CN107966293A - A kind of axle fatigue test board - Google Patents
A kind of axle fatigue test board Download PDFInfo
- Publication number
- CN107966293A CN107966293A CN201810022450.9A CN201810022450A CN107966293A CN 107966293 A CN107966293 A CN 107966293A CN 201810022450 A CN201810022450 A CN 201810022450A CN 107966293 A CN107966293 A CN 107966293A
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- China
- Prior art keywords
- axle
- hydraulic cylinder
- servo hydraulic
- support frame
- fatigue test
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- 238000009661 fatigue test Methods 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims description 9
- 210000004907 gland Anatomy 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000004044 response Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- 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
-
- 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
- G01N3/36—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by pneumatic or hydraulic means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention discloses a kind of axle fatigue test board, it is characterised in that including：Rack, the first servo hydraulic cylinder, the second servo hydraulic cylinder, the first axle support frame and the second axle support frame in the rack；The first axle support frame and the second axle support frame all have lifting elasticity, the power applied for wheel during simulated driving to axle；First servo hydraulic cylinder and second servo hydraulic cylinder provide a downward pressure, the power applied for load during simulated driving to axle to axle；During detection, the size of the power of axle is applied to by varying first servo hydraulic cylinder and/or second servo hydraulic cylinder, the power that load, wheel under uneven road conditions are applied to axle is simulated so as to reach.Stressing conditions of the axle in uneven road conditions are carried out perfect reproduction, detection is quick and precisely, with strong points by the advantages of present invention utilizes servo hydraulic cylinder quick response.
Description
Technical field
The present invention relates to vehicle axles parameter detecting experimental rig, more particularly to a kind of axle fatigue test board.
Background technology
Axle is a kind of vehicle component, its middle part is connected by hanging with vehicle frame, its both ends installing wheel, its work(
Can transmit all directions active force and its caused moment of flexure and moment of torsion between vehicle frame and wheel.It bear automobile performance and
The important mission of safety, is a critically important part.When the vehicle is running, axle can be subject to powerful active force and torque,
Therefore, the fatigue strength of axle itself need to reach certain requirement, how know whether axle is safe and reliable, this is just needed specially
Machine fatigue detecting is carried out to it.
Current axle fatigue detection device, is all that axle is installed in rigid support device, then passes through application
External force detects the anti-fatigue performance of axle.One kind as described in the Chinese utility model patent of Publication No. CN205719511U
Axle fatigue detection device.However, for some heavy goods vehicles (especially trailer), the unexpected fracture of its axle is often sent out
Life is on some rugged road surfaces, such as hollow section, deceleration strip section.Thus, how to detect axle in bumps not
The fatigue behaviour of level road section, is of great significance safe driving tool.
The content of the invention
It is an object of the invention to provide a kind of testing stand that can detect axle fatigue performance under uneven road conditions.
To achieve the above objectives, the present invention adopts the following technical scheme that.
A kind of axle fatigue test board, it is characterised in that including：Rack, the first servo-fluid in the rack
Cylinder pressure, the second servo hydraulic cylinder, the first axle support frame and the second axle support frame；The first axle support frame and described
Two axle support framves all have lifting elasticity, the power applied for wheel during simulated driving to axle；First servo
Hydraulic cylinder and second servo hydraulic cylinder provide a downward pressure to axle, for load during simulated driving to car
The power that axis applies；During detection, axle is applied to by varying first servo hydraulic cylinder and/or second servo hydraulic cylinder
Power size, simulate the power that load, wheel under uneven road conditions are applied to axle so as to reach.
As a further illustration of the above scheme, crossbeam, first servo hydraulic cylinder are equipped with the top of the rack
It is installed on second servo hydraulic cylinder on the crossbeam.
As a further illustration of the above scheme, the first axle support frame and the second axle support frame wrap respectively
Axle mounting portion and spring mechanism are included, the axle mounting portion is used for placing axle, and the spring mechanism is arranged to the axle
Mounting portion provides support force.
As a further illustration of the above scheme, axle placing groove is equipped with the axle mounting portion, the corresponding car
Axis placing groove is equipped with gland, so as to which axle is limited in the axle placing groove.
As a further illustration of the above scheme, it is fixed with expansion board, the spring in the bottom of the axle placing groove
Mechanism includes being arranged on the spring at the expansion board both ends.
As a further illustration of the above scheme, installation site of the spring in the expansion board is adjustable.
As a further illustration of the above scheme, between first servo hydraulic cylinder and second servo hydraulic cylinder
Relative position is adjustable.
As a further illustration of the above scheme, between the first axle support frame and the second axle support frame
Relative position is adjustable.
As a further illustration of the above scheme, the detection that the axle fatigue test board is used for Trailer car shaft is tested.
The beneficial effects of the invention are as follows：
During detection, the size of the power of axle is applied to by varying the first servo hydraulic cylinder and/or the second servo hydraulic cylinder,
The power that axle is applied under uneven road conditions is simulated so as to reach.After the size of change power reaches certain number, axle is detected
There are flawless, phenomenon of rupture to occur, so as to judge axle fatigue life.The present invention is excellent using servo hydraulic cylinder quick response
The kinematics parameters of uneven road conditions are carried out perfect reproduction, detection is quick and precisely, with strong points by point on testing stand.
Brief description of the drawings
Fig. 1 show Trailer car shaft fatigue test board structure diagram provided by the invention.
Fig. 2 show the side view of Fig. 1.
Description of reference numerals：
1：First servo hydraulic cylinder, 2：Second servo hydraulic cylinder, 3：First axle support frame, 4：Second axle support frame,
5：Rack, 6：Crossbeam, 7：Axle placing groove, 8：Gland, 9：Expansion board, 10：Axle.
3-1、4-1：Axle mounting portion, 3-2,4-2：Spring mechanism.
Embodiment
In the description of the present invention, it is necessary to which explanation, for the noun of locality, if any term, " " center ", " transverse direction ", " indulge
To ", " length ", " width ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ",
The indicating position such as " bottom ", " interior ", " outer ", " clockwise ", " counterclockwise " and position relationship are based on orientation shown in the drawings or position
Relation is put, it is of the invention necessary with simplified description, rather than the device or element of instruction or hint meaning to be for only for ease of narration
Construct and operate with specific orientation, with particular orientation, it is impossible to be interpreted as the specific protection domain of the limitation present invention.
In addition, description purpose is only used for if any term " first ", " second ", and it is not intended that indicating or implying relatively heavy
The property wanted or the implicit quantity for indicating technical characteristic.Thus, " first " is defined, " second " feature can be expressed or implicit include
One or more this feature, in the present description, " at least " are meant that one or more, unless otherwise clearly having
The restriction of body.
In the present invention, except as otherwise clear stipulaties and restriction, should make if any term " assembling ", " connected ", " connection " term
Broad sense is gone to understand, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can also be that machinery connects
Connect；It can be directly connected or be connected by intermediary, can be connected inside two elements.For ability
For the those of ordinary skill of domain, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In invention, unless otherwise prescribed and limit, fisrt feature second feature it " on " or it " under " can include
First and second features directly contact, can also include fisrt feature and second feature not be direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " under " and " above " include fisrt feature the
Directly over two features and oblique upper, or be only to represent that fisrt feature level height is higher than the height of second feature.Fisrt feature
Second feature " on ", " under " and " below " include fisrt feature immediately below second feature or obliquely downward, or only table
Show that fisrt feature level height is less than second feature.
With reference to the attached drawing of specification, by being further described to the embodiment of the present invention, make this hair
Bright technical solution and its advantage is clearer, clear and definite.Embodiment is described below with reference to attached drawing to be exemplary, purport
Explaining the present invention, and be not considered as limiting the invention.
As shown in Figure 1 and Figure 2, a kind of axle fatigue test board, including：Rack 5, first in the rack 5 watches
Take hydraulic cylinder 1, the second servo hydraulic cylinder 2, the first axle support frame 3 and the second axle support frame 4；The first axle support frame
3 and the second axle support frame 4 all have lifting elasticity, the power applied for wheel during simulated driving to axle 10；
First servo hydraulic cylinder 1 and second servo hydraulic cylinder 2 provide a downward pressure to axle 10, for simulating row
The power that load applies to axle 10 during car.
Wherein, crossbeam 6 is equipped with the top of the rack 5, first servo hydraulic cylinder 1, the second servo hydraulic cylinder 2 are pacified
On the crossbeam 6.
The first axle support frame 3, the second axle support frame 4 include axle mounting portion 3-1,4-1 and bullet respectively
Spring mechanism 3-2,4-2, is equipped with axle placing groove 7 on the axle mounting portion, and the corresponding axle placing groove 7 is equipped with gland 8,
It is detected so as to which axle 10 is limited in axle placing groove 7.In the present embodiment, preferably consolidate in the bottom of axle placing groove 7
Surely there is expansion board 9, the spring mechanism includes the spring for being arranged on 9 both ends of expansion board, and installation position of the spring in expansion board 9
Put it is adjustable, so that preferably simulating wheel is supplied to the reaction force of axle 10.
In other embodiments, the relative position between 1 and second servo hydraulic cylinder 2 of the first servo hydraulic cylinder,
And the relative position between the first axle support frame 3 and the second axle support frame 4 is adjustable, so as to different size
Axle carry out testing inspection.
When actually detected, the power of axle is applied to by varying the first servo hydraulic cylinder 1 and/or the second servo hydraulic cylinder 2
Size, so as to reach the power simulated and axle is applied under uneven road conditions.After the size of change power reaches certain number, inspection
Measuring car axis has flawless, phenomenon of rupture to occur, so as to judge axle fatigue life.
A kind of axle fatigue test board provided in this embodiment, by two stress points of axle apply different power come
Reach the stressed effect of equal load.Reached at the same time using the advantages that servo hydraulic cylinder quick response by the fortune of uneven road conditions
Dynamic parameter of learning is acted on axle stress point after servo hydraulic cylinder carries out power amplification, so that by axle on complex road condition
Stressing conditions are completely reproduced by axle fatigue test board, so as to reach the mesh that axle fatigue behaviour is used for quickly detecting
's.
From the foregoing description of structures and principles it should be understood by those skilled in the art that, not office of the invention
It is limited to above-mentioned embodiment, this hair is all fallen within using the improvement and replacement of techniques well known on the basis of the present invention
Bright protection domain, protection scope of the present invention should limit it by each claim and its equivalent.
Claims (9)
- A kind of 1. axle fatigue test board, it is characterised in that including：Rack, the first servo-hydraulic in the rack Cylinder, the second servo hydraulic cylinder, the first axle support frame and the second axle support frame；The first axle support frame and described second Axle support frame all has lifting elasticity, the power applied for wheel during simulated driving to axle；First servo-fluid Cylinder pressure and second servo hydraulic cylinder provide a downward pressure to axle, for load during simulated driving to axle The power of application；During detection, axle is applied to by varying first servo hydraulic cylinder and/or second servo hydraulic cylinder The size of power, the power that load, wheel under uneven road conditions are applied to axle is simulated so as to reach.
- 2. a kind of axle fatigue test board according to claim 1, it is characterised in that be equipped with horizontal stroke at the top of the rack Beam, first servo hydraulic cylinder and second servo hydraulic cylinder are installed on the crossbeam.
- 3. a kind of axle fatigue test board according to claim 1, it is characterised in that the first axle support frame and institute State the second axle support frame includes axle mounting portion and spring mechanism respectively, and the axle mounting portion is used for placing axle, described Spring mechanism is arranged to the axle mounting portion and provides support force.
- 4. a kind of axle fatigue test board according to claim 3, it is characterised in that be equipped with the axle mounting portion Axle placing groove, the corresponding axle placing groove is equipped with gland, so as to which axle is limited in the axle placing groove.
- 5. a kind of axle fatigue test board according to claim 3, it is characterised in that in the bottom of the axle placing groove Expansion board is fixed with, the spring mechanism includes the spring for being arranged on the expansion board both ends.
- 6. a kind of axle fatigue test board according to claim 5, it is characterised in that the spring is in the expansion board Installation site it is adjustable.
- 7. a kind of axle fatigue test board according to claim 1, it is characterised in that first servo hydraulic cylinder and institute The relative position stated between the second servo hydraulic cylinder is adjustable.
- 8. a kind of axle fatigue test board according to claim 1, it is characterised in that the first axle support frame and institute The relative position stated between the second axle support frame is adjustable.
- 9. a kind of axle fatigue test board according to claim 1, it is characterised in that the detection that it is used for Trailer car shaft tries Test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810022450.9A CN107966293A (en) | 2018-01-10 | 2018-01-10 | A kind of axle fatigue test board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810022450.9A CN107966293A (en) | 2018-01-10 | 2018-01-10 | A kind of axle fatigue test board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107966293A true CN107966293A (en) | 2018-04-27 |
Family
ID=61993471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810022450.9A Pending CN107966293A (en) | 2018-01-10 | 2018-01-10 | A kind of axle fatigue test board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107966293A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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2018
- 2018-01-10 CN CN201810022450.9A patent/CN107966293A/en active Pending
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| CN105806617A (en) * | 2016-04-26 | 2016-07-27 | 吉林大学 | Fatigue test table for wheel axles of high speed train |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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