CN114703708A - 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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- CN114703708A CN114703708A CN202210407651.7A CN202210407651A CN114703708A CN 114703708 A CN114703708 A CN 114703708A CN 202210407651 A CN202210407651 A CN 202210407651A CN 114703708 A CN114703708 A CN 114703708A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 53
- 239000010959 steel Substances 0.000 title claims abstract description 53
- 238000005498 polishing Methods 0.000 title claims abstract description 37
- 238000012545 processing Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 230000009467 reduction Effects 0.000 claims abstract description 10
- 238000000227 grinding Methods 0.000 claims description 52
- 238000013016 damping Methods 0.000 claims description 26
- 238000003860 storage Methods 0.000 claims description 18
- 239000000446 fuel Substances 0.000 claims description 13
- 238000002955 isolation Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 8
- 230000002457 bidirectional effect Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 22
- 238000005516 engineering process Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 229910001651 emery Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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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 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, data are measured in real time through the laser range finder, the control unit controls the lifting oil cylinder to drive the lifting frame to stably lift under the guide of the lifting guide mechanism, a water jet cutter loaded on the lifting frame accurately descends to a polishing point, the locking gate is switched on and matched with the lifting oil cylinder for self-locking, and the lifting frame is locked in all directions during polishing operation; the second vibration reduction part is arranged at the bottom of the power device unit, the first vibration reduction part is arranged at the bottom of the door frame, vibration conduction is blocked, and the water jet cutter can stably perform polishing operation, so that polishing precision is improved.
Description
Technical Field
The invention belongs to the technical field of steel rail grinding, and particularly relates to a steel rail water jet grinding operation lifting system based on data processing and an operation method.
Background
The railway, intercity, urban railway and urban rail transit in China are rapidly developed, the operation mileage reaches huge scale, under the background of railway speed increase, the direct bearing infrastructure of the train, namely the steel rail, bears huge operation pressure, and due to the wheel rail effect, the steel rail can generate serious abrasion and other defects in the service period, the service life of the steel rail is obviously shortened, and the replacement of a large number of steel rails is carried out every year, so that huge economic loss is caused, and the service life of the steel rail is prolonged, and the method has great significance for the operation, maintenance and repair of railway and urban rail transit in China.
Traditional rail wearing and tearing maintenance mode is through small-size equipment or large-scale road maintaining machinery with the help of the emery wheel to the rail to polish and repair the type, reduces wearing and tearing to the influence in rail life-span, but the mode of emery wheel rail of polishing can produce a large amount of heats because of the operation in-process, easily causes rail surface burn, produces destruction to rail material attribute, is unfavorable for extension rail life.
The water jet technology can be applied to steel rail grinding due to the advantages of low heat and environmental protection, but the water jet technology for grinding the steel rail still has the following problems to be solved: (1) at the present stage, a lifting system which is mature and applied to the water jet steel rail grinding technology does not exist, a method for controlling a plurality of groups of water jet cutters does not exist, and the water jet cutters cannot be lifted to different heights to be ground in a coordinated mode corresponding to different grinding surfaces, so that the efficiency of the water jet cutters on steel rail grinding is improved; (2) when the water jet technology is applied to steel rail grinding, equipment arranged on a grinding operation vehicle is easy to vibrate during working, a water jet cutter is easy to deviate during lifting, and the positioning precision cannot be guaranteed; (3) when the water jet technology is applied to steel rail grinding, the water jet technology faces a plurality of vibration sources on a steel rail operation vehicle, is extremely easy to interfere, and the grinding precision is not easy to control.
Disclosure of Invention
Aiming at the problems that a lifting system which is not mature and applied to a water jet steel rail grinding technology exists in the prior art, and a water jet cutter is easily interfered by a vibration source during lifting and grinding operation, so that the positioning precision is reduced, and the grinding effect is poor, the invention provides a steel rail water jet grinding operation lifting system and an operation method based on data processing.
