CN114986343A - Rigid contact line rapid polishing system and method - Google Patents
Rigid contact line rapid polishing system and method Download PDFInfo
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- CN114986343A CN114986343A CN202210746203.XA CN202210746203A CN114986343A CN 114986343 A CN114986343 A CN 114986343A CN 202210746203 A CN202210746203 A CN 202210746203A CN 114986343 A CN114986343 A CN 114986343A
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- 238000005498 polishing Methods 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 238000006073 displacement reaction Methods 0.000 claims description 19
- 238000005096 rolling process Methods 0.000 claims description 12
- 238000012544 monitoring process Methods 0.000 claims description 9
- 238000012423 maintenance Methods 0.000 claims description 8
- 238000007689 inspection Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 239000000428 dust Substances 0.000 description 12
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- 238000005299 abrasion Methods 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 6
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- 238000007517 polishing process Methods 0.000 description 3
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- 230000003287 optical effect Effects 0.000 description 2
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Classifications
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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
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/02—Machines or devices using grinding or polishing belts; Accessories therefor for grinding rotationally symmetrical surfaces
- B24B21/025—Machines or devices using grinding or polishing belts; Accessories therefor for grinding rotationally symmetrical surfaces for travelling elongated stock, e.g. wire
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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
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
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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
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
- B24B21/20—Accessories for controlling or adjusting the tracking or the tension of the grinding belt
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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
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
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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
- B24B51/00—Arrangements for automatic control of a series of individual steps in grinding a workpiece
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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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/04—Protective covers for the grinding wheel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a system and a method for quickly polishing a rigid contact line, belongs to the technical field of rail transit, and solves the technical problems that the manual polishing efficiency of the contact line is poor, the safety is to be improved, and the contact line cannot be dynamically adjusted in the prior art, and the system comprises an automatic polishing module: the polishing device is used for grinding and polishing the contact line; contact force guarantee mechanism: the automatic polishing module is fixedly arranged at the top of the contact force guaranteeing structure; the lifting mechanism: the height of the automatic polishing module is adjusted, the automatic polishing module is arranged at the top of the lifting mechanism, so that the polishing efficiency, quality and safety of the contact line are improved, and the technical effect of providing dynamic contact force adjustment for the contact line is achieved.
Description
Technical Field
The invention relates to the technical field of rail transit contact line polishing, in particular to a rigid contact line rapid polishing system and a rigid contact line rapid polishing method.
Background
With the continuous acceleration of the urbanization process in China, the contradiction between urban infrastructure, particularly urban traffic, and urban development gradually appears, and urban rail transit plays a positive role in the overall planning of the whole city, the promotion and guidance of along-line planning construction and economic development, the improvement of urban public traffic conditions, the optimization of urban traffic structures and the like. The rigid contact net has a series of advantages of stronger current carrying capacity, no disconnection danger, high safety and reliability, few parts, convenience in installation, simplicity in maintenance, low maintenance cost, reduction of tunnel clearance, civil engineering investment saving and the like, and is widely applied to urban rail transit power supply systems in recent years by various major cities.
During actual operation, the pantograph vibrates very violently, especially in the flexible track bed section. The pantograph vibrates violently, and rigidity contact net is inelastic, does not have dynamic coupling between pantograph and the contact net, therefore pantograph net pressure variation just is great, and the pantograph can produce the great impact force of variation to the contact line, makes the contact line face appear the hard spot, and the appearance of hard spot has further aggravated the vibration of pantograph when passing through this department again, forms vicious circle. Meanwhile, the pantograph pressure which changes violently can not keep good contact with the contact line, and when the pantograph pressure becomes zero, the pantograph can be off-line, so that arc discharge and contact line burning can be caused, so that the line surface has the phenomena of pockmark, uneven abrasion, even side abrasion and the like, and the line surface quality of the contact line is influenced. The abnormal abrasion of the contact wire influences the normal matching relation of the pantograph-catenary, reduces the current-taking quality of the pantograph, shortens the service life of the contact wire, and even has certain influence on the safe operation of urban rail transit. In the running process of the railway vehicle, the vehicle can swing up and down, particularly in an acceleration section, the vehicle can swing in an acceleration mode, and the distance between the vehicle and a contact line can change constantly; in addition, due to errors in the construction process of the contact line, the height of the contact line has certain deviation from the standard height, and the deviation value of the distance between the vehicle and the contact line is further increased.
Contact wire is polished to be the most effective bow net relation at present and deals with the measure, and the cover surface of polishing should maximize, concentrates in the short time and accomplishes the whole line and polish, ensures that the contact net can keep good technical state, improves bow net matching relation. Because machine equipment for polishing the contact wire is absent in the market at present, the contact wire is polished by adopting a manual or handheld polishing machine at present, so that the surface smoothness of the contact wire is ensured, and abnormal abrasion is relieved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a rigid contact line rapid polishing system and a rigid contact line rapid polishing method, and solves the problems of low manual polishing efficiency and poor polishing effect in the traditional technology.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
a rigid contact line rapid polishing system comprising:
the automatic polishing module: the polishing machine is used for grinding and polishing the contact line;
contact force guarantee mechanism: the automatic polishing module is fixedly arranged at the top of the contact force guaranteeing structure;
the lifting mechanism: the height of the automatic polishing module is adjusted, and the contact force guaranteeing mechanism is arranged at the top of the lifting mechanism.
By adopting the scheme, the contact line can be automatically polished through the automatic polishing module, so that the problem of low efficiency caused by a manual polishing mode in the traditional technology is solved, wherein the contact force guaranteeing mechanism can ensure that the pressure of the automatic polishing module and the contact line is constant, and the phenomenon of contact line damage or poor polishing effect caused by overlarge or undersize contact force is avoided in the polishing process; the lifting mechanism is used for roughly adjusting the height of the device, so that the device can be adapted to contact lines of all heights, and the height can be adjusted according to the contact force in the polishing process.
The automatic grinding module comprises a support and an abrasive belt, a wheel set is arranged on the support in a rotating mode, the wheel set is connected with a driving device, the abrasive belt is wound outside the wheel set, the wheel set is used for driving the abrasive belt to rotate, and the driving device is used for driving the wheel set.
Adopt above-mentioned scheme, wherein automatic module of polishing can carry out surface treatment to the contact wire, solve the contact wire surface because the wearing and tearing that the wearing and tearing produced are inhomogeneous, phenomenon such as side grinding and hard spot, it mainly carries out the polishing and the polishing to the contact surface through the abrasive band, wherein the abrasive band can carry out the rotation through the wheelset that sets up on the support, in the rotation in-process, through the comparatively crude surface of abrasive band, can realize polishing to the contact wire surface, wherein the wheelset passes through drive arrangement drive, when the wheelset rotates, the rotation can be followed to the abrasive band, through above-mentioned structure, replaced and carried out the mode that the contact wire was polished through artifical handheld emery wheel among the traditional art, construction danger that has avoided probably appearing in the artifical process of polishing has improved the efficiency that the contact wire was polished, quality and security.
The wheel set comprises a driving wheel and a plurality of driven wheels, the driving wheel is fixedly connected with an output shaft of the driving device, and the driving wheel and the plurality of driven wheels are both in rolling connection with the abrasive belt.
By adopting the scheme, the driving wheel is fixedly connected with the output shaft of the driving device and can transmit the torque of the output shaft to the abrasive belt so as to rotate the abrasive belt; the driven wheel is used to tension the sanding belt so that the closed construction of the sanding belt remains stable during rotation.
The support is provided with a tensioning wheel assembly, one end of the tensioning wheel assembly is in rolling connection with the abrasive belt, the other end of the tensioning wheel assembly is hinged with the support, the side part of the tensioning wheel assembly is hinged with an elastic assembly, and one end, far away from the tensioning wheel assembly, of the elastic assembly is hinged with the support.
By adopting the scheme, the running stability of the grinding wheel can be further improved, the tension of the abrasive belt in the running process can be improved by adding the tension wheel assembly, wherein the elastic assembly can continuously provide adaptive thrust for the tension wheel assembly, so that the tension wheel assembly can keep the tension effect on the abrasive belt when the abrasive belt moves.
The support is rotatably connected with an output shaft of the driving device, an electric pushing cylinder is hinged to the side portion of the support, and one end, far away from the support, of the electric pushing cylinder is hinged to the support.
By adopting the scheme, the angle adjustment of the automatic polishing module can be realized by extending or retracting the electric pushing cylinder, the automatic polishing module fixes the position of the automatic polishing module in the vertical direction through the output shaft in the scheme, and the polishing and polishing of different angles of the contact line can be realized through the scheme.
And a pressure sensor is arranged between the support and the contact force guaranteeing mechanism and used for detecting the pressure between the abrasive belt and the contact line.
By adopting the scheme, the pressure between the abrasive belt and the contact line can be detected through the pressure sensor, wherein the pressure between the abrasive belt and the contact line is determined by the distance between the device and the contact line, and when the device rises and approaches the contact line, the pressure is increased; when the device descends and is far away from the contact line, the pressure is reduced, if the numerical value detected by the pressure sensor is larger than the set maximum pressure value, the polishing operation is immediately stopped, and the contact line polisher resets to prevent the contact line from being damaged by the overlarge contact pressure.
The lifting mechanism comprises a scissor-type lifter, the top of the scissor-type lifter is provided with a plurality of guide rods in a sliding manner, the side parts of the guide rods are fixedly provided with an upper panel, and the guide rods are used for guiding the movement of the upper panel in the vertical direction;
the bottom fixedly connected with cylinder of top panel, the one end and the top fixed connection of cutting the formula lift that the top panel was kept away from to the cylinder.
By adopting the scheme, the air cylinder can retract adaptively when being subjected to pressure so as to ensure that the pressure of the upper panel and a contact object is constant and avoid the change of the contact pressure caused by the change of the distance between the automatic polishing module and the contact line, wherein the guide rod is used for ensuring that the upper panel can move vertical to the upper surface of the scissor lift and avoiding the inclination of the upper panel when the upper panel moves up and down; wherein the lifting structure is used for carrying out overall height adjustment on the device.
The top of the scissor lift is fixedly provided with a first displacement sensor which is used for monitoring the height of the upper panel.
Adopt above-mentioned scheme, wherein first displacement sensor can monitor the displacement of top panel to judge whether the cylinder stroke is compressed completely, be used for guaranteeing that contact force guarantee mechanism possess the passive compensation volume that can compress all the time.
A method for quickly polishing a rigid contact line is characterized by comprising the following steps:
step A: collecting damage type data into a storage system and forming a damage type database;
and B: acquiring contact line state inspection data, identifying the inspection data, and confirming a damage type S;
and C: matching the damage type S with a damage type database, and obtaining an optimal polishing strategy W:
step D: and controlling the polishing system to perform polishing operation and finish maintenance of the contact wire.
By adopting the scheme, the efficiency and the quality of contact line polishing can be improved, and the intellectualization of polishing strategy selection can be realized by automatically identifying the damage type of the current contact line and adopting the optimal polishing strategy.
The specific steps of the step D are as follows:
step D1: controlling the engineering truck to advance, detecting the real-time stroke S1 of the cylinder in real time, and monitoring whether the contact pressure is less than Fmax in real time;
step D2: if the contact pressure is greater than Fmax, the cylinder releases pressure emergently, and the electric push rod drives the lifting mechanism to descend;
step D2: if the contact pressure is smaller than Fmax, constantly monitoring whether the stroke of the cylinder is between 1/4 and 3/4 of the total stroke S of the cylinder; if the real-time stroke S1 of the air cylinder 604 is larger than 3/4 of the total stroke S, the electric push rod 802 drives the elevator to descend, so that the real-time stroke S1 of the air cylinder 604 is from 1/3 to 2/3 of the total stroke S;
step D3: if the real-time stroke S1 of the air cylinder 604 is smaller than 1/4 of the total stroke S, the electric push rod drives the lifting mechanism to ascend, so that the real-time stroke S1 of the air cylinder is between 1/3 and 2/3 of the total stroke S;
step D4: and after the adjustment is finished, the polishing operation is continued until the maintenance of the contact line is finished.
By adopting the scheme, a constructor can judge whether the pressure of the current automatic polishing module and the pressure of the contact wire are kept at a reasonable value or not through detecting the obtained pressure, and by the method, the contact wire can be effectively prevented from being damaged by overlarge polishing pressure or the polishing effect is poor due to the fact that the polishing pressure is too small.
In conclusion, the beneficial effects of the invention are as follows:
1. can avoid traditional technology in through the automatic module of polishing, the manpower is polished and is wasted time and energy, and the not high technical problem of efficiency, can regulate and control pressure of polishing in real time through contact force guarantee mechanism, avoids too big or undersize of contact force to produce the contact wire and damages or polish the not good phenomenon of effect, improves efficiency, effect and the security that the contact wire was polished.
2. Through automatic system of polishing, can distinguish the damage type of contact wire automatically to match the strategy of polishing that corresponds with the damage type, through this kind of scheme, can improve and polish the judgement efficiency of slightly polishing to contact wire damage type, and realize the intellectuality and the automation of polishing to the contact wire.
3. The polishing process is monitored in real time through the displacement sensor, and the polishing angle and the pressure between the automatic polishing modules can be adjusted according to the polishing state.
Drawings
FIG. 1 is a top down assembly view of the present invention;
FIG. 2 is a side view corner fitting schematic of the present invention;
FIG. 3 is a schematic side view structure of an automatic sanding module according to the present invention;
FIG. 4 is a schematic view of a top view of an automatic sanding module according to the present invention;
FIG. 5 is a schematic view of the assembled dust collector of the present invention;
FIG. 6 is a schematic side view structure of the contact force assurance mechanism of the present invention;
FIG. 7 is a flow chart of the construction of the present invention;
FIG. 8 is a schematic diagram of the matching of damage types and strategies according to the present invention;
FIG. 9 is a schematic side view of the lifting mechanism of the present invention;
figure 10 is a schematic diagram of a sanding system according to the present invention.
Reference numerals: 1, an insulator; 2-a busbar; 3-contact line; 4-a dust removal mechanism; 5-automatic polishing module 6-contact force guarantee mechanism; 7-a pressure sensor; 8-a lifting mechanism; 501-driven wheel; 502-a stent; 503-abrasive band; 504-a tension wheel assembly; 505-a drive wheel; 506-a support; 507-electric pushing cylinder; 508-an output shaft; 509-belt; 510-a motor; 403-dust collecting hood; 402-a hose; 401-a dust remover; 601-a guide bar support; 602-a guide bar; 603-upper panel; 604-a cylinder; 605-linear bearings; 606-a first displacement sensor; 801-scissor lift; 802-electric push rod; 803-second displacement sensor.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
The first embodiment is as follows:
a rigid contact line rapid polishing system comprising:
contact force ensuring mechanism 6: the automatic grinding module 5 is fixedly arranged at the top of the contact force guaranteeing structure 6 and is used for keeping the pressure between the automatic grinding module 5 and the contact line constant and protecting the contact line;
the lifting mechanism 8: used for adjusting the height of the automatic grinding module 5, and the contact force guaranteeing mechanism 6 is arranged at the top of the lifting mechanism 8.
In the above-mentioned scheme, wherein automatic module 5 of polishing carries out polishing to the contact line, wherein contact force assurance mechanism 6 is used for keeping the above-mentioned automatic pressure of polishing between module 5 and the contact line invariable, elevating system 8 is used for carrying out high coarse adjustment to the device, its relation of connection is the fixed top that sets up at contact force assurance mechanism 6 of automatic module 5 of polishing, contact force assurance mechanism 6 is fixed to be set up at elevating system 8's top, through this kind of scheme, can realize the automation that the contact line was polished, guarantee simultaneously to the pressure invariable of contact line, avoid producing too big or undersize contact force at the in-process of polishing and cause the contact line damage or polish the not good phenomenon of effect. The specific structure is shown in fig. 1-2.
In the above solution, in which the driving device is connected to the wheel set, in this embodiment, the driving device is a motor 510, and the overall structure is as shown in fig. 4, wherein the driving shaft of the motor 510 is connected to an output shaft 508, and the driving shaft of the motor 510 and the output shaft 508 are connected through a belt 509. Wherein the output shaft 508 is rotatably disposed on top of the support 506.
The automatic grinding module 5 is in contact with the contact wire 3, the contact wire 3 is arranged at the bottom of the busbar 2, the insulator 1 is arranged at the top of the busbar 2, and the dust removing mechanism 4 is arranged on one side of the automatic grinding module 5, wherein the dust removing mechanism 4 is used for collecting grinding generated by the automatic grinding module 5.
The driving shaft of the motor 510 is connected with the wheel set, and transmits the torque to the abrasive belt 503 through the wheel set, and the closed structure formed by the abrasive belt 503 rotates under the driving of the motor 510, and polishes the contact line 3. In the present embodiment, the driving shaft of the motor 510 outputs the torque to the wheel set through the output shaft 508, and the specific structure is shown in fig. 4.
