CN204228506U - A kind of novel testing machine clamping centralising device - Google Patents
A kind of novel testing machine clamping centralising device Download PDFInfo
- Publication number
- CN204228506U CN204228506U CN201420577468.2U CN201420577468U CN204228506U CN 204228506 U CN204228506 U CN 204228506U CN 201420577468 U CN201420577468 U CN 201420577468U CN 204228506 U CN204228506 U CN 204228506U
- Authority
- CN
- China
- Prior art keywords
- centering
- bar
- testing machine
- cavity
- opening hollow
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model belongs to Mechanics Performance Testing equipment, be specifically related to a kind of novel testing machine clamping centralising device, comprise centering fixed frame, centering fixed support bar, rocker bar bearing and cavity base, described centering fixed support bar one end is threadedly attached in the threaded hole established in centering fixed frame; Opening hollow cavity is provided with in described centering fixed frame, cavity base is equipped with in this opening hollow cavity, and cavity base extends to the uncovered edge, bottom of opening hollow cavity, described cavity base has been nested with rocker bar bearing, and this rocker bar bearing can along central shaft to sliding up and down; Described rocker bar bearing outer end is provided with bar threaded hole, for clamping the bar of centering nested encryptions testing machine.The beneficial effects of the utility model are: apply upper and lower two clamping centralising devices accordingly, the bar of testing machine is threaded by bar threaded hole, then fix two centering fixed support bars up and down of centering, make upper and lower two clamping centralising devices carry out accurate centering.
Description
Technical field
The utility model belongs to Mechanics Performance Testing equipment, is specifically related to a kind of novel testing machine clamping centralising device.
Background technology
Under hydrogen gas environment, material mechanical performance testing apparatus mainly adopts the form of docking high pressure hydrogen environment case on existing testing machine main frame, sample is arranged on inside hyperbaric environment case, is then loaded the Mechanics Performance Testing carried out under hydrogen medium by testing machine main frame.For reducing hydrogen use amount, the design space of high pressure hydrogen environment case is less, is difficult to adopt hydraulically operated fixture clamping sample.If directly adopt the plain clamp that screw thread or boss connect, easily produce and misalign phenomenon, additional bending moment suffered by sample is large, has a strong impact on the validity of test findings.
Misalign and be mainly divided three classes: 1. Parallel misalignment, namely the center line of upper and lower fixture is parallel to each other but does not overlap, and there is radial displacement; 2. drift angle misaligns, i.e. there is drift angle between the center line of upper and lower fixture; 3. mixing misaligns, and namely there is Parallel misalignment and drift angle misaligns simultaneously.
Utility model content
The technical problems to be solved in the utility model is, overcomes the deficiencies in the prior art, proposes a kind of novel testing machine clamping centralising device.
For technical solution problem, solution of the present utility model is:
A kind of novel testing machine is provided to clamp centralising device, comprise centering fixed frame, it is characterized in that, also comprise centering fixed support bar, rocker bar bearing and cavity base, described centering fixed support bar one end is threadedly attached in the threaded hole established in centering fixed frame; Opening hollow cavity is provided with in described centering fixed frame, cavity base is equipped with in this opening hollow cavity, and cavity base extends to the uncovered edge, bottom of opening hollow cavity, described cavity base has been nested with rocker bar bearing, and this rocker bar bearing can along central shaft to sliding up and down; Described rocker bar bearing outer end is provided with bar threaded hole, for clamping the bar of centering nested encryptions testing machine.
In the utility model, the axial length of described rocker bar bearing, the axial length of cavity base are all less than the degree of depth of opening hollow cavity.
In the utility model, the xsect of described opening hollow cavity, rocker bar bearing is all rounded.
In the utility model, the xsect of described cavity base is circular.
Compared with prior art, the beneficial effects of the utility model are:
Utilize this utility model device, apply upper and lower two clamping centralising devices accordingly, the bar of testing machine is threaded by bar threaded hole, then two centering fixed support bars up and down of centering have been fixed, make upper and lower two clamping centralising devices carry out accurate centering, its bar installation process is fast and convenient, no matter is Parallel misalignment, drift angle misaligns or mix the situation of misaligning, the equal automatic centering that can realize sample, improves test figure accuracy.
