CN106644530A - Test apparatus, fatigued test method and output force test method of railway freight car integrated brake cylinder - Google Patents
Test apparatus, fatigued test method and output force test method of railway freight car integrated brake cylinder Download PDFInfo
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- CN106644530A CN106644530A CN201611041462.3A CN201611041462A CN106644530A CN 106644530 A CN106644530 A CN 106644530A CN 201611041462 A CN201611041462 A CN 201611041462A CN 106644530 A CN106644530 A CN 106644530A
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- railway freight
- checking cylinder
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/28—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for testing brakes
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a test apparatus, fatigued test method and output force test method of a railway freight car integrated brake cylinder. The test apparatus comprises a support bench, an air source, an air supply pipeline, a valve apparatus and a control apparatus, wherein a railway freight car integrated brake cylinder to be tested is arranged on the support bench; the air source is connected with the railway freight car integrated brake cylinder to be tested through the air supply pipeline; the valve apparatus has a first work position enabling the air source to communicate with the railway freight car integrated brake cylinder to be tested through the air supply pipeline and also has a second work position enabling the railway freight car integrated brake cylinder to be tested to communicate with the outside; and the control apparatus is electrically connected with the valve apparatus. According to the technical scheme, the problem of incapability of performing life testing on the railway freight car integrated brake cylinder in the prior art is solved.
Description
Technical field
The present invention relates to equipment of railway transportation technical field, in particular to a kind of integrated checking cylinder of railway freight-car
Test device, fatigue and power output test method.
Background technology
Checking cylinder is the critical component of rail wagon brake system, and effect is to convert the air pressure of Pneumatic brake systems
For retrothrust.China railways lorry traditional braking cylinder is mounted on vehicle body bottom frame, is passed brake force by brake lever
Be delivered on bogie, make brake beam recline wheel produce braking action.
Stopping power and fatigue life for accurate evaluation checking cylinder, needs to carry out checking cylinder power output test and tired
Labor is tested.At present the country is without checking cylinder test method and corresponding experimental rig, it is impossible to carry out these tests, and then cannot be right
The service life of checking cylinder is accurately held.
The content of the invention
Present invention is primarily targeted at providing a kind of test device of the integrated checking cylinder of railway freight-car, fatigue and power output
Test method, to solve the problems, such as of the prior art to carry out life test to the integrated checking cylinder of railway freight-car.
To achieve these goals, according to an aspect of the invention, there is provided a kind of railway freight-car integrated checking cylinder
Test device, including：Supporting table, the integrated checking cylinder of railway freight-car to be tested is arranged in supporting table；Source of the gas and air-supply pipeline,
Source of the gas is connected by air-supply pipeline with the integrated checking cylinder of railway freight-car to be tested；Valving, valving have make source of the gas with
The first operating position that the integrated checking cylinder of railway freight-car to be tested passes through air-supply pipeline connection, valving also have make it is to be tested
The second operating position that the integrated checking cylinder of railway freight-car is in communication with the outside；Control device, control device is electrically connected with valving.
Further, test device also includes：Lead column, is arranged in supporting table；Pressing plate, is provided with guiding on pressing plate
Hole, lead column is located in pilot hole, and push rod and the pressing plate of the integrated checking cylinder of railway freight-car to be tested coordinate.
Further, lead column is two, and pilot hole is two, and two pilot holes are separately positioned on the both sides of pressing plate, two
Individual lead column is located in respectively in two pilot holes.
Further, test device also includes the position limiting structure being arranged in lead column, and position limiting structure limits pressing plate and leading
To the shift position on post.
Further, position limiting structure is stop nut, and stop nut is set in outside lead column.
Further, test device also includes load transducer, and one end of load transducer is connected with pressing plate, load sensing
The other end of device is connected with push rod, and control device is electrically connected with load transducer.
Further, test device also includes the connecting rod being set in outside push rod, and connecting rod is connected with load transducer.
Further, test device also includes the baroceptor being arranged on air-supply pipeline.
Further, test device also include be arranged on air-supply pipeline on pressure limiting valve, pressure limiting valve be located at valving and
Between source of the gas.
Further, valving includes the reversal valve being arranged on air-supply pipeline.
According to a further aspect in the invention, there is provided a kind of fatigue test method of the integrated checking cylinder of railway freight-car, fatigue
Test method includes：Step S1, makes valving in the first operating position so that source of the gas pipeline connection and makes to be measured with blowing
The integrated checking cylinder braking of examination railway freight-car；Step S2, when the pressure that baroceptor is detected reaches predetermined value, control device enters
Row is counted；Step S3, makes valving in the second operating position so that air-supply pipeline is in communication with the outside and makes railway to be tested
The integrated checking cylinder of lorry is alleviated；Step S4, repeat step S1 to S3, the counting for making control device reaches pre-determined number.
According to a further aspect in the invention, there is provided a kind of power output test method of the integrated checking cylinder of railway freight-car, it is defeated
Service test method includes：Step A1, makes valving in the first operating position so that source of the gas pipeline connection and makes with blowing
The integrated checking cylinder braking of railway freight-car to be tested；Step A2, when the pressure that baroceptor is detected reaches predetermined value, control dress
Detection numerical steps A3 for obtaining load transducer are put, valving is made in the second operating position so that air-supply pipeline and the external world
Connect and make the integrated checking cylinder of railway freight-car to be tested to alleviate.
Using technical scheme, the integrated checking cylinder of railway freight-car to be tested is arranged in supporting table.By when
Valving switches between the first operating position and the second operating position so that source of the gas and the integrated braking of railway freight-car to be tested
Cylinder is connected or disconnected, and then causes the integrated checking cylinder of railway freight-car to be tested in on-position or relieved state.It is above-mentioned
Structure can continue to output power test or testing fatigue, therefore technical scheme solution to the integrated checking cylinder of railway freight-car
Determine the problem that life test cannot be carried out to the integrated checking cylinder of railway freight-car of the prior art.
Description of the drawings
The Figure of description for constituting the part of the application is used for providing a further understanding of the present invention, and the present invention's shows
Meaning property embodiment and its illustrated for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the internal structure schematic diagram of the integrated checking cylinder of railway freight-car；
Fig. 2 shows the external structure schematic diagram of the integrated checking cylinder of railway freight-car；And
Fig. 3 shows the structural representation of the embodiment of the test device of the integrated checking cylinder of railway freight-car of the invention
Figure.
Wherein, above-mentioned accompanying drawing is marked including the following drawings：
10th, supporting table；20th, the integrated checking cylinder of railway freight-car to be tested；21st, push rod；30th, source of the gas；40th, air-supply pipeline；50、
Valving；60th, control device；70th, lead column；80th, pressing plate；81st, pilot hole；90th, position limiting structure；100th, connecting rod；110、
Load transducer；120th, baroceptor；130th, pressure limiting valve.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Below with reference to the accompanying drawings and in conjunction with the embodiments describing the present invention in detail.
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only some embodiments of the present application, rather than the embodiment of whole.Below
It is illustrative to the description only actually of at least one exemplary embodiment, never conduct is to the application and its application or makes
Any restriction.Based on the embodiment in the application, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of the application protection.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
Unless specifically stated otherwise, the part for otherwise illustrating in these embodiments and positioned opposite, the digital table of step
Scope of the present application is not limited up to formula and numerical value.Simultaneously, it should be appreciated that for the ease of description, each portion shown in accompanying drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, the technology, method and apparatus should be considered to authorize explanation
A part for book.In all examples shown here and discussion, any occurrence should be construed as merely exemplary, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should be noted that：Similar label
Similar terms is represented in following accompanying drawing with letter, therefore, once be defined in a certain Xiang Yi accompanying drawing, then subsequent attached
It need not be further discussed in figure.
In the description of the present application, it is to be understood that the noun of locality as " forward and backward, upper and lower, left and right ", " it is laterally, vertical,
Vertically, the orientation or position relationship indicated by level " and " top, bottom " etc. is normally based on orientation shown in the drawings or position and closes
System, is for only for ease of description the application and simplifies description, and in the case where contrary explanation is not made, these nouns of locality are not indicated that
There must be specific orientation or with specific azimuth configuration and operation with the device or element of hint indication, therefore can not manage
Solution is the restriction to the application protection domain；The noun of locality " inside and outside " is referred to relative to inside and outside each part profile of itself.
For the ease of description, space relative terms can be used here, such as " ... on ", " ... top ",
" in ... upper surface ", " above " etc., for describing such as a device or feature shown in the figure and other devices or spy
The spatial relation levied.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.For example, if the device in accompanying drawing is squeezed, it is described as " in other devices
To be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made to the relative description in space used herein above.
Furthermore, it is necessary to explanation, limits parts, it is only for be easy to using the word such as " first ", " second "
Corresponding parts are distinguished, such as without Stated otherwise, above-mentioned word does not have particular meaning, therefore it is not intended that to this
The restriction of application protection domain.
As shown in figure 3, the test device of the integrated checking cylinder of the railway freight-car of the present embodiment includes, supporting table 10, source of the gas 30,
Air-supply pipeline 40, valving 50 and control device 60.Wherein, the integrated checking cylinder 20 of railway freight-car to be tested is arranged on support
On platform 10.Source of the gas 30 is connected by air-supply pipeline 40 with the integrated checking cylinder 20 of railway freight-car to be tested.Valving 50 has to be made
The first operating position that source of the gas 30 is connected with the integrated checking cylinder 20 of railway freight-car to be tested by air-supply pipeline 40, valving 50
Also there is the second operating position for making the integrated checking cylinder 20 of railway freight-car to be tested be in communication with the outside.Control device 60 is filled with valve
Put 50 electrical connections.
Using the technical scheme of the present embodiment, the integrated checking cylinder of railway freight-car to be tested is arranged in supporting table.Pass through
When valving switch between the first operating position and the second operating position so that source of the gas and the integrated system of railway freight-car to be tested
Dynamic cylinder connection disconnects, and then causes the integrated checking cylinder of railway freight-car to be tested in on-position or relieved state.On
Stating structure can continue to output power test or testing fatigue, therefore the technical side of the present embodiment to the integrated checking cylinder of railway freight-car
Case solves the problems, such as of the prior art to carry out life test to the integrated checking cylinder of railway freight-car.
The structure of the integrated checking cylinder of railway freight-car is introduced first, as depicted in figs. 1 and 2, integrated checking cylinder is installed
3 installing holes on seat coordinate with the installing hole on the special brake beam of integrated braking, are consolidated on integrated checking cylinder using bolt connection
It is scheduled on brake beam, piston rod is connected with brake lever.When vehicle is braked, Pneumatic brake systems pressure air is filled with checking cylinder
Back cavity, overcomes the precompression of return spring, promotes piston to move forward, and piston rod stretches out checking cylinder output mechanical thrust, promotes
Brake lever produces brake force；When vehicle is alleviated, the pressure air of checking cylinder back cavity enters air by Pneumatic brake systems, living
Plug is moved rearwards by the presence of return spring, drives piston rod to retract, and releases brake force.
As shown in figure 3, in the technical scheme of the present embodiment, test device also includes lead column 70 and pressing plate 80.Wherein,
Lead column 70 is arranged in supporting table 10.Pilot hole 81 is provided with pressing plate 80, lead column 70 is located in pilot hole 81, to be measured
The push rod 21 of the integrated checking cylinder 20 of examination railway freight-car coordinates with pressing plate 80.Specifically, when push rod 21 is moved upwards, push rod 21 is pushed away
Dynamic pressure plate 80 is moved upwards simultaneously.Lead column 70 can be defined to the direction of motion of pressing plate 80, and then to the shifting of push rod 21
It is dynamic to be oriented to.It is above-mentioned to cause the motion of push rod 21 more stable, also cause the result of test more accurate.
As shown in figure 3, in the technical scheme of the present embodiment, lead column 70 is two, and pilot hole 81 is two, and two are led
The both sides of pressing plate 80 are separately positioned on to hole 81, two lead columns 70 are located in respectively in two pilot holes 81.Specifically, two
Lead column 70 is separately positioned on two side positions of supporting table 10, and two lead columns 70 are passed respectively from two pilot holes 81.Pass through
Two lead columns 70 cause the position of pressing plate 80 to keep level of approximation, and then the power of the guarantee applying of push rod 21 is effect upwards
Power, and then the accuracy of guarantee test data.Of course, it is possible to change the quantity of lead column 70, example according to real work needs
Three, or four lead columns are such as set.
As shown in figure 3, in the technical scheme of the present embodiment, test device is also spacing in lead column 70 including being arranged on
Structure 90, position limiting structure 90 limits shift position of the pressing plate 80 in lead column 70.Specifically, the spacing pressing plate 80 of position limiting structure 90
In the limit of sports record position of lead column 70, and then limit the movement position of push rod 21.
As shown in figure 3, in the technical scheme of the present embodiment, position limiting structure 90 is stop nut, stop nut is set in
Outside lead column 70.Specifically, stop nut is set in the top of lead column 70, be arranged with each lead column 70 one it is spacing
Nut.Stop nut in two lead columns 70 is located at same level position, and then causes when pressing plate 80 is contacted with stop nut
When, pressing plate 80 can keep level.
As shown in figure 3, in the technical scheme of the present embodiment, test device also includes load transducer 110, load sensing
One end of device 110 is connected with pressing plate 80, and the other end of load transducer 110 is connected with push rod 21, and control device 60 is passed with load
Sensor 110 is electrically connected.Specifically, load transducer 110 is arranged between pressing plate 80 and push rod 21.When push rod 21 promotes pressing plate 80
After contacting with stop nut, push rod 21 continues up force, and now load transducer 110 records the power output number of lower push-rod 21
According to.Load transducer 110 by the data transfer collected to control device 60, and then realize to the integrated system of railway freight-car to be tested
The power output testing experiment of dynamic cylinder 20.
As shown in figure 3, in the technical scheme of the present embodiment, test device also includes the connecting rod being set in outside push rod 21
100, connecting rod 100 is connected with load transducer 110.It can be observed from fig. 2 that the end of push rod 21 includes two stators, it is fixed
Location hole is provided with piece.The end construction of above-mentioned push rod 21 is not easy to constantly acting load sensor 110, therefore arranges connecting rod
100 structures.Specifically, the lower end of connecting rod 100 is connected on two stators, and is consolidated by the end of lock pin and push rod 21
It is fixed.The upper end of connecting rod 100 is connected with load transducer 110.
As shown in figure 3, in the technical scheme of the present embodiment, test device also includes the gas being arranged on air-supply pipeline 40
Pressure sensor 120.Specifically, baroceptor 120 is used for detection input to the integrated checking cylinder 20 of railway freight-car to be tested
The pressure of gas.When fatigue test is carried out, first make valving in the first operating position, source of the gas 30 connects with air-supply pipeline 40
It is logical, gas is filled with to the integrated checking cylinder 20 of railway freight-car to be tested.When the pressure that baroceptor 120 is detected reach it is pre-
During definite value, control device 60 thinks that the integrated checking cylinder 20 of railway freight-car to be tested has completed braking maneuver, this timed unit
60 control valve devices are in the second operating position, and make the integrated checking cylinder 20 of railway freight-car to be tested be in communication with the outside, to be measured
The integrated checking cylinder 20 of examination railway freight-car is in relieved state.Repeat the above steps are capable of achieving to treat the integrated system of test railway freight-car
The fatigue test of dynamic cylinder 20.
As shown in figure 3, in the technical scheme of the present embodiment, test device also includes the limit being arranged on air-supply pipeline 40
Pressure valve 130, pressure limiting valve 130 is located between valving 50 and source of the gas 30.Specifically, gas pressure of the pressure limiting valve 130 to source of the gas 30
Power is controlled.
Preferably, valving 50 includes the reversal valve being arranged on air-supply pipeline 40.
The said equipment can carry out power output test and fatigue test to the integrated checking cylinder 20 of railway freight-car to be tested.Specifically
Ground, integrated checking cylinder power output test objective is in order to confirm whether the thrust that checking cylinder is exported meets standard requirement, according to collection
Into the principle Analysis of checking cylinder, power output test method can be divided into simulating brake cylinder working state and power output tests two sides
Face.Integrated checking cylinder fatigue test purpose is required to confirm whether checking cylinder long-time serviceability meets standard, root
According to the principle Analysis of integrated checking cylinder, fatigue test method can be divided into simulating brake cylinder working state and automatically control repetition
The aspect of test two.
