CN202339237U - Elastomer of load sensor for oil field - Google Patents
Elastomer of load sensor for oil field Download PDFInfo
- Publication number
- CN202339237U CN202339237U CN 201120513060 CN201120513060U CN202339237U CN 202339237 U CN202339237 U CN 202339237U CN 201120513060 CN201120513060 CN 201120513060 CN 201120513060 U CN201120513060 U CN 201120513060U CN 202339237 U CN202339237 U CN 202339237U
- Authority
- CN
- China
- Prior art keywords
- strain
- beams
- elastic body
- oil field
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229920001971 elastomer Polymers 0.000 title description 5
- 239000000806 elastomer Substances 0.000 title description 5
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract description 2
- 230000035882 stress Effects 0.000 description 8
- 238000010008 shearing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Landscapes
- Measurement Of Force In General (AREA)
Abstract
本实用新型的一种油田用载荷传感器的弹性体，包括两个受力点(1)、两根应变梁(2)和支撑座(3)；应变梁(2)与支撑座(3)采用一体化设计；两根应变梁(2)沿受力轴线对称平行分布局，采用剪切式结构，与支撑座(3)组成并联式双悬臂梁结构；两个受力点(1)分别位于两根应变梁(2)上表面的前端。本实用新型采用应变梁和支撑座的一体化设计，使整个结构更加简单、紧凑，弹性体的体积减小了30％。同时，两根应变梁平行布局，使传感器的受力更加均匀，剪切式应变梁的形式使焊接、密封更容易。
The utility model relates to an elastic body of a load sensor for an oil field, comprising two stress points (1), two strain beams (2) and a support seat (3); the strain beam (2) and the support seat (3) adopt Integrated design; two strain beams (2) are distributed symmetrically and parallelly along the stress axis, adopting a shear structure, and form a parallel double cantilever beam structure with the support base (3); the two stress points (1) are respectively located at The front ends of the upper surfaces of the two strain beams (2). The utility model adopts the integrated design of the strain beam and the supporting seat, so that the whole structure is simpler and more compact, and the volume of the elastic body is reduced by 30%. At the same time, the two strain beams are arranged in parallel to make the force on the sensor more uniform, and the form of the shear strain beam makes welding and sealing easier.
Description
Technical field
The utility model belongs to the force cell technical field, particularly a kind of sensor element that is applicable to oil field oil recovery airborne measurements load.
Background technology
Load transducer is to be used for the oil field oil production machine to show that the worker schemes one of main sensors of unit.The elastic body that the present sensor of measuring load generally uses has two kinds of structures: O type structure and U type structure, its citation form is pole structure.
Wherein, The whole pole structure that adopts of O type elastomer structure; Can welded seal, barrier propterty is good, but this version elastic body install and unloading process in need remove sucker rod from poliched rod eye; Then elastomer sleeve is installed poliched rod eye again on sucker rod, the installation of sensor and dismounting are inconvenient especially.
Another kind of U type elastomer structure adopts split modular structure as shown in Figure 1, and wherein, A is that stress point, B are that elastic body, C are supporting seat.This kind elastic body adopts U type open type structure, is contained between the last lower platen of poliched rod eye installation, convenient disassembly during installation.But this kind sensor adopts the queen post structure, and two column type elastomers pass through screw retention on supporting seat, and there is following major defect in this structural elasticity body: fabricated structure, and loosening easily; O type circle and glue are leaned in sealing, and poorly sealed situation appears in easy ageing.
Owing to have above deficiency, at present, use these two kinds of elastomeric sensor accuracies about 0.3%FS.
The utility model content
The technology of the utility model is dealt with problems: overcome the deficiency of prior art, the elastic body of the high oil field of a kind of simple in structure, good airproof performance, measuring accuracy with load transducer is provided.
The technical solution of the utility model: a kind of oil field is with the elastic body of load transducer, comprises two stress points, two strain beams and supporting seat; Strain beam and supporting seat adopt integrated design; Said two strain beams divide layout along stressed axis symmetrical, parallel, adopt shearing structure, form parallel double cantilever beam structure with supporting seat; Said two stress points lay respectively at the front end of two strain beam upper surfaces.
The outside of said two strain beams has strain bore.
Diameter range 18～the 25mm of said strain bore, dark 5～8mm.
The utility model beneficial effect compared with prior art is:
1. the utility model adopts the integrated design of strain beam and supporting seat, makes total simpler, compact, and elastomeric volume has reduced 30%.
2. two of the utility model strain beam parallel arrangement make the stressed more even of sensor.Simultaneously, the form of shearing strain beam make welding, the sealing easier.
3. the utility model strain beam adopts shearing structure, simultaneously has strain bore in the outside of two strain beams, and the technical indicators such as linearity, hysteresis, repeatability of sensor are greatly improved, and all is superior to 0.1%FS.
Description of drawings
Fig. 1 is a U type sensor synoptic diagram;
Fig. 2 is the synoptic diagram of the utility model;
Fig. 3 pastes the synoptic diagram behind the strainometer for the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
As shown in Figure 2, a kind of oil field of the utility model is with the elastic body of load transducer, comprises two stress points 1, two strain beams 2 and supporting seats 3; Strain beam 2 adopts integrated design with supporting seat 3.Two strain beams 2 distribute along stressed axis symmetrical, parallel, adopt shearing structure, form parallel double cantilever beam structure with supporting seat 3, and two stress points 1 lay respectively at the front end of two strain beam 2 upper surfaces.
In the present embodiment, two stress points 1 are the arc-shaped protrusions of strain beam 2 upper surface front ends.
The strain beam 2 of the utility model adopts superior alloy steel to be processed into the shearing structure of parallel girder with supporting seat 3, and through bakingout process, intensity is high, stable performance.
The outside of two strain beams 2 has strain bore 21, is used to paste foil gauge.The size of strain bore 21 has determined the sensitivity (sensor loads back output signal magnitude) of sensor.In the present embodiment, the sensitivity of sensor is 1～2mV/V.
If the diameter of strain bore 21 is certain, can change the range ability of sensor through the degree of depth that changes strain bore 21.
In the utility model, the diameter range 18～25mm of strain bore 21, dark 5～8mm.In the present embodiment, the diameter 20mm of strain bore 21, dark 8mm.
Four strainometers 4 stick on respectively in the strain bore 21 in two strain beam 2 outsides, experience normal strain for two, experience negative strain for two, and four strainometers 4 are formed resistance bridge.Through becoming the sensor that is used for pressure test after temperature compensation, zero compensation, welded seal, the calibrating.When stress point 1 receives when pressing to load, strain beam 2 deforms, and the resistance value that sticks on four strainometers 4 in the strain bore 21 simultaneously changes; At this moment; The resistance bridge out of trim, the millivolt signal of output is directly proportional with the magnitude of load that is applied to stress point 1 place, thereby records the size of load; Through demarcating and data computation, the final precision of sensor is superior to 0.1%FS.
In addition, use the elastomeric sensor anti-bias load of the utility model ability strong, its principle is: when sensor received unbalance loading load, the arm resistance of forming resistance bridge changed simultaneously, thereby the output that guarantees electric bridge is constant.
Certainly, under the situation that does not change its function, the equivalent transformation that carries out or substitute also falls into the protection domain of the utility model to each building block of the utility model, position relation and connected mode.
The undocumented technology of the utility model instructions belongs to techniques well known.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120513060 CN202339237U (en) | 2011-12-08 | 2011-12-08 | Elastomer of load sensor for oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120513060 CN202339237U (en) | 2011-12-08 | 2011-12-08 | Elastomer of load sensor for oil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202339237U true CN202339237U (en) | 2012-07-18 |
Family
ID=46487928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120513060 Expired - Fee Related CN202339237U (en) | 2011-12-08 | 2011-12-08 | Elastomer of load sensor for oil field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202339237U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107328499A (en) * | 2017-08-11 | 2017-11-07 | 安徽天光传感器有限公司 | A kind of hand-held bayonet socket sensor |
| CN107402100A (en) * | 2017-07-20 | 2017-11-28 | 沈阳农业大学 | A kind of force cell |
| CN108593059A (en) * | 2018-05-30 | 2018-09-28 | 张阿宁 | Multi-beam structure elastic element |
-
2011
- 2011-12-08 CN CN 201120513060 patent/CN202339237U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402100A (en) * | 2017-07-20 | 2017-11-28 | 沈阳农业大学 | A kind of force cell |
| CN107402100B (en) * | 2017-07-20 | 2024-03-12 | 沈阳农业大学 | Force transducer |
| CN107328499A (en) * | 2017-08-11 | 2017-11-07 | 安徽天光传感器有限公司 | A kind of hand-held bayonet socket sensor |
| CN108593059A (en) * | 2018-05-30 | 2018-09-28 | 张阿宁 | Multi-beam structure elastic element |
| CN108593059B (en) * | 2018-05-30 | 2019-12-31 | 张阿宁 | Multi-beam structure elastic element |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101603865B (en) | Attached load cell | |
| CN100480653C (en) | Large value piezoelectric quartz multi-component force sensor | |
| CN102135458A (en) | Strain beam type soil pressure sensor | |
| CN104568279B (en) | A kind of multi-axis force transducer | |
| CN104482960B (en) | Displacement and force test integrated sensor | |
| CN101532817A (en) | Resistance strain gauge and sensor using resistance strain gauge to change stress transfer mode | |
| CN202339237U (en) | Elastomer of load sensor for oil field | |
| CN102175137A (en) | Extensometer for measuring micro-deformation of component | |
| CN103196526A (en) | Dynamometry weighing sensor with unbalance loading isolating function and isolating measuring method thereof | |
| CN202101810U (en) | Tensile test device used for comparing calibration of stress sensor | |
| KR20110105301A (en) | Temperature Compensated Load Cell with Strain Gauge | |
| CN103323155B (en) | Container Special pull sensor and system | |
| CN103995151A (en) | Composite eight-beam high-frequency-response acceleration sensor chip | |
| CN202083500U (en) | Resistance type double-flange torque sensor | |
| CN203534742U (en) | Integrated pumping well polished rod axial force and torque sensor | |
| CN203053529U (en) | Weighting device | |
| CN106338354A (en) | Bridge bearer stress measurement method | |
| CN106403868A (en) | Crack width change dynamic monitoring method based on strain induction | |
| CN105547868B (en) | The method of the structured testing impact force that drops hammer based on stress concentration principle | |
| CN206037977U (en) | Fracture width changes dynamic monitoring device based on response of meeting an emergency | |
| CN201503293U (en) | Resistance strain sensor for target flowmeter and pontoon liquid level meter | |
| CN105403333B (en) | Bridge bearing elastic body load force measurement method and bearing elastic body | |
| CN103644837A (en) | Tension and torsion double-component strain sensor | |
| CN103925980A (en) | Variable range weighing sensor loading device | |
| CN103293336A (en) | Double-cantilever beam type micro-mechanical acceleration sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120718 Termination date: 20141208 |
|
| EXPY | Termination of patent right or utility model |