Accompanying drawing explanation
Fig. 1 is general structure schematic diagram of the present utility model;
Fig. 2 is rocker bar bearing structural representation of the present utility model;
Reference numeral: centering fixed support bar 1, centering fixed frame 2, opening hollow cavity 21, rocker bar bearing 3, cavity base 4, bar threaded hole 31.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is set forth.
As shown in Fig. 1 ~ 2, a kind of novel testing machine is provided to clamp the specific embodiment of centralising device, comprise centering fixed frame 2, it is characterized in that, also comprise centering fixed support bar 1, rocker bar bearing 3 and cavity base 4, described centering fixed support bar 1 one end is threadedly attached in the threaded hole established in centering fixed frame 2; Opening hollow cavity 21 is provided with in described centering fixed frame 2, cavity base 4 is equipped with in this opening hollow cavity 21, and cavity base 4 extends to the uncovered edge, bottom of opening hollow cavity 21, described cavity base 4 has been nested with rocker bar bearing 3, and this rocker bar bearing 3 can along central shaft to sliding up and down; Described rocker bar bearing 3 outer end is provided with bar threaded hole 31, for clamping the bar of centering nested encryptions testing machine.
Wherein, the axial length of described rocker bar bearing 3, the axial length of cavity base 4 are all less than the degree of depth of opening hollow cavity 21.The xsect of described opening hollow cavity 21, rocker bar bearing 3 is all rounded.The xsect of described cavity base 4 is circular.
Upper and lower two clamping centralising devices are applied accordingly in the present embodiment, the bar of testing machine is threaded by bar threaded hole 31, then two centering fixed support bars 1 up and down of centering have been fixed, upper and lower two clamping centralising devices are made to carry out accurate centering, its bar installation process is fast and convenient, no matter be Parallel misalignment, drift angle misaligns or mix the situation of misaligning, all can realize the automatic centering of sample, improve test figure accuracy.In every case do not depart from the content of technical solutions of the utility model, any simple modification done above case study on implementation according to technical spirit of the present utility model, equivalent variations and modification, all still belong within the scope of technical solutions of the utility model.
Claims (4)
1. a novel testing machine clamping centralising device, comprise centering fixed frame, it is characterized in that, also comprise centering fixed support bar, rocker bar bearing and cavity base, described centering fixed support bar one end is threadedly attached in the threaded hole established in centering fixed frame; Opening hollow cavity is provided with in described centering fixed frame, cavity base is equipped with in this opening hollow cavity, and cavity base extends to the uncovered edge, bottom of opening hollow cavity, described cavity base has been nested with rocker bar bearing, and this rocker bar bearing can along central shaft to sliding up and down; Described rocker bar bearing outer end is provided with bar threaded hole, for clamping the bar of centering nested encryptions testing machine.
2., according to the testing machine clamping centralising device described in claim 1, it is characterized in that, the axial length of described rocker bar bearing, the axial length of cavity base are all less than the degree of depth of opening hollow cavity.
3., according to the testing machine clamping centralising device described in claim 1, it is characterized in that, the xsect of described opening hollow cavity, rocker bar bearing is all rounded.
4., according to the testing machine clamping centralising device described in claim 1, it is characterized in that, the xsect of described cavity base is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420577468.2U CN204228506U (en) | 2014-10-07 | 2014-10-07 | A kind of novel testing machine clamping centralising device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420577468.2U CN204228506U (en) | 2014-10-07 | 2014-10-07 | A kind of novel testing machine clamping centralising device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204228506U true CN204228506U (en) | 2015-03-25 |
Family
ID=52926586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420577468.2U Expired - Fee Related CN204228506U (en) | 2014-10-07 | 2014-10-07 | A kind of novel testing machine clamping centralising device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204228506U (en) |
-
2014
- 2014-10-07 CN CN201420577468.2U patent/CN204228506U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20171007 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |