CN203981160U - Pipeline inner circle sectional area measurement mechanism - Google Patents
Pipeline inner circle sectional area measurement mechanism Download PDFInfo
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- CN203981160U CN203981160U CN201420194932.XU CN201420194932U CN203981160U CN 203981160 U CN203981160 U CN 203981160U CN 201420194932 U CN201420194932 U CN 201420194932U CN 203981160 U CN203981160 U CN 203981160U
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- sectional area
- inner circle
- measurement mechanism
- connecting link
- pipeline
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- 238000005259 measurement Methods 0.000 title claims abstract description 72
- 230000007246 mechanism Effects 0.000 title claims abstract description 38
- 238000006073 displacement reaction Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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Abstract
The utility model provides a kind of pipeline inner circle sectional area measurement mechanism, comprises inner diameter measurement portion, and described inner diameter measurement portion comprises connecting link; Be separately positioned on two ends of described connecting link and the expansion link that can reciprocatingly slide along described connecting link length direction; Be arranged on the electronic ruler sensor on described connecting link, it is configured to the displacement of expansion link described in sensing.Pipeline inner circle sectional area measurement mechanism of the present utility model, can measure easily the inner circle sectional area of existing pipeline, the inner circle sectional area of the on-the-spot industrial pipeline of particularly having installed, provides accurately parameter to improve flow measurement precision to flow instrumentation.
Description
Technical field
The utility model belongs to measurement instrument field, particularly a kind of pipeline inner circle sectional area measurement mechanism.
Background technology
As shown in Figure 2, the flow detection of industrial pipeline adopts ultrasound wave or electromagnetic flowmeter conventionally, in need to arranging in the parameter of instrument, pipeline inner circle sectional area is set and just can completes flow detection.At present, the method for calculating pipeline inner circle sectional area is, according to pipe diameter and internally coated thickness, first calculates diameter of a circle in pipeline, as shown in Figure 1, then according to area formula of circle, calculates the sectional area of pipeline inner circle.But, due to the manufacturing issue of pipeline, often there is larger dimensional discrepancy, the inwall of some pipeline coating is irregularly shaped, and the interior circular section that causes pipeline is irregular inner circle, and the sectional area error of now calculating according to canonical parameter is larger.The larger parameter of this error is arranged in instrument, can causes actual cumulative errors larger.There is no at present effectively to measure at the scene the technical scheme of industrial pipeline inner circle sectional area.
Utility model content
For this reason, the utility model provides a kind of pipeline inner circle sectional area measurement mechanism, comprises inner diameter measurement portion, and described inner diameter measurement portion comprises: connecting link; Be separately positioned on two ends of described connecting link and the expansion link that can reciprocatingly slide along described connecting link length direction; Be arranged on the electronic ruler sensor on described connecting link, it is configured to the displacement of expansion link described in sensing.
Further, described measurement mechanism also comprises measurement of angle portion, and described measurement of angle portion comprises angular transducer, and it is configured to the anglec of rotation of connecting link described in sensing.
Further, described measurement mechanism also comprises rotary driving part, and described rotary driving part comprises the rotating shaft being vertically fixedly connected with the middle part of described connecting link and is fixed to the motor that is configured to drive described rotating shaft rotation of described rotating shaft.
Further, described rotary driving part also comprises transmission gear.
Further, described measurement mechanism also comprises support fixed part, and described support fixed part comprises: the fixed cover that is shaped as tubular; One end be arranged on the outer wall of described fixed cover and the other end respectively from outward extending four fixing feet of described fixed cover; Be arranged at respectively the level indicator at the position of the close described fixed cover in fixing feet described in each; Be arranged at respectively the free terminal of fixing feet described in each and the holder being connected with described fixing feet by bolt, distance between described holder and described fixing feet regulates by described bolt, wherein, described in each fixing feet comprise in the middle make described fixing feet can be from middle part folding fold mechanism downwards.
Preferably, described holder is made by magnetic material.
Further, described support fixed part also comprises: fixed bar, and its one end is provided with and can holds the through hole that described rotating shaft is passed through, and its other end passes and is connected in described fixed cover; And locking cap, it is fixed the connection between described fixed cover and described fixed bar.
Preferably, the number of described inner diameter measurement portion is a plurality of, and described in each, the range of inner diameter measurement portion is different.
Preferably, described rotating shaft is detachable with being fixedly connected with of described connecting link.
