CN205374167U - Detection apparatus for measure meeting an emergency of sample production - Google Patents
Detection apparatus for measure meeting an emergency of sample production Download PDFInfo
- Publication number
- CN205374167U CN205374167U CN201521075614.2U CN201521075614U CN205374167U CN 205374167 U CN205374167 U CN 205374167U CN 201521075614 U CN201521075614 U CN 201521075614U CN 205374167 U CN205374167 U CN 205374167U
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- China
- Prior art keywords
- extension rod
- carbon fiber
- detecting device
- stretching stress
- bracket
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a detection apparatus for measure meeting an emergency of sample production, this detection device includes: installing support, extension rod lock chamber support, extension rod bracket, laser displacement sensor, extension rod pillar, carbon fiber extension rod and mark target, installing support and metal tensile stress relaxation testing machine's one end fixed connection, the other end fixed connection of extension rod lock chamber support and testing machine, the extension rod bracket sets up the top at the testing machine, laser displacement sensor sets up the top at the installing support, the extension rod pillar sets up the top at the extension rod bracket, the carbon fiber extension rod passes the extension rod pillar, and both ends are followed extension rod pillar zhongshan respectively and are stretched out, the mark target cup joints the tip of the one end that corresponds at carbon fiber extension rod and laser displacement sensor, the other end and the extension rod lock chamber support fixed connection of carbon fiber extension rod. Use the utility model discloses can accurately detect measuring meeting an emergency of sample production at metal tensile stress relaxation test in -process.
Description
Technical field
This utility model relates to civil engineering detection technique field, particularly relates to a kind of detecting device measuring the strain that sample produces.
Background technology
Metal stretching stress relaxometer is primarily used for the testing equipment of the relaxation property of detection compressor wire, rod iron and steel strand wires." steel strand wires for prestressed concrete (GB/T5224-2014) " national product standard that on April 1st, 2015 implements, refer to the national standard of " steel product for prestressed concrete test method (GB/T21839-2008) " implemented on November 1st, 2008, wherein the change of sample strain during test is proposed and be distinctly claimed.
It would therefore be highly desirable to propose a kind of device that can carry out accurately detecting in metal stretching stress relaxation test process and corresponding detection method to the stress measuring sample generation.
Utility model content
In view of this, this utility model provides a kind of detecting device measuring the strain that sample produces, such that it is able to the strain measuring sample generation is detected exactly in metal stretching stress relaxation test process.
The technical solution of the utility model is specifically achieved in that
A kind of detecting device measuring the strain that sample produces, this detecting device is arranged on metal stretching stress relaxometer, and this detecting device includes: mounting bracket, extension rod lock bracket, extension rod bracket, laser displacement sensor, extension rod pillar, carbon fiber extension rod and target；
Described mounting bracket is fixing with one end of metal stretching stress relaxometer to be connected；
Described extension rod lock bracket is fixing with the other end of described metal stretching stress relaxometer to be connected；
Described extension rod bracket is arranged on the top of described metal stretching stress relaxometer；
Described laser displacement sensor is arranged on the top of described mounting bracket；
Described extension rod pillar is arranged on the top of described extension rod bracket；
Described carbon fiber extension rod is through described extension rod pillar, and two ends are stretched out respectively from described extension rod pillar；
Described target is socketed in the end of described carbon fiber extension rod one end corresponding with described laser displacement sensor；
The other end of described carbon fiber extension rod is fixing with described extension rod lock bracket to be connected.
It is also preferred that the left described mounting bracket includes: locking member and installing rack；
Described locking member is annular, for described mounting bracket is fixed on the end of described metal stretching stress relaxometer；
Described installing rack is arranged on the top of described locking member, is used for fixing described laser displacement sensor.
It is also preferred that the left be provided with through hole on described locking member, described locking member is by the end being bolted to described metal stretching stress relaxometer through described through hole.
It is also preferred that the left described locking member is fixed on the leading screw of one end of described metal stretching stress relaxometer.
It is also preferred that the left described extension rod lock bracket includes: retaining ring and bracing frame；
Described retaining ring is annular, for described extension rod lock bracket is fixed on the end of described metal stretching stress relaxometer；
Support frame as described above, is connected for fixing with one end of described carbon fiber extension rod.
It is also preferred that the left the top of support frame as described above is provided with the buckling groove for placing also fixed carbon fiber elongation bar.
