CN105136346A - Novel load sensor - Google Patents
Novel load sensor Download PDFInfo
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- CN105136346A CN105136346A CN201510463388.3A CN201510463388A CN105136346A CN 105136346 A CN105136346 A CN 105136346A CN 201510463388 A CN201510463388 A CN 201510463388A CN 105136346 A CN105136346 A CN 105136346A
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Abstract
The invention discloses a novel load sensor, and the sensor comprises a circular bottom basin, wherein the central part of the circular bottom basin is provided with a groove; an upper bearing plate, wherein the upper part of the upper bearing plate extends out from the groove, and the lower part of the upper bearing plate is located in the groove; a metal elastic body which is close to the bottom of the groove, wherein a storage space is formed between the metal elastic body and the bottom of the groove; and a rubber bearing plate which is disposed between the metal elastic body and the upper bearing plate. The interior of the storage space and the outer side wall of the circular bottom are respectively provided with an elastic deformation measurement device, and each elastic deformation measurement device comprises a fixed hinge support seat located at the bottom of the groove, a connecting rod which is rotatingly connected with the fixed hinge support seat, and a displacement sensor which is disposed on the outer side wall of the circular bottom basin. The sensor employs macroscopic deformation test to replace microscopic deformation test, is simple in structure, and is low in cost. The metal elastic body of the sensor is not provided with a sensitive element in a pasting manner, thereby avoiding replacement difficulty of the sensitive element during failure.
Description
Technical field
The present invention relates to and a kind ofly utilize displacement to survey the Novel load sensor of load, particularly relate to and be a kind ofly applied to the Novel load sensor important feature things such as various main equipment, building, bridge being carried out to long duration load monitoring.
Background technology
At present, in various equipment or engineering construction, if for the sensor main resistance-type load sensor of load test, this kind of sensor is experienced load with resistance wire sheet for sensitive element is pasted onto and is produced on the metallic elastic component of micro-elastic deformation, tests by the change in voltage of test resistance silk sheet the load acted on flexible member.The structural shape of flexible member is divided into column formula, radial, beam type etc., and corresponding load sensor has column formula load sensor, radial load sensor, beam type load sensor etc.These shortcomings being widely used in the resistance-type load sensor in various field are that long term reliability is not high, are difficult to serviceable life estimate, the cost of sensor also increases fast along with the increase of load.
In addition, need the load sensor of Long-Time Service large bearing capacity in many commercial production and engineering construction, sensor needs to be arranged on the object that volume is large, load is large, as buildingss etc. such as main equipment, building, bridge, ocean platforms.If be arranged on these main equipments or buildings by current resistance-type load sensor, when sensor use procedure is damaged or lost efficacy, repair and replacement will pay huge cost, cannot change even at all.
As can be seen here, in existing load sensor Long-Time Service process, reliability is not high, be difficult to safeguard or change, and the load sensor cost of existing large bearing capacity is too high, function singleness if be damaged or lost efficacy.
China is in and implements regional integration and the beginning of a road one with strategy, future transportation engineering construction, region arrival that is fast-developing and industrial 4.0 epoch provide wide stage for intelligent industrial products, need the novel sensor that a kind of reliability is high, cost is low, the life-span is long badly.
Summary of the invention
The object of this invention is to provide a kind of Novel load sensor, it has installation, changes simply, and easy to maintenance, application is extensive, long service life, the advantages such as low cost of manufacture.
For solving the problems of the technologies described above, a kind of Novel load sensor of the present invention, it comprises:
One circular base basin, has a groove in the middle of it;
Bearing plate on one, this groove is stretched out on its top, and bottom is positioned at this groove;
One metal elastic gonosome, it is near the bottom of groove, forms an accommodation space between this metal elastic gonosome and described bottom portion of groove;
One rubber bearing plate, is arranged between described metal elastic gonosome and described upper bearing plate;
Elastic deformation measurement mechanism is provided with in described accommodation space and on the lateral wall of circular base basin, this elastic deformation measurement mechanism comprises: the fixed-hinged support being positioned at described bottom portion of groove, and what be rotatably connected with this fixed-hinged support is communicated with bar and is arranged on the displacement transducer on circular base basin lateral wall;
Wherein, the upper surface of one end of described connection bar is contacted with bottom described metal elastic gonosome by support bar, lower surface is connected with the spring having precompression to be out of shape being fixed on bottom portion of groove, the other end of described connection bar is reached outside circular base basin by the through hole be arranged on described circular base basin sidewall, and is connected with institute displacement sensors.
