CN116534078A - Air rail transport vehicle and wheel replacement overhauling process - Google Patents
Air rail transport vehicle and wheel replacement overhauling process Download PDFInfo
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- CN116534078A CN116534078A CN202310596948.7A CN202310596948A CN116534078A CN 116534078 A CN116534078 A CN 116534078A CN 202310596948 A CN202310596948 A CN 202310596948A CN 116534078 A CN116534078 A CN 116534078A
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000008569 process Effects 0.000 title claims abstract description 30
- 238000001514 detection method Methods 0.000 claims abstract description 47
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 description 17
- 238000005299 abrasion Methods 0.000 description 9
- 238000007689 inspection Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 241001272996 Polyphylla fullo Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 238000013102 re-test Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K13/00—Other auxiliaries or accessories for railways
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B29/00—Apparatus or tools for mounting or dismounting wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S5/00—Servicing, maintaining, repairing, or refitting of vehicles
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- Engineering & Computer Science (AREA)
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- Warehouses Or Storage Devices (AREA)
Abstract
The invention discloses an air rail transport vehicle and a wheel changing overhauling process. Judging whether the wheels of the air rail transport vehicle meet replacement conditions or not, wherein the replacement conditions comprise running mileage or running time or wheel set on-line detection states; if yes, carrying out power-off operation on the air rail transport vehicle; after the frame of the overhead rail transport vehicle is lifted by the lifting device on the rotation station, the frame is separated from the bogie; hoisting the bogie on the track to a ground operation table by a hoisting device at the end of the warehouse wire; removing old wheels on the bogie and replacing new wheels; hoisting a bogie for replacing wheels to a track; and lifting the frame to the lower part of the bogie, aligning the pin holes of the frame with the pin holes of the bogie, and inserting the connecting pin shafts into the pin holes of the frame and the pin holes of the bogie. Therefore, the wheel changing and overhauling process flow of the air rail transport vehicle can be clarified, overhauling basis and method are provided for overhauling staff, and overhauling efficiency and service life of the vehicle are effectively improved.
Description
Technical Field
The invention relates to the technical field of train overhaul, in particular to an overhead rail transport vehicle and a wheel changing overhaul process.
Background
The wheels are important parts for running the vehicle, bear the main weight of the vehicle, are in a high-speed running state in the running process, and work repeatedly for a long time, so that faults are necessarily caused. The vehicle is greatly restricted when faults occur, and the vehicle is stopped when serious faults occur, so that the transportation efficiency is affected. In this regard, transportation enterprises must actively enhance repair and maintenance of vehicles, and continuously improve safety and stability of vehicles.
As a novel transportation mode, the air rail transport vehicle has great differences with the traditional railway freight car and urban subway vehicles in traction power supply modes and the like due to the bogie structure of the vehicle, and cannot adopt the existing repair process repair and overhaul modes.
Disclosure of Invention
In view of the above problems, the invention provides the air rail transport vehicle and the wheel changing maintenance process, so that the air rail transport vehicle completes the wheel set changing maintenance work of the vehicle within a certain running mileage or running time, the use efficiency of the vehicle is improved, and technical support is provided for the operation maintenance of the air rail transport vehicle.
According to a first aspect of the invention, there is provided an air rail transport vehicle wheel changing maintenance process comprising:
judging whether wheels of the air rail transport vehicle meet replacement conditions or not, wherein the replacement conditions comprise running mileage or running time or wheel set on-line detection states;
if yes, carrying out power-off operation on the air rail transport vehicle;
after the frame of the overhead rail transport vehicle is lifted by the lifting device on the rotation station, the frame is separated from the bogie;
hoisting the bogie on the track to a ground operation table by a hoisting device at the end of the warehouse wire;
removing old wheels on the bogie and replacing new wheels;
hoisting a bogie for replacing wheels to a track;
and lifting the bogie to the lower part of the bogie, aligning the pin holes of the frame with the pin holes of the bogie, and inserting the connecting pin shafts into the pin holes of the frame and the pin holes of the bogie.
Optionally, the lifting device on the alternate station lifts the frame of the aerial rail transport vehicle, including:
the lifting device on the wheel changing station is connected with 4 hanging strips, and the 4 hanging strips are connected with the lifting hooks of 4 lifting points of the frame;
operating the lifting device to enable each sling to be in a stressed pre-tightening state;
the lifting device is synchronously started to enable the frame to ascend.
Optionally, the frame is separated from the bogie, comprising:
and removing the connecting pin shaft between the bogie and the frame.
Optionally, the same marks are respectively made on the detached connecting pin shafts and the corresponding frames.
Optionally, before the hoisting device at the end of the storage wire hoisting the bogie on the track to the ground console, the method further comprises:
the truck is moved to the end of the line by hand or by a winch.
Optionally, before the air rail transport vehicle performs the power-off operation, the method further includes:
after the air rail transport vehicle enters a warehouse and stops, a protective guard with a preset range is pulled up on the ground below the air rail transport vehicle, and an overhaul warning sign is set.
Optionally, the method further comprises:
operating the lifting device to descend until the hanging strip is completely loosened, and removing the hanging strip from the frame;
and returning the lifting device to the initial position, and turning off the power supply of the lifting device.
Optionally, determining whether the wheel of the air rail transport vehicle meets the replacement condition includes:
if the running mileage of the air rail transport vehicle is more than 240 ten thousand kilometers, the wheels meet the replacement condition;
or if the running time of the air rail transport vehicle is longer than 8 years, the wheels meet the replacement condition;
or if the wheel of the air rail transport vehicle exceeds the detection limit value during the on-line detection of the wheel set, the wheel meets the replacement condition.
Optionally, the wheel set on-line detection of the wheel comprises wheel diameter detection, wheel abrasion detection, rim height detection, rim thickness detection and wheel tread circumference abrasion detection.
According to a second aspect of the present invention there is provided an air rail vehicle comprising a vehicle body adapted for use in the foregoing air rail vehicle wheel change service process.
The above-mentioned one or more technical solutions in the embodiments of the present disclosure at least have the following technical effects:
the embodiment of the specification provides an air rail transport vehicle and wheel replacement overhauling process. Judging whether the wheels of the air rail transport vehicle meet replacement conditions or not, wherein the replacement conditions comprise running mileage or running time or wheel set on-line detection states; if yes, carrying out power-off operation on the air rail transport vehicle; after the frame of the overhead rail transport vehicle is lifted by the lifting device on the rotation station, the frame is separated from the bogie; hoisting the bogie on the track to a ground operation table by a hoisting device at the end of the warehouse wire; removing old wheels on the bogie and replacing new wheels; hoisting a bogie for replacing wheels to a track; and lifting the bogie to the lower part of the bogie, aligning the pin holes of the frame with the pin holes of the bogie, and inserting the connecting pin shafts into the pin holes of the frame and the pin holes of the bogie. Therefore, the wheel changing and overhauling process flow of the air rail transport vehicle can be clarified, overhauling basis and method are provided for overhauling staff, and overhauling efficiency and service life of the vehicle are effectively improved.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present invention more readily apparent.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also throughout the drawings, like reference numerals are used to designate like parts.
In the drawings:
fig. 1 shows a flow chart of an air rail transport vehicle wheel changing maintenance process in an embodiment of the invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, a process for overhauling a wheel of an air rail wagon will be specifically described, and the overhauling process includes steps 101 to 107:
step 101: judging whether wheels of the air rail transport vehicle meet replacement conditions or not, wherein the replacement conditions comprise running mileage or running time or wheel set on-line detection states;
the air rail transportation is also called as an air rail or a cloud rail, and is different from a traditional subway train and a high-speed railway train, a bogie on the upper part of the air rail transportation vehicle is arranged in a rail beam of an open box type, and the transportation vehicle is suspended below the rail beam to run.
After the air rail transport vehicle is put into operation, the transport vehicle needs to keep a good state, and the wheels of the transport vehicle can be overhauled regularly, such as daily inspection, double-week inspection, monthly inspection and the like. In the using process of the wheels, abrasion damage is inevitably caused, and the operation of the transport vehicle can be influenced when the degree is serious. Therefore, the wheel needs to be replaced when necessary.
