CN107139021B - Milling operation unit test platform of steel rail milling and grinding vehicle - Google Patents
Milling operation unit test platform of steel rail milling and grinding vehicle Download PDFInfo
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- CN107139021B CN107139021B CN201710525512.3A CN201710525512A CN107139021B CN 107139021 B CN107139021 B CN 107139021B CN 201710525512 A CN201710525512 A CN 201710525512A CN 107139021 B CN107139021 B CN 107139021B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q37/00—Metal-working machines, or constructional combinations thereof, built-up from units designed so that at least some of the units can form parts of different machines or combinations; Units therefor in so far as the feature of interchangeability is important
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Abstract
The invention discloses a milling operation unit test platform of a steel rail milling and grinding vehicle, which comprises a movable flat carriage, wherein an operation unit connecting plate is arranged on the movable flat carriage, a milling operation unit is arranged on the operation unit connecting plate, a supporting frame is arranged on the operation unit connecting plate, and the operation unit connecting plate is fixedly arranged on the movable flat carriage by utilizing the supporting frame. The invention has perfect functions, convenient operation, simple structure, safety and reliability, and can realize the debugging, milling operation simulation and milling operation unit function/performance detection of the steel rail milling and grinding vehicle milling operation unit.
Description
Technical Field
The invention relates to the field of railway maintenance equipment, in particular to a test platform for a milling operation unit of a steel rail milling machine.
Background
Along with the high-speed development of rail transit technologies such as railways, subways and the like in China, the increase of axle weight of rolling stock and the improvement of vehicle speed, higher requirements are put forward on the quality of railway lines by iron, and the improvement of the surface diseases of steel rails is urgent.
The service life of railway and subway rails is controlled by fatigue crack and abrasion caused by rolling contact. Fatigue cracks affect the flaw detection of the steel rail, the running state of the wheel rail, increase the maintenance cost, shorten the service life of the steel rail and even cause rail breakage; abrasion, particularly strand side abrasion on the upper curve, causes the rail to drop prematurely. In order to delay the development of rolling contact fatigue damage and abrasion of the steel rail and prolong the service life of the steel rail, a modern steel rail maintenance technology is required to be adopted. In order to solve the rail diseases, if a traditional polishing mode is adopted, the rail needs to be polished for 25 times under the rail condition of serious abrasion, and the rail diseases can be completed once by adopting a milling mode. At present, rail milling technology is introduced from 2009 in the fields of high-speed rail and subway in China to solve rolling contact fatigue, abrasion damage and the like of rails, and the rail milling technology is gradually a main repairing means.
The rail milling and grinding vehicle is an advanced rail milling and grinding device, which consists of an operation control system, a locomotive system, a traction power system, a storage battery system and the like, has complex mechanism, needs a series of test and debugging works after the whole vehicle is assembled, performs test and detection on various design indexes, and can leave a factory after reaching standards.
The milling operation unit is a core component unit of the rail milling and grinding vehicle and consists of a milling machine body and a milling operation control system, the technology is long-term monopoly overseas, and the unit cost accounts for 70% of the whole vehicle cost according to the unit cost estimation introduced overseas in China. The technical index of the milling operation unit directly relates to the rail milling operation precision of the rail milling and grinding vehicle, and is different from the production line product, the milling operation unit has complex system, and each factory needs to be independently debugged before being delivered for use.
Under the conventional condition, the milling operation unit is required to be hoisted on the car body, the whole system of the whole car is subjected to joint debugging, a line idle window is required, the state of each system of the whole car is ready, each post personnel of the whole car is in place, and after each condition is met, the whole command coordination line and each personnel of the car system drive the steel rail milling and grinding car to the test line to carry out debugging work, so that the test efficiency is very low.
In China, the railway lines are increasingly busy, the window time of a test line capable of being provided for debugging a milling operation unit is short, and the debugging efficiency is also greatly reduced. Therefore, it is necessary to develop a test platform with perfect functions for debugging the milling operation unit, which can truly simulate the working condition of the operation line, develop the milling test, analyze the effect after milling, detect the index and the like, is used for detecting the function and the performance before leaving the factory of the self-produced rail milling operation unit, can also be used as a standard detection platform of other rail milling operation units, and provides standard detection service.
