CN108007628A - A kind of belt force sensor - Google Patents
A kind of belt force sensor Download PDFInfo
- Publication number
- CN108007628A CN108007628A CN201711448463.4A CN201711448463A CN108007628A CN 108007628 A CN108007628 A CN 108007628A CN 201711448463 A CN201711448463 A CN 201711448463A CN 108007628 A CN108007628 A CN 108007628A
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- Prior art keywords
- stress
- rod
- force sensor
- locating piece
- main body
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- 239000011888 foil Substances 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 238000005259 measurement Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims 1
- 238000009863 impact test Methods 0.000 abstract description 7
- 238000012360 testing method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The present invention provides a kind of belt force sensor, including main body, the main body is equipped with upper cover plate.The body top is equipped with groove, and the groove is used to install foil gauge；Parallel force rod and stress rotatable part are equiped with the main body, the parallel stress boom end is equipped with location hole, the stress rotatable part is arranged in parallel stress boom end, the stress rotatable part includes built-in rod, elastic component and locating piece, elastic component is equipped with the built-in rod, the elastic component end is equipped with locating piece, and the locating piece is adapted with the location hole.The present invention need not be fixed in the car on wall, so, it is installed, is very easy to use.Overall structure of the present invention is simple, and operation is easy and is not easy to be influenced by space and external environment, and highly practical, tightness is good, meets vehicle impact testing requirement.
Description
Technical field
The present invention relates to the belt force sensing under a kind of belt force sensor, particularly vehicle impact testing
Device.
Background technology
In vehicle impact testing, the measurement of safety belt pulled out condition plays vital shadow to the performance judgment of automobile
Ring, but due to the particularity of safety belt structure, it is difficult to go to carry out accurately the pulling force situation of safety belt with existing force snesor
Measurement.During vehicle impact testing, the data that belt force obtains can be used for " injury " possibility for differentiating dummy, close
Arrive the performance and safety of automobile.
The miscellaneous pulling force sensor used for specific environment is currently there are, it is special due to safety belt
Property, existing force snesor can not be measured accurately, and existing force snesor impact strength is inadequate, can not collided
(existing patent CN201110350440.6 tension transducer with resistance strain pieces) is used in experiment.Also, existing belt force
The problem of sensor cannot passively rotate there are force rod dismounting inconvenience and force rod and influence detection result.In detection safety belt
During pulling force, if two force rods are not pulled and rotated with safety belt, measurement accuracy will substantially reduce.
The content of the invention
The technical problems to be solved by the invention are to improve deficiency of the prior art, there is provided one kind installation, use all ten
Divide convenient effective, simple in structure, the small and high impact strength belt force biography suitable for vehicle impact testing
Sensor.
A kind of belt force sensor, including main body, the main body are equipped with upper cover plate, and the body top is additionally provided with recessed
Groove, the groove be used for install foil gauge, the body side is internally provided with annular buckling groove, be equiped with the main body by
Power rotatable part, the stress rotatable part are clamped with annular buckling groove；
The stress rotatable part includes parallel force rod, built-in rod, elastic component and locating piece, the parallel force rod
End is equipped with location hole, i.e., described location hole is arranged on the side face on the outside of end.The built-in rod is arranged on parallel stress boom end
Inside, elastic component is equiped with the built-in rod, the built-in rod is equipped with the cavity accommodated for elastic component, when elastic component is forced
During contracting, in retraction cavity.The elastic component end is equipped with locating piece, and the locating piece is adapted with the location hole, described fixed
Position part is arranged in annular buckling groove.It is adapted and refers to, the bigger location hole of locating piece diameter, finally withstands on location hole, expose
Positioning bore portion is stuck in annular buckling groove.The parallel force rod is two.
What the mode of the belt force sensor measurement harness tension was realized in：In the groove of elastic body
Place's patch foil gauge, the tension force of safety belt is delivered to elastic body by parallel force rod during test.Parallel force rod is rotatable to be subtracted
Influence caused by rubbing during small measurement, and small deformation occurs, foil gauge experiences deformation, and resistance changes and passes through Wheatstone bridge
Amplification, is then changed into measurable electric signal output.
Two parallel force rods of the belt force sensor are due to intraware collective effect so that sensor makes
Used time, parallel force rod ensure stressing conditions while being rotated with the pulling of safety belt, i.e. safety belt will not be because of drawing
And frictional force is produced, so as to improve measurement accuracy.
The parallel stress boom end is additionally provided with circular hole, and the circular hole is arranged on the outside of location hole, i.e., described circular hole is arranged on phase
Than location hole from force rod top surface closer to one at, the circular hole is more than location hole.It is fixed that the circular hole is used to import locating piece
In the hole of position.The elastic component is spring.The locating piece is steel ball.
The body side is equipped with the cover board for being used for being connected with detection device, and the cover board includes inside cover plate and outboard cover
Plate.The body side is equipped with the tension disc for fixed test equipment.Installed by the dismounting of two parallel force rods
Full band measures, easy to operate.
