CN111451844A - Construction organization method and equipment for rapid grinding operation of steel rail - Google Patents
Construction organization method and equipment for rapid grinding operation of steel rail Download PDFInfo
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- CN111451844A CN111451844A CN201911349099.5A CN201911349099A CN111451844A CN 111451844 A CN111451844 A CN 111451844A CN 201911349099 A CN201911349099 A CN 201911349099A CN 111451844 A CN111451844 A CN 111451844A
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- grinding
- grinding wheel
- trolley
- polishing
- frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/004—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding rails, T, I, H or other similar profiles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
Abstract
The invention relates to a construction organization method and equipment for steel rail quick polishing operation. The invention provides theoretical support and construction guidance for rapid grinding operation of the steel rail in an organized and organized manner, effectively improves the working efficiency and ensures the normal operation of a track line. The steel rail rapid polishing equipment comprises a polishing trolley frame (1), wherein the middle part of the polishing trolley frame (1) is set to be in an arched shape, a polishing trolley (3) is arranged below the arched part, the polishing trolley (3) comprises a polishing trolley frame (10) and a track gauge supporting mechanism (14), and the track gauge supporting mechanism (14) is connected with the polishing trolley frame (10) through a connecting rod mechanism (25), a damping spring (23) and a hydraulic buffer (24). The steel rail grinding wheel can ensure that the grinding wheel acts on the steel rail stably, and the grinding effect is better.
Description
Technical Field
The invention relates to a railway maintenance operation method and equipment, in particular to a construction organization method and equipment for rapid grinding operation of a steel rail.
Background
As a key component in railway operation, a rail plays a role in guiding a vehicle to run and directly bearing a dynamic load generated during train operation, and fatigue is inevitably generated on the surface and even inside of the rail or various damages such as corrugation, cracks, fat edges, peeling and the like are inevitably generated from the beginning of laying and using of the rail due to the material and the structural reason of the rail and under the influence of complicated and variable loads and stresses in the actual operation of a train.
If the damage of the steel rail is not processed and controlled in time, the steel rail can be out of work due to the deterioration of the diseases, and the damage of the steel rail can cause the sudden damage of the wheel rail, seriously affect the normal operation of a railway transportation system and even have the risk of the occurrence of train derailment accidents.
At present, the online grinding of the steel rail is an effective technical means for preventing and repairing the steel rail diseases. The damage of the rail surface can be repaired or reduced by polishing, the generation of diseases such as contact fatigue, corrugation and the like is prevented, the matching relation of the wheel rail is effectively improved, the running quality of a train is improved, and the service life of the steel rail is prolonged. The prior domestic common rail grinding wagon has the technical defects that: the grinding quantity is large, the grinding speed is usually between 5-16 km/h, the steel rail grinding machine is usually positioned in the repairing grinding, the steel rail grinding machine is only suitable for severe steel rail diseases, the environmental protection performance is poor, and the maintenance requirements of high-speed railways and urban subways are difficult to meet. Although the emergence of the rail rapid grinding wagon makes the problem be solved, the prior rail rapid grinding technology and application are not perfect and mature, and the following technical problems still exist: as the polishing operation speed is as high as 80km/h, the construction rhythm is faster, and the phenomena of misoperation, incomplete operation, complicated and disordered operation sequence and the like are easily caused in the polishing construction organization operation, a scientific and reliable polishing construction organization construction method is needed to solve the technical problems.
The invention relates to a multifunctional steel rail grinding vehicle with the patent number Z L201910293432.9, which comprises a power vehicle, an iron scrap recovery device and a multifunctional grinding trolley, wherein a first wheel pair and a second wheel pair are arranged below the power vehicle, the iron scrap recovery device and the multifunctional grinding trolley are both connected with the power vehicle, the power vehicle drives the iron scrap recovery device and the multifunctional grinding trolley to move, the multifunctional grinding trolley is used for grinding a steel rail, and the iron scrap recovery device is used for recovering iron scraps generated in the grinding process.
The invention relates to a rail high-speed grinding train with a Z L201310010187.9 patent, which comprises a grinding operation vehicle and a grinding device with a grinding component, and further comprises a grinding frame, wherein the grinding frame is a square frame formed by oppositely arranging two U-shaped beams and integrally connecting the two U-shaped beams through a short beam, the two ends of the short beam are connected with the U-shaped beams through pin shafts, the short beam can slide up and down along pin shafts, the two grinding components are arranged in the grinding frame in parallel, the two ends of the rotary frame are rotatably connected with the grinding frame, at least one end of the rotary frame is provided with a rotary driving device, the upper part of the grinding frame is hinged with the bottom of a carriage of the grinding operation vehicle through a lifting oil cylinder, and the lower part of the grinding frame is provided with a supporting wheel.