When the wheel is replaced, it is necessary to determine whether the wheel satisfies the replacement condition. The replacement condition includes a running mileage or running time or wheel set on-line detection status. For example, if the operating mileage is greater than the preset mileage, a new wheel is replaced; or if the running time is longer than the preset time, replacing the new wheel; or, the running mileage and the running time do not exceed the preset values, but when the wheel set is detected online, a certain detection parameter exceeds the limit value, and the wheel still needs to be replaced.
Specifically, judging whether the wheel of the air rail transport vehicle satisfies the replacement condition includes:
if the running mileage of the air rail transport vehicle is more than 240 ten thousand kilometers, the wheels meet the replacement condition;
or if the running time of the air rail transport vehicle is longer than 8 years, the wheels meet the replacement condition;
or if the wheel of the air rail transport vehicle exceeds the detection limit value during the on-line detection of the wheel set, the wheel meets the replacement condition.
The wheel set online detection of the wheels can comprise wheel diameter detection, wheel abrasion detection, wheel rim height detection, wheel rim thickness detection and wheel tread circumference abrasion detection, and different wheel sets have different online detection contents and corresponding limit values.
In carrying out the above wheel set on-line detection, it is possible to operate by means of a wheel set dynamic detection system, which is typically installed on a warehouse line or a car wash line. The wheel set dynamic detection system consists of three subsystems, namely a wheel on-line automatic flaw detection system, a wheel outline dimension detection system and a wheel tread scratch detection system. The wheel outline dimension detection system adopts an optical cut image measurement technology, a laser line is projected onto a wheel tread to be measured, a CCD high-speed camera triggers a laser wheel passing line image of the wheel tread to be snap shot under the action of a wheel sensor, and a three-dimensional image of a certain section of a wheel set is restored through software algorithms such as image acquisition, image processing, three-dimensional reconstruction, image splicing and the like, so that the measurement of the wheel set dimension is realized. The subsystem can detect rim thickness, rim height, wheel abrasion, wheel diameter, wheel pair inner side distance and tread circumference abrasion on line.
If the on-line detection of the thickness of the wheel rim, the height of the wheel rim, the abrasion of the wheel, the diameter of the wheel, the inner distance of the wheel pair and the circumferential abrasion of the tread exceed the corresponding limit values, the wheel needs to be replaced.
For example, the initial wheel diameter is 840 mm, and if the wheel diameter is detected to be less than the limit value 770 mm on line, the wheel needs to be replaced; the initial rim thickness is 32 mm and if the rim thickness is detected on line to be less than 23 mm, the wheel needs to be replaced.
Step 102: if yes, carrying out power-off operation on the air rail transport vehicle;
in this embodiment, if it is determined that the wheels of the air rail vehicle have satisfied the replacement condition, the wheel replacement operation is required. Before the wheel changing operation of the air rail transport vehicle, the vehicle wheel changing operation application is firstly carried out.
When the special overhaul is performed, an overhaul team can hold a working meeting to organize the operation project and related notice matters which are required to be completed when the aerial rail transport vehicle is changed; the operator applies for the wheel changing operation and prepares tools required by the wheel changing operation; and preparing a wheel-changing operation area, and entering a transport vehicle into a warehouse according to a regulation after the safety protection operation is finished. After the air rail transport vehicle enters a warehouse and stops stably, because lifting operation is involved, an operator pulls up a guard rail in a preset range below the air rail transport vehicle on the ground for safety consideration, and an overhaul warning sign is set. Afterwards, the maintenance team applies for power-off operation, and the transport vehicle is powered off; after confirming that the power failure is completed, the vehicle is grounded.
The overhead rail transport vehicle is driven by a linear motor, a maintenance team applies for power-off operation, and after a power regulator powers off the traction converter through remote control, the storage battery in the vehicle is disconnected.
Step 103: after the frame of the overhead rail transport vehicle is lifted by the lifting device on the rotation station, the frame is separated from the bogie;
in this embodiment, after receiving the power-off completion notification, the service personnel indicates that the service area is in the power-off state, and can start the next operation.
Because the transport vehicle is hung below the track beam, when the wheels are replaced, the frame needs to be lifted a little by using a lifting device and then separated from the bogie.