The tension disc is used for the stretching resistance that fixed test equipment (referring in particular to electric wire cable) provides sensor, avoids touching
Hit experiment process center line detection device (especially electricity refers to cable) and pull and come off.
Cover board and tension disc can effectively prevent pullling when cable is replaced.Also, when cable damages, user can be with
It is rapid at any time to replace, so as to not influence the use of test equipment.
The main body is equipped with annular buckling groove with parallel force rod junction.
The belt force sensor is used for the measurement of belt force in crash tests, using with intensity Gao Ermi
Degree and small, the titanium alloy material of good mechanical property so that metal material has preferable strain effects in measurement process.
The belt force sensor is used for the measurement of belt force in crash tests, and all surfaces are all through overground
Light processing, to prevent damage dummy or bag material, while traction and frictional error is eliminated, protection is expensive on smooth surface
Crash tests dummy it is without damage.
The main body is provided with symmetrical through hole.Open up through hole to be used to reduce quality itself, reduce effect of inertia.
Due to being using above technical scheme, technique effect of the invention：The present invention need not be fixed in the car on wall,
It is installed, is very easy to use.
Overall structure of the present invention is simple, small, and internal part stress is rotatable, can more fully be tested.Behaviour
Make easily and be not easy to be influenced by space and external environment, locking is firm, can compressive resistance it is big, have enough impact strengths, it is practical
Property is strong, especially meets vehicle impact testing requirement.
The realization of spinfunction
Brief description of the drawings
Fig. 1 is belt force sensor schematic diagram of the present invention；
Fig. 2 is belt force sensor explosive view of the present invention；
Fig. 3 is the structure diagram of belt force sensor main body of the present invention；
Fig. 4 is the top view of belt force sensor of the present invention；
Fig. 5 is the structure diagram of the parallel force rod of belt force sensor of the present invention；
Fig. 6 is the steel ball mounting means schematic diagram of the parallel stress of belt force sensor of the present invention.
In figure：1- main bodys；The parallel force rods of 2-；3- inside cover plates；4- balustrade dechings；5- tension discs；6- grooves；7- leads to
Hole；8- upper cover plates；9- built-in rods；10- springs；11- steel balls；12- annular buckling grooves；13- location holes；14- circular holes；15- screw threads
Hole.
Embodiment
The present invention is described in more detail with reference to the accompanying drawings and detailed description.
Structure of the present invention is as follows：
A kind of belt force sensor, the main body 1 are equipped with upper cover plate 8, and 1 top of main body is additionally provided with groove 6, institute
State groove 6 be used for install foil gauge, 1 side of main body is internally provided with annular buckling groove 12, be equiped with the main body 1 by
Power rotatable part, the stress rotatable part are clamped with annular buckling groove 12；
The stress rotatable part includes parallel force rod 2, built-in rod 9, elastic component and locating piece, the parallel stress
2 end of bar is equipped with location hole 13, and the location hole 13 is arranged on the side face on the outside of end.The built-in rod 9 is arranged on parallel force rod 2
The inside of end, the built-in rod 9 is interior to be equipped with elastic component, and the built-in rod 9 is equipped with the cavity accommodated for elastic component, works as elastic component
During forced compression, in retraction cavity.The elastic component end is equipped with locating piece, and the locating piece is fitted with 13 phase of location hole
Match somebody with somebody, the locating piece 13 is arranged in annular buckling groove 12.
2 end of parallel force rod is additionally provided with circular hole 14, and the circular hole 14 is arranged on and is pushed up compared to location hole 13 from force rod 2
Face closer to one at, the circular hole 14 is more than location hole 13.The circular hole 14 is used to import locating piece in location hole 13.
The elastic component is spring 10.The locating piece is steel ball 11.
1 side of main body is equipped with the cover board for being used for being connected with detection device, and the cover board includes inside cover plate 3 and outside
Cover board 4.
1 side panel of main body is equipped with the tension disc 5 for fixed test equipment.
Institute's main body 1 is provided with symmetrical through hole 7.Open up through hole to be used to reduce quality itself, reduce effect of inertia.
The main body 1 is equipped with annular buckling groove 12 with parallel 2 junction of force rod.
The belt force sensor of the present invention is installed by following step：
1st, by the weldering of chip, other components and connecting wire on circuit boards, circuit board is fixed on 1 bottom of main body, strain
Piece is affixed at the two of elastic body 1 at groove 6, Parallel Symmetric, and connection cables.
2nd, fixed by the screw of upper cover plate 8, circuit board, foil gauge and cable are covered inside sensor main body 1.
3rd, cable passes through through hole 7, inside cover plate 3, balustrade deching 4 and the tension disc 5 in main body and extraneous detection device
Connection.
4th, the tension disc 5 is used for the stretching resistance that fixed cable provides sensor, avoids the cable during impact test
Come off by pullling.
