CN202141631U - Weld fatigue testing device - Google Patents
Weld fatigue testing device Download PDFInfo
- Publication number
- CN202141631U CN202141631U CN 201120233823 CN201120233823U CN202141631U CN 202141631 U CN202141631 U CN 202141631U CN 201120233823 CN201120233823 CN 201120233823 CN 201120233823 U CN201120233823 U CN 201120233823U CN 202141631 U CN202141631 U CN 202141631U
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- shaft
- test
- weld
- bearing
- piece
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- Expired - Fee Related
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Abstract
The utility model discloses a weld fatigue testing device, comprising a drive part used for driving a test work-piece to rotate, a loading part used for loading the test work-piece and a strain foil for stress test arranged at the weld of the test work-piece. The weld fatigue tester is characterized in that the drive part comprises a motor arranged on a test pedestal; a rotating shaft of the motor is connected with a transmission shaft, and a flywheel disk used for connecting the test work-piece is arranged at the other end of the rotating shaft; a front support plate and a rear support plate which are used for supporting the transmission shaft are also arranged on the test pedestal; and the loading part comprises a hanging block seat arranged on the test pedestal, a bearing shaft hinged with the hanging block seat and a hanging block for loading capable of sliding on the bearing shaft. The test work-piece is movably sleeved with a bearing sleeve; the bearing shaft is sleeved with a shaft sleeve; and the bearing sleeve is connected with the shaft sleeve by a connecting rod. The weld fatigue testing device solves the problem of unreliable and inefficient detection on fatigue strength and stress of a weld of the traditional weld fatigue testing device.
Description
Technical field
The utility model belongs to the mechanical test equipment technical field, especially relates to a kind of weld fatigue test unit.
Background technology
At present, be used to detect weld seam, mainly contain following several method and equipment:
(1) gamma-rays detects.This equipment uses operation easily, but radiation breakdown power is more intense, needs 100 meters scopes to enforce martial law, and is forbidden into people, and the testing staff will have the protection of radiation proof equipment.
(2) X ray detects.With γ source ratio, radiation breakdown power is point a little, uses also more convenient.
(3) ultrasound examination.Radiationless, compare safety, without martial law.But, use cumbersomely, equipment is too heavy, is inconvenient to carry.And the effect that detects is not as the above two.
The weak point of prior art is, can only butt welded seam a bit carry out detection analysis, can only detect weld seam and crackle whether occur.The suffered stress state of fatigue strength, weld seam to circumferential weld can't reliably effectively detect, and often can only wherein one be analyzed, and causes the test period long, and test objective is single.And, be used for the equipment of weld seam detection at present, all exist equipment huge, expensive, operation is difficult for.
The utility model content
The purpose of the utility model provides a kind of weld fatigue test unit, the problem that the suffered stress state of fatigue strength, weld seam of the existing weld fatigue test unit butt welded seam of solution can't reliably effectively detect.
The utility model solves the technical scheme that its technical matters adopted:
A kind of weld fatigue test unit, it comprises the drive part that drives the test piece rotation, the loading section to test piece loads is provided with stress test in the commissure of test piece and uses foil gauge; It is characterized in that: described drive part is included in the motor that is provided with on the testing bed, testing stand, and the rotating shaft of motor connects transmission shaft, and the other end of transmission shaft is provided with and connects the Flywheel disc that test piece is used; Front end panel, the rear bearing sheet of supporting shaft also are set on testing bed, testing stand; Described loading section is included in the block that hangs that is provided with on the testing bed, testing stand, the hinged load-bearing axle with hanging block, and the loading that can on the load-bearing axle, slide is with hanging piece.Pivot bush unit bearing holder (housing, cover) on the described test piece, described load-bearing axle sleeve connects axle sleeve, and described bearing holder (housing, cover) is connected through connecting link with axle sleeve; It mainly acts on is to make the load-bearing axle play a point action, will hang piece and the load-bearing thrust load is loaded on the test piece.
For easy accessibility, header board is set on testing table, the described block that hangs is fixed on the testing table through header board.
For ease, accurately connect transmission shaft, shaft coupling also is set, the rotating shaft of described motor connects transmission shaft through shaft coupling.
In order to realize that rotating speed adjusts easily, described motor is a variable-frequency motor.
Weld fatigue test unit principle of work is: mainly pass through test piece under high speed rotary motion, through setting test period, setting the load change amount, detect STRESS VARIATION and detection weld fatigue intensity in the commissure.
The beneficial effect of the utility model: owing to adopt the rotation of motor-driven test piece, the loading section of steelyard version, and in the commissure of test piece stress test is set and uses foil gauge.Solved the problem that the suffered stress state of fatigue strength, weld seam of existing weld fatigue test unit butt welded seam can't reliably effectively detect.Shortened the test period, saved cost, the life-span that the ability fast detecting goes out weld seam.