Present invention also provides a kind of fatigue test method of the integrated checking cylinder of railway freight-car, according to the fatigue examination of the application
The embodiment of proved recipe method includes：Step S1, makes valving 50 in the first operating position so that source of the gas 30 and air-supply pipeline 40
Connect and make the integrated checking cylinder 20 of railway freight-car to be tested to brake；Step S2, the pressure that baroceptor 120 is detected reaches pre-
During definite value, control device 60 is counted；Step S3, make valving 50 in the second operating position so that air-supply pipeline 40 with
External world's connection simultaneously alleviates the integrated checking cylinder 20 of railway freight-car to be tested；Step S4, repeat step S1 to S3 makes control device 60
Counting reach pre-determined number.
Simulating brake cylinder working status method is：The first step, integrated checking cylinder is arranged on testing stand, should ensure that braking
There is no change in location in cylinder process of the test；Second step, wind regime is connected the compressed air for providing abundance with testing stand, by testing stand
Pneumatic brake pipe be connected on the interface of integrated checking cylinder back cavity, test bench control system should be able to control piper realize fill
Wind, air draft action, for the compressed air that integrated checking cylinder provides rated pressure；3rd step, integrated brake cylinder piston rod with it is spacing
Mechanism connects, and position-limit mechanism should be able to limit piston rod and linearly extend and retract, and guide effect be played, while can adjust
The overhang of whole position limitation piston rod, controls brake cylinder piston rod stroke.Exporting force test method is：Live in integrated checking cylinder
Design and installation pressure sensor between stopper rod and position-limit mechanism, by piston rod power output electric signal is converted into, and is passed by holding wire
Transport to static data Acquisition Instrument display output force data.
Present invention also provides a kind of power output test method of the integrated checking cylinder of railway freight-car, according to the output of the application
The embodiment of power test method includes：Step A1, makes valving 50 in the first operating position so that source of the gas 30 and ajutage
Road 40 connects and brakes the integrated checking cylinder 20 of railway freight-car to be tested；Step A2, the pressure that baroceptor 120 is detected reaches
During to predetermined value, control device 60 obtains the detection numerical value of load transducer 110；Step A3, makes valving 50 be in second
Operating position is so that air-supply pipeline 40 is in communication with the outside and alleviates the integrated checking cylinder 20 of railway freight-car to be tested.
Wherein, simulating brake cylinder working status method is consistent with checking cylinder power output simulating brake cylinder working status method.
And automatically control repetition test method and be：Test bench control system is coordinated using PLC control system, magnetic valve and sensor to be realized
Automatically control.PLC control system is to test the core of bench control system, by electromagnetism of the internal processes control on pipeline
Valve carries out filling wind automatically, obtain sensor feedback pressure reaches air draft after quota pressure, and air draft sensor feedback pressure is minimum
After repeat it is above-mentioned fill wind, air draft action, and operation of recording number of times automatically.
According to said structure, the side device of the integrated checking cylinder of railway freight-car of the application has following characteristics：
Integrated checking cylinder multi-function test stand is mainly by mechanical system, air pipe system, control system and test system 4
Divide and constitute.Integrated checking cylinder multi-function test stand schematic diagram is shown in Fig. 2.
Mechanical system is mainly by bearing base, carrying platform, bearing beam, guide post, stop nut, connecting plate and bearing pin
Deng composition.Bearing base is the space frame welded with channel-section steel, and upside welds together with carrying platform, and inside is integrated to accommodate
, there is a big hole in the space of checking cylinder in the middle of carrying platform, integrated checking cylinder can be put into from upside, and brake cylinder casing outer
Just be supported on carrying platform, brake cylinder piston rod vertically upward, using checking cylinder self gravitation and piston rod release it is anti-
Active force clamps checking cylinder.Bearing beam using square steel manufacture, play carrying and guide effect, be horizontally mounted, bearing beam and
Adopted between connecting plate and brake cylinder piston rod using threaded connection between load transducer, load transducer and connecting plate
Bearing pin connection, connecting plate lower surface and the closely connected cooperation of piston rod, it is ensured that will not be mutually shifted, relative position is fixed.Guide post profit
It is vertically mounted on carrying platform with nut, penetrates 2 circular holes on bearing beam, is coordinated with bearing beam and play the guiding role,
Ensure brake cylinder piston rod upward vertical movement during braking.2 guide post upper ends are respectively mounted stop nut, control and regulation system
Dynamic cylinder stroke.
Air pipe system is mainly made up of pressure limiting valve, magnetic valve, baroceptor, air hose and pipeline connecting parts.
Air pipe system connects wind regime and integrated checking cylinder using air hose, and for integrated checking cylinder compressed air is provided.Air is soft
Pipe starts to be sequentially connected after pressure limiting valve, magnetic valve, baroceptor and reaches checking cylinder from wind regime.Pressure limiting valve can be adjusted into examination
The air pressure of platform is tested, is allowed to enter testing stand with specified air pressure, it is ensured that testing stand air-pressure stable.Magnetic valve and
Baroceptor is the part for controlling compressed air flow direction.
Control system is mainly made up of PLC control system, magnetic valve, baroceptor and holding wire.PLC control system is
The core of control system, is responsible for being instructed to magnetic valve sending action, gathers baroceptor pressure signal, carries out logic judgment true
Determine action beat.Magnetic valve is the execution unit of control system, according to the instruction of PLC control system complete checking cylinder fill wind,
Air draft and pressurize action.Baroceptor is the feedback element of control system, detection braking cylinder air pressure data feedback to PLC
Control system, carries out logic judgment and provides foundation for PLC control system.
Test system is that the test of checking cylinder power output is special, mainly by UCAM static datas Acquisition Instrument and load transducer
Constitute.Load transducer is arranged between bearing beam and connecting plate, for the thrust that detection braking cylinder piston rod stretches out generation,
Electric signal is converted to by data line transfer to UCAM static data Acquisition Instruments, UCAM static datas Acquisition Instrument receives signal and passes through
Calculation process, show that checking cylinder exports force data.
Operation principle：When carrying out integrated checking cylinder power output test, wind regime compressed air Jing pressure limiting valve is adjusted to specified pressure
Testing stand is filled with after power, PLC control system sends fills wind instruction, and electromagnetism valve events make pressure air be filled with checking cylinder, checking cylinder
Piston rod promotes connecting plate, load transducer and bearing beam to be moved upward to stop nut, reaches setting stroke, air pressure sensing
Device detection braking cylinder pressure simultaneously feeds back to PLC control system, and PLC control system is sent out after brake-cylinder pressure rises to rated pressure
Go out pressurize instruction, electromagnetism valve events make brake-cylinder pressure in steady state, now operate UCAM static datas Acquisition Instrument to gather,
Record checking cylinder output force data；
When integrated checking cylinder fatigue test is carried out, test bed testing system is removed, replace load to pass with a connecting rod
Sensor is connected with bearing beam, connecting plate, and testing stand miscellaneous part is constant.Wind regime compressed air Jing pressure limiting valve is adjusted to specified pressure
Testing stand is filled with after power, PLC control system sends fills wind instruction, and electromagnetism valve events make pressure air be filled with checking cylinder, checking cylinder
Piston rod promotes connecting plate, connecting rod and bearing beam to be moved upward to stop nut, reaches setting stroke, baroceptor inspection
Survey brake-cylinder pressure and feed back to PLC control system, PLC control system sends row after brake-cylinder pressure rises to rated pressure
Wind instruct, electromagnetism valve events make brake-cylinder pressure air discharge, when brake-cylinder pressure drops to it is minimum after PLC control system count
1 time and send and fill wind instruction, the above-mentioned action of repetition, until the test number (TN) that fatigue test specifies.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (12)
1. the test device of the integrated checking cylinder of a kind of railway freight-car, it is characterised in that include：
Supporting table (10), the integrated checking cylinder (20) of railway freight-car to be tested is arranged in the supporting table (10)；
Source of the gas (30) and air-supply pipeline (40), the source of the gas (30) is by air-supply pipeline (40) and the railway to be tested
The integrated checking cylinder of lorry (20) connects；
Valving (50), the valving (50) is with making the source of the gas (30) with the integrated system of the railway freight-car to be tested
The first operating position that dynamic cylinder (20) passes through air-supply pipeline (40) connection, the valving (50) also has makes described treating
The second operating position that the integrated checking cylinder (20) of test railway freight-car is in communication with the outside；
Control device (60), the control device (60) electrically connects with the valving (50).
2. test device according to claim 1, it is characterised in that the test device also includes：
Lead column (70), is arranged in the supporting table (10)；
Pressing plate (80), is provided with pilot hole (81) on the pressing plate (80), the lead column (70) is located in the pilot hole
(81) in, the push rod (21) and the pressing plate (80) of the integrated checking cylinder (20) of the railway freight-car to be tested coordinate.
3. test device according to claim 2, it is characterised in that the lead column (70) is two, the pilot hole
(81) it is two, two pilot holes (81) are separately positioned on the both sides of the pressing plate (80), two lead columns (70)
It is located in respectively in two pilot holes (81).
4. test device according to claim 2, it is characterised in that the test device also includes being arranged on the guiding
Position limiting structure (90) on post (70), the position limiting structure (90) limits shifting of the pressing plate (80) in the lead column (70)
Dynamic position.
5. test device according to claim 4, it is characterised in that the position limiting structure (90) is stop nut, described
Stop nut is set in the lead column (70) outward.
6. test device according to claim 2, the test device also includes load transducer (110), the load
One end of sensor (110) is connected with the pressing plate (80), the other end and the push rod (21) of the load transducer (110)
Connection, the control device (60) electrically connects with the load transducer (110).
7. test device according to claim 6, it is characterised in that the test device also includes being set in the push rod
(21) connecting rod (100) outward, the connecting rod (100) is connected with the load transducer (110).
8. test device according to claim 1, it is characterised in that the test device also includes being arranged on the air-supply
Baroceptor (120) on pipeline (40).
9. test device according to claim 1, it is characterised in that the test device also includes being arranged on the air-supply
Pressure limiting valve (130) on pipeline (40), the pressure limiting valve (130) positioned at the valving (50) and the source of the gas (30) it
Between.
10. test device according to claim 1, it is characterised in that the valving (50) is described including being arranged on
Reversal valve in air-supply pipeline (40).
The fatigue test method of the integrated checking cylinder of 11. a kind of railway freight-cars, it is characterised in that the fatigue test method includes：
Step S1, makes valving (50) in the first operating position so that source of the gas (30) connects and make to treat with air-supply pipeline (40)
Integrated checking cylinder (20) braking of test railway freight-car；
Step S2, when the pressure that baroceptor (120) is detected reaches predetermined value, control device (60) is counted；
Step S3, makes valving (50) in the second operating position so that the air-supply pipeline (40) is in communication with the outside and makes institute
State the integrated checking cylinder of railway freight-car to be tested (20) alleviation；
Step S4, repeat step S1 to S3, the counting for making the control device (60) reaches pre-determined number.
A kind of power output test method of the integrated checking cylinder of 12. railway freight-cars, it is characterised in that the power output test method bag
Include：
Step A1, makes valving (50) in the first operating position so that source of the gas (30) connects and make to treat with air-supply pipeline (40)
Integrated checking cylinder (20) braking of test railway freight-car；
Step A2, when the pressure that baroceptor (120) is detected reaches predetermined value, control device (60) obtains load transducer
(110) detection numerical value；
Step A3, makes valving (50) in the second operating position so that the air-supply pipeline (40) is in communication with the outside and makes institute
State the integrated checking cylinder of railway freight-car to be tested (20) alleviation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611041462.3A CN106644530A (en) | 2016-11-23 | 2016-11-23 | Test apparatus, fatigued test method and output force test method of railway freight car integrated brake cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611041462.3A CN106644530A (en) | 2016-11-23 | 2016-11-23 | Test apparatus, fatigued test method and output force test method of railway freight car integrated brake cylinder |
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| CN106644530A true CN106644530A (en) | 2017-05-10 |
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ID=58811579
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| CN201611041462.3A Pending CN106644530A (en) | 2016-11-23 | 2016-11-23 | Test apparatus, fatigued test method and output force test method of railway freight car integrated brake cylinder |
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