CN114986343A - A kind of rigid contact wire rapid grinding system and method - Google Patents

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

A kind of rigid contact wire rapid grinding system and method

technical field

The invention relates to the technical field of rail transit contact line grinding, in particular to a system and method for rapid grinding of rigid contact lines.

Background technique

With the continuous acceleration of the urbanization process in my country, the contradiction between urban infrastructure, especially urban transportation and urban development has gradually emerged. Urban rail transit can help the overall planning of the entire city, promote and guide the planning and construction and economic development along the line, and improve the situation of urban public transportation. , optimization of urban traffic structure and other aspects have played a positive role. Rigid catenary has a series of advantages such as stronger current carrying capacity, no danger of disconnection, high safety and reliability, few parts, convenient installation, simple maintenance, low maintenance cost, reduced tunnel clearance, and saving civil construction investment. It is widely used in urban rail transit power supply system by major cities.

During the actual operation, the pantograph vibrates very violently, especially in the elastic track bed section. The pantograph vibrates violently, while the rigid catenary is inelastic, and there is no dynamic coupling between the pantograph and the catenary, so the pressure change of the pantograph is relatively large, and the pantograph will produce a large impact force on the contact line. , causing a hard spot on the line surface of the contact line, and the appearance of the hard spot further aggravates the vibration of the pantograph when it passes through the place, forming a vicious circle. At the same time, the drastically changing pantograph pressure makes the pantograph unable to maintain good contact with the contact line. When the pantograph pressure becomes zero, it will go offline, causing arcing, burning the contact line, and making the line surface pitted. Uneven wear, or even abnormal wear such as side wear, affects the quality of the contact line and surface. The abnormal wear of the contact wire will affect the normal matching relationship of the pantograph and catenary, reduce the quality of the pantograph, shorten the service life of the contact wire, and even have a certain impact on the safe operation of urban rail transit. During the operation of the rail vehicle, the vehicle will swing up and down, especially in the acceleration section, the vehicle will swing at an accelerated rate, and the distance between the vehicle and the contact line will change constantly; There will be a certain deviation in height, which further increases the deviation of the distance between the vehicle and the contact line.

Contact line grinding is the most effective pantograph-catenary relationship disposal measure at present. The grinding coverage should be maximized, and the entire line of grinding should be completed in a short time to ensure that the catenary can maintain a good technical state and improve the pantograph-catenary matching relationship. Due to the lack of machinery and equipment for contact wire grinding on the market, manual or hand-held polishing machines are currently used to polish the contact wire to ensure its smooth surface and relieve abnormal wear.

SUMMARY OF THE INVENTION

In view of the above deficiencies in the prior art, the present invention provides a system and method for rapid grinding of rigid contact lines, which solves the problems of low manual grinding efficiency and poor grinding effect in the traditional technology.

In order to achieve the above-mentioned purpose of the invention, the technical scheme adopted in the present invention is:

A rigid contact wire rapid grinding system comprising:

Automatic grinding module: used for grinding and polishing the contact line;

Contact force guarantee mechanism: It is used to keep the pressure between the automatic grinding module and the contact line constant and protect the contact line. The automatic grinding module is fixed on the top of the contact force guarantee structure;

Lifting mechanism: used to adjust the height of the automatic grinding module, and the contact force guarantee mechanism is on the top of the lifting mechanism.

With the above solution, the contact line can be automatically polished by the automatic polishing module, which avoids the problem of low efficiency caused by the manual polishing method in the traditional technology. The contact force guarantee mechanism can ensure that the pressure between the automatic polishing module and the contact line is constant. During the grinding process, avoid the contact force being too large or too small, which will lead to the damage of the contact line or the poor grinding effect; the lifting mechanism is used for rough adjustment of the height of the device, so that the device can adapt to the contact lines of various heights, and the grinding During the process, the height is adjusted according to the size of the contact force.