Disclosure of Invention
The invention aims to provide a test platform for a milling operation unit of a rail milling and grinding vehicle, which can truly simulate the working condition of an operation line, develop the functions of milling test, analysis of effect after milling, index detection and the like, is used for the function detection and performance detection before delivery of the milling operation unit of the self-produced rail milling and grinding vehicle, can also be used as a standard detection platform of other milling operation units of the rail milling and grinding vehicle, and provides standard detection service.
The invention relates to a milling operation unit test platform of a steel rail milling and grinding vehicle, which comprises a movable flat carriage, wherein an operation unit connecting plate is arranged on the movable flat carriage, a milling operation unit is arranged on the operation unit connecting plate, a supporting frame is arranged on the operation unit connecting plate, and the operation unit connecting plate is fixedly arranged on the movable flat carriage by utilizing the supporting frame.
The operation unit connecting plate comprises a mounting connecting plate, a supporting frame, a mounting threaded hole, a positioning key notch and a lightening hole;
the supporting surface of the installation connecting plate is welded and connected with the supporting frame, and the finish machining treatment of the installation surface of the installation connecting plate ensures the planeness of the installation surface;
the support type frame is used for welding the operation unit connecting plate on a mobile flatcar;
the positioning key notch is used for positioning the mounting position of the milling operation unit;
the milling operation unit is fixed on the mounting surface of the mounting connecting plate by the mounting threaded hole in a threaded connection mounting mode;
the lightening holes are used for lightening the overall weight of the equipment.
The milling operation unit is positioned through the notch of the positioning key, and then is fixedly installed on the installation surface of the installation connecting plate by using bolts.
The test platform also comprises a track, a work control cabinet and a work operation table.
The rails are connected by standard rails and are paved with L meters in length, and the rails on the rails are installed in a replaceable connection mode.
The operation control cabinet is fixedly arranged on the movable flatcar, a control system is arranged in the operation control cabinet, rail disease data and operation instructions of the operation table are collected in real time by the control system, an intelligent control algorithm is operated, and rail milling repair operation is performed in real time.
The operation control cabinet in the invention can be composed of a group of picture cabinets. It is the electrical control part of the milling unit, which can be fastened to the mobile trolley by means of bolts or by welding or other means. In the operation process, a control system in the operation control cabinet collects rail disease data and operation instructions of an operation console in real time, an intelligent control algorithm is operated, rail milling repair operation is performed in real time, and the current operation is stopped after an operation stop or other termination command is received.
The operation console is fixedly arranged on the mobile platform wagon, and a milling operation unit operation state monitor, an operation button panel and a mobile platform wagon operation panel are arranged in the operation console.
The operation console is a man-machine interaction part of an operator of the milling operation unit test platform and is fixed on the mobile platform wagon through bolts or welding or other modes. The operation platform is provided with a milling operation unit operation state monitor, an operation button panel and a mobile flatcar operation panel, and a test platform operator can operate and complete the whole milling test process on the operation platform.
The mobile flat car is provided with a variable frequency motor, a speed reducer, a driving wheel and a driven wheel, and the variable frequency motor and the speed reducer provide wheel set traction for the mobile flat car.
The movable flatcar disclosed by the invention adopts an LM type wheel set specified in the TB/T449-2016 standard, and is consistent with the actual line running of a steel rail milling and grinding car. The movable flatcar provides a mounting foundation for functional components such as a milling operation unit, an operation control cabinet and an operation platform, and the like, loads on a track to run, and the speed is adjustable within the range of 0.3-1.8km/h, so that the constant speed requirement in the milling operation process is met. The movable flatcar is also provided with parts such as an operating handle load platform and auxiliary equipment.
And the mounting surface of the milling operation unit is mounted on the operation unit connecting plate for finish machining. The operation unit connecting plate is an important connecting part of the test platform, and the mounting surface after finishing treatment can be well mounted and used for supporting the milling operation unit.
The track has a laying length of 30 meters.
The track is constructed and laid according to the iron standard ' TB10082-2005 railway track design specification ' and the TB10413-2003 railway track engineering construction quality acceptance standard ', and a standard 60kg/m steel rail is used for laying a line with the length of 30 meters, so that the length of the line is consistent with that of an actual line, and the length of the line required by a basic operation flow of a milling operation unit can be met. In order to simulate actual line faults, the steel rails to be paved can be replaced by steel rails of different damaged types, so that the operation of the milling operation unit under different road conditions such as edge fat edges, edge abrasion, wave abrasion, rail gaps and the like of the steel rails is simulated.
The track is paved in a designated area of a test factory building and fixedly connected with the ground, a supporting effect is achieved, the movable flat car adopts a railway standard wheel pair to run on the track at a constant speed, the operation unit connecting plate is fixed on the movable flat car through bolts or welding or other connecting modes, the milling operation unit is fixed on the operation unit connecting plate through bolts or welding or other connecting modes, and the operation control cabinet and the operation console are fixed on the movable flat car through bolts or welding or other connecting modes. In the test process, the movable flatcar runs on the track at a constant speed, a tester operates the milling operation unit to mill the target steel rail on the track through the operation console, and test data are recorded in the milling operation process. After the test is finished, the mobile flat carriage reversely moves to return to the initial position, and a tester detects the relevant accuracy index of the milled steel rail to evaluate the milling operation effect.
The invention has perfect functions, convenient operation, simple structure, safety and reliability, and can realize the debugging, milling operation simulation and milling operation unit function/performance detection of the steel rail milling and grinding vehicle milling operation unit.
Drawings
The features and advantages of the present invention will become more readily appreciated from the detailed description provided below, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of a test platform of a milling operation unit of a rail milling machine of the present invention;
FIG. 2 is a side view of a rail mill truck milling unit test platform of the present invention;
FIG. 3 is a top view of the milling operation unit test platform of the rail milling machine of the present invention;
FIG. 4 is a perspective view of a work unit attachment plate structure of the present invention;
FIG. 5 is a front view of the work unit attachment plate structure of the present invention;
FIG. 6 is a view in direction A of FIG. 5 of the present invention;
FIG. 7 is a view in direction B of FIG. 5 of the present invention;
FIG. 8 is a test platform operation flow of the present invention.
Detailed Description
Exemplary embodiments of the present invention are described in detail below with reference to the accompanying drawings. The description of the exemplary embodiments is presented for purposes of illustration only and is in no way intended to limit the invention, its application, or uses.
While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the specific embodiments described and illustrated herein, and that various changes to the exemplary embodiments may be made by those skilled in the art without departing from the scope defined by the claims.
The invention provides a test platform for a milling operation unit of a rail milling and grinding vehicle, which mainly adopts an internal combustion engine as a driving power rail milling and grinding vehicle at present and uses a movable trolley with a low constant speed function to simulate a vehicle part of the rail milling and grinding vehicle, the milling operation unit is arranged on the movable trolley and comprises a hydraulic system and the like, standard rails are paved on the ground according to national standards, the movable trolley carrying the milling operation unit during simulated operation runs on the standard rails and is basically consistent with actual working conditions, the operation effect can be used as an evaluation standard for the performance of the milling operation unit, and a standardized test platform is provided for debugging and detecting the operation unit.
The invention is used for testing, debugging and detecting the milling operation unit of the rail milling and grinding vehicle, and mainly solves the problems: because the milling operation unit directly debugs on the rail milling and grinding vehicle has the defects of large debugging difficulty, high cost, low efficiency and the like, and uncontrollable factors in the debugging process affect the judgment of debugging personnel on problem points, the key points of the problem can be difficult to quickly judge and even wrongly judge, so that a series of problems such as slow progress and high cost are caused; meanwhile, the invention can simulate the real working condition, the working effect is consistent with the real working condition, and the invention has the characteristics of small required space, convenient test, high efficiency and the like, can debug milling operation units and detect performance indexes, and can also be used as a milling and grinding vehicle operator training platform.
The following describes the technical scheme of the embodiment of the present invention in detail with reference to the accompanying drawings. The embodiment of the invention provides a milling operation unit test platform of a steel rail milling and grinding vehicle, which comprises a movable flat carriage, wherein an operation unit connecting plate is arranged on the movable flat carriage, a milling operation unit is arranged on the operation unit connecting plate, a supporting frame is arranged on the operation unit connecting plate, and the operation unit connecting plate is fixedly arranged on the movable flat carriage by utilizing the supporting frame.
The operation unit connecting plate comprises a mounting connecting plate 41, a supporting frame 42, a mounting threaded hole 43, a positioning key notch 44 and a weight reducing hole 45;
the supporting surface of the mounting connecting plate 41 is welded and connected with the supporting frame, and the finishing treatment of the mounting surface of the mounting connecting plate ensures the flatness of the mounting surface;
the support frame 42 welds the work unit connection plate to a mobile flatcar;
the positioning key notch 44 positions the mounting position of the milling operation unit;
the mounting threaded holes 43 are used for fixing the milling operation unit on a mounting surface of a mounting connecting plate in a threaded connection mounting mode;
the lightening holes 45 serve to lighten the overall weight of the apparatus.
The milling operation unit is positioned through the notch of the positioning key, and then is fixedly installed on the installation surface of the installation connecting plate by using bolts.
The milling operation unit test platform of the steel rail milling and grinding vehicle further comprises a rail, an operation control cabinet and an operation console.
The rails are connected by standard rails and are paved with L meters in length, and the rails on the rails are installed in a replaceable connection mode.
The operation control cabinet is fixedly arranged on the movable flatcar, a control system is arranged in the operation control cabinet, rail disease data and operation instructions of the operation table are collected in real time by the control system, an intelligent control algorithm is operated, and rail milling repair operation is performed in real time.
The operation control cabinet 5 in the invention can be composed of 2 groups of wei picture cabinets. Which is the electrical control part of the milling unit 3, can be fastened to the mobile wagon 2 by means of bolts or welding or other means. In the operation process, a control system in the operation control cabinet collects rail disease data and operation instructions of an operation console in real time, an intelligent control algorithm is operated, rail milling repair operation is performed in real time, and the current operation is stopped after an operation stop or other termination command is received.
The operation console is fixedly arranged on the mobile platform wagon, and a milling operation unit operation state monitor, an operation button panel and a mobile platform wagon operation panel are arranged in the operation console.
The working console 6 in the invention is a man-machine interaction part of the operator of the milling working unit test platform and is fixed on the mobile platform 2 by bolts or welding or other modes. The operation platform is provided with a milling operation unit operation state monitor, an operation button panel and a mobile flatcar operation panel, and a test platform operator can operate and complete the whole milling test process on the operation platform 6.
The mobile flat car is provided with a variable frequency motor, a speed reducer, a driving wheel and a driven wheel, and the variable frequency motor and the speed reducer provide wheel set traction for the mobile flat car. The driving wheel and the driven wheel on the movable flat car adopt standard railway locomotive wheel pairs, so that the running is consistent with the actual situation.
The movable flatcar 2 adopts an LM type wheel set specified by the TB/T449-2016 standard, and is consistent with the actual line running of a rail milling and grinding car. The movable flatcar 2 provides a mounting foundation for functional components such as the milling operation unit 3, the operation control cabinet 5, the operation platform 6 and the like, and is used for carrying out load running on the track 1, the speed is adjustable within the range of 0.3-1.8km/h, and the constant speed requirement in the milling operation process is met. The traveling flatcar 2 is further provided with components such as an operation handle load platform and auxiliary equipment.
And the mounting surface of the milling operation unit is mounted on the operation unit connecting plate for finish machining. The operation unit connecting plate is an important connecting part of the test platform, and the mounting surface after finishing treatment can be well mounted and used for supporting the milling operation unit.
The track has a laying length of 30 meters.
The track 1 is constructed and paved according to the iron standard ' TB10082-2005 railway track design specification ' and the TB10413-2003 railway track engineering construction quality acceptance standard ', and a standard 60kg/m steel rail is used for paving a line with the length of 30 meters, so that the length of the line is consistent with that of an actual line, and the length of the line required by a basic operation flow of a milling operation unit can be met. In order to simulate actual line faults, the steel rails to be paved can be replaced by steel rails of different damaged types, so that the operation of the milling operation unit under different road conditions such as edge fat edges, edge abrasion, wave abrasion, rail gaps and the like of the steel rails is simulated.
According to the invention, a track 1 is paved in a designated area of a test factory building and is fixedly connected with the ground, a supporting effect is achieved, a movable flat car 2 adopts a railway standard wheel pair to run on the track 1 at a constant speed, a working unit connecting plate 4 is fixed on the movable flat car 2 through bolts or welding or other connecting modes, a milling working unit 3 is fixed on the working unit connecting plate 4 through bolts or welding or other connecting modes, and a working control cabinet 5 and a working operation table 6 are fixed on the movable flat car 2 through bolts or welding or other connecting modes. In the test process, the movable flatcar 2 runs on the track 1 at a constant speed, a tester operates the milling operation unit 3 to mill the target steel rail on the track 1 through the operation console 6, and test data are recorded in the milling operation process. After the test is finished, the mobile flatcar 2 reversely moves to return to the initial position, and a tester detects relevant accuracy indexes of the milled steel rail to evaluate the milling operation effect.
The technical problems to be solved in the technical scheme of the invention mainly comprise:
first, simulate rail mill grinding car operation circuit: including rail type, gauge, rail slit, ramp, curve, and various rail blemishes (e.g., edge father, edge wear, wave wear, etc.);
second, simulating milling and grinding vehicle operation conditions: the milling operation unit can run at a low constant speed according to the standard operation speed, so that the operation requirement of a milling cutter head is met, and meanwhile, the speed is adjustable within a certain range;
thirdly, fixing and mounting milling operation units: the installation and fixation mode is designed according to the working principle of the real milling operation unit, so that the reliability of the milling operation process is ensured;
fourth, simulate milling operation flow: designing a test platform consistent with the operation environment of a real steel rail milling and grinding vehicle, so that an operator can train an operation flow through the test platform;
fifth, milling operation effect evaluation: the test platform can judge performance indexes by taking the operation effect of the milling operation unit as reliable data.
Aiming at the technical problems to be solved, the general solution idea of the invention is as follows:
1. simulating a real rail milling and grinding vehicle operation line: a standard 60kg track with the length of 30 meters is paved on the ground according to the railway standard, the real railway line standard is achieved, the operation line requirement of a test platform is met, meanwhile, the rail is paved in a segmented mode, the middle section can be replaced by the rail with specific diseases (such as edge fat edges, edge abrasion, wave abrasion and the like) according to the requirement, and the standard mature operation flow is achieved for replacing the rail, so that the method is simple and convenient.
2. Simulating the working condition of a milling and grinding machine: the movable flat carriage is designed and developed according to the weight of the milling operation unit, the milling force of the cutter head and the operation speed, the speed of the movable flat carriage is adjustable, the low constant speed requirement is met, the movable flat carriage can simulate the running of the vehicle on rails with the milling operation unit, the movable flat carriage is designed with a fixed mounting interface of the milling operation unit, the mounting space and the interface required by an electric control cabinet, an operation panel and the like are reserved, the wheel set of the movable flat carriage adopts a standard railway locomotive wheel set, and the running environment of the milling and grinding carriage on the rails is accurately simulated.
3. Fixing and mounting of milling operation units: the milling operation unit and the test platform are fixed and installed, the fixing and the installation of the milling operation unit and the milling and grinding vehicle are referred to, optimization is made according to the test condition, the fixing mode of the milling operation unit and the test platform is the same as the fixing mode of the milling and grinding vehicle, namely, the bolt connection is fixed, the installation mode is optimized, the milling and grinding vehicle adopts the mode of fixing the milling operation unit when the milling operation unit is installed, and the test platform adopts the mode of fixing the test platform when the milling operation unit is installed, so that the installation is convenient and fast, and the occupied space is small.
4. Simulating a milling operation flow: according to the scheme in the steps 1 and 2, the milling operation environment is basically consistent with that of an actual steel rail milling and grinding vehicle, an operator can conduct operation training through a too-large platform, and meanwhile, a debugger can conduct optimization work on functions and performances of an operation unit.
5. Milling operation effect evaluation: after the steps 1 and 2 are completed, the milling operation unit moving platform drives the milling operation unit to simulate the low constant speed operation of the milling and grinding vehicle on the rail, so that the rail is subjected to milling operation, and the accuracy after milling can be detected as the evaluation basis of the performance of the milling operation unit because the operation environment is basically consistent with the actual condition.
The invention has perfect functions, convenient operation, simple structure, safety and reliability, and can realize the debugging, milling operation simulation and milling operation unit function/performance detection of the steel rail milling and grinding vehicle milling operation unit.
