CN107727520B - A kind of Multiaxial Non-proportional fatigue test system based on centrifugation load - Google Patents
A kind of Multiaxial Non-proportional fatigue test system based on centrifugation load Download PDFInfo
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- CN107727520B CN107727520B CN201710815354.5A CN201710815354A CN107727520B CN 107727520 B CN107727520 B CN 107727520B CN 201710815354 A CN201710815354 A CN 201710815354A CN 107727520 B CN107727520 B CN 107727520B
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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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
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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
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0026—Combination of several types of applied forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
- G01N2203/0423—Chucks, fixtures, jaws, holders or anvils using screws
Abstract
The present invention relates to a kind of Multiaxial Non-proportional fatigue test systems based on centrifugation load.The present invention includes load transducer, centrifugation multi-axial non-proportional loading portion and fatigue testing specimen；Being centrifuged multi-axial non-proportional loading portion includes rotation load cross bar, load support and clamp assembly, rotation load cross bar is mounted in load support by bearing, rotation load cross bar both ends are respectively fixed with left avertence concentric mechanism, right avertence concentric mechanism, and load support is located among left avertence concentric mechanism and right avertence concentric mechanism；Clamp assembly includes upper fixture and lower fixture, and load support is fixed with the upper fixture and drives upper fixture to apply Multiaxial Non-proportional fatigue load to the fatigue testing specimen in rotation load cross bar rotation.The present apparatus applies Multiaxial Non-proportional fatigue load by way of centrifugal force, existing multiaxle fatigue experimental system can be made up to be difficult to apply the deficiency of the combined loads such as disproportional tension and compression-bending, bending-torsion, provide efficiency test means to carry out fatigue of materials performance study under the conditions of complex loading.
Description
Technical field
The invention belongs to Material Testing Technology fields, are specifically related to a kind of Multiaxial Non-proportional fatigue based on centrifugation load
Pilot system.
Background technique
In practical applications, many engineering components and component of machine subject the effect of multiaxis cyclic loading.For example, past
The crankshaft of compound compression machine and reciprocating pump bears to come the time-varying moment of flexure of self-propelling device and connecting rod and the comprehensive function of torque, and automobile passes
Moving axis is subjected to the synergy for the axial stress that the superposition of the shear stress as caused by torque is generated by bending, towering tower class equipment wind
Fatigue load of shaking and the effect for changing internal pressure, submarine pipeline bear ocean current and induce vortex-induced vibration and fluctuation internal pressure effect etc..Fatigue
It is one of its most common failure mode.Although the research about fatigue, which has, exceedes one-hundred-year history, but still focuses mostly on and answer in single shaft
In terms of fatigue rupture caused by power acts on.With the continuous deepening of research, non-proportional loading problem has caused more and more concerns.
The fatigue tester of Current commercial mainly the modes such as loads using axially loaded, rotoflector, although wherein one
Tension and compression-torsion combination load may be implemented a bit, but still be difficult to meet the non-proportional loadings such as disproportional tension and compression-bending, bending-torsion
Test demand, it would be highly desirable to corresponding multiaxle fatigue experimental system is researched and developed, to carry out fatigue of materials performance study under the conditions of complex loading
Effective research technique is provided.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of Multiaxial Non-proportional fatigue test systems based on centrifugation load
System can make up existing commercialized multiaxle fatigue experimental system and be difficult to apply the combination such as disproportional tension and compression-bending, bending-torsion
The deficiency of load provides effective research technique to carry out the fatigue of materials performance study under the conditions of complex loading.
In order to achieve the object of the present invention, the invention adopts the following technical scheme:
A kind of Multiaxial Non-proportional fatigue test system based on centrifugation load, including load transducer, the centrifugation non-ratio of multiaxis
Example loading unit and fatigue testing specimen；The centrifugation multi-axial non-proportional loading portion includes rotation load cross bar, load support and folder
Has component, the rotation load cross bar is mounted in the load support by bearing, and rotation load cross bar left end is fixed
There is left avertence concentric mechanism, the rotation load cross bar right end is fixed with right avertence concentric mechanism, and the load support is located at the left avertence heart
Among mechanism and right avertence concentric mechanism；The clamp assembly include vertically clamp fatigue testing specimen upper fixture and lower fixture, it is described
Load support is fixed with the upper fixture and drives the upper fixture to try the fatigue in rotation load cross bar rotation
Sample applies Multiaxial Non-proportional fatigue load.
Further, which includes driving motor and driving section, and the driving section includes connecting with the driving motor
Drive rod, the drive rod and the rotation load cross bar it is axially parallel, upper driving wheel disk, institute are fixed on the drive rod
State rotation load cross bar middle position and be fixed with underdrive wheel disc, the upper driving wheel disk by driving belt drive it is described under pass
Runner disc rotation.
Further, the left avertence concentric mechanism includes left load wheel disc and left mass block, and the right avertence concentric mechanism includes the right side
Wheel disc and right mass block are loaded, the left load wheel disc, right load wheel disc are that round and diameter is equal, the left loading wheel
Disk, right loading wheel disk center are axially coincident with the rotation load cross bar, and the left mass block is mounted on the left loading wheel
Any place of plate edge simultaneously constitutes the left avertence concentric mechanism, and the right mass block is mounted on any of the right loading wheel plate edge
Place simultaneously constitutes the right avertence concentric mechanism.
Further, rotation load cross bar both ends are in suspended state, and the rotation load cross bar includes for installing
State the dynamic load cross bar of left-hand rotation of left load wheel disc and the dynamic load cross bar of right-hand rotation for installing the right load wheel disc, the left side
Rotation load cross bar is mounted in the load support by the dynamic load cross bar bearing that turns left, and the dynamic load cross bar of turning right passes through
Dynamic load cross bar bearing of turning right is mounted in the load support.
Further, the left load wheel disc, the right edge for loading wheel disc convex to form flange, the left matter to two sides respectively
C-type bayonet is respectively equipped on gauge block, right mass block, the left mass block is engaged and installed in the left loading wheel by c-type bayonet
On the flange of disk, the right mass block is engaged and installed on the flange of the right load wheel disc by c-type bayonet.
Further, which further includes ballistic support structure, and the ballistic support structure includes support base and vertical
It is mounted in support base and left stringer board positioned opposite, right stringer board, is connected with and is horizontally mounted between the left stringer board, right stringer board
Transverse slat, offer left stringer board security protection hole on the left stringer board, right stringer board security protection hole offered on the right stringer board,
Transverse slat security protection hole is offered on the transverse slat；
Left Drive bearing is installed on the left stringer board, right drive bearing, the drive rod are installed on the right stringer board
It is mounted in the ballistic support structure by the Left Drive bearing, right drive bearing；
Rotation load cross bar left end is across the left stringer board security protection hole and left stringer board security protection hole
There are safe spacing, rotation load cross bar right end pass through the right stringer board security protection hole and with right stringer board security protection hole
Between there are safe spacing, the upper fixture is in the shape of a rod and vertically passes through transverse slat security protection hole and anti-safely with transverse slat
There are safe spacing, the upper fixture upper end and load supports to fix between guard aperture, and the upper fixture lower end acts on institute
State fatigue testing specimen.
Further, the load support is made of the square box arranged vertically, and the rotation load cross bar passes perpendicularly through institute
One group of opposite frame side of load support is stated, the underdrive wheel disc is located in the frame of the load support, the left load wheel disc,
Right load wheel disc is symmetrically mounted on the two sides of the load support.
Further, load transducer is disposed in the support base, the lower fixture is placed on the load transducer
On.
The beneficial effects of the present invention are:
1), the present invention at work, be centrifuged multi-axial non-proportional loading portion by adjusting quality block size, fixed position and
The revolving speed for loading wheel disc can apply different disproportional tension and compression, bending for the fatigue testing specimen, reverse the fatigue that combination is constituted
Load (for multiaxis is relatively uniaxial, that is, includes two kinds and the above plus load forms such as tension and compression, bending, torsion, disproportional
Refer to and change between various forms of plus loads in non-linear relation), existing commercialized multiaxle fatigue experimental system can be made up
System is difficult to apply the deficiency of the combined loads such as disproportional tension and compression-bending, bending-torsion, to carry out the material under the conditions of complex loading
Expect that fatigue behaviour research provides effective research technique.
2), being centrifuged section at the loading wheel plate edge in multi-axial non-proportional loading portion is T-type, and mass block is equipped with c-type bayonet,
The mass block is fastened by bolts in the edge of the load wheel disc, and the mass block can be along the loading wheel plate edge
Any position is fastened, to meet the test demand of various combination load.
3), the driving belt of driving section can eliminate the influence of centrifugation multi-axial non-proportional loading portion self weight by adjusting elastic,
In addition, belt can hang centrifugation multi-axial non-proportional loading portion when fatigue testing specimen fracture, effective protection fatigue testing specimen breaks
Mouthful.
4), the ballistic support structure in the present invention and between the centrifugation multi-axial non-proportional loading portion equipped with load sensing
Device can timely and effectively control centrifugation and load multiaxis to monitor load change during fatigue test and judge that sample fails
Disproportional fatigue test system is shut down.
5) it, is equipped with security protection hole on the security protection transverse slat, left stringer board and right stringer board of the ballistic support structure, point
It is other to upper fixture, turn left dynamic load cross bar and dynamic load cross bar of turning right plays limitation and protective effect, the configuration of the present invention is simple effectively,
Convenient for Operation and Maintenance.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is security protection and support construction schematic diagram.
Fig. 3 is centrifugation multi-axial non-proportional loading structural schematic diagram.
Fig. 4 is drive mechanism schematic diagram.
Fig. 5 is driving motor structural schematic diagram.
Fig. 6 a is a kind of typical mass block position schematic diagram.
Fig. 6 b is the tension and compression-bending disproportional fatigue load formed with the variation of mass block phase corresponding with Fig. 6 a
Waveform diagram.
Fig. 7 a is another typical mass block position schematic diagram.
Fig. 7 b is the tension and compression-bending disproportional fatigue load formed with the variation of mass block phase corresponding with Fig. 7 a
Waveform diagram.
Meaning marked in the figure is as follows:
10- ballistic support structure 11- support base 12- transverse slat
12A- transverse slat security protection hole 13- left stringer board 13A- left stringer board security protection hole
14- right stringer board 14A- right stringer board security protection hole
20- load transducer
30- is centrifuged fixture 31B- upper fixture under multi-axial non-proportional loading portion 31A-
The right mass block 33A- of the left mass block 32B- of 32A- turns left to move load cross bar
33B-, which turns right, moves the load right load wheel disc of the left load wheel disc 34B- of cross bar 34A-
35A- turns left to move the dynamic load cross bar bearing of load cross bar bearing 35B- right-hand rotation
36- load support 37- underdrive wheel disc
40- fatigue testing specimen
The right drive bearing of the driving section 50- 51A- Left Drive bearing 51B-
52- drive rod 53- upper driving wheel disk 54- driving belt 55- Left Drive flange
The right drive flange 62- motor 63- motor cabinet of 60- driving motor 61-
Specific embodiment
More specific detail is made to technical solution of the present invention below with reference to embodiment:
As shown in Fig. 1~5, the Multiaxial Non-proportional fatigue test system based on centrifugation load includes following component part:
Ballistic support structure 10, load transducer 20, centrifugation multi-axial non-proportional loading portion 30, fatigue testing specimen 40, driving section 50, driving electricity
Machine 60, as shown in Figure 1.The driving motor 60 is provided via the driving section 50 to the centrifugation multi-axial non-proportional loading portion 30
Power is that the fatigue testing specimen 40 applies disproportional fatigue load by the centrifugation multi-axial non-proportional loading portion 30, described anti-
It protects and is equipped with load transducer 20 between support construction 10 and the centrifugation multi-axial non-proportional loading portion 30.
As shown in Fig. 2, the ballistic support structure 10 includes support base 11, security protection transverse slat 12, a security protection left side
Stringer board 13 and the right stringer board 14 of security protection etc., the load transducer 20 is fixed on the support base 11, the transverse slat
12, transverse slat security protection hole 12A, left stringer board security protection hole 13A and right stringer board are respectively equipped on left stringer board 13 and right stringer board 14
Security protection hole 14A, the left stringer board security protection hole 13A play limitation and protective effect to the dynamic load cross bar 33A that turns left, described
Right stringer board security protection hole 14A plays limitation and protective effect, transverse slat security protection hole 12A to the dynamic load cross bar 33B that turns right
Limitation and protective effect are risen to upper fixture 31B.
As shown in figure 3, the centrifugation multi-axial non-proportional loading portion 30 includes lower fixture 31A, upper fixture 31B, left mass block
32A, right mass block 32B, the dynamic load cross bar 33A that turns left, turn right dynamic load cross bar 33B, left load wheel disc 34A, right load wheel disc
34B, the dynamic load cross bar bearing 35A that turns left, turn right dynamic load cross bar bearing 35B, load support 36 and underdrive wheel disc 37.Pass through
Adjust the left mass block 32A and the right mass block 32B size, fixed position and the left load wheel disc 34A and described
Right load wheel disc 34B revolving speed can apply different tension and compression for the fatigue testing specimen 40, bending, reverse combined disproportional fatigue
The edge of load, the left load wheel disc 34A and right load wheel disc 34B are using T-type section, the left mass block 32A and described
Right mass block 32B uses c-type bayonet, and is fastened respectively to the left load wheel disc 34A's and right load wheel disc 34B by bolt
Edge, the left mass block 32A and the right mass block 32B can be fastened along any position of load wheel disc circumference, with
Meet the test demand of various combination load.The disproportional fatigue load that rotating centrifugal generates passes through the upper fixture 31B, described
Turn left the dynamic load cross bar 33A and dynamic load cross bar 33B that turns right, and is applied to after being amplified according to lever principle described tired
Labor sample 40, the upper fixture 31B, the dynamic load cross bar 33A of the left-hand rotation and the dynamic cross bar 33B that loads that turns right pass through load branch
Support 36 is connected, and 36 left and right sides of load support turns left to move load cross bar 33A and the dynamic load cross bar 33B that turns right with described
Between equipped with the dynamic load cross bar bearing 35A of the left-hand rotation convenient for rotation and the dynamic load cross bar bearing 35B that turns right, it is described plus
It is equipped in the frame of load support 36 and drives the dynamic load cross bar 33A of the left-hand rotation and the dynamic biography down for loading cross bar 33B rotation of turning right
Runner disc 37.
The driving section 50 includes Left Drive bearing 51A, right drive bearing 51B, drive rod 52, upper driving wheel disk 53, passes
Dynamic belt 54 and Left Drive flange 55, the driving section 50 are driven by the Left Drive flange 55 by the driving motor 60,
The drive rod 52 via beneficial to rotation the Left Drive bearing 51A and the right drive bearing 51B be installed on the protection
In support construction 10, the drive rod 52 is equipped with the upper driving wheel disk 53, is the underdrive by the driving belt 54
Wheel disc 37 provides power, and the driving belt 54 can adjust elastic to eliminate the centrifugation multi-axial non-proportional loading portion 30 self weight
The fracture after failing with the protection fatigue testing specimen 40 is influenced, as shown in Figure 4.
The driving motor 60 includes right drive flange 61, motor 62 and motor cabinet 63, the right drive flange 61 and institute
The Left Drive flange 55 connection of driving section 50 is stated, the motor 62 is dynamic needed for providing for this centrifugation multi-axial non-proportional loading portion
Power, the motor cabinet 63 are that the motor 62 provides support, and plays vibration and noise reducing, as shown in Figure 5.
It elaborates below with reference to Fig. 1~6 pair test process of the invention:
1, small to feel at ease first by after mach 40 sanding and polishing of fatigue testing specimen when carrying out Multiaxial Non-proportional fatigue test
Loaded between lower specimen holder 31A and upper specimen holder 31B, 40 surface of fatigue testing specimen of damaging is avoided.
2, it is needed to select left mass block 32A and right mass block 32B size according to test, and after adjusting phase difference, passed through
Fastening bolt is individually fixed on left load wheel disc 34A and right load wheel disc 34B.
Fig. 6 a, 6b and Fig. 7 a, 7b give two kinds of typical non-proportion loading examples.
It is wherein a kind of typical mass block position view shown in Fig. 6 a, Fig. 6 b is corresponding with Fig. 6 a with quality
The variation of block phase and the tension and compression-bending disproportional fatigue load waveform diagram formed, left mass block 32A and the right side shown in Fig. 6 a
The position mass block 32B is identical, and flexural fatigue load lags behind 90 ° of drawingand pressing fatigue load.
If Fig. 7 a, 7b show another typical mass block position view, Fig. 7 b is corresponding with Fig. 7 a with matter
The variation of gauge block phase and the bending-torsion disproportional fatigue load waveform diagram formed, left mass block 32A shown in Fig. 7 a and
The position right mass block 32B is on the contrary, flexural fatigue load is ahead of 90 ° of torsional fatigue load.
3, left mass block 32A and right mass block 32B are adjusted to horizontal position, constantly adjust the elastic of driving belt 54, directly
It is zero to eliminate the influence that centrifugation multi-axial non-proportional loading portion 30 is self-possessed to 20 apparent value of load transducer.
4, slowly each component operation in rotation drive rod 52 observation centrifugation multi-axial non-proportional loading portion 30 and driving section 50 is
It is no steady, check transverse slat security protection hole 12A, the left stringer board security protection hole 13A and right stringer board safety of ballistic support structure 10
Anti- guard aperture 14A and the upper fixture 31B in centrifugation multi-axial non-proportional loading portion 30, turn left to move load cross bar 33A and dynamic load cross of turning right
Whether there are enough safe distances between bar 33B.
5, according to specific test needs, suitable 60 revolving speed of driving motor is calculated and is arranged, driving motor 60 is started, is started
Test.
6, after completing test, the fatigue testing specimen 40 of failure is carefully removed, protects fracture surface of sample so as to follow-up test observation
With analysis, size, the position of left mass block 32A and right mass block 32B, left load wheel disc 34A and the right load wheel disc are recorded
The revolving speed and fatigue load of 34B recycles cycle.
Claims (8)
1. it is a kind of based on centrifugation load Multiaxial Non-proportional fatigue test system, it is characterised in that: including load transducer (20),
It is centrifuged multi-axial non-proportional loading portion (30) and fatigue testing specimen (40)；The centrifugation multi-axial non-proportional loading portion (30) includes rotation
Cross bar, load support (36) and clamp assembly are loaded, the rotation load cross bar is mounted on the load by bearing and supports
(36) on, rotation load cross bar left end is fixed with left avertence concentric mechanism, and the rotation load cross bar right end is fixed with the right avertence heart
Mechanism, the load support (36) are located among the left avertence concentric mechanism and right avertence concentric mechanism；The clamp assembly includes along perpendicular
To the upper fixture (31B) and lower fixture (31A) of clamping fatigue testing specimen (40), the load support (36) and the upper fixture
(31B) is fixed and drives the upper fixture (31B) to apply the fatigue testing specimen (40) in rotation load cross bar rotation
Multiaxial Non-proportional fatigue load.
2. the Multiaxial Non-proportional fatigue test system as described in claim 1 based on centrifugation load, it is characterised in that: the system
Including driving motor (60) and driving section (50), the driving section (50) includes the transmission connecting with the driving motor (60)
Bar (52), the drive rod (52) and rotation load cross bar are axially parallel, are fixed with transmission on the drive rod (52)
Wheel disc (53), rotation load cross bar middle position are fixed with underdrive wheel disc (37), and the upper driving wheel disk (53) passes through
Driving belt (54) drives underdrive wheel disc (37) rotation.
3. the Multiaxial Non-proportional fatigue test system as claimed in claim 2 based on centrifugation load, it is characterised in that: the left side
Eccentric stiffener includes left load wheel disc (34A) and left mass block (32A), and the right avertence concentric mechanism includes right load wheel disc
(34B) and right mass block (32B), the left load wheel disc (34A), right load wheel disc (34B) are that round and diameter is equal, institute
State axially coincident, the left quality of left load wheel disc (34A), the right load wheel disc center (34B) and the rotation load cross bar
Block (32A) is mounted on any place at described left load edge wheel disc (34A) and constitutes the left avertence concentric mechanism, the right mass block
(32B) is mounted on any place at described right load edge wheel disc (34B) and constitutes the right avertence concentric mechanism.
4. the Multiaxial Non-proportional fatigue test system as claimed in claim 3 based on centrifugation load, it is characterised in that: described turn
Dynamic load cross bar both ends are in suspended state, and the rotation load cross bar includes the left side for installing left load wheel disc (34A)
Rotation loads cross bar (33A) and dynamic load cross bar (33B) of right-hand rotation for installing right load wheel disc (34B), the left side
Rotation load cross bar (33A) is mounted on the load support (36) by dynamic load cross bar bearing (35A) of turning left, the right-hand rotation
Dynamic load cross bar (33B) is mounted on the load support (36) by dynamic load cross bar bearing (35B) of turning right.
5. the Multiaxial Non-proportional fatigue test system as claimed in claim 3 based on centrifugation load, it is characterised in that: the left side
Load wheel disc (34A), right load wheel disc (34B) edge convex to form flange to two sides respectively, the left mass block (32A),
C-type bayonet is respectively equipped on right mass block (32B), the left mass block (32A) is engaged and installed in the left side by c-type bayonet and adds
On the flange for carrying wheel disc (34A), the right mass block (32B) is engaged and installed in the right load wheel disc (34B) by c-type bayonet
Flange on.
6. the Multiaxial Non-proportional fatigue test system as claimed in claim 4 based on centrifugation load, it is characterised in that: the system
It further include ballistic support structure (10), the ballistic support structure (10) includes support base (11) and is vertically mounted on support
On pedestal (11) and left stringer board (13) positioned opposite, right stringer board (14), the left stringer board (13), right stringer board connect between (14)
There is the transverse slat (12) being horizontally mounted, offers left stringer board security protection hole (13A), the right stringer board on the left stringer board (13)
(14) right stringer board security protection hole (14A) is offered on, offers transverse slat security protection hole (12A) on the transverse slat (12)；
It is equipped with Left Drive bearing (51A) on the left stringer board (13), right drive bearing is installed on the right stringer board (14)
(51B), the drive rod (52) are mounted on the ballistic support by the Left Drive bearing (51A), right drive bearing (51B)
In structure (10)；
Rotation load cross bar left end pass through the left stringer board security protection hole (13A) and with left stringer board security protection hole
There are safe spacing between (13A), the rotation load cross bar right end pass through the right stringer board security protection hole (14A) and with the right side
There are safe spacings between stringer board security protection hole (14A), and the upper fixture (31B) is in the shape of a rod and vertically passes through the transverse slat
Security protection hole (12A) and between transverse slat security protection hole (12A) there are safe spacing, the upper fixture upper end (31B) with
The load support (36) is fixed, and upper fixture (31B) lower end acts on the fatigue testing specimen (40).
7. the Multiaxial Non-proportional fatigue test system as claimed in claim 4 based on centrifugation load, it is characterised in that: described to add
It carries support (36) to be made of the square box arranged vertically, the rotation load cross bar passes perpendicularly through the one of the load support (36)
The opposite frame side of group, the underdrive wheel disc (37) are located in the frame of the load support (36), the left load wheel disc (34A),
Right load wheel disc (34B) is symmetrically mounted on the two sides of the load support (36).
8. the Multiaxial Non-proportional fatigue test system as claimed in claim 6 based on centrifugation load, it is characterised in that: the branch
It is disposed with load transducer (20) in support pedestal (11), the lower fixture (31A) is placed on the load transducer (20).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710815354.5A CN107727520B (en) | 2017-09-12 | 2017-09-12 | A kind of Multiaxial Non-proportional fatigue test system based on centrifugation load |
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| CN201710815354.5A CN107727520B (en) | 2017-09-12 | 2017-09-12 | A kind of Multiaxial Non-proportional fatigue test system based on centrifugation load |
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| CN107727520B true CN107727520B (en) | 2019-08-02 |
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| CN112254940A (en) * | 2019-07-05 | 2021-01-22 | 中车长春轨道客车股份有限公司 | Testing device and testing method for axle fatigue test |
| CN112730046B (en) * | 2020-12-29 | 2023-07-18 | 济南鑫光试验机制造有限公司 | Integrated electric flat pushing chuck |
| CN113884399A (en) * | 2021-09-28 | 2022-01-04 | 兰州理工大学 | Metal material fatigue resistance detection device |
| CN114034585A (en) * | 2021-10-28 | 2022-02-11 | 北京理工大学 | Spline fatigue test device |
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| FR2337337A1 (en) * | 1975-12-31 | 1977-07-29 | Anvar | Fatigue testing of small cross section wires - involves rotational flexing of sample retained by gluing ends to clamps |
| SU1640599A1 (en) * | 1989-04-11 | 1991-04-07 | Всесоюзный научно-исследовательский институт горной геомеханики и маркшейдерского дела | Test system for fatigue testing of samples of materials |
| US8443679B2 (en) * | 2007-08-14 | 2013-05-21 | Frank Thilo Trautwein | Testing device with a drive, which converts rotational movement into a reciprocating movement of variable amplitude |
| CN103900916B (en) * | 2014-03-06 | 2016-03-02 | 燕山大学 | A kind of stretch bending turns round Multi-axial Loading fatigue tester |
| RU148280U1 (en) * | 2014-07-22 | 2014-11-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Астраханский государственный технический университет", ФГБОУ ВПО "АГТУ" | FACILITY TEST INSTALLATION |
| CN104297046B (en) * | 2014-10-08 | 2016-08-17 | 中国矿业大学 | A kind of steel wire multiaxis fretting fatigue testing device and method |
| CN105424476B (en) * | 2015-11-04 | 2018-11-23 | 中国直升机设计研究所 | A kind of spherical plain bearing rod end dual-axis rotation load detection device |
| CN106768931B (en) * | 2016-12-02 | 2023-04-07 | 长春越洋汽车零部件有限公司 | Multi-shaft thermal state fatigue testing machine for corrugated pipe |
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2017
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