CN105136346B - A kind of novel load sensor - Google Patents
A kind of novel load sensor Download PDFInfo
- Publication number
- CN105136346B CN105136346B CN201510463388.3A CN201510463388A CN105136346B CN 105136346 B CN105136346 B CN 105136346B CN 201510463388 A CN201510463388 A CN 201510463388A CN 105136346 B CN105136346 B CN 105136346B
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- groove
- bearing plate
- metal elastomer
- round bottom
- load sensor
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Abstract
The invention discloses a kind of novel load sensors comprising：One round bottom basin, centre has a groove；Bearing plate on one, upper part stretch out the groove, and lower part is located in the groove；One metal elastomer forms an accommodating space close to the bottom of groove between the metal elastomer and the bottom portion of groove；One rubber bearing plate is mounted between the metal elastomer and the upper bearing plate；It is provided with elastic deformation measuring device in the accommodating space and on the lateral wall of round bottom basin, the elastic deformation measuring device includes the fixed-hinged support positioned at the bottom portion of groove, the connection bar and the displacement sensor on round bottom basin lateral wall being rotatably connected with the fixed-hinged support.Novel load sensor of the present invention is tested using macroscopic deformation test replacement microdeformation, simple in structure, at low cost；Without pasting sensing element, the difficulty replaced when sensing element being avoided to fail in the metal elastomer of novel load sensor of the present invention.
Description
Technical field
The present invention relates to a kind of novel load sensors for surveying load using displacement, more particularly to one kind to be applied to various
The important features object such as large scale equipment, building, bridge carries out the novel load sensor of long duration load monitoring.
Background technology
Currently, in various equipment or engineering construction, the sensor for load test is mainly resistance-type load sensing
Device, this kind of sensor are pasted onto the metallic elastic member experienced load and generate micro flexible deformation using resistance wire piece as sensing element
On part, the load on elastic element is acted on by the voltage change test of test resistance silk piece.The structural shape of elastic element
It is divided into column formula, spoke type, beam type etc., corresponding load sensor has column formula load sensor, spoke type load sensing
Device, beam type load sensor etc..These be widely used in the shortcomings that resistance-type load sensor in various fields be used for a long time
Reliability it is not high, service life is difficult to estimate, the cost of sensor quickly increases also with the increase of load.
In addition, needing the load sensor that large bearing capacity is used for a long time, sensing in many industrial productions and engineering construction
Device needs to be mounted on the object that volume is big, load is big, such as large scale equipment, building, bridge, ocean platform building etc..Such as
Current resistance-type load sensor is mounted on these large scale equipments or building by fruit, when sensor is damaged using process
When bad or failure, repair and replacement will pay huge cost, or even can not replace at all.
It can be seen that reliability is not high during existing load sensor is used for a long time, if being damaged or the hardly possible that fails
To safeguard or replace, and the load sensor cost of existing large bearing capacity is excessively high, has a single function.
China, which is in, implements regional integration and all the way a beginning with strategy, and future transportation engineering construction, region are fast
Speed development and the arrival in industrial 4.0 epoch are that intelligent industrial products provide wide stage, there is an urgent need for a kind of reliability height, at
This low, long lifespan novel sensor.
Invention content
The object of the present invention is to provide a kind of novel load sensors, have installation, replace simply, easy to maintain, answer
The advantages such as extensive with field, service life is long, and manufacturing cost is low.
In order to solve the above technical problems, a kind of novel load sensor of the present invention comprising：
One round bottom basin, has a groove among it；
Bearing plate on one, upper part stretch out the groove, and lower part is located in the groove；
One metal elastomer forms an appearance between the bottom of groove, the metal elastomer and the bottom portion of groove
Between emptying；
One rubber bearing plate is mounted between the metal elastomer and the upper bearing plate；
It is provided with elastic deformation measuring device in the accommodating space and on the lateral wall of round bottom basin, the elastic deformation
Measuring device includes：Positioned at the fixed-hinged support of the bottom portion of groove, the connection bar that is rotatably connected with the fixed-hinged support with
And the displacement sensor on round bottom basin lateral wall；
Wherein, the upper surface of one end of the connection bar is contacted by supporting rod with the metal elastomer bottom, lower end
Face is connect with the spring for having precompressed compression deformation for being fixed on bottom portion of groove, and the other end of the connection bar is by being arranged in the circle
Through-hole on shape bottom basin side wall reaches on the outside of round bottom basin, and is connect with institute displacement sensors.
In one embodiment of the present of invention, the other end of the connection bar is connect by connecting rod with institute displacement sensors.
In one embodiment of the present of invention, the top of the upper bearing plate is parallelepiped body portion, and lower part is cylindrical portion,
The cylindrical portion is located in the groove of the round bottom basin.
In one embodiment of the present of invention, the side elevation of the cylinder of the upper bearing plate and the round bottom basin groove
There is certain gap between madial wall, bearing plate is allowed to be rotated in the groove of the round bottom basin.
In one embodiment of the present of invention, the inner peripheral of the groove of the circle bottom basin is provided with annular convex platform, described
Metal elastomer is mounted on the boss.
In one embodiment of the present of invention, the metal elastomer is round or is polygon.
In one embodiment of the present of invention, the fixed-hinged support is arranged close in the bottom of the groove of the round bottom basin
At madial wall.
Novel load sensor of the present invention has following advantageous effect compared with the prior art：
The novel load sensor of the present invention is tested using macroscopic deformation test replacement microdeformation, and the test of load is turned
Become the test of displacement, it is simple in structure, it is at low cost；It is quick without pasting in the metal elastomer of the novel load sensor of the present invention
Sensing unit, the difficulty replaced when sensing element being avoided to fail；The novel load sensor of the present invention has the adaptation of rotational deformation
Property, the function of adapting to rotational deformation is increased, has widened the application field of sensor, easy maintenance, maintenance cost is low, reliably
Property it is high, service life is long, can be with the measured object same service life.
Description of the drawings
Fig. 1 be the present invention structural schematic diagram from novel load sensor I-I to vertical section；
Fig. 2 be the present invention structural schematic diagram from novel load sensor II-II to cross section.
Specific implementation mode
Shown in Fig. 1 and Fig. 2, novel load sensor of the invention comprising：Round bottom basin 5 is located at circle
Metal elastomer 3, rubber bearing plate 2 in shape bottom basin, the upper bearing plate 1 and part being partly located in round bottom basin 5 are located at
Elastic deformation measuring device 4 in round bottom basin 5.
Wherein, the centre of round bottom basin 5 has a groove；Upper bearing plate 1 is by the parallelepiped body portion on top and the circle of lower part
Columnar part forms, and the parallelepiped body portion of upper bearing plate 1 stretches out the groove, and the cylindrical portion of lower part is located in the groove；Gold
Belong to elastomer 3 and forms an accommodating space, and metallic elastic between the bottom of groove, the metal elastomer 3 and bottom portion of groove
Body 3 is made of high strength elastic material.The inner peripheral of groove is provided with annular convex platform 51, and metal elastomer 3 is mounted on boss
On 51.Preferably, metal elastomer 3 is round or is polygon.Rubber bearing plate 2 setting metal elastomer 3 with above hold
Between pressing plate 1, rubber bearing plate 2 is uniformly distributed by the load that the Rheological Deformation of its own will act on rubber bearing plate 2
In in metal elastomer 3, the load in metal elastomer 3 is acted on as evenly load to ensure that；It is held simultaneously by rubber
The object that the chrominance signal deformation of pressing plate 2 is suitable for being mounted on upper bearing plate 1 rotates the needs of deformation, makes this load
Sensor has the function of being suitable for rotational deformation.
Further, it is provided with elastic deformation measuring device 4 in accommodating space and on the lateral wall of round bottom basin 5, it should
Elastic deformation measuring device 4 includes：Positioned at the fixed-hinged support 43 of bottom portion of groove, it is rotatably connected with the fixed-hinged support 43
It is connected to bar 42 and the displacement sensor 6 on 5 lateral wall of round bottom basin.The upper surface for being connected to one end of bar 42 passes through branch
Strut 44 is contacted with 3 bottom of metal elastomer, and lower face is connect with the spring 41 for having precompressed compression deformation for being fixed on bottom portion of groove.
The other end of connection bar 42 reaches the outside of round bottom basin 5 by the way that the through-hole on 5 side wall of round bottom basin is arranged, and passes through company
Bar 45 is connect with the displacement sensor 6 being arranged on the lateral wall of round bottom basin 5.Preferably, fixed-hinged support 43 is arranged recessed
The bottom of slot is close to side-walls.
The displacement sensor 6 of the present invention is installed on the lateral wall of round bottom basin 5, passes through connecting rod by 42 other end of connection bar
45 extend the deflection deformation of metal elastomer 3 to except round bottom basin 5, and can measure connection bar 42 by displacement sensor 6 stretches
3 central point deflection deformation of metal elastomer can be obtained in the vertical displacement of outlet, the vertical displacement by being connected to 42 external part of bar
Size.Since the amount of deflection of 3 central point of metal elastomer is directly proportional to the load on the upper bearing plate 1 for acting on the present invention,
Displacement measured by displacement sensor 6 is also directly proportional to load in the present invention on bearing plate 1 is acted on, i.e. metal elastomer 3
The amount of deflection of central point can be by measuring mounted on the displacement sensor 6 of 5 lateral wall of round bottom basin.Since displacement sensor 6 is installed
In the outside of round bottom basin 5, it is easily installed, safeguards and replaces when elastic deformation measuring device 4 is damaged or is failed, greatly improve
The useful life longevity and reliability of load sensor.
