CN204101375U - Axial fatigue performance test fixture - Google Patents
Axial fatigue performance test fixture Download PDFInfo
- Publication number
- CN204101375U CN204101375U CN201420569830.1U CN201420569830U CN204101375U CN 204101375 U CN204101375 U CN 204101375U CN 201420569830 U CN201420569830 U CN 201420569830U CN 204101375 U CN204101375 U CN 204101375U
- Authority
- CN
- China
- Prior art keywords
- performance test
- fatigue performance
- test fixture
- sleeve
- tested sample
- 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
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a kind of axial fatigue performance test fixture, comprising: push rod, it is threaded in the end of tested sample; Sleeve, it is set on described push rod, and the threaded upper ends of described sleeve is connected in described tested sample, and its lower end has round platform portion; Nut, its upper end is set in described round platform portion, and its lower end is connected with web member.Axial fatigue performance test fixture of the present utility model, effectively can clamp the tested sample of carrying out axial fatigue performance test at complex conditions such as normal temperature or high temperature, low frequency or high frequencies, prevent tested sample from skew twisting occurring, ensure that carrying out smoothly of test.
Description
Technical field
The utility model has about a kind of test fixture, especially has and carries out normal temperature or the axial loading fatigue test fixture of high temperature, low frequency or high frequency about one to material, belong to fatigue test of materials grip device field.
Background technology
Along with actual military service operating mode proposes more and more higher requirement to the anti-fatigue performance of component of machine, carry out structured material torture test of (as high temperature, high frequency) under complicated extreme operating condition, specify the corresponding fatigue behaviour of material, seem particularly important.
Existing axial loading fatigue test fixture often adopts chuck (as three-jaw chuck or templin chuck) to clamp or be threaded two kinds of patterns.The former is only applicable to low frequency, and the phenomenon skidded or be caught broken easily occurs in high frequency; The latter is applicable to high frequency, but existing fixture can be subject to processing the impact such as precision, test wearing and tearing, easily cause producing gap between the internal thread of the external thread of sample holder end and fixture threaded hole, make sample generation axial float, strongly limit the frequency range that test loads, and usually ignore the centering of tested sample is processed.In addition, under the high temperature conditions, also there are two prominent questions in the design of existing fixture: the gripping section of (1) fixture and tested sample is positioned at outside heating arrangement, and tested sample cannot entirety be heated; (2) fixture is cooled, and heat can be passed to testing machine worktable by fixture, causes certain infringement to testing machine.
Therefore, be necessary to provide a kind of novel axial loading fatigue test fixture, overcome above-mentioned defect, meet the complex conditions such as normal temperature or high temperature, low frequency or high frequency to the particular/special requirement of fixture.
Utility model content
The purpose of this utility model is to provide a kind of axial fatigue performance test fixture, it effectively can clamp the tested sample of carrying out normal temperature or high temperature, low frequency or high frequency axial fatigue performance test, prevent tested sample from skew twisting occurring, ensure that carrying out smoothly of test.
Above-mentioned purpose of the present utility model can adopt following technical proposal to realize:
The utility model provides a kind of axial fatigue performance test fixture, and described axial fatigue performance test fixture comprises:
Push rod, it is threaded in the end of tested sample;
Sleeve, it is set on described push rod, and the threaded upper ends of described sleeve is connected in described tested sample, and its lower end has round platform portion;
Nut, its upper end is set in described round platform portion, and its lower end is connected with web member.
In a preferred embodiment, the outside surface of described sleeve is provided with ring groove, is provided with sealing ring in described ring groove.
In a preferred embodiment, the upper end of described web member is provided with reverse frustoconic groove, and the lower end of described push rod has reverse frustoconic structure, described reverse frustoconic structure and described reverse frustoconic fit depressions.
In a preferred embodiment, the axes coincide of the axis in described round platform portion, the axis of described reverse frustoconic groove and described reverse frustoconic structure.
In a preferred embodiment, described web member offers multiple cooling water hole.
Feature and the advantage of axial fatigue performance test fixture of the present utility model are: this axial fatigue performance test fixture effectively can clamp tested sample, the end of tested sample is connected to by sleeve and push rod matching thread, eliminate the impact of thread pitch, ensure that tested sample can carry out experiment on fatigue properties under the vibration of low frequency or high frequency; In addition, by the round platform portion of sleeve lower end and coordinating of nut, and the coordinating of the reverse frustoconic groove at web member top and the reverse frustoconic structure of push rod lower end, effectively ensure that the right alignment of tested sample top and bottom clamping; Further, the sealing ring by being arranged on sleeve outer surface, the heat of high temperature furnace can be effectively stoped outwards to transmit from the gap between high temperature furnace inwall and sleeve outer wall.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the cut-open view of axial fatigue performance test fixture of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the utility model provides a kind of axial fatigue performance test fixture, and it is folded in the both ends of tested sample 5, and it comprises: push rod 1, sleeve 2 and nut 3.Wherein: push rod 1 is threaded in the end of tested sample 5; Sleeve 2 is set on described push rod 1, and the threaded upper ends of described sleeve 2 is connected in described tested sample 5, and its lower end has round platform portion 21; The upper end of nut 3 is set in described round platform portion 21, and its lower end is connected with web member 4.
Specifically, push rod 1 is substantially in cylindrical, and its upper end offers threaded hole 11, and the end thread of tested sample 5 is connected in this threaded hole 11.
Sleeve 2 is substantially in bar shape, and its lower end is formed with round platform portion 21, and the cross section of sleeve 2 is substantially in " n " shape, and its upper end offers threaded hole 22, and its lower end offers the through hole 23 be connected with threaded hole 22, and the diameter of through hole 23 is greater than the diameter of threaded hole 22.When sleeve 2 is set in push rod 1 outside, the threaded hole 22 of sleeve 2 upper end is threaded in tested sample 5, and the through hole 23 of its lower end is set on push rod 1.In the utility model, the end face of the through hole 23 end face distance push rod 1 of sleeve 2 has certain distance, also be, certain gap 12 is formed between sleeve 2 and push rod 1, the thread segment that such tested sample 5 screws in the threaded hole 22 of sleeve 2 is subject to downward power, and its thread segment screwed in push rod 1 is subject to power upwards, eliminates the impact of thread pitch, ensure that tested sample 5 can carry out experiment on fatigue properties under the vibration of high frequency.
The upper end of nut 3 is set in the round platform portion 21 of sleeve 2 lower end, and its lower end has been threaded web member 4.In the utility model, the upper end 41 of web member 4 is provided with reverse frustoconic groove 411, and the lower end of push rod 1 has reverse frustoconic structure 13, and this reverse frustoconic structure 13 matches with this reverse frustoconic groove 411.When nut 3 be set in sleeve 2 round platform portion 21 and after screwing with web member 4, the inner conical surface of nut 3 upper end is pressed on the male cone (strobilus masculinus) in round platform portion, sleeve 2 lower end 21 just, pass through cone match, ensure that the right alignment of tested sample 5 top and bottom clamping, simultaneously leave certain space between the bottom surface of sleeve 2 and the end face of web member 4, ensure that push rod 1 is connected with web member 4 reliable.In addition, after nut 3 screws web member 4, the male cone (strobilus masculinus) of the reverse frustoconic structure 13 of push rod 1 lower end is pressed on the inner conical surface of the reverse frustoconic groove 411 on web member 4 top just, by cone match, ensure again that the right alignment of tested sample 5 top and bottom clamping.Also namely, the axes coincide of the axis in round platform portion 21, the axis of reverse frustoconic groove 411 and reverse frustoconic structure 13.
Further, the outside surface of sleeve 2 is provided with ring groove 24, is provided with sealing ring 25 in described ring groove 24.Sealing ring 25 is made up of asbestos material, when axial fatigue performance test fixture stretches into after in high temperature furnace, it can seal the gap between this axial fatigue performance test fixture and high temperature furnace, stops the heat of high temperature furnace outwards to transmit from the gap between high temperature furnace inwall and sleeve 2 outer wall.
