CN116067763A - Device for replacing sample piece of lifting-free cross beam in high-cycle fatigue test - Google Patents
Device for replacing sample piece of lifting-free cross beam in high-cycle fatigue test Download PDFInfo
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- CN116067763A CN116067763A CN202310349631.3A CN202310349631A CN116067763A CN 116067763 A CN116067763 A CN 116067763A CN 202310349631 A CN202310349631 A CN 202310349631A CN 116067763 A CN116067763 A CN 116067763A
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- 238000009661 fatigue test Methods 0.000 title claims abstract description 31
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009674 high cycle fatigue testing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 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
- G01N3/02—Details
- G01N3/04—Chucks
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- 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
- G01N3/02—Details
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- General Physics & Mathematics (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a device for replacing a sample piece of a lifting-free cross beam in a high-cycle fatigue test, which comprises a base, a cover body, a stud, a nut, a wedge-shaped block and a base jacking block, wherein the stud is fixed on one side of the cover body and used for penetrating through the base and being matched with the nut for fixing; the wedge-shaped blocks are arranged in pairs in the cover body and are used for clamping the sample piece; wherein the wedge block is inclined inwards from one side to the other side of the base; the base jacking block is arranged between the base and the cover body and is used for jacking the wedge-shaped block, and the cover body is provided with a side opening and is used for inserting the sample into the cover body from the side opening. The invention has the beneficial effects that: through the design of clamp side opening, just can follow clamp side opening and change the sample after unscrewing locking double-screw bolt, the manual process of unscrewing, removal of having omitted shortens the time of changing the sample after the experiment finishes, uses manpower sparingly simultaneously.
Description
Technical Field
The invention belongs to the field of material fatigue tests, and particularly relates to a device for replacing a sample by a lifting-free cross beam in a high-cycle fatigue test.
Background
The POWER SWING MOT high-cycle fatigue testing machine of Sincon Tec company is a resonance type testing system and has the advantages of low energy consumption, high frequency, simple equipment operation and the like. However, the cross beam and the clamp are required to be manually unscrewed when the sample is replaced every time, so that the height of the upper clamp and the lower clamp is larger than the length of the sample, the sample can be taken out, and the cross beam and the clamp are required to be manually locked again after the sample is replaced, thereby wasting time and labor. There is therefore a need for a high cycle fatigue test apparatus that optimizes the process of sample replacement.
Disclosure of Invention
In view of the above, the invention aims to provide a device for replacing a sample by a lifting-free beam in a high-cycle fatigue test, so that the time and labor are saved in the process of replacing the sample in the high-cycle fatigue test.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
a device for replacing a sample piece of a lifting-free cross beam in a high-cycle fatigue test comprises a base, a cover body, a stud, a nut, a wedge-shaped block and a base jacking block,
the stud is fixed on one side of the cover body, and is used for penetrating through the base and being matched with the nut for fixing;
the wedge-shaped blocks are arranged in pairs in the cover body and are used for clamping the sample piece; wherein the wedge block is inclined inwards from one side to the other side of the base;
the base propping block is arranged between the base and the cover body and is used for propping the wedge-shaped block,
the cover body is provided with a side opening, and the sample piece is inserted into the cover body from the side opening; wherein a gap between the pair of wedge blocks for clamping the sample corresponds to a position of the side opening.
Further, the cover body comprises an upper cover and a lower cover,
the upper cover and the lower cover are arranged in pairs, wherein the upper cover is arranged above the lower cover,
the upper cover is used for clamping the top of the sample piece;
the lower cover is used for clamping the bottom of the sample piece.
Further, the base comprises an upper base and a lower base,
the upper base is arranged at the upper part of the upper cover through the stud;
the lower base is arranged at the lower part of the lower cover through the stud.
Further, the base propping block comprises an upper base propping block and a lower base propping block.
Further, the upper portion of the upper base is provided with a threaded column for being fixed with the cross beam through threads.
Further, a plurality of first through holes are formed in the bottom of the lower base.
Further, the device further comprises semicircular gaskets, wherein the semicircular gaskets are arranged in pairs and are provided with second through holes corresponding to the first through holes in the bottom of the lower base, and the semicircular gaskets are used for being fixed with the workbench through the first through holes and the second through holes through fixing bolts.
Further, the device also comprises a guide post which is fixed on one side of the base, which faces the cover body, and is used for limiting the cover body.
Further, the guide post is fixed with the base through interference fit;
the guide post is in clearance fit with the cover body for limiting.
