacement of chamber driven screw is discharged in three screw pump |
| CN109556811A (en) * | 2018-12-03 | 2019-04-02 | 南京航空航天大学 | A kind of big rigidity mouse cage Static stiffness test device and test method |
| CN109883631A (en) * | 2019-03-25 | 2019-06-14 | 中国航发湖南动力机械研究所 | Stiffness measurement device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131030 |
|
| CX01 | Expiry of patent term |