CN107271206B - Load run-in test equipment, load test method and running-in test method - Google Patents
Load run-in test equipment, load test method and running-in test method Download PDFInfo
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- CN107271206B CN107271206B CN201710449133.0A CN201710449133A CN107271206B CN 107271206 B CN107271206 B CN 107271206B CN 201710449133 A CN201710449133 A CN 201710449133A CN 107271206 B CN107271206 B CN 107271206B
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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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Abstract
The invention belongs to Transit Equipment technical fields, and in particular to a kind of load run-in test equipment, load test method and running-in test method.Load run-in test equipment of the present invention, including loading device, running in machine, lifting device, support platform and bottom platform, loading device is set in bottom platform, the top of loading device can be connected by connecting component with the bottom of bogie, running in machine includes the identical two parts of structure size, two parts are respectively arranged on the two sides of loading device and are fixed in support platform, and lifting device is set in bottom platform, and support platform is connected at the top of lifting device.By using load run-in test equipment, load test method and running-in test method of the present invention, load test and run-in test effectively can be carried out to monorail train bogie, determine whether bogie can be eliminated security risk in test with entrucking to greatest extent by test result.
Description
Technical field
The invention belongs to Transit Equipment technical fields, and in particular to a kind of load run-in test equipment, load test
Method and running-in test method.
Background technique
Develop with advances in technology, people there are more cognitions to hanging type aerial train.In practical applications, it hangs
The bogie of hanging monorail train needs to test its various performance parameters before practical entrucking, and is pushed away by test data
Breaking, whether it can carry out loading operation.Such as need to carry out hanging type aerial train bogie actual negative reloading test,
Vertical backstop is measured at a distance from interorbital, whether can be operated normally in the process with determining that bogie is re-run in actual negative.
For another example run-in test is carried out to hanging type aerial train bogie, by measuring all parts at the appointed time
Temperature rise value, to determine whether the temperature rise value of its all parts in actual moving process belongs in normal range (NR), and can protect
Card operates normally.
By a series of tests to hanging type aerial train bogie, and required data are obtained, it is final to determine to turn to
Frame can be with entrucking, and determine whether to deposit defect in design, security risk eliminated to greatest extent and was being tested
Cheng Zhong.
Summary of the invention
The purpose of the present invention is to solve at least one above-mentioned problem, which is by the following technical programs
It realizes.
The present invention provides a kind of load run-in test equipment, including loading device, running in machine, lifting device,
Support platform and bottom platform, the loading device are set in the bottom platform, and the top of the loading device can pass through
Connecting component is connected with the bottom of bogie, and the loading device can be used for by stretching the bottom of the bogie to described
Bogie carries out downward load test, and the running in machine includes the identical two parts of structure size, described two parts point
Not She Yu the loading device two sides and be fixed in the support platform, the lifting device be set to the bottom platform
On, and the support platform is connected at the top of the lifting device, the lifting by controlling the lifting device is able to ascend
And/or the height of the running in machine is reduced, so as to carry out run-in test to the bogie.
Further, the connecting component include attachment base at the top of the loading device and with the attachment base phase
The connection pin shaft of mating connection, the attachment base are equipped with through-hole, by the bottom that the connection pin shaft is passed through to the bogie
The bogie is connected by portion with the through-hole on the attachment base with the loading device.
Further, the connecting component further includes the middle part jockey for being sequentially connected setting, the first connector and
Two connectors, and be equipped with the pulling force that generates during for downward load test below the middle part jockey and carry out
The top of the pressure sensor of detection, the middle part jockey is connected with the bottom of the attachment base, second connection
It is connected at the top of the bottom of head and the loading device, wherein the middle part jockey includes being capable of shape matching connection
The first connector and the second connector, be bolted connection between first connector and second connector,
Second connector can be inserted into the inside of first connector in such a way that shape is matched, and described by being each passed through
The ontology of first connector is connected with the fixed pin shaft of the ontology of second connector.
It further, further include loading device support base and support slide, the loading device support base is set to the bottom
On portion's platform, sliding rail is equipped on the inside of the top two of the loading device support base, the support slide is set to the pressure sensing
Between device and first connector, the two sides of the support slide are equipped with sliding block that can be in mating connection with the sliding rail,
The elevating movement that can be realized the support slide is moved up and down on the sliding rail by the sliding block.
Further, the running in machine includes speed reducer, active running-in wheel, driven race in the support platform
It closes wheel and analog orbit, the speed reducer is connected by way of V belt translation with the active running-in wheel, the active running-in wheel
The bogie is driven to be rotated on the analog orbit, the driven running-in wheel rotates with the bogie and turned
It is dynamic.
Further, the lifting device includes axle box support lifting cylinder and support platform lifting cylinder, the axle box
Lifting cylinder is supported to be set to the lower section of the analog orbit, the support platform lifting cylinder is set to the speed reducer and the master
The lower section of any position between dynamic running-in wheel.
Further, the loading device is load cylinder.
Bogie performance test is carried out using load run-in test equipment as described above the invention also provides a kind of
Load test method, including following steps:
Equipment is powered: the loading device opens operating mode；
Connect the bogie: the top by the bottom of the bogie by the connecting component and the loading device
It is connected, and falls into the bogie wheel in the running in machine；
It loads and tests: starting the loading device, the loading device loads downwards the bogie, works as pressure
Power stops load when reaching 100KN, and measures to the vertical stopper height of the bogie and walking safety backstop height.
Bogie performance test is carried out using load run-in test equipment as described above the invention also provides a kind of
Running-in test method, including following steps:
Connect the bogie: the top by the bottom of the bogie by the connecting component and the loading device
It is connected, and falls into the bogie wheel in the running in machine；
It completes docking for the running in machine and the bogie: by increasing the lifting device and loading device, making
The running in machine is in contact with the wheel of the bogie, and the running in machine is made to reach running-in state；
Running-in is simultaneously tested: start the running in machine, in runing condensation procedure to input shaft bearing temperature rise, intermediate bearing temperature rise,
Output bearing temperature rise and oil temperature temperature rise measure.
Further, complete the running in machine with the process of the bogie docked the following steps are included:
It promotes the axle box support lifting cylinder and the load cylinder: increasing the axle box support lifting cylinder, work as institute
It states after axle box support lifting cylinder contact with the bottom of the support platform, the load cylinder goes up and down oily with axle box support
Cylinder rises jointly, until axle box support lifting cylinder reaches full stroke, the load cylinder and axle box support lifting
Oil cylinder stops rising；
Promote the support platform lifting cylinder: after the axle box support lifting cylinder reaches full stroke, the support is flat
Platform lifting cylinder is begun to ramp up, until the active running-in wheel stops rising through after contacting with the bogie wheel uses this
Invention load run-in test equipment, load test method and the running-in test method, can be effectively to hanging type aerial
Train bogie carries out load test and run-in test, determines whether bogie can be with entrucking by test result, will be safe hidden
Suffer from and eliminating in test to greatest extent.
Corresponding load, the practical fortune of simulated hanging formula monorail train bogie are provided to the bogie by load cylinder
Suffered actual loaded power in row, and corresponding vertical stopper height and walking safety backstop height are measured, determine its peace
Quan Xing.
Running-in speed in simulated hanging formula monorail train bogie actual motion, and in runing condensation procedure, automatic measurement
Input shaft bearing temperature rise, intermediate bearing temperature rise, output bearing temperature rise and oil temperature temperature rise, improve the accuracy of measurement.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is the overall structure diagram of the embodiment of the present invention；
Fig. 2 is the axonometric drawing of embodiment in Fig. 1；
Fig. 3 is the structural schematic diagram of loading device embodiment；
Fig. 4 is the flow chart that load test is carried out using the embodiment of the present invention；
Fig. 5 is the flow chart that running-in test is carried out using the embodiment of the present invention.
Respectively label is expressed as follows in attached drawing:
10: loading device, 11: loading device support base, 12: support slide, 13: sliding rail,
14: sliding block；
20: running in machine, 21: speed reducer, 22: active running-in wheel, 23: driven running-in wheel；
24: analog orbit；
30: lifting device, 31: axle box supports lifting cylinder, 32: support platform lifting cylinder；
40: support platform；
50: base platform；
60: connecting component, 61: attachment base, 62: connection pin shaft, 63: middle part jockey,
64: pressure sensor, 65: the first connectors, 66: the second connectors, 67: fixed pin shaft；
70: bogie.
Specific embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing this public affairs in attached drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.It is to be able to thoroughly understand the disclosure on the contrary, providing these embodiments, and can be by this public affairs
The range opened is fully disclosed to those skilled in the art.
Fig. 1 is the overall structure diagram of the embodiment of the present invention.Fig. 2 is the axonometric drawing of embodiment in Fig. 1.Fig. 3 is load
The structural schematic diagram of Installation practice.As shown, load run-in test equipment of the present invention, including loading device 10,
Running in machine 20, lifting device 30, support platform 40 and bottom platform 50, loading device 10 are set in bottom platform 50, load
The top of device 10 can be connected by connecting component 60 with the bottom of bogie 70, and loading device 10 can be turned to by stretching
The bottom of frame 70 is used to carry out bogie 70 downward load test, and running in machine 20 includes structure size identical two
Point, two parts are respectively arranged on the two sides of loading device 10 and are fixed in support platform 40, and lifting device 30 is flat set on bottom
On platform 50, and the top of lifting device 30 is connected to support platform 40, by control lifting device 30 lifting be able to ascend and/
Or the height of running in machine 20 is reduced, so as to carry out run-in test to bogie 70.
In the present embodiment, loading device 10 is load cylinder.When needing to carry out load test to bogie, pass through connection
The lower part of bogie 70 is connected by component 60 with load cylinder.Bogie 70 is provided downwards by the retracting action of load cylinder
Loaded load, while measure vertical stopper height and walking safety backstop height, reach test purpose.
When needing to carry out running-in test to bogie 70, axle box support lifting cylinder 31 and support platform lifting oil are promoted
Cylinder 32 makes running in machine 20 and 70 wheel of bogie be in contact, thus allows for the run-in test of bogie 70, meanwhile, it runs
Setting multiple temperature sensors in the axle box equipotential place of setting are installed in bogie 70 during conjunction, for measure input shaft bearing temperature rise, in
Between bearing temperature rise, output bearing temperature rise and oil temperature temperature rise.
It, can be effectively to hanging type aerial train bogie by using load run-in test equipment of the present invention
Load test and run-in test are carried out, determines whether bogie can be with entrucking, to greatest extent by security risk by test result
Elimination in test.
In the present embodiment, connecting component 60 includes the attachment base 61 being set at the top of loading device and matches with attachment base 61
The connection pin shaft 62 of connection, attachment base 61 are equipped with through-hole, by that will connect bottom and connection of the pin shaft 62 across bogie 70
Bogie 70 is connected by the through-hole on seat 61 with loading device 10.
Connection pin shaft 62 should have enough intensity, guarantee that load cylinder completes the loading procedure to bogie 70.Connection
Pin shaft 62 is equipped with stub end and small head end, and small head end is equipped with screw thread, by the way that stub end to be resisted against outside the lower part of bogie 70
Surface, small head end is by passing through the lower part of attachment base 61 and bogie 70 and matching with the nut for being set to 70 outer surface of bogie
It closes, the lower part of attachment base 61 and bogie 70 is connected and fixed.
In the present embodiment, connecting component 60 further includes the middle part jockey 63 for being sequentially connected setting, the first connector 65
With the second connector 66, and the pulling force that generates during for downward load test is equipped with below middle part jockey 63
The top of the pressure sensor 64 detected, middle part jockey 63 is connected with the bottom of attachment base 61, the second connector
66 bottom is connected with the top of loading device 10, wherein middle part jockey 63 includes be capable of shape matching connection the
A connection piece and the second connector, are bolted connection between the first connector and the second connector, the second connector 66
The inside of the first connector 65, and the ontology and second by passing through the first connector 65 can be inserted into such a way that shape is matched
The fixed pin shaft 67 of the ontology of connector 66 is connected.
It further, further include loading device in the present embodiment in order to keep the stability in load cylinder loading procedure
Support base 11 and support slide 12, loading device support base 11 are set in bottom platform 50, the top of loading device support base 11
Two insides are equipped with sliding rail 13, and support slide 12 is set between pressure sensor 64 and the first connector 65, and the two of support slide 12
Side is equipped with sliding block 14 that can be in mating connection with sliding rail 13, and support slide 12 carries out moving up and down on sliding rail 13 by sliding block 14
It is dynamic to complete elevating movement.
When load cylinder moves up and down, support slide 12 is by sliding of the sliding block 14 on sliding rail 13 with load cylinder
It is completed at the same time elevating movement, and controls the movement line of load cylinder, prevents load cylinder during loading due to load
It is excessive and destroy correctly lifting route.
In the present embodiment, running in machine 20 include speed reducer 21 in the support platform 40, active running-in wheel 22, from
Dynamic running-in wheel 23 and analog orbit 24, speed reducer 21 are connected by way of V belt translation with active running-in wheel 22, active running-in wheel
22 drive bogies 70 are rotated on analog orbit 24, and driven running-in wheel 23 is rotated with bogie 70 and rotated.
After the completion of the lower part of bogie 70 is connect with load cylinder, the wheel of bogie 70 is fallen into running in machine 20.
Lifting cylinder 31 and support platform lifting cylinder 32 are supported by promoting axle box, completes 70 wheel of bogie and active running-in wheel 22
Docking, drive active running-in wheel 22 to rotate by speed reducer 21, so that 70 wheel of bogie be made to rotate, complete running-in examination
It tests.
In the present embodiment, speed reducer 21 uses Worm Wheel System, and stability is reliable, and running-in wheel uses polyurethane friction
Wheel has preferable frictional force when can guarantee to contact with 70 wheel of bogie, and in order to improve safety, sets at V belt translation
There is shield to avoid the occurrence of safety accident
In the present embodiment, lifting device 30 includes axle box support lifting cylinder 31 and support platform lifting cylinder 32, axle box
Lifting cylinder 31 is supported to be set to the lower section of analog orbit 24, support platform lifting cylinder 32 is set to speed reducer 21 and active running-in wheel
The lower section of any position between 22.
Lifting cylinder 31 is supported by promoting axle box, the height of the axle box of bogie 70 can be increased, then by promoting branch
Platform lifting cylinder 32 is supportted, the wheel of active running-in wheel 22 and bogie 70 is in contact, is driven and is turned to by active running-in wheel 22
70 wheel common rotation of frame completes run-in test.
Fig. 4 is the flow chart that load test is carried out using the embodiment of the present invention, as shown in the figure.Using described in the present embodiment
Load the load test method that run-in test equipment carries out bogie performance test, comprising the following steps:
Equipment is powered: loading device 10 opens operating mode.
Connection bogie 70: the bottom of bogie 70 is connected by connecting component 60 with the top of loading device 10, is turned
It is fallen into running in machine 20 to 70 wheel of frame.
Pin shaft 62 will be connected and pass through the bottom of bogie 70 and the through-hole of attachment base 61, and use nut check.Promote load
Oil cylinder, locking middle part jockey 63, is fixedly connected with bogie 70 with load cylinder.
Load and test: start-up loading device 10, loading device 10 load downwards bogie 70, when pressure reaches
Stop load when 100KN, and the vertical stopper height of bogie 70 and walking safety backstop height are measured.
After the completion of connection, load cylinder bounces back downwards, and is supplied to the downward load of bogie 70.When load cylinder provides
Load when reaching 100KN, stop motion.At this point, utilizing the vertical stopper height and row of digital display height gauge measurement bogie 70
Safety backstop height is walked, and is analyzed according to measurement result, determines whether bogie 70 can normally be transported in actual load
Row.
Fig. 5 is the flow chart that running-in test is carried out using the embodiment of the present invention, as shown, using described in the present embodiment
Load the running-in test method that run-in test equipment carries out bogie performance test, comprising the following steps:
Connection bogie 70: the bottom of bogie 70 is connected by connecting component 60 with the top of loading device 10, is turned
It is fallen into running in machine 20 to 70 wheel of frame.
Completion running in machine 20 is docked with bogie 70: by increasing lifting device 30 and loading device 10, making running-in
Device 20 is in contact with the wheel of bogie 70, and running in machine 20 is made to reach running-in state.
Specifically, complete running in machine 20 with the process of bogie 70 docked the following steps are included:
It promotes axle box support lifting cylinder 31 and load cylinder: increasing axle box and support lifting cylinder 31, risen when axle box supports
After drop oil cylinder 31 is contacted with the bottom of support platform 40, load cylinder rises jointly with axle box support lifting cylinder 31, until axis
Case support lifting cylinder 31 reaches full stroke, and load cylinder and axle box support lifting cylinder 31 stop rising.
Axle box support lifting cylinder 31 is risen into 20mm, connects axle box support lifting cylinder 31 and the bottom of support platform 40
After touch, then by axle box it supports lifting cylinder 31 and load cylinder to increase 20mm jointly, axle box support lifting cylinder 31 is made to reach full
Stroke.Then side holding device is installed in the both sides of bogie 70, using side holding device to the longitudinal direction of bogie 70
Direction is fixed, and prevents bogie 70 from toppling over along the longitudinal direction in running-in.
In the present embodiment, the full stroke of load cylinder, axle box support lifting cylinder 31 and support platform lifting cylinder 32 is equal
For 40mm.
Promote support platform lifting cylinder 32: after axle box support lifting cylinder 31 reaches full stroke, support platform lifting oil
Cylinder 32 is begun to ramp up, until active running-in wheel 22 stops rising after contacting with 70 wheel of bogie.By rotating active running-in wheel
22 drive bogie 70 to complete run-in test.
Running-in is simultaneously tested: starting running in machine 20, to input shaft bearing temperature rise, intermediate bearing temperature rise, defeated in runing condensation procedure
Bearing temperature rise and oil temperature temperature rise measure out.
When multiple sensor modules are arranged in the installation axle box equipotential place of setting of bogie 70, are used to automatic measurement run-in test
Input shaft bearing temperature rise, intermediate bearing temperature rise, output bearing temperature rise and oil temperature temperature rise, improve the accuracy of measurement.
It, can by using load run-in test equipment, load test method and running-in test method of the present invention
Load test and run-in test effectively are carried out to hanging type aerial train bogie, whether bogie is determined by test result
Security risk can be eliminated in test to greatest extent with entrucking.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Subject to enclosing.
Claims (10)
1. a kind of load run-in test equipment, which is characterized in that including loading device, running in machine, lifting device, support platform
And bottom platform, the loading device are set in the bottom platform, the top of the loading device can pass through connecting component
Be connected with the bottom of bogie, the loading device can be used for by stretching the bottom of the bogie to the bogie into
The downward load test of row, the running in machine includes the identical two parts of structure size, and described two parts are respectively arranged on institute
It states the two sides of loading device and is fixed in the support platform, the lifting device is set in the bottom platform, and institute
It states and is connected to the support platform at the top of lifting device, the lifting by controlling the lifting device is able to ascend and/or drops
The height of the low running in machine, so as to carry out run-in test to the bogie.
2. load run-in test equipment according to claim 1, which is characterized in that the connecting component includes set on described
Attachment base and the connection pin shaft in mating connection with the attachment base at the top of loading device, the attachment base are equipped with through-hole,
By the way that the connection pin shaft is passed through the through-hole on the bottom and the attachment base of the bogie for the bogie and described
Loading device is connected.
3. load run-in test equipment according to claim 2, which is characterized in that the connecting component further includes successively connecting
The middle part jockey, the first connector and the second connector of setting are connect, and is equipped with and uses below the middle part jockey
In the pressure sensor detected to the pulling force generated during downward load test, the top of the middle part jockey with
The bottom of the attachment base is connected, and is connected at the top of the bottom of second connector and the loading device, wherein institute
Stating middle part jockey includes the first connector and the second connector for capableing of shape matching connection, first connector and institute
It states and is bolted connection between the second connector, second connector can be inserted into described in such a way that shape is matched
The inside of one connector, and the fixation of the ontology of the ontology by being each passed through first connector and second connector
Pin shaft is connected.
4. load run-in test equipment according to claim 3, which is characterized in that further include loading device support base and branch
Slide is supportted, the loading device support base is set in the bottom platform, sets on the inside of the top two of the loading device support base
There is sliding rail, the support slide is set between the pressure sensor and first connector, the two sides of the support slide
Equipped with sliding block that can be in mating connection with the sliding rail, being moved up and down on the sliding rail by the sliding block can be real
The elevating movement of the existing support slide.
5. load run-in test equipment described in any one of -4 according to claim 1, which is characterized in that the running in machine packet
It includes the speed reducer being set in the support platform, active running-in wheel, driven running-in wheel and analog orbit, the speed reducer and passes through band
The mode of transmission is connected with the active running-in wheel, and the active running-in wheel drives the bogie enterprising in the analog orbit
Row rotation, the driven running-in wheel are rotated with the bogie and are rotated.
6. load run-in test equipment according to claim 5, which is characterized in that the lifting device includes axle box support
Lifting cylinder and support platform lifting cylinder, the axle box support lifting cylinder are set to the lower section of the analog orbit, the branch
Support the lower section that platform lifting cylinder is set to any position between the speed reducer and the active running-in wheel.
7. load run-in test equipment according to claim 6, which is characterized in that the loading device is load cylinder.
8. a kind of carry out bogie performance test using load run-in test equipment described in any one of the claims 1-7
Load test method, which comprises the following steps:
Equipment is powered: the loading device opens operating mode；
Connect the bogie: the top phase by the bottom of the bogie by the connecting component and the loading device
Even, and fall into the bogie wheel in the running in machine；
It loads and tests: starting the loading device, the loading device loads downwards the bogie, when pressure reaches
Stop load when to 100KN, and the vertical stopper height of the bogie and walking safety backstop height are measured.
9. a kind of tested using the running-in that load run-in test equipment carries out bogie performance test described in the claims 7
Method, which comprises the following steps:
Connect the bogie: the top phase by the bottom of the bogie by the connecting component and the loading device
Even, and fall into the bogie wheel in the running in machine；
It completes docking for the running in machine and the bogie: by increasing the lifting device and loading device, making described
Running in machine is in contact with the wheel of the bogie, and the running in machine is made to reach running-in state；
Running-in is simultaneously tested: starting the running in machine, to input shaft bearing temperature rise, intermediate bearing temperature rise, output in runing condensation procedure
Bearing temperature rise and oil temperature temperature rise measure.
10. running-in test method according to claim 9, which is characterized in that complete the running in machine and the steering
The process of the docking of frame the following steps are included:
It promotes the axle box support lifting cylinder and the load cylinder: the axle box support lifting cylinder is increased, when the axis
After case support lifting cylinder is contacted with the bottom of the support platform, the load cylinder is total with axle box support lifting cylinder
With rising, until axle box support lifting cylinder reaches full stroke, the load cylinder and the axle box support lifting cylinder
Stop rising；
Promote the support platform lifting cylinder: after the axle box support lifting cylinder reaches full stroke, the support platform liter
Drop oil cylinder is begun to ramp up, until the active running-in wheel stops rising after contacting with the bogie wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710449133.0A CN107271206B (en) | 2017-06-14 | 2017-06-14 | Load run-in test equipment, load test method and running-in test method |
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| CN201710449133.0A CN107271206B (en) | 2017-06-14 | 2017-06-14 | Load run-in test equipment, load test method and running-in test method |
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| CN107271206B true CN107271206B (en) | 2019-05-14 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108982129A (en) * | 2018-07-19 | 2018-12-11 | 中车青岛四方机车车辆股份有限公司 | A kind of experimental rig of hanging bogie |
| CN109489901A (en) * | 2018-11-22 | 2019-03-19 | 北京航天计量测试技术研究所 | A kind of online quality center of mass measuring table in assembly docking scene |
| CN110919239B (en) * | 2019-12-05 | 2021-06-22 | 中车长春轨道客车股份有限公司 | Automatic assembly quality that falls of bogie |
| CN113484043B (en) * | 2021-07-07 | 2022-11-22 | 中车唐山机车车辆有限公司 | Vertical force measuring system and force measuring wheel set calibration test bed |
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| CN107271206A (en) | 2017-10-20 |
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