In order to achieve the aim, the invention provides a steel rail water jet grinding operation lifting system based on data processing, which comprises a power device unit arranged on an operation vehicle, wherein the power device unit provides electric power, pneumatic power and hydraulic power for the operation of the system; the lifting positioning units are arranged in the middle of the operation vehicle and comprise a door frame arranged on the operation 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 on the side edge of the lifting frame and used for keeping a fixed relative distance between the 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 cutter and a steel rail in real time; 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 plurality of groups of lifting positioning units according to the polishing operation time sequence, and the water jet cutters carried on the lifting positioning units are lowered to different heights according to the real-time uploading of the measurement data of the laser range finder, so that efficient and accurate collaborative polishing can be performed when different steel rail polishing surfaces are processed.
Furthermore, a locking gate is arranged on the outer side of the lifting frame and comprises a high-pressure air pipe, a friction plate and a tension spring, wherein the bottom of the high-pressure air pipe is arranged on the outer side wall surface of the lifting frame, the friction plate is arranged at the top of the high-pressure air pipe, and the tension spring is connected with the friction plate and the outer side wall surface of the lifting frame; the pneumatic air pipe inputs high-pressure air to extend outwards to push the friction plate to the inner side wall surface of the door frame and to carry out pressing and fitting, switching of the locking brake from a brake-starting state to a switch-on state is completed, the locking brakes symmetrically arranged on two sides of the lifting frame are switched on simultaneously, the lifting oil cylinder is matched for self-locking, and the lifting frame is locked in all directions during polishing operation of the water jet cutter.
Furthermore, a second vibration damping part is arranged at the bottom of the power device unit and is used for isolating vibration transmitted to the working vehicle when the power device unit works; a plurality of groups of fixed supports are symmetrically arranged on the outer side of the bottom of the door sub-frame, and the bottom of each fixed support is provided with a first vibration damping part to be connected with the operation vehicle, so that vibration transmitted to the door sub-frame along the operation vehicle is blocked; through first damping portion and second damping portion, realized two-way vibration isolation to the water jet sword.
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 in the inner side wall of the door frame 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.
Furthermore, 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 generator which are arranged at the other end of the operation vehicle; the power unit outputs power through a pneumatic pipeline, a hydraulic pipeline and a cable which are intensively laid in the gas-liquid pipe groove.
Furthermore, the lifting positioning units are sequentially provided with two groups above each side steel rail, and each group of lifting positioning units is loaded with four groups of water jet cutters.
Furthermore, the first vibration damping part is an air spring, and the second vibration damping part is made of an air cushion.
Furthermore, 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 an aspect of the invention, there is also provided a method of operating a rail water jet grinding operation hoist system based on data processing, comprising the steps of:
s1: the operation vehicle is integrally transferred to an operation area by the rail vehicle;
s2, before the operation starts, the fuel generator works to charge the storage battery;
s3: when the operation is started, the fuel generator is stopped, and the storage battery supplies power to the whole system;
s4, the central controller controls the air pressure station to inflate all the air cushions, so that the power device unit and the operation vehicle are isolated in a vibration mode;
s5, the central controller controls the hydraulic station to control the lifting oil cylinder to descend;
s6, the laser range finder monitors the distance between the water jet cutter and the steel rail in real time and transmits the monitoring data to the central controller;
s7, the central controller sends a stop instruction to the hydraulic station after judging that the lifting frame reaches the designated position, so that the lifting oil cylinder stops moving and the position of the lifting frame is locked;
s8, simultaneously, the central controller controls the air pressure station to supply air to the locking brake, so that the locking brake is switched from a brake-starting state to a closing state, and the lifting frame is locked doubly;
s9, the central controller controls a plurality of groups of water jet cutters to polish the surface of the steel rail with a certain motion track;
s10, after the polishing operation is finished, the central controller controls the air pressure station to release air for the locking brake, so that the locking brake is switched from a closing state to a starting state, and the position of the lifting frame is unlocked;
s11, the central controller gives an instruction to the hydraulic station to reset the lift cylinder;
s12, the central controller controls the air pressure station to deflate all the air cushions;
s13, the central controller controls the storage battery to be powered off;
and S14, the whole work vehicle is moved to the next work area.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
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 power, gas 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, 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 by the laser range finder so that a water jet cutter 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 lower the water jet cutters carried on the lifting positioning units to different heights so as to deal with different steel rail grinding surfaces and realize efficient and accurate collaborative grinding; the stable lifting system disclosed by the invention is a technical scheme that a plurality of groups of water jet cutters are arched when the water jet technology is applied to steel rail grinding, and the smooth implementation of the water jet technology for grinding the steel rail is ensured.
2. According to the steel rail water jet polishing operation lifting system based on data processing, after the water jet cutter reaches the designated polishing point, the lifting frame is locked in all directions by self-locking of the lifting oil cylinder and attaching and pressing of the locking brake on the inner side wall surface of the door frame, so that the deviation of the lifting frame caused by vibration is avoided, and the positioning precision of the water jet cutter during working is improved.
3. According to the steel rail water jet grinding 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, the first vibration reduction part is arranged at the bottom of the door frame, so that vibration transmission from the operation vehicle to the lifting positioning unit is blocked, bidirectional vibration isolation of the water jet cutter is realized, the water jet cutter is prevented from being interfered, the water jet cutter can stably carry out grinding operation, and the grinding precision is improved.
4. According to the lifting system for the water jet grinding operation of the steel rail based on the data processing, the lifting frame is arranged, so that the two sides of the lifting frame and the door frame keep a fixed relative distance, the lifting frame is guided in the lifting operation process, and is corrected when radial deviation occurs due to vibration, so that the lifting frame can stably carry out lifting operation, and the lifting precision is effectively guaranteed.
Drawings
FIG. 1 is a schematic elevation view of a lowering state of a rail water jet grinding operation lifting system based on data processing in an embodiment of the invention;
fig. 2 is a schematic elevation view of a lifting system for rail water jet grinding operation based on data processing in an embodiment of the present invention;
FIG. 3 is a schematic top view of a rail water jet grinding operation hoist system based on data processing according to an embodiment of the present invention;
FIG. 4 is a schematic left-side view of a rail water jet grinding operation lifting system based on data processing according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a stable lifting unit according to an embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating a stable locking brake-off state of the lifting unit according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a stable locking and closing state of the lifting unit according to the embodiment of the present invention;
FIG. 8 is a diagram of the vibration dual isolation mechanism of the stabilized hoist system in an embodiment of the present invention;
FIG. 9 is a block diagram of the control logic for a rail water jet grinding operation hoist system based on data processing according to an embodiment of the present invention;
FIG. 10 is a flow chart of a method of operating a rail water jet grinding operation hoist system based on data processing according to an embodiment of the present invention.
In all the figures, the same reference numerals denote the same features, in particular: 1-pneumatic station, 2-hydraulic station, 3-door frame, 4-lifting oil cylinder, 5-locking brake, 501-tension spring, 502-high pressure air pipe, 503-friction plate, 6-lifting guide mechanism, 7-storage battery, 8-fuel oil generator, 9-gas-liquid pipe groove, 10-water jet cutter, 11-laser range finder, 12-lifting frame, 13-first damping part, 14-second damping part, 15-working vehicle and 16-steel rail.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the respective embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 to 9, the present invention provides a rail water jet grinding operation lifting system based on data processing and an operation method thereof, the system includes a power device unit, a lifting positioning unit and a control unit, the power device unit is arranged on an operation vehicle 15, and the power device unit provides power for the lifting positioning unit to perform lifting action and lock a water jet cutter 10. The power device unit comprises an air pressure station 1, a hydraulic station 2, a storage battery 7 and a fuel generator 8, the lifting positioning unit comprises a door frame 3 arranged on an operation vehicle 15, a lifting oil cylinder 4 with one end fixedly arranged on the door frame 3, a lifting frame 12 arranged at the other end of the lifting oil cylinder 4, and a locking brake 5 and a lifting guide mechanism 6 for guiding are further arranged on the side edge of the lifting frame 12; when the water jet cutter 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 lifting guide mechanism 6 is used for guiding, the water jet cutter 10 arranged on the lifting frame 12 stably descends to an appointed polishing point, and automatic intelligent lifting adjustment of the water jet cutter 10 is achieved. In the stable lifting system, the bottom of the power device unit is provided with a second vibration damping part 14, so that the vibration generated when the power device unit works is prevented from being transmitted along the direction of the working vehicle 15, a first vibration damping part 13 is arranged between the door frame 3 and the working vehicle 15, the vibration transmission of the working vehicle to the door frame 3, the lifting frame 12 and the water jet cutter is blocked, and the bidirectional isolation of the vibration is realized; after the water jet cutter 10 descends to a polishing point, the lifting frame 12 is doubly locked by self-locking the lifting oil cylinder 4 and switching the locking brakes 5 on the two sides of the lifting frame 12 into a switching-on state, so that the double locking during the lifting and positioning of the system is realized; the lifting system improves the stability of system control through the two-way isolation of vibration and double locking during the lowering and positioning, so that the water jet cutter 10 is more stable in the lifting process and more accurate in positioning, and the smooth implementation of the water jet grinding technology for the steel rail 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 at the middle part of the working vehicle 15, and the vibration generated when the power unit works is effectively attenuated as the distance between the power unit and the stable lifting unit increases. In a preferred embodiment of the invention, the power unit comprises a pneumatic station 1 and a hydraulic station 2 arranged at one end of a work vehicle 15, a battery 7 and a fuel generator 8 arranged at the other end of the work vehicle 15. The air pressure station 1 provides air pressure power for the lifting positioning unit through an air starting pressure pipeline and is used for locking the lock 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 cutter 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 intensively laid through a gas-liquid pipe groove 9 arranged on the working vehicle 15. In order to prevent the vibration generated when the power unit works from being conducted along the working vehicle 15 so as to influence the grinding precision of the water jet cutter 10, when the power unit is arranged away from the lifting positioning unit, a second vibration damping part 14 is also arranged between the bottom of the power unit and the working vehicle 15 and blocks the vibration from being conducted along the working vehicle 15 by slowing down and absorbing the energy generated by the vibration, and the second vibration damping part 14 is made of a vibration damping material; preferably, the second vibration damping 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, the air pressure station 1 is timely controlled to be pressurized when the pressure in the air cushion is reduced, and the polishing precision of the water jet cutter 10 is prevented from being influenced by the reduction of the vibration reduction effect of the second vibration reduction part 14 caused by insufficient air pressure.
The lifting positioning units are arranged in the middle of the operation vehicle 15 and can be provided with a plurality of groups according to the rail grinding efficiency requirements, in the preferred embodiment of the invention, two groups of lifting positioning units are sequentially arranged above each side of the steel rail, each group of lifting positioning units is loaded with four groups of water jet cutters 10, and 16 groups of water jet cutters 10 are used for grinding the steel rails 16 on two sides simultaneously, so that the rail grinding efficiency is improved; furthermore, 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 lower the water jet cutters 10 carried on the lifting positioning units to different heights so as to deal with different steel rail grinding surfaces, and efficient and accurate collaborative grinding is achieved.
As shown in fig. 4-5, the lifting and positioning unit includes a door frame 3, a lifting cylinder 4, a locking gate 5, a lifting guide mechanism 6, a laser distance meter 11, a lifting frame 12, and a first vibration damping part 13. Wherein, 3 bottom outside symmetries of door sub-frame are equipped with multiunit fixed bolster, the fixed bolster bottom is realized being connected with operation car 15 through being equipped with first damping portion 13, through first damping portion 13 can the separation along the vibration of operation car 15 to door sub-frame 3 conduction, makes multiunit water jet sword 10 can steadily carry out the work of polishing, has effectively improved the precision of polishing, preferably, first damping portion 13 optional air spring, when the absorbing, it has advantages such as the quality is little, the travelling comfort is good, resistant fatigue, long service life.
The two ends of the top in the door frame 3 are respectively provided with a lifting oil cylinder 4, so that lifting work can be synchronously performed, the top of a piston rod of the lifting oil cylinder 4 is fixedly connected with the top of the lifting frame 12, lifting work is performed under the driving of the piston rod of the lifting oil cylinder 4, the lifting oil cylinder 4 can be self-locked after the lifting work is completed, and the lifting frame 12 is prevented from moving up and down due to external vibration factors.
In order to prevent the lifting frame 12 from radial deviation during lifting operation, the side edge of the lifting frame 12 is provided with a lifting guide mechanism 6, and the lifting frame 12 effectively avoids the radial deviation phenomenon by keeping 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, when lifting operation is carried out, the guide wheel on the side surface of the lifting frame 12 rotates and walks along the inner side surface of the door frame 3 to guide the lifting of the lifting frame 12, and radial deviation is avoided when vibration occurs; preferably, lift guiding mechanism 6 locates the sliding block in the spacing sliding tray including locating the spacing sliding tray of vertical direction on 3 inside walls of door frame to and connect the connecting axle of sliding block and crane 12 sides respectively through both ends, the sliding block carries out vertical direction displacement in spacing sliding tray, and its radial displacement is limited, can effectively resist horizontal yawing force, and crane 12 passes through connecting axle and sliding block fixed connection, and under the direction of slider, when the lift operation in-process of crane 12 takes place to vibrate and appears radial offset, carries on spacingly through spacing sliding tray, can rectify crane 12, makes the lift precision of crane 12 obtain effective guarantee.
The laser range finder 11 is arranged at the bottom of the lifting frame 12, detects the distance between the water jet cutter 10 and the steel rail in real time, and transmits monitoring data to the control unit. When different steel rail grinding surfaces are met, the control unit can respectively adjust the lifting height of each group of water jet cutters 10 according to parameter configuration, so that the multiple groups of water jet cutters 10 can be used for high-efficiency and accurate collaborative grinding.
When the water jet cutter 10 is polished, in order to prevent the water jet cutter 10 from being interfered by vibration and influencing the positioning precision of the water jet cutter, the lifting frame 12 loading the water jet cutter 10 is further locked by the locking brake 5. The locking gate 5 is arranged on the outer side of the lifting frame 12, the structure of the locking gate is shown in fig. 6-7, and the locking gate comprises a tension spring 501, a high-pressure air pipe 502 and a friction plate 503, the top of the high-pressure air pipe 502 is fixedly connected with the friction plate 503, 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, and the locking gate stretches under the action of high-pressure air. The top of the friction plate 503 is provided with a friction surface which is tightly attached to the inner side wall surface of the door frame 3, so that the resistance force of the friction plate 503 during moving can be increased; 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 is deflated. Locking floodgate 5 during operation, atmospheric pressure station 1 inputs high-pressure gas under the control of the control unit, and high-pressure air pipe 502 outwards extends and pushes up friction plate 503 to the 3 inside wall faces of door frame and compresses tightly the laminating, accomplishes locking floodgate 5 by the switching-on state of starting the floodgate state, through the locking floodgate 5 of a plurality of symmetries settings in crane 12 both sides, die through the lock with the skew of crane 12 vertical and horizontal direction, can effectively avoid crane 12 to take place the drunkenness under the condition that receives the vibration, thereby influence the precision of water jet sword 10 location when polishing.
In the embodiment of the invention, when the lifting positioning unit passes through the lifting guide mechanism 6, the lifting frame 12 is more stable in the collection process, and the water jet cutter 10 can be accurately lowered to an appointed polishing point by matching with the laser range finder 11; after the water jet cutter 10 reaches the designated polishing point, the lifting cylinder 4 is self-locked and the locking brake 5 is attached to the inner side wall surface of the door frame 3, so that the lifting frame 12 is locked in all directions, the deviation caused by vibration is avoided, and the positioning precision of the water jet cutter 10 during working is improved.
In the embodiment of the invention, as shown in fig. 9, the stable lifting system is subjected to vibration double isolation, namely, the second vibration damping part 14 is arranged at the bottom of the power unit to isolate the vibration generated during the operation of the power unit from being transmitted to the direction of the operation vehicle 15, the first vibration damping part 13 is arranged at the bottom of the door frame 3 to block the vibration transmission of the operation vehicle 15 to the direction of the lifting positioning unit, so that the bidirectional vibration isolation of the water jet cutter 10 is realized, the water jet cutter 10 is prevented from being interfered, the water jet cutter can be stably polished, and the polishing precision is improved.
As shown in fig. 9, in the embodiment of the present invention, the control unit includes a central controller, which is in communication connection with the storage battery 7 and the fuel generator 8, and controls the fuel generator 8 to start and operate to charge the storage battery 7, and controls the storage battery 7 to supply power to other electric devices in the system; through the communication connection with the air pressure station 1, the control unit controls the air pressure station 1 to output high-pressure air to the second vibration reduction part 14 and the locking gate 5; through the communication connection with the hydraulic station 2, the control unit controls the hydraulic station 2 to deliver hydraulic power to the lift cylinder 4.
As shown in fig. 10, an embodiment of the present invention further provides a method for operating a lifting system for a water jet rail grinding operation based on data processing, including the steps of:
s1: the working vehicle 15 is integrally moved to the working area by the railcar;
s2, before the operation starts, the fuel generator 8 works to charge the storage battery 7;
s3: when the operation is started, the fuel generator 8 is stopped, and the storage battery 7 supplies power to the whole system;
s4, the central controller controls the air pressure station 1 to inflate all the air cushions 14 so as to isolate the power device unit from the working vehicle 15 in a vibration mode;
s5, the central controller controls the hydraulic station 2 to control the lifting oil cylinder 4 to descend;
s6, the laser distance measuring instrument 11 monitors the distance between the water jet cutter 10 and the steel rail 16 in real time and transmits monitoring data to the central controller;
s7, the central controller sends a stop instruction to the hydraulic station 2 after judging that the lifting frame 12 reaches the designated position, so that the lifting oil cylinder 4 stops acting, and the position of the lifting frame 12 is locked;
s8, simultaneously, the central controller controls the air pressure station 1 to supply air to the locking brake 5, so that the locking brake 5 is switched from a brake-starting state to a closing state, and the position of the lifting frame 12 is locked doubly;
s9, the central controller controls the water jet cutters 10 to polish the surface of the steel rail according to a certain motion track;
s10, after the polishing operation is finished, 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 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 the air cushions;
s13, the central controller controls the storage battery to be powered off;
and S14, the whole work vehicle 15 moves to the next work area.
In the embodiment of the invention, the vibration double isolation between the power device unit and the working vehicle 15 and between the lifting locking unit and the working vehicle 15 is realized through the first vibration damping part 13 and the second vibration damping part 14, so that the stability of the 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 polishing steel rail technology is ensured. The system can be modified on the existing track flat car, is simple and easy to implement, is low in manufacturing cost, can solve the problem that the water jet polishing steel rail technology faces the problem that stability is easily interfered by external vibration and polishing precision is not easy to control, and ensures the quality of the water jet polishing steel rail.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A rail water jet operation operating lift system that polishes based on data processing, its characterized in that includes:
a power unit arranged on the working vehicle (15) and used for providing electric, pneumatic and hydraulic power for the system operation;
a plurality of groups of lifting positioning units arranged in the middle of the operation vehicle (15), which comprises a door frame (3) arranged on the operation vehicle (15), a lifting oil cylinder (4) with one end fixed on the door frame (3), a lifting frame (12) arranged at the other end of the lifting oil cylinder (4), a lifting guide mechanism (6) arranged at the side edge of the lifting frame (12) to ensure that the two sides of the lifting frame (12) keep a fixed relative distance with the door frame (3), and a laser range finder (11) arranged at the bottom of the lifting frame (12) and used for detecting the distance between the water jet cutter (10) and the steel rail in real time, the data are measured in real time through the laser range finder (11), the lifting oil cylinder (4) drives the lifting frame (12) to stably lift under the guidance of the lifting guide mechanism (6), so that the water jet cutter (10) loaded on the lifting frame (12) 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 simultaneously provide power for the plurality of groups of lifting positioning units according to the polishing operation time sequence, and water jet cutters (10) carried on the lifting positioning units are lowered to different heights according to real-time uploading of 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 processed.
2. The lifting system for the water jet grinding operation of the steel rail based on the data processing is characterized in that a locking brake (5) is arranged on the outer side of the lifting frame (12) and 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 to extend outwards to enable the friction plate (503) to be jacked to the inner side wall surface of the door frame (3) and to be compressed and attached, switching of the locking brake (5) from a brake-starting state to a closing state is completed, the locking brakes (5) which are symmetrically arranged on two sides of the lifting frame (12) are closed simultaneously, self-locking is achieved through the lifting oil cylinder (4), and the lifting frame (12) is locked in an all-directional mode when the water jet cutter (10) is polished.
3. A lifting system for water jet grinding operation of steel rail based on data processing according to claim 2, characterized in that the bottom of the power unit is provided with a second vibration damping part (14) for isolating vibration transmitted to the operation vehicle (15) when the power unit is operated;
a plurality of groups of fixed supports are symmetrically arranged on the outer side of the bottom of the door frame (3), a first vibration damping part (13) is arranged at the bottom of each fixed support to be connected with an operation vehicle (15), and vibration transmitted to the door frame (3) along the operation vehicle (15) is blocked;
the first vibration reduction part (13) and the second vibration reduction part (14) realize bidirectional vibration isolation of the water jet cutter.
4. A rail water jet grinding operation lifting system based on data processing according to any one of claims 1-3, characterized in that 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, and the other end is fixed on the side of the lifting frame (12).
5. A rail water jet grinding operation lifting system based on data processing according to any one of claims 1-3, characterized in that the lifting guide mechanism (6) comprises a limit sliding groove arranged on the inner side wall of the door frame (3) in the vertical direction, a sliding block arranged in the limit sliding groove, and a connecting shaft respectively connecting the sliding block and the side edge of the lifting frame (12) through two ends.
6. The lifting system for the water jet grinding operation of the steel rail based on the data processing is characterized in that the power device units are arranged at two ends of an operation vehicle (15) and comprise an air pressure station (1) and a hydraulic pressure 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 intensively laid in the gas-liquid pipe groove (9).
7. A rail water jet grinding operation lifting system based on data processing according to any one of claims 1-3, characterized in that the lifting positioning units are sequentially provided with two groups above each side of the rail, and each group of lifting positioning units is loaded with four groups of water jet cutters (10).
8. A data processing based rail water jet grinding operation lifting system according to claim 3, wherein the first damping part (13) is an air spring, and the second damping part (14) is made of an air cushion.
9. A rail water jet grinding operation lifting system based on data processing according to claim 8, characterized in that 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.
10. A method for operating a lifting system for a data-processing-based rail water jet grinding operation, which is implemented by applying the lifting system for the data-processing-based rail water jet grinding operation according to any one of claims 1 to 9, comprising the following steps:
s1: the working vehicle (15) is wholly moved to a working area by the rail vehicle;
s2, before the operation starts, the fuel generator (8) works to charge the storage battery (7);
s3: when the operation is started, the fuel generator (8) is stopped, and the storage battery (7) supplies power to the whole system;
s4, the central controller controls the air pressure station (1) to inflate all the air cushions (14) so as to lead the power device unit and the operation vehicle (15) to carry out vibration isolation;
s5, the central controller controls the hydraulic station (2) to control the lifting oil cylinder (4) to descend;
s6, the laser distance measuring instrument (11) monitors the distance between the water jet cutter (10) and the steel rail (16) in real time and transmits monitoring data to the central controller;
s7, the central controller sends a stop instruction to the hydraulic station (2) after judging that the lifting frame (12) reaches the designated position, so that the lifting oil cylinder (4) stops moving, and the position of the lifting frame (12) is locked;
s8, simultaneously, the central controller controls the air pressure station (1) to supply air to the locking brake (5) so that the locking brake (5) is switched from a brake-starting state to a closing state, and the position of the double-locking lifting frame (12) is locked;
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 motion track;
s10, after the polishing operation is finished, 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 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 the air cushions;
s13, the central controller controls the storage battery (7) to be powered off;
and S14, the whole work vehicle (15) moves to the next work 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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