1 bottom surface of upper bearing plate of novel load sensor of the present invention is plane or curved surface, upper bearing plate 1 and rubber bearing plate
2 top surfaces are plane or curved face contact；2 bottom surface of rubber bearing plate is plane or curved surface, rubber bearing plate 2 and metal elastomer 3
Top surface is plane or curved face contact；3 bottom surface of metal elastomer can be the combination of plane, curved surface or plane and curved surface, circular base
The bottom surface of basin 5 is the combination of plane and curved surface, and metal elastomer 3 can be that face contact or line contact with the contact of round bottom basin 5.This
The top of the bottom surface and round bottom basin 5 of the parallelepiped body portion of the stretching of the upper bearing plate 1 of the novel load sensor of the invention groove
Face has certain distance.1 lower section of upper bearing plate cylinder convex under being, side is cylindrical surface；Rubber bearing plate 2 and metal elastic
Property body 3 side elevation be cylindrical surface or other curved surfaces, the medial surface of round bottom basin 5 is cylinder.The cylindrical portion of upper bearing plate 1
Side elevation and the side elevation of round bottom basin 5 between can contact, rubber bearing plate 2 and metal elastomer 3 and 5 inside of round bottom basin
Contact between face contacts for face.
Preferably, may be provided with anti-attrition slide plate on upper bearing plate 1, it is suitable for pacifying after installing anti-attrition slide plate additional on upper bearing plate 1
The needs of object occurred level sliding on upper bearing plate 1, have widened the present invention to the adaptability for rotating and sliding in this way
Novel load sensor application field.
Preferably, having centainly between the side elevation of the cylinder of upper bearing plate 1 and the madial wall of round bottom basin groove
Gap allows bearing plate 1 to generate small rotation in groove.When the object run-off the straight on upper bearing plate 1, on
Bearing plate 1 tilts therewith, and rubber bearing plate 2 then generates chrominance signal due to it with rheological behavior, to adapt to upper pressure-bearing
The inclination of plate 1, while the Rheological Deformation of rubber bearing plate 2 makes load be uniformly distributed in cylinder bottom surface and the gold of bearing plate 1
Belong to 3 upper surface of elastomer.In the range of evenly load is no more than maximum permissible value, the deflection deformation of metal elastomer 3 is in line
Elastic characteristic will occur elastically-deformable displacement by connection bar 42 and pass to displacement sensor, to realize load test work(
Energy.Further, since to the adaptability of rotational deformation, the load which can be used as large scale equipment is measured and is used
Make the bearing of the large structure of long term monitoring bearing load.
The present invention novel load sensor operating principles be：The load on bearing plate 1 is acted on via upper bearing plate
1, rubber bearing plate 2, metal elastomer 3 reach the elastic deformation measuring device 4 of round bottom basin 5.Due to establishing metallic elastic
Linear elasticity deflection deformation of the body 3 under Uniform Load and the correspondence between load, are no more than in evenly load
It is linear between the deflection value and load of 3 central point of metal elastomer within the scope of the elastic ultimate load of metal elastomer 3
After demarcating this linear relationship curve by laboratory, sensor is acted on when the deflection value for measuring central point can obtain for relationship
On load, realize load sensor measure load function.
The novel load sensor of the present invention has the advantages that compared with existing load sensor：
1, load testing method of the invention is unique, is tested using macroscopic deformation test replacement microdeformation, by load
Test is changed into the test of displacement, and simple in structure, at low cost, measurement result is accurate；
2, do not have to paste sensing element in the metal elastomer of novel load sensor of the present invention, avoid sensing element mistake
Difficulty is replaced when effect, installation, replacement are more convenient using process；
3, novel load sensor of the present invention has the adaptability of rotational deformation and sliding deformation, has widened answering for sensor
With field, may be applicable to carry out the buildings such as heavy mechanical equipment, building, bridge, the ocean platform of load monitoring for a long time
Object, with the measured object same service life, service life is long, and reliability is high, and structure height is low, and low cost is at low cost.
The foregoing is merely a prefered embodiment of the invention, is not able to this and limits the protection domain that the present invention is implemented, therefore all ginsengs
Simple equivalent changes and modifications made by the description of the present invention are examined, protection scope of the present invention is still belonged to.
Claims (6)
1. a kind of novel load sensor, which is characterized in that including：
One round bottom basin, has a groove among it；
Bearing plate on one, upper part stretch out the groove, and lower part is located in the groove, is provided with anti-attrition slide plate；
One metal elastomer, is made of high strength elastic material, close to the bottom of groove, the metal elastomer and the groove
An accommodating space is formed between bottom；
One rubber bearing plate is mounted between the metal elastomer and the upper bearing plate；
It is provided with elastic deformation measuring device in the accommodating space and on the lateral wall of round bottom basin, which measures
Device includes：Positioned at the fixed-hinged support of the bottom portion of groove, the connection bar and peace that are rotatably connected with the fixed-hinged support
Displacement sensor on round bottom basin lateral wall；
Wherein, the upper surface of one end of the connection bar is contacted by supporting rod with the metal elastomer bottom, lower face and
The spring for having precompressed compression deformation for being fixed on bottom portion of groove connects, and the other end of the connection bar is by being arranged in the circular base
Through-hole on basin side wall reaches on the outside of round bottom basin, and connect with institute displacement sensors, and the fixed-hinged support setting is in institute
The bottom of round bottom basin groove is stated at madial wall；
The vertical displacement that connection bar external part can be measured by displacement sensor, elastic shape is acted on to obtain metal elastomer
Become the power in measuring device, and then obtains the size of metal elastomer central point flexing deformation.
2. novel load sensor according to claim 1, which is characterized in that
The other end of the connection bar is connect by connecting rod with institute displacement sensors.
3. novel load sensor according to claim 1, which is characterized in that
The top of the upper bearing plate is parallelepiped body portion, and lower part is cylindrical portion, and the cylindrical portion is located at the circle
In the groove of shape bottom basin.
4. novel load sensor according to claim 3, which is characterized in that
There is certain gap between the side elevation of the cylinder of the upper bearing plate and the madial wall of the round bottom basin groove,
Bearing plate is allowed to be rotated in the groove of the round bottom basin.
5. novel load sensor according to claim 1, which is characterized in that
The inner peripheral of the groove of the circle bottom basin is provided with annular convex platform, and the metal elastomer is mounted on the boss
On.
6. novel load sensor according to claim 1, which is characterized in that
The metal elastomer is round or is polygon.
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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510463388.3A CN105136346B (en) | 2015-07-31 | 2015-07-31 | A kind of novel load sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105136346A CN105136346A (en) | 2015-12-09 |
| CN105136346B true CN105136346B (en) | 2018-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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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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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813472B (en) * | 2019-03-14 | 2023-11-24 | 衡通华创(北京)科技有限公司 | Embedded load sensor |
| CN110174192B (en) * | 2019-04-26 | 2024-08-20 | 中船双瑞(洛阳)特种装备股份有限公司 | Vertical force measuring device 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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| JP2015111084A (en) * | 2013-12-06 | 2015-06-18 | ミネベア株式会社 | Load sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH07318441A (en) * | 1994-05-24 | 1995-12-08 | Matsushita Electric Ind Co Ltd | Strain sensor for measuring instrument and load cell type measuring instrument using this |
| JP2011080586A (en) * | 2009-09-10 | 2011-04-21 | Akebono Brake Ind Co Ltd | Electric disc brake |
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Patent Citations (6)
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|---|---|---|---|---|
| CN103534561A (en) * | 2011-05-17 | 2014-01-22 | 西门子公司 | Force transducer, in particular capacitive load cell |
| CN103765178A (en) * | 2011-08-02 | 2014-04-30 | Ntn株式会社 | Magnetic load sensor |
| CN203365026U (en) * | 2013-06-27 | 2013-12-25 | 北京航天新风机械设备有限责任公司 | Portable pressure gauge |
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| CN105136346A (en) | 2015-12-09 |
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Effective date of registration: 20210119 Address after: Room 223, building 1, R & D headquarters, Science Park, Central South University, changzuo Road, Yuelu District, Changsha City, Hunan Province, 41007 Patentee after: HUNAN DAODAYU TECHNOLOGY Co.,Ltd. Address before: 100081 808, 7 / F, building 1, courtyard B 12, Zhongguancun South Street, Haidian District, Beijing Patentee before: BEIJING BOYUAN TIANHENG TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20210723 Address after: 100081 1012, 10, 1 building, 59 hospital, Haidian District, Beijing. Patentee after: BEIJING BOYUAN TIANHENG TECHNOLOGY Co.,Ltd. Address before: Room 223, building 1, R & D headquarters, Science Park, Central South University, changzuo Road, Yuelu District, Changsha City, Hunan Province, 41007 Patentee before: HUNAN DAODAYU TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20181106 Termination date: 20210731 |