Milling operation unit debugging: according to the invention, the mechanical body of the milling operation unit 3, the operation control cabinet 5 and related sensors are integrated on a test platform, and a series of function/performance debugging works such as operation unit detection, logic control, fault simulation, milling operation algorithm optimization and the like can be carried out by a tester by combining the track 1, the mobile platform 2, the operation unit connecting plate 4 and the operation console 6.
Milling operation simulation: the invention drives the movable flatcar 2 carrying the milling operation unit 3, the operation control cabinet 5 and the operation console 6 to run on the track 1 at a constant speed through the speed reducer by using the alternating current motor, and the operation operator executes operation instructions such as track profile scanning, device descending/ascending, flatcar starting, operation starting, feeding/retracting, operation stopping, emergency lifting and the like on the operation console 6 to simulate the milling operation process. Meanwhile, the rail can be replaced or the rail gap widened by using a specific broken rail (such as edge fat edge, edge abrasion, wave abrasion and the like) so as to simulate various working conditions of the milling working unit.
Milling operation unit function/performance detection: the track 1 meets the railway line construction standard, the movable flatcar 2 adopts a standard railway locomotive wheel pair to realize constant-speed running and meets the running requirement of the steel rail milling and grinding vehicle operation, and the milling operation effect finished on the test platform can be used as the detection basis of the function/performance index of the milling operation unit and can be used as a standard test platform for detecting the function/performance of the milling operation unit, and the test platform has the characteristics of low cost, convenience in test, reliability in detection and the like.
The action flow of the milling operation unit test platform of the steel rail milling and grinding vehicle is described as follows:
firstly, an operator goes to the operation console 6 to be in position, the safety of the surrounding environment is confirmed, and after the test can be carried out, the operator powers on the test platform;
step two, after power-on, the platform self-checks whether power supply, hydraulic pressure, pneumatic pressure and the like are normal, if abnormal, a fault alarm prompt exists, and if normal, the next operation can be carried out;
thirdly, after normal power-on, pressing a rail profile scanning button, and carrying out rail profile scanning reconstruction from inside to outside by a milling operation unit 3 to confirm the position of a steel rail;
fourthly, after the rail profile scanning is completed, a descending button of the device is pressed, and a spindle box of the milling operation unit 3 descends to reach a milling operation working position;
fifthly, setting operation parameters according to actual conditions or test requirements by an operator, and manually inputting parameters such as cutting depth, operation speed, main shaft rotation speed and the like;
step six, after parameter setting is completed, a start button of the mobile flat car 2 is pressed, the mobile flat car 2 moves along the steel rail, and after the speed of the mobile flat car 2 reaches a set value, the next operation can be performed;
seventh, pressing a start operation button, cutting in the slope by the milling operation unit 3 according to set operation parameters, starting steel rail milling operation, and adjusting vertical and horizontal feed in real time by an operation control system according to rail surface disease conditions in the milling process;
eighth, after milling the damaged steel rail, pressing a termination operation button, cutting the milling operation unit 3 along a slope, lifting a main spindle box of the milling operation unit 3 to an initial position, and then moving the flatcar 2 to stop moving;
a ninth step of pressing a reset button of the mobile flat car 2, and reversely moving the mobile flat car 2 to return to an initial position for parking;
and tenth, operators confirm that the test platform is powered off, and the test operation is finished.
According to the invention, the milling unit is arranged on the low constant speed mobile flatcar, the hydraulic and pneumatic system is actually arranged, and the ground is paved with a plurality of sections of rails according to national standards, so that the running on the rails under the real working condition with low constant speed can be simulated. During operation, the mobile flatcar drives the milling operation unit to walk on the rail, the influence of the cutting resistance generated by the steel rail during operation of the milling operation unit on the milling unit can be truly simulated, and the milling effect is consistent with the actual effect. The technical scheme of the invention is consistent with the actual working condition of the milling operation unit, and the operation effect can be used as an actual index evaluation and can be used as an operation unit performance evaluation platform.
The invention solves the problems of unstable roadbed, vibration of the steel rail, easy damage to the blade and the like during the milling operation of the simulated steel rail milling and grinding vehicle, ensures the stability of a milling operation line, and can also pointedly replace the steel rail with specific diseases so as to ensure that the debugging and the detection of the milling operation unit are more accurate and convenient.
The movable flatcar adopts a standard railway locomotive wheel pair to simulate the constant-speed operation working condition of the rail milling and grinding vehicle, and can be realized in a test factory, thereby solving the problems of large space, harsh test conditions, short test window, more personnel involved and the like required by actual on-line milling operation. The debugging is more convenient, the debugging efficiency is improved, and the debugging cost is saved.
The milling operation unit, the operation control cabinet, the hydraulic system, the operation console and other mechanisms are reasonably arranged, the actual operation environment is simulated, and the problems of difficult training of operation operators, complex training conditions, inconvenient site and the like are solved. The invention ensures that personnel training is more efficient, training subjects are conveniently and pertinently designed, training space is convenient, and safety is higher.
The universal milling unit detection platform is constructed by paving standard steel rails and designing low-constant-speed mobile flatcar, can be used as a universal detection platform for detecting function/performance indexes of a milling operation unit, and further can be used as an authentication standard detection mechanism.
The invention has the main beneficial effects as follows:
firstly, a track is paved in a test workshop according to railway standards, so that an operation line can be truly simulated, the vehicle section scheduling limit is avoided, the debugging is safe and convenient, the line window limit is avoided, and a sufficient time guarantee and line running foundation is provided for the debugging of a milling operation unit;
secondly, a movable flatcar is used for simulating a rail milling and grinding car vehicle system, a standard locomotive wheel pair is adopted to ensure that the running is consistent with the actual running, the constant speed control meets the operation speed requirement, the whole cost is low, the structure is simple, the implementation is easy, and the milling operation effect is ensured;
thirdly, based on the operation principle of the steel rail milling and grinding vehicle, the milling operation unit is reliably and fixedly arranged on the mobile platform, meanwhile, components such as an operation control cabinet, a hydraulic system and an operation control console are reasonably arranged, all processes of milling operation can be completed on the test platform, the debugging and operator training efficiency of the milling operation unit can be greatly improved, the service cycle of delivering users is shortened, and the delivering efficiency is improved with lower cost;
finally, the test platform based on the invention can truly simulate the milling operation line, working condition, operation environment and the like of the rail milling and grinding vehicle, the milling operation effect on the test platform can be evaluated as a real effect, the milling operation algorithm and the control logic are optimized according to the evaluation result, the whole vehicle debugging time can be greatly shortened, the cost is greatly saved, and the test platform has great significance in improving the total assembly debugging efficiency of the rail milling and grinding vehicle.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (5)
1. A steel rail milling machine mills operation unit test platform which characterized in that: the milling device comprises a mobile flat carriage, wherein an operation unit connecting plate is arranged on the mobile flat carriage, a milling operation unit and a supporting frame are arranged on the operation unit connecting plate, the operation unit connecting plate is fixedly arranged on the mobile flat carriage through the supporting frame, and the operation unit connecting plate comprises a mounting connecting plate, a supporting frame, a mounting threaded hole, a positioning key notch and a weight reducing hole; the supporting surface of the installation connecting plate is welded and connected with the supporting frame, and the finish machining treatment of the installation surface of the installation connecting plate ensures the planeness of the installation surface; the support type frame is used for welding the operation unit connecting plate on a mobile flatcar; the positioning key notch is used for positioning the mounting position of the milling operation unit;
the milling operation unit is fixed on the mounting surface of the mounting connecting plate by the mounting threaded hole in a threaded connection mounting mode; the weight reducing hole is used for reducing the total weight of equipment and further comprises a track, a work control cabinet and a work operation console, wherein the work control cabinet is fixedly arranged on the movable trolley, a control system is installed in the work control cabinet, rail disease data and operation console work instructions are collected in real time by the control system, an intelligent control algorithm is operated to perform rail milling repair operation in real time, the work operation console is fixedly arranged on the movable trolley, a milling operation unit work state monitor, a work operation button panel and a movable trolley operation panel are installed in the work operation console, and the operation steps of simulating a real rail milling and grinding vehicle are as follows:
1. simulating a real rail milling and grinding vehicle operation line: according to the railway standard, a standard 60kg track with the length of 30 meters is paved on the ground, so that the standard of a real railway line is achieved, the operation line requirement of a test platform is met, meanwhile, the rail is paved in a segmented mode, the middle section can be replaced by a rail with specific diseases such as edge fertilizer edges, edge abrasion and wave abrasion according to the requirement, and a standard mature operation flow is provided for replacing the rail; 2. simulating the working condition of a milling and grinding machine: the movable flat car is designed and developed according to the weight of the milling operation unit, the milling force of the cutter head and the operation speed, the speed of the movable flat car is adjustable, the low constant speed requirement is met, the movable flat car is provided with a fixed mounting interface of the milling operation unit, the mounting space and the interface required by an electric control cabinet and an operation panel are reserved, and a wheel pair of the movable flat car adopts a standard railway locomotive wheel pair; 3. fixing and mounting of milling operation units: the method comprises the steps of fixing and installing a milling operation unit and a test platform, and optimizing according to test conditions by referring to the fixing and installing of the milling operation unit and a milling and grinding vehicle, wherein the fixing mode of the milling operation unit and the test platform is the same as the fixing mode of the milling and grinding vehicle, namely, bolt connection and fixing; 4. simulating a milling operation flow: according to the scheme in the steps 1 and 2, the milling operation environment is basically consistent with that of an actual steel rail milling and grinding vehicle, an operator can perform operation training through a platform, and meanwhile, a debugger can perform optimization work on functions and performances of an operation unit; 5. milling operation effect evaluation: after the steps 1 and 2 are completed, the milling operation unit moving platform drives the milling operation unit to simulate the low constant speed operation of the milling and grinding vehicle on the rail, so that the rail is subjected to milling operation, and the accuracy after milling can be detected as the evaluation basis of the performance of the milling operation unit because the operation environment is basically consistent with the actual condition.
2. The test platform of claim 1, wherein: the milling operation unit is positioned through the notch of the positioning key, and then is fixedly installed on the installation surface of the installation connecting plate by using bolts.
3. The test platform of claim 2, wherein: the rails are connected by standard rails and are paved with L meters in length, and the rails on the rails are installed in a replaceable connection mode.
4. A test platform as claimed in claim 3, wherein: the mobile flat car is provided with a variable frequency motor, a speed reducer, a driving wheel and a driven wheel, and the variable frequency motor and the speed reducer provide wheel set traction for the mobile flat car.
5. The test platform of claim 4, wherein: and the mounting surface of the milling operation unit is mounted on the operation unit connecting plate for finish machining.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710525512.3A CN107139021B (en) | 2017-06-30 | 2017-06-30 | Milling operation unit test platform of steel rail milling and grinding vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710525512.3A CN107139021B (en) | 2017-06-30 | 2017-06-30 | Milling operation unit test platform of steel rail milling and grinding vehicle |
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| CN107139021A CN107139021A (en) | 2017-09-08 |
| CN107139021B true CN107139021B (en) | 2023-10-20 |
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| CN111531211B (en) * | 2020-04-02 | 2021-05-28 | 洛阳拓博尔铁路设备有限公司 | Real-time control method for steel rail milling operation |
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| US3889575A (en) * | 1972-04-07 | 1975-06-17 | Elektro Thermit Gmbh | Device for profiling the rail head of vignoles rails |
| CN105598513A (en) * | 2016-03-28 | 2016-05-25 | 北京拓博尔轨道维护技术有限公司 | Control method of steel rail milling work |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2487387C (en) * | 2004-12-01 | 2010-02-23 | David Fenton | Rail grooming machine and method of use |
| EP3026179B1 (en) * | 2012-01-19 | 2020-03-11 | Loram Maintenance Of Way, Inc. | A device for milling of railroad track |
| CN207289634U (en) * | 2017-06-30 | 2018-05-01 | 北京拓博尔轨道维护技术有限公司 | A kind of rail milling turnning and milling cuts operation unit test platform |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3889575A (en) * | 1972-04-07 | 1975-06-17 | Elektro Thermit Gmbh | Device for profiling the rail head of vignoles rails |
| GB1422804A (en) * | 1972-04-07 | 1976-01-28 | Elektro Thermit Gmbh | Apparatus for reprofiling the head of a flat bottom rail |
| CN105598513A (en) * | 2016-03-28 | 2016-05-25 | 北京拓博尔轨道维护技术有限公司 | Control method of steel rail milling work |
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