CN206540769U - A kind of hydraulic chuck of electo hydraulic servocontrolled fatigue testing machine - Google Patents
A kind of hydraulic chuck of electo hydraulic servocontrolled fatigue testing machine Download PDFInfo
- Publication number
- CN206540769U CN206540769U CN201621446932.XU CN201621446932U CN206540769U CN 206540769 U CN206540769 U CN 206540769U CN 201621446932 U CN201621446932 U CN 201621446932U CN 206540769 U CN206540769 U CN 206540769U
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- Prior art keywords
- hydraulic
- testing machine
- electo
- fatigue testing
- piston
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- Expired - Fee Related
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- 238000009661 fatigue test Methods 0.000 title claims abstract description 15
- 210000004907 gland Anatomy 0.000 claims abstract description 10
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 10
- 239000002184 metal Substances 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a kind of hydraulic chuck of electo hydraulic servocontrolled fatigue testing machine, the hydraulic chuck of electo hydraulic servocontrolled fatigue testing machine includes hydraulic cylinder（1）, piston（2）, dop body（3）, V-block（4）Two, gland（5）, hexagon socket cap head screw M8（6）Four.The utility model uses hydraulic cylinder（1）Step up test specimen, increase clamping force, the appearance that test specimen slides situation is effectively reduced, especially under the operating mode of high frequency.Gland passes through 4 hexagon socket cap head screw M8（6）Make piston（2）With V-block（4）It is encapsulated in dop body（3）It is interior, the stability of fixture can be improved.This fixture structure is simple, and practicality is good, is easy to promote.
Description
Technical field
The utility model is related to a kind of hydraulic chuck of electo hydraulic servocontrolled fatigue testing machine, belongs to mechanics of materials fatigue tester
Field, it is adaptable to cylindrical specimen stretching, compression, crack expansion test on fatigue tester.
Background technology
Machine components easily fail, and under sufficiently large alternate stress effect, are carved in the mutation of hardware profile or surface
The position such as trace or internal flaw, all may trigger microfissure because of larger stress concentration.Scattered microfissure is by assembling
Communication will form macroscopic cracking.Established macroscopic cracking rallentando extends, and member cross-sections progressively weaken, when reaching one
When fixed limit is spent, component can be broken suddenly.The fatigue of above-mentioned failure phenomenon, referred to as metal caused by because of metal alternate stress.Static load
The lower good material of plastic property, when bearing alternate stress, is not often substantially plastically deformed in stress less than yield limit
In the case of, fracture suddenly.Fatigue fracture is significantly divided into two regions：Relatively smooth Crack Extension area and more coarse
Fracture zone.After crackle is formed, when alternate stress makes the both sides of crackle and the when of opening and close, mutually extruding grind repeatedly, it is smooth
What area was just formed by.The change of the interruption and size of load, many Crack frontal lines are left in smooth areas.As for coarse
Fracture zone, then finally break to form suddenly.Statistics shows, the failure of machine components, and there are about 70% or so is that fatigue is drawn
Rise, and most of the accident caused is catastrophic.So, it is to have by the antifatigue performance of experimental study metal material
Practical significance.
Fatigue tester, is a kind of stretching for being mainly used in measure metal and its alloy material under room temperature state, compression
Or draw, press the machine of the experiment on fatigue properties of stress alternation.In the axial fatigue performance test for metal material, use at present
Equipment be electro-hydraulic servo fatigue experimental machine mostly.Fixture when usual fatigue experimental machine has Wedge gripping, horizontal sliding fixture and cylinder,
Have the disadvantage insufficient clamping force, in fact it could happen that test specimen sliding phenomenon, cause test failure.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a kind of liquid of electo hydraulic servocontrolled fatigue testing machine
Chuck is pressed, the hydraulic chuck simple structure of the electo hydraulic servocontrolled fatigue testing machine is easy to use, be easy to promote.
The utility model realizes that its utility model purpose is adopted the technical scheme that：A kind of electo hydraulic servocontrolled fatigue testing machine
Hydraulic chuck, including hydraulic cylinder, piston, dop, V-block, gland, hexagon socket cap head screw M8, the hydraulic cylinder body
End is cylindrical structural, is axially arranged with hole slot, there is two through holes on its circumference, and convenient insertion bearing pin is connected thereto, hydraulic cylinder
Inside there is spring, upspring automatically during oil return, the piston rod leading portion of hydraulic cylinder has screw thread, coordinate with piston.
Further, leading portion has screwed hole on piston, coordinates with piston rod, and there is annular groove in stage casing, and latter end is tied for cylinder
Structure.
Further, the V-block is provided with through hole, is divided into two parts from centre.
Further, dop body has shoulder hole, two cylindrical holes, a conical bore.
Further, four through holes are distributed on gland, hexagon socket cap head screw M8（6）It is straight that outside diameter is more than through hole
Footpath.
The beneficial effects of the utility model are：Use hydraulic cylinder（1）Step up test specimen, increase clamping force, effectively reduce
Test specimen slides the appearance of situation, especially under the operating mode of high frequency.Gland passes through 4 hexagon socket cap head screw M8（6）Make work
Plug（2）With V-block（4）It is encapsulated in dop body（3）It is interior, the stability of fixture can be improved.This fixture structure is simple, practicality
It is good, it is easy to promote.
Brief description of the drawings
Fig. 1 is structure sectional view of the present utility model；
Fig. 2 is structure upward view of the present utility model；
Fig. 3 is structure top view of the present utility model；
Fig. 4 is that structure of the present utility model clamps test specimen schematic diagram.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
Embodiment
As Fig. 1-4 shows that a kind of embodiment of the present utility model is a kind of electo hydraulic servocontrolled fatigue testing machine
Hydraulic chuck, including hydraulic cylinder 1, piston 2, dop body 3, V-block 4, gland 5, hexagon socket cap head screw M8 6.During oil-feed,
Hydraulic cylinder 1 promotes piston 2 to move, and piston 2 promotes V-block 4 to clamp test specimen.4 points of V-block is two pieces, can effectively clamp test specimen.Liquid
Cylinder pressure 1 is connected by the screw thread on piston rod with piston 2, and hydraulic cylinder body end is provided with hole slot, can be fixed on it with bearing pin
On electo hydraulic servocontrolled fatigue testing machine.There is spring in hydraulic cylinder, upspring automatically during oil return.Gland 5 passes through 4 interior hexagonal cylindrical head spiral shells
Nail M8 6 makes piston 2 be encapsulated in V-block 4 in dop body 3.
Leading portion has screwed hole on piston 2, coordinates with piston rod, and there is annular groove in stage casing, and latter end is cylindrical structural.
There are shoulder hole, two cylindrical holes, for placing piston 2, a conical bore, for placing V-block 4 in dop body 3.
Four through holes are distributed on gland 5, and the outside diameters of hexagon socket cap head screw M8 6 are more than through-hole diameter.
The application overall structure is simple and reliable, ingenious in design, is conducive to promoting the use of.
Those skilled in the technology concerned should be clear and definite, and embodiment described above is used as illustrating of the present utility model,
And be not used as limiting of the present utility model, as long as in essential scope of the present utility model, being done to above-described embodiment
Change, modification will all fall in right of the present utility model.
Claims (5)
1. a kind of hydraulic chuck of electo hydraulic servocontrolled fatigue testing machine, including hydraulic cylinder（1）, piston（2）, dop body（3）, V-block
（4）, gland（5）, hexagon socket cap head screw M8（6）, it is characterised in that：The hydraulic cylinder（1）Tied for cylinder cylinder body end
Structure, is axially arranged with hole slot, there is two through holes on its circumference, and convenient insertion bearing pin is connected thereto, hydraulic cylinder（1）Inside there is spring, return
Upspring automatically when oily, hydraulic cylinder（1）Piston rod leading portion have screw thread, with piston（2）Coordinate.
2. a kind of hydraulic chuck of electo hydraulic servocontrolled fatigue testing machine according to claim 1, it is characterised in that：Piston（2）
Upper leading portion has screwed hole, coordinates with piston rod, and there is annular groove in stage casing, and latter end is cylindrical structural.
3. a kind of hydraulic chuck of electo hydraulic servocontrolled fatigue testing machine according to claim 1, it is characterised in that：The V-type
Block（4）Provided with through hole, it is divided into two parts from centre.
4. a kind of hydraulic chuck of electo hydraulic servocontrolled fatigue testing machine according to claim 1, it is characterised in that：Dop body
（3）With shoulder hole, two cylindrical holes, a conical bore.
5. a kind of hydraulic chuck of electo hydraulic servocontrolled fatigue testing machine according to claim 1, it is characterised in that：Four through holes
It is distributed on gland, hexagon socket cap head screw M8（6）Outside diameter is more than through-hole diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621446932.XU CN206540769U (en) | 2016-12-27 | 2016-12-27 | A kind of hydraulic chuck of electo hydraulic servocontrolled fatigue testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621446932.XU CN206540769U (en) | 2016-12-27 | 2016-12-27 | A kind of hydraulic chuck of electo hydraulic servocontrolled fatigue testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206540769U true CN206540769U (en) | 2017-10-03 |
Family
ID=59938109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621446932.XU Expired - Fee Related CN206540769U (en) | 2016-12-27 | 2016-12-27 | A kind of hydraulic chuck of electo hydraulic servocontrolled fatigue testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206540769U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769427A (en) * | 2016-12-27 | 2017-05-31 | 浙江理工大学 | A kind of hydraulic chuck of electo hydraulic servocontrolled fatigue testing machine |
| CN108444821A (en) * | 2018-03-15 | 2018-08-24 | 上海工程技术大学 | The adjustable pole sample fatigue test clamper of diameter and assembling, clamping method is clamped |
-
2016
- 2016-12-27 CN CN201621446932.XU patent/CN206540769U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769427A (en) * | 2016-12-27 | 2017-05-31 | 浙江理工大学 | A kind of hydraulic chuck of electo hydraulic servocontrolled fatigue testing machine |
| CN108444821A (en) * | 2018-03-15 | 2018-08-24 | 上海工程技术大学 | The adjustable pole sample fatigue test clamper of diameter and assembling, clamping method is clamped |
| CN108444821B (en) * | 2018-03-15 | 2020-11-10 | 上海工程技术大学 | Clamping diameter-adjustable round bar sample fatigue test clamp and assembling and clamping method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171003 Termination date: 20191227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |