CN109974657A - A kind of connecting device for sensor and average value extensometer of average value extensometer - Google Patents
A kind of connecting device for sensor and average value extensometer of average value extensometer Download PDFInfo
- Publication number
- CN109974657A CN109974657A CN201910297699.5A CN201910297699A CN109974657A CN 109974657 A CN109974657 A CN 109974657A CN 201910297699 A CN201910297699 A CN 201910297699A CN 109974657 A CN109974657 A CN 109974657A
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- sensor
- slide bar
- sliding block
- connection sliding
- arm
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- 238000005259 measurement Methods 0.000 claims abstract description 75
- 229920001971 elastomer Polymers 0.000 description 12
- 239000000806 elastomer Substances 0.000 description 6
- 239000011888 foil Substances 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
Abstract
A kind of connecting device for sensor and average value extensometer of average value extensometer, the connecting device for sensor of average value extensometer is: be equipped with equipped with the left linking arm and right linking arm being parallel to each other, on rear side of left linking arm and right linking arm can only be bent up and down, cannot the curved connecting spring piece in front and back；Perpendicular left slide bar and right slide bar are respectively equipped on upper and right linking arm front side on front side of left linking arm, it is respectively equipped with the left connection sliding block and right connection sliding block that relatively left linking arm and right linking arm can horizontally slip on left slide bar and right slide bar, the fastening spring for pushing left connection sliding block and right connection sliding block relative motion is respectively equipped on left slide bar and right slide bar.The advantages that using average value extensometer made of above-mentioned apparatus, the present invention has structure simple, easy to use, and measurement data is accurate.
Description
Technical field
The present invention relates to material deformation measuring device, elaborating is that a kind of structure is simple, easy to use, measurement data essence
The connecting device for sensor of quasi- average value extensometer.
Background technique
It is known that existing extensometer is made of sensor, amplifier and logger three parts；Wherein sensor includes
Upper measurement arm, lower measurement arm, upper positioning clamping blade, lower positioning clamping blade and strain elastomer (stainless steel substrates), foil gauge
It is pasted on strain elastomer, gauge length locking device is equipped between upper measurement arm and lower measurement arm, gauge length locking device is equipped with fixed
Gauge length pin；The both ends of strain elastomer are separately fixed on one end of measurement arm and lower measurement arm；Upper positioning clamping blade and
Lower positioning clamping blade respectively with it is upper measurement arm and it is lower measurement arm the other end be connected, can be connected directly, can also through in order to
The extension arm for increasing gauge length is connected, or is connected through the adjustable extension arm of gauge length.In use, in order to by Sensor section with it is to be tested
Sample be connected, usually using rubber band connect.And in order to improve the accuracy of measurement, two extensometer left sides are used in measurement
The right side is symmetrically clamped in test specimens to be checked, forms average value extensometer, needs two sensors passing through rubber respectively in this way
Muscle connection, it is not only cumbersome, and position inaccurate, front and rear sides rubber band are it is difficult to ensure that blade centering is accurate；Rubber band holds
It is easy to aging, it needs to be replaced frequently；Rubber band is to be flexible coupling, it cannot be guaranteed that left and right blade is in one plane, measurement data is accurate
It spends low.
State Intellectual Property Office disclose one application No. is 2013200433259, a kind of entitled extensometer it is practical
Although new patent, the structure of the patent solve the defect connected using rubber band, but due to the first extensometer (left sensing
Device) it is fixedly connected with the second extensometer (right sensor) through the first gauge length bar, crank arm type bracket, the second gauge length bar, when work
One gauge length bar and the second gauge length bar are parallel, the displacement of left and right directions cannot occur, strong influence upper measurement arm and lower measurement
The front end of arm follows test specimens to be checked to move, and measurement error is big, and data accuracy is poor.
Summary of the invention
Present invention aim to address above-mentioned the deficiencies in the prior art, it is simple to provide a kind of structure, easy to use, measures number
According to the connecting device for sensor of accurately average value extensometer.
The present invention solves technical solution used by above-mentioned the deficiencies in the prior art:
A kind of connecting device for sensor of average value extensometer, it is characterised in that equipped with the left linking arm being parallel to each other and the right side
Linking arm, left linking arm and right linking arm rear side, which are equipped with, to be bent up and down, cannot the curved connecting spring piece in front and back；Zuo Lian
It connects and is respectively equipped with perpendicular left slide bar and right slide bar on upper and right linking arm front side on front side of arm, divide on left slide bar and right slide bar
Not She You relatively left linking arm and right the linking arm left connection sliding block and right connection sliding block that can horizontally slip, left slide bar and right slide bar
On be respectively equipped with the fastening spring for pushing left connection sliding block and right connection sliding block relative motion.
Heretofore described left slide bar and right slide bar are vertical with left linking arm and right linking arm respectively to be fixed on left company
It connects on front side of arm on upper and right linking arm front side, the setting that left connection sliding block and right connection sliding block can horizontally slip is on left slide bar and the right side
On slide bar, left slide bar left end and right slide bar right end are respectively equipped with left gear cap and right gear cap, the left side between left gear cap and left connection sliding block
Slide bar is equipped with the right slide bar between fastening spring, right gear cap and right connection sliding block and is equipped with fastening spring.
What heretofore described left slide bar and right slide bar can horizontally slip is threaded through upper and right on front side of left linking arm respectively
On on front side of linking arm；The left connection sliding block and right connection sliding block are separately fixed on left slide bar and right slide bar, and left connection is slided
Left slide bar between block and left linking arm is equipped with the right slide bar between fastening spring, right connection sliding block and right linking arm and is equipped with clamping
Spring.
A kind of average value extensometer, the sensor connection including left sensor, right sensor and two average value extensometers
Device, it is characterised in that the left connection sliding block and right connection sliding block of the connecting device for sensor of an average value extensometer respectively with
The upper measurement arm of left sensor is connected with the upper measurement arm of right sensor, the connecting device for sensor of another average value extensometer
Left connection sliding block and right connection sliding block be connected respectively with the lower measurement arm of the lower measurement arm of left sensor and right sensor.It will be left
Sensor and right sensor link into an integrated entity, form two average value extensometers.
The present invention is further improved, on the upper measurement arm of the left sensor and right sensor and/or left sensor and
Extension arm is respectively equipped on the lower measurement arm of right sensor, upper positioning clamping blade and lower positioning clamping blade are pacified through cantilever respectively
On corresponding extension arm；The left connection sliding block and right connection sliding block of the connecting device for sensor of one average value extensometer point
It is not connected with the cantilever on the upper measurement arm of cantilever and right sensor on the upper measurement arm of left sensor, another average value draws
Stretch the connecting device for sensor of meter left connection sliding block and right connection sliding block respectively with the cantilever on the lower measurement arm of left sensor
It is connected with the cantilever on the lower measurement arm of right sensor.The biggish calibration of a gauge length is formed away from average value extensometer.
The present invention is further improved, and the upper positioning clamping blade and lower positioning clamping blade respectively can through upper and lower position
The cantilever of tune is mounted on corresponding extension arm.Form the adjustable average value extensometer of gauge length.
When the average value extensometer for being connected as one two existing extensometers using the present invention, an average value is drawn
Stretch left connection sliding block and the upper measurement with the flowmeter sensor of extending in left side respectively of right connection sliding block of the connecting device for sensor of meter
Arm is connected with the upper measurement arm of the flowmeter sensor of extending on right side, the left company of the connecting device for sensor of another average value extensometer
Connect sliding block and right connection sliding block respectively with the lower measurement arm of the flowmeter sensor of extending in left side and extending under flowmeter sensor for right side
Arm is measured to be connected.To which the sensor of two existing extensometers to be connected as one, two average value extensometers are formed.It uses
When, to the left and right two sides pull extend flowmeter sensor (or extension arm), on two groups to be connected with sensor positioning clamping blade and under
Positioning clamping blade will separate, by test specimens to be checked be placed in two upper positioning clamping blades and two lower positioning clamping blades it
Between, after unclamping sensor (or extension arm), two upper positioning clamping blades and two lower positioning clamping blades are respectively respective
Fastening spring acts on lower relative motion, clamps sample to be detected.Test specimens to be checked are stretched when deforming, upper positioning clamping blade
Test specimens to be checked are followed to move up and down with lower positioning clamping blade, connecting spring piece is bent under the action of little force, upper fixed
Position clamping blade and lower positioning clamping blade moment under the action of fastening spring clamp test specimens to be checked, will not be due to its deformation
And be subjected to displacement, fastening spring provides necessary bending force for connecting spring piece.The present invention will not influence positioning clamping knife
Piece and lower positioning clamping blade follow the movement of test specimens to be checked, have structure simple, easy to use, measurement data is accurately excellent
Point.
Detailed description of the invention
Fig. 1 is a kind of schematic perspective view of the connecting device for sensor of average value extensometer in the present invention.
Fig. 2 is another schematic perspective view of the connecting device for sensor of average value extensometer in the present invention.
Fig. 3 is a kind of schematic perspective view that the average value extensometer of test specimens to be checked is clamped in the present invention.
Fig. 4 is another schematic perspective view that the average value extensometer of test specimens to be checked is clamped in the present invention.
Fig. 5 is another schematic perspective view of average value extensometer in the present invention.
Fig. 6 is the schematic diagram of internal structure of flowmeter sensor of extending in the present invention.
Specific embodiment
A kind of connecting device for sensor of average value extensometer, it is left equipped with the left linking arm and right linking arm being parallel to each other
Upper side or downside on rear side of linking arm and right linking arm be equipped with it is parallel with left linking arm and right linking arm upper side,
Can be bent up and down, cannot curved, the horizontally disposed connecting spring piece in front and back；On front side of left linking arm on upper and right linking arm front side
It is respectively equipped with the left slide bar and right slide bar of perpendicular (left and right directions setting), is respectively equipped on left slide bar and right slide bar relatively left
The left connection sliding block and right connection sliding block that linking arm and right linking arm can horizontally slip are respectively equipped on left slide bar and right slide bar and push away
Move the fastening spring of left connection sliding block and right connection sliding block with respect to (opposite) movement.
Embodiment 1
The connecting device for sensor of average value extensometer as shown in Figure 1, equipped with the left linking arm 7 and right company being parallel to each other
Arm 5 is connect, the upper side of 5 rear side of left linking arm 7 and right linking arm is equipped with parallel with left linking arm 7 and 5 upper side of right linking arm
, can only be bent up and down, cannot curved, the horizontally disposed connecting spring piece 6 in front and back；Upper and right connection on front side of left linking arm 7
The left slide bar 8 and right slide bar 4 of perpendicular left and right directions setting, left slide bar 8 in the present embodiment are respectively equipped on 5 front side of arm
With right slide bar 4 is vertical with left linking arm 7 and right linking arm 5 respectively is fixed on upper and right linking arm front side on front side of left linking arm
On, what left connection sliding block 9 and right connection sliding block 3 can horizontally slip is threaded through on left slide bar 8 and right slide bar 4, left 8 left end of slide bar and
Right 4 right end of slide bar is respectively equipped with left gear cap 11 and right gear cap 1, and the left slide bar 8 between left gear cap 11 and left connection sliding block 9 is equipped with folder
Tightly the right slide bar 4 between spring 10, right gear cap 1 and right connection sliding block 3 is equipped with fastening spring 2.In use, as shown in figure 3, by one
The left connection sliding block 9 and right connection sliding block 3 of the connecting device for sensor of average value extensometer in a the present embodiment respectively with a left side
The upper measurement arm 16 of the flowmeter sensor of extending of side is connected with the upper measurement arm of the flowmeter sensor of extending on right side, another the present embodiment
In average value extensometer connecting device for sensor overturning 180 degree after, by its left connection sliding block and right connection sliding block respectively with
The lower measurement arm of the flowmeter sensor of extending on right side is connected with the lower measurement arm 15 of the flowmeter sensor of extending in left side；To existing by two
There is the sensor of extensometer to be connected as one, forms an average value extensometer, as drawn using the average value in the present embodiment
The connecting device for sensor for stretching meter connects manufactured average value extensometer.
Embodiment 2
The connecting device for sensor of average value extensometer as shown in Figure 2, equipped with the left linking arm 7 and right company being parallel to each other
Connect arm 5, the upper side of 5 rear side of left linking arm 7 and right linking arm be equipped with it is parallel with left linking arm and right linking arm upper side,
Can only be bent up and down, cannot curved, the horizontally disposed connecting spring piece 6 in front and back；On front side of left linking arm before upper and right linking arm
The left slide bar 8 and right slide bar 4 of perpendicular left and right directions setting, left slide bar 8 and right cunning in the present embodiment are respectively equipped on side
What bar 4 can horizontally slip respectively is threaded through on front side of left linking arm on front side of upper and right linking arm；Left connection sliding block 9 and right connection are slided
Block 3 is separately fixed on the left end of left 8 right end of slide bar and right slide bar 4, on the left slide bar 8 between left connection sliding block 9 and left linking arm 7
Fastening spring 2 is equipped with equipped with the right slide bar 4 between fastening spring 10, right connection sliding block 3 and right linking arm 5.It is further improved, it is left
On left slide bar left end on the left of linking arm and right linking arm on the right side of right slide bar right end on be fixed with respectively auxiliary link block 13,
12, assist link block 13,12 and left connection sliding block, the cooperation of right connection sliding block to be connected with the arm of measurement up and down for flowmeter sensor of extending,
Keep left slide bar and right sliding bar more stable.In use, the sensor of the average value extensometer in a present embodiment is connected
The left connection sliding block 9 and right connection sliding block 3 of device respectively with the upper measurement arm 16 of the flowmeter sensor of extending in left side and drawing for right side
The upper measurement arm for stretching flowmeter sensor is connected, the overturning of the connecting device for sensor of the average value extensometer in another the present embodiment
After 180 degree, by its left connection sliding block and right connection sliding block respectively with the lower measurement arm of the flowmeter sensor of extending on right side and left side
Extend flowmeter sensor lower measurement arm 15 be connected；To which the sensor of two existing extensometers to be connected as one, one is formed
Average value extensometer.Structure as shown in Figure 4, as using the connecting device for sensor of the average value extensometer in the present embodiment
Average value extensometer made of connecting.
The sensor of average value extensometer as shown in Figure 5 is the sensing for having used average value extensometer of the invention
The distressed structure of device attachment device is connected to two adjustable extensometers of gauge length and the adjustable average value extensometer of manufactured gauge length
Sensor.The adjustable extensometer of two of them gauge length in the prior art is the upper measurement arm in flowmeter sensor 18 of extending under
Extension arm 23 is respectively equipped on measurement arm, extension arm 23, which is equipped with, to be slided up and down on it, the slide of adjusting position, on slide
Equipped with supporting cantilever, supporting cantilever is equipped with upper positioning clamping blade and lower positioning clamping blade, is existed by up and down adjustment slide
It is fixed behind position on extension arm 23 with bolt, and then adjusts the distance between upper positioning clamping blade and lower positioning clamping blade,
Carry out the adjusting of gauge length.The left connection sliding block and right connection sliding block 3 of the connecting device for sensor of average value extensometer of the invention
It being connected on two slides, one has been made with it, two slides are fixed on extension arm through adjustable above and below bolt, on
It states and has added guide chute in the supporting cantilever of the adjustable extensometer of gauge length, left linking arm and right linking arm front end are provided with and lead
The guide runner cooperated to sliding slot, runs more stable.The left connection for being equivalent to the connecting device for sensor of average value extensometer is sliding
The roll adjustment support rod of block and right connection sliding block through additional function is connected with the upper measurement arm for flowmeter sensor of extending or lower measurement arm.
When the average value extensometer for being connected as one two existing extensometers using the present invention, an average value is drawn
Stretch left connection sliding block and the upper measurement with the flowmeter sensor of extending in left side respectively of right connection sliding block of the connecting device for sensor of meter
Arm is connected with the upper measurement arm of the flowmeter sensor of extending on right side, the left company of the connecting device for sensor of another average value extensometer
Connect sliding block and right connection sliding block respectively with the lower measurement arm of the flowmeter sensor of extending in left side and extending under flowmeter sensor for right side
Arm is measured to be connected.To which the sensor of two existing extensometers to be connected as one, two average value extensometers are formed.It uses
When, to the left and right two sides pull extend flowmeter sensor (or extension arm), on two groups to be connected with sensor positioning clamping blade and under
Positioning clamping blade will separate, and test specimens 17 to be checked are placed in two upper positioning clamping blades and two lower positioning clamping blades
Between, after unclamping sensor (or extension arm), two upper positioning clamping blades and two lower positioning clamping blades are respectively respective
Fastening spring act on lower relative motion, clamp sample to be detected.Test specimens 17 to be checked are stretched when deforming, upper positioning clamping
Blade and lower positioning clamping blade follow test specimens to be checked to move up and down, and connecting spring piece is bent under the action of little force,
Upper positioning clamping blade and lower positioning clamping blade moment under the action of fastening spring clamp test specimens to be checked, will not be due to it
It deforms and is subjected to displacement, fastening spring provides necessary bending force for connecting spring piece.The present invention will not influence locating clip
It holds blade and lower positioning clamping blade follows the movement of test specimens to be checked, have structure simple, easy to use, measurement data is accurate
The advantages of.
The structure of heretofore described flowmeter sensor 18 of extending is varied, but includes upper measurement arm, lower measurement arm
With the elastomer for posting foil gauge.A kind of structure of flowmeter sensor of extending as shown in FIG. 6 is: being equipped with upper measurement arm 16 and lower survey
Arm 15 is measured, reset spring 19 is equipped between upper measurement arm 16 and lower measurement arm 15, upper measurement arm and lower measurement arm one end are equipped with patch
There is the elastomer 14 of foil gauge, elastomer 14 can be stainless steel substrates.Upper 16 middle part downside of measurement arm is equipped with upper mounting seat, lower survey
It measures 15 middle part upside of arm and is equipped with lower mounting seat 20, upper mounting seat and lower mounting seat 20 in the up-down direction can opposite sliding (the two
It is not opposite), the reset spring 19 is the spring leaf being in U-shape, and reset spring 19 is parallel with upper measurement arm and lower measurement arm, on
Mounting base, lower mounting seat are connected with two elastic arms of reset spring U-shaped respectively；Upper measurement arm and lower measurement arm are in reset spring
It under restriction effect, can only move up and down, be not easy front and back twisting, play a protective role to foil gauge.It is set on the upper measurement arm other end
There is lower locating piece 22, lower measurement arm is equipped with aligning receptacle, and lower locating piece 22 can slide up and down in aligning receptacle, lower measurement arm
It is equipped with mutually matched location hole with lower locating piece 22, positioning hole is equipped with dismountable fastening screw 21.It is fixed when unmeasured
Position bolt 21 be plugged in positioning hole by it is upper measurement arm and it is lower measurement arm the other end position, precisely determine gauge length when, prevent
The foil gauge of arm and lower measurement arm one end is measured in damage.
Claims (6)
1. a kind of connecting device for sensor of average value extensometer, it is characterised in that equipped with the left linking arm and right company being parallel to each other
Arm is connect, left linking arm and right linking arm rear side, which are equipped with, to be bent up and down, cannot the curved connecting spring piece in front and back；Left connection
It is respectively equipped with perpendicular left slide bar and right slide bar on upper and right linking arm front side on front side of arm, is distinguished on left slide bar and right slide bar
Equipped with left connection sliding block and right connection sliding block that relatively left linking arm and right linking arm can horizontally slip, on left slide bar and right slide bar
It is respectively equipped with the fastening spring for pushing left connection sliding block and right connection sliding block relative motion.
2. the connecting device for sensor of average value extensometer according to claim 1, it is characterised in that the left slide bar
With right slide bar is vertical with left linking arm and right linking arm respectively is fixed on front side of left linking arm on front side of upper and right linking arm, a left side
The setting that connection sliding block and right connection sliding block can horizontally slip is on left slide bar and right slide bar, left slide bar left end and right slide bar right end
It is respectively equipped with left gear cap and right gear cap, the left slide bar between left gear cap and left connection sliding block is equipped with fastening spring, right gear cap and the right side
Right slide bar between connection sliding block is equipped with fastening spring.
3. the connecting device for sensor of average value extensometer according to claim 1, it is characterised in that the left slide bar
It is threaded through on front side of left linking arm respectively on front side of upper and right linking arm with what right slide bar can horizontally slip；The left connection sliding block
It is separately fixed on left slide bar and right slide bar with right connection sliding block, the left slide bar between left connection sliding block and left linking arm is equipped with folder
Tightly the right slide bar between spring, right connection sliding block and right linking arm is equipped with fastening spring.
4. a kind of average value extensometer, the sensor including left sensor, right sensor and two average value extensometers connects dress
Set, it is characterised in that the left connection sliding block and right connection sliding block of the connecting device for sensor of an average value extensometer respectively with a left side
The upper measurement arm of sensor is connected with the upper measurement arm of right sensor, the connecting device for sensor of another average value extensometer
Left connection sliding block and right connection sliding block are connected with the lower measurement arm of the lower measurement arm of left sensor and right sensor respectively.
5. average value extensometer according to claim 4, it is characterised in that the left sensor and right sensor it is upper
Be respectively equipped with extension arm on measurement arm and/or on the lower measurement arm of left sensor and right sensor, upper positioning clamping blade and under
Positioning clamping blade is mounted on corresponding extension arm through cantilever respectively；The connecting device for sensor of one average value extensometer
Left connection sliding block and right connection sliding block are respectively and on the upper measurement arm of cantilever and right sensor on the upper measurement arm of left sensor
Cantilever be connected, the left connection sliding block and right connection sliding block of the connecting device for sensor of another average value extensometer respectively with a left side
Cantilever on the lower measurement arm of sensor is connected with the cantilever on the lower measurement arm of right sensor.
6. average value extensometer according to claim 5, it is characterised in that the upper positioning clamping blade and lower positioning
Clamping blade is mounted on corresponding extension arm through the adjustable cantilever in upper and lower position respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910297699.5A CN109974657A (en) | 2019-04-03 | 2019-04-03 | A kind of connecting device for sensor and average value extensometer of average value extensometer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910297699.5A CN109974657A (en) | 2019-04-03 | 2019-04-03 | A kind of connecting device for sensor and average value extensometer of average value extensometer |
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| CN109974657A true CN109974657A (en) | 2019-07-05 |
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| CN201910297699.5A Pending CN109974657A (en) | 2019-04-03 | 2019-04-03 | A kind of connecting device for sensor and average value extensometer of average value extensometer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984497A (en) * | 2021-10-15 | 2022-01-28 | 中国航发北京航空材料研究院 | Device and method for measuring deformation between holes of composite material D-shaped beam test piece |
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| CN209512826U (en) * | 2019-04-03 | 2019-10-18 | 威海汇智机电科技有限公司 | A kind of connecting device for sensor and average value extensometer of average value extensometer |
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|---|---|---|---|---|
| CN87213103U (en) * | 1987-09-02 | 1988-05-04 | 重庆大学 | Electric stretching or compressing deformation detecting device with double shaft |
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