Disclosure of Invention
In order to solve the technical defects of the conventional multifunctional steel rail grinding wagon and the operation method, the invention provides a construction organization method for rapid grinding operation of steel rails, which aims to solve the technical problems of disordered construction organization, low efficiency and easy error of the conventional steel rail rapid grinding wagon and help newly added constructors to be familiar with the construction organization of rapid grinding of the steel rails.
The technical scheme of the construction organization method for the rapid grinding operation of the steel rail adopted by the invention is as follows:
a construction organization method for rapid grinding operation of a steel rail comprises a maintenance mode, an operation mode and an emergency mode, wherein the maintenance mode comprises new installation of a grinding wheel, replacement of the grinding wheel and storage and supply of the grinding wheel.
Preferably, the new installation of the grinding wheel refers to the installation of the new grinding wheel on the grinding trolley under the condition that no grinding wheel exists, and the method comprises the following steps: firstly, unlocking a grinding wheel mounting seat at a grinding wheel replacing station, framing a new grinding wheel out of a stored grinding wheel frame, placing the grinding wheels to the grinding wheel mounting seat one by one until the grinding wheel mounting seats on a current grinding beam are completely filled with the grinding wheels or reach the required number, and locking the grinding wheels by the grinding wheel mounting seat; and secondly, judging whether other grinding beams need to be provided with grinding wheels or not, if not, finishing the new grinding wheel mounting process, if so, controlling the grinding beams to rotate by the rotating mechanism, enabling the other grinding beams to sequentially rotate to a grinding wheel replacing station to execute the grinding wheel mounting step, and repeating the steps until the grinding wheels are mounted completely, and finishing the new grinding wheel mounting process.
In any of the above schemes, preferably, the grinding wheel replacement refers to a grinding wheel replacement process performed under the condition that a grinding wheel is already on the polishing trolley, and includes the following steps: firstly, unlocking a grinding wheel replacement working position, unloading an old grinding wheel to be replaced, moving the old grinding wheel into a grinding wheel frame for storage, mounting a new grinding wheel on a grinding wheel mounting seat in an out-frame mode, and locking the grinding wheel by a locking mechanism on the grinding wheel mounting seat after the new grinding wheel is mounted; and secondly, judging whether other grinding beams need to be replaced, if not, finishing the grinding wheel replacing process, if so, controlling the grinding beams to rotate by the rotating mechanism, enabling the other grinding beams to sequentially rotate to a grinding wheel replacing station to execute the grinding wheel replacing step, and if so, circulating until the grinding wheel is replaced, finishing the grinding wheel replacing process.
In any of the above aspects, preferably, the internal sequence of the grinding wheel replacement process may be adjusted as needed, and the method at least includes the following adjustment methods: an old grinding wheel is disassembled and a new grinding wheel is replaced; or a plurality of old grinding wheels are firstly disassembled, and then new grinding wheels are replaced according to requirements; or all the old grinding wheels are firstly detached, and then new grinding wheels are replaced as required; the in-out frame of the new grinding wheel and the old grinding wheel is firstly put into the frame by the new grinding wheel, or the new grinding wheel is firstly put into the frame by the old grinding wheel and then put out of the frame, or the in-out frame of the new grinding wheel and the old grinding wheel is simultaneously put into and put out of the frame by the new grinding wheel.
In any of the above schemes, preferably, the storage and replenishment of the grinding wheel refers to a process of replenishing a new grinding wheel to a rail rapid grinding wagon, and the method includes the following steps: the method comprises the steps that firstly, after a side door of a grinding room working position on a steel rail quick grinding vehicle is opened and a lifting device is unlocked, the lifting device lifts a grinding wheel frame, in which a used grinding wheel is stored, in the crane, and moves the grinding wheel frame out of the vehicle to put down, then the lifting device resets to continue to execute the work of moving the used grinding wheel frame out of the vehicle until the work of moving the used grinding wheel frame out of the vehicle is completed, then the lifting device moves to the working position outside the vehicle to lift the grinding wheel frame, in which a new grinding wheel is stored, moves the grinding wheel frame out of the vehicle and places the grinding wheel frame to a designated position, the working position of the reset parking place continues to execute the work.
In any of the above aspects, it is preferable that the internal sequence of the grinding wheel storage replenishment flow path is adjustable as necessary, and the method includes at least the following adjustment methods: the grinding wheel frame storing the old grinding wheel is moved out of the vehicle firstly, and then the grinding wheel frame storing the new grinding wheel is moved out of the vehicle; or the grinding wheel frame storing the new grinding wheel is moved out of the vehicle firstly, and then the grinding wheel frame storing the old grinding wheel is moved out of the vehicle; or the two may be alternated.
In any one of the above aspects, preferably, the operation mode includes the steps of:
1) a lifting locking mechanism of the polishing trolley is unlocked, and the polishing trolley is lowered by the action of a lifting oil cylinder, so that a travelling wheel of the polishing trolley is in contact with a steel rail to provide travelling support;
2) the rail gauge supporting mechanism works, and the pressure of the rail gauge supporting oil cylinder is adjusted in a self-adaptive manner according to the transverse reaction force fed back by the grinding trolley walking wheels, so that the grinding trolley walking wheels act on the steel rail with constant transverse force to prevent the grinding trolley from derailing and eliminate the snake-shaped walking phenomenon of the grinding trolley;
3) the grinding trolley lifting oil cylinder is adjusted to provide a downward pressure in a self-adaptive manner according to the vertical supporting reaction force, so that the grinding trolley acts on the track with constant vertical pressure;
4) the position control mechanism of the polishing trolley adjusts the angle of the polishing beam to match the polishing position requirement of the track, controls the polishing beam to be lowered to enable the grinding wheel to be in contact with the track, and adaptively adjusts the downward pressure to enable the acting force between the grinding wheel and the track to be constant;
5) the rail rapid grinding wagon performs operation walking, the grinding trolley pushing mechanism pushes the grinding trolley, and the grinding trolley passively follows to move to perform rapid grinding operation on the rail;
6) when the abrasion wheel at the operation station is in the limit of loss, the position control mechanism of the polishing trolley lifts the polishing beam and rotates to enable the other row of new abrasion wheels to be in the operation station, and the polishing beam is released and pressed down again to continue operation;
7) when the grinding wheels of each group of grinding units are all damaged, so that the grinding trolley does not have operating conditions any more, the grinding operation is finished, the position control mechanism of the grinding trolley lifts the grinding beam, the grinding trolley lifting oil cylinder lifts the grinding trolley, the lifting locking mechanism locks the grinding trolley, and the operation is stopped.
In any of the above embodiments, the sequence of the internal part of the operation mode flow may be statically or dynamically adjusted as required.
In any of the above schemes, preferably, the control of the angle of the grinding beam can be dynamically adjusted in the grinding operation process according to needs, and during adjustment, the grinding beam and the grinding wheel are required to be lifted away from the steel rail first, and then the grinding beam and the grinding wheel are lowered to continue operation after the angle is adjusted.
In any of the above aspects, preferably, the constant acting force means that the corresponding mechanism is dynamically adjusted during the operation process to realize the constant acting force within a specified range.
In any of the above solutions, it is preferable that the number of execution times of step 6) is determined by the number of grinding beams or according to need.
In any of the above solutions, it is preferable that the work mode does not include a case where the work is manually finished while the grinding carriage can still work normally.
In any of the above schemes, preferably, the emergency mode is a series of measures taken when the operation mode cannot be continued due to an emergency of the grinding trolley, so as to ensure that the grinding trolley can rapidly enter a maintenance or evacuation site without affecting the overall operation of the rail rapid grinding trolley, so as to avoid taking extra 'skylight' time due to anchoring, and ensure the normal operation of the track line, and includes the following steps: after the rail rapid grinding wagon enters the emergency mode, the grinding wagon pump station enters the manual mode, the grinding wagon lifting oil cylinder is enabled to act through the manual mode so as to lift the grinding wagon, and the grinding wagon is locked through the lifting locking mechanism after the grinding wagon is lifted in place, so that maintenance work in the emergency state is achieved or the rail rapid grinding wagon is enabled to be rapidly withdrawn from the site.
The technical scheme of the rapid rail grinding equipment adopted by the invention is as follows:
the utility model provides a rail equipment of polishing fast, includes the car frame of polishing, two bogies around the car frame bottom of polishing is equipped with, the car frame middle part of polishing sets to the hunch-up shape, the dolly of polishing is equipped with to hunch-up position below, the dolly of polishing includes the dolly frame of polishing and gauge supporting mechanism, gauge supporting mechanism with connection structure between the dolly frame of polishing adopts link mechanism and is provided with damping spring and hydraulic buffer.
Preferably, a functional room and a polishing trolley pump station are arranged above the arching part, and a movable floor is arranged in the middle above the arching part.
In any of the above schemes, preferably, the grinding trolley frame is a rectangular frame, the front end and the rear end of the grinding trolley frame are respectively provided with a grinding trolley pushing mechanism, a grinding trolley lifting cylinder and a lifting locking mechanism, the grinding trolley lifting cylinder is connected with the arched part, and the two grinding trolley pushing mechanisms are respectively arranged on the middle upper part of the front end and the rear end of the grinding trolley frame.
In any of the above schemes, it is preferable that a polishing room is arranged in the function room, side doors are arranged on two sides of the polishing room, a lifting device and a grinding wheel frame are arranged in the polishing room, and the grinding wheel frame is set to be a hollow frame, or set to be stored with a new grinding wheel, or set to be stored with an old grinding wheel.
In any of the above schemes, preferably, the polishing trolley comprises a position control mechanism and a polishing beam, and the position control mechanism is mounted on the polishing trolley frame and connected with the polishing beam for controlling the lifting and polishing angle of the polishing beam.
In any of the above schemes, it is preferable that the grinding trolley running wheels are installed at two ends of the grinding beam.
In any of the above schemes, it is preferable that the grinding beam is provided with a grinding wheel which forms a certain angle with the vehicle running direction, the grinding beam is provided with grinding wheel mounting seats arranged in a row in the longitudinal direction, and the grinding wheel mounting seats are provided with locking mechanisms.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, by formulating the steel rail rapid grinding construction organization method comprising the maintenance mode, the operation mode and the emergency mode, theoretical support and construction guidance are provided for the steel rail rapid grinding operation in an organized and organized manner, the technical problems of disorder, no seal and complicated operation redundancy of the conventional steel rail rapid grinding construction are solved, new personnel can be effectively helped to rapidly adapt to and skillfully master the steel rail rapid grinding construction operation, so that misoperation, redundant operation and time waste caused by misoperation are reduced, the working efficiency is effectively improved, the steel rail rapid grinding construction operation service is made by fully and reasonably utilizing the skylight time, and the normal operation of a track line is ensured. According to the invention, the link mechanism with the damping spring and the hydraulic buffer is arranged between the gauge supporting mechanism and the grinding trolley frame, so that the grinding trolley can effectively reduce the vibration influence from the reaction force of the steel rail when passing through the rail with the corrugation, and the grinding wheel can stably act on the steel rail, so that the grinding effect is better. According to the invention, the polishing trolley pushing mechanism is arranged at the upper part of the middle of the front end and the rear end of the polishing trolley frame, so that the polishing trolley can stably and smoothly pass through a curve track with smaller curvature. The rectangular grinding trolley frame is adopted, so that the integral stability of the grinding trolley is better.
Drawings
Fig. 1 is a schematic diagram of a frame structure of a construction organization method for a rapid rail grinding operation according to a preferred embodiment of the present invention.
Fig. 2 is a schematic diagram of a frame structure of a maintenance mode, an operation mode and an emergency mode in the method for organizing the construction of the rapid rail grinding operation according to the present invention.
Fig. 3 is a schematic structural view of a preferred embodiment of the rapid rail grinding apparatus according to the present invention.
Fig. 4 is a partial schematic structural view of a preferred embodiment of the rapid rail grinding apparatus according to the present invention.
Fig. 5 is a top view of a preferred embodiment of a grinding chamber of the rapid rail grinding apparatus according to the present invention.
Fig. 6 is a schematic structural view of a preferred embodiment of a grinding carriage in the rapid rail grinding apparatus according to the present invention.
Fig. 7 is a schematic structural view of a preferred embodiment of a grinding carriage in the rapid rail grinding apparatus according to the present invention.
Fig. 8 is a schematic structural view of a preferred embodiment of a grinding beam in the rapid rail grinding apparatus according to the present invention.
Figure 9 is a schematic view of a preferred embodiment of the end face of the grinding carriage and the connection between the gauge support mechanism and the grinding carriage frame in the rail rapid grinding apparatus according to the present invention.
Description of reference numerals:
1, polishing a car frame; 2, a bogie; 3, polishing the trolley; 4, polishing a trolley pump station; 5, grinding wheel frame; 6 hoisting the device; 7, a movable floor; 8, a polishing trolley pushing mechanism; 9, polishing the travelling wheels of the trolley; 10, polishing the trolley frame; 11, polishing the beam; 12 polishing the trolley lifting oil cylinder; 13 grinding wheel; 14 gauge support mechanisms; 15 grinding wheel mounting seats; 16 position control mechanism; 17 a lift locking mechanism; 21, grinding the chamber; 22 side doors; 23 a damper spring; 24 a hydraulic buffer; 25 linkage mechanism.
Detailed Description
The following describes in detail a preferred technical solution of the construction organization method and the equipment for the rapid rail grinding operation with reference to fig. 1 to 9:
a construction organization method for rapid grinding operation of a steel rail comprises a maintenance mode, an operation mode and an emergency mode, wherein the maintenance mode comprises new installation of a grinding wheel, replacement of the grinding wheel and storage and supply of the grinding wheel.
The new installation of the grinding wheel refers to the installation of the new grinding wheel on the grinding trolley under the condition that no grinding wheel exists, and the new installation of the grinding wheel comprises the following steps: firstly, unlocking a grinding wheel mounting seat 15 at a grinding wheel replacing station, taking a new grinding wheel 13 out of a stored grinding wheel frame 5, placing the new grinding wheels 13 to the grinding wheel mounting seat 15 one by one until the grinding wheel mounting seats 15 on a current grinding beam 11 are completely filled with the new grinding wheels 13 or reach the required number, and locking the new grinding wheels 13 by the grinding wheel mounting seat 15; and secondly, judging whether other grinding beams 11 need to be provided with the grinding wheel 13 or not, if not, finishing the new installation process of the grinding wheel 13, if so, controlling the grinding beams 11 to rotate by the position control mechanism 16, enabling the other grinding beams 11 to sequentially rotate to the grinding wheel 13 replacement station to execute the grinding wheel 13 installation step, and repeating the steps until the grinding wheel 13 is completely installed and finishing the new installation process of the grinding wheel 13.
The grinding wheel replacement refers to a grinding wheel 13 replacement process performed under the condition that a grinding wheel 13 is already arranged on the grinding trolley 3, and comprises the following steps: firstly, after the grinding wheel 13 is unlocked by replacing a working position, the used grinding wheel 13 to be replaced is dismounted and moved into the grinding wheel frame 5 for storage, the new grinding wheel 13 is out of the frame and mounted on the grinding wheel mounting seat 15, and after the new grinding wheel 13 is mounted, the locking mechanism on the grinding wheel mounting seat 15 locks the grinding wheel; and secondly, judging whether other grinding beams 11 need to be replaced, if not, finishing the replacing process of the grinding wheel 13, if so, controlling the grinding beams 11 to rotate by the position control mechanism 16, enabling the other grinding beams 11 to sequentially rotate to the replacing station of the grinding wheel 13 to execute the replacing step of the grinding wheel 13, and if so, circulating until the grinding wheel 13 is replaced, finishing the replacing process of the grinding wheel 13.
The internal sequence of the grinding wheel replacing process can be adjusted according to needs, and the method at least comprises the following adjusting methods: an old grinding wheel is disassembled and a new grinding wheel is replaced; or a plurality of old grinding wheels are firstly disassembled, and then new grinding wheels are replaced according to requirements; or all the old grinding wheels are firstly detached, and then new grinding wheels are replaced as required; the in-out frame of the new grinding wheel and the old grinding wheel is firstly put into the frame by the new grinding wheel, or the new grinding wheel is firstly put into the frame by the old grinding wheel and then put out of the frame, or the in-out frame of the new grinding wheel and the old grinding wheel is simultaneously put into and put out of the frame by the new grinding wheel.
The storage and supply of the grinding wheel refers to a process of supplying a new grinding wheel 13 to the rail rapid grinding wagon, and the method comprises the following steps: firstly, after a side door 22 of a working position of a grinding room 21 on a steel rail rapid grinding wagon is opened and a hoisting device 6 is unlocked, the hoisting device 6 hoists a grinding wheel frame 5, in which a used grinding wheel 13 is stored, in the hoisting wagon and moves the grinding wheel frame out of the wagon to put down, then the hoisting device 6 resets and continues to execute the work of moving the used grinding wheel frame 5 out of the wagon until the moving is finished, then the hoisting device 6 moves to the working position outside the wagon to hoist the grinding wheel frame 5, in which a new grinding wheel 13 is stored, the grinding wheel frame 5 is moved out of the wagon and is placed to a designated position, and the working position of the resetting wagon continues to execute the work of moving the grinding wheel frame 5 into the wagon until the storage is finished, the side door.
The internal sequence of the storage and replenishment process of the grinding wheel can be adjusted as required, and the method at least comprises the following adjustment methods: the grinding wheel frame storing the old grinding wheel is moved out of the vehicle firstly, and then the grinding wheel frame storing the new grinding wheel is moved out of the vehicle; or the grinding wheel frame storing the new grinding wheel is moved out of the vehicle firstly, and then the grinding wheel frame storing the old grinding wheel is moved out of the vehicle; or the two may be alternated.
The operation mode is normal quick polishing construction operation and comprises the following steps:
1) the lifting locking mechanism 17 of the polishing trolley 3 is unlocked, the polishing trolley 3 is lowered by the action of the lifting oil cylinder 12, and the traveling wheels 9 of the polishing trolley are in contact with the steel rails to provide traveling support;
2) the gauge supporting mechanism 14 works, and self-adaptively adjusts the pressure of the gauge supporting oil cylinder according to the transverse reaction force fed back by the grinding trolley traveling wheel 9, so that the grinding trolley traveling wheel 9 acts on the steel rail with constant transverse force to prevent the grinding trolley 3 from derailing and eliminate the snake-shaped traveling phenomenon of the grinding trolley;
3) the grinding trolley lifting oil cylinder 12 is adjusted to provide a downward pressure in a self-adaptive manner according to the vertical supporting reaction force, so that the grinding trolley 3 acts on the track with constant vertical pressure;
4) the position control mechanism 16 of the polishing trolley 3 adjusts the angle of the polishing beam 11 to match the requirement of the polishing position of the track, controls the polishing beam 11 to be lowered to enable the grinding wheel 13 to be in contact with the track, and adaptively adjusts the downward pressure by the position control mechanism 16 to enable the acting force between the grinding wheel 13 and the track to be constant;
5) the rail rapid grinding wagon performs operation walking, the grinding trolley pushing mechanism 8 pushes the grinding trolley 3, and the grinding trolley 3 passively follows to move to perform rapid grinding operation on the rail;
6) when the abrasion wheel 13 at the working station is worn to the limit, the position control mechanism 16 of the grinding trolley 3 lifts the grinding beam 11 and rotates to enable the other row of new abrasion wheels 13 to be at the working position, and then the grinding beam 11 is put down again to continue to work;
7) when the grinding wheels 13 of each group of grinding units are all damaged, so that the grinding trolley 3 does not have the operation condition any more, the grinding operation is finished, the position control mechanism 16 of the grinding trolley 3 lifts the grinding beam 11, the grinding trolley lifting oil cylinder 12 lifts the grinding trolley 3, the lifting locking mechanism 17 locks the grinding trolley 3, and the operation is stopped.
The sequence of the internal part of the operation mode flow can be adjusted statically or dynamically according to the requirement.
The angle of the polishing beam can be dynamically adjusted in the polishing operation process according to needs, and the polishing beam and the grinding wheel are required to be lifted away from the steel rail firstly during adjustment, and then the polishing beam and the grinding wheel are lowered to continue operation after the angle is adjusted.
The constant acting force means that the corresponding mechanism is dynamically adjusted in the operation process so as to realize the constant acting force in a specified range.
The number of execution times of step 6) is determined by the number of grinding beams or according to needs.
The working mode does not include the condition that the grinding trolley can still work normally and the work is finished manually.
The emergency mode is a series of measures taken when the grinding trolley 3 is suddenly broken to cause the operation mode to be incapable of continuing so as to ensure that the grinding trolley 3 can not influence the overall operation of the steel rail rapid grinding trolley, quickly enter into maintenance or evacuate from a site, avoid anchoring and occupy extra 'skylight' time, and ensure the normal operation of a track line, and comprises the following steps: after entering the emergency mode, the polishing trolley pump station 3 enters a manual mode, the polishing trolley lifting oil cylinder 12 is driven to lift the polishing trolley 3 through the manual mode, and the polishing trolley 3 is locked through the lifting locking mechanism 17 after being lifted in place, so that maintenance work in the emergency state is realized or the steel rail rapid polishing trolley is rapidly withdrawn from the site.
According to the steel rail rapid grinding construction organization method, the steel rail rapid grinding construction organization method comprising the maintenance mode, the operation mode and the emergency mode is formulated, so that theoretical support and construction guidance are provided for organized and organized steel rail rapid grinding operation, the technical problems of disorder, no seal and complicated operation redundancy of the existing steel rail rapid grinding construction are solved, new personnel can be effectively helped to adapt rapidly and master the steel rail rapid grinding construction operation skillfully, misoperation, redundant operation and time waste caused by misoperation are reduced, the working efficiency is effectively improved, the skylight time is fully and reasonably utilized to perform steel rail rapid grinding construction operation service, and the normal operation of a track line is ensured.
The utility model provides a quick equipment of polishing of rail, includes polisher frame 1, two bogies 2 around polisher frame 1 bottom is equipped with, and the middle part of polisher frame 1 sets up to the hunch-up shape, the dolly 3 of polishing is equipped with to hunch-up position below, and the dolly 3 of polishing includes dolly frame 10 of polishing and gauge supporting mechanism 14, and the connection structure between gauge supporting mechanism 14 and the dolly frame 10 of polishing adopts link mechanism 25 and is provided with damping spring 23 and hydraulic buffer 24.
A functional room and a polishing trolley pump station 4 are arranged above the arching part, and a movable floor 7 is arranged in the middle above the arching part.
The appearance of the polishing trolley frame 10 adopts a rectangular frame, the front end and the rear end of the polishing trolley frame 10 are respectively provided with a polishing trolley pushing mechanism 8, a polishing trolley lifting oil cylinder 12 and a lifting locking mechanism 17, the polishing trolley lifting oil cylinder 12 is connected with the arched part, and the two polishing trolley pushing mechanisms 8 are respectively arranged on the middle upper part of the front end and the rear end of the polishing trolley frame 10.
Be provided with in the function within a definite time 21 of polishing, 21 both sides of polishing have arranged side door 22, have arranged hoisting accessory 6 and emery wheel frame 5 within 21 between polishing, and emery wheel frame 5 sets to empty frame, perhaps sets to the storage and has new emery wheel, perhaps sets to the storage and has old emery wheel.
The grinding trolley 3 comprises a position control mechanism 16 and a grinding beam 11, wherein the position control mechanism 16 is installed on the grinding trolley frame 10 and connected with the grinding beam 11 for controlling the lifting and grinding angle of the grinding beam 11.
The two ends of the polishing beam 11 are provided with polishing trolley traveling wheels 9.
The grinding beam 11 is provided with a grinding wheel 13 which forms a certain angle with the vehicle running direction, the grinding beam 11 is provided with a vertical row of grinding wheel mounting seats 15, and the grinding wheel mounting seats 15 are provided with locking mechanisms.
According to the invention, the link mechanism 25 with the damping spring 23 and the hydraulic buffer 24 is arranged between the gauge supporting mechanism 14 and the grinding trolley frame 10, so that the grinding trolley 3 can effectively reduce the vibration influence from the reaction force of the steel rail when passing through the rail with corrugation, the grinding wheel 13 can be ensured to stably act on the steel rail, and the grinding effect is better. According to the invention, the polishing trolley pushing mechanism 8 is arranged at the middle upper part of the front end and the rear end of the polishing trolley frame 10, so that the polishing trolley 3 can stably and smoothly pass through a curve track with smaller curvature. The invention ensures better overall stability of the grinding carriage 3 by adopting the rectangular grinding carriage frame 10.
The above embodiments are merely preferred embodiments, wherein the components and the connection relations involved are not limited to the above described embodiments, and the arrangement and the connection relations of the components in the preferred embodiments may be arbitrarily arranged and combined to form a complete technical solution.
Claims (10)
1. A construction organization method for rapid grinding operation of a steel rail comprises a maintenance mode, an operation mode and an emergency mode, and is characterized in that the maintenance mode comprises new installation of a grinding wheel, replacement of the grinding wheel and storage and supply of the grinding wheel.
2. A steel rail rapid grinding operation construction organization method as claimed in claim 1, wherein the new installation of the grinding wheel refers to the installation of the new grinding wheel without the grinding wheel on the grinding trolley, and comprises the following steps: firstly, unlocking a grinding wheel mounting seat at a grinding wheel replacing station, framing a new grinding wheel out of a stored grinding wheel frame, placing the grinding wheels to the grinding wheel mounting seat one by one until the grinding wheel mounting seats on a current grinding beam are completely filled with the grinding wheels or reach the required number, and locking the grinding wheels by the grinding wheel mounting seat; and secondly, judging whether other grinding beams need to be provided with grinding wheels or not, if not, finishing the new grinding wheel mounting process, if so, controlling the grinding beams to rotate by the rotating mechanism, enabling the other grinding beams to sequentially rotate to a grinding wheel replacing station to execute the grinding wheel mounting step, and repeating the steps until the grinding wheels are mounted completely, and finishing the new grinding wheel mounting process.
3. A steel rail rapid grinding operation construction organization method as claimed in claim 1, wherein the grinding wheel replacement refers to a grinding wheel replacement process performed under the condition that a grinding wheel is already on a grinding trolley, comprising the following steps: firstly, unlocking a grinding wheel replacement working position, unloading an old grinding wheel to be replaced, moving the old grinding wheel into a grinding wheel frame for storage, mounting a new grinding wheel on a grinding wheel mounting seat in an out-frame mode, and locking the grinding wheel by a locking mechanism on the grinding wheel mounting seat after the new grinding wheel is mounted; and secondly, judging whether other grinding beams need to be replaced, if not, finishing the grinding wheel replacing process, if so, controlling the grinding beams to rotate by the rotating mechanism, enabling the other grinding beams to sequentially rotate to a grinding wheel replacing station to execute the grinding wheel replacing step, and if so, circulating until the grinding wheel is replaced, finishing the grinding wheel replacing process.
4. A steel rail rapid grinding operation construction organization method as claimed in claim 3, wherein the internal sequence of the grinding wheel replacement process can be adjusted as required, at least comprising the following adjustment methods: an old grinding wheel is disassembled and a new grinding wheel is replaced; or a plurality of old grinding wheels are firstly disassembled, and then new grinding wheels are replaced according to requirements; or all the old grinding wheels are firstly detached, and then new grinding wheels are replaced as required; the in-out frame of the new grinding wheel and the old grinding wheel is firstly put into the frame by the new grinding wheel, or the new grinding wheel is firstly put into the frame by the old grinding wheel and then put out of the frame, or the in-out frame of the new grinding wheel and the old grinding wheel is simultaneously put into and put out of the frame by the new grinding wheel.
5. A steel rail rapid grinding operation construction organization method as claimed in claim 1, wherein the storage and replenishment of the grinding wheel refers to a process of replenishing a new grinding wheel to a steel rail rapid grinding wagon, comprising the following steps: the method comprises the steps that firstly, after a side door of a grinding room working position on a steel rail quick grinding vehicle is opened and a lifting device is unlocked, the lifting device lifts a grinding wheel frame, in which a used grinding wheel is stored, in the crane, and moves the grinding wheel frame out of the vehicle to put down, then the lifting device resets to continue to execute the work of moving the used grinding wheel frame out of the vehicle until the work of moving the used grinding wheel frame out of the vehicle is completed, then the lifting device moves to the working position outside the vehicle to lift the grinding wheel frame, in which a new grinding wheel is stored, moves the grinding wheel frame out of the vehicle and places the grinding wheel frame to a designated position, the working position of the reset parking place continues to execute the work.
6. A steel rail rapid grinding operation construction organization method as claimed in claim 5, wherein the internal sequence of the storage and supply flow of the grinding wheel can be adjusted according to the requirement, and the method at least comprises the following adjustment methods: the grinding wheel frame storing the old grinding wheel is moved out of the vehicle firstly, and then the grinding wheel frame storing the new grinding wheel is moved out of the vehicle; or the grinding wheel frame storing the new grinding wheel is moved out of the vehicle firstly, and then the grinding wheel frame storing the old grinding wheel is moved out of the vehicle; or the two may be alternated.
7. A steel rail rapid grinding operation construction organization method as claimed in claim 1, wherein the operation mode comprises the following steps:
1) a lifting locking mechanism of the polishing trolley is unlocked, and the polishing trolley is lowered by the action of a lifting oil cylinder, so that a travelling wheel of the polishing trolley is in contact with a steel rail to provide travelling support;
2) the rail gauge supporting mechanism works, and the pressure of the rail gauge supporting oil cylinder is adjusted in a self-adaptive manner according to the transverse reaction force fed back by the grinding trolley walking wheels, so that the grinding trolley walking wheels act on the steel rail with constant transverse force to prevent the grinding trolley from derailing and eliminate the snake-shaped walking phenomenon of the grinding trolley;
3) the grinding trolley lifting oil cylinder is adjusted to provide a downward pressure in a self-adaptive manner according to the vertical supporting reaction force, so that the grinding trolley acts on the track with constant vertical pressure;
4) the position control mechanism of the polishing trolley adjusts the angle of the polishing beam to match the polishing position requirement of the track, controls the polishing beam to be lowered to enable the grinding wheel to be in contact with the track, and adaptively adjusts the downward pressure to enable the acting force between the grinding wheel and the track to be constant;
5) the rail rapid grinding wagon performs operation walking, the grinding trolley pushing mechanism pushes the grinding trolley, and the grinding trolley passively follows to move to perform rapid grinding operation on the rail;
6) when the abrasion wheel at the operation station is in the limit of loss, the position control mechanism of the polishing trolley lifts the polishing beam and rotates to enable the other row of new abrasion wheels to be in the operation station, and the polishing beam is released and pressed down again to continue operation;
7) when the grinding wheels of each group of grinding units are all damaged, so that the grinding trolley does not have operating conditions any more, the grinding operation is finished, the position control mechanism of the grinding trolley lifts the grinding beam, the grinding trolley lifting oil cylinder lifts the grinding trolley, the lifting locking mechanism locks the grinding trolley, and the operation is stopped.
8. A rapid rail grinding operation construction organization method as claimed in claim 7, wherein the sequence of the internal part of the operation mode flow can be adjusted statically or dynamically as required.
9. A steel rail rapid grinding operation construction organization method as claimed in claim 7, wherein the control of the grinding beam angle can be dynamically adjusted during the grinding operation according to requirements, and during the adjustment, the grinding beam and the grinding wheel are required to be lifted away from the steel rail first, then the angle is adjusted, and then the grinding beam and the grinding wheel are lowered to continue the operation.
10. The utility model provides a quick equipment of polishing of rail, includes car frame (1) of polishing, two front and back bogies (2) are equipped with to car frame (1) bottom of polishing, its characterized in that, and car frame (1) middle part of polishing sets to the hunch-up shape, hunch-up position below is equipped with polishing dolly (3), and polishing dolly (3) are including polishing dolly frame (10) and gauge support mechanism (14), and the connection structure between gauge support mechanism (14) and polishing dolly frame (10) adopts link mechanism (25) and is provided with damping spring (23) and hydraulic buffer (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911349099.5A CN111451844A (en) | 2019-12-24 | 2019-12-24 | Construction organization method and equipment for rapid grinding operation of steel rail |
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|---|---|---|---|
| CN201911349099.5A CN111451844A (en) | 2019-12-24 | 2019-12-24 | Construction organization method and equipment for rapid grinding operation of steel rail |
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| CN111451844A true CN111451844A (en) | 2020-07-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114673038A (en) * | 2022-04-08 | 2022-06-28 | 中铁第四勘察设计院集团有限公司 | Primary-secondary type water jet steel rail grinding assembly vehicle set and operation method thereof |
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2019
- 2019-12-24 CN CN201911349099.5A patent/CN111451844A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114673038A (en) * | 2022-04-08 | 2022-06-28 | 中铁第四勘察设计院集团有限公司 | Primary-secondary type water jet steel rail grinding assembly vehicle set and operation method thereof |
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