The pipeline inner circle sectional area measurement mechanism the utility model proposes, can automatically complete the diameter measurement of circular section all angles in pipeline, thereby can measure easily the inner circle sectional area of existing pipeline, the inner circle sectional area of the on-the-spot industrial pipeline of particularly having installed, provides accurately parameter to improve flow detection precision to flow instrumentation.
Accompanying drawing explanation
Fig. 1 is the cross section structure schematic diagram of industrial pipeline;
Fig. 2 is the schematic diagram of flowmeter survey pipeline flow;
Fig. 3 is the front elevation of the part-structure preferred embodiment of pipeline inner circle sectional area measurement mechanism of the present utility model;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the vertical view of the part-structure preferred embodiment of pipeline inner circle sectional area measurement mechanism of the present utility model;
Fig. 6 is the front elevation of showing in cut-open view mode preferred embodiment of pipeline inner circle sectional area measurement mechanism of the present utility model;
The subregion of the left view that Fig. 7 is Fig. 6 of showing in cut-open view mode;
The left view that Fig. 8 is Fig. 6 of showing in cut-open view mode.
Embodiment
Below in conjunction with the drawings and specific embodiments, pipeline inner circle sectional area measurement mechanism of the present utility model is described in further detail, but not as to restriction of the present utility model.
In a preferred embodiment, pipeline inner circle sectional area measurement mechanism of the present utility model comprise a plurality of detachable and removable inner diameter measurement portions for circular diameter in measuring channel, for measuring the measurement of angle portion of the anglec of rotation of inner diameter measurement portion, for driving the rotary driving part of inner diameter measurement portion rotation and supporting fixed part.
With reference to Fig. 3 and Fig. 4, inner diameter measurement portion comprises connecting link, two expansion links and two electronic ruler sensors.Two expansion links are separately positioned on two ends of connecting link and can reciprocatingly slide along the length direction of connecting link by pulley.Two electronic ruler sensors are separately positioned on connecting link and for the displacement of sensing expansion link.
According to the common specification of tested pipeline, can design the inner diameter measurement portion of different ranges, to adapt to the measurement requirement of different internal diameter of the pipeline.Such as, can change the length of connecting link, or change the length of expansion link, to adapt to the internal diameter of the pipeline of different sizes.Because inner diameter measurement portion is dismountable with being connected of rotary driving part, when actual measurement, survey crew can select range ability contain the inner diameter measurement portion of internal diameter of the pipeline and be arranged on rotary driving part, can effectively complete measurement.
With reference to Fig. 4, measurement of angle portion comprises angular transducer, and this angular transducer is for the anglec of rotation of sensing connecting link, so that the interior circular diameter of measurement mechanism can record each anglec of rotation time.
With further reference to Fig. 4, rotary driving part comprises the rotating shaft that is used to provide motor, the transmission gear of rotary power and is transmitted gear driven and rotates by being fixedly connected with drive connecting link.Like this, when motor is opened, can, so that inner diameter measurement portion rotates along rotating shaft, at the different angles diameter of circular section in measuring channel respectively, thereby can obtain pipeline inner circle sectional area comparatively accurately by computational analysis.Preferably, in this embodiment, use two-stage transmission gear to drive rotating shaft to rotate, like this can be so that motor and rotating shaft, not at same height, arrange angular transducer with slot milling.
For by the diameter of measurement mechanism and measurement of angle partial fixing at pipe interior, this measurement mechanism also comprises support fixed part.As shown in Fig. 5 to Fig. 8, support fixed part and comprise fixed bar, fixed cover, four fixing feet, four level indicators, four holders, four bolts and four fold mechanisms.Wherein, fixed cover be shaped as tubular, one end of four fixing feet is fixedly installed on respectively on the outer wall of fixed cover, the other end extends to the direction of four quadratures in east, south, west, north in the plane of the axis perpendicular to described fixed cover respectively.In each fixing feet and the position that is close to fixed cover be provided with level indicator, at the free terminal of each fixing feet, be connected with holder, the distance between this holder and the fixing feet at place can regulate by bolt.The material of this holder is preferably magnetic material, so that this holder can be adsorbed on the outer wall of pipeline while measuring.Be understandable that, the material of this holder also can be for having other materials of absorption affinity or adhesion, or in the bottom of holder with other structures with absorption affinity or adhesion.In each position between level indicator and holder, fixing feet middle part, be provided with the downward folding fold mechanism (not shown) of end that can make fixing feet.One end of fixed bar can be stretched out and be fixedly connected with it from the sleeve of fixed cover, the other end is provided with and can holds the through hole that rotating shaft is passed through, visible, the effect of fixed bar is exactly to connect parts for measuring and for the parts of fixed support, and makes positioning parts for measuring in the precalculated position of pipe interior.In order to make to be connected more firmly between fixed bar and fixed cover, also in the upper end of fixed cover, be provided with locking cap, with being connected between be locked cover and fixed bar, to avoid fixed bar displacement along its length.
This pipeline inner circle sectional area measurement mechanism can also comprise digital display recording instrument, can show exactly the measured value with recording measuring device.
With reference to Fig. 6 to Fig. 8, pipeline inner circle sectional area measurement mechanism of the present utility model is applicable to measure the pipeline that axis is parallel to surface level, and its use-pattern comprises the steps:
1) according to the specification of pipe under test, select the inner diameter measurement portion of suitable range, according to the connecting link of inner diameter measurement portion being installed in the rotating shaft that has connected measurement of angle portion, rotary driving part and fixed bar shown in Fig. 4;
2) in pipe under test, select a plurality of measuring positions, such as 2 to 5, then near the perforate measuring position of selecting, the measurement component assembling in step 1) is stretched into pipe interior from the hole of holding successfully, make the axis of rotating shaft be parallel to the axis of pipeline, and make the upper end of fixed bar higher than the hole upper edge of measuring position;
3) upper end of fixed bar is stretched out from the sleeve of fixed cover, the direction of two pin that are relatively fixed and the axis of pipeline are set parallel and corresponding two holders are adhered on pipeline outer wall, thereby the axis of the direction of two other fixing feet and pipeline is vertical and by fold mechanism, make that the end of fixing feet is folding adheres to pipeline outer wall by corresponding two holders downwards;
4) move up and down fixed bar, make the axis of rotating shaft approach or coincide with the axis of pipeline, make near the center of circle of circular section in pipeline, center of connecting link or overlap with the center of circle, guaranteeing that the axis of rotating shaft is parallel to the axis of pipeline, then locks locking cap simultaneously;
5) adjust the bolt of each fixing feet, so that the indication result of the level indicator in each fixing feet is level, thereby the axis of assurance fixed bar is vertical and the axis horizontal of rotating shaft;
6) start motor and drive connecting link rotation, the diameter of each point on circular section in measuring channel;
7) above-mentioned measurement is carried out in a plurality of measuring positions, repeating step 2) to 6), finally the measurement result of each position is averaged, to reduce measuring error, improve measuring accuracy, finally obtain the value of the inner circle sectional area of pipeline comparatively accurately.
Be understandable that, in actual measurement, the order of above step can not carried out in strict accordance with said sequence, as long as guarantee that the status requirement of measurement mechanism also can Measurement accuracy.In addition, after a measuring position perforate, the in the situation that of fixed bar invariant position, can measure positive and negative two groups of data by fixed bar being rotated to 90 degree, can in the situation that guaranteeing that measuring data sample is counted, reduce the number that needs perforate like this.Conventionally, 5 groups of data just can calculate the inner circle sectional area of pipeline comparatively exactly.
Above embodiment is only illustrative embodiments of the present utility model, can not be for limiting the utility model, and protection domain of the present utility model is defined by the claims.Those skilled in the art can make various modifications or be equal to replacement the utility model in essence of the present utility model and protection domain, these modifications or be equal to replacement and also should be considered as dropping in protection domain of the present utility model.
Claims (9)
1. a pipeline inner circle sectional area measurement mechanism, comprises inner diameter measurement portion, and described inner diameter measurement portion comprises:
Connecting link;
Be separately positioned on two ends of described connecting link and the expansion link that can reciprocatingly slide along described connecting link length direction;
Be arranged on the electronic ruler sensor on described connecting link, it is configured to the displacement of expansion link described in sensing.
2. pipeline inner circle sectional area measurement mechanism according to claim 1, is characterized in that, described measurement mechanism also comprises measurement of angle portion, and described measurement of angle portion comprises angular transducer, and it is configured to the anglec of rotation of connecting link described in sensing.
3. pipeline inner circle sectional area measurement mechanism according to claim 1, it is characterized in that, described measurement mechanism also comprises rotary driving part, and described rotary driving part comprises the rotating shaft being vertically fixedly connected with the middle part of described connecting link and is fixed to the motor that is configured to drive described rotating shaft rotation of described rotating shaft.
4. pipeline inner circle sectional area measurement mechanism according to claim 3, is characterized in that, described rotary driving part also comprises transmission gear.
5. pipeline inner circle sectional area measurement mechanism according to claim 3, is characterized in that, described measurement mechanism also comprises support fixed part, and described support fixed part comprises:
Be shaped as the fixed cover of tubular;
One end be arranged on the outer wall of described fixed cover and the other end respectively from outward extending four fixing feet of described fixed cover;
Be arranged at respectively the level indicator at the position of the close described fixed cover in fixing feet described in each;
Be arranged at respectively the free terminal of fixing feet described in each and the holder being connected with described fixing feet by bolt, the distance between described holder and described fixing feet regulates by described bolt,
Wherein, described in each fixing feet comprise in the middle make described fixing feet can be from middle part folding fold mechanism downwards.
6. pipeline inner circle sectional area measurement mechanism according to claim 5, is characterized in that, described holder is made by magnetic material.
7. pipeline inner circle sectional area measurement mechanism according to claim 5, is characterized in that, described support fixed part also comprises:
Fixed bar, its one end is provided with and can holds the through hole that described rotating shaft is passed through, and its other end passes and is connected in described fixed cover; And
Locking cap, it is fixed the connection between described fixed cover and described fixed bar.
8. pipeline inner circle sectional area measurement mechanism according to claim 1, is characterized in that, the number of described inner diameter measurement portion is a plurality of, and described in each, the range of inner diameter measurement portion is different.
9. pipeline inner circle sectional area measurement mechanism according to claim 3, is characterized in that, described rotating shaft is detachable with being fixedly connected with of described connecting link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420194932.XU CN203981160U (en) | 2014-04-21 | 2014-04-21 | Pipeline inner circle sectional area measurement mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420194932.XU CN203981160U (en) | 2014-04-21 | 2014-04-21 | Pipeline inner circle sectional area measurement mechanism |
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| CN203981160U true CN203981160U (en) | 2014-12-03 |
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| CN201420194932.XU Expired - Lifetime CN203981160U (en) | 2014-04-21 | 2014-04-21 | Pipeline inner circle sectional area measurement mechanism |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973188A (en) * | 2015-12-11 | 2016-09-28 | 北京强度环境研究所 | System and method for measurement of engine jet pipe axis |
| CN106197344A (en) * | 2016-09-09 | 2016-12-07 | 蚌埠中建材信息显示材料有限公司 | A kind of ultra-thin flat glass stack mechanical arm range unit |
| CN107063035A (en) * | 2016-12-29 | 2017-08-18 | 中国冶集团有限公司 | Determine the device and method in pipeline center section |
| CN110220487A (en) * | 2019-05-28 | 2019-09-10 | 平高集团有限公司 | Cylinder roundness detection method and cylinder roundness measuring device |
| CN113124739A (en) * | 2019-12-31 | 2021-07-16 | 中国航发商用航空发动机有限责任公司 | Plug type axisymmetric nozzle outlet section measuring device and measuring method |
-
2014
- 2014-04-21 CN CN201420194932.XU patent/CN203981160U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973188A (en) * | 2015-12-11 | 2016-09-28 | 北京强度环境研究所 | System and method for measurement of engine jet pipe axis |
| CN105973188B (en) * | 2015-12-11 | 2019-03-19 | 北京强度环境研究所 | The measuring system and method for engine jet pipe axis |
| CN106197344A (en) * | 2016-09-09 | 2016-12-07 | 蚌埠中建材信息显示材料有限公司 | A kind of ultra-thin flat glass stack mechanical arm range unit |
| CN107063035A (en) * | 2016-12-29 | 2017-08-18 | 中国冶集团有限公司 | Determine the device and method in pipeline center section |
| CN110220487A (en) * | 2019-05-28 | 2019-09-10 | 平高集团有限公司 | Cylinder roundness detection method and cylinder roundness measuring device |
| CN113124739A (en) * | 2019-12-31 | 2021-07-16 | 中国航发商用航空发动机有限责任公司 | Plug type axisymmetric nozzle outlet section measuring device and measuring method |
| CN113124739B (en) * | 2019-12-31 | 2023-02-24 | 中国航发商用航空发动机有限责任公司 | Plug type axisymmetric nozzle outlet cross section measuring device and measuring method |
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