CN204740018U - Be used for fuel rod cavity measuring to measure aircraft nose - Google Patents
Be used for fuel rod cavity measuring to measure aircraft nose Download PDFInfo
- Publication number
- CN204740018U CN204740018U CN201520556817.7U CN201520556817U CN204740018U CN 204740018 U CN204740018 U CN 204740018U CN 201520556817 U CN201520556817 U CN 201520556817U CN 204740018 U CN204740018 U CN 204740018U
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- China
- Prior art keywords
- fuel rod
- rod cavity
- measurement
- described body
- measurement mechanism
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- Monitoring And Testing Of Nuclear Reactors (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a machinery measurement field, especially a be used for fuel rod cavity measuring to measure aircraft nose. Measure the aircraft nose including having the organism that can stretch into by the length gauge head in surveying the fuel rod cavity, be used for driving through transmission the power device of organism back -and -forth movement, be used for the cooperation the measuring device who is surveyed fuel rod cavity length is measured to the organism, be used for measuring the organism is right transmission's reaction force's force transducer, the displacement sensing apparatus is used for measuring measuring device with the relative displacement of organism to reach and surveyed fuel rod cavity length. The utility model discloses a set up the length gauge head and pass through the seesaw of elastomeric element drive measuring device on the organism, ingenious realization is measured the surplus cavity length of being surveyed the fuel rod when the nuclear fuel with in the fuel rod compresses tightly, has saved the technology step, simultaneously the utility model discloses a set up force transducer, ensured that the dynamics when at every turn compressing tightly the nuclear fuel in the fuel rod is unified, improved the work precision of device.
Description
Technical field
The utility model relates to a kind of mechanical measurement field, particularly a kind of measurement head measured for fuel rod cavity.
Background technology
When being filled into fuel rod, can there is space between nuclear fuel and nuclear fuel in nuclear fuel, this just needs operative installations to be compressed usually; Before fuel rod seals after filling in addition, the near ports measuring fuel rod is needed not fill the cavity length of nuclear fuel; In prior art, compressed by the nuclear fuel being filled into fuel rod, and carry out linear measure longimetry to the cavity of the non-filling part of fuel rod and be divided into two steps to carry out, this just makes the filling closing step too very complicated of fuel rod.
Utility model content
Goal of the invention of the present utility model is to overcome in prior art the problem being compressed by nuclear fuel and need the measurement of fuel rod cavity length separately to carry out, there is provided a kind of can compress nuclear fuel and the measurement head measured for fuel rod cavity measured fuel rod cavity length simultaneously, comprise
Body, described body comprises the length gauge head stretched out towards tested fuel rod, and described length gauge head is used for stretching in tested fuel rod cavity; When tested fuel rod is built with nuclear fuel, described length gauge head is used for nuclear fuel to compress.
Propulsion system, are seesawed for being controlled described body by gearing (namely near fuel rod with away from fuel rod);
Measurement mechanism, be positioned at above described body, the bottom of described measurement mechanism is connected with described body top movable, one end of described measurement mechanism has diameter and is greater than the pullover of the cavity diameter of tested fuel rod, the described pullover top being socketed in described length gauge head, during for measuring, (when both described length gauge head stretches in tested fuel rod cavity) props up on described tested fuel rod top, and the other end of described measurement mechanism is connected with described body by elastomeric element; Described elastomeric element be used for described pullover do not prop up tested fuel rod top time, allow described body drive described measurement mechanism move forward and backward
Force snesor, between described body and described gearing, for experiencing the reacting force of described body to described gearing; When described propulsion system drive described body constantly to move forward by described gearing (reach herein refers to that body moves to tested fuel rod direction), described length gauge head finally can prop up nuclear fuel in fuel rod and be compressed, now along with described body constantly advances, described force sensor senses continues to increase to the reacting force of described body to described gearing, when this reacting force reaches predetermined threshold value, described propulsion system control described body and halt.
Displacement sensing device, bottom described measurement mechanism and between described body top, for measuring the relative displacement of described measurement mechanism and described body, thus draw tested fuel rod cavity length, when described length gauge head starts to stretch into tested fuel rod, the pullover of described measurement mechanism one end props up on tested fuel rod top, after this described body moves on, until tested fuel rod center fuel compresses and halts by described length gauge head, the now relative displacement of described measurement mechanism and described body is tested fuel rod cavity length.
Further, described measurement head also comprises display device, and described display device is connected with described displacement sensing device, for display measurement result.
Preferably, described propulsion system are that motor or stepper motor are served in interchange.
Preferably, described gearing comprises worm-gear speed reducer and leading screw.
Preferably, described elastomeric element is spring.
Preferably, described displacement sensing device is steel belt grating displacement transducer.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
The described measurement head that the utility model provides comprises the body having the length gauge head that can stretch in tested fuel rod cavity; For the propulsion system being driven described body movable by gearing; For the measurement mechanism coordinating described body to measure tested fuel rod cavity length; For measuring the force snesor of described body to the reacting force of described gearing, displacement sensing device, for measuring the relative displacement of described measurement mechanism and described body, thus draw tested fuel rod cavity length.By arranging length gauge head and drive measurement mechanism to seesaw by elastomeric element on body, realize cleverly, while the nuclear fuel in fuel rod is compressed, measuring the residual cavity length of tested fuel rod, saving processing step; The utility model is by arranging force snesor simultaneously, has ensured that dynamics when at every turn compressing the nuclear fuel in fuel rod is unified, has improve the operating accuracy of device.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Mark in figure: 1-body, 11-length gauge head, 2-propulsion system, 3-measurement mechanism, 31-is pullover, 4-gearing, 5-displacement sensing device, 6-force snesor, 7-display device.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
embodiment 1 as shown in Figure 1 and Figure 2,goal of the invention of the present utility model is to overcome in prior art the problem being compressed by nuclear fuel and need the measurement of fuel rod cavity length separately to carry out, there is provided a kind of can compress nuclear fuel and the measurement head measured for fuel rod cavity measured fuel rod cavity length simultaneously, comprise
Body 1, comprises the length gauge head 11 stretched out towards tested fuel rod, and described length gauge head 11 is for stretching in tested fuel rod cavity; When tested fuel rod is built with nuclear fuel, described length gauge head 1 is for compressing nuclear fuel.
Propulsion system 24, are seesawed for being controlled described body 1 by gearing (namely near fuel rod with away from fuel rod);
Measurement mechanism 3, be positioned at above described body 1, the bottom of described measurement mechanism 3 is connected with described body 1 top movable, one end of described measurement mechanism 3 has diameter is greater than the cavity diameter of tested fuel rod pullover 31, described pullover 31 to be bent downwardly relative to measurement mechanism 3 body and to be socketed in the top of described length gauge head 11, during for measuring, (when both described length gauge head 11 stretches in tested fuel rod cavity) props up on tested fuel rod top, the other end of described measurement mechanism 3 has lug boss upwards, it is connected with described body 1 lug boss upwards by elastomeric element 32, described elastomeric element 32 is not for when described pullover 31 prop up tested fuel rod top, described body 1 is allowed to drive described measurement mechanism 3 movable (being now geo-stationary between described body 1 and described measurement mechanism 3), namely body 1 travel forward (point to tested fuel rod motion) time, before propping up tested fuel top described pullover 31, described body 1 drives described measurement mechanism 3 to travel forward by described elastomeric element 32, is geo-stationary between described body 1 and described measurement mechanism, and when described body 1 moves (away from tested fuel rod) backward, when described length gauge head 11 leaves tested fuel rod cavity, described pullover 31 also can leave tested fuel rod top, after this described body 1 drives described measurement mechanism 3 to move backward by described elastomeric element 32, and now same between described body 1 with described measurement mechanism 3 is geo-stationary.
Force snesor 6, between described body 1 and described gearing 4, for experiencing the reacting force of described body 1 to described gearing 4; When described propulsion system 2 drive described body 1 constantly to move forward by described gearing 4 (reach herein refers to that body 1 moves to tested fuel rod direction), described length gauge head 11 finally can prop up nuclear fuel in fuel rod and be compressed, now along with described body 1 constantly advances, described force snesor 6 senses the reacting force of described body 1 to described gearing 4 and continues to increase, when this reacting force reaches predetermined threshold value, described propulsion system 2 control described body 1 and halt.