It is also preferred that the left described extension rod bracket includes: be arranged on multiple the bracers at the top of described metal stretching stress relaxometer by predetermined interval；
The bottom of described bracer is provided with the first groove, for described bracer is connected to the top of described metal stretching stress relaxometer；
The top of described bracer is provided with the second groove, connects described extension rod pillar for holder.
It is also preferred that the left described extension rod pillar includes: sleeve pipe and the multiple linear bearings being arranged on according to predetermined interval in described sleeve pipe；
The external diameter of described linear bearing is less than or equal to the internal diameter of described sleeve pipe；
Described sleeve pipe is provided with multiple top wire hole corresponding with each linear bearing；Each linear bearing is by being fixed in described sleeve pipe through the jackscrew of top wire hole；
The middle part of described linear bearing is provided for the through hole of carbon fiber extension rod traverse.
It is also preferred that the left be provided with two top wire holes corresponding to each linear bearing；90 ° of said two top wire hole interval.
It is also preferred that the left one end of described target is provided with installation through hole, for described target being socketed in the end of described carbon fiber extension rod.
As seen from the above technical solution, in the technical solution of the utility model, owing to have employed non-contact laser measurement method, it is provided with laser displacement sensor, carbon fiber extension rod and target, make when the frame of sample or metal stretching stress relaxometer produces displacement, it is possible to obtained the numerical value of this displacement by described laser displacement sensor measurement；Subsequently, can be calculated according to the numerical value of this displacement, complete sample strain measurement, such that it is able to the strain measuring sample generation is detected exactly in metal stretching stress relaxation test process, solve measurement gauge length length of the prior art, certainty of measurement is high, measurement resolution is high, measure the highly difficult requirements such as time length, there is precision height, resolving power is high, temperature drift is little, drift is little advantage, and can carry out for a long time measuring in real time and accurately.
Additionally, in the technical solution of the utility model, owing to carbon fiber extension rod is to adopt carbon fibre material to process, and carbon fibre material thermal coefficient of expansion is low, therefore the impact by epidemic disaster change is little, and carbon fiber extension rod is smooth, can freely produce displacement between the linear bearing of extension rod pillar.
Accompanying drawing explanation
Fig. 1 is the structural representation of the detecting device being arranged on metal stretching stress relaxometer in this utility model embodiment.
Fig. 2 is the front of the mounting bracket in this utility model embodiment, side schematic view.
Fig. 3 is the front of extension rod lock bracket in this utility model embodiment, side schematic view.
Fig. 4 is the structural representation of the extension rod bracket in this utility model embodiment.
Fig. 5 is the cross section of extension rod pillar in this utility model embodiment, side generalized section.
Fig. 6 is the cross section of the target in this utility model embodiment, side generalized section.
Detailed description of the invention
For making the technical solution of the utility model and advantage clearly understand, below in conjunction with drawings and the specific embodiments, this utility model is described in further detail.
Fig. 1 is the structural representation of the detecting device being arranged on metal stretching stress relaxometer in this utility model embodiment.As it is shown in figure 1, the detecting device measuring the strain that sample produces being arranged on metal stretching stress relaxometer in this utility model embodiment includes: mounting bracket 11, extension rod lock bracket 12, extension rod bracket 13, laser displacement sensor 14, extension rod pillar 15, carbon fiber extension rod 16 and target 17；
Described mounting bracket 11 is fixing with one end of metal stretching stress relaxometer 20 to be connected；
Described extension rod lock bracket 12 is fixing with the other end of described metal stretching stress relaxometer 20 to be connected；
Described extension rod bracket 13 is arranged on the top of described metal stretching stress relaxometer 20；
Described laser displacement sensor 14 is arranged on the top of described mounting bracket 11；
Described extension rod pillar 15 is arranged on the top of described extension rod bracket 13；
Described carbon fiber extension rod 16 is through described extension rod pillar 15, and two ends are stretched out respectively from described extension rod pillar 15；
Described target 17 is socketed in the end of described carbon fiber extension rod 16 one end corresponding with described laser displacement sensor 14；
The other end of described carbon fiber extension rod 16 is fixing with described extension rod lock bracket 12 to be connected.
Owing to the range finding of laser displacement sensor is less, and the sample 21 of metal stretching stress relaxation test is larger in size, and the laser beam being therefore generally difficult to directly be sent by laser displacement sensor gets to the other end from one end of metal stretching stress relaxometer.Additionally, consider that the thermal coefficient of expansion of carbon fibre material is less, therefore, the technical solution of the utility model use carbon fiber bar as extension rod, one end of this carbon fiber extension rod is locked at the tail end of metal stretching stress relaxometer by extension rod lock bracket, the other end is then socketed a target, it is directed at described laser displacement sensor, the laser beam that laser displacement sensor is launched can directly be penetrated on described target, and by the distance controlling of described laser displacement sensor to target in effective finding range of this laser displacement sensor.Such as, requirement according to test standard, when the test starting force on metal stretching stress relaxometer is added to specified load, can first manually adjust the distance (this distance is range finding) between target end face and laser displacement sensor, then again extension rod lock bracket is locked on metal stretching stress relaxometer, thereby may be ensured that within the effective range that above-mentioned range finding is always positioned at described laser displacement sensor.
Owing to laser displacement sensor is fixed on one end of metal stretching stress relaxometer by mounting bracket, and one end of carbon fiber extension rod is fixed on the other end of metal stretching stress relaxometer (being namely not provided with one end of laser displacement sensor) by extension rod lock bracket, described target is then socketed in the other end of described carbon fiber extension rod, therefore, in process of the test, when the frame of sample or metal stretching stress relaxometer produces change in displacement, between target with laser displacement sensor, also corresponding displacement variable will be produced.Now, can measure, by laser measurement triangle principle, the numerical value obtaining this displacement, and collect host computer and be recorded, such that it is able to the above-mentioned change in displacement produced in process of the test is carried out in real time, measures accurately.
It addition, Fig. 2 is the front of the mounting bracket in this utility model embodiment, side schematic view.As in figure 2 it is shown, it is also preferred that the left in specific embodiment of the utility model, described mounting bracket 11 can also include: locking member 111 and installing rack 112；
Described locking member 111 is annular, for described mounting bracket 11 is fixed on the end of described metal stretching stress relaxometer 20；
Described installing rack 112 is arranged on the top of described locking member 111, is used for fixing described laser displacement sensor 14.
It is also preferred that the left in specific embodiment of the utility model, described locking member 111 is provided with through hole 113, described locking member 111 is by the end being bolted to described metal stretching stress relaxometer 20 through described through hole 113.
It is also preferred that the left in specific embodiment of the utility model, described locking member 111 is fixed on the leading screw 22 of one end of described metal stretching stress relaxometer 20.
It addition, Fig. 3 is the front of extension rod lock bracket in this utility model embodiment, side schematic view.As it is shown on figure 3, it is also preferred that the left in specific embodiment of the utility model, described extension rod lock bracket 12 can also include: retaining ring 121 and bracing frame 122；
Described retaining ring 121 is annular, for described extension rod lock bracket 12 is fixed on the end of described metal stretching stress relaxometer 20；
Support frame as described above 122, is connected for fixing with one end of described carbon fiber extension rod 16.
Preferably, in specific embodiment of the utility model, the top of support frame as described above 122 is provided with the buckling groove 123 for placing also fixed carbon fiber elongation bar 16, such that it is able to one end of described carbon fiber extension rod 16 is locked and is fixed on described extension rod lock bracket 12.
It addition, the structural representation that Fig. 4 is the extension rod bracket in this utility model embodiment.As shown in Figure 4, it is advantageous to, in specific embodiment of the utility model, described extension rod bracket 13 may include that multiple the bracers 131 at the top being arranged on described metal stretching stress relaxometer by predetermined interval；
The bottom of described bracer 131 is provided with the first groove 132, for described bracer 131 is connected to the top of described metal stretching stress relaxometer 20；
The top of described bracer 131 is provided with the second groove 133, connects described extension rod pillar 15 for holder.
Therefore, in the technical solution of the utility model, it is possible to process the first groove of correspondence according to the frame dimensions of metal stretching stress relaxometer, the second groove of correspondence is gone out according to the dimensioned of extension rod pillar.
It is also preferred that the left in specific embodiment of the utility model, described bracer is unit of plastic.
In the technical solution of the utility model, above-mentioned extension rod bracket may be used for supporting carbon fiber extension rod and extension rod pillar, it is prevented that the amount of deflection that carbon fiber extension rod produces because of the reason such as deadweight and length, and make carbon fiber extension rod move axially freedom.