Further, four studs are respectively fixed on the upper cover and the lower cover;
the upper base and the lower base are respectively fixed with two guide posts.
Compared with the prior art, the device for replacing the sample piece of the lifting-free cross beam for the high-cycle fatigue test has the following beneficial effects:
according to the lifting-free cross beam sample replacing device for the high-cycle fatigue test, through the design of the opening at the clamp side, the sample can be replaced from the opening at the clamp side after the locking stud is unscrewed, the manual unscrewing and moving processes are omitted, the time for replacing the sample after the test is finished is shortened, and meanwhile, the labor is saved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of an apparatus for replacing a sample of a lift-free beam for a high cycle fatigue test according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an apparatus for replacing a sample for a lift-free beam for a high cycle fatigue test according to an embodiment of the present invention;
fig. 3 is an exploded schematic view of a device for replacing a sample piece of an lifting-free beam in a high-cycle fatigue test according to an embodiment of the invention.
Reference numerals illustrate:
1-an upper base; 11-a base jacking block; 2-a lower base; 21-a lower base jacking block; 3-an upper cover; 4-a lower cover; 5-a guide post; 6-a stud; 7-a nut; 8-wedge blocks; 9-semicircle washers.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 to 3, fig. 1 is a schematic diagram illustrating an apparatus for replacing a sample member of an lifting-free beam for a high-cycle fatigue test according to an embodiment of the present invention; FIG. 2 is a schematic cross-sectional view of an apparatus for replacing a sample for a lift-free beam for a high cycle fatigue test according to an embodiment of the present invention; fig. 3 is an exploded schematic view of a device for replacing a sample piece of an lifting-free beam in a high-cycle fatigue test according to an embodiment of the invention.
The invention relates to a device for replacing a sample piece of a lifting-free cross beam in a high-cycle fatigue test, which comprises a base, a cover body, a stud 6, a nut 7, a wedge block 8 and a base jacking block,
the stud 6 is fixed on one side of the cover body, and is used for penetrating through the base and being matched with the nut 7 for fixing;
the wedge blocks 8 are arranged in pairs in the cover body and are used for clamping the sample; wherein the wedge block 8 is inclined inwards from one side to the other side of the base;
the base propping block is arranged between the base and the cover body and is used for propping the wedge-shaped block 8,
the cover body is provided with a side opening, and the sample piece is inserted into the cover body from the side opening; wherein a gap between the pair of wedge blocks for clamping the sample corresponds to a position of the side opening.
The device for replacing the sample piece of the lifting-free cross beam for the high-cycle fatigue test can replace the sample piece from the opening of the clamp side after unscrewing the locking stud 6 through the design of the opening of the clamp side, so that the manual unscrewing and moving processes are omitted, the time for replacing the sample piece after the test is finished is shortened, and meanwhile, the labor is saved. In addition, a gasket is arranged between the nut and the base.
The cover body comprises an upper cover 3 and a lower cover 4,
the upper cover 3 and the lower cover 4 are arranged in pairs, wherein the upper cover 3 is arranged above the lower cover 4,
the upper cover 3 is used for clamping the top of the sample piece;
the lower cover 4 is used to clamp the bottom of the sample.
The base comprises an upper base 1 and a lower base 2,
the upper base 1 is mounted on the upper part of the upper cover 3 through the stud 6;
the lower base 2 is mounted to the lower portion of the lower cover 4 by the stud 6.
The base jacking block comprises an upper base jacking block 11 and a lower base jacking block 21.
The upper base tightening block 11 and the lower base tightening block may be respectively fixed to the upper base 1 and the lower base 2 by threaded connection. However, the connection mode of the base tightening block and the base is not limited in any way.
The upper base 1 is provided with a threaded column at the upper part for fixing with the cross beam through threads.
The bottom of the lower base 2 is provided with a plurality of first through holes.
The invention relates to a device for replacing a sample piece of a lifting-free cross beam in a high-cycle fatigue test, which further comprises semicircular gaskets 9, wherein the semicircular gaskets 9 are arranged in pairs and are provided with second through holes corresponding to first through holes at the bottom of a lower base 2, and the device is used for fixing a workbench through the first through holes and the second through holes by fixing bolts.
The invention relates to a device for replacing a sample piece of a lifting-free cross beam in a high-cycle fatigue test, which also comprises a guide post 5, wherein the guide post 5 is fixed on one side of a base, which faces to a cover body, and is used for limiting the cover body.
