CN202974233U - Installation structure of sample extensometer - Google Patents
Installation structure of sample extensometer Download PDFInfo
- Publication number
- CN202974233U CN202974233U CN 201320001978 CN201320001978U CN202974233U CN 202974233 U CN202974233 U CN 202974233U CN 201320001978 CN201320001978 CN 201320001978 CN 201320001978 U CN201320001978 U CN 201320001978U CN 202974233 U CN202974233 U CN 202974233U
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- screw
- sample
- extensometer
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Abstract
The utility model discloses an installation structure of a sample extensometer. The installation structure comprises screw rods, a base and fixing plates arranged at two ends of the base, wherein a groove concave inward is formed at the top end of the base, screw holes are symmetrically formed in the fixing plates and above the base, one side of each fixing plate far away from the base is provided with a round block, the center line of each round block is on the same straight line with the center line of each screw hole, the diameter of each round block is larger than the major diameter of each screw hole, and the screw rods penetrate through the corresponding round block and are connected with the screw hole in a screwed mode. The installation structure is simple in structure and convenient to operate. Installation and clamping of the sample extensometer is achieved after a manipulator smoothly finish irradiation, work staff do not need to contact irradiation samples in a short distance, irradiation dose of the work staff is effectively reduced, and safety of the work staff is protected.
Description
Technical field
The utility model relates to a kind of measurement aid of material mechanical performance, specifically relates to a kind of sample extensometer mounting structure.
Background technology
It is the important indicator of monitoring with heap irradiation that the fracture toughness of reactor pressure vessel material changes, and is also the technical basis of safety assessment and life-span management.Present recent tendency is to determine the transition temperature of pressure vessel material with fracture toughness test.Because fracture toughness test is very high to the requirement of test accuracy, some deviations just will affect accuracy and the reliability of test findings, therefore must install extensometer additional on the CT sample, to measure the displacement at sample break position.
Generally, when carrying out the fracture toughness test of irradiated sample not, be to use staff that extensometer is installed on sample.For the fracture toughness test after irradiation, due to the radioactivity of sample, testing equipment must be arranged in the hot cell with function of shielding, uses mechanical arm to carry out various operations.Due to the limitation of Robot actions, use mechanical arm to complete the installation of extensometer in the hot cell, must realize by a kind of device.
At present domestic research about fracture toughness test is only for irradiated sample not, not yet carries out the fracture toughness test after irradiation, also just do not have the device of the type can be for using for reference accordingly.State outer core developed country has carried out the correlation test technical research in this field, still due to the difference of extensometer structure and mechanical arm, must develop the stationary installation that is fit to use in our hot cell.
The utility model content
The purpose of this utility model is to overcome the shortcoming and defect of above-mentioned prior art, a kind of sample extensometer mounting structure is provided, this mounting structure is for the radioactivity place, with CT sample extensometer mounting structure after the irradiation of Robot actions, solved standard machinery manual manipulation hard problem, can be installed by the extensometer that mechanical arm is completed sample after irradiation smoothly, need not staff's close contact irradiated sample, effectively reduced personnel's radioactive dose.
The purpose of this utility model is achieved through the following technical solutions: sample extensometer mounting structure, comprise screw rod, base and the fixed head that is arranged on the base two ends, the top indent of described base forms groove, all be symmetrically arranged with screw on described fixed head, and screw is arranged on the top of base, fixed head is provided with nahlock away from a side of base, and the center line of nahlock and the center line of screw are on same straight line, the diameter of nahlock is greater than the large footpath of screw, and described screw rod screws with screw after passing respectively corresponding nahlock.
Further, be provided with the threaded hole identical with screw hole dimensions on described nahlock, and the center line of the center line of threaded hole and screw is on same straight line.Threaded hole on nahlock has extended the screw distance, prevents that screw rod from rocking in the turnover process.
Further, the described screw rod termination that is arranged on an end of fixed head outside all is decussate texture.Other version also can be adopted in the termination, to satisfy the type of the mechanical arm that uses.
Further, the center line of described groove overlaps with the center line of base.Guarantee that groove overlaps with the center line of base, when using, stability is higher, is subjected to force direction to be convenient to control.
Further, described screw rod, base and fixed head all adopt stainless steel material to make.Select material according to concrete duty.
In sum, the beneficial effects of the utility model are: the utility model is simple in structure, and is easy to operate; can be completed smoothly by mechanical arm that the extensometer of sample is installed after irradiation; need not staff's close contact irradiated sample, effectively reduced personnel's radioactive dose, protected personnel's safety.
Description of drawings
Fig. 1 is working state schematic representation of the present utility model;
Fig. 2 is structural representation of the present utility model.
Mark and corresponding parts title in accompanying drawing: 1-nahlock; 2-edge of a knife; 3-extensometer termination; 4-foil gauge; 5-screw rod; 6-decussate texture; 7-threaded hole; 8-groove; 9-sample; 10-base; 11-fixed head; 12-screw.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited only to this.
Embodiment:
As shown in Figure 1 and Figure 2, sample extensometer mounting structure, comprise screw rod 5, base 10 and the fixed head 11 that is arranged on base 10 two ends, the top indent of described base 10 forms groove 8, all be symmetrically arranged with screw 12 on described fixed head 11, and screw 12 is arranged on the top of base 10, fixed head 11 is provided with nahlock 1 away from a side of base 10, and the center line of the center line of nahlock 1 and screw 12 is on same straight line, the diameter of nahlock 1 is greater than the large footpath of screw 12, and described screw rod 5 passes respectively corresponding nahlock 1 afterwards and screw 12 screws.1 stabilization of nahlock, the quantity of screw rod 5 is two, screw rod 5 symmetries are passed corresponding screw 12 and nahlock 1, make when work more can stablize.
Be provided with the threaded hole 7 measure-alike with screw 12 on described nahlock 1, and the center line of the center line of threaded hole 7 and screw 12 is on same straight line.Threaded hole 7 has extended screw 12 distances, prevents that screw rod 5 from rocking in the turnover process, and stability is higher.
The termination that described screw rod 5 is arranged on an end of fixed head 11 outsides all is decussate texture 6.Screw rod 5 is for the installation to sample 9, and decussate texture 6 facilitates Robot actions.
The center line of described groove 8 overlaps with the center line of base 10.Groove 8 is in order to place sample 9, and groove 8 arranges the center of base 10, and when carrying out work, the center is stable, can not produce inclination.
Described screw rod 5, base 10 and fixed head 11 all adopt stainless steel material to make.Stainless steel material can increase the serviceable life of mounting structure.
Describe as an example of a kind of compact tension specimen formula fracture toughness specimen example, before carrying out fracture toughness test, first CT sample 9 is placed on 8 li of the grooves of this device pedestal 10, with 3 to CT sample 9 tops, manipulator clamping extensometer termination, this moment is with the decussate texture 6 of another mechanical arm rotary screw head, two foil gauges 4 of extensometer are closed up to less than gap width, then clamping extensometer termination 3 continues down to enter in breach, discharge screw rod 5, make it just to be stuck in 2 li, the edge of a knife of CT sample 9, complete being installed.
Take aforesaid way, just can realize preferably the utility model.
Claims (5)
1. sample extensometer mounting structure, it is characterized in that: comprise screw rod (5), base (10) and the fixed head (11) that is arranged on base (10) two ends, the top indent of described base (10) forms groove (8), all be symmetrically arranged with screw (12) on described fixed head (11), and screw (12) is arranged on the top of base (10), fixed head (11) is provided with nahlock (1) away from a side of base (10), and the center line of the center line of nahlock (1) and screw (12) is on same straight line, the diameter of nahlock (1) is greater than the large footpath of screw (12), described screw rod (5) passes respectively corresponding nahlock (1) afterwards and screw (12) screws.
2. sample extensometer mounting structure according to claim 1, it is characterized in that: be provided with the threaded hole (7) measure-alike with screw (12) on described nahlock (1), and the center line of the center line of threaded hole (7) and screw (12) is on same straight line.
3. sample extensometer mounting structure according to claim 1 is characterized in that: the termination that described screw rod (5) is arranged on the outside end of fixed head (11) all is decussate texture (6).
4. sample extensometer mounting structure according to claim 1, it is characterized in that: the center line of described groove (8) overlaps with the center line of base (10).
5. the described sample extensometer of any one mounting structure according to claim 1 to 4, it is characterized in that: described screw rod (5), base (10) and fixed head (11) all adopt stainless steel material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320001978 CN202974233U (en) | 2013-01-04 | 2013-01-04 | Installation structure of sample extensometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320001978 CN202974233U (en) | 2013-01-04 | 2013-01-04 | Installation structure of sample extensometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202974233U true CN202974233U (en) | 2013-06-05 |
Family
ID=48515294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320001978 Expired - Lifetime CN202974233U (en) | 2013-01-04 | 2013-01-04 | Installation structure of sample extensometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202974233U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104460689A (en) * | 2014-12-03 | 2015-03-25 | 江苏亨通光电股份有限公司 | Automatic regulating device for detection probe of electronic tension meter |
-
2013
- 2013-01-04 CN CN 201320001978 patent/CN202974233U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104460689A (en) * | 2014-12-03 | 2015-03-25 | 江苏亨通光电股份有限公司 | Automatic regulating device for detection probe of electronic tension meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |