WO2022193939A1

WO2022193939A1 - Derusting device for steel rails

Info

Publication number: WO2022193939A1
Application number: PCT/CN2022/078547
Authority: WO
Inventors: 徐则波; 李铨; 范宝明; 徐明发; 刘习生; 吴超; 吴喃喃; 杜文秀
Original assignee: 中铁上海工程局集团(苏州)轨道交通科技研究院有限公司; 中铁上海工程局集团华海工程有限公司
Priority date: 2021-03-18
Filing date: 2022-03-01
Publication date: 2022-09-22
Also published as: CN214656050U; DE202022101411U1

Abstract

A derusting device for steel rails (600), the derusting device comprising a first trolley (100), a plurality of laser generators (200), a smoke purification device (300), a second trolley (400), and a plurality of laser emission devices (500). The derusting device carries the laser generators (200) and the smoke purification device (300) along the steel rails (600) by means of the first trolley (100), and carries the laser emission devices (500) along the steel rails (600) by means of the second trolley (400); and the laser generators (200) and the laser emission devices (500) perform laser derusting work on the steel rails (600), and the smoke purification device (300) collects an exhaust gas and particulate matter generated by derusting. The derusting device is simple to operate, has a low equipment cost and has high work efficiency, thereby reducing the labor intensity of construction workers, improving the construction environment, and having good application prospects.

Description

A derusting device for rails

technical field

The utility model relates to a rust removal device for steel rails.

Background technique

After the rail leaves the factory, due to factors such as long-term placement, the surface of the rail is prone to rust. In the process of urban rail transit construction, the welding of seamless rails is mostly performed by means of flash butt welding. When using the flash butt welding method, it is necessary to energize both ends of the rail to be welded, but corrosion will seriously affect the energization efficiency of the rail and the welding result, and in severe cases, the energization circuit cannot be formed.

At present, in the construction of domestic urban rail transit, manual grinding machines or hand-held grinding machines are often used to remove rust on the rails. The grinding wheel grinds the rails by grinding, which inevitably damages the base metal of the rails. At the same time, grinding will also produce metal processing powder, which seriously pollutes the working environment in the tunnel. Due to the complex environment of the construction site, the rails are easily contaminated with pollutants such as oil and other pollutants. Due to the use of contact cleaning methods such as grinding machines, it is easy to attach pollutants or sand on the grinding wheel to the surface of the rail after grinding, resulting in secondary rust removal. Pollution. The rust removal results are mostly judged by the human eye, and the rust removal efficiency is greatly affected by the operator's proficiency. The above-mentioned rust removal methods are time-consuming and labor-intensive, and the construction process will cause great damage to the health of operators, which cannot meet the accuracy and speed requirements of the current seamless line laying.

SUMMARY OF THE INVENTION

In order to solve the problems of low work efficiency, large environmental pollution, serious wear on the base metal of the rail, and consumption of a lot of human resources, etc. in the manual hand-held grinder to remove the rust of the rail, the utility model proposes a rust removal device for the rail. .

The rust removal device for steel rails provided by the utility model comprises a first trolley, a plurality of laser generators, a smoke purification device, a second trolley and a plurality of laser emission devices;

The first trolley comprises a first vehicle body and a first wheel, and the first wheel is arranged at the bottom of the first vehicle body and moves along the rail; the first vehicle body is used for carrying the laser generator and the smoke purification device;

The plurality of laser generators are arranged on the first trolley, and each laser generator is provided with a resonant cavity for generating laser light;

The smoke purification device is arranged on the first trolley; the smoke purification device is provided with a centrifugal fan for collecting waste gas and particulate matter generated by rust removal;

The second trolley includes a second vehicle body, a second wheel and two mounting brackets. The second wheel is arranged at the bottom of the second vehicle body and moves along the rails; the two mounting brackets are fixedly arranged on the second vehicle body and extend toward the rail and distributed on both sides of the rail;

Each mounting frame is provided with two laser emitting devices, which are used to emit laser light to remove rust on the surface of the rail.

Preferably, the two mounting brackets are arranged asymmetrically on both sides of the rail.

Preferably, the steel rail includes a rail head, a rail waist and a rail bottom, and the rail waist is located between the rail head and the rail bottom; the laser emitting device is used to remove rust on the rail head or the rail waist.

Preferably, each mounting frame includes a first part and a second part, the first part is fixedly connected with the second vehicle body; the first part or the second part is bent and includes a bottom plate and side plates on both sides of the bottom plate; The bottom plate and the side plates on both sides of the bottom plate form a groove structure, and the second part can be placed in the groove structure of the first part;

An elongated through hole is opened at the middle of the bottom plate of the first part or the second part; the second part is inserted into the groove structure of the first part, and bolts are used to pass through the through holes of the first part and the second part, and the second part is inserted into the groove structure of the first part. The bottom plate of the first part and the bottom plate of the second part are clamped and fixed to realize the connection of the first part and the second part.

Preferably, the first laser emitting device is used for laser rust removal on the surface of the rail head, and the second laser emitting device is used for laser rust removal on the side surface of the rail waist;

The laser emitting device arranged on the first part of each mounting frame is the first laser emitting device, and the laser emitting device arranged on the second part is the second laser emitting device.

Preferably, the distance between the second laser emitting device and the rail is adjusted by changing the length of the second part penetrating the first part;

By changing the installation position of the first laser emitting device along the direction of the first part, the distance between the first laser emitting device and the rail is adjusted.

Preferably, the rust removal device includes at least four laser generators, and one laser generator corresponds to one laser emitting device.

Preferably, each laser generator is connected to the corresponding laser emitting device through an optical fiber, and the optical fiber is used for transmitting laser light.

Preferably, the smoke purifying device includes a universal vacuum hood with a bellows, and the universal vacuum hood extends toward the rail to collect exhaust gas and particulate matter generated by rust removal.

Another technical solution provided by the utility model is a rust removal method based on the above-mentioned rust removal device, comprising the following processes:

Adjust the installation position of the first laser emitting device on the first part on each mounting frame, so that each first laser emitting device is close to the rail head;

Adjust the length that the second part on each mounting frame penetrates into the first part, so that each second laser emitting device is close to the rail waist;

Adjust the universal vacuum hood so that it is close to the rail to be treated;

Start the smoke purification device and each laser generator, push the second trolley to move along the rail, and each laser emitting device performs laser rust removal on the surface of the rail head and the rail waist along the moving direction of the second trolley. The dust cover collects the exhaust gas and particulate matter generated by the rust removal along the moving direction of the second trolley.

Compared with the prior art, the rust removal device for rails provided by the utility model adopts laser to remove rust, which can significantly improve the operation efficiency and at the same time ensure the cleanliness of the rails, and effectively avoid the pollution of the rails by the contact type rust removal. The rust removal device of the utility model is provided with a smoke purification device, which can effectively collect the waste gas and particulate matter generated by the rust removal, purify the air and improve the working environment. The rust removal device for steel rails provided by the utility model has the advantages of simple operation, low equipment cost, high work efficiency, reduced labor intensity of construction personnel, improved construction environment, and good application prospect.

Description of drawings

Fig. 1 is the structural representation of the steel rail of the utility model;

Fig. 2 is the structural representation of the rust removal device of the utility model;

Fig. 3 is the structural schematic diagram of the mounting frame of the present invention;

FIG. 4 is a schematic diagram of the distribution of the laser emitting device according to the present invention.

Detailed ways

The present utility model will be further introduced below with reference to the accompanying drawings, by describing in detail the preferred specific embodiments.

FIG. 1 is a schematic structural diagram of the steel rail according to the utility model. As shown in FIG. 1 , the rail 600 includes a rail head 610 , a rail waist 620 and a rail bottom 630 ; the rail waist 620 is located between the rail head 610 and the rail bottom 630 , and the rail head 610 is located above the rail waist 620 , the rail bottom 630 is located below the rail waist 620 . Before performing the flash butt welding operation on the rail, the surface of the rail needs to be derusted. Specifically, the surface of the rail head 610 and the two side surfaces of the rail waist 620 are derusted.

FIG. 2 is a schematic structural diagram of the rust removal device according to the present invention. As shown in FIG. 2 , the rust removal device includes a first cart 100 , several laser generators 200 , a smoke purification device 300 , a second cart 400 and several laser emitting devices 500 .

The first cart 100 includes a first cart body 110 and a first wheel 120; the first wheel 120 is disposed at the bottom of the first cart body 110, so that the first cart 100 can move along the rail 600; in the embodiment of the present invention, the The bottom of the first vehicle body 110 is provided with four first wheels 120, as shown in FIG. 2; Several laser generators 200 and smoke purification devices 300 move along the rail 600 .

In the embodiment of the present invention, the first cart 100 is provided with four laser generators 200 (only two laser generators are shown in FIG. 2 ) and a smoke purification device 300 . Each laser generator 200 is provided with a resonant cavity (not shown in the figure) for generating laser light. A centrifugal fan (not shown in the figure) is provided inside the smoke purification device 300 for collecting exhaust gas and particulate matter generated by rust removal.

The second trolley 400 includes a second vehicle body 410, a second wheel 420 and two mounting brackets 430; the second wheel 420 is arranged at the bottom of the second vehicle body 410, so that the second trolley 400 can move along the rail 600; the utility model In the embodiment, the bottom of the second vehicle body 410 is provided with four second wheels 420, as shown in FIG. 2; 430 extends to the rail 600 below the second wheel 420 and is distributed on both sides of the rail 600; the mounting frame 430 is used to install the laser emitting device 500; the second trolley 400 carries the laser emitting device 500 and moves along the rail 600, passing the laser The emitting device 500 emits a laser to perform laser rust removal on the steel rail 600 .

In the specific embodiment of the present invention, the two mounting brackets 430 on the second trolley are asymmetrically arranged on both sides of the rail, that is, the two mounting brackets are staggered by a distance in the direction of the rail 600 and are located at different positions of the rail, respectively. The laser emitting device used to prevent the two mounting brackets from derusting a section of rail at the same time makes the temperature of the section of rail too high.

In the specific embodiment of the present invention, the structures of the first vehicle body 110 and the second vehicle body 410 are shown in FIG. 2 , the first vehicle body 110 and the second vehicle body 410 may also adopt other structures, or according to the application process. The specific structure of the vehicle body is not limited in the present invention, and is hereby explained.

FIG. 3 is a schematic structural diagram of the mounting frame according to the present invention. As shown in FIG. 3 , each mounting frame 430 includes a first part 431 and a second part 432 ; the first part 431 or the second part 432 is designed to be bent, and the bending angle can be specifically set as required. The new model does not limit this. The first part 431 or the second part 432 includes a bottom plate a and side plates b and c on both sides of the bottom plate; the bottom plate a and the side plates b and c on both sides of the bottom plate form a groove structure, and the second part 432 can be placed in a groove structure. and in the groove structure of the first part 431 . The first part 431 and the second part 432 are provided with an elongated through hole A in the middle of the bottom plate; the second part 432 is placed in the groove structure of the first part 431, so that the bottom plate of the first part is close to the second part 431. The bottom plate of the first part and the bottom plate of the second part are clamped and fixed by bolts passing through the through holes of the first part and the through holes of the second part, and by matching with the matching nuts, so as to realize the first part. 431 and the connection of the second part 432. Each mounting bracket is fixedly connected to the second vehicle body 410 through the first portion 431 .

FIG. 4 is a schematic diagram of the distribution of the laser emitting device according to the present invention. As shown in FIG. 4 , each mounting frame 430 is provided with at least two laser emitting devices, wherein one laser emitting device is arranged on the first part 431 of the installation frame, and the other laser emitting device is arranged on the second part of the installation frame 432. The laser emitting device arranged in the first part 431 is the first laser emitting device 510, and the first laser emitting device is used to remove rust on the surface of the rail head 610 of the rail; the laser emitting device arranged in the second part 432 is The second laser emitting device 520 is used for removing rust on the side surface of the rail waist 620 of the rail. The rust removal device provided by the present invention can adjust the distance between the first laser emitting device and the rail 600 by changing the installation position of the first laser emitting device 510 along the direction of the first part 431; Enter the length of the first part 431 to adjust the distance between the second laser emitting device 520 and the rail 600 . The laser emitting device 500 (including the first laser emitting device 510 and the second laser emitting device 520 ) can be fixedly installed on the mounting frame by welding, or can be installed and installed through a connector or other means, which is not limited in the present invention. .

In the rust removal device provided by the present invention, one laser generator 200 corresponds to one laser emitting device 500 . The laser generator 200 is connected to the corresponding laser emitting device 500 through an optical fiber (not shown in the figure), and the optical fiber transmits the laser light generated by the laser generator 200 to the corresponding laser emitting device 500, and emits the laser light through the laser emitting device 500. , Derusting the rail 600. In the embodiment of the present utility model, each laser generator 200 is also provided with ventilation equipment and water cooling circulation equipment (not shown in the figure), for cooling the resonant cavity and the corresponding laser emitting device. The water cooling circulation equipment includes two water pipes, which are connected to the laser emitting device corresponding to the laser generator. The light and two water pipes between each laser generator and the corresponding laser emitting device can be wrapped and protected by a corrugated pipe (not shown in the figure).

The smoke purification device 300 includes a universal vacuum hood with a bellows 310, and the universal vacuum hood or the bellows 310 is fixed on the second trolley 400, so that the universal suction The dust cover extends to the rail 600 to collect exhaust gas and particulate matter generated by rust removal.

When using the rust removal device provided by the present invention, firstly adjust the installation position of the first laser emitting device 510 on the first part 431 on each mounting frame, so that each first laser emitting device 510 is close to the rail head 610; The second part 432 on the mounting frame penetrates the length of the first part 431, so that each second laser emitting device 520 is close to the rail waist 620; adjust the universal dust cover to make it close to the steel rail 600 to be treated; start the smoke purification The device 300 and each laser generator 200 push the second trolley 400 to move along the rail 600, and each laser emitting device 500 performs laser rust removal on the surface of the rail head and the rail waist along the moving direction of the second trolley. Collect exhaust gas and particulate matter from rust removal to the hood along the moving direction of the second trolley.

Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be construed as limiting the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the foregoing. Therefore, the protection scope of the present invention should be defined by the appended claims.

Claims

A rust removal device for steel rails, characterized in that it comprises a first trolley, several laser generators, a smoke purification device, a second trolley and several laser emitting devices;

The first trolley includes a first car body and a first wheel, the first wheel is arranged at the bottom of the first car body and moves along the rail; the first car body is used for carrying the laser generator and the smoke purification device;

The plurality of laser generators are arranged on the first trolley, and each laser generator is provided with a resonant cavity for generating laser light;

The smoke purification device is arranged on the first trolley; the smoke purification device is provided with a centrifugal fan for collecting waste gas and particulate matter generated by rust removal;

The second trolley includes a second vehicle body, a second wheel and two mounting brackets. The second wheel is arranged at the bottom of the second vehicle body and moves along the rails; the two mounting brackets are fixedly arranged on the second vehicle body and extend toward the rail and distributed on both sides of the rail;

Each mounting frame is provided with two laser emitting devices, which are used to emit laser light to remove rust on the surface of the rail.
The rust removal device according to claim 1, wherein the two mounting brackets are asymmetrically arranged on both sides of the rail.
The rust removal device according to claim 1, wherein the steel rail comprises a rail head, a rail waist and a rail bottom, and the rail waist is located between the rail head and the rail bottom; the laser emitting device is used for aligning the rail head Or rail waist for rust removal.
The rust removal device according to claim 1, wherein each mounting frame comprises a first part and a second part, the first part is fixedly connected with the second vehicle body; the first part or the second part is a bent shape, It includes a bottom plate and side plates on both sides of the bottom plate; the bottom plate and the side plates on both sides of the bottom plate form a groove structure, and the second part can be placed in the groove structure of the first part;

An elongated through hole is opened at the middle of the bottom plate of the first part or the second part; the second part is inserted into the groove structure of the first part, and bolts are used to pass through the through holes of the first part and the second part, and the second part is inserted into the groove structure of the first part. The first floor and

The bottom plate of the second part is clamped and fixed to realize the connection between the first part and the second part.
The rust removal device according to claim 4, wherein the first laser emitting device is used for laser rust removal on the surface of the rail head, and the second laser emitting device is used for laser rust removal on the side surface of the rail waist;

The laser emitting device arranged on the first part of each mounting frame is the first laser emitting device, and the laser emitting device arranged on the second part is the second laser emitting device.
The rust removal device according to claim 5, wherein the distance between the second laser emitting device and the rail is adjusted by changing the length of the second part penetrating the first part;

By changing the installation position of the first laser emitting device along the direction of the first part, the distance between the first laser emitting device and the rail is adjusted.
The rust removal device according to claim 1, wherein the rust removal device comprises at least four laser generators, and one laser generator corresponds to one laser emitting device.
The rust removal device according to claim 1, wherein each laser generator is connected to the corresponding laser emitting device through an optical fiber, and the optical fiber is used for transmitting laser light.
The rust removal device according to claim 1, characterized in that the smoke purification device comprises a universal vacuum hood, the universal vacuum hood is provided with a bellows, and the universal vacuum hood extends to the rail to collect and remove the rust. generated exhaust gas and particulate matter.