It addition, Fig. 5 is the cross section of extension rod pillar in this utility model embodiment, side generalized section.As it is shown in figure 5, it is also preferred that the left in specific embodiment of the utility model, described extension rod pillar 15 includes: sleeve pipe 151 and be arranged on the multiple linear bearings 152 in described sleeve pipe 151 according to predetermined interval；
The external diameter of described linear bearing 152 is less than or equal to the internal diameter of described sleeve pipe 151；
Described sleeve pipe 151 is provided with multiple top wire hole 153 corresponding with each linear bearing 152；Each linear bearing 152 is by being fixed in described sleeve pipe 151 through the jackscrew of top wire hole 153；
The middle part of described linear bearing 152 is provided for the through hole 153 of carbon fiber extension rod 16 traverse.
It is also preferred that the left in specific embodiment of the utility model, be provided with 4 linear bearings in described sleeve pipe；Wherein, two linear bearings being arranged on sleeve pipe two ends are fixed on the position of distance sleeve end face 15～30mm.Therefore, two other linear bearing then can be uniformly distributed according to the spacing being arranged between two linear bearings at sleeve pipe two ends.
It is also preferred that the left in specific embodiment of the utility model, be provided with two top wire holes corresponding to each linear bearing；90 ° of said two top wire hole interval.Therefore, by jackscrew through the top wire hole on sleeve pipe, each linear bearing can be held out against on the unidirectional position of internal surface of sleeve pipe.
It is also preferred that the left in specific embodiment of the utility model, described sleeve pipe is rustless steel sleeve pipe.
In the technical solution of the utility model; can by the carbon fiber extension rod through hole through the linear bearing of described extension rod pillar; such that it is able to carbon fiber extension rod carried out support and protection by this extension rod pillar; ensure the levelness of carbon fiber extension rod; ensure the coaxial of carbon fiber extension rod; reduce deadweight the amount of deflection preventing carbon fiber extension rod from producing because of reasons such as deadweight and length, and make carbon fiber extension rod can produce free displacement relative to extension rod pillar.Meanwhile, also can reduce the external environment impact on measurement data, such as test the wind of room conditioning and the extraneous vibration etc. produced.
It addition, Fig. 6 is the cross section of the target in this utility model embodiment, side generalized section.As shown in Figure 6, it is advantageous to, in specific embodiment of the utility model, one end of described target 17 is provided with installing hole 171, for described target 17 is socketed in the end of described carbon fiber extension rod 16.
It is also preferred that the left in specific embodiment of the utility model, described target is rustless steel target.
In the technical solution of the utility model, one end close at carbon fiber extension rod and laser displacement sensor has been socketed a target, the laser that this laser displacement sensor sends can direct projection on the surface of this target.Therefore, in the technical solution of the utility model, need to ensure that target is smooth, smooth towards the end face of laser displacement sensor, and need to firmly install in carbon fiber rod end surface, it is prevented that the movement in any direction occurs.
In sum, in the technical solution of the utility model, owing to have employed non-contact laser measurement method, it is provided with laser displacement sensor, carbon fiber extension rod and target, make when the frame of sample or metal stretching stress relaxometer produces displacement, it is possible to obtained the numerical value of this displacement by described laser displacement sensor measurement；Subsequently, can be calculated according to the numerical value of this displacement, complete sample strain measurement, such that it is able to the strain measuring sample generation is detected exactly in metal stretching stress relaxation test process, solve measurement gauge length length of the prior art, certainty of measurement is high, measurement resolution is high, measure the highly difficult requirements such as time length, there is precision height, resolving power is high, temperature drift is little, drift is little advantage, and can carry out for a long time measuring in real time and accurately.
Additionally, in the technical solution of the utility model, owing to carbon fiber extension rod is to adopt carbon fibre material to process, and carbon fibre material thermal coefficient of expansion is low, therefore the impact by epidemic disaster change is little, and carbon fiber extension rod is smooth, can freely produce displacement between the linear bearing of extension rod pillar.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any amendment of making, equivalent replacements, improvement etc., should be included within the scope that this utility model is protected.