5th, have around the same end of parallel force rod 2 location hole 13 and 14,3 hole sizes of circular hole it is identical respectively with
3 steel balls 11 coordinate, which is slightly less than steel ball, another circular hole 14 is more slightly larger than 11 diameter of steel ball, spring 10 and steel ball
11, which are each passed through circular hole at this, is pressed into built-in rod 9, then rotates 120 degree, is pressed into second steel ball and spring 10, then rotate 120
Degree, is pressed into the 3rd steel ball and spring 10, finally by internal rod 9 toward sinciput, until steel ball 11 is stuck at three holes.
6th, 9 afterbody of built-in rod is provided with threaded hole 15 and facilitates the stretching of component spring 10 and steel ball 11 is reached designated position,
Facilitate installation and debugging, after installing, screw is back-outed.
7th, after safety belt is placed, then parallel force rod 2 is inserted into main body 1, steel ball 11 is stuck in the annular buckling groove 12 of main body 1
Afterwards, harness tension test is then carried out.
Above installation steps can make the appropriate adjustments according to practical operation.
The rotation mode of the parallel force rod 2 of the belt force sensor is achieved in that three steel balls and three
Root spring 10 is placed in built-in rod 9, and built-in rod 9 is filled in the afterbody of parallel force rod 2, and three steel balls are acted on by spring force
And withstand on the location hole 13 of force rod, and some is protruded, parallel force rod 2 insertion main body 1 after installation is complete, at this time three
Steel ball card is in the annular buckling groove 12 of main body 1 so that in measurement, parallel force rod 2 can with the pulling of safety belt and
Rotation.Because its circumferential direction is without constraint, can rotate, and axially there is the restraining force of fixed size, make its fixed, it is parallel by
Power bar 2 ensures stressing conditions while being rotated with the pulling of safety belt, i.e. safety belt will not produce friction because of drawing
Power, so as to improve measurement accuracy.
It is axial then can not be moved easily since steel ball 11 is stuck in the annular buckling groove 12 of main body 1, it is necessary to have sufficiently large
External pull can just be pulled out.
The foregoing is only a description of the preferred application of the present invention, but cannot solve to be limitations on claims,
The structure of the present invention can have other changes, be not limited to said structure.In short, the guarantor of all independent claims in the present invention
The various change made in the range of shield is within the scope of the present invention.
Claims (7)
1. a kind of belt force sensor, including main body, the main body is equipped with upper cover plate, and the body top is additionally provided with recessed
Groove, the groove are used to install foil gauge, it is characterised in that the body side is internally provided with annular buckling groove, the master
Stress rotatable part is equiped with vivo, and the stress rotatable part is clamped with annular buckling groove；
The stress rotatable part includes parallel force rod, built-in rod, elastic component and locating piece, the parallel stress boom end
Equipped with location hole, the built-in rod is arranged on the inside of parallel stress boom end, and the built-in rod is equiped with elastic component, the elasticity
Part end is equipped with locating piece, and the locating piece is adapted with the location hole, and the locating piece is arranged in annular buckling groove.
2. a kind of belt force sensor as claimed in claim 1, it is characterised in that the parallel stress boom end is also set
There is circular hole, the circular hole is arranged on the outside of location hole, and the circular hole is more than location hole.
A kind of 3. belt force sensor as claimed in claim 1, it is characterised in that the body side be equipped be used for
The cover board that detection device is connected, the cover board include inside cover plate and balustrade deching.
4. a kind of belt force sensor as claimed in claim 1, it is characterised in that the body side, which is equipped with, to be used for admittedly
The tension disc of regular inspection measurement equipment.
5. a kind of belt force sensor as claimed in claim 1, it is characterised in that the main body is provided with symmetrical logical
Hole.
6. a kind of belt force sensor as claimed in claim 1 or 2, it is characterised in that the elastic component is spring.
7. a kind of belt force sensor as claimed in claim 1 or 2, it is characterised in that the locating piece is steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711448463.4A CN108007628A (en) | 2017-12-27 | 2017-12-27 | A kind of belt force sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711448463.4A CN108007628A (en) | 2017-12-27 | 2017-12-27 | A kind of belt force sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108007628A true CN108007628A (en) | 2018-05-08 |
Family
ID=62061772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711448463.4A Pending CN108007628A (en) | 2017-12-27 | 2017-12-27 | A kind of belt force sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108007628A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012103979B3 (en) * | 2012-05-07 | 2013-10-17 | mg-sensor GmbH | Belt force transducer for measuring occurred tensile forces on safety belts of vehicles, has base body which has execution for safety belt, where execution is limited on both sides of counter bearings |
| CN207585818U (en) * | 2017-12-27 | 2018-07-06 | 杭州集普科技有限公司 | A kind of belt force sensor |
-
2017
- 2017-12-27 CN CN201711448463.4A patent/CN108007628A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012103979B3 (en) * | 2012-05-07 | 2013-10-17 | mg-sensor GmbH | Belt force transducer for measuring occurred tensile forces on safety belts of vehicles, has base body which has execution for safety belt, where execution is limited on both sides of counter bearings |
| CN207585818U (en) * | 2017-12-27 | 2018-07-06 | 杭州集普科技有限公司 | A kind of belt force sensor |
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