The abrasive belt 503 passes through the outer wall of each rolling wheel in the wheel set in turn, and the abrasive belt 503 is connected end to form the above-mentioned closed structure, and the specific transmission relationship thereof is the same as that of the conveyor belt and the rollers, and will not be described in detail herein. The support is used for fixing each rolling wheel in the wheel set, so that the position of the rolling wheel is fixed, and the rolling wheel can rotate around the axis of the support.
The wheel set comprises a driving wheel 505 and a plurality of driven wheels 501, the driving wheel 505 is fixedly connected with an output shaft of the driving device, and the driving wheel 505 and the plurality of driven wheels 501 are both in rolling connection with the abrasive belt 503. Wherein drive wheel 505 is used for transmitting the torque of motor 510, because drive wheel 505 and abrasive belt 503 are connected for rolling, when drive wheel 505 rotates, ideally, no movement overcoming friction force is produced between the inner surface of abrasive belt 503 and the outer wall of drive wheel 505, abrasive belt 503 rotates along with drive wheel 505, in the process of abrasive belt 503 rotating, the effect of grinding and polishing can be realized by the rough outer surface of abrasive belt 503. The specific structure is shown in fig. 3-4.
A tension wheel assembly 504 is arranged on the support 502, one end of the tension wheel assembly 504 is in rolling connection with the abrasive belt 503, the other end of the tension wheel assembly 504 is hinged with the support 502, an elastic assembly is hinged to the side of the tension wheel assembly 504, and one end, far away from the tension wheel assembly 504, of the elastic assembly is hinged with the support 502.
In the above solution, one end of the tension wheel assembly 504 is hinged to the bracket 502, and the other end is a roller structure, and the roller structure is in rolling connection with the abrasive belt 503, specifically, the contact point of the closed structure formed by the roller structure and the abrasive belt 503 is located on the external tangent line of the driven wheel 501 and the driving wheel 505, by this solution, when the tension wheel assembly 504 is displaced in the horizontal direction, that is, the external tangent line has a tendency of increasing length, under this tendency, further tightening of the abrasive belt 503 can be realized, and the rotational stability of the abrasive belt 503 is increased. The closed structure formed by abrasive belt 503 is a concept made for the convenience of understanding in this embodiment, that is, a geometric shape formed by abrasive belt 503 under the tension of driving wheel 505 and two driven wheels 501. The horizontal displacement of the tension wheel assembly 504 means that when the tension wheel assembly 504 rotates around the hinge point with the bracket 502, the rotation direction of the tension wheel assembly 504 can be divided into a vertical displacement and a horizontal displacement, wherein the vertical displacement and the horizontal displacement can be enclosed to form a rectangle, the rotation direction at the moment is the diagonal direction of the rectangle, and the horizontal displacement of the tension wheel assembly 504 is the tension action on the abrasive belt 503.
The side of the tension wheel assembly 504 is connected with an elastic assembly, one end of the elastic assembly is connected to the middle of the tension wheel assembly 504, and the other end of the elastic assembly is hinged to the bracket 502, wherein the elastic assembly can provide thrust for the tension wheel assembly 504, so that the tension wheel assembly can press the abrasive belt 503 in real time, and the specific structure of the elastic assembly is shown in fig. 3. In this embodiment, the resilient member is preferably a spring.
The bracket 502 is rotatably connected with an output shaft of the driving device, an electric pushing cylinder 507 is hinged to the side of the bracket 502, and one end, far away from the bracket 502, of the electric pushing cylinder 507 is hinged to the support 506. Through this kind of structure, in the process that electric push rod 507 outwards released and inwards retracted, can realize the angular adjustment to automatic module 5 of polishing, in this kind of condition, electric push cylinder 507 and drive arrangement's actuating shaft form the support to support 502. When the dust collection cover 403 is installed, an optical hole may be formed in the dust collection cover 403, the electric pushing cylinder 507 is connected to the bracket 502 through the optical hole, and a cross bar is fixedly disposed at an end of the telescopic rod, the cross bar being perpendicular to the telescopic rod, wherein one end of the cross bar is hinged to the telescopic rod, and the other end of the cross bar is fixedly connected to the bracket 502.
In this embodiment, the dust collector 401 is connected to the dust collection cover 403 through a hose 402, and the grinding fallen in the dust collection cover 403 can be collected and disposed in the dust collector 401.
A pressure sensor 7 is arranged between the support 506 and the contact force ensuring means 6, which pressure sensor 7 is arranged to detect the pressure between the abrasive belt 503 and the contact line.
Wherein pressure sensor 7 bears the weight of automatic module 5 of polishing, when the abrasive band 503 on the automatic module 5 of polishing compresses tightly to the contact wire direction, pressure sensor 7's detection data increase, when the pressure between abrasive band 503 and the contact wire reduces, then pressure sensor 7 detects data and reduces, if the numerical value that pressure sensor 7 detected among the operation process of polishing is greater than the maximum pressure value of settlement, the operation of polishing stops immediately, cylinder 604 pressure release in the contact force guarantee mechanism 6, elevating system 8 resets, prevent that too big contact pressure from damaging the contact net.
The lifting mechanism 8 comprises a scissor type lifter 801, the top of the scissor type lifter 801 is slidably provided with a plurality of guide rods 602, the side of each guide rod 602 is fixedly provided with an upper panel 603, and the guide rods 602 are used for guiding the movement of the upper panel 603 in the vertical direction;
the bottom of the upper panel 603 is fixedly connected with a cylinder 604, and one end of the cylinder 604 far away from the upper panel 603 is fixedly connected with the top of the scissor lift 801.
In this embodiment, a plurality of guide rods 602 are slidably disposed on the top of the scissor lift 801, and the upper panel 603 is fixedly disposed on the side of the guide rods 602, specifically, a plurality of light holes matched with the guide rods 602 are disposed on the top plate of the scissor lift 801, the guide rods 602 can be inserted into the top plate of the scissor lift 801 through the light holes, and after connection, the upper panel 603 can move up and down along the direction of the guide rods 602;
the guide bar 602 can prevent the upper panel 603 from moving in the horizontal direction during sliding. Wherein the guide bar 602 is fixedly arranged on the guide bar support 601, wherein the guide bar support 601 increases the stability of the guide bar 602 on the upper panel 603, in this embodiment the guide bar support 601 is arranged on the upper panel 603.
Further, a linear bearing 605 is arranged at the top of the scissor lift 801, and the guide rod 602 is slidably arranged in the middle of the linear bearing 605.
The cylinder 604 is an element for realizing constant pressure in the device, the bottom of the cylinder 604 is fixedly connected with the scissor lift 801, the telescopic rod in the cylinder 604 is fixedly connected with the upper panel 603, and in this embodiment, the cylinder 604 extends and retracts in the vertical direction.
The top of the upper panel 603 is fixedly provided with an automatic polishing module 5, and when the pressure between the automatic polishing module 5 and the contact line 3 changes, specifically, the pressure increases, the air cylinder 604 can retract the telescopic rod under the action of the pressure; when the pressure is reduced, the telescopic rod extends outwards under the action of air pressure; when the pressure is stable and does not change, the cylinder is kept still. By the mode, the effect of keeping the pressure of the contact line constant can be achieved. Wherein the upper panel 603, the guide rod 602 and the cylinder 604 together constitute a contact pressure securing mechanism.
In a preferred scheme, the scissor lift is driven by an electric push rod 802, wherein slide rails are arranged at the top and the bottom of the electric push rod scissor lift 801, a scissor push rod is arranged in the middle of the scissor lift 801, two ends of the scissor push rod are respectively connected with the slide rails in a sliding manner, and the scissor push rod is pushed by the electric push rod 802, so that the scissor lift can be lifted; further, a second displacement sensor 803 is provided at the bottom of the scissor lift 801, and the second displacement sensor 803 is used to detect the lifting amount of the scissor lift 801.
The top of the scissor lift 801 is fixedly provided with a first displacement sensor 606, and the first displacement sensor 606 is used for monitoring the height of the upper panel 603.
With the above arrangement, the first displacement sensor 606 can monitor the height of the upper panel 603, and determine whether the amount of expansion and contraction of the cylinder 604 is within a normal range according to the height change.
Example two:
a method for quickly polishing a rigid contact line is characterized by comprising the following steps:
step A: collecting damage type data to a storage system and forming a damage type database;
and B: acquiring contact line state inspection data, identifying the inspection data, and confirming a damage code S;
and C: matching the damage type S with a damage type database, and obtaining an optimal polishing strategy W:
step D: and controlling the polishing system to perform polishing operation and finish maintenance of the contact wire.
In the above embodiment, the method includes a data source module, an analysis module, a decision module, and an execution module, where a specific system structure is shown in fig. 10, where the analysis module is configured to identify routing inspection data, determine a damage parameter, and obtain a damage code S, where the damage type S and the parameter include abnormal wear value, corrugation, hard spot, scratch, burn, and eccentric wear angle information, and a corresponding damage code S is obtained by matching, where a matching table of the damage code S, the damage parameter, and the type is shown in fig. 8. The flow chart is shown in fig. 7. The grinding strategy is W01-S06, different damage conditions are responded through different grinding pressures and engineering truck speeds, each damage condition is marked by a damage code S01-S06, the grinding strategies W01-W06 correspond one by one, if the abnormal abrasion values of corrugation and burn are 0.02mm, the damage code is judged to be S02, the strategy with the strategy code W02 is called, and the W02 strategy is that the angle grinding is alpha, the grinding pressure is (30K) N, and the engineering truck speed is 5 km/h. Wherein K is a damage coefficient, and alpha can be preset and adjusted according to actual practical requirements;
and if the abnormal abrasion values of the hard points and the scratches are 0.02mm or the abnormal abrasion values of the corrugation and the burn are 0.03mm, judging that the damage code is S03, calling a W03 strategy, wherein the W03 strategy is that the polishing angle is alpha, the polishing pressure is (60 × K) N, and the speed of the engineering truck is 3 km/h.
The specific steps of the step D are as follows:
step D1: controlling to advance through the engineering truck, detecting the real-time stroke S1 of the cylinder in real time, and monitoring whether the contact pressure is less than Fmax in real time;
step D2: if the contact pressure is greater than Fmax, the cylinder releases pressure emergently, and the electric push rod drives the lifting mechanism to descend;
step D2: if the contact pressure is smaller than Fmax, constantly monitoring whether the stroke of the cylinder is between 1/4 and 3/4 of the total stroke S of the cylinder; if the real-time stroke S1 of the air cylinder 604 is greater than 3/4 of the total stroke S, the electric push rod 802 drives the elevator to descend, so that the real-time stroke S1 of the air cylinder 604 is from 1/3 to 2/3 of the total stroke S;
step D3: if the real-time stroke S1 of the air cylinder 604 is smaller than 1/4 of the total stroke S, the electric push rod drives the lifting mechanism to ascend, so that the real-time stroke S1 of the air cylinder is between 1/3 and 2/3 of the total stroke S;
step D4: and after the adjustment is finished, continuing to perform polishing operation until the maintenance of the contact wire is finished.
In the above embodiment, in which the detected contact pressure is T1, it is first determined whether T1 is within the tolerance of the grinding pressure, wherein the upper limit of the grinding pressure is F1, the lower limit of the grinding pressure is F2, and the maximum value of the grinding pressure Fmax is greater than F1. The method comprises the following steps:
controlling the engineering truck to advance, and detecting the contact pressure T1 between the automatic polishing module and the contact line in real time;
if the detected contact pressure T1 is greater than the grinding pressure error upper limit F1, the lifting mechanism is controlled to descend; if the detected contact pressure T1 is smaller than the lower grinding pressure error limit F2, controlling the lifting mechanism to ascend; if the detected contact pressure T1 exceeds the maximum allowable grinding pressure Fmax, the grinding operation is stopped emergently, and the lifting mechanism is controlled to descend; after the polishing operation is finished, the automatic polishing module is closed, and the lifting mechanism descends to the initial position.
After polishing is completed, the air cylinder 604 releases the pressure, the lifting mechanism 8 descends to the initial position, the polishing abrasive belt 603 is closed, the polishing angle returns to the initial state, and the engineering truck stops.
Claims (10)
1. A rigid contact line rapid polishing system comprising:
automatic grinding module (5): the polishing device is used for grinding and polishing the contact line;
contact force securing mechanism (6): the automatic grinding module (5) is fixedly arranged at the top of the contact force guaranteeing structure (6);
lifting mechanism (8): the height of the automatic polishing module (5) is adjusted, and the contact force guaranteeing mechanism (6) is arranged at the top of the lifting mechanism (8).
2. The rigid contact line rapid grinding system according to claim 1, wherein the automatic grinding module (5) comprises a support (502) and a grinding belt (503), a wheel set is rotatably arranged on the support (502), a driving device is connected to the wheel set, the grinding belt (503) is wound outside the wheel set, the wheel set is used for driving the grinding belt (503) to rotate, and the driving device is used for driving the wheel set.
3. The rigid contact line rapid grinding system according to claim 2, wherein the wheel set comprises a driving wheel (505) and a plurality of driven wheels (501), the driving wheel (505) is fixedly connected with an output shaft of the driving device, and the driving wheel (505) and the plurality of driven wheels (501) are respectively connected with the abrasive belt (503) in a rolling manner.
4. The rigid contact line rapid grinding system according to claim 2, wherein a tension wheel assembly (504) is arranged on the bracket (502), one end of the tension wheel assembly (504) is connected with the abrasive belt (503) in a rolling way, the other end of the tension wheel assembly is hinged with the bracket (502), the side part of the tension wheel assembly (504) is hinged with an elastic assembly, and the end of the elastic member far away from the tension wheel assembly (504) is hinged with the bracket (502).
5. The rigid contact line rapid grinding system according to claim 2, wherein the bracket (502) is rotatably connected with an output shaft of the driving device, an electric pushing cylinder (507) is hinged on the side of the bracket (502), and a support (506) is hinged on one end of the electric pushing cylinder (507) far away from the bracket (502).
6. Rigid contact line rapid grinding system according to claim 5, characterized in that a pressure sensor (7) is arranged between the support (506) and the contact force guaranteeing mechanism (6), the pressure sensor (7) being used for detecting the pressure between the abrasive belt (503) and the contact line.
7. The rigid contact line rapid grinding system according to claim 1, wherein the lifting mechanism (8) comprises a scissor lift (801), the top of the scissor lift (801) is slidably provided with a plurality of guide rods (602), the side of the guide rods (602) is fixedly provided with an upper panel (603), and the guide rods (602) are used for guiding the movement of the upper panel (603) in the vertical direction;
the bottom of the upper panel (603) is fixedly connected with an air cylinder (604), and one end, far away from the upper panel (603), of the air cylinder (604) is fixedly connected with the top of the scissor lift (801).
8. The rigid contact line rapid grinding system of claim 7, wherein a first displacement sensor (606) is fixedly arranged on the top of the scissor lift (801), and the first displacement sensor (606) is used for monitoring the height of the upper panel (603).
9. A method of rapid grinding of a rigid contact line using any of claims 1 to 8, comprising the steps of:
step A: collecting damage type data to a storage system and forming a damage type database;
and B: acquiring contact line state inspection data, identifying the inspection data, and confirming a damage type S;
and C: matching the damage type S with a damage type database to obtain an optimal polishing strategy W;
step D: and controlling the polishing system to perform polishing operation and finish maintenance of the contact wire.
10. The method for rapidly polishing a rigid contact line as recited in claim 8, wherein said step D comprises the following steps:
step D1: controlling to advance through the engineering truck, detecting the real-time stroke S1 of the cylinder in real time, and monitoring whether the contact pressure is less than Fmax in real time;
step D2: if the contact pressure is greater than the maximum allowable grinding pressure Fmax, the air cylinder releases pressure emergently, and the electric push rod drives the lifting mechanism to descend;
step D2: if the contact pressure is smaller than the maximum allowable grinding pressure Fmax, constantly monitoring whether the stroke of the air cylinder is between 1/4 and 3/4 of the total stroke S of the air cylinder; if the real-time stroke S1 of the air cylinder 604 is greater than 3/4 of the total stroke S, the electric push rod 802 drives the elevator to descend, so that the real-time stroke S1 of the air cylinder 604 is from 1/3 to 2/3 of the total stroke S;
step D3: if the real-time stroke S1 of the air cylinder 604 is smaller than 1/4 of the total stroke S, the electric push rod drives the lifting mechanism to ascend, so that the real-time stroke S1 of the air cylinder is between 1/3 and 2/3 of the total stroke S;
step D4: and after the adjustment is finished, continuing to perform polishing operation until the maintenance of the contact wire is finished.
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