CN110186799A - Pantograph pan current-carrying frictional wear experiment machine and application method - Google Patents
Pantograph pan current-carrying frictional wear experiment machine and application method Download PDFInfo
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- CN110186799A CN110186799A CN201910520589.0A CN201910520589A CN110186799A CN 110186799 A CN110186799 A CN 110186799A CN 201910520589 A CN201910520589 A CN 201910520589A CN 110186799 A CN110186799 A CN 110186799A
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- slide plate
- frame
- control device
- contact line
- installation frame
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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
-
- 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
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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
- G01N2203/0001—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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0244—Tests performed "in situ" or after "in situ" use
- G01N2203/0246—Special simulation of "in situ" conditions, scale models or dummies
-
- 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
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
Abstract
The application discloses pantograph pan current-carrying frictional wear experiment machine and application method, is related to mechanical device technical field, and contact line mounting structure therein includes rotating circular disk, the first driving motor, contact line, raised points；Contact line and raised points rotate under the driving of the first driving motor with rotating circular disk；Pantograph pan mounting structure includes slide plate, installation frame, swing frame, total frame, first movement control device, oscillating control device, the second mobile controller, pressure control device；Installation frame applies pressure to slide plate, changes the contact pressure between slide plate and contact line or raised points；Slide plate is swung under the driving of oscillating control device, is horizontally moved under the driving of first movement control device relative to rotating circular disk, carries out vertical shift relative to rotating circular disk under the driving of the second mobile controller.In this way, creation and the close Service Environment of Pantograph-OCS system, it can analog mechanical impact and the slide plate damage mechanisms under thermal shock coupling.
Description
Technical field
This application involves mechanical device technical fields, specifically, being related to a kind of pantograph pan current-carrying frictional wear examination
Test machine and application method.
Background technique
Pantograph pan and contact line constitute a pair of mechanical special friction pair with electrical couplings.When train high-speed cruising
When, big current-carrier friction pairs fever is obvious, arc discharge when especially bow net separates, and very big thermal energy release is instantaneously concentrated, caused
The pair that rubs contact site seriously damages, and deteriorates surface of friction pair operating condition, and current carrying quality is deteriorated, and influences the traction power supply of train
Performance is likely to result in major accident when serious.
Currently, China's track transportation industry pantograph localization rate of parts and components is lower, the slide plate as pantograph critical component is also more
Import is relied on always over year, especially in high-speed rail field.According to the principle and correlative study of protection contact net, pantograph is main
The source of trouble, major failure position are slide plates, account for the 62.5% of failure total amount, and primary every about 60,000-8 ten thousand kilometers of replacements,
Actual life is far below its design value, so that remote super newly increased requirement of upgrading demand.Show to be greater than 240km/ when speed there are also statistics
When h, slide plate, which wears the milimeter number that every millimeter can run, be will be greatly reduced, and with the raising of train speed, bow net divides repeatedly
Increase from caused arc event.Therefore, when train high-speed cruising, slide plate caused by mechanical shock and thermal shock coupling
Damage decides that can pantograph be stablized and safely takes stream from contact net.
It in terms of current-carrying slide plate abrasion tester, has developed more, has mainly there is ring-block formula, pin-disc type and line-slide block type
Three categories.In these testing machines, part test machine is driven by counterweight load, lever, hydraulic loading device, electric cylinder or electromagnetism
Dynamic cylinder, simulates contact pressure between bow net.The above contact pressure is invariable or to apply the device of contact pressure more complex, and all
Contact net hard spot shock problem is not accounted for.Due to design (such as: joint), material, route and maintenance, formed
Contact net hard spot.The presence of hard spot can accelerate slide plate abnormal wear and impact damage, cause bow net " offline ", cause slide plate with
The electric arc burn of contact line, destruction are normally flowed, and may induce pantograph and catenary fault when serious, are become evaluation and are measured high-speed electrified
One important parameter of railway pantograph contact line relation is also always the chronic disease for influencing rail traction power supply pantograph-catenary current collection quality.Therefore, it grinds
The current-carrying slide plate friction wear testing machine that the variation of bow net contact pressure cycle, hard spot periodicity or randomness processed are impacted, creation
With the closer Service Environment of actual operating mode, and research mechanical shock and thermal shock are to the indispensable item of slide plate coupling
Part.With the raising of train running speed, Pantograph-OCS system Service Environment is more severe, and the existing experimental study about slide plate is not
It is able to satisfy demand, is needed by the experimental facilities close with actual operating mode, the big current-carrying slide plate of high speed is deeply systematically carried out
Micromechanism of damage research, thus probe into reduce slide plate abrasion method.
Summary of the invention
In view of this, this application provides a kind of pantograph pan current-carrying frictional wear experiment machine and application method, creation
The close Service Environment with Pantograph-OCS system actual motion, being capable of analog mechanical impact and the slide plate damage under thermal shock coupling
Mechanism.
In order to solve the above-mentioned technical problem, the application has following technical solution:
In a first aspect, the application provides a kind of pantograph pan current-carrying frictional wear experiment machine characterized by comprising
Contact line mounting structure and pantograph pan mounting structure；
The contact line mounting structure, comprising: rotating circular disk, the first driving motor being electrically connected with the rotating circular disk,
At least one raised points for being wrapped in the contact line of the rotating circular disk periphery and being fixed in the contact line；It is described to connect
Line and the raised points are touched under the driving of first driving motor as the rotating circular disk rotates；
The pantograph pan mounting structure includes: slide plate, installation frame, swing frame, total frame, first movement control
Device, oscillating control device, the second mobile controller, pressure control device；Wherein, the slide plate is fixed on the installing frame
On frame and with the contact line or the raised point contact；The installation frame and the pressure control device are individually fixed in institute
It states on swing frame, the pressure control device is located at side of the installation frame far from the rotating circular disk, the pressure
Control device is used to change the slide plate and the contact line or described to slide plate application pressure by the installation frame
Contact pressure between raised points；The swing frame is fixed on total frame；The oscillating control device is for controlling
The swing frame is swung, and the first movement control device and second mobile controller connect with total frame respectively
It connects；
The swing frame, the installation frame and the slide plate as a whole, in the driving of the oscillating control device
Under swung；Total frame, the swing frame, the installation frame and the slide plate as a whole, described first
It is horizontally moved under the driving of mobile controller relative to the rotating circular disk；Total frame, the swing frame, institute
Installation frame and the slide plate are stated as a whole, relative to the rotating circular disk under the driving of second mobile controller
Carry out vertical shift.
Optionally, in which:
The pressure control device includes cam and the cam motor that connect with the cam, the cam and the installation
Contact therewith；The cam motor drives the cam to carry out eccentric motion, the eccentric motion of the cam be the slide plate and
The contact line applies periodically variable pressing force.
Optionally, in which:
It further include the first sliding rail on the swing frame, first sliding rail is slidably connected with the installation frame；Work as institute
It states cam and applies pressure to the installation frame, when the slide plate is pressed to the contact line, the installation frame is along described the
One sliding rail moves horizontally.
Optionally, in which:
Total frame further includes the first connector, and the swing frame is fixed on institute by first connector rotation
It states on total frame.
Optionally, in which:
The oscillating control device is located on total frame, including the first electromagnet and the second electromagnet, and described first
Electromagnet and second electromagnet are individually fixed in the two sides of first connector；
When not needing the raised points and hitting the slide plate, first electromagnet and the second electromagnet timesharing to
The swing frame applies electromagnetic attraction, swings the swing frame, the installation frame and the slide plate.
Optionally, in which:
The first movement control device includes horizontal slide rail, horizontal screw lead corresponding with the horizontal slide rail, Yi Jiyu
The horizontal screw lead connection moves horizontally driving motor, and the horizontal slide rail is slidably connected with total frame；In the water
Under the driving for translating dynamic driving motor, total frame is moved horizontally along the horizontal slide rail.
Optionally, in which:
Second mobile controller includes upright slide rail, vertical lead screw corresponding with the upright slide rail, Yi Jiyu
The vertical shift elevator of the vertical lead screw connection, the upright slide rail are slidably connected with total frame；Described vertical
Under the driving of mobile lift, total frame is along the upright slide rail vertical shift.
Second aspect, the application also provide a kind of application method of above-mentioned pantograph pan current-carrying frictional wear experiment machine,
It is characterised by comprising:
Start the first driving motor, makes rotating circular disk that contact line and raised points be driven at the uniform velocity to rotate；
Start pressure control device, make pressure control device to slide plate installation frame provide pressure, constantly change slide plate with
Contact pressure between contact line；
Start the second mobile controller, makes total frame, swing frame, installation frame and slide plate as a whole, relative to
The rotating circular disk carries out vertical shift, the zigzag relative motion between simulating contact line and slide plate；
When not needing raised points shock slide plate, starts slide plate pendulous device, swing frame is driven by oscillating control device
Frame is swung；
When needing raised points to hit slide plate, slide plate pendulous device is closed, contacts raised points with slide plate；When raised points with
When slide plate contacts, slide plate and slide plate installation frame are slided to the direction far from rotating circular disk together, and raised points is made to pass through slide plate.
Optionally, in which:
The pressure control device includes cam and the cam motor that connect with the cam, the cam and the installation
Contact therewith；
Start pressure control device, make pressure control device to slide plate installation frame provide pressure, constantly change slide plate with
Contact pressure between contact line, specifically:
Starting cam motor, it is constantly the slide plate and institute that cam, which at the uniform velocity rotates progress eccentric motion using accentric support,
It states contact line and applies periodically variable pressing force.
Compared with prior art, pantograph pan current-carrying frictional wear experiment machine described herein and application method, reach
Arrive following effect:
(1) in pantograph pan current-carrying frictional wear experiment machine provided by the present application and application method, testing machine structure cloth
Compact, high reliablity is set, installation and maintenance are convenient；Whole to use horizontal type structure layout, roomy base, center of gravity is low, runs smoothly；
Movement and the motion guide of total frame are realized by motor-driven nut screw mechanism and sliding rail, and are realized by sliding rail
The motion guide of installation frame, not only structure was simple, safe and reliable, but also can satisfy accuracy requirement；Both may be used between each movement mechanism
Self-movement, and control joint coordination movement can be passed through；Control is flexible, easy.
(2) in pantograph pan current-carrying frictional wear experiment machine provided by the present application and application method, pass through total frame
Horizontal movement and the horizontal movement of installation frame, effective combination of the entirety of cam rotation and part, complete contact line and slide plate
Between periodically variable contact pressure apply, load to automatic steady, unload, be continuously adjusted in a certain range, structure letter
Single, Yi Shixian is easy to control, and safe and reliable.
(3) combination for passing through swing frame and oscillating control device realizes contact line hard spot (i.e. raised points) to cunning
The periodicity or randomness hard spot of plate are impacted, and features simple structure is easy, and control is simple, while can both be effectively prevented from contact line rotation
Disk diameter it is excessive (as long as rotating circular disk revolving speed 60v/ (π d) < magnet highest be attracted frequency, d be rotating circular disk diameter,
V is train speed), but be able to achieve such as over long distances across at mid-span caused by periodicity hard spot impact.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
A kind of structure that Fig. 1 show pantograph pan current-carrying frictional wear experiment machine provided by the embodiment of the present application is shown
It is intended to；
A kind of part that Fig. 2 show pantograph pan current-carrying frictional wear experiment machine provided by the embodiment of the present application is main
View；
Fig. 3 show a kind of fragmentary top of pantograph pan current-carrying frictional wear experiment machine provided by the embodiment of the present application
View；
Fig. 4 show a kind of stream of the application method of pantograph pan current-carrying frictional wear experiment machine provided herein
Cheng Tu.
Specific embodiment
As used some vocabulary to censure specific components in the specification and claims.Those skilled in the art answer
It is understood that hardware manufacturer may call the same component with different nouns.This specification and claims are not with name
Mode of the difference of title as differentiation component, but using the difference of component functionally as the criterion distinguished.Such as said in the whole text
The "comprising" of bright book and claim mentioned in is an open language, therefore should be construed to " including but not limited to ".It is " big
Cause " refer within the acceptable error range, those skilled in the art can solve the technology within a certain error range and ask
Topic, basically reaches the technical effect.Specification subsequent descriptions are to implement the better embodiment of the application, and so description is
For the purpose of the rule for illustrating the application, it is not intended to limit the scope of the present application.The protection scope of the application is when view institute
Subject to attached as defined in claim.
It in terms of current-carrying slide plate abrasion tester, has developed more, has mainly there is ring-block formula, pin-disc type and line-slide block type
Three categories.In these testing machines, part test machine is driven by counterweight load, lever, hydraulic loading device, electric cylinder or electromagnetism
Dynamic cylinder, simulates contact pressure between bow net.The above contact pressure is invariable or to apply the device of contact force more complex, and does not all have
Have and considers contact net hard spot shock problem.Due to design (such as: joint), material, route and maintenance, formation is connect
Net-fault hard spot.The presence of hard spot can accelerate slide plate abnormal wear and impact damage, cause bow net " offline ", cause slide plate and connect
The electric arc burn of line is touched, destruction is normally flowed, and may induce pantograph and catenary fault when serious, is become evaluation and is measured high-speed electrified iron
One important parameter of road pantograph contact line relation is also always the chronic disease for influencing rail traction power supply pantograph-catenary current collection quality.Therefore, it develops
The current-carrying slide plate abrasion tester of the variation of bow net contact pressure cycle, hard spot periodicity or randomness impact, creation and reality
The closer Service Environment of operating condition, and mechanical shock and thermal shock are studied to the necessary condition of slide plate coupling.With
The raising of train running speed, Pantograph-OCS system Service Environment is more severe, and the existing experimental study about slide plate cannot expire
Sufficient demand needs deeply systematically to carry out the damage of the big current-carrying slide plate of high speed by the experimental facilities close with actual operating mode
Hurt mechanism study, to probe into the method for reducing slide plate abrasion.
In view of this, this application provides a kind of pantograph pan current-carrying frictional wear experiment machine and application method, creation
The close Service Environment with Pantograph-OCS system actual motion, being capable of analog mechanical impact and the slide plate damage under thermal shock coupling
Mechanism.
It is described in detail below with reference to the drawings and specific embodiments.
A kind of structure that Fig. 1 show pantograph pan current-carrying frictional wear experiment machine provided by the embodiment of the present application is shown
It is intended to, Fig. 2 show a kind of local main view of pantograph pan current-carrying frictional wear experiment machine provided by the embodiment of the present application
Figure, Fig. 3 show a kind of partial top view of pantograph pan current-carrying frictional wear experiment machine provided by the embodiment of the present application,
Incorporated by reference to Fig. 1-Fig. 3, the application provides a kind of pantograph pan current-carrying frictional wear experiment machine 100, comprising: contact line installation knot
Structure 40 and pantograph pan mounting structure 50；
Contact line mounting structure 40, comprising: rotating circular disk 8, the first driving motor 9 being electrically connected with rotating circular disk 8, winding
In at least one raised points 10 rotating circular disk 8 peripheral contact line 7 and be fixed in contact line 7；Contact line 7 and protrusion
Point 10 is under the driving of the first driving motor 9 as rotating circular disk 8 rotates；
Pantograph pan mounting structure 50, comprising: slide plate 11, installation frame 12, swing frame 13, total frame 14, first
Mobile controller 4, oscillating control device 18, the second mobile controller 20, pressure control device 21；Wherein, slide plate 11 is solid
It is scheduled on installation frame 12 and is contacted with contact line 7 or raised points 10；Installation frame 12 and pressure control device 21 are fixed respectively
In on swing frame 13, pressure control device 21 is located at side of the installation frame 12 far from rotating circular disk 8, pressure control device 21
For applying pressure to slide plate 11 by installation frame 12, change slide plate 11 and the contact pressure between contact line 7 or raised points 10
Power；Swing frame 13 is fixed on total frame 14；Oscillating control device 18 is for controlling the swing of swing frame 13, first movement control
Device 4 processed and the second mobile controller 20 are connect with total frame 14 respectively；
Swing frame 13, installation frame 12 and slide plate 11 as a whole, are put under the driving of oscillating control device 18
It is dynamic；Total frame 14, swing frame 13, installation frame 12 and slide plate 11 as a whole, under the driving of first movement control device 4
It is horizontally moved relative to rotating circular disk 8；Total frame 14, swing frame 13, installation frame 12 and slide plate 11 as a whole,
Vertical shift is carried out relative to rotating circular disk 8 under the driving of second mobile controller 20.
Specifically, incorporated by reference to Fig. 1-Fig. 3, the current-carrying frictional wear experiment machine of pantograph pan 11 provided herein
100, when simulating train high-speed cruising, mechanical shock and thermal shock coupling are influenced on caused by pantograph pan 11.
Contact line 7 is wrapped on rotating circular disk 8, is driven by the first driving motor 9, and the first driving motor 9 in the application for example can be with
For variable-frequency motor, accurately to control the rotation speed of rotating circular disk 8.Slide plate 11 is fixed on installation frame 12, with installation frame
12 form an entirety, participate in various movements.The relative motion between current-carrying contact line 7 and slide plate 11 by introducing rotation,
Simulate current-carrying high-speed slide between bow net.Raised points 10 are introduced in contact line 7 simultaneously, carry out simulating contact net hard spot.?
Under the driving of one mobile controller 4, oscillating control device 18 and the second mobile controller 20, so that slide plate 11 realizes level
Movement swings and moves up and down, and several movements can also be in conjunction with carrying out, so as to complete slide plate 11 relative to contact line 7 just
Often movement, zigzagging etc..Under visual angle shown in Fig. 3, the right side of installation frame 12 is held out against by pressure control device 21,
By pressure control device 21, the contact pressure between slide plate 11 and contact line 7 is periodically changed.Slide plate 11 and installation frame
12 are mounted on swing frame 13, and the oscillating control device 18 of 13 side of swing frame applies active force to swing frame 13, make
Slide plate 11, installation frame 12 and swing frame 13 are swung as a whole, for avoiding contact on line 7 raised points 10 to slide plate 11
Collision.Slide plate 11, installation frame 12, swing frame 13 as a whole, are mounted on total frame 14, by first movement control
Movement on horizontal and vertical direction is done in device 4 processed and the driving of the second mobile controller 20, by the movement on vertical direction,
Zigzagging of the analog contact net on slide plate 11 can be adjusted on the whole slide plate and connect by the movement in horizontal direction
Touch the relative position of line in the horizontal direction.
In conjunction with Fig. 1-Fig. 3,100 structure of the wear with current testing machine arrangement of pantograph pan 11 provided herein is tight
It gathers, high reliablity, installation and maintenance are convenient；Testing machine 100 is whole, and using horizontal type structure layout, roomy base, whole center of gravity is low,
It runs smoothly；Pass through motor-driven nut screw mechanism and sliding rail (corresponding first movement control device 4 and the second mobile control
Device 20 processed) realize movement and the motion guide of total frame 14, and installing frame is realized by sliding rail (corresponding first sliding rail 17)
The motion guide of frame 12, not only structure was simple, safe and reliable, but also can satisfy accuracy requirement；It both can be independent between each movement mechanism
Movement, and control joint coordination movement can be passed through；Control is flexible, easy.
In addition, passing through total frame 14 in the current-carrying frictional wear experiment machine 100 of pantograph pan 11 provided by the present application
The moving horizontally of horizontal movement and installation frame 12, effective combination of the entirety of pressure control device 21 and part, complete contact
Periodically variable contact pressure applies between line 7 and slide plate 11, loads to automatic steady, unloads, in a certain range continuously
Adjustable, structure is simple, and Yi Shixian is easy to control, and safe and reliable.
Moreover, passing through the combination of swing frame 13 and oscillating control device 18, contact line hard spot (i.e. raised points are realized
10) periodicity to slide plate 11 or the impact of randomness hard spot, features simple structure is easy, and control is simple, while can both be effectively prevented from
8 diameter of contact line rotating circular disk is excessive, but be able to achieve such as over long distances across at mid-span caused by periodicity hard spot impact.It is false
If hard spot impacts a slide plate every distance S (unit: m), train running speed is v (unit: m/s), rotating circular disk revolving speed n=
60v/ (π d) (unit: r/min), revolution N=S/ (π d), when rotating circular disk diameter d is smaller, rotating circular disk revolving speed n is higher, rotation
Disk every revolution, except rotating circular disk rotation N is times in addition to a few, slide plate requires to hide hard spot, the first magnet and the second magnet
Each to be attracted once, i.e. revolving speed n is higher, and the actuation frequency of magnet is higher, when rotating circular disk diameter d minimum, corresponding highest
Revolving speed nmaxHighest no more than magnet is attracted frequency fmax.Currently, the actuation frequency f of magnet is relatively high, so rotation
Disk diameter d can accomplish it is smaller, it is contemplated that the abrasion of contact line, fever the problems such as, rotating circular disk diameter d should not mistake
It is small, it generally can be taken as 1.1m-1.3m.
Optionally, in pantograph pan current-carrying frictional wear experiment machine 100 provided by the embodiment of the present application, pressure control
Device 21 includes cam 15 and the cam motor 16 connecting with cam 15, and cam 15 is contacted with installation frame 12；Cam motor 16
Cam 15 is driven to carry out eccentric motion, the eccentric motion of cam 15 is that slide plate 11 and contact line 7 apply periodically variable compression
Power.
When the application is used as pressure control device 21 using cam 15 and cam motor 16, under visual angle shown in Fig. 2, cam
15 are located at the right side of installation frame 12, when cam 15 holds out against installation frame 12, and slide plate 11 is pressed to contact line 7, installation frame
12 can move horizontally under visual angle shown in Fig. 2, it should be noted that moving horizontally herein refers to installation frame 12 in Fig. 2
Moving left and right under visual angle.When cam motor 16 starts, the eccentric motion using cam 15 is that slide plate 11 and contact line 7 apply
Periodically variable pressing force.Such structure is simple, and Yi Shixian is easy to control, and safe and reliable.Certainly, except use in the application
Cam 15 and cam motor 16 are constituted outside pressure control device 21, other feasible structures also can be used, such as by hydraulic
The piston stroke control of cylinder, telescopic spring and connecting rod mechanism movement etc., realize the variation of contact pressure, the application to this without
It is specific to limit.
Optionally, Fig. 2 is referred to, pantograph pan current-carrying frictional wear experiment machine 100 provided by the embodiment of the present application
In, it further include the first sliding rail 17 on swing frame 13, the first sliding rail 17 is slidably connected with installation frame 12；When cam 15 is to installation
Frame 12 applies active force, and when slide plate 11 is pressed to contact line 7, installation frame 12 is moved horizontally along the first sliding rail 17.In this way,
When slide plate 11 presses to contact line 7, contact line 7 can also apply certain active force to slide plate 11, and the application is that installation frame 12 is set
The first sliding rail 17 is set, slide plate 11 can be made to form rebound after the reaction force by contact line 7 for installation frame 12 empty
Between, to be more nearly the Service Environment of bullet train actual motion.
Optionally, continuing with referring to fig. 2, the current-carrying frictional wear of pantograph pan 11 provided by the embodiment of the present application is tried
It tests in machine 100, total frame 14 further includes the first connector 30, and swing frame 13 is fixed on total frame by the rotation of the first connector 30
On frame 14.In this way, swing frame 13 can be connected with total frame 14 by the rotation of the first connector 30, which can
Preferable fixed function is played to swing frame 13, avoids swing frame 13 and total frame 14 from being detached from, and swing frame can be made
13 carry out the swing of certain amplitude relative to total frame 14, so that driving is slided when not needing contact line hard spot shock slide plate 11
Plate 11 is swung, and avoids mechanical shock of the hard spot to slide plate 11.
Optionally, continuing with referring to fig. 2, pantograph pan current-carrying frictional wear experiment machine provided by the embodiment of the present application
In 100, oscillating control device 18 is located on total frame 14, including the first electromagnet 181 and the second electromagnet 182, the first electromagnetism
Iron 181 and the second electromagnet 182 are individually fixed in the two sides of the first connector 30；
When not needing raised points 10 and hitting slide plate 11, the first electromagnet 181 and 182 timesharing of the second electromagnet are to swing frame
Frame 13 applies electromagnetic attraction, swings swing frame 13, installation frame 12 and slide plate 11.
Specifically, Fig. 2 is referred to, the application introduces the first electromagnet 181 and the second electromagnet 182 is swing frame 13
It provides and swings active force, when not needing raised points 10 (i.e. hard spot) shock slide plate 11, the first electromagnet 181 and the second electromagnet
182 timesharing to swing frame 13 apply electromagnetic attraction, make swing frame 13, installation frame 12 and slide plate 11 in the horizontal plane into
Row is swung, and the position that slide plate 11 is swung can be found in the corresponding position of 11 dashed box of Fig. 3 middle slide plate.Pass through electromagnetic actuation swing frame
13, whether control contact line hard spot collides with slide plate 11, and features simple structure is easy, and control is simple, and contact line 7 and slide plate 11 will not
Cause electric spark or electric arc because hiding hard spot separation.
Certainly, oscillating control device 18 by the way of electromagnet in addition to being realized, in some other embodiment of the application
In, other feasible modes also can be used in oscillating control device 18.Such as shaft can be set on total frame 14, it is twined in shaft
Around draught line, draught line is separately fixed at the two sides of swing frame 13, by the movement of shaft, drives draught line to swing frame
13 apply pulling force, to realize the swing of swing frame 13.
Optionally, continuing with referring to fig. 2, first movement control device 4 includes horizontal slide rail 41, corresponding with horizontal slide rail 41
Horizontal screw lead 5 and what is connect with horizontal screw lead 5 move horizontally driving motor 6, horizontal slide rail 41 and the sliding of total frame 14 connect
It connects；Under the driving for moving horizontally driving motor 6, total frame 14 is moved horizontally along horizontal slide rail 41.Due to slide plate 11, installing frame
Frame 12, swing frame 13 are direct or indirect and total frame 14 is fixed, when total frame 14 is moved horizontally along horizontal slide rail 41
When, it is able to drive slide plate 11 and is moved horizontally relative to the contact line 7 on rotating circular disk 8.It should be noted that when slide plate 11 occurs
Relative to contact line 7 when moving horizontally, slide plate 11 moves horizontally amplitude and can ensure that slide plate 11 always can be with contact line 7
Contact, so as to effectively avoid bow net from separating arc event caused by (i.e. the slide plate 11 of pantograph is separated with contact line 7).
Optionally, Fig. 2 is referred to, the second mobile controller 20 includes upright slide rail 2, corresponding with upright slide rail 2 erects
Raw silk rings thick stick 3 and the vertical shift elevator 1 connecting with vertical lead screw 3 include driving in usual vertical shift elevator 1
Motor, upright slide rail 2 are slidably connected with total frame 14；Under the driving of the driving motor in vertical shift elevator 1, total frame
14 along 2 vertical shift of upright slide rail.Since slide plate 11, installation frame 12, swing frame 13 are direct or indirect and total frame
14 fixations, it (is presented as and moves up and down under visual angle shown in Fig. 2) when total frame 14 is along 2 vertical shift of upright slide rail, it can
Drive slide plate 11 relative to 7 vertical shift of contact line on rotating circular disk 8.It should be noted that when slide plate 11 occur relative to
When the vertical shift of contact line 7, slide plate 11 moves up and down amplitude and can ensure that slide plate 11 can contact always with contact line 7,
So as to effectively avoid bow net from separating arc event caused by (i.e. the slide plate 11 of pantograph is separated with contact line 7).
The current-carrying frictional wear experiment machine 100 that the application introduces pantograph pan 11 comes analog mechanical impact and thermal shock coupling
Cooperate 11 damage mechanisms of slide plate under, on the one hand, the problem of 11 service life of slide plate is far below projected life is advantageously accounted for,
Current carrying quality is improved from the root, to tools such as even running, reduction maintenance cost and the guarantee people's safety trips for ensureing train
Have very important significance；On the other hand, the first-hand number close with Service Environment is provided for the multidisciplinary coupling analysis of bullet train
According to verifying equipment, be conducive to promoted High Speed Train in China design level.
Based on the same inventive concept, the application also provides a kind of making for pantograph pan current-carrying frictional wear experiment machine 100
With method, making for pantograph pan current-carrying frictional wear experiment machine provided herein is shown incorporated by reference to Fig. 1-Fig. 4, Fig. 4
With a kind of flow chart of method, this method comprises:
Step 101, the first driving motor 9 of starting, make rotating circular disk 8 that contact line 7 and raised points 10 be driven at the uniform velocity to rotate；
Step 102, starting pressure control device 21, so that pressure control device 21 is provided to the installation frame 12 of slide plate 11
Pressure constantly changes the contact pressure between slide plate 11 and contact line 7；
Step 103, the second mobile controller 20 of starting, make total frame 14, swing frame 13, installation frame 12 and slide plate
11 as a whole, carries out vertical shift relative to rotating circular disk 8, and the zigzag between simulating contact line 7 and slide plate 11 is opposite to transport
It is dynamic；
Step 104, when do not need raised points 10 hit slide plate 11 when, start 11 pendulous device of slide plate, pass through weave control
Device 18 drives swing frame 13 to be swung；
Step 105, when needing raised points 10 to hit slide plate 11, close 11 pendulous device of slide plate, make raised points 10 and sliding
Plate 11 contacts；When raised points 10 and slide plate 11 contact, slide plate 11 and slide plate installation frame 12 are together to separate rotating circular disk 8
Direction sliding, makes raised points 10 pass through slide plate 11.
It repeats the above steps again and again, until completing the friction and wear test of pantograph pan 11.
During friction and wear test, realization and association of the closed-loop control system for experimental bench multi-motion can be used
It adjusts, experimental data is obtained using sensor, and consider that high temperature problem and each mechanism relative motion, Attention Types are selected, layout, walked
Line and protection.Using the abrasion loss of electronic balance measurement slide plate 11, ground using digital camera and optical microscopy shooting slide plate 11
Surface topography is damaged, Contact Pair temperature, contact pressure, vibration acceleration, arcing time and arcing number etc. pass through testing machine 100
Data collection system acquisition.Finally, handling measurement data and shooting/scanned picture.
Optionally, pressure control device 21 includes cam 15 and the cam motor 16 connecting with cam 15, cam 15 and peace
The frame 12 that frames up contact；
In above-mentioned steps 102, start pressure control device 21, so that installation frame of the pressure control device 21 to slide plate 11
12 provide pressure, constantly change the contact pressure between slide plate 11 and contact line 7, specifically:
Starting cam motor 16, cam 15, which at the uniform velocity rotates, carries out eccentric motion, is constantly 11 He of slide plate using accentric support
Contact line 7 applies periodically variable pressing force.
The current-carrying frictional wear experiment machine 100 of above-mentioned pantograph pan 11 provided by the present application has high speed big current-carrying, week
The features such as contact pressure and hard spot of phase property dynamic change impact the periodicity or randomness of slide plate 11, cooperates its user
Method can complete sliding, contact net zigzagging, periodicity or randomness hard spot relatively between contact line 7 and slide plate 11
Impact, the functions such as coordination of movement relation between cyclically-varying contact pressure, each mechanism.
As can be seen from the above embodiments beneficial effect existing for the application is:
(1) in pantograph pan current-carrying frictional wear experiment machine provided by the present application and application method, testing machine structure cloth
Compact, high reliablity is set, installation and maintenance are convenient；For complete machine using horizontal type structure layout, roomy base, center of gravity is low, runs smoothly；
Movement and the motion guide of total frame are realized by motor-driven nut screw mechanism and sliding rail, and are realized and pacified by sliding rail
Frame up the motion guide of frame, and not only structure is simple, safe and reliable, but also can satisfy accuracy requirement；It both can be only between each movement mechanism
Vertical movement, and control joint coordination movement can be passed through；Control is flexible, easy.
(2) in pantograph pan current-carrying frictional wear experiment machine provided by the present application and application method, pass through total frame
Horizontal movement and the horizontal movement of installation frame, effective combination of the entirety of cam rotation and part, complete contact line and slide plate
Between periodically variable contact pressure apply, load to automatic steady, unload, be continuously adjusted in a certain range, structure letter
Single, Yi Shixian is easy to control, and safe and reliable.
(3) combination for passing through swing frame and oscillating control device realizes contact line hard spot (i.e. raised points) to cunning
The periodicity or randomness hard spot of plate are impacted, and features simple structure is easy, and control is simple, while can both be effectively prevented from contact line rotation
Disk diameter it is excessive (as long as rotating circular disk revolving speed 60v/ (π d) < magnet highest be attracted frequency, d be rotating circular disk diameter,
V is train speed), but be able to achieve such as over long distances across at mid-span caused by periodicity hard spot impact.
Above description shows and describes several preferred embodiments of the present application, but as previously described, it should be understood that the application
Be not limited to forms disclosed herein, should not be regarded as an exclusion of other examples, and can be used for various other combinations,
Modification and environment, and the above teachings or related fields of technology or knowledge can be passed through within that scope of the inventive concept describe herein
It is modified.And changes and modifications made by those skilled in the art do not depart from spirit and scope, then it all should be in this Shen
It please be in the protection scope of appended claims.
Claims (9)
1. a kind of pantograph pan current-carrying frictional wear experiment machine characterized by comprising contact line mounting structure and pantograph
Slide plate mounting structure；
The contact line mounting structure, comprising: rotating circular disk, the first driving motor being electrically connected with the rotating circular disk, winding
Contact line in the rotating circular disk periphery and at least one raised points for being fixed in the contact line；The contact line
With the raised points as the rotating circular disk rotates under the driving of first driving motor；
The pantograph pan mounting structure includes: slide plate, installation frame, swing frame, total frame, first movement control dress
It sets, oscillating control device, the second mobile controller, pressure control device；Wherein, the slide plate is fixed on the installation frame
It is upper and with the contact line or the raised point contact；The installation frame and the pressure control device are individually fixed in described
On swing frame, the pressure control device is located at side of the installation frame far from the rotating circular disk, the pressure control
Device processed is used to change the slide plate and the contact line or described convex to slide plate application pressure by the installation frame
Contact pressure between starting point；The swing frame is fixed on total frame；The oscillating control device is for controlling institute
Swing frame swing is stated, the first movement control device and second mobile controller connect with total frame respectively
It connects；
The swing frame, the installation frame and the slide plate as a whole, under the driving of the oscillating control device into
Row is swung；Total frame, the swing frame, the installation frame and the slide plate as a whole, in the first movement
It is horizontally moved under the driving of control device relative to the rotating circular disk；Total frame, the swing frame, the peace
Frame and the slide plate frame up as a whole, is carried out under the driving of second mobile controller relative to the rotating circular disk
Vertical shift.
2. a kind of pantograph pan current-carrying frictional wear experiment machine according to claim 1, which is characterized in that the pressure
Control device includes cam and the cam motor that connect with the cam, and the cam is contacted with the installation frame；It is described convex
Turbin generator drives the cam to carry out eccentric motion, and the eccentric motion of the cam is that the slide plate and the contact line apply week
The pressing force of phase property variation.
3. a kind of pantograph pan current-carrying frictional wear experiment machine according to claim 2, which is characterized in that the swing
It further include the first sliding rail on frame, first sliding rail is slidably connected with the installation frame；When the cam is to the installation
Frame applies pressure, and when the slide plate is pressed to the contact line, the installation frame is moved horizontally along first sliding rail.
4. a kind of pantograph pan current-carrying frictional wear experiment machine according to claim 1, which is characterized in that total frame
Frame further includes the first connector, and the swing frame is fixed on total frame by first connector rotation.
5. a kind of pantograph pan current-carrying frictional wear experiment machine according to claim 4 and application method, feature exist
In the oscillating control device is located on total frame, including the first electromagnet and the second electromagnet, first electromagnet
The two sides of first connector are individually fixed in second electromagnet；
When not needing the raised points and hitting the slide plate, first electromagnet and the second electromagnet timesharing are to described
Swing frame applies electromagnetic attraction, swings the swing frame, the installation frame and the slide plate.
6. a kind of pantograph pan current-carrying frictional wear experiment machine according to claim 1, which is characterized in that described first
Mobile controller includes horizontal slide rail, horizontal screw lead corresponding with the horizontal slide rail and connect with the horizontal screw lead
Move horizontally driving motor, the horizontal slide rail is slidably connected with total frame；In the driving motor of moving horizontally
Under driving, total frame is moved horizontally along the horizontal slide rail.
7. a kind of pantograph pan current-carrying frictional wear experiment machine according to claim 1, which is characterized in that described second
Mobile controller includes upright slide rail, vertical lead screw corresponding with the upright slide rail and connect with the vertical lead screw
Vertical shift elevator, the upright slide rail is slidably connected with total frame；In the driving of the vertical shift elevator
Under, total frame is along the upright slide rail vertical shift.
8. it is a kind of claim 1-7 it is any as described in a kind of pantograph pan current-carrying frictional wear experiment machine user
Method characterized by comprising
Start the first driving motor, makes rotating circular disk that contact line and raised points be driven at the uniform velocity to rotate；
Start pressure control device, make pressure control device to slide plate installation frame provide pressure, constantly change slide plate with contact
Contact pressure between line；
Start the second mobile controller, makes total frame, swing frame, installation frame and slide plate as a whole, relative to described
Rotating circular disk carries out vertical shift, the zigzag relative motion between simulating contact line and slide plate；
When do not need raised points hit slide plate when, start slide plate pendulous device, by oscillating control device drive swing frame into
Row is swung；
When needing raised points to hit slide plate, slide plate pendulous device is closed, contacts raised points with slide plate；When raised points and slide plate
When contact, slide plate and slide plate installation frame are slided to the direction far from rotating circular disk together, and raised points is made to pass through slide plate.
9. the application method of pantograph pan current-carrying frictional wear experiment machine according to claim 8, which is characterized in that institute
The cam motor that pressure control device includes cam and connect with the cam is stated, the cam is contacted with the installation frame；
Start pressure control device, make pressure control device to slide plate installation frame provide pressure, constantly change slide plate with contact
Contact pressure between line, specifically:
Starting cam motor, cam, which at the uniform velocity rotates, carries out eccentric motion, using accentric support, constantly for the slide plate and described connects
It touches line and applies periodically variable pressing force.
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| CN112378773A (en) * | 2021-01-15 | 2021-02-19 | 东营市宇彤机电设备有限责任公司 | Near-bit short joint ground test device |
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| CN112924785A (en) * | 2021-01-28 | 2021-06-08 | 辽宁工程技术大学 | Bow net rolling electric contact experiment machine for experiment |
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| CN113533438B (en) * | 2021-07-26 | 2024-04-09 | 中国科学院宁波材料技术与工程研究所 | In-situ testing device and method for friction arc burning loss of electric contact material |
| CN113740248A (en) * | 2021-09-15 | 2021-12-03 | 江苏美霖铜业有限公司 | Experimental device for friction loss between high-strength high-speed rail contact wire and pantograph |
| CN113959877A (en) * | 2021-09-17 | 2022-01-21 | 上海工程技术大学 | Current-carrying friction test device for simulating sliding contact of pantograph-catenary of electric train |
| CN114216806A (en) * | 2022-01-17 | 2022-03-22 | 清华大学天津高端装备研究院 | Current-carrying friction wear test device |
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| CN114986343B (en) * | 2022-06-29 | 2024-02-06 | 成都西交轨道交通技术服务有限公司 | Rapid polishing system and method for rigid contact line |
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