Below will combine accompanying drawing and embodiment, the utility model will be carried out comparatively detailed explanation.
Description of drawings
Fig. 1 is a weld fatigue test unit organigram.
Among the figure: 1. testing table, 2. motor, 3. shaft coupling, 4. rear bearing sheet, 5. transmission shaft, 6. front end panel, 7. Flywheel disc, 8. test piece, 9. bearing holder (housing, cover), 10 connecting links, 11 axle sleeves, 12. load-bearing axles, 13. hang piece, 14. and hang block, 15. header boards.
Embodiment
Embodiment 2, and for easy accessibility, a kind of weld fatigue test unit on the basis of embodiment 1, also is provided with header board 15 on testing table 1, and the described block 14 that hangs is fixed on the testing table 1 through header board 15.All the other are with embodiment 1.
Embodiment 3, for ease, accurately connect transmission shaft, and a kind of weld fatigue test unit on the basis of embodiment 1 or 2, also is provided with shaft coupling 3, and the rotating shaft of described motor 2 connects transmission shaft 5 through shaft coupling 3.All the other are with embodiment 1.In order to realize that rotating speed adjusts easily, described motor is a variable-frequency motor.After having assembled the weld fatigue test unit, just can detect STRESS VARIATION and detection weld fatigue intensity through setting test period, setting the load change amount in the commissure.
Claims (4)
1. weld fatigue test unit, it comprises the drive part that drives the test piece rotation, the loading section to test piece loads is provided with stress test in the commissure of test piece and uses foil gauge; It is characterized in that: described drive part is included in the motor that is provided with on the testing bed, testing stand, and the rotating shaft of motor connects transmission shaft, and the other end of transmission shaft is provided with and connects the Flywheel disc that test piece is used; Front end panel, the rear bearing sheet of supporting shaft also are set on testing bed, testing stand; Described loading section is included in the block that hangs that is provided with on the testing bed, testing stand, the hinged load-bearing axle with hanging block, and the loading that can on the load-bearing axle, slide is with hanging piece; Pivot bush unit bearing holder (housing, cover) on the described test piece, described load-bearing axle sleeve connects axle sleeve, and described bearing holder (housing, cover) is connected through connecting link with axle sleeve.
2. weld fatigue test unit as claimed in claim 1 is characterized in that: header board is set on testing table, and the described block that hangs is fixed on the testing table through header board.
3. according to claim 1 or claim 2 weld fatigue test unit, it is characterized in that: shaft coupling is set, and the rotating shaft of described motor connects transmission shaft through shaft coupling.
4. according to claim 1 or claim 2 weld fatigue test unit, it is characterized in that: described motor is a variable-frequency motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120233823 CN202141631U (en) | 2011-07-05 | 2011-07-05 | Weld fatigue testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120233823 CN202141631U (en) | 2011-07-05 | 2011-07-05 | Weld fatigue testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202141631U true CN202141631U (en) | 2012-02-08 |
Family
ID=45552686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120233823 Expired - Fee Related CN202141631U (en) | 2011-07-05 | 2011-07-05 | Weld fatigue testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202141631U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252899A (en) * | 2011-07-05 | 2011-11-23 | 芜湖杰锋汽车动力***有限公司 | Welding seam fatigue testing device |
| CN105149880A (en) * | 2015-09-16 | 2015-12-16 | 中国航空工业集团公司北京航空材料研究院 | Manufacturing method of fatigue test specimen of high-temperature alloy thin-wall welded pipe |
| CN105301482A (en) * | 2015-11-23 | 2016-02-03 | 深圳市金洲精工科技股份有限公司 | Welding strength detection apparatus and drill bit welding strength detection method |
-
2011
- 2011-07-05 CN CN 201120233823 patent/CN202141631U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252899A (en) * | 2011-07-05 | 2011-11-23 | 芜湖杰锋汽车动力***有限公司 | Welding seam fatigue testing device |
| CN105149880A (en) * | 2015-09-16 | 2015-12-16 | 中国航空工业集团公司北京航空材料研究院 | Manufacturing method of fatigue test specimen of high-temperature alloy thin-wall welded pipe |
| CN105149880B (en) * | 2015-09-16 | 2017-10-27 | 中国航空工业集团公司北京航空材料研究院 | A kind of preparation method of the fatigue test piece of high temperature alloy thin walled welds tubing |
| CN105301482A (en) * | 2015-11-23 | 2016-02-03 | 深圳市金洲精工科技股份有限公司 | Welding strength detection apparatus and drill bit welding strength detection method |
| CN105301482B (en) * | 2015-11-23 | 2018-08-21 | 深圳市金洲精工科技股份有限公司 | Weld strength detection device and drill bit weld strength detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20130705 |