In addition, web member 4 also offers multiple cooling water hole 412.Pass into chilled water in those cooling water holes 412, it can take away the waste heat on web member 4, prevent too much heat to the transmission of testing machine worktable damage test machine.
Axial fatigue performance test fixture of the present utility model, effectively can clamp tested sample 5, the end of tested sample 5 is connected to by sleeve 2 and push rod 1 matching thread, eliminate the impact of thread pitch, ensure that tested sample 5 can carry out experiment on fatigue properties under the vibration of low frequency or high frequency; In addition, by the round platform portion 21 of sleeve 2 lower end and coordinating of nut 3, and the coordinating of the reverse frustoconic groove 411 at web member 4 top and the reverse frustoconic structure 13 of push rod 1 lower end, effectively ensure that the right alignment of tested sample 5 top and bottom clamping; Further, the sealing ring 25 by being arranged on sleeve 2 outside surface, the heat of high temperature furnace can be effectively stoped outwards to transmit from the gap between high temperature furnace inwall and sleeve 2 outer wall.
The foregoing is only several embodiment of the present utility model, those skilled in the art can carry out various change or modification to the utility model embodiment according to content disclosed in application documents and not depart from spirit and scope of the present utility model.
Claims (5)
1. an axial fatigue performance test fixture, is characterized in that, described axial fatigue performance test fixture comprises:
Push rod, it is threaded in the end of tested sample;
Sleeve, it is set on described push rod, and the threaded upper ends of described sleeve is connected in described tested sample, and its lower end has round platform portion;
Nut, its upper end is set in described round platform portion, and its lower end is connected with web member.
2. axial fatigue performance test fixture as claimed in claim 1, it is characterized in that, the outside surface of described sleeve is provided with ring groove, is provided with sealing ring in described ring groove.
3. axial fatigue performance test fixture as claimed in claim 1, it is characterized in that, the upper end of described web member is provided with reverse frustoconic groove, and the lower end of described push rod has reverse frustoconic structure, described reverse frustoconic structure and described reverse frustoconic fit depressions.
4. axial fatigue performance test fixture as claimed in claim 3, is characterized in that, the axes coincide of the axis in described round platform portion, the axis of described reverse frustoconic groove and described reverse frustoconic structure.
5. axial fatigue performance test fixture as claimed in claim 1, is characterized in that, described web member offers multiple cooling water hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420569830.1U CN204101375U (en) | 2014-09-29 | 2014-09-29 | Axial fatigue performance test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420569830.1U CN204101375U (en) | 2014-09-29 | 2014-09-29 | Axial fatigue performance test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204101375U true CN204101375U (en) | 2015-01-14 |
Family
ID=52269794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420569830.1U Expired - Fee Related CN204101375U (en) | 2014-09-29 | 2014-09-29 | Axial fatigue performance test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204101375U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792612A (en) * | 2015-05-08 | 2015-07-22 | 北京航空航天大学 | High-temperature push-pull fatigue test clamp for hollow round rod test piece |
| CN106885729A (en) * | 2017-04-05 | 2017-06-23 | 北京航空航天大学 | The high temperature push-pull fatigue test cramp and method of a kind of flat test piece |
| CN107322502A (en) * | 2016-04-28 | 2017-11-07 | 联合汽车电子有限公司 | Fuel pump vibration tong and its application method |
| CN108548716A (en) * | 2018-04-02 | 2018-09-18 | 北京航空航天大学 | A kind of pole test specimen high temperature push-pull fatigue test cramp and test method |
| CN110044743A (en) * | 2019-04-12 | 2019-07-23 | 西北工业大学 | Nickel-based monocrystal small sample fatigue test system and method |
| CN111595695A (en) * | 2020-06-04 | 2020-08-28 | 上海交通大学 | Clearance elimination device and method suitable for low-temperature tension-compression fatigue test |
| CN115420591A (en) * | 2022-10-14 | 2022-12-02 | 重庆大学 | High-temperature tension-compression fatigue test clamp for bar-shaped test piece and using method |
| CN115452560A (en) * | 2022-10-14 | 2022-12-09 | 重庆大学 | High-temperature torsion fatigue test clamp for bar-shaped test piece and using method |
-
2014
- 2014-09-29 CN CN201420569830.1U patent/CN204101375U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792612A (en) * | 2015-05-08 | 2015-07-22 | 北京航空航天大学 | High-temperature push-pull fatigue test clamp for hollow round rod test piece |
| CN107322502A (en) * | 2016-04-28 | 2017-11-07 | 联合汽车电子有限公司 | Fuel pump vibration tong and its application method |
| CN106885729A (en) * | 2017-04-05 | 2017-06-23 | 北京航空航天大学 | The high temperature push-pull fatigue test cramp and method of a kind of flat test piece |
| CN108548716A (en) * | 2018-04-02 | 2018-09-18 | 北京航空航天大学 | A kind of pole test specimen high temperature push-pull fatigue test cramp and test method |
| CN108548716B (en) * | 2018-04-02 | 2019-07-30 | 北京航空航天大学 | A kind of pole test specimen high temperature push-pull fatigue test cramp and test method |
| CN110044743A (en) * | 2019-04-12 | 2019-07-23 | 西北工业大学 | Nickel-based monocrystal small sample fatigue test system and method |
| CN111595695A (en) * | 2020-06-04 | 2020-08-28 | 上海交通大学 | Clearance elimination device and method suitable for low-temperature tension-compression fatigue test |
| CN115420591A (en) * | 2022-10-14 | 2022-12-02 | 重庆大学 | High-temperature tension-compression fatigue test clamp for bar-shaped test piece and using method |
| CN115452560A (en) * | 2022-10-14 | 2022-12-09 | 重庆大学 | High-temperature torsion fatigue test clamp for bar-shaped test piece and using method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204101375U (en) | Axial fatigue performance test fixture | |
| RU2010150679A (en) | TOOL HOLDER AND TOOL AMENDMENT FOR HIM | |
| CN104368955B (en) | Multi-function double-way fluid bearing stripping attachment | |
| CN204758393U (en) | A centre gripping fixing device for high temperature alloy silk material high temperature tension test | |
| CN207556980U (en) | A kind of separate type Hopkinson pull rod test fixture | |
| CN106066229A (en) | Simple type steel pipe air seal test outlet closing device | |
| CN205155422U (en) | Spray tube quick detach connects | |
| CN210893928U (en) | Clamp for dumbbell-shaped test sample | |
| CN212509888U (en) | Taper sleeve locking type pipe fitting | |
| CN205157310U (en) | A high temperature tension test anchor clamps for superplasticity metal | |
| AU2015101489A4 (en) | A Screw Tap Quick Change Structure of Internal Thread Tapping Device | |
| CN203649581U (en) | Floating tapping device | |
| CN203599933U (en) | Tool clamp | |
| CN203541760U (en) | Expansion sleeve type gear grinding clamp | |
| CN208651939U (en) | A kind of high-precision stainless steel for aviation steel pipe | |
| CN207205440U (en) | A kind of device for removing copper bush of fuel injector aperture copper scale | |
| CN207999579U (en) | A kind of glass steel pipeline Rapid leakage repairing device | |
| CN202506197U (en) | Filter element mounting structure for novel ultrafilter | |
| CN202411581U (en) | Screw tap extending device | |
| CN105643505A (en) | Mounting clamping device | |
| CN104646728A (en) | Tapered step drill | |
| CN106679851B (en) | A kind of device to steering engine inner barrel bushing transmitting axial compressive force | |
| CN205342593U (en) | Intact round bar turning anchor clamps of non - | |
| CN202667839U (en) | Tool for preventing large caliber thin-wall casing threaded surface from chattermarks | |
| CN102797924A (en) | Quick dual-connector device |
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: 20150114 Termination date: 20160929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |