CN108120588A - The fatigue endurance test method of air-brake coupling hose - Google Patents
The fatigue endurance test method of air-brake coupling hose Download PDFInfo
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- CN108120588A CN108120588A CN201611067151.4A CN201611067151A CN108120588A CN 108120588 A CN108120588 A CN 108120588A CN 201611067151 A CN201611067151 A CN 201611067151A CN 108120588 A CN108120588 A CN 108120588A
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- China
- Prior art keywords
- air
- coupling hose
- brake coupling
- test method
- endurance test
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- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a kind of fatigue endurance test method of air-brake coupling hose, the fatigue endurance test method of the air-brake coupling hose includes the following steps：Information gathering gathers the placement information and movable information of air-brake coupling hose to be tested under real vehicle state；Exemplar is installed, and the exemplar of the air-brake coupling hose is fixed on according to the placement information of acquisition on test-bed；Movement simulation, loads the air-brake coupling hose according to the movable information of acquisition, records exercise test data, and judges the exercise endurance of the exemplar of the air-brake coupling hose.The verification efficiency of the present invention is high, and the cycle is short, helps to reduce development cost and the design cycle of air-brake coupling hose.
Description
Technical field
The invention belongs to vehicle testing technical field, in particular to a kind of fatigue endurance test side of air-brake coupling hose
Method.
Background technology
The fatigue durability of the air-brake coupling hose of vehicle has a major impact the braking system of vehicle, in correlation technique, to system
The test of the fatigue durability of dynamic hose is generally drawn by through finished automobile road test, and air-brake coupling hose is changed further according to test result
Design, time-consuming and laborious, efficiency is low, and proving period is long, and there are rooms for improvement.
The content of the invention
It is contemplated that it solves at least some of the technical problems in related technologies.For this purpose, the present invention
One purpose is to propose a kind of fatigue endurance test method of the air-brake coupling hose of high performance cheap.
The fatigue endurance test method of air-brake coupling hose according to embodiments of the present invention, includes the following steps：Information gathering is adopted
Collect the placement information and movable information of air-brake coupling hose to be tested under real vehicle state；Exemplar is installed, by the air-brake coupling hose
Exemplar is fixed on according to the placement information of acquisition on test-bed；Movement simulation, according to the movable information pair of acquisition
The air-brake coupling hose loading, records exercise test data, and judges the exercise endurance of the exemplar of the air-brake coupling hose.
Verification efficiency according to embodiments of the present invention is high, and the cycle is short, helps to reduce the development cost of air-brake coupling hose and set
Count the cycle.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the flow chart of the fatigue endurance test method of air-brake coupling hose according to embodiments of the present invention；
Fig. 2 is the flow of the fatigue endurance test method according to embodiments of the present invention that air-brake coupling hose is connected with deflecting roller
Figure；
Fig. 3 is the fatigue endurance test method flow of air-brake coupling hose according to embodiments of the present invention in a variety of design phases
Figure；
Fig. 4 is the structure diagram of air-brake coupling hose according to embodiments of the present invention；
Fig. 5 is the motion state diagram of the air-brake coupling hose according to embodiments of the present invention being connected with non-steering wheels；
Fig. 6 is the motion state diagram of the air-brake coupling hose according to embodiments of the present invention being connected with deflecting roller；
Fig. 7 is hydraulic loaded oscillogram according to embodiments of the present invention.
Reference numeral：
Air-brake coupling hose 10, fixed end connector 11, tube body 12 move end connector 13.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or has the function of same or like element.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It is combined in an appropriate manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the different embodiments described in this specification or example and different embodiments or exemplary feature
It closes and combines.
The fatigue of the air-brake coupling hose 10 for embodiment that the present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments is resistance to
Long test method.
As Figure 1-Figure 2, the fatigue endurance test method of air-brake coupling hose 10, includes the following steps：Information gathering, acquisition
The placement information and movable information of air-brake coupling hose 10 to be tested under real vehicle state；Exemplar is installed, by the sample of air-brake coupling hose 10
Part is fixed on according to the placement information of acquisition on test-bed；Movement simulation, according to the movable information of acquisition to air-brake coupling hose 10
Loading records exercise test data, and judges the exercise endurance of the exemplar of air-brake coupling hose 10.
It is understood that in each design phase of air-brake coupling hose 10, it can be soft by test-bed simulating brake
The actual motion state of pipe 10.Such as refering to what is shown in Fig. 3, air-brake coupling hose 10 fatigue endurance test method at least can be used for it is following
Three kinds of situations：1) with reference to figure 3 (a), scheme reasonability is verified in the 10 path design phase of air-brake coupling hose, can evade and set
Risk is counted, improves design efficiency；2) with reference to figure 3 (b), 10 comprehensive performance of air-brake coupling hose is carried out in 10 batches of postpartum of air-brake coupling hose true
Recognize, evade quality risk；3) with reference to figure 3 (c), to change after design alteration occurs for 10 path of air-brake coupling hose trend or material etc.
The reasonability of scheme is verified, evades design alteration risk.
The fatigue endurance test method of air-brake coupling hose 10 according to embodiments of the present invention, verification efficiency is high, and the cycle is short, helps
In the development cost and design cycle that reduce air-brake coupling hose 10.
Preferably, Xun Huan hydraulic pressure is kept in step motion simulation, in air-brake coupling hose 10.With reference to figure 7, in air-brake coupling hose 10
Hydraulic pressure can be loaded according to the waveform, with the actual condition of altitude simulation air-brake coupling hose 10.
With reference to figure 1- Fig. 2, before the installation of step exemplar, exemplar is made including step, exemplar can be made by hand, so as to logical
Exemplar is crossed to verify the reasonability of designing scheme.
As shown in figure 4, air-brake coupling hose 10 includes fixed end connector 11, tube body 12 and movement end connector 13, tube body 12 can be with
For rubber tube, tube body 12 is connected between fixed end connector 11 and movement end connector 13, and fixed end connector 11 is fixed with car body to be connected
It connects, for example fixed end connector 11 can be fixed on vehicle body or subframe, movement end connector 13 may be mounted at damper or system
In moving calipers, with vehicle Suspension movement.
Partial brake hose 10 is used to be connected with non-steering wheels, as shown in figure 5, during vehicle traveling, with non-steering
The connected air-brake coupling hose 10 of wheel is including there are three types of typical movement positions altogether.State 110 is upper limit position, and state 111 is vehicle
For wheel without bounce (half cargo condition) position, state 112 is lower limit position.
Partial brake hose 10 is used to be connected with deflecting roller, as shown in fig. 6, during vehicle traveling, with deflecting roller phase
Air-brake coupling hose 10 even includes sharing nine kinds of typical movement positions.State 101 be limes superiors+right-hand rotation extreme position, state 102
For limes superiors+undirected position, state 103 is limes superiors+left-hand rotation extreme position, and state 104 is wheel without dynamic (half cargo condition)+right side
Turn extreme position, state 105 is wheel without dynamic (half cargo condition)+undirected position, state 106 be wheel without dynamic (half cargo condition)+
Right-hand rotation extreme position, state 107 are limit inferior+right-hand rotation extreme position, and state 108 is limit inferior+undirected position, and state 109 is
Limit inferior+left-hand rotation extreme position.
It can be made between upper limit position and lower limit position for the air-brake coupling hose 10 being connected with non-steering wheels
Bounce test, for the air-brake coupling hose 10 that is connected with deflecting roller can to its under some steering position upper limit position and under
Make bounce test between extreme position, it can also be to it under some bounce position for the air-brake coupling hose 10 being connected with deflecting roller
Make slew test between left-hand rotation extreme position and left-hand rotation extreme position.
It should be noted that in exercise test, if the problems such as air-brake coupling hose 10 is without oil leak, crackle, breakage, judges to make
Dynamic hose 10 passes through exercise test.
In some preferred embodiments of the present invention, movable information can include beating information, and beating information includes fortune
The upper limit position and lower limit position that moved end connector 13 is beated under real vehicle state, step motion simulation include bounce simulation,
Step bounce simulation includes drive motion end connector 13 and moves reciprocatingly between upper limit position and lower limit position.
Wherein, in step bounce simulation, when the number of movement end connector 13 reaches predetermined number and braking
When hose 10 does not damage, judge air-brake coupling hose 10 by test of beating, it is necessary to which explanation, movement end connector 13 is by limit inferior position
It puts and moves to upper limit position, return again to lower limit position, referred to as once beat.In step bounce simulation, when movement terminates
First 13 number reaches predetermined number and when air-brake coupling hose 10 does not damage, stops loading.
Further, step bounce simulation include move end connector 13 often beat n1 times check air-brake coupling hose 10, if brake
Hose 10 damages (oil leak, crackle, breakage etc.), stops loading, and records current total number, it is preferable that n1 meets：n1≤
10000。
Specifically, the specific test parameters of simulation of beating may be referred to table 1.
The bounce rack long duration test parameter list of table 1
In some preferred embodiments of the present invention, for connecting deflecting roller, movable information further includes air-brake coupling hose 10
Direction information of the air-brake coupling hose 10 under real vehicle state, step motion simulation further include steering simulation, and step, which turns to simulation, to be included
Air-brake coupling hose 10 is loaded according to direction information, steering test data is recorded, and judges that the steering of the exemplar of air-brake coupling hose 10 is resistance to
Long property.
Direction information can include left-hand rotation extreme position and the right-hand rotation limit that movement end connector 13 turns under real vehicle state
Position, step steering simulation include drive motion end connector 13 and reciprocal fortune are done between left-hand rotation extreme position and right-hand rotation extreme position
Dynamic, specifically, step, which turns to simulation, includes drive motion end connector 13 at the 80% of left-hand rotation extreme position and right-hand rotation limit position
It moves reciprocatingly between 80% put.
Further, step judges that the steering durability of the exemplar of air-brake coupling hose 10 is included in the steering of movement end connector 13
Number reaches predetermined and turns to number and when air-brake coupling hose 10 does not damage, judges that air-brake coupling hose 10 passes through slew test.Turn in step
Into simulation, when the steering number for moving end connector 13 reaches predetermined steering number and air-brake coupling hose 10 does not damage, stop adding
It carries.
Further, step turn to simulation include turn to end connector often turn to n2 time check air-brake coupling hose 10, if brake it is soft
Pipe 10 damages (oil leak, crackle, breakage etc.), stops loading, and records and currently always turn to number.Preferably, n2 meets：n2≤
10000。
Preferably for connection steered wheel air-brake coupling hose 10, air-brake coupling hose 10 exemplar by slew test after,
The exemplar of air-brake coupling hose 10 is simulated into line bounce, only when air-brake coupling hose 10 by slew test and passes through test of beating,
Judge that air-brake coupling hose 10 is qualified, the designing scheme is reasonable.
Specifically, the specific test parameters for turning to simulation may be referred to table 2.
Table 2 turns to rack long duration test parameter list
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be that machinery connects
It connects or is electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
Although the embodiment of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (16)
1. a kind of fatigue endurance test method of air-brake coupling hose, which is characterized in that include the following steps：
Information gathering gathers the placement information and movable information of air-brake coupling hose to be tested under real vehicle state；
Exemplar is installed, and the exemplar of the air-brake coupling hose is fixed on according to the placement information of acquisition on test-bed；
Movement simulation, loads the air-brake coupling hose according to the movable information of acquisition, records exercise test data, and judges
The exercise endurance of the exemplar of the air-brake coupling hose.
2. the fatigue endurance test method of air-brake coupling hose according to claim 1, which is characterized in that the air-brake coupling hose bag
Fixed end connector, tube body and movement end connector are included, the movable information includes beating information, and the beating information includes the fortune
The upper limit position and lower limit position that moved end connector is beated under real vehicle state, the step motion simulation include mould of beating
Intend, the step bounce simulation includes the driving movement end connector between the upper limit position and the lower limit position
It moves reciprocatingly.
3. the fatigue endurance test method of air-brake coupling hose according to claim 2, which is characterized in that beat in the step
In simulation, when the number of the movement end connector reaches predetermined number and the air-brake coupling hose does not damage, judge
The air-brake coupling hose is tested by beating.
4. the fatigue endurance test method of air-brake coupling hose according to claim 3, which is characterized in that beat in the step
In simulation, when the number of the movement end connector reaches predetermined number and the air-brake coupling hose does not damage, stop
Loading.
5. the fatigue endurance test method of air-brake coupling hose according to claim 2, which is characterized in that the step bounce mould
Plan, which includes the movement end connector, often beats n1 time and checks the air-brake coupling hose, if the air-brake coupling hose damages, stopping loads, and
The current total number of record.
6. the fatigue endurance test method of air-brake coupling hose according to claim 5, which is characterized in that meet：n1≤
10000。
7. the fatigue endurance test method of air-brake coupling hose according to claim 2, which is characterized in that the air-brake coupling hose is used
In connection deflecting roller, the movable information further includes direction information of the air-brake coupling hose under real vehicle state, the step fortune
Dynamic model plan further includes steering simulation, and the step, which turns to simulation, to be included loading the air-brake coupling hose according to the direction information,
Steering test data are recorded, and judge the steering durability of the exemplar of the air-brake coupling hose.
8. the fatigue endurance test method of air-brake coupling hose according to claim 7, which is characterized in that the direction information bag
Left-hand rotation extreme position and the right-hand rotation extreme position that the movement end connector turns under real vehicle state are included, the step, which turns to, to be simulated
Including the movement end connector is driven to move reciprocatingly between the left-hand rotation extreme position and the right-hand rotation extreme position.
9. the fatigue endurance test method of air-brake coupling hose according to claim 8, which is characterized in that the step turns to mould
Plan includes the driving movement end connector at the 80% of the left-hand rotation extreme position and at the 80% of the right-hand rotation extreme position
Between move reciprocatingly.
10. the fatigue endurance test method of air-brake coupling hose according to claim 7, which is characterized in that the step judges
The steering number that the steering durability of the exemplar of the air-brake coupling hose is included in the movement end connector reaches predetermined steering number
And the air-brake coupling hose judges that the air-brake coupling hose passes through slew test when not damaging.
11. the fatigue endurance test method of air-brake coupling hose according to claim 10, which is characterized in that turn in the step
Into simulation, when the steering number of the movement end connector reaches predetermined steering number and the air-brake coupling hose does not damage, stop
Only load.
12. the fatigue endurance test method of air-brake coupling hose according to claim 7, which is characterized in that the step turns to
Simulation includes the steering end connector and often turns to the n2 inspection air-brake coupling hose, if the air-brake coupling hose damages, stops loading,
And record current total steering number.
13. the fatigue endurance test method of air-brake coupling hose according to claim 12, which is characterized in that meet：n2≤
10000。
14. the fatigue endurance test method of air-brake coupling hose according to claim 7, which is characterized in that soft in the braking
After the exemplar of pipe is by slew test, the exemplar of the air-brake coupling hose is simulated into line bounce.
15. the fatigue endurance test method of air-brake coupling hose according to claim 1, which is characterized in that transported in the step
Xun Huan hydraulic pressure is kept during dynamic model is intended, in the air-brake coupling hose.
16. the fatigue endurance test method of air-brake coupling hose according to claim 1, which is characterized in that in the step sample
Before part installation, exemplar is made including step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611067151.4A CN108120588A (en) | 2016-11-28 | 2016-11-28 | The fatigue endurance test method of air-brake coupling hose |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611067151.4A CN108120588A (en) | 2016-11-28 | 2016-11-28 | The fatigue endurance test method of air-brake coupling hose |
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| Publication Number | Publication Date |
|---|---|
| CN108120588A true CN108120588A (en) | 2018-06-05 |
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ID=62225103
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|---|---|---|---|
| CN201611067151.4A Pending CN108120588A (en) | 2016-11-28 | 2016-11-28 | The fatigue endurance test method of air-brake coupling hose |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113125171A (en) * | 2021-05-17 | 2021-07-16 | 福州诺贝尔福基机电有限公司 | Brake hose suspension durability test system |
| CN114993692A (en) * | 2022-04-11 | 2022-09-02 | 中国第一汽车股份有限公司 | Brake hose path test bed and test method |
| CN115343054A (en) * | 2022-04-11 | 2022-11-15 | 中国第一汽车股份有限公司 | Method for measuring clearance between automobile brake hose and peripheral parts |
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| CN201266158Y (en) * | 2008-08-26 | 2009-07-01 | 比亚迪股份有限公司 | Test equipment for brake hose weariness durability |
| CN102478471A (en) * | 2010-11-22 | 2012-05-30 | 上海汽车制动系统有限公司 | Method for rapidly testing service life of flexible tube and test bed thereof |
| CN203658184U (en) * | 2014-04-02 | 2014-06-18 | 北京中汽寰宇机动车检验中心有限公司 | Motor vehicle brake hose flexural fatigue tester |
| CN205015214U (en) * | 2015-10-14 | 2016-02-03 | 青岛三祥科技股份有限公司 | Brake hose durability test device |
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2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5908090A (en) * | 1997-02-04 | 1999-06-01 | Earl's Supply Co. | Whip dampener assembly for vehicle brake hose system |
| CN201266158Y (en) * | 2008-08-26 | 2009-07-01 | 比亚迪股份有限公司 | Test equipment for brake hose weariness durability |
| CN102478471A (en) * | 2010-11-22 | 2012-05-30 | 上海汽车制动系统有限公司 | Method for rapidly testing service life of flexible tube and test bed thereof |
| CN203658184U (en) * | 2014-04-02 | 2014-06-18 | 北京中汽寰宇机动车检验中心有限公司 | Motor vehicle brake hose flexural fatigue tester |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113125171A (en) * | 2021-05-17 | 2021-07-16 | 福州诺贝尔福基机电有限公司 | Brake hose suspension durability test system |
| CN114993692A (en) * | 2022-04-11 | 2022-09-02 | 中国第一汽车股份有限公司 | Brake hose path test bed and test method |
| CN115343054A (en) * | 2022-04-11 | 2022-11-15 | 中国第一汽车股份有限公司 | Method for measuring clearance between automobile brake hose and peripheral parts |
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Application publication date: 20180605 |