In one embodiment of the present of invention, the other end of described connection bar is connected with institute displacement sensors by connecting rod.
In one embodiment of the present of invention, the top of described upper bearing plate is parallelepiped body portion, and bottom is barrel portion, and described barrel portion is positioned at the groove of described circular base basin.
In one embodiment of the present of invention, have certain gap between the cylindrical side elevation of described upper bearing plate and the madial wall of described circular base basin groove, in permission, bearing plate rotates in the groove of described circular base basin.
In one embodiment of the present of invention, the inner peripheral of the groove of described circular base basin is provided with annular boss, and described metal elastic gonosome is arranged on described boss.
In one embodiment of the present of invention, described metal elastic gonosome is circular or is polygon.
In one embodiment of the present of invention, described fixed-hinged support is arranged on the bottom of the groove of described circular base basin near madial wall place.
Novel load sensor of the present invention has following beneficial effect compared with the prior art:
Novel load sensor of the present invention utilizes macroscopic deformation test replacement microdeformation to test, and the test of load is changed into the test of displacement, and structure is simple, and cost is low; The metal elastic gonosome of Novel load sensor of the present invention does not paste sensitive element, the difficulty changed when avoiding sensitive element to lose efficacy; Novel load sensor of the present invention has the adaptability of rotational deformation, and add the function adapting to rotational deformation, widened the application of sensor, its easy maintenance, maintenance cost is low, and reliability is high, long service life, and it can the life-span same with measured object.
Accompanying drawing explanation
Fig. 1 is the structural representation of Novel load sensor I-I of the present invention to profile;
Fig. 2 is that Novel load sensor II-II of the present invention is to cross section structural representation.
Embodiment
Shown in Fig. 1 and Fig. 2, Novel load sensor of the present invention, it comprises: circular base basin 5, the metal elastic gonosome 3 being positioned at circular base basin, rubber bearing plate 2, and part is positioned at the upper bearing plate 1 of circular base basin 5 and is partly positioned at the elastic deformation measurement mechanism 4 of circular base basin 5.
Wherein, the centre of circular base basin 5 has a groove; Upper bearing plate 1 is grouped into by the parallelepiped body portion on top and the cylinder part of bottom, and the parallelepiped body portion of upper bearing plate 1 stretches out this groove, and the barrel portion of bottom is positioned at this groove; Metal elastic gonosome 3, near the bottom of groove, form an accommodation space, and metal elastic gonosome 3 is made up between this metal elastic gonosome 3 and bottom portion of groove of high strength elastic material.The inner peripheral of groove is provided with annular boss 51, and metal elastic gonosome 3 is arranged on boss 51.Preferably, metal elastic gonosome 3 is circular or is polygon.Rubber bearing plate 2 is arranged between metal elastic gonosome 3 and upper bearing plate 1, the load acted on rubber bearing plate 2 is uniformly distributed on metal elastic gonosome 3 by the Rheological Deformation of himself by rubber bearing plate 2, thus ensure that the load acted on metal elastic gonosome 3 is evenly load; Can adapt to by the distortion of the chrominance signal of rubber bearing plate 2 object be arranged on upper bearing plate 1 to rotate the needs of distortion simultaneously, make this load sensor have the function that can adapt to rotational deformation.
Further, elastic deformation measurement mechanism 4 is provided with in accommodation space and on the lateral wall of circular base basin 5, this elastic deformation measurement mechanism 4 comprises: the fixed-hinged support 43 being positioned at bottom portion of groove, and what be rotatably connected with this fixed-hinged support 43 is communicated with bar 42 and is arranged on the displacement transducer 6 on circular base basin 5 lateral wall.The upper surface being communicated with one end of bar 42 is contacted with bottom metal elastic gonosome 3 by support bar 44, and lower surface is connected with the spring 41 having precompression to be out of shape being fixed on bottom portion of groove.The other end being communicated with bar 42 reaches the outside of circular base basin 5 by the through hole be arranged on circular base basin 5 sidewall, and is connected with the displacement transducer 6 on the lateral wall being arranged on circular base basin 5 by connecting rod 45.Preferably, fixed-hinged support 43 is arranged on the bottom of groove near side-walls.
Displacement transducer 6 of the present invention is installed on the lateral wall of circular base basin 5, by connecting rod 45, the deflection deformation of metal elastic gonosome 3 is extended to circular base basin 5 by connection bar 42 other end, the vertical displacement being communicated with bar 42 external part can be measured by displacement transducer 6, the size of metal elastic gonosome 3 central point deflection deformation can be obtained by the vertical displacement being communicated with bar 42 external part.Because the amount of deflection of metal elastic gonosome 3 central point is directly proportional to the load acted on upper bearing plate 1 of the present invention, therefore, displacement measured by displacement transducer 6 is also directly proportional to the load acted on bearing plate 1 on the invention, and namely the amount of deflection of metal elastic gonosome 3 central point records by the displacement transducer 6 being arranged on circular base basin 5 lateral wall.Because displacement transducer 6 is arranged on the outside of circular base basin 5, be convenient to when elastic deformation measurement mechanism 4 damages or lost efficacy install, safeguard and change, substantially increase useful life longevity and the reliability of load sensor.
Upper bearing plate 1 bottom surface of Novel load sensor of the present invention is plane or curved surface, and upper bearing plate 1 is plane or curved face contact with rubber bearing plate 2 end face; Rubber bearing plate 2 bottom surface is plane or curved surface, and rubber bearing plate 2 is plane or curved face contact with the end face of metal elastic gonosome 3; Metal elastic gonosome 3 bottom surface can be the combination of plane, curved surface or plane and curved surface, and the bottom surface of circular base basin 5 is the combination of plane and curved surface, and metal elastic gonosome 3 can be face with the contact of circular base basin 5 and contacts or linear contact lay.The bottom surface of stretching out the parallelepiped body portion of this groove of the upper bearing plate 1 of Novel load sensor of the present invention and the end face of circular base basin 5 have certain distance.Be lower convex right cylinder below upper bearing plate 1, its side is the face of cylinder; The side elevation of rubber bearing plate 2 and metal elastic gonosome 3 is the face of cylinder or other curved surface, and the medial surface of circular base basin 5 is cylinder.Can contact between the side elevation of the barrel portion of upper bearing plate 1 and the side elevation of circular base basin 5, rubber bearing plate 2 and the contact between metal elastic gonosome 3 and circular base basin 5 medial surface are that face contacts.
Preferably, upper bearing plate 1 can be provided with anti-attrition slide plate, the needs of the object occurred level slip be arranged on bearing plate 1 can be adapted to after upper bearing plate 1 installs anti-attrition slide plate additional, like this Novel load sensor application field of the present invention has been widened to the adaptability of rotating and slide.
Preferably, have certain gap between the cylindrical side elevation of upper bearing plate 1 and the madial wall of circular base basin groove, in permission, bearing plate 1 produces little rotation in groove.When being arranged on the object run-off the straight on upper bearing plate 1, upper bearing plate 1 tilts thereupon, rubber bearing plate 2 produces chrominance signal because it has rheological characteristics, to adapt to the inclination of upper bearing plate 1, the Rheological Deformation of rubber bearing plate 2 makes load be uniformly distributed in right cylinder bottom surface and metal elastic gonosome 3 upper surface of bearing plate 1 simultaneously.Be no more than in the scope of maximum permissible value in evenly load, the deflection deformation of metal elastic gonosome 3 is linear elasticity characteristic, by being communicated with bar 42, elastically-deformable for generation displacement is passed to displacement transducer, thus realizes load test function.In addition, due to the adaptability to rotational deformation, the load that this Novel load sensor can be used as main equipment measures and is used as the bearing that long term monitoring supports the large structure of load.
Novel load sensor operating principles of the present invention is: act on load on bearing plate 1 reaches circular base basin 5 elastic deformation measurement mechanism 4 via upper bearing plate 1, rubber bearing plate 2, metal elastic gonosome 3.Owing to establishing the corresponding relation between the linear elasticity deflection deformation of metal elastic gonosome 3 under Uniform Load and load, be no more than within the scope of the elastic ultimate load of metal elastic gonosome 3 in evenly load, linear between the deflection value of metal elastic gonosome 3 central point and load, after demarcating this linear relationship curve by testing laboratory, when the deflection value measuring central point just can draw effect load on a sensor, realize the function that load sensor measures load.
Novel load sensor of the present invention, compared with existing load sensor, has following beneficial effect:
1, load testing method of the present invention is unique, utilizes macroscopic deformation test replacement microdeformation to test, the test of load is changed into the test of displacement, and structure is simple, and cost is low, and measurement result is accurate;
The metal elastic gonosome of 2, Novel load sensor of the present invention need not paste sensitive element, avoid when sensitive element lost efficacy and change difficulty, install, to change use procedure more convenient;
3, Novel load sensor of the present invention has rotational deformation and the adaptability of distortion of sliding, widen the application of sensor, it can be applicable to the buildings such as heavy mechanical equipment, building, bridge, ocean platform needing to carry out load monitoring for a long time, life-span same with measured object, long service life, reliability is high, and structure height is low, and cost low cost is low.
These are only preferred embodiment of the present invention, be not able to this and limit protection domain of the invention process, therefore all with reference to description of the present invention do simple equivalence change with modify, still belong to protection scope of the present invention.
Claims (7)
1. a Novel load sensor, is characterized in that, comprising:
One circular base basin, has a groove in the middle of it;
Bearing plate on one, this groove is stretched out on its top, and bottom is positioned at this groove;
One metal elastic gonosome, it is near the bottom of groove, forms an accommodation space between this metal elastic gonosome and described bottom portion of groove;
One rubber bearing plate, is arranged between described metal elastic gonosome and described upper bearing plate;
Elastic deformation measurement mechanism is provided with in described accommodation space and on the lateral wall of circular base basin, this elastic deformation measurement mechanism comprises: the fixed-hinged support being positioned at described bottom portion of groove, and what be rotatably connected with this fixed-hinged support is communicated with bar and is arranged on the displacement transducer on circular base basin lateral wall;
Wherein, the upper surface of one end of described connection bar is contacted with bottom described metal elastic gonosome by support bar, lower surface is connected with the spring having precompression to be out of shape being fixed on bottom portion of groove, the other end of described connection bar is reached outside circular base basin by the through hole be arranged on described circular base basin sidewall, and is connected with institute displacement sensors.
2. Novel load sensor according to claim 1, is characterized in that,
The other end of described connection bar is connected with institute displacement sensors by connecting rod.
3. Novel load sensor according to claim 1, is characterized in that,
The top of described upper bearing plate is parallelepiped body portion, and bottom is barrel portion, and described barrel portion is positioned at the groove of described circular base basin.
4. Novel load sensor according to claim 3, is characterized in that,
Have certain gap between the cylindrical side elevation of described upper bearing plate and the madial wall of described circular base basin groove, in permission, bearing plate rotates in the groove of described circular base basin.
5. Novel load sensor according to claim 1, is characterized in that,
The inner peripheral of the groove of described circular base basin is provided with annular boss, and described metal elastic gonosome is arranged on described boss.
6. Novel load sensor according to claim 1, is characterized in that,
Described metal elastic gonosome is circular or is polygon.
7. Novel load sensor according to claim 1, is characterized in that,
Described fixed-hinged support is arranged on the bottom of described circular base basin groove near madial wall place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510463388.3A CN105136346B (en) | 2015-07-31 | 2015-07-31 | A kind of novel load sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510463388.3A CN105136346B (en) | 2015-07-31 | 2015-07-31 | A kind of novel load sensor |
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| CN105136346A true CN105136346A (en) | 2015-12-09 |
| CN105136346B CN105136346B (en) | 2018-11-06 |
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| CN201510463388.3A Expired - Fee Related CN105136346B (en) | 2015-07-31 | 2015-07-31 | A kind of novel load sensor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813472A (en) * | 2019-03-14 | 2019-05-28 | 湖南道达宇科技有限公司 | A kind of embedded load sensor |
| CN110174192A (en) * | 2019-04-26 | 2019-08-27 | 洛阳双瑞特种装备有限公司 | A kind of vertical device for measuring force and force measuring method |
| CN113215969A (en) * | 2021-03-11 | 2021-08-06 | 衡通华创(北京)科技有限公司 | Multichannel basin-type force measurement support |
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| CN109813472A (en) * | 2019-03-14 | 2019-05-28 | 湖南道达宇科技有限公司 | A kind of embedded load sensor |
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| CN110174192A (en) * | 2019-04-26 | 2019-08-27 | 洛阳双瑞特种装备有限公司 | A kind of vertical device for measuring force and force measuring method |
| CN113215969A (en) * | 2021-03-11 | 2021-08-06 | 衡通华创(北京)科技有限公司 | Multichannel basin-type force measurement support |
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| CN105136346B (en) | 2018-11-06 |
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