The automatic grinding module includes a bracket and an abrasive belt. A wheel set is rotatably arranged on the bracket. The wheel set is connected with a driving device. The abrasive belt is wound on the outside of the wheel set.

With the above solution, the automatic grinding module can perform surface treatment on the contact line to solve the phenomenon of uneven wear, side grinding and hard spots on the surface of the contact line due to wear. The grinding and polishing of the contact surface is mainly performed by the abrasive belt. The abrasive belt can rotate through the wheel set on the bracket. During the rotation process, the surface of the contact line can be polished through the rough outer surface of the abrasive belt. The wheel set is driven by the driving device. When rotating, the abrasive belt can follow the rotation. The above structure replaces the traditional method of hand-held grinding wheel for contact line grinding, avoids the construction danger that may occur in the manual grinding process, and improves the efficiency of contact line grinding. quality and safety.

The wheel set includes a driving wheel and several driven wheels, the driving wheel is fixedly connected with the output shaft of the driving device, and the driving wheel and several driven wheels are all connected with the abrasive belt in rolling connection.

The above scheme is adopted, wherein the driving wheel is fixedly connected with the output shaft of the driving device, and the torque of the output shaft can be transmitted to the abrasive belt to make the abrasive belt rotate; the driven wheel is used to tension the abrasive belt, so that the abrasive belt of the closed structure is Keep running stable during rotation.

A tensioning wheel assembly is arranged on the bracket, one end of the tensioning wheel assembly is rollingly connected with the abrasive belt, and the other end is hinged with the bracket. Hinged.

The above solution can further improve the stability of the operation of the grinding wheel. The tension of the abrasive belt during the operation can be improved by the additional tensioning wheel assembly, wherein the elastic assembly can continuously provide an adaptive thrust to the tensioning wheel assembly, so that the The tensioner assembly maintains the tension on the abrasive belt when the abrasive belt is active.

The bracket is rotatably connected with the output shaft of the driving device, the side part of the bracket is hinged with an electric push cylinder, and one end of the electric push cylinder away from the bracket is hinged with the support.

With the above solution, the angle adjustment of the automatic grinding module can be realized by extending or retracting the electric push cylinder. In this solution, the automatic grinding module is fixed in the vertical direction through the output shaft. The solution can realize grinding and polishing of different angles of the contact line.

A pressure sensor is arranged between the support and the contact force guarantee mechanism, and the pressure sensor is used to detect the pressure between the abrasive belt and the contact line.

With the above solution, the pressure between the abrasive belt and the contact line can be detected by a 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. When the device rises and approaches the contact line, the The pressure increases; when the device descends and moves away from the contact line, the pressure decreases. If the value detected by the pressure sensor is greater than the set maximum pressure value, the grinding operation will be stopped immediately, and the contact line grinder will be reset to prevent excessive contact Pressure damages the catenary.

The lifting mechanism includes a scissor lift, the top of the scissor lift is slidably provided with several guide rods, the side of the guide rod is fixedly provided with an upper panel, and the several guide rods are used to guide the movement of the upper panel in the vertical direction;

A cylinder is fixedly connected to the bottom of the upper panel, and one end of the cylinder away from the upper panel is fixedly connected to the top of the scissor lift.

The above solution is adopted, wherein the cylinder can be adaptively retracted when under pressure, so as to ensure the constant pressure between the upper panel and the contact object, and avoid the change of the contact pressure caused by the change of the distance between the automatic grinding module and the contact line, wherein the guide rod It is used to ensure that the upper panel can move perpendicular to the upper surface of the scissor lift, so as to prevent the upper panel from tilting when it moves up and down; the lifting structure is used to adjust the overall height of the device.

A first displacement sensor is fixedly arranged on the top of the scissor lift, and the first displacement sensor is used to monitor the height of the upper panel.

With the above solution, the first displacement sensor can monitor the moving distance of the upper panel and determine whether the stroke of the cylinder is completely compressed, so as to ensure that the contact force guarantee mechanism always has a passive compensation amount that can be compressed.

A method for rapid grinding of rigid contact lines, characterized in that it comprises the following steps:

Step A: Collect damage type data into the storage system, and form a damage type database;

Step B: Obtain the contact line state inspection data, identify the inspection data, and confirm the damage type S;

Step C: Match the damage type S with the damage type database, and get the best grinding strategy W:

Step D: Control the grinding system to carry out the grinding operation, and complete the maintenance of the contact line.

The above solution can improve the efficiency and quality of contact line grinding. By automatically identifying the damage type of the current contact line and adopting the best grinding strategy, the selection of the grinding strategy can be intelligently selected.

The specific steps of step D are:

Step D1: Control the advance through the engineering vehicle, and detect the real-time stroke S1 of the cylinder in real time, and monitor in real time whether the contact pressure is less than Fmax;

Step D2: If the contact pressure is greater than Fmax, the cylinder is urgently depressurized, and the electric push rod drives the lifting mechanism to descend;

Step D2: If the contact pressure is less than Fmax, monitor whether the stroke of the cylinder is between 1/4 and 3/4 of the total stroke S of the cylinder; if the real stroke S1 of the cylinder 604 is greater than 3/4 of the total stroke S, then The electric push rod 802 drives the elevator to descend, so that the real-time stroke S1 of the cylinder 604 is at 1/3 to 2/3 of the total stroke S;

Step D3: if the real-time stroke S1 of the cylinder 604 is less than 1/4 of the total stroke S, the electric push rod drives the lifting mechanism to rise, so that the real-time stroke S1 of the cylinder is between 1/3 and 2/3 of the total stroke S;

Step D4: After the adjustment is completed, continue the grinding operation until the maintenance of the contact line is completed.

With the above solution, the construction personnel can judge whether the current pressure of the automatic grinding module and the contact line is maintained at a reasonable value through the detected pressure. This method can effectively prevent the contact line from being damaged by excessive grinding pressure, or caused by excessive grinding pressure. Poor sanding occurs.

To sum up, the beneficial effects of the present invention are:

1. The automatic grinding module can avoid the technical problems of time-consuming, labor-intensive and low-efficiency manual grinding in the traditional technology. The contact force guarantee mechanism can control the grinding pressure in real time to avoid contact line damage caused by too large or too small contact force. Or the phenomenon of poor grinding effect, improve the efficiency, effect and safety of contact line grinding.

2. Through the automatic grinding system, the damage type of the contact line can be automatically distinguished, and the grinding strategy corresponding to the damage type can be matched. Through this scheme, the judgment efficiency of the contact line damage type and grinding rub can be improved, and the contact line can be judged efficiently. The intelligence and automation of line grinding.

3. The grinding process is monitored in real time by the displacement sensor, and the grinding angle and the pressure between the automatic grinding modules can be adjusted according to the grinding state.

Description of drawings

Fig. 1 is the top-view angle assembly schematic diagram of the present invention;

Fig. 2 is the side view assembly schematic diagram of the present invention;

Fig. 3 is the structural schematic diagram of the side view angle of the automatic grinding module of the present invention;

4 is a schematic view of the top view angle structure of the automatic grinding module of the present invention;

Fig. 5 is the assembly schematic diagram of the dust collector of the present invention;

FIG. 6 is a schematic structural diagram of a side view of the contact force guarantee mechanism of the present invention;

Fig. 7 is the construction flow chart of the present invention;

8 is a schematic diagram of damage type and strategy matching according to the present invention;

9 is a schematic structural diagram of a side view of the lifting mechanism of the present invention;

FIG. 10 is a schematic structural diagram of the grinding system of the present invention.

Reference numerals: 1-insulator; 2-bus bar; 3-contact wire; 4-dust removal mechanism; 5-automatic grinding module 6-contact force guarantee mechanism; 7-pressure sensor; 8-lifting mechanism; 501-driven wheel; 502-bracket; 503-abrasive belt; 504-tensioner assembly; 505-drive wheel; 506-support; 507-electric push cylinder; 508-output shaft; 509-belt; 510-motor; 403-dust cover ;402-hose;401-dust collector;601-guide rod support;602-guide rod;603-upper panel;604-cylinder;605-linear bearing;606-first displacement sensor;801-scissor lift; 802 - electric push rod; 803 - second displacement sensor.

Detailed ways

The specific embodiments of the present invention are described below to facilitate those skilled in the art to understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Such changes are obvious within the spirit and scope of the present invention as defined and determined by the appended claims, and all inventions and creations utilizing the inventive concept are within the scope of protection.

Example 1:

A rigid contact wire rapid grinding system comprising:

Automatic grinding module 5: used for grinding and polishing the contact line;

Contact force guarantee mechanism 6: used to make the pressure between the automatic grinding module 5 and the contact line constant, and to protect the contact line, the automatic grinding module 5 is fixedly arranged on the top of the contact force guarantee structure 6;

Lifting mechanism 8 : used to adjust the height of the automatic grinding module 5 , and the contact force guarantee mechanism 6 is arranged on the top of the lifting mechanism 8 .

In the above solution, the automatic grinding module 5 is used to grind the contact line, wherein the contact force guarantee mechanism 6 is used to keep the pressure between the automatic grinding module 5 and the contact line constant, and the lifting mechanism 8 is used to roughen the device. Adjustment, the connection relationship is that the automatic grinding module 5 is fixedly arranged on the top of the contact force guarantee mechanism 6, and the contact force guarantee mechanism 6 is fixedly arranged on the top of the lifting mechanism 8. Through this solution, the automation of the contact wire grinding can be realized, while ensuring The pressure on the contact line is constant, avoiding the phenomenon that the contact line is damaged or the grinding effect is not good due to the excessive or small contact force during the grinding process. Its specific structure is shown in Figure 1-Figure 2.

The automatic grinding module 5 includes a bracket 502 and an abrasive belt 503. The bracket 502 is rotatably provided with a wheel group, the wheel group is connected with a driving device, the abrasive belt 503 is wound on the outside of the wheel group, and the wheel group is used to drive the abrasive belt 503 to rotate. For driving wheels.

In the above solution, the wheel set is connected with a driving device. In this embodiment, the driving device is a motor 510. The overall structure is shown in FIG. The shaft is connected to the output shaft 508 by a belt 509 . The output shaft 508 is rotatably arranged on the 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 bus bar 2, the insulator 1 is arranged on the top of the bus bar 2, and a dust removal mechanism 4 is arranged on one side of the automatic grinding module 5, wherein the dust removal mechanism 4 is used for collecting Grinding generated by automatic grinding module 5.

The drive shaft of the motor 510 is connected with the wheel set, and the torque is transmitted to the abrasive belt 503 through the wheel set. In this embodiment, the drive shaft of the motor 510 outputs the torque to the wheel set through the output shaft 508, the specific structure of which is shown in FIG. 4 .

The abrasive belt 503 bypasses the outer wall of each rolling wheel in the wheel group in turn, and the abrasive belt 503 is connected end to end to form the above-mentioned closed structure. The bracket is used to fix each rolling wheel in the wheel set, so that the position of the rolling theory is fixed, and it can rotate around its own axis.

The wheel set includes a driving wheel 505 and several driven wheels 501 , the driving wheel 505 is fixedly connected with the output shaft of the driving device, and both the driving wheel 505 and the several driven wheels 501 are connected with the abrasive belt 503 in rolling connection. The driving wheel 505 is used to transmit the torque of the motor 510. Since the driving wheel 505 and the abrasive belt 503 are in rolling connection, when the driving wheel 505 rotates, ideally, between the inner surface of the abrasive belt 503 and the outer wall of the driving wheel 505 The abrasive belt 503 rotates along with the driving wheel 505 without generating motion to overcome the frictional force. During the rotation of the abrasive belt 503, the rough surface of the abrasive belt 503 can achieve the effect of grinding and polishing. Its specific structure is shown in Figures 3-4.

The bracket 502 is provided with a tensioning wheel assembly 504. One end of the tensioning wheel assembly 504 is connected with the abrasive belt 503 in a rolling manner, and the other end is hinged with the bracket 502. The side of the tensioning wheel assembly 504 is hinged with an elastic component, and the elastic member is far away from the tensioner. One end of the wheel assembly 504 is hinged to the bracket 502 .

In the above solution, one end of the tensioning wheel assembly 504 is hinged on the bracket 502, and the other end is a roller structure, which is connected to the abrasive belt 503 in a rolling manner. Specifically, the roller structure and the abrasive belt 503 form a closed structure. The contact point is located on the outer tangent line of the above-mentioned driven wheel 501 and the driving wheel 505. With this solution, when the tensioning wheel assembly 504 is displaced in the horizontal direction, that is, the above-mentioned outer tangent line has a tendency to increase in length. In this trend Then, further tightening of the abrasive belt 503 can be achieved, and the rotational stability of the abrasive belt 503 can be increased. The closed structure formed by the above-mentioned abrasive belt 503 is a concept made in this embodiment for the convenience of understanding, that is, the geometric shape formed by the abrasive belt 503 under the tensioning action of the driving wheel 505 and the two driven wheels 501 . The tensioning wheel assembly 504 is displaced in the horizontal direction, which means that when the tensioning wheel assembly 504 rotates around the hinge point with the bracket 502, its rotation direction can be decomposed into a vertical displacement and a horizontal direction. The displacement in the vertical direction and the displacement in the horizontal direction can be enclosed into a rectangle, the rotation direction at this moment is the diagonal direction of the rectangle, and the tension on the sand belt 503 is the tension Displacement of the tensioner assembly 504 in the horizontal direction.

The side of the above-mentioned tensioner assembly 504 is connected with an elastic assembly, one end is connected to the middle of the tensioner assembly 504, and the other end is hinged on the bracket 502, wherein the elastic assembly can provide thrust for the tensioner assembly 504, so that the tensioner The assembly compresses the abrasive belt 503 in real time, and its specific structure is shown in FIG. 3 . In this embodiment, the elastic component is preferably a spring.

The bracket 502 is rotatably connected with the output shaft of the driving device. The side of the bracket 502 is hinged with an electric push cylinder 507 , and one end of the electric push cylinder 507 away from the bracket 502 is hinged with the support 506 . With this structure, the angle adjustment of the automatic grinding module 5 can be realized during the process of pushing the electric push bar 507 outward and retracting inward. In this case, the electric push cylinder 507 and the drive shaft of the driving device A support for bracket 502 is formed. In the case of installing the dust collecting cover 403, a light hole can be opened on the dust collecting cover 403, and the electric push cylinder 507 can be connected to the bracket 502 through the light hole, and a cross bar is fixed at the end of the telescopic rod. The transverse rod is perpendicular to the telescopic rod, wherein one end of the transverse rod is hinged with the telescopic rod, and the other end is fixedly connected with the bracket 502 .

In this embodiment, the dust collecting hood 403 is connected with the dust collector 401 through the hose 402 , and the grinding that falls into the dust collecting hood 403 can be collected and processed in the dust collector 401 .

A pressure sensor 7 is arranged between the support 506 and the contact force guarantee mechanism 6, and the pressure sensor 7 is used to detect the pressure between the abrasive belt 503 and the contact line.

The pressure sensor 7 bears the weight of the automatic grinding module 5. When the abrasive belt 503 on the automatic grinding module 5 is pressed in the direction of the contact line, the detection data of the pressure sensor 7 increases. When the pressure between the abrasive belt 503 and the contact line When it decreases, the detection data of the pressure sensor 7 decreases. During the grinding operation, if the value detected by the pressure sensor 7 is greater than the set maximum pressure value, the grinding operation is stopped immediately, and the air cylinder 604 in the contact force guarantee mechanism 6 is released. The lifting mechanism 8 is reset to prevent excessive contact pressure from damaging the catenary.

The lifting mechanism 8 includes a scissor lift 801. The top of the scissor lift 801 is slidably provided with several guide rods 602. The side of the guide rod 602 is fixed with an upper panel 603, and the several guide rods 602 are used for the vertical direction of the upper panel 603. to guide the movement on the

A cylinder 604 is fixedly connected to the bottom of the upper panel 603 , and one end of the cylinder 604 away from the upper panel 603 is fixedly connected to the top of the scissor lift 801 .

In this embodiment, several guide rods 602 are slidably arranged on the top of the scissor lift 801, and the above-mentioned upper panel 603 is fixedly arranged on the side of the guide rod 602. Specifically, the top plate of the scissor lift 801 is provided with several guide rods The light hole matched with the rod 602, the guide rod 602 can pass through the light hole to be inserted into the top plate of the scissor lift 801, and after the connection, the upper plate 603 can move up and down along the direction of the guide rod 602;

The above-mentioned guide rod 602 can prevent the upper panel 603 from moving in the horizontal direction during the sliding process. The guide rod 602 is fixedly arranged on the guide rod support 601, wherein the guide rod support 601 can increase the stability of the guide rod 602 on the upper panel 603. In this embodiment, the guide rod support 601 is arranged on the upper panel 603 superior.

Further, the top of the scissor lift 801 is provided with a linear bearing 605 , and the guide rod 602 is slidably arranged in the middle of the linear bearing 605 .

The cylinder 604 is the component that achieves constant pressure in the device, the bottom of the cylinder 604 is fixedly connected with the scissor lift 801, and the telescopic rod in the cylinder 604 is fixedly connected with the upper panel 603. In this embodiment, the cylinder 604 is in the vertical direction to stretch.

The top of the upper panel 603 is fixedly provided with the automatic grinding module 5. When the pressure between the automatic grinding module 5 and the contact line 3 changes, specifically when the pressure increases, the cylinder 604 can retract the telescopic rod under the action of the pressure; When it becomes smaller, the telescopic rod stretches out under the action of air pressure; when the pressure is stable and does not change, the cylinder remains stationary. In the above manner, the effect of keeping the contact line pressure constant can be achieved. The upper panel 603, the guide rod 602 and the cylinder 604 together form a contact pressure guarantee mechanism.

In a preferred solution, the scissor lift is driven by an electric push rod 802, wherein the top and bottom of the electric push rod scissor lift 801 are provided with sliding rails, and the middle of the scissor lift 801 is provided with a scissor push rod. The two ends of the scissor-type push rod are respectively slidably connected with the slide rail, and the scissor-type push rod can be pushed by the electric push rod 802 to realize the lifting and lowering of the scissor lift. No detailed description is given; 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 .

A first displacement sensor 606 is fixedly disposed on the top of the scissor lift 801 , and the first displacement sensor 606 is used to monitor the height of the upper panel 603 .

With the above solution, the first displacement sensor 606 can monitor the height of the upper panel 603 and judge whether the telescopic amount of the air cylinder 604 is within the normal range according to the height change.

Embodiment 2:

A method for rapid grinding of rigid contact lines, characterized in that it comprises the following steps:

Step A: Collect damage type data into the storage system, and form a damage type database;

Step B: Obtain the contact line state inspection data, identify the inspection data, and confirm the damage code S;

Step C: Match the damage type S with the damage type database, and get the best grinding strategy W:

Step D: Control the grinding system to carry out the grinding operation, and complete the maintenance of the contact line.