Claims (10)
1. the detecting device measuring the strain that sample produces, it is characterized in that, this detecting device is arranged on metal stretching stress relaxometer, and this detecting device includes: mounting bracket, extension rod lock bracket, extension rod bracket, laser displacement sensor, extension rod pillar, carbon fiber extension rod and target；
Described mounting bracket is fixing with one end of metal stretching stress relaxometer to be connected；
Described extension rod lock bracket is fixing with the other end of described metal stretching stress relaxometer to be connected；
Described extension rod bracket is arranged on the top of described metal stretching stress relaxometer；
Described laser displacement sensor is arranged on the top of described mounting bracket；
Described extension rod pillar is arranged on the top of described extension rod bracket；
Described carbon fiber extension rod is through described extension rod pillar, and two ends are stretched out respectively from described extension rod pillar；
Described target is socketed in the end of described carbon fiber extension rod one end corresponding with described laser displacement sensor；
The other end of described carbon fiber extension rod is fixing with described extension rod lock bracket to be connected.
2. detecting device according to claim 1, it is characterised in that described mounting bracket includes: locking member and installing rack；
Described locking member is annular, for described mounting bracket is fixed on the end of described metal stretching stress relaxometer；
Described installing rack is arranged on the top of described locking member, is used for fixing described laser displacement sensor.
3. detecting device according to claim 2, it is characterised in that:
Being provided with through hole on described locking member, described locking member is by the end being bolted to described metal stretching stress relaxometer through described through hole.
4. the detecting device according to Claims 2 or 3, it is characterised in that:
Described locking member is fixed on the leading screw of one end of described metal stretching stress relaxometer.
5. detecting device according to claim 1, it is characterised in that described extension rod lock bracket includes: retaining ring and bracing frame；
Described retaining ring is annular, for described extension rod lock bracket is fixed on the end of described metal stretching stress relaxometer；
Support frame as described above, is connected for fixing with one end of described carbon fiber extension rod.
6. detecting device according to claim 5, it is characterised in that:
The top of support frame as described above is provided with the buckling groove for placing also fixed carbon fiber elongation bar.
7. detecting device according to claim 1, it is characterised in that described extension rod bracket includes: be arranged on multiple the bracers at the top of described metal stretching stress relaxometer by predetermined interval；
The bottom of described bracer is provided with the first groove, for described bracer is connected to the top of described metal stretching stress relaxometer；
The top of described bracer is provided with the second groove, connects described extension rod pillar for holder.
8. detecting device according to claim 1, it is characterised in that described extension rod pillar includes: sleeve pipe and the multiple linear bearings being arranged on according to predetermined interval in described sleeve pipe；
The external diameter of described linear bearing is less than or equal to the internal diameter of described sleeve pipe；
Described sleeve pipe is provided with multiple top wire hole corresponding with each linear bearing；Each linear bearing is by being fixed in described sleeve pipe through the jackscrew of top wire hole；
The middle part of described linear bearing is provided for the through hole of carbon fiber extension rod traverse.
9. detecting device according to claim 8, it is characterised in that:
Each linear bearing is provided with two top wire holes；90 ° of said two top wire hole interval.
10. detecting device according to claim 1, it is characterised in that:
One end of described target is provided with installation through hole, for described target is socketed in the end of described carbon fiber extension rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521075614.2U CN205374167U (en) | 2015-12-22 | 2015-12-22 | Detection apparatus for measure meeting an emergency of sample production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521075614.2U CN205374167U (en) | 2015-12-22 | 2015-12-22 | Detection apparatus for measure meeting an emergency of sample production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205374167U true CN205374167U (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521075614.2U Withdrawn - After Issue CN205374167U (en) | 2015-12-22 | 2015-12-22 | Detection apparatus for measure meeting an emergency of sample production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205374167U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486579A (en) * | 2015-12-22 | 2016-04-13 | 中冶建筑研究总院有限公司 | Detection device and detection method for measuring strain generated by sample |
| CN109253902A (en) * | 2017-07-13 | 2019-01-22 | 鞍钢股份有限公司 | An a kind of tensile test specimen scale distance survey stroke device and method |
-
2015
- 2015-12-22 CN CN201521075614.2U patent/CN205374167U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486579A (en) * | 2015-12-22 | 2016-04-13 | 中冶建筑研究总院有限公司 | Detection device and detection method for measuring strain generated by sample |
| CN109253902A (en) * | 2017-07-13 | 2019-01-22 | 鞍钢股份有限公司 | An a kind of tensile test specimen scale distance survey stroke device and method |
| CN109253902B (en) * | 2017-07-13 | 2021-04-02 | 鞍钢股份有限公司 | Device and method for measuring and marking scale distance of tensile sample |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160706 Effective date of abandoning: 20180727 |