CN114703708B - Steel rail water jet polishing operation lifting system based on data processing and operation method - Google Patents
Steel rail water jet polishing operation lifting system based on data processing and operation method Download PDFInfo
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- CN114703708B CN114703708B CN202210407651.7A CN202210407651A CN114703708B CN 114703708 B CN114703708 B CN 114703708B CN 202210407651 A CN202210407651 A CN 202210407651A CN 114703708 B CN114703708 B CN 114703708B
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- lifting frame
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 103
- 238000005498 polishing Methods 0.000 title claims abstract description 88
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 51
- 239000010959 steel Substances 0.000 title claims abstract description 51
- 238000012545 processing Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 238000005259 measurement Methods 0.000 claims abstract description 3
- 230000009467 reduction Effects 0.000 claims description 35
- 238000003860 storage Methods 0.000 claims description 17
- 239000000446 fuel Substances 0.000 claims description 13
- 238000002955 isolation Methods 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 8
- 230000002457 bidirectional effect Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000013016 damping Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 20
- 238000005516 engineering process Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000000227 grinding Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
- E01B31/02—Working rail or other metal track components on the spot
- E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
- E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding
Abstract
The invention discloses a steel rail water jet polishing operation lifting system based on data processing and an operation method, wherein the system comprises a power device unit, a lifting positioning unit and a control unit which are arranged on an operation vehicle; the power device unit provides electric, pneumatic and hydraulic power for the system operation; the lifting positioning unit comprises a door frame, a lifting oil cylinder, a lifting guide mechanism, a locking gate, a laser range finder and a lifting frame, wherein the lifting oil cylinder is controlled by the control unit to drive the lifting frame to stably lift under the guide of the lifting guide mechanism through real-time measurement data of the laser range finder, so that a water jet knife loaded on the lifting frame accurately descends to a polishing point, the locking gate is closed to cooperate with the lifting oil cylinder to perform self-locking, and the lifting frame is locked in all directions during polishing operation; through being equipped with second damping portion in power device unit bottom, be equipped with first damping portion in door frame bottom, block vibration conduction, make water jet sword its operation of polishing that can steadily to the precision of polishing has been improved.
Description
Technical Field
The invention belongs to the technical field of steel rail polishing, and particularly relates to a steel rail water jet polishing operation lifting system based on data processing and an operation method.
Background
The rail is directly loaded with the basic structure of the rail, the rail bears huge operation pressure under the background of railway speed increasing, the rail can generate serious abrasion during service due to the action of wheel rails, the service life of the rail is obviously shortened, a large number of rails are replaced each year, and huge economic loss is caused, so that the improvement of the service life of the rail has great significance for operation, maintenance and repair of the rail and the urban rail transit in China.
The traditional rail abrasion maintenance mode is to polish and repair the rail by means of a grinding wheel through small equipment or large road maintenance machinery, so that the influence of abrasion on the service life of the rail is reduced, but the rail is polished by the grinding wheel, because a large amount of heat is generated in the operation process, the surface of the rail is easy to burn, the material property of the rail is damaged, and the service life of the rail is not prolonged.
The water jet technology has the advantages of low heat and environmental protection, and can be applied to rail polishing, but the water jet rail polishing technology still has the following problems to be solved: (1) The existing technology is not mature in a lifting system applied to the water jet steel rail polishing technology, a method for controlling a plurality of groups of water jet knives is not available, and the water jet knives cannot be lifted to different heights by different polishing surfaces to perform collaborative polishing, so that the efficiency of the water jet knives on steel rail polishing is improved; (2) When the water jet technology is applied to steel rail polishing, equipment arranged on a polishing operation vehicle is easy to vibrate during working, offset is easy to occur during lifting of a water jet knife, and positioning accuracy cannot be guaranteed; (3) When the water jet technology is applied to rail polishing, the rail polishing device faces a plurality of vibration sources on a rail working vehicle, is extremely easy to interfere, and the polishing precision is not easy to control.
Disclosure of Invention
Aiming at the problems that a lifting system applied to the water jet steel rail polishing technology is not mature in the prior art, and a water jet knife is easy to be interfered by a vibration source during lifting and polishing operations, so that the positioning accuracy is reduced and the polishing effect is poor, the invention provides the steel rail water jet polishing operation lifting system and the operating method based on data processing.
In order to achieve the above purpose, the invention provides a steel rail water jet polishing operation lifting system based on data processing, which comprises a power device unit arranged on an operation vehicle and used for providing electric, pneumatic and hydraulic power for the operation of the system; the lifting positioning units comprise a door frame arranged on the working vehicle, a lifting oil cylinder with one end fixedly arranged on the door frame, a lifting frame arranged at the other end of the lifting oil cylinder, a lifting guide mechanism arranged at the side edge of the lifting frame and used for keeping fixed relative distance between two sides of the lifting frame and the door frame, and a laser range finder arranged at the bottom of the lifting frame and used for detecting the distance between a water jet knife and a steel rail in real time, wherein the laser range finder is used for measuring data in real time, and the lifting oil cylinder drives the lifting frame to stably lift under the guide of the lifting guide mechanism so that the water jet knife loaded on the lifting frame accurately descends to a polishing point; the control unit is in communication connection with the power device unit and the lifting positioning unit and comprises a central controller; the control unit controls the power device unit to provide power for the lifting positioning units according to the polishing operation time sequence, and the water jet cutters carried on the lifting positioning units of each group are lowered to different heights according to the real-time uploading measurement data of the laser range finder, so that efficient and accurate collaborative polishing can be performed when different steel rail polishing surfaces are handled.
Further, a locking brake is arranged on the outer side of the lifting frame and comprises a high-pressure air pipe with the bottom arranged on the outer side wall surface of the lifting frame, a friction plate arranged on the top of the high-pressure air pipe and a tension spring for connecting the friction plate with the outer side wall surface of the lifting frame; the air pipe is input with high-pressure air, extends outwards to push the friction plate to the inner side wall surface of the door frame and compresses and adheres the friction plate, the switching of the locking brake from a brake starting state to a brake closing state is completed, the locking brakes symmetrically arranged on two sides of the lifting frame are used for simultaneously closing the brake, the lifting cylinder is matched for self locking, and the lifting frame is locked in all directions during the polishing operation of the water jet knife.
Further, a second vibration reduction part is arranged at the bottom of the power unit and used for isolating vibration conducted to the direction of the working vehicle when the power unit works; the outer side of the bottom of the door subframe is symmetrically provided with a plurality of groups of fixed brackets, and the bottom of the fixed brackets is provided with a first vibration reduction part to be connected with the operation vehicle, so that vibration conducted along the operation vehicle to the door subframe is blocked; through the first vibration reduction part and the second vibration reduction part, bidirectional vibration isolation of the water jet knife is realized.
Preferably, the lifting guide mechanism comprises a guide wheel and a connecting shaft, the guide wheel is abutted against the inner side wall of the door frame, one end of the connecting shaft is connected with the guide wheel, and the other end of the connecting shaft is fixed on the side edge of the lifting frame.
Preferably, the lifting guide mechanism comprises a limiting sliding groove arranged on the inner side wall of the door subframe in the vertical direction, a sliding block arranged in the limiting sliding groove, and a connecting shaft connected with the sliding block and the side edge of the lifting frame through two ends respectively.
Further, the power device units are arranged at two ends of the operation vehicle and comprise an air pressure station and a hydraulic station which are arranged at one end of the operation vehicle, and a storage battery and a fuel oil generator which are arranged at the other end of the operation vehicle; the power device unit outputs power through a pneumatic pipeline, a hydraulic pipeline and a cable which are arranged in the gas-liquid pipe groove in a centralized mode.
Further, two groups of lifting positioning units are sequentially arranged above each side of the steel rail, and each group of lifting positioning units is loaded with four groups of water jet cutters.
Further, the first vibration reduction part is an air spring, and the second vibration reduction part is made of an air cushion.
Further, the air cushion is connected with the air pressure station through an air pressure pipeline, and an air pressure sensor is arranged in the air cushion.
According to one aspect of the invention, there is also provided a method of operating a rail water jet grinding operation lifting system based on data processing, comprising the steps of:
s1: the operation vehicle is integrally moved to an operation area by the rail vehicle;
s2, before the operation starts, the fuel generator works as a storage battery for charging;
s3: starting operation, stopping the fuel generator, and supplying power to the whole system by the storage battery;
s4, performing S4; the central controller controls the air pressure station to inflate all the second vibration reduction parts, so that the power device unit and the working vehicle are subjected to vibration isolation;
s5, controlling the hydraulic station to control the lifting oil cylinder to descend by the central controller;
s6, the laser range finder monitors the distance between the water jet knife and the steel rail in real time and transmits monitoring data to the central controller;
s7, after the central controller judges that the lifting frame reaches a designated position, a stop instruction is given to the hydraulic station, so that the lifting cylinder stops acting and the position of the lifting frame is locked;
s8, simultaneously controlling the air pressure station to supply air for the locking brake by the central controller, so that the locking brake is switched from a brake starting state to a brake closing state, and doubly locking the position of the lifting frame;
s9, the central controller controls a plurality of groups of water jet cutters to polish the surface of the steel rail according to a certain movement track;
s10, after finishing polishing operation, controlling the air pressure station to release air for the locking brake by the central controller, switching the locking brake from a closing state to a starting state, and unlocking the position of the lifting frame;
s11, the central controller gives an instruction to the hydraulic station to reset the lifting oil cylinder;
s12, controlling the air pressure station to release air for all air cushions by the central controller;
s13, controlling the power-off of the storage battery by the central controller;
and S14, the whole operation vehicle is moved to the next operation area.
In general, the above technical solutions conceived by the present invention, compared with the prior art, enable the following beneficial effects to be obtained:
1. according to the steel rail water jet polishing operation lifting system based on data processing, the power device unit, the lifting positioning unit and the control unit are arranged on the operation vehicle, and the power device unit provides electric, pneumatic and hydraulic power for the whole system, so that the whole system can operate; the lifting positioning unit comprises a door frame, a lifting oil cylinder, a lifting guide mechanism, a lifting frame and a laser range finder, wherein the lifting frame is driven by the lifting oil cylinder to stably lift under the guide of the lifting guide mechanism, and the distance between the lifting frame and a steel rail is measured in real time through the laser range finder, so that a water jet knife loaded on the lifting frame accurately descends to a polishing point; the control unit is in communication connection with the plurality of groups of lifting positioning units, and under the control of the control unit, each group of lifting positioning units can descend the water jet knives carried on the lifting positioning units to different heights so as to cope with different steel rail polishing surfaces and achieve efficient and accurate collaborative polishing; the stable lifting system of the invention adopts the technical scheme that the water jet technology is applied to the steel rail polishing and lifting arch, so that the stable lifting of a plurality of groups of water jet cutters is ensured, and the smooth implementation of the water jet steel rail polishing technology is ensured.
2. According to the steel rail water jet polishing operation lifting system based on data processing, after the water jet knife reaches a designated polishing point, the lifting cylinder is self-locked and the locking brake is attached to the inner side wall surface of the pressing door subframe to lock the lifting frame in an omnibearing manner, so that the lifting frame is prevented from being deviated due to vibration, and the positioning accuracy of the water jet knife during working is improved.
3. According to the steel rail water jet polishing operation lifting system based on data processing, the second vibration reduction part is arranged at the bottom of the power device unit, so that vibration generated by the power device unit is isolated from being transmitted to the operation vehicle, and the first vibration reduction part is arranged at the bottom of the door frame, so that the vibration transmission of the operation vehicle to the lifting positioning unit is blocked, the bidirectional vibration isolation of the water jet knife is realized, the interference of the water jet knife is avoided, the water jet knife can stably perform polishing operation, and the polishing precision is improved.
4. According to the steel rail water jet polishing operation lifting system based on data processing, the lifting frame is arranged, so that the fixed relative distance between the two sides of the lifting frame and the door frame is kept, the lifting frame is guided in the lifting operation process of the lifting frame, and when radial deviation occurs due to vibration, correction is carried out, the lifting frame can stably perform lifting operation, and the lifting precision is effectively ensured.
Drawings
FIG. 1 is a schematic diagram showing a lowering state of a steel rail water jet polishing operation lifting system based on data processing in a front view in an embodiment of the invention;
FIG. 2 is a schematic elevation view of a lifting state of a steel rail water jet polishing operation lifting system based on data processing in an embodiment of the invention;
FIG. 3 is a schematic top view of a lifting system for water jet polishing operation of steel rails based on data processing in an embodiment of the invention;
FIG. 4 is a schematic left view of a lifting system for steel rail water jet polishing operation based on data processing in an embodiment of the invention;
FIG. 5 is a schematic diagram of a stable lifting unit according to an embodiment of the present invention;
FIG. 6 is a schematic diagram showing a state of locking the stable lifting unit to the gate in the embodiment of the present invention;
FIG. 7 is a schematic diagram showing a state of locking the stable lifting unit to the gate in the embodiment of the present invention;
FIG. 8 is a diagram of a vibration double isolation mechanism of a stabilized lift system in an embodiment of the present invention;
FIG. 9 is a control logic block diagram of a steel rail water jet polishing operation lifting system based on data processing in an embodiment of the invention;
FIG. 10 is a flow chart of an operation method of a steel rail water jet polishing operation lifting system based on data processing in an embodiment of the invention.
Like reference numerals denote like technical features throughout the drawings, in particular: 1-air pressure station, 2-hydraulic station, 3-door subframe, 4-lift cylinder, 5-locking brake, 501-extension spring, 502-high-pressure air pipe, 503-friction plate, 6-lift guiding mechanism, 7-battery, 8-fuel generator, 9-gas-liquid pipe groove, 10-water jet knife, 11-laser range finder, 12-lift frame, 13-first damping portion, 14-second damping portion, 15-operation car, 16-rail.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 1-9, the invention provides a steel rail water jet polishing operation lifting system and an operation method based on data processing, wherein the system comprises a power device unit, a lifting positioning unit and a control unit which are arranged on an operation vehicle 15, and the power device unit provides power for the lifting positioning unit to lift and lock a water jet knife 10. The power device unit comprises a pneumatic station 1, a hydraulic station 2, a storage battery 7 and a fuel generator 8, the lifting positioning unit comprises a door subframe 3 arranged on a working vehicle 15, a lifting oil cylinder 4 with one end fixedly arranged on the door subframe 3, a lifting frame 12 arranged at the other end of the lifting oil cylinder 4, and a locking gate 5 and a lifting guide mechanism 6 for guiding are arranged on the side edge of the lifting frame 12; when the water jet knife 10 descends to polish the steel rail 16, the lifting oil cylinder 4 drives the lifting frame 12 to move downwards under the control of the control unit, the water jet knife 10 arranged on the lifting frame 12 is stably descended to a designated polishing point through the lifting guide mechanism 6, and automatic intelligent lifting adjustment of the water jet knife 10 is realized. In the stable lifting system, the bottom of the power unit is provided with the second vibration reduction part 14, so that vibration generated when the power unit works is prevented from being conducted along the direction of the working vehicle 15, the first vibration reduction part 13 is arranged between the door subframe 3 and the working vehicle 15, and the vibration conduction of the working vehicle to the door subframe 3, the lifting frame 12 and the water jet knife direction is blocked, so that the bidirectional isolation of the vibration is realized; after the water jet knife 10 descends to a polishing point, the lifting oil cylinder 4 is self-locked, the locking brake 5 at two sides of the lifting frame 12 is turned into a closing state, and the lifting frame 12 is doubly locked, so that double locking during lifting and positioning of the system is realized; the lifting system improves the stability of system control through bidirectional isolation of vibration and double locking during descending and positioning, so that the water jet knife 10 is more stable in the lifting process, the positioning is more accurate, and the smooth implementation of the water jet rail polishing technology is ensured.
As shown in fig. 1-3, the power unit is disposed at two ends of the working vehicle 15, and can be far away from the lifting positioning unit disposed in the middle of the working vehicle 15, and vibration generated when the power unit works is effectively attenuated along with the increase of the distance between the power unit and the stable lifting device through the spacing arrangement of the power unit and the stable lifting device. In a preferred embodiment of the present invention, the power unit includes a pneumatic station 1 and a hydraulic station 2 provided at one end of a working vehicle 15, a battery 7 and a fuel generator 8 provided at the other end of the working vehicle 15. The air pressure station 1 provides air pressure power for the lifting positioning unit through an air pressure starting pipeline and is used for locking the brake 5 to perform locking action; the hydraulic station 2 provides hydraulic power for the lifting positioning unit through a hydraulic pipeline and is used for lifting the water jet knife 10 by the lifting oil cylinder 4; the fuel generator 8 charges the storage battery 7, and the storage battery 7 supplies power to the whole system through a cable; the pneumatic pipeline, the hydraulic pipeline and the cable are laid in a concentrated manner through a gas-liquid pipe groove 9 arranged on the working vehicle 15. In order to prevent vibration generated during operation of the power unit from being conducted along the working vehicle 15 so as to influence the polishing precision of the water jet knife 10, a second vibration reduction part 14 is arranged between the bottom of the power unit and the working vehicle 15 while the power unit is arranged far away from the lifting positioning unit, the vibration is prevented from being conducted along the working vehicle 15 by reducing energy generated by absorbing the vibration, and the second vibration reduction part 14 is made of vibration reduction materials; preferably, the second vibration reduction part 14 is made of an air cushion, and the air cushion is connected with the air pressure station 1 through an air pressure pipeline; preferably, an air pressure sensor is arranged in the air cushion and is in communication connection with the control unit, and when the pressure in the air cushion is reduced, the air pressure station 1 is timely controlled to be pressurized, so that the influence of the reduction of the vibration reduction effect of the second vibration reduction part 14 on the polishing precision of the water jet knife 10 due to insufficient air pressure is avoided.
The lifting positioning units are arranged in the middle of the working vehicle 15, a plurality of groups can be arranged according to the requirement of steel rail polishing efficiency, in the preferred embodiment of the invention, two groups of lifting positioning units are sequentially arranged above each side of steel rail, each group of lifting positioning units is provided with four groups of water jet knives 10, and 16 groups of water jet knives 10 simultaneously polish the steel rails 16 on two sides, so that the steel rail polishing efficiency is improved; further, each group of lifting positioning units is in communication connection with the control unit, and under the control of the control unit, each group of lifting positioning units can descend the water jet knife 10 carried on the lifting positioning units to different heights so as to cope with different steel rail polishing surfaces, and efficient and accurate collaborative polishing is achieved.
As shown in fig. 4-5, the lifting positioning unit comprises a door subframe 3, a lifting cylinder 4, a locking gate 5, a lifting guide mechanism 6, a laser range finder 11, a lifting frame 12 and a first vibration reduction part 13. The door frame is characterized in that a plurality of groups of fixing supports are symmetrically arranged on the outer side of the bottom of the door frame 3, the bottom of each fixing support is connected with the operation vehicle 15 through the first vibration reduction parts 13, vibration conducted to the door frame 3 along the operation vehicle 15 can be blocked by the first vibration reduction parts 13, so that a plurality of groups of water jet cutters 10 can perform polishing stably, polishing precision is effectively improved, preferably, the first vibration reduction parts 13 can be air springs, and the door frame has the advantages of being small in mass, good in comfort, fatigue-resistant, long in service life and the like.
The lifting oil cylinders 4 are respectively arranged at two ends of the inner top of the door subframe 3 and can synchronously lift, the top of a piston rod of each lifting oil cylinder 4 is fixedly connected with the top of each lifting frame 12, lifting operation is carried out under the drive of the piston rod of each lifting oil cylinder 4, after the lifting operation is completed, each lifting oil cylinder 4 can be self-locked, and the lifting frames 12 are prevented from moving up and down due to external vibration factors.
In order to prevent the lifting frame 12 from radial deflection during lifting operation, the side edge of the lifting frame 12 is provided with a lifting guide mechanism 6, which effectively avoids the occurrence of the radial deflection phenomenon by keeping a fixed relative distance between the two sides of the lifting frame 12 and the door frame 3. Preferably, the lifting guide mechanism 6 comprises a guide wheel and a connecting shaft, the guide wheel is abutted against the inner side wall of the door frame 3, one end of the connecting shaft is connected with the guide wheel, the other end of the connecting shaft is fixed on the side edge of the lifting frame 12, and when lifting operation is performed, the guide wheel on the side surface of the lifting frame 12 rotates along the inner side surface of the door frame 3 to guide the lifting of the lifting frame 12, so that radial deflection is avoided when vibration occurs; preferably, the lifting guide mechanism 6 comprises a limiting sliding groove arranged in the vertical direction on the inner side wall of the door subframe 3, a sliding block arranged in the limiting sliding groove, and a connecting shaft connected with the sliding block and the side edge of the lifting frame 12 respectively through two ends, wherein the sliding block performs vertical displacement in the limiting sliding groove, the radial displacement of the sliding block is limited, the lifting frame 12 can effectively resist horizontal lateral force, the lifting frame 12 is fixedly connected with the sliding block through the connecting shaft, under the guiding of the sliding block, when the radial deviation occurs due to vibration in the lifting operation process of the lifting frame 12, the limiting sliding groove is used for limiting, the lifting frame 12 can be corrected, and the lifting precision of the lifting frame 12 is effectively ensured.
The laser range finder 11 is arranged at the bottom of the lifting frame 12, detects the distance between the water jet knife 10 and the steel rail in real time, and transmits monitoring data to the control unit. When the grinding surfaces of different steel rails are treated, the control unit can respectively adjust the lifting height of each group of water jet cutters 10 according to parameter configuration, so that the water jet cutters 10 can perform efficient and accurate collaborative grinding.
When the water jet knife 10 is polished, in order to prevent the water jet knife 10 from being affected by vibration interference and the positioning accuracy, the lifting frame 12 for loading the water jet knife 10 is further locked by the locking brake 5. The locking brake 5 is arranged on the outer side of the lifting frame 12, and has a structure shown in fig. 6-7, and comprises a tension spring 501, a high-pressure air pipe 502 and a friction plate 503, wherein the top of the high-pressure air pipe 502 is fixedly connected with the friction plate 503, and the bottom of the high-pressure air pipe is arranged on the outer side wall surface of the lifting frame 12 and is connected with the air pressure station 1 through an air pressure pipeline, so that the high-pressure air stretches under the action of high-pressure air. The friction plate 503 has a friction surface on the top, which can increase the resistance when moving the friction plate 503 after being attached to and pressed against the inner side wall surface of the door frame 3; the bottom of the friction plate 503 is connected with the outer side wall surface of the lifting frame 12 through a tension spring 501, and the friction plate 503 can be restored to the original position after the high-pressure air pipe 502 leaks air. When the locking brake 5 works, the air pressure station 1 inputs high-pressure air under the control of the control unit, the high-pressure air pipe 502 stretches outwards to push the friction plate 503 to the inner side wall surface of the door frame 3 and compresses and adheres the friction plate, the locking brake 5 is switched from a brake starting state to a brake closing state, the lifting frame 12 is locked through a plurality of symmetrically arranged locking brakes 5 on two sides of the lifting frame 12, the lifting frame 12 is prevented from moving in the vertical and horizontal directions under the condition of vibration, and the positioning precision of the water jet knife 10 is affected.
In the embodiment of the invention, the lifting frame 12 is more stable in the collecting process when the lifting positioning unit passes through the lifting guide mechanism 6, and the water jet knife 10 can be accurately lowered to a designated polishing point by being matched with the laser range finder 11; after the water jet knife 10 reaches a designated polishing point, the lifting oil cylinder 4 is self-locked and the locking brake 5 is attached to the inner side wall surface of the compaction door subframe 3, so that the lifting frame 12 is locked in an omnibearing manner, the deviation of the lifting frame due to vibration is avoided, and the positioning precision of the water jet knife 10 during working is improved.
In the embodiment of the invention, as shown in fig. 9, the vibration double isolation is adopted for the stable lifting system, namely, the second vibration reduction part 14 is arranged at the bottom of the power unit, so that the transmission of the vibration generated during the operation of the power unit to the direction of the operation vehicle 15 is isolated, and the first vibration reduction part 13 is arranged at the bottom of the door subframe 3, so that the transmission of the vibration of the operation vehicle 15 to the direction of the lifting positioning unit is blocked, the bidirectional vibration isolation of the water jet knife 10 is realized, the water jet knife 10 is prevented from being interfered, and the water jet knife can perform polishing operation stably, thereby improving the polishing precision.
As shown in fig. 9, in the embodiment of the present invention, the control unit includes a central controller, which is connected with the storage battery 7 and the fuel generator 8 in a communication manner, and controls the fuel generator 8 to start to charge the storage battery 7, and controls the storage battery 7 to supply power to other electric devices in the system; the control unit controls the air pressure station 1 to output high-pressure air to the second vibration reduction part 14 and the locking brake 5 through communication connection with the air pressure station 1; the control unit controls the hydraulic station 2 to transmit hydraulic power to the lifting cylinder 4 through communication connection with the hydraulic station 2.
As shown in fig. 10, the embodiment of the invention further provides an operation method of the steel rail water jet polishing operation lifting system based on data processing, which comprises the following steps:
s1: the working vehicle 15 is entirely moved to the working area by the rail vehicle;
s2, before the operation starts, the fuel generator 8 works to charge the storage battery 7;
s3: starting operation, stopping the fuel generator 8, and supplying power to the whole system by the storage battery 7;
s4, performing S4; the central controller controls the air pressure station 1 to inflate all the second vibration reduction parts 14, so that the power device unit and the working vehicle 15 are isolated from each other in a vibration mode;
s5, controlling the hydraulic station 2 to control the lifting oil cylinder 4 to descend by the central controller;
s6, the laser range finder 11 monitors the distance between the water jet knife 10 and the steel rail 16 in real time and transmits monitoring data to the central controller;
s7, after judging that the lifting frame 12 reaches a designated position, the central controller gives a stop instruction to the hydraulic station 2 to stop the lifting cylinder 4 and lock the position of the lifting frame 12;
s8, simultaneously controlling the air pressure station 1 to supply air for the locking brake 5 by the central controller, so that the locking brake 5 is switched from a brake starting state to a brake closing state, and doubly locking the position of the lifting frame 12;
s9, the central controller controls the water jet cutters 10 to polish the surface of the steel rail according to a certain movement track;
s10, after finishing polishing operation, the central controller controls the air pressure station 1 to release air for the locking brake 5, so that the locking brake 5 is switched from a closing state to a brake starting state, and the position of the lifting frame 12 is unlocked;
s11, the central controller gives an instruction to the hydraulic station 2 to reset the lifting oil cylinder 4;
s12, the central controller controls the air pressure station 1 to deflate all air cushions;
s13, controlling the power-off of the storage battery by the central controller;
and S14, the whole working vehicle 15 is moved to a next working area.
In the embodiment of the invention, the first vibration reduction part 13 and the second vibration reduction part 14 realize double vibration isolation between the power device unit and the working vehicle 15 as well as between the lifting locking unit and the working vehicle 15, so that the stability of water jet polishing operation is prevented from being interfered by vibration; the lifting double locking of the system is realized through the lifting oil cylinder 4 and the locking brake 5, the precision of system control is improved, the lifting process of the system is more stable, the positioning is more accurate, and the smooth implementation of the water jet rail polishing technology is ensured. The system can be refitted on the existing track flat car, is simple and easy to implement, has low manufacturing cost, can solve the problem that the stability of the water jet polishing steel rail technology is easily interfered by external vibration and the polishing precision is not easy to control, and ensures the quality of the water jet polishing steel rail.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (9)
1. Steel rail water jet polishing operation lifting system based on data processing, which is characterized by comprising:
a power plant unit provided on the work vehicle (15) and providing electric, pneumatic and hydraulic power for the system operation;
the lifting positioning unit comprises a door subframe (3) arranged on the working vehicle (15), a lifting oil cylinder (4) with one end fixedly arranged on the door subframe (3), a lifting frame (12) arranged at the other end of the lifting oil cylinder (4), lifting guide mechanisms (6) arranged at the side edges of the lifting frame (12) and used for keeping fixed relative distances between two sides of the lifting frame (12) and the door subframe (3), and a laser range finder (11) arranged at the bottom of the lifting frame (12) and used for detecting the distance between a water jet knife (10) and a steel rail in real time, wherein the laser range finder (11) is used for measuring data in real time, and the lifting oil cylinder (4) drives the lifting frame (12) to stably lift under the guide of the lifting guide mechanisms (6) so that the water jet knife (10) loaded on the lifting frame (12) accurately descends to a polishing point; the outer side of the lifting frame (12) is provided with a locking brake (5), which comprises a high-pressure air pipe (502) with the bottom arranged on the outer side wall surface of the lifting frame (12), a friction plate (503) arranged at the top of the high-pressure air pipe (502) and a tension spring (501) for connecting the friction plate (503) with the outer side wall surface of the lifting frame (12); the high-pressure air pipe (502) inputs high-pressure air, extends outwards, pushes the friction plate (503) to the inner side wall surface of the door subframe (3) and compresses and adheres the friction plate, the switching of the locking brake (5) from a brake starting state to a brake closing state is completed, the locking brakes (5) symmetrically arranged at two sides of the lifting frame (12) are used for simultaneously closing the brake, the lifting cylinder (4) is matched for self-locking, and the lifting frame (12) is locked in all directions during the polishing operation of the water jet knife (10);
the control unit is in communication connection with the power device unit and the lifting positioning unit and comprises a central controller;
the control unit controls the power device unit to simultaneously provide power for the lifting positioning units according to the polishing operation time sequence, and the water jet cutters (10) mounted on the lifting positioning units of each group are lowered to different heights according to the real-time uploading measurement data of the laser range finder (11), so that efficient and accurate collaborative polishing can be performed when different steel rail polishing surfaces are handled.
2. A rail water jet polishing operation lifting system based on data processing according to claim 1, wherein the bottom of the power unit is provided with a second vibration reduction part (14) for isolating vibration conducted to the direction of the operation vehicle (15) during operation of the power unit;
a plurality of groups of fixed brackets are symmetrically arranged at the outer side of the bottom of the door subframe (3), and a first vibration reduction part (13) is arranged at the bottom of the fixed brackets to be connected with the operation vehicle (15) so as to prevent vibration conducted along the operation vehicle (15) to the door subframe (3);
the first vibration reduction part (13) and the second vibration reduction part (14) realize bidirectional vibration isolation of the water jet knife.
3. A rail water jet polishing work lifting system based on data processing according to any one of claims 1-2, wherein the lifting guide mechanism (6) comprises a guide wheel and a connecting shaft, the guide wheel is abutted against the inner side wall of the door subframe (3), one end of the connecting shaft is connected with the guide wheel, and the other end of the connecting shaft is fixed on the side edge of the lifting frame (12).
4. A rail water jet polishing operation lifting system based on data processing according to any one of claims 1-2, wherein the lifting guide mechanism (6) comprises a limiting sliding groove arranged on the inner side wall of the door subframe (3) in the vertical direction, a sliding block arranged in the limiting sliding groove, and a connecting shaft connected with the sliding block and the side edge of the lifting frame (12) respectively through two ends.
5. The steel rail water jet polishing operation lifting system based on data processing according to any one of claims 1-2, wherein the power device unit is arranged at two ends of the operation vehicle (15) and comprises a pneumatic station (1) and a hydraulic station (2) which are arranged at one end of the operation vehicle (15), and a storage battery (7) and a fuel generator (8) which are arranged at the other end of the operation vehicle (15); the power unit outputs power through a pneumatic pipeline, a hydraulic pipeline and a cable which are arranged in the gas-liquid pipe groove (9) in a centralized mode.
6. A rail water jet polishing work lifting system based on data processing according to any one of claims 1-2, characterized in that the lifting positioning units are provided with two groups in sequence above each side rail, each group of lifting positioning units is loaded with four groups of water jet knives (10).
7. A rail water jet polishing work lifting system based on data processing according to claim 2, wherein the first vibration reduction part (13) is an air spring, and the second vibration reduction part (14) is made of an air cushion.
8. The lifting system for steel rail water jet polishing operation based on data processing according to claim 7, wherein the air cushion is connected with the air pressure station (1) through an air pressure pipeline, and an air pressure sensor is arranged in the air cushion.
9. A method of operating a data processing based rail water jet polishing work lifting system, implemented using a data processing based rail water jet polishing work lifting system as claimed in any one of claims 1 to 8, comprising the steps of:
s1: the operation vehicle (15) is integrally moved to an operation area by the rail vehicle;
s2, before the operation starts, the fuel generator (8) works to charge the storage battery (7);
s3: starting operation, stopping the fuel generator (8), and supplying power to the whole system by the storage battery (7);
s4, performing S4; the central controller controls the air pressure station (1) to inflate all the second vibration reduction parts (14) so as to make the power device unit and the working vehicle (15) perform vibration isolation;
s5, the central controller controls the hydraulic station (2) to control the lifting oil cylinder (4) to descend;
s6, a laser range finder (11) monitors the distance between the water jet knife (10) and the steel rail (16) in real time and transmits monitoring data to a central controller;
s7, after judging that the lifting frame (12) reaches a designated position, the central controller gives a stop instruction to the hydraulic station (2) to stop the lifting cylinder (4) and lock the position of the lifting frame (12);
s8, simultaneously controlling the air pressure station (1) to supply air for the locking brake (5) by the central controller, so that the locking brake (5) is switched from a brake starting state to a brake closing state, and doubly locking the position of the lifting frame (12);
s9, the central controller controls a plurality of groups of water jet cutters (10) to polish the surface of the steel rail according to a certain movement track;
s10, after finishing polishing operation, the central controller controls the air pressure station (1) to release air for the locking brake (5), so that the locking brake (5) is switched from a closing state to a brake starting state, and the position of the lifting frame (12) is unlocked;
s11, the central controller gives an instruction to the hydraulic station (2) to reset the lifting oil cylinder (4);
s12, the central controller controls the air pressure station (1) to deflate all air cushions;
s13, the central controller controls the storage battery (7) to be powered off;
and S14, the whole working vehicle (15) is moved to the next working area.
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| CN202210407651.7A CN114703708B (en) | 2022-04-19 | 2022-04-19 | Steel rail water jet polishing operation lifting system based on data processing and operation method |
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| CN202210407651.7A CN114703708B (en) | 2022-04-19 | 2022-04-19 | Steel rail water jet polishing operation lifting system based on data processing and operation method |
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| CN114703708A (en) | 2022-07-05 |
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