CN108593441A - Linear motion type accelerating and loading test instrument - Google Patents
Linear motion type accelerating and loading test instrument Download PDFInfo
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- CN108593441A CN108593441A CN201810582528.2A CN201810582528A CN108593441A CN 108593441 A CN108593441 A CN 108593441A CN 201810582528 A CN201810582528 A CN 201810582528A CN 108593441 A CN108593441 A CN 108593441A
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- tire
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- 238000012360 testing method Methods 0.000 title claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000008676 import Effects 0.000 abstract description 3
- 238000004088 simulation Methods 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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- 238000012827 research and development Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive 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
- G01N3/56—Investigating resistance to wear or abrasion
-
- 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
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- 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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- 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)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Tires In General (AREA)
Abstract
The present invention relates to a kind of linear motion type accelerating and loading test instrument, including carriage, litter, horizontal movement link, tire, load connecting rod, pouring weight, restricted spring, reaction frame, cable.The present invention can motion state of the simulated automotive tire on road surface when driving, repeat to apply vertical load and horizontal loading, and controllable load, horizontal movement speed, pavement temperature and dry and wet environment by the linear motion road pavement of tire.The configuration of the present invention is simple is run with the transverse movement simulating vehicle of tire；Low cost, under the premise of realizing identical even more functions, cost is substantially compressed compared to import equipment；Tire horizontal displacement distance is controllable, and the load time is controllable, can the perfect simulation true load environment of tire；Intelligent control, load is convenient and can realize that various modes load, and has prevented frequent starting and braking；Energy transformation ratio is high, and noise is small；Maintenance cost is low, and service life is high.
Description
Technical field
The present invention relates to it is a kind of can motion state of the simulated automotive tire on road surface when driving, pass through the straight of tire
Line moves road pavement and repeats to apply vertical load and horizontal loading, and controllable load, horizontal movement speed, road surface temperature
The actual road test detection device of degree and dry and wet environment.
Background technology
It, can not using traditional laboratory test instrument research ground surface material and structural behaviour there is certain limitation
Accomplish to be consistent with the actual loading situation on road surface.In recent years, large quantities of new large scale equipments are developed, such as road surface
Accelerating and loading test system, MTS testing machines, UTM testing machines etc., wherein road-surface accelerating and loading test system are most top roads
Road test apparatus, it can apply the section of normal construction the wheel load of emulation, and apply full size by repeatedly road pavement structure
Mobile wheel load carry out the rapid performance for judging road surface.
The only a few countries such as South Africa, the U.S., Australia develop road-surface accelerating and loading test system in world wide at present
It unites and sells, it is domestic not yet to find to produce and sell road-surface accelerating and loading test equipment.Since import equipment is expensive, supply
The reasons such as goods period length, the domestic road-surface accelerating and loading test number of devices bought is few, price is high, compares typically traffic
The ALF type road-surface accelerating and loading test equipment of Science Institute of portion nineteen ninety purchase, Tongji University's purchase in 2010
MLS66 type road-surface accelerating and loading test systems and 1/3 full size road surface accelerated loading system MMLS, Chang An University buy for 2010
Road-surface accelerating and loading test system HVS.
Existing device disadvantage：
1, it involves great expense, the nonproductive current prices of MLS in south are in 20,000,000 or so, MMLS also at 1,000,000 yuan or more；
2, partially complicated in design, start braking frequently, load mode existing defects, such as Americanized HVS；
3, the part accelerated loading equipment load intermittent time is short, is not inconsistent with the real road convoy spacing time, cannot be true
Ground reproduces road vehicle running environment, causes research structure and practical road surface operation conditions consistency poor, and such as south is nonproductive
Impact noise is big in MLS and MMLS accelerated loading equipment running process, high energy consumption, and operating cost increases, and impact it is larger,
So that equipment wheel-rail wear and tear is serious, service life of equipment is reduced；
4, the equipment electrical cable service life is low, needs to be replaced frequently cable, and plant maintenance is inconvenient, as ALF power cables are rolled over
It is curved frequent, serious wear.
The road surfaces the ALF accelerated loading equipment that Australia develops, the test section using uniaxial driving wheel in 12m long are enterprising
The unidirectional load of row, loading velocity 20km/h, axle load 40-80KN.But equipment is used with reloading, and it is inconvenient to adjust, and causes
Motion loading part inertia is big, and impact is serious, and efficiency is low.
The road surfaces the MLS accelerated loading equipment that South Africa is developed, 4 (or 6) loading wheels are in an approximate frame rail for mending circle
Circular flow on road is loaded, loading velocity 0-26km/h, axle load 0-150KN using circulating driven wheel.Equipment load effect
Rate is high, but the load intermittent time is less than real road convoy spacing time, and complicated in mechanical structure, high failure rate, repair
Maintenance cost is high, and impact noise is big, and electrical efficiency is low, and input electric power is up to 140KW, wherein 70KW fevers, therefore the equipment must
The cooling system of a set of complexity must be increased.
The 1/3 full size accelerating and loading test equipment MMLS that South Africa is developed is mainly used in laboratory road pavement sample and carries out
Comparative tests.It is loaded using circulating driven wheel, loading velocity 0-26km/h, axle load 0-2.5KN.System loads frequency
Height, but load load is small and adjustment is complicated, and high failure rate, impact noise is big, and especially grounding pressure does not meet road surface reality.
South Africa is developed, the road surfaces HVS accelerated loading produced in USA is equipped, and is loaded using two-way driving wheel, and loading velocity is
14km/h, 20~100KN of axle load.But equipment needs frequent starting, braking, and loading velocity is low, and moves back and forth load, cannot
The loaded condition of true reappearance haulage vehicle road pavement.
It is carried for current solid axle, breaking of pitch surface in early stage is serious under heavy traffic and extreme climate environmental condition and makes
With the present situation that the service life is shorter, in conjunction with the investigation of domestic and international Zhejiang blueness pavement usage situation and road-surface accelerating and loading test equipment, this is specially
Profit devises the reduced scale road-surface accelerating and loading test system with independent intellectual property right on the basis of using for reference absorption Advanced Idea
System.
Invention content
Present invention aim to address the present situation that the current country can not produce road surface loading system, design research and development principle letters
Road surface accelerated loading system that is single practical, easy to use, multiple functional, cheap and meeting vehicle real running environment.
China's Current Specification of Asphalt Pavement Design is using trucies such as the Yellow River, liberation as standard vehicle at present, standard vehicle road pavement
Using uniaxial two-wheel group form, tire has ground contact to be assumed to be circle, 1.5 δ of two-wheeled centre-to-centre spacing=0.3195m, road for load
Area load contact surface is defined as circle, equivalent diameter of a circle d=0.213m, standard axle load 100KN, tire pressure 0.7MPa.
It examines ground surface material and when structural behaviour, need to only describe vehicle rear wheel wheel group or when trailing wheel single-wheel passes through road surface
State, actually tire are solely subjected to tangential friction force and vertical load when driving on road surface.
When this instrument is designed, the vertical load for applying certain numerical value to tire need to be only ensured, and keep it along road surface
The load is constant when tangential motion, and specific equipment is：(1) tangential motion device；(2) vertical loading device；(3)
Temperature regulating device；(4) wet device is controlled.
Description of the drawings
Fig. 1 invents institute's use device structural schematic diagram.
In Fig. 1, A- carriages；B- litter；C- horizontal movement links；D- tires；E- loads connecting rod；F- pouring weights；G- is about
Beam spring；H- reaction frames；I- cables
Specific implementation mode
A kind of linear motion type accelerating and loading test instrument, agent structure include carriage, litter, horizontal movement link,
Tire, load connecting rod, pouring weight, restricted spring, counter-force, cable.
As shown in Figure 1, (1) A can be slided up and down along B, C can be dynamic around the shaft rotation on A, is slided on B by electric drive A,
So that the angle of C and B generates variation, D horizontal movements are driven；(2) D is loaded by H and G；(3) D is in horizontal movement
Load, movement of the simulation tire on road surface are realized simultaneously.
Function may be implemented in the present apparatus：
1, when tire moves to the left, apply vertical load, when being moved to the right by left side, may choose whether to apply perpendicular
To load；
2, pass through litter and restricted spring control wheel tyre bead road surface transverse direction facile motion；
3, tire movement speed is controlled by console；
4, loading force size is controlled by console (reaction frame load).
Advantage of the present invention, it is simple in structure, it is run with the transverse movement simulating vehicle of tire；Low cost is identical very in realization
Under the premise of more multi-functional, cost is substantially compressed compared to import equipment；Tire horizontal displacement distance is controllable, and the load time can
Control, can the perfect simulation true load environment of tire；Intelligent control, load is convenient and can realize that various modes load, and has prevented frequency
Numerous startup and braking；Energy transformation ratio is high, and noise is small；Maintenance cost is low, and service life is high.
Claims (4)
1. a kind of linear motion type accelerating and loading test instrument, which is characterized in that including carriage, litter, horizontal movement link,
Tire, load connecting rod, pouring weight, restricted spring, reaction frame, cable.
2. model equipment according to claim 1, it is characterised in that：Carriage can be slided up and down along litter, level fortune
Dynamic connecting rod can be dynamic around the shaft rotation on carriage, is slided on litter by electric drive carriage so that horizontal movement connects
The angle of bar and litter generates variation, drives tire horizontal movement.
3. model equipment according to claim 1, it is characterised in that：Tire can be added by restricted spring and reaction frame
It carries.
4. according to model equipment described in claim 1 is sought, it is characterised in that：Tire realizes load while horizontal movement,
Simulate movement of the tire on road surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810582528.2A CN108593441A (en) | 2018-06-07 | 2018-06-07 | Linear motion type accelerating and loading test instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810582528.2A CN108593441A (en) | 2018-06-07 | 2018-06-07 | Linear motion type accelerating and loading test instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108593441A true CN108593441A (en) | 2018-09-28 |
Family
ID=63623240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810582528.2A Pending CN108593441A (en) | 2018-06-07 | 2018-06-07 | Linear motion type accelerating and loading test instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448529A (en) * | 2018-12-12 | 2019-03-08 | 桂林理工大学 | Multi-state road surface accelerated loading teaching test instrument |
| US20210322989A1 (en) * | 2018-09-04 | 2021-10-21 | Shandong Jiaotong University | Constant temperature circular accelerated loading test system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11173972A (en) * | 1997-12-15 | 1999-07-02 | Yorimasa Abe | Simulated deformation formation apparatus for paved road surface |
| CN2788174Y (en) * | 2005-04-11 | 2006-06-14 | 长安大学 | Pitch mixed material accelerating and loading tester |
| CA2769588A1 (en) * | 2009-08-10 | 2011-02-17 | Shandong Jiaotong University | Floating mechanism loading vehicle provided with double shafts and eight wheels for pavement accelerated loading test |
| CN203443862U (en) * | 2013-09-09 | 2014-02-19 | 北京市政路桥建材集团有限公司 | Bituminous pavement acceleration loading testing machine |
| CN104101552A (en) * | 2014-07-09 | 2014-10-15 | 南京信息工程大学 | Accelerated loading abrasion device for pavement |
| CN105806576A (en) * | 2016-04-29 | 2016-07-27 | 兰州交通大学 | Wheel-rail relation simulation fatigue test device and method |
-
2018
- 2018-06-07 CN CN201810582528.2A patent/CN108593441A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11173972A (en) * | 1997-12-15 | 1999-07-02 | Yorimasa Abe | Simulated deformation formation apparatus for paved road surface |
| CN2788174Y (en) * | 2005-04-11 | 2006-06-14 | 长安大学 | Pitch mixed material accelerating and loading tester |
| CA2769588A1 (en) * | 2009-08-10 | 2011-02-17 | Shandong Jiaotong University | Floating mechanism loading vehicle provided with double shafts and eight wheels for pavement accelerated loading test |
| CN203443862U (en) * | 2013-09-09 | 2014-02-19 | 北京市政路桥建材集团有限公司 | Bituminous pavement acceleration loading testing machine |
| CN104101552A (en) * | 2014-07-09 | 2014-10-15 | 南京信息工程大学 | Accelerated loading abrasion device for pavement |
| CN105806576A (en) * | 2016-04-29 | 2016-07-27 | 兰州交通大学 | Wheel-rail relation simulation fatigue test device and method |
Non-Patent Citations (1)
| Title |
|---|
| 郭景嘉: "机构和机械控制装置", 中国农业机械出版社, pages: 85 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210322989A1 (en) * | 2018-09-04 | 2021-10-21 | Shandong Jiaotong University | Constant temperature circular accelerated loading test system |
| CN109448529A (en) * | 2018-12-12 | 2019-03-08 | 桂林理工大学 | Multi-state road surface accelerated loading teaching test instrument |
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Application publication date: 20180928 |
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