In the above embodiment, the method includes a data source module, an analysis module, a decision module and an execution module, and its specific system structure is shown in Figure 10, wherein the analysis module is used to identify inspection data, confirm damage parameters and obtain Damage code S, where the damage type S and parameters include abnormal wear value, corrugation, hard point, scratch, burn and eccentric wear angle information, matching to obtain the corresponding damage code S, where the damage code S matches the damage parameters and types The table is shown in Figure 8. Its flow chart is shown in Figure 7. Among them, the grinding strategy is W01-S06, which is to deal with different damage situations through different grinding pressures and engineering vehicle speeds. Each damage situation is marked by the damage code S01-S06, and corresponds to the grinding strategies W01-W06 one by one. If wave grinding, If the abnormal wear value of burns is 0.02mm, the damage code is judged to be S02, and the strategy code W02 is called. The above W02 strategy is angle grinding as α, grinding pressure as (30*K)N, and construction vehicle speed as 5km /h. Among them, K is the damage coefficient, and α can be preset and adjusted according to actual practical needs;

If the abnormal wear values of hard points and scratches are both 0.02mm, or the abnormal wear values of wave grinding and burns are both 0.03mm, the damage code is judged to be S03, and the W03 strategy is called. The above W03 strategy is that the grinding angle is α, the grinding The pressure is (60*K)N, and the speed of the construction vehicle is 3km/h.

The specific steps of step D are:

Step D1: Control the advance through the engineering vehicle, and detect the real-time stroke S1 of the cylinder in real time, and monitor in real time whether the contact pressure is less than Fmax;

Step D2: If the contact pressure is greater than Fmax, the cylinder is urgently depressurized, and the electric push rod drives the lifting mechanism to descend;

Step D2: If the contact pressure is less than Fmax, monitor whether the stroke of the cylinder is between 1/4 and 3/4 of the total stroke S of the cylinder; if the real stroke S1 of the cylinder 604 is greater than 3/4 of the total stroke S, then The electric push rod 802 drives the elevator to descend, so that the real-time stroke S1 of the cylinder 604 is at 1/3 to 2/3 of the total stroke S;

Step D3: if the real-time stroke S1 of the cylinder 604 is less than 1/4 of the total stroke S, the electric push rod drives the lifting mechanism to rise, so that the real-time stroke S1 of the cylinder is between 1/3 and 2/3 of the total stroke S;

Step D4: After the adjustment is completed, continue the grinding operation until the maintenance of the contact line is completed.

In the above embodiment, where the detected contact pressure is T1, first determine whether T1 is within the allowable error of the grinding pressure, wherein the allowable upper limit of the grinding pressure is F1, and the allowable lower limit of the grinding pressure is F2. The value is greater than F1. Specifically:

Control the advance of the engineering vehicle, and detect the contact pressure T1 between the automatic grinding module and the contact line in real time;

If the detected contact pressure T1 is greater than the upper limit of the grinding pressure error F1, the lifting mechanism is controlled to descend; if the detected contact pressure T1 is less than the lower limit F2 of the grinding pressure error, the lifting mechanism is controlled to rise; if the detected contact pressure T1 exceeds the maximum When the grinding pressure Fmax is allowed, the grinding operation is stopped urgently, and the lifting mechanism is controlled to descend; after the grinding operation is completed, the automatic grinding module is turned off, and the lifting mechanism is lowered to the initial position.

After the grinding is completed, the air cylinder 604 is depressurized, the lifting mechanism 8 is lowered to the initial position, the grinding belt 603 is closed, the grinding angle is restored to the initial state, and the construction vehicle is stopped.

Claims (10)

1. a rigid contact line quick grinding system, is characterized in that, comprises: Automatic grinding module (5): used for grinding and polishing the contact line; Contact force guarantee mechanism (6): used to make the pressure between the automatic grinding module (5) and the contact line constant, and protect the contact line, the automatic grinding module (5) is fixedly arranged on the contact force guarantee structure (6) top; Lifting mechanism (8): used to adjust the height of the automatic grinding module (5), and the contact force guarantee mechanism (6) is arranged on 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 bracket (502) and an abrasive belt (503), and the bracket (502) is rotatably provided with Wheel set, the wheel set is connected with a driving device, the abrasive belt (503) is wound on the outside of the wheel set, the wheel set is used to drive the abrasive belt (503) to rotate, and the driving device is used for The wheel set is driven. 3. The rigid contact wire 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 connected with the driving wheel (505) The output shaft of the device is fixedly connected, and the driving wheel (505) and the driven wheels (501) are all connected to the abrasive belt (503) in a rolling connection. 4. The rapid grinding system for rigid contact lines according to claim 2, wherein a tensioning wheel assembly (504) is provided on the bracket (502), and one end of the tensioning wheel assembly (504) is connected to the The abrasive belt (503) is in rolling connection, the other end is hinged with the bracket (502), and an elastic component is hinged on the side of the tensioning wheel assembly (504), and the elastic member is away from the tensioning wheel assembly (504). ) is hinged to the bracket (502). 5. The rigid contact wire rapid grinding system according to claim 2, wherein the bracket (502) is rotatably connected with the output shaft of the driving device, and an electric pusher is hinged on the side of the bracket (502). A cylinder (507), and a support (506) is hinged at one end of the electric push cylinder (507) away from the bracket (502). 6 . The rapid grinding system for rigid contact lines according to claim 5 , wherein a pressure sensor ( 7 ) is arranged between the support ( 506 ) and the contact force guarantee mechanism ( 6 ), and the pressure sensor ( 7) For detecting the pressure between the abrasive belt (503) and the contact line. 7 . The rapid grinding system for rigid contact lines according to claim 1 , wherein the lifting mechanism ( 8 ) comprises a scissor lift ( 801 ), and the top of the scissor lift ( 801 ) is slidably provided with several guides. 8 . A rod (602), an upper panel (603) is fixedly arranged on the side of the guide rod (602), and a plurality of the guide rods (602) are used for moving the upper panel (603) in the vertical direction guide; A cylinder (604) is fixedly connected to the bottom of the upper panel (603), and an end of the cylinder (604) away from the upper panel (603) is fixedly connected to the top of the scissor lift (801). 8 . The rapid grinding system for rigid contact lines according to 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 ) Used to monitor the height of the upper panel (603). 9. A method for quick grinding of rigid contact lines applying any one of claims 1-8, characterized in that, comprising the following steps: Step A: Collect damage type data into the storage system, and form a damage type database; Step B: Obtain the contact line state inspection data, identify the inspection data, and confirm the damage type S; Step C: Match the damage type S with the damage type database, and obtain the best grinding strategy W; Step D: Control the grinding system to carry out the grinding operation, and complete the maintenance of the contact line. 10. The method for quick grinding of rigid contact lines according to claim 8, wherein the specific steps of the step D are: Step D1: Control the advance through the engineering vehicle, and detect the real-time stroke S1 of the cylinder in real time, and monitor in real time whether the contact pressure is less than Fmax; Step D2: If the contact pressure is greater than the maximum allowable grinding pressure Fmax, the cylinder is urgently depressurized, and the electric push rod drives the lifting mechanism to descend; Step D2: If the contact pressure is less than the maximum allowable grinding pressure Fmax, monitor 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 cylinder 604 is greater than 3 of the total stroke S /4, the electric push rod 802 drives the elevator to descend, so that the real-time stroke S1 of the cylinder 604 is at 1/3 to 2/3 of the total stroke S; Step D3: if the real-time stroke S1 of the cylinder 604 is less than 1/4 of the total stroke S, the electric push rod drives the lifting mechanism to rise, so that the real-time stroke S1 of the cylinder is between 1/3 and 2/3 of the total stroke S; Step D4: After the adjustment is completed, continue the grinding operation until the maintenance of the contact line is completed.

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