CN106353112B - High-speed EMUs wheel impact fatigue testing machine - Google Patents
High-speed EMUs wheel impact fatigue testing machine Download PDFInfo
- Publication number
- CN106353112B CN106353112B CN201610733690.0A CN201610733690A CN106353112B CN 106353112 B CN106353112 B CN 106353112B CN 201610733690 A CN201610733690 A CN 201610733690A CN 106353112 B CN106353112 B CN 106353112B
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- China
- Prior art keywords
- pendulum
- connecting rod
- hydraulic cylinder
- workbench
- horizontal
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Classifications
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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
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
- G01M17/10—Suspensions, axles or wheels
-
- 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
- G01N3/34—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by mechanical means, e.g. hammer blows
-
- 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
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
-
- 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
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0039—Hammer or pendulum
-
- 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
Abstract
The invention discloses high-speed EMUs wheel impact fatigue testing machines.Currently without the impact fatigue testing machine specifically for high-speed EMUs wheel.The present invention includes vertical clamp system, horizontal-clamping mechanism, repeated impacts mechanism and workbench；High-speed EMUs wheel is fixed on workbench by vertical clamp system and horizontal-clamping mechanism for clamping high-speed EMUs wheel；Repeated impacts mechanism is for providing shock loading, by impact loading in high-speed EMUs wheel.The present invention can test service life of the high-speed EMUs wheel under repeated impact effect, it utilizes gravitational load impact force, it can guarantee that the height such as pendulum is accommodated when repeated impacts, ensure impact force, impact velocity it is invariable, and required impact force can be realized by exchanging corresponding mass block, it is simple and convenient.
Description
Technical field
The invention belongs to repeated impact test equipment, are able to carry out multiplicating repeated impact test more particularly to one kind
High-speed EMUs wheel impact fatigue testing machine.
Background technique
Train of high-speed motor train unit in the process of moving, can be such that wheel is subjected to due to wheel flat, the low connector of track etc.
Impact loading is repeated several times, its impact fatigue characteristic need to be evaluated.Currently, domestic impact fatigue testing machine does not occur maturation also
Product, in existing fatigue tester and shock machine, fatigue tester can carry out the fatigue test of conventional test specimen, but nothing
Method carries out repeated impact test；And shock machine be then mainly used for single-impact test, emphatically to the impact toughness of material into
Row measurement.Although China's high-speed rail development in recent years is swift and violent, test platform relevant to high-speed rail is suitable shortage.
Summary of the invention
The purpose of the present invention is being directed to the shortage of high-speed EMUs wheel test platform, a kind of high-speed EMUs wheel is provided
Impact fatigue testing machine, the testing machine can effectively clamp high-speed EMUs wheel and be able to carry out repeated impacts using gravitational load
And the impact force kept constant, and effective tune to required impact force size can be realized by different kinds of mass blocks of replacement
It is whole.
The technical solution adopted by the present invention is that:
The present invention includes vertical clamp system, horizontal-clamping mechanism, repeated impacts mechanism and workbench；N horizontal-clamping
Mechanism is uniformly distributed along the circumference, n >=4；The vertical clamp system is by mounting plate, vertical hydraulic cylinder, connector sleeve, V-type connecting rod, company
Fishplate bar, short connecting rod, long connecting rod and hold-down head composition；The mounting plate is fixed on the table；The cylinder of vertical hydraulic cylinder
Body is hinged with mounting plate, and piston rod and the connector sleeve of vertical hydraulic cylinder are connected through a screw thread；One of connector sleeve and V-type connecting rod
Arm top is hinged；Connecting plate welds on a mounting board；The bottom of V-type connecting rod and one end of long connecting rod are cut with scissors with connecting plate
It connects；Another arm top of V-type connecting rod and one end of short connecting rod are hinged；It is cut with scissors in the middle part of the other end of short connecting rod and long connecting rod
It connects；The other end of long connecting rod and hold-down head are hinged.
The horizontal-clamping mechanism is made of clamp jaw, horizontal hydraulic cylinder and hydraulic cylinder mounting base；The clamp jaw
Head is arcwall face；The tail portion of clamp jaw and the piston rod of horizontal hydraulic cylinder are connected through a screw thread；The cylinder body of horizontal hydraulic cylinder is solid
It is scheduled in hydraulic cylinder mounting base；Hydraulic cylinder mounting base is fixed by screws on workbench.
The repeated impacts mechanism includes support frame, motor, small pulley, belt, big belt wheel, bearing spider, shaft, rotation
Turning handle, pendulum shaft stool, oscillating weight axle, pendulum bearing, pendulum, anti-dropout screw, mass block and formed punch；The support frame and electricity
Machine is each attached on workbench；The output shaft of small pulley and motor is affixed, and is connect with big belt wheel by belt；Big belt wheel is affixed
In shaft；Bearing spider is affixed on the support frame；The shaft is supported on bearing spider by bearing；In rotating handle
It is fixed in shaft at the heart；The top of pendulum is supported on oscillating weight axle by pendulum bearing；Impactor is fixed at the top of pendulum；It is anti-
Releasing screw is connect with oscillating weight axle end thread, to pendulum axial limiting；The oscillating weight axle is fixed on pendulum shaft stool, pendulum
It is affixed on the support frame to hammer shaft stool into shape；Oscillating weight axle axle center and rotating shaft core distance are set as a, and the length of rotating handle is set as b, oscillating weight axle
The diameter of axle is set as r, and oscillating weight axle axle center and Impactor outside end distance are set as c, then b/2+r < a < b/2+c；Two pieces of mass blocks are logical
It crosses studs and is symmetrically mounted on pendulum bottom；The formed punch is connected through a screw thread with pendulum bottom.
The workbench is made of the worktable support column of workbench plate and support workbench plate.
Vertical hydraulic cylinder, horizontal hydraulic cylinder and the motor is controlled by controller.
The invention has the benefit that
1, the present invention can test service life of the high-speed EMUs wheel under repeated impact effect；
2, the present invention utilizes gravitational load impact force, can guarantee that the height such as pendulum is accommodated when repeated impacts, it is ensured that impact force,
Impact velocity it is invariable；
3, the present invention can realize required impact force by exchanging corresponding mass block, simple and convenient；
4, rod piece of the invention reduces impact of the impact force to vertical hydraulic cylinder radial direction, especially short connecting rod and V-type
The comprehensive function of connecting rod effectively extends the service life of vertical hydraulic cylinder；
5, the present invention is low in cost, takes up space small, and disassembly is easy, for ease of maintenaince.
Detailed description of the invention
Fig. 1 is a side isometric view of the invention；
Fig. 2 is another side isometric view of the invention；
Fig. 3 is the perspective view of vertical clamp system in the present invention；
Fig. 4 is the schematic diagram of mechanism of vertical clamp system in the present invention；
Fig. 5 is the perspective view of horizontal-clamping mechanism in the present invention；
Fig. 6 is the perspective view of repeated impacts mechanism in the present invention；
Fig. 7 is the partial enlarged view of repeated impacts mechanism in the present invention；
Fig. 8 is the schematic diagram of mechanism of repeated impacts mechanism in the present invention.
In figure: 1, worktable support column, 2, vertical clamp system, 2-1, mounting plate, 2-2, vertical hydraulic cylinder, 2-3, connection
Set, 2-4, V-type connecting rod, 2-5, connecting plate, 2-6, short connecting rod, 2-7, long connecting rod, 2-8, hold-down head, 3, horizontal-clamping machine
Structure, 3-1, clamp jaw, 3-2, horizontal hydraulic cylinder, 3-3, hydraulic cylinder mounting base, 4, high-speed EMUs wheel, 5, repeated impacts machine
Structure, 5-1, support frame, 5-2, motor, 5-3, small pulley, 5-4, belt, 5-5, big belt wheel, 5-6, bearing spider, 5-7, shaft,
5-8, rotating handle, 5-9, pendulum shaft stool, 5-10, oscillating weight axle, 5-11, pendulum bearing, 5-12, pendulum, 5-13, anti-dropout spiral shell
Nail, 5-14, mass block, 5-15, formed punch, 6, workbench plate.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and embodiments.
As illustrated in fig. 1 and 2, high-speed EMUs wheel impact fatigue testing machine, by controller, vertical clamp system 2, level
Clamp system 3, repeated impacts mechanism 5 and workbench composition；Four horizontal-clamping mechanisms 3 are uniformly distributed along the circumference；Workbench is by working
The worktable support column 1 of platform plate 6 and support workbench plate 6 forms.Controller controls the vertical hydraulic of vertical clamp system
The cylinder 2-2 and horizontal hydraulic cylinder 3-2 of horizontal-clamping mechanism movement, thus clamp or release high-speed EMUs wheel 4, and control weight
The motor 5-2 start and stop of multiple beater mechanism 5.
As shown in Figures 3 and 4, vertical clamp system 2 is connected by mounting plate 2-1, vertical hydraulic cylinder 2-2, connector sleeve 2-3, V-type
Bar 2-4, connecting plate 2-5, short connecting rod 2-6, long connecting rod 2-7 and hold-down head 2-8 composition；Mounting plate 2-1 is fixed by screw
On workbench plate 6；The cylinder body and mounting plate 2-1 of vertical hydraulic cylinder 2-2 is hinged, the piston rod of vertical hydraulic cylinder 2-2 and company
Female connector 2-3 is connected through a screw thread；An arm top of connector sleeve 2-3 and V-type connecting rod 2-4 is hinged；Connecting plate 2-5 is welded on peace
On loading board 2-1；The bottom of V-type connecting rod 2-4 and one end of long connecting rod 2-7 are hinged with connecting plate 2-5；V-type connecting rod 2-4
Another arm top and short connecting rod 2-6 one end it is hinged；The other end of short connecting rod 2-6 and the middle part long connecting rod 2-7 are hinged；
The other end and hold-down head 2-8 of long connecting rod 2-7 is hinged.
As shown in figure 5, horizontal-clamping mechanism 3 is by clamp jaw 3-1, horizontal hydraulic cylinder 3-2 and hydraulic cylinder mounting base 3-3 group
At；The head of clamp jaw 3-1 is arcwall face；The tail portion of clamp jaw 3-1 and the piston rod of horizontal hydraulic cylinder 3-2 are connected by screw thread
It connects；The cylinder body of horizontal hydraulic cylinder 3-2 is fixed in hydraulic cylinder mounting base 3-3；Hydraulic cylinder mounting base 3-3 is fixed by screws in work
Make on platform plate 6.
As shown in Fig. 6,7 and 8, repeated impacts mechanism 5 is by support frame 5-1, motor 5-2, small pulley 5-3, belt 5-4, big
Belt wheel 5-5, bearing spider 5-6, shaft 5-7, rotating handle 5-8, pendulum shaft stool 5-9, oscillating weight axle 5-10, pendulum bearing 5-11,
Pendulum 5-12, anti-dropout screw 5-13, mass block 5-14 and formed punch 5-15 composition；Support frame 5-1 and motor 5-2 are each attached to work
Make on platform plate 6；Small pulley 5-3 and the output shaft of motor 5-2 are affixed, and are connect with big belt wheel 5-5 by belt 5-4；Big band
Wheel 5-5 is fixed on shaft 5-7；Bearing spider 5-6 is fixed on support frame 5-1；Shaft 5-7 is supported on bearing branch by bearing
On seat 5-6；It is fixed at the center of rotating handle 5-8 on shaft 5-7；The top of pendulum 5-12 is supported on by pendulum bearing 5-11
On oscillating weight axle 5-10；Impactor is fixed at the top of pendulum 5-12；Anti-dropout screw 5-13 is connect with oscillating weight axle 5-10 end thread,
To pendulum 5-12 axial limiting, prevent pendulum 5-12 from falling off；Oscillating weight axle 5-10 is fixed on pendulum shaft stool 5-9 by screw,
Pendulum shaft stool 5-9 is fixed on support frame 5-1；The axle center oscillating weight axle 5-10 and the axle center shaft 5-7 distance are set as a, rotating handle 5-8
Length be set as b, the oscillating weight axle 5-10 diameter of axle is set as r, and the axle center oscillating weight axle 5-10 and Impactor outside end distance are set as c, then b/2
+ r < a < b/2+c guarantees rotating handle and Impactor outer end Intermittent Contact；Two pieces of mass block 5-14 are symmetrically pacified by studs
Mounted in the bottom pendulum 5-12；Formed punch 5-15 is connected through a screw thread with the bottom pendulum 5-12, and is directed at high-speed EMUs wheel 4.
The working principle of the high-speed EMUs wheel impact fatigue testing machine:
Suitable mass block 5-14 is installed according to the impact force size that test needs first, then by motor train unit
Wheel 4 is placed on workbench plate 6, is then controlled vertical clamp system 2 and horizontal-clamping mechanism 3 by controller, is made vertical
Clamp system 2 and horizontal-clamping mechanism 3 clamp high-speed EMUs wheel 4.Start motor 5-2 by controller, motor 5-2 passes through
Tape handler (small pulley 5-3, belt 5-4 and big belt wheel 5-5) drive shaft 5-7, so that rotating handle 5-8 be driven to revolve clockwise
Turn, when rotating handle 5-8 and Impactor contact, drives pendulum 5-12 to rotate around oscillating weight axle 5-10, when pendulum 5-12 goes to certain height
Degree, rotating handle 5-8 and Impactor are detached from, pendulum 5-12 due to mass block 5-14 gravity and the bottom so that being mounted on pendulum
It hammers the formed punch 5-15 impact high speed EMU wheel 4 on 5-12 into shape, rebounds after formed punch 5-15 impact high speed EMU wheel 4, at this time
The rotating handle 5-8 other end is contacted with Impactor again, and pendulum 5-12 is driven to rotate upwards around oscillating weight axle 5-10, arrives certain height, rotation
Turning handle 5-8 and Impactor are detached from, the pendulum 5-12 bottom, formed punch 5-15 impact high speed EMU wheel 4.Rotating handle 5-8 circulation turns
It is dynamic, formed punch 5-15 just periodic shock high-speed EMUs wheel 4, until high-speed EMUs wheel 4 damages.
Claims (3)
1. high-speed EMUs wheel impact fatigue testing machine, including vertical clamp system, horizontal-clamping mechanism, repeated impacts mechanism
And workbench, it is characterised in that: n horizontal-clamping mechanism is uniformly distributed along the circumference, n >=4；The vertical clamp system is by installing
Plate, vertical hydraulic cylinder, connector sleeve, V-type connecting rod, connecting plate, short connecting rod, long connecting rod and hold-down head composition；The peace
Loading board is fixed on the table；The cylinder body of vertical hydraulic cylinder and mounting plate are hinged, and the piston rod and connector sleeve of vertical hydraulic cylinder are logical
Cross threaded connection；Connector sleeve and an arm top of V-type connecting rod are hinged；Connecting plate welds on a mounting board；V-type connecting rod
Bottom and one end of long connecting rod are hinged with connecting plate；Another arm top of V-type connecting rod and one end of short connecting rod are hinged；
It is hinged in the middle part of the other end of short connecting rod and long connecting rod；The other end of long connecting rod and hold-down head are hinged；
The horizontal-clamping mechanism is made of clamp jaw, horizontal hydraulic cylinder and hydraulic cylinder mounting base；The head of the clamp jaw
For arcwall face；The tail portion of clamp jaw and the piston rod of horizontal hydraulic cylinder are connected through a screw thread；The cylinder body of horizontal hydraulic cylinder is fixed on
In hydraulic cylinder mounting base；Hydraulic cylinder mounting base is fixed by screws on workbench；
The repeated impacts mechanism includes support frame, motor, small pulley, belt, big belt wheel, bearing spider, shaft, rotation
Handle, pendulum shaft stool, oscillating weight axle, pendulum bearing, pendulum, anti-dropout screw, mass block and formed punch；The support frame and motor
It is each attached on workbench；The output shaft of small pulley and motor is affixed, and is connect with big belt wheel by belt；Big belt wheel is fixed in
In shaft；Bearing spider is affixed on the support frame；The shaft is supported on bearing spider by bearing；The center of rotating handle
Place is fixed in shaft；The top of pendulum is supported on oscillating weight axle by pendulum bearing；Impactor is fixed at the top of pendulum；Anticreep
It falls screw to connect with oscillating weight axle end thread, to pendulum axial limiting；The oscillating weight axle is fixed on pendulum shaft stool, pendulum
Shaft stool is affixed on the support frame；Oscillating weight axle axle center and rotating shaft core distance are set as a, and the length of rotating handle is set as b, oscillating weight axle axis
Diameter is set as r, and oscillating weight axle axle center and Impactor outside end distance are set as c, then b/2+r < a < b/2+c；Two pieces of mass blocks pass through
Studs is symmetrically mounted on pendulum bottom；The formed punch is connected through a screw thread with pendulum bottom.
2. high-speed EMUs wheel impact fatigue testing machine according to claim 1, it is characterised in that: the workbench
It is made of the worktable support column of workbench plate and support workbench plate.
3. high-speed EMUs wheel impact fatigue testing machine according to claim 1, it is characterised in that: the vertical liquid
Cylinder pressure, horizontal hydraulic cylinder and motor are controlled by controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610733690.0A CN106353112B (en) | 2016-08-25 | 2016-08-25 | High-speed EMUs wheel impact fatigue testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610733690.0A CN106353112B (en) | 2016-08-25 | 2016-08-25 | High-speed EMUs wheel impact fatigue testing machine |
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| Publication Number | Publication Date |
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| CN106353112A CN106353112A (en) | 2017-01-25 |
| CN106353112B true CN106353112B (en) | 2019-01-15 |
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| CN201610733690.0A Active CN106353112B (en) | 2016-08-25 | 2016-08-25 | High-speed EMUs wheel impact fatigue testing machine |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167386B (en) * | 2017-07-21 | 2023-03-31 | 西安建筑科技大学 | Vertical load loading device and loading method for structural member |
| CN110553859B (en) * | 2018-05-31 | 2024-02-27 | 湖南工业大学 | Shock resistance and fatigue experiment device for barrier remover for train |
| CN116519252B (en) * | 2023-06-08 | 2024-01-23 | 扬州晶明科技有限公司 | Impact test device for aircraft component |
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| CN103878518A (en) * | 2012-12-19 | 2014-06-25 | 北汽福田汽车股份有限公司 | Locking device |
| CN205138915U (en) * | 2015-11-16 | 2016-04-06 | 浙江理工大学 | Charpy impact fatigue testing machine |
| CN206114315U (en) * | 2016-08-25 | 2017-04-19 | 浙江理工大学 | High -speed EMUs wheel impact fatigue testing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2874894B2 (en) * | 1989-05-24 | 1999-03-24 | トピー工業株式会社 | Composite strength testing equipment for wheels with tires |
| KR20060041329A (en) * | 2004-11-08 | 2006-05-11 | 한국타이어 주식회사 | Impact resistance force measuring apparatus of tire sidewall |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3620638A1 (en) * | 1986-06-20 | 1987-12-23 | Timofej Ivanovic Selomencev | Method for determining the technical state of a pneumatic tyre |
| CN1710395A (en) * | 2004-06-16 | 2005-12-21 | 韩国轮胎株式会社 | Tyre side-wall impact test device |
| CN202501971U (en) * | 2012-04-01 | 2012-10-24 | 昆山市创新科技检测仪器有限公司 | Tire impact testing machine |
| CN202655831U (en) * | 2012-06-06 | 2013-01-09 | 中国长安汽车集团股份有限公司四川建安车桥分公司 | Pressing device |
| CN202974612U (en) * | 2012-07-11 | 2013-06-05 | 佛山市南海锐新铝轮装备有限公司 | Passenger car wheel impact performance test machine with hydraulic lifting counterweight |
| CN103878518A (en) * | 2012-12-19 | 2014-06-25 | 北汽福田汽车股份有限公司 | Locking device |
| CN205138915U (en) * | 2015-11-16 | 2016-04-06 | 浙江理工大学 | Charpy impact fatigue testing machine |
| CN206114315U (en) * | 2016-08-25 | 2017-04-19 | 浙江理工大学 | High -speed EMUs wheel impact fatigue testing machine |
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| CN106353112A (en) | 2017-01-25 |
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Application publication date: 20170125 Assignee: ZHEJIANG SCI-TECH UNIVERSITY SHANGYU INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. Assignor: Zhejiang University of Technology Contract record no.: X2020330000077 Denomination of invention: High speed EMU wheel impact fatigue testing machine Granted publication date: 20190115 License type: Common License Record date: 20201022 |