Displacement sensing device 5, bottom described measurement mechanism 3 and between described body 1 top, for measuring the relative displacement of described measurement mechanism 3 and described body 1, thus draw tested fuel rod cavity length, when described length gauge head 11 starts to stretch into tested fuel rod, pullover 31 of described measurement mechanism 3 one end props up on tested fuel rod top, after this described body 1 moves on, until tested fuel rod center fuel compresses and halts by described length gauge head 11, now described measurement mechanism 3 is tested fuel rod cavity length with the relative displacement of described body 1.
Further, described measurement head also comprises display device 7, described display device is connected with described displacement sensing device 5, for display measurement result, described display device 7 can be arranged on the position that described measurement head facilitates reading as required, as described in the top of body 1 or institute's displacement measurement device 3, or the side of described body 1, or the side of institute's displacement measurement device 3, or described propulsion system 2 above or side etc.
Preferably, described propulsion system 2 serve motor or stepper motor for interchange.
Preferably, described gearing 4 comprises worm-gear speed reducer and leading screw.
Preferably, described elastomeric element 32 is spring or extension spring.
Preferably, described displacement sensing device 5 is steel belt grating displacement transducer.
Be pointed out that, the utility model provides the fuel rod cavity of confession to measure head in use, identical platform plane should be positioned over described fuel rod simultaneously, and described length gauge head 11 and the horizontal aligument of tested fuel rod cavity (advance with described length gauge head level and can enter tested fuel rod cavity and be as the criterion).
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1., for the measurement head that fuel rod cavity is measured, it is characterized in that, comprise,
Body, described body comprises the length gauge head stretched out towards tested fuel rod, and described length gauge head is used for stretching in tested fuel rod cavity;
Propulsion system, are seesawed for being controlled described body by gearing;
Measurement mechanism, be positioned at above described body, the bottom of described measurement mechanism is connected with described body top movable, one end of described measurement mechanism has diameter and is greater than the pullover of the cavity diameter of tested fuel rod, the described pullover top being socketed in described length gauge head, be against described tested fuel rod top during for measuring, the other end of described measurement mechanism is connected with described body by elastomeric element;
Force snesor, between described body and described gearing, for experiencing the reacting force of described body to described gearing;
Displacement sensing device, bottom described measurement mechanism and between described body top, for measuring the relative displacement of described measurement mechanism and described body, thus draws tested fuel rod cavity length.
2. the measurement head measured for fuel rod cavity according to claim 1, it is characterized in that, described measurement head also comprises display device, and described display device is connected with described displacement sensing device, for display measurement result.
3. the measurement head measured for fuel rod cavity according to claim 1, it is characterized in that, described propulsion system are that motor or stepper motor are served in interchange.
4. the measurement head measured for fuel rod cavity according to claim 1, it is characterized in that, described gearing comprises worm-gear speed reducer and leading screw.
5. the measurement head measured for fuel rod cavity according to claim 1, it is characterized in that, described elastomeric element is spring.
6. the measurement head measured for fuel rod cavity according to claim 1, it is characterized in that, described displacement sensing device is steel belt grating displacement transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520556817.7U CN204740018U (en) | 2015-07-29 | 2015-07-29 | Be used for fuel rod cavity measuring to measure aircraft nose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520556817.7U CN204740018U (en) | 2015-07-29 | 2015-07-29 | Be used for fuel rod cavity measuring to measure aircraft nose |
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| Publication Number | Publication Date |
|---|---|
| CN204740018U true CN204740018U (en) | 2015-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520556817.7U Expired - Fee Related CN204740018U (en) | 2015-07-29 | 2015-07-29 | Be used for fuel rod cavity measuring to measure aircraft nose |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959336A (en) * | 2017-12-26 | 2019-07-02 | 中核建中核燃料元件有限公司 | A kind of cavity measuring motion |
-
2015
- 2015-07-29 CN CN201520556817.7U patent/CN204740018U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959336A (en) * | 2017-12-26 | 2019-07-02 | 中核建中核燃料元件有限公司 | A kind of cavity measuring motion |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151104 Termination date: 20190729 |
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| CF01 | Termination of patent right due to non-payment of annual fee |