CN109283074A - A kind of mold measuring fastener W type spring mechanical property - Google Patents
A kind of mold measuring fastener W type spring mechanical property Download PDFInfo
- Publication number
- CN109283074A CN109283074A CN201811181400.1A CN201811181400A CN109283074A CN 109283074 A CN109283074 A CN 109283074A CN 201811181400 A CN201811181400 A CN 201811181400A CN 109283074 A CN109283074 A CN 109283074A
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- China
- Prior art keywords
- spring
- bottom plate
- column
- mechanical property
- mold
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 28
- 210000003414 extremity Anatomy 0.000 claims abstract description 23
- 239000011888 foil Substances 0.000 claims abstract description 23
- 210000003194 forelimb Anatomy 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 238000002474 experimental method Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a kind of molds for measuring fastener W type spring mechanical property, are made of bottom plate, front column, rear column, displacement sensor, foil gauge；Two of them are located at four angles that front column, two rear columns for being located at bottom plate rear in front of bottom plate are mounted on bottom plate, displacement sensor is installed among the front column on bottom plate, and it is located at limb lower end in spring, displacement sensor remains limb lower end in contact spring, foil gauge is pasted respectively in the top of two front columns, two foil gauges are located at the spring forelimb lower end of spring left and right ends, and curved limb is in the groove above rear column after spring.Through the mold when carrying out the fatigue experiment of spring, the displacement data of limb in the stress, strain data and measurement spring of spring forelimb can be measured simultaneously, provides for subsequent stress analysis and more accurately refers to.
Description
Technical field
The present invention relates to a kind of molds for measuring fastener W type spring mechanical property, and in particular to a kind of measurement fastener W type bullet
The mold of ess-strain displacement.
Background technique
Fastener is one of the core technology of ballastless track of high-speed railway structure, and spring is the key position of fastener, but at present
The actual life of domestic high-speed railway fastener elastic strip is substantially less than its design service life, it is therefore desirable to the material of spring
Material mechanical behavior is researched and analysed.The research of contacting piece spring mainly has theory analysis and Analysis of Experimental Stress two ways,
It can intuitively obtain fastening elastic rod mechanical state and performance by way of field experiment, but typical measuring arrangements or mold
The mechanical state index of its key position cannot be completely measured in fastening elastic rod fatigue experiment.
Summary of the invention
The present invention provides a kind of mold for measuring fastener W type spring mechanical property, can be used in measuring spring forelimb
The displacement data of limb in stress, strain data and measurement spring.
The technical scheme is that it is a kind of measure fastener W type spring mechanical property mold, by bottom plate 1, front column 2,
Rear column 3, displacement sensor 5, foil gauge 6 form；Two of them are located at front column 2, two of 1 front of bottom plate positioned at bottom plate 1
The rear column 3 at rear is mounted on four angles of bottom plate 1, and displacement sensor 5 is installed among the front column 2 on bottom plate 1, and position
The lower end limb c in spring, displacement sensor 5 remain the lower end limb c in contact spring, and the top of two front columns 2 is glued respectively
Foil gauge 6 is pasted, two foil gauges 6 are located at the lower end spring forelimb b of spring left and right ends, and curved limb a is on rear column 3 after spring
In the groove of side.
Realize that the apical side height of two foil gauges 6 is poor using iron gasket between the top surface and foil gauge 6 of the front column 2
For 0-3mm.
502 glue foil gauges 6 are respectively adopted in the top of described two front columns 2.
2 bottom of front column is connect by bolt 4 with bottom plate 1；Displacement sensor 5 is connect by bolt 4 with bottom plate 1.
The front column 2 is made of more piece, is connected between adjacent segment by bolt 4.
The surface of end in contact is handled using quenching technical under limb c in displacement sensor 5 and spring.
It is protected using casing the outside of institute's displacement sensors 5；Bottom plate 1, front column 2, rear column 3, casing are by cast iron
Or steel alloy is made, bottom plate 1, casing intensity are more than or equal to 400MPa；Front column 2,3 intensity of rear column are greater than 480MPa.
The bolt strength grade is more than or equal to 6.8 grades, bolt specification M10.
The beneficial effects of the present invention are: spring can be measured simultaneously when carrying out the fatigue experiment of spring by the mold
Stress, strain data and the displacement data for measuring limb in spring of forelimb, provide for subsequent stress analysis and more accurately join
It examines；The component in addition to die substrate is all made of detachable design simultaneously, when individual part is sent out as experiment constantly carries out
When raw abrasion even destroys, it can be replaced at any time, to reduce cost.
Detailed description of the invention
Fig. 1 is front view of the invention；
Fig. 2 is top view of the invention；
Fig. 3 is left view of the invention；
Fig. 4 is the structural schematic diagram (dimensional units: mm) of spring；
Each label in figure are as follows: 1- bottom plate, 2- front column, 3- rear column, 4- bolt, 5- displacement sensor, 6- foil gauge, a- spring
Curved limb, b- spring forelimb, limb in c- spring, d- spring inner arm, e- spring outer arm, f- spring is antecurvature limb afterwards.
Specific embodiment
With reference to the accompanying drawings and examples, the invention will be further described, but the contents of the present invention be not limited to it is described
Range.
Embodiment 1: as Figure 1-Figure 4, a kind of mold measuring fastener W type spring mechanical property, by bottom plate 1, preceding vertical
Column 2, rear column 3, displacement sensor 5, foil gauge 6 form；Two of them are located at front column 2, two of 1 front of bottom plate the bottom of positioned at
The rear column 3 at 1 rear of plate is commonly mounted on four angles (from the point of view of Fig. 1, front and back column bilateral symmetry) of bottom plate 1, displacement sensing
Device 5 is installed among the front column 2 on bottom plate 1, and is located at the lower end limb c in spring, and displacement sensor 5 remains contact bullet
Foil gauge 6 is pasted in the lower end limb c in item, the top of two front columns 2 respectively, and two foil gauges 6 are located at the bullet of spring left and right ends
The lower end forelimb b, curved limb a is in the groove of 3 top of rear column after spring, and groove is for fixing spring.
Realize that two are answered using iron gasket it is possible to further be arranged between the top surface and foil gauge 6 of the front column 2
Becoming the apical side height difference of piece 6 as 0-3mm(is 5mm as designed iron gasket, and the strain of the left and right sides is met by adjusting its quantity
The top surface spacing of piece between the two keeps foil gauge not easily to fall off between 0-3mm, is transmitted to power averagely on two limbs of left and right, no
Understand small one and large one).
502 glue foil gauges 6 are respectively adopted it is possible to further which the top of described two front columns 2 is arranged.
It is connect it is possible to further which 2 bottom of front column is arranged by bolt 4 with bottom plate 1；Displacement sensor 5 passes through
Bolt 4 is connect with bottom plate 1.
It is made of it is possible to further which the front column 2 is arranged more piece, is connected between adjacent segment by bolt 4.
It is used at quenching technical it is possible to further which the surface of end in contact under limb c in displacement sensor 5 and spring is arranged
Reason；Wear-resisting effect can be played.
It is possible to further be arranged, the outside of displacement sensors 5 is protected using casing；Bottom plate 1, is stood front column 2 afterwards
Column 3, casing are made of cast iron or steel alloy, and bottom plate 1, casing intensity are more than or equal to 400MPa；Front column 2,3 intensity of rear column
Greater than 480MPa.
It is more than or equal to 6.8 grades it is possible to further which the bolt strength grade is arranged, bolt specification M10.
The data that foil gauge 6 acquires are transmitted to host computer by strain gauge, obtain the stress data of spring forelimb b；
The strain data of spring forelimb b is obtained by the elasticity modulus of stress data and spring；The data acquired by displacement sensor 5
It is transmitted to host computer, is attained at the displacement data of limb c in spring.
Above in conjunction with attached drawing, the embodiment of the present invention is explained in detail, but the present invention is not limited to above-mentioned
Embodiment within the knowledge of a person skilled in the art can also be before not departing from present inventive concept
Put that various changes can be made.
Claims (8)
1. a kind of mold for measuring fastener W type spring mechanical property, it is characterised in that: by bottom plate (1), front column (2), rear column
(3), displacement sensor (5), foil gauge (6) composition；Two of them be located at front column (2) in front of bottom plate (1), two be located at bottom
The rear column (3) at plate (1) rear is mounted on four angles of bottom plate (1), before displacement sensor (5) is installed on bottom plate (1)
Column (2) is intermediate, and is located at limb (c) lower end in spring, and displacement sensor (5), which remains, contacts limb (c) lower end in spring, and two
The top of a front column (2) is pasted foil gauge (6) respectively, and two foil gauges (6) are located at the spring forelimb (b) of spring left and right ends
Lower end, curved limb (a) is in the groove above rear column (3) after spring.
2. the mold of measurement fastener W type spring mechanical property according to claim 1, it is characterised in that: the front column
(2) iron gasket is used between top surface and foil gauge (6) to realize the apical side height difference of two foil gauges (6) for 0-3mm.
3. the mold of measurement fastener W type spring mechanical property according to claim 1, it is characterised in that: before described two
502 glue foil gauges (6) are respectively adopted above column (2).
4. the mold of measurement fastener W type spring mechanical property according to claim 1, it is characterised in that: the front column
(2) bottom is connect by bolt (4) with bottom plate (1)；Displacement sensor (5) is connect by bolt (4) with bottom plate (1).
5. the mold of measurement fastener W type spring mechanical property according to claim 1, it is characterised in that: the front column
(2) it is made of more piece, is connected between adjacent segment by bolt (4).
6. the mold of measurement fastener W type spring mechanical property according to claim 1, it is characterised in that: displacement sensor
(5) surface with end in contact under limb (c) in spring is handled using quenching technical.
7. the mold of measurement fastener W type spring mechanical property according to claim 1, it is characterised in that: the displacement passes
It is protected using casing the outside of sensor (5)；Bottom plate (1), front column (2), rear column (3), casing are by cast iron or alloy steel
At bottom plate (1), casing intensity are more than or equal to 400MPa；Front column (2), rear column (3) intensity are greater than 480MPa.
8. the mold of measurement fastener W type spring mechanical property according to claim 4 or 5, it is characterised in that: the bolt
Strength grade is more than or equal to 6.8 grades, bolt specification M10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811181400.1A CN109283074A (en) | 2018-10-11 | 2018-10-11 | A kind of mold measuring fastener W type spring mechanical property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811181400.1A CN109283074A (en) | 2018-10-11 | 2018-10-11 | A kind of mold measuring fastener W type spring mechanical property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109283074A true CN109283074A (en) | 2019-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811181400.1A Pending CN109283074A (en) | 2018-10-11 | 2018-10-11 | A kind of mold measuring fastener W type spring mechanical property |
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| Country | Link |
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| CN (1) | CN109283074A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110018048A (en) * | 2019-04-22 | 2019-07-16 | 上海轨道交通检测技术有限公司 | I, three station fatigue test frock equipment of II type spring |
| CN113567101A (en) * | 2021-07-26 | 2021-10-29 | 北京铁科首钢轨道技术股份有限公司 | Multi-station elastic strip fatigue test device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512801A (en) * | 2013-09-23 | 2014-01-15 | 清华大学苏州汽车研究院（相城） | Tension force transducer |
| CN108106931A (en) * | 2018-01-17 | 2018-06-01 | 昆明理工大学 | A kind of test fixture for ω structure railway elastic bars |
| CN209215136U (en) * | 2018-10-11 | 2019-08-06 | 昆明理工大学 | A kind of mold measuring fastener W type spring mechanical property |
-
2018
- 2018-10-11 CN CN201811181400.1A patent/CN109283074A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512801A (en) * | 2013-09-23 | 2014-01-15 | 清华大学苏州汽车研究院（相城） | Tension force transducer |
| CN108106931A (en) * | 2018-01-17 | 2018-06-01 | 昆明理工大学 | A kind of test fixture for ω structure railway elastic bars |
| CN209215136U (en) * | 2018-10-11 | 2019-08-06 | 昆明理工大学 | A kind of mold measuring fastener W type spring mechanical property |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110018048A (en) * | 2019-04-22 | 2019-07-16 | 上海轨道交通检测技术有限公司 | I, three station fatigue test frock equipment of II type spring |
| CN113567101A (en) * | 2021-07-26 | 2021-10-29 | 北京铁科首钢轨道技术股份有限公司 | Multi-station elastic strip fatigue test device |
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