Specifically, 4 lifting devices for lifting the frame are arranged on the wheel changing station, each lifting device is respectively connected with 1 sling, the slings are used for holding the hooks of 4 lifting points of the frame, and meanwhile, the lifting devices are operated to keep each sling in a slightly stressed pre-tightening state. That is, the hanging strip is stressed in a tight state, so that whether the frame is inclined after being lifted is easily observed.
After the frame is stable, the lifting device is synchronously started to enable the frame to slowly and stably rise for a certain distance. It should be noted that the lifting distance is limited, so that the bogie does not bear the gravity of the frame any more, and the connecting pin shaft is convenient to dismount.
When in hoisting, the heights of 4 hoisting points are observed at the required time, so that the deflection of the upper bogie caused by the inclination of the frame is avoided. Meanwhile, collision between the upper part of the frame and the platform should be avoided, and the transport vehicle is damaged.
After the lifting of the frame is completed, the connecting pin shafts between the two bogies and the frame are sequentially removed, and the removed connecting pin shafts and the corresponding frame are marked and properly reserved for subsequent recovery and installation.
The frame was then slowly and steadily lowered by 4 lifting devices until the frame was placed on the ground frame support equipment. After the frame is placed, the hanging belt is disassembled, the lifting device is returned to the initial position, and the power supply of the lifting device is turned off.
Step 104: hoisting the bogie on the track to a ground operation table by a hoisting device at the end of the warehouse wire;
the storage line refers to a section of track for parking the transport vehicle when the wheels are replaced for maintenance. Air rail car trucks with walkers in closed box girders, if the truck is to be separated from the track, it is necessary to transport the truck to the end of the line, i.e. the end of the line.
And a lifting device is further arranged at the end of the warehouse line and is used for lifting the bogie. When the bogie is separated from the frame, the bogie is still on the track, and before the wheels are replaced, the bogie with the wheels needs to be hoisted to a ground operation table from the track. Before hoisting, the bogie needs to be moved to the end of the storage line manually or by a winch.
Step 105: removing old wheels on the bogie and replacing new wheels;
in this embodiment, after the hoisting device at the end of the stock line lifts the bogie on the track to the ground console, the personnel of the service team detach the old wheel from the bogie on the ground, and then attach the new wheel to the bogie. The disassembly and assembly of the wheel can be referred to as the following steps:
wheel set detection
The staff needs to measure and record parameters such as the diameter of the wheel, the height and the thickness of the rim of the old wheel set, the distance between the inner sides of the two wheels and the like.
Wheel for withdrawing and unloading
And lifting the old wheel set which is subjected to measurement and inspection to a special wheel set dismounting machine, and utilizing a high-pressure oil pump to withdraw the old wheel set, so as to leave an optical axis without wheels.
Flaw detection for axle
And then carrying out fluorescent magnetic powder flaw detection on the axle, carrying out paint removal cleaning treatment before the axle flaw detection, and then conveying the axle with bare hair to professional axle flaw detection equipment to check whether crack damage exists in the axle.
Wheel processing
Before a new wheel set is replaced, the new wheel set is processed. The inner hole of the wheel is machined according to the diameter of the axle, and the step is also called wheel matching.
Wheel set press fitting
The wheel set is then press-fitted. And (3) matching the processed new wheel with the axle which is qualified by inspection by a worker, lifting the new wheel to a wheel set press-fitting machine, and performing cold press-fitting.
Retest delivery
And retesting each parameter of the new wheel set. And after each index is retested, spraying paint on the new wheel set according to the requirement.
Step 106: hoisting a bogie for replacing wheels to a track;
the bogie with new wheels is hoisted to the track in sequence through a hoisting device at the end of the stock line, and the bogie is properly placed according to the marks on the bogie. An air rail vehicle may have multiple bogies depending on the size of the vehicle body. For example, the transport vehicle of this embodiment has 2 bogies, and after the bogies replace the wheels, the bogies are hoisted to the track in turn according to the previous hoisting order and the marks of the bogies; the marks may be numbers or symbols. For example, one bogie is marked with a "front" and the other bogie is marked with a "rear", and accordingly, when the frame is separated from the bogie to remove the connecting pin, the marking of the bogie is identical to the marking on the corresponding connecting pin, that is, the bogie is marked with a "front" and the same marking is also provided on the corresponding connecting pin, so that the connecting pin can be conveniently installed to the original position during the later installation.
Step 107: and lifting the frame to the lower part of the bogie, aligning the pin holes of the frame with the pin holes of the bogie, and inserting the connecting pin shafts into the pin holes of the frame and the pin holes of the bogie.
After the bogie is hoisted to the track, the frame also needs to be hoisted to the lower part of the bogie and connected with the bogie.
When the frame is hoisted, hanging strips of 4 lifting devices are used for hoisting the frame to cover hanging hooks of 4 hanging points of the frame, a power supply of the lifting devices is turned on, the hanging hooks of the lifting devices are operated to descend to the vicinity of the frame, the lifting devices are connected with the hanging strips, meanwhile, the lifting devices are operated to enable each hanging strip to be in a slightly stressed pre-tightening state, after the frame is stable, the lifting devices are synchronously and point-operated, the frame is slowly and stably lifted until the frame is close to the bogie and is positioned at the vicinity of the lower part of the bogie, then the position of the bogie is adjusted, pin holes of the bogie are aligned with pin holes of the frame, and connecting pins with the same marks as the bogie are installed.
And then the lifting device is operated to descend until the hanging belt is completely loosened, the hanging belt is disassembled, the lifting device is returned to the initial position, and the power supply of the lifting device is turned off. At this point the shift rotation is completed. The maintenance team reports the completion condition of the operation, and confirms that all operators are evacuated, and no tools remain on the operation site; and checking the working condition by a quality inspection worker to confirm that the wheel changing work is completed.
After confirming that the wheel changing work is completed, the maintenance team removes the guard rail and the warning sign, reports that the wheel changing work is completed, and the maintenance personnel confirms that no maintenance personnel and maintenance tools remain in the operation area on the vehicle and then withdraws from the operation area. And then applying for power supply operation to the electric operator, and remotely controlling the traction converter to act after the safety of the electric operator is confirmed to start power supply recovery.
After the power supply is restored, when the air rail transport vehicle goes out of the warehouse, an overhaul worker observes whether the vehicle runs normally or not in a specified area, and whether abnormal sounds exist in the running of the wheels or not; after confirming that the vehicle is not abnormal, filling in a corresponding operation record table, and recording the wheel replacement condition and the corresponding accessory replacement condition; the train enters a train storage line to be temporarily stored, and waits for a train dispatching instruction of the dispatching system.
In summary, the embodiment of the present specification provides an air rail transport vehicle wheel changing maintenance process. Judging whether the wheels of the air rail transport vehicle meet replacement conditions or not, wherein the replacement conditions comprise running mileage or running time or wheel set on-line detection states; if yes, carrying out power-off operation on the air rail transport vehicle; after the frame of the overhead rail transport vehicle is lifted by the lifting device on the rotation station, the frame is separated from the bogie; hoisting the bogie on the track to a ground operation table by a hoisting device at the end of the warehouse wire; removing old wheels on the bogie and replacing new wheels; hoisting a bogie for replacing wheels to a track; and lifting the frame to the lower part of the bogie, aligning the pin holes of the frame with the pin holes of the bogie, and inserting the connecting pin shafts into the pin holes of the frame and the pin holes of the bogie. Therefore, the wheel changing and overhauling process flow of the air rail transport vehicle can be clarified, overhauling basis and method are provided for overhauling staff, and overhauling efficiency and service life of the vehicle are effectively improved.
Based on the same inventive concept, the embodiment of the invention also provides an air rail transport vehicle, which comprises a transport vehicle body, wherein the transport vehicle body is suitable for the wheel changing maintenance process of the air rail transport vehicle.
The specific operation method of the air rail transport vehicle wheel changing maintenance process refers to the content of the foregoing embodiment, and will not be described herein.
In summary, embodiments of the present disclosure provide an air rail vehicle. Judging whether the wheels of the air rail transport vehicle meet replacement conditions or not, wherein the replacement conditions comprise running mileage or running time or wheel set on-line detection states; if yes, carrying out power-off operation on the air rail transport vehicle; after the frame of the overhead rail transport vehicle is lifted by the lifting device on the rotation station, the frame is separated from the bogie; hoisting the bogie on the track to a ground operation table by a hoisting device at the end of the warehouse wire; removing old wheels on the bogie and replacing new wheels; hoisting a bogie for replacing wheels to a track; and lifting the frame to the lower part of the bogie, aligning the pin holes of the frame with the pin holes of the bogie, and inserting the connecting pin shafts into the pin holes of the frame and the pin holes of the bogie. Therefore, the wheel changing and overhauling process flow of the air rail transport vehicle can be clarified, overhauling basis and method are provided for overhauling staff, and overhauling efficiency and service life of the vehicle are effectively improved.
The above is merely various embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present invention, and the changes and substitutions are intended to be covered in the protection scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (10)
1. The wheel changing and overhauling process for the air rail transport vehicle is characterized by comprising the following steps of:
judging whether wheels of the air rail transport vehicle meet replacement conditions or not, wherein the replacement conditions comprise running mileage or running time or on-line detection states of wheel sets;
if yes, carrying out power-off operation on the air rail transport vehicle;
after lifting a frame of an air rail transport vehicle by a lifting device on a rotation station, separating the frame from the bogie;
hoisting the bogie on the track to a ground operation table by a hoisting device at the end of the warehouse wire;
removing old wheels on the bogie and replacing new wheels;
hoisting a bogie for replacing wheels to a track;
and lifting the frame to the position below the bogie, aligning the pin holes of the frame with the pin holes of the bogie, and inserting the connecting pin shafts into the pin holes of the frame and the bogie.
2. The service process of claim 1, wherein the lifting device on the alternate station lifts the frame of the overhead rail transport vehicle, comprising:
the lifting device on the wheel changing station is connected with 4 hanging strips, and the 4 hanging strips are connected with the lifting hooks of the 4 lifting points of the frame;
operating the lifting device to enable each sling to be in a stressed pre-tightening state;
and synchronously starting the lifting device to enable the frame to ascend.
3. The service process of claim 1, wherein the frame is separated from the bogie, comprising:
and dismantling a connecting pin shaft between the bogie and the frame.
4. A service process according to claim 3, wherein the detached connection pins are marked identically with the corresponding frames, respectively.
5. The service process of claim 1, further comprising, before the hoisting device at the end of the storage line hoisting the bogie on the track to the ground console:
the truck is moved to the end of the line by hand or by a winch.
6. The service process of claim 1, wherein prior to performing the power down operation on the air rail vehicle, further comprising:
after the air rail transport vehicle enters a warehouse and stops, a protective guard with a preset range is pulled up on the ground below the air rail transport vehicle, and an overhaul warning sign is set.
7. The service process of claim 1, wherein the method further comprises:
operating the lifting device to descend until the hanging strip is completely loosened, and removing the hanging strip from the frame;
and returning the lifting device to an initial position, and closing the power supply of the lifting device.
8. The service process of claim 1, wherein the determining whether the wheel of the air rail vehicle meets the replacement condition comprises:
if the running mileage of the air rail transport vehicle is more than 240 ten thousand kilometers, the wheels meet the replacement condition;
or if the running time of the air rail transport vehicle is longer than 8 years, the wheels meet the replacement condition;
or if the wheel of the air rail transport vehicle exceeds the detection limit value during the on-line detection of the wheel set, the wheel meets the replacement condition.
9. The service process of claim 8, wherein the wheel set on-line detection of the wheel includes wheel diameter detection, wheel wear detection, rim height detection, rim thickness detection, and wheel tread circumference wear detection.
10. An air rail transport vehicle, characterized by comprising a transport vehicle body, said transport vehicle body being adapted for use in an air rail transport vehicle wheel changing service process according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310596948.7A CN116534078A (en) | 2023-05-22 | 2023-05-22 | Air rail transport vehicle and wheel replacement overhauling process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310596948.7A CN116534078A (en) | 2023-05-22 | 2023-05-22 | Air rail transport vehicle and wheel replacement overhauling process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116534078A true CN116534078A (en) | 2023-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310596948.7A Pending CN116534078A (en) | 2023-05-22 | 2023-05-22 | Air rail transport vehicle and wheel replacement overhauling process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116534078A (en) |
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2023
- 2023-05-22 CN CN202310596948.7A patent/CN116534078A/en active Pending
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