The guide post 5 is fixed with the base through interference fit;
the guide post 5 is in clearance fit with the cover body for limiting.
It should be noted that, guide post 5 pass through interference fit with the base is fixed, be provided with on the lid with the corresponding through-hole of guide post 5, wherein the diameter of through-hole is greater than the diameter of guide post, guide post 5 passes through clearance fit with the through-hole of lid and realizes spacingly.
In one embodiment of the present invention, the guiding post 5 includes a first cylinder and a second cylinder, the first cylinder and the second cylinder are coaxially and fixedly connected, the length of the first cylinder is the same as the thickness of the base, and the diameter of the first cylinder is slightly larger than the corresponding through hole arranged on the base, so as to be in interference fit with the base; the diameter of the second cylinder is slightly smaller than that of the through hole arranged on the cover body, and the second cylinder is used for being inserted into the through hole arranged on the cover body and realizing clearance fit with the cover body so as to limit the cover body and the base; wherein the diameter of the first cylinder is smaller than the diameter of the second cylinder. The tolerance of the interference fit between the diameter of the first cylinder and the diameter of the through hole provided on the base and the tolerance of the clearance fit between the diameter of the second cylinder and the diameter of the through hole provided on the cover may be set with reference to the size of the tolerance table.
Four studs 6 are respectively fixed on the upper cover 3 and the lower cover 4;
two guide posts 5 are respectively fixed on the upper base 1 and the lower base 2.
In one embodiment of the invention, the upper base 1 and the cross beam are locked and fixed through threaded connection, 12 fixing bolts penetrate through 2 semicircular gaskets 9 to fix the lower base 2 and the workbench, the wedge block 8 is connected with the upper base propping block 11 and the lower base propping block 21 through a magnetic attraction mode, a test sample is inserted between the two wedge blocks through a side opening, the upper base 1 and the upper cover 3 as well as the lower base 2 and the lower cover 4 are respectively connected through 2 guide posts 5, the upper ends of 8 studs 6 are connected with the upper cover 3 and the lower cover 4 through threads, the lower ends penetrate through the upper base 1 and the lower base 2, and the upper base 1 and the upper cover 3 as well as the lower base 2 and the lower cover 4 are locked through locking nuts 7, and the test sample is clamped by the wedge block 8. When the test is finished and the sample is replaced, the nut 7 is unscrewed, the upper base 1 is separated from the upper cover 3, the lower base 2 is separated from the lower cover 4, the wedge block 8 is separated from the test sample, and the sample can be taken down from the side opening positions of the upper cover 3 and the lower cover 4. After the sample is replaced, the nut 7 is locked, so that the wedge-shaped block 8 is clamped with the test sample, the upper base 1 is locked with the upper cover 3, and the lower base 2 is locked with the lower cover 4 for retesting.
Those of ordinary skill in the art will appreciate that the elements and method steps of each example described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the elements and steps of each example have been described generally in terms of functionality in the foregoing description to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the several embodiments provided in this application, it should be understood that the disclosed methods and systems may be implemented in other ways. For example, the above-described division of units is merely a logical function division, and there may be another division manner when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted or not performed. The units may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiment of the present invention.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The utility model provides a device of high cycle fatigue test lift-free crossbeam change sample piece which characterized in that: comprises a base, a cover body, a stud (6), a nut (7), a wedge block (8) and a base propping block,
the stud (6) is fixed on one side of the cover body, and is used for penetrating through the base and being matched with the nut (7) for fixing;
the wedge-shaped blocks (8) are arranged in pairs in the cover body and are used for clamping the sample; wherein the wedge block (8) is inclined inwards from one side to the other side of the base;
the base propping block is arranged between the base and the cover body and is used for propping the wedge-shaped block (8),
the cover body is provided with a side opening, and the sample piece is inserted into the cover body from the side opening; wherein a gap between the pair of wedge blocks for clamping the sample corresponds to a position of the side opening.
2. The device for replacing a sample of a lift-free beam for a high cycle fatigue test of claim 1, wherein: the cover body comprises an upper cover (3) and a lower cover (4),
the upper cover (3) and the lower cover (4) are arranged in pairs, wherein the upper cover (3) is arranged above the lower cover (4),
the upper cover (3) is used for clamping the top of the sample piece;
the lower cover (4) is used for clamping the bottom of the sample piece.
3. The device for replacing a sample of a lift-free beam for a high cycle fatigue test of claim 2, wherein: the base comprises an upper base (1) and a lower base (2),
the upper base (1) is arranged at the upper part of the upper cover (3) through the stud (6);
the lower base (2) is mounted on the lower part of the lower cover (4) through the stud (6).
4. The device for replacing a sample of a lift-free beam for a high cycle fatigue test of claim 1, wherein: the base propping block comprises an upper base propping block (11) and a lower base propping block (21).
5. The device for replacing a sample of a lift-free beam for a high cycle fatigue test of claim 1, wherein: the upper portion of the upper base (1) is provided with a threaded column which is used for being fixed with the cross beam through threads.
6. A high cycle fatigue test lift-free beam sample replacement apparatus as recited in claim 3, wherein: the bottom of the lower base (2) is provided with a plurality of first through holes.
7. The device for replacing a sample of a lift-free beam for a high cycle fatigue test of claim 6, wherein: the automatic fixing device is characterized by further comprising semicircular gaskets (9), wherein the semicircular gaskets (9) are arranged in pairs, and are provided with second through holes corresponding to the first through holes in the bottom of the lower base (2) and used for fixing the workbench through the first through holes and the second through holes through fixing bolts.
8. The device for replacing a sample of a lift-free beam for a high cycle fatigue test of claim 1, wherein: the device also comprises a guide column (5) which is fixed on one side of the base, which faces the cover body, and is used for limiting the cover body.
9. The device for replacing a sample of a lift-free beam for a high cycle fatigue test of claim 8, wherein: the guide post (5) is fixed with the base through interference fit;
the guide post (5) is in clearance fit with the cover body for limiting.
10. The device for replacing a sample of a lift-free beam for a high cycle fatigue test according to claim 3 or 8, wherein: four studs (6) are respectively fixed on the upper cover (3) and the lower cover (4);
two guide posts (5) are respectively fixed on the upper base (1) and the lower base (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310349631.3A CN116067763A (en) | 2023-04-04 | 2023-04-04 | Device for replacing sample piece of lifting-free cross beam in high-cycle fatigue test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310349631.3A CN116067763A (en) | 2023-04-04 | 2023-04-04 | Device for replacing sample piece of lifting-free cross beam in high-cycle fatigue test |
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| Publication Number | Publication Date |
|---|---|
| CN116067763A true CN116067763A (en) | 2023-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310349631.3A Pending CN116067763A (en) | 2023-04-04 | 2023-04-04 | Device for replacing sample piece of lifting-free cross beam in high-cycle fatigue test |
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| CN (1) | CN116067763A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198203A (en) * | 2016-08-01 | 2016-12-07 | 西北工业大学 | A kind of for thin-walled flat test piece high frequency fatigue test hydraulic clamping device |
| CN205958356U (en) * | 2016-08-04 | 2017-02-15 | 上海工程技术大学 | Sheet metal sample draws presses and fatigue test anchor clamps |
| CN109738179A (en) * | 2019-03-18 | 2019-05-10 | 南昌航空大学 | A kind of fatigue test clamper of HF fatigue testing machine |
| CN113155635A (en) * | 2021-05-08 | 2021-07-23 | 苏州迈达检测科技有限公司 | Clamp for axial fatigue test of metal pipe |
| CN114062119A (en) * | 2021-11-12 | 2022-02-18 | 成都先进金属材料产业技术研究院股份有限公司 | High-frequency fatigue test sheet sample buckling prevention device and method |
-
2023
- 2023-04-04 CN CN202310349631.3A patent/CN116067763A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198203A (en) * | 2016-08-01 | 2016-12-07 | 西北工业大学 | A kind of for thin-walled flat test piece high frequency fatigue test hydraulic clamping device |
| CN205958356U (en) * | 2016-08-04 | 2017-02-15 | 上海工程技术大学 | Sheet metal sample draws presses and fatigue test anchor clamps |
| CN109738179A (en) * | 2019-03-18 | 2019-05-10 | 南昌航空大学 | A kind of fatigue test clamper of HF fatigue testing machine |
| CN113155635A (en) * | 2021-05-08 | 2021-07-23 | 苏州迈达检测科技有限公司 | Clamp for axial fatigue test of metal pipe |
| CN114062119A (en) * | 2021-11-12 | 2022-02-18 | 成都先进金属材料产业技术研究院股份有限公司 | High-frequency fatigue test sheet sample buckling prevention device and method |
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